PUMP AND AIR SUPPLY DEVICE

WIPO Patent Application WO/2021/200424

A1

A pump 1 has a pump part 80 that sucks in and discharges air by electromagnetic driving of a vibration actuator 10. The vibration actuator 10 includes: a stationary body 20 to which the pump part 80 is attached, the stationary body 20 including one of a coil core part 62 with a coil 50 wound around a core part 60, and a magnet 70 disposed to face an end of the core part 60; a movable body 30 including the other of the coil core part 62 and the magnet 70, and elastically held by a magnetic attractive force of the magnet 70; and a shaft part 40 supporting the movable body 30 so as to be reciprocally rotatable. The pump part 80 includes a movable wall 822 that is moved by a rotational movement of the movable body 30, and a sealed chamber 82 having a capacity that is changed by a displacement of the movable wall 822. The movable body 30 comes into contact with a movable wall 322, at a pressing part 35 that moves in an arc around the shaft part 40 with a reciprocal rotational motion of the movable body 30, presses the movable wall 322, and discharges air in the sealed chamber 82 through a discharge part 86.

JP6052475

Fluid control apparatus

YOSHII YUTA (JP)
INAMOTO SHIGENORI (JP)
TAKAHASHI YUKI (JP)
SEKIGUCHI CHIKARA (JP)
KODAMA DAISUKE (JP)
KURITA DAISUKE (JP)

PCT/JP2021/012112

October 07, 2021

March 24, 2021

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MINEBEA MITSUMI INC (JP)

F04B45/047; B06B1/04

JPS5139813U	1976-03-25
CN1420272A	2003-05-28
JPS60142073A	1985-07-27
JP2002106471A	2002-04-10
JP2019075966A	2019-05-16

ASAHI, Kazuo et al. (JP)

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