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CN-224218528-U - Heating control circuit and electric appliance

CN224218528UCN 224218528 UCN224218528 UCN 224218528UCN-224218528-U

Abstract

The utility model discloses a heating control circuit and an electric appliance, wherein the heating control circuit comprises a control module, a first switch module, a second switch module, a third switch module, a heating element RE1 and a heating element RE2, the control module is connected with the other end of a power supply and used for detecting that input voltage is first voltage or second voltage, the first voltage is smaller than the second voltage, the control module can control the heating element RE1 to obtain electricity through the first switch module, the second switch module and the third switch module when the first voltage is detected or control the heating element RE1 and the heating element RE2 to obtain electricity through the first switch module, the second switch module and the third switch module when the second voltage is detected, and the electric appliance can adapt to two voltage levels through the circuit, so that the application range of the electric appliance is improved, and the use requirement is met.

Inventors

  • AI YAOPING
  • DENG SUIWEN
  • SONG ZHENYU
  • AI CHENG
  • GAO JIE
  • QIN ZHIQIANG

Assignees

  • 中山市大毅电器科技有限公司

Dates

Publication Date
20260508
Application Date
20250508

Claims (6)

  1. 1. The heating control circuit is characterized by comprising a control module (10), a first switch module (20), a second switch module (30), a third switch module (40), a heating element RE1 and a heating element RE2; The control end of the first switch module (20) is connected with the control module (10), the first end is respectively connected with one end of a power supply and one end of a heating element RE2, and the second end is respectively connected with one end of a heating element RE1 and the first end of the third switch module (40); The control end of the second switch module (30) is connected with the control module (10), the first end is respectively connected with the other end of the heating element RE1 and the other end of the heating element RE2, and the second end is connected with the other end of the power supply; The control end of the third switch module (40) is connected with the control module (10), and the second end of the third switch module is connected with the other end of the power supply; The control module (10) is connected with the other end of the power supply and is used for detecting whether the input voltage is a first voltage or a second voltage, and the first voltage is smaller than the second voltage; The control module (10) can control the heating element RE1 to be powered through the first switch module (20), the second switch module (30) and the third switch module (40) when the first voltage is detected, or control the heating element RE1 and the heating element RE2 to be powered simultaneously through the first switch module (20), the second switch module (30) and the third switch module (40) when the second voltage is detected.
  2. 2. A heating control circuit according to claim 1, wherein the first switch module (20) comprises a resistor R1, a triode Q1 and a relay K1, wherein a base electrode of the triode Q1 is connected with the control module (10) through the resistor R1, a collector electrode of the triode Q1 is connected with one end of a coil of the relay K1, an emitter electrode of the triode Q1 is connected with a grounding end, the other end of the coil of the relay K1 is connected with a power VCC, one end of a contact of the relay K1 is respectively connected with one end of the power and one end of a heating element RE2, and the other end of the contact of the relay K1 is respectively connected with one end of the heating element RE1 and the first end of the third switch module (40).
  3. 3. A heating control circuit according to claim 1, wherein the second switch module (30) comprises a resistor R2, a triode Q2 and a relay K2, wherein a base electrode of the triode Q2 is connected with the control module (10) through the resistor R2, a collector electrode of the triode Q2 is connected with one end of a coil of the relay K2, an emitter electrode of the triode Q2 is connected with a grounding end, the other end of the coil of the relay K2 is connected with a power supply VCC, one end of a contact of the relay K2 is respectively connected with the other end of a heating element RE1 and the other end of the heating element RE2, and the other end of a contact of the relay K2 is connected with the other end of the power supply.
  4. 4. A heating control circuit according to claim 1, wherein the third switch module (40) comprises a resistor R3, a triode Q3 and a relay K3, wherein a base electrode of the triode Q3 is connected with the control module (10) through the resistor R3, a collector electrode of the triode Q3 is connected with one end of a coil of the relay K3, an emitter electrode of the triode Q3 is connected with a grounding end, the other end of the coil of the relay K3 is connected with a power supply VCC, one end of a contact of the relay K3 is respectively connected with the second end of the first switch module (20) and one end of a heating element RE1, and the other end of the contact of the relay K3 is connected with the other end of the power supply.
  5. 5. A heating control circuit according to claim 1 wherein the first voltage is 100V and the second voltage is 220V.
  6. 6. An electric appliance characterized by comprising the heating control circuit according to any one of claims 1 to 5.

Description

Heating control circuit and electric appliance Technical Field The utility model relates to the field of electric appliances, in particular to a heating control circuit and an electric appliance. Background In many electric appliances, a heating body is used for heating, such as a water dispenser, a kettle and the like, but the working voltages of the electric appliances are single, the electric appliance with the working voltage of 220V can only be connected with the voltage of 220V, the electric appliance with the working voltage of 100V can only be connected with the voltage of 100V, and the electric appliance can not meet the use requirements under different voltages, so a heating control circuit and the electric appliance are needed to solve the problems. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a heating control circuit and an electric appliance. The technical scheme adopted by the embodiment of the utility model for solving the technical problems is that the heating control circuit comprises a control module, a first switch module, a second switch module, a third switch module, a heating element RE1 and a heating element RE2; The control end of the first switch module is connected with the control module, the first end is respectively connected with one end of the power supply and one end of the heating element RE2, and the second end is respectively connected with one end of the heating element RE1 and the first end of the third switch module; The control end of the second switch module is connected with the control module, the first end is respectively connected with the other end of the heating element RE1 and the other end of the heating element RE2, and the second end is connected with the other end of the power supply; the control end of the third switch module is connected with the control module, and the second end of the third switch module is connected with the other end of the power supply; The control module is connected with the other end of the power supply and is used for detecting whether the input voltage is a first voltage or a second voltage, and the first voltage is smaller than the second voltage; The control module can control the heating element RE1 to obtain electricity through the first switch module, the second switch module and the third switch module when the first voltage is detected, or control the heating element RE1 and the heating element RE2 to obtain electricity simultaneously through the first switch module, the second switch module and the third switch module when the second voltage is detected. As one of the preferred embodiments of the present utility model, the first switch module includes a resistor R1, a triode Q1 and a relay K1, the base electrode of the triode Q1 is connected with the control module through the resistor R1, the collector electrode of the triode Q1 is connected with one end of the coil of the relay K1, the emitter electrode of the triode Q1 is connected with the ground terminal, the other end of the coil of the relay K1 is connected with the power VCC, one end of the contact of the relay K1 is connected with one end of the power and one end of the heating element RE2 respectively, and the other end of the contact of the relay K1 is connected with one end of the heating element RE1 and the first end of the third switch module respectively. As one of the preferred embodiments of the present utility model, the second switch module includes a resistor R2, a triode Q2 and a relay K2, the base electrode of the triode Q2 is connected with the control module through the resistor R2, the collector electrode of the triode Q2 is connected with one end of the coil of the relay K2, the emitter electrode of the triode Q2 is connected with the ground terminal, the other end of the coil of the relay K2 is connected with the power VCC, one end of the contact of the relay K2 is connected with the other end of the heating element RE1 and the other end of the heating element RE2 respectively, and the other end of the contact of the relay K2 is connected with the other end of the power. As one of the preferred embodiments of the present utility model, the third switch module includes a resistor R3, a triode Q3 and a relay K3, the base electrode of the triode Q3 is connected with the control module through the resistor R3, the collector electrode of the triode Q3 is connected with one end of the coil of the relay K3, the emitter electrode of the triode Q3 is connected with the ground terminal, the other end of the coil of the relay K3 is connected with the power VCC, one end of the contact of the relay K3 is connected with the second end of the first switch module and one end of the heating element RE1, respectively, and the other end of the contact of the relay K3 is connected with the other end of the power. As one of the preferred