Pressing device

Abstract

The utility model discloses a pressing device, and relates to the technical field of battery production. The pressing device presses the support plate between the two electrode terminals, and the support plate is connected with the busbar; and the bracket plate comprises a bonding layer which is bonded with the battery monomers. The pressing device comprises a connecting structure and a pressing plate, the pressing plate is detachably connected with the connecting structure, and the plate face of the pressing plate is used for abutting against the plate face of the support plate. The pressing device abuts against the support plate through the pressing plate, and the pressing device can enable the bonding layer of the support plate to be more uniformly bonded to the battery monomer, so that the positions of the support plate and the busbar limited by the support plate are more stable, the welding quality of the busbar and an electrode terminal is improved, and the production quality is improved; the pressing plate is detachably connected with the connecting structure, so that the pressing device can be suitable for the battery monomers with different specifications by installing different pressing plates, and the connecting structure can be repeatedly used, so that the overall storage space of the pressing devices with different specifications can be reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of battery production, in particular to a pressing device. BACKGROUND

[0002] For battery products such as lithium batteries and sodium batteries, the battery monomers are usually connected through welding of electrode terminals and busbars.

[0003] In the assembly process of the battery pack, sometimes the welding between the busbar and the electrode terminal is virtual, and the phenomenon of burst hole occurs, and the quality of the battery product needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the application is to provide a pressing device to improve the quality of the battery product.

[0005] To achieve the above purpose, the pressing device is used to press the support plate between the two electrode terminals of the battery monomer, and the support plate is used to connect the busbar; the support plate comprises an adhesive layer, and the adhesive layer is bonded to the battery monomer; the pressing device comprises a connecting structure and a pressing plate, and the connecting structure is used to connect a force body; the pressing plate is detachably connected with the connecting structure, and the plate surface of the pressing plate is used to abut against the plate surface of the support plate.

[0006] The pressing device provided by the application can make the adhesive layer of the support plate more uniformly bonded to the battery monomer when in use, so as to facilitate the position of the support plate and the busbar limited by the support plate to be more stable, thereby facilitating the improvement of the welding quality of the busbar and the electrode terminal, and thereby facilitating the improvement of the quality of the battery product. In addition, the pressing plate is detachably connected with the connecting structure, so that the pressing device can be applied to battery monomers of different specifications by installing different pressing plates, and the connecting structure can be reused to facilitate the reduction of the overall storage space of the pressing devices of different specifications.

[0007] In some implementations, the connecting structure is provided with a first magnetic component, and the pressing plate is provided with a second magnetic component; the first magnetic component and the second magnetic component are magnetically attracted to each other to make the pressing plate abut against the connecting structure.

[0008] At this time, the pressing plate and the connecting structure are connected through the magnetic attraction between the first magnetic component and the second magnetic component, which facilitates the replacement efficiency of the pressing plates of different specifications and saves the switching time of the pressing plates of different specifications.

[0009] In some implementations, the first magnetic assembly includes at least two first magnetic bodies, which are arranged at intervals along the thickness direction of the pressing plate; the second magnetic assembly includes at least two second magnetic bodies, which are arranged at intervals along the thickness direction of the pressing plate; the first magnetic bodies and the second magnetic bodies are magnetically attracted at corresponding positions to enable the pressing plate to abut against the connecting structure.

[0010] At this time, the first magnetic bodies and the second magnetic bodies are arranged at intervals respectively, so that the pressing plate and the connecting structure can be positioned by magnetic attraction at corresponding positions, which is conducive to improving the positional accuracy between the pressing plate and the connecting structure.

[0011] In some implementations, the magnetic permeability of the connecting structure is less than the magnetic permeability of the first magnetic assembly, and the magnetic permeability of the pressing plate is less than the magnetic permeability of the second magnetic assembly.

[0012] At this time, the magnetic permeability of the connecting structure is less than the magnetic permeability of the first magnetic assembly, and the magnetic permeability of the pressing plate is less than the magnetic permeability of the second magnetic assembly, which is conducive to reducing the interference of the connecting structure and the pressing plate with the magnetic attraction between the first magnetic assembly and the second magnetic assembly, so as to facilitate more efficient and accurate magnetic attraction between the first magnetic assembly and the second magnetic assembly.

[0013] In some implementations, the connecting structure includes a first connecting body, a second connecting body, and an elastic assembly, two ends of the elastic assembly being connected to the first connecting body and the second connecting body respectively; the first connecting body is used to connect a force applying body, the second connecting body is detachably connected to the pressing plate; in the case that the first connecting body moves towards the second connecting body, the elastic assembly is used to make the second connecting body relatively move away from the first connecting body.

[0014] At this time, the pressing device can change the elastic force of the elastic assembly, so as to facilitate the user to understand the pressing force.

[0015] In some implementations, the first connecting body is provided with a first electrically conductive body, and the second connecting body is provided with a second electrically conductive body; the first electrically conductive body and the second electrically conductive body are arranged at corresponding positions to abut against each other in the case that the first connecting body moves towards the second connecting body; the first electrically conductive body and the second electrically conductive body are connected to the same electrically conductive loop, and the electrically conductive loop is further provided with a power supply and a signal generating device; in the case that the first electrically conductive body and the second electrically conductive body relatively move to abut against each other, the signal generating device sends an abutment signal.

[0016] At this time, the pressing device can correspond the abutment position of the first electrically conductive body and the second electrically conductive body to the preset pressing force, and can prompt the pressing to be in place by the abutment signal sent by the signal generating device.

[0017] In some implementations, the signal generating device includes at least one of a wireless signal transmitter, a buzzer, and an indicator light.

[0018] At this time, the wireless signal transmitter, the buzzer, and the indicator light can stably send signals, thereby facilitating to improve the use stability of the pressing device.

[0019] In some implementations, the first connecting body has a receiving groove in which the power supply and the signal generating device are respectively accommodated; the pressing device further includes a cover plate connected with the first connecting body and at least partially covering the receiving groove.

[0020] At this time, the power supply and the signal generating device are respectively accommodated in the receiving groove, thereby facilitating to improve the compactness of the pressing device. In addition, the cover plate at least partially covers the receiving groove, thereby facilitating to avoid the accidental falling of the power supply and the signal generating device, and also facilitating to avoid the failure of the power supply and the signal generating device caused by the foreign matter interference phenomenon such as dust pollution and object impact.

[0021] In some implementations, the elastic assembly includes a spring and a guide column, a first end of the guide column is fixedly connected with a first one of the first connecting body and the second connecting body; a second end of the guide column extends into a connecting hole provided in a second one of the first connecting body and the second connecting body; the spring is sleeved outside the guide column, and two ends of the spring are respectively connected with the first connecting body and the second connecting body; in the case that the first connecting body moves towards the second connecting body, the spring is configured to move the second connecting body away from the first connecting body.

[0022] At this time, the spring is sleeved outside the guide column, thereby facilitating to improve the movement stability by the guide column in the case that the first connecting body moves towards the second connecting body.

[0023] In some implementations, the pressing plate includes an abutting layer and a connecting layer, the connecting layer is detachably connected with the connecting structure; the abutting layer is connected to a side of the connecting layer away from the connecting structure, the hardness of the abutting layer is less than that of the connecting layer, and a surface of the abutting layer away from the connecting layer is configured to abut against a plate surface of the support plate.

[0024] At this time, the pressing device can abut against the support plate by the abutting layer with smaller hardness, thereby facilitating to reduce the damage risk of the support plate.

[0025] In some implementations, a plate surface of the pressing plate away from the connecting structure is provided with two first recesses, the two first recesses are respectively configured to accommodate two electrode terminals of a same battery cell; a first one of the two first recesses has a first side wall segment, the first side wall segment is configured to abut against a side wall of a first electrode terminal of the battery cell; a second one of the two first recesses has a second side wall segment, the second side wall segment is configured to abut against a side wall of a second electrode terminal of the battery cell.

[0026] At this time, the pressing device can abut against the electrode terminals through the first side wall segment and the second side wall segment respectively, thereby improving the positional accuracy of the pressing device relative to the battery monomer, thereby facilitating more comprehensive pressing of each position of the support plate.

[0027] In some implementations, in a case where the first side wall segment and the second side wall segment abut against the electrode terminals respectively and the plate face of the pressing plate abuts against the plate face of the support plate, a wall face of the first recess toward the connecting structure is oppositely arranged in position with a top face of the electrode terminal, and the wall face of the first recess toward the connecting structure is used to move to abut against the top face of the electrode terminal.

[0028] At this time, the wall face of the first recess toward the connecting structure is used to move to abut against the top face of the electrode terminal, thereby facilitating limiting the pressing plate through the top face of the electrode terminal, thereby facilitating avoiding excessive pressing of the support plate by the pressing plate.

[0029] In some implementations, a plate face of the pressing plate away from the connecting structure is provided with a second recess, and the second recess is used to accommodate a positioning pin on the support plate.

[0030] At this time, the pressing plate can accommodate the positioning pin on the support plate through the second recess, thereby facilitating avoiding the positioning pin from being hit during pressing.

[0031] In some implementations, a plate face of the pressing plate away from the connecting structure is provided with two second recesses, and the second recesses are used to accommodate the positioning pin on the support plate; and based on a midpoint of a connecting straight line between the two first recesses, the two second recesses are centrally symmetrical on the plate face of the pressing plate.

[0032] At this time, the two second recesses are centrally symmetrical, thereby respectively accommodating the positioning pin on the support plate, thereby reducing the placement orientation requirement of the pressing device during pressing, and facilitating improving the overall pressing efficiency.

[0033] In some implementations, in a case where the plate face of the pressing plate abuts against the plate face of the support plate, a length direction of the pressing plate is parallel to an arrangement direction between the two electrode terminals of the battery monomer; and in a projection along a thickness direction of the pressing plate, two ends in the length direction of the pressing plate are respectively located outside an outline of the connecting structure.

[0034] At this time, the two ends in the length direction of the pressing plate are respectively located outside the outline of the connecting structure, thereby being able to more comprehensively press the support plate through the relatively longer pressing plate, and facilitating reducing the risk of the electrode terminal being hit through the relatively shorter connecting structure.

[0035] In some implementations, at least one of the pressing plate and the connecting structure is installed with a heating assembly, and the heating assembly is used to heat the adhesive layer in a case where the plate face of the pressing plate abuts against the plate face of the support plate.

[0036] At this time, the heating assembly heats the bonding layer, thereby facilitating improvement of the bonding quality of the bonding layer and the battery monomer, thereby facilitating further improvement of the connection stability of the support plate and the battery monomer.

[0037] In some implementations, the pressing device further comprises a handle connected with the connecting structure; the force applying body comprises a hand of a user, and the handle is used for holding by the hand of the user and applying force.

[0038] At this time, the user can conveniently and quickly press the support plate through the handle of the pressing device.

[0039] In some implementations, the pressing device further comprises a marker fixedly connected with at least one of the connecting structure and the pressing plate; in a case where the plate surface of the pressing plate abuts against the plate surface of the support plate, the marker abuts against at least one of the support plate and the battery monomer to form an operation mark.

[0040] At this time, the marker abuts against at least one of the support plate and the battery monomer to form an operation mark, thereby facilitating subsequent checking of whether pressing is performed through the operation mark, thereby facilitating avoidance of missed pressing of the support plate.

[0041] In some implementations, the pressing device further comprises a cap used for connecting an end of the marker away from the connecting structure.

[0042] At this time, the cap can protect the marker, thereby facilitating improvement of the service life of the marker.

[0043] In some implementations, a side wall of the pressing plate is provided with a penetrating structure penetrating through the pressing plate in a thickness direction of the pressing plate; the marker is fixedly connected with the connecting structure, and the marker is used for abutting against at least one of the support plate and the battery monomer through the penetrating structure.

[0044] At this time, the marker passes through the penetrating structure, thereby facilitating utilization of the space of the penetrating structure, thereby facilitating improvement of the space utilization of the whole pressing device. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description; obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the drawings shown.

[0046] Figure 1 a schematic diagram of a power consumption device corresponding to an embodiment of the present application;

[0047] Figure 2 A schematic diagram of a battery device corresponding to an embodiment of the present application;

[0048] Figure 3 A schematic diagram of a battery monomer corresponding to an embodiment of the present application;

[0049] Figure 4 A schematic diagram of the installation of a support plate corresponding to an embodiment of the present application;

[0050] Figure 5 A schematic diagram of the installation of a busbar corresponding to an embodiment of the present application;

[0051] Figure 6 A perspective view of an embodiment of the pressing device provided by the present application;

[0052] Figure 7 A front view of an embodiment of the pressing device provided by the present application;

[0053] Figure 8 Another perspective view of an embodiment of the pressing device provided by the present application;

[0054] Figure 9 A bottom view of the adapter layer in an embodiment of the present application;

[0055] Figure 10 Another perspective view of an embodiment of the pressing device provided by the present application;

[0056] Figure 11 A top view of the first connecting body in an embodiment of the present application;

[0057] Figure 12 A circuit connection schematic diagram of the signal generating device in an embodiment of the present application.

[0058] Explanation of the reference signs:

[0059] 10, an electrical equipment; 11, an electrical controller; 12, a motor;

[0060] 20, a battery device; 21, a battery box; 22, a battery monomer assembly;

[0061] 221, a battery monomer; 222, a shell; 223, a top cover; 224, an adapter sheet;

[0062] 225, a bare cell; 226, a tab; 227, an electrode terminal;

[0063] 23, a circuit board; 24, a busbar; 241, a positioning hole;

[0064] 30, a support plate; 31, a positioning pin;

[0065] 400, pressing device; 410, connecting structure; 411, first connecting body; 4111, first conductive body;

[0066] 412, second connecting body; 4121, second conductive body; 413, elastic assembly; 414, power supply;

[0067] 4151, wireless signal transmitter; 4152, buzzer; 4153, indicator light; 416, accommodating groove;

[0068] 420, pressing plate; 421, linking layer; 422, abutting layer; 423, second magnetic body;

[0069] 424, first recess; 425, first side wall segment; 426, second side wall segment;

[0070] 427, second recess; 428, through structure;

[0071] 430, cover plate; 440, handle; 451, marking body; 452, cap;

[0072] The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0073] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0074] It should be noted that if the present application involves directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0075] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, "and / or" or "and / or" appears throughout the text, which means that the three parallel schemes are included; for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art; when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection claimed in the present application.

[0076] For lithium battery, sodium battery and other battery products, the battery monomer is usually connected by welding the electrode terminal and the busbar.

[0077] Among them, in the assembly process of the battery pack, sometimes there will be virtual welding, burst hole and other phenomena between the busbar and the electrode terminal, and the quality of the battery product needs to be improved.

[0078] Based on the above consideration, in order to improve the quality of the battery product, the present application provides a pressing device. In use, the pressing device can make the adhesive layer of the corresponding support plate of the busbar more evenly adhere to the battery monomer, thereby improving the welding quality of the busbar and the electrode terminal.

[0079] Next, the pressing device proposed in the present application is explained and described in detail. The pressing device can be used in a battery apparatus, which can be used in an electric device. It can be understood that the electric device can include but is not limited to mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, etc., where spacecraft includes airplanes, rockets, space shuttles and spaceships, etc., and vehicles include electric vehicles, hybrid vehicles, etc.

[0080] The following embodiments are described for the convenience of explanation, taking the electric device as a vehicle. In the absence of obvious contradictions, the following embodiments can also be applicable to electric devices other than vehicles.

[0081] Reference Figure 1The electric device 10 includes an electric controller 11, a motor 12, and a battery device 20. The battery device 20 can be used to supply power to the vehicle, for example, the battery device 20 can be used as the operating power source of the vehicle. The electric controller 11 is used to control the battery device 20 to supply power to the motor 12, for example, to supply power for starting, navigating, and driving the vehicle.

[0082] It can be understood that the battery device 20 can not only be used as the operating power source of the vehicle, but also be used as the driving power source of the vehicle, thereby completely or partially replacing the fuel or natural gas to provide driving power for the vehicle.

[0083] Referring to Figure 2 The battery device 20 includes a battery box 21 and a battery cell assembly 22, and the battery cell assembly 22 is accommodated in the battery box 21. The battery device 20 according to the embodiments of the present application can include at least one battery cell assembly 22, and the battery cell assembly 22 is used to provide voltage and capacity. The battery cell assembly 22 can include at least one battery cell 221, and the plurality of battery cells 221 can be connected in series, in parallel, or in a mixed connection manner by bus bars, wherein the mixed connection manner can be understood as including series connection and parallel connection.

[0084] The battery cell assembly 22 can be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells 221 to form an independent module. For example, the battery module can be formed by bundling a plurality of battery cells 221 by a cable tie. In some embodiments, the battery cell assembly 22 can be accommodated in the battery box 21 by being fixed in the battery box 21. Of course, the battery cell assembly 22 can also include only one battery cell 221, and the embodiments are not limited in this regard. In the drawings, the X-axis direction can correspond to the width direction of the battery cell 221 and the width direction of the battery device 20, the Y-axis direction can correspond to the thickness direction of the battery cell 221 and the length direction of the battery device 20, and the Z-axis direction can correspond to the height direction of the battery cell 221 and the height direction of the battery device 20.

[0085] In some embodiments, referring to Figure 2The battery box 21 can include a first box and a second box. The first box and the second box are coupled to form a closed space inside the battery box 21 to accommodate the battery cell assembly 22. Here, the closed space means that the first box and the second box cover each other or close to each other, and in addition, the closed space can be sealed or not sealed. It can be understood that the first box and the second box can each have an opening, and the closed space is formed by coupling the openings. Of course, one of the first box and the second box can have an opening, and the present embodiment is not limited in this regard. The battery box 21 can include a top cover, a frame, and a bottom plate, and the top cover and the bottom plate are respectively connected to the frame to form a closed space inside the battery box 21 to accommodate the battery cell 221 or the battery cell assembly 22. The first box can be the top cover (or the bottom plate), and the second box can be the combination of the frame and the bottom plate (or the combination of the frame and the top cover) with an opening.

[0086] In some embodiments, the battery device 20 can be a battery pack, and the battery pack can include the battery box 21 and one or more battery cell assemblies 22 accommodated in the battery box 21. In some embodiments, the battery box 21 can be part of the chassis structure of the vehicle as the power utilization device 10. For example, the top cover of the battery box 21 can be at least part of the bottom plate of the vehicle, or the frame of the battery box 21 can be at least part of the cross beam and the longitudinal beam of the vehicle.

[0087] In some embodiments, the battery device 20 can also be an energy storage device, and the energy storage device can include one or at least two battery clusters to improve the voltage and capacity of the energy storage device. The battery cluster can include a plurality of battery cells 221, and the plurality of battery cells 221 can be connected in series through busbars to improve the voltage of the energy storage device. In the case where the energy storage device includes at least two battery clusters, the at least two battery clusters can be connected in parallel to improve the capacity of the energy storage device. The energy storage device can include the battery box 21, and at least one side of the battery box 21 is provided with a door. The energy storage device can be an energy storage container, an energy storage cabinet, etc.

[0088] Referring to Figure 3The battery cell 221 includes a positive electrode terminal 227 (also referred to as a pole), a negative electrode terminal 227, a diaphragm, an electrolyte, and the like, and can be charged and discharged through an electrochemical reaction. The battery cell 221 can be a square cell, a cylindrical cell, a soft pack cell, or a strip cell, or the like. In addition, the battery cell 221 can include a shell 222, a top cover 223, a jumper 224, and a bare cell 225. The bare cell 225 can be formed by a pole through subsequent winding, laminating, and the like. The bare cell 225 is accommodated in the shell 222, and has two tabs 226 corresponding to the positive and negative electrodes, respectively. The jumper 224 connects different bare cells 225 through the tabs 226, and is connected to the electrode terminal 227 provided on the top cover 223.

[0089] In the battery cell assembly 22, the electrode terminal 227 can be connected in series, parallel, or mixed connection between the battery cells 221 through connection with the bus bars. The connection between the electrode terminal 227 and the bus bar can be achieved through a welding process.

[0090] For example, referring to Figure 4 and Figure 5 The support plate 30 between the two electrode terminals 227 of the battery cell 221 can include an adhesive layer that is bonded to the battery cell 221. The adhesive layer can be a back adhesive, and can include double-sided tape, a glue layer, or the like.

[0091] In the related art, when the support plate 30 is installed, the two ends of the support plate 30 are positioned by the two electrode terminals 227, respectively, and the adhesive layer of the support plate 30 is firmly attached to the battery cell 221 by manual pressing.

[0092] In this regard, referring to Figure 4 , the support plate 30 can be provided with a positioning pin 31. Referring to Figure 5The battery device 20 can further include a circuit board 23 and a busbar 24 connected to each other. The circuit board 23 can be a PCB (Printed Circuit Board) or a FPC circuit board (FPC, Flexible Printed Circuit). The busbar 24 is connected to the electrode terminal 227, for example, by a welding process. The busbar 24 can be connected to different battery monomers 221. The support plate 30 is used to connect the busbar 24. For example, the busbar 24 is provided with a positioning hole 241, and the positioning pin 31 on the support plate 30 extends into the positioning hole 241. The busbar is limited by the abutment between the positioning pin 31 and the hole wall of the positioning hole 241. The busbar 24 is connected and positioned by the positioning pin 31 on the support plate 30 which has been pasted and the positioning hole 241 on the busbar 24. Of course, the edge of the busbar 24 can be limited by abutting to the protrusion on the support plate 30, which is not limited in the embodiment.

[0093] In the related art, the circuit board 23 and the busbar 24 are assembled together when delivered. In the actual production process, due to the limitation of working space, uneven pressing force and other factors, the support plate 30 sometimes cannot be pasted firmly, so that the position of the support plate 30 may be deviated. Correspondingly, the positions of the busbar 24 and the circuit board 23 are deviated, so that the welding of the busbar 24 and the electrode terminal 227 may be virtual or the hole may be exploded, thereby directly affecting the quality of the whole battery product.

[0094] Correspondingly, referring to Figure 4 and Figure 6 , the pressing device 400 in the embodiment is used to press the support plate 30. The pressing device 400 includes a connecting structure 410 and a pressing plate 420. The connecting structure 410 is used to connect a force applying body. The pressing plate 420 is detachably connected to the connecting structure 410. The plate surface of the pressing plate 420 is used to abut against the plate surface of the support plate 30.

[0095] The pressing device 400 can be understood as a device for pressing the support plate 30, so that the adhesive layer of the support plate 30 is firmly adhered to the battery monomer 221. The adhesive layer can be located on the lower side of the support plate 30. Figure 4 The connecting structure 410 can be understood as a structure for connecting the force applying body and the pressing plate 420. The connection includes direct connection and indirect connection through other components. In addition, the connecting structure 410 can be a split structure or an integral structure. The force applying body can be the arm of an operator or a mechanical arm, a telescopic shaft or other mechanical structure. In addition, the detachable connection between the pressing plate 420 and the connecting structure 410 can be achieved by magnetic attraction, clamping, bolt fastening and other ways.

[0096] The pressing plate 420 can be understood as a plate member that provides a pressing force to the support plate 30, so that a relatively uniform pressing force is provided by the plate surface of the pressing plate 420; for example, the lower side plate surface of the pressing plate 420 can be pressed against the upper side plate surface of the support plate 30. Figure 6 Figure 4 The pressing plate 420 can be understood as a plate member that provides a pressing force to the support plate 30, so that a relatively uniform pressing force is provided by the plate surface of the pressing plate 420; for example, the lower side plate surface of the pressing plate 420 can be pressed against the upper side plate surface of the support plate 30.

[0097] According to the above description, it can be known that in use, the pressing device 400 in the embodiment can abut the support plate 30 through the pressing plate 420, the pressing area of the plate surface of the pressing plate 420 is large, and the pressing device 400 can make the adhesive layer of the support plate 30 more uniformly adhere to the battery monomer 221, thereby facilitating the position of the support plate 30 and the busbar 24 limited by the support plate 30 to be more stable, thereby facilitating the welding quality of the busbar 24 and the electrode terminal 227 to be improved, thereby facilitating the production quality of the battery product to be improved. In addition, the pressing plate 420 is detachably connected with the connecting structure 410, so that the pressing device 400 can be suitable for battery monomers 221 of different specifications by installing different pressing plates 420, and the connecting structure 410 can be reused to facilitate reducing the overall storage space of the pressing device 400 of different specifications.

[0098] In some embodiments, referring to Figure 6 and Figure 7 The connecting structure 410 includes a first connecting body 411, a second connecting body 412, and an elastic assembly 413, and the first connecting body 411 and the second connecting body 412 can be provided as connecting blocks, plate members, etc. The elastic assembly 413 can be understood as an assembly that can provide an elastic force, for example, the elastic assembly 413 can provide an elastic force by including springs, elastic sheets, elastic rubber columns, etc. The two ends of the elastic assembly 413 are respectively connected to the first connecting body 411 and the second connecting body 412, for example, the upper end and the lower end of the elastic assembly 413 are respectively connected to the first connecting body 411 and the second connecting body 412; it can be understood that the two ends of the elastic assembly 413 can be connected to the first connecting body 411 and the second connecting body 412 respectively by abutting, clamping, fastener connection, etc.

[0099] ​In some embodiments, the elastic assembly 413 can include a spring and a guide column, a first end of the guide column is fixedly connected with a first one of the first connecting body 411 and the second connecting body 412, a second one of the first connecting body 411 and the second connecting body 412 is provided with a connecting hole, a second end of the guide column extends into the connecting hole, so as to allow the first connecting body 411 and the second connecting body 412 to realize relative movement within a small range, thereby facilitating compression of the spring. It can be understood that a transverse protruding structure such as a transverse rod can be provided on the guide column, so as to clamp the first connecting body 411 or the second connecting body 412 to prevent the first connecting body 411 or the second connecting body 412 from coming off. The spring is sleeved outside the guide column, and the two ends of the spring are connected with the first connecting body 411 and the second connecting body 412, respectively, for example, by abutting, bonding, welding or the like.

[0100] In this embodiment, the spring is sleeved outside the guide column, so as to facilitate improvement of movement stability by the guide column in the case that the first connecting body 411 moves towards the second connecting body 412.

[0101] In addition, the first connecting body 411 is used to connect the force applying body, and the second connecting body 412 is detachably connected with the pressing plate 420, for example, by magnetic attraction, clamping, connection by fasteners such as bolts or the like. In the case that the first connecting body 411 moves towards the second connecting body 412, for example, Figure 7 In the case that the first connecting body 411 moves downwards, the elastic assembly 413 is used to move the second connecting body 412 away from the first connecting body 411, for example, to move or have a tendency to move downwards, so as to press the support plate 30. Specifically, in the case that the first connecting body 411 moves towards the second connecting body 412, the spring is used to move the second connecting body 412 away from the first connecting body 411, for example, to move or have a tendency to move downwards, so as to press the support plate 30.

[0102] According to the above description, it can be known that the pressing device 400 in this embodiment can change the elastic force of the elastic assembly 413, so as to facilitate the user to understand the pressing degree, for example, the user feels a larger elastic resistance by the hand, so as to know that the pressing is in place; or, the pressing degree information is provided by a pressure sensor, displacement change corresponding to the change of the elastic force, or the like.

[0103] In some embodiments, referring to Figure 6 and Figure 7The pressing device 400 further comprises a handle 440 connected with the connecting structure 410, for example, the handle 440 can be connected with the connecting structure 410 by using rivets, screws, bolts or other fasteners, or by using plug-in connection, welding or other connection methods. Correspondingly, the force applying body comprises a hand of a user, and the handle 440 is used for the hand of the user to hold and apply force, for example, the user presses the pressing device 400 downward in the figure.

[0104] In this embodiment, the user can conveniently and quickly press the support plate 30 by the handle 440 of the pressing device 400.

[0105] In some embodiments, referring to Figure 7 and Figure 8 The pressing plate 420 can comprise an abutment layer 421 and an abutting layer 422. The abutment layer 421 is detachably connected with the connecting structure 410, for example, the abutment layer 421 is detachably connected with the connecting structure 410 by using magnetic attraction, clamping, bolts or other fasteners. The abutting layer 422 is connected to a side of the abutment layer 421 away from the connecting structure 410, for example, the abutting layer 422 is arranged on the lower side of the abutment layer 421 in the figure. The hardness of the abutting layer 422 is less than the hardness of the abutment layer 421, for example, the abutting layer 422 can be made of foam, UV glue or other materials, and the abutment layer 421 can be made of POM or other materials. In addition, a surface of the abutting layer 422 away from the abutment layer 421 is used to abut against the plate surface of the support plate 30, for example, the lower surface of the abutting layer 422 in the figure is used to abut against the upper plate surface of the support plate 30.

[0106] In this embodiment, the pressing device 400 can abut against the support plate 30 by using the abutting layer 422 with relatively low hardness, thereby facilitating to reduce the risk of damage to the support plate 30.

[0107] In some embodiments, referring to Figure 7 and Figure 8 When the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30, the length direction of the pressing plate 420 is parallel to the arrangement direction of the two electrode terminals 227 of the battery monomer 221, for example, the length direction of the pressing plate 420 is arranged along the X-axis direction in the figure. When projected along the thickness direction of the pressing plate 420, the two ends in the length direction of the pressing plate 420 are respectively located outside the contour of the connecting structure 410, for example, the left and right ends of the pressing plate 420 respectively protrude out of the connecting structure 410 in the figure.

[0108] In this embodiment, the two ends in the length direction of the pressing plate 420 are respectively located outside the contour of the connecting structure 410, thereby the support plate 30 can be more comprehensively pressed by using the relatively long pressing plate 420, and the risk of impact on the electrode terminals 227 can be reduced by using the relatively short connecting structure 410.

[0109] In some implementations, refer to Figure 8 The pressing device 400 also includes a marker 451, which is fixedly connected to at least one of the connecting structure 410 and the pressing plate 420. For example, it can be connected to the connecting structure 410, specifically by means of pressing with a pressing block, fastener connection, or adhesive bonding. The marker 451 can be understood as a component capable of forming a mark; for example, the marker 451 can be a marker pen, a scoring pen with a pointed tip, etc. When the surface of the pressing plate 420 abuts against the surface of the support plate 30, it can be understood that during pressing, for example... Figure 8 When the first connector 411, the second connector 412, and the pressing plate 420 are pressed down by the handle 440, the marking body 451 abuts against at least one of the support plate 30 and the battery cell 221 to form a work mark. For example, it can abut against the support plate 30 to form a work mark. It is understood that the mark can be retained or removed in a subsequent process, such as erasing the ink from the marker pen. This embodiment does not limit this.

[0110] In this embodiment, the marker 451 abuts against at least one of the support plate 30 and the battery cell 221 to form a work mark, which facilitates subsequent inspection of whether pressing has been performed by the work mark, thereby helping to avoid missed pressing of the support plate 30.

[0111] In some implementations, reference continues. Figure 8 The pressing device 400 also includes a cap 452 for connecting the end of the marker body 451 away from the connecting structure 410, for example, connecting to the lower end of the marker body 451 in the figure; for example, the cap 452 can be fitted onto the marker body 451 in the form of a marker pen, thereby covering the lower end of the marker body 451.

[0112] In this embodiment, the cap 452 can protect the marker 451, which helps to improve the service life of the marker 451. In addition, for the marker 451 in the form of a pen, when the pressing device 400 is not used for a long time, the cap 452 can be used to cover the marker 451 in the form of a pen, thereby preventing the ink from drying out.

[0113] In some implementations, refer to Figure 8 and Figure 8 ,in Figure 9A bottom view of the abutting layer 421 of the pressing plate 420 in this embodiment is shown; the side wall of the pressing plate 420 is provided with a penetrating structure 428 penetrating through the pressing plate 420 along the thickness direction of the pressing plate 420, for example, can penetrate through the abutting layer 421 and the abutting layer 422 mentioned above; wherein the penetrating structure 428 can be provided as a notch or a through hole. The marker body 451 is fixedly connected with the connecting structure 410, for example, by crimping block crimping fixation, or directly fastening, bonding and the like. The marker body 451 is used to abut against at least one of the support plate 30 and the battery monomer 221 by penetrating through the penetrating structure 428, for example, the marker body 451 penetrates through the penetrating structure 428 along the up-down direction in Figure 9 to perform marking work.

[0114] In this embodiment, the marker body 451 penetrates through the penetrating structure 428, thereby facilitating the use of the space of the penetrating structure 428, thereby facilitating the improvement of the space utilization of the whole pressing device 400.

[0115] For detachable connection of the pressing plate 420 and the connecting structure 410, in some embodiments, the connecting structure 410 is provided with a first magnetic component, and the pressing plate 420 is provided with a second magnetic component; the first magnetic component and the second magnetic component are attracted by magnetism to abut the pressing plate 420 against the connecting structure 410. For example, the first magnetic component and the second magnetic component can respectively include a magnet and be oppositely arranged by a south pole and a north pole to be attracted; or one of the first magnetic component and the second magnetic component can include a magnet, and the other can include an iron block, a cobalt block or a nickel block, thereby being attracted; or at least one of the first magnetic component and the second magnetic component can include an electromagnet, thereby having magnetism when energized to facilitate magnetic attraction.

[0116] In this embodiment, the pressing plate 420 and the connecting structure 410 are connected by magnetic attraction between the first magnetic component and the second magnetic component, thereby facilitating the replacement efficiency of different specifications of the pressing plate 420 and saving the switching time of different specifications of the pressing plate 420.

[0117] In some embodiments, the first magnetic component includes at least two first magnetic bodies, which are projected along the thickness direction of the pressing plate 420 and are arranged at intervals; for example, the first magnetic component can include four first magnetic bodies, and the four first magnetic bodies are arranged in a rectangle. In addition, referring to Figure 8 , the second magnetic component includes at least two second magnetic bodies 423, for example, four second magnetic bodies 423; which are projected along the thickness direction of the pressing plate 420, for example, the view angle shown in Figure 9 is projected, and the at least two second magnetic bodies 423 are arranged at intervals, for example, in a Figure 9The rectangle is formed by magnetic attraction between the first and second magnetic bodies 423, which are positioned in a one-to-one correspondence. For example, they are magnetically attracted at the four corners of the rectangle so that the pressing plate 420 abuts against the connecting structure 410. The first and second magnetic bodies 423 can be electromagnets, magnets, iron blocks, etc.

[0118] In this embodiment, the first magnetic bodies and the second magnetic bodies 423 are arranged at intervals, so that the pressing plate 420 and the connecting structure 410 can be positioned by magnetic attraction of the first magnetic bodies and the second magnetic bodies 423 at corresponding positions, which helps to improve the positional accuracy between the pressing plate 420 and the connecting structure 410.

[0119] In some embodiments, the magnetic permeability of the connecting structure 410 is less than that of the first magnetic component, and the magnetic permeability of the pressing plate 420 is less than that of the second magnetic component. For example, the first and second magnetic components may respectively include electromagnets, magnets, iron blocks, etc., thus having relatively large magnetic permeability; the connecting structure 410 may be made of plastics such as acetal, and the pressing plate 420 may be made of plastics such as acetal, foam, etc., thus having relatively small magnetic permeability.

[0120] In this embodiment, the magnetic permeability of the connecting structure 410 is less than that of the first magnetic component, and the magnetic permeability of the pressing plate 420 is less than that of the second magnetic component. This helps to reduce the interference of the connecting structure 410 and the pressing plate 420 on the magnetic attraction between the first magnetic component and the second magnetic component. This can be understood as the first magnetic component and the second magnetic component being able to attract each other more quickly and accurately, thereby facilitating more efficient and accurate magnetic attraction between the first magnetic component and the second magnetic component.

[0121] In some implementations, refer to Figure 9 and Figure 8 (Bottom view), the pressing plate 420 has two first recesses 424 on its surface facing away from the connecting structure 410, for example... Figure 9 The lower side surface of the pressing plate 420 is provided with two first recesses 424, which can be understood as the first recesses 424 recessing into the interior of the pressing plate 420 from the lower side surface of the pressing plate 420. These first recesses 424 can penetrate the abutment layer 422 of the pressing plate 420 and recess into the connecting layer 421 of the pressing plate 420. Furthermore, the two first recesses 424 are respectively used to accommodate the two electrode terminals 227 of the same battery cell 221, thereby avoiding pressure damage to the electrode terminals 227.

[0122] The first first recess 424 (on the left side in the figure) has a first side wall section 425 facing the second first recess 424, for example, the first side wall section 425 in the figure faces right relatively; the second first recess 424 (on the right side in the figure) has a second side wall section 426 facing the first first recess 424, for example, the second side wall section 426 in the figure faces left relatively.

[0123] In the case of performing the pressing operation, the first side wall section 425 (on the left side in the figure) is used to abut against the side wall of the first electrode terminal 227 of the battery monomer 221, and the second side wall section 426 (on the right side in the figure) is used to abut against the side wall of the second electrode terminal 227 of the battery monomer 221, thereby facilitating positioning through the two electrode terminals 227 of the battery monomer 221.

[0124] In this embodiment, the pressing device 400 can abut against the electrode terminal 227 through the first side wall section 425 and the second side wall section 426 respectively, thereby improving the positional accuracy of the pressing device 400 relative to the battery monomer 221, thereby facilitating more comprehensive pressing of each position of the support plate 30.

[0125] In some embodiments, in the case that the first side wall section 425 and the second side wall section 426 abut against the electrode terminal 227 respectively and the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30, for example, in the process of pressing the support plate 30, the wall surface (for example, the upper wall surface in the Figure 8 ) of the connecting structure 410 facing the first recess 424 is arranged opposite to the top surface of the electrode terminal 227 in position, and the wall surface (for example, the upper wall surface in the Figure 8 ) of the connecting structure 410 facing the first recess 424 is used to move to abut against the top surface of the electrode terminal 227, which can be understood as that the wall surface of the connecting structure 410 facing the first recess 424 can form a distance equal to zero with the top surface of the electrode terminal 227.

[0126] In this embodiment, the wall surface (for example, the upper wall surface in the Figure 8 ) of the connecting structure 410 facing the first recess 424 is used to move to abut against the top surface of the electrode terminal 227, thereby facilitating limiting the pressing plate 420 through the top surface of the electrode terminal 227, thereby facilitating avoiding excessive pressing of the support plate 30 by the pressing plate 420.

[0127] In this embodiment, the first recess 424 can extend to the side wall of the pressing plate 420, for example, extend to the left side wall or the right side wall of the pressing plate 420 in the Figure 8 , thereby the first recess 424 as a whole is in the shape of a notch; in this case, the side of the connecting structure 410 facing the first recess 424 (for example, the upper side in the Figure 8The top side of the pressing plate 420 in the embodiment also has a wall surface, which can be understood as the first recess 424 not penetrating the pressing plate 420 completely, thereby facilitating avoiding the pressing plate 420 from forming sharp corners at the first recess 424, and thereby facilitating reducing the risk of scratching.

[0128] In some embodiments, the plate surface of the pressing plate 420 away from the connecting structure 410 is provided with a second recess 427 for accommodating the positioning pin 31 on the support plate 30. For example, Figure 8 The lower plate surface of the pressing plate 420 in the embodiment is provided with a second recess 427, which can be understood as the second recess 427 recessing from the lower plate surface of the pressing plate 420 to the interior of the pressing plate 420. The second recess 427 can penetrate the abutting layer 422 of the pressing plate 420 and recess to the interfacing layer 421 of the pressing plate 420. Of course, the second recess 427 can also only penetrate the abutting layer 422 or not penetrate the abutting layer 422 completely, and the present embodiment does not limit this.

[0129] In the embodiment, the pressing plate 420 can accommodate the positioning pin 31 on the support plate 30 through the second recess 427, thereby facilitating avoiding the positioning pin 31 from being hit during pressing.

[0130] In some embodiments, the plate surface of the pressing plate 420 away from the connecting structure 410 (for example Figure 8 the lower surface in the embodiment) is provided with two second recesses 427 described above for accommodating the positioning pin 31 on the support plate 30. Referring to Figure 8 , on the plate surface of the pressing plate 420, the two second recesses 427 are centrally symmetrical based on the midpoint of the connecting straight line (referring to the horizontally arranged center line in the figure) between the two first recesses 424. It can be understood that the symmetry center of the central symmetry of the two second recesses 427 (for example Figure 9 point A in the embodiment) coincides with the midpoint of the connecting straight line between the two first recesses 424. In the case where the electrode terminal 227 is in a cylindrical shape, the side wall surface of the first recess 424 can be arc-shaped, and the connecting straight line between the two first recesses 424 can respectively use the center of the two first recesses 424 as the starting point and the terminal. Of course, referring to Figure 9 , the connecting straight line between the two first recesses 424 can also respectively use the edges of the two first recesses 424 as the starting point and the terminal.

[0131] In the embodiment, the two second recesses 427 are centrally symmetrical, thereby respectively being capable of accommodating the positioning pin on the support plate 30, thereby reducing the requirement for the placement orientation of the pressing device 400 during pressing, for example, the pressing device 400 can be used quickly after being rotated by 180 degrees, thereby facilitating improving the overall pressing efficiency.

[0132] In some embodiments, at least one of the pressing plate 420 and the connecting structure 410 is provided with a heating assembly, which can include a heating plate, an electric heating wire, an electric heating sheet, etc. In the case where the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30, the heating assembly is used to heat the adhesive layer, and heat conduction, heat convection, etc. can be used for heat transfer. In the case where heat convection is used for heat transfer, corresponding holes, notches, etc. can be provided on the corresponding pressing plate 420, connecting structure 410 and support plate 30, or the edges of the heating assembly and the adhesive layer are exposed to the air, so as to achieve heat convection.

[0133] In this embodiment, the heating assembly heats the adhesive layer of the support plate 30, thereby facilitating to improve the bonding quality of the adhesive layer and the battery monomer 221, and thereby facilitating to further improve the connection stability of the support plate 30 and the battery monomer 221. For example, as the ambient temperature decreases, the bonding effect of the adhesive layer of the pressed support plate 30 decreases more; especially in the case of low temperature, the bonding effect will be greatly reduced. For example, in the above embodiment, the bonding effect of the adhesive layer of the support plate 30 is good at about 10 degrees or above; under the condition of lower temperature, the heating assembly can be heated at a temperature of about 25 degrees, so that the adhesive layer of the support plate 30 has a temperature environment of about 10 degrees for bonding operation.

[0134] In some embodiments, referring to Figure 9 , the first connecting body 411 is provided with a first electric conductor 4111, and the second connecting body 412 is provided with a second electric conductor 4121; the first electric conductor 4111 and the second electric conductor 4121 are correspondingly arranged in position, for example, in Figure 10 , the first electric conductor 4111 and the second electric conductor 4121 are arranged opposite to each other, so as to abut against each other in the case where the first connecting body 411 moves towards the second connecting body 412.

[0135] In addition, the first electric conductor 4111 and the second electric conductor 4121 are connected on the same electrically conductive loop, which can be formed by a wire; in addition, the electrically conductive loop also has a power supply 414 and a signal generating device, which can be understood as a device capable of emitting a signal. In the case where the first electric conductor 4111 and the second electric conductor 4121 are relatively moved to abut against each other, the signal generating device emits an abutting signal, wherein the first electric conductor 4111 and the second electric conductor 4121 can be understood as playing the role of a contact switch.

[0136] Referring to Figure 10 , wherein Figure 11The first connector 411 in the embodiment is shown in a top view, and the first connector 411 can have a receiving groove 416, which can be formed by machining, integrated during injection molding, or the like. The power supply 414 and the signal generating device are respectively received in the receiving groove 416.

[0137] In some embodiments, referring to Figure 11 The pressing device 400 can further include a cover plate 430 connected with the first connector 411 and at least partially covering the receiving groove 416, for example, connected by fasteners such as screws, or connected by adhesion, clamping, or the like.

[0138] In the embodiment, the power supply 414 and the signal generating device are respectively received in the receiving groove 416, which is conducive to improving the compactness of the pressing device 400. In addition, the cover plate 430 at least partially covers the receiving groove 416, which is conducive to avoiding accidental falling of the power supply 414 and the signal generating device, and also conducive to avoiding failure of the power supply 414 and the signal generating device caused by dust pollution, object impact, and other foreign matter interference phenomena.

[0139] In some embodiments, referring to Figure 10 Among them Figure 12 The circuit connection schematic diagram of the signal generating device in the embodiment is shown, and the signal generating device can include at least one of a wireless signal transmitter 4151, a buzzer 4152, and an indicator light 4153, wherein the wireless signal transmitter 4151 can include a Bluetooth transmitter or the like.

[0140] In the embodiment, the wireless signal transmitter 4151, the buzzer 4152, and the indicator light 4153 can stably emit signals, thereby being conducive to improving the use stability of the pressing device 400. For example, in use, as the elastic deformation amount of the elastic assembly increases, when the pressure requirement is reached, the first conductive body 4111 and the second conductive body 4121 can be connected as a touch switch, at which time the indicator light 4153 can be made to flicker for 3 seconds, and the wireless signal transmitter 4151 can be made to transmit a signal to the corresponding production system, thereby being conducive to releasing the confirmation of the pressing process operation on the production system. Therefore, it can be seen that the embodiment is conducive to ensuring that the workpiece pressure meets the preset assembly requirement, and is conducive to preventing missing assembly, device abnormalities (for example, the first conductive body 4111 and the second conductive body 4121 cannot be abutted due to the elastic assembly being stuck), and the like.

[0141] As can be seen from the above description, the pressing device 400 in the above embodiment can correspond the abutment position of the first conductive body 4111 and the second conductive body 4121 to the preset pressing degree, and can prompt the pressing to be in place through the abutment signal emitted by the signal generating device.

[0142] Referring toFigure 12 Figures 4 to 12In an embodiment, the pressing device 400 is used to press the support plate 30 between the two electrode terminals 227 of the battery monomer 221, the support plate 30 is used to connect the bus bar; the support plate 30 comprises an adhesive layer, the adhesive layer is bonded with the battery monomer 221; the pressing device 400 comprises a connecting structure 410 and a pressing plate 420, the connecting structure 410 is used to connect the force applying body; the pressing plate 420 is detachably connected with the connecting structure 410, and the plate surface of the pressing plate 420 is used to abut against the plate surface of the support plate 30. The connecting structure 410 is provided with a first magnetic assembly, and the pressing plate 420 is provided with a second magnetic assembly; the first magnetic assembly and the second magnetic assembly are magnetically attracted to each other, so that the pressing plate 420 abuts against the connecting structure 410. The first magnetic assembly comprises at least two first magnetic bodies, which are projected along the thickness direction of the pressing plate 420 and are arranged at intervals; the second magnetic assembly comprises at least two second magnetic bodies 423, which are projected along the thickness direction of the pressing plate 420 and are arranged at intervals; the first magnetic body and the second magnetic body 423 are one-to-one corresponding in position and are magnetically attracted to each other, so that the pressing plate 420 abuts against the connecting structure 410. The magnetic permeability of the connecting structure 410 is less than the magnetic permeability of the first magnetic assembly, and the magnetic permeability of the pressing plate 420 is less than the magnetic permeability of the second magnetic assembly. The connecting structure 410 comprises a first connecting body 411, a second connecting body 412 and an elastic assembly 413, two ends of the elastic assembly 413 are connected with the first connecting body 411 and the second connecting body 412 respectively; the first connecting body 411 is used to connect the force applying body, the second connecting body 412 is detachably connected with the pressing plate 420; in the case that the first connecting body 411 moves towards the second connecting body 412, the elastic assembly 413 is used to relatively move the second connecting body 412 away from the first connecting body 411. The first connecting body 411 is provided with a first conductive body 4111, and the second connecting body 412 is provided with a second conductive body 4121; the first conductive body 4111 and the second conductive body 4121 are arranged in position correspondence to abut against each other in the case that the first connecting body 411 moves towards the second connecting body 412; the first conductive body 4111 and the second conductive body 4121 are used to be connected on the same conductive loop, and the conductive loop further has a power supply 414 and a signal generating device; in the case that the first conductive body 4111 and the second conductive body 4121 relatively move to abut against each other, the signal generating device sends an abutting signal. The signal generating device comprises at least one of a wireless signal transmitter 4151, a buzzer 4152 and an indicator light 4153; the first connecting body 411 has a containing groove 416, and the power supply 414 and the signal generating device are contained in the containing groove 416; the pressing device 400 further comprises a cover plate 430, the cover plate 430 is connected with the first connecting body 411 and at least partially covers the containing groove 416.The elastic assembly 413 comprises a spring and a guide column, a first end of the guide column is fixedly connected with a first one of the first connecting body 411 and the second connecting body 412, a second one of the first connecting body 411 and the second connecting body 412 is provided with a connecting hole, a second end of the guide column extends into the connecting hole, the spring is sleeved outside the guide column, two ends of the spring are connected with the first connecting body 411 and the second connecting body 412 respectively, and the spring is used for moving the second connecting body 412 away from the first connecting body 411 in the case that the first connecting body 411 moves towards the second connecting body 412. The pressing plate 420 comprises a connecting layer 421 and an abutting layer 422, the connecting layer 421 is detachably connected with the connecting structure 410, the abutting layer 422 is connected to a side of the connecting layer 421 away from the connecting structure 410, the hardness of the abutting layer 422 is less than that of the connecting layer 421, and a surface of the abutting layer 422 away from the connecting layer 421 is used for abutting against the plate surface of the support plate 30. The plate surface of the pressing plate 420 away from the connecting structure 410 is provided with two first recesses 424, the two first recesses 424 are used for accommodating two electrode terminals 227 of the same battery monomer 221 respectively, the first recess 424 has a first side wall section 425, and the first side wall section 425 is towards the second recess 424; the second recess 424 has a second side wall section 426, and the second side wall section 426 is towards the first recess 424; the first side wall section 425 is used for abutting against a side wall of the first electrode terminal 227 of the battery monomer 221, and the second side wall section 426 is used for abutting against a side wall of the second electrode terminal 227 of the battery monomer 221. In the case that the first side wall section 425 and the second side wall section 426 abut against the electrode terminals 227 respectively and the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30, the wall surface of the first recess 424 towards the connecting structure 410 is relatively arranged in position with the top surface of the electrode terminal 227, and the wall surface of the first recess 424 towards the connecting structure 410 is used for moving to abut against the top surface of the electrode terminal 227. The plate surface of the pressing plate 420 away from the connecting structure 410 is provided with two second recesses 427, and the second recess 427 is used for accommodating the positioning pin 31 on the support plate 30. On the plate surface of the pressing plate 420, the two second recesses 427 are centrally symmetrical based on a midpoint of a connecting straight line between the two first recesses 424.In the case where the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30, the length direction of the pressing plate 420 is parallel to the arrangement direction between the two electrode terminals 227 of the battery monomer 221; the two ends in the length direction of the pressing plate 420 are located outside the contour of the connecting structure 410 in the projection along the thickness direction of the pressing plate 420; at least one of the pressing plate 420 and the connecting structure 410 is provided with a heating assembly, which is used to heat the bonding layer in the case where the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30; the pressing device 400 further comprises a handle 440 connected with the connecting structure 410; the force applying body comprises the hand of a user, and the handle 440 is used for the hand of the user to hold and apply force; the pressing device 400 further comprises a marking body 451 fixedly connected with at least one of the connecting structure 410 and the pressing plate 420; in the case where the plate surface of the pressing plate 420 abuts against the plate surface of the support plate 30, the marking body 451 abuts against at least one of the support plate 30 and the battery monomer 221 to form a working mark. The pressing device 400 further comprises a cap 452 used to connect one end of the marking body 451 away from the connecting structure 410; the side wall of the pressing plate 420 is provided with a penetrating structure 428 penetrating through the pressing plate 420 along the thickness direction of the pressing plate 420; the marking body 451 is fixedly connected with the connecting structure 410, and the marking body 451 is used to abut against at least one of the support plate 30 and the battery monomer 221 through the penetrating structure 428.

[0143] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the technical concept of the present application, and the contents of the present application and the drawings are included in the patent protection scope of the present application.

Claims

1. A pressing device characterized by comprising: The pressing device is used for pressing a support plate between two electrode terminals of a battery monomer, and the support plate is used for connecting bus bars; the support plate comprises an adhesive layer which is adhered to the battery monomer; The pressing device comprises a connecting structure and a pressing plate, the connecting structure is used for connecting a force applying body; the pressing plate is detachably connected with the connecting structure, and a plate surface of the pressing plate is used for abutting against a plate surface of the support plate.

2. The pressing apparatus according to claim 1, wherein The connecting structure is provided with a first magnetic assembly, and the pressing plate is provided with a second magnetic assembly; the first magnetic assembly and the second magnetic assembly are magnetically attracted to each other, so that the pressing plate abuts against the connecting structure.

3. The pressing apparatus according to claim 2, wherein The first magnetic assembly comprises at least two first magnetic bodies which are arranged at intervals along a thickness direction of the pressing plate; The second magnetic assembly comprises at least two second magnetic bodies which are arranged at intervals along a thickness direction of the pressing plate; the first magnetic bodies and the second magnetic bodies are correspondingly magnetically attracted to each other in position, so that the pressing plate abuts against the connecting structure.

4. Pressing device according to claim 2 or 3, characterized in that The magnetic permeability of the connecting structure is smaller than the magnetic permeability of the first magnetic assembly, and the magnetic permeability of the pressing plate is smaller than the magnetic permeability of the second magnetic assembly.

5. The pressing apparatus according to any one of claims 1 to 3, wherein The connecting structure comprises a first connecting body, a second connecting body and an elastic assembly, two ends of the elastic assembly are connected with the first connecting body and the second connecting body respectively; the first connecting body is used for connecting the force applying body, and the second connecting body is detachably connected with the pressing plate; In the case that the first connecting body moves towards the second connecting body, the elastic assembly is used for relatively moving the second connecting body away from the first connecting body.

6. The pressing apparatus according to claim 5, wherein The first connecting body is provided with a first electrically conductive body, and the second connecting body is provided with a second electrically conductive body; the first electrically conductive body and the second electrically conductive body are correspondingly arranged in position to abut against each other in the case that the first connecting body moves towards the second connecting body; The first electrically conductive body and the second electrically conductive body are connected on the same electrically conductive loop, and the electrically conductive loop further has a power supply and a signal generating device; in the case that the first electrically conductive body and the second electrically conductive body relatively move to abut against each other, the signal generating device emits an abutting signal.

7. The pressing apparatus according to claim 6, wherein The signal generating device comprises at least one of a wireless signal transmitter, a buzzer and an indicator light; and / or, The first connecting body has a containing groove, and the power supply and the signal generating device are contained in the containing groove respectively; the pressing device further comprises a cover plate which is connected with the first connecting body and at least partially covers the containing groove.

8. The pressing apparatus according to claim 5, wherein The elastic assembly comprises a spring and a guide column, a first end of the guide column is fixedly connected with a first one of the first connecting body and the second connecting body; a second one of the first connecting body and the second connecting body is provided with a connecting hole, and a second end of the guide column extends into the connecting hole; The spring is arranged outside the guide column, and two ends of the spring are connected to the first connecting body and the second connecting body respectively; in the case that the first connecting body moves towards the second connecting body, the spring is used to move the second connecting body away from the first connecting body.

9. The pressing apparatus according to any one of claims 1 to 3, wherein The pressing plate comprises an abutment layer and a contact layer, the abutment layer is detachably connected with the connecting structure; the contact layer is connected to one side of the abutment layer away from the connecting structure, the hardness of the contact layer is less than that of the abutment layer, and the surface of the contact layer away from the abutment layer is used to abut the plate surface of the support plate.

10. The pressing apparatus according to any one of claims 1 to 3, wherein The plate surface of the pressing plate away from the connecting structure is provided with two first recesses, and the two first recesses are used to accommodate two electrode terminals of one battery monomer respectively; The first first recess has a first side wall section, and the first side wall section faces the second first recess; the second first recess has a second side wall section, and the second side wall section faces the first first recess; The first side wall section is used to abut the side wall of the first electrode terminal of the battery monomer, and the second side wall section is used to abut the side wall of the second electrode terminal of the battery monomer.

11. The pressing apparatus according to claim 10, wherein In the case that the first side wall section and the second side wall section abut the electrode terminals respectively and the plate surface of the pressing plate abuts the plate surface of the support plate, the wall surface of the first recess facing the connecting structure is arranged opposite to the top surface of the electrode terminal in position, and the wall surface of the first recess facing the connecting structure is used to move to abut the top surface of the electrode terminal.

12. The pressing apparatus according to any one of claims 1 to 3, wherein The plate surface of the pressing plate away from the connecting structure is provided with a second recess, and the second recess is used to accommodate the positioning pin on the support plate.

13. The pressing apparatus according to claim 10, wherein The plate surface of the pressing plate away from the connecting structure is provided with two second recesses, and the second recesses are used to accommodate the positioning pins on the support plate; On the plate surface of the pressing plate, two second recesses are centrally symmetrical based on the midpoint of the connecting straight line between the two first recesses.

14. The pressing apparatus according to any one of claims 1 to 3, wherein In the case that the plate surface of the pressing plate abuts the plate surface of the support plate, the length direction of the pressing plate is parallel to the arrangement direction between the two electrode terminals of the battery monomer; In the projection along the thickness direction of the pressing plate, two ends in the length direction of the pressing plate are respectively located outside the contour of the connecting structure; and / or, At least one of the pressing plate and the connecting structure is provided with a heating assembly, and the heating assembly is used to heat the adhesive layer in the case that the plate surface of the pressing plate abuts the plate surface of the support plate; and / or, The pressing device further comprises a handle connected with the connecting structure; the force applying body comprises the hand of a user, and the handle is used for the hand of the user to hold and apply force; and / or, The pressing device further comprises a marking body fixedly connected with at least one of the connecting structure and the pressing plate; in the case that the plate surface of the pressing plate abuts the plate surface of the support plate, the marking body abuts at least one of the support plate and the battery monomer to form an operation mark.

15. The pressing apparatus according to claim 14, wherein The pressing device further comprises a cap, which is used to connect one end of the marker body away from the connecting structure; and / or, A side wall of the pressing plate is provided with a penetrating structure penetrating the pressing plate in a thickness direction of the pressing plate; the marker body is fixedly connected with the connecting structure, and the marker body is used to abut against at least one of the support plate and the battery monomer by penetrating the penetrating structure.

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