8 results about "Flux lines" patented technology

The present application relates to a kind of stator profiled mixed lamination structure and motor thereof, including by the first stator sheet of multiple pieces Axially laminated and formed radial lamination group, the radial lamination group is annular, the radial lamination group includes multiple stator teeth and the stator yoke at the tail of the stator tooth, further including by the second stator sheet of multiple pieces Radially laminated and formed axial lamination group, the middle part of the stator yoke is provided with slot, the axial lamination group is inserted into the slot, the second stator sheet is perpendicular to the first stator sheet, the axial lamination group is formed in radial along the limit of the magnetic flux line from circumferential to radial Staircase shape.The axial lamination group is formed in radial along the limit of the magnetic flux line from circumferential to radial in the present application Staircase shape, modulates the magnetic force line distribution of leakage magnetic region, to enhance the salient pole effect of stator, enlarge the weak magnetic region of motor and promote the highest speed.

The invention relates to a stator special-shaped hybrid lamination structure and a motor thereof, the stator special-shaped hybrid lamination structure comprises a radial lamination group formed by axially laminating a plurality of first stator steel sheets, the radial lamination group is annular, and the radial lamination group comprises a plurality of stator teeth and stator yokes located at the tails of the stator teeth; the axial lamination group is formed by laminating a plurality of second stator steel sheets along the radial direction, a slot is formed in the middle of the stator yoke, the axial lamination group is inserted into the slot, the second stator steel sheets are perpendicular to the first stator steel sheets, and the second stator steel sheets are perpendicular to the first stator steel sheets. And the axial lamination group turns along the boundary of the magnetic flux line from the circumferential direction to the radial direction to form a step shape. The axial lamination group turns along the boundary of the magnetic flux line from the circumferential direction to the radial direction to form a step shape, and the magnetic line distribution of the magnetic leakage area is modulated, so that the stator salient pole effect is enhanced, the weak magnetic area of the motor is expanded, and the maximum rotating speed is increased.

This utility model relates to the field of electrical engineering technology and discloses a zero-flux current transformer, including a housing, an insulating bushing, a base, and a transformer body. The transformer body is vertically mounted inside the housing, and a primary conductor is installed inside to carry high-voltage direct current. A zero-flux coil is installed at the upper end of the transformer body to sense the magnetic field generated by the current in the primary conductor and output a secondary current. The zero-flux coil is located inside a shield and grounded to improve measurement accuracy and stability. The transformer is filled with SF6 gas for electrical insulation, and a silicone rubber coating is provided on the outside of the zero-flux coil as a buffer layer to protect the coil from the influence of internal gas pressure. The transformer body is connected in series in a DC circuit system through the primary conductor, and the secondary current is introduced into the zero-flux electronic module via a cable to output a secondary signal. This utility model improves the measurement accuracy and stability of the current transformer, enhances safety and reliability, and is suitable for high-voltage direct current environments.

A magnetic induction furnace configured to heat solid or tubular metal billets, of various lengths and diameters, made of non-ferrous materials. The furnace includes a fixed body in which there is arranged an electric motor having an annular rotor rotatably disposed in a stator. The annular rotor is joined to a rotor body carrying a plurality of permanent magnets arranged so as to define a hollow magnetic cylinderhaving a cavity configured to contain a non-rotating billet to be heated. The permanent magnets of the rotor body comprise main permanent magnets magnetized in the radial direction with respect to such rotor body and auxiliary permanent magnets magnetized in the axial direction. The permanent magnets generate flux lines of a magnetic field directed inwardly, towards an interior of the cavity configured to contain the billet so as to improve the heating thereof.

Base components are placed into recesses of a holder. Each recess includes a flat bottom surface parallel to a horizontal direction. A lid is placed above the holder at a predetermined distance from the bottom surface. A magnetic field with a magnetic flux line intersecting perpendicularly with the bottom surface is caused to act on the base components in the recesses to rotate the base components about their longitudinal axes to have internal electrode layers parallel to the magnetic flux line.

A zero-flux coil on-off detection device disclosed by the present invention comprises an excitation power supply module, a transmitting coil, a receiving coil and a signal processing module, the excitation power supply module is electrically connected with the transmitting coil, and the excitation power supply module is used for providing a stable current for the transmitting coil, so that the transmitting coil generates a magnetic field; the transmitting coil is arranged on one side of the track and is parallel to the zero-flux coil, the signal processing module is electrically connected with the receiving coil, the receiving coil is arranged on the other side of the track and is parallel to the zero-flux coil connected with the transmitting coil side through a hinge line, and the signal processing module is used for detecting whether the transmitting coil and the receiving coil move synchronously or not when the transmitting coil and the receiving coil move synchronously. And receiving the output voltage of the coil. According to the invention, the on-off detection of the zero-flux coil can be realized, and serious consequences caused by the disconnection fault of the zero-flux coil can be effectively prevented.

The invention discloses a novel zero-flux coil and a design method thereof, relates to the technical field of transient electromagnetic exploration, and solves the problem that primary field interference is difficult to eliminate in the prior art. The novel zero-flux coil and the preparation method thereof, the parameter optimization method and the signal acquisition method have the remarkable technical advantages that firstly, almost complete shielding of a primary field is achieved through special structure configuration of the inner and outer double receiving coils and accurate turn ratio calculation; secondly, determining a d = 0 plane configuration through a parameter optimization method, and enabling a longitudinal stability coefficient to be far higher than that of an existing structure; thirdly, signal oscillation caused by asymmetry of factor coil parameters is effectively eliminated through a double-damping method; and finally, through a specific signal acquisition method, secondary field signals are superposed while the primary field is suppressed, and the detection sensitivity is obviously superior to that in the prior art.

A non-linear superconducting quantum circuit having a first mode and a second mode is disclosed, wherein the first and second modes have respective resonant frequencies. The circuit is configured such that the resonant frequency of the second mode is substantially 2N times the resonant frequency of the first mode when a predetermined current of a constant intensity is applied to the circuit. The circuit intrinsically performs a resonant 2N-to-1 photon exchange between the first and second modes, with N being a positive integer, and thus improving the circuit. When this circuit receives a predetermined current and when the second mode is driven appropriately, the circuit can stabilize a cat-qubit. In a symmetrical version of this circuit, a flux line has been developed to allow RF coupling to the second mode and not to the first mode, allowing the stabilization to be turned off and quantum measurements to be performed.