Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Minebea Motor Manufacturing Corporation

Koji Kuyama

Masahito Hidaka

Shigeru Yoshida

Kodo Fukuoka

Mikio Umehara

Yasushi Kamada

Mineaki Isoda

Kinjirou Okinaga

Hiroyasu Fujinaka

Masao Kojima

Noriyoshi Sato

Yoshiaki Fukuda

Toshio Uehara

Kazuhito Itakura

Chiaki Yamamoto

Toshiyuki Nishikata

Shizuka Yokote

Kumio Masuda

Michihiro Kurokawa

Tomohiko Naya

Kinjiro Okinaga

Hiroshi Ikeno

Kenji Kondo

Hiroshi Murakami

Yuichi Yoshikawa

Daisuke Sato

Yutaka Kamogi

Takashi Ogawa

Toshiaki Tsuzaki

Yuichi Tanabe

Hideharu Hiwaki

Eiichi Ibata

Ryoji Saneshige

Hideki Shimada

Yuichiro Sadanaga

Yoshio Chiba

Akio Ando

Tsuyoshi Kanou

Masafumi Kumoi

Temperature conditioning unit () includes impeller (), rotary drive source (), fan case (), housing (), intake-side back-end chamber (), intake-side front-end chamber (), and isolation wall (). Intake-side back-end chamber () adjoins an object to be temperature-conditioned. Intake-side front-end chamber () is where the air flows in from outside and flows out toward the intake-side back-end chamber. Isolation wall () separates intake-side back-end chamber () from intake-side front-end chamber ().

Temperature conditioning unit, temperature conditioning system, and vehicle

Motor controller of the present invention is used in an automobile including wheel drive motor, wheel drive inverter, and cooling fan being an accessory. Wheel drive inverter drives wheel drive motor by PWM control at a primary carrier frequency. Cooling fan has fan motor being an accessory drive motor. Motor controller includes accessory drive inverter and frequency switch. Accessory drive inverter drives fan motor by PWM control at a secondary carrier frequency. Frequency switch switches a frequency of the secondary carrier frequency based on the primary carrier frequency.

Motor control device, motor unit including said motor control device, automobile including motor unit, and motor control method

A communication apparatus () of the present invention includes a first communication circuit (), a second communication circuit (), and one signal line (). The first communication circuit () transmits a collector voltage of an open collector circuit as an output signal. A second communication circuit () receives the output signal. The one signal line () connects the first communication circuit () and the second communication circuit (). Particularly the first communication circuit () transmits the output signal as a pulse signal () to the second communication circuit (). The second communication circuit () transmits a voltage signal () generated in the second communication circuit () to the first communication circuit (). The first communication circuit () and the second communication circuit () communicate the pulse signal () and the voltage signal () bidirectionally via the signal line ().

Communication apparatus and motor control apparatus

Temperature conditioning unit according to the present invention includes: impeller, electric motor, fan case, and housing. Impeller includes impeller disk and a plurality of rotor blades. The plurality of rotor blades extends in a direction along rotary shaft. Each of the plurality of rotor blades has a cross-sectional circular-arc shape, in a direction intersecting rotary shaft, which is a convex form curving outward toward a direction of rotation of impeller disk. Each of the plurality of rotor blades includes an inner-periphery-side edge located on the rotary shaft side, and an outer-periphery-side edge located on the opposite rotary-shaft side. Housing includes external surface on which fan case is mounted. In the inside of housing, a member to be temperature conditioned is accommodated.

Temperature conditioning unit, temperature conditioning system, and vehicle provided with temperature conditioning unit

A brushless motor includes a stator having a stator core, a rotor, a circuit board, a board holder for holding the circuit board, a motor housing having a notch at an opening, and a housing cover. The motor housing accommodates the stator, the rotor, and the board holder to which the circuit board is mounted, and the motor housing is sealed with the housing cover. The board holder includes a board mount section, a lead-wire holder for holding lead-wires. The lead-wire holder is placed at the notch of the motor housing. The lead-wires extend from the circuit board mounted to the board mount section to the outside of the motor housing via the lead-wire holder.

Brushless motor and method of manufacturing thereof

A fan motor includes a motor having a shaft, a fan, and a fan fixing section for rigidly connecting the fan to the shaft. The fan has a first mounting face for the fan to be integrated with the motor. The fan fixing section has a fan mounting plate mounted to an end of the shaft and including a second mounting face in a radial direction, and an elastic plate having elastic force. The first mounting face is connected to the second mounting face via the elastic plate.

Fan motor, on-vehicle air conditioner using the fan motor, and method for assembling fan motor

The blower apparatus includes a motor; a fan; a motor drive circuit for electrically driving the coil; a microprocessor for controlling the motor drive circuit; and a motor case integrally incorporating the motor, the motor drive circuit, and the microprocessor. The blower apparatus further includes an internal power line for supplying power supply voltage Vig supplied to power supply input terminal Tv, to the motor drive circuit and the microprocessor in the motor case; a smoothing capacitor connected to the internal power line; and a cut off control circuit for cutting off supply of the power supply voltage to the internal power line according to a command from the microprocessor.

Blower apparatus and method for controlling blower apparatus in vehicle

A motor includes a shaft, a rotor mounted to the shaft along an axial direction of the shat, a stator confronting an outer wall of the rotor via a space, a thrust plate, and a buffering plate having elastic force. The rotor and the stator are disposed such that a magnetic center of the rotor is away from a magnetic center of the stator by a given distance along the axial direction. The thrust plate is disposed in the axial direction and in a direction along which restoring force acts. The buffering plate is disposed oppositely to the shaft relative to the thrust plate and supports the thrust plate.

Motor and vehicle-mounted air conditioner using same

A motor includes a shaft, a bearing for supporting the shaft rotatably, a rotor including a rotor frame to be mounted to the shaft along an axial direction of the shaft, a stator confronting an outer wall of the rotor via a space, and a washer disposed between the bearing and the rotor frame. On top of that, a step section forming a recess is provided to the rotor frame at a place where the washer confronts the rotor frame.

Motor and fan motor using the same motor

A mounting structurein which an electronic componentis surface-mounted with solderto a wiring substrateis disclosed. The solder is Sn&#x2014;Ag&#x2014;Bi&#x2014;In-based solder containing 0.1% by weight or more and 5% by weight or less of Bi, and more than 3% by weight and less than 9% by weight of In, with the balance being made up of Sn, Ag and unavoidable impurities. The wiring substrate has a coefficient of linear expansion of 13 ppm/K or less in all directions. Thus, it is possible to realize a mounting structure using lead-free solder and for which the occurrence of cracks in a solder joint portion due to a 1000-cycle thermal shock test from &#x2212;40 to 150&#xb0; C. has been suppressed.

Mounting structure and motor

The present invention provides a disk drive device that can appropriately clamp a disk by means of magnetic force even when the disk drive device is very small. A clamping magneton which a diskis mounted is attached to a turntable portionof a rotor frameto attract the disk. The clamping magnetis configured so that the diskcan be mounted on the clamping magnet. An area of the rotor framefrom the turntable portionto a boss portionis composed of a ferromagnetic material.

Disk drive device which includes a clamping magnet for attracting a disk

A brushless motor is provided which has excellent anti-impact properties and is easily assembled even if the brushless motor is reduced in size. A stator () includes a bearing () for holding a rotating shaft (), a bearing housing () in which the bearing () is placed vertically relative to the stator base (), a thrust plate () for receiving one end of the rotating shaft () in a thrust direction, a metal thrust cover () for holding the thrust plate (), a metal installation member () including an annular section () which is superposed over a base () of the bearing housing () and projecting pin sections () which project from the annular section () to the outer periphery of the thrust cover (). The projecting pin sections () of the installation member () have projection sections welded to the thrust cover ().

Brushless motor including thrust cover for holding thrust plate

Electric fan

In a stator core having 'N' slots, a tooth-width centerline of a linear yoke and a first extension line extended horizontally from a center of rotary shaft toward the linear yoke form a first angle. Assume there are first point on the first extension line at a first distance from the center, a second extension line drawn at a second distance horizontally from the center toward the linear yoke and extended vertically toward arc-shaped yokes, and a third extension line drawn from the center toward teeth ends of the linear yokes with angle 'K'. The second and third extension line intersect at a second point. A line between the first and second points intersects with the first extension line, thereby forming the first angle. In this structure, 0&#x3c;a&#x3c;b, and (360/2N&#x2212;60/2N)&#xb0;&#x3c;K&#x3c;(360/2N+60/2N)&#xb0; are established, where &#x201c;a&#x201d;, &#x201c;b&#x201d; are the first and the second distances respectively.

Electrical machine having a flattened stator with inclined teeth

In a separation preventing mechanism used in a brushless motor, an insertion section is formed into a separation preventing member () using resin, which has a form difficult to shape with a metal pressed part, and to which a latching member () can be inserted by combining rotation and shaft-direction insertion, making it easy to disassemble it after assembly and size adjustment.

Brushless motor with bearing and bearing housing

Growing community of inventors

Tottori, Japan

Koji Kuyama