Contact device and electromagnetic relay
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsJunya Kimura, Kohei Tani
Life of this patent
Estimating the term…
Abstract
A contact device of the present disclosure includes a fixed terminal, a movable member, a regulating member, and a heat transmission structure. The fixed terminal includes a fixed contact. The movable member includes a movable contact and is configured to move between a closed position where the movable contact is in contact with the fixed contact and an open position where the movable contact is apart from the fixed contact. The regulating member is configured to be in contact with the movable contact when the movable member is in the open position. The heat transmission structure is configured to transmit, to the fixed terminal, heat from the movable contact when the movable member is in the open position, through a thermal path including at least the regulating member.
Claims12
A contact device, comprising:
- a fixed terminal including a fixed contact;
- a movable member including a movable contact and being configured to move between a closed position where the movable contact is in contact with the fixed contact and an open position where the movable contact is apart from the fixed contact;
- a regulating member configured to be in contact with the movable contact when the movable member is in the open position;
- and
- a heat transmission structure configured to transmit, to the fixed terminal, heat from the movable contact when the movable member is in the open position, through a thermal path including at least the regulating member,
- wherein the heat transmission structure includes at least one extended part extending from the fixed terminal toward the regulating member,
- the at least one extended part includes a plurality of extended parts, and
- at least one of the plurality of extended parts is provided on one of both sides of the fixed terminal and a rest of the plurality of extended parts is provided on the other of the both sides of the fixed terminal in a direction transverse to a direction in which the fixed contact and the movable contact are aligned with each other.
A contact device, comprising:
- a fixed terminal including a fixed contact;
- a movable member including a movable contact and being configured to move between a closed position where the movable contact is in contact with the fixed contact and an open position where the movable contact is apart from the fixed contact;
- a regulating member configured to be in contact with the movable contact when the movable member is in the open position;
- and
- a heat transmission structure configured to transmit, to the fixed terminal, heat from the movable contact when the movable member is in the open position, through a thermal path including at least the regulating member,
- wherein the heat transmission structure includes at least one extended part extending from the fixed terminal toward the regulating member,
- the at least one extended part has a tip end facing a holding structure that holds the regulating member, and
- a seal member is provided in a gap between the tip end of the at least one extended part and a counter portion of the holding structure, the counter portion facing the tip end of the at least one extended part.
A contact device, comprising:
- a fixed terminal including a fixed contact;
- a movable member including a movable contact and being configured to move between a closed position where the movable contact is in contact with the fixed contact and an open position where the movable contact is apart from the fixed contact;
- a regulating member configured to be in contact with the movable contact when the movable member is in the open position;
- and
- a heat transmission structure configured to transmit, to the fixed terminal, heat from the movable contact when the movable member is in the open position, through a thermal path including at least the regulating member,
- wherein the heat transmission structure includes an intermediate member located between the fixed terminal and the regulating member, and
- the intermediate member has a higher thermal conductivity than a material whose component ratio is highest of materials included in a first holding structure that holds the fixed terminal and a second holding structure that holds the regulating member, and the intermediate member is electrically insulating.
Dependencies are inferred from the claim text.