Solar cell panel temperature adjusting device suitable for mountain photovoltaic power station

Abstract

The utility model provides a solar cell panel temperature adjusting device suitable for a mountain photovoltaic power station. The device comprises a base and a photovoltaic support, a solar cell panel body is installed in the photovoltaic support, a temperature adjusting pipe is arranged on the bottom face in the photovoltaic support, and the solar cell panel body is located above the temperature adjusting pipe; a temperature adjusting box is fixed in the base, the interior of the temperature adjusting box is divided into an upper partition cavity and a lower partition cavity through a heat insulation plate, a heating piece is arranged in the upper partition cavity, a semiconductor chilling plate is arranged in the lower partition cavity, a first water pump and a second water pump are arranged in the base, and the first water pump is used for pumping hot water in the upper partition cavity of the temperature adjusting box into a temperature adjusting pipe in a circulating mode. The second water pump is used for circularly pumping cold water in the lower partition cavity of the temperature adjusting box into the temperature adjusting pipe. Cold water or hot water is stored in the temperature adjusting box, and the temperature of the solar cell panel is adjusted through hot water circulation or cold water circulation, so that the using effect of the solar cell panel is guaranteed, and the influence on output power is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar cell panel calibration technical field, especially in mountainous area photovoltaic power station's solar cell panel temperature regulating device. BACKGROUND

[0002] The calibration of solar cell panels mainly involves the following aspects: temperature calibration, light intensity calibration, data analysis calibration, maintenance and maintenance calibration, wherein temperature is an important factor affecting the efficiency of solar photovoltaic power generation, therefore, temperature calibration needs to accurately measure the temperature of photovoltaic cells and the ambient temperature to ensure the stable operation of the system.

[0003] Solar cell panels are devices that convert solar radiation energy into electrical energy through photovoltaic or photochemical effects. During use, the temperature of solar cell panels increases with the increase of working time. Ordinary air cooling methods cannot effectively cool solar cell panels. Since temperature regulation is not possible, the components of solar cell panels may be damaged when the temperature is too high, which cannot protect the solar cell panels and reduces their service life.

[0004] Chinese patent authorization announcement No. CN 215344459 U discloses a photovoltaic module with photovoltaic cell panel temperature regulation function, which comprises a base, a support rod is fixedly connected to the right end of the upper end surface of the base, the other end of the support rod is rotatably connected to a frame through a rotating base, and a solar cell panel is arranged inside the frame. The water inlet joint is connected to the cooling water pipe. The motor is started by controlling the switch, so that the motor drives the first lead screw to rotate, and the moving plate moves left and right above the solar cell panel under the cooperation of the slide rod. The water pump sprays cooling water to the surface of the solar cell panel through the spray head, finally realizes the purpose of cooling the solar cell panel, effectively prevents the service life of the solar cell panel from being reduced due to long-term high temperature, and the brush can clean the surface of the solar cell panel during the cooling process.

[0005] Although the above-mentioned patent can cool the solar cell panel, it cannot regulate the temperature of the solar cell panel in a low-temperature environment. Due to different use environments of solar cell panels, there is a large difference between the temperature at night and the temperature during the day in winter in mountainous areas. In high-cold areas, solar cell panels also face the problem of too low temperature at night. When the temperature of the solar cell panel is too low, it will affect the output power, so the solar cell panel is in an abnormal temperature range, which may cause the important components to be damaged. Utility model content

[0006] The utility model discloses a purpose lies in providing a kind of solar cell panel temperature regulating device suitable for mountain photovoltaic power station, the device can cool solar cell panel under high temperature, it is warmed under low temperature environment, to solve the problem of not being convenient for the solar cell panel to be warmed and adjusted in the background art proposed.

[0007] To achieve the above object, the utility model provides a kind of solar cell panel temperature regulating device suitable for mountain photovoltaic power station, the device includes base and the photovoltaic support fixed on base, solar cell panel main body is installed in photovoltaic support, the bottom surface of inside photovoltaic support is laid with temperature regulating pipe, and the solar cell panel main body is located temperature regulating pipe top; The inside of base is fixed with temperature regulating box, the inside of temperature regulating box is separated into two separate cavities by heat insulation plate, heating element is equipped in upper portion separate cavity, and semiconductor refrigerating sheet is equipped in lower portion separate cavity, first water pump and second water pump are equipped in base, the water inlet of first water pump is communicated with the upper portion separate cavity of temperature regulating box by first water inlet pipe, and the water outlet of first water pump is communicated with the water inlet end of temperature regulating pipe by first water outlet pipe, the water inlet of second water pump is communicated with the lower portion separate cavity of temperature regulating box by second water inlet pipe, and the water outlet of second water pump is communicated with the water inlet end of temperature regulating pipe by second water outlet pipe;First drain pipe is equipped on the side of temperature regulating box upper portion separate cavity away from first water inlet pipe, and the first drain pipe is communicated with the water outlet end of temperature regulating pipe, second drain pipe is equipped on the side of temperature regulating box lower portion separate cavity away from second water inlet pipe, and the second drain pipe is also communicated with the water outlet end of temperature regulating pipe, and control valve is respectively arranged on first drain pipe and second drain pipe.

[0008] The utility model more preferably technical scheme: the bottom of photovoltaic support is provided with singlechip, temperature sensor is equipped on the both sides of solar cell panel main body, the signal output end of temperature sensor is connected with the signal input end of singlechip, and the output of singlechip is connected with the control valve on the two drain pipes, heating element and the control end of semiconductor refrigerating sheet respectively with first water pump, second water pump.

[0009] The utility model more preferably technical scheme: the both sides of temperature regulating box are respectively provided with heat conduction groove, and the slot of each heat conduction groove is located on the top surface of base.

[0010] The utility model more preferably technical scheme: first water pump and second water pump are arranged on the side of temperature regulating box, and evenly heat dissipation groove is set up on the side close to water pump in the inside of base, and the section of heat dissipation groove is all set to rectangle.

[0011] The utility model more preferably technical scheme: solar cell panel mounting groove is equipped on photovoltaic support, and temperature regulating pipe is serpentine and arranged on the bottom surface of solar cell panel mounting groove.

[0012] The utility model discloses a better technical scheme: heating piece is equipped with two groups, and is symmetrically arranged on the two sides of the upper cavity inner wall of the temperature adjusting box, and the semiconductor refrigerating sheet is also equipped with two groups, and is symmetrically arranged on the two sides of the lower cavity inner wall of the temperature adjusting box.

[0013] The utility model discloses a better technical scheme: the top of temperature adjusting box is provided with motor, and the output of motor is connected with first rotary axis, and first rotary axis penetrates the upper and lower two compartments of temperature adjusting box, and the first rotary axis is uniformly provided with stirring rod in the area of the upper compartment of temperature adjusting box, and the lower compartment of temperature adjusting box is equipped with turnover mechanism, and the bottom of first rotary axis is connected with turnover mechanism through transmission mechanism.

[0014] The utility model discloses a better technical scheme: the bottom of first rotary axis is equipped with fixed box, and transmission mechanism is installed in fixed box, and the bottom of first rotary axis is in the inside of fixed box, and transmission mechanism includes the second bevel gear of fixed in the end of first rotary axis and the first bevel gear of symmetric setting in the two sides of second bevel gear and respectively with second bevel gear meshing, and the turnover mechanism includes the second rotary axis of symmetric setting in the both sides of fixed box, and two second rotary axes are rotatably installed on temperature adjusting box, and the one end of two rotary axes near fixed box respectively extends into fixed box and is connected with two first bevel gears, and the flap is uniformly fixed on every second rotary axis, and the section of flap all sets arc.

[0015] Compared with the prior art, the utility model has the beneficial effects of:

[0016] (1) the utility model discloses the temperature calibration function of photovoltaic board is realized, and the temperature value of solar cell panel main part can be detected through the temperature sensor, when being influenced by mountainous environment, and when being too high or too low, it will signal transmission to the singlechip, and the singlechip controls semiconductor refrigerating sheet or heating piece to start, so that the cold water or hot water in the temperature adjusting box is stored, when using hot water, opens the control valve on the first drain pipe, and the first water pump starts and through the first water inlet pipe and the first water outlet pipe, water flow is delivered to the temperature adjusting pipe, to heat solar cell panel main part, and the water flow reenters the temperature adjusting box and is collected, when using cold water, opens the control valve on the second drain pipe, and the second water pump starts and through the second water inlet pipe and the second water outlet pipe, water flow is delivered to the temperature adjusting pipe, to cool solar cell panel main part, that is, through the automatic temperature adjustment calibration of solar cell panel main part temperature to guarantee its use effect, avoid the influence to output power.

[0017] (2)The utility model discloses a first rotating shaft is arranged on the temperature calibration, and the starting motor drives the rotation of first rotating shaft, and first rotating shaft drives the rotation of outside stirring rod, and the bottom is synchronous through the meshing effect of first bevel gear and second bevel gear and drives the rotation of both sides second rotating shaft, i. e. drive the rotation of the flap outside second rotating shaft, make in the heating process, the upper stirring rod carries out the stirring to water flow to make water temperature can be fast and even, in the cooling process, the flap is turned over to the upper and lower water flow, and cooperate stirring rod to improve water temperature regulation effect;

[0018] (3) Through setting up the heat conduction groove, when the semiconductor refrigeration piece carries out the heat exchange in the use process, the air circulation phenomenon caused by the sealed environment can be avoided, thereby guarantee the use effect of the element. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, other drawings can also be obtained according to these drawings.

[0020] Figure 1 It is the whole structure schematic diagram of the utility model;

[0021] Figure 2 It is the inside structure schematic diagram of the temperature regulating box of the utility model;

[0022] Figure 3 It is the inside structure schematic diagram of the fixed box of the utility model;

[0023] Figure 4 It is the inside structure schematic diagram of the base of the utility model;

[0024] Figure 5 It is the photovoltaic support structure schematic diagram of the utility model;

[0025] Figure 6 It is the photovoltaic support section structure schematic diagram of the utility model.

[0026] The following are the labels in the diagram: 1. Solar panel body; 2. Photovoltaic support; 3. Temperature control box; 4. Base; 5. Motor; 6. First drain pipe; 7. Second drain pipe; 8. Heating element; 9. Insulation board; 10. Semiconductor cooling chip; 11. Heat conduction groove; 12. Fixing box; 13. First rotating shaft; 14. Flip plate; 15. Stirring rod; 16. Second rotating shaft; 17. First bevel gear; 18. Second bevel gear; 19. First water pump; 20. First water inlet pipe; 21. Second water inlet pipe; 22. Second water pump; 23. Temperature sensor; 24. Temperature control pipe; 25. Control valve; 26. First water outlet pipe; 27. Second water outlet pipe; 28. Microcontroller. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] To address the limitation of existing technologies in temperature regulation of the solar panel body 1, Embodiment 1 provides a solar panel temperature regulation device suitable for mountain photovoltaic power stations, such as... Figures 1 to 6 As shown, the device includes a base 4 and a photovoltaic bracket 2 fixed on the base 4. The photovoltaic bracket 2 is an existing technology and can be set with a fixed angle or an adjustable angle. The photovoltaic bracket 2 is provided with a solar panel mounting groove, in which a solar panel body 1 is installed. A temperature regulating pipe 24 is arranged on the bottom surface inside the photovoltaic bracket 2. The temperature regulating pipe 24 is arranged in a serpentine pattern on the bottom surface of the solar panel mounting groove. The solar panel body 1 is located above the temperature regulating pipe 24, and the temperature of the solar panel body 1 is regulated by the temperature regulating pipe 24.

[0029] To enable temperature regulation, a temperature regulating box 3 is fixed inside the base 4. The interior of the temperature regulating box 3 is divided into upper and lower compartments by a heat insulation plate 9. A heating element 8 is provided in the upper compartment. Two sets of the heating element 8 are symmetrically arranged on both sides of the inner wall of the upper compartment of the temperature regulating box 3 to heat the water in the upper compartment, thus providing hot water for heating the solar panel body 1. A semiconductor cooling chip 10 is provided in the lower compartment. Two sets of the semiconductor cooling chip 10 are also symmetrically arranged on both sides of the inner wall of the lower compartment of the temperature regulating box 3 to cool the water in the lower compartment, thus providing cold water for cooling the solar panel body 1. A first water pump 19 and a second water pump 22 are installed inside the base 4, both located on the same side of the temperature control chamber 3. The inlet of the first water pump 19 is connected to the upper cavity of the temperature control chamber 3 via a first inlet pipe 20, and the outlet of the first water pump 19 is connected to the inlet of the temperature control pipe 24 via a first outlet pipe 26. The first water pump 19 is used to control the water circulation in the upper cavity of the temperature control chamber 3. The inlet of the second water pump 22 is connected to the lower cavity of the temperature control chamber 3 via a second inlet pipe 21. The outlet of the water tank is connected to the inlet of the temperature regulating pipe 24 through the second outlet pipe 27. The second water pump is used to control the water circulation in the lower compartment of the temperature regulating box 3. A first drain pipe 6 is provided on the side of the upper compartment of the temperature regulating box 3 away from the first inlet pipe 20. The first drain pipe 6 is connected to the outlet of the temperature regulating pipe 24. A second drain pipe 7 is provided on the side of the lower compartment of the temperature regulating box 3 away from the second inlet pipe 21. The second drain pipe 7 is also connected to the outlet of the temperature regulating pipe 24. Control valves 25 are respectively provided on the first drain pipe 6 and the second drain pipe 7.

[0030] When using hot water, open the control valve 25 on the first drain pipe 6, start the first water pump 19, and deliver water to the temperature regulating pipe 24 through the first inlet pipe 20 and the first outlet pipe 26 to heat the solar panel body 1. The water flows back into the upper compartment of the temperature regulating box 3 for collection. When using cold water, open the control valve 25 on the second drain pipe 7, start the second water pump 22, and deliver water to the temperature regulating pipe 24 through the second inlet pipe 21 and the second outlet pipe 27 to cool the solar panel body 1. The water flows back into the lower compartment of the temperature regulating box 3 for collection.

[0031] In Example 1, as Figure 2 As shown, heat dissipation grooves are evenly distributed inside the base 4 on the side near the water pump 19, and the cross-section of each heat dissipation groove is rectangular to facilitate heat dissipation from the water pump. Heat conduction grooves 11 are respectively provided on both sides of the temperature control box 3, and the opening of each heat conduction groove 11 is located on the top surface of the base 4.

[0032] In order to be able to automatically control the whole device, the solar cell panel temperature adjusting device suitable for mountain photovoltaic power station in embodiment one is provided with a single-chip microcomputer 28 at the bottom end of the photovoltaic support 2, and temperature sensors 23 are arranged at both sides of the solar cell panel body 1, the signal output ends of the temperature sensors 23 are connected with the signal input ends of the single-chip microcomputer 28, and the output ends of the single-chip microcomputer 28 are connected with the control ends of the first water pump 19, the second water pump 22, the control valves 25 on the two drain pipes, the heating element 8 and the semiconductor refrigeration sheet 10 respectively. The temperature of the solar cell panel body 1 is sensed by the temperature sensors 23, so that the temperature signal is transmitted to the single-chip microcomputer 28, when the temperature is too high, the control valve 25 on the second drain pipe 7 is opened by the single-chip microcomputer, and the second water pump 22 is controlled to work, so that the cold water in the lower layer partition cavity of the temperature adjusting box 3 is circulated into the temperature adjusting pipe 24 to cool the solar cell panel body 1; during the circulation process, the semiconductor refrigeration sheet 10 is automatically controlled to work to refrigerate, so that the water in the lower layer partition cavity of the temperature adjusting box 3 is kept as low-temperature water. When the temperature sensed by the temperature sensor 23 is too low, the control valve 25 on the first drain pipe 6 is opened by the single-chip microcomputer, and the first water pump 19 is controlled to work, so that the hot water in the upper layer partition cavity of the temperature adjusting box 3 is circulated into the temperature adjusting pipe 24 to heat the solar cell panel body 1; during the circulation process, the heating element 8 is automatically controlled to work to heat the water in the upper layer partition cavity of the temperature adjusting box 3.

[0033] In the embodiment, the temperature value of the solar cell panel body 1 can be detected by the temperature sensor 23 during use, when the temperature is too high or too low due to the influence of the mountain environment, the signal is transmitted to the single-chip microcomputer 28, the single-chip microcomputer 28 controls the semiconductor refrigeration sheet 10 or the heating element 8 to start, so that the temperature adjusting box 3 stores cold water or hot water, when the hot water is used, the control valve 25 on the first drain pipe 6 is opened, the first water pump 19 is started and water flow is delivered into the temperature adjusting pipe 24 through the first water inlet pipe 20 and the first water outlet pipe 26 to heat the solar cell panel body 1, the water flow flowing through reenters the temperature adjusting box 3 to be collected, when the cold water is used, the control valve 25 on the second drain pipe 7 is opened, the second water pump 22 is started and water flow is delivered into the temperature adjusting pipe 24 through the second water inlet pipe 21 and the second water outlet pipe 27 to cool the solar cell panel body 1, that is, the temperature of the solar cell panel body 1 is automatically adjusted and calibrated to ensure the use effect and avoid affecting the output power.

[0034] In order to make the water temperature in the upper and lower layer partition cavities of the temperature adjusting box 3 uniform, the solar cell panel temperature adjusting device suitable for mountain photovoltaic power station provided in embodiment two is provided with a stirring device on the temperature adjusting box 3 on the basis of embodiment one. Figures 1 to 6As shown, the temperature control box 3 is provided with a motor 5 at the top end of the temperature control box 3, an output end of the motor 5 is connected with a first rotating shaft 13, and the first rotating shaft 13 penetrates through the upper and lower two compartments of the temperature control box 3; a stirring rod 15 is uniformly arranged at the region of the first rotating shaft 13 located in the upper compartment of the temperature control box 3, and a turnover mechanism is arranged in the lower compartment of the temperature control box 3, and a bottom end of the first rotating shaft 13 is connected with the turnover mechanism through a transmission mechanism; an output end of the single-chip microcomputer 28 is connected with a control end of the motor 5. A fixed box 12 is arranged at the bottom end of the first rotating shaft 13, the transmission mechanism is arranged in the fixed box 12, the bottom end of the first rotating shaft 13 is arranged in the interior of the fixed box 12, the transmission mechanism comprises a second bevel gear 18 arranged at the end of the first rotating shaft 13 and a first bevel gear 7 symmetrically arranged at both sides of the second bevel gear 18 and engaged with the second bevel gear 18; the turnover mechanism comprises a second rotating shaft 16 symmetrically arranged at both sides of the fixed box 12, the two second rotating shafts 16 are rotatably arranged on the temperature control box 3, one end of the two second rotating shafts 16 near the fixed box 12 respectively extends into the fixed box 12 and is connected with the two first bevel gears 7, and a turnover plate 14 is uniformly arranged on each second rotating shaft 16, and the cross section of the turnover plate 14 is arranged in an arc shape.

[0035] In the embodiment, the water flow is stirred to accelerate the uniform temperature of the water flow, in use, the motor 5 is started to drive the first rotating shaft 13 to rotate, the first rotating shaft 13 drives the outer stirring rod 15 to rotate, and the bottom is synchronously driven to rotate the two second rotating shafts 16 through the meshing action of the first bevel gear 17 and the second bevel gear 18, that is, the turnover plate 14 outside the second rotating shaft 16 is driven to rotate, so that in the heating process, the upper stirring rod 15 stirs the water flow to make the water temperature quickly and uniformly, in the cooling process, the turnover plate 14 stirs the upper and lower water flows, and cooperates with the stirring rod 15 to improve the water temperature adjusting effect.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A solar panel temperature regulating device suitable for mountain photovoltaic power stations, comprising a base (4) and a photovoltaic support (2) fixed on the base (4), a solar panel main body (1) is installed in the photovoltaic support (2), characterized in that: The bottom surface inside the photovoltaic support (2) is provided with a temperature regulating pipe (24), and the solar cell panel body (1) is located above the temperature regulating pipe (24); the inside of the base (4) is fixed with a temperature regulating box (3), the inside of the temperature regulating box (3) is divided into two separate cavities by a heat insulation plate (9), a heating element (8) is arranged in the upper cavity, and a semiconductor refrigeration sheet (10) is arranged in the lower cavity; a first water pump (19) and a second water pump (22) are arranged in the base (4), the water inlet of the first water pump (19) is communicated with the upper cavity of the temperature regulating box (3) through a first water inlet pipe (20), the water outlet of the first water pump (19) is communicated with the water inlet end of the temperature regulating pipe (24) through a first water outlet pipe (26), the water inlet of the second water pump (22) is communicated with the lower cavity of the temperature regulating box (3) through a second water inlet pipe (21), and the water outlet of the second water pump (22) is communicated with the water inlet end of the temperature regulating pipe (24) through a second water outlet pipe (27); a first drain pipe (6) is arranged on the side of the upper cavity of the temperature regulating box (3) away from the first water inlet pipe (20), the first drain pipe (6) is communicated with the water outlet end of the temperature regulating pipe (24), a second drain pipe (7) is arranged on the side of the lower cavity of the temperature regulating box (3) away from the second water inlet pipe (21), the second drain pipe (7) is also communicated with the water outlet end of the temperature regulating pipe (24), and control valves (25) are arranged on the first drain pipe (6) and the second drain pipe (7) respectively.

2. The solar panel temperature regulating device for mountainous photovoltaic power station according to claim 1, characterized in that: The bottom end of the photovoltaic support (2) is provided with a single-chip microcomputer (28), temperature sensors (23) are arranged on both sides of the solar cell panel body (1), the signal output end of the temperature sensor (23) is connected with the signal input end of the single-chip microcomputer (28), and the output end of the single-chip microcomputer (28) is connected with the control end of the first water pump (19), the second water pump (22), the control valves (25) on the two drain pipes, the heating element (8) and the semiconductor refrigeration sheet (10) respectively.

3. The solar panel temperature regulating device for mountainous photovoltaic power stations according to claim 1 or 2, characterized in that: Heat conduction grooves (11) are arranged on both sides of the temperature regulating box (3), and the groove openings of each heat conduction groove (11) are located on the top surface of the base (4).

4. The solar panel temperature regulating device for mountainous photovoltaic power stations according to claim 1 or 2, characterized in that: The first water pump (19) and the second water pump (22) are arranged on one side of the temperature regulating box (3), and heat dissipation grooves are uniformly arranged on the side of the base (4) close to the water pump (19), and the cross sections of the heat dissipation grooves are all rectangular.

5. The solar panel temperature regulating device for mountainous photovoltaic power stations according to claim 1 or 2, characterized in that: A solar cell panel mounting groove is arranged on the photovoltaic support (2), and the temperature regulating pipe (24) is arranged in a snake shape on the bottom surface of the solar cell panel mounting groove.

6. The solar panel temperature regulating device for mountainous photovoltaic power stations according to claim 1 or 2, characterized in that: The heating element (8) is provided with two groups and is symmetrically arranged on the two sides of the inner wall of the upper cavity of the temperature regulating box (3); the semiconductor refrigeration sheet (10) is also provided with two groups and is symmetrically arranged on the two sides of the inner wall of the lower cavity of the temperature regulating box (3).

7. The solar panel temperature regulating device for mountainous photovoltaic power station according to claim 2, characterized in that: The top end of the temperature control box (3) is provided with a motor (5), the output end of the motor (5) is connected with a first rotating shaft (13), and the first rotating shaft (13) penetrates through the upper and lower two compartments of the temperature control box (3); the first rotating shaft (13) is uniformly provided with stirring rods (15) in the region of the upper compartment of the temperature control box (3), and a turnover mechanism is arranged in the lower compartment of the temperature control box (3), and the bottom end of the first rotating shaft (13) is connected with the turnover mechanism through a transmission mechanism; the output end of the single-chip microcomputer (28) is connected with the control end of the motor (5).

8. The solar panel temperature regulating device for mountainous photovoltaic power stations according to claim 7, characterized in that: A fixing box (12) is arranged at the bottom end of the first rotating shaft (13), the transmission mechanism is arranged in the fixing box (12), the bottom end of the first rotating shaft (13) is arranged in the interior of the fixing box (12), the transmission mechanism comprises a second bevel gear (18) fixed at the end of the first rotating shaft (13) and first bevel gears (7) symmetrically arranged at the two sides of the second bevel gear (18) and respectively engaged with the second bevel gear (18); the turnover mechanism comprises second rotating shafts (16) symmetrically arranged at the two sides of the fixing box (12), the two second rotating shafts (16) are rotatably arranged on the temperature control box (3), one end of the two second rotating shafts (16) near the fixing box (12) respectively extends into the fixing box (12) and is connected with the two first bevel gears (7), and the turnover plates (14) are uniformly arranged on each second rotating shaft (16), and the cross sections of the turnover plates (14) are arranged in arc shape.

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