Patent classifications
H01H50/546
Electrical assembly
An electrical assembly may include a contactor, a bus bar connected to the contactor, a bracket connected to the bus bar, a flexible circuit electrically connected to the contactor, and/or a cooling member connected to the bracket. A method of assembling an electrical assembly may include disposing a flexible circuit at least partially on and/or in the bracket, connecting a bus bar with the one or more contactors, connecting the bus bar with the bracket, electrically connecting the flexible circuit to the one or more contactors, disposing a cooling member on or about the bracket, and/or connecting the cooling member with the bracket.
Direct current relay
The present disclosure relates to a direct current relay, and more specifically, to a direct current relay having a movable assembly with improved contact pressure. The direct current relay according to an embodiment of the present disclosure comprises a pair of fixed contacts, and a movable contact which is moved vertically by an electromagnetic force to contact or be separated from the pair of fixed contacts, wherein an upper yoke and a lower yoke are respectively provided on the upper and lower portions of the movable contact, a contact spring is provided on the lower portion of the lower yoke, and the lower yoke is pressed by the contact spring to move the movable contact.
Power relay having terminal tabs
A power relay having terminal tabs includes an on-off contact element having at least one movable contact and at least one stationary contact, an on-off drive element, at least two pairs of input/output terminal tabs, and at least one pair of control terminal tabs. The on-off drive element makes the movable contact come into contact with or separated from the stationary contact. The two pairs of input/output terminal tabs are electrically connected to at least one pair of input/output portions of the on-off contact element. The one pair of control terminal tabs is electrically connected to control terminal portions of the on/off drive element. Each of the input/output portions is electrically connected to two of the input/output terminal tabs, which are arranged side-by-side in their thickness direction and in vicinity with each other. The input/output terminal tabs and the control terminal tabs have a same thickness and width.
Dual parallel moveable electrical contacts/relays
A system includes a mechanical switching device having a first moveable contact operatively connected to selectively contact a first static contact. A second moveable contact is operatively connected to selectively contact a second static contact that is electrically connected in parallel with the first static contact. The first and second moveable contacts are mechanically connected to each other to move between a closed circuit position and an open circuit position. The first moveable contact contacts the first static contact before the second moveable contact contacts the second static contact as the first and second moveable contacts move into the closed circuit position from the open circuit position. The first moveable contact disconnects from the first static contact after the second moveable contact disconnects from the second static contact as the first and second moveable contacts move from the closed circuit position into the open circuit position.
Mobile contact-holder for cutout and cutout comprising such a mobile contact-holder
A mobile contact-holder for a cutout includes a support in which there is formed a housing, a mobile element made of electrically conductive material mounted to slide, in a longitudinal axis of the support, in the housing of the support, an upstream electrical contact pad and a downstream electrical contact pad borne by the mobile element and a spring which exerts a return force on the mobile element. The support includes two oblong holes emerging in the housing and extending along its longitudinal axis. The mobile contact-holder also includes a guiding shaft which is fixed in translation with respect to the mobile element, which extends along an axis parallel to a transverse axis of the support and which is engaged in the oblong holes of the support. The guiding shaft engaged in the oblong holes guides the translation of the mobile element in the housing.
ARC PATH FORMATION UNIT AND DIRECT CURRENT RELAY INCLUDING SAME
An arc path formation unit and a direct current relay are disclosed. The arc path formation unit according to an embodiment of the present disclosure comprises a plurality of magnet parts. Each magnet part is arranged adjacent to a plurality of fixed contacts. Opposing surfaces of the plurality of magnet parts located adjacent to one fixed contact and facing each other, the opposing surfaces facing each other, and opposing surfaces of the magnet parts located adjacent to another fixed contact, the opposing surfaces facing each other, are configured to have the same polarity. Accordingly, electromagnetic forces formed in the fixed contacts are formed in a direction away from each other and away from a central portion. Accordingly, damage to each configuration of the arc path formation unit and the direct current relay caused by a generated arc can be minimized.
CONTACT LEVITATION TRIGGERING MECHANISMS FOR USE WITH SWITCHING DEVICES INCORPORATING PYROTECHNIC FEATURES
Electrical switching device are disclosed having a housing with internal component within the housing. The internal components comprise contacts configured to operate, to change the state of the switching device from a closed state, allowing current flow through the switching device to an open state which interrupts current flow through the switching device. A pyrotechnic feature is included that is configured to interact with the internal components to transition the switching device from the closed state to the open state when the pyrotechnic feature is activated. The pyrotechnic feature is configured to trigger in response to levitation between the contacts at elevated current signal flowing through the switching device.
ELECTROMAGNETIC RELAY
The electromagnetic relay includes a fixed terminal, a movable contact piece, a drive device, a contact case, at least one magnet, and at least one yoke. The fixed terminal includes a fixed contact. The movable contact piece includes a movable contact disposed to face the fixed contact. The drive device moves the movable contact piece in a direction in which the movable contact comes into contact with the fixed contact and in a direction in which the movable contact is separated from the fixed contact. The contact case is made of resin. The contact case houses the fixed contact and the movable contact piece. The at least one magnet is disposed around the contact case for generating a magnetic field inside the contact case. The at least one yoke is fixed to the contact case.
ELECTROMAGNETIC RELAY AND METHOD OF MANUFACTURING ELECTROMAGNETIC RELAY
A press-fit fixing portion fixes a drive unit and a relay unit by press-fitting a claw portion and the recess portion. A sealing member is provided on an outside of the relay unit and the drive unit. An inner cover forms a sealed space for sealing an arc-extinguishing gas together with the sealing member. An electromagnetic relay is configured to make it possible both an adjustment of a press-fitting amount of the claw portion and the recess portion and an adjustment of the gap between a ceramic insulator at an end of a shaft and a movable element by making each of the relay unit and the drive unit in a manufacturing process to the same state as in when a magnetizing coil is energized.
RELAY
A relay includes a housing, a contact assembly and an auxiliary contact assembly. The contact assembly includes the movable contacts adapted to move towards or away from the stationary contacts under the driving of the movable contact bridge. The auxiliary contact assembly includes an auxiliary contact bridge and auxiliary contacts. At least portion of each of the auxiliary contacts extends into the housing. The auxiliary contact bridge moves synchronously with the movable contact bridge to be selectively and electrically connected to the auxiliary contacts. The housing includes a top surface spaced apart from the stepped portion in the movement direction of the movable contact bridge or the auxiliary contact bridge. The stationary contacts are arranged on the top surface of the housing. The portion of each of the auxiliary contacts arranged outside the housing is arranged on each of the stepped portions.