Lithium battery support structure

Abstract

The utility model discloses a lithium battery support structure which comprises a shell and at least one lithium battery pack, the shell is provided with a containing cavity, and a fluid channel is longitudinally arranged between the lithium battery pack and the side wall of the shell or between adjacent lithium batteries. The front wall and the rear wall of the lithium battery pack are respectively provided with a first heat conduction support, and the first heat conduction supports are provided with first heat dissipation holes which are vertically arranged. The lithium battery pack is composed of a plurality of lithium battery individuals, a second heat conduction support is arranged between every two adjacent lithium battery individuals, each second heat conduction support is provided with a second heat dissipation hole which is transversely formed, and one end of each second heat dissipation hole is communicated with the fluid channel; a fan is arranged at the end, located on the fluid channel, of the shell and can drive fluid to flow along the second heat dissipation holes and the fluid channel. Through simple cooperation of the first heat conduction support and the second support, the structural stability between the lithium battery individuals can be improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery brackets, and in particular to a lithium battery bracket structure. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. In battery manufacturing, the requirements for stacking lithium-ion batteries are quite stringent, with heat dissipation being a key design consideration.

[0003] For example, Chinese patent 202410916618.6 uses a cold water pan structure, which improves the temperature control of lithium battery packs. However, this structure is expensive for ordinary lithium battery packs, which affects its widespread adoption. Utility Model Content

[0004] The main purpose of this invention is to propose a lithium battery support structure, which aims to effectively control the temperature of the lithium battery pack while ensuring the stability of the structure by setting horizontally arranged heat dissipation fins on the support and achieving heat dissipation through a wind-cooling structure.

[0005] To achieve the above objectives, this utility model proposes a lithium battery support structure, comprising:

[0006] The housing has a receiving cavity;

[0007] A lithium battery pack, wherein the lithium battery pack comprises at least one set, and a longitudinally arranged fluid channel is provided between the lithium battery pack and the side wall of the casing or between adjacent lithium batteries.

[0008] The front and rear walls of the lithium battery pack are respectively provided with a first heat-conducting bracket, and the first heat-conducting bracket is provided with a first heat dissipation hole arranged vertically.

[0009] The lithium battery pack is composed of multiple individual lithium batteries. A second heat-conducting bracket is provided between adjacent individual lithium batteries. The second heat-conducting bracket is provided with a second heat dissipation hole arranged horizontally. One end of the second heat dissipation hole is connected to a fluid channel.

[0010] The housing is equipped with a fan at the end of the fluid channel, which can drive the fluid to flow along the second heat dissipation hole and the fluid channel.

[0011] In practical design, the combination of a simple first heat-conducting bracket and a second bracket can improve the structural stability between individual lithium batteries. At the same time, it can also serve as a buffer structure, which facilitates product transportation. When the fan is turned on, if the casing is a sealed structure, the casing should have good heat dissipation. Multiple fluid channels and multiple fans can be set to form a circulating fluid inside the casing.

[0012] When the housing is a non-sealed structure, an air inlet and an air outlet can be set in the housing, and then the fan can drive the fluid to exchange heat between the hot fluid in the housing and the external fluid, thereby improving the applicability of the bracket.

[0013] The sealed structure can be used in outdoor and other fields, while the non-sealed structure can be used as an indoor energy storage structure, and can be set up according to different needs. Attached Figure Description

[0014] Figure 1 This is an exploded view of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present utility model. Figure 1 ;

[0016] Figure 3 This is a cross-sectional view of the present utility model. Figure 2 ;

[0017] Figure 4 This is a three-dimensional schematic diagram of the second heat-conducting support;

[0018] Figure 5 This is a three-dimensional schematic diagram of the present invention.

[0019] In the picture,

[0020] 1 represents the outer shell, and 10 represents the receiving cavity.

[0021] 2 represents the lithium battery pack, and 20 represents individual lithium batteries.

[0022] 31 is the first heat-conducting bracket, 31a is the first heat dissipation hole, and 31b is the first partition.

[0023] 32 is the second heat-conducting bracket, 32a is the second heat dissipation hole, and 32b is the second partition.

[0024] 4 represents the notch, and 40 represents the end plate.

[0025] 5 is a restraint belt.

[0026] 6 is the fan, 60 is the fluid channel, 61 is the air inlet, and 62 is the air outlet. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0028] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figures 1 to 5 As shown, a lithium battery support structure includes:

[0031] Housing 1, wherein housing 1 is provided with a receiving cavity 10;

[0032] The lithium battery pack 2 is provided with at least one set, and a longitudinally arranged fluid channel is provided between the lithium battery pack 2 and the side wall of the casing 1 or between adjacent lithium batteries.

[0033] The front and rear walls of the lithium battery pack 2 are respectively provided with a first heat-conducting bracket 31, and the first heat-conducting bracket 31 is provided with a first heat dissipation hole 31a arranged vertically.

[0034] The lithium battery pack 2 is composed of multiple lithium battery individuals 20. A second heat-conducting bracket 32 ​​is provided between adjacent lithium battery individuals 20. The second heat-conducting bracket 32 ​​is provided with a second heat dissipation hole 32a arranged horizontally. One end of the second heat dissipation hole is connected to a fluid channel.

[0035] The housing 1 is equipped with a fan 6 at the end of the fluid channel, which can drive the fluid to flow along the second heat dissipation hole and the fluid channel.

[0036] In the actual design, the structural stability between individual lithium battery units 20 can be improved by the simple combination of the first heat conduction bracket 31 and the second bracket. At the same time, it can also serve as a buffer structure to facilitate product transportation. When the fan is turned on, if the housing 1 is a sealed structure, the housing 1 should have good heat dissipation. Multiple fluid channels and multiple fans can be set to form a circulating fluid inside the housing 1.

[0037] When the housing 1 is a non-sealed structure, an air inlet and an air outlet can be set in the housing 1, and then the hot fluid in the housing 10 can be exchanged with the external fluid by the fan, thereby improving the applicability of the bracket.

[0038] The sealed structure can be used in outdoor and other fields, while the non-sealed structure can be used as an indoor energy storage structure, and can be set up according to different needs.

[0039] Specifically, the first heat-conducting bracket 31 and the second heat-conducting bracket are integrally formed. This structure is stable and provides a higher degree of fit with the lithium battery, effectively improving heat dissipation efficiency.

[0040] In this embodiment of the utility model, the first heat-conducting bracket 31 and the second heat-conducting bracket are respectively extruded from aluminum alloy. Through the integral molding structure, the burrs on the outer peripheral walls of the first heat-conducting bracket 31 and the second heat-conducting bracket can be reduced, and the structure is more stable. The aluminum alloy extrusion molding is an existing technology, such as the commonly used aluminum alloy door frame structure.

[0041] This structure can effectively reduce production costs while ensuring structural stability. Of course, CNC integrated machining can also be used, but the cost is higher. For example, copper has better thermal conductivity, so it is not suitable for aluminum extrusion molding.

[0042] Specifically, one end of the second heat dissipation hole is attached to the housing 1, the housing 1 is provided with an air inlet at the position of the second heat dissipation hole, and the end of the fan away from the fluid channel is provided with an air outlet, thereby realizing the circulation of fluid.

[0043] In this embodiment of the utility model, the first heat-conducting bracket 31 is provided with a vertically arranged first partition 31b, which can increase the heat-conducting area and at the same time improve the structural stability of the first heat-conducting bracket 31.

[0044] Specifically, the first partition 31b is inclined and the first partition 31b is connected end to end to form a triangular first heat dissipation hole 31a. The triangular first heat dissipation hole 31a can improve structural stability, thereby improving impact resistance and seismic resistance.

[0045] In this embodiment of the utility model, the second heat-conducting bracket is provided with a second partition 32b arranged horizontally. The second partition 32b and the second heat-conducting bracket form the second heat dissipation hole, thereby improving the heat dissipation area and structural stability.

[0046] Specifically, the surfaces of the first and second heat-conducting brackets that are in contact with the lithium battery individual 20 are smooth surfaces, thereby increasing the contact area and improving heat dissipation stability.

[0047] In this embodiment of the invention, the contact surfaces of the first thermally conductive bracket 31 and the lithium battery individual 20, and the contact surfaces of the second thermally conductive bracket and the lithium battery individual 20, are respectively provided with aerogel heat sinks or heat dissipation pads. (The heat sinks or heat dissipation pads can play a role in buffering and heat dissipation. Of course, thermal silicone can also be used, but it is not conducive to installation and is more difficult to maintain later.)

[0048] Specifically, the top of the first heat-conducting bracket is provided with a notch 4, which is used to install the end plate 40; the lithium battery individual 20, the first heat-conducting bracket and the second heat-conducting bracket are bound together by a binding strap 5 (e.g., a steel strap) to form the lithium battery pack 2. In the actual assembly end, each lithium battery pack 2 can be installed in the housing 1 respectively, and can be customized according to actual needs. For example, the number of lithium battery individuals 20 in the lithium battery pack 2 can be reduced and the number of lithium battery packs 2 can be increased, thus making it suitable for different scenarios.

[0049] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A lithium battery support structure, characterized in that, include: The housing has a receiving cavity; A lithium battery pack, wherein the lithium battery pack comprises at least one set, and a longitudinally arranged fluid channel is provided between the lithium battery pack and the side wall of the casing or between adjacent lithium batteries. The front and rear walls of the lithium battery pack are respectively provided with a first heat-conducting bracket, and the first heat-conducting bracket is provided with a first heat dissipation hole arranged vertically. The lithium battery pack is composed of multiple individual lithium batteries. A second heat-conducting bracket is provided between adjacent individual lithium batteries. The second heat-conducting bracket is provided with a second heat dissipation hole arranged horizontally. One end of the second heat dissipation hole is connected to a fluid channel. The housing is equipped with a fan at the end of the fluid channel, which can drive the fluid to flow along the second heat dissipation hole and the fluid channel.

2. The lithium battery support structure as described in claim 1, characterized in that: The first and second heat-conducting brackets are integrally formed.

3. The lithium battery support structure as described in claim 1, characterized in that: The first and second heat-conducting brackets are respectively extruded from aluminum alloy.

4. The lithium battery support structure as described in claim 1, characterized in that: One end of the second heat dissipation hole is attached to the housing, the housing is provided with an air inlet at the position of the second heat dissipation hole, and the end of the fan away from the fluid channel is provided with an air outlet.

5. The lithium battery support structure as described in claim 1, characterized in that: The first heat-conducting support is provided with a vertically arranged first partition.

6. The lithium battery support structure as described in claim 5, characterized in that: The first partition is inclined and the first partition is connected end to end to form a triangular heat dissipation hole.

7. The lithium battery support structure as described in claim 1, characterized in that: The second heat-conducting bracket is provided with a second partition plate arranged horizontally, and the second partition plate and the second heat-conducting bracket form the second heat dissipation hole.

8. The lithium battery support structure as described in claim 1, characterized in that: The surfaces of the first and second thermally conductive supports that are in contact with the lithium battery unit are smooth surfaces.

9. The lithium battery support structure as described in claim 1, characterized in that: The first thermally conductive bracket and the contact surface of the lithium battery individual are respectively provided with aerogel heat sink or heat dissipation pad.

10. The lithium battery support structure as described in claim 1, characterized in that: The top end of the first heat-conducting bracket is provided with a notch, which is used to install the end plate; The individual lithium battery, the first thermally conductive bracket, and the second thermally conductive bracket are bound together by straps to form the lithium battery pack.

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