(19) |
 |
|
(11) |
EP 0 403 216 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
08.07.1992 Bulletin 1992/28 |
(43) |
Date of publication A2: |
|
19.12.1990 Bulletin 1990/51 |
(22) |
Date of filing: 12.06.1990 |
|
|
(84) |
Designated Contracting States: |
|
BE DE DK ES FR GB IT NL SE |
(30) |
Priority: |
14.06.1989 GB 8913633
|
(71) |
Applicant: ELECTROLUX OUTDOOR PRODUCTS LIMITED |
|
Newton Aycliffe,
Co Durham DL5 6UP (GB) |
|
(72) |
Inventor: |
|
- Turner, Colin
Bishop Auckland,
Co. Durham (GB)
|
(74) |
Representative: Arthur, Bryan Edward et al |
|
Withers & Rogers
4 Dyer's Buildings
Holborn London EC1N 2JT London EC1N 2JT (GB) |
|
|
|
(54) |
Electromagnetic actuator arrangement |
(57) An electromagnetic actuator arrangement comprising a switch (SW1) biased open by
a biasing spring (SP) and operated by a yoke (Y1) which attracts an armature (AR1)
when its winding (L1) is energised is provided with means (C1, SCR1) for instantaneously
reversing the magnetising force acting on the armature when the winding (L1) is de-energised.
As a result, the residual magnetism in the armature (AR1) is opposed by the reversed
magnetic field from the winding (L1) and the tendency of the armature to stick to
the yoke is avoided. Consequently the release time is reduced.