40results about How to "Avoid Metal Fatigue" patented technology

The invention relates to the field of proximity switches, in particular to a novel magnetic proximity switch. The novel magnetic proximity switch comprises a shell, wherein a movable magnet is arranged inside the shell and can move up and down, a first terminal piece and a second terminal piece are fixedly arranged on the bottom of the interior of the shell side by side with one on the left of the other, a fixed contact is arranged at the upper end of the second terminal piece, an elastic piece is arranged on the first terminal piece, a movable contact is arranged at the outer end of the elastic piece, and the movable contact corresponds to the fixed contact; an assistance rod is arranged in the middle of the interior of the shell and can swing in the shell, an assistance part is arranged at the inner end of the assistance rod, a limiting mechanism is arranged between the assistance rod and the shell, the movable magnet corresponds to the assistance part, an elastic tongue piece is arranged on the elastic piece, and the outer end of the elastic tongue piece abuts against the assistance part. According to the novel magnetic proximity switch, the structural arrangement is reasonable, acting force borne by the elastic tongue piece can be effectively controlled through the limiting mechanism, and the technical problem that in the prior art, metal fatigue and arc discharge are prone to occurrence is solved.

A RF MEMS switch comprising a crossbeam of SiC, supported by at least one leg above a substrate and above a plurality of transmission lines forming a CPW. Bias is provided by at least one layer of metal disposed on a top surface of the SiC crossbeam, such as a layer of chromium followed by a layer of gold, and extending beyond the switch to a biasing pad on the substrate. The switch utilizes stress and conductivity-controlled non-metallic thin cantilevers or bridges, thereby improving the RF characteristics and operational reliability of the switch. The switch can be fabricated with conventional silicon integrated circuit (IC) processing techniques. The design of the switch is very versatile and can be implemented in many transmission line mediums.

The invention discloses a precise instrument placement box. The precise instrument placement box comprises an outer box and an inner box, wherein the outer box is connected with inner box by elastic ropes and elastic members; both of the elastic ropes and the elastic members are horizontally or vertically arranged; eight elastic ropes and four elastic members are provided; the single elastic member is located between two elastic ropes, and one group is formed according to the structure and fixedly connected with the outer box and the inner box respectively; the inner box is further filled with a buffer layer. The precise instrument placement box is capable of preventing the elastic members from generating metal fatigue while protecting for a long time.

In a plasma display module, a flexible substrate is strengthened and a mounting structure for alleviating stresses is provided, thereby preventing the metal fatigue of wirings. In a PDP (Plasma Display Panel) module, a metal plate and a flexible substrate constituting a driver module are provided. On the flexible substrate, wirings not connected to electrodes of the panel (independent linear patterns) are disposed on an outer side of wirings and near an edge portion of the metal plate to which the flexible substrate is attached.

This squirrel-cage motor rotor includes a plurality of conductor bars provided at regular intervals along the circumferential direction of a rotor core, short-circuit rings connected to ends of the conductor bars, and reinforcement covers having axial-direction surfaces being in contact with axial-direction-end surfaces of the short-circuit rings. The reinforcement covers are enclosed by casting in the short-circuit rings. Holding rings are attached to the outer circumferential surfaces of the flange portions of the reinforcement covers and the outer circumferential surfaces of the short-circuit rings by interference fit.

A tube for fixation, which has increased durability and a method of producing the same are provided.Forming by spinning is carried out so as to thin the thickness A of a side wall of a bottomed prime tube 1 of a plastically deformable metal to a thickness of 20 to 50 μm while rotating the bottomed prime tube 1 about the axis thereof and a metal original form 4 is formed. The metal original form 4 formed by spinning is cut to form a metal tube 6. The surface 6a of the metal tube 6 is sandblasted to impart residual compression stress to the surface 6a and to roughen the same. The treated surface is covered with a fluorocarbon resin film 7. The fluorocarbon resin film 7 is then heated to be heat-shrunk and the fluorocarbon resin film 7 is formed on the metal tube 6. Thus, a tube for fixation 8 is formed.

A return spring adjustment apparatus and method of a wave power system. The apparatus comprises return springs (5, 9), a stepper motor (6), transducers (7, 10, 27, 29), a single chip microcomputer control module (8) and a power source. The two ends of the return springs (5, 9), a chassis (12) of the stepper motor, a rotor (11), the two ends of the transducers (7, 10, 27, 29) can all be randomly arranged in series, and connected with a spindle (4) and a frame (22). When a single chip microcomputer detects that the transducers (7, 10, 27, 29) measure that the pulling force is too large or too small, it sends an instruction to the stepper motor (6) to perform adjustment. After the adjustment is completed, the stepper motor (6) stalls and brakes, so that the return springs (5, 9) can work in within a specified range.

A cleaning device capable of eliminating the organic material attached to a mask consisting of metallic film is provided with a first rinse bath and a second rinse bath (21, 22), a vacuum still (30), a first cooler (31), a first backflow tube (101), a first wash tank and a second wash tank (51, 52), a non-pressurized distiller (60), a second cooler (61) and a second backflow tube (102), wherein the rinse baths (21, 22) clean the mask (10) by means of preselected rinse solution; the vacuum still (30) completes vacuum distillation of the rinse solution in the rinse baths (21, 22); the first cooler (31) cools down the vacuum-distilled rinse solution to room temperature; the first backflow tube (101) ensures that the rinse solution cooled down by the first cooler (31) flows back to the second rinse bath (22); the wash tanks (51, 52) wash the mask (10) by means of preselected rinse solution; the non-pressurized distiller (60) completes the distillation of the rinse solution in the wash tanks (51, 52) under ordinary pressure; the second cooler (61) cools down the atmospheric-distilled rinse solution to room temperature; moreover, the second backflow tube (102) ensures that the rinse solution cooled down by the second cooler (61) flows back to the second wash tank (52).

This squirrel-cage motor rotor includes a plurality of conductor bars provided at regular intervals along the circumferential direction of a rotor core, short-circuit rings connected to ends of the conductor bars, and reinforcement covers having axial-direction surfaces being in contact with axial-direction-end surfaces of the short-circuit rings. The reinforcement covers are enclosed by casting in the short-circuit rings. Holding rings are attached to the outer circumferential surfaces of the flange portions of the reinforcement covers and the outer circumferential surfaces of the short-circuit rings by interference fit.

The invention relates to an oil bath feeder controller which comprises a motor continuous and reversing rotation control circuit, wherein the motor continuous and reversing rotation control circuit comprises five relays and a microcontroller. The microcontroller controls the five relays to control the motor continuous rotation and the motor reversing rotation; the five relays are connected with a reverse electromotive force absorbing circuit and a relay contact mechanical interlocking circuit, wherein the reverse electromotive force absorbing circuit is used for inhibiting the reverse electromotive force, and the relay contact mechanical interlocking circuit is used for controlling the motor to be either in a continuous rotation state or in a reversing rotation state. The oil bath feeder controller replaces the application of an alternating current contactor in a traditional controller with the relay and the PCB wire arrangement can be adopted so that volume of the controller is greatly narrowed, and cost is reduced. The microcontroller controls the relays to realize motor continuous rotation and reversing rotation, so that relay contact damage and motor shaft fracture caused by motor instantaneous state switch can be avoided.

An embodiment of the invention provides a light modulator pixel unit and a manufacturing method thereof. The light modulator pixel unit comprises that: an interlayer dielectric layer positioned on a substrate; a cavity in the interlayer dielectric layer; a bottom electrode, a movable electrode and a top electrode which are in the interlayer dielectric layer and have positions corresponding to the position of the cavity; an optical filter which is on the top electrode and is used for converting white light into three-primary-color light. The movable electrode has a light reflecting surface, and the top electrode is a semi-transparent metal film. By utilizing movement of the movable electrode in the cavity, a light modulator can carry out modulation on the three-primary-color light after conversion by the optical filter. The embodiment of the invention solves a problem that a present light modulator pixel unit generally needs to utilize monochromatic light emitted by a monochromatic light source as incident light, and cost of the light modulator pixel unit is reduced.

The invention relates to the technical field of building facilities, in particular to a magnetic force buffer device. The magnetic force buffer device comprises a top pressing block, a bottom supporting plate, a plurality of sets of first magnetic stripes, second magnetic stripes, positioning screw rods and positioning nuts. The top pressing block is located above the bottom supporting plate. Thecross section of the top pressing block and the cross section of the bottom supporting plate are both in a U shape. The top pressing block and the bottom supporting plate are arranged in a matched mode. The first magnetic stripes and the second magnetic stripes are fixed into a recessed cavity of the top pressing block and a recessed cavity of the bottom supporting plate correspondingly. The samemagnetic poles of the first magnetic stripes and the second magnetic stripes are opposite, and thus magnetic repulsive force is formed. The first magnetic stripes and the second magnetic stripes are fixed into the device through the positioning screw rods. The top pressing block is suspended on the bottom supporting plate under the lifting action of the magnetic repulsive force and the limiting action of the positioning screw rods. A lifting space area is formed between the first magnetic stripes and the second magnetic stripes. According to the magnetic force buffer device, the magnetic stripes with the same magnetic poles being opposite are evenly arranged, the magnetic repulsive force is used for replacing elastic force, stable fixation is conducted, the problem of metal fatigue causedby using of elastic parts is avoided, and the stress of the device is stable on the whole.

The invention relates to the technical field of waste collection, and discloses a slow descending device of a dustbin cover. The slow descending device comprises a motor, a master control device and an angle sensing device; the motor is used for being in driving connection with the dustbin cover; the master control device controls forward and backward rotation and braking of the motor; the angle sensing device is used for sensing the rotation angle of the dustbin cover; and the angle sensing device is in communication connection with the master control device, when the dustbin cover is closedto a preset angle, the master control device controls the motor to brake so that the dustbin cover drives the motor to rotate to a closed position. In this way, slow descending of the intelligent dustbin cover is achieved, mechanical structure is reduced, the problems of metal fatigue and rust of a spring in a damping structure are avoided, meanwhile, the structure of the dustbin is more simple, and the size is smaller.

The invention relates to a high-efficiency superheater which is arranged in a superheating flue and comprises a first-stage heating flue and a second-stage heating flue sleeving outside the first-stage heating flue, wherein the first-stage heating flue comprises a flue gas channel A; heat exchange fins A are arranged in the flue gas channel A; an annular heating chamber A is formed in the outer wall of the flue gas channel A; the second-stage heating channel comprises an annular heating chamber B; an annular flue gas channel B is arranged between the inner wall of the annular heating chamber B and the outer wall of the annular heating chamber A; the annular heating chamber B and the annular heating chamber A are communicated through a plurality of connecting pipes; a conical groove is formed in one side, toward the superheating flue, of the superheater; the axis of the conical groove is coaxial with the flue gas channel A; the bottom surface edge of the conical groove is positioned in the outer wall surface of the annular heating chamber B. A dividing wall type heat exchanger with an annular structure replaces an original dividing wall type heat exchanger with an array pipeline structure, so the flowing resistance of high-temperature flue gas flowing in the superheater is reduced.

This invention relates to a new magnetic proximity switch, comprising a shell, wherein a moving magnet that can move up and down is disposed on the upper part in the shell; a first terminal strip and a second terminal strip are fixedly disposed left and right in parallel at the bottom in the shell; a static contact is disposed on the second terminal strip; an elastic piece is disposed on the first terminal strip; a moving contact is disposed at the outer end of the elastic piece; an assistant rod is disposed at the middle part in the shell, an assistant portion is disposed at the inner end of the assistant rod, a limiting mechanism is disposed between the assistant rod and the shell, an elastic tongue piece is disposed on the elastic piece, and the outer end of the elastic tongue piece is disposed against the assistant portion.

A cleaning device capable of removing organic materials adhering to a mask made of a metal thin film. The cleaning device of the present invention has: the first and the second cleaning tanks (21, 22) for cleaning the mask (10) by a predetermined cleaning solution; Distiller (30); the first cooler (31) that cools the cleaning solution of vacuum distillation to room temperature; the cleaning solution cooled by the first cooler (31) is returned to the first cleaning tank (22) Return pipe (101); the first and second washing tanks (51, 52) for washing the mask (10) with a predetermined washing liquid; distilling the washing liquid of the washing tanks (51, 52) under normal pressure Atmospheric distiller (60); the 2nd cooler (61) that the rinsing liquid of atmospheric distillation is cooled to room temperature; Make the rinsing liquid cooled by the 2nd cooler (61) return to the 2nd rinsing tank (52 ) of the second return pipe (102).

The invention discloses a shock absorption type physical distribution trolley with a goods clamping and fixing function. The shock absorption type physical distribution trolley includes a curved bottom frame. The middle of the curved bottom frame is connected with a shock absorption horizontal beam in a welding mode. The right end of the curved bottom frame is connected with a pushing rod supporting frame in a welding mode. The lower surface of the curved bottom frame is connected with a universal wheel rotation frame in a welding mode. The upper surface of the curved bottom frame is connectedwith a supporting rod in a welding mode. The front surface of the side wall of the universal wheel rotation frame is connected with a shock absorption ring protection cover in a welding mode. The universal wheel rotation frame is internally provided with a shock absorption ring inner cavity. The inner surface of the shock absorption ring inner cavity is connected with six flexible springs evenlyin a welding mode. Through an arch structure on the curved bottom frame and by using toughness of metal, part of bumpy impacting force is absorbed. Meanwhile, the bumpy impacting force is absorbed inan assistant mode. A shock absorption ring on the outer part of a rolling wheel rotation shaft absorbs bump from the rolling wheel. And meanwhile, a restraining rod between bearing plates makes the flexible springs bear the impacting force simultaneously, and the problem that only one spring bears force and has metal fatigue is prevented.

The embodiment of the invention provides an MEMS (Micro Electro Mechanical System) optical modulator pixel unit and a making method thereof. The optical modulator pixel unit comprises a cavity positioned in an interpoly dielectric layer, a movable electrode positioned in the cavity, a top electrode positioned on the cavity, a bottom electrode positioned below the cavity, and a filter arranged on the top electrode, wherein the optical modulator pixel unit is used for modulating white light by using a light diffraction principle. The embodiment of the invention solves the problem that the traditional optical modulator pixel unit commonly utilizes a single-color light source to send single-color light rays to be used as incident light rays, thus the cost of the optical modulator pixel unit is reduced.

A pure-electric flying car is composed through combination of wheels, a car frame, a car body, a propeller, an engine, and wings which are in a hinged connection with the car body through single-hole suspension. The car is characterized in that the wheels are driven by an electric power system composed through combination of a power motor, a power storage battery and a speed-adjusting controller; steering of the wheels is controlled by a manual-control steering mechanism; the propeller (22) which provides horizontal flying power and a propeller motor (21) are disposed on the rear part of the flying car; and the wings (16) are folded wings and constitute the pure-electric flying car.

The invention relates to the technical field of magnetic switches, in particular to a non-magnetic position detection sensor. The non-magnetic position detection sensor comprises a hollow plastic box, wherein an operating sheet is transversely arranged in an inner cavity of the plastic box; a silver connection joint is arranged on the operating sheet, and a conductive sheet which is in on-off fit with the silver connection joint is arranged below the silver connection joint; a magnetizer is arranged in the plastic box, and is connected with the other end of the operating sheet to realize integrated linkage setting; a buffering body matched with the magnetizer is arranged in the plastic box below the magnetizer. The non-magnetic position detection sensor is reasonable in structure; external magnetism drives the operating sheet to be matched with the conductive sheet to realize on and off change; by means of shock absorption and reset driving of the buffering body, metal fatigue and impact of the operating sheet can be avoided, so that the working stability of the sensor is improved, and the service life is prolonged; the operating sheet can bear magnetic induction, operation driving and electric connection action; a magnetism fixing frame can realize a magnetism aggregation effect through a magnetic shielding material, so that the sensitivity and the accuracy of position detection are improved; the non-magnetic position detection sensor is simple in whole structure, convenient to process and assemble and high in control precision, and the whole cost of the sensor is reduced.

The invention discloses electronic equipment. The electronic equipment comprises a frame body; the circuit board is arranged on the frame body; the key is movably arranged on the frame body, a first conductive part and a second conductive part are arranged on the key, and the first conductive part and the second conductive part are insulated from each other; one end of the first vibrating needle is electrically connected with the first area of the circuit board; one end of the second vibrating needle is connected with the second area of the circuit board; when the key is in a first state, the other end of the first vibrating needle is electrically connected with the first conductive part, and the other end of the second vibrating needle is electrically connected with the second conductive part; and when the key is in the second state, the other end of the first vibrating needle and the other end of the second vibrating needle are electrically connected with the second conductive part, and when the key is in the first state and the second state, the levels of the second vibrating needle are different. The use state of the key can be judged through the level of the second elastic needle, different responses can be made according to the state of the key, metal fatigue of the metal elastic sheet can be avoided, and the performance of the ECG is guaranteed.

An embodiment of the invention provides a light modulator pixel unit and a manufacturing method thereof. The light modulator pixel unit comprises that: an interlayer dielectric layer positioned on a substrate; a cavity in the interlayer dielectric layer; a bottom electrode, a movable electrode and a top electrode which are in the interlayer dielectric layer and have positions corresponding to the position of the cavity; an optical filter which is on the top electrode and is used for converting white light into three-primary-color light. The movable electrode has a light reflecting surface, and the top electrode is a semi-transparent metal film. By utilizing movement of the movable electrode in the cavity, a light modulator can carry out modulation on the three-primary-color light after conversion by the optical filter. The embodiment of the invention solves a problem that a present light modulator pixel unit generally needs to utilize monochromatic light emitted by a monochromatic light source as incident light, and cost of the light modulator pixel unit is reduced.

The invention relates to the field of solid rocket engines, and discloses a flexible joint used at wide temperature range. The flexible joint comprises a front flange, a rear flange, multiple layers of elastic pieces and multiple layers of reinforcing pieces, and the front flange and the rear flange are connected through the multiple layers of elastic pieces and the multiple layers of reinforcing pieces; each elastic piece is made of an addition type liquid silicone rubber material; each reinforcing piece is made of a high-strength carbon / phenolic aldehyde composite material; the elastic pieces and the reinforcing pieces are both of a spherical annular sheet structure, and the multiple layers of reinforcing pieces and the multiple layers of elastic pieces are alternately bonded; and the shortest arc length of one reinforcing piece is larger than that of one elastic piece, and the portion, longer than one elastic piece, of one reinforcing piece is filled with dynamic sealing unvulcanized putty. According to the flexible joint used at wide temperature range and a flexible spray pipe, the stability and the safety performance of the elastic pieces and the reinforcing pieces are better, and better environmental adaptability is achieved.

The invention belongs to the technical field of weight detection, and relates to an automobile overweight detection device for a municipal bridge. The automobile overweight detection device comprises a reservoir, a measuring mechanism and a load-bearing mechanism, wherein the measuring mechanism is mounted on the left side of the reservoir, the load-bearing mechanism is mounted on the upper half section in the reservoir and comprises a load-bearing upper plate, a load-bearing lower plate, a load-bearing air cylinder and pressure-reducing springs, the bottom of the load-bearing upper plate is fixedly connected with the top of the load-bearing air cylinder, the top of the load-bearing lower plate is fixedly connected with the bottom of the load-bearing air cylinder, there are two sets of pressure-reducing springs, and the two sets of pressure-reducing springs are arranged on the two sides of the load-bearing air cylinder. The invention has the advantage that the device solves the problems that a weight platform of the existing wagon balance is easy to shift due to braking, and the accuracy and the service life of the wagon balance in the using process are further influenced.

A pure-electric flying car is composed through combination of wheels, a car frame, a car body, a propeller, an engine, and wings which are in a hinged connection with the car body through single-hole suspension. The car is characterized in that the wheels are driven by an electric power system composed through combination of a power motor, a power storage battery and a speed-adjusting controller; steering of the wheels is controlled by a manual-control steering mechanism; the propeller (22) which provides horizontal flying power and a propeller motor (21) are disposed on the rear part of the flying car; and the wings (16) are folded wings and constitute the pure-electric flying car.

Provided is a slider for a slide fastener, whereby several bodies can be obtained in one casting process and production costs can be reduced. A cover member (50) has a pair of right and left front-side engagement pieces (56) that engage with a front-side pillar section (30) and a pair of right and left rear-side engagement pieces (57) that engage with a rear-side pillar section (40). Front-side recessed sections for engagement (31) having a surface facing the upper surface of the front-side engagement pieces (56) are formed in the right and left side surfaces of the front-side pillar section (30); rear-side recessed sections for engagement (41) having a surface facing the upper surface of the rear-side engagement pieces (57) are formed in the right and left side surfaces of the rear-side pillar section (40); and the front-side and rear-side recessed sections for engagement (31, 41) are formed penetrating along the front-rear direction of the bodies (20).

The invention discloses a shock absorption type physical distribution trolley with a goods clamping and fixing function. The shock absorption type physical distribution trolley includes a curved bottom frame. The middle of the curved bottom frame is connected with a shock absorption horizontal beam in a welding mode. The right end of the curved bottom frame is connected with a pushing rod supporting frame in a welding mode. The lower surface of the curved bottom frame is connected with a universal wheel rotation frame in a welding mode. The upper surface of the curved bottom frame is connectedwith a supporting rod in a welding mode. The front surface of the side wall of the universal wheel rotation frame is connected with a shock absorption ring protection cover in a welding mode. The universal wheel rotation frame is internally provided with a shock absorption ring inner cavity. The inner surface of the shock absorption ring inner cavity is connected with six flexible springs evenlyin a welding mode. Through an arch structure on the curved bottom frame and by using toughness of metal, part of bumpy impacting force is absorbed. Meanwhile, the bumpy impacting force is absorbed inan assistant mode. A shock absorption ring on the outer part of a rolling wheel rotation shaft absorbs bump from the rolling wheel. And meanwhile, a restraining rod between bearing plates makes the flexible springs bear the impacting force simultaneously, and the problem that only one spring bears force and has metal fatigue is prevented.