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Electromagnetic switching device

A technology of electromagnetic switches and electromagnets, applied in electromagnetic relays, electromagnetic relay details, circuits, etc., can solve problems such as increased reset force

Inactive Publication Date: 2008-08-27
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the return force increases continuously over the entire working range (magnetic travel)

Method used

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  • Electromagnetic switching device
  • Electromagnetic switching device

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Embodiment Construction

[0022] According to FIG. 5 , the armature 6 , which is movably accommodated in the switching device and consists of a soft magnetic material, rests against the stop 30 in the open position, via at least one first return spring 50 and at least one second return spring 50 . The action of the spring 8 presses against this stop.

[0023] The first return spring 50 , which is a compression spring in the exemplary embodiment, is arranged with a first bearing point 52 in the housing of the switching device, that is to say fixed in the switching device. The second support spring 54 is also laterally in the fixed position of the armature 6 which is also there. The first bearing point 52 and the second bearing point 54 are laterally offset relative to a system axis 58 parallel to the closing movement direction 56 and have a distance D from one another on a transverse axis running transversely to the system axis 58 .

[0024] The second restoring spring 8 corresponds structurally to the...

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Abstract

The invention relates to an electromagnetic switch device, which comprises an electromagnet (1), a mobile armature (6) and at least a first reset spring (50) acting on the mobile armature (6). The first reset spring acts the retaining force (F1p, 0) which is not zero to the mobile armature (6) at the breaking position; the first reset spring is installed on the mobile armature (6) in this way, in the other words, the total force (F1ges) applied on the mobile armature (6) is decided by the position of the mobile armature (6); the branch weight (F1ges) acted by the mobile direction of the closed movement which is reverse to the mobile armature (6) of the total force (F1p, 0); the electromagnetic switch device has at least a second reset spring (8); the spring axial line (61) of the second reset spring is parallel to the indicating direction of the mobile direction (56) of the mobile armature (6).

Description

technical field [0001] The invention relates to an electromagnetic switching device with an electromagnet and a displaceable armature, which is seated in the switching device with a holding force that acts against a closing force and is non-zero in the open position. Background technique [0002] The basic operating principle of this type of electromagnetic switching device is explained on the basis of the example of the contactor of FIGS. 1 to 3 . According to FIG. 1 , such a switching device comprises an electromagnet 1 with a yoke 2 on which, for example, two excitation coils 4 for excitation are arranged. The armature 6 , which is associated with the yoke 2 , is elastically accommodated in a housing 10 of the switching device, which is only schematically shown, via a return spring arrangement consisting of two return springs 8 connected in parallel. The yoke 2, the field coil 4 and the armature 6 form the electromagnetic drive of the switching device. The armature 6 is...

Claims

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Application Information

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IPC IPC(8): H01H51/06H01H50/16
CPCH01H51/06H01H50/20H01H50/546
Inventor 沃尔夫冈·法伊尔安德烈亚斯·克雷茨施马尔赖因哈德·迈尔贝恩德·特劳特曼
Owner SIEMENS AG
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