CN219066897U

CN219066897U - Lug briquetting assembly

Info

Publication number: CN219066897U
Application number: CN202223451237.0U
Authority: CN
Inventors: 周良梁; 潘永超; 周晓毅; 侯建国
Original assignee: Dr Octopus Intelligent Technology Shanghai Co Ltd
Current assignee: Dr Octopus Intelligent Technology Shanghai Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-05-23
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a tab briquetting assembly, which comprises: the shell comprises a fixed shell and a movable shell, wherein the inner peripheral wall of the fixed shell and the inner peripheral wall of the movable shell jointly define a pressing block accommodating cavity, and the movable shell can selectively move towards or away from the lug; the pressing block is arranged in the pressing block accommodating cavity and connected with the fixed shell, the pressing block is arranged at intervals with the shell, and the pressing block can selectively move towards or away from the lug; the dust collection pipeline is connected with the fixed shell, a gas circulation cavity is formed in the dust collection pipeline, and the gas circulation cavity is communicated with the pressing block accommodating cavity. The lug pressing block assembly can simultaneously finish flattening and dust removal of the lugs, reduces the cost of additional hardware equipment and improves the space utilization efficiency of the equipment.

Description

Lug briquetting assembly

Technical Field

The utility model relates to the technical field of batteries, in particular to a lug pressing block assembly.

Background

The welding technology commonly used for the lithium battery electrode lugs is ultrasonic welding, and in order to ensure the flatness of welding points, the welding is accomplished by adopting a pressing block to carry out flattening treatment on the welding points. Meanwhile, dust can fall on the surface of the lug in the welding and transferring processes, and the surface needs to be dedusted. In the related art, two working procedures of flattening and dedusting are separately operated, and circulation equipment is required to be additionally used, so that the production cost can be improved to a certain extent. The application aims at providing a pole ear pressing block assembly so as to solve the problem.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a tab press block assembly. The lug pressing block assembly can simultaneously finish flattening and dust removal of the lugs, reduces the cost of additional hardware equipment and improves the space utilization efficiency of the equipment.

According to some embodiments of the utility model, the tab press block assembly comprises: the shell comprises a fixed shell and a movable shell, wherein the inner peripheral wall of the fixed shell and the inner peripheral wall of the movable shell jointly define a pressing block accommodating cavity, and the movable shell can selectively move towards or away from the lug; the pressing block is arranged in the pressing block accommodating cavity and connected with the fixed shell, the pressing block is arranged at intervals with the shell, and the pressing block can selectively move towards or away from the lug; the dust collection pipeline is connected with the fixed shell, a gas circulation cavity is formed in the dust collection pipeline, and the gas circulation cavity is communicated with the pressing block accommodating cavity.

The utility model relates to a pole ear pressing block assembly, which comprises a fixed shell and a movable shell, wherein in the operation process, the pressing block and the fixed shell stop after moving to a certain position towards the pole ear, the movable shell moves towards the pole ear due to the action of gravity until contacting with a pole piece, at the moment, a negative pressure air source is started, air is sucked from the side edge of the pole ear, enters a dust collection pipeline through a pressing block accommodating cavity for dust collection, and after dust collection, the pressing block continues to move towards the pole ear, so that the flattening of the pole ear is completed. Therefore, flattening and dust removal of the lugs can be completed simultaneously, additional circulation equipment is not needed, additional hardware cost is reduced, and the space utilization rate of the equipment is improved.

According to some embodiments of the utility model, the tab press block assembly further comprises: the fixed plate faces towards at least part of the surface of the pressing block and is abutted with at least part of the surface of the movable shell, which faces away from the pressing block, and the fixed plate faces away from at least part of the surface of the pressing block and is abutted with at least part of the surface of the fixed shell, which faces towards the pressing block.

According to some embodiments of the utility model, the tab press block assembly further comprises: the baffle, the baffle sets up in the briquetting holds the intracavity, the baffle with be formed with the clearance between the fixed plate, the both ends of baffle extending direction are formed with connecting portion, the baffle passes through connecting portion with the fixed plate is connected, remove the ascending one end of casing extending direction and pass the clearance.

According to some embodiments of the utility model, the tab press block assembly further comprises: the first elastic piece is arranged in the pressing block accommodating cavity and connected with the fixing plate, one end of the movable shell is provided with a fixing part extending towards the pressing block, and the first elastic piece is suitable for supporting the fixing part.

According to some embodiments of the utility model, the tab press block assembly further comprises: the second elastic piece is arranged on one side of the supporting part, which is away from the first elastic piece.

According to some embodiments of the utility model, the baffle further comprises: the elastic piece supporting part is arranged on one side of the baffle plate, which faces the first elastic piece, and a supporting surface which is suitable for supporting the first elastic piece is formed on the elastic piece supporting part.

According to some embodiments of the utility model, the press block includes a main body portion provided at one end in the direction in which the press block extends, and a flattening portion provided at the other end in the direction in which the press block extends, and the fixed housing is formed with an opening through which the main body portion is adapted to pass.

According to some embodiments of the utility model, the flattened portion has a diameter less than a diameter of the body portion.

According to some embodiments of the utility model, a buffer portion is formed at the other end of the extending direction of the moving housing, and the extending direction of the buffer portion is perpendicular to the extending direction of the moving housing.

According to some embodiments of the utility model, the press block is welded with the stationary housing; or the pressing block is connected with the fixed shell by adopting a fastener.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a top view of a tab press block assembly according to one embodiment of the utility model;

fig. 2 is a cross-sectional view of fig. 1 along the AA' direction.

Reference numerals:

1: a tab briquetting assembly; 11: a housing; 111: a fixed housing; 112: a movable housing; 1121: a connection part; 1122: a buffer section; 12: briquetting; 121: a main body portion; 122: a flattening section; 13: a dust collection pipeline; 14: a fixing plate; 15: a baffle; 151: a fixing part; 152: an elastic member supporting part; 16: a first elastic member; 17: a second elastic member; 21: a tab; 22: pole pieces.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the related art, flattening and dust removal of the tab are independently performed, and the operation is performed on two devices so as to avoid the conflict of the two devices in space. Thus, an additional set of transfer equipment is required to move the workpiece from the first equipment to the second equipment. Or directly perforating the pressing block to form an air passage, and sucking dust through the air passage on the pressing block. However, due to the limitation of the size of the pressing block, the size of the opening is smaller (smaller than the maximum width of the pressing block), the dust collection capability of the system can be limited, and the dust collection effect is poor.

A tab press block assembly 1 according to an embodiment of the present utility model is described below with reference to fig. 1 and 2.

According to some embodiments of the present utility model, referring to fig. 1 and 2, the tab press block assembly 1 includes a housing 11, a press block 12, and a dust suction duct 13.

Wherein, referring to fig. 2, the housing 11 includes a fixed housing 111 and a movable housing 112, an inner circumferential wall of the fixed housing 111 and an inner circumferential wall of the movable housing 112 together define a press block accommodating chamber, and the movable housing 112 is selectively movable toward or away from the tab 21; the pressing block 12 is arranged in the pressing block accommodating cavity and connected with the fixed shell 111, the pressing block 12 is arranged at intervals with the shell 11, and the pressing block 12 can selectively move towards or away from the lug 21; the dust collection pipe 13 is connected to the fixed housing 111 and has a gas circulation chamber formed therein, and the gas circulation chamber communicates with the compact housing chamber. Specifically, the fixed housing 111 may have a cubic structure, an axis of the cube extends in the same direction as that of the pressing block 12, an opening is formed in the bottom of the housing 11, and the pressing block 12 presses the tab 21 flat through the opening. The press block 12 is also of a cubic structure, and the movable housing 112 is provided on one side of the press block 12, that is, the housing 11 on one side of the press block 12 is formed by the movable housing 112 and the fixed housing 111 together, that is, the housing 11 surrounding the press block 12 but having an opening formed at one end thereof is formed. It should be noted that, the extending direction of the pressing block 12 is the vertical direction in fig. 2.

According to the lug press block assembly 1, the shell 11 comprises the fixed shell 111 and the movable shell 112, and through the movement of the movable shell 12, the space through which air flows in the dust removal process is adjusted, so that the dust removal effect is ensured. Specifically, in the operation process, the pressing block 12 and the fixed housing 111 stop after moving to a certain position towards the tab 21, for example, the distance between the pressing block 12 and the tab 21 is 4 mm-5 mm, the movable housing 112 also moves towards the tab 21 due to the action of gravity until contacting with the pole piece 22, at this time, a negative pressure air source connected with the dust removing pipeline 13 is started, air is sucked from the side edge of the tab 21, and enters the dust collecting pipeline 13 through the pressing block accommodating cavity to remove dust; after the dust removal is finished, the pressing block 12 continues to move towards the lug 21, and flattening of the lug 21 is completed. Therefore, flattening and dust removal of the lug 21 can be completed simultaneously, additional circulation equipment is not needed, additional hardware cost is reduced, and the space utilization rate of the equipment is improved. It should be noted that, because there is the decay after the gas flow rate of negative pressure air supply flows out the negative pressure air supply, if the casing 11 is far away from the utmost point ear 21, the gas flow rate that reaches the utmost point ear 21 surface is too little to play the effect of dust removal, and this application is through setting up the size that removes casing 112 adjustment gas flow channel in order to guarantee the gas flow rate.

According to some embodiments of the utility model, referring to fig. 2, the tab press block assembly 1 further comprises: and a fixed plate 14, wherein at least part of the surface of the fixed plate 14 facing the press block 12 is abutted with at least part of the surface of the movable housing 112 facing away from the press block 12, and at least part of the surface of the fixed plate 14 facing away from the press block 12 is abutted with at least part of the surface of the fixed housing 111 facing the press block 12. That is, the fixing plate 14 is provided between the movable housing 112 and the fixed housing 111, and serves to fix the movable housing 112, and to enhance the sealing effect between the movable housing 112 and the fixed housing 111, thereby preventing air leakage.

According to some embodiments of the utility model, referring to fig. 2, the tab press block assembly 1 further comprises: baffle 15, baffle 15 sets up in briquetting 12 holds the intracavity, is formed with the clearance between baffle 15 and the fixed plate 14, and baffle 15 direction of extension's both ends are formed with fixed part 151, and baffle 15 passes through fixed part 151 to be connected with fixed plate 14, and the one end in the direction of extension of movable housing 112 passes the clearance. Thereby, the movement of the movable housing 112 in the horizontal direction can be avoided.

According to some embodiments of the utility model, referring to fig. 2, the tab press block assembly 1 further comprises: the first elastic member 16, the first elastic member 16 is disposed in the press block accommodating cavity and connected with the fixed plate 14, one end of the movable housing 112 is provided with a connection portion 1121 extending toward the press block 12, and the first elastic member 16 is adapted to support the connection portion 1121. Specifically, when the press block 12 is not in operation, the free end (the end contacting the pole piece 22) of the movable housing 112 is in a suspended state, and is supported by the first elastic member 16, so that the movable housing 112 is prevented from falling.

According to some embodiments of the utility model, referring to fig. 2, the tab press block assembly 1 further comprises: and a second elastic member 17, the second elastic member 17 being disposed at a side of the connection portion 1121 facing away from the first elastic member 16. Specifically, the second elastic member 17 and the first elastic member 16 are arranged along the extending direction of the movable housing 112, and when the press block 12 does not work, the free end (the end contacting the pole piece 22) of the movable housing 112 is in a suspended state, and is supported by the first elastic member 16, so that the movable housing 112 is prevented from falling; when the pressing block 12 starts to work, after the pressing block 12 moves to a certain position towards the tab 21, the movable shell 112 moves towards the pole piece 22 due to the action of gravity until the free end of the movable shell 112 contacts with the pole piece 22, a negative pressure air source is started to remove dust from the tab 21, after the dust removal is finished, the pressing block 12 and the fixed shell 111 continue to be pressed down to flatten the tab 21, in the process, the second elastic piece 17 is compressed, and a certain pressure is applied to the movable shell 112, so that the movable shell 112 and the pole piece 22 are tightly attached. The first elastic member 16 and the second elastic member 17 may be configured as springs.

According to some embodiments of the utility model, referring to fig. 2, baffle 15 further comprises: the elastic member support portion 152, the elastic member support portion 152 is disposed on a side of the baffle 15 facing the first elastic member 16, and a support surface adapted to support the first elastic member 16 is formed on the elastic member support portion 152. Therefore, the elastic piece is prevented from falling off, and the service life of the elastic piece is prolonged.

According to some embodiments of the present utility model, referring to fig. 2, the press block 12 includes a body portion 121 and a flattening portion 122, the body portion 121 is disposed at one end of the press block 12 in the extending direction, the flattening portion 122 is disposed at the other end of the press block 12 in the extending direction, an opening is formed in the fixing case 111, and the body portion 121 is adapted to pass through the opening. Specifically, the main body 121 passes through the opening to be connected with the driving member, and further, the pressing block 12 is driven to move toward or away from the tab 21 by the driving member.

According to some embodiments of the utility model, referring to fig. 2, the diameter of flattened section 122 is smaller than the diameter of body section 121. Thereby, the rigidity of the compact 12 is ensured while avoiding an excessive diameter of the flattened portion 122. The diameter referred to herein is a diameter of a cross section of the compact 12 in the horizontal direction, and for example, when the cross section is circular, the diameter is a diameter of a circle, and when the cross section is square, the diameter is a length of a diagonal line of the square.

According to some embodiments of the present utility model, referring to fig. 2, a buffer portion 1122 is formed at the other end of the extension direction of the movable housing 112, and the extension direction of the buffer portion 1122 is perpendicular to the extension direction of the movable housing 112. Specifically, when the moving housing 112 extends in the vertical direction, the buffer 1122 may extend in the horizontal direction, and thus, the moving housing 112 may be prevented from damaging the surface of the pole piece 22 to some extent.

According to some embodiments of the utility model, the press block 12 is welded with the fixed housing 111; or the press block 12 is connected with the fixed housing 111 by fasteners.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A tab briquetting assembly, comprising:

the shell comprises a fixed shell and a movable shell, wherein the inner peripheral wall of the fixed shell and the inner peripheral wall of the movable shell jointly define a pressing block accommodating cavity, and the movable shell can selectively move towards or away from the lug;

the pressing block is arranged in the pressing block accommodating cavity and connected with the fixed shell, the pressing block is arranged at intervals with the shell, and the pressing block can selectively move towards or away from the lug;

the dust collection pipeline is connected with the fixed shell, a gas circulation cavity is formed in the dust collection pipeline, and the gas circulation cavity is communicated with the pressing block accommodating cavity.

2. The tab press assembly of claim 1, further comprising: the fixed plate faces towards at least part of the surface of the pressing block and is abutted with at least part of the surface of the movable shell, which faces away from the pressing block, and the fixed plate faces away from at least part of the surface of the pressing block and is abutted with at least part of the surface of the fixed shell, which faces towards the pressing block.

3. The tab press assembly of claim 2, further comprising: the baffle, the baffle sets up in the briquetting holds the intracavity, the baffle with be formed with the clearance between the fixed plate, the both ends of baffle extending direction are formed with connecting portion, the baffle passes through connecting portion with the fixed plate is connected, remove the ascending one end of casing extending direction and pass the clearance.

4. The tab press assembly of claim 3, further comprising: the first elastic piece is arranged in the pressing block accommodating cavity and connected with the fixing plate, one end of the movable shell is provided with a fixing part extending towards the pressing block, and the first elastic piece is suitable for supporting the fixing part.

5. The tab press assembly of claim 4, further comprising: the second elastic piece is arranged on one side of the connecting part, which is away from the first elastic piece.

6. The tab press assembly of claim 5, wherein the baffle further comprises: the elastic piece supporting part is arranged on one side of the baffle plate, which faces the first elastic piece, and a supporting surface which is suitable for supporting the first elastic piece is formed on the elastic piece supporting part.

7. The tab press block assembly according to claim 1, wherein the press block includes a main body portion provided at one end of the press block extending direction and a flattened portion provided at the other end of the press block extending direction, and an opening is formed in the stationary housing, the main body portion being adapted to pass through the opening.

8. The tab press assembly of claim 7, wherein the flattened portion has a diameter less than a diameter of the body portion.

9. The tab press block assembly according to claim 1, wherein a buffer portion is formed at the other end of the moving housing in the extending direction, and the extending direction of the buffer portion is perpendicular to the extending direction of the moving housing.

10. The tab press assembly of claim 1, wherein the press block is welded with the stationary housing; or the pressing block is connected with the fixed shell by adopting a fastener.