Lithium battery PACK structure

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a lithium battery PACK structure which comprises a base, the upper surface of the base is fixedly connected with an end plate, the outer wall of the end plate is fixedly connected with a lithium battery body, the inner wall of the end plate is provided with a groove, the outer wall of the lithium battery body is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with the end plate. A flexible connecting plate is arranged on the outer wall of the fixing plate, a bent plate is arranged on the outer wall of the flexible connecting plate, and the outer wall of the bent plate is arranged on the outer wall of the fixing plate. According to the utility model, the end plates fix the L-shaped side plates through the screws to fix the lithium battery body, the lithium battery body is secondarily fixed by the pressing strips through the screws when the L-shaped side plates are fixed, and the grooves and the inner buckling columns of the end plates are fixed on the box body of the lithium battery body when the pressing strips are fixed, so that the lithium battery body can be fixed; and the PACK strength of the battery pack is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to a lithium battery PACK structure. Background Technology

[0002] A lithium battery pack structure refers to a structure formed by combining many individual lithium batteries in a specific way and equipping them with corresponding protection circuits, casings and other components. Compared with traditional design schemes, it improves the strength of the pack structure and facilitates module fixing and terminal wiring.

[0003] Traditional lithium battery pack structures are relatively weak in resisting external mechanical forces such as impacts, vibrations, and bumps during use. At the same time, the outer shell of traditional lithium battery pack structures is prone to deformation, which can damage the internal battery modules and cells. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a lithium battery PACK structure, which aims to improve the problem of insufficient strength of the lithium battery PACK structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A lithium battery pack structure includes a base, an end plate fixedly connected to the upper surface of the base, a lithium battery body fixedly connected to the outer wall of the end plate, a groove formed on the inner wall of the end plate, a fixing plate fixedly connected to the outer wall of the lithium battery body, a flexible connecting plate provided on the outer wall of the fixing plate, a bent plate provided on the outer wall of the flexible connecting plate, the outer wall of the bent plate being disposed on the outer wall of the fixing plate, and a connecting component provided on the outer wall of the end plate, the connecting component being used to prevent the lithium battery body from falling off.

[0007] Preferably, the connecting assembly includes a screw on the outer wall of the end plate, the outer wall of the screw being disposed on the outer wall of the end plate, and a pressure strip being disposed on the outer wall of the screw.

[0008] Preferably, the outer wall of the pressure strip is fixedly connected to the outer wall of the lithium battery body, and a ventilation opening is provided inside the pressure strip.

[0009] Preferably, a connecting top plate is fixedly connected to the upper surface of the bent plate, and an upper bottom plate is fixedly connected to the outer wall of the connecting top plate.

[0010] Preferably, a pole post is fixedly connected to the lower surface of the upper base plate.

[0011] Preferably, the lower surface of the pole is fixedly connected to the upper surface of the end plate.

[0012] Preferably, the inner wall of the end plate is fixedly connected with an inner buckle post, and the outer wall of the lithium battery body is provided with an L-shaped side plate.

[0013] Preferably, the outer wall of the L-shaped side plate is fixedly connected to the outer wall of the end plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the end plate is fixed to the lithium battery body by screws to fix the L-shaped side plate. When fixing the L-shaped side plate, the pressure strip is then fixed to the lithium battery body again by screws. When fixing the pressure strip, the groove and inner buckle of the end plate are fixed to the housing of the lithium battery body, thereby achieving the effect of fixing the lithium battery body and improving the strength of the battery pack.

[0016] 2. In this utility model, the fixed plate is connected to the flexible connecting plate, the flexible connecting plate is connected to the bent plate, and the bent plate is connected to the top plate and the bottom plate to facilitate the series and parallel connection of the modules. The pressure strip has ventilation holes inside, and the L-shaped side plate makes the bottom of the lithium battery body that is fixed therein hollow, so that the lithium battery body can be placed on the outside, which helps the overall device to dissipate heat. Attached Figure Description

[0017] Figure 1 This is a perspective view of a lithium battery PACK structure proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the pressure strip of a lithium battery PACK structure proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of an L-shaped side plate of a lithium battery PACK structure proposed in this utility model.

[0020] Legend:

[0021] 1. Base; 2. Lithium battery body; 3. End plate; 4. Groove; 5. Screw; 6. Pressure strip; 7. Fixing plate; 8. Flexible connection plate; 9. Bend plate; 10. Connecting top plate; 11. Upper bottom plate; 12. Terminal post; 13. Inner buckle post; 14. L-shaped side plate; 15. Ventilation opening. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 The present invention provides an embodiment of a lithium battery PACK structure, including a base 1, an end plate 3 fixedly connected to the upper surface of the base 1, a lithium battery body 2 fixedly connected to the outer wall of the end plate 3, a groove 4 formed in the inner wall of the end plate 3, a fixing plate 7 fixedly connected to the outer wall of the lithium battery body 2, a flexible connecting plate 8 provided on the outer wall of the fixing plate 7, a bent plate 9 provided on the outer wall of the flexible connecting plate 8, the outer wall of the bent plate 9 being provided on the outer wall of the fixing plate 7, and a connecting component provided on the outer wall of the end plate 3, the connecting component being used to prevent the lithium battery body 2 from falling off.

[0024] Specifically, the base 1 is used to fix the end plate 3, the end plate 3 is used to fix the lithium battery body 2, the end plate 3 has a groove 4, the lithium battery body 2 is used to fix the fixing plate 7, the fixing plate 7 is used to fix the flexible connecting plate 8, and the flexible connecting plate 8 is used to connect the bent plate 9 to the outer wall of the fixing plate 7.

[0025] Reference Figure 1 and Figure 3 The connecting components include: a screw 5 is provided on the outer wall of the end plate 3; the outer wall of the screw 5 is provided on the outer wall of the end plate 3; a pressure strip 6 is provided on the outer wall of the screw 5; the outer wall of the pressure strip 6 is fixedly connected to the outer wall of the lithium battery body 2; a ventilation hole 15 is provided inside the pressure strip 6; a connecting top plate 10 is fixedly connected to the upper surface of the bent plate 9; an upper bottom plate 11 is fixedly connected to the outer wall of the connecting top plate 10; and an electrode post 12 is fixedly connected to the lower surface of the upper bottom plate 11.

[0026] Specifically, the end plate 3 is fixed to the pressure strip 6 by screws 5, the pressure strip 6 has a ventilation opening 15, the bent plate 9 is used to fix the top plate 10, and the top plate 10 is used to fix the bottom plate 11.

[0027] Reference Figure 1 and Figure 2 The lower surface of the electrode post 12 is fixedly connected to the upper surface of the end plate 3. The inner wall of the end plate 3 is fixedly connected to the inner buckle post 13. The outer wall of the lithium battery body 2 is provided with an L-shaped side plate 14, and the outer wall of the L-shaped side plate 14 is fixedly connected to the outer wall of the end plate 3.

[0028] Specifically, end plate 3 is used to fix the terminal post 12, end plate 3 is used to fix the inner buckle post 13, end plate 3 is used for the L-shaped side plate 14, and L-shaped side plate 14 is used to fix the lithium battery body 2.

[0029] Working principle: When using this device, the lithium battery body 2 is first fixed by the L-shaped side plate 14 through the end plate 3 and screws 5. After the L-shaped side plate 14 is fixed, the pressure strip 6 is used to fix the lithium battery body 2 a second time through screws 5. After the pressure strip 6 is fixed, the groove 4 and inner buckle 13 of the end plate 3 are fixed to the housing of the lithium battery body 2, thereby achieving the effect of fixing the lithium battery body 2 and improving the strength of the battery pack. When multiple modules need to be connected in series and parallel, the flexible connection plate 8 is connected through the fixing plate 7, and the flexible connection plate 8 connects... The bending plate 9 is connected to the top plate 10 and the bottom plate 11 to facilitate the series and parallel connection of the modules. A ventilation hole 15 is opened inside the pressure strip 6. The L-shaped side plate 14 makes the bottom of the lithium battery body 2 that is fixed to it hollow, so that the lithium battery body 2 can be placed on the outside, which helps the overall device to dissipate heat. Using this device can not only prevent external forces from damaging the modules and cells of the lithium battery body 2, but also avoid releasing a lot of heat during use, reducing battery life and causing dangerous accidents.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lithium battery PACK structure, comprising a base (1), characterized in that: An end plate (3) is fixedly connected to the upper surface of the base (1). A lithium battery body (2) is fixedly connected to the outer wall of the end plate (3). A groove (4) is provided on the inner wall of the end plate (3). A fixing plate (7) is fixedly connected to the outer wall of the lithium battery body (2). A flexible connecting plate (8) is provided on the outer wall of the fixing plate (7). A bent plate (9) is provided on the outer wall of the flexible connecting plate (8). The outer wall of the bent plate (9) is provided on the outer wall of the fixing plate (7). A connecting component is provided on the outer wall of the end plate (3). The connecting component is used to prevent the lithium battery body (2) from falling off.

2. The lithium battery PACK structure according to claim 1, characterized in that: The connecting assembly includes a screw (5) on the outer wall of the end plate (3), the outer wall of the screw (5) being disposed on the outer wall of the end plate (3), and a pressure strip (6) on the outer wall of the screw (5).

3. A lithium battery PACK structure according to claim 2, characterized in that: The outer wall of the pressure strip (6) is fixedly connected to the outer wall of the lithium battery body (2), and the inside of the pressure strip (6) is provided with a ventilation opening (15).

4. A lithium battery PACK structure according to claim 3, characterized in that: The upper surface of the curved plate (9) is fixedly connected to a connecting top plate (10), and the outer wall of the connecting top plate (10) is fixedly connected to an upper bottom plate (11).

5. A lithium battery PACK structure according to claim 4, characterized in that: The lower surface of the upper base plate (11) is fixedly connected to the pole post (12).

6. A lithium battery PACK structure according to claim 5, characterized in that: The lower surface of the pole post (12) is fixedly connected to the upper surface of the end plate (3).

7. A lithium battery PACK structure according to claim 1, characterized in that: The inner wall of the end plate (3) is fixedly connected with an inner buckle post (13), and the outer wall of the lithium battery body (2) is provided with an L-shaped side plate (14).

8. A lithium battery PACK structure according to claim 7, characterized in that: The outer wall of the L-shaped side plate (14) is fixedly connected to the outer wall of the end plate (3).

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