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Servo voltage regulation type temperature control device and method of electric blanket or electric heating kang

A technology of temperature control device and control method, which is applied in the direction of temperature control, non-electric variable control, control/regulation system, etc., can solve the problems of poor comfort, temperature accumulation, etc., and achieve the effect of saving output power consumption

Inactive Publication Date: 2014-02-12
许世祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the voltage level can be adjusted and the voltage range can be changed, this adjustment must be done manually, rather than by changing the load voltage according to the instant temperature signal provided by the temperature sensor, so once it is set at a certain position, Its output voltage will not change at any time. It actually belongs to the multi-level constant temperature control method. When the load insulation condition is good and the power-on time is long, there will be temperature accumulation phenomenon, and the instant temperature will be higher than the set temperature, so that Dry mouth and poor comfort

Method used

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  • Servo voltage regulation type temperature control device and method of electric blanket or electric heating kang
  • Servo voltage regulation type temperature control device and method of electric blanket or electric heating kang
  • Servo voltage regulation type temperature control device and method of electric blanket or electric heating kang

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Embodiment Construction

[0030] The present invention includes two parts of hardware structure and software structure.

[0031] attached figure 1 It is a schematic diagram of the hardware structure of the follow-up voltage-regulating control device for electric blankets or electric kangs.

[0032] Its hardware main body is single-chip microcomputer 4, and single-chip microcomputer 4 supplies power to it by step-down rectification power supply 1, connects keyboard group 3 at any input port of single-chip microcomputer 4, connects display unit 6 at any output port of single-chip microcomputer 4, is characterized in that: Arbitrary input and output ports of the single-chip microcomputer 4 are connected to the electrically erasable non-volatile memory EEPROM5; at the interrupt input pin INT end of the single-chip microcomputer 4, the zero-crossing detector 2 is connected; at the AD input port of the single-chip microcomputer 4, the temperature sensor is connected 7; an output terminal P0 of the single-chip...

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PUM

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Abstract

A servo voltage regulation type temperature control device of an electric blanket or an electric heating kang is provided with a single-chip microcomputer system serving as a main body, and the single-chip microcomputer system comprises a voltage-reduction rectifying power supply 1, a keyboard set 3 and a displayer unit 6. The servo voltage regulation type temperature control device is characterized in that a single-chip microcomputer 4 is connected with an electrically-erasable nonvolatile memory 5, an INT end of the temperature control device is connected with a zero crossing detector 2, an AD input port of the temperature control device is connected with a temperature sensor 7, one output end of the temperature control device is connected with a control electrode G of a silicon controlled rectifier 9 through an optical coupler 8, the silicon controlled rectifier 9, a load and a power supply form a return circuit, a set temperature S is set through the keyboard set 3, instant temperature signals J of the load are collected through the temperature sensor 7, and instant temperatures J and the set temperature S are compared through programming so as to judge the instant temperatures J are lower than or equal to or higher than the set temperature S. Trigger delay time of the silicon controlled rectifier in each power supply period from zero crossing to triggering is prolonged or shortened according to the judgment results, the effective value of the average voltage exerted on the load is changed, and the curve of the practical temperature is the same as the curve of the set temperature.

Description

technical field [0001] The invention relates to an electrothermal temperature control device and a control method. Specifically, it relates to a follow-up pressure-regulating temperature control device and control method for electric blankets or electric kangs. Background technique [0002] At present, electric blankets and electric kangs made of heating elements such as electric heating film, carbon fiber electric heating, electric heating plate, electric heating wire (for convenience of description, hereinafter referred to as load) have been widely used. [0003] At present, the temperature control methods mainly include the following types: [0004] One is to use a manual method, which is to turn on the load for a period of time before going to bed, and then turn off the power supply after reaching a certain temperature or turn the control switch to the half-wave power supply position. [0005] One is the intermittent on-off control method of the upper and lower limits....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
Inventor 许世祥朱相群
Owner 许世祥
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