Multi-layer heat conduction patch applied to new energy lithium battery

Abstract

The utility model discloses a multilayer heat-conducting patch applied to a new energy lithium battery, which relates to the technical field of heat-conducting patches and comprises a connecting base, a heat-conducting fin is arranged above the connecting base, and heat-conducting columns are arranged on two sides of the heat-conducting fin and at the top end of the connecting base. According to the multi-layer heat-conducting patch applied to the new energy lithium battery, the connecting base and the heat-conducting sheet are supported in an auxiliary mode through the first connecting column and the second connecting column, and when the heat-conducting sheet is pressed, first buffer blocks at the front end and the rear end of the bottom face of the heat-conducting sheet are inserted into the inner side of the connecting base; and second buffer blocks are arranged on the two sides of the bottom surface of the first buffer block and located on the inner side of the connecting base, so that secondary buffer is achieved through the first buffer block and the two second buffer blocks, the strength of the heat-conducting fin is improved, and the situation that the heat-conducting fin is damaged due to lack of a structural layer and low structural strength of used materials is effectively prevented. Consequently, the heat-conducting silica gel sheet is easy to damage and break when the heat-conducting silica gel sheet is used.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-layer heat-conducting patches applied to new energy lithium batteries, and specifically relates to a multi-layer heat-conducting patch applied to new energy lithium batteries. Background Technique

[0002] The silica gel sheet is transparent, soft but impermeable to water, and can keep the scar at a certain degree of temperature, humidity, pressure, oxygen content, etc. to soften the scar and prevent scar hyperplasia. However, there is a significant difference in the practical effects between the heat-conducting silica gel sheet and the ordinary silica gel sheet. The main function of the heat-conducting silica gel sheet is heat dissipation, and it also has properties such as moisture-proof, dust-proof, anti-corrosion, and shock-proof. The most important purpose is to reduce the contact thermal resistance generated between the surface of the heat source and the contact surface of the heat sink.

[0003] For example, patent number CN202221269060.X discloses a detachable heat-conducting silica gel sheet, which includes a fixing plate and a silica gel sheet. The silica gel sheet is located in the middle of the inner cavity of the fixing plate. A heat-conducting sheet is fixedly connected to the left side wall of the silica gel sheet, a first fixing block is fixedly connected to the left side wall of the heat-conducting sheet, a heat-conducting block is fixedly connected to the right side wall of the silica gel sheet, a second fixing block is fixedly connected to the right side wall of the heat-conducting block, threads are opened on the inner side walls of both the first fixing block and the second fixing block, a first screw is threadedly connected to the inner side wall of the first fixing block, a second screw is threadedly connected to the inner side wall of the second fixing block, and heat dissipation layers are fixedly connected to the top and bottom of the silica gel sheet. Through the first fixing block and the second fixing block, in cooperation with the first rotating block and the second rotating block, the silica gel sheet is screwed inside the fixing plate. Only by rotating the first rotating block and the second rotating block can the silica gel sheet be disassembled. The disassembly process is relatively simple, reducing the labor intensity of the user. And by increasing the heat-conducting sheet and the heat-conducting block, the heat conductivity of the heat-conducting silica gel sheet can be increased, the heat conduction effect is better, and the practical efficiency of the heat-conducting silica gel sheet is increased;

[0004] Due to the insufficient material used in most heat-conducting silica gel sheet materials and the lack of a reinforcing structure layer in the heat-conducting silica gel sheet in this patent, the structural strength of the existing heat-conducting silica gel sheet is low, resulting in damage to the heat-conducting silica gel sheet during the process of recycling use. At the same time, because the heat-conducting silica gel sheet only conducts heat unidirectionally through silica gel, the heat conduction efficiency of the heat-conducting silica gel sheet is low and it is not convenient to use. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the present utility model provides a multi-layer thermal conductive patch applied to new energy lithium batteries, which solves the problems that due to insufficient material usage of most thermal conductive silicone sheets and the lack of a reinforcing structure layer, the existing thermal conductive silicone sheets have low structural strength, resulting in damage during the recycling use of the thermal conductive silicone sheets. At the same time, since the thermal conductive silicone sheets only conduct unidirectional heat through silicone, the thermal conductivity of the thermal conductive silicone sheets is low, making them inconvenient to use.

[0006] To achieve the above objectives, the present utility model is realized through the following technical solutions: A multi-layer thermal conductive patch applied to new energy lithium batteries includes a connection base. Above the connection base is provided a thermal conductive sheet. On both sides of the thermal conductive sheet at the top of the connection base are provided thermal conductive columns. Both sides of the thermal conductive sheet extend to the inside of the thermal conductive columns. At the four ends of the bottom surface of the thermal conductive sheet are provided second connection columns. At the top of the inner wall of the connection base at the bottom ends of the second connection columns are provided first connection columns. The bottom ends of the second connection columns extend to the inside of the first connection columns. At the front and rear ends of the bottom surface of the thermal conductive sheet are provided first buffer blocks. The bottom ends of the first buffer blocks extend to the inside of the connection base.

[0007] Preferably, on both sides of the thermal conductive sheet are provided limit blocks. At one end of the limit block inside the thermal conductive column is provided a first connection column. One end of the limit block extends to the inside of the thermal conductive column. The thermal conductive sheet is movably connected to the thermal conductive column through the limit block.

[0008] Preferably, at the bottom end of the second connection column inside the first connection column is provided a slot. The bottom end of the second connection column extends to the inside of the slot. At the bottom end of the inner wall of the first connection column is provided a connection spring. The second connection column is movably connected to the first connection column through the connection spring.

[0009] Preferably, on both sides of the bottom surface of the first buffer block inside the connection base are provided second buffer blocks. The intersections of the first buffer block and the two second buffer blocks are all inclined surfaces. The first buffer block and the two second buffer blocks are attached through the inclined surfaces.

[0010] Preferably, at the rear end of the second buffer block inside the connection base is provided a buffer groove. The rear end of the second buffer block extends to the inside of the buffer groove. At one end of the inner wall of the buffer groove is provided a buffer spring. The second buffer block is movably connected to the buffer groove through the buffer spring.

[0011] Preferably, inside the thermal conductive sheet are successively provided a thermal conductive silicone layer, a thermal conductive aluminum sheet, a graphene thermal conductive sheet, and a thermal conductive base layer.

[0012] Preferably, at the bottom end of the connection base is provided an adhesive sticker.

[0013] Beneficial effects

[0014] The utility model provides a multi-layer heat conduction patch applied to new energy lithium batteries. Compared with the prior art, it has the following beneficial effects:

[0015] 1. A heat conduction sheet is arranged above the connection base, and heat conduction columns are arranged at the tops of both sides of the heat conduction sheet on the connection base. Both sides of the heat conduction sheet extend to the inner sides of the heat conduction columns. Therefore, while it is convenient for the connection base and the heat conduction sheet to be connected through the heat conduction columns, the connection base conducts heat to the heat conduction sheet through the heat conduction columns.

[0016] 2. The connection base and the heat conduction sheet are supported by a first connection column and a second connection column. When the heat conduction sheet is under pressure, the heat conduction sheet and the connection base are buffered at the first level through the first connection column and the second connection column. The first buffer blocks at the front and rear ends of the bottom surface of the heat conduction sheet are inserted into the inner side of the connection base, and second buffer blocks are arranged at both sides of the bottom surface of the first buffer block on the inner side of the connection base. The intersections of the first buffer block and the two second buffer blocks are inclined surfaces, and the first buffer block and the two second buffer blocks are attached through the inclined surfaces. Therefore, a secondary buffer is achieved through the first buffer block and the two second buffer blocks, improving the strength of the heat conduction sheet and effectively preventing the heat conduction silica gel sheet from being damaged or broken easily during use due to the lack of structural layers and the low structural strength of the materials used. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the whole of the utility model;

[0018] Figure 2 is of the utility model Figure 1 is an enlarged structural diagram of part A in the utility model;

[0019] Figure 3 is of the utility model Figure 1 is an enlarged structural diagram of part B in the utility model;

[0020] Figure 4 is an enlarged structural diagram of the first buffer block of the utility model.

[0021] In the figure: 1. Connection base; 2. Heat conduction sheet; 3. Heat conduction column; 4. First connection column; 5. Second connection column; 7. Limit block; 8. First buffer block; 9. Second buffer block; 10. Buffer groove. Specific Embodiment

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution: a multi-layer heat-conducting patch applied to a new energy lithium battery, which includes a connection base 1. A heat-conducting sheet 2 is provided above the connection base 1. Heat-conducting columns 3 are provided at both ends of the heat-conducting sheet 2 on the top end of the connection base 1. Both sides of the heat-conducting sheet 2 extend to the inside of the heat-conducting columns 3. Limiting blocks 7 are provided on both sides of the heat-conducting sheet 2. One end of the limiting block 7 is provided with a first connection column 4 inside the heat-conducting column 3. One end of the limiting block 7 extends to the inside of the heat-conducting column 3. The heat-conducting sheet 2 is movably connected to the heat-conducting column 3 through the limiting block 7, so as to facilitate the connection between the connection base 1 and the heat-conducting sheet 2 through the heat-conducting column 3;

[0024] At the four ends of the bottom surface of the heat-conducting sheet 2, second connecting columns 5 are provided. At the top ends of the inner walls of the connecting base 1, first connecting columns 4 are provided at the bottom ends of the second connecting columns 5. The bottom ends of the second connecting columns 5 extend to the inside of the first connecting columns 4. Inside the first connecting columns 4, slots are provided at the bottom ends of the second connecting columns 5. The bottom ends of the second connecting columns 5 extend to the inside of the slots. At the bottom ends of the inner walls of the first connecting columns 4, connecting springs are provided. The second connecting columns 5 are movably connected to the first connecting columns 4 through the connecting springs. At the front and rear ends of the bottom surface of the heat-conducting sheet 2, first buffer blocks 8 are provided. The bottom ends of the first buffer blocks 8 extend to the inside of the connecting base 1. On both sides of the bottom surface of the first buffer blocks 8 inside the connecting base 1, second buffer blocks 9 are provided. At the intersections of the first buffer blocks 8 and the two second buffer blocks 9, there are inclined surfaces. The first buffer blocks 8 and the two second buffer blocks 9 are attached through the inclined surfaces. At the rear ends of the second buffer blocks 9 inside the connecting base 1, buffer grooves 10 are provided. The rear ends of the second buffer blocks 9 extend to the inside of the buffer grooves 10. At one end of the inner wall of the buffer grooves 10, buffer springs are provided. The second buffer blocks 9 are movably connected to the buffer grooves 10 through the buffer springs. Thus, it is convenient to use the first connecting columns 4 and the second connecting columns 5 to assist in supporting the connecting base 1 and the heat-conducting sheet 2. When the heat-conducting sheet 2 is under pressure, the heat-conducting sheet 2 and the connecting base 1 are subjected to primary buffering through the first connecting columns 4 and the second connecting columns 5. The first buffer blocks 8 at the front and rear ends of the bottom surface of the heat-conducting sheet 2 are inserted into the inside of the connecting base 1. On both sides of the bottom surface of the first buffer blocks 8 inside the connecting base 1, second buffer blocks 9 are provided. At the intersections of the first buffer blocks 8 and the two second buffer blocks 9, there are inclined surfaces. The first buffer blocks 8 and the two second buffer blocks 9 are attached through the inclined surfaces. Thus, secondary buffering is achieved through the first buffer blocks 8 and the two second buffer blocks 9, improving the strength of the heat-conducting sheet 2 and effectively preventing situations such as damage and rupture of the heat-conducting silicone sheet due to the lack of structural layers and the low structural strength of the materials used during use;

[0025] Inside the heat-conducting sheet 2, a heat-conducting silicone layer, a heat-conducting aluminum sheet, a graphene heat-conducting sheet, and a heat-conducting base layer are successively provided. At the bottom end of the connecting base 1, an adhesive sticker is provided. Thus, the connecting base 1 is connected to the new energy battery. Through the heat-conducting silicone layer, the heat-conducting aluminum sheet, the graphene heat-conducting sheet, and the heat-conducting base layer successively provided inside the heat-conducting sheet 2, it is convenient to conduct heat through the heat-conducting sheet 2.

[0026] During operation, a heat conducting sheet 2 is provided above the connecting base 1. Heat conducting columns 3 are provided at both sides of the heat conducting sheet 2 at the top end of the connecting base 1. Both sides of the heat conducting sheet 2 extend to the inside of the heat conducting columns 3. Thus, while facilitating the connection between the connecting base 1 and the heat conducting sheet 2 through the heat conducting columns 3, the connecting base 1 conducts heat to the heat conducting sheet 2 through the heat conducting columns 3. Moreover, the connecting base 1 and the heat conducting sheet 2 are supported by a first connecting column 4 and a second connecting column 5. When the heat conducting sheet 2 is under pressure, a primary buffering is carried out between the heat conducting sheet 2 and the connecting base 1 through the first connecting column 4 and the second connecting column 5. The first buffer blocks 8 at the front and rear ends of the bottom surface of the heat conducting sheet 2 are inserted into the inside of the connecting base 1. Second buffer blocks 9 are provided at both sides of the bottom surface of the first buffer blocks 8 inside the connecting base 1. The intersections of the first buffer blocks 8 and the two second buffer blocks 9 are inclined planes. The first buffer blocks 8 are in contact with the two second buffer blocks 9 through the inclined planes. Thus, a secondary buffering is carried out through the first buffer blocks 8 and the two second buffer blocks 9 to improve the strength of the heat conducting sheet 2, effectively preventing the situation that the heat conducting silicone sheet is damaged or cracked during use due to the lack of structural layers and the low structural strength of the materials used.

[0027] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

Claims

1. A multi-layer thermal conductive patch applied to new energy lithium batteries, including a connection base, characterized in that: Above the connection base, there is a heat conduction sheet. On both sides of the heat conduction sheet, heat conduction columns are provided at the top end of the connection base. Both sides of the heat conduction sheet extend to the inside of the heat conduction columns. At the four ends of the bottom surface of the heat conduction sheet, second connection columns are provided. At the top end of the inner wall of the connection base at the bottom end of the second connection column, first connection columns are provided. The bottom end of the second connection column extends to the inside of the first connection column. At the front and rear ends of the bottom surface of the heat conduction sheet, first buffer blocks are provided. The bottom end of the first buffer block extends to the inside of the connection base.

2. The multi-layer heat conduction patch applied to the new energy lithium battery according to claim 1, wherein: On both sides of the heat conduction sheet, limit blocks are provided. At one end of the limit block, a first connection column is provided inside the heat conduction column. One end of the limit block extends to the inside of the heat conduction column. The heat conduction sheet is movably connected to the heat conduction column through the limit block.

3. The multi-layer heat conduction patch applied to a new energy lithium battery according to claim 1, wherein: At the bottom end of the second connection column, a slot is provided inside the first connection column. The bottom end of the second connection column extends to the inside of the slot. At the bottom end of the inner wall of the first connection column, a connection spring is provided. The second connection column is movably connected to the first connection column through the connection spring.

4. The multi-layer heat-conducting patch applied to a new energy lithium battery according to claim 1, wherein: On both sides of the bottom surface of the first buffer block, second buffer blocks are provided inside the connection base. The intersections of the first buffer block and the two second buffer blocks are all inclined surfaces. The first buffer block and the two second buffer blocks are attached through the inclined surfaces.

5. The multi-layer heat conduction patch applied to the new energy lithium battery according to claim 4, wherein: At the rear end of the second buffer block, a buffer groove is provided inside the connection base. The rear end of the second buffer block extends to the inside of the buffer groove. At one end of the inner wall of the buffer groove, a buffer spring is provided. The second buffer block is movably connected to the buffer groove through the buffer spring.

6. The multi-layer thermal conductive patch applied to a new energy lithium battery according to claim 1, wherein: Inside the heat conduction sheet, a heat conduction silicone layer, a heat conduction aluminum sheet, a graphene heat conduction sheet, and a heat conduction base layer are sequentially provided.

7. The multi-layer heat conduction patch applied to a new energy lithium battery according to claim 1, characterized in that: At the bottom end of the connection base, an adhesion sticker is provided.

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