CN110233598A - A kind of umbrella-type photovoltaic termination - Google Patents
A kind of umbrella-type photovoltaic termination Download PDFInfo
- Publication number
- CN110233598A CN110233598A CN201910544620.4A CN201910544620A CN110233598A CN 110233598 A CN110233598 A CN 110233598A CN 201910544620 A CN201910544620 A CN 201910544620A CN 110233598 A CN110233598 A CN 110233598A
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- China
- Prior art keywords
- box body
- spring
- lid
- annulus
- boss
- 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.)
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- 238000000465 moulding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 8
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Photovoltaic Devices (AREA)
Abstract
The present invention discloses a kind of umbrella-type photovoltaic termination, opens length of relatively elaborate and time for solving the problems, such as that terminal box in the prior art is existed using the connection type of screw and snapping；Including bottom plate, boss and box body, the inside of the bottom plate is equipped with boss, bottom end of the top of boss integrally formed with support column, it is fixedly connected at the top of support column and the bottom face center of box body, the first spring and annulus are socketed on support column, the top of the first spring is in contact with annulus bottom face；The present invention drives the first lid and the second lid to rotate around the central point of the first mounting hole and the second mounting hole by the both ends of annulus by drive rod；Achieve the purpose that quickly to open box body, facilitates wiring；The both ends of diode are slidably connected by convex conducting block and bar shaped lug plate, and installation and removal are more convenient, are conducive to replace diode；Box body can facilitate box body wiring with 360 degree rotation.
Description
Technical field
The present invention relates to photovoltaic terminal box technical fields more particularly to a kind of umbrella-type photovoltaic wiring to fill
It sets.
Background technique
The solar cell array and solar charging electric control that solar photovoltaic terminal box is constituted between solar cell module
Attachment device between device, main function are connection and protection solar photovoltaic assembly, the electricity that solar battery is generated
Power is connect with outside line, conducts electric current caused by photovoltaic module.
It is to disclose " to be provided on shell for by upper cover buckle in " wiring of CN102222872A photovoltaic " in patent
Firmly, the thermal deformation diagonal brace in being used for a long time is avoided "；The connection type clasped using shell and upper cover, existing deficiency mode be,
Shell and upper cover opening are relatively elaborate, need firmly to break shell and upper cover into two with one's hands；It is not easy to repair more inside docking wire box
Thread-changing core and diode.
Summary of the invention
The purpose of the present invention is to provide a kind of umbrella-type photovoltaic terminations；For solving in the prior art connect
Wire box there is a problem of opening length of relatively elaborate and time using the connection type of screw and snapping；The both ends of annulus of the present invention are logical
Crossing drive rod drives the first lid and the second lid to rotate around the central point of the first mounting hole and the second mounting hole；Reach and quickly beats
The purpose for opening box body, facilitates wiring.
The purpose of the present invention can be achieved through the following technical solutions: a kind of umbrella-type photovoltaic termination, including
Bottom plate, boss and box body, the inside of the bottom plate are equipped with boss, bottom end of the top of boss integrally formed with support column, branch
It is fixedly connected at the top of dagger and the bottom face center of box body, the first spring and annulus, the first spring is socketed on support column
Top be in contact with annulus bottom face；
The side of the box body is symmetrically opened up there are two the first mounting hole, and the other side of box body symmetrically offers the second installation
Hole, the two sides of the first lid are integrally formed with the first pillar；Two the first pillars are separately mounted in two the first mounting holes；
The equal two-body in the two sides of second lid forms the second pillar；Two the second pillars are separately mounted in two the second mounting holes；The
The side wall of one lid and the second lid passes through seccotine and is pasted with adhesive tape；The front side wall of box body is opened up there are two wiring hole；
The two sides of first lid and the second lid are mounted on the first U-shaped frame, and the two sides of the first U-shaped frame are opened
Equipped with third mounting hole；Integrally formed with the second U-shaped frame, the two sides of the second U-shaped frame offer the 4th peace for the two sides of annulus
Fill hole；Drive rod is installed between first U-shaped frame and the second U-shaped frame；
The inside of the box body is opened up there are four card slot；The inside of card slot is equipped with bar shaped lug plate, and bar shaped lug plate is logical
It crosses transverse slat to be fixed in card slot, the both ends of transverse slat are fixedly connected by screw with the interior bottom wall of box body；Bar shaped lug plate it is upper
End surface symmetric is opened up there are two convex sliding slot；The inside of convex sliding slot is equipped with convex conducting block corresponding with convex sliding slot；It is convex
The top of type conducting block is welded with one end of pin, and the other end of pin is connect with diode；It opens at the both ends of bar shaped lug plate
Equipped with screw thread connecting groove, the internal whorl of screw thread connecting groove is connected with the bottom end of binding post；The upper surface of the bar shaped lug plate
It opens up fluted；The inside of groove is plugged with limited post；There are two the first spring carrier arms for the bottom end integrated molding of limited post；Groove
Bottom wall be fixedly connected there are two second spring link up with, the first spring carrier arm and second spring hook between by second spring company
It connects；The interior bottom wall of box body offers rectangular straight slot；
Jack is offered on the annulus, the inside of jack is plugged with one end of fixed column；Third is socketed in fixed column
Spring；Third spring is located in jack；The other end of fixed column is located at outside annulus through annulus and the other end end of fixed column
Place is threadably mounted in the second thread groove that pull ring outer wall opens up；
The top of the drive rod is symmetrically installed there are two third pillar；Two third pillars are separately mounted to two thirds
In mounting hole；The bottom end of drive rod is symmetrically installed there are two the 4th pillar；Two the 4th pillars are separately mounted to two the 4th peaces
It fills in hole；
The bottom plate is made of the first rectangular slab and the second rectangular slab, and the first rectangular slab and the second rectangular slab are solid by screw
Fixed connection；Convex card slot corresponding with boss is offered in first rectangular slab；Offer fixation hole on support column, fixed column and solid
Determine hole to be used cooperatively.
Beneficial effects of the present invention:
(1) it can quickly open box body and facilitate wiring: make its slide downward on the support columns by holding annulus, press simultaneously
Contract the first spring；The both ends of annulus drive the first lid and the second lid around the first mounting hole and the second mounting hole by drive rod
Central point rotation, so that the first lid and the second lid be made to rotate round about, achieve the purpose that quickly to open box body, just
Just wiring；
(2) diode installing and dismounting and replacement are simple and convenient: the both ends of diode pass through convex conducting block and bar shaped wiring
Piece is slidably connected, and installation and removal are more convenient, is conducive to replace diode；By the fixed pin of limited post, to prevent
Convex conducting block slides in convex sliding slot；When dismantling diode, the lower section that limited post makes its height be located at pin is directly pressed
The disassembly to diode can be realized；
(3) box body can facilitate box body wiring with 360 degree rotation: support column is convex by opening up inside the first rectangular slab
It is passed through in type card slot, is connected to boss in convex card slot；Then the second rectangular slab is mounted on the first rectangular slab bottom and led to
Screw is crossed to fix；Facilitate boss that can rotate in convex card slot, thus make support column and box body can be with 360 degree rotation, side
Bedpan body wiring.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is a kind of umbrella-type photovoltaic termination overall structure diagram of the present invention；
Fig. 2 is a kind of umbrella-type photovoltaic termination overall structure main view of the present invention；
Fig. 3 is a kind of bar shaped lug plate overall structure diagram of umbrella-type photovoltaic termination of the present invention；
Fig. 4 is a kind of limited post scheme of installation of umbrella-type photovoltaic termination of the present invention；
Fig. 5 is a kind of umbrella-type photovoltaic termination circular ring structure top view of the present invention；
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-5, the present invention is a kind of umbrella-type photovoltaic termination, including bottom plate 1,2 and of boss
Box body 5, the inside of bottom plate 1 are equipped with boss 2, bottom end of the top of boss 2 integrally formed with support column 22, the top of support column 22
It holds and is fixedly connected at the bottom face center of box body 5, the first spring 21 and annulus 3, the first spring 21 are socketed on support column 22
Top be in contact with 3 bottom face of annulus；
The side of box body 5 is symmetrically opened up there are two the first mounting hole 54, and the other side of box body 5 symmetrically offers the second installation
Hole 55, the two sides of the first lid 51 are integrally formed with the first pillar；Two the first pillars are separately mounted to two first installations
In hole 54；The equal two-body in two sides of second lid 52 forms the second pillar；Two the second pillars are separately mounted to two second peaces
It fills in hole 55；The side wall of first lid 51 and the second lid 32 passes through seccotine and is pasted with adhesive tape 53；It can be with by adhesive tape 53
Make between the first lid 51 and the second lid 52 leakproofness of junction and the first lid 51 and the second lid 52 and box body 5 it
Between leakproofness；The front side wall of first box body 5 is opened up there are two wiring hole 58；
The two sides of first lid 51 and the second lid 52 are mounted on the first U-shaped frame 56, and the two sides of the first U-shaped frame 56 are opened
Equipped with third mounting hole 57；Integrally formed with the second U-shaped frame 31, the two sides of the second U-shaped frame 31 are offered for the two sides of annulus 3
4th mounting hole 32；Drive rod 4 is installed between first U-shaped frame 56 and the second U-shaped frame 31；
The inside of box body 5 is opened up there are four card slot 6；The inside of card slot 6 is equipped with bar shaped lug plate 62, bar shaped lug plate 62
It is fixed in card slot 6 by transverse slat 61, the both ends of transverse slat 61 are fixedly connected by screw with the interior bottom wall of box body 5；Bar shaped connects
The upper surface of line piece 62 is symmetrically opened up there are two convex sliding slot 63；The inside of convex sliding slot 63 is equipped with corresponding with convex sliding slot 63
Convex conducting block 66；The top of convex conducting block 66 is welded with one end of pin 65, the other end and diode 64 of pin 65
Connection；The both ends of bar shaped lug plate 62 offer screw thread connecting groove 621, and the internal whorl of screw thread connecting groove 621, which is connected with, to be connect
The bottom end of terminal 622；The upper surface of bar shaped lug plate 62 opens up fluted 67；The inside of groove 67 is plugged with limited post 68；Limit
There are two the first spring carrier arms 681 for the bottom end integrated molding of position column 68；The bottom wall of groove 67 is fixedly connected there are two second spring
Hook 671 is connected between first spring carrier arm 681 and second spring hook 671 by second spring 69；The inner bottom of box body 5
Wall offers rectangular straight slot 59；
Jack 34 is offered on annulus 3, the inside of jack 34 is plugged with one end of fixed column 35；It is socketed in fixed column 35
Third spring 36；Third spring 36 is located in jack 34；The other end of fixed column 35 is located at outside annulus 3 and fixed through annulus 3
The other end end point of column 35 is threadably mounted in the second thread groove 38 that 37 outer wall of pull ring opens up；
The top of drive rod 4 is symmetrically installed there are two third pillar；Two third pillars are separately mounted to two third peaces
It fills in hole 57；The bottom end of drive rod 4 is symmetrically installed there are two the 4th pillar；Two the 4th pillars are separately mounted to two the 4th peaces
It fills in hole 32；
Bottom plate 1 is made of the first rectangular slab 11 and the second rectangular slab 12, and the first rectangular slab 11 and the second rectangular slab 12 pass through
Screw is fixedly connected；Convex card slot 13 corresponding with boss 2 is offered in first rectangular slab 11；Fixation is offered on support column 22
Hole 23, fixed column 35 are used cooperatively with fixation hole 23；
The installation method of umbrella-type photovoltaic termination:
It is passed through firstly, support column 22 is passed through in the convex card slot 13 opened up inside the first rectangular slab 11, is clamped boss 2
In convex card slot 13；Then the second rectangular slab 12 is mounted on 11 bottom of the first rectangular slab and be screwed；
Secondly, fixed column 35 is then passed through jack 34 by 36 sets of third spring in fixed column 35, by 37 outside of pull ring
The second thread groove 38 that wall opens up is mounted in fixed column 35；The first spring 21 is socketed on support column 22 again, then installation
The annulus 3 of fixed column 35 is socketed on support column 22；
Again, bar shaped lug plate 62 is placed in card slot 6；Then pass through transverse slat 61 for bar shaped lug plate 62 in card slot 6
It is interior, then the both ends of transverse slat 61 are fixed on to the interior bottom wall of box body 5 by screw；The pin 65 at 64 both ends of diode is distinguished
It is welded on two convex conducting blocks 66；Then two convex conducting blocks 66 are distinguished into sliding plug in two bar shaped lug plates 62
On convex sliding slot 63 in and contact it with the one side wall of convex sliding slot 63, the bottom end of second spring 69 is then fixed on the
On two spring carrier arms 671；The first spring carrier arm 681 of 68 bottom end of limited post is fixed in second spring 69 again；Pass through limit
Column 68 fixes pin 65, to prevent convex conducting block 66 from sliding in convex sliding slot 63；Then photovoltaic cable is passed through with line
Wiring hole 58 is fixed on binding post 622, and the bottom end of binding post 622 is rotated in screw thread connecting groove 621；
Finally, the first pillar of 51 two sides of the first lid is mounted in the first mounting hole 54, then by 52 liang of the second lid
Second pillar of side is mounted in the second mounting hole 55；The bottom face of box body 5 and the top of support column 22 are consolidated by seccotine
Bonding；Two third pillars on 4 top of connecting rod are separately mounted in two third mounting holes 57 again；Finally by drive rod 4
Two the 4th pillars of bottom end are separately mounted in two the 4th mounting holes 32；
The working principle of the invention: make its slide downward on support column 22 by holding annulus 3, while compressing the first bullet
Spring 21 simultaneously moves to fixed column 35 in 23 by the elastic force of third spring 36, thus clamping rings 3；The two of fixation hole annulus 3
End drives the first lid 51 and the second lid 52 to turn around the central point of the first mounting hole 54 and the second mounting hole 55 by drive rod 4
It is dynamic, so that the first lid 51 and the second lid 52 be made to rotate round about, achievees the purpose that quickly to open box body 5, conveniently connect
Line；When closing, pull ring 37 is directly pulled down；Elastic force by the first spring 21 makes annulus 3 be restored to home position, to make first
Lid 51 and the second lid 52 are closed；The both ends of diode 64 are slidably connected by convex conducting block 66 with bar shaped lug plate 62,
Mount and dismount it is more convenient, be conducive to diode 64 replace；By the fixed pin 65 of limited post 68, to prevent convex from leading
Electric block 66 slides in convex sliding slot 63；When dismantling diode 64, directly pressing limited post 68 makes its height be located at pin 65
The disassembly to diode 64 can be realized in lower section；Support column 22 is passed through in the convex card slot 13 opened up inside the first rectangular slab 11
It passes through, is connected to boss 2 in convex card slot 13；Then the second rectangular slab 12 is mounted on 11 bottom of the first rectangular slab and passed through
Screw is fixed；Facilitate boss 2 that can rotate in convex card slot 13, to make support column 22 and box body 5 that can revolve with 360 degree
Turn, facilitates 5 wiring of box body.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (5)
1. a kind of umbrella-type photovoltaic termination, including bottom plate (1), boss (2) and box body (5)；It is characterized in that, described
The inside of bottom plate (1) is equipped with boss (2), bottom end of the top of boss (2) integrally formed with support column (22), support column (22)
Top and the bottom face center of box body (5) at be fixedly connected, the first spring (21) and annulus are socketed on support column (22)
(3), the top of the first spring (21) is in contact with annulus (3) bottom face；
The side of the box body (5) is symmetrically opened up there are two the first mounting hole (54), and the other side of box body (5) symmetrically offers the
Two mounting holes (55), the two sides of the first lid (51) are integrally formed with the first pillar；Two the first pillars are separately mounted to two
In a first mounting hole (54)；The equal two-body in two sides of second lid (52) forms the second pillar；Two the second pillars are pacified respectively
In two the second mounting holes (55)；The side wall of first lid (51) and the second lid (32) passes through seccotine and is pasted with glue
Item (53)；The front side wall of box body (5) is opened up there are two wiring hole (58)；
The two sides of first lid (51) and the second lid (52) are mounted on the first U-shaped frame (56), the first U-shaped frame
(56) two sides offer third mounting hole (57)；The two sides of annulus (3) are integrally formed with the second U-shaped frame (31), the 2nd U
The two sides of type frame (31) offer the 4th mounting hole (32)；Biography is installed between first U-shaped frame (56) and the second U-shaped frame (31)
Lever (4).
2. a kind of umbrella-type photovoltaic termination according to claim 1, which is characterized in that the box body (5)
Inside is opened up there are four card slot (6)；The inside of card slot (6) is equipped with bar shaped lug plate (62), and bar shaped lug plate (62) passes through cross
Plate (61) is fixed in card slot (6), and the both ends of transverse slat (61) are fixedly connected by screw with the interior bottom wall of box body (5)；Bar shaped
The upper surface of lug plate (62) is symmetrically opened up there are two convex sliding slot (63)；The inside of convex sliding slot (63) is equipped with sliding with convex
The corresponding convex conducting block (66) of slot (63)；The top of convex conducting block (66) is welded with one end of pin (65), pin (65)
The other end connect with diode (64)；The both ends of bar shaped lug plate (62) offer screw thread connecting groove (621), screw thread wiring
The internal whorl of slot (621) is connected with the bottom end of binding post (622)；The upper surface of the bar shaped lug plate (62) opens up fluted
(67)；The inside of groove (67) is plugged with limited post (68)；There are two the first springs to hang for the bottom end integrated molding of limited post (68)
Hook (681)；The bottom wall of groove (67) be fixedly connected there are two second spring hook (671), the first spring carrier arm (681) and second
It is connected between spring carrier arm (671) by second spring (69)；The interior bottom wall of box body (5) offers rectangular straight slot (59).
3. a kind of umbrella-type photovoltaic termination according to claim 1, which is characterized in that on the annulus (3)
It offers jack (34), the inside of jack (34) is plugged with one end of fixed column (35)；Fixed column is socketed with third bullet on (35)
Spring (36)；Third spring (36) is located in jack (34)；The other end of fixed column (35) is located at annulus (3) outside through annulus (3)
And the other end end point of fixed column (35) is threadably mounted in the second thread groove (38) that pull ring (37) outer wall opens up.
4. a kind of umbrella-type photovoltaic termination according to claim 1, which is characterized in that the drive rod (4)
Top be symmetrically installed there are two third pillar；Two third pillars are separately mounted in two third mounting holes (57)；Transmission
The bottom end of bar (4) is symmetrically installed there are two the 4th pillar；Two the 4th pillars are separately mounted in two the 4th mounting holes (32).
5. a kind of umbrella-type photovoltaic termination according to claim 1, which is characterized in that the bottom plate (1) by
First rectangular slab (11) and the second rectangular slab (12) are constituted, and the first rectangular slab (11) and the second rectangular slab (12) are screwed
Connection；Convex card slot (13) corresponding with boss (2) is offered in first rectangular slab (11), support column offers fixation on (22)
Hole (23), fixed column (35) are used cooperatively with fixation hole (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910544620.4A CN110233598A (en) | 2019-06-21 | 2019-06-21 | A kind of umbrella-type photovoltaic termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910544620.4A CN110233598A (en) | 2019-06-21 | 2019-06-21 | A kind of umbrella-type photovoltaic termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110233598A true CN110233598A (en) | 2019-09-13 |
Family
ID=67857031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910544620.4A Pending CN110233598A (en) | 2019-06-21 | 2019-06-21 | A kind of umbrella-type photovoltaic termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110233598A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6462265B1 (en) * | 1995-08-15 | 2002-10-08 | Canon Kabushiki Kaisha | Terminal lead-out structure and solar-cell apparatus provided with such structure |
| CN2667758Y (en) * | 2003-11-11 | 2004-12-29 | 于家明 | High voltage cable branch box |
| CN107575843A (en) * | 2017-09-15 | 2018-01-12 | 安徽旺旺禽业科技有限公司 | A kind of LED support |
| CN207054626U (en) * | 2017-08-22 | 2018-03-02 | 张旭敏 | A kind of folding catching net with locking function |
| CN208656713U (en) * | 2018-07-18 | 2019-03-26 | 济宁中科先进技术研究院有限公司 | A kind of photovoltaic junction box |
-
2019
- 2019-06-21 CN CN201910544620.4A patent/CN110233598A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6462265B1 (en) * | 1995-08-15 | 2002-10-08 | Canon Kabushiki Kaisha | Terminal lead-out structure and solar-cell apparatus provided with such structure |
| CN2667758Y (en) * | 2003-11-11 | 2004-12-29 | 于家明 | High voltage cable branch box |
| CN207054626U (en) * | 2017-08-22 | 2018-03-02 | 张旭敏 | A kind of folding catching net with locking function |
| CN107575843A (en) * | 2017-09-15 | 2018-01-12 | 安徽旺旺禽业科技有限公司 | A kind of LED support |
| CN208656713U (en) * | 2018-07-18 | 2019-03-26 | 济宁中科先进技术研究院有限公司 | A kind of photovoltaic junction box |
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