Battery module stacking and extruding device

Abstract

The utility model discloses a battery module stacking and extruding device which comprises a bottom plate, a fixed part and a movable extruding part, the fixed part is installed on the upper side wall of the bottom plate, the movable extruding part is located on one side of the fixed part in the first direction, and the movable extruding part can move in the first direction so as to be close to or away from the fixed part; the side positioning part is installed on the upper side wall of the bottom plate and located on one side of the second direction of the fixing part, the side wall, facing the fixing part, of the side positioning part forms a positioning reference wall, the positioning reference wall extends in the first direction, and at least part of the positioning reference wall is located between the fixing part and the movable extrusion part; the first direction is perpendicular to the second direction. The side positioning parts are additionally arranged, and the positioning reference walls of the side positioning parts are used as references during stacking, so that the consistency of battery modules during stacking is ensured, the welding penetration risk of the modules is reduced, subsequent shaping is not needed, the working process is simplified, and the stacking and extruding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery module stacking and extrusion device. Background Art

[0002] The battery module is a combination of multiple battery cells connected in series and parallel. The production process includes cell gluing, module stacking, extrusion, installation of side panels or steel belts, etc. The connecting piece is a key process in module production. The quality of stacking will directly affect the quality of subsequent bus welding.

[0003] In the battery module stacking and extrusion device of the prior art, module stacking and extrusion are carried out in a separate manner. The battery cells are first stacked and placed on a tray, and then the tray is pushed to the extrusion station. The side push cylinder pushes the pressing plate to shape the module, and the battery cells are extruded along the battery cell stacking direction. After extrusion is in place, the side panels are installed.

[0004] It can be seen that the prior art performs module shaping after stacking, and there is a possibility of incomplete shaping, especially for battery modules that are bonded with pressure-sensitive adhesive. Since the pressure-sensitive adhesive has no curing time, the battery cells cannot be further shaped after being stacked together, resulting in poor consistency of the battery modules after stacking, and there may be a risk of module welding through during the production process. Utility Model Content

[0005] The utility model aims to provide a battery module stacking and extrusion device, which has good consistency of battery modules, avoids the risk of module welding through during the production process, simplifies the stacking and extrusion process, and improves the stacking and extrusion efficiency.

[0006] In order to solve the above technical problems, the utility model provides a battery module stacking and extrusion device, comprising a bottom plate, a fixed part and a movable extrusion part, wherein the fixed part is installed on the upper side wall of the bottom plate, the movable extrusion part is located on one side of the fixed part in a first direction, and the movable extrusion part can move along the first direction to approach or move away from the fixed part;

[0007] It also includes a side positioning portion, which is installed on the upper side wall of the base plate, and the side positioning portion is located on one side of the second direction of the fixing portion. The side positioning portion faces the side wall of the fixing portion to form a positioning reference wall, and the positioning reference wall extends along the first direction. The positioning reference wall is at least partially located between the fixing portion and the movable extrusion portion, and the first direction and the second direction are perpendicular to each other.

[0008] The battery module stacking and extrusion device of the utility model is provided with a side positioning part on one side of the fixed part. When working, the movable extrusion part can be controlled to move in a direction away from the fixed part first, so that there is sufficient working space between the movable extrusion part and the fixed part, so as to carry out the subsequent stacking and extrusion of the battery modules; then, with the positioning reference wall of the side positioning part as the stacking reference and the fixed part as the limit, the first end plate of the battery module, each battery cell and the second end plate are stacked together in the first direction in sequence. Since the positioning reference wall of the side positioning part is used as the reference during stacking, the battery modules can be kept consistent during stacking without the need for further shaping; thereafter, the movable extrusion part can be controlled to move in a direction close to the fixed part, and the battery module is extruded until the battery module is extruded to a specified length.

[0009] It can be seen that the battery module stacking and extrusion device of the utility model can ensure the consistency of the battery module when stacking, reducing the risk of module welding penetration during the production process; and no subsequent shaping work is required after stacking, simplifying the work process and improving the stacking and extrusion efficiency of the battery module. At the same time, since the battery module stacking and extrusion device of the utility model can ensure the consistency of the battery module when stacking, the battery module can be stacked using a structural adhesive process or a pressure-sensitive adhesive process.

[0010] Optionally, the side positioning portion is detachably mounted on the upper side wall of the bottom plate, and the mounting position of the side positioning portion is adjustable along the second direction.

[0011] Optionally, the side positioning portion includes a fixed block and a movable positioning block, the fixed block is mounted on the upper side wall of the base plate, the movable positioning block is supported by the fixed block, and the movable positioning block faces the side wall of the fixed portion to form the positioning reference wall.

[0012] Optionally, the fixed block includes a first horizontal plate portion and a first vertical plate portion connected at a right angle, the first horizontal plate portion is mounted on the upper side wall of the bottom plate, and the movable positioning block includes a second horizontal plate portion and a second vertical plate portion connected at a right angle,

[0013] In the installed state, the first vertical plate portion and the second vertical plate portion are in contact with each other, the second vertical plate portion is closer to the fixed portion than the first vertical plate portion, the second horizontal plate portion is supported on the upper side wall of the first vertical plate portion, and the side wall of the second vertical plate portion facing the fixed portion forms the positioning reference wall.

[0014] Optionally, a cushion block is further included, which is detachably mounted on the upper side wall of the bottom plate, the cushion block is located between the fixed portion and the movable extrusion portion, and the cushion block is arranged along the first direction.

[0015] Optionally, the end wall of the fixing portion facing the movable extrusion portion has a positioning portion, and the positioning portion is used to be inserted and matched with a corresponding end plate of the battery module to vertically limit the battery module.

[0016] Optionally, the movable extrusion portion includes an extrusion portion and a driving unit, the driving unit is located on a side of the extrusion portion facing away from the fixed portion, the driving unit is connected to the extrusion portion, and the driving unit is used to drive the extrusion portion to move along the first direction.

[0017] Optionally, the driving unit includes a threaded sleeve, an internal screw and a force-applying mechanism, the threaded sleeve and the base plate are relatively fixed, the threaded sleeve extends along the first direction, the internal screw is inserted into the threaded sleeve, the internal screw and the threaded sleeve are threadedly connected, one end of the internal screw is connected to the extrusion part, and the force-applying mechanism is connected to the other end of the internal screw, and the force-applying mechanism is used to drive the internal screw to rotate.

[0018] Optionally, the movable extrusion portion further includes an integrated base, the extrusion portion and the driving unit are arranged on the integrated base, the integrated base is installed on the upper side wall of the base plate, and the installation position of the integrated base is adjustable along the first direction.

[0019] Optionally, a pressure sensor is further included, and the pressure sensor is arranged on at least one of the opposite end walls of the fixed part and the movable pressing part. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a specific embodiment of the battery module stacking and extrusion device provided by the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from a second angle;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from a third angle;

[0023] Figure 4 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from a fourth angle;

[0024] Figure 5 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from the fifth angle;

[0025] in, Figure 1-Figure 5 The reference numerals in the figures are described as follows:

[0026] 1- Bottom plate;

[0027] 2-fixing part; 21-connecting seat; 211-horizontal connecting part; 212-vertical connecting part; 213-reinforcement plate; 22-abutment block;

[0028] 3-movable extrusion part; 31-extrusion part; 32-threaded sleeve; 33-inner screw; 34-force applying mechanism; 35-fixed seat; 36-integrated base; 37-guide rod;

[0029] 4-side positioning portion; 41-fixed block; 411-first vertical plate portion; 42-movable positioning block; 421-second horizontal plate portion; 422-second vertical plate portion;

[0030] 5- Pad;

[0031] 01-battery module; 011-first end plate; 012-battery cell; 013-second end plate; 014-side plate; DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The “plurality” mentioned herein generally means more than two; and when “plurality” is used to indicate the number of certain components, it does not indicate the relationship between the quantities of these components.

[0034] Please refer to Figure 1-Figure 5 , Figure 1 A schematic structural diagram of a specific embodiment of the battery module stacking and extrusion device provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from a second angle; Figure 3 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from a third angle; Figure 4 for Figure 1 A schematic diagram of the structure of the battery module stacking and extrusion device from a fourth angle; Figure 5 for Figure 1 Schematic diagram of the structure of the battery module stacking extrusion device from the fifth angle.

[0035] The utility model provides a battery module stacking and extruding device, comprising a bottom plate 1, a fixed portion 2 and a movable extruding portion 3, wherein the fixed portion 2 is mounted on the upper side wall of the bottom plate 1, and the movable extruding portion 3 is located on one side of the fixed portion 2 in a first direction, and the movable extruding portion 3 can move along the first direction to approach or move away from the fixed portion 2;

[0036] It also includes a side positioning portion 4, which is installed on the upper side wall of the base plate 1, and the side positioning portion 4 is located on one side of the second direction of the fixing portion 2. The side positioning portion 4 faces the side wall of the fixing portion 2 to form a positioning reference wall, and the positioning reference wall extends along the first direction. The positioning reference wall is at least partially located between the fixing portion 2 and the movable extrusion portion 3, and the first direction and the second direction are perpendicular to each other.

[0037] The battery module stacking and extrusion device of the utility model is provided with a side positioning portion 4 on one side of the fixed portion 2. When working, the movable extrusion portion 3 can be controlled to move in a direction away from the fixed portion 2 first, so that there is sufficient working space between the movable extrusion portion 3 and the fixed portion 2, so as to carry out the subsequent stacking and extrusion of the battery module 01; then, with the positioning reference wall of the side positioning portion 4 as the stacking reference and the fixed portion 2 as the limit, the first end plate 011, each battery cell 012 and the second end plate 013 of the battery module 01 are stacked together in a first direction in sequence. Since the positioning reference wall of the side positioning portion 4 is used as the reference during stacking, the battery module 01 can maintain consistency during stacking without the need for further shaping; thereafter, the movable extrusion portion 3 can be controlled to move in a direction close to the fixed portion 2, and the battery module 01 is extruded until the battery module 01 is extruded to a specified length.

[0038] It can be seen that the battery module stacking and extrusion device of the utility model can ensure the consistency of the battery module 01 during stacking, reducing the risk of module welding penetration during the production process; and no subsequent shaping work is required after stacking, which simplifies the work process and improves the stacking and extrusion efficiency of the battery module 01. At the same time, since the battery module stacking and extrusion device of the utility model can ensure the consistency of the battery module 01 during stacking, the battery module can be stacked using a structural adhesive process or a pressure-sensitive adhesive process. The structural adhesive process and the pressure-sensitive adhesive process are prior arts well known to those skilled in the art and will not be elaborated here.

[0039] Depend on Figure 3 It can be seen that in this embodiment, the side positioning portion 4 is entirely located between the fixed portion 2 and the movable extrusion portion 3, that is, the positioning reference wall is entirely located between the fixed portion 2 and the movable extrusion portion 3. At this time, the side positioning portion 4 should be arranged so as to ensure that when the first end plate 011 of the battery module 01 and the fixed portion 2 are fitted, the first end plate 011 can simultaneously abut against the side positioning portion 4. In practice, the side positioning portion 4 can be partially located between the fixed portion 2 and the movable extrusion portion 3, that is, the fixed portion 2 falls inside the side positioning portion 4 in the first direction. At this time, when the first end plate 011 of the battery module 01 and the fixed portion 2 are fitted, the first end plate 011 can necessarily simultaneously abut against the side positioning portion 4.

[0040] like Figure 1As shown, in this embodiment, the fixing portion 2 includes a connecting seat 21 and an abutment block 22, the connecting seat 21 includes a horizontal connecting portion 211 and a vertical connecting portion 212 connected at right angles, the horizontal connecting portion 211 is connected to the bottom plate 1, the abutment block 22 is connected to the side wall of the vertical connecting portion 212 facing the movable extrusion portion 3, the abutment block 22 is used to abut against the first end plate 011 of the battery module 01, and plays a role in limiting the battery module 01 in the first direction, and there is no restriction on the connection method of the abutment block 22 and the vertical connecting portion 212, such as the two can be welded and fixed.

[0041] Furthermore, the connecting seat 21 also includes two reinforcing plates 213, which are connected between the horizontal connecting part 211 and the vertical connecting part 212, so as to improve the structural strength of the connecting seat 21, ensure the stability of the installation position of the abutment block 22, and further ensure that the abutment block 22 can reliably play a limiting role on the battery module 01.

[0042] Of course, in practice, there is no limit to the number of reinforcing plates 213, for example, there may be at least one reinforcing plate 213. The reinforcing plate 213 and the horizontal connecting portion 211 and the vertical connecting portion 212 may be fixed by welding.

[0043] As mentioned above, the fixing portion 2 is mounted on the upper side wall of the bottom plate 1. Specifically, in this embodiment, Figure 1 As shown, the fixing part 2 (i.e., the horizontal connecting part 211) is fixed to the upper side wall of the bottom plate 1 by connecting members, such as bolts. In practice, the upper side wall of the bottom plate 1 can be provided with a fixing groove with an upper end opening, and the base of the fixing part 2 (i.e., the horizontal connecting part 211) is installed inside the fixing groove and has an interference fit with the fixing groove to achieve relative fixation of the fixing part 2 and the bottom plate 1; or, the fixing part 2 and the bottom plate 1 can also be fixed by welding to ensure the installation stability of the fixing part 2.

[0044] Further, in the present application, the side positioning portion 4 is detachably mounted on the upper side wall of the base plate 1 , and the mounting position of the side positioning portion 4 is adjustable along the second direction.

[0045] It can be understood that after completing the stacking and extrusion work of the battery module 01, it is also necessary to install the steel belt or two side panels 014 of the battery module 01. As set above, when installing the steel belt or installing the side panel 014 close to the side positioning portion 4, the side positioning portion 4 can be removed so that the steel belt or the side panel 014 on this side has sufficient installation space to avoid interference with the installation of the steel belt or the side panel 014, which is convenient for operation.

[0046] In addition, since different types of battery modules 01 have different sizes, such as the width of the battery module 01 may be different, the present application sets the installation position of the side positioning portion 4 to be adjustable along the second direction, and the installation position of the side positioning portion 4 can be adaptively adjusted according to the width of the battery module 01, so that the battery module stacking and extrusion device of the present application can effectively be compatible with a variety of battery modules 01 of different sizes. At the same time, different types of battery modules 01 may have different lengths. In this case, the side positioning portions 4 of different lengths can be replaced to ensure that the two end plates of the battery module 01 and each battery cell 012 can be based on the side positioning portion 4 when stacking, so as to ensure the consistency of the battery module 01.

[0047] The connection mode between the side positioning portion 4 and the bottom plate 1 can be specifically set as follows:

[0048] The bottom plate 1 is provided with a plurality of threaded connection hole groups, which are distributed along the second direction, each threaded connection hole group has at least one threaded connection hole, and the side positioning portion 4 is provided with a corresponding through hole, and also includes a threaded connection member, which passes through the through hole one by one, and the threaded connection member and the side positioning portion 4 are axially limited, and are threadedly connected with the corresponding threaded connection hole to achieve relative fixation of the side positioning portion 4 and the bottom plate 1. The position of the side positioning portion 4 can be adjusted along the second direction so that the through hole of the side positioning portion 4 is correspondingly connected with different threaded connection hole groups on the bottom plate 1, so that the position switching of the side positioning portion 4 can be achieved.

[0049] Please continue to refer to Figure 2 and Figure 3 In this embodiment, the side positioning portion 4 includes a fixed block 41 and a movable positioning block 42. The fixed block 41 includes a first horizontal plate portion and a first vertical plate portion 411 connected at a right angle. The first horizontal plate portion is installed on the upper side wall of the bottom plate 1. The movable positioning block 42 includes a second horizontal plate portion 421 and a second vertical plate portion 422 connected at a right angle.

[0050] In the installed state, the first vertical plate portion 411 and the second vertical plate portion 422 are in contact with each other, the second vertical plate portion 422 is closer to the fixed portion 2 than the first vertical plate portion 411, the second horizontal plate portion 421 is supported on the upper side wall of the first vertical plate portion 411, and the second vertical plate portion 422 faces the side wall of the fixed portion 2 to form a positioning reference wall.

[0051] It can be seen that in this embodiment, the side positioning part 4 is set as a split structure of a fixed block 41 and a movable positioning block 42, and the movable positioning block 42 and the fixed block 41 are stably installed through structural design. There is no need to connect the movable positioning block 42 and the fixed block 41 through other connecting structures. When it is necessary to install a steel belt or a side plate 014 close to the side of the side positioning part 4, the movable positioning block 42 can be directly removed, so that the steel belt or the side plate 014 on this side has enough installation space, and the operation is more convenient. Only when it is necessary to stack and extrude different types of battery modules 01, it is necessary to detach the fixed block 41 to adjust the installation position of the fixed block 41.

[0052] Of course, in practice, the fixed block 41 and the movable positioning block 42 are not limited to the above-mentioned structural form. For example, the fixed block 41 can be T-shaped, and the horizontal plate portion of the fixed block 41 is connected to the upper side wall of the bottom plate 1, and the movable positioning block 42 is an inverted U-shaped structure. The movable positioning block 42 is mounted on the vertical plate portion of the fixed block 41, and the closed end wall of the movable positioning block 42 is supported on the upper side wall of the vertical plate portion of the fixed block 41. The side wall of the movable positioning block 42 facing the fixed portion 2 forms a positioning reference wall.

[0053] Please continue to refer to Figure 1 In the utility model, the battery module stacking and extrusion device also includes a cushion block 5, which is detachably mounted on the upper side wall of the bottom plate 1, and is located between the fixed portion 2 and the movable extrusion portion 3, and is arranged along the first direction.

[0054] In this way, during operation, the first end plate 011, each battery cell 012, and the second end plate 013 of the battery module 01 can all be supported above the pad 5, so that the first end plate 011, each battery cell 012, and the second end plate 013 of the battery module 01 all have a certain distance from the bottom plate 1. When the stacking and extrusion work of the battery module 01 is completed, it is necessary to install the side plate 014 of the battery module 01. Since the lower end of the side plate 014 has a downward folded edge, the distance between the first end plate 011, each battery cell 012, and the second end plate 013 of the battery module 01 and the bottom plate 1 can make the downward folded edge of the side plate 014 have sufficient installation space, which is convenient for the installation of the side plate 014.

[0055] When the battery module 01 needs to be fixed by a steel belt, before the stacking work begins, one of the steel belts can be supported on the upper side wall of the base plate 1, and the pad 5 is located inside the steel belt (the steel belt is annular, and the pad 5 is located inside the annular area of ​​the steel belt), and the height of the steel belt should not be higher than the height of the pad 5 to ensure that the steel belt does not interfere with the stacking and extrusion process of the battery module 01. After the stacking and extrusion work of the battery module 01 is completed, when the steel belt needs to be installed, the steel belt can be put around the lower end of the battery module 01 from bottom to top, and the other steel belt can be put around the upper end of the battery module 01 from top to bottom, so as to tighten the battery module 01.

[0056] Depend on Figure 1 It can be seen that in this embodiment, there are multiple pads 5, and the multiple pads 5 are arranged along the first direction. It can be understood that in practice, the number of pads 5 is not limited, and can be adaptively adjusted according to the size of the corresponding battery module 01. For example, when the length of the battery module 01 increases, the number of pads 5 also needs to be increased accordingly to ensure that the battery module 01 can be supported above the pads 5.

[0057] Of course, in practice, the pad 5 can also be an integrated structure, that is, the number of pads 5 is one. When the size of the battery module 01 changes, pads 5 of different sizes can be replaced accordingly to ensure that the battery module 01 can be supported above the pad 5.

[0058] Furthermore, in this embodiment, the end wall of the fixed portion 2 facing the movable extrusion portion 3 has a positioning portion (not shown in the figure), and the positioning portion is used to be inserted and matched with the corresponding end plate of the battery module 01 to vertically limit the battery module 01.

[0059] It can be understood that during the process of the active extrusion part 3 extruding the battery module 01, the end of the battery module 01 close to the fixed part 2 may slide upward. Based on this, the present application sets a positioning part on the end wall of the fixed part 2 facing the active extrusion part 3, and the positioning part and the corresponding end plate of the battery module 01 are inserted and matched. The positioning part can be a positioning protrusion, and correspondingly, the corresponding end plate of the battery module 01 needs to be provided with a positioning groove. The positioning part can also be a positioning groove, and correspondingly, the corresponding end plate of the battery module 01 needs to be provided with a positioning protrusion to ensure the vertical limitation of the fixed part 2 and the corresponding end plate of the battery module 01. Since the middle end plate of the battery module 01 and the adjacent battery cells 012 and the two adjacent battery cells 012 have been bonded together by structural adhesive or pressure-sensitive adhesive, in fact, the fixed part 2 and the battery module 01 are vertically limited as a whole to prevent the battery module 01 from sliding upward during extrusion, and to ensure the vertical height consistency of the battery module 01.

[0060] Please continue to refer to Figure 1In the present application, the movable extrusion part 3 includes an extrusion part 31 and a driving unit. The driving unit is located on the side of the extrusion part 31 facing away from the fixed part 2. The driving unit is connected to the extrusion part 31. The driving unit is used to drive the extrusion part 31 to move along the first direction. The driving unit can apply an extrusion force to the battery module 01 through the extrusion part 31 to perform an extrusion operation on the battery module 01.

[0061] Among them, in this embodiment, the driving unit includes a threaded sleeve 32, an internal screw 33 and a force-applying mechanism 34. The threaded sleeve 32 and the base plate 1 are relatively fixed, the threaded sleeve 32 extends along the first direction, the internal screw 33 is inserted into the threaded sleeve 32, the internal screw 33 and the threaded sleeve 32 are threadedly connected, one end of the internal screw 33 is connected to the extrusion part 31, and the force-applying mechanism 34 is connected to the other end of the internal screw 33. The force-applying mechanism 34 is used to drive the internal screw 33 to rotate.

[0062] In this way, when the force-applying mechanism 34 drives the inner screw 33 to rotate, under the action of the threaded cooperation between the inner screw 33 and the threaded sleeve 32, the inner screw 33 can move along the axial direction of the threaded sleeve 32, thereby realizing the movement of the extrusion part 31 along the first direction, extruding the battery module 01, ensuring the effective installation of the subsequent side plate 014, and realizing strict control of the length of the battery module 01.

[0063] Of course, in practice, the specific structure of the drive unit is not limited. For example, the drive unit can be a drive mechanism such as a hydraulic cylinder / air cylinder / electric cylinder that can generate linear displacement. The cylinder body of the hydraulic cylinder / air cylinder / electric cylinder is relatively fixed to the bottom plate 1, and the push rod of the hydraulic cylinder / air cylinder / electric cylinder extends along the first direction. The push rod of the hydraulic cylinder / air cylinder / electric cylinder is connected to the extrusion part 31. The extension or retraction of the push rod of the hydraulic cylinder / air cylinder / electric cylinder can drive the extrusion part 31 to move along the first direction. The hydraulic cylinder / air cylinder / electric cylinder applies an extrusion force to the battery module 01 through the extrusion part 31 to perform an extrusion operation on the battery module 01. Of course, the structure of the drive unit in this application is simple and low-cost, which is a more preferred technical solution.

[0064] The specific structure of the force applying mechanism 34 is not limited. For example, the force applying mechanism 34 may be an electric tightening mechanism, or a driving motor, etc., as long as the force applying mechanism 34 can drive the inner screw 33 to rotate.

[0065] As mentioned above, the threaded sleeve 32 and the base plate 1 are relatively fixed. Specifically in this embodiment, the drive unit further includes a fixing seat 35, the fixing seat 35 is relatively fixed to the base plate 1, and the threaded sleeve 32 is fixedly mounted on the fixing seat 35. The threaded sleeve 32 and the fixing seat 35 can be fixed by welding, and the connection is reliable.

[0066] Please continue to refer to Figure 1In this embodiment, the movable extrusion portion 3 also includes an integrated base 36, the extrusion portion 31 and the driving unit are arranged on the integrated base 36, the integrated base 36 is installed on the upper side wall of the base plate 1, and the installation position of the integrated base 36 is adjustable along the first direction.

[0067] In this way, the integrated base 36 plays the role of integrating the installation extrusion part 31 and the driving unit; at the same time, the installation position of the integrated base 36 is adjustable along the second direction. When the lengths of different types of battery modules 01 are different, the installation position of the integrated base 36 can be adjusted so that the movable extrusion part 3 is relatively close to or far away from the fixed part 2. On the premise of ensuring that the battery module 01 has sufficient installation space, the movement stroke of the movable extrusion part 3 is shortened, thereby improving the extrusion work efficiency of the battery module 01.

[0068] In order to ensure that the extrusion part 31 can only move along the first direction under the action of the driving unit, a guide part can also be set between the integrated base 36 and the extrusion part 31. The guide part extends along the first direction, and the integrated base 36 and the extrusion part 31 are slidably connected through the guide part, so that the extrusion part 31 can only slide along the extension direction of the guide part under the action of the driving unit, thereby guiding the extrusion part 31.

[0069] The guide portion may include a sliding rail and a slider that are slidably mounted, one of which is disposed on the upper side wall of the integrated base 36, and the other of which is disposed on the extrusion portion 31. Alternatively, the guide portion may include a guiding groove and a guiding protrusion that are slidably mounted, one of which is disposed on the upper side wall of the integrated base 36, and the other of which is disposed on the lower end of the extrusion portion 31.

[0070] Furthermore, if Figure 1 As shown, in order to guide the extrusion part 31, the guide part can also be arranged between the extrusion part 31 and the fixed seat 35. Specifically, the guide part includes a guide hole arranged on the fixed seat 35, the guide hole extends along the first direction, and the number of the guide holes is one or more, and the multiple guide holes are spaced apart along the second direction. The guide part also includes a guide rod 37 passing through the corresponding guide hole, one end of the guide rod 37 is connected to the extrusion part 31, and the other end of each guide rod 37 is correspondingly connected to one body.

[0071] In this way, when the extrusion part 31 moves under the action of the driving unit, the guide rod 37 can only slide inside the guide hole along the extension direction of the guide hole, that is, the guide hole plays a guiding role for the guide rod 37. Since the guide rod 37 is connected to the extrusion part 31, it can also play a guiding role for the extrusion part 31, so that the extrusion part 31 can only move along the extension direction of the guide hole, that is, the first direction.

[0072] It can be understood that, in practice, it is also feasible to provide the guide hole on the extrusion portion 31 and connect the guide rod 37 to the fixing seat 35 .

[0073] like Figure 1 It can be seen that in this embodiment, the structure of the pressing portion 31 is similar to that of the fixing portion 2 , so it will not be described in detail here.

[0074] Furthermore, the battery module stacking and extrusion device of the present application also includes a pressure sensor (not shown in the figure), which can be arranged on the end wall of the fixed part 2 facing the movable extrusion part 3; or, the pressure sensor can be arranged on the end wall of the movable extrusion part 3 facing the fixed part 2; or, the pressure sensor is simultaneously arranged on the opposite end walls of the fixed part 2 and the movable extrusion part 3.

[0075] In this way, the pressure sensor can be used to monitor the extrusion pressure of the battery module 01 during the extrusion process in real time. If the extrusion pressure exceeds the set range, the pressure sensor will issue an early warning, thereby achieving full monitoring of the extrusion pressure of the battery module 01 during extrusion. When the pressure sensor is disposed on the opposite end walls of the fixed part 2 and the movable extrusion part 3 at the same time, a redundant design of the pressure sensor can be achieved to ensure the reliability of the detection result.

[0076] When the battery module stacking and extrusion device of the utility model is used, the production process of the battery module 01 is as follows:

[0077] According to the size of the battery module 01 to be produced, install the cushion block 5 of the appropriate size and the movable positioning block 42 of the appropriate size;

[0078] If the battery module 01 is tightened by steel belts, one of the steel belts needs to be supported on the upper side wall of the bottom plate 1, and the pad 5 is located inside the steel belt;

[0079] With the side positioning portion 4 as a reference and the fixing portion 2 as a limit, the first end plate 011 of the battery module 01, each battery cell 012, and the second end plate 013 are stacked together in a first direction in sequence;

[0080] Control the movable extrusion part 3 to move toward the direction close to the fixed part 2, and extrudes the battery module 01 until the battery module 01 is extruded to a specified length;

[0081] The movable positioning block 42 is removed, and the steel belt or two side plates 014 of the battery module 01 are installed to complete the installation of the battery module 01 .

[0082] The above is a detailed introduction to a battery module stacking and extrusion device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A battery module stacking and extrusion device, characterized in that: The invention comprises a bottom plate (1), a fixed portion (2) and a movable extrusion portion (3), wherein the fixed portion (2) is mounted on the upper side wall of the bottom plate (1), the movable extrusion portion (3) is located on one side of the fixed portion (2) in a first direction, and the movable extrusion portion (3) is movable along the first direction to approach or move away from the fixed portion (2); The invention also comprises a side positioning portion (4), wherein the side positioning portion (4) is mounted on the upper side wall of the base plate (1), and the side positioning portion (4) is located on one side of the second direction of the fixing portion (2), and the side positioning portion (4) faces the side wall of the fixing portion (2) to form a positioning reference wall, and the positioning reference wall extends along the first direction, and the positioning reference wall is at least partially located between the fixing portion (2) and the movable extrusion portion (3), and the first direction and the second direction are perpendicular to each other.

2. The battery module stacking and extrusion device according to claim 1, characterized in that: The side positioning portion (4) is detachably mounted on the upper side wall of the bottom plate (1), and the mounting position of the side positioning portion (4) is adjustable along the second direction.

3. The battery module stacking and extrusion device according to claim 2, characterized in that: The side positioning portion (4) comprises a fixed block (41) and a movable positioning block (42); the fixed block (41) is mounted on the upper side wall of the base plate (1); the movable positioning block (42) is supported on the fixed block (41); and the movable positioning block (42) faces the side wall of the fixed portion (2) to form the positioning reference wall.

4. The battery module stacking and extrusion device according to claim 3, characterized in that: The fixed block (41) comprises a first horizontal plate portion and a first vertical plate portion (411) connected at a right angle, the first horizontal plate portion being mounted on the upper side wall of the bottom plate (1), and the movable positioning block (42) comprises a second horizontal plate portion (421) and a second vertical plate portion (422) connected at a right angle, In the installed state, the first vertical plate portion (411) and the second vertical plate portion (422) are in close contact with each other, the second vertical plate portion (422) is closer to the fixed portion (2) than the first vertical plate portion (411), the second horizontal plate portion (421) is supported on the upper side wall of the first vertical plate portion (411), and the second vertical plate portion (422) faces the side wall of the fixed portion (2) to form the positioning reference wall.

5. The battery module stacking and extrusion device according to any one of claims 1 to 4, characterized in that: It also comprises a cushion block (5), which is detachably mounted on the upper side wall of the base plate (1), the cushion block (5) is located between the fixed portion (2) and the movable extrusion portion (3), and the cushion block (5) is arranged along the first direction.

6. The battery module stacking and extrusion device according to any one of claims 1 to 4, characterized in that: The end wall of the fixed portion (2) facing the movable extrusion portion (3) has a positioning portion, and the positioning portion is used to be inserted and matched with the corresponding end plate of the battery module (01) to vertically limit the battery module (01).

7. The battery module stacking and extrusion device according to any one of claims 1 to 4, characterized in that: The movable extrusion portion (3) comprises an extrusion portion (31) and a driving unit, wherein the driving unit is located on a side of the extrusion portion (31) facing away from the fixed portion (2), the driving unit is connected to the extrusion portion (31), and the driving unit is used to drive the extrusion portion (31) to move along the first direction.

8. The battery module stacking and extrusion device according to claim 7, characterized in that: The driving unit comprises a threaded sleeve (32), an internal screw (33) and a force applying mechanism (34); the threaded sleeve (32) and the base plate (1) are relatively fixed; the threaded sleeve (32) extends along the first direction; the internal screw (33) is inserted into the threaded sleeve (32); the internal screw (33) and the threaded sleeve (32) are threadedly connected; one end of the internal screw (33) is connected to the extrusion portion (31); the force applying mechanism (34) is connected to the other end of the internal screw (33); and the force applying mechanism (34) is used to drive the internal screw (33) to rotate.

9. The battery module stacking and extrusion device according to claim 7, characterized in that: The movable extrusion portion (3) further comprises an integrated base (36), the extrusion portion (31) and the driving unit are arranged on the integrated base (36), the integrated base (36) is mounted on the upper side wall of the base plate (1), and the mounting position of the integrated base (36) is adjustable along the first direction.

10. The battery module stacking and extrusion device according to any one of claims 1 to 4, characterized in that: It also comprises a pressure sensor, which is arranged on at least one of the opposite end walls of the fixed part (2) and the movable pressing part (3).

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