WO2005044068A1 - Grille-pain muni d'une fonction de protection par arret automatique de l'alimentation - Google Patents

Grille-pain muni d'une fonction de protection par arret automatique de l'alimentation Download PDF

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Publication number
WO2005044068A1
WO2005044068A1 PCT/CN2004/000922 CN2004000922W WO2005044068A1 WO 2005044068 A1 WO2005044068 A1 WO 2005044068A1 CN 2004000922 W CN2004000922 W CN 2004000922W WO 2005044068 A1 WO2005044068 A1 WO 2005044068A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
toaster
electromagnet
power
protection function
Prior art date
Application number
PCT/CN2004/000922
Other languages
English (en)
Chinese (zh)
Inventor
Houyu Huang
Original Assignee
Guangdong Yilong Electrical Appliance Products Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Yilong Electrical Appliance Products Co., Ltd. filed Critical Guangdong Yilong Electrical Appliance Products Co., Ltd.
Publication of WO2005044068A1 publication Critical patent/WO2005044068A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A47J37/06—Roasters; Grills; Sandwich grills
    • A47J37/08—Bread-toasters
    • A47J37/0814—Bread-toasters with automatic bread ejection or timing means

Definitions

  • the present invention relates to a toaster for household appliances for baking bread, and more particularly to a toaster with an automatic power-off protection function. It belongs to the technical field of toasters.
  • BACKGROUND OF THE INVENTION Existing toasters usually include a control circuit, an electromagnet, an electronic timer, and a lifting frame. The bread is placed in the bread trough of the toaster and the lifting frame is pressed down to the heating position. After the power is turned on, the control circuit is in the control circuit. The output of the integrated circuit or the single-chip microcomputer continuously draws the electromagnet, and the lifting frame is kept at the heating position at the bottom of the bread tank. The heating wire starts to work to bake the bread.
  • the timer When the baking time reaches the preset time of the timer, the timer is on the line. Loss of electricity causes the electromagnet to loosen, and the lifter bounces the bread back to the initial top position.
  • the integrated circuit or single-chip microcomputer of the toaster itself is damaged during use, after the preset baking time is reached during the baking process, the DC high or low level of the output will keep the electromagnet always in contact. In the state, even if the heating wire is energized for a long time, the lifting frame cannot be bounced, which not only causes the bread to be burnt, but also causes accidents such as fire.
  • the present invention provides a toaster having an automatic power-off protection function.
  • the technical scheme adopted by the utility model is: a toaster with automatic power-off protection function, and the structural features thereof include: a power supply circuit, a central processor control circuit and an electromagnet drive circuit, and a power supply and power supply circuit. Connect the power input end of the central processor controller circuit and the electromagnet drive circuit, rectify and regulate the AC power, and supply power to the central processor controller circuit and the electromagnet drive circuit. The control signal output end of the central processor control circuit is connected to the electromagnet.
  • the control input end of the driving circuit and the output control signal control the electromagnet driving circuit;
  • the control signal outputted by the central processing unit control circuit is an alternating current signal, and the alternating current signal is capacitively coupled by the electromagnet control circuit, and then the electromagnet is controlled by the rectifying and filtering circuit.
  • the central control circuit in the toaster of the automatic power-off protection function of the utility model can also set the longest delay power-off time, and after the set time, the central device stops outputting the control signal.
  • the invention has the following outstanding effects:
  • the utility model has an automatic power-off protection function in the toaster, which is safer than other similar products. If the central processing unit is damaged, the power can be automatically cut off; no matter what the toaster is. In the working state, if the switch does not pop up after the external factor is timed, the maximum delay power-off time programmed by the central processor is no control signal output, which effectively prevents accidents such as fires.
  • FIG. 1 is a schematic block diagram of an embodiment of the present invention.
  • FIG. 2 is a circuit schematic diagram of an embodiment of the present invention. Detailed ways
  • the five modules of the present embodiment are composed of a power supply circuit 1, a central processor control circuit 2, an electromagnet drive circuit 3, a KEY button circuit 4, and an LED display circuit 5.
  • the KEY button circuit 4 is composed of a KEY button and a potentiometer.
  • the KEY button inputs a control signal.
  • the CPU central controller can be an integrated circuit or a single chip microcomputer.
  • the EM78 P 156 E in this embodiment can output AC at the OUT terminal by programming it. Control signals, and set a maximum delay power down time, such as 10 minutes.
  • part A is the power supply circuit.
  • AC 1 2V is taken directly from the hot wire of the toaster and sent to the D l, D2, D3 and D4 bridge rectifier circuits through the S l and S2 self-resetting switches for rectification;
  • l, C l, D5 form a 12VDC voltage regulator filter circuit, which supplies power to the electromagnet L 1 ;
  • R2, R3, C2, C3, and D6 form a 5VDC voltage regulator filter circuit to supply power to the CPU ( U 1 ).
  • part B is the CPU control circuit.
  • R9, R6, R7, R8, VR 1, and C5 form a timing time adjustment circuit.
  • VR 1 the scheduled working time of the toaster can be adjusted.
  • R4 and C4 form the external clock circuit of the CPU;
  • R5 is the CPU power-on reset resistor.
  • part C is the electromagnet drive circuit
  • C6 is the so-called capacitor.
  • the rectifier circuit consisting of D10, D11 and C7 supplies power to the bases of the transistors Q1 and Q2.
  • the triode is turned on, and the electromagnet L1 There is a pressure drop at both ends to generate a magnetic force, and the self-resetting switch is sucked to make the toaster work.
  • the CPU (U1) controls the PA terminal to output an AC signal.
  • the coupling capacitor C6 After passing through the coupling capacitor C6, it passes through a rectifying and filtering circuit composed of D10, D11, and C7 to make the electromagnet work, and the heating wire heats and bakes the bread.
  • the baking time has passed the preset time of the timing adjustment circuit composed of R9, R6, R7, R8, VR1, and C5, the toaster is automatically powered off, and the lifting frame is reset.
  • the output signal cannot pass through the coupling capacitor C6 and the rectification filter circuit composed of D10, D11, and C7 to prevent accidents. And regardless of the working state, such as the external factor does not bounce after the timing time expires, the longest delay power-off time programmed by the CPU (U1), such as 10 minutes, the PA end There is no signal output, so that it has double insurance, which guarantees the absolute safety of the toaster.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Electric Stoves And Ranges (AREA)

Abstract

L'invention concerne un grille-pain muni d'une fonction de protection par arrêt automatique de l'alimentation. Le grille-pain comprend: une source d'énergie (1); un circuit de commande UCT (2) et un amplificateur d'électroaimant (3). L'extrémité de sortie de la source d'énergie (1) se raccorde à l'extrémité d'entrée du circuit de commande UCT (2) et à l'amplificateur d'électroaimant (3). Le circuit de commande UCT (2) émet un signal de commande servant à commander l'amplificateur d'électroaimant (3). Le signal de commande émanant du circuit de commande UCT (2) est un signal CA. Le signal CA est couplé par la capacité de l'amplificateur d'électroaimant pour commander l'électroaimant par l'intermédiaire d'un circuit filtrant et de redressement. La fonction de protection par arrêt automatique de l'alimentation du grille-pain peut empêcher la survenue d'un accident, tel qu'un incendie, etc.
PCT/CN2004/000922 2003-11-10 2004-08-10 Grille-pain muni d'une fonction de protection par arret automatique de l'alimentation WO2005044068A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200320117892.0 2003-11-10
CNU2003201178920U CN2664559Y (zh) 2003-11-10 2003-11-10 带自动断电保护功能的多士炉

Publications (1)

Publication Number Publication Date
WO2005044068A1 true WO2005044068A1 (fr) 2005-05-19

Family

ID=34347010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2004/000922 WO2005044068A1 (fr) 2003-11-10 2004-08-10 Grille-pain muni d'une fonction de protection par arret automatique de l'alimentation

Country Status (2)

Country Link
CN (1) CN2664559Y (fr)
WO (1) WO2005044068A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2438817A1 (fr) * 2009-06-02 2012-04-11 Crastal Technology (Shenzhen) Co., Ltd. Dispositif de commande de couvercle de grille-pain à fonction de protection contre l'incendie et procédé pour son application

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102755121B (zh) * 2012-07-24 2015-02-18 深圳市北鼎晶辉科技股份有限公司 烤面包炉电子防卡保护装置
CN103412504A (zh) * 2013-08-07 2013-11-27 天津市中环三峰电子有限公司 一种数字定时控制电路
CN104665627B (zh) * 2013-12-02 2017-09-26 广东德豪润达电气股份有限公司 多士炉
JP2015159908A (ja) * 2014-02-26 2015-09-07 ツインバード工業株式会社 トースター
CN217792636U (zh) * 2022-06-30 2022-11-15 宁波兰花电器制造有限公司 一键重加热电路和三明治机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956978A (en) * 1973-06-29 1976-05-18 Best Products Limited Electric toasters
DE4142838A1 (de) * 1991-01-03 1992-07-09 Vaillant Joh Gmbh & Co Sicherheitseinrichtung
CN2262664Y (zh) * 1996-01-12 1997-09-17 傅坚台 流体燃料之燃烧安全自动控制装置
CN2393246Y (zh) * 1999-09-29 2000-08-23 深圳晶辉电器有限公司 多士炉滑架卡死自动复位断电保护机构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956978A (en) * 1973-06-29 1976-05-18 Best Products Limited Electric toasters
DE4142838A1 (de) * 1991-01-03 1992-07-09 Vaillant Joh Gmbh & Co Sicherheitseinrichtung
CN2262664Y (zh) * 1996-01-12 1997-09-17 傅坚台 流体燃料之燃烧安全自动控制装置
CN2393246Y (zh) * 1999-09-29 2000-08-23 深圳晶辉电器有限公司 多士炉滑架卡死自动复位断电保护机构

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2438817A1 (fr) * 2009-06-02 2012-04-11 Crastal Technology (Shenzhen) Co., Ltd. Dispositif de commande de couvercle de grille-pain à fonction de protection contre l'incendie et procédé pour son application
EP2438817A4 (fr) * 2009-06-02 2012-11-21 Crastal Tech Shenzhen Co Ltd Dispositif de commande de couvercle de grille-pain à fonction de protection contre l'incendie et procédé pour son application

Also Published As

Publication number Publication date
CN2664559Y (zh) 2004-12-22

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