21 results about "Moving magnet" patented technology

This utility model belongs to the field of linear motor assembly technology, specifically relating to an auxiliary device for installing the stator of a moving magnet linear motor. It includes a linear motor, a support mechanism, and an adjustment mechanism. The linear motor includes a motor base, a motor top cover, a lower coil stator, a guide rail, a magnet mover, and an upper coil stator. The motor top cover is connected to the motor base, and the upper coil stator is installed at the bottom of the motor top cover. The lower coil stator is installed inside the motor base, and the guide rail is installed on top of the motor base. The magnet mover is positioned between the upper and lower coil stators and cooperates with the guide rail. An adjustment mechanism is installed on the support mechanism and connected to the motor top cover. The adjustment mechanism moves in conjunction with the support mechanism to adjust the distance between the upper coil stator and the magnet mover. The adjustment mechanism is used to adjust the position of the upper coil stator in the horizontal plane to achieve the installation of the linear motor. This utility model can prevent magnet collision and damage during installation, ensuring installation accuracy.

The application relates to a mechanism for outputting energy generated by magnetic interaction, which comprises a shell, a fixed magnet fixed in the shell, a moving assembly arranged in the shell, a magnetic pole direction adjusting assembly installed on the moving assembly, and a moving magnet installed on the magnetic pole direction adjusting assembly; the magnetic pole direction adjusting assembly is used for adjusting the directions of two poles of the moving magnet during movement of the moving magnet; the moving magnet cooperates with the fixed magnet and is used for driving the moving assembly to reciprocate along the length direction of the two poles of the fixed magnet on the side of the fixed magnet which is not in the pole direction during the process of repelling between the same poles and attracting between different poles. The mechanism for outputting energy generated by magnetic interaction can reduce energy loss of magnetic force doing negative work by timely adjusting the pole direction of the moving magnet during interaction between the moving magnet and the fixed magnet, so that the magnetic interaction can fully accumulate energy and then the energy can be output.

The utility model relates to commodity display stand technical field, concretely is a screen product turntable, include: base, base includes mounting panel, and the transmission shaft is rotationally installed in the mounting panel centre, drive component, drive component includes power source, and power source passes through the lifting structure and is installed at the mounting panel bottom surface, turntable, and the transmission shaft top of turntable is clamped, is used for bearing commodity. The utility model, utilize magnetic coupler and connect power source output shaft and transmission shaft, realize zero contact transmission, reduce working noise, no contact transmission, can be convenient for operator to stop turntable rotation display details at any time, will not influence power source work, will not heat, through change driven magnetic ring and insert the depth of initiative magnetic ring, change transmission torque, can adapt to different weight commodity, transmission structure is simple and need not maintain.

An energy conversion system including moving magnets, having a first tank, a combustion chamber, a gas turbine and a compressor. The energy conversion system also has a second tank and an electromotive force generator, the latter being connected at a first end to the second tank and at a second end to the first tank, and comprising a first solenoid, a second solenoid, a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, an eighth valve, a first magnet and a second magnet. The first magnet is able to slide between two ends of the first solenoid, while the second magnet is able to slide between two ends of the second solenoid.

The application discloses a magnetic suspension friction-electromagnetic hybrid type in-vivo implant power generation device, and belongs to the technical field of biomedical energy sources. The device is composed of a biocompatible shell, a magnetic suspension vibration subsystem, a coil and a friction nano power generation unit. The magnetic suspension vibration subsystem is composed of two same first magnets fixed on the upper and lower parts of the shell and a suspension vibrator in which a second magnet is embedded, and the vibrator is suspended by using magnetic repulsion. The device can passively collect mechanical energy generated by human body movement, and can be actively driven by an external variable magnetic field, so that the suspension vibrator moves, thereby exciting the friction power generation unit (a friction layer and an electrode layer) and the electromagnetic power generation unit (an induction coil and a moving magnet) to generate electric energy. The application combines the advantages of friction power generation and electromagnetic power generation, has the characteristics of high energy collection efficiency, good reliability, long service life and active energy supply, and effectively solves the problem of continuous power supply of implantable devices.

The utility model discloses a kind of direct-drive gravity energy storage devices of moving magnet, belong to gravity energy storage technical field, comprising: direct-drive conveying system and energy storage unit;Direct-drive conveying system includes alternating current network, energy storage converter, direct-drive motor unit and several secondary mover carriers, energy storage converter one end is electrically connected with alternating current network, and the other end is electrically connected with direct-drive motor unit through direct current bus;The device is through direct-drive conveying system and energy storage unit and carries out efficient bidirectional conversion to electric energy and potential energy, realizes multiple movers simultaneous movement, improves the space efficiency ratio of gravity energy storage;And compared with traditional energy storage mode, remove the superfluous movement intermediate mechanism, reduce unnecessary parts and connection, effectively save installation space, reduce maintenance difficulty and cost, so that it can be applied in more extensive site conditions.

The utility model discloses a direct current contactor, including the casing, the casing top is fixed with the ceramic cover, and the ceramic cover top is fixed with the outgoing end, the casing is vertically passed to have the push rod, and the push rod top is fixed with the moving piece, and the compression spring is installed between the moving piece and the casing top surface, the push rod bottom is connected with the moving magnet, and the coil frame that is wound with the electromagnetic coil is installed to the moving magnet outer periphery, and the static magnet is installed above the moving magnet. The utility model keeps the closing, need not to give the coil power supply continuously, saves the energy, and the direct current contactor is not easy to make the temperature heat failure of causing, when the opening, electromagnetic repulsion and spring reaction force open together, in the overstroke, the opening force is bigger, and the contactor contact obtains higher rigid separation speed, and the opening speed is faster.

The application belongs to the field of submerged liquid pumps, and provides a liquid ammonia submerged liquid pump with a self-balancing assembly, which comprises a pump body, a long rod bolt, a pump suction pipe, a motor, a motor shaft, a magnetic coupling, a pump shaft, a multi-stage impeller, an inducer and a self-balancing assembly. The magnetic coupling comprises a driving magnetic rotor, a driven magnetic rotor and a spacer sleeve. One end of the spacer sleeve is directed towards the driving magnetic rotor and seals the space where the driving magnetic rotor is located. The other end of the spacer sleeve is directed towards the multi-stage impeller. The self-balancing assembly comprises a balancing flow channel. An active sleeve is arranged at the output end of the balancing flow channel. An active nozzle in communication with the balancing flow channel is arranged on the active sleeve. A normally closed port is arranged in the interior of the active nozzle. A branch port for connecting the normally closed port is arranged on the pump suction pipe. First and second balancing springs are arranged at the top and bottom of the active sleeve, respectively. The application has the advantages of reasonable design, good self-balancing performance, high space utilization rate and improved comprehensive utilization rate of the pump, and is suitable for large-scale promotion.

The utility model provides a kind of magnetic shaft button, including key shaft, metal magnetic conducting sheet, button shell and two axial magnetization identical magnets.The metal magnetic conducting sheet is fixedly arranged in the upper end of button shell, and the middle hole is opened in it.The one end of the key shaft is set in button shell through the middle hole of the metal magnetic conducting sheet, and the two magnets are symmetrically installed on the pair of outer side surfaces of the shaft body of the key shaft below the metal magnetic conducting sheet.The magnetic shaft button is recovered to the state before being pressed when it is not pressed, by the magnetic force action between the metal magnetic conducting sheet and the two magnets.The magnetic shaft button provided by the utility model realizes reverse linear feedback pressing feeling and pressing recovery mechanism based on the magnetic force action between the metal magnetic conducting sheet and moving magnet, and provides a kind of "from heavy to light, down-dive" light unique feeling with simple structure.

To provide a switch mechanism that can instantly detect and process sudden natural disasters such as rockfalls, rockslides, landslides, mudslides, and debris flows in real time, and a disaster detection device equipped with this switch mechanism. [Solution] The switch mechanism has magnetic bodies 45, 66 that hold the moving magnet 24 in a position where the normally open magnetic sensor 25d, which opens and closes an electronic circuit by an external magnetic field from the moving magnet 24, is open, and a magnet guide part 22c that guides the movement of the moving magnet 24 toward the vicinity of the magnetic sensor 25d when the magnetic bodies 45, 66 are displaced. The disaster detection device has a main body 2 that houses the switch mechanism, and a detection body 3 that is supported on the ground by the main body. When a predetermined amount of kinetic energy E is applied to the detection body 3, the magnetic bodies 45, 66 are displaced to a position away from the moving magnet 24, the moving magnet 24 is guided by the magnet guide part 22c, the magnetic sensor 25d closes, and the electronic circuit is closed.

The present application relates to a kind of Halbach electromagnetic quasi-zero stiffness vibration isolation platform, including storage platform, bottom plate and be arranged between the positive stiffness component, negative stiffness component and active electromagnetic component.Positive stiffness component includes telescopic guide rod, spring and adjusting washer arranged on the bottom plate, one end of spring is connected with storage platform, the other end is connected with adjusting washer;Negative stiffness component includes fixed housing, fixed magnet array and moving magnet array;Active electromagnetic component includes metal coil.Fixed magnet array is vertically arranged by a plurality of first fixed magnet and second fixed magnet according to Halbach array, moving magnet array is vertically arranged by a plurality of moving magnets, and the sum of vertical positive stiffness of spring is equal to the maximum negative stiffness of moving magnet array.Compared with prior art, the present application effectively improves the vibration isolation performance of vibration isolation platform, and can be widely applied to the occasion with higher vibration isolation requirement.

This utility model discloses a moving magnet linear motor with good heat dissipation effect, comprising: a mounting base with an internal cavity, and an elongated through slot communicating with the cavity on the upper surface of the mounting base; a movable seat slidably connected to the upper surface of the mounting base; a motor mover and a motor stator disposed in the cavity, the motor mover including a magnetic rail mounting plate fixedly connected to the movable seat through the through slot and a magnetic rail fixed to the side of the magnetic rail mounting plate, and the motor stator including coil windings disposed opposite to the magnetic rails; and a heat dissipation plate and a thermoelectric cooling plate, the thermoelectric cooling plate being fixed on the mounting base, the heat dissipation surface of the thermoelectric cooling plate being located on the outer side of the mounting base, and the cooling surface of the thermoelectric cooling plate being located in the cavity, and the cooling surface abutting against the motor stator through the heat dissipation plate, so that the heat generated by a specific coil winding of the motor stator is quickly transferred to the thermoelectric cooling plate through the heat dissipation plate and then quickly dissipated outward, which helps to ensure that the linear motor maintains better working performance and higher motion accuracy.

This invention discloses a piezoelectric vibration sensor and a vibration monitoring system. The piezoelectric vibration sensor includes a housing and a magnetic levitation structure disposed within the housing. A first fixed magnet and a second fixed magnet are disposed on two opposite sides within the housing. The magnetic levitation structure includes: a first substrate, on which a first moving magnet is disposed, with the first moving magnet and the first fixed magnet facing each other and their opposing magnetic poles repelling each other; a second substrate, disposed vertically opposite to the first substrate, on which a second moving magnet is disposed, with the second moving magnet and the second fixed magnet facing each other and their opposing magnetic poles repelling each other; an elastic element comprising multiple layers of elastic helical beams, with both ends of the elastic element abutting against the first substrate and the second substrate, respectively; and a piezoelectric element disposed in each layer of the elastic helical beams.

The utility model belongs to the technical field of soft magnetic processing, and particularly relates to a calcining furnace for a soft magnetic oxygen material, which comprises a calcining furnace body, a cover body is arranged on the calcining furnace body, a mounting frame is arranged below the calcining furnace body, and a stirring device and a gas dispersing device are arranged in the calcining furnace body in an injection manner. The stirring device comprises a stirring paddle, a hydraulic cylinder, a driving motor, an external magnetic ring and an internal driven magnetic ring, the stirring paddle is arranged in the calcining furnace body, the hydraulic cylinder is arranged in the calcining furnace body, one end of the stirring paddle is rotatably connected with the output end of the hydraulic cylinder, and the internal driven magnetic ring sleeves the peripheral wall of the stirring paddle and is fixedly connected with the stirring paddle; the driving motor is arranged outside the calcining furnace body and corresponds to the stirring paddle, the output end of the driving motor is sleeved with the external magnetic ring, and a supporting frame connected with the ground is arranged below the driving motor; compared with the prior art, materials can be heated more uniformly.

A moving magnet voice coil actuator includes a bobbin that defines a non-straight opening for receiving a magnetic piece. The bobbin may be additively manufactured to a desired shape. The moving magnetic piece may be a curved piece that has a shape that corresponds to the shape of the opening. The magnetic piece may include a stack of magnets, which may be tapered, to allow limited tilting movement of the magnetic piece within the opening. The actuator may be part of a pair of actuators for tilting an object, for example a mirror, about a pivot point. The pair of actuators may be part of a system that includes an additional pair of actuators configured to tilt the object in a second direction that is different from the first direction.

The utility model relates to electromagnetic catapult technical field especially relates to a dynamic magnetic electromagnetic catapult device, including non -uniform stator subassembly, catapult track, magnetic mover subassembly and power supply drive component, non -uniform stator subassembly is along first direction and is arranged on catapult track, magnetic mover subassembly is along first direction and is arranged on catapult track, power supply drive component can power supply non -uniform stator subassembly to produce non -uniform magnetic field, magnetic mover subassembly can accelerate motion and deceleration motion under the action of non -uniform magnetic field, the utility model discloses through the non -uniform magnetic field of non -uniform stator subassembly generation realizes thrust self -regulation to make magnetic mover subassembly accelerate motion and deceleration motion along catapult track. Induction electromotive force frequency can change with speed and magnetic field gradient automatic change, need not external frequency converter to match the thrust demand of different speed section, has reduced the system complexity, and thrust response is faster.

The utility model discloses a railway safety cab apron which comprises a cab apron body, the cab apron body comprises a main plate and an auxiliary plate, a lamp groove is formed in the main plate, a lamp belt is arranged in the lamp groove, an installation groove is formed in the lamp groove, a transparent protection plate is arranged on the installation groove, a fixing groove is formed in the installation groove, and a fixing plate and a protection net plate are arranged on the fixing groove. A limiting device is arranged between the fixed plate and the main plate, a moving groove is formed in the auxiliary plate, a plurality of rolling shafts are rotationally arranged in the moving groove, a moving plate is hinged to the moving groove, moving magnets are arranged in the moving plate and the moving groove, an active light source is provided through the design of the lamp groove and the lamp strip, the visibility of the cab apron at night and in the dark environment such as a tunnel is remarkably improved, and the risk of missing steps is reduced; the transparent protective plate covers the lamp groove, light is transmitted, treading and foreign matter collision are physically isolated, the protective net plate is matched to enhance pressure resistance, the service life of the lamp strip is prolonged through double protection, the rolling shaft assists in luggage dragging and reduces resistance after unfolding, and the magnet ensures tight fixation and avoids shaking during folding.

The utility model relates to electromechanical control technical field, concretely relates to a dynamic magnetic type electromagnetic catapult short circuit braking system, is equipped with catapult track, and the catapult track is equipped with acceleration section and deceleration section, and includes mover, multiple stator coils and multiple power supply driving devices, multiple stator coils are arranged in sequence along the catapult track, the mover moves along the catapult track, multiple power supply driving devices are connected to corresponding stator coils at intervals, and the three-phase short circuit of each stator coil of deceleration section. The utility model discloses short circuit braking directly utilizes short circuit motor three-phase winding to realize braking, need not to install magnetic brake or other braking device extra, and the system integration degree is high, is suitable for the electromagnetic catapult system of limited space, solves the technical problem that the mechanical braking and magnetic brake braking mode in prior art exist response lag and friction loss under high speed, high energy working condition.

This invention relates to the field of cleaning pump technology and discloses a water-air dual-purpose cleaning pump, comprising a liquid pumping component, a gas pumping component, a drive motor, a progressive loading mechanism, and an energy storage triggering component. One end of the drive motor drives the impeller for liquid pumping, while the other end drives the variable displacement pump air component through the progressive loading mechanism. The energy storage triggering component is connected to the liquid outlet channel via an inlet branch. When the liquid outlet channel is closed or the liquid back pressure increases, liquid enters the energy storage triggering component and pushes the lifting drive sleeve to move, causing the driven magnetic swashplate to gradually approach the tilting magnetic drive plate, thereby gradually increasing the pumping amplitude of the variable displacement pump air component, ultimately realizing the output airflow of the gas pumping component. This invention enables the air pump load to be progressively connected to the drive motor, reducing the starting load and balancing initial and continuous purging; simultaneously, it can guide residual cleaning liquid in the impeller area inside the pump casing into the storage chamber, reducing the risk of impeller freezing and jamming, and motor stall damage.

The application relates to a photovoltaic circuit breaker device, which comprises a plurality of circuit breakers, each of which comprises a circuit breaker shell, a deflection amplification structure and an electromagnetic adsorption structure. The circuit breaker shell is provided with a first conductor structure and a second conductor structure at two ends respectively. The deflection amplification structure comprises a swing arm which is rotatably assembled on the inner wall of one side of the circuit breaker shell through a rotating support. The end of the swing arm close to the first conductor structure is provided with a moving contact. The rotating support is located between the two ends of the swing arm and close to the other end of the swing arm. The second conductor structure comprises a bimetallic strip which is configured to drive the other end of the swing arm to deflect through a transmission mechanism to control the moving contact to move away from the first conductor structure. The one end of the swing arm is provided with a moving magnet on the side away from the moving contact. The electromagnetic adsorption structure is arranged in the circuit breaker shell and located on the side of the moving magnet. Through the swing arm, a lever structure is formed, the deformation distance of the bimetallic strip is amplified, and the response action is more sensitive and rapid when the circuit is overloaded.

The utility model belongs to the technical field of electric energy meter, concretely relates to an electric energy meter convenient to dismount window body, including the cover of electric energy meter body, the cover is connected with the independent window body vertical sliding, the independent window body side part is equipped with the elastic locking assembly laterally, including the recess that opens in the independent window body side part, the locking rod that slides in the groove, the reset spring that applies the horizontal outward elasticity to the locking rod and the locking hole that is communicated with the recess on the cover, the locking rod inner end is equipped with the moving magnet, the recess groove bottom is fixed with the fixed magnet, and the adsorption force of both is greater than the reset spring elasticity, the locking rod is drawn into the locking hole when fastening, and the locking rod is retracted and two magnets are adsorbed when being detachable. The utility model can change the window without disassembling the whole cover, and can automatically keep the state after unlocking.