Sanyo Electric Co., Ltd.

Takashi Uchino

Kenji Taguchi

Hiroaki Sagara

Tetsuji Ueta

Takeshi Nagao

Yukifumi Yamaguchi

Nozomu Nambu

Akio Hagiwara

Takahiko Masumoto

Keiji Kishimoto

Hiroshi Kaneko

Kazuhiro Tomoshige

Yoshihiko Kon

A molded motor includes a ring-shaped stator and a rotor disposed inside the stator. The stator has teeth, insulators surrounding the teeth, coils wound around the insulators, and a molded part molding the teeth, insulators and coils. The insulators are partially exposed from the molded part.

Molded motor and electric vehicle

An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a position detecting circuit board including a position detecting element configured to detect a position of the rotor. The stator has a cavity for accommodating the rotor. One end of the cavity is covered by the mold resin. The position detecting circuit board is placed on an opposite side from the rotor across the mold resin covering the one end of the cavity.

Electric motor and electric motor vehicle

An electric motor includes: a stator of columnar shape including a stator core of annular shape and mold resin molding the stator core, the stator core accommodating a rotor configured to rotate about a rotary shaft; and a temperature detecting element buried in the mold resin. The stator core includes a plurality of stator teeth around which a coil wounded around respectively. The temperature detecting element is buried in the mold resin from any one of the pair of end surfaces at a position between two adjacent stator teeth.

An electric motor comprising an annular stator core, a resin molding the stator core, a casing member housing the stator core, wherein the casing member has an opening, and the resin is filled into the opening.

Electric motor having an encapsulated stator for a vehicle braking device

A stator includes multiple motor coils. The motor coils include multiple U-phase coils, multiple V-phase coils and multiple W-phase coils which are arranged in a circumferential direction of a motor. A neutral bus ring connects the motor coils together. The neutral bus ring is divided into multiple bus ring members. Each bus ring member connects together any one of the U-phase coils, any one of the V-phase coils and any one of the W-phase coils.

Motor with neutral bus ring connecting multiple motor coils

A molded motor includes an annular stator formed by molding coils in resin, a rotor disposed in an internal space which is formed radially inside the stator, a cover covering the internal space, and an elastic member sandwiched between the cover and the stator and located at a more inner side in the radial direction of the stator from the coils.

An aspect of the invention provides a motor that comprises: a stator including multiple motor coils; multiple bus rings configured to distribute currents of different phases to the motor coils; and a ring-shaped bus ring holder in which multiple holding grooves configured to hold the respective bus rings are formed, wherein: each of the motor coils includes an insulator around which a wound wire is wound; the insulator includes an outer flange formed at an outer side of the wound wire in a radial direction of the motor and extending in an axial direction of the motor; and the bus ring holder is arranged at an outer side of the outer flange in the radial direction of the motor, and contiguous to the outer flange.

Motor with multiple bus rings

Included are a rotor, and a stator having a yoke section and a teeth section including multiple teeth. The teeth section and the yoke section are made of mutually independent configuration members, and connected to each other. At least one of the teeth section and the yoke section is formed by connecting each neighboring two of its multiple segments arranged one after another in a direction in which the rotor rotates. At least some neighboring teeth out of the multiple teeth are unified.

Motor including a teeth section and a yoke section which are formed of mutually independent configuration members

Volume adjustment is performed in small steps at a DSP () and volume adjustment is performed in wide steps at electronic volume circuits (L,R). Adjustment only by the DSP () is performed for a small volume range less than or equal to a predetermined level. For a volume higher than or equal to the predetermined level, fine adjustment by the DSP () at the transient period of volume adjustment is combined to reduce the increment of variation so that the volume adjustment is performed gradually.

Level adjustment circuit

This non-volatile multi-state memory device switches a storing resolution of multi-state data corresponding to digital data stored in a non-volatile memory cell according to the data's characteristics. In more detail, digital audio data are output from an ADPCM encoder in n-bit units and m bits of address data indicating an address at which audio data are stored are output from an address controller. These are then input to a switching circuit, a bit number converting circuit converts m bits of address data to n bits of address data at the same level as the m bit data, and the converted n bits of address data and n bits of audio data are inputted to a second multiplexer. An output of the Second multiplexer is then selected in compliance with a switch signal from the address controller and either the selected n bits of address data or the audio data are sent to a read-write circuit. Consequently, for example, writing is carried out with storing resolution deemed as 16 when 4 bits of audio data are stored in an EEPROM cell array and storing resolution deemed as 2 when for instance 1 bit of address data is stored.

Non-volatile multi-state memory device capable with variable storing

Inputted digital data are held in a data register and converted to multi-state analog amount by a resistance dividing circuit and a decoder. A comparator compares an analog amount read from a non-volatile memory cell with a converted analog amount; and in accordance with this comparison result, a writing voltage is supplied to a memory cell. A first bias generating circuit is provided for generating two different types of bias voltages as this writing voltage, MOS transistors are inserted as respective switches to the bias voltage supply lines and writing voltages are switched by selectively ON/OFF-controlling one of the MOS transistors in accordance with the upper bit of the inputted digital data. As a result, unnecessary writing time can be eliminated, time required for executing writing can be reduced and circuit configuration can be simplified.

Non-volatile multi-state memory device with memory cell capable of

A data register for holding input digital data, a resistance dividing circuit for generating a plurality of analog voltages, a decoder for decoding the data of the data register and selectively outputting one of a plurality of analog voltages and a comparator for comparing this decoded output with an analog amount read from a memory cell are provided. In write mode, this memory device sets data to be written in the data register and writes an analog amount corresponding to the set data in the memory cell, in read mode, the apparatus sequentially sets in the data register digital data updated in sequence from a designated value, executes comparison at the comparator for each setting and terminates the digital data setting in response to the comparison result at the data register, thus digital data corresponding to the analog amount read from the memory cell is thereby obtained at the data register. As a result, circuit configuration can be simplified and circuit scale reduced.

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Hirakata, Japan

Takashi Uchino