CN106123203A - Control method and device of air conditioner - Google Patents
Control method and device of air conditioner Download PDFInfo
- Publication number
- CN106123203A CN106123203A CN201610431887.9A CN201610431887A CN106123203A CN 106123203 A CN106123203 A CN 106123203A CN 201610431887 A CN201610431887 A CN 201610431887A CN 106123203 A CN106123203 A CN 106123203A
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- China
- Prior art keywords
- state
- air
- conditioner
- cross valve
- running status
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004378 air conditioning Methods 0.000 claims description 15
- 230000002045 lasting effect Effects 0.000 claims description 13
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000001143 conditioned effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001575 pathological effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005728 strengthening Methods 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and a control device of an air conditioner, wherein the method comprises the following steps: acquiring the running state of a pressure switch of the air conditioner; and controlling the conduction state of a four-way valve of the air conditioner according to the running state of the pressure switch so as to realize the pressure balance of the air conditioner system. The invention solves the problem that the service life of the compressor is possibly reduced due to the starting of the compressor with differential pressure after the pressure protection of the air conditioner occurs in the prior art, realizes the rapid balance of the abnormal system pressure after the pressure protection of the air conditioner occurs, ensures the normal and the new operation of the compressor, and enhances the reliability of the system.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to control method and the device of a kind of air-conditioner.
Background technology
, under some bad working environments uses, can often there is low-voltage variation or high voltage protective in one-driving-one air conditioner, and low pressure
Less than then can automatically recover for n time in protection generally special time, due to the air-tightness of system, the system pressure after pressure protection
Dynamic balance is a process slowly, and after pressure switch resets, system is resumed operation automatically, and now compressor band pressure reduction opens
Dynamic, the consequence the most likely brought is: compressor start load is big, starts big electric current, easily causes overload of compressor to protect
Device is protected, and recovers subsequently, and this process such as prosthetic is got involved, then system circulates always, protects, recovers, protects ... this mistake
Journey, ultimately results in compressor and burns.
After there is pressure protection for air-conditioner in correlation technique, compressor band pressure reduction starts, and may cause the compressor life-span
The problem reduced, the most not yet proposes to efficiently solve scheme.
Summary of the invention
The invention provides control method and the device of a kind of air-conditioner, at least to solve air-conditioner appearance in prior art
After pressure protection, compressor band pressure reduction starts, the problem that may cause compressor service life reduction.
For solving above-mentioned technical problem, according to an aspect of disclosure embodiment, the invention provides a kind of air-conditioner
Control method, the method includes: obtain the running status of pressure switch of air-conditioner；Running status control according to pressure switch
The cross valve conducting state of air-conditioner processed, to realize the balance of air-conditioner system pressure.
Further, control the cross valve conducting state of air-conditioner according to the running status of pressure switch, including: at pressure
When the running status of switch is opening, the conducting state of the cross valve controlling air-conditioner is switched to the second shape by the first state
State.
Further, when the running status of pressure switch is opening, control the conducting shape of the cross valve of air-conditioner
State is switched to the second state by the first state, including: monitor and know pressure switch running status in lasting very first time threshold value
During for opening, control air-conditioner out of service；The conducting state of the cross valve of air-conditioner is switched to by the first state
Two-state.
Further, the conducting state of the cross valve of air-conditioner is switched to the second state by the first state, including: in control
Air-conditioner processed out of service more than the second time threshold after, the conducting state of the cross valve of air-conditioner is switched to by the first state
Second state.
Further, after the conducting state of the cross valve of air-conditioner is switched to the second state by the first state, also
Including: monitor know pressure switch running status be closed mode in the lasting very first time threshold value time, control air-conditioner four
Logical valve is under the second state operation.
Further, the method also includes: it is super that monitoring knows that air-conditioner runs the time under cross valve is in the second state
After crossing the 4th time threshold, the conducting state controlling cross valve is switched to the first state by the second state.
Further, very first time threshold value span is [1s, 30s], the second time threshold span be [0s,
120s], the 3rd time threshold span is [1s, 5s], and the 4th time threshold span is [5s, 60s].
Another aspect according to disclosure embodiment, it is provided that the control device of a kind of air-conditioner, this device includes: obtain
Unit, for obtaining the running status of the pressure switch of air-conditioner；Control unit, for the running status control according to pressure switch
The cross valve conducting state of air-conditioner processed, to realize the balance of air-conditioner system pressure.
Further, control unit includes: the first control module, is opening for the running status in pressure switch
Time, the conducting state of the cross valve controlling air-conditioner is switched to the second state by the first state.
Further, the first control module includes: first controls subelement, knows that pressure switch is continuing for monitoring
When running status is opening in one time threshold, control air-conditioner out of service；Second controls subelement, for by air-conditioning
The conducting state of the cross valve of device is switched to the second state by the first state.
Further, the second control subelement is after control air-conditioner is out of service more than the second time threshold, by air-conditioning
The conducting state of the cross valve of device is switched to the second state by the first state.
Further, this device also includes: the second control module, for the conducting state of the cross valve at air-conditioner by the
After one state switches to the second state, monitor and know that pressure switch running status in lasting very first time threshold value is closedown shape
During state, control air-conditioner and run under cross valve is in the second state.
Further, this device also includes: the 3rd control module, knows that air-conditioner is in second at cross valve for monitoring
After time of running under state is more than the 4th time threshold, the conducting state controlling cross valve is switched to the first shape by the second state
State.
In the present invention, by obtaining the state of air-conditioner pressure switch, it is judged that whether air conditioning system is in pressure protection
Running status, confirm be in pressure guard mode and meet pre-conditioned time, control air-conditioner cross valve perform commutation behaviour
Make, to balance the pressure reduction of air conditioning system, it is to avoid cooler compressor always band pressure reduction starts, and efficiently solves in prior art
After pressure protection occurs in air-conditioner, compressor band pressure reduction starts, the problem that may cause compressor service life reduction, it is achieved at air-conditioning
There is Fast-Balance pathological system pressure after pressure protection in device, it is ensured that compressor normally reruns, strengthening system reliability.
Accompanying drawing explanation
Fig. 1 is a kind of optional flow chart of the control method of air-conditioner according to embodiments of the present invention；
Fig. 2 is a kind of optional structured flowchart controlling device of air-conditioner according to embodiments of the present invention；
Fig. 3 is the another kind of optional structured flowchart controlling device of air-conditioner according to embodiments of the present invention；And
Fig. 4 is the another kind of optional structured flowchart controlling device of air-conditioner according to embodiments of the present invention.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the present invention.On the contrary, they are only with the most appended
The example of the apparatus and method that some aspects that described in detail in claims, the present invention are consistent.
Embodiment 1
Below in conjunction with the accompanying drawings the control method of the air-conditioner that the present invention provides is illustrated.
The control method of the air-conditioner that the present invention provides can be applied on domestic one-driving-one air conditioner, it is also possible to is applied to
In the air conditioning system of business air conditioner or particular place, Fig. 1 illustrates a kind of optional of the control method of the air-conditioner of the present invention
Flow chart, as it is shown in figure 1, the method may comprise steps of:
S102, obtains the running status of the pressure switch of air-conditioner；
S104, controls the cross valve conducting state of air-conditioner, to realize air-conditioner system according to the running status of pressure switch
The balance of system pressure.
When implementing, during the running status according to pressure switch controls the cross valve conducting state of air-conditioner,
The conducting state of the cross valve that when the running status of pressure switch is opening, can control air-conditioner is cut by the first state
It is changed to the second state.
Preferably, when controlling the conducting state of cross valve of air-conditioner and being switched to the second state by the first state, monitor
Knowing the time that pressure switch running status is opening, in lasting very first time threshold value, running status is opening
Time, control air-conditioner out of service；The conducting state of the cross valve of air-conditioner is switched to the second state by the first state.
When implementing, after control air-conditioner is out of service more than the second time threshold, by the cross valve of air-conditioner
Conducting state is switched to the second state by the first state.Additionally, by the conducting state of the cross valve of air-conditioner by the first state
After switching to the second state, monitor when knowing pressure switch running status is closed mode in lasting very first time threshold value,
Control air-conditioner to run under cross valve is in the second state.
Afterwards, know that air-conditioner runs the time more than the 4th time threshold under cross valve is in the second state in monitoring,
The conducting state controlling cross valve is switched to the first state by the second state.
Preferably, through great many of experiments analysis, above-mentioned very first time threshold value span can be [1s, 30s], above-mentioned
Two time threshold spans can be [0s, 120s], and above-mentioned 3rd time threshold span can be [1s, 5s], the 4th
Time threshold span can be [5s, 60s].
Above-mentioned preferred embodiment in, by obtain air-conditioner pressure switch state, it is judged that whether air conditioning system
It is in the running status of pressure protection, when confirming be in pressure guard mode and meet pre-conditioned, controls air-conditioner four-way
Valve performs switch operation, to balance the pressure reduction of air conditioning system, it is to avoid cooler compressor always band pressure reduction starts, and efficiently solves
After in prior art, pressure protection occurs in air-conditioner, compressor band pressure reduction starts, and may cause asking of compressor service life reduction
Topic, it is achieved Fast-Balance pathological system pressure after pressure protection occurs in air-conditioner, it is ensured that compressor normally reruns, strengthens
System reliability.
It is described to be better understood from the present invention below as a example by domestic air conditioning:
Domestic air conditioner is heating, is freezing or under dehumidification mode, and machine set compressor has been turned on, when lasting t1 time detecting
Occurring that pressure protects signal to unit, it is judged that unit enters pressure protection, carries out shutdown process, after the t2 time, cross valve performs
Commutation action is to balance system pressure difference, after lasting t3 time detecting to pressure switch is recovered, and the system first device in addition to cross valve
Part is run by the running status before protection, and after the t4 time, cross valve performs commutation action to ensure that cross valve commutation puts in place.Its
In, above-mentioned t1, t2, t3, t4 time assignment can be such that t1=1～30s, t2=0～2min, t3=1～5s, t4=5～
60s。
After shutting down due to pressure protection, system pressure balance needs a period of time, if pressure switch is recovered in the short time, and pressure
Contracting machine meets the condition being again started up, and the startability of compressor is by load effect, and the impact of big pressure reduction is likely to result in compression
Machine card cylinder and cannot start, big electric current now will cause compressor assembly overload protection, repeatedly protection after to the compressor life-span
Have a significant impact.After adding this control, the compressor band pressure reduction after pressure protection will can be avoided to start, thus extend compressor
Service life.
Embodiment 2
Control method based on the air-conditioner provided in above-described embodiment 1, optional embodiment 2 of the present invention additionally provides one
Planting the control device of air-conditioner, specifically, Fig. 2 illustrates a kind of optional structured flowchart of this device, as in figure 2 it is shown, this dress
Put and include:
Acquiring unit 22, for obtaining the running status of the pressure switch of air-conditioner；Control unit 24, for according to pressure
The running status of switch controls the cross valve conducting state of air-conditioner, to realize the balance of air-conditioner system pressure.
Further, as it is shown on figure 3, control unit 24 includes: the first control module 242, for the fortune in pressure switch
When row state is opening, the conducting state of the cross valve controlling air-conditioner is switched to the second state by the first state；Second
Control module 244, after being switched to the second state in the conducting state of the cross valve of air-conditioner by the first state, monitoring obtains
When knowing pressure switch running status is closed mode in lasting very first time threshold value, control air-conditioner and be in second at cross valve
Run under state；For monitoring, 3rd control module 246, knows that air-conditioner runs the time under cross valve is in the second state super
After crossing the 4th time threshold, the conducting state controlling cross valve is switched to the first state by the second state.
Further, as shown in Figure 4, the first control module 242 includes:
First controls subelement 2422, knows that pressure switch running status in lasting very first time threshold value is for monitoring
During opening, control air-conditioner out of service；Second controls subelement 2424, for the conducting shape by the cross valve of air-conditioner
State is switched to the second state by the first state.
Preferably, the second control subelement is after control air-conditioner is out of service more than the second time threshold, by air-conditioner
The conducting state of cross valve switched to the second state by the first state.
About the device in above-described embodiment, wherein unit, module perform the concrete mode of operation relevant
The embodiment of the method is described in detail, explanation will be not set forth in detail herein.
It can be seen from the foregoing description that the present invention is by obtaining the state of air-conditioner pressure switch, it is judged that air conditioning system
Whether it is in the running status of pressure protection, when confirming be in pressure guard mode and meet pre-conditioned, controls air-conditioner
Cross valve performs switch operation, to balance the pressure reduction of air conditioning system, it is to avoid cooler compressor always band pressure reduction starts, effectively
Solve compressor band pressure reduction after pressure protection occurs in air-conditioner in prior art to start, compressor service life reduction may be caused
Problem, it is achieved Fast-Balance pathological system pressure after pressure protection occurs in air-conditioner, it is ensured that compressor normally reruns, and adds
Strong system reliability.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to its of the present invention
Its embodiment.The application is intended to any modification, purposes or the adaptations of the present invention, these modification, purposes or
Person's adaptations is followed the general principle of the present invention and includes the common knowledge in the art that the present invention does not invents
Or conventional techniques means.Description and embodiments is considered only as exemplary, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and
And various modifications and changes can carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (13)
1. the control method of an air-conditioner, it is characterised in that including:
Obtain the running status of the pressure switch of air-conditioner；
Running status according to described pressure switch controls the cross valve conducting state of described air-conditioner, to realize air-conditioner system
The balance of pressure.
Method the most according to claim 1, it is characterised in that the described running status according to described pressure switch controls institute
State the cross valve conducting state of air-conditioner, including:
When the running status of described pressure switch is opening, control the conducting state of cross valve of described air-conditioner by
One state switches to the second state.
Method the most according to claim 2, it is characterised in that the described running status in described pressure switch is for opening shape
During state, the conducting state of the cross valve controlling described air-conditioner is switched to the second state by the first state, including:
When monitoring is known described pressure switch running status is opening in lasting very first time threshold value, control described air-conditioning
Device is out of service；
The conducting state of the cross valve of air-conditioner is switched to the second state by the first state.
Method the most according to claim 3, it is characterised in that described by the conducting state of the cross valve of air-conditioner by first
State switches to the second state, including:
After the described air-conditioner of described control is out of service more than the second time threshold, by the conducting state of the cross valve of air-conditioner
The second state is switched to by the first state.
Method the most according to claim 4, it is characterised in that described by the conducting state of the cross valve of air-conditioner by
After one state switches to the second state, also include:
When monitoring is known described pressure switch running status is closed mode in lasting very first time threshold value, control described air-conditioning
Device runs under described cross valve is in described second state.
Method the most according to claim 5, it is characterised in that also include:
Monitoring knows that described air-conditioner runs the time more than the 4th time threshold under described cross valve is in described second state
After, the conducting state controlling described cross valve is switched to the first state by the second state.
Method the most according to claim 6, it is characterised in that
Described very first time threshold value span is [1s, 30s], and described second time threshold span is [0s, 120s], institute
Stating the 3rd time threshold span is [1s, 5s], and described 4th time threshold span is [5s, 60s].
8. the control device of an air-conditioner, it is characterised in that including:
Acquiring unit, for obtaining the running status of the pressure switch of air-conditioner；
Control unit, controls the cross valve conducting state of described air-conditioner for the running status according to described pressure switch, with
Realize the balance of air-conditioner system pressure.
Device the most according to claim 8, it is characterised in that described control unit includes:
First control module, for when the running status of described pressure switch is opening, controls the four of described air-conditioner
The conducting state of logical valve is switched to the second state by the first state.
Device the most according to claim 9, it is characterised in that described first control module includes:
First controls subelement, knows that described pressure switch running status in lasting very first time threshold value is unlatching for monitoring
During state, control described air-conditioner out of service；
Second controls subelement, for the conducting state of the cross valve of air-conditioner is switched to the second state by the first state.
11. devices according to claim 10, it is characterised in that described second controls subelement at the described sky of described control
After adjusting device out of service more than the second time threshold, the conducting state of the cross valve of air-conditioner is switched to second by the first state
State.
12. devices according to claim 11, it is characterised in that also include:
Second control module, for described air-conditioner cross valve conducting state by the first state switch to the second state it
After, monitor when knowing described pressure switch running status is closed mode in lasting very first time threshold value, control described air-conditioning
Device runs under described cross valve is in described second state.
13. devices according to claim 12, it is characterised in that also include:
For monitoring, 3rd control module, knows that described air-conditioner runs the time under described cross valve is in described second state
After the 4th time threshold, the conducting state controlling described cross valve is switched to the first state by the second state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431887.9A CN106123203A (en) | 2016-06-15 | 2016-06-15 | Control method and device of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431887.9A CN106123203A (en) | 2016-06-15 | 2016-06-15 | Control method and device of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106123203A true CN106123203A (en) | 2016-11-16 |
Family
ID=57469738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610431887.9A Pending CN106123203A (en) | 2016-06-15 | 2016-06-15 | Control method and device of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106123203A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297148A (en) * | 2018-09-04 | 2019-02-01 | 珠海格力电器股份有限公司 | Heat pump unit, refrigeration starting low-voltage protection method thereof, computer equipment and storage medium |
| CN109751234A (en) * | 2019-01-14 | 2019-05-14 | 四川虹美智能科技有限公司 | A kind of freezer compressor test device |
| CN110332670A (en) * | 2019-07-16 | 2019-10-15 | 珠海格力电器股份有限公司 | Compressor control method and control device and refrigerant system |
| CN113551378A (en) * | 2020-04-26 | 2021-10-26 | 青岛海尔空调电子有限公司 | Control method, system and device for preventing low-voltage fault during low-temperature heating starting of air conditioner |
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| CN109297148A (en) * | 2018-09-04 | 2019-02-01 | 珠海格力电器股份有限公司 | Heat pump unit, refrigeration starting low-voltage protection method thereof, computer equipment and storage medium |
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| CN109751234B (en) * | 2019-01-14 | 2020-04-10 | 四川虹美智能科技有限公司 | Refrigerator compressor testing arrangement |
| CN110332670A (en) * | 2019-07-16 | 2019-10-15 | 珠海格力电器股份有限公司 | Compressor control method and control device and refrigerant system |
| CN113551378A (en) * | 2020-04-26 | 2021-10-26 | 青岛海尔空调电子有限公司 | Control method, system and device for preventing low-voltage fault during low-temperature heating starting of air conditioner |
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