CN207065818U - air conditioner controller - Google Patents
air conditioner controller Download PDFInfo
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- CN207065818U CN207065818U CN201721017470.4U CN201721017470U CN207065818U CN 207065818 U CN207065818 U CN 207065818U CN 201721017470 U CN201721017470 U CN 201721017470U CN 207065818 U CN207065818 U CN 207065818U
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- power supply
- control device
- drive control
- air
- controller
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- 238000002955 isolation Methods 0.000 claims abstract description 47
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 230000009466 transformation Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000001154 acute effect Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model provides an air conditioner controller relates to the automation control field. The utility model discloses an air conditioner controller includes: a motherboard controller; a drive controller; and the optical coupling isolation unit is positioned between the main board controller and the driving controller and comprises two-stage optical coupling isolators, connecting wires positioned between the two-stage optical coupling isolators and a power supply module. The air conditioner controller can adopt a bipolar optical coupling isolation scheme for communication isolation between the main board controller and the driving controller, and the bipolar optical coupling isolator is provided with an independent power supply module, so that the limitation on the wiring length of the fan is reduced, and the signal transmission distance is increased; on the other hand, the power supply module can enable the optical coupling isolation unit to have different ground planes, and the effect of signal isolation is optimized.
Description
Technical field
Automation control area is the utility model is related to, particularly a kind of air-conditioner controller.
Background technology
In the design of indoor apparatus of air conditioner, the ground level of indoor set drive control device typically uses thermally, and mainboard controls
The ground level of device use transformer isolation after floatingly.Because both ground levels are different, therefore can be led on communication modes
Interrogate signal isolation.
But the light-coupled isolation scheme used in the prior art has the limitation to blower fan wiring lengths, when blower fan distribution
It is long, or during master control power supply instability, easily cause Communications failure.
Utility model content
A purpose of the present utility model is that optimizing indoor apparatus of air conditioner mainboard controller and the communication of drive control device imitates
Fruit.
According to one side of the present utility model, a kind of air-conditioner controller is proposed, including：Mainboard controller；Drive control
Device；With, light-coupled isolation unit, between mainboard controller and drive control device, light-coupled isolation unit include twin-stage optocoupler every
Connecting line and power supply module from device, between twin-stage optical coupling isolator.
Alternatively, power supply module passes through the outputting drive voltage source of mainboard controller, solar power supply apparatus or wireless confession
Electric installation obtains electric power.
Alternatively, the electric power of acquisition is supplied to twin-stage optical coupling isolator and/or connecting line by power supply module.
Alternatively, the electric power of acquisition is supplied to twin-stage optical coupling isolator by power supply module after voltage transformation.
Alternatively, the busbar voltage input of the busbar voltage output end of mainboard controller and drive control device connects；Drive
Movement controller includes driving voltage converting unit, and busbar voltage is converted into driving voltage.
Alternatively, the speed controling signal from mainboard controller is passed to drive control device by light-coupled isolation unit.
Alternatively, speed controling signal includes the pulse signal of preset frequency；Mainboard controller is by adjusting rotating speed control
The mode of operation of the Duty ratio control drive control device of signal.
Alternatively, the speed feedback signal of light-coupled isolation unit self-powered in future movement controller passes to mainboard controller.
Alternatively, speed feedback signal includes the pulse signal of predetermined duty cycle；Drive control device is anti-by adjusting rotating speed
The driving rotating speed of the frequency feedback drive control device of feedback signal.
Such air-conditioner controller can use the side of bipolar light-coupled isolation between mainboard controller and drive control device
Case carries out communication isolation, and bipolar optical coupling isolator has independent power supply module, on the one hand reduces to blower fan wiring lengths
Limitation, improve signal transmission distance；Another aspect power supply module can make light-coupled isolation unit have different ground levels, excellent
Change the effect of signal isolation.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Schematic description and description of the present utility model is used to explain the utility model, does not form to of the present utility model improper
Limit.In the accompanying drawings：
Fig. 1 is the schematic diagram of one embodiment of air-conditioner controller in the prior art.
Fig. 2 is the schematic diagram of one embodiment of the air-conditioner controller of the application.
Fig. 3 is the circuit diagram of another embodiment of the air-conditioner controller of the application.
Fig. 4 is the flow chart of one embodiment of the means of communication of the air-conditioner controller of the application.
Embodiment
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Connected mode in the prior art between mainboard controller and drive control device is as shown in Figure 1.Mainboard controller is born
Duty performs master control function, including the 220V AC voltage source of acquisition is filtered, rectification produces 310V busbar voltages, and produced
18V, 15V, 12V, 5V, 3.3V voltage are respectively used to communicate, and driving includes sweeping wind turbine, electric expansion valve, lamp plate, water pump control
The operating of the part such as molding block and humidity sensor, and provide 310V busbar voltages and 15V driving electricity to drive control device
Pressure；Drive control device motor operates, and feeds back operating condition to mainboard controller.
The schematic diagram of one embodiment of air-conditioner controller of the present utility model as shown in Fig. 2 including mainboard controller 21,
Drive control device 22 and light-coupled isolation unit 23.Wherein, light-coupled isolation unit 23 includes twin-stage optical coupling isolator 231.It is bipolar
There is connecting line 232 between the two-stage of optical coupling isolator 231.Light-coupled isolation unit 23 also includes independent power supply module 233.
In one embodiment, power supply module 233 can be with as shown in Fig. 2 obtain electricity from the outputting drive voltage source 212 of mainboard controller 21
Power, electric power can also be obtained by solar energy or wireless power supply etc..
Such air-conditioner controller can use the side of bipolar light-coupled isolation between mainboard controller and drive control device
Case carries out communication isolation, and bipolar optical coupling isolator has independent power supply module, on the one hand reduces to blower fan wiring lengths
Limitation, improve signal transmission distance；Another aspect power supply module can make light-coupled isolation unit have different ground levels, excellent
Change the effect of signal isolation.
In one embodiment, drive control device 22 includes driving voltage converting unit 222, can will come from busbar voltage
Driving voltage of the 310V voltage conversions of input 221 needed for drive control device 22, such as 15V.In one embodiment, drive
Voltage conversion unit 222 is high pressure BUCK circuits, can produce+15VDC, be IPM (Intelligent Power Module,
SPM) gate driving circuit offer independent current source.
In the prior art, because mainboard controller is when generating driving voltage, be derived from high frequency transformer one of them around
Group, if the Switching Power Supply poor-performing of mainboard controller, interference signal will pass through high frequency transformer winding coupled to driving
On voltage source, and then have influence on drive control device；And bus power supply is the output voltage of rectifying and wave-filtering bulky capacitor, in high frequency transformation
Before device, by Switching Power Supply effect very little.Therefore, in above-described embodiment air-conditioner controller using busbar voltage is converted
Driving voltage directly is obtained from mainboard controller to substitute for the mode of driving voltage, mainboard controller and driving can be avoided to control
Device processed interferes, and improves the stability of controller.
In one embodiment, the power supply module of light-coupled isolation unit can be respectively twin-stage optical coupling isolator and connecting line
Power supply.If power supply module obtains electric energy from mainboard controller, the electric energy of acquisition is supplied to light-coupled isolation after voltage conversion
Device, such as it is supplied to optocoupler after 15V driving voltage is transformed to 5V or 3.3V by low pressure decompression DC-DC B UCK converters
Isolation circuit.In one embodiment, mainboard controller generation+15VDC in high frequency transformer secondary loop, it is connecting line electricity
Road provides independent current source.
Such air-conditioner controller can be respectively light-coupled isolation before, in light-coupled isolation, after light-coupled isolation provide three kinds not
With the power supply of ground level, the effect of signal isolation is optimized.
The circuit diagram of another embodiment of the air-conditioner controller of the application is as shown in Figure 3.Wherein, one of top
It is divided into mainboard controller partial circuit 31, a part for lower section is drive control device partial circuit 32.
In one embodiment, the two-stage optocoupler of twin-stage optical coupling isolator can be individually positioned in indoor apparatus of air conditioner mainboard
In controller and indoor apparatus of air conditioner drive control device.As shown in U6, U7, U8, U21 in Fig. 3, the composition of as optical coupling isolator is first
Part.The connectivity port of acute pyogenic infection of finger tip mainboard controller and drive control device shown in the square frame of right side, i.e. CN5 acute pyogenic infection of finger tip drive control devices, CN4 generations
Refer to mainboard controller.The function of each interface is as shown in table 1 below：
The mainboard controller of table 1 and drive control device pin explanation
In one embodiment, the speed controling signal of twin-stage light-coupled isolation scheme is the PWM using given frequency
(Pulse Width Modulation, pulse width modulation) signal, PWM fixed frequencies can be (80 ± 1) HZ.Mainboard controls
Pwm signal caused by device is sent to the PWM_IN of drive control device by the PWM_OUT ports in Fig. 3 through light-coupled isolation unit
End.In one embodiment, can be by changing PWM duty cycle come controlled motor rotating speed.According to the different application scenario of motor,
Dutycycle can independently be defined with motor speed or the corresponding relation of torque by engineer.
In one embodiment, the speed feedback signal of twin-stage light-coupled isolation scheme is believed using the PWM of fixed duty cycle
Number, PWM fixed duty cycles can be (50 ± 5) %.Pwm signal caused by drive control device passes through the FEED_BACK_ in Fig. 3
OUT terminal mouth is sent to the FEED_BACK_IN ends of mainboard controller through light-coupled isolation unit.The association of speed feedback signal and rotating speed
View can independently be defined by engineer, preferably 12 pulses/turn, or 30 pulses/turn.
On the one hand such air-conditioner controller reduces to wind when realizing the interaction of speed controling signal and feedback signal
The limitation of machine wiring lengths, improve signal transmission distance；Another aspect power supply module can make light-coupled isolation unit have difference
Ground level, optimize the effect of signal isolation.
The flow chart of one embodiment of the means of communication of air-conditioner controller of the present utility model is as shown in Figure 4.
In step 401, speed controling signal is sent to drive control device by mainboard controller through light-coupled isolation unit.Light
Coupling isolated location between mainboard controller and drive control device, including twin-stage optical coupling isolator, positioned at twin-stage light-coupled isolation
Connecting line and power supply module between device.In one embodiment, power supply module can be driven by the output of mainboard controller
Dynamic voltage source obtains electric power, can also obtain electric power by solar power supply apparatus or wireless power supply.
In step 402, speed feedback signal is fed back to mainboard controller by drive control device through light-coupled isolation unit.
By such method, bipolar light-coupled isolation can be used between mainboard controller and drive control device
Scheme carries out communication isolation, and bipolar optical coupling isolator has independent power supply module, on the one hand reduces and matches somebody with somebody line length to blower fan
The limitation of degree, improve signal transmission distance；Another aspect power supply module can make light-coupled isolation unit have different ground levels,
Optimize the effect of signal isolation.
Finally it should be noted that：Above example is only illustrating the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：Specific embodiment of the present utility model can still be modified or some technical characteristics are equally replaced
Change；Without departing from the spirit of technical solutions of the utility model, it all should cover in the claimed technical scheme of the utility model
Among scope.
Claims (10)
1. a kind of air-conditioner controller, including：
Mainboard controller；
Drive control device；
Light-coupled isolation unit, between the mainboard controller and the drive control device, the light-coupled isolation unit includes
Twin-stage optical coupling isolator, connecting line and power supply module between the twin-stage optical coupling isolator.
2. air-conditioner controller according to claim 1, wherein, the output that the power supply module passes through the mainboard controller
Driving voltage source, solar power supply apparatus or wireless power supply obtain electric power.
3. air-conditioner controller according to claim 1 or 2, wherein, the electric power of acquisition is supplied to institute by the power supply module
State twin-stage optical coupling isolator and/or the connecting line.
4. air-conditioner controller according to claim 3, wherein, the power supply module is by the electric power of acquisition after voltage transformation
It is supplied to the twin-stage optical coupling isolator.
5. air-conditioner controller according to claim 4, wherein, the power supply module uses low pressure buck DC-to-dc
BUCK converters carry out voltage transformation.
6. air-conditioner controller according to claim 1 or 2, wherein,
The busbar voltage output end of the mainboard controller is connected with the busbar voltage input of the drive control device；
The drive control device includes driving voltage converting unit, and the busbar voltage is converted into driving voltage.
7. air-conditioner controller according to claim 1 or 2, wherein,
Speed controling signal from the mainboard controller is passed to the drive control device by the light-coupled isolation unit.
8. air-conditioner controller according to claim 7, wherein,
The speed controling signal includes the pulse signal of preset frequency；
The mainboard controller is by adjusting the Working mould of drive control device described in the Duty ratio control of the speed controling signal
Formula.
9. air-conditioner controller according to claim 1 or 2, wherein,
Speed feedback signal from the drive control device is passed to the mainboard controller by the light-coupled isolation unit.
10. air-conditioner controller according to claim 9, wherein,
The speed feedback signal includes the pulse signal of predetermined duty cycle；
The drive control device is by adjusting the driving rotating speed of drive control device described in the frequency feedback of the speed feedback signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721017470.4U CN207065818U (en) | 2017-08-15 | 2017-08-15 | air conditioner controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721017470.4U CN207065818U (en) | 2017-08-15 | 2017-08-15 | air conditioner controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207065818U true CN207065818U (en) | 2018-03-02 |
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ID=61515326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721017470.4U Active CN207065818U (en) | 2017-08-15 | 2017-08-15 | air conditioner controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300245A (en) * | 2017-08-15 | 2017-10-27 | 珠海格力电器股份有限公司 | Air conditioner controller and communication isolation method |
-
2017
- 2017-08-15 CN CN201721017470.4U patent/CN207065818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300245A (en) * | 2017-08-15 | 2017-10-27 | 珠海格力电器股份有限公司 | Air conditioner controller and communication isolation method |
| CN107300245B (en) * | 2017-08-15 | 2023-12-12 | 珠海格力电器股份有限公司 | Air conditioner controller and communication isolation method |
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