A solar heat collecting device

Abstract

The application relates to the technical field of solar heat collecting devices, in particular to a solar heat collecting device which comprises a frame and a solar photovoltaic panel arranged in the frame, a plurality of first straight grooves are arranged transversely on the solar photovoltaic panel, a plurality of second straight grooves are arranged longitudinally on the solar photovoltaic panel, the first straight grooves are inserted into the second straight grooves at equal intervals, a plurality of rectangular grids with the same size are formed on the solar photovoltaic panel, two racks are arranged on the slide rail, a bidirectional electric cylinder is arranged in the middle of the slide rail, one action rod of the bidirectional electric cylinder is connected to the bottom end of the upper rack, and the ice layer or the snow can be automatically cleaned from the solar photovoltaic panel in a short time by reducing the adhesion of the ice layer or the snow on the solar photovoltaic panel in addition to being melted by the heat effect and being destroyed by the rotating pipe.

Description

Technical Field

[0001] This invention relates to the field of solar thermal collection equipment technology, and in particular to a solar thermal collection device. Background Technology

[0002] Solar thermal collectors consist of solar photovoltaic panels, heating elements, solar converters, pipes, and circuits. The photovoltaic panels absorb sunlight, convert it into electricity via the solar converter, store the electricity in the module, and then automatically control the module to deliver the electricity to the heating elements for user heating. To address the problem of photovoltaic panel icing, Chinese patent application CN202010625559.9 discloses a solar thermal collection device. In this device, an electromagnetic valve at the outlet of the first water pipe allows rainwater collected in a rainwater collection tank to flow out along the first outlet pipe and simultaneously flow along the guide grooves on the surface of the first protective plate into the photovoltaic panels inside the solar collection box. However, it is well known that if rainwater flows onto the photovoltaic panels, it not only fails to solve the problem of icing on the panel surface, but the rainwater also quickly freezes upon cooling. Therefore, the existing measures to prevent icing on the photovoltaic panel surface are unreasonable, and their solutions are even difficult to implement. Summary of the Invention

[0003] To address the above problems, the present invention provides the following technical solution: A solar thermal collection device includes a frame and a solar photovoltaic panel disposed inside the frame. The solar photovoltaic panel has several first straight grooves arranged horizontally and several second straight grooves arranged vertically. The first straight grooves are equidistantly intersected with the second straight grooves, forming multiple rectangular grids of uniform size on the solar photovoltaic panel. A slide rail is mounted on one side of the frame, and two racks are mounted on the slide rail. A bidirectional electric cylinder is mounted in the middle of the slide rail. One actuating rod of the bidirectional electric cylinder is connected upwards to the bottom end of the upper rack, and the other actuating rod is connected downwards to the top end of the lower rack. The left end of the first straight groove extends to the left side of the frame, and the right end extends to the right side of the frame. A cleaning assembly is mounted on the frame, and the cleaning assembly includes several shafts mounted on the left side of the frame. The cleaning assembly includes several bearings installed on the right side of the frame. Each of the first straight grooves has two bearings at its left and right ends. The cleaning assembly also includes a rotating tube installed in each of the first straight grooves. The left and right ends of each rotating tube are fitted into the left and right bearings. A gear meshing with the rack is installed at the left end of each rotating tube. When the actuating rod of the bidirectional electric cylinder drives the rack to move linearly, the rack drives the gear to rotate, and the gear drives the rotating tube to rotate in the first straight groove. The rotating tube is filled with a first heating wire, and the slide rail is filled with a second heating wire. The cleaning assembly also includes a steel wire located in the second straight groove. The other end of the steel wire passes through the frame and is connected to the rack. When the rack moves linearly, it not only drives the gear to rotate, but also drives the steel wire to drag along the second straight groove.

[0004] As a further preferred embodiment, a bracket is mounted on the back of the frame, and an electrical control box is mounted on the bracket. The electrical control box includes at least a controller, which is electrically connected to the first heating wire and the second heating wire.

[0005] As a further preferred embodiment, the bottom of the frame is provided with an assembly hole, in which a sensor is installed. The sensor is electrically connected to the controller, and the sensor probe enters the second straight groove.

[0006] As a further preferred embodiment, the steel wire passes through the back of the rotating tube, and two steel wires, one upper and one lower, are provided in the same second straight groove. The upper steel wire passes through the top of the frame and connects to the top of the upper rack, and the lower steel wire passes through the bottom of the frame and connects to the bottom of the lower rack. A tension spring is provided in the middle of the same second straight groove, and the two steel wires in the same second straight groove are respectively connected to the upper and lower ends of the tension spring.

[0007] As a further preferred embodiment, both the top end of the upper rack and the bottom end of the lower rack are provided with hinge pins. A swing plate is hinged to each hinge pin, and a torsion spring is sleeved on the hinge pin. One free end of the torsion spring is elastically restrained on the swing plate, and the other free end is elastically restrained on the upper rack. An auxiliary seat corresponding to the upper swing plate is installed on the upper left side of the frame, and an auxiliary seat corresponding to the lower swing plate is installed on the lower left side of the frame. Through holes are provided from the top to the left and from the bottom to the left of the frame. The upper wire passes through the auxiliary seat, with the top end of the upper wire passing through the top end of the second straight groove into the upper through hole, and then passing to the left along the upper through hole to the outside of the auxiliary seat. The bottom end of the lower wire passes through the bottom end of the second straight groove into the lower through hole, and then passes to the left along the lower through hole to the outside of the auxiliary seat. A pull seat is installed on the end of each of the upper and lower wires that passes through the two auxiliary seats. The auxiliary seat has an inclined surface on the end facing the rack, and the end of the rack has a pull groove that is vertically opposite to the pull seat.

[0008] As a further preferred embodiment, the rack has an arc-shaped surface at its end corresponding to the inclined surface, and the pull seat has a chamfer at one end facing the inclined surface, forming a gap between the chamfer and the inclined surface, with the connection position of the steel wire and the pull seat exposed in the gap.

[0009] As a further preferred embodiment, the steel wire is provided with burrs in the section within the second straight groove, with the burrs facing forward.

[0010] As a further preferred embodiment, the electrical control box also includes at least a remote control module and is equipped with a remote control device adapted to the remote control module.

[0011] The advantages of this invention compared to the prior art are: 1. The controller controls the simultaneous movement of the upper and lower actuators of the bidirectional electric cylinder. The upper actuator pushes the upper rack to move upward along the upper half of the slide rail, while the lower actuator pushes the lower rack to move downward along the lower half of the slide rail. Each rack drives several gears to rotate, and these gears drive the rotating tubes to rotate in the first straight groove. Because the slide rail can automatically heat up, it ensures that the racks can move in a straight line. Since the rotating tubes are located in the first straight groove, when these rotating tubes rotate, it is equivalent to causing internal damage to the ice or snow. In addition to being melted by the heat effect, the ice or snow will also have reduced adhesion to the solar photovoltaic panel due to the damage caused by the rotating tubes, thus achieving the purpose of quickly and automatically removing the ice or snow from the solar photovoltaic panel in a short time.

[0012] 2. When the upper rack moves upward and the lower rack moves downward, in addition to using the meshing relationship to rotate the rotating tube and using the rotational force of the rotating tube to create the first type of destructive effect in the first straight groove laterally, as the upper and lower racks move, they also cause the two swing plates to contact the upper and lower auxiliary seats respectively. The swing plates use the curved surface to move along the inclined surface on the auxiliary seat, and the inclined surface creates a squeezing effect on the curved surface, forcing the curved surface to deflect the swing plates to the left as shown in the figure. With the above deflection action of the swing plates, the end with the pull groove enters the gap between the pull seat and the inclined surface and the pull groove is stuck on the steel wire. As the swing plates continue to deflect to the left, they provide a pulling force to the pull seat. The puller is forced to drag the steel wire to the left, causing all the steel wire segments to move within the second straight groove. The steel wire drags the burrs, and the movement of the burrs breaks down the snow or ice still attached to the second straight groove. The second and first straight grooves are rectangular grids distributed longitudinally and laterally on the solar photovoltaic panel. Therefore, when the above-mentioned method produces a destructive effect in both the second and first straight grooves, it is equivalent to creating a destructive effect on the snow or ice within multiple rectangular areas, thereby increasing the cleaning area of ​​the snow or ice and improving the cleaning efficiency. Compared with the prior art, the longitudinal and transverse mechanical cleaning effect of this invention is more effective and reasonable. Attached Figure Description

[0013] Figure 1 A front view schematic diagram of a solar thermal collection device provided for an embodiment of the present invention; Figure 2 A solar thermal collection device provided for embodiments of the present invention comprises... Figure 1 Enlarged schematic diagram of part A; Figure 3 A schematic diagram of a solar thermal collection device from a rear view, provided for an embodiment of the present invention; Figure 4 A solar thermal collection device provided for embodiments of the present invention comprises... Figure 3 Enlarged schematic diagram of section B; Figure 5 A solar thermal collection device provided for embodiments of the present invention comprises... Figure 1 A 3D schematic diagram taken from the front-side perspective; Figure 6 A solar thermal collection device provided for embodiments of the present invention comprises... Figure 5 Enlarged schematic diagram of section C; Figure 7 A schematic diagram illustrating the principle of a solar thermal collection device provided for an embodiment of the present invention, in which a rack carries a pendulum plate in linear motion and the pendulum plate is driven to deflect by an auxiliary seat. Figure 8 A solar thermal collection device provided for embodiments of the present invention comprises... Figure 7An enlarged schematic diagram of part D, which is introduced from the middle.

[0014] In the diagram: 1. Frame; 2. Solar photovoltaic panel; 3. First straight groove; 4. Second straight groove; 5. Rectangular grid; 6. Slide rail; 7. Rack; 8. Bidirectional electric cylinder; 9. Bearing; 10. Rotary tube; 11. Gear; 12. First heating wire; 13. Second heating wire; 14. Steel wire; 15. Bracket; 16. Controller; 17. Sensor; 18. Hinge shaft; 19. Swing plate; 20. Torsion spring; 21. Through hole; 22. Tension spring; 23. Auxiliary seat; 24. Pull seat; 25. Inclined surface; 26. Pull groove; 27. Arc surface; 28. Chamfer; 29. ​​Gap; 30. Burr. Detailed Implementation

[0015] The above and other embodiments and advantages of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0016] In one implementation, such as Figures 1-8As shown: This embodiment provides a solar thermal collection device, including a frame 1 and a solar photovoltaic panel 2 disposed inside the frame 1. The solar photovoltaic panel 2 has several first straight grooves 3 arranged horizontally and several second straight grooves 4 arranged vertically. The first straight grooves 3 are equidistantly intersected with the second straight grooves 4, forming multiple rectangular grids 5 of uniform size on the solar photovoltaic panel 2. A slide rail 6 is installed on one side of the frame 1, and two racks 7 are installed on the slide rail 6. A bidirectional electric cylinder 8 is installed in the middle of the slide rail 6. One actuating rod of the bidirectional electric cylinder 8 is connected upwards to the bottom end of the upper rack 7, and the other actuating rod of the bidirectional electric cylinder 8 is connected downwards to the top end of the lower rack 7. The left end of the first straight groove 3 extends to the left side of the frame 1, and the right end of the first straight groove 3 extends to the right side of the frame 1. A cleaning assembly is installed on the frame 1, including several bearings 9 installed on the left side and several bearings 9 installed on the right side of the frame 1. Each first straight groove 3 has several bearings 9 installed on the left and right sides. The cleaning assembly includes two bearings 9 at each end and a rotating tube 10 installed in each first straight groove 3. The left and right ends of each rotating tube 10 are fitted into the left and right bearings 9. A gear 11 meshing with a rack 7 is installed at the left end of each rotating tube 10. When the action rod of the bidirectional electric cylinder 8 drives the rack 7 to move linearly, the rack 7 drives the gear 11 to rotate, and the gear 11 drives the rotating tube 10 to rotate in the first straight groove 3. The rotating tube 10 is filled with a first heating wire 12, and the slide rail 6 is filled with a second heating wire 13. The cleaning assembly also includes a steel wire 14 located in the second straight groove 4. The other end of the steel wire 14 passes through the frame 1 and is connected to the rack 7. When the rack 7 moves linearly, it not only drives the gear 11 to rotate, but also drives the steel wire 14 to drag along the second straight groove 4. A bracket 15 is installed on the back of the frame 1, and an electrical control box is installed on the bracket 15. The electrical control box includes at least a controller 16, which is electrically connected to the first heating wire 12 and the second heating wire 13.

[0017] Working principle and effect: The solar photovoltaic panel 2 converts absorbed light energy into electrical energy, which is stored in an energy storage box. The electrical control box then distributes the energy, with at least a portion of the power being transmitted to the first heating wire 12 and the second heating wire 13, causing the rotating tube 10 and the slide rail 6 to heat up. If ice or snow accumulates on the solar photovoltaic panel 2, the rotating tube 10 transfers heat to the ice or snow, rapidly melting it. The water generated in the second straight groove 4 as the snow melts is detected by the sensor 17 (rain sensor), which feeds this signal back to the controller 16. The controller 16 then controls the upper and lower levers of the bidirectional electric cylinder 8 to move simultaneously, with the upper lever pushing the upper lever... The rack 7 moves upward along the upper half of the slide rail 6, and the lower rack 7 is pushed downward along the lower half of the slide rail 6 by the lower actuating rod. The two racks 7 rotate with several gears 11, and these gears 11 rotate the rotating tubes 10 in the first straight groove 3. Since the slide rail 6 can automatically heat up, it ensures that the rack 7 can move in a straight line. Since the rotating tubes 10 are located in the first straight groove 3, when these rotating tubes 10 rotate, it is equivalent to causing internal damage to the ice or snow. In addition to being melted by the heat effect, the ice or snow will also have reduced adhesion to the solar photovoltaic panel 2 due to the damage caused by the rotating tubes 10, so as to achieve the purpose of quickly and automatically cleaning the ice or snow from the solar photovoltaic panel 2 in a short time.

[0018] In addition, such as Figures 2 to 8As shown, two steel wires 14 are threaded through each second straight groove 4, connected together by a tension spring 22. The upper steel wire 14 passes through the top of the frame 1 and connects to the top of the upper rack 7, while the lower steel wire 14 passes through the bottom of the frame 1 and connects to the bottom of the lower rack 7. Both the top and bottom of the upper and lower rack 7 are equipped with hinge pins 18, with a swing plate 19 hinged to each hinge pin 18. A torsion spring 20 is fitted onto the hinge pin 18, with one free end of the torsion spring 20 elastically restrained on the swing plate 19 and the other free end of the torsion spring 20 elastically restrained on the upper rack 7. An auxiliary seat 23 corresponding to the upper swing plate 19 is installed on the upper left side of the frame 1, and a corresponding auxiliary seat 23 is installed on the lower left side of the frame 1. The auxiliary seat 23 below the lower plate 19 has through holes 21 extending from the top left of the frame 1 and from the bottom left of the frame 1. The through holes 21 pass through the auxiliary seat 23. The top end of the upper steel wire 14 passes through the top end of the second straight groove 4 into the upper through hole 21 and then extends to the left along the upper through hole 21 to the outside of the auxiliary seat 23. The bottom end of the lower steel wire 14 passes through the bottom end of the second straight groove 4 into the lower through hole 21 and then extends to the left along the lower through hole 21 to the outside of the auxiliary seat 23. A pull seat 24 is installed on the end of the upper and lower steel wires 14 that extends to the outside of the two auxiliary seats 23. The end of the auxiliary seat 23 facing the rack 7 has an inclined surface 25. The end of the rack 7 has a pull groove 26 that is vertically opposite to the pull seat 24. The rack 7 has an arc-shaped surface 27 at its end corresponding to the inclined surface 25. The pull seat 24 has a chamfer 28 on the end facing the inclined surface 25, forming a gap 29 between the chamfer 28 and the inclined surface 25. The connection between the steel wire 14 and the pull seat 24 is exposed in the gap 29. The section of the steel wire 14 located in the second straight groove 4 has burrs 30 facing forward.

[0019] When the upper rack 7 moves upward and the lower rack 7 moves downward, in addition to using the meshing relationship to rotate the rotating tube 10 and using the rotational force of the rotating tube 10 to create the first type of destructive effect in the first straight groove 3 laterally, as the upper and lower racks 7 move, they also cause the two swing plates 19 to contact the upper and lower auxiliary seats 23 respectively. The swing plates 19 use the arc-shaped surface 27 to move along the inclined surface 25 on the auxiliary seat 23, and use the inclined surface 25 to create a squeezing effect on the arc-shaped surface 27, forcing the arc-shaped surface 27 to press the swing plates 19. Figure 8As shown, the pendulum 19 deflects to the left, causing the end with the groove 26 to enter the gap 29 between the pull seat 24 and the inclined surface 25, and the groove 26 to be stuck on the steel wire 14. As the pendulum 19 continues to deflect to the left, it provides a pulling force to the pull seat 24, forcing the pull seat 24 to drag the steel wire 14 to the left, causing all the steel wire 14 segments to move within the second straight groove 4. The steel wire 14 drags the burr 30, and the movement of the burr 30 breaks the snow or ice layer still attached to the second straight groove 4. The second straight groove 4 and the first straight groove 3 are rectangular grids 5 distributed longitudinally and laterally on the solar photovoltaic panel 2. Therefore, when the second straight groove 4 and the first straight groove 3 produce a breaking effect in the above manner, it is equivalent to making the snow or ice layer form a breaking effect in multiple rectangular areas, thereby increasing the cleaning area of ​​the snow or ice layer and thus improving the cleaning efficiency. Compared with the prior art, the longitudinal and transverse mechanical cleaning effect of this invention is more effective and reasonable.

[0020] It should be further explained that the dragging stroke of the steel wire 14 is affected by the swing amplitude of the swing plate 19. The stroke of the bidirectional electric cylinder 8 is not large, so the movement stroke of the rack 7 is not very large. Therefore, the swing amplitude of the swing plate 19 is not very large. The movement stroke of the rack 7 only needs to be sufficient to rotate the rotating tube 10 through the gear 11 to provide a destructive effect on the ice or snow. The dragging stroke of the steel wire 14 only needs to be sufficient to provide a destructive effect on the ice or snow with the burr 30.

[0021] In addition, during actual assembly, a remote control module can be optionally installed in the electrical control box, along with a remote control device compatible with the module. The bidirectional electric cylinder 8 can perform the aforementioned actions remotely based on weather conditions and the actual adhesion of snow or ice on the solar photovoltaic panel 2.

[0022] The above orientation references do not represent the specific orientations of each component in this implementation scheme. This implementation scheme is only for the convenience of describing the scheme and to make relative descriptions based on the orientations of the references. In reality, the specific orientations of each component are based on their actual installation and use, as well as the orientation descriptions that are customary to those skilled in the art. This is hereby stated.

[0023] The specific embodiments described above further illustrate the inventive purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. In particular, it should be noted that any modifications, equivalent substitutions, or improvements made by those skilled in the art within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A solar thermal collection device, characterized in that, The system includes a frame (1) and a solar photovoltaic panel (2) disposed inside the frame (1). The solar photovoltaic panel (2) has several first straight grooves (3) arranged horizontally and several second straight grooves (4) arranged vertically. The first straight grooves (3) are equidistantly intersected with the second straight grooves (4), forming multiple rectangular grids (5) of uniform size on the solar photovoltaic panel (2). A slide rail (6) is installed on one side of the frame (1), and two toothed racks (7) are installed on the slide rail (6). A double toothed rack is installed in the middle of the slide rail (6). The bidirectional electric cylinder (8) has one actuating rod connected upward to the bottom end of the upper rack (7), and the other actuating rod connected downward to the top end of the lower rack (7). The left end of the first straight groove (3) extends to the left side of the frame (1), and the right end of the first straight groove (3) extends to the right side of the frame (1). A cleaning assembly is installed on the frame (1), which includes several bearings (9) installed on the left side of the frame (1) and several bearings (9) installed on the right side of the frame (1).

2. The solar thermal collection device according to claim 1, characterized in that, Each of the first straight grooves (3) has two bearings (9) at its left and right ends. The cleaning assembly also includes a rotating tube (10) installed in each of the first straight grooves (3). The left and right ends of each rotating tube (10) are fitted into the left and right bearings (9). A gear (11) meshing with the rack (7) is installed at the left end of each rotating tube (10). When the action rod of the bidirectional electric cylinder (8) drives the rack (7) to move linearly, the rack (7) drives the gear (11) to rotate, and the gear (11) drives the rotating tube (10) to rotate in the first straight groove (3). The rotating tube (10) is filled with a first heating wire. 12), the slide rail (6) is filled with a second heating wire (13), the cleaning assembly also includes a steel wire (14) located in the second straight groove (4), the other end of the steel wire (14) passes through the frame (1) and is connected to the rack (7). When the rack (7) moves in a straight line, it not only drives the gear (11) to rotate, but also drives the steel wire (14) to drag along the second straight groove (4). A bracket (15) is installed on the back of the frame (1), and an electrical control box is installed on the bracket (15). The electrical control box includes at least a controller (16), and the controller (16) is electrically connected to the first heating wire (12) and the second heating wire (13).

3. The solar thermal collection device according to claim 2, characterized in that, The bottom of the frame (1) is provided with an assembly hole, and a sensor (17) is installed in the assembly hole. The sensor (17) is electrically connected to the controller (16), and the probe of the sensor (17) enters the second straight groove (4).

4. The solar thermal collection device according to claim 3, characterized in that, The steel wire (14) passes through the back of the rotating tube (10). There are two steel wires (14) in the same second straight groove (4). The upper steel wire (14) passes through the top of the frame (1) and is connected to the top of the upper rack (7). The lower steel wire (14) passes through the bottom of the frame (1) and is connected to the bottom of the lower rack (7). A tension spring (22) is provided in the middle of the same second straight groove (4). The upper and lower steel wires (14) in the same second straight groove (4) are respectively connected to the upper and lower ends of the tension spring (22).

5. The solar thermal collection device according to claim 4, characterized in that, The top end of the upper rack (7) and the bottom end of the lower rack (7) are both provided with hinge pins (18). A swing plate (19) is hinged to the hinge pin (18). A torsion spring (20) is sleeved on the hinge pin (18). One free end of the torsion spring (20) is elastically restricted to the swing plate (19), and the other free end of the torsion spring (20) is elastically restricted to the upper rack (7). An auxiliary seat (23) corresponding to the upper swing plate (19) is installed on the upper left side of the frame (1), and an auxiliary seat (23) corresponding to the lower swing plate (19) is installed on the lower left side of the frame (1). Through holes (21) are opened from the upper left side of the frame (1) and from the lower left side of the frame (1). The through holes (21) pass through the rack (7). The auxiliary seat (23) has the top end of the upper steel wire (14) passing through the top end of the second straight groove (4) into the upper through hole (21), and passing to the left along the upper through hole (21) to the outside of the auxiliary seat (23). The bottom end of the lower steel wire (14) passes through the bottom end of the second straight groove (4) into the lower through hole (21), and passes to the left along the lower through hole (21) to the outside of the auxiliary seat (23). A pull seat (24) is installed on the end of the upper and lower steel wires (14) that passes through the two auxiliary seats (23). The auxiliary seat (23) has an inclined surface (25) facing the rack (7). The end of the rack (7) has a pull groove (26) that is vertically opposite to the pull seat (24).

6. The solar thermal collection device according to claim 5, characterized in that, The rack (7) has an arc-shaped surface (27) at its end that corresponds to the inclined surface (25). The pull seat (24) has a chamfer (28) at one end facing the inclined surface (25). A gap (29) is formed between the chamfer (28) and the inclined surface (25). The connection position between the steel wire (14) and the pull seat (24) is exposed in the gap (29).

7. The solar thermal collection device according to claim 6, characterized in that, The steel wire (14) is provided with burrs (30) in the section within the second straight groove (4), with the burrs (30) facing forward.

8. The solar thermal collection device according to claim 7, characterized in that, The electrical control box also includes at least a remote control module and is equipped with a remote control device adapted to the remote control module.

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