CN213459561U

CN213459561U - Outdoor high-voltage three-station vacuum circuit breaker

Info

Publication number: CN213459561U
Application number: CN202022851446.9U
Authority: CN
Inventors: 朱千忠
Original assignee: Zhejiang Yinfu Electric Appliance Co ltd
Current assignee: Zhejiang Yinfu Electric Appliance Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-06-15
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to an outdoor high-voltage three-station vacuum circuit breaker, which comprises an earthing switch, an isolating switch and a solid-sealed pole, a vacuum arc extinguish chamber is arranged in the embedded pole and comprises a shell, a movable conducting rod and a static conducting rod, one end of the movable conducting rod extends out of the shell, a moving contact is arranged at the other end, a static contact is arranged below the moving contact and is connected with the static conducting rod which is connected with the shell, a contact component is arranged between the moving contact and the static contact, the contact component comprises a fixed seat and a conductive diaphragm which are positioned on the side wall of the shell, the fixed seat comprises an upper fixed seat and a lower fixed seat, a guide post is arranged between the upper fixed seat and the lower fixed seat, the conductive diaphragm is fixed on the guide post, and the guide post is provided with springs which are positioned on two sides of the conductive diaphragm. The utility model discloses avoid the direct contact between the sound contact, reduced the wear rate, improved life.

Description

Outdoor high-voltage three-station vacuum circuit breaker

Technical Field

The utility model relates to a circuit breaker equipment technical field, concretely relates to three station vacuum circuit breakers of outdoor high pressure.

Background

The outdoor high-voltage three-station vacuum circuit breaker is provided with an embedded pole, a vacuum arc extinguish chamber in the embedded pole belongs to a passive electric vacuum device, is matched with a switching mechanism to form a vacuum switching device, and is widely applied to power transmission and distribution systems of industrial and mining enterprises, urban and rural power grids, electrified railways and the like.

The vacuum arc-extinguishing chamber technology is developed for over thirty years, the market share is improved year by year, more and more manufacturers are provided, and the market competition is very strong. Particularly, since the time of the coming into the world, the manufacturing industry of foreign vacuum arc-extinguishing chambers successively enters the Chinese market in a sole-propriety and joint-propriety manner, so that the competition is more intense, the market demands advanced miniaturized vacuum arc-extinguishing chambers more and more urgently, and users need products with small external size, small occupied area, low cost and excellent performance.

At present, a moving contact and a fixed contact are in direct mutual contact, so that more heat and fire fox are generated, and the temperature inside an arc extinguish chamber is high.

Disclosure of Invention

An object of the utility model is to provide an outdoor high pressure three-station vacuum circuit breaker changes the contact mode of moving contact and static contact, reduces thermal production.

In order to achieve the above object, the utility model provides a following technical scheme: an outdoor high-voltage three-station vacuum circuit breaker comprises a grounding switch, an isolating switch and an embedded pole, and is characterized in that a vacuum arc extinguish chamber is arranged in the embedded pole, the vacuum arc extinguish chamber comprises a shell, a movable conducting rod and a static conducting rod, one end of the movable conducting rod extends out of the shell, the other end of the movable conducting rod is provided with a movable contact, a static contact is arranged below the movable contact, the static contact is connected with the static conducting rod, the static conducting rod is connected with the shell, a contact assembly is arranged between the movable contact and the static contact, the contact assembly comprises a fixed seat and a conductive membrane, the fixed seat comprises an upper fixed seat and a lower fixed seat, a guide post is arranged between the upper fixed seat and the lower fixed seat, the conductive membrane is fixed on the guide post, and a spring is arranged on the guide post, the springs are located on both sides of the conductive diaphragm.

The utility model discloses further set up, the top of going up the fixing base is provided with the shielding layer, the below of fixing base is provided with the shielding layer down.

The utility model discloses further set up, its characterized in that the outside of moving the conducting rod is provided with slide bearing.

The utility model discloses further set up, the casing is made for ceramic material.

The beneficial effects of the utility model, the utility model discloses set up the contact assembly between moving contact and static contact, with the conductive diaphragm in the contact assembly as conductive medium, after the moving contact touched a side of conductive diaphragm, continue to promote conductive diaphragm and until conductive diaphragm and static contact, avoided the direct contact between the sound contact, reduced wear rate, improved life, conductive diaphragm is sheet structure in addition, and the heat dissipation is fast, has reduced the temperature in the arc extinguish chamber.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a vacuum interrupter according to an embodiment of the present invention.

Reference numeral, 10, a ground switch; 20. an isolating switch; 30. solid-sealing the pole; 40. a vacuum arc-extinguishing chamber; 50. a housing; 60. a movable conductive rod; 70. a static conductive rod; 80. a moving contact; 90. static contact; 100. an upper fixed seat; 110. a lower fixed seat; 120. a guide post; 130. a spring; 140. a conductive diaphragm; 150. a sliding bearing; 160. a shielding layer;

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1-2, the utility model discloses a following technical scheme, an outdoor high pressure three-station vacuum circuit breaker, include earthing switch 10, isolator 20 and seal utmost point post 30 admittedly, it is provided with vacuum interrupter 40 in the utmost point post 30 to seal admittedly, vacuum interrupter 40 includes casing 50, moves conducting rod 60, quiet conducting rod 70, the one end that moves conducting rod 60 stretches out casing 50 and sets up, and one end is provided with moving contact 80 in addition, casing 50 makes for ceramic material.

The contact structure comprises a moving contact 80, a fixed contact 90, a fixed conductive rod 70, a shell 50, a contact assembly, a guide post 120, a conductive membrane 140, a spring 130 and a sliding bearing 150, wherein the fixed contact 90 is arranged below the moving contact 80, the fixed contact 90 is connected with the fixed conductive rod 70, the fixed conductive rod 70 is connected with the shell 50, the contact assembly is arranged between the moving contact 80 and the fixed contact 90 and comprises a fixed seat and a conductive membrane 140, the fixed seat is arranged on the side wall of the shell 50 and comprises an upper fixed seat 100 and a lower fixed seat 110, the guide post 120 is arranged between the upper fixed seat 100 and the lower fixed seat 110, the conductive membrane 140 is fixed on the guide post.

The utility model discloses set up the contact assembly between moving contact 80 and static contact 90, the electrically conductive diaphragm 140 in the contact assembly is as electrically conductive medium, after moving contact 80 touched an electrically conductive diaphragm 140 side, continue to promote electrically conductive diaphragm 140 and contact until electrically conductive diaphragm 140 and static contact 90, direct contact between the sound contact 90 has been avoided, the wear rate has been reduced, and the service life is prolonged, electrically conductive diaphragm 140 is the lamellar structure in addition, the heat dissipation is fast, the temperature in the arc extinguish chamber has been reduced, and corresponding spring 130 has been set up, the cushioning effect has when realizing making a round trip to reset.

The shielding layer 160 is arranged above the upper fixed seat 100, and the shielding layer 160 is arranged below the lower fixed seat 100, so that a shielding system is formed, and the insulation strength is improved.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

More uses such as 10, ground switches; 20. an isolating switch; 30. solid-sealing the pole; 40. a vacuum arc-extinguishing chamber; 50. a housing; 60. a movable conductive rod; 70. a static conductive rod; 80. a moving contact; 90. static contact; 100. an upper fixed seat; 110. a lower fixed seat; 120. a guide post; 130. a spring; 140. a conductive diaphragm; 150. sliding bearings and the like, it is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or system comprising a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. An outdoor high-voltage three-station vacuum circuit breaker comprises a grounding switch, an isolating switch and an embedded pole, and is characterized in that a vacuum arc extinguish chamber is arranged in the embedded pole, the vacuum arc extinguish chamber comprises a shell, a movable conducting rod and a static conducting rod, one end of the movable conducting rod extends out of the shell, the other end of the movable conducting rod is provided with a movable contact, a static contact is arranged below the movable contact, the static contact is connected with the static conducting rod, the static conducting rod is connected with the shell, a contact assembly is arranged between the movable contact and the static contact, the contact assembly comprises a fixed seat and a conductive membrane, the fixed seat comprises an upper fixed seat and a lower fixed seat, a guide post is arranged between the upper fixed seat and the lower fixed seat, the conductive membrane is fixed on the guide post, and a spring is arranged on the guide post, the springs are located on both sides of the conductive diaphragm.

2. An outdoor high-voltage three-position vacuum circuit breaker according to claim 1, wherein a shielding layer is arranged above the upper fixing base, and a shielding layer is arranged below the lower fixing base.

3. An outdoor high-voltage three-position vacuum circuit breaker according to claim 2, characterized in that the outside of the movable conducting rod is provided with a sliding bearing.

4. An outdoor high voltage three position vacuum interrupter according to claim 3 wherein said housing is made of ceramic material.