CN101358604A - Fan and sensing control module thereof - Google Patents
Fan and sensing control module thereof Download PDFInfo
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- CN101358604A CN101358604A CNA2007101382817A CN200710138281A CN101358604A CN 101358604 A CN101358604 A CN 101358604A CN A2007101382817 A CNA2007101382817 A CN A2007101382817A CN 200710138281 A CN200710138281 A CN 200710138281A CN 101358604 A CN101358604 A CN 101358604A
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Abstract
The invention discloses a fan which includes a fan body and a sensing control module. The fan body is provided with a fan vane and a flow passage; the fan vane is arranged in the flow passage. The sensing control module is provided with a sensing unit. The sensing unit is arranged on the fan body; besides, the sensing unit outputs a grant back signal when sensing a matter is in the sensing range thereof.
Description
Technical field
The present invention relates to a kind of fan and sensing control module thereof.
Background technique
Along with development electric, electronic product, its demand to heat radiation also increases relatively, so heat dissipation technology also becomes one of development priority of computer technology.Wherein, therefore, also generally be used as the sink in the product because fan has advantages such as low cost, technology maturation.
Please refer to shown in Figure 1ly, existing fan 1 comprises a fan body 11 and a protective net 12.This fan body 11 has a fan blade 111 and a runner 112, and this protective net 12 then is located at this fan body 11 runner upper runners by screw s spiral shell.
In the prior art, the setting of this protective net 12 is in order to prevent fan blade 111 when running up, and foreign matter falls into and collide the fan blade 111 that runs up by runner 112, and then causes the damage of fan blade 111.In addition, this protective net 12 also can prevent fan blade 111 in user's false touch running simultaneously and injured.
Yet the setting of this protective net 12 also can make these runner 112 areas dwindle, and causes the discrepancy air quantity of this fan 1 to reduce, and then also makes the radiating efficiency of this fan 1 reduce.In addition, this protective net 12 also causes the accumulation of dust easily, and dust not only can hinder the discrepancy air quantity minimizing that this runner 112 causes this fan 1, also can cause the pollution of other adjacent components, even this protective net 12 more has the disappearance that produces noise because of vibrations under the situation that carelessness is not locked fully.
Therefore, how to design and a kind ofly do not need protective net and can prevent foreign matter or the fan and the sensing control module thereof of the fan blade of user's false touch in running up, real one of the present important topic that belongs to.
Summary of the invention
Because above-mentioned problem, the object of the present invention is to provide does not a kind ofly need protective net and can prevent foreign matter or the fan and the sensing control module thereof of the fan blade of user's false touch in running up.
Edge is that for reaching above-mentioned purpose, a kind of fan of the present invention comprises a fan body and a sensing control module.This fan body has a fan blade and a runner, and this fan blade is placed in this runner.This sensing control module has a sensing cell, and this sensing cell is arranged on this fan body, and this sensing cell is exported a feedback signal when sensing an object at its sensing range.
In addition, for reaching above-mentioned purpose, a kind of sensing control module of the present invention is in order to control a fan.This sensing control module comprises a sensing cell.This sensing cell is arranged on this fan, and this sensing cell is exported a feedback signal when sensing an object at its sensing range.
From the above, fan of the present invention and sensing control module thereof are this sensing cells of containing this runner of this fan body by this sensing range, when object passes through sensing range, this sensing cell is promptly exported this feedback signal to this amplifying unit, this amplifying unit then can be exported this warning signal to this driver element, export this stop signal to this motor through this driver element again, and this motor promptly can stop the rotation of this fan blade according to this stop signal.Thus, can not only prevent foreign matter or user's false touch this fan blade in running up, and this sensing cell can not cause also the discrepancy air quantity of this fan to reduce.
Description of drawings
Fig. 1 is the schematic representation of existing fan;
Fig. 2 is the schematic representation according to fan of the present invention;
Fig. 3 is the Block Diagram according to the sensing control module of fan of the present invention;
Fig. 4 is the schematic representation according to the sensing control module working state of fan of the present invention.
The component symbol explanation:
1,2: fan 11,21: fan body
111,211: fan blade 112,212: runner
12: protective net 22: sensing control module
221: sensing cell 222: amplifying unit
223: driver element 224: motor
S: screw L: light sensing
R: sensing range P: object
F: feedback signal W: warning signal
S: stop signal C: safety signal
T: actuating signal
Embodiment
Hereinafter with reference to relevant drawings, illustrate according to fan of the present invention and sensing control module thereof.
Please be simultaneously with reference to Fig. 2 and shown in Figure 3, fan 2 of the present invention for example is axial flow fan or centrifugal fan, in the present embodiment, is that example explains with the axial flow fan.This fan 2 comprises a fan body 21 and a sensing control module 22.
This fan body 21 has a fan blade 211 and a runner 212, and this fan blade 211 is placed in this runner 212, and these runner 212 two ends are respectively wind inlet and exhaust outlet.
This sensing control module 22 has a sensing cell 221, and wherein this sensing cell 221 can be an infrared sensor, its be arranged on this runner 212 around.In addition, as shown in Figure 3, this sensing control module 22 more comprises an amplifying unit 222, a driver element 223 and a motor 224.This amplifying unit 222 comprises an operational amplifier, and it also is electrically connected with this sensing cell 221.This driver element 223 comprises a microcontroller or a central processing unit (CPU), and it also is electrically connected with this amplifying unit 222.224 in this motor is electrically connected with this driver element 223, and controls the rotation of this fan blade 211.
Again, please be simultaneously with reference to Fig. 3 and shown in Figure 4, this sensing cell 221 in this sensing control module 22 penetrates many light sensing L, and this each light sensing L is that example explains with the infrared rays.This each light sensing L also forms a sensing range R, and this sensing range R is contained this runner 212.It should be noted that because the sensing mode is numerous, can be the example explanation with above-mentioned light sensing only at this so, yet it be in order to limiting enforcement aspect of the present invention by using a ultrasonic sensing method or a temperature-sensitive sticker to detect for example.
Therefore, after this fan blade 211 begins to rotate, when if an object P is arranged by this sensing range R, be incident upon this each this sensing cell 221 of light sensing L meeting reflected back of this object P, make this sensing cell 221 sense this object P by this sensing range R, at this moment, this feedback signal F of being exported of this sensing cell 221 can change the accurate position of height (high) into by low (low) accurate position.Then, 222 of this amplifying units can receive this feedback signal F of high levle and it is enlarged into a warning signal W, and export in this driver element 223.This driver element 223 then can be exported a stop signal S to this motor 224 according to this warning signal W, 224 rotations that can stop this fan blade 211 of this motor according to this stop signal S, to avoid this fan blade 211 in this object P collision rotation, cause the damage of this object P or this fan blade 211.
On the contrary, when this object P after this sensing range R removes, this each light sensing L then can this sensing cell 221 of reflected back, therefore, this feedback signal F that this sensing cell 221 is exported can transform back into low level by high levle.Then, 222 of this amplifying units can receive this feedback signal F of low level and it is enlarged into a safety signal C and export in this driver element 223.This driver element 223 then can be exported an actuating signal T to this motor 224 according to this safety signal C, and 224 in this motor can restart this fan blade 211 according to this actuating signal T.
At this, the judgment mode of above-mentioned this feedback signal F only is an illustrative also, but not is restricted, and it can be required and design suitable this feedback signal F and judgment mechanism according to reality, do not limited at this.
In sum, fan of the present invention and sensing control module thereof are sensing cells of containing this runner of this fan body by this sensing range, when an object passes through this sensing range, this sensing cell is promptly exported a feedback signal to this amplifying unit, this amplifying unit then can be exported this warning signal to this driver element, export this stop signal to this motor through this driver element again, this motor promptly can stop the rotation of this fan blade according to this stop signal.Thus, can not only prevent foreign matter or user's false touch this fan blade in running up, and this sensing cell can not cause also the discrepancy air quantity of this fan to reduce.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should comprise in the appended claims its equivalent modifications of carrying out or change.
Claims (15)
1, a kind of fan comprises:
Fan body has fan blade and runner, and this fan blade is placed in this runner; And
Sensing control module is arranged on this fan body, and it has sensing cell, wherein this sensing cell sensing one object reset signal when its sensing range.
2, fan as claimed in claim 1, wherein the sensing range of this sensing cell is contained this runner.
3, fan as claimed in claim 1, wherein this sensing control module more comprises:
Amplifying unit is electrically connected with this sensing cell, and exports after this feedback signal is enlarged into warning signal;
Driver element is electrically connected with this amplifying unit, and according to this warning signal output stop signal; And
Motor is electrically connected with this driver element, and stops this fan blade rotation according to this stop signal.
4, fan as claimed in claim 3, wherein when this object leaves this sensing range, this amplifying unit is enlarged into safety signal with this feedback signal and exports this driver element to, and this driver element then restarts this fan blade according to this safety signal output actuating signal.
5, fan as claimed in claim 3, wherein to export this warning signal or this safety signal be difference according to the high low level of this feedback signal to this amplifying unit.
6, fan as claimed in claim 3, wherein this amplifying unit comprises operational amplifier.
7, fan as claimed in claim 3, wherein this driver element comprises microcontroller or central processing unit (CPU).
8, fan as claimed in claim 1, wherein this sensing cell is infrared sensor, ultrasonic sensing method or temperature-sensitive sticker.
9, a kind of sensing control module, in order to the control fan, this sensing control module comprises:
Sensing cell is arranged at this fan upper runner, wherein this sensing cell sensing article reset signal when its sensing range.
10, sensing control module as claimed in claim 9, wherein this sensing control module more comprises:
Amplifying unit is electrically connected with this sensing cell, and exports after this feedback signal is enlarged into warning signal;
Driver element is electrically connected with this amplifying unit, and according to this warning signal output stop signal; And
Motor is electrically connected with this driver element, and according to this stop signal to stop the running of this fan.
11, sensing control module as claimed in claim 10, wherein when this object leaves this sensing range, this amplifying unit is enlarged into safety signal with this feedback signal and exports this driver element to, and this driver element then restarts this fan blade according to this safety signal output actuating signal.
12, sensing control module as claimed in claim 11, wherein to export this warning signal or this safety signal be difference according to the high low level of this feedback signal to this amplifying unit.
13, sensing control module as claimed in claim 9, wherein this amplifying unit comprises operational amplifier.
14, sensing control module as claimed in claim 9, wherein this driver element comprises microcontroller or central processing unit (CPU).
15, sensing control module as claimed in claim 9, wherein this sensing cell is infrared sensor, ultrasonic sensing method or temperature-sensitive sticker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101382817A CN101358604A (en) | 2007-08-03 | 2007-08-03 | Fan and sensing control module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101382817A CN101358604A (en) | 2007-08-03 | 2007-08-03 | Fan and sensing control module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101358604A true CN101358604A (en) | 2009-02-04 |
Family
ID=40331162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101382817A Pending CN101358604A (en) | 2007-08-03 | 2007-08-03 | Fan and sensing control module thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101358604A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518390A (en) * | 2013-06-10 | 2016-04-20 | Bsh家用电器有限公司 | Fan device for an extractor hood, and extractor hood |
| CN106985642A (en) * | 2017-04-13 | 2017-07-28 | 成都科力夫科技有限公司 | The car door of in-car temperature can be automatically adjusted |
| CN108073252A (en) * | 2016-11-18 | 2018-05-25 | 台达电子工业股份有限公司 | Fan assembly and apply its electronic device |
| CN110941024A (en) * | 2019-12-11 | 2020-03-31 | 江西莱利电气有限公司 | Device and method for detecting foreign matters in fan based on interference imaging |
-
2007
- 2007-08-03 CN CNA2007101382817A patent/CN101358604A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105518390A (en) * | 2013-06-10 | 2016-04-20 | Bsh家用电器有限公司 | Fan device for an extractor hood, and extractor hood |
| CN105518390B (en) * | 2013-06-10 | 2018-11-16 | Bsh家用电器有限公司 | Fan assembly and range hood for range hood |
| CN108073252A (en) * | 2016-11-18 | 2018-05-25 | 台达电子工业股份有限公司 | Fan assembly and apply its electronic device |
| CN108073252B (en) * | 2016-11-18 | 2019-11-29 | 台达电子工业股份有限公司 | Fan assembly and the electronic device for applying it |
| CN106985642A (en) * | 2017-04-13 | 2017-07-28 | 成都科力夫科技有限公司 | The car door of in-car temperature can be automatically adjusted |
| CN110941024A (en) * | 2019-12-11 | 2020-03-31 | 江西莱利电气有限公司 | Device and method for detecting foreign matters in fan based on interference imaging |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090204 |