CN218856025U

CN218856025U - Spacing frock is used in welding of electricity core busbar

Info

Publication number: CN218856025U
Application number: CN202320014437.5U
Authority: CN
Inventors: 张海军
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-04-14
Anticipated expiration: 2033-01-04

Abstract

The utility model provides a spacing frock is used in welding of electricity core busbar, it includes welded platform, wherein, welded platform is last to be provided with spacing chamber, spacing chamber and the utmost point post of electric core are corresponding for placing the busbar; the limiting clamp is arranged on the outer side of the limiting cavity and used for clamping the bus bar in the limiting cavity. Through the arrangement of the limiting clamp, the limiting clamp can be matched with the limiting cavity, and the limiting clamp can quickly clamp the busbar in the limiting cavity, so that the busbar is attached to the pole of the battery cell, the busbar is not easy to slide or shake relative to the pole, the time for placing the busbar is shortened, and the welding precision is improved; through the arrangement of the abutting parts, the contact area between the plurality of abutting parts and the bus bar can be increased, the bus bar can be clamped from a plurality of point positions, and therefore the clamping stability can be improved.

Description

Spacing frock is used in welding of electricity core busbar

Technical Field

The utility model relates to a battery welding technology field especially relates to a spacing frock is used in welding of electricity core busbar.

Background

The power battery pack can be formed by connecting the single batteries of the power battery pack in series or in parallel, so that various power requirements of an automobile are met, the electrodes of the single batteries are correspondingly connected to form the series or parallel connection between the single batteries, so that the power battery pack is formed, therefore, a busbar is required to be used for connecting the positive electrode and the negative electrode of the battery cell, the busbar is generally an aluminum plate or a copper plate, the existing welding positioning tool is positioned in the X-axis direction and the Y-axis direction, the fixing effect on the Z-axis direction cannot be achieved, the gap between the aluminum plate or the copper plate and the pole cannot be well controlled, and the condition of poor welding due to too large gap is easily caused.

Chinese patent publication No. CN109244284A discloses a battery cover plate assembly and a battery, which can directly fix a copper bar aluminum plate through a threaded connection part in addition to welding when the battery is grouped by providing a welding part and a threaded connection part for fixing on a pole, and can continue to weld the copper bar aluminum plate and the pole after fixing the copper bar aluminum plate on an external thread if the requirement for vibration is high.

According to the technical scheme, the inventor finds that the root cause is that the bus bar is inconvenient to limit, the bus bar is limited through the threads, the time for placing the bus bar can be prolonged, the use is inconvenient, and in order to solve the technical problem, the limiting tool for welding the convenient and limited battery cell bus bar is needed to be provided.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an electricity core busbar welding is with spacing frock, it can carry out spacing fixed to the busbar fast to save the required time of welding, improve welding efficiency, the busbar is difficult for sliding or rocks simultaneously, has improved welding precision.

The technical scheme of the utility model is realized like this: the utility model provides a spacing tool for welding a cell busbar, which comprises a welding platform, wherein,

a limiting cavity is arranged on the welding platform, corresponds to the pole of the battery cell and is used for placing the busbar;

also comprises a limit clamp, wherein,

the limiting clamp is arranged on the outer side of the limiting cavity and used for clamping the bus bar in the limiting cavity.

On the basis of the above technical solution, preferably, the position-limiting clamp includes a mounting plate, a clamping plate and an elastic member, wherein,

the mounting plate is fixed on the welding platform;

the clamping plate is rotatably arranged on the mounting plate, and one end of the clamping plate selectively abuts against the bus bar;

the elastic piece is arranged between the mounting plate and the clamping plate, one end of the elastic piece is connected with the mounting plate, and the other end of the elastic piece is connected with the clamping plate.

Further preferably, the limiting clamp further comprises a fixing shaft, the fixing shaft is fixed on the mounting plate, and the clamping plate is sleeved on the fixing shaft.

Still further preferably, the clamping plate includes a connecting portion, an abutting portion and a pressing portion, wherein,

the connecting part is of an annular structure and is sleeved on the fixed shaft;

the butting part is at least provided with one and is fixed on the connecting part for butting the bus bar;

the pressing part is fixed on the connecting part, one end of the elastic piece is connected with the pressing part, and the pressing part is used for pressing.

On the basis of the technical scheme, preferably, mounting grooves are formed in the mounting plates and the clamping plates and used for mounting the elastic piece.

On the basis of the technical scheme, preferably, the mounting plate is provided with a threaded hole, and the threaded hole is used for fixing the mounting plate and the welding platform.

On the basis of the above technical solution, preferably, the elastic member is a coil spring or a hydraulic support rod.

Preferably, the welding platform is provided with a plurality of positioning holes, and the positioning holes are used for positioning the welding platform.

Still further preferably, the limiting cavity is a square hole or a kidney-shaped hole.

The utility model discloses a spacing frock is used in welding of electricity core busbar has following beneficial effect for prior art:

(1) Through the arrangement of the limiting clamp, the limiting clamp can be matched with the limiting cavity, and the limiting clamp can quickly clamp the busbar in the limiting cavity, so that the busbar is attached to the pole of the battery cell, the busbar is not easy to slide or shake relative to the pole, the time required for placing the busbar is reduced, and the welding precision is improved;

(2) By arranging the abutting parts, the plurality of abutting parts can increase the contact area with the bus bar, and the bus bar can be clamped from a plurality of point positions, so that the clamping stability can be improved; and through the locating hole that sets up, can cooperate with the location frock of electric core for the utmost point post of electric core can correspond spacing chamber, further improves welding precision.

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 perspective view of a limiting tool for welding a cell busbar of the present invention;

fig. 2 is a top view of the limiting tool for welding the cell bus bar of the present invention;

fig. 3 is a schematic structural view of a limiting clamp in the limiting tool for welding the cell bus bar of the present invention;

fig. 4 is a front view of fig. 3 of the limiting tool for welding the cell bus bar of the present invention;

fig. 5 is the utility model discloses a fixed axle's schematic structure view in spacing frock is used in welding of electricity core busbar.

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 work all belong to the protection scope of the present invention.

As shown in fig. 1-5, the utility model discloses a spacing tool for welding a cell bus bar, which comprises a welding platform 1, specifically, the welding platform 1 can be made of non-metallic material, so as to prevent the welding platform 1 from connecting the positive pole and the negative pole of a cell, and prevent short circuit, wherein a spacing cavity 10 is arranged on the welding platform 1, and the spacing cavity 10 corresponds to the pole of the cell and is used for placing the bus bar; the bus bar clamping device further comprises a limiting clamp 2, wherein the limiting clamp 2 is arranged on the outer side of the limiting cavity 10 and used for clamping a bus bar in the limiting cavity 10.

Specifically, a plurality of limit cavities 10 distributed at equal intervals can be opened on the welding platform 1, the limit cavities 10 are divided into two lines and respectively correspond to the positive electrode and the negative electrode of the battery cell, and the number of the limit clamps 2 corresponds to the number of the limit cavities 10 one by one, so that copper plates or aluminum plates in each limit cavity 10 can be respectively clamped;

through foretell mode for spacing frock can adapt to different electric core modules, and the mode that flight welding was adopted simultaneously in a plurality of spacing chambeies 10 also can accelerate the welding process between whole busbar and the electric core, improves welding efficiency, and carry out spacing with copper tablet or aluminium tablet through spacing chamber 10, also can avoid the aversion of copper tablet or aluminium tablet, prevents that the short circuit between the electric core from striking sparks.

As a preferred embodiment, the spacing clip 2 comprises a mounting plate 21, a clamping plate 22 and an elastic member 23, wherein the mounting plate 21 is fixed on the welding platform 1; the clamp plate 22 is rotatably disposed on the mounting plate 21, and one end of the clamp plate selectively abuts against the bus bar; the elastic member 23 is disposed between the mounting plate 21 and the clamping plate 22, and has one end connected to the mounting plate 21 and the other end connected to the clamping plate 22.

Specifically, the installation of mounting panel 21 can be fixed with welding platform 1 by welding or bolt fastening, the central position of clamping plate 22 is hinged to the end of mounting panel 21, one end of clamping plate 22 points to the center of limiting cavity 10, so that the busbar can be conveniently supported, and an elastic part 23 can be installed between the other end of clamping plate 22 and mounting panel 21.

As a preferred embodiment, as shown in fig. 5, the position-limiting clamp 2 further includes a fixing shaft 24, the fixing shaft 24 is fixed on the mounting plate 21, and the clamping plate 22 is sleeved on the fixing shaft 24.

Specifically, be provided with the arc wall on the mounting panel 21, fixed axle 24 passes through welded fastening in the arc wall, and splint 22 is all run through at the both ends of its fixed axle 24, and splint 22 can be rotatory around fixed axle 24, whole simple structure, and stability is good, and is not fragile.

As a preferred embodiment, the clamping plate 22 includes a connecting portion 221, a holding portion 222 and a pressing portion 223, wherein the connecting portion 221 is of an annular structure and is sleeved on the fixing shaft 24; at least one abutting portion 222 is provided and fixed on the connecting portion 221 for abutting against the bus bar; the pressing portion 223 is fixed to the connecting portion 221, one end of the elastic member 23 is connected to the pressing portion 223, and the pressing portion 223 is used for pressing.

Specifically, as shown in fig. 4, the connecting portion 221 is of an annular structure, and is conveniently sleeved on the fixing shaft 24, when the bus bar fixing device is used, the pressing portion 223 can be pressed downward, so that the elastic member 23 is compressed under a force, the connecting portion 221 can rotate around the fixing shaft 24, the abutting portion 222 is lifted at this time, after the bus bar is placed in the limiting cavity 10, the pressing portion 223 is released, and the elastic member 23 rebounds and the abutting portion 222 is enabled to compress the bus bar.

In a preferred embodiment, the mounting plate 21 and the clamping plate 22 are both provided with mounting grooves 210, and the mounting grooves 210 are used for mounting the elastic members 23.

Specifically, through having seted up mounting groove 210, conveniently place the both ends of elastic component 23 in mounting groove 210 to it is fixed, convenient equipment to conveniently install elastic component 23.

In a preferred embodiment, the mounting plate 21 is provided with a threaded hole 220, and the threaded hole 220 is used for fixing the mounting plate 21 to the welding platform 1.

Specifically, through screw hole 220, conveniently fix mounting panel 21 on welded platform 1 through self tapping screw to can install mounting panel 21 fast, realize spacing clamp 2 and welded platform 1's integral type design, it is more convenient during the use.

In a preferred embodiment, the elastic member 23 is a coil spring or a hydraulic support rod.

Particularly, the common elastic element of the coil spring or the hydraulic support rod is used, so that the manufacturing is convenient, the cost is reduced, the stability is higher, the use is reliable, and the damage is not easy.

As a preferred embodiment, the welding platform 1 is provided with a plurality of positioning holes 11, and the positioning holes 11 are used for positioning the welding platform 1.

Specifically, the quantity of locating hole 11 has two at least, can accurately be connected with electric core module through locating hole 11, and the convenience docks with the location frock of electric core module to can improve the accuracy that welding platform 1 placed, improve welded precision.

In a preferred embodiment, the limiting cavity 10 is a square hole or a kidney-shaped hole.

Specifically, the size of spacing chamber 10 is bigger than the size of busbar to conveniently place the busbar in spacing chamber 10, through preliminary spacing in spacing chamber 10, can make the busbar place in preset position, make the busbar can laminate with the utmost point post of electric core, guarantee welded accuracy.

The working principle of the embodiment is as follows:

first, by pressing the pressing portion 223 downward, the elastic member 23 is forced to compress, the connecting portion 221 can rotate around the fixing shaft 24, and the abutting portion 222 is lifted;

then, after the bus bar is placed in the limiting cavity 10, the pressing part 223 is released, the elastic piece 23 rebounds and the abutting part 222 presses the bus bar;

spacing clamp 2 can cooperate with spacing chamber 10, and spacing clamp 2 can press from both sides the busbar in spacing chamber 10 fast tightly to make busbar and the utmost point post laminating of electric core, the difficult relative utmost point post of busbar slides or rocks

And finally, welding the busbar in the limiting cavity 10 and the pole of the battery cell in a flight welding mode.

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 limiting tool for welding a battery cell busbar comprises a welding platform (1),

a limiting cavity (10) is arranged on the welding platform (1), and the limiting cavity (10) corresponds to a pole of the battery cell and is used for placing a busbar;

the method is characterized in that: also comprises a limit clamp (2), wherein,

the limiting clamp (2) is arranged on the outer side of the limiting cavity (10) and used for clamping the bus bar in the limiting cavity (10).

2. The limiting tool for welding the cell bus bar of claim 1, wherein: the limiting clamp (2) comprises a mounting plate (21), a clamping plate (22) and an elastic piece (23),

the mounting plate (21) is fixed on the welding platform (1);

the clamping plate (22) is rotatably arranged on the mounting plate (21), and one end of the clamping plate selectively abuts against the bus bar;

the elastic piece (23) is arranged between the mounting plate (21) and the clamping plate (22), one end of the elastic piece is connected with the mounting plate (21), and the other end of the elastic piece is connected with the clamping plate (22).

3. The limiting tool for welding the cell bus bar of claim 2, wherein: the limiting clamp (2) further comprises a fixing shaft (24), the fixing shaft (24) is fixed on the mounting plate (21), and the clamping plate (22) is sleeved on the fixing shaft (24).

4. The limiting tool for welding the cell bus bar of claim 3, wherein: the splint (22) comprises a connecting part (221), a holding part (222) and a pressing part (223), wherein,

the connecting part (221) is of an annular structure and is sleeved on the fixed shaft (24);

the abutting part (222) is at least provided with one and is fixed on the connecting part (221) for abutting against the bus bar;

the pressing part (223) is fixed on the connecting part (221), one end of the elastic piece (23) is connected with the pressing part (223), and the pressing part (223) is used for pressing.

5. The limiting tool for welding the cell bus bar of claim 2, wherein: mounting grooves (210) are formed in the mounting plate (21) and the clamping plate (22), and the mounting grooves (210) are used for mounting the elastic piece (23).

6. The limiting tool for welding the cell bus bar of claim 2, wherein: the welding platform is characterized in that a threaded hole (220) is formed in the mounting plate (21), and the threaded hole (220) is used for fixing the mounting plate (21) and the welding platform (1).

7. The battery cell busbar welding limiting tool according to claim 2, characterized in that: the elastic part (23) adopts a coil spring or a hydraulic supporting rod.

8. The limiting tool for welding the cell bus bar of claim 1, wherein: a plurality of positioning holes (11) are formed in the welding platform (1), and the positioning holes (11) are used for positioning the welding platform (1).

9. The battery cell busbar welding limiting tool according to claim 1, characterized in that: the limiting cavity (10) is a square hole or a waist-shaped hole.