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Electromagnetic switch for auxiliary-rotation starter

An electromagnetic switch and auxiliary rotation technology, applied in the direction of engine starting, electromagnetic relay, engine components, etc., can solve the problems of deterioration of heat resistance, deterioration of assembly operability, increase of winding space, etc., and achieve good meshing and meshing Good durability and productivity, and the effect of reducing magnetic attraction force

Active Publication Date: 2010-11-03
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of making the coil thinner, the auxiliary rotation current does not change due to the reduction in the conductor volume, so the heat resistance deteriorates. As a result, there is a problem that assembly operability deteriorates

Method used

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  • Electromagnetic switch for auxiliary-rotation starter
  • Electromagnetic switch for auxiliary-rotation starter
  • Electromagnetic switch for auxiliary-rotation starter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0042] figure 1 It is a configuration diagram showing an electromagnetic switch of the assist swing starter according to Embodiment 1 of the present invention. figure 1 The electromagnetic switch 8 adopts the following structure: that is, it includes: a housing 21, the housing constitutes the outline of the electromagnetic switch 8 and forms a magnetic circuit; a core 18, the core is fixed on one end side of the housing 21; the plunger 11. The above-mentioned plunger is opposed to the above-mentioned core 18 through the gap 23, and protrudes and moves toward the other end side of the above-mentioned housing 21; Inside the case 21, the attracting coil 9 and the holding coil 10 are wound.

[0043] The electromagnetic switch of the auxiliary rotary starter of the present invention is characterized in that a core 26 for magnetic shunting is provided on a part of the inner diameter side of the above-mentioned bobbin 14 at a position that does not contact the plunger 11, and the ...

Embodiment approach 2

[0055] figure 2 It is a part of the winding structure diagram of Embodiment 2 of this invention. exist figure 2 Among them, the holding coil 10 is only wound on the small diameter portion 14c side of the stepped portion 14a of the bobbin 14, and the difference between the winding outer diameter of the large diameter portion 14b and the holding coil 10 and the coil diameter of the attracting coil 9 is equal to that of the attracting coil 9. At 1 / 2 or less of the coil diameter, the attracting coil 9 is wound in a row around the outer periphery of the holding coil 10 and the large diameter portion of the bobbin 14 .

[0056] According to this structure, the space inside the electromagnetic switch can be used without waste, and the winding operation of the holding coil 10 and the attracting coil 9 becomes easy, and it is possible to provide a low-cost, good assembly, and no damage to the ring gear and pinion. , Electromagnetic switch for auxiliary rotary starter with good mesh...

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Abstract

In an electromagnetic switch for auxiliary-rotation starter in the prior technology, it is required to reduce the ampere-turn amount without lowering the pullin coil resistance and it is required to increase the wire diameter of the coil so as to increase the number of turns and to implement opposite winding. There has been a problem that: the assembling performance and the operation are relativebad and the productivity is deteriorated due to increased conductor volume and the opposite winding structure. In an electromagnetic switch for an auxiliary-rotation starter according to the present invention, the magnetic bypass core is disposed at a place that is an air gap portion, in a magnetic circuit, through which the plunger moves due to magnetic attractive force produced by energizing the attraction coil and the holding coil and that is between the outer circumference of the plunger and the inner circumference of the bobbin, in such a way that one end thereof makes contact with one end of the case and the other end thereof faces the end of the core by the intermediary of an air gap.

Description

technical field [0001] The present invention relates to a magnetic switch for an auxiliary rotary starter for starting an engine. Background technique [0002] In the conventional electromagnetic switch of an auxiliary rotary starter, it is known that two types of coils, a pull-in coil and a hold-in coil, are used as coil windings. The magnetic attraction force of the plunger, the above-mentioned retaining coil generates the magnetic retaining force to retain the plunger after the attraction, and when the engine is started by the starter, an auxiliary rotational force is generated to slowly rotate the starter motor before the contact of the electromagnetic switch is closed. out of the pinion while utilizing the auxiliary rotational force to smoothly mesh the pinion with the ring gear (ring gear). [0003] image 3 A sectional view of such a conventional auxiliary rotary starter is shown, and the overall structure of this starter will be described below based on this figure....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H51/06H01H50/44
CPCH01H51/065H01H50/36F02N15/067H01H50/42
Inventor 金田直人金太炫龟井光一郎森山德昭月间满
Owner MITSUBISHI ELECTRIC CORP
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