CN108869373A - Fan drive control apparatus - Google Patents
Fan drive control apparatus Download PDFInfo
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- CN108869373A CN108869373A CN201810858539.9A CN201810858539A CN108869373A CN 108869373 A CN108869373 A CN 108869373A CN 201810858539 A CN201810858539 A CN 201810858539A CN 108869373 A CN108869373 A CN 108869373A
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- power supply
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- control
- switch device
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- 238000012937 correction Methods 0.000 claims description 18
- 239000004065 semiconductor Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The application relates to a fan driving control device, which comprises an external driving board and a main control board; the external drive board comprises a power supply circuit and a fan control circuit, the fan control circuit is connected with the main control board, the power supply circuit is connected with the main control board, and the fan control circuit is used for connecting a first fan; the power supply circuit is used for accessing an external power supply and outputting voltage to the main control board according to the accessed external power supply, the main control board utilizes the power supply transmitted by the power supply circuit and outputs the power supply voltage to the fan control circuit, and the main control board is used for controlling the power supply circuit to stop accessing the external power supply when detecting a preset standby trigger condition. When the main control board detects a preset standby triggering condition, the power supply circuit is controlled to stop accessing the external power supply, so that all power supplies of the whole fan drive control equipment can be cut off due to the fact that the power supply circuit is not accessed to the external power supply in the standby state, power consumption in the standby state is reduced, and electric energy is saved.
Description
Technical field
This application involves air-blower control technical fields, more particularly to a kind of blower drive control apparatus and method.
Background technique
With economic rapid growth, people's living standard is significantly improved, but the use of all kinds of household electrical appliance
Also result in electric consumption it is excessive, wherein air-conditioning be used as household electrical appliance indispensable in people's daily life, be electricity consumption burden with
The main source of energy waste.
In conventional fan driving control system, by directly providing power supply to internal or external driving plate, pass through driving
Plate drives blower work, but traditional blower driving control system driving plate in standby mode can generate certain loss, long
Expect that chance causes the waste of the energy, haves the shortcomings that low in energy consumption.
Summary of the invention
Based on this, it is necessary to be set in view of the above-mentioned problems, providing a kind of blower drive control that can be realized low-power consumption standby
It is standby.
A kind of blower drive control apparatus, the equipment include external driving plate and master control borad；External driving plate includes supplying
Circuit and draught fan control circuit, draught fan control circuit connect master control borad, and power supply circuit connects master control borad, and draught fan control circuit is used
In connecting the first blower；
Power supply circuit is used to access external power supply, and according to the external power supply output voltage of access to master control borad, master control borad
The power supply conveyed using power supply circuit, and export supply voltage to draught fan control circuit, master control borad be used for detect it is preset
When standby trigger condition, then controls power supply circuit and stop access external power supply.
In one embodiment, power supply circuit includes first switch device and circuit of power factor correction, first switch device
Part connects circuit of power factor correction, and first switch device connects master control borad, and circuit of power factor correction connects master control borad.
In one embodiment, power supply circuit further includes rectification circuit, and rectification circuit connects first switch device, rectified current
Road connects circuit of power factor correction.
In one embodiment, master control borad includes second switch device and control circuit, the connection control of second switch device
Circuit, second switch device connect first switch device, and second switch device connects draught fan control circuit, and control circuit connects function
Rate factor correcting circuit.
In one embodiment, control circuit includes drive control circuit and Switching Power Supply, and drive control circuit connection is opened
Powered-down source, Switching Power Supply connect circuit of power factor correction, the input terminal connection switch power supply of second switch device, second switch
The control terminal of the output end connection first switch device of device, the output end of second switch device connect draught fan control circuit, the
The control terminal of two switching devices connects drive control circuit.
In one embodiment, drive control circuit is also used to connect the second blower.
In one embodiment, drive control circuit includes control chip, controls chip connection switch power supply, controls chip
The control terminal of second switch device is connected, control chip connects the second blower, and control chip is for receiving current indoor air matter
Data are measured, and air-blower control signal is sent to blower control according to current indoor air quality data and preset air quality standard
Circuit processed.
In one embodiment, control chip is also used to receive the first rotation speed of fan feedback letter of draught fan control circuit transmission
Number, and according to the current rotating speed of the first rotation speed of fan feedback signal the first blower of calculating, according to the current rotating speed pair of the first blower
The revolving speed of first blower is controlled.
In one embodiment, control chip is also used to receive the second rotation speed of fan feedback signal of the second blower transmission,
And the current rotating speed of the second blower is calculated according to the second rotation speed of fan feedback signal, according to the current rotating speed of the second blower to second
The revolving speed of blower is controlled.
In one embodiment, external driving plate further includes semiconductor control part, and semiconductor control part connects blower
Control circuit, semiconductor control part connect the first blower.
Above-mentioned blower drive control apparatus, including external driving plate and master control borad；External driving plate include power supply circuit and
Draught fan control circuit, draught fan control circuit connect master control borad, and power supply circuit connects master control borad, and draught fan control circuit is for connecting the
One blower；For power supply circuit for accessing external power supply, and according to the external power supply output voltage of access to master control borad, master control borad is sharp
The power supply conveyed with power supply circuit, and export supply voltage to draught fan control circuit, master control borad be used for detect it is preset to
When machine trigger condition, then controls power supply circuit and stop access external power supply.External power supply is accessed by power supply circuit, and according to connecing
The external power supply output voltage entered to master control borad, master control borad utilizes the power supply of power supply circuit conveying, and exports supply voltage to wind
Machine control circuit to realize series topology structure, and when detecting preset standby trigger condition, then controls power supply circuit
Stop access external power supply, so that entire blower can be cut off in standby mode since power supply circuit does not access external power supply
All power supplys of drive control apparatus are to reduce the power consumption under standby mode, compared to traditional blower drive control system
System, certain loss can be still generated in standby mode, blower drive control apparatus provided by the present application can be realized low function
Consumption control, saves electric energy.
Detailed description of the invention
Fig. 1 is the structural block diagram of blower drive control apparatus in one embodiment；
Fig. 2 is the structural block diagram of blower drive control apparatus in another embodiment；
Fig. 3 is the structural block diagram of blower drive control apparatus in further embodiment；
Fig. 4 is the structural block diagram of blower drive control apparatus in another embodiment；
Fig. 5 is the structural block diagram of blower drive control apparatus in another embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
In one embodiment, as shown in Figure 1, providing a kind of blower drive control apparatus, the equipment includes external
Driving plate 100 and master control borad 200；External driving plate 100 includes power supply circuit 120 and draught fan control circuit 140, power supply circuit
120 connection master control borads 200, draught fan control circuit 140 connect master control borad 200, and draught fan control circuit 140 is for connecting the first blower
300。
Power supply circuit 120 is for accessing external power supply, and according to the external power supply output voltage of access to master control borad 200,
The power supply that master control borad 200 is conveyed using power supply circuit 120, and supply voltage is exported to draught fan control circuit 140.Power supply circuit
After 120 access external power supplies, is worked normally according to the external power supply of access for entire blower drive control apparatus, specifically, supplied
According to the external power supply output voltage of access to master control borad 200, master control borad 200 is conveyed circuit 120 using power supply circuit 120
Power supply can operate normally, and export supply voltage to draught fan control circuit 140, access external power supply by power supply circuit 120 and supply
It is inputted to master control borad 200, and the output of master control borad 200 supplies voltage to the power supply of draught fan control circuit 140, to realize series topology
Structure.
Master control borad 200 stops access outside for when detecting preset standby trigger condition, then controlling power supply circuit 120
Power supply, specifically, preset standby trigger condition include not receiving air-blower control instruction in preset duration or receiving
The standby command of user's input, when detecting preset standby trigger condition, entire blower drive control apparatus is at this time
Standby mode then controls power supply circuit 120 and stops access external power supply, so that power supply circuit 120 is without voltage output to master control
Plate 200, master control borad 200 are exported without supply voltage to draught fan control circuit 140, and entire blower drive control apparatus is due to power supply
Circuit 120 stops access external power supply, so as to effectively reduce the power consumption under standby mode in external driving plate, saves electricity
Energy.
Air-blower control instruction the first blower of control that draught fan control circuit 140 is also used to be sent according to master control borad 200 carries out
Work, specifically, revolving speed, the electricity of other instruction control motors that draught fan control circuit 140 can also be sent according to master control borad 200
Stream, operational mode etc..
Above-mentioned blower drive control apparatus, including external driving plate 100 and master control borad 200；External driving plate 100 includes supplying
Circuit 120 and draught fan control circuit 140, draught fan control circuit 140 connect master control borad 200, and power supply circuit 120 connects master control borad
200, draught fan control circuit 140 is for connecting the first blower 300；Power supply circuit 120 is used to access external power supply, and according to access
External power supply output voltage to master control borad 200, the power supply that master control borad 200 is conveyed using power supply circuit 120, and export power supply electricity
It is depressed into draught fan control circuit 140, master control borad 200 is used for when detecting preset standby trigger condition, then controls power supply circuit
120 stop access external power supply.External power supply is accessed by power supply circuit 120, and according to the external power supply output voltage of access
The power supply conveyed to master control borad 200, master control borad 200 using power supply circuit 120, and supply voltage is exported to draught fan control circuit
140, to realize series topology structure, and when detecting preset standby trigger condition, then control the stopping of power supply circuit 120
External power supply is accessed, so that entire blower can be cut off and drive in standby mode since power supply circuit 120 does not access external power supply
All power supplys of dynamic control equipment realize low power consumption control, save electric energy to reduce the power consumption under standby mode.
In one embodiment, as shown in Fig. 2, power supply circuit 120 includes first switch device 122 and PFC
Circuit 126, first switch device 122 connect circuit of power factor correction 126, and first switch device 122 connects master control borad 200,
Circuit of power factor correction 126 connects master control borad 200.Specifically, when first switch device 122 in the closure state, access
External power supply is exported to circuit of power factor correction 126, at the external power supplies of 126 pairs of circuit of power factor correction accesses
Reason, it is smaller by harmonic content in the processing voltage of circuit of power factor correction 126, by the voltage output after harmonic carcellation to master
Plate 200 is controlled, the harmonic wave of the first blower can be effectively reduced, improves efficiency and the service life of the first blower, and improves Electro Magnetic Compatibility.
When master control borad 200 detects preset standby trigger condition, then the disconnection of first switch device 122 is controlled, stops access at this time
External power supply reduces the power consumption under standby mode.
In one embodiment, as shown in Fig. 2, power supply circuit 120 further includes rectification circuit 124, rectification circuit 124 is connected
First switch device 122, rectification circuit connect circuit of power factor correction 126, when external power supply is alternating current, then by whole
The alternating current that current circuit 124 is accessed when first switch device is closed is rectified to obtain direct current, and is exported to power factor
Correcting circuit 126.
In one embodiment, as shown in figure 3, master control borad 200 includes second switch device 220 and control circuit 240, the
Two switching devices 220 connect control circuit 240, and second switch device 220 connects first switch device 122, second switch device
220 connection draught fan control circuits 140, control circuit 240 connect circuit of power factor correction 126.Specifically, first switch device
When 122 closure, access external power supply to rectification circuit 124, the external power supply of 124 pairs of rectification circuit accesses is rectified to obtain straight
Galvanic electricity, direct current export after 126 harmonic carcellation of circuit of power factor correction to control circuit 240, and control circuit 240 exports again
Supply voltage is to draught fan control circuit 140.When control circuit 240 is when detecting preset standby trigger condition, then is controlled
One switching device 122 disconnects, so that entire blower drive control can be cut off due to not having access external power supply in standby mode
All power supplys of equipment realize low power consumption control to reduce the power consumption under standby mode, save electric energy.
In one embodiment, as shown in figure 4, control circuit 240 includes drive control circuit 242 and Switching Power Supply 244,
242 connection switch power supply 244 of drive control circuit, Switching Power Supply 244 connect circuit of power factor correction 126, second switch device
The input terminal connection switch power supply 244 of part 220, the control of the output end connection first switch device 122 of second switch device 220
End, the output end of second switch device 220 connect draught fan control circuit 140, and the control terminal of second switch device 220 connects driving
Control circuit 242.Specifically, first switch device 120 and second switch device 220 are relay, first switch device 120
Input terminal connect external power supply, the output end of first switch device 120 connects rectification circuit 124, first switch device 120
Control terminal connects the output end of second switch device 220, and the output end of second switch device 220 connects draught fan control circuit 140,
The control terminal of second switch device 220 connects drive control circuit 242, when second switch device 220 is closed, then exports power supply
Voltage is to draught fan control circuit 140, at this point, output supply voltage controls first switch device 122 to first switch device 122
Closure then controls the disconnection of second switch device 220 when drive control circuit 242 is when detecting preset standby trigger condition,
It then exports without supply voltage to draught fan control circuit 140, and at this time due to there is no supply voltage to export to first switch device
122, so that first switch device 122 disconnects, the power supply of entire blower drive control apparatus is cut off, to reduce standby shape
Power consumption under state realizes low power consumption control, saves electric energy.
In one embodiment, as shown in figure 4, drive control circuit 242 is also used to connect the second blower 400, specifically,
First blower 300 is new blower, and new blower is used to arrange the air of outdoor inspiration after the functions such as filtering to interior, driving control
Circuit 242 processed can control the booting of the first blower 300 by outputing control signals to draught fan control circuit 140, adjust revolving speed and electricity
Stream etc., the second blower 400 are exhaust blower, for by outdoor air inspiration room, drive control circuit 242 to pass through output control
Signal directly controls the second blower 400 to the second blower 400.
In one embodiment, as shown in figure 5, drive control circuit 242 includes control chip 241, control chip 241 connects
Switching Power Supply 244 is connect, control chip 241 connects the control terminal of second switch device 220, and control chip 241 connects the second blower
400, control chip 241 according to current indoor air quality data and is preset for receiving current indoor air quality data
Air quality standard send air-blower control signal to draught fan control circuit 140.Specifically, current indoor air quality data can
To be sent to control chip 241 after collecting by sensor, current indoor air quality data is for measuring current indoor
Air quality, control chip 241 according to current indoor air quality data and preset air quality standard measurement works as cup
Interior air quality it is excellent, and air-blower control signal is sent to draught fan control circuit 140, wind according to the air quality of current indoor
Air-blower control signal carries out corresponding control to the first blower 300 to machine control circuit 140 based on the received, and control chip 241 may be used also
Air-blower control signal is sent to the second blower 400 according to the air quality of current indoor, and the second blower 400 is controlled.When
When control chip 241 judges that obtaining current indoor air quality meets arm's length standard, it will be automatically converted to interior circulation pattern, at this time
Only the first blower 300 of control works, and the first blower 300 is new blower, for the air of outdoor inspiration to be passed through filtering etc.
Row arrives interior after function；It, will be from turn when the control judgement of chip 241, which obtains the instruction of current indoor air, does not meet arm's length standard
It is changed to heat exchange mode, the first blower 300 is controlled at this time and the second blower 400 works at the same time, the first blower 300 is new blower,
For by the air of outdoor inspiration by filtering etc. after functions row to interior, the second blower 400 be exhaust blower, for will be outdoor
In air inspiration room, while the first blower 300 and the work of the second blower 400 are controlled, can be quickly converted room air, to be promoted
Indoor air quality.First switch device 220 connects first switch device 120 by power port, thus drive control circuit
The on-off of 242 controllable first switch devices 220, Switching Power Supply 244 are provided for external driving plate and are virtually connect by grounding ports
The function on ground.
In one embodiment, as shown in figure 5, external driving plate 100 further includes semiconductor control part 160, semiconductor
Control device 160 connects draught fan control circuit 140, and semiconductor control part 160 connects the first blower 300.Specifically, semiconductor
Control device 160 is insulated gate bipolar transistor, is made of double pole triode and insulating gate type field effect tube compound
Full-control type voltage driven type power semiconductor, draught fan control circuit 140 are logical according to the control signal that control chip 241 is sent
The make-and-break time of control insulated gate bipolar transistor is crossed to realize the frequency control to the first blower 300.
In one embodiment, master control borad 200 further includes semiconductor control part, semiconductor control part connection control core
Piece 241, semiconductor control part connect the second blower 400.Semiconductor control part is insulated gate bipolar transistor, is by double
The compound full-control type voltage driven type power semiconductor of polar form triode and insulating gate type field effect tube composition, to control
Chip 241 can control signal by controlling the make-and-break time of insulated gate bipolar transistor to realize the change to the second blower 400
Frequency controls.
In one embodiment, control chip 241 is also used to receive the first rotation speed of fan of the transmission of draught fan control circuit 140
Feedback signal, and according to the current rotating speed of the first rotation speed of fan feedback signal the first blower 300 of calculating, according to the first blower 300
Current rotating speed the revolving speed of the first blower 300 is controlled.Specifically, the first blower 300 is calculated in control chip 241
After actual speed, the first Fan Regulation signal can be sent according to the actual speed and current air mass of the first blower 300 to wind
Machine control circuit 140, the first Fan Regulation signal are used to adjust the revolving speed and/or electric current of the first blower 300, draught fan control circuit
140 are adjusted according to revolving speed and/or electric current of the adjustment signal to the first blower 300, and specifically, control chip 241 sends PWM
For signal to draught fan control circuit 140, the duty ratio of pwm signal determines the revolving speed and electric current of the first blower 300.First switch device
Part 220 connects first switch device 120 by the port VSP, so that PWM can be sent to draught fan control circuit 140 by controlling chip 241
First rotation speed of fan feedback signal back is also extremely controlled chip 241 by the port FG by signal, draught fan control circuit 140, thus
The current rotating speed of the first blower 300 can be calculated according to the first rotation speed of fan feedback signal by controlling chip 241
In one embodiment, control chip 241 is also used to receive the second rotation speed of fan feedback of the second blower 400 transmission
Signal, and according to the current rotating speed of the second rotation speed of fan feedback signal the second blower 400 of calculating, according to working as the second blower 400
Preceding revolving speed controls the revolving speed of the second blower 400.Specifically, the reality of the second blower 400 is calculated in control chip 241
After revolving speed, the first Fan Regulation signal to the second wind can be sent according to the actual speed and current air mass of the second blower 400
Machine 400, the first Fan Regulation signal are used to adjust the revolving speed and/or electric current of the second blower 400, and specifically, control chip 241 is sent out
Send pwm signal to the second blower 400, the duty ratio of pwm signal determines the revolving speed and electric current of the second blower 400.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to claim therefore cannot be interpreted as.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of blower drive control apparatus, which is characterized in that the equipment includes external driving plate and master control borad；It is described external
Driving plate includes power supply circuit and draught fan control circuit, and the draught fan control circuit connects the master control borad, the power supply circuit
The master control borad is connected, the draught fan control circuit is for connecting the first blower；
The power supply circuit is used to access external power supply, and according to the external power supply output voltage of access to the master control borad, institute
It states master control borad and utilizes the power supply of power supply circuit conveying, and export supply voltage to the draught fan control circuit, the master control
Plate is used for when detecting preset standby trigger condition, then controls the power supply circuit and stop access external power supply.
2. blower drive control apparatus according to claim 1, which is characterized in that the power supply circuit includes first switch
Device and circuit of power factor correction, the first switch device connect the circuit of power factor correction, the first switch
Device connects the master control borad, and the circuit of power factor correction connects the master control borad.
3. blower drive control apparatus according to claim 2, which is characterized in that the power supply circuit further includes rectified current
Road, the rectification circuit connect the first switch device, and the rectification circuit connects the circuit of power factor correction.
4. blower drive control apparatus according to claim 3, which is characterized in that the master control borad includes second switch device
Part and control circuit, the second switch device connect the control circuit, and the second switch device connection described first is opened
Device is closed, the second switch device connects the draught fan control circuit, and the control circuit connects the PFC
Circuit.
5. blower drive control apparatus according to claim 4, which is characterized in that the control circuit includes drive control
Circuit and Switching Power Supply, the drive control circuit connect the Switching Power Supply, and the Switching Power Supply connects the power factor
Correcting circuit, the input terminal of the second switch device connect the Switching Power Supply, and the output end of the second switch device connects
The control terminal of the first switch device is connect, the output end of the second switch device connects the draught fan control circuit, described
The control terminal of second switch device connects the drive control circuit.
6. blower drive control apparatus according to claim 5, which is characterized in that the drive control circuit is also used to connect
Connect the second blower.
7. blower drive control apparatus according to claim 6, which is characterized in that the drive control circuit includes control
Chip, the control chip connect the Switching Power Supply, and the control chip connects the control terminal of the second switch device, institute
It states control chip and connects second blower, the control chip is used to receive current indoor air quality data, and according to institute
It states current indoor air quality data and preset air quality standard sends air-blower control signal to the draught fan control circuit.
8. blower drive control apparatus according to claim 7, which is characterized in that the control chip is also used to receive institute
The first rotation speed of fan feedback signal of draught fan control circuit transmission is stated, and institute is calculated according to the first rotation speed of fan feedback signal
The current rotating speed for stating the first blower is controlled according to revolving speed of the current rotating speed of first blower to first blower.
9. blower drive control apparatus according to claim 7, which is characterized in that the control chip is also used to receive institute
The second rotation speed of fan feedback signal of the second blower transmission is stated, and calculates described the according to the second rotation speed of fan feedback signal
The current rotating speed of two blowers is controlled according to revolving speed of the current rotating speed of second blower to second blower.
10. blower drive control apparatus according to claim 1, which is characterized in that the external driving plate further includes half
Conductor control device, the semiconductor control part connect the draught fan control circuit, and the semiconductor control part connects institute
State the first blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858539.9A CN108869373B (en) | 2018-07-31 | 2018-07-31 | Fan drive control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810858539.9A CN108869373B (en) | 2018-07-31 | 2018-07-31 | Fan drive control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108869373A true CN108869373A (en) | 2018-11-23 |
| CN108869373B CN108869373B (en) | 2023-10-03 |
Family
ID=64306580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810858539.9A Active CN108869373B (en) | 2018-07-31 | 2018-07-31 | Fan drive control device |
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| Country | Link |
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| CN (1) | CN108869373B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173801A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
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| CN208634087U (en) * | 2018-07-31 | 2019-03-22 | 珠海格力电器股份有限公司 | Fan drive control apparatus |
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2018
- 2018-07-31 CN CN201810858539.9A patent/CN108869373B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161840A1 (en) * | 2014-04-22 | 2015-10-29 | Wisy Ag Haustechniksysteme, Filtertechnik | Device for switching a main current circuit |
| CN206461539U (en) * | 2017-01-19 | 2017-09-01 | 广州速航节能科技有限公司 | Small power DC brushless fan drive circuit with PFC |
| CN207599948U (en) * | 2017-12-06 | 2018-07-10 | 珠海亚丁科技有限公司 | Low-tension supply power supply circuit and frequency-conversion air-conditioning system |
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| CN110173801A (en) * | 2019-05-10 | 2019-08-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method and device |
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| Publication number | Publication date |
|---|---|
| CN108869373B (en) | 2023-10-03 |
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