CN114322087B - Indoor unit, control method and device of air conditioner, air conditioner and storage medium - Google Patents
Indoor unit, control method and device of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN114322087B CN114322087B CN202111619782.3A CN202111619782A CN114322087B CN 114322087 B CN114322087 B CN 114322087B CN 202111619782 A CN202111619782 A CN 202111619782A CN 114322087 B CN114322087 B CN 114322087B
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Abstract
The invention discloses an indoor unit, a control method and a device of an air conditioner, the air conditioner and a storage medium, wherein the indoor unit comprises: a case; the first heat exchanger and the second heat exchanger are symmetrically arranged in the box body; the first air supply port and the second air supply port are positioned at the front side of the box body and correspond to the first heat exchanger and the second heat exchanger respectively; the first air inlet and the second air inlet are positioned at the lower side of the box body and correspond to the first heat exchanger and the second heat exchanger respectively; the first air inlet and the second air inlet are respectively and correspondingly provided with a first air inlet regulating valve and a second air inlet regulating valve, and the air quantity flowing through the first heat exchanger and the second heat exchanger is correspondingly regulated by controlling the first air inlet regulating valve and the second air inlet regulating valve. The indoor machine box has small size and wider applicable installation place. Under the refrigeration working condition, the set air outlet temperature and humidity are achieved by means of measures such as adjusting the operation frequency of the compressor, and the system has the advantages of being simple in structure and higher in energy efficiency.
Description
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to an indoor unit, a control method and apparatus for an air conditioner, and a storage medium.
Background
In recent years, the air duct machine is increasingly applied to various commercial and household places because the air duct machine does not occupy indoor area and has beautiful decoration, but the depth of a box body is large, the installation place is limited, and the air duct machine becomes a big pain point of the air duct machine. In addition, the temperature and humidity are separately controlled in the current industry, and a double-evaporation-temperature air conditioning system is mostly adopted, so that the system has the defects of complex structure, higher cost, higher control difficulty and the like, and particularly cannot meet the requirements of large dehumidification amount and comfortable air outlet temperature aiming at the Yangtze river basin with high humidity in summer; still other scholars propose to generate two cold sources with different temperatures by one compressor, but the mode has the problems of low refrigeration efficiency, unreliable operation and the like.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. The invention aims to provide an indoor unit, a control method and device of an air conditioner, the air conditioner and a storage medium.
The invention provides an indoor unit, which comprises:
A case;
the first heat exchanger and the second heat exchanger are symmetrically arranged in the box body;
the first air supply port and the second air supply port are positioned at the front side of the box body and correspond to the first heat exchanger and the second heat exchanger respectively;
the first air inlet and the second air inlet are positioned at the lower side of the box body and correspond to the first heat exchanger and the second heat exchanger respectively;
the first air inlet and the second air inlet are respectively and correspondingly provided with a first air inlet regulating valve and a second air inlet regulating valve, and the air quantity flowing through the first heat exchanger and the second heat exchanger is correspondingly regulated by controlling the first air inlet regulating valve and the second air inlet regulating valve.
In addition, the indoor unit according to the embodiment of the invention may further have the following additional technical features:
further, the first heat exchanger and the second heat exchanger are disposed obliquely with respect to a horizontal direction.
Further, the inclination angle of the first heat exchanger and the second heat exchanger is 35-45 degrees.
Further, the indoor unit further includes:
the first air return port and the second air return port are positioned at the rear side of the box body and correspond to the first heat exchanger and the second heat exchanger in bilateral symmetry respectively;
The first air return opening and the second air return opening are respectively and correspondingly provided with a first air return regulating valve and a second air return regulating valve, and the air quantity flowing through the first air supply opening and the second air supply opening is correspondingly regulated by controlling the first air return regulating valve and the second air return regulating valve.
Further, the indoor unit further includes:
the first humidifying device and the second humidifying device are respectively and correspondingly arranged at the lower edges of the first air supply opening and the second air supply opening and are used for humidifying the air flowing through the first air supply opening and the second air supply opening.
According to the indoor unit provided by the embodiment of the invention, the box body is small in size, the occupied indoor area is small, and the applicable installation place is wider. Under refrigeration working conditions, by adjusting the operation frequency of the compressor, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve and the second air inlet regulating valve, the opening of the first air return regulating valve and the opening of the second air return regulating valve, starting a humidifying device and other measures, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the air outlet humidity are set by a user, the requirements of different regions and users are met, and the system has the advantages of simple structure and higher energy efficiency.
The present invention also provides a control method of an air conditioner, where the air conditioner includes the indoor unit according to any of the embodiments, and the method includes the following steps:
determining that the air conditioner is in a stable running state;
acquiring the current air supply temperature and the current air supply humidity of the first air supply opening and the second air supply opening at intervals of a first preset time;
determining a current dew point temperature according to the acquired current air supply temperature and current air supply humidity, and determining a target dew point temperature according to a target temperature and target humidity set by a user;
and controlling one or more of the operating frequency of the compressor of the air conditioner, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve, the opening of the second air inlet regulating valve, the opening of the first return air regulating valve and the opening of the second return air regulating valve according to the current air supply temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current air supply temperature and the current air supply humidity correspondingly reach the target temperature and the target humidity.
In addition, the control method of the air conditioner according to the embodiment of the invention may further have the following additional technical features:
Further, one or more of an operating frequency of a compressor of the air conditioner, an opening of an electronic expansion valve, an opening of a first air intake regulating valve, an opening of a second air intake regulating valve, an opening of a first return air regulating valve, and an opening of a second return air regulating valve are controlled according to the current supply air temperature, the current dew point temperature, the target temperature, and the target dew point temperature, so that the current supply air temperature and the current supply air humidity correspondingly reach the target temperature and the target humidity, and the method comprises the steps of:
if the current air supply temperature is higher than the target temperature and the current dew point temperature is higher than the target dew point temperature, controlling the operation frequency of the compressor to be increased, and controlling the opening of the electronic expansion valve to be reduced so as to cool and dehumidify;
if the current air supply temperature is higher than the target temperature and the current dew point temperature is lower than the target dew point temperature, controlling the operation frequency of the compressor to be increased, controlling the opening of the electronic expansion valve to be reduced, and controlling the first humidifying device and the second humidifying device to be opened so as to cool and humidify;
if the current air supply temperature is smaller than the target temperature and the current dew point temperature is larger than the target dew point temperature, controlling the operation frequency of the compressor to be increased, and controlling the opening degrees of the electronic expansion valve, the first air inlet regulating valve and the second air inlet regulating valve to be reduced so as to perform heating dehumidification;
And if the current air supply temperature is smaller than the target temperature and the current dew point temperature is smaller than the target dew point temperature, controlling the operation frequency of the compressor to be reduced, controlling the opening of the electronic expansion valve to be increased, and controlling the first humidifying device and the second humidifying device to be opened so as to heat and humidify.
Further, in the process of controlling the operation frequency of the compressor to be increased and controlling the opening degrees of the electronic expansion valve, the first air inlet regulating valve and the second air inlet regulating valve to be reduced so as to perform heating and dehumidification, the method further comprises the following steps:
and controlling the first return air regulating valve and the second return air regulating valve to be opened until the current air supply temperature rises to the target temperature.
Further, after controlling the first return air regulating valve and the second return air regulating valve to be opened until the current supply air temperature rises to the target temperature, the method further comprises:
and adjusting the opening degrees of the first air inlet regulating valve and the second air inlet regulating valve and the opening degrees of the first return air regulating valve and the second return air regulating valve so as to maintain the current air supply temperature at the target temperature and maintain the current air outlet speed at the target air speed set by a user.
Further, the controlling the opening degree of the electronic expansion valve includes:
determining a target operating frequency of the compressor according to the current supply air temperature and the target temperature;
determining a target exhaust superheat degree according to a target operating frequency of the compressor;
and determining the opening of the electronic expansion valve according to the current exhaust superheat degree and the target exhaust superheat degree.
Further, the determining that the air conditioner is in the stable operation state includes:
if the air conditioner is not started for the first time, determining that the air conditioner is in the stable running state after being started;
if the air conditioner is started for the first time, acquiring an initial indoor temperature and an initial outdoor temperature corresponding to the initial indoor temperature, the initial outdoor temperature, a target temperature set by a user and a target wind speed, determining an initial target operating frequency of the compressor and initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve respectively, controlling the air conditioner to operate for a second preset time according to the initial target operating frequency and the initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve respectively, and determining that the air conditioner is in a stable operating state.
According to the control method of the air conditioner, provided by the embodiment of the invention, under the refrigeration working condition, the evaporation temperature and the dehumidification (or humidification) are regulated by means of measures such as regulating the operation frequency of the compressor, the opening degree of the electronic expansion valve, the opening degrees of the first air inlet regulating valve and the second air inlet regulating valve, the opening degrees of the first air return regulating valve and the second air return regulating valve, starting the humidifying device and the like, so that the independent control of the air outlet temperature and the air outlet humidity is realized, and the air outlet temperature and the air outlet humidity are set by a user, thereby meeting the requirements of different regions and users, and having the advantages of simple system structure and higher energy efficiency.
In order to solve the above-mentioned problems, the present invention further provides a control device of an air conditioner, where the air conditioner includes: the indoor unit according to any one of the above embodiments, the apparatus includes:
the first determining module is used for determining that the air conditioner is in a stable running state;
the acquisition module is used for acquiring the current air supply temperature and the current air supply humidity of the first air supply opening and the second air supply opening at intervals of a first preset time;
the second determining module is used for determining the current dew point temperature according to the acquired current air supply temperature and current air supply humidity and determining the target dew point temperature according to the target temperature and the target humidity set by a user;
The control module is used for controlling one or more of the operation frequency of the compressor of the air conditioner, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve, the opening of the second air inlet regulating valve, the opening of the first air return regulating valve and the opening of the second air return regulating valve according to the current air supply temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current air supply temperature and the current air supply humidity correspondingly reach the target temperature and the target humidity.
According to the control device of the air conditioner, provided by the embodiment of the invention, under a refrigeration working condition, by means of measures such as adjusting the operating frequency of the compressor, the opening degree of the electronic expansion valve, the opening degree of the first air inlet regulating valve and the second air inlet regulating valve, the opening degree of the first air return regulating valve and the second air return regulating valve, starting the humidifying device and the like, the evaporating temperature and the dehumidifying amount (or the humidifying amount) are adjusted, and further, the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the air outlet humidity are set by a user, the requirements of different regions and users are met, and the control device has the advantages of simple system structure and higher energy efficiency.
In view of the above problems, the present invention also proposes an air conditioner comprising:
The indoor unit according to any one of the above embodiments;
an outdoor unit; and
and a controller for executing the control method of the air conditioner according to any one of the above embodiments.
According to the air conditioner disclosed by the embodiment of the invention, the indoor unit is small in size, small in occupied indoor area and wider in applicable installation place. Under refrigeration working conditions, by adjusting the operation frequency of the compressor, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve and the second air inlet regulating valve, the opening of the first air return regulating valve and the opening of the second air return regulating valve, starting a humidifying device and other measures, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the air outlet humidity are set by a user, the requirements of different regions and users are met, and the system has the advantages of simple structure and higher energy efficiency.
In view of the foregoing, the present invention further provides a computer-readable storage medium, where a control program of an air conditioner is stored, where the control program of the air conditioner, when executed by a processor, implements the control method of the air conditioner according to any one of the foregoing embodiments.
According to the computer readable storage medium, when a program stored on the computer readable storage medium for adjusting the position of a mobile terminal is executed by a processor, under a refrigeration working condition, by means of measures such as adjusting the operation frequency of a compressor, the opening degree of an electronic expansion valve, the opening degree of a first air inlet regulating valve and a second air inlet regulating valve, the opening degree of a first air return regulating valve and a second air return regulating valve, starting a humidifying device and the like, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further, the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the humidity are set by a user, the requirements of different regions and users are met, and the computer readable storage medium has the advantages of simple system structure and higher energy efficiency.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of an air conditioner indoor unit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the first heat exchanger and the second heat exchanger according to one embodiment of the present invention;
fig. 3 is a schematic view illustrating a structure of a rear view of an indoor unit casing according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart of a control method of an air conditioner according to another embodiment of the present invention;
fig. 6 is a schematic structural view of a control device of an air conditioner according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, by way of example with reference to the accompanying drawings.
An indoor unit, a control method of an air conditioner, an apparatus, an air conditioner, and a storage medium according to embodiments of the present invention are described below with reference to fig. 1 to 6.
Fig. 1 is a schematic view illustrating a structure of an indoor unit of an air conditioner according to an embodiment of the present invention. As shown in fig. 1, an air conditioner indoor unit includes: a case 1; a first heat exchanger 2 and a second heat exchanger 3 (shown in fig. 2) which are symmetrically arranged in the box body 1 from left to right; a first air supply port 4 and a second air supply port 5 which are positioned at the front side of the box body 1 and respectively correspond to the first heat exchanger 2 and the second heat exchanger 3; the first air inlet 6 and the second air inlet 7 are positioned at the lower side of the box body 1 and respectively correspond to the first heat exchanger 2 and the second heat exchanger 3; the first air inlet 6 and the second air inlet 7 are respectively and correspondingly provided with a first air inlet regulating valve (not shown in the figure) and a second air inlet regulating valve (not shown in the figure), and the air quantity flowing through the first heat exchanger 2 and the second heat exchanger 3 is correspondingly regulated by controlling the first air inlet regulating valve and the second air inlet regulating valve. Specifically, the first air inlet 6 and the second air inlet 7 are both lower air inlet type, and are convenient to install in cooperation with a suspended ceiling.
Specifically, compared with the air duct machine with the same refrigerating capacity, the air conditioner box body 1 of the embodiment of the invention has the advantages that the size of the box body 1 in the depth direction is reduced by 25% compared with the traditional air duct machine, the occupied indoor area is small, and the air conditioner box body is not limited by installation places.
In one embodiment of the present invention, as shown in fig. 2, the first heat exchanger 2 and the second heat exchanger 3 are disposed to be inclined with respect to the horizontal direction by an angle of θ, for example, to facilitate drainage of condensed water.
In one embodiment of the present invention, the inclination angle of the first heat exchanger 2 and the second heat exchanger 3 is 35 ° to 45 °.
In one embodiment of the present invention, as shown in fig. 3, the rear view of the casing 1, the indoor unit further includes: the first air return port 8 and the second air return port 9 are positioned at the rear side of the box body 1 and respectively correspond to the first heat exchanger 2 and the second heat exchanger 3 which are symmetrically arranged left and right; the first air return opening 8 and the second air return opening 9 are respectively and correspondingly provided with a first air return adjusting valve (not shown in the figure) and a second air return adjusting valve (not shown in the figure), and the air supply quantity flowing through the first air supply opening 4 and the second air supply opening 5 is correspondingly adjusted by controlling the first air return adjusting valve and the second air return adjusting valve, so that the air supply quantity is ensured to be stable. Specifically, the primary return air is indoor air, and is not subjected to indoor heat and wet load in the whole air conditioning process, and is only used for being mixed with low-temperature dry air treated by the first heat exchanger 2 and the second heat exchanger 3, so that the air outlet temperature is improved, and the body feeling of a user is improved.
In one embodiment of the present invention, the indoor unit further includes: the first humidifying device 10 and the second humidifying device 11 are respectively arranged at the lower edges of the first air supply opening 4 and the second air supply opening 5 and are used for humidifying air flowing through the first air supply opening 4 and the second air supply opening 5 correspondingly. Specifically, can utilize low temperature condensate water to carry out atomizing humidification to indoor air humidification realizes the humidity control of air outlet, avoids running for a long time because of the refrigeration mode, leads to the too dry problem in air conditioning room.
According to the indoor unit provided by the embodiment of the invention, the box body 1 is small in size, small in occupied indoor area and wider in applicable installation place. Under refrigeration working conditions, by adjusting the operation frequency of the compressor, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve and the second air inlet regulating valve, the opening of the first air return regulating valve and the opening of the second air return regulating valve, starting a humidifying device and other measures, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the air outlet humidity are set by a user, the requirements of different regions and users are met, and the system has the advantages of simple structure and higher energy efficiency.
Further embodiments of the present invention also disclose a control method of an air conditioner, and fig. 4 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 4, a control method of an air conditioner, the air conditioner including the indoor unit according to any one of the above embodiments, includes the steps of:
and step S1, determining that the air conditioner is in a stable running state.
Specifically, if the air conditioner is not started for the first time, determining that the air conditioner is in a stable running state after being started; if the air conditioner is started for the first time, after the air conditioner is started and stably operated for a period of time, for example, 3 minutes, the air conditioner is determined to be in a stable operation state.
Step S2, acquiring the current air supply temperature and the current air supply humidity of the first air supply opening 4 and the second air supply opening 5 at intervals of a first preset time.
In a specific embodiment, the current supply air temperature and the current supply air humidity of the first air outlet 4 and the second air outlet 5 may be obtained through a temperature sensor and a humidity sensor respectively provided at the first air outlet 4 and the second air outlet 5 of the air conditioner every a first preset time, for example, 30 s.
And S3, determining the current dew point temperature according to the acquired current air supply temperature and current air supply humidity, and determining the target dew point temperature according to the target temperature and the target humidity set by a user.
In a specific embodiment, the user may input the target temperature and the target humidity through the remote controller, or input the target temperature and the target humidity through the APP bound to the air conditioner, so as to determine the target dew point temperature according to the target temperature and the target humidity set by the user.
And S4, controlling one or more of the operation frequency of the compressor of the air conditioner, the opening degree of the electronic expansion valve, the opening degree of the first air inlet regulating valve, the opening degree of the second air inlet regulating valve, the opening degree of the first return air regulating valve and the opening degree of the second return air regulating valve according to the current air supply temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current air supply temperature and the current air supply humidity correspondingly reach the target temperature and the target humidity.
In one embodiment of the present invention, controlling one or more of an operation frequency of a compressor of an air conditioner, an opening degree of an electronic expansion valve, an opening degree of a first air intake adjusting valve, an opening degree of a second air intake adjusting valve, an opening degree of a first return air adjusting valve, and an opening degree of a second return air adjusting valve according to a current supply air temperature, a current dew point temperature, a target temperature, and a target dew point temperature so that the current supply air temperature and the current supply air humidity correspond to the target temperature and the target humidity, includes: if the current air supply temperature is higher than the target temperature and the current dew point temperature is higher than the target dew point temperature, controlling the operation frequency of the compressor to be increased, controlling the opening of the electronic expansion valve to be reduced, and reducing the evaporation temperature so as to reduce the temperature and dehumidify; if the current air supply temperature is higher than the target temperature and the current dew point temperature is lower than the target dew point temperature, controlling the operation frequency of the compressor to be increased, controlling the opening degree of the electronic expansion valve to be reduced, thereby reducing the evaporation temperature, controlling the first humidifying device and the second humidifying device to be opened, and utilizing low-temperature condensate atomization to perform air-out humidification so as to perform cooling and humidification; if the current air supply temperature is smaller than the target temperature and the current dew point temperature is larger than the target dew point temperature, controlling the operation frequency of the compressor to be increased, controlling the opening of the electronic expansion valve, the opening of the first air inlet regulating valve and the opening of the second air inlet regulating valve to be reduced, thereby reducing the evaporation temperature, reducing the air quantity flowing through the first heat exchanger 2 and the second heat exchanger 3, namely reducing the air flow rate flowing through the first heat exchanger 2 and the second heat exchanger 3, and increasing the dehumidifying quantity of the air quantity per unit volume to perform heating and dehumidifying; if the current air supply temperature is less than the target temperature and the current dew point temperature is less than the target dew point temperature, the operation frequency of the compressor is controlled to be reduced, the opening of the electronic expansion valve is controlled to be increased, the evaporation temperature is improved, the first humidifying device and the second humidifying device are controlled to be opened, and the low-temperature condensate atomization is utilized for air-out humidification so as to heat and humidify.
In one embodiment of the present invention, in the process of controlling the operation frequency of the compressor to increase and controlling the opening degrees of the electronic expansion valve, the first air inlet regulating valve and the second air inlet regulating valve to decrease so as to perform temperature rising and dehumidification, the method further comprises: and the first return air regulating valve and the second return air regulating valve are controlled to be opened until the current supply air temperature rises to the target temperature, namely, primary return air is mixed with low-temperature dry air cooled and dehumidified by the first heat exchanger 2 and the second heat exchanger 3, so that the outlet air temperature rises to the target temperature, and the body feeling of a user is improved.
In one embodiment of the present invention, after controlling the first return air adjusting valve and the second return air adjusting valve to be opened until the current supply air temperature increases to the target temperature, the method further comprises: and the opening degree of the first air inlet regulating valve and the second air inlet regulating valve and the opening degree of the first air return regulating valve and the opening degree of the second air return regulating valve are regulated so as to ensure that the current air supply temperature is maintained at the target temperature set by a user, and the current air outlet speed is maintained at the target air speed set by the user, thereby ensuring the stability and comfort of indoor air circulation.
In one embodiment of the present invention, controlling the opening degree of the electronic expansion valve includes: determining a target operating frequency of the compressor according to the current air supply temperature and the target temperature; determining a target exhaust superheat degree according to a target operating frequency of the compressor; and determining the opening of the electronic expansion valve according to the current exhaust superheat degree and the target exhaust superheat degree.
Specifically, the opening of the electronic expansion valve is controlled by the superheat degree of the exhaust gas, and the process calculation formula is as follows:
(1) The target frequency of the compressor is: fre_ aim =kf (T act -T obj ) +Bf, wherein Kf is the slope of the compressor target frequency variation curve with temperature difference, and Bf is the intercept of the compressor target frequency variation curve with temperature difference;
(2) The target exhaust superheat degree is: DSH (DSH) obj =kd×fre_ aim +bd, where KD is the slope of the target discharge superheat curve with the target frequency of the compressor, and BD is the intercept of the target discharge superheat curve with the target frequency of the compressor;
(3) Electronic expansion valve opening degree variation value Δeev=kv (Δdsh) (n) -ΔDSH (n-1) ) +Bv, where DeltaDSH (n) ＝DSH act -DSH obj ，ΔDSH (n) Is the change value of the superheat degree of the exhaust at the moment n, DSH act Degree of superheat of exhaust gas at time n, DSH obj For the target exhaust superheat degree at time n, ΔDSH (n-1) Delta DSH for last moment (n) KV is the slope of the relation curve of the opening change value of the electronic expansion valve and the change value of the exhaust superheat degree, and Bv is the intercept of the relation curve of the opening change value of the electronic expansion valve and the change value of the exhaust superheat degree.
In one embodiment of the present invention, determining that an air conditioner is in a steady operation state includes: if the air conditioner is not started for the first time, determining that the air conditioner is in a stable running state after being started; if the air conditioner is started for the first time, acquiring an initial indoor temperature and an initial outdoor temperature corresponding to the first time, determining an initial target operating frequency of the compressor and initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve according to the initial indoor temperature, the initial outdoor temperature, the target temperature set by a user and the target air speed, controlling the air conditioner to operate for a second preset time according to the initial target operating frequency and the initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve, and determining that the air conditioner is in the stable operating state.
As a specific embodiment, a control method of an air conditioner in the specific embodiment is exemplarily described below with reference to fig. 5, so as to better understand the control method of an air conditioner in the embodiment of the present invention.
In a specific embodiment, as shown in FIG. 5, the user sets the target wind speed to, for example, V obj The target temperature being, for example, T obj The target moisture content is, for example, d obj I.e. the target humidity is d obj And according to the target temperature T obj Target moisture content d obj Calculating the target dew point temperature, e.g. T L，obj 。
In a specific embodiment, if the air conditioner is turned on for the first time, the temperature sensor is used to measure the indoor temperature, such as T N The outdoor temperature being T, for example W And based on the indoor temperature T N Outdoor temperature T W Target temperature T obj Target wind speed V obj And calculating initial target frequency of the compressor and initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve respectively, controlling the air conditioner to operate for a second preset time, for example, 3 minutes, according to the initial target operating frequency and the initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve respectively, and determining that the air conditioner is in the stable operating state.
In a specific embodiment, if the air conditioner is not started for the first time, the temperature sensor and the humidity sensor are used to detect the supply air temperature T act And supply air humidity d act And according to the supply air temperature T act And supply air humidity d act Calculating the dew point temperature T of the air supply L，act Then according to the target temperature T obj Temperature T of air supply act Target dew point temperature T L，obj Dew point temperature T of air supply L，act An operation mode of the air conditioner is determined. If T act ＞T obj And T is L，act ＞T L，obj The operation frequency of the compressor is controlled to be improved, and the opening of the electronic expansion valve is controlled to be reduced so as to cool and dehumidify; if T act ＞T obj And T is L，act ＜T L，obj Controlling the operation frequency of the compressor to be improved, controlling the opening of the electronic expansion valve to be reduced, and starting the humidifying device to cool and humidify; if T act ＜T obj And T is L，act ＞T L，obj The operation frequency of the compressor is controlled to be improved, the opening degrees of the electronic expansion valve, the first air inlet regulating valve and the second air inlet regulating valve are controlled to be reduced, so that the air quantity flowing through the first heat exchanger 2 and the second heat exchanger 3 is reduced, namely the air flow rate flowing through the first heat exchanger 2 and the second heat exchanger 3 is reduced, and the dehumidification quantity of unit volume flow is increased, so that the temperature rising dehumidification is carried out; simultaneously, a return air valve is opened to mix the primary return air with low-temperature dry air cooled and dehumidified by the first heat exchanger 2 and the second heat exchanger 3, so that the temperature of the outlet air is increased to the target temperature T obj Thereby improving the user's sense of body. In the process, the opening degrees of the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve are regulated simultaneously, so that the air outlet speed and the air outlet temperature are kept at the target air speed V set by a user obj And a target temperature T obj Ensuring the stable and comfortable indoor air circulation; . If T act ＜T obj And T is L，act ＜T L，obj The operation frequency of the compressor is controlled to be reduced, the opening degree of the electronic expansion valve is controlled to be increased, so that the evaporation temperature is increased, the first humidifying device and the second humidifying device are controlled to be opened, and low-temperature condensate atomization is utilized for air outletHumidification is performed to perform temperature-raising humidification.
According to the control method of the air conditioner, provided by the embodiment of the invention, under the refrigeration working condition, the evaporation temperature and the dehumidification (or humidification) are regulated by means of measures such as regulating the operation frequency of the compressor, the opening degree of the electronic expansion valve, the opening degrees of the first air inlet regulating valve and the second air inlet regulating valve, the opening degrees of the first air return regulating valve and the second air return regulating valve, starting the humidifying device and the like, so that the independent control of the air outlet temperature and the air outlet humidity is realized, and the air outlet temperature and the air outlet humidity are set by a user, thereby meeting the requirements of different regions and users, and having the advantages of simple system structure and higher energy efficiency.
Further embodiments of the present invention also disclose a control device of an air conditioner, and fig. 6 is a schematic structural diagram of the control device of the air conditioner according to an embodiment of the present invention. As shown in fig. 6, a control device of an air conditioner, the air conditioner comprising: an indoor unit according to any one of the above embodiments, the apparatus 100 includes: the device comprises a first determining module 110, an acquiring module 120, a second determining module 130 and a control module 140.
The first determining module 110 is configured to determine that the air conditioner is in a stable operation state; the obtaining module 120 is configured to obtain a current air supply temperature and a current air supply humidity of the first air supply port 4 and the second air supply port 5 at intervals of a first preset time; the second determining module 130 is configured to determine a current dew point temperature according to the obtained current air supply temperature and current air supply humidity, and determine a target dew point temperature according to a target temperature and a target humidity set by a user; the control module 140 controls one or more of the operation frequency of the compressor of the air conditioner, the opening of the electronic expansion valve, the opening of the first air intake regulating valve, the opening of the second air intake regulating valve, the opening of the first return air regulating valve and the opening of the second return air regulating valve according to the current supply air temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current supply air temperature and the current supply air humidity correspondingly reach the target temperature and the target humidity.
In one embodiment of the present invention, the control module 140 controls one or more of an operation frequency of a compressor of the air conditioner, an opening of the electronic expansion valve, an opening of the first air intake adjusting valve, an opening of the second air intake adjusting valve, an opening of the first return air adjusting valve, and an opening of the second return air adjusting valve according to the current supply air temperature, the current dew point temperature, the target temperature, and the target dew point temperature such that the current supply air temperature and the current supply air humidity correspond to the target temperature and the target humidity, including: if the current air supply temperature is higher than the target temperature and the current dew point temperature is higher than the target dew point temperature, controlling the operation frequency of the compressor to be increased, and controlling the opening of the electronic expansion valve to be reduced so as to cool and dehumidify; if the current air supply temperature is higher than the target temperature and the current dew point temperature is lower than the target dew point temperature, controlling the operation frequency of the compressor to be increased, controlling the opening degree of the electronic expansion valve to be reduced, and controlling the first humidifying device and the second humidifying device to be opened so as to cool and humidify; if the current air supply temperature is smaller than the target temperature and the current dew point temperature is larger than the target dew point temperature, controlling the operation frequency of the compressor to be increased, and controlling the opening of the electronic expansion valve, the opening of the first air inlet regulating valve and the opening of the second air inlet regulating valve to be reduced so as to perform heating dehumidification; if the current air supply temperature is smaller than the target temperature and the current dew point temperature is smaller than the target dew point temperature, controlling the operation frequency of the compressor to be reduced, controlling the opening degree of the electronic expansion valve to be increased, and controlling the first humidifying device and the second humidifying device to be opened so as to heat and humidify.
In one embodiment of the present invention, the control module 140 further includes, in the process of controlling the operation frequency of the compressor to increase and controlling the opening degrees of the electronic expansion valve, the first air intake regulating valve and the second air intake regulating valve to decrease, heating and dehumidifying: and controlling the first return air regulating valve and the second return air regulating valve to be opened until the current air supply temperature rises to the target temperature.
In one embodiment of the present invention, the control module 140 further includes, after controlling the first return air adjusting valve and the second return air adjusting valve to be opened until the current supply air temperature increases to the target temperature: and adjusting the opening degrees of the first air inlet regulating valve and the second air inlet regulating valve and the opening degrees of the first air return regulating valve and the second air return regulating valve so as to maintain the current air supply temperature at the target temperature set by the user and maintain the current air outlet speed at the target air speed set by the user.
In one embodiment of the present invention, the controlling the opening degree of the electronic expansion valve by the control module 140 includes: determining a target operating frequency of the compressor according to the current air supply temperature and the target temperature; determining a target exhaust superheat degree according to a target operating frequency of the compressor; and determining the opening of the electronic expansion valve according to the current exhaust superheat degree and the target exhaust superheat degree.
In one embodiment of the present invention, the first determining module 110 determines that the air conditioner is in a steady operation state, including: if the air conditioner is not started for the first time, determining that the air conditioner is in a stable running state after being started; if the air conditioner is started for the first time, acquiring an initial indoor temperature and an initial outdoor temperature corresponding to the first time, determining an initial target operating frequency of the compressor and initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve according to the initial indoor temperature, the initial outdoor temperature, the target temperature set by a user and the target air speed, controlling the air conditioner to operate for a second preset time according to the initial target operating frequency and the initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve, and determining that the air conditioner is in the stable operating state.
It should be noted that, when the control device 100 of the air conditioner according to the embodiment of the present invention performs control of the air conditioner, a specific implementation manner of the control device is similar to that of the control method of the air conditioner according to the embodiment of the present invention, and specific please refer to the description of the method section, and in order to reduce redundancy, a detailed description is omitted here.
According to the control device 100 of the air conditioner in the embodiment of the invention, under the refrigeration working condition, by adjusting the operation frequency of the compressor, the opening degree of the electronic expansion valve, the opening degree of the first air inlet regulating valve and the second air inlet regulating valve, the opening degree of the first air return regulating valve and the second air return regulating valve, starting the humidifying device and other measures, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the air outlet humidity are set by a user, the requirements of different regions and users are met, and the control device has the advantages of simple system structure and higher energy efficiency.
The further embodiment of the invention also discloses an air conditioner.
In some embodiments, the air conditioner includes: the indoor unit according to any one of the above embodiments; an outdoor unit; and a controller for executing the control method of the air conditioner according to any one of the above embodiments.
In some embodiments, the air conditioner includes: the control device 100 of an air conditioner according to any one of the above embodiments of the present invention.
According to the air conditioner disclosed by the embodiment of the invention, the indoor unit is small in size, small in occupied indoor area and wider in applicable installation place. Under refrigeration working conditions, by adjusting the operation frequency of the compressor, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve and the second air inlet regulating valve, the opening of the first air return regulating valve and the opening of the second air return regulating valve, starting a humidifying device and other measures, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the air outlet humidity are set by a user, the requirements of different regions and users are met, and the system has the advantages of simple structure and higher energy efficiency.
Further embodiments of the present invention also disclose a computer readable storage medium, where a control program of an air conditioner is stored, where the control program of the air conditioner, when executed by a processor, implements the control method of the air conditioner according to any of the foregoing embodiments.
According to the computer readable storage medium, when a program stored on the computer readable storage medium for adjusting the position of a mobile terminal is executed by a processor, under a refrigeration working condition, by means of measures such as adjusting the operation frequency of a compressor, the opening degree of an electronic expansion valve, the opening degree of a first air inlet regulating valve and a second air inlet regulating valve, the opening degree of a first air return regulating valve and a second air return regulating valve, starting a humidifying device and the like, the evaporation temperature and the dehumidification (or humidification) are adjusted, and further, the independent control of the air outlet temperature and the air outlet humidity is realized, so that the air outlet temperature and the humidity are set by a user, the requirements of different regions and users are met, and the computer readable storage medium has the advantages of simple system structure and higher energy efficiency.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (13)
1. An indoor unit, comprising:
a case;
the first heat exchanger and the second heat exchanger are symmetrically arranged in the box body;
the first air supply port and the second air supply port are positioned at the front side of the box body and correspond to the first heat exchanger and the second heat exchanger respectively;
the first air inlet and the second air inlet are positioned at the lower side of the box body and correspond to the first heat exchanger and the second heat exchanger respectively;
the first air inlet and the second air inlet are respectively provided with a first air inlet regulating valve and a second air inlet regulating valve correspondingly, and the air quantity flowing through the first heat exchanger and the second heat exchanger is correspondingly regulated by controlling the first air inlet regulating valve and the second air inlet regulating valve;
the first air return port and the second air return port are positioned at the rear side of the box body and correspond to the first heat exchanger and the second heat exchanger in bilateral symmetry respectively;
The first air return opening and the second air return opening are respectively provided with a first air return regulating valve and a second air return regulating valve correspondingly, and the air quantity flowing through the first air supply opening and the second air supply opening is correspondingly regulated by controlling the first air return regulating valve and the second air return regulating valve;
the indoor unit further comprises the following control method:
determining that the air conditioner is in a stable running state;
acquiring the current air supply temperature and the current air supply humidity of the first air supply opening and the second air supply opening at intervals of a first preset time;
determining a current dew point temperature according to the acquired current air supply temperature and current air supply humidity, and determining a target dew point temperature according to a target temperature and target humidity set by a user;
and controlling one or more of the operating frequency of the compressor of the air conditioner, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve, the opening of the second air inlet regulating valve, the opening of the first return air regulating valve and the opening of the second return air regulating valve according to the current air supply temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current air supply temperature and the current air supply humidity correspondingly reach the target temperature and the target humidity.
2. The indoor unit of claim 1, wherein the first heat exchanger and the second heat exchanger are disposed obliquely with respect to a horizontal direction.
3. The indoor unit of claim 2, wherein the first heat exchanger and the second heat exchanger are inclined at an angle of 35 ° to 45 °.
4. An indoor unit according to any one of claims 1-3, further comprising:
the first humidifying device and the second humidifying device are respectively and correspondingly arranged at the lower edges of the first air supply opening and the second air supply opening and are used for humidifying the air flowing through the first air supply opening and the second air supply opening.
5. A control method of an air conditioner including the indoor unit according to any one of claims 1 to 4, characterized by comprising the steps of:
determining that the air conditioner is in a stable running state;
acquiring the current air supply temperature and the current air supply humidity of the first air supply opening and the second air supply opening at intervals of a first preset time;
determining a current dew point temperature according to the acquired current air supply temperature and current air supply humidity, and determining a target dew point temperature according to a target temperature and target humidity set by a user;
And controlling one or more of the operating frequency of the compressor of the air conditioner, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve, the opening of the second air inlet regulating valve, the opening of the first return air regulating valve and the opening of the second return air regulating valve according to the current air supply temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current air supply temperature and the current air supply humidity correspondingly reach the target temperature and the target humidity.
6. The method for controlling an air conditioner according to claim 5, wherein,
controlling one or more of an operating frequency of a compressor of the air conditioner, an opening of an electronic expansion valve, an opening of a first air intake regulating valve, an opening of a second air intake regulating valve, an opening of a first return air regulating valve and an opening of a second return air regulating valve according to the current supply air temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current supply air temperature and the current supply air humidity correspondingly reach the target temperature and the target humidity, including:
if the current air supply temperature is higher than the target temperature and the current dew point temperature is higher than the target dew point temperature, controlling the operation frequency of the compressor to be increased, and controlling the opening of the electronic expansion valve to be reduced so as to cool and dehumidify;
If the current air supply temperature is higher than the target temperature and the current dew point temperature is lower than the target dew point temperature, controlling the operation frequency of the compressor to be increased, controlling the opening of the electronic expansion valve to be reduced, and controlling the first humidifying device and the second humidifying device to be opened so as to cool and humidify;
if the current air supply temperature is smaller than the target temperature and the current dew point temperature is larger than the target dew point temperature, controlling the operation frequency of the compressor to be increased, and controlling the opening degrees of the electronic expansion valve, the first air inlet regulating valve and the second air inlet regulating valve to be reduced so as to perform heating dehumidification;
and if the current air supply temperature is smaller than the target temperature and the current dew point temperature is smaller than the target dew point temperature, controlling the operation frequency of the compressor to be reduced, controlling the opening of the electronic expansion valve to be increased, and controlling the first humidifying device and the second humidifying device to be opened so as to heat and humidify.
7. The method of controlling an air conditioner according to claim 6, wherein in controlling the operation frequency of the compressor to be increased and controlling the opening degrees of the electronic expansion valve, the first air intake regulating valve and the second air intake regulating valve to be decreased to perform the temperature-increasing dehumidification, further comprising:
And controlling the first return air regulating valve and the second return air regulating valve to be opened until the current air supply temperature rises to the target temperature.
8. The control method of an air conditioner as set forth in claim 7, further comprising, after controlling the first return air regulating valve and the second return air regulating valve to be opened until the current supply air temperature increases to the target temperature:
and adjusting the opening degrees of the first air inlet regulating valve and the second air inlet regulating valve and the opening degrees of the first return air regulating valve and the second return air regulating valve so as to maintain the current air supply temperature at the target temperature and maintain the current air outlet speed at the target air speed set by a user.
9. The control method of an air conditioner according to any one of claims 6 to 8, wherein controlling the opening degree of the electronic expansion valve includes:
determining a target operating frequency of the compressor according to the current supply air temperature and the target temperature;
determining a target exhaust superheat degree according to a target operating frequency of the compressor;
and determining the opening of the electronic expansion valve according to the current exhaust superheat degree and the target exhaust superheat degree.
10. The method of controlling an air conditioner according to claim 6, wherein the determining that the air conditioner is in a steady operation state comprises:
If the air conditioner is not started for the first time, determining that the air conditioner is in the stable running state after being started;
if the air conditioner is started for the first time, acquiring an initial indoor temperature and an initial outdoor temperature corresponding to the initial indoor temperature, the initial outdoor temperature, a target temperature set by a user and a target wind speed, determining an initial target operating frequency of the compressor and initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve respectively, controlling the air conditioner to operate for a second preset time according to the initial target operating frequency and the initial target opening degrees corresponding to the first air inlet regulating valve, the second air inlet regulating valve, the first air return regulating valve and the second air return regulating valve respectively, and determining that the air conditioner is in a stable operating state.
11. A control device of an air conditioner, the air conditioner comprising: the indoor unit of any one of claims 1-4, the apparatus comprising:
the first determining module is used for determining that the air conditioner is in a stable running state;
the acquisition module is used for acquiring the current air supply temperature and the current air supply humidity of the first air supply opening and the second air supply opening at intervals of a first preset time;
The second determining module is used for determining the current dew point temperature according to the acquired current air supply temperature and current air supply humidity and determining the target dew point temperature according to the target temperature and the target humidity set by a user;
the control module is used for controlling one or more of the operation frequency of the compressor of the air conditioner, the opening of the electronic expansion valve, the opening of the first air inlet regulating valve, the opening of the second air inlet regulating valve, the opening of the first air return regulating valve and the opening of the second air return regulating valve according to the current air supply temperature, the current dew point temperature, the target temperature and the target dew point temperature so that the current air supply temperature and the current air supply humidity correspondingly reach the target temperature and the target humidity.
12. An air conditioner, comprising:
the indoor unit according to any one of claims 1 to 4;
an outdoor unit; and
a controller for performing the control method of an air conditioner according to any one of claims 6 to 10.
13. A computer-readable storage medium, wherein a control program of an air conditioner is stored on the computer-readable storage medium, which when executed by a processor, implements the control method of an air conditioner according to any one of claims 6 to 10.
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| JP3323984B2 (en) * | 1997-04-14 | 2002-09-09 | オリオン機械株式会社 | Constant temperature and constant humidity air supply device |
| CN101149168B (en) * | 2006-09-21 | 2010-05-26 | 海尔集团公司 | Temperature-fixing dehumidifying air conditioner control method |
| CN103512155B (en) * | 2013-09-30 | 2016-06-08 | 美的集团股份有限公司 | A kind of air conditioning control method and Controlling System |
| CN204665472U (en) * | 2015-05-18 | 2015-09-23 | 广东美的制冷设备有限公司 | A kind of air-cooled ducted air conditioner |
| CN108679719B (en) * | 2018-06-01 | 2020-05-22 | 北京晶海科技有限公司 | Control system and control method of small-temperature-difference air supply air conditioner indoor unit |
| CN212869979U (en) * | 2020-06-30 | 2021-04-02 | 海信（山东）空调有限公司 | Indoor unit of air duct machine |
| CN213395599U (en) * | 2020-08-31 | 2021-06-08 | 海信（山东）空调有限公司 | Indoor air conditioner |
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Address after: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant after: Hisense Air Conditioning Co.,Ltd. Address before: 266100 No. 151, Zhuzhou Road, Laoshan District, Shandong, Qingdao Applicant before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. |
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