Liquid cooling heat dissipation battery box structure

Abstract

The invention relates to a liquid cooling heat dissipation battery box structure which comprises a box body, a box cover, a supporting fence and a plurality of single batteries, the supporting fence and the battery monomers are arranged in the box body, and the supporting fence is propped against the bottom surface of the box body; the box cover covers the top of the box body; the supporting fence comprises a plurality of cavity units, and the single batteries are arranged on the cavity units; adjacent cavity units are arranged in a communicating mode through communicating holes, and the communicating holes are arranged close to the bottom face of the box body. Through the structure, the liquid cooling material can smoothly flow in the box body, the contact between the liquid cooling material and the battery monomer can be improved, so that the heat dissipation efficiency of the battery monomer is improved, the stability of the battery during operation can be effectively maintained, the service life of the battery can be prolonged, and the utilization rate of the material is improved. The device is simple in structure, convenient to arrange, easy to implement, low in cost, good in stability and capable of well meeting the requirements of actual use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, in particular to a liquid cooling heat dissipation battery box structure. BACKGROUND

[0002] The conventional lithium battery is usually installed in a box body and used as a whole. A large amount of heat is generated in the lithium battery during use: for example, heat is released due to chemical reaction of electrode material when lithium ions are intercalated / deintercalated between positive and negative electrodes; heat is generated due to internal resistance (including electrode, electrolyte, current collector, etc.) when current passes through; and additional heat is generated due to polarization phenomenon (concentration polarization, electrochemical polarization) during charging and discharging. Therefore, heat dissipation is crucial for the lithium battery; if heat dissipation fails, not only the performance of the battery is affected, but also safety problems may occur.

[0003] The conventional lithium battery generally adopts air cooling heat dissipation, and heat is dissipated through natural convection or forced air cooling (such as fan). However, the efficiency of air cooling heat dissipation is low (especially for high energy density batteries), and it is difficult to meet the actual needs due to dependence on environmental temperature. SUMMARY

[0004] Based on this, the embodiment of the present application provides a liquid cooling heat dissipation battery box structure, aiming at solving the problems of the existing lithium battery heat dissipation depending on environmental temperature, low heat dissipation efficiency, and difficulty in meeting the actual needs.

[0005] To achieve the above-mentioned purpose, the embodiment of the present application proposes the following technical scheme: a liquid cooling heat dissipation battery box structure, comprising a box body, a box cover, a support fence and a plurality of battery monomers; the support fence and the battery monomers are arranged in the box body, and the support fence abuts against the bottom surface of the box body; the box cover covers the top of the box body;

[0006] The support fence comprises a plurality of cavity units, and the battery monomers are arranged on the cavity units; the adjacent cavity units are connected through communication holes, and the communication holes are arranged close to the bottom surface of the box body.

[0007] As a preferred embodiment, each cavity unit is provided with a plurality of communication holes, and the plurality of communication holes are uniformly arranged on the cavity unit.

[0008] As a preferred embodiment, the cavity units are arranged in a matched manner with the battery monomers; the support fence is arranged in a matched manner with the box body; and the box body is arranged in a matched manner with the box cover.

[0009] As a preferred embodiment, each of the cavity units includes a support frame and a fixing frame, the fixing frame is arranged on the support frame, and the support frame is arranged on the bottom surface of the box body; the battery cell is arranged on the support frame; and the connecting hole is arranged on the support frame.

[0010] As a preferred embodiment, the battery cells are respectively arranged in contact with the support frame and the fixing frame; a gap is provided between the battery cells and the bottom surface of the box; and the gap is communicated with the communication hole.

[0011] As a preferred embodiment, the width of the support frame is greater than that of the fixing frame, and the fixing frames of adjacent cavity units are integrally formed, so that there is a gap between adjacent battery cells, which is conducive to heat dissipation.

[0012] As a preferred embodiment, the support frame is adapted to fit the battery cell; and the fixing frame is adapted to fit the support frame.

[0013] As a preferred embodiment, a liquid cooling material inlet is provided on the end surface of one end of the box body, and a liquid cooling material outlet is provided on the end surface of the other end of the box body; the liquid cooling material inlet and the liquid cooling material outlet are arranged diagonally.

[0014] As a preferred embodiment, the distance between the liquid cooling material inlet and the bottom of the box is smaller than the distance between the liquid cooling material outlet and the bottom of the box. This arrangement places the inlet closer to the bottom of the box and the outlet closer to the top of the box, which further facilitates the flow of liquid cooling material throughout the box and ensures efficient heat dissipation.

[0015] As a preferred embodiment, the distance between the liquid cooling material outlet and the bottom surface of the box body is smaller than the height of the battery cell.

[0016] As a preferred embodiment, the cavity units near the liquid-cooling material inlet and the cavity units near the liquid-cooling material outlet are both left empty. That is, no battery cells are placed in the cavity units near the liquid-cooling material inlet or the liquid-cooling material outlet. Excluding these empty cavity units, the remaining cavity units are arranged in a one-to-one correspondence with battery cells, that is, one battery cell is placed in each cavity unit. This arrangement allows the liquid-cooling material to flow in from the bottom of the battery, thereby achieving effective heat dissipation.

[0017] The beneficial effects achieved by the present invention are as follows: By providing support fences within the box and providing liquid cooling material inlets and outlets at both ends of the box, the present invention allows the liquid cooling material to flow smoothly within the box, thereby improving contact between the liquid cooling material and the battery cells, thereby increasing the heat dissipation efficiency of the battery cells, effectively maintaining the stability of the battery during operation, and also helping to extend the battery life and improve material utilization. The present invention has a simple structure, convenient layout, easy implementation, low cost, good stability, and can well meet the needs of actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of a liquid-cooled heat dissipation battery box structure according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of the internal structure of the liquid-cooled heat dissipation battery box structure;

[0021] Figure 3 for Figure 2 A partial structural diagram of a liquid-cooled heat dissipation battery box structure;

[0022] Figure 4 for Figure 2 Schematic diagram of the structure of the box;

[0023] Figure 5 for Figure 3 Schematic diagram of the structure of the support fence.

[0024] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, top, bottom, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0027] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a mediating element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a mediating element.

[0029] In addition, if the embodiments of the present application involve "first", "second" and the like, the "first", "second" and the like are only for descriptive purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0030] Specifically, as shown in Figures 1 to 5 The technical scheme proposed by the embodiments of the present application is as follows: a liquid cooling heat dissipation battery box structure, comprising a box body 10, a box cover 20, a support fence 30 and a plurality of battery monomers 40; the support fence 30 and the battery monomers 40 are arranged in the box body 10, and the support fence 30 abuts against the bottom surface of the box body 10; the box cover 20 covers the top of the box body 10;

[0031] The support fence 30 comprises a plurality of cavity units 31, and the battery monomers 40 are arranged on the cavity units 31; adjacent cavity units 31 are connected by communication holes 32, and the communication holes 32 are arranged close to the bottom surface of the box body 10.

[0032] As a preferred embodiment, each of the cavity units 31 is provided with a plurality of the communication holes 32, and the plurality of communication holes 32 are evenly arranged on the cavity unit 31. In the embodiment of the present application, at least one communication hole 32 is provided on each of the four sides of each cavity unit 31, so that adjacent cavity units 31 can be connected through the communication holes 32, allowing the liquid cooling material to quickly flow into each cavity unit, thereby timely dissipating heat and cooling the battery cells in each cavity unit.

[0033] As a preferred embodiment, the cavity unit 31 is adapted to be arranged with the battery cell 40 ; the support fence 30 is adapted to be arranged with the box body 10 ; and the box body 10 is adapted to be arranged with the box cover 20 .

[0034] As a preferred embodiment, Figure 5 As shown, each cavity unit 31 includes a support frame 311 and a fixing frame 312. The fixing frame 312 is mounted on the support frame 311, which is mounted on the bottom surface of the housing 10. The battery cells 40 are mounted on the support frame 311. The connecting holes 32 are disposed on the support frame 311. In the embodiment of the application, the connecting holes 32 are disposed through the support frame 311. In this way, adjacent cavity units 31 are connected through the connecting holes 32, facilitating the flow and transmission of liquid cooling material.

[0035] As a preferred embodiment, the battery cells 40 are respectively arranged in contact with the support frame 311 and the fixing frame 312; a gap is provided between the battery cells 40 and the bottom surface of the box body 10; and the gap is connected to the communication hole 32. This arrangement provides sufficient flow space for the liquid cooling material within the box body, facilitating the flow and transmission of the liquid cooling material, thereby timely dissipating heat and cooling each battery cell.

[0036] As a preferred embodiment, the width of the support frame 311 is greater than the width of the fixing frame 312; the fixing frames 312 of adjacent cavity units 31 are integrally formed. This creates gaps between adjacent battery cells 40, facilitating heat dissipation. In this embodiment, the fixing frames of all cavity units 31 are integrally formed, making them easier to arrange and disassemble.

[0037] As a preferred embodiment, the support frame 311 is configured to fit the battery cell 40; the fixing frame 312 is configured to fit the support frame 311. The support frame 311 is configured to fit the battery cell 40, meaning that the support frame 311 can both match the weight of the battery cell 40 and provide effective support, while also ensuring connectivity of the communication hole 32. The fixing frame 312 is configured to fit the support frame 311, meaning that the fixing frame 312 effectively secures the support frame 311 while also ensuring its support function.

[0038] As a preferred embodiment, a liquid cooling material inlet 11 is provided on the end surface of one end of the box body 10, and a liquid cooling material outlet 12 is provided on the end surface of the other end of the box body 10; the liquid cooling material inlet 11 and the liquid cooling material outlet 12 are arranged diagonally.

[0039] As a preferred embodiment, the distance between the liquid-cooling material inlet 11 and the bottom surface of the housing 10 is shorter than the distance between the liquid-cooling material outlet 12 and the bottom surface of the housing 10. This arrangement places the inlet near the bottom of the housing 10 and the outlet near the top, further facilitating the flow of liquid-cooling material throughout the interior of the housing 10 and ensuring efficient heat dissipation. The calibers of the liquid-cooling material inlet 11 and the liquid-cooling material outlet 12 can be adjusted based on actual usage needs, generally adapting to the size of the housing. This ensures rapid input and output of liquid-cooling material, ensuring effective cooling and heat dissipation.

[0040] As a preferred embodiment, the distance between the liquid cooling material outlet 12 and the bottom surface of the box body 10 is less than the height of the battery cell 40. This arrangement ensures the heat dissipation effect of the battery cell while preventing the liquid cooling material from affecting the conductive performance of the battery cell, thereby improving safety.

[0041] As a preferred embodiment, the cavity units 31 near the liquid-cooling material inlet 11 and the cavity units 31 near the liquid-cooling material outlet 12 are both left empty. That is, no battery cells 40 are placed in the cavity units 31 near the liquid-cooling material inlet 11 or the cavity units 31 near the liquid-cooling material outlet 12. Excluding these empty cavity units, the remaining cavity units are arranged in a one-to-one correspondence with battery cells, i.e., one battery cell is placed in each cavity unit. This arrangement provides sufficient space for liquid-cooling material to flow in from the bottom of the battery, thereby achieving effective heat dissipation.

[0042] The application sets the supporting fence in the box, sets the liquid cooling material inlet and the liquid cooling material outlet at both ends of the box, so that the liquid cooling material can flow smoothly in the box, the contact between the liquid cooling material and the battery monomer can be improved, the heat dissipation efficiency of the battery monomer is improved, the stability of the battery during operation can be effectively maintained, and the service life of the battery and the utilization rate of the material are prolonged.

[0043] In the description of the present specification, the description referring to the terms "an embodiment", "an example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0044] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

[0045] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A liquid-cooled heat dissipation battery box structure, characterized in that: It includes a box body, a box cover, a support fence and a plurality of battery cells; the support fence and the battery cells are both arranged in the box body, the support fence abuts against the bottom surface of the box body; the box cover is covered on the top of the box body; The support fence includes a plurality of cavity units, and the battery cells are arranged on the cavity units; adjacent cavity units are connected through communication holes, and the communication holes are arranged close to the bottom surface of the box body.

2. The liquid-cooled heat dissipation battery box structure according to claim 1, characterized in that: Each of the cavity units is provided with a plurality of the communicating holes, and the plurality of communicating holes are evenly arranged on the cavity unit.

3. The liquid cooling and heat dissipation battery box structure according to claim 1, characterized in that: The cavity unit is adapted to be arranged with the battery monomer; the support fence is adapted to be arranged with the box body; and the box body is adapted to be arranged with the box cover.

4. The liquid-cooled heat dissipation battery box structure according to claim 1, characterized in that: Each of the cavity units includes a support frame and a fixing frame, the fixing frame is arranged on the support frame, and the support frame is arranged on the bottom surface of the box body; the battery cell is arranged on the support frame; and the communication hole is arranged on the support frame.

5. The liquid cooling and heat dissipation battery box structure according to claim 4, characterized in that: The battery cells are respectively arranged in contact with the support frame and the fixing frame; a gap is provided between the battery cells and the bottom surface of the box body; and the gap is communicated with the communication hole.

6. The liquid-cooled heat dissipation battery box structure according to claim 4, characterized in that: The width of the support frame is greater than that of the fixing frame; the fixing frames of adjacent cavity units are integrally formed; the support frame is adapted to the battery cell; and the fixing frame is adapted to the support frame.

7. The liquid-cooled heat dissipation battery box structure according to claim 1, characterized in that: A liquid cooling material inlet is provided on an end surface of one end of the box body, and a liquid cooling material outlet is provided on an end surface of the other end of the box body; the liquid cooling material inlet and the liquid cooling material outlet are arranged diagonally.

8. The liquid-cooled heat dissipation battery box structure according to claim 7, characterized in that: The distance between the liquid-cooling material inlet and the bottom surface of the box body is smaller than the distance between the liquid-cooling material outlet and the bottom surface of the box body.

9. The liquid-cooled heat dissipation battery box structure according to claim 7, characterized in that: The distance between the liquid cooling material outlet and the bottom surface of the box body is smaller than the height of the battery cell.

10. The liquid-cooled heat dissipation battery box structure according to claim 7, characterized in that: The cavity unit close to the liquid-cooling material inlet and the cavity unit close to the liquid-cooling material outlet are both set empty.

Images