WO2014166098A1 - Tige de détection de température électronique - Google Patents

Tige de détection de température électronique Download PDF

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Publication number
WO2014166098A1
WO2014166098A1 PCT/CN2013/074121 CN2013074121W WO2014166098A1 WO 2014166098 A1 WO2014166098 A1 WO 2014166098A1 CN 2013074121 W CN2013074121 W CN 2013074121W WO 2014166098 A1 WO2014166098 A1 WO 2014166098A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
heater
probe
sensing rod
circuit board
Prior art date
Application number
PCT/CN2013/074121
Other languages
English (en)
Chinese (zh)
Inventor
郑汉辉
李志强
张显见
Original Assignee
深圳市润唐智能生活电器有限公司
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 深圳市润唐智能生活电器有限公司 filed Critical 深圳市润唐智能生活电器有限公司
Priority to PCT/CN2013/074121 priority Critical patent/WO2014166098A1/fr
Publication of WO2014166098A1 publication Critical patent/WO2014166098A1/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
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • 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
    • A47J27/00—Cooking-vessels
    • A47J27/004—Cooking-vessels with integral electrical heating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
    • H02H5/047—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature using a temperature responsive switch
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
    • 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
    • A47J2202/00—Devices having temperature indicating means

Definitions

  • the present invention relates to an electrically heated cooking appliance, and more particularly to an improvement of an electronic temperature sensing rod of an electrically heated cooking appliance.
  • Many electric heating cooking appliances are provided with a plug-in type electronic temperature sensing rod for detecting and regulating the temperature of the pot body of the electric heating cooking appliance.
  • the electronic temperature sensing rod detects the temperature of the pot body through a probe disposed at the bottom of the pot body (a temperature sensor is disposed in the probe), and the control circuit inside the electronic temperature sensing rod is controlled at the bottom of the pot body according to the temperature detected by the probe.
  • the conduction and shutdown of the heater and the heating power regulate the temperature of the pot.
  • the control circuit controls the heater to be in a high-power working state, at which time the heater heats the pot body; when the temperature sensor detects the temperature of the pot body When the temperature is higher than the preset temperature, the control circuit turns off the heater, and the heater stops heating the pot; or when the temperature sensor detects that the temperature of the pot is higher than the preset temperature, the control circuit controls the heater to be low.
  • the power working state at this time, the heater heats the pot body.
  • the control circuit When the temperature sensor fails to accurately detect the temperature, if the temperature of the pot is higher than the preset temperature and the temperature detected by the temperature sensor is lower than the preset temperature, the control circuit will continuously control the heater to operate in the high power state. At this time, it is likely to cause a safety accident.
  • the object of the present invention is to provide an electronic temperature sensing rod, which aims to solve the problem that an electronic temperature sensing rod in the prior art is likely to cause a safety accident when the temperature sensor fails to accurately detect the temperature.
  • An electronic temperature sensing rod is inserted into a pot body provided with a heater
  • the electronic temperature sensing bar includes a housing, a circuit board disposed in the housing and electrically connected to the heater, and a probe connected to the housing to detect the temperature of the pot body;
  • a temperature sensor electrically connected to the circuit board is disposed in the probe;
  • the probe is further provided with a thermal circuit breaker electrically connected to the circuit board and automatically disconnecting the power source of the heater when the temperature of the pot exceeds a preset value.
  • the electronic temperature sensing rod provided by the invention can not accurately detect the temperature when the temperature sensor fails, such as when the temperature of the pot body is higher than the preset temperature and the temperature detected by the temperature sensor is lower than the preset temperature, and the circuit
  • the thermal circuit breaker that is electrically connected to the board will disconnect the power supply of the heater, thus avoiding the safety accident caused by the continuous operation of the heater in the high power state.
  • FIG. 1 is a schematic perspective structural view of an electric heating cooking appliance according to an embodiment of the present invention.
  • FIG. 2 is a schematic exploded view showing the structure of an electric heating cooking appliance according to an embodiment of the present invention
  • FIG. 3 is a schematic exploded view showing the structure of an electronic temperature sensing rod according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a circuit of an electric heating cooking appliance according to an embodiment of the present invention.
  • FIG. 1 to 3 a schematic perspective view of an electric heating cooking appliance according to an embodiment of the present invention, a structural exploded view of an electric heating cooking appliance, and a structural exploded view of an electronic temperature sensing rod.
  • An electronic temperature sensing rod is inserted into the pot body 1 provided with the heater 11;
  • the electronic temperature sensing rod 2 includes a housing 21 disposed in the housing 21 and electrically connected to the heater 11 a circuit board 22, a probe 26 connected to the housing 21 and detecting the temperature of the pot body 1; a temperature sensor 23 electrically connected to the circuit board 22 is disposed in the probe 26; Also provided in the rod 26 is a thermal circuit breaker 24 electrically connected to the circuit board 22 and automatically disconnecting the power source of the heater 11 when the temperature of the pot body 1 exceeds a preset value.
  • the thermal breaker 24 is a flea.
  • the electronic temperature sensing rod provided by the invention can not accurately detect the temperature when the temperature sensor 23 fails, for example, if the temperature of the pot body 1 is higher than the preset temperature and the temperature detected by the temperature sensor 23 is lower than the preset temperature,
  • the thermal circuit breaker 24 electrically connected to the circuit board 22 will disconnect the power source of the heater 11 to avoid a safety accident caused by the heater 11 continuing to operate in a high power state.
  • the thermal circuit breaker 24 also fails.
  • the probe 26 is further provided with an electrical connection with the circuit board 22, and automatically disconnects when the temperature of the pot body 1 exceeds a preset value.
  • a thermal fuse 25 that develops the power source of the heater 11. When the temperature of the thermal fuse 25 exceeds a certain value, that is, the characteristic of the fuse, the safety accident caused by the heater 11 continuing to operate in a high power state can be further prevented.
  • the thermal fuse 25 is a thermal fuse.
  • the probe 26 is further provided with a bracket 261 fixed to the probe 26; the temperature sensor 23, the thermal breaker 24, and the thermal fuse 25 are fixed to the bracket 261.
  • FIG. 4 is a schematic view showing the circuit structure of an electric heating cooking appliance according to an embodiment of the present invention.
  • the circuit board 22 is provided with a control circuit 221, a relay 222, and a thyristor 223; the power input terminals of the relay 222 and the thyristor 223 are connected to the live line L, and the output end is connected to the thermal circuit breaker 24; The input end, the output end of the thermal breaker 24 is connected to the first end of the heater 11 through the thermal fuse 25, the second end of the heater 11 is connected to the neutral line N; the temperature detecting end of the control circuit 221 is connected to the temperature sensor 23, the control end The relay 222 and the controlled end of the thyristor 223 are respectively connected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Power Engineering (AREA)
  • Cookers (AREA)

Abstract

Cette invention concerne une tige de détection de température électronique (2) reliée par insertion à un corps de cuve (1) doté d'un élément chauffant (11). Ladite tige de détection de température électronique comprend un boîtier (21), une carte de circuit imprimé (22) disposée dans le boîtier et en contact électrique avec l'élément chauffant et une sonde (25) reliée au boîtier et détectant la température du corps de cuve. Un capteur de température (23) en contact électrique avec la carte de circuit imprimé est disposé dans la sonde. La sonde est en outre dotée d'un disjoncteur thermique (24) qui est en contact électrique avec la carte de circuit imprimé et qui interrompt automatiquement une alimentation électrique de l'élément chauffant quand la température du corps de cuve dépasse une valeur prédéterminée. Quand le capteur de température est défectueux et ne peut pas détecter la température de manière précise et si la température du corps de cuve est supérieure à la température prédéterminée tandis que la température détectée par le capteur de température est inférieure à la température prédéterminée, le disjoncteur thermique qui est en contact avec la carte de circuit imprimé interrompt l'alimentation électrique de l'élément chauffant de façon à éviter un incident mettant en cause la sécurité qui pourrait être provoqué par le fonctionnement continu de l'élément chauffant en mode haute puissance.
PCT/CN2013/074121 2013-04-12 2013-04-12 Tige de détection de température électronique WO2014166098A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/074121 WO2014166098A1 (fr) 2013-04-12 2013-04-12 Tige de détection de température électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/074121 WO2014166098A1 (fr) 2013-04-12 2013-04-12 Tige de détection de température électronique

Publications (1)

Publication Number Publication Date
WO2014166098A1 true WO2014166098A1 (fr) 2014-10-16

Family

ID=51688870

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/074121 WO2014166098A1 (fr) 2013-04-12 2013-04-12 Tige de détection de température électronique

Country Status (1)

Country Link
WO (1) WO2014166098A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107024945A (zh) * 2017-06-01 2017-08-08 中山市勤峰电器有限公司秋浦分公司 一种电子式调温棒

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2579030Y (zh) * 2002-05-28 2003-10-08 郑健生 一种电子温控插头
CN101294851A (zh) * 2007-04-27 2008-10-29 厦门灿坤实业股份有限公司 电子感温棒
CN202257305U (zh) * 2011-10-31 2012-05-30 广东伊立浦电器股份有限公司 ***式控温装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2579030Y (zh) * 2002-05-28 2003-10-08 郑健生 一种电子温控插头
CN101294851A (zh) * 2007-04-27 2008-10-29 厦门灿坤实业股份有限公司 电子感温棒
CN202257305U (zh) * 2011-10-31 2012-05-30 广东伊立浦电器股份有限公司 ***式控温装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107024945A (zh) * 2017-06-01 2017-08-08 中山市勤峰电器有限公司秋浦分公司 一种电子式调温棒

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