CN206582157U - A kind of improved type fan drive device - Google Patents
A kind of improved type fan drive device Download PDFInfo
- Publication number
- CN206582157U CN206582157U CN201720071590.6U CN201720071590U CN206582157U CN 206582157 U CN206582157 U CN 206582157U CN 201720071590 U CN201720071590 U CN 201720071590U CN 206582157 U CN206582157 U CN 206582157U
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- fan
- control unit
- signal
- fans
- drive control
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Abstract
The utility model provides a kind of improved type fan drive device, includes：One rotation speed of the fan detecting unit；And a fans drive control unit, fans drive control unit is electrically connected to rotation speed of the fan detecting unit and fan assembly；After fan assembly power-off, fan assembly rotates signal because inertially rotating to produce a fan；Rotation speed of the fan detecting unit transmission fan rotates signal to fans drive control unit；When fans drive control unit receives fan rotation signal and fan assembly is required power-off, the on-state rate of multiple driving signal work periods of the fans drive control unit reduction to drive fan assembly.The utility model, which is utilized, to be detected after the power-off of the fan of rotating speed because inertially rotating and rotation speed of the fan detecting unit（Such as Hall sensing component）Fan produced by mutual induction rotates the on-state rate of driving signal work period of the signal with lasting reduction to drive all fans to ensure that all fans can stop operating really when being required power-off.
Description
Technical field
The utility model is related to fan art, particularly a kind of improved type fan drive device.
Background technology
Current some common electronic equipments, such as computer or server etc., it will usually set multiple inside it
Fan, use and electronic equipment radiated.Although the inside system of electronic equipment sets multiple fans, current electronics
Equipment is typically only capable to detect the rotating speed of one of fan.When these fans are required power-off（For example electronic equipment will be powered off
Shutdown）, electronic equipment can be by drive these fan assemblys multiple driving signal work period（duty cycle）Lead
Passband gradually reduces to attempt to close the fan detected, for example, drive the on-state rate of signal work period from 9 percent
Ten are reduced to 80 percent, and 70 percent is reduced to from 80 percent, by that analogy, until electronic equipment is detected just
Fan in detecting has stopped operating.
In a specific embodiment, when the on-state rate of these driving signal work periods is gradually decrease to only by electronic equipment
When 25 percent, electronic equipment detects the fan detected and stopped operating（Now other fans may not stop
Rotate, because electronic equipment is typically only capable to detect the rotating speed of one of fan）, then the conducting of these driving signal work periods
Rate can also be stopped reduction, that is, the on-state rate of these driving signal work periods can be maintained at 25 percent；However,
The problem of this can produce one very big：Because each fan has error, therefore the wind detected unavoidably when making
Fan is stopped operating when can be reduced to 25 percent by the on-state rate of driving signal work period, but other fans may be wanted also
Less than 25 percent, such as 1 18 can just stop operating；And the now conducting of these driving signal work periods
Rate is stopped reduction and will be unable to stop the fan of needs such as more as little as less than 1 18 to maintain 25 percent
Rotation stop is moved.
Utility model content
The technical problems to be solved in the utility model is that there is provided a kind of improved type fan according to above-mentioned the deficiencies in the prior art
Drive device.
The technical solution of the utility model is as follows：
A kind of improved type fan drive device, applied to multiple fan assemblys, the fan assembly is electrically connected to described
Improved type fan drive device, the improved type fan drive device, it is characterised in that include：
One rotation speed of the fan detecting unit；And a fans drive control unit, the fans drive control unit is electrically connected with
To the rotation speed of the fan detecting unit and the fan assembly；After the fan assembly power-off, the fan assembly is because inertially
Rotate so that the rotation speed of the fan detecting unit detects the fan assembly and inertially rotates to produce fan rotation news
Number；The rotation speed of the fan detecting unit transmits the fan and rotates signal to the fans drive control unit；When the fan
Drive control unit receives the fan and rotates signal and when the fan assembly is required power-off, the fans drive control
The on-state rate of multiple driving signal work periods of the unit reduction to drive the fan assembly.
Further, a fans drive power subsystem is also included, the fans drive power subsystem is electrically connected to institute
State fans drive control unit.
Further, an Auxiliary Power Units are also included, the Auxiliary Power Units are electrically connected to the fan and driven
Dynamic control unit；When the fans drive control unit is received, the fan rotates signal and the fan assembly is required to break
When electric, the fans drive control unit utilizes the power supply of the Auxiliary Power Units to drive during the acquiescence of fan assembly one
Between.
Further, the rotation speed of the fan detecting unit is a Hall sensing component.
Further, it is a Digital Square-Wave signal that the fan, which rotates signal,.
Further, the driving signal is pulse wave width modulation signal.
Compared with prior art, the utility model has the advantages that：The utility model utilizes and is detected rotating speed
Because inertially rotating and rotation speed of the fan detecting unit after fan power-off（Such as Hall sensing component）Produced by mutual induction it
The on-state rate that fan rotates driving signal work period of the signal with lasting reduction to drive all fans is all to ensure
Fan can stop operating really when being required power-off；Meanwhile, continue to rotate to help to radiate after fan power-off.
Brief description of the drawings
Fig. 1 is first embodiment block diagram of the present utility model.
Fig. 2 is second embodiment block diagram of the present utility model.
Fig. 3 is 3rd embodiment block diagram of the present utility model.
Fig. 4 is an embodiment oscillogram of the utility model Digital Square-Wave signal.
Fig. 5 is the embodiment oscillogram that the utility model fan rotates signal.
Reference
10th, improved type fan drive device, 20, fan assembly, 102, rotation speed of the fan detecting unit,
104th, fans drive control unit, 106, driving signal, 108, fans drive power subsystem,
110th, Auxiliary Power Units, FG, fan rotation signal, N, the magnet arctic,
S, the magnet South Pole, t1, first time point, t2, the second time point.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
Fig. 1 is refer to, it is the first embodiment block diagram of the improved type fan drive device for the utility model.As schemed
The improved type fan drive device 10 of the utility model shown in 1 is the electricity of fan assembly 20 applied to multiple fan assemblys 20
Property be connected to the improved type fan drive device 10, the fan assembly 20 include multiple magnet arctic N and multiple magnet South Pole S.
The improved type fan drive device 10 includes a rotation speed of the fan detecting unit 102 and a fans drive control unit 104, the fan
Drive control unit 104 is electrically connected to the rotation speed of the fan detecting unit 102 and the fan assembly 20.When 20 turns of the fan assembly
When dynamic, magnetic and the rotation speed of the fan detecting unit 102（Such as Hall sensing component）Phase-switching is made in mutual induction, can produce numeral
Square-wave signal, the rotating speed of the frequency representative of this Digital Square-Wave signal fan assembly 20 thereby learns turning for the fan assembly 20
Speed is to carry out follow-up adjustment of rotational speed to adjust radiating；Fig. 4 is refer to, it is for one of Digital Square-Wave signal of the utility model reality
Apply an oscillogram.
Specific embodiment as shown in Figure 1, after the fan assembly 20 power-off, because the fan assembly 20 is inertially rotated
Or because the of short duration electric discharge relation of peripheral applications circuit allows the fan assembly 20 to rotate so that the rotation speed of the fan detecting unit 102 is detectd
The fan assembly 20 is measured inertially to rotate to produce fan rotation signal FG, that is, magnetic and the rotation speed of the fan detecting unit
102（Such as Hall sensing component）There is the of short duration time to make mutual induction Phase-switching and rotate signal FG to produce the fan；The wind
It is of short duration Digital Square-Wave signal that fan, which rotates signal FG, and its output frequency can be applied to the control application of many fans of system end；
Fig. 5 is refer to, it is to rotate one of signal embodiment oscillogram for the fan of the utility model；A first time point t1 it
Before, the fan assembly 20 receives power supply normal rotation；After first time point t1, the fan assembly 20 is de-energized；At this
Between first time point t1 and one second time point t2, it is of short duration Digital Square-Wave signal that the fan, which rotates signal FG, and it is led
The logical time gradually decreases；After second time point t2, i.e., exported without any signal.
Specific embodiment as shown in Figure 1, then the rotation speed of the fan detecting unit 102 transmit the fan and rotate signal FG extremely
The fans drive control unit 104；When the fans drive control unit 104 is received, the fan rotates signal FG and the fan is filled
Put 20 and be required that the fans drive control unit 104 reduces to drive multiple driving signals of the fan assembly 20 when powering off
106 work period（duty cycle）On-state rate.The utility model is i.e. by lasting reduction to drive the fan assembly
20 it is multiple driving signals 106 work period on-state rate with ensure all fans be required power-off when can stop really
Rotate.
In a specific embodiment, the rotation speed of the fan detecting unit 102 shown in Fig. 1 only detects the fan assembly 20 of centre
Rotating speed；When the fan assembly 20 is required power-off（For example when total system will shut down）, the fans drive control unit 104
The on-state rate of the work period of the driving signal 106 is gradually decreased, the on-state rate of such as work period drops from 90 percent
As little as 80 percent, 70 percent is reduced to from 80 percent, by that analogy, until the fans drive control unit
The fan assembly 20 of 104 centres for detecting Fig. 1 by the rotation speed of the fan detecting unit 102 has stopped operating, that is, can not
Continue to produce continuous Digital Square-Wave signal as shown in Figure 4；The on-state rate for being assumed to be the work period is reduced to 20 percent
Five make the fan assembly 20 of Fig. 1 centre stop operating.
Now, for foregoing correlation technique, the on-state rate of the work period of the driving signal 106 is to be fixed
No longer decline for 25 percent, because system thinks that fan has been off not being rotated further by；In fact, because of system only
The rotating speed of a fan can be detected, so the fan being detected shows and stopped operating, other fans have not been represented also
Stop operating.
For example, the fan assembly 20 on the left side shown in Fig. 1 can quilt when the on-state rate of work period is 32 percent
Stop operating, then the on-state rate of above-mentioned work period 25 percent can stop the fan assembly 20 on the left side shown in Fig. 1
Rotate, problem will not be produced；But, such as the fan assembly 20 on the right is if necessary to the conducting in the work period shown in Fig. 1
Rate just stops operating when being 1 18, for foregoing correlation technique, will produce problem, that is, right shown in Fig. 1
The fan assembly 20 on side can not positively stop operating.
However, the improved practice of the present utility model is, continue with as shown in Figure 5 between first time point t1 with
Signal between second time point t2（The fan produced by inertially being rotated using the fan assembly 20 after powering off is rotated
Signal FG）；As long as the fans drive control unit 104 persistently receive as shown in Figure 5 between first time point t1 and this
Signal between two time point t2（I.e. the fan rotates signal FG）, the fans drive control unit 104 persistently reduces the drive
The on-state rate of the work period of dynamic signal 106, such as when being reduced to 1 18 again, you can make the wind on the right shown in Fig. 1
Fan device 20 stops operating；The on-state rate that notice persistently reduces the work period of the driving signal 106 may be than above-mentioned percent
18 is lower, and such as little as 10.Although the fan assembly 20 has error, it should be unlikely to excessive（For example above-mentioned leads
Passband 32 percent, 25 percent and 1 18 stops operating）, therefore as shown in Figure 5 between this first when
Between time between point t1 and second time point t2 fans drive control unit 104 should be able to be made fully to reduce driving news
The on-state rate of numbers 106 work period is to meet the need for ensuring that all fans can stop operating really when being required power-off
Ask.
Specific embodiment as shown in Figure 1, the rotation speed of the fan detecting unit 102 can be for example but the utility model is not limited
For a Hall（Hall）Sensing component；Fan rotation signal FG can be for example but the utility model is not limited to a Digital Square-Wave
Signal；The driving signal 106 can be for example but the utility model is not limited to pulse wave width modulation（pulse width
Modulation, often referred to simply as PWM）Signal.Furthermore, after the fan assembly 20 power-off, the fan assembly 20 inertially turns
The dynamic duration is for example but the utility model is not limited to the length depending on discharge time, such as seven seconds to eight seconds
Clock.
Fig. 2 is refer to, it is the second embodiment block diagram of the improved type fan drive device for the utility model.As schemed
The improved type fan drive device 10 of the utility model shown in 2 is the electricity of fan assembly 20 applied to multiple fan assemblys 20
Property be connected to the improved type fan drive device 10, the fan assembly 20 include multiple magnet arctic N and multiple magnet South Pole S.
The improved type fan drive device 10 includes a rotation speed of the fan detecting unit 102, a fans drive control unit 104 and a fan
Driving power supply unit 108, the fans drive control unit 104 is electrically connected to the rotation speed of the fan detecting unit 102 and the fan
Device 20, the fans drive power subsystem 108 is electrically connected to the fans drive control unit 104.
Specific embodiment as shown in Figure 2, the rotation speed of the fan detecting unit 102 can be for example but the utility model is not limited
For a Hall（Hall）Sensing component；Fan rotation signal FG can be for example but the utility model is not limited to a Digital Square-Wave
Signal；The driving signal 106 can be for example but the utility model is not limited to pulse wave width modulation（pulse width
Modulation, often referred to simply as PWM）Signal.Furthermore, after the fan assembly 20 power-off, the fan assembly 20 inertially turns
The dynamic duration is for example but the utility model is not limited to the length depending on discharge time, such as seven seconds to eight seconds
Clock.Remaining shown in Fig. 2 describes person similar to Fig. 1, is succinct factor, therefore repeated no more in this.
Fig. 3 is refer to, it is the 3rd embodiment block diagram of the improved type fan drive device for the utility model.As schemed
The improved type fan drive device 10 of the utility model shown in 3 is the electricity of fan assembly 20 applied to multiple fan assemblys 20
Property be connected to the improved type fan drive device 10, the fan assembly 20 include multiple magnet arctic N and multiple magnet South Pole S.
The improved type fan drive device 10 includes a rotation speed of the fan detecting unit 102, a fans drive control unit 104 and an auxiliary
Power subsystem 110, the fans drive control unit 104 is electrically connected to the rotation speed of the fan detecting unit 102 and the fan assembly
20, the Auxiliary Power Units 110 are electrically connected to the fans drive control unit 104.
Specific embodiment as shown in Figure 3, the rotation speed of the fan detecting unit 102 can be for example but the utility model is not limited
For a Hall（Hall）Sensing component；Fan rotation signal FG can be for example but the utility model is not limited to a Digital Square-Wave
Signal；The driving signal 106 can be for example but the utility model is not limited to pulse wave width modulation（pulse width
Modulation, often referred to simply as PWM）Signal.Furthermore, after the fan assembly 20 power-off, the fan assembly 20 inertially turns
The dynamic duration is for example but the utility model is not limited to the length depending on discharge time, such as seven seconds to eight seconds
Clock.Remaining shown in Fig. 3 describes person similar to Fig. 1, is succinct factor, therefore repeated no more in this.
When the fans drive control unit 104 is received, the fan rotates signal FG and the fan assembly 20 is required power-off
When, the fans drive control unit 104 using the power supply of the Auxiliary Power Units 110 with drive the fan assembly 20 1 give tacit consent to when
Between.
Another effect of the utility model continues to rotate to help to radiate after being fan power-off；For example, general notebook
After computer shutdown, fan is directly to cut off, but the utility model continues by that can receive fan rotation signal FG to utilize
The power supply of the Auxiliary Power Units 110（For example but the utility model be not limited to utilize capacitor charge and discharge mode）To drive the wind
The default time of fan device 20（For example but the utility model is not limited to determine time length using capacitor charge and discharge mode）With
Help is radiated.
The effect of the utility model, which is to utilize, to be detected after the power-off of the fan of rotating speed because inertially rotating and fan turn
Fast detecting unit（Such as Hall sensing component）Fan produced by mutual induction rotates signal with lasting reduction to drive
The on-state rate of the work period of the driving signal of some fans with ensure all fans be required power-off when can stop really
Rotate.Another effect of the utility model continues to rotate to help to radiate after being fan power-off.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claim still belong to the scope that the utility model is covered.
Claims (6)
1. a kind of improved type fan drive device, applied to multiple fan assemblys, the fan assembly is electrically connected to described change
Good figure fan drive device, the improved type fan drive device, it is characterised in that include：
One rotation speed of the fan detecting unit；And a fans drive control unit, the fans drive control unit is electrically connected to institute
State rotation speed of the fan detecting unit and the fan assembly；After fan assembly power-off, the fan assembly because inertially rotating,
Inertially rotate to produce fan rotation signal so that the rotation speed of the fan detecting unit detects the fan assembly；It is described
Rotation speed of the fan detecting unit transmits the fan and rotates signal to the fans drive control unit；When fans drive control
Unit receives the fan and rotates signal and when the fan assembly is required power-off, the fans drive control unit reduction
To the on-state rate for the multiple driving signal work periods for driving the fan assembly.
2. a kind of improved type fan drive device according to claim 1, it is characterised in that：Also include a fans drive
Power subsystem, the fans drive power subsystem is electrically connected to the fans drive control unit.
3. a kind of improved type fan drive device according to claim 1, it is characterised in that：Also include an accessory power supply
Unit, the Auxiliary Power Units are electrically connected to the fans drive control unit；When the fans drive control unit connects
Receive the fan and rotate signal and when the fan assembly is required power-off, the fans drive control unit is using described auxiliary
The power supply of power subsystem is helped to drive the default time of fan assembly one.
4. a kind of improved type fan drive device according to claim 1, it is characterised in that：The rotation speed of the fan detecting is single
Member is a Hall sensing component.
5. a kind of improved type fan drive device according to claim 1, it is characterised in that：The fan rotates signal
One Digital Square-Wave signal.
6. a kind of improved type fan drive device according to claim 1, it is characterised in that：The driving signal is pulse wave
Width modulation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071590.6U CN206582157U (en) | 2017-01-20 | 2017-01-20 | A kind of improved type fan drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071590.6U CN206582157U (en) | 2017-01-20 | 2017-01-20 | A kind of improved type fan drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206582157U true CN206582157U (en) | 2017-10-24 |
Family
ID=60110748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720071590.6U Active CN206582157U (en) | 2017-01-20 | 2017-01-20 | A kind of improved type fan drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206582157U (en) |
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2017
- 2017-01-20 CN CN201720071590.6U patent/CN206582157U/en active Active
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