Abstract: A motor attaching structure and a motor attaching method capable of preventing vibration from occurring are provided. A shaft holding a rotor of a motor rotatable thereon is fixed to a first holder. An annular second holder holds a core serving as a stator of the motor with a peripheral portion thereof being arranged between a case and the first holder. Screws to be used as fixing members fix the case, the first holder, and the second holder integrally to each other. The second holder further includes a holding portion which holds the stator and an absorbing portion located between the peripheral portion and the holding portion and possessing a thickness less than the peripheral portion.

Abstract: According to one embodiment, a CPAP device includes a housing, a fan, and a sound absorbing material. The housing has a first air inlet and a first air outlet, and a flow channel guiding air sucked through the first air inlet to the first air outlet. The fan has a second air inlet and a second air outlet, the second air inlet is disposed in the direction intersecting the flow channel, and the second air outlet is disposed in the direction along the flow channel. The sound absorbing material is provided with a recess constituting a part of the flow channel and facing the second air inlet of the fan, the recess having a diameter which is greater than a diameter of the second air inlet of the fan and which is equal to or smaller than the width of the flow channel.

Abstract: A fan unit produces an airflow. A pressure difference generating member causes a pressure difference in the airflow. A sensor detects a pressure difference between the air pressure on the upstream side of the pressure difference generating member and the air pressure on the downstream side thereof. A straightening plate is provided between the fan unit and the pressure difference generating member, and straightens the airflow produced by the fan unit. A straightening plate comprises a first fin and a second fin which are arranged along the airflow, and a lattice-like third fin which is arranged on the downstream side of the first fin and the second fin, and through which the airflow through the first fin and the second fin passes.

Abstract: According to one embodiment, a CPAP device includes a housing, a fan, and a sound absorbing material. The housing has a first air inlet and a first air outlet, and a flow channel guiding air sucked through the first air inlet to the first air outlet. The fan has a second air inlet and a second air outlet, the second air inlet is disposed in the direction intersecting the flow channel, and the second air outlet is disposed in the direction along the flow channel. The sound absorbing material is provided with a recess constituting a part of the flow channel and facing the second air inlet of the fan, the recess having a diameter which is greater than a diameter of the second air inlet of the fan and which is equal to or smaller than the width of the flow channel.

Abstract: A fan unit produces an airflow. A pressure difference generating member causes a pressure difference in the airflow. A sensor detects a pressure difference between the air pressure on the upstream side of the pressure difference generating member and the air pressure on the downstream side thereof. A straightening plate is provided between the fan unit and the pressure difference generating member, and straightens the airflow produced by the fan unit. A straightening plate comprises a first fin and a second fin which are arranged along the airflow, and a lattice-like third fin which is arranged on the downstream side of the first fin and the second fin, and through which the airflow through the first fin and the second fin passes.

Abstract: There is provided a CPAP device in which an outflow sound of air is reduced while size reduction/weight reduction is maintained. The CPAP device includes a blower unit 10 which houses a turbofan 50 to draw in air and sends out the air and in which an air outflow opening to allow the air sent out from the turbofan 50 to flow out is formed, and a silencer 60 which is attached to one end of a hose 70 to feed the air flowing out from the air outflow opening to a mask 200 attached to a patient, is attachably and detachably attached to the air outflow opening of the blower unit 10 and reduces the outflow sound of the air flowing out from the air outflow opening, and the silencer 60 includes a regulating plate 69.

Abstract: A CPAP device in which the compatibility between size reduction/weight reduction and reduction of inflow sound is achieved is provided. The CPAP device includes a housing 11 which includes an air inflow opening 11a and an air outflow opening 11b, a turbofan 50 which is housed in the housing 11 to draw in air and send out the air, and a silencer 40 which is housed in the housing 11, composed of sound absorbing members 41 and 42, includes an air flow path 411 having a tabular shape, and reduces an inflow sound of the air flowing in from the air inflow opening 11a to feed the air to the turbofan 50.

Abstract: The present invention relates to a CPAP device and a blower unit, and achieves the compatibility between reductions in size and in weight and noise reduction in a high order. A blower unit 10 includes a casing 11 including an air suction port 111, a fan 50 which has an air receiving port 531 and an air sending port 542, is provided with a fluid dynamic bearing, causes air to be suctioned from the air suction port 111 to receive the air from the air receiving port 531 and sends out the air from the air sending port 542, and an emission silencer 17 which is coupled to the air sending port 542 and reduces sounds as the air flows which air is sent out from the air sending port 542 by the fan 50.

Abstract: The present invention relates to a CPAP apparatus, and obtains compatibility between convenience of handling and easing of loads to a patient is obtained in a high order. An air blowing unit 10 including a fan provided with an air dynamic bearing, and a hose connecting the air blowing unit with a nasal cannula or a mask 200 are included, and the air blowing unit 10 is supported at a position away from a head 310 of a patient 300 by other than the hose 20, and the hose 20 follows changing of posture of the patient 300, and the air blowing unit 10 changes a position or a posture thereof by receiving a force via the hose 20.