CN216262135U - Intelligent cleaning device for solar photovoltaic panel - Google Patents

Intelligent cleaning device for solar photovoltaic panel Download PDF

Info

Publication number
CN216262135U
CN216262135U CN202121556693.4U CN202121556693U CN216262135U CN 216262135 U CN216262135 U CN 216262135U CN 202121556693 U CN202121556693 U CN 202121556693U CN 216262135 U CN216262135 U CN 216262135U
Authority
CN
China
Prior art keywords
plate
contraband
shaped clamping
photovoltaic panel
cleaning device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202121556693.4U
Other languages
Chinese (zh)
Inventor
邓飞
梁兴
邓经彩
王舒蕾
邹新民
陈大辉
甘祖航
温鑫婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanchang Institute of Technology
Original Assignee
Nanchang Institute of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanchang Institute of Technology filed Critical Nanchang Institute of Technology
Priority to CN202121556693.4U priority Critical patent/CN216262135U/en
Application granted granted Critical
Publication of CN216262135U publication Critical patent/CN216262135U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

Landscapes

  • Photovoltaic Devices (AREA)
  • Cleaning In General (AREA)

Abstract

The utility model belongs to the technical field of solar photovoltaic panels, and particularly relates to an intelligent cleaning device for a solar photovoltaic panel, which comprises two Contraband-shaped clamping rails, two top plates at the rear ends of the two Contraband-shaped clamping rails, two mounting plates for the top plates, two bottom plates at the front ends of the two Contraband-shaped clamping rails, two supporting blocks for the Contraband-shaped clamping rails, a lead screw arranged on each supporting block, a driven gear arranged on each lead screw, a low-speed motor and a controller arranged at the lower end of each mounting plate, a driving gear fixedly connected with a rotating shaft of the low-speed motor, a chain connected between the driving gear and the two driven gears in a transmission manner, a moving plate arranged between the two lead screws, a rectangular groove penetrating up and down and arranged on each moving plate, and a cleaning mechanism arranged in the rectangular groove, wherein the cleaning device can automatically clean the photovoltaic panel by means of electric power, and the cleaning mode is time-saving and labor-saving, is favorable for market popularization and application.

Description

Intelligent cleaning device for solar photovoltaic panel
Technical Field
The utility model belongs to the technical field of solar photovoltaic panels, and particularly relates to an intelligent cleaning device for a solar photovoltaic panel.
Background
Solar panels, also known as photovoltaic panels, are devices that directly or indirectly convert solar radiation energy into electrical energy through photoelectric or photochemical effects by absorbing sunlight, and the current photovoltaic power generation technology is developed more mature and is not limited by ground source environments. However, along with the accumulation of service time, can accumulate dust or animal waste on the photovoltaic board, the photoelectric conversion rate of meeting greatly reduced photovoltaic board, consequently need regularly clean the maintenance to the photovoltaic board, now when cleaning the photovoltaic board, mainly rely on the staff to clean on the photovoltaic board surface manually, this kind of cleaning mode is comparatively hard and comparatively time-consuming, to above-mentioned problem, we have proposed a solar photovoltaic board intelligence cleaning device.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is: aims to provide an intelligent cleaning device for a solar photovoltaic panel, which is used for solving the problems existing in the background technology.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows:
an intelligent cleaning device for a solar photovoltaic panel comprises two Contraband-shaped clamping rails which are bilaterally symmetrical, wherein the rear ends of the two Contraband-shaped clamping rails are fixedly connected with a top plate together, the lower end of the top plate is fixedly connected with a mounting plate, the front ends of the two Contraband-shaped clamping rails are detachably and fixedly connected with a bottom plate, supporting blocks are arranged on the front and rear sides of the upper ends of the two Contraband-shaped clamping rails, first proximity switches are arranged on the rear sides of the two supporting blocks on the front side, second proximity switches are arranged on the front sides of the two supporting blocks on the rear side, a lead screw is rotatably connected between the two supporting blocks on the upper end of the same Contraband-shaped clamping rail, and the rear ends of the two lead screws penetrate through the rear side and are fixedly connected with driven gears;
the lower end of the mounting plate is provided with a low-speed motor and a controller, the controller is electrically connected with the low-speed motor, the two first proximity switches and the two second proximity switches are electrically connected with the controller, a rotating shaft of the low-speed motor is fixedly connected with a driving gear, a chain is in transmission connection between the driving gear and the two driven gears, a moving plate is arranged between the two lead screws, the left side and the right side of the moving plate are respectively in threaded connection with the two lead screws, the moving plate is provided with a rectangular groove which penetrates through the moving plate up and down, and a cleaning mechanism is assembled inside the rectangular groove;
clean mechanism include with rectangular channel assorted rectangular plate, the rectangular plate lower extreme is equipped with about two telescopic links that distribute, two the clean board of the common fixedly connected with of telescopic link lower extreme, two the telescopic link outside all overlaps and is equipped with first spring, clean board lower extreme is equipped with cleaning cloth, the assembly groove has all been seted up at both ends about the rectangular plate, the assembly groove has been assembled from inside to outside in proper order second spring and set bar, the set bar is close to second spring one end and is equipped with the driving lever that runs through the rectangular plate upper end, the rectangular plate upper end seted up with driving lever assorted motion groove, both ends all are equipped with about the rectangular groove with set bar assorted lockhole.
Before use, the whole cleaning device is assembled on a photovoltaic panel, a controller is connected with a power supply when the cleaning device is used, after the controller is communicated with the power supply, the low-speed motor can be controlled to work for one cycle at intervals, when the cleaning device works, the controller firstly controls the low-speed motor to drive a rotating shaft to rotate in the forward direction, the rotating shaft can drive a driving gear to rotate in the forward direction when rotating in the forward direction, the driving gear can drive two driven gears to rotate in the forward direction through a chain, the two driven gears can drive two lead screws to rotate in the forward direction when rotating in the forward direction, the left side and the right side of the moving plate are respectively in threaded connection with the two lead screws, so when the two lead screws rotate in the forward direction, the moving plate can move forward along the axial direction of the lead screws, when the moving plate moves forward, a cleaning cloth at the lower end of the cleaning mechanism can be driven to clean the upper surface of the photovoltaic panel once, when the moving plate to be in contact with two first proximity switches, the controller controls the low-speed motor to drive the rotating shaft to rotate reversely, the rotating shaft can drive the driving gear to rotate reversely when rotating reversely, the driving gear can drive the two driven gears to rotate reversely through the chains when rotating reversely, the two driven gears can drive the two lead screws to rotate reversely when rotating reversely, because the left side and the right side of the moving plate are respectively in threaded connection with the two lead screws, the moving plate can move backwards along the axial direction of the lead screws when rotating reversely, the moving plate can drive the cleaning cloth at the lower end of the cleaning mechanism to clean the upper surface of the photovoltaic panel once again when moving backwards, and when the moving plate moves backwards to be in contact with the two second proximity switches, the controller controls the low-speed motor to be powered off and stop working, so that a working cycle is completed, the manual cleaning of workers on the surface of the photovoltaic panel can be replaced, and time and labor are saved compared with the traditional cleaning mode, is favorable for market popularization and application.
Two the front end outside of "Contraband" shape card rail all is equipped with the installation ear, the bottom plate rear end left and right sides all is equipped with the threaded rod that runs through the installation ear, two the equal threaded connection of threaded rod has fastening nut.
And the upper ends of the two driving levers are provided with circular rings.
And chamfering the tail end of the lock bolt.
The cleaning cloth is bonded at the lower end of the cleaning plate.
The utility model provides an intelligent cleaning device for a solar photovoltaic panel, which can automatically clean the photovoltaic panel by means of electric power, is time-saving and labor-saving in a cleaning mode, and is beneficial to market popularization and use.
Drawings
The utility model is further illustrated by the non-limiting examples given in the figures.
Fig. 1 is a first schematic structural diagram of an embodiment of an intelligent cleaning device for a solar photovoltaic panel according to the present invention;
FIG. 2 is a schematic view of the connection of the present invention to a photovoltaic panel;
FIG. 3 is a schematic structural diagram II of an embodiment of an intelligent cleaning device for a solar photovoltaic panel according to the utility model;
FIG. 4 is an enlarged view of the structure at A in FIG. 3;
FIG. 5 is a third schematic structural view of an embodiment of an intelligent cleaning device for a solar photovoltaic panel according to the present invention;
FIG. 6 is a partial schematic view of the present invention;
FIG. 7 is an enlarged view of the structure at B in FIG. 6;
FIG. 8 is a schematic view of the cleaning mechanism of the present invention;
FIG. 9 is a schematic view of a cleaning mechanism according to the present invention in partial cross-section;
fig. 10 is a schematic structural view of the sports board of the present invention.
The main element symbols are as follows:
the device comprises an 'Contraband' shaped clamping rail 1, a top plate 2, a mounting plate 21, a bottom plate 22, a supporting block 23, a first proximity switch 231, a second proximity switch 232, a screw rod 24, a driven gear 25, a low-speed motor 3, a controller 301, a driving gear 31, a chain 32, a moving plate 33, a rectangular groove 34, a rectangular plate 4, a telescopic rod 41, a cleaning plate 42, a first spring 421, a cleaning cloth 43, an assembling groove 44, a second spring 45, a lock plunger 46, a shift lever 47, a moving groove 48, a lock hole 49, a mounting lug 5, a threaded rod 51, a fastening nut 52, a circular ring 53 and a photovoltaic panel 6.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1-10, the intelligent cleaning device for the solar photovoltaic panel comprises two 'Contraband' -shaped clamping rails 1 which are bilaterally symmetrical, wherein the rear ends of the two 'Contraband' -shaped clamping rails 1 are fixedly connected with a top plate 2 together, the lower end of the top plate 2 is fixedly connected with an installation plate 21, the front ends of the two 'Contraband' -shaped clamping rails 1 are detachably and fixedly connected with a bottom plate 22, supporting blocks 23 are arranged on the front and rear sides of the upper ends of the two 'Contraband' -shaped clamping rails 1, first proximity switches 231 are arranged on the rear sides of the two supporting blocks 23 on the front side, second proximity switches 232 are arranged on the front sides of the two supporting blocks 23 on the rear side, a screw rod 24 is rotatably connected between the two supporting blocks 23 on the upper end of the same 'Contraband' -shaped clamping rail 1, and driven gears 25 are fixedly connected with the rear ends of the two screw rods 24 through the rear supporting blocks 23;
the lower end of the mounting plate 21 is provided with a low-speed motor 3 and a controller 301, the controller 301 is electrically connected with the low-speed motor 3, the two first proximity switches 231 and the two second proximity switches 232 are both electrically connected with the controller 301, a rotating shaft of the low-speed motor 3 is fixedly connected with a driving gear 31, a chain 32 is in transmission connection between the driving gear 31 and the two driven gears 25, a moving plate 33 is arranged between the two lead screws 24, the left side and the right side of the moving plate 33 are respectively in threaded connection with the two lead screws 24, the moving plate 33 is provided with a rectangular groove 34 which penetrates up and down, and a cleaning mechanism is assembled inside the rectangular groove 34;
clean mechanism include with rectangular channel 34 assorted rectangular plate 4, rectangular plate 4 lower extreme is equipped with two telescopic links 41 of controlling the distribution, the clean board 42 of the common fixedly connected with of two telescopic link 41 lower extremes, two telescopic link 41 outside all overlaps and is equipped with first spring 421, clean board 42 lower extreme is equipped with cleaning cloth 43, assembly groove 44 has all been seted up at both ends about rectangular plate 4, assembly groove 44 has been equipped with second spring 45 and set bar 46 from inside to outside in proper order, set bar 46 is close to second spring 45 one end and is equipped with the driving lever 47 that runs through rectangular plate 4 upper end, rectangular plate 4 upper end seted up with driving lever 47 assorted motion groove 48, both ends all are equipped with set bar 46 assorted lockhole 49 about rectangular channel 34.
Before use, the whole cleaning device is assembled on the photovoltaic panel 6, during specific assembly, the bottom plate 22 is detached from the two Contraband-shaped clamping rails 1, then the two Contraband-shaped clamping rails 1 are inserted from the rear end of the photovoltaic panel 6, the left end and the right end of the photovoltaic panel 6 slide into the two Contraband-shaped clamping rails 1 respectively, when the rear end of the photovoltaic panel 6 is abutted to the top plate 2, the bottom plate 22 is fixed at the front ends of the two Contraband-shaped clamping rails 1, and at the moment, the whole cleaning device is assembled on the photovoltaic panel 6;
the two first springs 421 can push the rectangular plate 4 and the cleaning plate 42 to the upper and lower sides respectively in a natural state, so that the two telescopic rods 41 are in a fully extended state; the two second springs 45 can push the two latches 46 out towards two sides in a natural state, so that the two latches 46 are respectively inserted into the two lock holes 49, the cleaning mechanism is fixed in the rectangular groove 34 at the moment, and the position of the rectangular plate 4 is fixed by the two latches 46, so that the two first springs 421 can push the cleaning plate 42 towards the upper end of the photovoltaic plate 6, and the cleaning cloth 43 at the lower end of the cleaning plate 42 is kept in contact with the upper end of the photovoltaic plate 6;
when the device is used, the controller 301 is connected with a power supply, the power supply can be commercial power or electricity generated by the photovoltaic panel 6, after the controller 301 is connected with the power supply, the first proximity switch 231, the second proximity switch 232 and the low-speed motor 3 can be powered, the controller 301 can control the low-speed motor 3 to work for one cycle at intervals, when the device works specifically, the controller 301 firstly controls the low-speed motor 3 to drive the rotating shaft to rotate in the forward direction, the rotating shaft drives the driving gear 31 to rotate in the forward direction when rotating in the forward direction, the driving gear 31 can drive the two driven gears 25 to rotate in the forward direction through the chain 32, the two driven gears 25 can drive the two screw rods 24 to rotate in the forward direction when rotating in the forward direction, the left side and the right side of the moving plate 33 are respectively in threaded connection with the two screw rods 24, so that when the two screw rods 24 rotate in the forward direction, the moving plate 33 can move forward along the axial direction of the screw rods 24, when the moving plate 33 moves forward, the cleaning cloth 43 at the lower end of the cleaning mechanism can be driven to clean the upper surface of the photovoltaic panel 6 once, when the moving plate 33 moves forward to be in contact with the two first proximity switches 231, the controller 301 controls the low-speed motor 3 to drive the rotating shaft to rotate reversely, when the rotating shaft rotates reversely, the driving gear 31 can be driven to rotate reversely, when the driving gear 31 rotates reversely, the two driven gears 25 can be driven to rotate reversely through the chains 32, when the two driven gears 25 rotate reversely, the two screw rods 24 can be driven to rotate reversely, because the left side and the right side of the moving plate 33 are respectively in threaded connection with the two screw rods 24, when the two screw rods 24 rotate reversely, the moving plate 33 can move backwards along the axial direction of the screw rods 24, when the moving plate 33 moves backwards, the cleaning cloth 43 at the lower end of the cleaning mechanism can be driven to clean the upper surface of the photovoltaic panel 6 once again, waiting to move board 33 backward and moving to when contacting with two second proximity switch 232, controller 301 will control low-speed motor 3 outage stop work, just so accomplish a duty cycle, just so can replace the staff manual to clean on photovoltaic board 1 surface, compare traditional clean mode labour saving and time saving, do benefit to the marketing and use.
When the cleaning cloth 43 at the lower end of the cleaning mechanism needs to be cleaned, a user can push the two shift levers 47 towards the middle at the same time, so that the two shift levers 47 drive the two lock bolts 46 to compress the two second springs 45 and move towards the two assembling grooves 44, when the two lock bolts 46 respectively exit the two lock holes 49, the cleaning mechanism is disconnected from the rectangular groove 34, the cleaning mechanism can be taken out of the rectangular groove 34 at the moment, the cleaning cloth 43 is convenient to clean, the process of putting back the cleaning cloth 43 after cleaning is finished is the same as the disassembling process, and therefore the process is not repeated.
The outer sides of the front ends of the two Contraband-shaped clamping rails 1 are respectively provided with an installation lug 5, the left side and the right side of the rear end of the bottom plate 22 are respectively provided with a threaded rod 51 penetrating through the installation lugs 5, the two threaded rods 51 are respectively in threaded connection with fastening nuts 52, when the two threaded rods 51 at the rear end of the bottom plate 22 respectively penetrate through the two installation lugs 5, the two fastening nuts 52 are respectively screwed on the two threaded rods 51, at the moment, the bottom plate 22 can be fixedly connected at the front ends of the two Contraband-shaped clamping rails 1, after the two fastening nuts 52 are screwed off, the bottom plate 22 can be directly detached from the two Contraband-shaped clamping rails 1, and the bottom plate 22 is convenient for realizing the detachable fixed connection between the two Contraband-shaped clamping rails 1.
The upper ends of the two shift levers 47 are provided with circular rings 53, and the arrangement of the circular rings 53 is convenient for a user to take the cleaning mechanism out of the rectangular groove 34.
The end of the latch 46 is chamfered to facilitate insertion of the latch 46 into the lock hole 49.
The cleaning cloth 43 is adhered to the lower end of the cleaning plate 42, thus facilitating the replacement of the cleaning plate 42.
The utility model provides an intelligent cleaning device for a solar photovoltaic panel, which can automatically clean the photovoltaic panel by means of electric power, is time-saving and labor-saving in a cleaning mode, and is beneficial to market popularization and use.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (5)

1. The utility model provides a solar photovoltaic board intelligence cleaning device which characterized in that: the device comprises two 'Contraband' -shaped clamping rails which are bilaterally symmetrical, the rear ends of the two 'Contraband' -shaped clamping rails are fixedly connected with a top plate together, the lower end of the top plate is fixedly connected with an installation plate, the front ends of the two 'Contraband' -shaped clamping rails are detachably and fixedly connected with a bottom plate, supporting blocks are arranged on the front and rear sides of the upper ends of the two 'Contraband' -shaped clamping rails, first proximity switches are arranged on the rear sides of the two supporting blocks on the front side, second proximity switches are arranged on the front sides of the two supporting blocks on the rear side, a screw rod is rotatably connected between the two supporting blocks on the upper end of the same 'Contraband' -shaped clamping rail, and the rear ends of the two screw rods penetrate through the supporting blocks on the rear side and are fixedly connected with driven gears;
the lower end of the mounting plate is provided with a low-speed motor and a controller, the controller is electrically connected with the low-speed motor, the two first proximity switches and the two second proximity switches are electrically connected with the controller, a rotating shaft of the low-speed motor is fixedly connected with a driving gear, a chain is in transmission connection between the driving gear and the two driven gears, a moving plate is arranged between the two lead screws, the left side and the right side of the moving plate are respectively in threaded connection with the two lead screws, the moving plate is provided with a rectangular groove which penetrates through the moving plate up and down, and a cleaning mechanism is assembled inside the rectangular groove;
clean mechanism include with rectangular channel assorted rectangular plate, the rectangular plate lower extreme is equipped with about two telescopic links that distribute, two the clean board of the common fixedly connected with of telescopic link lower extreme, two the telescopic link outside all overlaps and is equipped with first spring, clean board lower extreme is equipped with cleaning cloth, the assembly groove has all been seted up at both ends about the rectangular plate, the assembly groove has been assembled from inside to outside in proper order second spring and set bar, the set bar is close to second spring one end and is equipped with the driving lever that runs through the rectangular plate upper end, the rectangular plate upper end seted up with driving lever assorted motion groove, both ends all are equipped with about the rectangular groove with set bar assorted lockhole.
2. The intelligent cleaning device for the solar photovoltaic panel as claimed in claim 1, wherein: two the front end outside of "Contraband" shape card rail all is equipped with the installation ear, the bottom plate rear end left and right sides all is equipped with the threaded rod that runs through the installation ear, two the equal threaded connection of threaded rod has fastening nut.
3. The intelligent cleaning device for the solar photovoltaic panel as claimed in claim 1, wherein: and the upper ends of the two driving levers are provided with circular rings.
4. The intelligent cleaning device for the solar photovoltaic panel as claimed in claim 1, wherein: and chamfering the tail end of the lock bolt.
5. The intelligent cleaning device for the solar photovoltaic panel as claimed in claim 1, wherein: the cleaning cloth is bonded at the lower end of the cleaning plate.
CN202121556693.4U 2021-07-09 2021-07-09 Intelligent cleaning device for solar photovoltaic panel Expired - Fee Related CN216262135U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121556693.4U CN216262135U (en) 2021-07-09 2021-07-09 Intelligent cleaning device for solar photovoltaic panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121556693.4U CN216262135U (en) 2021-07-09 2021-07-09 Intelligent cleaning device for solar photovoltaic panel

Publications (1)

Publication Number Publication Date
CN216262135U true CN216262135U (en) 2022-04-12

Family

ID=81057789

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121556693.4U Expired - Fee Related CN216262135U (en) 2021-07-09 2021-07-09 Intelligent cleaning device for solar photovoltaic panel

Country Status (1)

Country Link
CN (1) CN216262135U (en)

Similar Documents

Publication Publication Date Title
CN104826825A (en) Surface cleaning device for solar cell module
CN112751530A (en) Photovoltaic plate constant-heat snow removing device for solar photovoltaic power generation
CN216262135U (en) Intelligent cleaning device for solar photovoltaic panel
CN210609004U (en) Solar panel fixing device for photovoltaic production
CN219247785U (en) Solar photovoltaic power station
CN212005493U (en) Solar LED lamp with self-cleaning function
CN216056917U (en) Solar photovoltaic board cleaning device
CN214480454U (en) New forms of energy street lamp photovoltaic board cleaner
CN213542317U (en) Self-cleaning street lamp
CN213213408U (en) High-efficient solar power generation device
CN210965993U (en) Photovoltaic module self-cleaning device
CN215528946U (en) Full-automatic solar panel cleans equipment
CN216668000U (en) Energy-efficient solar heating device
CN216868370U (en) Solar street lamp convenient to clearance
CN210887133U (en) Power station is with blocking dirty device
CN204710755U (en) Solar module surface cleaning apparatus
CN210629423U (en) Polycrystal solar energy component that can automatically cleaning
CN220291969U (en) Self-cleaning solar photovoltaic panel
CN219678400U (en) Emergency power generation device based on solar energy and energy storage
CN213900814U (en) LED lamp capable of automatically sweeping surface dust
CN219124168U (en) Photovoltaic module cleaning robot
CN221255818U (en) Photovoltaic power generation curtain wall structure
CN220492948U (en) Defrosting and snow removing device for photovoltaic module
CN210192519U (en) Photovoltaic module recovery processing material feeding unit
CN220368687U (en) Snow device is prevented to solar photovoltaic board

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20220412

CF01 Termination of patent right due to non-payment of annual fee