CN218694927U

CN218694927U - Busbar clamping tool

Info

Publication number: CN218694927U
Application number: CN202223012632.9U
Authority: CN
Inventors: 戴仕麟
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-24
Anticipated expiration: 2032-11-11

Abstract

The utility model provides a busbar presss from both sides tight frock, including the locating rack, support piece and the subassembly that compresses tightly, the locating rack is used for fixed battery module, the support piece cartridge is in order to support the busbar on the locating rack, it is including being used for installing the installed part to the external drive unit to compress tightly the subassembly, and locate a plurality of units that compress tightly on the installed part, each compresses tightly the unit and all locates the compressing tightly piece on the installed part including sliding, and locate the return spare that compresses tightly between piece and the installed part, each compresses tightly and all is equipped with the via hole that supplies outside soldered connection to pass on the piece, when compressing tightly the subassembly and being close to the locating rack, compress tightly the utmost point ear that corresponds along with each compressing tightly, the return spare energy storage, and can press from both sides utmost point ear and busbar tightly between compressing tightly piece and support piece. The utility model discloses a busbar presss from both sides tight frock supports the busbar through setting up support piece, is equipped with simultaneously above the busbar and compresses tightly the subassembly, and both set up simultaneously and are used for pressing from both sides tight busbar and utmost point ear, are favorable to improving the welding effect to busbar and utmost point ear.

Description

Busbar clamping tool

Technical Field

The utility model relates to a battery module technical field, in particular to busbar presss from both sides tight frock.

Background

The soft package battery is a battery packaged by taking an aluminum plastic film as a shell, has the characteristics of flexible size design, high energy density, light weight and the like, is widely applied to the industry of new energy vehicles, and positive and negative electrode lugs of a plurality of soft package batteries are connected in series and/or in parallel to form a battery module to become a basic power unit of electric facilities such as electric vehicles. When the tabs of a plurality of cells are connected in series and/or parallel, it is common to weld the cell tabs individually to the bus bars.

Among traditional laser welding mode, busbar welding frock uses the frock to compress tightly the back with all electric core utmost point ears on the module and uses laser welding together with the busbar, makes the busbar take place deformation easily and leads to middle position rosin joint and deep-fry welding, and different positions compress tightly the inconsistent part welding position rosin joint that leads to of state moreover. In addition, the battery cell tabs and the bus bar are independently pressed and welded, so that the welding efficiency is very low.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a busbar clamping frock to improve the welding effect of busbar and battery tab.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a busbar presss from both sides tight frock for press from both sides utmost point ear and the busbar of tight battery module, it includes to press from both sides tight frock:

the positioning frame is used for fixing the battery module;

the supporting piece is inserted on the positioning frame to support the bus bar;

the compressing assembly comprises a mounting piece and a plurality of compressing units, the mounting piece is used for being mounted on an external driving unit, the compressing units are arranged on the mounting piece and correspond to the lugs one to one, each compressing unit comprises a compressing piece and a return piece, the compressing piece is arranged on the mounting piece in a sliding mode, the return piece is arranged between the compressing piece and the mounting piece, and a through hole for an external welding head to pass through is formed in each compressing piece;

when the pressing assembly is close to the positioning frame, the corresponding tabs are pressed by the pressing pieces, and the return pieces store energy so as to clamp the tabs and the bus bar between the pressing pieces and the supporting pieces; when the pressing assembly is far away from the positioning frame, the return piece releases energy, so that the pressing piece can be reset.

Furthermore, a connecting part connected between two side walls of the via hole is arranged in the via hole, and the connecting part is arranged at one end of the via hole close to the supporting part;

the via hole includes the bar hole, connecting portion are located bar hole length direction's middle part.

Further, the pressing piece comprises a pressing main body and a top plate, the pressing main body is connected to one side of the top plate, and the pressing main body is used for pressing the tab;

the mounting part is provided with a containing groove capable of containing the top plate.

Furthermore, a guide mechanism is arranged on the mounting piece, and the guide mechanisms and the pressing pieces are correspondingly arranged to guide the pressing pieces to slide relative to the mounting piece.

Furthermore, the two sides of each pressing piece are respectively provided with the guide mechanism, each guide mechanism comprises a guide column connected to the mounting piece, and a blocking part arranged at one end, far away from the mounting piece, of each guide column;

the return piece comprises a spring sleeved on the guide post, one end of the spring is abutted against the blocking portion, and the other end of the spring is abutted against the pressing piece.

Furthermore, the positioning frame comprises a bottom plate, two side plates respectively arranged at two sides of the bottom plate, and a connecting plate connected between the two side plates;

the bottom plate, two curb plate, enclose to form between the connecting plate and have accommodation space, one side of accommodation space is equipped with uncovered to make battery module can pass through uncovered entering in the accommodation space.

Furthermore, a positioning part used for limiting the installation position of the battery module is arranged in the accommodating space, and the positioning part comprises a first positioning part and a second positioning part which are arranged at intervals up and down;

the first positioning part comprises two upper positioning parts which are respectively arranged on the two side plates so as to limit the installation position of the upper part of the battery module; the second positioning part includes two lower positioning parts respectively disposed on the two side plates to define a mounting position of a lower portion of the battery module.

Furthermore, two upper positioning pieces are respectively provided with a limiting part;

when the pressing assembly is close to the positioning frame, the mounting piece can abut against the limiting part to limit the downward moving position of the mounting piece.

Furthermore, go up the setting element with all be equipped with on the setting element down and be used for dodging the groove is dodged to battery module, the length direction who dodges the groove with battery module's insertion direction is unanimous.

Furthermore, the supporting piece comprises a connecting body and a plurality of supporting split bodies, the supporting split bodies are connected to one side of the connecting body side by side, and the bus bar is supported by the supporting split bodies together;

each locating rack is provided with a magnetic part, the connector is provided with a magnetic matching part corresponding to each magnetic part, and the connector fixes the support piece on the locating rack through the magnetic force between the corresponding magnetic part and the magnetic matching part.

Compared with the prior art, the utility model discloses following advantage has:

busbar clamp frock, support the busbar through setting up support piece, be equipped with simultaneously above the busbar and compress tightly the subassembly, both set up simultaneously and are used for pressing from both sides tight busbar and utmost point ear, are favorable to improving the welding effect to busbar and utmost point ear.

In addition, be equipped with the connecting portion of connecting between two lateral walls of via hole in the via hole, and this connecting portion are located bar hole length direction's middle part, are favorable to improving the roughness to compressing tightly of busbar. Be equipped with the hole of dodging that is used for dodging to compress tightly the unit on the installed part, avoid producing the interference to compressing tightly the unit. And a guide mechanism is arranged on the mounting part and used for guiding the sliding of the pressing part and avoiding the shaking of the pressing part. The guide mechanism is set to be the guide post, and the return piece is set to be the spring, so that the structure is simple and the arrangement is convenient.

In addition, be equipped with location portion in the accommodation space that forms on the locating rack to inject battery module's mounted position, be favorable to improving battery module's installation accuracy. Be equipped with spacing portion on two last setting elements, can restrict the pushing down position that compresses tightly the subassembly, all be equipped with on last setting element and lower setting element and dodge the groove, make things convenient for battery module's installation. The support piece comprises a connector and support split bodies, the bus bars are supported by the support split bodies together, welding point positions corresponding to the support split bodies can be mutually independent, and welding quality of the bus bars is improved.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a bus bar clamping tool according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a side view of the hold down assembly of FIG. 1;

FIG. 4 is a cross-sectional view of a portion of the structure of FIG. 3 at A;

fig. 5 is an exploded view of a hold-down assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a pressing member according to an embodiment of the present invention;

fig. 7 is a schematic structural view of the pressing member according to another view angle in the embodiment of the present invention;

fig. 8 is a schematic structural diagram of a supporting member according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a support split according to an embodiment of the present invention;

fig. 10 is a top view of an upper positioning member according to an embodiment of the present invention.

Description of reference numerals:

1. a positioning frame; 101. a base plate; 102. a side plate; 103. a connecting plate; 104. an upper positioning member; 1041. a limiting part; 1042. a magnetic attraction matching part; 105. a lower positioning member; 1051. an avoidance groove; 106. supporting ribs; 107. a support plate;

2. a support member; 201. a linker; 202. supporting the split bodies; 203. a magnetic part; 204. a bolt;

3. a compression assembly; 301. a mounting member; 3011. a first mounting plate; 30111. avoiding holes; 3012. a second mounting plate; 30121. accommodating grooves; 3013. a guide mechanism; 30131. a guide post; 30132. a blocking part; 302. a compression member; 3021. a via hole; 3022. a connecting portion; 3023. a top plate; 3024. compressing the main body; 303. a spring; 4. and a cylinder.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a bus bar clamping tool which is used for clamping a lug and a bus bar of a battery module. In the overall structure, as shown in fig. 1, the clamping tool includes a positioning frame 1, a supporting member 2 and a pressing assembly 3. Wherein, locating rack 1 is used for fixed battery module, and support piece 2 cartridge is on locating rack 1 to support the busbar. The pressing assembly 3 comprises a mounting piece 301 for mounting on an external driving unit, and a plurality of pressing units arranged on the mounting piece 301, the pressing units correspond to the tabs one by one, each pressing unit comprises a pressing piece 302 arranged on the mounting piece 301 in a sliding manner, and a return piece arranged between the pressing piece 302 and the mounting piece 301, and each pressing piece 302 is provided with a through hole 3021 for an external welding head to pass through.

When the pressing assembly 3 is close to the positioning frame 1, the corresponding tabs are pressed along with the pressing pieces 302, and at the moment, the return pieces store energy, so that the tabs and the bus bar can be clamped between the pressing pieces 302 and the supporting piece 2; when the pressing component 3 is far away from the positioning frame 1, the return piece releases energy, so that the pressing piece 302 can be reset.

The busbar clamping tool of this embodiment supports the busbar through setting up support piece 2, is equipped with simultaneously above the busbar and compresses tightly subassembly 3, and both set up simultaneously and are used for pressing from both sides tight busbar and utmost point ear, are favorable to improving the welding effect to busbar and utmost point ear.

Based on the above general description of the structure, an exemplary structure of the bus bar clamping tool of the present embodiment is shown in fig. 1, and the positioning frame 1 includes a bottom plate 101, two side plates 102 respectively disposed at two sides of the bottom plate 101, and a connecting plate 103 connected between the two side plates 102. And, the bottom plate 101, two curb plates 102, connecting plate 103 enclose to form between them and have an accommodation space, and the front side of accommodation space is equipped with the uncovered to make battery module can get into in the accommodation space through this uncovered. Meanwhile, in order to ensure the stability of the whole positioning frame 1, a plurality of support ribs 106 are arranged between the side plate 102 and the bottom plate 101 for reinforcing the connection between the side plate and the bottom plate and enhancing the support strength of the side plate 102.

In order to facilitate the battery module to enter the accommodating space, as a preferred embodiment, referring to fig. 1, a positioning part for defining the installation position of the battery module is provided in the accommodating space, and the positioning part includes a first positioning part and a second positioning part which are arranged at an interval from top to bottom. And preferably, the first positioning part includes two upper positioning members 104 which are partially disposed on the two side plates 102 to define the installation position of the upper part of the battery module. And the second positioning part includes two lower positioning members 105 disposed on the two side plates 102, respectively, to define the installation position of the lower portion of the battery module. The upper positioning element 104 and the lower positioning element 105 are preferably positioning blocks, which are simple in structure and convenient to set. Of course, the positioning member may be provided in other structures, and is not limited in particular.

In a preferred embodiment, the upper retainer 104 and the lower retainer 105 are each provided with an escape groove 1051 for escaping the battery module, and the longitudinal direction of the escape groove 1051 coincides with the insertion direction of the battery module. Referring to fig. 1, the escape groove 1051 of the upper positioning member 104 is formed at the middle position of the upper positioning member 104, and the escape groove 1051 of the lower positioning member 105 is formed at the lower side position of the lower positioning member 105 to adapt to the external shape of the battery module. It is understood that the opening position and the opening shape of the avoiding groove 1051 may be adaptively changed according to the shape of the battery module, and are not particularly limited herein.

The above-described mounting member 301 is supported above the side plate 102, and referring to fig. 1, the mounting member 301 can be urged toward or away from the side plate 102 by an external driving unit such as the cylinder 4. As a preferred embodiment, as shown in fig. 2 to 5, the mount 301 includes a first mounting plate 3011 for mounting to an external drive unit, and a second mounting plate 3012 provided on the first mounting plate 3011. Each of the pressing units is mounted on the second mounting plate 3012, and an avoidance hole 30111 for avoiding the pressing unit is formed in the first mounting plate 3011.

Specifically, as shown in fig. 2 and 5, a rectangular avoiding hole 30111 is formed in the middle of the first mounting plate 3011, a second mounting plate 3012 is connected to the bottom of the avoiding hole 30111, and the second mounting plate 3012 is connected to the first mounting plate 3011 through external bolts and other fasteners all around. The plurality of pressing units are arranged on the second mounting plate 3012 and are located in the avoiding holes 30111.

As shown in fig. 6 and fig. 7, the pressing member 302 includes a pressing body 3024 and a top plate 3023, the pressing body 3024 is connected to the lower side of the top plate 3023 to press the cell tab, the pressing body 3024 is shaped as a concave cone, a through hole 3021 penetrating up and down is formed in the middle of the pressing member 302, and the inner wall of the through hole 3021 is shaped as a cone to facilitate external welding. In a preferred embodiment, a connection portion 3022 is disposed in the via 3021 and connected between two sidewalls of the via 3021, and the connection portion 3022 is disposed at an end of the via 3021 close to the support 2. And preferably, the via hole 3021 includes a strip-shaped hole, and the connecting portion 3022 is located at the middle of the length direction of the strip-shaped hole. When the pressing piece 302 approaches the busbar, the connection portion 3022 can increase the contact area between the pressing piece 302 and the busbar, thereby improving the flatness of pressing the busbar.

In a preferred embodiment, the second mounting plate 3012 is provided with a guide mechanism 3013, and the plurality of guide mechanisms 3013 and the plurality of pressing members 302 are provided in correspondence to each other so as to guide the respective pressing members 302 to slide with respect to the second mounting plate 3012.

Referring to fig. 5, guide mechanisms 3013 are disposed on both sides of each pressing member 302 to ensure the stability of the moving process of the pressing members 302. In a preferred embodiment, each guide mechanism 3013 includes a guide post 30131 connected to the second mounting plate 3012, and a stopper portion 30132 provided at an end of the guide post 30131 distant from the second mounting plate 3012. One end of the guide post 30131 is fixedly connected to the second mounting plate 3012, and the pressing member 302 can slide up and down along the guide post 30131.

As a preferred embodiment, the guide post 30131 and the stop portion 30132 at the end of the guide post 30131 may be configured as a countersunk screw, one end of which is connected to the second mounting plate 3012 in a threaded manner, and the upper side of the countersunk screw is a smooth side wall, so that the second mounting plate 3012 can slide along the countersunk screw.

It should be noted that, in this embodiment, due to the space limitation of the pouch battery pack, the pressing member 302 is generally provided with a countersunk screw on each of two sides thereof for connection. However, since the two countersunk head screws easily cause the shaking of the pressing state, in the embodiment, as shown in fig. 5, the top plate 3023 of the pressing piece 302 is provided in a square shape, and a concave receiving groove 30121 is provided on the second mounting plate 3012 corresponding to the top plate 3023, so that the top plate 3023 can be received in the receiving groove 30121, thereby limiting the shaking of the pressing piece 302.

In a preferred embodiment, the return member includes a spring 303 sleeved on the guide post 30131, one end of the spring 303 abuts against the stop portion 30132, and the other end abuts against the pressing member 302. Referring to fig. 3 and 4, one end of the spring 303 abuts on the tip of the countersunk head screw, and the other end of the spring 303 abuts on the upper surface of the pressing piece 302. When the second mounting plate 3012 is depressed so that the compression member 302 slides up the countersunk screw, the spring 303 is compressed to charge energy, and when the second mounting plate 3012 moves up, the spring 303 is released to drive the compression member 302 down the countersunk screw.

In the present embodiment, as a preferred embodiment, referring to fig. 8 and 9, the support member 2 includes a connection body 201 and a plurality of support division bodies 202, the plurality of support division bodies 202 are connected to one side of the connection body 201 side by side, and the plurality of support division bodies 202 support the bus bar in common. Among them, it should be noted that the end of each support division 202 is provided in a stepped shape, so that the support division 202 is conveniently inserted between the battery module and the bus bar.

As a preferred embodiment, as shown in fig. 8 and 10, each positioning frame 1 is provided with a magnetic portion 203, and the connecting body 201 is provided with a magnetic engaging portion 1042 corresponding to each magnetic portion 203, and the connecting body 201 fixes the supporting member 2 on the positioning frame 1 by the magnetic force between the corresponding magnetic portion 203 and the magnetic engaging portion 1042. As a preferred embodiment, the magnetic part 203 is disposed on the upper positioning member 104, so as to reduce the manufacturing cost of the connecting body 201 in the supporting member 2 and reduce the space occupied by the supporting member 2. It is understood that the magnetic part 203 can also be disposed on the side plate 102 of the positioning frame 1, and the two ends of the connecting body 201 extend to the magnetic matching part 1042 to be able to match and connect with the magnetic part 203. The setting may be made according to the actual situation, and is not limited specifically herein.

In order to improve the installation accuracy of the supporting member 2 on the two upper positioning members 104, as a preferred embodiment, referring to fig. 8, two ends of the connecting body 201 are respectively provided with a plug 204, and at the same time, two slots are provided on the two upper positioning members 104 for the plug 204 to be inserted into so as to position the insertion of the supporting member 2.

In addition, it should be noted that, in the present embodiment, the tops of the two upper positioning members 104 are both provided with steps, when the supporting member 2 is integrally inserted into the battery module, the supporting split 202 is inserted into the battery module through a gap, and the two ends of the connecting member 201 are abutted against the two upper positioning members 104 and are respectively disposed on the upper surfaces of the two steps, so as to support the two ends of the connecting member 201 by the two upper positioning members 104, thereby ensuring the stability of the supporting member 2.

Meanwhile, in order to ensure the stability of the supporting member 2, in the embodiment, as shown in fig. 1 and 10, a supporting plate 107 is fixedly arranged on the connecting plate 103 through bolts, and the supporting plate 107 is located on the same horizontal line with the two upper positioning members 104, and is used for supporting the end of each supporting split body 202, so as to improve the mounting stability of the supporting member 2.

In addition, in this embodiment, the two upper positioning members 104 are provided with limiting portions 1041. When the pressing component 3 approaches the positioning frame 1, the mounting member 301 can abut against the limiting portion 1041 to limit the downward moving position of the mounting member 301. Referring to fig. 1, the limiting portion 1041 is configured as a limiting pin, and a plurality of limiting pins are disposed on each of the two upper positioning members 104, and when the second mounting plate 3012 moves downward, the limiting pins can abut against the bottom of the second mounting plate 3012 to limit the second mounting plate 3012 to move downward continuously. In this embodiment, the limiting portion 1041 is configured as a limiting pin, which is simple in structure and convenient for design and processing, and of course, in this embodiment, the limiting portion 1041 may also be configured as another limiting structure, which is not specifically limited herein.

In addition, for the insertion of the battery module of different sizes, the two upper positioning members 104 in this embodiment are slidably disposed on the two side plates 102, and a guide groove is disposed in the middle of the side plates 102, so as to facilitate the installation of the upper positioning member 104, and maintain the verticality of the upper positioning member 104 during the sliding process of the upper positioning member 104.

When the bus bar clamping tool of the embodiment is used, the battery module is inserted between the positioning parts of the two side plates 102, after the battery module is placed, the support piece 2 is inserted into the battery module corresponding to the tabs, and the support piece 2 is fixed below the tabs and the bus bar through the magnetic attraction part 203 and the magnetic attraction matching part 1042. The external cylinder 4 is started, the first mounting plate 3011 and the second mounting plate 3012 are driven to press down, the bottom of the pressing piece 302 contacts with the bus bar and is driven to move upwards relative to the second mounting plate 3012, the spring 303 is compressed to start energy storage, the spring 303 drives the pressing piece 302 to abut against the bus bar and the pole lug through the elastic force of the pressing piece 302, and after the bus bar and the pole lug are pressed tightly, external welding equipment welds the bus bar and the pole lug through a welding hole in the pressing piece 302.

After welding, the first mounting plate 3011 and the second mounting plate 3012 are driven to move upwards by the air cylinder 4, the pressing piece 302 moves downwards relative to the second mounting plate 3012 under the action of the spring 303, and resetting of the pressing piece 302 relative to the second mounting plate 3012 is completed. In addition, the support piece 2 is taken out, the welded battery module is taken out, and the next battery module is conveniently welded.

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. The utility model provides a busbar presss from both sides tight frock for press from both sides utmost point ear and the busbar of tight battery module, its characterized in that, press from both sides tight frock and include:

the positioning frame (1) is used for fixing the battery module;

the supporting piece (2) is inserted on the positioning frame (1) to support the bus bar;

the pressing assembly (3) comprises a mounting piece (301) used for being mounted on an external driving unit, and a plurality of pressing units arranged on the mounting piece (301), the pressing units correspond to the lugs in a one-to-one mode, each pressing unit comprises a pressing piece (302) arranged on the mounting piece (301) in a sliding mode, and a return piece arranged between the pressing piece (302) and the mounting piece (301), and each pressing piece (302) is provided with a through hole (3021) for an external welding head to pass through;

when the pressing assembly (3) is close to the positioning frame (1), the corresponding tabs are pressed by the pressing pieces (302), and the return pieces store energy so that the tabs and the bus bar can be clamped between the pressing pieces (302) and the supporting pieces (2); when the pressing assembly (3) is far away from the positioning frame (1), the return piece releases energy, so that the pressing piece (302) can be reset.

2. The busbar clamping tool according to claim 1, wherein:

a connecting part (3022) connected between two side walls of the via hole (3021) is arranged in the via hole (3021), and the connecting part (3022) is arranged at one end of the via hole (3021) close to the support part (2);

the via hole (3021) comprises a strip-shaped hole, and the connecting portion (3022) is located in the middle of the length direction of the strip-shaped hole.

3. The busbar clamping tool according to claim 1, wherein:

the pressing piece (302) comprises a pressing main body (3024) and a top plate (3023), wherein the pressing main body (3024) is connected to one side of the top plate (3023) to press the tab;

the mounting piece (301) is provided with an accommodating groove (30121) capable of accommodating the top plate (3023).

4. The busbar clamping tool according to claim 1, wherein:

the mounting piece (301) is provided with a guide mechanism (3013), and the guide mechanisms (3013) and the pressing pieces (302) are arranged correspondingly to guide the pressing pieces (302) to slide relative to the mounting piece (301).

5. The bus bar clamping tool according to claim 4, characterized in that:

the guide mechanisms (3013) are arranged on two sides of each pressing piece (302), each guide mechanism (3013) comprises a guide column (30131) connected to the mounting piece (301), and a blocking part (30132) arranged at one end, far away from the mounting piece (301), of each guide column (30131);

the return piece comprises a spring (303) sleeved on the guide column (30131), one end of the spring (303) abuts against the blocking portion (30132), and the other end of the spring (303) abuts against the pressing piece (302).

6. The busbar clamping tool according to any one of claims 1 to 5, wherein:

the positioning frame (1) comprises a bottom plate (101), two side plates (102) respectively arranged on two sides of the bottom plate (101), and a connecting plate (103) connected between the two side plates (102);

an accommodating space is formed among the bottom plate (101), the two side plates (102) and the connecting plate (103), and an opening is formed in one side of the accommodating space so that the battery module can enter the accommodating space through the opening.

7. The busbar clamping tool according to claim 6, wherein:

a positioning part used for limiting the installation position of the battery module is arranged in the accommodating space, and the positioning part comprises a first positioning part and a second positioning part which are arranged at intervals up and down;

the first positioning part comprises two upper positioning parts (104) which are respectively arranged on the two side plates (102) so as to limit the installation position of the upper part of the battery module; the second positioning part comprises two lower positioning pieces (105) which are respectively arranged on the two side plates (102) so as to limit the installation position of the lower part of the battery module.

8. The bus bar clamping tool according to claim 7, characterized in that:

limiting parts (1041) are arranged on the two upper positioning pieces (104);

when the pressing assembly (3) is close to the positioning frame (1), the mounting piece (301) can abut against the limiting part (1041) so as to limit the downward moving position of the mounting piece (301).

9. The bus bar clamping tool according to claim 7, characterized in that:

go up setting element (104) with all be equipped with on lower setting element (105) and be used for dodging battery module dodge groove (1051), the length direction who dodges groove (1051) with battery module's inserting direction is unanimous.

10. The busbar clamping tool according to any one of claims 1 to 5, characterized in that:

the support piece (2) comprises a connecting body (201) and a plurality of support split bodies (202), the support split bodies (202) are connected to one side of the connecting body (201) side by side, and the bus bars are supported by the support split bodies (202) together;

each locating rack (1) is provided with a magnetic part (203), the connecting body (201) is provided with a magnetic matching part (1042) corresponding to each magnetic part (203), and the connecting body (201) is fixed on the locating rack (1) through the magnetic force between the corresponding magnetic part (203) and the magnetic matching part (1042).