Magnetic electrical switch

Patent metadata

Field	Value
Publication number	US-11114263-B2
Application number	US-201916685304-A
Country	US
Kind code	B2
Filing date	Nov 15, 2019
Priority date	Dec 18, 2018
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

A magnetic electrical switch apparatus includes: a switch assembly that includes: a switch body housing including a stationary contact; a shaft configured to move relative to the switch body housing, the shaft including: a moveable contact; and a first magnet; and a movable support member including a second magnet. The moveable contact and the first magnet are configured to move with the shaft. Moving the movable support member moves the second magnet relative to the first magnet, and a magnetic interaction between the second magnet and the first magnet moves the moveable contact relative to the stationary contact to thereby change a state of the switch assembly.

First claim

What is claimed is:

1. A magnetic electrical switch apparatus comprising:
a switch assembly comprising:
a switch body housing comprising a stationary contact;
a shaft configured to move relative to the switch body housing, the shaft comprising:
a moveable contact; and
a first magnet, wherein the moveable contact and the first magnet are configured to move with the shaft; and

a moveable support member comprising a second magnet, wherein
moving the moveable support member moves the second magnet relative to the first magnet, and a magnetic interaction between the second magnet and the first magnet moves the moveable contact relative to the stationary contact to thereby change a state of the switch assembly, and
the first magnet comprises a first north pole and a first south pole, the second magnet comprises a second north pole and a second south pole, the shaft and the moveable support member are arranged such that, when the first magnet and the second magnet are in substantially the same plane, the first north pole faces the second north pole or the first south pole faces the second south pole, and the magnetic interaction comprises a magnetic repulsion that moves the first magnet, the shaft, and the moveable contact away from the second magnet.

2. The apparatus of claim 1 , wherein the magnetic interaction separates the moveable contact from the stationary contact or joins the moveable contact to the stationary contact to change the state of the switch assembly.

3. The apparatus of claim 1 , wherein the moveable support member and switch assembly are physically separated and do not make direct physical contact with each other.

4. The apparatus of claim 1 , wherein the switch assembly further comprises an elastic member coupled to the shaft.

5. The apparatus of claim 4 , wherein the shaft moves away from the second magnet and compresses the elastic member in response to the magnetic interaction between the first magnet and the second magnet.

6. The apparatus of claim 5 , wherein the elastic member comprises at least one spring.

7. The apparatus of claim 1 , wherein the moveable support member is coupled to a linear actuator that is configured to move the moveable support member in response to an activation input.

8. The apparatus of claim 1 , wherein the switch body housing comprises a plurality of stationary contacts, the shaft comprises a plurality of moveable contact assemblies, and the magnetic interaction between the second magnet and the first magnet moves the shaft and all of the moveable contact assemblies relative to all of the stationary contacts to thereby change a state of the switch assembly.

9. The apparatus of claim 1 , further comprising a fixed support member configured to hold the switching assembly in a fixed location.

10. The apparatus of claim 9 , wherein the fixed support member is configured to hold a plurality of the switching assemblies.

11. The apparatus of claim 10 , wherein the magnetic interaction between the second magnet and the first magnet moves the shaft and the moveable contact relative to the stationary contact to thereby change a state of one of the plurality of switch assemblies.

12. The apparatus of claim 1 , wherein the switching assembly is configured to conduct an electrical current of 15 Amperes (A).

13. The apparatus of claim 1 , wherein the moveable contact comprises a moveable contact assembly, and the stationary contact comprises a pair of stationary contacts.

14. A magnetic electrical switch apparatus comprising:
a switch assembly comprising:
a switch body housing comprising a stationary contact;
a shaft configured to move relative to the switch body housing, the shaft comprising:
a moveable contact; and
a first magnet, wherein the moveable contact and the first magnet are configured to move with the shaft; and

a moveable support member comprising a second magnet, wherein
moving the moveable support member moves the second magnet relative to the first magnet, and a magnetic interaction between the second magnet and the first magnet moves the moveable contact relative to the stationary contact to thereby change a state of the switch assembly, and
the moveable support member and switch assembly are physically separated and do not make direct physical contact with each other.

15. The apparatus of claim 14 , wherein the magnetic interaction separates the moveable contact from the stationary contact or joins the moveable contact to the stationary contact to change the state of the switch assembly.

16. A magnetic electrical switch apparatus comprising:
a switch assembly comprising:
a switch body housing comprising a plurality of stationary contacts;
a shaft configured to move relative to the switch body housing, the shaft comprising:
a plurality of moveable contact assemblies; and
a first magnet, wherein the moveable contact assemblies and the first magnet are configured to move with the shaft; and

a moveable support member comprising a second magnet, wherein
moving the moveable support member moves the second magnet relative to the first magnet, and a magnetic interaction between the second magnet and the first magnet moves the shaft and all of the moveable contact assemblies relative to all of the stationary contacts to thereby change a state of the switch assembly.

17. The apparatus of claim 16 , wherein the switch assembly further comprises an elastic member coupled to the shaft.

18. The apparatus of claim 16 , wherein the shaft further comprises:
a shaft housing that defines a recessed region; and
a moveable member, wherein
the moveable member is in the recessed region and is configured to move in the recessed region relative to the shaft housing, and
the first magnet and the plurality of moveable contact assemblies are mounted to the moveable member, and
the moveable contact assemblies and the first magnet being configured to move with the shaft comprises the moveable contact assemblies and the first magnet being configured to move with the moveable member.

19. The apparatus of claim 18 , wherein the switch body housing further comprises:
a first portion; and
a second portion, wherein, the shaft housing is between an interior side of the first portion and an interior side of the second portion.

20. A magnetic electrical switch apparatus comprising:
a switch assembly comprising:
a switch body housing comprising a stationary contact;
a shaft configured to move relative to the switch body housing, the shaft comprising:
a moveable contact; and
a first magnet, wherein the moveable contact and the first magnet are configured to move with the shaft;

a moveable support member comprising a second magnet, wherein moving the moveable support member moves the second magnet relative to the first magnet, and a magnetic interaction between the second magnet and the first magnet moves the moveable contact relative to the stationary contact to thereby change a state of the switch assembly; and
a fixed support member configured to hold the switching assembly in a fixed location, wherein the fixed support member is configured to hold a plurality of the switching assemblies.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Pearce Michael
• Spoone Travis

Classifications

• H01H2225/008

  Two different sites for one circuit, e.g. for safety · CPC title

• H01H2221/044

  Elastic part on actuator or casing · CPC title

• H01H36/0073 Primary

  actuated by relative movement between two magnets · CPC title

• H02B11/10

  Indicating electrical condition of gear; Arrangement of test sockets · CPC title

• H01H9/161

  comprising light emitting elements · CPC title