CN108800440A - Air conditioner and its control method - Google Patents
Air conditioner and its control method Download PDFInfo
- Publication number
- CN108800440A CN108800440A CN201810629082.4A CN201810629082A CN108800440A CN 108800440 A CN108800440 A CN 108800440A CN 201810629082 A CN201810629082 A CN 201810629082A CN 108800440 A CN108800440 A CN 108800440A
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- Prior art keywords
- air conditioner
- valve
- bypass branch
- heat exchanger
- control
- Prior art date
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010257 thawing Methods 0.000 claims abstract description 44
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 13
- 238000012360 testing method Methods 0.000 claims description 4
- 239000003507 refrigerant Substances 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008901 benefit Effects 0.000 description 4
- 235000013399 edible fruits Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- PIRWNASAJNPKHT-SHZATDIYSA-N pamp Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCNC(N)=N)C(N)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@H](CO)NC(=O)[C@H](C)NC(=O)[C@@H](NC(=O)[C@H](CC(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](C)N)C(C)C)C1=CC=CC=C1 PIRWNASAJNPKHT-SHZATDIYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
Abstract
The invention discloses a kind of air conditioner and its control method, air conditioner includes：Compressor, four-way valve, outdoor heat exchanger, indoor heat exchanger, restricting element and bypass branch, restricting element is series on the connecting line between indoor heat exchanger and outdoor heat exchanger, bypass branch is between indoor heat exchanger and outdoor heat exchanger, and bypass branch is in parallel with restricting element, bypass branch, which has, controls its control valve switched between conducting state and off-state.Wherein, when air conditioner is in defrosting state, bypass branch is in the conduction state.Air conditioner according to the present invention, by the way that the bypass branch in parallel with restricting element is arranged, when air conditioner is in defrosting mode, it is in the conduction state bypass branch can be controlled, thus, it is possible to the flow of refrigerant be improved, so as to shorten the defrosting cycle of air conditioner, the defrosting efficiency and defrosting effect of air conditioner are improved, and then improves the user experience of air conditioner.
Description
Technical field
The present invention relates to air-conditioning technical field more particularly to a kind of air conditioner and its control methods.
Background technology
Under air conditioner heat-production state, under worst cold case, continuous service for a period of time after outdoor unit due to evaporate heat release, table
Face temperature reduces, and hydrone in air is made to condense into frost layer in the heat exchanger surface of outdoor unit, and the thickness of frost layer can be with
It heats continuous service and then increases, the heat transfer effect of outdoor heat exchanger weakens significantly.
In the related technology, the frost layer of condenser is eliminated in such a way that the heating transformation of ownership is cold.During defrosting, capillary section
Device is flowed because flow is firm discharge, can not be adjusted.Air conditioner is when running heating and defrosting pattern, the effect and system of defrosting
The throttle-flow of cold capillary has much relations, and when there are capillary-compensated, the flow velocity of entire high temperature refrigerant is slow, therefore changes
The white deadline is long, and effect is poor.
Invention content
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of sky
Device, the air conditioner is adjusted to have the advantages that simple in structure, defrosting efficiency is high.
The present invention also proposes that a kind of control method of air conditioner, the control method have easy to operate, reliable for operation
Advantage.
Air conditioner according to the ... of the embodiment of the present invention, including：Compressor, the compressor have exhaust outlet and gas returning port；Four
Port valve, the four-way valve include the first valve port, the second valve port, third valve port and the 4th valve port, first valve port and the row
Gas port is connected to, and the 4th valve port is connected to the gas returning port, first valve port and second valve port and the third valve
The changeable connection of mouth；Outdoor heat exchanger, one end of the outdoor heat exchanger are connected to second valve port；Indoor heat exchanger, institute
The one end for stating indoor heat exchanger is connected to the third valve port；Restricting element, the restricting element are series at the indoor heat exchange
On connecting line between device and the outdoor heat exchanger；Bypass branch, the bypass branch be located at the indoor heat exchanger and
Between the outdoor heat exchanger, and the bypass branch is in parallel with the restricting element, the bypass branch have control its
The control valve switched between conducting state and off-state；Wherein, when the air conditioner is in defrosting state, the bypass branch
Road is in the conduction state.
Air conditioner according to the ... of the embodiment of the present invention, by the way that the bypass branch in parallel with restricting element is arranged, at air conditioner
When defrosting mode, it can control that bypass branch is in the conduction state, thus, it is possible to the flow of refrigerant is improved, so as to shorten
The defrosting cycle of air conditioner, improves the defrosting efficiency and defrosting effect of air conditioner, and then improves the user experience of air conditioner.
According to some embodiments of the present invention, the restricting element is capillary module.
In some embodiments of the invention, the control valve is solenoid electric valve.
According to some embodiments of the present invention, further include：Control assembly, the control valve are connect with the control assembly,
The control assembly controls the opening and closing of the control valve.
In some embodiments of the invention, further include：Temperature sensor, the temperature sensor and the control assembly
Connection, the temperature sensor is for detecting outdoor temperature, and the control assembly is according to the testing result of the temperature sensor
Control the opening and closing of the control valve.
According to some embodiments of the present invention, further include：Filter, the filter are series at the connecting line, institute
It states bypass branch and the restricting element is connect with the filter.
The control method of air conditioner according to the ... of the embodiment of the present invention, the air conditioner is air conditioner described above, described
Control method includes：Judge the operational mode of the air conditioner；When the air conditioner is in refrigeration or heating mode, the side
Logical branch is off；When the air conditioner is in defrosting mode, the bypass branch is in the conduction state.
The control method of air conditioner according to the ... of the embodiment of the present invention, bypass branch can exist according to the operational mode of air conditioner
Switch between conducting state and off-state.When air conditioner is in defrosting mode, bypass branch is in the conduction state, so as to
To increase the flow of refrigerant in connection branch, and then improve the defrosting efficiency and defrosting effect of air conditioner.
According to some embodiments of the present invention, the air conditioner has the temperature sensor for detecting outdoor temperature, when
The air conditioner is in refrigeration mode, and when temperature sensor detection outdoor temperature T1 >=preset temperature T0, the control
Valve periodically opening and closing.
In some embodiments of the invention, T0=53 DEG C of the preset temperature.
According to some embodiments of the present invention, the air conditioner is according to the air conditioner described in claim 5, when the sky
Device is adjusted to be in heating mode, and temperature sensor detection outdoor temperature T2 meets：When -2 DEG C≤T2≤2 DEG C, the control
Valve periodically opening and closing.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination following accompanying drawings to embodiment
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram of air conditioner according to the ... of the embodiment of the present invention；
Fig. 2 is the partial structural diagram of air conditioner according to the ... of the embodiment of the present invention.
Reference numeral：
Air conditioner 100,
Compressor 10, exhaust outlet 110, gas returning port 120,
Four-way valve 20, the first valve port 21, the second valve port 22, third valve port 23, the 4th valve port 24,
Outdoor heat exchanger 30,
Indoor heat exchanger 40,
Connecting line 50, restricting element 510, refrigerating capillary 511, heating assisted capillary 512, filter 520,
Bypass branch 60, control valve 610,
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term "upper", "lower", "front", "rear", "left", "right", "inner",
The orientation or positional relationship of the instructions such as "outside", " axial direction ", " radial direction ", " circumferential direction " is that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, define " the
One ", 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 " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Air conditioner 100 according to the ... of the embodiment of the present invention and its control method are described below with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, air conditioner 100 according to the ... of the embodiment of the present invention, air conditioner 100 include：Compressor 10, four-way valve
20, outdoor heat exchanger 30, indoor heat exchanger 40, restricting element 510 and bypass branch 60.
Specifically, as shown in Figure 1, compressor 10 has exhaust outlet 110 and gas returning port 120.It is compressed by compressor 10
Refrigerant afterwards can be discharged from exhaust outlet 110, and the refrigerant after heat exchange can be back to compressor from gas returning port 120
10, realize circulating for refrigerant.
Four-way valve 20 may include：First valve port 21, the second valve port 22, third valve port 23 and the 4th valve port 24, the first valve
Mouthfuls 21 are connected to exhaust outlet 110, and the 4th valve port 24 is connected to gas returning port 120, the first valve port 21 and the second valve port 22 and third valve
The changeable connection of mouth 23, one end of outdoor heat exchanger 30 are connected to the second valve port 22, one end and the third valve of indoor heat exchanger 40
Mouth 23 is connected to.Thus, it is possible to by switching four-way valve 20, refrigerant is set to be flowed according to different directions, to realize air conditioner 100
The different operational modes such as refrigeration, heating or defrosting.
In conjunction with shown in Fig. 1 and Fig. 2, restricting element 510 is series at the company between indoor heat exchanger 40 and outdoor heat exchanger 30
It takes on road 50, bypass branch 60 is between indoor heat exchanger 40 and outdoor heat exchanger 30, and bypass branch 60 and throttling member
Part 510 is in parallel, and bypass branch 60, which has, controls its control valve 610 switched between conducting state and off-state.Wherein, when
When air conditioner 100 is in defrosting state, bypass branch 60 is in the conduction state.As a result, when air conditioner 100 is in defrosting state
When, part refrigerant is flowed from restricting element 510, and another part refrigerant can be flowed from bypass branch 60.Refrigerant is improved as a result,
Flow improve defrosting efficiency and defrosting effect so as to shorten defrosting time.
Air conditioner 100 according to the ... of the embodiment of the present invention, by the way that the bypass branch 60 in parallel with restricting element 510 is arranged, when
When air conditioner 100 is in defrosting mode, it can control that bypass branch 60 is in the conduction state, thus, it is possible to improve the stream of refrigerant
Amount improves the defrosting efficiency and defrosting effect of air conditioner 100, and then improve so as to shorten the defrosting cycle of air conditioner 100
The user experience of air conditioner 100.
According to some embodiments of the present invention, as shown in Fig. 2, restricting element 510 can be capillary module.As a result, may be used
To reduce the cost of restricting element 510, to reduce the production cost of air conditioner 100.It is understood that capillary module can
To play the role of cooling decompression to the refrigerant for flowing through it.It since the flow of capillary module is fixed, can not adjust, therefore, lead to
It crosses and is arranged in parallel bypass branch 60 with capillary module, it can be by controlling the conducting of bypass branch 60 and disconnecting control refrigerant
Flow.When air conditioner 100 is in defrosting mode, bypass branch 60 is connected, and high temperature refrigerant flow is improved as a result, to carry
The high defrosting efficiency of air conditioner 100.
In some embodiments of the invention, control valve 610 can be solenoid electric valve.It is understood that pass through by
Control valve 610 is set as solenoid electric valve, convenient for the opening and closing of control valve 610 carry out it is sensitive, accurately control.It needs
Illustrate, air conditioner 100 can be according to the different operational modes of air conditioner 100, to the opening and closing state of control valve 610
It is correspondingly controlled, to improve the stability and reliability of the operation of air conditioner 100.
According to some embodiments of the present invention, air conditioner 100 can also include：Control assembly, control valve 610 and control group
Part connects, and control assembly controls the opening and closing of control valve 610.It should be noted that can be by being carried out to control assembly
Programming setting makes control assembly realize automation control to the opening and closing of solenoid electric valve 610 according to program.As a result, may be used
Under the different operational modes of air conditioner 100, to realize that the opening and closing realization to control valve 610 automatically controls, from
And improve the intelligence and automation of air conditioner 100.
In some embodiments of the invention, air conditioner 100 can also include：Temperature sensor, temperature sensor and control
Component connection processed, temperature sensor are controlled according to the testing result of temperature sensor and are controlled for detecting outdoor temperature, control assembly
The opening and closing of valve 610 processed.It should be noted that the outdoor temperature knot that control assembly can be detected according to temperature sensor
Fruit realizes automation control, to keep air conditioner 100 more intelligent and automate to the conducting and disconnection of bypass branch 60.
According to some embodiments of the present invention, as shown in Fig. 2, air conditioner 100 can also include：Filter 520, filter
520 are series at connecting line 50, and bypass branch 60 and restricting element 510 are connect with filter 520.Filter 520 can as a result,
To be filtered to the refrigerant for flowing through connecting line 50.For example, filter 520 can filter out impurity, oil in refrigerant etc., from
And the stability and reliability of the operation of air conditioner 100 can be improved.
The control method of air conditioner 100 according to the ... of the embodiment of the present invention, air conditioner 100 are air conditioner 100 described above,
Control method includes：
Judge the operational mode of air conditioner 100；
When air conditioner 100 is in refrigeration or heating mode, bypass branch 60 is off.Thus, it is possible to realize
The normal refrigeration or heat-production functions of air conditioner 100.
When air conditioner 100 is in defrosting mode, bypass branch 60 is in the conduction state.Thus, it is possible to increase connecting tube
The cold medium flux on road 50, to improve the defrosting effect of air conditioner 100.
The control method of air conditioner 100 according to the ... of the embodiment of the present invention, bypass branch 60 can be according to the fortune of air conditioner 100
Row pattern switches between conducting state and off-state.When air conditioner 100 is in defrosting mode, bypass branch 60 is in and leads
Logical state so as to increase the flow of refrigerant in connection branch, and then improves the defrosting efficiency and defrosting effect of air conditioner 100
Fruit.
According to some embodiments of the present invention, air conditioner 100 has the temperature sensor of detection outdoor temperature, works as air conditioner
100 is in refrigeration mode, and when temperature sensor detection outdoor temperature T1 >=preset temperature T0, i.e., air conditioner 100 is in high temperature
When refrigeration mode, the periodically opening and closing of control valve 610.It should be noted that when air conditioner 100 is in high-temperature refrigeration pattern
When operation, pressure is larger in condenser and restricting element 510.100 internal part of air conditioner is caused in order to avoid pressure is excessive
Damage, air conditioner 100 can be equipped with predetermined current, when the circuital current in air conditioner 100 is more than predetermined current, air conditioner
100 start stoppage protection.And when air conditioner 100 runs high-temperature refrigeration pattern, it periodically opens and closes by control valve 610
It closes, off-load protection can be played the role of, so as to effectively avoid the autostop of air conditioner 100, improve air conditioner 100
User experience.
In some embodiments of the invention, T0=53 DEG C of preset temperature.That is, when outdoor temperature is more than or equal to 53
DEG C when, i.e., when air conditioner 100 is in superhigh temperature refrigeration mode, bypass branch 60 be connected, with to air conditioner 100 carry out off-load guarantor
Shield.
According to some embodiments of the present invention, air conditioner 100 has the temperature sensor of detection outdoor temperature, works as air conditioner
100 are in heating mode, and temperature sensor detection outdoor temperature T2 meets：When -2 DEG C≤T2≤2 DEG C, 610 period of control valve
Property ground opening and closing.It should be noted that when outdoor temperature is -2 DEG C≤T2≤2 DEG C, the humidity in outdoor gas is larger,
And it is easy to frosting, by periodical open or close control valve 610, part refrigerant can be made to be flowed through from bypass branch 60, carried
The high condensation temperature of air-conditioner outdoor unit, effectively extends the frosting period of outdoor heat exchanger 30, improves the operation of air conditioner 100
Stability and reliability.
Air conditioner according to the ... of the embodiment of the present invention is described in detail with a specific embodiment referring to Fig. 1 and Fig. 2
100.It is worth understanding, it is described below to be merely illustrative, rather than to the concrete restriction of the present invention.
As shown in Figure 1, air conditioner 100 includes：Compressor 10, four-way valve 20, outdoor heat exchanger 30, indoor heat exchanger 40,
Restricting element 510, bypass branch 60, control assembly and temperature sensor.
Wherein, as shown in Figure 1, it includes the first valve port that compressor 10, which has exhaust outlet 110 and gas returning port 120, four-way valve 20,
21, the second valve port 22, third valve port 23 and the 4th valve port 24, the first valve port 21 are connected to exhaust outlet 110, the 4th valve port 24 with return
Gas port 120 is connected to, and the first valve port 21 can be switched with the second valve port 22 and third valve port 23 and be connected to.One end of outdoor heat exchanger 30 with
Second valve port 22 is connected to, and one end of indoor heat exchanger 40 is connected to third valve port 23.
Restricting element 510 is capillary module, restricting element 510 be series at indoor heat exchanger 40 and outdoor heat exchanger 30 it
Between connecting line 50 on.As shown in Fig. 2, restricting element 510 includes：Refrigerating capillary 511 and heating assisted capillary 512.
Refrigerating capillary 511 is filled as the throttling set under direct-cooled state, heating assisted capillary 512 as the throttling of heating state
It sets.
Bypass branch 60 is between indoor heat exchanger 40 and outdoor heat exchanger 30, and bypass branch 60 and restricting element
510 is in parallel.The flow of bypass branch 60 can carry out selecting design accordingly according to actual needs.520 company of being series at of filter
Road 50 is taken over, bypass branch 60 and restricting element 510 are connect with filter 520.Bypass branch 60 has solenoid electric valve
610, solenoid electric valve 610 is connect with control assembly.For detecting outdoor temperature, control assembly passes temperature sensor according to temperature
Sensor testing result controls opening and the closing of control valve 610, with control bypass branch 60 conducting state and off-state it
Between switch.
The control method of air conditioner 100, control method include：
Judge the operational mode of air conditioner 100；
When air conditioner 100 is in refrigeration mode, and temperature sensor detection outdoor temperature is less than 53 DEG C, solenoid electric valve
610 are closed, and bypass branch 60 is off.Hereby it is achieved that the normal refrigerating function of air conditioner 100；
When air conditioner 100 is in refrigeration mode, and temperature sensor detection outdoor temperature is not less than 53 DEG C, i.e. air conditioner
100 when being in superhigh temperature refrigeration mode, and control assembly controls solenoid electric valve 610 according to pre-set programs and periodically opens and close
It closes, bypass branch 60 is made periodically to switch between conducting state and off-state.Thus, it is possible to be realized using bypass branch 60
Unloading protecting acts on, and avoids the stoppage protection of air conditioner 100, improves the user experience of air conditioner 100.
When air conditioner 100 is in heating mode, and the outdoor temperature of temperature detection sensor detection is in -2 DEG C~2 DEG C models
When enclosing, i.e., when air conditioner 100 is in high humidity low-temperature heating pattern.The periodical opening and closing of solenoid electric valve 610, make bypass branch
Road 60 periodically switches between conducting state and off-state.Thus, it is possible to extend the heat pamp of air conditioner 100, improve
The user experience of air conditioner 100.
When air conditioner 100 is in heating mode, and temperature sensor detection outdoor temperature not at -2 DEG C~2 DEG C,
Solenoid electric valve 610 is closed, and bypass branch 60 is off.Thus, it is possible to realize the normal heating work(of air conditioner 100
Energy.
When air conditioner 100 is in defrosting mode, solenoid electric valve 610 is opened, and bypass branch 60 is in the conduction state.By
This, can utilize bypass branch 60 to increase the circulation of refrigerant, and the defrosting efficiency and defrosting so as to improve air conditioner 100 are imitated
Fruit.
As a result, by the way that the bypass branch 60 in parallel with restricting element 510 is arranged, when air conditioner 100 is in defrosting mode,
It can control that bypass branch 60 is in the conduction state, thus, it is possible to the flow of refrigerant be improved, so as to shorten air conditioner 100
Defrosting cycle, improves the defrosting efficiency and defrosting effect of air conditioner 100, and then improves the user experience of air conditioner 100.
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 included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of being detached from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The range of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of air conditioner, which is characterized in that including：
Compressor, the compressor have exhaust outlet and gas returning port；
Four-way valve, the four-way valve include the first valve port, the second valve port, third valve port and the 4th valve port, first valve port with
Exhaust outlet connection, the 4th valve port are connected to the gas returning port, first valve port and second valve port and described
The changeable connection of third valve port；
Outdoor heat exchanger, one end of the outdoor heat exchanger are connected to second valve port；
Indoor heat exchanger, one end of the indoor heat exchanger are connected to the third valve port；
Restricting element, the restricting element are series at the connecting line between the indoor heat exchanger and the outdoor heat exchanger
On；
Bypass branch, the bypass branch is between the indoor heat exchanger and the outdoor heat exchanger, and bypass branch
Road is in parallel with the restricting element, and the bypass branch, which has, controls its control switched between conducting state and off-state
Valve；
Wherein, when the air conditioner is in defrosting state, the bypass branch is in the conduction state.
2. air conditioner according to claim 1, which is characterized in that the restricting element is capillary module.
3. air conditioner according to claim 1, which is characterized in that the control valve is solenoid electric valve.
4. air conditioner according to claim 1, which is characterized in that further include：Control assembly, the control valve and the control
Component connection processed, the control assembly control the opening and closing of the control valve.
5. air conditioner according to claim 4, which is characterized in that further include：Temperature sensor, the temperature sensor with
The control assembly connection, the temperature sensor is for detecting outdoor temperature, and the control assembly is according to the temperature sensing
The testing result of device controls the opening and closing of the control valve.
6. air conditioner according to claim 1, which is characterized in that further include：Filter, the filter are series at described
Connecting line, the bypass branch and the restricting element are connect with the filter.
7. a kind of control method of air conditioner, which is characterized in that the air conditioner is according to described in any one of claim 1-6
Air conditioner, the control method includes：
Judge the operational mode of the air conditioner；
When the air conditioner is in refrigeration or heating mode, the bypass branch is off；
When the air conditioner is in defrosting mode, the bypass branch is in the conduction state.
8. the control method of air conditioner according to claim 7, which is characterized in that the air conditioner is according to claim
Air conditioner described in 5, when the air conditioner is in refrigeration mode, and temperature sensor detection outdoor temperature T1 >=default temperature
When spending T0, the control valve periodically opening and closing.
9. the control method of air conditioner according to claim 8, which is characterized in that T0=53 DEG C of the preset temperature.
10. the control method of air conditioner according to claim 7, which is characterized in that the air conditioner is to be wanted according to right
The air conditioner described in 5 is sought, when the air conditioner is in heating mode, and temperature sensor detection outdoor temperature T2 satisfactions：-
When 2 DEG C≤T2≤2 DEG C, the control valve periodically opening and closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629082.4A CN108800440B (en) | 2018-06-19 | 2018-06-19 | Air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810629082.4A CN108800440B (en) | 2018-06-19 | 2018-06-19 | Air conditioner and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108800440A true CN108800440A (en) | 2018-11-13 |
| CN108800440B CN108800440B (en) | 2020-09-25 |
Family
ID=64083276
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|---|---|---|---|
| CN201810629082.4A Active CN108800440B (en) | 2018-06-19 | 2018-06-19 | Air conditioner and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN110762755A (en) * | 2019-10-30 | 2020-02-07 | Tcl空调器(中山)有限公司 | Defrosting control device and control method of air conditioner |
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| CN110260554A (en) * | 2019-07-03 | 2019-09-20 | 芜湖美智空调设备有限公司 | Air conditioner |
| CN110542236A (en) * | 2019-09-12 | 2019-12-06 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof, and computer-readable storage medium |
| CN110542236B (en) * | 2019-09-12 | 2022-04-26 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof, and computer-readable storage medium |
| CN110762755A (en) * | 2019-10-30 | 2020-02-07 | Tcl空调器(中山)有限公司 | Defrosting control device and control method of air conditioner |
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| Publication number | Publication date |
|---|---|
| CN108800440B (en) | 2020-09-25 |
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Effective date of registration: 20240403 Address after: 528311 Factory Building No. 22-13, Lingang Road, Shunjiang Community, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee after: FOSHAN MIDEA KAILI REFRIGERATION EQUIPMENT Co.,Ltd. Country or region after: China Patentee after: GD MIDEA AIR-CONDITIONING EQUIPMENT Co.,Ltd. Address before: 528311 Lingang Road, Beijiao Town, Shunde District, Foshan, Guangdong Patentee before: GD MIDEA AIR-CONDITIONING EQUIPMENT Co.,Ltd. Country or region before: China Patentee before: MIDEA GROUP Co.,Ltd. |