CN218734196U - Cooling device for photovoltaic module - Google Patents
Cooling device for photovoltaic module Download PDFInfo
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- CN218734196U CN218734196U CN202223144323.7U CN202223144323U CN218734196U CN 218734196 U CN218734196 U CN 218734196U CN 202223144323 U CN202223144323 U CN 202223144323U CN 218734196 U CN218734196 U CN 218734196U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The application provides a cooling device of a photovoltaic module, which is characterized by comprising a refrigerating unit, a driving unit, a thermal sensing unit and a control unit; the control unit connects refrigeration unit, drive unit and hotness sensing unit for according to hotness sensing unit's scanning data control the drive unit drive refrigeration unit extremely the high temperature point is cooled down, and the heat sink volume is less, therefore comparatively the energy can be saved, and efficiency is higher, simultaneously because directly cooling down the high temperature point, the time of cooling down is also shorter, thereby has avoided the harm of photovoltaic local hot spot to photovoltaic module.
Description
Technical Field
The application belongs to the technical field of safety protection of photovoltaic modules, and particularly relates to a cooling device of a photovoltaic module.
Background
In the operation process of the photovoltaic module, due to the problems of the environment where the photovoltaic module is located or the defects of the photovoltaic module, the temperature of a partial area is higher than that of other areas, when the temperature of the partial area is too high (for example, more than 80 ℃), the power generation efficiency of the whole photovoltaic module is greatly reduced, the phenomenon is called as a photovoltaic local hot spot phenomenon, according to tests, if the photovoltaic local hot spot phenomenon is not eliminated, the power generation efficiency of the photovoltaic module is reduced by more than 70%, and even the whole photovoltaic module is damaged or has a fire hazard seriously. The method for eliminating the phenomenon in the prior art is to cool the whole photovoltaic module, but the method is low in efficiency, energy is consumed, and the cooling speed is low.
SUMMERY OF THE UTILITY MODEL
Based on the existence of above-mentioned problem, this application provides a photovoltaic module's heat sink to solve the technical problem that the background art exists, specific technical scheme is:
a cooling device of a photovoltaic module comprises a refrigeration unit, a driving unit, a thermal sensing unit and a control unit;
the driving unit comprises an X-direction moving part and a Y-direction moving part;
one end of the refrigeration unit is respectively connected with the X-direction moving part and the Y-direction moving part, the other end of the refrigeration unit is movably attached to the back plate of the photovoltaic module, the area of the refrigeration unit is smaller than that of the back plate of the photovoltaic module, and the X-direction moving part and the Y-direction moving part respectively drive the refrigeration unit to move in the X direction and the Y direction;
the thermal sensing unit is arranged behind the photovoltaic module backboard and used for scanning the backboard and acquiring a high-temperature point on the backboard;
the control unit is connected with the refrigerating unit, the driving unit and the thermal sensing unit and used for controlling the driving unit to drive the refrigerating unit to the high-temperature point according to the scanning data of the thermal sensing unit.
In a further aspect of the present invention,
the refrigerating unit comprises refrigerating fins, a refrigerating chip and radiating fins;
one surface of the refrigeration fin is arranged at the cold end of the refrigeration chip, and the other surface of the refrigeration fin is movably attached to the back plate of the photovoltaic module;
one surface of the radiating fin is arranged at the hot end of the refrigerating chip.
Further, in the above-mentioned case,
the refrigerating unit is respectively connected with the X-direction moving component and the Y-direction moving component through fixing bolts.
Further, in the above-mentioned case,
the X-direction moving component comprises an X-direction driving motor, an X-direction screw rod, an X-direction sliding plate and an X-direction sliding groove;
an X-direction through groove parallel to the X-direction sliding plate is formed in the X-direction sliding plate;
one end of the X-direction sliding plate is in threaded connection with the X-direction screw, the other end of the X-direction sliding plate is in sliding connection with the X-direction sliding groove, and the output end of the X-direction driving motor is fixedly connected with the X-direction screw;
the Y-direction moving part comprises a Y-direction driving motor, a Y-direction screw rod, a Y-direction sliding plate and a Y-direction sliding groove;
a Y-direction through groove parallel to the Y-direction sliding plate is formed in the Y-direction sliding plate;
one end of the Y-direction sliding plate is in threaded connection with the Y-direction screw, the other end of the Y-direction sliding plate is in sliding connection with the Y-direction sliding groove, and the output end of the Y-direction driving motor is fixedly connected with the Y-direction screw;
the fixing bolt penetrates through the intersection of the X-direction through groove and the Y-direction through groove.
Further, in the above-mentioned case,
the temperature threshold of the high temperature point on the backing plate is greater than 80 ℃.
Further, in the above-mentioned case,
and a heat radiation fan is arranged on the other surface of the heat radiation fin.
Further, in the above-mentioned case,
the thermal sensing unit is an infrared thermal sensing device.
Further, in the above-mentioned case,
the control unit comprises a PLC controller and a power supply device;
and the PLC controller respectively controls the output end of the power supply device to be disconnected with the circuits of the refrigeration unit, the driving unit and the thermal sensing unit.
In a further aspect of the present invention,
the power supply device is a voltage-stabilized power supply, and the input end of the power supply device is connected with the photovoltaic module or the storage battery.
This application is through behind the hot sensing unit scanning photovoltaic module backplate, acquires behind the high temperature point on the backplate, remove refrigeration unit and cool down to this high temperature point to it, the heat sink volume is less, consequently comparatively energy saving, and efficiency is higher, simultaneously owing directly cooling down to the high temperature point, the time of cooling is also shorter to photovoltaic local hot spot has been avoided to photovoltaic module's harm.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that other drawings can be derived from these drawings by a person skilled in the art without inventive effort.
For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings. Wherein like reference numerals refer to like parts in the following description.
Fig. 1 is a schematic view of an overall structure of a cooling device of a photovoltaic module according to the present application;
FIG. 2 is a schematic view of a drive unit according to the present application;
fig. 3 is a schematic view of the structure of a portion of the refrigeration unit of the present application.
1, a photovoltaic module; 2. a frame; 3. a refrigeration unit; 31. a refrigeration chip; 32. refrigerating fins; 33. heat dissipation fins; 34. a heat radiation fan; 35. a cable; 4. an X-direction driving motor; 5. a Y-direction driving motor; 6. a Y-direction sliding plate; 7. an X-direction sliding plate; 8. a Y-direction through groove; 9. an X-direction through groove; 10. fixing the bolt; 11. an X-direction screw; 12. a Y-direction screw; 13. an X-direction chute; 14. a Y-direction chute; 15. a thermal sensing unit; 16. a control unit.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a cooling device of a photovoltaic module, which aims to solve the technical problems that the mechanical efficiency of the cooling device of the existing photovoltaic module is low, the energy is lost, and the cooling speed is slow.
Referring to fig. 1, the embodiment of the present application provides a cooling device for a photovoltaic module, which includes a refrigeration unit 3, a driving unit, a thermal sensing unit 15, and a control unit 16.
As shown in fig. 2, the driving unit is disposed on the frame 2 of the photovoltaic module 1, and includes an X-direction moving part and a Y-direction moving part; the X-direction moving component comprises an X-direction driving motor 4, an X-direction screw rod 11, an X-direction sliding plate 7 and an X-direction sliding groove 13; an X-direction through groove 9 parallel to the X-direction sliding plate 7 is arranged in the X-direction sliding plate 7; one end of the X-direction sliding plate 7 is in threaded connection with the X-direction screw rod 11, the other end of the X-direction sliding plate is in sliding connection with the X-direction sliding groove 13, and the output end of the X-direction driving motor 4 is fixedly connected with the X-direction screw rod 11; a Y-direction through groove 8 parallel to the Y-direction sliding plate 6 is arranged in the Y-direction sliding plate 6; one end of the Y-direction sliding plate 6 is in threaded connection with the Y-direction screw 12, the other end of the Y-direction sliding plate is in sliding connection with the Y-direction sliding groove 6, and the output end of the Y-direction driving motor 5 is fixedly connected with the Y-direction screw 12.
One end of the refrigerating unit 3 is connected with the X-direction moving part and the Y-direction moving part respectively, the other end of the refrigerating unit is movably attached to the back plate of the photovoltaic assembly 1, the area of the refrigerating unit 3 is smaller than that of the back plate of the photovoltaic assembly 1, and the X-direction moving part and the Y-direction moving part drive the refrigerating unit 3 to move in the X direction and the Y direction respectively.
The thermal sensing unit 15 is an infrared thermal sensing device, is arranged behind the backboard of the photovoltaic module 1, and is used for scanning the backboard and acquiring high-temperature points on the backboard; the control unit 16 is connected with the refrigeration unit 3, the driving unit and the thermal sensing unit 15, and is used for controlling the driving unit to drive the refrigeration unit 3 to the high temperature point according to the scanning data of the thermal sensing unit 15. The control unit 16 includes a PLC controller and a power supply device; the PLC controller respectively controls the output end of the power supply device to be disconnected with the circuits of the refrigeration unit 3, the driving unit and the thermal sensing unit 15. The power supply device is a stabilized voltage power supply, and the input end of the power supply device is connected with the photovoltaic module 1 or the storage battery. The temperature threshold value of the high temperature point on the back plate is more than 80 ℃, and when the high temperature point on the back plate is more than 80 ℃, the control unit starts the refrigeration function, cools to 50 ℃ and stops working.
Referring to fig. 3, the refrigeration unit 3 of the present embodiment includes refrigeration fins 32, a refrigeration chip 31, and heat dissipation fins 33. The refrigeration chip 31 is connected with the control unit through a cable 35, and the cable 35 has a certain weight, so that the refrigeration unit 3 is positioned, and the refrigeration unit 3 is prevented from overturning. One surface of the refrigeration fin 32 is arranged at the cold end of the refrigeration chip 31, and the other surface is movably attached to the back plate of the photovoltaic module 1; one surface of the heat dissipation fin 33 is disposed at the hot end of the refrigeration chip, and the other surface of the heat dissipation fin 33 is disposed with a heat dissipation fan 34. The refrigerating unit 3 is connected with the X-direction moving component and the Y-direction moving component through fixing bolts 10 respectively. In the present embodiment, the fixing bolt 10 passes through the intersection of the X-direction through slot 9 and the Y-direction through slot 8.
When the photovoltaic module temperature control device is used specifically, the thermal sensing unit 15 starts scanning under the work of the photovoltaic module, when the local temperature reaches 80 ℃, the XY coordinates of a high-temperature area of the module are fed back to the driving unit, the high-temperature point on the backboard is obtained, the refrigeration unit 3 is moved to the high-temperature point to cool the high-temperature point, the cooling device is small in size, energy is saved, efficiency is high, meanwhile, due to the fact that the high-temperature point is directly cooled, the cooling time is short, the control unit 16 starts a refrigeration function when a photovoltaic wafer reaches 80 ℃, the cooling is stopped when the temperature of the photovoltaic wafer reaches 50 ℃, efficiency can be recovered to be normal when the temperature of the photovoltaic wafer reaches control, and therefore damage of a photovoltaic local hot spot to the photovoltaic module is avoided. Through comparison tests, compared with the conventional technical scheme, the power reduction rate of the photovoltaic module is only 38%, while the power reduction rate of the photovoltaic module is 72% in the conventional technical scheme, so that the technical scheme of the embodiment is obviously superior.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (9)
1. The cooling device for the photovoltaic module is characterized by comprising a refrigerating unit, a driving unit, a thermal sensing unit and a control unit;
the driving unit comprises an X-direction moving part and a Y-direction moving part;
one end of the refrigeration unit is respectively connected with the X-direction moving part and the Y-direction moving part, the other end of the refrigeration unit is movably attached to the back plate of the photovoltaic module, the area of the refrigeration unit is smaller than that of the back plate of the photovoltaic module, and the X-direction moving part and the Y-direction moving part respectively drive the refrigeration unit to move in the X direction and the Y direction;
the thermal sensing unit is arranged behind the photovoltaic module backboard and used for scanning the backboard and acquiring a high-temperature point on the backboard;
the control unit is connected with the refrigerating unit, the driving unit and the thermal sensing unit and used for controlling the driving unit to drive the refrigerating unit to the high-temperature point according to the scanning data of the thermal sensing unit.
2. The cooling device for photovoltaic modules according to claim 1,
the refrigerating unit comprises refrigerating fins, a refrigerating chip and radiating fins;
one surface of the refrigeration fin is arranged at the cold end of the refrigeration chip, and the other surface of the refrigeration fin is movably attached to the back plate of the photovoltaic module;
one surface of the radiating fin is arranged at the hot end of the refrigerating chip.
3. The cooling device for photovoltaic modules according to claim 2,
the refrigerating unit is respectively connected with the X-direction moving component and the Y-direction moving component through fixing bolts.
4. The cooling device for photovoltaic modules according to claim 3,
the X-direction moving component comprises an X-direction driving motor, an X-direction screw rod, an X-direction sliding plate and an X-direction sliding groove;
an X-direction through groove parallel to the X-direction sliding plate is formed in the X-direction sliding plate;
one end of the X-direction sliding plate is in threaded connection with the X-direction screw, the other end of the X-direction sliding plate is in sliding connection with the X-direction sliding groove, and the output end of the X-direction driving motor is fixedly connected with the X-direction screw;
the Y-direction moving part comprises a Y-direction driving motor, a Y-direction screw rod, a Y-direction sliding plate and a Y-direction sliding groove;
a Y-direction through groove parallel to the Y-direction sliding plate is formed in the Y-direction sliding plate;
one end of the Y-direction sliding plate is in threaded connection with the Y-direction screw, the other end of the Y-direction sliding plate is in sliding connection with the Y-direction sliding groove, and the output end of the Y-direction driving motor is fixedly connected with the Y-direction screw;
the fixing bolt penetrates through the intersection of the X-direction through groove and the Y-direction through groove.
5. The cooling device for photovoltaic modules according to claim 1,
the temperature threshold of the high temperature point on the backing plate is greater than 80 ℃.
6. The cooling device for photovoltaic modules according to claim 2,
and a heat radiation fan is arranged on the other surface of the heat radiation fin.
7. The cooling device for photovoltaic modules according to claim 1,
the thermal sensing unit is an infrared thermal sensing device.
8. The cooling device for photovoltaic modules according to claim 1,
the control unit comprises a PLC controller and a power supply device;
and the PLC controller respectively controls the output end of the power supply device to be disconnected with the circuits of the refrigeration unit, the driving unit and the thermal sensing unit.
9. The cooling device for photovoltaic modules according to claim 8,
the power supply device is a voltage-stabilized power supply, and the input end of the power supply device is connected with the photovoltaic module or the storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223144323.7U CN218734196U (en) | 2022-11-25 | 2022-11-25 | Cooling device for photovoltaic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223144323.7U CN218734196U (en) | 2022-11-25 | 2022-11-25 | Cooling device for photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN218734196U true CN218734196U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223144323.7U Active CN218734196U (en) | 2022-11-25 | 2022-11-25 | Cooling device for photovoltaic module |
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| Country | Link |
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| CN (1) | CN218734196U (en) |
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- 2022-11-25 CN CN202223144323.7U patent/CN218734196U/en active Active
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