Dust removal structure and dust removal device

Abstract

The utility model belongs to perovskite solar cell manufacturing technical field discloses a dust removal structure and dust removal device. Dust removal structure includes dust absorption cover, and dust absorption cover has dust absorption cavity, and one end of dust absorption cavity is used for being connected with suction duct along first direction, and the other end is provided with opening, and dust absorption cavity still has dust suction mouth that is open to second direction, and second direction is set up with first direction and presents the angle of inclusion. Air current from dust suction mouth flows into suction duct through dust absorption cavity to form dust suction air current. The air current in the dust absorption cavity of this dust removal structure is relatively stable, the probability of turbulence is smaller, and dust accumulation at the junction of the inner wall of the dust absorption cover can be avoided, thereby improving the dust absorption effect of the dust removal structure.

Description

Technical Field

[0001] This utility model relates to the field of perovskite solar cell manufacturing technology, and in particular to a dust removal structure and dust removal device. Background Technology

[0002] Perovskite solar cells, as a novel type of solar cell, offer advantages such as simple fabrication, low cost, high conversion efficiency, and flexibility, and are expected to gradually replace currently commercialized crystalline silicon solar cells. Currently, laser etching for large-area perovskite modules generally employs two methods: laser incidence through the glass surface and laser incidence through the film surface. However, film-surface incidence faces challenges such as incomplete etching of the film layer and a small process window. Therefore, most companies currently use laser incidence through the glass surface for laser etching. While laser incidence through the glass surface can etch the film layer relatively cleanly, it presents a problem of incomplete dust removal for large-area modules. Previous dust removal solutions involved positioning the dust collection port of the dust collection structure perpendicular to the laser etching position. Because the airflow is squeezed towards the center of the dust collection port from both sides, some turbulence occurs inside the port, preventing complete dust removal.

[0003] Therefore, there is an urgent need to design a dust removal structure and device to overcome the shortcomings of existing technologies and meet the needs of practical applications. Utility Model Content

[0004] The first objective of this invention is to provide a dust removal structure in which the airflow inside the dust collection chamber is relatively stable, the probability of turbulence is small, and dust accumulation on the inner wall of the dust collection hood is prevented, thereby improving the dust collection effect of the dust removal structure.

[0005] The second objective of this invention is to provide a dust removal device that has a better dust removal effect.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model discloses a dust removal structure, including a dust suction hood, the dust suction hood having a dust suction chamber, one end of the dust suction chamber along a first direction being connected to an air extraction pipe, and the other end being provided with an opening, the dust suction chamber also having a dust suction port opening towards a second direction, the second direction being arranged at an angle to the first direction; wherein, airflow flows from the dust suction port through the dust suction chamber into the air extraction pipe to form a dust suction airflow.

[0008] In some embodiments, the dust removal structure further includes a side sealing plate, which is detachably mounted to one end of the dust hood where the opening is located, and is used to adjust the size of the opening.

[0009] In some specific embodiments, the side sealing plate has a window communicating with the opening; or, the side sealing plate is used to block part of the opening; or, the side sealing plate is used to open in the opposite direction along a second direction to adjust the size of the opening.

[0010] In some embodiments, the dust hood includes an upper sealing plate and a lower sealing plate, which together form the dust suction chamber.

[0011] In some embodiments, the upper sealing plate includes a top plate, two first side plates, and two second side plates. One of the first side plates has the opening, and the other first side plate is connected to the air extraction pipe. The two second side plates are respectively connected to the lower sealing plate; or...

[0012] The upper sealing plate includes an arc panel, a first side plate, and two second side plates. The arc panel has an opening at the end opposite to the first side plate. The first side plate is connected to the air extraction pipe, and the two second side plates are respectively connected to the lower sealing plate.

[0013] In some specific embodiments, the lower sealing plate is adjustablely mounted on the upper sealing plate along the second direction to adjust the volume of the dust suction chamber.

[0014] In some more specific embodiments, one of the sidewalls of the lower sealing plate and the upper sealing plate is provided with a strip-shaped hole extending along the second direction, and the other is provided with a mounting hole corresponding to the strip-shaped hole; the mounting member passes through the strip-shaped hole and is fixed to the mounting hole to fix the lower sealing plate to the upper sealing plate.

[0015] In some optional embodiments, a mounting nut is embedded in the mounting hole, and the mounting component is a mounting bolt that mates with the mounting nut.

[0016] In some embodiments, the dust removal structure further includes a guide plate, which is installed at one end of the dust removal chamber where the opening is located, and the guide plate has an inclined guiding surface.

[0017] This utility model also discloses a dust removal device, including an installation mechanism and the dust removal structure described above. The dust removal structure is installed on the installation mechanism, and the dust suction port is arranged parallel to the surface of the grooved panel. The installation mechanism is used to drive the dust removal structure to move along a first direction.

[0018] In some embodiments, the exhaust pipe connected to the dust removal structure includes a first pipe section and a second pipe section connected together, the first pipe section and the second pipe section being arranged at an angle, and the first pipe section extending along the first direction.

[0019] The beneficial effects of this utility model are as follows: During the dust collection process, the added opening can make the airflow from the dust collection chamber to the air extraction pipe more stable. There is basically no turbulence or eddy current in the entire dust collection chamber. The stable airflow has a better dust collection ability, thereby improving the dust collection ability of the dust removal structure and ensuring that all the dust generated during the scribing process is sucked away, which is conducive to improving the manufacturing yield of battery components.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the connection structure between the dust removal structure and the air extraction pipe in Embodiment 1 of this utility model;

[0022] Figure 2 yes Figure 1 A schematic diagram of the structure from another direction is shown.

[0023] Figure 3 This is a flow chart of the air extraction process of the dust removal structure in Embodiment 1 of this utility model;

[0024] Figure 4 This is a schematic diagram of the dust removal structure according to Embodiment 1 of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the dust removal structure and the air extraction pipe in Embodiment 2 of this utility model;

[0026] Figure 6 This is an exploded view of the dust removal structure of Embodiment 2 of this utility model;

[0027] Figure 7 This is a schematic diagram of the connection structure between the dust removal structure and the air extraction pipe in Embodiment 3 of this utility model;

[0028] Figure 8 This is a schematic diagram of the connection structure between the dust removal structure and the air extraction pipe in Embodiment 4 of this utility model;

[0029] Figure 9 This is a schematic diagram of the connection structure between the dust removal structure and the air extraction pipe in Embodiment 5 of this utility model;

[0030] Figure 10 yes Figure 9 A schematic diagram of the structure from another direction.

[0031] Figure label:

[0032] 100. Dust hood; 110. Top sealing plate; 111. Top plate; 112. First side plate; 113. Second side plate; 114. Curved panel; 101. Dust suction chamber; 102. Dust suction port; 103. Opening; 104. Mounting hole; 120. Bottom sealing plate; 121. Strip hole; 200. Side sealing plate; 210. Window;

[0033] 300. Extraction pipe; 310. First pipe section; 320. Second pipe section;

[0034] 400, fixing screw; 500, mounting part; 600, mounting nut; 700, connecting bolt. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] Example 1:

[0039] This utility model discloses a dust removal structure for adsorbing dust generated during the laser scribing process of perovskite solar cell modules. It can also be used in other thin-film solar cell manufacturing processes where dust adsorption is required. (Reference) Figures 1-4As shown, the dust removal structure includes a dust suction hood 100, which has a dust suction chamber 101. One end of the dust suction chamber 101 along a first direction is connected to an air extraction pipe 300, and the other end is provided with an opening 103. The dust suction chamber 101 also has a dust suction port 102 that opens towards a second direction, which is at an angle to the first direction. Airflow flows from the dust suction port 102 through the dust suction chamber 101 into the air extraction pipe 300 to form a dust suction airflow. It can be understood that during the laser scribing process, the entire dust removal structure moves along the first direction, and the laser used for scribing also moves in a stepping motion along the first direction. By providing an opening 103 in the direction of movement of the dust removal structure, [reference needed] Figure 3 As shown, during the dust collection process, the added opening 103 makes the airflow from the dust collection chamber 101 to the exhaust pipe 300 more stable. There is basically no turbulence or eddies in the entire dust collection chamber 101. The stable airflow has good dust collection ability, thereby improving the dust collection ability of the dust removal structure. It can also prevent dust from accumulating on the inner wall of the dust collection hood 100, especially at the junction of the inner top wall and side wall, thereby improving the dust collection effect of the dust removal structure and ensuring that all the dust generated during the scribing process is sucked away, which is conducive to improving the manufacturing yield of the battery module.

[0040] Example 2:

[0041] refer to Figure 5 and Figure 6 As shown, the dust removal structure in this embodiment is based on the dust removal structure disclosed in Embodiment 1, with the addition of auxiliary structures to increase the flexibility and dust collection capacity of the dust removal structure.

[0042] refer to Figure 6 As shown, the dust removal structure also includes a side sealing plate 200, which is detachably installed at one end of the dust collection hood 100 where the opening 103 is provided, and is used to adjust the size of the opening 103. It is understood that, according to airflow simulation images, in actual operation, the size of the opening 103 will affect the flow direction of the suction airflow within the suction chamber 101. In this embodiment, a side sealing plate 200 is added to adjust the size of the opening 103. A suitable side sealing plate 200 can be selected based on the actual simulation results to further improve the stability of the suction airflow inside the suction chamber 101, thereby further improving the dust collection capacity of the dust removal structure.

[0043] Further optional, see reference Figure 6 As shown, the side sealing plate 200 has a window 210 communicating with the opening 103. It is understandable that in the actual assembly process, side sealing plates 200 with different windows 210 are installed on the dust cover 100 to adjust the size of the opening 103. This method is more convenient and helps to simplify the operation.

[0044] Further optional, see reference Figure 6As shown, the side sealing plate 200 is connected to the dust cover 100 by four fixing screws 400, which are located at the four corners of the side sealing plate 200. Using fixing screws 400 to install the side sealing plate 200 to the dust cover 100 simplifies the installation and removal of the side sealing plate 200 and improves the connection stability between the side sealing plate 200 and the dust cover 100. It should be noted that in other embodiments of this invention, the side sealing plate 200 can also be connected by other detachable methods such as snap-fit ​​connections or fixing pin connections, and is not limited to the fixing screws 400 used in this embodiment.

[0045] refer to Figure 6 As shown, the dust hood 100 includes an upper sealing plate 110 and a lower sealing plate 120, which together form a dust suction chamber 101. The upper sealing plate 110 includes a top plate 111, two first side plates 112 and two second side plates 113. One of the two first side plates 112 has an opening 103, and the other first side plate 112 is connected to the air extraction pipe 300 by a connecting bolt 700. The two second side plates 113 are respectively connected to the lower sealing plate 120. It is understandable that by providing an opening 103 on one first side plate 112 and connecting the other first side plate 112 to the suction pipe 300 via connecting bolts 700, it is possible to ensure that the opening 103 and the connection between the dust collection hood 100 and the suction pipe 300 are on the same axis. This arrangement helps to improve the stability of the suction airflow from the dust collection chamber 101 to the suction pipe 300, thereby further avoiding turbulence or eddies within the dust collection chamber 101. A stable suction airflow has better dust collection ability. Of course, in other embodiments of this utility model, the first side plate 112 can also be attached to the suction pipe 300 by snap-fit ​​or direct welding. In addition, installing the lower sealing plate 120 on the two second side plates 113 can improve the installation stability of the lower sealing plate 120. It should be noted that in this embodiment, there are two lower sealing plates 120, with one lower sealing plate 120 installed on each second side plate 113. The dust collection port 102 is formed by the two first side plates 112 and the two second side plates 113. Of course, in an alternative embodiment, the lower sealing plate 120 can also be a U-shaped plate, with its two vertical sections connected to two second side plates 113 respectively, and a dust suction port 102 provided on the horizontal part of the U-shaped plate. In the actual assembly process, either a flat lower sealing plate 120 or a U-shaped lower sealing plate 120 can be selected according to actual needs.

[0046] Optionally, the lower sealing plate 120 is adjustablely mounted on the upper sealing plate 110 along the second direction to adjust the volume of the suction chamber 101. It is understood that in actual operation, the required adsorption force varies for battery components of different sizes or with different processing requirements. In this embodiment, the lower sealing plate 120 is adjustablely mounted on the upper sealing plate 110 along the second direction to adjust the volume of the suction chamber 101. In actual operation, the position of the lower sealing plate 120 relative to the upper sealing plate 110 can be adjusted according to actual needs, thereby adjusting the volume of the suction chamber 101 and improving the compatibility of the dust removal structure.

[0047] Optionally, the lower sealing plate 120 is provided with a strip-shaped hole 121 extending along the second direction, and the second side plate 113 of the upper sealing plate 110 is provided with a mounting hole 104 corresponding to the strip-shaped hole 121; the mounting member 500 passes through the strip-shaped hole 121 and is fixed to the mounting hole 104 to fix the lower sealing plate 120 onto the upper sealing plate 110. It can be understood that when adjustment is required, the mounting member 500 is operated to allow the lower sealing plate 120 to move relative to the upper sealing plate 110 in the second direction. Then, the position of the lower sealing plate 120 in the second direction is adjusted according to actual needs. After adjustment, the mounting member 500 is operated again to lock the lower sealing plate 120 onto the upper sealing plate 110. This adjustment method, using the strip-shaped hole 121 in conjunction with the mounting member 500, facilitates the adjustment of the lower sealing plate 120 and user operation.

[0048] Optionally, a mounting nut 600 is embedded in the mounting hole 104, and the mounting component 500 is a mounting bolt that mates with the mounting nut 600. Understandably, during actual adjustment, when adjustment is needed, the mounting bolt is loosened, causing the head of the mounting bolt to disengage from the lower sealing plate 120, allowing it to move relative to the upper sealing plate 110 in the second direction. Then, the position of the lower sealing plate 120 in the second direction is adjusted according to actual needs. After adjustment, the mounting bolt is tightened again, so that the head of the mounting bolt locks the lower sealing plate 120 onto the upper sealing plate 110. This adjustment structure, using a mounting bolt and mounting nut 600, facilitates adjustment.

[0049] Of course, in an alternative embodiment of this utility model, the strip hole 121 can be provided on the second side plate 113 of the upper sealing plate 110, and the mounting hole 104 can be provided on the lower sealing plate 120. Furthermore, in other embodiments of this utility model, the adjustment structure can also be a combination of a groove and a slider. Specifically, a groove extending in a second direction is provided on one of the lower sealing plate 120 and the second side plate 113, and a slider that fits into the groove is provided on the other. Adjustment is made by adjusting the position of the slider within the groove. After adjustment, the lower sealing plate 120 is fixed to the second side plate 113 by a fixing pin or other fixing method.

[0050] Example 3:

[0051] refer to Figure 7 As shown, the dust removal structure of this embodiment is basically the same as that of embodiment two. The difference is that the side sealing plate 200 of this embodiment does not have a window 210, but directly blocks part of the opening 103. In actual operation, different sizes of side sealing plates 200 can be selected and installed on the dust collection hood 100 according to actual needs, so as to adjust the size of the opening 103.

[0052] Example 4:

[0053] refer to Figure 8 As shown, the dust removal structure in this embodiment is basically the same as that in Embodiment 2. The difference is that the side sealing plate 200 in this embodiment does not have a window 210. The side sealing plate 200 is used to open in the opposite direction along the second direction to adjust the size of the opening 103. This arrangement can keep the dust away from the object being adsorbed, avoiding interference with the surface of the battery process components, thereby helping to ensure the battery manufacturing yield.

[0054] Example 5:

[0055] refer to Figures 9-10 As shown, the dust removal structure in this embodiment has an arc-shaped sealing plate 110, which includes an arc panel 114, a first side plate 112 and two second side plates 113. The first side plate 112 is used to connect to the exhaust pipe 300. An opening 103 is provided on the end of the arc panel 114. The two second side plates 113 are respectively connected to the arc panel 114 and the first side plate 112.

[0056] Example 5:

[0057] This utility model also discloses a dust removal device, including an installation mechanism and the aforementioned dust removal structure. The dust removal structure is installed on the installation mechanism, and the suction port 102 is arranged parallel to the surface of the grooved panel. The installation mechanism is used to drive the dust removal structure to move along a first direction. It can be understood that, in addition to the suction port 102 arranged perpendicular to the direction of movement of the dust removal structure, the dust removal structure also has an opening 103 parallel to the direction of movement of the dust removal structure. During the dust removal process, the added opening 103 allows the airflow from the suction chamber 101 to the extraction pipe 300 to be relatively stable. There is essentially no turbulence or eddies within the entire suction chamber 101. The stable airflow has good dust removal capacity, thereby improving the dust removal capacity of the dust removal structure and ensuring that all dust generated during the scribing process is removed, which is beneficial to improving the manufacturing yield of the battery module.

[0058] It should be noted that grooved panels can be glass used in the battery manufacturing process, or panels that require a grooving process.

[0059] Optionally, when the dust removal structure is working, the distance between the surface of the dust suction hood 100 and the surface of the dust suction port 102 and the grooved panel is controlled at 3cm-10cm. This ensures that the negative pressure above the grooved panel is sufficient to suck away the scribing dust without lifting the grooved panel, and also reduces airflow disturbance that causes the grooved panel to shake. This ensures that the dust generated by laser scribing is completely removed.

[0060] Optionally, the extraction duct 300 connected to the dust removal structure includes a first pipe section 310 and a second pipe section 320 connected together. The first pipe section 310 and the second pipe section 320 are arranged at an angle, and the first pipe section 310 extends along a first direction. It is understood that the first pipe section 310 extends along the first direction, and the second pipe section 320 forms an angle with the first pipe section 310. This way, during actual operation, dust entering the extraction duct 300 is less likely to fall directly back into the dust collection hood 100 under its own gravity, thereby improving the dust removal effect.

[0061] In the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model and are not intended to limit the implementation of this utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A dust removal structure, characterized in that, The system includes a dust collection hood (100) having a dust collection chamber (101). One end of the dust collection chamber (101) along a first direction is connected to an air extraction pipe (300), and the other end is provided with an opening (103). The dust collection chamber (101) also has a dust collection port (102) opening towards a second direction, which is at an angle to the first direction. Airflow flows from the dust collection port (102) through the dust collection chamber (101) into the air extraction pipe (300) to form a dust collection airflow. The opening (103) is used to stabilize the dust collection airflow to reduce turbulence or eddies in the dust collection chamber (101). During the laser scribing process, the dust removal structure moves along the first direction.

2. The dust removal structure according to claim 1, characterized in that, The dust removal structure also includes a side sealing plate (200), which is detachably installed on one end of the dust hood (100) where the opening (103) is provided, and is used to adjust the size of the opening (103).

3. The dust removal structure according to claim 2, characterized in that, The side panel (200) has a window (210) communicating with the opening (103); or, the side panel (200) is used to partially cover the opening (103); or, the side panel (200) is used to open in the opposite direction in a second direction to adjust the size of the opening (103).

4. The dust removal structure according to any one of claims 1-3, characterized in that, The dust hood (100) includes an upper sealing plate (110) and a lower sealing plate (120), which together form the dust suction chamber (101).

5. The dust removal structure according to claim 4, characterized in that, The upper sealing plate (110) includes a top plate (111), two first side plates (112) and two second side plates (113). One of the two first side plates (112) is provided with the opening (103), and the other first side plate (112) is connected to the air extraction pipe (300). The two second side plates (113) are respectively connected to the lower sealing plate (120). or: The upper sealing plate (110) includes an arc panel (114), a first side plate (112) and two second side plates (113). The arc panel (114) has an opening (103) at the end opposite to the first side plate (112). The first side plate (112) is connected to the air extraction pipe (300), and the two second side plates (113) are respectively connected to the lower sealing plate (120).

6. The dust removal structure according to claim 4, characterized in that, The lower sealing plate (120) is adjustablely mounted on the upper sealing plate (110) along the second direction to adjust the volume of the dust suction chamber (101).

7. The dust removal structure according to claim 6, characterized in that, One of the sidewalls of the lower sealing plate (120) and the upper sealing plate (110) is provided with a strip hole (121) extending along the second direction, and the other is provided with a mounting hole (104) corresponding to the strip hole (121); The mounting component (500) passes through the strip hole (121) and is fixed to the mounting hole (104) to fix the lower sealing plate (120) onto the upper sealing plate (110).

8. The dust removal structure according to claim 7, characterized in that, An installation nut (600) is embedded in the mounting hole (104), and the mounting component (500) is an installation bolt that mates with the installation nut (600).

9. A dust removal device, characterized in that, The device includes an installation mechanism and a dust removal structure as described in any one of claims 1-8, wherein the dust removal structure is installed on the installation mechanism and the dust suction port (102) is arranged parallel to the surface of the grooved panel, and the installation mechanism is used to drive the dust removal structure to move along a first direction.

10. The dust removal device according to claim 9, characterized in that, The exhaust pipe (300) connected to the dust removal structure includes a first pipe section (310) and a second pipe section (320) connected together. The first pipe section (310) and the second pipe section (320) are arranged at an angle, and the first pipe section (310) extends along the first direction.

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