Disclosure of Invention
The embodiment of the invention provides a method and a device for controlling an air conditioner and the air conditioner, and provides a more refined method for controlling the frequency of an air conditioner compressor and the rotating speed of a fan of the air conditioner, so as to improve the effect of temperature and humidity double control and improve the user experience. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of embodiments of the present invention, there is provided a method for controlling an air conditioner, including: and under the air-conditioning refrigeration mode, judging whether the indoor temperature t and the indoor humidity RH meet the conditions, if so, controlling the working frequency F of the compressor according to the temperature Tpn of the indoor coil and the indoor humidity RH, and adjusting the rotating speed R of the indoor fan according to the working frequency F of the compressor.
Optionally, controlling the operating frequency F of the compressor as a function of the temperature Tpn of the indoor coil and said indoor humidity RH comprises: calculating a first candidate working frequency of the compressor according to the temperature Tpn of the indoor coil; calculating a second candidate working frequency of the compressor according to the indoor humidity RH; and taking the smaller value of the first candidate working frequency and the second candidate working frequency as the working frequency F of the compressor.
Optionally, the operating frequency F of the compressor is calculated according to the temperature Tpn of the indoor coil, the temperature difference PT of the target temperature Tpm of the indoor coil and the temperature change DT of the indoor coil.
Alternatively, F — T _ Kp × PT + T _ Ki × DT; wherein PT is Tpn-Tpm, DT is Tpn-Tpn 1; tpn1 is the indoor coil temperature collected in the previous time; t _ Kp and T _ Ki are weighting coefficients, respectively.
Optionally, T _ Ki is selected in relation to the system configuration and the ambient temperature, and T _ Kp is selected in relation to the system configuration and the ambient temperature. The value range of T _ Ki is 1-10, and the value range of T _ Kp is 1-8. Preferably, T _ Ki ═ 3, 4, 5, 6, or 7; t _ Kp is 3, 4, 5, 6 or 7.
Alternatively, the operating frequency F of the compressor is calculated and adjusted according to the humidity difference Δ RH between the indoor humidity RH and the Target humidity RH _ Target, and the change Δ RH' of the indoor humidity.
Optionally, the preferred value of Target humidity RH Target is 52%.
Alternatively, F ═ RH _ Ki × Δ RH' + RH _ Kp × Δ RH; wherein Δ RH ═ RH-RH _ Target, Δ RH ═ RH-RH 1; RH1 is the indoor humidity acquired at the previous time, and RH _ Ki and RH _ Kp are respectively set weighting coefficients.
Optionally, RH _ Ki is selected in relation to the system configuration and the ambient temperature, and RH _ Kp is selected in relation to the system configuration and the ambient temperature. The range of RH _ Ki is 1-10, and the range of RH _ Kp is 1-8. Preferably, RH _ Ki ═ 2, 3, 4, 5, 6, or 7; RH _ Kp ═ 2, 3, 4, 5, 6, or 7.
Optionally, when the calculated operating frequency F is greater than a set upper limit value, setting the operating frequency F of the compressor to the upper limit value; and when the calculated working frequency F is less than the set lower limit value, setting the working frequency F of the compressor as the lower limit value.
Optionally, adjusting the rotation speed R of the indoor fan according to the working frequency F of the compressor includes: the higher the frequency of the compressor, the higher the speed R of the indoor fan.
Optionally, a condition is satisfied when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than a second set temperature difference Δ T2 and the indoor humidity RH is outside a target humidity range (RH1, RH 2); wherein the second set temperature difference Δ T2 is greater than zero.
Optionally, the target humidity range (RH1, RH2) is associated with the set temperature T.
Optionally, when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than a second set temperature difference Δ T2 and the indoor humidity RH is within a target humidity range (RH1, RH2), the rotating speed R of the indoor fan and the operating frequency F of the compressor are kept unchanged.
Optionally, when the temperature difference Δ T between the indoor temperature T and the set temperature T is greater than or equal to the second set temperature difference Δ T2 and less than the first set temperature difference Δ T1, the operating frequency F of the compressor is adjusted to a set frequency F1.
Optionally, the set frequency f1 is 70% of the maximum compressor frequency.
Optionally, when the temperature difference Δ T between the indoor temperature T and the set temperature T is greater than or equal to the first set temperature difference Δ T1, the operating frequency F of the compressor and/or the rotating speed R of the indoor fan is increased to reduce the indoor temperature.
According to a second aspect of embodiments of the present invention, there is provided an apparatus for controlling an air conditioner, including a first temperature sensor for acquiring an indoor temperature t and a humidity sensor for acquiring an indoor humidity RH, and a Micro Controller Unit (MCU) including: the judgment unit is used for judging whether the conditions are met or not according to the indoor temperature t acquired by the first temperature sensor and the indoor humidity RH acquired by the humidity sensor in the refrigeration mode; and the adjusting unit is used for controlling the working frequency F of the compressor according to the temperature Tpn of the indoor coil pipe and the indoor humidity RH and adjusting the rotating speed R of the indoor fan according to the working frequency F of the compressor when the judging unit judges that the conditions are met.
Optionally, the MCU further comprises: the calculating unit is used for calculating a first candidate working frequency of the compressor according to the temperature Tpn of the indoor coil pipe; calculating a second candidate working frequency of the compressor according to the indoor humidity RH; taking the smaller of the first candidate working frequency and the second candidate working frequency as the working frequency F of the compressor;
optionally, the adjusting unit is configured to adjust the operating frequency F of the compressor according to the calculation result of the calculating unit.
Optionally, the operating frequency F of the compressor is calculated according to the temperature Tpn of the indoor coil, the temperature difference PT of the target temperature Tpm of the indoor coil and the temperature change DT of the indoor coil.
Alternatively, F — T _ Kp × PT + T _ Ki × DT; wherein PT is Tpn-Tpm, DT is Tpn-Tpn 1; tpn1 is the indoor coil temperature collected in the previous time; t _ Kp and T _ Ki are weighting coefficients, respectively.
Optionally, T _ Ki is selected in relation to the system configuration and the ambient temperature, and T _ Kp is selected in relation to the system configuration and the ambient temperature. The value range of T _ Ki is 1-10, and the value range of T _ Kp is 1-8. Preferably, T _ Ki ═ 3, 4, 5, 6, or 7; t _ Kp is 3, 4, 5, 6 or 7.
Alternatively, the operating frequency F of the compressor is calculated and adjusted according to the humidity difference Δ RH between the indoor humidity RH and the Target humidity RH _ Target, and the change Δ RH' of the indoor humidity.
Optionally, the preferred value of Target humidity RH Target is 52%.
Alternatively, F ═ RH _ Ki × Δ RH' + RH _ Kp × Δ RH; wherein Δ RH ═ RH-RH _ Target, Δ RH ═ RH-RH 1; RH1 is the indoor humidity acquired at the previous time, and RH _ Ki and RH _ Kp are respectively set weighting coefficients.
Optionally, RH _ Ki is selected in relation to the system configuration and the ambient temperature, and RH _ Kp is selected in relation to the system configuration and the ambient temperature. Wherein the value range of RH _ Ki is 1-10, and the value range of RH _ Kp is 1-8. Preferably, RH _ Ki ═ 2, 3, 4, 5, 6, or 7; RH _ Kp ═ 2, 3, 4, 5, 6, or 7.
Optionally, when the calculated operating frequency F is greater than a set upper limit value, setting the operating frequency F of the compressor to the upper limit value; and when the calculated working frequency F is less than the set lower limit value, setting the working frequency F of the compressor as the lower limit value.
Optionally, adjusting the rotation speed R of the indoor fan according to the working frequency F of the compressor includes: the higher the operating frequency F of the compressor, the higher the speed R of the indoor fan.
Optionally, a condition is satisfied when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than a second set temperature difference Δ T2 and the indoor humidity RH is outside a target humidity range (RH1, RH 2); wherein the second set temperature difference Δ T2 is greater than zero.
Optionally, the target humidity range (RH1, RH2) is associated with the set temperature T.
Optionally, when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than the second set temperature difference Δ T2 and the indoor humidity RH is within the target humidity range (RH1, RH2), the rotating speed R of the indoor fan and the operating frequency F of the compressor are kept unchanged.
Optionally, the adjusting unit is further configured to adjust the operating frequency F of the compressor to a set frequency F1 when the temperature difference Δ T between the indoor temperature T and the set temperature T is greater than or equal to a second set temperature difference Δ T2 and less than a first set temperature difference Δ T1.
Optionally, the set frequency f1 is 70% of the maximum compressor frequency.
Optionally, the adjusting unit is further configured to increase the operating frequency F of the compressor and/or the rotation speed R of the indoor fan to decrease the indoor temperature when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1.
According to a third aspect of embodiments of the present invention, there is provided an air conditioner comprising a compressor and an indoor fan, and further comprising any one of the above-described devices.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
the utility model provides a method of the fan rotational speed of the control air condition compressor's that becomes more meticulous frequency and air conditioner, under the refrigeration mode, gather real-time indoor temperature and indoor humidity, judge whether need adjust the running state of air conditioner, synthesize the temperature of indoor coil pipe and adjust the operating frequency of compressor, and then adjust the rotational speed of indoor fan to make indoor humidity and indoor temperature all be located the target range of settlement, can effectual control latent heat/apparent heat ratio, improve the effect of the two accuses of temperature and humidity, user experience has been improved simultaneously.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
The refrigerating capacity of the air conditioner is divided into sensible heat and latent heat, the sensible heat mainly affects the indoor temperature, the latent heat mainly affects the indoor humidity, and therefore both the sensible heat and the latent heat can affect the comfort level of people. When the temperature difference between rooms is large, the temperature of the rooms is expected to be reduced as soon as possible, and the larger the sensible heat ratio of the air conditioner is, the better the sensible heat ratio is. When the room temperature approaches or reaches the set temperature and the humidity is high, the latent heat ratio of the air conditioner is required to be larger as well as better when dehumidification is required. In this embodiment, the latent heat/sensible heat ratio can be effectively controlled by controlling the rotating speed of the indoor fan and the working frequency of the compressor, so that the effects of dehumidification and cooling are achieved. And through reasonable control latent heat/apparent heat ratio, can accomplish temperature and humidity two accuse, with indoor humidity and indoor temperature control in the target range of setting for.
Fig. 1 is a flowchart illustrating a method for controlling an air conditioner according to an exemplary embodiment. As shown in fig. 1, includes:
and step S101, acquiring indoor temperature t and indoor humidity RH in an air-conditioning refrigeration mode.
In this embodiment, the operation mode of the air conditioner can be adjusted by the remote controller of the air conditioner, the control panel on the indoor unit of the air conditioner, or the mobile terminal with remote control function for the air conditioner, such as: and the refrigeration mode of the air conditioner is controlled by clicking a refrigeration mode button on the remote controller.
The air conditioner is generally installed in the indoor space such as the living room, the bedroom, and the conference room, and therefore, the current temperature value of the indoor space such as the living room, the bedroom, or the conference room where the air conditioner is installed, which is obtained in step S101, is the real-time indoor temperature t obtained in the current process.
The air conditioner is provided with a first temperature sensor for detecting a current temperature value of an indoor environment. The sensing end of the first temperature sensor can be arranged on the air inlet of the air conditioner or the outer wall of the shell, so that the detected current temperature value can be the same as or close to the actual temperature of the indoor environment, and the accuracy of adjusting the working frequency of the compressor of the air conditioner and the rotating speed of the indoor fan according to the current indoor temperature value is improved.
The air conditioner is provided with a humidity sensor for detecting the current humidity value of the indoor environment, namely the real-time indoor humidity RH obtained in the current process. The sensing end of the humidity sensor can be arranged on the air inlet of the air conditioner or the outer wall of the shell, so that the current humidity value detected by the humidity sensor can be the same as or close to the actual humidity of the indoor environment, and the accuracy of adjusting the working frequency of the compressor of the air conditioner and the rotating speed of the indoor fan according to the current indoor humidity value is improved.
And S102, judging whether conditions are met or not according to the indoor temperature t and the indoor humidity RH, if so, controlling the working frequency F of the compressor according to the temperature Tpn of the indoor coil and the indoor humidity RH, and adjusting the rotating speed R of the indoor fan according to the working frequency F of the compressor so as to enable the indoor humidity and the indoor temperature to be within a set target range.
In this embodiment, a second temperature sensor is disposed on the surface of the coil of the indoor unit of the air conditioner or on the inner wall of the air conditioner casing close to the coil, and is used for detecting the indoor coil temperature Tpn of the air conditioner. So as to adjust the working frequency of the compressor of the air conditioner and the rotating speed of the indoor fan.
In some embodiments, the coil temperature of the indoor unit of the air conditioner can be calculated according to the working frequency of the compressor and the rotating speed of the indoor fan.
The air conditioning system presets judgment conditions aiming at the indoor temperature t and the indoor humidity RH, judges whether the conditions are met according to the indoor temperature t and the indoor humidity RH collected in the step S101, if so, controls the working frequency F of the compressor according to the temperature Tpn of the indoor coil and the indoor humidity RH, and adjusts the rotating speed R of the indoor fan according to the working frequency F of the compressor so as to enable the indoor humidity and the indoor temperature to be within the set target range. The working frequency F of the compressor is adjusted based on a plurality of parameters, and the adjustment accuracy is improved.
In this embodiment, a method of the fan rotational speed of the control air condition compressor's that becomes more meticulous frequency and air conditioner is provided, under the refrigeration mode, gather real-time indoor temperature and indoor humidity, judge whether need adjust the running state of air conditioner, synthesize the temperature of indoor coil pipe and indoor humidity and adjust the operating frequency of compressor, and then adjust the rotational speed of indoor fan, so that indoor humidity and indoor temperature all are located the target range who sets for, can effectual control latent heat/apparent heat ratio, improve the effect of warm and humid two accuse, user experience has been improved simultaneously.
In some embodiments, in step S102, it is determined whether the conditions are met according to the indoor temperature t and the indoor humidity RH, and if yes, the operating frequency F of the compressor is controlled according to the temperature Tpn of the indoor coil, and the rotating speed R of the indoor fan is adjusted according to the operating frequency F of the compressor, so that both the indoor humidity and the indoor temperature are within the set target range.
In some embodiments, in step S102, it is determined whether the conditions are satisfied according to the indoor temperature t and the indoor humidity RH, and if so, the operating frequency F of the compressor is controlled according to the indoor humidity RH, and the rotating speed R of the indoor fan is adjusted according to the operating frequency F of the compressor, so that both the indoor humidity and the indoor temperature are within the set target range.
In any of the foregoing embodiments, the indoor target temperature corresponds to a target humidity range (RH1, RH2), and here, a correspondence relationship between an indoor target temperature value and a target humidity range (RH1, RH2) may be stored in advance in the air conditioning system, that is, for each indoor target temperature, a plurality of human bodies may be tested, humidity that the corresponding human body feels most comfortable is obtained, humidity values corresponding to set sensible comfort levels of a plurality of human body collection samples in a set area of the indoor target temperature are obtained, and according to the humidity values, the target humidity range (RH1, RH2) corresponding to the indoor target temperature is determined, and the correspondence relationship is stored. For example: the indoor target temperature is 25 ℃, and at this time, the humidity is between 40% and 60% of the relative humidity, and most users feel the most comfortable, so that the target humidity range corresponding to the set temperature of 25 ℃ can be determined from the humidity of 40% to 60%, and the corresponding relationship between the indoor target temperature of 25 ° and the target humidity range of 40% to 60% is preserved.
Thus, the correspondence relationship between the indoor target temperature and the target humidity range pre-stored in the air conditioning system can be as shown in table 1:
TABLE 1
According to the correspondence shown in table 1, a current target humidity range (RH1, RH2) corresponding to the current indoor target temperature of the air conditioner is determined. As shown in table 1, the current set temperature is 28 °, and the current target humidity range is 30% to 60%.
The indoor temperature can be changed continuously in the air conditioner operation process, and the indoor temperature needs to be controlled within a certain range to meet the requirements of users. The indoor temperature target range depends on the indoor target temperature set by the user and is determined according to the indoor target temperature set by the user and the temperature fluctuation value preset by the system. The indoor target temperature is set by a user through an air conditioner remote controller, a control panel on an air conditioner indoor unit or a mobile terminal with a remote control function on the air conditioner. For example: the preset temperature fluctuation value of the system is 2 ℃, the indoor target temperature set by the user is 28 ℃, and the indoor temperature target range is (26 ℃, 30 ℃).
In some embodiments, the operating frequency F of the compressor is calculated and adjusted based on the temperature difference PT between the temperature Tpn of the indoor coil and the target temperature Tpm of the indoor coil, and the temperature change DT of the indoor coil. Specifically, the operating frequency F of the compressor is determined according to the following equation (1):
F=T_Ki×DT+T_Kp×PT; (1)
wherein PT is Tpn-Tpm, and DT is Tpn-Tpn 1; tpn1 is the indoor coil temperature collected in the previous time; t _ Kp and T _ Ki are weighting coefficients, respectively.
Wherein, T _ Ki is selected according to system configuration and external environment temperature, and T _ Kp is selected according to system configuration and external environment temperature. Such as: the higher the outside environment temperature is, the higher the value of T _ Ki or T _ Kp is. The external environment temperature is high, and the amplitude of each parameter needing to be adjusted to reach the target temperature or humidity is larger, so the weighting coefficient is larger. The outside ambient temperature includes an indoor ambient temperature or an outdoor ambient temperature. In the system configuration, T _ Ki and T _ Kp are selected in relation to the throttling device being a capillary tube or an expansion valve, the displacement capacity of the compressor or the size of the condenser and evaporator.
The value range of T _ Ki is 1-10, and the value range of T _ Kp is 1-8. Preferably, T _ Ki ═ 3, 4, 5, 6, or 7; t _ Kp is 3, 4, 5, 6 or 7. For example: when T _ Ki is 4, T _ Kp is 5, PT is 10, and DT is 2, according to formula (1): f-4 × 2+5 × 10-58 in Hz.
In some embodiments, the operating frequency F of the compressor is calculated and adjusted according to the humidity difference Δ RH between the indoor humidity RH and the Target humidity RH _ Target, and the change Δ RH' of the indoor humidity. Specifically, the operating frequency F of the compressor is determined according to the following equation (2):
F=RH_Ki×ΔRH’+RH_Kp×ΔRH; (2)
wherein Δ RH ═ RH-RH _ Target, Δ RH ═ RH-RH 1; RH1 is the indoor humidity acquired at the previous time, and RH _ Ki and RH _ Kp are respectively set weighting coefficients.
Wherein, the selection of RH _ Ki is related to the system configuration and the external environment temperature, and the selection of RH _ Kp is related to the system configuration and the external environment temperature. Such as: the higher the external environment temperature is, the larger the value of RH _ Ki or RH _ Kp is. The external environment temperature is high, and the amplitude of each parameter needing to be adjusted to reach the target temperature or humidity is larger, so the weighting coefficient is larger. The outside ambient temperature includes an indoor ambient temperature or an outdoor ambient temperature. In the system configuration, RH _ Ki and RH _ Kp are selected in relation to the size of the throttling device, which is a capillary or an expansion valve, the displacement capacity of the compressor or the size of the condenser and evaporator.
Wherein the value range of RH _ Ki is 1-10, and the value range of RH _ Kp is 1-8. Preferably, RH _ Ki ═ 2, 3, 4, 5, 6, or 7; RH _ Kp ═ 2, 3, 4, 5, 6, or 7. Preferably, the preferred value of the Target humidity RH Target is 52%. For example: when RH _ Ki is 2, RH _ Kp is 4, Δ RH is 15, Δ RH' is 4, according to formula (1): f2 × 4+4 × 15 68 in Hz.
In some embodiments, first, a first candidate operating frequency of the compressor is calculated from equation (1) according to the temperature Tpn of the indoor coil; secondly, calculating a second candidate working frequency of the compressor according to the indoor humidity RH by the formula (2); and finally, taking the smaller value of the first candidate working frequency and the second candidate working frequency as the working frequency F of the compressor. Different parameters are integrated to calculate the working frequency of the compressor, and the air conditioner adjusting accuracy is further improved.
In some embodiments, the operating frequency range of the compressor is preset. When the calculated working frequency F is greater than a set upper limit value, setting the working frequency F of the compressor as the upper limit value; and when the calculated working frequency F is less than the set lower limit value, setting the working frequency F of the compressor as the lower limit value. The running efficiency of the air conditioner is guaranteed, and the service life of the air conditioner compressor is prolonged. Preferably, the operating frequency range of the compressor is (30Hz, 70 Hz). Such as: when the preset working frequency range of the compressor is (30Hz, 70Hz), if the working frequency F of the compressor obtained according to the formula (1) or (2) is 25Hz, adjusting the working frequency of the compressor to be a set lower limit value of 30 Hz; and (3) if the working frequency F of the compressor obtained according to the formula (1) or (2) is 75Hz, adjusting the working frequency of the compressor to be 70Hz of the set upper limit value.
In any of the foregoing embodiments, after determining the operating frequency F of the compressor, adjusting the rotation speed R of the indoor fan according to the operating frequency F of the compressor includes: the higher the frequency of the compressor, the higher the speed R of the indoor fan.
The specific adjustment mode is as follows: an optional mode is that the rotation speed of the fan is obtained by table look-up through a preset corresponding relation between the working frequency F of the compressor and the rotation speed R of the indoor fan, and the specific corresponding relation is shown in table 2:
TABLE 2
When the indoor fan runs at a high speed, the temperature of the coil pipe is high, the sensible heat proportion is high, the dehumidification amount is small, and when the indoor fan runs at a high speed and a low speed, the temperature of the coil pipe is low, the latent heat proportion is high, and the dehumidification amount is large.
The rotating speeds of the indoor fans corresponding to different working frequency sections of the compressor are different, the rotating speed of the indoor fan corresponding to the low frequency section is low, and the rotating speed of the indoor fan corresponding to the high frequency section is high.
Alternatively, the rotation speed R of the indoor fan is calculated from the operating frequency F of the compressor by a calculation method, specifically, according to the following formula (3):
R=15×F+50。 (3)
as shown in fig. 2, a method for controlling an air conditioner according to an embodiment includes steps S101, collecting indoor temperature T and indoor humidity RH in an air-conditioning refrigeration mode, executing step S201 when the temperature difference delta T between the indoor temperature T and a set temperature T is less than a second set temperature difference delta T2 and the indoor humidity RH is outside a target humidity range (RH1, RH2), when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than the second set temperature difference Δ T2 and the indoor humidity RH is within the target humidity range (RH1, RH2), executing step S202, when the temperature difference Δ T between the indoor temperature T and the set temperature T is greater than or equal to the second set temperature difference Δ T2 and less than the first set temperature difference Δ T1, step S203 is executed, when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1, step S204 is performed.
The air conditioner is preset with a first set temperature differential Δ T1 and a second set temperature differential Δ T2. Wherein the first set temperature differential Δ T1 and the second set temperature differential Δ T2 are greater than zero. The first set temperature differential Δ T1 is greater than the second set temperature differential Δ T2.
In step S201, when the temperature difference Δ T between the indoor temperature T and the set temperature T is smaller than a second set temperature difference Δ T2, and the indoor humidity RH is outside the target humidity range (RH1, RH2), i.e. T-T < Δ T2, and RH (RH1, RH2), the operating frequency F of the compressor is controlled according to the temperature Tpn of the indoor coil, and the rotating speed R of the indoor fan is adjusted according to the operating frequency F of the compressor, so that the indoor humidity and the indoor temperature are both within the set target range.
In some embodiments, in step S201, when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than the second set temperature difference Δ T2, and the indoor humidity RH is outside the target humidity range (RH1, RH2), the condition is satisfied, i.e., T-T < Δ T2, and RH (RH1, RH2), at this time, the operating frequency F of the compressor is controlled according to the indoor humidity RH, and the rotating speed R of the indoor fan is adjusted according to the operating frequency F of the compressor, so that the indoor humidity and the indoor temperature are both within the set target range.
In some embodiments, in step S201, when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than a second set temperature difference Δ T2, and the indoor humidity RH is outside the target humidity range (RH1, RH2), a condition is satisfied, i.e., T-T < Δ T2, and RH (RH1, RH2), at this time, it is determined whether the condition is satisfied according to the indoor temperature T and the indoor humidity RH, if so, the operating frequency F of the compressor is controlled according to the temperature Tpn of the indoor coil and the indoor humidity RH, and the rotating speed R of the indoor fan is adjusted according to the operating frequency F of the compressor, so that both the indoor humidity and the indoor temperature are within the set target range.
In step S202, when the temperature difference Δ T between the indoor temperature T and the set temperature T is smaller than the second set temperature difference Δ T2, and the indoor humidity RH is within the target humidity range (RH1, RH2), the condition that T-T < Δ T2, and RH ∈ [ RH1, RH2] is not satisfied, at this time, the rotation speed R of the indoor fan and the operating frequency F of the compressor are kept unchanged.
In step S203, when the temperature difference Δ T between the indoor temperature T and the set temperature T is greater than or equal to the second set temperature difference Δ T2 and less than the first set temperature difference Δ T1, i.e., Δ T2 ≦ T-T < Δ T1, the operating frequency F of the compressor is adjusted to a set frequency F1.
In some embodiments, the set frequency f1 is 70% of the maximum compressor frequency.
In the foregoing embodiment, when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1, i.e., T-T ≧ Δ T1, the operating frequency F of the compressor is increased to reduce the indoor temperature.
In other embodiments, when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1, i.e., T-T ≧ Δ T1, the speed R of the indoor fan is increased to decrease the indoor temperature.
In other embodiments, when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1, i.e., T-T ≧ Δ T1, the operating frequency F of the compressor is increased, and the rotational speed R of the indoor fan is increased to increase the rate of reducing the indoor temperature.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
Fig. 3 is a block diagram illustrating a structure of an apparatus for controlling an air conditioner according to an exemplary embodiment. As shown in fig. 3, includes: a first temperature sensor 301, a humidity sensor 302 and an MCU303, the MCU303 comprising: a judgment unit 3031 and an adjustment unit 3032.
A first temperature sensor 301 for acquiring the indoor temperature t.
And the humidity sensor 302 is used for acquiring indoor humidity RH.
In this embodiment, the sensing end of the first temperature sensor is disposed on the air inlet of the air conditioner or the outer wall of the housing, and the sensing end of the humidity sensor is disposed on the air inlet of the air conditioner or the outer wall of the housing.
The determining unit 3031 is configured to determine whether a condition is satisfied according to the indoor temperature t and the indoor humidity RH.
And the adjusting unit 3032 is configured to, when the determining unit 3031 determines that the condition is met, control the operating frequency F of the compressor according to the temperature Tpn of the indoor coil and the indoor humidity RH, and adjust the rotating speed R of the indoor fan according to the operating frequency F of the compressor, so that both the indoor humidity and the indoor temperature are within the set target range.
In this embodiment, under the refrigeration mode, real-time indoor temperature is gathered to first temperature sensor, real-time indoor humidity is gathered to humidity transducer, judge whether the unit judges the running state that needs to the air conditioner and adjust, the temperature that indoor humidity and indoor coil pipe were synthesized to the regulating element is adjusted the operating frequency of compressor, and then the rotational speed of adjustment indoor fan, so that indoor humidity and indoor temperature all are located the target range of settlement, can effectual control latent heat/show the fever ratio, improve the effect of warm and humid two accuses, user experience has been improved simultaneously.
In some embodiments, the adjusting unit 3032 is configured to, when the determining unit determines that the condition is met, control an operating frequency F of the compressor according to the temperature Tpn of the indoor coil, and adjust a rotation speed R of the indoor fan according to the operating frequency F of the compressor, so that the indoor humidity and the indoor temperature are both within a set target range.
In some embodiments, the adjusting unit 3032 is configured to, when the determining unit determines that the condition is satisfied, control an operating frequency F of the compressor according to the indoor humidity RH, and adjust a rotation speed R of the indoor fan according to the operating frequency F of the compressor, so that both the indoor humidity and the indoor temperature are within a set target range.
In some embodiments, as shown in fig. 4, the apparatus for controlling an air conditioner, the MCU further includes: a calculation unit 401.
The calculating unit 401 is configured to calculate the operating frequency F of the compressor according to the temperature Tpn of the indoor coil, the temperature difference PT of the target temperature Tpm of the indoor coil, and the temperature change DT of the indoor coil. Specifically, the operating frequency F of the compressor is calculated according to equation (1).
An adjusting unit 3032, configured to adjust the operating frequency F of the compressor according to the calculation result of the calculating unit 401.
In some embodiments, the air conditioning system is provided with an operating frequency range of the compressor, and when the operating frequency F calculated by the calculation unit 401 is greater than a set upper limit value, the operating frequency F of the compressor is set to the upper limit value; and when the calculated working frequency F is less than the set lower limit value, setting the working frequency F of the compressor as the lower limit value so as to ensure the operating efficiency of the air conditioner and prolong the service life of the compressor of the air conditioner.
The adjusting unit 3032 adjusts the rotating speed R of the indoor fan according to the working frequency F of the compressor, and the higher the working frequency F of the compressor is, the higher the rotating speed R of the indoor fan is.
An optional mode is that the fan rotating speed is obtained according to table 2 through a preset corresponding relation between the working frequency F of the compressor and the rotating speed R of the indoor fan.
Alternatively, the rotation speed R of the indoor fan is determined by the calculation unit 401 according to the formula (2) from the operating frequency F of the compressor.
In some embodiments, the condition is satisfied when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than a second set temperature difference Δ T2 and the indoor humidity RH is outside the target humidity range (RH1, RH2), when the calculating unit 401 is configured to calculate the first candidate operating frequency of the compressor according to the indoor coil temperature Tpn by equation (1); calculating a second candidate operating frequency of the compressor according to the indoor humidity RH by equation (2); and the adjusting unit 3032 is configured to adjust the operating frequency of the compressor according to the calculation result of the calculating unit 401 by taking the smaller one of the first candidate operating frequency and the second candidate operating frequency as the operating frequency F of the compressor.
In some embodiments, the condition is satisfied when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than a second set temperature difference Δ T2 and the indoor humidity RH is outside the target humidity range (RH1, RH2), where the calculating unit 401 is configured to calculate the operating frequency of the compressor according to the temperature Tpn of the indoor coil by equation (1), and the adjusting unit 3032 is configured to adjust the operating frequency of the compressor according to the calculation result of the calculating unit 401.
In some embodiments, when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than the second set temperature difference Δ T2 and the indoor humidity RH is outside the target humidity range (RH1, RH2), the condition is satisfied, where the calculating unit 401 is configured to calculate the operating frequency of the compressor according to the indoor humidity RH by equation (2), and the adjusting unit 3032 is configured to adjust the operating frequency of the compressor according to the calculation result of the calculating unit 401.
In some embodiments, when the temperature difference Δ T between the indoor temperature T and the set temperature T is less than the second set temperature difference Δ T2 and the indoor humidity RH is within the target humidity range (RH1, RH2), the rotation speed R of the indoor fan and the operating frequency F of the compressor are maintained constant.
In some embodiments, the adjusting unit 3032 is further configured to adjust the operating frequency F of the compressor to a set frequency F1 when the temperature difference Δ T between the indoor temperature T and the set temperature T is greater than or equal to the second set temperature difference Δ T2 and less than the first set temperature difference Δ T1.
In some embodiments, the set frequency f1 is 70% of the maximum compressor frequency.
In some embodiments, the adjusting unit 3032 is further configured to increase the operating frequency F of the compressor to decrease the indoor temperature when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1.
In other embodiments, the adjusting unit 3032 is further configured to increase the rotation speed R of the indoor fan to decrease the indoor temperature when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1.
In other embodiments, the adjusting unit 3032 is further configured to increase the operating frequency F of the compressor and simultaneously increase the rotation speed R of the indoor fan to increase the rate of reducing the indoor temperature when the temperature difference Δ T is greater than or equal to the first set temperature difference Δ T1.
The present disclosure also includes an air conditioner comprising a compressor and an indoor fan, and further comprising the apparatus of any of the foregoing embodiments.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.