Automobile seat heating cushion and automobile

Abstract

The utility model discloses an automobile seat heating pad and an automobile, the heating pad comprises a flexible insulation substrate, a first conductive electrode, a second conductive electrode and a heating assembly, the first conductive electrode and the second conductive electrode are arranged at an interval, the heating assembly is arranged between the first conductive electrode and the second conductive electrode, and the flexible insulation substrate is arranged on the flexible insulation substrate. The first conductive electrode and the second conductive electrode are connected in series; the first conductive electrode and the second conductive electrode have the same structure and respectively comprise a silver paste electrode and a metal net, the silver paste electrode is formed on the flexible insulating substrate through silk-screen printing, and the metal net is adhered to the silver paste electrode through a conductive adhesive. The metal net is pasted on the silver paste electrode to form the conductive electrode, so that the strength and the toughness of the conductive electrode are greatly enhanced, the fatigue resistance of the conductive electrode at the seat foaming through groove is enhanced, and the phenomenon of local hot spots caused by local falling of silver paste on the conductive electrode or tearing of a copper foil electrode is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automobile seat, especially an automobile seat heating pad and automobile. BACKGROUND

[0002] The existing automobile seat generally configures heating function, and its heating principle is that the seat heating module controls the current of the heating pad, the heating pad generates heat, the temperature of the seat is increased, and the passenger feels more warm and comfortable when riding in the low temperature climate.

[0003] The current graphene or carbon film seat heating pad generally adopts the mode of coating graphene coating (or heating carbon paste coating) on cloth and printing silver paste electrode to heat or adopts the mode of graphene film or carbon film plus copper foil electrode to heat. The graphene (or heating carbon paste or heating carbon film) seat heating pad has the advantages of fast heating speed and high electric energy utilization rate. However, the related heating pad adopting the printed silver paste electrode or the copper foil electrode has poor fatigue resistance of the electrode at the seat foaming groove, is prone to the phenomenon of local silver paste falling off or copper foil electrode tearing, is prone to local hot spot when the heating pad is in the working state, and even causes burns and burns the seat in the extreme case. SUMMARY

[0004] In view of the above technical problems, the utility model provides an automobile seat heating pad and automobile, which forms a conductive electrode by pasting a metal mesh on the silver paste electrode, greatly enhances the strength and toughness of the conductive electrode, thereby enhancing the fatigue resistance of the conductive electrode at the seat foaming groove, and avoiding the local hot spot phenomenon caused by the local silver paste falling off or copper foil electrode tearing of the conductive electrode.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] An automobile seat heating pad, comprising: a flexible insulating base, a first conductive electrode, a second conductive electrode and a heating assembly, the first conductive electrode and the second conductive electrode are arranged at intervals, the heating assembly is arranged between the first conductive electrode and the second conductive electrode, and is connected in series with the first conductive electrode and the second conductive electrode.

[0007] The first conductive electrode and the second conductive electrode are the same in structure and each comprise a silver paste electrode and a metal mesh, the silver paste electrode is formed by screen printing on the flexible insulating base, and the metal mesh is pasted on the silver paste electrode by conductive glue.

[0008] In one preferred embodiment, the metal mesh is a metal mesh woven by metal wires.

[0009] In one preferred embodiment, the heating assembly comprises a plurality of heating units connected in parallel, and the heating units have the same heating power density.

[0010] In one preferred embodiment, the heating unit comprises a first heating electrode, a second heating electrode and a conductive paste coated between the first heating electrode and the second heating electrode arranged in parallel, the first heating electrode and the first conductive electrode are electrically connected, and the second heating electrode and the second conductive electrode are electrically connected.

[0011] In one preferred embodiment, the distance between the first heating electrode and the second heating electrode of the heating unit is in a decreasing relationship with the distance between the corresponding heating unit and the power input end.

[0012] In one preferred embodiment, the conductive paste is selected from a heating carbon paste or a graphene paste.

[0013] In one preferred embodiment, the metal mesh is selected from a copper mesh, a gold mesh or a silver mesh.

[0014] In one preferred embodiment, the flexible insulating substrate is a flexible cloth.

[0015] In one preferred embodiment, the middle part of the flexible insulating substrate has a groove, the first conductive electrode is arranged around the outer contour of the flexible insulating substrate, and the second conductive electrode is arranged around the outer contour of the groove.

[0016] In one preferred embodiment, the automobile seat heating pad is a cushion heating pad or a backrest heating pad.

[0017] In one preferred embodiment, an insulating protective layer is further attached to the heating assembly.

[0018] An automobile comprising the automobile seat heating pad of any of the above embodiments.

[0019] The utility model discloses the following advantages and positive effects compared with the prior art by adopting the above technical scheme:

[0020] The utility model discloses the printing silver paste electrode and the metal mesh that pastes on the printing silver paste electrode constitute conductive electrode, strengthen the strength and tenacity of conductive electrode, thereby greatly enhance the fatigue resistance of conductive main electrode at the seat foaming groove, further avoid the local hot spot phenomenon that silver paste on conductive main electrode falls off or copper foil electrode tears produces. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1The schematic view of the automobile seat heating pad of the embodiment of the present application;

[0022] Figure 2 For Figure 1 The enlarged view of the part C;

[0023] Figure 3 For Figure 1 The sectional view of the part A-A;

[0024] Figure 4 For Figure 1 The enlarged view of the part D;

[0025] Figure 5 For Figure 1 The sectional view of the part B-B.

[0026] The figure mark explanation: 1-the first conductive electrode; 2-the second conductive electrode; 3-the silver paste electrode; 4-the metal net; 5-the conductive glue; 6-the flexible insulating base; 7-the heating assembly; 71-the heating unit, 711-the first heating electrode; 712 the second heating electrode; 713-the conductive paste; 8-the insulating protective layer; 9-the insulating glue; 10-the groove. DETAILED DESCRIPTION

[0027] The automobile seat heating pad and automobile according to the present application are further described in detail below in combination with the drawings and specific embodiments. The same or similar reference signs represent the same or similar parts. The following description of the present application with reference to the drawings is intended to explain the overall general inventive concept of the present application and should not be understood as a limitation of the present application.

[0028] According to the overall concept of the present application, an automobile seat heating pad is provided, comprising: a flexible insulating base, a first conductive electrode, a second conductive electrode and a heating assembly, the first conductive electrode and the second conductive electrode are arranged apart from each other, the heating assembly is arranged between the first conductive electrode and the second conductive electrode and is connected in series with the first conductive electrode and the second conductive electrode; the first conductive electrode and the second conductive electrode are respectively connected to the positive and negative electrodes controlled by a heating module, and the heating assembly works to generate heat.

[0029] The first conductive electrode and the second conductive electrode are of the same structure and each comprise a silver paste electrode and a metal net, the silver paste electrode is formed by screen printing on the flexible insulating base, and the metal net is adhered to the silver paste electrode by conductive glue.

[0030] The heating assembly comprises a plurality of heating components with the same heating power density, so that the heating of the entire heating pad heating area is uniform.

[0031] In addition, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It will be apparent, however, that one or more embodiments can be practiced without these specific details.

[0032] Referring to Figure 1 , a car seat heating pad of an embodiment of the present application is schematically shown, which comprises a flexible insulating base 6, a first conductive electrode 1, a second conductive electrode 2 and a heating assembly 7. The first conductive electrode 1 can be a conductive positive electrode or a conductive negative electrode, and the second conductive electrode 2 can also be a conductive positive electrode or a conductive negative electrode. When the first conductive electrode is a conductive positive electrode, the second conductive electrode is a conductive negative electrode, and when the first conductive electrode is a conductive negative electrode, the second conductive electrode is a conductive positive electrode. The electrical properties of the first conductive electrode 1 and the second conductive electrode 2 are not limited herein.

[0033] The first conductive electrode 1 and the second conductive electrode 2 are arranged apart from each other, and the heating assembly 7 is arranged between the first conductive electrode 1 and the second conductive electrode 2 and is connected in series with the first conductive electrode 1 and the second conductive electrode 2.

[0034] Specifically, as shown in Figures 1-3 , the first conductive electrode 1 and the second conductive electrode 2 have the same structure and each comprise a silver paste electrode 3 and a metal mesh 4. The silver paste electrode 3 is formed by screen printing on the flexible insulating base 6, and the metal mesh 4 is adhered to the silver paste electrode 3 by conductive adhesive 5.

[0035] The power input end is connected to the first conductive electrode 1 and the second conductive electrode 2, respectively. By inputting current to the heating assembly 7, heat is generated in the area of the heating assembly 7, thereby increasing the temperature of the seat. The heating pad of the present embodiment can be used as a cushion heating pad or a backrest heating pad, and is not limited herein.

[0036] In the present embodiment, the silver paste electrode 3 is obtained by screen printing silver paste on the flexible insulating base 6, and then the metal mesh 4 is adhered to the silver paste electrode 3 to form the first conductive electrode 1 and the second conductive electrode 2. Since the metal mesh 4 has strong toughness, the toughness of the first conductive electrode 1 and the second conductive electrode 2 is greatly enhanced, thereby increasing the fatigue resistance and the fatigue resistance of the heating blanket at the foaming groove of the seat, and further avoiding the problem of local hot spots caused by the local shedding of silver paste or the tearing of copper foil electrode on the conductive main electrode. Even if a single metal wire in the metal mesh 4 breaks, since a mesh product is used on the conductive electrode, local hot spot phenomenon will not occur. Considering the conductivity and the plastic deformation ability of the metal, the metal mesh 4 is preferably a copper mesh, a gold mesh or a silver mesh, and considering the economy, the copper mesh is further preferred.

[0037] Further, the metal mesh 4 is a metal mesh 4 woven by metal wires in the warp and weft directions, so as to further enhance the strength of the conductive electrode; the metal mesh 4 is adhered to the silver paste electrode 3 by the conductive adhesive 5, to form a conductive electrode with the metal mesh 4 + the silver paste electrode 3.

[0038] Preferably, the flexible insulating substrate 6 is a flexible cloth, which can be a cloth special for printed circuits.

[0039] Due to the irregular shape of the automobile seat or backrest, it is difficult to achieve uniform heating, especially the related heating pads using the printed silver paste electrode 3 or using the copper foil electrode, in the state of energized heating, because of the voltage division effect of the silver paste electrode 3 or the copper foil electrode, the heating power per unit area of the heating area close to the power input end is greater than that of the heating area far from the power input end, and the entire heating pad surface cannot be uniformly heated. Therefore, in some embodiments, as shown in FIGS. 1 and 2, the heating assembly 7 includes a plurality of parallelly connected heating units 71, and the heating power density of each heating unit 71 is the same, so as to achieve uniform heating of each heating unit 71, thereby achieving uniform heating of the heating pad. Figure 1 and Figures 4-5 As shown in FIGS. 1 and 2, the heating assembly 7 includes a plurality of parallelly connected heating units 71, and the heating power density of each heating unit 71 is the same, so as to achieve uniform heating of each heating unit 71, thereby achieving uniform heating of the heating pad.

[0040] Specifically, the heating unit 71 includes a first heating electrode 711, a second heating electrode 712, and a conductive paste 713 coated between the parallelly arranged first heating electrode 711 and second heating electrode 712, the first heating electrode 711 is electrically connected to the first conductive electrode 1, and the second heating electrode 712 is electrically connected to the second conductive electrode 2.

[0041] Here, the first heating electrode 711 can be a heating positive electrode or a heating negative electrode, and the second heating electrode 712 can be a heating negative electrode or a heating positive electrode, the principle is that each heating unit 71 is electrically connected to the conductive electrode to form a series circuit, and a plurality of heating units 71 are connected in parallel. Assuming that the first conductive electrode 1 is a conductive positive electrode and the second conductive electrode 2 is a conductive negative electrode, the first heating electrode 711 is a heating positive electrode and the second heating electrode 712 is a heating negative electrode, the first conductive electrode 1 is electrically connected to the first heating electrode 711, and the second conductive electrode 2 is electrically connected to the second heating electrode 712. In order to keep the heating power density of each heating unit 71 the same, the spacing between the first heating electrode 711 and the second heating electrode 712 in each heating unit 71 can be adjusted accordingly.

[0042] Further preferably, it is found through analysis that the heating power per unit area of the heating area close to the power input end is greater than the heating power per unit area of the heating area far from the power input end, and therefore, in order to ensure the consistency of the heating power per unit area of each heating unit 71, the distance between the first heating electrode 711 and the second heating electrode 712 of the heating unit 71 is in a decreasing relationship with the distance between the corresponding heating unit 71 and the power input end, so that the shorter the distance between the heating unit 71 and the power input end, the greater the distance between the first heating electrode 711 and the second heating electrode 712, and vice versa.

[0043] Preferably, the conductive paste 713 is selected from a heating carbon paste or a graphene paste.

[0044] Further preferably, an insulating protective layer 8 is also attached on the area of the heating assembly 7, and the insulating protective layer 8 can be the same material as the flexible insulating base 6 or a non-woven fabric, and is attached on the insulating heating assembly 7 through an insulating adhesive 9 (hot melt adhesive or double-sided adhesive) to form the insulating protection.

[0045] In some embodiments, as shown in Figure 1 The flexible insulating base 6 has a groove 10 in the middle, the first conductive electrode 1 is arranged around the contour of the flexible insulating base 6, the second conductive electrode 2 is arranged around the contour of the groove 10, and the heating assembly 7 is arranged between the first conductive electrode 1 and the second conductive electrode 2.

[0046] The first conductive electrode 1 and the second conductive electrode 2 are respectively connected to the heating positive and the heating negative controlled by the heating module, and each heating unit 71 starts to work, and since the heating power per unit area of each heating unit 71 is consistent, the heating of the entire heating pad heating area is uniform.

[0047] Based on the same inventive concept, the present application also provides a car including the car seat heating pad of any of the above embodiments.

[0048] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above embodiments. Even if various changes are made to the present application, if the changes fall within the scope of the claims of the present application and equivalent technologies thereof, they still fall within the protection scope of the present application.

Claims

1. An automotive seat heating mat, characterized by, The automobile seat heating pad comprises a flexible insulating base, a first conductive electrode, a second conductive electrode and a heating assembly, the first conductive electrode and the second conductive electrode are arranged at intervals, and the heating assembly is arranged between the first conductive electrode and the second conductive electrode and connected in series with the first conductive electrode and the second conductive electrode. The first conductive electrode and the second conductive electrode are structurally identical and each comprises a silver paste electrode and a metal mesh, the silver paste electrode is formed by screen printing on the flexible insulating base, and the metal mesh is adhered to the silver paste electrode by conductive adhesive. The metal mesh is a metal mesh woven by metal wires.

2. The automotive seat heating mat of claim 1, wherein, The heating assembly comprises a plurality of parallelly connected heating units, and the heating power densities of the heating units are the same.

3. The automotive seat heating mat of claim 1, wherein, The heating unit comprises a first heating electrode, a second heating electrode and conductive paste, the conductive paste is coated between the parallelly arranged first heating electrode and second heating electrode, the first heating electrode is electrically connected with the first conductive electrode, and the second heating electrode is electrically connected with the second conductive electrode.

4. The automotive seat heating mat of claim 3, wherein, The distance between the first heating electrode and the second heating electrode of the heating unit and the distance between the corresponding heating unit and the power input end are in a decreasing relationship.

5. The automotive seat heating mat of claim 4, wherein, The conductive paste is selected from heating carbon paste or graphene paste.

6. The automotive seat heating mat of claim 4, wherein, The metal mesh is selected from copper mesh, gold mesh or silver mesh.

7. The automotive seat heating mat of claim 1, wherein, The flexible insulating base is flexible cloth.

8. The automotive seat heating mat of claim 1, wherein, The middle part of the flexible insulating base has a groove, the first conductive electrode is arranged around the outer contour of the flexible insulating base, and the second conductive electrode is arranged around the outer contour of the groove.

9. The automotive seat heating mat of claim 1, wherein, The automobile seat heating pad is a cushion heating pad or a backrest heating pad.

10. The automotive seat heating mat of claim 1, wherein, An insulating protective layer is further adhered to the heating assembly.

11. The automotive seat heating mat of claim 1, wherein, The automobile seat heating pad comprises the automobile seat heating pad according to any one of claims 1-11.

12. An automobile characterized by comprising: ​

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