CN216312085U

CN216312085U - Non-fusion connected cable joint with cooling function

Info

Publication number: CN216312085U
Application number: CN202120784136.1U
Authority: CN
Inventors: 林培斌; 刘效洲; 马沁柠
Original assignee: Guangdong Anheng Power Technology Co ltd
Current assignee: Guangdong Anheng Power Technology Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-04-15
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a non-fusion-connected cable joint with a cooling function, which comprises a copper sleeve, an insulating layer, an outer jacket, a condenser, an oil tank and a circulating oil pump, wherein a first cable core and a second cable core to be connected are installed in the copper sleeve, the insulating layer and the outer jacket are sequentially wrapped on the outer layer of the copper sleeve, the outer jacket consists of an upper jacket and a lower jacket, mutually communicated cooling cavities are formed in the upper jacket and the lower jacket, a cooling oil outlet communicated with the cooling cavities is formed in the upper side of the upper jacket, a cooling oil inlet communicated with the cooling cavities is formed in the lower side of the lower jacket, and the cooling oil inlet is sequentially connected with the condenser, the circulating oil pump, the oil tank and the cooling oil outlet through pipelines. The cable joint is simple in design structure and convenient to install, special hot melting equipment is not needed, the working efficiency is improved, the outer sheath with the heat dissipation function, the condenser, the oil tank and the circulating oil pump are arranged, and the safety of the cable joint is improved.

Description

Non-fusion connected cable joint with cooling function

Technical Field

The utility model relates to the technical field of power grid construction, in particular to a non-fusion-connection cable joint with a cooling function.

Background

At present, a cable sheath is stripped, and then the joint of two cables is fixed by adopting hot melting welding. The cable joint connected in this way is easy to have welding spots or unevenness, the cable is easy to overload after long-time high-pressure use, and even the cable middle joint is heated and exploded to cause large-scale accidents.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a non-fusion-connection cable joint structure with a cooling function, which can be conveniently installed, has the cooling function and avoids large accidents caused by heating and explosion of a cable intermediate joint.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a cable joint with a cooling function and non-fusion connection comprises a copper sleeve, an insulating layer, an outer jacket, a condenser, an oil tank and a circulating oil pump, wherein a first cable core and a second cable core to be connected are installed in the copper sleeve, the first cable core and the second cable core are positioned and fixed through a plurality of rivets, the insulating layer and the outer jacket are sequentially wrapped on the outer layer of the copper sleeve, the outer jacket comprises an upper jacket and a lower jacket, a clamping space for clamping the insulating layer is formed when the upper jacket and the lower jacket are in butt joint, cooling cavities which are communicated with each other are formed inside the upper jacket and the lower jacket, a cooling oil outlet communicated with the cooling cavities is formed in the upper side of the upper jacket, a cooling oil inlet communicated with the cooling cavities is formed in the lower side of the lower jacket, and the cooling oil inlet is sequentially connected with the condenser through a pipeline, Circulating oil pump, oil tank and coolant oil export.

Preferentially, the surface of copper sheathing still is provided with temperature sensor, carries out real time monitoring to the operating temperature of copper sheathing (being cable joint promptly), guarantees cable safety, and it also can be connected with circulating oil pump signal, realizes automatic cooling.

Preferably, the two ends of the copper sleeve are fixed with the two cable cores to be connected by brazing respectively.

Preferably, the copper sleeve can also adopt a silver sleeve or an aluminum sleeve and the like according to the requirement of electric conductivity.

Preferably, the rivet is made of a metal having excellent conductive properties, such as copper, silver, or aluminum.

Preferably, the upper and lower jackets are detachably connected by screws.

Preferably, the surfaces of the upper jacket and the lower jacket can be provided with a plurality of radiating fins, wherein the distance between every two adjacent radiating fins is 3-6 mm.

The utility model has the beneficial effects that: the cable joint structure of non-melting connection of this design adopts the copper sheathing to connect two cable joint, inserts two cable cores of treating to connect during the installation towards the copper sheathing both ends, and rethread rivet location is brazed at the copper sheathing both ends at last and is fixed, and simple to operate need not to borrow special hot melt and equips, has improved work efficiency to set up oversheath and condenser, oil tank and the circulating oil pump that have the heat dissipation function, improve cable joint's security.

Drawings

FIG. 1 is an axial cut-away schematic view of the structure of the present invention;

fig. 2 is a schematic view of the structure of the present invention in radial section.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, a non-fusion-connected cable joint with a cooling function comprises a copper bush 2, an insulating layer 3, an outer jacket 4, a condenser 53, an oil tank 51 and a circulating oil pump 52, wherein two cable cores to be connected (respectively a cable core 11 and a cable core 12 marked in the figure) are installed in the copper bush 2, the copper bush 2 and the two cable cores to be connected are positioned and fixed by a plurality of rivets 21, the insulating layer 3 and the outer jacket 4 are sequentially wrapped on the outer layer of the copper bush 2, the outer jacket 4 is composed of an upper jacket 41 and a lower jacket 42, the upper jacket 41 and the lower jacket 42 are detachably connected by screws 43, a clamping space for clamping the insulating layer 3 is formed when the upper jacket 41 and the lower jacket 42 are butted, cooling cavities which are communicated with each other are formed inside the upper jacket 41 and the lower jacket 42, the upper side of the upper jacket 41 is provided with a cooling oil outlet 401 communicated with the cooling cavity, the upper side of the lower jacket 42 is provided with a cooling oil inlet 402 communicated with the cooling cavity, the cooling oil inlet 402 is sequentially connected with the condenser 53, the circulating oil pump 52, the oil tank 51 and the cooling oil outlet 401 through pipelines to form a circulating cooling system, cooling oil enters the cooling cavity in the outer jacket 4 from the cooling oil inlet 402 at the lower side of the outer jacket 4 for heat exchange, a cable joint is cooled, and then the cooling oil circularly flows back to the oil tank 51 from the cooling oil outlet 401 at the upper side, so that the cooling oil can stay in the outer jacket 4 more, and the cooling effect is improved.

Preferentially, the outer surface of the copper sleeve 2 is also provided with a temperature sensor 6 for monitoring the working temperature of the copper sleeve (namely a cable joint) in real time, so as to ensure the safety of the cable, and the temperature sensor can also be in signal connection with the circulating oil pump 52 to realize automatic cooling.

Preferentially, two ends of the copper sleeve 2 are respectively fixed with two cable cores to be connected by brazing, and the area of a brazed part 22 is not less than 1cm²。

Preferably, the copper sleeve 2 may also be a silver sleeve or an aluminum sleeve, etc. according to the requirement of the electrical conductivity.

Preferably, the rivet 21 is made of a metal having excellent conductive properties, such as copper, silver, or aluminum.

Preferably, the surface of the outer sheath 4 may further be provided with a plurality of cooling fins 44, and the distance between adjacent cooling fins 44 is 3-6 mm, preferably 5 mm.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made in the claims and the description of the present invention are within the scope of the present invention.

Claims

1. The non-melting connected cable joint with the cooling function is characterized by comprising a copper sleeve, an insulating layer, an outer jacket, a condenser, an oil tank and a circulating oil pump, wherein a first cable core and a second cable core to be connected are installed in the copper sleeve, the first cable core and the second cable core are positioned and fixed through a plurality of rivets, the insulating layer and the outer jacket are sequentially wrapped on the outer layer of the copper sleeve, the outer jacket comprises an upper jacket and a lower jacket, a clamping space for clamping the insulating layer is formed when the upper jacket and the lower jacket are in butt joint, cooling cavities which are communicated with each other are formed inside the upper jacket and the lower jacket, a cooling oil outlet communicated with the cooling cavities is formed in the upper side of the upper jacket, a cooling oil inlet communicated with the cooling cavities is formed in the lower side of the lower jacket, and the cooling oil inlet is sequentially connected with the condenser and the condenser through a pipeline, Circulating oil pump, oil tank and coolant oil export.

2. A non-fusion spliced cable joint with cooling capability as claimed in claim 1 wherein the outer surface of the copper jacket is further provided with a temperature sensor.

3. The non-fusion spliced cable joint with cooling function as claimed in claim 1, wherein both ends of the copper sheath are respectively fixed to two cable cores to be spliced by brazing.

4. The non-fusion spliced cable joint with cooling function as claimed in claim 1, wherein the copper sheath is a silver sheath or an aluminum sheath.

5. A non-fusion spliced cable joint with cooling capability as claimed in claim 1 wherein the rivet is made of copper or silver or aluminum.

6. The non-fusion spliced cable joint having a cooling function as claimed in claim 1, wherein the upper and lower jackets are detachably connected by a screw.

7. The non-fusion spliced cable joint having a cooling function as claimed in claim 1 or 6, wherein the surfaces of the upper and lower jackets are provided with a plurality of heat radiating fins.

8. The non-fusion spliced cable joint having a cooling function as claimed in claim 7, wherein the interval between the adjacent heat radiating fins is 3 to 6 mm.

9. A non-fusion spliced cable joint having a cooling function as claimed in claim 7, wherein the adjacent heat radiating fins are spaced apart by 5 mm.