42results about How to "Many turns" patented technology

The invention relates to a novel manufacturing method of a planar spiral inductor. Manufacturing of the planar spiral inductor is carried out through a glass or quartz substrate; manufacturing of the planar spiral inductor is achieved by an MEMS technology which comprises a metal thin film deposition process, a dielectric layer thin film deposition technology, a thick metal layer plating process, a thick resist lithography process, an etching process and the like; the planar spiral inductor and the substrate do not need to be isolated by a thick insulating layer; and the plane shape of the planar spiral inductor and the thickness of a coil are not limited. Manufacturing of the planar spiral inductor is achieved by the MEMS technology on the glass or quartz substrate; the coupling effect and the skin effect between the coil and the substrate at a high frequency are avoided; a high Q-value inductor can be achieved; meanwhile, the thickness of a metal layer of an inductance coil is not limited; and the loss of the coil is low. The technology is simple; the requirements of multiple fields of a signal isolator, a planar antenna, a microwave baseband line, a planar spiral inductor resonator and the like can be met; and the process difficulty is reduced.

The invention discloses a whole-zone electric coupling source frequency domain magnetic sounding method and a device thereof; the magnetic sounding method comprises the following steps: (1) a transmission power source (generating set) is arranged, the transmission power source is connected with a multiple frequency current transmission machine and the multiple frequency current transmission machine is connected with two current-supply electrodes A and B; (2) a transmission-reception distance r is selected, a reception magnetic probe is arranged and is connected with a reception machine; (3) the transmission power source, the multiple frequency current transmission machine and the reception machine are started, the multiple frequency current transmission machine transmits the current of designated wave form, voltage, volume as well as frequency to the underground via the current-supply electrodes A and B, the reception machine measures the magnetic field responses of each frequency component from the underground simultaneously, the relevant parameters are automatically stored into a memory and the apparent resistivity of near zone, far zone and medium zone can be automatically calculated respectively according to relevant formulas, automatically drawn out and stored. The invention also comprises the corresponding devices. The whole-zone electric coupling source frequency domain magnetic sounding method is suitable to be used for underground electrical distribution observation in the whole zone (including the near zone, the medium zone and the far zone), used for investigating underground geological structure and mineral product distribution or solving other engineering, hydrological as well as environmental geological problems, and has high observation efficiency, high accuracy and simple equipment.

The present invention provides an unsymmetrical, crossly mixed excitation synchronous motor pertaining to the technology field of electric motor for variable-speed driving. The technology problem to be solved is: a new type mixed excitation synchronous motor which has been improved to have a higher efficiency, a bigger low-speed starting torque and a wider timing range. The motor in the present invention adopts a structure with an internal stator and an external stator. A stator back yoke (15) for magnetic guiding in the axes direction of a stator is provided out of a stator, adopting a unique tile shaped structure which is easy to process. The external stator is identical to the traditional stator of the electric motor, and the ring shaped field copper (7) is fixed on the end cover (14) of the electric motor to form an internal stator through a field yoke bracket (12). The thickness of the Claw-Pole (5) of the N pole is identical to that of the Claw-Pole (11) of the S pole, and the permanent-magnet pole (1) and the magnet core pole (2) of the N pole are adhered on the surface of the Claw-Pole of the N pole, and are separated by an air gap (9) for separating the magnet; the permanent-magnet pole (8) and the magnet core pole (10) of the S pole are adhered on the surface of the Claw-Pole of the S pole, and are separated by an air gap (9) for separating the magnet.

A new whistle which emits louder sound level with easiness of blowing air through the whistle. It direct the sound to intended subject by having sound opening area in front of the whistle to direct sound waves to go forward motion and it has capacity to change the insert able wound chamber and insert able sound chambers are attach able to each others. Also using a sound reflector and angled air tunnel on whistle with opening on top can be used to make sound waves go forward.

The invention provides a variable winding starter generator for an automobile. The variable winding starter generator for the automobile comprises a rotor core, a stator core, coils, a shaft, a shell and the like, and is characterized in that each stator electrode is provided with a centralized coil with (m) turns and a centralized coil with (n) turns; when the variable winding starter generator for the automobile serves as a starter, all the coils on the stator electrodes with the same phase are serially connected to one another by selector switches to form a phase armature winding; after each phase armature winding is connected with an asymmetrical half-bridge converter with diodes, the phase armature winding can electrically run in a switch reluctance machine mode; and when the variable winding starter generator for the automobile serves as a generator, the coils with the (n) turns on all the stator electrodes are serially connected to one another to form an exciting winding, the coils with the (m) turns on the stator electrodes with the same phase are serially connected to one another or connected to one another in parallel to form a phase armature winding, and the starter generator generates power and runs in an electro-magnetic doubly salient generator mode. By the variable winding starter generator, the advantage of high efficiency of a switch reluctance machine and the advantage of easiness in voltage adjustment and control of an electro-magnetic doubly salient generator can be effectively utilized.

The invention relates to a full-automatic thermosetting wire winding machine which comprises a machine frame, a wire distributing mechanism, a wire winding mechanism, a hot air mechanism and an automatic control mechanism. The wire distributing mechanism, the wire winding mechanism, the hot air mechanism and the automatic control mechanism are arranged on the machine frame. The wire distributing mechanism comprises a wire distributing motor, a screw rod and a wire distributing seat. The wire distributing motor drives the wire distributing seat to move in a reciprocating mode in the wire distributing direction through the screw rod. The wire winding mechanism comprises a wire winding motor, a main shaft and a wire winding mold. The wire winding mold is arranged on the main shaft, the wire winding motor drives the main shaft and the wire winding mold on the main shaft to rotate. The hot air mechanism is a drying gun arranged below the wire winding mold, and the drying gun is used for heating the wire winding mold and varnished wires. The automatic control mechanism comprises a PLC and a human-machine operation interface connected with the PLC. The PLC controls the wire distributing motor, the wire winding motor and the drying gun to operate. Compared with the prior art, the full-automatic thermosetting wire winding machine has the advantages of being simple in structure, accurate in control, orderly in wire winding, high in production efficiency, capable of saving materials and labor, and the like.

A steering assist system for a watercraft including a force detection assembly adapted to detect a force further applied to an operator steering control of the watercraft after the steering control is turned to a maximum turning position. The steering assist system also includes a controller configured to increase a steering force produced by the watercraft in response to an output of the force detection assembly. In one arrangement, the steering assist system increases an output of a propulsion system of the watercraft in proportion to an output of the force detection assembly. In another arrangement, the steering assist system moves a steering force producing member, such as a deflector or rudder, for example, in response to an output of the force detection assembly in addition to, or alternative to, increasing an output of the propulsion system.

The present invention relates to a film bearing exclusive use giant magnetostrictive driver which comprises a magnetic base plate, a magnetic outer housing, a giant magnetostrictive rod, a coil framework, a exciter coil, a bias coil, a magnetic cover gasket, a upper cover, fastening screws and supporting block. The invention comprises the following steps: measure bearing film gapping place by using current vortex displacement sensor, adjust driver output displacement by adjusting power supply current of driver to realize static state and dynamic adjustment of film gapping place and reach target of enhancing rotate precision and stability of film bearing.

The invention relates to silicon single crystal material processing equipment, aiming at providing a hook-type electromagnetic field device of a full-diameter single crystal furnace. The hook-type electromagnetic field device comprises direct current coils for generating hook-type electromagnetic fields and at least two annular sealed containers filled with cooling oil, wherein the annular sealed containers are vertically overlaid to form a hollow cylinder shape; each sealed container is formed by mutually connecting a semi-enclosed shield located on the outer side, an inner cylinder located on the inner side and two yoke plates through welding, and the sealed containers as well as an oil pump and an oil cooler jointly form a forcible oil cooling system through pipelines; and the sealed containers are respectively and internally provided with one group of direct current coils formed by winding solid copper pipes. In the invention, because the two upper and lower coils are arranged in parallel, generated magnetic force lines are in axial symmetry distribution, meanwhile, the magnetic field intensity is continuously adjustable, and the axial and radial uniformity of a crystal bar is guaranteed so that the effect of controlling the content of oxygen in a single crystal is good. As bolts are used for connecting a bisectional structure, the transportation, dismounting, installation and debugging of the device provided by the invention are simpler and more convenient.

The present invention discloses a charging coil and a manufacturing method thereof. The charging coil comprises a substrate having at least one set of conducting and connecting holes; at least one coil structure formed on the substrate, wherein the two end points of each coil structure are connected with one set of conducting and connecting holes; a supporting layer formed at the gaps and the peripheries of the coil structures to support the coil structures. According to the present invention, a lithography technology is applied to manufacture, thereby obtaining the charging coil which realizes a single place and has the largest number of turns and the thinnest thickness, and realizing the technical effects of simple process and high yield.

The invention relates to a composite magnetic coupling resonance type wireless power transmission coil. The cross section of a transmission line adopted for winding a transmission coil is a layered structure which is formed by compounding a solid copper conductor, a first insulating layer, a copper conducting layer, a high-conductivity material conducting layer and a second insulating layer; the solid copper conductor forms an excitation coil or a load coil of the composite magnetic coupling resonance type wireless power transmission coil, and the copper conducting layer and the high-conductivity material conducting layer commonly form a transmitting coil or a receiving coil of the composite magnetic coupling resonance type wireless power transmission coil, so that the excitation coil andthe transmitting coil or the load coil and the receiving coil are compounded into a whole. The internal resistance, caused due to the skin effect, of the transmitting coil and the receiving coil in ahigh-frequency condition can be reduced in a four-coil magnetic coupling resonance type wireless power transmission system, the quality factor of the coils can be improved and high-efficiency transmission of power is achieved so as to provided convenience for miniature and miniaturized devices using the four-coil magnetic coupling resonant wireless power transmission technology.

The invention discloses a compensated high-current generation device, which belongs to a test resource device of circuit breakers and protectors. The compensated high-current generation device comprises an automatic coupling voltage regulator and a compensated automatic coupling voltage regulator which are connected to a phase line L and a zero line N, the compensated automatic coupling voltage regulator is connected with a primary coil of a compensation transformer, the automatic coupling voltage regulator is connected with a secondary coil of the compensation transformer, the compensation transformer is connected with a multi-tap autotransformer, the multi-tap autotransformer is connected with a contactor, the contactor is connected with a current rising transformer, and the current rising transformer is connected with a tested object. The compensated high-current generation device has the advantages that the compensated high-current generation device improves adjustment resolution, ensures the high precision of the current output by a secondary coil of the current rising transformer, and has wide range of output current.

The invention discloses a low-frequency electromagnetic vibration table system based on induction coil feedback control, which comprises a signal generator, a speed feedback control device, a power amplifier and a low-frequency electromagnetic vibration table. A driving coil and an induction coil are arranged on the moving ring of the low-frequency vibration table. The speed feedback control device comprises a feedback part and a control part. the induced voltage input feedback part of the induction coil, the reference signal output by the signal generator and the feedback signal output by thefeedback part are respectively input to the control part, and the control section forms a control signal input drive coil with a reference signal and a feedback signal. According to the invention, aninduction coil is arranged on the vibrating table moving ring, the vibration table speed extraction is realized by detecting the induction voltage of the induction coil, the equivalent resistance ofthe driving coil is not directly detected, and the speed detection network constructed by the method does not need series resistance on the driving coil and establishes a corresponding analog circuit,so that the structure of the speed extraction device is simplified.

The invention provides an electromagnetic handwriting board, an electromagnetic handwriting device and electronic equipment, which belong to the field of electromagnetic handwriting. The electromagnetic handwriting device comprises the electromagnetic handwriting board and an electromagnetic pen, wherein the electromagnetic handwriting board comprises an antenna board and a signal processing module; the antenna board comprises a plurality of transmitting coils for transmitting excitation signals to the outside and a plurality of receiving coils for receiving induction signals which are generated by the electromagnetic pen under the excitation of the excitation signals and transmitting the induction signals to the signal processing module for processing; and the turns of at least one transmitting coil positioned at the periphery of the antenna board is more than the turns of the transmitting coils positioned in the central part of the antenna board. In the invention, the turns of the transmitting coils at the periphery are improved, and the induction energy at the periphery is improved, so that the induction distance at the periphery is increased, and the noise interference at the periphery is reduced; and the electromagnetic handwriting board, the electromagnetic handwriting device and the electronic equipment can be widely applied in the field of electromagnetic handwriting.

The invention aims to provide a stator assembly, which can improve the output power of an outer rotor motor, has a good insulation effect and is convenient to process and assemble, of the outer rotormotor. The stator assembly of the outer rotor motor comprises a stator iron core and stator frameworks arranged at two axial ends of the stator iron core, the stator iron core comprises an iron core ring part and iron core tooth parts located in the circumferential outer side of the iron core ring part. Each stator framework is composed of a framework ring part and a framework gear sleeve part which is arranged outside the iron core gear part in a sleeving mode and located outside the framework ring part in the circumferential direction. The framework tooth sleeve parts are in one-to-one correspondence with the iron core tooth parts and are provided with accommodating grooves matched with the iron core tooth parts; winding grooves for giving way to windings are formed between the adjacentframework tooth sleeve parts, the axial end parts of the framework tooth sleeve parts extend outwards in the circumferential direction to form positioning plates located in the axial sides of the outer ends of the iron core tooth parts, and limiting blocks are arranged in the sides, away from the stator iron core, of the positioning plates.

A transformer including first coil unit and second unit, wherein one or more coils are wound on the bobbin of insulating material in at least one of the first coil unit and the second unit, and wherein the bobbin is formed with at least one partitioning flange for partitioning a coil winding surface of the bobbin into two winding surfaces along the longitudinal direction of the bobbin, is disclosed.

The invention belongs to the field of nuclear reactors, and particularly relates to a modular electromagnetic pump for transporting liquid metal in the nuclear reactor. The pump comprises a pump gutter assembly and an electromagnetic module, wherein the electromagnetic module is used for providing electromagnetic force; the pump gutter assembly penetrates the center of the electromagnetic module;flanges are arranged at both ends of the electromagnetic module; fixed blocks are arranged at connecting parts of the flanges and the electromagnetic module; and thus, the modular electromagnetic pumpis provided.

The invention provides a stator, a motor with the stator, a fluid pump with the motor and a vehicle comprising the fluid pump. The stator comprises a stator iron core, an upper insulating frame, a lower insulating frame and a plurality of wiring terminals; the upper insulating frame comprises an upper inserting part and an upper extending part, and the lower insulating frame comprises a lower inserting part and a lower extending part. A plurality of terminal clamping grooves are formed in the peripheral wall of the upper extending part, a plurality of notches extending downwards by different depths are formed in the upper end face of the upper extending part, a plurality of protrusions are arranged on the peripheral wall of the upper extending part and arranged into multiple layers spaced in the axial direction of the upper insulating frame, and wiring spaces are formed between the adjacent layers. The protrusions on the same layer are distributed at intervals in the circumferential direction of the upper insulating frame, connecting lines of the multiple windings are led out of the notches and distributed in the wiring space in the circumferential direction of the upper insulating frame, and the wiring terminals are inserted into the multiple terminal clamping grooves respectively. According to the stator provided by the invention, the wiring terminals are convenient to install, the windings are prevented from overlapping and crossing, and the motor performance is improved.

The invention provides a high-power-density motor, which comprises a stator assembly and an outer rotor, wherein the stator assembly comprises a stator iron core, an insulation framework, a stator winding, a stator bushing, an end collector ring and an end insulating plate. The stator bushing is provided with an axial inner hole for installing and connecting a motor rotating shaft, the stator ironcore and the end insulating plate are respectively provided with an inner hole and respectively sleeve outside the upper and lower sections of the stator bushing. The end collector ring is arranged on the surface of the end insulating plate and has an axial clearance from the stator iron core. A binding post is arranged on one surface, away from the stator iron core, of the end collector ring. Aheat conductor formed by pouring high heat conduction materials is arranged outside a stator slot enameled wire and a slot insulation component, the axial clearance space between the end insulating plate and the stator iron core and the outer surface of the assembled stator iron core, an insulating framework, the stator winding, the end collector ring and the enameled wire, and the binding post extends out of the surface of the heat conductor. According to the invention, the heat dissipation capacity of the motor and the output torque capacity of the motor at a certain rotating speed are improved.

The invention relates to steering control systems of loading machines and provides a double-speed steering control system of a loading machine in order to solve the problem of invariable steering circle number of a traditional loader steering system. The double-speed steering control system of the loading machine comprises a flow amplifying valve, a steering oil cylinder, a steering machine and asteering pump; the steering machine is a double-displacement steering machine comprising two metering motors; and a hydraulic control end of a hydraulic control reversing valve of the steering machinecommunicates with an oil tank loop or a pump port of the steering pump through a two-position three-way valve. In the double-speed steering control system of the loading machine, the two-position three-way valve can be controlled, so that the first and second metering motors of the steering machine can work at the same time, and the steering machine outputs a higher flow; and in the steering process, the loading machine has a small steering circle number to realize quick steering, so that the efficiency is improved, and the labor intensity is reduced. Or through the two-position three-way valve, the hydraulic control end of the hydraulic control reversing valve of the steering machine communicates with the oil tank loop; and at this time, only one of the first and second metering motors of the steering machine participates in steering, so that the steering machine has a big steering circle number.

The invention provides an electromagnetic handwriting board, an electromagnetic handwriting device and electronic equipment, which belong to the field of electromagnetic handwriting. The electromagnetic handwriting device comprises the electromagnetic handwriting board and an electromagnetic pen, wherein the electromagnetic handwriting board comprises an antenna board and a signal processing module; the antenna board comprises a plurality of transmitting coils for transmitting excitation signals to the outside and a plurality of receiving coils for receiving induction signals which are generated by the electromagnetic pen under the excitation of the excitation signals and transmitting the induction signals to the signal processing module for processing; and the turns of at least one transmitting coil positioned at the periphery of the antenna board is more than the turns of the transmitting coils positioned in the central part of the antenna board. In the invention, the turns of the transmitting coils at the periphery are improved, and the induction energy at the periphery is improved, so that the induction distance at the periphery is increased, and the noise interference at the periphery is reduced; and the electromagnetic handwriting board, the electromagnetic handwriting device and the electronic equipment can be widely applied in the field of electromagnetic handwriting.

The invention relates to a numerical control machine tool clamp, in particular to a numerical control machine tool clamp capable of separating and collecting waste and water. The numerical control machine tool clamp comprises a first fixing frame, clamping mechanisms, a rotating mechanism and the like; the clamping mechanisms are symmetrically and rotationally connected to the first fixing frame, and the rotating mechanism is fixedly installed on the first fixing frame. Waste and water slide to a fourth fixing frame, a filter screen filters the water, the water flows into the first fixing frame, a sliding frame pushes the waste into a fixing frame, the purpose of separately collecting the water and the waste is achieved, and the utilization rate of waste water is increased.

The invention discloses a swing type motor matched with an electric toothbrush for use and capable of feeding back output swing amplitude, which comprises a shell, an output shaft is rotatably arranged in the shell, a rotor iron core is arranged on the output shaft, a permanent magnet is arranged in the rotor iron core, stator iron cores are respectively arranged on two sides of the rotor iron core of the shell, and a permanent magnet is arranged in the stator iron core. The stator core is wound with a coil, the generator further comprises a power generation winding and a magnetic part, the power generation winding is connected with an external operation module, the operation module is arranged outside the shell and connected with the shell, the magnetic part is arranged close to the power generation winding, and the power generation winding and the magnetic part are arranged in a relative movement mode. The structure is simple, the rotation amplitude of the output shaft can be effectively fed back, and the using effect of the overall structure is effectively improved.

The invention discloses a cable drum with a wire outlet capable of rotating by 360 degrees, and belongs to the technical field of engineering machinery. The defect that a cable drum in the prior art cannot automatically change the wire outlet direction is overcome. The cable drum mainly comprises a mounting frame, a drum body is mounted on the mounting frame and comprises a drum main body, an upper baffle and a lower baffle are mounted on the upper side and the lower side of the drum main body correspondingly, a wire outlet assembly is arranged on the upper side of the upper baffle and comprises a connecting plate, one end of the connecting plate is movably connected with the drum main body and fixedly connected with one or more mounting plates, the connecting plate rotates relative to thedrum main body, the other end of the connecting plate is connected with the wire outlet, a friction assembly is arranged on the lower side of the lower baffle and comprises a friction disc and friction columns, the friction disc is fixed to the mounting frame through a friction disc support, vertical guiding rods are mounted between the mounting plates and the friction disc, the friction columnsare mounted on the guiding rods, elastic pieces are mounted between the friction columns and the mounting plates, and cushion blocks are mounted between the elastic pieces and the friction columns.

The invention provides a small excitation device (2) which can be simply manufactured and can fully ensure coil space. The excitation device (2) is provided with a cylindrical outer pole member (7) and an inner pole member (6) embedded into the hollow part of the outer pole member (7). The inner pole member (6) has an annular recessed portion (14) open towards the outside of the radial direction,and an insulating coating film (15) is formed on the wall surface of the annular recessed portion (14). In addition, a plurality of excitation coils (8) are directly wound around the annular recessedportion (14).

The invention discloses a combined type anti-interference magnetic core which comprises two single magnetic core bodies. Each single magnetic core body comprises a magnetic core body and a magnetic cylinder integrally formed on the magnetic core body. Each magnetic core body comprises an integrally-formed base and three side walls forming a semi-enclosure structure with the base. The magnetic cylinders are arranged on the bases, and winding gaps are reserved between the magnetic cylinders and the three side walls. Each magnetic cylinder is equal to the corresponding three side walls in height. The magnetic cylinders are correspondingly provided with connecting columns and connecting structures connecting the two single magnetic core bodies. The connecting columns after being dismantled can be contained in the connecting structures. The combined type anti-interference magnetic core has the advantages of being capable of being used individually or in a combined mode, wider in application range and ingenious in design; more coils can be wounded around the magnetic cylinders, and therefore the product performance is more excellent; moreover, due to the unique structure, the magnetic core has the good anti-interference performance, and high-frequency interference is effectively restrained; the research shows that the anti-interference performance of the magnetic core can be further improved due to grooves formed in the magnetic cylinders in the length direction.