CN217768460U

CN217768460U - Battery module assembly extrusion frock

Info

Publication number: CN217768460U
Application number: CN202221829798.7U
Authority: CN
Inventors: 张军
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-08
Anticipated expiration: 2032-07-15

Abstract

The utility model provides a battery module assembly extrusion tooling, which comprises a bottom plate, a side surface extrusion mechanism, an end surface limiting part and an end surface extrusion mechanism; the side surface extrusion mechanism, the end surface limiting piece and the end surface extrusion mechanism are used for horizontally extruding the battery pack placed on the bottom plate, and further comprise a positioning plate and a top surface pressing mechanism; the positioning plate is positioned among the side surface extrusion mechanism, the end surface limiting part and the end surface extrusion mechanism and is horizontally and fixedly connected with the top surface of the bottom plate, and the positioning plate is used for being attached to one surface of the single battery, which is provided with the pole; the top surface hold-down mechanism is horizontally arranged on one surface of the battery pack, which is far away from the pole, and is used for downwards extruding the battery pack and matching with the positioning plate to limit the movement of the single battery in the height direction. The utility model discloses can realize that battery module assembly extrudees the back, all battery cell utmost point posts are on same horizontal plane, avoid having welding precision and quality problems in follow-up busbar and utmost point post welding.

Description

Battery module assembly extrusion frock

Technical Field

The utility model relates to a battery module makes technical field, especially relates to a battery module assembly extrusion frock.

Background

In the process of manufacturing a battery module, a plurality of single battery cells are generally required to be sequentially arranged in a row and tightly attached to each other so as to reduce gaps between the battery units, and then the row of single battery cells are bound together through end plates and side plates to form the battery module.

In the assembly process of a battery module, which is generally performed using a pressing tool, chinese patent CN212542562U discloses a "clamping device for a battery module tool" which is configured to press a plurality of battery cells against each other by placing the plurality of battery cells on a support member, a stopper member disposed at one end of the support member, and a pushing device disposed at the other end of the support member, and which is capable of pressing the plurality of battery cells toward the stopper member. Above-mentioned press from both sides tight frock and carry out the extrusion in-process to battery monomer, can take place relative slip when the extrusion between the battery monomer, and then the battery module after the equipment that makes is accomplished in monomer electric core not on same horizontal plane, embody that single battery slides along battery module width direction and direction of height.

CN210755969U discloses an assembly fixture of battery module, it is spacing to monomer battery group width direction through two side locating parts, it is spacing to monomer battery group length direction one end through the terminal surface mounting, the terminal surface extruded article is towards the direction extrusion monomer battery group near the terminal surface mounting, though this patent can avoid in battery module device extrusion process, the monomer battery slides along width direction relatively, but still has the problem that the monomer battery slided in the direction of height relatively.

Because can take place relative slippage along the direction of height when the extrusion between the battery cell, and then the battery cell is not on same horizontal plane in the battery module after the equipment that makes is accomplished, the height is uneven when the monomer electricity core in the battery module appears, battery cell's utmost point post is not on same horizontal plane, this can lead to when welding battery cell in to the battery module, the busbar is not on same horizontal plane with utmost point post, thereby cause the welding rosin joint, the inside not hard up phenomenon of welding back, hardly guarantee welding quality.

Simultaneously, among the disclosed battery module assembly extrusion frock of above-mentioned patent document, for convenience single battery bottom surface and frock level laminating, its utmost point post all faces up when single battery assembles on the frock, because there is certain difference in single battery supplied material height itself, when using above-mentioned extrusion frock to carry out battery module assembly, will further increase the difference in height between the single battery, cause single battery utmost point post difference in height to increase for the battery module that the equipment was accomplished can't guarantee welding precision and quality when the welding.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a battery module assembly extrusion frock solves current frock behind battery module extrusion assembly, can't guarantee battery cell utmost point post on same horizontal plane to can't guarantee busbar and utmost point post welding precision and quality problems.

The technical scheme of the utility model is realized like this:

the utility model provides a battery module assembly extrusion tooling, which comprises a bottom plate, a side extrusion mechanism, an end face limiting part and an end face extrusion mechanism; wherein, the first and the second end of the pipe are connected with each other,

the bottom plate horizontally extends along the length direction and is used for placing a battery pack formed by arranging a plurality of single batteries;

the two side extrusion mechanisms are symmetrically arranged and are respectively positioned on two sides of the width direction of the bottom plate, and the two side extrusion mechanisms are mutually matched to extrude the battery pack in the width direction;

the end face limiting piece is fixedly arranged at one end of the bottom plate in the length direction and used for limiting one end of the battery pack in the length direction;

the end face extrusion mechanism is fixedly arranged at one end of the bottom plate, which is far away from the end face limiting piece, and is used for moving towards the end face limiting piece so as to extrude the length direction of the battery pack;

the device also comprises a positioning plate and a top surface pressing mechanism; wherein the content of the first and second substances,

the positioning plate is positioned among the side surface extrusion mechanism, the end surface limiting part and the end surface extrusion mechanism and is horizontally and fixedly connected with the top surface of the bottom plate, and the positioning plate is used for being attached to one surface of the single battery with the pole;

the top surface hold-down mechanism is horizontally arranged on one surface of the battery pack, which is far away from the pole, and is used for downwards extruding the battery pack and matching with the positioning plate to limit the movement of the single battery in the height direction.

On the basis of the technical scheme, preferably, the side extrusion mechanism comprises a mounting rack, two first extrusion plates and quick clamps, wherein the mounting rack is fixedly arranged on the bottom plate on one side of the width direction of the positioning plate, the quick clamps are provided with two parts and are respectively arranged at two ends of the length direction of the mounting rack, the first extrusion plates are vertically arranged between the positioning plate and the mounting rack, and the two quick clamps are respectively connected with the first extrusion plates.

Further, it is preferred, side extrusion mechanism still includes first slide rail, first slider and connecting plate, first slide rail parallel fixation sets up at the mounting bracket top surface, and perpendicular with mounting bracket length direction, and two active grab are fixed respectively and are set up the both ends at the connecting plate, and the both ends of connecting plate are provided with the locating hole that corresponds each other through first slider and first slide rail sliding connection respectively on connecting plate and the mounting bracket.

On the basis of above-mentioned technical scheme, it is preferred, end face extrusion mechanism includes mount, extruded article and lead screw, the mount is fixed to be set up on the locating plate keeps away from the bottom plate at the one end place of end face locating part, and the extruded article slides and sets up on the mount, and can just move towards end face extrusion mechanism direction translation, and the one end and the extrusion seat of lead screw rotate to be connected, and the mount is passed to the other end level of lead screw, and with mount threaded connection, the hand wheel of one end fixedly connected with of extruded article is kept away from to the lead screw.

Further, preferably, the end face extrusion mechanism further comprises a second slide rail and a second slide block, the bottom of the fixing frame is horizontally connected with a sliding plate, the second slide rail is horizontally and fixedly arranged on the sliding plate and is parallel to the lead screw, the extrusion piece comprises a sliding seat and a second extrusion plate, the second extrusion plate is vertically and fixedly arranged on the sliding seat, the sliding seat is connected with the second slide rail in a sliding mode through the second slide block, and a first limiting part used for limiting the moving stroke of the extrusion piece is fixedly arranged at one end, far away from the fixing seat, of the sliding plate.

On the basis of the technical scheme, preferably, the top surface pressing mechanism comprises a cover plate and a buckle assembly, one end of the cover plate is hinged with the top of the fixing frame, and the other end of the cover plate is in buckle connection with the end face limiting part through the buckle assembly.

Further, preferably, the buckle subassembly includes linking arm, first spring and second locating part, the linking arm rotates to set up the one end that is close to the terminal surface locating part at the apron, and the upper end of linking arm extends to be formed with to holding the portion, the second locating part is fixed to be set up at the apron top surface, and is close to the linking arm, the one end of first spring with support and hold a fixed connection, the other end and second locating part fixed connection, the linking arm is kept away from the one end of holding the portion and is provided with joint portion, is provided with the block portion that is connected with joint portion on the terminal surface locating part.

On the basis of the technical scheme, preferably, the pressing plate is fixedly arranged on the bottom surface of the cover plate along the length direction of the cover plate, and the pressing plate is used for being attached to one surface, away from the pole, of the battery pack.

Further, it is preferred, top surface hold-down mechanism still includes the pretension subassembly, the pretension subassembly includes first fixed plate, second fixed plate, guide bar and second spring, the apron has been seted up near the one end bottom surface of buckle subassembly and has been dodged the groove, first fixed plate level is fixed to be set up at the apron bottom surface and with dodge the groove corresponding, second fixed plate level sets up in first fixed plate below for contact with terminal surface locating part top surface, the one end and the second fixed plate fixed connection of guide bar, the other end activity pass first fixed plate and be connected with the third locating part, the third locating part is just right dodge the groove, the second spring housing is established on the guide bar.

Preferably, a handle is fixedly arranged at one end, close to the buckle assembly, of the top surface of the cover plate, and a fourth limiting part used for limiting the cover plate to turn over is arranged at the top of the fixing frame.

The utility model discloses following beneficial effect has for prior art:

(1) The utility model discloses a battery module assembly extrusion frock, through the fixed locating plate that sets up of level on the bottom plate, invert the group battery that a plurality of monomer batteries arranged and formed, make the one side that monomer battery has utmost point post laminate with the locating plate, utmost point post does not contact with the locating plate, install the end plate additional at group battery length direction both ends, install the curb plate additional at group battery width direction both sides, through side extrusion mechanism, terminal surface locating part and terminal surface extrusion mechanism mutually support, accomplish the assembly extrusion of battery module on the horizontal direction, at this moment, under the horizontal extrusion force effect, can take place relative slip along the direction of height when extruding between the monomer battery, through top surface hold-down mechanism, extrude the group battery downwards, can move all monomer batteries downwards, make the one side that monomer battery has utmost point post laminate with the locating plate, and then guarantee that monomer battery has utmost point post one side on same horizontal plane, realize from this that battery module assembly extrudees that all monomer battery utmost point posts are on same horizontal plane, avoid having welding precision and quality problem in follow-up busbar and utmost point post welding;

(2) Through the arrangement of the quick clamp, on one hand, the whole side surface extrusion mechanism is simple in structure, the cost of the whole tool is reduced, on the other hand, the quick clamp is convenient to operate, and clamping and positioning can be quickly realized;

(3) Through the matching of the end face extrusion mechanism and the end face limiting piece, on one hand, the assembly extrusion of the battery modules with different lengths can be compatible, on the other hand, the end face extrusion mechanism is fixed through the end face limiting piece and is driven to move manually, so that the working mode can be simplified, the semi-automatic mode can better ensure the identity of each assembly process, and the consistency of the assembly quality of the battery modules is ensured;

(4) One end of the cover plate is hinged with the fixing frame, and the other end of the cover plate is in buckle connection with the end face limiting part through the buckle assembly, so that on one hand, the cover plate is detachably arranged on the end face limiting part and the end face extrusion mechanism, and the assembly and extrusion operation of battery modules with different lengths can be compatible; on the other hand, the top surface pressing mechanism can be organically connected with the end surface limiting part and the end surface extrusion mechanism, after the horizontal extrusion of the battery module is completed, the extrusion of the battery module in the vertical direction can be rapidly and flexibly realized, and the problem that the single battery poles are not on the same horizontal plane is solved;

(5) Through setting up the pretension subassembly, can make the apron when exerting the extrusion force downwards to the group battery, improve the extrusion force of apron between vertical direction and group battery, avoid the monomer battery upwards to slide.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an operating state of the battery module assembling and extruding tool disclosed by the utility model;

fig. 2 is a schematic view of the internal structure of the battery module assembling and extruding tool disclosed by the utility model;

fig. 3 is a schematic view of a working state plane structure of the battery module assembling and extruding tool disclosed by the utility model;

fig. 4 is a schematic perspective view of a side extrusion mechanism disclosed in the present invention;

fig. 5 is a schematic perspective view of the end face extrusion mechanism disclosed in the present invention;

fig. 6 is a schematic perspective view of the top surface pressing mechanism disclosed in the present invention;

fig. 7 is a schematic structural view of a pre-tightening assembly disclosed by the present invention;

the attached drawings are as follows:

1. a base plate; 2. a side extrusion mechanism; 3. an end face limiting piece; 4. an end face extrusion mechanism; s, a battery pack; 5. positioning a plate; 6. a top surface pressing mechanism; 21. a mounting frame; 22. a first compression plate; 23. quick clamping; 24. a first slide rail; 25. a first slider; 26. a connecting plate; 27. positioning holes; 41. a fixed mount; 42. an extrusion; 43. a lead screw; 44. a hand-operated wheel; 45. a second slide rail; 46. a second slider; 411. a sliding plate; 421. a sliding seat; 422. a second compression plate; 47. a first limit piece; 61. a cover plate; 62. a buckle assembly; 621. a connecting arm; 622. a first spring; 623. a second limit piece; 6211. a holding portion; 6212. a clamping part; 31. a fastening part; 63. a compression plate; 64. a pre-tightening assembly; 641. a first fixing plate; 642. a second fixing plate; 643. a guide bar; 644. a second spring; 612. an avoidance groove; 645. a third limiting member; 611. a handle; 412. and a fourth limiting member.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1, combine fig. 2 and 3, the embodiment of the utility model discloses a battery module assembly extrusion frock is disclosed, including bottom plate 1, side extrusion mechanism 2, terminal surface locating part 3 and terminal surface extrusion mechanism 4.

Wherein, 1 level of bottom plate is fixed on table surface, because the battery module is the cuboid form usually, for the convenience of the assembly of battery module on bottom plate 1, bottom plate 1 extends along the length direction level, when the battery module equipment, can arrange a plurality of battery cells and form group battery S, places and carries out the assembly on the bottom plate 1 and form the battery module.

The two side extrusion mechanisms 2 are symmetrically arranged and are respectively positioned on two sides of the width direction of the bottom plate 1, and the two side extrusion mechanisms 2 are mutually matched to extrude the battery pack S in the width direction.

In the actual assembly process of the battery module, the side plates can be additionally arranged on two sides of the width direction of the battery pack S or not.

And the end face limiting part 3 is fixedly arranged at one end of the bottom plate 1 in the length direction and used for limiting one end of the battery pack S in the length direction. When the battery module is assembled, the battery pack S formed by arrangement is placed on the bottom plate 1, two sides of the width direction of the battery pack S are extruded through the side extrusion mechanism 2, then the end plate is additionally arranged at one end of the length direction of the battery pack S, and the end surface limiting part 3 is abutted against the end plate.

And the end face extrusion mechanism 4 is fixedly arranged at one end of the bottom plate 1, which is far away from the end face limiting part 3, and is used for moving towards the end face limiting part 3 so as to extrude the length direction of the battery pack S. An end plate is installed at the other end of the battery pack S, and the end face extrusion mechanism 4 moves towards the end face limiting piece 3 to extrude the battery pack S in the length direction.

Therefore, in order to solve the above problem, the present embodiment adopts the following scheme: on the basis of the structure, a positioning plate 5 and a top surface pressing mechanism 6 are also arranged.

The positioning plate 5 is located among the side surface extrusion mechanism 2, the end surface limiting part 3 and the end surface extrusion mechanism 4, and is horizontally and fixedly connected with the top surface of the bottom plate 1, and the positioning plate 5 is used for being attached to one surface of the single battery with the pole. In this embodiment, the positioning plate 5 is made of an insulating material, and the width of the positioning plate 5 is smaller than the distance between two poles of the single battery, so that the positioning plate 5 is just away from the poles.

And the top surface pressing mechanism 6 is horizontally arranged on one surface of the battery pack S far away from the pole and is used for downwards extruding the battery pack S and matching with the positioning plate 5 to limit the movement of the single battery in the height direction.

By adopting the technical scheme, when the battery module assembly process is carried out, the battery pack S formed by arranging a plurality of single batteries is inverted, one surface of each single battery with a pole is attached to the positioning plate 5, the pole is not contacted with the positioning plate 5, the side surface extrusion mechanism 2, the end surface limiting part 3 and the end surface extrusion mechanism 4 are matched with each other, the assembly extrusion of the battery module in the horizontal direction is completed, at the moment, under the action of horizontal extrusion force, the single batteries can slide relatively along the height direction during extrusion, the battery pack S is extruded downwards through the top surface pressing mechanism 6, all the single batteries can move downwards, one surface of each single battery with a pole is attached to the positioning plate 5, and one surface of each single battery with a pole is ensured to be positioned on the same horizontal plane, therefore, after the assembly extrusion of the battery module, all the single battery poles are positioned on the same horizontal plane, and the problems of welding precision and quality existing in the subsequent welding of a busbar and the poles are avoided.

As some preferred embodiments, referring to fig. 4, the side pressing mechanism 2 of the present embodiment includes a mounting frame 21, a first pressing plate 22 and two quick clamps 23, the mounting frame 21 is fixedly disposed on the bottom plate 1 on one side of the width direction of the positioning plate 5, the two quick clamps 23 are respectively disposed at two ends of the mounting frame 21 in the length direction, the first pressing plate 22 is vertically disposed between the positioning plate 5 and the mounting frame 21, and the two quick clamps 23 are respectively connected to the first pressing plate 22. In concrete extrusion in-process, group battery S places the completion back on locating plate 5, can set up the curb plate in group battery S width direction both sides, also can not set up, under the initial condition, two first stripper plate 22 intervals on two side extrusion mechanisms 2 are greater than group battery S width, through with quick clamp 23 after being close to locating rack one end suitable position at mounting bracket 21 and fixing in position, keep quick clamp 23 fixed in position on mounting bracket 21, operate quick clamp 23 on two side extrusion mechanisms 2 through synchronous, and then realize that two first stripper plates 22 are drawn close relatively in step, realize extrudeing group battery S width direction.

In order to make and leave sufficient space between two side extrusion mechanism 2 and assemble the battery module, this embodiment sets up the active grab 23 on mounting bracket 21 adjustably, it is specific, side extrusion mechanism 2 still includes first slide rail 24, first slider 25 and connecting plate 26, first slide rail 24 parallel fixed sets up at mounting bracket 21 top surface, and perpendicular with mounting bracket 21 length direction, two active grab 23 are fixed the both ends that set up at connecting plate 26 respectively, first slider 25 and first slide rail 24 sliding connection are passed through respectively at the both ends of connecting plate 26, be provided with locating hole 27 that corresponds each other on connecting plate 26 and the mounting bracket 21. From this setting, in the initial state, through sliding connection board 26, can order about connecting board 26 to slide towards the one end of keeping away from locating plate 5 along first slide rail 24, increase the interval between two first stripper plates 22, after group battery S is installed on locating plate 5 and is accomplished, with connecting board 26 towards group battery S direction slip on first slide rail 24, make first stripper plate 22 be close to group battery S, and be in suitable position, at this moment, locating hole 27 on the connecting board 26 corresponds with locating hole 27 on the mounting bracket 21, through inserting the setting pin in locating hole 27, can carry out the position location with two rapid tongs 23.

The setting of quick-operation clamp 23 is passed through to this embodiment, makes whole side extrusion mechanism 2 simple structure on the one hand, reduces the cost of whole frock, and on the other hand, quick-operation clamp 23 convenient operation, can realize fast that the clamp is pressed from both sides tight the location.

In this embodiment, referring to fig. 5, the end face extrusion mechanism 4 includes a fixing frame 41, an extrusion piece 42 and a lead screw 43, the fixing frame 41 is fixedly disposed on the bottom plate 1 where one end of the positioning plate 5 away from the end face limiting piece 3 is located, the extrusion piece 42 is slidably disposed on the fixing frame 41 and can move horizontally towards the end face extrusion mechanism 4, one end of the lead screw 43 is rotatably connected with the extrusion seat, the other end of the lead screw 43 horizontally penetrates through the fixing frame 41 and is in threaded connection with the fixing frame 41, and one end of the lead screw 43 away from the extrusion piece 42 is fixedly connected with a hand wheel 44.

Adopt above-mentioned scheme, the group battery S that will arrange and form is placed on bottom plate 1, extrude group battery S width direction both sides through side extrusion mechanism 2, then install the end plate additional at group battery S length direction one end, and make terminal surface locating part 3 support with the end plate and hold, install the end plate at the same of the group battery S other end, through rotating hand wheel 44, hand wheel 44 drives lead screw 43 and rotates on mount 41, thereby drive extruded article 42 and remove towards 3 directions of terminal surface locating part, extruded article 42 realizes extruding group battery S length direction with the cooperation of terminal surface locating part 3.

In order to realize the smooth movement of the extrusion member 42, in this embodiment, a second slide rail 45 and a second slide block 46 are further disposed on the end face extrusion mechanism 4, the bottom of the fixed frame 41 is horizontally connected with a slide plate 411, the second slide rail 45 is horizontally and fixedly disposed on the slide plate 411 and is parallel to the lead screw 43, the extrusion member 42 includes a slide seat 421 and a second extrusion plate 422, the second extrusion plate 422 is vertically and fixedly disposed on the slide seat 421, and the slide seat 421 is slidably connected with the second slide rail 45 through the second slide block 46. With this arrangement, the pressing member 42 slides along the second slide rail 45 of the slide plate 411 via the second slider 46, and the pressing member 42 can be smoothly moved in the horizontal direction with respect to the fixing frame 41.

One end of the sliding plate 411, which is far away from the fixing frame 41, is fixedly provided with a first limiting member 47 for limiting the moving stroke of the extrusion member 42. Through the setting of first locating part 47, can restrict the stroke of extruded piece 42, avoid extruded piece 42 to move the stroke overload, cause the level to weigh wounded to group battery S.

It should be noted that, when pressing the battery modules with different lengths, the position of the first limiting member 47 on the sliding plate 411 can be adjusted.

This embodiment passes through the cooperation of terminal surface extrusion mechanism 4 and terminal surface locating part 3, on the one hand, can be compatible the assembly extrusion of different length battery module, and on the other hand is fixed through terminal surface locating part 3, and artifical mode drive terminal surface extrusion mechanism 4 removes, can simplify working method, and the semi-automatization mode more can guarantee the identity of the assembling process each time, guarantees the uniformity of battery module assembly quality.

As some preferred embodiments, referring to fig. 6 and 7, the top surface pressing mechanism 6 includes a cover plate 61 and a snap assembly 62, one end of the cover plate 61 is hinged to the top of the fixing frame 41, and the other end of the cover plate 61 is snap-connected to the end surface stopper 3 through the snap assembly 62. By adopting the technical scheme, on one hand, the cover plate 61 is detachably arranged on the end surface limiting piece 3 and the end surface extrusion mechanism 4, and the assembly and extrusion operation of the battery modules with different lengths can be compatible; on the other hand, can realize that top surface hold-down mechanism 6 is connected with terminal surface locating part 3 and terminal surface extrusion mechanism 4 organically, after accomplishing battery module horizontal extrusion, can be fast nimble realization extrude the vertical direction of battery module, and then solve the problem that the monomer battery utmost point post is not on same horizontal plane.

In this embodiment, the fastening assembly 62 includes a connecting arm 621, a first spring 622, and a second limiting member 623, the connecting arm 621 is rotatably disposed at one end of the cover plate 61 close to the end-face limiting member 3, one end of the connecting arm 621 away from the abutting portion 6211 is provided with a clamping portion 6212, and the end-face limiting member 3 is provided with a clamping portion 31 connected to the clamping portion 6212. Adopt above-mentioned technical scheme, when carrying out the extrusion of group battery S vertical direction, with apron 61 one end around mount 41 upset to group battery S top surface and be in the level, through pressing apron 61, apron 61 drives linking arm 621 downstream, makes the joint portion 6212 of linking arm 621 bottom and the block portion 31 on the terminal surface locating part 3 carry out the joint. Because the connecting arm 621 is rotatably connected to the cover plate 61, in order to ensure that the fastening portion 6212 is firmly connected to the engaging portion 31, the upper end of the connecting arm 621 extends to form a supporting portion 6211, the second limiting member 623 is fixedly disposed on the top surface of the cover plate 61 and is close to the connecting arm 621, one end of the first spring 622 is fixedly connected to the supporting portion 6211, and the other end of the first spring 622 is fixedly connected to the second limiting member 623, when the fastening portion 6212 is fastened to the engaging portion 31, because the first spring 622 supports the supporting portion 6211, the connecting arm 621 rotates on the cover plate 61 to clamp the fastening portion 6212 and the engaging portion 31, at this time, the fastening portion 6212 cannot be disengaged from the engaging portion 31, and when the connection between the cover plate 61 and the end surface limiting member 3 needs to be released, the supporting portion 6211 is shifted to rotate the connecting arm 621 in the opposite direction, so that the fastening portion 6212 and the engaging portion 31 can be disengaged.

In order to sufficiently compress the cover plate 61 and the battery pack S, in the present embodiment, a compression plate 63 is fixedly disposed on the bottom surface of the cover plate 61 along the length direction thereof, and the compression plate 63 is used for being attached to the surface of the battery pack S away from the pole. In this embodiment, the pressing plate 63 is made of an insulating material, and by arranging the pressing plate 63, the thickness of the cover plate 61 can be increased, so that the pressing plate 63 can be sufficiently attached to the top surface of the battery pack S when the battery pack S is pressed downwards.

In order to further improve the downward pressing force between the cover plate 61 and the battery module and prevent the single battery from sliding upwards, the top pressing mechanism 6 of this embodiment is further provided with a pre-tightening assembly 64, the pre-tightening assembly 64 includes a first fixing plate 641, a second fixing plate 642, a guide rod 643 and a second spring 644, a back-off slot 612 is formed on the bottom surface of one end of the cover plate 61 close to the buckle assembly 62, the first fixing plate 641 is horizontally and fixedly disposed on the bottom surface of the cover plate 61 and corresponds to the back-off slot 612, the second fixing plate 642 is horizontally disposed below the first fixing plate 641 and is used for contacting with the top surface of the end-surface limiting member 3, one end of the guide rod 643 is fixedly connected with the second fixing plate 642, the other end movably penetrates through the first fixing plate 641 and is connected with a third limiting member 645, the third limiting member 645 is opposite to the back-off slot 612, and the second spring 644 is sleeved on the guide rod 643. According to the arrangement, the cover plate 61 is driven to drive the pressing plate 63 to horizontally press the top surface of the battery pack S downwards, meanwhile, the buckle assembly 62 is used for carrying out buckle connection on the end surface limiting piece 3, in the downward pressing process of the cover plate 61, firstly, the second fixing plate 642 is in contact with the top surface of the end surface limiting piece 3, when the cover plate 61 continues to press downwards, the first fixing plate 641 compresses the second spring 644, the second fixing plate 642 moves downwards relative to the guide rod 643, the guide rod 643 extends into the avoiding groove 612, the distance between the first fixing plate 641 and the second fixing plate 642 is reduced, after the clamping portion 6212 and the clamping portion 31 are completely clamped, the second spring 644 performs bidirectional extrusion on the first fixing plate 641 and the second fixing plate 642 under the driving of the elastic force of the second spring 644, so that high-strength extrusion force is kept between the cover plate 61 and the battery pack S in the vertical direction, and the single battery is prevented from sliding upwards. In this embodiment, the third limiting element 645 can prevent the guide rod 643 from being separated from the first fixing plate 641.

Preferably, a handle 611 is fixedly arranged at one end, close to the buckle assembly 62, of the top surface of the cover plate 61, so that the cover plate 61 can be conveniently turned, and a fourth limiting member 412 used for limiting the turning of the cover plate 61 is arranged at the top of the fixing frame 41, so that the cover plate 61 can be prevented from being bent and broken with the fixing frame 41 in a transition of turning.

The utility model discloses a theory of operation is:

through fixed locating plate 5 that sets up of level on bottom plate 1, invert the group battery S that a plurality of battery cells arranged and formed, make the one side that battery cell has the utmost point post laminate with locating plate 5, utmost point post does not contact with locating plate 5, install the end plate additional at group battery S length direction both ends, install the curb plate additional on group battery S width direction both sides, through side extrusion mechanism 2, end face locating part 3 and end face extrusion mechanism 4 mutually support, accomplish the assembly extrusion of battery module on the horizontal direction, at this moment, under horizontal extrusion force effect, can take place relative slip along the direction of height when extruding between the battery cell, through top surface hold-down mechanism 6, extrude group battery S downwards, can be with all battery cells, make the one side that battery cell has the utmost point post laminate with locating plate 5, and then guarantee that battery cell has the utmost point post one side to be on same horizontal plane, realize battery module assembly extrusion from this, all battery cell utmost point posts are on same horizontal plane, avoid having welding precision and quality problem in follow-up busbar and utmost point post welding.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module assembling and extruding tool comprises a bottom plate (1), a side surface extruding mechanism (2), an end surface limiting piece (3) and an end surface extruding mechanism (4); wherein the content of the first and second substances,

the bottom plate (1) extends horizontally along the length direction, and the bottom plate (1) is used for placing a battery pack (S) formed by arranging a plurality of single batteries;

the two side extrusion mechanisms (2) are symmetrically arranged and are respectively positioned on two sides of the bottom plate (1) in the width direction, and the two side extrusion mechanisms (2) are matched with each other to extrude the battery pack (S) in the width direction;

the end face limiting piece (3) is fixedly arranged at one end of the bottom plate (1) in the length direction and used for limiting one end of the battery pack (S) in the length direction;

the end face extrusion mechanism (4) is fixedly arranged at one end of the bottom plate (1) far away from the end face limiting piece (3) and is used for moving towards the end face limiting piece (3) so as to extrude the length direction of the battery pack (S);

the method is characterized in that: the device also comprises a positioning plate (5) and a top surface pressing mechanism (6); wherein the content of the first and second substances,

the positioning plate (5) is positioned among the side surface extrusion mechanism (2), the end surface limiting piece (3) and the end surface extrusion mechanism (4) and is horizontally and fixedly connected with the top surface of the bottom plate (1), and the positioning plate (5) is used for being attached to one surface of the single battery with the pole;

and the top surface pressing mechanism (6) is horizontally arranged on one surface of the battery pack (S) far away from the pole and used for downwards extruding the battery pack (S) and matching with the positioning plate (5) to limit the movement of the single battery in the height direction.

2. The battery module assembling and extruding tool set forth in claim 1, wherein: side extrusion mechanism (2) are including mounting bracket (21), first stripper plate (22) and active grab (23), mounting bracket (21) is fixed to be set up on bottom plate (1) of locating plate (5) width direction one side, and active grab (23) is provided with two, sets up respectively at mounting bracket (21) length direction both ends, and first stripper plate (22) vertical setting is between locating plate (5) and mounting bracket (21), and two active grab (23) are connected with first stripper plate (22) respectively.

3. The battery module assembling and extruding tool set forth in claim 2, wherein: side extrusion mechanism (2) still include first slide rail (24), first slider (25) and connecting plate (26), first slide rail (24) parallel fixed set up at mounting bracket (21) top surface, and perpendicular with mounting bracket (21) length direction, two rapid clamp (23) are fixed respectively and are set up the both ends at connecting plate (26), the both ends of connecting plate (26) are respectively through first slider (25) and first slide rail (24) sliding connection, are provided with locating hole (27) that correspond each other on connecting plate (26) and mounting bracket (21).

4. The battery module assembling and extruding tool set forth in claim 1, wherein: end face extrusion mechanism (4) are including mount (41), extruded article (42) and lead screw (43), mount (41) are fixed to be set up on bottom plate (1) at the one end place of keeping away from end face locating part (3) locating plate (5), extruded article (42) slide and set up on mount (41), and can move towards end face extrusion mechanism (4) direction translation, the one end and the extrusion seat of lead screw (43) rotate to be connected, mount (41) are passed to the other end level of lead screw (43), and with mount (41) threaded connection, the one end fixedly connected with hand wheel (44) of extruded article (42) are kept away from in lead screw (43).

5. The battery module assembly extrusion tooling of claim 4, characterized in that: end face extrusion mechanism (4) still include second slide rail (45) and second slider (46), mount (41) bottom horizontally connect has sliding plate (411), second slide rail (45) horizontal fixation sets up on sliding plate (411), and be parallel to each other with lead screw (43), extruded piece (42) are including sliding seat (421) and second stripper plate (422), vertical fixed the setting on sliding seat (421) of second stripper plate (422), sliding seat (421) are through second slider (46) and second slide rail (45) sliding connection, the fixed first locating part (47) that are used for limiting extruded piece (42) displacement is provided with in one end that the fixing base was kept away from in sliding plate (411).

6. The battery module assembling and extruding tool set forth in claim 4, wherein: the top surface pressing mechanism (6) comprises a cover plate (61) and a buckle assembly (62), one end of the cover plate (61) is hinged to the top of the fixing frame (41), and the other end of the cover plate (61) is connected with the end face limiting piece (3) in a buckling mode through the buckle assembly (62).

7. The battery module assembling and extruding tool set forth in claim 6, wherein: buckle subassembly (62) include linking arm (621), first spring (622) and second locating part (623), linking arm (621) rotate to set up and are close to the one end of terminal surface locating part (3) at apron (61), and the upper end extension of linking arm (621) is formed with and supports portion (6211), second locating part (623) are fixed to be set up at apron (61) top surface, and are close to linking arm (621), the one end of first spring (622) with support portion (6211) fixed connection, the other end and second locating part (623) fixed connection, the one end that portion (6211) were held in keeping away from in linking arm (621) is provided with joint portion (6212), is provided with block portion (31) that are connected with joint portion (6212) on terminal surface locating part (3).

8. The battery module assembling and extruding tool set forth in claim 6, wherein: the bottom surface of the cover plate (61) is fixedly provided with a pressing plate (63) along the length direction of the bottom surface, and the pressing plate (63) is used for being attached to one surface, away from the pole, of the battery pack (S).

9. The battery module assembling and extruding tool set forth in claim 8, wherein: the top surface pressing mechanism (6) further comprises a pre-tightening assembly (64), the pre-tightening assembly (64) comprises a first fixing plate (641), a second fixing plate (642), a guide rod (643) and a second spring (644), an avoiding groove (612) is formed in the bottom surface of one end, close to the buckle assembly (62), of the cover plate (61), the first fixing plate (641) is horizontally and fixedly arranged on the bottom surface of the cover plate (61) and corresponds to the avoiding groove (612), the second fixing plate (642) is horizontally arranged below the first fixing plate (641) and is used for being in contact with the top surface of the end surface limiting piece (3), one end of the guide rod (643) is fixedly connected with the second fixing plate (642), the other end of the guide rod movably penetrates through the first fixing plate (641) and is connected with a third limiting piece (645), the third limiting piece (645) is over against the avoiding groove (612), and the second spring (644) is sleeved on the guide rod (643).

10. The battery module assembling and extruding tool set forth in claim 6, wherein: one end, close to the buckle assembly (62), of the top surface of the cover plate (61) is fixedly provided with a handle (611), and the top of the fixing frame (41) is provided with a fourth limiting piece (412) used for limiting the cover plate (61) to turn over.