CN1746580A - Air-conditioner - Google Patents
Air-conditioner Download PDFInfo
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- CN1746580A CN1746580A CN 200510099041 CN200510099041A CN1746580A CN 1746580 A CN1746580 A CN 1746580A CN 200510099041 CN200510099041 CN 200510099041 CN 200510099041 A CN200510099041 A CN 200510099041A CN 1746580 A CN1746580 A CN 1746580A
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- muffler
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- outdoor unit
- compressor
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Abstract
The invention provides an air conditioning which easily stores a double muffler member in an outdoor unit while further effectively suppressing a refrigerant sound resulted from pulsation of a compressor. This air conditioner is a multi type air conditioner including the compressor 3, the outdoor unit 1 having an outdoor heat exchanger 6 and a four-way valve 5, and a plurality of indoor units 2a-2c connected to the outdoor unit. The outdoor unit 1 includes a plurality of service valves 15a-15c connected with the indoor units 2a-2c, respectively. The double muffler member X formed in a U-turn shape by a first muffler 21, a second muffler 22 and a connecting pipe 23 connecting both the mufflers is provided in an internal refrigerant pipe 24 between these service valves and the four-way valve 5, and the plurality of service valves 15a-15c are connected to one muffler 21 of the double muffler member, respectively.
Description
Technical field
The present invention relates to by outdoor unit and the multi-model conditioner that a plurality of indoor units that are connected with this outdoor unit by auxiliary valve constitute, particularly can effectively suppress the conditioner of the refrigerant sound that the pulsation because of compressor causes with compressor, cross valve and outdoor heat exchanger etc.
Background technology
All know the multi-model conditioner now.In this conditioner, have an outdoor unit and Duo Tai indoor unit, a plurality of auxiliary valves of the side by being configured in above-mentioned outdoor unit connect from pipe arrangement (with reference to patent documentation 1) between the unit that each indoor unit extends.
[patent documentation 1] spy opens 2003-254563.
In multi-model conditioner shown in the above-mentioned patent documentation 1, at cross valve with connect in the inside coolant piping between a plurality of auxiliary valves of pipe arrangement between the unit of each indoor unit, a muffler is set, and it is used to reduce the refrigerant sound that the pulsation because of compressor causes.Fig. 6 is the figure of the relation of expression auxiliary valve of conventional example and muffler.The muffler 101 that noise reduction is used is installed in the middle of the inside coolant piping 100 that at one end is connected with cross valve.Be connected on top on the inside coolant piping 100 of above-below direction of this muffler 101, connect a plurality of auxiliary valve 102a～102c of pipe arrangement between the unit that is used to connect each indoor unit respectively.And these a plurality of auxiliary valve 102a～102c with the state of arranging at above-below direction, are disposed at the side in the outdoor unit.
, at the conditioner of above-mentioned existing structure, for the ability of each indoor unit and the ability of compressor, the capacity of above-mentioned muffler 101 (volume) is so not big, and therefore, the pulsation of the refrigerant that compressor is caused does not absorb fully.So, when the warming operation of conditioner, in the indoor unit in warming operation, the refrigerant sound that the pulsation of the refrigerant that is caused by compressor produces is covered by the operation sound of blowing fan, yet, indoor unit in running stops because blowing fan stops, not producing operation sound, is sent to indoor unit that refrigerant sound that the pulsation by compressor of indoor side heat exchanger causes might be from shut down to indoor leakage sound by pipe arrangement between the unit.
In order to address the above problem, in the occasion of the capacity that only increases muffler 101, it can not be housed in the space of existing outdoor unit, therefore produce the new problem that the outdoor unit body is maximized.
Summary of the invention
The present invention is a mirror with above-mentioned realistic problem, and purpose is can more effectively suppress because the refrigerant sound that the compressor pulsation causes simultaneously, can connect the noise reduction parts to two easily and accommodate in outdoor unit.
First of the present invention is, by having compressor, the conditioner of the outdoor unit of outdoor heat exchanger and cross valve and a plurality of indoor units formations that are connected in this outdoor unit, in this conditioner, above-mentioned outdoor unit has a plurality of auxiliary valves that connect each indoor unit respectively, establish two in the inside coolant piping between these a plurality of auxiliary valves and above-mentioned cross valve and connect the noise reduction parts, it constitutes the curved shape of U-shaped by first muffler and second muffler and the tube connector that is connected these two mufflers, two connects on the muffler of the side in noise reduction parts and connects above-mentioned a plurality of auxiliary valve respectively at this.
In addition, second of the present invention is, in first described conditioner, above-mentioned two connect the noise reduction parts structure be: first muffler and second muffler are parallel to each other, and above-mentioned tube connector is placed the below, vertically be arranged in the above-mentioned outdoor unit.
According to first of the present invention, above-mentioned outdoor unit has a plurality of auxiliary valves that connect each indoor unit respectively, in the inside coolant piping between these a plurality of auxiliary valves and above-mentioned cross valve, setting is by first muffler, second muffler constitutes two of the curved shape of U-shaped with the tube connector that is connected these two mufflers and connects the noise reduction parts, on this two side's muffler that connects in the noise reduction parts, connect above-mentioned a plurality of auxiliary valve respectively, therefore, in warming operation, the pulsation of the refrigerant that takes place from compressor, connecting the noise reduction parts by two absorbed with two stages, decay, therefore, can be not by pipe arrangement between the unit to the indoor unit transmission, the generation of the refrigerant sound of the indoor unit in warming operation is more effectively suppressed, and erasure effect is big.
In addition, two connect the noise reduction parts constitutes the curved shape of U-shaped by first muffler, second muffler and the tube connector that is connected these two mufflers, therefore, first muffler and second muffler are approaching with state parallel to each other, although increase the diameter and the total length of muffler, increase the total measurement (volume) of muffler, also can suppress all shapes and maximize, do not worry causing the maximization of outdoor unit.
According to second of the present invention, above-mentioned two structures that connect the noise reduction parts are: first muffler and second muffler are parallel to each other, and above-mentioned tube connector is placed the below, vertically are arranged in the above-mentioned outdoor unit.Therefore, in the refrigeration running, two company's noise reduction parts are worked as the reservoir that stores cooling medium liquid.
Description of drawings
Fig. 1 is the refrigerant loop diagram of conditioner integral body of the present invention;
Fig. 2 is the front elevation that the front face of the outdoor unit in the same air adjusting device is opened the major part of a part;
Fig. 3 is the local amplification view of same air adjusting device outdoor unit;
Fig. 4 is the partial cut-out front elevation of two company's muffler parts;
Fig. 5 is the figure of existing auxiliary valve of expression and muffler relation.
The specific embodiment
Aircondition of the present invention, by having compressor, the outdoor unit of outdoor heat exchanger and cross valve constitutes with a plurality of indoor units that are connected in this outdoor unit, in this conditioner, above-mentioned outdoor unit has a plurality of auxiliary valves that connect each indoor unit respectively, in the inside coolant piping between these a plurality of auxiliary valves and above-mentioned cross valve, setting is by first muffler, second muffler constitutes two of the curved shape of U-shaped with the tube connector that is connected these two mufflers and connects the noise reduction parts, connects above-mentioned a plurality of auxiliary valve respectively on this two side's muffler that connects in the noise reduction parts.Below, embodiments of the invention are described.
1-4 illustrates one embodiment of the invention with reference to the accompanying drawings below.At this, Fig. 1 is the refrigerant loop diagram of conditioner integral body of the present invention; Fig. 2 is the front elevation that the front face of outdoor unit is opened the major part of a part; Fig. 3 is the local amplification view of outdoor unit; Fig. 4 is the partial cut-out front elevation of two company's muffler parts.
In Fig. 1, conditioner A is made of with 3～4 (being 3 among the embodiment) indoor unit 2a that are connected in this outdoor unit 1～2c an outdoor unit 1.
Below, the refrigerant loop of the outdoor unit 1 among the conditioner A is described.The 3rd, by frequency modulation type compressor (the ability deformable compressor of frequency modulator regulating frequency, to call compressor in the following text), the 4th, be used to eliminate the muffler of the refrigerant sound that passes through, the 5th, switch the cross valve that refrigerant flows in refrigeration running and warming operation, the 6th, outdoor heat exchanger, the 7th, filter, the 8th, making the undergauge mechanism of cooling medium liquid decompression is electric expansion valve, the 9th, storage tank, the 10th, regulate first electric expansion valve to the coolant quantity of above-mentioned first indoor unit 2a supply, the 11st, regulate second electric expansion valve to the coolant quantity of above-mentioned second indoor unit 2b supply, the 12nd, regulate the 3rd electric expansion valve to the coolant quantity of above-mentioned the 3rd indoor unit 2c supply.
In addition, 13a～13c is the auxiliary valve that connects a side of pipe arrangement 14a～14c 3～4 (being 3 embodiment) between the unit of a side of extending from above-mentioned first～the 3rd indoor unit 2a～2c respectively, 15a～15c is the auxiliary valve that connects the opposite side of pipe arrangement 16a～16c 3～4 (being 3 embodiment) between the unit of the opposite side that extends from above-mentioned first～the 3rd indoor unit 2a～2c respectively, and this opposite side auxiliary valve 15a～15c is connected with a side the mufflers 21 of the two noise reduction parts X of company in the inside coolant piping 24 that is arranged between this auxiliary valve 15a～15c and the cross valve 5 respectively.
In addition, the 17th, main reservoir, the 18th, secondary reservoir, the 19th, as the electric switching valve of defrosting valve.The outside pressure fan of extraneous air is sent in 20 expressions to outdoor heat converter 6.
Refrigerant from above-mentioned compressor 3 discharges, the switching position of corresponding cross valve 5 and the switching of electric switching valve 19, according to a plurality of patterns of solid arrow (refrigeration running), dotted arrow (warming operation), solid line circle arrow (defrosting running), decision flow direction.
Promptly, when refrigeration is turned round, refrigerant from compressor 3 discharges, switching by cross valve 5, by muffler 4, cross valve 5, outdoor heat exchanger 6, filter 7, electric expansion valve 8, after the storage tank 9, respectively by first～the 3rd electric expansion valve 10～12, auxiliary valve 13a～the 13c of one side, pipe arrangement 14a～14c between the unit of one side, each indoor side heat exchanger of first～the 3rd indoor unit 2a～2c (not having diagram), pipe arrangement 16a～16c between the unit of opposite side, after the auxiliary valve 15a～15c of opposite side, flow through two successively and connect noise reduction parts X, cross valve 5.
And, pass back into above-mentioned compressor 3 from cross valve 5 by secondary reservoir 18 and main reservoir 17, like this, circulation refrigerant loop.At this moment, each indoor side heat exchanger of above-mentioned first～the 3rd indoor unit 2a～2c (not having diagram) is as evaporator operation.
When warming operation, the refrigerant of discharging from compressor 3 by muffler 4, cross valve 5 after, after auxiliary valve 13a～13c, first～the 3rd electric expansion valve 10～12 by pipe arrangement 14a～14c, a side between the unit of two each indoor side heat exchanger (not illustrating) that connect pipe arrangement 16a～16c, first～the 3rd indoor unit 2a～2c between the unit of noise reduction parts X, opposite side auxiliary valve 15a～15c, opposite side, a side, collaborate.The refrigerant at this interflow is pressed the sequential loop refrigerant loop of storage tank 9, electric expansion valve 8, outdoor heat converter 6, cross valve 5, secondary reservoir 18 and main reservoir 17, refluxes to compressor 3.At this moment, outdoor heat exchanger 6 is as evaporator operation.
When running defrosting (in the warming operation) electric switching valve 19 open, the part of the refrigerant of the high temperature of discharging from compressor 3 is used to make the temperature of outdoor heat exchanger 6 to rise by direct supply chamber outside heat exchangers 6.Thus, outdoor heat exchanger 6 temperature rise, and defrost.
Describe above-mentioned two in detail below with reference to Fig. 2-Fig. 4 and connect noise reduction parts X.As shown in Figure 4, above-mentioned two connect noise reduction parts X by first muffler 21, second muffler 22 and the curved shape of tube connector 23 formation U-shapeds, above-mentioned first muffler 21, it is cylindric, capacity with regulation in the obturation of top, forms connecting portion 21A in the bottom; Above-mentioned second muffler 22, it is cylindric, has the capacity of the regulation bigger than first muffler 21, and forms connecting portion 22A, 22B respectively at both ends up and down; Above-mentioned tube connector 23, it is bent to form to general U font, connects above-mentioned first muffler 21 and above-mentioned second muffler 22.The thickness utilization of this tube connector 23 be the tube connector of the common thickness used as inner cooling tube.
Above-mentioned first muffler 21 is set and is comprised that the total length T1 of connecting portion 21A is about 330～380mm, simultaneously, setting removes up and down that the internal diameter size S1 of the enlarged tube portion at both ends is about 35～45mm, and (at embodiment is 70～90mm) the auxiliary valve 15a～15c of above-mentioned opposite side to be installed respectively to separate desirable interval on this enlarged tube portion.
On the other hand, above-mentioned second muffler 22, setting comprises that the total length T2 of connecting portion 22A, 22B is about 350～400mm, simultaneously, the internal diameter size S2 that sets the enlarged tube portion at both ends about removing is about 45～55mm, at the connecting portion 22B of the upper end of this second muffler 22, the inside refrigerant pipe 24 that is connected to an interface of above-mentioned cross valve 5 with the other end is connected.
In addition, as shown in Figures 2 and 3, above-mentioned two connect noise reduction parts X is set to: first muffler 21 and second muffler 22 are parallel to each other, and, above-mentioned tube connector is positioned at the below, is vertically in the Machine Room 26 that the side in the housing 25 of above-mentioned outdoor unit 1 partly forms.
In the Machine Room 26 of above-mentioned outdoor unit 1, remove above-mentioned outside heat-exchanging chamber 6 and outside pressure fan 20, contain above-mentioned two and connect noise reduction parts X, compressor 3, cross valve 5, electric expansion valve 8, storage tank 9, first～the 3rd electric expansion valve 10～12, the auxiliary valve 13a～13c of a side, auxiliary valve 15a～15c, main reservoir 17 and the secondary reservoir 18 etc. of opposite side.
In addition, among Fig. 2 27 is the valve support plates that are used for respectively the auxiliary valve 15a～15c of fixing auxiliary valve 13a～13c that supports an above-mentioned side and opposite side, by removing the lid 28 that can be installed on removably on the shell 25, the auxiliary valve 13a～13c of an above-mentioned side and the auxiliary valve 15a～15c of opposite side expose outside the shell 25.
By above structure, when warming operation, discharge and the cooling fluid of HTHP by cross valve 5 flows through two and connects noise reduction parts X from compressor 3, the cooling fluid that flows through in the noise reduction parts X of this two company flows in second muffler 22, tube connector 23 and first muffler 21 and becomes the U-shaped bending, in two stages that cross over second muffler 22 and first muffler 21, after the pulsation of the refrigerant that absorption, decay are come out from compressor 3, flow by 21 shuntings of first muffler and to the auxiliary valve 15a～15c of opposite side.
At this, in above-mentioned warming operation, cooling medium liquid obviously flows in the indoor unit in the running in above-mentioned first～the 3rd indoor unit 2a～2c, yet, cooling medium liquid also takes place in the indoor unit in shutting down flows, although flow is few, therefore, present problem is: no operation sound in running stops, and from the indoor unit generation refrigerant sound that should not sound, to indoor leakage sound.
But, in the present invention, the curved shape of U type of first muffler 21 that the pulsation of the refrigerant that produces from compressor 3 connects second muffler 22 and the tube connector 23 the noise reduction parts X by two and the auxiliary valve 15a～15c of opposite side is installed, absorb, decay through two stages, therefore, the pulsation of the refrigerant that produces from compressor 3 can not transmitted to first～the 3rd indoor unit 2a～2c by pipe arrangement 16a～16c between the opposite side unit, refrigerant sound takes place at indoor unit in the time of can more effectively suppressing warming operation, eliminates the generation of refrigerant sound.
In addition, two connect noise reduction parts X owing to form the curved shape of U-shapeds by first muffler 21, second muffler 22 and the tube connector 23 that is connected these two mufflers 21,22, so first muffler 21 and second muffler 22 are near becoming the state that is parallel to each other, the diameter of each muffler and height dimension (total length) strengthen, although the total capacity of muffler strengthens, and can be compact conformation, can be housed in easily in the existing outdoor unit, outdoor unit is not maximized.
In addition, above-mentioned two connect noise reduction parts X is, form first muffler 21 and second muffler 22 is parallel to each other, and, above-mentioned tube connector 23 is placed the below, vertically be arranged at the structure in the Machine Room 26 of outdoor unit 1, therefore, in the refrigeration running, respectively by the auxiliary valve 15a～15c of pipe arrangement 16a～16c between the unit of opposite side and opposite side, flow into the refrigerant gas that two refrigerants that connect noise reduction parts X contain drop from first～the 3rd indoor unit 2a～2c, connect among the noise reduction parts X two, the drop of refrigerant is accumulated, the noise reduction parts X of this two company can work as the reservoir that stores cooling medium liquid, and, in addition, can increase the refrigerant storage volume, can extension unit between total piping length of pipe arrangement.
In addition, at the foregoing description, the occasion that 3 indoor units are set has been described, still, has been not limited to this, the present invention is also effective for the conditioner of the multi-model that uses 4 above indoor units.
Claims (2)
1. conditioner, it is by having compressor, the multi-model conditioner of the outdoor unit of outdoor heat exchanger and cross valve and a plurality of indoor units formations that are connected in this outdoor unit, it is characterized in that, above-mentioned outdoor unit has a plurality of auxiliary valves that connect each indoor unit respectively, in the inside coolant piping between these a plurality of auxiliary valves and above-mentioned cross valve, setting is by first muffler, second muffler constitutes two of the curved shape of U-shaped with the tube connector that is connected these two mufflers and connects the muffler parts, connects above-mentioned a plurality of auxiliary valve respectively on this two side's muffler that connects in the muffler parts.
2. conditioner as claimed in claim 1 is characterized in that, above-mentioned two structures that connect the muffler parts are: first muffler and second muffler are parallel to each other, and above-mentioned tube connector is placed the below, vertically are arranged in the above-mentioned outdoor unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004261805A JP4651334B2 (en) | 2004-09-09 | 2004-09-09 | Air conditioner |
| JP261805/04 | 2004-09-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1746580A true CN1746580A (en) | 2006-03-15 |
Family
ID=36157675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510099041 Pending CN1746580A (en) | 2004-09-09 | 2005-09-05 | Air-conditioner |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4651334B2 (en) |
| CN (1) | CN1746580A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003848B (en) * | 2006-08-30 | 2012-07-25 | 大金工业株式会社 | Refrigeration system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4931684B2 (en) * | 2007-04-25 | 2012-05-16 | 三菱電機株式会社 | Refrigeration cycle equipment |
| JP5091598B2 (en) * | 2007-09-12 | 2012-12-05 | 三洋電機株式会社 | Air conditioner outdoor unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05340647A (en) * | 1992-06-10 | 1993-12-21 | Daikin Ind Ltd | Air conditioner |
| JP3232852B2 (en) * | 1994-02-15 | 2001-11-26 | ダイキン工業株式会社 | Superheat control device for air conditioner |
| JPH09250844A (en) * | 1996-03-19 | 1997-09-22 | Fujitsu General Ltd | Freezing cycle |
| JP2003097865A (en) * | 2001-09-25 | 2003-04-03 | Daikin Ind Ltd | Air conditioner |
| JP3831697B2 (en) * | 2001-12-27 | 2006-10-11 | 三洋電機株式会社 | Air conditioner |
-
2004
- 2004-09-09 JP JP2004261805A patent/JP4651334B2/en not_active Expired - Fee Related
-
2005
- 2005-09-05 CN CN 200510099041 patent/CN1746580A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003848B (en) * | 2006-08-30 | 2012-07-25 | 大金工业株式会社 | Refrigeration system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4651334B2 (en) | 2011-03-16 |
| JP2006078073A (en) | 2006-03-23 |
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