JPH0474416U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a sectional structural diagram of a vacuum capacitor according to a first embodiment of the present invention, Fig. 2 is a sectional structural diagram of a vacuum capacitor according to a second embodiment of the present invention, and Fig. 3 is a sectional structural diagram of a vacuum capacitor according to a second embodiment of the present invention. Regarding the vacuum capacitor according to the example,
FIG. 4 relates to a conventional vacuum capacitor; a is a cross-sectional structural diagram thereof, and b is a characteristic diagram thereof. 10,30,40...vacuum filling container, 11,3
6a, 37b, 46...Fixed electrode plate, 12, 36
b, 37a, 47...movable electrode plate, 13, 34,
48...Movable electrode mounting conductor, 17...Insulating guide device, 33...Insulating guide shaft (member), 15
a, 39a, 50a... Vertical lifting screw part, 14,
35, 38, 49... Bellows, 15, 39, 5
0...Position adjustment device, 16, 17, 31, 33,
42, 44...power terminal, 21...corbel conductor plate.

Claims (1)

[Scope of claim for utility model registration] (1) A vacuum container formed by sealing the upper and lower ends of an insulating cylinder with metal end plates, and a cylinder provided in the axial direction of the insulating cylinder inside the metal end plate on the lower end side. A plurality of fixed electrode plates arranged in parallel at regular intervals on a concentric circle, and a plurality of fixed electrode plates inserted and removed at fixed intervals between the fixed electrode plates arranged in parallel with each other at regular intervals. A movable electrode plate made of a cylindrical metal plate; this movable electrode plate is attached to the inner side, and the outer side is movable up and down via a conductive bellows, and the vacuum is maintained, and the movable electrode plate is attached to the metal end plate on the upper end side. a movable electrode mounting conductor; a position adjustment device that is provided on the upper and lower metal end plates; and a power terminal provided in the axial direction of the vacuum container from approximately the center of each of the facing surfaces of the metal end plate on the lower end side and the movable electrode mounting conductor, and engaged with each other to connect the movable electrode mounting conductor. A vacuum capacitor characterized by being equipped with an insulating guide device that guides vertical movement. (2) A vacuum container formed by airtightly closing the opening of a bottomed cylindrical metal case with a disc-shaped insulating plate, and a first power terminal provided at a predetermined location on the outer surface of the metal case. a second power terminal provided through the substantially central portion of the insulating plate; and an insulating terminal attached to the inside of the vacuum container of the second power terminal and extending in the axial direction of the cylinder of the metal case. a guide member; a movable electrode mounting conductor having a cylindrical portion guided by inserting the insulating guide member therein; and a flange-shaped electrode mounting disk provided at one end of the cylindrical portion; and the movable electrode mounting conductor. a first electrically conductive bellows provided to maintain a vacuum between the other end of the cylindrical portion of the conductor and the second power supply terminal; A first fixed electrode plate consisting of a plurality of cylindrical metal plates arranged in parallel at regular intervals; and a first fixed electrode plate mounted on the electrode mounting disk and inserted and removed at regular intervals between the two. a first movable electrode plate made of a cylindrical metal plate; and a plurality of discs arranged in parallel on the outer periphery of the cylindrical portion of the movable electrode mounting conductor in a direction perpendicular to the axis and at regular intervals in the axial direction. a second movable electrode plate made of a shaped metal plate, and a plurality of hollows provided in the inner wall of the metal case parallel to the movable electrode plate between the second movable electrode plate and at a constant interval from the movable electrode plate. a second fixed electrode plate made of a disk-shaped metal plate; a vertically lifting screw portion provided airtight in the axial direction approximately at the center of the movable electrode mounting disk; and a tip of the vertically lifting screw portion and the metal. A vacuum characterized by comprising: a second bellows provided to maintain a vacuum between the inner bottom of the case; and a position adjustment member screwed into the vertically lifting screw portion through the second bellows. capacitor. (3) A claim characterized in that a corbel conductor plate is provided electrically in parallel with the bellows inserted between the movable electrode attachment member and the power supply terminal, and the current flowing through the bellows is shunted by the corbel conductor plate. term
Vacuum capacitor described in (1) or (2).