Photovoltaic power generation charging pile

Abstract

The invention discloses a photovoltaic power generation charging pile which comprises a charging pile body, a photovoltaic panel arranged outside the charging pile body and a control system arranged inside the charging pile body. The charging pile further comprises an angle adjusting mechanism and a cleaning mechanism. The angle adjusting mechanism is arranged at the top of the charging pile body, electrically connected with the control system and used for adjusting the angle of the photovoltaic panel arranged above the angle adjusting mechanism. The cleaning mechanism is arranged on the surface of the photovoltaic panel, is connected with the angle adjusting mechanism in a matched mode and is used for cleaning the photovoltaic panel. According to the photovoltaic power generation charging pile, the angle of the photovoltaic panel can be automatically adjusted, angle adjustment and surface cleaning of the photovoltaic panel are integrated into one mechanism, and the adjusting effect, the cleaning effect and the energy utilization efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a photovoltaic power generation charging pile. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. It is mainly composed of three parts: solar panels, controllers and inverters. The main components are made of electronic components. Solar cells are packaged and protected after being connected in series to form large-area solar cell modules, which are then combined with power controllers and other components to form photovoltaic power generation devices. The function of charging piles is similar to that of gas pumps in gas stations. They can be fixed on the ground or walls and installed in public buildings and residential parking lots or charging stations. They can charge various types of electric vehicles according to different voltage levels, and can also have additional functions such as lighting and media communication.

[0003] Most of the existing charging piles use solar photovoltaic panels for charging. When in use, a strong light source is required to irradiate the internal batteries. Therefore, it is necessary to adjust the angle at which the photovoltaic panels receive the light source. In addition, dust will fall on the surface of the photovoltaic modules in open fields. The dust will reduce the amount of solar radiation irradiating the battery surface, causing the heat transfer form of the product surface to change. At the same time, the dust absorbs solar radiation and converts it into its own heat energy, blocking the heat dissipation of the cover glass of the photovoltaic module. Therefore, the surface of the photovoltaic panel needs to be cleaned in time.

[0004] However, the angle adjustment of the existing photovoltaic charging piles on the market is inconvenient and requires manual operation, with low adjustment efficiency. In addition, the auxiliary cleaning structure is easily stuck and cannot be released after dust accumulation, making it impossible to effectively clean the photovoltaic panels. Summary of the invention

[0005] The present invention provides a photovoltaic power generation charging pile to solve the problems of low photovoltaic panel angle adjustment and cleaning efficiency of the photovoltaic power generation charging pile in the prior art.

[0006] The embodiment of the present invention provides a photovoltaic power generation charging pile, comprising a charging pile body, a photovoltaic panel arranged outside the charging pile body, and a control system arranged inside the charging pile body, and also comprising an angle adjustment mechanism and a cleaning mechanism;

[0007] The angle adjustment mechanism is arranged on the top of the charging pile body and is electrically connected to the control system, and is used to adjust the angle of the photovoltaic arranged above the angle adjustment machine;

[0008] The cleaning mechanism is arranged on the surface of the photovoltaic panel and is connected with the angle adjustment mechanism for cleaning the photovoltaic panel.

[0009] Preferably, the angle adjustment mechanism comprises an active structure, a driven structure and a connecting structure which are mechanically connected in sequence;

[0010] The active structure comprises an active rod, a first worm, a first conical friction wheel and a motor, wherein the first worm is arranged on the active rod, the first conical friction wheel is arranged at both ends of the active rod, and the motor is used to drive the first worm to rotate;

[0011] The driven structure comprises a driven rod, a second worm and a rack, wherein the second worm is arranged on the driven rod, the first worm is used to drive the second worm to rotate forward and reversely, and the rack moves horizontally through the driving of the second worm;

[0012] The connecting structure includes a mounting frame, a connecting shaft, a connecting rod and a gear. The mounting frame is vertically fixed on the top of the charging pile body. The connecting shaft is located on the top of the mounting frame and is rotatably connected to the mounting frame. One end of the connecting rod is connected to the connecting shaft, and the other end of the connecting rod is connected to the middle of the bottom of the photovoltaic panel. The gear is meshed with the rack and fixedly connected to the connecting shaft.

[0013] Preferably, the angle adjustment mechanism further includes a support plate and a first spring;

[0014] The two support plates are vertically arranged on the top of the charging pile body, and are rotatably connected to the active rod and connected to the keys at both ends of the second worm;

[0015] The first spring is located at two ends of the second worm and is fixedly connected to the support plate.

[0016] Preferably, the cleaning mechanism comprises two screws, a rotating shaft, a gear assembly, at least two sliders, a cleaning rod and a second conical friction wheel;

[0017] The two screw rods are respectively located above the two sides of the photovoltaic panel, the screw rods are connected to the rotating shaft through the gear assembly, each screw rod is provided with a slide, and the positions of the two slide blocks correspond to each other;

[0018] The cleaning rod is located between the two sliding blocks, and a brush is provided at the bottom of the cleaning rod for cleaning the photovoltaic panel;

[0019] The second conical friction wheel is fixedly arranged at the middle part of the rotating shaft, and is used for being matched and connected with the first conical friction wheel.

[0020] Preferably, the cleaning mechanism further comprises a support;

[0021] The screw rod is connected to the photovoltaic panel through the support frame, and the rotating shaft is located below the screw rod and is rotatably connected to the support frame.

[0022] Preferably, the lead of the second worm is smaller than the lead of the first worm.

[0023] Preferably, the angle adjustment mechanism further includes a second spring;

[0024] One end of the second spring is connected to the first conical friction wheel, and the other end of the second spring is connected to the active rod.

[0025] Preferably, an MPPT controller is provided in the photovoltaic panel, and the MPPT controller is electrically connected to the control system.

[0026] Preferably, the charging pile also includes a battery, and the battery is electrically connected to the photovoltaic panel, the charging pile body and the motor.

[0027] Compared with the prior art, a photovoltaic charging pile provided in an embodiment of the present invention can automatically adjust the angle of the photovoltaic panel, and integrate the angle adjustment and surface cleaning of the photovoltaic panel into a set of mechanisms, realizing two sets of actions through one power source, thereby improving the angle adjustment effect and the cleaning effect. Part of the photovoltaic power is allocated to the motor for angle adjustment and cleaning, and the other part is supplied to the charging pile for charging, thereby greatly improving the energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical features of the embodiments of the present invention, the drawings required for use in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the use status of a photovoltaic power generation charging pile provided by an embodiment of the present invention;

[0030] Figure 2 It is a partially enlarged schematic diagram of a photovoltaic power generation charging pile provided by an embodiment of the present invention;

[0031] Figure 3 It is a side view of a photovoltaic power generation charging pile provided by an embodiment of the present invention;

[0032] Figure 4 is a front view of a photovoltaic power generation charging pile provided by an embodiment of the present invention;

[0033] Figure 5 is a top view of a photovoltaic power generation charging pile provided by an embodiment of the present invention;

[0034] Figure 6 It is a schematic diagram of a first conical friction wheel of a photovoltaic power generation charging pile provided in an embodiment of the present invention.

[0035] Explanation of the reference numerals in the accompanying drawings: 1. Charging pile body; 2. Photovoltaic panel; 3. Angle adjustment mechanism; 301. Driven rod; 302. Second worm; 303. First spring; 304. Rack; 305. Active rod; 306. First worm; 307. Connecting shaft; 308. Gear; 309. Connecting rod; 310. Support plate; 311. Mounting frame; 312. First conical friction wheel; 313. Motor; 314. Second spring; 4. Cleaning mechanism; 401. Screw; 402. Slider; 403. Rotating shaft; 404. Support frame; 405. Second conical friction wheel; 406. Cleaning rod; 407. Gear assembly. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1 , a photovoltaic power generation charging pile, comprising a charging pile body 1, a photovoltaic panel 2 arranged outside the charging pile body 1, and a control system arranged inside the charging pile body 1, and also comprising an angle adjustment mechanism 3 and a cleaning mechanism 4;

[0038] The angle adjustment mechanism 3 is arranged on the top of the charging pile body 1 and is electrically connected to the control system, and is used to adjust the angle of the photovoltaic panel 2 arranged above the angle adjustment mechanism 3;

[0039] The cleaning mechanism 4 is disposed on the surface of the photovoltaic panel 2 and is connected to and cooperates with the angle adjustment mechanism 3 for cleaning the photovoltaic panel 2 .

[0040] Preferably, see Figure 2 and Figure 4 , Figure 2 for Figure 1 The partially enlarged schematic diagram at A in the middle shows that the angle adjustment mechanism 3 includes an active structure, a driven structure and a connecting structure that are mechanically connected in sequence;

[0041] The active structure includes an active rod 305, a first worm 306, a first conical friction wheel 312 and a motor 313, wherein the first worm 306 is arranged on the active rod 305, the first conical friction wheel 312 is arranged at both ends of the active rod 305, and the motor 313 is used to drive the first worm 306 to rotate;

[0042] The driven structure includes a driven rod 301, a second worm 302 and a rack 304, wherein the second worm 302 is arranged on the driven rod 301, the first worm 306 is used to drive the second worm 302 to rotate forward and reversely, and the rack 304 is driven by the second worm 302 to move horizontally;

[0043] The connecting structure includes a mounting frame 311, a connecting shaft 307, a connecting rod 309 and a gear 308. The mounting frame 311 is vertically fixed on the top of the charging pile body 1. The connecting shaft 307 is located on the top of the mounting frame 311 and is rotatably connected to the mounting frame 311. One end of the connecting rod 309 is connected to the connecting shaft 307, and the other end of the connecting rod 309 is connected to the middle of the bottom of the photovoltaic panel 2. The gear 308 is meshed with the rack 304 and is fixedly connected to the connecting shaft 307.

[0044] In one embodiment of the above scheme, the photovoltaic panel 2 is located on the top of the charging pile body 1 for photovoltaic power generation. The electricity generated by the photovoltaic panel 2 enters the battery and is supplied to the charging pile body 1 and the angle adjustment mechanism 3 respectively. The control system is arranged inside the charging pile body 1 to control the power distribution of the entire charging pile and the angle adjustment of the photovoltaic panel 2.

[0045] Specifically, the angle adjustment mechanism 3 includes an active structure, a driven structure and a connecting structure which are mechanically connected in sequence. The active structure includes an active rod 305, a first worm 306, a first conical friction wheel 312 and a motor 313. The driven structure includes 301, a second worm 302 and a rack 304. The first worm 306 and the second worm 302 cooperate with each other. The rotation of the first worm 306 drives the second worm 302 to move horizontally along the support plate 310, thereby driving the rack 304 to move. The rack 304 meshes with the gear 308 of the connecting structure, thereby completing the drive of the gear 308. The gear 308 drives the connecting shaft 307 to rotate. The connecting shaft 307 is rotationally connected to the mounting frame 311, and is connected to the photovoltaic panel 2 through the connecting rod 309. Therefore, when the connecting shaft 307 rotates, it will drive the photovoltaic panel 2 to rotate, thereby completing the angle adjustment.

[0046] It can be understood that the rotation of the active rod 305 is completed by the motor 313 and the gear assembly 407. When the motor 313 rotates, the gear assembly 407 distributes the rotation to the active rod 305 and the first worm 306. After the first worm 306 rotates, it drives the second worm 302 to move, and then drives the gear 308 to rotate. Therefore, by controlling the speed of the motor 313 through the control system, the photovoltaic panel 2 can be accurately adjusted in angle.

[0047] Preferably, see Figure 2 , the angle adjustment mechanism 3 further includes a support plate 310 and a first spring 303;

[0048] The two support plates 310 are vertically arranged on the top of the charging pile body 1, and are rotatably connected to the active rod 305, and are key-connected to both ends of the second worm 302;

[0049] The first spring 303 is located at two ends of the second worm 302 and is fixedly connected to the support plate 310 .

[0050] In one embodiment of the above scheme, the first springs 303 are sleeved on both ends of the second worm 302. When the second worm 302 is driven to move by the first worm 306, the spring on one side will be squeezed until the second worm 302 is disengaged from the first worm 306. At this time, the driven rod 301 no longer moves, the rack 304 is locked with the gear 308, the photovoltaic panel 2 is adjusted to the maximum inclination angle, and the first worm 306 continues to rotate to complete the subsequent cleaning of the photovoltaic panel 2 without affecting the angle of the photovoltaic panel 2. When the first worm 306 rotates in the opposite direction, under the action of the first spring 303, the second worm 302 is reset and maintains cooperation with the first worm 306, so as to facilitate the first worm 306 to drive the second worm 302 to move in the opposite direction after the reverse rotation, thereby completing the angle reset and adjustment of the photovoltaic panel 2.

[0051] Preferably, see Figure 3 , Figure 4 and Figure 5 , the cleaning mechanism 4 includes two screw rods 401, a rotating shaft 403, a gear assembly 407, at least two sliders 402, a cleaning rod 406 and a second conical friction wheel 405;

[0052] The two screw rods 401 are respectively located above the two sides of the photovoltaic panel 2, and the screw rods 401 are connected to the rotating shaft 403 through the gear assembly 407. A slider 402 is provided on each screw rod 401, and the positions of the two sliders 402 correspond to each other.

[0053] The cleaning rod 406 is located between the two sliders 402, and a brush is provided at the bottom of the cleaning rod 406 for cleaning the photovoltaic panel 2;

[0054] The second conical friction wheel 405 is fixedly disposed at the middle of the rotating shaft 403 for being connected with the first conical friction wheel 312 .

[0055] In one embodiment of the above scheme, after the active rod 305 and the first worm gear 306 rotate continuously, the photovoltaic panel 2 is adjusted to a maximum inclination angle in one direction along with the gear 308 and the rack 304. At this time, the second conical friction wheel 405 under the photovoltaic panel 2 will abut against the first conical friction wheel 312 on the active rod 305. Since the continuous rotation of the active rod 305 will drive the integrated first conical friction wheel 312 to rotate continuously, when the first conical friction wheel 312 abuts against the second conical friction wheel 405, the second conical friction wheel 405 will rotate accordingly.

[0056] Furthermore, the rotation of the second conical friction wheel 405 will drive the rotating shaft 403 to rotate, and then drive the lead screw 401 to rotate through the gear assembly 407, and then drive the slider 402 that cooperates with the lead screw to move, and drive the cleaning rod 406 through the slider 402 to clean the surface of the photovoltaic panel 2. Since the cleaning process occurs when the inclination angle of the photovoltaic panel 2 is the largest, the dust after cleaning can slide smoothly along the inclined surface at this time and will not accumulate on the photovoltaic panel 2.

[0057] It is understandable that when the photovoltaic panel 2 adjusts its angle according to the sunlight, it will reach the maximum angle twice a day, so the photovoltaic panel 2 can be cleaned twice a day, which increases the cleaning frequency. At the same time, the cleaning mechanism 4 and the angle adjustment mechanism 3 share a motor 313, reducing energy consumption.

[0058] Preferably, see Figure 4 , the cleaning mechanism 4 also includes a support frame 404;

[0059] The screw rod 401 is connected to the photovoltaic panel 2 through the support frame 404 , and the rotation shaft 403 is located below the screw rod 401 and is rotationally connected to the support frame 404 .

[0060] Preferably, the lead of the second worm 302 is smaller than the lead of the first worm 306 .

[0061] Preferably, see Figure 6 , the angle adjustment mechanism 3 also includes a second spring 314;

[0062] One end of the second spring 314 is connected to the first conical friction wheel 312 , and the other end of the second spring 314 is connected to the active rod 305 .

[0063] In one embodiment of the above scheme, the angle adjustment mechanism 3 also includes a second spring 314, and the first conical friction wheel 312 is connected to the active rod 305 through a spline and the second spring 314. When the active rod 305 and the first worm 306 rotate, the first conical friction wheel 312 is synchronously driven to rotate, and the first conical friction wheel 312 is connected to the active rod 305 through the second spring 314, so that the first conical friction wheel 312 can move and shrink in the axial direction. When the second conical friction wheel 405 is in contact with the first conical friction wheel 312, the second spring 314 can be used for buffering to ensure that the first conical friction wheel 312 is tightly pressed against the second conical friction wheel 405 to avoid slipping.

[0064] Preferably, an MPPT controller is provided in the photovoltaic panel 2, and the MPPT controller is electrically connected to the control system.

[0065] In one embodiment of the above scheme, an MPPT controller, i.e., maximum power point tracking, is provided in the photovoltaic panel 2. When the sunshine conditions change, the load curve that can provide the maximum power transmission efficiency also changes accordingly. If the load can be adjusted to match the load curve with the highest power transmission efficiency, the system will have the best efficiency. In conjunction with the light sensor, the angle of the photovoltaic panel 2 can be intelligently adjusted to effectively utilize solar energy and improve power generation efficiency.

[0066] Preferably, the charging pile further includes a battery, and the battery is electrically connected to the photovoltaic panel 2 , the charging pile body 1 and the motor 313 .

[0067] To sum up, the photovoltaic power generation charging pile provided by the present invention can automatically adjust the angle of the photovoltaic panel, and integrate the angle adjustment and surface cleaning of the photovoltaic panel into a set of mechanisms, realizing two sets of actions through one power source, thereby improving the angle adjustment effect and the cleaning effect. Part of the photovoltaic power generation is allocated to the motor for angle adjustment and cleaning, and the other part is supplied to the charging pile for charging, which greatly improves the energy utilization efficiency.

[0068] The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. It should be pointed out that for those skilled in the art, several equivalent obvious variations and / or equivalent substitutions can be made without departing from the technical principles of the present invention. These obvious variations and / or equivalent substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A photovoltaic power generation charging pile, comprising a charging pile body (1), a photovoltaic panel (2) arranged outside the charging pile body (1), and a control system arranged inside the charging pile body (1), characterized in that: It also includes an angle adjustment mechanism (3) and a cleaning mechanism (4); The angle adjustment mechanism (3) is arranged on the top of the charging pile body (1) and is electrically connected to the control system, and is used to adjust the angle of the photovoltaic panel (2) arranged above the angle adjustment mechanism (3); The cleaning mechanism (4) is arranged on the surface of the photovoltaic panel (2) and is connected to the angle adjustment mechanism (3) for cleaning the photovoltaic panel (2).

2. The photovoltaic charging pile according to claim 1, characterized in that: The angle adjustment mechanism (3) comprises an active structure, a driven structure and a connecting structure which are mechanically connected in sequence; The active structure comprises an active rod (305), a first worm (306), a first conical friction wheel (312) and a motor (313), wherein the first worm (306) is arranged on the active rod (305), the first conical friction wheel (312) is arranged at two ends of the active rod (305), and the motor (313) is used for driving the first worm (306) to rotate; The driven structure comprises a driven rod (301), a second worm (302) and a rack (304); the second worm (302) is arranged on the driven rod (301); the first worm (306) is used to drive the second worm (302) to rotate forward and reverse; and the rack (304) is driven by the second worm (302) to move horizontally; The connection structure comprises a mounting frame (311), a connecting shaft (307), a connecting rod (309) and a gear (308); the mounting frame (311) is vertically fixed to the top of the charging pile body (1); the connecting shaft (307) is located at the top of the mounting frame (311) and is rotatably connected to the mounting frame (311); one end of the connecting rod (309) is connected to the connecting shaft (307); the other end of the connecting rod (309) is connected to the middle of the bottom of the photovoltaic panel (2); the gear (308) is meshed with the rack (304) and is fixedly connected to the connecting shaft (307).

3. The photovoltaic charging pile according to claim 2, characterized in that: The angle adjustment mechanism (3) further comprises a support plate (310) and a first spring (303); The two support plates (310) are vertically arranged on the top of the charging pile body (1), and are rotatably connected to the active rod (305), and are key-connected to both ends of the second worm gear (302); The first spring (303) is located at both ends of the second worm (302) and is fixedly connected to the support plate (310).

4. The photovoltaic charging pile according to claim 2, characterized in that: The cleaning mechanism (4) comprises two screw rods (401), a rotating shaft (403), a gear assembly (407), at least two sliders (402), a cleaning rod (406) and a second conical friction wheel (405); The two screw rods (401) are respectively located above the two sides of the photovoltaic panel (2); the screw rods (401) are connected to the rotating shaft (403) via the gear assembly (407); a slider (402) is provided on each screw rod (401); and the positions of the two sliders (402) correspond to each other; The cleaning rod (406) is located between the two sliding blocks (402), and a brush is provided at the bottom of the cleaning rod (406) for cleaning the photovoltaic panel (2); The second conical friction wheel (405) is fixedly arranged at the middle part of the rotating shaft (403) and is used for being matched and connected with the first conical friction wheel (312).

5. The photovoltaic power generation charging pile according to claim 4, characterized in that: The cleaning mechanism (4) further comprises a support frame (404); The screw rod (401) is connected to the photovoltaic panel (2) via the support frame (404); the rotating shaft (403) is located below the screw rod (401) and is rotationally connected to the support frame (404).

6. The photovoltaic power generation charging pile according to claim 2, characterized in that: The lead of the second worm (302) is smaller than the lead of the first worm (306).

7. The photovoltaic charging pile according to claim 2, characterized in that: The angle adjustment mechanism (3) further includes a second spring (314); One end of the second spring (314) is connected to the first conical friction wheel (312), and the other end of the second spring (314) is connected to the active rod (305).

8. The photovoltaic charging pile according to claim 1, characterized in that: The photovoltaic panel (2) is provided with an MPPT controller, and the MPPT controller is electrically connected to the control system.

9. The photovoltaic power generation charging pile according to claim 2, characterized in that: The charging pile also includes a storage battery, which is electrically connected to the photovoltaic panel (2), the charging pile body (1) and the motor (313).

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