Daikin Industries, Ltd.

Mikio Kagawa

Shigeki Kamitani

Fumiaki Koike

Junichi Shimoda

Kazuki Ikari

Szeping Beh

Eiji Kumakura

Kazuhiro Furusho

Atsushi Yoshimi

Hiromune Matsuoka

Takuro Yamada

Ikuhiro Iwata

Junya Minami

Kazuto Yamagata

Michio Moriwaki

Tomoatsu Minamida

Yuusuke Nakagawa

Yusuke Nakagawa

Tadashi Sao

Hiroshi Fuchikami

Tomohisa Takeuchi

Katsutoshi Sakurai

Bin Luo

A refrigerant flow path switching unit is disposed between a heat source unit and a utilization unit and switches a refrigerant flow in the utilization unit. The refrigerant flow path switching unit includes: a flow path switching valve; and a case that houses the flow path switching valve. The case has: a first maintenance opening on a first side surface; and a second maintenance opening on a second side surface.

Refrigerant flow path switching unit and air conditioner provided with the same

A refrigerant cycle system includes: a first refrigerant circuit that includes a first heat exchanger, a first compressor, and a first cascade heat exchanger and that is configured as a first vapor compression refrigeration cycle; a second refrigerant circuit that includes the first cascade heat exchanger, a second compressor, and a second heat exchanger and that is configured as a second vapor compression refrigeration cycle; a first unit that accommodates the first heat exchanger and the first compressor; a second unit that accommodates the first cascade heat exchanger and the second compressor; and a third unit that accommodates the second heat exchanger. The first unit, the second unit, and the third unit are disposed apart from each other. The first cascade heat exchanger performs heat exchange between a first refrigerant that flows through the first refrigerant circuit and a second refrigerant that flows through the second refrigerant circuit.

Refrigerant cycle system

An air conditioner includes: a casing; a partition plate in the casing that separates a heat-source-side space of the casing through which outdoor air passes and a utilization-side space of the casing through which indoor air passes and blocks air flow between the heat-source-side space and the utilization-side space; a heat-source-side heat exchanger in the heat-source-side space that causes heat exchange between a refrigerant and the outdoor air; a utilization-side heat exchanger in the utilization-side space that causes heat exchange between the indoor air and the heat-exchanged refrigerant; a duct that extends from the utilization-side space to an indoor air conditioning target space; and a refrigerant leakage sensor in the utilization-side space that detects leaked refrigerant in the utilization-side space.

Air conditioner

A refrigerant flow path switching unit, disposed between a heat source unit and a utilization unit and that switches a refrigerant flow in the utilization unit, includes: a flow path switching valve; a case that houses the flow path switching valve; and an electric component box that houses an electric component that controls the flow path switching valve. At least two surfaces of the case include a box attachment part that is configured to attach the electric component box to the case.

Refrigerant flow path switching unit and air conditioner including the same

An outdoor unit of an air conditioning device includes an outdoor unit main body having a square planar shape, a heat exchanger provided along a side surface of this outdoor unit main body, and a fan provided in an upper part of the outdoor unit main body, the fan for blowing out air in the outdoor unit main body upward. An opening portion capable of providing communication between an interior and an exterior of the outdoor unit main body is formed between a one side end portion and an other side end portion of the heat exchanger adjacent to each other, and in at least one of the side end portions positioned in a peripheral edge of the opening portion, a cover member for covering a heat transfer tube protruding from the side end portion is provided.

Outdoor unit of air conditioning device

An outdoor unit capable of promptly discharging dew condensation water dropped from a heat exchanger to an exterior is provided. A drainage port is formed in a bottom frame of an outdoor unit below a heat exchanger. A base leg of the bottom frame is formed to have a U shape section by upper plates abutted with a lower surface of the bottom frame, lower plates fixed to an installment surface, and standing plates connecting the upper plates and the lower plates, and further includes a first part and a second part with respect to the longitudinal direction. The first part is formed to have a U shape section opening outward in the horizontal direction with the lower plate thereof being fixed to the installment surface. The second part is provided at least at a position corresponding to the drainage port with respect to the longitudinal direction of the base leg, and formed to have a U shape section opening inward in the horizontal direction, the second part having a structure where the upper plate thereof avoids a lower region of the drainage port.

Condensation removal in an outdoor unit of an air conditioning device

An outdoor unit of an air conditioning device in which a compressor, a heat exchanger, and a fan are accommodated in a casing including a top plate, side plates, and a bottom plate is provided. The top plate is formed in a rectangular shape, and a flat mount surface is formed in each of corner portions of the top plate. Regarding each of sides of the top plate, an intermediate part excluding the corner portions serves as a retreat portion set back to the side of the device, and an end of the retreat portion and the mount surface are connected by a standing surface.

In an outdoor unit, an electric component unit includes an inlet part which communicates with an outlet side of an air blower and through which air on the outlet side flows into the electric component unit, and an outlet part which communicates with an inlet side of the air blower and through which air flows out from the electric component unit.

Outdoor unit of refrigerating apparatus

An outdoor unit for an air conditioning device includes an outdoor unit main body, a heat exchanger, a fan provided in an upper part of the outdoor unit main body, the fan blowing out the air taken in from a side surface of the outdoor unit main body upward, a ventilating member surrounding an outer circumference of the fan and forming a blow-out port, and an electric component unit accommodated in the outdoor unit main body and arranged in an opening portion between one side end portion and the other side end portion of the heat exchanger, wherein the electric component unit is provided so as to cross over a lower end of the ventilating member in the up and down direction, and on the upper side than the lower end of the ventilating member, the electric component unit is arranged on the horizontally outer side than the ventilating member.

Outdoor unit for air conditioning device

A casing of an outdoor unit includes support pillars, each of the support pillars having standing wall portions arranged along the up and down direction, and a top plate mounted on upper ends of the support pillars. Substantially horizontal abutment portions extending upward from at least a part of the standing wall portions and being brought into surface contact with a lower surface of the top plate in a state where the top plate is floated up from upper ends of the standing wall portions are provided in the upper end of each of the support pillars.

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Sakai, Japan

Mikio Kagawa