Opposite arc isolation device of high voltage direct current relay
First Claim
1. An opposite arc isolation device of a high voltage direct current relay, comprising a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly comprises a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate;
- the fixed contact assembly comprises a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact an arc isolation member made of an insulating material is provided between the left movable contact and the right fixed contact a front-to-rear dimension L of the arc isolation member is greater than a front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and
, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts, wherein the arc isolation member is fixed on the movable spring plate;
positioning notches are formed on a front side and a rear side of the movable spring plate;
an accommodating groove running downward through the arc isolation member is formed at a lower end of the arc isolation member, and the accommodating groove transversely runs through the arc isolation member;
a buckle structure is formed on the arc isolation member; and
, the buckle structure is fitted with the positioning notches to position the movable spring plate within the accommodating groove.
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Accused Products
Abstract
The present invention discloses an opposite arc isolation device of a high voltage direct current relay, including a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly includes a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate; the fixed contact assembly includes a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact; an arc isolation member made of insulating material is provided between the left movable contact and the right fixed contact; the front-to-rear dimension L of the arc isolation member is greater than the front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts.
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Citations
6 Claims
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1. An opposite arc isolation device of a high voltage direct current relay, comprising a movable contact assembly and a fixed contact assembly, wherein the movable contact assembly comprises a movable spring plate and a left movable contact and a right movable contact fixed at left and right ends of the movable spring plate;
- the fixed contact assembly comprises a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact an arc isolation member made of an insulating material is provided between the left movable contact and the right fixed contact a front-to-rear dimension L of the arc isolation member is greater than a front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and
, the arc isolation member has a height H that enables the isolation of opposite arcs between the two sets of movable and fixed contacts, wherein the arc isolation member is fixed on the movable spring plate;
positioning notches are formed on a front side and a rear side of the movable spring plate;
an accommodating groove running downward through the arc isolation member is formed at a lower end of the arc isolation member, and the accommodating groove transversely runs through the arc isolation member;
a buckle structure is formed on the arc isolation member; and
, the buckle structure is fitted with the positioning notches to position the movable spring plate within the accommodating groove. - View Dependent Claims (2, 3, 4, 5, 6)
- the fixed contact assembly comprises a left fixed contact corresponding to the left movable contact and a right fixed contact corresponding to the right movable contact an arc isolation member made of an insulating material is provided between the left movable contact and the right fixed contact a front-to-rear dimension L of the arc isolation member is greater than a front-to-rear width M of a joint surface of the movable contacts with the fixed contacts; and
Specification