阅读说明：本技术 一种新型隔离开关 (Novel isolating switch ) 是由 王伟 郭剑火 夏水银 王宁 刘月菲 戴萍 张钱伟 高超 于 2020-06-24 设计创作，主要内容包括：一种新型隔离开关,包括密封的壳体,所述壳体设有多个用于密封壳体上法兰口的支撑绝缘子,在壳体内设置有双断口开关装置,双断口开关装置包括动触头座、静触头座和至少两组相同的支撑导体,动触头座、静触头座各自通过一组支撑导体与壳体的两个支撑绝缘子可拆卸连接,其中用于与动触头座连接的支撑绝缘子为动侧绝缘子,用于与静触头座连接的支撑绝缘子为静侧绝缘子,支撑导体连接在支撑绝缘子上的一端用于形成出口导体。本发明的一种新型隔离开关,将动触头座、静触头座通过相同的支撑导体安装于壳体内,支撑导体的结构、加工完全相同,利于支撑导体形成标准化生产,能够降低生产成本；同时,利于改变内导结构,提高了内导结构的标准化程度。(The utility model provides a novel isolating switch, including sealed casing, the casing is equipped with a plurality of support insulators that are used for the sealed casing upper flange mouth, be provided with double-break switch device in the casing, double-break switch device is including moving the contact seat, static contact seat and at least two sets of the same support conductor, move the contact seat, static contact seat can dismantle with two support insulators of casing through a set of support conductor separately and be connected, wherein the support insulator that is used for being connected with moving the contact seat is for moving the side insulator, a support insulator for being connected with static contact seat is the static side insulator, the one end that support conductor connects on support insulator is used for forming the export conductor. According to the novel isolating switch, the movable contact seat and the static contact seat are arranged in the shell through the same supporting conductors, the structure and the processing of the supporting conductors are completely the same, the supporting conductors can be conveniently standardized, and the production cost can be reduced; meanwhile, the internal guide structure is favorably changed, and the standardization degree of the internal guide structure is improved.)

1. The utility model provides a novel isolating switch, includes sealed casing (1), casing (1) is equipped with a plurality of support insulators that are used for sealed casing (1) to go up the flange mouth, is provided with the double break switching device of an at least looks in casing (1), its characterized in that: the double-break switch device comprises a movable contact seat (2), a fixed contact seat (3) and at least two groups of same supporting conductors (6), wherein the movable contact seat (2) and the fixed contact seat (3) are detachably connected with two supporting insulators of a shell (1) through a group of supporting conductors (6), the supporting insulators connected with the movable contact seat (2) are movable side insulators (51), the supporting insulators connected with the fixed contact seat (3) are static side insulators (52), and one ends of the supporting conductors (6) connected to the supporting insulators are used for forming outlet conductors (61).

2. The novel isolating switch of claim 1, wherein: move contact seat (2) with relative position between stationary contact seat (3) is fixed, stationary contact seat (3) are equipped with three electrically conductive installation department (32), electrically conductive installation department (32) are used for fixed connection stationary contact seat (3) with supporting conductor (6), stationary side insulator (52) have three different positions that set up on casing (1), and three electrically conductive installation department (32) fixed connection's supporting conductor (6) set up the position with the three difference of stationary side insulator (52) respectively and correspond.

3. The novel isolating switch of claim 2, wherein: the static contact seat (3) is rod-shaped, one side of the static contact seat (3) facing the movable contact seat (2) is provided with a contact position (31), one side of the rod-shaped static contact seat (3) back to the movable contact seat (2) is provided with a conductive installation part (32), and the other two conductive installation parts (32) are respectively arranged on two end faces of the rod-shaped static contact seat (3).

4. The novel isolating switch of claim 2, wherein: the stationary insulator (52) is disposed at a position perpendicular to the center axis of the movable insulator (51).

5. The novel isolating switch of claim 2, wherein: the static side insulator (52) is arranged at an arrangement position in the central axis direction of the dynamic side insulator (51).

6. A novel disconnector according to claim 4 or 5, characterized in that: the static contact seat (3) is also connected with one or two other supporting conductors (6).

7. The novel isolating switch of claim 1, wherein: a three-phase double-break switch device is arranged in the shell (1), and the supporting conductors (6) in the same-phase double-break switch device are the same in shape; the support conductors (6) connected to the support insulators enclose an equilateral triangle with the outlet conductors (61) formed on the same support insulator.

8. The novel isolating switch of claim 1, wherein: the supporting conductor (6) is a hollow conductor, and the middle part of the supporting conductor (6) is bent to enable the two ends of the supporting conductor (6) to be staggered and not located on the same axis.

9. The novel isolating switch of claim 2, wherein: the static contact seat (3) is a cylinder opening corresponding to the contact position (31), the cylinder opening is formed by a plurality of sequentially stacked circular rings with different diameters, a structure with multiple sections of R angles connected is formed among the circular rings, and the external chamfer angle of the multiple sections of R angles is larger than the internal chamfer angle.

10. The novel isolating switch of claim 1, wherein: the movable contact seat (2) comprises a hollow column body (21) serving as a contact seat, a conductive connecting portion (22) bent towards one side is arranged on the side wall of the hollow column body (21), the end portion of the conductive connecting portion (22) is used for being connected with the supporting conductor (6), a movable contact body is slidably mounted in the hollow column body (21), one end of the hollow column body (21) corresponds to the position of a contact on the static contact seat (3), and the end portion of the other end of the hollow column body is used for corresponding to the grounding static contact (4).

11. The novel isolating switch according to claim 1, characterized in that the double-break switch device further comprises a static grounding contact (4), the static grounding contact (4) is arranged between the movable contact base (2) and the movable side insulator (51) through the housing (1), and the static grounding contact (4), the movable contact base (2) and the static contact base (3) are collinear.

12. The novel isolating switch according to claim 1, wherein the housing (1) is a hollow structure symmetrical along a transverse central axis, two pairs of opposite flange openings are arranged on the housing (1), one pair of the flange openings are oppositely arranged along the transverse central axis of the housing (1), the other pair of the flange openings are oppositely arranged along the vertical direction of the housing (1), and a supporting insulator is covered on each flange opening in a sealing manner.

Technical Field

The invention relates to an isolating switch, in particular to a novel isolating switch.

Background

The GAS insulated metal enclosed switchgear (GAS insulated SWITCHGEAR, GIS) has a closed housing, and the inner guide structure of the isolator installed inside the housing is basically divided into two types, one type is a rotary swing type structure, and the other type is a movable contact telescopic type structure. However, in practical production applications, due to the need to mix different structural forms of the disconnecting switch (such as linear arrangement and right-angle arrangement), the existing structure generally needs to adopt different types of casting internal guide structures, and different structural changes are realized through assembly. Thus, the existing structure is relatively low in standardization, and the number of parts is large, so that the equipment is not convenient to assemble.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a novel isolating switch with a simple structure.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a novel isolating switch, includes sealed casing, the casing is equipped with a plurality of support insulators that are used for the sealed casing upper flange mouth, is provided with an at least looks double break switch device in the casing, double break switch device is including moving contact seat, static contact seat and at least two sets of the same support conductor, and moving contact seat, static contact seat can dismantle through two support insulators of a set of support conductor and casing respectively and be connected, and wherein the support insulator that is used for being connected with moving contact seat is for moving the side insulator, and the support insulator that is used for being connected with the static contact seat is quiet side insulator, and the one end that support conductor connects on support insulator is used for forming the export conductor.

Further, the movable contact seat is fixed with the relative position between the static contact seats, the static contact seats are provided with three conductive installation parts, the conductive installation parts are used for being fixedly connected with the static contact seats and the supporting conductors, the static side insulator is provided with three different setting positions on the shell, and the supporting conductors fixedly connected with the three conductive installation parts respectively correspond to the three different setting positions of the static side insulator.

Furthermore, the static contact seat is rod-shaped, one side of the static contact seat facing the moving contact seat is provided with a contact position, one side of the rod-shaped static contact seat back to the moving contact seat is provided with a conductive installation part, and the other two conductive installation parts are respectively arranged on two end faces of the rod-shaped static contact seat.

Further, the static side insulator is arranged at a position in a direction perpendicular to the central axis of the dynamic side insulator.

Further, the static side insulator is arranged at a position on the central axis direction of the dynamic side insulator.

Furthermore, the static contact seat is also connected with one or two other supporting conductors.

Further, a three-phase double break switch device is provided in the case, and the support conductors in the double break switch devices of the same phase have the same shape.

Furthermore, the supporting conductor is a hollow conductor, and the middle part of the supporting conductor is bent to enable the two ends of the supporting conductor to be staggered and not located on the same axis.

Furthermore, a three-phase double-break switch device is arranged in the shell, and an outlet conductor formed by the support conductors connected to the support insulators on the same support insulator forms an equilateral triangle.

Furthermore, the moving contact base comprises a hollow cylinder body serving as a contact base, a conductive connecting portion bent towards one side is arranged on the side wall of the hollow cylinder body, the end portion of the conductive connecting portion is used for being connected with the supporting conductor, a moving contact body is slidably mounted in the hollow cylinder body, one end of the hollow cylinder body corresponds to the position of a contact on the static contact base, and the end portion of the other end of the hollow cylinder body is used for corresponding to the grounding static contact.

Further, the double-break switch device further comprises a grounding static contact, the grounding static contact penetrates through the shell and is arranged between the movable contact seat and the movable side insulator, and the grounding static contact, the movable contact seat and the static contact seat are collinear.

Furthermore, the shell is of a hollow structure symmetrical along a transverse central axis, two pairs of opposite flange openings are arranged on the shell, one pair of the flange openings are arranged oppositely along the transverse central axis of the shell, the other pair of the flange openings are arranged oppositely along the vertical direction of the shell, and a supporting insulator is covered on each flange opening in a sealing manner.

Furthermore, the position of the static contact base corresponding to the contact is a cylinder mouth, the cylinder mouth is formed by a plurality of sequentially stacked circular rings with different diameters, a structure with multiple sections of R-angle connected is formed among the circular rings, and the external chamfer angle of the multiple sections of R-angle is larger than the internal chamfer angle.

According to the novel isolating switch, the movable contact seat and the static contact seat are arranged in the shell through the same supporting conductors, the structure and the processing of the supporting conductors are completely the same, the supporting conductors can be conveniently standardized, and the production cost can be reduced; meanwhile, the structure that the movable contact seat and the static contact seat are connected with the supporting insulator through the supporting conductor belongs to a pre-formed installation module, and the movable contact seat and the static contact seat are installed in the shell in the installation process to form modular assembly, so that the change of the internal guide structure is facilitated, the standardization degree of the internal guide structure is improved, and of course, the detachable supporting structure further simplifies the installation steps and reduces the assembly difficulty.

The novel isolating switch is based on the structure that the movable contact seat and the static contact seat are connected with the supporting insulator through the supporting conductors, and can be suitable for the structure that the central axes of the movable insulator and the supporting insulator serving as the static insulator are perpendicular to each other, or the movable insulator and the static insulator are oppositely arranged along the central axis of the shell, and the static contact seat can be connected with the plurality of supporting conductors, so that the outlet conductors can be arranged on the static insulator at each position of the isolating switch.

In addition, the static contact base is provided with a convex conductive mounting part, and outgoing lines in different directions can be realized through connection with the supporting conductor; mounting parts are arranged at two ends of the supporting conductor and used for realizing detachable connection through mounting of bolts; the supporting conductor is composed of a supporting piece and a conductor, and a branched structure is formed at one end connected with the supporting insulator, so that the connection stability is further improved under the condition of ensuring the electric conduction.

Drawings

Fig. 1-2 are schematic structural views of a first embodiment of a novel isolating switch of the invention;

fig. 3 is a schematic structural diagram of a second embodiment of a novel isolating switch of the invention;

fig. 4-5 are schematic structural diagrams of a third embodiment of the novel isolating switch of the invention;

fig. 6 is a schematic structural diagram of a fourth embodiment of the novel isolating switch of the invention.

FIG. 7 is an internal schematic view of a novel isolator switch of the present invention;

FIG. 8 is a schematic structural diagram of a stationary contact base of the novel isolating switch of the invention;

FIGS. 9-10 are schematic structural views of the movable contact seat of the novel isolating switch of the invention;

fig. 11 is a schematic structural diagram of a supporting conductor of a novel isolating switch of the invention.

Detailed Description

The following describes a specific embodiment of a novel isolating switch according to the present invention with reference to the embodiments shown in fig. 1 to 11. The novel disconnector of the invention is not limited to the description of the following embodiments.

The utility model provides a novel isolating switch, includes sealed casing 1, casing 1 is equipped with a plurality of supporting insulator that are used for sealed casing 1 to go up the flange mouth, is provided with an at least looks double break switch device in casing 1, double break switch device is including moving contact seat 2, static contact base 3 and at least two sets of the same supporting conductor 6, and moving contact seat 2, static contact base 3 can dismantle with two supporting insulator of casing 1 through a set of supporting conductor 6 separately and be connected, and wherein the supporting insulator that is used for being connected with moving contact seat 2 is for moving side insulator 51 for the supporting insulator who is connected with static contact base 3 is quiet side insulator 52, and the one end that supporting conductor 6 connects on supporting insulator is used for forming outlet conductor 61.

According to the novel isolating switch, the movable contact seat 2 and the static contact seat 3 are arranged in the shell 1 through the same supporting conductors 6, the structures and the processing of the supporting conductors 6 are completely the same, the supporting conductors 6 are beneficial to forming standardized production, and the production cost can be reduced; meanwhile, the movable contact seat 2 and the fixed contact seat 3 are connected with the supporting insulator through the supporting conductor 6, belong to a preformed installation module, are installed in the shell 1 in the installation process to form modular assembly, are favorable for changing an internal guide structure, improve the standardization degree of the internal guide structure, and certainly, the detachable supporting structure further simplifies the installation steps and reduces the assembly difficulty.

As shown in fig. 1-7, a novel isolating switch includes a sealed housing 1, the housing 1 has a transverse length greater than a vertical length, the housing 1 is a hollow structure symmetrical along a transverse central axis, two pairs of flange ports are usually disposed on the housing 1, one pair of flange ports is disposed along the transverse central axis of the housing 1, the other pair of flange ports is disposed along the vertical central axis of the housing 1, that is, disposed perpendicular to the transverse central axis of the housing 1, the housing 1 is provided with a plurality of supporting insulators for sealing the flange ports of the housing 1, at least one phase of double-break switch device is disposed between two supporting insulators in the housing 1, the double-break switch device includes a moving contact base 2, a static contact base 3, a grounding static contact 4 and at least two groups of same supporting conductors 6, the moving contact base 2 and the static contact base 3 are detachably connected with the two supporting insulators of the housing 1 through a group of supporting conductors 6, the supporting insulator for connecting with the moving contact seat 2 is a moving side insulator 51, the supporting insulator for connecting with the static contact seat 3 is a static side insulator 52, and one end of the supporting conductor 6 connected to the supporting insulator is used for forming an outlet conductor 61.

Further, the relative position between the movable contact base 2 and the fixed contact base 3 is fixed, the fixed contact base 3 is provided with three conductive installation portions 32, the conductive installation portions 32 are used for fixedly connecting the fixed contact base 3 and the supporting conductors 6, the fixed side insulator 52 has three different setting positions on the shell 1, the supporting conductors 6 fixedly connected with the three conductive installation portions 32 respectively correspond to the three different setting positions of the fixed side insulator 52, wherein the fixed side insulator 52 is arranged at the setting position in the vertical direction of the central axis of the movable side insulator 51, or the fixed side insulator 52 is arranged at the setting position in the central axis direction of the movable side insulator 51, and one or two supporting conductors 6 are additionally connected to the fixed contact base 3.

The grounding static contact 4 penetrates through the shell 1 and is arranged between the movable contact seat 2 and the movable side insulator 51, preferably, the grounding static contact 4, the movable contact seat 2 and the static contact seat 3 are arranged along the direction of the central axis of the shell 1, and the grounding static contact 4, the movable contact seat 2 and the static contact seat 3 are collinear.

In a first embodiment provided by combining fig. 1 and 2, there are two sets of the supporting conductors 6, and the central axes of the supporting insulators as the moving-side insulator 51 and the static-side insulator 52 are perpendicular to each other, as shown in fig. 1 and 2, the moving-side insulator 51 is disposed on a flange opening on the left side of the housing 1 in the figure, a set of the supporting conductors 6 is disposed on the moving-side insulator 51 for connecting the moving-side insulator 51 and the moving contact base 2, and the supporting conductors 6 connected to the moving contact base 2 are disposed along the central axis direction of the moving-side insulator 51; in fig. 1, the stationary insulator 52 is disposed on a flange opening on the upper side of the housing 1, in fig. 2, the stationary insulator 52 is disposed on a flange opening on the lower side of the housing 1, a group of supporting conductors 6 for connecting the stationary insulator 52 and the stationary contact base 3 are disposed on the stationary insulator 52, and the supporting conductors 6 disposed on the stationary insulator 52 are perpendicular to the central axis of the housing 1.

A second embodiment is provided with reference to fig. 3, and is different from the first embodiment in that the movable insulator 51 and the stationary insulator 52 are disposed opposite to each other along the central axis of the housing 1, the number of the supporting conductors 6 is still two, and the supporting conductors 6 connected to the movable contact base 2 and the stationary contact base 3 are both disposed along the central axis of the movable insulator 51.

With reference to fig. 4 and 5, a third embodiment is provided, in which the central axes of the moving side insulator 51 and the static side insulator 52 are perpendicular to each other, the supporting conductors 6 include three sets of supporting conductors 6, one set of supporting conductors 6 is used for connecting the moving side insulator 51 and the moving contact base 2, the other two sets of supporting conductors 6 are disposed on the static contact base 3, and one set of supporting conductors 6 is used for connecting the static contact base 3 and the static side insulator 52 to form the outlet conductor 61. Preferably, the supporting conductors 6 connected to the moving contact base 2 are arranged along the central axis direction of the moving-side insulator 51, the two groups of supporting conductors 6 arranged on the stationary contact base 3 are arranged along the central axis direction perpendicular to the moving-side insulator 51, and the two groups of supporting conductors 6 are symmetrically arranged on two sides of the stationary contact base 3, wherein one group of supporting conductors 6 is used for being connected to the stationary-side insulator 52. As shown in fig. 4, the stationary insulator 52 is disposed on a flange opening above the housing 1, the supporting conductor 6 connected to the upper side of the stationary contact base 3 is connected to the stationary insulator 52 to form an outlet conductor 61, and the supporting conductor 6 disposed below the stationary contact base 3 may also be connected to the supporting insulator below the stationary contact base 3 to form the outlet conductor 61. As shown in fig. 5, the stationary insulator 52 is disposed on the flange opening below the housing 1, the supporting conductor 6 connected to the lower side of the stationary contact base 3 is connected to the stationary insulator 52 to form an outlet conductor 61, and the supporting conductor 6 disposed above the stationary contact base 3 may also be connected to the supporting insulator on the lower side of the stationary contact base 3 to form the outlet conductor 61. Of course, the movable insulator 51 and the stationary insulator 52 may be disposed oppositely, and in this case, the movable insulator 51 and the stationary insulator 52 are preferably disposed oppositely along the central axis of the housing 1, the number of the supporting conductors 6 is three, one of the three sets is disposed along the central axis of the movable insulator 51 for connecting the movable insulator 51 and the movable contact base 2, the other two sets are disposed on the stationary contact base 2, one of the two sets may be disposed along the central axis of the movable insulator 51 and connected to the stationary insulator 52, and the other set is disposed perpendicular to the central axis of the movable insulator 51 (not shown in the figure).

In a fourth embodiment, as shown in fig. 6, the supporting insulator disposed on the housing 1 includes two supporting insulators disposed opposite to each other, one of the supporting insulators serves as a moving-side insulator 51 for connecting with the moving contact base 2, and the other supporting insulator serves as a static-side insulator 52 for connecting with the static contact base 3; the supporting conductors 6 comprise four groups of supporting conductors 6, one group of supporting conductors 6 is arranged along the central axis direction of the moving side insulator 51 and is used for connecting the moving side insulator 51 and the moving contact base 2, the other three groups of supporting conductors 6 are dispersedly arranged on the static contact seat 3, two groups of the three groups of supporting conductors 6 are arranged vertical to the central axis of the moving side insulator 51, and the supporting conductors 6 are symmetrically arranged on two sides of the static contact base 3, the other group is arranged along the central axis of the moving-side insulator 51, one group of the three groups of supporting conductors 6 is used for connecting the static contact base 3 with the static-side insulator 52 to form an outlet conductor 61, preferably, as shown in fig. 3, two of the three groups of supporting conductors 6 connected to the static contact base 3 are symmetrically arranged on the upper side and the lower side of the static contact base 3, and the other group of supporting conductors 6 is arranged along the central axis direction of the moving-side insulator 51 and forms a symmetrical structure with the supporting conductors 6 connected to the moving contact base 2. It should be noted that the multiple sets of supporting conductors 6 on the stationary contact block 3 may be connected to multiple stationary side insulators 52 to form multiple outlet conductors 61. Of course, in this embodiment, two supporting insulators with mutually perpendicular central axes may be used as the moving-side insulator 51 and the stationary-side insulator 52, and at this time, one of the three groups of supporting conductors 6 on the stationary contact block 3 may be optionally connected with one supporting insulator to form the stationary-side insulator 52, so that the wires can be led out from three directions.

In the above four embodiments, the double-break switch device in the housing 1 is three-phase, and the double-break switch device in the housing 1 is described with reference to fig. 7 to 11, preferably, a three-phase double-break switch device is provided in the housing 1, the supporting conductors 6 in the double-break switch device of the same phase have the same shape, and the supporting conductors 6 in the double-break switch devices of two adjacent phases have different shapes, that is, as shown in fig. 7, the supporting conductors 6 on the moving contact base 2 and the stationary contact base 3 in each phase have the same shape, but the supporting conductors 6 on the moving contact base 2 of two adjacent phases have different shapes, the supporting conductors 6 on the stationary contact base 3 of two adjacent phases have different shapes, and the supporting conductors 6 connected to the supporting insulators form an equilateral triangle around the outlet conductor 61 on the same supporting insulator. Of course, the shapes of the supporting conductors 6 in the two adjacent phases of the double break switchgear may be the same, and the outlet conductors 61 formed by three supporting conductors 6 connected to the supporting insulator on the same supporting insulator may be arranged side by side or enclose a non-equilateral triangle.

As shown in fig. 7 to 8, the stationary contact block 3 is provided with three sets of conductive mounting portions 32, wherein two sets of conductive mounting portions 32 are arranged in a direction perpendicular to the axial direction of the movable side insulator 51, and the other set of conductive mounting portions 32 is arranged in a direction protruding toward the stationary side support insulator 52 in the central axial direction of the movable side insulator 51 and is connected with the stationary side support insulator 52 through one set of support conductors 6.

The three-phase double-break switch device comprises three parallel static contact seats 3, preferably three conductive installation parts 32 which can be connected with a supporting conductor 6 are arranged on each static contact seat 3, the three conductive installation parts 32 respectively protrude towards three directions, the three conductive installation parts 32 arranged in the same direction of the three parallel static contact seats 3 are a group of conductive installation parts 32, and after the three groups of protruding conductive installation parts 32 on each static contact seat 3, which can correspond to one group of supporting conductors 6, of each group of conductive installation parts 32 are connected with the supporting conductor 6, and then the three groups of protruding conductive installation parts 32 are connected with a static side insulator 52, so that outgoing lines in different directions can be realized.

Every stationary contact seat 3 is specifically as shown in fig. 9, stationary contact seat 3 is shaft-like stationary contact seat 3, middle part one side of shaft-like stationary contact seat 3 is contact position 31, contact position 31 sets up towards moving contact seat 2, is equipped with a electrically conductive installation department 32 at shaft-like stationary contact seat 3 opposite side to contact position 31, and two electrically conductive installation departments 32 set up respectively on two terminal surfaces of shaft-like stationary contact seat 3 in addition.

As shown in fig. 9 and 10, the three-phase dual-break switch device includes three moving contact seats 2 arranged in parallel, each moving contact seat 2 is identical, the moving contact seat 2 includes a hollow column 21 serving as a contact seat, a moving contact body (not shown) is slidably mounted in the hollow column 21, a stationary contact body is also mounted in the opposite stationary contact seat 3 and is electrically connected to the stationary contact seat 3, a conductive connection portion 22 bent toward one side is disposed on a side wall of the hollow column 21, an end portion of the conductive connection portion 22 is used for being connected to the supporting conductor 6, so that an axis of the hollow column 21 is dislocated from the conductive connection portion 22, an end portion of one end of the hollow column 21 is disposed corresponding to a contact position on the stationary contact seat 3, and an end portion of the other end is disposed corresponding to the grounding stationary contact.

As shown in fig. 11, the two ends of the supporting conductor 6 are provided with assembling portions 62, the assembling portions 62 at the two ends of the supporting conductor 6 are used for detachable connection of the supporting conductor 6, the assembling portions 62 are provided with grooves for facilitating assembly, and bolts for connection are preferably arranged in the grooves. Specifically, the assembling portion 62 at one end of the supporting conductor 6 is connected to the supporting insulator through a bolt, at this time, the outlet conductor 61 may be formed on the supporting insulator, and the assembling portion 62 at the other end of the supporting conductor 6 is connected to the movable contact base 2 or the static contact base 3 through a bolt. Preferably, the supporting conductor 6 is a hollow conductor, and the middle of the supporting conductor 6 is bent to enable the two ends of the supporting conductor 6 to be staggered and not located on the same axis, so that the assembly of the supporting conductor 6 is facilitated, the installation stability of the movable contact seat 2 and the static contact seat 3 is ensured, and excessive space occupation is avoided. As another embodiment, the supporting conductor 6 is a hollow conductor, two ends of the supporting conductor 6 extend to two sides respectively and are staggered, and the extending positions of the two ends are provided with notches for facilitating assembly.

The supporting conductor 6 of the invention is matched with an integral structure, and an inner bending design is carried out on the supporting insulator for overcoming an electric field, and the bending angle is more than R50. In order to overcome the problem of an electric field, the static contact seat 3 (see fig. 8) and the movable contact seat 2 are designed into a structure scheme that multiple sections of R corners are connected through end fillets, and the external chamfers of the multiple sections of R corners are larger than the internal chamfers. The multi-section R angle means that a chamfer is arranged at a cylinder opening corresponding to the hollow cylindrical structure corresponding to the moving contact base 2 and the static contact base 3, the arc corresponding to the chamfer is sectional, and the chamfer corresponding to the cylinder opening towards the outer side is larger than the chamfer corresponding to the inner side.

As shown in fig. 8, the position 31 of the static contact base 3 corresponding to the contact is a cylindrical opening, the cylindrical opening is formed by a plurality of sequentially stacked circular rings with different diameters, a structure in which a plurality of sections of R-shaped corners are connected is formed between the plurality of circular rings, and the external chamfer angle of each section of R-shaped corner is larger than the internal chamfer angle.

The supporting conductors in the application are installed in three different directions by arranging the same supporting conductors 6 and using the same components, the same standard components are applied to the corresponding supporting conductors 6 under three conditions, and meanwhile, the supporting conductors can be kept unchanged in relative positions with the moving contact base 2 after being connected with the static contact base 3 in the three directions.

In fig. 11, the supporting conductor 6 is shown to be connected to the stationary insulator 52, but the supporting conductor 6 is connected to the movable insulator 51 in the same manner as described above.

The utility model provides a during novel isolator's equipment, move contact seat 2 and be connected through at least a set of support conductor 6 and a support insulator and form first installation module, quiet contact seat 3 is connected through at least a set of support conductor 6 and a support insulator and forms second installation module, first installation module is through its support insulator seal installation on a flange mouth of casing 1, and second installation module is through its support insulator seal installation on another flange mouth of casing 1, and ground contact 4 passes casing 1 and installs on casing 1 is interior, and makes move contact seat 2 be located between quiet contact seat 3 and ground contact 4. The movable contact seat 2 and one supporting insulator form a first installation module through the supporting conductor 6, the static contact seat 3 and the other supporting insulator form a second installation module through the supporting conductor 6, and the first installation module and the second installation module are installed on the shell 1 through respective supporting insulators.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.