CN215451444U

CN215451444U - Bearing device and battery string production equipment

Info

Publication number: CN215451444U
Application number: CN202120679263.5U
Authority: CN
Inventors: 李文; 季斌斌; 蒋小龙
Original assignee: Wuxi Autowell Technology Co Ltd
Current assignee: Wuxi Autowell Technology Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-01-07
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses a bearing device and battery string production equipment, wherein the bearing device comprises a bearing main body, the bearing main body comprises a battery piece bearing part and a welding strip bearing part, the battery piece bearing part comprises at least two first supporting parts, the welding strip bearing part comprises at least one second supporting part, a strip-shaped groove is arranged on the second supporting part, the first supporting part and the second supporting part are arranged, and the two bearing devices can be inserted together by mutually staggering the first supporting part of the next bearing device and the second supporting part of the previous bearing device; the second supporting part is provided with a pressing pin hole, the bearing device further comprises a pressing pin, the pressing pin can move upwards to the bottom surface of the protruding strip-shaped groove so as to upwards press the welding strip on the battery piece above, and the pressing pin can be retracted downwards into the pressing pin hole. According to the technical scheme provided by the utility model, the battery piece and the welding strip are stacked by utilizing the bearing device, so that the welding strip can be effectively contacted with the battery piece, and the welding effect of the welding strip and the battery piece is favorably improved.

Description

Bearing device and battery string production equipment

Technical Field

The utility model relates to the technical field of battery pack production, in particular to a bearing device and battery string production equipment.

Background

In the production process of the photovoltaic cell, a cell string is formed by welding a cell and a welding strip by using cell string welding equipment.

Before welding to form a battery string, firstly, stacking a battery piece and a welding strip, wherein the traditional stacking mode of the battery piece and the welding strip is to sequentially place the battery piece and the welding strip on a welding and conveying device, so that the welding strip and the battery piece welding and conveying device are stacked to form the battery string.

However, in the existing stacking mode of the welding strips and the battery plates, the position accuracy of the welding strips relative to the battery plates is not enough, and the production quality of the battery string is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bearing device and battery string production equipment, and aims to solve the problem that in the prior art, the stacking precision of a welding strip and a battery piece is poor.

In order to achieve the above object, the present invention provides a carrying device, which includes a carrying main body, wherein the carrying main body includes a cell carrying portion and a solder strip carrying portion, the cell carrying portion includes at least two first supporting portions for carrying a cell, the solder strip carrying portion includes at least one second supporting portion for carrying a solder strip, the second supporting portion is provided with a strip-shaped groove for accommodating a solder strip, and when a rear half section of the solder strip is located in the strip-shaped groove of the second supporting portion, a front half section of the solder strip is stacked on the cell of the first supporting portion; the first supporting part and the second supporting part are arranged, the two bearing devices can be spliced together by the first supporting part of the next bearing device and the second supporting part of the previous bearing device in a mutually staggered manner, so that the welding strip on the second supporting part of the previous bearing device is superposed below the battery piece on the next bearing device;

the second supporting part is provided with a pressing pin hole which is located on the strip-shaped groove and is through up and down, the bearing device further comprises a pressing pin which is movably arranged in the pressing pin hole, the pressing pin is arranged to be capable of moving upwards to protrude out of the bottom surface of the strip-shaped groove so as to enable a welding strip located in the strip-shaped groove to be upwards pressed on the battery pieces stacked above, and the pressing pin can retract downwards into the pressing pin hole.

Preferably, the bearing device further comprises a spring, the spring applies upward elastic force to the pressing pin so that the pressing pin can move upwards, and the pressing pin can be retracted downwards into the pressing pin hole when downward force is applied to the pressing pin to overcome the elastic force of the spring.

Preferably, the presser pin is arranged to be capable of moving downward to retract into the presser pin hole by magnetic attraction below.

Preferably, the needle pressing hole comprises a first opening and a second opening, the first opening is located above the needle pressing hole, and the second opening is located below the first opening and has a smaller diameter than the first opening;

the pressing needle is positioned in the first opening and the second opening, a first stopping part for preventing the pressing needle from penetrating out of the pressing needle hole downwards is arranged at the top end of the pressing needle, the lower end of the pressing needle extends out of the second opening, and a second stopping part for preventing the pressing needle from penetrating out of the pressing needle hole upwards is arranged at the lower end of the pressing needle;

the spring is sleeved on the pressing needle, one end of the spring is propped against the first stopping part, and the other end of the spring is propped against a step surface between the first opening and the second opening.

Preferably, at least two needle pressing holes are arranged on the second supporting part at intervals along the length direction of each strip-shaped groove;

or, every on the second supporting part be provided with one on the bar groove the tucking eye, tucking eye with be located downthehole the tucking needle is for following the rectangular shape that the length direction in bar groove extends.

Preferably, the upper surface of the second support part is provided with a boss for supporting the battery piece.

Preferably, the bearing main body is provided with a groove, the bearing device further comprises a cover plate covering the groove, the groove between the bearing main body and the cover plate forms a negative pressure cavity for forming negative pressure through suction gas, and the first supporting part is provided with a negative pressure adsorption hole communicated with the negative pressure cavity and used for adsorbing the battery piece.

Preferably, the two opposite ends of the bearing main body are respectively provided with a positioning hole or a positioning column.

According to another aspect of the utility model, a battery string production device is also provided, which comprises at least two bearing devices as described above, a battery piece feeding device, a solder strip feeding device and at least two moving devices;

each moving device is arranged to support one bearing device and move, when the moving device moves to a first station, the battery piece feeding device places a battery piece on the first supporting portion of the bearing device, when the moving device supports the bearing device to move to a second station, the solder strip feeding device places the rear half section of a solder strip in the strip-shaped groove of the second supporting portion, and the front half section of the solder strip is stacked on the battery piece of the first supporting portion;

the moving device is provided with an electromagnet corresponding to the position of the pressing pin, when a welding strip is placed on the bearing devices, the electromagnet is electrified to attract the pressing pin to retract downwards into the pressing pin hole through magnetic force, when the moving device moves to connect the at least two bearing devices together in an inserting mode, the electromagnet is powered off, the pressing pin moves upwards under the action of the spring, and the welding strip is pressed on the battery pieces stacked above.

According to the technical scheme provided by the utility model, the battery piece and the welding strip are stacked by utilizing the bearing device to bear the battery piece and the welding strip, and when the battery piece and the welding strip are stacked, the welding strip is pressed on the stacked battery piece through the pressing pin, so that the welding strip can be effectively contacted with the battery piece, the welding effect of the welding strip and the battery piece can be improved, and the production quality of the battery string is improved.

Drawings

FIG. 1 is a schematic structural diagram of a carrier according to an embodiment of the present invention;

FIG. 2 is a side view of the carrier shown in FIG. 1;

FIG. 3 is a cross-sectional view of the carrier shown in FIG. 1;

fig. 4 is another cross-sectional view of the carrier shown in fig. 1.

Description of reference numerals:

1-a load bearing body; 11-a first support; 111-negative pressure adsorption wells; 12-a second support; 121-a strip groove; 122-pressing pin holes; 1221-first opening; 1222-a second opening; 13-positioning holes; 14-a negative pressure cavity; 2-pressing the needle; 21-a first stop; 3-a spring; 4-a second stop; and 5, covering the plate.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may also be otherwise oriented, such as by rotation through 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

The utility model provides a bearing device, as shown in fig. 1-4, the bearing device comprises a bearing main body 1, the bearing main body 1 comprises a battery piece bearing part and a solder strip bearing part, the battery piece bearing part comprises at least two first supporting parts 11 for bearing battery pieces, the solder strip bearing part comprises at least one second supporting part 12 for bearing a solder strip, a strip-shaped groove 121 for accommodating the solder strip is arranged on the second supporting part 12, and when the rear half section of the solder strip is positioned in the strip-shaped groove 121 of the second supporting part 12, the front half section is overlapped on the battery piece of the first supporting part 11; the first supporting part 11 and the second supporting part 12 are arranged in such a way that the two bearing devices can be inserted together by the first supporting part 11 of the latter bearing device and the second supporting part 12 of the former bearing device being staggered with each other, so that the solder strip on the second supporting part 12 of the former bearing device is stacked below the battery plate on the latter bearing device;

the second support portion 12 is provided with a needle pressing hole 122 which is located on the bar-shaped groove 121 and penetrates up and down, the carrying device further includes a needle pressing 2 movably disposed in the needle pressing hole 122, the needle pressing 2 is configured to be capable of moving upwards to protrude out of the bottom surface of the bar-shaped groove 121 so as to press the welding strip located in the bar-shaped groove 121 upwards against the battery pieces stacked above, and the needle pressing 2 can retract downwards into the needle pressing hole 122.

That is to say, when the second supporting portion 12 of one carrying device is inserted into the first supporting portion 11 of the subsequent carrying device, the battery piece on the subsequent carrying device is stacked above the solder strip of the second supporting portion 12 of the carrying device, at this time, the press pin 2 can be moved upwards to press the solder strip in the strip groove 121 of the second supporting portion 12 against the battery piece above through the press pin 2, so that the solder strip can be in effective contact with the battery piece, the welding effect of the solder strip and the battery piece can be improved during welding, and thus, the production quality of the battery string can be improved.

In an embodiment of the present invention, as shown in fig. 1, at least two needle pressing holes 122 are arranged on the second support portion 12 at intervals along a length direction of each strip-shaped groove 121, so as to jack up a welding strip by a plurality of pressing needles. Of course, it can be understood that a needle pressing hole 122 may also be provided on each strip-shaped groove, and the needle pressing hole 122 and the needle pressing located in the needle pressing hole are long strips extending along the length direction of the strip-shaped groove 121.

Preferably, a boss (not shown) for supporting the battery cell is provided on the upper surface of the second support part 12. When two or more carriers are plugged together, the battery plate on the first support part 11 of the latter carrier is located on the second support part 12 of the former carrier, and the second support part 12 of the former carrier supports the battery plate through the boss arranged on the second support part. The battery plates stacked above are supported by the bosses, so that the contact area between the battery plates and the second supporting part 12 can be reduced, and the problem that the second supporting part 12 absorbs heat generated during welding of the battery plates to influence welding is avoided. Here, a plurality of bosses may be provided on each second support portion 12, and an elongated boss extending in a length direction of the bar groove 121 may be provided on each second support portion 12.

In this embodiment, as shown in fig. 2 and 3, the carrier device further includes a spring 3, and the spring 3 applies an upward elastic force to the pressing pin 2 so that the pressing pin 2 can move upward, and applies a downward force to the pressing pin 2 to overcome the elastic force of the spring 3 so that the pressing pin 2 can retract downward into the pressing pin hole 122.

Specifically, as shown in fig. 3, the pinhole 122 includes a first hole 1221 located above and a second hole 1222 located below the first hole 1221, and the diameter of the second hole 1222 is smaller than that of the first hole 1221;

the pressing needle 2 is located in the first hole 1221 and the second hole 1222, a first stopping portion 21 for preventing the pressing needle 2 from passing through the pressing needle hole downwards is arranged at the top end of the pressing needle 2, the lower end of the pressing needle 2 extends out of the second hole 1222, and a second stopping portion 4 for preventing the pressing needle 2 from passing through the pressing needle hole 122 upwards is arranged at the lower end; wherein the second stopping part 4 is an annular retainer ring arranged in an annular groove at the lower end of the pressing needle 2.

The spring 3 is sleeved on the pressing pin 2, and one end of the spring abuts against the first stopping portion 21, and the other end of the spring abuts against a step surface between the first opening 1221 and the second opening 1222, so as to apply an upward elastic force to the pressing pin 2.

In the present embodiment, the presser pin 2 is arranged to be movable downward into the presser pin hole 122 by magnetic attraction below. That is, when the magnet or the electromagnet is provided below the plunger hole 122, a downward magnetic attraction force is applied to the plunger 2, so that the plunger 2 moves downward, and when the magnet is removed or the electromagnet is powered off, the plunger 2 moves upward by the spring 3.

It will be understood by those skilled in the art that the manner of moving the pressing pin 2 upward and downward is not limited to the above-described manner, and for example, the pressing pin 123 may be set to have a downward tendency under the elastic force of a spring, and when the pressing pin 123 is pressed upward by the pressing mechanism, the pressing pin 123 may be moved upward against the solder ribbon.

In this embodiment, the first supporting portion 11 of the carrying device is provided with a negative pressure suction hole 111 for sucking the battery piece.

Specifically, as shown in fig. 4, a groove 14 is provided on the bearing main body 1, the groove 14 is provided at the bottom of the bearing main body 1, the bearing device further includes a cover plate 5 covering the groove 14, the groove 14 between the bearing main body 1 and the cover plate 5 forms a negative pressure cavity for forming a negative pressure through suction gas, and the negative pressure adsorption hole 111 provided on the first support 11 is communicated with the negative pressure cavity. Wherein, the cover plate 5 can be provided with an adsorption hole, and the suction pipeline sucks gas from the adsorption hole on the cover plate 5.

In addition, two opposite ends of the bearing main body 1 are respectively provided with a positioning hole 13 or a positioning column. When the bearing main body 1 is carried by a mobile device, the bearing main body 1 can be positioned on the mobile device by the positioning hole 13 on the bearing main body 1 matching with the positioning column on the mobile device (or by the positioning column on the bearing main body 1 matching with the positioning hole on the mobile device).

the moving device is provided with an electromagnet corresponding to the position of the pressing pin 2 of the bearing device, when a welding strip is placed on the bearing device, the electromagnet is electrified to attract the pressing pin 2 to retract downwards into the pressing pin hole through magnetic force, when the moving device moves to connect the at least two bearing devices together in an inserting mode, the electromagnet is powered off, the pressing pin moves upwards under the action of a spring, and the welding strip is pressed on the battery pieces stacked above.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the individual specific technical features in any suitable way. The utility model is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims

1. A bearing device is characterized by comprising a bearing main body, wherein the bearing main body comprises a battery piece bearing part and a welding strip bearing part, the battery piece bearing part comprises at least two first supporting parts used for bearing a battery piece, the welding strip bearing part comprises at least one second supporting part used for bearing a welding strip, a strip-shaped groove used for containing the welding strip is arranged on the second supporting part, and when the rear half section of the welding strip is positioned in the strip-shaped groove of the second supporting part, the front half section is stacked on the battery piece of the first supporting part; the first supporting part and the second supporting part are arranged, the two bearing devices can be spliced together by the first supporting part of the next bearing device and the second supporting part of the previous bearing device in a mutually staggered manner, so that the welding strip on the second supporting part of the previous bearing device is superposed below the battery piece on the next bearing device;

2. The carrier device of claim 1, further comprising a spring that applies an upward force to the presser pin to allow the presser pin to move upward and retracts the presser pin downward into the presser pin hole when a downward force is applied to the presser pin to overcome the spring force.

3. The carrier as claimed in claim 2 wherein the presser pins are arranged to be movable downwardly into retracted holes by magnetic attraction below.

4. The carrier as claimed in claim 2, wherein the pinhole press comprises a first hole above and a second hole below the first hole, the second hole having a smaller diameter than the first hole;

5. The carrying device according to claim 1, wherein at least two needle pressing holes are arranged on the second supporting part at intervals along the length direction of each strip-shaped groove;

or, every of second supporting part be provided with one on the bar groove the tucking eye, tucking eye with be located downthehole the tucking needle is for following the rectangular shape that the length direction in bar groove extends.

6. The carrying device as claimed in claim 1, wherein the upper surface of the second supporting part is provided with a boss for supporting a battery piece.

7. The carrying device according to claim 6, wherein the carrying body is provided with a groove, the carrying device further comprises a cover plate covering the groove, the groove between the carrying body and the cover plate forms a negative pressure cavity for forming negative pressure by sucking gas, and the first supporting part is provided with a negative pressure adsorption hole communicated with the negative pressure cavity for adsorbing the battery piece.

8. The carrying device as claimed in any one of claims 1 to 7, wherein the carrying body is provided with positioning holes or positioning posts at two opposite ends thereof.

9. A battery string production apparatus, characterized in that the battery string production apparatus comprises at least two carrying devices according to any one of claims 1 to 8, and further comprises a battery sheet feeding device, a solder ribbon feeding device and at least two moving devices;