148results about "Contact mechanisms" patented technology

A backlight module for a lighting keyboard having a specific function key comprises a lighting board, a light guide panel and a shielding sheet. The shielding sheet, the light guide panel and the lighting board are stacked from top to bottom. The lighting board has first and second light emitting units. The light guide panel has first and second light guide holes. The first light emitting unit is in the first light guide hole. The second light emitting unit is in the second light guide hole. The shielding sheet has a blocking portion. The blocking portion overlaps in projection with the first light emitting unit and the second light emitting unit. The light guide panel has a light guide panel slot. The light guide panel slot overlaps in projection with the blocking portion and a boundary of a keycap projection area of the specific function key.

Disclosed is a device comprising a housing that comprises components; a cover configured to be positioned on the housing to restrict access to the components when the cover is in the closed position; a capacitor and a fuse, the capacitor and fuse being dimensioned so that the fuse blows when the capacitor discharges through the fuse; a capacitor charging circuit configured to charge the capacitor when the device is powered up; a discharge circuit for discharging the capacitor through the fuse, said discharge circuit comprising a first switch cooperating with a part integral with the cover in order to prevent the discharging of the capacitor when the cover is in the closed position; and to allow the capacitor to discharge through the fuse when the cover is in the open position.

A safety switch for controlling the access to industrial machines or plants comprises a switching device (2) housing switching means and an actuator device (3) having an operating pin (8) to interact with the switching means upon the opening / closing of the access, a locking / unlocking mechanism (14) housed in the switching device (2) and provided with a locking pin (15) movable between a locking position and an unlocking position of the access, an operating pin (8) associated with the actuator device (3) to interact with the locking pin (15) to hold the actuator device (3) fastened to said switching device (2), which, in turn, houses a locking element with controlled deformation, mechanically connected to the locking pin (15) and sized to deform plastically upon the application on the locking pin (15) of a deformation stress higher than a predetermined threshold value.

A lighting keyboard comprises a first key and a second key, with a gap region between them. A backlight module for the lighting keyboard comprises a lighting board having a light emitting unit, a light guide panel, and a shielding sheet having a light-reducing pattern corresponding to the first key, which are stacked from top to bottom. The backlight module has a colored material layer on the shielding sheet or the light guide panel and vertically overlapping with the gap region. A light of the light emitting unit is guided by the light guide panel to pass through the light-reducing pattern and form a first color light upward from an inner outlet of the first key, and further to pass through the colored material layer and form a second color light different from the first color light upward from an inner outlet and a boundary of the second key.

A key structure includes a base plate, a keycap, a connecting assembly, a protrusion and a limiting member. The connecting assembly includes a first frame and a second frame pivotally connected to each other. Two opposite ends of the first frame are movably connected to the base plate and the keycap, respectively, and two opposite ends of the second frame are movably connected to the base plate and the keycap, respectively, to drive the keycap upward and downward relative to the base plate. The protrusion is disposed on a sidewall of the first frame or a sidewall of the second frame. The limiting member corresponds in position to the protrusion. When the keycap is at a maximum height, the protrusion abuts against the limiting member.

The invention relates to the technical field of power control, in particular to a linkage type three-phase phase selection circuit breaker switching system, which comprises a control device, an A-phase opening and closing operation mechanism, and a B-phase opening and closing operation mechanism and a C-phase opening and closing operation mechanism which are positioned on two sides of the A-phase opening and closing operation mechanism, an A-phase driving mechanism is arranged on the A-phase opening and closing operation mechanism; a first cam is arranged below the B-phase opening and closing operation mechanism, and a second cam is arranged below the C-phase opening and closing operation mechanism. A first synchronizing mechanism is arranged between the A-phase opening and closing operation mechanism and the first cam, and a second synchronizing mechanism is arranged between the A-phase opening and closing operation mechanism and the second cam; when a control device controls an A-phase driving mechanism to drive an A-phase opening and closing operation mechanism to perform closing / opening, a first cam and a second cam are simultaneously driven through a first synchronizing mechanism and a second synchronizing mechanism; therefore, the B-phase opening and closing operation mechanism and the C-phase opening and closing operation mechanism are switched on / off at the same time after the A-phase opening and closing operation mechanism is switched on / off within the specified delay time. And the reliability of the system is improved while the inrush current is effectively inhibited.

The utility model discloses a two-path signal neutral gear switch for an automobile, which comprises a switch shell, a plug assembly is arranged at the bottom end of the switch shell, a top rod is arranged at the top end of the switch shell, the plug assembly comprises a plug base and a plug assembly, and the plug assembly comprises four binding posts, a pair of static sheet supports, a pair of conductive springs and a double-plug moving sheet. A pair of binding posts is respectively connected with a static sheet support, a static sheet contact is installed on the static sheet support, the other pair of binding posts is respectively connected with a guide spring, a pair of red copper sheets and a pair of moving sheet contacts are arranged on the upper surface of the double-insertion moving sheet, a pair of conductive insertion rods are arranged on the lower surface of the double-insertion moving sheet, one end of each red copper sheet is connected with the corresponding moving sheet contact, and the other end of each conductive insertion rod is connected with the corresponding moving sheet contact. The other end of the red copper sheet is connected with the conductive insertion rod, the conductive insertion rod is connected with the top end of the conductive spring in an inserted mode, the movable sheet contact makes contact with the static sheet contact, the bottom end of the ejector rod is close to the upper surface of the double-insertion movable sheet, two paths of on-off signals which do not interfere with each other are sent out through communication of the pair of rigid contacts, and the situation of virtual connection of the contacts is avoided.

A key assembling structure comprises a scissor type connecting assembly and a bottom plate. The scissor-type connecting assembly comprises an inner frame and an outer frame which are arranged to swing relatively, the inner frame is provided with a first shaft, and the outer frame is provided with a second shaft. The bottom plate is arranged below the scissor type connecting assembly and is provided with a group of first clamping hooks corresponding to the first shaft and a group of second clamping hooks corresponding to the second shaft, and the group of first clamping hooks or the group of second clamping hooks comprise two edge clamping hooks and at least one auxiliary clamping hook; the clamping parts extend outwards and are used for being clamped with the two edge parts and the middle part of the corresponding first shaft or second shaft, and the middle part is arranged between the two edge parts.

The present invention discloses a remote switch-off mechanism and a rotary switch, and relates to the field of electrical technologies. A housing, an energy storage component, and a tripping component are provided. The energy storage component includes a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft, an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion. The latch includes a hinged portion hinged to the housing, a limiting portion for limiting the second end of the energy storage spring, and a tripping portion that cooperates with the tripping component, and an elastic member is disposed between the latch and the housing, so that the tripping portion has a trend of moving toward the tripping component. The tripping component is configured to enable the limiting portion to release limiting on the second end of the energy storage spring, so that the rotating shaft rotates to a switch-off position. According to the remote switch-off mechanism and the rotary switch in this application, response time during switching of the rotary switch can be improved.

The utility model discloses a kind of switch overrange accurate control device, including switch base, static contact and magnetic drive mechanism being installed on switch base, be installed on switch base, and with the movable contact assembly of magnetic drive mechanism swing connection;Movable contact assembly includes multiple movable contact, and each movable contact is equipped with overrange adjusting structure, overrange adjusting structure can drive corresponding movable contact to move, the movement range of movable contact is adjusted;Magnetic drive mechanism can be driven movable contact to rotate by electromagnetic excitation and be closed with static contact, or with static contact is openedThe utility model is provided with overrange adjusting structure, and overrange adjusting structure and movable contact are one-to-one corresponding by cooperation, the overrange stroke of each movable contact can be individually adjusted, support every pole overrange amount independent adjustment, improve the action synchronism of multiple-pole contact, reduce the influence of machining accuracy and assembly error to overrange.

The utility model provides a keyboard key device. The keyboard key device comprises a circuit board unit, a positioning unit, a scissor foot unit, an elastic piece and a key cap. The positioning unit comprises an annular frame piece, a pair of first pivot joint sets and a pair of second pivot joint sets, each first pivot joint set is provided with at least one first connecting plate and a first pivot guide part, and each second pivot joint set is provided with at least one second connecting plate and a second pivot guide part. The scissor foot unit comprises a first frame piece and a second frame piece. The elastic piece is arranged on the circuit board unit and arranged in the scissor foot unit in a penetrating mode. The key cap is pivoted to the scissor foot unit. The scissor foot unit is installed on the positioning unit in the direction from the bottom face of the annular frame part to the top face of the annular frame part, manpower, equipment, the cost of a whole set of jigs and the like in the assembling process can be reduced, the yield can be increased, and the productivity can be improved.

A key structure, including a keycap, a bottom plate assembly, a light source, and a scissor assembly, is provided in the disclosure. The keycap has a light-transmitting region. The bottom plate assembly is located below the keycap. The light source is disposed on the bottom plate assembly. The scissor assembly is disposed between the keycap and the bottom plate assembly and is adapted to move in a first direction. The scissor assembly includes a first scissor and a second scissor pivotally connected to each other. Each of the first scissor and the second scissor is formed with an opening on a same side. The opening corresponds to the light source and the light-transmitting region in the first direction. Such layout facilitates a reduction in the size of the key structure and is advantageous for product miniaturization.

A keyboard includes a bottom plate, a plurality of keys, and a backlight module. The bottom plate has a short axis direction and a long axis direction. The keys are disposed on the bottom plate. The backlight module is disposed on one side of the bottom plate. The backlight module includes a light shielding sheet, a light guide plate, and a reflective sheet. The light shielding sheet includes an upper surface and a lower surface, and the upper surface faces the bottom plate. The light guide plate is disposed on the lower surface of the light shielding sheet. The light guide plate includes a plurality of light guide structures, and the light guide structures correspond to the keys, respectively. Each of the light guide structures includes a ring-shaped portion and at least one continuous fold line portion. The continuous fold line portion is connected to the ring-shaped portion, and the ring-shaped portion is formed by a plurality of bending portions. The reflective sheet is disposed below the light guide plate.

A mechanical switch includes a mechanical contact, and a coil that receives supply of a drive current from a drive power supply and opens or closes the mechanical contact. The drive power supply includes a capacitor, and a switch connected between the capacitor and the coil. The switch is temporarily turned on in order to turn on / off the mechanical switch, and supplies the drive current from the capacitor to the coil. The drive power supply further includes a charging circuit that charges the capacitor in an OFF period of the switch, a detection circuit that detects a charging current and a voltage of the capacitor, and a diagnosis circuit that diagnoses a degradation state of the capacitor from the detected charging current and voltage.

A device includes an electro-mechanical switching device having an open-circuit and closed-circuit conditions and a path of least resistance having a path input and a path output with the switching device between the input and the output. The device includes a bypass power switch device that comprises a solid-state circuit interrupter and that is configured to conduct current between the input and the output in response to an open-circuit condition of the switching device. The device includes a current sensor that is connected to the output and configured to detect a fault current event. The device includes an actuator that is coupled to the switching device and a controller that is configured to generate a trigger signal to activate the actuator to cause the open-circuit condition of the switching device and to interrupt the fault current event by the power switch device, based on the detected fault current event.

A device for detecting a key press of a keyboard, including a key module, a circuit substrate, a planar coil arranged on or in the circuit substrate, and at least one damping element, wherein the at least one damping element for damping the planar coil is movably arranged in the key module between a rest position and an actuation position, wherein the damping element executes a first actuating movement during the movement in the direction of the actuation position and executes a second actuating movement during the movement towards the rest position, and wherein the device outputs at least one electrical signal when carrying out the first actuating movement and / or the second actuating movement. A keyboard including one or more such devices and to a method for detecting a key press of a key module with such a device.

An electrical wiring device includes a traveler conductor with a bracing portion that couples the traveler conductor to a support structure formed in the housing of the device. The bracing portion and the support structure facilitate an interference fit between the bracing portion and the support structure. A flipper conductor of the wiring device is structured to be actuated between a first position and a second position, in order to supply power and cut off power to a load electrically connected to the wiring device. When the flipper conductor moves from the second position to the first position, there is an impact on the traveler conductor. The bracing portion has angled cuts that enable the bracing portion to tilt slightly back and forth upon impact from the flipper conductor. The angled cuts and the thermoplastic material properties of the support structure significantly reduce bouncing of the overall traveler conductor structure.

The present invention provides a toilet rotating shaft connection structure, including: an insertion shaft and a hinge, wherein the insertion shaft is mounted on a movement cover, and the insertion shaft is provided with at least one first electrical conductor; and the hinge is provided with a shaft sleeve and a first rotating shaft, wherein the first rotating shaft is provided with at least one second electrical conductor; and the shaft sleeve is provided with a first connection hole and at least one third electrical conductor, the first connection hole can sleeve the insertion shaft so that the third electrical conductor abuts against the second electrical conductor and the first electrical conductor, and the second electrical conductor maintains abutment against the third electrical conductor when the first rotating shaft drives the second electrical conductor to rotate.

A switch assembly for a valve actuator may include a bracket, a rotatable switch rotatably coupled to the bracket at an adjustable angle, a fixed switch fixedly attached to the bracket, an arm rotatably coupled to the bracket, and an adjustable switch trigger coupled to the arm. The rotatable switch may be tripped by the valve actuator and a trip point of the rotatable switch may be calibrated by setting the adjustable angle. The fixed switch may be tripped by a switch trigger on the arm and a trip point of the fixed switch may be set by adjusting the switch trigger relative to the arm. The assembly may include a calibration fixture for calibrating the switch assembly to the valve actuator independent of the valve actuator.

The utility model provides a clutch mechanism and a circuit breaker. The clutch mechanism comprises a first operation structure, a second operation structure and a transmission wheel. A motor in the first operation structure drives the first driving wheel to rotate. And a first structure block arranged on the first driving wheel is clamped with an inner tooth groove in the transmission wheel, so that the first driving wheel drives the transmission wheel to rotate, and the circuit breaker is electrically controlled to perform switching-on and switching-off actions. The second operating structure may include a handle and a second drive wheel. A handle in the second operation structure drives the second driving wheel to rotate. And a second structural block arranged on the second driving wheel is clamped with an inner tooth groove in the transmission wheel, so that the second driving wheel drives the transmission wheel to rotate, and the circuit breaker is manually controlled to perform opening and closing actions. The first sliding groove is formed in the first driving wheel, the second sliding groove is formed in the second driving wheel, the first driving wheel and the second driving wheel are prevented from rotating at the same time, and therefore the safety of the circuit breaker is guaranteed, and meanwhile the production cost of the circuit breaker is reduced.

The utility model relates to the technical field of automobile steering wheels, and discloses an automobile multifunctional steering wheel control switch which comprises a shell, connecting boxes are arranged on the left side and the right side of the shell respectively, first sliding grooves are formed in the front sides of the two connecting boxes respectively, and arc-shaped plates are slidably connected into the two first sliding grooves respectively. Square boxes are fixedly connected to the front sides of the two arc-shaped plates, second sliding grooves are formed in the rear sides of the two arc-shaped plates, cross rods are slidably connected into the two second sliding grooves, connecting blocks are fixedly connected to the front sides of the inner walls of the two connecting boxes, and the rear sides of the two connecting blocks are rotatably connected with the cross rods. According to the automobile steering wheel control switch, the effects that the arc-shaped plate drives the ratchet wheel to rotate and the limiting block prevents the arc-shaped plate from sliding downwards are achieved through the connecting block, the ratchet wheel, the limiting block on the top, the cross rod, the second sliding groove in the arc-shaped plate and the rotary knob, and the problem that the position of a control switch on an existing automobile steering wheel cannot be adjusted is solved.

An illuminated keyswitch structure and an illuminating module thereof are provided. The illuminating module includes a drive circuit board having a reflector layer disposed thereon, a light-emitting part disposed on the drive circuit board and proximate to the reflector layer, a covering structure having an island-shaped covering portion, and a spacer adhered between the covering structure and the drive circuit board and having a through hole and an adhesive-less clearance fringe at least partially surrounding the through hole, wherein the island-shaped covering portion covers above the light-emitting part and the through hole.

A sleeve or case for a mobile device, such as a smartphone or tablet or other types of hand-held device or mobile smart device, has a sleeve part for at least partially enclosing the mobile device and an input device arranged in the sleeve part for controlling the mobile device which can be received in the sleeve part. The input device includes a movable control element and a magnetorheological brake. Any movement of the control element can be selectively damped by way of the magnetorheological brake.

This application provides a key structure, keyboard, and electronic device. The key structure includes a keycap, a support component, and a base plate. The base plate includes a thin-film circuit board. The two ends of the support component are movably connected to the base plate and the keycap, respectively. The support component includes a frustum-shaped elastomer disposed between the thin-film circuit board and the keycap. The elastomer stores energy when the keycap is pressed and resets the keycap when it is released. When the upper and lower parts of the elastomer abut against the thin-film circuit board on the base plate, the contact portion of the thin-film circuit board is triggered. A first relief groove is provided on the back of the keycap. When the elastomer is compressed and deformed, the upward protrusion of the elastomer can be accommodated in the first relief groove, reducing interference between the elastomer and the keycap and thus reducing fatigue damage to the elastomer, improving the service life of the elastomer, reducing the impact on key function caused by the thinning of the elastomer, achieving a thinner and lighter electronic device, and ensuring that the key structure has a sufficiently long key travel, thus improving the tactile feel of the key structure.

An actuator for actuating a switch of a powered device having a plurality of positions in which the actuator is magnetically held in position. The actuator includes a first actuator portion including a magnet and a first magnetic element having a first plurality of limbs, whereby magnetic flux of the magnet is directed through the first plurality of limbs; and a second actuator portion including a second magnetic element having a second plurality of limbs for receiving the magnetic flux from the first plurality of limbs. The actuator has a plurality of positions in which limbs of the first plurality of limbs align with limbs of the second plurality of limbs thereby to couple the magnetic flux in a flux loop through two limbs of the first plurality of limbs of the first magnetic element and two limbs of the second plurality of limbs of the second magnetic element.

A safety switch capable of improving visibility of display of a detection result of an anomaly detected by the safety switch is provided. The safety switch (200) includes a sensor body (210) and an actuator (250). The sensor body (210) includes a detection unit that detects the actuator (250) when the actuator (250) is disposed at a predetermined position with respect to the sensor body (210), and a light projection unit configured to project light in accordance with a detection result of the detection unit. The actuator (250) includes a light emission unit configured to emit visible light in response to receiving the light projected by the light projection unit.

The application discloses a kind of multi-circle output band mechanical tripping device's electric mechanism, it is related to electric control technical field, including shell, input structure, transmission structure, signal output and indicating structure and manual locking structure, the inside one end of shell is provided with input structure, one end of input structure is provided with transmission structure, one end of transmission structure is provided with signal output and indicating structure, the other end of input structure is provided with manual locking structure.The application is provided with clutch, the output stroke of mechanism is guaranteed by clutch, by adjusting the connecting sleeve inside clutch, the adjustment of mechanism output stroke can be realized, and clutch is only used as transmission component, only in the terminal of output stroke position can clutch function be realized, so that the slip of clutch in the working process can be avoided, and the stroke switch is only used as the function of cutting off power supply, so that the damage of electric element due to excessive current caused by electrical braking and the switch and damage of mechanism in the process of motor inertia can be avoided.

The present invention discloses a remote switch-off mechanism and a rotary switch, and relates to the field of electrical technologies. A housing, an energy storage component, and a tripping component are provided. The energy storage component includes a latch, an energy storage spring, a rotating shaft, and an energy storage panel connected to the rotating shaft, an abutting portion is disposed on the energy storage panel, a first end of the energy storage spring is clamped to the housing, and a second end of the energy storage spring abuts against the abutting portion. The latch includes a hinged portion hinged to the housing, a limiting portion for limiting the second end of the energy storage spring, and a tripping portion that cooperates with the tripping component, and an elastic member is disposed between the latch and the housing, so that the tripping portion has a trend of moving toward the tripping component. The tripping component is configured to enable the limiting portion to release limiting on the second end of the energy storage spring, so that the rotating shaft rotates to a switch-off position. According to the remote switch-off mechanism and the rotary switch in this application, response time during switching of the rotary switch can be improved.