An automatic defogging device
A defogging device and automatic technology, applied in the direction of non-electric variable control, instrument, humidity control, etc., can solve the problems of mirror loss, water condensation, obstructing viewing, etc., and achieve the elimination of crystal water, simple circuit structure, and easy implementation Effect
Active Publication Date: 2015-09-09
宜宾丰川动力科技有限公司
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Problems solved by technology
However, in winter, when there is a temperature difference between the two sides of the glass, a layer of foggy crystal water will form on the glass, making the mirror lose its function as a mirror and the glass lose its perspective.
Especially on the viewing platform, when there is a certain gap between the indoor temperature and the outdoor temperature, water will form on the glass, hindering our view
Method used
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[0017] Such as figure 1 The shown automatic defogging device includes a humidity sensor, a variable resistor R1, a resistor R3, a resistor R4 and an operational amplifier. After the humidity sensor is connected in series with the variable resistor R1, the non-public connected to the power supply; the two non-common ends of the resistor R3 and the resistor R4 are connected in series to the two non-common ends of the humidity sensor and the variable resistor R1 respectively; the non-inverting input of the operational amplifier is connected to On the common end of the humidity sensitive sensor and the variable resistor R1, the inverting input end is connected on the common end of the resistance R3 and the resistance R4; the non-inverting input end and the output end of the operational amplifier are connected with a resistance R5, and the The output terminal of the operational amplifier is connected to the base of the triode through the resistor R6; the emitter of the triode is gr...
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The invention discloses an automatic demisting device. The automatic demisting device is characterized in that a moisture-sensitive sensor is connected with a variable resistor R1 in series, and then a non-common terminal of the moisture-sensitive sensor is connected with a power supply; a resistor R3 and a resistor R4 are connected in series; the two non-common terminals of the resistors R3 and R4 are respectively connected to another two non-common terminals of the moisture-sensitive sensor and the variable resistor R1; an in-phase input end of an operational amplifier is connected with a common terminal of the moisture-sensitive sensor and the variable resistor R1, while an inverter input end is connected with the common terminal of the resistor R3 and the resistor R4; a resistor R5 is connected between the in-phase input end and the output end of the operational amplifier; the output end of the operation amplifier is connected with a base electrode of a triode through a resistor R6; an emitting electrode of the triode is grounded, while a collector electrode is connected with a anode of a diode; a cathode of the diode is connected with the power supply; a resistor R7 is connected between the emitting electrode and the collector electrode of the triode. The automatic demisting device has the advantages that the circuit structure is simple, and the device can detect the moisture of a mirror surface and automatically demist.
Description
technical field [0001] The invention relates to a demisting device, in particular to an automatic demisting device. Background technique [0002] The urban economy is more and more developed, and more and more mirror designs are used in the interior and exterior decoration of buildings. There are more and more occasions with glass mirrors such as bathrooms and floor-to-ceiling windows. However, in winter, when there is a temperature difference between the two sides of the glass, a layer of misty crystal water will form on the glass, making the mirror lose its function as a mirror and the glass losing its perspective. Especially on the viewing platform, when there is a certain gap between the indoor temperature and the outdoor temperature, water will form on the glass, hindering our viewing. Contents of the invention [0003] The invention provides an automatic defogging device, which has a simple circuit structure, uses a humidity sensor to detect humidity, and controls ...
Claims
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IPC IPC(8): G05D22/02
Inventor 黄友华
Owner 宜宾丰川动力科技有限公司