Electromagnetic relay
First Claim
1. An electromagnetic relay comprising:
- a contact switching unit formed by arranging at least two contact groups in parallel with each other and perpendicular to a touch/separation direction of the contacts, each of the contact groups includes a pair of contacts which are adapted to touch each other and separate from each other;
an electromagnet block adapted to drive the contact switching unit to open/close the contacts; and
an arc extinguishing member including a connection member made from a magnetic material and formed by a) a connection of projecting sections that respectively project out from both sides of a middle part of said connection member in the direction of the parallel arrangement of the contact groups and between the contact groups, and b) opposing walls that respectively project out from ends of said connection member, and permanent magnets respectively affixed by their magnetic force to the opposing walls.
1 Assignment
0 Petitions
Accused Products
Abstract
An electromagnetic relay including a contact switching unit formed by arranging at least two contact groups, in parallel with each other and perpendicular to the touch/separation direction of the contacts, each of the contact group includes a pair of contacts that can touch and separate; an electromagnet block that drives the contact switching unit to open and close the contacts; and an arc-extinguishing member comprising a connection member made from a magnetic material and formed by a connection of protrusions that respectively protrude from both sides of a middle part in the direction of the parallel arrangement of the contact groups and between the contact groups, and also comprising permanent magnets respectively disposed at least on the opposing positions of the protrusions located on both sides of the middle part.
61 Citations
13 Claims
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1. An electromagnetic relay comprising:
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a contact switching unit formed by arranging at least two contact groups in parallel with each other and perpendicular to a touch/separation direction of the contacts, each of the contact groups includes a pair of contacts which are adapted to touch each other and separate from each other; an electromagnet block adapted to drive the contact switching unit to open/close the contacts; and an arc extinguishing member including a connection member made from a magnetic material and formed by a) a connection of projecting sections that respectively project out from both sides of a middle part of said connection member in the direction of the parallel arrangement of the contact groups and between the contact groups, and b) opposing walls that respectively project out from ends of said connection member, and permanent magnets respectively affixed by their magnetic force to the opposing walls. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13)
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11. An electromagnetic relay comprising:
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a contact switching unit having a fixed touch piece and a movable touch piece facing the fixed touch piece; an electromagnet block adapted to be magnetized or demagnetized and to drive the movable touch piece so that a movable contact arranged in the movable touch piece opens/closes with respect to a fixed contact arranged in the fixed touch piece, wherein at least two fixed touch pieces have the fixed contact; the movable touch piece includes at least a pair of contact piece portions including the movable contact, and an arc extinguishing member including a) a connection member having projecting sections projecting out from both sides of each touch piece portion and connected with each other via a middle part of said connection member between the open/close positions of the contact, and b) opposing walls that respectively project out from ends of said connection member, and permanent magnets respectively affixed by their magnetic force to the opposing walls.
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Specification