Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Hidetaka Yamauchi

Noboru Kawaguchi

Koji Hirose

Tomoya Hattori

Toshiyuki Kubono

Tomoya Yanase

Tomoaki Fukushima

Kazuho Ito

Kazuhiro Ooishi

Hiroshi Iwazaki

Kazuho Itou

Ichiro Shirokawa

Takahiro Watanabe

Yoshihiko Konishi

Hiroyuki Jinnai

Masaki Haruna

Akio Iida

Kentaro Yonehara

Taro Ueda

Yuto Takeuchi

Yuki Maeda

Kenichi Unno

A robot includes: a chest; a pair of right and left upper limbs; and a pair of right and left shoulders connecting the right and left upper arms rotatably to the chest with two rotational degrees of freedom, respectively. The shoulder includes: a shoulder joint connecting the upper arm rotatably; a chest-side main link attaching unit provided; an upper arm main link attaching unit provided in the upper arm; an upper arm drive main actuator including an upper arm drive main link having a variable length and a power source for generating force changing the length of the upper arm drive main link; a chest-side auxiliary link attaching unit provided in the chest; an upper-arm-drive-main-link-side auxiliary link attaching unit provided in the upper arm drive main link; and an upper arm drive auxiliary actuator including an upper arm drive auxiliary link having a variable length and a power source for generating force changing the length of the upper arm drive auxiliary link.

Robot

A robot includes elbows connecting forearms rotatably to upper arms with two rotational degrees of freedom. The elbow includes: an elbow joint connecting the forearm and the upper arm with two rotational degrees of freedom; an elbow drive main link; an elbow drive auxiliary link; a forearm-side main link attaching unit attached with one end of the elbow drive main link with two rotational degrees of freedom, and provided in the forearm; an elbow-drive-main-link-side auxiliary link attaching unit attached with one end of the elbow drive auxiliary link with two rotational degrees of freedom, and provided on the elbow drive main link; and two linear actuators for moving two upper-arm-side link attaching units each attached with the other end of either the elbow drive main link or the elbow drive auxiliary link with two rotational degrees of freedom, and provided so as to be movable along the upper arm.

An outdoor unit for an air-conditioning apparatus includes a housing; a compressor provided in the housing and configured to compress refrigerant; an outdoor heat exchanger provided in the housing and allowing refrigerant and air to exchange heat with each other; a partition plate provided in the housing and partitioning an inside of the housing into a fan chamber and a machine chamber in which the compressor is provided; an electronic component provided in the machine chamber; a refrigerant pipe provided in the machine chamber and connecting the compressor and the outdoor heat exchanger and disposed above the electronic component; a valve connected to the refrigerant pipe in the machine chamber and disposed above the electronic component; and a drip inhibiting portion that covers the refrigerant pipe and a lower part of the valve and inhibits water dripping from the refrigerant pipe from dripping onto the electronic component.

Outdoor unit for air-conditioning apparatus and air-conditioning apparatus

A three-rotational-degree-of-freedom connection mechanism required for a robot that can make motion similar to a human has a simple structure, and there is no restriction on motion within a movable range. The three-rotational-degree-of-freedom connection mechanism includes a joint connecting a second member rotatably to a first member with three rotational degrees of freedom including rotation around a torsion axis, three actuators each including variable length links having a variable length, and power sources for generating force changing the lengths of variable length links and three first-member-side link attaching units provided in first member and the second-member-side link attaching units provided on the second member such that variable length links having a twisted relationship with respect to a torsion axis exist in each state within a movable range of joint.

Three-rotational-degree-of-freedom connection mechanism, robot, robot arm, and robot hand

Provided is an outdoor unit for an air-conditioning apparatus having high reliability. A protective net disposed over an air inlet at a rear surface of a casing includes a frame body defining an outer periphery of the protective net, and a plurality of vertical bars and a plurality of horizontal bars crossing each other inside the frame body and defining a plurality of ventilation openings. Each horizontal bar has an upper surface having a downwardly open V-shape in vertical cross-section formed by combining a rear upper surface inclined downward and rearward and a front upper surfaced inclined downward and forward. When it snows, snow on the horizontal bar slides off a downward slope without freezing into ice on the horizontal bar. Accordingly, a reduction in an opening area of the ventilation openings due to ice does not occur.

Outdoor unit for air-conditioning apparatus

An outdoor unit of an air-conditioning apparatus includes: a bottom plate having a drain hole formed therein to discharge drain water generated in a heat exchanger; a heater provided at an upper surface of the bottom plate; a heater fixing tool provided to fix the heater to the bottom plate, with the heater interposed between the heater fixing tool and the upper surface of the bottom plate; a screw fastened after inserted into a screw hole from above to fix the heater fixing tool to the bottom plate, the screw hole being provided in overlapping portions of the heater fixing tool and the bottom plate; and a protective cap configured to cover a tip of the screw from below, which projects downwards from a lower surface of the bottom plate. The screw hole is located in a surrounding area which surrounds the drain hole, and the heater fixing tool is fixed to the bottom plate in the surrounding area.

Outdoor unit of air-conditioning apparatus and method for manufacturing the same

Growing community of inventors

Tokyo, Japan

Hidetaka Yamauchi