CN104791960B - A kind of air conditioner unloading control system and method - Google Patents
A kind of air conditioner unloading control system and method Download PDFInfo
- Publication number
- CN104791960B CN104791960B CN201510217039.3A CN201510217039A CN104791960B CN 104791960 B CN104791960 B CN 104791960B CN 201510217039 A CN201510217039 A CN 201510217039A CN 104791960 B CN104791960 B CN 104791960B
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- Prior art keywords
- aperture
- magnetic valve
- compressor
- temperature range
- air conditioner
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Classifications
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- 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
- F24F2110/10—Temperature
-
- 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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Abstract
The present invention relates to air conditioner off-load field, disclose a kind of air conditioner unloading control system and method, in air conditioner, the magnetic valve taken over by magnetic valve controls the compressor exhaust pipe to lead to the gas flow of muffler, to realize the control that off-load is carried out to compressor, and condenser is cooled down by blower fan outside compressor, the system includes：Temperature sensor, for detecting outdoor environment temperature；And controller, for when the air conditioner receives starting-up signal, the aperture of the magnetic valve to be controlled according to the outdoor environment temperature detected.The present invention controls the aperture for the magnetic valve that off-load is carried out to compressor according to the outdoor environment temperature detected so that the timely unloading pressure of energy when air conditioner starts, ensures that compressor smoothly starts, it is achieved thereby that the reliability service of system.
Description
Technical field
The present invention relates to air conditioner off-load technology, in particular it relates to a kind of air conditioner unloading control system and method.
Background technology
Air conditioner easily occurs that electric current is excessive, system pressure in the case where starting moment, particularly outdoor environment temperature height
The problem of power is too high, so easily causes overload of compressor and protect and compressor stop jumping.Especially for using pipe with small pipe diameter or
The air conditioner of micro-channel heat exchanger, it is easier to compressor stop jumping be in the presence of, or even the shape that can not start compressor occurs
Condition.
At present, although some air conditioners are mounted with over-pressed unloading valve, i.e., it is opened in the case where compressor pressure is excessive,
To carry out off-load, although this can solve a part of problem, because over-pressed unloading valve is the ability in the case where pressure exceedes predetermined pressure
Action, so it is too high to still result in instantaneous pressure during compressor start, and over-pressed unloading valve also either acts without action
But pressure does not reduce immediately, thus the phenomenon of overload of compressor stop jumping still occurs.
The content of the invention
It is an object of the invention to provide a kind of air conditioner unloading control system and method, for solving air conditioner on startup
Timely unloading pressure, ensure the problem of compressor smoothly starts.
To achieve these goals, the invention provides a kind of air conditioner unloading control system, in the air conditioner, by
Magnetic valve in magnetic valve adapter controls the compressor exhaust pipe to lead to the gas flow of muffler, and compressor is carried out with realizing
Unloading control, the system include：Temperature sensor, for detecting outdoor environment temperature；And controller, in the air-conditioning
When device receives starting-up signal, the aperture of the magnetic valve is controlled according to the outdoor environment temperature detected.
Preferably, the controller controls the aperture of magnetic valve to include according to the outdoor environment temperature detected：Institute
In the case that the outdoor environment temperature of detection is in the i-th temperature range, it is the i-th aperture that the controller, which controls the magnetic valve,；
Wherein, i=1,2 ... ..., N, N are integer, and N >=2.
Preferably, N is equal to 3；Wherein, the upper limit of the 1st temperature range<The lower limit of 2nd temperature range, the 2nd temperature range
The upper limit<The lower limit of 3rd temperature range, the 1st aperture<2nd aperture<3rd aperture.
Preferably, in the case of i=1, the outer blower fan of the compressor and compressor starts simultaneously；And in i=2 and i
In the case of=3, blower fan restarts the compressor after starting a period of time outside the compressor.
Preferably, the controller controls the aperture of magnetic valve to include according to the outdoor temperature detected：In the pressure
Contracting machine after first time period is run in the case that the magnetic valve is in the i-th aperture, open by the controller control magnetic valve
Degree halves, and in the case where the compressor is the aperture halved in the aperture of the magnetic valve run second time period it
Afterwards, it is 0 that the controller, which controls the aperture of the magnetic valve,.
Preferably, the 1st temperature range is less than or equal to 30 degree, and the 1st aperture is magnetic valve maximum opening
20%；2nd temperature range is more than 30 degree and less than 35 degree, and the 2nd aperture is the 30% of magnetic valve maximum opening；With
And the 3rd temperature range is more than or equal to 35 degree, the 3rd aperture is the 40% of magnetic valve maximum opening.
Correspondingly, present invention also offers a kind of air conditioner unloading control method, in the air conditioner, connect by magnetic valve
Magnetic valve on pipe controls compressor exhaust pipe to lead to the gas flow of muffler, to realize carries out off-load control to compressor
System, this method include：Detect outdoor environment temperature；And when the air conditioner receives starting-up signal, according to what is detected
Outdoor environment temperature controls the aperture of the magnetic valve.
Preferably, it is described to control the aperture of magnetic valve to include according to the outdoor environment temperature detected：What is detected
In the case that outdoor environment temperature is in the i-th temperature range, it is the i-th aperture to control the magnetic valve；Wherein, i=1,2 ... ...,
N, N are integer, and N >=2.
Preferably, N is equal to 3；Wherein, the upper limit of the 1st temperature range<The lower limit of 2nd temperature range, the 2nd temperature range
The upper limit<The lower limit of 3rd temperature range, the 1st aperture<2nd aperture<3rd aperture.
Preferably, in the case of i=1, the outer blower fan of the compressor and compressor starts simultaneously；And in i=2 and i
In the case of=3, blower fan restarts the compressor after starting a period of time outside the compressor.
Preferably, it is described to control the aperture of magnetic valve to include according to the outdoor environment temperature detected：In the compression
Machine controls the aperture of the magnetic valve to halve after first time period is run in the case that the magnetic valve is in the i-th aperture, and
After second time period is run in the case that the compressor is the aperture halved in the aperture of the magnetic valve, described in control
The aperture of magnetic valve is 0.
Preferably, the 1st temperature range is less than or equal to 30 degree, and the 1st aperture is magnetic valve maximum opening
20%；2nd temperature range is more than 30 degree and less than 35 degree, and the 2nd aperture is the 30% of magnetic valve maximum opening；With
And the 3rd temperature range is more than or equal to 35 degree, the 3rd aperture is the 40% of magnetic valve maximum opening.
Pass through above-mentioned technical proposal, the present invention carry out off-load to control according to the outdoor environment temperature detected to compressor
Magnetic valve aperture so that when air conditioner starts can timely unloading pressure, ensure that compressor smoothly starts, it is achieved thereby that
The reliability service of system.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
Accompanying drawing is for providing a further understanding of the present invention, and a part for constitution instruction, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the configuration diagram of air conditioner external provided by the invention；
Fig. 2 is the block diagram of air conditioner Load Relief System provided by the invention；
Fig. 3 is the flow chart of air conditioner unloading control method provided by the invention；And
Fig. 4 is the flow chart for the air conditioner unloading control method that the specific embodiment of the invention provides.
Description of reference numerals
The compressor exhaust pipe of 1 compressor 2
The magnetic valve of 3 magnetic valve adapter 4
The condenser of 5 four-way valve 6
The evaporator of 7 throttling arrangement 8
9 mufflers
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Fig. 1 is the configuration diagram of air conditioner external provided by the invention, as shown in figure 1, the gas that compressor 1 exports passes through
Compressor exhaust pipe 2 reaches four-way valve 5, then reaches condenser 6, and the outer blower fan (not shown) of compressor is entered to condenser 6
Row radiating, evaporator 8 is reached by throttling arrangement 7 by 6 condensed liquid of condenser, and hot friendship is carried out by evaporator 8
Change, the gas after then being gasified by evaporator 8 reaches muffler 9 by four-way valve 5 again, to reenter compressor.For
The timely off-load of compressor can be made, a pipeline can be connected between compressor exhaust pipe 2 and muffler 9, i.e. magnetic valve connects
Pipe, and a magnetic valve 4 is connected in the magnetic valve adapter 3, so as to by controlling the opening and closing of the magnetic valve 4 and opening
Spend to control compressor exhaust pipe 2 to lead to the gas flow of muffler 9, unloading control is carried out to compressor so as to realize, also
It is to say, in the case where needing to carry out off-load, directly can be led to the gas in compressor exhaust pipe 2 by magnetic valve adapter 3
To muffler 9.
Fig. 2 is the block diagram of air conditioner Load Relief System provided by the invention, as shown in Fig. 2 the system includes temperature sensor
And controller.Temperature sensor is used to detect outdoor environment temperature, thus can be placed on outdoor optional position, it is preferable that can
With the position being placed near compressor 1.Controller is used for when air conditioner receives starting-up signal, according to the outdoor detected
Environment temperature controls the aperture of magnetic valve 4 (as shown in fig. 1).
Outdoor environment temperature residing for compressor 1 is different, and the gas pressure that compressor 1 exports is also just different, if however,
Pressure crosses conference and causes the overload protection of compressor 1 so as to the stop jumping phenomenon of compressor 1 occur, if pressure is too small and can not meet need
Ask, so, the present invention controls the aperture of magnetic valve 4 according to the outdoor environment temperature residing for compressor 1, i.e., according to compressor 1
Residing outdoor environment temperature controls the degree of off-load, solving this problem.
In order to realize above technical scheme, controller controls magnetic valve according to the outdoor environment temperature detected
Aperture includes：In the case where the outdoor environment temperature detected is in the i-th temperature range, controller control magnetic valve 4 is i-th
Aperture；Wherein, i=1,2 ... ..., N, N are integer, and N >=2.Specifically, multiple temperature ranges can be preset, according to
The temperature range residing for outdoor environment temperature that is detected controls the aperture of magnetic valve 4.
Generally, temperature range can be set as to 3, i.e. N is equal to 3.Specifically, in the outdoor ring detected
In the case that border temperature is in the 1st temperature range, controller control magnetic valve 4 is the 1st aperture, in the outdoor environment temperature detected
In the case that degree is in the 2nd temperature range, controller control magnetic valve 4 is the 2nd aperture, at the outdoor environment temperature detected
In the case of the 3rd temperature range, controller control magnetic valve 4 is the 3rd aperture.Wherein, the upper limit of the 1st temperature range<2nd temperature
Spend the lower limit of scope, the upper limit of the 2nd temperature range<The lower limit of 3rd temperature range, the 1st aperture<2nd aperture<3rd aperture, also
It is to say, outdoor environment temperature is lower, and the aperture of magnetic valve 4 is lower.
In addition, if outdoor environment temperature is too high, in order to further preferably reduce system pressure, it can first start compression
The outer blower fan of machine restarts compressor after for a period of time.So in the case of i=1, i.e., in the outdoor environment temperature detected
In the case of the 1st temperature range, because now outdoor environment temperature is relatively low, compressor 1 and the outer blower fan of compressor can be same
Shi Qidong, in the case of i=2 and i=3, i.e., it is in the 2nd temperature range or the 3rd temperature in the outdoor environment temperature detected
In the case of scope, because now outdoor environment temperature is higher, it can first start compressor for a period of time (for example, can be 10
Second) restart compressor 1 afterwards.
On the other hand, because air conditioner is that the problem of electric current is excessive, system pressure is too high just easily occur in startup moment,
So above technical scheme can be used only in air conditioner start-up course, and air conditioner is also just asked after starting in the absence of this
Topic, thus also without progress off-load.So controller controls the aperture of magnetic valve 4 can according to the outdoor temperature detected
With including：Compressor 1 magnetic valve 4 run in the case of the i-th aperture (i.e. any opening degree) first time period T1 (for example,
Can be 30 seconds) after, the aperture of controller control magnetic valve 4 halves, and is to halve in the aperture of magnetic valve 4 in compressor 1
Aperture in the case of run second time period T2 (for example, can be 30 seconds) after, controller controls the aperture of magnetic valve 4 to be
0.That is, no matter in the start-up course of compressor 1, what kind of the aperture of magnetic valve 4 is, can be in the operation very first time
The aperture of magnetic valve 4 is halved after section T1, and ran for the second time in the case of being the aperture halved in the aperture of magnetic valve 4
After section T2, magnetic valve 4 is closed, i.e., aperture is 0.
1st temperature range described above can be less than or equal to 30 degree, and the 1st aperture can be that the maximum of magnetic valve 4 is opened
The 20% of degree；2nd temperature range can be more than 30 degree and less than 35 degree, and the 2nd aperture can be the maximum opening of magnetic valve 4
30%；3rd temperature range can be more than or equal to 35 degree, and the 3rd aperture can be the 40% of the maximum opening of magnetic valve 4.
Fig. 3 is the flow chart of air conditioner unloading control method provided by the invention, as shown in figure 3, this method includes：Detection
Outdoor environment temperature；And when air conditioner receives starting-up signal, electromagnetism is controlled according to the outdoor environment temperature detected
The aperture of valve.
It should be noted that the detail and benefit of air conditioner unloading control method provided by the invention carry with the present invention
The air conditioner unloading control system of confession is similar, and in this, it will not go into details.
More detailed elaboration is carried out to above technical scheme by a specific embodiment with reference to Fig. 4.Fig. 4 is this hair
The flow chart for the air conditioner unloading control method that bright embodiment provides.
As shown in figure 4, when air conditioner receives starting-up signal, electricity is controlled according to the outdoor environment temperature T4 detected
The aperture of magnet valve.Here, the step of detecting outdoor environment temperature can perform when receiving starting-up signal, can also be herein
Perform always before.
In the case of T4≤30 DEG C, the aperture for controlling magnetic valve 4 is the 20% of the maximum opening of magnetic valve 4, such case
Under, compressor 1 and the outer blower fan of compressor start simultaneously, and after compressor 1 is run 30 seconds, control the aperture of magnetic valve 4
Halve (i.e. the 10% of the maximum opening of magnetic valve 4), then after compressor 1 reruns 30 seconds, close magnetic valve 4, i.e. aperture
For 0.
In the case of 30 DEG C of 35 DEG C of ＜ T4 ＜, the aperture for controlling magnetic valve 4 is the 30% of the maximum opening of magnetic valve 4, this
In the case of kind, first start the outer blower fan of compressor, start compressor 1 after 10 seconds starting blower fan outside compressor, and compressing
After machine 1 is run 30 seconds, the aperture of control magnetic valve 4 halves (i.e. the 15% of the maximum opening of magnetic valve 4), then in compressor 1
After reruning 30 seconds, magnetic valve 4 is closed, i.e. aperture is 0.
In the case of T4 >=35 DEG C, the aperture for controlling magnetic valve is the 40% of magnetic valve maximum opening, in this case,
First start the outer blower fan of compressor, start compressor 1 after 10 seconds starting blower fan outside compressor, and 30 are run in compressor 1
After second, the aperture of control magnetic valve 4 halves (i.e. the 20% of the maximum opening of magnetic valve 4), is then reruned 30 seconds in compressor 1
Afterwards, magnetic valve 4 is closed, i.e. aperture is 0.
It will be appreciated by those skilled in the art that above design parameter should be set according to different refrigeration systems, from
And realize the most reliability service of system.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the present invention, a variety of letters can be carried out to technical scheme
Monotropic type, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (10)
1. a kind of air conditioner unloading control system, in the air conditioner, the magnetic valve taken over by magnetic valve compresses to control
Machine blast pipe leads to the gas flow of muffler, carries out unloading control to compressor to realize, it is characterised in that the system bag
Include：
Temperature sensor, for detecting outdoor environment temperature；And
Controller, for when the air conditioner receives starting-up signal, according to the outdoor environment temperature detected to control
The aperture of magnetic valve is stated,
Wherein, the controller controls the aperture of magnetic valve to include according to the outdoor environment temperature detected：
In the case where the outdoor environment temperature detected is in the i-th temperature range, the controller controls the magnetic valve to be
I-th aperture；
Wherein, i=1,2 ... ..., N, N are integer, and N >=2.
2. system according to claim 1, it is characterised in that N is equal to 3；
Wherein, the upper limit of the 1st temperature range<The lower limit of 2nd temperature range, the upper limit of the 2nd temperature range<3rd temperature range
Lower limit, the 1st aperture<2nd aperture<3rd aperture.
3. system according to claim 2, it is characterised in that
In the case of i=1, the outer blower fan of the compressor and compressor starts simultaneously；And
In the case of i=2 and i=3, blower fan restarts the compressor after starting a period of time outside the compressor.
4. system according to claim 3, it is characterised in that the controller controls according to the outdoor temperature detected
The aperture of magnetic valve includes：
In the compressor in the magnetic valve in the i-th aperture in the case of run first time period after, the controller control
The aperture of magnetic valve processed halves, and is run in the case where the compressor is the aperture halved in the aperture of the magnetic valve
After two periods, it is 0 that the controller, which controls the aperture of the magnetic valve,.
5. according to the system described in any one of claim 2 to 4 claim, it is characterised in that
1st temperature range is less than or equal to 30 degree, and the 1st aperture is the 20% of magnetic valve maximum opening；
2nd temperature range is more than 30 degree and less than 35 degree, and the 2nd aperture is the 30% of magnetic valve maximum opening；With
And
3rd temperature range is more than or equal to 35 degree, and the 3rd aperture is the 40% of magnetic valve maximum opening.
6. a kind of air conditioner unloading control method, in the air conditioner, the magnetic valve taken over by magnetic valve compresses to control
Machine blast pipe leads to the gas flow of muffler, carries out unloading control to compressor to realize, it is characterised in that this method bag
Include：
Detect outdoor environment temperature；And
When the air conditioner receives starting-up signal, opening for the magnetic valve is controlled according to the outdoor environment temperature detected
Degree,
It is described to control the aperture of magnetic valve to include according to the outdoor environment temperature detected：
In the case where the outdoor environment temperature detected is in the i-th temperature range, it is the i-th aperture to control the magnetic valve；
Wherein, i=1,2 ... ..., N, N are integer, and N >=2.
7. according to the method for claim 6, it is characterised in that N is equal to 3；
Wherein, the upper limit of the 1st temperature range<The lower limit of 2nd temperature range, the upper limit of the 2nd temperature range<3rd temperature range
Lower limit, the 1st aperture<2nd aperture<3rd aperture.
8. according to the method for claim 7, it is characterised in that
In the case of i=1, the outer blower fan of the compressor and compressor starts simultaneously；And
In the case of i=2 and i=3, blower fan restarts the compressor after starting a period of time outside the compressor.
9. according to the method for claim 8, it is characterised in that described that electricity is controlled according to the outdoor environment temperature detected
The aperture of magnet valve includes：
In the compressor in the magnetic valve in the i-th aperture in the case of run first time period after, control the electromagnetism
The aperture of valve halves, and runs for the second time in the case where the compressor is the aperture halved in the aperture of the magnetic valve
After section, the aperture for controlling the magnetic valve is 0.
10. according to the method described in any one of claim 7 to 9 claim, it is characterised in that
1st temperature range is less than or equal to 30 degree, and the 1st aperture is the 20% of magnetic valve maximum opening；
2nd temperature range is more than 30 degree and less than 35 degree, and the 2nd aperture is the 30% of magnetic valve maximum opening；With
And
3rd temperature range is more than or equal to 35 degree, and the 3rd aperture is the 40% of magnetic valve maximum opening.
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| CN201510217039.3A CN104791960B (en) | 2015-04-30 | 2015-04-30 | A kind of air conditioner unloading control system and method |
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| CN201510217039.3A CN104791960B (en) | 2015-04-30 | 2015-04-30 | A kind of air conditioner unloading control system and method |
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| CN104791960B true CN104791960B (en) | 2018-02-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106440443B (en) * | 2016-11-25 | 2022-04-12 | 广州华凌制冷设备有限公司 | Air conditioning system suitable for high-temperature refrigeration and control method |
| CN107490115B (en) * | 2017-08-29 | 2021-02-26 | 广东美的制冷设备有限公司 | Air conditioning system, multi-split air conditioner, control method thereof and storage medium |
| JP7319115B2 (en) * | 2019-07-09 | 2023-08-01 | シャープ株式会社 | air conditioner |
| CN110779161B (en) * | 2019-11-18 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Control method and device for compressor overload protection and air conditioner |
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|---|---|---|---|---|
| CN2767922Y (en) * | 2005-01-14 | 2006-03-29 | 海尔集团公司 | Air conditioner with unloading protector |
| CN101191686A (en) * | 2006-11-30 | 2008-06-04 | 海尔集团公司 | Air conditioner for implementing high and low pressure side pressure balancing |
| CN102563789A (en) * | 2012-02-01 | 2012-07-11 | 美的集团有限公司 | Multi-split heat pump air conditioning system and control method thereof |
| CN203310173U (en) * | 2013-05-15 | 2013-11-27 | 山东御嘉空调设备有限公司 | Air conditioning unit capable of balancing high pressure and low pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2882172B2 (en) * | 1992-03-24 | 1999-04-12 | 三菱電機株式会社 | Air conditioner |
| KR100680615B1 (en) * | 2005-08-26 | 2007-02-08 | 삼성전자주식회사 | An air conditioner and overload drive method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2767922Y (en) * | 2005-01-14 | 2006-03-29 | 海尔集团公司 | Air conditioner with unloading protector |
| CN101191686A (en) * | 2006-11-30 | 2008-06-04 | 海尔集团公司 | Air conditioner for implementing high and low pressure side pressure balancing |
| CN102563789A (en) * | 2012-02-01 | 2012-07-11 | 美的集团有限公司 | Multi-split heat pump air conditioning system and control method thereof |
| CN203310173U (en) * | 2013-05-15 | 2013-11-27 | 山东御嘉空调设备有限公司 | Air conditioning unit capable of balancing high pressure and low pressure |
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