Abstract: An electric blower includes a motor unit, a shaft, a centrifugal impeller, a fan cover, a motor unit case, and a bracket located away from centrifugal impeller and toward motor unit in a direction in which a central axis of the shaft extends. The bracket includes a first portion located outward of the vent in a radial direction, and a second portion located outward of the first portion and outward of an outer circumference of the motor unit case in the radial direction. A first airflow passage and a second airflow passage are formed in the bracket, the first and second airflow passages communicate with an airflow passage formed by the centrifugal impeller and the fan cover.

Abstract: An induction heating cooker according to the present invention has a top plate on which a heater area indication indicating a mount position of to-be-heated object is formed, and a first coil and a second coil that are formed of an annular coil arranged below the heater area indication of the top plate, the second coil includes a first winding portion extending in a circumferential direction of the first coil, and a second winding portion spaced apart from the first winding portion and extending in the circumferential direction of the first coil, and the distance between the first winding portion and the top plate is different from the distance between the second winding portion and the top plate.

Abstract: An inductive heating cooker includes a main body and a power-receiver device. The main body includes a top plate on which a heating target is placed, a heating coil provided under the top plate and configured to inductively heat the heating target, a drive circuit configured to supply electric power to the heating coil, a power transmission coil configured to transmit the electric power by magnetic resonance, and a power transmission circuit configured to supply the electric power to the power transmission coil. The power-receiver device includes a power reception coil configured to receive the electric power from the power transmission coil by the magnetic resonance, and a load circuit configured to operate by the electric power received by the power reception coil.

Abstract: A heating cooker system according to the present invention includes: an induction cooker including a first coil configured to produce a first high-frequency magnetic field for induction heating, a first inverter circuit configured to supply a first high-frequency current to the first coil, a second coil configured to produce a second high-frequency magnetic field, and a second inverter circuit provided independently of the first inverter circuit and configured to supply a second high-frequency current to the second coil; and a cooking device including a power receiving coil configured to wirelessly receive supply of electric power from the second high-frequency magnetic field when the power receiving coil is positioned in the second high-frequency magnetic field, and a cooking unit configured to be driven by the electric power received by the power receiving coil.

Abstract: An electric blower includes: an electric motor portion including a rotation shaft; a centrifugal impeller; and a heat dissipating portion connecting the centrifugal impeller and the rotation shaft. A boss portion of the centrifugal impeller is provided with a first hole extending in an extending direction of the rotation shaft. The heat dissipating portion includes a first portion connected to an inner circumferential surface of the first hole, and a second portion connected to the first portion in the extending direction and located outside the first hole. A length of the heat dissipating portion in the extending direction is longer than a length of the first hole in the extending direction.

Abstract: An air blowing device and an air blowing system reduces a region where a person cannot be recognized in a space provided with the air blower, and achieves control of the air blower in view of a person in a larger range in the space. The air blower includes: a first sensor configured to detect a position of a human in a first human detection range; a receiver configured to receive a detection result of a second sensor transmitted from a transmitter of a sensor-mounted device, the sensor-mounted device including the second sensor configured to detect a position of a human in a second human detection range; and a controller configured to perform air blowing control when the first sensor does not detect a human in the first human detection range and the second sensor detects a human in the second human detection range.

Abstract: A cooker includes a top plate provided with a plurality of cooking zones on any of which a heating object is to be placed, a plurality of heaters each provided to a corresponding one of the plurality of cooking zones, a housing provided below the top plate and accommodating the plurality of heaters, a storage defined by a partition and provided in the housing, a door configured to cover an opening provided at the housing and communicating with the storage, and a storage case attached to the door and stored in the storage. A center of gravity of the cooker is positioned closer to a width-direction center of the housing than a width-direction end of the housing.

Abstract: A cooker includes a heating coil, a housing accommodating the heating coil, a top plate provided on the housing, a partition defining a storage in the housing and below the heating coil and including a first partition extending parallel to the top plate and a second partition extending perpendicularly to the first partition, a first facing wall facing the first partition with a gap defined between the first facing wall and the first partition, a second facing wall facing the second partition with a gap defined between the second facing wall and the second partition, a heat-insulating layer provided between the first partition and the first facing wall, and a heat-insulating layer provided between the second partition and the second facing wall, the heat-insulating layers being each made of a substance having a lower thermal conductivity than one of the first facing wall and the second facing wall.

Abstract: An induction heating cooking apparatus capable of performing wireless communication with an external apparatus includes a heating unit that inductively heats an object to be heated and a driving circuit that outputs electric power to the heating unit. Electric power output from the driving circuit during a period of time in which the wireless communication with the external apparatus is performed is less than electric power output from the driving circuit during a period of time in which the wireless communication with the external apparatus is not performed.

Abstract: A cleaner head for a vacuum cleaner includes: a body having a proximal end and a distal end; an agitator, an axis of rotation R1 of the agitator being substantially parallel to a longitudinal direction of the body; a motor configured to cause the agitator to rotate; and a joint configured to turnably connect a suction pipe to the body. The joint is positioned closer to the proximal end than to the distal end. The body includes a second suction channel configured to communicate with a first suction channel inside the joint, and a bulkhead configured to separate an agitator chamber and the second suction channel from each other. The second suction channel extends substantially parallel to the axis of rotation of the agitator. The bulkhead includes at least one air vent from the agitator chamber to the second suction channel.

Abstract: A heating cooker system includes a first coil configured to produce a first high-frequency magnetic field by receiving supply of a first high-frequency current, a first inverter circuit configured to supply the first high-frequency current to the first coil, a first heating element positioned in reach of the first high-frequency magnetic field produced by the first coil to be inductively heated by the first coil, a second coil configured to produce a second high-frequency magnetic field by receiving supply of a second high-frequency current, a second inverter circuit configured to supply the second high-frequency current to the second coil, a power receiving coil positioned in reach of the second high-frequency magnetic field produced by the second coil to receive electric power from the second coil, and a second heating element configured to generate heat by the electric power received by the power receiving coil.

Abstract: An air purifying operation is performed with a consideration for an influence of a purifying material on a person, and user's comfort and efficiency of the air purifying operation are both achieved. An air purifier includes a casing, an inlet, outlets, blowers, a decontamination unit, air ducts, movable louvers, a horizontal rotation mechanism, an ozone generation mechanism, human detection means, a control unit, or the like. The control unit detects whether or not there is a person in a room by the human detection means. Then, the control unit controls at least one of parameters including an ozone generation amount, a wind direction, an amount, and a speed of blown-out air based on the human detection result. Thus, if there is a person in the room, for example, a human avoiding operation, a human area operation, or the like can be performed. If there is no person, an indoor air purifying operation for uniformly purifying air throughout the room can be performed.

Abstract: There is provided an electric vacuum cleaner capable of further cleaning up air discharged from a whirling chamber which swirls air to separate dust from the air by inertial force, as well as capable of downsizing the electric vacuum cleaner's body. To this end, the electric vacuum cleaner includes: a whirling chamber configured to swirl air containing dust around a central axis to separate dust from the air containing dust, the whirling chamber having a discharge port for discharging air in the whirling chamber; a discharge pipe provided in the whirling chamber along the central axis, the discharge pipe communicating with the discharge port; and a filter provided on a downstream side of the discharge port. The filter is positioned outside of the discharge pipe on a projection plane perpendicular to the central axis.

Abstract: A centrifugal impeller high in efficiency and suction power, an electric blower having the centrifugal impeller, and an electrical apparatus provided with the electric blower are obtained. The centrifugal impeller includes a hub and a plurality of rotor blades. The plurality of rotor blades are coupled to a surface portion of the hub. At least one of the plurality of rotor blades includes an end portion, a first surface, and a second surface. The end portion includes a planar portion and a curved portion. The planar portion is continuous to the second surface and has a flat surface. The curved portion connects the planar portion and the first surface to each other and has a curved surface.

Abstract: A stator includes a first split core having a first yoke part extending in a circumferential direction about an axis line and a first tooth extending from the first yoke part toward the axis line, a second split core having a second yoke part extending in the circumferential direction and a second tooth extending from the second yoke part toward the axis line, a first insulator arranged to surround the first tooth and having a first holding part located between a tip end part of the first tooth and a tip end part of the second tooth, a second insulator arranged to surround the second tooth and having a second holding part located between the tip end part of the first tooth and the tip end part of the second tooth, and a Hall effect sensor held by the first holding part and the second holding part.

Abstract: A dehumidifier includes: a housing; a refrigerant circuit configured to allow low GWP refrigerant to circulate therethrough, the refrigerant circuit including a compressor having a variable operating frequency, a condenser, a pressure reducing device, and an evaporator, which are provided in the housing, the low GWP refrigerant being flammable and having a value of GWP of 6 or less; a blowing fan, which is provided in the housing, and is configured to take in air in a room into the housing and cause the taken-in air to pass through the evaporator and the condenser before blowing out the air from the housing into the room; and a water storage tank, which is provided below the evaporator, and is configured to accumulate dew condensation water generated in the evaporator, a number of refrigerant paths passing through the evaporator being greater than a number of refrigerant paths passing through the condenser.

Abstract: A wireless power transmission apparatus according to the present invention includes a coil which generates a high-frequency magnetic field upon reception of a high-frequency current, a support which supports the power receiving device within the high-frequency magnetic field, an inverter circuit which supplies the high-frequency current to the coil, and a controller which controls the driving of the inverter circuit. The controller performs a power transmission operation to transmit power to the power receiving device, if the impedance on the output side of the inverter circuit exhibits a resonant characteristic as the driving frequency of the inverter circuit is changed.

Abstract: A power control system includes an activity measurement apparatus configured to measure an amount of activity, a healthcare instrument configured to measure metabolic data, and a power instruction apparatus including a healthcare processing unit configured to acquire these pieces of measurement data. The power instruction apparatus includes an environment detection unit configured to detect ambient environment of each of the activity measurement apparatus and the healthcare instrument.

Abstract: When an inverter circuit is driven with a predetermined driving frequency, an amount of current change of an input current or a coil current in a set period is detected, and high frequency power to be supplied from the inverter circuit to a heating coil is adjusted in accordance with the amount of current change.

Abstract: A motor includes a frame including a first bearing holder, a stator, a first bearing held in the first bearing holder, a rotor rotatably supported by the first bearing, and a preload member generating a preload in a direction of an axis line of the rotor. The frame further includes a first frame part. The first frame part includes a support part supporting the preload member. An outer end part of the preload member faces the support part so as to be covered with the support part.