CN105433634B - Chair cushion - Google Patents

Chair cushion Download PDF

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Publication number
CN105433634B
CN105433634B CN201510290422.1A CN201510290422A CN105433634B CN 105433634 B CN105433634 B CN 105433634B CN 201510290422 A CN201510290422 A CN 201510290422A CN 105433634 B CN105433634 B CN 105433634B
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electrode
bus bar
layer
positive
negative
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CN105433634A (en
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冯欣悦
冯冠平
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Shenzhen Grahope New Materials Technologies Inc
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Grahope New Materials Technologies Inc
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Abstract

The invention relates to a chair cushion. A seat cushion, comprising: a heating film including a first insulating layer; the conducting layer is formed on the surface of the first insulating layer; the electrode layer is formed on the surface of the conducting layer and is electrically connected with the conducting layer, the electrode layer comprises a positive electrode and a negative electrode, the positive electrode comprises a positive bus bar and a plurality of positive inner electrodes extending from the positive bus bar, the negative electrode comprises a negative bus bar and a plurality of negative inner electrodes extending from the negative bus bar, and the positive inner electrodes and the negative inner electrodes are alternately arranged and spaced from each other; and a second insulating layer formed on the surface of the electrode layer; the heating film is contained in the seat cushion cover; and a power switch electrically connected to the electrode layer of the heating film. The chair cushion has a heating function and can be powered by a lower voltage.

Description

Chair cushion
Technical field
The present invention relates to a kind of chair cushions.
Background technology
With the development of society, requirement of the people to quality of the life is higher and higher.For example, chair cushion is usually configured on chair To increase comfort.Common chair cushion be only filled in upholstery cover cotton-wool carry out it is warming, when weather cold, common chair Pad cannot meet the needs of people, and the chair cushion with heating function can meet people the winter the needs of.
However, the supply voltage that the existing chair cushion with heating function needs is higher, on the one hand once leak electricity high voltage It can cause to get an electric shock, security performance is bad, and on the other hand, higher voltage has higher want for the power supply or power supply mode of power supply It asks.
The content of the invention
Based on this, it is necessary to provide a kind of chair cushion with heating function that low voltage power supply may be employed.
A kind of chair cushion, including:
Heating film, including:
First insulating layer;
Conductive layer is formed at the surface of first insulating layer;
Electrode layer is formed at the surface of the conductive layer and is electrically connected with the conductive layer, and the electrode layer includes positive electricity Pole and negative electrode, the positive electrode include positive bus bar and the electricity from multiple anodes that the positive bus bar is extended Pole, the negative electrode include negative bus bar and from electrodes in multiple cathode that the negative bus bar is extended, it is described just Extremely interior electrode is arranged alternately and spaced with electrode in the cathode;And
Second insulating layer is formed at the surface of the electrode layer;
Upholstery cover, the heating film are contained in the upholstery cover;And
Power switch is electrically connected with the electrode layer of the heating film.
In one of the embodiments, the positive bus bar and the negative bus bar are linear and parallel set Put, in multiple anodes electrode from the positive bus bar close to a lateral negative bus bar of the negative bus bar Extend, the lateral anode of the electrode from the negative bus bar close to the positive bus bar converges in multiple cathode Item extends.
In one of the embodiments, the positive bus bar and the negative bus bar are arc and interval setting, The inside of electrode lateral negative bus bar from the positive bus bar extends in the anode, electrode in the cathode The inside extension of the lateral positive bus bar from the negative bus bar.
In one of the embodiments, the heating film further include be arranged at first insulating layer and the conductive layer it Between auxiliary electrode layer, the auxiliary electrode layer is electrically connected with the conductive layer, and the auxiliary electrode layer includes auxiliary positive electrode And auxiliary negative electrode, it is described to aid in what positive electrode included auxiliary positive busbar and extended from the auxiliary positive busbar Electrode in multiple auxiliary positives, the auxiliary negative electrode include auxiliary negative busbar and extend from the auxiliary negative busbar And electrode in the multiple auxiliary negatives gone out, electrode is arranged alternately and mutually with electrode in the auxiliary negative in the auxiliary positive Interval.
In one of the embodiments, electrode in electrode and the auxiliary negative in the auxiliary positive of the auxiliary electrode layer The conductive layer projection and electrode in electrode in the anode of the electrode layer and the cathode the conductive layer projection It mutually staggers.
In one of the embodiments, the heating film further includes the first glue-line and the second glue-line, and first glue-line is set It is placed between first insulating layer and the conductive layer, second glue-line is arranged at the electrode layer and second insulation Between layer.
In one of the embodiments, the positive electrode has multiple, multiple positive electrode series connection.
In one of the embodiments, the negative electrode has multiple, multiple negative electrode series connection.
Another chair cushion, including:
Heating film, including:
First insulating layer;
First electrode layer, is formed at the surface of first insulating layer, and the first electrode layer includes positive electrode, it is described just Electrode includes positive bus bar and from electrode in multiple anodes that the positive bus bar is extended,
Conductive layer, is formed at the surface of the first electrode layer, and the conductive layer is electrically connected with the first electrode layer;
The second electrode lay is formed at the surface of the conductive layer and is electrically connected with the conductive layer, the second electrode lay Including negative electrode, the negative electrode includes negative bus bar and the electricity from multiple cathode that the negative bus bar is extended Pole, electrode and electrode in the cathode are arranged alternately and spaced in the projection of the conductive layer in the anode;And
Second insulating layer is formed at the surface of the second electrode lay;
Upholstery cover, the heating film are contained in the upholstery cover;And
Power switch is electrically connected with the first electrode layer of the heating film and the second electrode lay.
Above-mentioned chair cushion, since the positive electrode of the electrode layer of heating film includes electrode in multiple anodes, negative electrode includes multiple Electrode in cathode, electrode is arranged alternately with electrode in cathode in anode, reduces the spacing between adjacent interior electrode, so that It is smaller that the resistance of the conductive layer in anode in electrode and cathode between electrode must be located at, so as to be supplied using relatively low voltage Electricity, even if using common lithium battery power supply, you can achieve the purpose that heat rapidly, so as to which relatively low voltage is used to supply Electricity.
Description of the drawings
Fig. 1 is the structure diagram of the chair cushion of an embodiment;
Fig. 2 is the structure diagram of the heating film of the chair cushion in Fig. 1;
Fig. 3 is the structure diagram of the electrode layer of heating film in Fig. 2;
Fig. 4 is the structure diagram of the heating film of the chair cushion of another embodiment;
Fig. 5 is the structure diagram of the heating film of the chair cushion of another embodiment;
Fig. 6 is the structure diagram of the heating film of the chair cushion of another embodiment;
Fig. 7 is the structure diagram of the electrode layer of the heating film of the chair cushion of another embodiment;
Fig. 8 is the structure diagram of the electrode layer of the heating film of the chair cushion of another embodiment;
Fig. 9 is the structure diagram of the electrode layer of the heating film of the chair cushion of another embodiment;
Figure 10 is the heating film Temperature Distribution photo of the embodiment 1 of thermal infrared imager shooting;
Figure 11 is the heating film Temperature Distribution photo of the embodiment 2 of thermal infrared imager shooting.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention Specific embodiment be described in detail.Many details are elaborated in the following description in order to fully understand this hair It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not Similar improvement is done in the case of running counter to intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
Referring to Fig. 1, the chair cushion 10 of an embodiment, including heating film 110, upholstery cover 130, connecting line 140, for Denso Put 150, power switch 170, temperature control switch 180.
Specifically in the illustrated embodiment, chair cushion 10 includes cushion and the back pad being connected with cushion, and cushion and back pad It is integrally formed.Certainly, in other implementations, cushion and back pad or each independent part, chair cushion can also It only includes cushion or only includes back pad.
Referring to Fig. 2, in the illustrated embodiment, heating film 110 includes the first insulating layer 112 stacked gradually, leads Electric layer 114, electrode layer 116 and second insulating layer 118.
First insulating layer 112 is substrate.The material of first insulating layer 112 is glass or polymer.Preferably, polymer For PET, PVC, PE, PMMA, PVDF, PANI or PC.Preferably, the thickness of the first insulating layer 112 is 10 μm~125 μm.
Conductive layer 114 is formed at a side surface of the first insulating layer 112.Conductive layer 114 is formed by conductive material.It is preferred that , the material of conductive layer 114 is silver, copper, aluminium, graphene, carbon nanotubes, ITO, FTO or AZO.It is further preferred that conductive layer 114 material is single-layer graphene or multi-layer graphene.When the material of conductive layer is graphene, conductive layer 114 can also contain There is dopant, dopant is organic blended dose or inorganic doping agent.Preferably, the thickness of conductive layer is 10nm~100nm.
Electrode layer 116 is formed at the surface of conductive layer 114, and is electrically connected with conductive layer 114.
Referring to Fig. 3, in the illustrated embodiment, electrode layer 116 includes positive electrode 1162 and negative electrode 1164.Electrode The thickness of layer 116 is 10nm~35 μm.
Positive electrode 1162 includes positive bus bar 1162a and from multiple anode that positive bus bar 1162a extends Electrode 1162b.
In the illustrated embodiment, positive bus bar 1162a substantially strips, including main body (figure is not marked), connecting portion (figure is not marked) and the extension being connected with connecting portion (figure is not marked).It is straight line strip that main body, connecting portion and extension, which are,.Connection The one end in portion and one end vertical connection of main body, the other end of connecting portion and one end vertical connection of extension, and main body is with prolonging Extending portion is located at the both sides of connecting portion respectively.
Electrode 1162b has multiple in anode, and the one side of the equal autonomous agents of electrode 1162b is extended in multiple anodes.Scheming In the embodiment shown, electrode 1162b for linear pattern and is each perpendicular to the main body of positive bus bar 1162a in anode.In anode The connecting portion of electrode 1162b and positive bus bar 1162a is in the homonymy of the main body of positive bus bar 1162a.Electrode in anode The width of 1162b is 0.5mm~4mm.The width of positive bus bar 1162a is much larger than the width of electrode 1162b in anode.Anode The width of busbar 1162a is 6mm~10mm.
Negative electrode 1164 includes negative bus bar 1164a and from multiple cathode that negative bus bar 1164a extends Electrode 1164b.
In the illustrated embodiment, negative bus bar 1164a substantially strips, including main body (figure is not marked), connecting portion (figure is not marked) and the extension being connected with connecting portion (figure is not marked).It is straight line strip that main body, connecting portion and extension, which are,.Connection The one end in portion and one end vertical connection of main body, the other end of connecting portion and one end vertical connection of extension, and main body is with prolonging Extending portion is located at the both sides of connecting portion respectively.The main body of negative bus bar 1164a and the main body of positive bus bar 1162a are mutually parallel And be arranged at intervals, in anode electrode 1162b be located at negative bus bar 1164a main body and positive bus bar 1162a main body it Between, and in anode the one end of electrode 1162b away from positive bus bar 1162a and negative bus bar 1164a main body separately.It is negative The connecting portion of pole busbar 1164a is from one end of the main body of negative bus bar 1164a to the connection close to positive bus bar 1162a The direction extension in portion, and the connecting portion of negative bus bar 1164a and the connecting portion of positive bus bar 1162a are substantially concordant.
Electrode 1164b has multiple in cathode, and electrode 1164b is close just from the main body of negative bus bar 1164a in cathode The one side of the main body of pole busbar 1162a is extended, and is extended towards the main body of positive bus bar 1162a, and electrode in cathode The end of 1164b and the main body of positive bus bar 1162a are separately.In the illustrated embodiment, electrode 1164b is in cathode The main body of linear pattern and vertical negative bus bar 1164a.Electrode 1164b and electrode 1162b in anode is arranged alternately in cathode It is and spaced, i.e. adjacent with electrode 1162b in anode is electrode 1164b phases in electrode 1164b, with cathode in cathode That adjacent is electrode 1162b in anode.Adjacent interior electrode is from different busbars.Preferably, in electrode layer 116, anode Interior electrode 1162b is uniformly distributed with electrode 1164b in cathode, i.e., electrode 1164b in electrode 1162b and cathode in adjacent anode Between spacing it is identical, be 2mm~8mm.The connecting portion of electrode 1164b and negative bus bar 1164a converges in cathode in cathode Flow the homonymy of the main body of a 1164a.The width of electrode 1164b is 0.5mm~4mm in cathode.The width of negative bus bar 1164a Much larger than the width of electrode 1164b in cathode.The width of negative bus bar 1164a is 6mm~10mm.
The material of electrode layer 116 is silver, copper, aluminium, platinum, graphene, carbon nanotubes, ITO, FTO or AZO.Certainly, electrode layer 116 can also be formed by silver paste or copper slurry coating solidify afterwards, and electrode layer 116 is inevitably containing other materials in slurry at this time Material.Preferably, electrode layer 116 is integrally formed with conductive layer 114.Preferably, when the material of conductive layer 114 is graphene, electricity The material of pole layer 116 is also graphene, and electrode layer 116 is integrally formed with conductive layer 114.By setting electrode layer 116, by electricity Pole layer 116 is applied to material and is made of single-layer graphene on conductive layer 114 can to cause heating film 110 in the voltage of≤12V Lower work if the material of conductive layer 114 is multi-layer graphene, can further reduce operating voltage.
Further, the positive bus bar 1162a of electrode layer 116, in anode electrode 1162b, negative bus bar 1164a and Electrode 1164b can be same material in cathode, or not same material.
Second insulating layer 118 is formed at the surface of electrode layer 116.The material of second insulating layer 118 is glass or polymerization Object.Preferably, polymer PET, PVC, PE, PMMA, PVDF, PANI or PC.Preferably, the thickness of second insulating layer 118 is 10 μm~125 μm.
Upholstery cover 130 is sheathed on heating film 110, so as to which heating film 110 be taken in wherein.The material of upholstery cover 130 can be with For cloth or cladding, naturally it is also possible to using other materials commonly used in the trade.In order to increase warming effect and increase comfort, Heat insulating material, such as cotton-wool can also be filled in upholstery cover 130.
Please refer to Fig. 1 and Fig. 2, it is electrically connected for electric installation 150 by connecting line 140 and the electrode layer 116 of heating film 110 It connects.It is removable for electric installation 150 specifically in the present embodiment for electric installation 150 for being powered to heating film 110 Formula power supply, such as lithium battery.Certainly in other embodiments, for electric installation 150 or converter, 220V voltages are turned Low-voltage is changed to be exported.
Further, for being additionally provided with charging interface 152 on electric installation 150 to charge.
Power switch 170 is electrically connected simultaneously with for electric installation 150 and electrode layer 116, for controlling for electric installation 150 to electricity Whether the power supply of pole layer 116.
Temperature control switch 180 is electrically connected with for electric installation 150 and electrode layer 116, for controlling for electric installation 150 to electrode layer The voltage levels of 116 outputs, so as to control the heating temp of conductive layer 114.
Further, in the illustrated embodiment, chair cushion 10 further includes control piece 190, is opened for electric installation 150, power supply Pass 170 and temperature control switch 180 are integrated in control piece 190.
Preferably, in order to obtain good temperature uniformity at low voltage, for the special construction of electrode layer 116, The temperature difference, initial temperature, supply voltage, spacing and conduction in adjacent anode in electrode 1162b and cathode between electrode 1164b The square resistance of layer 114 meets equation below:
T=kU2/d2R+t (1)
In formula (1):
T --- initial temperature, unit are DEG C;
T --- the final temperature difference of heating film, unit are DEG C;
U --- supply voltage, unit V, U≤12V;
D --- the spacing in adjacent anode in electrode 1162b and cathode between electrode 1164b, unit cm are adjacent Spacing in anode in electrode 1162b and cathode between electrode 1164b according to it is conductive it is laminated on distance computation;
R --- conductive layer square resistance, unit are Ω/;
K --- constant, value range 10-200, k value range is according to the coefficient of conductivity meeting between heating film and air Different, the coefficient of conductivity between heating film and air is inversely proportional.
Further, in order to ensure the uniformity of 10 heating temperature of chair cushion, positive bus bar 1162a and negative bus bar The width and thickness of 1162b need to consider the current carrying capacity and resistivity of material therefor, and resistivity is sufficiently small, to reduce just Voltage drop on pole busbar 1162a and negative bus bar 1162b ensures in anode electrode 1164b in electrode 1162b and cathode Different position ceiling voltage and the minimum voltage difference for being arranged on positive bus bar 1162a or negative bus bar 1162b are no more than 10%, and current carrying capacity determine positive bus bar 1162a and negative bus bar 1162b sectional areas have to be larger than it is a certain Numerical value just can guarantee that positive bus bar 1162a and negative bus bar 1162b are not burned out, and there are equation below (2):
n(n+1)lρl/ WHR < 1/5 (2)
Wherein:
N --- the space-number that electrode 1164b is generated in electrode 1162b and cathode in anode;
ρ1--- positive bus bar 1162a and negative bus bar 1162b resistivity of material, unit are Ω m;
L --- in anode in electrode 1162b and cathode electrode 1164b length, unit m;
W --- positive bus bar 1162a and negative bus bar 1162b width, unit m;
H --- positive bus bar 1162a and negative bus bar 1162b thickness, unit m;
The square resistance of R --- conductive layer 114, unit are Ω/.
In above-mentioned formula, it is assumed that positive bus bar 1162a and negative bus bar 1162b material identicals, width and thickness are equal Identical, electrode 1162b is identical with the length of electrode 1164b in cathode in anode.
Equally, interior electrode also needs to ensure current carrying capacity and considers that maximum voltage difference is no more than on same interior electrode 10%.There are equation below (3):
nl2ρ2/ whLR < 1/5 (3)
Wherein:
N --- the space-number that electrode 1164b is generated in electrode 1162b and cathode in anode;
L --- in anode in electrode 1162b and cathode electrode 1164b length, unit m;
ρ2--- in anode in electrode 1162b and cathode the material of electrode 1164b resistivity, unit is Ω m;
W --- in anode in electrode 1162b and cathode electrode 1164b width, unit m;
H --- in anode in electrode 1162b and cathode electrode 1164b thickness, unit m;
L --- the length of positive bus bar 1162a and negative bus bar 1162b, unit m;
The square resistance of R --- conductive layer 114, unit are Ω/.
In above-mentioned formula, it is assumed that positive bus bar 1162a and negative bus bar 1162b sizes are identical, electrode in anode Material, length, width and the thickness all same of electrode 1164b in 1162b and cathode.
Above-mentioned chair cushion by using the electrode layer of special construction, by setting in anode electrode in electrode and cathode, reduces Spacing between adjacent interior electrode, so that the resistance of the conductive layer between electrode in electrode in anode and cathode It is smaller, so as to use relatively low power voltage supply, even if using common lithium battery power supply, you can reach the mesh heated rapidly 's;When the material of conductive layer 114 is single-layer graphene, it can be obtained using the power voltage supply not higher than 1.5V and added with traditional The identical heating effect of hotting mask;By the area of the positive bus bar 1162a and negative bus bar 1164a that change electrode layer, just Spacing in extremely interior electrode 1162b and cathode between electrode 1164b so as to realize different heating powers, meets different Heating temperature demand.
Referring to Fig. 4, the chair cushion of another embodiment is roughly the same with the structure of chair cushion 10, difference is:It is illustrating Embodiment in, the heating film 210 of chair cushion includes the first insulating layer 212, the first glue-line 213, the conductive layer that stack gradually 214th, electrode layer 216, the second glue-line 217 and second insulating layer 218.214 and first insulating layer 212 of conductive layer passes through the first glue-line 213 bondings, second insulating layer 218 are bonded with electrode layer 216 by second insulating layer 218.Preferably, the material of the first glue-line 213 Expect for ultraviolet cured adhesive, hot melt adhesive or silica gel, the material of the second glue-line 217 is ultraviolet cured adhesive, hot melt adhesive or silica gel.
In above-mentioned chair cushion, heating film 210 is prepared by following steps:
Step S310, prefabricated board is provided, prefabricated board includes being used to prepare the base of electrode layer and is formed at substrate surface Conductive layer 214.
Preferably, base is metal foil.Metal foil is copper foil, nickel foil or other metal foils, is not limited herein.
In the step, the prefabricated board that is provided, conductive layer (such as graphene) is directly grown in base.
Step S320, first insulating layer 212 is bonded to the conductive layer 214 of prefabricated board by the first glue-line 213.
Step S330, mask is prepared on the surface of base, and base is etched, electrode is obtained after removing mask Layer.
In the step, the design of the pattern of mask electrode layer as needed.During etching process, mask will be made Prefabricated board be placed in etching solution, etching remove not by the base of mask protection.
Preferably, the substance containing the electric conductivity that can improve conductive layer 214 in etching solution.
Step S340, second insulating layer 218 is bonded to the surface of electrode layer 216 by the second glue-line 217.
Preferably, the second glue-line 217 and second insulating layer 218 offer the positive electrode and negative electricity corresponding to electrode layer 216 The through hole of pole is to make lead.
The preparation method of above-mentioned heating film 210 is relatively simple, saves time and materials cost, meanwhile, using metal foil system Standby electrode layer, good conductivity are conducive to heat the control of the uniformity of film temperature.
Preferably, the thickness of the first glue-line 213 and the second glue-line 217 is 25~75 μm.
Referring to Fig. 5, the chair cushion of another embodiment is roughly the same with the structure of chair cushion 10, difference is:It is illustrating Embodiment in, the heating film 410 of chair cushion include the first insulating layer 412 stacked gradually, conductive layer 414, electrode layer 416, Second glue-line 417 and second insulating layer 418.Second insulating layer 418 is bonded with electrode layer 416 by second insulating layer 418.It is preferred that , the material of the second glue-line 417 is ultraviolet cured adhesive, hot melt adhesive or silica gel.
In above-mentioned chair cushion, heating film 410 is prepared by following steps:
Step S510, electrode layer is prepared in 144 surface printing of conductive layer or vapor deposition for being formed at 412 surface of the first insulating layer 416。
Step S520, second insulating layer 418 is bonded to the surface of electrode layer 416 by the second glue-line 417.
Preferably, the second glue-line 417 and second insulating layer 418 offer the positive electrode and negative electricity corresponding to electrode layer 416 The through hole of pole is to make lead.
The preparation method of above-mentioned heating film 410 is relatively simple.
Referring to Fig. 6, the chair cushion of another embodiment is roughly the same with the structure of chair cushion 10, difference is:It is illustrating Embodiment in, the heating film 510 of chair cushion includes the first insulating layer 512, auxiliary electrode layer 513, the conductive layer that stack gradually 514th, electrode layer 516 and second insulating layer 518.Auxiliary electrode layer 513 is electrically connected with conductive layer 514.The knot of auxiliary electrode layer 513 Structure is identical with the structure of electrode layer 516.Auxiliary electrode layer 513 includes auxiliary positive electrode (figure does not regard) and auxiliary negative electrode (is schemed not Depending on).Positive electrode is aided in include auxiliary positive busbar and the electricity from multiple auxiliary positives that auxiliary positive busbar extends Pole.Negative electrode is aided in include auxiliary negative busbar and the electricity from multiple auxiliary negatives that auxiliary negative busbar extends Pole.Electrode is arranged alternately and spaced with electrode in auxiliary negative in auxiliary positive.It is further preferred that auxiliary electrode layer In 513 auxiliary positive in electrode and auxiliary negative electrode in the projection of conductive layer 514 and the anode of electrode layer 516 electrode and Electrode is mutually staggered in the projection of conductive layer in the cathode.
Referring to Fig. 7, the chair cushion of another embodiment is roughly the same with the structure of chair cushion 10, difference is:It is illustrating Embodiment in, electrode layer 616 include positive electrode 6162, the first negative electrode 6164 and the second negative electrode 6166.First negative electricity It connects with the second negative electrode 6166 pole 6164.Positive electrode 6162 includes positive bus bar 6162a and prolongs from positive bus bar 6162a Electrode 6162b in the multiple anodes stretched.Electrode 6162b has multiple in anode, and electrode 6162b is from anode in multiple anodes Extend the one side of busbar 6162a.In the illustrated embodiment, electrode 6162b is for linear pattern and vertical in anode Positive bus bar 6162a.
First negative electrode 6164 includes the first negative bus bar 6164a and extends from the first negative bus bar 6164a Multiple first cathode in electrode 6164b.Second negative electrode includes the second negative bus bar 6166a and from the second negative bus bar Electrode 6166b in multiple second cathode that 6166a extends.First negative bus bar 6164a and the second negative bus bar 6166a is linear pattern, and the first negative bus bar 6164a and the second negative bus bar 6166a are put down with positive bus bar 6162a Row is set, and the first negative bus bar 6164a is located on the same line and spaced with the second negative bus bar 6166a, and The one end of first negative bus bar 6164a away from the second negative bus bar 6166a and one end of positive bus bar 6162a are substantially flat Together, the one end of the second negative bus bar 6166a away from the first negative bus bar 6164a and the other end of positive bus bar 6162a It is substantially concordant.
The one end of electrode 6162b away from positive bus bar 6162a is close to the first negative bus bar 6164a or second in anode Negative bus bar 6166a, and with the first negative bus bar 6164a or the second negative bus bar 6166a separately.In first cathode From the first negative bus bar 6164a, the electrode 6162a in a lateral anode of electrode 6162a in anode extends electrode 6164b And with electrode 6162a in anode separately, and in the first cathode electrode 6164b with corresponding to the first negative bus bar 6164a's Electrode 6162b is arranged alternately in anode.Electrode 6166b is electric in anode from the second negative bus bar 6166a in second cathode In a lateral anode of pole 6162a electrode 6162a extensions and with electrode 6162a in anode separately, and electrode in the second cathode 6166b corresponding to electrode 6162b in the anode of the second negative bus bar 6166a with being arranged alternately.
It should be noted that the first negative electrode 6164 is not limited to connect with the second negative electrode 6166, can also parallel connection set It puts.Positive electrode is alternatively multiple, multiple positive electrode serial or parallel connections.Negative electrode is not limited to two, or one or big In 2.
Referring to Fig. 8, the chair cushion of another embodiment is roughly the same with the structure of chair cushion 10, difference is:It is illustrating Embodiment in, the positive bus bar 7162a and negative bus bar 7164a of electrode layer 716 are linear.Negative bus bar 7162a and positive bus bar 7164a is arranged at intervals and negative bus bar 7164a prolongs along the extending direction of positive bus bar 7162a It stretches.Electrode 7162b bends extension from positive bus bar 7162a to negative bus bar 7164a in anode, electrode 7162b in anode End close to negative bus bar 7164a and with negative bus bar 7164a separately.Electrode 7164b converges from cathode in cathode 7164a is bent to positive bus bar 7162a to be extended, in cathode the end of electrode 7164b close to positive bus bar 7162a and with Positive bus bar is separately.
Referring to Fig. 9, the chair cushion of another embodiment is roughly the same with the structure of chair cushion 10, difference is:It is illustrating Embodiment in, positive bus bar 8162a and negative bus bar 8164a are arc and interval setting, positive bus bar 8162a and negative bus bar 8164a enclose and are set as circular ring shape.Electrode 8162a is laterally born from positive bus bar 8162a in anode The inside of pole busbar 8162b extends, and the end of electrode 8162b is converged close to negative bus bar 8164a and with cathode in anode 8164a is separately.Electrode 8164b prolongs from negative bus bar 8164a on the inside of lateral positive bus bar 8162a in cathode Stretch, in cathode the end of electrode 8164b close to positive bus bar 8162a and with positive bus bar separately.In the implementation of diagram In mode, electrode 8164b is linear pattern in electrode 8162b and cathode in anode.
It should be noted that positive bus bar and negative bus bar are not limited to the shape that above-mentioned several embodiments are enumerated, Or other shapes;Electrode is also not necessarily limited to the shape enumerated for above-mentioned several embodiments in electrode and cathode in anode, Can be other shapes, such as shaped form or waveform, as long as so that electrode is arranged alternately with electrode in cathode in anode, reduction Spacing in anode in electrode and cathode between electrode.
It is appreciated that positive electrode and negative electrode can also respectively be set in the both sides of conductive layer, positive electrode and negative electrode exist The projection of conductive layer is identical with the structure of conductive layer in above-described embodiment.
It is further illustrated below in conjunction with specific embodiment.
Embodiment 1:
Please refer to Fig. 3 and Fig. 4, conductive layer of the single-layer graphene as heating film, electrode layer is printed using silver paste.
1st, a layer graphene, graphene are shifted on the PET (the first insulating layer) of 125 μm of area 150mm × 150mm thickness Overdoping, sheet resistance are 250 Ω/;
2nd, ag paste electrode pattern, pattern form such as Fig. 3 institutes are printed on the graphene shifted using screen printing apparatus Showing, electrode spacing is 6mm in electrode and cathode in anode, electrode long 108mm, wide 1mm in electrode and cathode in anode, totally 15 Item, positive bus bar and the wide 8mm of negative bus bar, 25 μm of silver paste thickness;
3rd, the electrode printed is placed in baking oven and toasted, cure silver paste, baking temperature is 130 DEG C, and the time is 40min。
Initial temperature is room temperature (22 DEG C), and in such cases, lead is respectively connected the positive electrode of electrode layer and negative electrode The positive and negative anodes of 5V power supplys are connect, after tested, can reach stable state within 60 seconds, the mean temperature of heating film is up to 77.5 DEG C of left sides at this time Right (room temperature is 22 DEG C).
Average heating power using heating film during 3.7V power voltage supplies is 1500w/m2Left and right.
Preferably, further follow the steps below:
4th, the OCA glue of 50 μm of area 150mm × 150mm thickness is fit together with PET of the same area;
5th, square hole is opened in the PET/OCA posted, hole size is 5mm × 5mm, the position of perforate using laser cutting device It puts after ensureing that the PET/OCA is bonded with electrode layer case, bus bar termination exposes the electrode of 5mm × 5mm;
6th, to being bonded PET/OCA with electrode layer behind good position;
7th, the electrode exposed in aperture goes out to make lead;
In such cases, it is 2.7 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 5V power supplys respectively, after tested, Stable state is can reach within 60 seconds, Figure 10 show the heating film Temperature Distribution photo shot using thermal infrared imager, adds at this time The mean temperature of hotting mask is up to 66 DEG C or so (room temperature is 22 DEG C).
Test result shows that the average heating power using heating film during 3.7V power voltage supplies is 1300w/m2Left and right, and The use of traditional heating film average heating power without interior electrode is 5w/m when voltage is 3.7V2Left and right will reach new with us The identical heating effect of the heating film of design need to be improved using voltage to 60V or so, this is considerably beyond human-body safety electricity Pressure.
Embodiment 2:
The present embodiment uses conductive layer of two layer graphenes as heating film, and electrode layer is printed using silver paste.
1st, two layer graphenes are shifted on the PET (the first insulating layer) of 125 μm of area 120mm × 120mm thickness as leading Electric layer, overdoping, sheet resistance are 120 Ω/ to graphene;
2nd, ag paste electrode layer is printed on the conductive layer shifted using screen printing apparatus, pattern form as shown in figure 9, Busbar outside diameter 96mm, interior electrode spacing be 6mm, wide 1mm, the wide 8mm of busbar, 25 μm of silver paste thickness;
3rd, the electrode pattern printed is placed in baking oven and toasted, cure silver paste, baking temperature is 130 DEG C, and the time is 40min。
In such cases, lead is connected to the positive and negative anodes of 5V power supplys respectively, after tested, 60S can reach stable state, this When heating film mean temperature up to 137.7 DEG C or so (initial temperatures be 22 DEG C of room temperature).
Test result shows, using the electrode design scheme that we invent, using during 3.7V power voltage supplies heating film it is flat Equal heating power is 3168w/m2Left and right.
Preferably, further follow the steps below:
4th, the OCA glue of 50 μm of area 120mm × 120mm thickness is fit together with PET of the same area;
5th, square hole is opened in the PET/OCA posted, hole size is 5mm × 5mm, the position of perforate using laser cutting device It puts after ensureing that the PET/OCA is bonded with electrode layer, bus bar termination exposes the electrode of 5mm × 5mm;
6th, to being bonded PET/OCA with electrode layer behind good position;
7th, the electrode exposed in aperture goes out to make lead;
In such cases, it is 2 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 5V power supplys respectively, after tested, 40S clocks can reach stable state, Figure 11 show the heating film Temperature Distribution photo shot using thermal infrared imager, at this time The mean temperature of heating film is up to 90.9 DEG C or so (room temperature is 22 DEG C).
Test result shows that the average heating power using heating film during 3.7V power voltage supplies is 1300w/m2Left and right, and The use of traditional heating film average heating power without interior electrode is 5w/m when voltage is 3.7V2Left and right will reach new with us The identical heating effect of the heating film of design need to be improved using voltage to 60V or so, this is considerably beyond human-body safety electricity Pressure.
Embodiment 3:
Referring to Fig. 7, conductive layer of the single-layer graphene as heating film, preparation process are as follows:
1st, will grow the copper foil of graphene (for graphene through overdoping, sheet resistance is 250 Ω/) and size be 150mm × 300mm thickness is that 125 μm of PET is combined by UV stickers, and copper foil size is 140mm × 280mm, and thickness is 25 μm;
2nd, by UV adhesive curings, wavelength 365nm, energy 1000mJ/cm2
3rd, peelable glue mask is printed on the copper foil posted using screen printing apparatus, pattern form as shown in fig. 7, this When, it is equivalent to heating film and is divided into two, form the effect of the two pieces of heating film cascades in left and right, actual is halved using voltage, interior Electrode spacing is 3mm, long 108mm, wide 1mm, totally 32, the wide 8mm of busbar, 25 μm of copper thickness;
4th, the electrode pattern printed is placed in baking oven and toasted, make peelable adhesive curing, baking temperature is 135 DEG C, the time For 40min;
5th, the sample after toasting is placed in 30% FeCl3It is etched in etching liquid, drying is washed after etching, takes electrode off The peelable glue on surface.
In such cases, it is 1.7 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 3.7V lithium ion batteries respectively (heating film compared with half is 1.85V), after tested, the temperature of heating film is up to 46 DEG C or so (room temperatures 22 after 30S stablizes ℃)。
Test result is shown, using the electrode design scheme of the present invention, (two electrodes are applied to using 3.7V voltages Voltage is 1.85V) power supply when heating film average heating power be 1521w/m2Left and right.
Preferably, further follow the steps below:
6th, the OCA glue of 50 μm of area 150mm × 300mm thickness is fit together with PET of the same area;
7th, square hole is opened in the PET/OCA posted, hole size is 5mm × 5mm, the position of perforate using laser cutting device It puts after ensureing that the PET/OCA is bonded with electrode layer, bus bar termination exposes the electrode of 5mm × 5mm;
8th, to being bonded PET/OCA with electrode pattern behind good position;
9th, the electrode exposed in aperture goes out to make lead;
It is 2.5 Ω to measure heating film resistance, lead is connected respectively 3.7V (actual using voltage be equivalent to 1.85V) lithium from The positive and negative anodes of sub- battery, after tested, the temperature of heating film is up to 45 DEG C or so (room temperature is 22 DEG C), coincidence formula T after 70S stablizes =kU2/d2R+t (K=151).
Embodiment 4:
The present embodiment uses conductive layer of the ito thin film as heating film, and silver paste is as electrode, and design is with reference to Fig. 3, system Standby technique is as follows:
1st, the use of screen printing apparatus is that size is 150mm × 150mm in sheet resistance, the ito thin film that sheet resistance is 150 Ω is (square Hinder for 400 Ω/) on print ag paste electrode pattern, pattern form as shown in figure 3, interior electrode spacing be 6mm, long 108mm, it is wide 1mm, totally 15, the wide 8mm of busbar, 25 μm of silver paste thickness;
2nd, the electrode pattern printed is placed in baking oven and toasted, cure silver paste, baking temperature is 130 DEG C, and the time is 40min。
3rd, the OCA glue of 50 μm of area 150mm × 150mm thickness is fit together with PET of the same area;
4th, square hole is opened in the PET/OCA posted, hole size is 5mm × 5mm, the position of perforate using laser cutting device It puts after ensureing that the PET/OCA is bonded with electrode layer, bus bar termination exposes the electrode of 5mm × 5mm;
5th, to being bonded PET/OCA with electrode pattern behind good position;
6th, the electrode exposed in aperture goes out to make lead;
In such cases, it is 5 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 12V power supplys respectively, after tested, 55S can reach stable state, and the mean temperature of heating film is up to 92 DEG C or so (room temperature is 22 DEG C), coincidence formula T=at this time kU2/d2R+t (K=70).
Embodiment 5:
The present embodiment transparency conducting layer uses single-layer graphene (250 Ω/), and electrode layer uses 10 layer graphenes, prepares Method is roughly the same with embodiment 1, the difference is that:By the way of continuing to shift graphene on graphene film, transfer To 11th layer, stop transfer, 10 layer graphenes above are then etched into patterned electrode layer or using direct growth Multi-layer graphene, then patterned electrode layer is made, the pattern of the present embodiment electrode layer is as shown in figure 3, interior electrode spacing is 3mm, long 108mm, wide 1mm, totally 15, the wide 8mm of busbar, electrode (10 layer graphene) thickness 35nm.
In such cases, it is 2 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 1.5V power supplys respectively, after tested, 85S can reach stable state, and the mean temperature of heating film is up to 34 DEG C or so (room temperature is 22 DEG C), coincidence formula T=at this time kU2/d2R+t (K=120).
Embodiment 6:
The present embodiment is using 4 layer graphenes (62.5 Ω/) as conductive layer, and the material of electrode layer is ITO, preparation method It is roughly the same with embodiment 1, the difference is that:Using when ITO is printed on conductive layer, electrode patterning design referring to Fig. 9, interior electrode spacing be 4mm, wide 1mm, totally 16, the wide 8mm of busbar, 25 μm of silver paste thickness.
In such cases, it is 1.6 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 7.5V power supplys respectively, through surveying Examination, 100S can reach stable state, and the mean temperature of heating film meets public affairs up to 103 DEG C or so (room temperature is 22 DEG C) at this time Formula T=kU2/d2R+t (K=90).
Embodiment 7:
Embodiment 7 is roughly the same with embodiment 3, and difference is:The structure of electrode layer is as shown in figure 3, interior electrode spacing is 3mm, long 108mm, wide 1mm, totally 115, the wide 8mm of busbar, 25 μm of copper platinum thickness.
In such cases, it is 1.7 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 12V power supplys respectively, through surveying Examination, 100S can reach stable state, and the mean temperature of heating film meets public affairs up to 226 DEG C or so (room temperature is 22 DEG C) at this time Formula T=kU2/d2R+t (K=32).
Embodiment 8:
Embodiment 8 is roughly the same with embodiment 1, and difference is:Electrode layer is made of copper foil, electrode layer structure such as Fig. 9 institutes Show, interior electrode spacing be 2mm, long 108mm, wide 1mm, totally 16, the wide 8mm of busbar, 25 μm of copper thickness.With single-layer graphene The sheet resistance of conductive layer as material is 250 Ω/.
In such cases, it is 2 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 3.7V power supplys respectively, after tested, 30S can reach stable state, and the mean temperature of heating film is up to 143.8 DEG C or so (room temperature is 22 DEG C), coincidence formula T at this time =kU2/d2R+t (K=89).
Embodiment 9:
The present embodiment uses the two sides that positive electrode and negative electrode are separately positioned in conductive layer, and positive electrode and negative electrode are being led As shown in figure 3, the material of conductive layer uses single-layer graphene (sheet resistance is 250 Ω/), electrode uses 5-10 layers for the projection of electric layer Graphene or thickness be 10-30 μm of copper foil, wherein, positive and negative adjacent inner electrodes spacing is 4mm, long 108mm, wide 1mm, altogether 15, the wide 8mm of busbar.
In such cases, it is 2.1 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 7.5V power supplys respectively, through surveying Examination, 30S can reach stable state, and the mean temperature of heating film is up to 210 DEG C or so (room temperature is 22 DEG C), coincidence formula at this time T=kU2/d2R+t (K=134).
Embodiment 10:
Embodiment 10 is roughly the same with embodiment 3, and difference is:The structure of electrode layer is as shown in fig. 7, conductive layer uses 6 Layer graphene (sheet resistance is 41.6 Ω/), electrode layer is made of copper foil.Interior electrode spacing be 3mm, wide 1mm, totally 9, busbar Wide 8mm, 25 μm of copper thickness.
In such cases, it is 1.9 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 1.5V power supplys respectively, through surveying Examination, 30S can reach stable state, and the mean temperature of heating film meets public affairs up to 86.3 DEG C or so (room temperature is 22 DEG C) at this time Formula T=kU2/d2R+t (K=107).
Embodiment 11:
Embodiment 11 is roughly the same with embodiment 1, and difference is:Interior electrode and busbar are using different materials, metal Platinum is as the material of the material of busbar and 10 layers of graphene as interior electrode.Material of the single-layer graphene as transparency conducting layer Material (sheet resistance is 250 Ω/).The structure of electrode layer as shown in figure 3, electrode spacing is 5mm, long 108mm, wide 1mm in graphene, Totally 32, the wide 8mm of busbar, 25 μm of thickness.
In such cases, it is 1.9 Ω to measure heating film resistance, and lead is connected to the positive and negative anodes of 12V power supplys respectively, through surveying Examination, 30S can reach stable state, and the mean temperature of heating film is up to 243 DEG C or so (room temperature is 22 DEG C), coincidence formula at this time T=kU2/d2R+t (K=96).
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that come for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of chair cushion, which is characterized in that including:
Heating film, including:
First insulating layer;
Conductive layer is formed at the surface of first insulating layer;
Electrode layer is formed at the surface of the conductive layer and is electrically connected with the conductive layer, the electrode layer include positive electrode and Negative electrode, the positive electrode include positive bus bar and from electrode, institutes in multiple anodes that the positive bus bar is extended Stating negative electrode includes negative bus bar and the electricity from electrode in multiple cathode that the negative bus bar is extended, the anode Pole is arranged alternately and spaced with electrode in the cathode;And
Second insulating layer is formed at the surface of the electrode layer;
Upholstery cover, the heating film are contained in the upholstery cover;
Power switch is electrically connected with the electrode layer of the heating film;And
It is described to be electrically connected for electric installation by connecting line with the electrode layer of the heating film for electric installation;
Meet the following formula between the conductive layer, electrode layer and confession electric installation:
T=kU2/d2R+t, wherein, t is the initial temperature of the heating film, and T is the final temperature difference of the heating film, and U is described For the supply voltage of electric installation, U≤12V, d are the spacing of electrode and electrode in cathode in adjacent positive, and R is the conductive layer Square resistance, k are the constant being derived between 10~200.
2. chair cushion according to claim 1, which is characterized in that the positive bus bar and the negative bus bar are straight It is linear and be arranged in parallel, in multiple anodes electrode from the positive bus bar close to a lateral institute of the negative bus bar State negative bus bar extension, in multiple cathode electrode from the negative bus bar close to the one lateral of the positive bus bar The positive bus bar extension.
3. chair cushion according to claim 1, which is characterized in that the positive bus bar and the negative bus bar are straight Linear, the negative bus bar and the positive bus bar are arranged at intervals and the negative bus bar is along the positive bus bar Extending direction extends, and electrode bends extension, the cathode from the positive bus bar to the negative bus bar in the anode Interior electrode bends extension from the negative bus bar to the positive bus bar.
4. chair cushion according to claim 1, which is characterized in that the positive bus bar and the negative bus bar are arc Shape and interval setting, the inside extension of electrode lateral negative bus bar from the positive bus bar in the anode, The inside extension of electrode lateral positive bus bar from the negative bus bar in the cathode.
5. chair cushion according to claim 1, which is characterized in that the heating film, which further includes, is arranged at first insulating layer And the auxiliary electrode layer between the conductive layer, the auxiliary electrode layer are electrically connected with the conductive layer, the auxiliary electrode layer Including auxiliary positive electrode and auxiliary negative electrode, the auxiliary positive electrode includes auxiliary positive busbar and is converged from the auxiliary positive Electrode in multiple auxiliary positives for extending of stream item, the auxiliary negative electrode include auxiliary negative busbar and from the auxiliary Electrode in multiple auxiliary negatives that negative bus bar is extended, electrode and electrode in the auxiliary negative in the auxiliary positive It is arranged alternately and spaced.
6. chair cushion according to claim 5, which is characterized in that electrode and described in the auxiliary positive of the auxiliary electrode layer In auxiliary negative electrode the conductive layer projection with electrode in electrode in the anode of the electrode layer and the cathode in institute The projection for stating conductive layer mutually staggers.
7. chair cushion according to claim 1, which is characterized in that the heating film further includes the first glue-line and the second glue-line, First glue-line is arranged between first insulating layer and the conductive layer, and second glue-line is arranged at the electrode layer And between the second insulating layer.
8. chair cushion according to claim 1, which is characterized in that the positive electrode has multiple, multiple positive electrode series connection.
9. chair cushion according to claim 1, which is characterized in that the negative electrode has multiple, multiple negative electrode series connection.
10. a kind of chair cushion, which is characterized in that including:
Heating film, including:
First insulating layer;
First electrode layer, is formed at the surface of first insulating layer, and the first electrode layer includes positive electrode, the positive electrode Including positive bus bar and from electrode in multiple anodes that the positive bus bar is extended,
Conductive layer, is formed at the surface of the first electrode layer, and the conductive layer is electrically connected with the first electrode layer;
The second electrode lay is formed at the surface of the conductive layer and is electrically connected with the conductive layer, and the second electrode lay includes Negative electrode, the negative electrode include negative bus bar and from electrode, institutes in multiple cathode that the negative bus bar is extended Electrode and electrode in the cathode is stated in anode to be arranged alternately and spaced in the projection of the conductive layer;And
Second insulating layer is formed at the surface of the second electrode lay;
Upholstery cover, the heating film are contained in the upholstery cover;
Power switch is electrically connected with the first electrode layer of the heating film and the second electrode lay;And
It is described to be electrically connected for electric installation by connecting line and the first electrode layer and the second electrode lay of the heating film for electric installation It connects;
Meet the following formula between the conductive layer, first electrode layer, the second electrode lay and confession electric installation:
T=kU2/d2R+t, wherein, t is the initial temperature of the heating film, and T is the final temperature difference of the heating film, and U is described For the supply voltage of electric installation, U≤12V, d are electrode and projection of the electrode on the conductive layer in cathode in adjacent positive Spacing, R are the square resistance of the conductive layer, and k is the constant being derived between 10~200.
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Publication number Priority date Publication date Assignee Title
CN105465874B (en) * 2015-05-29 2018-11-20 烯旺新材料科技股份有限公司 Heating sheet
CN105466005B (en) * 2015-05-29 2018-11-20 烯旺新材料科技股份有限公司 Foot bathing basin

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CN103010057A (en) * 2011-09-21 2013-04-03 W.E.T.汽车系统股份公司 Method for providing heat to vehicular seat and device thereof
CN204048857U (en) * 2014-06-27 2014-12-31 苏州原点工业设计有限公司 A kind of chair cushion
CN104354620A (en) * 2014-11-11 2015-02-18 廊坊市金色时光科技发展有限公司 Conductive heating film and seat thin film heater

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JP2008041298A (en) * 2006-08-02 2008-02-21 Matsushita Electric Ind Co Ltd Flexible ptc heating body
US20120193948A1 (en) * 2011-01-27 2012-08-02 Liu Nin-He Heating cushion

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CN201805564U (en) * 2010-09-15 2011-04-20 陈克功 Electric heating cushion
CN103010057A (en) * 2011-09-21 2013-04-03 W.E.T.汽车系统股份公司 Method for providing heat to vehicular seat and device thereof
CN202679669U (en) * 2012-05-28 2013-01-16 武汉恒升电子有限公司 Inner membrane electric heating tube
CN204048857U (en) * 2014-06-27 2014-12-31 苏州原点工业设计有限公司 A kind of chair cushion
CN104354620A (en) * 2014-11-11 2015-02-18 廊坊市金色时光科技发展有限公司 Conductive heating film and seat thin film heater

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