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    • 6. 发明专利
    • Brush structure of the outer armature motor
    • JP5292328B2
    • 2013-09-18
    • JP2010019005
    • 2010-01-29
    • アスモ株式会社トヨタ自動車株式会社
    • 晃久 松下恒造 吉澤直久 三村樹亮 影目
    • H02K23/62H02K13/00
    • Y02T10/641
    • PROBLEM TO BE SOLVED: To provide a brush structure of an outer armature motor in which a pressurizing route from a biasing unit to a slip ring through a feed brush and a pressurizing route from the biasing unit to a commutator through a commutator brush are both made short and simple. SOLUTION: The outer armature motor includes: a rotor having permanent magnets attached on an outer circumferential surface; a stator which is disposed on the outer circumference of the rotor so as to face the permanent magnets and has an electric wiring; a slip ring unrotatably fixed to the stator side and electrically connected to an external power supply; the commutator unrotatably fixed to the stator side and electrically connected to the electric wiring; and brushes disposed in the inside of each of a plurality of through-holes formed on the rotor penetrating in an axial direction. The brushes include the feed brush formed on one end in the axial direction to contact the slip ring; the commutator brush formed on the other in the axial direction to contact the commutator; and the biasing unit formed between the feed brush and the commutator brush to bias both brushes to the outside of the axial direction. The biasing unit is made of a feed member having conductivity. COPYRIGHT: (C)2011,JPO&INPIT
    • 8. 发明专利
    • Speaker with muffler
    • JP4867855B2
    • 2012-02-01
    • JP2007221217
    • 2007-08-28
    • トヨタ自動車株式会社
    • 晃久 松下
    • F01N1/02F01N1/00F01N1/04G10K11/16G10K11/178
    • PROBLEM TO BE SOLVED: To materialize miniaturization of a muffler with a speaker generating sound in the reverse phase of exhaust noise. SOLUTION: The inside of a muffler main body 1 is divided by partition plates 1d-1f to provide a low frequency resonance chamber 11reducing low frequency noise, an expansion chamber 12 reducing middle frequency noise, an interference chamber 13 muffling exhaust noise by making speaker sound interfere with exhaust noise, and an enclosure 14 of a speaker 3. The interference chamber 13 is disposed at the most downstream part, and the low frequency resonance chamber 11 and the expansion chamber 12 are disposed at upstream of the interference chamber 13. By such a structure, energy of exhaust noise (sound pressure level) can be sufficiently reduced by low frequency resonance effect and expansion effect before noise is propagated to a disposition position of the speaker, and sufficient muffling effect can be provided even if output sound pressure level of the speaker is reduced. Consequently the speaker can be miniaturized and miniaturization of the muffle can be materialized. COPYRIGHT: (C)2009,JPO&INPIT