Photovoltaic module cleaning device

Abstract

The embodiment of the utility model discloses a photovoltaic module cleaning device which comprises a mounting frame, a steering wheel and a connecting arm, and the steering wheel is connected with the mounting frame through the connecting arm. The installation frame can stretch across the photovoltaic module, vertical supports, located on the two sides of the photovoltaic module, of the installation frame are used for installing connecting arms, the plane where the connecting arms are located is perpendicular to the plane where the installation frame is located, steering wheels are installed at the two ends of the connecting arms in the length direction, and steering wheel motors used for driving the steering wheels to rotate and steer are also installed on the connecting arms. The middle of the connecting arm is hinged to the middle of the lower end of the vertical support, and the two ends of the connecting arm in the length direction are connected with the vertical support through elastic supporting assemblies. The elastic supporting assembly not only can support the vertical support, but also can stretch out and draw back along with the ground cavity, so that the steering wheels located at the two ends of the length direction of the connecting arm can be always in contact with the ground, and the stability of the photovoltaic module cleaning device running on the ground is improved.

Description

Technical Field

[0001] The present application relates to the field of clean energy technology, and in particular to a photovoltaic module cleaning device. Background Art

[0002] The photovoltaic module cleaning device can clean the photovoltaic panels efficiently and intelligently.

[0003] The photovoltaic module cleaning device includes a frame and a steering wheel. In the prior art, the frame and the steering wheel are rigidly connected. When the photovoltaic module cleaning device runs on a bumpy road, the photovoltaic module cleaning device will tilt, reducing the stability of the photovoltaic module cleaning device and causing unstable operation.

[0004] Therefore, how to improve the stability of the operation of the photovoltaic module cleaning device has become a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0005] The present application proposes a photovoltaic module cleaning device to improve the stability of the operation of the photovoltaic module cleaning device.

[0006] In order to achieve the above-mentioned purpose, the present application provides a photovoltaic module cleaning device, including a mounting frame, a steering wheel and a connecting arm.

[0007] The length direction of the connecting arm is perpendicular to the plane where the mounting frame is located, the steering wheel is installed at both ends of the length direction of the connecting arm, and the steering wheel motor for driving the steering wheel to rotate and turn is installed on the connecting arm.

[0008] The middle part of the connecting arm is hinged to the middle part of the lower end of the vertical bracket of the mounting frame located on both sides of the photovoltaic component, and the two ends of the connecting arm in the length direction are connected to the vertical bracket through elastic support components.

[0009] Preferably, in the above photovoltaic assembly cleaning device, the elastic support assembly comprises:

[0010] A lower support rod, the lower end of which is hinged to the connecting arm, a cavity coaxial with the lower support rod is formed on the lower support rod, and a first limit plate is provided on the lower support rod;

[0011] An upper support rod, the lower end of which is located in the cavity, the upper end of which is provided with a second limit plate, and the second limit plate is hingedly connected to the lower end of the vertical bracket;

[0012] An elastic member is sleeved on the lower support rod, one end of the elastic member abuts against the first limit plate, and the other end of the elastic member abuts against the second limit plate. The elastic member is used to apply an oblique upward thrust to the second limit plate to support the mounting frame.

[0013] Preferably, in the above photovoltaic module cleaning device, the lower support rod is provided with an external thread, and the first limiting plate is threadedly connected to the lower support rod to adjust the elastic force of the elastic member.

[0014] Preferably, in the above photovoltaic module cleaning device, the elastic member is a spring.

[0015] Preferably, the photovoltaic module cleaning device further comprises a collector and a controller.

[0016] The collector is used to collect the driving speed of the steering wheel motor and the steering angle of the steering wheel;

[0017] The controller is in communication connection with the collector, and is used for receiving the driving speed and the steering angle, and comparing the driving speed with a preset driving speed, and the steering angle with a preset driving angle, so as to generate a control instruction;

[0018] The driver of the steering wheel motor is in communication connection with the controller, and the driver controls the steering wheel motor to adjust the driving speed and the steering angle.

[0019] Preferably, in the above photovoltaic module cleaning device, the collector includes an encoder and a gyroscope.

[0020] The encoder is used to collect the driving speed of the steering wheel motor, and the gyroscope is used to collect the steering angle of the steering wheel.

[0021] Preferably, in the above-mentioned photovoltaic module cleaning device, the encoder is an encoder provided by the steering wheel motor.

[0022] Preferably, in the above-mentioned photovoltaic module cleaning device, the gyroscope is installed on the steering wheel motor.

[0023] Preferably, in the above photovoltaic module cleaning device, the gyroscope, the controller and the driver share a power supply.

[0024] Preferably, in the above-mentioned photovoltaic module cleaning device, the power source is a battery.

[0025] The photovoltaic module cleaning device provided in the embodiment of the present application includes a mounting frame, a steering wheel and a connecting arm, and the steering wheel is connected to the mounting frame through the connecting arm. The mounting frame can span across the photovoltaic module, and the vertical brackets of the mounting frame located on both sides of the photovoltaic module are used to install the connecting arm. The plane where the connecting arm is located is perpendicular to the plane where the mounting frame is located. Steering wheels are installed at both ends of the length direction of the connecting arm, and the steering wheel motor used to drive the steering wheel to rotate and turn is also installed on the connecting arm. The middle part of the connecting arm is hingedly connected to the middle part of the lower end of the vertical bracket, and both ends of the length direction of the connecting arm are connected to the vertical bracket through an elastic support assembly. The elastic support assembly can not only support the vertical bracket, but also can be extended and retracted with the potholes on the ground, so that the steering wheels located at both ends of the length direction of the connecting arm can always keep in contact with the ground, thereby improving the stability of the photovoltaic module cleaning device when running on the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the present application can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0027] Figure 1 It is a structural schematic diagram of the photovoltaic module cleaning device of the present application;

[0028] Figure 2 is a side view of the photovoltaic module cleaning device of the present application;

[0029] Figure 3 It is a principle block diagram of the photovoltaic module cleaning device of the present application.

[0030] in:

[0031] 1-installation frame; 2-steering wheel; 3-connecting arm; 4-elastic support assembly; 41, lower support rod; 42, upper support rod; 43, elastic member; 44, first limit plate; 45, second limit plate; 5-gyroscope; 6-power supply. DETAILED DESCRIPTION

[0032] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are only used to explain the related application, rather than to limit the application. The described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0033] It should be noted that, for the convenience of description, only the parts related to the relevant application are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other.

[0034] See also Figure 1-Figure 3 .

[0035] Some embodiments of the present application disclose a photovoltaic module cleaning device, including a mounting frame 1, a steering wheel 2 and a connecting arm 3, wherein the steering wheel 2 is connected to the mounting frame 1 via the connecting arm 3.

[0036] like Figure 1 As shown, the mounting frame 1 can span across the photovoltaic module, and the vertical brackets of the mounting frame 1 located on both sides of the photovoltaic module are used to install the connecting arm 3. The plane where the connecting arm 3 is located is perpendicular to the plane where the mounting frame 1 is located. Steering wheels 2 are installed at both ends of the length direction of the connecting arm 3, and the steering wheel motor for driving the steering wheel 2 to rotate and turn is also installed on the connecting arm 3.

[0037] The middle part of the connecting arm 3 is hingedly connected to the middle part of the lower end of the vertical bracket, and both ends of the connecting arm 3 in the length direction are connected to the vertical bracket through elastic support components 4. The elastic support components 4 can not only support the vertical bracket to prevent the mounting frame 1 from freely rotating around the hinge position between it and the connecting arm 3, but also can expand and contract with the potholes on the ground, so that the steering wheels 2 located at both ends of the length direction of the connecting arm 3 can always keep in contact with the ground, thereby improving the stability of the photovoltaic module cleaning device when running on the ground; in addition, the elastic support components 4 can buffer the vibration of the ground acting on the photovoltaic cleaning device, and compared with the driving in which the mounting frame 1 and the connecting arm 3 are rigidly connected, it can reduce the damage to the connection position of the mounting frame 1 and the connecting arm 3, thereby extending the service life of the photovoltaic module cleaning device.

[0038] Preferably, the elastic support components 4 are symmetrically distributed on both sides of the connection position between the connecting arm 3 and the mounting frame 1, so that the elastic support components 4 can provide uniform supporting force to both sides of the vertical bracket.

[0039] In some embodiments of the present application, Figure 2 As shown, the elastic support assembly 4 includes a lower support rod 41 , an upper support rod 42 and an elastic member 43 .

[0040] The lower end of the lower support rod 41 is hinged to the connecting arm 3, the upper end of the lower support rod 41 is provided with a cavity coaxial with the lower support rod 41, and the lower support rod 41 is provided with a first limit plate 44;

[0041] The lower end of the upper support rod 42 is located in the cavity, and a second limit plate 45 is provided on the upper part of the upper support rod 42, and the second limit plate 45 is hingedly connected to the lower end of the vertical bracket;

[0042] The elastic member 43 is sleeved on the lower support rod 41 and is located between the first limit plate 44 and the second limit plate 45. The elastic member 43 is always in a compressed state. One end of the elastic member 43 abuts against the first limit plate 44, and the other end of the elastic member 43 abuts against the second limit plate 45, so as to apply an oblique upward thrust to the second limit plate 45 to support the mounting frame 1. When the road applies an upward thrust to the steering wheel 2, the steering wheel 2 transmits the thrust to the end of the connecting arm 3 connected to the steering wheel 2. At this time, the overall length of the elastic support assembly 4 is shortened and the elastic member 43 is compressed; when the road does not apply an upward thrust to the steering wheel 2, the elastic member 43 stretches, and the overall length of the elastic support assembly 4 is increased. The elastic member 43 applies a restoring force to the end of the connecting arm 3 connected to the steering wheel 2.

[0043] In some embodiments of the present application, the elastic member 43 is a spring.

[0044] There are at least two elastic support components 4 , which are symmetrically distributed on both sides of the hinged connection position between the connecting arm 3 and the mounting frame 1 , so as to apply symmetrical support forces to the mounting frame 1 .

[0045] The elastic support assembly 4 is not limited to the above structure, and the elastic support member can also be a tension spring. In this embodiment, there are multiple tension springs, which are symmetrically distributed on both sides of the hinged connection position between the connecting arm 3 and the mounting frame 1.

[0046] In order to further improve the use effect of the elastic support assembly 4, the present application is provided with an external thread on the lower support rod 41, and an internal thread on the first limit plate 44, and the lower support rod 41 and the first limit plate 44 are matched with the external thread and the internal thread to realize threaded connection. When the force of the elastic member 43 on the mounting frame 1 is not large enough, the first limit plate 44 can be rotated to shorten the distance between the first limit plate 44 and the second limit plate 45, and the compression amount of the elastic member 43 can be increased to increase the force of the elastic member 43 on the mounting frame 1; when the force of the elastic member 43 on the mounting frame 1 is too large, the first limit plate 44 can be rotated to increase the distance between the first limit plate 44 and the second limit plate 45, and the compression amount of the elastic member 43 can be reduced to reduce the force of the elastic member 43 on the mounting frame 1.

[0047] When the photovoltaic module cleaning device is traveling in a desert or on a bumpy road, the driving speed and steering angle of one or several steering wheels 2 of the photovoltaic module cleaning device may fail to meet the preset driving speed and steering angle, causing the installation frame 1 of the photovoltaic module cleaning device to twist. When the twisting amount of the installation frame 1 reaches a certain level, the stress on the installation frame 1 will exceed the yield strength of the material, causing plastic deformation of the installation frame 1.

[0048] In order to solve the above problems, the photovoltaic module cleaning device disclosed in the present application also includes a collector and a controller.

[0049] The collector is used to collect the driving speed of the steering wheel motor and the steering angle of the steering wheel 2 in real time;

[0050] The controller is in communication connection with the collector, and is used for receiving the driving speed and steering angle collected by the collector, and comparing the driving speed with a preset driving speed, and the steering angle with a preset steering angle, so as to generate a control instruction;

[0051] The steering wheel motor has driving and steering functions, that is, the steering wheel motor can adjust the driving speed of the steering wheel 2 and the steering angle of the steering wheel 2. The driver of the steering wheel motor is communicated with the controller, can receive control instructions, and adjust the driving speed and steering angle of the steering wheel 2 according to the control instructions, so that the steering wheel 2 moves according to the preset driving speed and preset steering angle.

[0052] Specifically, each steering wheel 2 is provided with a collector, and the controller is communicated with the collectors of all steering wheels 2 to adjust the driving speed and steering angle of each steering wheel 2 respectively, so that all steering wheels 2 move according to the preset driving speed and preset steering angle to prevent the installation frame 1 from plastic deformation due to torsion.

[0053] The photovoltaic module cleaning device disclosed in the present application automatically adjusts the driving speed and steering angle of the steering wheel 2 of the photovoltaic module cleaning device through the cooperation of a collector, a controller and a driver of a steering wheel motor, so that each steering wheel 2 of the photovoltaic module cleaning device always maintains the same driving speed and steering angle, and the photovoltaic module cleaning device moves according to a set trajectory. On the basis of ensuring that the photovoltaic module cleaning device cleans the photovoltaic panel efficiently and intelligently, the risk of plastic deformation of the mounting frame 1 is reduced, thereby extending the service life of the photovoltaic module cleaning device.

[0054] In some embodiments of the present application, the collector includes an encoder and a gyroscope 5 .

[0055] The encoder is used to collect the driving speed of the steering wheel motor, and the gyroscope 5 is used to collect the steering angle of the steering wheel 2. Both the encoder and the gyroscope 5 are connected to the controller for communication.

[0056] Preferably, the encoder is an encoder provided by the steering wheel motor; the gyroscope 5 is mounted on the steering wheel motor.

[0057] The gyroscope 5 is connected to the controller via a 485 bus.

[0058] In this solution, the gyroscope 5, the controller and the driver share a power supply 6 to simplify the structure of the photovoltaic module cleaning device.

[0059] The gyroscope 5 , the controller and the driver may also use different power supplies 6 , respectively.

[0060] Preferably, the power source 6 is a battery. Using a battery to power the gyroscope 5, the controller and the driver can reduce the influence of the wires on the movement of the photovoltaic module cleaning device and improve the flexibility of the photovoltaic module cleaning device.

[0061] In some embodiments of the present application, the battery is a battery provided by the photovoltaic module cleaning device.

[0062] The power source 6 may also be alternating current.

[0063] In the embodiment where the power source 6 is a battery, the battery may be a lithium battery, a lead-acid battery, or a solar cell.

[0064] In the embodiment where the battery is a lithium battery, the battery is a lithium iron phosphate battery. The battery includes a plurality of groups of lithium iron phosphate batteries, and the output voltage is 48V.

[0065] Lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate as the positive electrode material and carbon as the negative electrode material. It has the advantages of high operating voltage, high energy density, long cycle life, good safety performance, low self-discharge rate and no memory effect.

[0066] The chip of the main control board of the controller in this solution is STM32H750 chip. The main control board has power supply 6 interfaces and communication interfaces.

[0067] A collector, a steering wheel motor and a motor driver are provided on a single steering wheel 2, and the collectors, steering wheel motors and motor drivers of multiple steering wheels 2 share a controller. Preferably, the controller is a controller provided by the photovoltaic module cleaning device, and a separate controller does not need to be provided.

[0068] It should be noted here that the controller involved in this application is a commonly used controller in the prior art, and this application does not involve improvements to the controller.

[0069] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used, and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. The scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned application concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in this application (but not limited to) to form a technical solution.

Claims

1. A photovoltaic module cleaning device, characterized in that: It comprises a mounting frame (1), a steering wheel (2) and a connecting arm (3), The length direction of the connecting arm (3) is perpendicular to the plane where the mounting frame (1) is located. The steering wheel (2) is installed at both ends of the length direction of the connecting arm (3). A steering wheel motor for driving the steering wheel (2) to rotate and turn is installed on the connecting arm (3). The middle part of the connecting arm (3) is hinged to the middle part of the lower end of the vertical bracket of the installation frame (1) located on both sides of the photovoltaic module, and the two ends of the connecting arm (3) in the length direction are connected to the vertical bracket through elastic support components (4).

2. The photovoltaic module cleaning device according to claim 1, characterized in that: The elastic support assembly (4) comprises: a lower support rod (41), the lower end of the lower support rod (41) being hinged to the connecting arm (3), the lower support rod (41) being provided with a cavity coaxial with the lower support rod (41), and the lower support rod (41) being provided with a first limiting plate (44); An upper support rod (42), the lower end of the upper support rod (42) is located in the cavity, the upper end of the upper support rod (42) is provided with a second limit plate (45), and the second limit plate (45) is hingedly connected to the lower end of the vertical bracket; An elastic member (43) is sleeved on the lower support rod (41), one end of the elastic member (43) abuts against the first limit plate (44), and the other end of the elastic member (43) abuts against the second limit plate (45), and the elastic member (43) is used to apply an oblique upward thrust to the second limit plate (45) to support the mounting frame (1).

3. The photovoltaic module cleaning device according to claim 2, characterized in that: The lower support rod (41) is provided with an external thread, and the first limiting plate (44) is threadedly connected to the lower support rod (41) to adjust the elastic force of the elastic member (43).

4. The photovoltaic module cleaning device according to claim 2, characterized in that: The elastic member (43) is a spring.

5. The photovoltaic module cleaning device according to claim 1, characterized in that: It also includes a collector and a controller. The collector is used to collect the driving speed of the steering wheel motor and the steering angle of the steering wheel (2); The controller is in communication connection with the collector, and is used for receiving the driving speed and the steering angle, and comparing the driving speed with a preset driving speed, and the steering angle with a preset driving angle, so as to generate a control instruction; The driver of the steering wheel motor is in communication connection with the controller, and the driver controls the steering wheel motor to adjust the driving speed and the steering angle.

6. The photovoltaic module cleaning device according to claim 5, characterized in that: The collector includes an encoder and a gyroscope (5), The encoder is used to collect the driving speed of the steering wheel motor, and the gyroscope (5) is used to collect the steering angle of the steering wheel (2).

7. The photovoltaic module cleaning device according to claim 6, characterized in that: The encoder is an encoder provided by the steering wheel motor.

8. The photovoltaic module cleaning device according to claim 6, characterized in that: The gyroscope (5) is mounted on the steering wheel motor.

9. The photovoltaic module cleaning device according to claim 6, characterized in that: The gyroscope (5), the controller and the driver share a power supply (6).

10. The photovoltaic module cleaning device according to claim 9, characterized in that: The power source (6) is a battery.

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