Blowing assembly and welding device

Abstract

The utility model discloses a blowing assembly and welding device, including: blowing piece, the blowing piece is provided with a plurality of blowing port, a plurality of air inlet and annular cavity, wherein the air inlet is communicated with the side wall of annular cavity, the air inlet is used for introducing protective gas, the air inlet direction of the air inlet is the tangential direction of annular cavity, and the annular cavity is provided with a plurality of blowing port, a plurality of blowing port, a plurality of blowing port, a plurality of blowing port and a plurality of annular cavity. The annular cavity is provided with a plurality of air inlets, the air inlets are arranged in a staggered mode, the protective gas can enter the annular cavity from the air inlets and enter the annular cavity in the tangential direction of the annular cavity, the air blowing openings are communicated with the bottom wall of the annular cavity, and the air blowing openings are used for discharging the protective gas in the annular cavity. The blowing assembly can effectively protect a welding area from being oxidized.

Description

Technical Field

[0001] The utility model relates to the technical field of laser welding, in particular to an air blowing component and a welding device. Background Art

[0002] In the related art, when welding batteries, the welding device needs to blow a shielding gas at the welding position to prevent the weld from being exposed to the air. When welding batteries, such as cylindrical batteries, the existing welding device usually introduces shielding gas into the air intake block, and then sets the air intake block above the battery to blow shielding gas to the weld. After the shielding gas is introduced into the air intake block, the air flow at the air inlet of the air intake block is large, while the air flow at other positions is small, so the shielding gas cannot effectively protect the welding area from oxidation. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an air blowing assembly that can effectively protect the welding area from being oxidized.

[0004] The utility model also provides a welding device.

[0005] According to the first aspect of the present invention, the blowing assembly includes:

[0006] A blowing piece, wherein the blowing piece is provided with a plurality of blowing ports, a plurality of air inlets and an annular cavity, wherein the air inlet is communicated with the side wall of the annular cavity, the air inlet is used to introduce protective gas, the air inlet direction of the air inlet is the tangential direction of the annular cavity, each of the air inlets is staggered, the protective gas can enter from the air inlet, and enter the annular cavity along the tangential direction of the annular cavity, the blowing port is communicated with the bottom wall of the annular cavity, and the blowing port is used to discharge the protective gas in the annular cavity.

[0007] The blowing assembly according to the embodiment of the utility model has at least the following beneficial effects: the air inlet direction of the air inlet is set to the tangent direction of the annular cavity, and after the air inlets are staggered, the shielding gas can enter the annular cavity through the air inlet along the tangent direction of the annular cavity, so that the shielding gas can enter the annular cavity in an orderly manner, and the shielding gases at the various air inlets will not disturb each other, so the shielding gas can enter the annular cavity evenly, thereby evenly filling the annular cavity, and further, the evenly flowing shielding gas can be evenly discharged through multiple blowing ports, and because the blowing member can make the shielding gas blow evenly at the weld position, the shielding gas can effectively protect the welding area from oxidation. Specifically, the blowing assembly can effectively protect the welding area from oxidation.

[0008] According to some embodiments of the blowing assembly of the utility model, the blowing part includes a first block and a second block, the first block is provided with the air inlet and the annular cavity, the second block is provided with the blowing port and multiple exhaust cavities, each of the exhaust cavities is connected to one of the blowing ports, the first block is connected to the second block, and the multiple exhaust cavities are all connected to the annular cavity.

[0009] According to some embodiments of the blowing assembly of the present invention, the blowing assembly also includes a suction piece, which is used for sucking air, and is connected to a side of the first block facing away from the second block, the first block is provided with a first suction hole, the second block is provided with a second suction hole, and the first suction hole is connected to the second suction hole.

[0010] According to the blowing assembly of some embodiments of the present utility model, the first block is threadedly connected to the second block.

[0011] According to the blowing assembly of some embodiments of the utility model, the second block is also provided with a third air suction hole, and the third air suction hole is located on the side of the second block away from the first block, the blowing port and the second air suction hole are both connected to the third air suction hole, and the third air suction hole gradually converges from the second block to the first block.

[0012] According to the blowing assembly of some embodiments of the utility model, the suction member further comprises a dust removal hood, the dust removal hood is connected to the first block, the dust removal hood has a dust removal cavity, and the dust removal cavity is connected to the first suction hole.

[0013] According to the blowing assembly of some embodiments of the present invention, the annular cavity and the first air suction hole are separated from each other, and the annular cavity surrounds the periphery of the first air suction hole.

[0014] According to some embodiments of the blowing assembly of the present utility model, the blowing assembly also includes an air connecting head, the air connecting head is connected to the air inlet, the extension direction of the air connecting head is the tangent direction of the annular cavity, and the air connecting head is used to connect with the blowing device.

[0015] According to the air blowing assembly of some embodiments of the utility model, six air inlets are provided, and the six air inlets are arranged along the central circumference of the annular cavity.

[0016] The welding device according to the second embodiment of the utility model comprises the blowing assembly described in any one of the first embodiment.

[0017] According to the welding device of the embodiment of the utility model, at least the following beneficial effects are achieved: the air inlet direction of the air inlet is set to the tangent direction of the annular cavity, and after the air inlets are staggered, the shielding gas can enter the annular cavity through the air inlet along the tangent direction of the annular cavity, so that the shielding gas can enter the annular cavity in an orderly manner, and the shielding gases at the various air inlets will not disturb each other, so the shielding gas can enter the annular cavity evenly, thereby evenly filling the annular cavity, and further, the evenly flowing shielding gas can be evenly discharged through multiple blowing ports, and since the blowing member can make the shielding gas blow evenly at the weld position, the shielding gas can effectively protect the welding area from oxidation. Specifically, the blowing assembly can effectively protect the welding area from oxidation. Furthermore, the welding effect of the welding device with the blowing assembly is better.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 Schematic diagram of the blowing assembly of some embodiments of the utility model;

[0021] Figure 2 It is a cross-sectional schematic diagram of a blowing member in a blowing assembly of some embodiments of the utility model;

[0022] Figure 3 Schematic diagram of a blowing member in a blowing assembly according to some embodiments of the utility model.

[0023] Reference numerals:

[0024] Blowing assembly 10, blowing piece 100, air inlet 110, annular cavity 120, first block 200, first air suction hole 210, second block 300, exhaust cavity 310, blowing port 320, second air suction hole 330, third air suction hole 340, air connecting head 400, dust removal cover 500, dust removal cavity 510. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] In the description of the utility model, the description with reference to the terms "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 utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] In the related art, when welding a battery, the welding device needs to blow a shielding gas at the welding position to prevent the weld from being exposed to the air. When welding batteries, such as cylindrical batteries, the existing welding device usually introduces shielding gas into the air intake block, and then sets the air intake block above the battery to blow shielding gas to the weld. After the shielding gas is introduced into the air intake block, since the air inlet 110 directly faces the cavity wall of the annular cavity 120, the shielding gas will directly impact the cavity wall of the annular cavity 120 after entering, resulting in a large gas flow at the air inlet 110 and a small gas flow at other positions. Since the shielding gas does not enter the annular cavity 120 evenly, the shielding gas cannot be evenly discharged to the welding area, which further causes the shielding gas to be unable to effectively protect the welding area from oxidation. To this end, the present application proposes a blowing assembly 10.

[0031] Please refer to Figures 1 to 3,in Figure 3 The arrow in the middle indicates the flow direction of the shielding gas. In some embodiments, the blowing assembly 10 includes: a blowing member 100. The blowing member 100 can be connected to a blower or an air pump, and the shielding gas can be blown into the blowing member 100 through the air pump. The blowing member 100 is provided with a plurality of blowing ports 320, a plurality of air inlets 110 and an annular cavity 120. Among them, the plurality of blowing ports 320 can allow the shielding gas to quickly enter the annular cavity 120, and the plurality of air inlets 110 can allow the shielding gas to be discharged evenly, so as to be blown in the welding area. The shielding gas can be an inert gas. Further, the air inlet 110 is connected to the side wall of the annular cavity 120, and the air inlet 110 is used to pass the shielding gas, and the air inlet direction of the air inlet 110 is the tangential direction of the annular cavity 120, and each air inlet 110 is staggered, and the shielding gas can enter from the air inlet 110 and enter the annular cavity 120 along the tangential direction of the annular cavity 120. The air inlet direction of the air inlet 110 is the tangent direction of the annular cavity 120. Specifically, the shape of the annular cavity 120 is annular, and the annular annular cavity 120 includes an inner cavity wall and an outer cavity wall, wherein the air inlet 110 is arranged on the outer cavity wall, and the air inlet 110 and the inner cavity wall are not arranged opposite to each other. In this way, when the protective gas enters from the air inlet 110, the protective gas will not directly impact the inner cavity wall, which can effectively reduce the turbulence generated by the protective gas. The specific flow path of the protective gas can be referred to Figure 3 In addition, the staggered arrangement of the multiple air inlets 110 allows the protective gas to enter the annular cavity 120 in a clockwise or counterclockwise direction, which can effectively ensure that the protective gas enters the annular cavity 120 in an orderly manner, so that each corner of the annular cavity 120 is evenly filled with the protective gas. The air inlet 320 is connected to the bottom wall of the annular cavity 120, and the air inlet 320 is used to discharge the protective gas in the annular cavity 120. Specifically, the air inlet direction of the air inlet 110 is set to the tangential direction of the annular cavity 120, and after the air inlets 110 are staggered, the shielding gas can enter the annular cavity 120 along the tangential direction of the annular cavity 120 through the air inlet 110, so that the shielding gas can enter the annular cavity 120 in an orderly manner, and the shielding gases at each air inlet 110 will not disturb each other, so the shielding gas can enter the annular cavity 120 evenly, thereby evenly filling the annular cavity 120, and further, the evenly flowing shielding gas can be evenly discharged through multiple blowing ports 320, and since the blowing component 100 can make the shielding gas blow evenly at the weld position, the shielding gas can effectively protect the welding area from oxidation. Specifically, the blowing assembly 10 can effectively protect the welding area from oxidation.

[0032] It should be added that the blowing member 100 of the present application can not only make the protective gas enter the annular cavity 120 evenly, but also make the protective gas reach the weld area of ​​the battery evenly due to the arrangement of the multiple blowing ports 320, thereby protecting the weld from oxidation. In addition, the multiple blowing ports 320 and the multiple air inlets 110 can be arranged along the central circumference of the annular cavity 120.

[0033] The specific structure of the blowing member 100 is described below. Figure 1 and Figure 2 In some embodiments, the blowing member 100 includes a first block 200 and a second block 300. The first block 200 is provided with an air inlet 110 and an annular cavity 120, and the second block 300 is provided with an air inlet 320 and a plurality of exhaust cavities 310, each exhaust cavity 310 is communicated with an air inlet 320, the first block 200 is connected to the second block 300, and the plurality of exhaust cavities 310 are all communicated with the annular cavity 120. After the first block 200 and the second block 300 are connected, the plurality of exhaust cavities 310 are communicated with the annular cavity 120. The protective gas enters the annular cavity 120 from the air inlet 110, and then the protective gas enters the exhaust cavity 310 from the annular cavity 120. The exhaust cavity 310 may be in the shape of a pipe, and the protective gas enters the exhaust cavity 310 from the annular cavity 120, and is finally discharged from the air inlet 320. The length of each exhaust cavity 310 is the same, so the flow rate of the shielding gas in each exhaust cavity 310 is the same, so that the shielding gas can finally be discharged to the welding area evenly and at a constant speed.

[0034] Furthermore, the above introduction introduces that blowing protective gas through the blowing component 100 can effectively prevent the problem of oxidation in the welding area. In addition to effectively preventing the problem of oxidation in the welding area, the blowing component 10 can also remove the dust generated by welding, thereby effectively avoiding the reaction between the dust and the weld, which will lead to poor welding effect. Therefore, please refer to Figure 1 and Figure 2 In some embodiments, the blowing assembly 10 further includes an air suction member, which is used for air suction. The air suction member may be an air pump or an air extractor, and the air pump may suck air, thereby sucking away dust. The air suction member is connected to the side of the first block 200 away from the second block 300, the first block 200 is provided with a first air suction hole 210, and the second block 300 is provided with a second air suction hole 330, and the first air suction hole 210 is connected to the second air suction hole 330. The second air suction hole 330 may be located above the battery, so that when the air suction member starts to work, the air suction member sucks air, and then the dust and air enter the first air suction hole 210 from the second air suction hole 330 and are finally sucked away by the air suction member. Specifically, the blowing assembly 10 may blow out a protective gas through the blowing port 320 to protect the welding area, and the blowing assembly 10 may use the air suction member to remove dust from the second air suction hole 330 to improve the welding quality.

[0035] Further, in some embodiments, the first block 200 is threadedly connected to the second block 300. Specifically, the first block 200 is provided with a threaded hole, and the second block 300 is provided with a threaded hole. The first block 200 and the second block 300 can be connected by passing a bolt through the two threaded holes and then connecting with a nut. Among them, the threaded connection method is convenient for the staff to install and disassemble the first block 200 and the second block 300.

[0036] For further information, please refer to Figure 1 and Figure 2 In some embodiments, the second block 300 is further provided with a third air suction hole 340, and the third air suction hole 340 is located on the side of the second block 300 away from the first block 200, and the air blowing port 320 and the second air suction hole 330 are both connected to the third air suction hole 340, and the third air suction hole 340 gradually closes from the second block 300 to the first block 200. After the third air suction hole 340 gradually closes, the third air suction hole 340 can be trumpet-shaped, and the trumpet-shaped closing design can facilitate the suction component to absorb dust. In addition, since the air blowing port 320 is connected to the third air suction hole 340, multiple air blowing ports 320 can be set on the hole wall of the third air suction hole 340, which can make the blown shielding gas more concentrated, so that the shielding gas is concentrated in the welding area, effectively preventing oxidation in the welding area. After the second block 300 is provided with the second suction hole 330 and the third suction hole 340 , the cross-sectional shape of the second suction hole 330 may be a square, and the cross-sectional shape of the third suction hole 340 may be a trapezoid.

[0037] Further, it is mentioned above that dust can be sucked by the suction piece, wherein when the suction piece sucks dust, the suction piece includes an air pump and a dust hood 500, the air pump and the dust hood 500 are connected, and the dust hood 500 can be connected to the first block 200, thereby indirectly connecting the air pump and the first block 200. Specifically, in some embodiments, the suction piece also includes a dust hood 500, the dust hood 500 is connected to the first block 200, the dust hood 500 has a dust removal chamber 510, and the dust removal chamber 510 is connected to the first suction hole 210. Among them, the dust removal chamber 510 can have two openings, and the suction piece includes two air pumps, each of which is connected to an opening. In this way, after the two openings are connected by the two air pumps, the dust generated during welding can be sucked away by starting the air pump. In addition, the first block 200 can be fixedly connected to the dust hood 500, so that the staff only needs to fix the dust hood 500, and there is no need to fix the blowing piece 100.

[0038] Furthermore, in order to save the cost of the first block 200, the first air intake hole 210 may be provided at the center of the first block 200, and the annular cavity 120 may be provided at the periphery of the first air intake hole 210. Figure 1 and Figure 2 In some embodiments, the annular cavity 120 is separated from the first air intake hole 210, and the annular cavity 120 surrounds the periphery of the first air intake hole 210. It is conceivable that the diameter of the first air intake hole 210 is larger than the diameter of the battery, so that after the first air intake hole 210 is located above the battery, it can have a larger coverage area, thereby extracting the dust generated by welding. In addition, after the first air intake hole 210 is arranged at the center of the first block 200, the blowing port 320 can be arranged on the hole wall of the first air intake hole 210, so that multiple blowing ports 320 can be arranged circumferentially around the center of the first air intake hole 210, so as to achieve the effect of evenly blowing out the protective gas.

[0039] For further information, please refer to Figure 1 and Figure 2 In some embodiments, the blowing assembly 10 further includes an air connection head 400, which is connected to the air inlet 110, and the extension direction of the air connection head 400 is the tangent direction of the annular cavity 120, and the air connection head 400 is used to be connected to the blowing device. Specifically, on the one hand, the setting of the air connection head 400 can facilitate the connection between the blowing device and the blowing member 100, such as one end of the air connection head 400 is connected to the blowing member 100, and the other end of the air connection head 400 is connected to the blowing device. The air connection head 400 can be connected to the first block 200, and the blowing device can be a fan or an air pump. In addition, the air pump can also be connected to the air connection head 400 through an air pipe, and the air pipe is set on the air connection head 400, which can facilitate the assembly of the staff. On the other hand, the length direction of the gas connecting head 400 is the tangent direction of the annular cavity 120 , so that when the protective gas enters the annular cavity 120 from the gas connecting head 400 , the gas connecting head 400 has a guiding effect on the protective gas, thereby guiding the protective gas to enter the annular cavity 120 along the tangent direction of the annular cavity 120 .

[0040] For further information, please refer to Figure 1 and Figure 2 In some embodiments, six air inlets 110 are provided, and the six air inlets 110 are arranged along the central circumference of the annular cavity 120. Specifically, the provision of the six air inlets 110 allows the shielding gas to quickly enter the annular cavity 120, so that the shielding gas fills the annular cavity 120. In addition, the provision of the six air inlets 110 allows the shielding gas to have six air inlet channels, and the six air inlet channels are closer to a circle, so that the shielding gas can avoid turbulence after entering the annular cavity 120. Furthermore, compared with the provision of four air inlets 110, the provision of the six air inlets 110 allows the shielding gas to flow more effectively and evenly along the inner wall of the annular cavity 120, so that the uniformity of the shielding gas is better. Compared with the provision of eight air inlets 110, the cost of the six air inlets 110 is lower than that of the eight air inlets 110.

[0041] In some embodiments, the welding device includes the blowing assembly 10 of any one of the above embodiments. Specifically, the air inlet direction of the air inlet 110 is set to the tangential direction of the annular cavity 120, and after the air inlets 110 are staggered, the shielding gas can enter the annular cavity 120 along the tangential direction of the annular cavity 120 through the air inlet 110, so that the shielding gas can enter the annular cavity 120 in an orderly manner, and the shielding gases at each air inlet 110 will not disturb each other, so the shielding gas can enter the annular cavity 120 evenly, so as to evenly fill the annular cavity 120, and further, the uniformly flowing shielding gas can be evenly discharged through multiple blowing ports 320, and since the blowing member 100 can make the shielding gas blow evenly at the weld position, the shielding gas can effectively protect the welding area from oxidation. Specifically, the blowing assembly 10 can effectively protect the welding area from oxidation. Further, the welding effect of the welding device with the blowing assembly 10 is better.

[0042] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. Blowing assembly, characterized in that, include: A blowing piece, wherein the blowing piece is provided with a plurality of blowing ports, a plurality of air inlets and an annular cavity, wherein the air inlet is communicated with the side wall of the annular cavity, the air inlet is used to introduce protective gas, the air inlet direction of the air inlet is the tangential direction of the annular cavity, each of the air inlets is staggered, the protective gas can enter from the air inlet, and enter the annular cavity along the tangential direction of the annular cavity, the blowing port is communicated with the bottom wall of the annular cavity, and the blowing port is used to discharge the protective gas in the annular cavity.

2. The blowing assembly according to claim 1, characterized in that: The blowing component includes a first block and a second block, the first block is provided with the air inlet and the annular cavity, the second block is provided with the air outlet and a plurality of exhaust cavities, each of the exhaust cavities is communicated with one of the air outlets, the first block is connected to the second block, and the plurality of exhaust cavities are all communicated with the annular cavity.

3. The blowing assembly according to claim 2, characterized in that: The blowing assembly also includes a suction piece, which is used for suctioning air. The suction piece is connected to the side of the first block facing away from the second block. The first block is provided with a first suction hole, and the second block is provided with a second suction hole. The first suction hole is connected to the second suction hole.

4. The blowing assembly according to claim 2, characterized in that: The first block is threadedly connected to the second block.

5. The blowing assembly according to claim 3, characterized in that: The second block is also provided with a third air suction hole, which is located on the side of the second block away from the first block, and the air outlet and the second air suction hole are both connected to the third air suction hole. From the second block to the first block, the third air suction hole gradually shrinks.

6. The blowing assembly according to claim 3, characterized in that: The air suction member further comprises a dust removal cover, the dust removal cover is connected to the first block, the dust removal cover has a dust removal cavity, and the dust removal cavity is communicated with the first air suction hole.

7. The blowing assembly according to claim 3, characterized in that: The annular cavity and the first air suction hole are separated from each other, and the annular cavity surrounds the periphery of the first air suction hole.

8. The blowing assembly according to claim 1, characterized in that: The air blowing assembly further comprises an air connecting head, which is connected to the air inlet, and the extending direction of the air connecting head is the tangent direction of the annular cavity, and the air connecting head is used to be connected to the air blowing device.

9. The blowing assembly according to claim 1, characterized in that: There are six air inlets, and the six air inlets are arranged along the central circumference of the annular cavity.

10. A welding device, characterized in that The invention comprises the blowing assembly as claimed in any one of claims 1 to 9.

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