CN220381996U

CN220381996U - Insulation mounting structure of C-GIS breaker for wind power equipment

Info

Publication number: CN220381996U
Application number: CN202321840418.4U
Authority: CN
Inventors: 卞卫华; 刘栋梁; 马天柱; 姜海飞
Original assignee: Suzhou Lambda Electric Co ltd
Current assignee: Suzhou Lambda Electric Co ltd
Priority date: 2023-07-13
Filing date: 2023-07-13
Publication date: 2024-01-23
Anticipated expiration: 2033-07-13

Abstract

The utility model discloses an insulation installation structure of a C-GIS breaker for wind power equipment, which comprises the following components: the sealing plate, the two insulating plates and the three primary loop systems are arranged along the vertical direction, and the three primary loop systems are arranged between the two insulating plates side by side; an insulating support cover plate is horizontally arranged between the two insulating plates close to the top, two ends of the insulating support cover plate extend to be level with two ends of the two insulating plates, first support rods are fixed at the bottoms of two ends of the insulating support cover plate, the two first support rods are fixedly connected with the two insulating plates, one first support rod is fixedly connected with the sealing plate, and the other first support rod is fixedly connected with an external air box; insulation structures for increasing creepage distance are arranged on the two insulation plates. The insulation installation structure of the C-GIS breaker for the wind power equipment can greatly improve the installation strength, increase the creepage distance and strengthen the insulation.

Description

Insulation mounting structure of C-GIS breaker for wind power equipment

Technical Field

The utility model relates to the technical field of C-GIS (carbon-gas insulated switchgear) breakers, in particular to an insulating installation structure of a C-GIS breaker for wind power equipment.

Background

GIS refers to gas-insulated closed switch equipment, and is generally sealed in a space by adopting vacuum circuit breakers, isolating switches and other equipment to be insulated by SF6 gas. The SF6 air chamber of the C-GIS has lower air pressure, which is a fraction of GIS, and other parts except the air chamber where the load switch is located are fully filled with SF6 and are insulated by air.

The C-GIS breaker is used as main flow switch control equipment of the current wind power equipment, a three-phase primary loop system and a breaker operating mechanism of the C-GIS breaker reside on two sides of a sealing aluminum plate, and the sealing aluminum plate is used for sealing and fixing with an air box and sealing the three-phase primary loop system in an air chamber of the air box. The three-phase primary loop system is installed between the two insulating plates, the metal support is fixedly arranged at the top ends of the two insulating plates to strengthen the frame structure, and the acting force of a transmission mechanism for linking the primary loop system is born. The structural form mainly has the following defects: 1. because the product is longer, the product can decline when being put into the gas tank due to weak strength at the rear end position; 2. the inner space of the gas tank is narrow, the distance between the copper bar in the gas tank and the metal bracket is relatively short after the copper bar is connected with the primary loop system, and the creepage distance is relatively short, so that the insulating property of the product is affected; 3. the installation strength is not enough, and the conditions such as loosening and deformation are easy to generate under the impact force generated by the rapid brake separation of the brake separation spring, so that the service life of the product is reduced. Accordingly, there is a need for improvements in the art that overcome the shortcomings of the prior art.

Disclosure of Invention

The utility model aims to solve the problem of providing an insulating installation structure of a C-GIS breaker for wind power equipment, so as to overcome the defects of weak installation strength and low insulating property of the conventional breaker.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a method comprising: the device comprises a sealing plate, two insulating plates and three primary loop systems, wherein the two insulating plates and the three primary loop systems are arranged along the vertical direction, the two insulating plates are relatively fixed on the inner side of the sealing plate, and the three primary loop systems are arranged between the two insulating plates side by side; an insulating support cover plate is horizontally arranged between the two insulating plates close to the top, two ends of the insulating support cover plate extend to be level with two ends of the two insulating plates, first support rods are fixed at the bottoms of two ends of the insulating support cover plate, the two first support rods are fixedly connected with the two insulating plates, one of the first support rods is fixedly connected with the sealing plate, and the other first support rod is fixedly connected with an external air box; and the two insulating plates are provided with insulating structures for increasing the creepage distance.

As a further improvement of the utility model, at least one second supporting rod is also fixed between the two insulating plates, and the second supporting rod is positioned above one end of the insulating supporting cover plate and is fixedly connected with the sealing plate.

As a further improvement of the utility model, the side surfaces of the insulating support cover plates, which are attached to the inner sides of the two insulating plates, are respectively and integrally extended upwards to form a fixed edge, a plurality of nuts are arranged and pre-buried on the fixed edges, and the outer sides of the insulating plates are locked with the nuts in a one-to-one correspondence manner by using bolts.

As a further improvement of the utility model, a fixed square rod is fixed on the inner side of one end of each insulating plate close to the sealing plate, and the insulating plates are fixedly connected with the sealing plates through the fixed square rods; one first supporting rod fixedly connected with the sealing plate is abutted against the tops of the two fixed square rods.

As a further improvement of the utility model, the primary loop system comprises a vacuum arc-extinguishing chamber, a movable support and a static support, wherein a conductive piece is fixed on the movable end of the vacuum arc-extinguishing chamber, the movable support is sleeved on the conductive piece in a sliding manner and is fixedly connected with two insulating plates, and two ends of the movable support penetrate through the two insulating plates to horizontally protrude outwards and are used for being connected with copper bars in an external gas tank; the static support is arranged at the static end of the vacuum arc-extinguishing chamber and is fixedly connected with the two insulating plates.

As a further improvement of the present utility model, the insulating structure includes a plurality of umbrella skirts and a plurality of through holes provided on both inner and outer sides of the insulating plate.

As a further improvement of the utility model, the umbrella skirt and the through holes are distributed between the movable support and the static support, between two adjacent movable supports and between a transmission mechanism connected to the primary loop system and the movable supports.

As a further improvement of the utility model, an insulating guide sleeve is fixed on the movable support, and a protruding part arranged on the movable end of the vacuum arc-extinguishing chamber is slidingly matched in the insulating guide sleeve.

As a further improvement of the utility model, a round static end conductive block is arranged on the static end of the vacuum arc-extinguishing chamber, cutting grooves are formed on two sides of the static end conductive block, a positioning groove is formed on the static support, a positioning block is arranged in the positioning groove, and the static end conductive block is inserted into the positioning groove and is matched with the cutting grooves to perform circumferential positioning through the positioning block.

The beneficial effects of the utility model are as follows:

1. the utility model provides an insulating installation structure of a C-GIS breaker for wind power equipment, which is characterized in that the installation strength is improved by installing an insulating support cover plate between two insulating plates, two first support rods at the bottoms of two ends of the insulating support cover plate are respectively fixed in a sealing plate and an external air box, the support strength of a frame formed by the two support rods at the front end and the rear end is greatly improved, the phenomenon of declination of the rear end can not occur after the frame is installed in the air box, the structure is more reliable, and the assembly is simpler; in addition, the insulating support cover plate is an insulator, and the insulating structures are arranged on the two insulating plates, so that the electric field design is optimized, the creepage distance is increased, and the insulation is enhanced; meanwhile, the mould pressing structure sizes of the insulating plate and the insulating support cover plate are well controlled, and the consistency of products can be ensured;

2. the umbrella skirts and the through holes are arranged on the inner side and the outer side of the insulating plate, so that the insulating distance between the conductive parts can be increased, the pressure-resistant level is improved, and meanwhile, the strength of the insulating plate is also improved;

3. according to the utility model, the insulating guide sleeve is fixed at the bottom of the movable support, and the protruding part arranged on the movable end of the vacuum arc-extinguishing chamber is slidably matched in the insulating guide sleeve, so that the structural arrangement is more reasonable, the movable support does not need to be made into a special-shaped structure, and the guide can be completed through the insulating guide sleeve made of nylon materials;

4. the vacuum arc-extinguishing chamber and the static support are provided with the positioning structure, the vacuum arc-extinguishing chamber and the static support cannot rotate relatively during assembly, installation is more convenient, meanwhile, products can be arranged compacter on the basis of guaranteeing current-carrying capacity, the position of the vacuum arc-extinguishing chamber can be adjusted downwards due to the design of the positioning groove on the static support during assembly of the vacuum arc-extinguishing chamber, and accordingly a space is reserved for lengthening an insulating pull rod connected to the movable end of the vacuum arc-extinguishing chamber, and insulation is enhanced.

Drawings

FIG. 1 is a perspective view of an insulated mounting structure of a C-GIS breaker for wind power equipment according to the present utility model;

FIG. 2 is a perspective view showing an insulation board of the insulation mounting structure of the C-GIS breaker for wind power equipment in the utility model after being disassembled;

FIG. 3 is a perspective view of the insulation mounting structure of the C-GIS breaker for wind power equipment of the present utility model with the sealing plate and primary loop system removed;

FIG. 4 is a cross-sectional view of an insulated mounting structure of a C-GIS breaker for wind power equipment of the present utility model;

FIG. 5 is a perspective view of a C-GIS breaker for wind power equipment in which one of the static brackets is disassembled by the insulating mounting structure;

fig. 6 is a perspective view of a static bracket in the present utility model.

The following description is made with reference to the accompanying drawings:

1. a sealing plate; 2. an insulating plate; 201. umbrella skirt; 202. a through hole; 3. a primary loop system; 301. a vacuum arc extinguishing chamber; 3011. a boss; 3012. a static end conductive block; 3013. cutting a groove; 302. a movable support; 303. a static support; 3031. a positioning groove; 3032. a positioning block; 304. a conductive member; 305. an insulating guide sleeve; 4. an insulating support cover plate; 401. fixing the edges; 5. a first support bar; 6. a second support bar; 7. and fixing the square rod.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, 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 some embodiments of the present utility model, but not all embodiments.

The following detailed description of embodiments of the utility model, provided in the accompanying drawings, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that the terms "upper, lower, left, right, front, rear, outer, middle, inner, far, near, high, low" and the like are used for the convenience of description and simplification of the description, based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship conventionally understood by those skilled in the art. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 6, the present utility model provides an insulation mounting structure of a C-GIS circuit breaker for wind power equipment, comprising: the sealing plate 1, two insulating plates 2 and three primary loop systems 3, wherein the sealing plate 1 is specifically an aluminum plate and is used for being connected to an external air box in a sealing mode. The two insulating plates 2 and the three primary loop systems 3 are arranged along the vertical direction, and the two insulating plates 2 are relatively fixed on the inner side of the sealing plate 1. Specifically, two insulating plates 2 are close to the inboard fixed square rod 7 of one end of closing plate 1, and insulating plate 2 passes through this fixed square rod 7 and closing plate 1 fixed connection. Three primary circuit systems 3 are installed side by side in sequence from front to back between two insulating plates 2.

Wherein, the insulating board 2 adopts SMC material doped glass fiber compression molding, and it has advantages such as intensity is high, insulating properties are excellent.

Referring to fig. 2 and 3, an insulating support cover plate 4 is horizontally installed between two insulating plates 2 near the top, and the insulating support cover plate 4 is made of the same material as the insulating plates 2. The front and rear ends of the insulating support cover plate 4 extend to be flush with the two ends of the two insulating plates 2 respectively, and the bottoms of the two ends of the insulating support cover plate 4 are fixed with first support rods 5. Screw holes are formed in two ends of the two first support rods 5, and the two first support rods 5 are fixedly connected with the two insulating plates 2 through bolts. In addition, the middle parts of the two first support rods 5 are also provided with fixing holes, and one first support rod 5 positioned at the front end (namely close to the sealing plate 1) is fixedly connected with the sealing plate 1 by using a bolt and is abutted against the tops of the two fixed square rods 7; the other first support rod 5 is used for being fixed with the internal structure of the external air box through bolts. From this, improve installation strength through insulating support apron 4 between two insulation boards 2, and two first bracing pieces 5 of insulating support apron 4 both ends bottom are fixed respectively in closing plate 1 and outside gas tank, and the frame that its constitutes is at the front and back both ends support strength improvement greatly, can not appear the rear end phenomenon of declining after loading into the gas tank, and the structure is more reliable, and the assembly is also simpler moreover.

In addition, the insulating support cover plate 4 is an insulator, and the insulating structures arranged on the two insulating plates 2 are added, so that the electric field design is optimized, the creepage distance is increased, and the insulation is enhanced; simultaneously, the mould pressing structure size of the insulating plate 2 and the insulating support cover plate 4 is also well controlled, and the consistency of products can be ensured.

Referring to fig. 3, the insulating support cover plate 4 is attached to the inner side surfaces of the two insulating plates 2, and extends upwards to form a fixing edge 401 integrally, a plurality of nuts (not shown in the figure) are arranged on the fixing edge 401 in a pre-buried manner, and the outer sides of the insulating plates 2 are locked and fixed in a one-to-one correspondence manner by using bolts and nuts. According to the utility model, the nuts are embedded in the die of the insulating support cover plate 4, so that the nuts are integrally formed on the insulating support cover plate 4, and the assembly efficiency and the assembly consistency can be improved.

In order to strengthen the strength of the stressed positions of the two insulating plates 2, the utility model is also fixed with a second supporting rod 6 between the two insulating plates 2, the structure of the second supporting rod 6 is the same as that of the first supporting rod 5, the second supporting rod 6 is arranged above the front end of the insulating supporting cover plate 4, and the second supporting rod 6 is fixedly connected with the sealing plate 1.

Further, the primary circuit system 3 includes a vacuum arc-extinguishing chamber 301, a movable support 302 and a static support 303, wherein a conductive member 304 is fixed on the movable end of the vacuum arc-extinguishing chamber 301, the movable support 302 is slidably sleeved on the conductive member 304 through a spring contact finger and fixedly connected with the two insulating plates 2, and two ends of the movable support 302 horizontally protrude outwards through the two insulating plates 2 for being connected with copper bars in an external gas tank. The static bracket 303 is fixedly arranged at the static end of the vacuum arc extinguishing chamber 301 and is also used for being connected with copper bars in an external air box. Screw holes are formed at both ends of the static bracket 303, and both ends thereof are abutted against the inner sides of the two insulating plates 2 and fixed by bolts.

The insulating structure comprises a plurality of sheds 201 and a plurality of through holes 202 which are arranged on the inner side and the outer side of the insulating plate 2, wherein the sheds 201 and the through holes 202 are distributed between a movable bracket 302 and a static bracket 303, between two adjacent movable brackets 302 and between a transmission mechanism connected with a primary loop system 3 and the movable brackets 302, so that the insulating distance between conductive parts is increased, the pressure-resistant level is improved, and meanwhile, the strength of the insulating plate 2 is also improved due to the arrangement of the sheds 201.

Referring to fig. 4, an insulation guide sleeve 305 is fixed at the bottom of the movable support 302, a protruding portion 3011 arranged at the movable end of the vacuum arc-extinguishing chamber 301 is slidably arranged in the insulation guide sleeve 305, and the arrangement is more reasonable, so that the movable support 302 does not need to be made into a special-shaped structure, and the guide can be completed through the insulation guide sleeve 305 made of nylon material.

Referring to fig. 5 and 6, a circular stationary-end conductive block 3012 is provided on a stationary end of the vacuum interrupter 301, and the stationary-end conductive block 3012 is provided with cutting grooves 3013 on both sides thereof. The static support 303 is provided with the positioning groove 3031 matched with the static end conductive block 3012, two positioning blocks 3032 are arranged on two sides of the peripheral wall of the positioning groove 3031, the static end conductive block 3012 is inserted into the positioning groove 3031 and is matched with the cutting groove 3013 to perform circumferential positioning, the static support 303 and the vacuum arc-extinguishing chamber 301 cannot rotate relatively during assembly, the static support 303 and the vacuum arc-extinguishing chamber 301 are more convenient to install, meanwhile, the product arrangement is more compact on the basis of ensuring the current-carrying capacity, the position of the vacuum arc-extinguishing chamber 301 can be adjusted downwards due to the design of the positioning groove 3031 on the static support 303, and therefore a good space is reserved for lengthening an insulating pull rod connected to the movable end of the vacuum arc-extinguishing chamber 301, and insulation is enhanced.

In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The foregoing description is only of a preferred embodiment of the utility model, which can be practiced in many other ways than as described herein, so that the utility model is not limited to the specific implementations disclosed above. While the foregoing disclosure has been described with reference to certain embodiments, it will be understood by those skilled in the art that various changes and modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model without departing from the technical solution of the present utility model still falls within the scope of the technical solution of the present utility model.

Claims

1. An insulating mounting structure of a C-GIS circuit breaker for wind power equipment, comprising: the device comprises a sealing plate (1), two insulating plates (2) and three primary loop systems (3), wherein the two insulating plates (2) and the three primary loop systems (3) are arranged along the vertical direction, the two insulating plates (2) are relatively fixed on the inner side of the sealing plate (1), and the three primary loop systems (3) are arranged between the two insulating plates (2) side by side; the method is characterized in that: an insulating support cover plate (4) is horizontally arranged between the two insulating plates (2) near the top position, two ends of the insulating support cover plate (4) extend to be parallel and level with two ends of the two insulating plates (2), first support rods (5) are fixed at bottoms of two ends of the insulating support cover plate (4), the two first support rods (5) are fixedly connected with the two insulating plates (2), one of the first support rods (5) is fixedly connected with the sealing plate (1), and the other first support rod (5) is fixedly connected with an external air box; and the two insulating plates (2) are provided with insulating structures for increasing the creepage distance.

2. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 1, wherein: at least one second supporting rod (6) is further fixed between the two insulating plates (2), and the second supporting rod (6) is positioned above one end of the insulating supporting cover plate (4) and is fixedly connected with the sealing plate (1).

3. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 1, wherein: the insulating support cover plates (4) are attached to the two side faces of the inner sides of the insulating plates (2), fixing edges (401) extend upwards integrally, a plurality of nuts are arranged on the fixing edges (401), and the outer sides of the insulating plates (2) are locked in one-to-one correspondence with the nuts through bolts.

4. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 1, wherein: a fixed square rod (7) is fixed on the inner side of one end, close to the sealing plate (1), of each insulating plate (2), and the insulating plates (2) are fixedly connected with the sealing plate (1) through the fixed square rods (7); one first supporting rod (5) fixedly connected with the sealing plate (1) is abutted against the tops of the two fixed square rods (7).

5. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 1, wherein: the primary loop system (3) comprises a vacuum arc-extinguishing chamber (301), a movable support (302) and a static support (303), wherein a conductive piece (304) is fixed on the movable end of the vacuum arc-extinguishing chamber (301), the movable support (302) is sleeved on the conductive piece (304) in a sliding manner and is fixedly connected with two insulating plates (2), and two ends of the movable support (302) penetrate through the two insulating plates (2) to horizontally protrude outwards and are used for being connected with copper bars in an external air box; the static support (303) is arranged at the static end of the vacuum arc-extinguishing chamber (301) and is fixedly connected with the two insulating plates (2).

6. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 5, wherein: the insulation structure comprises a plurality of umbrella skirts (201) and a plurality of through holes (202) which are arranged on the inner side and the outer side of the insulation plate (2).

7. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 6, wherein: the umbrella skirt (201) and the through holes (202) are distributed between the movable brackets (302) and the static brackets (303), between two adjacent movable brackets (302) and between a transmission mechanism connected to the primary loop system (3) and the movable brackets (302).

8. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 5, wherein: an insulating guide sleeve (305) is fixed on the movable support (302), and a protruding portion (3011) arranged on the movable end of the vacuum arc extinguishing chamber (301) is slidably matched in the insulating guide sleeve (305).

9. The insulating mounting structure of a C-GIS circuit breaker for wind power equipment according to claim 5, wherein: be provided with circular shape quiet end conducting block (3012) on the quiet end of vacuum interrupter (301), just quiet end conducting block (3012) are equipped with cutting groove (3013) on its both sides, be provided with positioning groove (3031) on quiet support (303), be equipped with locating piece (3032) in positioning groove (3031), quiet end conducting block (3012) inserts in positioning groove (3031), and through locating piece (3032) with cutting groove (3013) cooperation carries out circumferential location.