CN216250211U

CN216250211U - Explosion-proof type arrester core body

Info

Publication number: CN216250211U
Application number: CN202122794663.3U
Authority: CN
Inventors: 华明川; 王养军
Original assignee: Anhui Yitian Sensitive Ceramic Technology Co ltd
Current assignee: Anhui Yitian Sensitive Ceramic Technology Co ltd
Priority date: 2021-11-13
Filing date: 2021-11-13
Publication date: 2022-04-08
Anticipated expiration: 2031-11-13

Abstract

The utility model discloses an explosion-proof arrester core body, which comprises an insulating shell, wherein connecting electrodes are fixedly arranged at the top end and the bottom end in the insulating shell, through holes are formed in the middles of the two connecting electrodes, a core rod is connected between the two through holes in a sliding manner, a plurality of resistor discs which are arranged at equal intervals are fixedly arranged on two sides of the core rod, polyimide adhesive tapes are fixedly arranged on the surfaces of the resistor discs, and an insulating rod is fixedly arranged between two adjacent polyimide adhesive tapes on each side, so that the explosion-proof arrester core body has the beneficial effects that: the energy of the core rod is increased to generate high-pressure gas inside the insulating shell, and the gas pushes the core rod to move downwards, so that the pressure borne by the core body in the lightning stroke is reduced, and the service life of the core body of the lightning arrester is prolonged; high-pressure gas makes two slide bars slide down at two slide opening inner walls, and two gaskets and two baffles move down, and outside high-pressure gas flowed this core through two explosion-proof openings, the effectual explosion-proof performance who improves this core.

Description

Explosion-proof type arrester core body

Technical Field

The utility model relates to a core body, in particular to an explosion-proof arrester core body, and belongs to the technical field of arresters.

Background

The lightning arrester core body is an electric device which is used for protecting electrical equipment from being damaged by high transient overvoltage and limiting follow current time and normally limiting follow current amplitude, and is exposed outside for a long time in the working process of protecting the electrical equipment, so that the interior of the lightning arrester core body is easily affected with damp, the service life of the lightning arrester core body is seriously shortened, and the lightning arrester core body is easily aged after being used for a long time, so that the explosion phenomenon appears in the core body.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an explosion-proof arrester core body, which aims to solve the problems that the arrester core body proposed in the background technology is easily affected with damp and is easy to explode after being used for a long time.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an explosion-proof type arrester core, includes the insulating casing, the inside top of insulating casing and the inside bottom are all fixed and are equipped with connecting electrode, two the through-hole has all been seted up at connecting electrode's middle part, two sliding connection has the plug between the through-hole, the resistance card that the both sides of plug were all fixed and are equipped with the equidistance of a plurality of setting, a plurality of the surface of resistance card is all fixed and is equipped with the polyimide sticky tape, and each side is two adjacent all fixed being equipped with the insulating rod between the polyimide sticky tape, the top of plug is equipped with the resistance to compression subassembly, the inner wall of insulating casing is equipped with dampproofing subassembly.

As a preferred technical scheme of the utility model, the compression-resistant assembly comprises two sliding holes, two sliding rods, two clamping plates, two clamping grooves, two return springs and two gaskets, wherein the two sliding holes are respectively formed in the middle of the top end and the middle of the bottom end of the core rod, the inner walls of the two sliding holes are respectively connected with the sliding rods in a sliding manner, one ends of the two sliding rods are respectively fixedly arranged on the inner walls of the two through holes, the two clamping plates are respectively fixedly arranged at the top end and the bottom end of the core rod, the two clamping grooves are respectively formed in the inner walls of the middle portions of the two connecting electrodes, the two clamping plates are respectively connected with the inner walls of the two clamping grooves in a clamping manner, the two return springs are respectively fixedly arranged on two sides of the bottom end of one of the two connecting electrodes, and the bottom ends of the two return springs are respectively and fixedly connected with the gaskets.

As a preferable technical scheme of the utility model, the moisture-proof component comprises a composite sleeve, a moisture-proof cavity and a neutral desiccant, the composite sleeve is fixedly arranged on the inner wall of the insulating shell, the moisture-proof cavity is formed in the inner wall of the composite sleeve, and the neutral desiccant is filled in the moisture-proof cavity.

According to a preferable technical scheme of the utility model, the top of one side of the composite sleeve is provided with a feeding hole, one side of the feeding hole is fixedly connected with a feeding pipe, the bottom of the other side of the composite sleeve is provided with a discharging hole, one side of the discharging hole is fixedly connected with a discharging pipe, and one end of the feeding pipe and one end of the discharging pipe are both in threaded connection with sealing covers.

As a preferred technical scheme, the bottom ends of the two gaskets are fixedly provided with the baffle plates, the bottom ends of the two baffle plates are fixedly connected with the top end of the core rod, the tops of two sides of the insulating shell are respectively provided with an explosion-proof through hole, and the middle parts of the two explosion-proof through holes are respectively fixedly provided with the ventilation film.

As a preferred technical solution of the present invention, the surface of the composite sleeve is coated with a silicone coating.

As a preferable technical scheme of the utility model, the inside of the feeding pipe and the inside of the discharging pipe are both fixedly provided with filter screens.

Compared with the prior art, the utility model has the beneficial effects that: according to the explosion-proof arrester core body, high-pressure gas is generated in the insulating shell by increasing energy after the core rod is heated, the core rod is pushed by the high-pressure gas to move downwards, the pressure on the core rod when the core body is struck by lightning is reduced by the two return springs, and the service life of the arrester core body is prolonged; the high-pressure gas enables the two sliding rods to slide downwards on the inner walls of the two sliding holes, the two gaskets and the two baffles move downwards, and the high-pressure gas flows out of the core body through the two anti-explosion through holes, so that the anti-explosion performance of the core body of the lightning arrester is effectively improved; the staff of being convenient for gets material or pay-off to the neutral drier of dampproofing intracavity portion.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A of FIG. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the utility model at B of fig. 2.

In the figure: 1. an insulating case; 2. connecting the electrodes; 3. a through hole; 4. a core rod; 5. resistance cards; 6. a polyimide tape; 7. an insulating rod; 8. a compression resistant assembly; 9. a moisture barrier component; 10. a feed port; 11. a feed pipe; 12. a discharge hole; 13. a discharge pipe; 14. a sealing cover; 15. a baffle plate; 16. an explosion-proof port; 17. a ventilation membrane; 18. filtering with a screen; 81. a slide hole; 82. a slide bar; 83. clamping a plate; 84. a card slot; 85. a return spring; 88. a gasket; 91. a composite sleeve; 92. a moisture-proof cavity; 93. a neutral desiccant.

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.

Referring to fig. 1-4, the utility model provides an explosion-proof arrester core, which comprises an insulating shell 1, wherein connecting electrodes 2 are fixedly arranged at the top end and the bottom end inside the insulating shell 1, through holes 3 are formed in the middle parts of the two connecting electrodes 2, a core rod 4 is connected between the two through holes 3 in a sliding manner, a plurality of resistance discs 5 which are arranged at equal intervals are fixedly arranged on two sides of the core rod 4, polyimide tapes 6 are fixedly arranged on the surfaces of the resistance discs 5, an insulating rod 7 is fixedly arranged between two adjacent polyimide tapes 6 on each side, a compression-resistant assembly 8 is arranged at the top end of the core rod 4, and a moisture-proof assembly 9 is arranged on the inner wall of the insulating shell 1.

Preferably, the compression-resistant assembly 8 comprises two sliding holes 81, two sliding rods 82, two clamping plates 83, two clamping grooves 84, two return springs 85 and two gaskets 88, wherein the two sliding holes 81 are respectively arranged in the middle of the top end and the middle of the bottom end of the core rod 4, the inner walls of the two sliding holes 81 are respectively connected with the sliding rods 82 in a sliding manner, one ends of the two sliding rods 82 are respectively fixedly arranged on the inner walls of the two through holes 3, the two clamping plates 83 are respectively fixedly arranged on the top end and the bottom end of the core rod 4, the two clamping grooves 84 are respectively arranged on the inner walls of the middle portions of the two connecting electrodes 2, the two clamping plates 83 are respectively connected with the inner walls of the two clamping grooves 84 in a clamping manner, the two return springs 85 are respectively fixedly arranged on two sides of the bottom end of one of the connecting electrode 2, the gaskets 88 are respectively fixedly connected with the bottom ends of the two return springs 85, when the core rod 4 is struck by lightning, the heat, the energy is increased to generate high-pressure gas inside the insulating shell 1, the core rod 4 is pushed by high-pressure gas to move downwards, so that the pressure borne by the core rod 4 when the core body is struck by lightning is reduced, and the service life of the core body of the lightning arrester is prolonged; the moisture-proof assembly 9 comprises a composite sleeve 91, a moisture-proof cavity 92 and a neutral desiccant 93, the composite sleeve 91 is fixedly arranged on the inner wall of the insulating shell 1, the moisture-proof cavity 92 is formed in the inner wall of the composite sleeve 91, the neutral desiccant 93 is filled in the moisture-proof cavity 92, and the moisture-proof performance of the core body is effectively improved through the neutral desiccant 93 filled in the moisture-proof cavity 92; the top of one side of the composite sleeve 91 is provided with a feeding hole 10, one side of the feeding hole 10 is fixedly connected with a feeding pipe 11, the bottom of the other side of the composite sleeve 91 is provided with a discharging hole 12, one side of the discharging hole 12 is fixedly connected with a discharging pipe 13, one end of the feeding pipe 11 and one end of the discharging pipe 13 are both in threaded connection with sealing covers 14, and a worker can conveniently take or feed the neutral desiccant 93 in the moisture-proof cavity 92 through the two sealing covers 14; the bottom ends of the two gaskets 88 are respectively fixedly provided with a baffle 15, the bottom ends of the two baffles 15 are respectively fixedly connected with the top end of the core rod 4, the top parts of the two sides of the insulating shell 1 are respectively provided with an explosion-proof through hole 16, the middle parts of the two explosion-proof through holes 16 are respectively and fixedly provided with a ventilation film 17, when the core body is struck by lightning, high-pressure gas enables the two sliding rods 82 to slide downwards on the inner walls of the two sliding holes 81, the two gaskets 88 and the two baffles 15 move downwards, and the high-pressure gas flows out of the core body through the two explosion-proof through holes 16, so that the explosion-proof performance of the lightning arrester core body is effectively improved; the surface of the composite sleeve 91 is coated with the organic silicon coating, so that the strength of the composite sleeve 91 is effectively improved through the flame-retardant insulating property of the organic silicon; both the inside of the feeding pipe 11 and the inside of the discharging pipe 13 are fixedly provided with the strainers 18, and impurities and dust can be effectively prevented from entering the inside of the moisture-proof cavity 92 through the strainers 18 in the process of feeding the neutral desiccant 93.

When the lightning arrester core is used, firstly, the lightning arrester core is arranged in a lightning arrester shell, then the lightning arrester is fixed with electrical equipment and then is grounded, in the normal operation process of the lightning arrester core, the sealing cover 14 on one side of the inner side of the feeding pipe 11 is rotated, the neutral desiccant 93 is injected into the moisture-proof cavity 92 from the feeding pipe 11, the two reset springs 85 are reset to enable the clamping plate 83 at the top end of the core rod 4 to be clamped with the inner wall of the adjacent clamping groove 84, the two baffle plates 15 respectively shield the two explosion-proof through holes 16, when the lightning arrester is struck by lightning, the energy is increased after the core rod 4 generates heat to enable the inner part of the insulating shell 1 to generate high-pressure gas, the high-pressure gas pushes the core rod 4 to move downwards, the two sliding rods 82 respectively slide on the inner walls of the two sliding holes 81, the core rod 4 moves to drive the two reset springs 85 to stretch, and simultaneously, the core rod 4 drives the two baffle plates 15 and the two gaskets 88 to move downwards, the inside high-pressure gas of this core is through two ventilation membrane 17 back by the outside of two explosion-proof openings 16 discharge insulation can 1, can further improve the explosion-proof performance of this arrester core through a plurality of polyimide sticky tape 6, and a plurality of insulator spindle 7 has improved the intensity of the inside plug 4 of core.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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 an explosion-proof type arrester core, includes insulating casing (1), its characterized in that, insulating casing (1) inside top and inside bottom are all fixed and are equipped with connecting electrode (2), two through-hole (3), two have all been seted up at the middle part of connecting electrode (2) sliding connection has plug (4) between through-hole (3), resistance card (5) that the both sides of plug (4) were all fixed and are equipped with a plurality of equidistance setting, a plurality of the surface of resistance card (5) is all fixed and is equipped with polyimide sticky tape (6), and each side is two adjacent all fixed be equipped with insulating rod (7) between polyimide sticky tape (6), the top of plug (4) is equipped with resistance to compression subassembly (8), the inner wall of insulating casing (1) is equipped with dampproofing subassembly (9).

2. An explosion proof type arrester core body according to claim 1, characterized in that: the compression-resistant assembly (8) comprises two sliding holes (81), two sliding rods (82), two clamping plates (83), two clamping grooves (84), two reset springs (85) and two gaskets (88), wherein the two sliding holes (81) are respectively arranged in the middle of the top end and the middle of the bottom end of the core rod (4), the inner walls of the two sliding holes (81) are respectively connected with the sliding rods (82) in a sliding manner, one ends of the two sliding rods (82) are respectively and fixedly arranged on the inner walls of the two through holes (3), the two clamping plates (83) are respectively and fixedly arranged at the top end and the bottom end of the core rod (4), the two clamping grooves (84) are respectively arranged on the inner walls in the middle of the two connecting electrodes (2), the two clamping plates (83) are respectively clamped and connected with the inner walls of the two clamping grooves (84), and the two reset springs (85) are respectively and fixedly arranged on two sides of the bottom end of one connecting electrode (2), the bottom ends of the two return springs (85) are fixedly connected with gaskets (88).

3. An explosion proof type arrester core body according to claim 1, characterized in that: the moisture-proof assembly (9) comprises a composite sleeve (91), a moisture-proof cavity (92) and a neutral desiccant (93), wherein the composite sleeve (91) is fixedly arranged on the inner wall of the insulating shell (1), the moisture-proof cavity (92) is formed in the inner wall of the composite sleeve (91), and the neutral desiccant (93) is filled in the moisture-proof cavity (92).

4. An explosion proof arrester core body according to claim 3, characterized in that: feed port (10) have been seted up at the top of composite sleeve (91) one side, one side fixedly connected with inlet pipe (11) of feed port (10), discharge opening (12) have been seted up to the bottom of composite sleeve (91) opposite side, one side fixedly connected with discharging pipe (13) of discharge opening (12), the equal threaded connection of one end of inlet pipe (11) and the one end of discharging pipe (13) has sealed lid (14).

5. An explosion-proof arrester core body according to claim 2, characterized in that: two the bottom of gasket (88) is all fixed and is equipped with baffle (15), two the bottom of baffle (15) all with the top fixed connection of plug (4), explosion-proof opening (16), two have all been seted up at the top of insulating casing (1) both sides the middle part of explosion-proof opening (16) is all fixed and is equipped with ventilation membrane (17).

6. An explosion proof arrester core body according to claim 3, characterized in that: the surface of the composite sleeve (91) is coated with a silicone coating.

7. An explosion proof arrester core body according to claim 4, characterized in that: the filter screen (18) is fixedly arranged in the feeding pipe (11) and the discharging pipe (13).