Heating and snow removing device for photovoltaic greenhouse assembly

Abstract

The utility model discloses a photovoltaic greenhouse assembly heating and snow removing device which comprises a supporting frame of a rectangular grid-shaped frame structure, and a plurality of sliding rails are arranged on one side edge of the frame in parallel. The top end of the sliding rail is of a slotted structure, one slotted end is fixedly connected with a motor through a bolt, and the other slotted end is fixedly connected with a bearing seat; the output end of the motor is connected with a long screw; the end part of the other side of the long screw rod is sleeved in the bearing seat through a bearing; a sliding block is arranged on the long screw rod and can slide in the sliding rail; mooring ropes are connected between the sliding blocks on the sliding rails, and the mooring ropes are arranged on the surface of the photovoltaic panel after being tightened and installed; according to the snow scraping device, the sliding rail is arranged, the mooring rope is adopted for sliding snow scraping, the automation degree is high, and accumulated snow smoothly slides down under the action of gravity; through the design of a lower cavity structure of the sliding rail, accumulated snow and ice in the sliding rail can be removed through a heating cable, normal operation of the sliding block is guaranteed, and the operation reliability of the rail is improved; finally, in order to reduce corrosion of rain and snow to parts in the sliding rail, a cover plate structure is designed.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic greenhouses, and particularly relates to a heating and snow removing device for photovoltaic greenhouse components. Background Technique

[0002] A photovoltaic greenhouse is a facility that uses solar energy to generate electricity, combining photovoltaic power generation technology and greenhouse technology. It usually consists of solar panels, a support structure, an inverter, cables, etc., and covers the top of the greenhouse. The main function of the photovoltaic greenhouse is to convert solar energy into electrical energy, while providing a suitable growth environment so that crops can grow under conditions of insufficient light or harsh climate. Photovoltaic greenhouses are common in the agricultural field and can be used to grow crops such as vegetables and fruits, and off-season vegetables can still be grown in winter.

[0003] However, when it snows, snow will accumulate on the top of the greenhouse. Long-term snow accumulation will affect the photovoltaic power generation efficiency and also cause damage to the photovoltaic panels. Therefore, snow removal from photovoltaic greenhouses is a problem that must be solved.

[0004] To address this problem, in the prior art, three methods are commonly used. One is manual cleaning, which is used for low photovoltaic panels. The disadvantage is that since the photovoltaic panels cannot be stepped on, the working radius of the workers is small. The second is to install heating devices such as hot air blowers on the top inside the greenhouse. The disadvantage of this method is that heating inside the greenhouse will have a greater impact on the temperature inside the greenhouse, and more heat is required, resulting in greater heat loss. The third is the sliding rail and cable-pulling type cleaning. This method is widely used. However, in actual winter operation, due to snow and ice accumulation in the track, the slider cannot slide normally, and thus the snow removal device fails.

[0005] Therefore, for the problem of snow removal from photovoltaic greenhouses, a low-consumption and reliable snow removal device is urgently needed. Content of the Utility Model

[0006] Aiming at the problems existing in the prior art, the utility model provides a heating and snow removing device for photovoltaic greenhouse components. Taking a heating cable as a rope and pulled by a slider, the heating cable moves up and down along the surface of the photovoltaic panel, which can first melt the bottom of the accumulated snow. Since the photovoltaic panel is arranged obliquely, under the action of gravity, the accumulated snow slides down easily; supplemented by the heating track design, no snow or ice will accumulate in the sliding rail, ensuring the normal operation of the slider.

[0007] The present utility model is realized as follows: It includes a support frame; the support frame is a rectangular grid frame structure, and the grid is used to place photovoltaic panels. A plurality of slide rails are arranged in parallel on one side edge of the frame; the top end of each slide rail is a grooved structure, and a motor is bolted to one end of the groove, and a bearing seat is fixed to the other end of the groove; the output end of the motor is coaxially connected to a long screw; the other end of the long screw is a shaft structure and is sleeved in the bearing seat through a bearing; a slider is arranged on the long screw, and the slider is provided with an internal thread hole.

[0008] Cables are connected between the sliders on each slide rail. After the cables are tensioned and installed, they are placed on the surface of the photovoltaic panels. Driven by the sliders, the cables slide up and down along the surface of the photovoltaic panels.

[0009] Preferably, the slide rail is an orbital structure provided with an upper groove and a lower cavity; a heating cable is arranged in the lower cavity, and the heating cable can melt the snow and ice falling into the slide rail, facilitating the stable operation of the slider.

[0010] Preferably, drain holes are provided at the bottoms of both sides of the upper groove of the slide rail.

[0011] Preferably, the cable is a ceramic electric heating cable with an insulating rubber sheath outside.

[0012] Preferably, a cover plate is arranged on the slide rail; the cover plate is provided with a groove for the cable to slide and is bolted to the side plate of the slide rail. The cover plate can prevent snowflakes from falling into the slide rail.

[0013] The working principle of the present utility model is as follows:

[0014] When laying a photovoltaic greenhouse, the support frame structure of the present utility model is adopted. According to the actual photovoltaic area, slide rails, sliders, cables, etc. are set on the support frame. It should be noted that the height of the connection between the slider and the cable should be flush with the photovoltaic panel. During laying, the slide rail welding mode between the frames can be adopted. When in use, the heating cable in the lower cavity of the slide rail can be started first for preheating to melt the snow and ice in the upper cavity of the slide rail and drain it through the drain holes. Then the motor is started to drive the long screw to drive the cable to scrape up and down to complete the snow removal task. If the surface of the photovoltaic panel is already frozen and there is snow covering the ice surface, at this time, the cable can be replaced with a heating cable to remove snow and melt ice. If the cable is a heating cable, the power connection wire between the heating cable and the slider at the connection should be connected to the power supply with a longer wire. The long wire should meet the sliding stroke of the slider and avoid being pulled and broken; since the snow removal work is only used in winter, lubrication and rust removal maintenance can be carried out in summer to meet the use conditions for many years.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The utility model is provided with a slide rail and uses a cable for sliding snow scraping, with a relatively high degree of automation, enabling the snow to slide down smoothly under the action of gravity. Moreover, through the design of the cavity-opening structure under the slide rail, the heating cable can be used to remove the snow and ice accumulated in the slide rail, ensuring the normal operation of the slider and improving the reliability of the track operation. Finally, in order to reduce the erosion of rain and snow on the parts inside the slide rail, a cover plate structure is designed.

[0017] 2. The structure of the utility model is simple and convenient to operate, without the need for manual cleaning and hot air blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model for a greenhouse;

[0019] Figure 2 is a three-dimensional schematic diagram of the support structure of the utility model;

[0020] Figure 3 is a schematic diagram of several groups of slide rail structures of the utility model;

[0021] Figure 4 is a schematic diagram of the slide rail structure of the utility model;

[0022] Figure 5 is a schematic diagram of the slide rail structure provided with a cover plate of the utility model.

[0023] In the figure: 1. Photovoltaic panel; 2. Support frame; 3. Slide rail; 4. Cable; 5. Motor; 6. Long screw; 7. Bearing seat; 8. Slider; 9. Upper slot; 10. Lower cavity; 11. Heating cable; 12. Drainage hole; 13. Cover plate; 14. Slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to further understand the inventive content, features and effects of the utility model, the following embodiments are cited and described in detail in conjunction with the accompanying drawings.

[0025] The structure of the utility model will be described in detail below with reference to the accompanying drawings.

[0026] Refer to Figure 1 , a heating and snow-removing device for a photovoltaic greenhouse component provided by an embodiment of the utility model includes a support frame 2, and the support frame 2 is erected on the top of the inclined surface of the greenhouse; refer to Figure 2 , the support frame 2 is a rectangular grid-shaped square iron pipe frame structure, and the grid is used for placing photovoltaic panels; refer to Figure 3 , a plurality of slide rails 3 are arranged in parallel on one side of the frame; refer to Figure 4, the top of each slide rail 3 is a grooved structure. One end of the groove is bolted with a motor 5, and the other end of the groove is fixedly connected with a bearing seat 7; the output end of the motor 5 is coaxially welded with a long screw rod 6; the other end of the long screw rod 6 is a shaft structure and is sleeved in the bearing seat 7 through a bearing; a slider 8 is arranged on the long screw rod 6, and the slider 8 is provided with an internal threaded hole.

[0027] Cables 4 are connected between the sliders 8 on each slide rail 3. After the cables 4 are tensioned and installed, they are placed on the surface of the photovoltaic panel. Driven by the sliders 8, the cables 4 slide up and down along the surface of the photovoltaic panel.

[0028] Preferably, further, the slide rail 3 is an orbital structure provided with an upper groove 9 and a lower cavity 10; a heating cable 11 is arranged in the lower cavity 10. The heating cable 11 can melt the snow and ice accumulated in the slide rail 3, facilitating the stable operation of the slider 8. After the heating cable 11 is inserted into the lower cavity 10, one end is directly blocked with a square end cover, and the other end is blocked after leaving a power connection wire to prevent snow water from flowing in from both sides.

[0029] Preferably, further, drain holes 12 are provided at the bottoms of both side surfaces of the upper groove 9 of the slide rail 3.

[0030] Preferably, further, the cable 4 is a ceramic electric heating cable with an insulating rubber sheath outside, which can be used for quickly melting snow and ice; it should be noted that if the cable 4 is a heating cable, the power connection wire between the cable at the connection of the heating cable and the slider 8 and the power supply should be connected with a longer wire. The long wire should meet the sliding stroke of the slider and avoid being pulled and broken.

[0031] Preferably, further, see Figure 5 , a cover plate 13 is arranged on the slide rail 3; the cover plate 13 is provided with a groove 14 for the cable 4 to slide and is bolted to the side plate of the slide rail 3. The cover plate 13 can prevent snowflakes from falling into the slide rail 3.

[0032] The working principle of the present utility model:

[0033] During use, first start the heating cable 11 to preheat the slide rail 3 to prevent the slider 8 from being affected by accumulated snow and ice. Then start the motor 5 at the same time. Through the long screw rod 6, the slider 8 drives the cable 4 to move upward. After moving in place, the motor reverses, and the slider 8 drives the cable 4 to move downward; the cable 4 moves back and forth along the surface of the photovoltaic panel, loosening the bottom of the accumulated snow. At this time, the accumulated snow slides down under the action of gravity. If not all of it slides down, the cable 4 can be made to slide again until all the accumulated snow is cleared. When the surface of the photovoltaic panel is already frozen, the cable 4 can be selected as a ceramic electric heating cable with an insulating rubber sheath outside, which can melt the ice while scraping the snow.

[0034] In summary, after this device is applied to a certain photovoltaic greenhouse in Shuangliao, Jilin, the snow removal effect is obvious, and there is no need for manual trampling and cleaning anymore, avoiding risks. At the same time, this device is easy to operate and convenient for maintenance and repair.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating and snow removal device for a photovoltaic greenhouse component, comprising a support frame (2), characterized in that: The support frame (2) is a rectangular grid frame structure, and the grid is used to place photovoltaic panels. A plurality of slide rails (3) are arranged in parallel on one side of the frame; the top end of each slide rail (3) is a grooved structure, and a motor (5) is bolted to the grooved end, and a bearing seat (7) is fixed to the other grooved end; the output end of the motor (5) is coaxially connected to a long screw rod (6); the other end of the long screw rod (6) is an axial structure and is sleeved in the bearing seat (7) through a bearing; a slider (8) is arranged on the long screw rod (6), and the slider (8) is provided with an internal threaded hole. A cable (4) is connected between the sliders (8) on each slide rail (3), and the cable (4) is tensioned and installed on the surface of the photovoltaic panel.

2. The heating and snow removal device for a photovoltaic greenhouse component according to claim 1, characterized in that: The slide rail (3) is a track structure provided with an upper groove (9) and a lower cavity (10); a heating cable (11) is arranged in the lower cavity (10).

3. The heating and snow removal device for a photovoltaic greenhouse component according to claim 2, characterized in that: Drainage holes (12) are arranged at the bottoms of both sides of the upper groove (9) of the slide rail (3).

4. The heating and snow removal device for a photovoltaic greenhouse component according to claim 1, characterized in that: The cable (4) is a ceramic electric heating cable with an insulating rubber sheath outside.

5. The heating and snow removal device for a photovoltaic greenhouse component according to claim 1, wherein: A cover plate (13) is arranged on the slide rail (3); the cover plate (13) is provided with a groove (14) for the cable (4) to slide, and is bolted to the side plate of the slide rail (3).

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