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Class 310/216 - Core features


Subclass of Class 310 - Electrical generator or motor structure
Definition: Subject matter relating to core features.
No. of applications: 362
Last issue date: 07/02/2009


                9    
Application No.Application TitleIssue Date
20050168098Dynamo electric machine
A dynamo-electric machine 1 comprising a stator 3 having a plurality of salient poles 14 wound with a coil 5, and a rotor 2 fixed with a plurality of permanent magnets 4 and disposed to rotate freely on the outer circumference o...
08/04/2005
20050168099Core having axially assembled core sub-parts and dynamo-electric machine member having the same
Teeth of a first core sub-part and teeth of a second core sub-part are alternately arranged in a circumferential direction. Each tooth has a tooth main body, which may include two tilted portions at two opposed circumferential ends, respectively, of the tooth main body....
08/04/2005
20050162024Bldc motor for washing machine
The present invention prevents peak noise caused by a resonance frequency, and reduces an overall noise of the system by binding core teeth of a stator of a BLDC motor with a vibration prevention member. To do this, the present invention provides a brushless DC motor fo...
07/28/2005
20050162034Soft magnetic composites
Electric motor components, such as a plurality of electromagnetic poles of an annular stator, are formed of soft magnetic composites comprising compacted, electrically isolated iron alloy particles. Embodiments comprise predetermining particular alloy compositions and p...
07/28/2005
20050162033Generating motor using magnetism's vector
A generating motor using magnetic vector includes at least one vector system using vector action and serving as a driving part, and at least one current system using magnetic current and serving as a generating part. ...
07/28/2005
20050146234Magneto generator
A rise in temperature of magneto coils can be suppressed, thereby improving the electrical efficiency, service life and reliability thereof. A flywheel (3) has a cylindrical portion (4), and is rotatable about an axis of rotation A-A. A plurality of magnet...
07/07/2005
20050140240Rotor, especially a short-circuit rotor for an electric machine, amd electric machine with a rotor
A rotor for an electrical machine (30), in particular a short-circuited rotor for an asynchronous machine, is proposed, whereby teeth (16) and grooves (13) alternate on the periphery, and the groove spacing (τn) is not constant. ...
06/30/2005
20050140244Axial gap electronic motor
There is provided an axial gap electronic motor capable of decreasing cogging torque and thus decreasing vibrations and noise. A stator of the motor has a magnetic force generating section 21 in which a plurality of stator iron cores 24 are arranged in a r...
06/30/2005
20050140241Electrodynamic Apparatus and method of manufacture
Electrodynamic apparatus such as a motor, generator or alternator is configured having a stator core assembly formed of pressure shaped processed ferromagnetic particles which are pressure molded in the form of stator modules. These generally identical stator modules ar...
06/30/2005
20050127775Outer rotor type motor for drum type washing machine and method for fabricating the same
Direct coupling type motor for drum type washing machine having a stator which can reduce material required for fabrication, and a weight after fabrication, simplify a fabrication process, and can be mounted on a fixing side, such as a tub or a bearing housing securely,...
06/16/2005
20050116579Motor for blowers
A blower motor of the present invention comprises a housing, a motor shaft supported in a bearing which is supported in the housing, a rotor which is fixed to the motor shaft and tapers off toward an air inlet, a stator which is fixed to the housing and tapers off towar...
06/02/2005
20050116578Small hand-held medical drill
A surgical instrument having an electric motor is discussed. The motor includes a motor output member, a driven member and a driving member. The driven member is coupled to the motor output member. The driving member includes a winding and a magnetically conductive port...
06/02/2005
20050110361Dynamoelectric machine stator and method for mounting prewound coils thereunto
A dynamoelectric machine stator core for receiving a pre-formed stator winding includes a core body defining a cylindrical core main peripheral surface. A plurality of axially extending stator slots are circumferentially spaced in the core body. Each of the stator slots...
05/26/2005
20050099086Electric machine
An electric machine includes a stator having slots of substantially rectangular cross section. The slots are subdivided into pairs of slots, with each pair of slots configured with parallel flanks, wherein teeth are formed between the slots and have alternating rectangu...
05/12/2005
20050093383Fan motor
A fan motor includes base, stator and rotor units. The base unit includes a base plate with a shaft tube extending therefrom. The stator unit includes a stator core member, stator coils, and a circuit board. The stator core member has a metal core body that includes a c...
05/05/2005
20050093392Electric motor having nanocrystalline alloy component for use in surgical procedure
An electric motor for use in a surgical procedure, including a motor output member, a driven member and a driving member. The driven member is coupled to the motor output member. The driving member includes a winding and a magnetic portion comprising a nanocrystalline a...
05/05/2005
20050093381Electrical machine and method of manufacturing the same
An electrical machine including a rotor and a stator. The stator includes a core and a coil disposed on the core. In one construction, the core is generally U-shaped and comprises magnetic material. The electrical machine also includes a bridge comprising magnetic mater...
05/05/2005
20050088047Brushless permanent magnet motor with high power density, low cogging and low vibration
A brushless permanent magnet electric machine includes a stator assembly having a stator core that defines (12×n) slots and stator teeth having a generally “T”-shaped cross section. Winding wire is wound around the stator teeth, wherein a radially outer edge of the...
04/28/2005
20050088056Automotive rotary electric machine
First and second permanent magnets are each disposed between circumferentially-adjacent pairs of first and second claw-shaped magnetic pole portions so as to contact a circumferential side surface of the first and second claw-shaped magnetic pole portions. An axial leng...
04/28/2005
20050082935Electrical machine whose rotor has a ferromagnetic pole core
The machine has a rotor with a ferromagnetic pole core, which is fitted with a winding arrangement composed of high-Tc superconductor material and surrounds a central internal area, via which the cooling power must be provided in order to cool the winding arr...
04/21/2005
20050082919Motor with stator made from linear core preform
A motor includes a stator having multiple conductors that create a plurality of magnetic fields when electrical current is conducted through the conductors. The stator has a pair of opposing end surfaces in contact with each other forming a toroidal core. A monolithic b...
04/21/2005
20050077798Different materials-laminate metal plate and different materials-laminate core, and method of producing the same
The invention is to provide a metal plate of laminated heterogeneous materials, and an iron core of the same, where a plurality of metal plates of different material qualities are easily and stably joined, have characteristics over many applications, may attain low prod...
04/14/2005
20050073210Permanent magnet motor
A permanent magnet motor having a stator back iron in the form of a “slinky” and a plurality of winding sections in circumaxially spaced relationship about the back rion. Each winding section comprises a conductor wound helically about the back iron with each coil a...
04/07/2005
20050073212Efficient axial airgap electric machine having a frontiron
A rotating, dynamoelectric machine, such as an electric motor, a generator, or a regenerative motor, comprises a stator assembly that includes a backiron section, a plurality of stator tooth sections, and a frontiron. The dynamoelectric machine has an axial airgap-type ...
04/07/2005
20050073211Laminated body of motor and manufacturing method thereof
A laminated body of a motor includes: a yoke part having a belt shape with a long length in comparison with its width and spirally laminated to form a hollow cylindrical shape; a plurality of teeth parts protruding from one side edge of the yoke part in a width directio...
04/07/2005
20050067911Stator for an electrical machine
A stator for an electrical machine is proposed that has a stator winding (45) that is held by a stator core (10) that is formed into an annular shape. The stator core (10) has grooves (14) and teeth (13) on its radially inwardly orient...
03/31/2005
20050067914Magneto-generator
Two end plates of a stator core are made of a metal material to increase their rigidity and thereby hold, in a prescribed shape, generation coils that are wound on teeth of the stator core. To increase the insulation between the generation coils and the teeth, the circu...
03/31/2005
20050067913Reduction of cogging torque in electric motors
An electric motor having reduced cogging torque. Motors have stator teeth separated by a slot, or space, which is filled with air and/or copper. The magnetic field present in the space is reduced, compared to that present in the iron cores. Thus, when the rotor rotates,...
03/31/2005
20050067912STATOR CORE, AN ELECTRIC MOTOR IN WHICH IT IS UTILIZED, AND METHOD OF MANUFACTURING A STATOR CORE
In a stator core is formed by laminated strip-shaped straight cores including a plurality of teeth portions, bent portions being provided with V-shaped notches, which define V-shaped gaps opened to one direction and interposing between each of the teeth portions, the st...
03/31/2005
20050067905Stator cooling method and apparatus
According to one embodiment of the present technique, forced air (i.e., air flow) is routed through a motor stator having corners and center ducts. Advantageously, by routing the air flow through ducts in accordance with the present technique, air flow is more evenly di...
03/31/2005
20050062356Electric machine with a damping device
An electric AC machine with a primary section and a secondary section is disclosed. The primary section has a region facing the secondary section and a region facing away from the secondary section. The region facing the secondary section has windings adapted to receive...
03/24/2005
20050062352UNIPOLAR TRANSVERSE MAGNETIC FLUX MACHINE
In a unipolar transverse flux machine, to attain a modular structure favorable in terms of production, the stator and the rotor each have the same number of identical stator modules and rotor modules. Each stator module includes an annular coil disposed coaxially to the...
03/24/2005
20050057104Stator core, and method and apparatus for producing the same
In a stator core having a plurality of teeth, which elongate in an inner radial direction and slots, which are configured among the teeth, powder is caused to adhere to the stator core, the powder adhering to an inner peripheral face of the stator core is removed, and t...
03/17/2005
20050046300Reduction of core-end losses of dynamoelectric machines by using lower core loss iron silicon punching
Electric machines can be improved or uprated to reduce core-end losses using lower core loss material such as high grade iron silicon. A machine uprating entails removing at least a last one of the stacked lamination packages at each end of the stator core, and re-stack...
03/03/2005
20050040728Selective alignment of stators in axial airgap electric devices comprising low-loss materials
An axial gap dynamoelectric machine comprises first and second stators disposed coaxially with an intermediate rotor. The stators are selectively aligned with an axial offset between the positions of their respective teeth and slots. The stators comprise toroidal cores ...
02/24/2005
20050034295Rotatable assemblies having chemically bonded lamination stacks
A rotor assembly or other rotating device having a stack of laminations or laminates that are chemically bonded together. Chemical bond of the laminates may have a strength that approaches the strength of the material of metal laminates. Chemical bonds may be effective ...
02/17/2005
20050029897STATOR FOR AN ELECTRICAL ROTATING MACHINE
An electrical rotating machine in which the laminated magnetic circuit of an external stator includes a stack of yokes each made from a magnetic metal sheet and disposed substantially parallel to a plane perpendicular to the axis and a plurality of teeth disposed inside...
02/10/2005
20050029894Core of rotation apparatus, method for manufacturing core, and rotation apparatus
A motor includes a stator having magnets, a rotor having teeth, a commutator secured to the rotor, and brushes. A coil is wound about each tooth. The commutator is connected to the coils. The brushes slidably contact the commutator. The number of the magnets and the num...
02/10/2005
20050023925Motor and motor manufacturing apparatus
Flat rolled magnetic steel sheets and strip or a die is turned in the press forming process. Rotor cores are stacked with turning through an angle which is an odd number multiple of about (360°/(number of slots in the motor×natural number n×2)) and stator cores are s...
02/03/2005
20050023924High speed generator with rotor coil support assemblies secured to interlamination disks
A rotor for a high speed generator is constructed of a plurality of laminations and interlamination disks, which are disposed between each of the laminations. A coil support assembly is disposed within each of the rotor interpole regions and is secured to the interlamin...
02/03/2005
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