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US 12,651,718 B2Granted
Movable contact part and DC relay including same
AssigneeLs Electric Co., Ltd.
InventorJung Woo Yoo
Life of this patent
Estimating the term…
Abstract
Disclosed are a movable contact part and a direct current relay including the same. The movable contact part according to an embodiment of the present disclosure includes an upper holder and a lower holder. One holder among the upper holder and the lower holder has a coupling protrusion that protrudes toward the other holder. The other holder among the upper holder and the lower holder has a coupling groove into which the coupling protrusion is inserted and coupled. The lower holder is coupled to the inside of a housing, and the upper holder is coupled to each of the lower holder and the housing. Accordingly, the coupling between the upper holder and the lower holder is facilitated, and the coupled state can be stably maintained.
Claims6
A movable contact part, comprising:
- a movable contact;
- an upper holder surrounding the movable contact at a first side;
- a housing positioned to face the upper holder with the movable contact interposed therebetween, and surrounding the movable contact at a second side opposite to the first side;
- and
- a lower holder located inside the housing, partially exposed to an exterior of the housing and coupled to the upper holder;
- wherein a first one of the upper holder and the lower holder is provided with a coupling protrusion protruding toward a second one of the upper holder and the lower holder,
- a coupling groove accommodating the coupling protrusion is formed in the second one of the upper holder and the lower holder, and
- wherein the upper holder comprises:
- a base, extending in a first direction to a first side and a second direction, opposite to the first direction, to a second side;
- a first connection part, extending continuously from the first side of the base in a third direction toward the lower holder;
- a second connection part, extending continuously from the second side of the base in the third direction toward the lower holder, wherein the base, the first connection part, and the second connection part surround the movable contact on three sides;
- and
- a first cushioning part continuous with the first connection part, extending toward the lower holder, and formed to protrude further in the first direction compared to the first connection part to cushion an external force,
- a second cushioning part continuous with the second connection part, extending toward the lower holder, and formed to protrude further in the second direction compared to the second connection part to cushion the external force,
- wherein the first cushioning part comprises:
- a first bend part extending obliquely from the first connection part in the first direction;
- a second bend part extending at a second predetermined angle with respect to the first bend part;
- and
- a third bend part extending obliquely from the second bend part in the second direction;
- wherein the lower holder comprises:
- a flat plate part located inside the housing, extending in the first direction to a first end and the second direction to a second end, and having the coupling protrusion formed at the first end;
- wherein the upper holder comprises:
- a first coupling part that is continuous with the first cushioning part, extends toward the lower holder, has the coupling groove formed therein, and defines a third coupling groove in addition to the coupling groove;
- a second coupling part that is continuous with the second cushioning part, extends toward the lower holder, has a second coupling groove formed therein, and defines a fourth coupling groove in addition to the second coupling groove, such that the coupling groove, the second coupling groove, the third coupling groove, and the fourth coupling groove are members of a plurality of coupling grooves;
- and
- wherein the lower holder comprises:
- a second coupling protrusion formed at a second end of the flat plate part in the second direction, such that the coupling protrusion and the second coupling protrusion are members of a plurality of coupling protrusions, wherein the plurality of coupling protrusions positioned at any one end of the flat plate part are coupled to the plurality of coupling grooves provided in coupling part of the first coupling part and the second coupling part;
- and
- wherein:
- each of the first coupling part and the second coupling part is formed to have a width in a fourth direction,
- the plurality of coupling grooves provided in any one coupling part of the first coupling part and the second coupling part are spaced apart from each other in the fourth direction, and
- the plurality of coupling protrusions located at any one end of each end of the flat plate part are spaced apart from each other in the fourth direction.
29 more elements
A direct current relay, comprising:
- a fixed contact electrically connected to an external power source or load;
- a movable contact positioned below the fixed contact and coming into contact with and spaced apart from the fixed contact;
- an upper holder positioned between the movable contact and the fixed contact and surrounding an upper side of the movable contact;
- a housing located below the movable contact and surrounding a lower side of the movable contact;
- and
- a lower holder located inside the housing, partially exposed to an exterior of the housing and coupled to the upper holder;
- wherein a first one of the upper holder and the lower holder is provided with a coupling protrusion protruding toward a second one of the upper holder and the lower holder,
- a coupling groove accommodating the coupling protrusion is formed in the second one of the upper holder and the lower holder, and
- wherein the upper holder comprises:
- a base, extending in a first direction to a first side and a second direction, opposite to the first direction, to a second side;
- a first connection part, extending continuously from the first side of the base in a third direction toward the lower holder;
- a second connection part, extending continuously from the second side of the base in the third direction toward the lower holder, wherein the base, the first connection part, and the second connection part surround the movable contact on three sides;
- a first cushioning part continuous with the first connection part, extending toward the lower holder, and formed to protrude further along the first direction compared to the first connection part to cushion an external force, and a second cushioning part continuous with the second connection part, extending toward the lower holder, and formed to protrude further along the second direction compared to the second connection part to cushion the external force,
- wherein the first cushioning part comprises:
- a first bend part extending obliquely from the first connection part in the first direction;
- a second bend part extending at a second predetermined angle with respect to the first bend part;
- and
- a third bend part extending obliquely from the second bend part in the second direction,
- wherein the lower holder comprises:
- a flat plate part located inside the housing, extending in the first direction to a first end and the second direction to a second end, and having the coupling protrusion formed at the first end;
- wherein the upper holder comprises:
- a first coupling part that is continuous with the first cushioning part, extends toward the lower holder, has the coupling groove formed therein, and defines a third coupling groove in addition to the coupling groove;
- a second coupling part that is continuous with the second cushioning part, extends toward the lower holder, has a second coupling groove formed therein, and defines a fourth coupling groove in addition to the second coupling groove, such that the coupling groove, the second coupling groove, the third coupling groove, and the fourth coupling groove are members of a plurality of coupling grooves;
- and
- wherein the lower holder comprises:
- a second coupling protrusion formed at a second end of the flat plate part in the second direction, such that the coupling protrusion and the second coupling protrusion are members of a plurality of coupling protrusions, wherein the plurality of coupling protrusions positioned at any one end of the flat plate part are coupled to the plurality of coupling grooves provided in coupling part of the first coupling part and the second coupling part;
- and
- wherein:
- each of the first coupling part and the second coupling part is formed to have a width in a fourth direction,
- the plurality of coupling grooves provided in any one coupling part of the first coupling part and the second coupling part are spaced apart from each other in the fourth direction, and
- the plurality of coupling protrusions located at any one end of each end of the flat plate part are spaced apart from each other in the fourth direction.
28 more elements
Dependencies are inferred from the claim text.