Battery assembly auxiliary mechanism

Abstract

The battery assembly auxiliary mechanism comprises a base, a first blocking module and a second blocking module, and the base is provided with an assembly part used for arranging a top cover; the first blocking module and the second blocking module are both arranged on the base, the first blocking module is located on one side of the assembling part and used for blocking the first shell plate, and the second blocking module is located on the other side of the assembling part and used for blocking the third shell plate.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage, and in particular to a battery assembly auxiliary mechanism. Background Art

[0002] When the battery is produced, the electrode assembly and the like are first loaded into the interior of the battery case, and then the top cover is assembled to the battery case to seal the battery case. During the assembly of the top cover and the battery case, it is necessary to use a clamp to clamp the shell plates on the opposite sides of the battery case to ensure the assembly effect. However, since the circumference of the cross-section of the battery case is slightly longer than the circumference of the top cover, when the shell plates on the opposite sides of the battery case are subjected to pressure from the clamp, the shell plates on the opposite sides of the battery case in the other direction will be deformed due to the surplus, affecting the subsequent assembly between the top cover and the battery case. Summary of the invention

[0003] Based on this, it is necessary to provide a battery assembly auxiliary mechanism to address the problem that in traditional technology, the shell plates on the opposite sides of the battery shell are subjected to pressure from the clamp, causing the shell plates on the opposite sides of the other direction to deform, thereby affecting the assembly effect between the battery shell and the top cover.

[0004] The technical solution is as follows:

[0005] One embodiment provides a battery assembly auxiliary mechanism, the battery comprising a first shell plate, a second shell plate, a third shell plate, a fourth shell plate and a top cover, the first shell plate, the second shell plate, the third shell plate and the fourth shell plate are sequentially connected and surrounded to form a side shell, the second shell plate and the fourth shell plate are both used for clamping by a clamp, the side shell can be assembled with the top cover, and the battery assembly auxiliary mechanism comprises:

[0006] a base, the base being provided with an assembly portion for arranging the top cover; and

[0007] A first blocking module and a second blocking module, wherein the first blocking module and the second blocking module are both arranged on the base, the first blocking module is located at one side of the assembly portion and is used to block the first shell plate, and the second blocking module is located at the other side of the assembly portion and is used to block the third shell plate.

[0008] The above-mentioned battery assembly auxiliary mechanism, when it is necessary to assemble the top cover to the side shell body, first sets the top cover on the assembly part of the base, and then uses the clamp to clamp the second shell plate and the fourth shell plate, so that the side edge of the second shell plate close to the top cover and the side edge of the fourth shell plate close to the top cover can be respectively attached to the opposite sides of the top cover, thereby facilitating the connection of the second shell plate and the fourth shell plate to the opposite sides of the top cover respectively; under the pressure of the clamp, the first shell plate and the third shell plate will be deformed, and the first blocking module and the second blocking module are used to block the first shell plate and the third shell plate respectively, which can effectively reduce the deformation of the first shell plate and the third shell plate, and ensure that the first shell plate and the third shell plate can be attached to the top cover, so as to facilitate the subsequent assembly between the first shell plate and the third shell plate and the top cover; compared with the traditional technology, the above-mentioned battery assembly auxiliary mechanism can prevent the first shell plate and the third shell plate of the side shell body from being deformed during the assembly process, and ensure the assembly effect between the top cover and the side shell body.

[0009] In one embodiment, the first blocking module includes a first driving member and a first blocking member, the first driving member is drivingly connected to the first blocking member, the first driving member is used to drive the first blocking member to reciprocate along the first direction, and the first blocking member is used to block or release the first shell plate, and the second blocking module includes a second driving member and a second blocking member, the second driving member is drivingly connected to the second blocking member, the second driving member is used to drive the second blocking member to reciprocate along the first direction, and the second blocking member is used to block or release the third shell plate.

[0010] The first driving member can drive the first blocking member to move back and forth along the first direction so that the first blocking member can block or release the first shell plate, and the second driving member can drive the second blocking member to move back and forth along the first direction so that the second blocking member can block or release the third shell plate. While facilitating the removal and placement of the side shell, it is also possible to control the pressure applied by the first blocking member to the first shell plate and the pressure applied by the second blocking member to the third shell plate, ensuring that the first shell plate and the third shell plate can effectively abut against the two side edges of the top cover; in addition, the first blocking member and the second blocking member can also block batteries of different sizes by moving, thereby ensuring the blocking reliability and improving the applicability of the battery assembly auxiliary mechanism.

[0011] In one embodiment, the first driving member includes a first driving rod and a first driving portion, one end of the first driving rod is arranged at the first driving portion and parallel to the first direction, the other end of the first driving rod is connected to the first blocking member, and the first driving portion can drive the first driving rod to reciprocate along its own axial direction, and the second driving member includes a second driving rod and a second driving portion, one end of the second driving member is arranged at the second driving portion and parallel to the first direction, the other end of the second driving rod is connected to the second blocking member, and the second driving portion can drive the second driving rod to reciprocate along its own axial direction.

[0012] The first driving rod can reciprocate along its own axial direction when driven by the first driving unit, thereby driving the first blocking member to reciprocate so that the first blocking member can block or release the first shell plate. The second driving rod can reciprocate along its own axial direction when driven by the second driving unit, thereby driving the second blocking member to reciprocate so that the second blocking member can block or release the first shell plate. The driving process is reliable and the implementation cost is low.

[0013] In one embodiment, the first blocking member includes a first mounting seat and a first pressure plate, the first mounting seat is connected to the first driving member, and a direction perpendicular to the first direction is set as the second direction, one side of the first pressure plate is arranged on the first mounting seat and can reciprocate along the second direction, and the other side of the first pressure plate is used to block or release the first shell plate, and the second blocking member includes a second mounting seat and a second pressure plate, the second mounting seat is connected to the second driving member, one side of the second pressure plate is arranged on the second mounting seat and can reciprocate along the second direction, and the other side of the second pressure plate is used to block or release the third shell plate.

[0014] The side of the first pressure plate away from the first mounting seat can be in contact with the first shell plate and block it to prevent the first shell plate from being deformed, and the side of the second pressure plate away from the second mounting seat can be in contact with the third shell plate and block it to prevent the third shell plate from being deformed; the first pressure plate can reciprocate along the second direction to adjust the pressing position of the first pressure plate on the first shell plate, and the second pressure plate can reciprocate along the second direction to adjust the pressing position of the second pressure plate on the third shell plate, thereby improving the flexibility and applicability of the battery assembly auxiliary mechanism.

[0015] In one of the embodiments, the first blocking module also includes a first positioning member, the first mounting seat is provided with a first positioning hole, the first pressure plate is provided with a first through hole, the radial direction of the first through hole is extended along the second direction, the first positioning member can be passed through the first through hole and plugged into the first positioning hole, and the second blocking module also includes a second positioning member, the second mounting seat is provided with a second positioning hole, the second pressure plate is provided with a second through hole, the radial direction of the second through hole is extended along the second direction, the second positioning member can be passed through the second through hole and plugged into the second positioning hole.

[0016] The first positioning member is sequentially inserted into the first through hole and the first positioning hole, and the radial direction of the first through hole is extended along the second direction so that the first pressure plate can reciprocate along the second direction. The second positioning member is sequentially inserted into the second through hole and the second positioning hole, and the radial direction of the second through hole is extended along the second direction so that the second pressure plate can reciprocate along the second direction. The movement mode of the first pressure plate and the second pressure plate is reliable and stable, and the implementation cost is low.

[0017] In one embodiment, the first positioning member is provided with a first threaded portion, the hole wall of the first positioning hole is provided with a first threaded matching portion, the first threaded portion is screwed together with the first threaded matching portion, the second positioning member is provided with a second threaded portion, the hole wall of the second positioning hole is provided with a second threaded matching portion, the second threaded portion is screwed together with the second threaded matching portion.

[0018] The first positioning member is sequentially passed through the first through hole and the first positioning hole, so that the first threaded portion is screwed with the first threaded matching portion, thereby realizing the installation cooperation between the first positioning member and the first positioning hole; the second positioning member is sequentially passed through the second through hole and the second positioning hole, so that the second threaded portion is screwed with the second threaded matching portion, thereby realizing the installation cooperation between the second positioning member and the second positioning hole. The installation process is convenient and the installation cost is low.

[0019] In one embodiment, the battery assembly auxiliary mechanism further includes a first stopper, which is disposed on the base and located on a side of the assembly portion away from the second blocking module, and a height of the assembly portion protruding from the base is set to be a first height, and a height of the first stopper protruding from the base is set to be a second height, and the second height is greater than the first height; or / and,

[0020] The battery assembly auxiliary mechanism also includes a second stopper, which is arranged on the base and located on the side of the assembly part away from the first blocking module. The height of the assembly part protruding from the base is set to be a first height, and the height of the second stopper protruding from the base is set to be a third height, and the third height is greater than the first height.

[0021] The first stopper is arranged to protrude from the base, and the height of the first stopper protruding from the base is greater than the height of the assembly part protruding from the base, so that when the top cover arranged on the assembly part and the side shell are laser welded, the first stopper can stop the welding laser to prevent the welding laser from causing harm to the equipment or the staff. The second stopper is arranged to protrude from the base, and the height of the second stopper protruding from the base is greater than the height of the assembly part protruding from the base, so that when the top cover arranged on the assembly part and the side shell are laser welded, the second stopper can stop the welding laser to prevent the welding laser from causing harm to the equipment or the staff.

[0022] In one of the embodiments, the battery assembly auxiliary mechanism further includes a limiter, which is disposed on at least one of the base, the first blocking module and the second blocking module, and is used to limit the side shell from moving along the third direction.

[0023] When the side shell is loaded from the third direction, the limiting member can limit the movement of the side shell along the third direction to roughly position the loaded side shell, thereby facilitating the subsequent assembly between the side shell and the top cover.

[0024] In one of the embodiments, the limiting member is provided with a limiting step, and the limiting step is used to be arranged toward the side shell and abut against the side shell.

[0025] The limiting step can not only realize the rough positioning of the side shell after loading, but also prevent the side shell from reciprocating along the first direction, thereby further improving the limiting effect.

[0026] In one embodiment, the battery further includes a bottom plate, which is disposed on a side of the side shell away from the top cover, and the battery assembly auxiliary mechanism further includes a pressing module, which is disposed on the base and is used to press or release the bottom plate.

[0027] The pressing down module can block the bottom plate to improve the tightness between the side shell and the top cover, so that the side shell and the top cover are kept in close fit during the assembly process, ensuring the overall assembly effect of the battery.

[0028] In one embodiment, the pressing module includes a third driving member and a third blocking member, the third driving member is arranged on the first blocking module and is drivingly connected to the third blocking member, and the third driving member is used to drive the third blocking member to press or release the bottom plate; or / and,

[0029] The pressing module comprises a fourth driving member and a fourth blocking member. The fourth driving member is arranged on the second blocking module and is drivingly connected to the fourth blocking member. The fourth driving member is used to drive the fourth blocking member to press or release the bottom plate.

[0030] The third driving member can drive the third blocking member to block or release the bottom plate. When the third blocking member blocks the bottom plate, the side shell and the top cover are kept in close contact during the assembly process to ensure the overall assembly effect of the battery. When the third blocking member releases the bottom plate, it is convenient to take and place the side shell. The fourth driving member can drive the fourth blocking member to block or release the bottom plate. When the fourth blocking member blocks the bottom plate, the side shell and the top cover are kept in close contact during the assembly process to ensure the overall assembly effect of the battery. When the fourth blocking member releases the bottom plate, it is convenient to take and place the side shell.

[0031] In one embodiment, the assembly portion is provided with an avoidance hole, and the avoidance hole is used to avoid the pole; or / and,

[0032] The assembly portion is provided with an avoidance groove, and the avoidance groove is used to avoid the reinforcing rib.

[0033] The avoidance hole on the assembly part can avoid the pole on the top cover, preventing the top cover and the side shell from squeezing the pole to damage the pole during the assembly process. The avoidance groove on the assembly part can avoid the reinforcing rib on the top cover, preventing the top cover and the side shell from squeezing the reinforcing rib to damage the reinforcing rib during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 Schematic diagram of the operation of the battery assembly auxiliary mechanism in one embodiment of the present application.

[0036] Figure 2 Schematic diagram of the structure of a battery assembly auxiliary mechanism in one embodiment of the present application.

[0037] Figure 3 This is a structural schematic diagram from another angle of the battery assembly auxiliary mechanism in one embodiment of the present application.

[0038] Figure 4 It is a rear view of a battery assembly auxiliary mechanism in one embodiment of the present application.

[0039] Figure 5 for Figure 4 A partial enlarged view of point D in the middle.

[0040] Figure 6 for Figure 4 A partial enlarged view of point E in the middle.

[0041] Figure 7Schematic diagram of the structure of the first blocking module or the second blocking module in one embodiment of the present application.

[0042] Figure 8 It is a structural schematic diagram of the first blocking module or the second blocking module from another angle in one embodiment of the present application.

[0043] Fig. 9 Schematic diagram of the structure of the first stopper or the second stopper in one embodiment of the present application.

[0044] Fig.10 Schematic diagram of the structure of a battery in one embodiment of the present application.

[0045] Notes on the attached drawings:

[0046] 100, battery; 110, side shell; 111, first shell plate; 112, third shell plate; 113, second shell plate; 114, fourth shell plate; 120, top cover; 121, first long side; 122, second long side; 123, first short side; 124, second short side; 125, reinforcing rib; 126, pole; 130, bottom plate; 200, base; 210, assembly part; 211, avoidance hole; 212, avoidance groove; 300, first blocking module; 310, first driving member; 311, first driving rod; 312, first driving part; 313, first guide rod; 320, first blocking member; 321, first mounting seat; 322, first pressing plate; 323, first through hole; 324, first fixed Position hole; 400, second blocking module; 410, second driving member; 411, second driving rod; 412, second driving part; 413, second guide rod; 420, second blocking member; 421, second mounting seat; 422, second pressure plate; 423, second through hole; 424, second positioning hole; 510, first stop member; 511, first stop step; 520, second stop member; 521, second stop step; 600, limiting member; 610, limiting step; 710, first mounting module; 720, second mounting module; 800, pressing module; 810, third driving member; 820, third blocking member; 830, fourth driving member; 840, fourth blocking member; 900, position detection module. DETAILED DESCRIPTION

[0047] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0048] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0049] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0051] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0053] See also Figure 1 and Fig.10 The battery 100 includes a first shell plate 111, a second shell plate 113, a third shell plate 112, a fourth shell plate 114 and a top cover 120. The first shell plate 111, the second shell plate 113, the third shell plate 112 and the fourth shell plate 114 are sequentially connected and surrounded to form a side shell 110. The second shell plate 113 and the fourth shell plate 114 are both used for clamping by a clamp, and the side shell 110 can be assembled with the top cover 120.

[0054] Specifically, the first shell plate 111 and the third shell plate 112 are arranged opposite to each other, and the second shell plate 113 and the fourth shell plate 114 are arranged opposite to each other. The first shell plate 111, the second shell plate 113, the third shell plate 112 and the fourth shell plate 114 are connected end to end to form a closed cylindrical structure with both ends penetrated, and this cylindrical structure is the side shell 110.

[0055] See also Figures 1 to 3 An embodiment of the present application provides a battery assembly auxiliary mechanism, including a base 200, a first blocking module 300 and a second blocking module 400. The base 200 is provided with an assembly portion 210 for setting a top cover 120; the first blocking module 300 and the second blocking module 400 are both arranged on the base 200, the first blocking module 300 is located on one side of the assembly portion 210 and is used to block the first shell plate 111, and the second blocking module 400 is located on the other side of the assembly portion 210 and is used to block the third shell plate 112.

[0056] The battery assembly auxiliary mechanism, when it is necessary to assemble the top cover 120 to the side housing 110, firstly sets the top cover 120 on the assembly portion 210 of the base 200, and then uses a clamp to clamp the second shell plate 113 and the fourth shell plate 114, so that one side edge of the second shell plate 113 close to the top cover 120 and one side edge of the fourth shell plate 114 close to the top cover 120 can be respectively attached to the opposite sides of the top cover 120, so as to facilitate the connection of the second shell plate 113 and the fourth shell plate 114 to the opposite sides of the top cover 120 respectively; under the pressure of the clamp, the first shell plate 111 and the third shell plate 112 will be deformed, through The first blocking module 300 and the second blocking module 400 respectively block the first shell plate 111 and the third shell plate 112, which can effectively reduce the deformation of the first shell plate 111 and the third shell plate 112, and ensure that the first shell plate 111 and the third shell plate 112 can fit the top cover 120, so as to facilitate the subsequent assembly between the first shell plate 111 and the third shell plate 112 and the top cover 120; compared with the traditional technology, the above-mentioned battery assembly auxiliary mechanism can prevent the first shell plate 111 and the third shell plate 112 of the side shell 110 from being deformed during the assembly process, and ensure the assembly effect between the top cover 120 and the side shell 110.

[0057] As an explanation, during the assembly process of the battery 100, a clamp is required to clamp the second shell plate 113 and the fourth shell plate 114 which are arranged opposite to each other. Specifically, the clamp includes a first clamping member, a second clamping member and a power member (not shown in the figure). The power member can provide power to the first clamping member and the second clamping member so that the first clamping member and the second clamping member can be close to or away from each other. The first clamping member can press the second shell plate 113 so that the second shell plate 113 can be attached to one side of the top cover 120, so as to facilitate the connection between the second shell plate 113 and the top cover 120. The second clamping member can press the fourth shell plate 114 so that the fourth shell plate 114 can be attached to the other side of the top cover 120, so as to facilitate the connection between the fourth shell plate 114 and the top cover 120. 0; however, during the production process, since the circumference of the cross section of the side shell 110 parallel to the first direction is slightly larger than the circumference of the top cover 120, when the clamp presses the second shell plate 113 and the fourth shell plate 114, the first shell plate 111 and the third shell plate 112 will have surplus and will be deformed outward away from each other, and cannot fit tightly with the top cover 120, affecting the assembly effect; in this embodiment, the first shell plate 111 and the third shell plate 112 are blocked by the first blocking module 300 and the second blocking module 400 respectively to reduce the deformation of the first shell plate 111 and the third shell plate 112, thereby ensuring that the first shell plate 111 and the third shell plate 112 can fit tightly with the top cover 120, thereby ensuring the assembly effect.

[0058] See also Figure 1 and Fig.10In one embodiment, the battery 100 is a long battery 100, the top cover 120 is a rectangular structure and includes a first long side 121, a second long side 122, a first short side 123 and a second short side 124, the first long side 121 is used to assemble with the second shell plate 113, the second long side 122 is used to assemble with the fourth shell plate 114, the first short side 123 is used to assemble with the first shell plate 111, and the second short side 124 is used to assemble with the third shell plate 112; when the clamp presses the second shell plate 113 and the fourth shell plate 114, the second shell plate 113 and the fourth shell plate 114 are deformed due to the extrusion, and then a force is generated on the first shell plate 111 and the third shell plate 112, so that the first shell plate 111 and the third shell plate 112 are deformed, so that the first shell plate 111 and the third shell plate 112 are deformed. A gap will be generated between the second short sides 124, resulting in a loose fit, which will affect subsequent assembly; the first shell plate 111 and the third shell plate 112 are blocked respectively by the first blocking module 300 and the second blocking module 400. When the deformation of the second shell plate 113 and the fourth shell plate 114 caused by extrusion exerts a force on the first shell plate 111 and the third shell plate 112, the extrusion force of the first blocking module 300 and the second blocking module 400 can prevent the first shell plate 111 and the third shell plate 112 from being deformed. In addition, the first blocking module 300 and the second blocking module 400 can respectively provide extrusion force to the first shell plate 111 and the third shell plate 112 toward the top cover 120, so that the first shell plate 111 and the third shell plate 112 can fit tightly with the top cover 120, thereby ensuring the subsequent assembly effect.

[0059] Specifically, the first blocking module 300 blocks the end of the first shell plate 111 close to the first short side 123, and the second blocking module 400 blocks the end of the third shell plate 112 close to the second short side 124 to prevent the end of the first shell plate 111 close to the first short side 123 and the end of the third shell plate 112 close to the second short side 124 from being deformed and affecting subsequent assembly.

[0060] Furthermore, the side shell 110 and the top cover 120 are connected by pressure welding or laser welding. The first blocking mechanism blocks the end of the first shell plate 111 close to the first short side 123 to eliminate the weld between the first short side 123 and the first shell plate 111. The second blocking mechanism blocks the end of the third shell plate 112 close to the second short side 124 to eliminate the weld between the second short side 124 and the third shell plate 112, thereby improving the welding effect between the first short side 123 and the first shell plate 111 and between the second short side 124 and the third shell plate 112.

[0061] See also Figure 7In one embodiment, the first blocking module 300 includes a first driving member 310 and a first blocking member 320, the first driving member 310 is drivingly connected to the first blocking member 320, the first driving member 310 is used to drive the first blocking member 320 to reciprocate along the first direction, and the first blocking member 320 is used to block or release the first shell plate 111, and the second blocking module 400 includes a second driving member 410 and a second blocking member 420, the second driving member 410 is drivingly connected to the second blocking member 420, the second driving member 410 is used to drive the second blocking member 420 to reciprocate along the first direction, and the second blocking member 420 is used to block or release the third shell plate 112.

[0062] The first driving member 310 can drive the first blocking member 320 to move back and forth along the first direction, so that the first blocking member 320 can block or release the first shell plate 111, and the second driving member 410 can drive the second blocking member 420 to move back and forth along the first direction, so that the second blocking member 420 can block or release the third shell plate 112. While facilitating the removal and placement of the side shell 110, it is also possible to control the pressure applied by the first blocking member 320 to the first shell plate 111 and the pressure applied by the second blocking member 420 to the third shell plate 112, ensuring that the first shell plate 111 and the third shell plate 112 can effectively abut against the two side edges of the top cover 120; in addition, the first blocking member 320 and the second blocking member 420 can also block batteries 100 of different sizes by moving, thereby ensuring the blocking reliability and improving the applicability of the battery assembly auxiliary mechanism.

[0063] As an explanation, the first direction in the above embodiment is the direction from the first blocking module 300 to the second blocking module 400 (ie Figure 1 direction in the A direction).

[0064] Furthermore, in one embodiment, the first blocking member 320 can not only block the first shell plate 111, but also press the first shell plate 111. The first blocking member 320 moves back and forth along the first direction driven by the first driving member 310 to adjust the pressing force of the first blocking member 320 on the first shell plate 111 to prevent the first shell plate 111 from being deformed; the second blocking member 420 is similar to the first blocking member 320. The second blocking member 420 can not only block the third shell plate 112, but also press the third shell plate 112. The second blocking member 420 moves back and forth along the first direction driven by the second driving member 410 to adjust the pressing force of the second blocking member 420 on the third shell plate 112 to prevent the third shell plate 112 from being deformed.

[0065] Optionally, the first driving member 310 and the second driving member 410 may be driven by a motor, or may be driven by a cylinder or an oil cylinder, etc., which is not specifically limited here.

[0066] See also Figure 7 In one embodiment, the first driving member 310 includes a first driving rod 311 and a first driving portion 312, one end of the first driving rod 311 is arranged at the first driving portion 312 and is arranged parallel to the first direction, the other end of the first driving rod 311 is connected to the first blocking member 320, and the first driving portion 312 can drive the first driving rod 311 to reciprocate along its own axial direction. The second driving member 410 includes a second driving rod 411 and a second driving portion 412, one end of the second driving member 410 is arranged at the second driving portion 412 and is arranged parallel to the first direction, the other end of the second driving rod 411 is connected to the second blocking member 420, and the second driving portion 412 can drive the second driving rod 411 to reciprocate along its own axial direction.

[0067] The first driving rod 311 can reciprocate along its own axial direction when driven by the first driving part 312, thereby driving the first blocking member 320 to reciprocate, so that the first blocking member 320 can block or release the first shell plate 111. The second driving rod 411 can reciprocate along its own axial direction when driven by the second driving part 412, thereby driving the second blocking member 420 to reciprocate, so that the second blocking member 420 can block or release the first shell plate 111. The driving process is reliable and the implementation cost is low.

[0068] Specifically, see Figure 7 The first driving part 312 includes a first cylinder, and one end of the first driving rod 311 away from the first blocking member 320 is inserted into the cylinder barrel of the first cylinder. The first driving rod 311 reciprocates along the depth direction of the cylinder barrel under the drive of the first cylinder; the second driving part 412 includes a second cylinder, and one end of the second driving rod 411 away from the second blocking member 420 is inserted into the cylinder barrel of the second cylinder. The second driving rod 411 reciprocates along the depth direction of the cylinder barrel under the drive of the second cylinder.

[0069] Furthermore, the first driving member 310 also includes a first guide rod 313 arranged parallel to the first driving rod 311, one end of the first guide rod 313 is inserted into the first driving part 312, and the other end of the first guide rod 313 is connected to the first blocking member 320. The first guide rod 313 can reciprocate along its own axial direction. When the first driving rod 311 moves under the drive of the first driving part 312, the first guide rod 313 also moves to improve the stroke stability and reliability of the first blocking member 320; the second driving member 410 also includes a second guide rod 413 arranged parallel to the second driving rod 411, similar to the first guide rod 313, which will not be repeated here.

[0070] See also Figure 7In one embodiment, the first blocking member 320 includes a first mounting seat 321 and a first pressure plate 322, the first mounting seat 321 is connected to the first driving member 310, and a direction perpendicular to the first direction is set as the second direction. One side of the first pressure plate 322 is arranged on the first mounting seat 321 and can reciprocate along the second direction. The other side of the first pressure plate 322 is used to block or release the first shell plate 111. The second blocking member 420 includes a second mounting seat 421 and a second pressure plate 422, the second mounting seat 421 is connected to the second driving member 410, one side of the second pressure plate 422 is arranged on the second mounting seat 421 and can reciprocate along the second direction. The other side of the second pressure plate 422 is used to block or release the third shell plate 112.

[0071] The side of the first pressure plate 322 away from the first mounting seat 321 can be in contact with the first shell plate 111 and block it to prevent the first shell plate 111 from being deformed, and the side of the second pressure plate 422 away from the second mounting seat 421 can be in contact with the third shell plate 112 and block it to prevent the third shell plate 112 from being deformed; the first pressure plate 322 can reciprocate along the second direction to adjust the pressing position of the first pressure plate 322 on the first shell plate 111, and the second pressure plate 422 can reciprocate along the second direction to adjust the pressing position of the second pressure plate 422 on the third shell plate 112, thereby improving the flexibility and applicability of the battery assembly auxiliary mechanism.

[0072] For explanation, the second direction in the above embodiment is a direction perpendicular to the plane where the base 200 is located (ie, the height direction of the battery 100, Figure 1 B direction in the figure).

[0073] Furthermore, by fine-tuning the positions of the first pressure plate 322 and the second pressure plate 422 to obtain the optimal position to prevent the first shell plate 111 and the third shell plate 112 from deforming, the blocking stability and reliability of the first pressure plate 322 and the second pressure plate 422 on the first shell plate 111 and the third shell plate 112 are ensured.

[0074] See also Figure 8 In one embodiment, the first blocking module 300 further includes a first positioning member (not shown in the figure), the first mounting seat 321 is provided with a first positioning hole 324, the first pressure plate 322 is provided with a first through hole 323, the radial direction of the first through hole 323 is extended along the second direction, the first positioning member can be passed through the first through hole 323 and plugged into the first positioning hole 324, the second blocking module 400 further includes a second positioning member (not shown in the figure), the second mounting seat 421 is provided with a second positioning hole 424, the second pressure plate 422 is provided with a second through hole 423, the radial direction of the second through hole 423 is extended along the second direction, the second positioning member can be passed through the second through hole 423 and plugged into the second positioning hole 424.

[0075] The first positioning member is sequentially inserted into the first through hole 323 and the first positioning hole 324, and the radial direction of the first through hole 323 is extended along the second direction so that the first pressure plate 322 can reciprocate along the second direction. The second positioning member is sequentially inserted into the second through hole 423 and the second positioning hole 424, and the radial direction of the second through hole 423 is extended along the second direction so that the second pressure plate 422 can reciprocate along the second direction. The movement mode of the first pressure plate 322 and the second pressure plate 422 is reliable and stable, and the implementation cost is low.

[0076] For further information, see Figure 8 There are at least two first through holes 323, and at least two first positioning holes 324 and first positioning members are provided and arranged one-to-one with the first through holes 323 to improve the movement stability and reliability of the first pressure plate 322; there are at least two second through holes 423, and at least two second positioning holes 424 and second positioning members are provided and arranged one-to-one with the second through holes 423 to improve the movement stability and reliability of the second pressure plate 422.

[0077] Optionally, the first positioning member and the second positioning member may be positioning pins or positioning bolts, etc., which are not specifically limited here.

[0078] See also Figure 8 In one embodiment, the first positioning member is provided with a first threaded portion, the hole wall of the first positioning hole 324 is provided with a first threaded matching portion, the first threaded portion is screwed together with the first threaded matching portion, the second positioning member is provided with a second threaded portion, the hole wall of the second positioning hole 424 is provided with a second threaded matching portion, the second threaded portion is screwed together with the second threaded matching portion.

[0079] The first positioning member is sequentially passed through the first through hole 323 and the first positioning hole 324 so that the first threaded portion is screwed with the first threaded matching portion, thereby realizing the installation cooperation between the first positioning member and the first positioning hole 324; the second positioning member is sequentially passed through the second through hole 423 and the second positioning hole 424 so that the second threaded portion is screwed with the second threaded matching portion, thereby realizing the installation cooperation between the second positioning member and the second positioning hole 424. The installation process is convenient and the installation cost is low.

[0080] Further, the first positioning member is a first bolt, and the first threaded portion is provided on the first screw rod of the first bolt, and the first screw rod is sequentially inserted into the first through hole 323 and the first positioning hole 324, so that the first threaded portion on the first screw rod and the first threaded matching portion on the hole wall of the first mounting through hole are threadedly connected, and the first pressure plate 322 is compressed and positioned by rotating and tightening the first bolt; the second positioning member is a second bolt, and the second threaded portion is provided on the second screw rod of the second bolt, and the second screw rod is sequentially inserted into the second through hole 423 and the second positioning hole 424, so that the second threaded portion on the second screw rod and the second threaded matching portion on the hole wall of the second mounting through hole are threadedly connected, and the second pressure plate 422 is compressed and positioned by rotating and tightening the second bolt.

[0081] See also Figures 1 to 6 In one embodiment, the battery assembly auxiliary mechanism further includes a first stopper 510, which is disposed on the base 200 and located on a side of the assembly portion 210 away from the second blocking module 400, and the height of the assembly portion 210 protruding from the base 200 is set to be a first height (i.e. Figure 5 H1 in the figure), the height of the first stopper 510 protruding from the base 200 is the second height (ie Figure 5 H2 in ), the second height is greater than the first height.

[0082] The first stopper 510 is protruding from the base 200, and the height of the first stopper 510 protruding from the base 200 is greater than the height of the assembly part 210 protruding from the base 200. In this way, when the top cover 120 set on the assembly part 210 and the side shell 110 are laser welded, the first stopper 510 can stop the welding laser to prevent the welding laser from causing harm to the equipment or staff.

[0083] By way of explanation, when laser welding is adopted between the top cover 120 and the side shell 110, the welding laser will irradiate the connection between the top cover 120 and the side shell 110 to realize the welding of the top cover 120 and the side shell 110. By setting the height of the first stopper 510 protruding from the base 200 to be greater than the height of the assembly part 210 protruding from the base 200, the welding laser at the welding position of the top cover 120 and the side shell 110 can be stopped to prevent the welding laser from being emitted and causing damage to other equipment or personnel.

[0084] As an embodiment that can be implemented simultaneously with the above embodiment, the battery assembly auxiliary mechanism further includes a second stopper 520, which is disposed on the base 200 and located on a side of the assembly portion 210 away from the first blocking module 300, and the height of the assembly portion 210 protruding from the base 200 is set to be a first height (i.e. Figure 6 The height of the second stopper 520 protruding from the base 200 is a third height (ie, Figure 6 H3 in ), the third height is greater than the first height.

[0085] The second stopper 520 is arranged to protrude from the base 200, and the height of the second stopper 520 protruding from the base 200 is greater than the height of the assembly part 210 protruding from the base 200. In this way, when the top cover 120 arranged on the assembly part 210 and the side shell 110 are laser welded, the second stopper 520 can stop the welding laser to prevent the welding laser from causing harm to the equipment or staff.

[0086] Specifically, the second height is about 5 mm greater than the first height, and the third height is about 5 mm greater than the first height, so that the first stopper 510 and the second stopper 520 can respectively achieve laser stopping on both sides of the assembly part 210, further improving the operating safety of the battery assembly auxiliary mechanism.

[0087] Furthermore, the first stop member 510 is provided with a first stop step 511, and the second stop member 520 is provided with a second stop step 521. The first stop step 511 and the second stop step 521 are both arranged toward the assembly portion 210, and there is a gap of 1.5mm-2.5mm between the first stop step 511 and the second stop step 521 and the side shell 110 to prevent the first stop member 510 and the second stop member 520 from causing pressure damage to the surface of the side shell 110; specifically, there is a gap of 2mm between the first stop step 511 and the second stop step 521 and the side shell 110.

[0088] Specifically, the first stopper 510 and the second stopper 520 are made of high temperature resistant materials such as copper to stop the laser that exceeds the battery 100 within the laser welding stroke.

[0089] See also Figures 2 to 4 In one embodiment, the battery assembly auxiliary mechanism further includes a limit member 600, which is disposed on at least one of the base 200, the first blocking module 300 and the second blocking module 400, and the limit member 600 is used to limit the movement of the side shell 110 along the third direction.

[0090] When the side shell 110 is loaded from the third direction, the limiter 600 can limit the movement of the side shell 110 along the third direction to roughly position the loaded side shell 110 to facilitate the subsequent assembly between the side shell 110 and the top cover 120.

[0091] As an explanation, the third direction in the above embodiment is a direction perpendicular to the first direction and the second direction (ie Figure 1 and Figure 2 C direction as shown).

[0092] See also Figures 1 to 3 In one embodiment, the battery assembly auxiliary mechanism further includes a first mounting module 710 and a second mounting module 720, both of which are disposed on the base 200, and the first mounting module 710 and the second mounting module 720 are respectively located on opposite sides of the assembly portion 210, the first blocking module 300 is disposed on the first mounting module 710, the second blocking module 400 is disposed on the second mounting module 720, and the limiting member 600 is disposed on at least one of the first mounting module 710 and the second mounting module 720, thereby making the structure of the battery assembly auxiliary mechanism more compact.

[0093] Specifically, see Figures 1 to 3 Two limiting members 600 are provided and are respectively arranged on the first mounting module 710 and the second mounting module 720 to improve the limiting effect of the opposite side housing 110.

[0094] See also Figure 1 In one embodiment, the battery assembly auxiliary mechanism also includes a position detection module 900, which is disposed in at least one of the first installation module 710 and the second installation module 720. The position detection module 900 is used to detect whether the side shell 110 is located between the first clamping mechanism and the second clamping mechanism, thereby ensuring that the subsequent action process of the battery assembly auxiliary mechanism can be performed only when the side shell 110 is between the first clamping mechanism and the second clamping mechanism.

[0095] Specifically, the position detection module 900 includes a photoelectric detection module, which can emit detection light to detect whether the side housing 110 exists between the first clamping mechanism and the second clamping mechanism.

[0096] See also Figures 1 to 3 In one embodiment, the limiting member 600 is provided with a limiting step 610 , and the limiting step 610 is used to be set toward the side housing 110 and abut against the side housing 110 .

[0097] The limiting step 610 can not only realize the rough positioning of the side shell 110 after loading, but also prevent the side shell 110 from reciprocating along the first direction, thereby further improving the limiting effect.

[0098] See also Figure 1 and Fig.10 In one embodiment, the battery 100 further includes a bottom plate 130 , which is disposed on a side of the side shell 110 away from the top cover 120 , and the battery assembly auxiliary mechanism further includes a pressing module 800 , which is disposed on the base 200 and is used to press or release the bottom plate 130 .

[0099] The pressing module 800 can block the bottom plate 130 to improve the tightness between the side shell 110 and the top cover 120, so that the side shell 110 and the top cover 120 are kept in close contact during the assembly process, ensuring the overall assembly effect of the battery 100.

[0100] See also Figures 2 to 3 In one embodiment, the pressing module 800 includes a third driving member 810 and a third blocking member 820. The third driving member 810 is disposed on the first blocking module 300 and is drivingly connected to the third blocking member 820. The third driving member 810 is used to drive the third blocking member 820 to press or release the bottom plate 130.

[0101] The third driving member 810 can drive the third blocking member 820 to block or release the bottom plate 130. When the third blocking member 820 blocks the bottom plate 130, the side shell 110 and the top cover 120 maintain a tight fit during the assembly process to ensure the overall assembly effect of the battery 100. When the third blocking member 820 releases the bottom plate 130, it is convenient to take and place the side shell 110.

[0102] As an embodiment that can be implemented simultaneously with the above-mentioned embodiments, the pressing module 800 includes a fourth driving member 830 and a fourth blocking member 840. The fourth driving member 830 is arranged on the second blocking module 400 and is drivingly connected to the fourth blocking member 840. The fourth driving member 830 is used to drive the fourth blocking member 840 to press or release the bottom plate 130.

[0103] The fourth driving member 830 can drive the fourth blocking member 840 to block or release the bottom plate 130. When the fourth blocking member 840 blocks the bottom plate 130, the side shell 110 and the top cover 120 maintain a tight fit during the assembly process to ensure the overall assembly effect of the battery 100. When the fourth blocking member 840 releases the bottom plate 130, it is convenient to take and place the side shell 110.

[0104] Optionally, the third driving member 810 and the fourth driving member 830 may be driven by a motor, or may be driven by a cylinder or an oil cylinder, etc., which is not specifically limited here.

[0105] See also Figure 2 In one embodiment, the assembly portion 210 is provided with an avoidance hole 211 , and the avoidance hole 211 is used to avoid the pole 126 .

[0106] The avoidance hole 211 on the assembly portion 210 can avoid the pole 126 on the top cover 120 , so as to prevent the top cover 120 and the side housing 110 from squeezing the pole 126 and damaging the pole 126 during the assembly process.

[0107] See also Figure 2As an embodiment that can be implemented simultaneously with the above-mentioned embodiment, the assembly portion 210 is provided with an avoidance groove 212 , and the avoidance groove 212 is used to avoid the reinforcing rib 125 .

[0108] The avoidance groove 212 on the assembly portion 210 can avoid the reinforcing rib 125 on the top cover 120 , so as to prevent the top cover 120 and the side housing 110 from squeezing the reinforcing rib 125 and damaging the reinforcing rib 125 during the assembly process.

[0109] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0110] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A battery assembly auxiliary mechanism, the battery comprising a first shell plate, a second shell plate, a third shell plate, a fourth shell plate and a top cover, the first shell plate, the second shell plate, the third shell plate and the fourth shell plate are sequentially connected and surrounded to form a side shell, the second shell plate and the fourth shell plate are both used for clamping by a clamp, the side shell can be assembled with the top cover, characterized in that: The battery assembly auxiliary mechanism comprises: a base, the base being provided with an assembly portion for arranging the top cover; and A first blocking module and a second blocking module, wherein the first blocking module and the second blocking module are both arranged on the base, the first blocking module is located at one side of the assembly portion and is used to block the first shell plate, and the second blocking module is located at the other side of the assembly portion and is used to block the third shell plate.

2. The battery assembly auxiliary mechanism according to claim 1, characterized in that: The first blocking module includes a first driving member and a first blocking member, the first driving member is drivingly connected to the first blocking member, the first driving member is used to drive the first blocking member to reciprocate along the first direction, and the first blocking member is used to block or release the first shell plate, and the second blocking module includes a second driving member and a second blocking member, the second driving member is drivingly connected to the second blocking member, the second driving member is used to drive the second blocking member to reciprocate along the first direction, and the second blocking member is used to block or release the third shell plate.

3. The battery assembly auxiliary mechanism according to claim 2, characterized in that: The first driving member includes a first driving rod and a first driving portion, one end of the first driving rod is arranged at the first driving portion and is arranged parallel to the first direction, the other end of the first driving rod is connected to the first blocking member, and the first driving portion can drive the first driving rod to reciprocate along its own axial direction, and the second driving member includes a second driving rod and a second driving portion, one end of the second driving member is arranged at the second driving portion and is arranged parallel to the first direction, the other end of the second driving rod is connected to the second blocking member, and the second driving portion can drive the second driving rod to reciprocate along its own axial direction.

4. The battery assembly auxiliary mechanism according to claim 2, characterized in that: The first blocking member includes a first mounting seat and a first pressure plate, the first mounting seat is connected to the first driving member, and a direction perpendicular to the first direction is set as a second direction, one side of the first pressure plate is arranged on the first mounting seat and can reciprocate along the second direction, and the other side of the first pressure plate is used to block or release the first shell plate, and the second blocking member includes a second mounting seat and a second pressure plate, the second mounting seat is connected to the second driving member, one side of the second pressure plate is arranged on the second mounting seat and can reciprocate along the second direction, and the other side of the second pressure plate is used to block or release the third shell plate.

5. The battery assembly auxiliary mechanism according to claim 4, characterized in that: The first blocking module also includes a first positioning member, the first mounting seat is provided with a first positioning hole, the first pressure plate is provided with a first through hole, the radial direction of the first through hole is extended along the second direction, the first positioning member can be passed through the first through hole and plugged into the first positioning hole, the second blocking module also includes a second positioning member, the second mounting seat is provided with a second positioning hole, the second pressure plate is provided with a second through hole, the radial direction of the second through hole is extended along the second direction, the second positioning member can be passed through the second through hole and plugged into the second positioning hole.

6. The battery assembly auxiliary mechanism according to claim 5, characterized in that: The first positioning member is provided with a first threaded portion, the hole wall of the first positioning hole is provided with a first threaded matching portion, the first threaded portion is screwed together with the first threaded matching portion, the second positioning member is provided with a second threaded portion, the hole wall of the second positioning hole is provided with a second threaded matching portion, the second threaded portion is screwed together with the second threaded matching portion.

7. The battery assembly auxiliary mechanism according to claim 1, characterized in that: The battery assembly auxiliary mechanism further includes a first stopper, which is disposed on the base and located on a side of the assembly portion away from the second blocking module, and the height of the assembly portion protruding from the base is set to be a first height, and the height of the first stopper protruding from the base is set to be a second height, and the second height is greater than the first height; or / and, The battery assembly auxiliary mechanism also includes a second stopper, which is arranged on the base and located on the side of the assembly part away from the first blocking module. The height of the assembly part protruding from the base is set to be a first height, and the height of the second stopper protruding from the base is set to be a third height, and the third height is greater than the first height.

8. The battery assembly auxiliary mechanism according to claim 1, characterized in that: The battery assembly auxiliary mechanism further includes a limiter, which is disposed on at least one of the base, the first blocking module, and the second blocking module, and is used to limit the side housing from moving along a third direction.

9. The battery assembly auxiliary mechanism according to claim 8, characterized in that: The limiting member is provided with a limiting step, and the limiting step is used to be arranged toward the side shell and abut against the side shell.

10. The battery assembly auxiliary mechanism according to claim 1, characterized in that: The battery further comprises a bottom plate, which is arranged on a side of the side shell away from the top cover. The battery assembly auxiliary mechanism further comprises a pressing module, which is arranged on the base and used to press or release the bottom plate.

11. The battery assembly auxiliary mechanism according to claim 10, characterized in that: The pressing module comprises a third driving member and a third blocking member, wherein the third driving member is arranged on the first blocking module and is drivingly connected to the third blocking member, and the third driving member is used to drive the third blocking member to press or release the bottom plate; or / and, The pressing module comprises a fourth driving member and a fourth blocking member. The fourth driving member is arranged on the second blocking module and is drivingly connected to the fourth blocking member. The fourth driving member is used to drive the fourth blocking member to press or release the bottom plate.

12. The battery assembly auxiliary mechanism according to claim 1, characterized in that: The assembly portion is provided with an avoidance hole, and the avoidance hole is used to avoid the pole; or / and, The assembly portion is provided with an avoidance groove, and the avoidance groove is used to avoid the reinforcing rib.

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