Photovoltaic system suitable for plateau area

Abstract

The invention discloses a photovoltaic system suitable for a plateau area, and relates to the technical field of photovoltaic power generation systems. Comprising a plurality of photovoltaic frame bodies, the photovoltaic frame bodies are distributed along a straight line, each photovoltaic frame body comprises a first support and a photovoltaic panel, the photovoltaic panels are obliquely arranged on the first supports, and every two adjacent photovoltaic frame bodies are arranged; the scraping mechanism is installed on the photovoltaic panel, and the scraping mechanism can move in a reciprocating mode in the inclination direction of the photovoltaic panel and is used for removing accumulated snow left on the surface of the photovoltaic panel; the driving mechanism is mounted between two adjacent groups of photovoltaic frame bodies, and when the scraping mechanisms move from bottom to top, accumulated snow on the surfaces of the photovoltaic panels of the previous group can be pushed into the driving mechanism so as to drive the driving mechanism to operate and control the scraping mechanisms on the photovoltaic panels of the next group to be started; and the heating mechanism is mounted on the driving mechanism and is used for heating the driving mechanism. According to the invention, the problem of high cleaning difficulty caused by many photovoltaic panels in the photovoltaic system can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation systems, and particularly to a photovoltaic system applicable to plateau areas. Background Art

[0002] At present, photovoltaic panels in plateau areas generally refer to solar photovoltaic power generation panels installed and used in areas with high altitudes and special climatic conditions. Due to factors such as thin air, generally strong light intensity, more ultraviolet radiation, large temperature differences, and high wind speeds in plateau areas, special requirements are put forward for the materials, structures, and installations of photovoltaic panels.

[0003] In related technologies, for plateau areas with more snow accumulation, measures to prevent long-term snow cover on photovoltaic panels should be considered. Usually, a certain inclination angle design is adopted to facilitate the automatic sliding of snow.

[0004] Through practice, the applicant found that in most cases, after the photovoltaic panels are placed obliquely, the snow cannot effectively slide off automatically, and the snow still accumulates on the inclined photovoltaic panels, and still requires on-site cleaning by staff. Moreover, there are many photovoltaic panels in the photovoltaic system, resulting in great difficulty in snow cleaning. Summary of the Invention

[0005] In order to improve the problem of great difficulty in snow cleaning caused by a large number of photovoltaic panels in the photovoltaic system, the present application provides a photovoltaic system applicable to plateau areas.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention provides a photovoltaic power generation system device, including: a photovoltaic frame body, which is distributed in multiple groups along a straight line, and the photovoltaic frame body includes a first support and a photovoltaic panel. The photovoltaic panel is inclinedly arranged on the first support, and in adjacent two groups of photovoltaic frame bodies, the highest end of the inclination of the photovoltaic panel in the previous group is directly above the lowest end of the inclination of the photovoltaic panel in the next group; a scraping mechanism, which is installed on the photovoltaic panel, and the scraping mechanism can reciprocate along the inclined direction of the photovoltaic panel for removing the snow remaining on the surface of the photovoltaic panel; a driving mechanism, which is installed between adjacent two groups of photovoltaic frame bodies, and when the scraping mechanism moves from bottom to top, the snow on the surface of the photovoltaic panel in the previous group can be pushed into the driving mechanism to drive the driving mechanism to operate and control the scraping mechanism on the photovoltaic panel in the next group to start; a heating mechanism, which is installed on the driving mechanism for heating the driving mechanism so that the snow entering the driving mechanism is heated and melted into water and discharged from the driving mechanism.

[0008] In an alternative embodiment of the present application, the driving mechanism includes a second bracket, a loading component, and a starting component; the loading component is vertically slidably arranged on the second bracket, the starting component is installed on the second bracket and is located directly below the loading component, and after the loading component is filled with snow, it is driven by the gravity of the snow to move vertically downward and fit with the starting component, so as to drive the scraping mechanism on the adjacent photovoltaic frame to operate.

[0009] In an alternative embodiment of the present application, the loading component includes a loading box, an extension plate, a spring, and a baffle; wherein, the interior of the loading box is hollow and the upper end is open, the extension plate is vertically arranged at the top edge of one side of the loading box far from the highest inclined end of the photovoltaic panel, the baffle is inclinedly arranged at the top of the extension plate, and the baffle is used to block the upper opening of the loading box, and the lowest inclined end of the baffle is inclined with the highest inclined end of the photovoltaic panel to form an entrance for snow to enter the loading box from the photovoltaic panel; the second bracket has a plurality of vertical and parallel rod bodies, and the loading box is provided with sliding holes for the rod bodies to pass through and slide; the spring is sleeved on the rod body, the second bracket also has a bottom plate, the bottom end of the spring abuts against the bottom plate, and the top end abuts against the bottom of the loading box. When the spring is in a natural state and the loading box is not filled with snow, the loading box is separated from the bottom plate in the vertical direction.

[0010] In an alternative embodiment of the present application, the starting component includes a first storage battery and a first conductive plate, the first storage battery is installed on the bottom plate, the upper surface of the first storage battery is provided with a second conductive plate, the first conductive plate is arranged at the bottom of the loading box, the second conductive plate is electrically connected to the scraping mechanism on the adjacent rear set of photovoltaic frames, and the first conductive plate is electrically connected to the first storage battery; when the loading box is filled with snow and moves vertically downward so that the first conductive plate fits with the second conductive plate, the scraping mechanism on the adjacent rear set of photovoltaic frames is electrically connected to the first storage battery.

[0011] In an alternative embodiment of the present application, the heating mechanism includes a heat conduction component and a pushing component, the heat conduction component is vertically movably arranged in the loading box, the pushing component is installed on the first storage battery, and when the loading box is filled with snow and moves vertically downward, the heat conduction component moves vertically downward close to the pushing component, so that the heat conduction component moves vertically upward to the upper inner side of the loading box close to the upper opening.

[0012] In an alternative embodiment of the present application, the heat conduction component includes an electrically connected third conductive plate and an electric heating rod. A plurality of hollow parts are arranged in parallel on the inner bottom wall of the loading box. A communicating strip hole is vertically penetrated through the inner bottom wall of the loading box. The hollow parts are vertically communicated with and aligned with the communicating strip hole. The third conductive plate is vertically slidably arranged in the hollow part. A plurality of electric heating rods are vertically distributed along the length direction of the third conductive plate. And a plurality of through holes for the electric heating rods to pass through are provided on the top wall of the hollow part. The plurality of through holes are vertically corresponding to the electric heating rods one by one.

[0013] In an alternative embodiment of the present application, the pushing component includes a pushing plate and a fourth conductive plate. A plurality of pushing plates are provided on the top of the first battery, and the plurality of pushing plates are vertically corresponding to the communicating strip holes one by one. The fourth conductive plate is arranged on the top of the pushing plate, and the fourth conductive plate is electrically connected to the first battery; the fourth conductive plate is vertically aligned with the third conductive plate. When the loading box is filled with snow and moves vertically downward, the third conductive plate is attached to the fourth conductive plate, and the fourth conductive plate pushes the third conductive plate to move vertically upward so that the electric heating rod extends out of the through hole.

[0014] In an alternative embodiment of the present application, a discharging mechanism is further provided on the loading box. The discharging mechanism is used for automatically discharging the water in the loading box; the discharging mechanism includes a pumping component and a floating starting component which are electrically connected. The floating opening and closing component can drive the pumping component to open and close as the water level in the loading box rises and falls; wherein, when the water level in the loading box rises to the first position, the floating opening and closing component drives the pumping component to open and discharge the water in the loading box. When the water level in the loading box drops to the second position, the floating opening and closing component closes and synchronously closes the pumping component.

[0015] In an optional embodiment of the present application, the pumping component includes a drain pipe and an electric valve. The electric valve is opened and closed on the drain pipe. Both the drain pipe and the inner bottom wall of the loading box are inclined, and the highest end of the drain pipe is communicated with the lowest end of the loading box. The floating opening and closing component includes a second battery, a first conductive sheet, a second conductive sheet, a positioning rope body and a float. The second battery is arranged on the outer side wall of the loading box. A vertical channel is vertically opened in the side wall of the loading box. The lowermost end of the vertical channel is communicated with the inside of the drain pipe and the loading box. The float can move vertically in the vertical channel as the water level rises and falls. The first conductive sheet is connected to the top of the float through the positioning rope body, and the first conductive sheet is electrically connected to the electric valve through a wire. The second conductive sheet is arranged on the inner top wall of the vertical channel and is vertically opposite to the first conductive sheet. The second conductive sheet is electrically connected to the second battery. Magnets are arranged on the wall surfaces of the first conductive sheet and the second conductive sheet that are opposite to each other. When the water level in the loading box is at the first position, the float drives the first conductive sheet to be magnetically attached to the second conductive sheet. During the process that the water level in the loading box gradually decreases from the first position to the second position, the positioning rope body is gradually straightened, and at this time, the first conductive sheet and the second conductive sheet are always magnetically attached. When the water level in the loading box is at the second position, the float is located at the bottom of the vertical channel and cuts off the communication path between the drain pipe and the inside of the loading box, and the first conductive sheet is separated from the second conductive sheet under the action of the positioning rope body and the float. The gravity of the float is greater than the magnetic attraction force between the magnets, so that when the float returns to the bottom of the vertical channel as the water level drops, the float pulls the first conductive sheet away from the second conductive sheet by its own gravity.

[0016] In an optional embodiment of the present application, the scraping mechanism includes a rodless electric cylinder and a scraper. The length direction of the scraper is the same as the width direction of the photovoltaic panel. The length of the scraper is longer than the width of the photovoltaic panel, and a connecting rod is arranged at the bottom of the scraper on one side of the photovoltaic panel. The connecting rod is detachably connected to the moving piston of the rodless electric cylinder. One rodless electric cylinder is arranged on each side of the photovoltaic panel, and the length direction of the rodless electric cylinder is the same as the length direction of the photovoltaic panel. The lower plate surface of the scraper is the scraping surface, and the scraping surface is attached to the upper plate surface of the photovoltaic panel.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] After snow accumulates on the inclined photovoltaic panels of each photovoltaic frame, by activating the scraping mechanism on the first photovoltaic panel in the arrangement, the scraping mechanism on the first photovoltaic panel moves obliquely upward from bottom to top, pushing the snow on the first photovoltaic panel obliquely upward into the driving mechanism. After the driving mechanism is filled with snow, it will control the scraping mechanism on the adjacent second photovoltaic panel to start, and then push the snow on the second photovoltaic panel obliquely upward from bottom to top into the driving mechanism between the second photovoltaic panel and the third photovoltaic panel. And so on, the snow on multiple linearly arranged photovoltaic panels can be scraped off in sequence, greatly reducing the difficulty of cleaning the remaining snow on multiple linearly arranged photovoltaic panels in the photovoltaic system. Moreover, after the snow enters the driving mechanism, the heating mechanism can directly melt the snow in the driving mechanism into water and automatically flow to the ground, without deliberately cleaning the snow in the driving mechanism, greatly improving the convenience of the cleaning work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] In the drawings:

[0021] Figure 1 is a schematic three-dimensional structure diagram of a photovoltaic system applicable to high-altitude areas provided by an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of two adjacent groups of photovoltaic frames provided by an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a driving mechanism provided by an embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of a heating mechanism provided by an embodiment of the present invention;

[0025] Figure 5 is an embodiment of the present invention Figure 4 Schematic enlarged structure diagram of part A;

[0026] Figure 6 is a schematic structural diagram of a guiding mechanism provided by an embodiment of the present invention;

[0027] Figure 7 is a schematic structural diagram of a scraping mechanism provided by an embodiment of the present invention

[0028] Figure 8 is an embodiment of the present inventionFigure 7 Schematic diagram of the enlarged structure of part B.

[0029] Marks and corresponding parts names in the attached drawings:

[0030] 1-photovoltaic frame, 11-first bracket, 12-photovoltaic panel, 2-scraping mechanism, 21-rodless electric cylinder, 22-scraper, 221-connecting rod, 3-driving mechanism, 31-second bracket, 311-rod body, 312-bottom plate, 32-loading assembly, 321-loading box, 3211-hollow part, 32111-through hole, 3212-connecting bar hole, 322-extension plate, 323-spring, 324-baffle, 33-starting assembly, 331-first battery, 332-first guide Electric plate, 333-second conductive plate, 4-heating mechanism, 41-heat-conducting component, 411-third conductive plate, 412-electric heating rod, 42-pushing component, 421-pushing plate, 422-fourth conductive plate, 5-export mechanism, 51-pumping component, 511-drain pipe, 512-electric valve, 52-floating opening and closing component, 521-second battery, 522-first conductive sheet, 523-second conductive sheet, 524-positioning rope, 525-float, 6-vertical channel, 7-magnet. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0035] Embodiment

[0036] Combined with Figures 1 - 8 , this embodiment provides a photovoltaic system applicable to plateau areas, including a photovoltaic frame body 1, a scraping mechanism 2, a driving mechanism 3, and a heating mechanism 4; multiple groups of photovoltaic frame bodies 1 are distributed linearly on the ground, and the photovoltaic frame body 1 includes a first support 11 and a photovoltaic panel 12. The photovoltaic panel 12 is inclined and arranged on the first support 11. Among adjacent two groups of photovoltaic frame bodies 1, the highest end of the inclination of the photovoltaic panel 12 in the previous group is directly above the lowest end of the inclination of the photovoltaic panel 12 in the next group; the scraping mechanism 2 is installed on the photovoltaic panel 12 and can reciprocate along the inclined direction of the photovoltaic panel 12 to remove the snow remaining on the surface of the photovoltaic panel 12; the driving mechanism 3 is installed between adjacent two groups of photovoltaic frame bodies 1, and when the scraping mechanism 2 moves from bottom to top, the snow on the surface of the photovoltaic panel 12 in the previous group can be pushed into the driving mechanism 3 to drive the driving mechanism 3 to operate and control the scraping mechanism 2 on the next group of photovoltaic panels 12 to start; the heating mechanism 4 is installed on the driving mechanism 3 to heat the driving mechanism 3 so that the snow entering the driving mechanism 3 is heated and melted into water and discharged from the driving mechanism 3. Exemplarily, in order to allow the snow to fall smoothly between two photovoltaic frame bodies 1, the distance between adjacent two photovoltaic frame bodies 1 is 7 cm.

[0037] Thus, when the inclined photovoltaic panels 12 of each photovoltaic frame body 1 are all covered with snow, at this time, the worker can directly start the scraping mechanism 2 on the photovoltaic panel 12 arranged in the first place, so that the scraping mechanism 2 on the first photovoltaic panel 12 moves obliquely upward from bottom to top, and pushes the snow on the first photovoltaic panel 12 obliquely upward into the driving mechanism 3. After the driving mechanism 3 is filled with snow, it will control the scraping mechanism 2 on the adjacent second photovoltaic panel 12 to start, and then push the snow on the second photovoltaic panel 12 obliquely upward from bottom to top into the driving mechanism 3 between the second photovoltaic panel 12 and the third photovoltaic panel 12. By analogy, the snow on multiple linearly arranged photovoltaic panels 12 can be scraped off in sequence, greatly reducing the difficulty of cleaning the snow remaining on the multiple linearly arranged photovoltaic panels 12 in the photovoltaic system. Moreover, after the snow enters the driving mechanism 3, the heating mechanism 4 can directly melt the snow in the driving mechanism 3 into water and automatically flow to the ground, without deliberately cleaning the snow in the driving mechanism 3, greatly improving the convenience of the cleaning work.

[0038] Re - combine Figure 1 and Figure 2 ,the driving mechanism 3 includes a second support 31, a loading assembly 32, and a starting assembly 33; the loading assembly 32 is vertically slidably arranged on the second support 31, the starting assembly 33 is installed on the second support 31 and is located directly below the loading assembly 32, and after the loading assembly 32 is filled with snow, it is driven by the gravity of the snow to move vertically downward and fit with the starting assembly 33 to drive the scraping mechanism 2 on the adjacent photovoltaic frame 1 to operate. Specifically, combining Figure 3 ,the loading assembly 32 includes a loading box 321, an extension plate 322, a spring 323, and a baffle 324; wherein, the interior of the loading box 321 is hollow and the upper end is open, the extension plate 322 is vertically arranged at the top edge of one side of the loading box 321 far from the highest inclined end of the photovoltaic panel 12, the baffle 324 is inclinedly arranged at the top of the extension plate 322, and the baffle 324 is used to block the upper - end opening of the loading box 321, and the lowest inclined end of the baffle 324 and the highest inclined end of the photovoltaic panel 12 are inclined to provide an entrance for snow to enter the loading box 321 from the photovoltaic panel 12; the second support 31 has a plurality of vertical and parallel rod bodies 311, and the loading box 321 is provided with sliding holes for the rod bodies 311 to pass through and slide; the spring 323 is sleeved on the rod body 311, the second support 31 also has a bottom plate 312, the bottom end of the spring 323 abuts against the bottom plate 312, the top end abuts against the bottom of the loading box 321, and when the spring 323 is in a natural state and the loading box 321 is not filled with snow, the loading box 321 and the bottom plate 312 are separated in the vertical direction.

[0039] Meanwhile, the starting assembly 33 includes a first storage battery 331 and a first conductive plate 332, the first storage battery 331 is installed on the bottom plate 312, the upper surface of the first storage battery 331 is provided with a second conductive plate 333, the first conductive plate 332 is arranged at the bottom of the loading box 321, and the second conductive plate 333 is electrically connected to the scraping mechanism 2 on the adjacent next - group photovoltaic frame 1 through a wire. Exemplarily, the scraping mechanism 2 here refers to the scraping mechanism 2 on the next - group photovoltaic frame 1. For example, if the driving mechanism 3 is located between the first photovoltaic panel 12 and the second photovoltaic panel 12, then the scraping mechanism 2 here refers to the scraping mechanism 2 on the second photovoltaic panel 12.

[0040] Among them, the first conductive plate 332 is electrically connected to the first storage battery 331. Exemplarily, the first conductive plate 332 is electrically connected to the first storage battery 331 through a wire; when the loading box 321 is filled with snow and moves vertically downward so that the first conductive plate 332 fits with the second conductive plate 333, the scraping mechanism 2 on the adjacent next - group photovoltaic frame 1 is electrically connected to the first storage battery 331.

[0041] On this basis, the scraping mechanism 2 will push the snow on the surface of the photovoltaic panel 12 into the loading box 321 from the entrance. Since the loading box 321 is separated from the bottom plate 312 in the vertical direction under the elastic force of the spring 323 when no snow is loaded, after the snow on the surface of the photovoltaic panel 12 is pushed into the loading box 321 from the entrance, the gravity of the loading box 321 increases, causing the spring 323 to be gradually compressed. During this process, the loading box 321 filled with snow will gradually move downward in the vertical direction and approach the second conductive plate 333, eventually causing the first conductive plate 332 and the second conductive plate 333 to fit in the vertical direction. Since the first conductive plate 332 is electrically connected to the first storage battery 331 and the second conductive plate 333 is electrically connected to the scraping mechanism 2, at this time, the first storage battery 331 will transfer electrical energy to the scraping mechanism 2 to push the scraping mechanism 2 on the photovoltaic panel 12 in the next set of photovoltaic frames 1 to push the snow upward from the bottom to the next driving mechanism 3. By analogy, the snow on the surfaces of all the photovoltaic panels 12 in the same straight line can be cleared.

[0042] Combined with Figure 3 As shown in the figure, the heating mechanism 4 includes a heat conduction component 41 and a pushing component 42. The heat conduction component 41 is vertically movably arranged in the loading box 321, and the pushing component 42 is installed on the first storage battery 331. When the loading box 321 is filled with snow and moves vertically downward, the heat conduction component 41 moves vertically downward close to the pushing component 42, causing the heat conduction component 41 to move vertically upward to the upper inner side near the upper end opening of the loading box 321.

[0043] At the same time, the heat conduction component 41 includes a third conductive plate 411 and an electric heating rod 412 that are electrically connected. A plurality of hollow parts 3211 are arranged in parallel on the inner bottom wall of the loading box 321, and a connecting strip hole 3212 is vertically penetrated through the inner bottom wall of the loading box 321. The hollow parts 3211 and the connecting strip hole 3212 are communicated and aligned in the vertical direction. The third conductive plate 411 is vertically slidably arranged in the hollow part 3211. A plurality of electric heating rods 412 are vertically distributed along the length direction of the third conductive plate 411, and a plurality of through holes 32111 for the electric heating rods 412 to pass through are provided on the top wall of the hollow part 3211. The plurality of through holes 32111 and the electric heating rods 412 are in one-to-one correspondence in the vertical direction.

[0044] Moreover, the pushing component 42 includes a pushing plate 421 and a fourth conductive plate 422. A plurality of pushing plates 421 are provided on the top of the first storage battery 331, and the plurality of pushing plates 421 correspond to the connecting bar holes 3212 one by one in the vertical direction. The fourth conductive plate 422 is provided on the top of the pushing plate 421 and is electrically connected to the first storage battery 331. The fourth conductive plate 422 is vertically opposite to the third conductive plate 411. When the loading box 321 is filled with snow and moves vertically downward, the third conductive plate 411 fits with the fourth conductive plate 422, and the fourth conductive plate 422 pushes the third conductive plate 411 to move vertically upward so that the heating rod 412 extends out of the through hole 32111.

[0045] On this basis, when the loading box 321 is filled with snow and moves vertically downward, the connecting bar holes 3212 will actively move vertically downward and approach the pushing plate 421, so that the pushing plate 421 enters the hollow part 3211 through the connecting bar holes 3212, and the fourth conductive plate 422 fits with the third conductive plate 411. At this time, the first storage battery 331 is electrically connected to the heating rod 412, and the heating rod 412 will generate heat. Until the loading box 321 filled with snow abuts against the inner top wall of the first storage battery 331 and stops moving downward, at this time the pushing plate 421 will vertically push out the heating rod 412 from the through hole 32111, so that multiple heated heating rods 412 move to the upper inner side near the upper end opening of the loading box 321. In this case, the heated heating rods 412 will melt the snow in the upper part of the loading box 321, rather than melting the snow in the lower part at the beginning. After melting, water can be formed and discharged from the loading box 321 to achieve the effect of automatically cleaning the water in the loading box 321.

[0046] Exemplarily, as Figure 4 and Figure 5 shown, both the third conductive plate 411 and the fourth conductive plate 422 are provided with outer shells, so that the conductive surface of the third conductive plate 411 is only exposed below under the action of the outer shell, while the conductive surface of the fourth conductive plate 422 is only exposed above under the covering action of the outer shell, and their conductive surfaces are vertically opposite. And a waterproof film is covered on the outside of the conductive surfaces of the third conductive plate 411 and the fourth conductive plate 422. One end of the waterproof film is connected to the periphery of the upper end opening of the connecting bar hole 3212, and the other end is connected to the outer shell of the third conductive plate 411 and is located around the conductive surface of the third conductive plate 411, so that the conductive surfaces of the third conductive plate 411 and the fourth conductive plate 422 are not easily contaminated by water and cause failures. Moreover, the waterproof film is telescopically arranged, that is, it can always cover their conductive surfaces during the upward movement of the third conductive plate 411 to improve the waterproof effect.

[0047] Combined with Figure 3 and Figure 6, a discharge mechanism 5 is also provided on the loading box 321, and the discharge mechanism 5 is used for automatically discharging the water in the loading box 321. Specifically, the discharge mechanism 5 includes a pumping component 51 and a floating opening and closing component 52 which are electrically connected. The floating opening and closing component 52 can drive the pumping component 51 to open and close as the water level in the loading box 321 rises and falls. Among them, when the water level in the loading box 321 rises to the first position, the floating opening and closing component 52 drives the pumping component 51 to open and discharge the water in the loading box 321. When the water level in the loading box 321 drops to the second position, the floating opening and closing component 52 closes and synchronously closes the pumping component 51.

[0048] At the same time, the pumping component 51 includes a drain pipe 511 and an electric valve 512. The electric valve 512 is opened and closed on the drain pipe 511. Both the drain pipe 511 and the inner bottom wall of the loading box 321 are inclined, and the highest end of the drain pipe 511 is communicated with the lowest end of the loading box 321.

[0049] Furthermore, the floating opening and closing component 52 includes a second storage battery 521, a first conductive sheet 522, a second conductive sheet 523, a positioning rope body 524 and a float 525. The second storage battery 521 is arranged on the outer side wall of the loading box 321. A vertical channel 6 is vertically opened in the side wall of the loading box 321. The lowermost end of the vertical channel 6 is communicated with the inside of the drain pipe 511 and the loading box 321. The float 525 can move vertically in the vertical channel 6 as the water level rises and falls. The first conductive sheet 522 is connected to the top of the float 525 through the positioning rope body 524, and the first conductive sheet 522 is electrically connected to the electric valve 512 through a wire. The second conductive sheet 523 is arranged on the inner top wall of the vertical channel 6 and is vertically opposite to the first conductive sheet 522. The second conductive sheet 523 is electrically connected to the second storage battery 521. Magnets 7 are arranged on the wall surfaces of the first conductive sheet 522 and the second conductive sheet 523 that are opposite to each other. When the water level in the loading box 321 is at the first position, the float 525 drives the first conductive sheet 522 and the second conductive sheet 523 to be magnetically attached. During the process that the water level in the loading box 321 gradually drops from the first position to the second position, the positioning rope body 524 is gradually straightened, and at this time, the first conductive sheet 522 and the second conductive sheet 523 are always magnetically attached. When the water level in the loading box 321 is at the second position, the float 525 is located at the bottom of the vertical channel 6 and cuts off the communication path between the drain pipe 511 and the inside of the loading box 321, and the first conductive sheet 522 is separated from the second conductive sheet 523 under the action of the positioning rope body 524 and the float 525.

[0050] On this basis, the gravity of the float 525 is greater than the magnetic attraction force between the magnets 7. When the float 525 returns to the bottom of the vertical channel 6 as the water level drops, the float 525 pulls the first conductive sheet 522 away from the second conductive sheet 523 by its own gravity. Exemplarily, the length of the positioning rope 524 is less than or equal to the displacement length of the float 525 when it moves down from near the second conductive sheet 523 to the bottom of the vertical channel 6, so that when the float 525 is located at the bottom of the vertical channel 6 and cuts off the communication path between the drain pipe 511 and the interior of the loading box 321, the positioning rope 524 can just pull the first conductive sheet 522 away from the second conductive sheet 523.

[0051] After such a setting, when the heating rod heats the snow on the upper part in the loading box 321, most of the snow in the loading box 321 melts into water. Then the water will enter the vertical channel 6 and make the float 525 in the vertical channel 6 move vertically upward along the vertical channel 6, driving the first conductive sheet 522 to approach the second conductive sheet 523 until they fit together. At this time, the second battery 521 is connected to the electric valve 512, and the electric valve 512 will open, allowing the water in the loading box 321 to be automatically discharged from the discharge pipe. During this process, the water level in the loading box 321 will gradually decrease. At this time, the float 525 will also gradually move down in the vertical channel 6. However, due to the presence of the magnets 7, the first conductive sheet 522 and the second conductive sheet 523 will always remain in a fitting state, so that the float 525 will gradually move away from the first conductive sheet 522 and move down. In this case, the positioning rope 524 will be gradually straightened until the float 525 is located at the bottom of the vertical channel 6 as the water level drops and cuts off the communication path between the drain pipe 511 and the interior of the loading box 321. At this time, it indicates that most of the water in the loading box 321 has been drained. The positioning rope 524 can just pull the first conductive sheet 522 away from the second conductive sheet 523, so that the electric valve 512 will close again only after most of the water in the loading box 321 has been emptied, without the need for an operator to empty the water in the loading box 321 additionally, achieving the effect of automatically emptying the water in the loading box 321.

[0052] At the same time, since the snow on the upper part will first melt into water, the snow on the lower part will not be melted temporarily, but will be melted by the heat transfer of the water on the upper part to the lower part, so that most of the water in the loading box 321 will enter the vertical channel 6 after being melted into water, and the discharge will be more thorough.

[0053] It should be noted that the lower openings of the plurality of communication holes 3212 are misaligned with the first conductive plate 332, and the plurality of top push plates 421 are misaligned with the second conductive plate 333.

[0054] Combined with Figure 7 andFigure 8 , the scraping mechanism 2 includes a rodless electric cylinder 21 and a scraper 22. The length direction of the scraper 22 is consistent with the width direction of the photovoltaic panel 12. The length of the scraper 22 is longer than the width of the photovoltaic panel 12. A connecting rod 221 is provided at the bottom on one side of the photovoltaic panel 12. The connecting rod 221 is detachably connected to the moving piston of the rodless electric cylinder 21. Exemplarily, the connecting rod 221 is bolted to the moving piston of the rodless electric cylinder 21. One rodless electric cylinder 21 is provided on each side of the photovoltaic panel 12, and the length direction of the rodless electric cylinder 21 is consistent with the length direction of the photovoltaic panel 12. The lower plate surface of the scraper 22 is a scraping surface, and the scraping surface is in contact with the upper plate surface of the photovoltaic panel 12.

[0055] With such a setting, when the rodless electric cylinder 21 on the first photovoltaic panel 12 is started, the rodless electric cylinder 21 drives the scraper 22 to reciprocate along the inclined direction of the photovoltaic panel 12, and the snow on the surface of the photovoltaic panel 12 can be effectively removed. Exemplarily, side plates are vertically provided at both ends of the scraper 22, and the side plates and the scraper 22 form an enclosure space for storing snow, so that the snow can be pushed into the loading box 321 as much as possible, avoiding the situation that the amount of snow entering the loading box 321 is too small due to the snow falling from both sides of the photovoltaic panel 12.

[0056] It should be noted that in the embodiments of the present invention, all electrical connection methods are connected through spring wires, so that some moving components can also maintain an electrical connection state.

[0057] The specific embodiments described above have further detailed the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic system suitable for plateau areas, characterized in that: include: A photovoltaic frame (1) has a plurality of groups distributed along a straight line, and the photovoltaic frame (1) comprises a first frame (11) and a photovoltaic panel (12), the photovoltaic panel (12) being obliquely arranged on the first frame (11), and in two adjacent groups of photovoltaic frames (1), the highest inclination end of the photovoltaic panel (12) of the first group is located directly above the lowest inclination end of the photovoltaic panel (12) of the second group; A scraping mechanism (2) is installed on the photovoltaic panel (12), and the scraping mechanism (2) can reciprocate along the tilt direction of the photovoltaic panel (12) to remove snow accumulated on the surface of the photovoltaic panel (12); The driving mechanism (3) is installed between two adjacent groups of photovoltaic frames (1), and when the scraping mechanism (2) moves from bottom to top, the snow on the surface of the photovoltaic panels (12) of the previous group can be pushed into the driving mechanism (3), so as to drive the driving mechanism (3) to operate and control the scraping mechanism (2) on the photovoltaic panels (12) of the next group to start; The heating mechanism (4) is installed on the driving mechanism (3) and is used to heat the driving mechanism (3) so that the accumulated snow entering the driving mechanism (3) is heated and melted into water and discharged from the driving mechanism (3).

2. A photovoltaic system suitable for plateau areas according to claim 1, characterized in that: The driving mechanism (3) comprises a second bracket (31), a loading component (32) and a starting component (33); the loading component (32) is vertically slidably arranged on the second bracket (31), and the starting component (33) is installed on the second bracket (31) and is located directly below the loading component (32). After the loading component (32) is loaded with snow, it is driven by the gravity of the snow to move vertically downward and trigger the starting component (33), so that the scraping mechanism (2) on the adjacent photovoltaic frame (1) is operated.

3. A photovoltaic system suitable for plateau areas according to claim 2, characterized in that: The loading assembly (32) comprises a loading box (321), an extension plate (322), a spring (323) and a baffle (324); wherein: The interior of the loading box (321) is hollow and the upper end is open; the extension plate (322) is vertically arranged on the top edge of the loading box (321) away from the highest inclined end of the photovoltaic panel (12); the baffle (324) is obliquely arranged on the top of the extension plate (322); and the baffle (324) is used to shield the upper opening of the loading box (321); the lowest inclined end of the baffle (324) and the highest inclined end of the photovoltaic panel (12) are inclined to form an entrance for snow to enter the loading box (321) from the photovoltaic panel (12); The second bracket (31) has a plurality of vertical and parallel rods (311), and the loading box (321) is provided with sliding holes for the rods (311) to pass through and slide. The spring (323) is sleeved on the rod body (311); the second bracket (31) further comprises a bottom plate (312); the bottom end of the spring (323) abuts against the bottom plate (312), and the top end abuts against the bottom of the loading box (321); when the spring (323) is in a natural state and there is no accumulated snow in the loading box (321), the loading box (321) is spaced apart from the bottom plate (312) in a vertical direction.

4. A photovoltaic system suitable for plateau areas according to claim 3, characterized in that: The starting assembly (33) comprises a first storage battery (331) and a first conductive plate (332), wherein the first storage battery (331) is mounted on the bottom plate (312), a second conductive plate (333) is arranged on the upper surface of the first storage battery (331), the first conductive plate (332) is arranged at the bottom of the loading box (321), the second conductive plate (333) is electrically connected to a scraping mechanism (2) on an adjacent rear group of the photovoltaic frame (1), and the first conductive plate (332) is electrically connected to the first storage battery (331); When the loading box (321) is loaded with snow and moves vertically downward so that the first conductive plate (332) and the second conductive plate (333) are in contact with each other, the scraping mechanism (2) on the photovoltaic frame (1) of the adjacent rear group is electrically connected to the first storage battery (331).

5. A photovoltaic system suitable for plateau areas according to claim 4, characterized in that: The heating mechanism (4) comprises a heat-conducting component (41) and a pushing component (42); the heat-conducting component (41) is arranged vertically in the loading box (321) and the pushing component (42) is installed on the first storage battery (331); when the loading box (321) is filled with snow and moves vertically downward, the heat-conducting component (41) moves vertically downward toward the pushing component (42) so that the heat-conducting component (41) moves vertically upward to the inner upper side of the loading box (321) close to the upper end opening.

6. A photovoltaic system suitable for plateau areas according to claim 5, characterized in that: The heat-conducting component (41) comprises an electrically connected third conductive plate (411) and an electric heating rod (412); a plurality of hollow portions (3211) are arranged in parallel on the inner bottom wall of the loading box (321); a connecting bar hole (3212) is vertically penetrated through the inner bottom wall of the loading box (321); the hollow portion (3211) and the connecting bar hole (3212) are connected and face each other in the vertical direction; the third conductive plate (411) is vertically slidably arranged in the hollow portion (3211); a plurality of the electric heating rods (412) are vertically distributed along the length direction of the third conductive plate (411); and a plurality of through holes (32111) for the electric heating rods (412) to pass through are arranged on the top wall of the hollow portion (3211); the plurality of through holes (32111) correspond one to one with the electric heating rods (412) in the vertical direction.

7. A photovoltaic system suitable for plateau areas according to claim 6, characterized in that: The pushing assembly (42) comprises a pushing plate (421) and a fourth conductive plate (422), wherein a plurality of the pushing plates (421) are provided on the top of the first storage battery (331), and the plurality of pushing plates (421) correspond one to one with the connecting strip holes (3212) in the vertical direction, and the fourth conductive plate (422) is provided on the top of the pushing plate (421), and the fourth conductive plate (422) is electrically connected to the first storage battery (331); The fourth conductive plate (422) and the third conductive plate (411) are opposite to each other in the vertical direction. When the loading box (321) is loaded with snow and moves vertically downward, the third conductive plate (411) and the fourth conductive plate (422) fit together, and the fourth conductive plate (422) pushes the third conductive plate (411) to move vertically upward so that the electric heating rod (412) extends out from the through hole (32111).

8. The photovoltaic system suitable for plateau areas according to claim 3, characterized in that: The loading box (321) is also provided with a discharge mechanism (5), and the discharge mechanism (5) is used to automatically discharge the water in the loading box (321); The outlet mechanism (5) comprises an electrically connected pumping assembly (51) and a floating opening and closing assembly (52), wherein the floating opening and closing assembly (52) can drive the pumping assembly (51) to open and close as the water level rises and falls in the loading box (321); When the water level in the loading box (321) rises to a first position, the floating opening and closing component (52) drives the pump-out component (51) to open and discharge the water in the loading box (321); when the water level in the loading box (321) drops to a second position, the floating opening and closing component (52) closes and synchronously closes the pump-out component (51).

9. A photovoltaic system suitable for plateau areas according to claim 8, characterized in that: The pump-out assembly (51) comprises a drain pipe (511) and an electric valve (512); the electric valve (512) is opened and closed on the drain pipe (511); the drain pipe (511) and the inner bottom wall of the loading box (321) are both inclined, and the highest end of the drain pipe (511) is connected to the lowest end of the loading box (321); The floating opening and closing assembly (52) comprises a second storage battery (521), a first conductive sheet (522), a second conductive sheet (523), a positioning rope (524) and a float (525). The second storage battery (521) is arranged on the outer wall of the loading box (321). A vertical channel (6) is vertically opened in the side wall of the loading box (321). The lowermost end of the vertical channel (6) is connected to the drain pipe (511) and the interior of the loading box (321). The float (525) can be moved in the vertical channel (6) as the water level rises and falls. Vertical movement, the first conductive sheet (522) is connected to the top of the float (525) through a positioning rope (524) and the first conductive sheet (522) is electrically connected to the electric valve (512) through a wire, the second conductive sheet (523) is arranged on the inner top wall of the vertical channel (6) and vertically faces the first conductive sheet (522), the second conductive sheet (523) is electrically connected to the second storage battery (521), and magnets (7) are arranged on the wall surfaces facing the first conductive sheet (522) and the second conductive sheet (523); When the water level in the loading box (321) is at the first position, the float (525) drives the first conductive sheet (522) and the second conductive sheet (523) to be magnetically attached; in the process of the water level in the loading box (321) gradually decreasing from the first position to the second position, the positioning rope (524) is gradually straightened, and at this time, the first conductive sheet (522) and the second conductive sheet (523) are always magnetically attached; when the water level in the loading box (321) is at the second position, the float (525) is located at the bottom of the vertical channel (6) and cuts off the communication path between the drainage pipe (511) and the inside of the loading box (321), and the first conductive sheet (522) is separated from the second conductive sheet (523) under the action of the positioning rope (524) and the float (525); The gravity of the float (525) is greater than the magnetic attraction between the magnets (7), so that when the float (525) is located at the bottom of the vertical channel (6) again as the water level decreases, the float (525) pulls the first conductive sheet (522) away from the second conductive sheet (523) by its own gravity.

10. A photovoltaic system suitable for plateau areas according to any one of claims 1 to 9, characterized in that: The scraping mechanism (2) comprises a rodless electric cylinder (21) and a scraper (22); the length direction of the scraper (22) is consistent with the width direction of the photovoltaic panel (12); the length of the scraper (22) is equal to the width of the photovoltaic panel (12); a connecting rod (221) is provided at the bottom of the scraper (22) located on one side of the photovoltaic panel (12); the connecting rod (221) is detachably connected to the movable piston of the rodless electric cylinder (21); The rodless electric cylinder (21) is provided on each side of the photovoltaic panel (12), and the length direction of the rodless electric cylinder (21) is consistent with the length direction of the photovoltaic panel (12); The lower plate surface of the scraper (22) is a scraping surface, and the scraping surface is in contact with the upper plate surface of the photovoltaic panel (12).

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