Heating film with wear-resistant wire outlet position

Abstract

The utility model discloses a heating film with a wear-resistant wire outlet position. The heating film comprises a body, a PC film and a wire rod, a heating core is arranged on the upper surface of a lower insulating film in an overlapped mode, an upper insulating film is arranged on the upper surface of the heating core in an overlapped mode, a bonding layer is arranged on the lower surface of the lower insulating film in an overlapped mode, release paper is arranged on the lower surface of the bonding layer in an overlapped mode, and a PC film is arranged on the surface of a wire outlet position in an overlapped mode. According to the heating film with the structure, the wire rod is arranged on one side of the heating core and is in conduction connection with the heating core, the wire rod extends outwards from the wire outlet position, the wear resistance of the wire outlet position can be effectively enhanced through the PC film, in the using process, the PC film can be in direct contact with a metal piece on a battery module, the wire outlet position is not prone to being abraded, and the service life of the battery module is prolonged. The insulation performance of the insulation film can be guaranteed, the safety performance during use is improved, the heating film is prevented from being damaged, the overall performance of a product is improved, the quality of the product is improved, the service life of the product is prolonged, and existing requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of heating film technology, and in particular to a heating film with wear-resistant lead-out position. Background Technology

[0002] Currently, global energy and environmental problems are severe, and the development and utilization of new energy sources are receiving increasing attention, especially new energy electric vehicles in recent years. Major automakers are investing heavily in the development of new energy electric vehicles. The onboard energy system is one of the three core technologies of electric vehicles; it's like the engine of a traditional internal combustion engine—the heart of the electric vehicle and its sole power source. It accounts for one-third of the total cost of an electric vehicle.

[0003] The performance of batteries in new energy electric vehicles degrades significantly in low-temperature environments. To address this issue, heating films are typically installed on the sides or bottom of the battery module. The heating effect of these films improves battery performance, extends battery life, and enhances battery quality.

[0004] Current heating films typically consist of two insulating films stacked on the upper and lower surfaces of a heating core, with wire exit points. While this structure is simple and provides basic heating functionality, during use, the wire exit points come into direct contact with metal components in the battery module. As the vehicle moves, this friction between the wire exit points and the metal components, due to the thinness and poor wear resistance of the insulating films, easily leads to wear and tear. This results in insulation failure, posing a significant safety hazard, damaging the heating film, affecting overall product performance, and resulting in poor product quality, short lifespan, and failure to meet current requirements. Therefore, it is necessary to research a new technical solution to improve current heating films. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology by providing a heating film with wear-resistant cable outlets. This effectively solves the problem that existing heating films, during use, have cable outlets that come into direct contact with metal parts on the battery module. When the vehicle is in motion, the cable outlets and metal parts will generate relative friction. Because the insulating film is relatively thin and has poor wear resistance, the insulating film at the cable outlets is easily worn through, causing the insulating film to fail and posing a significant safety hazard. This damages the heating film, affects the overall performance of the product, and results in poor product quality and a short service life.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A heating film with a wear-resistant lead-out position includes a body, a PC film, and a wire. The body includes a heating film main body and a lead-out position extending outward from one side of the heating film main body. The body includes a lower insulating film, a heating core, an upper insulating film, an adhesive layer, and a release paper. The heating core is stacked on the upper surface of the lower insulating film, the upper insulating film is stacked on the upper surface of the heating core, the adhesive layer is stacked on the lower surface of the lower insulating film, and the release paper is stacked on the lower surface of the adhesive layer. The PC film is stacked on the surface of the lead-out position. The PC film has good wear resistance, impact resistance, aging resistance, high temperature resistance, flame retardancy, and weather resistance. The PC film has high tensile strength, high flexural strength, and high compressive strength. The PC film is lightweight and environmentally friendly. The wire is disposed on one side of the heating core and is electrically connected to the heating core. The wire extends outward from the lead-out position.

[0008] As a preferred embodiment, the outlet includes an outlet body and a connecting portion, and further comprises a silicone layer, which is stacked on the surface of the outlet body. The silicone material has good high temperature resistance and wear resistance. The PC film is stacked on the surface of the connecting portion. The wire is disposed between the outlet body and the silicone layer. The soft silicone layer can effectively protect the wire and the outlet body, and the PC film can effectively protect the connecting portion, thereby effectively enhancing the wear resistance of the product, improving the product quality, and extending the product's service life.

[0009] As a preferred embodiment, the main body and connecting part of the outlet are square, and correspondingly, the silicone layer and PC film are also square.

[0010] As a preferred embodiment, the lower insulating film includes a lower main body and a lower lead-out position, the heating core includes a middle main body and a middle lead-out position, and the upper insulating film includes an upper main body and an upper lead-out position. The lower main body, middle main body, and upper main body are stacked sequentially from bottom to top, and the lower lead-out position, middle lead-out position, and upper lead-out position are stacked sequentially from bottom to top. The adhesive layer is stacked on the lower surface of the lower main body, and the PC film is disposed on the surface of the lower lead-out position and / or the upper lead-out position.

[0011] As a preferred embodiment, a first positioning hole is formed through the upper and lower surfaces of the lower outlet, a second positioning hole is formed through the upper and lower surfaces of the middle outlet, a third positioning hole is formed through the upper and lower surfaces of the upper outlet, and a fourth positioning hole is formed through the upper and lower surfaces of the PC film. The first positioning hole, the second positioning hole, the third positioning hole, and the fourth positioning hole are connected and arranged in a continuous manner.

[0012] As a preferred embodiment, the lower insulating film is square, and correspondingly, the heating core, the upper insulating film, the adhesive layer, and the release paper are all square.

[0013] As a preferred embodiment, the heating element is an etched chip resistor formed by an etching process on a metal sheet.

[0014] As a preferred embodiment, the lower insulating film is a PI film.

[0015] As a preferred embodiment, the upper insulating film is a PI film.

[0016] As a preferred embodiment, the adhesive layer is a double-sided adhesive layer, which has good adhesion properties.

[0017] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0018] By stacking the heating core on the upper surface of the lower insulating film, stacking the upper insulating film on the upper surface of the heating core, stacking the adhesive layer on the lower surface of the lower insulating film, stacking the release paper on the lower surface of the adhesive layer, and stacking a PC film on the surface of the lead-out position, and placing the wire on one side of the heating core and making it conductively connected to the heating core, with the wire extending outward from the lead-out position, this heating film structure effectively enhances the wear resistance of the lead-out position through the PC film. During use, the PC film will directly contact the metal parts on the battery module, and the lead-out position is not easily worn through, ensuring the insulation performance of the insulating film, improving safety during use, preventing damage to the heating film, improving the overall performance of the product, improving product quality, extending product life, and meeting current needs.

[0019] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of a preferred embodiment of the present invention;

[0022] Figure 3 This is an exploded view of a preferred embodiment of the present invention.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. Body 11. Lower insulating film

[0025] 111. Lower main body 112. Lower exit point

[0026] 1121, First positioning hole; 12, Heating core

[0027] 121. Main body of the middle section; 122. Middle exit position.

[0028] 1221, Second positioning hole; 13, Upper insulating film

[0029] 131. Upper main body 132. Upper exit point

[0030] 1321, Third positioning hole; 14, Adhesive layer

[0031] 15. Release paper 101. Heating film body

[0032] 102. Qualifying Position 1021. Qualifying Position Main Body

[0033] 1022, Connecting part; 1023, Positioning hole

[0034] 20. PC film; 21. Fourth positioning hole

[0035] 30. Wire; 40. Silicone layer. Detailed Implementation

[0036] Please refer to Figures 1 to 3 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a body 10, a PC film 20, and a wire 30.

[0037] The body 10 includes a heating film body 101 and a wire outlet 102 extending outward from one side of the heating film body 101. The body 10 includes a lower insulating film 11, a heating core 12, an upper insulating film 13, an adhesive layer 14, and a release paper 15. The heating core 12 is stacked on the upper surface of the lower insulating film 11, the upper insulating film 13 is stacked on the upper surface of the heating core 12, the adhesive layer 14 is stacked on the lower surface of the lower insulating film 11, and the release paper 15 is stacked on the lower surface of the adhesive layer 14. In this embodiment, the wire outlet 102 includes a wire outlet body 1021 and a connecting portion 1022. Specifically, the wire outlet body 1021 and the connecting portion 1022 are square.

[0038] In this embodiment, the lower insulating film 11 includes a lower main body 111 and a lower wire outlet 112, the heating core 12 includes a middle main body 121 and a middle wire outlet 122, and the upper insulating film 13 includes an upper main body 131 and an upper wire outlet 132. The lower main body 111, the middle main body 121, and the upper main body 131 are stacked sequentially from bottom to top, and the lower wire outlet 112, the middle wire outlet 122, and the upper wire outlet 132 are stacked sequentially from bottom to top. The adhesive layer 14 is stacked on the lower surface of the lower main body 111. A first positioning hole 1121 is formed through the upper and lower surfaces of the lower wire outlet 112, a second positioning hole 1221 is formed through the upper and lower surfaces of the middle wire outlet 122, and a third positioning hole 1321 is formed through the upper and lower surfaces of the upper wire outlet 132. The third positioning hole 1321 communicates with the second positioning hole 1221 and the first positioning hole 1121.

[0039] In this embodiment, the lower insulating film 11 is square, and correspondingly, the heating core 12, the upper insulating film 13, the adhesive layer 14, and the release paper 15 are all square; the heating core 12 is an etched chip resistor formed by etching on a metal sheet; the lower insulating film 11 and the upper insulating film 13 are both PI films; the adhesive layer 14 is a double-sided adhesive layer with good adhesion properties.

[0040] The PC film 20 is laminated on the surface of the outlet position 102. The PC film 20 has good wear resistance, impact resistance, aging resistance, high temperature resistance, flame retardancy, and weather resistance. It also has high tensile strength, high flexural strength, and high compressive strength. The PC film 20 is lightweight and environmentally friendly. In this embodiment, a silicone layer 40 is further provided, which is laminated on the surface of the outlet position body 1021. The silicone material has good high temperature resistance and wear resistance. The PC film 20 is laminated on the surface of the connecting portion 1022. In this embodiment, the PC film 20 is laminated on the connecting portion 1022. The lower surface of 22; the silicone layer 40 and the PC film 20 are square; the PC film 20 is disposed on the surface of the lower outlet position 112 and / or the upper outlet position 132. In this embodiment, the PC film 20 is disposed on the surface of the lower outlet position 112; a fourth positioning hole 21 is formed through the upper and lower surfaces of the PC film 20. The fourth positioning hole 21 is connected to the first positioning hole 1121, the second positioning hole 1221, and the third positioning hole 1321. The fourth positioning hole 21 is connected to the first positioning hole 1121, the second positioning hole 1221, and the third positioning hole 1321 to form a positioning hole 1023 for positioning with external parts.

[0041] The wire 30 is disposed on one side of the heating core 12 and is electrically connected to the heating core 12. The wire 30 extends outward from the outlet position 102. In this embodiment, the wire 30 is disposed between the outlet position body 1021 and the silicone layer 40.

[0042] The manufacturing process of this embodiment is described in detail below:

[0043] First, prepare the lower insulating film 11, heating core 12, upper insulating film 13, double-sided tape, PC film 20, wire 30, and silicone layer 40. Next, solder the wire 30 to the heating core 12 to make them conductive. Then, stack the upper insulating film 13 and the lower insulating film 11 on the upper and lower surfaces of the heating core 12, and then attach the double-sided tape to the lower surface of the lower insulating film 11 to obtain the adhesive layer 14 and the release paper 15. Finally, stack the silicone layer 40 on the surface of the wire outlet body 1021, stack the PC film 20 on the surface of the connecting part 1022, and punch the positioning hole 1023 on the wire outlet 102 with a machine.

[0044] In use, peel off the release paper 15, place the heating film on both sides or the bottom of the battery module, and bend the main body 1021 and the connecting part 1022 at a certain angle before installation to cooperate with the external battery module; fix the heating film to the battery module with bolts or pins through the positioning holes 1023, and connect the wire 30 to the external circuit; the heating film heats the battery module, so that the battery module will not work at low temperature, effectively improving the performance of the battery module.

[0045] During use, the PC film 20 on the connector 1022 will come into direct contact with the metal parts on the battery module. The PC film 20 greatly enhances the wear resistance of the connector 1022, making the heating film less prone to wear and tear, improving product quality, extending product lifespan, and enhancing safety performance during use.

[0046] The key design feature of this utility model is:

[0047] By stacking the heating core on the upper surface of the lower insulating film, stacking the upper insulating film on the upper surface of the heating core, stacking the adhesive layer on the lower surface of the lower insulating film, stacking the release paper on the lower surface of the adhesive layer, and stacking a PC film on the surface of the lead-out position, and placing the wire on one side of the heating core and making it conductively connected to the heating core, with the wire extending outward from the lead-out position, this heating film structure effectively enhances the wear resistance of the lead-out position through the PC film. During use, the PC film will directly contact the metal parts on the battery module, and the lead-out position is not easily worn through, ensuring the insulation performance of the insulating film, improving safety during use, preventing damage to the heating film, improving the overall performance of the product, improving product quality, extending product life, and meeting current needs.

[0048] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A heating film with a wear-resistant lead-out position, characterized in that: The device includes a body, a PC film, and a wire. The body includes a heating film body and a wire outlet extending outward from one side of the heating film body. The body includes a lower insulating film, a heating core, an upper insulating film, an adhesive layer, and a release paper. The heating core is stacked on the upper surface of the lower insulating film, the upper insulating film is stacked on the upper surface of the heating core, the adhesive layer is stacked on the lower surface of the lower insulating film, and the release paper is stacked on the lower surface of the adhesive layer. The PC film is stacked on the surface of the wire outlet. The wire is disposed on one side of the heating core and is electrically connected to the heating core. The wire extends outward from the wire outlet.

2. The heating film with wear-resistant outlet as described in claim 1, characterized in that: The outlet includes an outlet body and a connecting part, and is further provided with a silicone layer. The silicone layer is stacked on the surface of the outlet body, the PC film is stacked on the surface of the connecting part, and the wire is disposed between the outlet body and the silicone layer.

3. The heating film with wear-resistant lead-out position according to claim 2, characterized in that: The main body and connecting part of the outlet are square, and correspondingly, the silicone layer and PC film are also square.

4. The heating film with wear-resistant lead-out position according to claim 1, characterized in that: The lower insulating film includes a lower main body and a lower lead-out position, the heating core includes a middle main body and a middle lead-out position, and the upper insulating film includes an upper main body and an upper lead-out position. The lower main body, middle main body, and upper main body are stacked sequentially from bottom to top, and the lower lead-out position, middle lead-out position, and upper lead-out position are stacked sequentially from bottom to top. The adhesive layer is stacked on the lower surface of the lower main body, and the PC film is disposed on the surface of the lower lead-out position and / or the upper lead-out position.

5. The heating film with wear-resistant lead-out position according to claim 4, characterized in that: The upper and lower surfaces of the lower outlet have a first positioning hole, the upper and lower surfaces of the middle outlet have a second positioning hole, the upper and lower surfaces of the upper outlet have a third positioning hole, and the upper and lower surfaces of the PC film have a fourth positioning hole. The first, second, third, and fourth positioning holes are connected to each other.

6. The heating film with wear-resistant lead-out position according to claim 1, characterized in that: The lower insulating film is square, and correspondingly, the heating core, upper insulating film, adhesive layer, and release paper are all square.

7. The heating film with wear-resistant lead-out position according to claim 1, characterized in that: The heating element is an etched chip resistor formed by etching a metal sheet.

8. The heating film with wear-resistant lead-out position according to claim 1, characterized in that: The lower insulating film is a PI film.

9. The heating film with wear-resistant lead-out position according to claim 1, characterized in that: The upper insulating film is a PI film.

10. The heating film with a wear-resistant lead-out position according to claim 1, characterized in that: The adhesive layer is a double-sided adhesive layer.

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