KR200489518Y1 - Vacuum interrupter - Google Patents

Abstract

The present invention is characterized in that, when producing a vacuum interrupter, an aligning member for aligning between an insulating container, a moving side seal cup and a fixed side seal cup is separately provided so as to be located at a more accurate position when the insulating container is connected to the moving side seal cup or the fixed side seal cup So that the position of the insulating container, the moving side seal cup, and the fixed side seal cup can be precisely adjusted without using a separate aligning jig.

Description

Vacuum Interrupter {VACUUM INTERRUPTER}

The present invention relates to a vacuum interrupter, and more particularly, to a vacuum interrupter in which an alignment member is provided in a vacuum interrupter to simplify the production process of a vacuum interrupter.

Generally, a breaker is an electric protective device that protects a load device and a line from such a fault current in the event of a short circuit or a ground fault which may occur in an electric circuit.

The circuit breaker is composed of an inflow circuit breaker using oil as a soot medium according to the SOHO medium, a gas circuit breaker using an inert gas sulfur hexafluoride (SF6) gas, an air circuit breaker using air as a soot medium, And vacuum breakers used.

Currently, most electric power equipment products use arc fluoride and sulfur hexafluoride gas with excellent insulation performance as insulating medium. However, the greenhouse effect of sulfur hexafluoride gas is 23900 times that of carbon dioxide, which is designated as global warming gas by the Kyoto Protocol and is being regulated worldwide. In Korea, environmentally friendly electric power equipment products that can substitute for sulfur hexafluoride gas are being actively developed. Demand for vacuum interrupters is rapidly increasing as one of such environment friendly electric power equipment products.

Vacuum circuit breaker is a device that protects circuits and equipment by quickly isolating the circuit by extinguishing arc generated in case of normal load switching and fault current interruption in a vacuum container. The key part that interrupts the current in the vacuum circuit breaker is a vacuum interrupter .

FIG. 1 is a schematic block diagram of a vacuum interrupter provided in a conventional vacuum interrupter, and FIG. 2 is a schematic diagram illustrating a state in which a vacuum interrupter provided in a conventional vacuum interrupter is fitted with an assembly fixture.

1 and 2, the conventional vacuum interrupter has a fixed side cup 12, a movable side side cup 15, a fixed side side cup 12, and a movable side side cup 15 for mechanical strength and vacuum tightness maintenance ), A contact shield 20 for preventing the diffusion of metal vapor generated when the vacuum circuit breaker is cut off, an insulating container 11 (for example, A stationary contact 14 for electrically connecting or disconnecting a current in accordance with movement of the movable electrode 16 and the fixed electrode 13 in a steady state, A fixed electrode 13 having a screw tap structure for energizing a rated current and capable of being fixed to a power device, a movable electrode 16 which is brought into contact with or separated from the fixed electrode 13, While maintaining the vacuum inside the interrupter, A bellows 18 for enabling linear reciprocating motion, a bellows shield 19 for protecting the bellows 18 from metal melts generated during current interruption, and the like.

At this time, a filler for connecting the components is inserted between the components constituting the vacuum interrupter, and the vacuum interrupter is completed by melting the filler at a high temperature in the vacuum furnace and connecting the components.

However, when manufacturing the conventional vacuum interrupter as described above, the alignment jig 23 is used to fix the insulating container 11, the movable side cup 117 and the fixed side seal cup 111, and braze welding is performed However, since the aligning jig 23 must be disassembled again after completion of the braze welding, the working process is complicated and the working time is long.

Further, after disposing the alignment jig 23 and disassembling it, there is a problem that it must be stored in a separate place.

In addition, when the braze is welded, the aligning jig 23 is connected to other parts, and a large number of defective parts are produced.

The present invention relates to a vacuum interrupter, and more particularly, to a vacuum interrupter in which an alignment member is provided in a vacuum interrupter to simplify the production process of a vacuum interrupter.

The object of the present invention is to provide a method of manufacturing a semiconductor device, which comprises an insulating container, a fixed-side solid cup which is fastened to the upper portion of the insulating container and through which the fixed electrode penetrates, and a vacuum The interrupter is provided with an aligning member between the insulating container and the movable side seal cup and between the insulated container and the fixed side seal cup to align the connection position of the insulating container with the movable side seal cup and the fixed side seal cup. A vacuum interrupter is provided.

The aligning member may have a ring shape and may include a body portion having an outer circumferential surface in close contact with an inner circumferential surface of the movable side seal cup or the fixed side seal cup to align the positions of the movable side seal or the fixed side seal; A protrusion formed to protrude downward from the main body and having an outer circumferential surface in close contact with an inner circumferential surface of the insulating container to align the position of the insulating container; And a side portion protruding outward from the main body portion and positioned so that the insulating container and the movable side seal or the insulating container and the fixed side seal are in close contact with each other.

And the lower surface of the protrusion is rounded.

And the width of the body in the horizontal direction is longer than the width of the projection in the horizontal direction.

And the outer end of the side portion is located at a predetermined distance inward from the outer end of the insulating container when the aligning member is in close contact with the insulating container.

And the space portion is formed in the main body portion so that a filler for welding is inserted between the main body portion and the movable side seal cup or the fixed side seal cup when the main side seal portion or the fixed side seal portion is placed in close contact with each other .

Further, the space portion is opened on the upper side.

The insulating container may be made of a ceramic material.

And the alignment member is an oxygen-free copper material.

As described above, the vacuum interrupter of the present invention is provided with an aligning member for aligning between the insulating container, the movable side cup and the fixed side seal cup separately during production of the vacuum interrupter, So that the position of the insulating container, the moving-side seal cup, and the fixed-side seal cup can be precisely adjusted without using a separate aligning jig.

In addition, since a separate alignment fixture is not used, the time required for installation and disassembly of the alignment fixture is not required in the production of the vacuum interrupter, and the production time is shortened.

In addition, since an alignment jig is not used, the production process is simplified.

Further, by using an alignment fixture, it is possible to prevent the alignment fixture from being welded to other components during braze welding, and to improve the quality of the produced vacuum interrupter.

1 is a schematic view showing a vacuum interrupter provided in a conventional vacuum circuit breaker;
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum interrupter and a vacuum interrupter.
3 is a plan view of a vacuum interrupter according to one embodiment of the present invention;
4 is a schematic view showing a state in which an alignment member is provided in a vacuum interrupter according to an embodiment of the present invention;
5 is a perspective view showing an alignment member provided in a vacuum interrupter according to an embodiment of the present invention;
6 is a cross-sectional perspective view of an alignment member according to one embodiment of the present invention;
7 is a cross-sectional view of an alignment member according to one embodiment of the present invention;
8A is a cross-sectional perspective view of an alignment member according to another embodiment of the present invention;
8B is a cross-sectional view of an alignment member according to another embodiment of the present invention;
FIG. 8C is a partially enlarged view showing a state in which the fixed-side seal cup and the insulating container are placed in close contact with the alignment member according to another embodiment of the present invention; FIG.
9A is a cross-sectional perspective view of an alignment member according to another embodiment of the present invention;
9B is a cross-sectional view of an alignment member according to another embodiment of the present invention;
Fig. 9c is a partially enlarged view showing a state in which the fixed-side seals and the insulating container are placed in close contact with the alignment member according to another embodiment of the present invention; Fig.

Hereinafter, a vacuum interrupter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a plan view of a vacuum interrupter according to an embodiment of the present invention, FIG. 4 is a schematic diagram showing a state in which an aligning member is provided in a vacuum interrupter according to an embodiment of the present invention, FIG. 6 is a cross-sectional perspective view of an alignment member according to an embodiment of the present invention, and FIG. 7 is a cross-sectional perspective view of an alignment member according to an embodiment of the present invention. Fig.

8A is a cross-sectional perspective view of the alignment member according to another embodiment of the present invention, FIG. 8B is a cross-sectional view of the alignment member according to another embodiment of the present invention, FIG. 8C is a cross- Fig. 6 is a partially enlarged view showing a state in which the fixed-side thread cup and the insulating container are placed in close contact with the member;

9A is a cross-sectional perspective view of an alignment member according to another embodiment of the present invention, FIG. 9B is a cross-sectional view of an alignment member according to another embodiment of the present invention, FIG. 9C is a cross- FIG. 5 is a partially enlarged view showing a state where the fixed-side seal and the insulating container are closely attached to the alignment member according to FIG.

3 to 4, the vacuum interrupter 100 according to the present invention has a fixed side cup 111, a movable side cup 117 and a fixed side cup 111 for mechanical strength and vacuum hermetic sealing, An insulating container 110 made of ceramic or the like for ensuring insulation performance, and a contact shield 123 for preventing diffusion of metal vapor generated in a cut-off state of the vacuum circuit breaker, A central shield 125 which protects the insulating container 110 from metal vapor generated when the vacuum circuit breaker is in a cut-off state, and an open / close function of the vacuum circuit breaker, A stationary contact 115 and a movable contact 121 for separating and energizing a current, a fixed electrode 113 having a screw tap structure for transmitting a rated current and fixed to the power device, Separate operation A bellows 127 for allowing the movable electrode 119 to reciprocate linearly while maintaining a vacuum inside the vacuum interrupter 100 and a bellows 127 for removing metal melt generated during current interruption, And a bellows shield 129 for protecting the bellows shield 129 and the like.

At this time, between the insulating container 110 and the movable side seal cup 117 and between the insulating container 110 and the fixed side seal cup 111, the insulating container 110, the movable side seal cup 117, There is provided an alignment member 200 that aligns the respective components so as to restrict movement in a state where the respective components are positioned or positioned at the time of the connection of the fixed side seal cups 111. [

The alignment member 200 may be made of oxygen-free copper or the like and uses oxygen-free copper to prevent the insulation container 110 from being damaged by thermal expansion during braze welding for connection of the components.

When the vacuum interrupter 100 is assembled, the fixed side cup 111 is connected to the fixed electrode 113, and then the insulating container 110 is placed on the fixed side cup 111. Then, the movable side cup 117 and the movable electrode 119 are placed on the upper end of the insulating container 110, and then the braze welding operation is performed in a vacuum furnace. The insulating container 110, The fixed side cup 111 and the movable side side cup 117 can be easily separated from each other by a simple structure by using the alignment member 200 between the fixed side seal cup 117 and the fixed side seal cup 111, From moving from the center of the insulating vessel 110 to another position.

5 to 7, the alignment member 200 includes a main body 210, a protrusion 220, and a side surface 230. [

When the movable side seal cup 117 is placed on the alignment member 200 or the alignment member 200 is placed on the fixed side seal cup 111, Is brought into close contact with the inner circumferential surface of the movable side cup (117) or the fixed side cup (111) to align the positions of the movable side cup (117) or the fixed side cup (111) .

That is, the main body 210 is configured to align the positions of the movable side cups 117 and the fixed side cups 111.

When the aligning member 200 is placed on the insulating container 110, the outer circumferential surface of the aligning member 200 is closely contacted with the inner circumferential surface of the insulating container 110, Thereby aligning the position of the insulating container 110.

The lower surface of the protrusion 220 is formed to be rounded by 1 mm or more so that when the alignment member 200 is placed on the insulation container 110, the protrusion 220 and the insulation container 110, The insulating vessel 110 is prevented from being easily broken and the insulating performance of the insulating vessel 110 is prevented from deteriorating due to breakage.

The width of the main body 210 in the horizontal direction is longer than the width of the protrusions 220 in the horizontal direction so that the movable side seal cup 117 or the fixed side seal cup 111 is inserted into the insulator 110 And is located at a position spaced a predetermined distance from the side surface.
Here, the outer diameter D1 of the main body 210 may be longer than the outer diameter D2 of the protrusion 220.

The outer end of the side portion 230 constituting the aligning member 200 may be positioned at a predetermined distance inward from the outer end of the insulating container 110 when the aligning member 200 is in close contact with the insulating container 110. [ Away from each other.

That is, the dimension is adjusted so that one end of the side portion 230 does not protrude beyond the outer surface of the insulating container 110.

The side part 230 is formed to protrude to the outside of the main body 210 so that the aligning member 200 is placed on the insulating container 110 and then the movable side seal cup 117 is lifted. And one side of the alignment member 200 are positioned in contact with the side surface portion 230.

At this time, a washer-shaped filler is inserted between the side portion 230 and the insulating container 110, the side portion 230, and the movable side seal cup 117, so that the washer-shaped filler melts when the braze is welded in the vacuum furnace The movable side cup 117 and the insulating container 110 are interconnected together with the side portion 230.

A washer-shaped filler is inserted between the side surface portion 230 and the insulating container 110, the side surface portion 230 and the fixed side seal cup 111 so that the fixed side seal cup 111 and the insulating container 110 are inserted, Are connected to each other through the side portion 230.

Therefore, in the present invention, after the aligning member 200 is raised to the fixed side cup 111, the insulating container 110 is lifted or the aligning member 200 is lifted up to the insulating container 110, The inner circumferential surface of the insulating container 110 is brought into close contact with the protruding portion 220 of the aligning member 200 so that the position of the insulating container 110 is aligned, The inner circumferential surfaces of the side cups 117 or the fixed side cups 111 adhere to the outer circumferential surface of the main body 210 and the positions of the movable side cups 117 or the fixed side cups 111 are aligned, The washer-shaped fillers located between the insulating container 110 and the movable side cups 117 and the fixed side cups 111 are melted and welded to each other.

8A to 9C, the alignment member 300 included in the vacuum interrupter 100 according to another embodiment of the present invention includes the body portions 310 and 410, The body portions 310 and 410 are further formed with space portions 340 and 440 to allow the filler to be welded to be welded when welding the braze.

At this time, the space portions 340 and 440 may be formed to open on the upper surface, and may be formed on the inner side of the body portion 410.

Therefore, when the pillars are injected into the space portions 340 and 440, the ring shape is formed. When the braze welding is performed using the ring-shaped filler, the manufacturing cost is reduced.

The vacuum interrupter 100 according to the present invention having the above-described structure is provided with the alignment members 200, 300, and 300 between the insulating container 110, the movable side cup 117 and the fixed side seal cup 111 during the production of the vacuum interrupter 100, The movement of each component is limited when the insulating container 110 is connected to the movable side cup 117 or the fixed side cup 111 so that the insulating container 110 The position of the movable side thread cup 117 and the fixed side thread cup 111 can be precisely adjusted and there is no movement during welding.

In addition, since no separate alignment fixture is used, the time required for installation and disassembly of the alignment fixture is not required in the production of the vacuum interrupter 100, and the production time is shortened.

In addition, since an alignment jig is not used, the production process is simplified.

Further, by using an alignment fixture, it is possible to prevent the alignment fixture from being welded to other components during braze welding, and to improve the quality of the produced vacuum interrupter 100.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not for the purpose of limitation. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

10: vacuum interrupter 11: insulating container
12: fixed side seal cup 13: fixed electrode
14: stationary contact 15: movable side seal cup
16: movable electrode 17: movable contact
18: Bellows 19: Bellows Shield
20: Contact shield 21: Center shield
23: alignment fixture 100: vacuum interrupter
110: Insulation container 111: Fixed side seal cup
113: fixed electrode 115: fixed contact
117: movable side thread cup 119: movable electrode
121: movable contact 123: contact shield
125: center shield 127: bellows
129: Bellows shield 200, 300, 400: Alignment member
210, 310, 410: main body 220, 320, 420:
230, 330, 430: side portions 340, 440:

Claims (7)

A vacuum interrupter comprising: an insulating container; a stationary-side seal cup which is fastened to an upper portion of the insulating container and through which the stationary electrode penetrates; and a movable-side seal cup which is fastened to a lower portion of the insulating container,
And an aligning member for aligning a connecting position between the insulating container and the fixed side seal cup and the movable side seal cup,
The alignment member
Side seal cup or the fixed-side seal cup is in contact with the inner peripheral surface of the movable-side seal cup or the fixed-side seal cup to be positioned inside the movable-side seal cup or the fixed-side seal cup, ;
A protrusion formed to protrude downward from the main body and aligning a position of the insulating container in a state in which the outer circumferential surface is in contact with the inner circumferential surface of the insulating container and is located inside the insulating container; And
A side surface portion protruding outward from the main body portion and the protruding portion and positioned so that the insulating container and the movable side seal cup or the insulated container and the fixed side seal are in close contact with each other;
Lt; / RTI >
Wherein an outer diameter of the main body is longer than an outer diameter of the protrusion,
Wherein an outer end of the side portion is located at a predetermined distance inward from an outer end of the insulating container.
delete delete delete The method according to claim 1,
Wherein a space is formed in the main body part so that a filler for welding is inserted between the main body part and the movable side seal or the fixed side seal when the movable side seal or the fixed side seal is placed in close contact with the main body. Interrupt.
6. The method of claim 5,
Wherein the space portion is opened on the upper side.
The method according to claim 1,
Wherein the alignment member is made of an oxygen-free copper material.

Images