Cylindrical battery module assembly tool

Abstract

The application relates to the technical field of battery assembly, and discloses a cylindrical battery module assembly tool. The cylindrical battery module assembly tool comprises a base, a first chuck assembly, a second chuck assembly and a driving assembly. The first chuck assembly is arranged on the base and can position a first row of cylindrical batteries arranged in a first direction. The second chuck assembly is movably arranged on the base and can position a second row of cylindrical batteries arranged in the first direction on the side of the second chuck assembly facing the first chuck assembly. The driving assembly is arranged on the base and is used for driving the second chuck assembly to move towards the first chuck assembly in a second direction, so that the two rows of cylindrical batteries clamp a liquid cooling plate between the two rows of cylindrical batteries with a preset pressure. The cylindrical battery module assembly tool can ensure that the liquid cooling plate and the side wall of the cylindrical battery have sufficient contact area, thereby ensuring the safety of the cylindrical battery module.

Description

Technical Field

[0001] This invention relates to the field of battery assembly technology, and in particular to a tooling for assembling cylindrical battery modules. Background Technology

[0002] Cylindrical lithium-ion battery modules possess advantages such as high capacity, high output voltage, good discharge cycle performance, and safe use, and are increasingly being applied in electric vehicles, backup energy, and other fields. For example... Figure 1 As shown, a cylindrical battery module typically includes multiple rows of cylindrical batteries 100 arranged side-by-side. Each row of cylindrical batteries 100 comprises multiple cylindrical batteries 100. To improve the energy density of the cylindrical battery module, adjacent rows of cylindrical batteries 100 are staggered. To ensure that the heat generated by the cylindrical batteries 100 during charging and discharging can be dissipated in a timely manner, a liquid cooling plate is usually sandwiched between adjacent rows of cylindrical batteries 100. In the prior art, when assembling a cylindrical battery module, the positions of adjacent rows of cylindrical batteries 100 are usually fixed first, and then the liquid cooling plate is inserted between the adjacent rows of cylindrical batteries 100. However, this assembly method makes it difficult to ensure that the liquid cooling plate fully contacts the peripheral surface of each cylindrical battery 100, which leads to the cooling rate of the cylindrical batteries 100 failing to meet the usage requirements, and even thermal runaway problems.

[0003] Therefore, there is an urgent need for a cylindrical battery module assembly tooling to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to provide a cylindrical battery module assembly fixture that ensures sufficient contact area between the liquid cooling plate and the side wall of the cylindrical battery, thereby ensuring the safety of the cylindrical battery module.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A cylindrical battery module assembly fixture, comprising:

[0007] Base;

[0008] A first clamp assembly is disposed on the base, and the first clamp assembly is capable of positioning a first row of cylindrical batteries arranged along a first direction;

[0009] The second clamp assembly is movably mounted on the base, and the side of the second clamp assembly facing the first clamp assembly can position the second row of cylindrical batteries arranged along the first direction.

[0010] A drive assembly is disposed on the base. The drive assembly is used to drive the second clamp assembly to approach the first clamp assembly in a second direction, so that the two rows of cylindrical batteries clamp the liquid cooling plate located between the two rows of cylindrical batteries with a preset pressure.

[0011] As an optional solution, the first clamp assembly includes a first positioning part, on which a plurality of first grooves are provided, arranged along the first direction, and the first row of cylindrical batteries are correspondingly located in the plurality of first grooves.

[0012] The second clamp assembly includes a second positioning part, and the second positioning part has a plurality of second grooves arranged along the first direction on the side facing the first positioning part, and the second row of cylindrical batteries are correspondingly located in the plurality of second grooves;

[0013] As an alternative, along the first direction, a plurality of first grooves and a plurality of second grooves are staggered.

[0014] As an alternative, the first groove is a V-shaped groove with its opening facing the second positioning part, and the first groove engages with the circumferential surface of the cylindrical battery; and / or

[0015] The second groove is a V-shaped groove with its opening facing the first positioning part, and the second groove engages with the circumferential surface of the cylindrical battery.

[0016] As an optional solution, the first clamp assembly includes a first support portion, on which a first horizontal support surface is provided, and the lower end faces of the first row of cylindrical batteries are all supported on the first horizontal support surface; and / or

[0017] The second clamp assembly includes a second support portion, on which a second horizontal support surface is provided, and the lower end surfaces of the second row of cylindrical batteries are all supported on the second horizontal support surface.

[0018] As an alternative, the first horizontal support surface and the second horizontal support surface are coplanar.

[0019] As an alternative, the first chuck assembly includes two positioning bosses, which are disposed at both ends of the first chuck assembly along the first direction, and are configured to support both ends of the liquid cooling plate.

[0020] As an optional solution, the cylindrical battery module assembly fixture further includes a limiting component connected to the base. The limiting component is spaced apart from one end of the second clamping component along the first direction. The second clamping component is provided with a slot. When the limiting component is opposite to the slot, at least a portion of the limiting component can be inserted into the slot along the first direction to limit the second clamping component.

[0021] As an optional solution, the limiting component includes:

[0022] A fixing part is connected to the base and is spaced apart at one end of the second clamp assembly along the first direction. The fixing part is provided with a sliding groove extending along the first direction.

[0023] The insert can slide along the groove, and the insert can slide to protrude from the fixing part in a first direction and be inserted into the slot.

[0024] As an optional solution, the limiting component further includes a limiting shaft, the two ends of which are respectively connected to the two side walls of the slide groove. The insert is provided with an elongated hole extending in a first direction. The insert is disposed in the slide groove, and the limiting shaft passes through the elongated hole.

[0025] As an optional solution, the driving component includes:

[0026] A support is provided on the base, and the support is provided with a threaded hole;

[0027] A threaded shaft is provided along the second direction. One end of the threaded shaft is rotatably connected to the second chuck assembly, and the other end passes through the threaded hole and is threadedly engaged with the threaded hole.

[0028] The rotation of the threaded shaft can drive the second chuck assembly to move in the second direction.

[0029] As an alternative, the drive assembly further includes a bearing, the outer ring of which is fixed to the second chuck assembly, and the threaded shaft is fixedly connected to the inner ring of the bearing.

[0030] As an optional solution, the cylindrical battery module assembly fixture further includes:

[0031] A guide rail is disposed on the base along the second direction;

[0032] The slider is connected to the second chuck assembly and slides with the guide rail.

[0033] The beneficial effects of this invention are:

[0034] The cylindrical battery module assembly fixture of the present invention, in use, first positions the first row of cylindrical batteries on the first clamping assembly, then positions the second row of cylindrical batteries on the second clamping assembly, and places a liquid cooling plate coated with adhesive on both sides on the side of the first row of cylindrical batteries facing the second row of cylindrical batteries. At this time, the driving assembly drives the second clamping assembly to move closer to the first clamping assembly, and the two rows of cylindrical batteries clamp the liquid cooling plate, thereby limiting the relative position of the two rows of cylindrical batteries and the liquid cooling plate. Under the clamping pressure of the preset pressure, the liquid cooling plate can fully fit with the circumferential surface of the cylindrical battery, ensuring that the cylindrical battery has sufficient heat exchange area, avoiding thermal runaway problems in the cylindrical battery module during charging and discharging, and improving the safety of the cylindrical battery module. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of a cylindrical battery module in the existing technology;

[0036] Figure 2 This is a schematic diagram of the cylindrical battery module assembly fixture provided in a specific embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram of the structure of the cylindrical battery module assembly tooling provided in a specific embodiment of the present invention when assembling a cylindrical battery module;

[0038] Figure 4 This is an exploded structural diagram of the cylindrical battery module assembly fixture provided in a specific embodiment of the present invention;

[0039] Figure 5 This is an exploded structural diagram of the limiting component provided in a specific embodiment of the present invention.

[0040] In the picture:

[0041] 100 - Cylindrical battery; 200 - Liquid cooling plate;

[0042] 1-Base;

[0043] 2-First chuck assembly; 21-First positioning part; 211-First groove; 22-First support part; 221-First horizontal support surface; 23-First limiting plate; 231-First L-shaped groove; 24-First body part; 25-Positioning boss;

[0044] 3-Second chuck assembly; 31-Second positioning part; 311-Second groove; 32-Second support part; 321-Second horizontal support surface; 33-Second limiting plate; 331-Second L-shaped groove; 332-Slot; 34-Second body part;

[0045] 4-Drive assembly; 41-Support; 411-Threaded hole; 42-Threaded shaft; 43-Bearing;

[0046] 5-Limiting component; 51-Fixing part; 511-Slide groove; 52-Insertion piece; 521-Elongated hole; 53-Limiting shaft;

[0047] 61-Guide rail; 62-Slider;

[0048] 7-Support block. Detailed Implementation

[0049] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention and not the entire structure.

[0050] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0053] This embodiment provides a tooling for assembling a cylindrical battery module. For example... Figure 1As shown, the cylindrical battery module includes at least two rows of cylindrical batteries 100, each row of cylindrical batteries 100 includes multiple cylindrical batteries 100, and a liquid cooling plate 200 is sandwiched between the two rows of cylindrical batteries 100. The liquid cooling plate 200 is in contact with a portion of the peripheral surface of each cylindrical battery 100. During the charging and discharging process of the cylindrical battery module, a circulating cooling medium is introduced into the liquid cooling plate 200 to cool the cylindrical batteries 100.

[0054] Preferably, such as Figure 2 and Figure 3 As shown in the figure, the X direction represents the first direction, and the Y direction represents the second direction. Both the X and Y directions are horizontal and perpendicular to each other. The cylindrical battery module assembly fixture includes a base 1, a first clamp assembly 2, a second clamp assembly 3, and a drive assembly 4. The first clamp assembly 2 and the second clamp assembly 3 are arranged on the base 1 along the second direction. The first clamp assembly 2 is fixed on the base 1 and can position the first row of cylindrical batteries 100 arranged along the first direction. The second clamp assembly 3 is movably disposed on the base 1. The side of the second clamp assembly 3 facing the first clamp assembly 2 can position the second row of cylindrical batteries 100 arranged along the first direction. A liquid cooling plate 200 can be disposed on the side of the first row of cylindrical batteries 100 facing the second row of cylindrical batteries 100. The drive assembly 4 is disposed on the base 1 and is used to drive the second clamp assembly 3 to approach the first clamp assembly 2 along the second direction, so that the two rows of cylindrical batteries 100 clamp the liquid cooling plate 200 with a preset pressure.

[0055] When using the cylindrical battery module assembly fixture of this embodiment, the first row of cylindrical batteries 100 is first positioned on the first clamping assembly 2, and then the second row of cylindrical batteries 100 is positioned on the second clamping assembly 3. The liquid cooling plate 200 with adhesive on both sides is placed on the side of the first row of cylindrical batteries 100 facing the second row of cylindrical batteries 100. At this time, the driving assembly 4 drives the second clamping assembly 3 to move closer to the first clamping assembly 2, and the two rows of cylindrical batteries 100 clamp the liquid cooling plate 200, thereby limiting the relative position of the two rows of cylindrical batteries 100 and the liquid cooling plate 200. Under the clamping pressure of the preset pressure, the liquid cooling plate 200 can be fully attached to the circumferential surface of the cylindrical battery 100, ensuring that the cylindrical battery 100 has sufficient heat exchange area, avoiding thermal runaway problems in the cylindrical battery module during charging and discharging, and improving the safety of the cylindrical battery module.

[0056] Preferably, such as Figure 2As shown, the first clamp assembly 2 includes a first positioning part 21, on which a plurality of first grooves 211 arranged along a first direction are provided. The first row of cylindrical batteries 100 are correspondingly positioned within the plurality of first grooves 211. The arrangement of the plurality of first grooves 211 enables the positioning of the relative positions of the plurality of cylindrical batteries 100 within the first row, thereby ensuring the accuracy of the axial distance between the plurality of cylindrical batteries 100 in the first row, making the subsequent welding process between the cylindrical batteries 100 in the first row smoother. Similarly, as... Figure 2 As shown, the second clamp assembly 3 includes a second positioning part 31. The second positioning part 31 has multiple second grooves 311 arranged along a first direction on the side facing the first positioning part 21. The second row of cylindrical batteries 100 are correspondingly positioned within these grooves. The multiple second grooves 311 position the relative positions of the cylindrical batteries 100 within the second row, ensuring the accuracy of the center distance between the cylindrical batteries 100 in the second row, thus making the subsequent welding process between the cylindrical batteries 100 smoother. Furthermore, when the first clamp assembly 2 and the second clamp assembly 3 clamp the two rows of cylindrical batteries 100, the accuracy of the center distance between the two rows of cylindrical batteries 100 is guaranteed, making subsequent welding between the two rows of cylindrical batteries 100 more convenient.

[0057] Furthermore, such as Figure 2 and Figure 3 As shown, along the first direction, multiple first grooves 211 and multiple second grooves 311 are staggered. By staggering the multiple first grooves 211 and multiple second grooves 311 along the first direction, the multiple cylindrical batteries 100 in the first row and the multiple cylindrical batteries 100 in the second row ultimately form a staggered positional relationship. Under the clamping of a preset pressure, the liquid cooling plate 200 has a larger contact area with each cylindrical battery 100, further improving the cooling effect on the cylindrical battery 100.

[0058] Furthermore, such as Figure 2 and Figure 3 As shown, the first groove 211 is a V-shaped groove with its opening facing the second positioning part 31. The first groove 211 engages with the circumferential surface of the cylindrical battery 100. The second groove 311 is also a V-shaped groove with its opening facing the first positioning part 21. The second groove 311 engages with the circumferential surface of the cylindrical battery 100. By setting the first groove 211 and the second groove 311 as V-shaped grooves, the first positioning part 21 (and the second positioning part 31) can limit cylindrical batteries 100 of different diameters, thus broadening the applicability of the cylindrical battery module assembly fixture.

[0059] Preferably, such as Figure 2As shown, the cylindrical battery module assembly fixture also includes a guide rail 61 and a slider 62. The guide rail 61 is disposed on the base 1 along the second direction, and the slider 62 is connected to the second clamping assembly 3 and slides in cooperation with the guide rail 61. Through the cooperation of the guide rail 61 and the slider 62, the movement of the second clamping assembly 3 along the second direction is smoother and more precise, ensuring the relative positional accuracy of the first clamping assembly 2 and the second clamping assembly 3 during the clamping of the cylindrical battery 100, thereby ensuring the relative positional accuracy between the two rows of cylindrical batteries 100. Preferably, in this embodiment, the cylindrical battery module assembly fixture includes two guide rails 61, which are spaced apart along the first direction. Each guide rail 61 is slidably connected to a slider 62, and the two sliders 62 are connected to the two ends of the second clamping assembly 3 along the first direction. The two sets of guide rails 61 and sliders 62 make the movement of the second clamping assembly 3 towards the first clamping assembly 2 more stable. Of course, in other embodiments, the cylindrical battery module assembly fixture may also be provided with one, three or more sets of guide rails 61 and sliders 62, which are not specifically limited here.

[0060] Preferably, such as Figure 2 and Figure 4 As shown, the first clamp assembly 2 includes a first support portion 22, on which a first horizontal support surface 221 is provided. The lower end faces of the first row of cylindrical batteries 100 are all supported on the first horizontal support surface 221, ensuring that each cylindrical battery 100 in the first row has the same support reference, thereby ensuring that the assembled first row of cylindrical batteries 100 has a uniform height, facilitating subsequent welding between the cylindrical batteries 100. Similarly, the second clamp assembly 3 includes a second support portion 32, on which a second horizontal support surface 321 is provided. The lower end faces of the second row of cylindrical batteries 100 are all supported on the second horizontal support surface 321, ensuring that each cylindrical battery 100 in the second row has the same support reference, thereby ensuring that the assembled second row of cylindrical batteries 100 has a uniform height, facilitating subsequent welding between the cylindrical batteries 100. Furthermore, the first horizontal support surface 221 and the second horizontal support surface 321 are coplanar. This ensures that the heights of the two rows of cylindrical batteries 100 are uniform, facilitating welding between the two rows of cylindrical batteries 100.

[0061] Specifically, in this embodiment, as Figure 4As shown, the first clamp assembly 2 includes a first body portion 24, which is used to connect with the base 1. A first positioning portion 21 and a first support portion 22 are both disposed on the first body portion 24, with the first support portion 22 located on the side of the first positioning portion 21 facing the second clamp assembly 3. Further, the first positioning portion 21 can be a single strip-shaped component extending integrally along the first direction, or it can be composed of multiple segments extending along the first direction joined together. The first support portion 22 can be a single strip-shaped component extending integrally along the first direction, or it can be composed of multiple segments extending along the first direction joined together; those skilled in the art can choose the appropriate configuration according to their needs, and no specific limitation is made here. Further, as... Figure 4 As shown, the first clamp assembly 2 also includes a first limiting plate 23, which is disposed on the first body portion 24. The first limiting plate 23 has a first L-shaped groove 231, and the first positioning portion 21 is fixed in the first L-shaped groove 231. On the one hand, the first limiting plate 23 can raise the height of the first positioning portion 21, thereby ensuring that the first groove 211 on the first positioning portion 21 is engaged at an appropriate height in the cylindrical battery 100; on the other hand, the first L-shaped groove 231 can also position the bottom and side surfaces of the first positioning portion 21, ensuring the positional accuracy of the first positioning portion 21.

[0062] Similarly, as Figure 2 and Figure 4 As shown, the second chuck assembly 3 includes a second body portion 34, which is connected to the slider 62, thereby enabling the second chuck assembly 3 to move relative to the base 1 along a second direction. A second positioning portion 31 and a second support portion 32 are both disposed on the second body portion 34, with the second support portion 32 located on the side of the second positioning portion 31 facing the first chuck assembly 2. Further, the second positioning portion 31 can be a single strip-shaped component extending along the first direction, or it can be composed of multiple segments extending along the first direction. The second support portion 32 can be a single strip-shaped structure extending along the first direction, or it can be composed of multiple segments extending along the first direction; no limitation is made here. Further, the second chuck assembly 3 also includes a second limiting plate 33, which is disposed on the second body portion 34. The second limiting plate 33 has a second L-shaped groove 331, and the second positioning portion 31 is fixed within the second L-shaped groove 331. On the one hand, the second limiting plate 33 can raise the height of the second positioning part 31, thereby ensuring that the second groove 311 on the second positioning part 31 is engaged at an appropriate height in the cylindrical battery 100; on the other hand, the second L-shaped groove 331 can also play a positioning role on the bottom and side surfaces of the second positioning part 31, ensuring the positional accuracy of the second positioning part 31.

[0063] In this embodiment, as Figure 4As shown, the cylindrical battery module assembly fixture also includes a support block 7, which is mounted on the base 1, and the first body part 24 is mounted on the support block 7. Since the second body part 34 is mounted on the slider 62, the second body part 34 is at a certain height from the base 1. By setting the support block 7, the second body part 34 can be raised, thereby ensuring that the first horizontal support surface 221 on the first support part 22 is coplanar with the second horizontal support surface 321 on the second support part 32.

[0064] Preferably, such as Figure 3 and Figure 4 As shown, the first clamp assembly 2 also includes two positioning bosses 25, which are disposed at both ends of the first clamp assembly 2 along a first direction. The two positioning bosses 25 are used to support both ends of the liquid cooling plate 200. By supporting both ends of the liquid cooling plate 200 with the positioning bosses 25, the height of the liquid cooling plate 200 can be positioned to ensure that the liquid cooling plate 200 can be clamped at an appropriate height on the cylindrical battery 100. In this embodiment, the positioning bosses 25 are disposed on the first body part 24, and the two positioning bosses 25 are at the same height and higher than the first horizontal support surface 221, so that the liquid cooling plate 200 is located at the middle of the cylindrical battery 100 along the height direction. The specific height of the positioning bosses 25 can be selected and set according to actual needs, and is not specifically limited here. When assembling the cylindrical battery module, the liquid cooling plate 200 is first placed on the two positioning bosses 25, and one side of the liquid cooling plate 200 is placed against a row of cylindrical batteries 100 located on the first clamp assembly 2. Then, as the second clamp assembly 3 and another row of cylindrical batteries 100 on it approach the first clamp assembly 2, the liquid cooling plate 200 remains in a fixed position. After the other row of cylindrical batteries 100 on the second clamp assembly 3 comes into contact with the liquid cooling plate 200, the liquid cooling plate 200 is pushed to fully contact the two rows of cylindrical batteries 100.

[0065] Preferably, such as Figure 3 and Figure 4 As shown, the cylindrical battery module assembly fixture also includes a limiting component 5 connected to the base 1. The limiting component 5 is spaced apart from one end of the second clamping component 3 along the first direction. The second clamping component 3 is provided with a slot 332. When the limiting component 5 is opposite to the slot 332, at least part of the limiting component 5 can be inserted into the slot 332 along the first direction. After the limiting component 5 is inserted into the slot 332, the second clamping component 3 can no longer move along the second direction, thereby limiting the position of the second clamping component 3 relative to the first clamping component 2, thus ensuring that the two rows of cylindrical batteries 100 can press the liquid cooling plate 200 with a preset pressure. Specifically, in this embodiment, the slot 332 is provided on the side of the second body part 34. Of course, in other embodiments, the slot 332 may also be provided on the side of the second body part 34 or the second support part 32, which is not limited here.

[0066] In this embodiment, as Figure 4 and Figure 5 As shown, the limiting component 5 includes a fixing part 51 and an insert 52. The fixing part 51 is connected to the base 1 and is spaced apart at one end of the second clamping component 3 along the first direction. The fixing part 51 is provided with a sliding groove 511 extending along the first direction. The insert 52 can slide along the sliding groove 511 and slide until it protrudes from the fixing part 51 along the first direction and is inserted into the slot 332. During the process of driving the second clamping component 3 to move closer to the first clamping component 2 along the second direction, the insert 52 can be manually pressed until it abuts against the side wall of the second clamping component 3. When the second clamping component 3 moves along the second direction until the slot 332 is just opposite to the insert 52, the insert 52 is pressed into the slot 332, thereby limiting the second clamping component 3. It is understandable that the position of the fixing part 51 on the base 1 determines the final position of the movement of the second clamping assembly 3, thereby determining the magnitude of the clamping force of the cylindrical battery 100 on the liquid cooling plate 200. Therefore, those skilled in the art can adjust the position of the fixing part 51 on the base 1 according to actual needs to adjust the magnitude of the clamping force between the cylindrical battery 100 and the liquid cooling plate 200.

[0067] Specifically, such as Figure 5 As shown, the limiting component 5 also includes a limiting shaft 53. The two ends of the limiting shaft 53 are respectively connected to the two side walls of the slide groove 511. The insert 52 is provided with an elongated hole 521 extending in the first direction. The insert 52 is disposed in the slide groove 511, and the limiting shaft 53 passes through the elongated hole 521. By setting the limiting shaft 53, it is ensured that the insert 52 can slide in the slide groove 511 in the first direction, and the insert 52 is also prevented from completely coming out of the slide groove 511.

[0068] In this embodiment, as Figure 3 and Figure 4 As shown, the drive assembly 4 includes a support 41 and a threaded shaft 42. The support 41 is mounted on the base 1 and has a threaded hole 411. The threaded shaft 42 is positioned along a second direction. One end of the threaded shaft 42 is rotatably connected to the second chuck assembly 3, and the other end passes through the threaded hole 411 and is threaded into it. When the threaded shaft 42 is rotated, it can drive the second chuck assembly 3 to move along the second direction. The structure is simple and easy to operate. In one embodiment, the drive assembly 4 also includes a motor. The output end of the motor is connected to the threaded shaft 42 and can drive the threaded shaft 42 to rotate, thereby driving the second chuck assembly 3 to move along the second direction. In another embodiment, the drive assembly 4 also includes a handwheel, which is fixedly connected to the threaded shaft 42. The second chuck assembly 3 can also be driven to move along the second direction by manually rotating the handwheel. Those skilled in the art can choose the appropriate configuration according to actual needs, and no limitation is made here.

[0069] Furthermore, such as Figure 4As shown, the cylindrical battery module assembly fixture also includes a bearing 43. The outer ring of the bearing 43 is fixed to the second chuck assembly 3, and the threaded shaft 42 is fixedly connected to the inner ring of the bearing 43, thereby realizing a rotatable connection between the threaded shaft 42 and the second chuck assembly 3. In this embodiment, the bearing 43 is fixed to the second limiting plate 33.

[0070] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, based on the concept of the present invention, there will be changes in specific implementation methods and application scope. The content of this specification should not be construed as a limitation of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A cylindrical battery module assembly fixture, characterized in that, include: Base (1); The first clamp assembly (2) is fixedly mounted on the base (1). The first clamp assembly (2) is capable of positioning the first row of cylindrical batteries (100) arranged along the first direction. The second clamp assembly (3) is movably mounted on the base (1). The second clamp assembly (3) can position the second row of cylindrical batteries (100) arranged along the first direction on the side facing the first clamp assembly (2). A drive assembly (4) is disposed on the base (1). The drive assembly (4) is used to drive the second clamp assembly (3) to approach the first clamp assembly (2) in the second direction so that the two rows of cylindrical batteries (100) clamp the liquid cooling plate (200) located between the two rows of cylindrical batteries (100) with a preset pressure. The first clamp assembly (2) includes a first positioning part (21), and the first positioning part (21) is provided with a plurality of first grooves (211) arranged along the first direction, and the first row of cylindrical batteries (100) are correspondingly located in the plurality of first grooves (211); The second clamp assembly (3) includes a second positioning part (31). The second positioning part (31) has a plurality of second grooves (311) arranged along the first direction on the side facing the first positioning part (21). The second row of cylindrical batteries (100) are correspondingly located in the plurality of second grooves (311). Along the first direction, a plurality of first grooves (211) and a plurality of second grooves (311) are alternately arranged; The cylindrical battery module assembly fixture also includes a limiting component (5) connected to the base (1). The limiting component (5) is spaced apart from one end of the second clamp component (3) along the first direction. The second clamp component (3) is provided with a slot (331). When the limiting component (5) is opposite to the slot (331), at least part of the limiting component (5) can be inserted into the slot (331) along the first direction to limit the second clamp component (3). Both the first direction and the second direction are horizontal and perpendicular to each other.

2. The cylindrical battery module assembly fixture as described in claim 1, characterized in that, The first groove (211) is a V-shaped groove with its opening facing the second positioning part (31), and the first groove (211) engages with the circumferential surface of the cylindrical battery (100); and / or The second groove (311) is a V-shaped groove with an opening facing the first positioning part (21), and the second groove (311) engages with the circumferential surface of the cylindrical battery (100).

3. The cylindrical battery module assembly fixture as described in claim 1, characterized in that, The first clamp assembly (2) includes a first support portion (22), on which a first horizontal support surface (221) is provided, and the lower end faces of the first row of cylindrical batteries (100) are all supported on the first horizontal support surface (221); and / or The second clamp assembly (3) includes a second support part (32), on which a second horizontal support surface (321) is provided, and the lower end surfaces of the second row of cylindrical batteries (100) are all supported on the second horizontal support surface (321); The first horizontal support surface (221) and the second horizontal support surface (321) are coplanar.

4. The cylindrical battery module assembly fixture as described in any one of claims 1-3, characterized in that, The first chuck assembly (2) includes two positioning bosses (25), which are disposed at both ends of the first chuck assembly (2) along the first direction, and are configured to support both ends of the liquid cooling plate (200).

5. The cylindrical battery module assembly fixture as described in claim 1, characterized in that, The limiting component (5) includes: The fixing part (51) is connected to the base (1) and is spaced apart at one end of the second clamp assembly (3) along the first direction. The fixing part (51) is provided with a sliding groove (511) extending along the first direction. The insert (52) can slide along the groove (511) and can slide to protrude from the fixing part (51) in the first direction and be inserted into the slot (331). The limiting component (5) further includes a limiting shaft (53), the two ends of which are respectively connected to the two side walls of the slide groove (511). The insert (52) is provided with an elongated hole (521) extending in the first direction. The insert (52) is disposed in the slide groove (511), and the limiting shaft (53) passes through the elongated hole (521).

6. The cylindrical battery module assembly fixture as described in any one of claims 1-3, characterized in that, The driving component (4) includes: A support (41) is provided on the base (1), and a threaded hole (411) is provided on the support (41). A threaded shaft (42) is provided along the second direction. One end of the threaded shaft (42) is rotatably connected to the second chuck assembly (3), and the other end passes through the threaded hole (411) and is threadedly engaged with the threaded hole (411). The rotation of the threaded shaft (42) can drive the second chuck assembly (3) to move in the second direction.

7. The cylindrical battery module assembly fixture as described in any one of claims 1-3, characterized in that, The cylindrical battery module assembly fixture also includes: A guide rail (61) is disposed on the base (1) along the second direction; The slider (62) is connected to the second chuck assembly (3) and slides in cooperation with the guide rail (61).

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