CN204376804U - A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device - Google Patents
A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device Download PDFInfo
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- CN204376804U CN204376804U CN201420785105.8U CN201420785105U CN204376804U CN 204376804 U CN204376804 U CN 204376804U CN 201420785105 U CN201420785105 U CN 201420785105U CN 204376804 U CN204376804 U CN 204376804U
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Abstract
The utility model relates to a kind of motor speed regulation device for fan and applies fan and the fan electromotor of this device, and this motor speed regulation device for fan comprises ON-OFF control circuit, alignment circuit and starting circuit.First this device determines the torque force of motor by the phase shift effect of the starting capacitance in starting circuit, then carries out speed governing by alignment circuit to motor.Starting capacitance is that motor has been shared voltage and slow down the impulsive force of electric current to motor, and the torque force making motor current is in stable state, and fluctuation is reduced greatly.The utility model combines the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then carries out Based Intelligent Control by electronic speed regulation to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
Description
Technical field
The utility model relates to electric machine speed regulation field, particularly relates to a kind of motor speed regulation device for fan and applies fan and the fan electromotor of this device.
Background technology
The motor of fan is a kind of alternating current motor, and its operation principle is: realized by stressed in magnetic field of its hot-wire coil rotating.The rotating speed of alternating current motor is different, and the air force of generation is also different, and the air quantity produced to make fan meets people's instructions for use under various circumstances, is necessary to regulate and control the rotating speed of fan electromotor.In prior art, generally by the following method speed governing is carried out to the motor of fan:
(1) tap method: the motor due to tap speed-regulating has main winding, middle winding and auxiliary winding; Then tap rule utilizes tap to reduce the winding voltage of motor, thus weakens magnetic field intensity to realize speed governing.But the coiling of tap method, the line of fall and patching operations are all very complicated, and the scope of application is restricted, the rotating speed being not easy to motor switches, and service efficiency is lower.
(2) reactance method: reactance speed governing is the reactor by sealing in different induction reactance value, thus change winding voltage turns ratio realizes speed governing.Although it is simple that reactance method has coiling, advantage easy to maintenance, can make user at will cannot regulate the speed governing of motor; And due to the volume of reactance comparatively large, cause alignment circuit volume large, be not easy to install or transport.
(3) capacitance method: electric capacity governing is that the level of torque changing the generation of motor winding by changing the voltage phase angle relation indirect being added in auxiliary winding realizes speed governing.The advantage that cost is lower, lightweight although capacitance method has, electromagnetic noise is little, its useful life is short and low or first gear is difficult to startup.
(4) electronic method: electron speed regulator utilizes silicon controlled semiconductor principle, by changing the duty ratio being added to SCR control pole trigger impulse, control silicon controlled ON time and then realize controlling motor winding to obtain the time length of the torque of electric generation to realize speed governing.The feature that regulating effect is good although electron speed regulator has, the life-span is long, its cost is higher.Although electronic speed regulation method is widely used, because the existing controllable silicon that directly utilizes realizes fan electromotor speed governing, then the rear motor that is energized directly is subject to the impulsive force of electric current, shortens the useful life of motor; Simultaneously each device can the accelerated ageing due to arc phenomenon; Further, the existing circuit structure utilizing controllable silicon to realize speed governing is complicated, is unfavorable for safeguarding.
Utility model content
In order to overcome the shortcoming of prior art with not enough, first object of the present utility model is to provide a kind of motor speed regulation device for fan and applies fan and the fan electromotor of this device, combine the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, by electronic speed regulation, Based Intelligent Control is carried out to motor again, thus extend the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.Another two objects of the present utility model are to provide a kind of fan electromotor and the fan of applying said fans motor speed control device.
For reaching the first object of the present utility model, the utility model provides a kind of motor speed regulation device for fan, and it comprises ON-OFF control circuit, alignment circuit and starting circuit;
Described alignment circuit comprises triggering electric capacity, bidirectional trigger diode and bidirectional thyristor; Described triggering electric capacity one end is connected with bidirectional trigger diode one end with ON-OFF control circuit output simultaneously, and the other end is connected with the first main electrode of bidirectional thyristor; The other end of described bidirectional trigger diode is connected with the grid of bidirectional thyristor; Second main electrode of described bidirectional thyristor is connected with ON-OFF control circuit input;
Described starting circuit comprises the first start terminal, the second start terminal, starting capacitance and the 3rd start terminal; Described first start terminal connects with the one end connected with bidirectional thyristor in triggering electric capacity; Described second start terminal is connected with the second main electrode of bidirectional thyristor by described starting capacitance; Described 3rd start terminal is used for as zero line incoming end.
Described ON-OFF control circuit comprises at least two and is connected in parallel and the different switching branches of resistance.
Described ON-OFF control circuit comprises the first switching branches, second switch branch road and the 3rd switching branches that are connected in parallel; Described first switching branches comprises switch one and speed adjusting resistance one; Described second switch branch road comprises switch two and speed adjusting resistance two; Described 3rd switching branches comprises switch three and speed adjusting resistance three.
The resistance of described speed adjusting resistance one differs 0-75K Ω with the resistance of speed adjusting resistance two; The resistance of described speed adjusting resistance three and the resistance difference 10-35K Ω of speed adjusting resistance two.
The resistance of described speed adjusting resistance one is 0 Ω.
A current-limiting resistance is provided with between the one end be connected with the output of ON-OFF control circuit in described triggering electric capacity and the output of ON-OFF control circuit.
By ON-OFF control circuit and alignment circuit, achieve the switching of rotating speed; Utilize the speed adjusting resistance of every bar branch road in ON-OFF control circuit to change charging voltage pressure value and the charging interval at triggering electric capacity two ends, thus change the ON time of bidirectional trigger diode and bidirectional thyristor, change the output frequency of starting circuit; Due to starting circuit and the first start terminal, the second start terminal and the 3rd start terminal output to respectively in three power access ends of motor, then the frequency of supply of motor also can change; Reach change motor torque thus, realize the object of speed governing.In above process, motor speed regulation device for fan of the present utility model determines the torque force of motor by the phase shift effect of starting capacitance, by alignment circuit, speed governing is carried out to motor again, starting capacitance is that motor has been shared voltage and slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, fluctuation is reduced greatly, thus makes motor more durable.Therefore, the utility model combines the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then carries out Based Intelligent Control by electronic speed regulation to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
For reaching the second object of the present utility model, the utility model provides a kind of fan electromotor, comprises motor, motor speed regulation device for fan and electric fan.The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor.This motor speed regulation device for fan is the motor speed regulation device for fan described in above-mentioned any one.Because said fans motor speed control device has above-mentioned technique effect, so the fan electromotor comprising this motor speed regulation device for fan also has identical technique effect.
For reaching the 3rd object of the present utility model, the utility model additionally provides a kind of fan, comprises shell and is arranged on the fan electromotor in shell.Described fan electromotor comprises motor, motor speed regulation device for fan and electric fan; The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor.This motor speed regulation device for fan is the motor speed regulation device for fan described in above-mentioned any one.Because said fans motor speed control device has above-mentioned technique effect, so the fan comprising this motor speed regulation device for fan also has identical technique effect.
In order to understand better and implement, describe the utility model in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of motor speed regulation device for fan of the present utility model;
Fig. 2 be motor speed regulation device for fan of the present utility model access power supply and motor time electrical block diagram;
Fig. 3 is the packaged type of motor speed regulation device for fan of the present utility model in practical application and the wiring schematic diagram of the mode of connection.
Embodiment
The utility model provides a kind of motor speed regulation device for fan and applies fan electromotor and the fan of this device.Motor speed regulation device for fan of the present utility model combines the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then carries out Based Intelligent Control by electronic speed regulation to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
Fan of the present utility model comprises shell and is arranged on the fan electromotor in shell.
Described fan electromotor comprises motor, motor speed regulation device for fan and electric fan.The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor.
Particularly, refer to Fig. 1, described motor speed regulation device for fan comprises ON-OFF control circuit 1, alignment circuit 2 and starting circuit 3.The input access live wire of described ON-OFF control circuit 1; The input of described alignment circuit 2 is connected with the output of ON-OFF control circuit 1; Described starting circuit 3 has three input terminals, and wherein two input terminals connect with the output of alignment circuit 2, an other input terminal access zero line.
Described ON-OFF control circuit 1 comprises at least two and is connected in parallel and the different switching branches of resistance.In the present embodiment, described ON-OFF control circuit 1 comprises and being connected in parallel and different three switching branches of resistance, is respectively the first switching branches 11, second switch branch road 12 and the 3rd switching branches 13.Described first switching branches 11 comprises switch one S1 and speed adjusting resistance one; Described second switch branch road 12 comprises switch two S2 and speed adjusting resistance two R2; Described 3rd switching branches 13 comprises switch Three S's 3 and speed adjusting resistance three R3.Described first switching branches 11, second switch branch road 12 and the 3rd switching branches 13 are connected in parallel to be formed and only have the ON-OFF control circuit 1 of an a power input terminal a and switch control rule lead-out terminal b.
The resistance of described speed adjusting resistance one differs 0-75 Ω with the resistance of speed adjusting resistance two; The resistance of described speed adjusting resistance three R3 and the resistance difference 10-35K Ω of speed adjusting resistance two R2.
In the present embodiment, the resistance of described speed adjusting resistance one is 0 Ω.
Described alignment circuit 2 comprises triggering electric capacity C1, bidirectional trigger diode DB3 and bidirectional thyristor TRIAC.Described triggering electric capacity C1 one end c is connected with bidirectional trigger diode DB3 one end with the switch control rule lead-out terminal b of ON-OFF control circuit 1 simultaneously, and other end d is connected with the first main electrode MT1 of bidirectional thyristor TRIAC; The other end of described bidirectional trigger diode DB3 is connected with the grid G of bidirectional thyristor TRIAC; The second main electrode MT2 of described bidirectional thyristor TRIAC is connected with the power input terminal a of ON-OFF control circuit 1.
Further, in order to reduce the impact of electric current in circuit, preferably, a current-limiting resistance R0 is provided with between one end c be connected with the switch control rule lead-out terminal b of ON-OFF control circuit 1 in described triggering electric capacity C1 and the switch control rule lead-out terminal b of ON-OFF control circuit 1.
Described starting circuit 3 comprises the first start terminal e, the second start terminal f, starting capacitance C2 and the 3rd start terminal g.Described first start terminal e connects with one end d connected with bidirectional thyristor TRIAC in triggering electric capacity C1; Described second start terminal f is connected with the second main electrode MT2 of bidirectional thyristor TRIAC by described starting capacitance C2; Described 3rd start terminal g is used for as zero line incoming end.And described first start terminal e, the second start terminal f and the 3rd start terminal g output to three inputs of motor respectively.
Please refer to Fig. 2, when using motor speed regulation device for fan of the present utility model, first between three start terminal of starting circuit 3, access motor M; Then, the power input terminal access live wire of ON-OFF control circuit 1, the 3rd start terminal g accesses zero line simultaneously; Complete outside all wiring thus, only need to select the on off state of control switch circuit just can realize the speed governing of motor M.Refer to Fig. 3, in actual applications, ON-OFF control circuit 1 is encapsulated as mechanical switch group, alignment circuit 2 is encapsulated as electron speed regulator, and realize the connection to each several part circuit and motor according to above-mentioned connection principle, complete all wiring.Because the resistance of the every bar switching branches in ON-OFF control circuit 1 is different, the conversion just by selecting diverter switch to realize motor M rotating speed, thus meet use needs.
In the process realizing motor M speed governing, the closed charging that can realize triggering electric capacity C1 in alignment circuit 2 of a certain switch in ON-OFF control circuit 1, power supply can to the starting capacitance C2 charging in starting circuit 3 simultaneously.During owing to reaching the trigger voltage value of bidirectional trigger diode DB3 when the pressure value triggering electric capacity C1 two ends, bidirectional trigger diode DB3 conducting, now bidirectional thyristor TRIAC also conducting; Starting capacitance C2 charging is complete; Motor M is normally run.Then when the resistance in ON-OFF control circuit 1 changes, the charging voltage pressure value and charging interval that trigger electric capacity C1 two ends can be had influence on, change the ON time of bidirectional trigger diode DB3 and bidirectional thyristor TRIAC thus, change the frequency of supply of motor M, the torque of motor M also can be changed, thus realize motor M speed governing.Before motor M realizes speed governing, the utility model determines the torque force of motor M by the phase shift effect of starting capacitance C2, and then carries out speed governing by alignment circuit 2 pairs of motor M.Utilize starting capacitance C2 to share voltage for motor M and slow down the impulsive force of electric current to motor M, the torque force making motor M current is in stable state, and fluctuation is reduced greatly, thus makes motor M more durable; Recycling silicon controlled mode of speed regulation enhances the rotational speed regulation effect of motor M, makes motor M speed efficiency higher, and extends the useful life of motor M further.By utilizing electronic speed regulation and electric capacity governing, enormously simplify circuit structure, extending the useful life of motor M.
Relative to prior art, the utility model motor speed regulation device for fan and apply the advantage that the fan of this device and fan electromotor combine electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then by electronic speed regulation, Based Intelligent Control is carried out to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
The utility model is not limited to above-mentioned execution mode, if do not depart from spirit and scope of the present utility model to various change of the present utility model or distortion, if these are changed and distortion belongs within claim of the present utility model and equivalent technologies scope, then the utility model is also intended to comprise these changes and distortion.
Claims (8)
1. a motor speed regulation device for fan, is characterized in that: comprise ON-OFF control circuit, alignment circuit and starting circuit;
Described alignment circuit comprises triggering electric capacity, bidirectional trigger diode and bidirectional thyristor; Described triggering electric capacity one end is connected with bidirectional trigger diode one end with ON-OFF control circuit output simultaneously, and the other end is connected with the first main electrode of bidirectional thyristor; The other end of described bidirectional trigger diode is connected with the grid of bidirectional thyristor; Second main electrode of described bidirectional thyristor is connected with ON-OFF control circuit input;
Described starting circuit comprises the first start terminal, the second start terminal, starting capacitance and the 3rd start terminal; Described first start terminal connects with the one end connected with bidirectional thyristor in triggering electric capacity; Described second start terminal is connected with the second main electrode of bidirectional thyristor by described starting capacitance; Described 3rd start terminal is used for as zero line incoming end.
2. motor speed regulation device for fan according to claim 1, is characterized in that: described ON-OFF control circuit comprises at least two and is connected in parallel and the different switching branches of resistance.
3. motor speed regulation device for fan according to claim 2, is characterized in that: described ON-OFF control circuit comprises the first switching branches, second switch branch road and the 3rd switching branches that are connected in parallel; Described first switching branches comprises switch one and speed adjusting resistance one; Described second switch branch road comprises switch two and speed adjusting resistance two; Described 3rd switching branches comprises switch three and speed adjusting resistance three.
4. motor speed regulation device for fan according to claim 3, is characterized in that: the resistance of described speed adjusting resistance one differs 0-75K Ω with the resistance of speed adjusting resistance two; The resistance of described speed adjusting resistance three and the resistance difference 10-35K Ω of speed adjusting resistance two.
5. motor speed regulation device for fan according to claim 4, is characterized in that: the resistance of described speed adjusting resistance one is 0 Ω.
6. motor speed regulation device for fan according to claim 1, is characterized in that: be provided with a current-limiting resistance between the one end be connected with the output of ON-OFF control circuit in described triggering electric capacity and the output of ON-OFF control circuit.
7. a fan electromotor, comprises motor, motor speed regulation device for fan and electric fan; The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor; It is characterized in that: described motor speed regulation device for fan is the motor speed regulation device for fan described in the arbitrary claim of claim 1 ~ 6.
8. a fan, comprises shell and is arranged on the fan electromotor in shell; Described fan electromotor comprises motor, motor speed regulation device for fan and electric fan; The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor; It is characterized in that: described motor speed regulation device for fan is the motor speed regulation device for fan described in the arbitrary claim of claim 1 ~ 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785105.8U CN204376804U (en) | 2014-12-12 | 2014-12-12 | A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785105.8U CN204376804U (en) | 2014-12-12 | 2014-12-12 | A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device |
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| CN204376804U true CN204376804U (en) | 2015-06-03 |
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| CN201420785105.8U Expired - Fee Related CN204376804U (en) | 2014-12-12 | 2014-12-12 | A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467623A (en) * | 2014-12-12 | 2015-03-25 | 陈伟禧 | Fan motor speed adjusting device, fan with same and fan motor |
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2014
- 2014-12-12 CN CN201420785105.8U patent/CN204376804U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467623A (en) * | 2014-12-12 | 2015-03-25 | 陈伟禧 | Fan motor speed adjusting device, fan with same and fan motor |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20151212 |
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| EXPY | Termination of patent right or utility model |