CN104712568A - Control circuit of electric fan - Google Patents
Control circuit of electric fan Download PDFInfo
- Publication number
- CN104712568A CN104712568A CN201310669231.7A CN201310669231A CN104712568A CN 104712568 A CN104712568 A CN 104712568A CN 201310669231 A CN201310669231 A CN 201310669231A CN 104712568 A CN104712568 A CN 104712568A
- Authority
- CN
- China
- Prior art keywords
- control circuit
- circuit
- fan
- puocessing module
- electric fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/007—Conjoint control of two or more different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention relates to a control circuit of an electric fan. The control circuit comprises a processing module, an infrared sensor, a temperature sensor, a range sensor, an oscillating control circuit, a PWM (pulse-width modulation) speed regulation circuit and a power switching circuit; the output ends of the infrared sensor, the temperature sensor and the range sensor are connected with an input port of the processing module respectively; the input ends of the oscillating control circuit, the PWM speed regulation circuit and the power switching circuit are connected with an output port of the processing module respectively. The control circuit of the electric fan can automatically adjust the rotating speed and direction of the fan and has better safety.
Description
Technical field
The present invention relates to control circuit, be specifically related to a kind of control circuit of electric fan.
Background technique
Existing fan mainly contains following two kinds of control modes: one is that manually mechanical type realizes; Two is the telecontrol that use a teleswitch, first allow fan head swinging, after blade face turns to suitable direction, control it again stop operating, thus obtain more appropriate air supply direction, but the bimanualness that above two kinds of modes all depend on people realizes the control to fan, and operate inconvenience.In addition, although be provided with mat outside blade, because the finger of child is comparatively thin, still can finger be extend in guard, there is potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of control circuit of electric fan, automatically can regulate rotating speed and the direction of fan, and Security is better.
The control circuit of electric fan of the present invention, comprise puocessing module, infrared senor, temperature transducer, range sensor, control circuit of shaking the head, PWM alignment circuit and power switch circuit, infrared senor, temperature transducer are connected with the inlet opening of puocessing module respectively with the output terminal of range sensor, described in shake the head control circuit, PWM alignment circuit be connected with the delivery outlet of puocessing module respectively with the input end of power switch circuit.
Also comprise warning circuit, this warning circuit is connected with puocessing module.
During use, be installed on base by infrared senor 3, temperature transducer and range sensor, be connected by the output terminal of control circuit of shaking the head with head-shaking motor, the output terminal of PWM alignment circuit is connected with blade rotation motor.Infrared senor detects the infrared signal of fan surrounding body in real time, and gathered infrared signal is passed to puocessing module; Puocessing module according to infrared signal analyzing positions of indoor persons, and generates control information according to personnel positions, and control information is sent to control circuit of shaking the head, and control circuit of shaking the head controls fan head swinging, the wind direction of fan is adjusted to the position at personnel place.Temperature transducer detects extraneous temperature in real time, and gathered temperature signal is passed to puocessing module, and puocessing module sends control signal according to temperature signal, and control PWM alignment circuit carries out speed governing to fan.The distance between this fan and people measured in real time by range sensor, and measured distance signal is passed to puocessing module, and when detecting that the distance of people and fan is less than or equal to default abstinence distance, puocessing module controls warning circuit and reports to the police; When detecting that the distance of people and fan is less than or equal to default exposure distance, puocessing module controls power switch circuit and cuts off the electricity supply.
The control circuit of electric fan of the present invention:
One, can guarantee that user all can blow to wind in indoor arbitrary position, when multi-user uses, control fan and on the position of each user, stop the identical time for user's blowing, reach the effect that multi-user uses a fan simultaneously, when infrared senor detect indoor nobody time, control fan oneself and enter sleep state, user need not worry forget closedown fan and cause electricity consumption to waste;
Two, the wind speed of fan can be regulated in real time according to external temperature, when people evening in bed, after starting the control circuit of electric fan, after temperature declines, the control circuit controlling electric fan reduces wind speed, prevents people from suffering from cold, after temperature rises, the control circuit controlling electric fan improves wind speed, guarantees that people can have a good sleep;
Three, Security is good, when the distance of individually defined thing (such as: child) and fan is less than default safe distance time, controls fan stall and also sends alarm sound, thus effectively prevents from child from pointing stretching into fan being twisted wound.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the control circuit of electric fan of the present invention.
Embodiment
Now by reference to the accompanying drawings the present invention is described in further detail.
The control circuit of electric fan as shown in Figure 1, comprise puocessing module 4, infrared senor 3, temperature transducer 2, range sensor 1, control circuit 6 of shaking the head, PWM alignment circuit 7, power switch circuit 8 and warning circuit 5, infrared senor 3, temperature transducer 2 are connected with the inlet opening of puocessing module 4 respectively with the output terminal of range sensor 1, described in shake the head control circuit 6, PWM alignment circuit 7, power switch circuit 8 be connected with the delivery outlet of puocessing module 4 respectively with the input end of warning circuit 5.
During use, be installed on the base of fan by infrared senor 3, temperature transducer 2 and range sensor 1, be connected by the output terminal of control circuit 6 of shaking the head with head-shaking motor, the output terminal of PWM alignment circuit 7 is connected with blade rotation motor.
Infrared senor 3 detects the infrared signal of fan surrounding body in real time, and gathered infrared signal is passed to puocessing module 4; Puocessing module 4 according to infrared signal analyzing positions of indoor persons, and generates control information according to personnel positions, and control information is sent to control circuit 6 of shaking the head, and control circuit 6 of shaking the head controls fan head swinging, the wind direction of fan is adjusted to the position at personnel place.When the infrared signal less than human body responded to by infrared senor 3, puocessing module 4 sends sleep signal makes the head-shaking motor of fan and/or the closedown of blade rotation motor enter sleep state, when infrared senor 3 senses the infrared signal of human body again, puocessing module 4 sends wake-up signal, makes fan work.In addition, when infrared senor 3 induces surrounding people for time multiple, puocessing module 4 sends control signal and controls fan to control circuit 6 of shaking the head and shake the head, and controls fan and on the position of each user, stops the identical time dry for user.Temperature transducer 2 detects extraneous temperature in real time, and gathered temperature signal is passed to puocessing module 4, and puocessing module 4 sends control signal according to temperature signal, and control PWM alignment circuit 7 pairs of fans carry out speed governing.The distance between human body measured in real time by range sensor 1, and measured distance signal is passed to puocessing module 4, and when detecting that the distance of human body and fan is less than or equal to default abstinence distance, puocessing module 4 controls warning circuit 5 and sends chimes of doom; When detecting that the distance of human body and fan is less than or equal to default exposure distance, puocessing module 4 controls power switch circuit 8 and cuts off the electricity supply, and also can avoid the generation of accident.
Claims (2)
1. the control circuit of an electric fan, it is characterized in that: comprise puocessing module (4), infrared senor (3), temperature transducer (2), range sensor (1), control circuit of shaking the head (6), PWM alignment circuit (7) and power switch circuit (8), infrared senor, temperature transducer are connected with the inlet opening of puocessing module respectively with the output terminal of range sensor, described in shake the head control circuit, PWM alignment circuit be connected with the delivery outlet of puocessing module respectively with the input end of power switch circuit.
2. the control circuit of electric fan according to claim 1, is characterized in that: also comprise warning circuit (5), and this warning circuit (5) is connected with puocessing module (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669231.7A CN104712568A (en) | 2013-12-11 | 2013-12-11 | Control circuit of electric fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669231.7A CN104712568A (en) | 2013-12-11 | 2013-12-11 | Control circuit of electric fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104712568A true CN104712568A (en) | 2015-06-17 |
Family
ID=53412201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310669231.7A Pending CN104712568A (en) | 2013-12-11 | 2013-12-11 | Control circuit of electric fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104712568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020156A (en) * | 2015-07-20 | 2015-11-04 | 西北农林科技大学 | Intelligent ceiling fan based on human body infrared sensors and control method thereof |
| CN107061339A (en) * | 2017-06-30 | 2017-08-18 | 广东美的环境电器制造有限公司 | Electric fan and its control method |
-
2013
- 2013-12-11 CN CN201310669231.7A patent/CN104712568A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020156A (en) * | 2015-07-20 | 2015-11-04 | 西北农林科技大学 | Intelligent ceiling fan based on human body infrared sensors and control method thereof |
| CN105020156B (en) * | 2015-07-20 | 2017-11-28 | 西北农林科技大学 | Intelligent ceiling fan and its control method based on infrared sensor of the human body |
| CN107061339A (en) * | 2017-06-30 | 2017-08-18 | 广东美的环境电器制造有限公司 | Electric fan and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |