CONTACT DEVICE AND ELECTROMAGNETIC RELAY

• US 20160300680A1
• Filed: 04/01/2016
• Published: 10/13/2016
• Est. Priority Date: 04/13/2015
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: YOKOYAMA, KOJI, SAKAI, SATOSHI
• Granted Patent: US 9,679,707 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01H 1/2075 T-shaped bridge; bridging contact has lateral arm for mounting resiliently or on a pivot
• CPC Class Codes: H01H 1/22 with rigid pivoted member carrying the moving contact

Abstract

A contact device includes a pair of fixed contacts, a movable contactor, a contactor holder, a movable shaft, and a base. The pair of fixed contacts are aligned in a first direction. The movable contactor comes into or out of contact with the pair of fixed contacts in a second direction orthogonal to the first direction. The contactor holder holds the movable contactor. The movable shaft moves the contactor holder in the second direction so that the movable contactor comes into or out of contact with the fixed contacts. The base accommodates the fixed contacts, the movable contactor, and the contactor holder. The base has a projection projecting from a position opposing the contactor holder in a third direction orthogonal to both the first and second directions.

Claims

1. A contact device comprising:

a pair of fixed contacts aligned in a first direction;

a movable contactor coming into or out of contact with the pair of fixed contacts in a second direction orthogonal to the first direction;

a contactor holder holding the movable contactor;

a movable shaft which moves the contactor holder in the second direction so that the movable contactor comes into or out of contact with the pair of fixed contacts; and

a base accommodating the pair of fixed contacts, the movable contactor, and the contactor holder, the base having a projection projecting from a position opposing the contactor holder in a third direction orthogonal to both the first direction and the second direction.

2. The contact device according to claim 1,

wherein the contactor holder has an upper area and a lower area,

the lower area is more distant from the movable contactor than the upper area in the second direction, and

the lower area has a larger length than the upper area in the third direction.

3. The contact device according to claim 1,

wherein the projection has a curved end surface, and

the contactor holder has a flat surface opposing the projection.

4. The contact device according to claim 1,

wherein the contactor holder has a projected area in a position opposing the projection.

5. The contact device according to claim 1,

wherein the contactor holder includes a resin member which comes into contact with the projection when the movable contactor and the contactor holder twist.

6. The contact device according to claim 1,

wherein the projection is one of a plurality of projections aligned in the first direction, and

the base has the plurality of projections.

7. The contact device according to claim 1,

wherein the projection is one of a pair of projections formed on a pair of inner surfaces opposing each other of the base in the third direction.

8. An electromagnetic relay comprising:

the contact device according to claim 1; and

a driving device which drives the movable shaft so that the movable contactor comes into or out of contact with the pair of fixed contacts.