CN214505373U

CN214505373U - Arc extinguishing chamber system

Info

Publication number: CN214505373U
Application number: CN202120906729.0U
Authority: CN
Inventors: 淡炳雄; 池慧清; 廖圣敏; 魏素华
Original assignee: Siemens High Voltage Switchgear Co Ltd
Current assignee: Siemens High Voltage Switchgear Co Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-10-26
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses an explosion chamber system. The explosion chamber system includes: a housing having a side wall and opposing top and bottom ends; a movable end member and a stationary end member fixed inside the housing, wherein the movable end member is a hollow cylindrical body and includes an open first end and an open second end opposite to the first end of the movable end member, and wherein the stationary end member is a hollow cylindrical body and includes an open first end and a second end opposite to the first end of the stationary end member; and an insulating connector configured to connect the moving end member and the stationary end member. Through such arrangement mode, easily realize moving end part and quiet end part's centering in the explosion chamber installation, be convenient for move end part and quiet end part's change, reduce the atress of the in-process spout of breaking to reduce insulating part's quantity, reduce the accident probability of discharging and reduce assembly work load.

Description

Arc extinguishing chamber system

Technical Field

The present invention relates generally to the field of electrical equipment, and more particularly, to an arc chute system.

Background

The arc extinguish chamber is a core component of the high-voltage power switch, and is used for rapidly extinguishing an arc after a high-voltage circuit is cut off a power supply through excellent insulating property of SF6 gas, cutting off a fault circuit, preventing an accident from being enlarged, ensuring safe operation and avoiding accidents and accidents.

Traditional explosion chamber system is that the both ends of explosion chamber are fixed at the top and the bottom of circuit breaker casing with the insulating part respectively, perhaps the both ends of explosion chamber are connected and adopt the triangle arrangement mode to fix to the circuit breaker casing with the insulating cylinder, and these explosion chamber systems or insulating part is in large quantity and discharges easily, or the structure is complicated and be unfavorable for arranging of explosion chamber.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an explosion chamber system to solve the problem among the prior art.

In order to achieve the above object, there is provided an arc chute system comprising: a housing having a side wall and opposing top and bottom ends; and an arc chute assembly, the arc chute assembly comprising: a moving end member and a stationary end member secured within the housing, wherein the moving end member is a hollow cylinder and includes an open first end and an open second end opposite the first end of the moving end member, and wherein the stationary end member is a hollow cylinder and includes an open first end and a second end opposite the first end of the stationary end member; and an insulating connector configured to connect the moving end member and the stationary end member.

Further, the arc chute system further comprises: a stationary end arcing contact disposed within the stationary end member and at the first end of the stationary end member; a live conducting module comprising a drawbar and a live end arcing contact at an end of the drawbar, wherein the live conducting module is configured to be partially extendable from an interior of the live end member via the second end of the live end member to abut the live end arcing contact to the stationary end arcing contact, and to be retractable into the interior of the live end member via the second end of the live end member to disengage the live end arcing contact from the stationary end arcing contact.

Further, the movable conducting module further comprises a spout component sleeved and fixed on the end portion of the pull rod, wherein when the movable end arc striking contact abuts against the static end arc striking contact, a part of the movable end arc striking contact, which is in contact with the static end arc striking contact, is surrounded by the spout component.

Further, the spout member includes a tubular guide portion projecting to the outside of the moving-end arcing contact in the extending direction of the draw bar, for receiving and guiding the stationary-end arcing contact.

Further, the insulating connector is configured to connect the second end of the moving end member and the first end of the stationary end member.

Further, the insulating connecting member includes a rod-shaped main body and two connecting portions protruding from opposite ends of the rod-shaped main body in parallel with each other, wherein one of the two connecting portions is connected to one of the moving end member and the stationary end member, and the other of the two connecting portions is connected to the other of the moving end member and the stationary end member.

Further, one or more connecting pins are arranged on each of the two connecting parts so as to be in clamping fit with a corresponding number of connecting holes arranged on the movable end part or the static end part.

Further, the second end of the moving end member and the first end of the stationary end member are aligned with each other.

Further, the arc extinguishing chamber system further includes a current transformer connected to the side wall of the housing from the outside of the housing and communicating with the inside of the housing, the current transformer and the moving end member being fixedly connected to each other by a first connecting conductor.

Further, the arc extinguishing chamber system further includes a bus bar isolation switch connected to the side wall of the housing from the outside of the housing and communicating with the inside of the housing, the bus bar isolation switch and the stationary end member being fixedly connected to each other by a second connection conductor.

Through such arrangement mode, easily realize moving end part and quiet end part's centering in the explosion chamber installation, be convenient for move end part and quiet end part's change, reduce the atress of the in-process spout of breaking to reduce insulating part's quantity, reduce the accident probability of discharging and reduce assembly work load.

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:

figure 1 is a schematic side sectional view showing an arc chute system according to the present invention;

fig. 2 is a schematic side sectional view illustrating an arc chute assembly according to the present invention;

fig. 3 is a schematic side cross-sectional view illustrating a dynamic conductive module according to the present invention;

fig. 4A is a schematic side cross-sectional view showing an insulated connector according to the present invention;

fig. 4B is a schematic perspective view showing an insulated connector according to the present invention; and

fig. 4C is a schematic perspective view illustrating the insulated connector shown in fig. 4B, in which a connection pin is removed to show a pin hole provided on the connection part.

Wherein the reference numbers are as follows:

100 arc chute system

10 arc extinguishing chamber assembly

1 moving end part

11 move conductive module

111 draw bar

112 moving end arc striking contact

113 spout component

1131 tubular guide part

1132 via hole

2 static end part

21 static end arc striking contact

3 insulating connecting piece

31 rod-shaped body

32 connecting part

33 connecting pin

34 pin hole

4 current transformer

41 first connection conductor

5 bus isolating switch

51 second connection conductor

H casing

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail by referring to the following embodiments.

Referring to fig. 1, the present disclosure provides an arc chute system 100. The arc chute system 100 includes a housing H and an arc chute assembly 10. The housing H has side walls and opposite top and bottom ends. The housing H may be substantially cylindrical, but the shape of the housing H is not limited thereto.

Referring to fig. 1-3, an arc chute assembly 10 can include a moving end member 1 and a stationary end member 2. The moving end member 1 and the stationary end member 2 are fixed inside the housing H. The movable end member 1 is a hollow cylindrical body and includes an open first end and an open second end opposite to the first end. The stationary end member 2 is a hollow cylindrical body and includes an open first end and a second end opposite to the first end. The arc chute assembly 10 may further include an insulating connector 3, the insulating connector 3 configured to connect the moving end member 1 and the stationary end member 2.

For example, the moving end member 1 and the stationary end member 2 may be fixed to the side wall of the housing H through respective connectors inside the housing H, but the arrangement of the moving end member 1 and the stationary end member 2 is not limited thereto, and for example, as will be described in detail later, the moving end member 1 and the stationary end member 2 may be fixedly connected to the current transformer 4 and the bus bar disconnector through the first connecting conductor 41 and the second connecting conductor 51, respectively.

Referring to fig. 1 to 3, the arc chute system 100 may further comprise a stationary end ignition contact 21, the stationary end ignition contact 21 being arranged inside the stationary end part 2 and at a first end of the stationary end part 2. In particular, the stationary end arcing contact 21 may preferably project slightly beyond the stationary end member 2 via the first end of the stationary end member 2. Furthermore, the arc chute system 100 may further comprise a dynamic conductive module 11, the dynamic conductive module 11 comprising a pull rod 111 and a dynamic end arcing contact 112 at an end of the pull rod 111. The movable conductive module 11 is inserted into the movable end member 1 through the first end of the movable end member 1. In particular, as shown in fig. 1, the movable conductive module 11 may extend through the top end of the housing H (e.g., via an opening provided in the top end of the housing H, or the top end of the housing H itself is open) to the interior of the housing H, and then through the interior of the movable end member 1 via the open first end of the movable end member 1. Furthermore, the live conductor module 11 is configured to be partially protruded from the inside of the live end part 1 via the second end of the live end part 1 (preferably, only the live end ignition contact 112 is protruded) to abut the live end ignition contact 112 to the stationary end ignition contact 21, and to be retracted into the inside of the live end part 1 via the second end of the live end part 1 to disengage the live end ignition contact 112 from the stationary end ignition contact 21. In particular, as shown in fig. 1, when the power switch is switched on, the moving conducting module 11 moves downwards through the second end of the moving end member 1 and abuts the moving end arcing contact 112 to the stationary end arcing contact 21 fixed in the vicinity of the first end of the stationary end member 2; when the power switch is switched off, the movable conducting module 11 moves back up into the interior of the movable end part 1 and disengages the movable end arcing contact 112 from the stationary end arcing contact 21.

In addition, referring to fig. 2 and 3, the dynamic and conductive module 11 may further include a spouting member 113 sleeved and fixed on an end of the pulling rod 111. When the moving-end arcing contact 112 abuts against the stationary-end arcing contact 21, a portion of the moving-end arcing contact 112 in contact with the stationary-end arcing contact 21 is surrounded by the spout member 113. The spouting member 113 may be insulative, i.e., made of an insulative material. Furthermore, the spout member 113 may further include a tubular guide portion 1131 protruding to the outside of the moving-end arcing contact 112 in the extending direction of the tie rod 111 for receiving and guiding the stationary-end arcing contact 21. In particular, the tubular guide portion 1131 includes a through hole 1132 that penetrates along the extending direction of the tie rod 111, and the size of the through hole 1132 matches with the stationary-end arcing contact 21. When the moving conductive module 11 moves toward the stationary-end arcing contact 21, the stationary-end arcing contact 21 is guided into the spouting member 113 via the through hole 1132 of the tubular guide portion 1131 and is thereby brought into contact with the moving-end arcing contact 112.

Preferably, as shown in fig. 1 and 2, the insulating connector 3 is configured to connect the second end of the moving end member 1 and the first end of the stationary end member 2.

Referring to fig. 4A to 4C, the insulating connector 3 has a substantially phone-shaped structure or a pi-shaped structure. The insulating connection member 3 may include a rod-shaped body 31 and two connection portions 32 protruding from opposite ends of the rod-shaped body 31 in parallel with each other. One of the two connecting portions 32 is connected to one of the moving end member 1 and the stationary end member 2, and the other of the two connecting portions 32 is connected to the other of the moving end member 1 and the stationary end member 2.

In particular, in order to achieve the connection of the insulating connector 3 to the moving end part 1 and the stationary end part 2, one or more connecting pins 33 may be provided on each of the two connecting portions 32 to snap-fit with a corresponding number of connecting holes (not shown) provided on the moving end part 1 or the stationary end part 2. Preferably, a pin hole 34 corresponding to and aligned with the above-described connection hole may be provided in the connection portion 32 of the insulating connection member 3, and the connection pin 33 may be inserted toward the moving end member 1 or the stationary end member 2 from one side of the insulating connection member 3 to the opposite side of the insulating connection member 3 via the pin hole 34 and into the corresponding connection hole of the moving end member 1 or the stationary end member 2. More preferably, the connecting pin may be a screw with an external thread, and the connecting hole (in particular, both the connecting hole and the pin hole 34) is provided with an internal thread that mates with the external thread of the screw.

Preferably, the second end of the moving end member 1 and the first end of the stationary end member 2 are aligned with each other, so as to facilitate the contact/abutment of the moving end arcing contact 112 of the moving conductive module 11 with the stationary end arcing contact 12. In particular, the longitudinal extension direction of the moving end member 1 and the longitudinal extension direction of the stationary end member 2 are substantially collinear. In particular, in the case where the moving end member 1 and the stationary end member 2 are, for example, cylinders or cylinders having a regular polygonal cross section, the extension axis (i.e., the central longitudinal axis, as shown by the broken line in fig. 2, for example) of the moving end member 1 and the extension axis of the stationary end member 2 may coincide with each other. Furthermore, the stationary end arcing contact 21 and the moving end arcing contact 112 of the moving conductive module 11 may also be aligned with each other. Preferably, the movable end member 1 and the stationary end member 2 may both extend in the vertical direction (as shown in fig. 1 to 3), and the rod-shaped body 31 may also extend in the vertical direction. In particular, the live conducting module 11 and the stationary end arcing contact 21 may also extend in a vertical direction (as shown in fig. 1 to 3).

As shown in fig. 1, the arc chute system 100 may further include a current transformer 4 connected to a sidewall of the housing H from the outside of the housing H and communicating with the inside of the housing H. The moving end member 1 may be fixedly connected to the current transformer 4 through the first connecting conductor 41. Furthermore, the arc chute system 100 may further include a bus bar disconnector 5 connected to a sidewall of the housing H from an outside of the housing H and communicating with an inside of the housing H. The stationary end part 2 may be fixedly connected to the busbar disconnector 5 by means of a second connecting conductor 51.

By means of the arrangement mode of the arc extinguish chamber system 100, the movable end part 1 and the fixed end part 2 are easily centered in the arc extinguish chamber installation process, and the movable end part and the fixed end part are convenient to replace. In addition, by means of the fixing of the insulation connecting piece 3, the first connecting conductor 41 and the second connecting conductor 51 to the movable end part 1 and the fixed end part 2, the stress of the nozzle in the opening and closing process can be reduced, and the service life of the parts is prolonged. Also, with the above arrangement of the arc chute system 100, it is also possible to reduce the number of insulating parts (i.e., only the insulating connector 3 needs to be manufactured as an insulating part), reduce the probability of a discharge accident, and reduce the assembly work.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc chute system, characterized in that the arc chute system (100) comprises:

a housing (H) having a side wall and opposing top and bottom ends; and

an arc chute assembly (10), the arc chute assembly (10) comprising:

a moving end member (1) and a stationary end member (2), the moving end member (1) and the stationary end member (2) being fixed inside the housing (H), wherein the moving end member (1) is a hollow cylindrical body and comprises an open first end and an open second end opposite to the first end of the moving end member (1), and wherein the stationary end member (2) is a hollow cylindrical body and comprises an open first end and a second end opposite to the first end of the stationary end member (2); and

an insulating connector (3), the insulating connector (3) being configured to connect the moving end part (1) and the stationary end part (2).

2. Arc chute system according to claim 1, characterized in that the arc chute system (100) further comprises:

a stationary end arcing contact (21), said stationary end arcing contact (21) being arranged inside said stationary end part (2) and at said first end of said stationary end part (2);

a moving conducting module (11), said moving conducting module (11) comprising a tie rod (111) and a moving end arcing contact (112) at the end of said tie rod (111), wherein said moving conducting module (11) is configured to be partly extendable from the interior of said moving end member (1) via said second end of said moving end member (1) to abut said moving end arcing contact (112) to said stationary end arcing contact (21), and to be retractable into the interior of said moving end member (1) via said second end of said moving end member (1) to disengage said moving end arcing contact (112) from said stationary end arcing contact (21).

3. Arc extinguishing chamber system according to claim 2, characterized in that the moving conducting module (11) further comprises a spout member (113) sleeved and fixed on the end of the tie rod (111), wherein the portion of the moving end arcing contact (112) in contact with the stationary end arcing contact (21) is surrounded by the spout member (113) when the moving end arcing contact (112) abuts to the stationary end arcing contact (21).

4. Arc extinguishing chamber system according to claim 3, characterized in that the spout member (113) comprises a tubular guiding portion (1131) projecting outside the moving end arcing contact (112) in the extension direction of the tie rod (111) for receiving and guiding the stationary end arcing contact (21).

5. Arc chute system according to claim 1, characterized in that the insulating connector (3) is configured to connect the second end of the moving end part (1) and the first end of the stationary end part (2).

6. Arc chute system according to any one of claims 1 to 5, characterized in that the insulating connection (3) comprises a rod-like body (31) and two connection portions (32) projecting parallel to each other from opposite ends of the rod-like body (31), wherein one of the two connection portions (32) is connected to one of the moving end part (1) and the stationary end part (2) and the other of the two connection portions (32) is connected to the other of the moving end part (1) and the stationary end part (2).

7. Arc chute system according to claim 6, characterized in that one or more connection pins (33) are provided on each of the two connection portions (32) to snap-fit with a corresponding number of connection holes provided on the moving end part (1) or the stationary end part (2).

8. Arc chute system according to claim 1, characterized in that the second end of the moving end part (1) and the first end of the stationary end part (2) are aligned with each other.

9. An arc extinguishing chamber system according to claim 1, characterized in that the arc extinguishing chamber system (100) further comprises a current transformer (4) connected from the outside of the housing (H) to the side wall of the housing (H) and communicating with the inside of the housing (H), the current transformer (4) and the moving end part (1) being fixedly connected to each other by a first connecting conductor (41).

10. An arc extinguishing chamber system according to claim 1, characterized in that the arc extinguishing chamber system (100) further comprises a busbar disconnector (5) connected from outside the housing (H) to the side wall of the housing (H) and communicating with the inside of the housing (H), the busbar disconnector (5) and the stationary end part (2) being fixedly connected to each other by means of a second connecting conductor (51).