Mitsubishi Electric Corporation

Fujitsu Frontech Limited

Tdk Corporation

Mitsubushi Electric Corporation

Makoto Kurihara

Masahiko Takagi

Takashi Ikeda

Koji Yamaguchi

Takuya Teramoto

Kazuki Isomura

Takahide Tadokoro

Tomoya Fukui

Hiroki Fukuoka

Susumu Fujiwara

Atsushi Kono

Kosuke Sato

Kenyu Tanaka

Makoto Tanishima

Masaru Wasaki

Yoshitaka Uno

Kiyoshi Yoshimura

Yasuhiro Morimoto

Masatomo Hatta

Masahiro Kamijo

Kohei Tsunetomo

Ryutaro Asano

Mitugu Shibasaki

Katsuyuki Hiroki

Masahiko Kibe

Yuhei Umekage

Atsushi Kimata

Keisuke Takeishi

Ryotaro Takamura

Seiichi Ohki

Keita Ishiguro

Hiroyuki Yuze

An air conditioner performs air conditioning control according to settings. The air conditioner collects, from each of communication terminals, setting history information based on a history of a setting selected from among the settings by a user of a respective one of the communication terminals. The air conditioner performs air conditioning control corresponding to any of the settings based on the setting history information which is collected.

Air conditioner, control method, and non- transitory computer-readable storage medium

In a turbofan, a first curve, formed by projecting a leading edge onto a plane perpendicular to a rotating shaft, has a first inflection point and has a portion that is convex at a point closer to the first inflection point than the first point is in a counter-rotational direction and a portion that is convex at a point closer to the second point than the first inflection point is in the rotational direction, the first point is located forward of the second point in the rotational direction, a second curve, formed by projecting the trailing edge onto a plane perpendicular to the rotating shaft, follows an arc centered on the rotating shaft in a top view, a third curve, formed by projecting the trailing edge onto a cylindrical plane coaxial with the rotating shaft, is formed so as to be convex in the rotational direction, and a junction point of the third curve and the shroud is located behind the junction point of the third curve and the main plate in the rotational direction.

Turbofan and air-conditioning apparatus

An air-conditioning apparatus includes: a communication unit, a sensor, and a controller. The communication unit receives a radio signal from a portable terminal The sensor detects detailed information including information indicating presence or absence of a person in a detection target region that is a target region for detection of whether a person is present or not. The controller causes, when the communication unit receives a radio signal having a radio field intensity higher than or equal to a predetermined radio field intensity and a detection process by the sensor to detect the detailed information is in a stopped state, the sensor to start the detection process to detect the detailed information and control an air-conditioning operation based on the detailed information detected by the sensor.

Air-conditioning apparatus

An air-conditioning apparatus includes an air inlet through which air is suctioned; a fan configured to generate an air flow by suctioning the air from the air inlet; an electrical component box having a box body housing a control board configured to control an actuator provided in a main body, a lid that covers an opening of the box body, and a flange part positioned in a flow path of the air flow, the flange part being for fastening the lid to the box body; and a flow straightening part that covers the flange part.

A printing system includes a printing device including a thermal head that prints print content on a print medium; and an information processing apparatus that controls the printing device. The information processing apparatus comprises a processor configured to detect, from print image data from a server, a position of a control target portion including a specific portion in a print image corresponding to the print image data. The processor is configured to generate printing control information for printing the control target portion. The processor is configured to transmit the print image data, the position of the control target portion, and the printing control information to the printing device. The printing device executes different printing controls for the control target portion and a portion other than the control target portion based on the print image data, the position of the control target portion, and the printing control information.

Printing system, printing control method, information processing apparatus, and non-transitory computer-readable recording medium

A centrifugal fan includes a main plate, a blade connected to the main plate, and a shroud having an annular shape and connected to a shroud-side end of the blade that is an end opposite a main-plate-side end of the blade connected to the main plate. The centrifugal fan rotates about a rotation axis to suction a fluid through an opening of the shroud and discharge the fluid through the blade in a radial direction. A leading edge of the blade includes a recess located next to a point at which a shroud inner surface of the shroud that faces the main plate is connected to the leading edge and curving inwardly from the point toward a trailing edge and a projection located closer to the main plate than is the recess and projecting in the rotation direction.

Centrifugal fan and air-conditioning apparatus

An indoor unit for an air-conditioning apparatus includes an air-sending unit configured to send air subjected to heat exchange with refrigerant to an air-conditioning target space through an air outlet, the air-conditioning target space being divided into a plurality of areas, an up-and-down airflow direction adjuster configured to adjust an angle in an up-and-down direction of a blowing direction of the air sent through the air outlet, a right-and-left airflow direction adjuster configured to adjust an angle in a right-and-left direction of the blowing direction of the air sent through the air outlet, and a controller configured to control the angle of the up-and-down airflow direction adjuster and the angle of the right-and-left airflow direction adjuster. The controller is configured to control the up-and-down airflow direction adjuster and the right-and-left airflow direction adjuster to continuously change the angle in the up-and-down direction and the angle in the right-and-left direction.

Indoor unit for air-conditioning apparatus

An air-conditioning apparatus includes; an air temperature detection unit configured to detect air temperature in an air-conditioned space; a human body detection unit configured to detect human bodies in the air-conditioned space; an estimation unit configured to estimate thermal sensation of persons detected by the human body detection unit; and a control unit configured to correct a value of the air temperature or set temperature based on the thermal sensation of all of the detected persons estimated by the estimation unit, and to control a refrigeration cycle by using the corrected value.

An indoor unit of an air-conditioning apparatus includes a main body including a main board that is provided with a control terminal compatible with a plurality of expansion units. The main board is connected to an expansion board provided with at least one expansion terminal that is a connection terminal compliant with the same standard as the control terminal, and is connected to at least one of the plurality of expansion units via the expansion board.

Indoor system and indoor unit of air-conditioning apparatus

An air-conditioning apparatus includes a housing having an air inlet and an air outlet, a fan disposed in the housing, and a bell mouth through which a fluid flowing from the air inlet to the air outlet passes in association with rotation of the fan. The bell mouth includes curved part having a curved sectional shape in a fluid flow direction and a vibration-damping element disposed on at least one of a front surface and a rear surface of the curved part. The vibration-damping element is disposed at a position corresponding to a node of vibration of the bell mouth.

Provided is a turbofan producing reduced noise and easily manufactured. A coupling portion between a blade main portion and a blade cover is formed in a surface region (pressure surface) parallel to a direction of air flowing over the pressure surface of each blade. With this configuration, the air sucked from a direction of a rotation axis of a turbofan is less liable to enter a gap of the coupling portion of the blade, thereby being capable of reducing noise. Further, noise is reduced so that high-precision dimensional control of the gap of the coupling portion of the blade is not required. Consequently, dimensional control at the time of manufacture is facilitated to thereby facilitate manufacture.

Body air outletsof an air-conditioning-apparatus indoor uniteach has a substantially trapezoidal shape in plan view and are each defined by a body-air-outlet outer side wall, a body-air-outlet inner side wall, and a pair of body-air-outlet end walls. The body-air-outlet outer side wallis provided with a deflection guideat each of long-side ends thereof. The body-air-outlet end wallsare each provided with a sloping guide. The deflection guidehas a deflection-guide upper surfacethat gradually projects toward the body-air-outlet inner side wallin a direction toward a body open face(toward a downstream side) and in a direction toward the central part of the body air outlet. The sloping guidehas a sloping-guide upper surfacethat gradually projects toward the central part of the body air outletas the sloping guideextends closer to the body open face(toward the downstream side).

Air-conditioning-apparatus indoor unit

A fan of the invention includes an impeller having a plurality of blades and rotating around a rotation axis, and at least one balance weight having at least one claw portion and attached to the impeller to correct the center of gravity of the impeller. The impeller has a circumferential convex portion formed along the circumferential direction, and on which the claw portion is hooked to restrict a range of movement of the balance weight in the radial direction of the impeller, and at least one radial concave-convex portion formed along the radial direction, and on which the claw portion is hooked to restrict the range of movement of the balance weight in the circumferential direction of the impeller.

Fan and air-conditioning apparatus

A fan according to the present invention includes: a main plate fixed to a rotation axis of a driving device; a shroud including an air inlet; and an impeller including n blades between the main plate and the shroud, tip ends of leading edges of the respective blades arranged along a circle around the rotation axis, wherein all of the attachment pitch angles &#x3b1; are different angles, and the blades are arranged so that, in the attachment pitch angles &#x3b1;, attachment pitch angles on both sides of an attachment pitch angle &#x3b1;are a combination of other than an attachment pitch angle &#x3b1;, which is the next smallest angle in order of magnitude of angle to the attachment pitch angle &#x3b1;, and an attachment pitch angle &#x3b1;, which is the next largest angle in order of magnitude of angle, to the attachment pitch angle &#x3b1;.

Fan and air-conditioning apparatus using the same

A centrifugal fanincludes a main plate, a shroud, and a plurality of bladesprovided between the main plateand the shroud. The bladeincludes abutting surfaces, andthat respectively abut on abutted surfaces, and another abutted surface formed on at least one of the main plateand the shroud. The abutting surfaces, andincludes projections, andformed thereon, respectively, and extending in a straight or curved line. The abutting surfaces, andand the abutted surfaces, and the other abutted surface are respectively welded to each other by laser beamsandrespectively directed onto and moved along the projectionand the projectionsand

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Tokyo, Japan

Makoto Kurihara