Assembling device of battery module

Abstract

The invention relates to the technical field of batteries, and provides a battery module assembling device which comprises a base, a first positioning structure and a second positioning structure, the base is provided with an assembling area, at least part of the first positioning structure is movably arranged and is constructed to be capable of limiting the size of the assembling area in the first direction, and the second positioning structure is constructed to be capable of limiting the size of the assembling area in the second direction. The second positioning structure is configured to be capable of limiting the size of the assembly area at least on one side in the second direction. According to the assembling device provided by the embodiment of the invention, the size of the assembling area can be adjusted within a certain range, so that the assembling device of the battery module can adjust the size of the assembling area according to different battery modules, the compatibility of the assembling device is improved, and the application range of the assembling device is expanded.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to an assembly device for a battery module. Background Art

[0002] The stability of the power battery module assembly process and the control accuracy of the dimensional tolerances of the power battery module during the assembly process are important indicators that affect the performance of the power battery module. In order to realize the assembly of the power battery module, a special assembly device for the power battery module is designed in the related art. The special assembly device is generally only applicable to the assembly of power battery modules of fixed size. When the size of the power battery module changes, the special assembly device cannot be used, resulting in low compatibility and small scope of application of the special assembly device. Summary of the invention

[0003] The present application provides an assembly device for a battery module, which has high compatibility and a wide range of applications.

[0004] One aspect of the present application provides a battery module assembly device, comprising:

[0005] a base having an assembly area;

[0006] A first positioning structure, at least partially movably arranged, and the first positioning structure is configured to limit the size of the assembly area in a first direction;

[0007] and a second positioning structure configured to limit the size of the assembly area at least on one side in the second direction.

[0008] The assembly device of the battery module in the embodiment of the present application includes a base, a first positioning structure and a second positioning structure, wherein the base has an assembly area, and the battery cell units in the battery module can be stacked in the assembly area, the first positioning structure limits the size of the assembly area in a first direction, and the second positioning structure can at least limit the size of the assembly area on one side in the second direction. The combination of the first positioning structure and the second positioning structure can at least limit the size of the assembly area within a certain range, and based on the characteristics of the movable setting of the first positioning structure, the size of the assembly area can also be adjusted within a certain range, so that the assembly device of the battery module can adjust the size of its assembly area according to different battery modules, thereby improving the compatibility of the assembly device and expanding its scope of application.

[0009] In a possible implementation manner, the second positioning structure is disposed on one side in the second direction and is fixedly arranged, and an assembly area surrounded by the first positioning structure and the second positioning structure has a free end.

[0010] In a possible implementation manner, the first direction and the second direction are perpendicular to each other, and the first direction and the second direction are in the same plane.

[0011] In one possible implementation, the first positioning structure includes at least one group of abutment plates that are parallel to each other and can move closer to or farther from each other along a first direction, and the second positioning structure includes a fixed positioning plate that is perpendicular to the abutment plates.

[0012] In a possible implementation, the first positioning structure further includes an abutment driving unit capable of outputting linear motion, and the abutment pressing plate is installed at an output end of the abutment driving unit.

[0013] In one possible implementation, the assembly device further includes a pressing structure, which is disposed in the second direction and opposite to the second positioning structure, and the pressing structure can limit the size of the assembly area in the second direction together with the second positioning structure.

[0014] In one possible implementation, the compression structure includes:

[0015] A press-fit piece having a mating surface mating with the battery module;

[0016] and a pressing drive mechanism, wherein the pressing member is connected to the pressing drive mechanism and can move toward the second positioning structure under the drive of the pressing drive mechanism.

[0017] In one possible implementation, the pressing drive mechanism includes:

[0018] A pair of first lead screws parallel to each other;

[0019] And a first screw drive assembly, wherein the first screw drive assembly is connected to a pair of the first screws and can drive the pair of the first screws to rotate in the same direction, and the pressing piece is installed on the first screw and can move along the first screw.

[0020] In one possible implementation, the first lead screw drive assembly includes:

[0021] a first drive unit;

[0022] and a commutator assembly, wherein the commutator assembly has at least two output ends capable of outputting rotation in the same direction, the first drive unit is connected to a pair of the first lead screws via the commutator assembly, and the first lead screws are connected to the output ends.

[0023] In one possible implementation, the commutator assembly includes:

[0024] A first commutator, connected to the first driving unit, comprising a first input end and at least two first output ends, wherein the first input end is connected to the first driving unit, and one of the two first output ends is connected to one of a pair of first lead screws;

[0025] A second commutator, comprising a second input end and a second output end, wherein the second input end is connected to the other of the first output ends of the first commutator, and the second output end is connected to the other of the pair of first lead screws;

[0026] and a connecting column, through which the second input end is connected to the other first output end of the first commutator.

[0027] In a possible implementation, the assembling device further includes a pressing structure, which is arranged in the second direction and can apply a pressing force to the battery module under the action of the pressing structure.

[0028] In one possible implementation, the compression structure includes:

[0029] A pair of oppositely disposed clamping mechanisms having mating surfaces for mating with the pull plate;

[0030] and a clamping drive mechanism, a pair of the clamping mechanisms are connected to the clamping drive mechanism and can approach or move away from each other under the drive of the clamping drive mechanism.

[0031] In one possible implementation, the clamping mechanism includes:

[0032] Compacting blocks;

[0033] and a pressing force adjusting assembly, the pressing block is mounted on the pressing force adjusting assembly, and the pressing force adjusting assembly is configured to be able to adjust the pressing force of the pressing block on the pulling plate.

[0034] In one possible implementation, the pressing force adjustment component includes:

[0035] Mounting plate;

[0036] A guide column mounted on the mounting plate, and the pressing block is slidably mounted on the guide column;

[0037] and a pressure sensor, which is mounted on the guide column and located between the pressing block and the mounting plate.

[0038] In a possible implementation, the pressing force adjustment assembly further includes an elastic member, and the elastic member is connected between the pressure sensor and the pressing block.

[0039] In a possible implementation, the pressing block includes a first pressing portion and a second pressing portion, and the first pressing portion and the second pressing portion are vertically connected.

[0040] In one possible implementation, the pressing drive mechanism includes:

[0041] A pair of second lead screws parallel to each other;

[0042] And a second screw drive assembly, wherein the second screw drive assembly is connected to a pair of the second screws and can drive the pair of the second screws to rotate in the same direction, and the clamping mechanism is installed on the second screw and can move along the second screw.

[0043] In one possible implementation, the second lead screw drive assembly includes:

[0044] A second drive unit;

[0045] And a synchronous belt transmission assembly, wherein the synchronous belt in the synchronous belt transmission assembly is sleeved on the outer periphery of a pair of the second lead screws, and the second driving unit can drive the pair of the second lead screws to rotate in the same direction via the synchronous belt transmission assembly.

[0046] In a possible implementation, the clamping structure further includes a dust removal mechanism, and the dust removal mechanism is disposed on the clamping mechanism.

[0047] In a possible implementation, the dust removal mechanism includes a dust removal hood and an extension pipe, the dust removal hood has a cover area, and the extension pipe is connected to the dust removal hood and communicates with the cover area. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 A schematic structural diagram of an assembly device provided according to an embodiment of the present application is shown;

[0050] Figure 2 A schematic structural diagram of a compression structure provided according to an embodiment of the present application is shown;

[0051] Figure 3 A structural schematic diagram of a compression structure provided according to an embodiment of the present application is shown;

[0052] Figure 4Shows Figure 3 A partial enlarged view of the part C in the middle.

[0053] Reference numerals:

[0054] Base; 101-assembly area; 102-free end;

[0055] First positioning structure; 210-abutting against the pressure plate; 220-abutting against the driving unit;

[0056] Second positioning structure; 310-positioning plate;

[0057] Pressing structure; 410-pressing piece; 420-pressing drive mechanism; 421-first lead screw; 422-first lead screw drive assembly; 423-guide rail; 424-slider; 425-pressing back plate; 4221-first drive unit; 4222-commutator assembly; 4222a-first commutator; 4222b-second commutator; 4222c-connecting column; 4222a1-first input end; 4222a2-first output end; 4222b1-second input end; 4222b2-second output end;

[0058] Clamping structure; 510-clamping mechanism; 520-clamping drive mechanism; 511-clamping block; 512-clamping force adjustment assembly; 521-second lead screw; 522-second lead screw drive assembly; 5111-first clamping part; 5112-second clamping part; 5121-mounting plate; 5122-guide column; 5123-pressure sensor; 5124-elastic member; 5221-second drive unit;

[0059] Dust removal mechanism; 610-dust removal cover; 620-extension tube;

[0060] Control systems;

[0061] Alarm system;

[0062] 10-battery module; 11-battery cell unit; 12-pull plate. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] The assembly of power battery modules requires auxiliary positioning or size control by assembly devices. The main function of auxiliary positioning is that when the battery modules are subjected to processes such as welding and gluing, the position of the power battery modules is fixed based on the positioning function of the assembly device, thereby ensuring the smooth progress of the above processes. The main function of size control is to ensure that all dimensions of the power battery modules are within the tolerance range through the coordination between mechanisms, which is beneficial to improving the overall performance of the power battery modules.

[0065] In the application of the assembly device to complete the assembly of the power battery module, one of the more critical steps is to control the distance between the battery cell units of the battery module and the overall size of the power battery module composed of the battery cell units. Related technology When assembling the power battery module, it is necessary to use a tray or other mechanism with a specific restrictive effect set in the assembly device to complete the assembly. The tray and these mechanisms with specific restrictive effects are designed to accommodate or restrict power battery modules of specific sizes. During the assembly process, it is necessary to first place each battery cell unit on a dedicated tray or other mechanism, and then stack the battery module based on the specifications and dimensions of the tray and other mechanisms. The overall size of the power battery module is restricted by the tray and other mechanisms, and a tray or other mechanism is only suitable for the assembly of one power battery module, resulting in low compatibility and a small scope of application of the assembly device using a tray or other structure.

[0066] Based on the above-mentioned status quo and shortcomings of the assembly device, an embodiment of the present application provides an assembly device for a battery module, which is formed with an assembly area, in which the battery module can be assembled, or the battery module can be confined to the assembly area, thereby realizing welding, gluing and other processes of the battery module. The assembly device can adjust the size of the assembly area through the cooperation between various structures, thereby adapting to the assembly of more battery modules.

[0067] In the embodiments of the present application, each structure in the assembly device can be movably arranged or fixedly arranged, but it should be understood that at least a part of each structure can be movable, and these movably arranged structures can play a role in adjusting the size of the assembly area. It should be noted that each structure in the assembly device can independently complete the size adjustment of the assembly area, and each structure or part of each structure can also be combined with other functional mechanisms to achieve the adjustment of the size of the assembly area.

[0068] In the embodiment of the present application, based on the adjustable design of the assembly area in the assembly device, the assembly device can be adapted to more types of battery modules, and has the advantages of high compatibility and a wide range of applications.

[0069] Figure 1 FIG. 1 shows a schematic diagram of a structure of an assembly device provided according to an embodiment of the present application. In the embodiment of the present application, please refer to Figure 1 The assembling device includes a base 100 , a first positioning structure 200 and a second positioning structure 300 .

[0070] The base 100 serves as a supporting structure of the assembly device, and it can be designed in the form of a box, that is, the base 100 can be a box with a receiving cavity, and the top of the box can provide a working space for assembling the battery module 10. For example, the assembly area 101 can be formed on the top of the box, and the receiving cavity of the box can accommodate other parts of the assembly device. For example, the control system 700, alarm system 800 and other related hardware and circuit parts of the assembly device can be arranged in the receiving cavity. The base 100 in the form of a box structure can protect the structure, parts, etc. accommodated in the receiving cavity. Considering aspects such as heat dissipation, heat dissipation holes, heat dissipation fans and other structures can be set at appropriate positions of the box.

[0071] In addition to the box form, the base 100 can also be designed as a support frame form, that is, the base 100 is formed by splicing a plurality of support rods, which can effectively control the manufacturing cost of the base 100. A platform is designed on the top of the support frame, and the assembly area 101 can be formed on the platform.

[0072] In other embodiments, the base 100 may also adopt more structural forms, which is not limited in the present application.

[0073] The assembly area 101 on the base 100 is the place for assembling the battery module 10, and is also the place for assisting the positioning and controlling the size of the battery module 10. Each battery cell unit 11 in the battery module 10 can be placed in the assembly area 101 and assembled into the battery module 10 in the assembly area 101. During the assembly process, other devices can also be used to achieve welding, gluing and other operations on the battery module 10.

[0074] The first positioning structure 200 is at least partially movably disposed, and the first positioning structure 200 is configured to limit the size of the assembly area 101 in a first direction.

[0075] In the above description, the at least partially movable setting of the first positioning structure 200 includes at least two layers of content. The first layer of content is that the first positioning structure 200 belongs to an integral structure, a part of which can be movable, and the direction of the movement is a first direction. After moving to a certain position, the movable part can be fixed, so that an adjustable-size area can be formed between the movable part and the inactive part in the first positioning structure 200, thereby limiting the size of the assembly area 101 in the first direction; the second layer of content is that the first positioning structure 200 includes multiple independent components. Taking two components as an example, the two components can both be movably set, or one of them can be movably set and the other can be fixedly set. The movable part can be fixed. The overall result is that an adjustable-size area can be formed between the two components, thereby limiting the size of the assembly area 101 in the first direction.

[0076] It can be understood that in the above description, "limitation" includes at least two meanings. One is to limit the size of the assembly area 101 in the first direction to a fixed value, and the other is to be able to change the above fixed value. The combination of the two meanings realizes the adjustable size of the assembly area 101 in the first direction.

[0077] The second positioning structure 300 is configured to limit the size of the assembly area 101 at least on one side in the second direction. The second positioning structure 300 is arranged in a relatively flexible manner, and can be arranged in a fixed manner or in a movable manner, and its purpose is to achieve restrictions in other directions on the basis of the first positioning structure 200 limiting the assembly area 101 in the first direction, and the restrictions in other directions can be enclosing restrictions or open restrictions.

[0078] The enclosing restriction here means that the second positioning structure 300 is similar to the first positioning structure 200 mentioned above, and the assembly area 101 is restricted on both sides of the second direction, that is, the assembly area 101 has a fixed value in the second direction. Here, "restriction" also includes at least two meanings, one is to restrict the size of the assembly area 101 in the second direction to have a fixed value, and the other is to be able to change the above fixed value. The combination of the two meanings realizes that the size of the assembly area 101 in the second direction is adjustable. It can be understood that the first positioning structure 200 adopts an enclosing restriction.

[0079] The open restriction here means that the second positioning structure 300 can only restrict one side in the second direction, and the other side in the second direction is in an open state. The open restriction provides a basis for the intervention of the functional mechanism mentioned above. It should be pointed out here that the second direction can be defined as follows: there is a front side and a rear side in the second direction, which is similar to the front and rear in the direction of travel. When the assembly area 101 is restricted in the second direction, when restrictions are made on both the front and rear sides, that is, there can be a fixed value between the front and rear sides, this is an enclosing restriction. If only one of the front and rear sides is restricted, this is an open restriction. On the basis of the open restriction, combined with the restriction that may be provided by the functional mechanism, it can be transformed into an enclosing restriction.

[0080] Therefore, in the embodiment of the present application, one of the purposes of setting the second positioning structure 300 is to provide a basis for the intervention of the functional mechanism, that is, when the second positioning structure 300 adopts open restriction, the unrestricted side in the second direction can be realized by the functional mechanism. The functional mechanism here can, for example, refer to the pressing structure 400 described below.

[0081] The assembly device of the battery module 10 in the embodiment of the present application includes a base 100, a first positioning structure 200 and a second positioning structure 300, wherein the base 100 has an assembly area 101, and each battery cell unit 11 in the battery module 10 can be stacked in the assembly area 101, the first positioning structure 200 limits the size of the assembly area 101 in the first direction, and the second positioning structure 300 can at least limit the size of the assembly area 101 on one side in the second direction. The combination of the first positioning structure 200 and the second positioning structure 300 can at least limit the size of the assembly area 101 within a certain range, and based on the characteristics of the movable setting of the first positioning structure 200, the size of the assembly area 101 can also be adjusted within a certain range, so that the assembly device of the battery module 10 can adjust the size of its assembly area 101 according to different power batteries, thereby improving the compatibility of the assembly device and expanding its scope of application.

[0082] In the embodiment of the present application, it can be understood that, by limiting the assembly area 101 in the first direction by the first positioning structure 200 and limiting the assembly area 101 in the second direction by the second positioning structure 300, the auxiliary positioning function and size control function of the assembly area 101 on the battery module 10 can be achieved. The first direction and the second direction are not limited, and the first direction and the second direction can be adjusted accordingly according to the type of different battery modules 10.

[0083] In some embodiments, please refer to Figure 1 , the first direction and the second direction are perpendicular to each other, and the first direction and the second direction are in the same plane, Figure 1In the figure, the first direction is the X direction, and the second direction is the Y direction. For the battery module 10, the first direction is the stacking direction of the battery cell units 11, and the second direction is the length direction of the battery cell units 11. It can be understood that the first direction and the second direction are set as above, so that the assembly device can assemble the square battery module 10.

[0084] Specifically, the battery cell units 11 constituting the battery module 10 can be stacked in sequence along the Y direction, and the two ends thereof in the length direction, i.e., in the X direction, can be restricted by the first positioning structure 200, and in the Y direction, can be restricted by the second positioning structure 300. The battery module 10 can be assembled by the combination of the first positioning structure 200 and the second positioning structure 300, which plays an auxiliary positioning function or a size control function for the battery module 10.

[0085] In combination with the foregoing, when the first direction and the second direction are adjusted, or when the first direction and the second direction are in other combinations, the assembly device can also be used to assemble other types of battery modules 10 .

[0086] In the following embodiments, in order to simplify the description and understanding, the following embodiments will take the square battery module as an example to make a detailed description of the various structures, functional mechanisms, etc. of the assembly device. In the following description, the various structures mainly refer to the first positioning structure 200 and the second positioning structure 300, and the functional mechanisms mainly refer to the pressing structure 400, the clamping structure 500, the dust removal mechanism 600, etc.

[0087] In some embodiments, please refer to Figure 1 The second positioning structure 300 is disposed at one side in the second direction and is fixedly arranged. The assembly area 101 surrounded by the first positioning structure 200 and the second positioning structure 300 has a free end 102 .

[0088] In combination with the foregoing, the second positioning structure 300 here adopts an open restriction method. The second positioning structure 300 is fixedly arranged, and it can enclose an assembly area 101 with a free end 102 with the first positioning structure 200. For the free end 102, it can provide a basis for the intervention of the functional mechanism.

[0089] In the above embodiment, the configuration of the second positioning structure 300 can simplify its structural composition, which is equivalent to simplifying the combination of the first positioning structure 200 and the second positioning structure 300. By reserving the free end 102, it is convenient for the functional mechanism to intervene, thereby realizing the auxiliary positioning or size control function of the battery module 10. At the same time, the functional mechanism can also realize its set function together, such as the pressing function set by the pressing structure 400 in the following embodiment. The open restriction method of the second positioning structure 300 breaks the traditional all-round restriction solidification idea, which can make the assembly device more compact in structure and more concentrated in function realization.

[0090] In some embodiments, please refer to Figure 1 The first positioning structure 200 includes at least one group of abutment plates 210 that are parallel to each other and can move closer to or farther from each other along a first direction. The second positioning structure 300 includes a fixed positioning plate 310 that is perpendicular to the abutment plates 210 .

[0091] For a square battery module, the abutting plate 210 and the positioning plate 310 can enclose an assembly area 101 of a substantially rectangular structure, and the free end 102 is reserved on one side of the assembly area 101. When the abutting plates 210 move closer or farther away from each other, the size of the assembly area 101 can be adjusted.

[0092] It should be pointed out here that the abutting plate 210 can abut on both sides of the battery module 10 in the first direction (i.e., the X direction). According to the definition of the arrangement direction of the battery cell unit 11 in the previous text, the battery module 10 on both sides in the first direction generally needs to be designed with a plurality of positive and negative pole ears. Therefore, for the abutting plate 210, it is necessary to reserve an escape area for the pole ear group to pass through. In addition, in order to ensure the abutting effect, the rest of the abutting plate 210 can be designed as a flat plate. Of course, in other embodiments, the abutting plate 210 can also be designed into other shapes. The positioning plate 310 is arranged in the second direction (i.e., the Y direction). According to the definition of the arrangement direction of the battery cell unit 11 in the previous text, the two sides of the battery module 10 in the second direction are the areas where the end plates of the battery module 10 are located. Therefore, for the positioning plate 310, it needs to be designed to match the structure of the end plate, and a concave-convex structure can be provided on the positioning plate 310 to cooperate with the corresponding structure on the end plate. In other embodiments, the positioning plate 310 may also be designed into other shapes.

[0093] In the above embodiment, the abutting pressure plate 210 and the positioning plate 310 are combined to enclose the assembly area 101, which has a simple structure, convenient layout, and good stability.

[0094] With respect to the above-mentioned embodiment, the execution of the function of the first positioning structure 200 needs to rely on the movement of the abutting pressure plate 210, and the execution of the function of the second positioning structure 300 needs to rely on the fixed setting of the positioning plate 310. It can be understood that in order to realize the movement of the abutting pressure plate 210, the abutting pressure plate 210 can be installed on a mechanism that can output linear motion, and in order to realize the fixed setting of the positioning plate 310, the positioning plate 310 can be fixedly installed on the base 100, and the installation can be achieved by mechanical connection, such as assembly by screws, welding, or by matching or biting between structures to achieve fixed installation.

[0095] To achieve the installation of the abutment pressure plate 210, in some embodiments, please refer to Figure 1 The first positioning structure 200 further includes an abutment driving unit 220 capable of outputting linear motion, and the abutment pressing plate 210 is installed at the output end of the abutment driving unit 220 .

[0096] Thus, the abutting plate 210 can be driven to move in the first direction by starting the abutting driving unit 220, which has a simple structure and can improve the stability of the abutting plate 210 when moving. It can be understood that one abutting driving unit 220 can be provided for each abutting plate 210, or multiple abutting plates 210 can be connected to the same abutting driving unit 220. The abutting driving unit 220 can be provided on one side in the first direction, or on both sides in the first direction.

[0097] In some specific embodiments, the abutment drive unit 220 may be a linear motor, a cylinder, an oil cylinder, etc. Taking the cylinder as an example, the abutment pressure plate 210 is on the cylinder shaft on which the cylinder is installed. To improve installation reliability, a connection structure, such as a connection plate or a connection block, may also be designed on the cylinder shaft, and then the abutment pressure plate 210 is connected to the connection structure.

[0098] In the aforementioned embodiment, in order to facilitate supporting the battery module 10, the abutting plate 210 and the positioning plate 310 can be designed to be L-shaped, that is, the abutting plate 210 and the positioning plate 310 have two vertical side walls, one of which can abut or be positioned at a corresponding position on the battery module 10, and the other side wall can be supported under the battery module 10 to support the battery module 10.

[0099] In addition, it is understood that when assembling the battery module 10, Figure 1Taking the shown orientation as an example, it is necessary to operate on the upper and lower sides of the battery module 10. Therefore, for the abutment pressure plate 210, sufficient space must be reserved between the two abutment pressure plates 210 to allow operations to be performed above or below the battery module 10, such as setting a pull plate 12 for the battery module 10 as will be described below.

[0100] In addition to the first positioning structure 200 and the second positioning structure 300 introduced above, the first positioning structure 200 and the second positioning structure 300 can also be deformed. For example, they can be designed to be foldable. When the battery module 10 needs to be assembled, they can be flipped up and limit the assembly area 101. After the assembly is completed, they can be folded down and stored on the top of the base 100 or inside the base 100.

[0101] Figure 2 A structural schematic diagram of a pressing structure provided according to an embodiment of the present application is shown.

[0102] In some embodiments, please refer to Figure 2 The assembly device includes a pressing structure 400, which is arranged in the second direction and opposite to the second positioning structure 300. The pressing structure 400 can limit the size of the assembly area 101 in the second direction together with the second positioning structure 300.

[0103] In the above embodiment, the pressing structure 400, as a functional mechanism, can be combined with the second positioning structure 300 to limit the size of the assembly area 101. At the same time, the pressing structure 400 can also apply a pressing force to the battery module 10 to control the size of the battery module 10 in the Y direction.

[0104] In this embodiment, the second positioning structure 300 can adopt the positioning plate 310 fixedly arranged above, and when the pressing structure 400 is in motion, the positioning plate 310 can be used as a reference, so that the battery module 10 can lean against the positioning plate 310 along the Y direction under the action of the pressing force. Of course, other types of second positioning structures 300 can also be selected to form a combination with the pressing structure 400.

[0105] For the battery module 10, it is formed by stacking a plurality of battery cells 11, and aerogel, structural glue (AB glue) and other materials with non-fixed shapes are arranged between the battery cells 11, which may easily cause the size of the battery module 10 composed of the plurality of battery cells 11 to fail to meet the set size requirements after the stacking of the plurality of battery cells 11 is completed. At this time, the battery module 10 needs to be further compressed so that the size of the battery module 10 meets the design requirements. The above process is the restraint operation of the battery module 10. In the embodiment of the present application, the restraint operation can be completed by the combination of the pressing structure 400 and the second positioning structure 300. The process is generally as follows: adjust the size of the first positioning structure 200 along the X direction, fix the second positioning structure 300, and then place the battery cell 11 and the related components of the battery module 10, such as the end plate, in the first positioning structure 200 in sequence and close to the second positioning structure 300, and then control the pressing structure 400 to apply a pressing force to the battery module 10 and maintain it for a period of time to achieve the restraint operation. In addition, after the first positioning structure 200, the second positioning structure 300 and the pressing structure 400 restrict the battery module 10 in the assembly area 101, the battery module 10 may be coated with glue. When the coating operation is performed, the assembly device needs to be moved to the corresponding coating station.

[0106] In some embodiments, please refer to Figure 2 The pressing structure 400 includes a pressing piece 410 and a pressing drive mechanism 420 . The pressing piece 410 has a mating surface that matches the battery module 10 . The pressing piece 410 is connected to the pressing drive mechanism 420 and moves toward the second positioning structure 300 under the drive of the pressing drive mechanism 420 .

[0107] The pressing piece 410 can directly act on the end plate of the battery module 10. The end plate is arranged on both sides of the battery module 10 along the Y direction. In order to ensure the transmission effect of the force, the pressing piece 410 is designed to have a matching surface that can match with the end plate, which can effectively increase the contact area between the two, thereby improving the reliability of the assembly relationship. The pressing piece 410 moves toward the second positioning structure 300 under the drive of the pressing drive mechanism 420 to achieve the above-mentioned restraint operation, and at the same time, it can also achieve the restriction and positioning of the battery module 10.

[0108] In some specific embodiments, the pressing part 410 can be made of a metal material with high hardness and strength. Of course, in order to facilitate the smooth progress of the restraint operation and at the same time avoid damaging the battery module 10 due to the high hardness of the pressing part 410, the pressing part 410 can be made of a material with moderate hardness such as copper.

[0109] In some embodiments, please refer to Figure 2The pressing drive mechanism 420 includes a pair of mutually parallel first lead screws 421 and a first lead screw drive assembly 422. The first lead screw drive assembly 422 connects the pair of first lead screws 421 and can drive the pair of first lead screws 421 to rotate in the same direction. The pressing part 410 is installed on the first lead screw 421 and can move along the first lead screw 421.

[0110] The first lead screw 421 can form a motion track of the pressing piece 410 . By designing the transmission matching relationship between the pressing piece 410 and the first lead screw 421 , it can be achieved that when the first lead screw 421 rotates, the pressing piece 410 can move along the first lead screw 421 .

[0111] In the above embodiment, the pressing drive mechanism 420 is designed in a manner that the rotation of the first lead screw 421 is converted into the movement of the pressing part 410. It can be understood that in this embodiment, the first lead screw 421 can be a ball screw, which is assembled with the pressing part 410 by means of a threaded connection. During the rotation of the first lead screw 421, based on the threaded assembly between the first lead screw 421 and the pressing part 410, the pressing part 410 can move along the first lead screw 421.

[0112] In some embodiments, please refer to Figure 2 A guide structure is also provided on one side of the first lead screw 421 . The guide structure has a guide rail 423 parallel to the first lead screw 421 and a slider 424 that can move along the guide rail 423 . The pressing piece 410 is connected to the slider 424 .

[0113] Therefore, a guiding structure is provided between the pressing part 410 and the first lead screw 421, and the cooperation between the pressing part 410 and the first lead screw 421 is converted into cooperation between the guiding structure and the first lead screw 421, so as to avoid processing the pressing part 410. The rotation of the first lead screw 421 is first transmitted to the guiding structure, and then transmitted to the pressing part 410 by the guiding structure. The transmission path is lengthened, which is also beneficial to reduce vibration and improve the stability of the pressing part 410 during movement.

[0114] In some embodiments, in order to further improve the stability of the movement of the pressing piece 410 along the first screw 421, a smooth guide rod can be set on one side of the first screw 421. The guide rod is set parallel to the first screw 421 and can guide the movement of the pressing piece 410.

[0115] In some embodiments, the pressing drive mechanism 420 may also be provided with more pairs of first lead screws 421 , which may also play a role in improving the stability of movement.

[0116] In some embodiments, please refer to Figure 2A pressing back plate 425 is also provided on the guide structure, and the pressing part 410 is installed on the pressing back plate 425. The pressing back plate 425 is a gantry structure. Installing the pressing part 410 on the pressing back plate 425 can improve the stability of the pressing part 410 during movement.

[0117] As an example, the pressing piece 410 is detachably mounted on the pressing back plate 425, so that the pressing piece 410 can be repaired and replaced. Combined with the above description, it can be seen that the assembly device in the embodiment of the present application can be adapted to the assembly of various types of battery modules 10. Here, the pressing piece 410 is designed to be repairable and replaceable to match the characteristics of the assembly device. When the battery module 10 is assembled using the assembly device, different pressing pieces 410 can be matched according to different battery modules 10.

[0118] In some embodiments, please refer to Figure 2 The first screw drive assembly 422 includes a first drive unit 4221 and a commutator assembly 4222, the commutator assembly 4222 has at least two output ends capable of outputting rotation in the same direction, the first drive unit 4221 is connected to a pair of first screws 421 via the commutator assembly 4222, and the first screws 421 are connected to the output ends.

[0119] The first drive unit 4221 is used to provide power to the commutator assembly 4222. Under the action of the first drive unit 4221, the commutator assembly 4222 can switch the power output direction, thereby achieving the purpose of using one first drive unit 4221 to synchronously drive a pair of first lead screws 421 to rotate in the same direction.

[0120] In some specific embodiments, the first driving unit 4221 may be a stepper motor or a servo motor.

[0121] In some specific embodiments, a gear set is disposed inside the commutator assembly 4222, and the gear set is connected to the first drive unit 4221. For example, the gear set is connected to the output shaft of the stepper motor, and the output shaft will drive the first gear in the gear set to rotate, and then by setting another second gear that has a vertical meshing relationship with the first gear, the second gear can rotate, and the switching of the power output direction is also realized.

[0122] It should be noted that the above structural description of the commutator assembly 4222 is only for illustration and is a simplified description. When actually designing and selecting the commutator assembly 4222, it is necessary to consider different application scenarios and load requirements. For example, in some commutator assemblies 42222, a reducer or other structure may be provided between the first drive unit 4221 and the gear set.

[0123] In other embodiments, the first screw drive assembly 422 may also be designed separately. For example, a first drive unit 4221 is provided for each first screw 421 , and the first drive unit 4221 can directly drive the first screw 421 to rotate.

[0124] In some embodiments, please refer to Figure 2 The commutator assembly 4222 includes a first commutator 4222a, a second commutator 4222b, and a connecting column 4222c. The first commutator 4222a is connected to the first drive unit 4221, and the first commutator 4222a includes a first input end 4222a1 and at least two first output ends 4222a2, the first input end 4222a1 is connected to the first drive unit 4221, one of the two first output ends 4222a2 is connected to one of the pair of first lead screws 421, and the other of the two first output ends 4222a2 is connected to the second commutator 4222b. The second commutator 4222b includes a second input end 4222b1 and a second output end 4222b2, the second input end 4222b1 is connected to the first commutator 4222a, and the second output end 4222b2 is connected to the other of the pair of first lead screws 421. The connecting column 4222c is connected between the first commutator 4222a and the second commutator 4222b.

[0125] by Figure 2 Taking the shown orientation as an example, the first drive unit 4221 is arranged along the X direction, and the rotation of its output takes the Y direction as the virtual axis of rotation. The first input end 4222a1 and a first output end 4222a2 (output end A) of the first commutator 4222a are located on both sides of the first commutator 4222a along the X direction, and the other first output end 4222a2 (output end B) is arranged along the Y direction, and the output end B is connected to a first lead screw 421; the second input end 4222b1 of the second commutator 4222b is arranged along the X direction and opposite to a first output end 4222b1 of the first commutator 4222a, the second output end 4222b2 of the second commutator 4222b is arranged along the Y direction and connected to another first lead screw 421, and the connecting column 4222c is connected between the output end A of the first commutator 4222a and the second input end 4222b1 of the second commutator 4222b. After starting the first driving unit 4221, the first commutator 4222a can output rotational motion at the two first output ends 4222b1, and under the action of the connecting column 4222c, the second input end 4222b1 and the second output end 4222b2 of the second commutator 4222b can also rotate, ultimately making the output end A, the output end B, the second input end 4222b1 and the second output end 4222b2 able to rotate at the same speed, and the rotation directions of the output end B and the second output end 4222b2 are consistent, so that a pair of first lead screws 421 can rotate in the same direction.

[0126] The commutator assembly 4222 achieves a unified rotation pace of a pair of first lead screws 421 through the cooperation of the first commutator 4222a, the second commutator 4222b and the connecting column 4222c, and has reliable transmission and high precision, which can improve the assembly accuracy of the battery module 10.

[0127] In addition to the above-mentioned use of the first lead screw 421 to form the pressing drive mechanism 420, in other embodiments, the pressing drive mechanism 420 can be designed in the form of a synchronous belt or a linear module. Taking the synchronous belt as an example, for example, a synchronous belt transmission assembly can be arranged along the Y direction, and a connecting block can be arranged on the synchronous belt, and the connecting block can be connected to the pressing piece 410. As the connecting block runs, the pressing piece 410 can move with the connecting block. In order to improve the reliability of movement, guide rods and other structures can be arranged on both sides of the synchronous belt. Taking the linear module as an example, the linear module can be arranged along the Y direction, and the pressing piece 410 can be installed on its guide rail. Starting the linear module can drive the pressing piece 410 to move along the Y direction.

[0128] So far, the above embodiment has made a detailed introduction to the first positioning structure 200, the second positioning structure 300, the pressing structure 400 and the cooperation between the pressing structure 400 and the second positioning structure 300. Figure 1 and Figure 2 , the first positioning structure 200, the second positioning structure 300 and the pressing structure 400 can be used to realize the stacking, restraining and gluing processes of the battery module 10, and these processes can be smoothly carried out after the battery module 10 is assisted in positioning and size control as described above. During the assembly process of the battery module 10, in order to prevent the size of the battery module 10 from increasing and rebounding after being restrained, a pull plate 12 can be set on the upper and lower sides of the battery module 10. The pull plate 12 can hold the two ends of the battery module 10 along the Y direction, and the pullback force provided by the pull plate 12 can prevent the battery module 10 from rebounding as described above. When the pull plate 12 is set to further ensure the dimensional accuracy of the battery module 10, the battery module 10 can be subjected to welding and pressing operations and other processes.

[0129] Figure 3 A structural schematic diagram of a compression structure provided according to an embodiment of the present application is shown; Figure 4 Shows Figure 3 A partial enlarged view of the part C in the middle.

[0130] In some embodiments, please refer to Figure 3 The assembling device further includes a clamping structure 500 , which is arranged in the second direction and can apply a clamping force to the battery module 10 under the action of the pressing structure 400 .

[0131] The aforementioned pressing structure 400 acts on the battery module 10, specifically, can directly act on the end plate in the battery module 10, mainly completing the restraint operation on the battery module 10, and the clamping structure 500 acts on the pull plate 12 and the end plate, which can effectively control the gap between the pull plate 12 and the end plate or the size of the two, thereby facilitating subsequent high-precision welding operations.

[0132] In some embodiments, please refer to Figure 3 and Figure 4 The clamping structure 500 includes a pair of relatively arranged clamping mechanisms 510 and a clamping driving mechanism 520. The clamping mechanism 510 has a mating surface that cooperates with the pulling plate 12. The clamping mechanism 510 is connected to the clamping driving mechanism 520 and can move closer to or farther away from each other under the drive of the clamping driving mechanism 520.

[0133] For the battery module 10, the end plates arranged at both ends in the Y direction have the same shape, so the pair of clamping mechanisms 510 can be designed to have the same structure. When the end plates and the pull plate 12 are clamped, the pair of clamping mechanisms 510 can act on the pull plate 12 in the same way.

[0134] The clamping drive mechanism 520 can act on the pulling plate 12 in the process of driving the clamping mechanisms 510 to approach each other. When there is no need to continue clamping, the clamping mechanisms 510 can be separated under the drive of the clamping drive mechanism 520.

[0135] When designing the clamping mechanism 510, it is necessary to focus on the matching relationship between the clamping mechanism 510 and the pull plate 12, such as the design of the matching surface and the design of the clamping force. For example, the contact area between the clamping mechanism 510 and the pull plate 12 can be increased as much as possible so that the clamping force can be evenly distributed on the pull plate 12.

[0136] When designing the clamping drive mechanism 520, it is necessary to focus on the stability and transmission accuracy of the clamping mechanism 510. It is understandable that the clamping drive mechanism 520 can drive only one clamping mechanism 510 to move, or can drive both of the clamping mechanisms 510 to move.

[0137] In some embodiments, please refer to Figure 3 and Figure 4 The clamping mechanism 510 includes a clamping block 511 and a clamping force adjusting assembly 512 . The clamping block 511 is installed on the clamping force adjusting assembly 512 . The clamping force adjusting assembly 512 is configured to adjust the clamping force of the clamping block 511 on the pulling plate 12 .

[0138] A clamping force adjustment component 512 is constructed here. After the clamping block 511 acts on the pulling plate 12, the clamping force adjustment component 512 can adjust the clamping effect of the clamping block 511 on the pulling plate 12 according to the force feedback effect, so that the clamping effect of the clamping block 511 on the pulling plate 12 can be controlled within the required range, thereby preventing damage to the pulling plate 12, the battery module 10, etc.

[0139] In some embodiments, please refer to Figure 4 The clamping force adjustment assembly 512 includes a mounting plate 5121, a guide column 5122 and a pressure sensor 5123. The guide column 5122 is mounted on the mounting plate 5121, the clamping block 511 is slidably mounted on the guide column 5122, and the pressure sensor 5123 is mounted on the guide column 5122 and is located between the clamping block 511 and the mounting plate 5121.

[0140] It is understandable that when the clamping block 511 is pressed against the pulling plate 12, the reaction force exerted by the pulling plate 12 on the clamping block 511 can act on the pressure sensor 5123, and the pressure sensor 5123 can receive the reaction force information and control the action of the clamping drive mechanism 520 through the control of the control system 700. The reaction force information can be transmitted to the control system 700 of the assembly device. For example, when the clamping force is insufficient, the clamping drive mechanism 520 can be controlled to continue to drive the clamping mechanism 510 to move toward each other. When the clamping force is too high, the clamping drive mechanism 520 can also be controlled to drive the clamping mechanism 510 to move away from each other. In the above process, when the reaction force is too high, an alarm prompt can also be issued through the alarm system 800.

[0141] The clamping force adjustment component 512 can accurately feedback the clamping force information through the combination of the mounting plate 5121 , the guide column 5122 and the pressure sensor 5123 , which plays a positive role in maintaining the normal progress of the process and preventing damage to the battery module 10 .

[0142] In some embodiments, please refer to Figure 4 The clamping force adjustment component 512 may further include an elastic member 5124 , which may be a spring, a compression spring, etc. The elastic member 5124 is connected between the pressure sensor 5123 and the clamping block 511 .

[0143] The setting of the elastic member 5124 makes the contact between the clamping block 511 and the pull plate 12 a floating contact mode, which can improve the service life of the clamping block 511 and the pull plate 12 while maintaining the clamping effect, and can also prevent damage to the pull plate 12 and the battery module 10. It can be understood that due to the setting of the elastic member 5124, the clamping force can be buffered during the initial time when the clamping block 511 contacts the pull plate 12, and the clamping force is gradually increased to the required force. Specifically, when the clamping block 511 just contacts the pull plate 12, based on the elastic effect of the elastic member 5124, the clamping block 511 can contact the pull plate 12 in a flexible contact manner, which can prevent the generation of an instantaneous large force between the pull plate 12 and the clamping block 511, and play a role in protecting the pull plate 12 and the clamping block 511. Under the further drive of the clamping drive mechanism 520, the clamping block 511 will gradually act on the pull plate 12 with a greater clamping force. In summary, under the drive of the clamping drive mechanism 520, based on the setting of the elastic member 5124, the movement of the clamping block 511 will lag behind the mounting plate 5121, so that the clamping block 511 can act on the pulling plate 12 in a gradually increasing and gentle manner.

[0144] In some embodiments, please refer to Figure 4 The pressing block 511 includes a first pressing portion 5111 and a second pressing portion 5112, and the first pressing portion 5111 and the second pressing portion 5112 are vertically connected.

[0145] The clamping block 511 of the above-mentioned structural form can form an L-shaped pressing surface between the first clamping portion 5111 and the second clamping portion 5112, and the pressing surface can just fit into the corner of the pull plate 12, thereby increasing the contact area between the clamping block 511 and the pull plate 12, thereby achieving the purpose of uniform clamping force.

[0146] In some specific embodiments, the clamping block 511 can be made of a metal material with high hardness and strength. Of course, in order to facilitate the smooth progress of the welding clamping operation and to prevent the pull plate 12 and other structures from being damaged due to the high hardness of the clamping block 511, the clamping block 511 can be made of a material with moderate hardness such as copper.

[0147] In some embodiments, please refer to Figure 3 The clamping drive mechanism 520 includes a pair of second screws 521 parallel to each other and a second screw drive assembly 522. The second screw drive assembly 522 connects the pair of second screws 521 and can drive the pair of second screws 521 to rotate in the same direction. The clamping mechanism 510 is installed on the second screw 521 and can move along the second screw 521.

[0148] The second lead screw 521 can form a motion track of the clamping mechanism 510 . By designing the transmission matching relationship between the clamping mechanism 510 and the second lead screw 521 , it can be achieved that when the second lead screw 521 rotates, the clamping mechanism 510 can move along the second lead screw 521 .

[0149] In the above embodiment, the clamping drive mechanism 520 is designed in such a way that the rotation of the second lead screw 521 is converted into the movement of the clamping mechanism 510. It can be understood that in this embodiment, the second lead screw 521 can adopt a trapezoidal lead screw, and by reasonably designing the positive direction thread of the trapezoidal lead screw, a pair of clamping mechanisms 510 can be moved towards each other or away from each other along the second lead screw 521.

[0150] In some embodiments, please refer to Figure 3 In order to improve the movement stability of the clamping mechanism 510, a guide rod or other structure may be provided on one side of the second lead screw 521. The guide rod is provided parallel to the second lead screw 521 to guide the movement of the clamping mechanism 510.

[0151] In some embodiments, please refer to Figure 3 The second screw drive assembly 522 includes a second drive unit 5221 and a synchronous belt transmission assembly (not shown in the figure). The synchronous belt in the synchronous belt transmission assembly is arranged on the outer periphery of a pair of second screws 521. The second drive unit 5221 can drive the pair of second screws 521 to rotate in the same direction via the synchronous belt transmission assembly.

[0152] Specifically, the second drive unit 5221 serves as the power input component of the synchronous belt transmission assembly, which can drive the synchronous belt to rotate in the circumferential direction. By reasonably constructing the force relationship between the synchronous belt and the second lead screw 521, the second lead screw 521 can be driven to rotate during the operation of the synchronous belt.

[0153] In some specific embodiments, the second driving unit 5221 may be a stepper motor or a servo motor.

[0154] In some embodiments, please refer to Figure 4 The clamping structure 500 also includes a dust removal mechanism 600 , which is disposed on the clamping mechanism 510 .

[0155] Here, the clamping mechanism 510 for assisting in the clamping welding operation and the dust removal mechanism 600 for performing the dust removal operation are designed together in the clamping structure 500, which can effectively simplify the structure of each functional mechanism in the assembly device and also make the assembly device more compact in structure.

[0156] Please refer to Figure 4The dust removal mechanism 600 can be arranged at the position of the clamping mechanism 510 that needs to directly contact the pulling plate 12. For example, the dust removal mechanism 600 can be directly installed on the aforementioned clamping block 511, so that the dust removal mechanism 600 can be closer to the welding area, and the welding slag, dust, etc. can be discharged conveniently and timely.

[0157] In some embodiments, please refer to Figure 4 The dust removal mechanism 600 includes a dust removal cover 610 and an extension pipe 620. The dust removal cover 610 has a cover area. The extension pipe 620 is connected to the dust removal cover 610 and communicates with the cover area.

[0158] When performing dust removal operations, the cover area can cover the welding area, so that welding slag and dust can gather in the cover area and then be discharged through the extension pipe 620.

[0159] In some embodiments, the dust hood 610 may be designed as a gathering structure, for example, larger outside and smaller inside, so that welding slag and dust can gather inside the dust hood 610 .

[0160] In some embodiments, a plurality of extension tubes 620 may be connected to the dust hood 610 , and the plurality of extension tubes 620 may enable welding slag and dust at various locations in the dust hood 610 to be discharged through the extension tubes 620 .

[0161] In some embodiments, a plurality of dust removal mechanisms 600 may be provided on the clamping mechanism 510 , and the number of dust removal mechanisms 600 may be set according to the arrangement and number of welding positions.

[0162] The battery module 10 involved in the embodiment of the present application can be applied to electrical equipment such as vehicles, that is, it can provide electrical energy for electrical equipment such as vehicles. The vehicle can be a car, a bus, a truck, an electric balance car, etc.

[0163] The vehicle may include a vehicle body, an axle and a motor, wherein the battery pack, the axle and the motor may all be arranged on the vehicle body. The battery pack may be electrically connected to the motor, the motor may be connected to the axle, and the battery pack may supply power to the motor so that the motor may rotate, and the motor may drive the axle to rotate during the rotation process, so that the vehicle may travel.

[0164] The vehicle body may include a vehicle chassis and a vehicle body disposed on the chassis, the vehicle body may have a passenger compartment, the passenger compartment may be provided with a driver's seat, a crew seat, etc., and the driver may sit in the driver's seat to operate the vehicle. For example, the vehicle body may also be provided with a steering wheel, a clutch, a brake, and other structural parts that enable the vehicle to achieve complete functions, which are not limited in this application.

[0165] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0166] In the description of the present invention, it should be understood that the terms "including" and "having" and any variations thereof used in the present application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0167] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can make 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. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery module (10) assembly device, characterized in that: include: A base (100) having an assembly area (101); A first positioning structure (200), at least partially movably arranged, and the first positioning structure (200) is configured to limit the size of the assembly area (101) in a first direction; and a second positioning structure (300) configured to limit the size of the assembly area (101) at least on one side in the second direction.

2. The assembly device according to claim 1, characterized in that: The second positioning structure (300) is arranged at one side in the second direction and is fixedly arranged, and an assembly area (101) surrounded by the first positioning structure (200) and the second positioning structure (300) has a free end (102).

3. The assembly device according to claim 1, characterized in that: The first direction and the second direction are perpendicular to each other, and the first direction and the second direction are in the same plane.

4. The assembly device according to claim 3, characterized in that: The first positioning structure (200) comprises at least one group of abutment plates (210) which are parallel to each other and can move closer to or farther from each other along a first direction, and the second positioning structure (300) comprises a fixed positioning plate (310) which is perpendicular to the abutment plates (210).

5. The assembly device according to claim 4, characterized in that: The first positioning structure (200) further comprises an abutment driving unit (220) capable of outputting linear motion, and the abutment pressing plate (210) is mounted on the output end of the abutment driving unit (220).

6. The assembly device according to any one of claims 1 to 5, characterized in that: The assembly device further comprises a pressing structure (400), wherein the pressing structure (400) is arranged in the second direction and opposite to the second positioning structure (300), and the pressing structure (400) can limit the size of the assembly area (101) in the second direction together with the second positioning structure (300).

7. The assembly device according to claim 6, characterized in that: The compression structure (400) comprises: A pressing piece (410) having a mating surface that matches with the battery module (10); and a pressing drive mechanism (420), wherein the pressing member (410) is connected to the pressing drive mechanism (420) and can move toward the second positioning structure (300) under the drive of the pressing drive mechanism (420).

8. The assembly device according to claim 7, characterized in that: The pressing drive mechanism (420) comprises: A pair of first lead screws (421) parallel to each other; And a first screw drive assembly (422), wherein the first screw drive assembly (422) is connected to a pair of the first screws (421) and can drive the pair of the first screws (421) to rotate in the same direction, and the pressing piece (410) is installed on the first screw (421) and can move along the first screw (421).

9. The assembly device according to claim 8, characterized in that: The first screw drive assembly (422) comprises: A first driving unit (4221); and a commutator assembly (4222), wherein the commutator assembly (4222) has at least two output ends capable of outputting rotation in the same direction, wherein the first drive unit (4221) is connected to a pair of the first lead screws (421) via the commutator assembly (4222), and the first lead screws (421) are connected to the output ends.

10. The assembly device according to claim 9, characterized in that: The commutator assembly (4222) comprises: a first commutator (4222a), connected to the first drive unit (4221), comprising a first input end (4222a1) and at least two first output ends (4222a2), wherein the first input end (4222a1) is connected to the first drive unit (4221), and one of the two first output ends (4222a2) is connected to one of the pair of first lead screws (421); a second commutator (4222b), comprising a second input end (4222b1) and a second output end (4222b2), wherein the second input end (4222b1) is connected to the other of the first output ends (4222a2) of the first commutator (4222a), and the second output end (4222b2) is connected to the other of the pair of first lead screws (421); and a connecting column (4222c), wherein the second input end (4222b1) is connected to the other first output end (4222a2) of the first commutator (4222a) through the connecting column (4222c).

11. The assembly device according to claim 6, characterized in that: The assembling device further comprises a pressing structure (500), wherein the pressing structure (500) is arranged in the second direction and is capable of applying a pressing force to the battery module (10) under the action of the pressing structure (400).

12. The assembly device according to claim 11, characterized in that: The compression structure (500) comprises: A pair of pressing mechanisms (510) arranged opposite to each other, having a matching surface for matching with the pulling plate (12); and a clamping drive mechanism (520), wherein a pair of the clamping mechanisms (510) are connected to the clamping drive mechanism (520) and can move closer to or farther from each other under the drive of the clamping drive mechanism (520).

13. The assembly device according to claim 12, characterized in that: The pressing mechanism (510) comprises: A pressing block (511); and a pressing force adjustment component (512), the pressing block (511) being mounted on the pressing force adjustment component (512), the pressing force adjustment component (512) being configured to be able to adjust the pressing force of the pressing block (511) on the pulling plate (12).

14. The assembly device according to claim 13, characterized in that: The pressing force adjustment component (512) comprises: Mounting plate (5121); A guide column (5122) is mounted on the mounting plate (5121), and the pressing block (511) is slidably mounted on the guide column (5122); and a pressure sensor (5123) mounted on the guide column (5122) and located between the pressing block (511) and the mounting plate (5121).

15. The assembly device according to claim 14, characterized in that: The pressing force adjustment assembly (512) further comprises an elastic member (5124), wherein the elastic member (5124) is connected between the pressure sensor (5123) and the pressing block (511).

16. The assembly device according to claim 13, characterized in that: The pressing block (511) comprises a first pressing portion (5111) and a second pressing portion (5112), and the first pressing portion (5111) and the second pressing portion (5112) are vertically connected.

17. The assembly device according to claim 12, characterized in that: The pressing drive mechanism (520) comprises: A pair of second lead screws (521) parallel to each other; and a second screw drive assembly (522), wherein the second screw drive assembly (522) is connected to a pair of the second screws (521) and is capable of driving the pair of the second screws (521) to rotate in the same direction, and the clamping mechanism (510) is installed on the second screw (521) and is capable of moving along the second screw (521).

18. The assembly device according to claim 17, characterized in that: The second screw drive assembly (522) comprises: A second driving unit (5221); And a synchronous belt transmission assembly, wherein the synchronous belt sleeve in the synchronous belt transmission assembly is arranged on the outer periphery of a pair of second lead screws (521), and the second driving unit (5221) can drive the pair of second lead screws (521) to rotate in the same direction via the synchronous belt transmission assembly.

19. An assembly device according to any one of claims 12 to 18, characterized in that The pressing structure (500) further comprises a dust removal mechanism (600), wherein the dust removal mechanism (600) is arranged on the pressing mechanism (510).

20. The assembly device according to claim 19, characterized in that The dust removal mechanism (600) comprises a dust removal cover (610) and an extension pipe (620), wherein the dust removal cover (610) has a cover area, and the extension pipe (620) is connected to the dust removal cover (610) and communicates with the cover area.

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