Solar cell sorting device

Abstract

The utility model relates to a solar cell sorting device which comprises a material box used for containing solar cells, a conveying mechanism used for conveying the solar cells and a material taking mechanism used for transferring the solar cells from the conveying mechanism to the material box. The multiple adsorption holes are formed in the adsorption piece at intervals, so that the multiple adsorption holes can be adsorbed to different areas of the same solar cell, the contact uniformity with the solar cell is guaranteed, the adsorption effect on the solar cell is guaranteed, and meanwhile the adsorption efficiency of the solar cell is improved. The risk of solar cell damage caused by slippage of the solar cells in the adsorption process is reduced, the reject ratio of the solar cells is reduced, and then the production efficiency of the photovoltaic module is improved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic technology, and in particular to a solar cell sorting device. Background Art

[0002] Photovoltaic modules are devices that directly convert light energy into electrical energy through the photoelectric or photochemical effect. Solar cells are the main components of photovoltaic modules, and the integrity of the solar cell surface affects the cell's power generation performance.

[0003] In the related art, the surface of solar cells is easily damaged when they are sorted, which affects the production efficiency of photovoltaic modules. Utility Model Content

[0004] Based on this, it is necessary to provide a solar cell sorting device to address the problem that the existing solar cell sorting device is prone to damage the solar cells.

[0005] A solar cell sorting device, comprising:

[0006] A material box, wherein the material box is used to place solar cells;

[0007] A conveying mechanism, wherein the conveying mechanism and the material box are arranged in a longitudinal direction, the conveying mechanism is used to convey the solar cell sheets, and the longitudinal direction is perpendicular to the conveying direction of the conveying mechanism;

[0008] The material picking mechanism can be located above the conveying mechanism to transfer the solar cell from the conveying mechanism to the material box; the material picking mechanism includes a vacuum generator and a suction member connected to the vacuum generator, and the suction member is provided with a plurality of adsorption holes for adsorbing the solar cell at intervals, and the plurality of adsorption holes are respectively used to adsorb different areas of the same solar cell.

[0009] In one embodiment, the suction member includes a suction cup base and a plurality of anti-wear pads connected to the suction cup base; each of the anti-wear pads is provided with at least one adsorption hole.

[0010] In one embodiment, each of the anti-wear pads is provided with a plurality of adsorption holes, and the plurality of adsorption holes are distributed in an array.

[0011] In one embodiment, a plurality of anti-wear pad arrays are distributed on the suction cup base.

[0012] In one embodiment, the suction member includes a suction cup base having a plurality of concentric virtual circles with different radii, and the plurality of suction holes are evenly distributed on the virtual circles.

[0013] In one embodiment, the suction member includes a suction cup base having a plurality of concentric virtual rectangles with different side lengths, and the plurality of suction holes are evenly distributed on the virtual rectangles.

[0014] In one embodiment, the transmission mechanism is provided in at least two groups, and a plurality of the transmission mechanisms are arranged at intervals along the longitudinal direction;

[0015] At least two groups of the material taking mechanisms are provided, and the plurality of the material taking mechanisms are arranged at intervals along the longitudinal direction, and each of the material taking mechanisms is corresponding to sucking the battery cell of one of the transmission mechanisms.

[0016] In one embodiment, the material boxes are arranged in at least two rows along the conveying direction; at least two suction members are arranged in at least two rows along the conveying direction; and each suction member is arranged corresponding to one material box.

[0017] In one embodiment, the solar cell sorting device further includes a first detection element for detecting the color grade of the solar cell.

[0018] In one embodiment, the solar cell sorting device further includes a second detection component for detecting the efficiency level of the solar cell.

[0019] The above-mentioned solar cell sorting device includes a material box, a transmission mechanism and a material picking mechanism. The material picking mechanism includes a suction piece, and a plurality of adsorption holes are arranged at intervals on the suction piece. In this way, the plurality of adsorption holes can be adsorbed on different areas of the same solar cell, thereby ensuring uniform contact with the solar cell, ensuring the adsorption effect on the solar cell, and reducing the risk of damage to the solar cell due to slippage of the solar cell during the adsorption process, thereby reducing the defective rate of the solar cell and improving the production efficiency of the photovoltaic module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the solar cell sorting device provided in the first embodiment of the present application.

[0021] Figure 2 for Figure 1 A bottom view of the suction member in the solar cell sorting device is shown.

[0022] Figure 3 for Figure 2 The left side view of the suction member in the solar cell sorting device is shown.

[0023] Figure 4 This is a bottom view of a suction member in the solar cell sorting device provided in the second embodiment of the present application.

[0024] Figure 5 This is a schematic diagram of a solar cell sorting device provided in the third embodiment of the present application.

[0025] Reference numerals: 100, transmission mechanism; 200, material taking mechanism; 210, suction member; 211, adsorption hole; 212, suction cup base; 213, anti-wear pad; 300, solar cell. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0032] See Figure 1 As shown, an embodiment of the present application provides a solar cell sorting device, comprising a material box, a conveying mechanism 100 and a material picking mechanism 200, wherein the material box is used to place solar cells 300; the conveying mechanism 100 and the material box are arranged in a longitudinal direction, and the conveying mechanism 100 is used to convey the solar cells 300, wherein the longitudinal direction is perpendicular to the conveying direction of the conveying mechanism 100; the material picking mechanism 200 can be located above the conveying mechanism 100 to transfer the solar cells 300 from the conveying mechanism 100 to the material box; the material picking mechanism 200 comprises a vacuum generator (not shown) and a suction member 210 connected to the vacuum generator, wherein the suction member 210 is provided with a plurality of suction holes 211 for adsorbing the solar cells 300 at intervals, and the plurality of suction holes 211 are respectively used to adsorb different areas of the same solar cell 300. The conveying direction is Figure 1The left and right directions in the viewing angle are vertical. Figure 1 The front-to-back direction of view.

[0033] The above-mentioned solar cell sorting device has multiple adsorption holes 211 spaced apart on the suction member 210. In this way, the multiple adsorption holes 211 can be adsorbed on different areas of the solar cell 300, thereby ensuring uniform contact with the solar cell 300. While ensuring the adsorption effect on the solar cell 300, it reduces the risk of damage to the solar cell 300 caused by slipping of the solar cell 300 during the adsorption process, reduces the defective rate of the solar cell 300, and thereby improves the production efficiency of the photovoltaic module.

[0034] like Figure 1 As shown, in this embodiment, the suction member 210 can be arranged above the transmission mechanism 100. After the suction member 210 absorbs the solar cell 300, the suction member 210 moves longitudinally to the top of the material box, thereby placing the solar cell 300 into the material box. Of course, in other embodiments, the suction member can also be arranged on the side of the transmission mechanism, for example, above the material box, so that the suction member first moves longitudinally to the top of the transmission mechanism and then transfers the solar cell to the material box position. The transmission mechanism 100 can be a conveyor belt or a transmission track, the suction member 210 can specifically be a suction cup, and the vacuum generator can be a vacuum pump, which provides negative pressure suction to the suction cup.

[0035] See Figure 2 and Figure 3 As shown, in one embodiment, the suction member 210 includes a suction cup base 212 and multiple anti-wear pads 213 connected to the suction cup base 212; each anti-wear pad 213 is defined by at least one suction hole 211. In other words, the suction member 210 contacts the solar cell 300 via the anti-wear pads 213. The anti-wear pads 213 can be made of a soft material such as rubber to reduce the possibility of wear on the solar cell 300 when the suction member 210 absorbs the solar cell 300. In other embodiments, the anti-wear pads 213 can be made of a wear-resistant material such as ceramic, thereby extending the service life of the suction member 210.

[0036] See Figure 2 and Figure 3 As shown, in one embodiment, each anti-wear pad 213 is provided with a plurality of adsorption holes 211, and the plurality of adsorption holes 211 are distributed in an array. By providing multiple adsorption holes 211 on each anti-wear pad 213, while preventing wear on the solar cell 300, the distribution range of the adsorption area on the solar cell 300 can be increased, thereby ensuring the adsorption effect of the suction member 210 on different areas of the solar cell 300 and reducing the risk of the solar cell 300 slipping during transfer.

[0037] See Figure 2 and Figure 3 As shown, in one embodiment, a plurality of anti-wear pads 213 are distributed in an array on the suction cup base 212. Specifically, the plurality of anti-wear pads 213 are distributed in a rectangular array to increase the uniformity of the distribution of the adsorption areas on the solar cell 300, thereby ensuring the adsorption effect on different areas of the solar cell 300 and preventing the solar cell 300 from slipping. In other embodiments, the plurality of anti-wear pads 213 can also be distributed in a circular array.

[0038] See Figure 4 As shown, in one embodiment, the suction member 210 includes a suction cup base 212 having multiple concentric virtual circles of varying radii, with the multiple suction holes 211 evenly spaced along the virtual circles. Providing multiple suction holes 211 on the suction cup base 212 increases the distribution of the suction area on the solar cell 300, thereby ensuring the suction member 210's ability to effectively absorb different areas of the solar cell 300 and reducing the risk of the solar cell 300 slipping during transfer.

[0039] The size of the suction cup base 212 can be adapted to the size of the solar cell 300. Since the solar cell 300 is generally a square structure, the suction cup base 212 can also be configured in a square shape accordingly, so that it has a larger contact area with the solar cell 300, ensuring the suction effect and reducing the possibility of the solar cell 300 slipping during the transfer process.

[0040] In other embodiments, the suction cup base 212 has multiple concentric virtual rectangles with different side lengths, and the multiple adsorption holes 211 are evenly spaced on the virtual rectangles, which can also ensure the adsorption effect of the suction member 210 on different areas of the solar cell 300 and reduce the risk of slippage of the solar cell 300 during the transfer process.

[0041] See Figure 1 As shown, in one embodiment, the conveying mechanism 100 is provided in at least two groups, with multiple conveying mechanisms 100 arranged at intervals along the longitudinal direction; the picking mechanism 200 is provided in at least two groups, with multiple picking mechanisms 200 arranged at intervals along the longitudinal direction, with each picking mechanism 200 corresponding to the solar cell of the conveying mechanism 100. Taking the conveying mechanism 100 and the picking mechanism 200 as two groups as an example, the two groups of conveying mechanisms 100 can simultaneously convey two solar cells 300, and the two picking mechanisms 200 can simultaneously pick up two solar cells 300 and place them into corresponding material boxes, thereby improving sorting efficiency.

[0042] The two sets of transmission mechanisms 100 can be driven by pulse stepping motors to ensure that the two solar cells 300 being transported are positioned in the same direction of transport, providing position consistency for the subsequent picking mechanism 200 to absorb the cells.

[0043] See Figure 5 As shown, in one embodiment, the magazines are arranged in at least two rows along the conveying direction; at least two suction members 210 are arranged at intervals along the conveying direction; and each suction member 210 corresponds to one magazine. The spacing between two adjacent magazines is the same as the spacing between two adjacent solar cells 300 on the conveying mechanism 100. This allows two suction members 210 to simultaneously absorb the cells on the conveying mechanism 100 and, after moving the same distance, place the two cells simultaneously into two adjacent magazines, thereby improving the efficiency of the automatic sorting machine.

[0044] In other embodiments, cells of the same grade are placed in the boxes in the same column, and cells of different grades are placed in the boxes in different columns, that is, each column of boxes corresponds to a grade of cells. The grades mentioned here include efficiency grades or color grades of the cells, etc.

[0045] In one embodiment, the solar cell sorting device further includes a first detection element (not shown) for detecting the color grade of the solar cells. The first detection element detects the solar cell image, obtains the solar cell color data, and generates a sorting signal. The solar cells are then sorted and classified based on the received sorting signal. This allows for convenient and rapid color classification of the solar cells, and has advantages and features such as a simple structure, ease of use, and reliable and accurate detection data. This reduces manual contact with the silicon wafers, avoids human contamination of the silicon wafers, and prevents visual misjudgment, thereby improving sorting efficiency. The first detection element includes a color camera and a light source. The light source is used to illuminate the solar cell, and the color camera is used to capture images of the solar cell's appearance.

[0046] In one embodiment, the solar cell sorting device further includes a second detection element (not shown) for detecting the efficiency level of the solar cell. This second detection element can be a photoluminescence tester, comprising a light source and a camera. The light source is used to illuminate the solar cell, and the camera is used to capture a photoluminescence image of the solar cell to determine the efficiency level of the solar cell. This allows for non-contact testing of the solar cell, avoiding inaccurate test results caused by poor contact, damage to the solar cell caused by contact, and reducing the use of contact probes. This helps improve the accuracy of testing and sorting, while reducing sorting costs.

[0047] In some embodiments, the solar cell sorting device further includes a conveyor belt (not shown) for transporting boxes. Each box contains a fixed number of solar cells. When the number of solar cells in a box reaches a set value, the box is considered full. The box-full of solar cells is removed by the box-conveyor belt, and the empty box is transported to a vacant location.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A solar cell sorting device, characterized in that: The solar cell sorting device comprises: A material box, the material box being used to place solar cell sheets (300); A transmission mechanism (100), the transmission mechanism (100) and the material box are arranged in a longitudinal direction, the transmission mechanism (100) is used to transmit the solar cell (300), and the longitudinal direction is perpendicular to the transmission direction of the transmission mechanism (100); A material taking mechanism (200) can be located above the transmission mechanism (100) to transfer the solar cell (300) from the transmission mechanism (100) to the material box; the material taking mechanism (200) includes a vacuum generator and a suction member (210) connected to the vacuum generator, and the suction member (210) is provided with a plurality of suction holes (211) for adsorbing the solar cell (300) at intervals, and the plurality of suction holes (211) are respectively used to adsorb different areas of the same solar cell (300).

2. The solar cell sorting device according to claim 1, characterized in that: The suction member (210) comprises a suction cup base (212) and a plurality of anti-wear pads (213) connected to the suction cup base (212); each of the anti-wear pads (213) is provided with at least one suction hole (211).

3. The solar cell sorting device according to claim 2, characterized in that: Each of the anti-wear pads (213) is provided with a plurality of adsorption holes (211), and the plurality of adsorption holes (211) are distributed in an array.

4. The solar cell sorting device according to claim 3, characterized in that: A plurality of anti-wear pads (213) are distributed in an array on the suction cup base (212).

5. The solar cell sorting device according to claim 1, characterized in that: The suction member (210) comprises a suction cup base (212), wherein the suction cup base (212) has a plurality of concentric virtual circles with different radii, and the plurality of adsorption holes (211) are evenly spaced on the virtual circles.

6. The solar cell sorting device according to claim 1, characterized in that: The suction member (210) comprises a suction cup base (212), wherein the suction cup base (212) has a plurality of concentric virtual rectangles with different side lengths, and the plurality of suction holes (211) are evenly distributed on the virtual rectangles at intervals.

7. The solar cell sorting device according to claim 1, characterized in that: The transmission mechanism (100) is provided in at least two groups, and a plurality of the transmission mechanisms (100) are arranged at intervals along the longitudinal direction; At least two groups of the material taking mechanisms (200) are provided, and a plurality of the material taking mechanisms (200) are arranged at intervals along the longitudinal direction, and each of the material taking mechanisms (200) correspondingly takes in the battery cell of one of the transmission mechanisms (100).

8. The solar cell sorting device according to claim 1, characterized in that: The material boxes are arranged in at least two rows at intervals along the transmission direction; at least two suction members (210) are arranged at intervals along the transmission direction; and each suction member (210) is arranged corresponding to one material box.

9. The solar cell sorting device according to claim 8, characterized in that: The solar cell sorting device further comprises a first detection element for detecting the color grade of the solar cell (300).

10. The solar cell sorting device according to claim 8, characterized in that: The solar cell sorting device further comprises a second detection component for detecting the efficiency level of the solar cell (300).

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