CN207963224U - Air conditioner - Google Patents

Abstract

The utility model discloses a kind of air conditioners, including：Compressor；Outdoor heat exchanger and indoor heat exchanger；There is entrance, gas vent and liquid outlet, entrance to be connected with another in the first end of outdoor heat exchanger and the first end of indoor heat exchanger for gas-liquid separator, gas-liquid separator, and gas vent is connected with gas returning port；First throttle element, first throttle element are connected between the second end of outdoor heat exchanger and the second end of indoor heat exchanger；First subcooler, first subcooler includes the first refrigerant flow and the second refrigerant flow mutually to exchange heat, first refrigerant flow is connected between first throttle element and the second end of outdoor heat exchanger, and one end of the second refrigerant flow is connected with liquid outlet and the other end is connected to the gas phase zone of gas-liquid separator.Air conditioner according to the present utility model can not only be subcooled the refrigerant in the first refrigerant flow, and do not sacrifice the heat exchange amount of indoor heat exchanger when air conditioner freezes, and then can effectively realize energy saving.

Description

Air conditioner

Technical field

The utility model is related to refrigeration technology field more particularly to a kind of air conditioners.

Background technology

The restriction effect of air conditioner is to influence a key factor of system performance, and enter the flow-like before throttling set State influences restriction effect especially pronounced.If being gas-liquid mixture, the throttling of throttling set into the refrigerant before throttling set Ability will reduce, and the exchange capability of heat of heat exchanger also declines therewith.Therefore can be improved by increasing the degree of supercooling for the preceding fluid that throttles Restriction effect, and then improve the performance of air conditioner.

In the related technology, by outdoor heat exchanger export increase plate change, the heat transmission equipments such as double pipe, and from outdoor heat exchange Device outlet draws a part of fluid and carries out throttling cooling using as low-temperature receiver, to when air conditioner freezes, to from outdoor heat exchanger Fluid out is subcooled.However, outdoor heat exchanger export increase plate change, heat transmission equipments such as double pipe and from outdoor heat exchange A part of refrigerant heat exchanger indoors can be lost when air conditioner freezes for scheme after device extension flow restriction as low-temperature receiver Heat exchange amount, therefore the energy-saving effect of whole system is little.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries Go out a kind of air conditioner, the air conditioner can not only be subcooled the refrigerant in the first refrigerant flow, and not sacrificial in refrigeration The heat exchange amount of domestic animal indoor heat exchanger, and then can effectively realize energy saving.

According to the air conditioner of the utility model embodiment, including：Compressor, the compressor have exhaust outlet and return-air Mouthful；In the first end of outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger and the indoor heat exchanger One of them is connected with the exhaust outlet；Gas-liquid separator, the gas-liquid separator have entrance, gas vent 4b and liquid discharge Mouthful, the entrance is connected with another in the first end of the outdoor heat exchanger and the first end of the indoor heat exchanger, institute Gas vent 4b is stated with the gas returning port to be connected；First throttle element, the first throttle element are connected on the outdoor heat exchange Between the second end of device and the second end of the indoor heat exchanger；First subcooler, first subcooler include mutually heat exchange The first refrigerant flow and the second refrigerant flow, first refrigerant flow is connected on the first throttle element and the outdoor Between the second end of heat exchanger, one end of second refrigerant flow is connected with the liquid outlet and the other end and the gas-liquid The gas phase zone of separator is connected to.

According to the air conditioner of the utility model embodiment, by the way that gas-liquid separator and the first subcooler, and the first mistake is arranged Cooler includes the first refrigerant flow and the second refrigerant flow mutually to exchange heat, the first refrigerant flow be connected on first throttle element and Between the second end of outdoor heat exchanger, one end of the second refrigerant flow is connected with liquid outlet and the other end and gas-liquid separator Gas phase zone is connected to, as a result, when air conditioner freezes, by the liquid refrigerants of liquid outlet outflow when flowing through the second refrigerant flow, Refrigerant in first refrigerant flow can be subcooled, advantageously ensure that the refrigerant into first throttle element is all liquid, together When do not sacrifice the heat exchange amount of indoor heat exchanger, and then can effectively realize liquid refrigerants that is energy saving, and going out through gas-liquid separator separates By exchanging heat with the refrigerant in the first refrigerant flow when the second refrigerant flow, operative liquid refrigerant is converted into gaseous state and can return It is recycled in compressor, to which the inspiratory capacity of air conditioner can be improved, the effective rate of utilization of gas-liquid separator can be improved, in turn Be conducive to improve the performance of air conditioner.

In some embodiments of utility model, the air conditioner be single-cooling air-conditioner, the first of the outdoor heat exchanger End is connected with the exhaust outlet, and the first end of the indoor heat exchanger is connected with the entrance.

In some embodiments of the utility model, air conditioner further includes commutation component, and the commutation component has first Valve port to the 4th valve port, first valve port is connected to one of in the second valve port and third valve port, the 4th valve port It is connected to another in second valve port and the third valve port, first valve port is connected with the exhaust outlet, described Second valve port is connected with the first end of the outdoor heat exchanger, the first end phase of the third valve port and the indoor heat exchanger Even, the 4th valve port is connected with the entrance.

Specifically, one end of second refrigerant flow is connected by the first pipeline with the liquid outlet, and described second The other end of refrigerant flow is connected to by the second pipeline with the gas phase zone；Wherein, first pipeline or second pipeline On be in series with the first control valve, when the air conditioner is in refrigeration mode, first control valve is opened.

In some specific embodiments of the utility model, air conditioner further includes the second subcooler, second subcooler Including the third refrigerant flow and the 4th refrigerant flow mutually to exchange heat, the third refrigerant flow is connected on the first throttle member Between part and the second end of the indoor heat exchanger, one end of the 4th refrigerant flow passes through third pipeline and the liquid discharge Mouth is connected and the other end is connected to by the 4th pipeline with the gas phase zone of the gas-liquid separator；

Wherein, it is in series with the second control valve on the third pipeline or the 4th pipeline, system is in the air conditioner When chill formula, second control valve is closed；When the air conditioner is in heating mode, second control valve is opened and institute State the closing of the first control valve.

In some alternative embodiments of the utility model, second control valve is connected on the third pipeline.

Specifically, second control valve is electric expansion valve or heating power expansion valve with reducing pressure by regulating flow function.

Optionally, it is in series with the second restricting element on the third pipeline.

In some alternative embodiments of the utility model, refrigerant in the third refrigerant flow and the 4th refrigerant flow Flow direction is opposite.

In some alternative embodiments of the utility model, first control valve is connected on first pipeline.

Specifically, first control valve is electric expansion valve or heating power expansion valve with reducing pressure by regulating flow function.

In some alternative embodiments of the utility model, the first throttle element be the first one-way throttle valve, from On first refrigerant flow to the direction of the indoor heat exchanger, the first one-way throttle valve one-way throttle；

Be in series with the second one-way throttle valve between first refrigerant flow and the second end of the outdoor heat exchanger, from On first refrigerant flow to the direction of the outdoor heat exchanger, the second one-way throttle valve one-way throttle.

In some embodiments of the utility model, gone here and there between one end and the liquid outlet of second refrigerant flow It is associated with third restricting element.

In some embodiments of the utility model, the flow direction of refrigerant in first refrigerant flow and the second refrigerant flow On the contrary.

In some embodiments of the utility model, the first throttle element is capillary, electric expansion valve or heating power Expansion valve.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment Become apparent and is readily appreciated that, wherein：

Fig. 1 is according to the structural schematic diagram of the air conditioner of the utility model some embodiments, and wherein air conditioner is single cold sky Adjust device；

Fig. 2 is the cooling flow schematic diagram according to the air conditioner of the utility model other embodiments；

Fig. 3 is the heating flow diagram of middle air conditioner according to fig. 2；

Fig. 4 is according to the structural schematic diagram of the air conditioner of the other embodiment of the utility model, and wherein air conditioner is changes in temperature Air conditioner；

Fig. 5 is according to the structural schematic diagram of the air conditioner of the utility model still other embodiments, and wherein air conditioner is changes in temperature Air conditioner；

Reference numeral：

Air conditioner 100；

Compressor 1；Exhaust outlet 1a；Gas returning port 1b；

Outdoor heat exchanger 2；

Indoor heat exchanger 3；

Gas-liquid separator 4；Entrance 4a；Gas vent 4b；Liquid outlet 4c；First pipeline 41；Second pipeline 42；Low pressure is steamed Vapour air inlet pipe 43；Low-pressure steam escape pipe 44；

First throttle element 5；

First subcooler 6；First refrigerant flow 61；Second refrigerant flow 62；

Third restricting element 7；

Commutate component 8；First valve port 81；Second valve port 82；Third valve port 83；4th valve port 84；

Second subcooler 9；Third refrigerant flow 91；4th refrigerant flow 92；

Second one-way throttle valve 101；

First control valve 102；

Second control valve 103；

Second restricting element 104；

Third pipeline 105；

4th pipeline 106.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term "upper", "lower", "vertical", "horizontal", "top", The orientation or positional relationship of the instructions such as "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just In description the utility model and simplify description, specific side must be had by not indicating or implying the indicated device or element Position, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, define " first ", The feature of " second " can explicitly or implicitly include one or more this feature.In the description of the present invention, Unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

Below with reference to Fig. 1-Fig. 5 descriptions according to the air conditioner 100 of the utility model embodiment, air conditioner 100 can be used for Adjust the temperature of indoor environment.

As Figure 1-Figure 5, may include that compressor 1, outdoor are changed according to the air conditioner of the utility model embodiment 100 Hot device 2, indoor heat exchanger 3, gas-liquid separator 4, first throttle element 5 and the first subcooler 6.

Compressor 1 has exhaust outlet 1a and gas returning port 1b, and refrigerant can enter in compressor 1 from gas returning port 1b, through compressor 1 The refrigerant of compressed high temperature and pressure can be discharged from exhaust outlet 1a.

It is connected with exhaust outlet 1a one of in the first end of outdoor heat exchanger 2 and the first end of indoor heat exchanger 3. That is, it is possible to be that the first end of outdoor heat exchanger 2 is connected with exhaust outlet 1a, can also be indoor heat exchanger 3 first end with Exhaust outlet 1a is connected.

Gas-liquid separator 4 has entrance 4a, gas vent 4b and a liquid outlet 4c, and the of entrance 4a and outdoor heat exchanger 2 One end is connected with another in the first end of indoor heat exchanger 3, and gas vent 4b is connected with gas returning port 1b.It in other words, can be with It is that entrance 4a is connected with the first end of outdoor heat exchanger 2, gas vent 4b is connected with gas returning port 1b, can also be entrance 4a and room The first end of interior heat exchanger 3 is connected, and gas vent 4b is connected with gas returning port 1b.For example, as shown in Figure 1, entrance 4a passes through low pressure Steam inlet duct 43 is connected with the first end of indoor heat exchanger 3, and gas vent 4b passes through low-pressure steam escape pipe 44 and compressor 1 Gas returning port 1b be connected.It is understood that the refrigerant for entering gas-liquid separator 4 by entrance 4a can be in gas-liquid separator 4 in fact Existing gas-liquid separation, and gas phase zone and liquid phase region are formed in gas-liquid separator 4.

As Figure 1-Figure 5, first throttle element 5 be connected on outdoor heat exchanger 2 second end and indoor heat exchanger 3 Between two ends, the first subcooler 6 includes the first refrigerant flow 61 and the second refrigerant flow 62 mutually to exchange heat, the first refrigerant flow 61 are connected between first throttle element 5 and the second end of outdoor heat exchanger 2, one end of the second refrigerant flow 62 and liquid outlet 4c is connected and the other end is connected to the gas phase zone of gas-liquid separator 4.

In some specific examples, as shown in Figure 1, air conditioner 100 is single-cooling air-conditioner, the first end of outdoor heat exchanger 2 (upper end shown in Fig. 1) is connected with exhaust outlet 1a, first end (upper end shown in Fig. 1) and the entrance 4a of indoor heat exchanger 3 Be connected, first throttle element 5 be connected on outdoor heat exchanger 2 second end (lower end shown in Fig. 1) and indoor heat exchanger 3 the Between two ends (lower end shown in Fig. 1), the first refrigerant flow 61 is connected on the of first throttle element 5 and outdoor heat exchanger 2 Between two ends, gas vent 4b is connected with gas returning port 1b, and one end of the second refrigerant flow 62 is connected and another with liquid outlet 4c End is connected to the gas phase zone of gas-liquid separator 4.

Specifically, air conditioner 100 is during refrigerating operaton, by the refrigerant of 1 compressed high temperature and pressure of compressor Outdoor heat exchanger 2 is discharged and flowed to from exhaust outlet 1a, by can exchange heat with outdoor air when outdoor heat exchanger 2, then may be used It flows into the first refrigerant flow 61 and exchanges heat with the refrigerant in the second refrigerant flow 62 in the first refrigerant flow 61, passed through after Indoor heat exchanger 3 is flowed into after crossing 5 reducing pressure by regulating flow of first throttle element, the refrigerant flowed out from indoor heat exchanger 3 passes through gas-liquid separation The entrance 4a of device 4 enters the separation that gas-liquid separator 4 realizes gaseous coolant and liquid refrigerants：Wherein, the gaseous state isolated is cold Matchmaker passes through the gas vent 4b of gas-liquid separator 4 and returns to compressor 1 by the gas returning port 1b of compressor 1；Due to the second refrigerant The dead weight of pressure difference and liquid refrigerants between the both ends of flow path 62, liquid of the liquid refrigerants isolated from gas-liquid separator 4 Body outlet 4c flows out and flows into the second refrigerant flow 62, and the liquid refrigerants in the second refrigerant flow 62 can be to the first refrigerant flow 61 In refrigerant be subcooled, heat absorption evaporation after refrigerant by the second refrigerant flow 62 the other end return to gas-liquid separator 4 Gas phase zone and realize carry out gas-liquid separation again, it is reciprocal with this.

As a result, when air conditioner 100 freezes, the liquid refrigerants flowed out by liquid outlet 4c is flowing through the second refrigerant flow 62 When, the refrigerant in the first refrigerant flow 61 can be subcooled, advantageously ensure that the refrigerant into first throttle element 5 is all liquid State, while the heat exchange amount of indoor heat exchanger 2 is not sacrificed, and then can effectively realize liquid that is energy saving, and being isolated through gas-liquid separator 4 State refrigerant exchanges heat when passing through the second refrigerant flow 62 with the refrigerant in the first refrigerant flow 61, the refrigerant warp after heat absorption evaporation The other end for crossing the second refrigerant flow 62 enters the gas phase zone of gas-liquid separator 4 and realizes gas-liquid separation, consequently facilitating more Gaseous coolant enters the gas returning port 1b of compressor 1, to which the inspiratory capacity of compressor 1 can be improved, improve the effective of gas-liquid separator 4 Utilization rate, and then be conducive to improve the performance of air conditioner 100.

In other specific embodiments, as Figure 2-Figure 5, air conditioner 100 is heating and air conditioner.Air conditioner 100 Further include commutation component 8, commutation component 8 have 81 to the 4th valve port 84 of the first valve port, the first valve port 81 and the second valve port 82 and It being connected to one of in third valve port 83, the 4th valve port 84 is connected to another in the second valve port 82 and third valve port 83, That is, when the first valve port 81 is connected to the second valve port 82, third valve port 83 is connected to the 4th valve port 84, when the first valve port 81 with third valve port 83 when being connected to, and the second valve port 82 is connected to the 4th valve port 84.

First valve port 81 is connected with exhaust outlet 1a, and the first end of the second valve port 82 and outdoor heat exchanger 2 (is shown in Fig. 2-Fig. 5 The upper end gone out) it is connected, third valve port 83 is connected with the first end (upper end shown in Fig. 2-Fig. 5) of indoor heat exchanger 3, the 4th valve Mouth 84 is connected with entrance 4a.

Preferably, commutation component is four-way valve, and when four-way valve powers off, the first valve port 81 is connected to the second valve port 82, the Four valve ports 84 are connected to third valve port 83, and when four-way valve is powered, the first valve port 81 is connected to third valve port 83, the 4th valve port 84 It is connected to the second valve port 82.But it is understood that commutation component 8 can also be formed as other elements, as long as having first 81 to the 4th valve port 84 of valve port and it can realize commutation.

Since the first valve port 81 of commutation component 8 can commutate with one of in the second valve port 82 and third valve port 83 Connection, the 4th valve port 84 is connected to another commutation in third valve port 83 and the second valve port 82, this so that air conditioner 100 can be with It is converted between refrigeration mode and heating mode, to realize the refrigerating function and heat-production functions of air conditioner 100.

First throttle element 5 is connected on the second end (lower end shown in Fig. 2-5) and indoor heat exchanger of outdoor heat exchanger 2 Between 3 second end (lower end shown in Fig. 2-5), the first refrigerant flow 61 is connected on first throttle element 5 and outdoor heat exchange Between the second end of device 2.

When air conditioner 100 is in refrigeration mode, for example, as Figure 2-Figure 5, the first valve port 81 and 82 phase of the second valve port Connection, third valve port 83 are connected with the 4th valve port 84, and the refrigerant by 1 compressed high temperature and pressure of compressor passes through exhaust outlet 1a and the first valve port 81 flow direction commutation component 8 simultaneously flow to outdoor heat exchanger 2 by the second valve port 82, and refrigerant is in outdoor heat exchanger 2 With outdoor air exchange heat after, then flow into the first refrigerant flow 61 and in the first refrigerant flow 61 in the second refrigerant flow 62 Refrigerant exchange heat, flow to later first throttle element 5 and after 5 reducing pressure by regulating flow of first throttle element, flow into indoor heat exchange Device 3 is exchanged heat with room air to adjust indoor environment temperature in turn, and the refrigerant flowed out from indoor heat exchanger 3 passes through third valve successively Mouth 83 and the entrance 4a of the 4th valve port 84 and gas-liquid separator 4 enter gas-liquid separator 4 and realize that gaseous coolant and liquid are cold The separation of matchmaker：Wherein, gas vent 4b of the gaseous coolant isolated by gas-liquid separator 4 and the return-air by compressor 1 Mouth 1b returns to compressor 1；Due to the dead weight of pressure difference and liquid refrigerants between the both ends of the second refrigerant flow, isolate Liquid refrigerants flows out from the liquid outlet 4c of gas-liquid separator 4 and flows into the second refrigerant flow 62, in the second refrigerant flow 62 The refrigerant in the first refrigerant flow 61 can be subcooled in liquid refrigerants, and the refrigerant after heat absorption evaporation passes through the second refrigerant flow 62 The other end back to gas-liquid separator 4 gas phase zone and again realize carry out gas-liquid separation, with this back and forth.

As a result, when air conditioner 100 is that heating and air conditioner and air conditioner 100 freeze, the liquid that is flowed out by liquid outlet 4c State refrigerant can be subcooled the refrigerant in the first refrigerant flow 61, advantageously ensure that system when flowing through the second refrigerant flow 62 The refrigerant for entering first throttle element 5 when cold is all liquid, while not sacrificing the heat exchange amount of indoor heat exchanger 2, and then can be effective Realize it is energy saving, be conducive to improve air conditioner 100 performance.And the liquid refrigerants isolated through gas-liquid separator 4 passes through second It exchanges heat with the refrigerant in the first refrigerant flow 61 when refrigerant flow 62, operative liquid refrigerant is converted into gaseous state and can return to pressure Contracting machine 1 recycles, to the effective rate of utilization that the inspiratory capacity of compressor 1 can be improved, gas-liquid separator 4 can be improved, Jin Eryou Conducive to the performance of improvement air conditioner 100.

According to the air conditioner 100 of the utility model embodiment, by being arranged gas-liquid separator 4 and the first subcooler 6, and the One subcooler 6 includes the first refrigerant flow 61 and the second refrigerant flow 62 that mutually exchange heat, and the first refrigerant flow 61 is connected on the Between one restricting element 5 and the second end of outdoor heat exchanger 2, one end of the second refrigerant flow 62 is connected and another with liquid outlet 4c One end is connected to the gas phase zone of gas-liquid separator 4, and as a result, when air conditioner 100 freezes, the liquid flowed out by liquid outlet 4c is cold Matchmaker can be subcooled the refrigerant in the first refrigerant flow 61 when flowing through the second refrigerant flow 62, advantageously ensure that into The refrigerant of one restricting element 5 is all liquid, while not sacrificing the heat exchange amount of indoor heat exchanger 2, so can effectively realize it is energy saving, and It is carried out with the refrigerant in the first refrigerant flow 61 when the liquid refrigerants isolated through gas-liquid separator 4 passes through the second refrigerant flow 62 Heat exchange, operative liquid refrigerant be converted into gaseous state and can return to compressor 1 recycling, to can be improved compressor 1 inspiratory capacity, The effective rate of utilization of gas-liquid separator 4 can be improved, and then be conducive to improve the performance of air conditioner 100.

In some embodiments of the utility model, one end of the second refrigerant flow 62 (such as it is left shown in Fig. 4-Fig. 5 End) it is connected with liquid outlet 4c by the first pipeline 41, the other end of the second refrigerant flow 62 (such as shown in Fig. 4-Fig. 5 Right end) it is connected to gas phase zone by the second pipeline 42, wherein it is in series with the first control valve on the first pipeline 41 or the second pipeline 42 102, the first control valve 102 can control the break-make of the second refrigerant flow 62.When air conditioner 100 is in refrigeration mode, the first control Valve 102 processed opens the liquid refrigerants in gas-liquid separator 4 and can flow to the second refrigerant flow by liquid outlet 4c and return to gas Phase region；When air conditioner 100 is in heating mode, the first control valve 102 is closed, and does not have refrigerant stream in the second refrigerant flow 62 It is logical, that is to say, that when air conditioner 100 is in heating mode, the refrigerant in the second refrigerant flow 62 is not to the first refrigerant flow Refrigerant in 61 is subcooled.

Optionally, third restricting element 7, i.e., first are in series between one end and liquid outlet 4c of the second refrigerant flow 62 Third restricting element 7 is also in series on pipeline 41, as a result, when air conditioner 100 freezes, the first control valve 102 is opened, thus from The liquid refrigerants of liquid outlet 4c outflows can be low by the reducing pressure by regulating flow of third restricting element 7 to form the refrigerant of low-temp low-pressure The refrigerant of warm low pressure can fully exchange heat after entering in the second refrigerant flow 62 with the refrigerant in the first refrigerant flow 61, improve the The supercooling effect of the refrigerant in the first refrigerant flow of refrigerant pair 61 in two refrigerant flows 62, when to be further ensured that refrigeration into Enter all liquid refrigerants of refrigerant of first throttle element.

In some specific embodiments of the utility model, as shown in figure 5, air conditioner 100 further includes the second subcooler 9, Second subcooler 9 includes the third refrigerant flow 91 and the 4th refrigerant flow 92 mutually to exchange heat, and third refrigerant flow 91 is connected on Between first throttle element 5 and the second end of indoor heat exchanger 3, one end of the 4th refrigerant flow 92 by third pipeline 105 with Liquid outlet 4c is connected and the other end is connected to by the 4th pipeline 106 with the gas phase zone of gas-liquid separator 4；Wherein, third pipeline 105 or the 4th the second control valve 103 is in series on pipeline 106.When air conditioner 100 is in refrigeration mode, the second control valve 103 It closes and the first control valve 102 is opened, the liquid refrigerants flowed out by liquid outlet 4c can flow through the second refrigerant flow 62, and can be right Refrigerant in first refrigerant flow 61 is subcooled, and the refrigerant that first throttle element 5 is entered when thus advantageously ensuring that refrigeration is complete For liquid；When air conditioner 100 is in heating mode, the second control valve 103 is opened and the first control valve 102 is closed, by liquid The 4th refrigerant flow 92 can be flowed by third pipeline 105 by exporting the liquid refrigerants of 4c outflows, and can be to third refrigerant flow 91 In refrigerant be subcooled, thus advantageously ensure that the refrigerant for entering first throttle element 5 when heating is all liquid.As a result, when When air conditioner 100 is in refrigeration or heating mode, advantageously ensure that the refrigerant into first throttle element 5 is all liquid, together When do not sacrifice the heat exchange amount of indoor heat exchanger 2, and then can effectively realize it is energy saving, be conducive to improve air conditioner 100 performance.

In some alternative embodiments of the utility model, as shown in figure 5, the second control valve 103 is connected on third pipeline On 105.

Specifically, the second control valve 103 is to have the function of that the electric expansion valve of reducing pressure by regulating flow and opening and closing function or heating power are swollen Swollen valve.As a result, when air conditioner 100 is in heating mode, the second control valve 103 is opened and the first control valve 102 is closed, from liquid The refrigerant of body outlet 4c discharges flows to third pipeline 103, and is realizing reducing pressure by regulating flow to form low temperature in the second control valve 103 The refrigerant of low pressure, the refrigerant of low-temp low-pressure can fill after entering in the 4th refrigerant flow 92 with the refrigerant in third refrigerant flow 91 Divide heat exchange, improve supercooling effect of the refrigerant in the 4th refrigerant flow 92 to the refrigerant in third refrigerant flow 91, thus into one Step ensures to enter all liquid refrigerants of refrigerant of first throttle element 5 when heating, and then is conducive to improve the property of air conditioner 100 Energy.

Optionally, the second restricting element 104 is in series on third pipeline 105, the second control valve 103 is on-off valve.As a result, When air conditioner 100 is in heating mode, the second control valve 103 is opened, and the refrigerant being discharged from liquid outlet 4c flows to third pipe Road 105, and realize reducing pressure by regulating flow in the second restricting element 104, the refrigerant for flowing to the 4th refrigerant flow 92 can be further decreased Temperature, to be conducive to the mistake for further increasing the refrigerant in the 4th refrigerant flow 92 to the refrigerant in third refrigerant flow 91 Cold effect, and then the degree of supercooling for the refrigerant for flowing into first throttle element 5 is improved, and then be conducive to improve the performance of air conditioner 100.

In some alternative embodiments of the utility model, refrigerant in third refrigerant flow 91 and the 4th refrigerant flow 92 Flow direction is opposite.As a result, when air conditioner 100 is in refrigeration, be conducive to the refrigerant in the 4th refrigerant flow 92 and third refrigerant flow The abundant heat exchange of refrigerant in 91 improves supercooling of the refrigerant in the 4th refrigerant flow 92 to the refrigerant in third refrigerant flow 91 Effect, and then the degree of supercooling of the refrigerant before flowing into first throttle element 5 is improved, and then be conducive to improve the performance of air conditioner 100.

In some specific embodiments of the utility model, the first control valve 102 is connected on the first pipeline 41.Specifically Ground, the first control valve 102 are electric expansion valve or heating power expansion valve with reducing pressure by regulating flow function.First control valve 102 as a result, It can not only be opened and closed, and when the first control valve 102 is opened, the first control valve 102 also has the function of reducing pressure by regulating flow, works as air-conditioning When device 100 is in refrigeration mode, the first control valve 102 is opened, and the liquid refrigerants of liquid outlet 4c is passing through the first control valve 102 When can realize reducing pressure by regulating flow, the temperature for the refrigerant for flowing to the second refrigerant flow 62 can be further decreased, to be conducive to further The supercooling effect of the refrigerant in the first refrigerant flow of refrigerant pair 61 in the second refrigerant flow 62 is improved, and then improves and flows into first The degree of supercooling of the refrigerant of restricting element 5, and then be conducive to improve the performance of air conditioner 100.

In some alternative embodiments of the utility model, as shown in Figures 2 and 3, first throttle element 5 is first unidirectional Throttle valve, from the first refrigerant flow 61 to the direction of indoor heat exchanger 3, the first one-way throttle valve one-way throttle；First is cold The second one-way throttle valve 101 is in series between matchmaker's flow path 61 and the second end of outdoor heat exchanger 2, from the first refrigerant flow 61 to On the direction of outdoor heat exchanger 2,101 one-way throttle of the second one-way throttle valve.That is, being in refrigeration mould in air conditioner 100 When formula, first throttle element 5 is depressured to flowing through its coolant throttle, and the second one-way throttle valve 101 is not saved to flowing through its refrigerant Stream decompression；When air conditioner 100 is in heating mode, for first throttle element 5 to flowing through its refrigerant not reducing pressure by regulating flow, second is single It is depressured to throttle valve 101 to flowing through its coolant throttle.No matter air conditioner 100 is in refrigeration mode or heating mode as a result, When, it can guarantee the liquid refrigerants flowed out from liquid outlet 4c when flowing through the second refrigerant flow 62 in pair the first refrigerant flow 61 Refrigerant be subcooled, to advantageously ensure that enter first throttle element 5 refrigerant be all liquid, be conducive to improve air conditioner 100 performance, and it is simple in structure, advantageously reduce production cost.

In some embodiments of the utility model, it is in series between one end and liquid outlet 4c of the second refrigerant flow 62 Third restricting element 7.As a result, when air conditioner 100 freezes, the liquid refrigerants flowed out from liquid outlet 4c can pass through third throttling For the reducing pressure by regulating flow of element 7 to form the refrigerant of low-temp low-pressure, the refrigerant of low-temp low-pressure can after entering in the second refrigerant flow 62 It fully exchanges heat with the refrigerant in the first refrigerant flow 61, to be conducive to further increase the refrigerant pair in the second refrigerant flow 62 The supercooling effect of refrigerant in first refrigerant flow 61, and then the degree of supercooling of the refrigerant before flowing into first throttle element 5 is improved, into And be conducive to improve the performance of air conditioner 100.

In some embodiments of the utility model, the flow direction of refrigerant in the first refrigerant flow 61 and the second refrigerant flow 62 On the contrary.As a result, when air conditioner 100 freezes, be conducive in the refrigerant and the first refrigerant flow 61 in the second refrigerant flow 61 The abundant heat exchange of refrigerant is conducive to the supercooling for improving the refrigerant in the first refrigerant flow of refrigerant pair 61 in the second refrigerant flow 62 Effect, and then the degree of supercooling of the refrigerant before flowing into first throttle element 5 is improved, and then be conducive to improve the performance of air conditioner 100.

In some embodiments of the utility model, first throttle element 5 is capillary, electric expansion valve or thermal expansion Valve.Be conducive to improve the reducing pressure by regulating flow effect of first throttle element 5 as a result,.

In some specific embodiments of the utility model, entrance 4a is located at the top of gas-liquid separator 4, low-pressure steam into Tracheae 43 extend into the middle part of gas-liquid separator 4 from entrance 4a；Gas vent 4b is also provided in the top of gas-liquid separator 4, low pressure Steam outleting pipe 44 is inserted into the top of gas-liquid separator 4 from gas vent 4b, and low-pressure steam escape pipe 44 stretches into gas The end of one end in liquid/gas separator 4 carries upward elbow；Liquid outlet 4c is located at the bottom of gas-liquid separator 4, the first pipe Road 41 is connected directly with liquid outlet 4c；Second pipeline 42 is inserted into from the middle part of gas-liquid separator 4 in gas-liquid separator 4, and The part of horizontal setting and its free end band that second pipeline 42 stretches into gas-liquid separator 4 have downward elbow.It can be improved as a result, The effect of 4 gas-liquid separation of gas-liquid separator.

Below with reference to the accompanying drawings 1-5 carries out specifically the concrete structure of the air conditioner 100 of the utility model some embodiments It is bright.Of course, it should be understood that described below be intended for explaining the utility model, and it cannot function as one to the utility model Kind limitation.

Embodiment 1

As shown in Figure 1, according to the air conditioner 100 of the utility model embodiment, including compressor 1, outdoor heat exchanger 2, room Interior heat exchanger 3, gas-liquid separator 4, first throttle element 5, the first subcooler 6 and third restricting element 7.Wherein, first throttle Element 5 and third restricting element 7 are capillary.

As shown in Figure 1, there is compressor 1 exhaust outlet 1a and gas returning port 1b, refrigerant can enter compressor 1 from gas returning port 1b Interior, the refrigerant through 1 compressed high temperature and pressure of compressor can be discharged from exhaust outlet 1a.The first end of outdoor heat exchanger 2 and exhaust Mouth 1a is connected.

As shown in Figure 1, there is gas-liquid separator 4 entrance 4a, gas vent 4b and liquid outlet 4c, entrance 4a to pass through low pressure Steam inlet duct 43 is connected with the first end of indoor heat exchanger 3, and gas vent 4b passes through low-pressure steam escape pipe 44 and compressor 1 Gas returning port 1b be connected, first throttle element 5 be connected on outdoor heat exchanger 2 second end and indoor heat exchanger 3 second end it Between.

Specifically, entrance 4a is located at the top of gas-liquid separator 4, and low-pressure steam air inlet pipe 43 extend into gas-liquid from entrance 4a The middle part of separator 4；Gas vent 4b is also provided in the top of gas-liquid separator 4, and low-pressure steam escape pipe 44 is from gas vent 4b It is inserted into the top of gas-liquid separator 4, and the end of one end for stretching into gas-liquid separator 4 of low-pressure steam escape pipe 44 carries Upward elbow；Liquid outlet 4c is located at the bottom of gas-liquid separator 4.

First subcooler 6 includes the first refrigerant flow 61 and the second refrigerant flow 62 mutually to exchange heat, the first refrigerant flow 61 are connected between first throttle element 5 and the second end of outdoor heat exchanger 2, and one end of the second refrigerant flow 62 passes through the first pipe Road 41 is connected with liquid outlet 4c, and the other end of the second refrigerant flow 62 passes through the gas phase of the second pipeline 42 and gas-liquid separator 4 Area is connected to, and the second pipeline 42 is inserted into the middle part of gas-liquid separator 4, and the second pipeline 42 stretches into the part of gas-liquid separator 4 Horizontally disposed and its free end band has downward elbow.

Third restricting element 7 is connected on the first pipeline 41, refrigerant in the first refrigerant flow 61 and the second refrigerant flow 62 Flow direction it is opposite.

Specifically, the refrigerant by 1 compressed high temperature and pressure of compressor is discharged from exhaust outlet 1a and flows to outdoor and changes Hot device 2 then flows into the first refrigerant flow 61 and in the first refrigerant flow 61 after outdoor heat exchanger 2 and outdoor air heat exchange In exchange heat with the refrigerant in the second refrigerant flow 62, after after 5 reducing pressure by regulating flow of first throttle element, flow into indoor heat exchange Device 3 exchanges heat with room air to adjust indoor environment temperature in turn, then flows through low-pressure steam air inlet pipe 43 and enters gas-liquid separation Device 4 realizes the separation of gaseous coolant and liquid refrigerants：Wherein, the gaseous coolant isolated is steamed by the low pressure of gas-liquid separator 4 Vapour escape pipe 44 simultaneously returns to compressor 1 by the gas returning port 1b of compressor 1；Due to the pressure between the both ends of the second refrigerant flow The dead weight of force difference and liquid refrigerants, the liquid refrigerants isolated flow out from the liquid outlet 4c of gas-liquid separator 4 and flow to One pipeline 41, refrigerant flow into third restricting element 7 when flowing through the first pipeline 41, are flowed into after 7 reducing pressure by regulating flow of third restricting element The refrigerant in the first refrigerant flow 61 can be subcooled in second refrigerant flow 62, the liquid refrigerants in the second refrigerant flow 62, Refrigerant after heat absorption evaporation enters the gas phase zone of gas-liquid separator 4 and realize again by the second pipeline 42 carries out gas-liquid separation, It is reciprocal with this, it is thus achieved that cycle of the refrigerant in entire air conditioner 100.

Embodiment 2

As shown in Figures 2 and 3, according to the air conditioner of the utility model embodiment 100, including compressor 1, commutation component 8, Outdoor heat exchanger 2, indoor heat exchanger 3, gas-liquid separator 4, first throttle element 5, the first subcooler 6, the second one-way throttle valve 101 and third restricting element 7.As shown in Figures 2 and 3, compressor 1 has exhaust outlet 1a and gas returning port 1b, and refrigerant can be from return-air Mouth 1b enters in compressor 1, and the refrigerant through 1 compressed high temperature and pressure of compressor can be discharged from exhaust outlet 1a.Commutate component 8 With 81 to the 4th valve port 84 of the first valve port, connect one of in the first valve port 81 and the second valve port 82 and third valve port 83 Logical, the 4th valve port 84 is connected to another in the second valve port 82 and third valve port 83, and the first valve port 81 is connected with exhaust outlet 1a, Second valve port 82 is connected with the first end of outdoor heat exchanger 2, and third valve port 83 is connected with the first end of indoor heat exchanger 3.Third Restricting element 7 is capillary.

Gas-liquid separator 4 has entrance 4a, gas vent 4b and liquid outlet 4c, and as shown in Figures 2 and 3, entrance 4a is logical It crosses low pressure steam inlet duct 43 with the 4th valve port 84 to be connected, gas vent 4b passes through low-pressure steam escape pipe 44 and compressor 1 Gas returning port 1b is connected, and first throttle element 5 is connected between the second end of outdoor heat exchanger 2 and the second end of indoor heat exchanger 3.

Specifically, entrance 4a is located at the top of gas-liquid separator 4, and low-pressure steam air inlet pipe 43 extend into gas-liquid from entrance 4a The middle part of separator 4；Gas vent 4b is also provided in the top of gas-liquid separator 4, and low-pressure steam escape pipe 44 is from gas vent 4b It is inserted into the top of gas-liquid separator 4, and the end of one end for stretching into gas-liquid separator 4 of low-pressure steam escape pipe 44 carries Upward elbow；Liquid outlet 4c is located at the bottom of gas-liquid separator 4.

First subcooler 6 includes the first refrigerant flow 61 and the second refrigerant flow 62 mutually to exchange heat, the first refrigerant flow 61 are connected between first throttle element 5 and the second end of outdoor heat exchanger 2, and one end of the second refrigerant flow 62 passes through the first pipe Road 41 is connected with liquid outlet 4c, and the other end of the second refrigerant flow 62 is connected to by the second pipeline 42 with gas phase zone, the second pipe Road 42 is inserted into the middle part of gas-liquid separator 4, and the second pipeline 42 stretch into gas-liquid separator 4 part of horizontal setting and its from Downward elbow is carried by end.

Third restricting element 7 is connected on the first pipeline 41, refrigerant in the first refrigerant flow 61 and the second refrigerant flow 62 Flow direction it is opposite.

First throttle element 5 is the first one-way throttle valve, from the first refrigerant flow 61 to the direction of indoor heat exchanger 3 On, the first one-way throttle valve one-way throttle, the second one-way throttle valve 101 is connected on the first refrigerant flow 61 and outdoor heat exchanger 2 Second end between, from the first refrigerant flow 61 to the direction of outdoor heat exchanger 2, the unidirectional section of the second one-way throttle valve 101 Stream.In other words, when air conditioner 100 is in refrigeration mode, the first one-way throttle valve is depressured to flowing through its coolant throttle, and second One-way throttle valve 101 is to flowing through its refrigerant not reducing pressure by regulating flow；When air conditioner 100 heats, the first one-way throttle valve is to flowing through Reducing pressure by regulating flow, the second one-way throttle valve 101 are not depressured its refrigerant to flowing through its coolant throttle.

Specifically, when air conditioner 100 is in refrigeration mode, as shown in Fig. 2, the first valve port 81 and 82 phase of the second valve port Connection, third valve port 83 is connected with the 4th valve port 84, and the refrigerant by 1 compressed high temperature and pressure of compressor is from exhaust outlet 1a After discharge, flows to the first valve port 81 and flow to commutation component 8, outdoor heat exchanger 2 is flowed to by the second valve port 82 later, through outdoor Heat exchanger 2 then flows into the second one-way throttle valve 101, the second one-way throttle valve 101 is to flowing through its with after outdoor air heat exchange Reducing pressure by regulating flow, refrigerant do not flow directly into the first refrigerant flow 61 to refrigerant after the outflow of the second one-way throttle valve 101, and refrigerant is first It exchanges heat with the refrigerant in the second refrigerant flow 62 in refrigerant flow 61, then through first after the outflow of the first refrigerant flow 61 5 reducing pressure by regulating flow cocurrent of restricting element enters indoor heat exchanger 3, and heat exchanger 3 is interior indoors and room air heat exchange is with regulation room for refrigerant Interior environment temperature flows to low-pressure steam air inlet pipe 43 then in turn through third valve port 83, the 4th valve port 84, and enters gas-liquid point From device 4 to realize the separation of gaseous coolant and liquid refrigerants, wherein the gaseous coolant isolated is low by gas-liquid separator 4 Pressure steam outleting pipe 44 simultaneously returns to compressor 1 by the gas returning port 1b of compressor 1；Due between 62 both ends of the second refrigerant flow Pressure difference and liquid refrigerants dead weight, the liquid refrigerants isolated flows out cocurrent from the liquid outlet 4c of gas-liquid separator 4 To the first pipeline 41, refrigerant flows into third restricting element 7 when flowing through the first pipeline 41 and carries out reducing pressure by regulating flow, and it is cold to flow into second later The refrigerant in the first refrigerant flow 61 can be subcooled in matchmaker's flow path 62, the liquid refrigerants in the second refrigerant flow 62, and heat absorption is steamed Refrigerant after hair enters the gas phase zone of gas-liquid separator 4 and realize again by the second pipeline 42 carries out gas-liquid separation, past with this It is multiple, it is thus achieved that cycle of the refrigerant in entire air conditioner 100.

When air conditioner 100 is in heating mode, as shown in figure 3, the first valve port 81 is connected with third valve port 83, second Valve port 82 is connected with the 4th valve port 84, and the refrigerant by 1 compressed high temperature and pressure of compressor is discharged from exhaust outlet 1a, flow direction First valve port 81 simultaneously flows to commutation component 8, flows to indoor heat exchanger 3 by third valve port 83 to adjust the temperature of indoor environment later Degree, then flows into first throttle element 5, and first throttle element 5 is to flowing through its refrigerant not reducing pressure by regulating flow, and refrigerant is from first throttle Element 5 flows into the first refrigerant flow 61 after flowing out, refrigerant in the first refrigerant flow 61 with the refrigerant in the second refrigerant flow 62 It exchanges heat, refrigerant flows to the second one-way throttle valve 101 after the outflow of the first refrigerant flow 61 and through the second one-way throttle valve 101 Outdoor heat exchanger 2 is flowed into after reducing pressure by regulating flow, outdoor heat exchanger 2 exchanges heat with outdoor air, and the refrigerant after heat exchange passes through successively Second valve port 82, the 4th valve port 84 flow to low-pressure steam air inlet pipe 43 and enter gas-liquid separator 4 to realize gaseous coolant and liquid The separation of refrigerant, wherein the gaseous coolant isolated passes through the low-pressure steam escape pipe 44 of gas-liquid separator 4 and through overcompression The gas returning port 1b of machine 1 returns to compressor 1；Due between the both ends of the second refrigerant flow 62 pressure difference and liquid refrigerants from Weight, the liquid refrigerants isolated flow out from the liquid outlet 4c of gas-liquid separator 4 and flow to the first pipeline 41, and refrigerant flows through first Third restricting element 7 is flowed into when pipeline 41, the second refrigerant flow 62 is flowed into after 7 reducing pressure by regulating flow of third restricting element, second is cold The refrigerant in the first refrigerant flow 61 can be subcooled in liquid refrigerants in matchmaker's flow path 62, and the refrigerant after heat absorption evaporation is by the Two pipelines 42 enter in gas-liquid separator 4 and realize gas-liquid separation, it is thus achieved that refrigerant following in entire air conditioner 100 Ring.

Embodiment 3

As shown in figure 4, according to the air conditioner 100 of the utility model embodiment, including compressor 1, commutation component 8, outdoor Heat exchanger 2, indoor heat exchanger 3, gas-liquid separator 4, first throttle element 5, the first subcooler 6, the first control valve 102 and third Restricting element 7.First throttle element 5 and third restricting element 7 are capillary.

As shown in figure 4, there is compressor 1 exhaust outlet 1a and gas returning port 1b, refrigerant can enter compressor 1 from gas returning port 1b Interior, the refrigerant through 1 compressed high temperature and pressure of compressor can be discharged from exhaust outlet 1a.

The component 8 that commutates has 81 to the 4th valve port 84 of the first valve port, the first valve port 81 and the second valve port 82 and third valve port It is connected to one of in 83, the 4th valve port 84 is connected to another in the second valve port 82 and third valve port 83, the first valve port 81 are connected with exhaust outlet, and the second valve port 82 is connected with the first end of outdoor heat exchanger 2, third valve port 83 and indoor heat exchanger 3 First end is connected.Gas-liquid separator 4 have entrance 4a, gas vent 4b and liquid outlet 4c, entrance 4a by low-pressure steam into Tracheae 43 is connected with the 4th valve port 84, and gas vent 4b is connected by low-pressure steam escape pipe 44 with the gas returning port 1b of compressor 1.

Specifically, entrance 4a is located at the top of gas-liquid separator 4, and low-pressure steam air inlet pipe 43 extend into gas-liquid from entrance 4a The middle part of separator 4；Gas vent 4b is also provided in the top of gas-liquid separator 4, and low-pressure steam escape pipe 44 is from gas vent 4b It is inserted into the top of gas-liquid separator 4, and the end of one end for stretching into gas-liquid separator 4 of low-pressure steam escape pipe 44 carries Upward elbow；Liquid outlet 4c is located at the bottom of gas-liquid separator 4.

As shown in figure 4, the first subcooler 6 includes the first refrigerant flow 61 and the second refrigerant flow 62 mutually to exchange heat, the One refrigerant flow 61 is connected between first throttle element 5 and the second end of outdoor heat exchanger 2, one end of the second refrigerant flow 62 It is connected with liquid outlet 4c by the first pipeline 41, the other end of the second refrigerant flow 62 is connected by the second pipeline 42 with gas phase zone Logical, the second pipeline 42 is inserted into the middle part of gas-liquid separator 4, and the second pipeline 42 stretches into the part of horizontal of gas-liquid separator 4 It is arranged and its free end band has downward elbow.

Third restricting element 7 is connected on the first pipeline 41, and the first control valve 102 is connected on the first pipeline 41.First The flow direction of refrigerant is opposite in refrigerant flow 61 and the second refrigerant flow 62.

Specifically, as shown in figure 4, when air conditioner 100 is in refrigeration mode, the first control valve 102 is opened, the first valve Mouth 81 is connected with the second valve port 82, and third valve port 83 is connected with the 4th valve port 84, high by 1 compressed high temperature of compressor The refrigerant of pressure flows to the first valve port 81 and flows to commutation component 8, pass through the second valve port 82 later and flow to after exhaust outlet 1a discharges Outdoor heat exchanger 2 then flows into the first refrigerant flow 61, refrigerant is cold first after outdoor heat exchanger 2 and outdoor air heat exchange It exchanges heat with the refrigerant in the second refrigerant flow 62 in matchmaker's flow path 61, then through first segment after the outflow of the first refrigerant flow 61 After 5 reducing pressure by regulating flow of fluid element, flow into indoor heat exchanger 3 so that with room air exchange heat to adjust indoor environment temperature, then according to It is secondary to flow to low-pressure steam air inlet pipe 43 by third valve port 83, the 4th valve port 84, and flow into gas-liquid separator 4 to realize that gaseous state is cold The separation of matchmaker and liquid refrigerants, wherein the gaseous coolant isolated by gas-liquid separator 4 low-pressure steam escape pipe 44, simultaneously Compressor 1 is returned to by the gas returning port 1b of compressor 1；Due between 62 both ends of the second refrigerant flow pressure difference and liquid it is cold The dead weight of matchmaker, the liquid refrigerants isolated flow out from the liquid outlet 4c of gas-liquid separator 4 and flow to the first pipeline 41, refrigerant stream Reducing pressure by regulating flow is carried out through flowing into third restricting element 7 when the first pipeline 41, second is flowed into after 7 reducing pressure by regulating flow of third restricting element The refrigerant in the first refrigerant flow 61 can be subcooled in refrigerant flow 62, the liquid refrigerants in the second refrigerant flow 62, absorb heat Refrigerant after evaporation enters the gas phase zone of gas-liquid separator 4 and realize again by the second pipeline 42 carries out gas-liquid separation, with this Back and forth, it is thus achieved that cycle of the refrigerant in entire air conditioner 100.

When air conditioner 100 is in heating mode, as shown in figure 4, the first valve port 81 is connected with third valve port 83, second Valve port 82 is connected with the 4th valve port 84, and the first control valve 102 is closed, and circulates without refrigerant in the second refrigerant flow 62, through overvoltage The refrigerant of 1 compressed high temperature and pressure of contracting machine is discharged from exhaust outlet 1a, flows to the first valve port 81 and flows to commutation component 8, later Indoor heat exchanger 3 is flowed to adjust the temperature of indoor environment by third valve port 83, then flows into first throttle element 5, and pass through The first refrigerant flow 61 is flowed into after 5 reducing pressure by regulating flow of first throttle element, subsequently flows into outdoor heat exchanger 2 and in outdoor heat exchanger 2 It is interior to exchange heat with outdoor air, refrigerant after heat exchange passes through the second valve port 82 successively and the 4th valve port 84 flow to low-pressure steam into Tracheae 43 simultaneously enters gas-liquid separator 4 to realize the separation of gaseous coolant and liquid refrigerants, and the gaseous coolant isolated passes through gas The low-pressure steam escape pipe 44 of liquid/gas separator 4 simultaneously returns to compressor 1 by the gas returning port 1b of compressor 1.

Embodiment 4

The present embodiment and the structure of embodiment 3 are substantially the same, and the difference is that only：Cancel setting for the first control valve 102 The electric expansion valve or heating power set, while being set as third restricting element 7 that there is opening and closing function and reducing pressure by regulating flow function simultaneously Expansion valve.

When air conditioner 100 is in refrigeration mode, 7 reducing pressure by regulating flow of third restricting element is in heating mould in air conditioner 100 When formula, third restricting element 7 is closed.

Embodiment 5

According to the air conditioner 100 of the utility model embodiment, including compressor 1, commutation component 8, outdoor heat exchanger 2, room Interior heat exchanger 3, gas-liquid separator 4, first throttle element 5, the first subcooler 6, the first control valve 102, the second subcooler 9 and Two control valves 103.

As shown in figure 5, there is compressor 1 exhaust outlet 1a and gas returning port 1b, refrigerant can enter compressor 1 from gas returning port 1b Interior, the refrigerant through 1 compressed high temperature and pressure of compressor can be discharged from exhaust outlet 1a.Commutate component 8 have the first valve port 81 to 4th valve port 84, the first valve port 81 are connected to one of in the second valve port 82 and third valve port 83, the 4th valve port 84 and Two valve ports 82 are connected to another in third valve port 83, and the first valve port 81 is connected with exhaust outlet 1a, the second valve port 82 and outdoor The first end of heat exchanger 2 is connected, and third valve port 83 is connected with the first end of indoor heat exchanger 3.

There is gas-liquid separator 4 entrance 4a, gas vent 4b and liquid outlet 4c, entrance 4a to pass through low-pressure steam air inlet pipe 43 are connected with the 4th valve port 84, and gas vent 4b is connected by low-pressure steam escape pipe 44 with the gas returning port 1b of compressor 1, and first Restricting element 5 is connected between the second end of outdoor heat exchanger 2 and the second end of indoor heat exchanger 3.

Specifically, entrance 4a is located at the top of gas-liquid separator 4, and low-pressure steam air inlet pipe 43 extend into gas-liquid from entrance 4a The middle part of separator 4；Gas vent 4b is also provided in the top of gas-liquid separator 4, and low-pressure steam escape pipe 44 is from gas vent 4b It is inserted into the top of gas-liquid separator 4, and the end of one end for stretching into gas-liquid separator 4 of low-pressure steam escape pipe 44 carries Upward elbow；Liquid outlet 4c is located at the bottom of gas-liquid separator 4.

First subcooler 6 includes the first refrigerant flow 61 and the second refrigerant flow 62 mutually to exchange heat, the first refrigerant flow 61 are connected between first throttle element 5 and the second end of outdoor heat exchanger 2, and one end of the second refrigerant flow 62 passes through the first pipe Road 41 is connected with liquid outlet 4c, and the other end of the second refrigerant flow 62 is connected to by the second pipeline 42 with gas phase zone, the second pipe Road 42 is inserted into the middle part of gas-liquid separator 4, and the second pipeline 42 stretch into gas-liquid separator 4 part of horizontal setting and its from Downward elbow is carried by end.

First control valve 102 is connected on the first pipeline 41, refrigerant in the first refrigerant flow 61 and the second refrigerant flow 62 Flow direction it is opposite.Specifically, the first control valve 102 is the electric expansion valve with reducing pressure by regulating flow function.

Second subcooler 9 includes the third refrigerant flow 91 and the 4th refrigerant flow 92 mutually to exchange heat, third refrigerant flow 91 are connected between first throttle element 5 and the second end of indoor heat exchanger 3, and one end of the 4th refrigerant flow 92 passes through third pipe Road 105 is connected with liquid outlet 4c and the other end is connected to by the 4th pipeline 106 with the gas phase zone of gas-liquid separator 4；Wherein, The second control valve 103 is in series on three pipelines 105, specifically, the second control valve 103 is that the electronics with reducing pressure by regulating flow function is swollen Swollen valve.

Specifically, when air conditioner 100 is in refrigeration mode, as shown in figure 5, the first valve port 81 and 82 phase of the second valve port Connection, third valve port 83 are connected with the 4th valve port 84, and the first control valve 102 is opened and the second control valve 103 is closed, through overvoltage 1 compressed high temperature and pressure of contracting machine flows to the first valve port 81 and flows to commutation component 8, pass through later after exhaust outlet 1a discharges Second valve port 82 flows to outdoor heat exchanger 2, after outdoor heat exchanger 2 and outdoor air heat exchange, then flows into the first refrigerant flow It 61 and exchanges heat with the refrigerant in the second refrigerant flow 62 in the first refrigerant flow 61, it is first that subsequent refrigerant flows to first throttle Part 5 and the third refrigerant flow 91 that the second subcooler 9 is flowed into after 5 reducing pressure by regulating flow of first throttle element, then flow into interior and change Hot device 3 exchanges heat in turn with room air to adjust indoor environment temperature, is flowed then in turn through third valve port 83, the 4th valve port 84 To low-pressure steam air inlet pipe 43, and enter gas-liquid separator 4 to realize the separation of gaseous coolant and liquid refrigerants, wherein separation The gaseous coolant gone out passes through the low-pressure steam escape pipe 44 of gas-liquid separator 4 and returns to compression by the gas returning port 1b of compressor 1 Machine 1, due to the dead weight of pressure difference and liquid refrigerants between 62 both ends of the second refrigerant flow, the liquid refrigerants isolated is from gas The liquid outlet 4c of liquid/gas separator 4 flows out and flows to the first pipeline 41, and refrigerant flows into the first control valve when flowing through the first pipeline 41 102 carry out reducing pressure by regulating flow, flow into the second refrigerant flow 62 later, the liquid refrigerants in the second refrigerant flow 62 can be to the first refrigerant Refrigerant in flow path 61 is subcooled, and the refrigerant after heat absorption evaporation enters the gas phase zone of gas-liquid separator 4 by the second pipeline 42 And realize carry out gas-liquid separation again, it is reciprocal with this, it is thus achieved that cycle of the refrigerant in entire air conditioner 100.

When air conditioner 100 is in heating mode, as shown in figure 5, the first valve port 81 is connected with third valve port 83, second Valve port 82 is connected with the 4th valve port 84, and the second control valve 103 is opened and the first control valve 102 is closed, and is compressed by compressor 1 The refrigerant of high temperature and pressure afterwards is discharged from exhaust outlet 1a, flows to the first valve port 81 and flows to commutation component 8, passes through third valve later Mouth 83 flows to indoor heat exchanger 3 to adjust the temperature of indoor environment, then flows into third refrigerant flow 91 and in third refrigerant stream It exchanges heat with the refrigerant in the 4th refrigerant flow 92 in road 91, refrigerant is after the outflow of third refrigerant flow 91 through first throttle member The first refrigerant flow 61 is flowed into after 5 reducing pressure by regulating flow of part, then flows into outdoor heat exchanger 2 and empty with outdoor in the outdoor heat exchanger 2 Gas exchanges heat, and the refrigerant after heat exchange passes through the second valve port 82 successively and the 4th valve port 84 flows to low-pressure steam air inlet pipe 43 and goes forward side by side Enter gas-liquid separator 4 to realize the separation of gaseous coolant and liquid refrigerants, wherein the gaseous coolant isolated passes through gas-liquid separation The low-pressure steam escape pipe 44 of device 4 simultaneously returns to compressor 1 by the gas returning port 1b of compressor 1；Due to the second refrigerant flow 62 The dead weight of pressure difference and liquid refrigerants between both ends, liquid outlet 4c of the liquid refrigerants isolated from gas-liquid separator 4 Third pipeline 103 is flowed out and flows to, refrigerant flows into the second control valve 103 and carries out reducing pressure by regulating flow, warp knuckle when flowing through third pipeline 103 Refrigerant after stream decompression flows into the 4th refrigerant flow 92, and the liquid refrigerants in the 4th refrigerant flow 92 can be to third refrigerant flow 91 In refrigerant be subcooled, the refrigerant after heat absorption evaporation enters by the 4th pipeline 106 in gas-liquid separator 4 and realizes gas-liquid point From it is thus achieved that cycle of the refrigerant in entire air conditioner 100.

Embodiment 6

As shown in figure 5, the present embodiment is substantially the same with embodiment 6, it the difference is that only, the first control valve 102 and Two control valves 103 only have on-off function, while capillary of connecting on the first pipeline 41, hair of connecting on third pipeline 105 Tubule, when air conditioner 100 is in refrigeration mode, the first control valve 102 is opened and the second control valve 103 is closed, in air conditioner 100 be in heating mode when, the second control valve 103 open and the first control valve 102 close.

According to other compositions of the air conditioner 100 of the utility model embodiment and operate for ordinary skill people All it is known for member, is not detailed herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that： Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (15)

1. a kind of air conditioner, which is characterized in that including：

Compressor, the compressor have exhaust outlet and gas returning port；

In the first end of outdoor heat exchanger and indoor heat exchanger, the first end of the outdoor heat exchanger and the indoor heat exchanger One of them is connected with the exhaust outlet；

There is entrance, gas vent and liquid outlet, the entrance to be changed with the outdoor for gas-liquid separator, the gas-liquid separator The first end of hot device is connected with another in the first end of the indoor heat exchanger, the gas vent and the gas returning port phase Even；

First throttle element, the first throttle element are connected on the second end of the outdoor heat exchanger and the indoor heat exchanger Second end between；

First subcooler, first subcooler include the first refrigerant flow and the second refrigerant flow mutually to exchange heat, and described One refrigerant flow is connected between the first throttle element and the second end of the outdoor heat exchanger, second refrigerant flow One end be connected with the liquid outlet and the other end is connected to the gas phase zone of the gas-liquid separator.

2. air conditioner according to claim 1, which is characterized in that the air conditioner is single-cooling air-conditioner, and the outdoor is changed The first end of hot device is connected with the exhaust outlet, and the first end of the indoor heat exchanger is connected with the entrance.

3. air conditioner according to claim 1, which is characterized in that further include commutation component, the commutation component is with the One valve port to the 4th valve port, first valve port are connected to one of in the second valve port and third valve port, the 4th valve Mouth is connected to another in second valve port and the third valve port, and first valve port is connected with the exhaust outlet, institute It states the second valve port with the first end of the outdoor heat exchanger to be connected, the first end phase of the third valve port and the indoor heat exchanger Even, the 4th valve port is connected with the entrance.

4. air conditioner according to claim 3, which is characterized in that one end of second refrigerant flow passes through the first pipeline It is connected with the liquid outlet, the other end of second refrigerant flow is connected to by the second pipeline with the gas phase zone；

Wherein, it is in series with the first control valve on first pipeline or second pipeline, refrigeration mould is in the air conditioner When formula, first control valve is opened.

5. air conditioner according to claim 4, which is characterized in that further include the second subcooler, the second subcooler packet The third refrigerant flow and the 4th refrigerant flow mutually to exchange heat is included, the third refrigerant flow is connected on the first throttle element Between the second end of the indoor heat exchanger, one end of the 4th refrigerant flow passes through third pipeline and the liquid outlet It is connected and the other end is connected to by the 4th pipeline with the gas phase zone of the gas-liquid separator；

Wherein, it is in series with the second control valve on the third pipeline or the 4th pipeline, refrigeration mould is in the air conditioner When formula, second control valve is closed；When the air conditioner is in heating mode, second control valve is opened and described the One control valve is closed.

6. air conditioner according to claim 5, which is characterized in that second control valve is connected on the third pipeline On.

7. air conditioner according to claim 6, which is characterized in that second control valve is with reducing pressure by regulating flow function Electric expansion valve or heating power expansion valve.

8. air conditioner according to claim 6, which is characterized in that be in series with the second restricting element on the third pipeline.

9. air conditioner according to claim 5, which is characterized in that cold in the third refrigerant flow and the 4th refrigerant flow The flow direction of matchmaker is opposite.

10. air conditioner according to claim 4, which is characterized in that first control valve is connected on first pipeline On.

11. air conditioner according to claim 10, which is characterized in that first control valve is to have the function of reducing pressure by regulating flow Electric expansion valve or heating power expansion valve.

12. air conditioner according to claim 3, which is characterized in that the first throttle element is the first one-way throttle valve, From first refrigerant flow to the direction of the indoor heat exchanger, the first one-way throttle valve one-way throttle；

It is in series with the second one-way throttle valve between first refrigerant flow and the second end of the outdoor heat exchanger, from described On first refrigerant flow to the direction of the outdoor heat exchanger, the second one-way throttle valve one-way throttle.

13. according to the air conditioner described in any one of claim 1-12, which is characterized in that one end of second refrigerant flow Third restricting element is in series between the liquid outlet.

14. according to the air conditioner described in any one of claim 1-12, which is characterized in that first refrigerant flow and second The flow direction of refrigerant is opposite in refrigerant flow.

15. air conditioner according to claim 1, which is characterized in that the first throttle element is capillary, electronic expansion Valve or heating power expansion valve.