Dust removal component and welding equipment

Abstract

The utility model belongs to the technical field of batteries, and discloses a dust removal component and welding equipment, the dust removal component is used for removing welding slag generated when the inner wall of a battery shell and a collector plate are welded, the dust removal component comprises a shell and a dust suction pipe arranged on the shell, the shell is provided with a cavity and an air suction port communicated with the cavity, and the dust suction pipe is arranged on the shell. The air suction port is used for being communicated with the air suction element, one end of the dust suction pipe is communicated with the cavity, and the other end of the dust suction pipe can extend into the battery shell and is close to the welding position, so that the distance between the adsorption position of the dust suction pipe and welding slag is greatly shortened, the dust removal effect can be greatly improved, and the probability that the welding slag is left in the battery shell to affect the chemical performance of a battery is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a dust removal component and welding equipment. Background Art

[0002] The collector plate is usually set in the battery shell and is the intermediate component for the electrical connection between the pole ear and the pole. In actual production, after the collector plate is installed in the battery shell, the edge of the collector plate and the inner wall of the battery shell need to be welded to fix the collector plate in the battery shell. During the welding process, welding slag will be generated on the edge of the collector plate and the inner wall area of ​​the battery shell. If the welding slag falls into the battery shell, it will affect the chemical properties of the battery. Therefore, the welding slag needs to be removed during the welding process.

[0003] Therefore, it is urgent to propose a dust removal component and welding equipment to solve the above technical problems. Utility Model Content

[0004] The first object of the utility model is to provide a dust removal component, which can significantly shorten the distance between the adsorption position of the dust suction pipe and the welding slag, thereby improving the dust removal effect and reducing the probability of welding slag remaining in the battery shell.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A dust removal component is used to remove welding slag generated when welding the inner wall of a battery shell and a current collecting plate, and the dust removal component includes:

[0007] A shell body, wherein the shell body is provided with a cavity and an air inlet communicated with the cavity, and the air inlet is used to communicate with the air inlet element;

[0008] A dust suction tube is arranged on the shell, one end of the dust suction tube is connected with the cavity, and the other end is used to extend into the battery shell and close to the welding position.

[0009] Optionally, the dust removal component further includes a connecting pipe, which is disposed on the shell, and the air intake port is connected to the air intake element through the connecting pipe.

[0010] Optionally, a through slot is provided on the side wall of the shell, and one end of the through slot is configured to be disposed toward the battery shell.

[0011] Optionally, a baffle is provided at the other end of the through slot, and a through hole for passing the inert gas delivery pipe is provided on the baffle, and the through hole is communicated with the through slot.

[0012] Optionally, one end of the vacuum tube that extends into the battery shell is the adsorption end, and an opening is provided on the side wall of the vacuum tube, and the opening is connected to the pipe mouth of the adsorption end, and the opening is used to be set toward the welding position.

[0013] The second object of the utility model is to provide a welding device that can reduce the probability of welding slag remaining in the battery shell, thereby improving the reliability of the battery's chemical performance.

[0014] To achieve this purpose, the utility model adopts the following technical solutions:

[0015] A welding device comprises a frame and the above-mentioned dust removal component, wherein a battery shell is connected to the frame.

[0016] Optionally, the welding equipment further comprises a limiting member, which is arranged on the frame and has a limiting hole, and the limiting member can be sleeved on the outer wall of the battery shell through the limiting hole.

[0017] Optionally, a protrusion is provided on the inner wall of the limiting hole, and the protrusion is configured to be located above the battery shell, and a surface of the protrusion facing the side of the battery shell is used to abut against an edge of the opening of the battery shell.

[0018] Optionally, the protrusions extend along the circumference of the limiting hole and are connected end to end, or there are multiple protrusions, which are spaced apart along the circumference of the limiting hole.

[0019] Optionally, a avoidance groove is provided on one side of the shell body facing the battery shell, and the limiting member extends into the avoidance groove.

[0020] Beneficial effects of the utility model:

[0021] The dust removal component provided by the utility model has a shell body provided with a cavity and an air suction port connected to the cavity, the air suction port is used to be connected to the air suction element, one end of the dust suction pipe is connected to the cavity, when the collecting plate and the inner wall of the battery shell are welded, the other end of the dust suction pipe can be extended into the interior of the battery shell and close to the welding position, which greatly shortens the distance between the adsorption position of the dust suction pipe and the welding slag, thereby greatly improving the dust removal effect and reducing the probability of welding slag remaining in the battery shell and affecting the chemical properties of the battery.

[0022] The welding equipment provided by the utility model adopts the above-mentioned dust removal component. When welding the collecting plate and the inner wall of the battery shell, the dust suction tube can extend into the interior of the battery shell and close to the welding position, so as to efficiently remove the welding slag generated during welding, thereby reducing the probability of welding slag remaining in the battery shell, and providing a strong guarantee for the reliability of the battery's chemical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the dust removal component provided by the embodiment of the utility model;

[0024] Figure 2 It is a schematic cross-sectional structure diagram of a dust removal component provided by an embodiment of the utility model;

[0025] Figure 3It is a schematic diagram of the assembly structure of the dust removal component, the limiter, the current collecting plate and the battery shell provided in the embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the structure of the dust removal component provided by the embodiment of the utility model;

[0027] Figure 5 It is a schematic diagram of the exploded structure of the dust removal component, the limiter, the current collecting plate and the battery shell provided in the embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the structure of the limiter provided in the embodiment of the utility model.

[0029] In the figure:

[0030] 1. Battery shell; 2. Current collector; 3. Welding position;

[0031] 10. dust removal component; 20. position limiting component; 21. position limiting hole; 22. protruding part;

[0032] 100, shell; 110, cavity; 120, through groove; 130, baffle; 131, perforation; 140, avoidance groove; 200, connecting pipe; 300, dust suction pipe; 310, suction end; 320, opening. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0036] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0037] The present embodiment provides a dust removal component for removing welding slag generated when welding the inner wall of a battery shell (a steel shell or a battery shell made of other materials) and a current collecting plate. The dust removal component can significantly shorten the distance between the adsorption position of the dust suction tube and the welding slag, thereby improving the dust removal effect and reducing the probability of welding slag remaining in the battery shell.

[0038] Specifically, Figures 1 to 3 As shown, the dust removal component 10 includes a shell 100 and a dust suction pipe 300, wherein the shell 100 is provided with a cavity 110 and an air suction port connected to the cavity 110, the air suction port is used to connect with an air suction element such as an air pump (not shown in the figure), and the dust suction pipe 300 is arranged on the shell 100, one end of the dust suction pipe 300 is connected to the cavity 110, and the other end is used to extend into the battery shell 1 and close to the welding position 3.

[0039] The dust removal component 10 provided in this embodiment has a shell 100 provided with a cavity 110 and an air intake port connected to the cavity 110, the air intake port is used to connect with the air intake element, one end of the dust suction tube 300 is connected to the cavity 110, when the collecting plate 2 and the inner wall of the battery shell 1 are welded, the other end of the dust suction tube 300 can extend into the interior of the battery shell 1 and close to the welding position 3, which greatly shortens the distance between the adsorption position of the dust suction tube 300 and the welding slag, thereby greatly improving the dust removal effect and reducing the probability of welding slag remaining in the battery shell 1 and affecting the chemical properties of the battery.

[0040] Furthermore, if Figures 1 to 4As shown, one end of the dust suction pipe 300 that is used to extend into the battery shell 1 is the suction end 310, and an opening 320 is provided on the side wall of the dust suction pipe 300, and the opening 320 is connected to the nozzle of the suction end 310, and the opening 320 is used to be arranged toward the welding position 3. The arrangement of the opening 320 further shortens the path of the welding slag entering the dust suction pipe 300, which can further improve the dust removal effect. Preferably, the opening 320 is arranged close to the suction end 310.

[0041] Alternatively, if Figures 1 to 4 As shown, the dust removal component also includes a connecting pipe 200, which is arranged on the shell 100, one end of the connecting pipe 200 is connected to the air intake port, and the other end is used to communicate with the air intake element to achieve communication between the air intake port and the air intake element.

[0042] Alternatively, if Figures 1 to 4 As shown, a through slot 120 is opened on the side wall of the shell 100, and one end of the through slot 120 is configured to be set toward the battery shell 1, so that the welding head (not shown in the figure) can extend through the through slot 120 to the welding position 3 in the battery shell 1 to weld the collecting plate 2 to the inner wall of the battery shell 1.

[0043] Furthermore, if Figures 1 to 4 As shown, the cavity 110 is arranged around the axis of the through groove 120. That is to say, in this embodiment, the shell 100 is roughly crescent-shaped, the crescent-shaped opening 320 is the through groove 120, and the cavity 110 extends roughly in a crescent shape along the extension direction of the crescent-shaped shell 100. This structural design makes the overall structure of the dust removal component 10 more compact and has better consistency.

[0044] Furthermore, if Figures 1 to 4 As shown, the connecting tube 200 and the dust suction tube 300 are respectively located at the two ends of the crescent-shaped shell 100 (i.e., the crescent-shaped cavity), so that the cavity 110 can store part of the welding slag, thereby avoiding the problem that the welding slag entering the connecting tube 200 falls back into the dust suction tube 300 and finally falls back into the battery shell 1.

[0045] Usually, the welding of the collecting plate 2 and the inner wall of the battery shell 1 is achieved by laser welding. During the laser welding process, an inert gas needs to be supplied to the welding position 3 to ensure the smooth progress of the laser welding. Figures 1 to 4 As shown, in this embodiment, a baffle 130 is provided at the other end of the through groove 120, and a through hole 131 is provided on the baffle 130 for passing an inert gas delivery pipe (not shown in the figure), and the through hole 131 is connected to the through groove 120, so that the inert gas delivery pipe can extend into the welding position 3 in the battery shell 1 through the through hole 131, so that the laser welding of the collecting plate 2 and the inner wall of the battery shell 1 can be carried out normally.

[0046] It is understandable that the dust removal component 10 provided in this embodiment can not only remove welding slag (metal dust, etc.), but also other non-metallic dust in the battery shell 1 can be removed through the dust suction tube 300 extending into the battery shell 1.

[0047] This embodiment also provides a welding device, which can reduce the probability of welding slag remaining in the battery shell 1, thereby improving the reliability of the battery's chemical performance.

[0048] Specifically, the welding equipment includes a frame and the above-mentioned dust removal component 10, and the battery shell 1 is connected to the frame. The welding equipment adopts the above-mentioned dust removal component 10. When welding the collecting plate 2 and the inner wall of the battery shell 1, the dust suction tube 300 can extend into the interior of the battery shell 1 and close to the welding position 3, and the welding slag generated during welding is efficiently sucked out, thereby reducing the probability of welding slag remaining in the battery shell 1, and providing a strong guarantee for the reliability of the battery's chemical performance.

[0049] Furthermore, if Figures 1 to 6 As shown, the welding equipment also includes a limit member 20, which is arranged on the frame. The limit member 20 is provided with a limit hole 21. The limit member 20 can be sleeved on the outer wall of the battery shell 1 through the limit hole 21, thereby achieving radial limitation of the battery shell 1, preventing the battery shell 1 from radial displacement during the welding process, and improving the welding accuracy.

[0050] Furthermore, if Figures 1 to 6 As shown, the inner wall of the limiting hole 21 is provided with a protrusion 22, which is configured to be located above the battery shell 1, and the surface of the protrusion 22 facing the side of the battery shell 1 is used to abut against the edge of the opening 320 of the battery shell 1, thereby achieving axial limitation of the battery shell 1, preventing the battery shell 1 from axial displacement during welding, and improving welding accuracy.

[0051] Alternatively, if Figures 1 to 6 As shown, the protrusion 22 extends along the circumference of the limiting hole 21 and is connected end to end to improve the reliability of the protrusion 22 in axially limiting the battery shell 1. It can be understood that in other embodiments, multiple protrusions 22 (for example, two, three, four or even more) can also be provided, and the multiple protrusions 22 are distributed at intervals along the circumference of the limiting hole 21, which can also improve the reliability of the protrusion 22 in axially limiting the battery shell 1.

[0052] Alternatively, if Figures 1 to 6 As shown, a avoidance groove 140 is provided on the side of the shell 100 facing the battery shell 1, and the depth direction of the avoidance groove 140 is parallel to the axial direction of the limiting hole 21. The limiting member 20 extends into the avoidance groove 140 so that the dust suction tube 300 can smoothly extend into the battery shell 1 and approach the welding position 3.

[0053] It should be pointed out that the dust removal component 10 and welding equipment provided in this embodiment are applicable to both cylindrical batteries and prismatic batteries. The following briefly describes the usage of the dust removal component 10 and welding equipment provided in this embodiment using cylindrical batteries as an example.

[0054] like Figures 1 to 6 As shown, the collecting tray 2 is placed in the battery shell 1, and the limiting member 20 is put on the outer wall of the battery shell 1, so that the surface of the protrusion 22 facing the battery shell 1 is in contact with the edge of the opening 320 of the battery shell 1, and then the dust suction pipe 300 of the dust removal component 10 passes through the limiting hole 21 of the limiting member 20 and extends into the battery shell 1. To ensure the accuracy of the welding position 3 between the collecting tray 2 and the inner wall of the battery shell 1, a certain distance can be left between the suction end 310 of the dust suction pipe 300 and the collecting tray 2 (the minimum distance is preferably greater than or equal to 0.5mm), the opening 320 of the dust suction pipe 300 is directed toward the welding position 3, the connecting pipe 200 is connected to the suction element, and the inert gas is sucked. One end of the inert gas delivery tube is connected to the inert gas source, and the other end passes through the through hole 131 and extends into the battery shell 1 and makes it close to the welding position 3. The inert gas source and the suction element are turned on, so that the welding head is extended into the welding position 3 in the battery shell 1 through the orifice of the through hole for welding. The welding slag generated by welding flows through the dust suction pipe 300, the cavity 110 and the connecting pipe 200 in sequence through the opening 320 to realize the suction of the welding slag. The driving part (servo motor, etc.) of the welding equipment drives the battery shell 1 to rotate with its own axis as the rotating axis, while keeping the welding head, the limit part 20 and the dust removal component 10 stationary. When the battery shell 1 rotates one circle, the welding is completed.

[0055] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A dust removal component for removing welding slag generated when welding the inner wall of a battery shell (1) and a current collecting plate (2), characterized in that: The dust removal component (10) comprises: A housing (100), the housing (100) being provided with a cavity (110) and an air intake port communicating with the cavity (110), the air intake port being used to communicate with an air intake element; A dust suction pipe (300), wherein the dust suction pipe (300) is arranged on the shell (100), one end of the dust suction pipe (300) is connected to the cavity (110), and the other end is used to extend into the battery shell (1) and is close to the welding position (3).

2. The dust removal component according to claim 1, characterized in that: The dust removal component further comprises a connecting pipe (200), wherein the connecting pipe (200) is arranged on the housing (100), and the air intake port is connected to the air intake element through the connecting pipe (200).

3. The dust removal component according to claim 1, characterized in that: A through slot (120) is provided on the side wall of the shell (100), and one end of the through slot (120) is configured to be disposed toward the battery shell (1).

4. The dust removal component according to claim 3, characterized in that: A baffle (130) is provided at the other end of the through groove (120), and a through hole (131) for passing an inert gas delivery pipe is provided on the baffle (130), and the through hole (131) is communicated with the through groove (120).

5. The dust removal component according to any one of claims 1 to 4, characterized in that: One end of the dust suction tube (300) that is used to extend into the battery shell (1) is a suction end (310), an opening (320) is provided on the side wall of the dust suction tube (300), and the opening (320) is connected to the pipe mouth of the suction end (310), and the opening (320) is used to be arranged toward the welding position (3).

6. A welding device, characterized in that: It comprises a frame and a dust removal component (10) according to any one of claims 1 to 5, wherein the battery housing (1) is connected to the frame.

7. The welding device according to claim 6, characterized in that The welding device further comprises a limiting member (20), wherein the limiting member (20) is arranged on the frame, and the limiting member (20) is provided with a limiting hole (21), and the limiting member (20) can be sleeved on the outer wall of the battery shell (1) through the limiting hole (21).

8. The welding device according to claim 7, characterized in that The inner wall of the limiting hole (21) is provided with a protrusion (22), and the protrusion (22) is configured to be located above the battery shell (1), and the surface of the protrusion (22) facing the side of the battery shell (1) is used to abut against the edge of the opening (320) of the battery shell (1).

9. The welding device according to claim 8, characterized in that The protrusions (22) extend along the circumference of the limiting hole (21) and are connected end to end, or there are multiple protrusions (22), and the multiple protrusions (22) are distributed at intervals along the circumference of the limiting hole (21).

10. The welding equipment according to any one of claims 7 to 9, characterized in that: A position-avoiding groove (140) is provided on one side of the housing (100) facing the battery shell (1), and the position-limiting member (20) extends into the position-avoiding groove (140).

Images