The purpose of the invention is to reduce power consumption of heat exchangers (otherwise known as condensers or outdoor heat pump units) used for residential or building air conditioning and/or heating. The invention is a set of thin deflector(s) that attach to the top of the unit. The deflectors redirect air that the unit discharges vertically to a horizontal or slightly higher direction. This reduces recirculation of exhaust air to the intake when structural surfaces are close to the exchanger. Less recirculation reduces power consumption and thereby electric bills and allows the cooling and/or heating system to operate closer to capacity in ambient temperature extremes. It also could extend the life of the compressor's electrical insulation by allowing it to operate at lower temperature.

The purpose of the invention is to reduce power consumption of heat exchangers (otherwise known as condensers or outdoor heat pump units) used for residential or building air conditioning and/or heating. The invention is a set of thin deflector(s) that attach to the top of the unit. The deflectors redirect air that the unit discharges vertically to a horizontal or slightly higher direction. This reduces recirculation of exhaust air to the intake when structural surfaces are close to the exchanger. Less recirculation reduces power consumption and thereby electric bills and allows the cooling and/or heating system to operate closer to capacity in ambient temperature extremes. It also could extend the life of the compressor's electrical insulation by allowing it to operate at lower temperature.

An apparatus and a method for providing adequate cooling inside control box of an electrical equipment. A method includes receiving air from one or more air ducts in a first section wherein the first section is coupled with the one or more air ducts. The method also includes providing the air to a first fan associated with the first section and transferring the air by the first fan to one or more second fans. The method further includes receiving air from the one or more air ducts associated with the first section to one or more vents in the second section and transferring the air from one or more vents to the one or more louvers and the first fan. Air transferred to the one or more louvers and the first fan is further transferred to the one or more second fans.

An apparatus and a method for providing adequate cooling inside control box of an electrical equipment. A method includes receiving air from one or more air ducts in a first section wherein the first section is coupled with the one or more air ducts. The method also includes providing the air to a first fan associated with the first section and transferring the air by the first fan to one or more second fans. The method further includes receiving air from the one or more air ducts associated with the first section to one or more vents in the second section and transferring the air from one or more vents to the one or more louvers and the first fan. Air transferred to the one or more louvers and the first fan is further transferred to the one or more second fans.

A heat exchange unit for heat pumps or air conditioners includes a box-like casing, a lower surface, an upper surface which is opposite the lower surface and which is spaced apart therefrom with respect to an axis of the casing, and a front surface which extends between the lower surface and the upper surface, the surfaces being defined on the casing. The heat exchange unit also includes a first opening and a second opening which are made on the casing, a channel which extends inside the casing between the first and second openings, a fan which is housed inside the casing, along the channel, and which is provided to move an air flow away from and towards the external environment with respect to the casing through the openings, and a heat exchanger which is placed in the channel, at least a portion of the fan and the heat exchanger being one below the other with respect to the axis.

A heat exchange unit for heat pumps or air conditioners includes a box-like casing, a lower surface, an upper surface which is opposite the lower surface and which is spaced apart therefrom with respect to an axis of the casing, and a front surface which extends between the lower surface and the upper surface, the surfaces being defined on the casing. The heat exchange unit also includes a first opening and a second opening which are made on the casing, a channel which extends inside the casing between the first and second openings, a fan which is housed inside the casing, along the channel, and which is provided to move an air flow away from and towards the external environment with respect to the casing through the openings, and a heat exchanger which is placed in the channel, at least a portion of the fan and the heat exchanger being one below the other with respect to the axis.

A casing of a heat source unit for a refrigeration device is configured to allow air to flow from a machine chamber disposed at a lower portion of the casing to a heat exchange chamber disposed above the machine chamber. An electric component box is comprised of a bottom panel, a side panel which has a vent opening, a top panel, and a vent opening cover for covering the vent opening of the side panel. The vent opening cover is provided with a plurality of slits extending in the vertical direction at positions deviated from a portion opposed to the vent opening of the side panel.

A chiller unit, which is a heat source unit, includes devices, such as a compressor and an electric component box in a machine chamber in a lower portion thereof, and a heat exchanger in an air passage in an upper portion thereof. A drain pan is disposed under the heat exchanger, and a drain gutter is disposed under the outflow port of the drain pan. The drain gutter includes a main drain port at its end portion where the depth of the drain gutter is deepest, and a secondary drain port at its end portion where the depth of the drain gutter is shallowest. The drain gutter has a guide portion, the end of which protrudes to the outside of the casing.

A fan unit includes: a fan casing having a long side corresponding to either a width or a depth of the fan casing, a short side corresponding to the other of the width or the depth, and an upper surface on which a blow-out grille is mounted; a fan housed in the fan casing and that blows out air from the blow-out grille; and a bell mouth comprising a cylindrical portion surrounding the fan inside the fan casing. The cylindrical portion includes two first arc regions each facing the short side of the fan casing, a second arc region facing the long side of the fan casing, and a guide portion disposed in at least one of the first arc regions. The guide portion includes an extended end portion.

An outdoor unit for an air-conditioning apparatus is provided in which heat-exchanger units can be arranged such that a heat exchanger has a further increased capacity in a casing of a limited size while the volume of air to be fed to the heat exchanger is maximized. An outdoor unit for an air-conditioning apparatus includes a casing having a rectangular plan-view shape formed of a front portion, a left portion, and a rear portion; a heat exchanger provided in the casing and including a plurality of parts each having a rectangular plan-view shape; and a plurality of air-sending fans provided above a plurality of air inlet spaces, respectively, the air inlet spaces each being provided on an inner side of a corresponding one of the plurality of rectangular parts of the heat exchanger.