CN106766422A

CN106766422A - Air-conditioner

Info

Publication number: CN106766422A
Application number: CN201611113804.8A
Authority: CN
Inventors: 廖四清; 陈海群; 曾令华
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2016-12-06
Filing date: 2016-12-06
Publication date: 2017-05-31

Abstract

The present invention discloses a kind of air-conditioner, including：Compressor, compressor includes the first cylinder and the second cylinder；Outdoor heat exchanger and indoor heat exchanger, one of them in second end of outdoor heat exchanger and the second end of indoor heat exchanger is connected with the second exhaust passage of the second cylinder, and another in the second end of outdoor heat exchanger and the second end of indoor heat exchanger is connected with the first air intake passage of the first cylinder；First refrigerant flow is connected between the first exhaust passage of the first cylinder and the second air intake passage of the second cylinder；One of them in second end of outdoor heat exchanger and the second end of indoor heat exchanger is connected with the first end of the second refrigerant flow, and the second end of the second refrigerant flow is connected with first exhaust passage；3rd refrigerant flow, the first end of the 3rd refrigerant flow is connected with the second air intake passage；Control valve group part, control valve group part can be used to control the break-make of the first refrigerant flow to the 3rd refrigerant flow.Air-conditioner of the invention, reduces the design difficulty of compressor.

Description

Air-conditioner

Technical field

The present invention relates to refrigeration technology field, more particularly, to a kind of air-conditioner.

Background technology

In correlation technique, the transfiguration knot design difficulty of compressor is big, complex structure, and is unfavorable for the work effect of compressor The raising of rate.

The content of the invention

It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention is carried Go out a kind of air-conditioner, the air-conditioner can realize that compressor switches between two-stage transfiguration compression or twin-tub transfiguration compression, structure letter It is single, reliable, and be conducive to improving the operating efficiency of compressor.

Air-conditioner according to embodiments of the present invention, including：Compressor, the compressor includes the first cylinder and the second gas Cylinder, first cylinder has first exhaust passage and the first air intake passage, second cylinder have second exhaust passage and Second air intake passage；Outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger and the indoor heat exchanger First end is connected, and first throttle element is in series between the outdoor heat exchanger and the indoor heat exchanger, and the outdoor is changed One of them second exhaust passage with second cylinder in second end of hot device and the second end of the indoor heat exchanger It is connected, another and first cylinder in the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger First air intake passage is connected；First refrigerant flow, first refrigerant flow is connected to the first exhaust passage and described Between two air intake passages；Second refrigerant flow, in the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger It is described one of them be connected with the first end of second refrigerant flow, the second end of second refrigerant flow and described One exhaust passage is connected；3rd refrigerant flow, the first end of the 3rd refrigerant flow is connected with second air intake passage, institute The 3rd refrigerant flow is stated to be configured to for the refrigerant in the refrigeration circuit outside the compressor to be guided to second air intake passage； Control valve group part, the control valve group part can be used to controlling first refrigerant flow to the 3rd refrigerant flow break-make with So that the compressor realizes two-stage transfiguration compression or twin-tub transfiguration compression.

Air-conditioner according to embodiments of the present invention, by setting the first refrigerant flow to the 3rd refrigerant flow, and using control Valve module processed controls the break-make of the first refrigerant flow to the 3rd refrigerant flow, so as to the two-stage transfiguration for realizing compressor is compressed or double Cylinder transfiguration is compressed, and this not only avoids the design to the capacity-variable structure of itself of compressor, reduces the design difficulty of compressor, The structure of compressor is simplified, and is conducive to improving the operating efficiency of compressor, so as to improve the refrigeration or system of air-conditioner The thermal efficiency.

Some embodiments of the invention, the control valve group part includes the first control valve to the 3rd control valve, described First control valve is connected on first refrigerant flow, and the second control valve is connected on second refrigerant flow, institute The 3rd control valve is stated to be connected on the 3rd refrigerant flow.

Some embodiments of the invention, the control valve group part includes the 4th control valve and the first switching valve, described First switching valve has a first port to the 3rd port, the first port can with the second port and the 3rd port in A conducting, first switching valve is connected on first refrigerant flow, the first port and second air-breathing Passage is connected, and the second port is connected with the first exhaust passage, the first end of the 3rd refrigerant flow and described the Three ports are connected, and the 4th control valve is connected on second refrigerant flow.

Some embodiments of the invention, the control valve group part includes the 5th control valve and the second switching valve, described Second switching valve is open with the first opening to the 3rd, during first opening can be open with the described second opening and the described 3rd A conducting, second switching valve is connected on first refrigerant flow, and first opening and the first row Gas passage be connected, it is described second opening is connected with second air intake passage, the second end of second refrigerant flow with it is described 3rd opening is connected, and the 5th control valve is connected on the 3rd refrigerant flow.

Some embodiments of the invention, the control valve group part includes the 3rd switching valve and the 4th switching valve, described 3rd switching valve has the first valve port to the 3rd valve port, and first valve port can be with the second valve port and the 3rd valve port Individual conducting, the 4th switching valve has the first conducting orifice to the 3rd conducting orifice, and first conducting orifice can be with the second conducting orifice Connected with the 3rd conducting orifice, the 3rd switching valve and the 4th switching valve are connected on first refrigerant On stream, first valve port is connected with the first exhaust passage, and the 3rd valve port is connected with second conducting orifice, institute State the first conducting orifice to be connected with second air intake passage, the second end phase of second valve port and second refrigerant flow Even, the 3rd conducting orifice is connected with the first end of the 3rd refrigerant flow.

Some embodiments of the invention, when one of them in the outdoor heat exchanger and the indoor heat exchanger is same When being connected with the second exhaust passage of second cylinder and the first end of second refrigerant flow, the outdoor heat exchanger With another the first air intake passage and the 3rd refrigerant flow simultaneously with first cylinder in the indoor heat exchanger The second end be connected.

Some embodiments of the invention, air-conditioner also includes flash vessel, and the flash vessel is connected on the first segment Between the first end of fluid element and the indoor heat exchanger, the flash vessel has first interface to the 3rd interface, described first Interface is connected with the first throttle element, and the second interface is connected with the first end of the indoor heat exchanger, and the described 3rd Interface is connected with the second end of the 3rd refrigerant flow.

Specifically, the second restricting element is in series between the second interface and the indoor heat exchanger.

Some embodiments of the invention, air-conditioner also includes supercooling apparatus, and the supercooling apparatus are connected on the room Between the first end of the first end of external heat exchanger and the indoor heat exchanger, and the supercooling apparatus include the first of mutually heat exchange Stream and second flow path, the first end of the first end of the first flow path and the outdoor heat exchanger and the indoor heat exchanger One of them in first end is connected, the second end of the first flow path and the first end of the outdoor heat exchanger and the interior Another in the first end of heat exchanger is connected, the second end of the first flow path and the outdoor heat exchanger first end and Described in the first end of the indoor heat exchanger is in series with the first throttle element between another, the second flow path First end is connected to the first end of the first flow path with the first end of the outdoor heat exchanger and institute by the 3rd restricting element Described in the first end of indoor heat exchanger is stated between one of them, the second end of the second flow path and the 3rd refrigerant stream Second end on road is connected.

Some embodiments of the invention, air-conditioner also includes commutation component, and the commutation component has the first connection Mouthful to the 4th connector, first connector and the second exhaust passage and the first end phase of second refrigerant flow Even, second connector is connected with the second end of the outdoor heat exchanger, the 3rd connector and the indoor heat exchanger The second end be connected, the 4th connector be connected with first air intake passage or simultaneously with first air intake passage and institute The second end for stating the 3rd refrigerant flow is connected.

Some embodiments of the invention, the delivery space of first cylinder is V1, the exhaust of second cylinder Volume is V2, the V1, and V2 meets：0.4<V2/V1<0.9.

Some embodiments of the invention, air-conditioner also includes the first electric capacity and the second electric capacity, first electric capacity Capacity is more than the capacity of second electric capacity, when the compressor twin-tub transfiguration is compressed, first electric capacity or described first Electric capacity and the motor that second electric capacity is the compressor are powered, when the compressor two-stage transfiguration is compressed, described first Electric capacity or the motor that second electric capacity is the compressor are powered.

Specifically, the capacity of first electric capacity is C1, and the capacity of second electric capacity is C2, and the C1, C2 meets： 0.2<C2/(C1+C2)<0.8。

Specifically, the motor has operation end, common port and start end, the first end of first electric capacity and described The first end of two electric capacity is connected and forms first node, first node zero line side respectively with the power supply and the operation End is connected, and the second end of second electric capacity is connected with the second end of first electric capacity by first switch and forms second section Point, the Section Point is connected with the start end of the motor, and the zero line of the power supply is connected with the common port.

Specifically, the second end of first electric capacity is connected to the Section Point by second switch.

Brief description of the drawings

Fig. 1 is the schematic diagram of air-conditioner according to some embodiments of the invention；

Fig. 2 is the schematic diagram of the air-conditioner according to other embodiments of the invention；

Fig. 3 is the schematic diagram of the air-conditioner according to yet other embodiments of the invention；

Fig. 4 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Fig. 5 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Fig. 6 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Fig. 7 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Fig. 8 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Fig. 9 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Figure 10 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Figure 11 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Figure 12 is the schematic diagram of the air-conditioner according to still other embodiments of the present invention；

Figure 13 is the first electric capacity and the second electric capacity and power supply and the motor of compressor according to some embodiments of the invention Circuit controling drawing；

Figure 14 is the first electric capacity and the second electric capacity and power supply and the motor of compressor according to other embodiments of the invention Circuit controling drawing.

Reference：

Air-conditioner 1000；Compressor 10；First cylinder 101；First exhaust passage 1011；First air intake passage 1012；The Two cylinders 102；Second exhaust passage 1021；Second air intake passage 1022；First electric capacity 103；Second electric capacity 104；Motor 105； Operation end 1051；Common port 1052；Start end 1053；First node 1054；Section Point 1055；First switch 1056；Second Switch 1057；Outdoor heat exchanger 20；Indoor heat exchanger 30；First throttle element 40；First refrigerant flow 50；Second refrigerant flow 60；3rd refrigerant flow 70；Control valve group part 80；First control valve 801；Second control valve 802；3rd control valve 803；4th Control valve 804；First switching valve 805；First port 8051；Second port 8052；3rd port 8053；5th control valve port 806；Second switching valve 807；First opening 8071；Second mouthful 8072；3rd opening 8073；3rd switching valve 808；First valve port 8081；Second valve port 8082；3rd valve port 8083；4th switching valve 809；First conducting orifice 8091；Second conducting orifice 8092；The Three conducting orifices 8093；Flash vessel 90；First interface 901；Second interface 902；3rd interface 903；Second restricting element 100；Cross Device for cooling 110；First flow path 1101；Second flow path 1102；3rd restricting element 1103；Commutation component 120；First connector a； Second connector b；3rd connector c；4th connector d；Second commutation component 130；First connected entrance e；Second connected entrance f； Third connecting mouthful g；4th connected entrance h；

Power supply 2000；Zero line side 2001；Zero line 2002.

Specific embodiment

Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to The embodiment of Description of Drawings is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.

In the description of the invention, it is to be understood that term " on ", D score, the orientation or position of the instruction such as "left", "right" The relation of putting is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, rather than Indicate or imply signified device or element and must have specific orientation, with specific azimuth configuration and operation, therefore can not It is interpreted as limitation of the present invention.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In the description of the invention, " multiple " is meant that at least two, such as two, three It is individual etc., unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects Connect, or electrically connect or can communicate each other；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be with Be two element internals connection or two interaction relationships of element, unless otherwise clearly restriction.For this area For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be as the case may be understood.

Air-conditioner 1000 according to embodiments of the present invention is described below with reference to Fig. 1-Figure 14, the air-conditioner 1000 can be used to adjust Section indoor environment temperature, for example, the air-conditioner 1000 can be used to freeze to indoor environment when being single cold type air-conditioner, the air-conditioner 1000 can heat or freeze when being heating and air conditioner to indoor environment.

As shown in Fig. 1-Figure 12, air-conditioner 1000 according to embodiments of the present invention can include compressor 10, outdoor heat exchange Device 20, indoor heat exchanger 30, first throttle element 40, the first refrigerant flow 50, the second refrigerant flow 60, the 3rd refrigerant flow 70 With control valve group part 80.

Specifically, as shown in Fig. 1-Figure 12, compressor 10 includes the first cylinder 101 and the second cylinder 102.First cylinder 101 have an air intake passage 1012 of first exhaust passage 1011 and first, and the second cylinder 102 has second exhaust passage 1021 and the Two air intake passages 1022.For example, can be provided with two exhaust outlets and two air entries on the housing of compressor 10, compressor 10 is wrapped The first cylinder 101 and the second cylinder 102 are included, the first cylinder 101 has the air intake passage 1012 of first exhaust passage 1011 and first, First exhaust passage 1011 is connected with one of exhaust outlet, and the first air intake passage 1012 is connected with one of air entry, the Two cylinders 102 have the air intake passage 1022 of second exhaust passage 1021 and second, and second exhaust passage 1021 is vented with another Mouth is connected, and the second air intake passage 1022 is connected with another air entry, and thus, refrigerant can pass through from one of air entry First air intake passage 1012 is entered into the first cylinder 101, after refrigerant is compressed in the first cylinder 101, can be by first row Gas passage 1011 simultaneously discharges the first cylinder 101 by one of exhaust outlet, and refrigerant can be passed through from described another air entry The second air intake passage 1022 is crossed to enter into the second cylinder 102, after refrigerant is compressed in the second cylinder 102, can be by second Simultaneously the second cylinder 102 is discharged by described another exhaust outlet in exhaust passage 1021.

Alternatively, the first cylinder 101 and the second cylinder 102 can arrange in above-below direction.For example.As shown in Fig. 1-Figure 12, First cylinder 101 is located at the lower section of the second cylinder 102, or, in further embodiments, the second cylinder 102 is located at the first gas The lower section of cylinder 101.

As shown in Fig. 1-Figure 12, the first end (for example, the right-hand member shown in Fig. 1-Figure 12) of outdoor heat exchanger 20 and interior The first end (for example, the right-hand member shown in Fig. 1-Figure 12) of heat exchanger 30 is connected, and outdoor heat exchanger 20 and indoor heat exchanger 30 Between be in series with first throttle element 40, first throttle element 40 can carry out reducing pressure by regulating flow, outdoor heat exchange to flowing through its refrigerant Second end (for example, the left end shown in Fig. 1-Figure 12) of device 20 and the second end of indoor heat exchanger 30 are (for example, in Fig. 1-Figure 12 The left end for showing) in one of them be connected with the second exhaust passage 1021 of the second cylinder 102, the second of outdoor heat exchanger 20 Another in second end of end and indoor heat exchanger 30 is connected with the first air intake passage 1012 of the first cylinder 101.

Specifically, when air-conditioner 1000 is single cold type air-conditioner, as shown in figs 1 to 6, the of outdoor heat exchanger 20 Two ends (for example, the left end shown in Fig. 1-Figure 12) are connected with the second exhaust passage 1021 of the second cylinder 102, indoor heat exchanger 30 the second end is connected with the first air intake passage 1012 of the first cylinder 101.When air-conditioner 1000 is heating and air conditioner 1000 When, as shown in Fig. 7-Figure 12, air-conditioner 1000 also includes commutation component 120, and commutation component 120 has the first connector a to the Four connector d, the first connector a can be connected with one of in the second connector b and the 3rd connector c, the 4th connector d Can be connected with another in the second connector b and the 3rd connector c, that is to say, that when the first connector a and the second connector When b is connected, the 3rd connector c is connected with the 4th connector d, and when the first connector a is connected with the 3rd connector c, the 4th connects Interface d is connected with the second connector b.For example, commutation component 120 be four-way valve, when four-way valve power off, the first connector a and Second connector b is connected, and the 3rd connector c is connected with the 4th connector d, when four-way valve is powered, the first connector a and the 3rd Connector c is connected, and the second connector b is connected with the 4th connector d.First connector a is connected with second exhaust passage 1021, the Two connector b are connected with the second end of outdoor heat exchanger 20, and the 3rd connector c is connected with the second end of indoor heat exchanger 30, the Four connector d are connected with the first air intake passage 1012.So as to by the commutation of the component 120 that commutates, realize air-conditioner 1000 in system Switching between chill formula and heating mode.

First refrigerant flow 50 is connected between the air intake passage 1022 of first exhaust passage 1011 and second, outdoor heat exchanger One of them first end with the second refrigerant flow 60 in 20 the second end and the second end of indoor heat exchanger 30 is (for example, figure The upper end shown in 1- Figure 12) it is connected, second end (for example, the lower end shown in Fig. 1-Figure 12) of the second refrigerant flow 60 and the One exhaust passage 1011 is connected.For example, when air-conditioner 1000 is single cold type air-conditioner, the second end of outdoor heat exchanger 20 and the The first end of two refrigerant flows 60 is connected, that is to say, that when air-conditioner 1000 is single cold type air-conditioner, outdoor heat exchanger 20 Second end is connected with the first end of the refrigerant flow 60 of second exhaust passage 1021 and second of the second cylinder 102 simultaneously.Or, when When air-conditioner 1000 is heating and air conditioner, above-mentioned first connector a is connected with the first end of the second refrigerant flow 60, that is, Say, when air-conditioner 1000 be heating and air conditioner when, the first connector a simultaneously with the refrigerant stream of second exhaust passage 1021 and second The first end on road 60 is connected.

The first end of the 3rd refrigerant flow 70 is connected with the second air intake passage 1022, the 3rd refrigerant flow 70 be configured to by The refrigerant in refrigeration circuit outside compressor 10 is guided to the second air intake passage 1022.For example, when air-conditioner 1000 is single cold type During air-conditioner 1000, the second end of the 3rd refrigerant flow 70 is connected with will be from indoor heat exchanger with the second end of indoor heat exchanger 30 The refrigerant of 30 outflows is guided to the second air intake passage 1022, that is to say, that in the embodiment, when air-conditioner 1000 is empty single cold type When adjusting device, the second end of indoor heat exchanger 30 simultaneously with the first air intake passage 1012 of the first cylinder 101 and the 3rd refrigerant flow 70 the second end is connected.Certainly, when air-conditioner 1000 is single cold type air-conditioner 1000, the second end of the 3rd refrigerant flow 70 is also Can be connected on other refrigerant flows in addition to the second end of indoor heat exchanger 30 outside compressor 10.Or work as air-conditioning When device 1000 is heating and air conditioner, the second end of the 3rd refrigerant flow 70 is connected with above-mentioned 4th connector d, will be from the 4th The refrigerant of connector d outflows is guided to second air intake passage 1022, that is to say, that in this embodiment, work as air-conditioner 1000 be heating and air conditioner 1000 when, the 4th connector d can simultaneously with the first air intake passage 1012 and the 3rd refrigerant flow 70 The second end be connected.Certainly, the invention is not restricted to this, the first air-breathing that the 4th connector d can also be only with the first cylinder 101 is led to Road 1012 is connected, i.e. the second end of the 3rd refrigerant flow 70 may also connect to outside compressor 10 except the 4th connector d with On other outer refrigerant flows.

Control valve group part 80 can be used to control the break-make of the refrigerant flow 70 of the first refrigerant flow 50 to the 3rd to cause compression Machine 10 realizes two-stage transfiguration compression or twin-tub transfiguration compression.Here, it is necessary to explanation, two-stage transfiguration compression refers to that refrigerant can be according to Secondary to enter the first cylinder 101 and the second cylinder 102, refrigerant realizes two second compressions in two cylinders, and specifically, refrigerant can It is introduced into in the first cylinder 101 by the first air intake passage 1012 of the first cylinder 101, refrigerant is real in the first cylinder 101 After existing first second compression, discharged from the first exhaust passage 1011 of the first cylinder 101, and the is flowed to by the first refrigerant flow 50 Second air intake passage 1022 of two cylinders 102, refrigerant realizes the second second compression in the second cylinder 102, then from the second cylinder 102 second exhaust passage 1021 is discharged.Twin-tub transfiguration compression refers to that refrigerant has respectively entered the first cylinder 101 and the second cylinder 102, and compressed independently of one another in the first cylinder 101 and the second cylinder 102, refrigerant is compressed in the first cylinder 101 Afterwards, the second refrigerant flow 60, refrigerant quilt in the second cylinder 102 are expelled to from the first exhaust passage 1011 of the first cylinder 101 After compression, discharged from the second exhaust passage 1021 of the second cylinder 102.

In sum, air-conditioner 1000 according to embodiments of the present invention, it is cold by setting the first refrigerant flow 50 to the 3rd Matchmaker's stream 70, and the break-make of the refrigerant flow 70 of the first refrigerant flow 50 to the 3rd is controlled using control valve group part 80, so as to realize Two-stage transfiguration compression or twin-tub the transfiguration compression of compressor 10, this is not only avoided to the capacity-variable structure of itself of compressor 10 Design, reduces the design difficulty of compressor 10, simplifies the structure of compressor 10, and is conducive to improving the work of compressor 10 Make efficiency, so as to improve the refrigeration or heating efficiency of air-conditioner 1000.

Alternatively, first throttle element 40 is capillary, electric expansion valve or heating power expansion valve.

Some embodiments of the invention, as shown in Fig. 1-Fig. 3 and Fig. 7-Fig. 9, control valve group part 80 includes first The control control valve 803 of valve 801 to the 3rd, the first control valve 801 is connected on the first refrigerant flow 50, and the second control valve 802 is gone here and there It is associated on the second refrigerant flow 60, the 3rd control valve 803 is connected on the 3rd refrigerant flow 70.Specifically, in the first control Valve 801 is closed, and when the second control control valve 803 of valve 802 and the 3rd is opened, a part of refrigerant can enter from the first air intake passage 1012 Enter in the first cylinder 101, another part refrigerant can be entered into from the 3rd refrigerant flow 70 and by the second air intake passage 1022 In second cylinder 102, this two parts refrigerant independent compression, subsequent first gas in the first cylinder 101 and the second cylinder 102 respectively The refrigerant compressed in cylinder 101 flows to the second refrigerant flow 60 from first exhaust passage 1011, is compressed in the second cylinder 102 Refrigerant is discharged from second exhaust passage 1021, so as to realize the twin-tub transfiguration compression of compression；When the first control valve 801 is opened, the When the two control control valves 803 of valve 802 and the 3rd are closed, refrigerant can only enter into the first cylinder 101 from the first air intake passage 1012 After interior refrigerant is compressed in the first cylinder 101, the first refrigerant flow is entered from the first exhaust passage 1011 of the first cylinder 101 50, subsequent refrigerant is entered in the second cylinder 102 by the second air intake passage 1022, refrigerant in the second cylinder 102 again by After compression, discharged from second exhaust passage 1021, so as to the two-stage transfiguration for realizing compressor 10 is compressed.Alternatively, the first control The control valve 803 of valve 801 to the 3rd is magnetic valve.It is understood that air-conditioner 1000 can also include controller (not shown), Controller can be used to control first to control valve 801 to the 3rd to control the break-make of valve 803.

In some embodiments of the invention, as shown in Fig. 4 and Figure 10, control valve group part 80 includes the 4th control valve 804 With the first switching valve 805, the first switching valve 805 has a port 8053 of first port 8051 to the 3rd, and first port 8051 can be with A conducting in the port 8053 of second port 5052 and the 3rd, that is to say, that when first port 8051 and second port 5052 During conducting, first port 8051 is not turned on the 3rd port 8053, when first port 8051 and the 3rd port 8053 turn on, the Single port 8051 is not turned on second port 5052.First switching valve 805 is connected on the first refrigerant flow 50, first port 8051 are connected with the second air intake passage 1022, and second port 5052 is connected with first exhaust passage 1011, the 3rd port 8053 with The first end (for example, Fig. 4 and the left end shown in Figure 10) of the 3rd refrigerant flow 70 is connected, and the 4th control valve 804 is connected on the With the break-make of the second refrigerant flow 60 of control on two refrigerant flows 60.When first port 8051 and the 3rd port 8053 turn on and When four control valves 804 are opened, a part of refrigerant enters into the first cylinder by the first air intake passage 1012 of the first cylinder 101 In 101, the subsequent part refrigerant flows to the second refrigerant flow 60 after being discharged from the first exhaust passage 1011 of the first cylinder 101, Another part refrigerant flows to the second cylinder by the 3rd refrigerant flow 70 by the 3rd port 8053 and first port 8051 102 the second air intake passage 1022, after the part refrigerant is compressed in the second cylinder 102, from the row of second exhaust passage 1021 Go out, so as to the twin-tub transfiguration for realizing compressor 10 is compressed；When the 4th control valve 804 is closed and first port 8051 and second port During 5052 conducting, refrigerant is flowed into the first cylinder 101 from first air intake passage 1012 of the first cylinder 101, then from first row Gas passage 1011 is discharged, and the second cylinder is flowed to by second port 5052 and first port 8051 (flowing through the first refrigerant flow 50) 102 the second air intake passage 1022, refrigerant is compressed again in the second cylinder 102, then from the second of the second cylinder 102 Exhaust passage 1021 is discharged, so as to the two-stage transfiguration for realizing compressor 10 is compressed.Alternatively, the 4th control valve 804 is magnetic valve, First switching valve 805 is three-way diverter valve.It is understood that air-conditioner 1000 can also include controller, controller can use The commutation of first switching valve 805 of break-make and control of valve 804 is controlled in control the 4th.

In other embodiments of the invention, as shown in Fig. 5 and Figure 11, control valve group part 80 includes the 5th control valve 806 and second switching valve 807, the second switching valve 807 has the opening 8073 of the first opening 8071 to the 3rd, and the first opening 8071 can With a conducting in the second opening 8072 and the 3rd opening 8073, that is to say, that when the first opening 8071 and the second opening During 8072 conducting, the first opening 8071 is not turned on the 3rd opening 8073, when the first opening 8071 and the 3rd opening 8073 turn on When, the first opening 8071 is not turned on the second opening 8072.Second switching valve 807 is connected on the first refrigerant flow 50, and the One opening 8071 connects with first exhaust passage 1011, and the second opening 8072 is connected with the second air intake passage 1022, the second refrigerant Second end of stream 60 8073 is connected with the 3rd opening, and the 5th controls valve 806 to be connected on the 3rd refrigerant flow 70 to control the The break-make of three refrigerant flows 70.When the first opening 8071 and the conducting of the 3rd opening 8073 and the 5th control valve 806 are opened, one Point refrigerant is entered into the first cylinder 101 by the first air intake passage 1012 of the first cylinder 101, and the subsequent part refrigerant is from the The first exhaust passage 1011 of one cylinder 101 flows to the second refrigerant stream after discharging by the first opening 8071 and the 3rd opening 8073 Road 60, another part refrigerant flows to the second air intake passage 1022 of the second cylinder 102 by the 3rd refrigerant flow 70, and the part is cold After matchmaker is compressed in the second cylinder 102, discharged from second exhaust passage 1021, so as to realize the twin-tub transfiguration pressure of compressor 10 Contracting；When the 5th control valve 806 close and the first opening 8071 with the second 8072 conducting of opening when, refrigerant is from the first cylinder 101 First air intake passage 1012 is flowed into the first cylinder 101, is then discharged from first exhaust passage 1011, by the first opening 8071 The second air intake passage 1022 of the second cylinder 102 is flowed to the second 8072 (flowing through the first refrigerant flow 50) of opening, refrigerant is the Compressed again in two cylinders 102, then the second exhaust passage 1021 from the second cylinder 102 is discharged, so as to realize compression The two-stage transfiguration compression of machine 10.Alternatively, the 5th control valve 806 is magnetic valve, and the second switching valve 807 is three-way diverter valve.Can With understand yes, air-conditioner 1000 can also include controller, controller can be used for control the 5th control valve 806 break-make and Control the commutation of the second switching valve 807.

In further embodiments, as shown in Fig. 6 and Figure 12, control valve group part 80 includes the 3rd switching valve 808 and the 4th Switching valve 809, the 3rd switching valve 808 has the valve port 8083 of the first valve port 8081 to the 3rd, and the first valve port 8081 can be with the second valve A conducting in the valve port 8083 of mouth 8082 and the 3rd, that is to say, that when the first valve port 8081 and the second valve port 8082 are turned on, First valve port 8081 is not turned on the 3rd valve port 8083, when the first valve port 8081 and the 3rd valve port 8083 are turned on, the first valve port 8081 are not turned on the second valve port 8082.4th switching valve 809 has the conducting orifice 8093 of the first conducting orifice 8091 to the 3rd, first Conducting orifice 8091 can be turned on in the second conducting orifice 8092 and the 3rd conducting orifice 8093, that is to say, that when the first conducting When mouth 8091 and the second conducting orifice 8092 are turned on, the first conducting orifice 8091 is not turned on the 3rd conducting orifice 8093, when the first conducting When mouth 8091 and the 3rd conducting orifice 8093 are turned on, the first conducting orifice 8091 is not turned on the second conducting orifice 8092.

3rd switching valve 808 and the 4th switching valve 809 are connected on the first refrigerant flow 50, specifically, the first valve port 8081 are connected with first exhaust passage 1011, and the 3rd valve port 8083 is connected with the second conducting orifice 8092, the first conducting orifice 8091 with Second air intake passage 1022 is connected, and the second valve port 8082 is connected with the second end of the second refrigerant flow 60, the 3rd conducting orifice 8093 First end with the 3rd refrigerant flow 70 is connected.Specifically, when the first valve port 8081 and the 3rd valve port 8083 are turned on and first When 8091 and second conducting orifice of conducting orifice 8092 is turned on, refrigerant enters into the from the first air intake passage 1012 of the first cylinder 101 In one cylinder 101, after refrigerant is compressed in the first cylinder 101, discharged from first exhaust passage 1011, and sequentially pass through first Valve port 8081, the 3rd valve port 8083, the second conducting orifice 8092 and the first conducting orifice 8091 (flowing through the first refrigerant flow 50) flow direction Second air intake passage 1022 of the second cylinder 102 is logical from second exhaust after refrigerant is compressed again in the second cylinder 102 Road 1021 flows out, so as to the two-stage transfiguration for realizing compressor 10 is compressed；Turn on when the first valve port 8081 and the second valve port 8082 and When first conducting orifice 8091 and the 3rd conducting orifice 8093 are turned on, a part of refrigerant enters into the first gas from the first air intake passage 1012 In cylinder 101, this part refrigerant is discharged and by the first valve port after being compressed in the first cylinder 101 from first exhaust passage 1011 8081 and second valve port 8082 flow to the second refrigerant flow 60, another part refrigerant flows to the 3rd conducting from the 3rd refrigerant flow 70 Mouthfuls 8093, and flow to the second air intake passage 1022 by the first conducting orifice 8091, refrigerant is entered into after the second cylinder 102 second Compressed in cylinder 102, subsequent refrigerant is discharged from second exhaust passage 1021, so as to realize the twin-tub transfiguration pressure of compressor 10 Contracting.Alternatively, the 3rd switching valve 808 and the 4th switching valve 809 can be three-way diverter valve.It is understood that air-conditioner 1000 can also include controller, and controller can be used to control the commutation of the 3rd switching valve 808 and the 4th switching valve 809.

It should be noted that the structure of control valve group part 80 is not limited to described in above-described embodiment, control valve group part 80 can also be the control valve group part 80 including other control valves, as long as control valve group part 80 can control the first refrigerant flow 50 Two-stage transfiguration compression and twin-tub transfiguration to the break-make of the 3rd refrigerant stream to realize compressor 10 are compressed.

In some embodiments of the invention, as shown in Fig. 1, Fig. 4-Fig. 7 and Figure 10-Figure 12, when outdoor heat exchanger 20 The refrigerant flow 60 of second exhaust passage 1021 and second with one of them in indoor heat exchanger 30 simultaneously with the second cylinder 102 First end when being connected, in outdoor heat exchanger 20 and indoor heat exchanger 30 another simultaneously with the first of the first cylinder 101 the suction Gas passage 1012 is connected with the second end of the 3rd refrigerant flow 70.That is, when air-conditioner 1000 is single cold type air-conditioner When 1000, the second end of outdoor heat exchanger 20 refrigerant flow of second exhaust passage 1021 and second simultaneously with the second cylinder 102 60 first end is connected, the second end of indoor heat exchanger 30 the first air intake passage 1012 and the 3rd simultaneously with the first cylinder 101 Second end of refrigerant flow 70 is connected, and thus, from the refrigerant of the outflow of indoor heat exchanger 30, can respectively flow to the first cylinder 101 First air intake passage 1012 and the 3rd refrigerant flow 70, flow from the first end and second exhaust passage 1021 of the second refrigerant flow 60 The refrigerant for going out can flow directly into outdoor heat exchanger 20；When air-conditioner 1000 is heating and air conditioner 1000, above-mentioned first connection Mouth a is connected with the first end of the refrigerant flow 60 of second exhaust passage 1021 and second of the second cylinder 102 simultaneously, the 4th connector D is connected with the first air intake passage 1012 of the first cylinder 101 and the second end of the 3rd refrigerant flow 70 simultaneously, thus, from the 4th The refrigerant of connector d outflows can respectively flow to first air intake passage 1012 and the 3rd refrigerant flow 70 of the first cylinder 101, from the The refrigerant of first end and second exhaust passage 1021 outflow of two refrigerant flows 60 can flow directly into the first connector a.

In some embodiments of the invention, as shown in Figure 2 and Figure 8, air-conditioner 1000 also includes flash vessel 90, flash vessel 90 are connected between the first end of first throttle element 40 and indoor heat exchanger 30, and flash vessel 90 has first interface 901 to the Three interfaces 903, first interface 901 is connected with first throttle element 40, the first end phase of second interface 902 and indoor heat exchanger 30 Even, the 3rd interface 903 is connected with the second end of the 3rd refrigerant flow 70, thus, from a part of refrigerant that flash vessel 90 is isolated The 3rd refrigerant flow 70 can be flowed to.

Alternatively, the second restricting element 100 is in series between second interface 902 and indoor heat exchanger 30, so as to enter one The structure of step optimization air-conditioner 1000, improves the operating efficiency of air-conditioner 1000.

Alternatively, the second restricting element 100 is capillary, electric expansion valve or heating power expansion valve.

In some embodiments of the invention, as shown in Figure 3 and Figure 9, air-conditioner 1000 includes supercooling apparatus 110, supercooling Device 110 is connected between the first end of the first end of outdoor heat exchanger 20 and indoor heat exchanger 30, and supercooling apparatus 110 include The first flow path 1101 and second flow path 1102 for mutually exchanging heat, the first end of first flow path 1101 is (for example, as in Fig. 3 and Fig. 9 Upper end) it is connected with one of them in the first end of outdoor heat exchanger 20 and the first end of indoor heat exchanger 30, first flow path The of 1101 the second end (for example, such as the lower end in Fig. 3 and Fig. 9) and the first end of outdoor heat exchanger 20 and indoor heat exchanger 30 Another in one end is connected, in the second end of first flow path 1101 and the first end and indoor heat exchanger 30 of outdoor heat exchanger 20 First end in it is described first throttle element 40 is in series between another, the first end of second flow path 1102 is (for example, as schemed Upper end in 3 and Fig. 9) first end and outdoor heat exchanger 20 of first flow path 1101 are connected to by the 3rd restricting element 1103 Between one of them, the second end of second flow path 1102 is (for example, such as described in the first end of first end and indoor heat exchanger 30 Lower end in Fig. 3 and Fig. 9) it is connected with the second end of the 3rd refrigerant flow 70.

Specifically, as shown in figure 3, when air-conditioner 1000 is single cold type air-conditioner, supercooling apparatus 110 are connected on outdoor Between the first end of heat exchanger 20 and the first end of indoor heat exchanger 30, and supercooling apparatus 110 include the first-class of mutually heat exchange Road 1101 and second flow path 1102, the of the first end upper end of Fig. 3 (for example, as) of first flow path 1101 and outdoor heat exchanger 20 One end is connected, and the first end (for example, such as upper end of Fig. 3) of second flow path 1102 is connected to first by the 3rd restricting element 1103 Between the first end of stream 1101 and the first end of outdoor heat exchanger 20, the second end of first flow path 1101 is (for example, as under Fig. 3 End) it is connected with the first end of indoor heat exchanger 30, second end (for example, such as the lower end in Fig. 3) and the 3rd of second flow path 1102 Second end of refrigerant flow 70 is connected, and first throttle element 40 is connected on the first end and first flow path 1101 of indoor heat exchanger 30 The second end between.

As shown in figure 9, when air-conditioner 1000 is heating and air conditioner, air-conditioner 1000 also includes the second commutation component 130, the second commutation component 130 has the first connected entrance h of connected entrance e to the 4th, wherein, the first connected entrance e can be connected with second Mouthful f connect with third connecting mouthful g, the 4th connected entrance h can with the second connected entrance f and third connecting mouth g in it is another Individual connection, that is to say, that when the first connected entrance e is connected with the second connected entrance f, third connecting mouthful g and the 4th connected entrance h connects Logical, when the first connected entrance e is connected with third connecting mouthful g, the second connected entrance f is connected with the 4th connected entrance h.Wherein, first connects Port e is connected with the first end of outdoor heat exchanger 20, and the 4th connected entrance h is connected with the first end of indoor heat exchanger 30, and the 3rd connects Port g is connected with the second end of first flow path 1101, and first throttle element 40 is connected on third connecting mouthful g and first flow path 1101 The second end between, the second connected entrance f is connected with the first end of first flow path 1101, and the first end of second flow path 1102 is by the Three restricting elements 1103 are connected between the second connected entrance f and the first end of first flow path 1101.When air-conditioner 1000 freezes, The refrigerant flowed out from the first end of outdoor heat exchanger 20 flows to first flow path respectively by the first connected entrance e and the second connected entrance f 1101 and the 3rd restricting element 1103, refrigerant flows to second flow path 1102, first flow path from after the outflow of the 3rd restricting element 1103 1101 and second flow path 1102 in refrigerant mutually exchange heat, refrigerant from first flow path 1101 outflow after by first throttle element 40 After reducing pressure by regulating flow, and indoor heat exchanger 30 is flowed to by third connecting mouthful g and the 4th connected entrance h, refrigerant is from second flow path 1102 The 3rd refrigerant flow 70 is flowed directly into after outflow and is flowed into compressor 10.When air-conditioner 1000 is heated, from indoor heat exchange The refrigerant of the outflow of device 30 flows to the restricting element of first flow path 1101 and the 3rd respectively by the 4th connected entrance h and the second connected entrance f 1103, refrigerant flows to second flow path 1102, first flow path 1101 and second flow path 1102 from after the outflow of the 3rd restricting element 1103 In refrigerant mutually exchange heat, refrigerant by after the reducing pressure by regulating flow of first throttle element 40, and passes through from after the outflow of first flow path 1101 Third connecting mouthful g and the first connected entrance e flows to outdoor heat exchanger 20, and refrigerant flows directly into the 3rd from after the outflow of second flow path 1102 Refrigerant flow 70 is simultaneously flowed into compressor 10.Thus, be conducive to improving the degree of supercooling of the refrigerant from the outflow of first flow path 1101, The refrigerating capacity of air-conditioning is improved, the 3rd refrigerant flow 70 can be flowed to and is flowed into compressor 10 from the refrigerant of the outflow of second flow path 1102 It is interior, the delivery temperature of compressor 10 is advantageously reduced, improve the reliability of operation of air-conditioner 1000.Alternatively, supercooling apparatus 110 can be economizer.

Alternatively, the 3rd restricting element 1103 is capillary, electric expansion valve or heating power expansion valve.

In some embodiments of the invention, the delivery space of the first cylinder is V1, and the delivery space of the second cylinder is V2, V1, V2 meet：0.4<V2/V1<0.9.Thus, be conducive to further optimizing the structure of compressor 10, improve the property of compressor 10 Energy.

Some embodiments of the invention, air-conditioner 1000 includes the first electric capacity 103 and the second electric capacity 104, the first electricity Hold 103 capacity of the capacity more than the second electric capacity 104.When the twin-tub transfiguration of compressor 10 is compressed, the first electric capacity 103 or first is electric The electric capacity 104 of appearance 103 and second is powered for the motor 105 of compressor 10, when the two-stage transfiguration of compressor 10 is compressed, the first electric capacity 103 or second electric capacity 104 power for the motor 105 of compressor 10.Thus, when the twin-tub transfiguration of compressor 10 is compressed, using electricity It is the motor 105 of compressor 10 to hold the first larger electric capacity 103 of capacity or utilize the first electric capacity 103 and the second electric capacity 104 simultaneously Power supply, is conducive to improving the rotating speed of compressor 10, operating efficiency is improved, when the two-stage transfiguration of compressor 10 is compressed, using first The electric capacity 104 of electric capacity 103 or second is powered for the motor 105 of compressor 10, on the basis of the rotating speed for ensureing compressor 10, also Beneficial to reduction power consumption.

Further, when the twin-tub transfiguration of compressor 10 is compressed, the first electric capacity 103 and the second electric capacity 104 are compressor 10 Motor 105 power；When the two-stage transfiguration of compressor 10 is compressed, the first electric capacity 103 is powered for the motor 105 of compressor 10.

Specifically, as shown in Figure 13 and Figure 14, motor 105 has operation end 1051, common port 1052 and start end 1053, the first end (for example, the left end shown in Figure 13 and Figure 14) and the first end (example of the second electric capacity 104 of the first electric capacity 103 Such as, Figure 13 and the left end shown in Figure 14) be connected and form first node 1054, first node 1054 respectively with power supply 2000 Zero line side 2001 is connected with the operation end 1051 of motor 105, and the second end of the second electric capacity 104 in Figure 13 and Figure 14 (for example, show Right-hand member) be connected with second end (for example, the right-hand member shown in Figure 13 and Figure 14) of the first electric capacity 103 by first switch 1056 And Section Point 1055 is formed, Section Point 1055 is connected with the start end 1053 of motor 105, the zero line 2002 of power supply 2000 It is connected with the common port 1052 of motor 105.Thus, when the two-stage transfiguration of compressor 10 is compressed, by opening first switch 1056, Using the first electric capacity 103 for the motor 105 of compressor 10 is powered, now the capacitance of the motor 105 of compressor 10 is first The capacity of electric capacity 103, when the twin-tub transfiguration of compressor 10 is compressed, the first electric capacity 103 is utilized by closing first switch 1056 With the second electric capacity 104 simultaneously for the motor 105 of compressor 10 is powered, now the capacitance of compressor 10 is the first electric capacity 103 Capacity and the second electric capacity 104 capacity sum.

Further, as shown in figure 14, the second end of the first electric capacity 103 is connected to Section Point by second switch 1057 1055.Thus, can choose whether that it is the electricity of compressor 10 to need the first electric capacity 103 by opening or closing second switch 1057 Machine 105 is powered.

Alternatively, the capacity of the first electric capacity 103 is C1, and the capacity of the second electric capacity 104 is C2, and C1, C2 meets：0.2<C2/ (C1+C2)<0.8.So as to further optimize the capacity of the first electric capacity 103 and the second electric capacity 104.

The structure of the air-conditioner 1000 of particular embodiments of the invention is described in detail below with reference to Fig. 1-Figure 12, It is worth understanding, it is described below simply exemplary, it is intended to for explaining the present invention, and it is not intended that to limit of the invention System.

Embodiment 1

As shown in figure 1, air-conditioner 1000 according to embodiments of the present invention, including compressor 10, outdoor heat exchanger 20, interior Heat exchanger 30, first throttle element 40, the first refrigerant flow 50, the second refrigerant flow 60, the 3rd refrigerant flow 70 and control valve Component 80.

Specifically, as shown in figure 1, compressor 10 includes the first cylinder 101 and the second cylinder 102.The housing of compressor 10 Two exhaust outlets and two air entries are provided with, the first cylinder 101 has the air intake passage of first exhaust passage 1011 and first 1012, first exhaust passage 1011 is connected with one of exhaust outlet, the first air intake passage 1012 and one of air entry phase Even, the second cylinder 102 has an air intake passage 1022 of second exhaust passage 1021 and second, second exhaust passage 1021 and another Exhaust outlet is connected, and the second air intake passage 1022 is connected with another air entry.

As shown in figure 1, the first end of outdoor heat exchanger 20 is connected and outdoor heat exchanger with the first end of indoor heat exchanger 30 First throttle element 40 is in series between 20 and indoor heat exchanger 30, first throttle element 40 can be saved to the refrigerant for flowing through it Stream step-down.

First refrigerant flow 50 is connected between the air intake passage 1022 of first exhaust passage 1011 and second, outdoor heat exchanger 20 the second end is connected with the first end of the second refrigerant flow 60 and the second exhaust passage 1021 of the second cylinder 102, and second is cold Second end of matchmaker's stream 60 is connected with first exhaust passage 1011.

The first end of the 3rd refrigerant flow 70 is connected with the second air intake passage 1022, and the second end of indoor heat exchanger 30 is simultaneously It is connected with the second end of the 3rd refrigerant flow 70 and the first air intake passage 1012.

Control valve group part 80 can be used to control the break-make of the refrigerant flow 70 of the first refrigerant flow 50 to the 3rd to cause compression Machine 10 realizes two-stage transfiguration compression or twin-tub transfiguration compression.As shown in figure 1, control valve group part 80 include first control valve 801 to 3rd control valve 803, the first control valve 801 is connected on the first refrigerant flow 50, and the second control valve 802 is connected on the second refrigerant On stream 60, the 3rd control valve 803 is connected on the 3rd refrigerant flow 70.

The refrigerant of air-conditioner 1000 is flowed to：Exchanged heat in compressor 10- outdoor heat exchanger 20- first throttle element 40- rooms Device 30- compressors 10.

Specifically, closed in the first control valve 801, when the second control control valve 803 of valve 802 and the 3rd is opened, from room The refrigerant of the outflow of interior heat exchanger 30 is divided into two parts：A part of refrigerant can enter into the first cylinder from the first air intake passage 1012 In 101, another part refrigerant can enter into the second cylinder 102 from the 3rd refrigerant flow 70 and by the second air intake passage 1022 Interior, this two parts refrigerant independent compression in the first cylinder 101 and the second cylinder 102 respectively is pressed in subsequent first cylinder 101 The refrigerant of contracting flows to the second refrigerant flow 60 from first exhaust passage 1011, and the refrigerant compressed in the second cylinder 102 is from second The twin-tub transfiguration that exhaust passage 1021 discharges to realize compressor 10 is compressed, from the second refrigerant flow 60 and from second exhaust passage The refrigerant of 1021 discharges can simultaneously flow to outdoor heat exchanger 20；When the first control valve 801 is opened, the second control valve 802 and the 3rd When control valve 803 is closed, the 3rd refrigerant flow 70 is not flowed through from the refrigerant of the outflow of indoor heat exchanger 30, and only inhaled from first Gas passage 1012 is entered into the first cylinder 101, after refrigerant is compressed in the first cylinder 101, from the first of the first cylinder 101 Exhaust passage 1011 enters the first refrigerant flow 50, and subsequent refrigerant is entered in the second cylinder 102 by the second air intake passage 1022, Refrigerant in the second cylinder 102 by another second compression after, discharge to realize the two-stage of compressor 10 from second exhaust passage 1021 Transfiguration is compressed, and outdoor heat exchanger 20 is flowed to from the refrigerant of the discharge of second exhaust passage 1021.

Embodiment 2

As shown in Fig. 2 the present embodiment is substantially the same with the structure of embodiment one, wherein identical part is attached using identical Icon remembers that the difference is that only that air-conditioner 1000 also includes flash vessel 90, flash vessel 90 is connected on the He of first throttle element 40 Between the first end of indoor heat exchanger 30, flash vessel 90 has the interface 903 of first interface 901 to the 3rd, first interface 901 and the One restricting element 40 is connected, and second interface 902 is connected with the first end of indoor heat exchanger 30, is changed in second interface 902 and interior The second restricting element 100 is in series between hot device 30, the 3rd interface 903 is connected with the second end of the 3rd refrigerant flow 70.

The refrigerant of air-conditioner 1000 is flowed to：Compressor 10- outdoor heat exchanger 20- first throttle element 40- flash vessels 90, It is divided into two-way from the refrigerant of the outflow of flash vessel 90, refrigerant flows to indoor heat exchanger 30 and passes through from after the outflow of second interface 902 all the way Cross the first air intake passage 1012 and flow to the first cylinder 101；By the 3rd refrigerant stream during another control of road refrigerant the 3rd opening of valve 803 Road 70 flows to the second cylinder 102, when the 3rd control valve 803 is closed, is not passed through the 3rd refrigerant flow 70.

Specifically, closed in the first control valve 801, when the second control control valve 803 of valve 802 and the 3rd is opened, from room The refrigerant of the outflow of interior heat exchanger 30 can be entered into the first cylinder 101 from the first air intake passage 1012, from the 3rd of flash vessel 90 the The refrigerant of the outflow of interface 903 is entered into the second cylinder 102 by the 3rd refrigerant flow 70 and by the second air intake passage 1022, Is compressed in this two parts refrigerant independent compression in the first cylinder 101 and the second cylinder 102 respectively, subsequent first cylinder 101 Refrigerant flow to the second refrigerant flow 60 from first exhaust passage 1011, the refrigerant compressed in the second cylinder 102 is from second row The twin-tub transfiguration that gas passage 1021 discharges to realize compressor 10 is compressed, from the second refrigerant flow 60 and from second exhaust passage The refrigerant of 1021 discharges can simultaneously flow to outdoor heat exchanger 20；When the first control valve 801 is opened, the second control valve 802 and the 3rd When control valve 803 is closed, the no refrigerant of the 3rd refrigerant flow 70 flows through, and can be inhaled from first from the refrigerant of the outflow of indoor heat exchanger 30 Gas passage 1012 is entered into the first cylinder 101, after refrigerant is compressed in the first cylinder 101, from the first of the first cylinder 101 Exhaust passage 1011 enters the first refrigerant flow 50, and subsequent refrigerant is entered in the second cylinder 102 by the second air intake passage 1022, Refrigerant in the second cylinder 102 by another second compression after, discharge to realize the two-stage of compressor 10 from second exhaust passage 1021 Transfiguration is compressed, and outdoor heat exchanger 20 is flowed to from the refrigerant of the discharge of second exhaust passage 1021.

Embodiment 3

As shown in figure 3, the present embodiment is substantially the same with the structure of embodiment one, wherein identical part is attached using identical Icon remembers that the difference is that only that air-conditioner 1000 also includes supercooling apparatus 110, supercooling apparatus 110 are connected on outdoor heat exchanger Between 20 first end and the first end of indoor heat exchanger 30 and supercooling apparatus 110 include mutually heat exchange the He of first flow path 1101 Second flow path 1102, the first end of first flow path 1101 is connected with the first end of outdoor heat exchanger 20, and the of second flow path 1102 One end is connected between the first end of the first end of first flow path 1101 and outdoor heat exchanger 20 by the 3rd restricting element 1103, Second end of first flow path 1101 is connected with the first end of indoor heat exchanger 30, the second end and the 3rd refrigerant of second flow path 1102 Second end of stream 70 is connected, first throttle element 40 be connected on indoor heat exchanger 30 first end and first flow path 1101 the Between two ends.

The refrigerant of air-conditioner 1000 is flowed to：Refrigerant enters outdoor heat exchanger 20 from the discharge of compressor 10 heel row, is changed from outdoor The refrigerant of the outflow of hot device 20 is divided into two-way：First via refrigerant flows to first flow path 1101, flows subsequently through first throttle element 40 right Indoor heat exchanger 30 is flowed into afterwards；Second road refrigerant flows to the 3rd restricting element 1103, is flowed from after the outflow of the 3rd restricting element 1103 Enter second flow path 1102, refrigerant flows to the 3rd refrigerant flow from after the outflow of second flow path 1102 when the 3rd control valve 803 is opened 70, when the 3rd control valve 803 is closed, the no refrigerant of the 3rd refrigerant flow 70 flows through.

Specifically, closed in the first control valve 801, when the second control control valve 803 of valve 802 and the 3rd is opened, from room The refrigerant of the outflow of interior heat exchanger 30 can be entered into the first cylinder 101 from the first air intake passage 1012, flowed from second flow path 1102 The refrigerant for going out is entered into the second cylinder 102 by the 3rd refrigerant flow 70 and by the second air intake passage 1022, this two parts The refrigerant compressed in the refrigerant independent compression in the first cylinder 101 and the second cylinder 102 respectively, subsequent first cylinder 101 from First exhaust passage 1011 flows to the second refrigerant flow 60, and the refrigerant compressed in the second cylinder 102 is from second exhaust passage Twin-tub transfiguration of 1021 discharges to realize compressor 10 is compressed, and is discharged from the second refrigerant flow 60 and from second exhaust passage 1021 Refrigerant can simultaneously flow to outdoor heat exchanger 20；When the first control valve 801 is opened, the second control control valve 803 of valve 802 and the 3rd During closing, the no refrigerant of the 3rd refrigerant flow 70 flows through, and the refrigerant from the outflow of indoor heat exchanger 30 can be from the first air intake passage 1012 enter into the first cylinder 101, after refrigerant is compressed in the first cylinder 101, lead to from the first exhaust of the first cylinder 101 Road 1011 enters the first refrigerant flow 50, and subsequent refrigerant is entered in the second cylinder 102 by the second air intake passage 1022, and refrigerant exists In second cylinder 102 by another second compression after, discharge to realize the two-stage transfiguration pressure of compressor 10 from second exhaust passage 1021 Contracting, outdoor heat exchanger 20 is flowed to from the refrigerant of the discharge of second exhaust passage 1021.

Embodiment 4

As shown in figure 4, the present embodiment is substantially the same with the structure of embodiment one, wherein identical part is attached using identical Icon note, the difference is that only that control valve group part 80 includes the 4th control switching valve 805 of valve 804 and first, the first switching valve 805 have the port 8053 of first port 8051 to the 3rd, and first port 8051 can be with the port 8053 of second port 5052 and the 3rd In one conducting.First switching valve 805 is connected on the first refrigerant flow 50, the air intake passage of first port 8051 and second 1022 are connected, and second port 5052 is connected with first exhaust passage 1011, and the of the 3rd port 8053 and the 3rd refrigerant flow 70 One end is connected, and the 4th control valve 804 is connected on the second refrigerant flow 60 to control the break-make of the second refrigerant flow 60.

When the port 8053 of first port 8051 and the 3rd turns on and the 4th control valve 804 is opened, from indoor heat exchanger 30 The refrigerant of outflow is divided into two-way, and refrigerant enters into the first cylinder 101 by the first air intake passage 1012 of the first cylinder 101 all the way Interior, the subsequent part refrigerant flows to the second refrigerant flow 60 after being discharged from the first exhaust passage 1011 of the first cylinder 101, another Road refrigerant flows to the of the second cylinder 102 by the 3rd refrigerant flow 70 by the 3rd port 8053 and first port 8051 Two air intake passages 1022, after the part refrigerant is compressed in the second cylinder 102, discharge from second exhaust passage 1021, so that The twin-tub transfiguration compression of compressor 10 is realized, can be same from the second refrigerant flow 60 and the refrigerant discharged from second exhaust passage 1021 Shi Liuxiang outdoor heat exchangers 20；When the 4th control valve 804 is closed and first port 8051 is turned on second port 5052, refrigerant The 3rd refrigerant flow 70 is not passed through, the refrigerant from the outflow of indoor heat exchanger 30 can be from the first air intake passage of the first cylinder 101 1012 flow into the first cylinder 101, are then discharged from first exhaust passage 1011, by second port 5052 and first port 8051 (flowing through the first refrigerant flow 50) flow to the second air intake passage 1022 of the second cylinder 102, and refrigerant is in the second cylinder 102 Compressed again, then the second exhaust passage 1021 from the second cylinder 102 is discharged and flows to outdoor heat exchanger 20, so that real The two-stage transfiguration compression of existing compressor 10.

Embodiment 5

As shown in figure 5, the present embodiment is substantially the same with the structure of embodiment one, wherein identical part is attached using identical Icon remembers, the difference is that only that control valve group part 80 includes the 5th control switching valve 807 of valve 806 and second, the second switching valve 807 have the opening 8073 of the first opening 8071 to the 3rd, and the first opening 8071 can be with the second opening 8072 and the 3rd opening 8073 In one conducting.Second switching valve 807 is connected on the first refrigerant flow 50, and the first opening 8071 and first exhaust passage 1011 connections, the second opening 8072 is connected with the second air intake passage 1022, and the second end of the second refrigerant flow 60 is open with the 3rd 8073 are connected, and the 5th control valve 806 is connected on the 3rd refrigerant flow 70 to control the break-make of the 3rd refrigerant flow 70.

When the first opening 8071 and the conducting of the 3rd opening 8073 and the 5th control valve 806 are opened, from indoor heat exchanger 30 The refrigerant of outflow is divided into two-way：Refrigerant enters into the first cylinder 101 by the first air intake passage 1012 of the first cylinder 101 all the way Interior, the subsequent part refrigerant is from after the discharge of first exhaust passage 1011 of the first cylinder 101 by the first opening 8071 and the 3rd Opening 8073 flows to the second refrigerant flow 60, and another road refrigerant flows to the second of the second cylinder 102 by the 3rd refrigerant flow 70 Air intake passage 1022, after the part refrigerant is compressed in the second cylinder 102, discharges from second exhaust passage 1021, so that real The twin-tub transfiguration compression of existing compressor 10, can be from the second refrigerant flow 60 and the refrigerant discharged from second exhaust passage 1021 simultaneously Flow to outdoor heat exchanger 20；When the 5th control valve 806 is closed and the first opening 8071 and the second opening 8072 turn on, the 3rd is cold The no refrigerant of matchmaker's stream 70 is flowed through, and refrigerant is flowed into the first cylinder 101 from first air intake passage 1012 of the first cylinder 101, with Discharged from first exhaust passage 1011 afterwards, flowed by the first opening 8071 and the second 8072 (flowing through the first refrigerant flow 50) of opening To the second air intake passage 1022 of the second cylinder 102, refrigerant is compressed again in the second cylinder 102, then from the second gas The second exhaust passage 1021 of cylinder 102 is discharged, so as to the two-stage transfiguration for realizing compressor 10 is compressed, from second exhaust passage 1021 The refrigerant of discharge can flow to outdoor heat exchanger 20.

Embodiment 6

As shown in fig. 6, the present embodiment is substantially the same with the structure of embodiment one, wherein identical part is attached using identical Icon note, the difference is that only that control valve group part 80 includes the 3rd switching valve 808 and the 4th switching valve 809, the 3rd switching valve 808 have the valve port 8083 of the first valve port 8081 to the 3rd, and the first valve port 8081 can be with the second valve port 8082 and the 3rd valve port 8083 In one conducting.4th switching valve 809 has the conducting orifice 8093 of the first conducting orifice 8091 to the 3rd, and the first conducting orifice 8091 can With a conducting in the second conducting orifice 8092 and the 3rd conducting orifice 8093.

3rd switching valve 808 and the 4th switching valve 809 are connected on the first refrigerant flow 50, specifically, the first valve port 8081 are connected with first exhaust passage 1011, and the 3rd valve port 8083 is connected with the second conducting orifice 8092, the first conducting orifice 8091 with Second air intake passage 1022 is connected, and the second valve port 8082 is connected with the second end of the second refrigerant flow 60, the 3rd conducting orifice 8093 First end with the 3rd refrigerant flow 70 is connected.

Specifically, when the first valve port 8081 and the 3rd valve port 8083 are turned on and the first conducting orifice 8091 and the second conducting orifice During 8092 conducting, first is entered into from the first air intake passage 1012 of the first cylinder 101 from the refrigerant of the outflow of indoor heat exchanger 30 In cylinder 101, after refrigerant is compressed in the first cylinder 101, discharged from first exhaust passage 1011, and sequentially pass through the first valve Mouthful the 8081, the 3rd valve port 8083, the second conducting orifice 8092 and the first conducting orifice 8091 (flowing through the first refrigerant flow 50) flow to the Second air intake passage 1022 of two cylinders 102, after refrigerant is compressed in the second cylinder 102, flows from second exhaust passage 1021 Go out, so as to the two-stage transfiguration for realizing compressor 10 is compressed；When the first valve port 8081 and the second valve port 8082 are turned on and the first conducting When mouth 8091 and the 3rd conducting orifice 8093 are turned on, two-way is divided into from the refrigerant of the outflow of indoor heat exchanger 30：Refrigerant is from first all the way Air intake passage 1012 is entered into the first cylinder 101, and this part refrigerant leads to after being compressed in the first cylinder 101 from first exhaust Road 1011 is discharged and flows to the second refrigerant flow 60 by the first valve port 8081 and the second valve port 8082, and another road refrigerant is from interior Heat exchanger 30 flows to the 3rd refrigerant flow 70 and flows to second by the 3rd conducting orifice 8093 and the first conducting orifice 8091 after flowing out Air intake passage 1022, refrigerant is entered into after the second cylinder 102 and compressed in the second cylinder 102, and subsequent refrigerant is from second exhaust Passage 1021 is discharged, so as to the twin-tub transfiguration for realizing compressor 10 is compressed, from second exhaust passage 1021 and from the second refrigerant stream The refrigerant of the outflow of road 60 can simultaneously flow to outdoor heat exchanger 20.

Embodiment 7

As shown in fig. 7, the present embodiment is substantially the same with the structure of embodiment one, wherein identical part is attached using identical Icon remembers that the difference is that only that air-conditioner 1000 includes commutation component 120, commutation component 120 has the first connector a to the Four connector d, the first connector a are connected with the first end of the refrigerant flow 60 of second exhaust passage 1021 and second simultaneously, and second Connector b is connected with the second end of outdoor heat exchanger 20, and the 3rd connector c is connected with the second end of indoor heat exchanger 30, and the 4th Connector d is connected with the second end of the first air intake passage 1012 and the 3rd refrigerant flow 70 simultaneously.

Refrigerant flow direction is during the refrigeration of air-conditioner 1000：Compressor 10- the first connector a- the second connector b- are changed outside room The connector d- compressors 10 of the 3rd connector c- of hot device 20- first throttles element 40- indoor heat exchanger 30- the 4th.

Refrigerant when air-conditioner 1000 is heated flows to and is：The first connectors of compressor 10- a- the 3rd is changed in connector c- rooms The hot connector d- compressors 10 of device 30- first throttles element 40- outdoor heat exchangers the second connectors of 20- b- the 4th.

Specifically, closed in the first control valve 801, when the second control control valve 803 of valve 802 and the 3rd is opened, from the The refrigerant of four connector d outflows is divided into two parts：A part of refrigerant can enter into the first cylinder 101 from the first air intake passage 1012 Interior, another part refrigerant can be entered into the second cylinder 102 from the 3rd refrigerant flow 70 and by the second air intake passage 1022, this Compressed in two parts refrigerant independent compression in the first cylinder 101 and the second cylinder 102 respectively, subsequent first cylinder 101 Refrigerant flows to the second refrigerant flow 60 from first exhaust passage 1011, and the refrigerant compressed in the second cylinder 102 is from second exhaust The twin-tub transfiguration that passage 1021 discharges to realize compressor 10 is compressed, from the second refrigerant flow 60 and from second exhaust passage 1021 The refrigerant of discharge can simultaneously flow to the first connector a；When the first control valve 801 is opened, the second control control valve of valve 802 and the 3rd During 803 closing, the no refrigerant of the 3rd refrigerant flow 70 flows through, and the refrigerant from the 4th connector d outflows can be from the first air intake passage 1012 enter into the first cylinder 101, after refrigerant is compressed in the first cylinder 101, lead to from the first exhaust of the first cylinder 101 Road 1011 enters the first refrigerant flow 50, and subsequent refrigerant is entered in the second cylinder 102 by the second air intake passage 1022, and refrigerant exists In second cylinder 102 by another second compression after, discharge to realize the two-stage transfiguration pressure of compressor 10 from second exhaust passage 1021 Contracting, the first connector a is flowed to from the refrigerant of the discharge of second exhaust passage 1021.

Embodiment 8

As shown in figure 8, the present embodiment is substantially the same with the structure of embodiment seven, wherein identical part is attached using identical Icon note, the difference is that only that the 4th connector d is only connected with the first air intake passage 1012, and air-conditioner 1000 also includes dodging Steaming device 90, flash vessel 90 is connected between the first end of first throttle element 40 and indoor heat exchanger 30, and flash vessel 90 has the The interface 903 of one interface 901 to the 3rd, first interface 901 is connected with first throttle element 40, second interface 902 and indoor heat exchange The first end of device 30 is connected, and the second restricting element 100 is in series between second interface 902 and indoor heat exchanger 30, and the 3rd connects Mouth 903 is connected with the second end of the 3rd refrigerant flow 70.

The refrigerant during refrigeration of air-conditioner 1000 flows to and is：Outside compressor 10- the first connector a- the second connector b- rooms Heat exchanger 20- first throttle element 40- flash vessels 90, two-way refrigerant flows out from flash vessel 90, wherein refrigerant is by second all the way Restricting element 100 flows to indoor heat exchanger 30, and refrigerant flows to the 3rd connector c from after the outflow of indoor heat exchanger 30 and by the Four connector d flow to the first air intake passage 1012；Another road refrigerant is flowed to after directly being flowed out from the 3rd interface 903 of flash vessel 90 3rd refrigerant flow 70.

Refrigerant when heating of air-conditioner 1000 flows to and is：In the connector c- rooms of the first connectors of compressor 10- a- the 3rd Heat exchanger 30- the second restricting element 100- flash vessels 90, two-way refrigerant flows out from flash vessel 90, wherein refrigerant is by first all the way Restricting element 40 flows to outdoor heat exchanger 20, and refrigerant flows to the 3rd connector c and by the 4th from after the outflow of outdoor heat exchanger 20 Connector d flows to the first air intake passage 1012；Another road refrigerant flows to the after directly being flowed out from the 3rd interface 903 of flash vessel 90 Three refrigerant flows 70.

Specifically, closed in the first control valve 801, when the second control control valve 803 of valve 802 and the 3rd is opened, from the The refrigerant of four connector d outflows can be entered into the first cylinder 101 from the first air intake passage 1012, connect from the 3rd of flash vessel 90 the The refrigerants of the outflow of mouth 903 are entered into the second cylinder 102 by the 3rd refrigerant flow 70 and by the second air intake passage 1022, this Compressed in two parts refrigerant independent compression in the first cylinder 101 and the second cylinder 102 respectively, subsequent first cylinder 101 Refrigerant flows to the second refrigerant flow 60 from first exhaust passage 1011, and the refrigerant compressed in the second cylinder 102 is from second exhaust The twin-tub transfiguration that passage 1021 discharges to realize compressor 10 is compressed, from the second refrigerant flow 60 and from second exhaust passage 1021 The refrigerant of discharge can simultaneously flow to the first connector a；When the first control valve 801 is opened, the second control control valve of valve 802 and the 3rd During 803 closing, can be entered into the first cylinder 101 from the first air intake passage 1012 from the refrigerant of the 4th connector d outflows, refrigerant After being compressed in the first cylinder 101, the first refrigerant flow 50 is entered from the first exhaust passage 1011 of the first cylinder 101, with Refrigerant is entered in the second cylinder 102 by the second air intake passage 1022 afterwards, and refrigerant is in the second cylinder 102 by another second compression Afterwards, the two-stage transfiguration to realize compressor 10 is discharged from second exhaust passage 1021 to compress, and is discharged from second exhaust passage 1021 Refrigerant flow to the connector a of outdoor heat exchanger 20 first.

Embodiment 9

As shown in figure 9, the present embodiment is substantially the same with the structure of embodiment seven, wherein identical part is attached using identical Icon note, the difference is that only that the 4th connector d is only connected with the first air intake passage 1012, and air-conditioner 1000 also included Device for cooling 110 and second commutates component, and supercooling apparatus 110 are connected on the first end and indoor heat exchanger 30 of outdoor heat exchanger 20 Between first end and supercooling apparatus 110 include mutually heat exchange first flow path 1101 and second flow path 1102, second commutation component 130 have the first connected entrance h of connected entrance e to the 4th, wherein, the first connected entrance e can be with the second connected entrance f and third connecting mouthful g In a connection, the 4th connected entrance h can connect with another in the second connected entrance f and third connecting mouthful g, that is to say, that When the first connected entrance e is connected with the second connected entrance f, third connecting mouthful g is connected with the 4th connected entrance h, as the first connected entrance e and When third connecting mouthful g is connected, the second connected entrance f is connected with the 4th connected entrance h.Wherein, the first connected entrance e and outdoor heat exchanger 20 First end be connected, the 4th connected entrance h is connected with the first end of indoor heat exchanger 30, third connecting mouth g and first flow path 1101 The second end be connected, first throttle element 40 is connected between third connecting mouthful g and the second end of first flow path 1101, and second connects Port f is connected with the first end of first flow path 1101, and the first end of second flow path 1102 is connected by the 3rd restricting element 1103 Between the second connected entrance f and the first end of first flow path 1101, the second end and the 3rd refrigerant flow 70 of second flow path 1102 It is connected.When air-conditioner 1000 freezes, the refrigerant flowed out from the first end of outdoor heat exchanger 20 is by the first connected entrance e and second Connected entrance f flows to the restricting element 1103 of first flow path 1101 and the 3rd respectively, and refrigerant flows from after the outflow of the 3rd restricting element 1103 To second flow path 1102, the refrigerant in first flow path 1101 and second flow path 1102 mutually exchanges heat, and refrigerant is from first flow path 1101 By after the reducing pressure by regulating flow of first throttle element 40 after outflow, and by the indoor heat exchange of third connecting mouthful g and the 4th connected entrance h flow directions Device 30, refrigerant flows directly into the 3rd refrigerant flow 70 and is flowed into compressor 10 from after the outflow of second flow path 1102.Work as air-conditioning When device 1000 is heated, first is flowed to respectively by the 4th connected entrance h and the second connected entrance f from the refrigerant of the outflow of indoor heat exchanger 30 The restricting element 1103 of stream 1101 and the 3rd, refrigerant flows to second flow path 1102, first from after the outflow of the 3rd restricting element 1103 Refrigerant in stream 1101 and second flow path 1102 mutually exchanges heat, and refrigerant is from after the outflow of first flow path 1101 by first throttle unit After the reducing pressure by regulating flow of part 40, and outdoor heat exchanger 20 is flowed to by third connecting mouthful g and the first connected entrance e, refrigerant is from second flow path The 3rd refrigerant flow 70 is flowed directly into after 1102 outflows and be flowed into compressor 10.

The refrigerant during refrigeration of air-conditioner 1000 flows to and is：Outside compressor 10- the first connector a- the second connector b- rooms Heat exchanger 20- the first connected entrance e- the second connected entrance f, are divided into two-way, wherein being all the way from the refrigerant of the second connected entrance f outflows： The refrigerant flows 70 of 3rd restricting element 1103- second flow paths 1102- the 3rd, another road is：First flow path 1101- first throttles unit The first air-breathings of connector d- of the 4th the 3rd connector c- of connected entrance h- indoor heat exchanger 30- of part 40- third connectings mouthful g- the 4th are led to Road 1012.

Refrigerant when heating of air-conditioner 1000 flows to and is：In the connector c- rooms of the first connectors of compressor 10- a- the 3rd Connected entrance h- the second connected entrance f of heat exchanger 30- the 4th, are divided into two-way, wherein being all the way from the refrigerant of the second connected entrance f outflows： The refrigerant flows 70 of 3rd restricting element 1103- second flow paths 1102- the 3rd, another road is：First flow path 1101- first throttles The first air-breathings of connector d- of element 40- third connectings mouthful g- the first connected entrance e- outdoor heat exchangers the second connectors of 20- b- the 4th Passage 1012.

Specifically, closed in the first control valve 801, when the second control control valve 803 of valve 802 and the 3rd is opened, from the The refrigerant of four connector d outflows can be entered into the first cylinder 101 from the first air intake passage 1012, flowed out from second flow path 1102 Refrigerant entered into the second cylinder 102 by the 3rd refrigerant flow 70 and by the second air intake passage 1022, this two parts is cold The refrigerant compressed in matchmaker's independent compression in the first cylinder 101 and the second cylinder 102 respectively, subsequent first cylinder 101 is from the One exhaust passage 1011 flows to the second refrigerant flow 60, and the refrigerant compressed in the second cylinder 102 is from second exhaust passage 1021 Discharge with realize compressor 10 twin-tub transfiguration compress, from the second refrigerant flow 60 and from second exhaust passage 1021 discharge it is cold Matchmaker can simultaneously flow to the first connector a；When the first control valve 801 is opened, the second control control valve 803 of valve 802 and the 3rd is closed When, can be entered into the first cylinder 101 from the first air intake passage 1012 from the refrigerant of the 4th connector d outflows, refrigerant is first After being compressed in cylinder 101, the first refrigerant flow 50, subsequent refrigerant are entered from the first exhaust passage 1011 of the first cylinder 101 Entered in the second cylinder 102 by the second air intake passage 1022, refrigerant in the second cylinder 102 by another second compression after, from the The two-stage transfiguration that two exhaust passages 1021 discharge to realize compressor 10 is compressed, from the refrigerant stream of the discharge of second exhaust passage 1021 To the first connector a.

Embodiment 10

As shown in Figure 10, the present embodiment is substantially the same with the structure of embodiment seven, and wherein identical part uses identical Reference, the difference is that only that control valve group part 80 includes the 4th control switching valve 805 of valve 804 and first, the first switching Valve 805 has the port 8053 of first port 8051 to the 3rd, and first port 8051 can be with the port of second port 5052 and the 3rd A conducting in 8053.First switching valve 805 is connected on the first refrigerant flow 50, and the air-breathing of first port 8051 and second is led to Road 1022 is connected, and second port 5052 is connected with first exhaust passage 1011, the 3rd port 8053 and the 3rd refrigerant flow 70 First end is connected, and the 4th control valve 804 is connected on the second refrigerant flow 60 to control the break-make of the second refrigerant flow 60.

When the port 8053 of first port 8051 and the 3rd turns on and the 4th control valve 804 is opened, from the 4th connector d streams The refrigerant for going out is divided into two-way, and refrigerant enters into the first cylinder 101 by the first air intake passage 1012 of the first cylinder 101 all the way Interior, the subsequent part refrigerant flows to the second refrigerant flow 60 after being discharged from the first exhaust passage 1011 of the first cylinder 101, another Road refrigerant flows to the of the second cylinder 102 by the 3rd refrigerant flow 70 by the 3rd port 8053 and first port 8051 Two air intake passages 1022, after the part refrigerant is compressed in the second cylinder 102, discharge from second exhaust passage 1021, so that The twin-tub transfiguration compression of compressor 10 is realized, can be same from the second refrigerant flow 60 and the refrigerant discharged from second exhaust passage 1021 The first connectors of Shi Liuxiang a；When the 4th control valve 804 is closed and first port 8051 and second port 5052 are turned on, from the The refrigerant of four connector d outflows can be flowed into the first cylinder 101 from first air intake passage 1012 of the first cylinder 101, then from First exhaust passage 1011 is discharged, and is flowed to by second port 5052 and first port 8051 (flowing through the first refrigerant flow 50) Second air intake passage 1022 of two cylinders 102, refrigerant is compressed again in the second cylinder 102, then from the second cylinder 102 Second exhaust passage 1021 discharge and flow to the first connector a, so as to realize compressor 10 two-stage transfiguration compress.

Embodiment 11

As shown in figure 11, the present embodiment is substantially the same with the structure of embodiment seven, and wherein identical part uses identical Reference, the difference is that only, control valve group part 80 includes the 5th control switching valve 807 of valve 806 and second, the second switching Valve 807 has the opening 8073 of the first opening 8071 to the 3rd, and the first opening 8071 can be with the second opening 8072 and the 3rd opening A conducting in 8073.Second switching valve 807 is connected on the first refrigerant flow 50, and the first opening 8071 and first exhaust Passage 1011 is connected, and the second opening 8072 is connected with the second air intake passage 1022, second end and the 3rd of the second refrigerant flow 60 Opening 8073 is connected, and the 5th control valve 806 is connected on the 3rd refrigerant flow 70 to control the break-make of the 3rd refrigerant flow 70.

When the first opening 8071 and the conducting of the 3rd opening 8073 and the 5th control valve 806 are opened, from the 4th connector d streams The refrigerant for going out is divided into two-way：Refrigerant enters into the first cylinder 101 by the first air intake passage 1012 of the first cylinder 101 all the way Interior, the subsequent part refrigerant is from after the discharge of first exhaust passage 1011 of the first cylinder 101 by the first opening 8071 and the 3rd Opening 8073 flows to the second refrigerant flow 60, and another road refrigerant flows to the second of the second cylinder 102 by the 3rd refrigerant flow 70 Air intake passage 1022, after the part refrigerant is compressed in the second cylinder 102, discharges from second exhaust passage 1021, so that real The twin-tub transfiguration compression of existing compressor 10, can be from the second refrigerant flow 60 and the refrigerant discharged from second exhaust passage 1021 simultaneously Flow to the first connector a；When the 5th control valve 806 is closed and the first opening 8071 and the second opening 8072 turn on, from the 4th The refrigerant of connector d outflows is flowed into the first cylinder 101 from first air intake passage 1012 of the first cylinder 101, then from first Exhaust passage 1011 is discharged, and the second gas is flowed to by the first opening 8071 and the second 8072 (flowing through the first refrigerant flow 50) of opening Second air intake passage 1022 of cylinder 102, refrigerant is compressed again in the second cylinder 102, then from the of the second cylinder 102 Two exhaust passages 1021 are discharged, so as to the two-stage transfiguration for realizing compressor 10 is compressed, so that the discharge of second exhaust passage 1021 Refrigerant flows to the first connector a.

Embodiment 12

As shown in figure 12, the present embodiment is substantially the same with the structure of embodiment seven, and wherein identical part uses identical Reference, the difference is that only that control valve group part 80 includes the 3rd switching valve 808 and the 4th switching valve 809, the 3rd switching Valve 808 has the valve port 8083 of the first valve port 8081 to the 3rd, and the first valve port 8081 can be with the second valve port 8082 and the 3rd valve port A conducting in 8083.4th switching valve 809 has the conducting orifice 8093 of the first conducting orifice 8091 to the 3rd, the first conducting orifice 8091 can turn on in the second conducting orifice 8092 and the 3rd conducting orifice 8093.

Specifically, when the first valve port 8081 and the 3rd valve port 8083 are turned on and the first conducting orifice 8091 and the second conducting orifice During 8092 conducting, the first gas is entered into from the first air intake passage 1012 of the first cylinder 101 from the refrigerant of the 4th connector d outflows In cylinder 101, after refrigerant is compressed in the first cylinder 101, discharged from first exhaust passage 1011, and sequentially pass through the first valve port 8081st, the 3rd valve port 8083, the second conducting orifice 8092 and the first conducting orifice 8091 (flowing through the first refrigerant flow 50) flow to second Second air intake passage 1022 of cylinder 102, after refrigerant is compressed in the second cylinder 102, flows out from second exhaust passage 1021, So as to the two-stage transfiguration for realizing compressor 10 is compressed, the first connector a is flowed to from the refrigerant of the discharge of second exhaust passage 1021；When When first valve port 8081 and the second valve port 8082 are turned on and the first conducting orifice 8091 and the 3rd conducting orifice 8093 are turned on, connect from the 4th The refrigerant of interface d outflows is divided into two-way：Refrigerant is entered into the first cylinder 101 from the first air intake passage 1012 all the way, this part Refrigerant is discharged and by the first valve port 8081 and the second valve port after being compressed in the first cylinder 101 from first exhaust passage 1011 8082 flow to the second refrigerant flow 60, and another road refrigerant flows to the 3rd refrigerant flow 70 and passes through from after the 4th connector d outflows 3rd conducting orifice 8093 and the first conducting orifice 8091 flow to the second air intake passage 1022, refrigerant enter into after the second cylinder 102 Compressed in second cylinder 102, subsequent refrigerant is discharged from second exhaust passage 1021, so as to realize the twin-tub transfiguration of compressor 10 Compression, the first connector a can be simultaneously flowed to from second exhaust passage 1021 and from the refrigerant of the outflow of the second refrigerant flow 60.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example Close and combine.

Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims

1. a kind of air-conditioner, it is characterised in that including：

Compressor, the compressor includes the first cylinder and the second cylinder, and first cylinder has first exhaust passage and the One air intake passage, second cylinder has second exhaust passage and the second air intake passage；

The first end phase of outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger and the indoor heat exchanger Even, and first throttle element is in series between the outdoor heat exchanger and the indoor heat exchanger, the of the outdoor heat exchanger One of them in second end of two ends and the indoor heat exchanger is connected with the second exhaust passage of second cylinder, described Another the first air-breathing with first cylinder in second end of outdoor heat exchanger and the second end of the indoor heat exchanger Passage is connected；

First refrigerant flow, first refrigerant flow be connected to the first exhaust passage and second air intake passage it Between；

Second refrigerant flow, in the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger described wherein one The individual first end with second refrigerant flow is connected, the second end of second refrigerant flow and the first exhaust passage phase Even；

3rd refrigerant flow, the first end of the 3rd refrigerant flow is connected with second air intake passage, the 3rd refrigerant Stream is configured to for the refrigerant in the refrigeration circuit outside the compressor to be guided to second air intake passage；

Control valve group part, the control valve group part can be used to control first refrigerant flow leading to the 3rd refrigerant flow Break to cause that the compressor realizes that two-stage transfiguration compression or twin-tub transfiguration are compressed.

2. air-conditioner according to claim 1, it is characterised in that the control valve group part includes the first control valve to the 3rd Control valve, the first control valve is connected on first refrigerant flow, and it is cold that the second control valve is connected on described second On matchmaker's stream, the 3rd control valve is connected on the 3rd refrigerant flow.

3. air-conditioner according to claim 1, it is characterised in that the control valve group part includes the 4th control valve and first Switching valve, first switching valve has first port to the 3rd port, and the first port can be with the second port and institute State one in the 3rd port conducting, first switching valve is connected on first refrigerant flow, the first port with Second air intake passage is connected, and the second port is connected with the first exhaust passage, and the of the 3rd refrigerant flow One end is connected with the 3rd port, and the 4th control valve is connected on second refrigerant flow.

4. air-conditioner according to claim 1, it is characterised in that the control valve group part includes the 5th control valve and second Switching valve, second switching valve has the first opening to the 3rd opening, and first opening can be with the described second opening and institute A conducting in the 3rd opening is stated, second switching valve is connected on first refrigerant flow, and first opening It is connected with the first exhaust passage, second opening is connected with second air intake passage, second refrigerant flow Second end is connected with the described 3rd opening, and the 5th control valve is connected on the 3rd refrigerant flow.

5. air-conditioner according to claim 1, it is characterised in that the control valve group part includes the 3rd switching valve and the 4th Switching valve, the 3rd switching valve has the first valve port to the 3rd valve port, and first valve port can be with the second valve port and described the A conducting in three valve ports, the 4th switching valve has the first conducting orifice to the 3rd conducting orifice, and first conducting orifice can Connected with the second conducting orifice and the 3rd conducting orifice, the 3rd switching valve and the 4th switching valve are connected on On first refrigerant flow, first valve port is connected with the first exhaust passage, the 3rd valve port and described second Conducting orifice is connected, and first conducting orifice is connected with second air intake passage, second valve port and the second refrigerant stream Second end on road is connected, and the 3rd conducting orifice is connected with the first end of the 3rd refrigerant flow.

6. the air-conditioner according to any one of claim 1-4, it is characterised in that when the outdoor heat exchanger and the room One of them in interior heat exchanger is simultaneously with the first of the second exhaust passage of second cylinder and second refrigerant flow When end is connected, another the first air-breathing simultaneously with first cylinder in the outdoor heat exchanger and the indoor heat exchanger Passage is connected with the second end of the 3rd refrigerant flow.

7. the air-conditioner according to any one of claim 1-4, it is characterised in that also including flash vessel, the flash vessel It is connected between the first throttle element and the first end of the indoor heat exchanger, the flash vessel has first interface to Three interfaces, the first interface is connected with the first throttle element, the second interface and the first of the indoor heat exchanger End is connected, and the 3rd interface is connected with the second end of the 3rd refrigerant flow.

8. air-conditioner according to claim 7, it is characterised in that gone here and there between the second interface and the indoor heat exchanger It is associated with the second restricting element.

9. the air-conditioner according to any one of claim 1-4, it is characterised in that also including supercooling apparatus, the supercooling Device is connected between the first end of the first end of the outdoor heat exchanger and the indoor heat exchanger, and the supercooling apparatus bag Include the first flow path and second flow path of mutual heat exchange, the first end of the first end of the first flow path and the outdoor heat exchanger and One of them in the first end of the indoor heat exchanger is connected, the second end and the outdoor heat exchanger of the first flow path First end is connected with another in the first end of the indoor heat exchanger, in the second end of the first flow path and the outdoor Described in the first end of the first end of heat exchanger and the indoor heat exchanger is in series with the first throttle unit between another Part, the first end of the second flow path is connected to the first end of the first flow path by the 3rd restricting element and the outdoor is changed Described in the first end of the first end of hot device and the indoor heat exchanger be between one of them, the second end of the second flow path The second end with the 3rd refrigerant flow is connected.

10. air-conditioner according to claim 1, it is characterised in that also including commutation component, the commutation component has the The first of one connector to the 4th connector, first connector and the second exhaust passage and second refrigerant flow End is connected, and second connector is connected with the second end of the outdoor heat exchanger, and the 3rd connector is changed with the interior Second end of hot device is connected, the 4th connector be connected with first air intake passage or simultaneously with first air intake passage The second end with the 3rd refrigerant flow is connected.

11. air-conditioners according to claim 1, it is characterised in that the delivery space of first cylinder is V1, described the The delivery space of two cylinders is V2, and the V1, V2 meets：0.4<V2/V1<0.9.

12. air-conditioners according to claim 1, it is characterised in that also including the first electric capacity and the second electric capacity, described first The capacity of electric capacity more than second electric capacity capacity, when the compressor twin-tub transfiguration is compressed, first electric capacity or institute State the first electric capacity and motor that second electric capacity is the compressor is powered, when the compressor two-stage transfiguration is compressed, institute State the first electric capacity or motor that second electric capacity is the compressor is powered.

13. air-conditioners according to claim 12, it is characterised in that the capacity of first electric capacity is C1, described second The capacity of electric capacity is C2, and the C1, C2 meets：0.2<C2/(C1+C2)<0.8.

14. air-conditioners according to claim 12, it is characterised in that the motor has operation end, common port and startup End, the first end of first electric capacity is connected with the first end of second electric capacity and forms first node, the first node Be connected with the zero line side and the operation end of the power supply respectively, the second end of second electric capacity by first switch with it is described Second end of the first electric capacity is connected and forms Section Point, and the Section Point is connected with the start end of the motor, the electricity The zero line in source is connected with the common port.

15. air-conditioners according to claim 14, it is characterised in that the second end of first electric capacity passes through second switch It is connected to the Section Point.