CN103945729A - Method for measuring the efficiency of a hairdryer - Google Patents
Method for measuring the efficiency of a hairdryer Download PDFInfo
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- CN103945729A CN103945729A CN201280056383.3A CN201280056383A CN103945729A CN 103945729 A CN103945729 A CN 103945729A CN 201280056383 A CN201280056383 A CN 201280056383A CN 103945729 A CN103945729 A CN 103945729A
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- hair
- dryer
- plates
- dried
- measuring method
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D20/00—Hair drying devices; Accessories therefor
- A45D20/04—Hot-air producers
- A45D20/08—Hot-air producers heated electrically
- A45D20/10—Hand-held drying devices, e.g. air douches
- A45D20/12—Details thereof or accessories therefor, e.g. nozzles, stands
Abstract
The invention concerns a method for measuring the drying efficiency of a hairdryer (SC), method implementing a drying frame (100) comprising a vertical web (104) of fibers to be dried, attached at least by the upper ends thereof to a support and comprising at least: a first step of measuring the evaporation of the water contained in the web (104) of the drying frame (100), a front face of the web (104) being subject, for a reference drying time, to the flow of air from the hairdryer whereof the outlet (4) is located at a reference distance (Dd) from the front face of the web (104) and which operates at a reference power, the rear face of the web (104) being located at least 1 meter away from the nearest surface, a second step of measuring the evaporation of the water contained in the web (104) of the drying frame (100), the front face of the web (104) being subject, for a reference drying time, to the flow of air from the hairdryer whereof the outlet (4) is located at the reference distance from the front face (Fa) of the frame (100) and which operates at the reference power, the rear face (Fb) of the web (104) being in substantially tangential contact with a solid (108) of spherical or ovoid shape.
Description
Technical field
The present invention relates to the technical field of hair-dryer, and relate more specifically to the hand-held Electric blower being used by professional person and/or special people.
Background technology
Hand-held hair-dryer generally includes the tubular body of lengthening, and described tubular body comprises the electric blower group being formed by screw, and the driving shaft of described screw and motor is connected as a single entity.Described motor remains in tubular body by rigid arm, and described rigid arm is guaranteed the centering of inwall of the relative tubular body of screw.Conventionally, tubular body is equipped with handle, and described handle comprises cable, and described cable connects the job control parts of electrical network and motor.At the duration of work of hair-dryer, electric blower group is by being positioned at the entrance air amount at rear portion of tubular body, to push air by the outlet above that is positioned at tubular body.Hair-dryer also comprises the electric heating mechanism for heating the air being blowed in the downstream of screw.
This hair-dryer is gratifying in the first function that relates to the hair-dryer of drying hair.But the shortcoming that known hair-dryer has is that noise is large especially, this continues to make it feel tired while using hair-dryer professional person, or user and its people are around brought to harm.
Therefore, obviously need a kind of novel hair-dryer, this hair-dryer has heating properties, and has and the air mass flow similar according to the air mass flow of the hair-dryer of prior art, brings less noise nuisance simultaneously.
This noise nuisance is especially produced by the rotary speed of motor, and the rotary speed of described motor is conventionally between 7000 revs/min and 16000 revs/min.The approach of restriction noise nuisance be the to slow down rotary speed of motor.But, if rotary speed is slowed down, in order to maintain gratifying air mass flow, need to increase the diameter of screw.But, the increase of the diameter of this screw has changed the size of hair-dryer, if hair-dryer has the common structure of the pistol type with the handle extending perpendicular to the blowing axis of hair-dryer, so the size of hair-dryer seem be difficult to operation.In addition, the increase of the diameter of screw causes the increase of the overall diameter of the main body of hair-dryer, can not only catch the main body of this hair-dryer during implementing haircut with a hand.
Therefore, obviously need a kind of novel hair-dryer, the structure of the pneumatic circulating of this hair-dryer especially allows to consider and the holding mode different according to the holding mode of the hair-dryer of prior art, and/or allow to obtain certain compactedness with gratifying pneumatic and sound performance, even it is pneumatic and sound Performance Ratio is better according to the pneumatic and sound performance of the hair-dryer of prior art.
In development equipment, the applicant checks described hair-dryer not lose drying efficiency.For this reason, applicant particularly uses the measuring method of the efficiency of the hair-dryer being specified by standard MDEH03A019.For the purpose of reminding, this measurement is determined oven dry rate according to the code accurate and that repeat that uses cloth ISO2267: hair-dryer is placed in the flat surperficial opposite being made up of the fabric wetting.By the framework of the fabric with initial infiltration being weighed and to thering is the weighing of the framework that is exposed to the fabric after the hair-dryer of working in the given time, measuring the oven dry index that fabric is dried by hair-dryer.
Summary of the invention
If it is completely clear, accurate and reproducible that applicant has proved this standard, but this standard can not be reproduced specialty or the used in everyday full-scale condition of individual user to hair-dryer.From this viewpoint, this standard is completely improvable.The realization of the measurement code of the efficiency of new measurement hair-dryer becomes independently object concerning inventor, and becomes the application's object.
One in target object is to provide a kind of measuring method, and this measuring method is in the scope of private code, but this measuring method can be qualified as standard.
Starting point of the present invention relates to hair-dryer, described hair-dryer comprises tubular body and the electric blower group with longitudinal axis Δ, described tubular body is in front end, be open in exit, and described tubular body comprises general periphery air intake near the rearward end relative with described outlet, described electric blower group is arranged in described tubular body, between described entrance and described outlet, and comprise motor, described motor is along axis drives rotor parallel with longitudinal axis Δ or that overlap, described rotor is arranged in operating room and is adapted to pass through described entrance air amount and pushes air by described outlet.Described hair-dryer: comprise the central cores with longitudinal axis Δ at the rear portion of described tubular body, described central cores comprises periphery surface, described periphery surface is recessed and assembles to described operating room, and periphery surface defines described air intake and annular aspirating air pipe together with described tubular body; In described aspirating air pipe, can comprise that at least one has the annular curved blade of longitudinal axis Δ, the bottom surface of described blade and arch face are assembled to described operating room.The enforcement with the central cores of periphery surface recessed and that assemble allows to limit bending aspirating air pipe, described pipeline is proofreaied and correct air stream, in this case, air stream is roughly parallel to longitudinal axis Δ in exit, but air stream forms the angle of non-zero at porch and longitudinal axis Δ.In addition, the enforcement of annular blade allows the movement of the stratiform that obtains institute's air amount in aspirating air pipe, and this contributes to improve at the load loss of the upstream of operating room by minimizing the performance of hair-dryer.In addition, the enforcement of the central cores being connected with ambient air entrance allow to discharge hair-dryer after, this can be utilized for placing and grip or fixed mechanism.Similarly, do not interfere locating below of hair-dryer in the suction of air, below hair-dryer being fixed on the wall of close wall that can be by hair-dryer, and do not damage the danger of the performance of hair-dryer.
In order to achieve the above object, the present invention relates to a kind of measuring method of the drying efficiency of measuring hair-dryer, described method is used framework to be dried, described framework to be dried comprises the vertical plates of fiber to be dried, described fiber at least thereon end place is fixed on support, and described method at least comprises:
-measure the first step that is included in the evaporation of water in the plates of described framework to be dried, during benchmark drying time, before described plates, bear the air-flow from described hair-dryer, the described outlet of described hair-dryer and the previous space reference range of described plates and locate, and described hair-dryer is with reference power work, described plates below away from least 1 meter, hithermost surface
-measure the second step that is included in the evaporation of water in the plates of described framework to be dried, during described benchmark drying time, before described plates, bear the air-flow from described hair-dryer, reference range described in the described outlet of described hair-dryer and the previous space of described framework and locating, and described hair-dryer is with reference power work, described plates below with the solid object general tangential of spherical or elliptical shape contact.
This code is arranged for the efficiency of measuring aforementioned hair-dryer.But because relate to the comparative test of being expected by consumer, applicant notes developing measuring method, determine that the method hair-dryer described herein, is also suitable for most of hair-dryer except being suitable for simultaneously.
The enforcement of these two measuring process allows to illustrate well the performance of the hair-dryer in the condition close with the condition of the normal use of hair-dryer.In fact, first step allow simulation head downwards, the oven dry of hair and the scalp long hair relatively sagging earthward in the situation that.But second step allows the simulation long hair upwards, under hair abutment head skin tag in the situation that or oven dry of medium-length hair at head.In the framework of this second step, the impact of the solid object dummy head of ellipse or spherical form on the air-flow being blown out by hair-dryer.
The object of the described solid object using in second step is dummy head, and the diameter of this solid object is selected as preferred about 20cm.The oval-shaped solid object using in second step can be the ball of spherical or elliptical shape, or is the false head that there is no hair.
According to the present invention, plates to be dried can be variety classes.Therefore, plates to be dried can be weaving plates or line freely arranged side by side or the set of wire harness of fabric, braiding.The plates that can weave can be only thereon edge place be fixed, or on its at least two limits, be fixed on the contrary.The constituent material of the line of plates can be natural or synthetic.
The method according to this invention preferred embodiment in, plates to be dried comprise people's hair.The use of people's hair allows to obtain the evaluation of the performance of the hair-dryer in the condition that approaches very much actual conditions in laboratory.
According to this preferred modified example preferred embodiment, plates to be dried comprise that is sent out a tuft, and described one group to send out tuft be arranged side by side and only fix sending out the upper end of tuft.Apparently, this embodiment allows the state that phantom bead is sent out more realistically again.
According to the feature of this preferred modified example, the quality that every bundle is sent out tuft is less than 10g.The size of this tuft allow near by hand in long hair or medium-length hair by time size and the thickness of the sending out tuft that form.
According to the feature of this preferred modified example, every bundle is sent out the quality of tuft between 3g and 6g.The size of this tuft allow better near by hand in long hair or medium-length hair by time size and the thickness of the sending out tuft that form.
According to another feature of the present invention, the height of described plates to be dried is more than or equal to 200mm.This hair lengths allows to simulate well even long hair of medium-length hair.
According to another feature of the present invention, the surface of described plates to be dried is greater than the cross section of the outlet of described hair-dryer.This feature allows the oven dry of the hair of considering adult.
According to the modified example of this feature, the surface of described plates to be dried is greater than 1.5 times of cross section of the outlet of described hair-dryer, is preferably more than 1.9 times of cross section of the outlet of described hair-dryer.This ratio also allows the drying condition of the hair that more approaches adult.
According to feature of the present invention, during at least one measuring process in described measuring process, being movable relative to each other according to scanning motion above of described outlet and described plates to be dried.This mode of carrying out allows to simulate the routine use of hair-dryer, and between this operating period, the thermal current of hair-dryer moves, to avoid scalding the people's that hair dried even scalp of hair.
Various motions can be considered, for example hair-dryer around be parallel to described plates to be dried above vertically or the reciprocating rotation of horizontal axis.According to modified example of the present invention, described scanning motion is along the reciprocal translational motion of horizontal or vertical direction above that is parallel to described plates to be dried.
According to another modified example of the present invention, described scanning motion is that described axis is different from the axis that blows of described hair-dryer around the rotatablely moving of the axis above perpendicular to described plates to be dried.
According to feature of the present invention, test distance be selected as making the centre of the air-flow from hair-dryer, and the measured temperature of the outlet interval test distance of described hair-dryer there is the value between 60 DEG C and 76 DEG C.This feature is corresponding to conventionally implementing the distance for avoiding scalding hair or scalp.
According to feature of the present invention, described framework to be dried is located the wire netting or the gauze that comprise that at least one has open mesh after it, described wire netting or the motion backward of the described plates to be dried of gauze restriction.
According to another feature of the present invention, the mass ratio of the plates described to be dried after the measurement of described evaporation adopts the quality of the plates described to be dried before applying air-flow and apply air-flow during described drying time.
According to another feature of described method, for the better use of simulation hair-dryer, during at least one baking step in described baking step, the outlet of described hair-dryer and described plates to be dried above between change of distance.
According to the feature of described measuring method, the cross section of the surface of described plates to be dried and the outlet of described hair-dryer is proportional.
Certainly, the mode of different characteristic of the present invention, enforcement and application and modification can be bonded to each other according to various combinations in compatible or non-exclusive situation each other at them.
Brief description of the drawings
In addition, by the following detailed description of carrying out with reference to accompanying drawing, will understand various other feature of the present invention, described accompanying drawing shows the embodiment of the assessment method of the embodiment of hair-dryer and the drying performance of this hair-dryer.
-Fig. 1 is the schematic perspective view of hair-dryer, and the outlet of this hair-dryer is equipped with oven dry mouth.
-Fig. 2 is the schematic perspective view dissecing along the axial plane of not drying the hair-dryer shown in Fig. 1 of mouth.
-Fig. 3 and 4 is schematic perspective views that another embodiment of hair-dryer is shown, this hair-dryer comprises movable holding mechanism.
-Fig. 5 is the schematic perspective view that framework to be dried is shown, this framework uses in the scope of method for the drying efficiency of measuring hair-dryer according to the present invention.
-Fig. 6 is the schematic perspective view that the formation support of the framework shown in Fig. 5 is shown.
-Fig. 7 and 8 illustrates according to of the present invention for measuring the schematic diagram of two different steps of method of drying efficiency of hair-dryer.
Detailed description of the invention
As shown in Figure 1 and the hair-dryer that represented by label 1 of entirety comprise roughly rotational symmetric tubular body 2 of axis Δ along the longitudinal, comprise in addition the holding mechanism that is positioned at rear portion 3 that next will describe.Tubular body 2 can be formed by multiple parts, and for example realizes with the form of two half shells being made of plastics, and described two half shells are assembled along axial plane, and by by the element of setting-in by completion, described element relates in particular to holding mechanism 3.
As shown in Figure 2, tubular body 2 comprises the end 4 for the opening of delivery air in front portion.Outlet 4 has the shape of circular, and air outlet slit 4 also can have oval-shaped shape or rectangular shape certainly.According to the example shown in Fig. 1, outlet 4 is equipped with unshowned dismountable mouth 5 in Fig. 2, and this mouth allows to give air stream ellipse or rectangular shape.Tubular body 2 also comprises ambient air entrance 7 near the rearward end 6 relative with outlet 4, and this entrance extends on the whole profile of main body 2.
In order to ensure passing through outlet 4 blow air, hair-dryer 1 comprises electric blower group 10, and this electric blower group is arranged in tubular body 2, between entrance 7 and outlet 4.Electric blower group 10 comprises rotor 11, and this rotor is arranged in operating room 12, and operating room is connected with air intake 7 by aspirating air pipe 13 on the one hand, is connected on the other hand by blowing pipeline 14 with air outlet slit 4.Rotor 11 is connected as a single entity with the driving shaft 15 of motor 16, and the rotation of motor is coaxial with the longitudinal axis Δ of tubular body 2.
According to example, rotor 11 is formed by the screw of helical blower, this screw along the direction parallel with longitudinal axis Δ by air intake and blowing out.
Therefore, aspirating air pipe 13 is proofreaied and correct sucked air stream, to start to give axial direction to air stream before arriving operating room 12 from the roughly direction radially of entrance 7.For this reason, hair-dryer 1 comprises central cores 20 at the rear portion of tubular body 2, and this central cores comprises periphery surface 21, and this periphery surface is recessed and assembles to operating room 12.Central cores 20 has around roughly rotational symmetric shape of axis Δ, and according to example, and periphery surface 21 is corresponding to the surperficial part of anchor ring with axis Δ.Therefore, central cores 20 is by its periphery surface 21 and contribute to give the shape of aspirating air pipe 13 annulars by tubular body 2.According to example, core 20 is hollow and in part, motor 16 is housed in the central.
In order to give the air being drawn in aspirating air pipe 13 flowing of stratiform as far as possible, hair-dryer comprises at least one and comprises two annular curved blades 22 and 23 according to example.It is recessed and towards the bottom surface 24 of tubular body 2 that each camber blades 22 and 23 comprise on the one hand, comprises on the other hand protruding and towards the arch face 25 of core 20.Bottom surface 24 and the arch face 25 of each blade are assembled to operating room 12.Bending blade 22 keep at a distance each other with 23 and by four radially pad 26 be connected with core 20 and tubular body 2, only wherein described in three, radially pad is shown in Figure 1.
It should be noted, the enforcement of camber blades 22 and 23 allows in the case of the structure of identical periphery surface and rotary speed with respect to not having vaned structure to increase 30% efficiency.
In order to contribute to guide well air, the upstream portion 30 of the periphery surface 21 of central cores 20, is close to the part of periphery surface 21 of air intake 7 preferably with tangent perpendicular to the plane of axis Δ.Similarly, the downstream part of periphery surface 21, the part of periphery surface 21 that is close to operating room 12 is tangent with the rotating cylindrical body with axis Δ.Similarly always, the bottom surface of each blade and the upstream portion of arch face 32 are tangent with the rotational circle cone with axis Δ, and this cone is assembled to operating room 12 and the apex angle α of cone is obtuse angle.The bottom surface of each blade and the downstream part of arch face 33 are tangent with the rotating cylindrical body C with axis Δ.
According to example and always in order to optimize flowing of sucked air, contribute to the periphery edge 35 of the tubular body 2 that limits air intake 7 also to outer bend, the inner face that makes periphery edge is protruding and is roughly parallel to the bottom surface of the blade 23 on opposite.
Hair-dryer 1 also comprises the electric heating mechanism 36 of the blow air for heating in the downstream of electric blower group 10.Heating arrangements 36 is arranged in and blows chamber 14 and can be realized by any suitable mode, for example, realize with the form of heating resistor, and this heating resistor keeps by the radial blade of being made up of the heat-barrier material of for example mica sheet.
The structure with the hair-dryer of central cores 20 and bending blade allows to proofread and correct from general radial direction and starts the air sucking, to give roughly axial direction by sucked air, this structure is suitable for realizing the hair-dryer of large diameter compactness particularly.Compact hair-dryer should be understood to that the Δ measured length L between outlet 4 and the rearward end 6 of core that parallels to the axis of this hair-dryer is less than or equal to 1.5 times of largest outer diameter D of tubular body, and is preferably substantially equal to this diameter D.Large diameter hair-dryer should be understood to that the minimum dimension d in the cross section of the outlet of hair-dryer is more than or equal to 80mm.In the case of outlet cross section be circular, the diameter d in this cross section is more than or equal to 80mm.The largest outer diameter D of large diameter hair-dryer for example can be between 100mm and 250mm.
Within the scope of the invention, can realize maximum dimension D and length L and equal or be substantially equal to the hair-dryer of 120mm.Having diameter is that the turbine of 113mm and this hair-dryer with the rotary speed of approximately 4500 revs/min allow to obtain 120m
3the flow of/h, simultaneously the relatively traditional hair-dryer of noise level has reduced 15dBA (from 80dBA to 65dBA), and described traditional hair-dryer has the rotary speed of the maximum gauge of about 85mm and approximately 7500 revs/min, for obtaining about 70m
3the flow of/h.
The structure of hair-dryer, the especially existence of its compact feature and central cores 20 allow to consider the new embodiment of holding mechanism 3.In fact, in the case of not bearing any pneumatic function below of core 20, can being closed by back 40 below of core 20, this back is positioned at outlet 4 opposites and has flat or protruding shape, and this region can be utilized for holding mechanism 3 is set thereon.
According to the example of Fig. 1 and 2, holding mechanism 3 comprises the palm stayed surface P being formed by protruding back 40 on the one hand.Palm stayed surface P is used at least a portion of the palmar aspect of user's hand to provide support.Holding mechanism 3 comprises the abutment surface 41 being formed by the inner face of the arcuation part 42 being connected as a single entity with protruding back 40 on the other hand.Abutment surface 41 is used to against the part of the back of the hand of hand, and the palmar aspect of hand is placed on protruding back 40.
The holding mechanism 3 so forming allows the new handset kind of hair-dryer.In fact, hair-dryer can be inserted between arcuation part 42 and back 40 roughly open hold, be trapped among situation on handle with hand, for example, for compared with the situation of the hair-dryer of the pistol type of prior art, this permission is hand-held more easily.
According to the example shown in Fig. 1 and 2, holding mechanism 3 has the fixed position on the opposite that is positioned at outlet 4.But another kind of structure can be considered for the holding mechanism of hair-dryer.
Therefore, Fig. 3 and 4 illustrates an embodiment of the invention, according to this embodiment, holding mechanism 3 is movable between the second place B shown in the primary importance A shown in Fig. 3 and Fig. 4, in primary importance A, palm stayed surface P is positioned at the opposite of outlet 4, and in second place B, palm stayed surface P is positioned on the side of tubular body 2.
According to this embodiment, holding mechanism 3 comprises pallet 50, forms palm stayed surface P above this pallet.Pallet 50 is fixed on tubular body 2 by two arms 51, and only a described arm is shown in Fig. 3 and 4.Each arm 51 comprises first end and the second end on the opposite of pallet, described first end is connected with pallet 50 rigidly, described the second end is connected with tubular body 2 by the connection pivot with axis Ω, and described axis Ω is perpendicular to the longitudinal axis Δ of tubular body 2.Therefore, pallet 50 rotates and activity according to 90 ° between primary importance A and second place B.Hair-dryer can comprise the locking mechanism of the rotation of arm 51, to pallet 50 is fixed in a position in these two position A or B.
Holding mechanism 3 also comprises arcuation part 52, and this arcuation part and pallet 50 are connected as a single entity and common restriceted envelope 53 passes through for a part for user's hand.The inner face of arcuation part 52 forms abutment surface, and as described above, this abutment surface is for the back of the hand of the hand against user.
It should be noted, according to the example of Fig. 3 and 4, the longitudinal axis of arcuation part 52 is roughly parallel to the rotation Ω of pallet 50.But when pallet 50 is along tubular body 2 during at its second place B, in order to facilitate the gripping of hair-dryer, the longitudinal axis of arcuation part 52 can be set to perpendicular to rotation Ω.Therefore,, in the time that pallet 50 is in its second place B, the longitudinal axis of arcuation part 52 is parallel to the longitudinal axis of tubular body to Δ.
The described hair-dryer 1 so forming is with equal drying performance work, simultaneously with compared with the hair-dryer of prior art, send noise still less.In order to benefit from the targeted contrast basis (base de comparaison objective) of the drying performance that hair-dryer is described, the invention provides a kind of method of measuring drying efficiency, the method allows to reproduce as far as possible unchangeably two kinds of daily occupation modes,, the long hair of head when downward-sloping above or the oven dry of medium-length hair, and on the other hand, along the oven dry of level or the hair that hangs down of head raised.Fig. 7 and 8 illustrates hair-dryer as above in non-limiting mode: described method, applicable to any large diameter hair-dryer, is also applicable to the hair-dryer of any for example pistol form.
First, the present invention advises using the framework to be dried 100 shown in Fig. 5, and the function of framework to be dried is the characteristic of simulation hair.Framework 100 to be dried comprises support 101, described support limits a kind of rectangular frame, described frame comprises base 102 at lower beam place, and described base allows framework to be dried 100 to be placed on smooth surface, so that described support 101 has roughly vertical orientation.According to the example of Fig. 6, framework 100 to be dried limits rectangle window 103, and the height H of this rectangle window 103 is more than or equal to 200mm and length L is more than or equal to 270mm's.Described window 103 is at least in part by vertical plates (nappe) 104 sealings of fiber to be dried, the topknot of this plates simulation hair.Plates 104 at least thereon edge place are fixed on the horizontal upper boom 105 of support 101.Plates 104 can be fixed at the one or more limit place in other three limits, but preferably, plates 104 only thereon edge place be fixed, to give certain wave and freedom of motion of plates under airflow function, as the situation of hair.
According to example, described plates 104 comprise the natural hair that is divided into 21 bundles and sends out tuft 106, and every a branch of length is 200mm.Every bundle of hair strands 106 has and is less than 10g and the quality between 3g and 6g preferably, and this quality is measured in the environment with approximately 50% ± 5% humidity.The fixing point of every bundle of hair strands 106 on upper boom 105 is equidistant, and according to the distance interval of approximately tens millimeters, and the roughly continuous length that makes plates 104 limit hair is the wide wall for 200mm of 200mm.
The framework to be dried 100 so forming is used at least two measurements are included in the step of the evaporation of water in plates 104, and this evaporation is to carry out under the effect of the air-flow of hair-dryer SC to be evaluated.
These measuring process are preferably implemented in roughly similar experimental condition, that is, environment temperature is between 20 DEG C and 35 DEG C, and ambient humidity is about 50% ± 5% simultaneously.
The first measuring process is intended to determine the drying performance of hair-dryer SC in the layout shown in Fig. 7, the oven dry of the hair of this layout dummy head down time.
First, use the predetermined amount of water that is called test water yield Qe, the water of for example about 15g ± 5g is wetting equably by hair plates 104.Then, framework 100 to be dried is placed on the weighing device such as scale 110, the have an appointment accuracy of 1/10th grams of this weighing-appliance.
Be intended to layout that the hair of dummy head down time dry at this first step,, when the direction of the air-flow with respect to from hair-dryer without any obstacle be positioned at hair below time, framework 100 to be dried is set to be less than 1m and be preferably less than the distance of 2m without any Fb interval after obstacle or surface and plates 104.
During described the first measuring process, the Fa above of plates 104 bears the air-flow of hair-dryer SC, and the outlet 4 of hair-dryer is not equipped with any accessory, and hair-dryer is adjusted to reference power, and this reference power is for example corresponding to its rated power.
The longitudinal axis Δ corresponding to air-flow center that hair-dryer SC is set to hair-dryer is centered and is vertical with before this with respect to the Fa above of plates 104.
In addition, the outlet 4 of hair-dryer and the previous space test distance of plates 104 or reference range Dd and settle, described distance is vertically measured with described Fa above, and described distance to be selected as making the temperature of the measured air-flow center of on axis Δ spacing distance Dd be 75 DEG C.Certainly, distance B d can be selected as making the interval measured temperature of this distance on axis Δ to be different from 75 DEG C, and for example between 40 DEG C and 76 DEG C.
Before starting hair-dryer SC, quality or the weight of the water existing are measured to M1 for the first time in plates 104.
Then, at the trial between during De, the hair-dryer SC being placed in aforesaid and layout is as shown in Figure 7 started, described test period De has and is about the value of a few minutes and is for example selected as equaling one minute.When De finishes at the trial, quality or the weight of the water existing are measured to M2 for the second time in plates 104.
Described M1 and the M2 of measuring for twice used for according to formula
determine the first oven dry index ls
1, described oven dry index by gram/(g.min per minute
-1) represent.
Arrange for catotropic oven dry, described the first measuring process can be repeatedly, and for example three times, to obtain the first average index ls of drying
1.
Described the second measuring process is intended to determine the drying performance of hair-dryer in the layout shown in Fig. 8, the oven dry of hair when this layout dummy head lifts, the subcutaneous vertical hair of abutment head oven dry.
Therefore, the layout of the oven dry for dummy head upward time and the difference of the layout shown in Fig. 7 are that the solid object 108 of ellipse or spherical form contacts arrangement with Fb below, simultaneously described solid object and general tangential below.Described solid object 108 can be realized by any suitable mode, and in the situation that its target is phantom bead portion, solid object can be formed by artificial head, and settle against plates 104 at the rear portion of artificial head, as shown in Figure 8.
As first step, in the beginning of second step, plates 104 infiltrate test water yield Qe, then, measure for the first time M1.It should be noted, during this measurement, solid object 108 does not contact with plates 104, so that interferometry not.
Then, described solid object 108 is placed in aforesaid and layout as shown in Figure 8.Hair-dryer SC is started for test period De.After hair-dryer SC stops, measuring for the second time M2.As measured for the first time M1, solid object 108 is in advance away from plates 104, so that interferometry not.
Described measurement M1 and M2 are used for drying index ls according to calculating second with identical formula above
2, this index is arranged corresponding to oven dry head-up, as catotropic oven dry index ls
1, the second measuring process can be repeatedly, and for example three times, to obtain the average oven dry index ls of head upwards time
2.
Described measuring process provide use that different hair-dryers implement upside down time oven dry index ls
1oven dry index ls head-up time
2, described measuring process permits the performance of these hair-dryers to carry out objective comparison.In addition, dry index ls for described two
1and ls
2consider well conventional layout of difference of the use of hair-dryer.
In aforementioned measuring process, hair-dryer SC is relative, and plates 104 are fixed.But, can consider to get involved the movement of hair-dryer SC, and especially the axis Δ of hair-dryer with respect to the movement of plates 104, for simulating the scanning motion to hair, to avoid scalding hair.
Therefore, hair-dryer can carry out as shown in arrow F1 around the oscillating motion of horizontal axis that is parallel to hair plates.Hair-dryer also can carry out as shown in arrow F2 around the oscillating motion of vertical axis that is parallel to hair plates 104.Hair-dryer also can carry out as shown in arrow F3 along the translational motion of vertical direction that is parallel to plates 104, or as shown in arrow F4 along the translational motion of horizontal direction that is parallel to plates 104.
Certainly, the scanning motion of hair-dryer SC can be motion F1 all or part, F2, the combination of F3 and F4.
According to previous embodiment, the surface of plates 104 is identical to all tested hair-dryers.The surface of plates 104 is selected as being greater than peaked 1.5 times of outlet of tested hair-dryer, and is preferably more than 1.9 times of this maximums.
But according to the present invention, the surface of plates 104 can be proportional with the cross section of the outlet of each hair-dryer to be tested.Proportionality coefficient can be between 1.5 and 1.9.
According to the embodiment of framework to be dried 100, plates 104 can freely wave through window 103.According to the enforcement modified example of framework to be dried 100, use for limiting gauze or the wire netting 130 that plates 104 move backward.The size of the mesh of described gauze or wire netting 130 is selected as enough large to do not disturb flowing from the air-flow of hair-dryer SC.
Certainly, within the scope of the appended claims, can carry out various other improvement to measuring method according to the present invention.The different step that those skilled in the art can juxtaposition stated is here to adjust measuring process.
Claims (16)
1. the measuring method of the drying efficiency of a measurement hair-dryer (SC), described method is used framework to be dried (100), described framework to be dried comprises the vertical plates (104) of fiber to be dried, described fiber is at least fixed on support in the upper end of described fiber, and described method at least comprises:
-measure the first step that is included in the evaporation of water in the plates (104) of described framework to be dried (100), during benchmark drying time, before described plates (104), bear the air-flow from described hair-dryer, the outlet (4) of described hair-dryer is located with the previous space reference range (Dd) of described plates (104), and described hair-dryer is with reference power work, described plates (104) below away from least 1 meter, hithermost surface;
-measure the second step that is included in the evaporation of water in the plates (104) of described framework to be dried (100), during described benchmark drying time, before described plates (104), bear the air-flow from described hair-dryer, reference range (Dd) and locating described in (Fa) interval before the described outlet (4) of described hair-dryer and described framework (100), and described hair-dryer is with reference power work, after described plates (104), contact to solid object (108) general tangential of (Fb) and spherical or elliptical shape.
2. measuring method according to claim 1, is characterized in that, described plates to be dried (104) comprise people's hair.
3. measuring method according to claim 2, is characterized in that, described plates to be dried (104) comprise that is sent out a tuft (106), and described one group to send out tuft be arranged side by side and only fix in the upper end of described tuft.
4. measuring method according to claim 3, is characterized in that, the quality that every bundle is sent out tuft (106) is less than 10g.
5. measuring method according to claim 4, is characterized in that, every bundle is sent out the quality of tuft (106) between 3g and 6g.
6. according to the measuring method described in any one in claim 1 to 5, it is characterized in that, the height of described plates to be dried (104) is more than or equal to 200mm.
7. according to the measuring method described in any one in claim 1 to 6, it is characterized in that, the surface of described plates to be dried (104) is greater than the cross section of the outlet (4) of described hair-dryer.
8. according to the measuring method described in any one in claim 1 to 7, it is characterized in that, the surface of described plates to be dried (104) is greater than 1.5 times of cross section of the outlet (4) of described hair-dryer, is preferably more than 1.9 times of cross section of the outlet (4) of described hair-dryer.
9. according to the measuring method described in any one in claim 1 to 7, it is characterized in that, during at least one measuring process in described measuring process, being movable relative to each other according to scanning motion above of described outlet and described plates to be dried (104).
10. measuring method according to claim 9, is characterized in that, described scanning motion is along the reciprocal translational motion of horizontal or vertical direction above that is parallel to described plates to be dried (104).
11. measuring methods according to claim 9, it is characterized in that, described scanning motion is around the rotatablely moving of the axis above perpendicular to described plates to be dried (104), and what described axis was different from described hair-dryer (SC) blows axis (Δ).
12. according to the measuring method described in any one in claim 1 to 11, it is characterized in that, described reference range (Dd) be selected as making the centre of the air-flow from described hair-dryer (SC), and the measured temperature of outlet (4) the interval test distance of described hair-dryer there is the value between 60 DEG C and 76 DEG C.
13. according to the measuring method described in any one in claim 1 to 12, it is characterized in that, described framework to be dried is located the wire netting or the gauze (130) that comprise that at least one has open mesh after it, described wire netting or the gauze described plates to be dried of restriction (104) motion backward.
14. according to the measuring method described in any one in claim 1 to 13, it is characterized in that the mass ratio of the plates (104) described to be dried after the measurement of described evaporation adopts the quality of the plates (104) described to be dried before applying air-flow and apply air-flow during described drying time.
15. according to the measuring method described in any one in claim 1 to 14, it is characterized in that, during at least one baking step in described baking step, the outlet (4) of described hair-dryer (SC) and described plates to be dried (104) above between change of distance.
16. according to the measuring method described in any one in claim 1 to 15, it is characterized in that, the cross section of the outlet (4) of the surface of described plates to be dried (104) and described hair-dryer is proportional.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1160563A FR2982947B1 (en) | 2011-11-18 | 2011-11-18 | METHOD FOR MEASURING THE EFFICIENCY OF A HAIRDRYER |
| FR1160563 | 2011-11-18 | ||
| PCT/FR2012/052626 WO2013072624A1 (en) | 2011-11-18 | 2012-11-14 | Method for measuring the efficiency of a hairdryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103945729A true CN103945729A (en) | 2014-07-23 |
| CN103945729B CN103945729B (en) | 2016-07-13 |
Family
ID=47291140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280056383.3A Expired - Fee Related CN103945729B (en) | 2011-11-18 | 2012-11-14 | The method measuring the efficiency of hair-dryer |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2779862B1 (en) |
| CN (1) | CN103945729B (en) |
| FR (1) | FR2982947B1 (en) |
| WO (1) | WO2013072624A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB801286A (en) * | 1955-06-14 | 1958-09-10 | Josef Vatter | Apparatus for measuring the dryness of hair |
| US4260875A (en) * | 1978-06-19 | 1981-04-07 | Clairol Incorporated | Controlled temperature hair dryer |
| WO1994019982A1 (en) * | 1993-03-02 | 1994-09-15 | Wella Aktiengesellschaft | Method for treating an object with a stream of hot air, and hand-held appliance for carrying out the method |
| CN1167430A (en) * | 1995-09-13 | 1997-12-10 | 菲利浦电子有限公司 | Hair-care appliance with hair-moistness measurement by measuring the resistance of the hair, and circuit for converting the resistance value of aresistor into a measurement signal |
| WO1999026512A1 (en) * | 1997-11-21 | 1999-06-03 | Koninklijke Philips Electronics N.V. | Method of and hair dryer for drying hair using remote sensing of the moisture content of the hair |
-
2011
- 2011-11-18 FR FR1160563A patent/FR2982947B1/en not_active Expired - Fee Related
-
2012
- 2012-11-14 WO PCT/FR2012/052626 patent/WO2013072624A1/en active Application Filing
- 2012-11-14 EP EP12795546.6A patent/EP2779862B1/en active Active
- 2012-11-14 CN CN201280056383.3A patent/CN103945729B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB801286A (en) * | 1955-06-14 | 1958-09-10 | Josef Vatter | Apparatus for measuring the dryness of hair |
| US4260875A (en) * | 1978-06-19 | 1981-04-07 | Clairol Incorporated | Controlled temperature hair dryer |
| WO1994019982A1 (en) * | 1993-03-02 | 1994-09-15 | Wella Aktiengesellschaft | Method for treating an object with a stream of hot air, and hand-held appliance for carrying out the method |
| CN1167430A (en) * | 1995-09-13 | 1997-12-10 | 菲利浦电子有限公司 | Hair-care appliance with hair-moistness measurement by measuring the resistance of the hair, and circuit for converting the resistance value of aresistor into a measurement signal |
| WO1999026512A1 (en) * | 1997-11-21 | 1999-06-03 | Koninklijke Philips Electronics N.V. | Method of and hair dryer for drying hair using remote sensing of the moisture content of the hair |
| CN1244100A (en) * | 1997-11-21 | 2000-02-09 | 皇家菲利浦电子有限公司 | Method of and hair dryer for drying hair using remote sensing of moisture content of hair |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2779862A1 (en) | 2014-09-24 |
| FR2982947B1 (en) | 2014-01-10 |
| WO2013072624A1 (en) | 2013-05-23 |
| EP2779862B1 (en) | 2015-09-23 |
| FR2982947A1 (en) | 2013-05-24 |
| CN103945729B (en) | 2016-07-13 |
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