CN206695425U - Air-conditioning system - Google Patents

Air-conditioning system Download PDF

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Publication number
CN206695425U
CN206695425U CN201720460236.2U CN201720460236U CN206695425U CN 206695425 U CN206695425 U CN 206695425U CN 201720460236 U CN201720460236 U CN 201720460236U CN 206695425 U CN206695425 U CN 206695425U
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China
Prior art keywords
valve body
heat exchanger
air
conditioning system
outdoor heat
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Active
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CN201720460236.2U
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Chinese (zh)
Inventor
杨俊�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
Guangdong Midea Refrigeration Equipment Co Ltd
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Priority to CN201720460236.2U priority Critical patent/CN206695425U/en
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Abstract

The utility model discloses a kind of air-conditioning system, including compressor, the first indoor heat exchanger, the second indoor heat exchanger, the first outdoor heat exchanger, the second outdoor heat exchanger, the first valve body, the second valve body and controller, the exhaust outlet and gas returning port of compressor respectively connect the first valve body and the second valve body, the first end of first indoor heat exchanger is connected with the second valve body, and the second end is connected with the second end of the second outdoor heat exchanger;The first end of second indoor heat exchanger and the first end of the first outdoor heat exchanger, the second end is connected with the first valve body;Second end of the first outdoor heat exchanger is connected with the first valve body, and the first end of the second outdoor heat exchanger is connected with the second valve body;Controller is used for when receiving operational mode instruction, the corresponding on off state for controlling the first valve body and the second valve body, to enter corresponding operational mode.The utility model can be rapidly completed defrosting or dehumidification mode, be also prevented from reducing indoor environment temperature.

Description

Air-conditioning system
Technical field
Air-conditioning technical field is the utility model is related to, more particularly to a kind of air-conditioning system.
Background technology
At present, heat pump type air conditioning system generally use two ways is defrosted, and one of which is inverse circulation (kind of refrigeration cycle) Defrosted, its operation mechanism can be reduced to:Into defrosting mode-compressor stopping-four-way valve commutation-compressor start- Defrosting-compressor stopping-four-way valve commutation-compressor start-defrosting terminates, needed when being defrosting the defects of this scheme in room by A part of heat is absorbed, causes room temperature to reduce, so as to have a strong impact on the comfort level of user indoors;Another kind is by hot gas Logical defrosting, i.e., the inlet temperature of outdoor heat exchanger during using the exhaust heat of compressor to improve heating, the defects of the program It is defrost time length.And when running dehumidification mode, what is utilized due to air-conditioning system is that evaporator surface temperature is less than Interior Space The dew-point temperature of gas at this pressure is dehumidified, and in order to complete rapid moisture removal, causes indoor temperature to be remarkably decreased, so as to greatly Reduce to degree the experience of user.
Utility model content
Main purpose of the present utility model is to provide a kind of air-conditioning system, it is intended to which air-conditioning system runs different operational modes During such as defrosting mode or dehumidification mode, by controlling the on off state of the first valve body and the second valve body, it can not only be rapidly completed Defrosting or dehumidification mode, it is also prevented from reducing indoor environment temperature, so as to improve Consumer's Experience.
To achieve the above object, the utility model proposes a kind of air-conditioning system, including be sequentially connected and form refrigerant and follow The compressor of the twin-tub independent compression of loop back path, reversing unit, outdoor heat exchanger, first throttle unit, gas-liquid separator, second Throttling unit, indoor heat exchanger;The air-conditioning system also includes controller, and the controller is according to the operational factor of air-conditioning system Or default coolant throttle information, determine the coolant throttle degree of first throttle unit;And the operational factor according to air-conditioning system Or default coolant throttle letter determines the coolant throttle degree of the second throttling unit.
Preferably, the first throttle unit includes the first electric expansion valve, and second throttling unit includes the second electricity Sub- expansion valve, and the coolant throttle degree is the aperture of electric expansion valve.
Preferably, the operational factor of the air-conditioning system includes the running frequency of compressor, the default coolant throttle letter Breath includes the default aperture of the first electric expansion valve, and the controller is when getting the running frequency of compressor, according to described The default aperture of first electric expansion valve described in the running frequency corresponding selection of compressor.
Preferably, the operational factor of the air-conditioning system also includes the delivery temperature of compressor, the default coolant throttle Information also includes the default aperture of the second electric expansion valve, the controller when getting the delivery temperature of compressor, according to The default aperture of the electric expansion valve of delivery temperature corresponding selection second of the compressor.
Preferably, the running frequency of the compressor includes the current operation frequency or frequency change of compressor;It is described Delivery temperature includes current exhaust gas temperature value or exhaust gas temperature change value.
Preferably, the default aperture of first electric expansion valve and the default aperture of the second electric expansion valve are according to compression Running frequency and/or the delivery temperature setting of machine.
To achieve the above object, the utility model also provides a kind of control method of air-conditioning system, comprises the following steps:
During operation of air conditioner, the operational factor of air-conditioning system and/or default coolant throttle information are obtained;
According to the operational factor of air-conditioning system or default coolant throttle information, the coolant throttle journey of first throttle unit is determined Degree;And the coolant throttle degree of the second throttling unit is determined according to the operational factor of air-conditioning system or default coolant throttle letter;
According to identified first throttle unit and the coolant throttle extent control first throttle unit of the second throttling unit With the second throttling unit.
Preferably, the throttling of the first throttle unit control with the throttling of the second throttling unit control as Synchronization Control or Successively control.
Preferably, in the operational factor change of the air-conditioning system, calculated simultaneously according to the operational factor after change again Determine the coolant throttle degree of first throttle unit and the second throttling unit.
Air-conditioning system provided by the utility model, by setting compressor, the first indoor heat exchanger, exchanging heat in second Room Device, the first outdoor heat exchanger, the second outdoor heat exchanger, the first valve body and the second valve body, wherein, the exhaust outlet of compressor connects respectively First valve body and the second valve body are connect, the gas returning port of first valve body and the second valve body also respectively with the compressor connects Connect, the first end of first indoor heat exchanger is connected with second valve body, the second end of the first indoor heat exchanger with it is described The second end connection of second outdoor heat exchanger;The of the first end of second indoor heat exchanger and first outdoor heat exchanger One end connects, and the second end of second indoor heat exchanger is connected with first valve body, and the of first outdoor heat exchanger Two ends are connected with first valve body, and the first end of second outdoor heat exchanger is connected with second valve body, and the sky Adjusting system also includes controller, by the controller when receiving operational mode instruction, is instructed according to the operational mode, The corresponding on off state for controlling first valve body and the second valve body, to enter corresponding operational mode.So, can be in air-conditioning When the different operational mode of system operation such as defrosting mode or dehumidification mode, by the switch for controlling the first valve body and the second valve body State, defrosting or dehumidification mode can be not only rapidly completed, be also prevented from reducing indoor environment temperature, so as to improve user's body Test.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is that refrigerant flows to schematic diagram in defrost mode for the utility model air-conditioning system;
Fig. 2 is that the utility model air-conditioning system refrigerant under the dehumidification mode flows to schematic diagram;
Fig. 3 is that refrigerant flows to schematic diagram in a heating mode for the utility model air-conditioning system;
Fig. 4 is that refrigerant flows to schematic diagram in cooling mode for the utility model air-conditioning system;
Fig. 5 is the schematic flow sheet of first embodiment when the utility model air-conditioning system is controlled;
Fig. 6 is the schematic flow sheet of second embodiment when the utility model air-conditioning system is controlled;
Fig. 7 is the schematic flow sheet of 3rd embodiment when the utility model air-conditioning system is controlled.
Drawing reference numeral explanation:
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that be related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then it is only used for explaining relative position relation under a certain particular pose (as shown in drawings) between each part, fortune Emotionally condition etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If in addition, being related to the description of " first ", " second " etc. in the utility model, it is only used for describing purpose, and It is not intended that indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, limit There is " first ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, between each embodiment Technical scheme can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, work as technical side It will be understood that the combination of this technical scheme is not present when the combination appearance of case is conflicting or can not realize, also not in this practicality Within the protection domain of new requirement.
It refer to Fig. 1-Fig. 4, air-conditioning system 100 provided by the utility model, including:Compressor 1, the first indoor heat exchange Device 2, the second indoor heat exchanger 3, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5, the first valve body 6, the second valve body 7, first Choke valve 8 and second throttle 9.Wherein, the exhaust outlet A of the compressor 1 connects the valve body of the first valve body 6 and second respectively 7, gas returning port B of the valve body 7 of the first valve body 6 and second also respectively with the compressor 1 is connected.Preferably, first valve The valve body 7 of body 6 and second is four-way valve, under the different operational modes of air-conditioning system 100, first valve body 6 and second The on off state and switching direction of valve body 7 are different, will hereafter be specifically addressed.Wherein, the air-conditioning system 100 is preferably heat It pump type air-conditioning, i.e., can both freeze, can also heat.
Further, the first end of first indoor heat exchanger 2 is connected with second valve body 7, the first indoor heat exchange Second end of device 2 is connected with the second end of second outdoor heat exchanger 5;The first end of second indoor heat exchanger 3 and institute The first end connection of the first outdoor heat exchanger 4 is stated, the second end of second indoor heat exchanger 3 is connected with first valve body 6; Second end of first outdoor heat exchanger 4 is connected with first valve body 6, the first end of second outdoor heat exchanger 5 with Second valve body 7 connects.By the way that the first indoor heat exchanger 2 and the second indoor heat exchanger 3 are split as into two parts, two are formed The different refrigerant circulation stream of group so that two indoor heat exchangers, outdoor heat exchangers of air-conditioning system 100, each wherein one Individual carry out neither endothermic nor exothermic, another carries out heat release or heat absorption, can be with quickly defrosting so as under defrosting or dehumidification mode Or dehumidifying.
The air-conditioning system 100 is also connected including one end with the second end of first indoor heat exchanger 2, the other end and institute State the first throttle valve 8 of the second end connection of the second outdoor heat exchanger 5;And the of one end and second indoor heat exchanger 3 One end connects, and the second throttle 9 that the other end is connected with the first end of first outdoor heat exchanger 4, passes through first throttle valve 8 Refrigerant flow of the refrigerant in each circulation stream can be adjusted with second throttle 9.
The air-conditioning system 100 also includes controller (not shown), and the controller is used to receive operation mould When formula instructs, instructed according to the operational mode, the corresponding on off state for controlling the valve body 7 of the first valve body 6 and second, to enter Enter corresponding operational mode.
Specifically, in the first embodiment, reference picture 1, it is described when the air-conditioning system 100 is running defrosting mode First valve body 6 is opening, and second valve body 7 is closed mode.Now, exhaust outlet A of some refrigerant from compressor 1 Discharge, the refrigerant for flowing through the first valve body 6 is still heating circulation, i.e., refrigerant releases heat in the second indoor heat exchanger 3, After the second throttle 9 heat is absorbed in the first outdoor heat exchanger 4;Another part refrigerant is then through second valve body 7 enter the second outdoor heat exchanger 5 release heat (this partial heat can be used for defrosting), then after the throttling of first throttle valve 8 Flow to the first indoor heat exchanger 2 and absorbed heat (and what this partial heat can be discharged by refrigerant in the second indoor heat exchanger 3 Heat provide), in this way, by rationally design the first indoor heat exchanger 2, the second indoor heat exchanger 3, the first outdoor heat exchanger 4 with And second outdoor heat exchanger 5 position and heat exchange area, the size of arrange in pairs or groups the first matching valve body 6 and the second valve body 7 and Switching direction can realize quickly defrosting, while not cause indoor environment temperature to decline.Preferably, second indoor heat exchanger 3 heat exchange area is more than first indoor heat exchanger 2, in this manner it is ensured that air-conditioning system 100 is during defrosting or defrosting To the extra a part of heat of indoor conveying, so as to prevent indoor environment temperature from reducing.And first indoor heat exchanger and described The heat exchange area of second indoor heat exchanger can be identical with size.
In a second embodiment, reference picture 2, when the air-conditioning system 100 is running dehumidification mode, first valve body 6 be closed mode, and second valve body 7 is opening.Now, refrigerant is after the exhaust outlet A discharges of compressor 1, part Cold-producing medium stream flows through the throttling of the first outdoor heat exchanger 4, second successively through the first valve body 6, and after the switching direction of the first valve body 6 The indoor heat exchanger 3 of valve 9 and second, the first valve body 6 is then flowed back to, and the guide effect cooled via return air mouth B through the first valve body 6 flows back to pressure Contracting machine 1, in the process, refrigerant carry out heat release in outdoor heat exchanger, and heat exchanger is absorbed heat indoors;And another part Cold-producing medium stream through the second valve body 7, and after the switching direction of the second valve body 7, flow through the first indoor heat exchanger 2, first segment successively The outdoor heat exchanger 5 of valve 8 and second is flowed, then flows back to the second valve body 7, and the guide effect cooled via return air mouth B through the second valve body 7 is flowed back to Compressor 1, and refrigerant is absorbed heat and the heat release of heat exchanger progress indoors in outdoor heat exchanger in the process.
In the third embodiment, reference picture 3, when the air-conditioning system 100 is running heating mode, first valve body 6 and second valve body 7 be opening.Now, for refrigerant after the exhaust outlet A discharges of compressor 1, some refrigerant flows through the Enter heat exchanger 3 in second Room after one valve body 6, enter the first outdoor heat exchanger 4, Ran Houliu after flowing through the second throttle 9 First valve body 6 is returned, and the guide effect cooled via return air mouth B through first valve body 6 flows back to compressor 1;And another part Cold-producing medium stream enters the first indoor heat exchanger 2 through the second valve body 7, then enters the second outdoor heat exchange through the first throttle valve 8 The second valve body 7 is flowed back to after device 5, and the guide effect cooled via return air mouth B through second valve body 7 flows back to compressor 1.
In the fourth embodiment, reference picture 4, when the air-conditioning system 100 is running refrigeration mode, first valve body 6 and second valve body 7 be closed mode.Now, for refrigerant after the exhaust outlet A discharges of compressor 1, some refrigerant flows through the Enter the first outdoor heat exchanger 4 after one valve body 6, then in turn through second throttle 9, the second indoor heat exchanger 3, the first valve body The compressor 1 is flowed back to after 6;And the cold-producing medium stream of another part enters the second outdoor heat exchanger 5, Ran Houyi through the second valve body 7 It is secondary to flow back to the compressor 1 after first throttle valve 8, the first indoor heat exchanger 2, the second valve body 7.
Air-conditioning system 100 provided by the utility model, by setting compressor 1, the first indoor heat exchanger 2, in second Room Heat exchanger 3, the first outdoor heat exchanger 4, the second outdoor heat exchanger 5, the first valve body 6 and the second valve body 7, wherein, the row of compressor 1 Gas port A connects the valve body 7 of the first valve body 6 and second respectively, the valve body 7 of the first valve body 6 and second also respectively with the pressure The gas returning port B connections of contracting machine 1, the first end of first indoor heat exchanger 2 are connected with second valve body 7, and the first interior is changed Second end of hot device 2 is connected with the second end of second outdoor heat exchanger 5;The first end of second indoor heat exchanger 3 with The first end connection of first outdoor heat exchanger 4, the second end of second indoor heat exchanger 3 connects with first valve body 6 Connect, the second end of first outdoor heat exchanger 4 is connected with first valve body 6, the first end of second outdoor heat exchanger 5 It is connected with second valve body 7, and the air-conditioning system 100 also includes controller, and operation is being received by the controller During mode instruction, instructed according to the operational mode, the corresponding on off state for controlling the valve body 7 of the first valve body 6 and second, with Into corresponding operational mode.So, different operational modes such as defrosting mode or dehumidifying mould can be run in air-conditioning system 100 During formula, by controlling the on off state of the first valve body 6 and the second valve body 7, defrosting or dehumidification mode can be not only rapidly completed, also It can prevent from reducing indoor environment temperature, so as to improve Consumer's Experience.
As shown in figure 5, in one embodiment, the control method bag for the above-mentioned air-conditioning system 100 that the utility model also provides Include following steps:
Step S1, operational mode instruction is received;
In the present embodiment, the operational mode of the air-conditioning system 100 includes defrosting, dehumidifying, heating and refrigeration mode etc., The utility model is mainly for defrosting therein and dehumidification mode so that air-conditioning system 100 in operation defrosting or during dehumidification mode, It can not only start to complete defrosting or dehumidifying, indoor environment temperature can not also be reduced, to improve Consumer's Experience.Wherein, run Mode instruction can be triggered by the remote controller key of air-conditioning system 100, can also be by wirelessly connecting with air-conditioning system 100 The application program of pre-download triggers on the mobile terminal such as mobile phone connect, it is, of course, also possible to directly instructed by voice Control.
Step S2, instructed according to the operational mode, the on off state of corresponding first valve body 6 and the second valve body 7, to enter Corresponding operational mode.
In the present embodiment, air-conditioning system 100 can control the first valve body 6 and the second valve respectively in operational mode difference The on off state of body 7, such as:
In the first embodiment, reference picture 1, when operational mode instruction instructs for operation defrosting mode, institute is controlled State the first valve body 6 to open, and control second valve body 7 to close.When the air-conditioning system 100 is running defrosting mode, institute It is opening to state the first valve body 6, and second valve body 7 is closed mode.Now, exhaust of some refrigerant from compressor 1 Mouth A discharges, the refrigerant for flowing through the first valve body 6 is still heating circulation, i.e., refrigerant releases heat in the second indoor heat exchanger 3 Amount, absorbs heat after the second throttle 9 in the first outdoor heat exchanger 4;Another part refrigerant is then through described second Valve body 7 enters the second outdoor heat exchanger 5 release heat (this partial heat can be used for defrosting), is then saved by first throttle valve 8 The first indoor heat exchanger 2 is flowed to after stream and is absorbed heat that (and this partial heat can be discharged by refrigerant in the second indoor heat exchanger 3 The heat gone out provides), in this way, by rationally designing the first indoor heat exchanger 2, the second indoor heat exchanger 3, the first outdoor heat exchanger 4 and second outdoor heat exchanger 5 position and heat exchange area, the size of arrange in pairs or groups the first matching valve body 6 and the second valve body 7 And switching direction can realize quickly defrosting, while indoor environment temperature is not caused to decline.Preferably, exchanged heat in the second Room The heat exchange area of device 3 is more than first indoor heat exchanger 2, in this manner it is ensured that air-conditioning system 100 is in the process that defrosts or defrost It is middle to the extra a part of heat of indoor conveying, so as to prevent indoor environment temperature from reducing.And first indoor heat exchanger and institute The heat exchange area for stating the second indoor heat exchanger can be identical with size.
In a second embodiment, reference picture 2, when operational mode instruction instructs for operation dehumidification mode, institute is controlled State the first valve body 6 to close, and control second valve body 7 to open.Now, refrigerant through compressor 1 exhaust outlet A discharge after, Some refrigerant flows through the first valve body 6, and after the switching direction of the first valve body 6, flows through the first outdoor heat exchanger 4, second successively The indoor heat exchanger 3 of choke valve 9 and second, then flow back to the first valve body 6, and the streams of the guide effect cooled via return air mouth B through the first valve body 6 Compressor 1 is returned, in the process, refrigerant carries out heat release in outdoor heat exchanger, and heat exchanger is absorbed heat indoors;It is and another Partial cold-producing medium stream flows through the first indoor heat exchanger 2, successively through the second valve body 7, and after the switching direction of the second valve body 7 One choke valve 8 and the second outdoor heat exchanger 5, then flow back to the second valve body 7, and the guide effect cooled via return air mouth B through the second valve body 7 Compressor 1 is flowed back to, and refrigerant is absorbed heat and the heat release of heat exchanger progress indoors in outdoor heat exchanger in the process.
In the third embodiment, reference picture 3, when operational mode instruction instructs for operation heating mode, institute is controlled State the first valve body 6 and the second valve body 7 is opened.Now, after the exhaust outlet A discharges of compressor 1, some refrigerant flows through refrigerant Enter heat exchanger 3 in second Room after first valve body 6, enter the first outdoor heat exchanger 4 after flowing through the second throttle 9, then First valve body 6 is flowed back to, and the guide effect cooled via return air mouth B through first valve body 6 flows back to compressor 1;And another part Cold-producing medium stream through the second valve body 7 enter the first indoor heat exchanger 2, then through the first throttle valve 8 enter second Room outside change The second valve body 7 is flowed back to after hot device 5, and the guide effect cooled via return air mouth B through second valve body 7 flows back to compressor 1.
In the fourth embodiment, reference picture 4, when the air-conditioning system 100 is running refrigeration mode, first valve body 6 and second valve body 7 be closed mode.Now, for refrigerant after the exhaust outlet A discharges of compressor 1, some refrigerant flows through the Enter the first outdoor heat exchanger 4 after one valve body 6, then in turn through second throttle 9, the second indoor heat exchanger 3, the first valve body The compressor 1 is flowed back to after 6;And the cold-producing medium stream of another part enters the second outdoor heat exchanger 5, Ran Houyi through the second valve body 7 It is secondary to flow back to the compressor 1 after first throttle valve 8, the first indoor heat exchanger 2, the second valve body 7.
The control method of air-conditioning system 100 provided by the utility model, by receive operational mode instruct when, according to The operational mode instruction, the corresponding on off state for controlling the valve body 7 of the first valve body 6 and second, to enter corresponding operation Pattern.So, control can be passed through when air-conditioning system 100 runs different operational modes such as defrosting mode or dehumidification mode The on off state of first valve body 6 and the second valve body 7, defrosting or dehumidification mode can be not only rapidly completed, is also prevented from reducing Indoor environment temperature, so as to improve Consumer's Experience.
In one embodiment, reference picture 6, on the basis of the embodiment shown in Fig. 5, also include after the step S1:
Step S3, judge whether the compressor 1 is in opening;
If step S4, described compressor 1 is in opening, control the compressor 1 out of service.
In the present embodiment, air-conditioning system 100 is when receiving operational mode instruction, it is necessary to the corresponding regulation He of the first valve body 6 The on off state of second valve body 7, therefore, in order to avoid refrigerant continues to be flowed according to operational mode before, it is necessary to will Compressor 1 is closed.Accordingly, it can be determined that whether compressor 1 is in opening, if so, then needing to control compressor 1 to stop Operation;If it is not, it then can directly correspond to the on off state of the first valve body 6 of regulation and the second valve body 7.
In one embodiment, reference picture 7, on the basis of the embodiment shown in Fig. 6, also include after the step S4:
Step S5, control the compressor 1 to open again, and enter corresponding operational mode.
In the present embodiment, finished when the on off state of the first valve body 6 and the second valve body 7 is adjusted, at this point it is possible to control pressure Contracting machine 1 reopens, with operational mode corresponding to entrance, such as defrosting, dehumidifying, heating or refrigeration isotype.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, Every equivalent structure under utility model of the present utility model design, made using the utility model specification and accompanying drawing content Conversion, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.

Claims (10)

1. a kind of air-conditioning system, it is characterised in that the air-conditioning system is including in compressor, the first indoor heat exchanger, second Room Heat exchanger, the first outdoor heat exchanger, the second outdoor heat exchanger, the first valve body and the second valve body,
The exhaust outlet of the compressor connects first valve body and the second valve body respectively, and first valve body and the second valve body are also The gas returning port with the compressor is connected respectively,
The first end of first indoor heat exchanger is connected with second valve body, the second end of the first indoor heat exchanger with it is described The second end connection of second outdoor heat exchanger;The of the first end of second indoor heat exchanger and first outdoor heat exchanger One end is connected, and the second end of second indoor heat exchanger is connected with first valve body;The of first outdoor heat exchanger Two ends are connected with first valve body, and the first end of second outdoor heat exchanger is connected with second valve body;
The air-conditioning system also includes controller, and the controller is used for when receiving operational mode instruction, according to the fortune Row mode instructs, the corresponding on off state for controlling first valve body and the second valve body, to enter corresponding operational mode.
2. air-conditioning system as claimed in claim 1, it is characterised in that first valve body and the second valve body are four-way valve.
3. air-conditioning system as claimed in claim 1 or 2, it is characterised in that the air-conditioning system is when running defrosting mode, institute It is opening to state the first valve body, and second valve body is closed mode.
4. air-conditioning system as claimed in claim 1 or 2, it is characterised in that the air-conditioning system is when running dehumidification mode, institute It is closed mode to state the first valve body, and second valve body is opening.
5. air-conditioning system as claimed in claim 1 or 2, it is characterised in that the air-conditioning system is when running heating mode, institute It is opening to state the first valve body and the second valve body.
6. air-conditioning system as claimed in claim 1 or 2, it is characterised in that the air-conditioning system is when running refrigeration mode, institute It is closed mode to state the first valve body and the second valve body.
7. air-conditioning system as claimed in claim 1, it is characterised in that the heat exchange area of second indoor heat exchanger is more than institute State the first indoor heat exchanger.
8. air-conditioning system as claimed in claim 1, it is characterised in that changed in first indoor heat exchanger and the second Room The heat exchange area size of hot device is identical.
9. air-conditioning system as claimed in claim 1, it is characterised in that the air-conditioning system also includes one end and first Room The second end connection of interior heat exchanger, the first throttle valve that the other end is connected with the second end of second outdoor heat exchanger.
10. air-conditioning system as claimed in claim 1, it is characterised in that the air-conditioning system also includes one end and described second The first end connection of indoor heat exchanger, the second throttle that the other end is connected with the first end of first outdoor heat exchanger.
CN201720460236.2U 2017-04-27 2017-04-27 Air-conditioning system Active CN206695425U (en)

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CN201720460236.2U CN206695425U (en) 2017-04-27 2017-04-27 Air-conditioning system

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Application Number Priority Date Filing Date Title
CN201720460236.2U CN206695425U (en) 2017-04-27 2017-04-27 Air-conditioning system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107062678A (en) * 2017-04-27 2017-08-18 广东美的制冷设备有限公司 Air-conditioning system and its control method
WO2022160862A1 (en) * 2021-01-29 2022-08-04 青岛海尔空调器有限总公司 Air conditioning system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107062678A (en) * 2017-04-27 2017-08-18 广东美的制冷设备有限公司 Air-conditioning system and its control method
WO2022160862A1 (en) * 2021-01-29 2022-08-04 青岛海尔空调器有限总公司 Air conditioning system

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