Pole piece dust removal device

Abstract

The embodiment of the utility model provides a pole piece dust removal device, and relates to the technical field of battery pole piece dust removal. The pole piece dust removal device comprises a shell, the shell comprises a first dust removal piece and a second dust removal piece which are arranged in a spaced mode in the first direction, and a dust removal opening for pole pieces to penetrate through is formed between the first dust removal piece and the second dust removal piece. A first dust collection part and a first air blowing part which are sequentially arranged in the second direction are arranged on the side, close to the dust removal opening, of the first dust removal piece, and a second dust collection part and a second air blowing part which are sequentially arranged in the second direction are arranged on the side, close to the dust removal opening, of the second dust removal piece. The first blowing part and the second blowing part are opposite and are used for being connected with an air source so as to blow air to the upper and lower surfaces of the pole piece respectively. In this way, firm dust on the surface of the pole piece can be blown up through the first air blowing part and the second air blowing part, so that the dust can be conveniently absorbed by the first dust absorption part and the second dust absorption part, and the dust removal efficiency of the pole piece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery pole piece dust removal technical field, specifically, relate to a pole piece dust removal device. BACKGROUND

[0002] In the production process of battery pole piece, the pole piece needs to be cut, and dust will be generated after the pole piece is cut, the dust refers to the coating particles or substrate debris generated by the pole piece punching, if the dust enters the battery with the pole piece, micro short circuit, even puncture diaphragm, self-discharge and other phenomena will be caused, the production quality of the battery cell is reduced, therefore, the dust on the pole piece needs to be removed by the dust removal device.

[0003] The inventor found that the dust removal efficiency of some existing dust removal devices for pole pieces is low. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pole piece dust removal device which can improve the dust removal efficiency for pole pieces.

[0005] The embodiment of the utility model is implemented as follows:

[0006] In a first aspect, the utility model provides a pole piece dust removal device, which comprises:

[0007] The shell comprises a first dust removal part and a second dust removal part arranged along a first direction, and the first dust removal part and the second dust removal part have a dust removal opening for the pole piece to pass through;

[0008] The first dust removal part is provided with a first dust suction part and a first air blowing part arranged along a second direction on one side close to the dust removal opening, and the second dust removal part is provided with a second dust suction part and a second air blowing part arranged along the second direction on one side close to the dust removal opening;

[0009] The first dust suction part and the second dust suction part are opposite and used for being connected with a negative pressure source to respectively suck the dust on the upper and lower surfaces of the pole piece, the first air blowing part and the second air blowing part are opposite and used for being connected with a gas source to respectively blow air to the upper and lower surfaces of the pole piece, the first direction and the second direction form an angle, and the running direction of the pole piece is parallel to the second direction.

[0010] In an optional embodiment, the first dust suction part comprises a first negative pressure cavity and a first dust suction opening in communication with the first negative pressure cavity, the volume of the first negative pressure cavity is greater than that of the first dust suction opening, and the first negative pressure cavity is used for being connected with the negative pressure source.

[0011] The second dust suction part comprises a second negative pressure cavity and a second dust suction opening in communication with the second negative pressure cavity, the volume of the second negative pressure cavity is greater than that of the second dust suction opening, the first dust suction opening is opposite to the second dust suction opening, and the second negative pressure cavity is used for being connected with the negative pressure source.

[0012] In an optional embodiment, the first suction port and the second suction port together define an outlet of the dust removal port in the first direction away from the first blowing part and the second blowing part, the dust removal port is trapezoidal or triangular, and the shell further comprises a negative pressure chamber in communication with the dust removal port.

[0013] In an optional embodiment, the first blowing part comprises a first blowing channel and a plurality of first blowing holes in communication, the plurality of first blowing holes are arranged in intervals along the width direction of the pole piece, and an end of the first blowing channel away from the first blowing holes is connected to an external air source through a speed regulating valve.

[0014] The second blowing part comprises a second blowing channel and a plurality of second blowing holes in communication, the plurality of second blowing holes are arranged in intervals along the width direction of the pole piece, and an end of the second blowing channel away from the second blowing holes is connected to an external air source through a speed regulating valve.

[0015] In an optional embodiment, the dust removal port has an inlet and an outlet in the second direction, and the pole piece passes through the inlet and exits the dust removal port from the outlet.

[0016] The first blowing part is located on the side of the first suction part close to the inlet, and / or the second blowing part is located on the side of the second suction part close to the inlet.

[0017] In an optional embodiment, the blowing direction of the first blowing part forms an angle with the first direction, and / or the blowing direction of the second blowing part forms an angle with the first direction.

[0018] In an optional embodiment, the blowing direction of the first blowing part is towards the outlet, and the blowing direction of the second blowing part is towards the outlet.

[0019] In an optional embodiment, the angle between the blowing direction of the first blowing part and the direction in which the inlet points to the outlet is within the range of 30-60°, and the angle between the blowing direction of the second blowing part and the direction in which the inlet points to the outlet is within the range of 30-60°.

[0020] In an optional embodiment, the angle between the blowing direction of the first blowing part and the direction in which the inlet points to the outlet is 45°, and / or the angle between the blowing direction of the second blowing part and the direction in which the inlet points to the outlet is 45°.

[0021] In an optional embodiment, the second dust removal part is located below the first dust removal part, the second dust removal part is further provided with a dust receiving groove for receiving the dust falling from the pole piece, and the dust receiving groove is connected to the negative pressure source.

[0022] And / or the shell is made by 3D printing additive manufacturing.

[0023] And / or the shell is made of ductile resin or transparent resin.

[0024] The utility model embodiment's beneficial effect is: the utility model embodiment provides a kind of pole piece dust removal device, including shell, shell includes the first dust removal part and second dust removal part being arranged at interval along first direction, and the dust removal port for pole piece to pass is arranged between the first dust removal part and the second dust removal part.The side of first dust removal part close to dust removal port is provided with the first dust removal part and the first air blowing part being sequentially arranged along second direction, and the side of second dust removal part close to dust removal port is provided with the second dust removal part and the second air blowing part being sequentially arranged along second direction.The first dust removal part and the second dust removal part are opposite and are used to be connected with negative pressure source, to respectively suck the dust of the upper and lower surfaces of pole piece passing dust removal port, and the first air blowing part and the second air blowing part are opposite and are used to be connected with gas source, to respectively blow air to the upper and lower surfaces of pole piece, first direction and second direction are included angle, and the tape direction of pole piece is parallel with second direction.It can be blown up by the first air blowing part and the second air blowing part respectively on the dust firmly on the surface of pole piece, and then it is convenient for the first dust removal part and the second dust removal part to absorb dust, to improve the dust removal efficiency of pole piece. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced to the drawing needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying the creative labor, other related drawings can also be obtained according to these drawings.

[0026] Figure 1 The structure schematic diagram of the pole piece dust removal device provided by the utility model embodiment is shown in the drawing.

[0027] Figure 2 The cross section schematic diagram one of the pole piece dust removal device provided by the utility model embodiment is shown in the drawing.

[0028] Figure 3 The cross section schematic diagram two of the pole piece dust removal device provided by the utility model embodiment is shown in the drawing.

[0029] Figure 4 The cross section schematic diagram three of the pole piece dust removal device provided by the utility model embodiment is shown in the drawing.

[0030] Figure 5 The airflow (or dust) path diagram in the shell provided by the utility model embodiment is shown in the drawing.

[0031] Figure 6 The dust removal port cross section wind speed cloud picture provided by the utility model embodiment is shown in the drawing.

[0032] Icon: 1 - pole piece dust removal device; 100 - shell; 110 - first dust removal part; 111 - first negative pressure cavity; 112 - first dust suction port; 113 - first air blowing hole; 114 - first air blowing channel; 120 - second dust removal part; 121 - second negative pressure cavity; 122 - second dust suction port; 123 - second air blowing hole; 124 - second air blowing channel; 125 - dust receiving groove; 130 - dust removal port; 131 - inlet; 132 - outlet; 140 - negative pressure cavity; 150 - negative pressure pipe; 2 - dust; 3 - pole piece; 4 - cutter. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0035] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0038] In the description of the utility model, it also needs to be explained that, unless there is explicit provision and limitation, the terms "arrange", "install", "connect" and "connect" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection, or it can be integrally connected, it can be mechanical connection, or it can be electrical connection, it can be directly connected, or it can be indirectly connected through intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] It should be noted that, in the embodiment, with Figure 2 As a reference, the first direction can be understood as the height direction, the second direction can be the left-right direction, and the third direction can be the width direction perpendicular to the paper.

[0040] The specific structure of the pole piece dust removal device provided by the utility model embodiment and the corresponding technical effects brought by it will be described in detail below with reference to the accompanying drawings.

[0041] Please refer to Figures 1-4 The pole piece dust removal device 1 provided by the utility model embodiment comprises a shell 100, the shell 100 comprises a first dust removal part 110 and a second dust removal part 120 arranged at intervals along a first direction, and the first dust removal part 110 and the second dust removal part 120 have a dust removal opening 130 for the pole piece 3 to pass through.

[0042] The side of the first dust removal part 110 close to the dust removal opening 130 is provided with a first dust suction part and a first air blowing part arranged in sequence along a second direction, and the side of the second dust removal part 120 close to the dust removal opening 130 is provided with a second dust suction part and a second air blowing part arranged in sequence along the second direction. The first dust suction part and the second dust suction part are opposite and used for being connected with a negative pressure source to respectively suck the dust 2 on the upper and lower surfaces of the pole piece 3 passing through the dust removal opening 130, the first air blowing part and the second air blowing part are opposite and used for being connected with a gas source to respectively blow air to the upper and lower surfaces of the pole piece 3, the first direction and the second direction form an angle, and the walking direction of the pole piece 3 is parallel to the second direction.

[0043] In detail, the first direction is perpendicular to the second direction, and it should be noted that the perpendicular in the embodiment is not limited to the strict sense of perpendicular, but can be approximately perpendicular, and the parallel is not limited to the strict sense of parallel, but can be approximately parallel.

[0044] It can be understood that in some existing dust removal devices, only the dust removal opening with negative pressure is used to remove the dust on the surface of the pole piece 3, and it is difficult to remove the firm dust 2 attached to the surface of the pole piece 3 in time through the dust removal opening.

[0045] In the embodiment, the dust 2 firmly on the surface of the pole piece 3 can be blown up by the first blowing part and the second blowing part respectively, and then the dust 2 can be absorbed by the first dust suction part and the second dust suction part, so as to improve the dust removal efficiency of the pole piece 3.

[0046] In detail, the first dust suction part comprises a first negative pressure cavity 111 and a first dust suction port 112 communicated with the first negative pressure cavity 111, and the volume of the first negative pressure cavity 111 is greater than that of the first dust suction port 112. It can be understood that the first negative pressure cavity 111 is convenient for containing the dust 2 sucked, so as to avoid the first dust removal part 110 from being blocked in the process of sucking the dust 2, and the first negative pressure cavity 111 is used for being connected with a negative pressure source.

[0047] Similarly, the second dust suction part comprises a second negative pressure cavity 121 and a second dust suction port 122 communicated with the second negative pressure cavity 121, and the volume of the second negative pressure cavity 121 is greater than that of the second dust suction port 122. It can be understood that the second negative pressure cavity 121 is convenient for containing the dust 2 sucked, so as to avoid the second dust removal part 120 from being blocked in the process of sucking the dust 2, and the second negative pressure cavity 121 is used for being connected with a negative pressure source.

[0048] Optionally, the first blowing part comprises a first blowing channel 114 and a plurality of first blowing holes 113 communicated with each other, the plurality of first blowing holes 113 are arranged along the width direction of the pole piece 3, and one end of the first blowing channel 114 away from the first blowing holes 113 is communicated with an external air source through a speed regulating valve. It can be understood that when the pole piece 3 passes through the dust removal port 130, the width direction of the pole piece 3 is the third direction mentioned above.

[0049] Since the first blowing part has a plurality of first blowing holes 113 and the plurality of first blowing holes 113 are arranged along the width direction of the pole piece 3, the dust 2 attached to the pole piece 3 can be blown off more efficiently. And one end of the first blowing channel 114 away from the first blowing holes 113 is communicated with an external air source through a speed regulating valve, so that the blowing speed of the first blowing holes 113 can be controlled through the speed regulating valve.

[0050] Optionally, the second blowing part comprises a second blowing channel 124 and a plurality of second blowing holes 123 communicated with each other, the plurality of second blowing holes 123 are arranged along the width direction of the pole piece 3, and two ends of the second blowing channel 124 away from the second blowing holes 123 are communicated with an external air source through a speed regulating valve.

[0051] Since the second blowing part has a plurality of second blowing holes 123 and the plurality of second blowing holes 123 are arranged along the width direction of the pole piece 3, the dust 2 attached to the pole piece 3 can be blown off more efficiently. And one end of the second blowing channel 124 away from the second blowing holes 123 is communicated with an external air source through a speed regulating valve, so that the blowing speed of the second blowing holes 123 can be controlled through the speed regulating valve.

[0052] The dust removal opening 130 has an inlet 131 and an outlet 132 in the second direction, the pole piece 3 passes through the inlet 131 and exits the dust removal opening 130 from the outlet 132, the first blowing part is located on the side of the first dust suction part close to the inlet 131, and the second blowing part is located on the side of the second dust suction part close to the inlet 131. That is, the first blowing hole 113 is close to the inlet 131 relative to the first dust suction port 112, and the second blowing hole 123 is close to the inlet 131 relative to the second dust suction port 122, so that in the passing direction of the pole piece 3, the dust 2 attached to the pole piece 3 can be blown away through the first blowing hole 113 and the second blowing hole 123, and the blown dust 2 is sucked through the first dust suction port 112 and the second dust suction port 122, thereby improving the dust removal efficiency of the pole piece 3.

[0053] Optionally, the blowing direction of the first blowing part forms an angle with the first direction, and the blowing direction of the second blowing part forms an angle with the first direction. It can be understood that the blowing direction of the first blowing hole 113 and the blowing direction of the second blowing hole 123 are not perpendicular to the surface of the pole piece 3, which can avoid abnormal shaking of the pole piece 3 caused by the gas blown by the first blowing hole 113 and the second blowing hole 123.

[0054] In detail, the blowing direction of the first blowing part is towards the outlet 132, and the blowing direction of the second blowing part is towards the outlet 132. Through the first blowing hole 113 and the second blowing hole 123, the dust 2 on the pole piece 3 can be blown towards the first dust suction port 112 and the second dust suction port 122 close to the outlet 132, so as to improve the dust suction efficiency of the first dust suction port 112 and the second dust suction port 122 for the dust 2 on the pole piece 3.

[0055] Optionally, the angle between the blowing direction of the first blowing part and the direction in which the inlet 131 points to the outlet 132 is within the range of 30-60°, and the angle between the blowing direction of the second blowing part and the direction in which the inlet 131 points to the outlet 132 is within the range of 30-60°.

[0056] In the embodiment, the angle between the blowing direction of the first blowing part and the direction in which the inlet 131 points to the outlet 132 is 45°, and the angle between the blowing direction of the second blowing part and the direction in which the inlet 131 points to the outlet 132 is 45°.

[0057] In the embodiment, the second dust removal part 120 is located below the first dust removal part 110, and the second dust removal part 120 is provided with a dust receiving groove 125 for receiving the falling dust 2, and the dust receiving groove 125 is connected with a negative pressure source. In detail, the dust receiving groove 125 is located on the side of the second blowing hole 123 away from the second dust suction port 122, and some dust 2 can fall in advance when the pole piece 3 is cut by the cutter 4, and the dust receiving groove 125 can receive the dust 2 falling in advance.

[0058] Optionally, in some embodiments, the first suction port 112 and the second suction port 122 together define an outlet 132 of a dust removal port 130 in the first direction away from the end of the blowing part, the dust removal port 130 is trapezoidal or triangular in shape, and the shell 100 further comprises a negative pressure chamber 140 in communication with the dust removal port 130. It can be understood that the first negative pressure chamber 111 and the second negative pressure chamber 121 together form the negative pressure chamber 140, and the two ends of the negative pressure chamber 140 in the third direction are further provided with negative pressure pipe openings 150 for connecting with a negative pressure source.

[0059] The following is a fluid simulation of the shell 100 provided in the present embodiment using the Flow Simulation plug-in of solidworks, setting boundary condition one "negative pressure pipe opening 150 wind speed 25 m / s", and boundary condition two "dust removal port 130 (material belt side) set to ambient pressure, pressure size is standard atmospheric pressure 101325 Pa". After the simulation calculation is completed, the airflow (or dust 2) path in the shell 100 is as shown in Figure 5 .

[0060] From the simulation results, it can be seen that the wind speed of the upper suction port 132 is approximately distributed in the range of 21.6-24.3 m / s, and the wind speed of the lower suction port is approximately distributed in the range of 20.9-23.4 m / s, and the specific data table is shown in Table 1 and Figure 5 . Figure 6 .

[0061]

[0062] Table 1

[0063]

[0064] Table 2

[0065] According to the above, the present embodiment can keep the uniformity of the wind speed of the suction port at 96.55% or more.

[0066] It should be noted that the wind speed uniformity = 1-(wind speed standard deviation / average wind speed) x 100%.

[0067] Optionally, in order to reduce the weight of the dust removal device, the shell 100 is made of ductile resin or transparent resin. The resin can be transparent resin or ductile resin.

[0068] Optionally, the overall structure of the present embodiment is manufactured by 3D printing additive manufacturing to ensure the strength of the entire structure.

[0069] In conclusion, the polar piece dust removal device 1 provided by the embodiment of the utility model includes a shell 100, the shell 100 includes the first dust removal piece 110 and the second dust removal piece 120 that are arranged at intervals along the first direction, and the first dust removal piece 110 and the second dust removal piece 120 have the dust removal port 130 for the polar piece 3 to pass through. The side of the first dust removal piece 110 close to the dust removal port 130 is provided with the first dust suction part and the first air blowing part that are sequentially arranged along the second direction, and the side of the second dust removal piece 120 close to the dust removal port 130 is provided with the second dust suction part and the second air blowing part that are sequentially arranged along the second direction. The first dust suction part and the second dust suction part are opposite and used to be connected with the negative pressure source to respectively suck the dust 2 on the upper and lower surfaces of the polar piece 3 passing through the dust removal port 130, the first air blowing part and the second air blowing part are opposite and used to be connected with the air source to respectively blow air to the upper and lower surfaces of the polar piece 3, the first direction and the second direction form an angle, and the running direction of the polar piece 3 is parallel to the second direction. The dust 2 firmly on the surface of the polar piece 3 can be blown up through the first air blowing part and the second air blowing part, and then the dust 2 is absorbed by the first dust suction part and the second dust suction part, so that the dust removal efficiency of the polar piece 3 is improved.

[0070] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pole piece dust removal device, characterized in that: include: A housing, the housing comprising a first dust removal member and a second dust removal member spaced apart along a first direction, a dust removal opening for the electrode to pass through being provided between the first dust removal member and the second dust removal member; A first dust suction portion and a first air blowing portion are provided on a side of the first dust removal member close to the dust removal port and are sequentially arranged along the second direction; a second dust suction portion and a second air blowing portion are provided on a side of the second dust removal member close to the dust removal port and are sequentially arranged along the second direction; Among them, the first dust suction part is opposite to the second dust suction part and is used to be connected to a negative pressure source to respectively suck dust from the upper and lower surfaces of the pole piece; the first air blowing part is opposite to the second air blowing part and is used to be connected to an air source to respectively blow air to the upper and lower surfaces of the pole piece; the first direction is angled with the second direction, and the running direction of the pole piece is parallel to the second direction.

2. The electrode dust removal device according to claim 1, characterized in that: The first dust suction part includes a first negative pressure chamber and a first dust suction port connected to the first negative pressure chamber, the volume of the first negative pressure chamber is larger than the volume of the first dust suction port, and the first negative pressure chamber is used to be connected to a negative pressure source; The second dust suction part includes a second negative pressure chamber and a second dust suction port connected to the second negative pressure chamber. The volume of the second negative pressure chamber is larger than the volume of the second dust suction port. The first dust suction port is opposite to the second dust suction port. The second negative pressure chamber is used to be connected to a negative pressure source.

3. The electrode dust removal device according to claim 2, characterized in that: One end of the first dust suction port in the first direction away from the first blowing part and one end of the second dust suction port in the first direction away from the second blowing part jointly define the outlet of the dust removal port. The dust removal port is trapezoidal or triangular in shape, and the shell also includes a negative pressure chamber connected to the dust removal port.

4. The electrode dust removal device according to claim 1, characterized in that: The first blowing portion includes a first blowing channel and a plurality of first blowing holes that are interconnected. The plurality of first blowing holes are arranged at intervals along the width direction of the electrode piece. An end of the first blowing channel away from the first blowing holes is connected to an external air source via a speed regulating valve. The second blowing part includes a second blowing channel and a plurality of second blowing holes that are connected to each other. The plurality of second blowing holes are arranged at intervals along the width direction of the pole piece. One end of the second blowing channel away from the second blowing holes is connected to an external air source through a speed regulating valve.

5. The electrode dust removal device according to claim 1, characterized in that: The dust removal port has an inlet and an outlet in the second direction, and the electrode piece passes through the inlet and out of the dust removal port from the outlet; The first air blowing part is located on a side of the first dust suction part close to the inlet, and / or the second air blowing part is located on a side of the second dust suction part close to the inlet.

6. The electrode dust removal device according to claim 5, characterized in that: The blowing direction of the first blowing part forms an angle with the first direction, and / or the blowing direction of the second blowing part forms an angle with the first direction.

7. The electrode dust removal device according to claim 6, characterized in that: The blowing direction of the first blowing part is toward the outlet, and the blowing direction of the second blowing part is toward the outlet.

8. The electrode dust removal device according to claim 7, characterized in that: The angle formed between the blowing direction of the first blowing part and the direction from the inlet to the outlet is within the range of 30 to 60 degrees, and the angle formed between the blowing direction of the second blowing part and the direction from the inlet to the outlet is within the range of 30 to 60 degrees.

9. The electrode dust removal device according to claim 7, characterized in that: The blowing direction of the first blowing part forms an angle of 45° with the direction from the inlet to the outlet, and / or the blowing direction of the second blowing part forms an angle of 45° with the direction from the inlet to the outlet.

10. The electrode dust removal device according to claim 1, characterized in that: The second dust removal member is located below the first dust removal member, and the second dust removal member is further provided with a dust receiving groove, the dust receiving groove is used to receive dust dropped from the electrode, and the dust receiving groove is used to be connected to a negative pressure source; and / or the housing is made by 3D printing; And / or the shell is made of tough resin or transparent resin.

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