Mitsubishi Electric Corporation

Tetsuya Tazawa

Keisuke Tomomura

Hironobu Suehiro

Kouji Yamaguchi

Koji Yamaguchi

Takashi Ikeda

Hiroaki Makino

Tetsuo Yamashita

Kazuhito Kojima

Takaaki Takishita

Toshihiro Hotta

Yoshiyuki Nakagawa

Hiroshi Ohmura

Takuya Goto

Takahiro Komatsu

Shoji Yamada

Takeshi Kawamura

Naoya Matsunaga

Teruo Miyamoto

Mitsuhiro Shirota

Reiji Morioka

Katsuya Ishigami

Yasushi Oba

Den Ozaki

Koki Moro

Yoshie Nakaya

Yohei Kawahara

Masahiro Motooka

Yusaku Seki

Masatomo Hatta

Megumi Sawai

Hideyuki Ogata

Keichi Ochiai

Toshiya Yamauchi

Jun Tagaya

Isao Okano

Shinsuke Nakahata

Hiroshi Oomura

Minoru Ishii

A conduit attachment component with a box shape in an indoor unit of an air-conditioning apparatus includes a first component, a second component, and a third component. The second component and the third component are removably attached to the first component. The second component includes a first plate portion to which a conduit is connected. The third component includes a second plate portion. Any one of a plurality of side portions of the conduit attachment component is a first side portion, and a side portion of the plurality of side portions, adjacent to the first side portion, is a second side portion. In a first state, the first plate portion is the first side portion, and the second plate portion is the second side portion. In a second state, the first plate portion is the second side portion, and the second plate portion is the first side portion.

Indoor unit of air-conditioning apparatus

The ceiling concealed air-conditioning apparatus includes: a body containing a heat exchanger, a fan and an opening port; a decorative panel disposed below the body and configured to cover a periphery of the opening port; and a suction grille including, a rotary shaft attachable to the decorative panel and being configured to cover the opening port, wherein the suction grille includes: a locking element mounted on the suction grille so that it can slide and configured to be locked with the decorative panel; plate springs on respective sides of the locking element perpendicular to a sliding direction of the locking element and extending vertically in opposite directions; and spring supports configured to support both end faces of the respective plate springs at different positions, the plate springs include a long plate spring and a short plate spring placed such that the long plate spring engages the decorative panel first.

Ceiling concealed air-conditioning apparatus

An indoor unit for an air-conditioning apparatus includes a body having an opening, a decorative panel attached to the body to cover the opening, and a filter disposed between the body and the decorative panel. The decorative panel has a rectangular air inlet grille disposed at a location that faces the opening of the body. The air inlet grille has long-side wall portions that face each other, a plurality of short-side wall portions disposed perpendicularly to each of the long-side wall portions, a bottom portion surrounded by the long-side wall portions and the plurality of short-side wall portions, and hook receiving portions located in respective grille corner portions each located at the corresponding one of four corners of the bottom portion. The filter is formed in a rectangular shape and has hook portions in respective filter corner portions each located at the corresponding one of four corners of the filter. The hook portions are engaged with the respective hook receiving portions.

Indoor unit for air-conditioning apparatus, and air-conditioning apparatus

An indoor unit for a ceiling-concealed air-conditioning apparatus includes an indoor-unit body having an air inlet at a bottom, a decorative panel provided at the bottom of the indoor-unit body and serving as a design surface, and an inlet grille flap rotatably supported by the decorative panel and covering the air inlet. The inlet grille flap is provided with rotational-axis hinges positioned on both sides at one edge of the inlet grille flap and serving as a rotational axis of the inlet grille flap, and a latch part positioned between the two rotational-axis hinges and projecting from the one edge. The decorative panel has a flange positioned below the latch part and supporting the latch part from below when the inlet grille flap is closed.

Indoor unit for ceiling-concealed air-conditioning apparatus, and ceiling-concealed air-conditioning apparatus including the same

An air-conditioning apparatus includes a body, a decorative panel attached to a lower surface of the body defining a lower surface of the air-conditioning apparatus, an air-inlet grille that can rotate to open and close and is attached to an air inlet of the decorative panel, and a shaft disposed on the decorative panel. The shaft is movable along an axis of rotation of the air-inlet grille. The shaft includes a shaft body, a pivot protruding from one end face of the shaft body in a moving direction of the shaft, and a rib extending parallel to the pivot. The air-inlet grille has a mating portion into which the pivot is inserted to support rotation of the air-inlet grille. The pivot engages the air-inlet grille at a first limit of a movable range of the shaft. The rib engages the decorative panel while the pivot is fitted in the mating portion.

Air-conditioning apparatus

A ceiling concealed indoor unit and an air-conditioning apparatus equipped therewith includes a body; and a body decorative panel installed below the body, in which the body decorative panel includes a pair of guide ribs disposed to be opposite to each other and adapted to accept passage of a rail of an auxiliary decorative panel coupled to the body decorative panel.

Ceiling concealed indoor unit and air-conditioning apparatus equipped therewith

An indoor unit of an air-conditioning apparatus includes: a main body provided with an opening port; and a rectangular decorative panel attached to the main body to cover the opening port. The decorative panel includes a rectangular suction grille provided to face the opening port of the main body. The suction grille has one side rotatably supported on one side of the decorative panel, and is detachably attached to the decorative panel. The one side of the suction grille and the one side of the decorative panel are secured to each other by a plurality of fall prevention strings. The decorative panel is provided with two panel claw portions to which the plurality of fall prevention strings are to be hooked. The suction grille is provided with two grille claw portions to each of which respective end portions of the plurality of fall prevention strings are to be hooked.

Indoor unit for use in air-conditioning apparatus and air-conditioning apparatus including the same

A ceiling concealed air-conditioning apparatus includes: a box-shaped air-conditioning apparatus body having an open bottom; and an exterior panel attached to an underside of the air-conditioning apparatus body. The exterior panel includes: a panel body covering the open bottom of the air-conditioning apparatus body; and a panel unit removably attached to a lower part of the panel body. The panel body includes an opening at an area where the panel unit is attached to the panel body, and further includes a string hanger to hang a string at a corner of the opening, the string hanger being integral with the panel body and protruding to an inside of the opening. The panel unit includes a holding part to hold the string on a surface of the panel unit facing the panel body, the holding part being integral with the panel unit. One end of a loop of the string is held by the holding part and the other end of the loop of the string is hung on the string hanger to connect the panel body and the panel unit with the string.

Provided is a ceiling-concealed air-conditioning apparatus, including: an air-conditioning apparatus main body having an air inlet formed in a lower portion thereof; an electrical component box arranged on a side of the air-conditioning apparatus main body, and includes a switch configured to operate the air-conditioning apparatus main body, and arranged on a lower portion of the electrical component box; and a decorative panel arranged below the air-conditioning apparatus main body and the electrical component box to serve as a decorative surface, the decorative panel including: a suction grille arranged so as to be openable and closable and configured to cover the air inlet; and a side panel arranged below the electrical component box, the side panel including an openable and closable cover arranged so as to be openable and closable and configured to cover the switch when the openable and closable cover is closed, the openable and closable cover including a protruding portion protruded on a side portion of the openable and closable cover on the suction grille side, in which the openable and closable cover is opened by pulling the protruding portion downward under a state in which the openable and closable cover is closed, and in which the protruding portion is covered by the suction grille when the suction grille is closed, and the protruding portion is exposed to an outside when the suction grille is opened.

Ceiling-concealed air-conditioning apparatus

In an indoor unit of an air-conditioning apparatus, an air inlet for room air is provided at a position lower than a height position of a drain pan. A partition plate is provided to partition a space below a height position of the drain pan in a housing. A pipe connecting portion connected to a refrigerant pipe of an outdoor unit is provided in one part of the partitioned space and a heat exchanger and a fan are placed in the other part of the partitioned space. At least one communicating path is formed in the partition plate to communicate the two parts of the partitioned space with each other. The indoor unit can include a controller for activating a fan when leakage of refrigerant is detected or for closing the communicating path when leakage of refrigerant is detected.

Indoor unit of air-conditioning apparatus having leaked refrigerant ventilation

When a controller determines that a leakage of refrigerant occurs, the controller executes a control of rotating an air-sending fan at high rotation speed. After the control, the controller executes a control of stopping rotation of the air-sending fan or reducing a rotation speed of the air-sending fan in accordance with a result of detection by a first refrigerant sensor provided in a lower portion of a heat exchanger chamber. Thus, the air-sending fan is prevented from continuing the rotation at high rotation speed. Therefore, an indoor unit for an air-conditioning apparatus is excellent in safety and is capable of avoiding feeling of discomfort of a user due to the high-speed rotation of the air-sending fan.

Indoor unit for air-conditioning apparatus

A floor-positioned air-conditioning apparatus including a housing including a fan and a heat exchanger; a forward blowing control member rotatably arranged at a forward air outlet formed in a housing front surface at a position near a housing top surface; and an upward blowing control member rotatably arranged at an upward air outlet formed near the housing front surface are included. The forward blowing control member closes the forward air outlet and the upward blowing control member closes the upward air outlet during operation stop. The forward blowing control member closes the forward air outlet and the upward blowing control member is rotated and opens the upward air outlet during cooling operation. The upward blowing control member closes the upward air outlet and the forward blowing control member is rotated and opens the forward air outlet during heating operation.

Floor-positioned air-conditioning apparatus

A locking claw on an outer face of a container portion made of resin is engaged with a locking hole in an outer periphery of a case made of sheet metal, the container portion being covered by the case, a locking claw on an outer face of a cover is engaged with a locking hole in an outer periphery of a lid body, the cover being covered by the lid body, they are assembled so that a part of an opening edge of an opening portion of the case is covered by an opening edge of an opening portion of the cover, the container portion and the case as well as the cover and the lid body are fixed to form an electric equipment box and a flame spread inhibiting path is formed between the lid body and the case.

Air conditioner

A floor-standing air-conditioning apparatus includes a lower air inlet, an air outlet having an air outlet opening, a heat exchanger that is provided in the body, a crossflow fan that is provided in the body and produces a flow of air in which the air that has flowed into the body passes through the heat exchanger and is guided to the air outlet, a drain pan that is provided below the heat exchanger in the height direction of the body. The heat exchanger includes a front heat exchanger and a rear heat exchanger, a pair of which form a V shape with their lower ends being in contact with, or in proximity to, each other, and are arranged so that the crossflow fan is positioned between the front heat exchanger and the rear heat exchanger.

Floor-standing air-conditioning apparatus

In an indoor equipment of an air conditioner in which a heat exchanger, a blower, and a drain pan receiving a drain water having been condensed at mentioned heat exchanger below the heat exchanger are contained in an internal part of the indoor equipment housing including an air inlet and an air outlet; and a back portion of the drain pan is faced to an air flow path communicating with mentioned air outlet, and a stabilizer is disposed at an end portion on the upstream side of the air flow path of this drain pan, the drain panis integrally formed of a drain pan bodyand a stabilizer portionby injection molding; and a concave portionis formed on the air flow path side in the vicinity of the boundary between the drain pan body and the stabilizer portion.

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Tokyo, Japan

Tetsuya Tazawa