CN102818317A - Air conditioner outdoor unit, air conditioner and method for controlling capacity output of air conditioner outdoor unit - Google Patents
Air conditioner outdoor unit, air conditioner and method for controlling capacity output of air conditioner outdoor unit Download PDFInfo
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- CN102818317A CN102818317A CN2012103091408A CN201210309140A CN102818317A CN 102818317 A CN102818317 A CN 102818317A CN 2012103091408 A CN2012103091408 A CN 2012103091408A CN 201210309140 A CN201210309140 A CN 201210309140A CN 102818317 A CN102818317 A CN 102818317A
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Abstract
The invention discloses an air conditioner outdoor unit, an air conditioner and a method for controlling capacity output of the air conditioner outdoor unit. The air conditioner outdoor unit comprises a compressor, a four-way valve, a condenser and a first throttle part which are sequentially connected, the air conditioner outdoor unit further comprises a refrigerant flow path used for controlling capacity output of the air conditioner outdoor unit, the refrigerant flow path is provided with an input end and two output ends, the input end of the refrigerant flow path is connected between the compressor and the four-way valve, and the two output ends of the refrigerant flow path are connected at two ends of the first throttle part respectively. The refrigerant flow path is added in an existing air conditioner outdoor unit system, the problems of frequent starting and stopping of a heat pump system and the like during low-load operation of low-temperature refrigeration and high-temperature heating can be well solved, and stable and reliable operation of the air conditioner outdoor unit in various extreme operating conditions is achieved.
Description
Technical field
The present invention relates to technical field of heat pumps, relate in particular to the method for a kind of air-conditioner outdoor unit, air-conditioner and the output of control air-conditioner outdoor unit ability.
Background technology
All there are problems such as ability output is bigger than normal, heat pump frequent start-stop in existing heat pump when cryogenic refrigeration and high temperature heat little load operation.At present, the fixed frequency air conditioner device does not have solution preferably, and for transducer air conditioning; Then be to solve the problems referred to above through reducing frequency, still, when frequency drops to minimum; When ability output was also bigger than normal, transducer air conditioning still can't solve the problem of above-mentioned heat pump frequent start-stop.
Summary of the invention
Main purpose of the present invention is to provide the method for a kind of air-conditioner outdoor unit, air-conditioner and the output of control air-conditioner outdoor unit ability; When being intended to solve cryogenic refrigeration and high temperature and heating little load operation; The problem of air conditioner heat pump system frequent start-stop, the job stability of raising air-conditioner.
In order to achieve the above object; The present invention proposes a kind of air-conditioner outdoor unit; Comprise successively the compressor, cross valve, condenser and the first throttle parts that connect, and one be used to control the ability output of said off-premises station refrigerant flow, said refrigerant flow has an input and two outputs; The input of said refrigerant flow is connected between said compressor and the cross valve, and two outputs of said refrigerant flow are connected to the two ends of said first throttle parts.
Preferably, said refrigerant flow comprises second throttle part, first magnetic valve and second magnetic valve, wherein:
One end of said second throttle part is connected between said compressor and the cross valve, and the other end is connected an end of said first throttle parts through said first magnetic valve;
One end of said second magnetic valve is connected between the other end and condenser of said first throttle parts; The other end of said second magnetic valve is connected between said first magnetic valve and second throttle part.
Preferably, this air-conditioner outdoor unit also comprises:
Checkout gear is used to detect the ability need value of air-conditioner;
Controller is used for controlling according to the testing result of said checkout gear the open and close of said second throttle part, first magnetic valve and second magnetic valve.
Preferably, said controling appliance body is used for:
Under refrigeration mode, the ability need value that detects air-conditioner when said checkout gear is opened said second throttle part and first magnetic valve during less than first setting value, closes second magnetic valve; And under heating mode, the ability need value that detects air-conditioner when said checkout gear is opened said second throttle part and second magnetic valve during less than second setting value, closes first magnetic valve.
Preferably, this air-conditioner outdoor unit also comprises: high-pressure stop valve and low-pressure shutoff valve, said high-pressure stop valve are connected between the end and indoor apparatus of air conditioner of said first throttle parts; Said low-pressure shutoff valve is connected between said cross valve and the indoor apparatus of air conditioner.
Preferably, this air-conditioner outdoor unit also comprises: gas-liquid separator, said gas-liquid separator is connected between said cross valve and the compressor.
The present invention also proposes a kind of air-conditioner, comprises air-conditioner outdoor unit, and said air-conditioner outdoor unit is aforesaid air-conditioner outdoor unit.
The present invention also proposes a kind of method of controlling the output of air-conditioner outdoor unit ability, may further comprise the steps:
Detect the ability need value of air-conditioner;
According to the refrigerant flow in the said ability need value control air-conditioner outdoor unit, the ability output valve of regulating air-conditioner outdoor unit.
Preferably, said air-conditioner is in refrigeration mode, and said according to refrigerant flow in the ability need value control air-conditioner outdoor unit, the step of regulating the ability output valve of air-conditioner outdoor unit comprises:
When said ability need value during less than first setting value, open second throttle part and first magnetic valve in the said refrigerant flow, make a part of refrigerant of compressor output get into indoor apparatus of air conditioner without condenser condenses.
Preferably, said air-conditioner is in heating mode, and said according to refrigerant flow in the ability need value control air-conditioner outdoor unit, the step of regulating the ability output valve of air-conditioner outdoor unit comprises:
When said ability need value during less than second setting value, open second throttle part and second magnetic valve in the said refrigerant flow, make a part of refrigerant of compressor output get back to the condenser in the air-conditioner outdoor unit without indoor apparatus of air conditioner.
The method of a kind of air-conditioner outdoor unit that the present invention proposes, air-conditioner and the output of control air-conditioner outdoor unit ability; In existing air-conditioner outdoor unit system, increase by a refrigerant flow; Problem such as air conditioner heat pump system frequent start-stop realizes the reliable and stable operation of air-conditioner outdoor unit under various extreme operating conditions in the time of can solving cryogenic refrigeration and high temperature preferably and heat little load operation.
Description of drawings
Fig. 1 is the structural representation of air-conditioner outdoor unit preferred embodiment of the present invention;
Fig. 2 is the schematic flow sheet that the present invention controls the method preferred embodiment of air-conditioner outdoor unit ability output.
In order to make technical scheme of the present invention clearer, clear, will combine accompanying drawing to do further to detail below.
The specific embodiment
The solution of the embodiment of the invention mainly is: in existing air-conditioner outdoor unit system, increase by a refrigerant flow; Cooperation through throttle part in the refrigerant flow and two magnetic valves; Ability output during the little load operation of control air-conditioning system realizes the reliable and stable operation of air-conditioner outdoor unit under various extreme operating conditions.
With reference to Fig. 1, Fig. 1 is the structural representation of air-conditioner outdoor unit preferred embodiment of the present invention.
As shown in Figure 1; A kind of air-conditioner outdoor unit that present embodiment proposes; Comprise that compressor 1, cross valve 2, condenser 3, first throttle parts 4, gas-liquid separator 10, high-pressure stop valve 5, low-pressure shutoff valve 6 and are used to control the refrigerant flow of the ability output of said off-premises station, wherein:
Said low-pressure shutoff valve 6 is connected between said cross valve 2 and the indoor apparatus of air conditioner; Said gas-liquid separator 10 is connected between said cross valve 2 and the compressor 1.
Said refrigerant flow has an input A and two output C, D, and the input A of said refrigerant flow is connected between said compressor 1 and the cross valve 2, the two ends that two output C of said refrigerant flow, D are connected to said first throttle parts 4.
Particularly, said refrigerant flow comprises second throttle part 9, first magnetic valve 8 and second magnetic valve 7, wherein:
One end of said second throttle part 9 is connected between said compressor 1 and the cross valve 2 as the input A of refrigerant flow; The other end is connected an end of said first throttle parts 4 through said first magnetic valve 8, and the link of first magnetic valve 8 and first throttle parts 4 is as an output D of this refrigerant flow;
One end of said second magnetic valve 7 is connected between the other end and condenser 3 of said first throttle parts 4 as another output C of refrigerant flow; The other end B of said second magnetic valve 7 is connected between said first magnetic valve 8 and second throttle part 9.
In the above-mentioned refrigerant flow structure, through the cooperation of first magnetic valve 8, second magnetic valve 7 and second throttle part 9, the ability output in the time of can controlling the little load operation of air-conditioning system.
The operation principle of the ability output of present embodiment during through the little load operation of refrigerant flow control air-conditioning system is following:
Between compressor 1 and cross valve 2, increase by a refrigerant flow; Through second throttle part 9; Be further divided into two-way is connected to first throttle parts 4 respectively through first magnetic valve 8 and second magnetic valve 7 front and back, form two branch roads, i.e. A-9-B-7-C and A-9-B-8-D.
Under air-conditioner is in refrigeration mode; When system detects the ability need value less than the first setting value Q1; Open second throttle part 9 and first magnetic valve 8; Let 3 condensations and directly get into indoor apparatus of air conditioner of a part of refrigerant of compressor 1 output,, reach the purpose that reduces the output of air-conditioning system ability to improve system's back pressure and wind pushing temperature from the A-9-B-8-D stream without condenser.
Under air-conditioner is in heating mode; When system detects the ability need value less than the second setting value Q2; Open second throttle part 9 and second magnetic valve 7; Let a part of refrigerant of compressor 1 output directly get back to the condenser 3 of air-conditioner outdoor unit,, reduce the purpose that the air-conditioning system ability is exported thereby reach to reduce system exhaust pressure and wind pushing temperature from the A-9-B-7-C stream without indoor apparatus of air conditioner.
Adopt the present embodiment such scheme, when the little load operation of air-conditioning system, can guarantee the refrigerant circulation and oil circulation of system, avoided the off-premises station frequent start-stop, make the more reliable and more stable operation of whole system.
Above-mentioned control operation process to refrigerant flow can also can be accomplished through the controller in the air-conditioner outdoor unit through manually accomplishing automatically.
In the implementation as automatic completion, can in air-conditioner system, be provided for detecting the checkout gear of the ability need value of air-conditioner, this checkout gear can or be integrated on this control panel for the control panel of air-conditioner.
Simultaneously, control in the refrigerant flow open and close of second throttle part 9, first magnetic valve 8 and second magnetic valve 7 according to the testing result of said checkout gear through the controller in the air-conditioner outdoor unit.
Particularly; Under refrigeration mode; The ability need value that detects air-conditioner when said checkout gear is during less than the first setting value Q1; Controller is opened said second throttle part 9 and first magnetic valve 8, closes second magnetic valve 7, makes a part of refrigerant of compressor 1 output get into indoor apparatus of air conditioner without condenser 3 condensations; Under heating mode; The ability need value that detects air-conditioner when said checkout gear is during less than the second setting value Q2; Controller is opened said second throttle part 9 and second magnetic valve 7; Close first magnetic valve 8, make a part of refrigerant of compressor 1 output get back to the condenser 3 in the air-conditioner outdoor unit without indoor apparatus of air conditioner.
Thus; Cooperation through first magnetic valve 8, second magnetic valve 7 and second throttle part 9; Ability output during the little load operation of control air-conditioning system operates in the safety zone compressor 1, the damage of avoiding the air-conditioner outdoor unit frequent start-stop that compressor 1 is brought; The components and parts of protection system, the stability of enhanced system and reliability.
Need to prove that the first throttle parts 4 and second throttle part 9 can comprise restricting elements such as electric expansion valve, capillary, throttling valve core in the present embodiment.
The flow-control of a part of refrigerant of separating from compressor 1 can be regulated setting according to actual needs.
The present embodiment air-conditioner outdoor unit goes in the various heat pumps, such as multi-compressor, all air conditioner heat pump systems or the single cooling system of grading that refuel.
In addition, the present invention also proposes a kind of air-conditioner, comprises air-conditioner outdoor unit, and said air-conditioner outdoor unit can adopt the air-conditioner outdoor unit in the foregoing description, and its design feature and the principle of work and power repeat no more at this please with reference to the foregoing description.
As shown in Figure 2, the present invention also proposes a kind of method of controlling the output of air-conditioner outdoor unit ability, implements based on the air-conditioner outdoor unit in the foregoing description, and this method comprises:
Step S101, the ability need value of detection air-conditioner;
Step S102 is according to the refrigerant flow in the said ability need value control air-conditioner outdoor unit, the ability output valve of regulating air-conditioner outdoor unit.
Present embodiment is on the basis of existing air-conditioner outdoor unit system; Between compressor and cross valve, increase by a refrigerant flow; Through second throttle part; Be further divided into two-way is connected to the first throttle parts respectively through first magnetic valve and second magnetic valve front and back, form two branch roads, i.e. A-9-B-7-C and A-9-B-8-D among Fig. 1.
Under air-conditioner is in refrigeration mode; When system detects the ability need value less than the first setting value Q1; Open second throttle part and first magnetic valve; Let a part of refrigerant of compressor output directly get into indoor apparatus of air conditioner, to improve system's back pressure and wind pushing temperature, to reach the purpose that reduces the output of air-conditioning system ability from the A-9-B-8-D stream without condenser condenses.
Under air-conditioner is in heating mode; When system detects the ability need value less than the second setting value Q2; Open second throttle part and second magnetic valve; Let a part of refrigerant of compressor output directly get back to the condenser of air-conditioner outdoor unit,, reduce the purpose that the air-conditioning system ability is exported thereby reach to reduce system exhaust pressure and wind pushing temperature from the A-9-B-7-C stream without indoor apparatus of air conditioner.
Thus; Cooperation through first magnetic valve, second magnetic valve and second throttle part; Ability output during the little load operation of control air-conditioning system makes compressor operating in the safety zone, the damage of avoiding the air-conditioner outdoor unit frequent start-stop that compressor is brought; The components and parts of protection system strengthen stability and reliability that outdoor machine of air-conditioner moves under various extreme operating conditions.
Need to prove that the present embodiment method goes in the various heat pumps, such as multi-compressor, all air conditioner heat pump systems or the single cooling system of grading that refuel.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical field, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. air-conditioner outdoor unit; Comprise the compressor, cross valve, condenser and the first throttle parts that connect successively; It is characterized in that comprise that also one is used to control the refrigerant flow of the ability output of said off-premises station, said refrigerant flow has an input and two outputs; The input of said refrigerant flow is connected between said compressor and the cross valve, and two outputs of said refrigerant flow are connected to the two ends of said first throttle parts.
2. air-conditioner outdoor unit according to claim 1 is characterized in that, said refrigerant flow comprises second throttle part, first magnetic valve and second magnetic valve, wherein:
One end of said second throttle part is connected between said compressor and the cross valve, and the other end is connected an end of said first throttle parts through said first magnetic valve;
One end of said second magnetic valve is connected between the other end and condenser of said first throttle parts; The other end of said second magnetic valve is connected between said first magnetic valve and second throttle part.
3. air-conditioner outdoor unit according to claim 2 is characterized in that, also comprises:
Checkout gear is used to detect the ability need value of air-conditioner;
Controller is used for controlling according to the testing result of said checkout gear the open and close of said second throttle part, first magnetic valve and second magnetic valve.
4. air-conditioner outdoor unit according to claim 3 is characterized in that, said controling appliance body is used for:
Under refrigeration mode, the ability need value that detects air-conditioner when said checkout gear is opened said second throttle part and first magnetic valve during less than first setting value, closes second magnetic valve; And under heating mode, the ability need value that detects air-conditioner when said checkout gear is opened said second throttle part and second magnetic valve during less than second setting value, closes first magnetic valve.
5. according to claim 2,3 or 4 described air-conditioner outdoor units, it is characterized in that, also comprise: high-pressure stop valve and low-pressure shutoff valve, said high-pressure stop valve are connected between the end and indoor apparatus of air conditioner of said first throttle parts; Said low-pressure shutoff valve is connected between said cross valve and the indoor apparatus of air conditioner.
6. air-conditioner outdoor unit according to claim 5 is characterized in that, also comprises: gas-liquid separator, said gas-liquid separator is connected between said cross valve and the compressor.
7. an air-conditioner comprises air-conditioner outdoor unit, it is characterized in that, said air-conditioner outdoor unit is each described air-conditioner outdoor unit among the claim 1-6.
8. a method of controlling the output of air-conditioner outdoor unit ability is characterized in that, may further comprise the steps:
Detect the ability need value of air-conditioner;
According to the refrigerant flow in the said ability need value control air-conditioner outdoor unit, the ability output valve of regulating air-conditioner outdoor unit.
9. method according to claim 8 is characterized in that said air-conditioner is in refrigeration mode, and said according to refrigerant flow in the ability need value control air-conditioner outdoor unit, the step of regulating the ability output valve of air-conditioner outdoor unit comprises:
When said ability need value during less than first setting value, open second throttle part and first magnetic valve in the said refrigerant flow, make a part of refrigerant of compressor output get into indoor apparatus of air conditioner without condenser condenses.
10. method according to claim 8 is characterized in that said air-conditioner is in heating mode, and said according to refrigerant flow in the ability need value control air-conditioner outdoor unit, the step of regulating the ability output valve of air-conditioner outdoor unit comprises:
When said ability need value during less than second setting value, open second throttle part and second magnetic valve in the said refrigerant flow, make a part of refrigerant of compressor output get back to the condenser in the air-conditioner outdoor unit without indoor apparatus of air conditioner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103091408A CN102818317A (en) | 2012-08-27 | 2012-08-27 | Air conditioner outdoor unit, air conditioner and method for controlling capacity output of air conditioner outdoor unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103091408A CN102818317A (en) | 2012-08-27 | 2012-08-27 | Air conditioner outdoor unit, air conditioner and method for controlling capacity output of air conditioner outdoor unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103388856A (en) * | 2013-07-18 | 2013-11-13 | 广东美的暖通设备有限公司 | Multi-split air conditioner system and quick-starting heat generation method |
| CN104236937A (en) * | 2013-06-08 | 2014-12-24 | 广东美的暖通设备有限公司 | Air-conditioner indoor-unit-free detection device and method |
| CN110260553A (en) * | 2019-06-10 | 2019-09-20 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750229Y (en) * | 2004-07-12 | 2006-01-04 | 劳特斯空调(江苏)有限公司 | Air-conditioning system self-adapting apparatus |
| CN101907371B (en) * | 2010-07-01 | 2011-12-14 | 大连三洋压缩机有限公司 | Air-condition freezing and refrigeration system device |
-
2012
- 2012-08-27 CN CN2012103091408A patent/CN102818317A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750229Y (en) * | 2004-07-12 | 2006-01-04 | 劳特斯空调(江苏)有限公司 | Air-conditioning system self-adapting apparatus |
| CN101907371B (en) * | 2010-07-01 | 2011-12-14 | 大连三洋压缩机有限公司 | Air-condition freezing and refrigeration system device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236937A (en) * | 2013-06-08 | 2014-12-24 | 广东美的暖通设备有限公司 | Air-conditioner indoor-unit-free detection device and method |
| CN103388856A (en) * | 2013-07-18 | 2013-11-13 | 广东美的暖通设备有限公司 | Multi-split air conditioner system and quick-starting heat generation method |
| CN103388856B (en) * | 2013-07-18 | 2015-09-30 | 广东美的暖通设备有限公司 | Multi-online air-conditioning system and start heating method fast |
| CN110260553A (en) * | 2019-06-10 | 2019-09-20 | 广东美的制冷设备有限公司 | The control method of air conditioner and air conditioner |
| CN110260553B (en) * | 2019-06-10 | 2021-12-21 | 广东美的制冷设备有限公司 | Air conditioner and control method thereof |
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Application publication date: 20121212 |