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Automatic opening and closing electric heating controller

An automatic opening and closing, controller technology, applied in electrical program control, program control in sequence/logic controllers, etc., can solve problems such as high cost, increased electricity bills, complex structure, etc., and achieve low cost, simple structure, and sensitivity. high effect

Active Publication Date: 2015-10-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only causes energy loss and unnecessary increase in electricity bills, but more importantly, there are potential safety hazards-there have been several fires caused by electric blankets because the power supply was not turned off.
[0004] Chinese invention patent 200710047845.6 (Intelligent energy-saving electric blanket with shrapnel pressure switch and its temperature control method) discloses a device that uses a shrapnel pressure switch to control the on-off of the electric blanket. Its main function is intelligent temperature control, and the structure is complex and costly.

Method used

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  • Automatic opening and closing electric heating controller
  • Automatic opening and closing electric heating controller
  • Automatic opening and closing electric heating controller

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] Such as figure 1 , 220V AC is introduced from the end of the socket, and one end is transmitted to the electric blanket DRT through the relay node J1, waiting for work. The other end is transmitted to the primary of transformer B through the K1 switch and BX insurance. After being reduced to 9V, the secondary winding is connected to the rectifier bridge D1-4. The rectifier bridge is used for positive and negative outputs, and the positive and negative terminals are respectively connected to filter capacitors C and the positive and negative input lines of the voltage regulator W7809, the follow-up circuit of the voltage regulator provides 9V regulated working power. The stabilized voltage source is first stepped down by the resistor R1, and the light-emitting diode Fg1 is lit to indicate the working condition of the circuit.

[0014] Resistors R2 and R3 divide the voltage to form the DC operating point of the composite triode BG. On the base of the composite transistor,...

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Abstract

An automatic switching electric heating controller comprises an electric heating load part and a control part, the load part comprises an electric heating load which is connected in series with the normally opened contact of a relay, and the control part comprises a circuit for controlling the connection of the control contact of the relay and a multi-contact push switch, and is used for automatically controlling an electric blanket to switch on or off. When the electric blanket with the controller is used by a sleeping person, the multi-contact push switch is automatically switched on by the pressure of the head; after the person gets up and leaves, the switch is automatically switched off, consequently, the electric blanket is prevented from being still switched on to consume energy after the person leaves, and potential safety hazards are prevented as well.

Description

technical field [0001] The invention relates to an electric heating controller for automatic opening and closing, in particular to an electric heating controller for automatic control of electric blankets. Background technique [0002] As an important branch of household appliances, electric heating appliances have attracted much attention how to reduce power consumption and strengthen safety protection. In particular, the energy-saving use of electric blankets and safety precautions are worthy of our attention and solutions. [0003] In winter, thousands of households turn to electric blankets to keep warm in bed. But at present, regardless of one gear or multiple gears of electric blankets, there are basically no more methods to control the power switch except manual switch. Like this, if the user forgets to turn off the power supply after getting up, so in several hours after leaving, the bed is all in the heating state of electricity. This not only causes energy loss,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
Inventor 王睦粟和林
Owner STATE GRID CORP OF CHINA