Downward pressing device and solar cell production equipment

Abstract

The utility model relates to a pressing device and solar cell production equipment. The downward pressing device comprises a plurality of hold-down tools and a downward pressing mechanism, the hold-down tools are used for being placed on battery pieces of the battery string in a one-to-one correspondence mode, and a first interval is formed between every two adjacent hold-down tools. The downward pressing mechanism comprises a pressing assembly and a lifting assembly, the pressing assembly is erected above the pressing tool, the lifting assembly is connected with the pressing assembly, and the lifting assembly is used for driving the pressing assembly to enter the first interval to press the battery piece and is used for driving the pressing assembly to retreat from the first interval. The pressing device ensures that the welding strip is in good contact with the surface grid line of the battery piece, and further ensures the series welding quality of the battery string.

Description

Technical Field

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

[0002] In the photovoltaic industry, single-cell batteries cannot be used directly as power sources due to their fragility and poor aging resistance. Multiple cells need to be connected in series and parallel through welding ribbons to form a battery string, which is then formed into photovoltaic modules after layout, stack welding and packaging before it can be used for a long time.

[0003] In the production process of battery strings, whether the welding ribbon is welded to the battery cell or the welding ribbon is glued to the battery cell by glue, the welding ribbon needs to be fixed on the surface of the battery cell before the welding ribbon and the battery cell are connected. In the related art, the welding ribbon is usually first pulled to the front or back of the battery cell by a traction mechanism, and then the press is placed on the battery cell one by one, and the welding ribbon is pressed on the surface of the battery cell by the weight of the press itself to prevent the welding ribbon from shifting during the transportation of the battery cell. However, the current conventional press is not very effective in pressing down the battery cell, and because the welding ribbon itself has stress, after the conventional press presses the battery cell, the welding ribbon at the position between the cells is affected by its own stress and arches, resulting in a gap between the welding ribbon and the battery cell and unable to effectively contact the grid line on the surface of the battery cell, which in turn causes the battery string to have a virtual connection between the cells. Utility Model Content

[0004] Based on this, it is necessary to provide a downward pressure device and solar cell production equipment to reduce the problem of virtual connection between cells in a battery string.

[0005] In one aspect, the present application provides a pressing device, comprising:

[0006] A plurality of pressers, each of which is used to be placed on each battery cell of the battery string in a one-to-one correspondence, and a first interval is provided between two adjacent pressers;

[0007] The pressing mechanism includes a pressing component and a lifting component. The pressing component is mounted above the pressing tool. The lifting component is connected to the pressing component. The lifting component can drive the pressing component to enter the first interval to press the battery string, and can drive the pressing component to exit the first interval.

[0008] The technical solution is further described below:

[0009] In one embodiment, the pressing device further includes a conveying mechanism, and the conveying mechanism is used to convey the battery string, and the plurality of pressers are arranged at intervals along the conveying direction of the conveying mechanism.

[0010] In one embodiment, the pressing assembly includes a mounting beam and a plurality of first pressing pins, the mounting beam is connected to the lifting assembly, all of the first pressing pins are arranged at intervals on the mounting beam and the bottom ends of the first pressing pins protrude from the mounting beam, and each of the first pressing pins is used to be arranged one-to-one corresponding to each welding strip of the battery string.

[0011] In one embodiment, the first pressing needle can be movably inserted into the mounting beam, and the pressing assembly further includes a first elastic member, which is sleeved on the first pressing needle, and one end of the first elastic member is connected to the mounting beam, and the other end is connected to the first pressing needle.

[0012] In one embodiment, the press tool includes a mounting seat and a plurality of rows of pressure pin groups inserted through the mounting seat, all of the pressure pin groups are arranged at intervals on the mounting seat, and each row of the pressure pin groups is used to correspond one-to-one with each welding strip of the battery string, each row of the pressure pin groups includes a plurality of second pressure pins, and all of the second pressure pins are arranged at intervals along the extension direction of the welding strip.

[0013] In one embodiment, the second pressing needle can be movably inserted into the mounting seat, and the pressing tool also includes a second elastic member, which is sleeved on the second pressing needle, and one end of the second elastic member is connected to the mounting seat, and the other end is connected to the second pressing needle.

[0014] In one of the embodiments, a clearance groove is provided on one side of the mounting seat, the clearance groove is used to accommodate the battery cell, and one end of the second pressing pin penetrates into the clearance groove and is used to abut against the battery cell.

[0015] In one of the embodiments, the pressing mechanism further includes a transverse movement assembly, which is connected to the lifting assembly, and the transverse movement assembly is used to drive the pressing assembly to reciprocate in a direction parallel to the arrangement direction of the battery cells on the battery string.

[0016] On the other hand, the present application also provides a solar cell production equipment, including the above-mentioned pressing device.

[0017] In one of the embodiments, the solar cell production equipment further includes a welding light box, which is mounted above the press, and is used to cure the glue between the cell sheet and the soldering ribbon, and the pressing mechanism is installed on the welding light box.

[0018] In the above-mentioned pressing device and solar cell production equipment, by placing a plurality of pressers one by one on the battery cells of the battery string, the weight of the pressers themselves can be used to press the welding strips in most areas of the battery string to fit on the surface of the battery cells, ensuring that the welding strips in most areas are in good contact with the surface grid lines of the battery cells. A first interval is set between two adjacent pressers, so that sufficient space can be reserved for the pulling mechanism of the string welding machine to pull the welding strips. At the same time, a pressing component is set above the presser, and the pressing component is driven by the lifting component to enter the first interval to press the inter-cell area of ​​the battery string (the area where the battery cells are located in the first interval), thereby flattening the back welding strips in the inter-cell area of ​​the battery string, avoiding the back welding strips here from bulging due to their own stress, ensuring that the welding strips here can also be in good contact with the surface grid lines of the battery cells, thereby ensuring the string welding quality of the battery string, and preventing the battery string from having virtual connections between the cells. In addition, the lifting component can also drive the pressing component to leave the first interval, thereby avoiding the pressing component affecting the normal operation of the pulling mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0022] Figure 1 The figure is a schematic structural diagram of a solar cell production device according to an embodiment.

[0023] Figure 2 for Figure 1 Front view of the solar cell production equipment shown in.

[0024] Figure 3 This is a partial enlarged view of part A of a solar cell production equipment according to an embodiment.

[0025] Figure 4 Schematic diagram of the structure of a pressing tool according to an embodiment.

[0026] Figure 5 for Figure 4 A side view of the press described in .

[0027] Figure 6 It is a structural schematic diagram of a pressing mechanism of an embodiment.

[0028] Description of reference numerals:

[0029] 10. Pressing tool; 11. Mounting seat; 12. Second pressing pin; 13. Air-avoiding groove; 14. First spacer; 20. Pressing mechanism; 21. Pressing assembly; 211. Mounting beam; 212. First pressing pin; 22. Lifting assembly; 23. Transverse movement assembly; 30. Conveying mechanism; 40. Welding light box; 50. Battery string. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] In the description of the present 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 the present 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 the present application.

[0032] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] 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 a central 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 a central element at the same time. 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 implementation method.

[0036] Specifically, a general battery string 50 includes a plurality of battery cells arranged at intervals, and the plurality of battery cells are connected in series through a plurality of welding strips. During the production process of the battery string 50, the battery string 50 may have a virtual connection between the cells, that is, the welding strip at the position between the cells of the battery string 50 is arched, resulting in the welding strip being unable to effectively contact the grid line of the battery cell. After a lot of research, the inventor found that the reason is that the traditional press cannot completely cover the battery cell, and a certain interval needs to be reserved between two adjacent presses for the traction mechanism to pull the welding strip. In this way, only part of the battery cell is covered by the press, and the welding strip can be flattened within the press coverage to fit closely with the surface grid line of the battery cell, while the inter-cell area of ​​the battery string 50 located between the two adjacent presses cannot be effectively pressed down, resulting in the back welding strip of the inter-cell area of ​​the battery string 50 being arched due to its own stress, which in turn causes the welding strip here to be unable to effectively contact the surface grid line of the battery cell, and ultimately leads to virtual connection between the cells in the battery string 50.

[0037] Based on this, an embodiment of the present application provides a pressing device for pressing the battery cell during the string welding process to ensure that the welding ribbon is closely attached to the surface grid line of the battery cell. Figures 1 to 3 The pressing device of one embodiment includes a plurality of pressing tools 10 and a pressing mechanism 20. Each pressing tool 10 is used to be placed on each battery cell of the battery string 50 in a one-to-one correspondence, and a first interval 14 is provided between two adjacent pressing tools 10. The pressing mechanism 20 includes a pressing component 21 and a lifting component 22. The pressing component 21 is mounted above the pressing tool 10. The lifting component 22 is connected to the pressing component 21. The lifting component 22 can drive the pressing component 21 to enter the first interval 14 to press the battery string 50, and can drive the pressing component 21 to exit the first interval 14.

[0038] In the above-mentioned pressing device, by placing the press 10 on each battery cell of the battery string 50 in a one-to-one correspondence, the weight of the press 10 itself can be used to press the welding strips in most areas of the battery string 50 to fit to the surface of the corresponding battery cell, ensuring that the welding strips in most areas are in good contact with the surface grid lines of the battery cell. A first interval 14 is set between two adjacent presses 10, so that sufficient space can be reserved for the pulling mechanism of the string welding machine to pull the welding strips. At the same time, by setting a pressing component 21 above the press 10, and driving the pressing component 21 to enter the first interval 14 through the lifting component 22 to press the inter-cell area of ​​the battery string 50 (the area where the battery string is located in the first interval 14), the back welding strips in the inter-cell area of ​​the battery string 50 are flattened, avoiding the back welding strips here from being arched due to their own stress, ensuring that the welding strips here can also be in good contact with the surface grid lines of the battery cell, thereby ensuring the string welding quality of the battery string 50 and preventing the battery string 50 from having inter-cell virtual connections. In addition, the lifting assembly 22 can also drive the pressing assembly 21 to leave the first interval 14, thereby preventing the pressing assembly 21 from affecting the normal operation of the pulling mechanism.

[0039] See also Figure 1 In one embodiment, the pressing device further includes a conveying mechanism 30, which is used to convey the battery string 50, and all the pressers 10 are arranged at intervals along the conveying direction of the conveying mechanism 30. Specifically, the conveying mechanism 30 is used to convey the battery string 50 to the welding curing station so as to connect and fix the battery cells and the welding ribbons in the battery string 50. In the process of the conveying mechanism 30 conveying the battery string 50, the conveying mechanism 30 drives the battery string 50 to step forward once, and the lifting assembly 22 drives the pressing assembly 21 to press down once, so that the pressing assembly 21 flattens the welding ribbons in each first interval 14 in turn, so as to ensure that the welding ribbons can fit tightly with all the battery cells on the battery string 50. Furthermore, in one embodiment, the conveying mechanism 30 includes a conveyor belt, which can convey the battery string 50 more smoothly, so as to avoid the battery string 50 from accidentally falling and causing the battery cells and the welding ribbons to be misaligned.

[0040] See also Figure 6 Optionally, in one embodiment, the pressing assembly 21 includes a mounting beam 211 and a plurality of first pressing pins 212, the mounting beam 211 is connected to the lifting assembly 22, all the first pressing pins 212 are arranged at intervals on the mounting beam 211, and the bottom ends of the first pressing pins 212 protrude from the mounting beam 211, and the plurality of first pressing pins 212 are arranged one-to-one corresponding to the plurality of welding strips of the battery string 50. Specifically, when the pressing assembly 21 is pressed down onto the battery string 50, the positions of the first pressing pins 212 correspond one-to-one to the positions of the plurality of welding strips of the battery string 50, so as to flatten the welding strips more accurately without damaging the battery cells, and ensure that the welding strips are closely attached to the battery cells.

[0041] Furthermore, the mounting beam 211 is a rod-shaped structure or a plate-shaped structure, and the mounting beam 211 extends in a direction perpendicular to the conveying direction of the conveying mechanism 30, and a plurality of first pressing pins 212 are spaced and evenly arranged along the extending direction of the mounting beam 211, thereby ensuring that the pressing assembly 21 applies uniform force to the battery cell. Furthermore, the mounting beam 211 and the second pressing pins 12 are both made of high temperature resistant material.

[0042] Furthermore, the first pressing pin 212 can be movably inserted into the mounting beam 211, and the pressing assembly 21 further includes a first elastic member (not shown), which is sleeved on the first pressing pin 212, and one end of the first elastic member is connected to the mounting beam 211, and the other end of the first elastic member is connected to the first pressing pin 212. In this way, the first pressing pin 212 can be retracted and floated, ensuring that the first pressing pin 212 is in elastic contact with the battery string 50, reducing the risk of the first pressing pin 212 fracturing the battery cell. Furthermore, the first elastic member can be a spring.

[0043] It is understandable that in other embodiments, the pressing component 21 may also be a pressing strip or a pressing block, and by pressing the battery string 50 with the pressing strip or the pressing block, the welding strip at the first interval 14 may also be flattened.

[0044] See also Figure 4 as well as Figure 5 In one embodiment, the press 10 includes a mounting seat 11 and a plurality of rows of pressure needle groups inserted on the mounting seat 11. All the pressure needle groups are arranged at intervals on the mounting seat 11, and each row of pressure needle groups is used to correspond to each welding strip of the battery string 50. Each row of pressure needle groups includes a plurality of second pressure needles 12, and the plurality of second pressure needles 12 are arranged at intervals along the extension direction of the welding strip. By arranging a plurality of rows of pressure needle groups at intervals on the mounting seat 11, and making each row of pressure needle groups include a plurality of second pressure needles 12 arranged at intervals, after the press 10 is placed on the battery cell, the plurality of second pressure needles 12 in each row of pressure needle groups can press the battery cell along the extension direction of the welding strip to ensure that the welding strip fits tightly with the battery cell. Furthermore, the mounting seat 11 and the second pressure needles 12 are made of high temperature resistant material.

[0045] Furthermore, the second pressing pin 12 can be movably inserted into the mounting seat 11, and the pressing tool 10 also includes a second elastic member (not shown), which is sleeved on the second pressing pin 12, and one end of the second elastic member is connected to the mounting seat 11, and the other end of the second elastic member is connected to the second pressing pin 12. In this way, the second pressing pin 12 can be retracted and floated, ensuring that the second pressing pin 12 is in elastic contact with the battery string 50, reducing the risk of the second pressing pin 12 fracturing the battery cell. Preferably, the second elastic member can be a spring.

[0046] See also Figure 5 In one embodiment, a side of the mounting seat 11 close to the conveying mechanism 30 is provided with an air-avoiding groove 13, and the air-avoiding groove 13 is used to accommodate the battery cell. One end of the second pressing needle 12 penetrates into the air-avoiding groove 13 and is used to abut against the battery cell. That is, the mounting seat 11 straddles the battery cell and does not directly contact the battery cell, thereby preventing the mounting seat 11 from crushing the battery cell.

[0047] Continue to see Figure 3 Optionally, in one embodiment, the pressing mechanism 20 further includes a transverse moving assembly 23, which is connected to the lifting assembly 22, and is used to drive the pressing assembly 21 to reciprocate in a direction parallel to the arrangement of the battery cells on the battery string 50. Specifically, in battery strings 50 of different specifications, the intervals between the cell regions of the battery string 50 may be different. By arranging the transverse moving assembly 23 in the pressing mechanism 20, and using the transverse moving assembly 23 to drive the pressing assembly 21 to reciprocate in a direction parallel to the arrangement of the battery cells, the front and rear positions of the pressing assembly 21 can be adjusted, thereby ensuring that the pressing assembly 21 can accurately enter the first interval 14 to press the cell region between the battery string 50. Furthermore, the transverse moving assembly 23 can be a linear module, an electric push rod, a cylinder, or a cam mechanism, etc., which is not limited here.

[0048] Optionally, in one embodiment, the lifting assembly 22 may be a linear module, an electric push rod, a cylinder, a cam mechanism, etc., which are not limited here.

[0049] See also Figure 1 as well as Figure 2 An embodiment of the present application further provides a solar cell production device. Specifically, the solar cell production device of an embodiment includes the pressing device of any of the above embodiments.

[0050] Optionally, in one embodiment, the solar cell production equipment uses glue to bond and fix the soldering ribbon to the cell. Further, the solar cell production equipment also includes a welding light box 40, which is set above the press 10, and the welding light box 40 is used to solidify the glue between the cell and the soldering ribbon, and the pressing mechanism 20 is installed on the welding light box 40. By directly installing the pressing mechanism 20 on the welding light box 40, the overall structure of the solar cell production equipment is simpler and more compact, and the cost is reduced. It is understandable that in other embodiments, the pressing mechanism 20 can also be installed on other components of the solar cell production equipment, such as on the frame of the solar cell production equipment. Further, the welding light box 40 can be an ultraviolet lamp or an infrared lamp, which is not limited here.

[0051] Understandably, in other embodiments, the solar cell production equipment may also utilize solder to directly weld the solder ribbon to the cell, thereby improving the electrical connection between the solder ribbon and the cell. In this case, the welding light box 40 may be replaced by a welding tool such as a welding gun.

[0052] In the above solar cell production equipment, by placing a plurality of pressers 10 on the cells of the cell string 50 in a one-to-one correspondence, the weight of the pressers 10 can be used to press the solder strips in most areas of the cell string 50 to fit on the surface of the cell, ensuring that the solder strips in most areas are in good contact with the surface grid lines of the cell. A first interval 14 is provided between two adjacent pressers 10, so that sufficient space can be reserved for the pulling mechanism of the string welding machine to pull the solder strips. At the same time, by setting a pressing assembly 21 above the presser 10 and driving the pressing assembly 21 into the first interval 14 through the lifting assembly 22 to press the inter-cell area of ​​the cell string 50 (the area where the cell is located in the first interval 14), the back solder strips in the inter-cell area of ​​the cell string 50 are flattened, avoiding the back solder strips here from being arched due to their own stress, ensuring that the solder strips here can also be in good contact with the surface grid lines of the cell, thereby ensuring the string welding quality of the cell string 50 and preventing the cell string 50 from having inter-cell virtual connections. In addition, the lifting assembly 22 can also drive the pressing assembly 21 to leave the first interval 14, thereby preventing the pressing assembly 21 from affecting the normal operation of the pulling mechanism.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A pressing device, characterized in that: include: A plurality of pressers (10), each of the pressers (10) being used to be placed correspondingly on each battery cell of a battery string (50), and a first interval (14) being provided between two adjacent pressers (10); A pressing mechanism (20), the pressing mechanism (20) comprising a pressing component (21) and a lifting component (22), the pressing component (21) being mounted above the pressing tool (10), the lifting component (22) being connected to the pressing component (21), the lifting component (22) being capable of driving the pressing component (21) to enter the first interval (14) to press the battery string (50), and being capable of driving the pressing component (21) to exit the first interval (14).

2. The pressing device according to claim 1, characterized in that: The pressing device further comprises a conveying mechanism (30), wherein the conveying mechanism (30) is used to convey the battery string (50), and all the pressing tools (10) are arranged at intervals along the conveying direction of the conveying mechanism (30).

3. The pressing device according to claim 1, characterized in that: The pressing assembly (21) comprises a mounting beam (211) and a plurality of first pressing pins (212); the mounting beam (211) is connected to the lifting assembly (22); all of the first pressing pins (212) are arranged at intervals on the mounting beam (211) and the bottom ends of the first pressing pins (212) protrude from the mounting beam (211); and each of the first pressing pins (212) is used to be arranged corresponding to each welding strip of the battery string (50).

4. The pressing device according to claim 3, characterized in that: The first pressing needle (212) is movably inserted into the mounting beam (211), and the pressing assembly (21) further comprises a first elastic member, the first elastic member is sleeved on the first pressing needle (212), and one end of the first elastic member is connected to the mounting beam (211), and the other end is connected to the first pressing needle (212).

5. The pressing device according to claim 1, characterized in that: The press tool (10) comprises a mounting seat (11) and a plurality of rows of press pin groups inserted into the mounting seat (11), wherein all the press pin groups are arranged at intervals on the mounting seat (11), and each row of the press pin groups is used to correspond to each welding strip of the battery string (50) one by one, and each row of the press pin groups comprises a plurality of second press pins (12), and all the second press pins (12) are arranged at intervals along the extension direction of the welding strip.

6. The pressing device according to claim 5, characterized in that: The second pressing needle (12) is movably inserted into the mounting seat (11), and the pressing tool (10) further comprises a second elastic member, the second elastic member is sleeved on the second pressing needle (12), and one end of the second elastic member is connected to the mounting seat (11), and the other end is connected to the second pressing needle (12).

7. The pressing device according to claim 5, characterized in that: A clearance groove (13) is provided on one side of the mounting seat (11), the clearance groove (13) being used to accommodate the battery cell, and one end of the second pressing needle (12) penetrates into the clearance groove (13) and is used to abut against the battery cell.

8. The pressing device according to claim 5, characterized in that: The pressing mechanism (20) further comprises a transverse movement assembly (23), the transverse movement assembly (23) being connected to the lifting assembly (22), and the transverse movement assembly (23) being used to drive the pressing assembly (21) to reciprocate in a direction parallel to the arrangement direction of the battery cells on the battery string (50).

9. A solar cell production equipment, characterized in that: The invention comprises the pressing device according to any one of claims 1 to 8.

10. The solar cell production equipment according to claim 9, characterized in that: The solar cell production equipment further comprises a welding light box (40), the welding light box (40) being mounted above the press (10), the welding light box (40) being used to solidify glue between the cell sheet and the welding strip, and the pressing mechanism (20) being mounted on the welding light box (40).

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