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Electromagnetic actuating device

A manipulation device, electromagnetic technology, applied in the direction of electromagnet, electromagnet with armature, magnet, etc.

Pending Publication Date: 2022-06-24
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the embodiment of the magnetic partition is associated with a certain outlay during production

Method used

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Embodiment Construction

[0032] Electromagnetic manipulators are figure 1 10 (hereafter referred to as “manipulation device 10”) is generally provided in the . Such an actuating device 10 is used, for example, in drive technology in motor vehicles, in particular for controlling clutches of automatic transmissions. For this purpose, for example, a hydraulic valve is actuated by means of the actuating device 10, which hydraulic valve is figure 1 is only schematically indicated by a box provided with the reference number 12 .

[0033] The handling device 10 has a housing 14 in which the components of the handling device 10 are arranged. The actuating device 10 has a solenoid coil 16 with a coil body 18 and a winding 20 . The housing 14 is closed at the first end side 22 by means of a closure 24 , for example a flux disk 24 . The housing 14 is closed at the second end side 26 by means of a cover 28 , for example a pole disc 28 . An electrical contact 30 is provided on the housing 14 , which electrica...

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Abstract

The invention relates to an electromagnetic actuating device (10) comprising a pole sleeve (34) extending in an axial direction (46) and an armature (32) arranged radially within the pole sleeve (34), the pole sleeve (34) having a first axial end (48) and a second axial end (50), and the armature (32) being guided within the pole sleeve (34). According to the invention, the pole sleeve (34) has recesses (62) in the region (56) between the axial ends (48, 50), the contours of which each change in the axial direction (46).

Description

technical field [0001] The invention relates to an electromagnetic actuating device according to the preamble of claim 1 . Background technique [0002] In passenger car automatic transmissions, hydraulically actuated clutches are used for shifting, wherein the hydraulic pressure on the clutch is set by means of hydraulic slide valves. The slide valve can be actuated via an auxiliary valve (precontrol) or directly via an electromagnetic actuating device. For actuating devices of this type, embodiments with pole tubes or pole sleeves have been demonstrated in practice, ie the magneto armature is guided in the pole tube. The main development focus was to obtain the highest possible magnetic force level (large lift to do work), ie the magnetic efficiency had to be brought to a high level. Such an actuating device with a pole tube is known from DE 10 2012 223 430 A1, wherein the pole tube has a “magnetic separation” which is designed as a thin deflection point. The thinly def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/08H01F7/16
CPCH01F7/081H01F2007/085H01F7/1607H01F2007/086
Inventor K·舒特M·斯塔尔B·格纳姆C·奥特U·吕策伯格
Owner ROBERT BOSCH GMBH
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