Heat dissipation structure of soft package battery

Abstract

The utility model discloses a heat dissipation structure of a soft package battery, which comprises a heat conducting plate and a heat dissipation box body, and a soft package battery cell module located in the heat dissipation box body conducts heat to the heat dissipation box body through the heat conducting plate so as to dissipate the heat; the heat conduction plate is located in the soft package battery cell module, the lower end of the heat conduction plate is provided with an extension plate located outside the soft package battery cell module, the space between the soft package battery cell module and the inner bottom of the heat dissipation box body is filled with a flexible heat conductor, and the extension plate extends into the space and is in heat conduction connection with the heat dissipation box body through the flexible heat conductor; and a heat dissipation structure is arranged at the outer bottom of the heat dissipation box body. According to the utility model, the heat conduction plate is clamped between the soft package battery cells to conduct heat in the battery to the heat dissipation box body with a heat dissipation structure for heat dissipation, so that the heat dissipation efficiency of the battery is improved, and the use safety of the soft package battery is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to soft package battery technical field especially relates to a soft package battery's heat radiation structure. BACKGROUND

[0002] The existing soft package battery's assembly structure mode is stacked and assembled, and the battery will heat up during the charging and discharging process. Based on the assembly mode of stacking, the heat in the soft package battery module is difficult to dissipate outward, which causes the soft package battery to be prone to overheating and damage. SUMMARY

[0003] The utility model discloses a soft package battery's heat radiation structure, which can conduct the heat in the battery to the heat radiation box with heat radiation structure through the heat conduction plate clamped between the soft package battery cells, thereby improving the heat dissipation efficiency of the battery.

[0004] Technical scheme: To achieve the above object, the utility model discloses a soft package battery's heat radiation structure, which comprises a heat conduction plate and a heat radiation box. The soft package battery cell module in the heat radiation box conducts heat to the heat radiation box through the heat conduction plate.

[0005] The heat conduction plate is located inside the soft package battery cell module, and the lower end has an extension plate located outside the soft package battery cell module. The space between the soft package battery cell module and the inner bottom of the heat radiation box is filled with a flexible heat conductor. The extension plate extends into the space and is connected to the heat radiation box through the flexible heat conductor. The outer bottom of the heat radiation box is provided with a heat radiation structure.

[0006] Further, the heat conduction plate is clamped between the soft package battery cells of the soft package battery cell module, and assembly holes are formed on the heat conduction plate.

[0007] Further, the extension plate extends horizontally.

[0008] Further, the heat conduction plate and the extension plate are an aluminum plate formed in one piece.

[0009] Further, the heat radiation box is provided with a module mounting seat, and the support of the soft package battery cell module is provided with a mounting plate. The mounting plate is fastened to the module mounting seat by screws, so that the space for filling the flexible heat conductor is formed between the bottom of the soft package battery cell module and the inner bottom of the heat radiation box.

[0010] Further, the flexible heat conductor is a high-thermal-conductivity flexible silica gel pad.

[0011] Further, the heat radiation box is part of the battery box of the soft package battery, and is an aluminum alloy box. The aluminum alloy box cooperates with the injection-molded box cover to form a battery box that wraps the soft package battery cell module.

[0012] Further, the heat dissipation structure comprises a heat dissipation air channel formed in the outer bottom surface of the heat dissipation box body, and the heat dissipation air channel extends in a curved structure track.

[0013] Further, the heat dissipation structure comprises a heat dissipation water channel formed in the outer bottom surface of the heat dissipation box body, and the heat dissipation water channel extends in a curved structure track.

[0014] Beneficial effects: the heat conduction plate is clamped between the soft package battery cells to conduct the internal heat of the battery to the heat dissipation box body with the heat dissipation structure, the heat conduction plate plays a heat conduction role from inside to outside relative to the soft package battery cell module, the heat is conducted to the flexible heat conductor and the heat dissipation box body, and then main heat dissipation is conducted through the heat dissipation structure, the heat dissipation box body also has the auxiliary heat dissipation function, so that the battery heat dissipation efficiency is improved, and the safety of the soft package battery is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the heat conduction plate, the heat dissipation box body, the flexible heat conductor and the soft package battery cell module.

[0016] Figure 2 It is a structure schematic view of the heat dissipation box body. DETAILED DESCRIPTION

[0017] The utility model will be further explained in connection with the drawings.

[0018] As shown in Figure 1 and Figure 2 A heat dissipation structure of a soft package battery, comprising a heat conduction plate 1 and a heat dissipation box body 2, a soft package battery cell module 3 located in the heat dissipation box body 2 conducts heat to the heat dissipation box body 2 through the heat conduction plate 1 and dissipates; more specifically, the heat conduction plate 1 is clamped between the soft package battery cells 30 of the soft package battery cell module 3, and the heat conduction plate 1 is provided with an assembly hole 10; the heat conduction plate 1 is located inside the soft package battery cell module 3, and the lower end has an extension plate 4 located outside the soft package battery cell module 3, the space between the soft package battery cell module 3 and the inner bottom of the heat dissipation box body 2 is filled with a flexible heat conductor 5, the extension plate 4 extends into the space and is connected with the heat dissipation box body 2 through the flexible heat conductor 5, and the outer bottom of the heat dissipation box body 2 is provided with a heat dissipation structure 8. The heat conduction plate 1 is clamped between the soft package battery cells 30 to conduct the internal heat of the battery to the heat dissipation box body 2 with the heat dissipation structure 8, wherein the heat conduction plate 1 plays a heat conduction role from inside to outside relative to the soft package battery cell module 3, conducts heat to the flexible heat conductor 5 and the heat dissipation box body 2, and then conducts main heat dissipation through the heat dissipation structure 8, the heat dissipation box body 2 also has the auxiliary heat dissipation function, so that the battery heat dissipation efficiency is improved, and the safety of the soft package battery is improved.

[0019] It is worth noting that the extension plate 4 extends horizontally to ensure that it can be in close contact with the flexible heat conductor 5, and then the flexible heat conductor 5 can conduct heat to the heat dissipation box 2 more fully.

[0020] In the utility model, as a kind of preferred, the heat conduction plate 1 and the extension plate 4 are integrally formed aluminum plate.

[0021] As shown in Figure 1 The heat dissipation box 2 is provided with a module mounting seat 6, and the support of the soft package battery cell module 3 is provided with a mounting plate 7 correspondingly, the mounting plate 7 is fastened with the module mounting seat 6 by screw, so that the bottom of the soft package battery cell module 3 and the inner bottom of the heat dissipation box 2 form the interval for the flexible heat conductor 5 to fill. The flexible heat conductor 5 is filled more fully due to its flexible physical properties, more specifically, the flexible heat conductor 5 is high-thermal-conductivity flexible silica gel pad, which is not only insulated but also has good heat conduction effect.

[0022] The heat dissipation box 2 belongs to a part of the battery box of soft package battery, and is an aluminum alloy box, which cooperates with an injection-molded box cover to form a battery box wrapping the soft package battery cell module 3.

[0023] In the utility model, the heat dissipation structure 8 provides two kinds of structural embodiments:

[0024] The first embodiment: the heat dissipation structure 8 includes a heat dissipation air duct opened in the outer bottom surface of the heat dissipation box 2, which extends in a curved structure track to realize air cooling heat dissipation.

[0025] The second embodiment: the heat dissipation structure 8 includes a heat dissipation water channel arranged on the outer bottom surface of the heat dissipation box 2, which extends in a curved structure track to realize water cooling heat dissipation.

[0026] The heat dissipation structure 8 as the main heat dissipation structure accelerates the heat dissipation of the battery and improves the heat dissipation efficiency.

[0027] The above is only the preferred embodiment of the utility model, it should be pointed out: for ordinary skilled person in the art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

Claims

1. A heat dissipation structure of a soft package battery, comprising a heat conduction plate (1) and a heat dissipation box body (2), a soft package battery cell module (3) seated in the heat dissipation box body (2) dissipates heat by conducting heat to the heat dissipation box body (2) through the heat conduction plate (1); characterized in that The heat conduction plate (1) is located inside the soft package battery cell module (3), and the lower end of the heat conduction plate (1) has an extension plate (4) located outside the soft package battery cell module (3), a flexible heat conductor (5) is filled in the space between the soft package battery cell module (3) and the inner bottom of the heat dissipation box body (2), the extension plate (4) extends into the space and is connected to the heat dissipation box body (2) through the flexible heat conductor (5) for heat conduction, and the outer bottom of the heat dissipation box body (2) is provided with a heat dissipation structure (8). 2.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: The heat conduction plate (1) is clamped between the soft package battery cells (30) of the soft package battery cell module (3), and assembly holes (10) are formed in the heat conduction plate (1). 3.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: The extension plate (4) extends horizontally. 4.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: The heat conduction plate (1) and the extension plate (4) are an aluminum plate formed in one piece. 5.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: A module mounting seat (6) is arranged in the heat dissipation box body (2), and a mounting plate (7) is arranged on the support of the soft package battery cell module (3), the mounting plate (7) is fastened to the module mounting seat (6) by screws, and the bottom of the soft package battery cell module (3) and the inner bottom of the heat dissipation box body (2) form the space for filling the flexible heat conductor (5). 6.The heat dissipation structure of a soft-pack battery according to claim 1 or 5, characterized in that: The flexible heat conductor (5) is a high-thermal-conductivity flexible silica gel pad. 7.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: The heat dissipation box body (2) is part of a battery box of the soft package battery, and is an aluminum alloy box body, which cooperates with an injection-molded box cover to form a battery box wrapping the soft package battery cell module (3). 8.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: The heat dissipation structure (8) comprises a heat dissipation air duct formed in the outer bottom surface of the heat dissipation box body (2), and the heat dissipation air duct extends in a curved structure track. 9.The heat dissipation structure of a soft-pack battery according to claim 1, characterized in that: The heat dissipation structure (8) comprises a heat dissipation water channel arranged on the outer bottom surface of the heat dissipation box body (2), and the heat dissipation water channel extends in a curved structure track.

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