Electromagnetic switching device
AssigneeDenso Corporation
InventorsMasami Niimi, Kiyokazu Haruno, Tarou Okada, Hiroaki Higuchi
Life of this patent
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Abstract
A first coil constitutes a first coil unit by placing an iron core plate between the first coil and an auxiliary yokes and engaging stopping parts provided in two holding members to an end surface in an axial direction of the auxiliary yoke. A second coil constitutes a second coil unit by forming magnetic path members by insertion to a resin member provided in a second bobbin unitarily, and fixing two terminals to the resin member. The first and the second coil units are united by connecting one terminal lead line of the first coil taken out from holding members to the first terminal, and connecting another terminal lead line to a surface of the magnetic path member.
Claims7
An electromagnetic switching device comprising:
- a solenoid for pinion extrusion that extrudes a starter's pinion in a axial direction by using an attraction force of an electromagnet generated by an energization to a first coil that is wound around a first bobbin;
- and
- a solenoid for motor energization that closes a main switch that intermits a current flowing to a starter motor from a battery by using an attraction force of an electromagnet generated by an energization to a second coil that is wound around a second bobbin;
- wherein,
- the solenoid for pinion extrusion and the solenoid for motor energization are arranged axially in line in an axial direction to constitute the electromagnetic switching device for starters unitarily,
- the electromagnetic switching device further comprising:
- a case having a cylindrical shape with a bottom that has a ring-shaped bottom at one end side in an axial direction and an opening at other end side, wherein,
- the first coil and the second coil are accommodated in a bottom side within the case and in an top side within the case, respectively,
- an iron core plate that forms a part of magnetic circuit for the first coil and the second coil is arranged between the both coils,
- the first bobbin has a pair of flange plates that hold both sides in an axial direction of the first coil,
- the first bobbin has a plurality of holding members that extend in the axial direction to the second coil side from one of the flange plates in the iron core plate side, and stopping parts provided in the holding members,
- extracting portions that can extract the holding members to the second coil side is formed in the iron core plate,
- the holding members are extracted from the extracting portions to the second coil side in the state where the iron core plate is arranged between the first coil and the second coil, and
- the solenoid for pinion extrusion and the solenoid for motor energization are accommodated in the case in the state where the first coil and the second coil are united by engaging the stopping parts to parts of the solenoid for motor energization.
Dependencies are inferred from the claim text.