CN117798597A

CN117798597A - Battery module repair equipment

Info

Publication number: CN117798597A
Application number: CN202410237081.0A
Authority: CN
Inventors: 闫中明; 刘建; 徐桦; 孙有斌; 朱小龙; 孔娟
Original assignee: Jiangsu Zhongna Energy Technology Co ltd
Current assignee: Jiangsu Zhongna Energy Technology Co ltd
Priority date: 2024-03-01
Filing date: 2024-03-01
Publication date: 2024-04-02
Anticipated expiration: 2044-03-01
Also published as: CN117798597B

Abstract

The invention discloses a battery module repairing device, which belongs to the technical field of battery module repairing, and comprises: the bearing mechanism is used for bearing and fixing the battery module, and the battery module comprises a battery cell group and a circuit board arranged at the top of the battery cell group; the tooling plate is detachably covered on the upper plate surface of the circuit board; the battery cell group comprises a tab and tab welding parts penetrating to the upper side of the circuit board and bending to the upper surface of the circuit board, a plurality of limiting holes are formed in the tooling board in a penetrating mode along the direction perpendicular to the surface of the tooling board, the limiting holes are in one-to-one correspondence with the tab and/or the tab welding parts, and the tab and/or the tab welding part periphery are/is surrounded. By adopting the structure, the tooling plate can limit the cutting area of the battery module, so that the cutting route is more controllable, the battery cell group is prevented from being punctured, and the cutting operation is convenient.

Description

Battery module repair equipment

Technical Field

The invention relates to the technical field of battery module repair, in particular to battery module repair equipment.

Background

The soft-package battery module has the advantages of good safety, light weight, large capacity and the like, and is widely applied to the market. The soft-package battery module generally comprises a battery cell group and a circuit board electrically connected with the battery cell group, wherein the battery cell group is formed by arranging a plurality of battery cells in an array mode, the circuit board is arranged at the top of the battery cell group and provided with holes corresponding to lugs of the battery cells one by one, the lugs penetrate through the upper plate surface from the lower plate surface of the circuit board and are bent to the upper plate surface of the circuit board, and the circuit board and the battery cell group are guaranteed to be tightly connected. In addition, the parts of the lugs of the adjacent two battery cells above the circuit board are mutually welded to form lug welding parts so as to realize series-parallel connection among the battery cells.

When the battery module is repaired due to faults, a repairing person needs to cut the tab and/or tab welding part above the circuit board by adopting a cutting tool so as to detach the circuit board. Because the tab periphery that is located the circuit board top has no limit structure, the cutting route is uncontrollable, and the operation is inconvenient, easily fish tail reprocessor, and the proficiency requirement to reprocessor is higher, and when the cutting route takes place the skew, there is the condition of puncture electric core, produces the short circuit phenomenon of striking sparks easily, and the potential safety hazard is big.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The invention aims to provide a battery module repairing device which can limit a cutting area of a battery module and ensure the cutting reliability of a tab and a tab welding part.

The invention aims at realizing the following technical scheme: a battery module repair apparatus comprising:

the bearing mechanism is used for bearing and fixing the battery module, and the battery module comprises a battery cell group and a circuit board arranged at the top of the battery cell group;

the tooling plate is detachably covered on the upper plate surface of the circuit board;

the battery cell group comprises a tab and tab welding parts penetrating to the upper side of the circuit board and bending to the upper surface of the circuit board, a plurality of limiting holes are formed in the tooling board in a penetrating mode along the direction perpendicular to the surface of the tooling board, the limiting holes are in one-to-one correspondence with the tab and/or the tab welding parts, and the tab and/or the tab welding part periphery are/is surrounded.

Further, the limiting hole includes:

the first limiting holes are in one-to-one correspondence with the lugs, and the inner peripheral outline of each first limiting hole is identical with the outer peripheral outline of the lug, which is positioned on the upper plate surface of the circuit board;

the second limiting holes are in one-to-one correspondence with the lug welding parts, and the inner peripheral outline of each second limiting hole is identical with the outer peripheral outline of the lug welding part, which is positioned at the upper plate surface of the circuit board;

the inner wall of the first limiting hole is adjacent to the bending part of the tab, the inner wall of the second limiting hole is adjacent to the bending part of the tab welding part, and cutting seams are formed between the first limiting hole and the bending part of the tab and between the second limiting hole and the bending part of the tab welding part.

Further, the circuit board comprises an installation area for installing electric parts, the tool board is provided with an avoidance hole in a penetrating mode along the direction perpendicular to the board surface, and the avoidance hole corresponds to the installation area.

Further, the carrying mechanism includes:

the bearing frame is used for bearing the battery module;

the clamping assembly is arranged in the bearing frame and can move to a clamping state for clamping the battery module or a loosening state for loosening the battery module;

The first driving assembly is in transmission connection with the clamping assembly so as to drive the clamping assembly to move.

Further, the clamping assembly includes:

the mounting seats are fixedly connected with the bearing frame, the number of the mounting seats is two, and the mounting seats are oppositely arranged along the first horizontal direction;

the guide rod groups are two in number and are respectively arranged on two sides of the mounting seat in the second horizontal direction, each guide rod group comprises at least one guide rod fixed between the two mounting seats, and the axial direction of each guide rod is consistent with the first horizontal direction;

the fixed clamping plate is sleeved on the guide rod group and can adjust the position along the axial direction of the guide rod group;

the movable clamping plate is sleeved on the guide rod group, and the first driving assembly is suitable for driving the movable clamping plate to be close to or far away from the fixed clamping plate along the axial direction of the guide rod;

the first horizontal direction is perpendicular to the second horizontal direction, and the fixed clamping plate, the movable clamping plate and the guide rod group are matched to enclose a limiting space for horizontally limiting the battery module.

Further, the direction of getting of putting of battery module is vertical direction, the driving end of first drive assembly is connected with the support, the frock board is installed on the support, and is located battery module top, the frock board can be followed vertical direction and be close to or keep away from battery module, first drive assembly is suitable for the drive clamping assembly with frock board synchronous movement, and works as clamping assembly switches over to the clamping state, the frock board remove to with battery module's corresponding working position, works as first drive assembly drive clamping assembly switches over to when unclamping the state, the frock board remove to with battery module's projection on vertical direction does not coincide open position.

Further, the first driving assembly includes:

at least one bearing seat fixedly connected with the bearing frame;

the screw rod is arranged in the bearing seat and comprises a first rod part and a second rod part with opposite screw threads;

the number of the sliding blocks is two, and the sliding blocks are respectively sleeved on the first rod part and the second rod part;

the first hand wheel is fixedly connected with one end part of the screw rod;

the number of the brackets is two, the brackets are respectively and fixedly connected with different sliding blocks, the tooling plate is formed by combining a first plate body and a second plate body, the first plate body and the second plate body are respectively connected with different brackets, and the first plate body and the second plate body are driven by the first driving assembly to move oppositely to the working position or move back to the opening position.

Further, the taking and placing direction of the battery module is a horizontal direction, the tool plate is arranged above the battery module through a bracket, can be close to or far away from the battery module along the vertical direction, and corresponds to the battery module when the first driving assembly drives the clamping assembly to be switched to the clamping state.

Further, the repair apparatus includes:

an elastic assembly disposed between the tool plate and the bracket, the tool plate being downwardly movable in response to a vertically downward force and contacting the battery module, and upwardly returning to and separating from the battery module when the force is removed;

the magnetic attraction piece is arranged on the clamping assembly and is suitable for synchronously moving along with the clamping assembly, when the clamping assembly is in the clamping state, the magnetic attraction piece corresponds to the tool plate, and when the clamping assembly is in the loosening state, the magnetic attraction piece does not correspond to the tool plate;

the magnetic attraction piece is suitable for being in magnetic attraction fit with the tool plate, so that the tool plate is in contact with the battery module, and the rebound effect of the elastic component is overcome.

Further, the repair device further includes:

the turnover mechanism comprises a mounting frame and a second driving assembly arranged on the mounting frame, the bearing mechanism is rotationally connected with the mounting frame, and the second driving assembly is in transmission connection with the bearing mechanism and can drive the bearing mechanism to turn around the horizontal direction;

the lifting mechanism comprises a lifting frame and a third driving assembly in transmission connection with the lifting frame, the mounting frame is fixedly connected with the lifting frame, and the third driving assembly can drive the mounting frame to lift along the vertical direction.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, the bearing mechanism is arranged, so that the battery module to be repaired can be borne and fixed on the bearing mechanism, the position deviation of the battery module is avoided, and the reliability of the tab and the tab welding part in the cutting process is improved; through setting up with the detachable frock board of battery module, establish after the circuit board of battery module when the frock board lid, the spacing hole of frock board can enclose to establish in the periphery of utmost point ear and/or utmost point ear welded part to inject battery module's cutting area, make the cutting route more controllable, be difficult for taking place the skew, avoid puncturing electric core group, reduce the potential safety hazard, and require to hang down to repair personnel's proficiency, convenient operation is difficult for the fish tail repair personnel.

Drawings

Fig. 1 is a schematic view of the structure of the battery module repair apparatus of the present invention.

Fig. 2 is a schematic exploded view of a battery module and a tooling plate according to the present invention.

Fig. 3 is a schematic structural view of the assembled battery module and tooling plate of the present invention.

Fig. 4 is a schematic view of the structure of fig. 1 with the tilting mechanism, lifting mechanism and base removed.

Fig. 5 is a schematic structural view of a bearing mechanism in the present invention.

Fig. 6 is a schematic structural view of a first driving assembly in the present invention.

Fig. 7 is a schematic view of the installation of the components on the transmission portion of the first drive assembly of the present invention.

Fig. 8 is a schematic view of the structure of fig. 7 in the other direction.

Fig. 9 is a schematic structural diagram of the socket of fig. 7 after the socket is adjusted.

FIG. 10 is a schematic cross-sectional view of an elastomeric component of the present invention.

Fig. 11 is an exploded view of the telescopic structure of fig. 10.

Reference numerals illustrate:

100. a battery module; 110. a cell group; 111. a tab; 112. a tab welding part; 120. a circuit board; 121. an electric component; 200. a carrying mechanism; 210. a carrying frame; 211. a bottom plate; 212. a frame; 220. a clamping assembly; 221. a mounting base; 222. a guide bar group; 2221. a guide rod; 223. fixing the clamping plate; 224. a movable clamping plate; 225. a socket joint part; 230. a first drive assembly; 231. a bearing seat; 232. a screw; 2321. a first lever portion; 2322. a second lever portion; 233. a slide block; 234. a first hand wheel; 235. a connecting rod assembly; 2351. a first link; 2352. a second link; 2353. a third link; 240. an adjustment structure; 300. a tooling plate; 310. a first limiting hole; 320. a second limiting hole; 330. avoidance holes; 340. a first plate body; 350. a second plate body; 400. a bracket; 410. a first support bar; 420. a second support bar; 430. a first adjustment seat; 440. a second adjusting seat; 500. an elastic component; 510. a first connector; 520. a second connector; 530. an elastic member; 540. a first telescopic rod; 541. an outer flange; 550. a second telescopic rod; 560. an adjusting sleeve; 561. an adjustment aperture; 562. an inner flange; 600. a magnetic attraction piece; 700. a turnover mechanism; 710. a mounting frame; 720. a second drive assembly; 721. the second hand wheel; 800. a lifting mechanism; 810. a lifting frame; 820. a third drive assembly; 821. a third hand wheel; 900. and (5) a base.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The terms "comprising" and "having" and any variations thereof herein are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 3, a battery module repair apparatus according to a preferred embodiment of the present invention is used to disassemble a battery module 100 to be repaired. The battery module 100 includes a battery cell group 110 and a circuit board 120 disposed on top of the battery cell group 110, wherein the battery cell group 110 includes a tab 111 and a tab welding portion 112 penetrating above the circuit board 120 and bending toward the upper surface of the circuit board 120. The repair device comprises a bearing mechanism 200, and the battery module 100 can be borne and fixed on the bearing mechanism 200. The repair device further comprises a tooling plate 300, wherein the tooling plate 300 is detachably covered on the upper plate surface of the circuit board 120, a plurality of limiting holes are formed in the tooling plate 300 in a penetrating manner along the direction perpendicular to the plate surface, the limiting holes correspond to the tabs 111 and/or the tab welding parts 112 one by one, and the limiting holes are formed in the peripheries of the tabs 111 and/or the tab welding parts 112 in a surrounding manner.

According to the invention, the bearing mechanism 200 is arranged, so that the battery module 100 to be repaired can be borne and fixed on the bearing mechanism 200, the position deviation of the battery module 100 is avoided, and the reliability of the tab 111 and the tab welding part 112 in the cutting process is improved; through setting up with battery module 100 detachable frock board 300, establish after the circuit board 120 of battery module 100 is covered to frock board 300, the spacing hole of frock board 300 can enclose to establish in the periphery of utmost point ear 111 and/or utmost point ear welded part 112 to inject the cutting area of battery module 100, make the cutting route more controllable, be difficult for taking place the skew, avoid puncturing electric core group 110, reduce the potential safety hazard, and require lowly to the repair personnel proficiency, convenient operation is difficult for the fish tail repair personnel.

Further, the limiting holes include first limiting holes 310 corresponding to the tabs 111 one by one and second limiting holes 320 corresponding to the tab welding portions 112 one by one, the inner circumferential profile of the first limiting holes 310 is identical to the outer circumferential profile of the tabs 111 located at the upper plate surface of the circuit board 120, and the inner circumferential profile of the second limiting holes 320 is identical to the outer circumferential profile of the tab welding portions 112 located at the upper plate surface of the circuit board 120. The inner wall of the first spacing hole 310 is close to the bending part of the tab 111, the inner wall of the second spacing hole 320 is close to the bending part of the tab welding part 112, cutting seams are formed between the first spacing hole 310 and the bending part of the tab 111 and between the second spacing hole 320 and the bending part of the tab welding part 112, and when a repairing person performs cutting operation, accurate cutting can be performed along the cutting seams, so that deviation of a cutting route is avoided. Preferably, in the present embodiment, the outer circumferential profiles of the tab 111 and the tab welding part 112 at the upper portion of the circuit board 120 are square, so that the reworker can cut linearly.

In addition, since the upper plate surface of the circuit board 120 is provided with a mounting area for mounting a plurality of electrical components 121, in this embodiment, the tooling plate 300 is provided with the avoidance holes 330 in a penetrating manner along the direction perpendicular to the plate surface, and the avoidance holes 330 correspond to the mounting area, so that the tooling plate 300 is prevented from extruding and damaging the electrical components 121.

Further, referring to fig. 4 to 6, the carrying mechanism 200 includes a carrying frame 210, a clamping assembly 220, and a first driving assembly 230, the carrying frame 210 is used for carrying the battery module 100, the clamping assembly 220 is disposed in the carrying frame 210 and is movable to a clamping state for clamping the battery module 100 or a releasing state for releasing the battery module 100, and the first driving assembly 230 is in transmission connection with the clamping assembly 220 to drive the clamping assembly 220 to move.

Specifically, the carrying frame 210 includes a bottom plate 211 and a frame 212 fixedly connected to the bottom plate 211, and the frame 212 is provided with an opening for taking and placing the battery module 100. The clamping assembly 220 includes a mounting base 221, a guide bar set 222, a fixed clamping plate 223, and a movable clamping plate 224. The mounting seats 221 are fixedly connected with the bearing frame 210, and the number of the mounting seats 221 is two and are oppositely arranged along the first horizontal direction. The guide rod groups 222 are two groups and are respectively arranged at two sides of the mounting seat 221 in the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. Each guide bar group 222 includes at least one guide bar 2221 fixed between the two mounting seats 221, and the axial direction of the guide bar 2221 coincides with the first horizontal direction. The plate surface of the fixed clamping plate 223 is perpendicular to the first horizontal direction, the fixed clamping plate 223 is sleeved on the guide rod group 222, and the position of the fixed clamping plate 223 can be adjusted along the axial direction of the guide rod group 222, and particularly, the fixed clamping plate 223 can be locked or unlocked by adopting a locking member, which is not described herein. The plate surface of the movable clamping plate 224 is perpendicular to the first horizontal direction, the movable clamping plate 224 is sleeved on the guide rod group 222, and the first driving assembly 230 is in transmission connection with the movable clamping plate 224 so as to drive the movable clamping plate 224 to be close to or far away from the fixed clamping plate 223 along the axial direction of the guide rod group 222. The fixed grip plate 223 and the movable grip plate 224 have the same structure, and both include a plurality of socket parts 225 sleeved outside the guide bar 2221.

The fixed clamping plate 223, the movable clamping plate 224 and the guide rod group 222 are matched with a limiting space of the horizontal limiting battery module 100. When the battery module 100 needs to be clamped, the battery module 100 is placed on the bottom plate 211, and the battery module 100 is abutted against one of the guide rod groups 222, so that the battery module 100 is positioned in the second horizontal direction, and then the first driving assembly 230 drives the movable clamping plate 224 to move towards the fixed clamping plate 223, so that the battery module 100 is pushed to be abutted between the movable clamping plate 224 and the fixed clamping plate 223. By adopting the above-described structure, the carrying mechanism 200 can be applied to the battery modules 100 of different sizes. The two guide bar groups 222 may have a larger interval between the second horizontal directions so as to fit more sizes of the battery modules 100; and the position of the fixing clip plate 223 is adjusted to fit more sizes of the battery modules 100 in the first horizontal direction.

In an embodiment, the battery module 100 is limited between the two guide rod sets 222 in the second horizontal direction, and the battery module 100 can be placed on the bottom plate 211 only from the top of the limiting space, so that the battery module 100 placed on the bottom plate 211 is not easy to separate from the repairing device, and the reliability is good, and the potential safety hazard is avoided.

Indeed, in another embodiment, referring to fig. 9, one guide bar set 222 is not overlapped with the projection of the battery module 100 placed on the bottom plate 211 in the second horizontal direction, so that the battery module 100 can be pushed to the bottom plate 211 along the second horizontal direction and is abutted against the other guide bar set 222. Specifically, the sleeving part 225 corresponding to one group of guide rod groups 222 can be adjusted upwards and downwards, so that the position of the guide rod 2221 in the vertical direction can be adjusted, and an avoidance area for taking and placing the power supply module 100 is formed. Because most of the battery modules 100 are relatively heavy, the battery modules 100 are horizontally taken and placed, so that the battery modules 100 are more convenient and labor-saving, and meanwhile, the repairing equipment can be directly butted with a conveying line body (not shown) so that the conveying line body can automatically convey the battery modules 100 to the bottom plate 211, and the manual labor amount is further reduced.

Further, the first driving assembly 230 preferably adopts a manual driving structure to improve the scene adaptation capability. The first driving assembly 230 includes a bearing seat 231, a screw 232, a slider 233 and a first hand wheel 234, where the number of the bearing seats 231 is at least one, and the bearing seats 231 is fixedly connected with the bearing frame 210, the screw 232 is installed in the bearing seat 231, the slider 233 is sleeved on the screw 232 and is in transmission connection with the movable clamping plate 224, and the first hand wheel 234 is fixedly connected with one end of the screw 232. By rotating the first hand wheel 234, the slider 233 can slide along the axial direction of the screw 232, and further drives the movable clamping plate 224 to move along the guide bar 2221.

In this embodiment, the axial direction of the screw 232 is the same as the second horizontal direction, the mounting seat 221 adjacent to the movable clamping plate 224 and the frame 212 have a certain distance in the first horizontal direction to form a mounting space for mounting the first driving assembly 230, the connecting rod assembly 235 is received between the sliding block 233 and the plate surface of the movable clamping plate 224, and the connecting rod assembly 235 is adapted to convert the acting force of the sliding block 233 in the second horizontal direction into the acting force in the first horizontal direction so as to ensure the holding capability of the movable clamping plate 224. Preferably, the mounting seat 221 adjacent to the movable clamping plate 224 is provided with a avoiding space for avoiding the connecting rod assembly 235, so as to ensure that the connecting rod assembly 235 is smoothly connected with the movable clamping plate 224.

Specifically, the screw 232 is a double-rotation-direction screw, the screw 232 includes a first rod portion 2321 and a second rod portion 2322 with opposite screw rotation directions, the number of the sliding blocks 233 is two, the sliding blocks 233 are respectively sleeved on the first rod portion 2321 and the second rod portion 2322, the connecting rod assembly 235 includes a first connecting rod 2351, a second connecting rod 2352 and a third connecting rod 2353, the first connecting rod 2351 is fixedly connected with the plate surface of the movable clamping plate 224, preferably connected in the middle area of the movable clamping plate 224, one end of the second connecting rod 2352 is hinged with one end of the first connecting rod 2351, the other end is hinged with one sliding block 233, one end of the third connecting rod 2353 is hinged with the other end of the first connecting rod 2351, and the other end is hinged with the other sliding block 233.

When the screw 232 is rotated, the two sliding blocks 233 are adapted to move oppositely to push the first link 2351 and the movable clamping plate 224 to approach the fixed clamping plate 223 along the first horizontal direction; when the screw 232 is rotated in the opposite direction, the two sliders 233 are adapted to move back to pull the first link 2351 and the movable clamping plate 224 away from the fixed clamping plate 223 in the first horizontal direction.

Indeed, in other embodiments, the axial direction of the screw 232 may also be identical to the first horizontal direction, at this time, the sliding blocks 233 are directly fixedly connected with the movable clamping plate 224, and since there are two sliding blocks 233, another sliding block 233 may be fixedly connected with the fixed clamping plate 223, and the locking member at the fixed clamping plate 223 is omitted, so that the movable clamping plate 224 and the fixed clamping plate 223 can move opposite to or away from each other to clamp or unclamp the battery module 100.

However, in order to secure a sufficient installation space of the first driving assembly 230, the first driving assembly 230 needs to be disposed at one side of the movable clamping plate 224 in the second horizontal direction, and since the plate surface of the movable clamping plate 224 is perpendicular to the first horizontal direction, the structure strength is relatively poor when the sliding block 233 is coupled with the movable clamping plate 224 and/or the fixed clamping plate 223, so that it is only suitable for the battery module 100 having a relatively low weight when the above structure is employed.

Further, in an embodiment, when the battery module 100 is limited between the two guide bar sets 222 in the second horizontal direction, referring to fig. 4 and 7, the repair apparatus includes a bracket 400 connected to the driving end of the first driving assembly 230, and the tooling plate 300 is mounted on the bracket 400 and located above the battery module 100, and the tooling plate 300 can be vertically moved toward or away from the battery module 100. When the first driving assembly 230 drives the clamping assembly 220 to switch to the clamping state, the tooling plate 300 synchronously moves to a working position corresponding to the battery module 100, wherein in the working position, the limiting holes on the tooling plate 300 are in one-to-one correspondence with the tabs 111 and/or the tab welding parts 112, and the avoiding holes 330 are corresponding to the mounting area; when the first driving assembly 230 drives the clamping assembly 220 to switch to the released state, the tooling plate 300 synchronously moves to an open position which is not overlapped with the projection of the battery module 100 in the vertical direction, so that the tooling plate 300 is prevented from blocking a repairing person to take the battery module 100 in the vertical direction.

Through adopting above-mentioned structure, when controlling clamping assembly 220, frock board 300 can follow clamping assembly 220 synchronous motion, and the reprocessor need not frequently to get and put frock board 300, effectively improves work efficiency.

Specifically, the bracket 400 may be connected to one of the sliders 233, and the bracket 400 may be of an adjustable structure to adapt to different types of tooling plates 300. The bracket 400 comprises a first support rod 410, a second support rod 420, a first adjusting seat 430 and a second adjusting seat 440, wherein the first support rod 410 is arranged along the vertical direction, the bottom end of the first support rod 410 is fixedly connected with the sliding block 233, the first adjusting seat 430 is sleeved outside the first support rod 410 and can adjust the position along the vertical direction, the second support rod 420 is fixedly arranged in the first adjusting seat 430 in a penetrating manner along the first horizontal direction, one end of the second support rod 420 extends to the upper side of the limiting space, the second adjusting seat 440 is sleeved on the second support rod 420 and can adjust the position along the first horizontal direction, and the tooling plate 300 is connected to the second adjusting seat 440.

Preferably, in the present embodiment, the number of the brackets 400 is two, and the brackets are respectively fixedly connected with different sliding blocks 233, the tooling plate 300 is formed by combining a first plate 340 and a second plate 350, the first plate 340 and the second plate 350 are respectively connected with different brackets 400, and the first plate 340 and the second plate 350 are oppositely moved to the working position or are reversely moved to the opening position in response to the driving of the first driving assembly 230. The first plate 340 and the second plate 350 are preferably identical in size and structure, so that the moving stability of the first plate 340 and the second plate 350 is improved. Since the stroke required by the movable clamping plate 224 for switching between the clamping state and the releasing state is smaller and the stroke required by the tooling plate 300 for switching between the working position and the opening position is larger under normal conditions, the stroke of the two can be reasonably adapted by adopting the technical scheme, and the tooling plate 300 can efficiently reach the working position. And when the repair personnel completes the cutting, the tooling plate 300 can push the cut tab 111 and/or tab welding part 112 away from the circuit board 120 when moving to the open position, thereby facilitating the repair operation of the repair personnel.

Further, the midpoint of the battery module 100 in the axial direction of the screw 232 preferably corresponds to the connection point of the first and second rod portions 2321 and 2322 of the screw 232 to effectively utilize the stroke of the screw 232. However, when the battery module 100 of a different type is replaced, there is a case in which the position of the middle point of the battery module 100 is changed. Preferably, an adjusting structure 240 is received between the first driving assembly 230 and the carrying frame 210, the adjusting structure 240 may specifically be a sliding rail structure, and the adjusting structure 240 is adapted to adjust the overall position of the first driving assembly 230 in the axial direction of the screw 232 so as to adapt to different types of battery modules 100.

Indeed, in another embodiment, when the projection of one of the guide rod sets 222 on the bottom plate 211 and the battery module 100 disposed on the bottom plate 211 in the second horizontal direction are not coincident, the tooling plate 300 disposed above the battery module 100 does not limit the taking and placing of the battery module 100, and at this time, the tooling plate 300 can be fixedly disposed above the limiting space through the bracket 400, and the bracket 400 can be mounted on the carrying frame 210 or the non-transmission portion of the first driving assembly 230 as required.

Further, referring to fig. 7 and 8, the rework apparatus further includes an elastic assembly 500 and a magnetic attraction member 600. The elastic member 500 is disposed between the tool plate 300 and the second regulation seat 440, the tool plate 300 is adapted to move downward and contact the battery module 100 when receiving a vertical downward force, and to reset upward and separate from the battery module 100 when removing the force, the magnetic attraction member 600 is disposed on the clamping member 220 to move synchronously with the clamping member 220, the magnetic attraction member 600 corresponds to the tool plate 300 when the clamping member 220 is in the clamped state, and the magnetic attraction member 600 does not correspond to the tool plate 300 when the clamping member 220 is in the unclamped state.

In an embodiment, when the tooling plate 300 corresponds to the magnetic attraction piece 600, the tooling plate 300 can be moved downwards and contacted with the battery module 100 by the pressing operation of a repairing person, at this time, the magnetic attraction piece 600 is suitable for being in magnetic attraction fit with the tooling plate 300 and overcomes the rebound effect of the elastic component 500, so that the tooling plate 300 is ensured to be kept in a pressed state, and when the tooling plate 300 does not correspond to the magnetic attraction piece 600, the tooling plate 300 is not acted by the force of the magnetic attraction piece 600 so as to ascend and reset under the rebound of the elastic component 500.

In another embodiment, the magnetic attraction force of the magnetic attraction member 600 can be adjusted, so that when the tooling plate 300 corresponds to the magnetic attraction member 600, the magnetic attraction member 600 can directly apply the attraction force for driving the tooling plate 300 to move downwards and contact with the battery module 100, thereby avoiding additional pressing operation.

Through adopting above-mentioned scheme, can drive frock board 300 downwardly moving reliably when reprocessing to keep frock board 300 and circuit board 120's laminating contact, and when needing to get discharge cell module 100, can drive frock board 300 upwardly moving reliably, be convenient for get put of battery module 100.

Specifically, the magnetic attraction piece 600 is disposed at the top of the movable clamping plate 224, the magnetic attraction piece 600 may be made of a magnetic material, the whole tool plate 300 may be made of a magnetic conductive material, or a magnetic material or a magnetic conductive material is disposed at a position of the bottom of the tool plate 300 corresponding to the magnetic attraction piece 600. When the taking and placing direction of the battery module 100 is the vertical direction, the number of the elastic assemblies 500 is two and corresponds to the first plate 340 and the second plate 350 one by one; when the taking and placing direction of the battery module 100 is the horizontal direction, the tooling plate 300 does not need to be provided with a separate structure, and at this time, the elastic component 500 can be provided with one or more components according to needs, which is not limited herein.

When the taking and placing direction of the battery module 100 is the vertical direction, the first driving assembly 230 can simultaneously drive the clamping assembly 220 and the tooling plate 300, namely, in the process of clamping the battery module 100, the screw 232 of the first driving assembly 230 is rotated, the sliding block 233 moves along the second horizontal direction so as to drive the connecting rod assembly 235 to swing, the movable clamping plate 224 and the magnetic attraction piece 600 are pushed to move towards the fixed clamping plate 223 along the first horizontal direction in the swinging process of the connecting rod assembly 235 so as to clamp the battery module 100, in the process, the first plate 340 and the second plate 350 are synchronously and gradually close along the second horizontal direction along with the sliding block 233 and are in the working position, at the moment, the magnetic attraction piece 600 on the movable clamping plate 224 is correspondingly arranged under the first plate 340 and the second plate 350, and the first plate 340 and the second plate 350 can move downwards and are in magnetic attraction fit with the magnetic attraction piece 600 so as to enable the first plate 340 and the second plate 350 to be in contact with the circuit board 120; when the battery module 100 needs to be taken out, the screw 232 is rotated along the opposite direction, the slider 233 drives the link assembly 235 to swing to pull the movable clamping plate 224 and the magnetic attraction piece 600 to move away from the fixed clamping plate 223 along the first horizontal direction so as to release the battery module 100, and in this process, the first plate 340 and the second plate 350 gradually deviate along the second horizontal direction along with the slider 233 in synchronization and are in the open position so as to be taken out of the battery module 100, at this time, the magnetic attraction piece 600 on the movable clamping plate 224 does not correspond to the first plate 340 and the second plate 350, and the first plate 340 and the second plate 350 automatically move upwards to reset.

When the taking and placing direction of the battery module 100 is the horizontal direction, the first driving assembly 230 can only drive the movable clamping plate 224 and the magnetic attraction piece 600 positioned on the movable clamping plate to move along the first horizontal direction, and enable the movable clamping plate 224 to clamp the battery module 100, at this time, the magnetic attraction piece 600 synchronously moves to the position right below the tooling plate 300, and the tooling plate 300 can move downwards and be in magnetic attraction fit with the magnetic attraction piece 600; when the movable clamping plate 224 releases the battery module 100, the magnetic attraction pieces 600 move to the positions which do not correspond to the tooling plate 300, and the tooling plate 300 moves upwards automatically to reset.

Further, referring to fig. 10 and 11, the elastic assembly 500 includes a first connector 510, a second connector 520, and an elastic member 530, where the first connector 510 and the second connector 520 are disposed opposite to each other in a vertical direction, the first connector 510 is fixedly connected with the second adjusting seat 440, the second connector 520 is fixedly connected with the tooling plate 300, the elastic member 530 is a spring, and two ends of the elastic member are connected between the first connector 510 and the second connector 520.

Preferably, a telescopic structure is connected between the first connecting member 510 and the second connecting member 520, the elastic member 530 is sleeved outside the telescopic structure, the telescopic structure is suitable for telescoping with the elastic member 530, and the telescoping amount can be adjusted as required, so as to adjust the telescoping range of the elastic member 530, thereby adjusting the displacement of the tooling plate 300 in the vertical direction and adapting to different types of battery modules 100.

The telescoping structure includes a first telescoping rod 540, a second telescoping rod 550, and an adjustment sleeve 560. One end of the first telescopic rod 540 is fixedly connected with the first connecting piece 510, one end of the second telescopic rod 550 is fixedly connected with the second connecting piece 520, and the other end of the first telescopic rod 540 is inserted into the second telescopic rod 550 from the other end of the second telescopic rod 550 and can move along the axial direction. The adjusting sleeve 560 is provided with an adjusting hole 561 along the axial through way, the first telescopic rod 540 is coaxially arranged in the adjusting hole 561 in a penetrating way, the outer edge of the first telescopic rod 540 is provided with a circle of outer flange 541, the outer diameter of the outer flange 541 is smaller than the inner diameter of the adjusting hole 561, the inner wall of the adjusting hole 561 is provided with a circle of inner flange 562, and the inner diameter of the inner flange 562 is not smaller than the outer diameter of the first telescopic rod 540. The inner edge of the adjusting sleeve 560 is provided with an inner thread, the outer edge of the second telescopic rod 550 is provided with an outer thread, the adjusting sleeve 560 is in threaded connection with the second telescopic rod 550, and the outer flange 541 is axially limited between the inner flange 562 and the end part of the second telescopic rod 550. By rotating the adjustment sleeve 560, the distance between the inner flange 562 and the end of the second telescoping rod 550 can be adjusted, thereby adjusting the amount of telescoping between the first telescoping rod 540 and the second telescoping rod 550.

Further, returning to fig. 1, the repairing apparatus further includes a base 900, a lifting mechanism 800 disposed on the base 900, and a turning mechanism 700 in transmission connection with the lifting mechanism 800, where the carrying mechanism 200 is in transmission connection with the turning mechanism 700, and the turning mechanism 700 is adapted to turn the carrying mechanism 200 around a horizontal direction, and the lifting mechanism 800 is adapted to lift the carrying mechanism 200 along a vertical direction, so as to adjust the battery module 100 to a position angle according with a repairing person as required, thereby improving repairing experience and repairing efficiency.

The turnover mechanism 700 comprises a mounting frame 710 and a second driving assembly 720, the bearing mechanism 200 is rotationally connected with the mounting frame 710, the second driving assembly 720 is arranged on the mounting frame 710 and is in transmission connection with the bearing mechanism 200, and the second driving assembly 720 can drive the bearing mechanism 200 to turn around the horizontal direction. In this embodiment, the rotation axis direction of the bearing mechanism 200 is consistent with the first horizontal direction, a rotating shaft structure is connected between the frame 212 and the mounting frame 710, the second driving assembly 720 is in transmission connection with the rotating shaft structure, and the second driving assembly 720 is specifically a manually driven speed reducer, which has a second hand wheel 721 for manual driving by a repairing person.

The lifting mechanism 800 includes a lifting frame 810 and a third driving assembly 820, the lifting frame 810 is slidably disposed on the base 900 along a vertical direction, and the third driving assembly 820 is disposed on the base 900 and is in transmission connection with the lifting frame 810. The mounting frame 710 is fixedly connected with the lifting frame 810, and the third driving assembly 820 can drive the mounting frame 710 to lift in the vertical direction. The third drive assembly 820 is embodied as a manual lead screw elevator having a third hand wheel 821 for manual drive by a rework personnel.

Preferably, the first hand wheel 234, the second hand wheel 721 and the third hand wheel 821 are all located at the same side of the repairing device in the second horizontal direction, and the repairing personnel can be located at the working side to perform repairing operation on the battery module 100, so that the convenience of operation is improved.

The working process of the battery module repairing equipment is as follows: placing the battery module 100 to be repaired into the bearing mechanism 200 according to a preset position, and abutting the side surface of the battery module 100 against the guide rod group 222 positioned on the working side; then, the second hand wheel 721 of the second driving assembly 720 is driven to tilt the bottom plate 211 of the carrying mechanism 200, the lower side of the bottom plate 211 is close to the working side, and the battery module 100 can be abutted against the guide rod group 222 under the action of gravity, so as to ensure the position accuracy; then, the first hand wheel 234 of the first driving assembly 230 is driven to switch the clamping assembly 220 from the loosening state to the clamping state, the battery module 100 is fastened between the movable clamping plate 224 and the fixed clamping plate 223, the circuit board 120 of the battery module 100 corresponds to the tooling plate 300, the magnetic attraction piece 600 corresponds to the tooling plate 300, the tooling plate 300 moves downwards to contact the circuit board 120 under the magnetic attraction of the magnetic attraction piece 600, and the limit Kong Wei on the tooling plate 300 is arranged on the peripheries of the lug 111 and the lug welding part 112 protruding from the upper surface of the circuit board 120 so that a repairing personnel can cut the lug 111 and the lug welding part 112 according to a preset cutting route; when the battery module 100 needs to be taken out, the first hand wheel 234 is driven to switch the clamping assembly 220 from the releasing state to the clamping state, so as to take the battery module 100 away from the carrying mechanism 200, and at the same time, the magnetic attraction piece 600 is not attracted to the tooling plate 300, and the tooling plate 300 is reset upwards under the action of the elastic assembly 500. When the battery modules 100 of different types are required to be reworked, the corresponding tooling plate 300 is replaced.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or direct or indirect application in other related technical fields are included in the scope of the patent protection of the present application.

Claims

1. A battery module repair apparatus, comprising:

the bearing mechanism (200) is used for bearing and fixing the battery module (100), and the battery module (100) comprises a battery cell group (110) and a circuit board (120) arranged at the top of the battery cell group (110);

a tooling plate (300) detachably covered on the upper plate surface of the circuit board (120);

the battery cell group (110) comprises a lug (111) and a lug welding part (112) penetrating through the upper side of the circuit board (120) and bending towards the upper surface of the circuit board (120), a plurality of limiting holes are formed in the tooling plate (300) in a penetrating mode along the direction perpendicular to the surface of the tooling plate, the limiting holes correspond to the lug (111) and/or the lug welding part (112) one by one, and the limiting holes are arranged on the peripheries of the lug (111) and/or the lug welding part (112) in a surrounding mode.

2. The battery module repair apparatus of claim 1, wherein the limiting hole comprises:

the first limiting holes (310) are in one-to-one correspondence with the lugs (111), and the inner peripheral outline of each first limiting hole (310) is the same as the outer peripheral outline of the lug (111) positioned on the upper plate surface of the circuit board (120);

the second limiting holes (320) are in one-to-one correspondence with the tab welding parts (112), and the inner circumferential outline of each second limiting hole (320) is the same as the outer circumferential outline of the tab welding part (112) positioned on the upper plate surface of the circuit board (120);

the inner wall of the first limiting hole (310) is closely adjacent to the bending part of the tab (111), the inner wall of the second limiting hole (320) is closely adjacent to the bending part of the tab welding part (112), and cutting seams are formed between the bending parts of the first limiting hole (310) and the tab (111) and between the second limiting hole (320) and the bending part of the tab welding part (112).

3. The battery module repair apparatus according to claim 1, wherein the circuit board (120) includes a mounting region for mounting the electric component (121), the tooling plate (300) is provided with a through hole (330) penetrating in a direction perpendicular to a plate surface thereof, and the through hole (330) corresponds to the mounting region.

4. The battery module repair apparatus of claim 1, wherein the carrying mechanism (200) comprises:

a carrying frame (210) for carrying the battery module (100);

a clamping assembly (220) disposed in the carrying frame (210) and movable to a clamping state of clamping the battery module (100) or a releasing state of releasing the battery module (100);

and the first driving assembly (230) is in transmission connection with the clamping assembly (220) so as to drive the clamping assembly (220) to move.

5. The battery module repair apparatus of claim 4, wherein the clamping assembly (220) comprises:

the mounting seats (221) are fixedly connected with the bearing frame (210), and the number of the mounting seats (221) is two and are oppositely arranged along the first horizontal direction;

the guide rod groups (222) are two in number and are respectively arranged on two sides of the mounting seats (221) in the second horizontal direction, each guide rod group (222) comprises at least one guide rod (2221) fixed between the two mounting seats (221), and the axial direction of each guide rod (2221) is consistent with the first horizontal direction;

A fixed clamping plate (223) sleeved on the guide rod group (222) and capable of adjusting the position along the axial direction of the guide rod group (222);

the movable clamping plate (224) is sleeved on the guide rod group (222), and the first driving assembly (230) is suitable for driving the movable clamping plate (224) to be close to or far away from the fixed clamping plate (223) along the axial direction of the guide rod (2221);

the first horizontal direction is perpendicular to the second horizontal direction, and the fixed clamping plate (223), the movable clamping plate (224) and the guide rod group (222) are matched and enclosed to form a limit space for horizontally limiting the battery module (100).

6. The battery module repair apparatus of claim 4, wherein the taking and placing direction of the battery module (100) is a vertical direction, a transmission end of the first driving assembly (230) is connected with a bracket (400), the tooling plate (300) is mounted on the bracket (400) and located above the battery module (100), the tooling plate (300) can approach or depart from the battery module (100) along the vertical direction, the first driving assembly (230) is suitable for driving the clamping assembly (220) and the tooling plate (300) to synchronously move, and when the clamping assembly (220) is switched to the clamping state, the tooling plate (300) moves to an operating position corresponding to the battery module (100), and when the first driving assembly (230) drives the clamping assembly (220) to be switched to the releasing state, the tooling plate (300) moves to an open position which is not coincident with the projection of the battery module (100) in the vertical direction.

7. The battery module repair apparatus of claim 6, wherein the first driving assembly (230) comprises:

at least one bearing seat (231) fixedly connected with the bearing frame (210);

a screw (232) mounted in the bearing seat (231), the screw (232) comprising a first rod portion (2321) and a second rod portion (2322) with opposite screw threads;

the number of the sliding blocks (233) is two, and the sliding blocks are respectively sleeved on the first rod part (2321) and the second rod part (2322);

a first hand wheel (234) fixedly connected to one end of the screw (232);

the number of the brackets (400) is two, the two brackets are respectively and fixedly connected with different sliding blocks (233), the tooling plate (300) is formed by combining a first plate body (340) and a second plate body (350), the first plate body (340) and the second plate body (350) are respectively connected with different brackets (400), and the first plate body (340) and the second plate body (350) are driven by the first driving assembly (230) to move oppositely to the working position or move back to the opening position.

8. The battery module repair apparatus of claim 4, wherein the taking and placing direction of the battery module (100) is a horizontal direction, the tooling plate (300) is disposed above the battery module (100) through a bracket (400) and can be close to or far from the battery module (100) in a vertical direction, and the tooling plate (300) corresponds to the battery module (100) when the first driving assembly (230) drives the clamping assembly (220) to switch to the clamping state.

9. The battery module repair apparatus of claim 6 or 8, wherein the repair apparatus comprises:

an elastic assembly (500) disposed between the tool plate (300) and the bracket (400), the tool plate (300) being downwardly movable in response to a vertically downward force and contacting the battery module (100), and being upwardly restored and disengaged from the battery module (100) when the force is removed;

a magnetic attraction piece (600) arranged on the clamping assembly (220) and suitable for synchronously moving along with the clamping assembly (220), wherein when the clamping assembly (220) is in the clamping state, the magnetic attraction piece (600) corresponds to the tooling plate (300), and when the clamping assembly (220) is in the loosening state, the magnetic attraction piece (600) does not correspond to the tooling plate (300);

Wherein, the magnetic attraction piece (600) is suitable for being in magnetic attraction fit with the tooling plate (300) so as to enable the tooling plate (300) to be in contact with the battery module (100) and overcome the rebound effect of the elastic component (500).

10. The battery module repair apparatus of claim 1, wherein the repair apparatus further comprises:

the turnover mechanism (700) comprises a mounting frame (710) and a second driving assembly (720) arranged on the mounting frame (710), the bearing mechanism (200) is rotationally connected with the mounting frame (710), and the second driving assembly (720) is in transmission connection with the bearing mechanism (200) and can drive the bearing mechanism (200) to turn around the horizontal direction;

the lifting mechanism (800) comprises a lifting frame (810) and a third driving assembly (820) in transmission connection with the lifting frame (810), wherein the mounting frame (710) is fixedly connected with the lifting frame (810), and the third driving assembly (820) can drive the mounting frame (710) to lift along the vertical direction.