46results about "Switch lubrication" patented technology

A multi-directional switching device having: a case; a switch housed in the case; one operating member capable of inclining in multi-directions, for operating the switch by means of an inclining operation in each of the directions; a first rubber dome to be operated by means of an inclining operation of the operating member; and a second rubber dome arranged in the vicinity of the first rubber dome, wherein a movable distance of the second rubber dome by the inclining operation of the operating member is made longer than that of the first rubber dome.

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.

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.

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.

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.

A vehicle switch includes a case having a through-hole through the top face thereof, an operating body, a switch contact, an elastic cover, and a sliding part. The top end of the operating body projects from the through-hole. The operating body is housed in the case vertically movable. The switch contact is brought into and out of electrical contact by the vertical movement of the operating body. The elastic cover covers the through-hole of the case and the top end of the operating body. The sliding part that has a smaller friction coefficient than that of the elastic cover is provided in the top portion of the elastic cover, and covers at least the rim of the top portion of the elastic cover, or protrudes from the top face of the top portion and has an arc-shaped curved surface in the outer periphery of the upper rim thereof.

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.

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.

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.

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.

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).

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.

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.

The invention provides a selection controller. The selection controller comprises a motor, a transmission part, and an output part, wherein the motor is connected with the transmission part so as to drive the transmission part to rotate, the transmission part is connected with the output part so as to drive the output part to move when rotating, under driven by the transmission part, the output part moves to a first position or a second position. In the selection controller, mechanical parts transmit the torque, so that the selection controller can select different positions effectively so asto control a rotation speed of a washing machine. The selection controller has a simple structure, and the maintenance cost is lowered.

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.