Surface passivation equipment for TOPCon battery processing

Abstract

The utility model relates to the technical field of TOPCon battery surface passivation, and discloses surface passivation equipment for TOPCon battery processing, which comprises a mounting shell, a first supporting leg is fixedly mounted at the bottom of the mounting shell, a top cover is rotatably mounted at the top of the mounting shell, a handle is fixedly mounted at the top of the top cover, and a second supporting leg is mounted at the bottom of the mounting shell. TOPCon battery passivation adjusting mechanisms are arranged inside and outside the mounting shell, a first connecting pipe is arranged on the front face of the mounting shell, and an auxiliary temperature control mechanism is arranged on the back of the mounting shell. By arranging the TOPCon battery passivation adjusting mechanism, the TOPCon battery can be positioned, the TOPCon battery is prevented from shaking at will, the clamped TOPCon battery can be turned over so as to passivate the surfaces of different areas of the TOPCon battery, and by arranging the auxiliary temperature control mechanism, the temperature in the mounting shell can be dynamically adjusted so as to improve the passivation working efficiency and enhance the practicability of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of TOPCon battery surface passivation, in particular to surface passivation equipment for TOPCon battery processing. Background Art

[0002] TOPCon (tunneling oxide passivation contact) as a new passivation technology has become a research hotspot. This technology generates an ultra-thin tunneling oxide layer and a highly doped polysilicon layer on the surface of the battery. The passivation effect of the oxide layer and the field passivation effect of the highly doped polysilicon layer can greatly reduce the minority carrier recombination rate. At the same time, the highly doped polysilicon layer has good conductivity for majority carriers. Therefore, in the process of TOPCon battery processing, a surface passivation equipment for TOPCon battery processing is often used to passivate the surface of the TOPCon battery to improve the subsequent use of the battery.

[0003] The process flow of the existing surface passivation equipment for TOPCon battery processing is generally to place the TOPCon battery inside a special placement box, then seal the upper end of the passivation tank, and connect the hydrogen plasma generator to the inlet pipe to pass the generated hydrogen plasma into the interior of the passivation tank, so that the hydrogen ions in the plasma will be attracted and quickly injected into the surface of the TOPCon battery, which can passivate the silicon crystal defects in the battery cell in a short time. At the same time, a heating device is installed in the passivation tank, and the temperature of the environment inside the passivation tank can be increased by the heating device, thereby accelerating the passivation speed. Although the existing technology can place the TOPCon battery through the set placement box, because the TOPCon battery therein is not limited, the TOPCon battery will shake randomly during the subsequent passivation process, which will deteriorate the passivation effect. In addition, because the position of the placement box is relatively fixed in the existing technology, it is difficult to flip the TOPCon battery so that each end face is in contact with the hydrogen plasma and hot air. Therefore, we urgently need to improve a surface passivation equipment for TOPCon battery processing to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a surface passivation device for TOPCon battery processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surface passivation device for TOPCon battery processing, comprising a mounting shell, a first supporting leg fixedly mounted on the bottom of the mounting shell, a top cover rotatably mounted on the top of the mounting shell, a handle fixedly mounted on the top of the top cover, a TOPCon battery passivation adjustment mechanism is arranged inside and outside the mounting shell, a first connecting pipe is arranged on the front of the mounting shell, and an auxiliary temperature control mechanism is arranged on the back of the mounting shell.

[0006] The TOPCon battery passivation adjustment mechanism includes a positioning component and a flipping component, and the positioning component is arranged inside the flipping component.

[0007] Preferably, the positioning assembly includes a mounting frame, which is movably mounted inside a mounting shell, a first motor is fixedly mounted inside the mounting frame, a bevel gear disk is fixedly mounted on an output shaft of the first motor, a mounting plate is fixedly mounted outside the mounting frame, a screw is rotatably mounted inside the mounting plate, a bevel gear is fixedly mounted outside the screw, a limiting rod is fixedly mounted outside the mounting plate, a first connecting plate is threadedly mounted on the outside of the screw, a positioning frame is fixedly mounted outside the first connecting plate, a second connecting plate is fixedly mounted on the side of the positioning frame away from the first connecting plate, a guide rod is slidably mounted inside the second connecting plate, and a first mounting frame is movably mounted inside the mounting shell to facilitate clamping and limiting of the TOPCon battery to be passivated.

[0008] Preferably, the mounting plate, screw, bevel gear, first connecting plate, positioning frame, second connecting plate and guide rod are all provided in three groups, the bevel gear is meshed with the bevel gear disk, through holes are opened at positions corresponding to the first connecting plate and the limiting rod, the limiting rod passes through the through holes, and the guide rod is fixedly installed on the first mounting frame away from the side of the second connecting plate, so as to facilitate the positioning of multiple groups of TOPCon batteries at one time and avoid the phenomenon of random shaking of the TOPCon batteries during the passivation process.

[0009] Preferably, the flipping assembly includes a first connecting column, the first connecting column is fixedly installed on the outside of the mounting frame, a second connecting column is fixedly installed on the right side of the first mounting frame, a first gear is fixedly installed on the outside of the second connecting column, a second mounting frame is fixedly installed on the right side of the mounting shell, a motor seat is fixedly installed on the right side of the second mounting frame, a second motor is fixedly installed inside the motor seat, and a second gear is fixedly installed on the output shaft of the second motor, so as to facilitate the flipping of the TOPCon battery inside the positioning frame to improve the full contact with the hydrogen plasma material and ensure work efficiency.

[0010] Preferably, the first connecting column is rotatably mounted on the mounting shell away from one side of the mounting frame, the second connecting column is rotatably mounted on the right side of the mounting shell, and the second gear is meshed with the first gear, so as to facilitate flipping of the TOPCon battery to be passivated.

[0011] Preferably, the auxiliary temperature control mechanism includes a connecting frame, which is fixedly installed on the back of the mounting shell, a second supporting leg is fixedly installed on the bottom of the connecting frame, a third mounting frame is fixedly installed inside the connecting frame, a fan is movably installed outside the third mounting frame, an electric heating rod is fixedly installed inside the connecting frame, a second connecting pipe is fixedly installed on the front of the connecting frame, and a connecting head is fixedly installed on the side of the second connecting pipe away from the connecting frame, so as to dynamically adjust the temperature inside the mounting shell according to actual passivation operation needs, so as to improve the passivation work efficiency and enhance the practicality of the device.

[0012] Preferably, the connection frame and the second connection tube are provided with connection holes at corresponding positions, the second connection tube passes through the connection holes, and the installation shell and the second connection tube and the connection head are provided with installation grooves at corresponding positions, so as to facilitate the supply of the generated hot air into the interior of the installation shell.

[0013] Compared with the prior art, the utility model provides a surface passivation device for TOPCon battery processing, which has the following beneficial effects:

[0014] 1. The surface passivation equipment for TOPCon battery processing can position multiple groups of TOPCon batteries at one time by setting the TOPCon battery passivation adjustment mechanism during use, so as to avoid the phenomenon of random shaking of the TOPCon batteries during the passivation process, and can flip the clamped TOPCon batteries according to the actual working conditions to realize the surface passivation work on different areas and end faces of the TOPCon batteries.

[0015] 2. The TOPCon battery processing surface passivation equipment is provided with an auxiliary temperature control mechanism. During use, the fan, electric heating rod, second connecting pipe and connecting head are used in conjunction to dynamically adjust the temperature inside the installation shell to improve the passivation work efficiency and enhance the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 3This is a schematic diagram of the disassembled structure of the positioning component of the utility model;

[0020] Figure 4 This is a schematic diagram of the disassembled structure of the flip assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the auxiliary temperature control mechanism of the utility model.

[0022] In the figure: 1, mounting shell; 2, first supporting leg; 3, top cover; 4, handle; 5, TOPCon battery passivation adjustment mechanism; 51, positioning assembly; 511, mounting frame; 512, first motor; 513, bevel gear plate; 514, mounting plate; 515, screw rod; 516, bevel gear; 517, limit rod; 518, first connecting plate; 519, positioning frame; 5110, second connecting plate; 5111, guide rod; 5112, The first mounting frame; 52, the flip assembly; 521, the first connecting column; 522, the second connecting column; 523, the first gear; 524, the second mounting frame; 525, the motor seat; 526, the second motor; 527, the second gear; 6, the first connecting pipe; 7, the auxiliary temperature control mechanism; 71, the connecting frame; 72, the second supporting leg; 73, the third mounting frame; 74, the fan; 75, the electric heating rod; 76, the second connecting pipe; 77, the connecting head. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] See also Figure 1-4The utility model provides a technical solution: a surface passivation device for TOPCon battery processing, comprising a mounting shell 1, a first supporting leg 2 is fixedly installed at the bottom of the mounting shell 1, a top cover 3 is rotatably installed on the top of the mounting shell 1, a handle 4 is fixedly installed on the top of the top cover 3, a TOPCon battery passivation adjustment mechanism 5 is arranged inside and outside the mounting shell 1, a first connecting pipe 6 is arranged on the front of the mounting shell 1, and an auxiliary temperature control mechanism 7 is arranged on the back of the mounting shell 1.

[0027] The TOPCon battery passivation adjustment mechanism 5 comprises a positioning component 51 and a flipping component 52 , wherein the positioning component 51 is arranged inside the flipping component 52 .

[0028] Furthermore, the positioning assembly 51 includes a mounting frame 511, which is movably mounted inside the mounting shell 1, a first motor 512 is fixedly mounted inside the mounting frame 511, a bevel gear disk 513 is fixedly mounted on the output shaft of the first motor 512, a mounting plate 514 is fixedly mounted outside the mounting frame 511, a screw 515 is rotatably mounted inside the mounting plate 514, a bevel gear 516 is fixedly mounted outside the screw 515, a limiting rod 517 is fixedly mounted outside the mounting plate 514, a first connecting plate 518 is threadedly mounted on the outside of the screw 515, a positioning frame 519 is fixedly mounted outside the first connecting plate 518, a second connecting plate 5110 is fixedly mounted on the side of the positioning frame 519 away from the first connecting plate 518, a guide rod 5111 is slidably mounted inside the second connecting plate 5110, and a first mounting frame 5112 is movably mounted inside the mounting shell 1, so as to clamp and limit the TOPCon battery to be passivated.

[0029] Furthermore, the mounting plate 514, the screw 515, the bevel gear 516, the first connecting plate 518, the positioning frame 519, the second connecting plate 5110, and the guide rod 5111 are all provided in three groups. The bevel gear 516 is meshed with the bevel gear disc 513. Through holes are provided at corresponding positions of the first connecting plate 518 and the limiting rod 517. The limiting rod 517 passes through the through holes. The guide rod 5111 is fixedly installed on the side away from the second connecting plate 5110 and the first mounting frame 5112, so as to facilitate the positioning of multiple groups of TOPCon batteries at one time and avoid the phenomenon of random shaking of the TOPCon batteries during the passivation process.

[0030] Furthermore, the flip assembly 52 includes a first connecting column 521, which is fixedly installed on the outside of the mounting frame 511, a second connecting column 522 is fixedly installed on the right side of the first mounting frame 5112, a first gear 523 is fixedly installed on the outside of the second connecting column 522, a second mounting frame 524 is fixedly installed on the right side of the mounting shell 1, a motor base 525 is fixedly installed on the right side of the second mounting frame 524, a second motor 526 is fixedly installed inside the motor base 525, and a second gear 527 is fixedly installed on the output shaft of the second motor 526, so as to facilitate the flipping of the TOPCon battery inside the positioning frame 519 to improve the full contact with the hydrogen plasma material and ensure work efficiency.

[0031] Furthermore, the first connecting column 521 is rotatably mounted on the side of the mounting frame 511 away from the mounting shell 1, the second connecting column 522 is rotatably mounted on the right side of the mounting shell 1, and the second gear 527 is engaged with the first gear 523, so as to facilitate flipping of the TOPCon battery to be passivated.

[0032] Embodiment 2:

[0033] See also Figure 5 , and combined with the first embodiment, it is further obtained that the auxiliary temperature control mechanism 7 includes a connecting frame 71, the connecting frame 71 is fixedly installed on the back of the mounting shell 1, a second supporting leg 72 is fixedly installed on the bottom of the connecting frame 71, a third mounting frame 73 is fixedly installed inside the connecting frame 71, a fan 74 is movably installed outside the third mounting frame 73, an electric heating rod 75 is fixedly installed inside the connecting frame 71, a second connecting pipe 76 is fixedly installed on the front of the connecting frame 71, and a connecting head 77 is fixedly installed on the side of the second connecting pipe 76 away from the connecting frame 71, so as to facilitate dynamic adjustment of the temperature inside the mounting shell 1 according to the actual passivation operation needs, so as to improve the passivation work efficiency and enhance the practicality of the device.

[0034] Furthermore, connection holes are opened at positions corresponding to the connection frame 71 and the second connection tube 76 , and the second connection tube 76 passes through the connection holes. Installation grooves are opened at positions corresponding to the installation shell 1 , the second connection tube 76 , and the connection head 77 , so as to facilitate supplying the generated hot air into the interior of the installation shell 1 .

[0035] In actual operation, when the device is used, first pull the handle 4, then open the top cover 3, and place the TOPCon battery to be passivated inside the three groups of positioning frames 519. After placement, control the first motor 512 to drive the bevel gear 513 to rotate, so that the bevel gear 516 meshing therewith rotates, thereby causing the screw 515 to rotate inside the mounting plate 514. Under the limiting action of the limiting rod 517, the first connecting plate 518 outside the screw 515 will move in a centering manner. With the auxiliary action of the guide rod 5111, the three groups of positioning frames 519 will move in a centering manner, thereby clamping and limiting the TOPCon battery placed therein, so as to avoid the phenomenon of random shaking of the TOPCon battery during the processing. After clamping, the first connecting tube 6 is externally connected to the hydrogen plasma generator to generate hydrogen. The hydrogen ions in the plasma are attracted and quickly injected into the surface of the TOPCon battery to perform the passivation operation. To increase the passivation efficiency, the electric heating rod 75 can be turned on to generate the required temperature, and then the fan 74 can be turned on to blow hot air into the interior of the mounting shell 1 through the second connecting pipe 76 and the connecting head 77 to improve the passivation efficiency. To improve the passivation effect of each area of ​​the TOPCon battery, the second motor 526 can be turned on to drive the second gear 527 to rotate, thereby rotating the first gear 523 meshing therewith, thereby causing the first mounting frame 5112 to rotate synchronously. Under the action of the first connecting column 521, the TOPCon battery inside the positioning frame 519 can be turned over to improve the full contact with the hydrogen plasma and hot air, thereby ensuring the passivation effect of the TOPCon battery.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A surface passivation device for TOPCon battery processing, comprising a mounting shell (1), characterized in that: A first supporting leg (2) is fixedly mounted on the bottom of the mounting shell (1); a top cover (3) is rotatably mounted on the top of the mounting shell (1); a handle (4) is fixedly mounted on the top of the top cover (3); a TOPCon battery passivation adjustment mechanism (5) is arranged inside and outside the mounting shell (1); a first connecting pipe (6) is arranged on the front of the mounting shell (1); and an auxiliary temperature control mechanism (7) is arranged on the back of the mounting shell (1); The TOPCon battery passivation adjustment mechanism (5) comprises a positioning component (51) and a flipping component (52), wherein the positioning component (51) is arranged inside the flipping component (52); The positioning assembly (51) comprises a mounting frame (511), the mounting frame (511) being movably mounted inside the mounting shell (1), a first motor (512) being fixedly mounted inside the mounting frame (511), a bevel gear disc (513) being fixedly mounted on the output shaft of the first motor (512), a mounting plate (514) being fixedly mounted outside the mounting frame (511), a screw rod (515) being rotatably mounted inside the mounting plate (514), a bevel gear (516) being fixedly mounted outside the screw rod (515), and the The mounting plate (514) is fixedly mounted with a limiting rod (517) on the outside, the screw rod (515) is threadedly mounted with a first connecting plate (518) on the outside, the first connecting plate (518) is fixedly mounted with a positioning frame (519) on the outside, the positioning frame (519) is fixedly mounted with a second connecting plate (5110) on a side away from the first connecting plate (518), the second connecting plate (5110) is slidably mounted with a guide rod (5111) inside, and the mounting shell (1) is movably mounted with a first mounting frame (5112) inside; The flip assembly (52) comprises a first connecting column (521), the first connecting column (521) is fixedly mounted on the outside of the mounting frame (511), a second connecting column (522) is fixedly mounted on the right side of the first mounting frame (5112), a first gear (523) is fixedly mounted on the outside of the second connecting column (522), a second mounting frame (524) is fixedly mounted on the right side of the mounting shell (1), a motor seat (525) is fixedly mounted on the right side of the second mounting frame (524), a second motor (526) is fixedly mounted inside the motor seat (525), and a second gear (527) is fixedly mounted on the output shaft of the second motor (526).

2. A surface passivation device for TOPCon battery processing according to claim 1, characterized in that: The mounting plate (514), the screw rod (515), the bevel gear (516), the first connecting plate (518), the positioning frame (519), the second connecting plate (5110), and the guide rod (5111) are all provided in three groups. The bevel gear (516) is meshed with the bevel gear plate (513). Through holes are provided at corresponding positions of the first connecting plate (518) and the limiting rod (517). The limiting rod (517) passes through the through holes. The guide rod (5111) is fixedly mounted on the first mounting frame (5112) on the side away from the second connecting plate (5110).

3. A surface passivation device for TOPCon battery processing according to claim 1, characterized in that: The first connecting column (521) is rotatably mounted on the side of the mounting shell (1) away from the mounting frame (511), the second connecting column (522) is rotatably mounted on the right side of the mounting shell (1), and the second gear (527) is meshed with the first gear (523).

4. A surface passivation device for TOPCon battery processing according to claim 1, characterized in that: The auxiliary temperature control mechanism (7) comprises a connection frame (71), the connection frame (71) is fixedly mounted on the back of the mounting shell (1), a second supporting leg (72) is fixedly mounted on the bottom of the connection frame (71), a third mounting frame (73) is fixedly mounted inside the connection frame (71), a fan (74) is movably mounted outside the third mounting frame (73), an electric heating rod (75) is fixedly mounted inside the connection frame (71), a second connecting pipe (76) is fixedly mounted on the front of the connection frame (71), and a connecting head (77) is fixedly mounted on the side of the second connecting pipe (76) away from the connection frame (71).

5. A surface passivation device for TOPCon battery processing according to claim 4, characterized in that: The connection frame (71) and the second connection tube (76) are provided with connection holes at positions corresponding to each other, the second connection tube (76) passes through the connection holes, and the installation shell (1) and the second connection tube (76) and the connection head (77) are provided with installation grooves at positions corresponding to each other.

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