US 11,056,299 B2Granted

Vacuum circuit breaker

AssigneeTavrida Electric Holding AG

InventorsSergey Ivanovich Malakhovskiy, Vladimir Sergeevich Minaev

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Abstract

A vacuum circuit breaker 10 comprising a vacuum interrupter 12 coupled between upper 18 and lower 20 terminals and being operable to make or break an electrical connection between the upper and lower terminals. The circuit breaker has a body 22 formed from electrically insulating material, the vacuum interrupter being located in an internal chamber of the body. The lower terminal 20 comprises a hollow body 26 that forms part of the internal chamber and which is shaped and dimensioned to allow the vacuum interrupter 12 to pass through it. An electrical connector device 50 has a movable part 52 that is connected to the movable contact and an annular fixed part 54 that is connected to the lower terminal 20. The movable part 52 is connected to the first part 54 by flexible connectors 56, and has a socket (58) for engaging an electrical connector 60 of the vacuum interrupter 12. A pulling rod 16 is coupled to the movable contact via the electrical connector 60.

Claims24

Dependent claims

A vacuum circuit breaker comprising:

a first terminal;
a second terminal;
a vacuum interrupter coupled between said first and second terminals and being operable to make or break an electrical connection between said first and second terminals;
and
a body formed from electrically insulating material and being shaped to define an internal chamber,
wherein said first and second terminals are supported by said body, and said vacuum interrupter is located in said internal chamber,
and wherein the second terminal comprises a hollow body that forms part of said internal chamber and which is shaped and dimensioned to allow the vacuum interrupter to pass through it,
and wherein said first and second terminals are spaced apart along a pole axis of the body, the first terminal being located at a top of the body and providing a first electrical connection interface at the top of the body, the second terminal including a stem projecting non-parallelly from said pole axis to provide a second electrical connection interface that is laterally displaced from the pole axis, and wherein a notional perpendicular axis from the second electrical connection interface to the pole axis intersects the pole axis at an intersection point, a configuration of the circuit breaker being such that a notional triangle created by said first and second electrical connection interfaces and said intersection point is an isosceles triangle, wherein a notional line between said first and second electrical connection interfaces forms a hypotenuse of the triangle.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/610,884Filed 3 May 2018
Priority: GB 17070273 May 2017
Published: US 2020/0075275 A15 Mar 2020
Granted: 6 Jul 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01H 33/6606
Vacuum switches: terminal arrangements
H01H 33/66207
Housings or protective screens: specific housing details, e.g. sealing, soldering or brazing
H01H 33/66261
Housings or protective screens: specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
H01H 33/666
Vacuum switches: operating arrangements