Adsorption device and thin film solar cell production equipment

Abstract

The embodiment of the utility model provides an adsorption device and thin-film solar cell production equipment, and relates to the technical field of thin-film solar cells, and the adsorption device comprises an adsorption plate which is provided with a plurality of adsorption holes and is used for adsorbing a workpiece penetrating through the surface of the adsorption plate; the adsorption assembly comprises an adsorption mechanism and a first driving mechanism, the adsorption mechanism is arranged below the adsorption plate, the first driving mechanism is used for driving the adsorption mechanism to move in the conveying direction of the workpieces, and the adsorption mechanism conducts negative pressure adsorption on the workpieces through the adsorption holes. And the workpiece is attached to the adsorption plate. In the embodiment of the invention, the first driving structure can drive the adsorption mechanism to move in the conveying direction of the workpiece, the adsorption acting force of the adsorption mechanism on the workpiece can be guaranteed, the workpiece and the adsorption plate can be kept attached, and thus the probability that the workpiece falls off from the adsorption plate can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of thin-film solar cells, and particularly relates to an adsorption device and a thin-film solar cell production equipment. BACKGROUND

[0002] In the process of manufacturing a thin-film solar cell module, laser scribing runs through the entire manufacturing process and is an essential part of forming internal series connection of the cell module.

[0003] In the related art, laser scribing has the advantages of high precision and fast speed, but the workpiece subjected to laser scribing is mostly made of rigid material, and there is no need to consider the curling and wrinkling of the workpiece. In the process of using a thin film, curling and wrinkling of the thin film itself can cause the laser scribing machine to fail to focus and scribe effectively, thereby affecting the precision and effect of laser scribing. In order to solve the problem of curling and wrinkling of the thin film, the related art proposes an adsorption device, which includes an adsorption table and a vacuum pump. The adsorption table includes an adsorption plate provided with a plurality of adsorption holes. The vacuum pump is in fluid communication with each adsorption hole and creates a negative pressure environment on the adsorption plate through the vacuum pump to adsorb the thin film on the adsorption plate, thereby reducing the curling and wrinkling of the thin film. However, the adsorption effect of the adsorption device is not significant, and the thin film is prone to falling off. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an adsorption device and a thin-film solar cell production equipment, which can adsorb a workpiece on an adsorption plate and reduce the possibility of the workpiece falling off the adsorption plate.

[0005] An adsorption device provided by an embodiment of the present application includes:

[0006] An adsorption plate is provided with a plurality of adsorption holes, and the adsorption plate is used to adsorb a workpiece passing through the surface thereof;

[0007] An adsorption assembly includes an adsorption mechanism and a first driving mechanism. The adsorption mechanism is arranged below the adsorption plate. The first driving mechanism is used to drive the adsorption mechanism to move along the conveying direction of the workpiece. The adsorption mechanism performs negative pressure adsorption on the workpiece through the adsorption holes, so that the workpiece is attached to the adsorption plate.

[0008] Further, a plurality of adsorption holes are arranged in an array on the adsorption plate.

[0009] Further, the adsorption mechanism includes a vacuum pump. The vacuum pump is connected with the first driving mechanism, and the output end of the vacuum pump is arranged towards the adsorption plate.

[0010] Further, the first driving mechanism comprises a first driving member, a first transmission structure and a first conveying belt, the first driving member drives the first transmission structure to drive the first conveying belt to move.

[0011] Further, a working room is further included, the working room is covered on the adsorption plate, and the working room and the adsorption plate enclose a conveying channel for the workpiece to pass through.

[0012] Further, a conveying mechanism is further included, one end of the conveying mechanism is connected with the adsorption plate, a conveying plane of the conveying mechanism is flush with the upper surface of the adsorption plate, and the conveying mechanism is used for conveying the workpiece.

[0013] Further, the conveying mechanism comprises a second driving member, a second transmission structure and a second conveying belt, the second driving member drives the second transmission structure to drive the second conveying belt to move.

[0014] Further, the conveying mechanism further comprises a baffle, the baffle is arranged on at least one side of the second conveying belt along the conveying direction.

[0015] Further, a conveying table and a universal wheel assembly are further included, the universal wheel assembly is arranged on the conveying table, and the second driving member, the second transmission structure and the second conveying belt are installed on the conveying table.

[0016] Another aspect of the present application provides a thin-film solar cell production device, which comprises the adsorption device as described above.

[0017] From the above technical solutions, the embodiments of the present application have at least the following beneficial effects:

[0018] The adsorption device provided by the present application is used for adsorbing workpieces. When the workpieces are conveyed to the adsorption plate, the adsorption mechanism can adsorb the workpieces through the adsorption holes. During the movement of the workpieces on the adsorption plate, the first driving structure can drive the adsorption mechanism to move along the conveying direction of the workpieces, so as to ensure the adsorption force of the adsorption mechanism on the workpieces, thereby facilitating the workpieces to keep adhering to the adsorption plate. In this way, the situation that the workpieces fall off the adsorption plate can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0020] Figure 1A structural schematic diagram of an adsorption device provided by an embodiment of the present application is shown in FIG. 1.

[0021] Figure 2 A structural schematic diagram of an adsorption assembly in an adsorption device provided by an embodiment of the present application is shown in FIG. 2.

[0022] Figure 3 A structural schematic diagram of a second driving mechanism in an adsorption device provided by an embodiment of the present application is shown in FIG. 3.

[0023] Figure 4 A structural schematic diagram of a first driving mechanism in an adsorption assembly provided by an embodiment of the present application is shown in FIG. 4. Figure 1 A partial enlarged structural schematic diagram of part A in FIG. 4 is shown in FIG. 5. A partial enlarged structural schematic diagram of part B in FIG. 4 is shown in FIG. 6.

[0024] A partial enlarged structural schematic diagram of part B in FIG. 4 is shown in FIG. 6. Figure 5 A partial enlarged structural schematic diagram of part B in FIG. 4 is shown in FIG. 6. Figure 1 A partial enlarged structural schematic diagram of part B in FIG. 4 is shown in FIG. 6.

[0025] Reference signs:

[0026] 100, adsorption table; 110, adsorption plate; 111, adsorption hole; 120, first support plate; 140, workroom;

[0027] 200, adsorption assembly; 210, adsorption mechanism; 221, first driving member; 222, first transmission structure; 223, first conveying belt;

[0028] 300, conveying mechanism; 310, second support plate; 320, second driving structure; 321, second driving member; 322, second transmission structure; 323, second conveying belt; 330, baffle; 340, universal wheel; 350, mounting block; 360, rotating shaft;

[0029] 410, mounting bracket; 420, operating table; 421, display screen. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described 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 of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0031] Referring to FIG. 1, Figure 1 An aspect of the embodiments of the present application discloses an adsorption device for adsorbing a workpiece. The adsorption device comprises an adsorption plate 110 and an adsorption assembly 200.

[0032] Specifically, the adsorption plate 110 is provided with a plurality of adsorption holes 111, and the adsorption plate 110 is used to adsorb the workpiece passing through the surface thereof; the adsorption assembly 200 comprises an adsorption mechanism 210 and a first driving mechanism, the adsorption mechanism 210 is arranged below the adsorption plate 110, and the first driving mechanism is used to drive the adsorption mechanism 210 to move along the conveying direction of the workpiece; the adsorption mechanism 210 adsorbs the workpiece through the adsorption holes 111 to make the workpiece adhere to the adsorption plate 110.

[0033] In the embodiment, when the workpiece is conveyed to the adsorption plate 110, the adsorption mechanism 210 can adsorb the film through the adsorption holes 111. When the workpiece moves on the adsorption plate 110, the first driving mechanism can drive the adsorption mechanism 210 to move along the conveying direction of the workpiece, so as to ensure the adsorption force of the adsorption mechanism 210 on the front part of the workpiece, and facilitate the workpiece to adhere to the adsorption plate 110. In this way, the situation that the workpiece falls off the adsorption plate 110 can be reduced.

[0034] In the embodiment, the workpiece is specifically a thin-film solar cell. In the embodiment, the thin-film solar cell is taken as an example for illustrative description.

[0035] It should be understood that the adsorption device in the embodiment can also be used to adsorb other thin-film products, sheet products and the like, which are not limited herein.

[0036] In some adsorption devices, a plurality of adsorption holes 111 are arranged on the adsorption plate 110 and are in communication with each other, and then a vacuum pump is connected to each adsorption hole 111 through a pipeline to realize fluid communication. In this way, the vacuum pump can generate a negative pressure on the adsorption holes 111 to adsorb the workpiece near the adsorption holes 111. However, in this adsorption device, the negative pressure of the vacuum pump is distributed to the plurality of adsorption holes 111 at the same time, which reduces the adsorption force of each adsorption hole 111, so that the workpiece can overcome the adsorption force of the adsorption hole 111 to separate from the adsorption plate 110, and then the workpiece is prone to warping and wrinkling.

[0037] In the embodiment, the adsorption mechanism 210 can move relative to the adsorption plate 110. When the thin-film solar cell passes through the adsorption plate 110, the first driving mechanism can drive the adsorption mechanism 210 to move in the same direction as the thin-film solar cell, and the adsorption mechanism 210 can adsorb the thin-film solar cell through the adsorption holes 111 near the adsorption mechanism 210 during the movement of the adsorption mechanism 210. Since the adsorption force of the adsorption mechanism 210 is distributed to part of the adsorption holes 111, the adsorption device in the embodiment can effectively increase the adsorption force of each adsorption hole 111 on the thin-film solar cell in the adsorption mechanism 210 with the same adsorption force, so that the probability of the thin-film solar cell separating from the adsorption plate 110 can be reduced.

[0038] It is worth understanding that in the conveying process of the thin-film solar cell, the thin-film solar cell is prone to warping at the front section along the conveying direction. In the embodiment of the present application, the adsorption device adsorbs the thin-film solar cell, so that the thin-film solar cell is attached to the adsorption plate 110. Because the thin-film solar cell is attached to the adsorption plate 110, the gap between the thin-film solar cell and the adsorption plate 110 is reduced, and at the same time, the air pressure on the side of the thin-film solar cell close to the adsorption plate 110 is less than the air pressure on the side of the thin-film solar cell away from the adsorption plate 110, so that it is also beneficial to attach the subsequent thin-film solar cell to the adsorption plate 110.

[0039] Referring to Figure 1 In some embodiments of the present application, a plurality of adsorption holes 111 are arranged in an array on the adsorption plate 110. Specifically, each adsorption hole 111 is arranged in a rectangular array on the adsorption plate 110. In this way, the force on the thin-film solar cell by the adsorption point can be kept relatively stable during the conveying process, and the warping or wrinkling of the thin-film solar cell caused by changes in the force on the thin-film solar cell can be reduced.

[0040] In some embodiments of the present application, the adsorption mechanism 210 includes a vacuum pump, the vacuum pump is connected with the first driving mechanism, and the output end of the vacuum pump is arranged towards the adsorption plate 110. In this way, the vacuum pump can adsorb the area below the adsorption plate 110 to reduce the air pressure below the adsorption plate 110, thereby creating a negative pressure adsorption effect in the adsorption hole 111, so that the adsorption hole 111 near the output end of the vacuum pump can adsorb the thin-film solar cell.

[0041] Referring to Figure 1 and Figure 2 In some embodiments of the present application, the first driving mechanism includes a first driving member 221, a first transmission structure 222, and a first conveying belt 223, the first driving member 221 drives the first transmission structure 222 to drive the first conveying belt 223 to move. Under the drive of the first driving member 221, the first conveying belt 223 can realize a runway-type circular motion. In this process, the vacuum pump mounted on the first conveying belt 223 can also realize a runway-type circular motion. That is, when the output end of the vacuum pump is directed towards the adsorption plate 110, the vacuum pump can generate a negative pressure at the adsorption plate 110, and when the output end of the vacuum pump is directed away from the adsorption plate 110, the adsorption plate 110 has no adsorption effect. In this way, the vacuum pump can adsorb the thin-film solar cell at the starting section of the first conveying belt 223 and lose the adsorption of the thin-film solar cell at the end section of the first conveying belt 223, so that different thin-film solar cells can be adsorbed, and different thin-film solar cells can be attached to the adsorption plate 110 in turn.

[0042] In the above embodiment, the first conveying belt 223 drives the adsorption mechanism 210 to move in a circular motion, which can simplify the driving mode of the first conveying belt 223.

[0043] In a possible implementation, the first transmission structure 222 comprises a first gear and a rotating roller, the first conveying belt 223 is connected to the rotating roller in a matching manner, and the first driving member 221 drives the rotating roller to rotate through the first gear to drive the first conveying belt 223 to move.

[0044] In actual application, the first driving member 221 can be a motor.

[0045] In some other embodiments, the first driving mechanism can be a structure comprising a screw rod and a nut structure and a driving motor, the driving motor drives the adsorption mechanism 210 to move along the conveying direction of the thin-film solar cell through the screw rod and the nut structure.

[0046] Referring to Figure 1 In some embodiments of the present application, the adsorption mechanism 210 further comprises a working room 140, the working room 140 is arranged on the adsorption plate 110, and the working room 140 and the adsorption plate 110 enclose a conveying channel for the thin-film solar cell to pass through.

[0047] In a possible implementation, the working room 140 is provided with a laser scribing mechanism, which is used for laser scribing the thin-film solar cell passing through the adsorption plate 110. Since the thin-film solar cell can be attached to the adsorption plate, the laser scribing mechanism can be conveniently focused and scribed, which is beneficial to improving the precision and effect of laser scribing.

[0048] Referring to Figure 1 In some embodiments of the present application, the adsorption device further comprises a conveying mechanism 300, one end of the conveying mechanism 300 is connected to the adsorption plate 110, and the conveying plane of the conveying mechanism 300 is flush with the upper surface of the adsorption plate 110, the conveying mechanism 300 is used for conveying the thin-film solar cell. In working, the thin-film solar cell is placed on the conveying mechanism 300, and the thin-film solar cell is conveyed by the conveying mechanism 300. The setting of the conveying mechanism 300 can effectively improve the feeding efficiency.

[0049] Further, referring to Figure 1 and Figure 3 In some embodiments of the present application, the conveying mechanism 300 comprises a second driving structure 320, the second driving structure 320 comprises a second driving member 321, a second transmission structure 322 and a second conveying belt 323, and the second driving member 321 drives the second conveying belt 323 to move through the second transmission structure 322.

[0050] In a possible implementation, the second driving member 321 is a motor, the second transmission structure 322 comprises a second gear, the second conveying belt 323 is connected to a rotating roller in a matching manner, the second gear is connected to the rotating roller, and the motor drives the rotating roller to rotate through the second gear to drive the second conveying belt 323 to move.

[0051] In some embodiments of the present application, the conveying mechanism 300 comprises a baffle 330 arranged on at least one side of the second conveying belt 323 along the conveying direction. The baffle 330 is arranged protruding from the conveying plane of the second conveying belt 323. During the conveying of the workpiece, the baffle 330 can effectively prevent the workpiece from escaping from the conveying mechanism 300 along the two sides of the conveying direction.

[0052] In a possible implementation, the conveying mechanism 300 is provided with baffles 330 on both sides along the conveying direction. In this way, the baffles 330 on both sides can limit and guide the thin-film solar cell, so that the thin-film solar cell is smoothly conveyed to the side of the adsorption plate 110.

[0053] Referring to Figure 1 and Figure 4 In some embodiments of the present application, the adsorption device comprises a conveying table and a universal wheel assembly arranged on the conveying table. The second driving member 321, the second transmission structure 322 and the second conveying belt are mounted on the conveying table. In this way, the conveying table can be moved through the universal wheel assembly, and the position of the conveying table can be conveniently adjusted.

[0054] Referring to Figure 1 and Figure 4 In a possible implementation, the universal wheel assembly comprises a universal wheel 340, a mounting block 350 and a rotating shaft 360. The mounting block 350 is fixedly mounted on the bottom of the conveying table, and the universal wheel 340 is rotatably mounted on the mounting block 350 through the rotating shaft 360.

[0055] Referring to Figure 1 and Figure 5 As shown, in some embodiments of the present application, the adsorption device further comprises a mounting bracket 410 and an operation table 420. The mounting bracket 410 is mounted on the adsorption table 100, and the operation table is mounted on the mounting bracket 410. The operation table 420 has a display screen 421 and control buttons.

[0056] In this embodiment, the adsorption device further comprises a first support plate 120, and the first support plate 120 is mounted on the adsorption table 100. The adsorption assembly 200 is mounted on the first support plate 120.

[0057] Further, the adsorption device further comprises a conveying table and a second support plate 310, and the second support plate 310 is mounted on the conveying table. The second driving mechanism 320 is mounted on the second support plate 310.

[0058] Another aspect of the present application discloses a thin-film solar cell production equipment, which comprises the adsorption device as described above, and has all the technical effects of the adsorption device. Here, no further description is given.

[0059] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0060] The terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying a specific number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0061] In the description of the present application, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] In the description of the present application, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0063] It should be understood that although each step in the flowchart of the drawings is shown in sequence according to the direction of the arrow, these steps are not necessarily executed in sequence according to the direction of the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and they can be executed in other order. Moreover, at least part of the steps in the flowchart of the drawings can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or other steps of sub-steps or stages.

Claims

1. An adsorption device, characterized in that, include: An adsorption plate is provided with multiple adsorption holes, and the adsorption plate is used to adsorb workpieces passing through its surface; as well as An adsorption assembly includes an adsorption mechanism and a first driving mechanism. The adsorption mechanism is disposed below the adsorption plate. The first driving mechanism is used to drive the adsorption mechanism to move along the conveying direction of the workpiece. The adsorption mechanism adsorbs the workpiece under negative pressure through the adsorption holes so that the workpiece is in contact with the adsorption plate.

2. The adsorption device according to claim 1, characterized in that, Multiple adsorption pore arrays are disposed on the adsorption plate.

3. The adsorption device according to claim 1 or 2, characterized in that, The adsorption mechanism includes a vacuum pump, which is connected to the first drive mechanism, and the output end of the vacuum pump is positioned towards the adsorption plate.

4. The adsorption device according to claim 3, characterized in that, The first driving mechanism includes a first driving member, a first transmission structure, and a first conveyor belt. The first driving member drives the first transmission structure to move the first conveyor belt.

5. The adsorption device according to claim 4, characterized in that, It also includes a work area, which is covered by the adsorption plate, and the work area and the adsorption plate enclose a conveying channel for the workpiece to pass through.

6. The adsorption device according to claim 1, characterized in that, It also includes a conveying mechanism, one end of which is connected to the adsorption plate, and the conveying plane of the conveying mechanism is flush with the upper surface of the adsorption plate. The conveying mechanism is used to convey the workpiece.

7. The adsorption device according to claim 6, characterized in that, The conveying mechanism includes a second driving member, a second transmission structure, and a second conveyor belt. The second driving member drives the second conveyor belt to move through the second transmission structure.

8. The adsorption device according to claim 7, characterized in that, The conveying mechanism further includes a baffle, which is disposed on at least one side of the second conveyor belt along the conveying direction.

9. The adsorption device according to claim 7, characterized in that, It also includes a conveyor platform and a caster wheel assembly, the caster wheel assembly being disposed on the conveyor platform, wherein the second drive member, the second transmission structure and the second conveyor belt are mounted on the conveyor platform.

10. A thin-film solar cell manufacturing equipment, characterized in that, Includes the adsorption device as described in any one of claims 1 to 9.

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