CN205545030U - Energy -saving's permanent magnet brushless DC motor fan coil - Google Patents
Energy -saving's permanent magnet brushless DC motor fan coil Download PDFInfo
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- CN205545030U CN205545030U CN201620317432.XU CN201620317432U CN205545030U CN 205545030 U CN205545030 U CN 205545030U CN 201620317432 U CN201620317432 U CN 201620317432U CN 205545030 U CN205545030 U CN 205545030U
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Abstract
The utility model discloses an energy -saving's permanent magnet brushless DC motor fan coil, including fan and driving motor, electrical power generating system and control system, electrical power generating system converts the alternating current of inputing the drive of into constant voltage direct current including the front end protection circuit, EMI filter circuit, rectifier circuit and the capability correction circuit that connect gradually after filtering, rectification, capability correction the motor, electrical power generating system still includes the DCDC converter, the DCDC converter converts the constant voltage direct current secondary of output into the low -voltage direct current supply control system. The utility model discloses a fan coil systematically supplies with the motor with ac inversion for the constant voltage direct current, again with constant voltage direct current secondary conversion supply control circuit to let control circuit normally operate the control motor, solve the direct current motor fan coil's among the prior art power supply problem effectively, thereby improve whole central air conditioning management system's energy -conserving effect.
Description
Technical field
This utility model relates to technical field of central air, refers in particular to a kind of can save energy permanent magnetism in central air-conditioning management system
Direct-flow brushless electric machine fan coil unit.
Background technology
Along with social development, the heavy construction in city, such as large-scale places such as market, office building, hospital, schools, gradually
Become the key construction in city, these buildings are equipped with central air-conditioning management system.
As the fan coil of central air-conditioning management system end device, it is generally divided into the fan coil of driven by Brush-Less DC motor
The fan coil driven with alternating current generator.Two kinds of fan coils are compared, and the motor used due to direct current brushless motor coil pipe is straight
Stream brushless electric machine, has the advantages such as energy-conservation, stepless speed regulation, peace and quiet, life-span length, and by the way of electronic commutation, replaces
Traditional mechanical commutation mode, is effectively prevented from mechanical commutation electromagnetic interference and the electromagnetic noise produced, makes indoor environment more
Quiet comfortable.Therefore, the fan coil of driven by Brush-Less DC motor quilt in the central air-conditioning management system of many construction projects
Extensively application, and increasingly obtain accreditation and the favor in market.
Direct-flow brushless electric machine fan coil unit of the prior art is general mainly by blower fan, the driving motor of blower fan, power-supply system
And control system composition, described control system controls the operating of motor by control signal, and power-supply system is by the friendship of input
Stream electricity is converted to be suitable for the unidirectional current that motor uses.But owing to motor is different from the DC voltage that control system needs, therefore,
This power-supply system is in addition to being converted into unidirectional current by AC rectification, in addition it is also necessary to be processed unidirectional current being converted into different voltage
Unidirectional current, be supplied respectively to motor and control system, allow fan coil run well, be current art technology development
One big research puzzle.
Utility model content
This utility model purpose is to provide a kind of and novel can save energy non-brush permanent-magnet DC motor fan coil, systematically will hand over
Stream electricity is converted to constant voltage DC electricity supply motor, then by constant voltage DC electricity two times transfer supply control circuit, thus make control electric
Road normal operation controls motor, efficiently solves the power supply supply problem of direct current generator fan coil of the prior art, thus
Improve the energy-saving effect of whole central air-conditioning management system.
Be given in order to achieve the above object, the technical solution of the utility model:
A kind of non-brush permanent-magnet DC motor fan coil that can save energy, including blower fan and driving motor, power-supply system and control
System processed, described power-supply system includes front-end protection circuit, EMI filter circuit, rectification circuit and the power school being sequentially connected with
Positive circuit, by the alternating current of input after filtering, rectification, be converted to motor described in constant voltage DC electric drive after capability correction；
Described power-supply system also includes DC/DC transducer, and the constant voltage DC electricity two times transfer of output is low by described DC/DC transducer
Pressure unidirectional current supplies described control system.
The direct-flow brushless electric machine fan coil unit that can save energy of the present utility model, described power-supply system is by the alternating current of input, by filter
It is converted into constant voltage DC electricity after ripple, rectification, capability correction, drives described motor.Also set up and be equipped with DC/DC transducer, will
The constant voltage DC electricity of output, two times transfer becomes to drive the low-voltage DC of described control system, thus is turned by the alternating current of input
After changing constant voltage DC electricity into, it is further added by further translation function, on the one hand provides sufficient high voltage direct current for motor, allow
It runs well；On the other hand, the constant voltage DC electricity two times transfer after conversion being become low-voltage DC, supplying described control is
System, starts control signal and controls described motor, efficiently solves the direct current generator fan coil power supply supply problem of prior art,
Thus improve the energy-saving effect of whole central air-conditioning management system.
Further, described DC/DC transducer is isolation type switching power supply integrated circuit, and it includes that switching tube, power supply control
Device and power supply protector.Described switching tube is preferably the switching tube of pressure 700V power.Described DC/DC transducer uses
Simple on-off control output voltage, effectively accelerates transient response time, has under-voltage protection function.
On the basis of the above, described DC/DC transducer also includes the manostat for reducing no-load power consumption.Described manostat can
It is preferably the shunt regulator of 6.3V, effectively no-load power consumption is reduced.
Described front-end protection circuit includes that overcurrent protection module and overvoltage protective module, described overcurrent protection module are provided with fuse
Pipe；Described overvoltage protective module is provided with varistor, and described varistor changes along with front voltage, absorbs surge voltage.
By being provided with cartridge fuse in overcurrent protection module, the fusing point utilizing cartridge fuse is low, resistivity is high, fusing speed is fast and becomes
The characteristics such as this is cheap, when on-off circuit source is short-circuited, if electric current exceedes blowout current, cartridge fuse will fuse, from
And play overcurrent protection effect.The varistor of described overvoltage protective module, impact resistance electricity fast to overvoltage pulse response
Stream ability is strong, it is little to leak electricity, and temperature coefficient is low, and its resistance changes with the voltage of input, effectively absorbs surge voltage
With anti-lightning strike protection, thus play overvoltage protection effect.
Further, described overcurrent protection module also includes that thermal resistor, described thermal resistor are the heat of negative temperature coefficient
Quick resistance, caloric value during for reducing power initiation.During due to the startup optimization of power supply, resistance heating amount is relatively big, described
The resistance of thermal resistor can reduce rapidly, and power consumption can be reduced, be effectively prevented energising moment over-current phenomenon avoidance occurs.
Described EMI filter circuit is provided with the common mode inductance for suppressing common mode interference signal；Described rectification circuit is rectifier bridge,
Input power is converted to full-wave rectified voltage.For filter circuit, the electromagnetic interference that generally there are includes differential mode interference
And common mode disturbances, two kinds of interference are to exist simultaneously, but owing to common mode is easier to cause electromagnetic interference than differential mode, therefore, described
EMI filter circuit is by arranging common mode inductance, thus suppresses common mode interference signal.
Described power factor correction circuit includes power supply chip controller and error amplifier, is modified to by the DC voltage after rectification
Constant voltage DC electricity.Described controller has overcurrent protection function, and coordinates with described error amplifier, by the direct current after rectification
Voltage is modified to constant voltage DC electricity, supplies described motor.
Described control system is for controlling the operating of described motor, and it includes drive circuit and control circuit.The control of control system
Scheme processed uses open loop type to control, and in the way of square wave drive, makes DC brushless motor steady and quiet according to setting speed
Ground runs.
Described drive circuit includes SPM and high speed HVIC module, and the driving signal of low-voltage is converted into described electricity
Machine receivable high voltage drive signal.Described SPM is conducive to alternating current impression, brshless DC motor and permanent magnetism same
The inversion output of step motor, it is provided that multiple module protection feature, integrated undervoltage lockout and heat monitoring, efficiently reduce electromagnetism
Interference and energy loss.Described high speed HVIC module has only to a single-power voltage, just can the input of logic level grid be turned
Turn to be suitable for the high voltage of described motor, effectively driving signal is converted into high voltage signal, drives described motor.
Described control circuit is provided with controller and Hall element, and described Hall element is used for detecting motor rotor position letter
Breath, and by rotor-position signal, allow described controller that motor is carried out switch operation.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of non-brush permanent-magnet DC motor fan coil that can save energy of this utility model；
Fig. 2 is the power-supply system schematic diagram of a kind of non-brush permanent-magnet DC motor fan coil that can save energy of this utility model；
Fig. 3 is the control system schematic diagram of a kind of non-brush permanent-magnet DC motor fan coil that can save energy of this utility model.
Detailed description of the invention
Accompanying drawings is of the present utility model can save energy non-brush permanent-magnet DC motor fan coil.
As it is shown in figure 1, this non-brush permanent-magnet DC motor fan coil that can save energy, the motor that is connected with blower fan including blower fan,
Power-supply system and control system, described power-supply system major function is input 220V alternating current is converted to constant voltage DC electricity
400V, supplies described motor, and the unidirectional current further needing exist for being reconverted into constant voltage DC electricity 15V supplies described control system,
Allow control system normal operation, drive described motor.
Wherein, described power-supply system includes front-end protection circuit, EMI filter circuit, rectification circuit and the power being sequentially connected with
Correcting circuit, also includes the DC/DC transducer that the constant voltage DC electricity of output is converted to low-voltage DC,
Specifically, as in figure 2 it is shown, the DC/DC transducer of described power-supply system is isolation type switching power supply integrated circuit, can
Being preferably the efficient low power TNY266P model control chip of 10W, it includes that switching tube, power-supply controller of electric and power supply are protected
Protecting device, described switching tube preferably uses the switching tube of pressure 700V power.Described DC/DC transducer uses simple switch
Control output voltage, effectively accelerate transient response time, there is under-voltage protection function.
Preferably, described DC/DC transducer also includes the manostat for reducing no-load power consumption, and described manostat preferably employs
The shunt regulator of 6.3V, when electric current injects through outside, voltage clamp at 6.3V, is conducive to biasing winding by this manostat
Power supply, is down to about 50mW by no-load power consumption.
Making to optimize to described front-end protection circuit, described front-end protection circuit includes overcurrent protection module and overvoltage protective module.
Described overcurrent protection module is provided with cartridge fuse, and the fusing point utilizing cartridge fuse is low, resistivity is high, fusing speed is fast and becomes
The characteristics such as this is cheap, when on-off circuit source is short-circuited, if electric current exceedes blowout current, cartridge fuse will fuse, from
And play overcurrent protection effect.
Preferably, described overcurrent protection module also includes that thermal resistor, described thermal resistor are the temperature-sensitive of negative temperature coefficient
Resistance, caloric value during for reducing power initiation.During due to the startup optimization of power supply, resistance heating amount is relatively big, described heat
The resistance of sensitive resistor can reduce rapidly, and power consumption can be reduced, be effectively prevented energising moment over-current phenomenon avoidance occurs.
Described overvoltage protective module is provided with varistor, and described varistor is fast to overvoltage pulse response, impact resistance electric current energy
Power is strong, it is little to leak electricity, and temperature coefficient is low, and its resistance changes with the voltage of input, effectively absorbs surge voltage and prevents
Lightning strike protection, thus play overvoltage protection effect.
Described EMI filter circuit is provided with the common mode inductance for suppressing common mode interference signal.The electromagnetic interference that generally there are includes
Differential mode interference and common mode disturbances, two kinds of interference are to exist simultaneously, but owing to common mode is easier to cause electromagnetic interference than differential mode, because of
This, described EMI filter circuit is by arranging common mode inductance, thus suppresses common mode interference signal.
Described rectification circuit is rectifier bridge, it is preferred to use the rectifier bridge of GBJ2508 type, and the voltage after the output of rectified bridge is 310v
Unidirectional current, is converted to full-wave rectified voltage by input power effectively.
Described power factor correction circuit includes power supply chip controller and error amplifier, and described power supply chip controller is preferably
High integration power supply chip FAN7527B, during this chip operation, electric current is little, and maximum 8mA, the VCC enabling gate that is less than is limited to 12V,
Closing voltage max is 9V, and starting current representative value is that 60 μ A maximums are less than 100 μ A.Described power supply chip controller
There is overcurrent protection function, and coordinate with described error amplifier, by straight for the constant voltage that the DC voltage after rectification is modified to 400V
Stream electricity, thus export the described motor of supply.
As it is shown on figure 3, described control system is for controlling the operating of described motor, it includes drive circuit and control circuit,
The 15V unidirectional current startup optimization supplied by described power-supply system.The control program of described control system uses open loop type to control,
And in the way of square wave drive, make DC brushless motor steadily and undisturbedly run according to setting speed.
Described drive circuit includes SPM and high speed HVIC module, and the driving signal of low-voltage is converted into described electricity
Machine receivable high voltage drive signal.
Described SPM preferred FSB50760SF chip, this chip integration is high, and six MOSFET are integrated in one
On individual chip, the beneficially inversion output of alternating current impression, brshless DC motor and permagnetic synchronous motor, it is provided that multiple module is protected
Protect characteristic, integrated undervoltage lockout and heat monitoring, efficiently reduce electromagnetic interference and energy loss.
Described high speed HVIC module has only to a single-power voltage, just can the input of logic level grid be converted into described in being suitable for
The high voltage of motor, is converted into high voltage signal by driving signal effectively, drives described motor.
Described control circuit is provided with controller and Hall element, and described Hall element is used for detecting motor rotor position letter
Breath, and by rotor-position signal, allow described controller that motor is carried out switch operation.Described controller is preferably
Technical grade 32 8-digit microcontroller of MKE02Z16VLC2, its operating frequency is 20MHz, low in energy consumption, good stability, reliable
Property higher, and economical and efficient, be conducive to coordinating with described Hall element, control the operating of described motor commutation.
The announcement of book and teaching according to the above description, this utility model those skilled in the art can also be to above-mentioned embodiment party
Formula changes and revises.Therefore, this utility model is not limited to detailed description of the invention disclosed and described above, to this
Some modifications and changes of utility model should also be as falling in scope of the claims of the present utility model.Although additionally,
This specification employs some specific terms, but these terms are merely for convenience of description, not to this utility model structure
Become any restriction.
Claims (10)
1. the non-brush permanent-magnet DC motor fan coil that can save energy, including blower fan and drive motor, power-supply system and
Control system, it is characterised in that front-end protection circuit that described power-supply system includes being sequentially connected with, EMI filter circuit, rectification
Circuit and power factor correction circuit, by the alternating current of input after filtering, rectification, be converted to constant voltage DC electricity after capability correction
Drive described motor；Described power-supply system also includes DC/DC transducer, and described DC/DC transducer is by the constant voltage DC of output
Electricity two times transfer is that low-voltage DC supplies described control system.
Non-brush permanent-magnet DC motor fan coil the most according to claim 1, it is characterised in that described DC/DC changes
Device is isolation type switching power supply integrated circuit, and it includes switching tube, power-supply controller of electric and power supply protector.
Non-brush permanent-magnet DC motor fan coil the most according to claim 2, it is characterised in that described DC/DC changes
Device also includes the manostat for reducing no-load power consumption, and described manostat is shunt regulator.
Non-brush permanent-magnet DC motor fan coil the most according to claim 1, it is characterised in that described front-end protection electricity
Road includes that overcurrent protection module and overvoltage protective module, described overcurrent protection module are provided with cartridge fuse；Described overvoltage protection mould
Block is provided with varistor, and described varistor changes along with front voltage, absorbs surge voltage.
Non-brush permanent-magnet DC motor fan coil the most according to claim 4, it is characterised in that described overcurrent protection mould
Block also includes that thermal resistor, described thermal resistor are the critesistor of negative temperature coefficient, during for reducing power initiation
Caloric value.
Non-brush permanent-magnet DC motor fan coil the most according to claim 1, it is characterised in that described EMI filtered electrical
Road is provided with the common mode inductance for suppressing common mode interference signal；Described rectification circuit is rectifier bridge, is converted to entirely by input power
Ripple commutating voltage.
Non-brush permanent-magnet DC motor fan coil the most according to claim 1, it is characterised in that described capability correction electricity
Road includes power supply chip controller and error amplifier, and the DC voltage after rectification is modified to constant voltage DC electricity.
Non-brush permanent-magnet DC motor fan coil the most according to claim 1, it is characterised in that described control system is used
In the operating of the described motor of control, it includes drive circuit and control circuit.
Non-brush permanent-magnet DC motor fan coil the most according to claim 8, it is characterised in that described drive circuit bag
Include SPM and high speed HVIC module, the driving signal of low-voltage is converted into the receivable high voltage of described motor and drives
Dynamic signal.
Non-brush permanent-magnet DC motor fan coil the most according to claim 8, it is characterised in that described control circuit
Being provided with controller and Hall element, described Hall element is used for detecting motor rotor position information, and by rotor position
Confidence number, allows described controller that motor is carried out switch operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620317432.XU CN205545030U (en) | 2016-04-14 | 2016-04-14 | Energy -saving's permanent magnet brushless DC motor fan coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620317432.XU CN205545030U (en) | 2016-04-14 | 2016-04-14 | Energy -saving's permanent magnet brushless DC motor fan coil |
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| Publication Number | Publication Date |
|---|---|
| CN205545030U true CN205545030U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620317432.XU Active CN205545030U (en) | 2016-04-14 | 2016-04-14 | Energy -saving's permanent magnet brushless DC motor fan coil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357169A (en) * | 2016-10-20 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | PWM modulation circuit and direct-current brushless motor controller |
| CN107612439A (en) * | 2017-10-24 | 2018-01-19 | 天津凌动智能科技有限公司 | Circuit for controlling motor and device |
-
2016
- 2016-04-14 CN CN201620317432.XU patent/CN205545030U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357169A (en) * | 2016-10-20 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | PWM modulation circuit and direct-current brushless motor controller |
| CN107612439A (en) * | 2017-10-24 | 2018-01-19 | 天津凌动智能科技有限公司 | Circuit for controlling motor and device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |