Fan stoppage monitoring circuit
A monitoring circuit and stop-rotation technology, which is applied in pump control, non-variable pumps, machines/engines, etc., can solve problems such as reduced work efficiency, delayed work, and aggravated aging of components, so as to achieve fewer components and avoid losses , the effect of simple circuit
Inactive Publication Date: 2016-11-23
苏州欧复能新材料科技有限公司
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[0002] The fan is a necessary heat dissipation tool for many electrical equipment, the most common ones are refrigerators, air conditioners and computers. Such equipment will generate a lot of heat during work. If the heat dissipation is not available for a long time, the work efficiency will be reduced and the components will be damaged. Aging is intensified, and even the instrument is burned, so the normal operation of the fan is very important. However, most of the cooling fans of this type of equipment are inside the equipment. normal work
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[0010] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0011] see figure 1 , a fan stop monitoring circuit, comprising a resistor R1, a diode D1, a triode V1 and a buzzer B, one end of the resistor R1 is connected to a resistor R2, a resistor R3, a resistor R4, a resistor R5, the cathode of the diode D1, a Hall Pin 1 of sensor A, pin 8 of chip IC1 and power supply VCC, the other end of resistor R1 is connected to capacitor C1 and pin 2 of Hall sensor A, the other end of capacitor C1 is connected to the other end o...
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The invention discloses a fan stoppage monitoring circuit, which comprises a resistor R1, a diode D1, a triode V1 and a buzzer B. One end of the resistor R1 is connected with a resistor R2, a resistor R3, a resistor R4, a resistor R5, a cathode of the diode D1, a pin 1 of a Hall sensor A, a pin 8 of a chip IC 1 (Integrated Circuit) and a VCC (Volt Current Condenser); and the other end of the resistor R1 is connected with a capacitor C1 and a pin 2 of the Hall sensor A. The fan stoppage monitoring circuit provided by the invention adopts the Hall sensor to collect the rotary speed of a fan in equipment, and converts into a pulse signal to monitor in real time, so that once the fan has too low rotary speed or stops, a buzzer can be started to give an alarm sound to remind a user to check the status of the fan, and the loss caused by fan stoppage is avoided; and meanwhile, the circuit is simple, less in elements and convenient to use.
Description
technical field [0001] The invention relates to a monitoring circuit, in particular to a fan stop monitoring circuit. Background technique [0002] The fan is a necessary heat dissipation tool for many electrical equipment, the most common ones are refrigerators, air conditioners and computers. Such equipment will generate a lot of heat during work. If the heat dissipation is not available for a long time, the work efficiency will be reduced and the components will be damaged. Aging is intensified, and even the instrument is burned, so the normal operation of the fan is very important. However, most of the cooling fans of this type of equipment are inside the equipment. normal work. Contents of the invention [0003] The purpose of the present invention is to provide a fan stop monitoring circuit with simple structure and strong practicability, so as to solve the problems raised in the above-mentioned background technology. [0004] To achieve the above object, the prese...
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IPC IPC(8): F04D27/00
Inventor 陈树丽
Owner 苏州欧复能新材料科技有限公司