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PTC heating device and control method thereof

A technology of a heating device and a control method, which is applied in the direction of using feedback control, ohmic resistance heating components, etc., can solve the problems of high power consumption, consumption, and inability to adjust power according to needs, so as to achieve flexible operation, reduce power consumption, and improve room The effect of comfort

Active Publication Date: 2012-07-04
MIDEA GRP CO LTD
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Problems solved by technology

[0003] Judging from the current products on the market that use PTC as the heating material, PTC electric heaters are fixedly installed, and their on-off is controlled by relays, but the power cannot be adjusted according to needs. Basically, they work in a high-load heating state for a long time, and , because its full power operation will consume more power

Method used

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  • PTC heating device and control method thereof
  • PTC heating device and control method thereof
  • PTC heating device and control method thereof

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] see Figure 1-Figure 5 , the PTC heating device includes a PTC electric heater 1, a stepper motor and a drive mechanism for driving the PTC electric heater 1 to rotate around its axis, a current transformer for detecting the loop current of the PTC electric heater 1, and a circuit transformer with a calculation , comparison and control functions of the main chip, the main chip is connected with the current transformer and the stepping motor respectively. Among them, the main chip is the controller, the current transformer is the detection conversion element, and the PTC electric heater is the controlled object.

[0027] The control method of the PTC heating device comprises the following steps:

[0028] In the first step, the user sets the required electric auxiliary heating power value Ps through the main chip;

[0029] The second step is to ...

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Abstract

The invention relates to a PTC heating device and a method for controlling the PTC heating device. The PTC heating device comprises a PTC electric heater, a stepping motor, a driving mechanism, a current transformer and a main chip. The stepping motor and the driving mechanism are used for driving the PTC electric heater to rotate around the axis thereof; the current transformer is used for detecting the loop current of the PTC electric heater; and the main chip has calculating, comparing and controlling functions and is connected with the current transformer and the stepping motor in sequence. The control of the PTC heating device adopts the automatic-detection fed-back current closed-loop control. The process for controlling the PTC heating device is the automatic cycling process. The included angle of the controlled object which is the PTC heating device and the air flowing direction can be amended continuously according to the set value of the user so that the heat radiating statecan be changed and hereby the surface temperature of a PTC plate can be changed. Due to the positive temperature coefficient characteristic of the PTC heating device, the resistance of the PTC heating device can be changed, the loop current can be changed, and the hereby power can be changed. The PTC heating device has the characteristics of simple and reasonable structure and flexible operation.

Description

technical field [0001] The invention relates to a PTC heating device and a control method thereof. Background technique [0002] As an electric heating element, PTC is widely used in many products of household appliances. The heating efficiency of PTC is high, and the positive temperature coefficient characteristics of PTC are far superior to electric heating tubes for constant temperature control and electric auxiliary heating safety performance. [0003] Judging from the current products on the market that use PTC as the heating material, PTC electric heaters are all fixedly installed, and their on-off is controlled by relays, but the power cannot be adjusted according to needs. Basically, they work in a high-load heating state for a long time, and , because its full power operation will consume more power. Contents of the invention [0004] The object of the present invention is to provide a PTC heating device with simple and reasonable structure and flexible operation...

Claims

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Application Information

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IPC IPC(8): H05B3/02G05D3/12
Inventor 陈保平程毅
Owner MIDEA GRP CO LTD
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