A charging device for a cleaning robot in a photovoltaic power station

Abstract

This utility model relates to the field of photovoltaic operation and maintenance equipment technology, specifically to a charging device for a cleaning robot in a photovoltaic power station, effectively solving the problems existing in the prior art. It includes a cleaning robot, a stationary contact assembly, and a moving contact assembly. The stationary contact assembly includes a protective box and a charging terminal installed inside the protective box. The moving contact assembly includes a protective cover fixedly connected to the cleaning robot and a contact terminal installed on the lower side of the protective cover. The cleaning robot moves towards the stationary contact assembly, causing the contact terminal to contact the charging terminal to achieve power transmission. When the cleaning robot approaches the parking frame, the protective cover in the moving contact assembly pushes open the spring door in the stationary contact assembly. Simultaneously, the protective cover acts as a guide, ensuring accurate and complete contact between the moving and stationary contacts, thus charging the cleaning robot. When the cleaning robot leaves, the spring door of the stationary contact assembly automatically closes, effectively protecting the stationary contact assembly.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic operation and maintenance equipment technology, and in particular to a charging device for a photovoltaic power station cleaning robot. Background Technology

[0002] Photovoltaic panels are one of the core components of photovoltaic power generation. Their proper use relies on operation and maintenance. Ensuring proper operation and maintenance significantly extends the lifespan of photovoltaic panels and reduces the occurrence of malfunctions. Previously, photovoltaic panel operation and maintenance was mostly done manually, relying on visual inspection of the panels. This not only consumed considerable manpower and resources but also failed to guarantee consistent results. Therefore, using robots that operate automatically on the photovoltaic panels to perform maintenance will greatly improve efficiency and effectively save manpower.

[0003] Most current photovoltaic (PV) panel cleaning robots are equipped with solar PV panels that charge while operating. However, this system has drawbacks: the PV panels increase the robot's weight and consume its own electricity; furthermore, the large windward area of ​​the PV panels increases the robot's wind resistance. In strong winds, the robot could be blown off the PV panels, causing economic losses and safety accidents. Therefore, there is an urgent need for a residing contact charging device to expand the application scenarios of cleaning robots. Summary of the Invention

[0004] In view of the above situation and in order to make up for the shortcomings of the existing technology, the purpose of this utility model is to provide a charging device for a photovoltaic power station cleaning robot, which effectively solves the problem of time-consuming and labor-intensive material transportation methods.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is:

[0006] A charging device for a cleaning robot in a photovoltaic power station includes a cleaning robot, a stationary contact assembly, and a moving contact assembly. The stationary contact assembly includes a protective box and a charging terminal installed inside the protective box.

[0007] The moving contact assembly includes a protective cover fixedly connected to the cleaning robot and a contact end installed on the lower side of the protective cover; the cleaning robot moves towards the stationary contact assembly so that the contact end contacts the charging end to realize the transfer of electrical energy;

[0008] A spring door that can be opened and closed is installed at the opening of the protective box and the moving contact assembly. The two sides of the protective cover and the protective box are inclined inward.

[0009] Preferably, the protective box has legs fixedly connected to the corresponding two sides at the lower end, and key-shaped holes are opened on both sides of the surface of the legs.

[0010] Preferably, the charging terminal includes a bracket fixed inside the protective box and two stationary contacts on the upper side of the bracket. A rotating shaft is fixedly connected to the upper end of the bracket, and a stationary contact insulating fixing plate is rotatably connected to the surface of the rotating shaft. The stationary contacts are respectively fixedly connected to both ends of the stationary contact insulating fixing plate.

[0011] Preferably, the contact end includes two moving contacts, and the other end of the two moving contacts is fixedly connected to a moving contact insulating fixing plate, which is fixedly connected to the protective cover.

[0012] Preferably, the protective cover has a structure with an opening at the lower end, and the moving contact extends to the lower side of the protective cover through the opening at the lower end of the protective cover.

[0013] Preferably, the end of the moving contact that contacts the stationary contact has an arc-shaped structure.

[0014] Preferably, the spring door includes an opening and closing door and a mounting shaft fixedly connected to one side of the upper and lower ends of the opening and closing door. The mounting shaft is rotatably connected to the opening of the protective box, and an elastic torsion component is sleeved on the surface of the mounting shaft. The two ends of the elastic torsion component are fixedly connected to the opening and closing door and the inner wall of the protective box, respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] When the cleaning robot approaches the parking frame, the protective cover in the moving contact assembly pushes open the spring door in the stationary contact assembly. At the same time, the protective cover acts as a guide, ensuring that the moving and stationary contacts make accurate and complete contact, thus charging the cleaning robot. This eliminates the need for the cleaning robot to carry solar photovoltaic panels for power, reducing wind resistance and its own weight, and improving the stability of the cleaning robot during operation. After charging is complete, when the cleaning robot drives away, the spring door of the stationary contact assembly automatically closes, effectively protecting the stationary contact assembly. Attached Figure Description

[0017] Figure 1 This is a first schematic diagram of the working state of this utility model.

[0018] Figure 2 This is a second schematic diagram of the working state of this utility model.

[0019] Figure 3 This is a schematic diagram of the static contact assembly structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the static contact mounting structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the moving contact structure of this utility model.

[0022] Figure 6This is a schematic diagram of the moving contact assembly structure of this utility model.

[0023] Figure 7 This is a schematic diagram of the protective cover structure of this utility model.

[0024] Figure 8 This is a schematic diagram of the spring door structure of this utility model.

[0025] Figure label:

[0026] 1-Cleaning robot, 2-Static contact assembly, 3-Moving contact assembly, 21-Static contact insulation fixing plate, 22-Static contact, 23-Protective box, 24-Spring door, 25-Bracket, 26-Rotating shaft, 27-Key hole, 28-Spring torsion component, 31-Moving contact insulation fixing plate, 32-Protective cover, 33-Moving contact. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the implementations of the base model disclosed below.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0030] like Figures 1-8 As shown, a photovoltaic power station cleaning robot charging device includes a cleaning robot 1, a stationary contact assembly 2 and a moving contact assembly 3. A parking frame is installed at the edge of the photovoltaic power station. The stationary contact assembly 2 is installed on the parking frame, and the moving contact assembly 3 is fixedly connected to the outer side of the cleaning robot 1. The stationary contact assembly 2 includes a protective box 23 and a charging terminal installed inside the protective box 23.

[0031] The moving contact assembly 3 includes a protective cover 32 fixedly connected to the cleaning robot 1 and a contact end installed on the lower side of the protective cover 32; the cleaning robot 1 moves towards the stationary contact assembly 2 so that the contact end contacts the charging end to realize the transmission of electrical energy and charge the cleaning robot 1.

[0032] A spring door 24, which can open and close relative to each other, is installed at the opening of the protective box 23 corresponding to the moving contact assembly 3. When the cleaning robot 1 approaches the parking frame, the end of the protective cover 32 in the moving contact assembly 3 pushes open the spring door 24 in the stationary contact assembly 2, so that the charging end and the contact end make contact, and the cleaning robot 1 stops charging. After charging is completed, when the cleaning robot 1 drives away, the spring door 24 of the stationary contact 22 device automatically springs back and closes, so as to protect the charging device. In order to enable the moving contact 33 and the stationary contact 22 to connect accurately and effectively, the two sides of the protective cover 32 corresponding to the protective box 23 are shaped like a spring door. The inclined surface shape, which slopes inward, makes the end a pointed structure, which makes it easy to push the spring door 24 to open. The lower end of the protective box 23 is fixedly connected to the corresponding two sides of the support. The support surface has key holes 27 on both sides. When installing the protective box 23, the pin passes through the key holes 27 and is connected to the parking frame. The pin and the parking frame are in a fixed connection relationship. The support is pressed by the end of the pin, so that the protective box 23 remains stable after installation. However, the length of the key hole 27 is greater than the diameter of the pin, so that the protective box 23 can move along the length of the key hole 27 when subjected to external force, and its movement range is only within the length range of the key hole 27.

[0033] During the process of the protective cover 32 pushing the spring door 24, if the protective cover 32 and the opening of the protective box 23 are misaligned, the inclined shape of the corresponding end of the protective cover 32 and the protective box 23 can play a guiding and pushing role, so that the protective box 23 will produce a corresponding lateral displacement, so that the protective cover 32 and the opening of the protective box 23 can be connected, effectively realizing the connection between the charging end and the contact end.

[0034] Furthermore, the charging terminal includes a bracket 25 fixed inside the protective box 23 and two stationary contacts 22 on the upper side of the bracket 25. The stationary contacts 22 are electrically connected to the power supply terminal, and electrical energy is transmitted through the stationary contacts 22. A rotating shaft 26 is fixedly connected to the upper end of the bracket 25. A stationary contact insulating fixing plate 21 is rotatably connected to the surface of the rotating shaft 26. The stationary contacts 22 are respectively fixedly connected to both ends of the stationary contact insulating fixing plate 21. The stationary contact insulating fixing plate 21 is located between the two stationary contacts 22, which has an insulating effect and prevents the two stationary contacts 22 from being short-circuited. Under the rotation of the rotating shaft 26, the two stationary contacts 22 can rotate with the stationary contact 22 insulating plate around the axis of the rotating shaft 26.

[0035] The contact end includes two moving contacts 33, which are electrically connected to the power supply of the cleaning robot 1. The other end of the two moving contacts 33 is fixedly connected to a moving contact insulating fixing plate 31, which is fixedly connected to the protective cover 32. The moving contact insulating fixing plate 31 is used to connect the moving contacts 33 to the protective cover 32 without causing a guiding situation. When the protective cover 32 pushes open the spring door 24 to connect the moving contacts 33 to the stationary contacts 22, in order to ensure that the corresponding moving contacts 33 and stationary contacts 22 can be quickly connected, a thrust can be generated when a single moving contact 33 contacts a corresponding single stationary contact 22 to make the stationary contact 22 rotate, so that the moving contacts 33 and stationary contacts 22 that have not yet contacted can quickly make contact, ensuring the sensitivity of power transmission when the two moving contacts 33 and the two stationary contacts 22 are in contact.

[0036] Furthermore, in order to enable the moving contact 33 to effectively contact the stationary contact 22, quickly achieve circuit connection and disconnection, and realize stable power transmission, the protective cover 32 has a structure with an opening at the lower end. The moving contact 33 extends to the lower side of the protective cover 32 through the opening at the lower end of the protective cover 32. The end of the moving contact 33 that contacts the stationary contact 22 has an arc-shaped structure. When the protective cover 32 pushes open the spring door 24, the protruding end of the arc-shaped structure of the moving contact 33 contacts the stationary contact 22 in a point form, realizing an effective and reliable contact connection, ensuring a low-resistance path, reducing heat generation and energy loss, and concentrating the arc energy when disconnected, extinguishing it quickly, and reducing the risk of contact burnout.

[0037] The spring door 24 includes an opening and closing door and mounting shafts fixedly connected to one side of the upper and lower ends of the opening and closing door. The mounting shafts are rotatably connected to the openings of the protective box 23. Elastic torsion components are fitted onto the surfaces of the mounting shafts. The two ends of the elastic torsion components are fixedly connected to the opening and closing door and the inner wall of the protective box 23, respectively. The elastic torsion components store force when the opening and closing door is opened, and release the force through the elastic torsion components to close the door when the resistance of the opening and closing door disappears. When the protective cover 32 pushes open the spring door 24, the planar structures at both ends of the protective cover 32 contact the inner ends of the spring door 24. The two ends of the protective cover 32 are locked inside the spring door 24, and the spring door 24 provides clamping force to hold the protective cover 32 under the action of the elastic torsion component, so as to maintain the stability of the contact between the moving contact 33 and the stationary contact 22. When the cleaning robot 1 moves out, since the two ends of the protective cover 32 are planar, it does not affect the movement of the protective cover 32. After the protective cover 32 is moved out, there is no obstruction on the inside of the opening and closing door, so it can be reset and closed under the action of the elastic torsion component. The spring torsion component can be a torsion spring or other elastic components with torsion storage function.

[0038] It should be noted that, depending on the implementation needs, the various components described in the embodiments of this utility model can be split into more components, or two or more components or parts of components can be combined into new components to achieve the purpose of the embodiments of this utility model.

[0039] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A photovoltaic power plant cleaning robot resident charging device, comprising a cleaning robot (1), a static contact assembly (2) and a dynamic contact assembly (3), characterized in that, The static contact assembly (2) includes a protective box (23) and a charging terminal installed inside the protective box (23); The moving contact assembly (3) includes a protective cover (32) fixedly connected to the cleaning robot (1) and a contact end installed on the lower side of the protective cover (32); the cleaning robot (1) moves towards the stationary contact assembly (2) so that the contact end contacts the charging end to realize the transmission of electrical energy; A spring door (24) that can be opened and closed is installed at the opening of the protective box (23) and the moving contact assembly (3). The two sides of the protective cover (32) at the end corresponding to the protective box (23) are inclined inward.

2. The photovoltaic power station cleaning robot resident charging device according to claim 1, characterized in that, The protective box (23) has legs fixedly connected to the corresponding two sides at the lower end, and key holes (27) are opened on both sides of the surface of the legs.

3. The photovoltaic power station cleaning robot resident charging device according to claim 1, characterized in that, The charging terminal includes a bracket (25) fixed inside the protective box (23) and two stationary contacts (22) on the upper side of the bracket (25). A rotating shaft (26) is fixedly connected to the upper end of the bracket (25). A stationary contact insulating fixing plate (21) is rotatably connected to the surface of the rotating shaft (26). The stationary contacts (22) are fixedly connected to both ends of the stationary contact insulating fixing plate (21).

4. The photovoltaic power station cleaning robot resident charging device according to claim 3, characterized in that, The contact end includes two moving contacts (33), and the other end of the two moving contacts (33) is fixedly connected to a moving contact insulating fixing plate (31), which is fixedly connected to the protective cover (32).

5. The photovoltaic power station cleaning robot resident charging device according to claim 4, characterized in that, The protective cover (32) has a structure with an opening at the lower end, and the moving contact (33) extends to the lower side of the protective cover (32) through the opening at the lower end of the protective cover (32).

6. The photovoltaic power station cleaning robot resident charging device according to claim 4, characterized in that, The end of the moving contact (33) that contacts the stationary contact (22) has an arc-shaped structure.

7. The photovoltaic power station cleaning robot resident charging device according to claim 1, characterized in that, The spring door (24) includes an opening and closing door and a mounting shaft fixedly connected to one side of the upper and lower ends of the opening and closing door. The mounting shaft is rotatably connected to the opening of the protective box (23). The surface of the mounting shaft is fitted with an elastic torsion component. The two ends of the elastic torsion component are fixedly connected to the opening and closing door and the inner wall of the protective box (23).

Images