Cleaning brush device

Abstract

The utility model relates to the technical field of cleaning brushes, in particular to a cleaning brush device which comprises a cleaning brush mechanism, the cleaning brush mechanism comprises a shell base, a motor driver, a motor and a cleaning brush, the shell base comprises a fixing base and a protective cover which are assembled mutually, and a first cavity and a second cavity which are separated from each other are arranged in the protective cover. The motor driver and the motor are installed in the first cavity and the second cavity respectively, the motor driver is electrically connected with the motor, one end of an output shaft of the motor penetrates out of the shell base to be connected with the cleaning brush, an impeller is installed at the other end of the output shaft of the motor located in the second cavity, and a heat dissipation through hole is formed in the protective cover. And the second cavity is communicated with the outside through the heat dissipation through holes. The cleaning brush device is simple in overall structure, space-saving, low in manufacturing cost and high in heat dissipation efficiency, the service life of the motor is prolonged, and the cleaning brush device can continuously and stably operate in the high-strength and high-temperature working environment.

Description

Technical Field

[0001] This utility model relates to the field of cleaning brush technology, and specifically to a cleaning brush device. Background Technology

[0002] Existing handheld cleaning brushes used for cleaning photovoltaic panels generate a lot of heat when the motor operates for extended periods during cleaning. Current cooling methods involve adding a fan to air-cool the motor that drives the brush disc. However, the fan itself also requires a motor, and its structure is relatively complex, resulting in high manufacturing costs and low heat dissipation efficiency. Under prolonged high-load operation or in high ambient temperatures, it is difficult to dissipate the heat, affecting the motor's lifespan. Utility Model Content

[0003] The present invention aims to provide a cleaning brush device to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a cleaning brush device, comprising a cleaning brush mechanism, including a housing, a motor driver, a motor, and a cleaning brush. The housing includes a fixed base and a protective cover that are assembled together. The protective cover has a first chamber and a second chamber that are separated from each other. The motor driver and the motor are respectively installed in the first chamber and the second chamber. The motor driver and the motor are electrically connected. One end of the output shaft of the motor passes through the housing and is connected to the cleaning brush. An impeller is installed at the other end of the output shaft of the motor located in the second chamber. The protective cover has heat dissipation holes, and the second chamber communicates with the outside through the heat dissipation holes.

[0005] Preferably, the impeller has an inner cavity, and multiple guide holes communicating with the inner cavity are provided on the impeller along the circumferential direction.

[0006] Preferably, a metal heat sink is provided on the side of the protective cover opposite to the first chamber and away from the second chamber, the motor driver is mounted on the metal heat sink, and a flexible silicone heat-conducting sheet is provided between the motor driver and the metal heat sink.

[0007] Preferably, the heat dissipation through-hole includes a first heat dissipation through-hole extending longitudinally on the upper periphery of the protective cover and a second heat dissipation through-hole extending laterally on the lower periphery of the protective cover, and both the first heat dissipation through-hole and the second heat dissipation through-hole are connected to the second chamber.

[0008] Preferably, it also includes a grip rod and a connecting frame, wherein the grip rod is a telescopic and adjustable grip rod, and the cleaning brush mechanism is connected to the grip rod through the connecting frame.

[0009] Preferably, a control module is installed on the grip rod for power supply and control of the motor and water pump. A wiring hole is provided on the protective cover, and a wiring is installed in the wiring hole. The control module is electrically connected to the motor driver and the motor through the wiring. A water inlet pipe connected to the cleaning brush is provided on the fixed base for connecting an external water pump.

[0010] Preferably, it also includes an angle adjuster, through which the grip rod and the connecting frame, and the housing of the cleaning brush mechanism and the connecting frame are rotatably connected to achieve angle adjustment.

[0011] Preferably, the angle adjuster includes two coaxially arranged coupling blocks and two rotating blocks, wherein one coupling block and one rotating block are detachably fixedly assembled, and the other coupling block and the other rotating block are detachably fixedly assembled, and the two rotating blocks are rotatably arranged between the two coupling blocks to achieve angle adjustment.

[0012] Preferably, the angle adjuster further includes a threaded handle and a nut. The coupling block and the rotating block are respectively provided with a central shaft hole. The opposite sides of the coupling block and the rotating block are respectively provided with serrated parts along the circumferential direction. The coupling block and the rotating block are detachably fixedly assembled by meshing the serrated parts. The opposite sides of the two rotating blocks are respectively provided with a sector groove and a sector block. The sector block of the rotating block and the sector groove of the other rotating block are correspondingly and movably engaged to realize the angle adjustment. The threaded handle passes through the central shaft hole and locks in place with the nut.

[0013] Preferably, there are two sector blocks and two sector slots on the rotating block. The sector blocks and sector slots are arranged alternately along the circumferential direction, and the two sector blocks and two sector slots are respectively arranged opposite to each other.

[0014] This utility model has the following beneficial effects:

[0015] The cleaning brush is driven by a motor driver to rotate, thereby cleaning the photovoltaic panel. Simultaneously, the motor's rotation drives an impeller at the other end of its output shaft to rotate, cutting air and creating airflow. This allows the heat generated by the motor in the second chamber to be transferred to the outside of the housing through heat dissipation holes, achieving rapid heat dissipation. Furthermore, by installing the motor driver and motor in the first and second chambers respectively, they are placed in independent chambers. The partition wall between the first and second chambers effectively reduces the heat transferred from the motor to the motor driver, providing insulation and preventing the motor driver from shutting down due to high temperature. This cleaning brush device has a simple overall structure, saves space, has low manufacturing cost, provides rapid heat dissipation, extends the motor's lifespan, and can operate stably even in high-intensity and high-temperature working environments. Attached Figure Description

[0016] Figure 1This is a schematic diagram of an embodiment of the present invention from one angle.

[0017] Figure 2 This is a schematic diagram of an embodiment of the present invention from another angle.

[0018] Figure 3 This is a top view of an embodiment of the present invention.

[0019] Figure 4 This is an exploded view of the cleaning brush mechanism according to an embodiment of the present invention.

[0020] Figure 5 This is a cross-sectional view of the housing in an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the internal structure of the protective cover according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the angle adjuster according to an embodiment of the present invention.

[0023] Figure 8 This is an exploded view of the angle adjuster according to an embodiment of the present invention.

[0024] Figure labels: 1. Fixed base, 2. Protective cover, 3. Motor driver, 4. Motor, 5. Cleaning brush, 6. First chamber, 7. Second chamber, 8. Impeller, 9. First heat dissipation hole, 10. Second heat dissipation hole, 11. Inner cavity, 12. Guide hole, 13. Metal heat sink, 14. Holding rod, 15. Connecting bracket, 16. Control module, 17. Wiring, 18. Water inlet pipe, 19. Coupling block, 20. Rotating block, 21. Threaded handle, 22. Nut, 23. Serrated part, 24. Sector groove, 25. Sector block. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] See Figure 1-8As shown in the figure, as an embodiment of the present invention, a cleaning brush device is provided, including a cleaning brush mechanism, which includes a housing, a motor driver 3, a motor 4, and a cleaning brush 5. The motor 4 is specifically a brushless motor. The housing includes a fixed seat 1 and a protective cover 2 that are assembled with each other. The protective cover 2 is provided with a first chamber 6 and a second chamber 7 that are separated from each other. The motor driver 3 and the motor 4 are respectively installed in the first chamber 6 and the second chamber 7. The protective cover 2 protects the motor driver 3 and the motor 4 and can effectively prevent water from splashing into the interior during cleaning, thus ensuring the working performance of the motor driver 3 and the motor 4. The motor driver 3 and the motor 4 are electrically connected. One end of the output shaft of the motor 4 passes through the fixed seat 1 of the housing and is connected to the cleaning brush 5. The other end of the output shaft of the motor 4 located in the second chamber 7 is equipped with an impeller 8. The protective cover 2 is provided with heat dissipation holes, and the second chamber 7 is connected to the outside through the heat dissipation holes. The motor driver 3 drives the motor 4 to rotate, which in turn drives the cleaning brush 5 to rotate, thus cleaning the photovoltaic panel. Simultaneously, the rotation of the motor 4 drives the impeller 8 at the other end of its output shaft to rotate, cutting the air and creating an airflow. This allows the heat generated by the motor 4, located in the second chamber 7, to be transferred to the outside of the housing through the heat dissipation holes, achieving rapid heat dissipation for the motor 4. Furthermore, the motor driver 3 and the motor 4 are respectively installed in the first chamber 6 and the second chamber 7, ensuring that they are placed in independent chambers. The partition wall between the first chamber 6 and the second chamber 7 effectively reduces the heat transferred from the motor 4 to the motor driver 3, providing insulation and preventing the motor driver 3 from shutting down due to high temperature. In summary, this utility model's cleaning brush device has a simple overall structure, saves space, has low manufacturing cost, provides rapid heat dissipation, extends the service life of the motor 4, and can operate continuously and stably even in high-intensity and high-temperature working environments.

[0029] In this embodiment, the impeller 8 is a hollow frustum-shaped cone with a high center and low edges. The impeller 8 has an inner cavity 11, and multiple guide holes 12 connected to the inner cavity 11 are arranged on the impeller 8 along the circumferential direction, so that the impeller 8 can better cut the air to form airflow when rotating, thereby realizing rapid heat dissipation of the motor 4.

[0030] In this embodiment, the heat dissipation holes include multiple first heat dissipation holes 9 extending longitudinally on the upper periphery of the protective cover 2 and multiple second heat dissipation holes 10 extending laterally on the lower periphery of the protective cover 2. Both the first heat dissipation holes 9 and the second heat dissipation holes 10 are connected to the second chamber 7. The first heat dissipation holes 9 facilitate the evaporation of hot air in the second chamber 7 to the outside, while the second heat dissipation holes 10 facilitate the gathering of cold air from the outside into the second chamber 7. This facilitates the formation of an airflow circulation with air entering from the bottom and exiting from the top, thereby achieving rapid heat exchange and further enhancing the heat dissipation effect.

[0031] In this embodiment, a metal heat sink 13 is provided on the side of the protective cover 2 corresponding to the first chamber 6 away from the second chamber 7. The outer side of the metal heat sink 13 is in contact with the outside air. The motor driver 3 is mounted on the metal heat sink 13 to achieve rapid heat dissipation. A flexible silicone heat-conducting sheet is provided between the motor driver 3 and the metal heat sink 13, which can effectively increase the volume of the heat-conducting medium between the two rigid bodies, the driver and the metal heat sink 13. This is beneficial for the motor driver 3 to quickly transfer heat to the metal heat sink 13, and then to the air outside the housing.

[0032] In this embodiment, the device also includes a grip rod 14 and a T-shaped connecting frame 15. The grip rod 14 is a retractable and adjustable grip rod 14. There are two cleaning brush mechanisms. The two cleaning brush mechanisms are connected to the grip rod 14 through the connecting frame 15. The two cleaning brush mechanisms are located on the left and right sides of one end of the grip rod 14, respectively. The two cleaning brush mechanisms work at the same time, thereby improving cleaning efficiency.

[0033] Traditional cleaning brush devices are controlled by a switch, typically with a switch at the battery terminal to control the motor, water pump, and other components. This requires the user to frequently move between the device and the battery, making operation cumbersome and significantly reducing work efficiency. Therefore, in this embodiment, a control module 16 is installed on the handle 14 to supply power and control the motor 4 and water pump. A wiring hole is provided on the protective cover 2, through which a wire 17 is installed. The control module 16 is electrically connected to the motor driver 3 and the motor 4 via the wire 17. A water inlet pipe 18, connected to the cleaning brush 5, is provided on the mounting base 1 for connecting an external water pump to provide water. The water inlet pipe 18 is separately located on the mounting base 1 outside the motor 4 cover, thus achieving water and electricity separation and effectively preventing water leakage from affecting the motor 4 and driver. Additionally, a wireless remote control is included, wirelessly connected to the control module for wireless operation. By using a control module plus a wireless remote control solution, the wireless remote control is designed to be portable or carried with the device. When starting up for the first time, the battery connection switch is turned on, and the device can be easily started and stopped using the wireless remote control. There is no need to go back and forth between the battery and the device, which greatly improves work efficiency and reduces the workload of users.

[0034] Because the serrated part of traditional coupling blocks is not self-adjusting, disassembly and adjustment are required for use in environments with changing angles, which is too cumbersome and reduces work efficiency. Therefore, this embodiment also includes an angle adjuster. The gripping rod 14 and the connecting frame 15, and the housing of the cleaning brush mechanism and the connecting frame 15 are rotatably connected through the angle adjuster to achieve angle adjustment. Specifically, the angle adjuster includes two coaxially arranged coupling blocks 19 and two rotating blocks 20. One coupling block 19 and one rotating block 20 are detachably fixedly assembled, and the other coupling block 19 and the other rotating block 20 are detachably fixedly assembled. The two rotating blocks 20 are rotatably arranged between the two coupling blocks 19 to achieve angle adjustment. Specifically, the angle adjuster also includes a threaded handle 21 and a nut 22. The coupling block 19 and the rotating block 20 are each provided with a central shaft hole. The opposite sides of the coupling block 19 and the rotating block 20 are respectively provided with serrated portions 23 along the circumferential direction. The coupling block 19 and the rotating block 20 are detachably fixed by meshing with the serrated portions 23. The opposite sides of the two rotating blocks 20 are respectively provided with sector-shaped grooves 24 and sector-shaped blocks 25. The sector-shaped blocks 25 of the rotating block 20 and the sector-shaped grooves 24 of the other rotating block 20 are correspondingly and movably engaged to achieve angle adjustment. The threaded handle 21 passes through the central shaft hole and is locked in place with the nut 22. When angle adjustment is required, the threaded handle 21 and the nut 22 are loosened, allowing the two rotating blocks 20 to rotate relative to each other to achieve angle adjustment. After adjustment, the threaded handle 21 and the nut 22 are tightened again.

[0035] In this embodiment, the rotating block 20 has two sector blocks 25 and two sector slots 24. The sector blocks 25 and sector slots 24 are arranged alternately along the circumference, and the two sector blocks 25 and two sector slots 24 are respectively arranged opposite each other, thereby ensuring the stability of the rotation angle adjustment and enabling the angle adjuster to adaptively adjust from 0° to 60° during cleaning. This allows it to change with the angle of the solar panel, ensuring that the brush head of the cleaning brush 5 is always in close contact with the solar panel, facilitating use at various angles and improving work efficiency. In addition, since the rotating block 20 is a detachable structure, a fixed angle working state can also be achieved by disassembling the rotating block 20.

[0036] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A cleaning brush device, characterized in that: The device includes a cleaning brush mechanism, comprising a housing, a motor driver, a motor, and a cleaning brush. The housing includes a fixed base and a protective cover that are assembled together. The protective cover contains a first chamber and a second chamber that are separated from each other. The motor driver and the motor are respectively installed in the first chamber and the second chamber, and are electrically connected. One end of the motor's output shaft extends outside the housing and connects to the cleaning brush. An impeller is installed at the other end of the motor's output shaft located in the second chamber. The protective cover has heat dissipation holes, and the second chamber communicates with the outside through the heat dissipation holes.

2. The cleaning brush device according to claim 1, characterized in that: The impeller has an internal cavity, and multiple guide holes communicating with the internal cavity are arranged on the impeller along the circumferential direction.

3. The cleaning brush device according to claim 1, characterized in that: A metal heat sink is provided on the side of the protective cover opposite the first chamber to the second chamber. The motor driver is mounted on the metal heat sink, and a flexible silicone heat-conducting sheet is provided between the motor driver and the metal heat sink.

4. The cleaning brush device according to claim 1, characterized in that: The heat dissipation holes include a first heat dissipation hole extending longitudinally on the upper periphery of the protective cover and a second heat dissipation hole extending laterally on the lower periphery of the protective cover. Both the first heat dissipation hole and the second heat dissipation hole are connected to the second chamber.

5. The cleaning brush device according to claim 1, characterized in that: It also includes a grip rod and a connecting frame. The grip rod is telescopic and adjustable, and the cleaning brush mechanism is connected to the grip rod through the connecting frame.

6. The cleaning brush device according to claim 5, characterized in that: The handle is equipped with a control module for power supply and control of the motor and water pump. The protective cover has a wiring hole with wiring installed inside. The control module is electrically connected to the motor driver and motor through the wiring. The mounting base has a water inlet pipe that connects to the cleaning brush and is used to connect an external water pump.

7. The cleaning brush device according to claim 5, characterized in that: It also includes an angle adjuster, which allows for rotational connection between the grip rod and the connecting frame, and between the housing of the cleaning brush mechanism and the connecting frame, to achieve angle adjustment.

8. The cleaning brush device according to claim 7, characterized in that: The angle adjuster includes two coaxially arranged coupling blocks and two rotating blocks. One coupling block and one rotating block are detachably and fixedly assembled, and the other coupling block and the other rotating block are detachably and fixedly assembled. The two rotating blocks are rotatably arranged between the two coupling blocks to achieve angle adjustment.

9. The cleaning brush device according to claim 8, characterized in that: The angle adjuster also includes a threaded handle and a nut. The coupling block and the rotating block are respectively provided with a central shaft hole. The opposite sides of the coupling block and the rotating block are respectively provided with serrated parts along the circumferential direction. The coupling block and the rotating block are detachably fixedly assembled by meshing the serrated parts. The opposite sides of the two rotating blocks are respectively provided with a sector groove and a sector block. The sector block of the rotating block and the sector groove of the other rotating block are correspondingly and movably engaged to realize the angle adjustment. The threaded handle passes through the central shaft hole and locks in place with the nut.

10. The cleaning brush device according to claim 9, characterized in that: There are two sector blocks and two sector slots on the rotating block. The sector blocks and sector slots are arranged alternately along the circumference, and the two sector blocks and two sector slots are respectively set opposite to each other.

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