Dust suction hood for battery welding, battery welding device and battery production system

Abstract

The utility model discloses a dust suction cover for battery welding, a battery welding device and a battery production system, and belongs to the field of welding dust suction. Comprising a dust suction cover shell which is a hollow cover with two open ends, a first opening is formed in the first end of the dust suction cover shell, and a second opening is formed in the second end of the dust suction cover shell; the dust extraction lining is a hollow lining with openings in the two ends, a first sub-opening is formed in the first end of the dust extraction lining, a second sub-opening is formed in the second end of the dust extraction lining, the dust extraction lining is arranged in the dust extraction cover shell, the first opening and the first sub-opening are located on the same side, and the second opening and the second sub-opening are located on the same side; a gap is formed between the dust extraction lining and the inner wall of the dust extraction housing; the blocking piece is arranged between the dust extraction lining and the dust extraction cover shell, and the blocking piece blocks a gap between the first opening and the first sub-opening in the circumferential direction of the dust extraction lining; and the dust suction pipe assembly is connected to the outer wall of the dust suction cover shell, and the dust suction pipe assembly communicates with the gap.

Description

Technical Field

[0001] The present application belongs to the field of welding dust extraction, and specifically relates to a battery welding dust extraction hood, a battery welding device and a battery production system. Background Art

[0002] With the development of technology, vehicles have become an indispensable means of transportation for people's daily travel. Typically, power batteries are installed in vehicles to provide power for the vehicles. During the production of power batteries, they need to be welded. During the welding process, a dust hood is usually set up, and the battery to be welded is placed under the dust hood. During the welding process, the dust hood absorbs the welding slag. However, in related technologies, the dust hood is less effective in absorbing welding slag, which affects the welding of the battery. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a battery welding dust hood, a battery welding device and a battery production system, which at least solve the problem that the dust hood has a poor effect in absorbing welding slag, which affects the welding of the battery.

[0004] In a first aspect, an embodiment of the present application provides a battery welding dust extraction hood, the battery welding dust extraction hood comprising:

[0005] A dust extraction cover, wherein the dust extraction cover is a hollow cover with openings at both ends, wherein the first end of the dust extraction cover has a first opening, and the second end of the dust extraction cover has a second opening;

[0006] A dust extraction sleeve, wherein the dust extraction sleeve is a hollow sleeve with openings at both ends, wherein the first end of the dust extraction sleeve has a first sub-opening, and the second end of the dust extraction sleeve has a second sub-opening. The dust extraction sleeve is disposed in the dust extraction housing, and the first opening and the first sub-opening are located on the same side, and the second opening and the second sub-opening are located on the same side. A gap is formed between the dust extraction sleeve and the inner wall of the dust extraction housing;

[0007] a blocking member disposed between the dust extraction bushing and the dust extraction housing, wherein the blocking member blocks the gap between the first opening and the first sub-opening along the circumferential direction of the dust extraction bushing, and the gap between the second opening and the second sub-opening is used to prevent welding slag from entering the gap;

[0008] A dust extraction pipe assembly is connected to the outer wall of the dust extraction cover, and the dust extraction pipe assembly is communicated with the gap, and the dust extraction pipe assembly is used to remove welding slag entering the gap.

[0009] Optionally, at the first opening, the blocking member is respectively connected to the dust extraction hood and the dust extraction sleeve, and the blocking member is arranged around the first sub-opening of the dust extraction sleeve so that the blocking member blocks the gap between the first opening and the first sub-opening.

[0010] Optionally, the dust extraction pipe assembly includes a plurality of dust extraction pipe bodies;

[0011] A plurality of through holes are provided on the outer wall of the dust extraction cover, and the plurality of through holes are distributed at intervals along the circumferential direction of the dust extraction cover, and one end of a dust extraction tube body is connected to one of the through holes.

[0012] Optionally, in the circumferential direction of the dust extraction housing, the distance between any two adjacent through holes is equal.

[0013] Optionally, a central axis of the through hole is inclined relative to a central axis of the dust extraction housing in a direction toward the second opening.

[0014] Optionally, along the direction from the first opening to the second opening, the cross-sectional area of the gap gradually decreases.

[0015] Optionally, the dust extraction housing and the dust extraction sleeve are both truncated cone-shaped, the diameter of the first opening is smaller than the diameter of the second opening, and the diameter of the first sub-opening is smaller than the diameter of the second sub-opening.

[0016] Optionally, the dust extraction cover, the dust extraction sleeve and the sealing member are an integrally formed structure.

[0017] In a second aspect, an embodiment of the present application provides a battery welding device, comprising a positioning table, a welding nozzle, an air knife assembly, a laser welding galvanometer lens, and a battery welding dust extraction hood as described in any one of the first aspects above;

[0018] The welding nozzle is arranged above the positioning platform, and the positioning platform is used to fix the battery module. The second opening faces the welding nozzle, and the projection of the welding nozzle in the direction from the welding nozzle to the positioning platform is located within the projection of the second opening in the direction from the welding nozzle to the positioning platform. The laser welding galvanometer lens is located on one side of the first opening, and the air knife assembly is located between the first opening and the laser welding galvanometer lens.

[0019] In a third aspect, an embodiment of the present application provides a battery production system, which includes the battery welding device described in the second aspect above.

[0020] In the embodiment of the present application, since the dust hood is a hollow hood with openings at both ends, the first end of the dust hood has a first opening, and the second end of the dust hood has a second opening. Therefore, it is equivalent to that the dust hood has a accommodating cavity, so that the dust sleeve can be placed in the accommodating cavity, that is, the dust sleeve is placed in the dust hood, and the first sub-opening of the dust sleeve and the first opening of the dust hood are located on the same side, and the second sub-opening of the dust sleeve and the second opening of the dust hood are located on the same side, there will be a gap between the dust sleeve and the inner wall of the dust hood. Since the sealing member is disposed between the dust extraction sleeve and the dust extraction shell, and the sealing member blocks the gap between the first opening and the first sub-opening along the circumferential direction of the dust extraction sleeve, in actual application, the welding nozzle for welding the battery module can be located within the range of the second sub-opening, so that the welding slag generated during the welding process can pass through the gap between the second opening and the second sub-opening, ensuring that during the welding process of the battery module, the welding slag can move away from the battery module with the battery module as the center, and the welding slag enters the gap between the second opening and the second sub-opening. Since the dust extraction pipe assembly is connected to the outer wall of the dust extraction shell, and the dust extraction pipe assembly is connected to the gap, during the welding process of the battery module, suction can be performed through the dust extraction pipe assembly, so that the welding slag can quickly pass through the gap between the second opening and the second sub-opening and enter the gap between the dust extraction shell and the dust extraction sleeve, so that the sealing member can prevent the welding slag from moving to the outside of the dust extraction shell, ensuring that the welding slag moves into the dust extraction pipe assembly, and avoiding the accumulation of welding slag around the battery module, resulting in the problem of affecting the welding of the battery module. That is, in the embodiment of the present application, by providing a dust extraction hood and a dust extraction sleeve, a gap is formed between the dust extraction hood and the dust extraction sleeve, and the sealing member blocks the gap between the first opening and the first sub-opening along the circumferential direction of the dust extraction sleeve, and the dust extraction tube assembly is connected to the gap, thereby ensuring that when welding the battery module, the welding slag or dust generated by the welding can quickly enter the gap between the dust extraction hood and the dust extraction sleeve through the gap between the second opening and the second sub-opening, thereby avoiding the accumulation of welding slag or dust around the battery module, which may affect the welding of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram showing a battery welding dust extraction hood provided in an embodiment of the present application;

[0022] Figure 2 A side view of a battery welding dust extraction hood provided in an embodiment of the present application is shown;

[0023] Figure 3 express Figure 2 Cross-section at AA;

[0024] Figure 4A front view of a battery welding dust extraction hood provided in an embodiment of the present application is shown;

[0025] Figure 5 An axonometric view of a battery welding dust extraction hood provided in an embodiment of the present application;

[0026] Figure 6 One of the schematic diagrams showing a battery welding device provided in an embodiment of the present application;

[0027] Figure 7 A second schematic diagram showing a battery welding device provided in an embodiment of the present application.

[0028] Reference numerals:

[0029] 001: battery module; 10: dust extraction cover; 101: first opening; 102: second opening; 20: dust extraction bushing; 201: first sub-opening; 202: second sub-opening; 30: blocking piece; 40: dust extraction tube assembly; 41: dust extraction tube body; 11: through hole; 100: positioning table; 200: welding nozzle; 300: air knife assembly; 400: laser welding galvanometer lens; L: gap. DETAILED DESCRIPTION

[0030] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] like Figures 1 to 5 As shown, the battery welding dust extraction hood includes: a dust extraction hood shell 10, which is a hollow hood with openings at both ends, the first end of the dust extraction hood shell 10 has a first opening 101, and the second end of the dust extraction hood shell 10 has a second opening 102; a dust extraction sleeve 20, which is a hollow sleeve with openings at both ends, the first end of the dust extraction sleeve 20 has a first sub-opening 201, and the second end of the dust extraction sleeve 20 has a second sub-opening 202, the dust extraction sleeve 20 is arranged in the dust extraction hood shell 10, and the first opening 101 and the first sub-opening 201 are located on the same side, and the second opening 102 and the second sub-opening 20 2 are located on the same side, and a gap L is defined between the dust extraction bushing 20 and the inner wall of the dust extraction housing 10; a blocking member 30 is provided between the dust extraction bushing 20 and the dust extraction housing 10, and the blocking member 30 blocks the gap L between the first opening 101 and the first sub-opening 201 along the circumferential direction of the dust extraction bushing 20, and the gap L between the second opening 102 and the second sub-opening 202 is used to allow welding slag to enter the gap L; a dust extraction pipe assembly 40 is connected to the outer wall of the dust extraction housing 10, and the dust extraction pipe assembly 40 is in communication with the gap L, and the dust extraction pipe assembly 40 is used to remove welding slag that enters the gap L.

[0034] In the embodiment of the present application, since the dust hood 10 is a hollow hood with openings at both ends, the first end of the dust hood 10 has a first opening 101, and the second end of the dust hood 10 has a second opening 102. Therefore, it is equivalent to that the dust hood 10 has a accommodating cavity, so that the dust sleeve 20 can be placed in the accommodating cavity, that is, the dust sleeve 20 is placed in the dust hood 10, and the first sub-opening 201 of the dust sleeve 20 is located on the same side as the first opening 101 of the dust hood 10, and the second sub-opening 202 of the dust sleeve 20 is located on the same side as the second opening 102 of the dust hood 10, so that there will be a gap L between the dust sleeve 20 and the inner wall of the dust hood 10. Since the sealing member 30 is arranged between the dust extraction sleeve 20 and the dust extraction shell 10, and the sealing member 30 blocks the gap L between the first opening 101 and the first sub-opening 201 along the circumferential direction of the dust extraction sleeve 20, in actual application, the welding nozzle 200 used for welding the battery module 001 can be located within the range of the second sub-opening 202, so that the welding slag generated during the welding process can pass through the gap L between the second opening 102 and the second sub-opening 202, ensuring that during the welding process of the battery module 001, the welding slag can move in the direction away from the battery module 001 with the battery module 001 as the center, and the welding slag enters the gap L between the second opening 102 and the second sub-opening 202. Since the dust extraction tube assembly 40 is connected to the outer wall of the dust extraction hood 10 and is connected to the gap L, during the welding process of the battery module 001, suction can be performed through the dust extraction tube assembly 40, so that the welding slag can quickly pass through the gap L between the second opening 102 and the second sub-opening 202 into the gap L between the dust extraction hood 10 and the dust extraction sleeve 20, so that the sealing member 30 can prevent the welding slag from moving to the outside of the dust extraction hood 10, ensuring that the welding slag moves to the dust extraction tube assembly 40, avoiding the accumulation of welding slag around the battery module 001, resulting in the problem of affecting the welding of the battery module 001. That is, in the embodiment of the present application, by providing the dust extraction hood 10 and the dust extraction sleeve 20, a gap L is provided between the dust extraction hood 10 and the dust extraction sleeve 20, and the sealing member 30 blocks the gap L between the first opening 101 and the first sub-opening 201 along the circumferential direction of the dust extraction sleeve 20, and the dust extraction tube assembly 40 is connected to the gap L, thereby ensuring that when welding the battery module 001, the welding slag or dust generated by the welding can quickly enter the gap L between the dust extraction hood 10 and the dust extraction sleeve 20 through the gap L between the second opening 102 and the second sub-opening 202, thereby avoiding the accumulation of welding slag or dust around the battery module 001, resulting in the problem of affecting the welding of the battery module 001.

[0035] It should be noted that in the embodiment of the present application, the material of the dust hood 10, the material of the dust sleeve 20 and the material of the sealing part 30 can all be metal materials, so that after the welding slag enters the gap L between the dust sleeve 20 and the dust hood 10, the welding slag has little impact on the dust hood 10, the dust sleeve 20 and the sealing part 30, and the service life of the dust hood for battery welding can be improved.

[0036] In addition, in some embodiments, the dust extraction cover 10, the dust extraction sleeve 20 and the blocking member 30 are integrally formed. By such an arrangement, the strength of the battery-welded dust extraction cover can be improved, and the service life of the battery-welded dust extraction cover can be further improved.

[0037] It should be noted that the dust extraction housing 10, the dust extraction bushing 20 and the blocking member 30 can be provided as an integrally formed structure by an integral molding process. For example, the dust extraction housing 10, the dust extraction bushing 20 and the blocking member 30 can be directly die-casted into an integrally formed structure by a die-casting process.

[0038] Of course, in the embodiment of the present application, the blocking member 30 can also be welded to the dust extraction housing 10 and the dust extraction sleeve 20 respectively. In this regard, the embodiment of the present application does not limit this.

[0039] In addition, in some embodiments, at the first opening 101, the blocking member 30 is connected to the dust hood 10 and the dust liner 20, respectively, and is disposed around the first sub-opening 201 of the dust liner 20, so that the blocking member 30 blocks the gap L between the first opening 101 and the first sub-opening 201. This arrangement ensures that the blocking member 30 effectively blocks the gap L between the first sub-opening 201 and the first opening 101 along the circumferential direction of the dust liner 20, thereby preventing welding slag from leaking from the gap L between the first sub-opening 201 and the first opening 101 after entering the gap L between the dust liner 20 and the dust hood 10. This ensures that welding slag or dust that enters the gap L between the dust hood 10 and the dust liner 20 enters the dust duct assembly 40.

[0040] In addition, in some embodiments, the dust extraction tube assembly 40 may include multiple dust extraction tube bodies 41; multiple through holes 11 are provided on the outer wall of the dust extraction cover 10, and the multiple through holes 11 are spaced apart along the circumferential direction of the dust extraction cover 10, and one end of a dust extraction tube body 41 is connected to a through hole 11.

[0041] Since one end of a dust extraction tube body 41 is connected to a through hole 11, in actual application, once welding slag or dust from the battery module 001 enters the gap L between the second opening 102 and the second sub-opening 202, and then enters the gap L between the dust extraction bushing 20 and the dust extraction cover 10, the welding slag or dust will move to each through hole 11 and enter the dust extraction tube body 41 connected to the through hole 11, and then the welding slag or dust will be sucked away from around the battery module 001 through the dust extraction tube body 41. That is, by providing the through hole 11 on the dust extraction cover 10, it is convenient to connect the dust extraction tube body 41 to the dust extraction cover 10, and thus it is convenient to absorb the welding slag or dust that has entered the gap L between the second opening 102 and the second sub-opening 202 into the dust extraction tube body 41.

[0042] It should be noted that the number of the dust extraction tube bodies 41 is equal to the number of the through holes 11. The number of through holes 11 can be set according to actual needs, for example, the number of through holes 11 is 3, and for another example, the number of through holes 11 is 5. This embodiment of the present application does not limit this.

[0043] In addition, in some embodiments, the distances between any two adjacent through holes 11 are equal in the circumferential direction of the dust extraction housing 10. This arrangement is equivalent to equidistantly disposing the through holes 11 on the dust extraction housing 10, and distributing the plurality of dust extraction tubes 41 on the dust extraction housing 10 at equal intervals. Thus, once welding slag or dust enters the gap L between the dust extraction housing 10 and the dust extraction bushing 20, the plurality of dust extraction tubes 41 can more evenly absorb the welding slag or dust, thus preventing the welding slag or dust from accumulating in one dust extraction tube 41 and causing the welding slag or dust to clog the dust extraction tube 41.

[0044] In addition, in some embodiments, the central axis of the through hole 11 is inclined relative to the central axis of the dust extraction housing 10 in a direction toward the second opening 102. This arrangement is equivalent to making the dust extraction tube body 41 face downward, which can facilitate the entry of welding slag or dust into the dust extraction housing 10 and the dust extraction tube body 41 into the dust extraction tube body 41.

[0045] In addition, in some embodiments, the cross-sectional area of the gap L gradually decreases along the direction from the first opening 101 to the second opening 102. With this arrangement, once welding slag or dust from welding the battery module 001 enters the gap L between the second opening 102 and the second sub-opening 202, the cross-sectional area of the gap L gradually increases as the welding slag or dust moves through the gap L, ensuring that the space available for the welding slag or dust to move is increased, thereby facilitating the movement of the welding slag or dust to the dust extraction tube body 41 and then into the dust extraction tube body 41.

[0046] In addition, in some embodiments, the gap L between the dust extraction housing 10 and the dust extraction sleeve 20 has a size M, satisfying: M ≤ 100 mm. This configuration can avoid the problem that the gap L between the dust extraction housing 10 and the dust extraction sleeve 20 is too large, resulting in the dust extraction hood of the battery welding being too large and not conducive to practical application.

[0047] It should be noted that in the embodiments of the present application, the following condition can be satisfied: 5 mm ≤ M ≤ 100 mm. That is, M can be any value between 5 mm and 100 mm, for example, M is 5 mm, another example, M is 15 mm, another example, M is 30 mm, another example, M is 80 mm, and another example, M is 100 mm. This embodiment of the present application does not limit this.

[0048] In addition, in some embodiments, the dust extraction housing 10 and the dust extraction sleeve 20 are both truncated cone-shaped, and the diameter of the first opening 101 is smaller than the diameter of the second opening 102, and the diameter of the first sub-opening 201 is smaller than the diameter of the second sub-opening 202. With this arrangement, when welding the battery module 001, the battery module 001 can be placed at a position corresponding to the centerline of the second opening 102, so that the gap L between the battery module 001 and the second opening 102 and the second sub-opening 202 is equal, ensuring that welding slag or dust generated when welding the battery module 001 can effectively enter the gap L between the second opening 102 and the second sub-opening 202.

[0049] It should be noted that in the embodiment of the present application, the shape of the dust extraction housing 10 can also be other shapes, for example, the shape of the dust extraction housing 10 is a prism. This embodiment of the present application is not limited to this. The shape of the dust extraction sleeve 20 is the same as that of the dust extraction housing 10.

[0050] In addition, in some embodiments, the diameter of the second opening 102 is N, satisfying: N ≤ 350 mm. This configuration can prevent the second opening 102 from being too large, thereby ensuring that in actual applications, once the welding nozzle 200 is placed within the range of the second opening 102, welding slag or dust generated by welding the battery module 001 can smoothly enter the gap L between the second opening 102 and the second sub-opening 202.

[0051] It should be noted that in the embodiments of the present application, the following condition can be satisfied: 50 mm ≤ N ≤ 350 mm. That is, N can be any value between 50 mm and 350 mm. For example, N is 350 mm, another example, N is 300 mm, another example, N is 280 mm, and another example, N is 50 mm. This embodiment of the present application does not limit this.

[0052] In the embodiment of the present application, since the dust hood 10 is a hollow hood with openings at both ends, the first end of the dust hood 10 has a first opening 101, and the second end of the dust hood 10 has a second opening 102. Therefore, it is equivalent to that the dust hood 10 has a accommodating cavity, so that the dust sleeve 20 can be placed in the accommodating cavity, that is, the dust sleeve 20 is placed in the dust hood 10, and the first sub-opening 201 of the dust sleeve 20 is located on the same side as the first opening 101 of the dust hood 10, and the second sub-opening 202 of the dust sleeve 20 is located on the same side as the second opening 102 of the dust hood 10, so that there will be a gap L between the dust sleeve 20 and the inner wall of the dust hood 10. Since the sealing member 30 is arranged between the dust extraction sleeve 20 and the dust extraction shell 10, and the sealing member 30 blocks the gap L between the first opening 101 and the first sub-opening 201 along the circumferential direction of the dust extraction sleeve 20, in actual application, the welding nozzle 200 used for welding the battery module 001 can be located within the range of the second sub-opening 202, so that the welding slag generated during the welding process can pass through the gap L between the second opening 102 and the second sub-opening 202, ensuring that during the welding process of the battery module 001, the welding slag can move in the direction away from the battery module 001 with the battery module 001 as the center, and the welding slag enters the gap L between the second opening 102 and the second sub-opening 202. Since the dust extraction tube assembly 40 is connected to the outer wall of the dust extraction hood 10 and is connected to the gap L, during the welding process of the battery module 001, suction can be performed through the dust extraction tube assembly 40, so that the welding slag can quickly pass through the gap L between the second opening 102 and the second sub-opening 202 into the gap L between the dust extraction hood 10 and the dust extraction sleeve 20, so that the sealing member 30 can prevent the welding slag from moving to the outside of the dust extraction hood 10, ensuring that the welding slag moves to the dust extraction tube assembly 40, avoiding the accumulation of welding slag around the battery module 001, resulting in the problem of affecting the welding of the battery module 001. That is, in the embodiment of the present application, by providing the dust extraction hood 10 and the dust extraction sleeve 20, a gap L is provided between the dust extraction hood 10 and the dust extraction sleeve 20, and the sealing member 30 blocks the gap L between the first opening 101 and the first sub-opening 201 along the circumferential direction of the dust extraction sleeve 20, and the dust extraction tube assembly 40 is connected to the gap L, thereby ensuring that when welding the battery module 001, the welding slag or dust generated by the welding can quickly enter the gap L between the dust extraction hood 10 and the dust extraction sleeve 20 through the gap L between the second opening 102 and the second sub-opening 202, thereby avoiding the accumulation of welding slag or dust around the battery module 001, resulting in the problem of affecting the welding of the battery module 001.

[0053] The embodiment of the present application provides a battery welding device, such as Figure 6 and Figure 7As shown, the battery welding device includes a positioning platform 100, a welding nozzle 200, an air knife assembly 300, a laser welding galvanometer lens 400 and a dust hood for battery welding in any of the above embodiments; the welding nozzle 200 is arranged above the positioning platform 100, the positioning platform 100 is used to fix the battery module 001, the second opening 102 faces the welding nozzle 200, and the projection of the welding nozzle 200 in the direction from the welding nozzle 200 to the positioning platform 100 is located within the projection of the second opening 102 in the direction from the welding nozzle 200 to the positioning platform 100, the laser welding galvanometer lens 400 is located on one side of the first opening 101, and the air knife assembly 300 is located between the first opening 101 and the laser welding galvanometer lens 400.

[0054] When welding the battery module 001, the battery module 001 can be fixed to the positioning platform 100, and the dust collection device can be connected to the dust collection tube assembly 40. The dust collection device generates suction, thereby ensuring that there is suction in the gap L between the dust collection housing 10 and the dust collection sleeve 20. The positioned battery module 001 can then be welded using the welding nozzle 200. Before welding, the air knife assembly 300 can be turned on to ensure that the welding slag or dust generated during the welding process does not affect the laser welding galvanometer lens 400, and the welding slag or dust can enter the gap L between the dust collection housing 10 and the dust collection sleeve 20, and then enter the dust collection device, thereby preventing the accumulation of welding slag or dust around the battery module 001, which would affect the welding of the battery module 001.

[0055] An embodiment of the present application provides a battery production system, which includes the battery welding device in the above embodiment.

[0056] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0057] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A battery welding dust extraction hood, characterized in that: The battery welding dust extraction hood comprises: A dust extraction hood (10), the dust extraction hood (10) being a hollow hood with openings at both ends, the first end of the dust extraction hood (10) having a first opening (101), and the second end of the dust extraction hood (10) having a second opening (102); A dust extraction sleeve (20), the dust extraction sleeve (20) being a hollow sleeve with openings at both ends, the first end of the dust extraction sleeve (20) having a first sub-opening (201), the second end of the dust extraction sleeve (20) having a second sub-opening (202), the dust extraction sleeve (20) being arranged in the dust extraction housing (10), the first opening (101) and the first sub-opening (201) being located on the same side, the second opening (102) and the second sub-opening (202) being located on the same side, and a gap (L) being provided between the dust extraction sleeve (20) and the inner wall of the dust extraction housing (10); a blocking piece (30), the blocking piece (30) being arranged between the dust extraction bushing (20) and the dust extraction housing (10), and the blocking piece (30) blocking the gap (L) between the first opening (101) and the first sub-opening (201) along the circumferential direction of the dust extraction bushing (20), and the gap (L) between the second opening (102) and the second sub-opening (202) being used to allow welding slag to enter the gap (L); A dust extraction pipe assembly (40) is connected to the outer wall of the dust extraction cover (10), and the dust extraction pipe assembly (40) is communicated with the gap (L). The dust extraction pipe assembly (40) is used to remove welding slag entering the gap (L).

2. The battery welding dust extraction hood according to claim 1, characterized in that: At the first opening (101), the blocking member (30) is respectively connected to the dust extraction hood (10) and the dust extraction sleeve (20), and the blocking member (30) is arranged around the first sub-opening (201) of the dust extraction sleeve (20) so that the blocking member (30) blocks the gap (L) between the first opening (101) and the first sub-opening (201).

3. The battery welding dust extraction hood according to claim 1, characterized in that: The dust extraction pipe assembly (40) includes a plurality of dust extraction pipe bodies (41); A plurality of through holes (11) are provided on the outer wall of the dust extraction housing (10), and the plurality of through holes (11) are spaced apart along the circumferential direction of the dust extraction housing (10), and one end of a dust extraction tube body (41) is connected to one of the through holes (11).

4. The battery welding dust extraction hood according to claim 3, characterized in that: In the circumferential direction of the dust extraction housing (10), the distance between any two adjacent through holes (11) is equal.

5. The battery welding dust extraction hood according to claim 3, characterized in that: The central axis of the through hole (11) is inclined relative to the central axis of the dust extraction housing (10) in a direction toward the second opening (102).

6. The battery welding dust extraction hood according to claim 1, characterized in that: Along the direction from the first opening (101) to the second opening (102), the cross-sectional area of the gap (L) gradually decreases.

7. The battery welding dust extraction hood according to claim 1, characterized in that: The shapes of the dust extraction housing (10) and the dust extraction sleeve (20) are both truncated cone-shaped, and the diameter of the first opening (101) is smaller than the diameter of the second opening (102), and the diameter of the first sub-opening (201) is smaller than the diameter of the second sub-opening (202).

8. The battery welding dust extraction hood according to claim 1, characterized in that: The dust extraction housing (10), the dust extraction bushing (20) and the blocking member (30) are an integrally formed structure.

9. A battery welding device, characterized in that: The battery welding device comprises a positioning table (100), a welding nozzle (200), an air knife assembly (300), a laser welding galvanometer lens (400), and a battery welding dust extraction hood according to any one of claims 1 to 8; The welding nozzle (200) is arranged above the positioning platform (100), and the positioning platform (100) is used to fix the battery module (001). The second opening (102) faces the welding nozzle (200), and the projection of the welding nozzle (200) in the direction from the welding nozzle (200) to the positioning platform (100) is located within the projection of the second opening (102) in the direction from the welding nozzle (200) to the positioning platform (100). The laser welding galvanometer lens (400) is located on one side of the first opening (101), and the air knife assembly (300) is located between the first opening (101) and the laser welding galvanometer lens (400).

10. A battery production system, characterized in that: The battery production system includes the battery welding device described in claim 9.

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