CN104165152B - Electric fan safety guard - Google Patents
Electric fan safety guard Download PDFInfo
- Publication number
- CN104165152B CN104165152B CN201310183231.6A CN201310183231A CN104165152B CN 104165152 B CN104165152 B CN 104165152B CN 201310183231 A CN201310183231 A CN 201310183231A CN 104165152 B CN104165152 B CN 104165152B
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- Prior art keywords
- transistor
- control signal
- flabellum
- electric fan
- proximity sensor
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Abstract
The present invention provides a kind of electric fan safety guard, and it is installed on an electric fan, and described electric fan includes guard, flabellum；And described electric fan safety guard includes Proximity Sensor, speed probe, processing module and drives module, whether described Proximity Sensor is fixed on guard and has human body to exist in risk range in order to sense；Described speed probe is fixed on flabellum and in order to sense the rotating speed of flabellum；Described processing module connects Proximity Sensor and speed probe, and described processing module sends control signal according to the sensing result of Proximity Sensor and the sensing result of speed probe；Described driving module connects processing module, and drives module to control the deceleration of flabellum according to control signal.Electric fan safety guard of the present invention is by driving module to control the deceleration of flabellum, under danger situation, can accelerate the generation to avoid unexpected injury of slowing down of flabellum.
Description
[technical field]
The present invention relates to a kind of electric fan safety guard, particularly a kind of electric fan safety guard controlling deceleration.
[background technology]
Electric fan is called for short electric fan, and Hong Kong is called fan, and Japan and Korea S are called ventilating fan, are that one utilizes motor-driven flabellum to rotate, and reaches the household electrical appliance making air accelerate circulation, is mainly used in cooling and heatstroke-eliminating and ventilating air.It is widely used in family, office, shop, hospital and hotels and other places.Electric fan is mainly made up of parts such as fan head, fan blade, guard and control devices.Fan head includes motor, front and rear cover and wind pushing mechanism etc. of shaking the head.Existing electric fan not only has timing, wind kind and blast velocity control, also has touch power-off protection function.Such as, China's Mainland patent application the 201010520541.9th discloses a kind of safety protection circuit of electric fan, and on-off circuit and power circuit that the inductive transducer being connected with microprocessor including microprocessor is connected with microprocessor form.When the metal net mask having people to touch fan, fan dead electricity immediately can be allowed.
Although China's Mainland patent application the 201010520541.9th can allow fan dead electricity immediately, but flabellum can continue high speed rotating because of inertia, it is impossible to accelerates to slow down, it is possible to cause unexpected injury.
[summary of the invention]
A kind of electric fan safety guard controlling deceleration of offer is provided.
The present invention provides a kind of electric fan safety guard, and it is installed on an electric fan, and described electric fan includes guard, flabellum；And described electric fan safety guard includes Proximity Sensor, speed probe, processing module and drives module, whether described Proximity Sensor is fixed on guard and has human body to exist in risk range in order to sense；Described speed probe is fixed on flabellum and in order to sense the rotating speed of flabellum；Described processing module connects Proximity Sensor and speed probe, and described processing module sends control signal according to the sensing result of Proximity Sensor and the sensing result of speed probe；Described driving module connects processing module, and drives module to control the deceleration of flabellum according to control signal.
Especially, there is human body to exist in risk range when Proximity Sensor senses, and when speed probe senses the rotating speed of flabellum less than the first preset rotation speed, processing module sends stall control signal；When Proximity Sensor senses and exists without human body in risk range, processing module sends rotating forward control signal；Having human body to exist in risk range when Proximity Sensor senses, and speed probe senses the rotating speed of flabellum when being not less than the first preset rotation speed, processing module sends reverse control signal.
Especially, described driving module includes the first transistor, transistor seconds, third transistor, the 4th transistor AND gate motor, when rotating forward control signal when driving module to receive, and the first transistor and the 4th transistor turns, and when transistor seconds and third transistor cut-off, motor rotates forward；When driving module to receive reverse control signal, the first transistor and the 4th transistor cutoff, and when transistor seconds turns on third transistor, motor reversion；When driving module to receive stall control signal, the first transistor and the 4th transistor cutoff, and when transistor seconds and third transistor are ended, motor stall.
Especially, when driving module to receive reverse control signal, the converse rotating force of motor can be controlled according to the size of reverse control signal.
Especially, the converse rotating force of motor is directly proportional to the size of reverse control signal.
Compared with prior art, electric fan safety guard of the present invention is by driving module to control the deceleration of flabellum, under danger situation, can accelerate the generation to avoid unexpected injury of slowing down of flabellum.
[accompanying drawing explanation]
Fig. 1 is the structural representation of electric fan safety guard of the present invention.
Fig. 2 is the functional-block diagram of electric fan safety guard of the present invention.
Fig. 3 is the circuit diagram driving module in electric fan safety guard of the present invention.
[detailed description of the invention]
Referring to shown in Fig. 1, Fig. 2 and Fig. 3, the present invention provides a kind of electric fan safety guard, and it is installed on an electric fan 10, and described electric fan 10 includes guard 11, flabellum 12；And described electric fan safety guard includes Proximity Sensor 20, speed probe 30, processing module 40 and drives module 50, whether described Proximity Sensor 20 is fixed on guard 11 and has human body 300 to exist in risk range in order to sense；Described speed probe 30 is fixed on flabellum 12 and in order to sense the rotating speed of flabellum 12；Described processing module 40 connects Proximity Sensor 20 and speed probe 30, and described processing module 40 sends control signal according to the sensing result of Proximity Sensor 20 and the sensing result of speed probe 30；Described driving module 50 connects processing module 40, and drives module 50 to control the deceleration of flabellum 12 according to control signal.
In the present embodiment, there is human body 300 to exist in risk range when Proximity Sensor 20 senses, and when speed probe 30 senses the rotating speed of flabellum 12 less than the first preset rotation speed, processing module 40 sends stall control signal；When Proximity Sensor 20 senses and exists without human body 300 in risk range, processing module 40 sends rotating forward control signal；Having human body 300 to exist in risk range when Proximity Sensor 20 senses, and speed probe 30 senses the rotating speed of flabellum 12 when being not less than the first preset rotation speed, processing module 40 sends reverse control signal.
Module 50 is driven to include the first transistor 51, transistor seconds 52, third transistor the 53, the 4th transistor 54 and motor 55, when rotating forward control signal when driving module 50 to receive, the first transistor 51 and the 4th transistor 51 turn on, and transistor seconds 52 is when ending with third transistor 53, motor 55 rotates forward；When driving module 50 to receive reverse control signal, the first transistor 51 and the 4th transistor 54 end, and when transistor seconds 52 turns on third transistor 53, motor 55 reverses；When driving module 50 to receive stall control signal, the first transistor 51 and the 4th transistor 54 end, and when transistor seconds 52 ends with third transistor 53, motor 55 stall.
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, and third transistor 53 is provided with the 3rd control end 531, and the 4th transistor 54 is provided with the 4th control end 541.Rotating forward control signal is: first controls end 511 and the 4th controls end 541 input high level signal, second controls end 521 and the 3rd controls end 531 input low level signal, then the first transistor 51 and the 4th transistor 54 turn on, and transistor seconds 52 is when ending with third transistor 53, motor 55 rotates forward, and flabellum 12 normally rotates；Reverse control signal is: first controls end 511 and the 4th controls end 541 input low level signal, second controls end 521 and the 3rd controls end 531 input high level signal, then the first transistor 51 and the 4th transistor 54 end, and transistor seconds 52 turns on third transistor 53, motor 55 reverses, and flabellum 12 slows down.Stall control signal is: first controls end 511 and the 4th controls end 541 input low level signal, second controls end 521 and the 3rd controls end 531 input low level signal, then the first transistor 51 and the 4th transistor 54 end, and transistor seconds 52 ends with third transistor 53, motor 55 stall, flabellum 12 slows down under effect of inertia.
When driving module 50 to receive reverse control signal, can controlling the converse rotating force of motor 55 according to the size of reverse control signal, the converse rotating force of motor 55 is directly proportional to the size of reverse control signal.Such as, risk range can be set as some danger classes, and human body 300 is more near with the distance of fan 10, then danger classes is more high, and reverse control signal is more big, and the converse rotating force of motor 55 is more big, and the deceleration of flabellum 12 is more big；And human body 300 is more remote with the distance of fan 10, then danger classes is more low, and reverse control signal is more little, and the converse rotating force of motor 55 is more little, and the deceleration of flabellum 12 is more little.
Electric fan safety guard of the present invention is by driving module 50 to control the deceleration of flabellum 12, under danger situation, can accelerate the generation to avoid unexpected injury of slowing down of flabellum 12.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with scope of the claims.
Claims (4)
1. an electric fan safety guard, it is installed on an electric fan, and described electric fan includes guard, flabellum；It is characterized in that described electric fan safety guard includes:
Proximity Sensor, whether it is fixed on guard and has human body to exist in risk range in order to sense；
Speed probe, it is fixed on flabellum and in order to sense the rotating speed of flabellum；
Processing module, it connects Proximity Sensor and speed probe, and described processing module sends control signal according to the sensing result of Proximity Sensor and the sensing result of speed probe, human body is had to exist in risk range when Proximity Sensor senses, and speed probe is when sensing the rotating speed of flabellum less than the first preset rotation speed, processing module sends stall control signal；When Proximity Sensor senses and exists without human body in risk range, processing module sends rotating forward control signal；Having human body to exist in risk range when Proximity Sensor senses, and speed probe senses the rotating speed of flabellum when being not less than the first preset rotation speed, processing module sends reverse control signal；
Driving module, it connects processing module, and drives module to control the deceleration of flabellum according to control signal.
2. electric fan safety guard according to claim 1; it is characterized in that: described driving module includes the first transistor, transistor seconds, third transistor, the 4th transistor AND gate motor; when rotating forward control signal when driving module to receive; the first transistor and the 4th transistor turns; and when transistor seconds and third transistor cut-off, motor rotates forward；When driving module to receive reverse control signal, the first transistor and the 4th transistor cutoff, and when transistor seconds turns on third transistor, motor reversion；When driving module to receive stall control signal, the first transistor and the 4th transistor cutoff, and when transistor seconds and third transistor are ended, motor stall.
3. electric fan safety guard according to claim 2, it is characterised in that: when driving module to receive reverse control signal, the converse rotating force of motor can be controlled according to the size of reverse control signal.
4. electric fan safety guard according to claim 3, it is characterised 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 CN104165152A (en) | 2014-11-26 |
| CN104165152B true 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 |
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| Country | Link |
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| CN (1) | CN104165152B (en) |
Families Citing this family (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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN104165152A (en) | 2014-11-26 |
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