CN101086375B - Method for controlling change-over valve of air conditioner - Google Patents
Method for controlling change-over valve of air conditioner Download PDFInfo
- Publication number
- CN101086375B CN101086375B CN2006100141490A CN200610014149A CN101086375B CN 101086375 B CN101086375 B CN 101086375B CN 2006100141490 A CN2006100141490 A CN 2006100141490A CN 200610014149 A CN200610014149 A CN 200610014149A CN 101086375 B CN101086375 B CN 101086375B
- Authority
- CN
- China
- Prior art keywords
- compressor
- time
- heat exchanger
- reversal valve
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a controlling method of reversing valve of air conditioner, which comprises the following steps: closing the reversing valve within set time when the air conditioner operates at heating pattern at starting time; flowing the liquid coolant in the outdoor heat exchanger into indoor heat exchanger to transfer into gas coolant after heat exchange; opening the reversing valve; making the gas coolant flow into the compressor. The invention eliminates the fail starting problem of the compressor at early stage, which improves the efficiency and using convenience.
Description
Technical field
The invention belongs to a kind of air-conditioner, when being specifically related to a kind of air-conditioner with the heating mode operation, in the early stage compressor start the time, postpone to drive reversal valve with setting-up time, make the liquid refrigerants that rests on outdoor heat exchanger flow into indoor heat exchanger and heat exchange becomes after the gaseous coolant, supply to the control method of the change-over valve of air conditioner of compressor.
Background technology
As shown in Figure 1, mode operation the time, the compressor and the reversal valve of air-conditioner turn round air-conditioner simultaneously with heating.At this moment, reversal valve is opened, thereby makes the liquid refrigerants that rests on outdoor heat exchanger and the gaseous coolant in the gaseous coolant flow to compressor.
Here, reversal valve plays the effect of switching heating and cooling pattern.In the time of the cooling pattern, reversal valve is closed.Opposite reversal valve is opened in heating mode, and switches the flow direction of refrigerant.
But the air-conditioner of prior art exists following problem: with heating mode operation the time, during compressor start, rest on the liquid refrigerants of outdoor heat exchanger in the early stage, do not carry out heat exchange and flow to compressor.
Summary of the invention
The present invention proposes in order to solve the problem that exists in the prior art, its objective is the control method that a kind of change-over valve of air conditioner is provided.Technical scheme of the present invention is: a kind of control method of change-over valve of air conditioner comprises following several stages: the stage of judging the beginning of warming operation; With heating during mode operation, compressor start the time,, close the stage of reversal valve in setting-up time in the early stage for the liquid refrigerants that makes outdoor heat exchanger can not flow to compressor; Through behind the setting-up time, reversal valve is opened, and the liquid refrigerants of outdoor heat exchanger flows behind indoor heat exchanger, carries out heat exchange and changes into gaseous coolant, flow to the stage of compressor then.
The control method of change-over valve of air conditioner of the present invention has following effect: during with the heating mode operation, in the early stage compressor start the time, in setting-up time, close reversal valve, make the liquid refrigerants that rests on outdoor heat exchanger flow into indoor heat exchanger, and carrying out heat exchange changes into after the gaseous coolant, open reversal valve, make gaseous coolant flow into compressor.Thereby can eliminate the startup failure problem of initial stage compressor, also have the user of raising and use the convenience of product and the effect of product.
Description of drawings
Fig. 1 is the oscillogram of the operating condition of the compressor of air-conditioner of prior art and reversal valve;
Fig. 2 is that the refrigerant of air-conditioner of the present invention flows and the schematic drawing of a part of structure;
Fig. 3 is the block diagram of a part of structure of air-conditioner of the present invention;
Fig. 4 is the oscillogram of the operating condition of the compressor of air-conditioner of the present invention and reversal valve;
Fig. 5 is the flow chart of control method of the reversal valve of air-conditioner of the present invention.
Wherein:
10 first compressors, 12 second compressors
14 outdoor heat exchanger, 16 electric expansion valves
18 indoor heat exchangers, 20 reservoirs
22 reversal valves, 30 driven compressor portions
35 timers, 40 reversal valve drive divisions
45 electric expansion valve drive divisions, 50 outdoor heat exchanger drive divisions
55 indoor heat exchanger drive divisions, 60 reservoir drive divisions
The specific embodiment
Below, be elaborated with reference to the control method of drawings and Examples to change-over valve of air conditioner of the present invention:
As shown in Figure 2, air-conditioner of the present invention comprises: when air-conditioner with heating mode operation the time, by play respectively compression, condensing, expand, first compressor 10 that evaporation refrigerant etc. acts on and second compressor 12, outdoor heat exchanger 14, electric expansion valve 16, indoor heat exchanger 18; Be arranged on the front end of first compressor 10 and second compressor 12, from the refrigerant that sucks, filter the reservoir 20 of liquid refrigerants; Be arranged on the rear end of first compressor 10 and second compressor 12, in heating or cooling, switch the reversal valve 22 of the flow direction of refrigerant.
When air-conditioner at cooling the time, outdoor heat exchanger 14 and indoor heat exchanger 18 play the effect of condenser and evaporimeter respectively.On the contrary, when air-conditioner in heating time, outdoor heat exchanger 14 and indoor heat exchanger 18 play the effect of evaporimeter and condenser respectively.
The capacity of first compressor 10 and second compressor 12 can be identical, also can be different.And, can optionally drive according to the load capacity in cooling and when heating.
When with the heating mode operation time, start at least one in first compressor 10 and second compressor 12 in the early stage.Afterwards, through behind the setting-up time, reversal valve 22 is opened, and refrigerant flow at least one in first compressor 10 and second compressor 12.
At this moment, before setting-up time, flow into indoor heat exchanger 18 in order to make the liquid refrigerants that rests on outdoor heat exchanger 14 by electric expansion valve 16, reversal valve 22 cuts out.In addition, through behind the setting-up time, reversal valve 22 is opened, and after the liquid refrigerants that flow into indoor heat exchanger 18 changes into gaseous coolant through heat exchange, flow into outdoor heat exchanger 14 by electric expansion valve 16.Afterwards, flow in first compressor and second compressor at least one by reservoir 20.
As shown in Figure 3, air-conditioner of the present invention mode operation the time, is to be made of following part with heating: in the early stage, start at least one the driven compressor portion 30 in first compressor 10 and second compressor 12; The initial start stage of at least one in first compressor 10 and second compressor 12, the timer 35 of review time; Through behind the setting-up time, open the reversal valve drive division 40 of reversal valve 22; Drive electric expansion valve 16, regulate the electric expansion valve drive division 45 of the flow of refrigerant; Outdoor heat exchanger drive division 50; Indoor heat exchanger drive division 55; Driving supplies at least one the reservoir drive division 60 of reservoir 20 in first compressor 10 and second compressor 12 with refrigerant; Time and the setting-up time checked of timer 35 relatively in setting-up time, is delivered to the control part 65 of reversal valve drive division 40 with the opening of reversal valve 22-closing control order.
At this moment, control part 65 makes the liquid refrigerants that rests on outdoor heat exchanger 14 flow into indoor heat exchanger 18 by outdoor heat exchanger drive division 50.Here, control part 65 is a benchmark with the setting opening value of electric expansion valve 16, by electric expansion valve drive division 45 control refrigerant pipe apertures.
In addition, control part 65 control indoor heat exchanger drive divisions 55 make the liquid refrigerants that flow into indoor heat exchanger 18 by electric expansion valve 16 carry out heat exchange, and change into gaseous coolant.
Here, the time that timer 35 is measured surpasses after the setting-up time, control part 65 sends control instruction, makes the refrigerant that changes into gaseous state at indoor heat exchanger 18 flow into outdoor heat exchanger 14 by electric expansion valve 16, and opens reversal valve 22 by control reversal valve drive division 40.
As shown in Figure 4, the following describes the compressor of air-conditioner of the present invention and the time interval of reversal valve:
At time interval T1, at least one in first compressor 10 and second compressor 12 and reversal valve shut down.
At time interval T2, at least one in first compressor 10 and second compressor 12 is with the heating mode operation.In the initial start stage of compressor, reversal valve cuts out in the setting-up time of time interval T2.
At time interval T3, compressor starts with the heating mode operation after, reversal valve 14 is opened.
The operation process of the present invention of Gou Chenging is as follows as mentioned above:
As shown in Figure 5, the control method of change-over valve of air conditioner of the present invention judges whether with heating mode operation (S100).
Here, control part 65 judges whether the user imports with the heating mode operation to air-conditioner.
In the time of with the heating mode operation, in the early stage after the compressor start, in order to drive the reversal valve review time (S105).
Then, the time and the setting-up time that go out of audit by comparison.Before the setting-up time process, reversal valve cuts out.After the setting-up time process, open reversal valve, gaseous coolant is supplied to compressor (S130).
Describe in detail, judge whether the time of checking out has surpassed setting-up time (S110).
The time of checking out is opened reversal valve when surpassing setting-up time, makes gaseous coolant flow into compressor (S115).
Setting-up time through after, carry out the refrigerant that heat exchange changes into gaseous state at indoor heat exchanger 18 and flow into reversal valve by outdoor heat exchanger 14.At this moment, open reversal valve 22, gaseous coolant flow in first compressor 10 and second compressor 12 at least one by reservoir 20.
The time of checking out closes reversal valve, thereby prevents that liquid refrigerants from flowing into compressor (S120) when not surpassing setting-up time.
The time of checking out, control part 65 made the liquid refrigerants that rests on outdoor heat exchanger 14 flow into indoor heat exchanger 18 when not surpassing setting-up time.At this moment, close reversal valve 22, prevent that liquid refrigerants from flowing at least one in first compressor 10 and second compressor 12.Here, the liquid refrigerants that flow into indoor heat exchanger 18 changes into gaseous coolant through heat exchange.
Above-mentioned setting-up time was generally 25～35 seconds.
The effect of invention: the control method of the change-over valve of air conditioner of the present invention that consists of as mentioned above has following effect: during with the heating mode operation, in the early stage compressor start the time, in setting-up time, close reversal valve, make the liquid refrigerants that rests on outdoor heat exchanger flow into indoor heat exchanger, and carrying out heat exchange changes into after the gaseous coolant, open reversal valve, make gaseous coolant flow into compressor. Thereby can eliminate the startup failure problem of initial stage compressor, also have and raise the efficiency and effect easy to use.
Claims (2)
1. the control method of a change-over valve of air conditioner is characterized in that: comprise with the next stage:
Judge the stage of the beginning of warming operation;
With heating during mode operation, compressor start the time,, close the stage of reversal valve in setting-up time in the early stage for the liquid refrigerants that makes outdoor heat exchanger can not flow to compressor;
Through behind the setting-up time, reversal valve is opened, and the liquid refrigerants of outdoor heat exchanger flows behind indoor heat exchanger, carries out heat exchange and changes into gaseous coolant, flow to the stage of compressor then;
Described setting-up time is 25～35 seconds.
2. the control method of change-over valve of air conditioner according to claim 1 is characterized in that: through behind the setting-up time, gaseous coolant flow to outdoor heat exchanger once more, after reversal valve is opened, flow to compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100141490A CN101086375B (en) | 2006-06-07 | 2006-06-07 | Method for controlling change-over valve of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100141490A CN101086375B (en) | 2006-06-07 | 2006-06-07 | Method for controlling change-over valve of air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101086375A CN101086375A (en) | 2007-12-12 |
| CN101086375B true CN101086375B (en) | 2010-10-27 |
Family
ID=38937468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100141490A Expired - Fee Related CN101086375B (en) | 2006-06-07 | 2006-06-07 | Method for controlling change-over valve of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101086375B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5413480B2 (en) * | 2012-04-09 | 2014-02-12 | ダイキン工業株式会社 | Air conditioner |
| CN104515335B (en) * | 2013-10-08 | 2017-09-26 | 翰昂汽车零部件有限公司 | Vehicle heat pump |
| CN105627507B (en) * | 2015-12-24 | 2019-01-04 | 珠海格力电器股份有限公司 | Control method and device of four-way valve |
| CN108592464B (en) * | 2018-04-26 | 2020-01-07 | 珠海格力电器股份有限公司 | Reversing control method and device of four-way valve, heat pump system and controller of heat pump system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557114A (en) * | 1983-06-15 | 1985-12-10 | Hitachi, Ltd. | Control circuit for air conditioner |
| CN2135087Y (en) * | 1992-07-02 | 1993-06-02 | 边云清 | Four-way reversing valve for hot-pump air-conditioner |
| US5442926A (en) * | 1993-03-29 | 1995-08-22 | Sanyo Electric Co., Ltd. | Control system for air-conditioner |
| CN1204029A (en) * | 1997-06-27 | 1999-01-06 | 三星电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| CN1232155A (en) * | 1998-04-15 | 1999-10-20 | 东芝株式会社 | Air conditioner |
| CN2442055Y (en) * | 2000-08-11 | 2001-08-08 | 浙江春晖集团公司 | Four-way electromagnetic change valve for direct current frequency conversion air conditioner |
| CN1527011A (en) * | 2002-11-22 | 2004-09-08 | Lg������ʽ���� | Method for controlling refrigerating and heating of thermal pump system |
| CN1614328A (en) * | 2003-11-07 | 2005-05-11 | 松下电器产业株式会社 | Air conditioner and its control |
-
2006
- 2006-06-07 CN CN2006100141490A patent/CN101086375B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557114A (en) * | 1983-06-15 | 1985-12-10 | Hitachi, Ltd. | Control circuit for air conditioner |
| CN2135087Y (en) * | 1992-07-02 | 1993-06-02 | 边云清 | Four-way reversing valve for hot-pump air-conditioner |
| US5442926A (en) * | 1993-03-29 | 1995-08-22 | Sanyo Electric Co., Ltd. | Control system for air-conditioner |
| CN1204029A (en) * | 1997-06-27 | 1999-01-06 | 三星电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| CN1232155A (en) * | 1998-04-15 | 1999-10-20 | 东芝株式会社 | Air conditioner |
| CN2442055Y (en) * | 2000-08-11 | 2001-08-08 | 浙江春晖集团公司 | Four-way electromagnetic change valve for direct current frequency conversion air conditioner |
| CN1527011A (en) * | 2002-11-22 | 2004-09-08 | Lg������ʽ���� | Method for controlling refrigerating and heating of thermal pump system |
| CN1614328A (en) * | 2003-11-07 | 2005-05-11 | 松下电器产业株式会社 | Air conditioner and its control |
Non-Patent Citations (1)
| Title |
|---|
| CN 1204029 A,全文. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101086375A (en) | 2007-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106705303B (en) | Defrosting control method, defrosting control system and air conditioner | |
| CN104879843B (en) | Air conditioner controlling device, multi-split air conditioner and air-conditioner control method | |
| CN100541033C (en) | Air conditioner outdoor machine defrosting operation controlling method | |
| CN106839286B (en) | Defrosting control method, defrosting control system and air conditioner | |
| CN201373637Y (en) | Heat pump type air conditioner with uninterrupted heating and defrosting | |
| CN106765617B (en) | Air injection enthalpy-increasing heat pump air conditioning system, control method, control device and air conditioner | |
| CN101086375B (en) | Method for controlling change-over valve of air conditioner | |
| CN109751713A (en) | The defrosting control method and storage medium of a kind of air conditioner, air conditioner | |
| CN202993410U (en) | Air conditioner outdoor unit with built-in auxiliary electric heater | |
| JP4039193B2 (en) | Control method of multi-room air conditioner | |
| CN1532482A (en) | Defrosting method for heat pump type air conditioner | |
| CN100541035C (en) | The outdoor machine defrosting device of air-conditioner and control method thereof | |
| CN101603701A (en) | A kind of air-conditioner and auxiliary heating method thereof with auxiliary heating combined equipment | |
| CN108413560A (en) | A kind of air conditioner indoor unit self-cleaning system and its control method | |
| KR100816450B1 (en) | Air conditioning method and system using brine heat exchanger | |
| CN102141281A (en) | Hot-start control method of air conditioner | |
| JP4434865B2 (en) | Regenerative air conditioner and method for operating the same | |
| JP2003028524A (en) | Multiroom type air conditioner | |
| CN2758672Y (en) | Air conditioner with auxiliary defrosting device | |
| KR20070088912A (en) | Reversing valve control method of air conditioning | |
| JPH0712437A (en) | Defrosting method in heat pump type air conditioner | |
| CN220793378U (en) | Air conditioner heating control system and air conditioner | |
| KR100757941B1 (en) | Air conditioner | |
| JP2001201217A (en) | Air conditioner | |
| CN113513825B (en) | Refrigeration system for optimizing defrosting process and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20140607 |
|
| EXPY | Termination of patent right or utility model |