Liquid cooling heat dissipation battery box structure

Abstract

The application relates to a liquid-cooled heat dissipation battery box structure, which comprises a box body, a box cover, a supporting fence and a plurality of battery monomers; the supporting fence and the battery monomers are arranged in the box body, the supporting fence is in abutment with 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, the battery monomers are arranged on the cavity units; adjacent cavity units are communicated through communication holes, and the communication holes are arranged close to the bottom surface of the box body. Through the structure, the liquid cooling material can flow smoothly in the box body, the contact between the liquid cooling material and the battery monomers can be improved, the heat dissipation efficiency of the battery monomers is improved, the stability of the battery during operation can be effectively maintained, the service life of the battery is prolonged, and the utilization rate of materials is improved. The application has the advantages of simple structure, convenient arrangement, easy realization, low cost, good stability and the like, and can well meet the needs of actual use.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a liquid-cooled heat dissipation battery box structure. Background Technology

[0002] Traditional lithium batteries are typically housed in a casing and used as a single unit. Lithium batteries generate a significant amount of heat during operation: heat is released from the chemical reactions of the electrode materials as lithium ions intercalate and deintercalate between the positive and negative electrodes; heat is generated when current flows through the battery due to internal resistance (including electrodes, electrolyte, and current collectors); and additional heat is generated during charging and discharging due to polarization phenomena (concentration polarization, electrochemical polarization). Therefore, heat dissipation is crucial for lithium batteries; problems with heat dissipation not only affect battery performance but can also lead to safety issues.

[0003] Traditional lithium batteries typically use air cooling, which dissipates heat through natural convection or forced air cooling (such as a fan). However, air cooling is inefficient (especially for high-energy-density batteries) and is dependent on ambient temperature, making it difficult to meet the needs of practical applications. Utility Model Content

[0004] Based on this, the present invention provides a liquid-cooled heat dissipation battery box structure, which aims to solve the problems of existing lithium battery heat dissipation relying on ambient temperature, low heat dissipation efficiency, and difficulty in meeting the needs of actual use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a liquid-cooled heat dissipation battery box structure, comprising a box body, a box cover, a support grid, and multiple battery cells; the support grid and the battery cells are both disposed within the box body, and the support grid abuts against the bottom surface of the box body; the box cover is fitted onto the top of the box body;

[0006] The support fence includes multiple cavity units, and the battery cells are disposed on the cavity units; adjacent cavity units are connected by connecting holes, which are located near the bottom surface of the housing.

[0007] In a preferred embodiment, each cavity unit is provided with a plurality of communication holes, and the plurality of communication holes are evenly distributed on the cavity unit.

[0008] In a preferred embodiment, the cavity unit is adapted to the battery cell; the support fence is adapted to the housing; and the housing is adapted to the cover.

[0009] In a preferred embodiment, each cavity unit includes a support frame and a fixing frame, the fixing frame being disposed on the support frame, and the support frame being disposed on the bottom surface of the housing; the battery cell being disposed on the support frame; and the connecting hole being disposed on the support frame.

[0010] In a preferred embodiment, the battery cell is respectively abutted against the support frame and the fixing frame; a gap is provided between the battery cell and the bottom surface of the housing; the gap is connected to the communicating hole.

[0011] In a preferred embodiment, the width of the support frame is greater than the width of the fixing frame; the fixing frames of adjacent cavity units are integrally formed. This creates gaps between adjacent battery cells, which facilitates heat dissipation.

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

[0013] In a preferred embodiment, a liquid cooling material inlet is provided on one end face of the housing, and a liquid cooling material outlet is provided on the other end face of the housing; the liquid cooling material inlet and the liquid cooling material outlet are arranged diagonally.

[0014] In a preferred embodiment, the distance between the liquid cooling material inlet and the bottom surface of the housing is less than the distance between the liquid cooling material outlet and the bottom surface of the housing. This arrangement, with the inlet closer to the bottom of the housing and the outlet closer to the top, facilitates the flow of liquid cooling material throughout the entire interior of the housing, ensuring efficient heat dissipation.

[0015] In a preferred embodiment, the distance between the liquid cooling material outlet and the bottom surface of the housing is less than the height of the battery cell.

[0016] In 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 unused. That is, neither the cavity units near the liquid cooling material inlet nor the cavity units near the liquid cooling material outlet contain a single battery cell. Excluding these unused cavity units, the remaining cavity units are arranged in a one-to-one correspondence with a single battery cell, i.e., one cavity unit contains one battery cell. 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 this utility model are as follows: By setting a supporting grid inside the casing and providing liquid cooling material inlets and outlets at both ends of the casing, the liquid cooling material can flow smoothly within the casing. This improves the contact between the liquid cooling material and the battery cells, thereby enhancing the heat dissipation efficiency of the battery cells. This effectively maintains the stability of the battery during operation, and also helps extend the battery's lifespan and improve material utilization. This application has a simple structure, is easy to arrange and implement, has low cost, and good stability, thus well meeting the needs of practical use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

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

[0020] Figure 2 for Figure 1 A schematic diagram of the internal structure of the liquid-cooled battery box;

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

[0022] Figure 4 for Figure 2 A schematic diagram of the box's structure;

[0023] Figure 5 for Figure 3 A schematic diagram of the supporting fence structure.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

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

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] It should be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. 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. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] Specifically, such as Figures 1 to 5 As shown, the present invention proposes the following technical solution: a liquid-cooled heat dissipation battery box structure, including a box body 10, a box cover 20, a support grid 30, and a plurality of battery cells 40; the support grid 30 and the battery cells 40 are both disposed inside the box body 10, and the support grid 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 includes multiple cavity units 31, and the battery cell 40 is disposed on the cavity unit 31; adjacent cavity units 31 are connected by a connecting hole 32, which is disposed near the bottom surface of the housing 10.

[0032] In a preferred embodiment, each cavity unit 31 is provided with a plurality of connecting holes 32, which are evenly distributed on the cavity unit 31. In this embodiment, each cavity unit 31 has at least one connecting hole 32 on each of its four sides, so that adjacent cavity units 31 can be connected through the connecting holes 32, allowing liquid cooling material to flow quickly into each cavity unit and provide timely heat dissipation and cooling for the battery cells in each cavity unit.

[0033] In a preferred embodiment, the cavity unit 31 is adapted to the battery cell 40; the support fence 30 is adapted to the housing 10; and the housing 10 is adapted to the cover 20.

[0034] As a preferred embodiment, such as Figure 5 As shown, each cavity unit 31 includes a support frame 311 and a fixing frame 312. The fixing frame 312 is disposed on the support frame 311, and the support frame 311 is disposed on the bottom surface of the housing 10. The battery cell 40 is disposed on the support frame 311. The connecting hole 32 is disposed on the support frame 311. In the embodiment of the application, the connecting hole 32 is disposed through the support frame 311, so that adjacent cavity units 31 are connected through the connecting hole 32, which facilitates the flow and transportation of liquid cooling materials.

[0035] In a preferred embodiment, the battery cell 40 is respectively abutted against the support frame 311 and the fixing frame 312; a gap is provided between the battery cell 40 and the bottom surface of the housing 10; the gap is connected to the connecting hole 32. This arrangement provides sufficient flow space for the liquid cooling material within the housing, facilitating the flow and transport of the liquid cooling material, thereby enabling timely heat dissipation and cooling of each battery cell.

[0036] In 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, all fixing frames of the cavity units 31 are integrally formed, which facilitates arrangement and easy assembly / disassembly.

[0037] In a preferred embodiment, the support frame 311 is adapted to the battery cell 40; the fixing frame 312 is adapted to the support frame 311. The support frame 311 is adapted to the battery cell 40, meaning it can both match the weight of the battery cell 40 and provide effective support, while ensuring the continuity of the connecting hole 32. The fixing frame 312 is adapted to the support frame 311, meaning it effectively fixes the support frame 311 while also effectively ensuring its supporting function.

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

[0039] In a preferred embodiment, the distance between the liquid cooling material inlet 11 and the bottom surface of the housing 10 is less than the distance between the liquid cooling material outlet 12 and the bottom surface of the housing 10. This arrangement, with the inlet closer to the bottom of the housing 10 and the outlet closer to the top, facilitates the flow of liquid cooling material throughout the entire interior of the housing 10, ensuring efficient heat dissipation. The diameters of the liquid cooling material inlet 11 and the liquid cooling material outlet 12 can be set according to actual usage needs, generally adapting to the size of the housing. This ensures rapid input and output of the liquid cooling material, guaranteeing effective cooling and heat dissipation.

[0040] In a preferred embodiment, the distance between the liquid cooling material outlet 12 and the bottom surface of the housing 10 is less than the height of the battery cell 40. This arrangement ensures effective heat dissipation for the battery cell while preventing the liquid cooling material from affecting its conductivity, thus providing better safety in use.

[0041] In 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 unused. That is, neither the cavity units 31 near the liquid cooling material inlet 11 nor the cavity units 31 near the liquid cooling material outlet 12 contain battery cells 40. Excluding these unused cavity units, the remaining cavity units are arranged in a one-to-one correspondence with battery cells, i.e., one battery cell per cavity unit. This arrangement provides sufficient space for the liquid cooling material to flow in from the bottom of the battery, thereby achieving effective heat dissipation.

[0042] This application, by incorporating a supporting grid within the casing and setting liquid cooling material inlets and outlets at both ends of the casing, allows for smooth flow of the liquid cooling material within the casing. This improves the contact between the liquid cooling material and the battery cells, thereby enhancing the heat dissipation efficiency of the battery cells. This effectively maintains the stability of battery operation, extends battery life, and improves material utilization. The application features a simple structure, convenient layout, ease of implementation, low cost, and good stability, thus well meeting the needs of practical applications.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0045] 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 liquid-cooled heat dissipation battery box structure, characterized in that, The device includes a housing, a lid, a support grid, and multiple battery cells; both the support grid and the battery cells are disposed within the housing, with the support grid abutting against the bottom surface of the housing; the lid covers the top of the housing. The support fence includes multiple cavity units, and the battery cells are disposed on the cavity units; adjacent cavity units are connected by connecting holes, which are located near the bottom surface of the housing.

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

3. The liquid-cooled heat dissipation battery box structure according to claim 1, characterized in that, The cavity unit is adapted to the battery cell; the support fence is adapted to the housing; and the housing is adapted to the cover.

4. The liquid-cooled heat dissipation battery box structure according to claim 1, characterized in that, Each cavity unit includes a support frame and a fixing frame, the fixing frame being disposed on the support frame, and the support frame being disposed on the bottom surface of the housing; the battery cell being disposed on the support frame; and the connecting hole being disposed on the support frame.

5. The liquid-cooled heat dissipation battery box structure according to claim 4, characterized in that, The battery cells are respectively abutted against the support frame and the fixing frame; a gap is provided between the battery cells and the bottom surface of the housing; the gap is connected to the connecting 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 the width of the fixing frame; the fixing frames of adjacent cavity units are integrally formed; the support frame is adapted to the battery cell; 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 one end face of the housing, and a liquid cooling material outlet is provided on the other end face of the housing; 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 housing is less than the distance between the liquid cooling material outlet and the bottom surface of the housing.

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 housing is less than the height of the individual battery cell.

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

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