A high-reliability and fast-connection module for low-cost perovskite crystalline silicon composite tandem solar cells suitable for space environment

Abstract

The utility model relates to a space environment adaptable low-cost perovskite crystalline silicon composite laminated solar cell high reliability quick connection module, comprising a first frame and a second frame connected, the first frame and the second frame are detachably installed with solar cells, and the first frame and the second frame are connected by a plurality of first connection mechanisms. Compared with the prior art, the utility model connects the first frame and the second frame into a whole through a plurality of first connection mechanisms, and replaces the traditional welding method with a mechanical connection method. The mechanical connection method is simple to operate, has low technical requirements for personnel, does not cause secondary damage to the solar cell, and effectively improves the stability of the solar cell.

Description

Technical Field

[0001] The utility model relates to a field, in particular to a high-reliability fast connection module of a low-cost perovskite crystalline silicon composite laminated solar cell adaptable to a space environment. Background Art

[0002] Solar cells are semiconductor components that can effectively absorb solar energy and convert it into electrical energy. Most of them use semiconductor materials such as silicon and selenium to convert solar light energy into electrical energy. They have the advantages of high reliability, long life, and high conversion efficiency. They can be used as power sources for artificial satellites, navigation lights, transistor radios, etc.

[0003] Most solar cell installation frames are connected by welding, which requires high technical skills of welders, and the welding effect is unstable. In addition, non-standard welding methods can easily cause secondary damage to solar cells, resulting in unstable connections and affecting the performance of solar cells. In addition, traditional solar cells have weak functional protection while ensuring transmittance. Utility Model Content

[0004] The purpose of the present utility model is to overcome at least one of the defects of the above-mentioned prior art and to provide a high-reliability quick connection module for low-cost perovskite crystalline silicon composite stacked solar cells that is adaptable to space environment. The first frame and the second frame are connected into a whole through multiple first connecting mechanisms, and the traditional welding method is replaced by a mechanical connection method. The mechanical connection method is simple to operate, has low technical requirements for personnel, will not cause secondary damage to the solar cells, and effectively improves the stability of the solar cells.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A space environment-adaptable low-cost perovskite crystalline silicon composite laminated solar cell high-reliability quick connection module comprises a first frame and a second frame connected to each other, wherein solar cells are detachably installed in the first frame and the second frame.

[0007] The first frame and the second frame are connected via a plurality of first connecting mechanisms;

[0008] The first connecting mechanism comprises: a first connecting rod arranged on the outer wall surface of the first frame; a first connecting groove arranged on the outer wall surface of the second frame, which faces the first connecting rod, and the outer wall of the first connecting groove is provided with a first mounting groove connected with the first connecting groove; a first locking assembly arranged in the second frame, which comprises a first rotating wheel facing the bottom of the first connecting groove, and a first elastic block arranged in the first mounting groove; the first rotating wheel is provided with a first movable rod and a second movable rod eccentrically hinged to it in sequence along its rotation direction; an end of the first movable rod away from the first rotating wheel passes through the bottom of the first connecting groove and is hinged to the first movable block slidably arranged in the first connecting groove; an end of the second movable rod away from the first rotating wheel is inserted into the first mounting groove and abuts against the protruding end of the first elastic block;

[0009] When the first connecting rod is inserted into the first connecting groove, the first movable block drives the first rotating wheel to rotate under the squeezing of the first connecting rod, and the second movable rod then withdraws from the first installation groove, and the first elastic block bounces into the groove set on the outer wall of the first connecting rod to connect the first frame with the second frame.

[0010] Furthermore, the opening of the first mounting groove faces the outer wall surface of the second frame.

[0011] Furthermore, a locking block is provided on one side of the first movable block facing the bottom of the first connecting groove; a locking groove is provided on the outer wall surface of the first rotating wheel; as the first movable block moves toward the bottom of the first connecting groove, the locking block extends out of the bottom of the first connecting groove and enters the locking groove.

[0012] Furthermore, the first elastic block includes a first spring and a first block; one end of the first spring is connected to the bottom of the first installation groove, and the other end is connected to the first block.

[0013] Furthermore, a plurality of second connecting mechanisms are provided between the first frame and the second frame;

[0014] The second connecting mechanism includes: a second connecting rod arranged on the outer wall surface of the first frame, and its end portion facing away from the outer wall surface of the first frame is hook-shaped; a second connecting groove arranged on the outer wall surface of the second frame, which is opposite to the second connecting rod; a second elastic block is arranged on the groove wall of the second connecting groove; when the second connecting rod is inserted into the second connecting groove, the hook-shaped end portion of the second connecting rod clamps the second elastic block.

[0015] Furthermore, the end of the second elastic block abutting against the second connecting rod is hemispherical.

[0016] Furthermore, the second elastic block includes a second spring and a second block; one end of the second spring is connected to the bottom of the second mounting groove arranged on the groove wall of the second connecting groove, and the other end is connected to the second block; when the second block is squeezed by the hook-shaped end of the second connecting rod, the second block retracts into the second mounting groove.

[0017] Furthermore, there are at least two of the first connecting mechanisms and the second connecting mechanisms.

[0018] Furthermore, when there are two first connecting mechanisms and two second connecting mechanisms, the two first connecting mechanisms are arranged between the two second connecting mechanisms.

[0019] Furthermore, a thin film is arranged on the surface of the solar cell; the thin film is formed by stacking a conductive layer, a high refractive index layer and a low refractive index layer, and the conductive layer faces the solar cell. Preferably, the outer layer of the thin film of the solar cell adopts SiO2 low refractive index material, the middle layer selects Ti2O3 as a high refractive index material, and an ITO conductive layer is added to the bottom layer to achieve static discharge.

[0020] Compared with the prior art, the utility model has the following advantages:

[0021] (1) The utility model connects the first frame and the second frame into a whole through multiple first connecting mechanisms, and replaces the traditional welding method with a mechanical connection method. The mechanical connection method is simple to operate, has low technical requirements for personnel, will not cause secondary damage to the solar cell, and effectively improves the stability of the solar cell.

[0022] (2) In order to improve the connection capability between the first frame and the second frame, the utility model further provides a plurality of second connection mechanisms between the first frame and the second frame.

[0023] (3) The thin film material of the upper layer of the solar cell of the utility model adopts a multifunctional air encapsulation layer structure, which can enhance the protection of the solar cell while ensuring the transmittance, increase the service life of the solar cell, and improve the use efficiency of the solar cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the first frame and the second frame before being connected in the embodiment;

[0025] Figure 2 is a schematic diagram of a first frame and a second frame connected in an embodiment;

[0026] Figure 3 is a schematic diagram of a first connecting mechanism in an embodiment;

[0027] Figure 4 is a cross-sectional view of the first connecting mechanism in the embodiment;

[0028] Figure 5 is a schematic diagram of a second connecting mechanism in the embodiment;

[0029] Figure 6 is a positional relationship diagram of the first connecting mechanism and the second connecting mechanism in the embodiment;

[0030] Figure 7 A schematic diagram of the solar cell structure in the embodiment;

[0031] As shown in the figure: 11-first frame; 12-second frame; 101-solar cell; 201-first movable block; 202-first movable rod; 203-first rotating wheel; 204-second movable rod; 205-first mounting groove; 206-first spring; 207-first clamping block; 208-first connecting rod; 209-locking block; 210-first connecting groove; 211-clamping groove; 212-locking groove; 301-second clamping block; 302-second spring; 303-second connecting rod; 304-second connecting groove; 305-second mounting groove;

[0032] a-Multifunctional optical film system; b-High transmittance encapsulation layer; c-Perovskite / BC composite laminated solar cell. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0034] The utility model provides a space environment adaptable low-cost perovskite crystalline silicon composite laminated solar cell high-reliability quick connection module, comprising a first frame 11 and a second frame 12 connected to each other, wherein solar cells 101 are detachably installed in the first frame 11 and the second frame 12, and the first frame 11 and the second frame 12 are connected to each other through a plurality of first connection mechanisms;

[0035] The first connection mechanism comprises: a first connection rod 208 arranged on the outer wall surface of the first frame 11; a first connection groove 210 arranged on the outer wall surface of the second frame 12, which is opposite to the first connection rod 208, and the outer wall of the first connection groove 210 is provided with a first installation groove 205 connected with the first connection groove 210; a first locking assembly arranged in the second frame 12, which comprises a first rotating wheel 203 opposite to the bottom of the first connecting groove 210, and a first elastic block arranged in the first installation groove 205; the first rotating wheel 203 is sequentially provided with a plurality of elastic blocks offset from the first rotating wheel 203 along its rotation direction; The first movable rod 202 and the second movable rod 204 are hinged at the center; the end of the first movable rod 202 away from the first rotating wheel 203 passes through the bottom of the first connecting groove 210 and is hinged to the first movable block 201 slidably set in the first connecting groove 210; the end of the second movable rod 204 away from the first rotating wheel 203 is inserted into the first installation groove 205 and abuts against the protruding end of the first elastic block; specifically, the end of the second movable rod 204 away from the first rotating wheel 203 is inserted into the entrance of the first installation groove 205, and a sliding rail is also provided at the entrance to facilitate the sliding of the second movable rod 204.

[0036] When the first connecting rod 208 is inserted into the first connecting groove 210, the first movable block 201 drives the first rotating wheel 203 to rotate under the squeezing of the first connecting rod 208, and the second movable rod 204 then withdraws from the first installation groove 205, and the first elastic block pops into the groove 211 set on the outer wall of the first connecting rod 208 to connect the first frame 11 with the second frame 12.

[0037] In an embodiment of the present invention, the opening of the first mounting groove 205 faces the outer wall surface of the second frame 12 .

[0038] In one embodiment of the utility model, a locking block 209 is provided on one side of the first movable block 201 facing the bottom of the first connecting groove 210; a locking groove 212 is provided on the outer wall surface of the first rotating wheel 203; as the first movable block 201 moves toward the bottom of the first connecting groove 210, the locking block 209 extends out of the bottom of the first connecting groove 210 and enters the locking groove 212.

[0039] In an embodiment of the present invention, the first elastic block includes a first spring 206 and a first block 207 ; one end of the first spring 206 is connected to the bottom of the first installation slot 205 , and the other end is connected to the first block 207 .

[0040] In one embodiment of the utility model, a plurality of second connection mechanisms are further provided between the first frame 11 and the second frame 12; the second connection mechanisms include: a second connection rod 303 provided on the outer wall of the first frame 11, the end of which is away from the outer wall of the first frame 11 and is hook-shaped; a second connection groove 304 provided on the outer wall of the second frame 12, which is directly opposite to the second connection rod 303; a second elastic block is provided on the groove wall of the second connection groove 304;

[0041] When the second connecting rod 303 is inserted into the second connecting groove 304 , the hook-shaped end of the second connecting rod 303 clamps the second elastic clamping block.

[0042] In an embodiment of the present invention, the end of the second elastic block abutting against the second connecting rod 303 is hemispherical.

[0043] In one embodiment of the present invention, the second elastic block includes a second spring 302 and a second block 301; one end of the second spring 302 is connected to the bottom of a second mounting groove 305 provided on the groove wall of the second connecting groove 304, and the other end is connected to the second block 301;

[0044] When the second clamping block 301 is pressed by the hook-shaped end of the second connecting rod 303 , the second clamping block 301 retracts into the second installation groove 305 .

[0045] In an embodiment of the present invention, when there are two first connecting mechanisms and two second connecting mechanisms, the two first connecting mechanisms are arranged between the two second connecting mechanisms.

[0046] In one embodiment of the utility model, a thin film is disposed on the surface of the solar cell 101 ; the thin film is formed by stacking a conductive layer, a high-pass encapsulation layer and a low-refractive index layer, and the conductive layer faces the solar cell 101 .

[0047] Example

[0048] The utility model provides a space environment adaptable low-cost perovskite crystalline silicon composite laminated solar cell high-reliability fast connection module, comprising a first frame 11 and a second frame 12 connected, wherein solar cells 101 are detachably installed in the first frame 11 and the second frame 12, and the first frame 11 and the second frame 12 are connected through two symmetrically arranged first connecting mechanisms; in order to further improve the connection force between the first frame 11 and the second frame 12, two symmetrically arranged second connecting mechanisms are further arranged between the first frame 11 and the second frame 12. A conductive wire installation area is arranged between the two first connecting mechanisms and between the two second connecting mechanisms.

[0049] In order to realize the connection between the first frame 11 and the second frame 12, two first connecting mechanisms are arranged between the first frame 11 and the second frame 12, wherein the first connecting mechanism comprises: a first movable block 201, a first rotating wheel 203, and a first clamping block 207. A sliding groove is arranged in the second frame 12, the first movable block 201 is slidably installed in the second frame 12, one side of the first movable block 201 can be in contact and connected with the first connecting rod 208 of the first frame 11, the first movable block 201 can slide and adjust its position in the second frame 12 under the push of the first connecting rod 208, the other side of the first movable block 201 is hinged to one end of the first movable rod 202, the other end of the first movable rod 202 is hinged to a non-center position of one side of the first rotating wheel 203, the first rotating wheel 203 is rotatably installed in the second frame 12, and the other side of the first rotating wheel 203 is hinged to one end of the second movable rod 204 at a non-center position. The other end of the second movable rod 204 is slidably connected to the first mounting groove 205. The upper end surface where the first mounting groove 205 is connected to the second movable rod 204 is an inclined surface, which can provide space for the movement of the second movable rod 204. The second movable rod 204 is in contact with the first spring 206. The state of the first spring 206 when in contact with the second movable rod 204 is a compressed state. When the second movable rod 204 is not moving, it is stuck between the first spring 206 and the first clamping block 207, and the first spring 206 is kept in a compressed state. The first clamping block 207 is in the first mounting groove 205, and the first mounting groove 205 is fixedly installed in the second frame 12. One end of the first spring 206 is fixedly connected to the inside of the first mounting groove 205, and the other end of the first spring 206 is fixedly connected to the first clamping block 207. A clamping groove corresponding to the first clamping block 207 is provided on the first connecting rod 208.

[0050] The first connecting rod 208 in another identical device pushes the first movable block 201 to slide in the second frame 12. The sliding of the first movable block 201 drives the first movable rod 202 to move. The first movable rod 202 pushes the first rotating wheel 203 to rotate in the second frame 12. The rotation of the second frame 12 drives one end of the second movable rod 204 on the other side to move. The other end of the second movable rod 204 slides in the first mounting groove 205 and gradually moves away from the first spring 206. When the second movable rod 204 completely leaves the first spring 206, the first spring 206 changes from a compressed state to a telescopic state, and the first clamping block 207 is clamped into the clamping groove of the first connecting rod 208.

[0051] In order to realize the locking function of the first connection mechanism, a locking block 209 is fixedly installed on the first movable block 201, and a locking groove corresponding to the locking block 209 is provided on the first rotating wheel 203. When the first movable block 201 slides in the second frame 12, the locking block 209 moves in the same direction as the movable block 201, and the first movable block 201 drives the first movable rod 202 to move, and the first movable rod 202 drives the first rotating wheel 203 to rotate, so that the locking groove of the first rotating wheel 203 is gradually aligned with the locking block 209, and the locking block 209 gradually enters the locking groove of the first rotating wheel 203. At this time, the rotating wheel 203 will no longer rotate under the action of the locking block 209.

[0052] In order to improve the connection ability between the first frame 11 and the second frame 12, one end of the second spring 302 is fixedly connected inside the second frame 12, and the other end of the second spring 302 is fixedly connected to the lower end of the second block 301. The upper end of the second block 301 is hemispherical, and the inner side of the second connecting rod 303 is hook-shaped. The outer side of the hook-shaped inner side of the second connecting rod 303 is provided with an inclined surface. The hook position of the second connecting rod 303 has the same diameter as the second block 301, so the hook position of the second connecting rod 303 can be in contact and connected with the second block 301. When the second connecting rod 303 extends into the second frame 12, the inclined surface of the outer surface of the second connecting rod 303 contacts the upper end of the second block 301, and the second block 301 is subjected to pressure from the surface of the second connecting rod 303. The second block 301 moves downward, and the second spring 302 is compressed. When the inner side of the second connecting rod 303 reaches the position of the second block 301, the second block 301 loses pressure, and the second spring 302 extends, causing the second block 301 to extend and contact the inner side of the second connecting rod 303, thereby completing the connection between the second block 301 and the second connecting rod 303.

[0053] In order to improve the durability of the thin film on the surface of the solar cell, the thin film material must have good mechanical firmness and chemical stability. The thin film material is a multifunctional air encapsulation layer structure. The surface of the film is susceptible to material damage caused by ultraviolet radiation and high-energy particles. Therefore, it is necessary to select radiation-resistant materials as the space environment and use SiO2 low-refractive index materials. The existing SiO2 meets the above requirements and has excellent radiation resistance. Ti2O3 is selected as the high-refractive index material for the high-throughput encapsulation layer in the middle of the thin film material. This material has high transparency in the visible light region, strong mechanical firmness, chemical stability and radiation resistance, and very small stress. At the same time, it is loaded with a multifunctional optical film system with radiation resistance + infrared absorption + self-cleaning, and is easy to encapsulate and combine in the process. The bottom layer of the thin film material adds an ITO conductive layer to achieve electrostatic conduction, which can reduce the operating temperature of the solar cell array by reducing infrared and ultraviolet absorption.

[0054] The solar cell itself adopts a perovskite / crystalline silicon composite stacked solar cell, which is a solar cell with existing technology.

[0055] Working principle:

[0056] The first connecting rod 208 of the first frame 11 is extended into the second frame 12. The first connecting rod 208 pushes the first movable block 201 to slide in the second frame 12. The second movable rod 204 moves away from the first spring 206. The first spring 206 changes from a compressed state to a telescopic state, and the first clamping block 207 is clamped into the clamping groove of the first connecting rod 208.

[0057] While the first connecting rod 208 is extended into the second frame 12 , the second connecting rod 303 is extended into the second frame 12 to complete the connection between the second connecting rod 303 and the second clamping block 301 .

[0058] The first clamping block 207 is clamped into the first connecting rod 208 and connected with the second connecting rod 303 and the second clamping block 301 to complete the connection between the adjacent first frame 11 and the second frame 12.

[0059] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A space environment-adaptable low-cost perovskite crystalline silicon composite stacked solar cell high-reliability quick connection module, comprising a first frame (11) and a second frame (12) connected to each other, wherein solar cells (101) are detachably installed in the first frame (11) and the second frame (12), characterized in that: The first frame (11) and the second frame (12) are connected via a plurality of first connecting mechanisms; The first connecting mechanism comprises: A first connecting rod (208) disposed on an outer wall surface of the first frame (11); A first connecting groove (210) is arranged on the outer wall surface of the second frame (12), facing the first connecting rod (208), and the outer wall of the first connecting groove (210) is provided with a first mounting groove (205) connected to the first connecting groove (210); A first locking assembly is arranged in the second frame (12), comprising a first rotating wheel (203) facing the bottom of the first connecting groove (210), and a first elastic block arranged in the first installation groove (205); the first rotating wheel (203) is provided with a first movable rod (202) and a second movable rod (204) eccentrically hinged therewith in sequence along its rotation direction; the end of the first movable rod (202) away from the first rotating wheel (203) passes through the bottom of the first connecting groove (210) and is hinged to the first movable block (201) slidably arranged in the first connecting groove (210); the end of the second movable rod (204) away from the first rotating wheel (203) is inserted into the first installation groove (205) and abuts against the protruding end of the first elastic block; When the first connecting rod (208) is inserted into the first connecting groove (210), the first movable block (201) drives the first rotating wheel (203) to rotate under the pressure of the first connecting rod (208), and the second movable rod (204) then withdraws from the first installation groove (205), and the first elastic block pops into the groove (211) provided on the outer wall of the first connecting rod (208), so as to realize the connection between the first frame (11) and the second frame (12).

2. According to claim 1, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: The opening of the first installation groove (205) faces the outer wall surface of the second frame (12).

3. According to claim 1, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: A locking block (209) is provided on one side of the first movable block (201) facing the bottom of the first connecting groove (210); a locking groove (212) is provided on the outer wall surface of the first rotating wheel (203); as the first movable block (201) moves toward the bottom of the first connecting groove (210), the locking block (209) extends out of the bottom of the first connecting groove (210) and enters the locking groove (212).

4. According to claim 1, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: The first elastic block comprises a first spring (206) and a first block (207); One end of the first spring (206) is connected to the bottom of the first installation slot (205), and the other end is connected to the first clamping block (207).

5. According to claim 1, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: A plurality of second connecting mechanisms are also provided between the first frame (11) and the second frame (12); The second connecting mechanism comprises: A second connecting rod (303) is arranged on the outer wall surface of the first frame (11), and the end of the second connecting rod (303) facing away from the outer wall surface of the first frame (11) is hook-shaped; A second connecting groove (304) is arranged on the outer wall surface of the second frame (12), and is directly opposite to the second connecting rod (303); a second elastic block is arranged on the groove wall of the second connecting groove (304); When the second connecting rod (303) is inserted into the second connecting groove (304), the hook-shaped end of the second connecting rod (303) clamps the second elastic clamping block.

6. According to claim 5, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: The end of the second elastic block abutting against the second connecting rod (303) is hemispherical.

7. According to claim 5, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: The second elastic block comprises a second spring (302) and a second block (301); One end of the second spring (302) is connected to the bottom of a second mounting groove (305) arranged on the groove wall of the second connecting groove (304), and the other end is connected to the second clamping block (301); When the second clamping block (301) is squeezed by the hook-shaped end of the second connecting rod (303), the second clamping block (301) retracts into the second installation groove (305).

8. According to claim 4, a space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module is characterized in that: There are at least two first connecting mechanisms and at least two second connecting mechanisms.

9. A space environment-adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability quick-connection module according to claim 8, characterized in that: When there are two first connecting mechanisms and two second connecting mechanisms, the two first connecting mechanisms are arranged between the two second connecting mechanisms.

10. The space environment adaptable low-cost perovskite crystalline silicon composite tandem solar cell high-reliability fast connection module according to claim 1, characterized in that: A thin film is arranged on the surface of the solar cell (101); the thin film is formed by stacking a conductive layer, a high refractive index layer and a low refractive index layer, and the conductive layer faces the solar cell (101).

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