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Fan automatic turnoff circuit

An automatic shutdown and fan technology, applied in the direction of machines/engines, pump control, non-variable pumps, etc., can solve the problems of inconvenient mass production, high production cost, complex circuits, etc., and achieve easy implementation, good application prospects, The simple effect of the circuit

Inactive Publication Date: 2018-02-09
苏州松挺材料科技有限公司
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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 existing fan timing device, the circuit is relatively complicated, the control is complicated, the production cost is high, and the problems that are not convenient for mass production

Method used

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  • Fan automatic turnoff circuit

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Such as figure 1 As shown, the fan automatic shutdown circuit of the present invention includes a 555 time base chip U1, a storage battery G1 and a relay J1,

[0018] The positive pole of the battery G1 is respectively connected to one end of the resistor R1, one end of the resistor R2, the fourth and eighth pins of the 555 time base chip U1, and one end of the coil of the relay J1,

[0019] The other end of the resistor R1 is respectively connected to one end of the trigger switch S1 and the second pin of the 555 time base chip U1, and the other end of the trigger switch S1 is connected to the negative pole of the battery G1, and the negative pole of the battery G1 Connected to the ground, the other end of the resistor R2 is connected to one end of the capacitor C1, the sixth and seventh pins of the 555 time base chip U1, the other end of the capacitor C1 is c...

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Abstract

The invention discloses a fan automatic shut-off circuit, which comprises a 555 time base chip U1, a storage battery G1 and a relay J1. The fourth and eighth pins are connected to one end of the relay J1 coil, the other end of the resistor R1 is respectively connected to one end of the trigger switch S1 and the second pin of the 555 time base chip U1, and the other end of the trigger switch S1 One end is connected to the negative pole of the battery G1, the negative pole of the battery G1 is connected to the ground, the other end of the resistor R2 is connected to one end of the capacitor C1, the sixth and seventh pins of the 555 time base chip U1, and the capacitor The other end of C1 is connected to ground. The invention does not need a processor, can control the working time of the fan according to the 555 time base chip, has a simple circuit, is easy to implement, and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a fan automatic shutdown circuit. Background technique [0002] In summer night, when people are sleeping, they often turn on the fan to cool down. Moreover, the fan cannot be automatically turned off during the working process. At present, the fan timing devices on the market have complex circuits, complex control, high production costs, and are not convenient for mass production. Contents of the invention [0003] The purpose of the present invention is to overcome the problems of the existing fan timing device, such as relatively complicated circuit, complicated control, high production cost and inconvenient mass production. The fan automatic shutdown circuit of the present invention does not need a processor, can control the working time of the fan according to the 555 time base chip, has a simple circuit, is easy to implement, and has good application prospect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D27/00
CPCF04D27/00
Inventor 周素华
Owner 苏州松挺材料科技有限公司
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