CN102401544A - Refrigerator with door opening delay alarm - Google Patents
Refrigerator with door opening delay alarm Download PDFInfo
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- CN102401544A CN102401544A CN2011104064812A CN201110406481A CN102401544A CN 102401544 A CN102401544 A CN 102401544A CN 2011104064812 A CN2011104064812 A CN 2011104064812A CN 201110406481 A CN201110406481 A CN 201110406481A CN 102401544 A CN102401544 A CN 102401544A
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Abstract
The invention provides a refrigerator with a door opening delay alarm. The refrigerator comprises a refrigerator body, a rotary door body, a detection module, a delay detection module, the alarm and a control module. The opening state of the rotary door body is detected according to the state of a first switch in the detection module and a first opening signal is output; the opening state of the rotary door body is detected according to the state of a second switch in the delay detection module, and a second opening signal is output after the rotary door body is detected to be positioned in the opening state and preset time is delayed; and the control module is connected with the detection module and the delay detection module and is used for starting the alarm after the first opening signal output by the detection module and the second opening signal output by the delay detection module are detected. A mechanical refrigerator has a door body opening/closing alarm function and the production cost is lower.
Description
Technical field
The present invention relates to refrigeration plant design and manufacturing technology field, particularly a kind of have a refrigerator that door is driven the delayed alarm device.
Background technology
Refrigerator is one of family's household electrical appliances commonly used, and frequency of utilization is generally higher, thereby causes the switching frequency of door body of refrigerator also higher.In use, if the adhesive of Men Tiyu casing is bad, be easy to occur the situation that Men Wei fastens.This will cause the power consumption of refrigerator work big, and the food of storage is also apt to deteriorate simultaneously.
Therefore the traditional mechanical refrigerator does not need single-chip microcomputer that the work of each load is controlled because volume is less and cost is lower.But, also cause the traditional mechanical refrigerator not have door to open the function of warning, thereby under the situation that refrigerator doors is not fastened, can not in time remind the user, so that cause that cryogenic temperature is not enough in the refrigerator, problems such as food spoilage.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.For this reason, the objective of the invention is to propose a kind of refrigerator that door is driven the delayed alarm device that has, this refrigerator adopts lower-cost components and parts can realize starting warning function according to detected door start signal and time delayed signal.
For realizing above-mentioned purpose, embodiments of the invention have proposed a kind of refrigerator that door is driven the delayed alarm device that has, and comprising: casing; The revolving door body, said revolving door body is installed on the said casing through hinge; Detection module is used for the opening of the said revolving door body of state-detection through said detection module first switch and exports first start signal; Detect time delay module; The edge is perpendicular to the direction interval preset distance of said hinge between first switch of said detection module and the second switch of said detection time delay module; And the distance of the said hinge of said first switch distance is greater than the distance of the said hinge of said second switch distance; Said detection time delay module is used for the opening through the said revolving door body of the state-detection of said second switch, and detect that said revolving door body is in opening and the Preset Time of delaying time after export second start signal; Alarm; And control module; Said control module all links to each other with the detection time delay module with said detection module, and said control module is used for after second start signal of first start signal that detects said detection module output and the output of said detection time delay module, starting said alarm.
The refrigerator that door is driven the delayed alarm device that has according to the embodiment of the invention utilizes discharging and recharging of electrochemical capacitor to realize the function of delaying time, and has realized the long-time warning function that does not close of refrigerator doors with ball bearing made using, has simplicity of design, lower-cost advantage.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the structured flowchart that door is opened the refrigerator of delayed alarm device that has according to the embodiment of the invention;
Fig. 2 is the sketch map that door is opened the refrigerator of delayed alarm device that has according to the embodiment of the invention; And
Fig. 3 is the circuit diagram that door is opened the refrigerator of delayed alarm device that has according to the embodiment of the invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; It will be appreciated that; Term " vertically ", " laterally ", " on ", the orientation of indications such as D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relation be for based on orientation shown in the drawings or position relation; Only be to describe with simplifying for the ease of describing the present invention; Rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, unless otherwise prescribed and limit, need to prove; Term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be mechanical connection or electrical connection; Also can be the connection of two element internals, can be directly to link to each other, and also can link to each other indirectly through intermediary; For those of ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be.
With reference to figure 1 and Fig. 2 the refrigerator 100 that door is driven the delayed alarm device that has according to the embodiment of the invention is described below.
As depicted in figs. 1 and 2, the refrigerator 100 of driving the delayed alarm device that has that the embodiment of the invention provides comprises: casing 50, revolving door body 60, detection module 10, detection time delay module 20, control module 30 and alarm 40.Wherein, revolving door body 60 is installed on the casing 50 through hinge, has first K switch 1 in the detection module 10, detects in the time delay module 20 to have second switch K2; Detection module 10 is through the opening of the state-detection revolving door body 60 of first K switch 1, when detecting revolving door body 60 and be in opening, and detection module 10 outputs first start signal; Detect the opening of time delay module 20, when detecting revolving door body 60 and be in opening, detect time delay module 20 outputs second start signal after the time-delay Preset Time through the state-detection revolving door body 60 of second switch K2; Control module 30 all links to each other with detection time delay module 20 with detection module 10 respectively, is used for after second start signal of first start signal that detects detection module 10 outputs and 20 outputs of detection time delay module, starting alarm 40 execution warning functions.
As shown in Figure 2, revolving door body 60 is connected on the casing 50 through hinge 70.Line direction between first K switch 1 and the second switch K2 is along the direction perpendicular to hinge 70, first K switch 1 and second switch K2 each interval preset distance, and the distance of first K switch 1 and hinge 70 is greater than the distance of second switch K2 and hinge 70.
As shown in Figure 3, detection module 10 comprises the first ac input end A point, the second ac input end B point, first K switch 1 and rectification step-down submodule.One end of first K switch 1 links to each other with the first ac input end A point, and first K switch, 1 conducting when revolving door body 60 is opened, first K switch 1 was broken off when revolving door body 60 was closed.The first input end of rectification step-down submodule links to each other with the other end of first K switch 1; Second input of rectification step-down submodule links to each other with the second ac input end B point; Rectification step-down submodule is used for the alternating voltage of input is carried out capacitance-resistance rectification step-down to form DC voltage; And through DC voltage for detecting time delay module 20, control module 30 and alarm 40 power supplies, and be first start signal with this DC voltage.
In one embodiment of the invention, the first ac input end A point, the second ac input end B point can be imported the power frequency forceful electric power signal of 220V/50Hz between the two, behind rectification step-down submodule, are converted into 5V direct current weak electric signal VCC and supply other module work.
In one embodiment of the invention, according to electrical safety general knowledge, switch should join with zero line, is the zero line input so the first ac input end A point is preferably arranged, and the second ac input end B point is the live wire input.
In one embodiment of the invention; Rectification step-down submodule adopts the technology of the common resistance-capacitance type rectification reduction voltage circuit in this area to realize rectification step-down purpose; Comprise bleeder resistor R1, decompression capacitor C1, bridge rectifier diode, be respectively the first diode D1 to the, four diode D4, zener diode (ZD), filter capacitor C2 and filter resistance R2.It is pointed out that this resistance-capacitance type rectification reduction voltage circuit only is for exemplary purposes, rather than in order to limit protection scope of the present invention.
Detect time delay module 20 and comprise second switch K2, capacitor C 3 and driven element module.The end of second switch K2 links to each other with rectification step-down submodule, and second switch K2 breaks off when revolving door body 60 is opened, and when revolving door body 60 is closed, utilizes the magnetic door strip of paper used for sealing on the refrigerator to make second switch K2 conducting.One end of capacitor C 3 links to each other with the other end of second switch K2, the other end ground connection of capacitor C 3.Capacitor C 3 is charged according to the DC voltage of rectification step-down submodule output when second switch K2 is closed.When second switch broke off, capacitor C 3 complete charge began discharge.In the discharge process; Triode Q1 in the driven element module and triode Q2 conducting; Voltage between capacitor C 3 two ends reduces gradually; Triode Q1 and triode Q2 turn-off when the voltage at capacitor C 3 two ends is under the triode conducting voltage, by second start signal of VCC through 4 pairs of control modules of resistance R, 30 output high level.
In one embodiment of the invention, second switch K2 is a tongue tube.Tongue tube is a kind of switch of magnetosensitive, and tongue tube is simpler than common mechanical construction of switch, volume is little, speed is high, long working life; And compare with electronic switch, it has characteristics such as anti-load shock ability is strong again, and functional reliability is very high.
In one embodiment of the invention, capacitor C 3 is an electrochemical capacitor.Electrochemical capacitor is compared with other electric capacity, has the big characteristics of capacitance per unit volume amount, and rated capacity can accomplish greatlyyer, and has advantage cheap and easy to get.
In one embodiment of the invention, detect the Preset Time of time delay module through the capacitance adjustment of adjustment capacitor C 3.Particularly, the capacitance of capacitor C 3 is big more, and Preset Time is long more.
In one embodiment of the invention; Control module 30 also comprises and judges submodule; Be used for after second start signal of first start signal that receives detection module output and the output of detection time delay module, above-mentioned two start signal being carried out and operation with the judgement submodule.When first start signal and second start signal were high level, then alarm 40 was warned.
In one embodiment of the invention, adopt the 5th diode D5 and two discrete components of the 6th diode D6 to realize logical.It is pointed out that this mode only for exemplary purposes, rather than in order to limit protection scope of the present invention.
In an example of the present invention, alarm 40 is installed in the side near hinge 70, and first K switch 1 then is installed in the side away from hinge 70.Thereby, to open the door with at closing time the user, it is poor that the action of first K switch 1 and second switch K2 has the regular hour.Detecting time delay module 20 utilizes the above-mentioned time difference that electrochemical capacitor C3 is charged.
Contact Fig. 1 to Fig. 3 describes the duty that door is opened the refrigerator of delayed alarm device that has of the present invention's proposition below.
At first it is to be noted; As indicated above; Distance between first K switch 1 and the hinge 70 is greater than the distance between second switch K2 and the hinge 70, so refrigerator revolving door body 60 opens or closes in a flash, it is poor that 1 action of first K switch and second switch K2 action have certain hour.
When the moment that revolving door body 60 is opened, 1 conducting of first K switch, detection module 10, detection time delay module 20, control module 30 and alarm 40 power on, and detection time delay module 20 picks up counting.Rectification step-down submodule in the detection module 10 is converted into direct current light current VCC output with industrial-frequency alternating current, and to first start signal of control module 30 input high levels.At this moment, originally second switch K2 keeps closure state momently, breaks off after a while.Second switch K2 keep closed during this period of time in, capacitor C 3 quick charges, triode Q1, triode Q2 conducting simultaneously, 20 pairs of control module 30 output low levels of second detection module.After second switch K2 broke off, capacitor C 3 began discharge.By the time after capacitor C 3 was discharged fully, if revolving door body 70 is not closed yet at this moment, then second switch K2 still for breaking off, detected second start signal of time delay module 20 input high levels.When control module 30 receives first start signal and second start signal when being high level signal,, drive alarm element 41 and report to the police alarm 40 input high level signals.
In one embodiment of the invention, detection module 10, detection time delay module 20, control module 30 and alarm 40 can be integrated on PCB (PrintedCircuitBoard, the printed circuit board (PCB)) plate.This pcb board can be installed in the mounting groove of the top of casing 50 reserving.And this pcb board can directly be connected in the major loop of first K switch 1, thus turning on and off by the integrated function of first K switch, 1 control pcb board.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although and illustrate and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (8)
1. a refrigerator is characterized in that, comprising:
Casing;
The revolving door body, said revolving door body is installed on the said casing through hinge;
Detection module is used for the opening of the said revolving door body of state-detection through said detection module first switch and exports first start signal;
Detect time delay module; The edge is perpendicular to the direction interval preset distance of said hinge between first switch of said detection module and the second switch of said detection time delay module; And the distance of the said hinge of said first switch distance is greater than the distance of the said hinge of said second switch distance; Said detection time delay module is used for the opening through the said revolving door body of the state-detection of said second switch, and detect that said revolving door body is in opening and the Preset Time of delaying time after export second start signal;
Alarm; And
Control module; Said control module all links to each other with the detection time delay module with said detection module, and said control module is used for after second start signal of first start signal that detects said detection module output and the output of said detection time delay module, starting said alarm.
2. refrigerator as claimed in claim 1 is characterized in that, said detection module further comprises:
First ac input end and second ac input end;
One end of said first switch links to each other with said first ac input end; And
Rectification step-down submodule; The first input end of said rectification step-down submodule links to each other with the other end of said first switch; Second input of said rectification step-down submodule links to each other with said second ac input end, is used for alternating voltage to input and carries out the rectification step-down forming DC voltage, and be said detection time delay module, said alarm and control module power supply through said DC voltage; Wherein, said DC voltage is said first start signal.
3. refrigerator as claimed in claim 2 is characterized in that, said detection time delay module further comprises:
Said second switch, an end of said second switch links to each other with said rectification step-down module;
Electric capacity, an end of said electric capacity links to each other with the other end of said second switch, the other end ground connection of said electric capacity, the DC voltage that said electric capacity is used for when said second switch is closed, exporting according to said rectification step-down module charges;
The driven element module, said driven element module links to each other with said electric capacity, is used for when said electric capacity charging voltage reaches preset value, exporting said second start signal.
4. refrigerator as claimed in claim 3 is characterized in that, said second switch is a tongue tube.
5. refrigerator as claimed in claim 3 is characterized in that, said electric capacity is electrochemical capacitor.
6. refrigerator as claimed in claim 5 is characterized in that, adjusts the said Preset Time of said detection time delay module through the capacitance of adjusting said electrochemical capacitor.
7. refrigerator as claimed in claim 3 is characterized in that, said control module further comprises:
With the judgement submodule, be used for after receiving said first start signal and second start signal, exporting high level signal to drive said alarm.
8. refrigerator as claimed in claim 7 is characterized in that, said alarm is buzzer and/or alarm lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110406481 CN102401544B (en) | 2011-12-08 | 2011-12-08 | Refrigerator with door opening delay alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110406481 CN102401544B (en) | 2011-12-08 | 2011-12-08 | Refrigerator with door opening delay alarm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102401544A true CN102401544A (en) | 2012-04-04 |
| CN102401544B CN102401544B (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110406481 Active CN102401544B (en) | 2011-12-08 | 2011-12-08 | Refrigerator with door opening delay alarm |
Country Status (1)
| Country | Link |
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| CN (1) | CN102401544B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500943A (en) * | 2013-10-13 | 2014-01-08 | 昆山顺康达工业产品设计有限公司 | Distribution box capable of automatically lighting |
| CN103913028A (en) * | 2013-01-02 | 2014-07-09 | Lg电子株式会社 | Home appliance |
| CN108961699A (en) * | 2018-07-26 | 2018-12-07 | 刘荣果 | A kind of monitoring device and monitoring system |
| CN111306878A (en) * | 2020-02-13 | 2020-06-19 | 海信容声(广东)冰箱有限公司 | Refrigerator and control method thereof |
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| KR20080035098A (en) * | 2006-10-18 | 2008-04-23 | 엘지전자 주식회사 | Refrigerator and remote controller beibg capable of ir communication |
| CN201477720U (en) * | 2009-07-29 | 2010-05-19 | 合肥美的荣事达电冰箱有限公司 | Warning device capable of warning in case of refrigerator door not being tightly closed |
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| CN2119620U (en) * | 1992-01-14 | 1992-10-21 | 常州市华新电器研究所 | Automatic alarm for closing door of refrigerator |
| CN2141066Y (en) * | 1992-11-21 | 1993-08-25 | 潍坊电子注塑总厂 | Control switch for refrigerator and refrigerating cabinet |
| US5479152A (en) * | 1994-09-19 | 1995-12-26 | Walker; Bruce R. | Portable refrigeration door open alarm apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913028A (en) * | 2013-01-02 | 2014-07-09 | Lg电子株式会社 | Home appliance |
| US10058177B2 (en) | 2013-01-02 | 2018-08-28 | Lg Electronics Inc. | Home appliance |
| CN103500943A (en) * | 2013-10-13 | 2014-01-08 | 昆山顺康达工业产品设计有限公司 | Distribution box capable of automatically lighting |
| CN108961699A (en) * | 2018-07-26 | 2018-12-07 | 刘荣果 | A kind of monitoring device and monitoring system |
| CN111306878A (en) * | 2020-02-13 | 2020-06-19 | 海信容声(广东)冰箱有限公司 | Refrigerator and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102401544B (en) | 2013-04-17 |
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Owner name: HEFEI MIDEA REFRIGERATOR CO., LTD. Free format text: FORMER NAME: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee after: Hefei Midea Refrigerator Co., Ltd. Patentee after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee before: Hefei Media Rongshida Refrigerator Co., Ltd. Patentee before: Hefei Hualing Co., Ltd. |