Shutdown sensing device for photovoltaic cleaning robot

Abstract

The utility model relates to the photovoltaic field, and discloses a photovoltaic cleaning robot shutdown induction device, a cleaning robot is arranged above a photovoltaic panel in a left-right moving mode, the left end and the right end of the photovoltaic panel are respectively provided with an extension frame, and stopping plates are installed at the ends, close to the photovoltaic panel, of the front side and the rear side of the upper portion of each extension frame. A stopping plate is arranged on the extending frame, a limiting mechanism is arranged on the stopping plate, a blocking plate is arranged at the end, away from the photovoltaic panel, of the upper portion of the stopping plate, shutdown detection heads are arranged on the left side and the right side of the cleaning robot correspondingly, longitudinal rods are arranged on the extending frame on the left side and the right side correspondingly, and a position sensing structure is arranged above the longitudinal rods. The position of the whole position sensing structure can be greatly adjusted through the mounting frame and the connecting frame, the position of the receiver on the upper portion can be finely adjusted up and down and front and back through the arranged lifting plate and the arranged vertical frame, then the receiver is aligned to a shutdown detection head, and subsequent shutdown sensing is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaics, in particular to a shutdown sensing device for a photovoltaic cleaning robot. Background Art

[0002] Photovoltaic power generation is a form of clean energy. PV panels are installed outdoors. As dust and sand erode the panels, they gradually accumulate dust and other dirt, leading to a decrease in power generation. Therefore, some manufacturers use PV cleaning robots. To ensure the robots can maneuver over the panels without falling off, they are typically equipped with a stop sensor to locate them and prevent them from falling.

[0003] Currently, the shutdown sensing structure generally sets the sensor head on the cleaning robot and the receiver on the photovoltaic panel bracket, and it is necessary to ensure that the two are collinear. When installing the receiver, it is generally fixed directly to the bracket with screws. This cannot ensure that the sensor head and the receiver are accurately collinear, which will cause errors during installation. Similarly, most photovoltaic panels are arranged in open areas. The daily wind speed in these places is relatively high, and there are occasional strong winds. Therefore, it is easy to blow the photovoltaic cleaning robot away from the parking position, causing the photovoltaic cleaning robot to be unable to charge normally, or even being blown off the parking position, damaging the photovoltaic cleaning robot. To this end, we have designed a shutdown sensing device for photovoltaic cleaning robots. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a photovoltaic cleaning robot shutdown sensing device.

[0005] The utility model is implemented by the following technical solutions: a photovoltaic cleaning robot stop sensing device, comprising a plurality of photovoltaic panels installed in parallel, a cleaning robot is arranged above the photovoltaic panels for left and right movement, an extension frame is provided at the left and right ends of the photovoltaic panels, a docking plate is installed at the front and rear ends of each extension frame close to the photovoltaic panels, a limiting mechanism is provided on the docking plate, a blocking plate is provided at the end of the docking plate away from the photovoltaic panels, and a rubber pad is provided on the inner side of the blocking plate;

[0006] A shutdown detection head is provided on both sides of the left and right sides of the cleaning robot, and a longitudinal rod is provided on the extension frames on both sides. A position sensing structure is provided above the longitudinal rod, and the position sensing structure includes a mounting frame installed on the longitudinal rod, a connecting frame is installed above the mounting frame, a vertical frame is welded above the connecting frame, a lifting frame is installed on the vertical frame, a fixed frame is installed on the lifting frame, and a receiver is installed in the fixed frame. The shutdown detection head and the receiver are a digital optical fiber sensor and its light receiving element, which can be purchased on the market.

[0007] As a further improvement of the above solution, the upper surfaces of the multiple docking plates are flush with the upper surfaces of the photovoltaic panels, and the outward surfaces of the docking plates are flush with the outward surfaces of the photovoltaic panels, which facilitates the movement of the cleaning robot to the docking plates without blocking the top of the photovoltaic panels and causing a decrease in their light conversion efficiency.

[0008] As a further improvement of the above solution, the left and right sides of the mounting frame are bent to form a horizontal part, and a longitudinally distributed hole 1 is provided on the horizontal part. The left and right sides above the connecting frame are provided with transversely distributed holes 2, which facilitate the rapid installation of the mounting frame and the connecting frame, and the position sensing structure can move back and forth on the longitudinal rod to facilitate changing its position.

[0009] As a further improvement of the above solution, the vertical frame is penetrated from front to back to form two groups of vertical and symmetrically distributed holes three, the lifting frame is L-shaped, and its side is provided with longitudinally distributed holes four, and the lifting frame can move forward and backward and up and down on the vertical frame, thereby facilitating fine-tuning of the position of the receiver.

[0010] As a further improvement of the above scheme, the limiting mechanism includes a base frame installed under the docking plate, an opening is opened on the base frame, and widening plates are provided at the left and right ends of the base frame, a limiting spring is connected under the widening plate, the bottom end of the limiting spring is connected to a lifting plate, the lifting plate is placed in the opening, and an electric push rod is installed under the lifting plate, the push rod of the electric push rod is above the lifting plate and connected to the limiting plate, the extension and retraction of the electric push rod can make the limiting plate move up and down, thereby limiting the cleaning robot or making it move on the photovoltaic panel to clean;

[0011] The docking plate is provided with a lifting opening, the limiting plate is placed in the lifting opening, and the top of the limiting plate is above the docking plate. The limiting plate can limit the cleaning robot so that it is on the docking plate and cannot move, thereby avoiding the movement of the cleaning robot caused by strong winds.

[0012] As a further improvement to the above solution, a guide rod is provided on the widening plate, and the lifting plate is slidably sleeved with the widening plate to facilitate guiding the up and down movement of the lifting plate;

[0013] The end of the limit plate close to the photovoltaic panel is designed with an inclined surface, and the lifting plate is suspended on the base frame by a limit spring. When the electric push rod fails and cannot be used, the rollers of the cleaning robot can move along the inclined surface and make the limit plate and the lifting plate move downward as a whole, so that the cleaning robot can still enter the docking plate. At this time, the cleaning robot cannot be removed and can only be used after maintenance, which improves safety.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The present invention provides a position sensing structure, wherein the mounting frame and the connecting frame enable the position of the entire position sensing structure to be adjusted to a large extent. The provided lifting plate and the vertical frame enable the position of the upper receiver to be fine-tuned up and down and forward and backward, thereby aligning the receiver with the stop detection head, facilitating subsequent stop sensing.

[0016] 2. By setting up a docking plate, the cleaning robot has a larger placement space, will not block the photovoltaic panel, will not cause its light conversion efficiency to decrease, and with the setting of the limit mechanism, it can limit it so that it is on the docking plate and cannot move, thus preventing the cleaning robot from moving in windy weather;

[0017] 3. The lifting plate is suspended on the base frame through a limit spring. When the electric push rod fails and cannot be used, the rollers of the cleaning robot can move along the inclined surface and make the limit plate and the lifting plate move downward as a whole, so that the cleaning robot can still enter the docking plate. At this time, the cleaning robot cannot be removed and can only be used after maintenance, which improves safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a photovoltaic cleaning robot stop sensing device provided by the utility model;

[0019] Figure 2 for Figure 1 Structural diagram of the position sensing structure;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of the middle mounting frame, connecting frame and lifting frame;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the middle limit mechanism;

[0022] Figure 5 for Figure 4 Side view of the center limit plate.

[0023] Description of main symbols:

[0024] 1. Photovoltaic panel; 2. Extension frame; 21. Longitudinal rod; 3. Docking plate; 31. Lifting port; 4. Blocking plate; 5. Cleaning robot; 6. Stop detection head; 7. Position sensing structure; 71. Receiver; 72. Connecting frame; 73. Vertical frame; 74. Mounting frame; 75. Fixed frame; 76. Lifting frame; 8. Limiting mechanism; 81. Base frame; 82. Electric push rod; 83. Limiting plate; 84. Lifting plate; 85. Guide; 86. Limiting spring. DETAILED DESCRIPTION

[0025] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example:

[0027] Please combine Figure 1-Figure 5 , a photovoltaic cleaning robot stop sensing device of this embodiment includes a plurality of photovoltaic panels 1 installed in parallel, a cleaning robot 5 is arranged above the photovoltaic panels 1 for left and right movement, an extension frame 2 is provided at the left and right ends of the photovoltaic panels 1, a docking plate 3 is installed at the front and rear ends of each extension frame 2 close to the photovoltaic panel 1, a limiting mechanism 8 is provided on the docking plate 3, a blocking plate 4 is provided at the end of the docking plate 3 away from the photovoltaic panel 1, and a rubber pad is provided on the inner side of the blocking plate 4;

[0028] A shutdown detection head 6 is provided on the left and right sides of the cleaning robot 5, and a longitudinal rod 21 is provided on the left and right extension frames 2. A position sensing structure 7 is provided above the longitudinal rod 21. The position sensing structure 7 includes a mounting frame 74 installed on the longitudinal rod 21, a connecting frame 72 is installed above the mounting frame 74, a vertical frame 73 is welded above the connecting frame 72, a lifting frame 76 is installed on the vertical frame 73, a fixing frame 75 is installed on the lifting frame 76, and a receiver 71 is installed in the fixing frame 75. The shutdown detection head 6 and the receiver 71 are a digital optical fiber sensor and its light receiving element, which can be purchased on the market.

[0029] The upper surfaces of multiple docking plates 3 are flush with the upper surface of the photovoltaic panel 1, and the outward surface of the docking plates 3 is flush with the outward surface of the photovoltaic panel 1, which makes it easy for the cleaning robot 5 to move onto the docking plates 3 without blocking the top of the photovoltaic panel 1 and causing its light conversion efficiency to decrease.

[0030] The left and right sides of the mounting frame 74 are bent to form a horizontal portion, and a longitudinally distributed hole 1 is opened on the horizontal portion. A transversely distributed hole 2 is opened on the left and right sides above the connecting frame 72, which facilitates the rapid installation of the mounting frame 74 and the connecting frame 72, and the position sensing structure 7 can move back and forth on the longitudinal rod 21 to facilitate changing its position.

[0031] The vertical frame 73 is penetrated from front to back to form two groups of vertical and symmetrically distributed holes three. The lifting frame 76 is an L-shaped structure, and its side is provided with longitudinally distributed holes four. The lifting frame 76 can move forward and backward and up and down on the vertical frame 73, thereby facilitating fine-tuning the position of the receiver 71.

[0032] The limiting mechanism 8 includes a base frame 81 installed below the docking plate 3, an opening is opened on the base frame 81, and widening plates are provided at the left and right ends of the base frame 81, and a limiting spring 86 is connected below the widening plate. The bottom end of the limiting spring 86 is connected to a lifting plate 84, which is placed in the opening, and an electric push rod 82 is installed below the lifting plate 84. The push rod of the electric push rod 82 is above the lifting plate 84 and connected to the limiting plate 83. The extension and retraction of the electric push rod 82 can make the limiting plate 83 move up and down, thereby limiting the cleaning robot 5 or making it move on the photovoltaic panel 1 to clean;

[0033] A lifting opening 31 is provided on the docking plate 3, and a limiting plate 83 is placed in the lifting opening 31, and the top of the limiting plate 83 is above the docking plate 3. The limiting plate 83 can limit the cleaning robot 5 so that it is on the docking plate 3 and cannot move, thereby avoiding the movement of the cleaning robot 5 caused by strong winds.

[0034] A guide rod 85 is provided on the widening plate, and the lifting plate 84 is slidably sleeved with the widening plate to facilitate guiding the up and down movement of the lifting plate 84;

[0035] The end of the limit plate 83 close to the photovoltaic panel 1 is designed with an inclined surface, and the lifting plate 84 is suspended on the base frame 81 by a limit spring 86. When the electric push rod 82 fails and cannot be used, the rollers of the cleaning robot 5 can move along the inclined surface and make the limit plate 83 and the lifting plate 84 move downward as a whole, so that the cleaning robot 5 can still enter the docking plate 3. At this time, the cleaning robot 5 cannot be removed and can only be used after maintenance, which improves safety.

[0036] The implementation principle of the photovoltaic cleaning robot stop sensing device in the embodiment of the present application is as follows: in actual use, the cleaning robot 5 can move back and forth above the photovoltaic panel 1, thereby cleaning its surface, and the receiver 71 and the stop detection head 6 provided on the photovoltaic rack can detect the position of the cleaning robot 5, thereby cleaning the photovoltaic panel 1 in all directions, and at the same time, the cleaning robot 5 can be separated from the photovoltaic panel 1 and docked above the docking plate 3, and cannot move under the action of the limit mechanism 8;

[0037] When installing the receiver 71, first place the mounting bracket 74 on the longitudinal rod 21 and secure the connecting bracket 72 thereon with bolts. The mounting bracket 74 and the connecting bracket 72 are then secured. The lifting plate 84 is then secured to the vertical bracket 73 with bolts. Finally, the receiver 71 is secured to the lifting bracket 76 via the fixing bracket 75.

[0038] By setting up the position sensing structure 7, the mounting frame 74 and the connecting frame 72 thereof enable the position of the entire position sensing structure 7 to be adjusted to a large extent, and the provision of the lifting plate 84 and the vertical frame 73 enables the position of the upper receiver 71 to be finely adjusted up and down and forward and backward, thereby aligning the receiver 71 with the stop detection head 6, facilitating subsequent stop sensing and facilitating the installation and position adjustment of the receiver 71;

[0039] By providing the docking plate 3, the cleaning robot 5 has a larger placement space, does not block the photovoltaic panel 1, and does not reduce its light conversion efficiency. In addition, the limiting mechanism 8 is provided to limit the cleaning robot 5 so that it is on the docking plate 3 and cannot move, thereby preventing the cleaning robot 5 from moving in windy weather.

[0040] The lifting plate 84 is suspended on the base frame 81 by a limit spring 86. When the electric push rod 82 fails and cannot be used, the rollers of the cleaning robot 5 can move along the inclined surface and make the limit plate 83 and the lifting plate 84 move downward as a whole, so that the cleaning robot 5 can still enter the docking plate 3. At this time, the cleaning robot 5 cannot be removed and can only be used after maintenance, which improves safety.

[0041] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A photovoltaic cleaning robot stop sensing device, comprising a plurality of photovoltaic panels (1) mounted in parallel, a cleaning robot (5) being arranged above the photovoltaic panels (1) for left and right movement, an extension frame (2) being respectively arranged at the left and right ends of the photovoltaic panels (1), a stop plate (3) being installed at the front and rear ends of each of the extension frames (2) close to the photovoltaic panels (1), a limiting mechanism (8) being arranged on the stop plate (3), a blocking plate (4) being arranged at the end of the stop plate (3) away from the photovoltaic panels (1), and a rubber pad being arranged on the inner side of the blocking plate (4); The left and right sides of the cleaning robot (5) are both provided with a stop detection head (6), the left and right sides of the extension frame (2) are both provided with a longitudinal rod (21), a position sensing structure (7) is provided above the longitudinal rod (21), and the position sensing structure (7) includes a mounting frame (74) mounted on the longitudinal rod (21), a connecting frame (72) is mounted above the mounting frame (74), a vertical frame (73) is welded above the connecting frame (72), a lifting frame (76) is mounted on the vertical frame (73), a fixing frame (75) is mounted on the lifting frame (76), and a receiver (71) is installed in the fixing frame (75).

2. A photovoltaic cleaning robot shutdown sensing device according to claim 1, characterized in that: The upper surfaces of the plurality of docking plates (3) are flush with the upper surface of the photovoltaic panel (1), and the outward-facing surface of the docking plates (3) is flush with the outward-facing surface of the photovoltaic panel (1).

3. A photovoltaic cleaning robot shutdown sensing device according to claim 1, characterized in that: The left and right sides of the mounting frame (74) are bent to form a horizontal portion, and a longitudinally distributed hole 1 is opened on the horizontal portion. The left and right sides above the connecting frame (72) are provided with a transversely distributed hole 2.

4. A photovoltaic cleaning robot shutdown sensing device according to claim 3, characterized in that: The vertical frame (73) is penetrated from front to back to form two groups of vertical and symmetrically distributed holes three, and the lifting frame (76) is an L-shaped structure, and its side is provided with longitudinally distributed holes four.

5. A photovoltaic cleaning robot shutdown sensing device according to claim 1, characterized in that: The limiting mechanism (8) includes a base frame (81) installed below the docking plate (3), an opening is provided on the base frame (81), and widening plates are provided at the left and right ends of the base frame (81), a limiting spring (86) is connected below the widening plate, a lifting plate (84) is connected to the bottom end of the limiting spring (86), the lifting plate (84) is placed in the opening, and an electric push rod (82) is installed below the lifting plate (84), and the push rod of the electric push rod (82) is located above the lifting plate (84) and connected to the limiting plate (83); A lifting opening (31) is provided on the docking plate (3), the limiting plate (83) is placed in the lifting opening (31), and the top end of the limiting plate (83) is located above the docking plate (3).

6. A photovoltaic cleaning robot shutdown sensing device according to claim 5, characterized in that: The widening plate is provided with a guide rod (85), and the lifting plate (84) is slidably sleeved with the widening plate to facilitate guiding the up and down movement of the lifting plate (84); The end of the limiting plate (83) close to the photovoltaic panel (1) is designed to be inclined.

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