Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Atsuya Iwamoto

Shigeru Shiroyama

Yuzuru Kobayashi

Toshiyuki Oonishi

Tadashi Yokoyama

Seisaku Imagawa

Katsunori Yagi

A heat dissipation heat sink having a press-fit hole whose inner peripheral surface is a cast skin surface is included; the heat dissipation heat sink is sandwiched by the press-fit head and the insertion guide by aligning the axis of a rectifying element in an insertion guide with the axis of the press-fit hole and making the press-fit head face the heat dissipation heat sink; a protrusion portion of a load receiving jig is made to face the rectifying element in the insertion guide; and the rectifying element is press-fitted into the press-fit hole of the heat dissipation heat sink by pressing the periphery of the press-fit hole of the heat dissipation heat sink () by the press-fit head and receiving a load applied to the rectifying element by the protrusion portion of the load receiving jig.

Method for manufacturing rectifier and rectifier

A starter comprises a thermostat for detecting increases in the temperature of brushes and interrupting the energizing of the starter, and a heat conducting member secured to the thermostat for conducting the heat of one of the brushes, the heat conducting member being attached to the brush. The heat conducting member may also be formed integrally with a brush holder. The heat conducting member may additionally be secured to a bracket so as to hold a base therebetween. The heat conducting member may also be composed of a metallic material having superior thermal conductivity, and may be copper or brass. An electrically insulating sheet may be held between the brush holders and the base as heat insulating material for preventing the transfer of heat from the brushes to the base. An electrically insulating tube may also be interposed between the thermostat and a first leg of the heat conducting member.

Engine starter with a thermostat for thermal protection

A starter comprises a thermostat for detecting increases in the temperature of the starter and interrupting the energizing of the starter, the thermostat being disposed in the vicinity of brushes and secured to a rear bracket. A holder for restricting relative displacement between the rear bracket and the thermostat and a connector electrically connected to the thermostat having an O-ring on the outer circumference thereof may also be provided. The thermostat and the connector may be integrated or disposed independently and connected by lead wires. The thermostat may be disposed on the perimeter of the brushes with its longitudinal direction parallel to the axial direction of an armature or between the brushes and the rear bracket with its longitudinal direction perpendicular to the axial direction of the armature.

Starter

Growing community of inventors

Tokyo, Japan

Atsuya Iwamoto