Environment-friendly switch and insulating cover for contact of environment-friendly switch

Abstract

The utility model relates to an insulating cover used for an environment-friendly switch contact, the insulating cover is provided with a placing cavity, the insulating cover comprises an arc-shaped end part, a side plate part and a linear end part, the arc-shaped end part is connected with one end of the side plate part, the linear end part is connected with the other end of the side plate part, the side plate part is provided with a side surface groove, and the side surface groove is connected with the arc-shaped end part. A limiting plate is formed between the side face grooves and at the bottom of the insulating cover, and a circular opening is formed between the limiting plate and the arc-shaped end portion. The utility model further provides an environment-friendly switch with the insulating cover. According to the utility model, the insulating cover is arranged to improve the insulating property of the contact; in addition, the insulating cover and the annular protrusion are used in cooperation, it is guaranteed that the contact does not deviate in the opening and closing process, the connection stability is improved, the service life of the circuit breaker switch is prolonged, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical manufacturing technical field especially relates to a kind of environmental protection switch and its insulation cover for environmental protection switch contact. BACKGROUND

[0002] Ring main unit is a group of power transmission and distribution electrical equipment, is installed in metal or non-metal insulated cabinet or is made into the electrical equipment of assembled interval type ring network power supply unit, it usually adopts sulfur hexafluoride gas, environmental protection gas or epoxy resin as insulating medium.For the rapid development of electric power industry, using environmental protection gas as insulating medium will be an important trend of switch industry future development.The existing circuit breaker switch used in environmental protection gas cabinet is superior in its maintenance-free characteristics.The switch uses normal pressure sealed box structure, there is no threat of gas leakage, and can effectively isolate external impurities, dust, acid mist pollution, ensure the cleanliness of its busbar, circuit breaker, isolation knife, grounding knife operating environment and service life, realize the purpose of maintenance-free, thereby greatly reducing the investment of distribution network operation and management.

[0003] In the existing circuit breaker switch, the position of the fixed sealing pole assembly and the contact connected therewith will deviate when opening and closing, thereby leading to poor connection stability, and there is no corresponding insulation means, based on the above problems, the application proposes an insulation cover for fixed sealing pole. SUMMARY

[0004] The utility model discloses a kind of environmental protection switch and its insulation cover for environmental protection switch contact, to solve above-mentioned technical problem.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An insulation cover for environmental protection switch contact, the insulation cover has a placing cavity, the insulation cover includes an arc-shaped end, a side plate part and a straight end, the arc-shaped end is connected to one end of the side plate part, the straight end is connected to the other end of the side plate part, a side groove is provided on the side plate part, a limiting plate is formed between the side grooves and the bottom of the insulation cover, a circular opening is formed between the limiting plate and the arc-shaped end.

[0007] The utility model also provides an environmental protection switch, with the insulation cover, further include fixed sealing pole assembly, fixed sealing pole assembly includes transverse support and the insulation shell for placing vacuum tube, the end of the insulation shell is provided with annular protrusion, one side of the annular protrusion has opening, the annular protrusion is clamped with the insulation cover, one end of the insulation cover fills the opening.

[0008] The utility model further sets up, the annular protruding includes first limit protruding, second limit protruding and third limit protruding, the second limit protruding is arc protruding, first limit protruding and third limit protruding are connected with second limit protruding and distribute in both sides of second limit protruding, first limit protruding and third limit protruding are straight line protruding, the arc end part is fit second limit protruding, part of first limit protruding and third limit protruding is located in the side groove, and the lower end surface of side groove and the upper end surface of first limit protruding, third limit protruding abut, the circular orifice is used for fitting the conductive copper cover of vacuum pipe, the contact is provided on the conductive copper cover, the fixed part of contact is placed in the placing cavity of the insulating cover, and is connected with the conductive copper cover through fastener.

[0009] The utility model further sets up, the side of the fixed part of contact is wrapped by the insulating cover.

[0010] The utility model discloses the beneficial effect:

[0011] 1- setting insulating cover improves the insulation performance of contact time;

[0012] 2- the cooperation of insulating cover and annular protruding guarantees that the contact will not deviate in the process of opening and closing, improves the service life and product quality of circuit breaker switch while improving the stability of connection. DRAWINGS

[0013] The drawings explained here are used to provide further understanding of the application, and constitute a part of the application, and the illustrative embodiment of the application and its explanation are used to explain the application, and do not constitute improper limitation to the application.

[0014] Figure 1 It is the structural schematic diagram of the utility model embodiment 1.

[0015] Figure 2 It is the structural schematic diagram of the utility model embodiment 1.

[0016] Drawing reference: 10, insulating cover;101, arc end part;102, side plate part;103, straight line end part;104, limit board;105, side groove;106, circular orifice;20, placing cavity;30, solid seal pole assembly;301, transverse support;302, insulating shell;40, annular protruding;401, first limit protruding;402, second limit protruding;403, third limit protruding;50, contact; Specific implementation

[0017] The implementation of the application will be described in detail below with the drawings and examples, so that the realization process of how the application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0018] Embodiment 1:

[0019] As Figure 1 shown, the utility model provides a kind of for environmental protection switch contact 50's insulating cover 10, the insulating cover 10 has a placing cavity 20, the insulating cover 10 includes arc-shaped end 101, side plate part 102 and straight end 103, the arc-shaped end 101 connects one end of side plate part 102, the straight end 103 connects the other end of side plate part 102, side plate part 102 is provided with side groove 105, the bottom of insulating cover 10 is formed with limit plate 104 between side groove 105, the limit plate 104 is formed with circular opening 106 between the arc-shaped end 101, wherein the upper end of arc-shaped end is formed with shielding part towards the direction of circular opening.

[0020] Embodiment 2:

[0021] As Figure 2 shown, the utility model provides a kind of environmental protection switch, with the insulating cover 10 in embodiment 1, still include solid-enclosed pole assembly 30, solid-enclosed pole assembly 30 includes transverse support 301 and is used for placing vacuum tube's insulating shell 302, the end of insulating shell 302 is provided with annular protrusion 40, one side of annular protrusion 40 has opening, annular protrusion 40 is clamped with insulating cover 10, one end of insulating cover 10 fills opening.

[0022] The annular protrusion 40 includes first limit protrusion 401, second limit protrusion 402 and third limit protrusion 403, the second limit protrusion 402 is circular arc protrusion, the first limit protrusion 401 and third limit protrusion 403 are connected with the second limit protrusion 402 and are distributed on the two sides of second limit protrusion 402, the first limit protrusion 401 and third limit protrusion 403 are straight protrusions, the arc-shaped end 101 is adapted to the second limit protrusion 402, part of the first limit protrusion 401 and third limit protrusion 403 is located in side groove 105, the lower end surface of side groove 105 and the upper end surface of first limit protrusion 401, third limit protrusion 403 abut, the circular opening 106 is used for adapting the conductive copper sleeve of vacuum tube, the contact 50 is provided on the conductive copper sleeve, and the fixed part of the contact 50 is arranged in the placing cavity 20 of the insulating cover 10 and is connected with the conductive copper sleeve by fastener.The insulating cover 10 wraps the side of the fixed part of contact 50.

[0023] The utility model sets up insulating cover 10 to improve the insulation performance of contact 50;In addition, the cooperation of insulating cover 10 and annular protrusion 40 ensures that contact 50 does not deviate during opening and closing process, improves the service life and product quality of circuit breaker switch while improving the stability of connection.

[0024] As used in the specification and claims, some terms can have special meanings. Those of skill in the art will understand that one or more devices have been referred to by multiple names. The specification and claims should not be controlled by differences in nomenclature, but rather by the functional differences between the components. As used throughout this specification and in the claims, "comprising" is intended to mean including, but not limited to, to the extent not described elsewhere in the specification. "About" means within an acceptable range of, as understood by those of skill in the art, to allow for minor variations from the technical effect taught by the specification.

[0025] It should be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. Thus, for example, reference to "a component" includes a combination of two or more components, and the like.

[0026] The foregoing description shows and describes several preferred embodiments of the present application, but it is to be understood that the application is not limited to the precise arrangements and instrumentalities shown and described, as the same can be modified in various ways, and that all such variations and modifications are intended to be included within the scope of the application as set forth in the claims.

Claims

1. An insulating cover for an environmentally friendly switch contact, characterized in that The insulating cover has a placing cavity, and the insulating cover comprises an arc-shaped end, a side plate part and a straight end, the arc-shaped end is connected to one end of the side plate part, the straight end is connected to the other end of the side plate part, side grooves are arranged on the side plate part, a limiting plate is formed between the side grooves at the bottom of the insulating cover, and a circular opening is formed between the limiting plate and the arc-shaped end.

2. An environmentally friendly switch characterized by, The insulating cover has a placing cavity, and the insulating cover comprises an arc-shaped end, a side plate part and a straight end, the arc-shaped end is connected to one end of the side plate part, the straight end is connected to the other end of the side plate part, side grooves are arranged on the side plate part, a limiting plate is formed between the side grooves at the bottom of the insulating cover, and a circular opening is formed between the limiting plate and the arc-shaped end.

3. An environmentally friendly switch according to claim 2, wherein, The annular protrusion comprises a first limiting protrusion, a second limiting protrusion and a third limiting protrusion, the second limiting protrusion is a circular arc protrusion, the first limiting protrusion and the third limiting protrusion are connected to the second limiting protrusion and are distributed on both sides of the second limiting protrusion, the first limiting protrusion and the third limiting protrusion are straight protrusions, the arc-shaped end is adapted to the second limiting protrusion, part of the first limiting protrusion and the third limiting protrusion is located in the side groove, the lower end surface of the side groove abuts against the upper end surface of the first limiting protrusion and the third limiting protrusion, the circular opening is adapted to a conductive copper sleeve of a vacuum tube, a contact is arranged on the conductive copper sleeve, a fixed part of the contact is arranged in the placing cavity of the insulating cover and is connected to the conductive copper sleeve through a fastener.

4. An environmentally friendly switch according to claim 3, wherein, The insulating cover wraps the side surface of the fixed part of the contact.

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