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Electromagnetic power contactor provided with at least one lubricated electric wire coil

A technology of contactors and coils, applied in the direction of electromagnetic relays, electromagnetic relay details, coils, etc., can solve problems such as poor layout, low-level filling, and large overall size, so as to improve the filling factor, increase the quality, and reduce the size of the coil small effect

Inactive Publication Date: 2017-04-19
VALEO EQUIP ELECTRIC MOTEUR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, it is more difficult to wind the holding coil conductor wire with a small diameter to have a greater resistance and thus reduce the current consumed in the contactor
Thus, as shown in FIG. 1 , the turns 1 of the holding coil 2 are generally poorly arranged on the coil body 3 with the axis Y, which leads to a low level of filling and thus to large overall dimensions.

Method used

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  • Electromagnetic power contactor provided with at least one lubricated electric wire coil
  • Electromagnetic power contactor provided with at least one lubricated electric wire coil
  • Electromagnetic power contactor provided with at least one lubricated electric wire coil

Examples

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Embodiment Construction

[0043] figure 2 A contactor 10 for controlling the activation of an electric motor of a starter for an internal combustion engine is shown. The contactor 10 is provided with a fixed core 12 and a movable core 13, each made of ferromagnetic material, and a metal casing 15 in which is arranged a set of coils 16a, 16b fitted in ring-shaped Insulated coil body 19. The coil body 19 with the axis Y passes through the bearing 14 ( image 3 can be clearly seen in ) supported on the annular edge of the fixed core 12 .

[0044] The movable core 13 is capable of a rest position (see figure 2 ) and the magnetizing position, in the rest position, the movable core 13 is located at a distance from the fixed core 12, and in the magnetized position, the movable core 13 is in contact with the fixed core 13.

[0045] For this purpose, the set of coils 16a, 16b comprises a pull-in coil 16a and a hold coil 16b. The two coils 16a, 16b are powered in order to displace the movable core 13 from i...

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Abstract

The invention relates mainly to an electromagnetic power contactor, especially for an electric motor of a starter of an internal combustion engine, comprising at least one coil (16b), said coil (16b) being formed by a conductive wire (37b) wound around a coil body, said conductive wire (37b) of said coil comprising a core (40) made from a conductive material, and a layer of electrically insulating varnish (41), said wire (37b) being covered with a layer of lubricant.

Description

technical field [0001] The invention relates to an electromagnetic power contactor provided with at least one lubricated wire coil. The invention has a particularly advantageous application in the field of electromagnetic contactors for power circuits, in particular electric motors for starters of internal combustion engines, in particular for motor vehicles. Background technique [0002] In a known manner, the contactor has two functions, first by pivoting the lever to displace the starter supporting the pinion of the starter in order to allow the pinion to engage in the crown of the thermal engine to be started , which secondarily supplies power to the electric motor of the starter, thereby making it possible to rotate the pinion. [0003] The contactor is provided with a fixed core and a movable core, each made of a ferromagnetic material, and is provided with a metal case in which a set of coils mounted on an insulating coil body is provided. The movable core is displa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F5/06H01B3/30H01F7/123
CPCH01B3/308H01F5/06H01F7/123F02N15/067F02N11/087H01H50/44H01H51/065
Inventor N.拉贝E.韦尔奈R.安德勒J.S.梅特拉
Owner VALEO EQUIP ELECTRIC MOTEUR