CN215119489U

CN215119489U - Conversion connector

Info

Publication number: CN215119489U
Application number: CN202121482259.6U
Authority: CN
Inventors: 应伟亮; 龚海晏
Original assignee: Zhixing Electronics Suzhou Co ltd
Current assignee: Zhixing Electronics Suzhou Co ltd
Priority date: 2021-07-01
Filing date: 2021-07-01
Publication date: 2021-12-10
Anticipated expiration: 2031-07-01

Abstract

The utility model provides a conversion connector, which comprises an insulating cylinder 200 and an outer shell 300, wherein a small end inner hole 202 of the insulating cylinder 200 is provided with a jack component 204; the outer housing 300 comprises a fixed outer housing part 301, a locking outer housing part 302 and a sliding sleeve 303; the fixed shell part 301 comprises a first clamping seat 304 and a second clamping seat 305, and the side walls of the first clamping seat 304 and the second clamping seat 305 are connected into a whole through a fixing piece; the first clamping seat 304 and the second clamping seat 305 are symmetrical concentric semi-circular arc structures, and the sum of the radian of the first clamping seat 304 and the radian of the second clamping seat 305 is less than 360 degrees. The utility model discloses a conversion connector adopts the setting of centre gripping casing, acts on the big moment of torsion on conversion connector when effectively having solved the installation, has avoided the pine of connector inner structure to take off, has strengthened the holistic ground connection continuity of connector, has improved the safety in utilization.

Description

Conversion connector

Technical Field

The utility model relates to an live working equipment technical field, in particular to a conversion connector device for looped netowrk cabinet bypass live working.

Background

The bypass live working method is a live working method which applies a bypass cable system, bypass drainage equipment such as a bypass switch and the like is connected with a ring main unit in an electric power system, and can complete the working items such as emergency repair, temporary power supply and the like under the condition of uninterrupted power failure or transient power failure.

The conversion connection scheme between the ring main unit outlet sleeve and the direct plug connector of the bypass system adopted in the current market is generally as follows: the method comprises the following steps of firstly, adopting a T-shaped plug to be fixedly connected with a ring main unit outlet sleeve, connecting the T-shaped plug with a middle direct-plug connector through a small section of cable, then connecting the middle direct-plug connector with a middle connector in an opposite-plug manner, and finally connecting the middle connector with a direct-plug connector of a bypass system in an opposite-plug manner. When the bypass point taking scheme is implemented, a plurality of cables and cable accessories are needed, the connection needs to be converted for a plurality of times, the operation time is long, the power supply reliability is poor, and the use cost is high.

The connector assembly of application No. 202011030138.8 provides a simplified bypass connection assembly having external threads directly disposed on one end of the electrical conductor for threaded connection with an equipment bushing interface on a ring main unit. During installation, the connector needs to be inserted into the equipment sleeve interface through the second slot, and after the connector is inserted into a certain position, the connector is integrally rotated to be connected to the sleeve interface in a threaded mode. However, because the connector and the sleeve are tightly matched, the conductor of the connector needs to bear a large torque, and the conductor, the insulator and the shield are formed by thermal molding, so that the conductor and the insulator are easy to loosen, the insulation and partial discharge performance is affected, and potential safety hazards are caused.

Disclosure of Invention

The utility model aims at providing a conversion connector device can directly realize the transitional coupling between looped netowrk cabinet and the direct plug connector of bypass system, when simplifying connector device, improves current-carrying capacity, job stabilization nature and security.

To achieve the above object, the present invention provides a conversion connector comprising: the insulation barrel is arranged in the outer shell, the insulation barrel is provided with a small-end inner hole and a large-end inner hole which are communicated, the large-end inner hole is used for inserting an external outgoing line sleeve, the small-end inner hole is provided with a jack assembly, and the tail end of the jack assembly is provided with an external thread, extends into the large-end inner hole of the insulation barrel and is used for being connected with the outgoing line sleeve; a shielding layer is arranged between the insulating cylinder body and the outer shell body as well as between the insulating cylinder body and the jack assembly, and the outer shell body comprises a fixed outer shell part, a locking outer shell part and a sliding sleeve; the fixed shell part is arranged outside the large-end outer cylinder of the insulating cylinder, and an insertion groove for directly inserting the connector to the outside is formed between the locking shell part and the insulating cylinder; the sliding sleeve is sleeved on the locking shell part, a locking mechanism is arranged between the sliding sleeve and the locking shell part, and the locking mechanism is used for locking the conversion connector and an external direct-insertion connector; the fixed shell part comprises a first clamping seat and a second clamping seat, and the side walls of the first clamping seat and the second clamping seat are connected into a whole through a fixing part; the first clamping seat and the second clamping seat are of symmetrical concentric semi-circular arc structures, and the sum of the radians of the first clamping seat and the second clamping seat is less than 360 degrees. The utility model discloses a centre gripping pedestal has increased the radial clamping-force between outer shield, shell body and the insulating cylinder to improve the insulating cooperation between insulating cylinder and the outside wire sleeve pipe, and ensure that the ground connection between each part is continuous.

The outer cylinder body at the large end of the insulating cylinder body is provided with an outer shielding layer so as to provide electromagnetic shielding between the outer shell and the insulating cylinder body; an inner shielding layer is arranged between the rear end of the jack component and the insulating cylinder body so as to provide electromagnetic shielding between the jack component and the insulating cylinder body. The outer shielding layer and the inner shielding layer are made of semi-conductive materials.

Further, the internal surface of first grip slipper and second grip slipper respectively is provided with at least one heavy groove that does not communicate, the surface of the outer shielding layer of conversion head respectively sets up at least one corresponding boss from top to bottom, avoids the axial float and the radial rotation of conversion head in the shell body through the cooperation of the heavy groove of the upper and lower boss and first, second grip slipper on outer shielding layer to realize that conversion head and shell body form an overall structure, can effectively ensure the ground connection continuity of conversion connector in high pressure application, improve the safety in utilization.

Furthermore, the tail end of the locking outer shell portion is provided with an annular outer flange, the front ends of the first clamping seat and the second clamping seat are provided with a semi-annular groove, and the annular outer flange of the locking outer shell portion is clamped in the semi-annular grooves of the first clamping seat and the second clamping seat. Optionally, an annular groove is formed in the tail end of the locking outer shell portion, semi-annular inner flanges are arranged at the front ends of the first clamping seat and the second clamping seat, and the annular groove of the locking outer shell portion is clamped with the semi-annular inner flanges of the first clamping seat and the second clamping seat.

Furthermore, first, second grip slipper is equipped with prevents changeing the cylindric lock, the tail end of locking shell portion is equipped with dodges the groove, during the installation, thereby dodge the groove and prevent changeing the cylindric lock cooperation and prevent locking shell portion radial rotation in first, second seat.

One end of the conversion connector is directly connected with the outgoing line sleeve on the ring main unit, and the other end of the conversion connector is connected with the direct-insert connector of the bypass cable, so that the structure of the connector device is simplified; the utility model discloses the big moment of torsion of effect on conversion connector jack subassembly when effectively having solved the installation is taken off in the setting of centre gripping casing, has avoided the pine of connector inner structure, has reduced insulating inefficacy risk and partial discharge inefficacy risk by a wide margin to increased the radial clamping-force between outer shield, shell body and the insulator, thereby ensured the inseparable cooperation between insulator and the sleeve pipe and carried high insulating cooperation performance between the two, the radial clamping-force of increase can also ensure to have the tight fit between each part and guarantee that the holistic ground connection continuity of product has improved safety in utilization. The utility model discloses a conversion connector also can be used to the conversion of the cut-in electrical connection of conventional regulator cubicle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of the connector of the present invention connected to an external power supply;

FIG. 2 is a schematic view of a longitudinal cross-section of the connector;

FIG. 3 is a schematic view in transverse cross-section of the connector;

FIG. 4 is a schematic view of a retainer of the connector;

fig. 5 is a schematic view of a lock housing of the connector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, the conversion connector 100 of the present invention can directly implement transition connection between an outlet bushing 500 of a ring main unit and a direct plug connector 600 of a bypass power-taking system.

As shown in fig. 2 and 3, the conversion connector 100 of the present invention includes an insulative cylinder 200, and an outer housing 300, wherein the insulative cylinder 200 is disposed in the outer housing 300. Insulating cylinder 200 is including having tip hole 202 and the main aspects hole 203 that link up, tip hole 202 cover is equipped with socket component 204, socket component 204 is used for forming the electricity with direct plug connector 600 and is connected be equipped with the shielding layer between insulating cylinder 200 and shell body 300, socket component 204. The tail end of the jack assembly 204 is provided with an external thread 205, and extends into the large-end inner hole 202 of the insulating cylinder 200 for connecting with a threaded hole of an outlet sleeve 500 of the ring main unit.

The large-end outer cylinder 201 of the insulating cylinder 200 is provided with an outer shielding layer 401 to provide electromagnetic shielding between the outer shell 300 and the insulating cylinder 200; an inner shield layer 402 is disposed between the rear end of the jack assembly 204 and the insulating cylinder 200 to provide electromagnetic shielding between the jack assembly 204 and the insulating cylinder 200. The outer shield layer 401 and the inner shield layer 402 may be semiconductive layers.

The outer housing 300 includes a stationary outer housing portion 301, a locking outer housing portion 302, and a sliding sleeve 303.

The fixed shell part 301 is in a straight cylinder shape and is arranged outside the large-end outer cylinder body 201 of the insulating cylinder body 200; the locking shell part 302 is connected with the end part of the fixed shell part 301, and a slot of a direct plug-in connector 600 of a bypass power taking system is formed between the locking shell part 302 and the insulating cylinder body 200; the sliding sleeve 303 is sleeved on the locking casing part 302, and a locking mechanism is arranged between the sliding sleeve 303 and the locking casing part 302 and used for locking the connection between the conversion connector 100 and the direct plug-in connector 600.

As shown in fig. 3 and 4, the fixed housing part 301 includes a first holder 304 and a second holder 305, the first holder 304 and the second holder 305 are symmetrical concentric semi-circular arc structures, the sum of the radians of the first holder 304 and the second holder 305 is less than 360 °, and the radians of the first holder 304 and the second holder 305 are preferably 170 ° to 178 °. As shown in fig. 1, the two side walls of the first clamping seat 301 and the second clamping seat 302 are connected to form a whole through a fixing member, such as a plurality of screws 318, and the fixed outer shell portion arranged separately can facilitate the connection between the connector 100 and the ring main unit outlet sleeve 500, and the sum of the radians of the two

clamping seats

304 and 305 is less than 360 degrees, so that the outer shield 401 can be clamped to a greater extent, the radial clamping force between the outer shield 401, the outer shell 300 and the insulating cylinder 200 is increased, and the grounding continuity between the components is ensured.

The inner surfaces of the first clamping seat 304 and the second clamping seat 305 are respectively provided with at least one non-communicated sunk groove 319, the upper surface and the lower surface of the outer shielding layer 201 are respectively provided with at least one corresponding boss 320, and the upper bosses 320 and the lower bosses 320 of the outer shielding layer 201 are matched with the sunk grooves 319 of the first clamping seat 301 and the second clamping seat 302 to avoid axial movement and radial rotation of the outer shielding layer 201 in the outer shell 300, so that the conversion connector 100 forms an integral structure, the grounding continuity of the conversion connector in high-voltage application can be effectively ensured, and the use safety is improved. The locking housing portion 302 is also provided with a grounding screw 330. In addition, the outer surfaces of the first and

second holders

304, 305 are knurled to facilitate the gripping rotation of the conversion connector 100.

As shown in fig. 4 and 5, an annular outer flange 306 is disposed at the rear end of the locking housing portion 302, and a semi-annular groove 307 is disposed at the front end of the first holder 304 and the second holder 305, so that the annular outer flange 306 is clamped in the semi-annular groove 307 during installation, thereby preventing the locking housing portion 302 from moving axially in the fixed housing portion 301. As a modified example, the rear end of the locking housing portion 302 is provided with an annular groove, the front ends of the first holder 304 and the second holder 305 are provided with semi-annular inner flanges, and when the locking housing portion 302 is installed, the annular groove of the locking housing portion 302 is clamped with the semi-annular inner flanges of the first holder 304 and the second holder 305.

The first clamping seat 304 and the second clamping seat 305 are respectively provided with an anti-rotation cylindrical pin 308, and the tail end of the locking shell portion 302 is provided with two avoiding grooves 309, wherein the avoiding grooves 309 are matched with the anti-rotation cylindrical pins 308 so as to prevent the locking shell portion 302 from radially rotating in the first clamping seat 304 and the second clamping seat 305. As a modification, it is also possible to provide only one anti-rotation cylindrical pin 308 in the first holder 304 or the second holder 305, and correspondingly, only one evasion groove 309 is provided at the rear end of the lock housing portion 302.

As shown in fig. 2, a locking mechanism is provided between the sliding sleeve 303 and the locking housing portion 302 for locking when the conversion connector 100 is connected to the direct plug connector 600 of the bypass cable. The locking mechanism comprises a plurality of radial conical limiting holes arranged at the front end of the locking shell part 302, and a plurality of steel balls 310 are respectively arranged in the limiting holes; the sliding sleeve 303 is fitted around the front end of the locking housing portion 302, and an end cap 311 is connected to an end of the locking housing portion 302. An inner flange 312 is arranged on the inner surface of the sliding sleeve 303, a step surface 313 is arranged in the middle of the locking shell 302, a spring 314 is arranged in a cavity formed between the inner flange 312 of the sliding sleeve 303 and the step surface 313 of the locking shell 302, the spring 314 abuts against the end cover 311 of the sliding sleeve 303 and presses the inner flange 312 of the sliding sleeve 303 on the steel ball 310 in an initial state, so that the steel ball 310 partially protrudes out of the inner surface of the locking shell 302 for clamping and matching with the straight-plugging connector 600, and the locking state of the conversion connector 100 and the straight-plugging connector 600 is ensured; two unlocking cylindrical pins 315 are arranged in the middle of the locking shell part 302, and two L-shaped slots 316 are respectively arranged at the upper and lower parts of the tail end of the sliding sleeve 303; during unlocking, the sliding sleeve 303 is slid rightwards and rotated, so that the two L-shaped grooves 316 in the sliding sleeve 303 are clamped on the two unlocking cylindrical pins 315 respectively, the inner flange 312 of the sliding sleeve 303 is separated from the steel ball 310 at the moment, the unlocking state is kept, the steel ball 310 is in a free moving state at the moment, when the straight plugging connector 600 of the bypass cable moves, acting force can be applied to the steel ball 310, and the steel ball 310 retracts into the limiting hole, so that the straight plugging connector 600 can be pulled out.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A conversion connector comprising an insulating cylinder (200) and an outer housing (300), characterized in that: the insulation cylinder (200) is arranged in the outer shell (300), the insulation cylinder (200) is provided with a through small end inner hole (202) and a through large end inner hole (203), the large end inner hole (203) is used for being plugged with an external outgoing line sleeve (500), and the small end inner hole (202) is provided with a jack assembly (204); the tail end of the jack assembly (204) extends into the large-end inner hole (203) of the insulating cylinder (200) and is connected with the wire outlet sleeve (500); a shielding layer is arranged between the insulating cylinder (200) and the outer shell (300) and between the insulating cylinder and the jack component (204); the outer shell (300) comprises a fixed outer shell part (301), a locking outer shell part (302) and a sliding sleeve (303); the fixed shell part (301) is arranged outside the large-end outer cylinder body (201) of the insulating cylinder body (200), and a slot for directly inserting the connector (600) is formed between the locking shell part (302) and the insulating cylinder body (200); the sliding sleeve (303) is sleeved on the locking shell part (302), a locking mechanism is arranged between the sliding sleeve (303) and the locking shell part (302), and the locking mechanism is used for connecting and locking the conversion connector (100) and the external direct-insertion connector (600); the fixed shell part (301) comprises a first clamping seat (304) and a second clamping seat (305), and the side walls of the first clamping seat (304) and the second clamping seat (305) are connected into a whole through a fixing piece; the first clamping seat (304) and the second clamping seat (305) are of symmetrical concentric semi-circular arc structures, and the sum of the radians of the first clamping seat (304) and the second clamping seat (305) is less than 360 degrees.

2. The conversion connector of claim 1, wherein: the radian of the first clamping seat (304) and the second clamping seat (305) is 170-178 degrees.

3. The conversion connector of claim 1, wherein: the tail end of the jack assembly (204) is provided with external threads (205) for being in threaded connection with the outgoing line sleeve (500).

4. The conversion connector of claim 1, wherein: the shielding layer comprises an outer shielding layer (401) arranged outside the large-end outer cylinder (201) of the insulating cylinder (200) and an inner shielding layer (402) arranged between the rear end of the jack component (204) and the insulating cylinder (200).

5. The conversion connector of claim 4, wherein: the outer shielding layer (401) and the inner shielding layer (402) are made of semi-conductive materials.

6. The conversion connector of claim 4, wherein: the inner surfaces of the first clamping seat (304) and the second clamping seat (305) are respectively provided with at least one non-communicated sunk groove (319), and the upper part and the lower part of the outer surface of the outer shielding layer (401) are respectively provided with at least one corresponding boss (320).

7. The conversion connector of claim 1, wherein: the tail end of the locking outer shell portion (302) is provided with an annular outer flange (306), the front ends of the first clamping seat (304) and the second clamping seat (305) are provided with a semi-annular groove (307), and the annular outer flange (306) is clamped in the semi-annular groove (307).

8. The conversion connector of claim 1, wherein: the tail end of the locking outer shell portion (302) is provided with an annular groove, the front ends of the first clamping seat (304) and the second clamping seat (305) are provided with semi-annular inner flanges, and the annular groove of the locking outer shell portion (302) is clamped with the semi-annular inner flanges of the first clamping seat (304) and the second clamping seat (305).

9. The conversion connector of any one of claims 7 or 8, wherein: the first clamping seat (304) and the second clamping seat (305) are respectively provided with an anti-rotation cylindrical pin (308), and the tail end of the locking shell part (302) is provided with two avoiding grooves (309).

10. The conversion connector of any one of claims 7 or 8, wherein: one of the first clamping seat (304) and the second clamping seat (305) is provided with an anti-rotation cylindrical pin (308), and the tail end of the locking shell part (302) is provided with an avoiding groove (309) matched with the anti-rotation cylindrical pin (308).