15results about "Contact fixed to operating part" patented technology

Operating switch, comprising:• an operating lever (2),• a housing structure (3), in the upper part of which said operating lever (2) is fixed so that it can rotate about a first pivot point (O);• a plunger (4), fixed on one side to the operating lever (2) and moving with it so that it can slide along a first axis (X) of said operating lever (2), supported by an elastic device (41);• a printed circuit board (5) consisting of at least two push buttons (51) mounted in the lower part of said housing structure (3); each push button (51) consists of at least one silicone dome (511) and at least one electrical contact (512) adapted so that when the dome (511) is pressed, an electrical circuit is closed;said housing structure (3) consists, in its inner part (3'), of a free-standing structure (31) consisting of two inclined contact surfaces (311), mirrored along a second vertical axis (Z), thus forming a first obtuse angle (α) on which said pushbutton (4) can slide along its path; said free-standing structure (31) is structurally fixed to the housing structure (3); said control switch comprises at least one actuator (6) positioned along said free-standing structure (31) to be pressed by the pushbutton (4) and to trigger the electrical commutation of at least one of the pushbuttons (51);characterized in that the at least one actuator (6) is monolithic and consists of two contact parts (65), each of which is positioned along one of the inclined contact surfaces (311) on which the plunger (4) acts along its path on said inclined contact surfaces (311), and has two actuating parts (63), each of which is positioned near a push button (51) and is intended to actuate the respective push button (51) by exerting a force on the corresponding silicone dome (511); said contact parts (65) are located between the two actuating parts (63); each actuating part (63) of the actuator (6) lies on top of a respective silicone dome (511), so that said actuator (6) rests only on the silicone domes (511);and in that,depending on the action exerted directly by the plunger (4) on one of said contact parts (65), the corresponding actuator (6) can rotate about one of two axes of rotation (T, T');each of said two axes of rotation (T, T') is located on one of the actuating parts (63) of the actuator (6) itself;depending on the direction of rotation of the operating lever (2), the axis of rotation (T, T') is located on the actuating part (63) opposite the actuating part (63) which must actuate the push button (51);

The embodiment of the invention relates to a switching device for an electrical system. A low voltage switchgear comprising a switching device having one or more switching poles, each switching pole comprising: a first terminal and a second terminal coupleable with a corresponding wire conductor of an electrical wire; a fixed contact assembly including a plurality of fixed electrical contacts electrically connected to the first terminal and including one or more first fixed contacts and one or more second fixed contacts electrically insulated from the first fixed contacts; and a movable contact assembly including a plurality of movable electrical contacts electrically connected to the second terminal and including one or more first movable contacts and one or more second movable contacts. For each switching pole of the switching device, the switching apparatus includes a current limiter electrically connected in series with the second fixed contact and the first terminal of the switching pole. The current limiter is configured to limit or cut off the current during a turn-off manipulation of the switching device.

An input device is provided with which the total number of changes in the electrical state of fixed electrodes when an operation section moves between click points can be more freely set. The input device (2) is provided with two fixed electrodes (29a, 29b) and an operation section (20). The two fixed electrodes (29a, 29b) are arranged to overlap a prescribed wiring electrode (Y1) among a plurality of wiring electrodes (Y1). The operation section (20) is movable relative to the two fixed electrodes (29a, 29b). The operation section (20) is movable within a movable range including a plurality of click points. The electrical states (Q1, Q2) of the two fixed electrodes (29a, 29b) change between a plurality of states in response to movement of the operation section 20. When the operation section (20) moves between a pair of adjacent click points among the plurality of click points, the total number of changes in the electrical states (Q1, Q2) of the two fixed electrodes (29a, 29b) is an integer N. The integer N is a number that is not a factor of 4.

A low-voltage switching apparatus is disclosed which comprises a switching device having one or more switch poles. Each switch pole comprises first and second pole terminals that can be coupled with corresponding line conductors of an electric line; a fixed contact assembly is connected to the first pole terminal and includes first fixed contacts and second fixed contacts electrically insulated from the first fixed contacts; and a movable contact assembly connected to the second pole terminal and including first movable contacts and second movable contacts. The switching apparatus comprises, for each switch pole, a current limiter connected with the second fixed contacts and the first pole terminal of the switch pole. Each current limiter is configured to limit a current flowing along a series circuit including at least the second fixed contacts, the current limiter and the first pole terminal, during an opening maneuver of the switching device.

A dome switch comprising a resiliently compressible keycap; an electrically conductive element enclosed by the resiliently compressible keycap; and a switch circuit located under the resiliently compressible keycap and the electrically conductive element, the switch circuit comprising a first circuit board trace and a second circuit board trace, wherein the first circuit board trace and the second circuit board trace are electrically separated; wherein: the first circuit board trace comprises a central portion and a plurality of first projections extending from the central portion to form a non-convex shape; the second circuit board trace comprises a surrounding portion and a plurality of second projections extending from the surrounding portion to form a non-convex shape; wherein the second circuit board trace is arranged to enclose a majority part of the first circuit board trace and the first projections and the second projections are arranged to be positioned in an alternating manner; and wherein the dome switch is configured such that upon being depressed, the resiliently compressible keycap is operable to enable an electrical contact between the electrically conductive element and at least part of the first circuit board trace and at least part of the second circuit board trace so as to temporarily complete the switch circuit.

A dome switch comprising a resiliently compressible keycap; an electrically conductive element enclosed by the resiliently compressible keycap; and a switch circuit located under the resiliently compressible keycap and the electrically conductive element, the switch circuit comprising a first circuit board trace and a second circuit board trace, wherein the first circuit board trace and the second circuit board trace are electrically separated; wherein: the first circuit board trace comprises a central portion and a plurality of first projections extending from the central portion to form a non-convex shape; the second circuit board trace comprises a surrounding portion and a plurality of second projections extending from the surrounding portion to form a non-convex shape; wherein the second circuit board trace is arranged to enclose a majority part of the first circuit board trace and the first projections and the second projections are arranged to be positioned in an alternating manner; and wherein the dome switch is configured such that upon being depressed, the resiliently compressible keycap is operable to enable an electrical contact between the electrically conductive element and at least part of the first circuit board trace and at least part of the second circuit board trace so as to temporarily complete the switch circuit.

A low-voltage switching apparatus comprising a switching device having one or more switch poles, each comprising: - a first pole terminal and a second pole terminal that can be coupled with corresponding line conductors of an electric line; - a fixed contact assembly comprising a plurality of fixed electric contacts electrically connected to said first pole terminal and including one or more first fixed contacts and one or more second fixed contacts electrically insulated from said first fixed contacts; - a movable contact assembly comprising a plurality of movable electric contacts electrically connected to said second pole terminal and including one or more first movable contacts and one or more second movable contacts. The switching apparatus comprises, for each switch pole of said switching device, a current limiter electrically connected in series with the second fixed contacts and the first pole terminal of said switch pole. Each current limiter is configured to limit or break a current flowing along a series circuit including at least said second fixed contacts, said current limiter and said first pole terminal, during an opening manoeuvre of said switching device, when the first movable electric contacts of said movable contact assembly decouple from the first fixed contacts of said fixed contact assembly.

A progressively contacting switch includes a set of contacts connected to an input. The set includes a first sacrificial contact formed of a first metal and a first conducting contact formed of a second metal. The switch further includes a movable set of contacts connected to an output. The movable set includes a second sacrificial contact formed of the first metal and a second conducting contact formed of the second metal. The switch includes an element configurable to connect the movable set of contacts such that the first sacrificial contact connects to the second sacrificial contact at a first time, thereby causing a current to flow from the input to the output, and while the first sacrificial contact remains connected to the second sacrificial contact, the first conducting contact connects with the second conducting contact at a later time.

An electromagnetic relay suppresses retriggering of an arc generated at contacts. The electromagnetic relay has a housing, a first fixed terminal, a second fixed terminal, a movable contact piece, a first magnet, a gas flow path, and a partition member. The housing includes a housing space and a side wall that covers the housing space from a first direction. The housing space includes a first space and a second space. The first fixed terminal includes a first fixed contact disposed in the first space. The second fixed terminal includes a second fixed contact disposed in the second space. The movable contact piece includes a first movable contact and a second movable contact. The first magnet elongates a first arc generated between the first fixed contact and the first movable contact in the first direction. The gas flow path is disposed between the side wall and the movable contact piece. The gas flow path includes a flow inlet that communicates with the first space and a flow outlet that communicates with the second space. The partition member is disposed between the movable contact piece and the gas flow path and partitions the first space and the second space from the gas flow path.

A game controller key includes a base, a casing and a key switch. The casing is fastened to the base to form a cavity; the key switch is disposed in the cavity; the top of the key switch is exposed from a surface of the casing; conductive silica gel is installed at the bottom of the key switch; a through hole is provided at a position on the base that corresponds to the conductive silica gel; a spring is installed between the key switch and the base; a side wall of the key switch is provided with a first bump; a plate body is installed on the base; a gap is present between each of two sides of the plate body and the base; and the plate body is provided with a second bump matching the first bump. The spring is used for controlling the force of the key.

The present invention provides a relay, comprising a housing, a first fixed terminal and a second fixed terminal. The housing includes a first mounting portion and a second mounting portion. The first mounting portion has a first through hole penetrating in a first direction, and the second mounting portion has a second through hole penetrating in the first direction. The second mounting portion is separated from the first mounting portion in a second direction orthogonal to the first direction and is disposed offset to one side in a third direction orthogonal to the first direction and the second direction with respect to the first mounting portion. The first fixed terminal includes a first fastening portion, and the first fastening portion is provided with a first threaded insertion hole along the first direction and is exposed to the outside from the housing at a position on the side in the third direction relative to the first mounting portion. The second fixed terminal includes a second fastening portion, and the second fastening portion is provided with a second screw insertion hole along the first direction and is exposed to the outside from the housing on the other side in the third direction relative to the second mounting portion and is disposed offset to the other side in the third direction with respect to the first fastening portion.

The present invention provides an electromagnetic relay capable of easily controlling the elongation direction of an arc. The electromagnetic relay includes a base, a housing, an arc elongation space, a contact device, and a magnet. The arc elongation space is formed between the base and the housing. The contact device includes a fixed terminal supported by the base, a fixed contact connected to the fixed terminal, a movable contact piece, and a movable contact connected to the movable contact piece and opposed to the fixed contact. The magnet generates a magnetic field for elongating an arc generated between the fixed contact and the movable contact within the arc elongation space. The magnet includes a first magnet portion facing the contact device and a second magnet portion arranged adjacent to the first magnet portion and facing the arc elongation space. The distance from the midpoint of the straight line connecting the fixed contact and the movable contact to the base is different from the distance from the center of the arc elongation space to the base. The distance from the center of the first magnet portion to the base is different from the distance from the center of the second magnet portion to the base.

To prevent restriking of arc at a contact in an electromagnetic relay.SOLUTION: An electromagnetic relay comprises a case, a first fixed terminal, a second fixed terminal, a movable contact piece, a first magnet, a gas passage, a partition member. The case includes: a housing space; and a lateral wall covering the housing space from a first direction. The housing space includes a first space and a second space. The first fixed terminal includes a first fixed contact disposed in the first space. The second fixed terminal includes a second fixed contact disposed in the second space. The movable contact piece includes a first movable contact and a second movable contact. The first magnet extends first arc, generated between the first fixed contact and the first movable contact, in the first direction. The gas passage is located between the lateral wall and the movable contact piece. The gas passage includes: an inflow port communicating with the first space; and an outflow port communicating with the second space. The partition member is disposed between the movable contact piece and the gas passage, and it partitions off the first space and the second space from the gas passage.SELECTED DRAWING: Figure 4

Electromagnetic relay, characterized in that it comprises: a first movable contact (86a, 87b) and a second movable contact (86b, 87a) arranged on a movable contact piece (80, 81), a first fixed contact (21a, 24a) and a second fixed contact (22a, 23a) arranged to be contactable and separable from the first movable contact (86a, 87b) and the second movable contact (86b, 87a), respectively; and a magnetic field generating unit (35) arranged to attract an arc generated between the first movable contact (86a, 87b) and the first fixed contact (21a, 24a) and an arc generated between the second movable contact (86b, 87a) and the second fixed contact (22a, 23a) in a predetermined direction, in which, when a predetermined period of time has elapsed after the generation of an arc at least either between the first movable contact (86a, 87b) and the first fixed contact (21a, 24a) or between the second movable contact (86b, 87a) and the second fixed contact (22a, 23a), an arc generated between the first movable contact (86a, 87b) and the first fixed contact (21a, 24a) is elongated by the magnetic field generating unit (35) so that it is longer than an arc generated between the second movable contact (86b, 87a) and the second fixed contact (22a, 23a).

A contactor includes a housing having a wall defining a cavity and a cover closing the cavity. The contactor includes a first fixed contact and a second fixed contact received in the cavity. The contactor includes a movable contact movable within the cavity between a mated position and an unmated position. The movable contact engages the first and second fixed contacts to electrically connect the first fixed contact and the second fixed contact in the mated position. The contactor includes a coil assembly in the cavity operated to move the movable contact between the unmated position and the mating position. The contactor includes a thermal absorber thermally coupled to the first fixed contact to reduce an operating temperature of the first fixed contact. The thermal absorber includes a phase change material element configured to absorb heat from the first fixed contact.