Electromagnetic relay
AssigneeFujitsu Component Limited
InventorsKazuo Kubono, Takashi Yuba, Yoichi Hasegawa, Takuji Murakoshi
Life of this patent
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Abstract
An electromagnetic relay includes a fixed contact, a movable contact corresponding to the fixed contact, a movable element that retains the movable contact and moves in a contacting direction and a separating direction relative to the fixed contact, an axial core coupled to the movable element, a movable core coupled to the axial core to move in the contacting direction and the separating direction relative to a movement of the axial core, a driving part that drives the movable core in the contacting direction, an urging part that exerts force to the axial core in the separating direction, and a constraining part that constrains the relative movement of the axial core in the separating direction.
Claims12
An electromagnetic relay comprising:
- a fixed contact;
- a movable contact corresponding to the fixed contact;
- a movable element that retains the movable contact and moves in a contacting direction and a separating direction relative to the fixed contact;
- an axial core including a first terminal end, a second terminal end opposite to the first terminal end, and a first portion to which the movable element is coupled, the first portion being positioned between the first terminal end and the second terminal end;
- a movable core coupled to the first terminal end of the axial core to move in the contacting direction and the separating direction relative to a movement of the axial core;
- a driving part that drives the movable core in the contacting direction;
- an urging part that exerts force to the axial core in the separating direction;
- and
- a constraining part that constrains the relative movement of the axial core in the separating direction,
- wherein the urging part is coupled to a second portion of the axial core, the second portion being positioned between the first portion and the second terminal end of the axial core.
An electromagnetic relay comprising:
- a fixed contact;
- a movable contact;
- a movable element that retains the movable contact;
- an axial core including a first terminal end, a second terminal end opposite to the first terminal end, and a first portion to which the movable element is coupled, the first portion being positioned between the first terminal end and the second terminal end;
- an urging part that exerts force to the axial core in a direction that the movable contact separates from the fixed contact;
- an electromagnet that generates a magnetic force when electrically charged;
- and
- a movable core coupled to the first terminal end of the axial core;
- wherein the urging part is coupled to a second portion of the axial core, the second portion being positioned between the first portion and the second terminal end of the axial core, and
- the magnetic force generated by the electrical charging of the electromagnet attracts the movable core to drive the axial core and cause the movable element to move in a direction that the movable contact contacts the fixed contact.
Dependencies are inferred from the claim text.