CN103764892A - Domestic appliance having a touch-sensitive operator control and display device - Google Patents
Domestic appliance having a touch-sensitive operator control and display device Download PDFInfo
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- CN103764892A CN103764892A CN201280040809.6A CN201280040809A CN103764892A CN 103764892 A CN103764892 A CN 103764892A CN 201280040809 A CN201280040809 A CN 201280040809A CN 103764892 A CN103764892 A CN 103764892A
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- sensor electrode
- display unit
- housed device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C7/00—Stoves or ranges heated by electric energy
- F24C7/08—Arrangement or mounting of control or safety devices
- F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
- F24C7/086—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination touch control
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
- D06F34/32—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by graphical features, e.g. touchscreens
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4293—Arrangements for programme selection, e.g. control panels; Indication of the selected programme, programme progress or other parameters of the programme, e.g. by using display panels
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Push-Button Switches (AREA)
- Cookers (AREA)
- Electronic Switches (AREA)
Abstract
The invention relates to a domestic appliance having a touch-sensitive operator control and display device (1, 1') which has a display unit (11, 11') for displaying operator control information and has a transparent support part (3, 16) on which a capacitive sensor electrode (13, 13') is arranged as part of a touch capacitor (18) which is arranged so as to overlap with the display unit (11, 11') and so as to overlap with a touch-sensitive operating area (10, 10') of the operator control and display device (1, 1'), wherein the sensor electrode (13, 13') is formed from a transparent and electrically conductive coating and/or adhesive which contains carbon nanotubes. According to a second aspect of the invention, the sensor electrode (13, 13') extends over an at least predominant region of extent of the display unit (11, 11'), wherein the operator control and display device (1, 1') has voltage-limiting means for applying an electrical voltage (V) to the sensor electrode (13, 13'), tapping means for tapping off a respective electric current from at least two tapping points (20 to 23) of the sensor electrode (13, 13'), and also has an evaluation device (24) which, in dependence on the tapped-off currents, determines a contact point at which an operator touches the operating area (10, 10').
Description
The present invention relates to a kind of housed device with tactiosensible operation and display unit, this operation and display unit have display unit (display) and bearing part printing opacity or transparent for showing operation information, are provided with the part of capacitive sensor electrode as contact capacitor on this bearing part.Capacitive sensor electrode is overlapping with display unit, overlapping with tactiosensible operating surface or the contact-making surface of operation and display unit on the other hand on the one hand.Sensor electrode can consist of transparent conductive material.
Current focus especially focuses on light-emitting diode display, and it is with the capacitive operation device arranging.This display adopts light-emitting component-LED, whereby illumination functions symbol or displaying symbol in the back.This operation and display unit are for example known by document DE 102 36 718 A1.This operation and display unit contain guidance panel, and this guidance panel is the plastic injection-moulded member of the one made by ABS plastic.Guidance panel has ring illumination region, and in this field of illumination, the material thickness of panel material reduces to some extent than standard material thickness, makes field of illumination light-permeable.This field of illumination forms optical display-be provided with on the surface of field of illumination displaying symbol or functional symbol, and these symbols can be by illuminace component-such as light emitting diode-throw light on.Illuminace component is arranged on circuit board.In addition, at the back side of guidance panel, sensor electrode is installed, this sensor electrode is the part of capacitive switch or the part of contact capacitor.Sensor electrode is electrically connected with circuit board by coupling access component or contact, and then is electrically connected with analytic unit.
By the DE known a kind of operation for housed device of 28 24 973 A1 and display unit.On the circuit board being connected with all the other control assemblies of housed device by ribbon cable, the display of two row that are provided with character and symbol is installed.Operation panel or control panel that this display is provided with transparent metal face hide.These metal coverings form capacitive switch block with the face being positioned at below it, and this switch block causes instruction control.This display is for example equipped with the illuminace component that adopts LED or LCD technology.
Therefore, using transparent sensor electrode has been prior art, and described sensor electrode is arranged on display unit (display) top, or with display unit overlapping arrange, for example known by DE 103 26 684 A1.With regard to this tactiosensible operation and display unit, user can contact tactiosensible operating surface, so as operation housed device, this operating surface also with sensor electrode and display unit overlapping arrange.Sensor electrode thereby between operating surface and display unit, wherein, display unit can be felt by user because sensor electrode is transparent, and visually by sensor electrode, do not hidden.In the prior art, at this, adopt so-called ITO layer (indium-tin oxide), by described layer, form sensor electrode.This layer is transparent substantially for visible ray.But ITO layer has but run into the limit when it is applied on three-dimensional surface.It only can limitedly be applicable to this.Particularly when which is provided with the bearing part of sensor electrode have camber arch-such as protruding song or recessed song-when surface, such as the guidance panel of housed device is exactly this situation, ITO layer just cannot be used satisfactorily again.In addition, raw material are relatively costly than other conductive material.
When sensor electrode will be arranged on three-dimensional surface, ITO layer is not also suitable for capacitive operation and the display unit of housed device.Therefore cannot provide in the prior art its moulding to operate flexibly and display unit.Known operation and the flexibility of display unit are because material therefor has run into the limit.Multiple capacitive sensor electrodes of available technology adopting cause the further moulding that limits tactiosensible operating surface.Equally, used in the prior art multiple this sensor electrodes, their spaces turn up the soil-between display unit and operating surface-be arranged in operating surface after.User can only with the overlapping region of sensor electrode in operating of contacts face.This has also limited the flexibility aspect its design or moulding of operation and display unit.
The object of the invention is, propose a kind of housed device with operation and display unit, it can realize the flexibility aspect design or the moulding of operating surface, can also provide inexpensively simultaneously.
According to the present invention, this object by a kind of have according to the housed device of the feature of claim 1 and a kind of have according to the housed device of the feature of claim 3 be achieved.It described in dependent claims, description and accompanying drawing, is favourable design of the present invention.
According to a first aspect of the invention, housed device comprises tactiosensible operation and display unit, and it has the display unit (display) that is designed to show operation information.Operation and display unit also have bearing part printing opacity or transparent, are provided with the sensor electrode of capacitive conduction, as a part for contact capacitor (the second condenser armature is formed by user's finger) on this bearing part.Sensor electrode is overlapping with display unit, overlapping with the tactiosensible operating surface of operation and display unit on the other hand on the one hand.Sensor electrode thus be arranged on display unit and tactiosensible operating surface between.Operating surface can be contacted or click by user, for operating housed device.The regulation according to the present invention, sensor electrode by-at least for paint and/or the bonding agent of the conduction of visible ray-transparent, form, wherein, paint and/or bonding agent contain carbon nanometer tubule so-called " CNT " (CNT).
Effect of the present invention thereby realize by the certain material that use is used for sensor electrode, exactly, realizes by bonding agent and/or the paint of the conduction with printing opacity.Equally show, this material is obviously more suitable in being applied on three-dimensional surface than for example so-called ITO layer consisting of indium-tin oxide.Housed device of the present invention thereby tool have the following advantages: though that same bearing part has is three-dimensional-such as arching-surface, at least one sensor electrode also can be placed on bearing part, and without much costs.The layer consisting of indium-tin oxide only can limitedly be applicable to be applied on this surface, and transparent conductive paint and/or bonding agent also can be applied on surface recessed song or protruding song, and without much costs.The operation of housed device of the present invention and display unit thereby at random moulding or design-it can have different geometries, and can because the material of sensor electrode limits, it is not functional.Than raw material, the transparent conductive paint or the bonding agent that contain CNT are also relatively cheap, thereby can save on the whole cost.
Above-mentioned purpose also realizes by a kind of housed device according to second aspect present invention, it has tactiosensible operation and display unit, this device has display unit and bearing part printing opacity or transparent for showing operation information, on this bearing part, be provided with the part of capacitive sensor electrode as contact capacitor, this device is overlapping with display unit, overlapping with the tactiosensible operating surface of operation and display unit on the other hand on the one hand.Sensor electrode consists of transparent conductive material.Described-particularly unique-sensor electrode extends along at least most particularly whole extending range of display unit.Operation and display unit comprise that voltage produces mechanism, and it is designed to apply voltage on sensor electrode.Operation and display unit also have a point connection mechanism, and it is designed at least two tap positions of sensor electrode tapping current respectively.Analytical equipment is determined contact site according to the electric current of institute's tap, and operating personnel pass through sensor electrode operating of contacts face in this contact site.
According to a second aspect of the invention, housed device also has the following advantages: operation and display unit can realize flexibly or various design aspect its moulding.This moulding is not subject to the restricted number of sensor electrode equally, and it is used to respectively regulate the parameter of housed device in the prior art.The operation of housed device of the present invention and display unit are not limited to indivedual predetermined contact-making surface or switching surfaces.Continuously design along display unit at least the overwhelming majority elongated area stretch sensor electrode thereby also can realize whole operation and display unit are carried out to diversified design.This also has the following advantages: in operating process-for example when determining the parameter of the course of work of housed device-operating surfaces of different sizes can be provided, this is friendly especially to user.Operation and display unit thereby can be adjusted according to the operation scheme providing respectively or according to operational option of operation respectively.The continous mode of sensor electrode designs and is also responsible for realizing control or operation housed device by means of the gesture on operating surface or finger motion according to the feasible program at identifying operation of the present invention position.Can adopt thus the multiple different function that causes housed device for user close friend's mode.
According to the housed device of first aspect present invention and according to the housed device of second aspect present invention, also can mutually combine.Following embodiment both can be applicable to the housed device according to first aspect present invention, also can be applicable to the housed device according to its second aspect.
Housed device means a kind of equipment for doing housework current.Housed device be also a kind of for the treatment of family expenses object the equipment such as washing clothes, tableware, food etc.It can be large-scale housed device, such as washing machine, scrubbing-and-drying unit, dish-washing machine, digesting apparatus, cooker hood, cooling device, refrigeration-freezing unit equipment or air-conditioning equipment.But it can be also small-sized household equipment, such as full-automatic coffee machine or cooking machine.
Sensor electrode for example adopts spraying method or tampon printing method or method for printing screen or free shape face formative method or another kind of suitable method to be applied on bearing part.
Operation and display unit preferably have tabular transparent nonconducting plate, the tactiosensible operating surface of its positive formation, and this operating surface can be contacted or click by user, for operating housed device.Plate because of but the display window that formed by light transmissive material.Plate can be inserted in the through hole of guidance panel of housed device at this; It can be soldered in guidance panel.This plate and sensor electrode are overlapping; and overlapping with display unit; the tactiosensible operating surface of its positive formation; the advantage of using this plate to have is; can protect display unit to avoid external action on the one hand; on the other hand also can be in different ways the outer surface of design operation and display unit in appearance pleasantly, exactly, be independent of display unit design.Dissimilar equipment for example can be provided thus, its have respectively different plates-such as with different colours, and needn't redesign display unit.
Aspect material selection, shown advantageously, plate consists of transparent plastic.This material can carry out moulding equally in different ways, thereby also can realize dimensionally design operation face.
Plate also can by a kind of-particularly the material of colored-tone forms.The design of (colour) tone of plate is based on following understanding: electrically conducting transparent paint and/or bonding agent used may not have 100% transparency, but transparency can be between 80% ~ 100%.If use now the plate of full impregnated light, user also likely visually feels sensor electrode sometimes.For fear of this point, can adjust according to the transparency of conductive paint and/or bonding agent the transparency of plate.The plate consisting of the material of color shades is also responsible for not seeing at fore side or in operating surface side the space character (Sperrdruck) being located at if desired on this plate back side.
Sensor electrode is arranged on bearing part, and this bearing part can consist of plate itself.According to this embodiment, sensor electrode can be arranged on plate-with vis-a-vis-back side on.Sensor electrode is arranged on to the advantage having on plate is, without using independent bearing part, and plate is being born two kinds of different functions to a certain extent, on the one hand for blocking the function of operation and display unit, on the other hand for carrying the function of sensor electrode.Thereby can saving member.
Plate can recline and be arranged on display unit, thereby sensor electrode abuts on the plate back side on the one hand, abut on the other hand display unit on the front of plate.Thus, at least sensor electrode is crossed over the distance between display unit and plate, or fills up this distance.This advantage having is between operating surface and sensor electrode, there is no air gap, and air gap can be in the sensitivity that fundamentally worsens capacitive operation and display unit.
According to a kind of alternative embodiment, can stipulate, bearing part is transparent flexible membrane, thereby sensor electrode is placed on this film.This film can be arranged on display unit, thereby this film abuts on the plate back side on the one hand, abuts on the other hand on display unit.Sensor electrode this can be arranged on this film on the back side of display unit, but also can be arranged on this film on the front of plate.This film can consist of plastics.It can be monofilm or multilayer film.It can bond on plate, or directly adopts Shooting Technique or spray (Spritzpr gen) technique (IML, IMD technology) to carry out in rear spraying.By the hyaline membrane being printed, saved the direct printing to plate.The advantage that this embodiment also has is that plate itself needn't be adjusted geometry because of the serigraphy on the back side.This can realize the moulding more flexibly of operation and display unit.
Divide connection mechanism through suitably design, to make respectively at four of sensor electrode different tap position tapping currents.Then, analytical equipment can be determined contact site according to the electric current of institute's tap, and operating personnel are at this contact site operating of contacts face.Shown particularly advantageously the corresponding electric current of tap on all four angles of the sensor electrode of rectangle.Realize in this way with extra high accuracy and determine contact site.Can be by two coordinates altogether of knowing contact site at the electric current of four different tap position taps, exactly, one operating surface longitudinally on, another is at it transversely.To contact site determining cause and be not limited to a unique direction really, thus also can be by the contact of operating surface being caused to the multiple possible function of housed device.
The tap position of sensor electrode can be connected with capacitor electrode respectively, thereby detects corresponding electric current by capacitor, as moving by the electric charge that the contact of operating surface is caused.Can measure efficiently reliably thus electric current; Equally, the capacitor originally being charged discharges at least in part when operating of contacts face, thereby electric current flows through capacitor.These electric currents can detect apart from each other, and for determining contact site.Electric current flow through capacitor according to being, when operating of contacts face, form a kind of contact capacitor, it on the one hand has sensor electrode, has on the other hand operating personnel's finger, its cause the earth () current potential.So electric current this contact capacitor of also flowing through, moves thereby there is electric charge at the tap position of sensor electrode in capacitor.
As for detection of with analyze electric current or for changing the detection method of corresponding capacitance of capacitor, can adopt in principle any means, particularly adopt with the following method: electric charge shifts or successively approaches or ∑-Δ method or mutual capacitance measurement.
Analytical equipment can be determined contact site according to the ratio of the electric current of institute's tap.This can implement especially easily, thereby can know contact site with less technology cost.
Voltage organization of supply is preferably designed to apply respectively voltage at least two of sensor electrode different positions.At this, preferably at four of sensor electrode different positions, apply voltage respectively.Shown particularly advantageously, on all four angles of rectangular sensor electrode, applied voltage respectively.This embodiment be also responsible for can with higher accuracy not only sensor electrode longitudinally on but also at it, transversely know contact site, or can calculate two coordinates of contact site.By apply voltage on all four angles of sensor electrode, the capacitor being connected with these angles is charged, thereby can realize electric charge when operating of contacts face, moves.
Voltage can be DC voltage, but can be also alternating voltage-such as square-wave voltage.
If apply alternating voltage on sensor electrode, these alternating voltages just can have different frequency.The voltage applying at least two positions of sensor electrode thereby different aspect its frequency.This can realize in very special mode and determine contact site: in this embodiment, can carry out filtering to the electric current of tap, thereby obtain the unlike signal component of frequency of having nothing in common with each other, and be analyzed.So the amplitude of these different component of signals can form ratio, can know contact site according to this ratio.Guarantee in this way especially accurately to determine contact site.
Display unit can be any display in principle, such as TFT display or LCD display.But regulation in this embodiment, display unit is light-emitting diode display, and there is the light guide therefor or the light well that are designed to guide light, thereon with the overlapping ground of sensor electrode-after sensor electrode-be provided with at least one functional symbol as operation information.Display unit also can have-particularly with at least one light emitting diode-lighting device, this lighting device for carrying out in back lighting or visually highlight functional symbol when operating personnel contact tactiosensible operating surface in the region overlapping with functional symbol.Thereby according to this embodiment, operation and display unit are a kind of tactiosensible light-emitting diode displays, it is by the click of functional symbol being selected to the function of housed device, and by notifying choosing or clicking functional symbol to this symbol in back lighting.To operation and the operation of display unit thereby by operating surface contact carry out, exactly, with the overlapping region of sensor electrode and functional symbol in carry out.At this without move operation knob mechanically.This especially means, adopts the guidance panel of this operating means can be without the surface that is interruptedly configured with sealing, and it is special that this has advantages of housed device: do not have dirt and enter into device interior, can also clean especially easily the surface of sealing.
In light guide therefor, can be provided with film, it is with at least one functional symbol.It can be character film or photomask.At least one functional symbol thereby can adopt various mode to design, exactly, is independent of the design of light guide therefor.Thereby only need to use respectively different character films for different country or dissimilar equipment, and other assembly-particularly light guide therefor itself-can retain.
Can also be with common sensor electrode in light guide therefor overlapping ground-after sensor electrode-be provided with multiple functional symbols.By in the region overlapping with one of functional symbol to the contacting of operating surface, can visually highlight same functional symbol by lighting device, with respect to other functional symbol, highlighted respectively.This seems it can is for example like this: by being worth accordingly with this functional symbol of parameter that contacts to select housed device to operating surface in the region overlapping with one of functional symbol.Can select thus the different value of parameter, or also can and by common unique sensor electrode, regulate multiple parameters of housed device by means of tactiosensible operating surface.
Thereby can arrange multiple functional symbols that throw light on that are separated from each other to sensor electrode, the overlapping ground of these functional symbols and common sensor electrode-after sensor electrode-be arranged in light guide therefor, and represent respectively the parameter value of housed device.Thereby can utilize respectively functional symbol to inform the selection to parameter value.By to the click of one of functional symbol or operating surface with the overlapping region of this functional symbol in parameter value is selected.By analytical equipment by the electric current of tap-as mentioned above-know and clicked which functional symbol.Determine contact site, in this contact site, operating personnel have contacted operating surface for this reason.
Can in light guide therefor, be provided with accordingly different functional symbols, it can be illuminated in the back by means of lighting device, sees through light guide therefor and throw light on.Functional symbol represents respectively another value of the parameter of housed device.Except numeral or number-such as temperature value or tachometer value-, parameter value current can also be title or alphabetic string, i.e. the different working procedures of for example housed device and/or different additional functions.Parameter can be also for example that the working procedure-parameter value of housed device is the title of concrete working procedure at this.Equally, as parameter, also can regulate the additional function of housed device, for washing machine, " slightly dry " such as being or " washing in advance ".Functional symbol comprises character and/or numeral and/or icon or graphical symbol and/or composite symbol conventionally, such as word-figure-symbol.
Operation and display unit can be designed at least one following parameter of the working procedure that regulates housed device:
It can be designed to regulate the running temperature as parameter.Display unit can have multiple illuminable functional symbols at this, and these functional symbols represent respectively the optional value of running temperature.This embodiment has shown to be particularly conducive to especially, is used for nursing the housed device of washing clothes-such as washing machine or scrubbing-and-drying unit, but is also conducive to dish-washing machine or is used for preparing the housed device of food-such as baking box and/or the kitchen range top.Operating personnel can click tactiosensible operating surface for desirable temperature value, to regulate this temperature value.
Addedly or alternatively, operation and lighting device can be designed to the movement velocity of the assembly that regulates housed device-such as the rotating speed of cleaning-drum.At this, display unit can have multiple illuminable functional symbols, and these functional symbols represent respectively the optional value of movement velocity.This embodiment is particularly conducive to the housed device with movable-component, such as cleaning-drum etc.
Addedly or alternatively, operation and lighting device also can be designed to definite working procedure as parameter.According to this embodiment, display unit can have multiple illuminable functional symbols, and these functional symbols represent respectively different working procedures.This is correspondingly applicable to the additional function of housed device.Thereby each functional symbol can represent respectively another additional function of housed device.
Further feature of the present invention can be obtained by claims, accompanying drawing and accompanying drawing.Whole features of mentioning in description above and Feature Combination and subsequently feature and Feature Combination that mention and/or that illustrate separately in the accompanying drawings in accompanying drawing explanation, not only can be applied in the combination providing respectively, and can be applied in other combination, but also can apply separately.
By each preferred embodiment and with reference to accompanying drawing in detail the present invention is described in detail now.
Wherein:
Fig. 1 is the operation of housed device and the schematic diagram of display unit of first embodiment of the invention;
Fig. 2 is the operation of housed device second embodiment of the invention and the schematic diagram of display unit; With
Fig. 3 is schematic schematic diagram, will in detail mode that determine contact site be described in detail whereby.
Shown in Fig. 1 for the washing machine in this embodiment of the housed device that is not shown specifically in the accompanying drawings--operation and the schematic diagram of display unit 1.Operation and display unit 1 are tactiosensible light-emitting diode displays, and it has multiple functional symbols that can be illuminated in the back.Operation and display unit 1 comprise following assembly: the light guide therefor 2 which is provided with functional symbol; And plate 3.
Light guide therefor 2 is the light wells for guiding light.Light guide therefor 2 on the front 4 of plate 3, be provided with character film 5, it is for example photomask.Character film 5 has multiple functional symbols, exactly in this example, has three row functional symbols, i.e. first row functional symbol 6, secondary series functional symbol 7 and the 3rd row functional symbol 8.First row functional symbol 6 represents respectively another value of washing machine operating temperature.The parameter value of functional symbol 6 thereby expression parameter " operating temperature ".Secondary series functional symbol 7 represents respectively to dry for washing machine another value of the rotating speed of the cleaning-drum of operation.Row functional symbol 7 thereby expression parameter " rotating speed ".The 3rd row functional symbol 8 is containing the multiple different symbol that is useful on washing machine additional function.They are: " fast ", " slightly drying ", " adding water ", " rinsing again ", " brute force " and " washing in advance ".
Plate 3 is transparent or the plate of printing opacity, and it for example can consist of transparent plastic.It can be colored.Plate 3 is a kind of tabular flat firm parts own.The front 9 of plate 3 forms tactiosensible operating surface 10 simultaneously, and it can be contacted by user, for selecting parameter value.By the contact to operating surface 10, user can regulate the above-mentioned parameter of washing machine, or selects described parameter value.This is by carrying out the simple click of functional symbol 6,7,8.
Light guide therefor 2, together with the functional symbol 6,7,8 of establishing thereon, also has other assembly if desired, such as described lighting device, forms on the whole display unit 11, and it is for showing operation information, for showing the parameter value of selecting respectively.
With the transparent sensor electrode 13 of conduction that is provided with the whole back side 12 of unique covering plate 3 on the positive 9 relative back sides 12 of plate 3 as the part of contact capacitor.Thereby in this embodiment, sensor electrode 13 extends along the whole surface at the back side 12, therefore also along the whole extending range of display unit 11, extends.Sensor electrode 13 abuts on the back side of plate 3 on the one hand under installment state, abuts on the other hand on the front 4 of light guide therefor 2.Distance between sensor electrode 13 thereby leap plate 3 and light guide therefor 2.
On the right side of light guide therefor 2, also have other symbol 14, it represents the different phase of washing process.These symbols 14 can be undertaken in back lighting by each LED.
Below symbol 14, have individual viewing area 15, it is with four seven segmentation display parts, and these display parts are used for showing until washing process finishes the previous duration.By viewing area 15 thereby will show remaining time of washing process.
The plate 3 consisting of transparent plastic is welded in the guidance panel of washing machine.In the prior art, if plate 3 or its back side 12 are three dimensional design, if or plate 3 be spill or convex, sensor electrode 13 is applied to and on plate 3, has just run into its limit.In the prior art, must and lay between the engineering feasibility of sensor electrode 13 and weigh in operation and the flexibility of display unit 1 and design here.Adopt equally, in the prior art so-called ITO layer (indium-tin oxide).This material can not be applied on arbitrary surfaces, thereby must seek new solution, so that sensor electrode 13 also can be applied on the plate 3 of any design.
In this embodiment, sensor electrode 13 consists of transparent conductive paint, and/or consists of transparent electrically conducting adhesive.Equally showing, this material can be applied on three-dimensional surface especially simply-such as being applied on plate 3 bending or arching-, and without standing, the moulding of operation and display unit 1 is limited.Operation and display unit 1 or at random moulding of plate 3 or design on the one hand thus; Also can realize efficiently and reliably sensor electrode 13 is applied on plate 3 on the other hand.
In addition, the selected materials of sensor electrode contains the nanometer tubule consisting of carbon, and so-called " CNT " (CNT).Distribution according to nano particle in material and/or crosslinked situation, this material is transparent and electrically conductive.Nanometer tubule is elongated carbon structure at this, and it longitudinally has in the particularly size within the scope of 1 ~ 2 nm of some nanometers transverse to it.
Than relatively costly raw material, conduction and the transparent paint that contains CNT and bonding agent are that obviously improve useful substitutes.
Improve the implementation of operation and the design flexibility of display unit 1 in addition: be different from the multiple Miniature Sensor electrodes that are arranged side by side of prior art-adopted there-, use a unique large-scale sensor electrode 13, it is substantially along whole extension of display unit 11.Unlike the prior art, utilize this sensor electrode 13 no longer produce-such as the moulding complexity due to plate 3 causes-occur between two adjacent sensor electrodes the danger of short circuit.Current, can all be provided with conductive layer (sensor electrode 13) to simply the whole back side 12, and can not limit due to multiple sensor electrodes the moulding of plate 3.
Figure 2 illustrates washing machine according to the operation of second embodiment of the invention and display unit 1 '.This operation and display unit 1 ' are substantially corresponding to according to the operation of Fig. 1 and display unit 1, therefore the difference between them is only described in detail in detail below:
According in the embodiment of Fig. 2, sensor electrode 13 ' be placed on the flexible membrane 16 being formed by plastics, this film can be monofilm or multilayer film.Film 16-such as plate 3 '-by transparent material, formed.Sensor electrode 13 ' for example can extend along the whole surface of film 16.Sensor electrode 13 ' be preferably placed in film 16 towards light guide therefor 2 ' the back side on.Thus can without much costs make sensor electrode 13 ' be electrically connected with described analytical equipment.
Under installment state, film 16 abut on the one hand plate 3 ' the back side 12 ' upper, abut on the other hand light guide therefor 2 ' front 4 ' on.
Plate 3 ' thereby there is no conducting element.
As according in the embodiment of Fig. 1, according in the embodiment of Fig. 2, sensor electrode 13 ' also formed by the colored varnish and/or the bonding agent of the conduction that preferably contains CNT.
As already described, the analytical equipment contact site of can seeking knowledge, in this contact site, operating personnel are to operating surface 10,10 ' contact, to select a parameter value from described parameter value.Figure 3 illustrates the schematic diagram of determining contact site for introducing.Show sensor electrode 13,13 ', it has certain Ohmic resistance, as with as shown in resistor symbols 17.If operating personnel contacted operating surface 10,10 ', will form a contact capacitor 18, this contact capacitor by sensor electrode 13,13 ' form, is formed by operating personnel's finger 19 on the one hand on the other hand.The sensor electrode 13,13 of rectangle ' have four angles 20,21,22,23.Each angle 20 ~ 23 is electrically connected with analytical equipment 24, this analytical equipment and ground 25(the earth) be electrically connected.Operating personnel also cause ground potential.
Analytical equipment also contains voltage and produces mechanism and point connection mechanism 26, they for sensor electrode 13,13 ' on apply voltage and sensor electrode 13,13 ' on tapping current.Exactly, on each angle 20 ~ 23, apply respectively the voltage V with respect to ground 25.These voltages can be identical voltage, but can be also the voltage with different amplitudes respectively.Voltage V can be DC voltage, but can be also alternating voltage.Each angle 20 ~ 23 is also connected with capacitor 27,28,29,30 respectively.On the other hand, capacitor 27 ~ 30 can be connected with ground 25.
Due to sensor electrode 13,13 ' Ohmic resistance, sometimes without using the additional resistance of connecting with capacitor 27 ~ 30.
If apply alternating voltage on angle 20 ~ 23, also can stipulate, these voltages have respectively another frequency.So the electric current detecting has the different unlike signal component of frequency.So these electric currents can stand frequency filtering, thereby know the amplitude of each component of signal or frequency component.So can recently determine contact site according to the amplitude of different frequency component.
List of numerals
1,1 ' operation and display unit
2,2 ' light guide therefor
3,3 ' plate
4,4 ' front
5,5 ' character film
6,7,8,6 ', 7 ', 8 ' functional symbol
9,9 ' front
10,10 ' operating surface
11,11 ' display unit
12,12 ' back side
13,13 ' sensor electrode
14,14 ' symbol
15,15 ' viewing area
16 films
17 resistor symbols
18 contact capacitors
19 fingers
20 ~ 23 jiaos
24 analytical equipments
25 ground
26 voltages produce mechanism, point connection mechanism
27 ~ 30 capacitors
V voltage
Claims (15)
1. a housed device, with tactiosensible operation and display unit (1, 1 '), this operation and display unit have the display unit (11 for showing operation information, 11 ') and transparent bearing part (3, 16), on this bearing part, be provided with capacitive sensor electrode (13, 13 ') as the parts of contact capacitor (18), sensor electrode and display unit (11, 11 ') overlapping, and with operation and display unit (1, 1 ') tactiosensible operating surface (10, 10 ') overlapping, wherein, sensor electrode (13, 13 ') by paint and/or the bonding agent of transparent conduction, formed, it is characterized in that, paint and/or bonding agent contain the nanometer tubule consisting of carbon.
2. housed device as claimed in claim 1, is characterized in that, sensor electrode (13,13 ') extends along at least most particularly whole extending range of display unit (11,11 '), and operation and display unit (1,1 ') comprising:
-for execute alive voltage on sensor electrode (13,13 '), produce mechanism (26);
-for point connection mechanism (26) at least two tap positions (20 ~ 23) of sensor electrode (13,13 ') tapping current respectively;
-analytical equipment (24), it is designed to determine contact site according to the electric current of institute's tap, operating personnel in this contact site by sensor electrode (13,13 ') operating of contacts face (10,10 ').
3. a housed device, with tactiosensible operation and display unit (1, 1 '), this operation and display unit have the display unit (11 for showing operation information, 11 ') and transparent bearing part (3, 16), on this bearing part, be provided with capacitive sensor electrode (13, 13 ') as the parts of contact capacitor (18), sensor electrode and display unit (11, 11 ') overlapping, and with operation and display unit (1, 1 ') tactiosensible operating surface (10, 10 ') overlapping, wherein, sensor electrode (13, 13 ') by the material of transparent conduction, formed, it is characterized in that, sensor electrode (13, 13 ') along display unit (11, 11 ') at least most particularly whole extending range extend, operation and display unit (1, 1 ') comprising:
-for execute alive voltage on sensor electrode (13,13 '), produce mechanism (26);
-for point connection mechanism (26) at least two tap positions (20 ~ 23) of sensor electrode (13,13 ') tapping current respectively;
-analytical equipment (24), it is designed to determine contact site according to the electric current of institute's tap, operating personnel in this contact site by sensor electrode (13,13 ') operating of contacts face (10,10 ').
4. housed device as claimed in claim 3, is characterized in that, sensor electrode (13,13 ') consists of paint and/or the bonding agent of the nanometer tubule that containing of transparent conduction consists of carbon.
5. as housed device in any one of the preceding claims wherein, it is characterized in that, operation and display unit (1,1 ') comprise tabular transparent nonconducting plate (3,3 '), and the front (9,9 ') of plate forms tactiosensible operating surface (10,10 ').
6. housed device as claimed in claim 5, it is characterized in that, bearing part (3,16) is plate (3), sensor electrode (13,13 ') is arranged on the back side (12,12 ') of plate (3,3 '), wherein, plate (3,3 ') is suitably arranged with respect to display unit (11,11 '), sensor electrode (13,13 ') is abutted on the back side (12,12 ') of plate (3,3 ') on the one hand, abut on the other hand on the front (4,4 ') of display unit (11,11 ').
7. housed device as claimed in claim 5, it is characterized in that, bearing part (3,16) is transparent flexible membrane (16), sensor electrode (13,13 ') is placed on this film (16), wherein, it is upper that this film (16) is arranged on display unit (11,11 '), upper thereby this film (16) abuts in the back side (12,12 ') of plate (3,3 ') on the one hand, abuts on the other hand on display unit (11,11 ').
8. the housed device as described in any one in claim 2 ~ 7, it is characterized in that, point connection mechanism (26) is designed to respectively at four of sensor electrode (13,13 ') different tap positions (20 ~ 23) particularly at the upper tapping current in all angles (20 ~ 23) of rectangular sensor electrode (13,13 '), and analytical equipment (24) is designed to determine contact site according to the electric current of institute's tap.
9. the housed device as described in any one in claim 2 ~ 8, it is characterized in that, the tap position (20 ~ 23) of sensor electrode (13,13 ') is electrically connected with capacitor (27 ~ 30) respectively, and corresponding electric current is as because the electric charge of locating at capacitor (27 ~ 30) that the contact of operating surface (10,10 ') is caused moves and can be detected.
10. the housed device as described in any one in claim 2 ~ 9, is characterized in that, analytical equipment (24) is designed to determine contact site according to the ratio of the electric current of institute's tap.
11. housed devices as described in any one in claim 2 ~ 10, is characterized in that, voltage produce mechanism (26) be designed to respectively at least two of sensor electrode (13,13 ') particularly four different positions apply voltage (V).
12. housed devices as claimed in claim 11, is characterized in that, described voltage (V) is DC voltage.
13. housed devices as claimed in claim 11, is characterized in that, described voltage is the alternating voltage (V) particularly respectively with different frequency.
14. as housed device in any one of the preceding claims wherein, it is characterized in that, display unit (11,11 ') comprising:
-for guiding the light guide therefor (2,2 ') of light, in light guide therefor with sensor electrode (13,13 ') overlapping be provided with at least one functional symbol (6,7,8,6 ', 7 ', 8 ') as operation information; With
-lighting device, its for when operating personnel with functional symbol (6,7,8,6 ', 7 ', 8 ') overlapping region when tactiosensible operating surface (10,10 ') is contacted to functional symbol (6,7,8,6 ', 7 ', 8 ') carry out in back lighting.
15. housed devices as claimed in claim 14, it is characterized in that, the upper and common sensor electrode (13,13 ') of light guide therefor (2,2 ') overlapping be provided with multiple functional symbols (6,7,8,6 ', 7 ', 8 '), by with functional symbol (6,7,8,6 ', 7 ', 8 ') one of in overlapping region to the contacting of operating surface (10,10 '), can by lighting device visually highlight same functional symbol (6,7,8,6 ', 7 ', 8 ').
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011081332.2 | 2011-08-22 | ||
| DE102011081332A DE102011081332A1 (en) | 2011-08-22 | 2011-08-22 | Household appliance with a touch-sensitive operating and display device |
| PCT/EP2012/065817 WO2013026732A2 (en) | 2011-08-22 | 2012-08-13 | Domestic appliance having a touch-sensitive operator control and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103764892A true CN103764892A (en) | 2014-04-30 |
Family
ID=46758727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280040809.6A Pending CN103764892A (en) | 2011-08-22 | 2012-08-13 | Domestic appliance having a touch-sensitive operator control and display device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2748368B1 (en) |
| CN (1) | CN103764892A (en) |
| DE (1) | DE102011081332A1 (en) |
| RU (1) | RU2586829C2 (en) |
| WO (1) | WO2013026732A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112690736A (en) * | 2019-10-23 | 2021-04-23 | emz-汉拿两合有限公司 | Sensor for installation in a household appliance |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013113772A1 (en) | 2013-12-10 | 2015-06-11 | Pas Deutschland Gmbh | Method for operator guidance, panel component, production of a panel component and domestic appliance with a panel component |
| IT201600107154A1 (en) * | 2016-10-25 | 2018-04-25 | Candy Spa | Dashboard for household appliances and appliances equipped with this dashboard. |
| WO2023115730A1 (en) * | 2021-12-24 | 2023-06-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance and control method and control apparatus therefor, and readable storage medium |
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Also Published As
| Publication number | Publication date |
|---|---|
| RU2586829C2 (en) | 2016-06-10 |
| EP2748368A2 (en) | 2014-07-02 |
| RU2014109034A (en) | 2015-09-27 |
| EP2748368B1 (en) | 2021-03-31 |
| DE102011081332A1 (en) | 2013-02-28 |
| WO2013026732A2 (en) | 2013-02-28 |
| WO2013026732A3 (en) | 2013-05-02 |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Munich, Germany Applicant after: BSH Household Electrical Appliance Co., Ltd Address before: Munich, Germany Applicant before: BSH Bosch and Siemens Household Appliances Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: Free format text: CORRECT: APPLICANT; FROM: BOSCH UND SIEMENS HAUSGERATE GMBH TO: BSH HOME APPLIANCES CO., LTD. |
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Application publication date: 20140430 |
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| RJ01 | Rejection of invention patent application after publication |