Cylindrical battery cell packaging and fixing device

Abstract

The utility model relates to the technical field of battery cell assembly, and provides a cylindrical battery cell integral mounting and fixing device which comprises a first fixed mounting frame and a second fixed mounting frame, one side of the first fixed mounting frame is provided with an inserting area for inserting the cylindrical battery cells, and the inserting area is provided with a plurality of inserting stations for inserting the cylindrical battery cells; the second fixed mounting frame is arranged opposite to the first fixed mounting frame, an assembling area corresponding to the inserting area is arranged on the side, facing the first fixed mounting frame, of the second fixed mounting frame, and assembling stations in one-to-one correspondence with the inserting stations are arranged in the assembling area; wrapping limiting parts are arranged on the peripheries of the inserting area and the assembling area in a surrounding mode; and the first fixed mounting frame is fixedly connected with the second fixed mounting frame through a connecting piece in the thickness direction in a penetrating manner. The cylindrical battery cell packaging and fixing device has the beneficial effects that the structure is simple, the cylindrical battery cell mounting efficiency is high, the protection and limiting effects are good, the weight of a battery module can be reduced, and the energy density of the battery module can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery cell assembly, and in particular to a cylindrical battery cell assembly and fixing device. Background Art

[0002] In the prior art, most battery energy storage modules are square cell modules, and most square cell modules are formed by arranging and bundling multiple cylindrical cells through two end plates and two tie ties, or four end plates to form a square cell module, and the square cell module finally needs to be further installed and fixed with the box body in the battery energy storage module through a top pressure plate, a baffle and screws, etc., before it can be finally assembled and fixed to form a battery energy storage module.

[0003] It can be seen that the cell module in the battery energy storage module in the prior art has the disadvantages of complex assembly and fixing structural parts, cumbersome assembly process, increased product weight and reduced energy density.

[0004] In view of this, there is an urgent need for a new type of battery cell module installation and fixing device in the market to solve the above-mentioned problems existing in the battery cell module in the prior art. Utility Model Content

[0005] The disclosed embodiment provides a cylindrical battery cell assembly and fixing device to solve the problems in the prior art of complex assembly and fixing structural parts of battery cell modules, cumbersome assembly procedures, increased product weight, and reduced energy density.

[0006] The cylindrical battery cell assembly and fixing device provided in the embodiment of the present disclosure includes a first fixing frame and a second fixing frame;

[0007] One side of the first fixing frame has an insertion area for inserting cylindrical cells, and the insertion area has a plurality of insertion stations for inserting cylindrical cells;

[0008] The second fixing frame is arranged opposite to the first fixing frame, and has a fitting area corresponding to the insertion area on a side facing the first fixing frame, and the fitting area is provided with fitting stations corresponding to the insertion stations one by one;

[0009] Wherein, the peripheries of the insertion area and the assembly area are respectively surrounded by wrapping limiting parts;

[0010] The first fixing frame is interlaced and fixedly connected with the second fixing frame along the thickness direction through a connecting piece.

[0011] In one possible implementation manner, the insertion station is a circular recessed hole recessed toward the first fixing frame;

[0012] And a plurality of the insertion stations are arranged closely to form a rectangular insertion area.

[0013] In one possible implementation manner, the fitting station is a circular recessed hole recessed toward the second fixing frame, and has the same size as the insertion station and is positioned one-to-one with the insertion station.

[0014] In one possible implementation manner, the wrapping limiting portion is configured as a wrapping plate that is in a square ring shape as a whole;

[0015] The plate body of the wrapping plate is respectively recessed outward to form a plurality of recessed arc bodies which are adapted to the curvature of the circular recessed holes.

[0016] In one possible implementation manner, the first fixing frame is further provided with a protruding connecting column in the gap between the insertion stations;

[0017] The second fixing frame is also provided with a docking column corresponding to the connecting column in a protruding manner in the gap between the assembly stations;

[0018] When the first fixing frame is connected to the second fixing frame correspondingly, the docking column and the connecting column are in corresponding supporting contact.

[0019] In one possible implementation manner, the connecting column and the docking column are respectively provided with threaded holes along their axial directions;

[0020] The connecting member is configured as a bolt, and the connecting column is fixedly connected to the docking column by being screwed with the threaded hole.

[0021] In one possible implementation manner, the bottoms of the insertion station and the assembly station are respectively provided with hollow holes for arranging the battery cell busbars.

[0022] In one possible implementation manner, both the first fixing frame and the second fixing frame are plastic parts;

[0023] The wrapping limit portion is integrally injection-molded with the first fixing frame and the second fixing frame respectively.

[0024] In one embodiment, it further includes a box shell;

[0025] The box shell has a receiving cavity for receiving the first fixing bracket and the second fixing bracket;

[0026] The height of the side wall of the box shell is at least greater than the installation distance between the first fixing bracket and the second fixing bracket.

[0027] In one possible implementation manner, the inner bottom wall of the box shell is also provided with a raised fixing point;

[0028] The insertion end of the connecting piece can be connected and fixed correspondingly with the fixing point.

[0029] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0030] When the cylindrical battery cell assembly and fixing device provided by the embodiment of the present disclosure is in use, one end of the cylindrical battery cell can be inserted into the insertion area of ​​the first fixing frame through multiple insertion stations one by one, and after the first fixing frame and the second fixing frame are buckled together, the other ends of the multiple cylindrical battery cells can be inserted into the multiple assembly stations in the second fixing frame one by one, so as to directly realize the installation and fixation of the two ends of the cylindrical battery cells, and the connecting piece 4 can connect the first fixing frame with the second fixing frame through and through in the thickness direction to realize the assembly and fixation of the multiple cylindrical battery cells, and the wrapping and limiting parts in the first fixing frame and the second fixing frame can also be connected at the same time, so as to realize further wrapping and limiting protection of the multiple cylindrical battery cells on the outer edge, and fully ensure the installation stability of the multiple cylindrical battery cells.

[0031] The cylindrical battery cell assembly and fixing device has the advantages of simple structure, high cylindrical battery cell installation efficiency, good protective limiting effect, and the ability to reduce the weight of a battery module and improve the energy density of a battery module.

[0032] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which:

[0034] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0035] Figure 1 An exploded view of a cylindrical battery cell assembly and fixing device provided in an embodiment of the present disclosure is shown;

[0036] Figure 2 An assembly diagram of a cylindrical battery cell assembly and fixing device provided by an embodiment of the present disclosure is shown;

[0037] Figure 3 A schematic diagram of a first fixing frame in a cylindrical battery cell assembly fixing device provided in an embodiment of the present disclosure is shown;

[0038] Figure 4 A schematic diagram of a second fixing frame in the cylindrical battery cell assembly and fixing device provided in an embodiment of the present disclosure is shown.

[0039] Explanation of the numbers in the figure: 1. First fixed mounting frame; 11. Insertion station; 12. Connecting column; 2. Second fixed mounting frame; 21. Assembly station; 22. Docking column; 3. Wrapping limiter; 31. Recessed arc; 4. Connector; 5. Box shell; 51. Fixed point. DETAILED DESCRIPTION

[0040] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0041] The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0042] Combination Figure 1 and Figure 2 As shown, the embodiment of the present disclosure provides a cylindrical battery cell assembly fixing device, which includes a first fixing frame 1 and a second fixing frame 2; one side of the first fixing frame 1 has an insertion area for inserting cylindrical batteries, and the insertion area has a plurality of insertion stations 11 for inserting cylindrical batteries; the second fixing frame 2 is arranged opposite to the first fixing frame 1, and the side facing the first fixing frame 1 has a fitting area corresponding to the insertion area, and the fitting area is provided with fitting stations 21 corresponding to the insertion stations 11 one by one;

[0043] The insertion area and the assembly area are respectively surrounded by wrapping limit parts 3; the first fixing frame 1 is inserted and fixedly connected with the second fixing frame 2 along the thickness direction through the connecting piece 4.

[0044] When the cylindrical battery cell assembly and fixing device is used to assemble and fix cylindrical batteries, first, one end of the cylindrical battery cell can be inserted into the insertion area of ​​the first fixing frame 1 through multiple insertion stations 11 one by one to achieve preliminary pre-installation and fixation. When the insertion area in the first fixing frame 1 is full of cylindrical batteries, the first fixing frame 1 and the second fixing frame 2 are then buckled and installed face to face. At this time, the other ends of the multiple cylindrical batteries can be inserted into the multiple assembly stations 21 in the second fixing frame 2 one by one to achieve the installation and fixation of the other ends of the cylindrical batteries. Finally, the first fixing frame 1 is inserted and fixedly connected with the second fixing frame 2 along the thickness direction through the connecting piece 4, so that the assembly and fixation of the multiple cylindrical batteries can be achieved.

[0045] In addition, since the insertion area in the first fixed frame 1 and the fitting area in the second fixed frame 2 are respectively surrounded by wrapping limiting parts 3, the first fixed frame 1 and the second fixed frame 2 are buckled face to face, and the wrapping limiting parts 3 of the two can also be connected at the same time, so as to achieve further wrapping and limiting protection for the multiple cylindrical battery cells along the outer edge, and fully ensure the installation stability of the multiple cylindrical battery cells.

[0046] Compared with the prior art method of forming a square cell module by fixing cylindrical cells by end plates and cable ties, the cylindrical cell assembly and fixing device provided in the embodiment of the present invention can form a plurality of workstations for individually fixing cylindrical cells by correspondingly buckling the first fixing frame 1 and the second fixing frame 2, and can further wrap and protect the outer edges of the plurality of cylindrical cells through the wrapping limit portion 3. It has the advantages of simple structure, high cylindrical cell installation efficiency, good protective limit effect, ability to reduce battery module weight, and improvement of battery module energy density.

[0047] In one possible implementation manner, the insertion station 11 is a circular recessed hole recessed toward the first fixing frame 1 ; and a plurality of insertion stations 11 are closely arranged to form a rectangular insertion area.

[0048] Specific, combined Figure 3 Further detailed description, the insertion station 11 is set as a circular recessed hole position recessed toward the first fixing frame 1, and the aperture of the circular recessed hole position can be adapted according to the diameter of the cylindrical battery cell to be installed. Specifically, the aperture of the circular recessed hole position and the diameter of the cylindrical battery cell to be installed can be set to a transition fit or a small clearance fit assembly relationship to ensure the installation firmness of each cylindrical battery cell in each circular recessed hole position.

[0049] In addition, multiple insertion stations 11 are arranged closely together to form a rectangular insertion area. Several insertion stations 11 can be first arranged in a row, and the insertion stations 11 between two adjacent rows are staggered with gaps. In this way, the rectangular insertion area can accommodate the insertion stations 11 to the greatest extent, thereby further improving the energy density of the battery module.

[0050] The specific arrangement of the above-mentioned insertion station 11 has the beneficial effects of simple structure and being able to improve the energy density of the battery module.

[0051] In one possible implementation manner, the fitting station 21 is a circular recessed hole recessed toward the second fixing frame 2 , and has the same size as the insertion station 11 and is directly opposite in position.

[0052] Specific, combined Figure 4To further explain in detail, the assembly station 21 is set as a circular recessed hole that is recessed toward the second fixing frame 2, and is of the same size and directly opposite to the insertion station 11. In this way, when the first fixing frame 1 and the second fixing frame 2 are directly opposite to each other, the other ends of the multiple cylindrical battery cells preliminarily installed and fixed in the insertion station 11 can be respectively inserted and fixed in the circular recessed holes in the assembly station 21 one by one.

[0053] Similarly, several assembly stations 21 may be arranged in a row, and the assembly stations 21 between two adjacent rows may be staggered with gaps.

[0054] In addition, it is worth mentioning that in the gap formed by multiple insertion stations 11 or multiple assembly stations 21, a temperature control medium can be filled and set accordingly to stabilize the ambient temperature of the cylindrical battery cell so that it can be in an optimal chemical reaction temperature range.

[0055] In one possible implementation manner, the wrapping limiting portion 3 is configured as a wrapping plate that is in a square ring shape as a whole; and the plate body of the wrapping plate is respectively recessed outward to form a plurality of recessed arc bodies 31 that are adapted to the curvature of the circular recessed holes.

[0056] Specific, combined Figure 3 or Figure 4 According to further detailed description, the wrapping limit portion 3 is specifically configured as a wrapping plate in an overall square ring shape, and the plate body of the wrapping plate is respectively recessed outward to form a plurality of recessed arcs 31 adapted to the curvature of the circular recessed holes, so that the wrapping limit portion 3 can wrap and limit the plurality of cylindrical battery cells at the outer edge of the insertion area or the outer edge of the assembly area with the maximum contact area, thereby further improving the limiting installation effect of the wrapping limit portion 3 on the plurality of cylindrical battery cells in the length and width directions.

[0057] In one embodiment, the first fixing frame 1 is further provided with a protruding connecting column 12 in the gap between the insertion stations 11; the second fixing frame 2 is further provided with a protruding docking column 22 corresponding to the connecting column 12 in the gap between the assembly stations 21; when the first fixing frame 1 and the second fixing frame 2 are connected correspondingly, the docking column 22 and the connecting column 12 are correspondingly supported and abutted.

[0058] Specific, combined Figure 3 and Figure 4 To further explain in detail, the above-mentioned connecting columns 12 and docking columns 22 are arranged in multiple groups in a one-to-one correspondence, and are respectively distributed in the insertion area in the first fixed frame 1 and the matching area in the second fixed frame 2. In this way, when the first fixed frame 1 and the second fixed frame 2 are connected correspondingly, the multiple docking columns 22 and the multiple connecting columns 12 are respectively supported and abutted in a one-to-one correspondence, and the weight of the first fixed frame 1 is evenly carried.

[0059] In addition, in order to facilitate the docking of the connecting column 12 and the docking column 22, a flaring hole can be set at the docking end of one and a shrinking platform can be set at the docking end of the other, so that the two can achieve the beneficial effect of automatic guidance and centered docking.

[0060] The specific arrangement of the connecting column 12 and the docking column 22 has the beneficial effects of simple structure and being able to evenly bear the weight of the first fixing frame 1 .

[0061] In one embodiment, the connecting column 12 and the docking column 22 are respectively provided with threaded holes along their axial directions; the connecting member 4 is configured as a bolt, and the connecting column 12 and the docking column 22 are fixedly connected by screwing with the threaded hole.

[0062] Specific, combined Figure 2 To further explain in detail, threaded holes are respectively opened at the central axis of the connecting column 12 and the docking column 22, and the connecting member 4 is specifically configured as a bolt, so that the connecting member 4 can be respectively installed with the connecting column 12 and the docking column 22 by means of threaded connection, and the two are firmly and stably connected.

[0063] The specific arrangement of the connecting member 4 has the beneficial effects of simple structure, convenient and firm connection.

[0064] In one possible implementation manner, the bottoms of the insertion station 11 and the assembly station 21 are respectively provided with hollow holes for arranging the cell busbars.

[0065] Specific, combined Figure 3 and Figure 4 To further explain in detail, the bottoms of the insertion station 11 and the assembly station 21 are respectively provided with hollow holes for setting the battery cell busbars, so that the anode busbars or the cathode busbars can be respectively set to achieve the function of connecting multiple cylindrical battery cells in parallel or in series.

[0066] In addition, the hollow holes can also reduce the weight of the first fixing frame 1 and the second fixing frame 2 to a certain extent, thereby further making the overall weight of the cylindrical battery cell assembly and fixing device lighter.

[0067] In one possible implementation manner, the first fixing frame 1 and the second fixing frame 2 are both plastic parts; and the wrapping limit portion 3 is integrally injection-molded with the first fixing frame 1 and the second fixing frame 2 respectively.

[0068] The first fixing frame 1 and the second fixing frame 2 are respectively plastic parts, and the wrapped limiting portion 3 is connected to the first fixing frame 1 and the second fixing frame 2 by integral injection molding. This facilitates the processing and manufacturing of the first fixing frame 1 and the second fixing frame 2. In addition, the first fixing frame 1 and the second fixing frame 2 made of plastic material can also have the beneficial effect of reducing the overall weight of the cylindrical battery cell assembly and fixing device.

[0069] In one embodiment, the cylindrical battery cell assembly and fixing device also includes a box shell 5; the box shell 5 has a receiving cavity for accommodating the first fixing frame 1 and the second fixing frame 2; the side wall height of the box shell 5 is at least greater than the installation spacing with the first fixing frame 1 and the second fixing frame 2.

[0070] Specific, combined Figure 1 and Figure 2 To further explain in detail, by providing a box shell 5, the first fixing frame 1 and the second fixing frame 2 can be fixedly placed in the accommodating cavity in the box shell 5 after being buckled, and a handle or a hook can be correspondingly provided in the outer peripheral wall of the box shell 5. This can further wrap and protect the cylindrical battery cell on the one hand, and on the other hand, providing the box shell 5 also facilitates the movement and transportation of the cylindrical battery cell assembly and fixing device.

[0071] The side wall height of the box shell 5 is set to be at least greater than the installation spacing between the first fixing frame 1 and the second fixing frame 2 , so that the first fixing frame 1 and the second fixing frame 2 can be completely placed inside the box shell 5 after being buckled.

[0072] In one embodiment, the inner bottom wall of the box shell 5 is further provided with a protruding fixing point 51 ; the insertion end of the connecting member 4 can be connected and fixed correspondingly to the fixing point 51 .

[0073] Specific, combined Figure 2 To further explain in detail, the above-mentioned fixing point 51 can be set in a one-to-one correspondence with the docking column 22 in the second fixing frame 2, and a recessed threaded hole can also be set in the fixing point 51, which is connected and fixed to one end of the connecting member 4 by a threaded connection, thereby ensuring the installation stability of the first fixing frame 1 and the second fixing frame 2 in the box shell 5 after buckling.

[0074] The specific arrangement of the above-mentioned fixing points 51 has the beneficial effects of simple structure and convenient fixing of the first fixing frame 1 and the second fixing frame 2 on the box shell 5 .

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0076] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A cylindrical battery cell assembly and fixing device, characterized in that: include: A first fixed mounting frame (1) has an insertion area for inserting cylindrical battery cells on one side, wherein the insertion area has a plurality of insertion stations (11) for inserting cylindrical battery cells; A second fixed mounting frame (2) is arranged opposite to the first fixed mounting frame (1), and has a mounting area corresponding to the insertion area on a side facing the first fixed mounting frame (1), and the mounting area is provided with mounting stations (21) corresponding one to one with the insertion stations (11); Wherein, the peripheries of the insertion area and the fitting area are respectively surrounded by a wrapping limiting portion (3); The first fixing frame (1) is interlaced and fixedly connected with the second fixing frame (2) along the thickness direction via a connecting piece (4).

2. The cylindrical battery cell assembly and fixing device according to claim 1, characterized in that: The insertion station (11) is a circular recessed hole that is recessed toward the first fixing frame (1); Furthermore, a plurality of the insertion stations (11) are arranged closely together to form a rectangular insertion area.

3. The cylindrical battery cell assembly and fixing device according to claim 2, characterized in that: The assembly station (21) is a circular recessed hole that is recessed toward the second fixing frame (2) and has the same size as the insertion station (11) and is positioned one-to-one with the insertion station (11).

4. The cylindrical battery cell assembly and fixing device according to claim 3, characterized in that: The wrapping limiting portion (3) is configured as a wrapping plate that is in the shape of a square ring as a whole; The plate body of the wrapping plate is respectively recessed outwards to form a plurality of recessed arc bodies (31) that are adapted to the arc of the circular recessed holes.

5. The cylindrical battery cell assembly and fixing device according to claim 1, characterized in that: The first fixing frame (1) is also provided with a protruding connecting column (12) in the gap between the insertion stations (11); The second fixing frame (2) is also provided with a docking column (22) protruding in the gap between the assembly stations (21) and corresponding to the connecting column (12); When the first fixing frame (1) and the second fixing frame (2) are connected correspondingly, the docking column (22) and the connecting column (12) are in corresponding supporting contact.

6. The cylindrical battery cell assembly and fixing device according to claim 5, characterized in that: The connecting column (12) and the docking column (22) are respectively provided with threaded holes along their axial directions; The connecting member (4) is configured as a bolt, and the connecting column (12) is fixedly connected to the docking column (22) by being screwed with the threaded hole.

7. The cylindrical battery cell assembly and fixing device according to claim 1, characterized in that: The bottoms of the insertion station (11) and the assembly station (21) are respectively provided with hollow holes for arranging the battery core busbars.

8. The cylindrical battery cell assembly and fixing device according to claim 1, characterized in that: The first fixing frame (1) and the second fixing frame (2) are both plastic parts; Furthermore, the wrapping limiting portion (3) is integrally injection-molded with the first fixing frame (1) and the second fixing frame (2).

9. The cylindrical battery cell assembly and fixing device according to any one of claims 1 to 8, characterized in that: Also includes a box shell (5); The box shell (5) has a receiving cavity for receiving the first fixing frame (1) and the second fixing frame (2); The height of the side wall of the box shell (5) is at least greater than the installation distance between the first fixing frame (1) and the second fixing frame (2).

10. The cylindrical battery cell assembly and fixing device according to claim 9, characterized in that: The inner bottom wall of the box shell (5) is also provided with a raised fixing point (51); The insertion end of the connecting member (4) can be connected and fixed in a corresponding manner to the fixing point (51).

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