CN220462724U

CN220462724U - Battery piece welding mechanism and battery piece welding production line

Info

Publication number: CN220462724U
Application number: CN202322226626.1U
Authority: CN
Inventors: 朱亮; 卢嘉彬; 曹建伟; 傅林坚; 高红刚; 张剑光; 郭伟强; 袁彬
Original assignee: Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Current assignee: Zhejiang Jingsheng Mechanical and Electrical Co Ltd
Priority date: 2023-08-17
Filing date: 2023-08-17
Publication date: 2024-02-09
Anticipated expiration: 2033-08-17

Abstract

The application relates to the photovoltaic cell field, especially relates to a battery piece welding mechanism and battery piece welding production line, include: a base; the hot pressing assembly comprises a hot pressing piece, wherein the hot pressing piece has a degree of freedom of downward movement, and the hot pressing piece acts on the battery piece downwards to perform hot pressing welding; and a release assembly, the release assembly comprising: the mounting seat is fixedly connected to the base; the insulating piece can conduct heat, the insulating piece connect in on the mount pad, the insulating piece is at least partly passed between hot pressing piece and the battery piece, make the hot pressing piece downwards pass through the insulating piece is indirect to be pressed and is acted on the battery piece. The technical problem of low battery string welding quality is solved, and the technical effect of improving the battery string welding quality is achieved.

Description

Battery piece welding mechanism and battery piece welding production line

Technical Field

The application relates to the field of photovoltaic cells, in particular to a cell welding mechanism and a cell welding production line.

Background

With the development of photovoltaic technology, in order to improve the electric energy conversion rate of the battery pieces, a plurality of battery pieces are mutually overlapped and welded together through welding strips, so that a battery string is formed; therefore, in order to meet the above-mentioned process requirements, a welding device for welding the battery pieces to form a battery string is inoculated.

In the prior art, the battery pieces are connected through welding strips, and the welding strips are firstly required to be welded on the flat battery pieces, so that the welding strips are required to be arranged on the surfaces of the battery pieces, and the welding strips and the battery pieces are welded after being heated and solidified; generally, for the welding process between the battery pieces, the welding of the battery pieces is realized by adopting a hot pressing process, after the conductive adhesive is coated, the hot pressing piece acts on the battery pieces and/or the welding strips, adhesion is easy to occur between the conductive adhesive and the hot pressing piece, so that follow-up hot pressing pieces are heated unevenly to cause virtual welding of the welding strips, and the welding quality of the battery pieces is reduced.

Therefore, the technical problems of the prior art are: the battery string welding quality is low.

Disclosure of Invention

The application provides a battery piece welding mechanism and battery piece welding production line, has solved the low technical problem of battery string welding quality, reaches the technological effect that improves battery string welding quality.

On the one hand, the battery piece welding mechanism provided by the application adopts the following technical scheme:

a battery tab welding mechanism comprising: a base; the hot pressing assembly comprises a hot pressing piece, wherein the hot pressing piece has a degree of freedom of downward movement, and the hot pressing piece acts on the battery piece downwards to perform hot pressing welding; and a release assembly, the release assembly comprising: the mounting seat is fixedly connected to the base; the insulating piece can conduct heat, the insulating piece connect in on the mount pad, the insulating piece is at least partly passed between hot pressing piece and the battery piece, make the hot pressing piece downwards pass through the insulating piece is indirect to be pressed and is acted on the battery piece.

Preferably, the welding space is formed below the hot pressing member, the battery piece is located in the welding space and is subjected to hot pressing welding, the mounting seat is provided with two mounting portions, the mounting portions are located on two sides of the welding space, the insulating member is connected to the two mounting portions, and the insulating member penetrates through the welding space.

Preferably, the insulating member is deformable.

Preferably, the anti-sticking assembly further comprises a transmission member comprising: the rollers are arranged on each mounting part, and the isolating piece is wound between the rollers; and the rotating part is connected with the mounting part and acts on the roller, so that the roller drives the isolation piece to drive.

Preferably, the roller includes: a first wheel for winding the insulation; a second wheel for winding the insulation member, the second wheel and the second wheel being disposed on opposite mounting portions; and a third wheel, at least two, for guiding the insulation member.

Preferably, the isolating member is parallel to the plane of the battery piece and/or the acting surface of the hot pressing member.

Preferably, the hot press assembly further includes: the driving piece is arranged in a first direction, the first direction is perpendicular to the plane where the battery piece is located, and the driving piece is connected with the hot pressing piece.

Preferably, the driving member is fixedly connected to the mounting base.

Preferably, the hot press comprises; the connecting part is connected to the driving piece; the hot pressing knife is fixedly connected to the connecting part, and the hot pressing knife is electrified and heated.

On the other hand, the battery piece welding production line provided by the application adopts the following technical scheme:

a battery piece welding production line, which is characterized by comprising the battery piece welding mechanism.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hot pressing piece acts on the battery piece and realizes the hot pressing welding to the battery piece, through setting up the one deck insulating member between hot pressing piece and battery piece for the hot pressing piece passes through the insulating member and indirectly acts on the battery piece, prevents hot pressing piece and battery piece direct contact, has avoided scaling powder on the battery piece, solder tin etc. on the welding strip to adhere to on the hot pressing piece and lead to the battery piece to be heated unevenly, thereby improves battery piece welding quality.

2. The insulating piece can deform and adapt to the shape of the hot pressing piece to deform, and the hot pressing piece is pressed down to deform the insulating piece, so that the attaching effect of the hot pressing piece on the battery piece is improved, and the battery piece is heated uniformly; meanwhile, the deformable isolation piece only penetrates through the welding space technology, and the position of the isolation piece in the welding space is not required to be controlled, so that the installation and the debugging are facilitated.

3. The isolation piece is wound on the roller, the isolation piece is wound through the transmission of the roller, so that the contact position between the isolation piece and the hot pressing piece is changed, the hot pressing piece is pressed down to the isolation piece each time to be an unused isolation piece, the pollution to the hot pressing piece is further prevented, and the welding quality is improved.

Drawings

FIG. 1 is a schematic view of a welding mechanism as described herein;

FIG. 2 is a front view of the welding mechanism described herein;

figure 3 is a schematic view of a release assembly of the welding mechanism described herein.

Reference numerals illustrate: 100. a base; 200. a hot pressing assembly; 210. a hot press; 211. a hot pressing knife; 212. a connection part; 220. a driving member; 300. welding space; 400. a release assembly; 410. a mounting base; 411. a mounting part; 420. an insulating member; 430. a transmission member; 431. a roller; 4311. a first wheel; 4312. a second wheel; 4313. a third wheel; 432. and a rotating part.

Detailed Description

The numbering of the components itself, e.g. "first", "second", etc., is used herein merely to distinguish between the described objects and does not have any sequential or technical meaning. The terms "coupled" and "connected," as used herein, are intended to encompass both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

The embodiment provides a battery piece welding mechanism, which is used for hot-press welding between battery pieces so as to obtain a battery string structure in strings, as shown in fig. 1, and comprises a base 100, a hot-press assembly 200 and an anti-sticking assembly 400, wherein the base 100 is used as a bearing or mounting foundation of the hot-press assembly 200, the anti-sticking assembly 400 and the battery pieces; the hot-press assembly 200 is used for hot-press welding the battery piece; the release assembly 400 serves to isolate the hot press assembly 200 from the battery cells to prevent the hot press assembly 200 from directly contacting the battery cells.

The base 100, as shown in fig. 1, the base 100 is used as a bearing or mounting base for the hot press assembly 200, the anti-sticking assembly 400, and the battery cells. The base 100 has a plane for mounting the hot-pressing assembly 200 and the anti-sticking assembly 400, and is also used for carrying the battery piece, in other words, the battery piece is transported on the base 100 along a preset route, and is output after being pressed and welded by the hot-pressing assembly 200, so that the welding process of the battery piece is completed; in one embodiment, the battery sheet transport structure may take the form of a rail or other motion carrier.

The thermocompression bonding assembly 200, as shown in fig. 1 and 2, the thermocompression bonding assembly 200 is used for thermocompression bonding a battery sheet. The hot pressing assembly 200 comprises a hot pressing member 210 and a driving member 220, wherein the hot pressing member 210 is used for contacting with the battery piece, so that the battery piece is heated to finish welding; the driving member 220 is used to drive the thermal compression assembly 200 to displace so as to be able to act on the battery plate or reset.

The heat pressing member 210, as shown in fig. 1 and 2, is used to contact the battery cell such that the battery cell is heated to complete welding. The hot press 210 includes a connection part 212 and a hot press blade 211, the hot press blade 211 can be electrified and heated, and the heated hot press blade 211 acts between the battery pieces (the soldering flux is coated in advance) so that the battery pieces are heated and welded; the connection portion 212 is connected to the hot press blade 211 for connecting the hot press blade 211 and the driving member 220.

The driving member 220, as shown in fig. 1 and 2, is used for driving the hot press assembly 200 to displace, so as to be capable of acting on the battery plate or resetting. The driving member 220 is located on top of the heat pressing member 210, and is used to drive the heat pressing member 210 to move along a first direction, that is, the heat pressing member 210 can be lifted, reset or lowered for heat pressing, wherein the first direction refers to a vertical direction, and the first direction is perpendicular to a plane where the battery pieces are located, and it can be understood that the battery pieces are horizontally arranged; in one embodiment, the actuator 220 is fixedly coupled to the base 100, and in another embodiment, the actuator 220 is fixedly coupled to the mounting block 410 of the release assembly 400; the driving member 220 is arranged along the first direction, and the driving member 220 can adopt a driving structure such as an air cylinder, an electric cylinder, a screw rod sliding block and the like, so that the hot pressing assembly 200 moves downwards to act on the battery piece and rises and resets after hot pressing welding.

Further, as shown in fig. 1 and 2, a welding space 300 is formed below the thermo-compression member 210, the thermo-compression member 210 is driven by the driving member 220 to descend into the welding space 300, and the battery piece is positioned in the welding space 300 to contact with the thermo-compression member 210 to finish welding; it will be appreciated that the battery cells pass through the welding space 300 one by one along a predetermined route, so that adjacent battery cells are thermally compression-welded by the thermal compression member 210.

The release assembly 400, the release assembly 400 serves to isolate the hot press assembly 200 and the battery cell, so as to prevent the hot press assembly 200 and the battery cell from being in direct contact. The anti-sticking assembly 400 includes a mounting base 410, an insulating member 420, and a driving member 430, wherein the mounting base 410 is used for mounting and supporting the insulating member 420, and is used as a connection base of the insulating member 420; the insulating member 420 serves to insulate the heat insulating member 210 from the battery cell; the driving member 430 is used to control the driving of the insulating member 420.

Mount 410, as shown in fig. 1 and 2, mount 410 is used to mount and support insulation 420 as a connection foundation for insulation 420. The mounting seat 410 includes two mounting portions 411, and in one embodiment, the two mounting portions 411 are respectively located at two sides of the welding space 300, that is, on two sides of a preset path for transporting the battery, and the two mounting portions 411 are fixedly connected to the base 100.

The insulating member 420, as shown in fig. 1 and 2, the insulating member 420 serves to insulate the heat insulating member 210 from the battery cell. The insulating member 420 is connected to the mounting seat 410, and the insulating member 420 at least partially passes through between the pressing member 210 and the battery piece, so that the pressing member 210 moves downwards to indirectly press against the battery piece through the insulating member 420, and direct contact between the pressing member 210 and the battery piece is prevented, wherein the insulating member 420 can conduct heat, and the pressing member 210 can conduct heat to the battery piece through the insulating member 420; further, in order to better adhere the insulating member 420, the heat pressing member 210 and the battery plate, the insulating member 420 is made of a deformable material; in one embodiment, the insulating member 420 is a silicone tape; in another embodiment, the insulating member 420 may also be attached to the battery plate such that the insulating member 420 is in a horizontal position, i.e., the insulating member 420 is parallel to the active surface of the battery plate and/or the hot press 210.

The driving member 430, as shown in fig. 2 and 3, the driving member 430 is used to control the driving of the insulating member 420. The transmission member 430 includes a roller 431 and a rotating portion 432, the roller 431 is rotatably connected to the connecting portions 212 at both sides of the welding space 300, and the insulating member 420 is in transmission connection with the roller 431, such that the insulating member 420 passes through the welding space 300, i.e. between the hot pressing member 210 and the battery plate; the transmission part is connected to the roller 431, and is used for driving the roller 431 to rotate, so that the roller 431 can drive the isolation member 420 to drive, and in one embodiment, the rotation part 432 is a motor; further, the roller 431 includes a first wheel 4311, a second wheel 4312 and a third wheel 4313, the first wheel 4311 and the second wheel 4312 are disposed on opposite mounting portions 411, the first wheel 4311 and the second wheel 4312 are used for winding the isolation member 420, and a rotating portion 432 is disposed on the first wheel 4311 and/or the second wheel 4312, so that the first wheel 4311 and the second wheel 4312 are used as driving wheels, i.e. the isolation member 420 is longer, and winding and unwinding transmission can be realized under the rotation of the first wheel 4311 and the second wheel 4312; third wheel 4313 is rotatably connected to mounting part 411, third wheel 4313 is used as a guiding driven wheel of isolation member 420, in one embodiment, third wheel 4313 can be provided with a plurality of guiding driven wheels, and the transmission position, inclination or height of isolation member 420 can be adjusted by adjusting the position of third wheel 4313; in other embodiments, the rotating portion 432 may be connected to the third wheel 4313, such that the third wheel 4313 is used as a driving wheel and the first wheel 4311 or the second wheel 4312 is used as a driven wheel. So set up, under the transmission effect of first wheel 4311, second wheel 4312 to insulating piece 420, accessible gyro wheel 431's transmission is reeled insulating piece 420 to change the contact position with hot pressing piece 210, make hot pressing piece 210 push down to insulating piece 420 that all is unused on the insulating piece 420 at a time, further prevent that hot pressing piece 210 from polluting.

The application also provides a battery piece welding production line for producing battery strings, including battery piece welding mechanism, battery piece welding mechanism structure is the same with above-mentioned, and here no more tired.

Working principle/steps:

the battery pieces sequentially pass through the welding space 300 according to a preset path, when the battery pieces reach the welding space 300, the driving piece 220 drives the hot pressing piece 210 to press downwards, the hot pressing piece 210 is firstly contacted with the isolating piece 420 and continuously pressed onto the battery pieces, and the heated hot pressing piece 210 indirectly abuts against the battery pieces through the isolating piece 420 to finish hot pressing welding of the battery pieces;

the driving member 220 drives the hot pressing member 210 to ascend and reset after welding, the rotating part 432 drives the idler wheel 431 to rotate to drive the isolation member 420 to rotate, and the isolation member 420 is wound through the transmission of the idler wheel 431, namely, the contact position of the isolation member 420 and the hot pressing member 210 is changed to change the contact position with the hot pressing member 210, so that the hot pressing member 210 is pressed down to the isolation member 420 each time to be an unused isolation member 420; waiting for the next descending hot press welding.

The technical effects are as follows:

1. the hot pressing piece 210 acts on the battery piece and realizes the hot pressing welding to the battery piece, through set up one deck insulating member 420 between hot pressing piece 210 and battery piece for hot pressing piece 210 is through insulating member 420 indirect effect on the battery piece, prevents hot pressing piece 210 and battery piece direct contact, has avoided scaling powder on the battery piece, solder tin etc. on the welding strip to adhere to on hot pressing piece 210 and lead to the battery piece to be heated unevenly, thereby improves battery piece welding quality.

2. The insulating member 420 can deform, and is suitable for the shape of the hot pressing member 210 to deform, and the hot pressing member 210 is pressed downwards to deform the insulating member 420, so that the attaching effect of the hot pressing member 210 on the battery piece is improved, and the battery piece is heated uniformly; meanwhile, the deformable isolation member 420 is only penetrated through the welding space 300 technology, and the position of the isolation member 420 in the welding space 300 is not required to be controlled, so that the installation and the debugging are facilitated.

3. The insulating member 420 is wound on the roller 431, and the insulating member 420 can be wound by the transmission of the roller 431 to change the contact position with the hot pressing member 210, so that the hot pressing member 210 is pressed down to the insulating member 420 each time to form an unused insulating member 420, thereby further preventing the hot pressing member 210 from being polluted and improving the welding quality.

While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A battery piece welding mechanism, comprising:

a base (100);

a thermo-compression assembly (200), wherein the thermo-compression assembly (200) comprises a thermo-compression piece (210), the thermo-compression piece (210) has a degree of freedom of downward movement, and the thermo-compression piece (210) acts downwards on the battery piece to perform thermo-compression welding; and

a release assembly (400), the release assembly (400) comprising:

the mounting seat (410), the mounting seat (410) is fixedly connected to the base (100);

the insulating piece (420), but insulating piece (420) heat conduction, insulating piece (420) connect in on mount pad (410), insulating piece (420) are passed at least partially between hot pressing piece (210) and the battery piece, make hot pressing piece (210) are passed through downwards insulating piece (420) indirect butt is acted on the battery piece.

2. The battery piece welding mechanism according to claim 1, wherein a welding space (300) is formed below the hot pressing member (210), the battery piece is located in the welding space (300) for hot pressing welding, the mounting seat (410) is provided with two mounting portions (411), the mounting portions (411) are located at two sides of the welding space (300), the insulating member (420) is connected to the two mounting portions (411), and the insulating member (420) penetrates through the welding space (300).

3. The battery tab welding mechanism of claim 2 wherein the insulator (420) is deformable.

4. A battery tab welding mechanism according to claim 3, wherein the release assembly (400) further comprises a transmission member (430), the transmission member (430) comprising:

a roller (431), the roller (431) being provided on each mounting portion (411), the rollers (431) being wound around the insulating member (420) therebetween;

and the rotating part (432) is connected with the mounting part (411) and acts on the roller (431) so that the roller (431) drives the isolation member (420) to drive.

5. The battery tab welding mechanism of claim 4, wherein the roller (431) comprises:

-a first wheel (4311), said first wheel (4311) being adapted to wind an insulation (420);

-a second wheel (4312), said second wheel (4312) being adapted to wind an insulation (420), and said second wheel (4312) being arranged on opposite mounting portions (411);

-a third wheel (4313), said third wheel (4313) having at least two, said third wheel (4313) being adapted to guide said insulation (420).

6. A battery plate welding mechanism according to claim 5, characterized in that the insulating member (420) is parallel to the plane of the battery plate and/or the active surface of the hot press member (210).

7. The battery cell welding mechanism of claim 1, wherein the hot press assembly (200) further comprises:

the driving piece (220), the driving piece (220) is arranged in a first direction, the first direction is perpendicular to the plane where the battery piece is located, and the driving piece (220) is connected with the hot pressing piece (210).

8. The battery tab welding mechanism of claim 7, wherein the driver (220) is fixedly coupled to the mount (410).

9. The battery cell welding mechanism of claim 7, wherein the hot press (210) comprises;

a connection portion (212), the connection portion (212) being connected to the driving element (220);

the hot pressing cutter (211), hot pressing cutter (211) fixed connection is in on connecting portion (212), hot pressing cutter (211) circular telegram is heated.

10. A battery cell welding line comprising the battery cell welding mechanism of any one of claims 1-9.