An automatic snow melting and cleaning system and device for photovoltaic panels

Abstract

The application discloses a kind of photovoltaic panel automatic snow melting cleaning system and device, including multiple heating bands installed in the bottom of photovoltaic panel main body and snow thickness sensor and temperature sensor installed in the top of photovoltaic panel main body, the bottom of the photovoltaic panel main body is provided with the portable mounting mechanism corresponding to heating band;The portable mounting mechanism includes strip-shaped base plate, pressing strip, first base and second base, the first base and the second base are fixed symmetrically at the bottom of photovoltaic panel main body;Through the portable mounting mechanism set, the installation convenience and installation stability of heating band can be greatly improved, the overall installation efficiency is improved, and subsequent operators are also facilitated to disassemble and replace the heating band, solve the problem of complicated disassembly in the prior art, ensure the maintenance convenience of the automatic snow melting cleaning device in later period, so as to ensure the stable operation of the entire photovoltaic panel automatic snow melting cleaning system.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic panel snow melting and cleaning technology, specifically relating to an automatic photovoltaic panel snow melting and cleaning system and device. Background Technology

[0002] Photovoltaic panels refer to solar panels, which are power generation devices that produce direct current under sunlight. On snowy days, snow easily accumulates on photovoltaic panels and needs to be cleared, otherwise it will affect the normal contact between the photovoltaic panels and sunlight. Chinese invention patent application number CN109818565B discloses "an automatic snow removal device for photovoltaic panels, including a heating device, a controller, a snow thickness sensor and a temperature sensor, wherein the heating device includes a photovoltaic panel and a heating belt, and the snow thickness sensor is set in the vertical direction of the photovoltaic panel..." The above-mentioned automatic snow removal device for photovoltaic panels is actually an automatic snow melting and cleaning system composed of components such as heating belts, controllers, and sensors. The heating belt is the core device of the entire automatic snow melting and cleaning system, and it is the device that melts and cleans the snow on the photovoltaic panels.

[0003] The heating tapes in the prior art are generally installed directly on the bottom of the photovoltaic panel using fasteners such as bolts. However, this installation method has problems such as low installation efficiency and difficulty in subsequent disassembly, maintenance and replacement. Inspired by the prior art, the applicant has proposed a new solution to address the shortcomings of the heating tape installation method being cumbersome and inconvenient to replace. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic snow melting and cleaning system and device for photovoltaic panels, so as to solve the problems of cumbersome installation and inconvenient replacement of heating belts mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic snow melting and cleaning device for photovoltaic panels, comprising multiple heating belts installed at the bottom of the photovoltaic panel body and a snow thickness sensor and a temperature sensor installed at the top of the photovoltaic panel body, wherein a convenient installation mechanism corresponding to the heating belts is provided at the bottom of the photovoltaic panel body;

[0006] The convenient installation mechanism includes a strip substrate, a pressure strip, a first base, and a second base. The first base and the second base are symmetrically fixed to the bottom of the photovoltaic panel body. A movable component is provided between the left end of the strip substrate and the first base. A limiting component is provided between the right end of the strip substrate and the second base. The pressure strip is fixed to the top of the strip substrate, and multiple rectangular slots are provided on the pressure strip to limit the heating band.

[0007] Preferably, the movable component includes a cylindrical movable groove formed inside the first base, a circular movable plate slidably disposed in the cylindrical movable groove, a cylindrical block fixed to the bottom of the circular movable plate, and the bottom end of the cylindrical block extending through to the bottom of the first base and fixed to the strip base plate.

[0008] Preferably, the limiting component includes a U-shaped limiting sleeve movably disposed on the bottom surface of the second base, and the right end of the strip substrate is inserted into the inner side of the U-shaped limiting sleeve, and a spring-loaded structure is provided between the U-shaped limiting sleeve and the second base.

[0009] Preferably, the rebound structure includes two rectangular grooves formed inside the second base, and a rectangular slider is slidably disposed inside the rectangular groove. The bottom inner wall of the rectangular groove is provided with a connecting slide that communicates with the bottom surface of the second base. The U-shaped limiting sleeve is U-shaped in side view, and connecting blocks are fixed at the top of both ends of the U-shaped limiting sleeve. The connecting blocks pass through the connecting slide into the rectangular groove and are fixed to the rectangular slider.

[0010] Preferably, a side groove is formed on one inner wall of the rectangular slide, and a reset spring is installed in the side groove, with the other end of the reset spring fixed to the rectangular slider.

[0011] Preferably, the limiting component further includes an auxiliary structure, and the auxiliary structure is disposed between the strip substrate and the second base.

[0012] Preferably, the auxiliary structure includes a rubber pad embedded and fixed on the top surface of the right end of the strip substrate. The top of the rubber pad is provided with an integral circular protrusion, and the bottom surface of the second base is provided with a circular slot corresponding to the circular protrusion. The circular protrusion is embedded into the circular slot.

[0013] An automatic snow melting and cleaning system for photovoltaic panels includes an automatic snow melting and cleaning device for photovoltaic panels; as well as a battery, a controller, and an inverter. The heating belt, snow thickness sensor, and temperature sensor are all connected to the battery. The controller is connected between the battery and the inverter, and the inverter is connected to an external power system.

[0014] Compared with the prior art, the beneficial effects of the present invention are: by setting a convenient installation mechanism, the installation convenience and stability of the heating belt can be greatly improved, the overall installation efficiency can be improved, and it is also convenient for subsequent operators to disassemble and replace the heating belt, solving the problem of cumbersome disassembly and assembly in the prior art, ensuring the convenience of later maintenance of the automatic snow melting and cleaning device, thereby ensuring the stable operation of the entire photovoltaic panel automatic snow melting and cleaning system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a cross-sectional view of the convenient installation mechanism of the present invention;

[0017] Figure 3 For the present invention Figure 2 A magnified view of a portion of the active component;

[0018] Figure 4 For the present invention Figure 2 A magnified view of the middle limit component;

[0019] Figure 5 This is a cross-sectional view of the springback structure of the present invention;

[0020] In the diagram: 1. Photovoltaic panel body; 2. Heating strip; 3. Snow thickness sensor; 4. Temperature sensor; 5. Battery; 6. Controller; 7. Inverter; 8. Convenient installation mechanism; 81. Strip substrate; 82. Pressure strip; 83. First base; 84. Second base; 85. Movable component; 851. Cylindrical movable groove; 852. Circular movable plate; 853. Cylindrical block; 86. Limiting component; 861. U-shaped limiting sleeve; 862. Auxiliary structure; 8621. Rubber pad; 8622. Circular protrusion; 8623. Circular slot; 863. Rebound structure; 8631. Rectangular slide; 8632. Rectangular slider; 8633. Connecting block; 8634. Connecting slide; 8635. Side groove; 8636. Reset spring. Detailed Implementation

[0021] The technical solutions of the embodiments 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1

[0023] Please see Figure 1 This is the first embodiment of the present invention, which provides a technical solution: an automatic snow melting and cleaning device for photovoltaic panels, including multiple heating belts 2 installed at the bottom of the photovoltaic panel body 1 and a snow thickness sensor 3 and a temperature sensor 4 installed at the top of the photovoltaic panel body 1. When the heating belts 2 are powered on, they can heat the photovoltaic panel body 1, causing the snow on the top of the photovoltaic panel body 1 to melt, thereby achieving the purpose of self-cleaning. The snow thickness sensor 3 and the temperature sensor 4 are used to sense the snow thickness and the temperature at the top of the photovoltaic panel body 1.

[0024] An automatic snow melting and cleaning system for photovoltaic panels includes an automatic snow melting and cleaning device for photovoltaic panels; as well as a battery 5, a controller 6, and an inverter 7. A heating belt 2, a snow thickness sensor 3, and a temperature sensor 4 are all connected to the battery 5 to supply power to these devices. The photovoltaic panel body 1 itself is also connected to the battery 5, enabling the photovoltaic panel body 1 to transmit the converted electrical energy to the battery 5. The controller 6 is connected between the battery 5 and the inverter 7 to control the power supply and de-energization of the heating belt 2. The inverter 7 is connected to an external power system, allowing the photovoltaic panel body 1 to transmit the converted electrical energy to the external power system.

[0025] In summary, when snow accumulates on the photovoltaic panel body 1, the snow thickness sensor 3 senses the snow thickness. When the set thickness is reached, the controller 6 starts the inverter 7 to supply power to the heating belt 2, causing the heating belt 2 to operate and heat the photovoltaic panel body 1. This allows the snow on the photovoltaic panel body 1 to gradually melt, achieving the purpose of self-cleaning. After the snow melts, the snow thickness sensor 3 will also sense it in time and cause the heating belt 2 to be de-energized to prevent overheating.

[0026] Example 2

[0027] Please see Figures 1 to 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the heating belt 2 can be quickly and stably installed through the convenient installation mechanism 8, which also facilitates subsequent disassembly, maintenance and replacement.

[0028] Specifically, a convenient installation mechanism 8 corresponding to the heating strip 2 is provided at the bottom of the photovoltaic panel body 1. The convenient installation mechanism 8 includes a strip substrate 81, a pressure strip 82, a first base 83, and a second base 84. The first base 83 and the second base 84 are symmetrically fixed at the bottom of the photovoltaic panel body 1. A movable component 85 is provided between the left end of the strip substrate 81 and the first base 83, and a limiting component 86 is provided between the right end of the strip substrate 81 and the second base 84. The pressure strip 82 is fixed to the top of the strip substrate 81, and the pressure strip... The heating band 2 is provided with multiple rectangular slots on the 82 to limit its position and ensure its installation stability. The movable component 85 includes a cylindrical movable groove 851 opened inside the first base 83. A circular movable plate 852 is slidably disposed in the cylindrical movable groove 851. A cylindrical block 853 is fixed to the bottom of the circular movable plate 852. The bottom end of the cylindrical block 853 extends through to the bottom of the first base 83 and is fixed to the strip base plate 81, so that the strip base plate 81 can slide up and down and can rotate after sliding down.

[0029] The limiting component 86 includes a U-shaped limiting sleeve 861 movably disposed on the bottom surface of the second base 84, and the right end of the strip substrate 81 is inserted into the inner side of the U-shaped limiting sleeve 861 to achieve stable limiting of the strip substrate 81. A spring-loaded structure 863 is provided between the U-shaped limiting sleeve 861 and the second base 84.

[0030] The spring-loaded structure 863 includes two rectangular grooves 8631 formed inside the second base 84. A rectangular slider 8632 is slidably arranged inside the rectangular grooves 8631. A connecting slide 8634 communicating with the bottom surface of the second base 84 is formed on the inner wall of the bottom end of the rectangular grooves 8631. The U-shaped limiting sleeve 861 is U-shaped in side view, and connecting blocks 8633 are fixed at the top of both ends of the U-shaped limiting sleeve 861. The connecting blocks 8633 pass through the connecting slide 8634 into the rectangular grooves 8631 and are fixed to the rectangular sliders 8632, so that the U-shaped limiting sleeve 861 can slide left and right. A side groove 8635 is formed on one side inner wall of the rectangular grooves 8631, and a reset spring 8636 is installed in the side groove 8635. The other end of the reset spring 8636 is fixed to the rectangular slider 8632, so that the U-shaped limiting sleeve 861 can spring back to its original position after sliding sideways.

[0031] In summary, when the heating band 2 needs to be installed at the bottom of the photovoltaic panel body 1, simply move the U-shaped limiting sleeve 861 to the side so that it no longer limits the pressure strip 82. Then, move the pressure strip 82 down, causing the circular movable plate 852 to move down. Next, rotate the strip substrate 81 along with the pressure strip 82 to the side. At this point, multiple heating bands 2 are attached to the bottom surface of the photovoltaic panel body 1. Then, rotate the strip substrate 81 back so that the pressure strip 82 is located at the bottom of the heating band 2. At this point, move the U-shaped limiting sleeve 861 to the side and rotate the strip substrate 852 along with the pressure strip 852 to the side. Pushing the base plate 81 upwards causes the pressure strip 82 to move upwards, pressing and limiting the heating band 2. At this time, the U-shaped limiting sleeve 861 is released, causing the reset spring 8636 to pull back the rectangular slider 8632, causing the U-shaped limiting sleeve 861 to spring back and reset, fitting onto the right end of the pressure strip 82. This provides a stable limiting effect on the pressure strip 82, ensuring the installation stability of the heating band 2. This significantly improves the ease and stability of installing the heating band 2, increases the overall installation efficiency, and also facilitates the subsequent disassembly and replacement of the heating band 2 by operators.

[0032] Example 3

[0033] Please see Figures 1 to 5 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that the auxiliary structure 862 can prevent the strip substrate 81 from rotating after being pushed up.

[0034] Specifically, the limiting component 86 also includes an auxiliary structure 862, which is disposed between the strip substrate 81 and the second base 84. The auxiliary structure 862 includes a rubber pad 8621 embedded and fixed on the top right end of the strip substrate 81. The top of the rubber pad 8621 is provided with an integral circular protrusion 8622. The bottom surface of the second base 84 is provided with a circular slot 8623 corresponding to the circular protrusion 8622. The circular protrusion 8622 is embedded into the circular slot 8623, which can be pushed back on the strip substrate 81 to prevent it from being accidentally rotated.

[0035] In summary, when the strip substrate 81 is pushed up to the bottom surface of the second base 84, the circular protrusion 8622 will also be engaged in the circular slot 8623 to prevent the strip substrate 81 from rotating after being pushed up, which facilitates the smooth reset of the U-shaped limiting sleeve 861 and improves the ease of operation of the convenient installation mechanism 8.

[0036] In this invention, the heating belt 2 is model DXW-10;

[0037] In this invention, the snow thickness sensor 3 is model Veinasa XS-XH;

[0038] In this invention, the temperature sensor 4 is model PT100.

[0039] Although embodiments of the invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic snow melting and cleaning device for photovoltaic panels, comprising multiple heating belts (2) installed at the bottom of a photovoltaic panel body (1) and a snow thickness sensor (3) and a temperature sensor (4) installed at the top of the photovoltaic panel body (1), characterized in that: The bottom of the photovoltaic panel body (1) is provided with a convenient installation mechanism (8) corresponding to the heating belt (2); The convenient installation mechanism (8) includes a strip substrate (81), a pressure strip (82), a first base (83) and a second base (84). The first base (83) and the second base (84) are symmetrically fixed at the bottom of the photovoltaic panel body (1). A movable component (85) is provided between the left end of the strip substrate (81) and the first base (83). A limiting component (86) is provided between the right end of the strip substrate (81) and the second base (84). The pressure strip (82) is fixed at the top of the strip substrate (81), and multiple rectangular slots are provided on the pressure strip (82) to limit the heating band (2). The movable component (85) includes a cylindrical movable groove (851) opened inside the first base (83), a circular movable plate (852) is slidably disposed in the cylindrical movable groove (851), a cylindrical block (853) is fixed at the bottom of the circular movable plate (852), and the bottom end of the cylindrical block (853) extends through to the bottom of the first base (83) and is fixed to the strip base plate (81); The limiting component (86) includes a U-shaped limiting sleeve (861) movably disposed on the bottom surface of the second base (84), and the right end of the strip base plate (81) is inserted into the inner side of the U-shaped limiting sleeve (861). A spring-loaded structure (863) is provided between the U-shaped limiting sleeve (861) and the second base (84). The limiting component (86) further includes an auxiliary structure (862), and the auxiliary structure (862) is disposed between the strip substrate (81) and the second base (84); The auxiliary structure (862) includes a rubber pad (8621) embedded and fixed on the top right end of the strip substrate (81). The top of the rubber pad (8621) is provided with an integral circular protrusion (8622). The bottom surface of the second base (84) is provided with a circular slot (8623) corresponding to the circular protrusion (8622). The circular protrusion (8622) is embedded into the circular slot (8623).

2. The automatic snow melting and cleaning device for photovoltaic panels according to claim 1, characterized in that: The spring-loaded structure (863) includes two rectangular slide grooves (8631) opened inside the second base (84). A rectangular slider (8632) is slidably arranged inside the rectangular slide groove (8631). A connecting slide (8634) communicating with the bottom surface of the second base (84) is opened on the inner wall of the bottom end of the rectangular slide groove (8631). The U-shaped limiting sleeve (861) is U-shaped in side view. A connecting block (8633) is fixed at the top of both ends of the U-shaped limiting sleeve (861). The connecting block (8633) passes through the connecting slide (8634) into the rectangular slide groove (8631) and is fixed to the rectangular slider (8632).

3. The automatic snow melting and cleaning device for photovoltaic panels according to claim 2, characterized in that: The inner wall of one side of the rectangular slide (8631) is provided with a side groove (8635), and a reset spring (8636) is installed in the side groove (8635). The other end of the reset spring (8636) is fixed to the rectangular slider (8632).

4. An automatic snow melting and cleaning system for photovoltaic panels, characterized in that: The device includes an automatic snow melting and cleaning device for photovoltaic panels as described in any one of claims 1-3; and a battery (5), a controller (6) and an inverter (7), wherein the heating belt (2), the snow thickness sensor (3) and the temperature sensor (4) are all connected to the battery (5), the controller (6) is connected between the battery (5) and the inverter (7), and the inverter (7) is connected to an external power system.

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