CN202092239U - Multi-split air conditioner - Google Patents
Multi-split air conditioner Download PDFInfo
- Publication number
- CN202092239U CN202092239U CN2011201721945U CN201120172194U CN202092239U CN 202092239 U CN202092239 U CN 202092239U CN 2011201721945 U CN2011201721945 U CN 2011201721945U CN 201120172194 U CN201120172194 U CN 201120172194U CN 202092239 U CN202092239 U CN 202092239U
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- heat exchanger
- refrigerant pipeline
- air conditioner
- split air
- branch
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Abstract
The utility model provides a multi-split air conditioner comprising an indoor unit provided with at least two indoor heat exchangers connected in parallel, wherein two ends of the indoor unit are respectively connected in series with a first main coolant pipeline and a second main coolant pipeline in a one-to-one correspondence way; the first main coolant pipeline and the second main coolant pipeline are respectively branched to form branch coolant pipelines corresponding to each indoor heat exchanger one to one; and a joint between each branch coolant pipeline and the corresponding indoor heat exchanger adopts a screwed joint serving as a bipass. By using the multi-split air conditioner, the defect of higher pressure loss caused by rapid change of the flowing direction of a coolant when the branch coolant pipelines flow towards the main coolant pipelines through a stop valve is eliminated.
Description
Technical field
The utility model relates to a kind of multi-split air conditioner.
Background technology
The partial structurtes schematic diagram of the multi-split air conditioner of prior art as shown in Figure 1, it comprises: outdoor heat exchanger 4, the total refrigerant pipeline 48 that has the indoor units of the indoor heat exchanger 8 of at least two parallel connections, draws from outdoor heat exchanger 4.Wherein, told a plurality of branches refrigerant pipeline from total refrigerant pipeline 48.Adopt stop valve to be connected between respective chambers heat exchanger and the respective branch refrigerant pipeline.For simplicity, Fig. 1 only illustrates branch's refrigerant pipeline telling from total refrigerant pipeline 48 and to respective chambers heat exchanger 8 that should branch's refrigerant pipeline, adopts stop valve 9 to be connected between this branch's refrigerant pipeline and the corresponding indoor heat exchanger 8.Because between indoor heat exchanger 8 and total refrigerant pipeline 48, the refrigerant stop valve of need flowing through, and stop valve flows to sharply variation of generation before and after can causing refrigerant, 90 ° of variations took place in flow direction before and after for example meeting as shown in Figure 2 caused refrigerant, cause thus and cause the big pressure loss in the refrigerant flow process.Obviously, indoor heat exchanger in parallel is many more, and corresponding stop valve is just many more, and the refrigerant pressure loss is also just big more, and this has produced bad influence to the complete machine performance.
The utility model content
At the problem that exists in the correlation technique, the purpose of this utility model is to provide the method for a kind of multi-split air conditioner and the control refrigerant pressure loss, be branched a plurality of branches refrigerant pipeline that the back forms to solve total refrigerant pipeline of connect with indoor units in the prior art and since with indoor units in the respective chambers heat exchanger between adopt stop valve to be connected to cause than the technical problem of the pressure loss greatly.
For achieving the above object, the utility model provides a kind of multi-split air conditioner, comprise: indoor units with at least two indoor heat exchangers in parallel, one end of indoor units is in series with first total refrigerant pipeline, the other end is in series with second total refrigerant pipeline, first and second total refrigerant pipelines have been told respectively and each indoor heat exchanger branch's refrigerant pipeline one to one, and the connecting filament head of bipass formula is adopted in the junction between each branch's refrigerant pipeline and the corresponding indoor heat exchanger.
Preferably, also be respectively equipped with stop valve on first and second total refrigerant pipelines.
Preferably, the connecting filament head is a straight pipe.
Preferably, multi-split air conditioner also comprises cross valve, compressor and the outdoor heat exchanger of connecting with second total refrigerant pipeline, and the exhaust outlet of described compressor is by cross valve, selectively with outdoor heat exchanger or first total refrigerant pipeline connection.
Preferably, the exhaust outlet of compressor and air entry are communicated with one by one with two ports of cross valve respectively, first total refrigerant pipeline is communicated with one of two ports in addition of cross valve, and in two ports in addition of an end of outdoor heat exchanger and cross valve another is communicated with the other end of outdoor heat exchanger and second total refrigerant pipeline connection.
The beneficial effects of the utility model are: be connected by the connecting filament head between indoor heat exchanger and the respective branch refrigerant pipeline in the utility model, connect the big refrigerant pressure loss that is caused than the available technology adopting stop valve, the utility model has reduced the pressure loss of refrigerant, has correspondingly improved the complete machine performance of air-conditioner;
Further, be under the situation of straight pipe at the connecting filament head, the angle of front and back flow direction that flows through the refrigerant of connecting filament head is 180 °, i.e. refrigerant streamlined flow, this moment, refrigerant flowed the gentlyest, made that correspondingly the effect that reduces the refrigerant pressure loss is the most remarkable.
Description of drawings
Fig. 1 is the partial structurtes schematic diagram of the multi-split air conditioner of prior art;
Fig. 2 is the partial structurtes schematic diagram of an embodiment of the utility model multi-split air conditioner, and each that wherein shows in a plurality of indoor heat exchangers in parallel adopts straight tubular connecting filament head as joint, to be connected with respective branch refrigerant pipeline;
Fig. 3 is the fundamental diagram of the utility model multi-split air conditioner, shows the detailed situation that is provided with the connecting filament head.
The specific embodiment
The schematic diagram of the partial structurtes figure of the utility model multi-split air conditioner as shown in Figure 2 and the utility model multi-split air conditioner shown in Fig. 3.In conjunction with Fig. 2 and Fig. 3, multi-split air conditioner of the present utility model comprises: indoor units 80 has at least two indoor heat exchangers 8 and 8 ' in parallel; And the first total refrigerant pipeline 33 that is connected on an end of indoor units, be connected on second total refrigerant pipeline 48 of the other end of indoor units 80; Wherein, first total refrigerant pipeline 33, second total refrigerant pipeline 48 branches out respectively and each indoor heat exchanger branch's refrigerant pipeline one to one, adopts bipass formula connecting filament head to be connected between each branch's refrigerant pipeline and the corresponding indoor heat exchanger.Property purpose presented for purpose of illustration, Fig. 3 shows the indoor heat exchanger 8 and 8 ' of two parallel connections, indoor heat exchanger 8 is connected with the branch's refrigerant pipeline that branches out from second total refrigerant pipeline 48 by connecting filament head 81, is connected with the branch's refrigerant pipeline that branches out from first total refrigerant pipeline 33 by connecting filament head 83; Similarly, adopt connecting filament head 81 to be connected between indoor heat exchanger 8 ' and the corresponding branch refrigerant pipeline with 83 ', for example, under heating mode, refrigerant from first total refrigerant pipeline 33 is divided into two branch roads, and a branch road flows to second total refrigerant pipeline 48 behind connecting filament head 83, indoor heat exchanger 8, connecting filament head 81; Another branch road flows to second total refrigerant pipeline 48 behind connecting filament head 83 ', indoor heat exchanger 8 ', connecting filament head 81 '.By this, in the utility model, be connected by bipass formula connecting filament head between indoor heat exchanger and the respective branch refrigerant pipeline, than stop valve, bipass formula connecting filament head makes refrigerant flow to rapid variation can not take place, for example make when flowing to angle before and after the refrigerant and being 90 ° at stop valve, the connecting filament head makes and flows to angle before and after the refrigerant is obtuse angle greater than 90 °, so adopt the connecting filament head can reduce the pressure loss that produces when refrigerant flows between indoor heat exchanger and total refrigerant pipeline (first and second total refrigerant pipelines), correspondingly improved the complete machine performance of air-conditioner.
In order to illustrate further the utility model, partial structurtes schematic diagram referring to an illustrative examples of the utility model multi-split air conditioner shown in Fig. 2 shows outdoor heat exchanger 4, leads to second total refrigerant pipeline 48, indoor heat exchanger 8 from outdoor heat exchanger 4.As shown in Figure 2, adopt connecting filament head 81 to be connected between the branch's refrigerant pipeline that branches out from second total refrigerant pipeline 48 and the indoor heat exchanger 8, and in this example the connecting filament head is made as straight pipe, promptly, flowing through, the angle of flow direction A and B is 180 ° before and after the refrigerant of straight pipe, in other words, refrigerant linearly flows when flowing through straight pipe.In this case, because the refrigerant of the straight pipe of flowing through linearly flows, this moment, refrigerant was mobile the mildest, made that correspondingly the effect that reduces the refrigerant pressure loss is the most remarkable.Obviously be appreciated that the connecting filament head also can be the bipass of other form, for example the angle between the axis of two of this bipass ports greater than 90 ° smaller or equal to 180 °.
Continuation in multi-split air conditioner of the present utility model, also is respectively equipped with stop valve 5 and 6 as total stop valve, with the switch of refrigerant in all indoor heat exchangers in the control indoor units 80 referring to Fig. 3 on first total refrigerant pipeline 33, second total refrigerant pipeline 48.As further illustrating among Fig. 3, multi-split air conditioner of the present utility model also comprises: cross valve 3, compressor 1 and the outdoor heat exchanger 4 of connecting with second total refrigerant pipeline 48, the exhaust outlet 13 of compressor 1 and air entry 11 are communicated with one by one with two ports of cross valve 3 respectively, first total refrigerant pipeline 33 is communicated with one of two ports in addition of cross valve 3, and in two ports in addition of an end of outdoor heat exchanger 4 and cross valve 3 another be communicated with, and the other end of outdoor heat exchanger 4 is communicated with second total refrigerant pipeline 48.Thereby the exhaust outlet 13 of compressor 1 is communicated with outdoor heat exchanger 4 or first total refrigerant pipeline 33 selectively by cross valve 3.
To sum up, be connected by the connecting filament head between indoor heat exchanger and the respective branch refrigerant pipeline in the utility model, connect the big refrigerant pressure loss that is caused than the available technology adopting stop valve, the utility model has reduced the pressure loss of refrigerant, has correspondingly improved the complete machine performance of air-conditioner; At the connecting filament head is under the situation of straight pipe, and the angle of front and back flow direction that flows through the refrigerant of connecting filament head is 180 °, i.e. refrigerant streamlined flow, and this moment, refrigerant flowed the gentlyest, made that correspondingly the effect that reduces the refrigerant pressure loss is the most remarkable.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. multi-split air conditioner comprises: have the indoor units (80) of at least two indoor heat exchangers (8,8 ') in parallel, an end of indoor units is in series with first total refrigerant pipeline (33), and the other end is in series with second total refrigerant pipeline (48),
It is characterized in that: described first and second total refrigerant pipelines (33,48), branch has and each indoor heat exchanger branch's refrigerant pipeline one to one respectively, and each branch's refrigerant pipeline adopts the connecting filament head (81,83,81 ', 83 ') of bipass formula to be connected with the junction between the corresponding indoor heat exchanger (8,8 ').
2. multi-split air conditioner according to claim 1 is characterized in that: also be respectively equipped with stop valve (5,6) on described first and second total refrigerant pipelines (33,48).
3. multi-split air conditioner according to claim 1 and 2 is characterized in that: described connecting filament head (81,83,81 ', 83 ') is a straight pipe.
4. multi-split air conditioner according to claim 3 is characterized in that: also comprise cross valve (3), compressor (1) and the outdoor heat exchanger (4) of connecting with second total refrigerant pipeline (48),
Wherein, the exhaust outlet (13) of described compressor (1) is communicated with described outdoor heat exchanger (4) or described first total refrigerant pipeline (33) selectively by described cross valve (3).
5. multi-split air conditioner according to claim 4 is characterized in that:
The exhaust outlet (13) of described compressor (1) and air entry (11) are communicated with one by one with two ports of described cross valve (3) respectively, and described first total refrigerant pipeline (33) is communicated with one of two ports in addition of described cross valve (3), and
In two ports in addition of one end of described outdoor heat exchanger (4) and described cross valve (3) another is communicated with, and the other end is communicated with described second total refrigerant pipeline (48).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201721945U CN202092239U (en) | 2011-05-26 | 2011-05-26 | Multi-split air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201721945U CN202092239U (en) | 2011-05-26 | 2011-05-26 | Multi-split air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092239U true CN202092239U (en) | 2011-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201721945U Expired - Fee Related CN202092239U (en) | 2011-05-26 | 2011-05-26 | Multi-split air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202092239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230647A (en) * | 2011-05-26 | 2011-11-02 | 海尔集团公司 | Multi-split air conditioner |
-
2011
- 2011-05-26 CN CN2011201721945U patent/CN202092239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230647A (en) * | 2011-05-26 | 2011-11-02 | 海尔集团公司 | Multi-split air conditioner |
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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 |
Granted publication date: 20111228 Termination date: 20170526 |
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| CF01 | Termination of patent right due to non-payment of annual fee |