CN220388378U - Dust removal mechanism for cell welding and cell welding equipment - Google Patents

Abstract

The utility model provides a dust removing mechanism for cell welding and cell welding equipment. According to the dust removing mechanism for the battery cell welding, the dust removing unit consisting of the clamping part and the dust removing part is arranged on the rotary platform, and the dust collecting opening is close to the welding part of the battery cell, so that the dust removing effect is improved, the dust removing part synchronously rotates along with the rotary platform in the welding process, and the dust removing part does not need to act due to avoiding the rotation of the battery cell, so that the welding dust removing efficiency is improved.

Description

Dust removal mechanism for cell welding and cell welding equipment

Technical Field

The utility model relates to the technical field of lithium ion battery production, in particular to a dust removing mechanism for welding an electric core. The utility model also relates to a battery cell welding device provided with the dust removing mechanism for battery cell welding.

Background

In the production and assembly process of the lithium battery, the wrapped bare cell is required to be installed into the battery shell, and then the top cover of the cell is pressed into the shell, so that the top of the top cover is flush with the top of the shell, and welding is completed. But the in-process of welding can produce metal powder granule, and near metal powder granule can not only fall on the tool, causes the tool to be difficult to clear up to the adhesion is on the utmost point ear or on the electric core easily, causes harmful effect to the performance of electric core, and can cause electric core short circuit to catch fire after metal granule falls into the electric core, and then causes very big potential safety hazard.

Although the dust removing mechanism in the existing lithium battery anode top cover pre-spot welding equipment can achieve a certain dust removing effect, the dust removing mechanism is limited by the structure and the installation position of the dust removing mechanism, and the dust collecting opening is far away from the welding part, so that the dust removing effect is poor. Or the dust collection opening is driven to move through the movement mechanism, so that the dust collection opening is close to a welding part, and the welding dust collection efficiency is affected.

Disclosure of Invention

In view of the foregoing, the present utility model aims to provide a dust removing mechanism for welding a battery cell, so as to improve the dust removing effect and the welding dust removing efficiency.

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

the dust removing mechanism for the battery cell welding comprises a rotary platform and a dust removing unit arranged on the rotary platform;

the dust removing unit comprises a clamping part and a dust removing part;

the clamping part is used for clamping the battery cell to be welded, and the dust removing part is used for sucking welding dust on the clamped battery cell.

Further, the clamping part comprises a pressing component and a limiting component which are arranged oppositely, the pressing component and the limiting component can clamp the battery cell when being close to each other, and the pressing component and the limiting component can release the clamped battery cell when being far away from each other.

Further, the compressing assembly comprises a compressing bracket arranged on the rotating platform, a compressing block arranged on the compressing bracket in a sliding manner, and a compressing driving part for driving the compressing block to slide;

the compressing block is driven by the compressing driving part to approach or depart from the limiting component.

Further, the limiting assembly comprises a limiting support arranged on the rotating platform, the compressing block is close to the limiting support and clamps the battery cell, and the compressing block is far away from the limiting support and releases the battery cell.

Further, the compressing assembly and the limiting assembly are provided with the dust removing part, and the dust removing part on the compressing assembly can move synchronously along with the compressing assembly.

Further, the dust removing part comprises a dust removing head provided with a dust collecting opening, and an air pipe connector connected with an external negative pressure device is arranged on the dust removing head.

Further, a heat radiation port communicated with the air pipe joint is arranged on the dust removal head, and a flow guide structure is arranged in the heat radiation port.

Further, two dust removing units are arranged on the rotary platform, and the two dust removing units are vertically arranged.

Further, a through hole is formed in the rotary platform, and a part of the clamped battery cell can enter the through hole.

Compared with the prior art, the utility model has the following advantages:

according to the dust removing mechanism for the battery cell welding, the dust removing unit consisting of the clamping part and the dust removing part is arranged on the rotary platform, and the dust removing part can absorb welding dust in a short distance, so that the dust removing effect is improved, the dust removing part synchronously rotates along with the rotary platform in the welding process, the dust removing part does not need to act due to avoiding the rotation of the battery cell, and the welding dust removing efficiency is improved.

In addition, through the mutual approaching of the compression component and the spacing component of relative arrangement, the centre gripping waits to weld the electric core, is favorable to the promotion of welding precision. The clamping mode that the pressing driving part drives the pressing block to be close to the limiting assembly is adopted, so that the structure is simple, and the maintenance is convenient.

In addition, through setting up spacing support and fixing a position the electric core, be favorable to improving electric core centre gripping positioning accuracy. The integrated design that locates the dust removal portion and compress tightly on subassembly and the spacing subassembly can make compress tightly the synchronous drive dust removal portion of drive portion and slide, is favorable to reducing the setting of power supply, simplifies dust collector structure, improves dust collector maintenance's convenience.

Secondly, through setting up dust absorption mouth and air pipe connection to be convenient for remove dust the head and be connected with outside negative pressure dust collecting equipment, and shorten the dust absorption mouth and from the distance of welding position, in order to improve the dust removal effect. Through setting up the thermovent with the air pipe joint intercommunication, be favorable to increasing the air current of flowing through electric core surface to reduce the temperature when electric core welds, reduce welding deformation volume, improve welding quality.

Furthermore, through two dust removal units of perpendicular arrangement, can make the dust removal portion be close to the welding position setting on each welding face of electric core to improve dust removal effect. Through set up the through-hole on rotary platform to dodge longer electric core, make the part of electric core can get into in the through-hole, be favorable to reducing dust removal mechanism's volume, reduce equipment cost.

Another object of the present utility model is to provide a battery cell welding apparatus, which includes a loading and unloading mechanism, a welding mechanism, and the dust removing mechanism for battery cell welding as described above;

the welding mechanism is used for welding the battery cells, and the feeding and discharging mechanism is used for feeding the battery cells to be welded and discharging the welded battery cells.

According to the battery cell welding equipment, the dust removing mechanism for battery cell welding can be used for sucking and removing dust generated by welding in a short distance, so that the dust removing effect is improved, the dust removing part synchronously rotates along with the rotating platform in the welding process, the dust removing part does not need to act due to avoiding the rotation of the battery cell, and the welding dust removing efficiency is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a dust removing mechanism according to a first view angle of an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a dust removing mechanism according to a second view angle of the embodiment of the present utility model;

fig. 3 is a schematic structural view of a dust removing part according to an embodiment of the present utility model.

Reference numerals illustrate:

1. rotating the platform; 11. a through hole; 2. a dust removal unit;

21. a clamping part; 211. a compression assembly; 2111. compressing the bracket; 2112. a compaction block; 2113. a pressing driving part; 212. a limit component; 2121. a limit bracket; 2122. adjusting a bolt;

22. a dust removing part; 221. a dust removal head; 2211. a dust collection port; 2212. an air pipe joint; 2213. a heat radiation port; 2214. a deflector;

3. and a battery cell.

Detailed Description

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

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present utility model, the terms "mounted," "connected," and "connected" are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a dust removing mechanism for electric core welding (hereinafter referred to as dust removing mechanism), which is shown in fig. 1 to 3 in combination with the whole structure, and includes a rotary platform 1 and a dust removing unit 2 provided on the rotary platform 1.

The dust removing unit 2 includes a clamping portion 21 and a dust removing portion 22. The clamping part 21 is used for clamping the battery cell 3 to be welded, and the dust removing part 22 is used for sucking welding dust on the clamped battery cell 3.

As described above, the dust removing mechanism of the present embodiment locates the dust removing unit 2 composed of the clamping part 21 and the dust removing part 22 on the rotary platform 1, and makes the dust removing part 22 absorb the dust generated by welding in a short distance, so as to improve the dust removing effect, and the dust removing part 22 follows the rotary platform 1 to rotate synchronously in the welding process, so that the dust removing part 22 does not need to act due to the rotation of the avoidance battery cell 3, thereby being beneficial to improving the efficiency of welding dust removal.

Based on the above general description, specifically, as a preferred embodiment, as shown in fig. 1 to 2, the clamping portion 21 includes a pressing assembly 211 and a limiting assembly 212 that are disposed opposite to each other, and can clamp the battery cell 3 when the pressing assembly 211 and the limiting assembly 212 are close to each other, and can release the clamped battery cell 3 when the pressing assembly 211 and the limiting assembly 212 are far away from each other. At this time, the pressing component 211 and the limiting component 212 which are oppositely arranged are close to each other, so that the battery cell 3 to be welded is clamped, and the improvement of welding precision is facilitated.

In specific implementation, the limiting component 212 is fixedly connected with the rotary platform 1, and the pressing component 211 is slidably arranged on the rotary platform 1, so that the pressing component 211 can slide towards the direction of the limiting component 212, thereby realizing clamping of the battery cell 3. It is understood that the clamping portion 21 of the present embodiment may employ products or structures well known to those skilled in the art, in addition to the oppositely disposed hold down assembly 211 and stop assembly 212.

As a preferred embodiment, as shown in fig. 1 to 2, the compression assembly 211 includes a compression bracket 2111 provided on the rotary platform 1, a compression block 2112 slidably provided on the compression bracket 2111, and a compression driving part 2113 for driving the compression block 2112 to slide. The compression block 2112 is urged toward or away from the stop assembly 212 by a compression drive 2113. So set up, through adopting the clamping form that compresses tightly drive portion 2113 to drive compact heap 2112 to be close to spacing subassembly 212, simple structure is convenient for maintain.

In a specific implementation, the compaction driving unit 2113 may be, for example, an air cylinder, and a power output end of the air cylinder is fixedly connected to the compaction block 2112. At this time, the pressing block 2112 can be linearly moved toward the limit unit 212 by the driving of the air cylinder. Of course, the pressing driving portion 2113 may employ a related structure or product known to those skilled in the art, such as an electric cylinder, a linear motor, etc., instead of the air cylinder, and so on.

As a preferred embodiment, as shown in fig. 1-2, the limiting assembly 212 includes a limiting bracket 2121 provided on the rotating platform 1, and the pressing block 2112 clamps the battery cell 3 when approaching the limiting bracket 2121, and releases the battery cell 3 when the pressing block 2112 is away from the limiting bracket 2121. At this time, through setting up spacing support 2121 and carrying out the location to electric core 3, be favorable to improving electric core 3 centre gripping positioning accuracy.

Specifically, in order to facilitate the adjustment of the position of the clamped cell 3 on the rotary platform 1, the limiting bracket 2121 is further provided with an adjusting device for adjusting the clamping position of the cell 3. Specifically, the adjusting device may employ an adjusting bolt 2122, and the adjusting bolt 2122 is screwed to the limiting bracket 2121. It can be appreciated that, in implementation, a limiting block is usually further provided on the output end of the adjusting bolt 2122, and the limiting block is used to cooperate with the pressing block 2112 to clamp the battery cell 3.

In this way, the limiting block can approach or separate from the compressing block 2112 through the rotation of the adjusting bolt 2122, so as to realize the adjustment of the clamping position of the battery cell 3. Of course, instead of the adjusting bolt 2122, other related structures or products known to those skilled in the art may be used for the adjusting device.

As a preferred embodiment, as shown in fig. 1 to 3, the compressing assembly 211 and the limiting assembly 212 are provided with dust removing parts 22, and the dust removing parts 22 on the compressing assembly 211 can move synchronously with the compressing assembly 211. By the arrangement, the dust removing part 22 is arranged on the pressing assembly 211 and the limiting assembly 212 in an integrated mode, the pressing driving part 2113 can synchronously drive the dust removing part 22 to slide, the arrangement of a power source is reduced, the structure of the dust removing device is simplified, and the maintenance convenience of the dust removing device is improved.

In particular, as an exemplary structure, the dust removing portions 22 of the present embodiment are respectively disposed on the compression block 2112 and the stopper, and when the compression driving portion 2113 drives the compression block 2112 to move toward the stopper, the dust removing portions 22 on the stopper are synchronously moved toward the dust removing portions 22 on the stopper, and the two dust removing portions 22 that are moved toward each other are moved toward or abutted against the clamped battery cell 3.

Of course, it is understood that, instead of providing the dust removing portion 22 on the compression block 2112 and the stopper, the dust removing portion 22 may be integrally formed on the compression block 2112, that is, the dust removing portion 22 is used to replace the compression block 2112, so that the compression driving portion 2113 directly drives the dust removing portion 22 to move. Similarly, the dust removing part 22 may be integrally formed with the stopper. With this arrangement, the battery cell 3 can be directly held by the dust removing part 22, so that the dust removing device structure can be simplified.

In this embodiment, as a preferred embodiment, as shown in fig. 3, the dust removing part 22 includes a dust removing head 221 with a dust collecting port 2211, and an air pipe joint 2212 connected to an external negative pressure device is further provided on the dust removing head 221. At this time, the dust collection port 2211 and the air pipe joint 2212 are arranged, so that the dust collection head 221 is connected with external negative pressure dust collection equipment, the distance between the dust collection port 2211 and a welding part is shortened, and the dust collection effect is improved.

In particular, as an exemplary structure, the dust removing head 221 of the present embodiment has an "L" structure, where the dust collecting port 2211 is close to the welding portion of the battery cell 3, that is, the long side or the short side where the battery cell 3 contacts with the end cover, so that the dust removing head 221 can suck the welding dust in a short distance.

Meanwhile, two ends of the dust removing head 221 are respectively provided with an air pipe joint 2212, and the air pipe joint 2212 is used for communicating an external negative pressure device with the dust collecting opening 2211. Through setting up a plurality of air pipe joints 2212 in dust removal head 221 both sides, be favorable to improving the reliability that dust absorption mouth 2211 is connected with outside negative pressure dust collecting equipment to be favorable to reducing resistance loss, improve the dust removal effect.

It should be noted that the external negative pressure device may be a product capable of generating negative pressure air flow, for example, a negative pressure fan. When the negative pressure fan is started, negative pressure is formed at the dust collection port 2211 communicated with the negative pressure fan through the air pipe structure, and welding dust close to the dust collection port 2211 can be sucked by the negative pressure at the dust collection port 2211.

In detail, the external negative pressure device is respectively communicated with the air pipe joints 2212 on each dust removing head 221 through air pipes. Of course, it can be appreciated that, in implementation, a corresponding valve is also typically provided between the external negative pressure device and the air connection 2212 to control the start and stop of the dedusting operation of the dedusting head 221.

As a preferred embodiment, the dust removing head 221 of the present embodiment is provided with a heat dissipation port 2213 communicating with the air pipe joint 2212, and the heat dissipation port 2213 is provided with a flow guiding structure. So set up, through setting up the thermovent 2213 with the air pipe joint 2212 intercommunication, be favorable to increasing the air current of flowing through electric core 3 surface to reduce the temperature when electric core 3 welds, reduce welding deformation volume, improve welding quality.

In particular, a heat dissipation port 2213 is disposed on the side of the dust removal head 221, which is close to the battery cell 3 to be welded, and the heat dissipation port 2213 is connected with external negative pressure equipment through an air pipe joint 2212. When the battery cell 3 is welded, the dust removing head 221 starts to remove dust, and at the same time, negative pressure is formed at the heat dissipation port 2213 to suck the air around the heat dissipation port 2213 into the heat dissipation port 2213, and the air is discharged out of the dust removing device through the air pipe joint 2212, so that the air around the heat dissipation port 2213 can dissipate heat of the battery cell 3 when flowing through the surface of the battery cell 3.

Meanwhile, as an exemplary structure, still referring to fig. 3, two flow guide plates 2214 are further provided in the heat dissipation port 2213 of the present embodiment, and the two flow guide plates 2214 are disposed in the heat dissipation port 2213 at intervals to form a flow guide structure. At this time, the deflector 2214 can guide the air flowing through the heat dissipation port 2213 to be uniformly distributed, so as to facilitate improving the uniformity of heat dissipation on the surface of the battery cell 3 during the welding of the battery cell 3.

It should be noted that, besides two flow guide plates 2214 are disposed at intervals, the arrangement form and number of the flow guide structures can be adjusted according to the length of the heat dissipation port 2213 or the air flow distribution condition. Also, in addition to the deflector 2214, other related structures known to those skilled in the art may be used in the present embodiment.

In this embodiment, as a preferred embodiment, as shown in fig. 1 to 2, two dust removing units 2 are provided on the rotary platform 1, and the two dust removing units 2 are vertically arranged therebetween. At this time, by the two dust removing units 2 being vertically arranged, the dust removing portion 22 can be provided close to the welded portions on the respective welding surfaces of the battery cell 3, so that the dust removing effect can be improved.

In specific implementation, the two dust removing units 2 are vertically arranged, that is, the four sides of the electric core 3 corresponding to the long side and the short side which are in contact with the electric core 3 and the end cover are respectively provided with a dust removing part 22 for sucking and removing welding dust of the electric core 3 and a clamping part 21 for clamping the electric core 3. So set up, can open the dust removal portion 22 that corresponds respectively according to the welding position and carry out the dust absorption, be favorable to improving the dust removal effect, reduce outside negative pressure device energy consumption.

As a preferred embodiment, as shown in fig. 1 to 2, the rotary platform 1 of the present embodiment is provided with a through hole 11, and a portion of the held battery cell 3 can enter the through hole 11. So set up, through set up through-hole 11 on rotary platform 1 to dodge longer electric core 3, make electric core 3's part can get into in the through-hole 11, be favorable to reducing dust removal mechanism's volume, reduce equipment cost.

In particular, as an exemplary structure, the rotary platform 1 is provided with a through hole 11 at a position between the clamping portion 21 and the dust removing portion 22. When the battery cell 3 is longer, the welding part of the battery cell 3 can be close to the dust collection port 2211 on the dust collection head 221 by penetrating a part of the battery cell 3 through the rotary platform 1, so that the sizes of the clamping part 21 and the dust collection part 22 are prevented from being increased to adapt to the length of the battery cell 3, and the equipment cost is reduced.

When the dust removing mechanism of the embodiment is used, the battery cell 3 to be welded is placed between the dust removing head 221 on the compressing block 2112 and the dust removing head 221 on the limiting block, and the compressing block 2112 moves towards the limiting block under the driving of the compressing driving part 2113. At the same time, the dust removing head 221 moves towards the limiting block along with the compaction block 2112 synchronously, the dust removing heads 221 arranged on the compaction block 2112 and the limiting block are close to each other and clamp the battery cell 3, and the dust collecting opening 2211 on the dust removing head 221 is close to the welding part.

At this time, one side of the battery cell 3 contacting with the end cover is welded, and the dust suction port 2211 on the dust removal head 221 corresponding to the side starts dust suction, and at the same time, the heat dissipation port 2213 on the dust removal head 221 dissipates heat to the battery cell 3. The rotary platform 1 continuously drives the dust removing device and the battery cell 3 to rotate, and then welds, removes dust and dissipates heat on other sides, so that the welding of the four sides of the battery cell 3, which are in contact with the end cover, is completed. After the battery cell 3 is welded, the compaction driving part 2113 drives the dust removing heads 221 away from each other, and the clamped battery cell 3 is released.

The dust removing mechanism of the embodiment locates the dust removing unit 2 composed of the clamping part 21 and the dust removing part 22 on the rotary platform 1, and enables the dust collecting port 2211 to be close to the welding part of the battery cell 3, so as to improve the dust removing effect, and facilitate the realization that the dust removing part 22 follows the rotary platform 1 to rotate synchronously in the welding process, the dust removing part 22 does not need to act due to the avoidance of the rotation of the battery cell 3, and the dust removing mechanism is favorable for improving the welding dust removing efficiency.

Example two

The embodiment relates to a battery cell welding device, which comprises a loading and unloading mechanism, a welding mechanism and a dust removing mechanism in embodiment one. The welding mechanism is used for welding the battery cells 3, and the feeding and discharging mechanism is used for feeding the battery cells 3 to be welded and discharging the welded battery cells 3.

According to the battery cell welding equipment, the dust generated by welding can be sucked and removed in a short distance by adopting the dust removing mechanism, so that the dust removing effect is improved, the dust removing part 22 synchronously rotates along with the rotary platform 1 in the welding process, the dust removing part 22 does not need to act due to the rotation of the avoidance battery cell 3, and the welding dust removing efficiency is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The utility model provides a dust removal mechanism for electric core welding which characterized in that:

the dust removing device comprises a rotary platform and a dust removing unit arranged on the rotary platform;

the dust removing unit comprises a clamping part and a dust removing part;

the clamping part is used for clamping the battery cell to be welded, and the dust removing part is used for sucking welding dust on the clamped battery cell.

2. The dust removing mechanism for cell welding according to claim 1, wherein:

the clamping part comprises a pressing component and a limiting component which are oppositely arranged, the pressing component and the limiting component can clamp the battery cell when being close to each other, and the pressing component and the limiting component can release the clamped battery cell when being far away from each other.

3. The dust removing mechanism for cell welding according to claim 2, wherein:

the compressing assembly comprises a compressing bracket arranged on the rotating platform, a compressing block arranged on the compressing bracket in a sliding manner, and a compressing driving part for driving the compressing block to slide;

the compressing block is driven by the compressing driving part to approach or depart from the limiting component.

4. A dust removing mechanism for cell welding according to claim 3, wherein:

the limiting assembly comprises a limiting support arranged on the rotary platform, the compressing block clamps the battery cell when approaching to the limiting support, and the compressing block releases the battery cell when being far away from the limiting support.

5. The dust removing mechanism for cell welding according to claim 2, wherein:

the compressing assembly and the limiting assembly are respectively provided with a dust removing part, and the dust removing parts on the compressing assembly can move synchronously along with the compressing assembly.

6. The dust removing mechanism for cell soldering according to claim 5, wherein:

the dust removing part comprises a dust removing head with a dust collecting opening, and an air pipe joint connected with an external negative pressure device is arranged on the dust removing head.

7. The dust removing mechanism for cell soldering as set forth in claim 6, wherein:

the dust removing head is provided with a heat radiation opening communicated with the air pipe joint, and a flow guide structure is arranged in the heat radiation opening.

8. The dust removing mechanism for die-bonding according to any one of claims 1 to 7, wherein:

the rotary platform is provided with two dust removing units, and the two dust removing units are vertically arranged.

9. The dust removing mechanism for cell welding according to claim 8, wherein:

the rotary platform is provided with a through hole, and a part of the clamped battery core can enter the through hole.

10. The utility model provides a electricity core welding equipment which characterized in that:

the battery cell welding equipment comprises a loading and unloading mechanism, a welding mechanism and a dust removing mechanism for battery cell welding, wherein the dust removing mechanism is used for battery cell welding and comprises a dust removing mechanism and a dust removing mechanism, wherein the dust removing mechanism is used for battery cell welding;

the welding mechanism is used for welding the battery cells, and the feeding and discharging mechanism is used for feeding the battery cells to be welded and discharging the welded battery cells.