Perovskite solar cell glove box

Abstract

The utility model discloses a perovskite solar cell glove box, and relates to the technical field of glove boxes. The glove box comprises a glove box body, a fan assembly and a cold trap, wherein the fan assembly and the cold trap are arranged in the glove box body; the cold trap comprises condensation fins which are arranged in parallel, and the area occupied by the condensation fins in the wind direction is smaller than the area of gaps of the condensation fins; the fan assembly is arranged above the condensation fins and faces the front faces of the condensation fins. When the perovskite solar cell glove box is in a working state, the fan assembly and the cold trap are matched to control a preset gaseous refrigerant to flow through the cold trap, the temperature of the perovskite solar cell glove box is controlled by reducing the temperature of the cold trap, and the condensation fins are in full contact with the preset gaseous refrigerant, so that the condensation effect of the perovskite solar cell glove box is improved. And the temperature is rapidly reduced to a temperature range required by a perovskite spin-coating process, so that the temperature of the perovskite solar cell glove box is reduced, and the cell efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of glove boxes, in particular to a perovskite solar cell glove box. Background Art

[0002] In recent years, perovskite solar cells have received great attention due to their excellent photoelectric performance, high photoelectric conversion efficiency and low cost, and their development speed has been rapidly improved. The method for preparing perovskite solar cells is mainly to spin-coat a pre-proportioned perovskite solution, the solvent of which is usually dimethyl sulfoxide (DMSO) and N,N-dimethylformamide (DMF).

[0003] The perovskite spin coating process has strict requirements on the ambient temperature, oxygen content and humidity, and needs to be operated in a glove box. The most suitable temperature in the glove box is 18-25 degrees Celsius. When it exceeds 25 degrees Celsius, the perovskite solution evaporates quickly and many seed crystals are formed, which leads to poor spin coating quality and further affects the battery efficiency.

[0004] In a traditional glove box, the cooling system is placed outside the glove box operating box, and cooling is achieved through circulation between the glove box and the cooling box. There are exhaust vents and air intake vents in the operating box, and their diameters limit the cooling speed. It usually takes 30 minutes to cool down from 30 degrees to 20 degrees. In addition, the heat emitted by the annealing furnace in a traditional glove box will increase the temperature of the entire glove box by 31°C.

[0005] Therefore, the existing glove box cannot ensure that the temperature inside the glove box during operation is suitable for the temperature required for the perovskite spin coating process, resulting in rapid evaporation of the perovskite solution and the formation of a large number of seed crystals, which in turn leads to poor spin coating quality and further affects battery efficiency. Utility Model Content

[0006] The utility model aims to provide a perovskite solar cell glove box to solve the problem that the existing glove box cannot ensure that the temperature in the glove box is suitable for the temperature required by the perovskite spin coating process during operation, resulting in rapid volatilization of the perovskite solution and a large number of seed crystals formed, which in turn leads to poor spin coating quality and further affects the battery efficiency.

[0007] In a first aspect, the utility model provides a perovskite solar cell glove box, the glove box comprising:

[0008] A glove box body, and a fan assembly and a cold trap arranged in the glove box body;

[0009] The cold trap comprises condensing fins arranged in parallel, wherein the area occupied by the condensing fins along the wind direction is smaller than the area of ​​the gaps between the condensing fins;

[0010] The fan assembly is arranged above the condensing fins, and the fan assembly faces the front of the condensing fins;

[0011] When the perovskite solar cell glove box is in working state, the fan assembly and the cold trap cooperate to control a preset gaseous refrigerant to flow through the cold trap, and the temperature of the perovskite solar cell glove box is controlled by lowering the temperature of the cold trap.

[0012] When the above technical solution is adopted, the glove box provided by the embodiment of the utility model includes: a glove box body, and a fan assembly and a cold trap arranged in the glove box body; the cold trap includes condensing fins arranged in parallel, the fan assembly is arranged above the condensing fins, the fan assembly faces the front of the condensing fins, and the area occupied by the condensing fins along the wind direction is smaller than the area of ​​the gaps in the condensing fins, so that more airflow can pass through the gaps between the multiple condensing sheets of the condensing fins, so that the airflow is fully in contact with the condensing fins. When the perovskite solar cell glove box is in working condition, the fan assembly and the The cold trap cooperates to control a preset gaseous refrigerant to flow through the cold trap, and the temperature of the perovskite solar cell glove box is controlled by lowering the temperature of the cold trap. Specifically, the condensing fins are fully in contact with the preset gaseous refrigerant to quickly cool down to the temperature range required for the perovskite spin coating process, thereby completing the cooling of the perovskite solar cell glove box. The cooling distribution is more uniform, meeting the optimal ambient temperature range for perovskite battery processing, and further avoiding the situation where the perovskite solution evaporates quickly due to excessive temperature, resulting in a large number of seed crystals, thereby optimizing the spin coating quality and further improving the battery efficiency.

[0013] In some embodiments, an inner wall fixing bracket is provided on the top of the glove box body; the inner wall fixing bracket is used to fix the cold trap and the fan assembly.

[0014] In some embodiments, the fan assembly includes at least one fan.

[0015] In some embodiments, when the fan assembly includes a plurality of fans, the plurality of fans are located above the cold trap, and an air outlet is provided on a side of the fan facing the cold trap, and an air inlet is provided on a side facing away from the cold trap.

[0016] In some embodiments, the cold trap further includes at least one condensation pipeline, and the condensation pipeline includes a condensate inlet pipeline, a condensate outlet pipeline, and a condensation coil inserted in the condensation fins, which are interconnected.

[0017] In some embodiments, the condensing fins include a plurality of condensing sheets. The larger the surface area of ​​the condensing sheets, the more preset gaseous refrigerant will flow into the cold trap. That is, the larger the surface area of ​​the condensing sheets, the higher the cooling efficiency.

[0018] In some embodiments, the axis of the condensing coil is not parallel to, does not contain, and only intersects with the plane where the surface of the condensing sheet is located.

[0019] In some embodiments, the shape of the condensation sheet includes a cuboid or a prism. The embodiment of the utility model does not limit its specific shape, and specific restrictions can be made according to the actual application scenario, but its shape must meet the following three points: the first point is that the condensation coil can cool down all the condensation sheets, and the temperature is as uniform as possible; the second point is that the unfolded surface area of ​​the condensation sheet is as large as possible; the third point is that the overall volume of the condensation sheet should be as large as possible without affecting the glove box experiment. Among them, since the water and oxygen content in the glove box is strictly controlled, the cold trap can only play a cooling role without condensation water.

[0020] In some embodiments, the condensate inflow pipe and the condensate outflow pipe are respectively connected to a pump body outside the glove box body.

[0021] In some embodiments, the glove box body further includes at least one thermocouple and a flow valve and a temperature display unit, wherein the thermocouple is disposed in the glove box body, and the flow valve and the temperature display unit are disposed on the condensate inflow pipe. The flow valve and the temperature display unit can display the temperature value measured by the thermocouple in the glove box, and the purpose is to detect the temperature. The temperature detection data can be fed back to the flow valve in the flow valve and the display unit in real time. When the temperature in the glove box body exceeds the preset temperature maximum threshold, the flow capacity of the flow valve can be increased, the condensate flow rate can be increased, and the temperature can be accelerated. When the temperature in the glove box is lower than the preset temperature minimum threshold, the flow capacity of the flow valve can be reduced, so that more condensate can be slowed down or even stay in the condensation coil, and the temperature can be slowed down. The flow valve can be used to control the amount of coolant flowing out of the pipe, and further control the residence time and flow rate of the coolant in the cold trap, thereby controlling the cooling temperature to achieve dynamic temperature regulation.

[0022] In some embodiments, the cold trap further comprises a condensation pipeline and a slide rail unit;

[0023] The condensing fins and the condensing pipeline are connected in a relatively sliding manner; the slide rail unit is arranged on the outer wall of the condensing pipeline, the slide rail in the slide rail unit is parallel to the corresponding condensing tube in the condensing pipeline, and the condensing fins are provided with corresponding concave slide grooves.

[0024] In some embodiments, the slide rail unit includes at least two slide rails;

[0025] The condensation pipeline comprises at least one condensation pipeline, each of which comprises a condensate inflow pipeline, a condensate outflow pipeline and a condensation coil inserted in the condensation fins, which are interconnected;

[0026] The slide rails are respectively arranged on the outer walls of the condensing tubes closest to the outside.

[0027] In some embodiments, the preset gaseous refrigerant includes nitrogen or helium.

[0028] In some embodiments, the cold trap further comprises a convex baffle disposed on each condensation sheet in the condensation fins, and a condensation pipe reserved hole disposed on a fin surface corresponding to each condensation sheet.

[0029] In some embodiments, the cold trap also includes a condensing fin uniform distribution plate movably connected to the condensing fin; the condensing fin uniform distribution plate includes a distribution plate body, at least one fixing hole arranged on the side of the distribution plate body, and a plurality of concave baffles arranged on the lower surface of the distribution plate body.

[0030] The movable condensing fins solve the problem that the space occupied by the cold trap cannot be adjusted. When the size of the space occupied by the cold trap needs to be adjusted, you only need to slide the condensing fins. When the condensing fins need to be reset, first fix the condensing fin uniform distribution plate above the cold trap and below the fan through the fixing holes. Move the condensing fins to slide so that the baffles on each condensing fin lean against the baffles on the corresponding condensing fin uniform distribution plate in turn to reset the condensing fins. The condensing fin uniform distribution plate can be made into a long strip and fixed under the fan without disassembly. If the area of ​​the condensing fin uniform distribution plate is too large and blocks the fan, you need to remove the uniform distribution plate after resetting the condensing fins. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0032] Figure 1 A schematic structural diagram of a perovskite solar cell glove box provided by the utility model is shown;

[0033] Figure 2 A partial structural schematic diagram of a perovskite solar cell glove box provided by an embodiment of the utility model is shown;

[0034] Figure 3 A partial structural schematic diagram of another perovskite solar cell glove box provided by an embodiment of the utility model is shown;

[0035] Figure 4A schematic diagram of the partial structure of the back side of a perovskite solar cell glove box provided by an embodiment of the utility model is shown;

[0036] Figure 5 A schematic structural diagram of a movable condensing fin provided in an embodiment of the utility model is shown;

[0037] Figure 6 A structural schematic diagram of a condensing fin uniform distribution plate provided in an embodiment of the utility model is shown.

[0038] Reference numerals:

[0039] 10-glove box body, 20-fan assembly, 30-cold trap, 101-inner wall fixing bracket, 201-fan, 301-condensing fin, 302-condensing pipeline, 3021-condensing liquid inflow pipeline, 3022-condensing liquid outflow pipeline, 3023-condensing coil, 3011-condensing sheet, 102-thermocouple, 103-flow valve and temperature display unit, 304-slide unit, A-slide, K-convex baffle, L-condensing tube reserved hole, 305-condensing fin uniform distribution plate, 3051-distribution plate body, 3052-fixing hole, 3053-concave baffle. DETAILED DESCRIPTION

[0040] In order to clearly describe the technical solutions of the embodiments of the present utility model, in the embodiments of the present utility model, words such as "first" and "second" are used to distinguish the same or similar items with basically the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference.

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0042] It should be noted that in the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0043] In the present utility model, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, the combination of a and b, the combination of a and c, the combination of b and c, or the combination of a, b and c, where a, b, c can be single or plural.

[0044] Figure 1 The structure diagram of a perovskite solar cell glove box provided by the utility model is shown as follows: Figure 1 As shown, the glove box comprises:

[0045] A glove box body 10, and a fan assembly 20 and a cold trap 30 disposed in the glove box body 10;

[0046] The cold trap 30 includes condensing fins 301 arranged in parallel, and the area occupied by the condensing fins 301 along the wind direction is smaller than the area of ​​the gaps between the condensing fins;

[0047] The fan assembly 20 is disposed above the condensing fins 301, and the fan assembly 20 faces the front of the condensing fins 301;

[0048] When the perovskite solar cell glove box is in operation, the fan assembly 20 and the cold trap 30 cooperate to control a preset gaseous refrigerant to flow through the cold trap 30 , and the temperature of the perovskite solar cell glove box is controlled by lowering the temperature of the cold trap 30 .

[0049] In summary, the glove box provided by the embodiment of the utility model includes: a glove box body, and a fan assembly and a cold trap arranged in the glove box body; the cold trap includes condensing fins arranged in parallel, and the area occupied by the condensing fins along the wind direction is smaller than the area of ​​the gaps between the condensing fins, and the fan assembly is arranged above the condensing fins, and the fan assembly faces the front of the condensing fins, so that more airflow can pass through the gaps between the multiple condensing thin sheets of the condensing fins, so that the airflow is fully in contact with the condensing fins. When the perovskite solar cell glove box is in working condition, the fan assembly and the The cold trap cooperates to control a preset gaseous refrigerant to flow through the cold trap, and the temperature of the perovskite solar cell glove box is controlled by lowering the temperature of the cold trap. The condensing fins are fully in contact with the preset gaseous refrigerant to quickly cool the glove box to the temperature range required for the perovskite spin coating process, thereby completing the cooling of the perovskite solar cell glove box. The cooling distribution is more uniform, meeting the optimal ambient temperature range for perovskite battery processing, and further avoiding the situation where the perovskite solution evaporates quickly due to excessive temperature, resulting in a large number of seed crystals, thereby optimizing the spin coating quality and further improving the battery efficiency.

[0050] Optional, Figure 2 A partial structural schematic diagram of a perovskite solar cell glove box provided by an embodiment of the utility model is shown. Figure 2 As shown, an inner wall fixing bracket 101 is provided on the top of the glove box body 10; the inner wall fixing bracket 101 is used to fix the cold trap 30 and the fan assembly.

[0051] In the utility model, the glove box body has built-in circulating dehumidification and deoxygenation, the water oxygen content is lower than 0.1PPM, and nitrogen filling in a fully closed environment can be achieved.

[0052] Optional, see Figure 2 , the fan assembly includes at least one fan 201.

[0053] Optionally, when the fan assembly includes multiple fans 201, the multiple fans 201 are all located above the cold trap 30, and the fans 201 exhaust air facing the side of the cold trap 30 and inhale air facing away from the side of the cold trap 30. The condensation fins are fully in contact with the preset gaseous refrigerant, and the temperature is quickly reduced to the temperature range required for the perovskite spin coating process, so as to complete the cooling of the perovskite solar cell glove box, and the cooling distribution is more uniform, meeting the optimal ambient temperature range for perovskite battery processing, and further avoiding the situation where the perovskite solution evaporates quickly due to excessive temperature and causes a large number of seed crystals, so that the spin coating quality is optimized, and the battery efficiency is further improved.

[0054] Among them, the preset gaseous refrigerant may include nitrogen or helium, wherein nitrogen can be separated from the air and has a low cost, and helium can be obtained from natural gas deposits and has a high content and low cost. The embodiment of the present application does not make specific limitations on this, and specific selections and settings can be made according to actual application scenarios.

[0055] Optional, see Figure 2 The cold trap 30 also includes at least one condensation pipeline 302 , and the condensation pipeline 302 includes a condensate inlet pipeline 3021 , a condensate outlet pipeline 3022 , and a condensation coil 3023 inserted in the condensation fins 301 .

[0056] Among them, the embodiment of the utility model does not limit the specific number of condensation pipelines, and specific settings can be made according to actual application scenarios.

[0057] Optional, see Figure 2 The condensing fins include a plurality of condensing sheets 3011, wherein the condensing sheets can be made of aluminum alloy or steel with high thermal conductivity. The embodiment of the utility model does not make any specific limitation on this and can be specifically configured according to the actual application scenario.

[0058] Furthermore, the volume of the cold trap is determined by the volume occupied by the condensation sheet in the glove box, and the volume must be as large as possible, the surface area of ​​the condensation sheet when unfolded is as large as possible, and it must not affect the normal experiment in the glove box. The embodiment of the utility model does not set a limit on the number and volume of specific condensation sheets, and can be set according to specific application scenarios. It should be noted that the larger the surface area of ​​the condensation sheet when unfolded, the more preset gaseous refrigerant will flow into the cold trap, that is, the larger the surface area of ​​the condensation sheet, the higher the cooling efficiency.

[0059] Optional, see Figure 2 , the axis of the condensing coil 3023 is not parallel to, does not contain, and only intersects with the plane where the surface of the condensing sheet 3011 is located. Figure 2 As shown, the axis of the condensing coil 3023 is perpendicular to the plane where the surface of the condensing sheet 3011 is located.

[0060] Optionally, the shape of the condensation sheet includes a cuboid or a prism. The embodiment of the utility model does not limit its specific shape, and can be specifically limited according to the actual application scenario, but its shape must meet the following three points: the first point is that the condensation coil can cool down all the condensation sheets, and the temperature is as uniform as possible; the second point is that the expanded surface area of ​​the condensation sheet is as large as possible; the third point is that the overall volume of the condensation sheet should be as large as possible without affecting the glove box experiment. Among them, since the water and oxygen content in the glove box is strictly controlled, the cold trap can only play a cooling role without condensing water.

[0061] Optional, Figure 3FIG. 1 shows a partial structural diagram of another perovskite solar cell glove box provided by an embodiment of the utility model. Figure 3 As shown, the condensate inflow pipe 3021 and the condensate outflow pipe 3022 are respectively connected to the pump body outside the glove box body 10.

[0062] Optional, see Figure 3 The glove box body 10 further includes at least one thermocouple 102 and a flow valve and temperature display unit 103 . The thermocouple 102 is disposed in the glove box body 10 , and the flow valve and temperature display unit 103 are disposed on the condensate inflow pipe 3021 .

[0063] The flow valve and the temperature display unit can display the temperature value measured by the thermocouples in the glove box. The embodiment of the utility model does not specifically limit the number and position of the thermocouples in the glove box body. Figure 3 As shown, the thermocouple 102 is arranged on the condensate inflow pipe. Multiple thermocouples can also be evenly distributed in the glove box body, and their purpose is to detect the temperature. The temperature detection data can be fed back to the flow valve in the flow valve and the display unit in real time. When the temperature in the glove box body exceeds the preset temperature maximum threshold, the flow capacity of the flow valve can be increased, the condensate flow rate can be increased, and the temperature can be accelerated. When the temperature in the glove box is lower than the preset temperature minimum threshold, the flow capacity of the flow valve can be reduced, so that more condensate can be slowed or even stay in the condensation coil, and the temperature can be slowed down. The amount of coolant flowing out of the pipe can be controlled by the flow valve, and the residence time and flow rate of the coolant in the cold trap can be further controlled, so as to control the cooling temperature and realize dynamic temperature regulation.

[0064] Optionally, the embodiments of the utility model do not specifically limit the specific values ​​of the preset temperature maximum threshold and the preset temperature minimum threshold. For example, the preset temperature maximum threshold may be 24 degrees Celsius, and the preset temperature minimum threshold may be 18 degrees Celsius.

[0065] Figure 4 FIG. 1 shows a schematic diagram of the partial structure of the back side of a perovskite solar cell glove box provided by an embodiment of the utility model. Figure 4 As shown, the flow valve and the temperature display unit 103 are arranged on the condensate outflow pipe 3022 .

[0066] Figure 5 The structure diagram of a movable condensing fin provided by an embodiment of the utility model is shown as follows: Figure 5 As shown, the cold trap further includes a condensation pipeline 302; the condensation fins 301 and the condensation pipeline 302 are connected in a relatively sliding manner.

[0067] See also Figure 5The cold trap further includes a slide rail unit 304; the slide rail unit 304 is arranged on the outer wall of the condensation pipeline 302, the slide rail A in the slide rail unit 304 is parallel to the corresponding condensation tube in the condensation pipeline 302, and the condensation fin 301 is provided with a corresponding concave groove.

[0068] See also Figure 5 , the slide rail unit 304 includes at least two slide rails A;

[0069] The condensation pipeline includes a condensate inflow pipeline, a condensate outflow pipeline and a condensation coil inserted in the condensation fins, which are interconnected;

[0070] The slide rails A are respectively arranged on the outer walls of the condensation pipes 302 closest to the outside.

[0071] The condensation pipe is coated with a layer of thermal grease, which has strong thermal conductivity and does not solidify. It does not change in quality for a long time in an oxygen-free and water-free environment below 25 degrees Celsius in a glove box. The thermal grease serves as a heat transfer medium between the condensation fins and the condensation pipe, which can greatly improve the heat transfer efficiency.

[0072] Optional, see Figure 5 The cold trap further includes a convex baffle K arranged on each condensation sheet in the condensation fin 301, and a condensation pipe reserved hole L arranged on the fin surface corresponding to each condensation sheet.

[0073] Figure 6 The structure diagram of a condensing fin uniform distribution plate provided by an embodiment of the utility model is shown as follows: Figure 6 As shown, the cold trap also includes a condensing fin uniform distribution plate 305 movably connected to the condensing fin; the condensing fin uniform distribution plate 305 includes a distribution plate body 3051, and at least one fixing hole 3052 arranged on the side of the distribution plate body 3051, and a plurality of concave baffles 3053 arranged on the lower surface of the distribution plate body 3051.

[0074] Optionally, the positions and quantities of the plurality of convex blocking pieces and the plurality of concave blocking pieces are matched and arranged in a one-to-one correspondence.

[0075] The movable condensing fins solve the problem that the space occupied by the cold trap cannot be adjusted. When the space occupied by the cold trap needs to be adjusted, it is only necessary to slide the condensing fins. When the condensing fins need to be reset, first move the condensing fins as shown in the figure. Figure 6The condensing fin uniform distribution plate shown is fixed above the cold trap and below the fan through the fixing holes. Move the condensing fins to slide so that the baffles on each condensing fin are pressed against the baffles on the corresponding condensing fin uniform distribution plate in turn to reset the condensing fins. The condensing fin uniform distribution plate can be made into a long strip and fixed under the fan without removal. If the area of ​​the condensing fin uniform distribution plate is too large to block the fan, it is necessary to remove the uniform distribution plate after resetting the condensing fins.

[0076] It should be noted that experiments have shown that when the temperature of the perovskite solar cell glove box exceeds 25 degrees Celsius, the perovskite solution evaporates faster, more seed crystals are formed, and the perovskite grain size is smaller (30-800nm). After controlling the temperature between 18°C ​​and 25°C, the number of seed crystals formed is reduced and the grain size (800-1.5um) is increased; the battery efficiency stability and controllability are significantly enhanced.

[0077] In summary, the glove box provided by the embodiment of the utility model includes: a glove box body, and a fan assembly and a cold trap arranged in the glove box body; the cold trap includes condensing fins arranged in parallel, and the area occupied by the condensing fins along the wind direction is smaller than the area of ​​the gaps between the condensing fins, and the fan assembly is arranged above the condensing fins, and the fan assembly faces the front of the condensing fins, so that more airflow can pass through the gaps between the multiple condensing thin sheets of the condensing fins, so that the airflow is fully in contact with the condensing fins. When the perovskite solar cell glove box is in working condition, the fan assembly and the The cold trap cooperates to control a preset gaseous refrigerant to flow through the cold trap, and the temperature of the perovskite solar cell glove box is controlled by lowering the temperature of the cold trap. The condensing fins are fully in contact with the preset gaseous refrigerant to quickly cool the glove box to the temperature range required for the perovskite spin coating process, thereby completing the cooling of the perovskite solar cell glove box. The cooling distribution is more uniform, meeting the optimal ambient temperature range for perovskite battery processing, and further avoiding the situation where the perovskite solution evaporates quickly due to excessive temperature, resulting in a large number of seed crystals, thereby optimizing the spin coating quality and further improving the battery efficiency.

[0078] Although the present invention is described herein in conjunction with various embodiments, in the process of implementing the claimed invention, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "a" does not exclude multiple components. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0079] Although the utility model has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the utility model. Accordingly, this specification and the drawings are merely exemplary illustrations of the utility model as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the utility model. Obviously, those skilled in the art may make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model fall within the scope of the claims of the utility model and their equivalents, the utility model is also intended to include these modifications and variations.

Claims

1. A perovskite solar cell glove box, characterized in that: include: A glove box body, and a fan assembly and a cold trap arranged in the glove box body; The cold trap comprises condensing fins arranged in parallel, wherein the area occupied by the condensing fins along the wind direction is smaller than the area of ​​the gaps between the condensing fins; The fan assembly is arranged above the condensing fins, and the fan assembly faces the front of the condensing fins; When the perovskite solar cell glove box is in working state, the fan assembly and the cold trap cooperate to control a preset gaseous refrigerant to flow through the cold trap, and the temperature of the perovskite solar cell glove box is controlled by lowering the temperature of the cold trap.

2. The perovskite solar cell glove box according to claim 1, characterized in that: An inner wall fixing bracket is arranged on the top of the glove box body; the inner wall fixing bracket is used to fix the cold trap and the fan assembly.

3. The perovskite solar cell glove box according to claim 1, characterized in that: The fan assembly includes at least one fan.

4. The perovskite solar cell glove box according to claim 3, characterized in that: In the case where the fan assembly includes a plurality of fans, the plurality of fans are all located above the cold trap, and an air outlet is provided on a side of the fan facing the cold trap, and an air inlet is provided on a side of the fan facing away from the cold trap.

5. The perovskite solar cell glove box according to claim 1, characterized in that: The cold trap further comprises at least one condensation pipeline, and the condensation pipeline comprises a condensate inflow pipeline, a condensate outflow pipeline and a condensation coil inserted in the condensation fins, which are interconnected.

6. The perovskite solar cell glove box according to claim 5, characterized in that: The condensing fins include a plurality of condensing fins.

7. The perovskite solar cell glove box according to claim 6, characterized in that: The axis of the condensing coil is not parallel to, does not contain, and only intersects with the plane where the surface of the condensing sheet is located.

8. The perovskite solar cell glove box according to claim 7, characterized in that: The shape of the condensation sheet includes a rectangular parallelepiped or a prism.

9. The perovskite solar cell glove box according to claim 5, characterized in that: The condensate inflow pipe and the condensate outflow pipe are respectively connected to a pump body outside the glove box body.

10. The perovskite solar cell glove box according to claim 9, characterized in that: The glove box body further comprises at least one thermocouple, a flow valve and a temperature display unit. The thermocouple is arranged in the glove box body, and the flow valve and the temperature display unit are arranged on the condensate inflow pipe.

11. The perovskite solar cell glove box according to claim 1, characterized in that: The cold trap also includes a condensation pipeline and a slide rail unit; The condensing fins and the condensing pipeline are connected in a relatively sliding manner; the slide rail unit is arranged on the outer wall of the condensing pipeline, the slide rail in the slide rail unit is parallel to the corresponding condensing tube in the condensing pipeline, and the condensing fins are provided with corresponding concave slide grooves.

12. The perovskite solar cell glove box according to claim 11, characterized in that: The slide rail unit comprises at least two slide rails; The condensation pipeline comprises at least one condensation pipeline, each of which comprises a condensate inflow pipeline, a condensate outflow pipeline and a condensation coil inserted in the condensation fins, which are interconnected; The slide rails are respectively arranged on the outer walls of the condensing tubes closest to the outside.

13. The perovskite solar cell glove box according to claim 1, characterized in that: The preset gaseous refrigerant includes nitrogen or helium.

14. The perovskite solar cell glove box according to claim 11, characterized in that: The cold trap further comprises a convex baffle plate arranged on each condensation sheet in the condensation fins, and a condensation pipe reserved hole arranged on the fin surface corresponding to each condensation sheet.

15. The perovskite solar cell glove box according to claim 14, characterized in that: The cold trap also includes a condensing fin uniform distribution plate movably connected to the condensing fin; the condensing fin uniform distribution plate includes a distribution plate body, at least one fixing hole arranged on the side of the distribution plate body, and a plurality of concave baffles arranged on the lower surface of the distribution plate body.

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