Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Noriaki Matsunaga

Hiroki Aso

Mineo Yamamoto

Hiroyuki Ishii

Takeshi Araki

Kazunori Sakanobe

Atsushi Matsuoka

Satoru Toyama

Hiroyuki Teramoto

Mamoru Kawakubo

Kota Mizuno

Takanori Sone

Kanichiro Sugiura

Shinobu Ogasawara

Hiroki Asou

Takako Takei

Yutaka Hirakawa

Takayuki Hanaki

Takeharu Kageyama

An electronic component mounting substrate includes an electronic component mounted on a surface of a substrate, an electrode portion disposed on the surface of the substrate and electrically connected to the electronic component, a lead wire connected to the electrode portion, and an encapsulation resin configured to encapsulate a part of the lead wire, the electronic component, and the electrode portion. A surface of at least the part of the lead wire encapsulated by the encapsulation resin and the surface of the substrate are coated with a deposited film.

Electronic component mounting substrate, motor, air-conditioning apparatus, and method for manufacturing the electronic component mounting substrate

An insulating material that tends not to hydrolyze is used to thereby provide a heat pump apparatus having long-term reliability. An electric motor of a compressor is fixed to a sealed container and includes a stator around which a winding wire is wound through intermediation of an insulating material, and a rotor surrounded by the stator. The insulating material is a wholly aromatic liquid crystal polyester (LCP) having a molecular main chain constituted by a monomer including p-hydroxybenzoic acid (PHB) as an essential monomer and a monomer solely including benzene-ring as another monomer via an ester bond. The refrigerating machine oil has a saturated water content of 2% or less at 40 degrees C., a relative humidity of 80%, for 24 Hr. To suppress the explosive decomposition reaction of ethylene-based fluorohydrocarbon, a flame retardant is used to generate chemical species that complement active radicals that cause the decomposition reaction.

Heat pump compressor including liquid crystal polymer insulating material

A rotor resin assembly of a rotor of an electric motor includes a rotor magnet including a substantially cylindrical yoke molded from thermoplastic resin containing a soft magnetic material or ferrite and a resin magnet integrally formed in the outer circumference of the yoke, a position detection magnet arranged at one end in the axial direction of the rotor magnet, and a substantially doughnut-like rotor core arranged in the inner circumference of the rotor magnet and formed by laminating a predetermined number of electromagnetic steel plates. The rotor magnet, the position detection magnet, and the rotor core are integrally formed by resin. A shaft is inserted into an inner diameter section of the rotor core, and the rotor resin assembly is caulked by a jig to form a recess in the vicinity of the inner diameter sections of both end faces of the rotor core and assembled to the shaft.

Rotor of electric motor, mold motor, air conditioner, and method of manufacturing the mold motor

A highly efficient and long-life pump is provided through improvement of pump efficiency by extending an effective length of a blade of an impeller and through reduction of friction loss of a thrust bearing. In a pump, a suction direction X and a discharge direction Y of a liquid are approximately perpendicular to each other. The pumpincludes a shaftpositioned downstream of a suction inlet; an impellerconfigured in a disk shape that rotates around the shaft, the impellerhaving a plurality of bladesformed radially in a radial direction from a center area located at a center portion of the disk shape as seen in the suction direction X, the plurality of bladesbeing positioned at an approximately same longitudinal position as a longitudinal position of a discharge outlet; and a bearing (-) that receives the shaft, the bearing (-) being positioned at the center area of the impellerand having a through hole (-) as a guide portion for guiding the liquid drawn in from the suction inletto the discharge outlet

Pump and heat pump apparatus

A manufacturing method of a water circulating pump including a shaft, a pump part having a first casing in which a first concavity is formed for receiving one end portion of the shaft to restrain rotation of the shaft. A stator part has a second casing in which a second concavity is formed for receiving another end portion of the shaft to restrain rotation of the shaft and a stator for rotating a rotor by electromagnetic interaction. The method includes inserting the another end portion of the shaft into a position corresponding to the second concavity of a mold for molding the second casing, and molding the second casing by injecting a thermoplastic resin into the mold for molding the second casing into which the another end portion of the shaft has been inserted.

Water circulating pump, manufacturing method thereof, and heat pump apparatus

A plastic magnet precursor which can be supplied in molding a plastic magnet with a constant composition without requiring kneading in which a resin is melted and sheared. Through injection molding using the precursor, a plastic magnet having little deterioration of magnetic properties and a small variation in quality is obtained. The plastic magnet precursor according to the present invention includes an Nd&#x2014;Fe&#x2014;B isotropic magnet powder and a ferrite anisotropic magnet powder subjected to coating with a titanate coupling agent, and a thermoplastic resin powder adhered around the magnet powder.

Plastic magnet precursor, production method for the same, and plastic magnet

Growing community of inventors

Tokyo, Japan

Noriaki Matsunaga