Control device of domestic intelligent electric control fan heater

A technology of intelligent control and control devices, applied in lighting and heating equipment, fluid heaters, etc., can solve the problems affecting the overall performance of the heater, complex control circuit structure, and low control accuracy, and achieve perfect human-computer interaction and control accuracy High, simple circuit structure effect

Inactive Publication Date: 2013-08-07
王金波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing heater control systems all use open-loop control of discrete components, resulting in the disadvantages of complex control circuit structure, high cost, low control accuracy, and poor reliability, which affects the overall performance of the heater.

Method used

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  • Control device of domestic intelligent electric control fan heater
  • Control device of domestic intelligent electric control fan heater
  • Control device of domestic intelligent electric control fan heater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] like figure 1 As shown, the household intelligent electric control heater control device comprises: an intelligent control chip 4, the intelligent control chip 4 is connected to the key input circuit 1, the indoor temperature acquisition circuit 2, and the internal temperature acquisition circuit 3; Intelligent control chip 4 connects voice alarm circuit 5, liquid crystal display circuit 15; Described intelligent control chip 4 is respectively connected with fan motor drive circuit 7, heating element control circuit 10,13 by photoelectric isolation circuit 6,9,12; The fan motor drive circuit 7 is connected to the fan motor 8; the heating element control circuit 10 is connected to the heating element (1) 11; the heating element control circuit 13 is connected to the heating element (2) 14.

Embodiment 2

[0016] In the household intelligent electric heater control device, the single-chip microcomputer adopts AT89C51, the indoor temperature acquisition circuit and the internal temperature acquisition circuit both adopt DS18B20 digital temperature sensor, and the liquid crystal display circuit adopts LCD1602 liquid crystal display module , The voice alarm circuit adopts ISD1420 voice chip.

[0017] exist figure 2 In the shown embodiment, two DS18B20 digital temperature sensors are respectively connected to the P1.0 and P1.1 pins of the microcontroller AT89C51, and the collected indoor and machine temperatures are stored in the RAM of the microcontroller, and compared with the preset The temperature is compared, and the voice chip ISD1420 alarm prompts if the limit is exceeded. The indoor temperature is displayed in real time by the LCD1602 liquid crystal display module.

Embodiment 3

[0019] exist image 3 In the shown embodiment, the P1.2 and P1.3 pins of the microcontroller AT89C51 control the DC motor drive chip L298 through the photoelectric isolation chip TLP521-4, and the L298 drives the DC motor to realize the rotation of the fan motor. The P1.4 and P1.5 pins of the microcontroller AT89C51 control the opening and closing of the transistors Q1 and Q2 through the photoelectric isolation chip TLP521-4, and then control the relays K1 and K2 to complete the connection of the heating element PTC (1) and the heating element PTC (2). On and off.

[0020] The working process of the patent of the present invention mainly includes three stages: the stage of sending cold air only when starting up. As long as it is turned on, no matter what the working state of the system is, the fan motor must supply air to prevent damage to components caused by dry burning.

[0021] Low heat air supply working stage. Use the buttons to set the temperature, while maintaining ...

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PUM

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Abstract

The invention relates to a fan heater control device. The fan heater control device utilizes an intelligent control chip to control PTC (positive temperature coefficient) heating elements, utilizes a digital temperature sensor to detect indoor temperature in real time and takes corresponding control measures to adjust the indoor temperature, thereby well overcoming the defects of complex structure, high cost, low control accuracy and poor reliability of an existing fan heater control circuit. The fan heater control device comprises the intelligent control chip 4; the intelligent control chip 4 is connected with a button input circuit 1, an indoor temperature acquisition circuit 2 and an in-machine temperature acquisition circuit 3; the intelligent control chip 4 is connected with a voice alarm circuit 5 and a liquid crystal display circuit 15; the intelligent control chip 4 is connected with a fan motor driving circuit 7 and two heating element control circuits 10 and 13 respectively through optoelectronic isolation circuits 6, 9 and 12; the fan motor drive circuit 7 is connected with a fan motor 8, the heating element control circuit 10 is connected with the heating element (1) 11; and the heating element control circuit 13 is connected with the heating element (2) 14. The fan heater control device is applied to the intelligent control of a domestic electric control fan heater.

Description

technical field [0001] The patent of the invention relates to a heater control device that uses an intelligent control chip to control heating elements, uses a digital temperature sensor to detect the indoor temperature in real time and takes corresponding control measures to adjust the indoor temperature, and belongs to the category of household appliances. Background technique [0002] At present, most of the heating elements of heaters use PTC ceramic heating elements, which are widely used in heaters because of their good energy-saving characteristics, extremely low thermal inertia, no open flames, and no radiation safety. However, the existing heater control systems all adopt open-loop control of discrete components, resulting in the disadvantages of complicated control circuit structure, high cost, low control precision, and poor reliability, which affect the overall performance of the heater. Contents of the invention [0003] The purpose of the patent of this inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
Inventor 王金波姜华王立新李大勇
Owner 王金波
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