CN209523909U - A kind of voltage-controlled fan motor forward and reverse driving device - Google Patents
A kind of voltage-controlled fan motor forward and reverse driving device Download PDFInfo
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- CN209523909U CN209523909U CN201821881213.XU CN201821881213U CN209523909U CN 209523909 U CN209523909 U CN 209523909U CN 201821881213 U CN201821881213 U CN 201821881213U CN 209523909 U CN209523909 U CN 209523909U
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- fan motor
- voltage
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- driving
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Abstract
The utility model provides a kind of voltage-controlled fan motor forward and reverse driving device, includes a fan motor driving circuit, a fan motor forward and reverse signal generating circuit and a variable drive voltage supply circuit；The fan motor forward and reverse signal generating circuit includes a switch unit.When a driving voltage is greater than a default voltage, which detects ground through the switch unit, and then the fan motor driving circuit drives a fan motor device to rotate towards a first direction；When the driving voltage is not more than the default voltage, the switch unit is not turned on, so that the fan motor driving circuit detects the driving voltage through the fan motor forward and reverse signal generating circuit, then the fan motor driving circuit drives the fan motor device to rotate towards a second direction.
Description
Technical field
The utility model is about a kind of fan motor forward and reverse driving device, especially a kind of voltage-controlled fan
Motor forward and reverse driving device.
Background technique
Fan is a kind of very common electronic device, the temperature of human body or electronic product can be made to decline, therefore fan
It is very important.Fan is easy to accumulate dust in fan blade after being used for a long time, and the efficiency of fan drops in dust
It is low；Therefore, how to remove the dust of fan is current important topic.Later, having then can be automatically except the fan of dust be ground
Hair is the reversion of the advanced line number second when fan just starts mostly then to be rotated forward again except dust；However, fan
Time of reversion may be insufficient so that dust removing effects are bad or user be intended to the fan that will be being rotated forward once again into
Row reversion is with dedusting once again, but aforementioned fan is very unfortunate without this function at this time.
Utility model content
The technical problems to be solved in the utility model is provided a kind of voltage-controlled according to above-mentioned the deficiencies in the prior art
Fan motor forward and reverse driving device can arbitrarily control fan motor forward or reverse, to carry out fan at any time
The dedusting of blade.
The technical solution of the utility model is as follows:
A kind of voltage-controlled fan motor forward and reverse driving device is applied to a fan motor device, the fan
Motor forward and reverse control device includes:
One fan motor driving circuit, the fan motor driving circuit are electrically connected to the fan motor device；
One fan motor forward and reverse signal generating circuit, the fan motor forward and reverse signal generating circuit are electrical
It is connected to the fan motor driving circuit；And
One variable drive voltage supply circuit, the variable drive voltage supply circuit are electrically connected to fan motor driving
Circuit and the fan motor forward and reverse signal generating circuit,
Wherein the fan motor forward and reverse signal generating circuit includes:
One divider resistance sub-circuit, which is electrically connected to the fan motor driving circuit and this is variable
Driving voltage supply circuit；And
One switch unit, the switch unit are electrically connected to the fan motor driving circuit and the divider resistance sub-circuit,
Wherein the variable drive voltage supply circuit generates and adjusts a driving voltage；The variable drive voltage supply circuit
The driving voltage is transmitted to the fan motor driving circuit and the fan motor forward and reverse signal generating circuit to drive this
Fan motor driving circuit；
Wherein when the driving voltage is greater than a default voltage, which divides the driving voltage to be connected
The switch unit, so that the fan motor driving circuit detects ground through the switch unit, then fan motor driving is electric
Road drives the fan motor device to rotate towards a first direction；
Wherein when the driving voltage is not more than the default voltage, which is not turned on, so that the fan motor drives
Dynamic circuit detects the driving voltage through the fan motor forward and reverse signal generating circuit, and then the fan motor drives
The circuit drives fan motor device is rotated towards a second direction.
Further, which is 9 volts, which is a forward rotation direction, which is a reversion
Direction.
Further, which is 15 volts, which is a reverse directions, which is a rotating forward
Direction.
Further, which includes:
One driving voltage receiving end, the driving voltage receiving end are electrically connected to fan motor forward and reverse signal production
Raw circuit and the variable drive voltage supply circuit；
One positive and negative rotation triggering end, the positive and negative rotation triggering end are electrically connected to the switch unit；And
One drive output, the drive output are electrically connected to the fan motor device.
Further, a first resistor, one end of the first resistor are electrically connected to the fan motor driving circuit and should
Variable drive voltage supply circuit, the other end of the first resistor are electrically connected to the switch unit；And
One second resistance, one end of the second resistance are electrically connected to the other end and the switch unit of the first resistor,
The other end of the second resistance is connected to the ground.
Further, which further includes: a 3rd resistor, the 3rd resistor
One end be electrically connected to the fan motor driving circuit and the variable drive voltage supply circuit, the other end of the 3rd resistor
It is electrically connected to the fan motor driving circuit and the switch unit.
Further, which further includes: a first capacitor, the first capacitor
One end be electrically connected to one end of the other end of the first resistor, the switch unit and the second resistance, the first capacitor
The other end is connected to the ground.
Further, which further includes: one second capacitor, second capacitor
One end be electrically connected to the other end and the fan motor driving circuit of the switch unit, the 3rd resistor, second capacitor
The other end be connected to the ground.
Further, which is a N-type MOS field-effect transistor or a bipolar npn junction crystal
Pipe.
Further, which is a single-phase motor driver or a three-phase motor driver.
Compared with prior art, the utility model has the following beneficial effects: can arbitrarily control fan motor rotate forward or
Reversion, to carry out the dedusting of fan blade at any time.
Detailed description of the invention
Fig. 1 is the square of the first embodiment of the voltage-controlled fan motor forward and reverse driving device of utility model
Figure.
Fig. 2 is the square of the second embodiment of the voltage-controlled fan motor forward and reverse driving device of utility model
Figure.
Fig. 3 is the rotation of the driving voltage of utility model, the voltage of the positive and negative rotation triggering end and the fan motor device
The comparative diagram of state.
Appended drawing reference
The voltage-controlled fan motor forward and reverse driving device of 10-, 20- fan motor device, 102- fan motor
Driving circuit, 104- fan motor forward and reverse signal generating circuit, 106- variable drive voltage supply circuit, 108- partial pressure
Resistance sub-circuit, 110- switch unit, 112- driving voltage, 1021- driving voltage receiving end, 1022- positive and negative rotation triggering end,
1023- drive output, C1- first capacitor, the second capacitor of C2-, R1- first resistor, R2- second resistance, R3- 3rd resistor,
T1- first interval, T2- second interval.
Specific embodiment
It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.
Referring to FIG. 1, its first reality for the voltage-controlled fan motor forward and reverse driving device of utility model
Apply the block diagram of example.The voltage-controlled fan motor forward and reverse driving device 10 of the one of utility model is applied to a fan horse
Up to device 20, the fan motor forward and reverse control device 10 include a fan motor driving circuit 102, a fan motor just
Turn and reverse signal generation circuit 104 and a variable drive voltage supply circuit 106；The fan motor forward and reverse signal produces
Raw circuit 104 includes a divider resistance sub-circuit 108, a switch unit 110, a 3rd resistor R3, a first capacitor C1 and one
Second capacitor C2；The fan motor driving circuit 102 include a driving voltage receiving end 1021, a positive and negative rotation triggering end 1022 and
One drive output 1023；The divider resistance sub-circuit 108 includes an a first resistor R1 and second resistance R2；Those above-mentioned groups
Part is electrically connected to each other.In Fig. 1, which is a N-type MOS field-effect transistor；The fan motor drives
Dynamic circuit 102 can be for example but the utility model is not limited to a single-phase motor driver or a three-phase motor driver.
The variable drive voltage supply circuit 106 generates and adjusts a driving voltage 112；Variable drive voltage supply electricity
It transmits the driving voltage 112 to fan motor driving circuit 102 and the fan motor forward and reverse signal and generates electricity in road 106
Road 104 is to drive the fan motor driving circuit 102.It in other words, should caused by the variable drive voltage supply circuit 106
Driving voltage 112 is to be sent to the fan motor driving circuit 102 through the driving voltage receiving end 1021 to drive the wind
Fan motor apparatus 20 forward or reverse；It is forward or reverse, then to depend on driving electricity as the fan motor driving circuit 102
The size of pressure 112, hereby details are as follows:
When the driving voltage 112 is greater than a default voltage, which divides the driving voltage 112
The switch unit 110 is connected, so that the fan motor driving circuit 102 detects ground through the switch unit 110, then should
Fan motor driving circuit 102 drives the fan motor device 20 to rotate towards a first direction；When the driving voltage 112 is not more than
When the default voltage, which is not turned on, so that the fan motor driving circuit 102 is rotated forward through the fan motor
The driving voltage 112 is detected with reverse signal generation circuit 104, then the fan motor driving circuit 102 drives the fan
Motor apparatus 20 is rotated towards a second direction.
Also that is, by circuit design appropriate, when the driving voltage 112 is greater than the default voltage, first resistor R1
The driving voltage 112 can be divided with second resistance R2 the switch unit 110 is connected, then the fan motor driving circuit
102 detect ground through the positive and negative rotation triggering end 1022 and the switch unit 110 be connected, finally the fan motor driving circuit
102 drive the fan motor device 20 to rotate towards the first direction through the drive output 1023；When the driving voltage 112 not
When greater than the default voltage, it is inadequate that first resistor R1 and second resistance R2 divides the obtained voltage of driving voltage 112
Greatly, therefore the switch unit 110 can not be switched on, so that the fan motor driving circuit 102 penetrates the positive and negative rotation triggering end
1022 detect the driving voltage 112 with 3rd resistor R3, and finally the fan motor driving circuit 102 is exported through the driving
End 1023 drives the fan motor device 20 to rotate towards the second direction.
The utility model may include two kinds of embodiments: in an embodiment, which is 9 volts, this first
Direction is a forward rotation direction, which is a reverse directions；In another embodiment, which is 15 volts,
The first direction is a reverse directions, which is a forward rotation direction.Regardless of the default voltage be 9 volts nearby, 15
It near volt or falls between, which can drive the fan motor device 20；This is practical
Novel i.e. utilization can drive the default voltage of the fan motor device 20 to require the fan motor driving circuit 102 to drive
The fan motor device 20 is forward or reverse.
Referring to FIG. 2, its second reality for the voltage-controlled fan motor forward and reverse driving device of utility model
Apply the block diagram of example；Component shown in Fig. 2 person identical as component shown in FIG. 1 is succinct factor, therefore is not repeated that it is chatted in this
It states；Fig. 2 is different in Fig. 1, and the switch unit 110 of Fig. 2 is a bipolar npn junction transistor.
Referring to FIG. 3, it is the driving voltage of utility model, the voltage of the positive and negative rotation triggering end and the fan motor fill
The comparative diagram for the rotation status set；The driving voltage 112 can be adjusted from low to high or from high to low.Please also refer to Fig. 1 with
Fig. 3, when the driving voltage 112 is not big enough (in a first interval T1), which can not be switched on, so that this is just
Reversion triggering end 1022 detects voltage through 3rd resistor R3, then the fan motor device 20 is to rotate forward according to foregoing teachings
(or reversion)；When the driving voltage 112 is enough big (in a second interval T2), which is switched on, so that this is positive and negative
Turn the ground connection of triggering end 1022, then the fan motor device 20 is reversion (or rotating forward) according to foregoing teachings.
The effect of utility model, is arbitrarily control fan motor forward or reverse, to carry out fan blade at any time
Dedusting.The utility model utilizes the size of the driving voltage 112 to determine the fan motor device 20 forward or reverse, but this reality
With it is novel for for example but be not limited to need not comprising size of the voltage detector to detect the driving voltage 112, this be because
For can judge the voltage detector voltage signal the fan motor driving circuit 102 price it is very expensive；However, this reality
With the fan motor driving circuit 102(of novel usable low price only transmit the positive and negative rotation triggering end 1022 judgement be ground connection or
There are voltages) the fan motor forward and reverse signal generating circuit 104 of arranging in pairs or groups.
Above disclosures are merely preferred embodiments of the utility model, the utility model cannot be limited with this certainly
Interest field, therefore equivalent variations made according to the claim of the utility model still fall within the scope of the utility model.
Claims (10)
1. a kind of voltage-controlled fan motor forward and reverse driving device, is applied to a fan motor device, feature exists
In the fan motor forward and reverse control device includes:
One fan motor driving circuit, the fan motor driving circuit are electrically connected to the fan motor device；
One fan motor forward and reverse signal generating circuit, the fan motor forward and reverse signal generating circuit are electrically connected
To the fan motor driving circuit；And
One variable drive voltage supply circuit, the variable drive voltage supply circuit are electrically connected to the fan motor driving circuit
And the fan motor forward and reverse signal generating circuit,
Wherein the fan motor forward and reverse signal generating circuit includes:
One divider resistance sub-circuit, the divider resistance sub-circuit are electrically connected to the fan motor driving circuit and the variable drive
Voltage supply circuit；And
One switch unit, the switch unit are electrically connected to the fan motor driving circuit and the divider resistance sub-circuit,
Wherein the variable drive voltage supply circuit generates and adjusts a driving voltage；Variable drive voltage supply circuit transmission
The driving voltage is to the fan motor driving circuit and the fan motor forward and reverse signal generating circuit to drive the fan
Motor drive circuit；
Wherein when the driving voltage is greater than a default voltage, which divides the driving voltage and is opened so that this is connected
Unit is closed, so that the fan motor driving circuit detects ground through the switch unit, then the fan motor driving circuit is driven
The fan motor device is moved to rotate towards a first direction；
Wherein when the driving voltage is not more than the default voltage, which is not turned on, so that fan motor driving electricity
Reuter crosses the fan motor forward and reverse signal generating circuit and detects the driving voltage, then the fan motor driving circuit
The fan motor device is driven to rotate towards a second direction.
2. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 1, which is characterized in that should
Default voltage is 9 volts, which is a forward rotation direction, which is a reverse directions.
3. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 1, which is characterized in that should
Default voltage is 15 volts, which is a reverse directions, which is a forward rotation direction.
4. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 1, which is characterized in that should
Fan motor driving circuit includes:
One driving voltage receiving end, the driving voltage receiving end are electrically connected to the fan motor forward and reverse signal and generate electricity
Road and the variable drive voltage supply circuit；
One positive and negative rotation triggering end, the positive and negative rotation triggering end are electrically connected to the switch unit；And
One drive output, the drive output are electrically connected to the fan motor device.
5. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 4, which is characterized in that should
Divider resistance sub-circuit includes:
One first resistor, one end of the first resistor is electrically connected to the fan motor driving circuit and the variable drive voltage supplies
Circuit is answered, the other end of the first resistor is electrically connected to the switch unit；And
One second resistance, one end of the second resistance are electrically connected to the other end and the switch unit of the first resistor, this
The other end of two resistance is connected to the ground.
6. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 5, which is characterized in that should
Fan motor forward and reverse signal generating circuit further includes: one end of a 3rd resistor, the 3rd resistor is electrically connected to this
Fan motor driving circuit and the variable drive voltage supply circuit, the other end of the 3rd resistor are electrically connected to the fan horse
Up to driving circuit and the switch unit.
7. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 6, which is characterized in that should
Fan motor forward and reverse signal generating circuit further includes: one end of a first capacitor, the first capacitor is electrically connected to this
The other end of one end of the other end of first resistor, the switch unit and the second resistance, the first capacitor is connected to the ground.
8. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 7, which is characterized in that should
Fan motor forward and reverse signal generating circuit further includes: one second capacitor, one end of second capacitor are electrically connected to this
Switch unit, the other end of the 3rd resistor and the fan motor driving circuit, the other end of second capacitor are connected to the ground.
9. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 1, which is characterized in that should
Switch unit is a N-type MOS field-effect transistor or a bipolar npn junction transistor.
10. a kind of voltage-controlled fan motor forward and reverse driving device according to claim 1, which is characterized in that
The fan motor driving circuit is a single-phase motor driver or a three-phase motor driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821881213.XU CN209523909U (en) | 2018-11-15 | 2018-11-15 | A kind of voltage-controlled fan motor forward and reverse driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821881213.XU CN209523909U (en) | 2018-11-15 | 2018-11-15 | A kind of voltage-controlled fan motor forward and reverse driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209523909U true CN209523909U (en) | 2019-10-22 |
Family
ID=68225734
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821881213.XU Active CN209523909U (en) | 2018-11-15 | 2018-11-15 | A kind of voltage-controlled fan motor forward and reverse driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209523909U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019101A (en) * | 2020-08-31 | 2020-12-01 | 中山大洋电机股份有限公司 | Reverse rotation dust removal control method of BLDC motor applied to air conditioner outdoor unit |
-
2018
- 2018-11-15 CN CN201821881213.XU patent/CN209523909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112019101A (en) * | 2020-08-31 | 2020-12-01 | 中山大洋电机股份有限公司 | Reverse rotation dust removal control method of BLDC motor applied to air conditioner outdoor unit |
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