Assembling tool of battery module

Abstract

The utility model relates to the technical field of battery preparation, in particular to a battery module assembling tool which comprises a bottom supporting component, a positioning component, a limiting component and a pressure applying component, the positioning component, the limiting component and the pressure applying component are arranged on the bottom supporting component, and the bottom supporting component is used for placing a battery module composed of a plurality of battery cells; in the first preset direction, the limiting assembly and the pressure applying assembly are arranged on the two opposite sides of the battery module respectively, the limiting assembly is used for limiting the battery module, and the pressure applying assembly is used for applying pressure to the battery module; the number of the positioning assemblies is two, and the two positioning assemblies are arranged on the other two opposite sides of the battery module respectively in the second preset direction and used for positioning the two sides of the battery module respectively. According to the tool for stacking and extruding the modules of the short-knife battery cells, the two hands of workers are liberated, time and labor are saved, the production efficiency is greatly improved, manual participation is little, and the assembly precision can be improved.

Description

Technical Field

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

[0002] Most energy storage batteries currently on the market are grouped with multiple single, large-capacity square cells. Large-capacity single cells have high volumetric energy density, but they also have some disadvantages. For example, during the charge and discharge process of the battery, each single cell will gradually expand as the number of charge and discharge cycles increases. If the cell is not constrained in the thickness direction, after multiple cycles, the core will expand too thickly, resulting in longer lithium ion insertion and deinsertion paths, thereby affecting its cycle life. Appropriate preload force is helpful in reducing the loss of active lithium. Currently, in response to the expansion characteristics of single, large-capacity cells, flexible buffering materials are usually filled between cells during module production to absorb the expansion force generated by the cells. The cells are then manually positioned and preloaded with extrusion equipment. Finally, a steel hoop is applied to constrain the expansion force of the cells during charge and discharge. The above process is time-consuming and labor-intensive, with low production efficiency and poor precision. Utility Model Content

[0003] The purpose of this application is to provide an assembly tool for a battery module, which to a certain extent solves the technical problems in the prior art that manual positioning and pressure application are often used during the assembly and application of pre-tightening force of the battery module, which is time-consuming and labor-intensive, has low production efficiency, and poor precision.

[0004] The present application provides a battery module assembly tool, comprising: a bottom support member and a positioning assembly, a limiting assembly, and a pressure applying assembly provided on the bottom support member; wherein the bottom support member is used to place a battery module composed of multiple battery cells;

[0005] Along a first preset direction, the limiting assembly and the pressure applying assembly are respectively arranged on opposite sides of the battery module, the limiting assembly is used to limit the position of the battery module, and the pressure applying assembly is used to apply pressure to the battery module;

[0006] There are two positioning components, which are respectively arranged on the other two opposite sides of the battery module along the second preset direction. The two positioning components are respectively used to position the two sides of the battery module.

[0007] In the above technical solution, further, the assembly tool of the battery module also includes a pressure detection component, and the pressure detection component is arranged on the limiting component to detect the pressure applied by the pressure applying component to the battery module.

[0008] In any of the above technical solutions, further, the limiting assembly includes a first supporting member, a first moving member and a first sliding guide member; wherein, the first supporting member is arranged on the bottom supporting member;

[0009] The first movable member is arranged on a side of the first supporting member close to the battery module; the first sliding guide member is fixedly connected to the first movable member, and the first sliding guide member is slidably connected to the first supporting member.

[0010] In any of the above technical solutions, further, the first movable member is formed with a first positioning protrusion protruding toward the battery module side, and is used to be inserted into a first positioning groove of an end plate of the battery module, or

[0011] The limiting assembly also includes a first insulating protective component, which is arranged on a side of the first movable component close to the battery module and is connected to the first movable component. The first insulating protective component is formed with a first positioning protrusion protruding toward the battery module side and is used to be inserted into a first positioning groove of an end plate of the battery module.

[0012] In any of the above technical solutions, further, the limiting assembly also includes a first guide sleeve, and the first guide sleeve is arranged on the first supporting member, and the first sliding guide member is slidably connected to the first guide sleeve.

[0013] In any of the above technical solutions, further, the positioning assembly includes a second supporting member, a driving and locking member, and a second movable member; wherein the second supporting member is arranged on the bottom supporting member; and the second movable member is arranged on a side of the second supporting member close to the battery module;

[0014] The driving and locking member is provided on the second supporting member and is used to drive the second movable member to move toward the battery module side, and can be locked after being moved into position so that the second movable member remains stationary.

[0015] In any of the above technical solutions, further, the positioning assembly also includes a second sliding guide member, the second sliding guide member is fixedly connected to the second movable member, and the second sliding guide member is slidably connected to the second supporting member.

[0016] In any of the above technical solutions, further, the positioning assembly also includes an auxiliary support member, and the auxiliary support member is arranged on the second support member, and the second sliding guide member is slidably connected to the auxiliary support member.

[0017] In any of the above technical solutions, further, the positioning assembly also includes a second guide sleeve, and the second guide sleeve is arranged on the second supporting member, and the second sliding guide member is slidably connected to the second guide sleeve.

[0018] In any of the above technical solutions, further, the limiting assembly also includes a second insulating protective component, which is arranged on a side of the second movable component close to the battery module and is connected to the second movable component.

[0019] In any of the above technical solutions, further, the driving and locking component is a toggle clamp.

[0020] In any of the above technical solutions, further, the pressure applying assembly further includes a third supporting member, a third movable member, a third sliding guide member, and a rotation driving member; wherein the third supporting member is disposed on the bottom supporting member; and the third movable member is disposed on a side of the third supporting member close to the battery module;

[0021] The third sliding guide member is fixedly connected to the third movable member, and the third sliding guide member is slidingly connected to the third supporting member; the rotary drive member is rotatably connected to the third supporting member, and the rotary drive member is threadedly rotatably connected to the third movable member, and is used to drive the third movable member to move in a direction close to or away from the battery module.

[0022] In any of the above technical solutions, further, the third movable member is formed with a third positioning protrusion protruding toward the battery module side, and is used to be inserted into the third positioning groove of the other end plate of the battery module, or the pressure applying assembly also includes a third insulating protective member, the third insulating protective member is arranged on the side of the third movable member close to the battery module, and is connected to the third movable member, the third insulating protective member is formed with a third positioning protrusion protruding toward the battery module side, and is used to be inserted into the third positioning groove of the other end plate of the battery module.

[0023] In any of the above technical solutions, further, the pressure applying assembly also includes a third guide sleeve, and the third guide sleeve is arranged on the third supporting member, and the third sliding guide member is slidably connected to the third guide sleeve.

[0024] In any of the above technical solutions, further, the pressure applying assembly also includes a hand wheel, and the hand wheel is connected to one end of the rotation driving member located on the outside of the third supporting member, and the rotation driving member is driven to rotate by rotating the hand wheel, or the pressure applying assembly also includes a driving device, and the driving device is connected to one end of the rotation driving member located on the outside of the third supporting member, and the driving device is used to drive the rotation driving member to rotate.

[0025] In any of the above technical solutions, further, the assembly tool of the battery module also includes a bottom insulating support plate, and the bottom insulating support plate is arranged on the upper surface of the bottom supporting member and is located between the limiting component, the pressure applying component and the two positioning components.

[0026] In any of the above technical solutions, further, the assembly tool of the battery module also includes a handle, and the handle is provided on the bottom supporting member.

[0027] In any of the above technical solutions, further, a positioning plane parallel to the corresponding side of the battery module is formed on one side of the two positioning assemblies facing the battery module.

[0028] Compared with the prior art, the present invention has the following advantages:

[0029] The present application provides a tool for module stacking and extrusion of short-blade battery cells, which frees workers' hands, saves time and effort, greatly improves production efficiency, and requires less manual intervention, which helps to improve assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0031] Figure 1 A schematic diagram of the structure of the assembly tool for the battery module provided in an embodiment of the present application;

[0032] Figure 2 Another structural schematic diagram of the assembly tool for the battery module provided in an embodiment of the present application;

[0033] Figure 3 Another structural schematic diagram of the assembly tool for the battery module provided in an embodiment of the present application;

[0034] Figure 4 This is another structural schematic diagram of the assembly tooling for the battery module provided in an embodiment of the present application.

[0035] Reference numerals:

[0036] 1- bottom support member, 2- limiting assembly, 21- first support member, 22- first moving member, 23- first sliding guide member, 24- first insulating protective member, 25- first guide sleeve, 3- positioning assembly, 31- second support member, 32- drive locking member, 33- second moving member, 34- second sliding guide member, 35- auxiliary support member, 36- second insulating protective member, 37- second guide sleeve, 4- pressure applying assembly, 41- third support member, 42- third moving member, 43- third sliding guide member, 44- rotational drive member, 45- third insulating protective member, 46- third guide sleeve, 47- hand wheel, 5- pressure detection member, 6- bottom insulating support plate, 7- handle. DETAILED DESCRIPTION

[0037] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0038] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0039] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0040] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0042] Refer to the following Figures 1 to 4 Describe the assembly tooling of the battery module according to some embodiments of the present application.

[0043] See also Figures 1 to 4 As shown, an embodiment of the present application provides an assembly tool for a battery module, comprising: a bottom support member 1 and a positioning assembly 3, a limiting assembly 2, and a pressure applying assembly 4 provided on the bottom support member 1; wherein the bottom support member 1 is used to place a battery module composed of multiple battery cells. It should be noted that: in addition to the battery cells, the battery module also includes a PC insulating sheet, an epoxy board (insulating board), and foam, etc., which are all conventional settings and will not be described in detail here;

[0044] Along the first preset direction a, the limiting assembly 2 and the pressure applying assembly 4 are respectively arranged on opposite sides of the battery module, the limiting assembly 2 is used to limit the position of the battery module, and the pressure applying assembly 4 is used to apply pressure to the battery module;

[0045] There are two positioning components 3 , which are respectively arranged on the other two opposite sides of the battery module along the second preset direction b. The two positioning components 3 are respectively used to position the two sides of the battery module.

[0046] According to the structure described above, the use process of the assembly tooling of the battery module provided in this application is as follows: the battery cells and other components are placed in the space enclosed by the limiting component 2, the two positioning components 3 and the pressure applying component 4 on the bottom plate according to the stacking requirements, and then the limiting component 2 and the two positioning components 3 are used to position the battery module, and the pressure applying component 4 is used to apply pressure to the battery module, thereby completing the operation of applying pre-tightening force to the battery module. Of course, it is not limited to this, and the operation process can be adjusted according to actual needs.

[0047] It can be seen that the present application provides a tool for module stacking and extrusion of short-blade battery cells, which frees workers' hands, saves time and effort, greatly improves production efficiency, and requires less manual participation, which helps to improve assembly accuracy.

[0048] In this embodiment, preferably, Figure 1 and Figure 3As shown, the assembly tool of the battery module further includes a pressure detection component 5, and the pressure detection component 5 is arranged on the limiting component 2, for detecting the pressure applied by the pressure applying component 4 to the battery module.

[0049] According to the structure described above, when the pressure applying assembly 4 applies pressure to the battery module, the pressure detecting component 5 can be used to detect the pressure value in real time, thereby ensuring the accuracy and controllability of the preload force.

[0050] In this embodiment, preferably, Figures 2 to 4 As shown, the limiting assembly 2 includes a first supporting member 21, a first moving member 22 and a first sliding guide member 23; wherein the first supporting member 21 is provided on the bottom supporting member 1;

[0051] The first movable member 22 is disposed on a side of the first supporting member 21 close to the battery module; the first sliding guide member 23 is fixedly connected to the first movable member 22 , and the first sliding guide member 23 is slidably connected to the first supporting member 21 .

[0052] According to the structure described above, when the pressure applying component 4 applies pressure to the battery module, the battery module will push the first movable member 22 to move stably, and the first movable member 22 forms a large area of ​​uniform contact with the pressure detection component 5, so that the pressure detection component 5 can accurately detect the pressure in real time, thereby ensuring the accuracy and controllability of the preload force application.

[0053] Furthermore, preferably, the first supporting member 21 is a U-shaped plate, and the opening of the U-shaped plate faces the side away from the battery module, which has a good supporting effect. Of course, the present invention is not limited thereto.

[0054] Furthermore, preferably, the first movable member 22 is a rectangular flat plate. Of course, the present invention is not limited thereto, and the first movable member 22 may also be a flat plate of other shapes.

[0055] Furthermore, preferably, the pressure detection component 5 is a pressure sensor, but is not limited thereto and may also be a pressure detection device such as a pressure gauge.

[0056] In this embodiment, preferably, Figures 1 to 3 As shown, the limiting assembly 2 further includes a first insulating protective member 24 . The first insulating protective member 24 is disposed on a side of the first movable member 22 close to the battery module and is connected to the first movable member 22 .

[0057] Furthermore, preferably, the first insulating protective member 24 is formed with a first positioning protrusion protruding toward the battery module side, and is used to be inserted into a first positioning groove of an end plate of the battery module, namely the first end plate.

[0058] According to the structure described above, the first insulating protective component 24 plays an insulating and protective role for the battery module, so that the surface of the battery cell will not be damaged, and when assembled with the battery module, the first positioning groove of the front end plate of the battery module, that is, the aluminum end plate, corresponds to the first positioning protrusion on the first insulating component, and the first positioning protrusion is plugged into the first positioning groove to achieve precise positioning.

[0059] Furthermore, preferably, the material of the first insulating protective member 24 may be bakelite, and preferably, the main body of the first insulating protective member 24, that is, the portion excluding the first positioning protrusion, is a rectangular flat plate structure. Of course, it is not limited thereto.

[0060] Further, preferably, the first positioning protrusion can be a square platform, which is compatible with the first positioning groove. Of course, it is not limited to this. The first positioning protrusion is designed according to the structure of the first positioning groove on the first end plate of the battery module.

[0061] It should be noted that: it is also possible not to set this first insulating protective component 24, but to set the entire first movable component 22 or only the part used to place the battery module to be made of insulating material. In this case, it is necessary to set a first positioning protrusion on the first movable component 22 to directly cooperate with the corresponding end plate of the battery module. The specific selection is based on actual needs.

[0062] In this embodiment, preferably, Figures 2 to 4 As shown, the limiting assembly 2 further includes a first guide sleeve 25 , and the first guide sleeve 25 is disposed on the first supporting member 21 , and the first sliding guide member 23 is slidably connected to the first guide sleeve 25 .

[0063] According to the structure described above, it can be seen that the first sliding guide member 23 cooperates with the first guide sleeve 25 to play the role of sliding guide.

[0064] Further, preferably, the first sliding guide member 23 is a guide rod, and is adapted to the first guide sleeve 25 .

[0065] Furthermore, preferably, the number of the first sliding guide members 23 is multiple and evenly distributed, and the number of the first guide sleeves 25 is also multiple and corresponds one-to-one to the multiple first sliding guide members 23 .

[0066] In this embodiment, preferably, Figures 2 to 4 As shown, the positioning assembly 3 includes a second support member 31, a driving and locking member 32, and a second moving member 33; wherein the second support member 31 is arranged on the bottom support member 1; the second moving member 33 is arranged on a side of the second support member 31 close to the battery module;

[0067] The driving and locking member 32 is provided on the second supporting member 31 and is used to drive the second movable member 33 to move toward the battery module side, and can be locked after being moved into position so that the second movable member 33 remains stationary.

[0068] According to the structure described above, the driving locking member 32 can drive the second movable member 33 to move toward the battery module, and when it moves into position, that is, when it is close to the battery module, the driving locking member 32 can be locked, thereby ensuring that the second movable member 33 does not move, thereby arranging the battery cells neatly and realizing the positioning of the battery cells. According to the above-mentioned operation process, the positioning components 3 on both sides of the battery module can be used to adjust and position the flatness of both sides of the battery module.

[0069] Further, preferably, the second supporting member 31 includes an inverted U-shaped main frame and an internal vertical supporting beam, but is not limited thereto.

[0070] In this embodiment, preferably, Figures 2 to 4 As shown, the positioning assembly 3 further includes a second sliding guide member 34 , which is fixedly connected to the second movable member 33 and slidably connected to the second supporting member 31 .

[0071] According to the structure described above, the second movable member 33 drives the second sliding guide member 34 to move synchronously relative to the second supporting member 31 , and the second sliding guide member 34 plays a role of movement guide to improve accuracy.

[0072] In this embodiment, preferably, Figures 2 to 4 As shown, the positioning assembly 3 further includes an auxiliary supporting member 35 , and the auxiliary supporting member 35 is disposed on the second supporting member 31 , and the second sliding guide member 34 is slidably connected to the auxiliary supporting member 35 .

[0073] According to the structure described above, the auxiliary support member 35 mainly plays a role of transition, thereby facilitating the installation of the second sliding guide member 34 onto the second support member 31 .

[0074] Furthermore, preferably, the auxiliary support member 35 is a rectangular flat plate, but is not limited thereto.

[0075] Furthermore, preferably, the auxiliary support member 35 and the second support member 31 are connected by welding or bolts, or the auxiliary support member 35 and the second support member 31 are an integrated structure.

[0076] In this embodiment, preferably, Figures 3 and 4As shown, the positioning assembly 3 further includes a second insulating protective member 36, which is disposed on a side of the second movable member 33 close to the battery module and connected to the second movable member 33;

[0077] According to the structure described above, the second insulating protective member 36 provides insulation protection for the battery module, so that the surface of the battery cell will not be damaged.

[0078] Furthermore, preferably, the material of the second insulating protective member 36 may be bakelite, but is not limited thereto.

[0079] It should be noted that: the second insulating protective member 36 may not be provided, and the entire second movable member 33 or only the portion for placing the battery module may be made of insulating material, depending on actual needs.

[0080] In this embodiment, preferably, Figures 3 and 4 As shown, the positioning assembly 3 further includes a second guide sleeve 37 , and the second guide sleeve 37 is disposed on the second supporting member 31 , and the second sliding guide member 34 is slidably connected to the second guide sleeve 37 .

[0081] According to the structure described above, the second sliding guide member 34 cooperates with the second guide sleeve 37 to play the role of sliding guide.

[0082] Further, preferably, the second sliding guide member 34 is a guide rod, and is adapted to the second guide sleeve 37 .

[0083] Furthermore, preferably, the number of the second sliding guide members 34 is multiple and evenly distributed, and the number of the second guide sleeves 37 is also multiple and corresponds one-to-one to the multiple second sliding guide members 34 .

[0084] In this embodiment, preferably, Figures 2 to 4 As shown, the drive locking member 32 is a toggle clamp, which is convenient to use, saves time and effort, and helps improve production efficiency. Of course, the drive locking member 32 is not limited to this, and it can also be a linear motor or a screw drive structure, etc., which can be selected according to actual needs.

[0085] In this embodiment, preferably, Figures 2 to 4 As shown, the pressure applying assembly 4 further includes a third supporting member 41, a third moving member 42, a third sliding guide member 43 and a rotation driving member 44; wherein the third supporting member 41 is arranged on the bottom supporting member 1; the third moving member 42 is arranged on a side of the third supporting member 41 close to the battery module;

[0086] The third sliding guide member 43 is fixedly connected to the third movable member 42, and the third sliding guide member 43 is slidingly connected to the third support member 41; the rotational drive member 44 is rotationally connected to the third support member 41, and the rotational drive member 44 is threadedly rotationally connected to the third movable member 42, and is used to drive the third movable member 42 to move in a direction close to or away from the battery module.

[0087] According to the structure described above, the rotating driving member 44 can be rotated. Due to the limiting action of the third sliding guide member 43, the third movable member 42 can only move in the horizontal direction, and can then move toward or away from the battery module. Especially when moving toward the side of the battery module, it can continuously apply pressure to the battery module, that is, apply a pre-tightening force.

[0088] In this embodiment, preferably, Figures 2 to 4 As shown, the pressure applying assembly 4 further includes a third insulating protective member 45, which is disposed on a side of the third movable member 42 close to the battery module and is connected to the third movable member 42;

[0089] Further, preferably, the third insulating protective member 45 is formed with a third positioning protrusion protruding toward the battery module side, and is used to be inserted into a third positioning groove of another end plate of the battery module.

[0090] According to the structure described above, the third insulating protective component 45 plays an insulating and protective role for the battery module, so that the surface of the battery cell will not be damaged, and when assembled with the battery module, the first positioning groove of the front end plate of the battery module, that is, the aluminum end plate, corresponds to the first positioning protrusion on the first insulating component and is assembled together to achieve positioning, and then the PC insulating sheet, epoxy board (insulating board), and short knife battery cell are placed in sequence until multiple battery cells, such as 16 battery cells, are placed, and then the epoxy board (insulating board) and PC insulating sheet are placed in sequence and arranged in order, and then the third positioning groove of the rear end plate of the battery module, that is, the aluminum end plate, corresponds to the third positioning protrusion on the first insulating component and is assembled together to achieve positioning.

[0091] Furthermore, preferably, the material of the third insulating protective member 45 may be bakelite, and preferably, the main body of the third insulating protective member 45, that is, the part excluding the third positioning protrusion, is a rectangular flat plate structure. Of course, it is not limited thereto.

[0092] Further, preferably, the third positioning protrusion can be a square platform, which is compatible with the third positioning groove. Of course, it is not limited to this. The third positioning protrusion is designed according to the structure of the third positioning groove on the second end plate of the battery module.

[0093] It should be noted that: it is also possible not to set this third insulating protective component 45, but to set the entire third movable component 42 or only the part used to place the battery module to be made of insulating material. In this case, it is necessary to set a third positioning protrusion on the third movable component 42 to directly cooperate with the corresponding end plate of the battery module. The specific selection should be based on actual needs.

[0094] In this embodiment, preferably, Figures 2 to 4 As shown, the pressure applying assembly 4 further includes a third guide sleeve 46 , and the third guide sleeve 46 is disposed on the third supporting member 41 , and the third sliding guide member 43 is slidably connected to the third guide sleeve 46 .

[0095] According to the structure described above, the third sliding guide member 43 cooperates with the third guide sleeve 46 to play the role of sliding guide.

[0096] Further, preferably, the third sliding guide member 43 is a guide rod, and is adapted to the third guide sleeve 46 .

[0097] Furthermore, preferably, the number of the third sliding guide members 43 is multiple and evenly distributed, and the number of the third guide sleeves 46 is also multiple and corresponds one-to-one to the multiple third sliding guide members 43 .

[0098] In this embodiment, preferably, Figure 3 and Figure 4 As shown, the pressure applying assembly 4 further includes a hand wheel 47 , and the hand wheel 47 is connected to one end of the rotation driving member 44 located outside the third supporting member 41 , and the rotation driving member 44 is driven to rotate by rotating the hand wheel 47 .

[0099] According to the structure described above, after the battery cells are stacked, it is convenient for the operator to hold and apply appropriate squeezing force, the operation is simple, and the control accuracy is high.

[0100] Of course, this is not limited to the above. The hand wheel 47 can also be replaced by a driving device such as a motor, and the driving device is connected to one end of the rotating driving member 44 located on the outside of the third supporting member 41. The driving device is used to drive the rotating driving member 44 to rotate, which is suitable for use in large-scale production.

[0101] It should be noted that: the hand wheel 47 or the driving device may not be provided, and the rotation driving member 44 may be directly rotated by hand.

[0102] In this embodiment, preferably, Figure 1 As shown, the assembly tooling of the battery module further includes a bottom insulating support plate 6 , and the bottom insulating support plate 6 is arranged on the upper surface of the bottom supporting member 1 and is located between the limiting component 2 , the pressure applying component 4 and the two positioning components 3 .

[0103] According to the structure described above, the battery module can be placed on the bottom insulating support plate 6 to play the role of insulation protection.

[0104] Furthermore, preferably, the third insulating protective member 45 is a rectangular insulating plate, and its material can be bakelite, but of course, it is not limited thereto.

[0105] It should be noted that: the bottom insulating support plate 6 may not be provided, but the entire bottom supporting member 1 or only the portion used to place the battery module may be made of insulating material, depending on actual needs.

[0106] In this embodiment, preferably, Figures 1 to 4 As shown, the two positioning components 3 have positioning planes parallel to the corresponding sides of the battery module on their sides facing the battery module, the limiting component 2 has a limiting plane parallel to the corresponding sides of the battery module on its side facing the battery module, and the pressure applying component 4 has a force applying plane parallel to the corresponding sides of the battery module on its side facing the battery module.

[0107] Furthermore, preferably, the second movable member 33 and the second insulating protective member 36 are both rectangular flat plates and are disposed parallel to the sides of the corresponding battery modules. The second insulating protective member 36 has the aforementioned positioning plane formed on the side closest to the battery module. Of course, the second movable member 33 and the second insulating protective member 36 are not limited to rectangular shapes and can also be flat plates of other shapes.

[0108] In this embodiment, preferably, Figure 1 As shown, the assembly tool of the battery module further includes a handle 7, and the handle 7 is provided on the bottom support member 1 to facilitate the transportation and positioning of the tool.

[0109] Furthermore, preferably, the handle 7 is provided on the upper surface of the bottom support member 1 . Of course, it is not limited thereto, and the handle 7 may also be provided on the side of the bottom support member 1 , etc.

[0110] Further, preferably, the number of the handles 7 is four, and when the bottom support member 1 is a rectangular plate, the four handles 7 are evenly arranged at the four corners of the bottom support plate. Of course, it is not limited thereto.

[0111] In summary, the detailed usage process of the battery module assembly tool provided in this application is as follows:

[0112] (1) Operate on the hand-crank side of the tool, i.e., the hand-crank wheel 47 side, specifically, push the third movable member 42 and the third insulating protective member 45 to the right;

[0113] (2) Operate on the force-bearing side of the tooling, specifically, manually force the first movable member 22 to move rightward to return the pressure sensor value to zero;

[0114] (3) The second positioning groove of the front end plate of the battery module, i.e., the aluminum end plate, is aligned with the second positioning protrusion on the second insulating member and assembled together to achieve positioning. Then, the PC insulating sheet, epoxy plate (insulating plate), and battery cells are sequentially placed until multiple battery cells, such as 16 battery cells, are placed, and foam is placed between adjacent battery cells. Then, the epoxy plate (insulating plate) and PC insulating sheet are sequentially placed and arranged in order. Then, the third positioning groove of the rear end plate of the battery module, i.e., the aluminum end plate, is aligned with the third positioning groove on the first insulating member and assembled together to achieve positioning. It should be noted that the structure of the battery module is not limited to the above and can also be designed according to actual needs.

[0115] (4) Push the elbow clamps on both sides to arrange the cells neatly and fix the elbow clamps to prevent the cells from shifting due to squeezing;

[0116] (5) Shake the hand crank 47 to gradually apply pressure until the pressure detection member 5, such as a pressure sensor, reaches a set value, and then stop shaking;

[0117] (6) Loosen the toggle clamps on both sides, so that the toggle clamps drive the second movable member 33 and the second insulating protective member 36 thereon away from the battery module;

[0118] (7) Insert the steel hoop through the gap between the battery module and the bottom insulating support plate 6;

[0119] (8) Unloading the hand crank 47;

[0120] (9) Lift the battery module out using a lifting tool to complete the extrusion and steel stripping of the battery module. It should be noted that the above steps are not limited to the above steps and can be adjusted according to actual conditions.

[0121] In combination with the above process, it can be seen that the present application provides a tooling for module stacking and extrusion of short-blade battery cells, which solves the problems of uneven battery cell stacking plane, inaccurate preload force and battery cell surface damage in the prior art. The tooling not only improves the accuracy and efficiency of battery cell stacking, but also effectively extends the service life of the battery cell module. In combination with a servo motor, it is suitable for use in large-scale production.

[0122] It should be noted that the first preset direction a can be the X direction in a horizontal plane, and preferably, the first preset direction a is the arrangement direction of the multiple battery cells. The second preset direction b can be the Y direction in the horizontal plane, and preferably, the second preset direction b is perpendicular to the first preset direction a and is the same as the length direction of the battery cell, such as a blade battery cell. Of course, this is not limited to this, and the first preset direction a and the second preset direction b can be selected according to actual needs.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application 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 make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery module assembly tool, characterized in that: include: A bottom support member and a positioning assembly, a limiting assembly, and a pressure applying assembly provided on the bottom support member; wherein the bottom support member is used to place a battery module consisting of a plurality of battery cells; Along a first preset direction, the limiting assembly and the pressure applying assembly are respectively arranged on opposite sides of the battery module, the limiting assembly is used to limit the position of the battery module, and the pressure applying assembly is used to apply pressure to the battery module; There are two positioning components, which are respectively arranged on the other two opposite sides of the battery module along the second preset direction. The two positioning components are respectively used to position the two sides of the battery module.

2. The assembly tool for the battery module according to claim 1, characterized in that: The assembly tool of the battery module further includes a pressure detection component, and the pressure detection component is provided on the limiting assembly for detecting the pressure applied by the pressure applying assembly to the battery module.

3. The assembly tool for the battery module according to claim 2, characterized in that: The limiting assembly includes a first supporting member, a first moving member and a first sliding guide member; wherein the first supporting member is arranged on the bottom supporting member; The first movable member is arranged on a side of the first supporting member close to the battery module; the first sliding guide member is fixedly connected to the first movable member, and the first sliding guide member is slidably connected to the first supporting member.

4. The assembly tool for the battery module according to claim 3, characterized in that: The first moving member is formed with a first positioning protrusion protruding toward the battery module side and is used to be inserted into a first positioning groove of an end plate of the battery module, or The limiting assembly further includes a first insulating protective member, which is arranged on a side of the first movable member close to the battery module and connected to the first movable member, and the first insulating protective member is formed with a first positioning protrusion protruding toward the battery module side and is used to be inserted into a first positioning groove of an end plate of the battery module; and / or The limiting assembly further includes a first guide sleeve, and the first guide sleeve is disposed on the first supporting member, and the first sliding guide member is slidably connected to the first guide sleeve.

5. The assembly tool for the battery module according to claim 1, characterized in that: The positioning assembly includes a second supporting member, a driving and locking member, and a second movable member; wherein the second supporting member is arranged on the bottom supporting member; the second movable member is arranged on a side of the second supporting member close to the battery module; The driving and locking member is provided on the second supporting member and is used to drive the second movable member to move toward the battery module side, and can be locked after being moved into position so that the second movable member remains stationary.

6. The assembly tool for the battery module according to claim 5, characterized in that: The positioning assembly further includes a second sliding guide member, the second sliding guide member is fixedly connected to the second movable member, and the second sliding guide member is slidably connected to the second supporting member.

7. The assembly tool for the battery module according to claim 6, characterized in that: The positioning assembly further comprises an auxiliary support member, and the auxiliary support member is provided on the second support member, and the second sliding guide member is slidably connected to the auxiliary support member; and / or The positioning assembly further includes a second guide sleeve, and the second guide sleeve is disposed on the second supporting member, and the second sliding guide member is slidably connected to the second guide sleeve.

8. The assembly tool for the battery module according to claim 5, characterized in that: The limiting assembly further includes a second insulating protective member, which is arranged on a side of the second movable member close to the battery module and connected to the second movable member; and / or The drive locking member is a toggle clamp.

9. The assembly tool for the battery module according to claim 1, characterized in that: The pressure applying assembly further includes a third supporting member, a third movable member, a third sliding guide member, and a rotation driving member; wherein the third supporting member is disposed on the bottom supporting member; the third movable member is disposed on a side of the third supporting member close to the battery module; The third sliding guide member is fixedly connected to the third movable member, and the third sliding guide member is slidingly connected to the third supporting member; the rotary drive member is rotatably connected to the third supporting member, and the rotary drive member is threadedly rotatably connected to the third movable member, and is used to drive the third movable member to move in a direction close to or away from the battery module.

10. The assembly tool for the battery module according to claim 9, characterized in that: The third movable member is formed with a third positioning protrusion protruding toward the battery module side and is used to be inserted into the third positioning groove of the other end plate of the battery module, or the pressure applying assembly further includes a third insulating protective member, the third insulating protective member is arranged on a side of the third movable member close to the battery module and is connected to the third movable member, the third insulating protective member is formed with a third positioning protrusion protruding toward the battery module side and is used to be inserted into the third positioning groove of the other end plate of the battery module; and / or The pressure applying assembly further comprises a third guide sleeve, and the third guide sleeve is disposed on the third supporting member, and the third sliding guide member is slidably connected to the third guide sleeve; and / or The pressure applying assembly further includes a hand-cranked wheel, and the hand-cranked wheel is connected to one end of the rotation driving member located on the outside of the third supporting member, and the rotation driving member is driven to rotate by rotating the hand-cranked wheel, or the pressure applying assembly further includes a driving device, and the driving device is connected to one end of the rotation driving member located on the outside of the third supporting member, and the driving device is used to drive the rotation driving member to rotate.

11. The assembly tool for the battery module according to any one of claims 1 to 10, characterized in that: The assembly tool of the battery module further includes a bottom insulating support plate, and the bottom insulating support plate is arranged on the upper surface of the bottom support member and is located between the limiting component, the pressure applying component and the two positioning components; and / or The assembly tool of the battery module further includes a handle, and the handle is provided on the bottom support member; and / or A positioning plane parallel to the corresponding side of the battery module is formed on each side of the two positioning assemblies facing the battery module; and / or The second preset direction is perpendicular to the first preset direction; and / or The first preset direction is the arrangement direction of the plurality of battery cells.

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