KR20160073897A - An air conditioner - Google Patents
An air conditioner Download PDFInfo
- Publication number
- KR20160073897A KR20160073897A KR1020150063718A KR20150063718A KR20160073897A KR 20160073897 A KR20160073897 A KR 20160073897A KR 1020150063718 A KR1020150063718 A KR 1020150063718A KR 20150063718 A KR20150063718 A KR 20150063718A KR 20160073897 A KR20160073897 A KR 20160073897A
- Authority
- KR
- South Korea
- Prior art keywords
- refrigerant
- pipe
- storage unit
- receiver
- storage
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
The present invention relates to an air conditioner.
The air conditioner is a device for keeping the air in a predetermined space in a most suitable condition according to the purpose of use and purpose. Generally, the air conditioner includes a compressor, a condenser, an expansion device, and an evaporator, and a refrigerant cycle for compressing, condensing, expanding, and evaporating the refrigerant is driven to cool or heat the predetermined space .
The predetermined space may be variously proposed depending on the place where the air conditioner is used. For example, when the air conditioner is installed in a home or an office, the predetermined space may be an indoor space of a house or a building. On the other hand, when the air conditioner is disposed in a car, the predetermined space may be a boarding space on which a person boarded.
On the other hand, the air conditioner can be operated so as to be switchable to the cooling mode or the heating mode. When the air conditioner is operated in the cooling mode, the outdoor heat exchanger functions as a condenser and the indoor heat exchanger functions as an evaporator. On the other hand, when the air conditioner operates in the heating mode, the outdoor heat exchanger functions as an evaporator and the indoor heat exchanger functions as a condenser. The air conditioner may be provided with a flow control valve for controlling the flow direction of the refrigerant so that the cooling operation or the heating operation can be switched.
The air conditioner includes a gas-liquid separator disposed at an inlet side of the compressor for separating the gaseous refrigerant from the refrigerant passing through the evaporator and allowing the gaseous refrigerant to flow into the compressor. The air conditioner further includes a receiver for storing at least a part of the refrigerant in the condensed refrigerant.
The gas-liquid separator and the receiver may be integrally provided. The present applicant has filed the following application on the integral structure of such a gas-liquid separator and a receiver.
[Prior Application]
1. Application number (filing date): 10-2012-0077520 (July 17, 2012)
2. Name of invention: air conditioner
According to the conventional application, there is a problem that the receiver is positioned below the gas-liquid separator and the supply of the refrigerant from the receiver to the gas-liquid separator is not smooth.
Also, since the refrigerant passing through the supercooling heat exchanger is supplied to the gas-liquid separation inlet pipe having a relatively small volume, there is a problem that noise due to the flow of the refrigerant may be generated.
It is an object of the present invention to provide an air conditioner capable of smoothly supplying refrigerant from a receiver to a gas-liquid separator and reducing noise generation.
An air conditioner according to an embodiment of the present invention includes: a compressor for compressing a refrigerant; A condenser for condensing the refrigerant compressed in the compressor; An expansion device for reducing the pressure of the refrigerant condensed in the condenser; An evaporator for evaporating the refrigerant decompressed in the expansion device; And a refrigerant storage device for bypassing and storing at least a part of the refrigerant condensed in the condenser, wherein the refrigerant storage device includes: a first storage part for storing the bypassed refrigerant; And a second storage section for introducing the refrigerant having passed through the evaporator and discharging the gaseous refrigerant out of the introduced refrigerant to the compressor, wherein the first storage section is disposed on the upper side of the second storage section, And a refrigerant can be supplied to the second storage unit.
The apparatus further includes a receiver outlet pipe extending from the first reservoir to the second reservoir and guiding the refrigerant in the first reservoir to flow to the second reservoir by a natural gradient.
A liquid discharge port provided in the first reservoir and connected to one side of the receiver outlet pipe; And a liquid inlet port provided in the second reservoir and coupled to the other side of the receiver outlet pipe.
The liquid discharge port may be disposed at a lower portion of the first storage portion, and the liquid inlet port may be disposed at an upper portion of the second storage portion.
Further, a receiver outlet valve installed in the receiver outlet pipe and capable of adjusting the amount of refrigerant discharged from the first reservoir may be further included.
A case forming the first storage unit and the second storage unit; And a partition plate that is disposed inside the case and that divides the first storage unit and the second storage unit.
In addition, the case may include a first case defining the first storage unit and a second case defining the second storage unit, and the first and second cases may be integrally formed.
A suction pipe installed inside the second case and guiding the refrigerant in the second storage part to the compressor; And a lower cover provided at a lower portion of the case and having an outlet port to which the suction pipe is connected.
The suction pipe may include a first pipe portion located inside the second case and extending upward toward the partition plate; And a second pipe portion located outside the second case and extending upwardly from the lower cover.
The first pipe portion is formed with an inflow end portion located above the second storage portion and through which the refrigerant existing in the second storage portion flows.
Further, the inflow end portion may be inclined at a predetermined angle &thetas; with respect to the lower cover.
The receiver outlet pipe may include an outer pipe portion disposed outside the second storage portion and an inner pipe portion extending from the outer pipe portion and disposed inside the second storage portion, As shown in Fig.
A first subcooler for supercooling the refrigerant condensed in the condenser; A receiver inlet pipe for guiding the refrigerant passed through the first subcooler to the first storage unit; And a receiver inlet valve installed in the receiver inlet pipe.
An oil discharge port formed in the lower cover for discharging the refrigerant stored in the second storage part; An oil return pipe extending from the oil discharge port to the suction pipe; And an oil valve installed in the oil return pipe for regulating an oil flow rate.
An air conditioner according to another aspect includes: a compressor for compressing refrigerant; A condenser for condensing the refrigerant compressed in the compressor; A first subcooler for supercooling the refrigerant condensed in the condenser; A second subcooler disposed at an outlet side of the first subcooler; A receiver having a connection port through which at least a part of the refrigerant passing through the first subcooler is introduced; A gas-liquid separator into which at least a part of the refrigerant passing through the second subcooler is introduced; And a receiver outlet pipe extending downward from the receiver toward the gas-liquid separator and guiding the liquid refrigerant in the receiver to be introduced into the gas-liquid separator.
In addition, a receiver outlet valve installed in the receiver outlet pipe is further included.
The receiver and the gas-liquid separator are integrally formed, and are separated upward and downward by a partition plate.
According to the present invention, the first storage unit for storing the refrigerant passed through the condenser and the second storage unit for storing the refrigerant to be introduced into the compressor are integrally formed in one case, so that the structure of the air conditioner can be simplified .
Since the first storing part is located above the second storing part, the liquid refrigerant stored in the first storing part can be introduced into the second storing part by gravity, so that the refrigerant supply to the second storing part smoothly .
Further, since the refrigerant having passed through the supercooling device can be directly supplied to the refrigerant storage device via the bypass pipe, the generation of noise due to the refrigerant flow can be reduced. For example, the generation of refrigerant noise can be reduced as compared with a case where refrigerant having passed through the supercooling device is supplied to the low-pressure pipe.
In addition, since the heat transfer can be performed through the partition plate partitioning the first storage unit and the second storage unit, the gaseous refrigerant stored in the first storage unit can be changed into a liquid phase. As a result, the liquid refrigerant can be stored in the first storage portion, and the liquid refrigerant can be introduced into the second storage portion, thereby increasing the amount of refrigerant circulating through the system.
Further, since the performance of the refrigerant system for compensating the indoor air conditioning load can be varied only by the change in the amount of the refrigerant in the refrigerant cycle without changing the operation rate of the compressor, the advantage that the overall operation efficiency of the refrigerant system step can be improved .
1 is a system diagram showing a configuration of an air conditioner according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a part of the system configuration of Fig. 1. Fig.
3 is a view illustrating a configuration of a refrigerant storage device according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a configuration of a refrigerant storage device according to an embodiment of the present invention.
5 is a cross-sectional view taken along line V-V 'of FIG.
Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals whenever possible, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.
In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;
FIG. 1 is a system diagram showing the configuration of an air conditioner according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a part of the system configuration of FIG.
Referring to FIG. 1, an
The outdoor unit 100 includes a plurality of
The plurality of
Depending on the capabilities of the system, the
At the outlet side of the first compressor (110) and the second compressor (112), a discharge pipe (111) extends. The
The
The outdoor unit 100 includes an oil
The
The outdoor unit 100 further includes a
A
The outdoor unit 100 further includes a
The outdoor unit (100) further includes a flow switching unit (130, 135) for switching the flow direction of the refrigerant. The
The first and second
When the air conditioner performs the cooling operation, the refrigerant flows from the first
On the other hand, when the air conditioner performs the heating operation, the refrigerant flows from the second
The outdoor heat exchanger (140) includes a plurality of heat exchangers (141, 142) and an outdoor fan (143). The plurality of
The outdoor unit 100 is provided with a first heat exchange
The
The outdoor heat exchanger (140) is provided with a variable valve (145) provided on the variable flow path (144) to selectively block the flow of the refrigerant. Depending on whether the
More specifically, when the
The second
On the other hand, when the
Here, the first
The
The first and
A heat exchange part bypass pipe for bypassing the second
On the outlet side of the outdoor heat exchanger (140), the first and second subcoolers (150, 170) are disposed. The first and second subcoolers 150 and 170 include a
When the air conditioner operates in the cooling mode, the refrigerant condensed in the
The
The outdoor unit 100 includes a first
The first supercooling flow path (151) is provided with a first supercooling expansion device (153) for reducing the pressure of the second refrigerant. The first
The first subcooling flow path (151) is provided with a plurality of temperature sensors (154, 155). The plurality of
During the heat exchange of the first refrigerant and the second refrigerant in the first
The "first superheat degree" of the second refrigerant can be recognized based on the temperature values of the refrigerant sensed by the
The second refrigerant heat-exchanged in the
In detail, the
A part of the refrigerant in the first
At this time, the refrigerant injected into the first and
On the outlet side of the first subcooler (150), a first branched portion (158) is provided. The first refrigerant passed through the
The second subcooler (170) is disposed at the outlet side of the electric field cooling unit (159). The
The first refrigerant heat-exchanged in the
The
The outdoor unit (100) includes a second supercooling oil passage (171) through which the second refrigerant is branched. The
In the
During the heat exchange of the first refrigerant and the second refrigerant in the
The "second superheat degree" of the second refrigerant can be recognized based on the temperature values of the refrigerant sensed by the
The second refrigerant heat-exchanged in the
In detail, the
The second injection channel 176 includes a
The third and fourth branched
A part of the refrigerant of the
Another part of the refrigerant branched from the
Referring to FIG. 2, the
The
The
The
The
The
The
The outdoor unit 100 further includes a
The
The
The outdoor unit 100 further includes a
The
For example, the
The
The refrigerant stored in the
The
The
The
The
The
The
Meanwhile, the first refrigerant passing through the
4 is a cross-sectional view illustrating a configuration of a refrigerant storage device according to an embodiment of the present invention. FIG. 5 is a cross-sectional view of the refrigerant storage device taken along line VV ' Fig.
3 to 5, a
The
The
The
The
Since the
The
The
The
The
The
The
The
The
The
On the other hand, the refrigerant flowing through the low-
Therefore, the refrigerant stored in the
During the cooling of the refrigerant in the
The
The refrigerant flow in the air conditioner 100 according to the present embodiment will be briefly described.
The refrigerant compressed in the
At least a part of the refrigerant heat-exchanged in the
The refrigerant evaporated in the
The liquid refrigerant stored in the
On the other hand, the refrigerant stored in the
10:
125: high-
140: outdoor heat exchanger 150: first subcooler
151: first injection channel 153: first injection expansion device
163: Receiver inlet piping 169: Suction piping
170: second supercooler 171: supercooling flow path
173: supercooling expansion device 184: low pressure piping
190: Oil return pipe 200: Refrigerant storage device
201: first storage unit 205: second storage unit
210:
210b: second case 211: inlet port
212: supercooling port 215: outlet port
218: Oil discharge port 220:
251: connection port 260: receiver outlet piping
261: liquid discharge port 262: liquid discharge port
Claims (17)
A condenser for condensing the refrigerant compressed in the compressor;
An expansion device for reducing the pressure of the refrigerant condensed in the condenser;
An evaporator for evaporating the refrigerant decompressed in the expansion device; And
And a refrigerant storage device for bypassing and storing at least a portion of the refrigerant condensed in the condenser,
In the refrigerant storage device,
A first storage unit for storing the bypassed refrigerant; And
And a second storage portion for discharging the gaseous refrigerant of the introduced refrigerant into the compressor,
Wherein the first storage unit is disposed above the second storage unit, and the refrigerant in the first storage unit can be supplied to the second storage unit.
Further comprising a receiver outlet pipe extending from the first storage portion toward the second storage portion and guiding the refrigerant in the first storage portion to flow to the second storage portion by a natural gradient.
A liquid discharge port provided in the first reservoir and connected to one side of the receiver outlet pipe; And
Further comprising a liquid inlet port provided in the second storage unit and coupled to the other side of the receiver outlet pipe.
Wherein the liquid discharge port is disposed at a lower portion of the first storage portion, and the liquid inlet port is disposed at an upper portion of the second storage portion.
Further comprising a receiver outlet valve installed at the receiver outlet pipe for controlling the amount of refrigerant discharged from the first storage unit.
A case forming the first storage unit and the second storage unit; And
Further comprising a partition plate that is disposed inside the case and that divides the first storage unit and the second storage unit.
In the case,
A first case defining the first storage unit and a second case defining the second storage unit,
Wherein the first and second cases are integrally formed.
A suction pipe installed inside the second case and guiding the refrigerant in the second storage part to the compressor; And
And a lower cover provided at a lower portion of the case and having an outlet port to which the suction pipe is connected.
In the suction pipe,
A first pipe portion located inside the second case and extending upward toward the partition plate; And
And a second piping portion located outside the second case and extending upwardly from the lower cover.
In the first piping portion,
Wherein an inlet end portion of the second storage portion that is located above the second storage portion and into which the refrigerant existing in the second storage portion flows is formed.
Wherein the inflow end portion extends obliquely with respect to the lower cover at a set angle [theta].
The receiver outlet pipe includes an outer pipe portion disposed outside the second storage portion and an inner pipe portion extending from the outer pipe portion and disposed inside the second storage portion,
Wherein the inner pipe portion is bent in a direction away from the suction pipe.
A first subcooler for supercooling the refrigerant condensed in the condenser;
A receiver inlet pipe for guiding the refrigerant passed through the first subcooler to the first storage unit; And
Further comprising a receiver inlet valve installed in the receiver inlet pipe.
An oil discharge port formed in the lower cover for discharging the refrigerant stored in the second storage part;
An oil return pipe extending from the oil discharge port to the suction pipe; And
And an oil valve installed in the oil return pipe to adjust an oil flow rate.
A condenser for condensing the refrigerant compressed in the compressor;
A first subcooler for supercooling the refrigerant condensed in the condenser;
A second subcooler disposed at an outlet side of the first subcooler;
A receiver having a connection port through which at least a part of the refrigerant passing through the first subcooler is introduced;
A gas-liquid separator into which at least a part of the refrigerant passing through the second subcooler is introduced; And
And a receiver outlet pipe extending downward from the receiver toward the gas-liquid separator and guiding the liquid refrigerant in the receiver to be introduced into the gas-liquid separator.
Further comprising a receiver outlet valve installed in the receiver outlet pipe.
Wherein the receiver and the gas-liquid separator are integrally formed, and are separated upward and downward by the partition plate.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510514654.0A CN105716307B (en) | 2014-12-17 | 2015-08-20 | Air regulator |
US14/935,089 US10041705B2 (en) | 2014-12-17 | 2015-11-06 | Outdoor device for an air conditioner |
EP15195631.5A EP3034962B1 (en) | 2014-12-17 | 2015-11-20 | Air conditioner |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140182091 | 2014-12-17 | ||
KR20140182091 | 2014-12-17 |
Publications (2)
Publication Number | Publication Date |
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KR20160073897A true KR20160073897A (en) | 2016-06-27 |
KR101695543B1 KR101695543B1 (en) | 2017-01-11 |
Family
ID=56344507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150063718A KR101695543B1 (en) | 2014-12-17 | 2015-05-07 | An air conditioner |
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KR (1) | KR101695543B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180045193A (en) * | 2016-10-25 | 2018-05-04 | 엘지전자 주식회사 | Receiver united type accumulator |
KR20190091093A (en) * | 2018-01-26 | 2019-08-05 | 엘지전자 주식회사 | An air conditioner |
CN112856864A (en) * | 2021-01-16 | 2021-05-28 | 北海职业学院 | Refrigerant purification system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002295927A (en) * | 2001-03-29 | 2002-10-09 | Mitsubishi Electric Corp | Accumureceiver, refrigeration system and method for manufacturing accumureceiver |
KR20100061184A (en) * | 2008-11-28 | 2010-06-07 | 엘지전자 주식회사 | Refrigeration cycle |
KR20130124256A (en) * | 2013-10-15 | 2013-11-13 | 엘지전자 주식회사 | An air conditioner and a control method for the same |
KR20140018524A (en) * | 2012-08-02 | 2014-02-13 | 엘지전자 주식회사 | An air conditioner |
-
2015
- 2015-05-07 KR KR1020150063718A patent/KR101695543B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002295927A (en) * | 2001-03-29 | 2002-10-09 | Mitsubishi Electric Corp | Accumureceiver, refrigeration system and method for manufacturing accumureceiver |
KR20100061184A (en) * | 2008-11-28 | 2010-06-07 | 엘지전자 주식회사 | Refrigeration cycle |
KR20140018524A (en) * | 2012-08-02 | 2014-02-13 | 엘지전자 주식회사 | An air conditioner |
KR20130124256A (en) * | 2013-10-15 | 2013-11-13 | 엘지전자 주식회사 | An air conditioner and a control method for the same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180045193A (en) * | 2016-10-25 | 2018-05-04 | 엘지전자 주식회사 | Receiver united type accumulator |
KR20190091093A (en) * | 2018-01-26 | 2019-08-05 | 엘지전자 주식회사 | An air conditioner |
CN112856864A (en) * | 2021-01-16 | 2021-05-28 | 北海职业学院 | Refrigerant purification system |
CN112856864B (en) * | 2021-01-16 | 2023-07-21 | 北海职业学院 | Refrigerant purifying system |
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