Texturing device

Abstract

The utility model discloses a texturing device. The texturing device comprises a pre-cleaning tank, a texturing tank, a washing tank, a post-cleaning tank, a pickling tank and a drying tank, and the pre-cleaning tank, the texturing tank, the post-cleaning tank, the pickling tank and the drying tank are sequentially distributed in the process flow direction. And the pre-cleaning tank, the texturing tank, the post-cleaning tank and the pickling tank are correspondingly provided with the rinsing tanks. The texturing device can effectively prevent the liquid medicine from dripping on the groove cover of each groove in the silicon wafer texturing process, reduces the risk that the liquid medicine in each groove is polluted by liquid medicine crystallization, reduces the risk of polluting the battery piece, basically does not need to manually clean the cleaning groove, and saves time and labor.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaics, in particular to a texturing device. Background Art

[0002] In the production process of solar cells, chemical etching is often used to form a pyramid-structured velvet surface on the surface of the silicon wafer to increase the solar cell's absorption of light. In actual production, multiple texturing processes are usually required. During texturing, a robot grabs a flower basket and moves it back and forth between different troughs. When the flower basket is transferred to other troughs after cleaning, it will bring out the cleaning liquid, which drips onto the trough cover of the trough. The cleaning liquid evaporates under high temperature and forms crystals. As the trough cover opens and closes, the crystal particles will fall into the trough, causing the battery cells to be contaminated and affecting product quality. For the above problems, operators currently clean each trough regularly. Manual cleaning is time-consuming and labor-intensive, and there is a risk of damage to the trough. In addition, it is easy to produce scratches when manually cleaning the crystal particles on the trough cover, and it is easier for cleaning liquid and liquid medicine to remain at the scratches, which increases the difficulty of cleaning. Utility Model Content

[0003] Based on this, it is necessary to provide a texturing device. The texturing device of the utility model can effectively reduce the risk of liquid crystal contamination of battery cells, reduce manual cleaning, and save time and labor.

[0004] An embodiment of the present application provides a texturing device.

[0005] A texturing device comprises a pre-cleaning tank, a texturing tank, a water washing tank, a post-cleaning tank, a pickling tank and a drying tank, wherein the pre-cleaning tank, the texturing tank, the post-cleaning tank, the pickling tank and the drying tank are sequentially distributed along the process flow direction, wherein the pre-cleaning tank, the texturing tank, the post-cleaning tank and the pickling tank are each provided with a corresponding water washing tank.

[0006] In some embodiments, there are multiple pre-cleaning tanks, which are spaced apart along the process flow direction, and the water washing tank is disposed between at least one group of adjacent pre-cleaning tanks.

[0007] In some embodiments, the number of the pre-cleaning tanks is 2 to 3.

[0008] In some of the embodiments, there are multiple texturing tanks, and the multiple texturing tanks are spaced apart along the process flow direction, and the water washing tank is arranged between at least one group of adjacent texturing tanks.

[0009] In some of the embodiments, the number of the texturing slots is 3 to 4.

[0010] In some of the embodiments, the number of the post - cleaning tanks is multiple, and the multiple post - cleaning tanks are spaced apart along the process flow direction. A water - washing tank is arranged between at least one group of adjacent post - cleaning tanks.

[0011] In some of the embodiments, the number of the post - cleaning tanks is 2 to 3.

[0012] In some of the embodiments, the number of the pickling tanks is multiple, and the multiple pickling tanks are spaced apart along the process flow direction. A water - washing tank is arranged between adjacent pickling tanks.

[0013] In some of the embodiments, the number of the pickling tanks is 3 to 4.

[0014] In some of the embodiments, the number of the drying tanks is multiple.

[0015] In some of the embodiments, one or more of the pre - cleaning tank, the texturing tank, the water - washing tank, the post - cleaning tank, the pickling tank and the drying tank include the following tank structure:

[0016] The tank structure includes a tank body, a tank cover, a connecting rod and a driving mechanism. The top of the tank body has a tank opening, and the tank covers are respectively arranged at opposite positions of the tank opening. The tank cover is rotatably connected to the tank body. The driving mechanism is connected to the tank cover through the connecting rod, and the driving mechanism can drive the tank cover to open or close.

[0017] In the above - mentioned texturing device, by respectively arranging water - washing tanks corresponding to the pre - cleaning tank, the texturing tank, the post - cleaning tank and the pickling tank, it is ensured that rapid water - washing can be carried out at each tank (the pre - cleaning tank, the texturing tank, the post - cleaning tank and the pickling tank). It guarantees the shortest moving distance of the flower basket from the pre - cleaning tank, the texturing tank, the post - cleaning tank and the pickling tank to the water - washing tank respectively, prevents the liquid medicine from dripping on the tank covers of each tank body during the long - distance movement of the flower basket to form liquid - medicine crystallization, reduces the risk of liquid - medicine crystallization contaminating the liquid in the tank body, and also avoids the liquid medicine from dripping on other positions in the workshop, reducing the risk of cell contamination. Basically, each tank body in this application does not need to be regularly cleaned manually, greatly saving labor costs and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] To more fully understand the present application and its beneficial effects, the following will be described in conjunction with the accompanying drawings. Among them, the same reference numerals in the following description represent the same parts.

[0020] Figure 1 Schematic diagram of the texturing device according to an embodiment of the present utility model;

[0021] Figure 2 Schematic diagram of the groove structure according to an embodiment of the present utility model;

[0022] Figure 3 Schematic diagram of the open state of the trough body according to an embodiment of the present utility model.

[0023] Explanation of reference numerals in the drawings

[0024] 10. Texturing device; 100. Pre-cleaning tank; 200. Texturing tank; 300. Water-washing tank; 400. Post-cleaning tank; 500. Pickling tank; 600. Drying tank; 20. Trough body; 21. Tank cover; 22. Connecting rod; 23. Driving mechanism. Detailed implementation manners

[0025] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present utility model in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0027] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium. It may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of the present utility model, the meaning of "several" is more than one, the meaning of "multiple" is more than two. Understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0031] In this application, when it comes to numerical intervals (i.e., numerical ranges), unless otherwise specified, the distribution of selectable numerical values within the numerical interval is considered continuous and includes the two numerical endpoints of the numerical interval (i.e., the minimum value and the maximum value), as well as each numerical value between these two numerical endpoints. Unless otherwise specified, when the numerical interval only refers to integers within the numerical interval, it includes the two endpoint integers of the numerical range, as well as each integer between the two endpoints, which is equivalent to directly listing each integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be combined. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all sub-ranges subsumed therein. The "numerical values" in this numerical interval can be any quantitative values, such as numbers, percentages, ratios, etc. The "numerical interval" is allowed to broadly include quantitative intervals such as percentage intervals, ratio intervals, and ratio value intervals.

[0032] An embodiment of this application provides a texturing device 10 to solve the problems in the prior art that when texturing silicon wafers, cleaning liquid and chemical liquid drip onto the cover of the tank body to form chemical crystal, resulting in contamination of the battery chips and affecting the product quality; and the operation personnel need to clean the tank body regularly, which is time-consuming and laborious, and scratches on the tank body will cause retention of cleaning liquid and chemical crystal, increasing the cleaning difficulty. The texturing device 10 will be described below with reference to the accompanying drawings.

[0033] The texturing device 10 provided by the embodiment of this application, for example, please refer to Figure 1 as shown Figure 1 is a schematic structural diagram of the texturing device 10 provided by the embodiment of this application. The texturing device 10 of this application can be used in the texturing process of the solar cell preparation process.

[0034] To more clearly illustrate the structure of the texturing device 10, the texturing device 10 will be introduced below with reference to the accompanying drawings. For example, please refer to Figure 1 as shown, a texturing device 10 includes a pre-cleaning tank 100, a texturing tank 200, a water-washing tank 300, a post-cleaning tank 400, an acid-washing tank 500, and a drying tank 600. The pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, the acid-washing tank 500, and the drying tank 600 are sequentially distributed along the process flow direction. Among them, the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, and the acid-washing tank 500 are all correspondingly provided with a water-washing tank 300. After the flower basket and the silicon wafers in the flower basket are transferred out of each tank (such as the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, and the acid-washing tank 500), they can be quickly transferred into the corresponding water-washing tank 300, so that the transfer distance of the flower basket is minimized and the risk of chemical liquid dripping is reduced.

[0035] In some of these embodiments, the number of pre - cleaning tanks 100 is multiple. The multiple pre - cleaning tanks 100 are spaced along the process flow direction, and a water - washing tank 300 is provided between at least one set of adjacent pre - cleaning tanks 100. The multiple pre - cleaning tanks 100 can improve the pre - cleaning effect of the wafers in the carrier. Preferably, a water - washing tank 300 is provided between each adjacent pair of pre - cleaning tanks 100.

[0036] In some of these embodiments, the number of pre - cleaning tanks 100 is 2 to 3. Refer to Figure 1 As shown, the number of pre - cleaning tanks 100 is shown as two. The number of pre - cleaning tanks 100 can also be set according to actual needs.

[0037] In some of these embodiments, the number of texturing tanks 200 is multiple. The multiple texturing tanks 200 are spaced along the process flow direction, and a water - washing tank 300 is provided between at least one set of adjacent texturing tanks 200. The multiple texturing tanks 200 can improve the texturing effect of the wafers in the carrier. Preferably, a water - washing tank 300 is provided between each adjacent pair of texturing tanks 200.

[0038] In some of these embodiments, the number of texturing tanks 200 is 3 to 4. Refer to Figure 1 As shown, the number of texturing tanks 200 is shown as three. The number of texturing tanks 200 can also be set according to actual needs.

[0039] In some of these embodiments, the number of post - cleaning tanks 400 is multiple. The multiple post - cleaning tanks 400 are spaced along the process flow direction, and a water - washing tank 300 is provided between at least one set of adjacent post - cleaning tanks 400. The multiple post - cleaning tanks 400 can improve the post - cleaning effect of the wafers in the carrier. Preferably, a water - washing tank 300 is provided between each adjacent pair of post - cleaning tanks 400.

[0040] In some of these embodiments, the number of post - cleaning tanks 400 is 2 to 3. Refer to Figure 1 As shown, the number of post - cleaning tanks 400 is shown as two. The number of post - cleaning tanks 400 can also be set according to actual needs.

[0041] In some of these embodiments, the number of pickling tanks 500 is multiple. The multiple pickling tanks 500 are spaced along the process flow direction, and a water - washing tank 300 is provided between at least one set of adjacent pickling tanks 500. The multiple pickling tanks 500 can improve the pickling effect of the wafers in the carrier. Preferably, a water - washing tank 300 is provided between each adjacent pair of pickling tanks 500.

[0042] In some of these embodiments, the number of pickling tanks 500 is 3 to 4. Refer to Figure 1As shown, the number of pickling tanks 500 is shown as three. The number of pickling tanks 500 can also be set according to actual needs.

[0043] In some embodiments, the number of drying tanks 600 is multiple. Refer to Figure 1 As shown, the number of drying tanks 600 is shown as two. Structures such as a blower and a heating element can be arranged in the drying tank 600 to achieve drying of the silicon wafers.

[0044] In some embodiments, one or more of the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, the pickling tank 500, and the drying tank 600 respectively include the following tank structure: Refer to Figure 2 As shown, Figure 2 This is a schematic structural diagram of the tank structure according to an embodiment of the present invention. The tank structure includes a tank body 20, a tank cover 21, a connecting rod 22, and a driving mechanism 23. The top of the tank body 20 has a tank opening. Tank covers 21 are respectively arranged at opposite positions of the tank opening. The tank cover 21 is rotatably connected to the tank body 20. The driving mechanism 23 is connected to the tank cover 21 through the connecting rod 22. The driving mechanism 23 can drive the tank cover 21 to open or close. Preferably, in the initial state, refer to Figure 2 As shown, the tank cover 21 is in an inverted V-shaped closed state.

[0045] Preferably, the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, the pickling tank 500, and the drying tank 600 all adopt the above-mentioned tank structure. After the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, the pickling tank 500, and the drying tank 600 adopt the above-mentioned tank structure, it can be realized that when the carrier is taken out from each tank, the liquid adhered to the carrier flows back to the corresponding tank body 20 through the inner wall of the tank cover 21, so that the outside of the tank cover 21 and the connecting part between adjacent tanks are kept clean. When the tank cover 21 is closed, the tank cover 21 is inclined with respect to the horizontal plane, and the two tank covers are closed to form an approximate inverted V shape, which is beneficial to the deionized water dripping on the outer surface of the tank cover 21 to quickly flow out of the tank cover 21, preventing the deionized water from accumulating outside the tank cover 21.

[0046] In some embodiments, the water-washing tank 300 can also adopt the above-mentioned tank structure.

[0047] In some embodiments, the above-mentioned driving mechanism 23 is installed on the tank body 20.

[0048] In some embodiments, the driving mechanism 23 can be a driving cylinder. Preferably, a driving mechanism 23 is respectively arranged for each tank cover 21.

[0049] In some embodiments, in the initial state, refer to Figure 2As shown, in one of the groove structures, the opposite groove covers 21 cover the notch of the groove body 20 and are in an inverted V shape, that is, the opposite groove covers 21 are inclined with respect to the horizontal plane, so that the liquid such as washing solution deionized water dripping on the outer wall of the groove cover 21 can quickly slide down, avoiding accumulation on the outer wall of the groove cover 21. Further, the driving mechanism 23 can drive the groove cover 21 to open to a positive V shape, see Figure 3 as shown Figure 3 is a schematic diagram of the open state of the groove cover 21 of the groove body 20 according to an embodiment of the present invention. When the groove cover 21 is driven to open, the groove cover 21 rotates around the notch edge as the axis and opens away from each other to form a positive V shape, that is, the groove cover 21 has a certain angle with the vertical plane, so as to realize that the liquid adhering to the flower basket flows back into the groove body 20 through the inner wall of the groove cover 21 when the flower basket is taken out from the groove body 20, keeping the outer side of the groove cover 21 and the connecting part between adjacent grooves clean, and reducing the risk of liquid medicine crystallization pollution.

[0050] In some embodiments, see Figure 3 as shown, when installed, adjacent grooves are arranged closely adjacent to each other.

[0051] In summary, in the above-mentioned texturing device 10, by respectively arranging the water washing tanks 300 corresponding to the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, and the pickling tank 500, it is ensured that each tank (pre-cleaning tank 100, texturing tank 200, post-cleaning tank 400, pickling tank 500) can be quickly washed with water, ensuring the shortest moving distance of the flower basket when it is transferred from the pre-cleaning tank 100, the texturing tank 200, the post-cleaning tank 400, and the pickling tank 500 to the corresponding water washing tank 300. This prevents the liquid medicine from dripping on the groove covers 21 of each groove body 20 during the long-distance movement of the flower basket, reducing the risk of liquid medicine crystallization polluting the liquid in the groove body 20, and also avoiding the liquid medicine from dripping on other positions in the workshop, reducing the risk of battery chip pollution. Basically, each groove body 20 in this application does not need to be manually cleaned regularly, greatly saving labor costs and time costs.

[0052] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0054] The above-described embodiments merely represent several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several variations and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A texturing device (10), characterized in that, It includes a pre - cleaning tank (100), a texturing tank (200), a water - washing tank (300), a post - cleaning tank (400), a pickling tank (500) and a drying tank (600). The pre - cleaning tank (100), the texturing tank (200), the post - cleaning tank (400), the pickling tank (500) and the drying tank (600) are sequentially distributed along the process flow direction. Among them, the water - washing tank (300) is respectively arranged corresponding to the pre - cleaning tank (100), the texturing tank (200), the post - cleaning tank (400) and the pickling tank (500).

2. The texturing device (10) according to claim 1, characterized in that, The number of the pre - cleaning tanks (100) is multiple, and the multiple pre - cleaning tanks (100) are spaced along the process flow direction. The water - washing tank (300) is arranged between at least one group of adjacent pre - cleaning tanks (100).

3. The texturing device (10) according to claim 2, characterized in that, The number of the pre - cleaning tanks (100) is 2 to 3.

4. The texturing device (10) according to any one of claims 1 to 3, characterized in that, The number of the texturing tanks (200) is multiple, and the multiple texturing tanks (200) are spaced along the process flow direction. The water - washing tank (300) is arranged between at least one group of adjacent texturing tanks (200).

5. The texturing device (10) according to claim 4, characterized in that, The number of the texturing tanks (200) is 3 to 4.

6. The texturing device (10) according to any one of claims 1 to 3 and 5, characterized in that, The number of the post - cleaning tanks (400) is multiple, and the multiple post - cleaning tanks (400) are spaced along the process flow direction. The water - washing tank (300) is arranged between at least one group of adjacent post - cleaning tanks (400).

7. The texturing device (10) according to claim 6, characterized in that, The number of the post - cleaning tanks (400) is 2 to 3.

8. The texturing device (10) according to any one of claims 1 to 3, 5, and 7, characterized in that The number of the pickling tanks (500) is multiple, and the multiple pickling tanks (500) are spaced along the process flow direction. The water - washing tank (300) is arranged between adjacent pickling tanks (500).

9. The texturing device (10) according to claim 8, characterized in that, The number of the pickling tanks (500) is 3 to 4.

10. The texturing device (10) according to any one of claims 1 to 3, 5, 7, and 9, characterized in that, One or more of the pre - cleaning tank (100), the texturing tank (200), the post - cleaning tank (400), the pickling tank (500) and the drying tank (600) include the following tank structure: The tank structure includes a tank body (20), a tank cover (21), a connecting rod (22) and a driving mechanism (23). The top of the tank body (20) has a tank opening. The tank covers (21) are respectively arranged at the relative positions of the tank opening. The tank cover (21) is rotatably connected to the tank body (20). The driving mechanism (23) is connected to the tank cover (21) through the connecting rod (22). The driving mechanism (23) can drive the tank cover (21) to open or close.

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