Battery module structure

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery module structure which comprises a positive plate, a negative plate and a limiting structure, the limiting structure is composed of a plurality of unit limiting grids, the unit limiting grids are used for placing unit battery cells, the positive plate is used for connecting a positive electrode formed by connecting a plurality of unit battery cells in series and in parallel, the negative plate is used for connecting a negative electrode formed by connecting a plurality of unit battery cells in series and in parallel, and the unit limiting grids are filled with heat-conducting silicone grease. According to the battery module structure, the limiting structure is arranged, the unit limiting grids are arranged in the limiting structure, and the body parts of the unit battery cells are wrapped by the heat-conducting silicone grease in a manner of filling the unit limiting grids with the heat-conducting silicone grease, so that the heat dissipation efficiency of the whole battery module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery module structure. Background Art

[0002] Existing battery modules are generally formed by connecting multiple unit cells in series and parallel. Since the battery will generate a certain amount of heat when charging and discharging, in order to improve the performance of the battery, this heat needs to be dissipated in time. The existing heat dissipation solution for power modules generally adopts the method of pasting thermal conductive silicone sheets. However, this method does not wrap the unit cells enough and the heat dissipation efficiency is not high. Therefore, how to improve the heat dissipation efficiency of battery modules is a technical problem that urgently needs to be studied in the industry. Utility Model Content

[0003] The purpose of the utility model is to provide a battery module structure to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The utility model solves the technical problem by providing a battery module structure, including a positive plate, a negative plate and a limiting structure; the limiting structure is composed of a plurality of unit limiting grids, the unit limiting grids are used to place unit batteries, the positive plate is used to connect the positive electrode formed by connecting a plurality of unit batteries in series and parallel, the negative plate is used to connect the negative electrode formed by connecting a plurality of unit batteries in series and parallel, and the unit limiting grids are filled with thermal conductive silicone grease.

[0005] Furthermore, the battery module structure also includes a first heat sink, the positive plate is provided with a first through hole array, the first heat sink is connected to the positive plate, and the first heat sink is connected to the thermal grease through the first through hole array.

[0006] Furthermore, the battery module structure also includes a second heat sink, the negative electrode plate is provided with a second through hole array, the second heat sink is connected to the negative electrode plate, and the second heat sink is connected to the thermal grease through the second through hole array.

[0007] Furthermore, the first radiator is made of aluminum alloy.

[0008] Furthermore, the second radiator is made of aluminum alloy.

[0009] Furthermore, the first radiator is provided with a first ventilation slot array.

[0010] Furthermore, the second radiator is provided with a second ventilation slot array.

[0011] Furthermore, the unit limiting grid is a component made of PVC material.

[0012] Furthermore, the substrate of the positive electrode plate is an aluminum substrate.

[0013] Furthermore, the substrate of the negative electrode plate is an aluminum substrate.

[0014] The beneficial effect of the utility model is that the battery module structure is provided with a limiting structure, utilizes the unit limiting grid provided in the limiting structure, and fills the unit limiting grid with thermal conductive silicone grease to wrap the body of the unit battery cell, thereby improving the heat dissipation efficiency of the entire battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following is a brief description of the drawings required for the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present utility model, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the battery module;

[0017] Figure 2 It is a structural schematic diagram of the limiting structure;

[0018] Figure 3 It is a schematic diagram of the structure of the positive plate;

[0019] Figure 4 It is a schematic diagram of the structure of the negative plate. Implementation

[0020] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0021] It should be noted that, although the functional modules are divided in the system schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the system or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0022] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 It is a schematic diagram of the three-dimensional structure of the battery module. Figure 2 is a schematic structural diagram of the limiting structure 100. Figure 3 Schematic diagram of the structure of the positive electrode plate 110 . Figure 4 Schematic diagram of the structure of the negative electrode plate 120 .

[0023] The main function of the battery module structure is to provide a structural solution that can facilitate heat dissipation of the battery module. In order to achieve this technical goal, the present application discloses a battery module structure, including: a positive plate 110, a negative plate 120 and a limiting structure 100.

[0024] The limiting structure 100 is composed of a plurality of unit limiting grids 101, wherein the unit limiting grids 101 are used to place unit cells, the positive electrode plate 110 is used to connect the positive electrode formed by connecting a plurality of unit cells in series and parallel, and the negative electrode plate 120 is used to connect the negative electrode formed by connecting a plurality of unit cells in series and parallel, and the unit limiting grids 101 are filled with thermal conductive silicone grease.

[0025] The positive plate 110 serves as the output positive electrode of the battery module, and the negative plate 120 serves as the output negative electrode of the battery module.

[0026] The function of the limiting structure 100 is to limit the position of the unit battery cell. At the same time, the limiting structure 100 forms a unit limiting grid 101 that can be used to fill thermal conductive silicone grease. When the unit battery cell is placed in the unit limiting grid 101, the thermal conductive silicone grease can be filled in the unit limiting grid 101 so that the thermal conductive silicone grease wraps the body of the unit battery cell. The unit battery cell can transfer heat through the thermal conductive silicone grease to improve the heat dissipation efficiency of the entire battery module.

[0027] The battery module structure provides a limiting structure 100, utilizes the unit limiting grid 101 provided in the limiting structure 100, and fills the unit limiting grid 101 with thermal conductive silicone grease to wrap the body of the unit battery cell, thereby improving the heat dissipation efficiency of the entire battery module.

[0028] In some further specific embodiments, the battery module structure further includes a first radiator 210, the positive plate 110 is provided with a first through hole array 111, the first radiator 210 is connected to the positive plate 110, and the first radiator 210 is connected to the thermal conductive silicone grease through the first through hole array 111. The first radiator 210 is an aluminum alloy component.

[0029] This further specific embodiment mainly adds a first heat sink 210, and uses the first heat sink 210 to enhance the heat dissipation efficiency of the battery module. In order to ensure that the first heat sink 210 can fully contact the thermal grease, a first through hole array 111 is provided on the positive plate 110. When the thermal grease is filled into the unit limit grid 101, a part of it can pass through the positive plate 110 through the first through hole array 111, and then contact the first heat sink 210. Thereby, the heat is efficiently transferred to the first heat sink 210.

[0030] In some further specific embodiments, the battery module structure further includes a second heat sink 220, the negative plate 120 is provided with a second through hole array 121, the second heat sink 220 is connected to the negative plate 120, and the second heat sink 220 is connected to the thermal conductive silicone grease through the second through hole array 121. The second heat sink 220 is an aluminum alloy component.

[0031] This further specific embodiment mainly adds a second heat sink 220, and uses the second heat sink 220 to enhance the heat dissipation efficiency of the battery module. In order to ensure that the second heat sink 220 can fully contact the thermal grease, a second through hole array 121 is provided on the negative plate 120. When the thermal grease is filled into the unit limit grid 101, a part of it can pass through the negative plate 120 through the second through hole array 121, and then contact the second heat sink 220. Thereby, the heat is efficiently transferred to the second heat sink 220.

[0032] In order to further improve the heat dissipation efficiency of the first radiator 210, in some further specific embodiments, the first radiator 210 is provided with a first ventilation slot array 211. The first ventilation slot array 211 is used to increase the contact area between the first radiator 210 and the air, thereby improving the heat dissipation efficiency of the first radiator 210.

[0033] In order to further improve the heat dissipation efficiency of the second radiator 220, in some further specific embodiments, the second radiator 220 is provided with a second ventilation slot array 221. The second ventilation slot array 221 is used to increase the contact area between the second radiator 220 and the air, thereby improving the heat dissipation efficiency of the second radiator 220.

[0034] In some further specific embodiments, the unit limiting grid 101 is a PVC material component.

[0035] In some further specific embodiments, the substrate of the positive electrode plate 110 is an aluminum substrate.

[0036] In some further specific embodiments, the substrate of the negative electrode plate 120 is an aluminum substrate.

[0037] The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A battery module structure, characterized in that: include: A positive electrode plate (110), a negative electrode plate (120) and a limiting structure (100); the limiting structure (100) is composed of a plurality of unit limiting grids (101); the unit limiting grids (101) are used to place unit cells; the positive electrode plate (110) is used to connect a positive electrode formed by connecting a plurality of unit cells in series and parallel; the negative electrode plate (120) is used to connect a negative electrode formed by connecting a plurality of unit cells in series and parallel; and the unit limiting grids (101) are filled with thermal conductive silicone grease.

2. A battery module structure according to claim 1, characterized in that: It also comprises a first heat sink (210), the positive electrode plate (110) is provided with a first through hole array (111), the first heat sink (210) is connected to the positive electrode plate (110), and the first heat sink (210) is connected to the thermal conductive silicone grease via the first through hole array (111).

3. A battery module structure according to claim 1, characterized in that: It also comprises a second heat sink (220), the negative electrode plate (120) being provided with a second through hole array (121), the second heat sink (220) being connected to the negative electrode plate (120), and the second heat sink (220) being connected to the thermal conductive silicone grease via the second through hole array (121).

4. A battery module structure according to claim 2, characterized in that: The first heat sink (210) is a component made of aluminum alloy.

5. A battery module structure according to claim 3, characterized in that: The second radiator (220) is a component made of aluminum alloy.

6. A battery module structure according to claim 2, characterized in that: The first heat sink (210) is provided with a first ventilation slot array (211).

7. A battery module structure according to claim 3, characterized in that: The second heat sink (220) is provided with a second ventilation slot array (221).

8. A battery module structure according to claim 1, characterized in that: The unit limiting grid (101) is a component made of PVC material.

9. A battery module structure according to claim 1, characterized in that: The substrate of the positive electrode plate (110) is an aluminum substrate.

10. A battery module structure according to claim 1, characterized in that: The substrate of the negative electrode plate (120) is an aluminum substrate.

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