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Accurate temperature control system

A temperature control system and precise technology, applied in the field of control systems, can solve problems such as temperature control in a constant range, and achieve the effects of stable voltage, improved accuracy and stable operation

Inactive Publication Date: 2018-02-02
CHENGDU JIESHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the heated seats on the market cannot control the temperature well within a constant range, and to provide an accurate temperature control system

Method used

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Embodiment

[0017] Such as figure 1 As shown, the present invention is mainly composed of a control chip U, a triode VT1, a triode VT2, a triode VT3, a triac VS, a heating wire H, an amplifier P, a thermistor RT, a potentiometer RP1, a potentiometer RP2, a potentiometer RP3, and a resistance R1 , resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, capacitor C1, capacitor C2, capacitor C3, capacitor C4, capacitor C5, diode D1, Zener diode D2, diode D3 , Zener diode D4, Zener diode D5, frequency processing circuit and Zener diode D6.

[0018] When connected, the P pole of the Zener diode D2 is connected to the output terminal of the amplifier P, and the N pole is connected to the collector of the triode VT1 after passing through the thermistor RT. The positive pole of the capacitor C1 is connected to the collector of the triode VT1, and the negative pole is grounded. The resistor R1 is connected in series between the base and the collect...

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PUM

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Abstract

The invention discloses a precise temperature control system, which is characterized in that it is mainly composed of a control chip U, a triode VT1, a triode VT3, a bidirectional thyristor VS, a heating wire H, the P pole is connected with the output end of the amplifier P, and the N pole is heated by After the varistor RT, it is composed of a Zener diode D2 connected to the collector of the triode VT1. The present invention can automatically control the temperature. When the temperature reaches the set upper limit temperature value, it will automatically stop heating, and when the temperature drops to the lower limit temperature value, it will automatically start heating, so as to keep the temperature of the heated seat in a comfortable and constant range. Inside. The invention can amplify the amplitude of the voltage output by the thermistor, so that the control chip can more accurately compare the voltage with the set voltage value, so as to control the heating wire work more accurately and make the temperature of the heating seat more accurate. Stay within a comfortable constant range.

Description

technical field [0001] The invention relates to a control system, in particular to an accurate temperature control system. Background technique [0002] With the development of science and technology, people's requirements for the comfort of modern life are getting higher and higher. Heated seats can make people enjoy the warmth brought by technology to people's lives in the cold winter, and it has become an essential for people in winter. living furniture. However, the heated seats currently on the market cannot well control the temperature in a constant range, which affects their comfort. Contents of the invention [0003] The purpose of the present invention is to overcome the defect that the heated seats on the market cannot control the temperature well within a constant range, and provide an accurate temperature control system. [0004] The object of the present invention is achieved through the following technical solutions: a precise temperature control system mai...

Claims

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Application Information

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IPC IPC(8): G05D23/24
CPCG05D23/24
Inventor 王丹
Owner CHENGDU JIESHENG TECH CO LTD
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