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US 12,626,877 B2Granted
Movable contact part and direct current relay comprising 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 comprising the same. The movable contact part, according to one embodiment of the present disclosure, comprises a coupling part which is provided to each component. The coupling part provided to each component is coupled to the coupling part provided to another adjacently positioned component. Thus, a coupled state between each of the components constituting the movable contact part may be easily and stably formed.
Claims19
A movable contact part, comprising:
- a movable contact which is in contact with or spaced apart from a fixed contact;
- an upper yoke which is located on a first side of the movable contact, covers a portion of the movable contact and forms a magnetic force, the upper yoke comprising:
- a cover part, extending in a length direction from a first end to a second end, opposite to the first end, and in a width direction, orthogonal to the length direction, from a first face to a second face;
- a first arm part, coupled to the first end of the cover part and extending in a height direction, orthogonal to the length direction and to the width direction;
- and
- a second arm part, coupled to the second end of the cover part and extending in the height direction;
- wherein the cover part defines a plurality of upper grooves spaced apart from one another along the length direction that are defined on a first surface of the cover part that faces the movable contact;
- and
- a shaft holder which is positioned between the movable contact and the upper yoke, the shaft holder comprising:
- a horizontal part, extending in the length direction between a first end and a second end;
- a first extension portion, coupled to the first end of the horizontal part and extending in the height direction;
- and
- a second extension portion, coupled to the second end of the horizontal part, opposite to the first end of the horizontal part, extending in the height direction;
- wherein the horizontal part defines a plurality of holder protrusions that each protrude from a first surface of the horizontal part and is each inserted into a corresponding upper groove of the plurality of upper grooves;
- wherein each upper groove of the plurality of upper grooves extends for a first distance in the height direction into the cover part from the first surface of the cover part less than a thickness of the cover part between the first surface of the cover part and a second surface of the cover part opposite to the first surface of the cover part.
12 more elements
A direct current relay, comprising:
- a fixed contact which is energized with an external power source or load;
- and
- a movable contact part which is located below the fixed contact and moves in a direction toward the fixed contact and in a direction opposite to the fixed contact,
- wherein the movable contact part comprises:
- a movable contact which is in contact with or spaced apart from the fixed contact, and formed to have a length in a first direction that is longer than a width in a second direction orthogonal to the first direction;
- an upper yoke which is located on a first side of the movable contact and covers the movable contact, the upper yoke comprising:
- a cover part, extending in the second direction from a first end to a second end, opposite to the first end, and in the first direction from a first face to a second face, wherein the cover part defines an upper groove on a first surface of the cover part that faces the movable contact;
- a first arm part, coupled to the first end of the cover part and extending in a third direction, orthogonal to the first direction and to the second direction;
- and
- a second arm part, coupled to the second end of the cover part and extending in the third direction;
- a shaft holder which is positioned between the upper yoke and the movable contact, and covers the movable contact, the shaft holder comprising:
- a horizontal part, extending in the first direction between a first end and a second end, wherein the horizontal part defines a holder protrusion that protrudes from a first surface of the horizontal part and is each inserted into the upper groove;
- a first extension portion, coupled to the first end of the horizontal part and extending in the third direction;
- and
- a second extension portion, coupled to the second end of the horizontal part, opposite to the first end of the horizontal part, extending in the third direction;
- and
- a lower yoke which supports the movable contact from a second side of the movable contact, opposite to the first side of the movable contact,
- wherein the upper yoke and the lower yoke respectively form a magnetic force that attenuates an electromagnetic repulsive force generated between the fixed contact and the movable contact;
- wherein each upper groove of the plurality of upper grooves extends for a first distance in the height direction into the cover part from the first surface of the cover part less than a thickness of the cover part between the first surface of the cover part and a second surface of the cover part opposite to the first surface of the cover part.
16 more elements
A movable contact part, comprising:
- a movable contact which is in contact with or spaced apart from a fixed contact;
- an upper yoke which is located on a first side of the movable contact, covers a portion of the movable contact and forms a magnetic force, the upper yoke comprising:
- a cover part extending in a first direction between a first end and a second end;
- a first arm part, coupled to the first end of the cover part and extending in a second direction, orthogonal to the first direction;
- and
- a second arm part, coupled to the second end of the cover part, opposite to the first end of the cover part, extending in the second direction;
- wherein the cover part defines:
- an upper groove which is formed to be recessed on a first surface of the cover part that faces the movable contact;
- an upper through-hole defined between the first surface of the cover part and a second surface of the cover part, opposite to the first surface;
- and
- a shaft holder which is positioned between the movable contact and the upper yoke, comprising:
- a horizontal part, extending in the first direction between a first end and a second end;
- a first extension portion, coupled to the first end of the horizontal part and extending in the second direction;
- and
- a second extension portion, coupled to the second end of the horizontal part, opposite to the first end of the horizontal part, extending in the second direction;
- wherein the horizontal part defines:
- a holder protrusion that protrudes from a first surface of the horizontal part that faces the upper yoke and is inserted into the upper groove;
- and
- a holder through-hole defined between the first surface of the horizontal part and a second surface of the horizontal part, opposite to the first surface;
- and
- a support rod is penetratingly coupled to the upper yoke and the shaft holder through the upper through-hole and the holder through-hole;
- wherein each upper groove of the plurality of upper grooves extends for a first distance in the height direction into the cover part from the first surface of the cover part less than a thickness of the cover part between the first surface of the cover part and a second surface of the cover part opposite to the first surface of the cover part.
19 more elements
Dependencies are inferred from the claim text.