CN204088737U - Photovoltaic connector - Google Patents
Photovoltaic connector Download PDFInfo
- Publication number
- CN204088737U CN204088737U CN201420397236.9U CN201420397236U CN204088737U CN 204088737 U CN204088737 U CN 204088737U CN 201420397236 U CN201420397236 U CN 201420397236U CN 204088737 U CN204088737 U CN 204088737U
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- Prior art keywords
- plug
- anode
- cathode
- nut
- hole
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Abstract
A kind of photovoltaic connector of the utility model, described photovoltaic connector includes cathode plug (5) and the anode plug (7) of mutual grafting, the head of cathode plug (5) and anode plug (7) is provided with external screw thread, described negative terminal (4) and positive terminal (8) insert in the through hole of above-mentioned cathode plug (5) and anode plug (7) respectively, and the through hole of cathode plug (5) and anode plug (7) is being provided with annular chamfer near externally threaded one end; The claw (3.1) inserted on the tightening ring (2) in cathode plug (5) and anode plug (7) through hole installs on above-mentioned annular chamfer, wire bushing (2) is set with in this tightening ring (3), the external screw thread of cathode plug (5) and anode plug (7) all revolves and is equipped with nut (1), and in wire bushing (2) and tightening ring (3) be wrapped in by nut (1), and the nut of nut (1) has through hole.A kind of photovoltaic connector of the utility model, easy to connect and solid and reliable.
Description
Technical field
The utility model relates to a kind of connector, especially relate to a kind of for photovoltaic field and device inside cable fix and adopt the connector of clamping type, belong to field of photovoltaic technology.
Background technology
The transmission of electricity connection of between solar power generation assembly and photovoltaic power station system inside, all adopts mutual-inserting type to connect electric connector, has foreign brand name product also to have homemade goods, almost adopt same standard to interface; Photovoltaic connector is except possessing the performances such as cold-resistant, heat-resisting, ageing-resistant, high flame retardant, shock resistance, also must meet following requirement: connector outlet cable withdrawal force is greater than 300N, occur to loosen to affect to be energized or to leak electricity to prevent solar components cable and connector in transport, carrying, installation process, the longer the better, to meet anticreep safe class to outside creepage distance for the inner exposed electric conductor of connector;
At present, connector conventional in industry---as shown in Figure 5, cable is fixing all adopts metal spacing ring, and the multiple pawls that turn up on back-off electrical terminals realize the object of fixed position, belong to the indirect fixing means of cable, constant intensity crimps the intensity had with cable core based on electrical terminals, in addition, because electrical terminals uses high conductive red copper manufacture, obviously, the pawl turned up is subject to the shearing of the spacing ring button bit manufactured with steel, is difficult to bear 300N or higher pulling force.Therefore, the connector used in industry 100% cannot reach the requirement of cable withdrawal force.Moreover, owing to will arrange for the fixing pawl that turns up at electrical terminals rear portion, electrical terminals removes effective power part exceptionally, also to increase pawl section of turning up, changeover portion, crimping cable core section, three parts are added composition binding post rear end, because rear end is metallic object, inner at a full-length connector, accounted for most of insulator length space, anticreep safety standard under cannot meeting high voltage environment.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of photovoltaic connector, when this connector is used as attached cable, has both increased cable withdrawal force, and has shortened again conducting terminal tail length, thus adds inner creepage distance raising proof voltage grade.
The purpose of this utility model is achieved in that a kind of photovoltaic connector, described photovoltaic connector includes cathode plug and the anode plug of mutual grafting, the head of described cathode plug and anode plug is provided with external screw thread, described negative terminal and positive terminal insert in the through hole of above-mentioned cathode plug and anode plug respectively, and the through hole of described cathode plug and anode plug is being provided with annular chamfer near externally threaded one end (being also via bottoms); The claw inserted on the tightening ring in cathode plug and anode plug through hole installs on above-mentioned annular chamfer, and be set with wire bushing in tightening ring, the external screw thread of cathode plug and anode plug all revolves and is equipped with nut, and in wire bushing and tightening ring be wrapped in by nut, and the nut of nut has through hole; Tightening ring reach is promoted when nut check, under the effect of annular chamfer, claw presses cable generation bed knife, and the through hole that the nut of nut has passes by cable, be rolled on cable by nut by wire bushing and tightening ring press packed bale, the bed knife produced like this realizes the sealing to cable.
The utility model photovoltaic connector, the through hole of described cathode plug and anode plug is stepped hole, and the aperture of the stepped hole of cathode plug and anode plug screw thread one end is toward the outside greater than the aperture of the other end, described negative terminal and positive terminal insert in the stepped hole of above-mentioned cathode plug and anode plug respectively, and the guide vane end stop that the head of negative terminal and positive terminal is arranged is placed on the step surface of above-mentioned cathode plug and anode plug.
The utility model photovoltaic connector, annular chamfer is arranged on the inwall of large aperture end of the stepped hole of cathode plug and anode plug; The circle wall of one end that tightening ring contacts with annular chamfer is axially provided with many grooves along it and forms claw, in wire bushing and tightening ring are wrapped in by the cavity that the stepped hole of nut and cathode plug or anode plug is formed.
Compared with prior art, the beneficial effects of the utility model are:
Metal electrical terminals rear end of the present utility model, only be preserved for the part of crimping cable core, make connector chamber inner cable insulated hull obtain maximum length, the different classes of grade of adapted connector body working of plastics material, can meet the anticreep requirement of the highest 1500V electric pressure; And the utility model adopts the mode of clamp to be fixed cable, has both increased cable withdrawal force, has shortened again conducting terminal tail length, thus add inner creepage distance raising proof voltage grade.
Accompanying drawing explanation
Fig. 1 is the assembling effect schematic diagram of the utility model photovoltaic connector.
Fig. 2 is the stereoeffect schematic diagram of the utility model photovoltaic connector.
Fig. 3 is the front view of the utility model photovoltaic connector.
Fig. 4 is the A-A cutaway view of the utility model photovoltaic connector Fig. 3.
Fig. 5 is the structural representation of conventional connector.
Wherein:
Nut 1, wire bushing 2, tightening ring 3, claw 3.1, negative terminal 4, cathode plug 5, O coil 6, anode plug 7, positive terminal 8, sealing ring 9.
Embodiment
See Fig. 1 ~ 4, a kind of photovoltaic connector that the utility model relates to, described photovoltaic connector includes cathode plug 5 and the anode plug 7 of mutual grafting, the head of described cathode plug 5 and anode plug 7 is provided with external screw thread, described cathode plug 5 and anode plug 7 all have stepped hole, and the aperture of the stepped hole of cathode plug 5 and anode plug 7 screw thread one end is toward the outside greater than the aperture of the other end, described negative terminal 4 and positive terminal 8 insert in the stepped hole of above-mentioned cathode plug 5 and anode plug 7 respectively, and the guide vane end stop that the head of negative terminal 4 and positive terminal 8 is arranged is placed on the step surface of above-mentioned cathode plug 5 and anode plug 7, thus realize position-limiting action,
The stepped hole of described cathode plug 5 and anode plug 7 is provided with annular chamfer on the inwall of large aperture end, tightening ring 3 is all inserted with in the large aperture end of described cathode plug 5 and anode plug 7 stepped hole, wire bushing 2 is set with in this tightening ring 3, and the circle wall of one end that contacts with annular chamfer of tightening ring 3 is axially provided with many grooves along it, thus the circle wall of tightening ring 3 is separated into the list structure that polylith is separated from each other, thus form contraction claw 3.1 structure---concretely, one end of tightening ring 3 is claw 3.1, coordinate with annular chamfer that to realize cable fastening, the petal-shaped inner chamber of the other end is used for putting into wire bushing 2 pairs of cables provides protection and sealing, and the pars intermedia of tightening ring 3 is set with sealing ring 9, the external screw thread of cathode plug 5 and anode plug 7 all revolves and is equipped with nut 1, and in wire bushing 2 and tightening ring 3 be wrapped in by the cavity that the stepped hole of nut 1 and cathode plug 5 or anode plug 7 is formed, and the nut of nut 1 has through hole,
During use, the cable at two ends has crimped negative terminal 4 and positive terminal 8 respectively, and terminal head inserts towards nut through hole through after nut 1, wire bushing 2, tightening ring 3 and puts in place; Then tightening nut 1, due to coordinating of the claw 3.1 on tightening ring 3 and annular chamfer in cathode plug 5 or anode plug 7 stepped hole, makes cable constantly compacted, thus is connected and fixed firmly;
In addition: it should be noted that above-mentioned embodiment is only an optimization scheme of this patent, any change that those skilled in the art does according to above-mentioned design or improvement, all within the protection range of this patent.
Claims (3)
1. a photovoltaic connector, it is characterized in that: described photovoltaic connector includes cathode plug (5) and the anode plug (7) of mutual grafting, the head of described cathode plug (5) and anode plug (7) is provided with external screw thread, described negative terminal (4) and positive terminal (8) insert in the through hole of above-mentioned cathode plug (5) and anode plug (7) respectively, and the through hole of described cathode plug (5) and anode plug (7) is being provided with annular chamfer near externally threaded one end; The claw (3.1) inserted on the tightening ring (3) in cathode plug (5) and anode plug (7) through hole installs on above-mentioned annular chamfer, and be set with wire bushing (2) in tightening ring (3), the external screw thread of cathode plug (5) and anode plug (7) all revolves and is equipped with nut (1), and in wire bushing (2) and tightening ring (3) be wrapped in by nut (1), and the nut of nut (1) has through hole.
2. a kind of photovoltaic connector as claimed in claim 1, it is characterized in that: the through hole of described cathode plug (5) and anode plug (7) is stepped hole, and the aperture of the stepped hole of cathode plug (5) and anode plug (7) screw thread one end is toward the outside greater than the aperture of the other end, described negative terminal (4) and positive terminal (8) insert in the stepped hole of above-mentioned cathode plug (5) and anode plug (7) respectively, and the guide vane end stop that the head of negative terminal (4) and positive terminal (8) is arranged is placed on the step surface of above-mentioned cathode plug (5) and anode plug (7).
3. a kind of photovoltaic connector as claimed in claim 2, is characterized in that: annular chamfer is arranged on the inwall of the large aperture end of the stepped hole of cathode plug (5) and anode plug (7); The circle wall of one end that tightening ring (3) contacts with annular chamfer is axially provided with many grooves along it and forms claw (3.1), in wire bushing (2) and tightening ring (3) are wrapped in by the cavity that the stepped hole of nut (1) and cathode plug (5) or anode plug (7) is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397236.9U CN204088737U (en) | 2014-07-18 | 2014-07-18 | Photovoltaic connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397236.9U CN204088737U (en) | 2014-07-18 | 2014-07-18 | Photovoltaic connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088737U true CN204088737U (en) | 2015-01-07 |
Family
ID=52181411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397236.9U Expired - Fee Related CN204088737U (en) | 2014-07-18 | 2014-07-18 | Photovoltaic connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204088737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600470A (en) * | 2015-02-11 | 2015-05-06 | 苏州同泰新能源科技有限公司 | Photovoltaic connector |
-
2014
- 2014-07-18 CN CN201420397236.9U patent/CN204088737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600470A (en) * | 2015-02-11 | 2015-05-06 | 苏州同泰新能源科技有限公司 | Photovoltaic connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20180718 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |