LU504405B1

LU504405B1 - Safety ladder for dust removal of photovoltaic modules

Info

Publication number: LU504405B1
Application number: LU504405A
Authority: LU
Inventors: Lixing Wang; Junhong Zhao; Jianlin Xi; Xin Gao; Liang Yan; Hua Wu; Xinyong Zhang; Xuehai Ji; Zhengpu Shi; Liang Ma; Xingyu Chen; Jianguo Xu; Yan Tong; Mingchun Liu; Guizhong Wang; Naihong Cao; Zhenyong Yang
Original assignee: Wuzhong City Hongsibao Distr Xinke Energy Co Ltd
Priority date: 2022-06-15
Filing date: 2023-06-05
Publication date: 2023-12-05
Also published as: CN115263172A

Abstract

The present disclosure discloses a safety ladder for dust removal of photovoltaic modules, and the safety ladder for dust removal of photovoltaic modules includes a ladder body, steps, a connecting mechanism, a frame, a dust removal mechanism, a liquid spraying mechanism, a dust sensor, a vibrating motor and a controller. According to the application, water and dust-proof liquid are reasonably combined for cleaning of photovoltaic module, specifically, the photovoltaic module is cleaned and then sprayed with dust-proof liquid, so that the service life of photovoltaic module is prolonged, and the normal operation of photovoltaic module equipment is maintained. Servo motor controls a dust removal brush rod and a cloth brush rod to rotate, so as to clean the dust on the surface of photovoltaic module, in such a way, the dust removal effect is better, and the working efficiency of photovoltaic module is improved.

Description

Safety ladder for dust removal of photovoltaic modules 0504405

Technical field

The present disclosure relates to the technical field of dust removal of photovoltaic modules, in particular to a safety ladder for dust removal of photovoltaic modules.

Background technology

Photovoltaic power generation is a technology that uses the photovoltaic effect at the semiconductor interface to convert light energy directly into electric energy. It is mainly composed of three major parts: solar panel (module), controller and inverter, and the main components are made up of electronic parts. Solar cells are connected in series and then encapsulated to form large-area solar cell modules, and finally the large-area solar cell modules, together with components such as power controller, form a photovoltaic power generation device.

Dust accumulated on the surface of photovoltaic modules used under natural conditions greatly affects the power generation, specifically, affects the power generation and operation safety of photovoltaic power station, so regular and frequent dust removal is very important to maintain the daily operation of photovoltaic modules.

At present, most of the dust removal of photovoltaic modules is carried out manually, this is time-consuming and labor-intensive and cannot realize timely cleaning; a little of the dust removal of photovoltaic modules is carried out by using cleaning machines or devices, although saving manpower and improving efficiency, cleaning devices are not easy to go up to clean because many photovoltaic modules are installed on the roof or high places of building.

Moreover, a suitable cleaning method isn’t selected for the specific dust amount, specifically, only one cleaning method is used for different dust amounts, so that the cleaning effect is poor.

At present, how to clean the photovoltaic modules in high places and adopt suitable method to clean them according to the dust amount is a technical problem that the skilled in the art need to solve.

Summary of the invention

In some examples of the application, a safety ladder for dust removal of photovoltaic modules is provided, and the safety ladder for dust removal of photovoltaic modules also includes the following structures: a ladder body; steps, wherein the steps are fixed between the ladder body inside at an interval; a connecting mechanism, including a first connecting rod, a second connecting rod and a third connecting rod, wherein the first connecting rod is fixedly connected to the top of the ladder body, the second connecting rod is fixedly connected to the middle position of the first connecting rod, with the first connecting rod vertical to the second connecting rod, and the third connecting rod is fixedly connected to the top of the first connecting rod and vertical to the first connecting rod; a frame, wherein the frame is fixedly connected to the second connecting rod, and clamped with the photovoltaic module through a fastener; a dust removal mechanism, wherein the dust removal mechanism is fixedly connected to the frame and used for cleaning the dust on the photovoltaic module; a liquid spraying mechanism, wherein the liquid spraying mechanism is fixedly connected to the third connecting rod, communicated with the frame and used for spraying a liquid medium on the photovoltaic module, so as to clean or protect the photovoltaic module; a dust sensor, wherein the dust sensor is arranged on the inner wall of the frame and used for detecting the dust amount on the surface of the photovoltaic module in the frame; a vibrating motor, wherein the vibrating motor is arranged at the bottom of the frame and used for driving the frame to vibrate left and right or up and down; and a controller, wherein the controller is electrically connected to the dust removal mechanism, the liquid spraying mechanism, the dust sensor and the vibrating motor, and used for controlling the movement conditions of the dust removal mechanism, the liquid spraying mechanism and the vibrating motor according to the dust amount on the photovoltaic module. In this way, the problem of inconvenient cleaning of photovoltaic modules on the roof is solved,

and a suitable cleaning method is selected according to the dust amount, so that the dust removal effect is good.

In some examples of the application, the dust removal structure is improved, and the dust removal mechanism includes: a servo motor, wherein the servo motor is fixedly connected to the frame; a coupling rod, wherein the coupling rod is arranged on the output shaft of the servo motor; a dust removal brush rod, wherein the dust removal brush rod is connected to the coupling rod and used for removing dust on the photovoltaic module; a cloth brush rod, wherein the cloth brush rod is connected to the coupling rod and used for sucking sewage on the photovoltaic module and wiping up stains. In this way, the dust removal structure is simpler and the dust removal effect is better, so that the working efficiency of photovoltaic modules is improved.

In some examples of the application, the cleaning structure is improved, and the liquid spraying mechanism includes: a box body, wherein the box body is fixedly connected to the third connecting rod and provided with a dust-proof liquid area and a water area inside; a partition is arranged between the dust-proof liquid area and the water area, so as to separate the dust-proof liquid area from the water area. The liquid spraying mechanism also includes: a first water supply pipe, with one end communicated with the dust-proof liquid area and the other end passing through the frame; a first water pump, wherein the first water pump is arranged inside the first water supply pipe; a first water spraying pipe, wherein the first water spraying pipe is communicated with the first water supply pipe; and a first nozzle, wherein the first nozzle is arranged on the first water spraying pipe and used for spraying the dust-proof liquid in the dust-proof liquid area onto the photovoltaic module. The liquid spraying mechanism also includes: a second water supply pipe, with one end communicated with the water area and the other end passing through the frame; a second water pump, wherein the second water pump is arranged inside the second water supply pipe; a second water spraying pipe, wherein the second water spraying pipe is communicated with the second water supply pipe; and a second nozzle 05 wherein the second nozzle is arranged on the second water spraying pipe and used for spraying the water in the water area onto the photovoltaic module. The liquid spraying mechanism also includes: a first valve, wherein the first valve is arranged inside the first water supply pipe; a second valve, wherein the second valve is arranged inside the second water supply pipe; the first valve and the second valve are both used for controlling the flowing or blocking of water in the water pipe. In this way, the water and dust-proof liquid are reasonably combined for cleaning of photovoltaic module, specifically, the photovoltaic module is cleaned and then sprayed with dust-proof liquid, so that the service life of photovoltaic module is prolonged, and the normal operation of photovoltaic module equipment is maintained.

In some examples of the application, the control mode of the controller is improved. The controller is specifically used as follows: when QO<Q (dust amount)<Q1, the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, and then the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; when Q1<Q<Q2, the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, then the cloth brush rod is controlled to wipe up after spraying of water, and finally the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; and when Q2<Q, the vibrating motor is controlled to vibrate the dust, then the cloth brush rod is controlled to wipe up after spraying of water, and finally the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid. A suitable dust removal method is selected according to the dust amount on the photovoltaic module, so that dust removal effect is good on the basis of improving the equipment efficiency and saving some power resources.

In some examples of the application, the application provides a safety ladder for dust removal of photovoltaic modules, and the safety ladder for dust removal of photovoltaic modules also includes: 7904405 a ladder body; steps, wherein the steps are fixed between the ladder body inside at an interval; a connecting mechanism, wherein the connecting mechanism includes a first connecting rod, 5 a second connecting rod and a third connecting rod; the first connecting rod is fixedly connected to the top of the ladder body, the second connecting rod is fixedly connected to the middle position of the first connecting rod, with the first connecting rod vertical to the second connecting rod, and the third connecting rod is fixedly connected to the top of the first connecting rod and vertical to the first connecting rod, a frame, wherein the frame is fixedly connected to the second connecting rod, and clamped with the photovoltaic module through a fastener; a dust removal mechanism, wherein the dust removal mechanism is fixedly connected to the frame and used for cleaning the dust on the photovoltaic module; a liquid spraying mechanism, wherein the liquid spraying mechanism is fixedly connected to the third connecting rod, communicated with the frame and used for spraying a liquid medium on the photovoltaic module, so as to clean or protect the photovoltaic module; a dust sensor, wherein the dust sensor is arranged on the inner wall of the frame and used for detecting the dust amount on the surface of the photovoltaic module in the frame; a vibrating motor, wherein the vibrating motor is arranged at the bottom of the frame and used for driving the frame to vibrate left and right or up and down; and a controller, wherein the controller is electrically connected to the dust removal mechanism, the liquid spraying mechanism, the dust sensor and the vibrating motor, and used for controlling the movement conditions of the dust removal mechanism, the liquid spraying mechanism and the vibrating motor according to the dust amount on the photovoltaic module.

In some examples of the application, the dust removal mechanism includes:

a servo motor, wherein the servo motor is fixedly connected to the frame; 7904405 a coupling rod, wherein the coupling rod is arranged on the output shaft of the servo motor; a dust removal brush rod, wherein the dust removal brush rod is connected to the coupling rod and used for removing dust on the photovoltaic module; and a cloth brush rod, wherein the cloth brush rod is connected to the coupling rod and used for sucking sewage on the photovoltaic module and wiping up stains.

In some examples of the application, the liquid spraying mechanism includes: a box body, wherein the box body is fixedly connected to the third connecting rod and provided with a dust-proof liquid area and a water area inside; a partition is arranged between the dust-proof liquid area and the water area, so as to separate the dust-proof liquid area from the water area.

In some examples of the application, the liquid spraying mechanism also includes: a first water supply pipe, with one end communicated with the dust-proof liquid area and the other end passing through the frame; a first water pump, wherein the first water pump is arranged inside the first water supply pipe; a first water spraying pipe, wherein the first water spraying pipe is communicated with the first water supply pipe; and a first nozzle, wherein the first nozzle is arranged on the first water spraying pipe and used for spraying the dust-proof liquid in the dust-proof liquid area onto the photovoltaic module.

In some examples of the application, the liquid spraying mechanism also includes: a second water supply pipe, with one end communicated with the water area and the other end passing through the frame; a second water pump, wherein the second water pump is arranged inside the second water supply pipe;

a second water spraying pipe, wherein the second water spraying pipe is communicated with the second water supply pipe; and a second nozzle, wherein the second nozzle is arranged on the second water spraying pipe and used for spraying the water in the water area onto the photovoltaic module.

In some examples of the application, the liquid spraying mechanism also includes: a first valve, wherein the first valve 1s arranged inside the first water supply pipe; and a second valve, wherein the second valve 1s arranged inside the second water supply pipe; the first valve and the second valve are both used for controlling the flowing or blocking of water in the water pipe.

In some examples of the application, the safety ladder for dust removal of photovoltaic modules also includes: a support leg, wherein the support leg is fixedly connected to the bottoms of the first connecting rod, the second connecting rod and the third connecting rod; and a side brace, wherein the side brace 1s hinged at the middle position of the ladder body.

In some examples of the application, the safety ladder for dust removal of photovoltaic modules also includes: a fixing pad, wherein the fixing pad 1s fixedly connected to the bottom of the ladder body and that of the side brace; and a friction sleeve, wherein the friction sleeve is sleeved on the step, and its outer surface is provided with a plurality of protrusions.

In some examples of the application, the controller is specifically used as follows: when Q0<Q (dust amount) <Q1, the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, and then the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; when Q1<Q<Q2, the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, then the cloth brush rod 1s controlled to wipe up after spraying of water, and finally the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; and when Q2<Q, the vibrating motor is controlled to vibrate the dust, then the cloth brush rod is controlled to wipe up after spraying of water, and finally the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid.

Description of attached drawings

FIG. 1 is a structural schematic diagram of a safety ladder for dust removal of photovoltaic modules according to the present disclosure;

FIG. 2 is a top view of a safety ladder for dust removal of photovoltaic modules according to the present disclosure;

FIG. 3 is a partial schematic view of the liquid spraying mechanism according to the present disclosure;

FIG. 4 is a structural schematic diagram of the connection between the ladder body and the side brace according to the present disclosure;

FIG. 5 is a schematic structural diagram of the steps according to the present disclosure;

FIG. 6 is a schematic structural diagram of the frame according to the present disclosure;

FIG. 7 is a schematic structural view of the first connecting rod according to the present disclosure;

FIG. 8 is a schematic structural view of the third connecting rod according to the present disclosure.

In the figures, ladder body; 11. step; 21. first connecting rod; 22. second connecting rod; 23. third connecting rod; 24, support leg; 3. frame; 31. fastener; 10. photovoltaic module; 41. servo motor; 42. dust removal brush rod; 43. cloth brush rod; 44. coupling rod; 5. box body; 51. dust-proof liquid area; 52. water area; 53. first water pump; 54. second water pump; 55. first water supply pipe; 56. second water supply pipe; 57. first valve; 58. second valve; 59. first water spraying pipe; 60. second water spraying pipe; 61. first nozzle; 62. second nozzle; 6. dust sensor; 7. vibrating motor; 12. friction sleeve; 121. protrusion; 13. side brace; and 131. fixing pad.

Specific embodiments

The specific examples of the present disclosure will be described in further detail below with reference to the attached drawings and examples. The following examples are used to illustrate the present disclosure, but are not used to limit the scope of the present disclosure.

In the description of the application, it should be understood that the azimuth or positional relationship indicated by the terms "up", "down", “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, "inside" and "outside” is based on the azimuth or positional relationship shown in the attached drawings, and is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as limiting the application.

The terms "first" and "second" are only used for describing purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, the features defined as "first" and "second" may include one or more of these features explicitly or implicitly. In the description of the application, "plural" means two or more, unless otherwise specified.

In the description of the application, it should be noted that unless otherwise specified and limited, the terms "installation and "connection" should be broadly understood, for example, they can be fixed connection, detachable connection or integrated; they can be mechanical connection or electrical connection; they can be direct connection, or indirect connection through an intermediary; they can be the internal connection of two elements. For those skilled in the art,

the specific meanings of the above terms in the application can be understood according © 904405 specific situations.

In some examples of the application, the application provides a safety ladder for dust removal of photovoltaic modules 10, and the safety ladder for dust removal of photovoltaic modules 10 also includes: a ladder body 1; steps 11, wherein the steps are fixed between the ladder body 1 inside at an interval; a connecting mechanism, wherein the connecting mechanism includes a first connecting rod 21, a second connecting rod 22 and a third connecting rod 23; the first connecting rod 21 is fixedly connected to the top of the ladder body 1, the second connecting rod 22 is fixedly connected to the middle position of the first connecting rod 21, with the first connecting rod 21 vertical to the second connecting rod 22, and the third connecting rod 23 is fixedly connected to the top of the first connecting rod 21 and vertical to the first connecting rod 21; a frame 3, wherein the frame 3 is fixedly connected to the second connecting rod 22, and clamped with the photovoltaic module 10 through a fastener 31; a dust removal mechanism, wherein the dust removal mechanism is fixedly connected to the frame 3 and used for cleaning the dust on the photovoltaic module 10; a liquid spraying mechanism, wherein the liquid spraying mechanism is fixedly connected to the third connecting rod 23, communicated with the frame 3 and used for spraying a liquid medium on the photovoltaic module 10, so as to clean or protect the photovoltaic module 10; a dust sensor 6, wherein the dust sensor 6 is arranged on the inner wall of the frame 3 and used for detecting the dust amount on the surface of the photovoltaic module 10 in the frame 3; a vibrating motor 7, wherein the vibrating motor 7 is arranged at the bottom of the frame 3 and used for driving the frame 3 to vibrate left and right or up and down; and a controller, wherein the controller is electrically connected to the dust removal mechanism,

the liquid spraying mechanism, the dust sensor 6 and the vibrating motor 7, and used for controlling the movement conditions of the dust removal mechanism, the liquid spraying mechanism and the vibrating motor 7 according to the dust amount on the photovoltaic module 10.

In some examples of the application, the dust removal mechanism includes: a servo motor 41, wherein the servo motor 41 is fixedly connected to the frame 3; a coupling rod 44, wherein the coupling rod 44 is arranged on the output shaft of the servo motor 41; a dust removal brush rod 42, wherein the dust removal brush rod 42 is connected to the coupling rod 44 and used for removing dust on the photovoltaic module 10; and a cloth brush rod 43, wherein the cloth brush rod 43 is connected to the coupling rod 44 and used for sucking sewage on the photovoltaic module 10 and wiping up stains.

In some examples of the application, the liquid spraying mechanism includes: a box body 5, wherein the box body 5 is fixedly connected to the third connecting rod 23 and provided with a dust-proof liquid area 51 and a water area 52 inside; a partition is arranged between the dust-proof liquid area 51 and the water area 52, so as to separate the dust-proof liquid area 51 from the water area 52.

In some examples of the application, the liquid spraying mechanism also includes: a first water supply pipe 55, with one end communicated with the dust-proof liquid area 51 and the other end passing through the frame 3; a first water pump 53, wherein the first water pump 53 is arranged inside the first water supply pipe 55; a first water spraying pipe 59, wherein the first water spraying pipe 59 is communicated with the first water supply pipe 55; and a first nozzle 61, wherein the first nozzle 61 is arranged on the first water spraying pipe 59 and used for spraying the dust-proof liquid in the dust-proof liquid area 51 onto the photovoltaic 904405 module 10.

In some examples of the application, the liquid spraying mechanism also includes: a second water supply pipe 56, with one end communicated with the water area 52 and the other end passing through the frame 3; a second water pump 54, wherein the second water pump 54 is arranged inside the second water supply pipe 56; a second water spraying pipe 60, wherein the second water spraying pipe 60 is communicated with the second water supply pipe 56; and a second nozzle 62, wherein the second nozzle 62 is arranged on the second water spraying pipe 60 and used for spraying the water in the water area 52 onto the photovoltaic module 10.

In some examples of the application, the liquid spraying mechanism also includes: a first valve 57, wherein the first valve 57 is arranged inside the first water supply pipe 55; and a second valve 58, wherein the second valve 58 is arranged inside the second water supply pipe 56; the first valve 57 and the second valve 58 are both used for controlling the flowing or blocking of water in the water pipe.

In some examples of the application, the safety ladder for dust removal of photovoltaic modules also includes: a support leg 24, wherein the support leg 24 is fixedly connected to the bottoms of the first connecting rod 21, the second connecting rod 22 and the third connecting rod 23; and a side brace 13, wherein the side brace 13 is hinged at the middle position of the ladder body 1.

In some examples of the application, the safety ladder for dust removal of photovoltaic modules also includes: 7904405 a fixing pad 131, wherein the fixing pad 131 is fixedly connected to the bottom of the ladder body 1 and that of the side brace 13; and a friction sleeve 12, wherein the friction sleeve 12 is sleeved on the step 11, and its outer surface is provided with a plurality of protrusions 121.

In some examples of the application, the controller is specifically used as follows: when QO<Q (dust amount) <Q1, it means that there is a little dust amount on the photovoltaic module 10 at this time, and it is only necessary to simply brush: the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, and then the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; when Q1<Q<Q2, it means that there is a large dust amount on the photovoltaic module 10 at this time, and it is necessary to brush and wash with water: the dust removal brush rod 42 is controlled to clean, after cleaning, the vibrating motor 7 is controlled to vibrate the dust, then the cloth brush rod 43 is controlled to wipe up after spraying of water, and finally the dust removal brush rod 42 is controlled to brush evenly after spraying of dust-proof liquid; and when Q2<Q, it means that there is a large dust amount on the photovoltaic module 10 at this time, and it even may have formed a block so that ordinary brushing doesn't work, so it is necessary to wash with water and then wipe: the vibrating motor 7 is controlled to vibrate the dust, then the cloth brush rod is 43 controlled to wipe up after spraying of water, and finally the dust removal brush rod 42 is controlled to brush evenly after spraying of dust-proof liquid.

Among them, QO, Q1 and Q2, the preset dust amounts, increase in turn, and they can be adjusted according to the actual situation.

The working principle of the application is as follows: when in use, the ladder body 1 leans against the edge of the roof, is strengthened by the side brace 13 and kept stable by the fixing pad 131; the support legs 24 under the first connecting rod 21, the second connecting rod 22 and the third connecting rod 23 are placed on the flat position of the roof, and the photovoltaic module 10 1s detached from the power station and clamped on the frame 3 through the fastener 31; the dust sensor 6 detects the dust amount on the surface of the photovoltaic module 10, the servo motor 41 controls the dust removal brush rod 42 and the cloth brush rod 43 to rotate and wipe, the first water pump 53 drives the dust removal liquid to be sprayed on the photovoltaic module 10 from the first nozzle 61, and the second water pump 54 drives the water to be sprayed on the photovoltaic module 10 from the second nozzle 62; according to different dust amounts on the photovoltaic module 10, different treatment methods are selected, and the vibrating motor 7 drives the frame 3 to vibrate up and down or left and right to shake off the dust.

According to the first concept of the application, due to the improvement of the dust removal structure, the dust removal mechanism includes: a servo motor 41, wherein the servo motor 41 is fixedly connected to the frame 3; a coupling rod 44, wherein the coupling rod 44 is arranged on the output shaft of the servo motor 41; a dust removal brush rod 42, wherein the dust removal brush rod 42 is connected to the coupling rod 44 and used for removing dust on the photovoltaic module 10; a cloth brush rod 43, wherein the cloth brush rod 43 is connected to the coupling rod 44 and used for sucking sewage on the photovoltaic module 10 and wiping up stains. In this way, the dust removal structure is simpler and the dust removal effect is better, so that the working efficiency of photovoltaic modules is improved.

According to the second concept of the application, due to the improvement of the cleaning structure, the liquid spraying mechanism includes: a box body 5, wherein the box body 5 is fixedly connected to the third connecting rod 23 and provided with a dust-proof liquid area 51 and a water area 52 inside; a partition is arranged between the dust-proof liquid area 51 and the water area 52, so as to separate the dust-proof liquid area 51 from the water area 52. The liquid spraying mechanism also includes: a first water supply pipe 55, with one end communicated with the dust-proof liquid area 51 and the other end passing through the frame 3; a first water pump 53, wherein the first water pump 53 is arranged inside the first water supply pipe 55; a first water spraying pipe 59, wherein the first water spraying pipe 59 is communicated with the first water supply pipe 55; and a first nozzle 61, wherein the first nozzle 61 is arranged on the first water spraying pipe 59 and used for spraying the dust-proof liquid in the dust-proof liquid area 51 onto the photovoltaic module 10. The liquid spraying mechanism also includes: a second water supply pipe 56, with one end communicated with the water area 52 and the other end passing through the frame 3; a second water pump 54, wherein the second water pump 54 is arranged inside the second water supply pipe 56; a second water spraying pipe 60, wherein the second water spraying pipe 60 is communicated with the second water supply pipe 56; and a second nozzle 62, wherein the second nozzle 62 is arranged on the second water spraying pipe 60 and used for spraying the water in the water area 52 onto the photovoltaic module 10. The liquid spraying mechanism also includes: a first valve 57, wherein the first valve 57 is arranged inside the first water supply pipe 55; a second valve 58, wherein the second valve 58 is arranged inside the second water supply pipe 56; the first valve 57 and the second valve 58 are both used for controlling the flowing or blocking of water in the water pipe. In this way, the water and dust-proof liquid are reasonably combined for cleaning of photovoltaic module 10, specifically, the photovoltaic module 10 is cleaned and then sprayed with dust-proof liquid, so that the service life of photovoltaic module 10 is prolonged, and the normal operation of photovoltaic module 10 equipment is maintained.

According to the third concept of the application, due to the improvement of the control mode of the controller, the controller is specifically used as follows: when Q0<Q (dust amount) <Q1, the dust removal brush rod 42 is controlled to clean, after cleaning, the vibrating motor 7 is controlled to vibrate the dust, and then the dust removal brush rod 42 is controlled to brush evenly after spraying of dust-proof liquid; when Q1<Q<Q2, the dust removal brush rod 42 is controlled to clean, after cleaning, the vibrating motor 7 is controlled to vibrate the dust, then the cloth brush rod 43 is controlled to wipe up after spraying of water, and finally the dust removal brush rod 42 is controlled to brush evenly after spraying of dust-proof liquid; when Q2<Q, the vibrating motor 7 is controlled to vibrate the dust, then the cloth brush rod 43 is controlled to wipe up after spraying of water, and finally the dust removal brush rod 42 is controlled to brush evenly after spraying of dust-proof liquid. A suitable dust removal method is selected according to the dust amount on the photovoltaic module 10, so that dust removal effect is good on the basis of improving the equipment efficiency and saving some power resources.

The above are only the preferred examples of the present disclosure, and it should be noted that any ordinary person skilled in the art can make several improvements and substitutions without departing from the technical principles of the present disclosure, and these improvements and substitutions should also be regarded as the protection scope of the present disclosure.

Claims

CLAIMS LU504405

1. A safety ladder for dust removal of photovoltaic modules, comprising photovoltaic modules, and also comprising: a ladder body; steps, wherein the steps are fixed between the ladder body inside at an interval; a connecting mechanism, wherein the connecting mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod; the first connecting rod is fixedly connected to the top of the ladder body, the second connecting rod is fixedly connected to the middle position of the first connecting rod, with the first connecting rod vertical to the second connecting rod, and the third connecting rod is fixedly connected to the top of the first connecting rod and vertical to the first connecting rod, a frame, wherein the frame is fixedly connected to the second connecting rod, and clamped with the photovoltaic module through a fastener; a dust removal mechanism, wherein the dust removal mechanism is fixedly connected to the frame and used for cleaning the dust on the photovoltaic module; a liquid spraying mechanism, wherein the liquid spraying mechanism is fixedly connected to the third connecting rod, communicated with the frame and used for spraying a liquid medium on the photovoltaic module, so as to clean or protect the photovoltaic module; a dust sensor, wherein the dust sensor is arranged on the inner wall of the frame and used for detecting the dust amount on the surface of the photovoltaic module in the frame; a vibrating motor, wherein the vibrating motor is arranged at the bottom of the frame and used for driving the frame to vibrate left and right or up and down; and a controller, wherein the controller is electrically connected to the dust removal mechanism, the liquid spraying mechanism, the dust sensor and the vibrating motor, and used for controlling the movement conditions of the dust removal mechanism, the liquid spraying mechanism and the 904405 vibrating motor according to the dust amount on the photovoltaic module.

2. The safety ladder for dust removal of photovoltaic modules according to claim 1, wherein the dust removal mechanism comprises: a servo motor, wherein the servo motor is fixedly connected to the frame; a coupling rod, wherein the coupling rod is arranged on the output shaft of the servo motor; a dust removal brush rod, wherein the dust removal brush rod is connected to the coupling rod and used for removing dust on the photovoltaic module; and a cloth brush rod, wherein the cloth brush rod is connected to the coupling rod and used for sucking sewage on the photovoltaic module and wiping up stains.

3. The safety ladder for dust removal of photovoltaic modules according to claim 1, wherein the liquid spraying mechanism comprises: a box body, wherein the box body is fixedly connected to the third connecting rod and provided with a dust-proof liquid area and a water area inside; a partition is arranged between the dust-proof liquid area and the water area, so as to separate the dust-proof liquid area from the water area.

4. The safety ladder for dust removal of photovoltaic modules according to claim 3, wherein the liquid spraying mechanism also comprises: a first water supply pipe, with one end communicated with the dust-proof liquid area and the other end passing through the frame; a first water pump, wherein the first water pump is arranged inside the first water supply pipe; a first water spraying pipe, wherein the first water spraying pipe is communicated with the first water supply pipe; a first nozzle, wherein the first nozzle is arranged on the first water spraying pipe and used for spraying the dust-proof liquid in the dust-proof liquid area onto the photovoltaic module.

5. The safety ladder for dust removal of photovoltaic modules according to claim 3, wherein the liquid spraying mechanism also comprises: a second water supply pipe, with one end communicated with the water area and the other end passing through the frame; a second water pump, wherein the second water pump is arranged inside the second water supply pipe; a second water spraying pipe, wherein the second water spraying pipe is communicated with the second water supply pipe; and a second nozzle, wherein the second nozzle is arranged on the second water spraying pipe and used for spraying the water in the water area onto the photovoltaic module.

6. The safety ladder for dust removal of photovoltaic modules according to any one of claims 4-5, wherein the liquid spraying mechanism also comprises: a first valve, wherein the first valve is arranged inside the first water supply pipe; and a second valve, wherein the second valve is arranged inside the second water supply pipe; the first valve and the second valve are both used for controlling the flowing or blocking of water in the water pipe.

7. The safety ladder for dust removal of photovoltaic modules according to claim 1, wherein the safety ladder for dust removal of photovoltaic modules also comprises: a support leg, wherein the support leg is fixedly connected to the bottoms of the first connecting rod, the second connecting rod and the third connecting rod; and a side brace, wherein the side brace is hinged at the middle position of the ladder body.

8. The safety ladder for dust removal of photovoltaic modules according to claim 7, wherein the safety ladder also comprises: a fixing pad, wherein the fixing pad is fixedly connected to the bottom of the ladder body and that of the side brace; and a friction sleeve, wherein the friction sleeve is sleeved on the step, and its outer surface is provided with a plurality of protrusions.

9. The safety ladder for dust removal of photovoltaic modules according to any one of claims 1-5, wherein the controller 1s specifically used as follows: when Q0 <Q (dust amount) <Q1, the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, and then the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; when Q1< Q < Q2, the dust removal brush rod is controlled to clean, after cleaning, the vibrating motor is controlled to vibrate the dust, then the cloth brush rod is controlled to wipe up after spraying of water, and finally the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid; and when Q2 <Q, the vibrating motor is controlled to vibrate the dust, then the cloth brush rod is controlled to wipe up after spraying of water, and finally the dust removal brush rod is controlled to brush evenly after spraying of dust-proof liquid.