Lithium battery module

Abstract

The utility model relates to a lithium battery module. The lithium battery module comprises a battery cell, the two battery cell brackets are respectively arranged at the two ends of the battery cell, and each battery cell bracket comprises a battery cell mounting groove for mounting the battery cell and a polar column at least exposing the end part of the battery cell, wherein the planar part is of a plate-shaped structure and is provided with a battery cell mounting groove for mounting the battery cell; the two PCB acquisition boards are respectively arranged on one sides, far away from the battery cells, of the two battery cell brackets, and connecting sheets welded with the pole columns are integrated on the PCB acquisition boards; the two protection plates are respectively arranged on one sides, far away from the battery cell brackets, of the two PCB acquisition plates; and the two protection plates are respectively connected with the two battery cell brackets in a buckling manner. The lithium battery module disclosed by the utility model is compact in structure, neat in appearance, small in size, light in weight, convenient to assemble and carry, simple in assembly process and suitable for large-scale production.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic energy storage power supply technical field especially relates to a lithium battery module. BACKGROUND

[0002] The energy storage industry has ushered in development opportunities, especially lithium battery energy storage becomes the mainstream energy storage form because of its high efficiency and environmental protection characteristics. However, although lithium battery module is widely used in the automobile and new energy industry, the application in the domestic energy storage field is relatively limited, the domestic energy storage field mainly uses ternary lithium battery, and there are problems such as large weight and volume, high cost and insufficient safety.

[0003] Therefore, there is an urgent need for a lithium battery module to adapt to the installation and use of the home environment, while ensuring the economy and safety of the product, providing a new efficient, safe and economical solution for the domestic energy storage field. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiency in the prior art, and provides a lithium battery module.

[0005] To achieve the above object, the utility model adopts the technical scheme that:

[0006] A lithium battery module is provided, comprising:

[0007] A cell has a pole on the end thereof;

[0008] Two cell supports are respectively arranged at the two ends of the cell, and the cell support comprises a planar portion in a plate structure and a leg portion in a column structure;

[0009] The planar portion is provided with a cell mounting groove for mounting the cell, and the cell mounting groove exposes at least the pole;

[0010] The leg portion is arranged on the side of the planar portion close to the cell, one of the two cell supports is provided with a screw hole on the leg portion, and the other of the two cell supports is embedded with a screw in the leg portion, and the screw is locked to the screw hole to relatively fix the two cell supports;

[0011] Two PCB collection boards are respectively arranged on the sides of the two cell supports away from the cell, the PCB collection board is integrated with a connecting piece, and the connecting piece is welded to the pole;

[0012] And

[0013] Two protection plates, two protection plates are respectively arranged on the side of the two PCB collection plates away from the battery cell support, and the two protection plates are respectively connected with the two battery cell supports through buckling.

[0014] Preferably, a limiting column is fixedly arranged on the side of the planar part away from the battery cell.

[0015] Preferably, a limiting hole matched with the limiting column is arranged on the PCB collection plate, and the limiting column penetrates through the limiting hole correspondingly to limit the position of the PCB collection plate and the planar part.

[0016] Preferably, one of the two battery cell supports is fixedly provided with a current output end on the side wall of the planar part, and the connecting piece is embedded in the current output end after being bent and extended.

[0017] Preferably, further comprising:

[0018] A protective cover is detachably arranged outside the current output end.

[0019] Preferably, a bayonet is arranged on the outer periphery of the current output end, and the protective cover is detachably arranged outside the current output end through the bayonet.

[0020] Preferably, a temperature sensor is further integrated on the PCB collection plate.

[0021] The utility model discloses the above technical scheme, compared with the prior art, has the following technical effects:

[0022] The utility model discloses a lithium battery module structure is compact, appearance neat, small, light in weight, and the assembly and the carrying of being convenient for, and the assembly process is simple, is suitable for large -scale production, in addition, the lithium battery module adopts the plastic material, can reduce the module weight significantly, strengthens the structural strength and battery protection simultaneously, improves the overall security. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of lithium battery module in the utility model;

[0024] Figure 2 It is the local structure schematic diagram of the leg part of two battery cell supports in the utility model in fixed state;

[0025] Among them, the reference signs include:

[0026] Battery cell 1, pole 11, battery cell support 2, planar part 21, battery cell mounting groove 211, current output end 212, leg part 22, PCB collection plate 3, connecting piece 31, protection plate 4, protective cover 5. DETAILED DESCRIPTION

[0027] The specific embodiments of this utility model will be described in detail below.

[0028] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0029] The word "comprising" or similar terms used in this utility model patent application specification and claims mean that the objects preceding "comprising" include the objects listed after "comprising" or their equivalents, and do not exclude other objects. Example

[0030] like Figure 1 As shown, this embodiment provides a lithium battery module, including:

[0031] Battery cell 1, wherein the end of the battery cell 1 has a terminal post 11;

[0032] Two cell supports 2 are respectively disposed at both ends of the cell 1; each cell support 2 includes: a planar portion 21 with a plate-like structure and a support leg portion 22 with a column-like structure;

[0033] The planar portion 21 has a cell mounting groove 211 for mounting the cell 1, and the cell mounting groove 211 exposes at least the electrode post 11; a limit post is also fixedly provided on the side of the planar portion 21 away from the cell 1; one of the two cell supports 2 has a current output terminal 212 fixedly provided on the side wall of the planar portion 21, and a bayonet is provided on the outer periphery of the current output terminal 212;

[0034] The support leg portion 22 is disposed on the side of the planar portion 21 near the battery cell 1; as shown Figure 2 As shown, one of the two battery cell brackets 2 has a screw hole on the support leg portion 22, and the other of the two battery cell brackets 2 has a screw embedded in the support leg portion 22. The screw is tightened into the screw hole to fix the two battery cell brackets 2 relative to each other.

[0035] Two PCB acquisition boards 3 are respectively disposed on the side of the two cell supports 2 away from the cell 1. Each PCB acquisition board 3 has a limiting hole that matches the limiting post. The limiting post passes through the limiting hole to limit the position of the PCB acquisition board 3 relative to the planar portion 21. A connecting piece 31 is integrated on each PCB acquisition board 3. The connecting piece 31 is welded to the electrode post 11. The connecting piece 31 on one of the two PCB acquisition boards 3 is bent and extended and embedded in the current output terminal 212. A temperature sensor is also integrated on the PCB acquisition board 3 to monitor the temperature of the cell 1 in real time, prevent thermal runaway, and ensure cell safety.

[0036] Two protection boards 4 are respectively disposed on the side of the two PCB acquisition boards 3 away from the cell support 2, and the two protection boards 4 are respectively snap-fitted to the two cell supports 2;

[0037] as well as

[0038] The protective cover 5 is detachably mounted on the outside of the current output terminal 212 via a snap fastener.

[0039] In this embodiment, the lithium battery module mounts the battery cell 1 through the battery cell mounting slot 211 on the flat part 21 of the battery cell bracket 2. The connecting piece 31 on the PCB acquisition board 3 is directly welded to the electrode post 11 exposed outside the battery cell mounting slot 211, and the current is led out at the current output terminal 212. This makes the overall structure of the lithium battery module compact, not only neat in appearance, but also space-saving, and can exert the maximum efficiency in a limited space.

[0040] The two cell supports 2 at both ends of the cell 1 are locked together by screws and screw holes embedded in the support leg part 22. The protection plate 4 and the cell support 2, as well as the protection cover 5 and the cell support 2, are directly fixed by buckles, which further reduces the overall volume and weight of the lithium battery module, thus making it suitable for carrying, transporting and using in the home environment. Similarly, easy assembly can also reduce production costs. The number of possible errors during the assembly process is reduced, and the production efficiency is improved, making it easy to mass-produce.

[0041] In a preferred embodiment, the cell support 2, the protection plate 4, and the protection cover 5 are all injection molded using plastic molds, which further reduces the weight of the lithium battery module while ensuring the surface quality of the materials and the structural strength.

[0042] In a preferred embodiment, the PCB acquisition board 3 is made of FR4 PCB material to optimize the current routing and soldering process.

[0043] In summary, the lithium battery module of this utility model has a compact structure, neat appearance, small size, and light weight, making it easy to assemble and transport. Moreover, the assembly process is simple and suitable for mass production. In addition, the lithium battery module is made of plastic material, which can significantly reduce the weight of the module, while enhancing structural strength and battery protection, thereby improving overall safety.

[0044] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery module, characterized in that, include: The battery cell (1) has a terminal post (11) at its end. Two cell supports (2) are respectively disposed at both ends of the cell (1). The cell support (2) includes: a planar part (21) with a plate-like structure and a leg part (22) with a column-like structure. The planar portion (21) has a cell mounting groove (211) for mounting the cell (1), and the cell mounting groove (211) exposes at least the terminal post (11). The leg portion (22) is located on the side of the planar portion (21) near the battery cell (1). One of the two battery cell supports (2) has a screw hole on the leg portion (22), and the other of the two battery cell supports (2) has a screw embedded in the leg portion (22). The screw is tightened into the screw hole to fix the two battery cell supports (2) relative to each other. Two PCB acquisition boards (3) are respectively disposed on the side of the two battery cell brackets (2) away from the battery cell (1). A connecting piece (31) is integrated on the PCB acquisition board (3), and the connecting piece (31) is welded to the electrode post (11). as well as Two protection boards (4) are respectively disposed on the side of the two PCB acquisition boards (3) away from the battery cell bracket (2), and the two protection boards (4) are respectively snap-fitted to the two battery cell brackets (2).

2. The lithium battery module according to claim 1, characterized in that, A limit post is fixedly provided on the side of the planar portion (21) away from the battery cell (1).

3. The lithium battery module according to claim 2, characterized in that, The PCB acquisition board (3) has a limiting hole that matches the limiting post. The limiting post passes through the limiting hole to limit the position of the PCB acquisition board (3) and the planar part (21).

4. The lithium battery module according to claim 1, characterized in that, One of the two battery cell supports (2) has a current output terminal (212) fixedly provided on the side wall of the planar portion (21), and the connecting piece (31) is bent and extended and embedded in the current output terminal (212).

5. The lithium battery module according to claim 4, characterized in that, Also includes: A protective cover (5) is detachably disposed outside the current output terminal (212).

6. The lithium battery module according to claim 5, characterized in that, A snap-fit ​​opening is provided on the outer periphery of the current output terminal (212), and the protective cover (5) is detachably mounted on the outside of the current output terminal (212) by means of a snap-fit.

7. The lithium battery module according to claim 1, characterized in that, The PCB acquisition board (3) also integrates a temperature sensor.

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