CN203675022U - Fan motor control device - Google Patents
Fan motor control device Download PDFInfo
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- CN203675022U CN203675022U CN201320745990.2U CN201320745990U CN203675022U CN 203675022 U CN203675022 U CN 203675022U CN 201320745990 U CN201320745990 U CN 201320745990U CN 203675022 U CN203675022 U CN 203675022U
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Abstract
The utility model relates to a fan motor control device, comprising a zero crossing point detection unit, a phase control unit, an operation processing unit, a first rectification component, and a second rectification component. The zero crossing point detection unit generates a synchronous reference signal to the phase control unit. The phase control unit generates a phase control signal to the operation processing unit. The operation processing unit generates a processing signal which starts the motor and transmits the signal to the first rectification component and the second rectification component, and the fan motor is driven, wherein the phase control unit can control output power and rotating speed, so that rotating speed of the fan is improved, and better heat radiation and air exhausting effects are achieved.
Description
Technical field
The present invention relates to a kind of fan motor control device, relate in particular to one and can effectively promote rotation speed of the fan, to reach the fan motor control device of the effect with better heat radiation and air draft.
Background technology
Along with scientific and technological progress, people also increase for the dependence of various electronic equipments thereupon; But the inner element of electronic equipment (as computer, mobile computer) can produce high heat in the time of operation, if cannot in time heat be derived outside electronic equipment, easily produce overheated problem.
Wherein taking computer as example, its inner heat generating member is as central processing unit (Central Processing Unit, or power supply unit (Power Supply) etc. CPU), so when computer is in the time operating, the high temperature that in it, described central processing unit (CPU) produces under high-speed computation is processed, can allow described central processing unit be absorbed in unsure state, the lighter produces and works as machine, seriously can burn or damage central processing unit, therefore, be generally at present the problem that solves heat radiation, at least one radiator fan is set in computer, by aforementioned radiator fan, described central processing unit forced heat radiation is exported to rapidly to the external world by aforementioned heat rapidly.
And general radiator fan has the single phase alternating current (A.C.) of use motor, with monocyclic-start induction motor, single phase poaer supply also cannot produce rotating magnetic field, the magnetic field of its generation is the magnetic field of size variation, but therefore direction can not change cannot starter, therefore by alternating current by the stator coil of motor, the magnetic field producing not is a fixing magnetic field, but the varying magnetic field of the time to time change N utmost point and the S utmost point, utilize this characteristic, can allow surrounding magnetic field at different time, different position drive rotor through design, make its continuous running;
Start so single phase poaer supply must be changed into two-phase in monocyclic-start induction motor, therefore in monocyclic-start induction motor, have two-phase winding at least, and change into two-phase and be called phase-splitting single-phase, and general conventional phase-splitting mode is capacitor start formula;
And the primary structure of its condenser type motor is exactly two-phase alternating current motor, be mainly to there is the phase shift effect of line via additional electric capacity that fit over of silicon steel sheet and coil, the power supply on its electromagnet forming has just produced phase difference and has made motor rotation;
But general its energy conversion efficiency of condenser type motor is poor, and under main element silicon steel sheet, coil, capacity cell and voltage are fixing state simultaneously, the rotating speed of its condenser type motor cannot promote and power output cannot be according to demand control, and then affects the effect of its heat radiation and air draft.
Summary of the invention
Therefore,, for effectively addressing the above problem, main purpose of the present invention is to provide a kind of and promotes rotation speed of the fan and reach the fan motor control device with better heat radiation and air draft effect.
Secondary objective of the present invention, is to provide a kind of rectification and filter circuit that power supply input is used that save, to save the fan motor control device of circuit board usage space.
For reaching above-mentioned purpose, the invention provides a kind of fan motor control device, comprising: a zero crossing detecting unit, produces and have a synchronous baseline signal after power supply; One phase control unit, for connecting this zero crossing detecting unit and receiving described synchronous base signal, and produces the phase control signal that can control power output and rotating speed according to described synchronous base signal; One operation processing unit is connect this phase control unit and produce and have a processing signal according to described phase control signal; One first rectifier cell is to connect this operation processing unit and send one first phase place signal to First Line coil unit according to described processing signal; And one second rectifier cell, for connecting this operation processing unit and sending one second phase place signal to the second coil unit according to described processing signal, and according to described the first phase place signal and the second phase place signal fan motor.
Preferably, described the first phase place signal and the second phase place signal are anti-phase signal.
Preferably, described the first phase place signal and this second phase place signal are with only there being one group of phase place signal can export and drive described fan motor in the time.
Preferably, described the first rectifier cell and the second rectifier cell are thyristor SCR (silicon controlled rectifier).
Preferably, also include a power supply output unit, extremely described zero crossing detecting unit of this power supply output unit supply power supply, and send a square-wave signal to described zero crossing detecting unit simultaneously.
Preferably, described phase control unit receives described synchronous base signal and acts on an AC sine wave, and control the size of voltage according to the angle of flow of described synchronous base signal change AC sine wave, and then produce the phase control signal that can control power output and rotating speed.
Preferably, also include a temperature sensing unit, this temperature sensing unit can be detected external temperature and produce a temperature sensing signal to described operation processing unit, and this operation processing unit is carried out computing and produced described processing signal according to described phase control signal and described temperature sensing signal.
Preferably, also include a position detection unit, this location sensing unit can be detected motor running stop place and produce a position probing signal to described operation processing unit, and the described phase control signal of this foundation of this operation processing unit and described position probing signal carry out computing and produce described processing signal.
Whereby by the effect of phase control unit control power output of the present invention and rotating speed, and then reach the effect that can promote rotation speed of the fan and there is better heat radiation and air draft.
Brief description of the drawings
Fig. 1 is the block schematic diagram of the first preferred embodiment of the present invention;
Fig. 2 is the block schematic diagram of the second preferred embodiment of the present invention;
Fig. 3 is the block schematic diagram of the 3rd preferred embodiment of the present invention.
Symbol description
Fan motor control device 1
Zero crossing detecting unit 11
The first rectifier cell 141
The second rectifier cell 142
First Line coil unit 151
The second coil unit 152
Power supply output unit 16
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Characteristic in above-mentioned purpose of the present invention and structure thereof and function, will be explained according to appended graphic preferred embodiment.
A kind of fan motor control device 1, referring to Fig. 1 is the block schematic diagram that shows one first preferred embodiment of the present invention, aforementioned fan motor control device 1 includes a zero crossing detecting unit 11, one phase control unit 12, one operation processing unit 13, one first rectifier cell 141 and one second rectifier cell 142, this zero crossing detecting unit 11 is to be electrically connected described phase control unit 12, this phase control unit 12 is separately electrically connected to described operation processing unit 13, this operation processing unit 13 is electrically connected described the first rectifier cell 141 and described the second rectifier cell 142 simultaneously, this is first years old, two rectifier cells are separately electrically connected with respectively a First Line coil unit 151 and the second coil unit 152,
Again, wherein said fan motor control device 1 has more a power supply output unit 16 for being electrically connected described zero crossing detecting unit 11, and this power supply output unit 16 is for supply power supply is to described zero crossing detecting unit 11, and send a square-wave signal to described zero crossing detecting unit 11 in the time of supply power supply simultaneously, this zero crossing detecting unit 11 is carried out and is detected voltage over zero, by voltage positive half period and negative half-cycle and just, negative zero crossing sends positive square wave and positive pulse signal and sends a synchronous baseline signal, its synchronous base signal can offer rear end as synchronous benchmark,
Therefore, described synchronous base signal is delivered to described phase control unit 12, its synchronous base signal is acted on AC sine wave by this phase control unit 12, and change the sinusoidal wave angle of flow and control the size of voltage, and then can regulation output voltage and the size of power, therefore, described phase control unit 12 receives described synchronous base signal and acts on an AC sine wave, and control the size of voltage according to the angle of flow of described synchronous base signal change AC sine wave, and then produce the phase control signal that can control power output and rotating speed;
The phase control signal that described phase control unit 12 produces is for delivering to described operation processing unit 13, this operation processing unit 13 is a central processing unit (MCU), and this operation processing unit 13 receives described phase control signal and the parameter being obtained by phase control signal is carried out to computing and produced the processing signal of a starter;
Processed again signal and delivered to described one first rectifier cell 141 and described the second rectifier cell 142, wherein said the first rectifier cell 141 and described the second rectifier cell 142 are thyristor SCR (silicon controlled rectifier), and replace the known rectification being used and filter circuit with the first rectifier cell 141 and described the second rectifier cell 142, to save circuit board usage space;
And its first rectifier cell 141 is sent one first phase place signal according to described processing signal, and its first phase place signal is delivered to the described First Line coil unit 151 of electric connection, and this second rectifier cell 142 is sent one second phase place signal according to described processing signal simultaneously, and its second phase place signal is delivered to described second coil unit 152 of electric connection, wherein said the first phase place signal and the second phase place signal are anti-phase signal, and its first phase place signal and its second phase place signal are with only there being one group of phase place signal to export in the time, and the first phase place signal of its output produces mutual exclusion with fan motor and makes fan or revolution with the fixed magnet of its corresponding motor of the second phase place signal inside, whereby, control the effect of power output and rotating speed by phase control unit 12 of the present invention, and then reach the effect that can promote rotation speed of the fan and there is better heat radiation and air draft.
Referring to the 2nd figure is to show the second preferred embodiment block schematic diagram of the present invention, the primary structure of this preferred embodiment and connection relationship and effect thereof are roughly identical with aforementioned the first preferred embodiment, therefore again do not repeat at this, its both differences be in: wherein said fan motor control device 1 also includes a temperature sensing unit 17, this temperature sensing unit 17 can be detected external temperature and produce a temperature sensing signal to described operation processing unit 13, the parameter that this operation processing unit 13 produces according to described phase control signal and described temperature sensing signal is carried out computing and is produced described processing signal, can adjust required rotation speed of the fan via detecting external temperature in order to do making this fan motor control device 1, and then reach the effect person with better heat radiation and air draft.
Referring to the 3rd figure is to show the 3rd preferred embodiment block schematic diagram of the present invention, the primary structure of this preferred embodiment and connection relationship and effect thereof are roughly identical with aforementioned the first preferred embodiment, therefore again do not repeat at this, its both differences be in: wherein said fan motor control device 1 also includes position detection unit 18, this location sensing unit can be detected last time motor running stop place and produce a position probing signal to described operation processing unit 13, this operation processing unit described phase control signal of 13 this foundation and described position probing signal carry out computing and produce described processing signal, and then to control its fan motor control device 1 be with First Line coil unit 151 or the initial running of the second coil unit 152.
In sum, the present invention has a following advantages compared to known:
Can promote rotation speed of the fan;
There is better heat radiation and air draft effect;
Save circuit board usage space.
Although the present invention discloses as above with execution mode; so it is not in order to limit the present invention, any person skilled in the art person, without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, therefore protection scope of the present invention is worked as with standard that claims are decided to be.
Claims (8)
1. a fan motor control device, is characterized in that, comprising:
One zero crossing detecting unit, produces and has a synchronous baseline signal after power supply;
One phase control unit, connects this zero crossing detecting unit and receives described synchronous base signal, and produces according to described synchronous base signal the phase control signal that can control power output and rotating speed;
One operation processing unit is to connect this phase control unit and produce to have a processing signal;
One first rectifier cell is to connect this operation processing unit and send one first phase place signal to First Line coil unit according to described processing signal; And
One second rectifier cell, is to connect this operation processing unit and send one second phase place signal to the second coil unit according to described processing signal, and according to described the first phase place signal and the second phase place signal fan motor.
2. fan motor control device as claimed in claim 1, is characterized in that, described the first phase place signal and the second phase place signal are anti-phase signal.
3. fan motor control device as claimed in claim 1, is characterized in that, described the first phase place signal and this second phase place signal are with only there being one group of phase place signal can export and drive described fan motor in the time.
4. fan motor control device as claimed in claim 1, is characterized in that, described the first rectifier cell and the second rectifier cell are thyristor.
5. fan motor control device as claimed in claim 1, is characterized in that, also includes a power supply output unit, extremely described zero crossing detecting unit of this power supply output unit supply power supply, and send a square-wave signal to described zero crossing detecting unit simultaneously.
6. fan motor control device as claimed in claim 5, it is characterized in that, described phase control unit receives described synchronous base signal and acts on an AC sine wave, and control the size of voltage according to the angle of flow of described synchronous base signal change AC sine wave, and then produce the phase control signal that can control power output and rotating speed.
7. fan motor control device as claimed in claim 1, it is characterized in that, also include a temperature sensing unit, this temperature sensing unit can be detected external temperature and produce a temperature sensing signal to described operation processing unit, and this operation processing unit is carried out computing and produced described processing signal according to described phase control signal and described temperature sensing signal.
8. fan motor control device as claimed in claim 1, it is characterized in that, also include a position detection unit, this location sensing unit can be detected motor running stop place and produce a position probing signal to described operation processing unit, and the described phase control signal of this foundation of this operation processing unit and described position probing signal carry out computing and produce described processing signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745990.2U CN203675022U (en) | 2013-11-21 | 2013-11-21 | Fan motor control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745990.2U CN203675022U (en) | 2013-11-21 | 2013-11-21 | Fan motor control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203675022U true CN203675022U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745990.2U Expired - Fee Related CN203675022U (en) | 2013-11-21 | 2013-11-21 | Fan motor control device |
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| CN (1) | CN203675022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660123A (en) * | 2013-11-21 | 2015-05-27 | 奇鋐科技股份有限公司 | Fan motor control device |
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2013
- 2013-11-21 CN CN201320745990.2U patent/CN203675022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660123A (en) * | 2013-11-21 | 2015-05-27 | 奇鋐科技股份有限公司 | Fan motor control device |
| CN104660123B (en) * | 2013-11-21 | 2017-07-28 | 奇鋐科技股份有限公司 | Fan motor control device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20171121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |