CN112103692A - Improved photovoltaic system connector with excellent electrical performance - Google Patents
Improved photovoltaic system connector with excellent electrical performance Download PDFInfo
- Publication number
- CN112103692A CN112103692A CN202011065751.3A CN202011065751A CN112103692A CN 112103692 A CN112103692 A CN 112103692A CN 202011065751 A CN202011065751 A CN 202011065751A CN 112103692 A CN112103692 A CN 112103692A
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- CN
- China
- Prior art keywords
- insulating
- connector
- photovoltaic system
- plug
- plug bush
- 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.)
- Pending
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- 241000446313 Lamella Species 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 19
- 229910052802 copper Inorganic materials 0.000 abstract description 19
- 239000010949 copper Substances 0.000 abstract description 19
- 239000011810 insulating material Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- UIPVMGDJUWUZEI-UHFFFAOYSA-N copper;selanylideneindium Chemical compound [Cu].[In]=[Se] UIPVMGDJUWUZEI-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
- H01R13/424—Securing in base or case composed of a plurality of insulating parts having at least one resilient insulating part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- 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
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention provides an improved photovoltaic system connector with excellent electrical performance, which comprises a male plug and a female plug, wherein the male plug and the female plug comprise a shell, a nut, a cable lock catch and a gasket, and an insulating plug bush arranged in the shell; the one end of insulating plug bush is the toper structure including two at least card lamellas, and the opening terminal surface of toper structure is non-enclosed construction, is equipped with protruding structure on the copper terminal of connector, and after the copper terminal inserted insulating plug bush, the terminal surface butt of protruding structure and card lamella. According to the improved photovoltaic system connector, the copper terminal of the connector is fixed and prevented from being pulled out by the insulating plug bush which is made of insulating materials and has a clamping flap structure at one end and a certain length, so that the structural strength of the connector can be ensured, the creepage distance of the connector can be obviously increased, the electrical performance of the connector is improved, the connector meets the use requirement of a photovoltaic system with a higher standard, the service life of the connector is prolonged, and the serious photovoltaic system safety accident is avoided.
Description
Technical Field
The invention relates to the technical field of electric connectors, in particular to an improved photovoltaic system connector with excellent electrical performance.
Background
With global climate change and the increasing severity of environmental pollution problems caused by traditional fossil energy, the green renewable energy industry has been rapidly developing over the last decade. Solar energy is a renewable resource, and solar cell technology for generating electricity by utilizing photovoltaic effect is well-paid attention by people. The solar cell is made of materials capable of generating photovoltaic effect, such as silicon, gallium arsenide, indium selenium copper and the like, and can convert light energy into electric energy. At present, a photovoltaic module formed by combining a plurality of solar cells is widely used for building various photovoltaic power generation systems or building curtain walls to build energy-saving and environment-friendly buildings.
The photovoltaic power generation system needs to connect a plurality of photovoltaic modules to form a photovoltaic module array through cables so as to output large voltage outwards, an electric connector is an indispensable device for connecting the photovoltaic modules, conductive copper terminals are arranged in a male plug and a female plug of the connector, and the copper terminals in the electric connector are mainly designed according to the requirement of electrical safety at present, namely certain electrical clearance and creepage distance need to be met; in addition, it needs to be guaranteed that after the cable is connected with the copper terminal, the copper terminal cannot be loosened and displaced in the connector shell or even pulled out of the connector shell due to external pulling force, otherwise the safe use of the whole photovoltaic module and the photovoltaic array is affected.
Referring to fig. 1, taking the female plug of the currently used photovoltaic system connector as an example, in order to prevent the copper terminal 11 from being pulled loose or pulled out by the cable fixedly connected with the copper terminal 11, a barb structure 112 is designed on the copper terminal 11, in addition, a metal collar 12 'is sleeved outside the copper terminal 11 during installation, an inward concave card 122' is arranged on the metal collar 12 ', after the copper terminal 11 passes through the metal collar 12', the barb structure 112 is abutted by the card 122 ', and the metal collar 12' is limited inside the male plug housing 10, so that the copper terminal 10 is not easy to be pulled out. The design can ensure the use requirement of the connector under the condition that the electrical performance requirement of the connector is not particularly high, but with the wide use of high-power photovoltaic group price and photovoltaic systems, the electrical performance requirement of the connector is higher and higher, the product standard is stricter and stricter, and the design of the metal collar cannot improve the electrical performance of the connector, particularly the creepage distance is far less than the standard requirement.
Disclosure of Invention
In view of the above-mentioned requirements for the use of photovoltaic system connectors in applications, it is an object of the present invention to provide an improved connector for photovoltaic systems, which can significantly improve the electrical performance of the connector and ensure the service life of the connector.
In order to achieve the purpose of the invention, the improved photovoltaic system connector with excellent electrical performance comprises a male plug and a female plug, wherein the male plug comprises a male plug shell, a nut in threaded connection with the male plug shell, a cable lock catch and a gasket which are arranged inside the nut, and an insulating plug bush and a male plug pin which are arranged in the male plug shell; one end of the insulating plug bush is in fit butt joint with the gasket, the other end of the insulating plug bush is of a conical structure comprising at least two clamping petals, the opening end face of the conical structure is of a non-closed structure, a convex structure is arranged on the male plug pin, and after the male plug pin is inserted into the insulating plug bush, the convex structure is in butt joint with the end face of the clamping petals; the female plug comprises a female plug shell, a nut in threaded connection with the female plug shell, a cable lock catch and a gasket which are arranged inside the nut, and an insulating plug bush and a female plug bush which are arranged in the female plug shell; the one end and the packing ring cooperation butt of insulating plug bush, the other end is the toper structure including two at least card lamella, the opening terminal surface of toper structure is non-enclosed construction, female plug bush on be equipped with protruding structure, after female plug bush inserts insulating plug bush, protruding structure and the terminal surface butt of card lamella.
Preferably, the protruding structure is a continuous protrusion along the circumferential direction or a plurality of wedge-shaped barb structures uniformly distributed along the circumferential direction.
Preferably, the length of the insulating plug bush is 2-4 cm.
Preferably, the insulating plug bush is formed by integrally molding insulating plastics.
Preferably, the number of the clamping petals at one end of the insulating plug bush is four, and the clamping petals are uniformly distributed at intervals along the circumferential direction.
Preferably, the angle between the clamping petal at one end of the insulating plug bush and the axial direction of the insulating plug bush is 10-45 degrees.
Still preferably, the angle between the clamping petal at one end of the insulating plug bush and the axial direction of the insulating plug bush is 15-30 degrees.
Preferably, the length of the conical structure at one end of the insulating plug bush accounts for 1/4-1/2 of the total length of the insulating plug bush.
Preferably, the female plug bush comprises a bush body, one end of the bush body is provided with a cable riveting end, a drum spring is arranged in the bush body at the other end of the bush body, and the bush body is further provided with a drum spring limiting structure.
Preferably, a sealing O-shaped ring is arranged between the male plug and the female plug of the connector.
According to the improved photovoltaic system connector, the copper terminal of the connector is fixed and prevented from being pulled out by the insulating plug bush which is made of insulating materials and has a clamping flap structure at one end and a certain length, so that the structural strength of the connector can be ensured, the creepage distance of the connector can be obviously increased, the electrical performance of the connector is improved, the connector meets the use requirement of a photovoltaic system with a higher standard, the service life of the connector is prolonged, and the serious photovoltaic system safety accident is avoided.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings. Wherein:
fig. 1 is a schematic diagram illustrating a male plug structure of a photovoltaic system connector in the prior art;
FIG. 2 is a schematic diagram of an exploded view of the photovoltaic system connector of the present invention;
fig. 3 is a schematic structural view of a female terminal (plug bush) of the photovoltaic system connector according to the present invention;
FIG. 4 is a schematic assembled view of a photovoltaic system connector of the present invention;
FIG. 5 is a schematic front view of the photovoltaic system connector of FIG. 4;
FIG. 6 is a side view of the photovoltaic system connector of FIG. 4;
fig. 7 is a schematic view of the cross-section A-A and a partial enlarged structure of fig. 6.
Detailed Description
The structural features and advantages of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 2, 3 and 7, the improved photovoltaic system connector with excellent electrical performance according to the present invention includes a male plug and a female plug, wherein the male plug includes a male plug housing 10, a nut 15 in threaded connection with the male plug housing 10, a cable lock 14 and a gasket 13 disposed inside the nut 15, an insulating plug 12 disposed inside the male plug housing 10, and a male plug pin 11; one end of the insulating plug bush 12 is in fit abutting joint with the gasket 13, the other end of the insulating plug bush is in a conical structure comprising at least two clamping petals 122, the opening end face of the conical structure is in a non-closed structure, a convex structure 112 is arranged on the male plug pin 11, and after the male plug pin is inserted into the insulating plug bush 12, the convex structure 112 abuts against the clamping petals 122, so that the male plug pin 11 is prevented from being pulled out of the male plug shell 10 or loosened due to external tensile force; the female plug comprises a female plug shell 20, a nut 25 in threaded connection with the female plug shell 20, a cable lock 24 and a gasket 23 arranged inside the nut 25, and an insulating plug bush 22 and a female plug bush 21 arranged in the female plug shell 20; insulating plug bush 22 one end and packing ring 23 cooperation butt, the other end is the toper structure including two at least card lamella 222, the opening terminal surface of toper structure is non-enclosed construction, female plug bush 21 on be equipped with protruding structure 212, after female plug bush inserts insulating plug bush 22, protruding structure 212 and card lamella 222 butt, avoid female plug bush 21 to extract or take place to become flexible because outside pulling force is followed female shell 20 that inserts.
The improved photovoltaic system connector provided by the invention has the advantages that the insulating plug bush with a certain length is used as a stop element for preventing the copper terminal (namely, a male plug pin and a female plug bush) of the connector from being pulled out, the end part of the insulating plug bush is of a conical structure with a plurality of clamping petal structures, the end surface of the insulating plug bush is of a non-closed structure, the copper terminal can be conveniently inserted into the convex structure on the copper terminal, the clamping petals can be conveniently reset by utilizing the elasticity of the material after the convex structure passes through, and the end surfaces of the clamping petals directly abut against the convex structure, so that the copper terminal can be effectively prevented from being pulled out; in addition, the insulating plug bush has a certain length, so that the creepage distance can be obviously increased, the electrical performance of the connector is improved, and the application requirements of a high-power photovoltaic assembly and a photovoltaic system are met.
In a preferred embodiment, the protruding structure is a continuous protrusion along the circumferential direction or a plurality of wedge-shaped barb structures (see the barb structures 212 shown in fig. 3) uniformly arranged along the circumferential direction.
In a preferred embodiment, the length of the insulating plug bush is 2-4 cm.
In a preferred embodiment, the insulating sleeves 12 and 22 are integrally formed of insulating plastic.
In another preferred embodiment, the number of the locking lobes 122, 222 at one end of the insulating sleeves 12, 22 is four, and the locking lobes are evenly spaced along the circumference.
In another preferred embodiment, the angle between the locking lobes 122, 222 at one end of the insulating sleeve 12, 22 and the axial direction of the insulating sleeve is 10-45 °, more preferably 15-30 °.
In another preferred embodiment, the length of the tapered structure at one end of the insulating sleeve accounts for 1/4-1/2 of the total length of the insulating sleeve, taking into account the strength and elasticity of the snap structure.
In another preferred embodiment, referring to fig. 2 and 7, the female plug bush 21 includes a bush body 210, one end of which is provided with a cable riveting end 211, the other end of which is provided with a drum spring 203 inside the bush body 210, the bush body 213 is further provided with a drum spring limiting structure 213, and the limiting structure 213 may be a plurality of concave card structures formed by directly stamping the bush body 213, so as to limit the insertion position of the drum spring.
In another preferred embodiment, a sealing O-ring 201 is arranged between the male plug and the female plug of the connector.
According to the improved photovoltaic system connector, the copper terminal of the connector is fixed and prevented from being pulled out by the insulating plug bush which is made of insulating materials and has a clamping flap structure at one end and a certain length, so that the structural strength of the connector can be ensured, the creepage distance of the connector can be obviously increased, the electrical performance of the connector is improved, the connector meets the use requirement of a photovoltaic system with a higher standard, the service life of the connector is prolonged, and the serious photovoltaic system safety accident is avoided.
The present invention is not limited to the embodiments described above, and those skilled in the art may make modifications or changes within the scope of the disclosure without departing from the spirit of the present invention, so that the scope of the present invention is defined by the appended claims.
Claims (10)
1. Improved photovoltaic system connector that electrical property is excellent, the connector including public inserting and female inserting, its characterized in that:
the male plug comprises a male plug shell, a screw cap in threaded connection with the male plug shell, a cable lock catch and a gasket which are arranged inside the screw cap, and an insulating plug bush and a male plug pin which are arranged inside the male plug shell; one end of the insulating plug bush is in fit butt joint with the gasket, the other end of the insulating plug bush is of a conical structure comprising at least two clamping petals, the opening end face of the conical structure is of a non-closed structure, a convex structure is arranged on the male plug pin, and after the male plug pin is inserted into the insulating plug bush, the convex structure is in butt joint with the end face of the clamping petals;
the female plug comprises a female plug shell, a nut in threaded connection with the female plug shell, a cable lock catch and a gasket which are arranged inside the nut, and an insulating plug bush and a female plug bush which are arranged in the female plug shell; the one end and the packing ring cooperation butt of insulating plug bush, the other end is the toper structure including two at least card lamella, the opening terminal surface of toper structure is non-enclosed construction, female plug bush on be equipped with protruding structure, after female plug bush inserts insulating plug bush, protruding structure and the terminal surface butt of card lamella.
2. The improved electrically superior photovoltaic system connector of claim 1, wherein said raised structure is a continuous raised circumferentially or a plurality of wedge-shaped barb structures uniformly arranged circumferentially.
3. The improved electrically superior photovoltaic system connector of claim 1, wherein said insulating insert has a length of 2-4 cm.
4. The improved electrically superior photovoltaic system connector of claim 1, wherein said insulating insert is integrally formed of an insulating plastic.
5. The improved photovoltaic system connector of claim 1, wherein said insulating sleeve has four locking lobes at one end thereof, and wherein said four locking lobes are circumferentially spaced apart and evenly spaced apart.
6. The improved electrically superior photovoltaic system connector of claim 1, wherein said insulating sleeve has an end with a locking lobe at an angle of 10-45 ° to the axial direction of the insulating sleeve.
7. The improved electrically superior photovoltaic system connector of claim 6, wherein said insulating sleeve has an end with a snap lobe at an angle of 15-30 ° to the axial direction of the insulating sleeve.
8. The improved electrically superior photovoltaic system connector of claim 1, wherein the tapered configuration at one end of the insulating sleeve has a length that is 1/4-1/2 of the total length of the insulating sleeve.
9. The improved photovoltaic system connector with excellent electrical performance as claimed in claim 1, wherein the female plug sleeve comprises a sleeve body, one end of the female plug sleeve is provided with a cable riveting end, a drum spring is arranged in the sleeve body at the other end, and a drum spring limiting structure is further arranged on the sleeve body.
10. The improved electrically superior photovoltaic system connector of claim 1, wherein a sealing O-ring is disposed between the male and female portions of the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065751.3A CN112103692A (en) | 2020-10-01 | 2020-10-01 | Improved photovoltaic system connector with excellent electrical performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011065751.3A CN112103692A (en) | 2020-10-01 | 2020-10-01 | Improved photovoltaic system connector with excellent electrical performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112103692A true CN112103692A (en) | 2020-12-18 |
Family
ID=73784144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011065751.3A Pending CN112103692A (en) | 2020-10-01 | 2020-10-01 | Improved photovoltaic system connector with excellent electrical performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112103692A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713431A (en) * | 2021-01-13 | 2021-04-27 | 苏州快可光伏电子股份有限公司 | High-reliability and excellent-electrical-performance photovoltaic system connector |
-
2020
- 2020-10-01 CN CN202011065751.3A patent/CN112103692A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112713431A (en) * | 2021-01-13 | 2021-04-27 | 苏州快可光伏电子股份有限公司 | High-reliability and excellent-electrical-performance photovoltaic system connector |
| CN112713431B (en) * | 2021-01-13 | 2022-04-19 | 苏州快可光伏电子股份有限公司 | High-reliability and excellent-electrical-performance photovoltaic system connector |
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