Mitsubishi Electric Corporation

Takaaki Takishita

Tatsuo Furuta

Takahiro Komatsu

Naoya Matsunaga

Masaaki Maruyama

Hiroyuki Hatakeyama

Yasuhiro Suzuki

Tetsuya Tazawa

Keisuke Tomomura

Hironobu Suehiro

Akira Maeda

Hideki Yoshii

Takao Komai

Koki Moro

Masaharu Miwa

Akinori Toyoda

Tetsuji Uchiyama

Kazuyuki Oishi

Masataka Saitou

Itsutaro Akiyama

Provided is a packing material which packs at least a unit main body of an air conditioner to be installed in a ceiling, the packing material including: a cover part for covering an opening part through which components inside the unit main body are exposed; and a cut and bent up part which has a slit part for inserting a protruding portion of the unit main body and fixes the cover part on the unit main body. The packing material can eliminate the need for a curing sheet and a tape for fixing the curing sheet while keeping out dust etc.

Packing system including packing material for air conditioner and air conditioner

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 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

An indoor unit includes a main body unit including a housing having an opening hole for pipe formed on a part of a side surface of the main body unit, a refrigerant pipe connection part projecting from inside to outside of the housing through the opening hole for pipe, and an attachment plate holding and fixing the refrigerant pipe connection part together with the housing to close the opening hole for pipe. The opening hole for pipe is formed over a first side surface on a side of the housing from which the refrigerant pipe connection part projects and a second side surface adjacent to the first side surface, and the attachment plate has an L shape including planes corresponding to the opening hole for pipe over the first side surface and the second side surface.

Indoor unit and air-conditioning apparatus

An indoor unit includes a main unit including an air inlet through which air enters from a room and an air outlet through which air blows into the room, an electrical component box mounted on an outer surface of the main unit and accommodating an electrical device, a refrigerant pipe connection portion to which a refrigerant pipe through which refrigerant passes is connected, a drain pipe connection portion to which a drain pipe through which drain water discharged from the main unit passes is connected, and an installation bolt attachment bracket mounted on the outer surface of the main unit and fixing the main unit to an installation bolt suspended from above a ceiling. The indoor unit has the refrigerant pipe connection portion, the drain pipe connection portion, and the electrical component box on the same mounting surface.

Indoor unit and refrigeration cycle apparatus

A mount unit for mounting a decorative panel on an underside of an air-conditioning apparatus main body includes a decorative panel mount fitting having a screw engagement hole that communicates with the screw insertion hole of the decorative panel and a claw that is fitted into the claw engagement hole formed on each side of the screw insertion hole of the decorative panel and a decorative panel mount screw, and is configured to be held by the decorative panel without being dropped off when the claw is fitted into the claw engagement hole and the decorative panel mount screw is engaged with the screw engagement hole with a head being oriented downward, and the decorative panel is mounted on the air-conditioning apparatus main body when the decorative panel mount screw held on the decorative panel is screwed into the screw fastening hole of the air-conditioning apparatus main body via the screw insertion hole.

Air-conditioning apparatus having decorative panel mount structure and indoor unit having the same

An indoor unit includes: a casing including a top plate and lateral plates; a motor mounted to a central part on an inner surface side of the top plate; a turbofan fixed to a rotary shaft of the motor and configured to rotate through drive of the motor; a drain pan received in the casing and mounted to the lateral plates of the casing; and a bellmouth mounted to the drain pan and configured to rectify a fluid flowing into the casing. The drain pan includes a positioning fitting having: a casing-fixing threaded hole for allowing the drain pan to be fixed to the casing with a screw; and a bellmouth-fixing threaded hole for allowing the bellmouth to be fixed to the drain pan with a screw.

A refrigeration cycle apparatus includes a refrigeration cycle through which refrigerant is circulated, an indoor unit that accommodates at least a load-side heat exchanger of the refrigeration cycle and is placed indoors, and a controller that controls the indoor unit. The indoor unit includes an indoor air-blowing fan, an air inlet through which indoor air is sucked in, and an air outlet through which the air sucked in from the air inlet is blown indoors. The controller activates the indoor air-blowing fan when leakage of refrigerant is detected. An air passage that allows air to pass through the air outlet is established in the air outlet at least when leakage of refrigerant is detected.

Refrigeration cycle apparatus with leak detection and associated air flow control

The inside of a casing constituting an indoor unit of an air-conditioning apparatus is laterally divided by an air passage partition so that an air passage chamber housing an indoor fan and an indoor heat exchanger is defined close to a casing side panel. A space in the casing close to the casing side panel is further vertically divided by a partition having through holes so that a pipe connection chamber housing parts of the extension pipes, flare joints, and indoor pipes is defined in an upper portion and a pipe draw-out chamber in which the extension pipes are arranged is defined in a lower portion. Gaps between outer peripheries of the extension pipes and inner peripheries of the through holes are filled with insulations.

Refrigeration cycle apparatus

An indoor unit according to the present invention includes a securing plate provided at an upper edge of a sidewall of a drain pan that collects drain water generated from an indoor heat exchanger, and an antimicrobial-agent-containing case that contains an antimicrobial agent and includes a case frame positioned in an area where the drain water is collected, a case-attaching portion conforming to the securing plate and being detachably attached to the securing plate, and an arm connecting the case frame and the case-attaching portion. The antimicrobial-agent-containing case is attached to the securing plate from an opening of an air inlet from which air is taken into a body.

Growing community of inventors

Tokyo, Japan

Takaaki Takishita