CN216818770U

CN216818770U - PT connecting cable

Info

Publication number: CN216818770U
Application number: CN202220525455.5U
Authority: CN
Inventors: 柳彬
Original assignee: Wuhan Conet Electric Co ltd
Current assignee: Wuhan Conet Electric Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-06-24
Anticipated expiration: 2032-03-11

Abstract

The utility model discloses a PT (potential transformer) connecting cable, which relates to the technical field of PT connecting cables and aims at solving the problems in the prior art. According to the utility model, the first metal contact and the second metal contact are lapped, so that two bolts respectively penetrate through the two fixing blocks, the nut is connected with the bolt, the connection of a cable and the PT plug is realized, the nut is unscrewed, and the PT plug can be detached and replaced, so that the connecting structure is convenient.

Description

PT connecting cable

Technical Field

The utility model relates to the technical field of PT connecting cables, in particular to a PT connecting cable.

Background

Along with the vigorous development of the smart power grid, more and more intelligent monitoring devices are applied to the power distribution cabinet. The intelligent monitoring equipment most all needs the external power supply, therefore the switch board is equipped with the PT cabinet at present phase mostly, is used for high pressure specially to get electric, vary voltage, supplies power for intelligent monitoring equipment, at present, can use the PT plug usually in the equipment cabinet body or cable branch box.

The prior art may refer to chinese patent publication No. CN213520594U, it discloses a PT connecting cable, which comprises a plug, a cable wire, a PT plug and a grounding wire, wherein the grounding wire is respectively arranged on the plug and the PT plug, the cable wires are mounted on the PT plug to form a PT plug assembly, the plug is mounted on the cable wires of the PT plug assembly, the plug and the cable line are detachably mounted, the plug comprises a front plug, the front plug is mounted on the cable line, one end of the PT plug combination is connected with the power distribution cabinet through the front plug, the other end of the PT plug combination is connected with a PT mutual inductor through a PT plug, the plug includes the back plug, the back plug is installed on the cable conductor, PT plug combination one end is passed through the back plug is connected with the preceding plug tail end of switch board, the PT plug combination other end passes through the PT plug and links to each other with the PT mutual-inductor.

In the prior art, the PT connecting cable still has some defects, and if the PT plug is damaged, the PT plug is inconvenient to replace, so that the PT connecting cable is provided,

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a PT connecting cable.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a PT connecting cable, includes cable conductor and PT plug, the one end of cable conductor is connected with first metal contact, the one end of PT plug is connected with second metal contact, the one end outer wall of cable conductor is connected with first solid fixed ring, the one end outer wall connection of PT plug has the solid fixed ring of second, the solid fixed ring's of second one end is connected with the solid fixed ring of second, be connected through coupling mechanism between first solid fixed ring and the solid fixed ring of second, first metal contact and second metal contact overlap joint.

Preferably, coupling mechanism is including installing the fixed pipe on the solid fixed ring top of second, the bolt is all installed to first solid fixed ring's bottom both sides, the fixed block is all installed to the outer wall top both sides of fixed pipe, and two bolts run through two fixed blocks respectively, and the equal spiro union in bottom of two bolts has the nut.

Preferably, the two bolts are the same size.

Preferably, an annular groove is formed in the bottom end of the first fixing ring, and the top end of the fixing pipe is clamped in the annular groove.

Preferably, a sealing ring is arranged in the annular groove, and the top end of the fixed pipe is abutted to the sealing ring.

Preferably, the inner wall of the fixed pipe is coated with a thermal barrier coating.

Preferably, the fixing tube is made of an insulating material.

The utility model has the beneficial effects that:

1. through lapping first metal contact and second metal contact for two bolts pass two fixed blocks respectively, with nut and bolted connection, thereby realize being connected of cable conductor and PT plug, unscrew the nut, but the PT plug is pulled down, changes, and is comparatively convenient.

2. Set up the ring channel through the bottom at first solid fixed ring, the top joint of fixed pipe plays limiting displacement in the ring channel, and improves structural stability, sets up the sealing washer in the ring channel for the top of fixed pipe offsets with the sealing washer, plays sealed effect, prevents that first metal contact and second metal contact from weing, can effectual increase of service life.

Drawings

Fig. 1 is a schematic cross-sectional view of a PT connection cable according to the present invention.

Fig. 2 is an enlarged schematic view of a PT connection cable of the present invention shown in fig. 1.

Fig. 3 is an enlarged schematic view of a PT connection cable shown in fig. 1 at B according to the present invention.

Fig. 4 is an enlarged structural view of a PT connection cable according to the present invention at C of fig. 1.

In the figure: 1. a cable wire; 2. a PT plug; 3. a first retaining ring; 4. a second retaining ring; 5. a fixed tube; 6. a fixed block; 7. a first metal contact; 8. a second metal contact; 9. an annular groove; 10. a seal ring; 11. a thermal barrier coating; 12. a bolt; 13. and a nut.

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.

Embodiment 1, refer to fig. 1-4, a PT connecting cable, including cable conductor 1 and PT plug 2, the one end of cable conductor 1 is connected with first metal contact 7, the one end of PT plug 2 is connected with second metal contact 8, the one end outer wall of cable conductor 1 is connected with first solid fixed ring 3, the one end outer wall of PT plug 2 is connected with solid fixed ring 4 of second, the one end of solid fixed ring 4 of second is connected with solid fixed ring 4 of second, be connected through coupling mechanism between first solid fixed ring 3 and the solid fixed ring 4 of second, first metal contact 7 and the overlap joint of second metal contact 8, realize the electric connection of cable conductor 1 and PT plug 2.

Coupling mechanism is including installing the solid fixed tube 5 on the solid fixed ring 4 top of second, and solid fixed tube 5 is made by insulating material, and bolt 12 is all installed to the bottom both sides of first solid fixed ring 3, and fixed block 6 is all installed to the outer wall top both sides of solid fixed tube 5, and two bolts 12 run through two fixed blocks 6 respectively, and the equal spiro union in bottom of two bolts 12 has nut 13, and two bolts 12's size is the same.

With first metal contact 7 and the overlap joint of second metal contact 8 for two bolts 12 pass two fixed blocks 6 respectively, are connected nut 13 and bolt 12, thereby realize being connected of cable conductor 1 and PT plug 2, unscrew nut 13, but PT plug 2 pulls down, changes, and is comparatively convenient.

Embodiment 2, this embodiment is optimized on the basis of embodiment 1, and specifically includes:

annular groove 9 has been seted up to first solid fixed ring 3's bottom, and the top joint of fixed pipe 5 plays limiting displacement in annular groove 9, and improves stability, is provided with sealing washer 10 in the annular groove 9, and the top of fixed pipe 5 offsets with sealing washer 10, plays sealed effect, prevents that first metal contact 7 and second metal contact 8 from weing.

Embodiment 3, this embodiment is optimized on the basis of embodiment 1, and specifically includes:

the inner wall coating of fixed pipe 5 has a thermal barrier coating 11, has certain thermal-insulated effect, plays certain guard action to cable conductor 1 and PT plug 2's junction, avoids the junction to be heated the inflation and reduces life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a PT connecting cable, includes cable conductor (1) and PT plug (2), its characterized in that, the one end of cable conductor (1) is connected with first metal contact (7), the one end of PT plug (2) is connected with second metal contact (8), the one end outer wall of cable conductor (1) is connected with first solid fixed ring (3), the one end outer wall of PT plug (2) is connected with the solid fixed ring of second (4), the one end of the solid fixed ring of second (4) is connected with the solid fixed ring of second (4), be connected through coupling mechanism between first solid fixed ring (3) and the solid fixed ring of second (4), first metal contact (7) and second metal contact (8) overlap joint.

2. The PT connection cable of claim 1, wherein the connection mechanism comprises a fixed tube (5) installed at the top end of a second fixed ring (4), bolts (12) are installed on two sides of the bottom end of the first fixed ring (3), fixed blocks (6) are installed on two sides of the top end of the outer wall of the fixed tube (5), two bolts (12) respectively penetrate through the two fixed blocks (6), and nuts (13) are screwed on the bottom ends of the two bolts (12).

3. A PT connecting cable according to claim 2, characterised in that the two bolts (12) are of the same size.

4. The PT connection cable of claim 2, characterized in that the first fixing ring (3) has an annular groove (9) at its bottom end, and the top end of the fixing tube (5) is engaged in the annular groove (9).

5. A PT connection cable according to claim 4, characterized in that a sealing ring (10) is arranged in the annular groove (9), the top end of the fixed tube (5) abutting against the sealing ring (10).

6. A PT connection cable according to claim 2, characterized in that the inner wall of the fixed tube (5) is coated with a thermal barrier coating (11).

7. A PT connecting cable according to claim 2, characterized in that the fixing tube (5) is made of an insulating material.