Novel intelligent electric thermos bottle circuit

A technology of smart electricity and thermos, applied in instruments, computer control, simulators, etc., can solve the problems of secondary pollution, large size, inconvenient movement, etc., and achieve the effect of reducing circuit power consumption, small size, and good adaptability

Inactive Publication Date: 2018-05-29
赵江涛
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AI-Extracted Technical Summary

Problems solved by technology

Because the water dispenser has many disadvantages, such as large size, inconvenient movement, and ...
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Method used

As Fig. 5, display circuit module provides good man-machine interface, is made of 4 seven sections total anode nixie tubes, and it adopts the mode of work o...
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Abstract

A novel intelligent electric thermos bottle circuit is applicable to the field of heating. The intelligent electric thermos bottle circuit is composed of a power circuit, a single-chip microcomputer main control circuit, a heating module circuit, an anti-dry-burning circuit, a display circuit and a temperature sensor circuit. The circuit has the advantages of compact structure, small size, higherdegree of intelligent control, stable work and high adaptability. The safety of the circuit is improved. The power consumption of the circuit is reduced. The circuit has good anti-interference performance and reliability.

Application Domain

Programme controlComputer control +1

Technology Topic

Electric heatingPower circuits +6

Image

  • Novel intelligent electric thermos bottle circuit
  • Novel intelligent electric thermos bottle circuit
  • Novel intelligent electric thermos bottle circuit

Examples

  • Experimental program(1)

Example Embodiment

[0022] The present invention will be further described below with reference to the drawings and embodiments.
[0023] Such as figure 1 , The power supply circuit adopts a power frequency transformer to transform the mains power into 12V. After rectification, filtering and integrated voltage stabilizer 7805, the 12V alternating current is transformed into 5V direct current for single-chip microcomputer and other circuits.
[0024] Such as figure 2 , The single-chip microcomputer main control circuit is the core of the whole circuit, which is composed of AT89S52 single-chip microcomputer, clock circuit and reset circuit, which provides control signals for all peripheral module circuits.
[0025] Such as image 3 , In the heating module circuit, when the system starts and the temperature reaches the user set temperature, the voltage of the comparator's non-inverting input terminal is higher than the reverse input terminal voltage, the comparator output signal, the transistor is turned on, the relay is closed, and the heating module stop working.
[0026] Such as Figure 4 , The anti-dry circuit uses a composite circuit controlled by a relay and a comparator. An inert electrode is placed in the kettle, and a stainless steel kettle is used as an electrode. The comparator is used to compare the voltage when there is water and when there is no water (because the current is equal, The greater the resistance, the more voltage is distributed). When the water level of the kettle is lower than the minimum value, the system defaults to an anhydrous state, the control circuit is activated, the relay is disconnected, and the heating module stops supplying power. The module adopts the commonly used push-touch switch on the market (that is, a key switch that can pass a large current is connected in series to the input circuit), and it is placed on the bottom of the product. It is usually closed due to its own gravity. Once the kettle is overturned, the key switch will bounce and the power supply will be cut off.
[0027] Such as Figure 5 , The display circuit module provides a good man-machine interface, which is composed of 4 seven-segment common anode digital tubes, which adopts dynamic scanning working mode and is driven by 8550 transistors, which makes the display more stable and clearer, and can also observe real-time Water temperature.
[0028] Such as Image 6 , The temperature sensor circuit adopts DS18B20, and its 1 pin is grounded; 2 pin is the communication port connected to the single-chip microcomputer, which can transmit data in two directions; 3 pin is the 5V power supply terminal. The module uses S1, S2 and S3 3 buttons, the functions are selection, temperature increase and decrease.

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Description & Claims & Application Information

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