Battery cell grouping device

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery cell grouping device. The battery cell grouping device comprises a cold plate jig and a battery cell jig, the cold plate jig and the battery cell jig are oppositely arranged in a first direction, and the cold plate jig is used for fixing a cold plate; the battery cell jig is used for placing a plurality of battery cells arranged along a second direction; the driving part is used for driving the cold plate jig and the battery cell jig to get close to or away from each other; the limiting assembly is installed on the cold plate jig or the battery cell jig so as to limit the minimum distance between the cold plate jig and the battery cell jig. According to the battery cell grouping device, the size accuracy after the battery cells and the cold plates are grouped can be ensured, and then the accumulative error after the battery cells are stacked is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery cell grouping device. Background Art

[0002] The battery module includes multiple battery cells and cold plates. During the production process of the battery module, multiple battery cells and cold plates need to be combined so that the multiple battery cells and cold plates are integrated into one by gluing or other means, and then installed in the shell of the battery module. Due to the poor controllability of the glue coating thickness, generally a thicker glue is applied first, and then the glue is squeezed. After each row of battery cells is grouped with a cold plate, multiple rows of battery cells are stacked. It is necessary to ensure that the size of the grouped battery cells and cold plates meets the requirements to meet the size requirements for subsequent welding or installation in the shell.

[0003] However, in the prior art, positioning pins are generally used to limit the position of the battery cell fixture or the cold plate fixture, and a tolerance of ±0.25mm must be left in the relative directions of the battery cell and the cold plate. Stacking the battery cells and the cold plate after they are grouped will cause cumulative errors, affecting the subsequent welding quality and the reliability of the size of the grouped products.

[0004] Therefore, it is urgent to design a battery cell grouping device to solve the above problems. Utility Model Content

[0005] One purpose of the utility model is to provide a battery cell grouping device, which can ensure the accuracy of the size of the battery cells and the cold plate after being grouped, thereby reducing the cumulative error after the battery cells are stacked.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A battery cell grouping device, comprising:

[0008] A cold plate fixture and a battery cell fixture are arranged opposite to each other in a first direction, the cold plate fixture is used to fix the cold plate, and the battery cell fixture is used to place a plurality of battery cells arranged along a second direction, and the first direction is perpendicular to the second direction;

[0009] A driving member, used for driving the cold plate jig and the battery cell jig to move closer to or away from each other;

[0010] The limiting component is installed on the cold plate jig or the battery cell jig to limit the minimum distance between the cold plate jig and the battery cell jig.

[0011] As an optional solution, the cold plate fixture or the battery cell fixture connected with the limiting assembly is defined as a first mounting assembly, and in the first direction, the distance between the free end of the limiting assembly and the first mounting assembly is adjustable.

[0012] As an optional solution, the area between the cold plate fixture and the battery cell fixture is a grouping space, and the limiting component includes:

[0013] A mounting seat, mounted on the first mounting assembly;

[0014] An adjustable member extending along the first direction and passing through the first mounting assembly, the adjustable member being threadedly connected to the mounting seat;

[0015] The locking member is threadedly connected to the adjustable member and can be tightly pressed against the mounting seat.

[0016] As an optional solution, the first mounting assembly is provided with a through hole extending along the first direction, the mounting seat is provided with a threaded hole extending along the first direction, and the diameter of the through hole is larger than the diameter of the threaded hole;

[0017] The adjustable part comprises a guide part and a threaded part which are connected to each other. The threaded part is threadedly connected to the threaded hole, and the guide part can slide along the through hole.

[0018] As an optional solution, the adjustable member further includes an abutment portion, the abutment portion is connected to an end of the guide portion away from the threaded portion, and the cross-sectional area of ​​the abutment portion is larger than the cross-sectional area of ​​the guide portion.

[0019] As an optional solution, one of the cold plate jig or the battery cell jig other than the first mounting component is a second mounting component, and a wear-resistant part is installed on the second mounting component. The wear-resistant part is arranged opposite to the limit assembly and can abut against the limit assembly.

[0020] As an optional solution, the driving member is a cylinder.

[0021] As an optional solution, the battery cell grouping device further includes a base plate, and the cold plate fixture, the battery cell fixture and the driving member are all connected to the base plate.

[0022] As an optional solution, the above-mentioned cold plate fixture includes:

[0023] A mounting plate extending along the second direction and mounted on the bottom plate;

[0024] A cold plate fitting piece, which is matched with the shape of the cold plate, and the cold plate fitting piece is installed on the installation plate;

[0025] The support member is detachably mounted on the base plate. Both ends of the mounting plate are provided with the support members. The two support members jointly support the cold plate.

[0026] As an optional solution, the mounting plate includes a plurality of sub-plates sequentially arranged along the second direction, each of the sub-plates is correspondingly provided with the cold plate fitting, and each of the sub-plates is detachably connected to the base plate.

[0027] As an optional solution, the above-mentioned battery cell fixture includes:

[0028] A mounting base extending along the second direction and connected to the bottom plate, wherein the cross section of the mounting base is L-shaped;

[0029] A plurality of supporting members are arranged in sequence along the second direction, each of the supporting members can be detachably mounted on the mounting base, and the bottom surface of the battery cell is placed on the supporting member;

[0030] A plurality of cell limiters are arranged in sequence along the second direction, each of the cell limiters can be detachably mounted on the mounting base and arranged in a V shape, and the cell limiters and the supporting members are arranged one-to-one or many-to-one.

[0031] As an optional solution, the above-mentioned mounting base is slidably matched with the above-mentioned bottom plate, and the above-mentioned battery cell fixture also includes an adsorption member, and the above-mentioned adsorption member is provided on each of the above-mentioned battery cell limiting members, and the above-mentioned adsorption member is configured to adsorb the battery cell in the above-mentioned battery cell limiting member.

[0032] As an optional solution, a buffer is installed on the cold plate fixture or the battery cell fixture.

[0033] The beneficial effects of the utility model are:

[0034] The utility model provides a battery cell grouping device. During use, multiple battery cells are placed in a battery cell jig, and then a cold plate is attached to the surface of the cold plate jig, and then a driving component drives the cold plate jig or the battery cell jig to move in the opposite direction to make the cold plate jig and the battery cell jig close to each other. Since the force applied by the driving component is relatively large, after the battery cells are attached to the glue, if the glue is too thick, the driving component can still reduce the distance between the cold plate jig and the battery cell jig to ensure that the thickness of the glue layer is not too thick, until the limit component abuts against the cold plate jig or the battery cell jig, the driving component can no longer drive, and its output terminal Keep this position unchanged until the glue solidifies; during the grouping process of the above-mentioned battery cell grouping device, the spacing between the battery cell and the cold plate will not be fixed due to the tolerance problem of the positioning pins. The use of the driving member ensures that one end of the limit assembly is connected to one of the cold plate fixture and the battery cell fixture during grouping, and the free end of the limit assembly abuts against the other of the two, ensuring that the spacing between the cold plate fixture and the battery cell fixture is fixed during grouping, thereby ensuring the precise size of the battery cell and the cold plate in the final grouping. At the same time, the driving member can be used as an external force application member during grouping, reducing the setting of the clamping tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of a battery cell grouping device provided in an embodiment of the utility model;

[0036] Figure 2 It is a partial cross-sectional view of the battery cell grouping device provided by an embodiment of the utility model at the position of the limiting component;

[0037] Figure 3 It is a structural schematic diagram of a cold plate fixture and a bottom plate provided in an embodiment of the utility model;

[0038] Figure 4 It is a structural schematic diagram of a battery fixture and a base plate provided in an embodiment of the utility model;

[0039] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0040] In the figure:

[0041] 10. Cold plate fixture; 11. Mounting plate; 111. Sub-plate; 1111. Through hole; 12. Cold plate fitting; 13. Supporting member;

[0042] 20. Cell fixture; 21. Mounting base; 211. Horizontal part; 212. Vertical part; 213. Quick release part; 22. Supporting part; 23. Cell limiter; 231. Body; 232. Protrusion; 2321. V-shaped groove; 24. Adsorption part; 25. Wear-resistant part;

[0043] 30. Driving parts;

[0044] 40. Limiting assembly; 41. Mounting seat; 42. Adjustable member; 421. Guide portion; 422. Threaded portion; 423. Abutment portion; 424. Screwing portion;

[0045] 50. Grouped space;

[0046] 60. bottom plate; 61. mounting hole;

[0047] 70. Buffer parts. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0049] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0051] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0052] This embodiment provides a battery cell grouping device for gluing a row of battery cells to a cold plate and integrating them into one. Figure 1 and Figure 2 As shown, the battery cell grouping device includes a cold plate jig 10 and a battery cell jig 20, which are arranged relatively to each other in a first direction (X direction in the figure), wherein the cold plate jig 10 is used to fix the cold plate; the battery cell jig 20 is used to place a plurality of battery cells arranged along a second direction (Y direction in the figure, the Y direction is perpendicular to the X direction); the driving member 30 is used to drive the cold plate jig 10 and the battery cell jig 20 to move closer to or away from each other; and the limiting assembly 40 is installed on the cold plate jig 10 or the battery cell jig 20 to limit the minimum distance between the cold plate jig 10 and the battery cell jig 20.

[0053] During use of the above-mentioned battery cell grouping device, multiple battery cells are placed in the battery cell jig 20, and then the cold plate is bonded to the surface of the cold plate jig 10 (one side of the cold plate has been coated with glue before bonding, and the side coated with glue is placed toward the battery cell jig 20), and then the driving member 30 drives the cold plate jig 10 or the battery cell jig 20 to move in the opposite direction to make the cold plate jig 10 and the battery cell jig 20 close to each other. Since the force applied by the driving member 30 is relatively large, after the battery cells are bonded to the glue, if the glue is too thick, the driving member 30 can still reduce the distance between the cold plate jig 10 and the battery cell jig 20 to ensure that the thickness of the glue layer is not too thick, until the limiting component 40 abuts against the cold plate jig 10 or the battery cell jig. When the battery cell grouping device is in the process of grouping, the spacing between the battery cell and the cold plate will not be fixed due to the tolerance problem of the positioning pins. The use of the driving member 30 ensures that one end of the limiting component 40 is connected to one of the cold plate fixture 10 and the battery cell fixture 20 during grouping, and the free end of the limiting component 40 abuts against the other of the two, ensuring that the spacing between the cold plate fixture 10 and the battery cell fixture 20 is fixed during grouping, thereby ensuring the precise size of the battery cell and the cold plate in the final grouping. At the same time, the driving member 30 can be used as an external force application member during grouping, reducing the setting of the clamping tool.

[0054] Optionally, the battery cell grouping device further includes a bottom plate 60, and the cold plate fixture 10, the battery cell fixture 20 and the driving member 30 are all connected to the bottom plate 60. This arrangement can improve the integrity of the entire battery cell grouping device. In other embodiments, the driving member 30, the cold plate fixture 10 and the battery cell fixture 20 can also be provided with their own mounting bottom plates, which are not limited here.

[0055] Optionally, the cold plate fixture 10 has a profile that matches the shape of the cold plate, so that the cold plate can fit on the profile before grouping, thereby increasing the stability of the cold plate fixture 10 in fixing the cold plate.

[0056] In this embodiment, the battery cell is a cylindrical battery cell, and the cold plate is arranged in a wave shape. In other embodiments, the battery cell can also be square, and the cold plate is arranged in a plane; or the battery cell is a special shape, and the shape of the cold plate can be adaptively changed according to the shape of the peripheral side of the battery cell, which is not limited here.

[0057] In the present embodiment, the battery cell jig 20 is arranged at the output end of the driving member 30 and is slidably matched with the base plate 60, and the cold plate jig 10 is fixedly connected to the base plate 60; in another embodiment, the cold plate jig 10 may be arranged at the output end of the driving member 30, and the battery cell jig 20 may be fixedly connected to the base plate 60, which is not limited here. In other embodiments, both the battery cell jig 20 and the cold plate jig 10 may be installed at the output end of the driving member 30, which is not limited here. In addition, the limit assembly 40 may be installed on the battery cell jig 20 or on the cold plate jig 10, which is not limited here. The following example is taken as an example in which the battery cell jig 20 is arranged at the output end of the driving member 30 and the limit assembly 40 is installed on the cold plate jig 10, and other schemes are not repeated here.

[0058] Alternatively, if Figure 2 and Figure 3 As shown, for the convenience of explanation, the area between the cold plate fixture 10 and the battery cell fixture 20 is defined as the grouping space 50. The cold plate fixture 10 includes a mounting plate 11, a cold plate fitting 12 and a support member 13. The mounting plate 11 extends along the second direction and is mounted on the bottom plate 60; the cold plate fitting 12 is arranged to match the shape of the cold plate, and the cold plate fitting 12 is mounted on the mounting plate 11; the support member 13 is detachably mounted on the bottom plate 60, and support members 13 are provided at both ends of the mounting plate 11, and the two support members 13 jointly support the cold plate. It can be understood that the profile of the cold plate fitting 12 facing the grouping space 50 is a finished surface, and the cold plate can be well fitted on the profile, and the support member 13 plays a role in supporting the cold plate. In the process of the driving member 30 driving the battery cell fixture 20 close to the cold plate fixture 10, it is necessary to hold the cold plate by hand, and the battery cell can be released after the cold plate is fitted. At the same time, the detachable arrangement of the support member 13 allows the support members 13 of different heights to be replaced to adapt to cold plates of different heights.

[0059] Alternatively, if Figure 3 As shown, the mounting plate 11 includes a plurality of sub-plates 111 arranged in sequence along the second direction, each sub-plate 111 is correspondingly provided with a cold plate fitting member 12, and each sub-plate 111 is detachably connected to the bottom plate 60. Through the above arrangement, when the size of the cold plate in the second direction changes, the sub-plates 111 at both ends of the second direction can be removed, and the support member 13 can be removed and replaced to the side of the sub-plate 111 closest to it.

[0060] Alternatively, if Figure 3 As shown, a mounting hole 61 is opened on the bottom plate 60 , and a locking member (not shown) passes through the mounting hole 61 and is threadedly connected to the support member 13 to achieve a detachable connection of the support member 13 . Figure 3 The figure exemplarily shows the mounting holes 61 for facilitating the replacement of the support member 13 after the outermost sub-board 111 is removed. In fact, the mounting holes 61 can be opened on the side of each sub-board 111.

[0061] Optionally, in the first direction, the distance between the free end of the limit assembly 40 and the cold plate fixture 10 is adjustable. Through the above arrangement, the position of the free end of the limit assembly 40 can be adjusted according to the size of different battery cells, thereby changing the minimum distance between the cold plate fixture 10 and the battery cell fixture 20, thereby improving the adaptability of the battery cell grouping device to battery cells of different sizes; in addition, after a period of use, if the free end of the limit assembly 40 is worn, the position of the limit assembly 40 at the free end can also be adjusted to ensure the stability of the grouping size after the battery cell grouping device is used for a long time. In other embodiments, if the limit assembly 40 is connected to the battery cell fixture 20, it is sufficient to ensure that the distance between the free end of the limit assembly 40 and the battery cell fixture 20 is adjustable, and the above effect can also be achieved, which is not limited here.

[0062] Alternatively, if Figure 2 As shown, the limit assembly 40 includes a mounting seat 41, an adjustable member 42 and a locking member (not shown), the mounting seat 41 is mounted on the cold plate fixture 10 (preferably one of the sub-plates 111 is on the side away from the grouping space 50); the adjustable member 42 extends along the first direction and penetrates the cold plate fixture 10 (more specifically, the sub-plate 111), and the adjustable member 42 is threadedly connected to the mounting seat 41; the locking member is threadedly connected to the adjustable member 42 and can be tightened against the mounting seat 41 or the cold plate fixture 10. The above arrangement, by screwing the adjustable member 42, realizes the position change of the adjustable member 42 relative to the mounting seat 41 (that is, relative to the entire cold plate fixture 10) in the first direction, thereby changing the minimum distance between the cold plate fixture 10 and the battery cell fixture 20. It should be noted that after the adjustable member 42 and the mounting seat 41 are threadedly connected and adjusted to a suitable position, if subjected to vibration, the position of the adjustable member 42 may also change slightly, and the locking member may be a locking nut, see Figure 2 The locking nut can be threadedly connected to the adjustable part 42 on the side of the mounting base 41 facing away from the ion plate 111, and in the locked state, it is pressed against the mounting base 41 to lock the position of the adjustable part 42; or, the locking nut can be threadedly connected to the adjustable part 42 on the side of the sub-plate 111 facing away from the mounting base 41, and in the locked state, it is pressed against the sub-plate 111 to lock the position of the adjustable part 42, which is not limited here.

[0063] Alternatively, if Figure 2As shown, the cold plate fixture 10 (one of the sub-plates 111) is provided with a through hole 1111 extending in the first direction, and the mounting seat 41 is provided with a threaded hole (not marked) extending in the first direction, and the diameter of the through hole 1111 is larger than the diameter of the threaded hole; the adjustable part 42 includes a connected guide portion 421 and a threaded portion 422, the threaded portion 422 is threadedly connected to the threaded hole, and the guide portion 421 can slide along the through hole 1111. Through the above arrangement, the through hole 1111 plays a guiding role for the adjustable part 42 when it moves in the first direction, and at the same time, the diameter of the threaded portion 422 is small, which prevents the threaded portion 422 from scratching the inner wall of the through hole 1111.

[0064] Alternatively, if Figure 2 As shown, the adjustable member 42 further includes an abutment portion 423, which is connected to one end of the guide portion 421 away from the threaded portion 422, and the cross-sectional area of ​​the abutment portion 423 is greater than the cross-sectional area of ​​the guide portion 421. Through the above arrangement, it can be ensured that when the abutment portion 423 abuts against the battery fixture 20, the contact area is large, thereby preventing damage to the battery fixture 20.

[0065] Alternatively, if Figure 2 and Figure 5 As shown, the adjustable part 42 also includes a screwing portion 424, which is connected to one end of the threaded portion 422 away from the guide portion 421 and protrudes on the end face of the threaded portion 422. The screwing portion 424 is non-circular in shape. Through the above-mentioned arrangement, the threaded portion 422 can be driven to rotate by screwing the screwing portion 424, making it easier to rotate the threaded portion 422.

[0066] Optionally, two limiting components 40 are provided in the second direction to ensure balance at both ends when the limiting components 40 abut against the battery cell fixture 20 .

[0067] Alternatively, if Figure 3 and Figure 5 As shown, a buffer 70 is installed on the cold plate fixture 10 or the battery fixture 20 to prevent a hard collision between the limiting assembly 40 and the battery fixture 20. Optionally, the buffer 70 is arranged in a one-to-one correspondence with the limiting assembly 40, and the buffer 70 is arranged beside the limiting assembly 40 to ensure a buffering effect. Among them, the buffer 70 is a buffer in the prior art, and its structure is not described here.

[0068] In order to further prevent the battery fixture 20 from being damaged, see Figure 5 The battery fixture 20 is provided with a wear-resistant part 25, which is arranged opposite to the position-limiting component 40 and can abut against the position-limiting component 40. In other words, two wear-resistant parts 25 are also provided, and are arranged one by one with the position-limiting components 40.

[0069] Alternatively, if Figure 4 and Figure 5 As shown, the battery fixture 20 includes a mounting base 21, a plurality of supporting members 22 and a plurality of battery cell limiting members 23. The mounting base 21 extends along the second direction and is connected to the bottom plate 60. The cross section of the mounting base 21 is L-shaped. The plurality of supporting members 22 are arranged in sequence along the second direction. Each supporting member 22 can be detachably mounted on the mounting base 21. The bottom surface of the battery cell is placed on the supporting member 22. The plurality of battery cell limiting members 23 are arranged in sequence along the second direction. Each battery cell limiting member 23 can be detachably mounted on the mounting base 21 and is arranged in a V-shape. The plurality of battery cell limiting members 23 and the plurality of supporting members 22 are arranged one-to-one or many-to-one. Through the above arrangement, the limiting of the side of cylindrical battery cells with different diameters can be well adapted. At the same time, the supporting member 22 can be finely processed separately to ensure that the bottom of the battery cell will not be scratched. In addition, when the number of battery cells in a group is reduced, several battery cell limiting members 23 and the corresponding supporting members 22 can be easily removed to prevent interference.

[0070] Optionally, the supporting member 22 and the sub-board 111 are arranged in a one-to-one correspondence to ensure that the supporting member 22 and the sub-board 111 can be removed and installed at the same time.

[0071] Optionally, the mounting base 21 includes a vertically arranged horizontal portion 211 and a vertical portion 212, the horizontal portion 211 is slidably matched with the bottom plate 60, the battery cell limiter 23 is installed on the vertical portion 212, the supporting member 22 is installed on the horizontal portion 211, and the wear-resistant member 25 is installed on the side of the horizontal portion 211 facing the grouping space 50.

[0072] Alternatively, see Figure 5 The mounting base 21 also includes a quick-release component 213, which can be detachably mounted between the vertical portion 212 and the battery cell limiting component 23. One of the vertical portion 212 and the quick-release component 213 is provided with a limiting protrusion (not marked), and the other is provided with a limiting groove (not marked), so that the quick-release component 213 can quickly find the installation position when being installed, thereby achieving quick installation.

[0073] Since the cell stopper 23 moves with the driving member 30 in this embodiment, the cell is prone to tipping over during the movement. Figure 5 As shown, the battery fixture 20 further includes an adsorption member 24, and each battery limiting member 23 is provided with an adsorption member 24, and the adsorption member 24 is configured to adsorb the battery in the battery limiting member 23. Through the above arrangement, the stability of the battery during movement can be ensured to prevent the battery from tipping over.

[0074] Optionally, the adsorption member 24 is a magnet, which has low cost and is easy to install.

[0075] Optionally, at least two adsorption members 24 are arranged on each battery cell limiting member 23 in the vertical direction, so as to ensure the stability of adsorption of the battery cell.

[0076] In other embodiments, the adsorption member 24 may also be configured as a suction cup, etc., which is not limited here.

[0077] Alternatively, if Figure 5 As shown, the battery cell limiter 23 includes a body 231 and two protrusions 232. The body 231 is mounted on the mounting base 21. The two protrusions 232 are respectively protruded from the body 231 toward the grouping space 50 and are spaced apart in the vertical direction (Z direction in the figure, the Z direction is respectively perpendicular to the X direction and the Y direction). A V-shaped groove 2321 is provided on each protrusion 232. Through the above arrangement, the upper and lower ends of the battery cell can be better limited. In addition, with the above arrangement, the body 231 has enough installation plane for installing the adsorption member 24.

[0078] In another embodiment, the battery cell limiting member 23 may also directly open a V-shaped groove 2321 that penetrates in the vertical direction, and the installation plane of the adsorption member 24 may be separately processed at the bottom of the V-shaped groove 2321, which is not limited here.

[0079] Optionally, the driving member 30 is a cylinder. The cylinder can set the air pressure in advance according to the situation, and the pressure value generated each time is the same, ensuring that the force on the battery cell and the cold plate is stable when grouping.

[0080] In other embodiments, the driving member 30 may also be any driving element capable of outputting linear motion, such as a combination of a motor and a lead screw nut, or a linear module, etc., which is not limited here.

[0081] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. Battery cell grouping device, It is characterized in that include: A cold plate jig (10) and a battery cell jig (20) arranged opposite to each other in a first direction, the cold plate jig (10) being used to fix the cold plate, and the battery cell jig (20) being used to place a plurality of battery cells arranged along a second direction, the first direction being perpendicular to the second direction; A driving member (30) for driving the cold plate jig (10) and the battery cell jig (20) to move closer to or farther from each other; A limiting component (40) is installed on the cold plate jig (10) or the battery cell jig (20) to limit the minimum distance between the cold plate jig (10) and the battery cell jig (20).

2. The battery cell grouping device according to claim 1, It is characterized in that The cold plate fixture (10) or the battery cell fixture (20) connected with the limiting component (40) is defined as a first installation component, and in the first direction, the distance between the free end of the limiting component (40) and the first installation component is adjustable.

3. The battery cell grouping device according to claim 2, It is characterized in that The area between the cold plate jig (10) and the battery cell jig (20) is a grouping space (50), and the limiting component (40) comprises: A mounting seat (41) mounted on the first mounting assembly; An adjustable member (42) extends along the first direction and penetrates the first mounting assembly, the adjustable member (42) being threadedly connected to the mounting seat (41); A locking member is threadedly connected to the adjustable member (42) and can be tightly pressed against the mounting seat (41).

4. The battery cell grouping device according to claim 3, It is characterized in that The first mounting assembly is provided with a through hole (1111) extending along the first direction, the mounting seat (41) is provided with a threaded hole extending along the first direction, and the diameter of the through hole (1111) is greater than the diameter of the threaded hole; The adjustable member (42) comprises a guide portion (421) and a threaded portion (422) which are connected to each other. The threaded portion (422) is threadedly connected to the threaded hole, and the guide portion (421) can slide along the through hole (1111).

5. The battery cell grouping device according to claim 4, It is characterized in that The adjustable member (42) further comprises an abutment portion (423), wherein the abutment portion (423) is connected to an end of the guide portion (421) away from the threaded portion (422), and a cross-sectional area of ​​the abutment portion (423) is greater than a cross-sectional area of ​​the guide portion (421).

6. The battery cell grouping device according to claim 2, It is characterized in that The one of the cold plate jig (10) or the battery cell jig (20) other than the first mounting component is a second mounting component, on which a wear-resistant part (25) is mounted, and the wear-resistant part (25) is arranged opposite to the limiter component (40) and can abut against the limiter component (40).

7. The battery cell grouping device according to any one of claims 1 to 6, It is characterized in that The driving member (30) is a cylinder.

8. The battery cell grouping device according to any one of claims 1 to 6, It is characterized in that The battery cell grouping device further comprises a bottom plate (60), and the cold plate fixture (10), the battery cell fixture (20) and the driving member (30) are all connected to the bottom plate (60).

9. The battery cell grouping device according to claim 8, It is characterized in that The cold plate fixture (10) comprises: A mounting plate (11) extending along the second direction and mounted on the bottom plate (60); A cold plate fitting (12) is arranged to match the shape of the cold plate, and the cold plate fitting (12) is mounted on the mounting plate (11); The support member (13) is detachably mounted on the bottom plate (60), and the support members (13) are disposed at both ends of the mounting plate (11), and the two support members (13) jointly support the cold plate.

10. The battery cell grouping device according to claim 9, It is characterized in that The mounting plate (11) comprises a plurality of sub-plates (111) arranged in sequence along the second direction, each of the sub-plates (111) being provided with a corresponding cold plate fitting (12), and each of the sub-plates (111) being detachably connected to the base plate (60).

11. The battery cell grouping device according to claim 8, It is characterized in that The battery cell fixture (20) comprises: A mounting base (21) extending along the second direction and connected to the bottom plate (60), wherein a cross section of the mounting base (21) is L-shaped; A plurality of supporting members (22) are arranged in sequence along the second direction, each of the supporting members (22) can be detachably mounted on the mounting base (21), and the bottom surface of the battery cell is placed on the supporting member (22); A plurality of battery cell limiting members (23) are arranged in sequence along the second direction, each of the battery cell limiting members (23) can be detachably mounted on the mounting base (21) and is arranged in a V-shape, and the plurality of battery cell limiting members (23) and the plurality of supporting members (22) are arranged one-to-one or many-to-one.

12. The battery cell grouping device according to claim 11, It is characterized in that The mounting base (21) is slidably matched with the bottom plate (60), and the battery cell fixture (20) further comprises an adsorption member (24), each of the battery cell limiting members (23) is provided with the adsorption member (24), and the adsorption member (24) is configured to adsorb the battery cell in the battery cell limiting member (23).

13. The battery cell grouping device according to any one of claims 1 to 6, It is characterized in that A buffer component (70) is installed on the cold plate jig (10) or the battery cell jig (20).

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