Sanyo Denki Co., Ltd.

Hiroshi Hioki

Toshihito Miyashita

Masakazu Chikyu

Akira Shimizu

Satoru Onodera

Hideyuki Ishii

A circuit substrate for connection is used as a connecting member for electrically connecting a stator disposed inside a casing and a plurality of electric cables disposed outside the casing. A circuit substrate for connection is supported by a connecting member attachment. The connecting member attachment is molded using a circuit substrate for connection and a receptacle as inserts. Then, the circuit substrate for connection is disposed to pass through a wall portion of the casing in a thickness direction of the wall portion. The connecting member attachment is fixed onto the casing. Thus, the electric cables may be connected to the outside of the casing with a low-priced connecting structure.

Connecting structure for electric cables and electric apparatus

A heat radiation structure of an electric apparatus provided herein is capable of readily releasing heat of electronic components to the outside and suppressing heat conduction to a rotational position sensor. A metal electromagnetic wave shielding member is fixed to a casing body of a casing. The electromagnetic wave shielding member includes a first portion that is connected to an opposed wall portion of the casing body to face a circuit substrate and a cylindrical second portion that is extending from a peripheral end of the first portion and along a peripheral wall portion of the casing body without being in contact with a housing. A heat conductive member having electrical insulating and heat conductivity properties as well as flexibility is disposed between the circuit substrate and the electromagnetic wave shielding member to closely contact both of the plurality of electronic components and the first portion of the electromagnetic wave shielding member.

Heat radiation structure of electric apparatus

A molded motor is provided that allows for ready installation of a heat-conducting member therein and is capable of improving dissipation of heat generated from the stator. The heat-conducting member is integrally formed with a load-side end bracket. The heat-conducting member includes a stopper surface that contacts an end surface of a stator core in the axial direction of a shaft, and an extended portion extending from the stopper surface toward a non-load-side end bracket to contact an outer peripheral surface of the stator core. The heat-conducting member is embedded in a molded portion with the stopper surface contacting the end surface of the stator core and the extended portion contacting the outer peripheral surface of the stator core.

Molded motor

The present invention provides a stator for motors in which a space volume occupied by the winding wire of an excitation winding section can be increased, thereby allowing magnetic flux to readily flow through the yoke. On an inner peripheral surface portion of the yoke, a pair of flat-surface portionsare respectively formed in the circumferential direction on either sides of six fitted recessesso that the flat-surface portions are continuous with the inner surfaces of the fitted recesses. The pair of flat-surface portionsare located on the same virtual plane and have a side of an identical dimension that extends in the circumferential direction. The inner surface of the fitted recessis constituted by a pair of inclined flat surfacesrespectively continuous with the pair of flat-surface portions. The first flange portionof the bobbin, which is in contact with the inner peripheral surface of the yoke, includes a flat plate-like bodyand a pair of ribs. With the excitation winding sectionbeing mounted onto the stator core, the pair of ribsare fitted into a pair of spacesformed between the yokeand the magnetic pole constituent member

Stator for motors

A projecting portionis integrally provided at a first connecting portionof a bobbinThe projecting portionhas a triangular cross-section taken in an orthogonal direction orthogonal to a laminating direction of the steel platesand parallel to magnetic steel platesThe section of the projecting portion is geometrically similar in shape to a cross-section of a fitting recessed portiontaken in the orthogonal direction. The cross-section of the projecting portionis substantially the same in size as or slightly smaller than the cross-section of the fitting recessed portionWith this arrangement, when one ends of six magnetic columnsof a magnetic pole constituent memberare brought into engagement with six fitting recessed portionsprojecting portionspasses through the fitting recessed portionsand come out of the fitting recessed portions

Stator for motor

Coil bobbin

It is an object of the present invention to provide a motor having a structure so as to prevent the peeling off of adhesive for fixing the bearing. The outer ring of the second ball bearing is fitted into the second ball bearing fitting space of the bearing holder portion of the second end bracket. The annular leaf spring which gives a pressure in the direction toward the first end bracket to the outer ring of the second ball bearing is disposed in the pressure giving structure receiving space which is formed continuously to the second ball bearing fitting space. The annular leaf spring is shaped such that trough and crest portions appear alternately in the circumferential direction. The screw members are inserted into the screw holes formed in the second end bracket. The tip end portions of the screw members are arranged to abut the trough portions of the annular leaf spring.

Growing community of inventors

Nagano, Japan

Hiroshi Hioki