Temperature control device for testing solar module

Abstract

A temperature control device for solar module testing comprises a darkroom and a temperature control box, the darkroom is fixedly installed on the rear side of the temperature control box, a solar light source is installed on the rear side face of an inner cavity of the darkroom, the rear side face of the temperature control box is communicated with the darkroom through an opening, and a first roller shutter door is installed on the rear side face of the temperature control box. A second roller shutter door is installed on the front side face of the temperature control box. An installation frame is fixedly installed in the temperature control box, an assembly supporting frame is installed in the installation frame, a solar assembly is installed on the assembly supporting frame, a plurality of circulating fans are fixedly embedded in the upper surface of the installation frame, a perforated plate is fixedly embedded in the lower surface of the installation frame, and an annular air channel is defined between the outer side face of the installation frame and the inner wall of the temperature control box. And a heating wire, a refrigeration evaporator and a conduction fan are mounted in the annular air duct. According to the utility model, the defects in the prior art are overcome, the test temperature of the solar module can be accurately controlled, and the test accuracy can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar component testing, in particular to a temperature control device for solar component testing. Background Art

[0002] The power of solar panels is a key indicator of their quality. Typically, solar panel power is tested at 25°C using a solar simulator. However, 25°C cannot accurately assess actual outdoor power generation. To assess actual outdoor power generation, solar panel power testing must be performed at different temperatures.

[0003] Currently, one approach involves installing an environmental chamber near the power tester's component placement location. The chamber surrounds the components, with a glass wall between the chamber and the light source. This method can precisely control component temperature, but the single airflow path results in poor component temperature uniformity, a significant factor influencing test results. Furthermore, this structure affects key indicators such as simulator uniformity and spectral matching, thereby impacting test accuracy. Utility Model Content

[0004] In view of the deficiencies of the existing technology, the utility model provides a temperature control device for testing solar modules, which overcomes the deficiencies of the existing technology and has a reasonable design. It can not only accurately control the test temperature of the solar modules, but also effectively improve the test accuracy.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A temperature control device for testing solar panels, comprising a darkroom and a temperature control box, wherein the darkroom is fixedly mounted on the rear side of the temperature control box, a solar light source is mounted on the rear side of the inner cavity of the darkroom, the rear side of the temperature control box is connected to the darkroom via an opening, a first rolling shutter door is mounted on the rear side of the temperature control box, and a second rolling shutter door is mounted on the front side of the temperature control box;

[0007] An installation frame is fixedly installed inside the temperature control box, and a component support frame is installed inside the installation frame. The component support frame is used to install solar components. Several circulation fans are fixedly embedded on the upper surface of the installation frame, and a porous plate is fixedly embedded on the lower surface of the installation frame. An annular air duct is formed between the outer side surface of the installation frame and the inner wall of the temperature control box, and a heating wire, a refrigeration evaporator and a conduction fan are installed in the annular air duct.

[0008] Preferably, the component support frame includes an upper support plate and a lower support plate, the two ends of the lower support plate are respectively fixedly installed on the left and right sides of the inner cavity of the installation frame, the two ends of the upper support plate are fixedly installed with sliders, and the left and right side surfaces of the inner cavity of the installation frame are vertically fixed with guide rails, the two ends of the upper support plate are slidably connected to the guide rails through sliders, and a lifting drive assembly is provided in the installation frame, and the lifting drive assembly is used to drive the upper support plate to move up and down.

[0009] Preferably, the lifting drive assembly includes a driving motor, the driving shaft of the driving motor is connected to the driving shaft through a gear box, the driving shaft is rotatably installed above the inner cavity of the mounting frame through a bearing, driving gears are fixedly installed at both ends of the driving shaft, and a driven gear is installed in the middle of the left and right side walls of the mounting frame. The driving gear and the driven gear are connected by a transmission belt, and the side of the slider is fixedly connected to the transmission belt through a mounting splint.

[0010] Preferably, a guide elbow is installed at the corner position of the annular air duct.

[0011] Preferably, a temperature sensor is installed in the inner cavity of the mounting frame near the solar panel, and the signal output end of the temperature sensor is connected to the signal input end of the controller, and the signal output end of the controller is respectively connected to the control ports of the circulating fan, heating wire, refrigeration evaporator and conduction fan.

[0012] Preferably, the heating wire, refrigeration evaporator and conduction fan are each provided with two groups, and the two groups of heating wires, refrigeration evaporator and conduction fan are respectively arranged on the left and right sides of the annular air duct, and the upper and lower sides of the annular air duct are fixedly installed with V-shaped wire separators, and the V-shaped wire separators divide the annular air duct into a left air duct and a right air duct.

[0013] The present invention provides a temperature control device for testing solar panels. It has the following beneficial effects: by providing a heating wire, a cooling evaporator, and a conductive fan to achieve temperature control of the air flow, and by providing a ring-shaped air duct, installing a circulating fan above the mounting frame, and installing a porous plate below the mounting frame, the air can form a circulating flow effect, thereby making the air flow more uniform. As a result, the temperature of each position of the solar panel can be effectively controlled, so that the temperature uniformity reaches ±1 degree Celsius, and the test results are more accurate. Moreover, by connecting the darkroom with the inner cavity of the temperature control box, the sunlight source in the darkroom can be evenly irradiated on the surface of the solar panel, thereby ensuring that the power test of the panel can be performed accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for describing the prior art.

[0015] Figure 1 A schematic structural diagram of the utility model;

[0016] Figure 2 A schematic diagram of the cross-sectional structure of the present utility model;

[0017] Figure 3 A schematic cross-sectional view of the temperature control box of the present invention;

[0018] Figure 4 A schematic diagram of the structure inside the installation frame of the utility model;

[0019] Description of the numbers in the figure:

[0020] 1. Darkroom; 2. Temperature control box; 3. Solar light source; 4. First rolling door; 5. Second rolling door; 6. Mounting frame; 7. Module support frame; 8. Solar module; 9. Circulation fan; 10. Perforated plate; 11. Annular air duct; 12. Heating wire; 13. Refrigeration evaporator; 14. Conduction fan; 15. Guide rail; 16. Drive motor; 17. Driving shaft; 18. Driving gear; 19. Driven gear; 20. Transmission belt; 21. V-shaped wire separator; 22. Guide elbow; 71. Upper support plate; 72. Lower support plate; 73. Slider. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0022] Example 1, as Figure 1-4 As shown, a temperature control device for testing solar panels includes a darkroom 1 and a temperature control box 2. The darkroom 1 is fixedly mounted on the rear side of the temperature control box 2. A solar light source 3 is mounted on the rear side of the inner cavity of the darkroom 1. The rear side of the temperature control box 2 is connected to the darkroom 1 through an opening. A first rolling shutter door 4 is mounted on the rear side of the temperature control box 2, and a second rolling shutter door 5 is mounted on the front side of the temperature control box 2.

[0023] A mounting frame 6 is fixedly installed inside the temperature control box 2, and a component support frame 7 is installed inside the mounting frame 6. The component support frame 7 is used to install solar panels 8. A number of circulation fans 9 are fixedly embedded on the upper surface of the mounting frame 6, and a porous plate 10 is fixedly embedded on the lower surface of the mounting frame 6. An annular air duct 11 is formed between the outer side surface of the mounting frame 6 and the inner wall of the temperature control box 2. A heating wire 12, a refrigeration evaporator 13 and a conduction fan 14 are installed in the annular air duct 11.

[0024] In this embodiment, a temperature sensor can be installed in the inner cavity of the installation frame 6 near the solar panel 8, and the signal output end of the temperature sensor is connected to the signal input end of the controller. The signal output end of the controller is respectively connected to the control ports of the circulation fan 9, the heating wire 12, the refrigeration evaporator 13 and the conduction fan 14.

[0025] Working principle:

[0026] When testing the solar module 8 , the second shutter door 5 on the front side of the temperature control box 2 is first opened to install the solar module 8 to be tested on the module support frame 7 , and then the second shutter door 5 is closed.

[0027] During the test, the temperature inside the mounting frame 6 is first sensed by a temperature sensor and the temperature signal is transmitted to the controller, which processes the temperature signal. When the temperature inside the mounting frame 6 is too high, the controller can control the refrigeration evaporator 13 to operate to cool the air flow; when the temperature inside the mounting frame 6 is too low, the controller can control the heating wire 12 to operate to heat the air flow; then, the conduction fan 14 is controlled to operate to transport the temperature-controlled air to the top of the annular air duct 11, and then the circulating fan 12 blows the temperature-controlled air to the surface of the solar module 8, thereby achieving temperature control of the solar module 8. In this embodiment, a porous plate 10 is embedded in the lower surface of the mounting frame 6 to allow air to flow from the bottom of the mounting frame 6 back into the annular air duct 11, forming an air circulation effect, and then making the air flow more uniform. As a result, the temperature of each position of the solar module 8 can be effectively controlled, so that the temperature uniformity reaches ±1 degree Celsius, and the test results are more accurate.

[0028] When the temperature sensor detects that the temperature of solar module 8 has reached the required level, first roller shutter 4 is controlled to open, allowing darkroom 1 to communicate with the interior of temperature control box 2. This allows sunlight source 3 within darkroom 1 to evenly illuminate the surface of solar module 8, ensuring that the light source on the surface of solar module 8 reaches a 3A level (as specified in IEC60904), thereby ensuring accurate power testing of module 13. In this embodiment, the internal dimensions of temperature control box 2 are consistent with those of darkroom 1, allowing temperature control box 2 to function as an extension of darkroom 1. This ensures that key indicators such as uniformity and spectral matching of the original simulator are not affected during the test, thereby improving test accuracy.

[0029] Embodiment 2, as a further preferred embodiment of embodiment 1, the component support frame 7 includes an upper support plate 71 and a lower support plate 72. The two ends of the lower support plate 72 are fixedly mounted on the left and right sides of the inner cavity of the installation frame 6, respectively. Sliders 73 are fixedly mounted on both ends of the upper support plate 71. Guide rails 15 are vertically fixedly mounted on the left and right sides of the inner cavity of the installation frame 6. The two ends of the upper support plate 71 are slidably connected to the guide rails 15 through sliders. A lifting drive assembly is provided in the installation frame 6, which is used to drive the upper support plate 71 to move up and down. Therefore, when installing and fixing the solar panel 8, the solar panel 8 can be placed on the lower support plate 72 first, and then the upper support plate 71 can be driven to move up and down along the guide rails 15 by controlling the lifting drive assembly, so that the upper support plate 71 is pressed tightly against the upper surface of the solar panel 8, thereby achieving the installation and fixing effect of the solar panel 8.

[0030] Embodiment 3, as a further preferred embodiment of embodiment 2, the lifting drive assembly includes a drive motor 16, the drive shaft of the drive motor 16 is connected to the driving shaft 17 through a gear box, the driving shaft 17 is rotatably installed above the inner cavity of the mounting frame 6 through a bearing, and driving gears 18 are fixedly installed at both ends of the driving shaft 17. A driven gear 19 is installed in the middle of the left and right side walls of the mounting frame 6. The driving gear 18 and the driven gear 19 are connected to each other through a transmission belt 20, and the side of the slider 73 is fixedly connected to the transmission belt 20 through a mounting splint.

[0031] In the initial state, the upper support plate 71 is located at the uppermost position of the guide rail 15. When installing and fixing the solar panel 8, the solar panel 8 can be placed on the lower support plate 72 first, and then the drive motor 16 can be controlled to operate, and then the drive shaft of the drive motor 16 drives the driving shaft 17 to rotate, and then drives the driving gears 18 at both ends of the driving shaft 17. Since the driving gear 18 and the driven gear 19 are connected by the transmission belt 20, the rotation of the driving gear 18 can drive the transmission belt 20 to move, and then the transmission belt 20 can drive the slider 73 to move along the guide rail 15, and then drive the upper support plate 71 to move downward to be pressed and fixed to the upper surface of the solar panel 8. Similarly, when the solar panel 8 needs to be removed, the drive motor 16 is directly controlled to reverse, and the upper support plate 71 can be controlled to move upward along the guide rail 15 to facilitate the removal of the solar panel 8.

[0032] Embodiment 4, as a further preferred embodiment of embodiment 1, a guide elbow 22 is installed at the corner of the annular air duct 11. By arranging the guide elbow 22 at the corner, it is ensured that the air can be guided smoothly.

[0033] In Example 5, as a further preferred embodiment of Example 1, two sets of heating wires 12, cooling evaporators 13, and conductive fans 14 are each provided. The two sets of heating wires 12, cooling evaporators 13, and conductive fans 14 are respectively arranged on the left and right sides of the annular air duct 11. V-shaped wire separators 21 are fixedly mounted on the upper and lower sides of the annular air duct 11, dividing the annular air duct 11 into a left air duct and a right air duct. By providing two sets of heating wires 12, cooling evaporators 13, and conductive fans 14, the air temperature can be adjusted more quickly.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A temperature control device for testing solar panels, characterized by: The invention comprises a darkroom (1) and a temperature control box (2), wherein the darkroom (1) is fixedly mounted on the rear side of the temperature control box (2), a sunlight source (3) is mounted on the rear side of the inner cavity of the darkroom (1), the rear side of the temperature control box (2) is connected to the darkroom (1) through an opening, a first rolling shutter door (4) is mounted on the rear side of the temperature control box (2), and a second rolling shutter door (5) is mounted on the front side of the temperature control box (2); A mounting frame (6) is fixedly installed inside the temperature control box (2), a component support frame (7) is installed inside the mounting frame (6), and the component support frame (7) is used to install a solar component (8). A plurality of circulating fans (9) are fixedly embedded on the upper surface of the mounting frame (6), and a porous plate (10) is fixedly embedded on the lower surface of the mounting frame (6). An annular air duct (11) is formed between the outer side surface of the mounting frame (6) and the inner wall of the temperature control box (2), and a heating wire (12), a refrigeration evaporator (13) and a conduction fan (14) are installed in the annular air duct (11).

2. A temperature control device for testing solar modules according to claim 1, characterized in that: The component support frame (7) comprises an upper support plate (71) and a lower support plate (72), the two ends of the lower support plate (72) are respectively fixedly mounted on the left and right sides of the inner cavity of the installation frame (6), the two ends of the upper support plate (71) are fixedly mounted with sliders (73), the left and right side surfaces of the inner cavity of the installation frame (6) are vertically fixedly mounted with guide rails (15), the two ends of the upper support plate (71) are slidably connected to the guide rails (15) through the sliders, and a lifting drive assembly is provided in the installation frame (6), and the lifting drive assembly is used to drive the upper support plate (71) to move up and down.

3. A temperature control device for testing solar modules according to claim 2, characterized in that: The lifting drive assembly comprises a driving motor (16), a driving shaft of the driving motor (16) is connected to a driving shaft (17) through a gear box, the driving shaft (17) is rotatably mounted above the inner cavity of the mounting frame (6) through a bearing, driving gears (18) are fixedly mounted on both ends of the driving shaft (17), a driven gear (19) is mounted in the middle of the left and right side walls of the mounting frame (6), the driving gear (18) and the driven gear (19) are connected to each other through a transmission belt (20), and the side of the slider (73) is fixedly connected to the transmission belt (20) through a mounting clamp.

4. The temperature control device for solar module testing according to claim 1, characterized in that: A guide elbow (22) is installed at the corner position of the annular air duct (11).

5. The temperature control device for solar module testing according to claim 1, characterized in that: A temperature sensor is installed in the inner cavity of the installation frame (6) near the solar module (8), and the signal output end of the temperature sensor is connected to the signal input end of the controller, and the signal output end of the controller is respectively connected to the control ports of the circulation fan (9), the heating wire (12), the refrigeration evaporator (13) and the conduction fan (14).

6. The temperature control device for solar module testing according to claim 1, characterized in that: The heating wire (12), the refrigeration evaporator (13) and the conduction fan (14) are each provided with two groups, and the two groups of heating wires (12), the refrigeration evaporator (13) and the conduction fan (14) are respectively arranged on the left and right sides of the annular air duct (11), and a V-shaped wire separator (21) is fixedly installed on the upper side and the lower side of the annular air duct (11), and the V-shaped wire separator (21) separates the annular air duct (11) into a left air duct and a right air duct.

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