CN204880393U - Air conditioner system - Google Patents
Air conditioner system Download PDFInfo
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- CN204880393U CN204880393U CN201520637092.4U CN201520637092U CN204880393U CN 204880393 U CN204880393 U CN 204880393U CN 201520637092 U CN201520637092 U CN 201520637092U CN 204880393 U CN204880393 U CN 204880393U
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Abstract
The utility model provides an air conditioner system, including double -cylinder varactor compressor, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, double -cylinder varactor compressor, outdoor heat exchanger, throttling arrangement and indoor heat exchanger are linked together through the pipeline and constitute refrigerant passage, still include: four -way reversing valve and three -way pipe, four -way reversing valve are linked together with the gas vent and the return -air mouth of double -cylinder varactor compressor respectively, the three -way pipe is established on the pipeline of connecting four -way reversing valve and indoor heat exchanger, or the three -way pipe establishes on the pipeline of connecting four -way reversing valve and outdoor heat exchanger, and the little jar signal port of a port of three -way pipe and double -cylinder varactor compressor is linked together to through the pressure size of the little jar signal port of four -way reversing valve control department, and then the opening of little jar of control double -cylinder varactor compressor is stopped. The utility model provides an air conditioner system, the opening of little jar of only utilizing the four -way reversing valve of air conditioner system from the area can control double -cylinder varactor compressor is stopped, and the control process is simple, and pipeline low cost.
Description
Technical field
The utility model relates to air-conditioning technical field, more specifically, relates to a kind of air-conditioning system.
Background technology
The air-conditioning system of existing employing double-cylinder variable-capacity compressor on market, its pipeline is controlled cost height, and controlling functions is complicated, is unfavorable for the market competition of product.
Utility model content
The utility model is intended at least to solve one of technical problem existed in prior art.
For this reason, the purpose of this utility model is, provides a kind of pipeline to control cost low and controlling functions simple twin-tub transfiguration air-conditioning system.
For achieving the above object, the utility model provides a kind of air-conditioning system, comprise double-cylinder variable-capacity compressor, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, described double-cylinder variable-capacity compressor, described outdoor heat exchanger, described throttling arrangement and described indoor heat exchanger to be connected formation refrigerant flow by pipeline, described air-conditioning system also comprises: four-way change-over valve, and described four-way change-over valve is connected with gas returning port with the exhaust outlet of described double-cylinder variable-capacity compressor respectively; And three-way pipe, described three-way pipe is located on the pipeline of the described four-way change-over valve of connection and described indoor heat exchanger, or described three-way pipe is located on the pipeline of the described four-way change-over valve of connection and described outdoor heat exchanger, and the Single port of described three-way pipe is connected with the little cylinder signal mouth of described double-cylinder variable-capacity compressor, to be controlled the pressure size at described little cylinder signal mouth place by described four-way change-over valve, and then control the start and stop of little cylinder of described double-cylinder variable-capacity compressor.
The air-conditioning system that the utility model provides, by arranging a three-way pipe on refrigerant flow, and three ports making three-way pipe respectively with four-way change-over valve, one in indoor heat exchanger and outdoor heat exchanger, the little cylinder signal mouth of double-cylinder variable-capacity compressor is connected, the little cylinder signal mouth of the Single port of four-way change-over valve and double-cylinder variable-capacity compressor is made to be in normal open state, thus make the pressure at little cylinder signal mouth place suitable with the pressure of the port that four-way change-over valve is connected with little cylinder signal mouth, to utilize the pressure size at little cylinder signal mouth place to control the start and stop of the little cylinder of double-cylinder variable-capacity compressor, like this, the four-way change-over valve only utilizing air-conditioning system to carry can control the capacity of double-cylinder variable-capacity compressor, control procedure is simple, and pipeline is with low cost, thus improve the competitiveness of product in market.
Specifically, under air-conditioning system is in refrigeration or heating mode, when arrive four-way change-over valve this port be high pressure refrigerant time, little cylinder signal mouth place is also high pressure conditions, thus make the exhaust outlet of double-cylinder variable-capacity compressor and little cylinder signal mouth place all be in the suitable high pressure conditions of pressure, now can promote little cylinder to open, realize double-cylinder variable-capacity compressor twin-tub and run; When switch air-conditioning system mode of operation, change refrigerant flow to time, what arrive this port of four-way change-over valve is low pressure refrigerant, thus little cylinder signal mouth place is also low-pressure state, thus make that the exhaust outlet of double-cylinder variable-capacity compressor is high pressure conditions and little cylinder signal mouth place is low-pressure state, now can not promote little cylinder to open, realize the isolated operation of double-cylinder variable-capacity compressor vat.Like this, by controlling the operational mode of air-conditioning system, being switched the flow direction of refrigerant, can control the start and stop of little cylinder by four-way change-over valve, thus make controlling functions simple, pipeline is controlled cost low.
It will be appreciated by those skilled in the art that the start and stop by controlling little cylinder can control the discharge capacity of double-cylinder variable-capacity compressor, thus control refrigeration or the heating efficiency of air-conditioning system.Particularly, when twin-tub operation opened by little cylinder, compressor has huge discharge, and air-conditioning system can realize fast-refrigerating or heat, but the energy consumption of air-conditioning system is also higher simultaneously; And during little cylinder closedown single cylinder operation, the discharge capacity of compressor reduces relatively, but the energy consumption of air-conditioning system is also reduced simultaneously.And different regions are different with the requirement of heating capacity to the refrigeration of air-conditioning system, as subtropical zone, torrid areas, because outdoor environment temperature is higher, therefore during cooling in summer, need air-conditioning heavy-duty service with fast-refrigerating, then heavy-duty service is not needed during winter heating, otherwise the operating load of air-conditioning system can be caused not mate with required load, cause air-conditioner frequent start-stop, the reliability of influential system, and the situation that electrical network impacts is occurred, therefore for subtropical zone, torrid areas, by arranging a three-way pipe on the connecting line of four-way change-over valve and outdoor heat exchanger, and the Single port of three-way pipe is connected with little cylinder signal mouth, realize little cylinder closedown in winter single cylinder by four-way change-over valve to run, summer, the object that twin-tub runs simultaneously opened by little cylinder, and for refrigeration require low, require high area to heating, by arranging a three-way pipe on the connecting line of four-way change-over valve and indoor heat exchanger, and the Single port of three-way pipe is connected with little cylinder signal mouth, by four-way change-over valve realize winter little cylinder open that twin-tub runs, summer little cylinder close the object that single cylinder runs, thus meet the demand of different geographical to air-conditioning system refrigeration or heating capacity.
In addition, the air-conditioning system that the utility model above-described embodiment provides also has following additional technical feature:
According to an embodiment of the present utility model, described four-way change-over valve comprises D port, E port, S port and C port, described D port is connected with described gas returning port with described exhaust outlet respectively with described S port, described E port is connected with the Single port of described outdoor heat exchanger with the Single port of described indoor heat exchanger respectively with described C port, and described E port is connected by described three-way pipe with described little cylinder signal mouth.
According to an embodiment of the present utility model, described three-way pipe is located at the position near described E port.
In above-described embodiment, three-way pipe is arranged on the connecting line of four-way change-over valve and indoor heat exchanger, its three ports are connected with the E port of four-way change-over valve, the Single port of indoor heat exchanger, little cylinder signal mouth respectively, then the pressure of the little pressure at cylinder signal mouth place and the E port of four-way change-over valve is suitable.Under this kind of scheme: when air-conditioning system is in heating mode, high pressure refrigerant is discharged from the exhaust outlet of double-cylinder variable-capacity compressor, four-way change-over valve is entered through D port, flow out from E port, thus the refrigerant arriving E port is in high pressure conditions, therefore little cylinder signal mouth place is also high pressure conditions, and now little cylinder is opened, twin-tub runs, and effectively ensure that heating capacity and heating effect; When air-conditioning system is in refrigeration mode, high pressure refrigerant is discharged from the exhaust outlet of double-cylinder variable-capacity compressor, successively through four-way change-over valve, outdoor heat exchanger, throttling arrangement, indoor heat exchanger, arrive the E port of four-way change-over valve, now the refrigerant of E port is through the low pressure refrigerant after throttling arrangement reducing pressure by regulating flow, and therefore little cylinder signal mouth place is also low-pressure state, now little cylinder is closed, vat single cylinder runs, and reaches Effec-tive Function, avoids the object of high frequent start and stop.Preferably, three-way pipe is arranged on the position near E port, the in-cylinder pressure of E port and double-cylinder variable-capacity compressor can be avoided like this to have big difference, thus effectively ensure that the sensitivity that little cylinder is opened and reliability.
According to an embodiment of the present utility model, described four-way change-over valve comprises D port, E port, S port and C port, described D port is connected with described gas returning port with described exhaust outlet respectively with described S port, described E port is connected with the Single port of described outdoor heat exchanger with the Single port of described indoor heat exchanger respectively with described C port, and described C port is connected by described three-way pipe with described little cylinder signal mouth.
According to an embodiment of the present utility model, described three-way pipe is located at the position near described C port.
In above-described embodiment, three-way pipe is arranged on the connecting line of four-way change-over valve and outdoor heat exchanger, its three ports are connected with the C port of four-way change-over valve, the Single port of outdoor heat exchanger, little cylinder signal mouth respectively, then the pressure of the little pressure at cylinder signal mouth place and the C port of four-way change-over valve is suitable.Under this kind of scheme: when air-conditioning system is in refrigeration mode, high pressure refrigerant is discharged from the exhaust outlet of double-cylinder variable-capacity compressor, four-way change-over valve is entered through D port, flow out from C port, thus the refrigerant arriving C port is in high pressure conditions, therefore little cylinder signal mouth place is also high pressure conditions, and now little cylinder is opened, twin-tub runs, and effectively ensures refrigerating capacity and refrigeration; When air-conditioning system is in heating mode, high pressure refrigerant is discharged from the exhaust outlet of double-cylinder variable-capacity compressor, successively through four-way change-over valve, indoor heat exchanger, throttling arrangement, outdoor heat exchanger, arrive the C port of four-way change-over valve, now the refrigerant of C port is through the low pressure refrigerant after throttling arrangement reducing pressure by regulating flow, and therefore little cylinder signal mouth place is also low-pressure state, now little cylinder is closed, vat single cylinder runs, and reaches Effec-tive Function, avoids the object of high frequent start and stop.Preferably, three-way pipe is arranged on the position near C port, the in-cylinder pressure of C port and double-cylinder variable-capacity compressor can be avoided like this to have big difference, thus effectively ensure that the sensitivity that little cylinder is opened and reliability.
According to an embodiment of the present utility model, be communicated with the described Single port of described three-way pipe and the pipeline of described little cylinder signal mouth is copper pipe or steel pipe.
In above-described embodiment, the connecting line arranging three-way pipe and little cylinder signal mouth is copper pipe or steel pipe, is specially steel pipe or the copper pipe of pipe with small pipe diameter; certainly; this section of pipeline also can comprise the pipeline of other materials or size, does not repeat them here, but all should in protection domain of the present utility model.
According to an embodiment of the present utility model, described air-conditioning system also comprises: control device, described control device is electrically connected with described four-way change-over valve, and described control device is used for the mode of operation according to described air-conditioning system, controls the flow direction that described four-way change-over valve switches refrigerant.
In above-described embodiment, control device is electrically connected with four-way change-over valve, is controlled the port connected mode of four-way change-over valve by control device, and then controls the flow direction of refrigerant in four-way change-over valve, the final object realizing the little cylinder start and stop of control.
According to an embodiment of the present utility model, described control device comprises: selecting arrangement, and described selecting arrangement can send selection signal; And controller, described controller is electrically connected with described selecting arrangement and described four-way change-over valve respectively, and described controller receives described selection signal, and controls according to described selection signal the flow direction that described four-way change-over valve switches refrigerant.
In above-described embodiment, control device comprises selecting arrangement and controller, user selects the mode of operation of required air-conditioning system by selecting arrangement, this selection signal is sent to controller by selecting arrangement simultaneously, controller then controls the flow direction of refrigerant in four-way change-over valve according to this selection signal, and then control air-conditioning system carries out freezing or heating.
Additional aspect of the present utility model and advantage become obvious by description part below, or are recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the air-conditioning system described in the utility model embodiment;
Fig. 2 is the structural representation of the air-conditioning system described in another embodiment of the utility model.
Wherein, the corresponding relation in Fig. 1 to Fig. 2 between Reference numeral and component names is:
10 double-cylinder variable-capacity compressors, 11 exhaust outlets, 12 gas returning ports, 13 little cylinder signal mouths, 20 outdoor heat exchangers, 30 throttling arrangements, 40 indoor heat exchangers, 50 four-way change-over valves, 60 three-way pipes.
Detailed description of the invention
In order to more clearly understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from mode described here to implement, and therefore, protection domain of the present utility model is not by the restriction of following public specific embodiment.
Air-conditioning system according to some embodiments of the utility model is described with reference to the accompanying drawings.
As shown in Figure 1 to Figure 2, the air-conditioning system that the utility model provides, comprise double-cylinder variable-capacity compressor 10, outdoor heat exchanger 20, throttling arrangement 30 and indoor heat exchanger 40, double-cylinder variable-capacity compressor 10, outdoor heat exchanger 20, throttling arrangement 30 and indoor heat exchanger 40 to be connected formation refrigerant flow by pipeline, also comprise: four-way change-over valve 50 and three-way pipe 60.
Particularly, four-way change-over valve 50 is connected with gas returning port 12 with the exhaust outlet 11 of double-cylinder variable-capacity compressor 10 respectively; Three-way pipe 60 is located on the pipeline of connection four-way change-over valve 50 and indoor heat exchanger 40, or three-way pipe 60 is located on the pipeline of connection four-way change-over valve 50 and outdoor heat exchanger 20, and the Single port of three-way pipe 60 is connected with the little cylinder signal mouth 13 of double-cylinder variable-capacity compressor 10, to be controlled the pressure size at little cylinder signal mouth 13 place by four-way change-over valve 50, and then the start and stop of the little cylinder of control double-cylinder variable-capacity compressor 10.
The air-conditioning system that the utility model provides, by arranging a three-way pipe 60 on refrigerant flow, and three ports making three-way pipe 60 respectively with four-way change-over valve 50, one in indoor heat exchanger 40 and outdoor heat exchanger 20, the little cylinder signal mouth 13 of double-cylinder variable-capacity compressor 10 is connected, the little cylinder signal mouth 13 of the Single port of four-way change-over valve 50 and double-cylinder variable-capacity compressor 10 is made to be in normal open state, thus make the pressure of coupled logical port on the pressure at little cylinder signal mouth 13 place of double-cylinder variable-capacity compressor 10 and four-way change-over valve 50 suitable, to utilize the pressure size at little cylinder signal mouth 13 place to control the start and stop of the little cylinder of double-cylinder variable-capacity compressor 10, like this, the four-way change-over valve 50 only utilizing air-conditioning system to carry can control the capacity of double-cylinder variable-capacity compressor 10, control procedure is simple, and pipeline is with low cost, thus improve the competitiveness of product in market.
Specifically, under air-conditioning system is in refrigeration or heating mode, when arrive four-way change-over valve 50 this port be high pressure refrigerant time, little cylinder signal mouth 13 place is also high pressure conditions, thus make the exhaust outlet 11 of double-cylinder variable-capacity compressor 10 and little cylinder signal mouth 13 place all be in the suitable high pressure conditions of pressure, now can promote little cylinder to open, realize double-cylinder variable-capacity compressor 10 twin-tub and run; When switch air-conditioning system mode of operation, change refrigerant flow to time, what arrive this port of four-way change-over valve 50 is low pressure refrigerant, thus little cylinder signal mouth 13 place is also low-pressure state, thus make the exhaust outlet 11 of double-cylinder variable-capacity compressor 10 for high pressure conditions and little cylinder signal mouth 13 place is low-pressure state, now can not promote little cylinder to open, realize the isolated operation of double-cylinder variable-capacity compressor 10 vat.Like this, by controlling the operational mode of air-conditioning system, being switched the flow direction of refrigerant, can control the start and stop of little cylinder by four-way change-over valve 50, thus make controlling functions simple, pipeline is controlled cost low.
In an embodiment of the present utility model, as shown in Figure 1, four-way change-over valve 50 comprises D port, E port, S port and C port, D port is connected with gas returning port 12 with exhaust outlet 11 respectively with S port, E port and C port are connected with the Single port of outdoor heat exchanger 20 with the Single port of indoor heat exchanger 40 respectively, and E port is connected by three-way pipe 60 with little cylinder signal mouth 13.
Preferably, three-way pipe 60 is located at the position near E port.
In this embodiment, three-way pipe 60 is arranged on four-way change-over valve 50 with on the connecting line of indoor heat exchanger 40, its three ports are connected with the E port of four-way change-over valve 50, the Single port of indoor heat exchanger 40, little cylinder signal mouth 13 respectively, then the pressure of the little pressure at cylinder signal mouth 13 place and the E port of four-way change-over valve 50 is suitable.Under this kind of scheme: when air-conditioning system is in heating mode, high pressure refrigerant is discharged from the exhaust outlet 11 of double-cylinder variable-capacity compressor 10, four-way change-over valve 50 is entered through D port, flow out from E port, thus the refrigerant arriving E port is in high pressure conditions, therefore little cylinder signal mouth 13 place is also high pressure conditions, now little cylinder is opened, and twin-tub runs; When air-conditioning system is in refrigeration mode, high pressure refrigerant is discharged from the exhaust outlet 11 of double-cylinder variable-capacity compressor 10, successively through four-way change-over valve 50, outdoor heat exchanger 20, throttling arrangement 30, indoor heat exchanger 40, arrive the E port of four-way change-over valve 50, now the refrigerant of E port is through the low pressure refrigerant after throttling arrangement 30 reducing pressure by regulating flow, therefore little cylinder signal mouth 13 place is also low-pressure state, now little cylinder is closed, vat single cylinder runs, thus the flow direction of refrigerant is switched by four-way change-over valve 50, realize the object controlling little cylinder start and stop.Preferably, three-way pipe 60 is arranged on the position near E port, the in-cylinder pressure of E port and double-cylinder variable-capacity compressor 10 can be avoided like this to have big difference, thus effectively ensure that the sensitivity that little cylinder is opened and reliability.
In another embodiment of the present utility model, as shown in Figure 2, four-way change-over valve 50 comprises D port, E port, S port and C port, D port is connected with gas returning port 12 with exhaust outlet 11 respectively with S port, E port and C port are connected with the Single port of outdoor heat exchanger 20 with the Single port of indoor heat exchanger 40 respectively, and C port is connected by three-way pipe 60 with little cylinder signal mouth 13.
Preferably, three-way pipe 60 is located at the position near C port.
In this embodiment, three-way pipe 60 is arranged on four-way change-over valve 50 with on the connecting line of outdoor heat exchanger 20, its three ports are connected with the C port of four-way change-over valve 50, the Single port of outdoor heat exchanger 20, little cylinder signal mouth 13 respectively, then the pressure of the little pressure at cylinder signal mouth 13 place and the C port of four-way change-over valve 50 is suitable.Under this kind of scheme: when air-conditioning system is in refrigeration mode, high pressure refrigerant is discharged from the exhaust outlet 11 of double-cylinder variable-capacity compressor 10, four-way change-over valve 50 is entered through D port, flow out from C port, thus the refrigerant arriving C port is in high pressure conditions, therefore little cylinder signal mouth 13 place is also high pressure conditions, now little cylinder is opened, and twin-tub runs; When air-conditioning system is in heating mode, high pressure refrigerant is discharged from the exhaust outlet 11 of double-cylinder variable-capacity compressor 10, successively through four-way change-over valve 50, indoor heat exchanger 40, throttling arrangement 30, outdoor heat exchanger 20, arrive the C port of four-way change-over valve 50, now the refrigerant of C port is through the low pressure refrigerant after throttling arrangement 30 reducing pressure by regulating flow, therefore little cylinder signal mouth 13 place is also low-pressure state, now little cylinder is closed, vat single cylinder runs, thus the flow direction of refrigerant is switched by four-way change-over valve 50, realize the object controlling little cylinder start and stop.Preferably, three-way pipe 60 is arranged on the position near C port, the in-cylinder pressure of C port and double-cylinder variable-capacity compressor 10 can be avoided like this to have big difference, thus effectively ensure that the sensitivity that little cylinder is opened and reliability.
In an embodiment of the present utility model, the connection Single port of three-way pipe 60 and the pipeline of little cylinder signal mouth 13 are copper pipe or steel pipe.
In this embodiment, arranging three-way pipe 60 with the connecting line of little cylinder signal mouth 13 is copper pipe or steel pipe, is specially steel pipe or the copper pipe of pipe with small pipe diameter; certainly; this section of pipeline also can comprise the pipeline of other materials or size, does not repeat them here, but all should in protection domain of the present utility model.
In an embodiment of the present utility model, air-conditioning system also comprises: control device (not shown), control device is electrically connected with four-way change-over valve 50, and control device is used for the mode of operation according to air-conditioning system, controls the flow direction that four-way change-over valve 50 switches refrigerant.
In this embodiment, control device is electrically connected with four-way change-over valve 50, is controlled the port connected mode of four-way change-over valve 50 by control device, and then controls the flow direction of refrigerant in four-way change-over valve 50, the final object realizing the little cylinder start and stop of control.
In an embodiment of the present utility model, control device comprises: selecting arrangement and controller, and selecting arrangement can send selection signal; Controller is electrically connected with selecting arrangement and four-way change-over valve 50 respectively, and controller receives selects signal, and according to the flow direction selecting signal control four-way change-over valve 50 to switch refrigerant.
In this embodiment, control device comprises selecting arrangement and controller, user selects the mode of operation of required air-conditioning system by selecting arrangement, this selection signal is sent to controller by selecting arrangement simultaneously, controller then controls the flow direction of refrigerant in four-way change-over valve 50 according to this selection signal, and then control air-conditioning system carries out freezing or heating.
In sum, the air-conditioning system that the utility model provides, by arranging a three-way pipe on refrigerant flow, and three ports making three-way pipe respectively with four-way change-over valve, one in indoor heat exchanger and outdoor heat exchanger, the little cylinder signal mouth of double-cylinder variable-capacity compressor is connected, the little cylinder signal mouth of the Single port of four-way change-over valve and double-cylinder variable-capacity compressor is made to be in normal open state, thus make the pressure of coupled logical port on the pressure at little cylinder signal mouth place and four-way change-over valve suitable, to utilize the pressure size at little cylinder signal mouth place to control the start and stop of the little cylinder of double-cylinder variable-capacity compressor, like this, the four-way change-over valve only utilizing air-conditioning system to carry can control the capacity of double-cylinder variable-capacity compressor, control procedure is simple, and pipeline is with low cost, thus improve the competitiveness of product in market.Specifically, under air-conditioning system is in refrigeration or heating mode, when arrive four-way change-over valve this port be high pressure refrigerant time, little cylinder signal mouth place is also high pressure conditions, thus make the exhaust outlet of double-cylinder variable-capacity compressor and little cylinder signal mouth place all be in the suitable high pressure conditions of pressure, now can promote little cylinder to open, realize double-cylinder variable-capacity compressor twin-tub and run; When switch air-conditioning system mode of operation, change refrigerant flow to time, what arrive this port of four-way change-over valve is low pressure refrigerant, thus little cylinder signal mouth place is also low-pressure state, thus make that the exhaust outlet of double-cylinder variable-capacity compressor is high pressure conditions and little cylinder signal mouth place is low-pressure state, now can not promote little cylinder to open, realize the isolated operation of double-cylinder variable-capacity compressor vat.Like this, by controlling the operational mode of air-conditioning system, being switched the flow direction of refrigerant, can control the start and stop of little cylinder by four-way change-over valve, thus make controlling functions simple, pipeline is controlled cost low.
In description of the present utility model, unless otherwise prescribed or illustrate, term " connections ", " being connected " etc. all should be interpreted broadly, and such as, " connection " can be fixedly connected with, and also can be removably connect, or connects integratedly, or be electrically connected; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. an air-conditioning system, comprise double-cylinder variable-capacity compressor, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, described double-cylinder variable-capacity compressor, described outdoor heat exchanger, described throttling arrangement and described indoor heat exchanger to be connected formation refrigerant flow by pipeline, it is characterized in that, also comprise:
Four-way change-over valve, described four-way change-over valve is connected with gas returning port with the exhaust outlet of described double-cylinder variable-capacity compressor respectively; With
Three-way pipe, described three-way pipe is located on the pipeline of the described four-way change-over valve of connection and described indoor heat exchanger, or described three-way pipe is located on the pipeline of the described four-way change-over valve of connection and described outdoor heat exchanger, and the Single port of described three-way pipe is connected with the little cylinder signal mouth of described double-cylinder variable-capacity compressor, to be controlled the pressure size at described little cylinder signal mouth place by described four-way change-over valve, and then control the start and stop of little cylinder of described double-cylinder variable-capacity compressor.
2. air-conditioning system according to claim 1, is characterized in that,
Described four-way change-over valve comprises D port, E port, S port and C port, described D port is connected with described gas returning port with described exhaust outlet respectively with described S port, described E port is connected with the Single port of described outdoor heat exchanger with the Single port of described indoor heat exchanger respectively with described C port, and described E port is connected by described three-way pipe with described little cylinder signal mouth.
3. air-conditioning system according to claim 2, is characterized in that,
Described three-way pipe is located at the position near described E port.
4. air-conditioning system according to claim 1, is characterized in that,
Described four-way change-over valve comprises D port, E port, S port and C port, described D port is connected with described gas returning port with described exhaust outlet respectively with described S port, described E port is connected with the Single port of described outdoor heat exchanger with the Single port of described indoor heat exchanger respectively with described C port, and described C port is connected by described three-way pipe with described little cylinder signal mouth.
5. air-conditioning system according to claim 4, is characterized in that,
Described three-way pipe is located at the position near described C port.
6. air-conditioning system according to claim 1, is characterized in that,
Be communicated with the described Single port of described three-way pipe and the pipeline of described little cylinder signal mouth is copper pipe or steel pipe.
7. air-conditioning system according to any one of claim 1 to 6, is characterized in that, also comprises:
Control device, described control device is electrically connected with described four-way change-over valve, and described control device is used for the mode of operation according to described air-conditioning system, controls the flow direction that described four-way change-over valve switches refrigerant.
8. air-conditioning system according to claim 7, is characterized in that, described control device comprises:
Selecting arrangement, described selecting arrangement can send selection signal; With
Controller, described controller is electrically connected with described selecting arrangement and described four-way change-over valve respectively, and described controller receives described selection signal, and controls according to described selection signal the flow direction that described four-way change-over valve switches refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637092.4U CN204880393U (en) | 2015-08-21 | 2015-08-21 | Air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520637092.4U CN204880393U (en) | 2015-08-21 | 2015-08-21 | Air conditioner system |
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| Publication Number | Publication Date |
|---|---|
| CN204880393U true CN204880393U (en) | 2015-12-16 |
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| CN201520637092.4U Active CN204880393U (en) | 2015-08-21 | 2015-08-21 | Air conditioner system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016807A (en) * | 2016-05-18 | 2016-10-12 | 广东美芝制冷设备有限公司 | Refrigerating plant |
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2015
- 2015-08-21 CN CN201520637092.4U patent/CN204880393U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016807A (en) * | 2016-05-18 | 2016-10-12 | 广东美芝制冷设备有限公司 | Refrigerating plant |
| CN106016807B (en) * | 2016-05-18 | 2019-08-02 | 广东美芝制冷设备有限公司 | Refrigerating plant |
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