Abstract: A refrigerant flow path unit includes: a unit body that includes plates that are laminated together, and has an interior in which a refrigerant flow path is formed; a refrigerant pipe; and a first brazing filler metal that joins the unit body to the refrigerant pipe. The plates of the unit body include: a first plate that has a first opening and is disposed at an end of the unit body in a first direction in which the plates are laminated; and a second plate that has a second opening that communicates with the first opening and is disposed second from the end of the unit body in the first direction. The refrigerant pipe is inserted into the first opening and the second opening.

Abstract: A refrigerant flow path unit includes: a unit body that includes plates that are laminated together, and has an interior in which a refrigerant flow path is formed; a refrigerant pipe; and a first brazing filler metal that joins the unit body to the refrigerant pipe. The plates of the unit body include: a first plate that has a first opening and is disposed at an end of the unit body in a first direction in which the plates are laminated; and a second plate that has a second opening that communicates with the first opening and is disposed second from the end of the unit body in the first direction. The refrigerant pipe is inserted into the first opening and the second opening.

Abstract: An air conditioner includes: a casing including a bottom plate; a refrigerant flow path unit housed inside the casing, and having an interior in which a refrigerant flow path is formed; a compressor installed on the bottom plate; and a shutoff valve that opens and closes to allow and block a flow of a refrigerant. The refrigerant flow path unit is supported at a distance from the bottom plate by a fixed-side member other than the compressor. The fixed-side member includes either one of: a mounting plate to which the shutoff valve is fixed, or a support plate to which the mounting plate is fixed.

Abstract: A refrigeration apparatus includes: a refrigerant flow path unit that comprises plates stacked together, and in which a refrigerant flow path is disposed; first components that are functional components each including a driving unit; second components other than functional components; and a casing accommodating the refrigerant flow path unit, and the first and second components. The first components and the second components constitute a refrigerant circuit. The refrigerant flow path unit: has a first surface and a second surface on both sides in a normal direction of the plates, and is disposed in the casing in a posture with the first surface and the second surface being upstanding. The first components are connected to the first surface. The second components are connected to the second surface. The refrigerant flow path unit includes joint tubes that connect pipes linked to the second components.

Abstract: A refrigerant pipe unit includes: a first plate; a second plate stacked on the first plate; and a control valve. One or both of the first plate and the second plate include a refrigerant flow path. The control valve includes: a valve body that includes a refrigerant passage communicating with the refrigerant flow path, rotates in the first plate, and changes a flow of a refrigerant in the refrigerant flow path with an amount of rotation of the valve body; and a driver that adjusts the amount of the rotation of the valve body.

Abstract: An outdoor unit of a refrigeration apparatus includes: a fan that generates an upward flow of air passing through a heat exchanger; an electric component box that accommodates a group of electric components; and a casing that includes a panel disposed at a predetermined position opposite to the electric component box. The panel is divided into at least a first panel and a second panel in a lateral direction as viewed from a front view of the panel. The first panel is opposed to at least part of the electric component box. The first panel is detachable from the casing while the second panel remains attached to the casing.

Abstract: A plate-type refrigerant pipe includes: a first plate made of stainless steel; a second plate made of stainless steel; and a coupling pipe, made of a material that is different from stainless steel, attached to one or both of the first plate and the second plate. The first plate and the second plate are joined to form a refrigerant flow path. The coupling pipe is connected to a refrigerant pipe at a connecting surface of refrigerant pipe. The material of the coupling pipe is identical to a material of the connecting surface of the refrigerant pipe.

Abstract: A plate-type refrigerant pipe includes: a first plate; and a second plate. The first plate and the second plate are joined to form a refrigerant flow path. The first plate includes a first recessed groove that forms at least part of the refrigerant flow path and that has an arc shape in a cross section of the refrigerant flow path. A center of the arc shape of the first recessed groove is on a side of the first plate with respect to a joining surface where the first plate and the second plate are joined.

Abstract: A plate-type refrigerant pipe includes: a first plate; and a second plate. The first plate and the second plate are joined to form a refrigerant flow path. The first plate includes a first connection portion to which a first refrigerant pipe is connected and that causes the refrigerant flow path to communicate with the first refrigerant pipe. The second plate includes a second connection portion to which a second refrigerant pipe is connected and that causes the refrigerant flow path to communicate with the second refrigerant pipe. One or both of the first plate and the second plate include a third connection portion to which a third refrigerant pipe is connected and that causes the refrigerant flow path to communicate with the third refrigerant pipe.

Abstract: A heat source unit including: mounting feet; a bottom frame disposed on the mounting feet; vibration-proofing members that are disposed between the bottom frame and the mounting feet and space the bottom frame apart from the mounting feet; and a plurality of struts that extend upward from the mounting feet. All of the struts are anchored to the mounting feet without being anchored to the bottom frame.

Abstract: An outdoor unit for an air conditioner includes: a casing including a bottom plate that defines a bottom surface of the casing; a heat exchanger disposed in the casing; and an installation foot that supports the bottom plate from below. The installation foot includes: a support portion that supports from below an end portion of the bottom plate, a wall portion disposed on an outer side of the end portion of the bottom plate and that extends upward from the support portion, and a mount portion that extends from an upper end of the wall portion. The heat exchanger is mounted on the mount portion. The mount portion has a hole that extends through the mount portion in a height direction of the outdoor unit.

Abstract: A heat source unit includes: a corrugated plate-like bottom frame in which ridges and furrows extend across the front and rear direction or across the right and left direction; and mounting feet. The mounting feet include: supports that support, from below, the furrows of supported ends of the bottom frame on sides that the ridges and the furrows can be seen; and walls disposed on outer sides of the supported ends and that extend upward from the supports. Water drainage passages, that drain water sticking to tops of the ridges of the supported ends to the supports, are disposed above the supports.

Abstract: A heat source unit constitutes part of a basic refrigerant circuit including: a compressor that compresses refrigerant; an accumulator that temporarily accumulates the refrigerant before the refrigerant is sucked into the compressor; an oil separator that separates refrigerating machine oil from the refrigerant after the refrigerant has been discharged from the compressor; a heat source-side heat exchanger that functions as a radiator or an evaporator of the refrigerant; a liquid refrigerant communication pipe; utilization-side expansion valves; utilization-side heat exchangers; and a gas refrigerant communication pipe that are connected to one another, the heat source unit comprising refrigerant circuit constituent parts including the compressor, the accumulator, the oil separator, and the heat source-side heat exchanger that are provided inside a casing, and the refrigerant circuit constituent parts being changed or added in accordance with capacity or function.

Abstract: A heat source unit includes a compressor and an electrical component box both disposed inside a casing, where a bottom frame forming a bottom surface of the casing includes a first bottom frame on which the compressor is disposed and a second bottom frame that is adjacent to the first bottom frame. At least half of the electrical component box is placed above the second bottom frame.

Abstract: An outdoor unit for an air conditioner includes: a casing including a bottom plate that defines a bottom surface of the casing; a heat exchanger disposed in the casing; and an installation foot that supports the bottom plate from below. The installation foot includes: a support portion that supports from below an end portion of the bottom plate, a wall portion disposed on an outer side of the end portion of the bottom plate and that extends upward from the support portion, and a mount portion that extends from an upper end of the wall portion. The heat exchanger is mounted on the mount portion. The mount portion has a hole that extends through the mount portion in a height direction of the outdoor unit.

Abstract: A bottom frame (50) which constitutes a bottom surface of a casing (40) is divided into a main bottom frame (51) where a first compressor (11) is to be provided and a sub bottom frame (55) where a second compressor (21) is to be provided. The main bottom frame (51) is further divided into a first bottom frame (52) and a second bottom frame (53). The first compressor (11) is to be provided on the first bottom frame (52). A refrigerant circuit component (47) to be replaced or added in accordance with a capability or a function is to be provided on the second bottom frame (53).

Abstract: An outdoor unit for a refrigeration cycle apparatus includes: a fan; a bellmouth that covers a periphery of the fan; a casing that internally houses the fan and the bellmouth so that airflow faces upward and that has a top end edge having a flat shape; and a diffuser surface disposed below a top end edge of the casing but above a top end of the bellmouth and on the outer side relative to the top end of the bellmouth in plan view, wherein the diffuser surface is inclined to extend outward away from the rotation axis of the fan as getting upward. The casing has a plurality of side surfaces that cover the sides of the bellmouth. At least one of the side surfaces has a recessed shape toward the bellmouth so that a gap with the top end edge of the bellmouth is reduced.

Abstract: An outdoor unit of a refrigeration apparatus includes: a fan that generates an upward flow of air passing through a heat exchanger; an electric component box that accommodates a group of electric components; and a casing that includes a panel disposed at a predetermined position opposite to the electric component box. The panel is divided into at least a first panel and a second panel in a lateral direction as viewed from a front view of the panel. The first panel is opposed to at least part of the electric component box. The first panel is detachable from the casing while the second panel remains attached to the casing.

Abstract: A bottom frame (50) which constitutes a bottom surface of a casing (40) is divided into a main bottom frame (51) where a first compressor (11) is to be provided and a sub bottom frame (55) where a second compressor (21) is to be provided. The main bottom frame (51) is further divided into a first bottom frame (52) and a second bottom frame (53). The first compressor (11) is to be provided on the first bottom frame (52). A refrigerant circuit component (47) to be replaced or added in accordance with a capability or a function is to be provided on the second bottom frame (53).

Abstract: A heat source unit including: mounting feet; a bottom frame disposed on the mounting feet; vibration-proofing members that are disposed between the bottom frame and the mounting feet and space the bottom frame apart from the mounting feet; and a plurality of struts that extend upward from the mounting feet. All of the struts are anchored to the mounting feet without being anchored to the bottom frame.