Mobile adsorption device for photovoltaic panel and cleaning robot

Abstract

The utility model belongs to the technical field of photovoltaic equipment cleaning, and particularly provides a movable adsorption device for a photovoltaic panel and a cleaning robot, the adsorption device comprises a bottom plate, at least two negative pressure adsorption units are arranged on the bottom plate and used for adsorbing the bottom plate on the photovoltaic panel through negative pressure, and the negative pressure adsorption units are used for adsorbing the bottom plate on the photovoltaic panel through negative pressure. A moving wheel group is also arranged on the bottom plate and is used for controlling the bottom plate adsorbed on the photovoltaic panel to move; according to the utility model, the negative-pressure adsorption unit forms a negative-pressure area on the surface in contact with the photovoltaic panel, so that the chassis is adsorbed on the photovoltaic panel, and the chassis can adapt to the photovoltaic panels with various installation inclination angles. Meanwhile, through the moving wheel set, it can be guaranteed that the bottom plate can move when being adsorbed on the photovoltaic panel. The negative pressure adsorption and moving wheel set is simple in structure, low in power consumption and capable of achieving stable attachment to different-angle inclined faces of the photovoltaic panel through the multiple adsorption cavities, and the requirements for portability and stability of the photovoltaic cleaning device are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic equipment cleaning technical field, specifically provides a kind of mobile adsorption device and cleaning robot for photovoltaic panel. BACKGROUND

[0002] With the continuous growth of global energy demand and the increasingly prominent environmental problems, the development and utilization of clean energy have become the common concern of governments and enterprises. As a clean and renewable energy, solar energy has gradually become an important part of the global energy structure optimization due to its abundant resources and good environmental benefits.

[0003] At present, large-scale photovoltaic power stations are generally deployed in the arid northwest region. In the case of no cleaning for a long time, a large amount of dust in the air will accumulate on the surface of photovoltaic modules over time, which will significantly affect the energy conversion of photovoltaic power stations, and further affect the power generation efficiency and economic benefits of the entire photovoltaic system. The dust accumulation problem of photovoltaic modules has always been one of the main reasons restricting the further development of photovoltaic power generation projects. Due to the high cost of manual cleaning and the influence of many uncertain factors, many photovoltaic bases are hesitant. To solve this problem, many domestic and foreign universities and companies have conducted in-depth research on the development of photovoltaic cleaning robots. The existing mechanical cleaning equipment is divided into two types, one is to use a large vehicle to operate a mechanical arm for cleaning, and the other is to set up a walking rail along the photovoltaic panel, and let the robot clean along the rail. The former has a large accumulation, high equipment maintenance cost, poor adaptability in narrow or desert special places, and may not be able to walk normally, thereby reducing the overall cleaning efficiency. The latter makes the overall design more complex, and different guide rails need to be set up for different photovoltaic module arrangement modes, which is high in cost and difficult to maintain. However, cleaning devices that do not rely on mechanical arms or walking rails for external support are also difficult to run on inclined or uneven photovoltaic panels, so it is particularly important to develop a cleaning robot for small photovoltaic panels. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of mobile adsorption device and cleaning robot for photovoltaic panel, by providing a kind of light structure simple portable chassis, let the cleaning device of photovoltaic panel not rely on external device can clean on the inclined panel by oneself.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of mobile adsorption device for photovoltaic panel, including bottom plate, negative pressure adsorption unit is arranged on the bottom plate, for the bottom plate is adsorbed on photovoltaic panel by negative pressure, mobile wheel group is also arranged on the bottom plate, for controlling the bottom plate that is adsorbed on photovoltaic panel moves.

[0007] In this scheme, the negative pressure adsorption unit can adapt to photovoltaic panels with various installation angles by forming a negative pressure area with the contact surface of the photovoltaic panel and then adsorbing the chassis on the photovoltaic panel. Meanwhile, the synchronous wheel can provide more stable driving force by moving the wheel set, avoiding the chassis from tilting due to different forces when moving, and ensuring that the chassis can move while being adsorbed on the inclined photovoltaic panel.

[0008] Preferably, the negative pressure adsorption unit is provided with multiple groups along the moving direction of the chassis.

[0009] In this scheme, multiple negative pressure adsorption units are provided to avoid the situation where a single negative pressure adsorption unit falls due to air leakage when encountering rough and uneven areas on the photovoltaic panel surface. Even if two negative pressure adsorption units leak, the chassis will not fall. When the chassis continues to move, the leaking negative pressure unit moves out of the easy-to-leak area and re-adsorbs. This ensures that the chassis can pass through the gap in the photovoltaic panel even if it encounters a gap, and other negative pressure adsorption units can also play an adsorption role when passing through the gap, preventing the chassis from falling due to adsorption failure when passing through the gap.

[0010] Preferably, the negative pressure adsorption unit includes an impeller driven by a brushless motor and a negative pressure pad slidingly inserted into the bottom surface of the chassis, and the negative pressure pad is connected to the bottom surface of the chassis and the impeller. In this scheme, the brushless motor drives the impeller to rotate, forming a negative pressure cavity inside the negative pressure pad, which is connected to the bottom surface of the chassis to achieve negative pressure adsorption. This adsorption method does not rely on ferromagnetic materials, and has lower weight, cost, and energy consumption compared to other adsorption methods such as magnetic adsorption. Meanwhile, the negative pressure pad is slidingly inserted, allowing the adsorption stroke of the negative pressure adsorption unit to be variable, thereby adapting to the protrusions and depressions of the photovoltaic panel.

[0011] Preferably, the chassis is composed of multiple actively connected plate blocks, and each plate block is provided with the negative pressure adsorption unit.

[0012] Preferably, the plate blocks include a front chassis, a middle chassis, and a rear chassis, and the negative pressure adsorption units are respectively arranged on the front chassis, the middle chassis, and the rear chassis. The moving wheel set is arranged on the middle chassis.

[0013] In this scheme, the chassis is divided into three flexible parts, and each part is provided with a negative pressure adsorption unit. When a single chassis encounters a rough and uneven photovoltaic panel, it tilts and causes adsorption failure. However, this does not cause the other two chassis to tilt, ensuring that at least two negative pressure adsorption units are effective at all times, avoiding the risk of falling due to insufficient overall adsorption force, and allowing the chassis to overcome some simple obstacles.

[0014] Preferably, the moving wheel groups are arranged along the length direction of the bottom plate and are symmetrically arranged on the bottom plate in two groups, and the two groups of moving wheel groups are respectively driven by a first motor and a second motor.

[0015] In this scheme, two groups of moving wheel groups are arranged and driven by two motors respectively, when the output power of the two motors is the same, the bottom plate can move linearly, by controlling the output power of the two motors, the rotational speed difference of the two groups of moving wheel groups is controlled, so that the bottom plate can realize turning motion with different rotational amplitudes.

[0016] Since the bottom plate needs to be equipped with other cleaning devices, in order to enable the bottom plate loaded with the cleaning devices to be firmly adsorbed on the photovoltaic panel, the force generated by the negative pressure adsorption unit is large enough to firmly adsorb the bottom plate on the photovoltaic panel, and since the bottom plate is generally used in the field of photovoltaic panel cleaning, the surface of the photovoltaic panel is relatively smooth after cleaning, and the friction force of the simple roller is not enough, and the phenomenon of slipping easily occurs, therefore, preferably, the single moving wheel group comprises a front synchronous pulley and a rear synchronous pulley, and the front synchronous pulley and the rear synchronous pulley are externally sleeved with a rubber belt.

[0017] In this scheme, the rubber belt increases the contact area with the photovoltaic surface and improves the friction force with the photovoltaic surface through pulley transmission, the synchronous belt drives the rubber belt to rotate, the phenomenon of slipping is not easy to occur, and the bottom plate can be more easily and stably moved on the photovoltaic panel.

[0018] Preferably, in the single moving wheel group, a small synchronous pulley is further arranged between the front synchronous pulley and the rear synchronous pulley, and the small synchronous pulley abuts against the inner side of the rubber belt close to the photovoltaic panel. In this scheme, the small synchronous pulley enables the rubber belt between the front synchronous pulley and the rear synchronous pulley to also adhere to the photovoltaic panel, improves the pressure between the rubber belt and the photovoltaic panel, and further improves the friction force between the rubber belt and the photovoltaic panel.

[0019] Preferably, the bottom plate is loaded with a power supply for supplying power to the negative pressure adsorption unit and the moving wheel group.

[0020] A photovoltaic panel cleaning robot comprises the moving adsorption device for the photovoltaic panel.

[0021] The robot can realize the functions of independent cleaning and moving on the inclined photovoltaic panel through the moving adsorption device, and subsequent movement of the electric cleaning roller brush and other components arranged on the device. Since the overall structure is simple and the adsorption device is light, the robot can be automatically adsorbed and cleaned, and can be applied to various cleaning scenes of photovoltaic panels, and can make up for the vacancy of small photovoltaic cleaning robots on the market.

[0022] The beneficial effects of the utility model are as follows:

[0023] The utility model discloses a negative pressure adsorption unit forms the negative pressure area with photovoltaic panel contact surface, and then adsorbs the bottom disc on photovoltaic panel, can adapt to each installation inclination photovoltaic panel, simultaneously, through moving wheel group, can guarantee that the bottom plate can be adsorbed on photovoltaic panel and realize the removal. And negative pressure adsorption simple structure, low power consumption, can realize the stable adhesion to the different angle inclined surface of photovoltaic panel through multiple adsorption cavities, satisfies the portability and stability requirement of photovoltaic cleaning device. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the present application, the following will be a brief description of the drawings needed to use the embodiment, obviously, the following description in the drawings is only some embodiments of the present application, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.

[0025] Figure 1 It is the perspective view of the utility model mobile adsorption base;

[0026] Figure 2 It is the perspective view of the utility model negative pressure adsorption unit;

[0027] Figure 3 It is the sectional view of the utility model negative pressure adsorption unit;

[0028] Figure 4 It is the schematic diagram of the utility model mobile wheel group.

[0029] In the above drawings, corresponding to the figure mark as follows:

[0030] 1-bottom plate, 101-front bottom plate, 102-middle bottom plate, 103-rear bottom plate, 2-negative pressure adsorption unit, 201-impeller, 202-drive protection shell, 203-gas guide cover, 204-negative pressure bottom pad, 3-mobile wheel group, 301-front synchronous pulley, 302-rear synchronous pulley, 303-rubber belt, 304-small synchronous wheel, 305-support frame, 306-adjustable sliding block, 307-sliding slot, 4-first motor, 5-second motor. DETAILED DESCRIPTION

[0031] Combined with the drawings, through the specific implementation of the embodiment of the present application, the technical scheme of the present application is clearly and completely explained.

[0032] A kind of mobile adsorption device for photovoltaic panel, as Figure 1As shown, including the base plate 1, the base plate 1 is provided with at least one adsorption unit 2, and the negative pressure adsorption unit 2 is preferably provided with at least two negative pressure adsorption units 2, which are used to adsorb the base plate 1 on the photovoltaic panel through negative pressure. The base plate 1 is also provided with a moving wheel set 3 for controlling the movement of the base plate 1 adsorbed on the photovoltaic panel. The negative pressure adsorption unit 2 forms a negative pressure area with the contact surface of the photovoltaic panel, and then adsorbs the base plate on the photovoltaic panel, which can adapt to photovoltaic panels with various installation angles. The setting of at least two negative pressure adsorption units 2 can avoid the situation that a single negative pressure adsorption unit 2 encounters a rough and uneven area on the surface of the photovoltaic panel and falls due to air leakage. Even if one negative pressure adsorption unit 2 leaks, the base plate 1 will not fall off, and when the bottom continues to move, the leaking negative pressure unit moves out of the easy-to-leak area and re-performs negative pressure adsorption. At the same time, through the moving wheel set 3, it can ensure that the base plate 1 can be adsorbed on the photovoltaic panel and can move. After the moving adsorption device for the photovoltaic panel is installed with other structures such as cleaning components and intelligent control components, a small-sized photovoltaic panel cleaning robot can be manufactured.

[0033] Embodiment one:

[0034] Since the base plate 1 needs to be equipped with other cleaning equipment, in order to enable the base plate 1 loaded with cleaning equipment to be firmly adsorbed on the photovoltaic panel, the force generated by the negative pressure adsorption unit 2 of the base plate 1 is large enough to firmly adsorb the base plate on the photovoltaic panel. Since the base plate is generally used in the field of photovoltaic panel cleaning, the surface of the photovoltaic panel is relatively smooth after cleaning, and the simple friction force of the roller is not enough, which is easy to slip. The moving wheel set 3 can use existing rudders, powered ball wheels, etc. Therefore, based on the above scheme, a specific moving wheel set 3 setting method is provided in this embodiment, as shown in Figure 1 and Figure 4 As shown, the moving wheel set 3 is arranged along the length direction of the base plate 1 and is symmetrically arranged on the base plate 1 in two groups, and the two groups of moving wheel sets 3 are respectively driven by a first motor 4 and a second motor 5. And a single moving wheel set 3 includes a front synchronous pulley 301 and a rear synchronous pulley 302, and the outer surface of the front synchronous pulley 301 and the rear synchronous pulley 302 is provided with a rubber belt 303. The front synchronous pulley 301 and the rear synchronous pulley 302 are also provided with a small synchronous pulley 304, and the small synchronous pulley 304 abuts against the inner side of the rubber belt 303 close to the photovoltaic panel to increase the pressure of the rubber belt 303 in contact with the photovoltaic panel and improve the friction force.

[0035] It is to be noted that the front synchronous pulley 301, the rear synchronous pulley 302 and the small synchronous pulley 304 are mounted on the support frame 305, the support frame 305 is detachably connected on the base through bolt connection or the like, and in order to ensure that the rubber belt 303 does not slip due to slackening during work, the tension of the rubber belt 303 needs to be adjusted, therefore, the rotating shaft of the front synchronous pulley 301 or the rear synchronous pulley 302 is slidingly arranged on the support frame 305, and an adjustable sliding block 306 rotatingly connected is used as a limiting structure to control the sliding of the rotating shaft of the front synchronous pulley 301 or the rear synchronous pulley 302 on the support frame 305, and to position the distance between the front synchronous pulley 301 and the rear synchronous pulley 302. The rotating shaft of the front synchronous pulley or the rear synchronous pulley 302 can be slidingly arranged on the support frame 305, or only one of them can be slidingly arranged. In order to simplify the structure, only one synchronous pulley is adjustably arranged, preferably the driving pulley connected with the motor is fixed, and the driven pulley is arranged to be slidable along the sliding groove 307.

[0036] Embodiment two:

[0037] On the basis of embodiment one, the embodiment provides a specific negative pressure adsorption unit 2 structure, as shown in Figure 1 In order to ensure that the adsorption force of the base is sufficient, a plurality of groups of negative pressure adsorption units 2 are arranged along the moving direction of the bottom plate 1.

[0038] Specifically, as shown in Figure 2 and Figure 3 A single negative pressure adsorption unit 2 includes an impeller 201 driven by a brushless motor, and the impeller 201 can form a negative pressure cavity on the bottom surface of the bottom plate 1 by air suction. Only the brushless motor can drive the impeller 201 to rotate, so as to realize negative pressure adsorption independent of ferromagnetic materials, and the weight, cost and energy consumption are lower.

[0039] Further, the brushless motor is wrapped by a driving protection shell 202 to avoid the invasion of dust, sand and other impurities into the motor driving board in subsequent work, and the bottom of the negative pressure cavity is provided with a negative pressure bottom pad 204, which is lower than the base. When the device works, it can contact the photovoltaic panel first, so as to ensure the sealing property of the negative pressure cavity when the impeller 201 rotates. At the same time, a gas guide cover 203 is also arranged at the top of the driving protection shell 202, which can suck the air at the corresponding position of the base into the negative pressure cavity, and then discharge it through the gas guide cover 203, so as to ensure that the base can be firmly fixed on the surface of the photovoltaic panel.

[0040] Further, the negative pressure bottom pad 204 is slidingly inserted at the bottom of the base 1, and the adsorption stroke of the entire negative pressure adsorption unit 2 is variable. Since the adsorption stroke of the negative pressure adsorption unit can change, when the adsorption type base moves on the photovoltaic panel, it can adaptively "lengthen or shorten" when encountering protrusions or depressions, that is, when the negative pressure adsorption unit encounters protrusions, the adsorption stroke of the negative pressure adsorption unit shortens, ensuring that the bottom plate does not tilt to form an angle of elevation, and when it encounters depressions, the adsorption stroke of the negative pressure adsorption unit lengthens, ensuring that the bottom plate does not sink at this point to form an angle of depression, thereby ensuring the stability of the entire bottom plate when moving on the photovoltaic panel.

[0041] Example three:

[0042] As shown in Figure 1 the bottom plate 1 is composed of a plurality of mutually movable plates, and the number of plates can be 2, 3, 4, etc., according to the actual cost and device size setting, and 3 plates are preferably used in this embodiment, namely front bottom plate 101, middle bottom plate 102 and rear bottom plate 103, the negative pressure adsorption unit 2 is arranged on the front bottom plate 101, middle bottom plate 102 and rear bottom plate 103 respectively, and the moving wheel set 3 is arranged on the middle bottom plate 102.

[0043] In this embodiment, the bottom plate 1 is divided into three parts connected by flexible connection, and the flexible connection can be a hinge connection or the like, and each part is provided with a negative pressure adsorption unit 2, so that when the single bottom plate 1 encounters a rough photovoltaic panel, it tilts and causes adsorption failure, and the other two bottom plates 1 do not tilt, so that the entire bottom plate 1 always has at least two negative pressure adsorption units 2 that are effective in adsorption, which can avoid the risk of falling due to insufficient overall adsorption force, and can also overcome some simple obstacles.

[0044] Further, since the front bottom plate 101, middle bottom plate 102 and rear bottom plate 103 are flexibly connected, the front bottom plate 101 is equivalent to being pushed by the middle bottom plate 102, and when the entire bottom plate 1 moves, the negative pressure adsorption unit 2 of the pushed front bottom plate 101 is easy to interfere with the protruding part on the photovoltaic panel, causing the device to fail to move forward normally, so guide wheels are arranged at both ends of the front bottom plate 101 and the rear bottom plate, when the negative pressure adsorption unit 2 is about to interfere with the protruding obstacle on the photovoltaic panel, the guide wheel contacts the protruding obstacle first, and the front bottom plate 101 is lifted in advance to avoid interference and collision.

[0045] Further, the bottom plate 1 is loaded with a power supply for the negative pressure adsorption unit 2 and the moving wheel set 3, and the power supply is preferably a 12000mAh 24V lithium battery, which can meet the continuous operation of the small photovoltaic panel cleaning robot for 1 hour under normal working conditions.

[0046] Example four:

[0047] A photovoltaic panel cleaning robot uses the mobile adsorption device for photovoltaic panels of the above-mentioned embodiments 1 to 3, and is provided with an electric cleaning roller brush and a processor on the mobile adsorption device, the processor automatically controls the operation of the electric cleaning roller brush according to the specifications and arrangement of the photovoltaic panel, and makes the mobile adsorption device move, driving the electric cleaning roller brush to clean each position on the photovoltaic panel. The robot can realize the functions of independent cleaning and moving on the inclined photovoltaic panel through the mobile adsorption device, and can be suitable for various photovoltaic panel cleaning scenes due to the simple overall structure, the light adsorption device and the automatic adsorption cleaning, and can make up for the vacancy of small photovoltaic cleaning robots on the market.

[0048] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A mobile adsorption device for photovoltaic panels, characterized in that: Includes a base plate (1), on which a negative pressure adsorption unit (2) is provided to adsorb the base plate (1) onto the photovoltaic panel by negative pressure, and a set of moving wheels (3) is also provided on the base plate (1) to control the movement of the base plate (1) adsorbed on the photovoltaic panel.

2. The movable adsorption device for photovoltaic panels according to claim 1, characterized in that: The negative pressure adsorption unit (2) is provided in multiple sets along the moving direction of the base plate (1).

3. The movable adsorption device for photovoltaic panels according to claim 2, characterized in that: The negative pressure adsorption unit (2) includes an impeller (201) driven by a brushless motor and a negative pressure pad (204) slidably inserted into the bottom surface of the base plate (1). The negative pressure pad (204) connects the bottom surface of the base plate (1) and the impeller (201).

4. The movable adsorption device for photovoltaic panels according to claim 3, characterized in that: The base plate (1) consists of multiple movable plates, each of which is provided with the negative pressure adsorption unit (2).

5. A movable adsorption device for photovoltaic panels according to claim 4, characterized in that: The plate includes a front bottom plate (101), a middle bottom plate (102) and a rear bottom plate (103). The negative pressure adsorption unit (2) is respectively disposed on the front bottom plate (101), the middle bottom plate (102) and the rear bottom plate (103), and the moving wheel set (3) is disposed on the middle bottom plate (102).

6. A movable adsorption device for photovoltaic panels according to any one of claims 1 to 5, characterized in that: The movable wheel set (3) is arranged along the length direction of the base plate (1) and two sets are symmetrically arranged on the base plate (1). The two sets of movable wheel sets (3) are driven by the first motor (4) and the second motor (5) respectively.

7. A movable adsorption device for photovoltaic panels according to claim 6, characterized in that: The single set of movable wheel assembly (3) includes a front synchronous pulley (301) and a rear synchronous pulley (302), and the front synchronous pulley (301) and the rear synchronous pulley (302) are covered with rubber belts (303).

8. A movable adsorption device for photovoltaic panels according to claim 7, characterized in that: In a single movable wheel set (3), a small synchronous pulley (304) is also provided between the front synchronous pulley (301) and the rear synchronous pulley (302), and the small synchronous pulley (304) abuts against the inner side of the rubber belt (303) near the photovoltaic panel.

9. A movable adsorption device for photovoltaic panels according to claim 1, characterized in that: The base plate (1) is equipped with a power supply that provides power to the negative pressure adsorption unit (2) and the moving wheel assembly (3).

10. A photovoltaic panel cleaning robot, characterized in that: Includes a mobile adsorption device for photovoltaic panels as described in any one of claims 1 to 9.

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