CN203837343U - Air-conditioning system and air conditioner external unit thereof - Google Patents
Air-conditioning system and air conditioner external unit thereof Download PDFInfo
- Publication number
- CN203837343U CN203837343U CN201420208533.4U CN201420208533U CN203837343U CN 203837343 U CN203837343 U CN 203837343U CN 201420208533 U CN201420208533 U CN 201420208533U CN 203837343 U CN203837343 U CN 203837343U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- cold heat
- path
- switch valve
- throttle part
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses an air conditioner external unit which comprises a liquid storage pot, an external heat exchanger assembly, a supercooling heat exchanger and a depressurization reversing pipeline, wherein the supercooling heat exchanger comprises a first channel and a second channel, a branch throttling component and a reversing element are arranged in the depressurization reversing pipeline, the external heat exchanger assembly, the supercooling heat exchanger and a second refrigerant inlet and outlet end form a main stream circulating path for refrigerants to circulate, the depressurization reversing pipeline is connected with the first channel of the supercooling heat exchanger, the second channel of the supercooling heat exchanger and an inlet of the liquid storage pot, the reversing element controls part of refrigerants flowing through the main stream circulating path to flow into the second channel of the supercooling heat exchanger through the branch throttling component, and the refrigerants in the second channel and the refrigerants in the first channel flow in the reversed direction and then flow back to the inlet of the liquid storage pot. The utility model further discloses an air-conditioning system provided with the air conditioner external unit. The air conditioner external unit is high in refrigerating capacity and heating capacity, and the energy efficiency of the system is high.
Description
Technical field
The utility model relates to air-conditioning technical field, relates in particular to air-conditioning system and air-conditioner outdoor unit thereof.
Background technology
In existing air-conditioning, conventionally can set up cold heat exchanger, high pressure refrigerant and low pressure refrigerant are crossed cold heat exchanger through this simultaneously, thereby make high pressure refrigerant have higher degree of supercooling.But existing scheme can not farthest be brought into play the exchange capability of heat of cold heat exchanger, the refrigerating capacity of air-conditioning system and heating capacity system energy efficiency are not high enough.
Foregoing is only understood the technical solution of the utility model for auxiliary, does not represent and admits that foregoing is prior art.
Utility model content
Main purpose of the present utility model is to provide a kind of air-conditioner outdoor unit, is intended to reach refrigerating capacity and the higher object of heating capacity system energy efficiency.
For achieving the above object, the air-conditioner outdoor unit that the utility model provides, comprise compressor, fluid reservoir, outdoor heat exchanger assembly, cross valve, and the first refrigerant in-out end and the second refrigerant in-out end for being connected with indoor apparatus of air conditioner, the outlet of described compressor, the first end of described outdoor heat exchanger assembly, the entrance of described fluid reservoir and the first refrigerant in-out end are connected with the corresponding interface of described cross valve respectively by pipeline, described air-conditioner outdoor unit also comprised cold heat exchanger and step-down reversing pipeline, the described cold heat exchanger of crossing comprises the first path and alternate path, described the first path comprises first end and the second end, described alternate path comprises first end and the second end, in described step-down reversing pipeline, be provided with branch road throttle part and commutation element,
The second end of described outdoor heat exchanger assembly connected the first end of the first path of cold heat exchanger, and described the second refrigerant in-out end connected the second end of the first path of cold heat exchanger, to form the master stream circulation path for refrigerant circulation;
Described step-down reversing pipeline is with the first path, the mistake alternate path of cold heat exchanger and the entrance of fluid reservoir of cold heat exchanger are connected excessively; Described branch road throttle part is between described master stream circulation path and the alternate path of described cold heat exchanger excessively, the part refrigerant that described commutation element is controlled the described master stream circulation path of flowing through flows into the described alternate path of crossing cold heat exchanger through described branch road throttle part and along the contrary direction of the refrigerant flow direction with described the first path of crossing cold heat exchanger, then is back to the entrance of described fluid reservoir.
Preferably, one end of described branch road throttle part is connected with the described first end of crossing the first path of cold heat exchanger, described commutation element comprises the first triple valve and the second triple valve, two triple valves first end separately is all connected with the first end of crossing the alternate path of cold heat exchanger, and two triple valves the second end separately is all connected with the second end of the alternate path of mistake cold heat exchanger; The 3rd end of the first triple valve is connected with the other end of described branch road throttle part, and the 3rd end of the second triple valve is connected with the entrance of fluid reservoir.
Preferably, when refrigerating state, described the first triple valve conducting its 3rd end and second end, second its first end of triple valve conducting and the 3rd end; When heating state, described the first triple valve conducting its 3rd end and first end, its second end of the second triple valve conducting and the 3rd end; So that being mutual reverse shape, the first path of described cold heat exchanger excessively and the refrigerant in alternate path flow.
Preferably, one end of described branch road throttle part is connected with the described first end of crossing the first path of cold heat exchanger, and described commutation element comprises the first switch valve, second switch valve, the 3rd switch valve and the 4th switch valve; The described alternate path first end of crossing cold heat exchanger connects the other end of branch road throttle part through the first switch valve, the described alternate path first end of crossing cold heat exchanger connects the entrance of fluid reservoir through second switch valve; Described alternate path the second end of crossing cold heat exchanger connects the other end of branch road throttle part through the 3rd switch valve, described alternate path the second end of crossing cold heat exchanger connects the entrance of fluid reservoir through the 4th switch valve; .
Preferably, when refrigerating state, the 3rd switch valve and second switch valve are opened, and the first switch valve and the 4th switch valve are closed; When heating state, the 3rd switch valve and second switch valve are closed, and the first switch valve and the 4th switch valve are opened; So that being mutual reverse shape, the first path of described cold heat exchanger excessively and the refrigerant in alternate path flow.
Preferably, the quantity of described branch road throttle part is two, is respectively the first branch road throttle part and the second branch road throttle part, and described commutation element comprises the first switch valve and second switch valve; The described first end of crossing the alternate path of cold heat exchanger is connected with the first end of the first path through the first branch road throttle part, and described the second end of crossing the alternate path of cold heat exchanger is connected with the second end of the first path through the second branch road throttle part; The described first end of crossing the alternate path of cold heat exchanger is connected with the entrance of described fluid reservoir through the first switch valve, and described the second end of crossing the alternate path of cold heat exchanger is connected with the entrance of described fluid reservoir through second switch valve.
Preferably, when refrigerating state, described the second branch road throttle part and the unlatching of the first switch valve, described the first branch road throttle part and second switch valve are closed; When heating state, described the second branch road throttle part and the first switch valve are closed, described the first branch road throttle part and second switch valve are opened, and cross the first path of cold heat exchanger and the refrigerant in alternate path be mutual reverse shape and flow so that described.
Preferably, described air-conditioner outdoor unit also comprises main line throttle part, and the second end of described outdoor heat exchanger assembly is communicated with by described main line throttle part with mistake cold heat exchanger; Air-conditioner outdoor unit is when refrigerating state, and described main line throttle part only plays conducting effect to refrigerant, and when heating state, described main line throttle part will be to coolant throttle step-down.
Preferably, described main line throttle part and branch road throttle part are electric expansion valve.
The utility model further provides a kind of air-conditioning system that comprises above-mentioned air-conditioner outdoor unit.
Air-conditioner outdoor unit provided by the utility model, by being provided with step-down reversing pipeline, described step-down reversing pipeline makes described the first path in cold heat exchanger and the refrigerant in alternate path crossed be mutual reverse shape and flow.Thereby the efficiency when making air-conditioner outdoor unit in refrigeration and heating is all higher, thereby improve the whole efficiency of air-conditioning system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model air-conditioner outdoor unit the first embodiment;
Refrigerant circulation schematic diagram when Fig. 2 is the air-conditioner outdoor unit refrigerating state shown in Fig. 1;
Fig. 3 is the refrigerant circulation schematic diagram while heating state of the air-conditioner outdoor unit shown in Fig. 1;
Fig. 4 is the schematic diagram of the utility model air-conditioner outdoor unit the second embodiment;
The schematic diagram of Fig. 5 the utility model air-conditioner outdoor unit the 3rd embodiment.
The realization of the utility model object, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The invention provides a kind of air-conditioner outdoor unit 1, please refer to Fig. 1, in one embodiment, this air-conditioner outdoor unit 1 comprises compressor 17, fluid reservoir 14, outdoor heat exchanger assembly 11, cross valve 18 and the first refrigerant in-out end 19 and the second refrigerant in-out end 12 for being connected with indoor apparatus of air conditioner, and entrance 141 and the first refrigerant in-out end 19 of the outlet 171 of described compressor 17, the first end 111 of described outdoor heat exchanger assembly 11, described fluid reservoir 14 are connected with the corresponding interface of described cross valve 18 respectively by pipeline.Air-conditioner outdoor unit 1 also comprised that crossing cold heat exchanger 15 described in cold heat exchanger 15 and step-down reversing pipeline comprised the first path 151 and alternate path 152, described the first path 151 comprises first end 1511 and the second end 1512, and described alternate path 152 comprises first end 1521 and the second end 1522.In described step-down reversing pipeline, be provided with branch road throttle part 31 and commutation element.The second end 112 of described outdoor heat exchanger assembly 11 connected the first end 1511 of the first path 151 of cold heat exchanger 15, described the second refrigerant in-out end 12 connected the second end 1512 of the first path 151 of cold heat exchanger 15, to form the master stream circulation path for refrigerant circulation.Described step-down reversing pipeline is with the first path 151, the mistake alternate path 152 of cold heat exchanger and the entrance 141 of fluid reservoir 14 of cold heat exchanger 15 are connected excessively.Described branch road throttle part position 31 is between described master stream circulation path and the alternate path 152 of described cold heat exchanger 15 excessively, the part refrigerant that described commutation element is controlled the described master stream circulation path of flowing through flows into the described alternate path 152 of crossing cold heat exchanger 15 through described branch road throttle part 31 and along the contrary direction of the refrigerant flow direction with described the first path 151 of crossing cold heat exchanger 15, then is back to the entrance 141 of described fluid reservoir 14.
Existing air-conditioner outdoor unit, if the refrigerating capacity of paying the utmost attention to,, when refrigeration mode, the refrigerant of crossing in cold heat exchanger the first path 151 and alternate path 152 is countercurrent flow, and the refrigerant of crossing in cold heat exchanger the first path 151 and alternate path 152 during heating mode is following current heat exchange; If pay the utmost attention to heating capacity,, when heating mode, the refrigerant of crossing in cold heat exchanger the first path 151 and alternate path 152 is countercurrent flow, and the refrigerant of crossing in cold heat exchanger the first path 151 and alternate path 152 during refrigeration mode is following current heat exchange.And in above-mentioned air-conditioner outdoor unit 1, by being provided with step-down reversing pipeline, described step-down reversing pipeline makes described cross when the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 can and heat state at refrigerating state, all keep mutual reverse flow state.Thereby the efficiency when making air-conditioner outdoor unit 1 in refrigeration and heating is all higher, thereby improve the whole efficiency of air-conditioning system.
Particularly, described air-conditioner outdoor unit 1 also comprises main line throttle part 13, and the second end 112 of described outdoor heat exchanger assembly 11 is communicated with by described main line throttle part 13 with mistake cold heat exchanger 15.Air-conditioner outdoor unit is when refrigerating state, and throttle part 13 pairs of refrigerants in described main line only play conducting effect, and when heating state, described main line throttle part 13 will be to coolant throttle step-down.
Further, one end 311 of described branch road throttle part 31 is connected with the described first end 1511 of crossing the first path 151 of cold heat exchanger 15.Described commutation element comprises two triple valves, is respectively the first triple valve 21 and the second triple valve 22.Two triple valves 21,22 first end 211,221 separately is all connected with the first end 1521 of crossing the alternate path 152 of cold heat exchanger 15; Two triple valves 21,22 the second end 212,222 separately is all connected with the second end 1522 of crossing the alternate path 152 of cold heat exchanger 15; The 3rd end 213 of the first triple valve 21 is connected with the other end 312 of branch road throttle part 31, and the 3rd end 223 of the second triple valve 22 is connected with the entrance 141 of fluid reservoir 14.
Described two triple valves 21,22 break-makes coordinate, and make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.Described in literary composition specific as follows.
Please refer to Fig. 2, when refrigeration mode, described its 3rd end 213 of the first triple valve 21 conductings and the second end 212, the second its first ends of triple valve 22 conductings and the 3rd end.Particularly, described compressor 17 reaches outdoor heat exchanger assembly 11 by refrigerant through cross valve 18, and refrigerant is shunted after outdoor heat exchanger assembly 11 and main line throttle part 13 again.Part refrigerant flows into through the first end 1511 of the first path 151 of cold heat exchanger 15, and the second end 1512 flows out to the second refrigerant in-out end 12 and flow to indoor apparatus of air conditioner.Another part refrigerant flow to the 3rd end 213 of the first triple valve 21 after the step-down cooling of branch road throttle part 31, then through the second end 212 of the first triple valve 21, flow to the second end 1522 of alternate path 152.The refrigerant of step-down cooling flow to first end 1521 from the second end 1522 in alternate path 152, with the refrigerant in the first path 151 be reverse flow.The refrigerant of step-down cooling flowed out cold heat exchanger 15 through the first end 1521 of alternate path 152, then flowed into through the first end 221 of the second triple valve 22, then from the 3rd end 223, flow to the entrance 141 of fluid reservoir 14.
Please refer to Fig. 3, when heating mode, described the first triple valve 21 conductings its 3rd end and first end, the second its second end of triple valve 22 conductings and the 3rd end.Particularly, the refrigerant through room air conditioner flows into air-conditioner outdoor unit 1 from the second refrigerant in-out end 12.Refrigerant flow to cold heat exchanger 15 from the second refrigerant in-out end 12, and refrigerant flows into from the second end 1512 of the first path 151 of cold heat exchanger 15, from first end 1511, flows out to main line throttle part 13 and branch road throttle part 31.Refrigerant through the 13 step-down coolings of main line throttle part flow to after outdoor heat exchanger assembly 11 wind cooling temperature lowerings, then flow to fluid reservoir 14.Through the refrigerant of branch road throttle part 31 step-down coolings, flow to the 3rd end 213 of the first triple valve 21, from first end 211, flow to again the first end 1521 of alternate path 152, through the second end 1522, flow out to the second end 222 of the second triple valve 22, then from the 3rd end 223, flowing to the entrance 141 of fluid reservoir 14.
The switch motion matching by above-mentioned triple valve 22,23, makes the refrigerant of step-down cooling can flow into from the first end 1521 of second channel 152 the second ends 1522 and flows out, or from the second end 1522, flow into and flow out from first end 1521.Thereby can, so that the refrigerant in the refrigerant in first passage 151 and second channel 152 is reverse flow, reach the effect that improves heat exchange efficiency.
In the above-described embodiments, described triple valve 21,22 is three-way solenoid valve 21,22, and described main line throttle part 13 and branch road throttle part 31 are electric expansion valve, thereby can realize automatically controlledly, reaches more accurately and easily and controls.
Please refer to Fig. 4, those skilled in the art understand, and step-down reversing pipeline can also be other structures.The utility model air-conditioner outdoor unit provides the second embodiment, on the basis of above-described embodiment air-conditioner outdoor unit 1, only this has become step-down reversing pipeline part to this air-conditioner outdoor unit 1a, at this, only introduce new step-down reversing pipeline part, other structures please refer to the explanation of above-described embodiment, do not repeat them here.
In a second embodiment, one end 311 of described branch road throttle part 31 is connected with the described first end 1511 of crossing the first path 151 of cold heat exchanger 15, described commutation element comprises four switch valves, is respectively the first switch valve 21a, second switch valve 22a, the 3rd switch valve 23a and the 4th switch valve 24a.The described first end 1521 of crossing the alternate path 152 of cold heat exchanger 15 connects the other end 312 of branch road throttle part 31 through the first switch valve 21a, the described first end 1521 of crossing the alternate path 152 of cold heat exchanger 15 connects the entrance 141 of fluid reservoir 14 through second switch valve 22a.Described the second end 1522 of crossing the alternate path 152 of cold heat exchanger 15 connects the other end 312 of branch road throttle part 31 through the 3rd switch valve 23a, described the second end 1522 of crossing the alternate path 152 of cold heat exchanger 15 connects the entrance 141 of fluid reservoir 14 through the 4th switch valve 24a.
Described four switch valve 21a, 22a, 23a, 24a break-make coordinate, and make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.
In above-described embodiment, the flow direction of refrigerant has been done to detailed description, in the present embodiment, only do the description of key component, other parts please refer to above-mentioned explanation.Particularly, when refrigerating state, the 3rd switch valve 23a and second switch valve 22a open, and the first switch valve 21a and the 4th switch valve 24a close.Refrigerant flows into through the first end 1511 of the first path 151 of cold heat exchanger 15, and the second end 1512 flows out; Coolant distribution to branch road throttle part 31 simultaneously, through switch valve 23a, from the second end 1522 of alternate path 152, flow into again, first end 1521 flows out, through switch valve 22a, flow to again the entrance 141 of fluid reservoir 14, make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.
When heating state, the 3rd switch valve 23a and second switch valve 22a close, and the first switch valve 21a and the 4th switch valve 24a open.Refrigerant flows into through the second end 1512 of the first path 151 of cold heat exchanger 15, and first end 1511 flows out, then branches to main line throttle part 13 and branch road throttle part 31.The refrigerant of branch road throttle part 31 of flowing through flows into from the first end 1521 of alternate path 152 through switch valve 21a again, and the second end 1522 flows out, then through switch valve 24a, flow to the entrance 141 of fluid reservoir 14.Thereby make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.
Please refer to Fig. 5, the utility model air-conditioner outdoor unit provides the 3rd embodiment, on the basis of above-described embodiment air-conditioner outdoor unit 1, only this becomes step-down reversing pipeline part to this air-conditioner outdoor unit 1b, at this, only introduce new construction part, other structures please refer to the explanation of above-described embodiment, do not repeat them here.
In the 3rd embodiment, the quantity of described branch road throttle part is two, is respectively the first branch road throttle part 31 and the second branch road throttle part 32, and described commutation element comprises the one the first switch valve 22b and the second second switch valve 23b.The described first end 1521 of crossing the alternate path 152 of cold heat exchanger 15 is connected with the first end 1511 of the first path 151 through the first branch road throttle part 31, and described the second end 1522 of crossing the alternate path 152 of cold heat exchanger 15 is connected with the second end 1512 of the first path 151 through the second branch road throttle part 32; The first end 1521 of the described alternate path 152 of crossing cold heat exchanger 15 is connected with the entrance 141 of fluid reservoir 14 through the one the first switch valve 22b, and the second end 1522 of the alternate path 152 of described mistake cold heat exchanger 15 is connected with the entrance 141 of fluid reservoir 14 through the second second switch valve 23b.
Described two branch road throttle parts 31 and two switch valve break-makes coordinate, and make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.
Particularly, when refrigerating state, the second branch road throttle part 32 and the first switch valve 22b are held open, and branch road throttle part 31 and second switch valve 23b keep closing.Refrigerant flows into through the first end 1511 of the first path 151 of cold heat exchanger 15, and the second end 1512 flows out; Refrigerant flows into from the second end 1522 of alternate path 152 through the second branch road throttle part 32 simultaneously, first end 1521 flows out, through the first switch valve 22b, flow to again the entrance 141 of fluid reservoir 14, make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.
When heating state, the second branch road throttle part 32 and the first switch valve 22b keep closing, and branch road throttle part 31 and second switch valve 23b are held open.Refrigerant flows into through the second end 1512 of the first path 151 of cold heat exchanger 15, and first end 1511 flows out; Refrigerant flows into from the first end 1521 of alternate path 152 through branch road throttle part 31 simultaneously, the second end 1522 flows out, through second switch valve 23b, flow to again the entrance 141 of fluid reservoir 14, make described the first path 151 in cold heat exchanger 15 and the refrigerant in alternate path 152 crossed be mutual reverse shape and flow.。
The utility model also provides a kind of air-conditioning system, and this air-conditioning system comprises above-mentioned arbitrary air-conditioner outdoor unit, and the structure of this support air-conditioner outdoor unit can, with reference to above-described embodiment, not repeat them here.Naturally, because the air-conditioning system of the present embodiment has adopted the technical scheme of above-mentioned air-conditioner outdoor unit, so this air-conditioning system has all beneficial effects of above-mentioned air-conditioner outdoor unit.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. an air-conditioner outdoor unit, comprise compressor, fluid reservoir, outdoor heat exchanger assembly, cross valve, and the first refrigerant in-out end and the second refrigerant in-out end for being connected with indoor apparatus of air conditioner, the outlet of described compressor, the first end of described outdoor heat exchanger assembly, the entrance of described fluid reservoir and the first refrigerant in-out end are connected with the corresponding interface of described cross valve respectively by pipeline, it is characterized in that, described air-conditioner outdoor unit also comprised cold heat exchanger and step-down reversing pipeline, the described cold heat exchanger of crossing comprises the first path and alternate path, described the first path comprises first end and the second end, described alternate path comprises first end and the second end, in described step-down reversing pipeline, be provided with branch road throttle part and commutation element,
The second end of described outdoor heat exchanger assembly connected the first end of the first path of cold heat exchanger, and described the second refrigerant in-out end connected the second end of the first path of cold heat exchanger, to form the master stream circulation path for refrigerant circulation;
Described step-down reversing pipeline is with the first path, the mistake alternate path of cold heat exchanger and the entrance of fluid reservoir of cold heat exchanger are connected excessively; Described branch road throttle part is between described master stream circulation path and the alternate path of described cold heat exchanger excessively, the part refrigerant that described commutation element is controlled the described master stream circulation path of flowing through flows into the described alternate path of crossing cold heat exchanger through described branch road throttle part and along the contrary direction of the refrigerant flow direction with described the first path of crossing cold heat exchanger, then is back to the entrance of described fluid reservoir.
2. air-conditioner outdoor unit according to claim 1, it is characterized in that, one end of described branch road throttle part is connected with the described first end of crossing the first path of cold heat exchanger, described commutation element comprises the first triple valve and the second triple valve, two triple valves first end separately is all connected with the first end of crossing the alternate path of cold heat exchanger, and two triple valves the second end separately is all connected with the second end of the alternate path of mistake cold heat exchanger; The 3rd end of the first triple valve is connected with the other end of described branch road throttle part, and the 3rd end of the second triple valve is connected with the entrance of fluid reservoir.
3. air-conditioner outdoor unit according to claim 2, is characterized in that, when refrigerating state, and described the first triple valve conducting its 3rd end and second end, second its first end of triple valve conducting and the 3rd end; When heating state, described the first triple valve conducting its 3rd end and first end, its second end of the second triple valve conducting and the 3rd end; So that being mutual reverse shape, the first path of described cold heat exchanger excessively and the refrigerant in alternate path flow.
4. air-conditioner outdoor unit according to claim 1, it is characterized in that, one end of described branch road throttle part is connected with the described first end of crossing the first path of cold heat exchanger, and described commutation element comprises the first switch valve, second switch valve, the 3rd switch valve and the 4th switch valve; The described alternate path first end of crossing cold heat exchanger connects the other end of branch road throttle part through the first switch valve, the described alternate path first end of crossing cold heat exchanger connects the entrance of fluid reservoir through second switch valve; Described alternate path the second end of crossing cold heat exchanger connects the other end of branch road throttle part through the 3rd switch valve, described alternate path the second end of crossing cold heat exchanger connects the entrance of fluid reservoir through the 4th switch valve; .
5. air-conditioner outdoor unit according to claim 4, is characterized in that, when refrigerating state, the 3rd switch valve and second switch valve are opened, and the first switch valve and the 4th switch valve are closed; When heating state, the 3rd switch valve and second switch valve are closed, and the first switch valve and the 4th switch valve are opened; So that being mutual reverse shape, the first path of described cold heat exchanger excessively and the refrigerant in alternate path flow.
6. air-conditioner outdoor unit according to claim 1, is characterized in that, the quantity of described branch road throttle part is two, is respectively the first branch road throttle part and the second branch road throttle part, and described commutation element comprises the first switch valve and second switch valve; The described first end of crossing the alternate path of cold heat exchanger is connected with the first end of the first path through the first branch road throttle part, and described the second end of crossing the alternate path of cold heat exchanger is connected with the second end of the first path through the second branch road throttle part; The described first end of crossing the alternate path of cold heat exchanger is connected with the entrance of described fluid reservoir through the first switch valve, and described the second end of crossing the alternate path of cold heat exchanger is connected with the entrance of described fluid reservoir through second switch valve.
7. air-conditioner outdoor unit according to claim 6, is characterized in that, when refrigerating state, described the second branch road throttle part and the unlatching of the first switch valve, described the first branch road throttle part and second switch valve are closed; When heating state, described the second branch road throttle part and the first switch valve are closed, described the first branch road throttle part and second switch valve are opened, and cross the first path of cold heat exchanger and the refrigerant in alternate path be mutual reverse shape and flow so that described.
8. according to the air-conditioner outdoor unit described in claim 1 to 7 any one, it is characterized in that, described air-conditioner outdoor unit also comprises main line throttle part, and the second end of described outdoor heat exchanger assembly is communicated with by described main line throttle part with mistake cold heat exchanger; Air-conditioner outdoor unit is when refrigerating state, and described main line throttle part only plays conducting effect to refrigerant, and when heating state, described main line throttle part will be to coolant throttle step-down.
9. air-conditioner outdoor unit according to claim 8, is characterized in that, described main line throttle part and branch road throttle part are electric expansion valve.
10. an air-conditioning system, is characterized in that, comprises the air-conditioner outdoor unit described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208533.4U CN203837343U (en) | 2014-04-25 | 2014-04-25 | Air-conditioning system and air conditioner external unit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420208533.4U CN203837343U (en) | 2014-04-25 | 2014-04-25 | Air-conditioning system and air conditioner external unit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837343U true CN203837343U (en) | 2014-09-17 |
Family
ID=51515170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420208533.4U Expired - Fee Related CN203837343U (en) | 2014-04-25 | 2014-04-25 | Air-conditioning system and air conditioner external unit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203837343U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247668A (en) * | 2016-08-29 | 2016-12-21 | 广东美的暖通设备有限公司 | Air-conditioner system and the control method of air-conditioner system |
| CN106288488A (en) * | 2016-08-29 | 2017-01-04 | 广东美的暖通设备有限公司 | Air-conditioner system and the control method of air-conditioner system |
| CN106440451A (en) * | 2016-08-26 | 2017-02-22 | 珠海格力电器股份有限公司 | Heat pump system and automobile with same |
| WO2017148225A1 (en) * | 2016-02-29 | 2017-09-08 | 珠海格力电器股份有限公司 | Multi-split air conditioning device and system, cooling and heating method, and method for controlling multi-split air conditioning system |
-
2014
- 2014-04-25 CN CN201420208533.4U patent/CN203837343U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017148225A1 (en) * | 2016-02-29 | 2017-09-08 | 珠海格力电器股份有限公司 | Multi-split air conditioning device and system, cooling and heating method, and method for controlling multi-split air conditioning system |
| CN106440451A (en) * | 2016-08-26 | 2017-02-22 | 珠海格力电器股份有限公司 | Heat pump system and automobile with same |
| CN106247668A (en) * | 2016-08-29 | 2016-12-21 | 广东美的暖通设备有限公司 | Air-conditioner system and the control method of air-conditioner system |
| CN106288488A (en) * | 2016-08-29 | 2017-01-04 | 广东美的暖通设备有限公司 | Air-conditioner system and the control method of air-conditioner system |
| WO2018040579A1 (en) * | 2016-08-29 | 2018-03-08 | 广东美的暖通设备有限公司 | Air conditioner system and control method of air conditioner system |
| CN106288488B (en) * | 2016-08-29 | 2019-02-01 | 广东美的暖通设备有限公司 | The control method of air-conditioner system and air-conditioner system |
| CN106247668B (en) * | 2016-08-29 | 2019-06-18 | 广东美的暖通设备有限公司 | The control method of air-conditioner system and air-conditioner system |
| US10914486B2 (en) | 2016-08-29 | 2021-02-09 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Air conditioner system and a control method for the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201306902Y (en) | Air conditioner with heat-recovery type heat pump and refrigerator integrated machine | |
| CN203385256U (en) | Multi-split air conditioner parallel connection module system for defrosting without shutdown | |
| CN203907965U (en) | An air-conditioner heat exchange system | |
| CN103822401B (en) | Air-conditioner heat-exchange system and air-conditioner | |
| CN203837343U (en) | Air-conditioning system and air conditioner external unit thereof | |
| CN103673138B (en) | Air-conditioner and control method thereof | |
| CN204943956U (en) | A kind of efficient cold and warm type air-conditioning system | |
| CN104180442A (en) | Air conditioning system | |
| CN104848579B (en) | Air conditioner and its heat-exchange system | |
| CN104930763A (en) | Air conditioner refrigerating system | |
| CN204494892U (en) | The cold air-source super low temperature heat pump unit pressing down white heat exchanger is crossed in a kind of application | |
| CN105180304A (en) | Air-conditioning outdoor unit, multifunctional air-conditioning system and working method thereof | |
| CN204063308U (en) | Air conditioning system | |
| CN203928497U (en) | Heat exchanger and air-conditioning | |
| CN205747624U (en) | Air conditioning system | |
| CN104359244A (en) | Refrigeration system for refrigerator and refrigerator | |
| CN204254925U (en) | Heat exchange system and air conditioner with same | |
| CN203501358U (en) | Air conditioning system | |
| CN203518362U (en) | Heat pump air-conditioning system and automobile with same | |
| CN105783138B (en) | A kind of outdoor air-conditioner | |
| CN201954862U (en) | Split air conditioner with defrosting function | |
| CN204678735U (en) | Air-conditioner and heat-exchange system thereof | |
| CN104359243A (en) | Refrigeration system for refrigerator and refrigerator | |
| CN205227903U (en) | Three -tube air conditioning system | |
| CN209371571U (en) | Heat-exchanger flow-path structure and heat exchanger, outdoor unit, air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20190425 |