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47results about "Switch lubrication" patented technology

Switchgear operating apparatuses

The invention provides a compact, lightweight and low-cost operating apparatus for a switchgear. A second cam (50) turned counterclockwise by an electric motor begins to maintain contact with a closing lever (37) at a first angular position (POS1), turns the closing lever (37) counterclockwise to energize a circuit-making coil spring (77), and causes a closing latch (48) to lock the closing lever (37). The second cam (50) further turning counterclockwise becomes separated from the closing lever (37) and actuates a cam switch (156) at a second angular position (POS2) to interrupt an electric current supplied to the electric motor. The second cam (50) further turns due to inertial turning of the electric motor and is braked by a elastic brake member (159) at a third angular position (POS3), whereby the second cam (50) stops within a specific angular range DELTAtheta of rotation. Despite its simple structure, the elastic brake member (159) can halt the second cam (50) in a reliable fashion.
Owner:MITSUBISHI ELECTRIC CORP

Power Switchgear

Disclosed is a power switch gear that includes: a fixed electrode and a movable electrode disposed opposite to each other in a tank filled with insulting gas; and a movable conductor electrically connecting the fixed electrode and the movable electrode together. The fixed electrode and the movable electrode have a contactor through which current flows to the movable conductor. At least one of the fixed electrode and the movable electrode has ring-shaped sliding members, the ring-shaped sliding members being disposed, on both sides of the contactor. At least one grease pool is provided between the contactor and the sliding members.
Owner:HITACHI LTD

Gas insulated switchgear

Provided is a gas insulated switchgear which has a small frictional force and a small wear volume in a slide portion and is capable of maintaining the state of having the small frictional force and the small wear volume for a long period of time. In a container of a bus-integrated disconnection switch (27) of the gas insulated switchgear (10), an insulation gas is contained, and a movable side contact portion (31), a fixed side contact portion (32), and a movable contact unit (33) are provided, to constitute a disconnection portion (30). A hard carbon film (50) is formed on an outer circumferential surface of the movable contact unit (33) excluding a part where the movable contact unit (33) is in contact with a contact point terminal (32a) of the fixed side contact portion (32) in the state in which the movable contact unit (33) is inserted into the fixed side contact portion (32) and electrically connected therewith and a part where the movable contact unit (33) is in contact with a contact point terminal (31a) of the movable side contact portion (31) in the state where in which the movable contact unit (33) is electrically shut off.
Owner:KK TOSHIBA

Grease for electrical contact and slide electricity structure, power switch, vacuum circuit breaker, vacuum-insulated switchgear assembling method

InactiveCN102789910AContact resistance does not increaseSwitch lubricationSwitchgear arrangementsElectricitySilver plate
A slide electricity structure according to the present invention uses grease for electrical contacts wherein contact resistance does not gradually increase even when exposed to sliding and lifetime is long, and has a silver-plated spring contact that contacts or separates by way of sliding and grease for electrical contacts that has been applied to the spring contact and contains perfluoropolyether oil having an average molecular weight between 2600 and 12500 as a base oil and PTFE having a primary particle diameter of 1 [mu]m or less as a thickener.
Owner:HITACHI IND EQUIP SYST CO LTD +1

Driving shaft of electric switch

The invention provides a driving shaft of an electric switch, which comprises a shaft body, a cam part arranged on one end of the shaft body and a spring, wherein the cam part is provided with a circumferential caulking groove perpendicular to the axis of the shaft body; the spring is sheathed in the circumferential caulking groove; the spring is provided with two ends extending out of the caulking groove; the extending positions of the two ends respectively correspond to the switching-off or switching-on position of the driving shaft; the spring can be a torsion spring or a clamp spring; thespring arranged on one end of the driving shaft can play a role of buffering when the electric switch is converted between the switching-off state and the switching-on state; and in addition, the spring can play a role of stabilizing the position of the driving shaft when the electric switch is in the switching-off or switching-on state.
Owner:SIEMENS AG

Vehicular operation switch and method for controlling the same

An operation switch for a vehicle includes a light source and a grease. The light source is provided to illuminate a switch knob from a rear face side of the switch knob. The grease is applied to a sliding part. The light source is forcibly activated based on temperature information in a passenger compartment of the vehicle.
Owner:DENSO CORP

Circuit breaker with shift guide

A thermal overload open-phase tripping device includes in a case bimetals corresponding to different phases; a differential shifter mechanism composed of a push shifter and a pull shifter, linked to operating ends of the bimetals, and an interlocking plate; and a compensating bimetal for transmitting output from the shifter mechanism to an opening and closing mechanism section of a breaker main body. The push and pull shifters are slidably supported to extend over interphase partition walls in the case, and a case cover is placed and held over the push and pull shifters. Rib-shaped projections projecting from an inner surface of the case cover and facing the top surfaces of the shifters are provided as shifter position guides to constrain inclination of the shifters moving in accordance with bending displacement of the bimetals to hold the shifters horizontally.
Owner:FUJI ELECTRIC FA COMPONENTS & SYST CO LTD

Electrified lubricating device for isolating switch

The invention discloses an electrified lubricating device for an isolating switch. The electrified lubricating deice comprises an oil pump system, a first oil tube, a second oil tube, an insulating tube and an oil nozzle, wherein the oil pump system comprises an oil storage pot and an oil pump, and the oil storage pot is connected with an oil inlet of the oil pump by virtue of the first oil tube; and the oil nozzle is connected with one end of the insulating tube, one end of the second oil tube is connected with an oil outlet of the oil pump, and the other end of the second oil tube extends into the insulating tube and is connected with the oil nozzle. The electrified lubricating device disclosed by the invention can be used for adding a lubricant to a transmission part of the isolating switch in an electrified manner, and by virtue of periodical lubrication, the problems that unsmooth blockage caused by the reason that the isolating switch is not operated and overhauled for a long time is generated, and the isolating switch and a ground switch cannot be connected and disconnected in place and cannot be connected and disconnected are greatly eliminated, so that the running reliability and power supply reliability of the isolating switch are improved, and the economic benefit of an enterprise is improved; and by using the electrified lubricating device disclosed by the invention, climbing operations of maintenance personnel can be avoided, and thus the safety risk of the maintenance personnel can be reduced.
Owner:STATE GRID CORP OF CHINA +2

Contact switch

A contact switch includes a case, a first contact provided in the case, a second contact provided in the case, an actuator for causing the first contact to contact the second contact, and an oil-repellent agent applied to at least one of an outer edge of the first contact or an outer edge of the second contact The oil-repellent agent includes a fluorine-based polymer. The switch has a simple structure and connects between the contacts reliably.
Owner:PANASONIC CORP

Electric switch

An electrical switch is disclosed, especially a circuit breaker. In addition, a method for improving such a switch is also disclosed. In order to protect an electrical switch in an especially simple manner from contamination and / or damage by erosion materials, it is proposed to cover a few or all functional parts of the switch at least partly with a protective material, wherein the protective material involves a viscous, temperature-resistant mass.
Owner:SIEMENS AG

Actuation assembly for an oral irrigator

An actuation assembly (122, 322) for an oral irrigator (100) includes a bezel (166, 366) secured to or formed as part of a housing (103) of the oral irrigator (100), an actuator (162, 362) operably connected to the bezel (166, 366) and moveable relative thereto, and an augmentation fluid (300, 500) positioned between the bezel (166, 366) and the actuator (162, 362). The augmentation fluid (300, 500) modifies a frictional relationship between the bezel (166, 366) and the actuator (162, 362) to provide a predefined resistance force between the actuator (162, 362) and the bezel (166, 366) as theactuator (162, 362) is rotated relative to the bezel (166, 366).
Owner:WATER PIK INC

Satellite shaft assembly, key and mechanical keyboard

The invention belongs to the technical field of computer accessories, and particularly relates to a satellite shaft assembly, a key and a mechanical keyboard. The satellite shaft assembly comprises a shaft shell, a bottom cover, a shaft core and a balance rod, the shaft shell is provided with a containing cavity, the bottom cover is detachably connected to the bottom end of the shaft shell and covers the bottom of the containing cavity in a matched mode, the lower end of the shaft core is slidably installed in the containing cavity, the upper end of the shaft core can extend out of the top end of the shaft shell, and the balance rod comprises a middle rod section and a connecting rod section connected to the middle rod section. The middle rod section is pivoted with the shaft shell, the free end of the connecting rod section is inserted into the containing cavity of the shaft shell and connected with the shaft core, and when the middle rod section pivots, the connecting rod section can drive the shaft core to synchronously slide up and down relative to the shaft shell. Thus, the bottom end of the shaft shell is connected with the bottom cover, the bottom cover covers the containing cavity from the bottom of the containing cavity, lubricating oil added into the containing cavity is blocked above the bottom cover and cannot leak out from the bottom of the containing cavity, and therefore the situation that the lubricating oil leaks to pollute other structures of the keyboard can be effectively avoided.
Owner:深圳市欣羿兴科技有限公司

Quick cooling protection mechanism used after short circuit of circuit breaker in intelligent manufacturing

The invention discloses a quick cooling protection mechanism used after short circuit of a circuit breaker in intelligent manufacturing. The quick cooling protection mechanism used after short circuitof the circuit breaker in intelligent manufacturing comprises a shell, wherein an inner cavity is arranged in the shell, the top of the shell is fixedly connected with an inflatable airbag, a springpipe extending into the inner cavity is fixedly connected to the bottom of the inflatable air bag, a piston plate is fixedly connected to the bottom of the spring pipe, a connecting hole is formed inthe right wall of the shell, a storage cavity is formed in the left wall of the shell, and a movable groove is formed in the bottom of the storage cavity. According to the quick cooling protection mechanism used after short circuit of the circuit breaker in intelligent manufacturing, the circuit breaker is filled with the transformer oil, so that dissipation of heat in the circuit breaker is accelerated, internal components are protected, and meanwhile, the effect of isolating dust to lubricate mechanical parts is achieved. In this way, the situation that a circuit cannot be cut off in time and losses are caused due to transmission jamming caused by dust or abrasion of internal mechanical parts can be prevented.
Owner:扬州杰控自动化设备有限公司

A live lubrication device for an isolating switch

The invention discloses an electrified lubricating device for an isolating switch. The electrified lubricating deice comprises an oil pump system, a first oil tube, a second oil tube, an insulating tube and an oil nozzle, wherein the oil pump system comprises an oil storage pot and an oil pump, and the oil storage pot is connected with an oil inlet of the oil pump by virtue of the first oil tube; and the oil nozzle is connected with one end of the insulating tube, one end of the second oil tube is connected with an oil outlet of the oil pump, and the other end of the second oil tube extends into the insulating tube and is connected with the oil nozzle. The electrified lubricating device disclosed by the invention can be used for adding a lubricant to a transmission part of the isolating switch in an electrified manner, and by virtue of periodical lubrication, the problems that unsmooth blockage caused by the reason that the isolating switch is not operated and overhauled for a long time is generated, and the isolating switch and a ground switch cannot be connected and disconnected in place and cannot be connected and disconnected are greatly eliminated, so that the running reliability and power supply reliability of the isolating switch are improved, and the economic benefit of an enterprise is improved; and by using the electrified lubricating device disclosed by the invention, climbing operations of maintenance personnel can be avoided, and thus the safety risk of the maintenance personnel can be reduced.
Owner:STATE GRID CORP OF CHINA +2

Waterproof assembly for keyboard switch, keyboard and electronic apparatus

A waterproof assembly is adapted for a keyboard switch. The water proof assembly includes a body element, a water proof cover, a sliding channel, and a pushing rod. The body element defines a plunger guiding groove and a conductive member accommodating groove. The waterproof cover covers the conductive member accommodating groove. The sliding channel is defined between the conductive member accommodating groove and the waterproof cover, and is communicated with the plunger guiding groove and the conductive member accommodating groove. The pushing rod is mounted inside the sliding channel to control a conductive member of the keyboard switch to be turned on or turned off.
Owner:DONGGUAN CITY KAIHUA ELECTRONICS

Electronic plunger switch

A plunger switch for use as a switch element in an electrical circuit, has a housing and a plunger movable axially in a bore of the housing in the direction of a longitudinal axis and when in an operating position in which it is depressed toward the housing, acts on an electronic sensor unit situated in the housing, which in turn initiates a switching procedure in the electrical circuit by electrical pulses, and the plunger, in its axial plunging region into the bore of the housing, is peripherally provided with at least one lubricating groove, which permits a lubricating fluid to travel into the axial plunging region between the plunger and bore, and the electronic sensor unit is protected from a penetration of lubricating fluid.
Owner:KISSLING ELEKTROTECHNIK GMBH & CO KG
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