Photovoltaic module cleaning device, method and power generation system for household photovoltaic power generation system

Abstract

The application belongs to the technical field of photovoltaic power generation, and provides a photovoltaic module cleaning device, method and power generation system for a household photovoltaic power generation system, which comprises a base, a frame arranged on the base through a supporting mechanism, a driving mechanism and a cleaning mechanism arranged on the frame; the driving mechanism comprises a screw rod, and the cleaning mechanism comprises a first cleaning assembly and a second cleaning assembly; the first cleaning assembly and the second cleaning assembly respectively comprise a first clamping piece and a second clamping piece capable of detachably connecting the first cleaning assembly and the second cleaning assembly to the screw rod; through cooperation of the first clamping piece and the second clamping piece, the purpose of quick disassembly of the first cleaning assembly and the second cleaning assembly on the screw rod is achieved, the first cleaning assembly and the second cleaning assembly can be cleaned in a quick disassembly mode, and application of a water tank and the like is avoided.

Description

Technical Field

[0001] This invention belongs to the field of photovoltaic power generation technology, and particularly relates to a photovoltaic module cleaning device, method and power generation system for a household photovoltaic power generation system. Background Technology

[0002] In a traditional household photovoltaic (PV) power generation system PV module cleaning device, one type of device includes a base plate and a mounting frame located on top of the base plate. There are two mounting frames, with a mounting plate fixedly connected to the left side of the top of the two mounting frames. The PV module body is fixedly connected between the top right side of the mounting plate and the left side of the top of the mounting frame. A water tank is fixedly connected to the top of the base plate and to the right side of the mounting frame. By rotating a motor, a transmission wheel drives a threaded rod to rotate, causing a threaded sleeve to drive a brush roller to move up and down to wipe and clean the PV module. Each wiping cycle passes through the water tank.

[0003] However, current household photovoltaic (PV) power generation system PV module cleaning devices cannot quickly disassemble and assemble connecting frames and screws, making it difficult to quickly remove the cleaning plate from inside the PV module. When not in use for a long time, external dust will fall onto the cleaning plate, affecting subsequent use. Furthermore, the method of cleaning the brushes by setting a water tank has the problem that if the water in the tank evaporates, dust will stick to the brushes, making it difficult to clean the plate when the water tank is dry. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a photovoltaic module cleaning device, method, and power generation system for a residential photovoltaic power generation system. The first and second cleaning components each include a first snap-fit ​​member and a second snap-fit ​​member capable of detachably connecting the first and second cleaning components to a screw. Through the cooperation of the first and second snap-fit ​​members, the first and second cleaning components can be quickly assembled and disassembled on the screw. This allows for cleaning of the first and second cleaning components through rapid disassembly, avoiding the need for water tanks or similar equipment.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a photovoltaic module cleaning device for a residential photovoltaic power generation system, employing the following technical solution:

[0006] A photovoltaic module cleaning device for a household photovoltaic power generation system includes a base, a frame mounted on the base via a support mechanism, and a drive mechanism and a cleaning mechanism mounted on the frame.

[0007] The driving mechanism includes a screw, and the cleaning mechanism includes a first cleaning component and a second cleaning component; the first cleaning component and the second cleaning component respectively include a first snap-fit ​​member and a second snap-fit ​​member that can detachably connect the first cleaning component and the second cleaning component to the screw.

[0008] Furthermore, the first snap-fit ​​connector is detachably provided with a first cleaning part; the second snap-fit ​​connector is detachably provided with a second cleaning part.

[0009] Furthermore, one end of the first cleaning part is provided with a first connecting end, and the other end is provided with a first mating part that can be connected to the first snap-fit ​​component; one end of the second cleaning part is provided with a second connecting end that can be connected to the first connecting end, and the other end is provided with a second mating part that can be connected to the second snap-fit ​​component.

[0010] Furthermore, the first card connector is provided with a card block, and the second card connector is provided with a card slot that can engage with the card block.

[0011] Furthermore, the support mechanism includes a first support member and a second support member disposed at different positions on the base; the frame is inclinedly disposed on the base via the first support member and the second support member.

[0012] Furthermore, the frame includes a first connector and two second connectors that are vertically connected to both ends of the first connector; the screw is mounted on the first connector via a drive mechanism.

[0013] Furthermore, a photovoltaic power generation mechanism is provided on the frame via a plug-in mechanism; the photovoltaic power generation mechanism includes a first connecting plate, a second connecting plate, and a photovoltaic rod disposed between the first connecting plate and the second connecting plate; the first connecting plate and the second connecting plate are respectively rotatably connected to the screw.

[0014] Furthermore, the second connecting plate is provided with a plug-in portion; the plug-in mechanism includes a housing disposed on the frame, a plug rod that is movably disposed in the housing by a spring and is capable of being plugged into the plug-in portion.

[0015] To achieve the above objectives, in a second aspect, the present invention also provides a method for cleaning photovoltaic modules in a residential photovoltaic power generation system, employing the following technical solution:

[0016] A method for cleaning photovoltaic modules in a residential photovoltaic power generation system, using a photovoltaic module cleaning device for a residential photovoltaic power generation system as described in the first aspect, includes: a drive mechanism driving a cleaning mechanism to clean the photovoltaic modules; when the cleaning mechanism needs to be cleaned, a first cleaning component and a second cleaning component are removed from the screw of the drive mechanism for cleaning via a first snap-fit ​​and a second snap-fit.

[0017] To achieve the above objectives, in a third aspect, the present invention also provides a residential photovoltaic power generation system, which adopts the following technical solution:

[0018] A residential photovoltaic power generation system uses a photovoltaic module cleaning device as described in the first aspect.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] In this invention, the driving mechanism includes a screw, and the cleaning mechanism includes a first cleaning component and a second cleaning component. The first and second cleaning components each include a first snap-fit ​​member and a second snap-fit ​​member capable of detachably connecting the first and second cleaning components to the screw. Through the cooperation of the first and second snap-fit ​​members, the purpose of quickly assembling and disassembling the first and second cleaning components on the screw is achieved. The first and second cleaning components can be cleaned through quick disassembly, avoiding the need for water tanks or similar applications. Attached Figure Description

[0021] The accompanying drawings, which form part of this embodiment, are used to provide a further understanding of this embodiment. The illustrative embodiments and their descriptions are used to explain this embodiment and do not constitute an improper limitation of this embodiment.

[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0023] Figure 2 This is a disassembly diagram of the photovoltaic power generation mechanism according to Embodiment 1 of the present invention;

[0024] Figure 3 This is a schematic diagram of the cleaning mechanism in Embodiment 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the insertion mechanism in Embodiment 1 of the present invention;

[0026] The components include: 1. Base; 2. Support mechanism; 201. First support member; 2011. First support rod; 2012. Second support rod; 202. Second support member; 3. Frame; 301. First connector; 302. Second connector; 303. Third connector; 4. Drive mechanism; 401. Drive member; 402. Screw; 5. Cleaning mechanism; 501. First cleaning component; 5011. First connecting end; 5012. First cleaning part; 5013. First docking part; 5014. First bolt; 5015. First clip. 5016, latching block; 502, second cleaning component; 5021, second connecting end; 5022, second cleaning part; 5023, second mating part; 5024, second bolt; 5025, second latching component; 5026, latching slot; 6, insertion mechanism; 601, housing; 602, spring; 603, insertion rod; 604, pull block; 7, photovoltaic power generation mechanism; 701, first connecting plate; 702, photovoltaic rod; 703, second connecting plate; 704, insertion part; 705, first connecting hole; 706, second connecting hole. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] A photovoltaic (PV) power generation system is a system that directly converts solar energy into electrical energy using solar cells. Its main components are solar cells, batteries, controllers, and inverters. It is characterized by high reliability, long service life, no environmental pollution, and the ability to generate electricity independently or connect to the grid. It is favored by companies and organizations worldwide and has broad development prospects. PV modules (commonly known as solar panels) are composed of solar cells or solar cells of different specifications cut by laser cutting machines or wire cutting machines.

[0030] Example 1:

[0031] To address the issues in traditional residential photovoltaic (PV) module cleaning devices that prevent the quick assembly and disassembly of connecting frames and screws, and the difficulty in quickly removing cleaning panels from within the PV modules, such as... Figure 1 As shown, this embodiment provides a photovoltaic module cleaning device for a residential photovoltaic power generation system, including a base 1, a support mechanism 2, a frame 3, a drive mechanism 4, a cleaning mechanism 5, and a plug-in mechanism 6, etc.; in some embodiments, it also includes a photovoltaic power generation mechanism 7, etc.

[0032] like Figure 1 and Figure 2 As shown, the base 1 is rectangular, circular or other irregular in shape; the base 1 can be an independently set independent structure that supports the entire device and / or the corresponding household photovoltaic power generation system; the base 1 can also be set in a pre-selected area directly on the ground or other platforms.

[0033] like Figure 2 As shown, the support mechanism 2 includes a first support member 201 and a second support member 202; the first support member 201 and the second support member 202 are disposed at different positions on the base 1, and their function is to set the frame 3 on the base 1; the heights of the first support member 201 and the second support member 202 can be different, so that the frame 3 can be tilted on the base 1, thereby tilting the photovoltaic power generation mechanism 7 set on the frame 3, which helps to absorb sunlight.

[0034] The first support member 201 can be configured as a telescopic structure such as a telescopic rod, used to adjust the tilt angle of the frame 3; the first support member 201 can also be configured as a non-telescopic structure, such as a support rod, support frame, support base, or other support member. In one embodiment, the first support member 201 includes a first support rod 2011 vertically disposed on the base 1, and a second support rod 2012 vertically disposed on the first support rod 2011, the second support rod 2012 being connected to the frame 3; the arrangement of the second support rod 2012 creates a certain space between the first support rod 2011 and the frame 3, providing operating space for construction.

[0035] Reinforcing ribs or other structures may also be provided between the first support rod 2011 and the second support rod 2012 to improve stability.

[0036] The second support member 202 can be configured as a support rod, support frame, support base, or other support member. Optionally, there are two of both the first support member 201 and the second support member 202, which are respectively connected to four different positions of the frame 3 to ensure the stability of the support for the frame 3.

[0037] like Figure 2As shown, the frame 3 includes a first connector 301 and a second connector 302 connected to the first connector 301. Optionally, the first connector 301 and the second connector 302 are connecting plates, connecting columns, or other connecting structures; a second connector 302 is vertically disposed at each end of the first connector 301. Optionally, the first support member 201 is connected to the first connector 301, and the second support member 202 is connected to the second connector 302. In some embodiments, a third connector 303 may be disposed between the two second connectors 302 to improve connection stability.

[0038] like Figure 2 As shown, the driving mechanism 4 includes a driving member 401 and a screw 402 connected to the driving member 401; the driving member 401 may be disposed on the first connecting member 301.

[0039] Optionally, the driving component 401 is a motor, and the output rod of the driving component 401 is connected to the screw 402. A screw sleeve may be fitted onto the screw 402, and the screw sleeve is detachably connected to the cleaning mechanism 5.

[0040] like Figure 3 As shown, the cleaning mechanism 5 includes a detachably connected first cleaning component 501 and a second cleaning component 502. Optionally, the first cleaning component 501 includes a first connecting end 5011, a first cleaning part 5012, a first mating part 5013, a first bolt 5014, a first snap-fit ​​member 5015, and a locking block 5016, etc.; the second cleaning component 502 includes a second connecting end 5021, a second cleaning part 5022, a second mating part 5023, a second bolt 5024, a second snap-fit ​​member 5025, and a locking groove 5026, etc.

[0041] The first connecting end 5011 and the second connecting end 5021 may be provided with connecting holes. When the first cleaning component 501 and the second cleaning component 502 are disassembled and installed, the connection and separation of the first connecting end 5011 and the second connecting end 5021 can be achieved by the cooperation of bolts and connecting holes.

[0042] The first cleaning part 5012 and the second cleaning part 5022 are respectively provided with a plurality of semi-circular grooves. When the first cleaning component 501 and the second cleaning component 502 are installed together, the semi-circular grooves on the first cleaning part 5012 and the second cleaning part 5022 correspond to form a plurality of circular holes, such as... Figure 1 and Figure 2As shown, a circular hole is fitted onto the photovoltaic rod 702 in the photovoltaic power generation mechanism 7, and a cleaning brush, cleaning block, cleaning cloth or other cleaning parts can be provided in the inner groove; after the first cleaning part 5012 and the second cleaning part 5022 are installed, they perform cleaning work on the photovoltaic rod 702 under the drive of the drive mechanism 4.

[0043] The first connecting end 5011 can be disposed at one end of the first mating portion 5013, and the second connecting end 5021 can be disposed at one end of the second cleaning portion 5022. The first cleaning portion 5012 has a first mating portion 5013 at its end away from the first connecting end 5011, and the second cleaning portion 5022 has a second mating portion 5023 at its end away from the second connecting end 5021. Optionally, the first snap-fit ​​member 5015 has a first mating portion 5013 detachably disposed on each side via a first mating portion 5013; the second snap-fit ​​member 5025 has a second mating portion 5023 detachably disposed on each side via a second mating portion 5023.

[0044] The first docking portion 5013 and the first snap-fit ​​member 5015 are each provided with through holes, and are detachably connected by the first bolt 5014, which facilitates separate cleaning of the first cleaning portion 5012. Two through holes can be provided on the first docking portion 5013 and the first snap-fit ​​member 5015 to improve connection stability. Similarly, the second docking portion 5023 and the second snap-fit ​​member 5025 are each provided with through holes, and are detachably connected by the second bolt 5024, which facilitates separate cleaning of the second cleaning portion 5022. Two through holes can be provided on the second docking portion 5023 and the second snap-fit ​​member 5025 to improve connection stability.

[0045] The first latching member 5015 is provided with a latching block 5016, and the second latching member 5025 is provided with a latching slot 5026 that can latch with the latching block 5016. Optionally, there are two of each of the first latching member 5015 and the latching slot 5026 to ensure stability after latching; the latching block 5016 can be configured as an elastic latching plate, an elastic latching block, or other latching member; the latching slot 5026 is adapted to the latching block 5016.

[0046] Both the first snap-fit ​​member 5015 and the second snap-fit ​​member 5025 have a connecting part on their interface that can contact the screw 402. Optionally, the first snap-fit ​​member 5015 and the second snap-fit ​​member 5025 have an arc-shaped structure on their interface that can connect with the threaded sleeve on the screw 402. When the first snap-fit ​​member 5015 and the second snap-fit ​​member 5025 are snapped together, the arc-shaped structure holds the threaded sleeve to achieve connection. Alternatively, the first snap-fit ​​member 5015 and the second snap-fit ​​member 5025 have a threaded arc-shaped structure on their interface. When the first snap-fit ​​member 5015 and the second snap-fit ​​member 5025 are snapped together, the threaded arc-shaped structure engages with the thread on the screw 402 to achieve transmission.

[0047] like Figure 1 , Figure 2 and 4 As shown, the insertion mechanism 6 includes a housing 601, a spring 602, a plug rod 603, and a pull block 604. Optionally, there are two insertion mechanisms 6. The housing 601 is fixed to the second connecting member 302, and the second connecting member 302 has a through hole that allows the plug rod 603 to pass through. Correspondingly, the photovoltaic power generation mechanism 7 has an insertion part 704, such as a plug hole, that corresponds to the plug rod 603. One end of the spring is connected to the plug rod 603, and the other end is connected to the inner wall of the housing 601. The plug rod 603 is provided with a pull block 604, which is located outside the housing 601. By pulling the pull block 604, the insertion rod 603 can be pulled into the housing 601. At this time, the spring 602 stores energy. After the photovoltaic power generation mechanism is installed on the frame 3, the pull block 604 is released, and under the action of the spring force 602, the insertion rod 603 is inserted into the plug-in part 704 to achieve the plug-in purpose. When disassembling the photovoltaic power generation mechanism 7, the insertion rod 603 and the plug-in part 704 can also be separated by pulling the pull block 604.

[0048] like Figure 2As shown, in this embodiment, a photovoltaic power generation mechanism 7 can also be provided on the frame 3. The photovoltaic power generation mechanism 7 may include a first connecting plate 701, a photovoltaic rod 702, a second connecting plate 703, a plug-in part 704, a first connecting hole 705, and a second connecting hole 706. Multiple photovoltaic rods 702 may be provided, with both ends of the photovoltaic rod 702 connected to the first connecting plate 701 and the second connecting plate 703 respectively. The first connecting plate 701 and the second connecting plate 703 are respectively provided with a first connecting hole 705 and a second connecting hole 706. The first connecting hole 705 and the second connecting hole 706 are used for rotatable connection with the screw 402. Optionally, a bearing or other structure may be provided in the first connecting hole 705 and the second connecting hole 706, with the outer ring of the bearing connected to the first connecting hole 705 and the second connecting hole 706, and the inner ring connected to the screw 402; or the first connecting hole 705 and the second connecting hole 706 may be rotatably connected to the screw 402 through other connecting parts.

[0049] To facilitate the disassembly and reassembly of the photovoltaic power generation mechanism 7 on the frame 3, no bearings are installed in the first connecting hole 705 and the second connecting hole 706. The inner diameters of the first connecting hole 705 and the second connecting hole 706 are larger than the outer diameter of the screw 402, and they do not contact the screw 402. During installation and operation, the photovoltaic power generation mechanism 7 is first placed inside the frame 3 until the insertion part 704 and the insertion rod 603 are on the same central axis. During this process, the pull block 604 needs to be pulled. The pull block 604 will drive the corresponding insertion rod 603 to retract, and the spring 602 will be compressed. Then, the photovoltaic power generation mechanism 7 can be quickly installed by inserting the insertion rod 603 into the corresponding insertion part 704. Then, the screw 402 is inserted into the pre-reserved through hole on the first connector 301, as well as into the first connecting hole 705 and the second connecting hole 706, and the drive member 401 is installed on the first connector 301. Then, the first snap-fit ​​connector 5015 and the second snap-fit ​​connector 5025 are installed and snapped together, and the first cleaning part 5012 and the second cleaning part 5022 are respectively installed onto the first snap-fit ​​connector 5015 and the second snap-fit ​​connector 5025, and the first cleaning part 5012 and the second cleaning part 5022 are reinforced by connecting the first connecting end 5011 and the second connecting end 5021. Finally, the drive unit 401 is activated to drive the screw 402 to rotate, and the rotating cleaning mechanism 5 of the screw 402 moves along the axial direction of the screw 402 to quickly clean the photovoltaic rod 702; the reciprocating movement of the cleaning mechanism 5 can be achieved by changing the rotation direction of the screw 402 driven by the drive unit 401.

[0050] Example 2:

[0051] This embodiment provides a method for cleaning photovoltaic modules of a residential photovoltaic power generation system. It uses a photovoltaic module cleaning device for a residential photovoltaic power generation system as described in Embodiment 1, including: a drive mechanism 4 drives a cleaning mechanism 5 to clean the photovoltaic power generation mechanism 7; when the cleaning mechanism 5 needs to be cleaned, the first cleaning component 501 and the second cleaning component 502 are removed from the screw of the drive mechanism through the first snap-fit ​​component 5015 and the second snap-fit ​​component 5025 for cleaning.

[0052] Example 3:

[0053] This embodiment provides a residential photovoltaic (PV) power generation system that uses the PV module cleaning device for residential PV power generation systems as described in Embodiment 1. The residential PV power generation system may include a base 1, a support mechanism 2, a frame 3, a drive mechanism 4, a cleaning mechanism 5, a connection mechanism 6, and a PV power generation mechanism 7, etc.; the specific connection method and position settings are as described in Embodiment 1 and will not be detailed here.

[0054] The above description is merely a preferred embodiment of this practice and is not intended to limit the scope of this practice. Various modifications and variations can be made to this practice by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this practice should be included within the protection scope of this practice.

Claims

1. A photovoltaic module cleaning device for a household photovoltaic power generation system, characterized in that, It includes a base, a frame mounted on the base via a support mechanism, and a drive mechanism and a cleaning mechanism mounted on the frame; The driving mechanism includes a screw, and the cleaning mechanism includes a first cleaning component and a second cleaning component; the first cleaning component and the second cleaning component respectively include a first snap-fit ​​and a second snap-fit ​​that can detachably connect the first cleaning component and the second cleaning component to the screw. The first snap-fit ​​connector is detachably provided with a first cleaning part; the second snap-fit ​​connector is detachably provided with a second cleaning part; The first cleaning part has a first connecting end at one end and a first mating part at the other end that can be connected to the first snap-fit ​​component; the second cleaning part has a second connecting end at one end that can be connected to the first connecting end and a second mating part at the other end that can be connected to the second snap-fit ​​component.

2. The household photovoltaic power generation system photovoltaic module cleaning device as described in claim 1, characterized in that, The first card connector is provided with a card block, and the second card connector is provided with a card slot that can engage with the card block.

3. The household photovoltaic power generation system photovoltaic module cleaning device as described in claim 1, characterized in that, The support mechanism includes a first support member and a second support member disposed at different positions on the base; the frame is inclinedly disposed on the base via the first support member and the second support member.

4. The household photovoltaic power generation system photovoltaic module cleaning device as described in claim 1, characterized in that, The frame includes a first connector and two second connectors that are vertically connected to both ends of the first connector; the screw is mounted on the first connector via a drive mechanism.

5. The household photovoltaic power generation system photovoltaic module cleaning device as described in claim 1, characterized in that, A photovoltaic power generation mechanism is provided on the frame via a plug-in mechanism; the photovoltaic power generation mechanism includes a first connecting plate, a second connecting plate, and a photovoltaic rod disposed between the first connecting plate and the second connecting plate; the first connecting plate and the second connecting plate are respectively rotatably connected to the screw.

6. The household photovoltaic power generation system photovoltaic module cleaning device as described in claim 5, characterized in that, The second connecting plate is provided with a plug-in part; the plug-in mechanism includes a housing provided on the frame, a plug rod that is movably disposed in the housing by a spring and can be plugged into the plug-in part.

7. A method for cleaning photovoltaic modules in a residential photovoltaic power generation system, characterized in that, A photovoltaic module cleaning device for a residential photovoltaic power generation system as described in any one of claims 1-6 is used, comprising: a drive mechanism driving a cleaning mechanism to clean the photovoltaic module; when the cleaning mechanism needs to be cleaned, a first cleaning component and a second cleaning component are removed from the screw of the drive mechanism for cleaning via a first snap-fit ​​and a second snap-fit.

8. A residential photovoltaic power generation system, characterized in that, The photovoltaic module cleaning device for a residential photovoltaic power generation system as described in any one of claims 1-6 was used.

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