Soft package power battery module combination device

Abstract

The utility model relates to the technical field of power batteries, and discloses a soft package power battery module combination device, which comprises a power battery module, a battery cell body, a sleeve frame, an upper fixing plate and a lower fixing plate, and the two combination mechanisms are mounted at the upper end and the lower end of the power battery module in a press fit mode correspondingly, and each combination mechanism comprises a mounting plate, a connecting frame, a connecting plate and a press fit plate. According to the device, the mounting plate is arranged, the sliding groove is formed in the surface of the mounting plate, and the bolt is clamped through the sliding groove in a sliding manner, so that when the overall sizes of the power battery modules are different, the bolt can be aligned to the lower fixing plate only by adjusting the position of the bolt on the inner wall of the sliding groove, and the bolt smoothly penetrates through the lower fixing plate; the pressing operation after threaded installation is achieved through cooperation of the nuts, the upper fixing plate or the lower fixing plate and the pressing plate are tightly connected together in a pressing mode, and therefore the application function for power battery modules of different sizes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and more specifically, to a soft-pack power battery module assembly device. Background Art

[0002] Soft-pack power batteries have the advantages of high energy density, good safety, light weight, and long cycle life. They provide a polymer shell on a liquid lithium battery, which is composed of multiple single cells to form a battery module that can meet the power requirements of the entire vehicle. When assembled, they often use a fixed template for two-way press-fit connection. However, this design cannot be synchronously adapted to battery modules of different sizes. In this case, the size of the template needs to be additionally changed to adapt. The flexibility of the combination device that uses metal parts for assembly is not high enough. Therefore, the utility model is committed to designing a soft-pack power battery module combination device that can improve the applicability. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a soft-pack power battery module assembly device, which has the advantages of strong applicability and sufficient stability.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: a soft pack power battery module assembly device, comprising

[0005] The power battery module includes the battery cell body and the casing, upper fixing plate and lower fixing plate surrounding it;

[0006] The assembly mechanism is provided in two groups and is press-fitted onto the upper and lower ends of the power battery module. The assembly mechanism includes a mounting plate, a connecting frame, a connecting plate, and a press-fit plate. The mounting plate is provided with four groups of slide grooves on the side facing the power battery module, and bolts are movably engaged within the slide grooves. Nuts are threadedly mounted on the outer surfaces of the bolts.

[0007] Among them, the four diagonals of the slide groove and the mounting plate are collinear, the bolt slides along the inner wall of the slide groove, and the other end of the bolt passes through the other side of the upper fixed plate and the lower fixed plate, and presses and installs the power battery module and the combination mechanism.

[0008] As an optimal technical solution of the present invention, the sleeve frame, upper fixed plate and lower fixed plate are arranged in sequence from top to bottom and are formed as one piece by welding. Mounting holes are provided at the sleeve frame and the four corners of the sleeve frame. The upper fixed plate and the lower fixed plate are in extrusion contact with the pressing plate on the side facing the combination mechanism.

[0009] As an optimal technical solution of the present invention, buffer pads are glued to the four corners of the pressed plate, and multiple groups of sockets are provided on the surfaces of the connecting plate and the buffer pad. The buffer pad is made of rubber blocks, and its own thickness is greater than the pressed plate in a natural state without force.

[0010] As a preferred technical solution of the present invention, the number of the jacks is four groups, which are evenly spaced along the diagonal lines of the pressed plate.

[0011] As a preferred technical solution of the present invention, the connection frame is in the shape of a hollow rectangle, the upper and lower sides of which are welded to the mounting plate and the connection plate respectively, and heat dissipation holes are provided on the surface of the connection frame.

[0012] As a preferred technical solution of the present invention, the pressing plate is fixedly connected to the connecting plate by gluing, and rectangular grooves are provided at the four corners of the pressing plate.

[0013] As a preferred technical solution of the present invention, the slide groove is provided on the side of the mounting plate facing the power battery module, and includes two sets of inner and outer limiting grooves of different widths.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This device adopts a split press-fit installation method of the power battery module and the combination mechanism to enhance the applicability of the device. By providing a mounting plate with a slide groove on its surface, and bolts slidingly connected through the slide groove, when the overall size of the power battery module is different, it is only necessary to adjust the position of the bolt on the inner wall of the slide groove so that the bolt can be aligned with the lower fixing plate, so that the bolt can pass through the lower fixing plate smoothly. The press-fit operation after the threaded installation is realized with the cooperation of the nut, and the upper fixing plate or the lower fixing plate and the press-fit plate are tightly press-fitted together, thereby realizing the applicable function for power battery modules of different sizes.

[0016] 2. A pressing plate is provided with rectangular grooves at its four corners and a buffer pad is glued thereon. A plurality of groups of jacks are provided on the surface of the buffer pad, so that the upper fixing plate or the lower fixing plate is squeezed and deformed by the pressing force generated by the bolt and nut thread installation, thereby ensuring the tightness of the connection between the upper fixing plate or the lower fixing plate and the pressing plate and making the combination of the device more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a front cutaway schematic diagram of the structure of the utility model;

[0019] Figure 3It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 4 It is an exploded schematic diagram of the structure of the utility model;

[0021] Figure 5 This is an exploded schematic diagram of the power battery module, pressing plate and buffer pad of the utility model.

[0022] In the figure: 1. Power battery module; 11. Battery cell body; 12. Frame; 13. Upper fixing plate; 14. Lower fixing plate; 15. Mounting hole; 2. Combination mechanism; 21. Mounting plate; 22. Slide groove; 23. Connecting frame; 24. Heat dissipation hole; 25. Connecting plate; 26. Pressing plate; 27. Buffer pad; 28. Bolt; 29. ​​Nut; 210. Socket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figures 1 to 5 As shown, the utility model provides a soft pack power battery module assembly device, including

[0025] The power battery module 1 includes a battery cell body 11 and a casing 12, an upper fixing plate 13 and a lower fixing plate 14 surrounding the battery cell body.

[0026] The assembly mechanism 2 is provided in two groups and is press-fitted onto the upper and lower ends of the power battery module 1. The assembly mechanism 2 includes a mounting plate 21, a connecting frame 23, a connecting plate 25, and a pressing plate 26. The mounting plate 21 is provided with four groups of slide grooves 22 on the side facing the power battery module 1. Bolts 28 are movably engaged within the slide grooves 22. Nuts 29 are threadedly mounted on the outer surfaces of the bolts 28.

[0027] The four diagonal lines of the chute 22 and the mounting plate 21 are collinear, and the bolt 28 slides along the inner wall of the chute 22. The other end of the bolt 28 penetrates the other side of the upper fixing plate 13 and the lower fixing plate 14, and presses and installs the power battery module 1 and the assembly mechanism 2.

[0028] The advantages of this solution are:

[0029] This device adopts a split press-fit installation method of the power battery module 1 and the combination mechanism 2 to enhance the applicability of the device. By providing a mounting plate 21 and opening a slide groove 22 on its surface, and slidingly clamping a bolt 28 through the slide groove 22, when the overall size of the power battery module 1 is different, it is only necessary to adjust the position of the bolt 28 on the inner wall of the slide groove 22 so that the bolt 28 can be aligned with the lower fixing plate 14, so that the bolt 28 can smoothly pass through the lower fixing plate 14, and the pressing operation after the threaded installation is realized with the cooperation of the nut 29, so that the upper fixing plate 13 or the lower fixing plate 14 and the pressing plate 26 are tightly pressed and connected together, thereby realizing the applicable function for power battery modules 1 of different sizes.

[0030] The sleeve frame 12, the upper fixing plate 13 and the lower fixing plate 14 are arranged in sequence from top to bottom and are integrally formed by welding. The sleeve frame 12 and the four corners of the sleeve frame 12 are provided with mounting holes 15. The upper fixing plate 13 and the lower fixing plate 14 are pressed into contact with the pressing plate 26 on the side facing the combination mechanism 2.

[0031] The advantages of this solution are:

[0032] The sleeve frame 12 , the upper fixing plate 13 and the lower fixing plate 14 together form the first layer of protection for the cell body 11 , which are respectively connected to the pressing plate 26 by threaded pressing through the upper fixing plate 13 and the lower fixing plate 14 , thereby realizing a detachable combination function.

[0033] The four corners of the pressing plate 26 are glued with cushion pads 27. The surfaces of the connecting plate 25 and the cushion pad 27 are provided with a plurality of groups of jacks 210. The cushion pad 27 is made of a rubber block. When it is in a natural state without any force, its thickness is greater than that of the pressing plate 26.

[0034] The advantages of this solution are:

[0035] By providing a pressing plate 26 with rectangular grooves at its four corners and gluing a buffer pad 27 thereto, a plurality of groups of insertion holes 210 are provided on the surface of the buffer pad 27, so that the upper fixing plate 13 or the lower fixing plate 14 and the buffer pad 27 are squeezed and deformed by the pressing force generated by the threaded installation of the bolts 28 and the nuts 29, thereby ensuring the tightness of the connection between the upper fixing plate 13 or the lower fixing plate 14 and the pressing plate 26 and making the assembly of the device more stable.

[0036] There are four groups of jacks 210, which are evenly spaced along the diagonal of the pressing plate 26.

[0037] The advantages of this solution are:

[0038] There are four groups of jacks 210, which can correspond to four power battery modules 1 of different sizes, thereby realizing the applicability function of the device.

[0039] The connection frame 23 is in the shape of a hollow rectangle, and its upper and lower sides are welded to the mounting plate 21 and the connection plate 25 respectively. The surface of the connection frame 23 is provided with heat dissipation holes 24.

[0040] The advantages of this solution are:

[0041] The connecting frame 23 is used to connect the mounting plate 21 and the connecting plate 25 and provide support therefor. The heat dissipation holes 24 are provided to increase the contact area with the air, thereby achieving the function of auxiliary heat dissipation.

[0042] The pressing plate 26 is fixedly connected to the connecting plate 25 by gluing, and rectangular grooves are provided at its four corners;

[0043] The advantages of this solution are:

[0044] The pressing plate 26 is made of fireproof material and is in direct contact with the upper fixing plate 13 or the lower fixing plate 14 . The two are connected and contacted by pressing. The rectangular groove on the surface of the pressing plate 26 is used to install the buffer pad 27 .

[0045] The slide groove 22 is provided on the side of the mounting plate 21 facing the power battery module 1 and includes two sets of inner and outer limiting grooves of different widths.

[0046] The advantages of this solution are:

[0047] The slide groove 22 is used to limit and slide the non-threaded end of the bolt 28, so that the bolt 28 can move freely inside the slide groove 22 while being limited by the connecting plate 25, the pressing plate 26, the buffer pad 27 and the upper fixing plate 13 or the lower fixing plate 14.

[0048] The working principle and use process of this utility model:

[0049] The device is composed of a power battery module 1 and a combination mechanism 2. When the volume of the battery body 11 is determined, the sleeve frame 12, the upper fixing plate 13 and the lower fixing plate 14 corresponding to the size are customized and then welded into an integral body. The surface of the lower fixing plate 14 is provided with a mounting hole 15 to facilitate subsequent press-fit fixation. According to the size of the power battery module 1, the bolt 28 is adjusted to slide on the inner wall of the slide groove 22 so that the bolt 28 coincides with the socket 210. The power battery module 1 and the combination mechanism 2 are placed in contact with each other, and the bolt 28 is passed through the connecting plate 25, the pressing plate 26, the upper fixing plate 1 in sequence. 3 or the lower fixing plate 14, and then the nut 29 is threadedly installed on the outer surface of the bolt 28, and the pressing plate 26 and the upper fixing plate 13 or the lower fixing plate 14 are pressed tightly, thereby realizing the combined operation of the power battery module 1 and the combination mechanism 2. The surface of the connecting frame 23 is provided with heat dissipation holes 24, so that the heat of the power battery module 1 is taken away by air cooling. The pressing plate 26 is made of fireproof material and can form a fireproof function. If the size of the power battery module 1 changes, it is only necessary to adjust the position of the bolt 28 inside the slide groove 22 to achieve reassembly with the power battery module 1, and the installation efficiency is high.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soft-pack power battery module assembly device, characterized by: include A power battery module (1) comprises a battery cell body (11), a casing (12) surrounding the battery cell body, an upper fixing plate (13) and a lower fixing plate (14); A combination mechanism (2) is provided in two groups and is respectively press-fitted and mounted on the upper and lower ends of the power battery module (1). The combination mechanism (2) comprises a mounting plate (21), a connecting frame (23), a connecting plate (25) and a pressing plate (26). The mounting plate (21) is provided with four groups of slide grooves (22) on a side facing the power battery module (1), and bolts (28) are movably clamped inside the slide grooves (22). Nuts (29) are threadedly mounted on the outer surfaces of the bolts (28); The four diagonal lines of the slide groove (22) and the mounting plate (21) are collinear, the bolt (28) slides along the inner wall of the slide groove (22), the other end of the bolt (28) penetrates to the other side of the upper fixing plate (13) and the lower fixing plate (14), and presses and installs the power battery module (1) and the combination mechanism (2).

2. The soft-pack power battery module assembly device according to claim 1, characterized in that: The sleeve frame (12), the upper fixing plate (13) and the lower fixing plate (14) are arranged in sequence from top to bottom and are integrally formed by welding. Mounting holes (15) are provided at the four corners of the sleeve frame (12). The upper fixing plate (13) and the lower fixing plate (14) are in press contact with the pressing plate (26) on one side facing the combined mechanism (2).

3. The soft-pack power battery module assembly device according to claim 1, characterized in that: Buffer pads (27) are glued to the four corners of the pressing plate (26), and multiple groups of jacks (210) are provided on the surfaces of the connecting plate (25) and the buffer pad (27). The buffer pad (27) is made of a rubber block, and its thickness is greater than that of the pressing plate (26) when it is in a natural state without being stressed.

4. The soft-pack power battery module assembly device according to claim 3, characterized in that: The number of the insertion holes (210) is four groups, and they are evenly spaced along the diagonal line of the pressing plate (26).

5. The soft-pack power battery module assembly device according to claim 1, characterized in that: The connection frame (23) is in the shape of a hollow rectangle, and its upper and lower sides are respectively welded to the mounting plate (21) and the connection plate (25). The surface of the connection frame (23) is provided with heat dissipation holes (24).

6. The soft-pack power battery module assembly device according to claim 1, characterized in that: The pressing plate (26) is fixedly connected to the connecting plate (25) by gluing, and rectangular grooves are provided at the four corners of the pressing plate.

7. The soft-pack power battery module assembly device according to claim 1, characterized in that: The slide groove (22) is provided on a side of the mounting plate (21) facing the power battery module (1), and comprises two sets of inner and outer limiting grooves of different widths.

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