CN109546397B - Double-layer photovoltaic connector - Google Patents
Double-layer photovoltaic connector Download PDFInfo
- Publication number
- CN109546397B CN109546397B CN201811374512.9A CN201811374512A CN109546397B CN 109546397 B CN109546397 B CN 109546397B CN 201811374512 A CN201811374512 A CN 201811374512A CN 109546397 B CN109546397 B CN 109546397B
- Authority
- CN
- China
- Prior art keywords
- female
- male
- head
- protective layer
- protective shell
- 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.)
- Active
Links
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
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- 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
- H01R13/02—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
- H01R13/40—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
- H01R13/512—Bases; Cases composed of different pieces assembled by screw or screws
-
- 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
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
-
- 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
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/622—Screw-ring or screw-casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/005—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure requiring successive relative motions to complete the coupling, e.g. bayonet type
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses a double-layer photovoltaic connector, and relates to the technical field of photovoltaic power generation electric connectors; the device comprises a male head conductive current-carrying needle, a female head conductive current-carrying needle, a male head insulating protective layer, a female head insulating protective layer and a metal shell protective layer; the male conductive current-carrying needle is fixedly arranged in the male insulating protective layer, and the male insulating protective layer is arranged at one end in the metal shell protective layer; the female conductive current-carrying needle is fixedly arranged in the female insulating protective layer, and the female insulating protective layer is arranged at the other end in the metal shell protective layer; the invention has the beneficial effects that: the metal protective layer isolates air to form basic protection, and the insulating protective layer seals the conductor to form secondary protection, solves the problem that the inside and outside temperature difference causes insulation aging, and achieves firm and reliable protection.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation electric connectors, in particular to a double-layer photovoltaic connector.
Background
At present, electric connectors in domestic and international markets in the photovoltaic market are various in variety, and due to the fact that the connector is high in quality and low in difference, current transmission of a photovoltaic power plant has the characteristic of large current magnitude, and the power plant is often in fire disaster under the conditions that only one layer of plastic insulating shell is used for protection and the application environment is severe in the traditional method.
The solar photovoltaic power generation system is an optimal target selected by solar manufacturers at the present stage by selecting high-efficiency, stable and multilayer shell protection under the condition of human-oriented and safe production, is convenient to assemble under the same condition, and is an important factor selected by left and right customers in stable operation.
1, unstable current-carrying capacity causes the insulating layer to bear plastic deformation caused by the difference of continuous changes of external and internal temperatures, and the low thermal deformation point of the insulating layer directly causes the problems of expansion of the protective layer and the like, thereby losing protection or causing fire; 2. the external installation environment is severe: the temperature changes, long-time accumulated snow and cold impact directly cause the embrittlement of the plastic protective layer, and the hidden crack causes the failure of the outer protective layer; 3. chemical agent from external special environment attacks, the insulating layer which is directly contacted with the outside cracks, and the protection is lost due to water leakage.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the double-layer photovoltaic connector, the metal protective layer isolates air to form basic protection, the insulating protective layer seals the conductor to form secondary protection, the problem of insulation aging caused by internal and external temperature difference is solved, and firm and reliable protection is achieved.
The technical scheme adopted by the invention for solving the technical problems is as follows: in a double-layer photovoltaic connector, the improvement comprising: the device comprises a male head conductive current-carrying needle, a female head conductive current-carrying needle, a male head insulating protective layer, a female head insulating protective layer and a metal shell protective layer;
the male conductive current-carrying needle is fixedly arranged in the male insulating protective layer, and the male insulating protective layer is arranged at one end in the metal shell protective layer; the female conductive current-carrying needle is fixedly arranged in the female insulating protective layer, and the female insulating protective layer is arranged at the other end in the metal shell protective layer;
the male insulating protective layer comprises a first wire grabbing basket, a first sealing rubber head and a male double-insulating inner sleeve, the first sealing rubber head is clamped between the first wire grabbing basket and the male double-insulating inner sleeve, and the male conductive current-carrying needle is located in the male double-insulating inner sleeve; the female head insulating protective layer comprises a second wire grabbing basket, a second sealing rubber head, a female head double insulating inner sleeve and a sealing gasket, the second sealing rubber head is clamped between the second wire grabbing basket and the female head double insulating inner sleeve, and the female head conductive current-carrying needle is positioned in the female head double insulating inner sleeve;
the metal shell protective layer comprises a first metal nut, a male secondary protective shell, a female secondary protective shell nut and a second metal nut; the female head secondary protective shell nut is in a circular tube shape, inner threads are arranged on the inner wall of the female head secondary protective shell nut, and the outer threads at the other end of the male head secondary protective shell nut are meshed with the inner threads of the female head secondary protective shell nut; the female head secondary protective shell is in a circular tube shape, one end of the female head secondary protective shell extends into and is movably fixed in the female head secondary protective shell nut, the outer wall of the other end of the female head secondary protective shell is provided with an external thread, and the second metal nut is meshed with the external thread of the female head secondary protective shell; the sealing gasket is extruded between the male secondary protective shell and the female secondary protective shell.
In the structure, the outer wall of the male secondary protective shell is provided with a notch, the nut of the female secondary protective shell is provided with a through positioning screw hole, and a locking screw is arranged in the positioning screw hole and is tightly pressed on the notch of the male secondary protective shell.
In the structure, the outer wall of the female-head secondary protection shell is provided with a notch, the nut of the female-head secondary protection shell is provided with a through positioning screw hole, and a locking screw is arranged in the positioning screw hole and is tightly pressed on the notch of the female-head secondary protection shell.
In the structure, the male conductive current-carrying needle comprises a male guide needle and a male snap ring, and the male snap ring is sleeved on the male guide needle.
In the above structure, the female conductive current-carrying needle includes a female conductive current-carrying fluid, a female conductive sheath, and a female snap ring; the female head snap ring is sleeved outside the female head conductive outer sleeve, and the female head conductive current carrier is inserted into the female head conductive outer sleeve.
The invention has the beneficial effects that: the outer layer protection is provided for one end of the male head through the external combination of the first metal nut and the male head secondary protection shell, the outer layer protection is provided for one end of the female head through the external structures of the female head secondary protection shell, the female head secondary protection shell nut and the second metal nut, meanwhile, the purpose of protecting the whole metal shell is achieved through the locking of the locking screw, air is isolated to form a basic isolation protection layer, the chemical reagent attack of the environment in the field can be borne, the cold and hot strength impact protection can be continuously and firmly provided, and the problems of hidden cracking and embrittlement cannot occur; the first wire grabbing flower basket, the first sealing rubber head and the male head double-insulation inner sleeve are combined to provide internal protection for one end of the male head, and the second wire grabbing flower basket, the second sealing rubber head and the female head double-insulation inner sleeve are combined to provide internal protection for one end of the female head; the middle effect through seal gasket, has carried out complete sealed with public first one end and female first one end, and isolated formation insulating protective layer with external, reach totally enclosed and secondary protection, public first electrically conductive current-carrying needle and female first electrically conductive current-carrying needle arrange inside insulating protective layer in, solved inside and outside difference in temperature too big and lead to insulating ageing problem, firm reliable, guaranteed that the power plant bears the weight of electric current can be stable under adverse circumstances, high-efficient long-term operation.
Drawings
Fig. 1 is a first exploded view of a bi-layer photovoltaic connector of the present invention.
Fig. 2 is a second exploded view of a bi-layer photovoltaic connector of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
Referring to fig. 1 and 2, the present invention discloses a double-layer photovoltaic connector, specifically, the double-layer photovoltaic connector includes a male conductive current-carrying needle 10, a female conductive current-carrying needle 20, a male insulating protective layer 30, a female insulating protective layer 40, and a metal shell protective layer 50, wherein the male conductive current-carrying needle 10 is inserted into the female conductive current-carrying needle 20 to realize electrical conduction. The male conductive current-carrying needle 10 is fixedly arranged in the male insulating protective layer 30, and the male insulating protective layer 30 is arranged at one end in the metal shell protective layer 50; the female conductive current-carrying needle 20 is fixedly arranged in the female insulating protective layer 40, and the female insulating protective layer 40 is arranged at the other end in the metal shell protective layer 50; the structure of male conductive current carrying pin 10 and female conductive current carrying pin 20 will be further described below.
As shown in fig. 1, the male insulation protection layer 30 includes a first wire-grabbing flower basket 301, a first sealing rubber head 302 and a male double insulation inner sleeve 303, the first sealing rubber head 302 is clamped between the first wire-grabbing flower basket 301 and the male double insulation inner sleeve 303, and the male conductive current-carrying pin 10 is located in the male double insulation inner sleeve 303; the female insulation protective layer 40 comprises a second wire grabbing flower basket 401, a second sealing rubber head 402, a female double insulation inner sleeve 403 and a sealing gasket 404, the second sealing rubber head 402 is clamped between the second wire grabbing flower basket 401 and the female double insulation inner sleeve 403, and the female conductive current-carrying needle 20 is located in the female double insulation inner sleeve 403.
Further, the metal shell protection layer 50 includes a first metal nut 501, a male secondary protection shell 502, a female secondary protection shell 503, a female secondary protection shell nut 504 and a second metal nut 505; public first secondary protective housing 502's both ends all be provided with the external screw thread, first metal nut 501 is connected on the external screw thread of public first secondary protective housing 502 one end, at this moment, the wire passes from first metal nut 501, and it is fixed to the wire through first line basket of flowers 301 of grabbing, wire and public first electrically conductive current-carrying needle 10 electric connection seal the one end of public first secondary protective housing 502 through first sealed gluey head 302, prevent that moisture, impurity from getting into inside public first secondary protective housing 502.
Furthermore, the female secondary protective housing nut 504 is in a shape of a circular tube, an internal thread is arranged on the inner wall of the female secondary protective housing nut 504, and an external thread at the other end of the male secondary protective housing 502 is meshed with the internal thread of the female secondary protective housing nut 504; the female secondary protective housing 503 is in a shape of a circular tube, one end of the female secondary protective housing is inserted into and movably fixed inside the female secondary protective housing nut 504, the outer wall of the other end of the female secondary protective housing nut is provided with an external thread, and the second metal nut 505 is meshed with the external thread of the female secondary protective housing 503; in this way, the male secondary protective housing 502 is butted with the female secondary protective housing 503, and at this time, the male conductive current-carrying needle 10 is inserted into the female conductive current-carrying needle 20; moreover, the sealing gasket 404 is squeezed between the male secondary protective housing 502 and the female secondary protective housing 503 to completely seal the gap between the male secondary protective housing 502 and the female secondary protective housing 503, thereby protecting the inside of the male secondary protective housing 502 and the inside of the female secondary protective housing 503.
In the above embodiment, the outer wall of the male secondary protective housing 502 is provided with a notch, the female secondary protective housing nut 504 is provided with a through positioning screw hole, and the positioning screw hole is provided with a locking screw 60, and the locking screw 60 is tightly pressed on the notch of the male secondary protective housing 502. The outer wall of the female secondary protective housing 503 is provided with a notch, the female secondary protective housing nut 504 is provided with a through positioning screw hole, a locking screw 60 is arranged in the positioning screw hole, and the locking screw 60 is tightly pressed on the notch of the female secondary protective housing 503.
For the male conductive current-carrying needle 10 and the female conductive current-carrying needle 20, the invention provides a specific embodiment, the male conductive current-carrying needle 10 comprises a male guide pin 101 and a male snap ring 102, and the male snap ring 102 is sleeved on the male guide pin 101; the female conductive current-carrying needle 20 comprises a female conductive current-carrying fluid 201, a female conductive outer sleeve 202 and a female snap ring 203; the female snap ring 203 is sleeved outside the female conductive sleeve 202, and the female conductive current carrier 201 is inserted into the female conductive sleeve 202.
In the structure, the first metal nut 501 is combined with the outer part of the male secondary protective shell 502 to provide outer protection for one end of the male head, the outer protection is provided for one end of the female head through the outer structures of the female secondary protective shell 503, the female secondary protective shell nut 504 and the second metal nut 505, the purpose of protecting the whole metal shell is achieved by locking the locking screw 60, a basic isolation protective layer is formed by isolating air, chemical reagent attack in the field can be borne, cold and hot strength impact protection can be continuously and firmly provided, and the problems of hidden cracking and embrittlement cannot occur; through the combination of the first wire grabbing flower basket 301, the first sealing rubber head 302 and the male double-insulation inner sleeve 303, internal protection is provided for one end of the male, and through the combination of the second wire grabbing flower basket 401, the second sealing rubber head 402 and the female double-insulation inner sleeve 403, internal protection is provided for one end of the female; the middle effect through seal gasket 404 that has carried out complete sealing with public first one end and female first one end, with external isolated insulating protective layer that forms, reach complete sealing and secondary protection, public first electrically conductive current-carrying needle 10 and female first electrically conductive current-carrying needle 20 arrange inside insulating protective layer in, solved inside and outside difference in temperature too big and lead to insulating ageing problem, firm reliable, guaranteed that the power plant bears the weight of electric current can be stable under adverse circumstances, high-efficient long-term operation.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A double-layer photovoltaic connector is characterized in that: the device comprises a male head conductive current-carrying needle, a female head conductive current-carrying needle, a male head insulating protective layer, a female head insulating protective layer and a metal shell protective layer;
the male conductive current-carrying needle is fixedly arranged in the male insulating protective layer, and the male insulating protective layer is arranged at one end in the metal shell protective layer; the female conductive current-carrying needle is fixedly arranged in the female insulating protective layer, and the female insulating protective layer is arranged at the other end in the metal shell protective layer;
the male insulating protective layer comprises a first wire grabbing basket, a first sealing rubber head and a male double-insulating inner sleeve, the first sealing rubber head is clamped between the first wire grabbing basket and the male double-insulating inner sleeve, and the male conductive current-carrying needle is located in the male double-insulating inner sleeve; the female head insulating protective layer comprises a second wire grabbing basket, a second sealing rubber head, a female head double insulating inner sleeve and a sealing gasket, the second sealing rubber head is clamped between the second wire grabbing basket and the female head double insulating inner sleeve, and the female head conductive current-carrying needle is positioned in the female head double insulating inner sleeve;
the metal shell protective layer comprises a first metal nut, a male secondary protective shell, a female secondary protective shell nut and a second metal nut; the female head secondary protective shell nut is in a circular tube shape, inner threads are arranged on the inner wall of the female head secondary protective shell nut, and the outer threads at the other end of the male head secondary protective shell nut are meshed with the inner threads of the female head secondary protective shell nut; the female head secondary protective shell is in a circular tube shape, one end of the female head secondary protective shell extends into and is movably fixed in the female head secondary protective shell nut, the outer wall of the other end of the female head secondary protective shell is provided with an external thread, and the second metal nut is meshed with the external thread of the female head secondary protective shell; the sealing gasket is extruded between the male secondary protective shell and the female secondary protective shell.
2. The bi-layer photovoltaic connector of claim 1, wherein: the outer wall of the male secondary protective shell is provided with a notch, the nut of the female secondary protective shell is provided with a through positioning screw hole, and a locking screw is arranged in the positioning screw hole and is tightly pressed on the notch of the male secondary protective shell.
3. The bi-layer photovoltaic connector of claim 1, wherein: the outer wall of the female-head secondary protective shell is provided with a notch, a penetrating positioning screw hole is formed in a nut of the female-head secondary protective shell, and a locking screw is arranged in the positioning screw hole and tightly pressed on the notch of the female-head secondary protective shell.
4. The bi-layer photovoltaic connector of claim 1, wherein: the male conductive current-carrying needle comprises a male guide needle and a male snap ring, and the male snap ring is sleeved on the male guide needle.
5. The bi-layer photovoltaic connector of claim 1, wherein: the female conductive current-carrying needle comprises a female conductive current-carrying body, a female conductive outer sleeve and a female snap ring; the female head snap ring is sleeved outside the female head conductive outer sleeve, and the female head conductive current carrier is inserted into the female head conductive outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374512.9A CN109546397B (en) | 2018-11-19 | 2018-11-19 | Double-layer photovoltaic connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374512.9A CN109546397B (en) | 2018-11-19 | 2018-11-19 | Double-layer photovoltaic connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109546397A CN109546397A (en) | 2019-03-29 |
| CN109546397B true CN109546397B (en) | 2020-11-03 |
Family
ID=65848038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811374512.9A Active CN109546397B (en) | 2018-11-19 | 2018-11-19 | Double-layer photovoltaic connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109546397B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112367032B (en) | 2020-10-28 | 2021-08-06 | 陈栋 | Protection component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204668660U (en) * | 2015-06-15 | 2015-09-23 | 安费诺科技(珠海)有限公司 | High reliability shields two core power connectors |
| CN204680783U (en) * | 2015-06-19 | 2015-09-30 | 安费诺科技(珠海)有限公司 | Screw lock terminal |
| CN204992118U (en) * | 2015-10-20 | 2016-01-20 | 安费诺电子装配（厦门）有限公司 | Waterproof connecting wire restraints |
| CN205429267U (en) * | 2016-03-17 | 2016-08-03 | 慈溪市鼎力塑胶有限公司 | Waterproof connector |
-
2018
- 2018-11-19 CN CN201811374512.9A patent/CN109546397B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204668660U (en) * | 2015-06-15 | 2015-09-23 | 安费诺科技(珠海)有限公司 | High reliability shields two core power connectors |
| CN204680783U (en) * | 2015-06-19 | 2015-09-30 | 安费诺科技(珠海)有限公司 | Screw lock terminal |
| CN204992118U (en) * | 2015-10-20 | 2016-01-20 | 安费诺电子装配（厦门）有限公司 | Waterproof connecting wire restraints |
| CN205429267U (en) * | 2016-03-17 | 2016-08-03 | 慈溪市鼎力塑胶有限公司 | Waterproof connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109546397A (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201927712U (en) | Connector for conducting wires | |
| CN106785766B (en) | 90 ° of curved formula terminal shield electric-connectors | |
| CN202978201U (en) | Intelligent high-voltage cable joint of built-in partial discharge sensor | |
| CN107317141B (en) | Connecting terminal with cooling function and electric connecting assembly | |
| CN110504646A (en) | A kind of line repair device | |
| CN109546397B (en) | Double-layer photovoltaic connector | |
| CN207426213U (en) | Connection terminal and electrical connection module with cooling function | |
| CN108832325B (en) | Wire connector capable of being disconnected | |
| CN202840002U (en) | Wire joint | |
| CN205790651U (en) | A kind of 3 core power supply water-proof connectors | |
| CN201725951U (en) | Connector conjugated with bellows cable | |
| CN205509458U (en) | Awl plug -in terminal in 35kV | |
| CN210781399U (en) | Armored heater | |
| CN214742308U (en) | Immersible pump cable inlet wire seal structure | |
| CN201789156U (en) | Solar cable connector | |
| CN204760567U (en) | Insulated wire L type connecting terminal | |
| CN209313405U (en) | The construction of cable restores formula and monitors transition joint on-line | |
| CN110534938A (en) | Water proof type connecting terminal | |
| CN202307461U (en) | Pure porcelain sleeve of transformer | |
| CN112467455A (en) | High waterproof plastic watertight connector | |
| CN107317140B (en) | Connection with cooling function terminal and electric connection assembly | |
| CN2932706Y (en) | Terrestrial heat electrothermal membrane fast-plug insulated waterproof cable | |
| CN213462380U (en) | Titanium heating pipe with good heat-conducting property | |
| CN202855924U (en) | High temperature resistant welding type cable connector | |
| CN211265829U (en) | Underwater pressure-resistant feed cable connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |