EP 0436486 A1 19910710 - Microwave oven's door opening and closing detection apparatus using photo-detecting sensor.
Title (en)
Microwave oven's door opening and closing detection apparatus using photo-detecting sensor.
Title (de)
Apparat mit Photodetektor zur Feststellung des Öffnens und Schliessens der Tür eines Mikrowellenherdes.
Title (fr)
Appareil pour détecter l'ouverture et la fermeture d'une porte de four à micro-ondes, utilisant une sonde photo-détective.
Publication
Application
Priority
KR 890020810 U 19891230
Abstract (en)
The invention relates to a microwave oven's door opening and closing detection apparatus using a photo-detecting sensor in order to detect a defect of a mechanical switch. It comprises a mechanical switch (20) for controlling a magnetron, a lever (5) actuated by a hook (2) attached to the door of the oven, a photo-detecting sensor (30) operating according to the lever (5) and a microprocessor receiving the output signals of the photo-detecting sensor (30) as well as the mechanical switch (20) and processing them for controlling the microwave oven by applying power to a transformer. It detects the state of the door by using the photo-detecting sensor (30) as well as the mechanical switch (20) and controls the microwave oven according to the state of the door by using the mounted microprocessor. <IMAGE>
IPC 1-7
IPC 8 full level
F24C 7/02 (2006.01); F24C 7/08 (2006.01); H05B 6/76 (2006.01)
CPC (source: EP)
H05B 6/6417 (2013.01)
Citation (search report)
- [AD] US 4638137 A 19870120 - KAZUMI HIRAI [JP]
- [A] US 4504719 A 19850312 - TAYLOR JR BENSON T [US], et al
- [A] US 4511780 A 19850416 - OKAMURA YOSHIO [JP]
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0436486 A1 19910710; EP 0436486 B1 19941012; DE 69104504 D1 19941117; DE 69104504 T2 19950524; JP 2509977 Y2 19960904; JP H0587408 U 19931126
DOCDB simple family (application)
EP 91100007 A 19910102; DE 69104504 T 19910102; JP 40599190 U 19901228