RELAY

• US 20090102583A1
• Filed: 08/08/2006
• Published: 04/23/2009
• Est. Priority Date: 08/12/2005
• Status: Active Grant

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Nakamura, Masanori, Shinoura, Tatsuo, Saruwatari, Yojiro, Ota, Akira
• Granted Patent: US 7,847,660 B2
• Time in Patent Office: Days
• US Class Current: 335/5
• CPC Class Codes: H01H 2011/067 by deforming, e.g. bending, folding or caulking, part of the contact or terminal which is being mounted
• CPC Class Codes: H01H 50/54 Contact arrangements
• CPC Class Codes: H01H 50/546 for contactors having bridging contacts
• CPC Class Codes: H01H 50/641 intermediate part performing a rectilinear movement H01H50/645, H01H50/66 - H01H50/74 take precedence
• CPC Class Codes: H01H 51/2272 comprising rockable armature, rocking movement around central axis parallel to the main plane of the armature H01H51/2227 takes precedence

Abstract

A relay driving a plunger includes a movable iron piece, and a movable contact point, and position restricting means. The movable iron piece is configured to rotate around a horizontal shaft center between a contact point base and an electromagnetic unit based on excitation and nonexcitation of an electromagnetic unit placed above the contact point base. The movable contact point is fixed to a lower end portion of the plunger protruding from a lower surface of the contact point base. The movable contact point is contacted with and separated from a fixed contact point. The position restricting means is provided on an upper surface side of the contact point base.

Claims

1. A relay driving a plunger, comprising:

a movable iron piece configured to rotate around a horizontal shaft center between a contact point base and an electromagnetic unit based on excitation and nonexcitation of an electromagnetic unit placed above the contact point base;

a movable contact point fixed to a lower end portion of the plunger protruding from a lower surface of the contact point base, wherein the movable contact point is contacted with and separated from a fixed contact point; and

position restricting means for restricting rotational movement of the plunger, wherein the position restricting means is provided on an upper surface side of the contact point base.

2. The relay according to claim 1, wherein the lower end portion of the plunger is fitted into a caulk opening having a generally rectangular shape in cross section, and fixed by caulking.

3. The relay according to claim 2, wherein an engagement recess is formed in an opening edge portion of the caulk opening of the lower surface of the movable contact point.