Relay

Patent metadata

Field	Value
Publication number	US-11004640-B2
Application number	US-201916282348-A
Country	US
Kind code	B2
Filing date	Feb 22, 2019
Priority date	Mar 30, 2018
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

A relay has a case, a first fixed terminal including a first fixed contact, a second fixed terminal including a second fixed contact, a movable touch piece including a first movable contact that is disposed facing the first fixed contact and a second movable contact that is disposed facing the second fixed contact, the movable touch piece being disposed in the case and disposed so as to be movable in a direction in which the first movable contact and the second movable contact come into contact with the first fixed contact and the second fixed contact and in a direction in which the first movable contact and the second movable contact separate from the first fixed contact and the second fixed contact, a drive shaft connected to the movable touch piece and extending in a movement direction of the movable touch piece, and a coil.

First claim

The invention claimed is:

1. A relay comprising:
a case;
a first fixed terminal including a first fixed contact;
a second fixed terminal including a second fixed contact;
a movable touch piece including a first movable contact that is disposed facing the first fixed contact and a second movable contact that is disposed facing the second fixed contact, the movable touch piece being disposed in the case and disposed so as to be movable in a direction in which the first movable contact and the second movable contact come into contact with the first fixed contact and the second fixed contact and in a direction in which the first movable contact and the second movable contact separate from the first fixed contact and the second fixed contact;
a drive shaft connected to the movable touch piece and extending in a movement direction of the movable touch piece;
a coil configured to generate a driving force for operating the drive shaft;
a drive device including an iron core inserted in the coil, and a yoke connected to the iron core, the drive device being disposed in the movement direction of the movable touch piece with respect to the movable touch piece; and
a coil connection including a coil terminal connected to the coil, and a connector configured to support the coil terminal, the coil connection being provided on an outer surface of the case,
wherein the first fixed terminal includes:
a first fixed touch piece configured to support the first fixed contact, and
a first bus bar connected to the first fixed touch piece, and at least a part of which is disposed outside the case,

wherein the first bus bar includes a portion not overlapping with the drive device as viewed in the movement direction of the movable touch piece, and
wherein at least a part of the coil connection is disposed so as to overlap with a portion of the first bus bar not overlapping with the drive device as viewed in the movement direction of the movable touch piece.

2. The relay according to claim 1 ,
wherein the first bus bar includes a first extension extending in a first direction from the first movable contact to the second movable contact, and
wherein at least a part of the coil connection is disposed in a position overlapping with the first extension as viewed in the movement direction of the movable touch piece.

3. The relay according to claim 2 , wherein the connector is disposed facing a direction away from the first bus bar.

4. The relay according to claim 2 ,
wherein the case includes a side surface extending along the movement direction of the movable touch piece, and
wherein the coil connection is disposed facing the side surface.

5. The relay according to claim 2 ,
wherein the case includes a top surface disposed in the movement direction of the movable touch piece with respect to the drive device, and
wherein the coil connection is disposed in a position not overlapping with the top surface as viewed in the movement direction of the movable touch piece.

6. The relay according to claim 1 ,
wherein the first fixed terminal includes:
a first contact support included in the first fixed touch piece and disposed in the case,
a first extension included in the first bus bar and extending in a first direction from the first movable contact to the second movable contact, and
a first intermediate portion having a shape folded back from the first contact support toward the first extension, and

wherein at least a part of the coil connection is disposed in a position overlapping with the first intermediate portion as viewed in the movement direction of the movable touch piece.

7. The relay according to claim 6 , wherein the connector is disposed facing a direction away from the first bus bar.

8. The relay according to claim 6 ,
wherein the case includes a side surface extending along the movement direction of the movable touch piece, and
wherein the coil connection is disposed facing the side surface.

9. The relay according to claim 1 ,
wherein the first bus bar includes a first external connection disposed outside the case, and
wherein at least a part of the coil connection is disposed in a position overlapping with the first external connection as viewed in the movement direction of the movable touch piece.

10. The relay according to claim 9 ,
wherein the first external connection includes a connection structure connected to an external circuit, and
wherein the coil connection is disposed in a position not overlapping with the connection structure as viewed in the movement direction of the movable touch piece.

11. The relay according to claim 10 , wherein the connector is disposed facing a direction away from the first bus bar.

12. The relay according to claim 10 ,
wherein the case includes a side surface extending along the movement direction of the movable touch piece, and
wherein the coil connection is disposed facing the side surface.

13. The relay according to claim 9 , wherein the connector is disposed facing a direction away from the first bus bar.

14. The relay according to claim 9 ,
wherein the case includes a side surface extending along the movement direction of the movable touch piece, and
wherein the coil connection is disposed facing the side surface.

15. The relay according to claim 1 , wherein the connector is disposed facing a direction away from the first bus bar.

16. The relay according to claim 15 ,
wherein the case includes a side surface extending along the movement direction of the movable touch piece, and
wherein the coil connection is disposed facing the side surface.

17. The relay according to claim 1 ,
wherein the case includes a side surface extending along the movement direction of the movable touch piece, and
wherein the coil connection is disposed facing the side surface.

18. The relay according to claim 1 ,
wherein the case includes a top surface disposed in the movement direction of the movable touch piece with respect to the drive device, and
wherein the coil connection is disposed in a position not overlapping with the top surface as viewed in the movement direction of the movable touch piece.

19. The relay according to claim 1 ,
wherein the first bus bar has a flat plate shape, and
wherein the first bus bar is disposed such that a normal direction of the first bus bar faces the movement direction of the movable touch piece.

20. The relay according to claim 1 ,
wherein the first bus bar includes a portion not overlapping with the yoke as viewed in the movement direction of the movable touch piece, and
wherein at least a part of the coil connection is disposed so as to overlap with a portion of the first bus bar not overlapping with the yoke as viewed in the movement direction of the movable touch piece.

Assignees

• Omron Tateisi Electronics Co

Inventors

• Minowa Ryota
• Iwasaka Hiroyuki
• Hayashida Yasuo

Classifications

• H01H50/443

  Connections to coils · CPC title

• H01H50/02

  Bases; Casings; Covers (frames for mounting two or more relays or for mounting a relay and another electric component H02B1/01, H04Q1/08, H05K) · CPC title

• H01H50/14

  Terminal arrangements {(for coils H01H50/443)} · CPC title

• H01H50/641

  intermediate part performing a rectilinear movement (H01H50/645, H01H50/66 - H01H50/74 take precedence) · CPC title

• H01H50/54

  Contact arrangements · CPC title