CN104165152A - Electric fan safety protection device - Google Patents
Electric fan safety protection device Download PDFInfo
- Publication number
- CN104165152A CN104165152A CN201310183231.6A CN201310183231A CN104165152A CN 104165152 A CN104165152 A CN 104165152A CN 201310183231 A CN201310183231 A CN 201310183231A CN 104165152 A CN104165152 A CN 104165152A
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- transistor
- control signal
- electric fan
- protection device
- safety protection
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Abstract
The invention provides an electric fan safety protection device. The electric fan safety protection device is arranged on an electric fan, and the electric fan comprises a mesh enclosure and fan blades. The electric fan safety protection device comprises a short-distance sensor, a rotating speed sensor, a processing module and a driving module, the short-distance sensor is fixed to the mesh enclosure and is used for sensing whether a human body exists within the dangerous range or not, the rotating speed sensor is fixed to one fan blade and is used for sensing the rotating speed of the fan blades, the processing module is connected with the short-distance sensor and the rotating speed sensor, and the processing module sends out a control signal according to a sensing result of the short-distance sensor and the sensing result of the rotating speed sensor. The driving module is connected with the processing module, and the driving module controls the deceleration of the fan blades according to the control signal. The electric fan safety protection device controls the deceleration of the fan blades according to the driving module, and under the dangerous condition, the deceleration of the fan blades can be accelerated, and therefore accidental injuries can be avoided.
Description
[technical field]
The present invention relates to a kind of electric fan safety protection device, particularly a kind of electric fan safety protection device of controlling retardation.
[background technique]
Electric fan is called for short electric fan, and Hong Kong is called fan, and Japan and Korea S are called ventilating fan, is a kind of motoring flabellum rotation that utilizes, and reaches the household electric appliance that make air accelerate circulation, is mainly used in cooling and heatstroke-eliminating and ventilating air.Be widely used in family, office, shop, hospital and hotels and other places.Electric fan is mainly comprised of parts such as fan head, fan blade, guard and control gear.Fan head comprises motor, front and rear cover and the wind pushing mechanism etc. of shaking the head.Existing electric fan not only has timing, wind kind and wind speed to be controlled, and also has touch power-off protection function.For example, C China patent application discloses a kind of safety protection circuit of electric fan No. 201010520541.9, comprises that microprocessor, the inductive sensor being connected with microprocessor, the switching circuit being connected with microprocessor and power circuit form.When having people to touch the metal net mask of fan, can allow fan dead electricity immediately.
Although C China patent application can allow fan dead electricity immediately for No. 201010520541.9, flabellum can continue High Rotation Speed because of inertia, cannot accelerate to slow down, and still likely causes unexpected injury.
[summary of the invention]
Main purpose of the present invention is to provide a kind of electric fan safety protection device of controlling retardation.
The invention provides a kind of electric fan safety protection device, it is installed on an electric fan, and described electric fan comprises guard, flabellum; And described electric fan safety protection device comprises Proximity Sensor, speed probe, puocessing module and driver module, whether described Proximity Sensor is fixed on guard and in order to there to be human body to exist in sensing risk range; Described speed probe is fixed on flabellum and in order to the rotating speed of sensing flabellum; Described puocessing module connects Proximity Sensor and speed probe, and described puocessing module is sent control signal according to the sensing result of the sensing result of Proximity Sensor and speed probe; Described driver module connects puocessing module, and driver module is controlled the retardation of flabellum according to control signal.
Especially, have human body to exist in Proximity Sensor senses risk range, and the speed probe rotating speed that senses flabellum is while being less than the first preset rotation speed, puocessing module is sent stall control signal; While existing without human body in Proximity Sensor senses risk range, puocessing module is sent forward control signal; In Proximity Sensor senses risk range, have human body to exist, and the speed probe rotating speed that senses flabellum is while being not less than the first preset rotation speed, puocessing module is sent reverse control signal.
Especially, described driver module comprises the first transistor, transistor seconds, the 3rd transistor, the 4th transistor AND gate motor, when driver module receives forward control signal, and the first transistor and the 4th transistor turns, and when transistor seconds and the cut-off of the 3rd transistor, motor forward; When driver module receives reverse control signal, the first transistor and the cut-off of the 4th transistor, and when transistor seconds and the 3rd transistor turns, motor reverses; When driver module receives stall control signal, the first transistor and the cut-off of the 4th transistor, and transistor seconds and the 3rd transistor be when end, motor stall.
Especially, when driver module receives reverse control signal, can control according to the size of reverse control signal the converse rotating force of motor.
Especially, the converse rotating force of motor and the size of reverse control signal are directly proportional.
Compared with prior art, electric fan safety protection device of the present invention is controlled the retardation of flabellum by driver module, under danger situation, can accelerate the deceleration of flabellum to avoid the generation of unexpected injury.
[accompanying drawing explanation]
Fig. 1 is the structural representation of electric fan safety protection device of the present invention.
Fig. 2 is the functional-block diagram of electric fan safety protection device of the present invention.
Fig. 3 is the circuit diagram of driver module in electric fan safety protection device of the present invention.
[embodiment]
Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the invention provides a kind of electric fan safety protection device, it is installed on an electric fan 10, and described electric fan 10 comprises guard 11, flabellum 12; And described electric fan safety protection device comprises Proximity Sensor 20, speed probe 30, puocessing module 40 and driver module 50, whether described Proximity Sensor 20 is fixed on guard 11 and in order to there to be human body 300 to exist in sensing risk range; Described speed probe 30 is fixed on flabellum 12 and in order to the rotating speed of sensing flabellum 12; Described puocessing module 40 connects Proximity Sensor 20 and speed probe 30, and described puocessing module 40 is sent control signal according to the sensing result of the sensing result of Proximity Sensor 20 and speed probe 30; Described driver module 50 connects puocessing module 40, and driver module 50 is controlled the retardation of flabellum 12 according to control signal.
In the present embodiment, when Proximity Sensor 20 senses, in risk range, have human body 300 exist, and speed probe 30 rotating speed that senses flabellum 12 is while being less than the first preset rotation speed, puocessing module 40 is sent stall control signal; When Proximity Sensor 20 senses while existing without human body 300 in risk range, puocessing module 40 is sent forward control signal; When Proximity Sensor 20 senses, have human body 300 exist in risk range, and speed probe 30 rotating speed that senses flabellum 12 is while being not less than the first preset rotation speed, puocessing module 40 is sent reverse control signal.
Driver module 50 comprises the first transistor 51, transistor seconds 52, the 3rd transistor 53, the 4th transistor 54 and motor 55, when driver module 50 receives forward control signal, the first transistor 51 and the 4th transistor 51 conductings, and when transistor seconds 52 and the 3rd transistor 53 cut-off, motor 55 forwards; When driver module 50 receives reverse control signal, the first transistor 51 and the 4th transistor 54 cut-offs, and when transistor seconds 52 and the 3rd transistor 53 conducting, motor 55 reverses; When driver module 50 receives stall control signal, the first transistor 51 and the 4th transistor 54 cut-offs, and transistor seconds 52 and the 3rd transistor 53 be when end, motor 55 stalls.
In the present embodiment, the first transistor 51 is provided with the first control end 511, and transistor seconds 52 is provided with the second control end 521, the three transistors 53 and is provided with the 3rd control end 531, the four transistors 54 and is provided with the 4th control end 541.Forward control signal is: the first control end 511 and the 4th control end 541 input high level signals, the second control end 521 and the 3rd control end 531 input low level signals, the first transistor 51 and the 4th transistor 54 conductings, and when transistor seconds 52 and the 3rd transistor 53 cut-off, motor 55 forwards, flabellum 12 normally rotates; Reverse control signal is: the first control end 511 and the 4th control end 541 input low level signals, the second control end 521 and the 3rd control end 531 input high level signals, the first transistor 51 and the 4th transistor 54 cut-offs, and transistor seconds 52 and the 3rd transistor 53 conductings, motor 55 reversions, flabellum 12 slows down.Stall control signal is: the first control end 511 and the 4th control end 541 input low level signals, the second control end 521 and the 3rd control end 531 input low level signals, the first transistor 51 and the 4th transistor 54 cut-offs, and transistor seconds 52 and the 3rd transistor 53 cut-offs, motor 55 stalls, flabellum 12 slows down under effect of inertia.
When driver module 50 receives reverse control signal, can according to the size of reverse control signal, control the converse rotating force of motor 55, the converse rotating force of motor 55 is directly proportional to the size of reverse control signal.For example, risk range can be set as some danger classess, and the distance of human body 300 and fan 10 is nearer, and danger classes is higher, and reverse control signal is larger, and the converse rotating force of motor 55 is larger, and the retardation of flabellum 12 is larger; And the distance of human body 300 and fan 10 is far away, danger classes is lower, and reverse control signal is less, and the converse rotating force of motor 55 is less, and the retardation of flabellum 12 is less.
Electric fan safety protection device of the present invention is controlled the retardation of flabellum 12 by driver module 50, under danger situation, can accelerate the deceleration of flabellum 12 to avoid the generation of unexpected injury.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (5)
1. an electric fan safety protection device, it is installed on an electric fan, and described electric fan comprises guard, flabellum; It is characterized in that described electric fan safety protection device comprises:
Proximity Sensor, whether it is fixed on guard and in order to there to be human body to exist in sensing risk range;
Speed probe, it is fixed on flabellum and in order to the rotating speed of sensing flabellum;
Puocessing module, it connects Proximity Sensor and speed probe, and described puocessing module is sent control signal according to the sensing result of the sensing result of Proximity Sensor and speed probe;
Driver module, it connects puocessing module, and driver module is controlled the retardation of flabellum according to control signal.
2. electric fan safety protection device according to claim 1, it is characterized in that: in Proximity Sensor senses risk range, have human body to exist, and when the rotating speed that speed probe senses flabellum is less than the first preset rotation speed, puocessing module is sent stall control signal; While existing without human body in Proximity Sensor senses risk range, puocessing module is sent forward control signal; In Proximity Sensor senses risk range, have human body to exist, and the speed probe rotating speed that senses flabellum is while being not less than the first preset rotation speed, puocessing module is sent reverse control signal.
3. electric fan safety protection device according to claim 2, it is characterized in that: described driver module comprises the first transistor, transistor seconds, the 3rd transistor, the 4th transistor AND gate motor, when driver module receives forward control signal, the first transistor and the 4th transistor turns, and when transistor seconds and the cut-off of the 3rd transistor, motor forward; When driver module receives reverse control signal, the first transistor and the cut-off of the 4th transistor, and when transistor seconds and the 3rd transistor turns, motor reverses; When driver module receives stall control signal, the first transistor and the cut-off of the 4th transistor, and transistor seconds and the 3rd transistor be when end, motor stall.
4. electric fan safety protection device according to claim 3, is characterized in that: when driver module receives reverse control signal, can control according to the size of reverse control signal the converse rotating force of motor.
5. electric fan safety protection device according to claim 4, is characterized in that: the converse rotating force of motor is directly proportional to the size of reverse control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183231.6A CN104165152B (en) | 2013-05-17 | 2013-05-17 | Electric fan safety guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183231.6A CN104165152B (en) | 2013-05-17 | 2013-05-17 | Electric fan safety guard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104165152A true CN104165152A (en) | 2014-11-26 |
| CN104165152B CN104165152B (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310183231.6A Expired - Fee Related CN104165152B (en) | 2013-05-17 | 2013-05-17 | Electric fan safety guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104165152B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832446A (en) * | 2015-05-25 | 2015-08-12 | 小米科技有限责任公司 | Method and device for controlling fan |
| CN106151088A (en) * | 2016-08-12 | 2016-11-23 | 柳州鹏达科技有限责任公司 | Electric fan control system |
| CN108547786A (en) * | 2018-04-14 | 2018-09-18 | 佛山市粤知中创科技有限公司 | A kind of fan and control method |
| CN109424560A (en) * | 2017-09-04 | 2019-03-05 | 天津工业大学 | A kind of intelligent fan |
| CN111664107A (en) * | 2019-03-09 | 2020-09-15 | 陶春花 | Induction fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358930Y (en) * | 2008-12-24 | 2009-12-09 | 靳同红 | Safety fan |
| JP2011157868A (en) * | 2010-02-01 | 2011-08-18 | Panasonic Corp | Ceiling fan |
| CN202082118U (en) * | 2011-04-27 | 2011-12-21 | 何丹 | Induction type intelligent electric fan |
| CN102338117A (en) * | 2011-09-23 | 2012-02-01 | 无锡艾德里安科技有限公司 | Numerical control electric fan |
| JP2012057587A (en) * | 2010-09-13 | 2012-03-22 | Panasonic Corp | Ceiling fan |
| CN202266471U (en) * | 2011-10-25 | 2012-06-06 | 祁丽芬 | Induction fan |
| CN102758783A (en) * | 2011-04-26 | 2012-10-31 | 郭炜斌 | Finger touch protection fan |
-
2013
- 2013-05-17 CN CN201310183231.6A patent/CN104165152B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358930Y (en) * | 2008-12-24 | 2009-12-09 | 靳同红 | Safety fan |
| JP2011157868A (en) * | 2010-02-01 | 2011-08-18 | Panasonic Corp | Ceiling fan |
| JP2012057587A (en) * | 2010-09-13 | 2012-03-22 | Panasonic Corp | Ceiling fan |
| CN102758783A (en) * | 2011-04-26 | 2012-10-31 | 郭炜斌 | Finger touch protection fan |
| CN202082118U (en) * | 2011-04-27 | 2011-12-21 | 何丹 | Induction type intelligent electric fan |
| CN102338117A (en) * | 2011-09-23 | 2012-02-01 | 无锡艾德里安科技有限公司 | Numerical control electric fan |
| CN202266471U (en) * | 2011-10-25 | 2012-06-06 | 祁丽芬 | Induction fan |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832446A (en) * | 2015-05-25 | 2015-08-12 | 小米科技有限责任公司 | Method and device for controlling fan |
| CN106151088A (en) * | 2016-08-12 | 2016-11-23 | 柳州鹏达科技有限责任公司 | Electric fan control system |
| CN109424560A (en) * | 2017-09-04 | 2019-03-05 | 天津工业大学 | A kind of intelligent fan |
| CN108547786A (en) * | 2018-04-14 | 2018-09-18 | 佛山市粤知中创科技有限公司 | A kind of fan and control method |
| CN111664107A (en) * | 2019-03-09 | 2020-09-15 | 陶春花 | Induction fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104165152B (en) | 2016-06-29 |
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Granted publication date: 20160629 Termination date: 20170517 |
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| CF01 | Termination of patent right due to non-payment of annual fee |