Abstract: An outdoor unit control unit includes a degree-of-dryness calculating unit that calculates the degree of dryness of a refrigerant flowing into an heat exchanger (an indoor heat exchanger at the time of a cooling operation, and an outdoor heat exchanger at the time of a heating operation) disposed on the downstream side of a liquid pipe, and performs an inhibition mode of inhibiting, when the degree of dryness exceeds a threshold A, control that is performed in the direction of decreasing the degree of opening of the expansion valve (an indoor expansion valve at the time of the cooling operation, and an outdoor expansion valve at the time of the heating operation) disposed on the upstream side of the liquid pipe.

Abstract: A heat exchanger includes a plurality of flat heat transfer tubes and a header, wherein each of the flat heat transfer tubes internally includes a plurality of windward channels and a plurality of leeward channels that are arranged on a leeward side of the windward channels, the header includes a main body unit having an internal space that is connected to the windward channels and the leeward channels, a partition member that separates the internal space into a windward side space at a side of ends of the windward channels and a leeward side space at a side of ends of the leeward channels, and an inflow portion that supplies a refrigerant to the lower portion of the leeward side space, and an upper side communication path that allows communication between the leeward side space and the windward side space is formed in an upper portion of the partition member.

Abstract: A rotary compressor includes a compressor housing that is provided with a refrigerant discharge portion and refrigerant suction portions, a compression unit that is arranged in the compressor housing and compresses a refrigerant, sucked from the suction portions, and discharges it from the discharge portion, a motor that is arranged in the compressor housing and drives the compression unit, an accumulator that is connected to the suction portions, and a mounting member that secures the accumulator to the compressor housing. The compressor housing and an accumulator container of the accumulator are made of a metal material. The mounting member is at least partially made of a resin material and has a first joint portion, which is joined to an outer peripheral surface of the compressor housing.

Abstract: An electrical component module includes: a control unit that controls an air conditioner; a fixed plate on which the control unit is mounted, the fixed plate being arranged to have a front surface facing a direction toward a service panel; a cooler that is attached to a part of a refrigerant pipe with the refrigerant pipe arranged between the cooler and a back surface of the fixed plate; a first frame attached to one end portion of the fixed plate; and a second frame attached to another end portion of the fixed plate. The control unit includes a printed circuit board on which a power device is mounted. The power device is thermally coupled with the cooler. The cooler is attached to bridge between the first frame and the second frame.

Abstract: A non-transitory computer-readable storage medium storing a selection program that causes at least one computer to execute a process, the process includes receiving identification information regarding a terminal from the terminal; selecting one or more user state transition patterns, a number of which is according to the identification information, from among a plurality of the user state transition patterns, which are a plurality of patterns of user state transition obtained by clustering information that indicates the user state transition, which is a time-series transition of a state of a user during a predetermined unit time; and transmitting the one or more user state transition patterns to the terminal.

Abstract: An air conditioner includes a human detection sensor that detects whether a human is present in an air conditioning space and a presence/non-presence predictor that predicts whether a human will be present in the air conditioning space. The air conditioner further includes a controller that, using results of detection by the human detection sensor and results of prediction by the presence/non-presence predictor, makes a switch from an air conditioning operation to a power-saving operation of which power consumption is smaller than that of the air conditioning operation. As a result, it is possible to realize an appropriate power-saving operation.

Abstract: To enable easy access and lead wire routing during maintenance, without causing ventilation hindrance. An electrical component box 14 is provided on the side of the outer surface of a lateral plate 113 of an outer shell 11 of a body unit, and a cable storage part 15 for storing a drawing section of a lead wire 143 drawn from the electrical component box 14 and guiding the drawing section in a predetermined direction is disposed on the side of the inner surface of the lateral plate 11.

Abstract: A compressor includes a rotor that is fixed to a shaft, a stator that rotates the rotor about an axis of rotation, and a compressor part that compresses a refrigerant by the shaft rotating, wherein the rotor has a rotor core in which a refrigerant hole is formed, a first magnet that is embedded in the rotor core, and a second magnet that is embedded in the rotor core, an interior wall surface of the refrigerant hole includes a first portion that is formed on a side close to the first magnet, a second portion that is formed on a side close to the second magnet, and a magnet-side intermediate interior wall surface portion that is formed between the first portion and the second portion, and the magnet-side intermediate interior wall surface portion is closer to the axis of rotation than the first portion and the second portion.

Abstract: An air conditioner according to an embodiment of the present invention includes: a refrigerant circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, and a pressure reducer that is disposed between the outdoor heat exchanger and the indoor heat exchanger; an outdoor fan that blows the air to the outdoor heat exchanger; an indoor fan that blows the air to the indoor heat exchanger; and a control device that sets an upper limit value of a rotational frequency of the outdoor fan in accordance with a rotational frequency of the indoor fan.

Abstract: An air conditioner according to an embodiment of the present invention includes: a refrigerant circuit including a compressor, an outdoor heat exchanger, an indoor heat exchanger, a pressure reducer that is disposed between the outdoor heat exchanger and the indoor heat exchanger, and a flow channel switching unit that switches a flow direction of a refrigerant discharged from the compressor; an outdoor fan that blows the air to the outdoor heat exchanger; and a control device that sets an instructed rotational frequency which is a rotational frequency for driving the outdoor fan. The control device performs processing of stopping the outdoor fan while gradually reducing the instructed rotational frequency in a case where it is determined that a predetermined defrosting start condition is satisfied during a heating operation.

Abstract: There is provided an air conditioner with sufficient thermal insulation performance without affecting the installation property in installing an air conditioner in a casing. The air conditioner includes an indoor unit having an indoor heat exchanger, an outdoor unit having an outdoor heat exchanger connected to the indoor heat exchanger through a refrigerant pipe, and an outside casing housing at least the outdoor unit and is attached to a building wall that partitions an outdoor space and an indoor space. The outside casing is fitted in a wall communication hole and has an inside space in which the outdoor unit is capable of being disposed, the wall communication hole being formed in the building wall and communicating between the outdoor space and the indoor space. The inside space is opened to the outdoor space. The outdoor unit is disposed in the inside space of the outside casing.

Abstract: An air conditioner includes an outdoor unit, an indoor unit and a refrigerant circuit. The conditioner performs heating operation in which an indoor heat exchanger functions as a condenser for a refrigerant that is compressed by a compressor and an outdoor heat exchanger functions as an evaporator for a refrigerant that is condensed by the indoor heat exchanger. The conditioner includes a memory, and processing circuitry configured to estimate an amount of refrigerant that remains in the circuit by using an operating state quantity of the conditioner in the heating operation. The estimating includes a plurality of different estimation models that correspond to ranges of the amount of refrigerant that remains in the circuit. One of the estimation models uses, as the operating state quantity, a degree of supercooling of refrigerant at an outlet of the indoor heat exchanger.

Abstract: A control method for causing a computer to perform a process includes: obtaining a trained model for each area of a plurality of areas; detecting a first radiation temperature for each of the areas; blowing blowout air to an area where temperature unevenness is predicted among the plurality of areas on a basis of the detected first radiation temperature for each of the areas and the trained model; detecting a second radiation temperature for the area after the blowout air is blown; and executing re-training of the trained model on a basis of a label related to temperature unevenness created on a basis of the second radiation temperature and the second radiation temperature.

Abstract: A motor includes: a rotor, a stator; and a cylindrical insulator fixed to an end portion of the stator. The stator includes a plurality of teeth, a plurality of winding wires each including a winding portion wound around each of the plurality of teeth, a neutral wire provided on one end side of the winding portion, and a power wire provided on the other end side of the winding portion, and a neutral point at which a plurality of neutral wires are electrically connected via a connecting member. The insulator is provided with a drawing notch penetrating from an outer side to an inner side of the insulator. The plurality of neutral wires are routed along an outer peripheral surface of the insulator, pass through the drawing notch, and are drawn from the outer side to the inner side of the insulator, and the plurality of neutral wires drawn are fixed.

Abstract: A hermetic type compressor includes: a compressor main-body container that has a vertically cylindrical shape, and that has a discharge pipe and a suction pipe for a refrigerant; an accumulator container that is connected to the suction pipe; a compression section that is disposed in the compressor main-body container, that compresses the refrigerant sucked from the accumulator container via the suction pipe, and that discharges the compressed refrigerant from the discharge pipe; and a motor that is disposed inside the compressor main-body container, and that drives the compression section. In the hermetic type compressor, the accumulator container includes a cup shape accumulator shell that has the opening side thereof bonded to the compressor main-body container.

Abstract: In a mode in which a blowing fan is disposed in an air blowing chamber surrounded by heat exchangers, air sucked from an air blowing opening is directed to each heat exchanger without bias. Even in a mode in which an air blower is disposed in an air blowing chamber which is formed between a first heat exchange part and a second heat exchange part disposed to face each other, and an air suction opening is disposed on the side of a second air suction chamber outside the second heat exchange part, an air guide path is formed from the air suction part to a first air suction chamber on the side of the first heat exchange part between the rear surface of the decorative panel and the bottom surface of the drain pan, so that the air sucked from the air blowing opening is directed to the first heat exchange part and the second heat exchange part without bias.

Abstract: A heat exchanger includes a first-row heat exchange module through which a refrigerant is introduced from the outside, a second-row heat exchange module through which the refrigerant is discharged to the outside, a third-row heat exchange module through which the refrigerant is discharged to the outside, and a flow-splitting module that splits the refrigerant from the first-row heat exchange module into the second-row heat exchange module and the third-row heat exchange module, wherein the refrigerant reciprocates one time in a flow path, the first-row heat exchange module constitutes a forward path of the flow path, and both the second-row heat exchange module and the third-row heat exchange module constitute backward paths of the flow path.

Abstract: A hermetic type compressor (1) includes a compressor main body container (10) that is a vertical type having a cylindrical shape, and that is provided with a discharge pipe (107) and a suction pipe (104) for a refrigerant, an accumulator container (25) that is connected to the suction pipe (104), a compression section (12) that is arranged inside the compressor main body container (10), that compresses the refrigerant, which has been sucked from the accumulator container (25) by way of the suction pipe (104), and that discharges the compressed refrigerant from the discharge pipe (107), and a motor (11) that is arranged inside the compressor main body container (10) and that drives the compression section (12). The accumulator container (25) includes an accumulator shell (26) having a cup shape, and in which an opening side (28b) of the accumulator shell (26) is bonded to the compressor main body container (10).