CN220475393U

CN220475393U - Protection device for high-voltage cable intermediate head

Info

Publication number: CN220475393U
Application number: CN202322150383.8U
Authority: CN
Inventors: 张家志
Original assignee: Wuhan Zhihe Electromechanical Technology Co ltd
Current assignee: Wuhan Zhihe Electromechanical Technology Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-02-09
Anticipated expiration: 2033-08-10

Abstract

The utility model relates to the technical field of high-voltage cables, in particular to a protection device for a middle joint of a high-voltage cable, which comprises an upper shell, wherein a cable is arranged at the bottom of the upper shell, a lower shell with the number of two is arranged at the joint of the upper shell and the cable, a movable block is movably connected at the bottom of the cable, a linkage plate is fixedly connected at the top of the movable block, a plurality of first magnets are respectively and fixedly connected at the two sides of the linkage plate, a plurality of mounting strips with the number of two are fixedly connected at the bottom of the upper shell, a plurality of mounting grooves with the number of two are formed at the top of the cable, a plurality of connecting pieces are fixedly connected at the inner wall of each mounting groove, and a plurality of pressure relief valves are fixedly connected at the top of the upper shell.

Description

Protection device for high-voltage cable intermediate head

Technical Field

The utility model relates to the technical field of high-voltage cables, in particular to a protection device for a middle joint of a high-voltage cable.

Background

The high voltage cable is an important component of the power system, and the main purpose is to transmit energy, and the operating voltage of the high voltage cable can be 10kV-500kV. Because the high-voltage cable is limited by transportation conditions, the high-voltage cable can only be manufactured into a reel form with the length of about 800-1000 meters, and when the high-voltage cable is laid for a long length, the cable middle joint is needed to be used for connection

The protection device of the existing high-voltage cable middle connector is designed in a closed box type, the fault range is sealed inside the box body by the closed box type design, and damage to external circuits and equipment is avoided. But this closed box closure nature is high to be unfavorable for the heat dissipation when the cable operation, there is higher potential safety hazard, current protector carries out fixed connection through modes such as bolt simultaneously, and this kind of connected mode is stronger, but when cable joint need maintain, it is comparatively troublesome to dismantle protector.

Disclosure of Invention

The utility model aims to provide a protection device for a middle joint of a high-voltage cable, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a protector of high tension cable intermediate head, includes the casing, the cable is installed to the bottom of going up the casing, go up the junction of casing and cable and install the lower casing that is two in quantity, the bottom swing joint of cable has the movable block, the top fixedly connected with interlock board of movable block, the both sides of interlock board are a plurality of first magnetite of fixedly connected with quantity respectively, the bottom fixedly connected with of going up the casing is the installation strip of two in quantity, the mounting groove of two in quantity has been seted up at the top of cable, the inner wall fixedly connected with connecting piece of a plurality of in quantity of mounting groove, the both sides of going up casing and cable are the heat abstractor of three in quantity respectively fixedly connected with, the top fixedly connected with relief valve of a plurality of in quantity of going up the casing.

Preferably, the heat dissipating device comprises a cold row, a heat dissipating bin with the number of two is arranged on one side of the cold row, a plurality of radiating fins with the number of two are fixedly connected to an inner cavity of the heat dissipating bin, heat conducting pipes with the number of two are fixedly connected to two at two ends of the cold row respectively, one ends of the heat conducting pipes penetrate through the plurality of radiating fins, the other ends of the heat conducting pipes are located inside the upper shell and the cable, an air box is fixedly connected to the inner wall of the heat dissipating bin, a stepping motor is fixedly connected to the inner wall of the air box, a driving shaft is movably connected to one side of the stepping motor, and a turbofan is fixedly connected to one end of the driving shaft.

Preferably, the connecting piece comprises a sleeve, an installing and detaching block is movably sleeved at one end of an inner cavity of the sleeve, a spring is fixedly connected at the other end of the inner cavity of the sleeve, a second magnet is fixedly connected at one end of the installing and detaching block, and corresponding surfaces of the first magnet and the second magnet are mutually attracted.

Preferably, a plurality of embedded holes are formed in one side of the mounting strip, the number of the embedded holes is the same as that of the connecting pieces, and the inner cavities of the embedded holes are mutually matched with one end of the mounting and dismounting block.

Preferably, the outer side of one end of the mounting and dismounting block is fixedly connected with an anti-falling ring, an anti-falling groove is formed in the inner wall of the sleeve, and the outer side of the anti-falling ring is in transition fit with the inner wall of the anti-falling groove.

Preferably, the back of bellows has seted up a plurality of ventilation openings of quantity, the quantity of ventilation opening is the same with the fin and with the fin one-to-one.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the movable block is moved by external force, so that the connection between the mounting bar and the mounting groove is disconnected, and the upper shell and the cable can be detached;

2. according to the utility model, the heat dissipation device is arranged, so that when the lower shell body transmits current, the temperature of the upper shell body and the temperature of the cable are raised, and the heat dissipation device continuously and rapidly dissipates the heat in the upper shell body and the cable, so that the upper shell body and the cable are always in a constant temperature state, the heat dissipation effect of the protection device is improved, the heat at the cable joint can be rapidly dissipated, and the dangerous situations such as fire explosion and the like caused by overhigh temperature are avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the overall structure of the present utility model;

FIG. 3 is an enlarged view of area A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a schematic view of the overall structure of the connector of FIG. 3 according to the present utility model;

FIG. 5 is a schematic diagram of the overall structure of the heat dissipating device of FIG. 2 according to the present utility model;

in the figure: 1. an upper housing; 2. a lower housing; 3. a cable; 4. a movable block; 5. a connecting piece; 6. a heat sink; 7. a pressure release valve; 11. a mounting bar; 12. an insertion hole; 31. a mounting groove; 41. a linkage plate; 42. a first magnet; 51. a sleeve; 52. installing and dismantling blocks; 53. a spring; 54. a second magnet; 55. anti-slip ring; 56. an anti-drop groove; 61. cold row; 62. a heat dissipation bin; 63. a heat sink; 64. a heat conduction pipe; 65. a wind box; 66. a stepping motor; 67. a drive shaft; 68. a turbo fan; 651. and (5) a ventilation opening.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Several embodiments of the utility model are presented in the figures. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, the present utility model provides a technical solution:

the utility model provides a protector of high tension cable intermediate head, including last casing 1, go up the bottom of casing 1 and install cable 3, go up the junction of casing 1 and cable 3 and install lower casing 2 that is two in quantity, the bottom swing joint of cable 3 has movable block 4, the top fixedly connected with interlock board 41 of movable block 4, the both sides of interlock board 41 fixedly connected with a plurality of first magnetite 42 respectively, the bottom fixedly connected with of last casing 1 is the installation strip 11 of two in quantity, the mounting groove 31 of two in quantity has been seted up at the top of cable 3, the inner wall fixedly connected with connecting piece 5 of a plurality of in quantity of mounting groove 31, the both sides of going up casing 1 and cable 3 are fixedly connected with heat abstractor 6 that is three in quantity respectively, the top fixedly connected with relief valve 7 of a plurality of in quantity of last casing 1.

In this embodiment, referring to fig. 5, the heat dissipating device 6 includes a cold row 61, a heat dissipating bin 62 with two numbers is provided on one side of the cold row 61, a plurality of heat dissipating fins 63 are fixedly connected to an inner cavity of the heat dissipating bin 62, two heat conducting pipes 64 with two numbers are fixedly connected to two ends of the cold row 61, one end of each heat conducting pipe 64 penetrates through the plurality of heat dissipating fins 63, the other end of each heat conducting pipe 64 is located inside the upper housing 1 and the cable 3, an air box 65 is fixedly connected to an inner wall of the heat dissipating bin 62, a stepper motor 66 is fixedly connected to an inner wall of the air box 65, a driving shaft 67 is movably connected to one side of the stepper motor 66, and a turbofan 68 is fixedly connected to one end of the driving shaft 67.

In this embodiment, referring to fig. 4, the connecting piece 5 includes a sleeve 51, an assembling and disassembling block 52 is movably sleeved at one end of an inner cavity of the sleeve 51, a spring 53 is fixedly connected at the other end of the inner cavity of the sleeve 51, a second magnet 54 is fixedly connected at one end of the assembling and disassembling block 52, and the corresponding surfaces of the first magnet 42 and the second magnet 54 attract each other, so that when the first magnet 42 moves to the right rear of the second magnet 54, the second magnet 54 drives the assembling and disassembling block 52 to move backwards, the assembling and disassembling block 52 moves backwards to squeeze the spring 53 to deform, when the first magnet 42 leaves the right rear of the second magnet 54, the attractive force disappears, and the spring 53 loses pressure, thereby jacking the assembling and disassembling block 52 to move forwards to return to the original position.

In this embodiment, referring to fig. 3, a plurality of embedded holes 12 are formed on one side of the mounting bar 11, the number of the embedded holes 12 is the same as that of the connectors 5, and the inner cavities of the embedded holes 12 are mutually matched with one end of the mounting/dismounting block 52, so that the mounting bar 11 can be fixed in the inner cavity of the mounting groove 31 after the mounting/dismounting block 52 enters the inner cavity of the embedded hole 12, and the upper housing 1 and the cable 3 can be fixed together to protect the lower housing 2.

In this embodiment, referring to fig. 4, an anti-drop ring 55 is fixedly connected to the outer side of one end of the mounting/dismounting block 52, an anti-drop groove 56 is provided on the inner wall of the sleeve 51, and the outer side of the anti-drop ring 55 is in transition fit with the inner wall of the anti-drop groove 56, so that when the mounting/dismounting block 52 moves back and forth along the inner wall of the sleeve 51, the anti-drop ring 55 also moves back and forth along the inner wall of the anti-drop groove 56, thereby preventing the mounting/dismounting block 52 from being separated from the inner wall of the sleeve 51.

In this embodiment, referring to fig. 5, a plurality of ventilation openings 651 are provided on the back surface of the bellows 65, and the number of the ventilation openings 651 is the same as that of the cooling fins 63 and corresponds to the cooling fins 63 one by one, so that when the turbofan 68 rotates, air can be blown to the surface of the cooling fins 63 uniformly through the ventilation openings 651, and the cooling fins 63 can radiate heat efficiently.

The working principle of the utility model is as follows:

in the utility model, through arranging the movable block 4, the movable block 4 is moved by external force, the linkage plate 41 moves in the upper shell 1, the position of the first magnet 42 changes when the linkage plate 41 moves, the first magnet 42 is moved to be in one-to-one correspondence with the right rear of the connecting piece 5, as the corresponding surfaces of the first magnet 42 and the second magnet 54 are mutually attracted, the second magnet 54 moves backwards, the mounting and dismounting block 52 is driven by the backward movement of the second magnet 54 to move backwards along the inner cavity of the sleeve 51, when the mounting and dismounting block 52 moves backwards, the mounting and dismounting block 52 is separated from the inner cavity of the embedding hole 12, so that the connection between the mounting strip 11 and the mounting groove 31 is disconnected, the upper shell 1 and the cable 3 can be detached and separated, the joint of the lower shell 2 is convenient to maintain, and when the mounting strip 11 is inserted into the mounting groove 31, the mounting strip 11 is extruded and the mounting and dismounting block 52 is enabled to move backwards, the mounting strip 11 is enabled to deform by the backward movement of the mounting and dismounting block 52, and the mounting and dismounting block 52 is enabled to move backwards along with the movement of the mounting strip 11, the forward direction of the mounting and dismounting block 52 is enabled to be restored to be in the front of the front shell 12, and the front side of the mounting and the front shell 2 is enabled to be fixed to be in the front of the front shell 2, and the front of the front-mounted shell 12 when the mounting and the front-mounted block is enabled to be fixed and the front-mounted shell 52 is enabled to be lost;

in the second step, in the utility model, the heat dissipating device 6 is arranged, the heat dissipating device 6 comprises the heat conducting tube 64, when the lower shell 2 carries out power transmission, heat is dissipated, so that the temperature of the inner cavity of the upper shell 1 and the inner cavity of the cable 3 are increased, one end of the heat conducting tube 64 is inserted into the inner parts of the upper shell 1 and the inner part of the cable 3, the heat in the upper shell 1 and the inner part of the cable 3 is absorbed and conducted to the surface of the radiating fin 63 through the good heat conductivity of the heat conducting tube 64, the convection area of the air is increased through the plurality of radiating fins 63, the driving shaft 67 is rotated at a high speed through the stepping motor 66, the turbofan 68 is driven to rotate at a high speed through the driving shaft 67, and the fan blades of the turbofan 68 have a certain inclination angle, when the air passes through, the air on one side of the fan blades runs straight line, and the air on the other side of the fan blades runs along with the oblique line, under the condition of the same time, the air flow speed of the oblique line is inevitably higher than the air flow speed of the straight line running air, so that the air pressure on both sides of the straight line runs continuously, the air side is formed, the air flow is, the convection is increased, the convection is carried out with the air 63 is increased, the heat is carried out to the heat is rapidly, the heat is dissipated to the inner side of the radiating fin 63, and the heat is prevented from the heat dissipating heat is dissipated to the inner side 1, and the heat is dissipated to the inner side 3, and the heat is kept at a high temperature, and the temperature is high temperature, and is easy to be cooled, and is easy.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a protector of high tension cable intermediate head, includes casing (1), its characterized in that: the cable (3) is installed to the bottom of going up casing (1), lower casing (2) that quantity is two are installed to the junction of going up casing (1) and cable (3), the bottom swing joint of cable (3) has movable block (4), the top fixedly connected with interlock board (41) of movable block (4), the both sides of interlock board (41) are fixedly connected with first magnetite (42) of a plurality of numbers respectively, the bottom fixedly connected with of going up casing (1) is installing strip (11) of two numbers, installing groove (31) of two numbers have been seted up at the top of cable (3), the inner wall fixedly connected with connecting piece (5) of a plurality of numbers of installing groove (31), the both sides of going up casing (1) and cable (3) are heat abstractor (6) of three numbers respectively, the top fixedly connected with of going up casing (1) is a plurality of relief valves (7) of a plurality of numbers.

2. The protective device for an intermediate joint of a high voltage cable according to claim 1, wherein: the heat dissipation device comprises a cold row (61), a heat dissipation bin (62) with the number of two is arranged on one side of the cold row (61), a plurality of radiating fins (63) with the number of two are fixedly connected to an inner cavity of the heat dissipation bin (62), two heat conduction pipes (64) with the number of two are fixedly connected to two at two ends of the cold row (61), one end of each heat conduction pipe (64) penetrates through the plurality of radiating fins (63), the other end of each heat conduction pipe (64) is located inside an upper shell (1) and a cable (3), an air box (65) is fixedly connected to the inner wall of the heat dissipation bin (62), a stepping motor (66) is fixedly connected to the inner side of the air box (65), a driving shaft (67) is movably connected to one side of the stepping motor (66), and a turbofan (68) is fixedly connected to one end of the driving shaft (67).

3. The protective device for an intermediate joint of a high voltage cable according to claim 1, wherein: the connecting piece (5) comprises a sleeve (51), an assembling and disassembling block (52) is movably sleeved at one end of an inner cavity of the sleeve (51), a spring (53) is fixedly connected at the other end of the inner cavity of the sleeve (51), a second magnet (54) is fixedly connected at one end of the assembling and disassembling block (52), and the corresponding surfaces of the first magnet (42) and the second magnet (54) are mutually attracted.

4. The protective device for an intermediate joint of a high voltage cable according to claim 1, wherein: one side of the mounting strip (11) is provided with a plurality of embedded holes (12), the number of the embedded holes (12) is the same as that of the connecting pieces (5), and the inner cavities of the embedded holes (12) are mutually matched with one end of the mounting and dismounting block (52).

5. A protective device for an intermediate connector of a high voltage cable according to claim 3, wherein: the anti-drop ring (55) is fixedly connected to the outer side of one end of the mounting and dismounting block (52), an anti-drop groove (56) is formed in the inner wall of the sleeve (51), and the outer side of the anti-drop ring (55) is in transition fit with the inner wall of the anti-drop groove (56).

6. The protective device for an intermediate joint of a high voltage cable according to claim 2, wherein: the back of bellows (65) has seted up a plurality of vent (651), the quantity of vent (651) is the same with fin (63) and with fin (63) one-to-one.