36results about How to "Increase the number of winding turns" patented technology

The invention relates to an electromagnetic force actuator for active support of an astronomical telescope mirror face. One end of the force actuator is connected with a supported mirror face through a force sensor, and the other end of the force actuator is fixed in a mirror cell. The electromagnetic force actuator is characterized in that a force output end of the force actuator is arranged on an axle at the center of the force actuator; two permanent magnets with strong magnetism are arranged on the center axle of the force actuator; a coil with an iron core is fixed on a shell of the force actuator; and the output of the force actuator is connected with a control system, and the control system is connected with the coil with the iron core. The electromagnetic force actuator for the active support of the astronomical telescope mirror face has the advantages that structure is simple, mass is low, energy consumption is low, control accuracy of input force is high, response speed is high, stroke of the force actuator is large, force adjusting range is wide, environment requirements are low, and the force actuator can be used in South Pole and even in space special environment. Connection of the force actuator and the mirror face is facilitated.

The invention provides a movement conversion device based on vehicle vibration and belongs to the technical field of mechanical movement conversion. The movement conversion device based on vehicle vibration can be effectively used for converting vertical movement into circular movement. A motor is located in a lower sleeve, and a motor shaft of the motor faces upwards and is exposed out of an opening of the lower sleeve. A thrust bearing is arranged in the middle of the motor shaft, and the upper side and the lower side of the thrust bearing are each provided with a one-way bearing. The upper one-way bearing and the lower one-way bearing are matched with a set of large bevel gears provided with opposite tooth surfaces separately. One end of a steel wire rope is located on the inner side of the top of an upper sleeve, and the other end of the steel wire rope is fixed to the axial back surface of the first large bevel gear located on the upper side. Vertical supports are arranged on two sides of an opening of the lower sleeve, spring limiting seats are arranged at the top ends of the supports, transverse shafts are arranged on the inner sides of the middles of the supports, two small bevel gears are matched with bearings arranged on the transverse shafts, one end of a volute spiral spring is fixed at the bottom of the second large bevel gear located on the lower side, and the other end of the volute spiral spring is fixed on the lower sleeve. The movement conversion device based on vehicle vibration is mainly used for devices for converting mechanical energy of vehicle vibration damping parts into electric energy.

The invention discloses an auxiliary pole coil of a DC motor and a winding method thereof. The auxiliary pole coil includes an elliptical ring body formed by winding one or more parallel motor windingwires, a first lead-out wire arranged at the head end of the motor winding wires, and a second lead-out wire arranged at the rail end of the motor winding wires. The elliptical ring body consists ofa forward winding coil group and a reverse winding coil group wound integrally. The forward winding coil group and the reverse winding coil group are wound to form a first linear part and a second linear part distributed oppositely and a first arc part and a second arc part connected with the first linear part and the second linear part at the same time and distributed oppositely. The first lead-out wire is located at the outer end of the forward winding coil group away from the elliptical inner hole of the elliptical ring body. The second lead-out wire is located at the outer end of the reverse winding coil group away from the elliptical inner hole of the elliptical ring body.

The invention belongs to the technical field of cable production, and particularly relates to a rope rolling device with a degreasing function for cable production. In order to solve the problem thatan existing device is poor in utilization ratio, cannot clean greasy dirt on the surfaces of cables and cannot contract the cables better, the invention provides the scheme as follows: the rope rolling device comprises a base. Four supporting legs are welded to the outer wall of one side of the bottom of the base, a rolling device shell is connected to the outer wall of one side of the top of thebase through a bolt, a sliding groove is formed in the outer wall of one side of the top of the rolling device shell, a first electric slide block is slidably connected to the inner wall of the sliding groove, and a slide bar is welded to the outer wall of the bottom of the first electric slide block. The rolling device provided by the invention can carry more cables, guide the cable rolling direction and rolling order, prevent the cables from being entangled as the rolling order is disordered, guarantee that the surfaces of the cables are dry and prevent slip of the surfaces of the cables during use, and the diameter of a rolling rod is adjusted, so that the cables of various models are rolled conveniently.

The invention provides a screw of a screw vacuum pump, and belongs to the technical field of vacuum pumps. The problem that the screw of the existing screw vacuum pump cannot meet the specific process conditions at present is solved. The number of turns of the upper spiral groove of a suction part, in the screw of the screw vacuum pump, is 0.75-1.25; when the number of turns of the upper spiral groove of a compression transition part is 1, the number of turns of the upper spiral groove of an exhaust part is more than 3; when the number of turns of the upper spiral groove of the compression transition part is more than 1, the number of turns of the upper spiral groove of the exhaust part is 1.75-4. The screw of the screw vacuum pump has the advantages that the vacuum pump is high in ultimate vacuum, is stable in performance while the manufacturing cost is almost not increased, and then more types of screw vacuum pumps are available with a more widespread application domain. In the screw vacuum pump adopting the pitch variable screw provided by the invention, the compression ability is optimized by appropriately increasing the number of turns of the spiral groove as wound, the exhaust efficiency of the exhaust part is improved, the excessive compression phenomenon because the air in the exhaust part cannot be exhausted is alleviated, and then the unit energy consumption is reduced effectively.

The invention relates to a bicycle wireless charging device which comprises a center shaft communicating pipe, a crank and a charging mechanism, and the charging mechanism comprises a non-metal cylinder which is fixedly connected to a bicycle center shaft and inserted into the center shaft communicating pipe. The charging device comprises a non-metal cylinder, a center shaft communicating pipe, a transmitting end coil wound on the non-metal cylinder, a receiving end coil wound on the side wall of the center shaft communicating pipe and coupled with the transmitting end coil, a charging module fixed on the non-metal cylinder and connected with the transmitting end coil, and a rectification module fixed in the center shaft communicating pipe and connected with the receiving end coil. According to the bicycle wireless charging device, the receiving end coil is arranged in the hollow middle shaft communicating pipe, the structural design that the cylindrical sending end equipment is inserted in a matched mode is adopted, more space is provided, the number of winding turns of the induction coil and the coil coupling degree are improved, the charging efficiency is improved, meanwhile, the whole charging mechanism is arranged in the middle shaft and the middle shaft communicating pipe, and the charging efficiency is improved. And the extension circuit is sealed by glue, so that comprehensive protection of the charging mechanism is realized.

The invention provides a screw of a screw vacuum pump, and belongs to the technical field of vacuum pumps. The problem that an existing screw of the screw vacuum pump can not meet specific technological conditions is solved. The number of circles of a spiral groove in an air intake part in the screw of the screw vacuum pump is 0.75-1.25. When the number of circles of a spiral groove in a compression transition part is 1, the number of circles of a spiral groove in an exhausting part is larger than 3. When the number of circles of the spiral groove in the compression transition part is larger than 1, the number of circles of the spiral groove in the exhausting part is 1.75-4. By means of the screw of the screw vacuum pump, the final vacuum degree of the vacuum pump is higher, the performance is more stable, the manufacturing cost is hardly increased, the screw vacuum pumps have more models, and the application range is wider. According to the screw vacuum pump adopting the variable-pitch screw, by properly increasing the number of winding circles of the spiral grooves, the compression capacity is optimized, the exhausting efficiency of the exhausting part is improved, the phenomenon that air of the exhausting part can not be exhausted and compression is excessive is relieved, and the unit energy consumption is further effectively lowered.

The invention discloses a hot nozzle main body including a hot nozzle body, a groove and heating wires. The groove is helically arranged on the outer periphery of the hot nozzle body, and the groove is internally wound with the heating wire; the hot nozzle body comprises a small-diameter portion and a large-diameter portion; the rear end of the small-diameter portion is arranged on the front end of the large-diameter portion; the length of the small-diameter portion is at least 4 / 5 that of the hot nozzle; a portion close to the rear end of the small-diameter portion is additionally provided with an encryption groove, the density of the encryption groove is at least 2.5 circle / cm, and the encryption groove is internally wound with the heating wire. The design can reduce a difference between two-end temperatures and a middle part temperature of the hot nozzle body, improves the problem that non-smooth glue output is generated due to the non-uniform hot nozzle internal temperatures; and at the same time, the axial distance of the small-diameter portion at the front end of the hot nozzle body is lengthened, so that the temperature-rising rate of the hot nozzle can be accelerated, and the work efficiency is improved.

The invention discloses an electromagnetic repulsion coil based on a micro-arc oxidation mode. The coil comprises a valve metal disc, a guide hole is formed in the center of the valve metal disc, a gap is formed in the valve metal disc, ceramic oxide layers are arranged in the gap and on the surface of the valve metal disc, the gap is filled with silica gel, and the coil is excellent in electricalinsulation performance and mechanical strength.

An asynchronous motor structure comprises a rotating shaft, a plurality of motor units are arranged on the rotating shaft, each motor unit comprises a rotor fixedly arranged on the rotating shaft, an inner ring is arranged on the outer side of the rotor in a sleeving mode, and a gap exists between the inner ring and the rotor; and the inner ring is provided with a slot for inserting the silicon steel sheet, the outer side of the silicon steel sheet is provided with an outer magnetic ring, the outer end of the silicon steel sheet is in contact with but not connected with the inner side wall of the outer magnetic ring, and a coil is wound outside the silicon steel sheet. According to the asynchronous motor structure provided by the invention, the structure is simplified, the power is improved, and the maintenance is convenient.

The invention discloses a bias magnetic core. A winding post is an upright post of which the bottom surface is a rounded rectangle; side plates have L-shaped structures; the winding post is positioned on the middle part of a bottom plate, and is consistent with the bottom plate in the length and width directions; the two side plates are positioned on both sides of the bottom plate in the width direction; the distances between the two ends of the winding post in the width direction and long plates of the two side plates are smaller than the length of the winding post; the distance L2 between one side of the winding post in the length direction and the side A of the bottom plate in the length direction is equal to D1; the distance D3 between the other side of the winding post in the length direction and a side B, which is opposite to the side A, of the bottom plate in the length direction is smaller than D2; the inner side faces of the L-shaped structures of the side plates are in smooth transition. According to the bias magnetic core disclosed by the invention, the magnetic core is reasonable in structural layout and large in the effective working area, so that the problem of divergence of coil magnetic induction lines on the root of the winding post is solved, and the stability and reliability of the electromagnetic property of the magnetic core are improved. The invention further provides a circuit board in which the bias magnetic core is applied.

The utility model relates to a motor and a stator coil assembly and a cooling fan thereof. The stator coil assembly is combined with a seat, and the seat is combined with a rotating component, thereby forming the motor. The motor structure further comprises the cooling fan. The stator coil assembly comprises a plurality of wiring layers, each wiring layer is provided with a wiring contour, the outer sides and the inner sides of the wiring contours are respectively provided with a positioning area and a wiring area, the wiring areas of the wiring layers respectively form a coil, and the positioning areas of the wiring layers respectively form at least one conduction part for electrical conduction with the coils of different wiring layers. Therefore, no space needs to be reserved between two adjacent coils of the stator coil assembly to accommodate the conduction parts, and the number of winding turns or wire diameter of the coils can be increased.

The invention discloses an electronic device, a filtering module and a method for reducing common mode noise, wherein the filtering module comprises a circuit board, a connector, a filtering ring and a plurality of coils, the connector and the filtering ring are both arranged on the circuit board; and the plurality of coils are wound on the filtering ring and electrically connected with the connector.

The invention discloses a hydrostatic testing machine for a connecting piece and a pipe of a pipeline heat tracing band, and relates to the technical field of pipe testing. The connecting piece of the pipeline heat tracing band is used for facilitating technical reconstruction of a pipe hydrostatic testing machine and comprises an inner ring and an outer ring, the outer ring is arranged on the outer circle of the inner ring in a sleeving mode, the inner ring is formed by splicing a first inner ring unit and a second inner ring unit, the first inner ring unit and the second inner ring unit are each in a semi-circular shape, and the first inner ring unit and the second inner ring unit are each in a semi-circular shape. The first inner ring unit and the second inner ring unit are detachably connected, the outer ring is formed by splicing a first outer ring unit and a second outer ring unit, the first outer ring unit and the second outer ring unit are detachably connected, and the inner side of the first outer ring unit and / or the inner side of the second outer ring are / is provided with a pay-off opening. And the inner ring and the outer ring can rotate relatively. The pipe hydrostatic testing machine comprises the pipeline heat tracing band connecting piece.

The invention discloses an electromechanical redundancy electronic speed regulator, and the speed regulator is composed of an actuator (1), a sensor and a control unit, wherein the actuator (1) comprises a driving shaft (11), a front end cover (14), a rear end cover (112), a sleeve (17) and an electromagnetic driving assembly arranged in the sleeve (17). An elastic clamping ring accessory (13) isarranged at the top end of the driving shaft (11). The electromagnetic driving assembly is composed of a coil winding (19), an armature (110), a wiring terminal (111), a coil winding outgoing line (13), a rolling bearing (15), a limiting spring seat (16) and a spring (18). According to the electromechanical redundant electronic speed regulator, the actuator (1) can directly exchange with a mechanical speed regulator conveniently and quickly, also can carry out the composite control on devices together with the mechanical speed regulator. Moreover, the size is small, and the regulation precision is high.

The invention discloses an anti-collision protection structure with buffering performance for a logging instrument. The anti-collision protection structure comprises a protective shell and a logging instrument measuring main body, wherein micro hydraulic oil cylinders are mounted on the left side and the right side below the protective shell; a spacer is mounted on one side, far away from the vertical center line of the protective shell, of each micro hydraulic oil cylinder; a connecting pin penetrates through the upper edge of each spacer; an inner sleeve frame is arranged in the protective shell; connecting springs are mounted on the left side and the right side of the inner sleeve frame; the logging instrument measuring main body is positioned in the inner sleeve frame; a connecting sleeve is mounted above the protective shell; a guide rack is arranged in the connecting sleeve; an adjusting gear is mounted on one side of the guide rack; and a connecting block is mounted on the outer wall above the connecting sleeve. The anti-collision protection structure for the logging instrument is provided with the connecting springs, and external force borne by the protective shell can be effectively buffered through the connecting springs, so that a certain buffering distance is formed, and reliable buffering protection can be effectively provided for the logging instrument.

The invention discloses a magneto-rheological torsional vibration absorber of an engine. The magneto-rheological torsional vibration absorber of the engine comprises a magneto-rheological torsional vibration absorber body structure and a self-adapting pressure regulating module, wherein the self-adapting pressure regulating module comprises a first annular housing, a control transformer, a voltage comparator, a first collecting ring, a second collecting ring, an AC-DC converter and a self-adapting electric brush assembly; the voltage comparator comprises a first input end, a second input end, a third input end, a fourth input end and an output end; the first collecting ring and the second collecting ring are correspondingly arranged on the outer sidewall of the first annular housing; a first annular concave chamber which is provided with an opening in the left end is arranged on the first annular housing; a first covering plate is arranged at the opening of the first annular concave chamber and can cover the opening. The magneto-rheological torsional vibration absorber of the engine has the advantages that the damping force can be self-adaptively adjusted; the cost is relatively low; frequent high-load rigid impact on an inertia circular ring is avoided; the power is stably supplied; and moreover, the energy loss is small.

The invention discloses an electromagnetic gun for teaching. The electromagnetic gun comprises a bottom plate; a gun body base, a DC-DC high-voltage boosting module, a first relay module, a second relay module, a voltage stabilizing module, a super capacitor, a key input module, a model airplane battery and a single-chip microcomputer are fixedly arranged on the bottom plate. A display screen is arranged on the single-chip microcomputer, a rectangular supporting plate is arranged on the gun body base, an upper steering engine and a lower steering engine are arranged on the rectangular supporting plate, a door-shaped support is arranged on the upper steering engine, a gun barrel fixing plate is arranged on the door-shaped support, a gun barrel is arranged on the gun barrel fixing plate, anda programmable camera is arranged at the upper end of the gun barrel fixing plate. The electromagnetic gun for teaching is small in size and complete in function, and the shooting angle, direction and range of the electromagnetic gun can be adjusted.

An axial multi-magnetic-pole permanent magnet rotor brushless motor is characterized in that magnetic shoes (9) arranged in sequence are fixed on the arc surface of a rotor (3). The magnetic pole of each magnetic shoe is a radial magnetic pole, the polarities of adjacent magnetic shoes are different, c stator iron cores (1) are uniformly distributed around the rotor (3), and each stator iron core(1) is composed of b pole shoe iron cores (10). Electromagnetic coils (2) with opposite winding directions are wound between two adjacent pole shoe iron cores on each stator iron core (1). The two ends of the main shaft (4) are supported by a first shell end cover (7) and a second shell end cover (8) and can rotate. The number of magnetic poles is increased in the axial direction of the rotor, anda plurality of permanent magnet poles in the axial direction of the rotor (3) do work at the same time. The winding space of the stator iron core (1) is increased, the magnetic density of the pole shoe iron core (10) is enhanced, and the energy-saving effect is more obvious. Current changes direction through the controller according to Hall detection signals, brushless operation is achieved, thestructure is simple, the size is small, and the weight is light.

The invention relates to the technical field of audio transformers, and discloses an audio transformer which comprises a U-shaped plate, wherein sliding grooves are formed in the left side and the right side of the interior of the U-shaped plate, limiting strips which are evenly distributed are slidably connected to the inner sides of the two sliding grooves, iron cores which are evenly distributed are arranged on the inner side of the U-shaped plate, the two ends of the iron core are fixedly connected with the limiting strips, and a copper wire is connected to the iron core in a wound mode. According to the invention, a primary coil is divided into a plurality of sections of average structures, secondary coils composed of copper wires, iron cores and limiting strips are divided into a plurality of groups and embedded into the primary coil, and the high-frequency surface transmission capability is improved through a high-frequency skin effect of an electronic circuit, that is, the higher the frequency is, the more concentrated the current is on the surface , so that the coupling capability of an output coil is improved, a multi-group parallel connection mode is adopted after output, the number of turns of windings at the input end of the transformer is increased, the inductance value of the input end is increased, and the low-frequency output extension range is improved.

The utility model relates to a motor and a stator coil assembly and a cooling fan thereof. The stator coil assembly is combined with a seat, and the seat is combined with a rotating component, thereby forming the motor. The motor structure further comprises the cooling fan. The stator coil assembly comprises a plurality of wiring layers, each wiring layer is provided with a wiring contour, the outer sides and the inner sides of the wiring contours are respectively provided with a positioning area and a wiring area, the wiring areas of the wiring layers respectively form a coil, and the positioning areas of the wiring layers respectively form at least one conduction part for electrical conduction with the coils of different wiring layers. Therefore, no space needs to be reserved between two adjacent coils of the stator coil assembly to accommodate the conduction parts, and the number of winding turns or wire diameter of the coils can be increased.

The invention relates to a stackable magnetic conductive structure which comprises a first insulating frame set, a first magnetic conductive element and a second magnetic conductive element, wherein the first insulating frame set comprises a first insulating frame and a second insulating frame. The first insulating frame and the second insulating frame are stacked with each other, so that two sets of magnetic conductive structures and even more sets of magnetic conductive structures can be combined so as to improve the size of the magnetic circuit cross section of a single magnetic conductive structure. A coil with a smaller wire radius is wound on the stackable magnetic conductive structure, so that the motor efficiency can be effectively increased.

The structure comprises stator, rotor and winding on the stator. Several laminated plates are piled to form the stator. The rotatable rotor is inserted into the stator. The structure of the stator comprises outer stator and inner stator. A combination hole in quadrilateral section shape is formed on central part of the outer stator. The inner stator can be inserted into the combination hole in the outer stator, and the rotor can be inserted into an insertion hole in central part of the inner stator. There is gap between the outer stator and the inner stator made from T-shaped steel in order to enwind the said winding. The said structure of stator makes winding be enwound evenly and makes enwound quantity be increased so as to obtain effect of raising electrical efficiency.

The invention provides a stator structure and a brake. The stator structure comprises a stator iron core, wherein the stator iron core comprises an outer split body and an inner split body, the outersplit body is of a ring-shaped structure; the inner split body is arranged in the outer split body in a penetrating mode; the inner split body comprises a base, a column body and side wings, and the base and the side wings are separately positioned at the two ends of the column body; in the radial direction of the column body, the dimension of the base and the dimensions of the side wings are greater than the dimension of the column body; an area among the base, the column body, the side wings and the outer split body defines an accommodating cavity for arranging a coil; and the base and the side wings are separately used for limiting the two ends of the coil. With the adoption of the technical scheme, the stator iron core is set to be a split structure, the coil can be directly wound on the column body of the inner split body, and the inner split body is assembled into the outer split body after the coil is wound, so that the original framework can be cancelled; and moreover, the baseand the side wings separately limit the two ends of the coil, and winding of the coil is relatively compact, so that winding turn number can be increased within a limited space, and a slot full rateis increased.

The invention provides a screw of a screw vacuum pump, and belongs to the technical field of vacuum pumps. The problem that the screw of the existing screw vacuum pump cannot meet the specific process conditions at present is solved. The number of turns of the upper spiral groove of a suction part, in the screw of the screw vacuum pump, is 0.75-1.25; when the number of turns of the upper spiral groove of a compression transition part is 1, the number of turns of the upper spiral groove of an exhaust part is more than 3; when the number of turns of the upper spiral groove of the compression transition part is more than 1, the number of turns of the upper spiral groove of the exhaust part is 1.75-4. The screw of the screw vacuum pump has the advantages that the vacuum pump is high in ultimate vacuum, is stable in performance while the manufacturing cost is almost not increased, and then more types of screw vacuum pumps are available with a more widespread application domain. In the screw vacuum pump adopting the pitch variable screw provided by the invention, the compression ability is optimized by appropriately increasing the number of turns of the spiral groove as wound, the exhaust efficiency of the exhaust part is improved, the excessive compression phenomenon because the air in the exhaust part cannot be exhausted is alleviated, and then the unit energy consumption is reduced effectively.

The invention discloses a pole-attached coil of a direct current motor and a winding method thereof, comprising: an elliptical ring body formed by winding one or more parallel motor winding wires; lead-out wire, and a second lead-out wire arranged at the end of the motor winding wire. The elliptical ring body includes a forward winding coil group and a reverse winding coil group formed by integral winding; the forward winding coil group and the reverse winding coil group are wound to form a relatively distributed first straight line part and a second straight line part , and the first arc-shaped portion and the second arc-shaped portion that are connected with the first straight line portion and the second straight line portion and are relatively distributed; At the outer end of the hole, the second lead-out wire is located at the outer end of the elliptical inner hole of the reverse winding coil group away from the elliptical ring body.

The invention relates to an electromagnetic force actuator for active support of an astronomical telescope mirror face. One end of the force actuator is connected with a supported mirror face through a force sensor, and the other end of the force actuator is fixed in a mirror cell. The electromagnetic force actuator is characterized in that a force output end of the force actuator is arranged on an axle at the center of the force actuator; two permanent magnets with strong magnetism are arranged on the center axle of the force actuator; a coil with an iron core is fixed on a shell of the force actuator; and the output of the force actuator is connected with a control system, and the control system is connected with the coil with the iron core. The electromagnetic force actuator for the active support of the astronomical telescope mirror face has the advantages that structure is simple, mass is low, energy consumption is low, control accuracy of input force is high, response speed is high, stroke of the force actuator is large, force adjusting range is wide, environment requirements are low, and the force actuator can be used in South Pole and even in space special environment. Connection of the force actuator and the mirror face is facilitated.

The invention discloses an electromagnetic repulsion coil based on a micro-arc oxidation method, which includes a valve metal disc, wherein a guide hole is arranged at the center of the valve metal disc, and a gap is opened on the valve metal disc, wherein , There is a ceramic oxide layer in the gap and the surface of the valve metal disc, and the gap is filled with silica gel. The electrical insulation performance and mechanical strength of the coil are excellent.