CN216850519U

CN216850519U - Single-core cable connector

Info

Publication number: CN216850519U
Application number: CN202220090578.0U
Authority: CN
Inventors: 万丽容; 李菁
Original assignee: Guangdong Shengte Electric Co ltd
Current assignee: Guangdong Shengte Electric Co ltd
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-28
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a single core cable connector, including cable core, sleeve pipe and PVC sticky tape, the parcel of the cable core outside has cable protection cover, and the parcel of the cable protection cover outside has the epoxy connecting pipe, the sleeve pipe wraps up in the epoxy connecting pipe outside, and the inside socket that is provided with of sleeve pipe lower extreme, the laminating of the cable protection cover outside has the copper braided wire. This single core cable connector is provided with combined type bolt, combined type bolt and cable core carry out the crimping in an organic whole through hydraulic tong, it has stainless steel skeleton to have in, can realize plug many times, and the tension at conduction power position is bigger, bearing capacity is stronger, its current-carrying capacity is compared with the specification, improved 2-3 times, and the cooperation tolerance size requirement also reduces relatively, it is more convenient and reliable to install, and compare with the conventionality, the combined type can reach plug many times and indeformable, make the maintenance of product more convenient, and life is longer.

Description

Single-core cable connector

Technical Field

The utility model relates to a transformer wiring end technical field specifically is a single core cable connector.

Background

With the use of products and the improvement of technology, the cable connector is widely applied to the field of wiring ends of transformers, the three-phase plug-in type cable terminal can be well matched and sealed with the sleeve, but due to the fact that the requirement on installation accuracy is high, operation faults are easily caused due to the fact that the three-phase plug-in type cable terminal is not installed in place in the using process, and the conditions that current-carrying capacity is insufficient, product deformation resetting is poor and the like exist in the adopted common watchband contact fingers and spring contact fingers.

The transformer cable connector in the market has the problems of high installation process requirement and poor operation reliability, and therefore, a single-core cable connector is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a single core cable connector to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a single core cable connector, includes cable core, sleeve pipe and PVC sticky tape, cable core outside parcel has the cable protection cover, and cable protection cover outside parcel has the epoxy connecting pipe, the sleeve pipe wraps up in the epoxy connecting pipe outside, and the inside socket that is provided with of sleeve pipe lower extreme, the laminating has the copper braided wire in the cable protection cover outside, and the sleeve pipe periphery is connected with waterproof area, the PVC sticky tape bonds in the waterproof area outside, and PVC sticky tape inboard is connected with the constant force spring, the cable protection cover middle part outside is provided with the stress tube, and the stress tube outside is connected with the pyrocondensation sleeve pipe, the cable core outside is connected with the combined type bolt.

Furthermore, the sleeve and the socket are cast and molded into a whole, and the sleeve is in a circular truncated cone shape.

Furthermore, the outer specific connecting surface of the waterproof belt is attached to the inner wall connecting surface of the PVC adhesive tape, and the PVC adhesive tape is elastically connected with the constant force spring.

Furthermore, the sleeve penetrates through the interior of the heat-shrinkable sleeve, and the heat-shrinkable sleeve is in a shape like a Chinese character 'tu'.

Further, the cable core runs through inside the combined type bolt, and the cable core is the buckle with the combined type bolt and is connected.

Furthermore, the cable protection sleeve comprises a main insulating sleeve, a semi-conductive sheet and a copper shielding belt, the semi-conductive sheet wraps the outer side of the main insulating sleeve, and the copper shielding belt is attached to the outer side of the semi-conductive sheet.

The utility model provides a single core cable connector possesses following beneficial effect: the single-core cable connector realizes quick installation between a cable and a transformer, simultaneously realizes the functions of full sealing, full insulation, full shielding, touch and the like, can run in water for a long time, and can be widely applied to underground transformer products;

the single-core cable connector is provided with the epoxy resin connecting pipe, the whole epoxy resin connecting pipe is tightly matched with the sleeve, and a 4-degree guide angle is arranged in the epoxy resin connecting pipe, so that the cable can be better guided to be smoothly installed, the field intensity can be better controlled, and the cable can withstand the voltage of 20kV through the 800A heavy current;

the single-core cable connector is provided with the PVC adhesive tape, the whole joint of the single-core cable connector is sealed in a multi-layer manner through the waterproof tape, the PVC adhesive tape and the heat-shrinkable sleeve, so that the whole connector can achieve the effects of full sealing, full insulation, full shielding and touch;

this single core cable connector is provided with combined type bolt, combined type bolt and cable core carry out the crimping in an organic whole through hydraulic tong, it is used for inserting the socket in the sleeve pipe, accomplish the electric energy conduction, can realize many times plug, it has stainless steel skeleton to correspond in it, conduction electric power position tension is bigger, bearing capacity is stronger, its current-carrying capacity compares with the specification, improved 2-3 times, and the cooperation tolerance size requirement also reduces relatively, the installation is more convenient and reliable, and compare with the conventionality, the combined type can reach many times plug indeformable, make the maintenance of product more convenient, long service life.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the connection structure between the cable core and the composite plug of the present invention;

fig. 3 is the utility model discloses cable core and cable protection cover connection structure schematic diagram.

In the figure: 1. a cable core; 2. a cable protective sheath; 201. a main insulating sleeve; 202. a semi-conductive sheet; 203. a copper shielding tape; 3. a sleeve; 4. an epoxy resin connecting pipe; 5. copper braided wire; 6. a waterproof tape; 7. PVC adhesive tape; 8. heat-shrinkable tubing; 9. a constant force spring; 10. a stress tube; 11. a composite bolt; 12. a socket is provided.

Detailed Description

As shown in fig. 1 and 2, a single core cable connector, including cable core 1, sleeve pipe 3 and PVC

sticky tape

7, 1 outside parcel of cable core has cable protection cover 2, sleeve pipe 3 is the outside of integration parcel in cable protection cover 2 with socket 12 casting moulding, and the 1 outside of cable core is connected with epoxy connecting pipe 4, epoxy connecting pipe 4 and sleeve pipe 3 are mutually supported, and epoxy connecting pipe 4 is circular truncated cone form, inside is equipped with 4 direction angles, be convenient for better guide cable installs smoothly, can be better field intensity control, accessible 800A heavy current, withstand voltage 20 kV.

As shown in fig. 2 and fig. 3, the copper braided wire 5 is attached to the outer side of the cable protection sleeve 2, the waterproof belt 6 is connected to the outer side of the sleeve 3, the PVC tape 7 is bonded to the outer side of the waterproof belt 6, the constant force spring 9 is connected to the inner side of the PVC tape 7, the outer specific connection surface of the waterproof belt 6 is attached to the inner wall connection surface of the PVC tape 7, the PVC tape 7 is elastically connected to the constant force spring 9, the whole single-core cable connector is sealed in multiple layers through the waterproof belt 6, the PVC tape 7 and the heat-shrinkable sleeve 8, so that the whole cable connector can achieve the effects of full sealing, full insulation, full shielding and touch, the constant force spring 9 wound in a circle layer by layer is attached to the inner side of the PVC tape 7 to be further tightened and strengthened to connect the end, the high-voltage cable input end is correspondingly stressed tube 10 is particularly adopted, the electric field intensity of the high-voltage input end is effectively relieved, and the electrical performance requirement is met. The cable protection cover 2 middle part outside is provided with stress tube 10, and the stress tube 10 outside is connected with heat shrinkage bush 8, and sleeve 3 runs through inside heat shrinkage bush 8, and heat shrinkage bush 8 is "protruding" word form. The outside of cable core 1 is connected with combined type bolt 11, cable core 1 runs through inside combined type bolt 11, and cable core 1 is the buckle with combined type bolt 11 and is connected, combined type bolt 11 and cable core 1 carry out the crimping in an organic whole through hydraulic tong, and plug socket 12 can realize plug many times, combined type bolt 11 is for having the stainless steel skeleton in the whole, conduction power position tension is bigger, it is stronger to bear the weight of the thing ability, its current-carrying capacity is compared with the specification, 2-3 times have been improved, and the cooperation tolerance dimensional requirement also reduces relatively, it is more convenient and reliable to install, and compare with the conventionality, combined type bolt 11 can reach many times plug indeformable, make the maintenance of product more convenient, and long service life. The cable protection sleeve 2 comprises a main insulating sleeve 201, a semi-conductive sheet 202 and a copper shielding belt 203, the semi-conductive sheet 202 wraps the outer side of the main insulating sleeve 201, and the copper shielding belt 203 is attached to the outer side of the semi-conductive sheet 202.

In conclusion, when the single-core cable connector is used, firstly, the whole cable is straightened, the tail end of the cable is sawn to be even, the cable is stripped, 705mm of a cable sleeve stripping the single-core cable is taken downwards from the top end of the cable, then 40mm upwards from a fracture of the cable sleeve is stripped, an excess copper shielding tape 203 is stripped, 20mm upwards from the fracture of the copper shielding tape 203 is stripped, an excess semi-conducting strip 202 is stripped, 650mm upwards from the fracture of a semi-conducting strip 202 is stripped, an excess cable main insulating sleeve 201 is stripped, a cable core 1 is exposed, meanwhile, a double-layer PVC adhesive tape 7 is wrapped on the cable core 1 for temporary protection, the main insulating sleeve 201 of the cable is prevented from being scratched when the semi-conducting strip 202 is stripped, the end part of the copper shielding tape 203 is wrapped by the PVC adhesive tape 7 to prevent from being scattered, the chamfer angle of the end part of the main insulating sleeve 201 is 2 x 45 degrees, the joint of the semi-conducting strip 202 and the main insulating sleeve 201 is ground into a slope, so that a boss and a pit are avoided, and the boss and the main insulating sleeve 201 is smoothly transited to the main insulating sleeve 201, then, the surface of a main insulating sleeve 201 of the cable is respectively polished by No. 360 and No. 400 abrasive belts, the main insulating sleeve 201 above the tail end of an outer semi-conductive sheet 202 needs to be polished finely to avoid attaching semi-conductive dust and the like, then a copper braided wire 5 is tightly hooped at the root of the copper shielding belt 203 by a constant force spring 9 and a PVC adhesive tape 7 is wound to tightly hoop the constant force spring 9, the surfaces of the main insulating sleeve 201, the semi-conductive sheet 202 and the constant force spring 9 are wiped by cleaning paper, the cleaning paper is probed from an insulating port to the semi-conductive sheet 202, back and forth probing is forbidden to ensure that stains on the surfaces of the main insulating sleeve 201 and the semi-conductive sheet 202 are cleaned up, a heat-shrinkable sleeve 8 is sleeved at a position 15-20mm away from the constant force spring 9, a 20mm copper shielding belt 203 is lapped and is heated and fixed from bottom to top by small fire, a layer of silicone grease is uniformly smeared on the surface of the main insulating sleeve 201, multi-waste heat shrinkable insulation is cut off and aligned with the end part 201 of the main insulating sleeve of the cable, sleeving a composite bolt 11 into a cable core 1, selecting a pressing block with a corresponding cross section, crimping the composite bolt 11 by using hydraulic pliers, sleeving a heat-shrinkable sleeve 8, heating and shrinking the composite bolt 11 from the crimping position to the end part of the heat-shrinkable sleeve 8 for fixation, then respectively sleeving heat-shrinkable colored tubes according to phases, heating and shrinking the same for fixation, marking the composite bolt 11 to a position 300mm away from the composite bolt 11, inserting a terminal and the composite bolt 11 into a socket 12 in the sleeve 3 to enable the terminal mark to be level with the port of the sleeve 3, enabling a cable protective sleeve 2 to penetrate into an epoxy resin connecting tube 4 and then to be tightly matched along a guide angle of the sleeve 3 to prevent the terminal from shaking, wrapping waterproof strips 6 along the port of the sleeve 3 and the cable position for several times, plugging the waterproof strips 6 into the port of the sleeve 3 to prevent water from seeping into the sleeve 3, and then wrapping 2-3 layers on the surface of the waterproof strips 6 by using PVC adhesive tapes 7, covering the cable, then sleeving the heat-shrinkable sleeve 8 at the root part of the port of the sleeve 3, uniformly heating the heat-shrinkable sleeve 8 from bottom to top, fixing the heat-shrinkable sleeve 8 on the sleeve 3 and the terminal, and after the terminal is installed, installing one or two special cable clamps within the range of 300mm to 500mm upwards from the port of the sleeve 3 to keep the section of the cable as a vertical straight line segment and avoid the displacement of the cable, thus completing the use process of the whole single-core cable connector.

Claims

1. A single-core cable connector comprises a cable core (1), a sleeve (3) and a PVC adhesive tape (7), it is characterized in that the outer side of the cable core (1) is wrapped with a cable protective sleeve (2), the outer side of the cable protective sleeve (2) is wrapped with an epoxy resin connecting pipe (4), the sleeve (3) is wrapped on the outer side of the epoxy resin connecting pipe (4), a socket (12) is arranged in the lower end of the sleeve (3), a copper braided wire (5) is attached to the outer side of the cable protective sleeve (2), and the periphery of the sleeve (3) is connected with a waterproof belt (6), the PVC adhesive tape (7) is adhered to the outer side of the waterproof belt (6), the inner side of the PVC adhesive tape (7) is connected with a constant force spring (9), the outer side of the middle part of the cable protective sleeve (2) is provided with a stress tube (10), and the outer side of the stress tube (10) is connected with a heat-shrinkable sleeve (8), and the outer side of the cable core (1) is connected with a composite bolt (11).

2. A single core cable connector as claimed in claim 1, wherein said sleeve (3) is integrally cast with said socket (12) and said sleeve (3) is frustoconical.

3. A single core cable connector according to claim 1 wherein the waterproof tape (6) outer surface connecting surface and the PVC tape (7) inner surface connecting surface are attached to each other and the PVC tape (7) is elastically connected to the constant force spring (9).

4. A single core cable connector as claimed in claim 1, wherein said sleeve (3) is inserted inside a heat shrink sleeve (8), and wherein the heat shrink sleeve (8) is "embossed".

5. A single core cable connector as claimed in claim 1, wherein said cable core (1) is inserted inside said composite plug (11) and said cable core (1) is snap-fitted to said composite plug (11).

6. The single-core cable connector according to claim 1, wherein the cable protective sleeve (2) comprises a main insulating sleeve (201), a semi-conductive sheet (202) and a copper shielding tape (203), the semi-conductive sheet (202) wraps the outer side of the main insulating sleeve (201), and the copper shielding tape (203) is attached to the outer side of the semi-conductive sheet (202).