CN109114775A - Air conditioning system control circuit and air conditioning system - Google Patents
Air conditioning system control circuit and air conditioning system Download PDFInfo
- Publication number
- CN109114775A CN109114775A CN201811195390.7A CN201811195390A CN109114775A CN 109114775 A CN109114775 A CN 109114775A CN 201811195390 A CN201811195390 A CN 201811195390A CN 109114775 A CN109114775 A CN 109114775A
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- Prior art keywords
- air
- conditioning system
- submodule
- control circuit
- pole
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 74
- 239000004065 semiconductor Substances 0.000 claims description 18
- 238000005070 sampling Methods 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 abstract description 7
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides an air conditioning system control circuit and air conditioning system, the output of two arbitrary submodules in a plurality of submodules is for being connected with the operation, promptly arbitrary two between the tie point in a plurality of submodules are for being and the operation relation. Because the output ends of any two of the plurality of sub-modules are connected with the operation, when any one of the sub-modules in the control circuit of the air-conditioning system fails, the output ends of the plurality of sub-modules are abnormal, and no current is output at the moment, the control circuit of the air-conditioning system cannot start to control the load connected with the output ends of the plurality of sub-modules. When the plurality of sub-modules do not have faults at the same time, the air conditioning system control circuit is started normally to control the load connected with the output ends of the plurality of sub-modules, so that the load can work normally. Therefore, the air conditioning system is directly and effectively protected through the air conditioning system control circuit, and automatic hardware protection of the air conditioning system is achieved.
Description
Technical field
This application involves air-conditioning technical fields, more particularly to a kind of Air-condition system control circuit and air-conditioning system.
Background technique
With the rapid development of society, people's quality of life is continuously improved, and multi-connected machine use is becoming increasingly popular.Air-conditioning system
System is the chief component in building, including a plurality of types of air-conditioner sets, such as multi-connected machine, Screw chiller, centrifugation
Unit etc..With the reinforcement of air-conditioning products performance homogeneity evolving trend, what market competition focus had increasingly concentrated on product can
By property aspect.Less trouble, long service life, good operating stability and environmental suitability are strong etc. to be related to the index of product reliability
It has been acknowledged as the core index of reflection air-conditioning quality.
As one of air-conditioning main component, valve is the key that its drive control, and the control of each valve be through
It is realized after the subsystem link that is mutually linked layer by layer.Traditional air-conditioning system is usually passed through by each control subsystem
It connects to constitute machine system, any of subsystem breaks down, and need to inform backend systems by software, then valve
Door receives final control signal, however, the software control of tandem has the problems such as delay and low sensitivity, be easy to cause complete machine
System reliability is low, and system protection is even unable to the potential problem of effective protection not in time.
Summary of the invention
Based on this, it is necessary to for the low problem of the total reliability of traditional air-conditioning system, provide a kind of total reliability
The control circuit and air-conditioning system of high air-conditioning system.
It includes multiple submodule that the application, which provides a kind of Air-condition system control circuit,.Any two in the multiple submodule
The output end of submodule is to connect with operation.
The output end of submodule described in any two uses MOS in the multiple submodule in one of the embodiments,
Pipe progress is connect with operation.
The control circuit of the air-conditioning system further includes multiple N-channel MOS pipes, i-th of son in one of the embodiments,
The output end of module is connect with the pole G of i-th of N-channel MOS pipe, the pole S of i-th of N-channel MOS pipe and i+1 N-channel
The pole D of metal-oxide-semiconductor connects, and the pole G of the i+1 N-channel MOS pipe is connect with the output end of i+1 submodule, described i-th+
The pole S of 1 N-channel MOS pipe is connect with the pole D of the i-th+2 N-channel MOS pipes, the pole G of the i-th+2 N-channel MOSs pipe and the
The output end connection of i+2 submodule, output end of the pole S of the i-th+2 N-channel MOSs pipe as the multiple submodule,
Wherein, i is positive integer.
The control circuit of the air-conditioning system further includes multiple diodes, i-th of diode in one of the embodiments,
Anode connect with the pole S of i-th of N-channel MOS pipe, the cathode of i-th of diode is connect with the pole D of i-th of N-channel MOS pipe,
Wherein, i is positive integer.
The pole D of the corresponding 1st N-channel MOS pipe of the 1st submodule is connect with feeder ear in one of the embodiments,.
The control circuit of the air-conditioning system further includes sampling resistor in one of the embodiments, the sampling resistor
One end connect with the output end of the multiple submodule, the other end of sampling resistor ground connection.
A kind of air-conditioning system in one of the embodiments, including Air-condition system control circuit described in any of the above embodiments.
In one of the embodiments, the air-conditioning system further include load, the input terminal of the load with it is the multiple
The output end of submodule connects, to control the loaded work piece.
The load is the control valve in the air-conditioning system in one of the embodiments,.
The submodule is driven submodule in one of the embodiments, for controlling the blower of air-conditioning system.
The application provides a kind of Air-condition system control circuit and air-conditioning system, any two submodule in the multiple submodule
The output end of block is to connect with operation, that is, any two are and operation relation between the tie point in the multiple submodule.
Since the output end of any two submodule in the multiple submodule is to connect with operation, so working as the Air-condition system control
When any one of submodule breaks down in circuit, the output end of the multiple submodule is then exception, at this time without electricity
Stream output, then the Air-condition system control circuit can not start the load that control is connect with the output end of the multiple submodule.
When failure is not present simultaneously in the multiple submodule, the Air-condition system control circuit normally starts control and the multiple son
The load of the output end connection of module, so that the load can work normally.Therefore, pass through the Air-condition system control circuit
Air-conditioning system be directly effectively protected, to realize the automatic hardware protection to the air-conditioning system.
Detailed description of the invention
Fig. 1 be air-conditioning system provided by the present application and grade control connection schematic diagram；
Fig. 2 is the connection schematic diagram of air-conditioning system in one embodiment provided by the present application.
Specific embodiment
In order to which the objects, technical solutions and advantages of the application are more clearly understood, by the following examples, and combine attached
Figure, is further elaborated the application.It should be appreciated that specific embodiment described herein is only to explain this Shen
Please, it is not used to limit the application.
It is herein component institute serialization number itself, such as " first ", " second " etc., is only used for distinguishing described object,
Without any sequence or art-recognized meanings.And " connection ", " connection " described in the application, unless otherwise instructed, include directly and
It is indirectly connected with (connection).In the description of the present application, it is to be understood that term " on ", "lower", "front", "rear", " left side ",
The orientation of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside", " clockwise ", " counterclockwise " or position are closed
System indicates to be based on the orientation or positional relationship shown in the drawings, being merely for convenience of description the application and simplifying description
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the application.
Referring to Figure 1, it includes multiple submodule that the application, which provides a kind of Air-condition system control circuit,.The multiple submodule
The output end of middle any two submodule is to connect with operation.
The output end of any two submodule is connect with operation in the multiple submodule, that is, the multiple submodule
In tie point A1、A2、…、AnBetween any two be and operation relation to respectively correspond to constitute the Air-condition system control circuit
In n submodule.Since the output end of any two submodule in the multiple submodule is to connect with operation, so working as institute
When stating any one of submodule failure in Air-condition system control circuit, the output end of the multiple submodule is then different
Often, it is exported at this time without electric current, then the Air-condition system control circuit can not start the output of control with the multiple submodule
Hold the load of connection.When failure is not present simultaneously in the multiple submodule, the Air-condition system control circuit normally starts control
The load connecting with the output end of the multiple submodule is made, so that the load can work normally.Therefore, pass through the sky
Adjusting system control circuit be directly effectively protected to air-conditioning system, to realize to the automatic hard of the air-conditioning system
Part protection.
Specifically, it is assumed that the unreliable degree of the submodule i is respectively Pi(i=1,2 ..., n), the then air-conditioning system
Whole unreliable degree P=1- (1-P1)(1-P2)(1-Pn)。
However, being needed successively in traditional air-conditioning system when a certain submodule (being assumed to be submodule i=1) breaks down
Inform other submodules (submodule 2 ..., n) of 1 rear end of submodule, final load receives abnormal signal, then is closed accordingly
Disconnected and shutdown processing.Assuming that the unreliable degree of submodule i is Pi(1,2 ..., n), then unreliable degree P=P1+P2+Pn。
Therefore, it is known that P1 is greater than P2, and being provided with the whole of the air-conditioning system of the Air-condition system control circuit can
By Du Genggao.
The Air-condition system control circuit by the output end of any two submodule in the multiple submodule is and fortune
Connection is calculated, and the output end of the multiple submodule and the connection of the input terminal of load have changed the control function of the air-conditioning system
Implementation enhances the whole reliability of the air-conditioning system.To so that hardware when the air-conditioning system occurs abnormal
Can cease to be in force automatically ensures system safety, solves the unreliable of software control.
In one embodiment, in the multiple submodule submodule described in any two output end using metal-oxide-semiconductor into
Row is connect with operation.
Connected when the output end of submodule described in any two is connect with operation in the multiple submodule using metal-oxide-semiconductor
It connects, that is to say, that the tie point A in the multiple submodule1、A2、…、AnJunction is respectively arranged with metal-oxide-semiconductor, passes through metal-oxide-semiconductor
Multiple submodules are done and are connect with operation.That is, the output end of each submodule connects a metal-oxide-semiconductor, then by more
A metal-oxide-semiconductor (M1、M2、…、Mn) do the output end of submodule described in any two and operation.
Metal-oxide-semiconductor may be used as power supply or driving uses, and is also used as switch and uses.Metal-oxide-semiconductor includes N-type or p-type
Metal-oxide-semiconductor, the electric current to be drained by being added in the voltage of input terminal grid come control output end.Metal-oxide-semiconductor is voltage-controlled device, by being added in grid
Voltage on extremely carrys out control device.
In one embodiment, the Air-condition system control circuit further includes multiple N-channel MOS pipes, i-th submodule
Output end SiWith i-th of N-channel MOS pipe MiThe pole G connection, i-th of N-channel MOS pipe MiThe pole S and i+1 N-channel
Metal-oxide-semiconductor Mi+1The pole D connection, the i+1 N-channel MOS pipe Mi+1The pole G and i+1 submodule Si+1Output end connect
It connects, the i+1 N-channel MOS pipe Mi+1The pole S and the i-th+2 N-channel MOS pipe Mi+2The pole D connection, the i-th+2 N
Channel MOS tube Mi+2The pole G and the i-th+2 submodule Si+2Output end connection, the i-th+2 N-channel MOSs pipe Mi+2The pole S
Output end as the multiple submodule.Wherein, i is positive integer.
Specifically, it is assumed that the control circuit of the air-conditioning system further includes n N-channel MOS pipe.1st submodule S1's
Output end and the 1st N-channel MOS pipe M1The pole G connection, the 1st N-channel MOS pipe M1The pole D connect with feeder ear, it is described
1st N-channel MOS pipe M1The pole S and the 2nd N-channel MOS pipe M2The pole D connection, the 2nd N-channel MOS pipe M2The pole G
With the 2nd submodule S2Output end connection.And so on, (n-1)th submodule Sn-1Output end and (n-1)th N-channel
Metal-oxide-semiconductor Mn-1The pole G connection, (n-1)th N-channel MOS pipe Mn-1The pole D and the n-th -2 N-channel MOS pipe Mn-2The pole S connect
It connects, (n-1)th N-channel MOS pipe Mn-1The pole S and n-th of N-channel MOS pipe MnThe pole D connection, n-th of N-channel
Metal-oxide-semiconductor MnThe pole G and n-th of submodule SnOutput end connection, n-th of N-channel MOS pipe MnThe pole S and load input terminal
Connection.
Specifically, the feeder ear can be control voltage end, supply voltage end or power end etc..
Wherein, with the 1st submodule S1With the 2nd submodule S2For.When the 1st N-channel MOS pipe
M1The pole G and the pole S voltage VGSWhen greater than certain threshold value, the 1st N-channel MOS pipe M1Conducting.That is, the described 1st
A N-channel MOS pipe M1The pole G when reaching the high level of some threshold value, the 1st N-channel MOS pipe M1Conducting, it is described at this time
1st submodule S1It works normally, does not break down.Wherein, the 1st N-channel MOS pipe M1The voltage of the pole G be typically up to
To 4V or 10V.
As the 1st submodule S1When normal work, there is electric current to pass through the 2nd N-channel MOS pipe M2.At this point, if
The 2nd submodule S2It works normally, then the 2nd N-channel MOS pipe M2The pole G and the pole S voltage VGS be greater than certain threshold
Value, the 2nd N-channel MOS pipe M2Conducting.
If the 2nd submodule S2It breaks down, then second N-channel MOS pipe M2It is not turned on, does not have at this time
Electric current passes through second N-channel MOS pipe M2The pole S, control can not be started so as to cause the Air-condition system control circuit
With second N-channel MOS pipe M2The pole S connection load.
As the 1st submodule S in the Air-condition system control circuit1, the 2nd submodule S2..., it is described
N-th of submodule SnWhen all working normally, the 1st N-channel MOS pipe M described at this time1, the 2nd N-channel MOS pipe
M2..., n-th of N-channel MOS pipe MnIt all turns on.At this point, the output end of the multiple submodule is high level.Namely
Say n-th of submodule SnThe pole S there are voltage, the Air-condition system control circuit normally start control load.
In one embodiment, the Air-condition system control circuit further includes multiple diodes, the anode of i-th of diode
It is connect with the pole S of i-th of N-channel MOS pipe, the cathode of i-th of diode is connect with the pole D of i-th of N-channel MOS pipe, wherein i
For positive integer.
That is the anode and i-th of N-channel MOS pipe M of i-th of diode DiiThe pole S connection, i-th of diode Di
Cathode and i-th of N-channel MOS pipe MiThe pole D connection.
Since there are parasitic capacitances for metal-oxide-semiconductor, so passing through i-th of diode DiWith i-th of N-channel MOS
Pipe MiReverse parallel connection can prevent i-th of N-channel MOS pipe MiPunctured in inductive circuit by higher inverse electromotive force.
Wherein, design parameter setting can be calculated according to the actual situation, choose suitable model parameter.
In one embodiment, the control circuit of the air-conditioning system further includes sampling resistor, and the one of the sampling resistor
End is connect with the output end of the multiple submodule, the other end ground connection of the sampling resistor.
Wherein, the sampling resistor R1 is build-out resistor.It can make input-output equipment by the sampling resistor R1
Resistance is more connected with other circuit parts, so that the work that the air-conditioning system is more stable.
In one embodiment, when the output end of submodule described in any two is connect with operation in the multiple submodule
It can also be using other switches, as long as coincident circuit function.
In one embodiment, a kind of air-conditioning system, including Air-condition system control circuit described in any of the above embodiments.
Wherein, the air-conditioning system can may be central air-conditioning for domestic air conditioning.The indoor electric of the air-conditioning system
Road part includes power circuit, communicating circuit, zero cross detection circuit, temperature sampling circuit, master chip sample circuit, display driving
Circuit, inner blower driving circuit, air door driving circuit etc..The outdoor circuit part of the air-conditioning system includes power filter electricity
Road, communicating circuit, blower drive control circuit, four-way valve-driving circuit, temperature sampling circuit, electronic expansion valve-driving circuit,
Master chip control circuit, voltage/current sample circuit, switching power circuit, compressor drive circuit etc..
Airhandling equipment in the air-conditioning system includes blower, filter, heater, cooler, humidifier, dehumidification
Device and refrigeration unit etc..
In one embodiment, the submodule can be driven submodule, for controlling the interior of the air-conditioning system
Blower, outdoor fan, compressor etc..
Specifically, the submodule is driven compressor submodule, for driving the compressor operating of the air-conditioning system.
Specifically, the submodule is four-way valve driven submodule, for driving the four-way valve of the air-conditioning system.
Specifically, the submodule is electric expansion valve driven submodule, is used for drive control electric expansion valve.
Specifically, the submodule is communication submodule, for realizing the communication of air-conditioning system.
In one embodiment, the air-conditioning system further includes load, the input terminal of the load and the multiple submodule
The output end of block connects, to control the loaded work piece.
Wherein, the load can be the control valve, indoor fan, outdoor fan, compressor, aobvious in the air-conditioning system
Show device etc..
Specifically, since the output end of any two submodule in the multiple submodule is to connect with operation, so working as
When any one of submodule breaks down in the air-conditioning system, the output end of the multiple submodule is then abnormal letter
Number, it is exported at this time without electric current.To which the input terminal of the control valve is then abnormal signal.When the input terminal of the control valve
When getting abnormal signal, the control valve is in an off state, and has carried out directly effective protect to the air-conditioning system at this time
Shield, thus the automatic hardware protection of the system for realizing the air-conditioning system.
The air-conditioning system passes through the output end of any two submodule in the multiple submodule to connect with operation, and
The output end of the multiple submodule is connect with the input terminal of the control valve, and the control function for having changed the air-conditioning system is real
Existing mode enhances the whole reliability of the air-conditioning system.To hardware when the air-conditioning system being enabled to occur abnormal
Ceasing to be in force automatically ensures system safety, solves the unreliable of software control.
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 the application the scope of the patents therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the concept of this application, various modifications and improvements can be made, these belong to the guarantor of the application
Protect range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of Air-condition system control circuit characterized by comprising
Multiple submodule, the output end of any two submodule is to connect with operation in the multiple submodule.
2. the control circuit of air-conditioning system as described in claim 1, which is characterized in that any two in the multiple submodule
The output end of the submodule is connect using metal-oxide-semiconductor progress with operation.
3. Air-condition system control circuit as claimed in claim 2, which is characterized in that the control circuit of the air-conditioning system is also wrapped
Multiple N-channel MOS pipes are included, the output end of i-th of submodule is connect with the pole G of i-th of N-channel MOS pipe, i-th of N-channel
The pole S of metal-oxide-semiconductor is connect with the pole D of i+1 N-channel MOS pipe, the pole G of the i+1 N-channel MOS pipe and i+1 height
The output end of module connects, and the pole S of the i+1 N-channel MOS pipe is connect with the pole D of the i-th+2 N-channel MOS pipes, described
The pole G of the i-th+2 N-channel MOS pipes is connect with the output end of the i-th+2 submodules, the pole S of the i-th+2 N-channel MOSs pipe
Output end as the multiple submodule, wherein i is positive integer.
4. Air-condition system control circuit as claimed in claim 3, which is characterized in that the control circuit of the air-conditioning system is also wrapped
Include multiple diodes, the anode of i-th of diode is connect with the pole S of i-th of N-channel MOS pipe, the cathode of i-th of diode with
The pole the D connection of i-th of N-channel MOS pipe, wherein i is positive integer.
5. Air-condition system control circuit as claimed in claim 3, which is characterized in that the corresponding 1st N ditch of the 1st submodule
The pole D of road metal-oxide-semiconductor is connect with feeder ear.
6. Air-condition system control circuit as claimed in claim 3, which is characterized in that the control circuit of the air-conditioning system is also wrapped
Include sampling resistor, one end of the sampling resistor is connect with the output end of the multiple submodule, the sampling resistor it is another
End ground connection.
7. a kind of air-conditioning system, which is characterized in that including Air-condition system control circuit as described in any one of claim 1 to 9.
8. air-conditioning system as claimed in claim 7, which is characterized in that the air-conditioning system further includes load, the load
Input terminal is connect with the output end of the multiple submodule, to control the loaded work piece.
9. air-conditioning system as claimed in claim 8, which is characterized in that the load is the control valve in the air-conditioning system.
10. air-conditioning system as claimed in claim 8, which is characterized in that the submodule is driven submodule, for controlling sky
The blower of adjusting system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195390.7A CN109114775B (en) | 2018-10-15 | 2018-10-15 | Air conditioning system control circuit and air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195390.7A CN109114775B (en) | 2018-10-15 | 2018-10-15 | Air conditioning system control circuit and air conditioning system |
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| CN109114775A true CN109114775A (en) | 2019-01-01 |
| CN109114775B CN109114775B (en) | 2023-09-05 |
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| CN109114775B (en) | 2023-09-05 |
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