CONTACTOR AND ELECTROMAGNETIC RELAY

• US 20160300676A1
• 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: SAKAI, SATOSHI, YOKOYAMA, KOJI
• Granted Patent: US 9,799,474 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01H 45/04 Mounting complete relay or separate parts of relay on a base or inside a case
• CPC Class Codes: H01H 47/22 for supplying energising current for relay coil
• CPC Class Codes: H01H 50/026 Details concerning isolation between driving and switching circuit
• CPC Class Codes: H01H 50/20 movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
• CPC Class Codes: H01H 50/546 for contactors having bridging contacts
• CPC Class Codes: H01H 50/58 Driving arrangements structurally associated therewith; Mounting of driving arrangements on armature

Abstract

A contactor includes a pair of fixed contacts, a movable contact element configured to contact the pair of fixed contacts and to be separated from the pair of fixed contacts, a movable shaft configured to move in an axial direction as to cause the movable contact element to contact the pair of fixed contacts and to be separated from the pair of fixed contacts, and a partition-wall component disposed opposite to the pair of fixed contacts with respect to the movable contact element. The first partition-wall component includes a partition wall provided around the movable shaft. The first partition wall is configured to move synchronously with at least one of the movable contact element and the movable shaft.

Claims

1. A contactor comprising:

a pair of fixed contacts;

a movable contact element configured to contact and be separated from the pair of fixed contacts;

a movable shaft configured to move in an axial direction as to cause the movable contact element to contact the pair of fixed contacts and to be separated from the pair of fixed contacts; and

a first partition-wall component disposed opposite to the pair of fixed contacts with respect to the movable contact element,

wherein the first partition-wall component includes a first partition wall provided around the movable shaft, the first partition wall being configured to move synchronously with at least one of the movable contact element and the movable shaft.

2. The contactor of claim 1, further comprising a second partition-wall component having therein an insertion aperture into which the movable shaft is inserted, the second partition-wall component facing the first partition-wall component in the axial direction.

3. The contactor of claim 2, wherein the second partition-wall component includes a second partition wall provided around the insertion aperture.

4. The contactor of claim 3, wherein the first partition wall overlaps the second partition wall in a direction perpendicular to the axial direction.

5. The contactor of claim 4,

wherein the first partition-wall component further includes a third partition wall provided around the movable shaft concentrically with the first partition wall, the third partition wall moving synchronously with at least one of the movable contact element and the movable shaft, and

wherein the first partition wall, the second partition wall, and the third partition wall alternately overlap one another in the direction perpendicular to the axial direction such that the second partition wall is located between the first partition wall and the third partition wall in the direction perpendicular to the axial direction.

6. The contactor of claim 5,

wherein the second partition-wall component further includes a fourth partition wall provided around the insertion aperture concentrically with the second partition wall, and

wherein the first partition wall, the second partition wall, the third partition wall, and the fourth partition wall alternately overlap one another in the direction perpendicular to the axial direction such that the second partition wall is located between the first partition wall and the third partition wall and that the third partition wall is located between the second partition wall and the fourth partition wall in the direction perpendicular to the axial direction.

7. The contactor of claim 4,

wherein the second partition-wall component further includes a third partition wall provided around the insertion aperture concentrically with the second partition wall, and

wherein the first partition wall, the second partition wall, and the third partition wall alternately overlap one another in the direction perpendicular to the axial direction such that the first partition wall is located between the second partition wall and the third partition wall in the direction perpendicular to the axial direction.

8. The contactor of claim 3, wherein an end of the first partition wall faces an end of the second partition wall in the axial direction.

9. The contactor of claim 1, wherein the first partition wall includes an extension extending in a direction crossing the axial direction.

10. An electromagnetic relay comprising:

the contactor of claim 1; and

a driver configured to drive the movable shaft as to allow the contact element to contact the pair of fixed contacts and to be separated from the pair of fixed contacts.