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Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter

A technology of electromagnetic switch and manufacturing method, which is applied in the direction of motor starting for engine, electromagnetic relay, engine components, etc., can solve the problems of large range of reserved stroke tolerance and low positioning accuracy of driving gear, and achieves reduced tolerance, improved positioning accuracy, Effect of Tolerance Range Reduction

Active Publication Date: 2013-12-04
ROBERT BOSCH STARTER MOTORS GENERATORS (CHINA) CO
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem of low positioning accuracy of the driving gear caused by the relatively large tolerance range of the reserved stroke of the electromagnetic switch and the size and position of the engagement window in the prior art vehicle starter

Method used

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  • Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter
  • Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter
  • Electromagnetic switch, manufacturing method of electromagnetic switch and vehicle starter

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Embodiment Construction

[0037] Some preferred embodiments of the present invention are described below with reference to the accompanying drawings.

[0038] figure 2 An electromagnetic switch for use in a vehicle starter according to an embodiment of the present invention is shown in . The electromagnetic switch includes a housing 2, which has a substantially cylindrical body and is located at the front end of the body ( figure 2 The left end in the center, the end towards the vehicle engine side) the reduced diameter portion 2a.

[0039] In the rear portion of the body of the housing 2, a fixed iron core 4 is fixedly installed. The fixed core 4 includes a substantially disc-shaped large-diameter portion fixed in the body of the housing 2, a substantially cylindrical small-diameter portion protruding forward from the large-diameter portion, and a substantially frusto-conical portion protruding forward from the small-diameter portion. In addition, a guide through hole penetrating forward and back...

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PUM

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Abstract

The invention discloses a manufacturing method of an electromagnetic switch of a vehicle starter. A single push rod is moved backwards until an initial electric connection state which is set up between two binding posts through a contact bridge on the push rod is detected. The push rod is further moved backwards for a reserved distance, under the condition that the state that a movable iron core is pushed to abut against a fixed iron core is kept, the movable iron core is fixed on the push rod and a splicing window used into which the upper end of a shift fork to can be inserted is machined in the front end of the push rod. The invention further discloses the electromagnetic switch manufactured with the manufacturing method and the vehicle starter comprising the electromagnetic switch. The manufacturing method of the electromagnetic switch, the electromagnetic switch and the vehicle starter can improve the positioning precision of a drive gear.

Description

technical field [0001] The present invention relates to an electromagnetic switch used in a vehicle starter, a method of manufacturing the electromagnetic switch, and a vehicle starter including the electromagnetic switch. Background technique [0002] The starter of a motor vehicle is usually composed of a DC motor, a transmission mechanism and a control mechanism. When the engine of the vehicle is started, the electric motor generates rotational torque, which is transmitted to the ring gear on the flywheel of the engine through the drive gear of the transmission mechanism to drive the crankshaft of the engine to rotate. [0003] The control mechanism is used to control the on-off of the starter circuit, and to control the engagement and disengagement of the drive gear and the ring gear. At present, the widely used starter control mechanism is an electromagnetic switch. figure 1 A structural schematic diagram of an existing starter electromagnetic switch is shown. The el...

Claims

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Application Information

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IPC IPC(8): H01H49/00H01H51/06F02N11/00
CPCH01H51/065H01H49/00F02N11/087F02N15/006H01H51/06H01H50/045
Inventor J·博雷斯陈国军陈戟铭
Owner ROBERT BOSCH STARTER MOTORS GENERATORS (CHINA) CO
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