JPH11260211A - High-speed switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high-speed switch whose structure can be simplified and miniaturized. SOLUTION: A high-speed switch comprises a frame 30, a plurality of vacuum switch valves 37 disposed parallel to each other, an insulating connecting member 48 having movable energizing shafts 40 connected thereto, an operating shaft (50) connected to the insulating connecting member 48, a repulsive plate 52 fixed to the operating shaft 50, a pair of repulsive coils 53, 54 for generating repulsion between the repulsive plate 52 and the same so as to move the operating shaft (50), a first disk spring 56 for holding the vacuum switch valves 37 in a closing or opening state, and an interval adjusting mechanism 46 for adsorbing variations in distance between a fixed electrode 42 and a movable electrode 43. Consequently, it is possible to simplify and miniaturize the structure, and furthermore to reduce the number of item parts so as to reduce the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-speed switch having a vacuum switch tube, and more particularly to a high-speed switch having a simplified structure by integrally connecting three-phase vacuum switch tubes.

[0002]

2. Description of the Related Art FIG. 9 is a side view showing a contact opening state of a conventional high-speed switch disclosed in, for example, Japanese Patent Application Laid-Open No. 5-1900063. FIG. 10 is a side view showing a closed state of the conventional high-speed switch. 9 and 10, the frame 1
Insulators 2 and 3 are protruded from one side surface. One end of a plate-shaped fixed terminal conductor 4 and one end of a movable terminal conductor 5 whose main surfaces are arranged in parallel are fixed to these insulators 2 and 3, respectively. Fixed-side terminal conductor 4 and movable-side terminal conductor 5
Are electrically connected to an external device (not shown) by a conductor (not shown). In the middle part of the fixed-side terminal conductor 4,
An annular contact ring 6 is inserted and fixed. Similarly, a contact ring 7 is inserted and fixed to an intermediate portion of the movable terminal conductor 5.

[0003] A vacuum switch tube 8 is arranged between the movable terminal conductor 5 and the fixed terminal conductor 4. The vacuum switch tube 8 is connected to the vacuum vessel 9 whose inside is evacuated, the fixed electrode 10 and the movable electrode 11, which are a pair of electrodes housed in the vacuum vessel 9, and the fixed electrode 10 and the movable electrode 11, respectively. It comprises a fixed-side energizing shaft 14 and a movable-side energizing shaft 15 movably disposed with respect to the vacuum vessel 9.

The vacuum vessel 9 comprises an insulating cylinder 17 and an insulating cylinder 17.
End plates 18 and 19 provided at both ends of the
And bellows 20 and 21 connected to each other. The bellows 20 arranged on the upper side of FIG. 9 is connected to one end of the end plate 18 in a closed state, and the other side is connected to the fixed-side energized shaft 14 in a closed state. On the other hand, the bellows 21 arranged on the lower side of FIG. The vacuum vessel 9 is supported from the frame 1 by an insulating member (not shown).

The fixed-side energizing shaft 14 of the vacuum switch tube 8 is
It is inserted into the contact ring 6 and slidably supported while being electrically connected. The fixed side conducting shaft 14 has a flange 14a.
Is brazed. Fixed terminal conductor 4 and flange 1
A wipe spring 23 is arranged between the wiper spring 4a and the wiper spring 4a. On the other hand, the movable-side conducting shaft 15 is inserted into the contact ring 7 and slidably supported while being electrically connected. The end of the movable-side energizing shaft 15 opposite to the movable electrode 11 is connected to the operation mechanism 25. The operation mechanism 25 further includes the fixed electrode 10.
And a holding mechanism (not shown) for keeping the movable electrode 11 in a closed state and an open state.

In the thus constructed high-speed switch, when the operating mechanism 25 is operated and the movable energizing shaft 15 is moved upward in FIG. 9, the fixed electrode 10 and the movable electrode 11 come into contact with each other and the electrode is closed. State (FIG. 10). At this time,
The wipe spring 23 contracts by a predetermined length, and a predetermined press-contact force acts between the fixed electrode 10 and the movable electrode 11, whereby the electrode is reliably closed. The closed state is held by a holding mechanism (not shown). On the other hand, when the movable-side energized shaft 15 is moved to the lower side in FIG. This open state is also held by a holding mechanism (not shown). When the high-speed switch configured as described above is used for, for example, a three-phase power line, the three high-speed switches described above are arranged side by side.
5 and a holding mechanism (not shown) were provided for each high-speed switch.

[0007]

In the high-speed switch configured as described above, one operation mechanism 25 and one holding mechanism are required for each vacuum switch tube 8, so that the number of parts is small. And the structure becomes complicated.

[0008] The present invention has been made to solve the above-described problems, and can have a simple structure.
It is an object to obtain a high-speed switch that can be downsized.

[0009]

According to a first aspect of the present invention, there is provided a high-speed switch, comprising: a frame having a first insulating support and a second insulating support; a vacuum container having a vacuum inside; It has a stored fixed electrode and a movable electrode, a fixed conduction axis and a movable conduction axis respectively connected to the fixed electrode and the movable electrode, the fixed conduction axis is supported by the first insulating support portion, and the movable conduction axis is A plurality of vacuum switch tubes which are movably supported by the second insulating support portion and are arranged in parallel with each other, and an insulating connecting member to which each movable energizing shaft of the plurality of vacuum switch tubes is connected. An operation shaft connected to the insulating member and supported by the frame so as to be movable in the opening and closing direction of the vacuum switch tube, a repulsion plate fixed to the operation shaft, and disposed on both sides in the movement direction of the operation shaft with respect to the repulsion plate. And a repulsive force is generated between the Allowed by a pair of repulsion coil in which a plurality of vacuum switch tube moves the operating shaft to open and close,
A first disc spring that is provided between the operation shaft and the frame and holds the vacuum switch tube in a closed state with a predetermined pressure contact force and holds the vacuum switch tube in an open state, and fixing between the plurality of vacuum switch tubes; An interval adjusting mechanism is provided for absorbing variations in the distance between the electrode and the movable electrode to ensure that each vacuum switch tube is in a closed state.

In the high-speed switch according to the present invention, each fixed energizing shaft is movably supported by the first insulating support, and the interval adjusting mechanism is provided between the fixed energizing shaft and the first insulating support. It is an elastic member disposed therebetween.

In the high-speed switch according to the third aspect, each movable energizing shaft is movably connected to the insulating connecting member.
The interval adjusting mechanism is an elastic member provided between each movable energizing shaft and the insulating connection member.

According to a fourth aspect of the present invention, in the high-speed switch, at least a part of the first insulating support portion or the fixed energizing shaft is made of an elastically deformable material.

According to a fifth aspect of the present invention, in the high-speed switch, at least a part of the insulated connecting member or the movable energizing shaft is made of a material which can be elastically deformed.

In the high-speed switch according to the sixth aspect, the number of the vacuum switch tubes is three, and one of the vacuum switch tubes has a distance between the fixed electrode and the movable electrode which is predetermined by the other two vacuum switch tubes. The fixed current-carrying shaft is movably connected to the first insulating support, and an elastic member is disposed between the fixed current-carrying shaft and the first insulating support. The connection portions of each of the vacuum switch tubes with each of the movable energizing shafts and the operation shafts are swingable, and the interval adjusting mechanism is composed of an elastic member and an insulating connecting member.

In the high-speed switch according to the present invention, the number of the vacuum switch tubes is three and the distances between the vacuum switch tubes are substantially equal to each other. It is an insulating connection member.

In the high-speed switch according to the eighth aspect, the elastic member is a second disc spring.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a front view showing an open state in which a part of a high-speed switch according to the present invention is in cross section. FIG. 2 is a front view showing the closed state. On the front surface of the frame body 30, a plate-like first insulating support portion 31 and a second insulating support portion made of an insulating material and arranged side by side at predetermined intervals like a shelf at the upper part of FIG. 32 are provided. In the lower part of FIG. 1, a plate-like support member 33 projecting like a shelf at a predetermined interval is provided.
34 and 35 are provided.

Between the first insulating support 31 and the second insulating support 32, three vacuum switch tubes 37 are arranged in parallel with each other. Three vacuum switch tubes 37 are provided in the first insulating support 31 and the second insulating support 32.
Cylindrical sliding contacts 36 and 38 made of a conductive material are inserted and fixed at positions corresponding to. The vacuum switch tube 37 has a fixed current-carrying shaft 39, a movable current-carrying shaft 40, and a vacuum vessel 41 as in the conventional case. Fixed conducting shaft 39
The fixed electrode 42 is formed at the tip of the. On the other hand, a movable electrode 43 is formed at the tip of the movable energizing shaft 40. Each fixed electrode 42 and movable electrode 43 are arranged apart from each other by a predetermined distance. A bellows 44 is provided between the movable energizing shaft 40 and the vacuum vessel 41 in the same manner as in the related art, and is movable. On the other hand, the fixed electrode 42 is inserted and fixed to the end plate of the vacuum vessel 41. Vacuum container 4
The inside of 1 is evacuated.

Each of the vacuum switch tubes 37 has a fixed energizing shaft 39 penetrating through a sliding contact 36 provided on the first insulating support portion 31. Fixed energized shaft 39 and sliding contact 3
8 is electrically connected and slidably in contact. The fixed energizing shaft 39 is provided with two flanges 39a and 39b so as to sandwich the sliding contact 38. Flange 3
A second disc spring 46, which is an elastic member, is provided between 9a and the first insulating support portion 31. On the other hand, the vacuum switch tube 37 connects the movable energizing shaft 40 to the second insulating support portion 32.
, And penetrates through the sliding contact 38. The movable conducting shaft 40 and the sliding contact 38 are electrically connected and slidably contact with each other. Sliding contact 36 and sliding contact 38
Are electrically connected to an external device (not shown) by a conductor (not shown). And each vacuum switch tube 3
7, different phases of currents are supplied to each of the switches 7 to form a three-phase integrated high-speed switch as a whole.

Each of the movable conducting shafts 40 penetrating the second insulating support portion 32 is connected at the end opposite to the movable electrode 43 to a connecting insulating member 48 made of an insulating material. One end of an operation shaft 50 is connected to the connection insulating member 48. The operation shaft 50 passes through the support members 33 and 34 and is movably supported in the opening and closing direction of the vacuum switch tube 37. Operation shaft 5 at a portion between support member 33 and support member 34
At 0, a disc-shaped repulsion plate 52 is fixed. An annular repulsion coil 53 and a repulsion coil 54 are fixed to the support member 33 and the support member 34 so as to face the repulsion plate 52, respectively. The repulsion coil 53 and the repulsion coil 54 are electrically connected to an operation power supply (not shown). The other end of the operation shaft 50 is connected to the center of the first disc spring 56. The outer peripheral portion of the first disc spring 56 is supported by the support member 35.

The operation of the high-speed switch configured as described above will be described. FIG. 1 shows an open state of the vacuum switch tube 37. In this state, the first disc spring 56 constitutes a holding mechanism for holding the fixed electrode 42 and the movable electrode 43 in an open state at a predetermined interval. I have. When an abrupt current flows from the operating power supply (not shown) to the repulsion coil 54 from this open state, a current is induced in the repulsion plate 52 to generate a repulsive force with the repulsion coil 54. This repulsive force causes the operation shaft 50 to move upward in FIG. The first disc spring 56 generates a reverse force past an intermediate point where it is substantially planar. The operating shaft 50 is further moved upward in FIG. 1 by this force. Then, each vacuum switch tube 37 is in a closed state. Note that the current flowing through the repulsion coil 54 is pulse-like, and the subsequent closing of the electrode is maintained by the first disc spring 56.

When each vacuum switch tube 37 is closed, each second disc spring 46 contracts slightly. The distance between the fixed electrode 42 and the movable electrode 43 has a slight variation due to uneven electrode wear and an error during assembly. However, this variation is absorbed by the second disc spring 46, and the respective fixed electrodes 42 and the movable electrodes 43 are surely joined by substantially the same predetermined pressing force. That is,
Each second disc spring 46 absorbs a variation in the distance between the electrodes between the vacuum switch tubes 37, and
Constitutes an interval adjusting mechanism for ensuring that the electrodes are in a closed state. The fixed electrodes 42 and the movable electrodes 43 come into contact with each other, the three second disc springs 46 contract, and the second disc springs 46
2 when the sum of the restoring forces of the first and second disc springs 56 is balanced.

When a sharp current is applied to the repulsion coil 53 from the closed state in FIG. 2, a current is induced in the repulsion plate 52 to generate a repulsive force with the repulsion coil 53. This repulsive force causes the operation shaft 50 to move downward in FIG. Then, the state returns to the open state of FIG.

In the high-speed switch configured as described above, each of the three vacuum switch tubes 37 is
0 is connected to the coupling insulating member 48, and one set of repulsion coils 5
Opening and closing operations are performed at 3, 54, and furthermore, the closed state and the opened state are held by one first disc spring 56. Therefore, compared with the conventional case where three high-speed switches are provided in parallel,
The size can be reduced and the mounting space can be reduced. Further, the number of parts can be reduced and the cost can be reduced.

In this embodiment, three vacuum switch tubes 37 are provided integrally to form a three-phase integrated high-speed switch. However, the number of vacuum switch tubes 37 is further increased to four. Alternatively, a four-phase or five-phase high-speed switch may be provided by integrally providing five vacuum switch tubes 37.

Embodiment 2 FIG. FIG. 3 is a front view showing another example of the high-speed switch according to the present invention, showing an open state in which a part is shown in cross section. In the present embodiment, the fixed energizing shaft 39 of each vacuum switch tube 37 is inserted and fixed to the first insulating support portion 31. On the other hand, one end of the movable energizing shaft 40 of each vacuum switch tube 37 is movably connected through a connection insulating member 48. And each movable energizing shaft 40
Is further provided with two flanges 40a and 40b so as to sandwich the connection insulating member 48. Each flange 40a
A second disc spring 62, which is an elastic member, is disposed between the first insulating member 48 and the connecting insulating member 48. The fixed energizing shaft 39 and the sliding contact 38 are electrically connected to an external device (not shown) by a conductor (not shown). Then, currents of different phases are supplied to the respective vacuum switch tubes 37, so that a three-phase integrated high-speed switch is provided as a whole. Other configurations are the same as those of the first embodiment.

In the thus constructed high-speed switch, when each of the vacuum switch tubes 37 is closed, each of the second disc springs 62 is slightly contracted, and each of the vacuum switch tubes 3 is closed.
Absorbs variations in the distance between the electrodes 7. Then, the fixed electrode 42 and the movable electrode 43 of each vacuum switch tube 37 are securely joined by a pressing force that satisfies a predetermined pressing force. That is, each second disc spring 62 constitutes an interval adjusting mechanism that absorbs a variation in the distance between the electrodes between the vacuum switch tubes 37 and ensures that each vacuum switch tube 37 is in a closed state. doing. In the high-speed switch configured as described above, the number of components can be reduced, and variations can be reliably absorbed.

Embodiment 3 FIG. 4 is a front view showing another example of the high-speed switch according to the present invention, showing an open state in which a part is shown in cross section. In the present embodiment, the first insulating support portion 58 is composed of a plurality of top plates 58a made of an insulating material and elastic members 58b provided between the top plates 58a. Fixed energizing shaft 39 of the vacuum switch tube 37
Are fixedly inserted into the top plate 58a. Fixed conducting shaft 39
The sliding contact 38 is electrically connected to an external device (not shown) by a conductor (not shown). Then, currents of different phases are supplied to the respective vacuum switch tubes 37, so that a three-phase integrated high-speed switch is formed as a whole. Other configurations are the same as those of the first embodiment.

In the high-speed switch configured as described above, when each vacuum switch tube 37 is pressed by the first disc spring 56 to be in a closed state, the elastic member 58b is bent, and the space between the vacuum switch tubes 37 is increased. Absorbs variations in distance between electrodes. Then, the fixed electrode 42 and the movable electrode 43 of each vacuum switch tube 37 are securely joined by a pressing force that satisfies a predetermined pressing force. That is, in the present embodiment, a part of the first insulating support portion 58 is made of an elastically deformable material to constitute the interval adjusting mechanism. In the high-speed switch configured as described above, the number of components can be reduced and the cost can be reduced.

In the present embodiment, the elastic member 5
Although 8b is provided on the first insulating support portion 58 that supports each of the fixed energized shafts 39, the elastic member may be provided at an intermediate portion of the fixed energized shaft 39. Thereby, the fixed energized shaft 39
However, the same effect can be obtained if the vacuum switch tube 37 can be expanded and contracted with a predetermined elasticity in the opening and closing direction. However, the elastic member in this case needs to be made of a conductive material.

Embodiment 4 FIG. FIG. 5 is a front view of another example of the high-speed switch according to the present invention, showing an open state in which a part is in section. In the present embodiment, the fixed energizing shaft 39 of each vacuum switch tube 37 is inserted and fixed to the first insulating support portion 31. The connecting insulating member 60 includes a plurality of connecting shafts 60a made of an insulating material and the respective connecting shafts 6a.
0a, and an elastic member 60b provided between the two. Further, an elastic member 40c is provided at an intermediate portion of the movable energizing shaft 40 of the vacuum switch tube 37 in the center of FIG. The movable current-carrying shaft 40 is provided with an elastic member 40c, and can be extended and contracted with a predetermined elasticity in the opening and closing direction of the vacuum switch tube 37. Other configurations are the same as those of the second embodiment.

In the high-speed switch configured as described above, when each of the vacuum switch tubes 37 is closed, the elastic member 60b is bent, and the elastic member 40c is further contracted. Absorbs distance variations. Then, the fixed electrode 42 and the movable electrode 43 of each vacuum switch tube 37 are securely joined by a pressing force that satisfies a predetermined pressing force. That is, in the present embodiment,
A part of the coupling insulating member 60 or the movable energizing shaft 40 is made of an elastically deformable material to constitute an interval adjusting mechanism. In the high-speed switch configured as described above, the number of components can be reduced and the cost can be reduced.

In this embodiment, the elastic member 60b is used as a part of the coupling insulating member 60, and the elastic member 40c is provided on the movable movable shaft 40 in the center of FIG. An elastic member 40c may be provided on the movable energizing shaft 40. In that case, it goes without saying that the same effect can be obtained even if the elastic member 60b is not provided in the connection insulating member 60.

Embodiment 5 FIG. 6 is a front view showing another example of the high-speed switch according to the present invention, showing an open state in which a part is shown in cross section. In the present embodiment, the connection insulating member 6
Reference numeral 4 denotes a universal joint in which a connection portion between each of the movable energizing shafts 40 and the operation shaft 50 is swingable.
Then, in the central vacuum switch tube 37 in FIG.
The fixed energizing shaft 39 is slidably inserted into the sliding contact 38. Then, the sliding contact 38 is attached to the fixed energized shaft 39.
And two flanges 39a and 39b are provided so as to sandwich the first insulating support portion 31, and a second disc spring 46 as an elastic member is disposed between the flange 39a and the first insulating support portion 31. Fixed energized shaft 3 of the other two vacuum switch tubes 37
9 is inserted and fixed to the first insulating support portion 31. 6, the distance between the fixed electrode 42 and the movable electrode 43 is shorter than the other two vacuum switch tubes 37 by a predetermined distance. Other configurations are the same as those of the first embodiment.

In the thus constructed high-speed switch, when the operating shaft 50 moves upward in FIG.
, The vacuum switch tube 37 at the center is closed, and then either the left or right vacuum switch tube 37 is closed. Connection insulating member 6
4, the connection portion with each movable energizing shaft 40 is swingable, and is further moved upward in FIG. 6 by the first disc spring 56, so that the remaining vacuum switch tube 37 is also closed. . Then, the fixed electrode 42 and the movable electrode 43 of each vacuum switch tube 37 are securely joined by a pressing force that satisfies a predetermined pressing force. Therefore, the number of parts can be reduced, and the variation can be reliably absorbed.

The vacuum switch tube 37 provided with the second disc spring 46 and shortening the distance between the fixed electrode 42 and the movable electrode 43 by a predetermined distance from the other two vacuum switch tubes 37 is not necessarily illustrated. It is not necessary to be the central one of 6,
The same effect can be obtained with either the left or right side in FIG.

Embodiment 6 FIG. FIG. 7 is a front view showing another example of the high-speed switch according to the present invention, showing an open state in which a part is shown in cross section. FIG. 8 is a top view. In the present embodiment, the three vacuum switch tubes 37 are arranged so as to be equal to each other in a plane perpendicular to the opening / closing direction. The connection insulating member 64 is a disc-shaped universal joint in which a connection portion between each of the movable energizing shafts 40 and the operation shaft 50 is swingable. On the other hand, in each vacuum switch tube 37, the fixed energizing shaft 39 is inserted and fixed to the first insulating support portion 31. Other configurations are the same as those of the fifth embodiment.

In the thus constructed high-speed switch, when the operating shaft 50 moves upward in FIG. 7, the connecting insulating member 64 becomes parallel to a plane including the lower end point of each movable energizing shaft 40. . And three vacuum switch tubes 3
All 7 are reliably closed. In the high-speed switch configured as described above, the number of parts can be further reduced and the cost can be reduced.

[0039]

According to the first aspect of the present invention, there is provided a high-speed switch, comprising a frame having a first insulating support portion and a second insulating support portion, a vacuum container having a vacuum inside, and a fixed member housed in the vacuum container. An electrode and a movable electrode; a fixed current-carrying axis and a movable current-carrying axis connected to the fixed electrode and the movable electrode, respectively; the fixed current-carrying axis is supported by the first insulating support portion; A plurality of vacuum switch tubes supported movably on a movable energizing shaft and arranged in parallel with each other,
An insulating connecting member to which each movable energizing shaft of the plurality of vacuum switch tubes is connected; an operating shaft connected to the connecting insulating member and supported by a frame so as to be movable in the opening and closing direction of the vacuum switch tube; A fixed repulsion plate is arranged on both sides of the operation axis with respect to the repulsion plate in the moving direction of the repulsion plate, and a repulsion force is generated between the repulsion plate and the operation shaft is moved so that a plurality of vacuum switch tubes open and close. A first disc spring provided between the operation shaft and the frame body for holding the vacuum switch tube in a closed state with a predetermined pressure contact force and holding the vacuum switch tube in an open state; And a gap adjusting mechanism for absorbing variations in the distance between the fixed electrode and the movable electrode between the vacuum switch tubes to ensure that each vacuum switch tube is closed.
Therefore, the structure can be simplified and the size can be reduced. Further, the number of parts can be reduced and the cost can be reduced.

In the high-speed switch according to the second aspect, each fixed energizing shaft is movably supported by the first insulating support, and the interval adjusting mechanism is provided between the fixed energizing shaft and the first insulating support. It is an elastic member disposed therebetween. Therefore, the variation in the distance between the electrodes can be reliably absorbed with a simple structure.

In the high-speed switch according to the third aspect, each movable energizing shaft is movably connected to the insulating connecting member.
The interval adjusting mechanism is an elastic member provided between each movable energizing shaft and the insulating connection member. Therefore, the variation in the distance between the electrodes can be reliably absorbed with a simple structure, and the number of components can be further reduced.

According to a fourth aspect of the present invention, in the high-speed switch, at least a part of the first insulating support portion or the fixed energizing shaft is made of an elastically deformable material. Therefore, the number of parts can be further reduced and the cost can be reduced.

According to a fifth aspect of the present invention, in the high-speed switch, at least a part of the insulated connecting member or the movable energizing shaft is made of an elastically deformable material. Therefore, the number of parts can be further reduced and the cost can be reduced.

In the high-speed switch according to the sixth aspect, the number of the vacuum switch tubes is three, and one of the vacuum switch tubes has a distance between the fixed electrode and the movable electrode which is determined by the other two vacuum switch tubes. The fixed current-carrying shaft is movably connected to the first insulating support, and an elastic member is disposed between the fixed current-carrying shaft and the first insulating support. The connection portions of each of the vacuum switch tubes with each of the movable energizing shafts and the operation shafts are swingable, and the interval adjusting mechanism is composed of an elastic member and an insulating connecting member. Therefore, the number of parts can be further reduced and the cost can be reduced.

In the high-speed switch according to the seventh aspect, the number of the vacuum switch tubes is three and the distances between the vacuum switch tubes are substantially equal to each other. It is an insulating connection member. Therefore, the number of parts can be further reduced and the cost can be reduced.

In the high-speed switch according to the eighth aspect, the elastic member is a second disc spring. Therefore, the size can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing an open state in which a part of a high-speed switch of the present invention is a cross section.

FIG. 2 is a front view showing a closed state of the high-speed switch of the present invention.

FIG. 3 is a front view showing an open state with a part of a cross section showing another example of the high-speed switch of the present invention.

FIG. 4 is a front view showing another example of the high-speed switch according to the present invention, showing an open state in which a part is shown in cross section.

FIG. 5 is a front view showing another example of the high-speed switch according to the present invention, showing an open state in which a part is shown in cross section.

FIG. 6 is a front view showing an open state with a partial cross section showing another example of the high-speed switch of the present invention.

FIG. 7 is a front view showing an open state with a partial cross section showing another example of the high-speed switch of the present invention.

FIG. 8 is a top view of the high-speed switch of the present invention.

FIG. 9 is a side view showing an open state of a conventional high-speed switch.

FIG. 10 is a side view showing a closed state of a conventional high-speed switch.

[Explanation of symbols]

30 frame, 31 first insulating support, 32 second insulating support, 37 vacuum switch tube, 39 fixed energizing shaft,
40 movable energizing shaft, 41 vacuum vessel, 42 fixed electrode,
43 movable electrode, 46 second disc spring (elastic member, interval adjusting mechanism), 48 insulating connecting member, 50 operation shaft, 52
Repulsion plate, 53, 54 repulsion coil, 56 first disc spring, 58 first insulating support (interval adjustment mechanism), 60
Insulated connecting member (interval adjusting mechanism), 62 second disc spring (elastic member, interval adjusting mechanism), 64 insulating connecting member (interval adjusting mechanism).

Claims (8)

[Claims] 1. A frame having a first insulating support portion and a second insulating support portion, a vacuum container having a vacuum inside, a fixed electrode and a movable electrode stored in the vacuum container, and the fixed electrode. And a fixed energizing axis and a movable energizing axis respectively connected to the movable electrode, the fixed energizing axis being supported by the first insulating support portion,
And a plurality of vacuum switch tubes supported in a movable manner on the movable insulating shaft by the second insulating support so that the movable conductive shaft is movable, and the movable energizing shafts of the plurality of vacuum switch tubes, respectively. An operating connection shaft connected to the connecting insulating member and supported by the frame so as to be movable in the opening and closing direction of the vacuum switch tube; and a repulsion plate fixed to the operation shaft. A pair of movable shafts disposed on both sides of the operating shaft in the moving direction with respect to the repulsion plate to generate a repulsive force between the repulsion plate and the operating shaft so as to open and close the plurality of vacuum switch tubes; A first disc spring provided between the operation shaft and the frame body to hold the vacuum switch tube in a closed state with a predetermined pressure contact force, and to hold the vacuum switch tube in an open state; The fixed electrode between the plurality of vacuum switch tubes Fast switch being characterized in that a gap adjustment mechanism to allow variation to absorb by the vacuum switch tubes of the distance between the movable electrode is reliably closed state. 2. The method according to claim 1, wherein each of the fixed current-carrying shafts is movably supported by the first insulating support.
2. The high-speed switch according to claim 1, wherein said high-speed switch is an elastic member disposed between each of said fixed energized shafts and said first insulating support. 3. The movable energizing shaft is movably connected to the insulating connecting member, and the gap adjusting mechanism is an elastic member disposed between the movable energizing shaft and the insulating connecting member. The high-speed switch according to claim 1, wherein 4. The distance adjusting mechanism according to claim 1, wherein at least a part of the first insulating support portion or the fixed energizing shaft is made of an elastically deformable material. High speed switch. 5. The high-speed switch according to claim 1, wherein the gap adjusting mechanism is configured such that at least a part of the insulating connecting member or the movable energizing shaft is made of an elastically deformable material. . 6. The vacuum switch tube according to claim 1, wherein one of the vacuum switch tubes has a shorter distance between the fixed electrode and the movable electrode by a predetermined distance than the other two vacuum switch tubes. The fixed energizing shaft is movably connected to the first insulating support portion, and an elastic member is further provided between the fixed energizing shaft and the first insulating support portion. The connection portions of the three vacuum switch tubes with the movable energizing shafts and the operation shafts are swingable, and the interval adjusting mechanism is composed of the elastic member and the insulating connection member. The high-speed switch according to claim 1, wherein: 7. The vacuum switch tubes are three in number and are disposed at substantially equal distances from each other, and the interval adjusting mechanism is configured such that a connection portion between each of the movable energizing shafts and the operation shaft can swing. The high-speed switch according to claim 1, wherein the high-speed switch is the insulating connection member. 8. The high-speed switch according to claim 2, wherein said elastic member is a second disc spring.