A heat exchanger includes: at least two plate bodies and a collecting tube, wherein the plate bodies are provided with a plurality of micro-channels, each plate body includes a body part and a connecting part, one end of the connecting part is connected to the body part, and the body parts of the at least two plate bodies are stacked on each other; a wall of the collecting tube is provided with at least two connecting holes; and a first spacing is provided between two adjacent connecting holes of the at least two connecting holes, a second spacing is provided between the body parts of two adjacent plate bodies of the at least two plate bodies, and the first spacing is greater than the second spacing.

A heat exchanger includes: at least two plate bodies and a collecting tube, wherein the plate bodies are provided with a plurality of micro-channels, each plate body includes a body part and a connecting part, one end of the connecting part is connected to the body part, and the body parts of the at least two plate bodies are stacked on each other; a wall of the collecting tube is provided with at least two connecting holes; and a first spacing is provided between two adjacent connecting holes of the at least two connecting holes, a second spacing is provided between the body parts of two adjacent plate bodies of the at least two plate bodies, and the first spacing is greater than the second spacing.

A heat exchanger includes a fin set formed by a plurality of fins stacked together and a refrigerant pipe set passing through the fin set. The fin set includes a connection member, and a first fin member and a second fin member connected to each other via the connection member. An included angle between the first fin member and the second fin member is larger than zero. The first fin member and the second fin member are arranged at two sides, respectively, of a notch of the fin set. The notch is located at an air input side and/or an air output side of the connection member.

A heat exchanger includes a fin set formed by a plurality of fins stacked together and a refrigerant pipe set passing through the fin set. The fin set includes a connection member, and a first fin member and a second fin member connected to each other via the connection member. An included angle between the first fin member and the second fin member is larger than zero. The first fin member and the second fin member are arranged at two sides, respectively, of a notch of the fin set. The notch is located at an air input side and/or an air output side of the connection member.

The invention relates to a heat exchanger with inter-connecting cells in a row or block which evenly distribute and transfer heat to a fluid within a cell. Voids between rows or blocks of cells and the heat transfer medium comprise additional means of transferring heat from a heat-transfer medium to the fluid within the cells. The heat exchanger may be used but not limited to applications such as a condenser in an air conditioning unit, a wall heater or an indirect evaporative cooler.

The invention relates to a heat exchanger with inter-connecting cells in a row or block which evenly distribute and transfer heat to a fluid within a cell. Voids between rows or blocks of cells and the heat transfer medium comprise additional means of transferring heat from a heat-transfer medium to the fluid within the cells. The heat exchanger may be used but not limited to applications such as a condenser in an air conditioning unit, a wall heater or an indirect evaporative cooler.

An air handling unit has a blower assembly, a first interior zone, and a second interior zone and the blower assembly physically separates the first interior zone from the second interior zone. A method includes providing a cabinet configured to receive a blower assembly, inserting a blower assembly into the air duct, and closing a cabinet door of the cabinet, wherein upon closing the cabinet door, the primary air flow path from a location within the cabinet downstream of the blower assembly to a location within the cabinet upstream of the blower assembly is through a blower housing of the blower assembly. A blower assembly has a blower housing comprising at least one air inlet and at least one air outlet and a blower deck extending from the outlet, wherein the blower deck comprises at least one substantially flat component having a substantially orthogonal wall extending from the flat component.

A ceiling-embedded air conditioner includes: a ceiling-embedded casing body that has an air suction path at the center of a lower surface and has an air blowoff path around the air suction path; a turbo fan that is disposed inside the casing body; a heat exchanger that is disposed inside the casing body on an outer peripheral side of the turbo fan; a bell-mouth that guides air sucked from the air suction path toward the inside of the turbo fan; and a rectifier that is provided on a back surface side of the bell-mouth at the air suction path side opposite to an air suction surface of the bell-mouth, the rectifier suppressing swirling airflows generated by part of air blown from the turbo fan swirling along the back surface of the bell-mouth in the same direction as a rotation direction of the turbo fan.

An air-conditioning indoor unit includes: a casing disposed indoors; a fan disposed inside the casing; a heat exchanger disposed inside the casing and that includes a plurality of flat multi-perforated pipes arranged side by side and one above another; and a drain pan disposed below the heat exchanger. The heat exchanger includes an upper heat-exchange area and a lower heat-exchange area. When the heat exchanger is used as a condenser, a subcooling area subcools a refrigerant flowing in an interior of the heat exchanger. The subcooling area includes one or more of the flat multi-perforated pipes disposed in the lower heat-exchange area. The drain pan includes: a bottom portion that is disposed below the heat exchanger; and a wall that stands on the bottom portion and that is disposed on a downwind side of the heat exchanger.

An air conditioning and heat pump tower includes a main casing, a plurality of connecting pipes, a compressor, a front heat exchanger, a rear heat exchanger, a fan unit, and an energy efficient arrangement. The energy efficient arrangement includes a first pre-heating heat exchanger supported in a front compartment of the main casing, and positioned between an outdoor air intake opening and an outdoor heat exchanging portion of the front heat exchanger. The air conditioning and heat pump tower may be operated between an air conditioning mode for absorbing heat from the indoor space, and a heat pump mode for producing heat to the indoor space. A predetermined amount of ambient air may be drawn through the outdoor air intake opening and may be pre-heated by the energy efficient arrangement before delivering to the indoor space.