CN210753985U

CN210753985U - Photovoltaic board self-cleaning device

Info

Publication number: CN210753985U
Application number: CN201921653821.XU
Authority: CN
Inventors: 余大强; 刘正伟; 徐玉豪
Original assignee: Boson Robotics Ltd
Current assignee: Boson Robotics Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-16
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to the technical field of photovoltaic panel cleaning equipment, in particular to an automatic cleaning device for a photovoltaic panel, which comprises a first bracket and a second bracket which are respectively arranged at two sides of the photovoltaic panel, a cleaning component, a traction rope and a mounting plate, wherein the cleaning component and the traction rope are arranged between the first bracket and the second bracket; the two ends of the cleaning assembly are respectively connected with the mounting plate, the mounting plate is provided with a driving wheel and at least two second positioning pulleys, the mounting positions of the second positioning pulleys are lower than the driving wheel, the second positioning pulleys are distributed on the two sides of the driving wheel, and the traction ropes are respectively in winding connection with the driving wheel and the second positioning pulleys; the cleaning assembly comprises a rolling brush, and the rolling brush is fixedly connected with the driving wheel. The utility model discloses a location pulley highly draws low with the haulage rope, has avoided the haulage rope to cast the shadow on the photovoltaic board effectively.

Description

Photovoltaic board self-cleaning device

Technical Field

The utility model relates to a photovoltaic board cleaning device technical field particularly, relates to a photovoltaic board self-cleaning device.

Background

In order to realize the automatic cleaning of the photovoltaic panel, a photovoltaic panel automatic cleaning device exists in the prior art. The automatic cleaning device for the photovoltaic panel generally comprises a brush, wherein the brush is spanned on the surface of the photovoltaic panel, two ends of the brush are fixedly connected with a traction rope, and the traction rope moves under the driving action of a motor, so that the brush is driven to move on the surface of the photovoltaic panel, and the purpose of cleaning the photovoltaic panel is achieved.

However, the existing automatic cleaning devices for photovoltaic panels all have the following disadvantages: in order to ensure that the traction rope drives the hairbrush to move on the surface of the photovoltaic panel, the traction rope and the hairbrush are basically arranged on the same plane, and the hairbrush is positioned above the photovoltaic panel, so that the traction rope is also positioned above the photovoltaic panel, and the traction rope casts a shadow on the photovoltaic panel; and because the shadow cast by the traction rope on the photovoltaic panel can continuously exist, the luminous efficiency of the photovoltaic panel is greatly influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one aspect of the above technical problems to a certain extent, the present invention provides an automatic cleaning device for a photovoltaic panel, including a first bracket and a second bracket, which are respectively disposed at two sides of the photovoltaic panel, and a cleaning assembly, a pulling rope and a mounting plate, wherein the cleaning assembly and the pulling rope are disposed between the first bracket and the second bracket;

the two ends of the cleaning assembly are respectively connected with the mounting plate, the mounting plate is provided with a driving wheel and at least two second positioning pulleys, the mounting positions of the second positioning pulleys are lower than the driving wheel, the second positioning pulleys are distributed on the two sides of the driving wheel, and the traction ropes are respectively in winding connection with the driving wheel and the second positioning pulleys;

the cleaning assembly comprises a rolling brush, and the rolling brush is fixedly connected with the driving wheel.

Optionally, a reversing pulley is arranged on the second support, the traction rope is connected with the reversing pulley in a winding mode, and the reversing pulley is elastically connected with the second support.

Optionally, the second support is provided with a movable hole, a connecting rod is arranged in the movable hole, one end of the connecting rod is connected with the reversing pulley, the other end of the connecting rod is provided with a limiting head, and a spring is arranged between the limiting head and the second support.

Optionally, the traction rope comprises a first rope segment and a second rope segment, the mounting plate comprises a first mounting plate and a second mounting plate which are respectively arranged at two ends of the cleaning assembly, and the first mounting plate, the first rope segment, the second mounting plate and the second rope segment are sequentially connected end to form a closed loop;

the second rope section is in winding connection with the driving wheel located on the first mounting plate, and the first rope section is in winding connection with the driving wheel located on the second mounting plate.

Optionally, a hook is arranged on the mounting plate, and the end of the traction rope is connected with a hanging piece hooked on the hook.

Optionally, one side of the hook is integrally connected with the mounting plate, and the other side of the hook is bent into a hook-shaped structure.

Optionally, a driving motor is arranged on the first support, two rope grooves arranged in parallel are arranged on an output shaft of the driving motor, and the first rope section and the second rope section are respectively wound in the different rope grooves.

Optionally, the first support is further provided with two parallel supporting seats, and the output shaft is bridged between the two supporting seats.

Optionally, the cleaning device further comprises a plurality of auxiliary wheels, wherein the auxiliary wheels are rotatably connected with the mounting plate or the cleaning assembly, and the auxiliary wheels are used for being placed on the photovoltaic panel and rotating on the surface of the photovoltaic panel.

Optionally, a surrounding plate is arranged on the mounting plate, the driving wheel and the second positioning pulley are located in a space enclosed by the surrounding plate, and the surrounding plate is buckled with the cover.

Compared with the prior art, the utility model discloses a photovoltaic board self-cleaning device's beneficial effect lies in: two positioning pulleys are arranged below two sides of the driving wheel, so that the height of the traction rope is reduced, shadows of the traction rope on the photovoltaic panel are effectively avoided, and the efficiency of the photovoltaic panel is improved; the problem that the tensioning state of the traction rope is poor due to thermal barrier contraction is solved by the aid of the elastic connection between the reversing pulley and the second support, the pulley and the second support are in elastic connection through the connecting rod in a sleeved mode with the spring, and the traction rope tensioning device is simple in structure, convenient to assemble and convenient to replace the spring.

Drawings

Fig. 1 is a schematic view of the overall structure of an automatic cleaning device for a photovoltaic panel according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at D;

FIG. 4 is an enlarged view of a portion B of FIG. 1;

FIG. 5 is a view showing an assembly structure of the diverting pulley, the connecting rod and the spring according to the embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 1 at C;

fig. 7 is a mounting position diagram of the motor output shaft and the support seat according to the embodiment of the present invention;

FIG. 8 is a diagram of a winding structure of a pulling rope and a mounting plate according to an embodiment of the present invention;

FIG. 9 is a schematic view of the connection position of the mounting plate and the brush cover according to the embodiment of the present invention;

fig. 10 is a mounting structure diagram of the mounting plate and the cover according to the embodiment of the present invention.

Description of reference numerals:

1-a photovoltaic panel; 21-a first scaffold; 22-a second support; 221-a movable hole; 23-a connecting rod; 231-a limiting head; 24-a pulley yoke; 25-a spring; 26-a first positioning pulley; 3-rolling and brushing; 31-a brush cover; 4-a hauling rope; 41-a first rope segment; 42-a second rope segment; 43-hanging parts; 5, mounting a plate; 51-a transmission wheel; 52-a second positioning pulley; 53-hook; 55-a first mounting plate; 56-a second mounting plate; 57-coaming; 58-a lid; 581-a thread passing port; 61-an output shaft; 62-a support seat; 63-rope grooves; 7-a diverting pulley; 8-auxiliary wheels; z-up-down direction.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

If there is a description in an embodiment of the present invention referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In this description, the Z direction is upward, and the opposite direction is downward.

As shown in fig. 1, the utility model discloses a photovoltaic board self-cleaning device for clean sand and dust, impurity etc. on photovoltaic board 1 surface. The automatic cleaning device for the photovoltaic panel comprises a first support 21 and a second support 22 which are respectively arranged at two opposite sides of the photovoltaic panel 1. The pull cord 4 and the cleaning assembly are arranged between the first bracket 21 and the second bracket 22.

The cleaning assembly comprises a rolling brush 3 spanned on the surface of the photovoltaic panel 1, and two ends of the rolling brush 3 are respectively connected with a traction rope 4. The haulage rope 4 pulls the round brush 3 and moves on photovoltaic board 1 surface under the drive of motor, and round brush 3 self rotates simultaneously to realize cleaning photovoltaic board 1's purpose.

As shown in fig. 2, two ends of the rolling brush 3 are respectively connected with a mounting plate 5, the mounting plate 5 is a plate-shaped structure, the main plane of the mounting plate 5 is perpendicular to the plane of the photovoltaic panel 1, and the mounting plate 5 is close to the side edge of the photovoltaic panel (the photovoltaic panel edge is different from the edge of the photovoltaic panel 1 close to the first bracket 21 and the second bracket 22). The bottom of the mounting plate 5 is fixedly connected with a traction rope 4, and the traction rope 4 is driven by a motor to pull the mounting plate 5, so that the rolling brush 3 is driven to move on the surface of the photovoltaic panel 1.

A driving wheel 51 is arranged on the outer side surface (i.e. the side surface far away from the photovoltaic panel 1) of the mounting plate 5, the driving wheel 51 and the rolling brush 3 are coaxially arranged, and the driving wheel 51 is fixedly connected with the rolling brush 3. The transmission wheel 51 is wound with the traction rope 4, the transmission wheel 51 can be driven to rotate by pulling the traction rope 4, and the transmission wheel 51 drives the rolling brush 3 to rotate. Two sides of the transmission wheel 51 are respectively provided with a second positioning pulley 52, and the mounting positions of the two second positioning pulleys 52 on the mounting plate 5 are lower than (referring to the up-down direction Z shown in fig. 2, the lower refers to a position which is more downward relative to the direction) the mounting position of the transmission wheel 51. The ends of the traction rope 4 wound around the transmission wheel 51 extending away from the transmission wheel 51 are each passed around a second positioning pulley 52, i.e. the second positioning pulley 52 pulls the traction rope 4 down to the desired height by a certain distance.

Obviously, without the second positioning pulley 52, the traction rope 4 is at substantially the same height as the transmission wheel 51, the transmission wheel 51 is at substantially the same height as the rolling brush 3, and the rolling brush 3 is located on the upper surface of the photovoltaic panel 1, thus inevitably causing the traction rope 4 to cast a shadow on the photovoltaic panel 1. Moreover, since the shadow of the pulling rope 4 will persist, i.e. will not disappear due to the movement of the pulling rope 4, the energy conversion efficiency of the photovoltaic panel 1 will be greatly affected. In this embodiment, two second positioning pulleys 52 are arranged below two sides of the driving wheel 51, and the pulling ropes 4 extending from two sides of the driving wheel 51 are respectively wound out from the lower sides of the second positioning pulleys 52, so that compared with a mode that the pulling ropes 4 directly extend from two sides of the driving wheel 51, the height of the pulling ropes 4 is effectively reduced, shadows cast by the pulling ropes 4 on the photovoltaic panel 1 are avoided, and the efficiency of the photovoltaic panel is improved.

As shown in fig. 2, 3 and 8, the pulling rope 4 comprises a first rope portion 41 and a second rope portion 42. The mounting plates disposed at both ends of the cleaning assembly are defined as a first mounting plate 55 and a second mounting plate 56, respectively. The two ends of the first rope section 41 are respectively connected with a first mounting plate 51 and a second mounting plate 52; the two ends of the second rope portion 42 are also connected to the first mounting plate 51 and the second mounting plate 52, respectively. Therefore, the first mounting plate 55, the first rope segment 41, the second mounting plate 56 and the second rope segment 42 are sequentially connected end to form a closed loop, and the closed loop is limited by the first positioning pulley 26 and the reversing pulley 7. The second rope portion 42 is wound around the transmission wheel 51 on the first mounting plate 55, and the first rope portion 41 is wound around the transmission wheel 51 on the second mounting plate 56.

Two ends of the first rope segment 41 and two ends of the second rope segment 42 are respectively fixedly provided with a hanging piece 43, and the hanging pieces 43 are in a closed annular structure. The mounting plate 5 is fixedly provided with a hook 53. The hanging piece 43 is hooked on the hook 53 to realize the connection of the traction rope 4 and the mounting plate 5. In this embodiment, the pulling rope 4 is divided into two sections, so the pulling rope 4 actually includes four end portions, each end portion being connected to one hanger 43; the mounting plate 5 is divided into a first mounting plate 55 and a second mounting plate 56, and the first mounting plate 55 and the second mounting plate 56 are respectively provided with two hooks 53; each hanger 43 is connected with a hook 53, so that the first mounting plate 55, the first rope segment 41, the second mounting plate 56 and the second rope segment 42 are sequentially connected end to form a closed loop. When the hauling cable 4 is a section, the number of the hanging pieces 43 and the hanging hooks 53 can be adjusted.

Preferably, one side of the hook 53 is integrally connected with the mounting plate 5, and the other side of the hook 53 is bent into a hook-shaped structure.

In this embodiment, the haulage rope 4 can be installed in two sections, and haulage rope 4 is connected through couple 53 with mounting panel 5, has simplified the tensioning and the installation degree of difficulty of haulage rope 4.

As shown in fig. 4 and 5, the second bracket 22 is provided with a reversing pulley 7, the traction rope 4 passes around the reversing pulley 7 to realize that the traction rope 4 passes through the mounting plate 5 twice, and the traction rope 4 can not only pull the mounting plate 5 to move, but also drive the transmission wheel 51 to rotate.

Preferably, the diverting pulley 7 is elastically connected with the second bracket 22. The second bracket 22 is formed by fixedly connecting criss-cross fixing beams to each other. Wherein, at least one fixed beam is provided with a movable hole 221, and the movable hole 221 is a through hole penetrating through the fixed beam. The connecting rod 23 is disposed in the movable hole 221, the connecting rod 23 passes through the movable hole 221, and both ends of the connecting rod 23 extend out of the movable hole 221.

One end of the connecting rod 23 is connected with a pulley frame 24, and the reversing pulley 7 is arranged on the pulley frame 24. The other end of the connecting rod 23 is provided with a limiting head 231, and a spring 25 is arranged between the limiting head 231 and the second bracket 22. In this embodiment, the limiting head 231 is a nut, the outer wall of the connecting rod 25 is provided with an external thread, and the nut can be directly screwed on the connecting rod 25. The spring 25 is sleeved on the outer wall of the connecting rod 25, and the spring 25 is limited between the nut and the fixed beam of the second bracket 22 by the nut. If the outer diameter of the nut is smaller than the inner diameter of the helical tube of the spring 25, a washer may be provided between the spring 25 and the nut.

In the embodiment, the reversing pulley 7 is elastically connected with the second support 22, so that the problem that the tension state of the traction rope 4 is poor due to thermal barrier contraction is effectively solved. When the hauling rope 4 becomes loose due to thermal expansion, the hauling rope 4 can be tensioned under the action of the restoring force of the spring 25; when the haulage rope 4 contracts because of the low temperature, the spring 25 can be compressed, avoids haulage rope 4 fracture or destroys the connection bearing structure of haulage rope 4. In addition, in the embodiment, the elastic connection structure of the reversing pulley 7 and the second bracket 22 has a simple structure, is convenient to assemble, and facilitates the replacement of the spring.

As shown in fig. 6, 7 and 8, a driving motor is fixedly mounted on the first bracket 21. Two rope grooves 63 which are arranged in parallel are arranged on the output shaft 61 of the driving motor. The rope groove 63 is a ring groove, and the center of the ring groove coincides with the axis of the output shaft 61. The first rope portion 41 and the second rope portion 42 according to the above embodiments are respectively wound in different rope grooves 63. Preferably, two parallel supporting seats 62 are further fixedly mounted on the first bracket 21. The output shaft 61 is bridged between the two supporting seats 62, and the output shaft 61 is connected with the supporting seats 62 through bearings. Two rope grooves 63 are located between the two support seats 62.

In this embodiment, the supporting seat 62 is provided to ensure that the rotation axis of the output shaft 61 is still stably and reliably limited in the rotation state. Adopt two rope grooves 63 to wind first rope portion 41 and second rope portion 42 respectively in this embodiment, compared with the prior art, haulage rope 4 and the winding mode of motor output shaft winding only once, the pulling force of haulage rope 4 is stronger in this embodiment.

As shown in fig. 2 and 9, the photovoltaic panel cleaning apparatus of the present embodiment preferably further includes a plurality of auxiliary wheels 8, and the auxiliary wheels 8 are rotatably connected to the mounting plate 5, i.e., the auxiliary wheels 8 can rotate relative to the mounting plate 5. And the auxiliary wheel 8 is located on the inner side of the mounting plates 5 (here the inner side is the side opposite the two mounting plates 5). When the photovoltaic panel cleaning device is used for cleaning the photovoltaic panel 1, the auxiliary wheel 8 is positioned on the surface of the photovoltaic panel 1 and rotates on the surface of the photovoltaic panel 1 along with the rolling brush 3. The auxiliary wheel 8 is used for supporting the mounting plate 5 and reducing excessive abrasion of the rolling brush 3 on the surface of the photovoltaic panel 1.

Preferably, the upper part of the rolling brush 3 is provided with a brush cover 31 to prevent dust from falling on the rolling brush 3. The brush cover 31 is also provided with an auxiliary wheel 8 at the middle position, and when the rolling brush 3 moves on the surface of the photovoltaic panel 1, the auxiliary wheel 8 on the brush cover 31 also rolls on the surface of the photovoltaic panel 1. In general, the length of the rolling brush 3 is long, so that the brush cover 31 is provided with an auxiliary wheel to further support the rolling brush 3 and protect the brush hairs.

As shown in fig. 9 and 10, the connecting plate 5 is provided with a surrounding plate 57, and the surrounding plate 57 is perpendicular to the surface of the mounting plate 5. The coaming 57 is provided with a notch which is used for leading the traction rope 4 to pass through the line and abdicate. The transmission wheel 51 and the second positioning pulley 52 are positioned in a space enclosed by the enclosure plate 57. A cover 58 is snap fitted over shroud 57. The cover 58 is fixedly attached to the shroud 57 by screws. The enclosing plate 57 and the cover 58 can protect the transmission wheel 51 and the second positioning pulley 52 and reduce sand erosion.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. An automatic cleaning device for a photovoltaic panel is characterized by comprising a first bracket (21) and a second bracket (22) which are respectively arranged at two sides of the photovoltaic panel (1), a cleaning component, a traction rope (4) and a mounting plate (5), wherein the cleaning component and the traction rope (4) are arranged between the first bracket (21) and the second bracket (22);

the two ends of the cleaning assembly are respectively connected with the mounting plate (5), a driving wheel (51) and at least two second positioning pulleys (52) are arranged on the mounting plate (5), the mounting positions of the second positioning pulleys (52) are lower than the driving wheel (51), the second positioning pulleys (52) are distributed on the two sides of the driving wheel (51), and the traction rope (4) is respectively in winding connection with the driving wheel (51) and the second positioning pulleys (52);

the cleaning assembly comprises a rolling brush (3), and the rolling brush (3) is fixedly connected with the driving wheel (51).

2. The automatic cleaning device for the photovoltaic panel as recited in claim 1, wherein a reversing pulley (7) is disposed on the second support (22), the traction rope (4) is wound around the reversing pulley (7), and the reversing pulley (7) is elastically connected to the second support (22).

3. The automatic cleaning device for the photovoltaic panel as recited in claim 2, wherein the second support (22) is provided with a movable hole (221), a connecting rod (23) is arranged in the movable hole (221), one end of the connecting rod (23) is connected with the reversing pulley (7), the other end of the connecting rod (23) is provided with a limiting head (231), and a spring (25) is arranged between the limiting head (231) and the second support (22).

4. The automatic cleaning device for photovoltaic panels as claimed in claim 1, wherein the pulling rope (4) comprises a first rope section (41) and a second rope section (42), the mounting plate (5) comprises a first mounting plate (55) and a second mounting plate (56) which are respectively arranged at two ends of the cleaning assembly, and the first mounting plate (55), the first rope section (41), the second mounting plate (56) and the second rope section (42) are sequentially connected end to form a closed loop;

the second rope segment (42) is in winding connection with the driving wheel (51) on the first mounting plate (55), and the first rope segment (41) is in winding connection with the driving wheel (51) on the second mounting plate (56).

5. The automatic cleaning device for the photovoltaic panel as recited in claim 4, wherein a hook (53) is disposed on the mounting plate (5), the end of the traction rope (4) is connected with a hanging member (43), and the hanging member (43) is hung on the hook (53).

6. The automatic cleaning device for photovoltaic panels as claimed in claim 5, characterized in that said hook (53) is connected to said mounting plate (5) on one side, said hook (53) being bent in a hook-like configuration on the other side.

7. The automatic cleaning device for the photovoltaic panel as recited in claim 4, wherein a driving motor is disposed on the first support (21), two rope grooves (63) disposed in parallel are disposed on an output shaft (61) of the driving motor, and the first rope section (41) and the second rope section (42) are respectively wound in the two rope grooves (63).

8. An automatic cleaning device for photovoltaic panels as claimed in claim 7, characterized in that said first support (21) is further provided with two parallel supporting seats (62), said output shaft (61) being bridged between said two supporting seats (62).

9. An automatic cleaning device for photovoltaic panels according to any one of claims 1 to 8, characterized in that it further comprises a plurality of auxiliary wheels (8), said auxiliary wheels (8) being rotatably connected to said mounting plate (5) or to said cleaning assembly, said auxiliary wheels (8) being intended to be placed on said photovoltaic panel (1) and to rotate on the surface of said photovoltaic panel (1).

10. The automatic cleaning device for the photovoltaic panel as recited in claim 9, further comprising a surrounding plate (57) and a cover (58), wherein the surrounding plate (57) is fixedly arranged on the mounting plate (5), the driving wheel (51) and the second positioning pulley (52) are both located in a space enclosed by the surrounding plate (57), and the surrounding plate (57) is connected with the cover (58) in a buckling manner.