Abstract: A method for manufacturing a magnet module. The method may include injecting a magnet module including a plurality of magnetless magnets arranged in a straight line; and magnetizing the plurality of magnetless magnets mounted on the injected magnet module. The injecting of a magnet module may include mounting the plurality of magnetless magnets to a first part forming a frame of the magnet module in a mold frame including first and second mold frames molded inside to fit an external shape of the magnet module; injecting a resin in a liquid state into the mold frame; and separating the mold frame when the resin is hardened. The injecting of a magnet module may further include mounting a metal plate to a second part forming a base of the magnet module in the mold frame, before performing the step of injecting a resin in a liquid state into the mold frame.

Abstract: A linear motor is provided. The linear motor according to an embodiment of the present disclosure may comprise: a primary member including a plurality of armature modules, each armature module including a magnet core including two or more protruding portions and a coil; and a secondary member including at least one magnet module. The primary member may be fixed and a movable member composed of the secondary member moves by generated thrust. And, along the moving direction, a first interval between first armature modules disposed in a first section may be different from a second interval between second armature modules disposed in a second section after the first section.

Abstract: A linear motor is provided. The linear motor according to an embodiment of the present disclosure may comprise: a primary member including a plurality of armature modules, each armature module including a magnet core including two or more protruding portions and a coil; and a secondary member including at least one magnet module. The primary member may be fixed and a movable member composed of the secondary member moves by generated thrust. And, along the moving direction, a first interval between first armature modules disposed in a first section may be different from a second interval between second armature modules disposed in a second section after the first section.

Abstract: A method for manufacturing a magnet module. The method may comprise injecting a magnet module including a plurality of magnetless magnets arranged in a straight line; and magnetizing the plurality of magnetless magnets mounted on the injected magnet module. The injecting of a magnet module may comprise: mounting the plurality of magnetless magnets to a first part forming a frame of the magnet module in a mold frame comprising first and second mold frames molded inside to fit an external shape of the magnet module; injecting a resin in a liquid state into the mold frame; and separating the mold frame when the resin is hardened. The injecting of a magnet module may further comprise mounting a metal plate to a second part forming a base of the magnet module in the mod frame, before performing the step of injecting a resin in a liquid state into the mold frame.

Abstract: A linear motor is provided. The linear motor includes a first member including a plurality of armature modules each comprising a magnetic core, a plurality of salient poles, and coils, where the coils are wound around a portion or all of the salient poles or the magnetic core between the salient poles; and a second member including one or more permanent magnet modules each including a plurality of permanent magnets each projected toward the magnetic core to be arranged between two salient poles of the armature module, where poles of the permanent magnets are alternated in a moving direction of the linear motor. Power is supplied to the coil of each armature module such that a thrust according to a traveling magnet fie is generated by using as one unit an S number of armature modules and a P number of permanent magnets arranged in the moving direction.

Abstract: A linear motor is provided. The linear motor includes a first member including a plurality of armature modules each comprising a magnetic core, a plurality of salient poles, and coils, where the coils are wound around a portion or all of the salient poles or the magnetic core between the salient poles; and a second member including one or more permanent magnet modules each including a plurality of permanent magnets each projected toward the magnetic core to be arranged between two salient poles of the armature module, where poles of the permanent magnets are alternated in a moving direction of the linear motor. Power is supplied to the coil of each armature module such that a thrust according to a traveling magnet fie is generated by using as one unit an S number of armature modules and a P number of permanent magnets arranged in the moving direction.

Abstract: The conventional linear drive apparatus has the problem that in constructing a linear motor of a multiphase structure by connecting a plurality of armature units, the length of the armature becomes longer in proportion to the number of the phases, thus limiting the locations where the apparatus can be installed. The problem is solved by a linear drive apparatus comprising a plurality of armature units 3 formed by a magnetic material on which a conductor coil 4 is disposed, and an armature comprising an arrangement of the armature units 3. The armature units 3 comprise a plurality of opposing portions having opposing magnetic pole teeth. The magnetic pole teeth of adjacent opposing portions are arranged in an interdigitated manner. A secondary member 6 is disposed between magnetic pole teeth of the opposing portions. The armature units 3 comprise the coil 4 arranged on opposite sides thereof in an alternating manner.

Abstract: An electric rotary machine is disclosed which can adjust relative angles of sub-rotors continuously and regardless of torque direction without generating an attractive force between the field magnets of the sub-rotors. The electric rotary machine includes: a stator having a winding; a dual rotor which is rotatably disposed with a gap from the stator and divided axially along a shaft into a first rotor and a second rotor each having field magnets with different polarities arranged alternately in a rotation direction; a mechanism for varying the axial position of the second rotor relative to the first rotor continuously; and a non-magnetic member located between the first rotor and the second rotor.

Abstract: A linear motor includes a stator having an armature winding and a mover having permanent magnets, the stator and the mover arranged to be movable relatively, the stator forming a magnetic circuit including ring-form cores, armature teeth and the armature winding in order to prevent a large load from acting on a support mechanism of the mover to cause various troubles due to distortion of a structure when one-directional magnetic attraction acts between an armature and the mover. Slit grooves are disposed in the armature teeth opposite to both front and back sides of the permanent magnets of the mover through gap and protruding members capable of being moved along the slit grooves of the armature teeth are disposed on the surface of the permanent magnets, so that the magnetic attraction is canceled and the rigidity of members made of the permanent magnets is enhanced.

Abstract: An object of the present invention is to provide a hybrid vehicle having a simple system configuration. The hybrid vehicle comprises an engine 10; a continuously variable transmission 20 connected to an output shaft of the engine 10; and a rotating electric machine 100 operating as a motor or a generator. The rotating electric machine 100 is the permanent magnet field type having field-generating permanent magnets 124 in a rotor. The rotating electric machine 100 is also the variable flux type having a first rotor 120A and a second rotor 120B rotatably provided on the inner circumference of a stator 110 so that the amount of effective magnetic flux can be varied through means for adjusting the relative phase angle by changing a magnetic pole position by permanent magnets of the second rotor 120B relative to a magnetic pole position by permanent magnets of the first rotor 120A.

Abstract: A linear motor is provided in which a magnetic attracting force acting between a stator and a mover is mechanically cancelled by arrangement of armature units, and can be easily assembled. The linear motor includes a primary-side member in which magnets are arranged in a traveling direction and a secondary-side member in which armature units each including a core and an armature winding are arranged in the traveling direction and in which a spacer is interposed between the armature units. The primary- and secondary-side members relatively move. When a side-surface member is slid in Y direction, the dovetail groove of the side-surface member and the dovetail tenon of the spacer are fitted together, and are combined together in a dovetail joint. When an upper-surface member is slid in the X direction, the dovetail groove and tenon are fitted together to have a dovetail joint there. The armature units and the spacers are combined together.

Abstract: In prior art linear motor, a large burden is applied to a mechanism for supporting a moving member because a magnetic attracting force acts in one direction between armature and moving member and the structure is distorted to cause various troubles. In an inventive linear motor, a stator having an armature winding and a moving member having permanent magnets are arranged to be moved relatively. The stator of the linear motor includes a ring-shaped core, armature teeth and the armature winding to form a magnetic circuit. Slit grooves are formed in armature teeth opposed to both of front and rear surfaces of the permanent magnets of the moving member with an air gap defined between the stator and the moving member. A member holding the plurality of permanent magnets has holes for allowing a medium to enter or exit.

Abstract: In prior art linear motor, since magnetic attractive force acts in one direction between an armature and a moving member, heavy burden is imposed on a supporting mechanism of the moving member, distorting the structure and causing various troubles. Inventive linear motor includes a stator having armature winding and moving member having permanent magnets arranged to move relatively. The linear motor stator includes rink-like cores, armature teeth and armature winding to constitute a magnetic circuit. Slit grooves are disposed in the armature teeth opposite to both of the obverse and reverse sides of the permanent magnets of the moving member through air gap and protrusion members movable along the slit grooves of the armature teeth and a member having the permanent magnets include a part in contact with other members, the part being made of material having high endurance.

Abstract: In prior art linear motor, large burden is applied to a mechanism for supporting a moving member because magnetic attracting force acts in one direction between armature and moving member and the structure is distorted to cause various troubles. In inventive linear motor, a stator having armature winding and moving member having permanent magnets are arranged to move relatively. The linear motor stator includes a ring-shaped core, armature teeth and armature winding to form a magnetic circuit. Slit grooves are formed in armature teeth opposed to both of front and rear surfaces of the permanent magnets of the moving member with an air gap defined between stator and moving member. Projected members movable along the slit grooves of the armature teeth are provided on the permanent magnet surfaces. Thus magnetic attracting force can be canceled and the member having the permanent magnets can have a high rigidity.

Abstract: In prior art linear motor, magnetic attractive force acts in one direction between armature and moving member, imposing heavy burden on a supporting mechanism of the moving member, distorting the structure and causing various troubles. Furthermore, permanent magnets' surface is difficult to protect. The inventive linear motor includes a stator having armature winding and moving member having permanent magnets arranged to move relatively. The stator includes ring-like cores, armature teeth and armature winding to constitute a magnetic circuit. Slit grooves are disposed in the armature teeth opposite to both of obverse and reverse sides of the permanent magnets of the moving member through air gap and protrusion members movable along the slit grooves of the armature teeth and a member having a hollow part formed therein are provided. The permanent magnets are disposed in the hollow part so that magnetic poles adjoining along the moving direction have different polarities.

Abstract: A linear motor for generating a linear motion in a linear direction, has a plurality of first members, each of which includes an electromagnetic coil for generating a first magnetic field, and a magnetic core (magnetically permeable) having magnetic surfaces being opposite to each other so that the first magnetic field passes a space between the magnetic surfaces, and a second member arranged in the spaces to be relatively movable linearly with respect to a combination of the first members to generate the linear motion in the linear direction, and including a magnet polarized in a polarizing direction to generate a second magnetic field.

Abstract: In order to reduce load supported by a support mechanism for supporting a movable part so as to prevent the movable part from moving in a horizontal direction when stress is generated thereon in the horizontal direction, there is provided a drive unit including a primary side having a magnetic body around which a coil is wound, and a secondary side having a plurality of permanent magnets, the primary side including magnetic poles and step portions provided on the magnetic poles. The width of each step portion is smaller than the width of each permanent magnet.

Abstract: The conventional linear drive apparatus has the problem that in constructing a linear motor of a multiphase structure by connecting a plurality of armature units, the length of the armature becomes longer in proportion to the number of the phases, thus limiting the locations where the apparatus can be installed. The problem is solved by a linear drive apparatus comprising a plurality of armature units 3 formed by a magnetic material on which a conductor coil 4 is disposed, and an armature comprising an arrangement of the armature units 3. The armature units 3 comprise a plurality of opposing portions having opposing magnetic pole teeth. The magnetic pole teeth of adjacent opposing portions are arranged in an interdigitated manner. A secondary member 6 is disposed between magnetic pole teeth of the opposing portions. The armature units 3 comprise the coil 4 arranged on opposite sides thereof in an alternating manner.

Abstract: In a rotary electric machine capable of improving the reliability of an object provided with the same, a permanent magnet type synchronous rotary electric machine comprises has a stator provided with windings. A rotor arranged supported for rotation in the stator with a gap between the inner surface of the stator and the outer surface thereof, is divided into two rotor bodies each provided with permanent magnets of opposite polarities alternately arranged in a circumferential direction. In switching the permanent magnet type synchronous rotary electric machine from a motor to a generator, a second rotor body is moved axially relative to a first rotor body to an axial position that makes the intensity of a combined magnetic field created by the permanent magnets lower than that of a combined magnetic field created by the permanent magnets when the second rotor body is located at a predetermined position, and then the second rotor body is moved to the predetermined position.

Abstract: A drive apparatus overcomes the problems of ensuring accurate mounting of a plurality of armature coils relative to a plurality of magnetic pole position detectors, limitations concerning the location for mounting, and the extension of primary-side length. The drive apparatus comprises a primary side including an arrangement of a plurality of armatures each having a core made of a magnetic material with coil windings. It also comprises a secondary side including a permanent magnet movably supported relative to the armatures via a gap. A magnetic pole position detector is disposed between adjacent armatures.