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Electrothermal equipment and voltage detection method

A voltage detection method and electrical technology, which are applied in the direction of using electric mode for temperature control, auxiliary controller with auxiliary heating device, heating device, etc., can solve the problems of deviation, can not accurately reflect the real voltage, etc., and achieve a simple structure. , The effect of eliminating external interference and facilitating manufacture and processing

Inactive Publication Date: 2014-08-27
MIDEA GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the calculation of the voltage value of the electric heating appliance through the water temperature has a large deviation and cannot accurately reflect the real voltage.

Method used

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  • Electrothermal equipment and voltage detection method
  • Electrothermal equipment and voltage detection method
  • Electrothermal equipment and voltage detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 2 As shown, the voltage detection method of the electric heating appliance according to the present invention comprises the following steps:

[0054] Step S1, turn on the electric heater to make the heater 10 generate heat with a certain power, and the main control board controls the timer to start timing.

[0055] Step S2 , when the heating time of the heater 10 reaches t0 , the temperature T0 of the heater 10 is directly detected by the temperature sensor 20 .

[0056] Step S3, after the temperature T0 is fed back to the main control board, the main control board compares the temperature T0 with the temperature preset value corresponding to the current power of the heater 10 according to the current working power of the heater 10 to calculate the current voltage value of the electric heater.

[0057] Specifically, the preset temperature values ​​include T1 and T2. If T0T2, the voltage value of the electric heater is in the range of V3.

[0058] The ...

Embodiment 2

[0065] Such as image 3 As shown, the voltage detection method of the electric heating appliance according to the present invention comprises the following steps:

[0066] Step S1, turn on the electric heater to make the heater 10 generate heat with a certain power.

[0067] Step S2, when the temperature of the heater 10 reaches the temperature preset value T4, the main control board controls the counter to start timing.

[0068] Step S3, when the temperature of the heater 10 continues to rise and reaches the preset temperature T5, the main control board controls the counter to stop counting, and calculates the time t1 required for the temperature of the heater 10 to reach T5 from T4.

[0069] Step 4. Comparing t1 with the time preset value corresponding to the current power of the heater to calculate the current voltage value of the heating appliance.

[0070] Specifically, the preset time values ​​include t2, t3 and t4. If t1≤t2, the voltage value of the electric heater i...

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Abstract

The invention brings forward electrothermal equipment and its voltage detection method. The voltage detection method comprises the following steps: Step 1, turning on the electrothermal equipment to make a heater to give out heat and beginning reckoning by time; Step 2, detecting temperature T0 of the heater when heating time reaches t0; and Step 3, comparing T0 with a temperature preset value corresponding to current power of the heater to calculate a voltage value of the electrothermal equipment. Thus, by the voltage detection method of the electrothermal equipment provided by the embodiment of the invention, the voltage value of the electrothermal equipment is accurately calculated by directly detecting temperature changes of the heater in unit time. Thus, it is ensured that the electrothermal equipment can automatically adjust the mode of heating under the working condition of unsteady voltage.

Description

technical field [0001] The invention relates to the field of electric heating appliances, in particular to an electric heating appliance and a voltage detection method thereof. Background technique [0002] An electric heating appliance is an electrical appliance that raises the temperature by heating an electric heating element, such as an electric steamer, an electric frying machine or an electric rice cooker. [0003] In electric heating appliances, the voltage fluctuation of the power grid has a great impact on its normal operation, so it is necessary to consider the identification of voltage in product design and make special treatment for different voltages. [0004] For example, when the electric heater detects that the current voltage is too low, the food that can be cooked in the rice cooker in 30 minutes will be automatically set to 40 minutes at this time, and the heat required for cooking the food can be guaranteed by extending the heating time. [0005] In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/30A47J36/24
Inventor 张永亮麻百忠房振雷俊
Owner MIDEA GRP CO LTD
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