Battery module temperature equalizing structure and battery module

Abstract

The utility model relates to the technical field of battery heat dissipation, in particular to a battery module temperature equalizing structure and a battery module, which comprises a battery tray (1), a heat conducting plate (2) is arranged on the battery tray (1); a battery cell (3) is arranged between every two adjacent heat conducting plates (2); two surfaces of the heat-conducting plate are in contact with the battery cell, and the tail part is bent to be in contact with the battery tray; when the temperature of the battery cell is high, heat is conducted to the battery tray through the heat conducting plate, and then the heat is released into air through the battery tray; if the heating values of the adjacent battery cells are inconsistent to cause temperature difference, the battery cells can be subjected to temperature equalization treatment through the heat conducting plate, so that the temperature difference of the battery cells is reduced; according to the device, the active heat dissipation function of the battery module at high temperature can be increased by using a small amount of cost, the temperature equalization function of the adjacent battery cells is also realized, and the discharge performance and the service life of the battery are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery heat dissipation, and particularly relates to a battery module temperature equalization structure and a battery module. BACKGROUND

[0002] At present, the A00-level pure electric market is booming, and each host manufacturer has corresponding vehicle models. Since the A00-level vehicle battery system has low power, the A00-level vehicle model basically does not have an active heat management system. In a high-temperature environment or under harsh conditions, the heat generated by the battery system cannot be released to the outside, which may cause the battery to overheat. Meanwhile, the heat dissipation rate of the middle part of the battery cell and the two sides of the battery cell is inconsistent, which may cause a large temperature difference and affect the discharge performance of the battery.

[0003] The applicant found, through retrieval, that the Chinese patent document with the publication number 116252609A disclosed a quick-change battery and a battery changing vehicle on June 13, 2023. The quick-change battery includes a plurality of battery packs arranged along the length direction of the battery changing vehicle. Each battery pack is provided with a plurality of locking members. Each battery pack is independently locked to the bottom of the vehicle body of the battery changing vehicle in the vertical direction through a T-shaped rotary locking manner. The device cannot solve the above technical problems.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide a battery module temperature equalization structure and a battery module capable of achieving battery module temperature equalization and active heat dissipation. SUMMARY

[0005] The application aims to provide a battery module temperature equalization structure and a battery module capable of achieving battery module temperature equalization and active heat dissipation.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: a battery module temperature equalization structure, comprising a battery tray; a heat conduction plate is arranged on the battery tray; a battery cell is arranged between adjacent heat conduction plates; the heat conduction plate comprises a side plate and a bottom plate; the battery cell is arranged on the bottom plate and abuts against the side plate.

[0007] The top of the bottom plate is provided with the battery cell; the bottom of the bottom plate is connected with the battery tray.

[0008] A limiting groove is arranged on the side plate; the battery cell is arranged in the limiting groove.

[0009] A plurality of limiting grooves are uniformly distributed on the side plate.

[0010] An included angle is arranged between the side plate and the bottom plate.

[0011] The heat conduction plate is an aluminum plate or a high-thermal-conductivity silica gel sheet; and the battery tray is an aluminum plate or a steel plate.

[0012] A battery module comprises a battery module uniform temperature structure.

[0013] The application has the advantages that a heat-conducting plate is arranged between adjacent battery cells, the heat-conducting plate is made of high-heat-conducting materials such as aluminum or high-heat-conducting silica gel, the side plates of the heat-conducting plate contact the battery cells on both sides, the tail part of the heat-conducting plate is bent to contact the battery tray, when the temperature of the battery cells is high, the heat is conducted to the battery tray through the heat-conducting plate, and then the heat is released to the air through the battery tray, and if the heat generated by adjacent battery cells is inconsistent, the temperature difference can be reduced by the heat-conducting plate.

[0014] The device can realize the functions of active heat dissipation of the battery module at high temperature and uniform temperature of adjacent battery cells at low cost, and has the effects of improving the discharge performance and service life of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0015] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings, in which:

[0016] Figure 1 FIG. 1 is a structural schematic view of the battery module uniform temperature structure and the battery module.

[0017] Figure 2 FIG. 2 is a bottom view of the battery module uniform temperature structure and the battery module.

[0018] The marks in the above figures are as follows:

[0019] The marks in the figures are as follows:

[0020] 1, battery tray,

[0021] 2, heat-conducting plate,

[0022] 3, battery cell,

[0023] 4, side plate,

[0024] 5, bottom plate,

[0025] 6, limiting groove. DETAILED DESCRIPTION

[0026] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings, in which:

[0027] Figure 1 The battery module uniform temperature structure shown comprises a battery tray 1, a heat-conducting plate 2 arranged on the battery tray 1, and battery cells 3 arranged between adjacent heat-conducting plates 2, wherein the heat-conducting plate 2 comprises a side plate 4 and a bottom plate 5, the battery cells 3 are arranged on the bottom plate 5 and abut against the side plate 4.

[0028] The heat-conducting plate 2 contacts the battery cell 3 on both sides, and the tail is bent to contact the battery tray 1; when the battery cell 3 is high in temperature, the heat is conducted to the battery tray 1 through the heat-conducting plate 2, and then the heat is released to the air through the battery tray 1; if the heat generated by adjacent battery cells 3 is inconsistent, resulting in temperature difference, the temperature of the battery cell 3 can be equalized through the heat-conducting plate 2, thereby reducing the temperature difference of the battery cell 3; the device can increase the active heat dissipation function of the battery module at high temperature with a small amount of cost, and has the function of equalizing the temperature of adjacent battery cells 3, which improves the discharge performance and service life of the battery; the side plate 4 and the bottom plate 5 are integrated; a plurality of battery cells 3 are arranged obliquely between adjacent side plates 4; the side plate 4 abuts against the side of the battery cell 3, providing side limiting for the battery cell 3 and transferring the heat of the battery cell 3 to the bottom plate 5; the bottom plate 5 provides stable support for the battery cell 3; at the same time, the bottom plate 5 transfers the heat to the battery tray 1, thereby realizing the active heat dissipation of the battery module; the side plate 4 can also equalize the temperature of the battery cells 3 on both sides, thereby reducing the temperature difference between the battery cells 3; and the discharge performance of the battery module is effectively ensured.

[0029] The top of the bottom plate 5 is provided with the battery cell 3; and the bottom of the bottom plate 5 is connected with the battery tray 1.

[0030] The bottom plate 5 and the tray 1 are made of high-thermal-conductivity material; the side plate 4 transfers the heat of the battery cell 3 to the bottom plate 5, the bottom plate 5 can transfer the heat to the battery tray 1, the battery tray 1 exchanges heat with the air, thereby realizing the active heat dissipation of the battery module.

[0031] The side plate 4 is provided with a limiting groove 6; and the battery cell 3 is arranged in the limiting groove 6.

[0032] The cross section of the side plate 4 is wavy; the battery cell 3 is cylindrical; the cross section of the limiting groove 6 is semicircular; the shape of the limiting groove 6 is matched with the side wall of the battery cell 3, which can limit the battery cell 3 in the horizontal direction, and can also increase the contact area of the battery cell 3 and the side plate 4, thereby improving the heat conduction effect.

[0033] A plurality of limiting grooves 6 are uniformly distributed on the side plate 4.

[0034] A plurality of battery cells 3 are arranged obliquely between adjacent side plates 4; the limiting groove 6 can limit a plurality of battery cells 3 at the same time, and can also ensure the heat conduction effect of the battery cell 3.

[0035] An included angle is arranged between the side plate 4 and the bottom plate 5.

[0036] The bottom plate 5 is arranged horizontally; the side plate 4 is arranged obliquely; the side plate 4 abuts against the side of the obliquely arranged battery cell 3; a plurality of battery cells 3 are arranged obliquely, which can avoid pressure concentration and damage the bottom battery cell 3; at the same time, the obliquely arranged battery cell 3 can increase the effective contact area of the battery cell 3 and the side plate 4, so that the side plate 4 can fully conduct heat to the battery cell 3.

[0037] The heat-conducting plate 2 is an aluminum plate or a high-thermal-conductivity silica gel sheet; and the battery tray 1 is an aluminum plate or a steel plate.

[0038] The heat-conducting plate 2 and the battery tray 1 can be aluminum plates, and aluminum has a relatively low price, a small density, a high strength, and is easy to process and form; aluminum has excellent heat-conducting performance and a high specific heat capacity, and can effectively regulate temperature when absorbing or releasing heat; the heat-conducting plate 2 can be a high-thermal-conductivity silica gel sheet, which has excellent heat-conducting performance and can effectively conduct heat; the high-thermal-conductivity silica gel sheet has elastomer properties after curing, can resist impact and vibration, and ensures mechanical stability; meanwhile, it also provides good electrical insulation performance, and is very suitable for thermal management of a battery module; and the battery tray 1 can be a steel plate, and steel has a high heat capacity, can quickly absorb and release heat, and has environmental protection, recyclability and durability.

[0039] A battery module comprises a battery module uniform temperature structure.

[0040] The specific working process of the utility model is as follows: the battery tray 1 and the heat-conducting plate 2 are made; the bottom plate 5 of the heat-conducting plate 2 is fixed on the top of the battery tray 1; a plurality of battery trays 1 are arranged on the battery tray 1; and the battery core 3 is installed between adjacent heat-conducting plates 2, and the battery core 3 is installed in the limiting groove 6 of the heat-conducting plate 2.

[0041] The above has been described by way of example with reference to the drawings. Obviously, the specific implementation of the present application is not limited to the above-mentioned manner. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the present application, or the above-mentioned concept and technical scheme of the present application are directly applied to other occasions without improvement, they are all within the protection scope of the present application.

Claims

1. A battery module uniform temperature structure, characterized by: The battery tray (1) is provided with a heat-conducting plate (2); adjacent heat-conducting plates (2) are provided with battery cells (3); the heat-conducting plate (2) comprises a side plate (4) and a bottom plate (5); the battery cell (3) is arranged on the bottom plate (5) and abuts against the side plate (4).

2. The battery module uniform temperature structure according to claim 1, characterized by: The top of the bottom plate (5) is provided with the battery cell (3); the bottom of the bottom plate (5) is connected with the battery tray (1).

3. A battery module uniform temperature structure according to claim 2, characterized by: The side plate (4) is provided with a limiting groove (6); the battery cell (3) is arranged in the limiting groove (6).

4. The battery module uniform temperature structure according to claim 3, characterized by: Multiple limiting grooves (6) are uniformly distributed on the side plate (4).

5. A battery module uniform temperature structure according to any one of claims 1 to 4, characterized in that: An included angle is arranged between the side plate (4) and the bottom plate (5).

6. A battery module uniform temperature structure according to claim 5, characterized by: The heat-conducting plate (2) is an aluminum plate or a high-thermal-conductivity silica gel sheet; the battery tray (1) is an aluminum plate or a steel plate.

7. A battery module, characterized by: The battery module uniform temperature structure comprises the battery module uniform temperature structure according to any one of claims 1-6.

Images