Dust removal device, laser cleaning equipment and battery production line

Abstract

The utility model discloses a dust removal device, laser cleaning equipment and a battery production line, and relates to the technical field of laser cleaning, the dust removal device comprises a plurality of dust removal covers, an opening and closing device and a control device; the multiple dust removal covers are distributed in the first direction, laser channels are defined among the multiple dust removal covers, the laser channels are configured to allow laser beams emitted by the laser cleaning device to penetrate through and are opposite to the to-be-cleaned pole pieces loaded on the movable platform in the first direction, and each dust removal cover is provided with a dust removal channel; the opening and closing device is configured to be capable of controlling the multiple dust removal channels to be opened or closed; the control device is electrically connected to the opening and closing device. According to the technical scheme, the opening and closing devices can selectively open the dust removal channels of the corresponding dust removal covers, so that smoke dust generated in the laser cleaning process can be extracted in the moving direction of the movable platform, and the cleaning effect of the laser cleaning equipment is improved.

Description

Technical Field

[0001] This application relates to the field of laser cleaning technology, and in particular to a dust removal device, laser cleaning equipment, and battery production line. Background Technology

[0002] In the process of battery cell processing, the electrode sheet usually needs to undergo a laser cleaning process to remove contaminants and oxide layers from the electrode sheet surface, or to improve the electrochemical interface of the electrode sheet. In this laser cleaning process, it is usually necessary to use laser cleaning equipment to clean the moving electrode sheet. However, current laser cleaning equipment generally has the problem of not achieving the expected cleaning effect. Utility Model Content

[0003] The main purpose of this application is to propose a dust removal device, a laser cleaning equipment, and a battery production line, which aims to improve the problem that the cleaning effect of current laser cleaning equipment generally fails to meet expectations.

[0004] Firstly, the dust removal device proposed in this application is used in cleaning equipment with a laser cleaning device and a moving platform, the dust removal device comprising:

[0005] Multiple dust removal hoods are distributed around a first direction, and a laser channel is defined between the multiple dust removal hoods. The laser channel is configured to allow the laser beam emitted by the laser cleaning device to pass through, and is arranged opposite to the electrode to be cleaned loaded on the movable platform along the first direction. Each dust removal hood has a dust removal channel.

[0006] An opening and closing device, associated with the dust removal channels of the plurality of dust removal hoods, is configured to control the opening or closing of each of the plurality of dust removal channels; and,

[0007] A control device, electrically connected to the opening and closing device, is configured to control the opening and closing device to open the dust removal channel of at least one of the dust removal hoods located on the side of the laser channel along the direction of movement of the movable platform.

[0008] In the technical solution provided in this application, multiple dust removal hoods are distributed around the laser channel. The laser beam can pass through the laser channel and act on the electrode to be cleaned loaded on the moving platform. Based on this, the opening and closing device can independently control the opening and closing of the dust removal channels of multiple dust removal hoods, thereby opening the dust removal channel of at least one dust removal hood located in the moving direction of the moving platform relative to the laser channel. This allows the dust generated by laser cleaning to be promptly extracted along the moving direction of the moving platform, minimizing the adverse effects of the dust on the subsequent uncleaned parts of the electrode to be cleaned. After using this dust removal device for dust removal, the cleaning effect of the laser cleaning equipment can be significantly improved.

[0009] In one embodiment, the plurality of dust removal hoods includes two first dust removal hoods, which are distributed along a second direction;

[0010] The laser channel is located between the two first dust removal hoods, and the laser channel is configured to allow the laser beam emitted by the laser cleaning device to oscillate and scan in a third direction;

[0011] The first direction, the second direction, and the third direction intersect each other.

[0012] In the above technical solution, two first dust removal hoods are distributed along the second direction, and the laser channel defined between them can allow the laser beam to swing and scan along the third direction, so that the laser cleaning device can perform large-area cleaning operations in the third direction. With the movable platform moving back and forth along the second direction, the area to be cleaned on the electrode to be cleaned, which extends along the second direction and has a large width in the third direction, can be automatically cleaned.

[0013] In one embodiment, the dust removal channels of the two first dust removal hoods are configured to be connected in parallel to the negative pressure generating device;

[0014] The opening and closing device includes two opening and closing structures, which are configured to control the opening or closing of the dust removal channels of the two first dust removal hoods respectively.

[0015] The two opening and closing structures can cooperate with each other so that at least one of the dust removal channels is opened at the same time.

[0016] In the above technical solution, the dust removal channels of the two first dust removal hoods are connected in parallel to the negative pressure generating device. The negative pressure required by the two first dust removal hoods can be provided by a single negative pressure generating device, which is conducive to controlling the cost of supporting equipment. On this basis, through the cooperation of two opening and closing structures, it can be ensured that at least one dust removal channel is in the open state during the process of the moving platform changing its direction of movement, which is conducive to improving the situation of damage to the negative pressure generating device due to air stagnation.

[0017] In one embodiment, the air intake of the first dust hood has a plurality of air intake areas distributed along the third direction;

[0018] The dust removal channel includes a main channel and multiple branch channels. One end of each branch channel is connected to the main channel, and the other end of each branch channel is connected to a multiple air intake area.

[0019] In the above technical solution, the dust removal channel includes a main channel and multiple branch channels. The main channel is used to connect to the negative pressure generating equipment, and the multiple branch channels are connected in parallel to the main channel, so that the negative pressure of the main channel can be evenly distributed to the multiple branch channels, that is, it can be evenly applied to the multiple suction areas of the air inlet, so as to ensure that each local position of the air inlet has the same suction effect, and the smoke and dust generated by the laser cleaning device in the third-party direction large-area cleaning operation can be effectively sucked up.

[0020] In one embodiment, each of the plurality of branch channels is provided with a solenoid valve, the solenoid valve being configured to be individually opened or closed;

[0021] The opening and closing device includes the solenoid valve.

[0022] In the above technical solution, each branch channel is equipped with a solenoid valve, and each solenoid valve can be opened or closed independently. This allows the on / off state of multiple branch channels to be controlled. When the laser cleaning device performs cleaning operations in a third direction using only a local area of ​​the laser channel, only the solenoid valve of the branch channel corresponding to the air intake area can be opened, while other solenoid valves can be closed, thereby enhancing the local air intake. This matches the amount of smoke and dust generated in the local area of ​​the laser channel, ensuring the cleaning effect.

[0023] In one embodiment, the dust removal device further includes a mounting base;

[0024] The two first dust hoods are respectively movably disposed on the mounting base along the second direction to change the size of the laser channel in the second direction and match the movement speed of the moving platform along the second direction.

[0025] In the above technical solution, by movably mounting the two first dust removal hoods on the mounting base along the second direction, the size of the laser channel in the second direction can be changed, thereby matching the movement speed of the moving platform along the second direction and improving the versatility of the dust removal device.

[0026] In one embodiment, the dust removal device further includes multiple blowing structures, which correspond one-to-one with the dust removal hood to form a dust removal group;

[0027] In one of the dust removal groups, the blowing structure and the dust removal hood are respectively disposed on opposite sides of the laser channel, and the blowing structure is configured to blow air toward the laser channel.

[0028] In the above technical solution, the blowing structure in the dust removal group is set up one-to-one with the dust removal hood. When the control device controls the opening and closing device to open the dust removal channel of the corresponding dust removal hood according to the movement direction of the moving platform, the blowing structure corresponding to the dust removal hood can be opened synchronously. With the help of the blowing structure to blow air towards the laser channel, the smoke and dust can be blown towards the air intake of the dust removal hood along the movement direction of the moving platform, thereby improving the dust removal effect.

[0029] In one embodiment, the air intake of the dust hood is disposed facing the laser channel, and a guide plate is disposed inside the air intake. The guide plate is disposed at an angle along the first direction and is configured to face the electrode to be cleaned.

[0030] In the above technical solution, in addition to setting the air intake of the dust removal hood towards the laser channel, a guide plate is also set inside the air intake. Since the guide plate is set at an angle along the first direction, it can guide the air intake direction of the air intake towards the point of dust generation, that is, towards the electrode to be cleaned, thereby achieving effective collection of dust particles and improving the problem of laser cleaning quality fluctuation caused by dust obstruction.

[0031] Secondly, the laser cleaning equipment proposed in this application includes:

[0032] The dust removal device mentioned above;

[0033] A movable platform is disposed on one side of the laser channel of the dust removal device along the first direction. The movable platform is configured to load the electrode to be cleaned and is reciprocally movable within a plane intersecting the first direction.

[0034] A laser cleaning device is disposed on the other side of the laser channel of the dust removal device along the first direction. The laser cleaning device is configured to emit a laser beam toward the laser channel and act on the area to be cleaned of the electrode to be cleaned.

[0035] In one embodiment, the active platform is configured to reciprocate along a second direction;

[0036] The laser cleaning equipment also includes a movable base, on which the laser cleaning device and the dust removal device are disposed. The movable base is configured to be movable in a third direction, and to drive the laser channel of the dust removal device to reach the cleaning area of ​​the electrode to be cleaned in the third direction.

[0037] The first direction, the second direction, and the third direction intersect each other.

[0038] In the above technical solution, since the movable seat can move along a third direction, it can add a moving stroke along a third direction to the laser cleaning device. When the scanning area of ​​the laser cleaning device along the third direction is insufficient to cover the area to be cleaned, the movable seat can be used to adjust its position in the third direction to compensate for the insufficient scanning area and expand the applicable range of the laser cleaning equipment.

[0039] In one embodiment, the laser cleaning equipment further includes a movable base, on which the laser cleaning device is disposed. The movable base is configured to be positionally adjustable along the first direction to adjust the cleaning depth of the laser beam of the laser cleaning device.

[0040] In the above technical solution, when the cleaning effect of a single cleaning cannot meet the cleaning requirements, the position of the movable seat can be adjusted in the first direction, thereby adjusting the focus of the laser beam of the laser cleaning device in the first direction, thus realizing the layered cleaning of the laser beam in the first direction.

[0041] Thirdly, the battery production line proposed in this application includes the aforementioned laser cleaning equipment. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of the dust removal device provided in this application;

[0044] Figure 2 for Figure 1 A side view of the dust collector hood.

[0045] Explanation of icon numbers:

[0046] 100. Dust removal device; 200. Movable platform;

[0047] 1. Mounting bracket;

[0048] 2. Dust hood; 2a. Laser channel; 21. First dust hood; 21a. Dust removal channel; 211. Air intake; 212. Deflector plate;

[0049] 3. Opening and closing device; 31. Opening and closing structure; 311. Solenoid valve;

[0050] 4. Blowering structure;

[0051] X, first direction; Y, second direction; Z, third direction.

[0052] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0053] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0055] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0056] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0058] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0059] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0060] In the process of battery cell processing, the electrode sheet usually needs to undergo a laser cleaning process to remove contaminants and oxide layers from the electrode sheet surface, or to improve the electrochemical interface of the electrode sheet. In this laser cleaning process, it is usually necessary to use laser cleaning equipment to clean the moving electrode sheet. However, current laser cleaning equipment generally has the problem of not achieving the expected cleaning effect.

[0061] The reason for this is that laser cleaning equipment is usually equipped with a laser cleaning device and a dust removal device. The dust removal device is used to remove the fumes generated by the laser cleaning device from the cleaning area. Currently, the dust removal device usually includes multiple dust hoods, which are set around the cleaning area and operate simultaneously. However, the dust removal method of multiple dust hoods operating at the same time has many drawbacks. One of the biggest impacts on the cleaning effect is that the simultaneous dust removal by multiple dust hoods will cause turbulent dust flow. The disordered dust will weaken the cleaning effect of the laser cleaning device on the subsequent uncleaned parts of the electrode.

[0062] In view of this, this application provides a dust removal device and a laser cleaning equipment. The dust removal device can open the corresponding dust removal hood according to the movement direction of the electrode, so that the dust removal direction matches the movement direction of the electrode, which can at least improve the problem that the cleaning effect of current laser cleaning equipment is not as expected.

[0063] To facilitate understanding of the dust removal device provided in this application, the following description is provided in conjunction with the accompanying drawings, wherein... Figure 1 This is a schematic diagram of the dust removal device provided in this application; Figure 2 for Figure 1 A side view of the dust collector hood.

[0064] Please see Figure 1 and Figure 2In one embodiment of this application, a dust removal device 100 is used in a cleaning device having a laser cleaning device and a movable platform 200. The dust removal device 100 includes a plurality of dust removal hoods 2, an opening and closing device 3, and a control device. The plurality of dust removal hoods 2 are distributed around a first direction X, and a laser channel 2a is defined between the plurality of dust removal hoods 2. The laser channel 2a is configured to allow a laser beam emitted by the laser cleaning device to pass through, and is positioned opposite to the electrode to be cleaned loaded on the movable platform 200 along the first direction X. Each dust removal hood 2 has a dust removal channel 21a. The opening and closing device 3 is associated with the dust removal channels 21a of the plurality of dust removal hoods 2, and is configured to control the opening or closing of the plurality of dust removal channels 21a respectively. The control device is electrically connected to the opening and closing device 3, and is configured to control the opening and closing device 3 to open the dust removal channel 21a of at least one dust removal hood 2 located on the side of the laser channel 2a along the movable direction of the movable platform 200.

[0065] "Multiple dust removal hoods 2 are distributed around the first direction X" means that multiple dust removal hoods 2 are distributed around each other in a plane intersecting with the first direction X, thereby defining a laser channel 2a that runs through the first direction X between the multiple dust removal hoods 2. The laser beam emitted by the laser cleaning device can pass through the laser channel 2a along the first direction X and act on the electrode to be cleaned loaded on the movable platform 200. The number of multiple dust removal hoods 2 is at least two, but can also be four or more, and each dust removal hood 2 can be responsible for dust removal in its corresponding direction.

[0066] Since the laser channel 2a is arranged through the first direction X, the movable platform 200 is usually arranged to move back and forth in the plane intersecting with the first direction X. To facilitate understanding that "the opening and closing device 3 opens the dust removal channel 21a of at least one dust removal hood 2 on the side of the laser channel 2a along the movement direction of the movable platform 200", the following example is given. When the first direction X is the up and down direction and the movable platform 200 moves forward in the horizontal plane, the dust removal channel 21a of the dust removal hood 2 in front of the laser channel 2a can be opened. The dust removal hood 2 can be located directly in front of the laser channel 2a, or it can be located to the left or right front of the laser channel 2a. Therefore, there can be one or more dust removal hoods 2 in front of the laser channel 2a.

[0067] There are various structural types of the "opening and closing device 3". For example, the opening and closing device 3 can be a multi-way valve. The multi-way valve has a main interface and multiple branch interfaces. The main interface is used to connect to the negative pressure generating device, and the multiple branch interfaces are used to connect to the dust removal channels 21a of multiple dust removal hoods 2. By controlling the position of the valve core of the multi-way valve, the corresponding dust removal channel 21a can be opened, while other dust removal channels 21a can be closed. This embodiment does not limit this.

[0068] The "control device" can control the opening and closing device 3 based on the direction of movement of the moving platform 200. It typically has a signal acquisition module and a signal processing module. The signal acquisition module can be a motion sensor (e.g., a triaxial accelerometer) installed on the moving platform 200. The motion sensor can sense the direction of movement of the moving platform 200 and generate a motion signal that matches the direction of movement. The signal processing module controls the opening and closing device 3 to perform corresponding actions based on the motion signal emitted by the motion sensor. Specifically, the opening and closing device 3 can include multiple opening and closing structures, which control multiple dust removal channels 21a to open or close respectively. The signal processing module controls the opening and closing structure located in the corresponding position to act based on the motion signal emitted by the motion sensor.

[0069] In the technical solution provided in this application, multiple dust removal hoods 2 are distributed around the laser channel 2a. The laser beam can pass through the laser channel 2a and act on the electrode to be cleaned loaded on the movable platform 200. Based on this, the opening and closing device 3 can independently control the opening and closing of the dust removal channels 21a of the multiple dust removal hoods 2, thereby opening the dust removal channel 21a of at least one dust removal hood 2 located in the direction of movement of the movable platform 200 relative to the laser channel 2a. This allows the dust generated by laser cleaning to be promptly extracted along the direction of movement of the movable platform 200, and the adverse effects of the dust on the subsequently uncleaned parts are low. After using the dust removal device 100 for dust removal, the cleaning effect of the laser cleaning equipment can be significantly improved.

[0070] Please see Figure 1 and Figure 2 In one embodiment, the plurality of dust hoods 2 include two first dust hoods 21, which are distributed along the second direction Y; the laser channel 2a is located between the two first dust hoods 21 and is configured to allow the laser beam emitted by the laser cleaning device to swing and scan along the third direction Z; wherein the first direction X, the second direction Y, and the third direction Z intersect each other.

[0071] "The first direction X, the second direction Y, and the third direction Z intersect each other" means that there is an angle between each pair of the first direction X, the second direction Y, and the third direction Z. This angle can take any value within the range of 0° to 180°. Usually, this angle is 90°, that is, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0072] Combining the descriptions of "two first dust removal hoods 21 distributed along the second direction Y" and "the laser channel 2a being configured to allow the laser beam emitted by the laser cleaning device to swing and scan along the third direction Z," it can be understood that the size of the laser channel 2a in the third direction Z can be set to be larger than the size in the second direction Y. That is, the laser channel 2a is elongated, and the first dust removal hoods 21 are located on the long side of the laser channel 2a in the second direction Y. The effective distance of the smoke and dust is shorter, resulting in a better dust removal effect.

[0073] In the above technical solution, two first dust removal hoods 21 are distributed along the second direction Y, and the laser channel 2a defined therebetween can allow the laser beam to swing and scan along the third direction Z, so that the laser cleaning device can perform large-area cleaning operations in the third direction Z. With the movable platform 200 reciprocating along the second direction Y, the area to be cleaned on the electrode to be cleaned, which extends along the second direction Y and has a large width in the third direction Z, can be automatically cleaned.

[0074] In one embodiment, the dust removal channels 21a of the two first dust removal hoods 21 are configured to be connected in parallel to the negative pressure generating device; the opening and closing device 3 includes two opening and closing structures 31, which are configured to control the opening or closing of the dust removal channels 21a of the two first dust removal hoods 21 respectively; wherein the two opening and closing structures 31 can cooperate with each other so that at least one dust removal channel 21a is opened at the same time.

[0075] To facilitate understanding that "the two opening and closing structures 31 can cooperate with each other so that at least one dust removal channel 21a is opened at the same time", the movable platform 200 is defined to reciprocate along the front-back direction (second direction Y). During the forward movement of the movable platform 200, the dust removal channel 21a of the first dust removal cover 21 located in front of the laser channel 2a is opened. During the process of the movable platform 200 switching from forward movement to backward movement, the dust removal channel 21a of the first dust removal cover 21 located behind the laser channel 2a is opened first, and then the dust removal channel 21a of the first dust removal cover 21 located in front of the laser channel 2a is closed.

[0076] In the above technical solution, the dust removal channels 21a of the two first dust removal hoods 21 are connected in parallel to the negative pressure generating device. The negative pressure required by the two first dust removal hoods 21 can be provided by a single negative pressure generating device, which is conducive to controlling the cost of the supporting equipment. On this basis, through the cooperation of the two opening and closing structures 31, it can be ensured that at least one dust removal channel 21a is in the open state during the process of the moving platform 200 changing its moving direction, which is conducive to improving the situation of damage to the negative pressure generating device due to air stagnation.

[0077] In one embodiment, the air intake 211 of the first dust hood 21 has multiple air intake areas distributed along the third direction Z; the dust removal channel 21a includes a main channel and multiple branch channels, one end of the multiple branch channels is connected to the main channel, and the other end of the multiple branch channels is respectively connected to the multiple air intake areas.

[0078] Based on the elongated shape of the laser channel 2a, the size of the suction port 211 in the third direction Z should be at least equal to the size of the laser channel 2a in the third direction Z, that is, the suction port 211 also has a large size in the third direction Z. To facilitate understanding that "the other end of the multiple branch channels is connected to multiple suction areas respectively", the first dust removal hood 21 is defined to include the hood body and the dust removal channel 21a. The suction port 211 is formed in the hood body and connected to the inner cavity of the hood body. The other end of the multiple branch channels is also connected to the inner cavity of the hood body and is distributed along the third direction Z.

[0079] In the above technical solution, the dust removal channel 21a includes a main channel and multiple branch channels. The main channel is used to connect to the negative pressure generating device, and the multiple branch channels are connected in parallel to the main channel, so that the negative pressure of the main channel can be evenly distributed to the multiple branch channels, that is, it can be evenly applied to the multiple suction areas of the suction port 211, so as to ensure that each local position of the suction port 211 has the same suction effect, and the smoke and dust generated by the laser cleaning device in the third direction Z can be effectively sucked up.

[0080] Please see Figure 1 In one embodiment, multiple branch channels are respectively provided with solenoid valves 311, and the solenoid valves 311 are configured to be opened or closed individually; the opening and closing device 3 includes solenoid valves 311.

[0081] It should be noted that although the laser channel 2a has a large size in the third direction Z, meaning that the laser cleaning device can perform large-area cleaning in the third direction Z, in some special cases, such as when the electrode to be cleaned has a large-area cleaning area and a small-area cleaning area connected to each other in the second direction Y, when the laser channel 2a is in the large-area cleaning area, multiple branch channels can be opened by multiple solenoid valves 311, and when the laser channel 2a is in the small-area cleaning area, a single branch channel can be opened by a single solenoid valve 311, so that the dust removal operation is targeted.

[0082] In the above technical solution, each branch channel is equipped with a solenoid valve 311, and each solenoid valve 311 can be opened or closed individually. This allows the on / off state of multiple branch channels to be controlled. When the laser cleaning device only uses a local area of ​​the laser channel 2a for cleaning in the third direction Z, only the solenoid valve 311 of the corresponding suction area branch channel can be opened, and other solenoid valves 311 can be closed, thereby enhancing the local air intake. This matches the amount of smoke and dust generated in the local area of ​​the laser channel 2a, ensuring the cleaning effect.

[0083] Please see Figure 1 In one embodiment, the dust removal device 100 further includes a mounting base 1; two first dust removal covers 21 are respectively movably disposed on the mounting base 1 along the second direction Y to change the size of the laser channel 2a in the second direction Y and match the movement speed of the moving platform 200 along the second direction Y.

[0084] There are several ways to "move the two first dust collector hoods 21 movably along the second direction Y onto the mounting base 1". For example, please refer to [link to relevant documentation]. Figure 1 The mounting base 1 is provided with a connecting hole that is elongated along the second direction Y. The first dust cover 21 can be inserted into the connecting hole through a threaded locking structure and locked to the mounting base 1 after the position is adjusted. Alternatively, the mounting base 1 is provided with an adjusting cylinder. The cylinder rod of the adjusting cylinder is movably extended and retracted along the second direction Y. The first dust cover 21 is connected to the cylinder rod of the adjusting cylinder. Under the drive of the cylinder rod, the position of the first dust cover 21 in the second direction Y can be adjusted. This application embodiment does not limit this.

[0085] Based on the working principle of laser cleaning device, when the moving platform 200 moves slowly along the second direction Y, the laser beam emitted by the laser cleaning device usually deflects slightly along the second direction Y. When the moving platform 200 moves quickly along the second direction Y, the laser beam emitted by the laser cleaning device usually deflects slightly along the second direction Y.

[0086] In the above technical solution, by movably setting the two first dust removal hoods 21 along the second direction Y on the mounting base 1, the size of the laser channel 2a in the second direction Y can be changed, thereby matching the movement speed of the moving platform 200 along the second direction Y, and improving the versatility of the dust removal device 100.

[0087] Please see Figure 2 In one embodiment, the dust removal device 100 further includes a plurality of blowing structures 4, which correspond one-to-one with the dust removal hood 2 to form a dust removal group; in a dust removal group, the blowing structures 4 and the dust removal hood 2 are respectively arranged on opposite sides of the laser channel 2a, and the blowing structures 4 are configured to blow air toward the laser channel 2a.

[0088] "Blowing structure 4" can also be understood as air knife; specifically, the opening and closing of blowing structure 4 is also controlled by opening and closing device 3 to ensure that blowing structure 4 and dust hood 2 in the same dust removal group can be opened or closed synchronously.

[0089] Based on the fact that a dust removal group is formed by a one-to-one correspondence between a single blowing structure 4 and a single dust removal hood 2, it can be seen that multiple blowing structures 4 and multiple dust removal hoods 2 can form multiple dust removal groups respectively.

[0090] In the above technical solution, the blowing structure 4 in the dust removal group is set one-to-one with the dust removal hood 2. When the control device controls the opening and closing device 3 to open the dust removal channel 21a of the corresponding dust removal hood 2 according to the movement direction of the moving platform 200, the blowing structure 4 in the same dust removal group as the dust removal hood 2 can be opened synchronously. With the help of the blowing structure 4 to blow air towards the laser channel 2a, the smoke and dust can be blown towards the air intake 211 of the dust removal hood 2 along the movement direction of the moving platform 200, thereby improving the dust removal effect.

[0091] Please see Figure 2 In one embodiment, the air intake 211 of the dust hood 2 is disposed toward the laser channel 2a, and a guide plate 212 is disposed inside the air intake 211. The guide plate 212 is disposed at an angle along the first direction X and is configured to face the electrode to be cleaned.

[0092] In the above technical solution, based on the fact that the air intake 211 of the dust hood 2 is set towards the laser channel 2a, a guide plate 212 is also set inside the air intake 211. Since the guide plate 212 is inclined along the first direction X, it can guide the air intake direction of the air intake 211 towards the point of dust generation, that is, towards the electrode to be cleaned, thereby achieving effective collection of dust particles and improving the problem of laser cleaning quality fluctuation caused by dust obstruction.

[0093] The laser cleaning equipment proposed in this application includes a dust removal device 100, a movable platform 200, and a laser cleaning device. The movable platform 200 is disposed on one side of the laser channel 2a of the dust removal device 100 along the first direction X. The movable platform 200 is configured to load the electrode to be cleaned and is reciprocally movable in the plane intersecting with the first direction X. The laser cleaning device is disposed on the other side of the laser channel 2a of the dust removal device 100 along the first direction X. The laser cleaning device is configured to emit a laser beam toward the laser channel 2a and act on the area to be cleaned of the electrode.

[0094] The specific structure of the dust removal device 100 is as described in the above embodiments. Since the laser cleaning equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0095] The core structure of the "laser cleaning device" is the galvanometer system, which typically includes two mutually perpendicular mirrors (a second-direction Y-scanning mirror and a third-direction Z-scanning mirror), driven by a low-inertia servo motor. When the laser beam is incident on the mirror, and the mirror deflects according to computer instructions (such as a voltage signal from -5V to +5V or -10V to +10V), the laser beam deflects accordingly, thereby scanning a preset pattern or trajectory on the processing plane. This deflection process relies on the electromagnetic drive principle: current passes through the coil on the mirror, generating torque in the magnetic field, causing the mirror to deflect; the deflection angle is proportional to the input current, and positioning accuracy is ensured through a closed-loop feedback system (such as a position sensor).

[0096] "The activity platform 200 can be reciprocated within the plane intersecting with the first direction X" means that the activity platform 200 can be reciprocated along the second direction Y or the third direction Z, where the plane containing the second direction Y and the third direction Z is also the plane intersecting with the first direction X.

[0097] In one embodiment, the active platform 200 is reciprocated along the second direction Y; the laser cleaning equipment also includes an active seat, on which the laser cleaning device and the dust removal device 100 are disposed. The active seat is configured to be movable along the third direction Z, and to drive the laser channel 2a of the dust removal device 100 to reach the cleaning area of ​​the electrode to be cleaned in the third direction Z; wherein the first direction X, the second direction Y, and the third direction Z intersect each other.

[0098] "The active seat is configured to be movable in the third direction Z" can be understood as the active seat moving in the third direction Z under the driving action of the drive module.

[0099] In the above technical solution, the laser cleaning device and the dust removal device 100 are mounted on a movable base. Since the movable base can move along the third direction Z, it can add a travel distance along the third direction Z to the laser cleaning device. When the scanning area of ​​the laser cleaning device along the third direction Z is insufficient to cover the area to be cleaned, the movable base can be used to adjust its position in the third direction Z to compensate for the insufficient scanning area and expand the applicable range of the laser cleaning equipment.

[0100] In one embodiment, the laser cleaning equipment further includes a movable base, on which a laser cleaning device is disposed. The movable base is configured to be positionally adjustable along a first direction X to adjust the cleaning depth of the laser beam from the laser cleaning device.

[0101] In the above technical solution, when the cleaning effect of a single cleaning cannot meet the cleaning requirements, the position of the movable seat can be adjusted in the first direction X, thereby adjusting the focus of the laser beam of the laser cleaning device in the first direction X, thus realizing the layered cleaning of the laser beam in the first direction X.

[0102] This application also proposes a battery production line, which includes a laser cleaning device. The specific structure of the laser cleaning device is as described in the above embodiments. Since the battery production line adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0103] In a specific embodiment of this application, the laser cleaning equipment includes a movable base, a dust removal device 100, a movable platform 200, and a laser cleaning device; the dust removal device 100 includes a mounting base 1, two first dust removal hoods 21, an opening and closing device 3, two blowing structures 4, and a control device; the first dust removal hoods 21 are spaced apart along the second direction Y on the mounting base 1, defining a laser channel 2a therebetween, and the dust removal channels 21a of the two first dust removal hoods 21 are configured to be connected in parallel to a negative pressure generating device; the opening and closing device 3 includes two solenoid valves 311, the two solenoid valves 311... 11 are respectively installed in the dust removal channels 21a of the two first dust removal hoods 21, and can control the opening and closing of the two dust removal channels 21a respectively; two blowing structures 4 are respectively corresponding to the two first dust removal hoods 21 to form a dust removal group. In the same dust removal group, the blowing structure 4 and the first dust removal hood 21 are respectively installed on opposite sides of the laser channel 2a along the second direction Y, and the blowing structure 4 is configured to blow air towards the laser channel 2a; the movable platform 200 is installed on one side of the dust removal channel 21a of the dust removal device 100 along the first direction X. The movable platform 200 is configured to load the electrode to be cleaned and along the... The second direction Y is reciprocating; the two first dust removal hoods 21 are configured to be adjustable in position along the second direction Y on the mounting base 1 to change the size of the laser channel 2a in the second direction Y and match the movement speed of the moving platform 200 along the second direction Y; the laser cleaning device is located on the other side of the dust removal channel 21a of the dust removal device 100 along the first direction X, and the laser cleaning device is configured to emit a laser beam toward the laser channel 2a, the laser beam being able to swing and scan along the third direction Z and act on the area to be cleaned of the electrode to be cleaned; the laser cleaning device and the mounting base 1 of the dust removal device 100 are configured... The movable seat is configured to move along the third direction Z, and drive the laser channel 2a of the dust removal device 100 to reach the cleaning area of ​​the electrode to be cleaned in the third direction Z. The movable seat is also configured to be adjustable in position along the first direction X, so as to adjust the cleaning depth of the laser beam of the laser cleaning device. The control device is electrically connected to the two blowing structures 4 and the two solenoid valves 311. The control device is configured to control the solenoid valves 311 to open the dust removal channel 21a of the first dust removal hood 21 in the direction of movement of the movable platform 200 relative to the laser channel 2a, and to open the blowing structure 4 in the same dust removal group.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A dust removal device for use in cleaning equipment with a laser cleaning unit and a movable platform, characterized in that, The dust removal device includes: Multiple dust removal hoods are distributed around a first direction, and a laser channel is defined between the multiple dust removal hoods. The laser channel is configured to allow the laser beam emitted by the laser cleaning device to pass through, and is arranged opposite to the electrode to be cleaned loaded on the movable platform along the first direction. Each dust removal hood has a dust removal channel. An opening and closing device, associated with the dust removal channels of the plurality of dust removal hoods, is configured to control the opening or closing of each of the plurality of dust removal channels; and, A control device, electrically connected to the opening and closing device, is configured to control the opening and closing device to open the dust removal channel of at least one of the dust removal hoods located on the side of the laser channel along the direction of movement of the movable platform.

2. The dust removal device as described in claim 1, characterized in that, The plurality of dust collection hoods includes two first dust collection hoods, which are distributed along a second direction; The laser channel is located between the two first dust removal hoods, and the laser channel is configured to allow the laser beam emitted by the laser cleaning device to oscillate and scan in a third direction; The first direction, the second direction, and the third direction intersect each other.

3. The dust removal device as described in claim 2, characterized in that, The dust removal channels of the two first dust removal hoods are configured to be connected in parallel to the negative pressure generating device; The opening and closing device includes two opening and closing structures, which are configured to control the opening or closing of the dust removal channels of the two first dust removal hoods respectively. The two opening and closing structures can cooperate with each other so that at least one of the dust removal channels is opened at the same time.

4. The dust removal device as described in claim 2, characterized in that, The first dust removal hood has an air intake with multiple air intake areas distributed along the third direction; The dust removal channel includes a main channel and multiple branch channels. One end of each branch channel is connected to the main channel, and the other end of each branch channel is connected to a multiple air intake area.

5. The dust removal device as described in claim 4, characterized in that, Each of the branch channels is equipped with a solenoid valve, and the solenoid valve is configured to be opened or closed individually. The opening and closing device includes the solenoid valve.

6. The dust removal device as described in claim 2, characterized in that, The dust removal device also includes a mounting base; The two first dust hoods are respectively movably disposed on the mounting base along the second direction to change the size of the laser channel in the second direction and match the movement speed of the moving platform along the second direction.

7. The dust removal device according to any one of claims 1 to 6, characterized in that, The dust removal device also includes multiple blowing structures, which correspond one-to-one with the dust removal hood to form a dust removal group; In one of the dust removal groups, the blowing structure and the dust removal hood are respectively disposed on opposite sides of the laser channel, and the blowing structure is configured to blow air toward the laser channel.

8. The dust removal device according to any one of claims 1 to 6, characterized in that, The air intake of the dust removal hood is oriented toward the laser channel, and a guide plate is provided inside the air intake. The guide plate is inclined along the first direction and is configured to face the electrode to be cleaned.

9. A laser cleaning device, characterized in that, include: The dust removal device as described in any one of claims 1 to 8; A movable platform is disposed on one side of the laser channel of the dust removal device along the first direction. The movable platform is configured to load the electrode to be cleaned and is reciprocally movable within a plane intersecting the first direction. A laser cleaning device is disposed on the other side of the laser channel of the dust removal device along the first direction. The laser cleaning device is configured to emit a laser beam toward the laser channel and act on the area to be cleaned of the electrode to be cleaned.

10. The laser cleaning equipment as described in claim 9, characterized in that, The activity platform is set to reciprocate along the second direction; The laser cleaning equipment also includes a movable base, on which the laser cleaning device and the dust removal device are disposed. The movable base is configured to be movable in a third direction, and to drive the laser channel of the dust removal device to reach the cleaning area of ​​the electrode to be cleaned in the third direction. The first direction, the second direction, and the third direction intersect each other.

11. The laser cleaning equipment as described in claim 9, characterized in that, The laser cleaning equipment also includes a movable base, on which the laser cleaning device is disposed. The movable base is configured to be positionally adjustable along the first direction to adjust the cleaning depth of the laser beam of the laser cleaning device.

12. A battery production line, characterized in that, Includes the laser cleaning equipment as described in any one of claims 9 to 11.

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