Energy storage lithium battery module

Abstract

The utility model relates to the technical field of lithium batteries, and in particular to an energy storage lithium battery module. It comprises a shell, wherein a plurality of accommodating cavities are arranged at intervals in the shell, wherein the accommodating cavities are used to accommodate lithium batteries, and a cover plate is arranged on the shell, wherein the cover plate covers the plurality of accommodating cavities, and a fixing member is arranged between the cover plate and the shell. The utility model has the effect of being able to be assembled into a plurality of lithium battery modules with different capacities.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to an energy storage lithium battery module. Background Art

[0002] Lithium battery is a chemical power source that uses lithium metal or lithium alloy as the negative electrode material and non-aqueous electrolyte solution. In practical applications, the most common type of lithium battery is lithium-ion battery, which does not use pure lithium metal as the negative electrode, but uses electrode materials containing lithium compounds (such as graphite, lithium cobalt oxide, lithium manganese oxide, etc.), and stores and releases energy by embedding and de-embedding lithium ions between the positive and negative electrodes during the charge and discharge process. Lithium-ion batteries have been widely used in portable electronic devices, electric vehicles, energy storage systems and other fields due to their high energy density, long cycle life, low self-discharge rate and relatively small impact on the environment.

[0003] Currently, when lithium battery modules are used in some equipment, they are generally composed of multiple cylindrical lithium battery cells. However, the reserved positions for installing lithium battery modules in current equipment are generally of standardized fixed sizes. Such lithium battery modules are generally composed of a fixed number of lithium battery cells, which cannot meet the needs of different consumers for lithium battery modules of different capacities. Utility Model Content

[0004] In order to obtain lithium battery modules with various capacities, the utility model provides an energy storage lithium battery module in view of the problems of the prior art.

[0005] The utility model provides an energy storage lithium battery module, which adopts the following technical solution:

[0006] A lithium energy storage battery module comprises a shell, wherein a plurality of accommodating cavities are arranged at intervals in the shell, the accommodating cavities are used to accommodate lithium batteries, a cover plate is arranged on the shell, the cover plate covers the plurality of accommodating cavities, and a fixing piece is arranged between the cover plate and the shell.

[0007] Furthermore, the edge of the cover plate is provided with a convex edge, the convex edge is attached to the outer side surface of the shell, and the fixing member includes a plurality of screws threadedly connected to the convex edge and the shell.

[0008] Furthermore, a threaded sleeve is provided on the inner side surface of the shell, and the screw is threadably connected to the threaded sleeve.

[0009] Furthermore, a plurality of rubber sleeves are arranged in the accommodating cavity, the rubber sleeves are arranged with an opening facing one side of the cover plate, and the lithium batteries are located in the rubber sleeves.

[0010] Furthermore, a rubber pressing block is arranged on the surface of the cover plate facing the lithium battery, and the rubber pressing block abuts against the lithium battery.

[0011] Furthermore, a wire-passing hole is provided on one side wall of the accommodating cavity, and a through hole is provided on the convex edge, and the through hole is aligned with the wire-passing hole.

[0012] Furthermore, a waterproof pad is provided on the surface of the cover plate facing the shell, and the waterproof pad abuts against the edge of the shell.

[0013] In summary, the present invention includes at least one of the following beneficial technical effects:

[0014] During assembly, operators place multiple lithium batteries that are assembled and fixed together into the accommodating cavity, and according to needs, some accommodating cavities can be left empty without assembling lithium batteries therein, thereby obtaining lithium battery modules of different capacities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model.

[0017] Figure 3 It is an explosion diagram of the utility model.

[0018] Figure 4 It is an explosion diagram of the utility model.

[0019] In the figure: 1, housing; 11, accommodating cavity; 12, rubber sleeve; 13, wire hole; 2, lithium battery; 3, cover plate; 31, convex edge; 32, rubber pressing block; 33, through hole; DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] The utility model embodiment discloses an energy storage lithium battery module, such as Figure 1-4 As shown, it includes a shell 1, which is in a rectangular shape, and multiple partitions are welded inside the shell 1. The multiple partitions divide the inside of the shell 1 into multiple accommodating chambers 11. The multiple accommodating chambers 11 are arranged at intervals along the length direction of the shell 1. In this embodiment, the number of accommodating chambers 11 is preferably three. The accommodating chambers 11 are used to accommodate lithium batteries 2. Multiple lithium batteries 2 are combined and fixed in a square shape. During assembly, lithium batteries 2 can be assembled into one, two or three accommodating chambers 11 according to needs. At the same time, a cover plate 3 is provided on the shell 1. The cover plate 3 is in a rectangular shape. The four side edges of the cover plate 3 protrude from the edges of the shell 1. The cover plate 3 covers the multiple accommodating chambers 11. At the same time, the four edges of the cover plate 3 are integrally formed with convex edges 31, and the convex edges 31 are attached to the outer side of the shell 1.

[0023] Meanwhile, a fixing member is provided between the cover plate 3 and the housing 1. Specifically, the fixing member includes a plurality of screws threadedly connected to the flange 31 and the housing 1, and the plurality of screws are arranged at intervals along the edge of the cover plate 3. Meanwhile, a threaded sleeve is welded on the inner side surface of the housing 1, and the screw is threadedly connected to the threaded sleeve. The threaded sleeve can enhance the connection strength between the screw and the housing 1. When the nut of the screw abuts against the side surface of the flange 31, the threaded portion of the screw is connected to the threaded sleeve, and the cover plate 3 and the housing 1 can be firmly fixed together.

[0024] In addition, a waterproof pad is bonded and fixed to the surface of the cover plate 3 facing the outer shell 1. The waterproof pad is made of rubber and is located within the four side convex edges 31. The waterproof pad abuts against the edge of the outer shell 1. When the cover plate 3 is covered and fixed on the outer shell 1, the waterproof pad can improve the waterproofness between the cover plate 3 and the outer shell 1. In addition, a wire hole 13 is provided on one side wall of the accommodating cavity 11, and a through hole 33 is provided on the convex edge 31. The through hole 33 is aligned with the wire hole 13. After the wire is electrically connected to the lithium battery 2, the wire can be passed through the wire hole 13 and the through hole 33, and the wire can be conveniently led out of the outer shell 1. At the same time, the through hole 33 can also be sealed with a sealant to improve the waterproof performance.

[0025] In addition, rubber sleeves 12 are provided in the three accommodating cavities 11. The rubber sleeves 12 are arranged in a square shape. The rubber sleeves 12 are arranged with an opening on one side facing the cover plate 3. The lithium battery 2 is located in the rubber sleeves 12. The rubber sleeves 12 can play a role of shock absorption and buffering, and play a role of protecting the lithium battery 2. At the same time, three rubber pressing blocks 32 are bonded and fixed on the surface of the cover plate 3 facing the lithium battery 2. The positions of the three rubber pressing blocks 32 correspond to the positions of the three accommodating cavities 11 respectively. The rubber pressing blocks 32 abut against the lithium battery 2. After the lithium battery 2 is assembled into the accommodating cavity 11, the rubber pressing blocks 32 are pressed on the lithium battery 2, which can better fix the lithium battery 2 and prevent the lithium battery 2 from shaking.

[0026] The implementation principle of an energy storage lithium battery module of an embodiment of the utility model is as follows: during assembly, an operator places a plurality of lithium batteries 2 assembled and fixed together into a receiving cavity 11, and according to needs, some receiving cavities 11 can be left vacant without assembling lithium batteries 2 therein, thereby obtaining lithium battery 2 modules of different capacities, and then lead-out wires, close the cover plate 3, and tighten the screws to assemble the lithium battery 2.

[0027] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A lithium battery module for energy storage, characterized in that: The invention comprises a shell (1), wherein a plurality of accommodating cavities (11) are arranged at intervals inside the shell (1), wherein the accommodating cavities (11) are used to accommodate lithium batteries (2), wherein a cover plate (3) is arranged on the shell (1), wherein the cover plate (3) covers the plurality of accommodating cavities (11), and a fixing member is arranged between the cover plate (3) and the shell (1); a convex edge (31) is arranged on the edge of the cover plate (3), wherein the convex edge (31) is attached to the outer side surface of the shell (1), and wherein the fixing member comprises a plurality of screws threadedly connected to the convex edge (31) and the shell (1); The inner side surface of the housing (1) is provided with a threaded sleeve, and the screw is threadedly connected to the threaded sleeve; a rubber sleeve (12) is provided in the accommodating cavity (11), and the rubber sleeve (12) is provided with an opening facing one side of the cover plate (3), and the lithium battery (2) is located in the rubber sleeve (12); A rubber pressing block (32) is provided on the surface of the cover plate (3) facing the lithium battery (2), and the rubber pressing block (32) abuts against the lithium battery (2); A wire-passing hole (13) is provided on one side wall of the accommodating cavity (11), a through hole (33) is provided on the convex edge (31), and the through hole (33) is aligned with the wire-passing hole (13); A waterproof pad is provided on the surface of the cover plate (3) facing the outer shell (1), and the waterproof pad abuts against the edge of the outer shell (1).

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