EP0397020B1 - Dispositif de commande de la puissance d'un four à micro-ondes. - Google Patents
Dispositif de commande de la puissance d'un four à micro-ondes. Download PDFInfo
- Publication number
- EP0397020B1 EP0397020B1 EP90108314A EP90108314A EP0397020B1 EP 0397020 B1 EP0397020 B1 EP 0397020B1 EP 90108314 A EP90108314 A EP 90108314A EP 90108314 A EP90108314 A EP 90108314A EP 0397020 B1 EP0397020 B1 EP 0397020B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- shaft
- actuator
- control device
- cam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/004—Mechanisms for operating contacts for operating contacts periodically
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
Definitions
- the invention relates to devices for controlling the power of microwave ovens comprising a timer, the movement of which causes a mechanism for periodically actuating the button of a switch mounted in the electrical supply circuit of the oven, as well that means for selecting operating modes which can be operated by the user and which are intended to influence the actuation mechanism so as to modify the closing and opening periods of said switch in order to obtain different cooking modes.
- Gear devices intended to control the duration of closing and opening of a switch are known and have structures generally adapted to the application in which they are used.
- the device described in patent FR-A-2 082 528 is intended to improve the programming of a washing machine and comprises an auxiliary timer associated with means making it possible to automatically change the gear ratio between a driving wheel and the wheel of the time of said auxiliary timer.
- the device described in this patent comprises several toothed wheels thus contributing to increasing its size and the complexity of its assembly.
- Patent FR-A-786,490 describes an apparatus intended to close an electrical circuit for a known time, thus allowing the study of certain circuits, the measurement of their time constant or the control of apparatuses such as relays, circuit breakers, recorders and in which a mechanical function must be subject to time during which they are excited.
- Such a device requires an auxiliary electrical circuit and a means of time measurement which increases its size and the complexity of its assembly.
- devices of this type manufactured according to the so-called watchmaking technique comprise relatively small parts and rigorous dimensions (for example a cam with a complicated profile), which makes their manufacturing cost relatively high.
- the periodic actuation mechanism comprises an actuator which is mounted movable against an elastic means in a reciprocating movement and which carries a cam intended to come to act on the button of the switch, as well as a cylinder which is rotated by the timer and which is slidably mounted along its axis of rotation by means of a transmitter secured to the mode selector means, said actuator and said cylinder respectively having means of '' temporary mutual couplings such as a toothed zone carried by the actuator and at least one meshing zone provided on the lateral surface of the cylinder and comprising a series of teeth which are distributed circumferentially and which extend parallel to the axis of the cylinder according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks respectively having different arc lengths entes according to their location on the height of the cylinder, so that the engagement time of said cylinder with the actuator is dependent on the position of the cylinder on its axis relative to the actuator.
- Figure 1 is a schematic view of a control device according to the invention.
- the oven control device includes a timer, the movement of which, shown diagrammatically by the output pinion 1, leads to a periodic actuation mechanism for the button 2 of a switch 3, mounted in the electrical supply circuit of the oven, as well as selector means 4 of operating modes maneuverable by the user and intended to influence the actuation mechanism so as to modify the periods closing and opening of the switch 3 in order to obtain different cooking modes,
- the actuation mechanism comprises an actuator 5 constituted by a rack which is mounted movable linearly against an elastic means such as a spring 6 in a reciprocating movement and which carries a cam 7 intended to come to act on the button 2 of the switch 3, as well as a cylinder 8 which is driven in rotation about its axis 9 by means of a toothed wheel 9 ′, and which is mounted to slide axially along said axis 9, by means of a transmitter 10 secured to the selector means 4, said rack 5 and said cylinder 8 respectively presenting temporary mutual coupling means such as the toothed zone 11 of the rack and two meshing zones 12 formed on the lateral surface of the cylinder 8 and diametrically opposite, thus leaving between them two smooth zones 13.
- an actuator 5 constituted by a rack which is mounted movable linearly against an elastic means such as a spring 6 in a reciprocating movement and which carries a cam 7 intended to come to act on the button 2 of the switch 3, as well as a cylinder 8 which is driven in rotation about its axis
- Each zone 12 comprises a series of teeth which are distributed circumferentially and which extend parallel to the axis 9 of the cylinder 8 according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks which respectively have different arc lengths in according to their location on the height of the cylinder 8, and of which, for example, two possible tracks P1 and P2 have been illustrated in broken lines.
- each series each have an end 14 called base arranged on an arc of the edge of one 15 of the transverse faces 15, 16 of the cylinder 8 while the other end 17 called apex stops along d '' a helical line (shown in dashed lines in 18) joining the two faces 15 and 16 and winding from the end 14 of the smallest tooth towards the end 17 of the longest tooth 19 in the direction of rotation of the cylinder (arrow F), this tooth 19 extending over practically the entire height of the cylinder and being located at the head in the direction of rotation of said cylinder.
- the mode selector means comprise a cam 20 driven in rotation by a control shaft 21 maneuverable by the user and mounted parallel to the axis 9 of the cylinder 8 and comprising an active part 22 extending in a helix taking place coaxially with said control tree.
- the transmitter 10 having the shape of a fork, has a forked end 23 which surrounds the axis 9 and which engages with the flange 16 of the cylinder, while the other end 24 comes to bear on the active part 22 of said cam, the transmitter being slidably mounted along an axis 25 integral with the timer unit and also parallel to the axis 9 of said cylinder 8.
- the control device thus produced operates in the following manner. Let us consider that the user maneuvers the control shaft 21 to bring the cam 20 to the position of FIG. 1. During this rotational movement, the transmitter 10 bearing by its end 24 on the active part 22 is brought to slide along the arrow G along the axis 25 and moves the cylinder 8 by its forked end 23 guided along the axis 9 until bringing it to the level shown.
- the rotation of the cylinder according to arrow F therefore brings the track P1, which has the greatest number of teeth, in mesh with the rack thus causing its translation against the spring 6 (arrow H). Thanks to this translation, the cam 7 acts on the button 2 of the switch which, from its rest position corresponding to the closing of the magnetron supply circuit, passes to its open position thus cutting off said supply, and maintains this opening as long as the rack is engaged with track P1.
Landscapes
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Measurement Of Predetermined Time Intervals (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8906300 | 1989-05-12 | ||
FR8906300A FR2646962B1 (fr) | 1989-05-12 | 1989-05-12 | Dispositif de commande de la puissance d'un four a micro-ondes |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0397020A2 EP0397020A2 (fr) | 1990-11-14 |
EP0397020A3 EP0397020A3 (fr) | 1991-10-30 |
EP0397020B1 true EP0397020B1 (fr) | 1995-03-01 |
Family
ID=9381643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90108314A Expired - Lifetime EP0397020B1 (fr) | 1989-05-12 | 1990-05-02 | Dispositif de commande de la puissance d'un four à micro-ondes. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5097105A (ko) |
EP (1) | EP0397020B1 (ko) |
JP (1) | JP2735360B2 (ko) |
KR (1) | KR0146289B1 (ko) |
DE (1) | DE69017257T2 (ko) |
ES (1) | ES2068940T3 (ko) |
FR (1) | FR2646962B1 (ko) |
IE (1) | IE900289L (ko) |
PT (1) | PT93976B (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112178701A (zh) * | 2020-09-17 | 2021-01-05 | 宁波方太厨具有限公司 | 一种新型灶具及其控制方法 |
CN112178702A (zh) * | 2020-09-17 | 2021-01-05 | 宁波方太厨具有限公司 | 一种新型灶具及其控制方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4420135A1 (de) * | 1994-06-09 | 1995-12-14 | Licentia Gmbh | Steuer- und Anzeigeeinrichtung für einen elektronischen Herd o. dgl. |
KR200142130Y1 (ko) * | 1994-08-17 | 1999-06-01 | 전주범 | 전자렌지의 타이머장치와 출력조절장치의 설치구조 |
KR0146600B1 (ko) * | 1995-07-19 | 1998-08-17 | 배순훈 | 전자렌지의 전자제어식 타이머 |
GB2337319B (en) * | 1998-05-13 | 2000-07-19 | Samsung Electronics Co Ltd | Control panel for a microwave oven |
US8464603B2 (en) * | 2011-09-19 | 2013-06-18 | Vivero One Research, Llc | Parallelogram based actuating device |
US8931359B2 (en) | 2011-09-19 | 2015-01-13 | Vivero One Research, Llc | Parallelogram based actuating device |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR786490A (fr) * | 1934-05-23 | 1935-09-03 | Arnoux Vve Chauvin & Cie | Appareil pour la production d'émissions de courant de durée réglable et connue |
GB898037A (en) * | 1959-09-15 | 1962-06-06 | Brentford Transformers Ltd | Improvements in intermittent reversing drives |
FR2082528A5 (ko) * | 1970-03-17 | 1971-12-10 | Crouzet & Cie | |
US4177370A (en) * | 1976-02-13 | 1979-12-04 | Sharp Kabushiki Kaisha | Variable cooking mode selector in a microwave oven |
US4129769A (en) * | 1976-03-11 | 1978-12-12 | Sharp Kabushiki Kaisha | Timer arrangement in a combination microwave oven and electric heating oven |
US4133998A (en) * | 1976-06-22 | 1979-01-09 | Sharp Kabushiki Kaisha | Cooking mode selector for continuously varying a mean output level of a magnetron in a microwave oven |
US4629845A (en) * | 1983-05-02 | 1986-12-16 | Eaton Corporation | Electrical appliance programming |
US4551590A (en) * | 1984-05-14 | 1985-11-05 | Eaton Corporation | Appliance control and programmer timer therefor |
US4678930A (en) * | 1986-02-05 | 1987-07-07 | Eaton Corporation | Microwave oven timer |
-
1989
- 1989-05-12 FR FR8906300A patent/FR2646962B1/fr not_active Expired - Fee Related
-
1990
- 1990-01-25 IE IE900289A patent/IE900289L/xx unknown
- 1990-01-29 US US07/471,519 patent/US5097105A/en not_active Expired - Fee Related
- 1990-05-02 ES ES90108314T patent/ES2068940T3/es not_active Expired - Lifetime
- 1990-05-02 EP EP90108314A patent/EP0397020B1/fr not_active Expired - Lifetime
- 1990-05-02 DE DE69017257T patent/DE69017257T2/de not_active Expired - Fee Related
- 1990-05-08 PT PT93976A patent/PT93976B/pt not_active IP Right Cessation
- 1990-05-11 JP JP2120190A patent/JP2735360B2/ja not_active Expired - Lifetime
- 1990-05-12 KR KR1019900006784A patent/KR0146289B1/ko not_active IP Right Cessation
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112178701A (zh) * | 2020-09-17 | 2021-01-05 | 宁波方太厨具有限公司 | 一种新型灶具及其控制方法 |
CN112178702A (zh) * | 2020-09-17 | 2021-01-05 | 宁波方太厨具有限公司 | 一种新型灶具及其控制方法 |
CN112178702B (zh) * | 2020-09-17 | 2022-03-18 | 宁波方太厨具有限公司 | 一种新型灶具及其控制方法 |
CN112178701B (zh) * | 2020-09-17 | 2022-03-18 | 宁波方太厨具有限公司 | 一种新型灶具及其控制方法 |
Also Published As
Publication number | Publication date |
---|---|
ES2068940T3 (es) | 1995-05-01 |
PT93976A (pt) | 1991-01-08 |
FR2646962A1 (fr) | 1990-11-16 |
FR2646962B1 (fr) | 1992-07-31 |
KR0146289B1 (ko) | 1998-09-15 |
KR900019092A (ko) | 1990-12-24 |
JPH03129210A (ja) | 1991-06-03 |
PT93976B (pt) | 1997-08-29 |
DE69017257T2 (de) | 1995-07-06 |
DE69017257D1 (de) | 1995-04-06 |
JP2735360B2 (ja) | 1998-04-02 |
IE900289L (en) | 1990-11-12 |
EP0397020A3 (fr) | 1991-10-30 |
US5097105A (en) | 1992-03-17 |
EP0397020A2 (fr) | 1990-11-14 |
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