Electroinjection equipment

Abstract

This utility model relates to an electro-injection device. The electro-injection device includes: a support, comprising an upper bracket and a lower platform arranged opposite to and spaced apart; an electro-injection platform, disposed on the upper bracket, with several through holes formed on its bearing surface opposite to the lower platform; a lifting unit, comprising a base plate and multiple push rods connected to the base plate, the base plate being movably disposed on the lower platform and located between the electro-injection platform and the lower platform; the push rods being inserted into the through holes one by one, and the push rods having an initial state and a lifted state. In the initial state, the top end of the push rod is located in the corresponding through hole; in the lifted state, the top end of the push rod extends out of the corresponding through hole towards the bearing surface of the electro-injection platform; and a driving unit for driving the base plate and push rods to move away from the lower platform, so that the push rods switch from the initial state to the lifted state. This utility model's electro-injection device can improve the yield of solar cell electro-injection, improve operator safety, and also maintain production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to an electric injection device. Background Technology

[0002] In the manufacturing process of solar cells, electro-injection is required to improve cell performance. For example, electro-injection can make the electric field distribution inside the cell more uniform, thereby improving the cell's charge transport efficiency and storage capacity. The electro-injection process involves placing the solar cell on the electro-injection platform of the electro-injection equipment, applying a forward bias voltage to the cell at a certain temperature, and injecting charge carriers. After electro-injection, operators typically wear heat-resistant gloves to remove the solar cell from the electro-injection platform. However, in this manual removal method, the gloves are easily damaged or even adhere to the heated platform immediately after electro-injection, causing contamination and affecting product yield. Furthermore, damaged gloves can easily cause burns, posing a safety hazard. Conversely, waiting for the electro-injection platform to cool down before removing the solar cell results in lower efficiency. Utility Model Content

[0003] Therefore, it is necessary to provide an electro-injection device that can improve the yield of solar cell electro-injection, enhance the safety of personnel operation, and also take into account production efficiency.

[0004] This application provides an electro-injection device, including:

[0005] The support includes an upper bracket and a lower platform that are positioned opposite each other and spaced apart;

[0006] An electro-injection platform is mounted on an upper support, and several through holes are provided on the bearing surface of the electro-injection platform opposite to the lower platform.

[0007] The lifting unit includes a base plate and multiple push rods connected to the base plate. The base plate is movably mounted on a lower platform and located between the electro-injection platform and the lower platform. Each push rod is inserted into a corresponding through hole. The push rod has an initial state and a lifted state. In the initial state, the top end of the push rod is located in the corresponding through hole. In the lifted state, the top end of the push rod extends out of the corresponding through hole towards the bearing surface of the electro-injection platform.

[0008] The drive unit is used to drive the base plate and the push rod to move away from the lower platform, so that the push rod switches from the initial state to the lifting state.

[0009] In one embodiment, the drive unit includes a rotating rod and a top block fixedly connected to the rotating rod, the rotating rod being rotatably supported on the lower platform by a support arm;

[0010] When the rotating rod rotates in the first direction, the seat plate is pushed away from the lower platform by the top block, so as to drive the top rod to switch from the initial state to the lifted state.

[0011] In one embodiment, a stop is provided at the position of the seat plate corresponding to the top block. The stop is located on the surface of the seat plate facing the lower platform and is used to block the corresponding top block in the path of rotation along the first direction.

[0012] In one embodiment, the seat plate falls back towards the lower platform when the rotating rod rotates in the second direction, thereby driving the push rod to switch from the lifted state to the initial state, wherein the first direction and the second direction are opposite.

[0013] In one embodiment, one of the opposing surfaces of the seat plate and the lower platform plate is provided with a guide sleeve, and the other is provided with a guide shaft that is inserted into the guide sleeve and guides and engages with the guide sleeve. The guide shaft is arranged parallel to the push rod.

[0014] In one embodiment, an elastic reset member is also connected between the base plate and the lower platform plate, and the elastic reset member always applies an elastic force toward the lower platform plate to the base plate.

[0015] In one embodiment, a wheel is connected to the end of the rotating rod.

[0016] In one embodiment, the drive unit further includes a drive source configured as a motor or a rotary cylinder, the drive end of the drive source being connected to the rotating rod to drive the rotating rod to rotate.

[0017] In one embodiment, the electro-injection device further includes an adjustment assembly, which includes an adjustment rod connected to the electro-injection platform and a second elastic member sleeved on the outer periphery of the adjustment rod; the upper bracket is provided with a through mounting hole corresponding to the position of the adjustment rod, and both the adjustment rod and the second elastic member pass through the mounting hole;

[0018] The second elastic element is used to consistently apply an elastic force away from the upper support to the electro-injection platform.

[0019] In one embodiment, the edge of the mounting hole facing the lower platform is provided with a flange, and a stepped surface is provided between the two ends of the adjusting rod;

[0020] The two ends of the second elastic element abut against the flange and the stepped surface, respectively.

[0021] In one embodiment, multiple push rods are connected to the side of the base plate facing the electro-injection platform and are perpendicular to the surface of the base plate facing the electro-injection platform.

[0022] In one embodiment, the electro-injection device further includes wafer pick-up teeth, which include a gripping portion and a plurality of teeth, the plurality of teeth being arranged at intervals and all connected to the gripping portion.

[0023] The beneficial effects of the above-mentioned electro-injection equipment are as follows:

[0024] By setting up a support, which includes an upper bracket and a lower platform that are opposite to each other and spaced apart, and the electrical injection platform is set on the upper bracket, the battery cell can be placed on the bearing surface of the electrical injection platform for electrical injection test when the top end of the top rod is located in the corresponding through hole.

[0025] By setting up a lifting unit, the base plate of the lifting unit is movably mounted on the lower platform and located between the electro-injection platform and the lower platform. Each lifting rod is inserted into a corresponding through hole. Since the drive unit drives the base plate and lifting rods to move away from the lower platform, the lifting rods switch from their initial state to the lifting state. This allows each lifting rod to move until its top end extends beyond the bearing surface in its corresponding through hole. Therefore, after the electro-injection test is completed, it is only necessary to drive the drive unit to move the base plate and lifting rods away from the lower platform, so that the top end of each lifting rod extends beyond the corresponding through hole. The top end of the lifting rod can then lift the solar cells on the bearing surface, creating a certain gap between the solar cells and the bearing surface. The cell-retrieving teeth can be inserted between the bearing surface of the electro-injection platform and the solar cells to support the solar cells on the teeth. By moving the teeth, the solar cells can be removed.

[0026] During the removal process, after the solar cells are lifted by the push rod, there is a certain distance between them and the bearing surface of the high-temperature electro-injection platform. This reduces the likelihood of operators touching the electro-injection platform when handling the cells, minimizing the chance of gloves coming into contact with the platform and causing contamination. It also reduces the risk of burns to operators, thus improving operational safety. Since the solar cells can be removed directly after electro-injection without cooling the platform, this also shortens process time and improves production efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the electrical injection device provided in the embodiments of this application;

[0028] Figure 2 A cross-sectional view of the electrical injection device provided in an embodiment of this application;

[0029] Figure 3 A side view of an electrical injection device provided in an embodiment of this application;

[0030] Figure 4 A schematic diagram of another structure of the electrical injection device provided in the embodiments of this application;

[0031] Figure 5 A schematic diagram of another structure of the electrical injection device provided in the embodiments of this application;

[0032] Figure 6 A cross-sectional view from another angle of the electro-injection device provided in an embodiment of this application;

[0033] Figure 7 for Figure 6 A magnified view of a portion at point A.

[0034] Explanation of icon numbers:

[0035] 100. Electroinjection equipment;

[0036] 10. Support; 11. Upper bracket; 110. Mounting hole; 111. Flanged part; 112. Mounting strip; 113. Sleeve; 114. Flange part; 12. Lower platform; 13. Side plate;

[0037] 20. Electro-injection platform; 21. Through hole; 22. Bearing surface;

[0038] 30. Lifting unit; 31. Seat plate; 310. Stop; 32. Push rod;

[0039] 41. Guide shaft; 42. Guide shaft sleeve; 43. Elastic reset component; 44. Pull ring; 45. First pulley; 46. Second pulley; 47. Belt;

[0040] 50. Drive unit; 51. Rotating rod; 52. Top block; 53. Rotating wheel; 54. Support arm; 55. Motor; 56. Rotary cylinder;

[0041] 60. Adjustment assembly; 61. Adjustment rod; 610. Stepped surface; 62. Second elastic element; 63. Limit nut;

[0042] 70. Control box;

[0043] 80. Pick-up teeth; 81. Holding part; 82. Insertion teeth; 90. Battery cell. Detailed Implementation

[0044] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0045] In the description of this 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0050] The electrical injection apparatus of this application, in conjunction with the accompanying drawings, is described below. The electrical injection apparatus of this application is used for electrical injection of solar cells.

[0051] Figure 1 This is a schematic diagram of the structure of the electrical injection device provided in an embodiment of this application. Figure 2 A cross-sectional view of an electrical injection device provided in an embodiment of this application. Figure 3 A side view of an electrical injection device provided in an embodiment of this application. Figure 4 This is a schematic diagram of another structure of the electro-injection device provided in an embodiment of this application. Figure 5 This is a schematic diagram of another structure of the electro-injection device provided in the embodiments of this application. Figure 6 Another cross-sectional view of the electro-injection device provided in an embodiment of this application. Figure 7 for Figure 6 A magnified view of a portion at point A.

[0052] Reference Figure 1 and Figure 2 The electro-injection device 100 provided in this application embodiment includes: a support 10, an electro-injection platform 20, a lifting unit 30, and a drive unit 50.

[0053] The support 10 includes an upper bracket 11 and a lower platform 12 arranged opposite to each other and spaced apart. An electro-injection platform 20 is disposed on the upper bracket 11, and a plurality of through holes 21 are formed on the bearing surface 22 of the electro-injection platform 20 facing away from the lower platform 12. The lifting unit 30 includes a base plate 31 and a plurality of push rods 32 connected to the base plate 31. The base plate 31 is movably disposed on the lower platform 12 and located between the electro-injection platform 20 and the lower platform 12. The push rods 32 are inserted one-to-one into the through holes 21. The push rods 32 include an initial state (e.g., ...). Figure 3 (as shown in the lower middle of the attached diagram) and the lifted state (as shown in the attached diagram) Figure 3 (As shown in the upper middle part of the attached diagram), in the initial state, the top end of the push rod 32 is located in the corresponding through hole 21. In the lifted state, the top end of the push rod 32 extends out of the corresponding through hole 21 toward the bearing surface 22 of the electro-injection platform 20. The drive unit 50 is used to drive the base plate 31 and the push rod 32 to move away from the lower platform 12, so that the push rod 32 switches from the initial state to the lifted state.

[0054] It should be noted that when the push rod 32 is in the initial state, the top end of each push rod 32 retracts into the corresponding through hole 21. When the push rod 32 is in the lifted state, each push rod 32 moves in the corresponding through hole 21 until its top end extends beyond the bearing surface 22.

[0055] In this embodiment, a support 10 is provided, which includes an upper bracket 11 and a lower platform 12 that are arranged opposite to each other and spaced apart. The electrical injection platform 20 is provided on the upper bracket 11. When the top end of the top rod 32 is located in the corresponding through hole 21, the battery cell can be placed on the bearing surface 22 of the electrical injection platform 20 for electrical injection testing.

[0056] By setting up a lifting unit 30, the base plate 31 of the lifting unit 30 is movably mounted on the lower platform 12 and located between the electrical injection platform 20 and the lower platform. The lifting rods 32 are inserted into the through holes 21 one by one. Since the driving unit 50 is used to drive the base plate 31 and the lifting rods 32 to move away from the lower platform 12, so that the lifting rods 32 switch from the initial state to the lifting state, so that each lifting rod 32 moves in the corresponding through hole 21 until the top end exceeds the bearing surface 22. Therefore, when the electrical injection test is completed, it is only necessary to drive the driving unit 50 to drive the base plate 31 and the lifting rods 32 to move away from the lower platform 12, so that the top end of each lifting rod 32 extends out of the corresponding through hole 21. The top end of the lifting rod 32 can lift the battery cell on the bearing surface 22. At this time, there is a certain gap between the battery cell and the bearing surface 22. Then, the pick-up teeth 80 can be inserted between the bearing surface 22 of the electrical injection platform 20 and the battery cell, so that the battery cell can be carried on the pick-up teeth 80. The battery cell can be removed by moving the pick-up teeth 80.

[0057] During the removal process, after the battery cell is lifted by the push rod 32, there is a certain distance between it and the bearing surface 22 of the high-temperature electrical injection platform 20. When the operator picks up the battery cell, it is less likely to come into contact with the electrical injection platform 20, reducing the chance of gloves touching the platform and causing contamination. Operators are also less likely to be burned, thus improving operational safety. Since the battery cell can be removed directly after electrical injection without cooling the electrical injection platform 20, this also shortens the process time and improves production efficiency.

[0058] In some embodiments, when the pick-up teeth 80 are inserted between the bearing surface 22 of the electrical injection platform 20 and the battery cell, the drive unit 50 drives the base plate 31 and the push rod 32 to move toward the lower platform 12. The top end of each push rod 32 retracts into the corresponding through hole 21, and the battery cell can automatically fall onto the pick-up teeth 80. The battery cell can be removed by moving the pick-up teeth 80.

[0059] It is important to note that, in order to ensure adequate support for the solar cells, the multiple push rods 32 are of equal length, ensuring that their tips are aligned in the same plane. Furthermore, the diameter of the push rods 32 is smaller than the inner diameter of the through hole 21. During electro-injection, even if the push rods 32 are located inside the through hole 21, they will not contact the hole wall due to the gap between them, thus preventing electrical and heat transfer.

[0060] In this embodiment of the application, combined with Figure 2 and Figure 3 The drive unit 50 includes a rotating rod 51 and a top block 52 fixedly connected to the rotating rod 51. The rotating rod 51 is rotatably supported on the lower platform 12 by a support arm 54.

[0061] Seat plate 31 rotates rod 51 along the first direction (in) Figure 3 When the middle (which can be counterclockwise) rotates, it is pushed away from the lower platform 12 by the top block 52, so as to drive the top rod 32 to switch from the initial state to the lifted state.

[0062] In this embodiment, a stop 310 is provided at the position of the seat plate 31 corresponding to the top block 52. The stop 310 is located on the surface of the seat plate 31 facing the lower platform 12 and is used to block the top block 52 in the path of rotation along the first direction.

[0063] Thus, when the rotating rod 51 drives the top block 52 to rotate in the first direction, the rotation stops when it encounters the stop 310. Therefore, the position of the stop 310 serves as the end point of the travel of the top block 52 in the first direction. That is, the highest point of travel of the end of the top block 52 during rotation. When the rotating rod 51 rotates to bring the end of the top block 52 into contact with the stop 310, it can be held in this position, allowing the top end of the rod 32 to push the battery cell 90 to its highest position.

[0064] Furthermore, referring to Figure 3 When the rotating rod 51 rotates in the second direction, the seat plate 31 falls back towards the lower platform 12, thereby driving the push rod 32 from... Figure 3 The lifting state shown in the upper attached figure is switched to the initial state shown in the lower attached figure, wherein the first direction and the second direction are opposite.

[0065] With this configuration, simply rotating the rotating rod 51 in the first direction can lift the seat plate 31 with the top block 52, or rotating the rotating rod 51 in the second direction will stop the top block 52 from applying lifting force to the seat plate 31, and the seat plate 31 can fall back under its own weight or the action of other external force-applying components.

[0066] In some embodiments, refer to Figure 2 and Figure 3There can be two top blocks 52, which are arranged at intervals along the length of the rotating rod 51 and located at the same position in the circumferential direction of the rotating rod 51. In this way, the two top blocks 52 can synchronously lift different positions on the seat plate 31 when rotating.

[0067] To make the lifting process of the seat plate 31 smoother, the end of the top block 52 can be formed into an arc surface, so that the top part of the top block 52 makes line contact with the seat plate 31.

[0068] In this embodiment of the application, on the opposing surfaces of the seat plate 31 and the lower platform plate 12, one is provided with a guide sleeve 42, and the other is provided with a guide shaft 41 that is inserted into the guide sleeve 42 and guided and cooperates with the guide sleeve 42. The guide shaft 41 is arranged parallel to the top rod 32.

[0069] This configuration guides the movement of the seat plate 31 as it moves away from or towards the lower platform 12. Since the guide shaft 41 is parallel to the push rod 32, the movement of the guide shaft 41 relative to the electro-injection platform 20 and the movement of the seat plate 31 relative to the electro-injection platform 20 can be in the same direction. In some embodiments, the guide shaft 41 is connected to the seat plate 31, and the guide shaft sleeve 42 is connected to the lower platform 12.

[0070] In this embodiment, an elastic reset member 43 is also connected between the seat plate 31 and the lower platform plate 12. The elastic reset member 43 always applies an elastic force toward the lower platform plate 12 to the seat plate 31.

[0071] Thus, after the top rod 32 is raised to its highest position and the battery cells are removed, the elastic reset member 43 can apply an elastic force to the base plate 31, causing the base plate 31 to move closer to the lower platform 12. In some embodiments, pull rings 44 may be provided on the opposing surfaces of the base plate 31 and the lower platform 12, and these two pull rings 44 are respectively used to hook and connect the two ends of the elastic reset member 43. The elastic reset member 43 may be, for example, a tension spring.

[0072] In this embodiment, a rotating wheel 53 is connected to the end of the rotating rod 51.

[0073] Thus, the operator can manually rotate the rotating wheel 53 to drive the rotating rod 51 to rotate. When the operator stops operating the rotating wheel 53, the push rod 32 can switch from the lifted state to the initial state under the action of the first elastic reset member 43.

[0074] In other embodiments, reference is made to Figure 2 , Figure 5 The drive unit 50 also includes a drive source, which is configured as a motor 55 or a rotary cylinder 56. The drive end of the drive source is connected to the rotating rod 51 to drive the rotating rod 51 to rotate.

[0075] Thus, when the push rod 32 is in the lifted state, as long as the drive source stops driving, the push rod 32 can switch from the lifted state to the initial state under the action of the first elastic reset member 43. Alternatively, the drive source can be reversed, and combined with the action of the first elastic reset member 43, the push rod 32 can switch from the lifted state to the initial state.

[0076] Continue to refer to Figure 1 and Figure 2 The support 10 may also include two side plates 13, the two ends of which can be connected to the upper support 11 and the lower platform 12 respectively. In this way, the upper support 11 can be supported above the lower platform 12 by the two side plates 13.

[0077] When the drive source is a motor 55, the motor 55 can be connected to the side plate 13, and the motor shaft of the motor 55 can be connected to the first pulley 45. The second pulley 46 can be connected to the rotating wheel 53 or directly to the rotating rod 51. A belt 47 is tensioned on the first pulley 45 and the second pulley 46 to transmit power. When the drive source is a rotary cylinder 56, it is further combined with… Figure 5 The rotary cylinder 56 can also be connected to the side plate 13. The drive end of the rotary cylinder 56 can be connected to the rotating wheel 53 or directly connected to the rotating rod 51. In some embodiments, a control box 70 is also provided. The control box 70 can be, for example, a button box. The control box 70 is used to control the start and stop of the motor 55 or the rotary cylinder 56, the direction of rotation, etc.

[0078] In this embodiment, the electro-injection device 100 further includes an adjustment assembly 60, which includes an adjustment rod 61 connected to the electro-injection platform 20 and a second elastic member 62 sleeved on the outer periphery of the adjustment rod 61. A through mounting hole 110 is provided on the upper bracket 11 at a position corresponding to the adjustment rod 61, and both the adjustment rod 61 and the second elastic member 62 pass through the mounting hole 110.

[0079] The second elastic element 62 is used to always apply an elastic force away from the upper support 11 to the electrical injection platform 20.

[0080] Generally, when the battery cell is supported on the bearing surface 22 of the electrical injection platform 20, another operating platform (not shown) presses against the bearing surface 22. After power is applied to the electrical injection platform 20 and the operating platform, electrical injection is performed on the battery cell. However, by providing a second elastic element 62, when the bearing surface 22 of the electrical injection platform 20 is not horizontal, the operating platform is compressed by the second elastic element 62 when it presses against the electrical injection platform 20. This allows the positional relationship between the electrical injection platform 20 and the operating platform to be adjusted, so that the battery cell can be better clamped between them for electrical injection testing.

[0081] Furthermore, the mounting hole 110 has a flange 111 on the side facing the lower platform 12, and a stepped surface 610 is provided between the two ends of the adjusting rod 61. The two ends of the second elastic member 62 abut against the flange 111 and the stepped surface 610, respectively.

[0082] In some embodiments, the end of the adjusting rod 61 is also connected to a limiting nut 63, the outer diameter of which is larger than the inner diameter of the flange portion 111, so as to prevent the adjusting rod 61 from coming out of the mounting hole 110.

[0083] Continue to refer to Figure 6 and Figure 7 In some embodiments, the upper bracket 11 includes a mounting strip 112 and a sleeve 113 with a flange 114 at one end. The sleeve 113 extends through the mounting strip 112, and the space inside the sleeve 113 forms the aforementioned mounting hole 110. The flange 114 of the sleeve 113 abuts against and is mounted to the surface of the mounting strip 112 facing the lower platform 12 by fasteners.

[0084] Furthermore, referring to Figure 2 and Figure 3 Multiple push rods 32 are connected to the side of the seat plate 31 facing the electric injection platform 20 and are perpendicular to the surface of the seat plate 31 facing the electric injection platform 20.

[0085] In some embodiments, the number of top rods 32 is four, and the line connecting the positions of the four top rods 32 forms a quadrilateral. Because there are four top rods 32 and the line connecting the positions of the four top rods 32 forms a quadrilateral, the battery cell 90 can be better supported.

[0086] The area on the base plate 31 located between the four push rods 32 can be hollowed out to reduce the weight of the equipment. This also prevents heat from the electrical injection platform 20 from being transferred to the base plate 31.

[0087] In this embodiment, reference is continued. Figure 1 The electro-injection device 100 also includes a wafer picker 80, which includes a gripping portion 81 and a plurality of pickers 82. The plurality of pickers 82 are arranged at intervals and are all connected to the gripping portion 81.

[0088] In this way, when the solar cell is lifted, the inserter 82 can be inserted into the gap between the solar cell and the electrical injection platform 20 to support and remove the solar cell.

[0089] Understandably, solar cells are inherently brittle and thin. During heating, they are subjected to thermal stress, making them even more fragile. In related technologies, when manually handling solar cells, if operators directly grasp them with gloves, improper technique or inaccurate force control often results in excessive external force on the silicon wafer, causing cracks, breaks, or chipped corners. However, by inserting the wafer-retrieving teeth 80 between the bearing surface 22 of the electro-injection platform 20 and the solar cell, the solar cell can be supported on the wafer-retrieving teeth 80. The solar cell can then be removed by moving the wafer-retrieving teeth 80, without directly grasping the solar cell, thus avoiding the aforementioned problems.

[0090] The following is combined with Figure 2 The working process of the electro-injection device 100 according to an embodiment of this application is described.

[0091] By pressing the button on the control box 70, i.e. the button box, the motor 55 is started, and the motor 55 drives the rotating rod 51 along a first direction (e.g., Figure 2 The top block 52 rotates counterclockwise (as shown), overcoming the elastic force of the first elastic reset member 43 and lifting the base plate 31. The base plate 31 then moves the top rods 32 away from the lower platform 12 until all four top rods 32 exceed the bearing surface 22 of the electrical injection platform 20. The pick-up teeth 80 are inserted between the bearing surface 22 of the electrical injection platform 20 and the battery cell. At this time, the control box 70 can be operated to reverse the motor 55 (or the control box 70 can be operated to disable the motor 55). Combined with the elastic force of the first elastic reset member 43, the base plate 31 and the top rods 32 move closer to the lower platform 12 and retract into the corresponding through hole 21. The battery cell can automatically fall onto the pick-up teeth 80, and the battery cell can be removed by moving the pick-up teeth 80. The method of using a rotary cylinder 56 is similar and will not be described in detail here. In addition, in the scheme of manually rotating the wheel 53 to rotate the rotating rod 51, after the pick-up tooth 80 is located below the battery cell, the wheel 53 can be released, and the push rod 32 can automatically return to its original position under the elastic force of the first elastic reset member 43. At this time, the battery cell is supported on the pick-up tooth 80, and the battery cell can be removed by moving the pick-up tooth 80.

[0092] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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, they should be considered to be within the scope of this specification.

[0093] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electrical injection apparatus, characterized by, include: The support includes an upper bracket and a lower platform that are positioned opposite each other and spaced apart; An electrical injection platform is mounted on the upper support, and several through holes are provided on the bearing surface of the electrical injection platform opposite to the lower platform. The lifting unit includes a base plate and a plurality of push rods connected to the base plate. The base plate is movably disposed on the lower platform and located between the electro-injection platform and the lower platform. The push rods are inserted into the through holes one by one. The push rods have an initial state and a lifting state. In the initial state, the top end of the push rod is located in the corresponding through hole. In the lifting state, the top end of the push rod extends out of the corresponding through hole toward the bearing surface side of the electro-injection platform. as well as A drive unit is provided to drive the base plate and the push rod to move away from the lower platform, so that the push rod switches from the initial state to the lifting state.

2. The electrical injection device of claim 1, wherein, The drive unit includes a rotating rod and a top block fixedly connected to the rotating rod. The rotating rod is rotatably supported on the lower platform by a support arm. When the rotating rod rotates in the first direction, the seat plate is lifted by the top block in a direction away from the lower platform, so as to drive the top rod to switch from the initial state to the lifted state.

3. The electrical injection device of claim 2, wherein, The seat plate is provided with a stop at the position corresponding to the top block. The stop is located on the surface of the seat plate facing the lower platform and is used to block the top block in the path of rotation along the first direction.

4. The electrical injection apparatus of claim 2, wherein, When the rotating rod rotates in the second direction, the seat plate falls back towards the lower platform, thereby causing the top rod to switch from the lifted state to the initial state, wherein the first direction and the second direction are opposite.

5. The electrical injection device of claim 4, wherein, The surfaces of the seat plate and the lower platform plate that are opposite to each other are provided with a guide sleeve on one of them and a guide shaft that is inserted into the guide sleeve and guides and cooperates with the guide sleeve. The guide shaft is arranged parallel to the top rod.

6. The electrical injection apparatus of claim 4, wherein, An elastic reset member is also connected between the seat plate and the lower platform plate, and the elastic reset member always applies an elastic force toward the lower platform plate to the seat plate.

7. The electrical injection device of claim 6, wherein, A rotating wheel is connected to the end of the rotating rod.

8. The electrical injection apparatus of claim 6, wherein, The drive unit further includes a drive source, which is configured as a motor or a rotary cylinder. The drive end of the drive source is connected to the rotating rod to drive the rotating rod to rotate.

9. The electrically injected device according to any of claims 1-8, characterized in that, The electro-injection device further includes an adjustment assembly, which includes an adjustment rod connected to the electro-injection platform and a second elastic element sleeved on the outer periphery of the adjustment rod; the upper bracket is provided with a through mounting hole corresponding to the position of the adjustment rod, and both the adjustment rod and the second elastic element pass through the mounting hole; The second elastic element is used to always apply an elastic force away from the upper support to the electro-injection platform.

10. The electrical injection apparatus of claim 9, wherein, The mounting hole has a flanged edge on the side facing the lower platform, and a stepped surface is provided between the two ends of the adjusting rod; The two ends of the second elastic member abut against the flange and the stepped surface, respectively.

11. The electrically injected device according to any of claims 1-8, wherein, The plurality of the push rods are all connected to the side of the base plate facing the electro-injection platform and are perpendicular to the surface of the base plate facing the electro-injection platform.

12. The electrically injected device according to any of claims 1-8, wherein, The electro-injection device further includes wafer pick-up teeth, which include a gripping portion and multiple teeth, the multiple teeth being arranged at intervals and all connected to the gripping portion.

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