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WO2007118427A1 - Contrôleur électrique pour contenant chauffant un liquide - Google Patents

Contrôleur électrique pour contenant chauffant un liquide Download PDF

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Publication number
WO2007118427A1
WO2007118427A1 PCT/CN2007/001224 CN2007001224W WO2007118427A1 WO 2007118427 A1 WO2007118427 A1 WO 2007118427A1 CN 2007001224 W CN2007001224 W CN 2007001224W WO 2007118427 A1 WO2007118427 A1 WO 2007118427A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
water temperature
electronic controller
temperature
resistor
Prior art date
Application number
PCT/CN2007/001224
Other languages
English (en)
Chinese (zh)
Inventor
Yuhang Guo
Guanghong Lao
Original Assignee
Eternal (Guangdong) Electric Holding 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 Eternal (Guangdong) Electric Holding Ltd. filed Critical Eternal (Guangdong) Electric Holding Ltd.
Publication of WO2007118427A1 publication Critical patent/WO2007118427A1/fr

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1917—Control of temperature characterised by the use of electric means using digital means

Definitions

  • the utility model relates to an electronic controller for a liquid heating container, in particular to an electronic controller suitable for a liquid heating container such as a hot water tank or a kettle, which can arbitrarily select a heating temperature and display a water temperature state.
  • the existing fast electric kettle thermostats mostly use a mechanical thermostat.
  • the British patent application GB2331848 discloses an electric switch comprising a contact spring disposed in an eccentric position, the contact spring having three components extending from the cross member.
  • the rotation of the operating rod causes the rotation of the eccentric spring member to move the contact of the component to achieve the contact with the power supply connector.
  • Disconnected and powered off Such a thermostat has a relatively simple function, and can only boil water, does not set the heating temperature and the function of indicating the water temperature state, and the products with stable quality are mostly dependent on imports and are expensive.
  • the present invention provides an electronic controller for a liquid heating vessel that can arbitrarily select a heating temperature and a display water temperature state.
  • the technical scheme adopted by the utility model is an electronic controller for a liquid heating container, which comprises a DC power supply for providing a DC working voltage, a start-up and steam temperature control circuit, a dry-burning temperature control circuit, and a waterless dry control control detection.
  • the circuit and the relay switch circuit for controlling the operation of the heating tube are characterized in that the electronic controller further comprises a water temperature temperature control circuit and a water temperature state indicating circuit which can arbitrarily select the heating temperature, wherein the water temperature temperature control circuit comprises a resistor R3 , R5, heating temperature selection potentiometer RT, and comparator U1 inside the system control integrated circuit; resistor R3, R5, water temperature selection potentiometer RT connected in series, one end is connected to VDD, the other end is grounded; heating temperature selection potentiometer RT The contact is connected to the positive phase input terminal of the comparator U1; the water temperature state indicating circuit comprises the resistors R10, R11, R16, R17, the three-pole tube Ql, Q2, the light-emitting diode LEM, the LED2, the comparator U2, or the gate U5, U10 and the NOT gate Ull; one end of the resistor RIO is connected to the non-inverting input terminal of the comparator U2, and the other end is connected to VDD;
  • the utility model is provided with a water temperature temperature control circuit and a water temperature state indicating circuit through the electronic controller, so that the electronic controller has the function of setting the heating temperature and indicating the water temperature state, and has the function richness and cost compared with the mechanical temperature controller. Low cost, reasonable structure, convenient use, and more humanized control.
  • FIG. 1 is a block diagram of the present invention
  • FIG. 2 is a schematic diagram of the present invention. detailed description
  • the electronic controller of the liquid heating container of the present invention comprises: a DC power supply for supplying a DC working voltage to an electronic controller, a startup and steam temperature control circuit 2, a water temperature control circuit 3, and a dry burning.
  • the temperature control circuit 4 the waterless dry control control detecting circuit 5, the water temperature state indicating circuit 6, and the relay switching circuit 7 for controlling the operation of the heat generating tube 8.
  • the DC power supply 1 includes a rectifier circuit, a shunt resistor and a two-stage voltage regulator filter circuit, and the obtained DC power is supplied to the electronic controller.
  • the start-up and steam temperature control circuit 2 includes R12, R13, R14, R15, R22, C5, D3, SI and a comparator U12 inside the system control integrated circuit; one end of the resistor R12 is connected to the inverting input of U12, and the other end is connected VDD ; One end of the resistor R13 is connected to the positive phase input of U12, and the other end is grounded; one end of the resistor R14 is connected to the positive phase input of U12, and the other end is connected to the output terminal of U12; the resistor R15 is connected in series with the tact switch S1.
  • VDD the other end is connected to the non-inverting input of U12; one end of the resistor R22 is connected to the inverting input of U12, and the other end is grounded; the positive terminal of the capacitor C5 is connected to the non-inverting input terminal of U12, and the other end is grounded; The positive terminal of D3 is connected to the non-inverting input terminal of U12, and the other end is grounded.
  • the water temperature temperature control circuit 3 comprises resistors R3, R5, a heating temperature selection potentiometer RT, and a comparator m inside the system control integrated circuit; the resistors R3, R5, the water temperature selection potentiometer RT are connected in series, one end is connected to VDD, and the other end is grounded; The moving contact of the heating temperature selection potentiometer RT is connected to the positive phase input of the comparator U1.
  • the dry-burning temperature control circuit 4 includes R1, R4, R6, C2, D1 and a comparator U3 inside the system control integrated circuit; one end of the resistor R1 is connected to the inverting input terminal of U3, and the other end is connected to VDD; the resistor R4 is the end Connected to VDD, the other end is connected to the positive input terminal of U3; one end of the resistor R6 is connected to the positive phase input terminal of U3, and the other end is connected to the IE phase input terminal of U4; the positive terminal of the diode D1 is connected to the inverting input terminal of U3 The other end is ground; C2—terminates the inverting input of U3, and one end is grounded.
  • the non-drying control detection circuit 5 detects the light-sensitive switch A with a light blocking plug, and the detecting circuit 6 includes a photosensitive switch A and a comparator U4 inside the system control integrated circuit.
  • the waterless dry control control detecting circuit 5 can also be detected by the magnetic sensitive switch B of the magnet float.
  • the detecting circuit 6 includes the resistors R8, R9, Rg, the light emitting diode LED3 and the comparator I inside the system control integrated circuit; the resistor R8 Connected to the positive terminal of LED3 and connected to VDD at one end. The negative terminal of LED3 is grounded.
  • One end of resistor R9 is connected to the inverting input of U4, and the other end is connected to VDD.
  • One end of resistor Rg is connected to the inverting input of U9, and the other end is connected. Then ground.
  • the water temperature state indicating circuit 6 includes resistors R10, Rl l, R16, R17, three-pole tubes Q1, Q2, light-emitting diodes LED1, LED2, comparator U2, or gates U5, U10 and NOT gate U1 1; one end of resistor R10 is connected to the comparator The non-inverting input terminal of U2 is connected to VDD at the other end; one end of the resistor R1 1 is connected to the non-inverting input terminal of the comparator U2, and the other end thereof is grounded; one end of the resistor R16 is connected to VCC, and the other end is connected to the positive pole of the LED1; One end of the resistor R17 is connected to VCC, and the other end is connected to the positive pole of the LED2; the base of the transistor Q1 is connected to the output end of the gate U10, the collector is connected to the cathode of the LED1, and the emitter is grounded; the base of the transistor Q2 is connected to the gate U11 At the output end, the collector is connected to the
  • LED1 is red, LED2 is blue; when the water temperature is higher than the heating temperature set by potentiometer RT, LED1 is lit, LED2 is not lit; when the water temperature is lower than potentiometer RT When the temperature is heated, the LED2 of the LED is lit, and the LED1 of the LED is not lit; when the water temperature is higher than 95 °C, the LEDs LED1 and LED2 are lit.
  • the relay switch circuit 7 for controlling the operation of the heating tube 8 includes relays K1, Q3, D4, and R23; one end of the K1 coil is connected to VCC, and the other end is connected to the collector of Q3; the anode of D4 is connected to VCC, and the other end is connected to Q3. Collector; R23 has one end connected to the output end of U12, and the other end is connected to the base of Q3; the emitter of Q3 is grounded.
  • the voltage is stepped down by the capacitor and rectified and stepped down; respectively, the output DC I2V and the DC 5.
  • the system control integrated circuit When the system control integrated circuit obtains a stable voltage from the power supply, the circuit enters a standby state, and the system control integrated circuit compares the data obtained by the water temperature detecting diode D2 with the data of the water temperature selection potentiometer RT, and selects the potentiometer when the liquid temperature in the container is higher than the water temperature.
  • the system control IC When the RT setting temperature is low, the system control IC outputs a high level to Q2 to push the LED 2 LED to illuminate.
  • the system control integrated circuit When the temperature of the liquid in the container is higher than the temperature set by the water temperature selection potentiometer RT, the system control integrated circuit outputs a high level to Ql, Q2 respectively to push the light emitting diode LED1. LED2 lights up.
  • the system control integrated circuit When the temperature of the liquid in the container is lower than the temperature set by the water temperature selection potentiometer RT, the switch S1 is pressed, the system control integrated circuit outputs a high level to Q3 to push the relay K1 to pull, the heating tube 8 works, and at the same time pushes the LED 1 to light up. , LED2 goes out.
  • the system control integrated circuit When the liquid temperature in the container is heated to the water temperature selection potentiometer RT set temperature, the system control integrated circuit outputs a low level to Q3 to turn off the relay K1 according to the data obtained by the water temperature detecting diode D2, and the circuit returns to the standby state.
  • the water temperature selection potentiometer RT setting temperature can be adjusted to above 10CTC, press the switch S1, the system control integrated circuit outputs a high level to the Q3 push relay K1 to pull in, the heating plate 10 works, and simultaneously pushes LED1 is lit and LED2 is off.
  • the system control IC outputs a low level to Q3 to disconnect the relay K1 according to the data obtained by the steam temperature detecting diode D3, and the circuit returns to the standby state.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Cookers (AREA)
  • Control Of Combustion (AREA)

Abstract

Contrôleur électrique pour contenant chauffant un liquide qui comprend une alimentation C.C. (1) fournissant une tension C.C. de fonctionnement, un circuit de démarrage et de contrôle de température de vapeur (2), un circuit de contrôle de température permettant d'éviter de chauffer à sec (sans eau) (4), un circuit détecteur de commande (5) pour éviter de chauffer sans eau, et un circuit commutateur relais (7) contrôlant le fonctionnement du tube calorifique (8). Le contrôleur comprend aussi un circuit de contrôle de température d'eau (3) dans lequel la température de chauffe peut être choisie librement, et un circuit d'indication d'état de température.
PCT/CN2007/001224 2006-04-17 2007-04-16 Contrôleur électrique pour contenant chauffant un liquide WO2007118427A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2006200578239U CN2901389Y (zh) 2006-04-17 2006-04-17 一种液体加热容器的电子控制器
CN200620057823.9 2006-04-17

Publications (1)

Publication Number Publication Date
WO2007118427A1 true WO2007118427A1 (fr) 2007-10-25

Family

ID=38085553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001224 WO2007118427A1 (fr) 2006-04-17 2007-04-16 Contrôleur électrique pour contenant chauffant un liquide

Country Status (2)

Country Link
CN (1) CN2901389Y (fr)
WO (1) WO2007118427A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113647807A (zh) * 2021-10-10 2021-11-16 安徽艾宁机电设备有限公司 一种蒸箱控制电路

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209232A (en) * 1987-08-28 1989-05-04 Powerbase Electronic Systems L Temperature control
JPH0332616A (ja) * 1989-06-29 1991-02-13 Matsushita Electric Ind Co Ltd コーヒ抽出器
JP2003125931A (ja) * 2001-10-23 2003-05-07 Tiger Vacuum Bottle Co Ltd 電気ポット
CN2638118Y (zh) * 2003-07-03 2004-09-01 中山市阿帕其电器有限公司 一种电热开水瓶的控制电路
CN2731510Y (zh) * 2004-08-30 2005-10-05 广东亿龙电器制品有限公司 一种电子式温控器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209232A (en) * 1987-08-28 1989-05-04 Powerbase Electronic Systems L Temperature control
JPH0332616A (ja) * 1989-06-29 1991-02-13 Matsushita Electric Ind Co Ltd コーヒ抽出器
JP2003125931A (ja) * 2001-10-23 2003-05-07 Tiger Vacuum Bottle Co Ltd 電気ポット
CN2638118Y (zh) * 2003-07-03 2004-09-01 中山市阿帕其电器有限公司 一种电热开水瓶的控制电路
CN2731510Y (zh) * 2004-08-30 2005-10-05 广东亿龙电器制品有限公司 一种电子式温控器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113647807A (zh) * 2021-10-10 2021-11-16 安徽艾宁机电设备有限公司 一种蒸箱控制电路

Also Published As

Publication number Publication date
CN2901389Y (zh) 2007-05-16

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