CN107560088B - Control method of air conditioner - Google Patents
Control method of air conditioner Download PDFInfo
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- CN107560088B CN107560088B CN201710852745.4A CN201710852745A CN107560088B CN 107560088 B CN107560088 B CN 107560088B CN 201710852745 A CN201710852745 A CN 201710852745A CN 107560088 B CN107560088 B CN 107560088B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Detail Structures Of Washing Machines And Dryers (AREA)
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- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention provides a control method of a cabinet air conditioner with drying function, an indoor unit of the air conditioner comprises a clothes drying chamber and a plurality of heat exchange chambers, and has a heat exchange mode and a plurality of clothes drying modes, a heat exchanger is arranged in each heat exchange chamber, the indoor unit also comprises an indoor four-way valve, and the control method comprises the following steps: when the indoor unit operates in any clothes drying mode, the clothes drying chamber is communicated with the plurality of heat exchange chambers, so that air flow in the heat exchange chambers enters the clothes drying chamber and flows through wet clothes placed in the clothes drying chamber; when the indoor unit operates in a heat exchange mode, the clothes drying chamber and the heat exchange chambers are blocked to be controlled, and the heat exchange chambers are enabled to respectively blow heat exchange air flows indoors; and switching the communication states of the indoor four-way valve and the outdoor four-way valve arranged on the outdoor unit of the air conditioner so as to switch the indoor unit among various clothes drying modes. The control method of the invention controls the communication of the clothes drying chamber and the heat exchange chamber by adjusting the connection state of the double four-way valve, thereby realizing various clothes drying functions.
Description
Technical Field
The invention relates to the air conditioning technology, in particular to a control method of a multifunctional air conditioner indoor unit.
Background
The existing indoor unit of the vertical air conditioner is partially wasted in space, and the utilization rate of the air conditioner is not high except in the cooling and heating seasons. How to carry out necessary daily work by utilizing the air conditioner in a season with proper temperature is a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a control method of an air conditioner indoor unit with a clothes drying function.
Particularly, the invention provides a control method of a cabinet air conditioner with a drying function, an indoor unit of the air conditioner comprises a clothes drying chamber and a plurality of heat exchange chambers, and has a heat exchange mode and a plurality of clothes drying modes, a heat exchanger is arranged in each heat exchange chamber, the indoor unit further comprises an indoor four-way valve, and the control method comprises the following steps:
when the indoor unit operates in any one of the clothes drying modes, the clothes drying chamber is communicated with the plurality of heat exchange chambers, so that at least part of air flow in at least one heat exchange chamber enters the clothes drying chamber and flows through wet clothes placed in the clothes drying chamber;
when the indoor unit operates in the heat exchange mode, the clothes drying chamber and the heat exchange chambers are blocked, and the heat exchange chambers respectively blow heat exchange air flows to the indoor space; and
and switching the communication states of the indoor four-way valve and an outdoor four-way valve arranged on the outdoor unit of the air conditioner so as to switch the indoor unit among various clothes drying modes.
Further, the indoor unit includes a casing defining therein a first chamber and a second chamber as a heat exchange chamber and a third chamber as a clothes drying chamber, the first chamber having a first air inlet and a first air outlet that can be controlled to open or close, the second chamber having a second air outlet and a second air inlet that can be controlled to open or close, a first blower and a second blower being provided in the first chamber and the second chamber, respectively, to cause air in the casing to flow, a clothes drying module being provided in the third chamber, and the first chamber and the second chamber being configured to communicate with the third chamber through a first communication port and a second communication port that can be controlled to open, respectively, the control method further includes:
when the indoor unit works in any one of the clothes drying modes, the first air inlet, the second air outlet, the first communication port and the second communication port are opened, the first air outlet and the second air inlet are closed, the first fan and the second fan are operated, so that ambient air flows into the shell through the first air inlet, air in the first cavity enters the third cavity through the first communication port, air in the third cavity enters the second cavity through the second communication port, and the ambient air flows out of the shell through the second air outlet.
Further, a first heat exchanger and a second heat exchanger are respectively arranged in the first chamber and the second chamber to respectively exchange heat with air flowing through the first heat exchanger and the second heat exchanger, the indoor unit comprises an internal electronic expansion valve arranged between the first heat exchanger and the second heat exchanger to controllably regulate the flow of refrigerant flowing from the first heat exchanger to the second heat exchanger, the multiple clothes drying modes comprise a common clothes drying mode, a heating clothes drying mode and a refrigerating clothes drying mode, the outdoor unit of the air conditioner further comprises a compressor and an outdoor heat exchanger, and the control method further comprises the following steps:
when the indoor unit works in a common heating mode and a heating mode, the communication state of an indoor four-way valve and an outdoor four-way valve is adjusted, and a refrigerant is controlled to flow out of the compressor, then sequentially flow through the first heat exchanger, the internal electronic expansion valve, the second heat exchanger and the outdoor heat exchanger, and then flow back to the compressor, so that the first heat exchanger is controlled to heat in the common clothes drying mode.
Further, the control method further includes:
when the indoor unit works in the common clothes drying mode, controlling the inner electronic expansion valve to keep a preset first opening degree, so that the second heat exchanger is controlled to be cooled in the common clothes drying mode;
and when the indoor unit starts to work in the heating clothes drying mode, controlling the inner electronic expansion valve to be at the maximum opening degree, so that the second heat exchanger is controlled to heat in the heating clothes drying mode.
Further, the control method further includes:
and under the condition that the indoor unit works in the heating clothes drying mode, when the ambient humidity is greater than a preset humidity threshold value, reducing the opening degree of the inner electronic expansion valve to a preset second opening degree so that the second heat exchanger is controlled to cool until the ambient humidity is reduced to the humidity threshold value.
Further, the control method further includes:
when the indoor unit works in the refrigeration clothes drying mode, the communication state of an indoor four-way valve and an outdoor four-way valve is adjusted, and a refrigerant is controlled to flow out of the compressor, then sequentially flow through the outdoor heat exchanger, the first heat exchanger, the internal electronic expansion valve and the second heat exchanger, and then flow back to the compressor, so that the first heat exchanger heats and the second heat exchanger refrigerates.
Further, the indoor unit has a heat exchange mode, and the control method further includes:
when the indoor unit works in a heat exchange mode, the first air inlet, the first air outlet, the second air inlet and the second air outlet are opened, and the first communicating port and the second communicating port are closed, so that air entering the first chamber and the second chamber through the first air inlet and the second air inlet respectively sequentially passes through the first heat exchanger and the first fan and sequentially passes through the second heat exchanger and the second fan, independent heat exchange air flow is formed, and the air flows out of the first air outlet and the second air outlet to the ambient environment.
Further, the control method further includes:
after the indoor unit is switched to any one of the clothes drying modes, if the temperature at the first communication port cannot reach a preset initial temperature value within the first time, increasing the running frequency of the compressor;
and if the temperature at the first communication port can not reach a preset initial temperature value within a plurality of continuous first time periods, reducing the rotating speed of the first fan and the second fan.
Further, the control method further includes:
after the indoor unit works in any one of the clothes drying modes, if the temperature at the first communication port is higher than a preset operation temperature threshold value, increasing the rotating speeds of the first fan and the second fan;
and if the temperature at the first communication port is still higher than the operating temperature threshold value within a second time after the rotating speeds of the first fan and the second fan are increased, the operating frequency of the compressor is reduced.
Further, the control method further includes:
when the indoor unit works in any clothes drying mode, acquiring the temperature at the first communication port and the temperature at the second communication port; and
and when the temperature at the second communication port rises to a temperature difference with the temperature at the first communication port, which is less than or equal to a preset termination temperature difference, the clothes drying is judged to be finished.
The control method of the invention controls the communication state of the clothes drying chamber and the heat exchange chamber by adjusting the connection state of the double four-way valve, thereby realizing various clothes drying functions.
Furthermore, the control method of the invention realizes the drying function by controlling the first chamber with the first fan, the second chamber with the second fan and the third chamber with the drying module of the indoor unit to be communicated with a specific air path, and can continuously suck the ambient air and discharge the ambient air after drying when the drying mode is operated, thereby improving the drying efficiency and promoting the indoor air circulation.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating an air path of an indoor unit of an air conditioner in any drying mode according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a wind path of an indoor unit of an air conditioner in a heat exchange mode according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a refrigerant flow path of an air conditioner indoor unit in normal and heating clothes drying modes according to an embodiment of the invention;
fig. 5 is a schematic diagram of a refrigerant flow path of an air conditioner indoor unit in a cooling and drying mode according to an embodiment of the present invention;
fig. 6 is a schematic flowchart of a general dry mode control method of an air conditioner according to an embodiment of the present invention;
fig. 7 is a schematic flowchart of a heating dry mode control method of an air conditioner according to an embodiment of the present invention;
fig. 8 is a schematic flowchart of a cooling dry mode control method of an air conditioner according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic structural view of an air conditioner indoor unit 1 according to an embodiment of the present invention.
The indoor unit 1 of a cabinet air conditioner may generally comprise a casing. A clothes drying chamber and a plurality of heat exchange chambers may be defined within the housing. The air conditioner has a heat exchange mode and a plurality of clothes drying modes. When the air conditioner is operated in any of the drying modes, the drying chamber and the at least one heat exchange chamber are in controlled communication such that the airflow passes through the wet laundry placed within the drying chamber. When the air conditioner operates in the heat exchange mode, the clothes drying chamber and the heat exchange chamber are blocked in a controlled mode. An indoor four-way valve is arranged in the indoor unit and is configured to control the indoor unit to switch among a plurality of clothes drying modes together with an outdoor four-way valve arranged in the outdoor unit.
Specifically, the housing may define a first chamber 10 and a second chamber 20 as heat exchange chambers, and a third chamber 30 as a clothes drying chamber. The housing may be provided with a first air inlet 11 and a second air inlet 21 which can be controlled to open or close, and a first air outlet 12 and a second air outlet 22 which can be controlled to open or close, so as to allow or prevent the indoor ambient air from entering the first chamber 10 and the second chamber 20, respectively, and allow or prevent the air in the first chamber 10 and the second chamber 20 from flowing out to the indoor environment, respectively.
The first and second chambers 10 and 20 are provided therein with first and second blowers 100 and 200, respectively, to promote the flow of air inside the casing. The first and second chambers 10 and 20 are also provided therein with first and second heat exchangers 101 and 201, respectively, to exchange heat with air flowing therethrough, respectively. Further, a clothes drying module may be arranged in the third chamber 30, and the first chamber 10 and the second chamber 20 are configured to communicate with the third chamber 30 through a first communication port 31 and a second communication port 32, respectively, which may be controllably opened.
The indoor unit 1 has a plurality of drying modes including a general drying mode, a heating drying mode and a cooling drying mode.
Fig. 2 is a schematic view of an air path of the indoor unit 1 of the air conditioner in any drying mode according to an embodiment of the present invention.
Referring to fig. 2, the first intake vent 11 and the second intake vent 22 are controlled to be opened in any drying mode, and the first outlet vent 12 and the second intake vent 21 are controlled to be closed in any drying mode, so that ambient air flows into the housing through the first intake vent 11 and flows out of the housing through the second outlet vent 22. Further, the first fan 100 and the second fan 200 are configured to urge air within the first chamber into the third chamber 30 via the first communication port 31 and urge air within the third chamber 30 into the second chamber 20 via the second communication port 32 in any of the drying modes.
In particular, the indoor unit further has an indoor four-way valve 53 and is configured to controllably adjust the sequence of refrigerant flowing through the first heat exchanger 101 and the second heat exchanger 201 to control the indoor unit 1 to switch between the plurality of clothes drying modes in cooperation with the outdoor four-way valve 54 in the outdoor unit.
The indoor unit 1 of the present invention has the first chamber 10 having the first fan 100, the second chamber 20 having the second fan 200, and the third chamber 30 provided with the drying module, which are sequentially communicated, to implement a drying function, and can continuously suck ambient air and discharge it after drying the clothes in the operation of the drying mode, to improve drying efficiency and promote indoor air circulation.
In some embodiments of the present invention, the first heat exchanger 101 and the second heat exchanger 201 may be disposed inside the first intake vent 11 and the second intake vent 21, respectively. The first fan 100 and the second fan 200 are respectively disposed between the first heat exchanger 101 and the first air outlet 12 and between the second heat exchanger 201 and the second air outlet 22. Specifically, the first communication port 31 and the second communication port 32 are respectively disposed between the first air outlet 12 and the first fan 100 and between the second air inlet 21 and the second heat exchanger 201.
That is, the first communication port 31 is disposed downstream of the first heat exchanger 101. Thus, the ambient air entering the first chamber 10 from the first air inlet 11 may first flow through the first heat exchanger 101 and exchange heat therewith to form high-temperature air, and then be blown to the first communication port 31 by the first blower 100 and enter the third chamber 30 through the first communication port 31. Further, the second communication port 32 is disposed upstream of the second heat exchanger 201. Therefore, after entering the second chamber 20, the wet hot air flow formed in the third chamber 30 can first contact the second heat exchanger 201 to perform condensation and dehumidification to form relatively dry and low-temperature air, and then flows to the second air outlet 22 under the blowing of the second fan 200 and flows out to the ambient environment.
In some embodiments of the present invention, the clothes drying module is configured to be disposed on the air supply path from the first communication port 31 to the second communication port 32, so that the air entering the third chamber 30 through the first communication port 31 passes through the clothes drying module and then flows out of the third chamber 30 through the second communication port 32. That is, the first communication port 31 and the second communication port 32 may be staggered to ensure that all of the relatively dry and high temperature drying air entering the third chamber 30 can flow through the drying module and dry the wet laundry placed therein.
In some embodiments of the invention, the first chamber 10 and the second chamber 20 are configured to be located above and below the third chamber 30, respectively. The first communication port 31 is disposed at the front of the first partition plate 310 separating the first chamber 10 from the third chamber 30 and located at the downstream of the first blower 100, and the second communication port 32 is disposed at the rear of the second partition plate 320 separating the second chamber 20 from the third chamber 30 and located at the upstream of the second blower 200, so that the air in the first chamber 10 flows into the third chamber 30 from the top of the front side of the third chamber 30 and flows backward and downward through the clothes drying module and then flows out of the third chamber 30 from the bottom of the rear side of the third chamber 30.
That is, the first chamber 10, the third chamber 30, and the second chamber 20 are sequentially disposed inside the casing of the indoor unit 1 from top to bottom, and are separated from each other by the first partition plate 310 and the second partition plate 320, so that the internal structure of the indoor unit 1 is compact, and the overall floor area of the indoor unit 1 is reduced. Specifically, the first chamber 10 and the third chamber 30 may be separated by a first partition plate 310. The upper surface of the first partition plate 310 forms the bottom wall of the first chamber 10, and the lower surface thereof forms the upper surface of the third chamber 30. The first communication port 31 is a through hole opened in the first partition plate 310. Accordingly, the third chamber 30 and the second chamber 20 may be separated by a second partition plate 320. The upper surface of the second separation plate 320 forms the bottom wall of the third chamber 30, and the lower surface thereof forms the upper surface of the second chamber 20. The second communication port 32 is a through hole opened in the second separation plate 320. Further, the first communication port 31 and the second communication port 32 may have dampers that can be controlled to open or close, respectively, so that the first communication port 31 and the second communication port 32 are controlled to communicate or close.
In some embodiments of the present invention, air guiding structures may be disposed at both the first communication port 31 and the second communication port 32 to guide the air in the first chamber 10 into the third chamber 30 and guide the air in the third chamber 30 into the second chamber 20.
In some embodiments of the present invention, the clothes drying module includes a receiving tub 300, and a plurality of vent holes 301 are opened on a wall of the receiving tub 300 to allow air in the third chamber 30 to flow into and out of the receiving tub 300. The tub wall and at least part of the housing together define a drying air duct 302 to guide at least part of the air entering the third chamber 30 from the first communication port 31 to flow to the top, bottom and peripheral sides of the tub 300 facing away from the first communication port 31 and into the tub 300 through the vent hole 301.
That is, the drying air flow entering the third chamber 30 from the first chamber 10 may respectively enter the accommodating tub 300 in a plurality of portions and contact the moist air and the moist laundry therein via a plurality of vent holes 301 on the top wall, the side wall and the bottom wall of the accommodating tub 300, respectively. Specifically, at least a portion of the heat exchange air flow can flow from top to bottom along the drying air duct 302 defined between the side walls and the portion of the housing forming the third chamber 30 to the bottom of the third chamber 30 below the tub 300, and enter the tub 300 through the vent holes 301 on the side walls and the bottom wall during the flow. Thus, the top, peripheral side and bottom of the wet laundry in the receiving tub 300 may be in contact with the dry drying air flow, so that the drying efficiency of the indoor unit 1 is improved.
Further, the receiving tub 300 may be configured to be rotatable. In some embodiments of the present invention, a driving mechanism may be disposed in the third chamber 30 to drive the receiving tub 300 to perform a motion similar to the rotation of the drum of the washing machine. Specifically, the accommodating tub 300 may have a cylindrical or truncated cone shape and rotate along its central axis under the driving of the driving mechanism, so that the contact area between the damp laundry therein and the heat exchange air flow for drying the laundry entering the third chamber 30 from the first chamber 10 is increased, the drying efficiency is improved, and the drying effect is enhanced.
Fig. 4 is a schematic diagram of refrigerant flow paths of an air conditioner indoor unit in normal and heating clothes drying modes according to an embodiment of the invention.
Referring to fig. 4, the air conditioner has an outdoor unit connected to the indoor unit 1. The outdoor unit is provided with a compressor, an outdoor four-way valve 54, an outdoor heat exchanger, an external electronic expansion valve 52 and an external fan to form an outdoor heat exchange system. When the indoor unit 1 operates in the heating mode, the ordinary drying mode, and the heating and drying mode among the heat exchange modes, the outdoor four-way valve 54 is configured to allow the refrigerant to enter the heat exchange system of the indoor unit 1 through the refrigerant pipeline located at the upstream of the first heat exchanger 101 at that time, and to flow out of the heat exchange system of the indoor unit 1 through the refrigerant pipeline located at the downstream of the second heat exchanger 201 at that time.
As shown in fig. 4, the first heat exchanger 101 and the second heat exchanger 201 of the indoor unit 1 may be communicated with each other through a refrigerant pipeline, and further, an internal electronic expansion valve 51 may be disposed in the refrigerant pipeline to control the refrigerant flow rate and adjust the temperature thereof.
In some embodiments of the present invention, the first heat exchanger 101 is configured for controlled heating in any of the drying modes to heat air flowing therethrough. Furthermore, the indoor unit adjusts the flow rate of the refrigerant flowing from the first heat exchanger to the second heat exchanger through an internal electronic expansion valve arranged between the first heat exchanger and the second heat exchanger. The inner electronic expansion valve is configured to maintain a first opening degree smaller than a preset opening degree when the indoor unit operates in the normal clothes drying mode, so that the second heat exchanger 201 is controlled to be cooled in the normal clothes drying mode to cool air flowing through the second heat exchanger.
That is, when the indoor unit 1 is in the normal drying mode, the opening of the internal electronic expansion valve is small, so as to perform pressure reduction and throttling on the refrigerant flowing from the first heat exchanger 101 to the second heat exchanger 201, so that the refrigerant is rapidly evaporated and absorbed after entering the second heat exchanger 201, thereby rapidly cooling and dehumidifying the hot and humid air flowing through the second heat exchanger 201.
Specifically, ambient air may be drawn into the cabinet into the first chamber 10 by the first fan 100 and heat exchanged to form relatively dry high temperature gas by the first heat exchanger 101. Then, the high temperature gas is blown into the third chamber 30 by the first blower 100 and passes through the drying module where the damp laundry is stored. The high temperature air carries away moisture in the damp laundry to form a high temperature and high humidity air flow, and is sucked into the second chamber 20 by the second blower 200. The humid hot air stream entering the second chamber 20 is condensed in contact with the second heat exchanger 201 in cooling operation and the resulting temperature reduced dry air is blown out of the cabinet back into the surroundings.
The indoor unit 1 of the present invention has a first chamber 10 for forming a drying airflow, a third chamber 30 for placing wet clothes, and a second chamber 20 for cooling and dehumidifying, which are sequentially communicated, and a continuous drying airflow is formed in an air path communicated with the first chamber 10 to continuously blow a relatively dry and high-temperature drying airflow in the first chamber 10 into the third chamber 30, and take away moisture in air with high relative humidity in a drying module of the third chamber 30 to form wet and hot air, and the wet and hot air is sucked into the second chamber 20, and the moisture in the air with high relative humidity is condensed by a second heat exchanger 201 operating therein for cooling and dehumidifying the wet and hot air, and then the dried air is blown back into an indoor environment.
Therefore, the indoor unit 1 of the present invention can prevent the hot and humid air generated by drying clothes from directly flowing out from the indoor unit 1 to the indoor environment, so that the air conditioner performing clothes drying does not affect the temperature and humidity of the indoor environment, effectively prevent the indoor unit 1 from causing inconvenience or discomfort to indoor users in the clothes drying mode, and continuously provide dry and comfortable air to promote the circulation of the air in the indoor environment.
Further, the outdoor four-way valve 54 and the indoor four-way valve 53 may be configured to: when the indoor unit works in a heating clothes drying mode, the refrigerant flows out of the compressor, sequentially flows through the first heat exchanger, the electronic expansion valve, the second heat exchanger and the outdoor heat exchanger, and then flows back to the compressor, so that the first heat exchanger heats at a first temperature, and the second heat exchanger heats at a second temperature. At this time, the opening degree of the inner electronic expansion valve may be set to a maximum opening degree or to a preset opening degree having a larger opening degree.
Specifically, the refrigerant entering the second heat exchanger is subjected to primary heat exchange in the first heat exchanger, and the second temperature is lower than the first temperature due to the flow limiting effect of the internal electronic expansion valve, so that the hot and humid air flowing through the second heat exchanger is cooled and condensed, and dehumidification is realized. That is, the indoor unit 1 can perform a drying function while performing heating in a heating drying mode. The heating clothes drying mode and the common clothes drying mode have the same air path and refrigerant flow path. The first heat exchanger 101 and the second heat exchanger 201 can operate to heat at the same time, but the heating temperature of the second heat exchanger 201 is lower than that of the first heat exchanger 101, so that the high-humidity air formed in the third chamber 30 is reduced in temperature when entering the second chamber 20 and contacting the second heat exchanger 201 with a slightly lower temperature, and is analyzed to remove moisture therein and then is blown to the ambient environment through the second air outlet 22.
Further, in some embodiments of the present invention, the internal electronic expansion valve 51 may be configured to decrease the opening degree of the internal electronic expansion valve to a second preset opening degree when the ambient humidity is greater than the preset humidity threshold value under the condition that the indoor unit operates in the heating clothes drying mode, so that the second heat exchanger is controlled to cool until the ambient humidity falls to the humidity threshold value.
Optionally, the internal electronic expansion valve 51 may be further configured to decrease the opening degree to a preset second opening degree when the ambient humidity is greater than the preset upper humidity threshold value so that the second heat exchanger is controlled to be cooled until the ambient humidity reaches the preset lower humidity threshold value.
That is, when the indoor unit 1 operates in the heating clothes drying mode, if the indoor ambient humidity is less than or equal to the humidity threshold, the internal electronic expansion valve 51 may be set to the maximum opening or a larger opening to heat the second heat exchanger, and if the indoor ambient humidity is greater than the humidity threshold, the internal electronic expansion valve 51 decreases the opening to the opening in the normal clothes drying mode to cool the second heat exchanger.
Therefore, when the air conditioner operates in a heating clothes drying mode, the first heat exchanger and the second heat exchanger firstly heat simultaneously, the temperature of the second heat exchanger is slightly lower than that of the first heat exchanger, the condensation effect on hot humid air is relatively weak, and a part of the relatively humid air directly flows back to the room. At this time, the humidity sensor provided on the air conditioner may continuously monitor the ambient humidity of the indoor air near the air conditioner, and when the ambient humidity is greater than the preset humidity upper limit threshold, the second heat exchanger 201 is controlled to be cold. Until the ambient humidity is reduced to be less than or equal to the preset lower humidity threshold, the second heat exchanger 201 is controlled to heat. The ambient humidity is the relative humidity of the surrounding environment, and the upper threshold of humidity can be set to any humidity value between 60% and 80% according to the ambient temperature and the user requirement, for example, the upper threshold of humidity can be 80%, 70%, 60%, or the like. The lower threshold for humidity may be set to 50%, 40%, 30%, etc. accordingly.
That is, the indoor unit 1 operates the heating and drying mode to increase the indoor humidity. When the indoor environment is dry, the upper and lower heat exchangers are heated, and part of moisture remaining in the drying airflow is blown back to the outdoor environment. When the indoor environment is humid, the second heat exchanger 201 located downstream can be controlled to switch to operation cooling, so that most of moisture in the drying airflow is condensed and separated out when contacting the second heat exchanger 201, and the indoor unit 1 can blow a relatively comfortable and dry airflow indoors.
Fig. 5 is a schematic diagram of a refrigerant flow path of an air conditioner indoor unit in a cooling and drying mode according to an embodiment of the present invention.
Referring to fig. 5, when the indoor unit 1 operates in the cooling mode and the cooling and drying mode of the heat exchange mode, the outdoor four-way valve 54 is configured to switch states such that the refrigerant enters the heat exchange system of the indoor unit 1 through the refrigerant pipeline located at the upstream of the second heat exchanger 201 at the time, and exits the heat exchange system of the indoor unit 1 through the refrigerant pipeline located at the downstream of the first heat exchanger 101 at the time.
That is, in some embodiments of the present invention, the outdoor four-way valve 54 and the indoor four-way valve 53 are configured to: when the indoor unit works in a refrigerating and clothes drying mode, the refrigerant flows out of the compressor, sequentially flows through the outdoor heat exchanger, the first heat exchanger, the electronic expansion valve and the second heat exchanger, and then flows back to the compressor, so that the first heat exchanger heats at a third temperature, and the second heat exchanger refrigerates at a fourth temperature. Further, when the indoor unit 1 is operated in the cooling and drying mode, the internal electronic expansion valve 51 is set to a small opening degree. For example, the opening degree of the internal electronic expansion valve 51 may be the same as that when the indoor unit 1 operates in the normal drying mode.
That is, in the cooling and drying mode, the outdoor four-way valve 54 of the outdoor unit and the indoor four-way valve 53 of the indoor unit are both reversed, so that the high-temperature and high-pressure refrigerant flowing out of the compressor firstly flows through the outdoor heat exchanger, the refrigerant with slightly reduced temperature but still relatively hotter temperature flows into the first heat exchanger through the indoor four-way valve 53, so that the first heat exchanger has a third temperature (the temperature is still higher than the room temperature) which is slightly lower than the temperature, at this time, the refrigerant exchanges heat with the air flowing through the first heat exchanger, so that the part of air is heated to form a drying air flow, and then the temperature of the part of refrigerant is greatly reduced due to the flow limiting effect of the internal electronic expansion valve 51 and flows into the second heat exchanger for cooling, so that the second heat exchanger has a fourth temperature (the temperature is lower than the room temperature), thereby simultaneously achieving the.
In some embodiments of the present invention, the indoor unit 1 has a heat exchange mode, i.e., a normal heat exchange mode for adjusting the indoor ambient temperature. Specifically, referring to fig. 3, the first air inlet 11, the first air outlet 12, the second air inlet 21, and the second air outlet 22 are controlled to be opened in the heat exchange mode, and the first communication port 31 and the second communication port 32 are controlled to be closed in the heat exchange mode, so that the air entering the first chamber 10 and the second chamber 20 through the first air inlet 11 and the second air inlet 21 respectively passes through the first heat exchanger 101 and the first fan 100 in sequence and passes through the second heat exchanger 201 and the second fan 200 in sequence, and independent heat exchange air flows are formed and flow out to the ambient environment from the first air outlet 12 and the second air outlet 22 respectively.
Further, the internal electronic expansion valve 51 may be configured to be set to the maximum opening degree when the indoor unit 1 is in the heat exchange mode, so that the refrigerant flowing through the first heat exchanger 101 and the second heat exchanger 201 have substantially the same temperature, so as to achieve synchronous cooling or heating.
Specifically, the indoor unit 1 can be controlled by an input terminal such as a remote controller, and a user selects to enter a cooling or heating heat exchange mode to operate. In the heat exchange mode, the first communication port 31 and the second communication port 32 are controlled to be closed, and the third chamber 30 is closed. The first and second intake vents 11 and 21 are controlled to open to allow ambient air to enter the first and second chambers 10 and 20, respectively. In the heat exchange mode, the first heat exchanger 101 and the second heat exchanger 201 can simultaneously cool or simultaneously heat. The ambient air entering the first chamber 10 and the second chamber 20 exchanges heat with the first heat exchanger 101 and the second heat exchanger 201, respectively, to form heat exchange air flows, respectively. The first outlet 12 and the second outlet 22 are also controlled to open in the heat exchange mode, and allow the heat exchange air flows formed in the first chamber 10 and the second chamber 20 to flow out of the enclosure from the first outlet 12 and the second outlet 22, respectively. That is, in the heat exchange mode, the indoor unit 1 has two heat exchange portions (the first chamber 10 and the second chamber 20) for heat exchange and air supply, and the two heat exchange portions are respectively located at the upper portion and the lower portion of the indoor unit 1 to cover the indoor user movement range in the vertical direction and uniformly supply air to the indoor, thereby improving the heat exchange efficiency of the indoor unit 1 and enhancing the heat exchange effect.
In some embodiments of the invention, the indoor unit 1 further comprises at least two drip trays. Two water receiving trays may be disposed below the first heat exchanger 101 and the second heat exchanger 201, respectively, to collect condensed water formed on the outer surface of the first heat exchanger 101 and/or the second heat exchanger 201.
In some embodiments of the present invention, the first heat exchanger 101 and the second heat exchanger 201 may be both flat plate heat exchangers and are perpendicular to the air inlet paths of the first air inlet 11 and the second air inlet 21, respectively. Further, the first heat exchanger 101 and the second heat exchanger 201 may each have a transverse dimension not less than the width of the two air inlets and a longitudinal dimension not less than the height of the two air inlets, so as to completely cover the first air inlet 11 and the second air inlet 21 inside the housing, so as to ensure that the air entering the housing through the first air inlet 11 and the second air inlet 21 exchanges heat.
In other embodiments of the present invention, the first heat exchanger 101 and the second heat exchanger 201 may also have a radian or a bending angle, etc. to increase the heat exchange area thereof and improve the heat exchange efficiency.
The air conditioner has control methods respectively working in a heat exchange mode, a clothes drying mode, a heating clothes drying mode and a refrigerating clothes drying mode. The heat exchange mode comprises a refrigeration mode and a heating mode, and the corresponding control method is a control method of a common heat pump system air conditioner and is not described herein again.
Fig. 6 is a schematic flowchart of a drying mode control method of an air conditioner according to an embodiment of the present invention. Referring to fig. 6, the control method of the air conditioner when operating in the general drying mode includes:
and step S100, operating a common clothes drying mode.
And S102, selecting a gear of a common clothes drying mode.
Step S104, obtaining the indoor temperature TrOutdoor temperature TwAnd according to TrAnd TwAnd acquiring the starting running frequency Hs of the compressor.
Step S106, the outdoor four-way valve 54 is switched to the first connection state, so that the compressor is in the H statesThe frequency initiates operation.
Step S108, the opening degree of the internal electronic expansion valve 51 is adjusted to a first internal opening degree FN0The outer electronic expansion valve 52 is adjusted to the maximum opening degree.
Step S110, the first fan 100 and the second fan 200 are started to operate, the first air outlet 12 and the second air inlet 21 are closed, and the first air inlet 11, the second air outlet 22, the first communication port 31, and the second communication port 32 are opened.
Step S112, obtaining the temperature T at the first communication port 31gAnd the temperature T at the second communication port 32s。
Step S114, judging TgWhether or not the initial temperature value T is reachedg0If yes, go to step S118, otherwise go to step S116;
step S116, judging whether the clothes drying mode continuously operates for the first time, if so, executing step S120, otherwise, returning to continue executing step S114;
step S120, increasing the running frequency of the compressor by a frequency difference value Hz；
Step S124, judging TgWhether T has not yet been reachedg0If yes, step S127 is executed, and if no, step S118 is executed.
In step S127, the rotation speed of first fan 100 and the rotation speed of second fan 200 are both decreased by a rotation speed value Z, and the process returns to step S114.
Step S118, judging TgWhether it is higher than the operating temperature threshold Tg1If yes, go to step S122, otherwise go to step S130.
Step S122, increasing the rotation speed of the first fan 100 and the rotation speed of the second fan 200 by a rotation speed value Z.
Step S126, judging TgWhether or not it is still higher than Tg1If yes, go to step S128, otherwise go to step S130.
Step S128, reducing the running frequency of the compressor to Ht。
Step S130, judging TgAnd TsIf the difference between the two is less than or equal to the ending temperature difference, step S132 is executed, otherwise step S118 is executed.
And step S132, finishing drying the clothes.
In step S102, there may be a plurality of gear positions of the drying mode, and each gear position has an initial temperature value T with different temperatures corresponding to the gear positiong0. For example, the gears can be divided into: soft, normal and strong, and the corresponding initial temperature values can be 50 ℃, 60 ℃ and 70 ℃. Of course, the clothes drying gears can be divided into a plurality of gears, and the first gear, the second gear, the third gear and the like are named and ordered in sequence, and the corresponding clothes drying temperature (initial temperature value T) is the corresponding clothes drying temperatureg0) The extract can be further refined to 50 deg.C, 55 deg.C, 60 deg.C, etc. Initial temperature value T corresponding to clothes drying mode of lowest gear and highest gearg0It can also be set according to specific requirements, for example, it can be 40 ℃ and 80 ℃ respectively.
The compressor of the outdoor unit of the air conditioner has a reference operation frequency H, and a specific numerical value thereof is obtained from test data, preferably, a rated refrigerating operation frequency of the compressor. In step S104, the compressor is operated at the starting operation frequency H in the clothes drying modesCan be obtained according to the following formula:
Hs＝H*(1-Tr/Tg0-(Tw-20)/100))
where H is the reference operating frequency value in Hertz, TrThe temperature value of the environment where the indoor unit 1 is located is in centigrade,Twthe temperature value T of the environment of the outdoor unit in centigradeg0I.e. an initial temperature value in degrees celsius.
That is, the running frequency of the compressor after being calibrated according to the indoor and outdoor temperatures by the above formula is used for ensuring that the indoor unit has the best clothes drying efficiency by adjusting the temperature of the heat exchanger.
In step S106, the first mode of the outdoor four-way valve 54 is the first connection state thereof, and specifically, the connection state of the outdoor four-way valve when the air conditioner is in the heating mode (as shown in fig. 4).
First inner opening degree F of the inner electronic expansion valve 51N0Can be obtained according to the test data and preset in the running program, and the first inner opening degree FN0May be small to ensure that the surface temperature of the second heat exchanger 201 is low enough to condense the hot, humid air flowing through it.
In some embodiments of the present invention, step S120 may be further followed by one or more times of steps S114 to S120. That is, the air conditioner may continuously operate the drying mode for a plurality of first time periods, and if the temperature of the drying air flow at the first communication port 31 has not reached the initial temperature value corresponding to the drying gear, the frequency of the compressor may be increased for a plurality of times. Specifically, the first time may be any value between 5 and 15 minutes, for example, may be 8 minutes, 10 minutes, 12 minutes, or the like. Each increasing frequency difference HzCan be obtained by the following formula:
Hz＝H*(Tg0-Tg)/Tg0
wherein HzIs the frequency difference in hertz, i.e. the increase or decrease in the frequency regulation of the compressor, TgIs the value of the temperature at the first communication port 31 in degrees celsius.
Further, the number of times of executing steps S114 to S120 in a cycle may preferably be increased to 1, that is, the temperature T of the drying air flow at the first communication port 31 is increased after the operating frequency of the compressor is continuously increased twicegStill not meeting the requirements, a lowering of the first fan 100 and the second wind is performedStep S127 of the rotation speed of the machine 200.
Further, in step S126, the reduced rotation speed value Z of the fan may be obtained by the following formula:
Z＝10*(Tg-Tg0)
wherein Z is the rotating speed value of the fan taking r/min as a unit. If the temperature T of the drying air flow at the first communication port 31gAnd the clothes drying requirement can not be met continuously, so that the rotating speed of the fan is reduced, and the heat loss is reduced.
According to the control method for the clothes drying mode, when the temperature of the drying air flow is adjusted, the frequency of the compressor is adjusted, namely increased, and then the rotating speed of the fan is reduced, so that the clothes drying efficiency is ensured. In step S118, the operating temperature threshold may be slightly higher than the initial temperature threshold, for example, may be 1 ℃ to 3 ℃ higher than the initial temperature threshold. Therefore, the frequency of the compressor or the rotating speed of the fan can be prevented from being adjusted too frequently on the premise of meeting the clothes drying requirement.
In some embodiments of the present invention, step S114 or step S124 may be followed by one or more steps S118 to S122. That is, the air conditioner continues to detect the drying airflow for a plurality of times after the drying airflow meets the temperature required by the gear, and when the temperature of the drying airflow is too high, the wind speeds of the first fan 100 and the second fan 200 are increased to promote the air flow to regulate the temperature. If the temperature of the drying air stream continues to be higher after the wind speed adjustment, the compressor operating frequency value H may be decreased accordinglyt. Optionally, in step S126, it may be specifically determined that T is within a second time after the rotation speeds of the first fan and the second fan are increasedgWhether or not it is still higher than Tg1. The duration of the second time may be approximately equal to the duration of the first time.
Further, HtThe specific value of (b) can be obtained by the following formula:
Ht＝Hs*(1-(Tg-Tg0)/100)
wherein HtIs the value of the compressor operating frequency in hertz.
In step S130, TsTemperature at the second communication port 32 in degrees centigradeAnd (4) degree value. The termination temperature difference may be specifically set according to the user's requirement, and may be, for example, 0 ℃, 1 ℃ or 2 ℃.
Fig. 7 is a schematic flowchart of a heating dry mode control method of an air conditioner according to an embodiment of the present invention. Referring to fig. 7, the control method of the air conditioner when operating in the heating clothes drying mode includes:
and step S200, operating a heating clothes drying mode.
Step S202, selecting a gear of a heating clothes drying mode.
And step S204, operating a heating mode in the heat exchange mode.
Step S206, the first fan 100 and the second fan 200 are started to operate, the first air outlet 12 and the second air inlet 21 are closed, and the first air inlet 11, the second air outlet 22, the first communication port 31, and the second communication port 32 are opened.
In step S208, the temperature T at the first communication port 31 is obtainedgTemperature T at the second communication port 32sAnd indoor ambient humidity.
In step S210, it is determined whether the ambient humidity is greater than the humidity threshold, if so, step S212 is executed, and if not, step S211 is executed.
In step S211, both the inner electronic expansion valve 51 and the outer electronic expansion valve 52 are kept at the opening degrees in the heating mode.
Step S212, the opening degree of the internal electronic expansion valve 51 is adjusted to a second opening degree FN1The opening degree of the outer electronic expansion valve 52 is adjusted to FW1。
Step S214, judging TgWhether or not the initial temperature value T is reachedg0If yes, go to step S218, otherwise go to step S216;
step S216, judging whether the clothes drying mode continuously operates for the first time, if so, executing step S220, otherwise, returning to execute step S210;
step S220, increasing the running frequency of the compressor by a frequency difference value Hz；
Step S224, judge TgWhether T has not yet been reachedg0If yes, step S227 is executed, and if no, step S218 is executed.
In step S227, the rotation speed of first fan 100 and the rotation speed of second fan 200 are both reduced by a rotation speed value Z, and step S210 is executed again.
Step S218, judging TgWhether it is higher than the operating temperature threshold Tg1If yes, go to step S222, otherwise go to step S230.
Step S222, increasing the rotation speed of the first fan 100 and the rotation speed of the second fan 200 by a rotation speed value Z.
Step S226, judge TgWhether or not it is still higher than Tg1If yes, go to step S228, otherwise go to step S230.
Step S228, reducing the running frequency of the compressor to Ht。
Step S230, judging TgAnd TsIf the difference between the two is less than or equal to the ending temperature difference, if yes, go to step S232, and if no, go back to step S218.
And step S232, finishing heating and drying clothes.
In the above steps, the heating clothes drying mode can be provided with a plurality of gears as the clothes drying mode, and each gear also has an initial temperature value T with different temperatures corresponding to the gearsg0. For example, the gears can also be divided into: soft, normal and strong, and the corresponding initial temperature values can be 50 ℃, 60 ℃ and 70 ℃. Of course, the heating clothes drying gear can be divided into a plurality of gears, and the first gear, the second gear, the third gear and the like are named and ordered in sequence, and the heating clothes drying temperature (initial temperature value T) corresponding to the gear is used for heating clothes dryingg0) The extract can be further refined to 50 deg.C, 55 deg.C, 60 deg.C, etc. Initial temperature value T corresponding to clothes drying mode of lowest gear and highest gearg0It can also be set according to specific requirements, for example, it can be 40 ℃ and 80 ℃ respectively.
In step S210, if the ambient humidity is greater than the humidity threshold, the second heat exchanger 201 needs to be forced to cool the hot and humid air passing through the second heat exchanger, that is, the opening degree of the internal electronic expansion valve 51 is changed to perform flow limiting and pressure reduction on the refrigerant flowing to the second heat exchanger 201. Preferably, the humidity threshold may be 70%. If the environmental humidity is less than or equal to the humidity threshold, the heat exchanger and the fan of the indoor unit 1 can be controlled by directly using the control method of the heating mode.
After step S210 is executed, that is, when the second heat exchanger 201 continues to cool, the air conditioner continuously monitors the ambient humidity and determines the magnitude of the ambient humidity and the humidity threshold, and after the ambient humidity is reduced to below the humidity threshold, the opening degree of the internal electronic expansion valve 51 is restored, so that the two heat exchangers simultaneously heat again.
In step S212, the opening degree of the internal electronic expansion valve 51 is set to the second opening degree FN1Can be obtained according to the test data and preset in the program, and is smaller than the first opening FN0. Opening degree F of the outer electronic expansion valve 52W1Can be obtained according to the test data and is preset in the running program.
As can be seen from the above steps, the temperature adjustment of the drying air flow at the first communication port 31 in the heating drying mode is the same as the control method for adjusting the drying air flow in the drying mode.
Fig. 8 is a schematic flowchart of a cooling dry mode control method of an air conditioner according to an embodiment of the present invention. Referring to fig. 8, the control method of the air conditioner when operating in the cooling and drying mode includes:
and step S300, operating a refrigeration clothes drying mode.
And step S302, selecting a refrigeration clothes drying mode gear.
Step S304, obtaining the indoor temperature TrOutdoor temperature TwAnd according to TrAnd TwAnd acquiring the starting running frequency Hs of the compressor.
Step S306, the indoor four-way valve 53 and the outdoor four-way valve 54 are switched to the second communication state, and the compressor is switched to HsThe frequency initiates operation.
Step S308, the opening degree of the internal electronic expansion valve 51 is adjusted to a first internal opening degree FN0The outer electronic expansion valve 52 is adjusted to the maximum opening degree.
Step S310, the first fan 100 and the second fan 200 are started to operate, the first air outlet 12 and the second air inlet 21 are closed, and the first air inlet 11, the second air outlet 22, the first communication port 31, and the second communication port 32 are opened.
In step S312, the temperature T at the first communication port 31 is obtainedgAnd the temperature T at the second communication port 32s。
Step S314, judging TgWhether or not the initial temperature value T is reachedg0If yes, go to step S318, otherwise go to step S316;
step S316, judging whether the clothes drying mode continuously operates for the first time, if so, executing step S320, otherwise, returning to continue executing step S314;
step S320, increasing the running frequency of the compressor by a frequency difference value Hz；
Step S324, judge TgWhether T has not yet been reachedg0If yes, step S327 is executed, and if no, step S318 is executed.
Step S327, decreasing the rotation speed of the first fan 100 and the rotation speed of the second fan 200 by a rotation speed value Z, and returning to execute step S314.
Step S318, judge TgWhether it is higher than the operating temperature threshold Tg1If yes, go to step S322, otherwise go to step S330.
Step S322, increasing the rotation speed of the first fan 100 and the rotation speed of the second fan 200 by a rotation speed value Z.
Step S326, determine TgWhether or not it is still higher than Tg1If yes, go to step S328, otherwise go to step S330.
Step S328, reducing the compressor operation frequency to Ht。
Step S330, judging TgAnd TsIf the difference between the two is less than or equal to the ending temperature difference, if yes, go to step S332, otherwise, go back to step S318.
And step S332, finishing drying the clothes.
In the above steps, the outdoor four-way valve 54 is switched to the second communication state, that is, the communication state of the outdoor four-way valve 54 when the air conditioner operates in the cooling mode (as shown in fig. 5). In the cooling and drying mode, the high-temperature and high-pressure refrigerant flowing out of the compressor sequentially passes through the outdoor heat exchanger and the outer electronic expansion valve 52 with the opening degree set to be the maximum and then enters the first heat exchanger, at the moment, the refrigerant is still the high-temperature refrigerant but is lower in temperature relative to the refrigerant entering the first heat exchanger in the heating and drying mode, the refrigerant exchanges heat in the first heat exchanger, and the refrigerant is subjected to current limiting and pressure reduction through the inner electronic expansion valve to reach a lower temperature capable of meeting the cooling requirement, so that condensation and dehumidification of humid and hot air can be simultaneously performed, and the refrigeration air can be provided indoors. The standard for judging the completion of drying in the refrigeration clothes drying mode is the same as the clothes drying mode and the heating clothes drying mode.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. A control method of a cabinet air conditioner with drying function, the indoor unit of the air conditioner comprises a shell, a first chamber and a second chamber which are used as heat exchange chambers and a third chamber which is used as a clothes drying chamber are limited in the shell,
the first chamber is provided with a first air inlet and a first air outlet which can be controlled to be opened or closed,
the second chamber is provided with a second air outlet and a second air inlet which can be controlled to be opened or closed,
a first fan and a second fan are respectively arranged in the first chamber and the second chamber to promote the air in the shell to flow,
a clothes drying module is arranged in the third chamber, and the first chamber and the second chamber are respectively communicated with the third chamber through a first communication port and a second communication port which can be controlled to open;
the outdoor unit of the air conditioner is provided with a compressor; the indoor unit is provided with a heat exchange mode and a plurality of clothes drying modes, a heat exchanger is arranged in each heat exchange cavity, the indoor unit further comprises an indoor four-way valve, the plurality of clothes drying modes comprise a common clothes drying mode, a heating clothes drying mode and a refrigerating clothes drying mode, and the control method comprises the following steps:
when the indoor unit operates in the heat exchange mode, the clothes drying chamber, the first chamber and the second chamber are blocked, and heat exchange air flows are blown into the room by the first chamber and the second chamber respectively;
when the indoor unit works in any one of the clothes drying modes, the first air inlet, the second air outlet, the first communication port and the second communication port are opened, the first air outlet and the second air inlet are closed, the first fan and the second fan are operated, so that ambient air flows into the shell through the first air inlet, air in the first cavity is made to enter the third cavity through the first communication port, and air in the third cavity is made to enter the second cavity through the second communication port and flow out of the shell through the second air outlet;
switching the communication states of the indoor four-way valve and an outdoor four-way valve arranged on the outdoor unit of the air conditioner so as to switch the indoor unit among a plurality of clothes drying modes;
after the indoor unit is switched to any one of the clothes drying modes, if the temperature at the first communication port cannot reach a preset initial temperature value within the first time, increasing the running frequency of the compressor;
if the temperature at the first communication port cannot reach a preset initial temperature value within a plurality of continuous first time periods, reducing the rotating speed of the first fan and the second fan; and
after the indoor unit works in any one of the clothes drying modes, if the temperature at the first communication port is higher than a preset operation temperature threshold value, increasing the rotating speeds of the first fan and the second fan;
and if the temperature at the first communication port is still higher than the operating temperature threshold value within a second time after the rotating speeds of the first fan and the second fan are increased, the operating frequency of the compressor is reduced.
2. The control method as claimed in claim 1, wherein a first heat exchanger and a second heat exchanger are respectively disposed in the first chamber and the second chamber to respectively exchange heat with air flowing therethrough, the indoor unit includes an internal electronic expansion valve disposed between the first heat exchanger and the second heat exchanger to controllably adjust a flow rate of refrigerant flowing from the first heat exchanger to the second heat exchanger, the outdoor unit of the air conditioner further has an outdoor heat exchanger, and wherein the control method further comprises:
when the indoor unit works in a common clothes drying mode and a heating clothes drying mode, the communication state of an indoor four-way valve and an outdoor four-way valve is adjusted, and a refrigerant is controlled to flow out of the compressor, then sequentially flow through the first heat exchanger, the internal electronic expansion valve, the second heat exchanger and the outdoor heat exchanger, and then flow back to the compressor, so that the first heat exchanger is controlled to heat in the common clothes drying mode and the heating clothes drying mode.
3. The control method according to claim 2, further comprising:
when the indoor unit works in the common clothes drying mode, controlling the inner electronic expansion valve to keep a preset first opening degree, so that the second heat exchanger is controlled to be cooled in the common clothes drying mode;
and when the indoor unit starts to work in the heating clothes drying mode, controlling the inner electronic expansion valve to be at the maximum opening degree, so that the second heat exchanger is controlled to heat in the heating clothes drying mode.
4. The control method according to claim 2, further comprising:
and under the condition that the indoor unit works in the heating clothes drying mode, when the ambient humidity is greater than a preset humidity threshold value, reducing the opening degree of the inner electronic expansion valve to a preset second opening degree so that the second heat exchanger is controlled to cool until the ambient humidity is reduced to the humidity threshold value.
5. The control method according to claim 2, further comprising:
when the indoor unit works in the refrigeration clothes drying mode, the communication state of an indoor four-way valve and an outdoor four-way valve is adjusted, and a refrigerant is controlled to flow out of the compressor, then sequentially flow through the outdoor heat exchanger, the first heat exchanger, the internal electronic expansion valve and the second heat exchanger, and then flow back to the compressor, so that the first heat exchanger heats and the second heat exchanger refrigerates.
6. The control method according to claim 2, further comprising:
when the indoor unit works in the heat exchange mode, the first air inlet, the first air outlet, the second air inlet and the second air outlet are opened, and the first communication port and the second communication port are closed, so that air entering the first chamber and the second chamber through the first air inlet and the second air inlet respectively sequentially passes through the first heat exchanger and the first fan and sequentially passes through the second heat exchanger and the second fan, independent heat exchange air flows are formed, and the air flows out of the first air outlet and the second air outlet to the ambient environment respectively.
7. The control method according to claim 1, further comprising:
when the indoor unit works in any clothes drying mode, acquiring the temperature at the first communication port and the temperature at the second communication port; and
and when the temperature at the second communication port rises to a temperature difference with the temperature at the first communication port, which is less than or equal to a preset termination temperature difference, the clothes drying is judged to be finished.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515575Y (en) * | 2001-11-13 | 2002-10-09 | 刘义 | Indoor cabinet type air conditioner host machine |
| JP2003130436A (en) * | 2001-10-23 | 2003-05-08 | Funai Electric Co Ltd | Air conditioner |
| JP2009039145A (en) * | 2007-08-06 | 2009-02-26 | Panasonic Corp | Bathroom ventilating and drying system |
| CN102206916A (en) * | 2011-06-23 | 2011-10-05 | 海尔集团公司 | Heat pump drying system for drying clothes by using roller and control method of heat pump drying system |
| JP5122881B2 (en) * | 2007-07-17 | 2013-01-16 | シャープ株式会社 | Air conditioner |
| JP5127868B2 (en) * | 2010-04-02 | 2013-01-23 | 三菱電機株式会社 | Dehumidifier |
| JP5729426B2 (en) * | 2013-07-11 | 2015-06-03 | ダイキン工業株式会社 | Air conditioner |
| CN104775266A (en) * | 2014-01-15 | 2015-07-15 | 海尔集团公司 | Heat pump washing and drying all-in-one machine and control method |
| JP2016075441A (en) * | 2014-10-08 | 2016-05-12 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN105953334A (en) * | 2016-05-16 | 2016-09-21 | 珠海格力电器股份有限公司 | Cabinet air conditioner, cabinet air conditioner system and air conditioner control method |
| CN105986451A (en) * | 2015-03-17 | 2016-10-05 | Lg电子株式会社 | Clothes treatment apparatus and method of controlling the same |
| CN106679081A (en) * | 2016-12-14 | 2017-05-17 | 青岛海尔空调器有限总公司 | Air conditioner and drying control method thereof |
| CN106839200A (en) * | 2017-01-06 | 2017-06-13 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and its control method with drying component |
-
2017
- 2017-09-19 CN CN201710852745.4A patent/CN107560088B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003130436A (en) * | 2001-10-23 | 2003-05-08 | Funai Electric Co Ltd | Air conditioner |
| CN2515575Y (en) * | 2001-11-13 | 2002-10-09 | 刘义 | Indoor cabinet type air conditioner host machine |
| JP5122881B2 (en) * | 2007-07-17 | 2013-01-16 | シャープ株式会社 | Air conditioner |
| JP2009039145A (en) * | 2007-08-06 | 2009-02-26 | Panasonic Corp | Bathroom ventilating and drying system |
| JP5127868B2 (en) * | 2010-04-02 | 2013-01-23 | 三菱電機株式会社 | Dehumidifier |
| CN102206916A (en) * | 2011-06-23 | 2011-10-05 | 海尔集团公司 | Heat pump drying system for drying clothes by using roller and control method of heat pump drying system |
| JP5729426B2 (en) * | 2013-07-11 | 2015-06-03 | ダイキン工業株式会社 | Air conditioner |
| CN104775266A (en) * | 2014-01-15 | 2015-07-15 | 海尔集团公司 | Heat pump washing and drying all-in-one machine and control method |
| JP2016075441A (en) * | 2014-10-08 | 2016-05-12 | パナソニックＩｐマネジメント株式会社 | Air conditioner |
| CN105986451A (en) * | 2015-03-17 | 2016-10-05 | Lg电子株式会社 | Clothes treatment apparatus and method of controlling the same |
| CN105953334A (en) * | 2016-05-16 | 2016-09-21 | 珠海格力电器股份有限公司 | Cabinet air conditioner, cabinet air conditioner system and air conditioner control method |
| CN106679081A (en) * | 2016-12-14 | 2017-05-17 | 青岛海尔空调器有限总公司 | Air conditioner and drying control method thereof |
| CN106839200A (en) * | 2017-01-06 | 2017-06-13 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and its control method with drying component |
Non-Patent Citations (1)
| Title |
|---|
| "热泵式干衣机的试验研究与性能分析";王大伟，翁文兵等;《制冷与空调》;20081228(第6期);第42-46页 * |
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