CN114294773A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
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- CN114294773A CN114294773A CN202111673600.0A CN202111673600A CN114294773A CN 114294773 A CN114294773 A CN 114294773A CN 202111673600 A CN202111673600 A CN 202111673600A CN 114294773 A CN114294773 A CN 114294773A
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- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses an air conditioner and a control method thereof, wherein the control method comprises the following steps: s1, operating an air conditioner; s2, judging a temperature area where the air conditioner is currently located according to the outdoor environment temperature, wherein the temperature area comprises a high temperature area, a medium temperature area and a low temperature area; s3, adjusting the frequency limiting value of each wind speed gear of an outdoor fan of the air conditioner corresponding to a compressor of the air conditioner to a preset frequency limiting value corresponding to each wind speed gear of the corresponding temperature zone according to the current temperature zone of the air conditioner; and S4, adjusting the wind speed of the outdoor fan and the operating frequency of the compressor according to the received wind speed instruction of the air conditioner and the current operating frequency of the compressor. Therefore, by partitioning according to different outdoor environment temperatures and independently setting the limiting frequency of the compressor under the wind speed of the outdoor fan at each gear in different temperature zones, the running performance of the whole machine in different temperature zones under the same wind speed can be effectively improved, the system capacity requirement of the whole machine is considered, and the problem of condensed water is effectively relieved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.
Background
The inverter air conditioner can limit the operation frequency of the compressor to different degrees according to some preset conditions. For example, the compressor operating frequency is limited based on indoor unit fan speed, the compressor operating frequency is limited based on indoor coil temperature, the compressor operating frequency is limited based on outdoor coil temperature, the compressor operating frequency is limited based on compressor operating time, and the like. However, the related art has a single frequency limiting mode, and cannot balance the requirement of the complete machine capacity and give consideration to the reliability of the complete machine operation.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide an air conditioner and a control method thereof.
A control method of an air conditioner according to an embodiment of a first aspect of the present invention is characterized by including the steps of: s1, operating the air conditioner; s2, judging a temperature area where the air conditioner is currently located according to the outdoor environment temperature, wherein the temperature area comprises a high temperature area, a medium temperature area and a low temperature area; s3, adjusting the frequency limiting value of each wind speed gear of an outdoor fan of the air conditioner corresponding to a compressor of the air conditioner to a preset frequency limiting value of the corresponding temperature area corresponding to each wind speed gear according to the current temperature area of the air conditioner; and S4, adjusting the wind speed of the outdoor fan and the operating frequency of the compressor according to the received wind speed instruction of the air conditioner and the current operating frequency of the compressor.
According to the control method of the air conditioner provided by the embodiment of the invention, the outdoor environment temperature is divided into the high-temperature area, the medium-temperature area and the low-temperature area according to different outdoor environment temperatures. The limiting frequency of the compressor under the wind speed of the outdoor fan of each gear is set independently in different temperature areas, so that the running performance of the whole machine in different temperature areas under the same wind speed can be effectively improved, the system capacity requirement of the whole machine is considered, and the problem of condensate water is effectively relieved.
In some embodiments, step S2 specifically includes: s21, judging whether the outdoor environment temperature is greater than a first temperature threshold value; s22, when the judgment result in the step S21 is yes, the air conditioner is in the high temperature area; s23, when the judgment result in the step S21 is negative, judging whether the outdoor environment temperature is larger than a second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value; s24, when the judgment result in the step S23 is yes, the air conditioner is in the medium temperature area; and S25, when the judgment result in the step S23 is negative, the air conditioner is in the low temperature area.
In some embodiments, the gears of the outdoor fan include a high wind gear, a medium wind gear, a low wind gear and a silent wind gear, and the frequency limiting values of the compressor corresponding to the high wind gear, the medium wind gear and the low wind gear are sequentially a medium wind allowable highest frequency, a low wind allowable highest frequency and a silent wind allowable highest frequency.
Step S4 specifically includes: s411, judging whether the received wind speed instruction is mute wind or not; s412, when the judgment result in the step S411 is yes, and when the current operation frequency of the compressor is greater than the medium wind allowable highest frequency, the outdoor fan operates at the high wind gear wind speed, and the compressor is subjected to frequency reduction to the medium wind allowable highest frequency; when the current operating frequency of the compressor is less than or equal to the medium wind allowable highest frequency and greater than the low wind allowable highest frequency, the outdoor fan operates at the medium wind speed, and the compressor is down-converted to the low wind allowable highest frequency; and when the current running frequency of the compressor is less than or equal to the low-wind allowable highest frequency and greater than the mute-wind allowable highest frequency, the outdoor fan runs at the low-wind gear wind speed, and the compressor reduces the frequency to the mute-wind allowable highest frequency.
In some embodiments, step S412 specifically includes: s4121, judging whether the current running frequency of the compressor is less than or equal to the stroke allowable highest frequency or not; s4122, when the judgment result in the step S4121 is positive, the outdoor fan operates at the wind speed of the middle gear; s4123, judging whether the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency or not; s4124, when the judgment result in the step S4123 is positive, the outdoor fan operates at the low-wind gear wind speed; s4125, judging whether the current running frequency of the compressor is less than or equal to the highest allowed frequency of the silent wind; s4126, when the judgment result in the step S4125 is positive, the outdoor fan operates at the mute wind gear wind speed; s4127, when the judgment result in the step S4125 is negative, the compressor reduces the frequency to the highest allowed frequency of the silent wind; s4128, when the judgment result in the step S4123 is negative, reducing the frequency of the compressor to the highest allowable low wind frequency; s4129, when the judgment result in the step S4121 is negative, the compressor reduces the frequency to the middle stroke allowable highest frequency.
In some embodiments, the control method of the air conditioner further includes: s413, when the judgment result in the step S411 is negative, judging whether the received wind speed instruction is low wind; s414, when the judgment result in the step S413 is yes, judging whether the current running frequency of the compressor is less than or equal to the middle stroke allowable highest frequency; s4141, when the judgment result in the step S414 is positive, the outdoor fan operates at the wind speed of the middle gear; s4142, judging whether the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency or not; s4143, when the judgment result in the step S4142 is positive, the outdoor fan operates at the low-wind gear wind speed; s4144, when the judgment result in the step S4142 is negative, the compressor reduces the frequency to the highest allowable low wind frequency; s4145, when the judgment result in the step S414 is negative, the compressor reduces the frequency to the middle stroke allowable highest frequency.
In some embodiments, further comprising: s415, when the judgment result in the step S413 is negative, judging whether the received wind speed instruction is a stroke; s416, when the judgment result in the step S415 is yes, judging whether the current running frequency of the compressor is less than or equal to the middle stroke allowable highest frequency; s4161, when the judgment result in the step S416 is positive, the outdoor fan operates at the middle wind gear wind speed; s4162, when the judgment result in the step S416 is negative, the compressor is reduced to the middle stroke allowable highest frequency.
In some embodiments, further comprising: s417, when the judgment result in the step S415 is negative, judging whether the received wind speed instruction is high wind; and S418, when the judgment result in the step S417 is yes, the outdoor fan operates at the high-gear wind speed.
In some embodiments, further comprising: and S419, when the judgment result in the step S417 is negative, stopping the air conditioner.
In some embodiments, before step S4, the method further includes: s31, after the compressor continuously runs for a preset time, executing step S4.
An air conditioner according to an embodiment of a second aspect of the present invention employs the control method of the air conditioner described in any one of the above embodiments.
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 above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention.
Fig. 2 is an enlarged view at a according to fig. 1.
Fig. 3 is an enlarged view at B according to fig. 1.
Detailed Description
Embodiments of the present invention are described in detail below, the embodiments described with reference to the drawings are exemplary, and an air conditioner and a control method thereof according to embodiments of the present invention are described below with reference to fig. 1 to 3.
Specifically, as shown in fig. 1 to 3, the control method of the air conditioner according to the embodiment of the present invention includes the steps of: s1, operating an air conditioner; s2, judging a temperature area where the air conditioner is currently located according to the outdoor environment temperature, wherein the temperature area comprises a high temperature area, a medium temperature area and a low temperature area; s3, adjusting the frequency limiting value of each wind speed gear of an outdoor fan of the air conditioner corresponding to a compressor of the air conditioner to a preset frequency limiting value corresponding to each wind speed gear of the corresponding temperature zone according to the current temperature zone of the air conditioner; and S4, adjusting the wind speed of the outdoor fan and the operating frequency of the compressor according to the received wind speed instruction of the air conditioner and the current operating frequency of the compressor.
For example, the temperature range of the high temperature region is T1, and T1 satisfies: t1 > 31 ℃; the temperature range of the medium temperature zone is T2, and T2 satisfies: t2 is more than or equal to 24 ℃ at the temperature of 31 ℃; the temperature range of the low-temperature zone is T3, and T3 satisfies the following conditions: t3 < 24 ℃.
Wherein, in the Flow chart, "Fmid" refers to the frequency limit value of the middle wind gear of the compressor, "Flow" refers to the frequency limit value of the low wind gear of the compressor, "fquit" refers to the frequency limit value of the silent wind gear of the compressor, and "Fcomp" refers to the current operating frequency of the compressor.
"FHMid" refers to the highest frequency of stroke allowable in the high temperature zone; "FLow" refers to the highest allowable frequency of low wind in the high temperature region; "FHquiet" refers to the highest allowable frequency of the quiet wind in the high temperature zone; "FMmid" refers to the highest frequency of stroke allowed in the mesophilic region; "FMlow" means the allowable maximum frequency of low wind in the middle temperature region; "FMquit" means the maximum allowable frequency of silent wind in the middle temperature zone; "FLmid" refers to the highest frequency of stroke allowable in the hypothermic region; "FLlow" refers to the lowest allowable frequency of low wind in the low temperature region; "flquitet" refers to the highest frequency allowed by the quiet wind in the low temperature zone.
If the outdoor fan is low in wind speed and the compressor is high in frequency, the reason is that the condenser is high in heat due to the high frequency of the compressor, and if the outdoor fan is low in wind speed, the current is increased, and the over-current burn-out condition is caused. However, if the air speed of the outdoor fan is too low, the refrigeration effect is not good, the cooling effect is limited, and the user experience is not good. And the air speed of the indoor fan is too low, the frequency of the outdoor compressor is higher, and if the indoor fan and the outdoor fan are coaxially arranged, more condensed water can be caused. The outdoor environment temperature is divided into three temperature-divided regions, namely a high temperature region, a medium temperature region and a low temperature region according to different outdoor environment temperatures. The limiting frequency of the compressor under each wind speed is set independently in different temperature areas, so that the running performance of the whole machine in different temperature areas under the same wind speed can be effectively improved. Not only gives consideration to the capability requirement of the whole system, but also effectively relieves the problem of condensed water.
The air conditioner can detect the outdoor environment temperature, so that the detected outdoor environment temperature is compared with the preset temperature of the air conditioner, the limiting frequency of the compressor under each wind speed is set independently in different temperature areas, and the running performance of the whole machine in different temperature areas under the same wind speed can be effectively improved. Not only gives consideration to the capability requirement of the whole system, but also effectively relieves the problem of condensed water. The frequency limiting value of the compressor is limited by controlling the wind speed of the outdoor fan in the temperature areas, the outdoor fan can be combined with the current temperature area and the frequency of the compressor to adjust the frequency of the compressor, so that the frequency of the compressor is located in the frequency limiting value of the temperature area, the frequency limiting value of the compressor and the wind speed of the outdoor fan are both in a reasonable range of the temperature area, the phenomenon that the compressor is high in frequency and low in rotating speed of the outdoor fan to cause overcurrent is avoided, the service life of the compressor is prevented from being influenced, the high wind speed of the outdoor fan is avoided, the frequency of the compressor is low, the refrigerating effect of the air conditioner is reduced, and the use experience of a user is influenced. Meanwhile, the whole capability of the air conditioner can be balanced, and the operation reliability of the air conditioner is improved.
Wherein, the maximum allowable frequency of the stroke of the compressor in the high temperature area is less than that of the compressor in the medium temperature area, and the maximum allowable frequency of the stroke of the compressor in the medium temperature area is less than that of the stroke of the compressor in the low temperature area. Of course, it can be understood that the logic of the low wind allowable highest frequency and the mute wind allowable highest frequency of each temperature zone is the same as that of the medium wind allowable highest frequency, and details are not described herein.
According to the control method of the air conditioner provided by the embodiment of the invention, the outdoor environment temperature is divided into the high-temperature area, the medium-temperature area and the low-temperature area according to different outdoor environment temperatures. The limiting frequency of the compressor under the wind speed of the outdoor fan of each gear is set independently in different temperature areas, so that the running performance of the whole machine in different temperature areas under the same wind speed can be effectively improved, the system capacity requirement of the whole machine is considered, and the problem of condensate water is effectively relieved.
In some embodiments, as shown in fig. 1 and fig. 2, step S2 specifically includes: s21, judging whether the outdoor environment temperature is greater than a first temperature threshold value; s22, when the judgment result in the step S21 is yes, the air conditioner is in a high temperature area;
s23, when the judgment result in the step S21 is negative, judging whether the outdoor environment temperature is larger than a second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value; s24, when the judgment result in the step S23 is yes, the air conditioner is in the middle temperature area; and S25, when the judgment result in the step S23 is negative, the air conditioner is in a low temperature area.
The outdoor ambient temperature may be set according to a region where the air conditioner is used, that is, the first temperature threshold and the second temperature threshold are set in different ranges, for example, the first temperature threshold may be 36 ℃, and the second temperature threshold may be 28 ℃, but do not represent a limitation of the first temperature threshold and the second temperature threshold. Therefore, the first temperature threshold and the second temperature threshold are set, so that different temperature areas can be formed, and the air conditioner can adjust the operation of the compressor and the outdoor fan according to the comparison between the outdoor environment temperature and the preset temperature area.
In some embodiments, the gears of the outdoor fan include a high wind gear, a medium wind gear, a low wind gear and a silent wind gear, and the frequency limiting values of the compressor corresponding to the high wind gear, the medium wind gear and the low wind gear are sequentially the medium wind allowable highest frequency, the low wind allowable highest frequency and the silent wind allowable highest frequency.
The compressor has the frequency corresponding to different wind speed gears of the outdoor fan, so that when the wind speed of the outdoor fan is adjusted, the highest frequency of the compressor corresponding to the wind speed is adjusted, the wind speed of the outdoor fan is adjusted, the running frequency of the compressor is adjusted, the running stability of the air conditioner is improved, and the generation of indoor side condensate water is effectively reduced.
Specifically, step S4 in fig. 1 includes: s411, judging whether the received wind speed instruction is mute wind or not; s412, when the judgment result in the step S411 is yes, when the current operation frequency of the compressor is greater than the stroke allowable highest frequency, the outdoor fan operates at a high-wind gear wind speed, and the compressor reduces the frequency to the stroke allowable highest frequency; when the current running frequency of the compressor is less than or equal to the middle wind allowable highest frequency and greater than the low wind allowable highest frequency, the outdoor fan runs at the middle wind gear speed, and the compressor reduces the frequency to the low wind allowable highest frequency; when the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency and greater than the mute wind allowable highest frequency, the outdoor fan runs at the low wind gear speed, and the compressor reduces the frequency to the mute wind allowable highest frequency.
When the air conditioner needs to be in mute wind and the running frequency of the compressor is greater than the maximum allowable wind speed, the air conditioner controls the high wind gear of the outdoor fan to run, and adjusts the frequency of the compressor so that the frequency of the compressor is reduced to the maximum allowable wind speed in the temperature area and continues to be reduced. If the operating frequency of the compressor is between the maximum allowable frequency of the medium wind and the maximum allowable frequency of the low wind, the air conditioner controls the wind gear of the outdoor fan to operate so that the operating frequency of the compressor is reduced to the maximum allowable frequency of the low wind in the temperature region. If the running frequency of the compressor is less than or equal to the maximum allowable low-wind frequency, the air conditioner controls the outdoor fan to run at a low-wind gear so that the running frequency of the compressor is reduced to the maximum allowable low-wind frequency of the temperature zone. As described above, the compressor is gradually lowered from the highest allowable high-wind frequency to the highest allowable mute-wind frequency through the downshifting of the outdoor fan, so that the air conditioner can finish the adjustment of the mute-wind. At this time, the wind speed of the indoor fan, the wind speed of the outdoor fan, and the frequency of the operation of the compressor are all reduced. The adjustment process effectively avoids outdoor fan wind speed too high, and compressor frequency crosses lowly to lead to the not good condition of refrigeration effect to appear, and can avoid the too high indoor too much comdenstion water that produces of wind speed, influences user's use and experiences.
In some embodiments, as shown in fig. 1, step S412 specifically includes: s4121, judging whether the current running frequency of the compressor is less than or equal to the maximum allowable stroke frequency or not; s4122, when the judgment result in the step S4121 is positive, the outdoor fan operates at the wind speed of the middle wind gear; s4123, judging whether the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency; s4124, when the judgment result in the step S4123 is positive, the outdoor fan operates at a low wind gear wind speed; s4125, judging whether the current running frequency of the compressor is less than or equal to the highest allowed frequency of the silent wind; s4126, when the judgment result in the step S4125 is positive, the outdoor fan operates at the mute wind gear wind speed; s4127, when the judgment result in the step S4125 is negative, the compressor reduces the frequency to the highest allowable frequency of the mute air; s4128, when the judgment result in the step S4123 is negative, the compressor reduces the frequency to the highest allowable frequency of low wind; s4129, when the judgment result in the step S4121 is negative, the compressor reduces the frequency to the middle wind allowable highest frequency.
It is understood that when the air conditioner is set to a silent wind, the wind speed is continuously adjusted before reaching the silent wind, for example, when the operation frequency of the compressor is less than or equal to the maximum allowable wind speed, the outdoor fan is operated in a wind gear position; when the running frequency of the compressor is less than or equal to the maximum allowable low-wind frequency, the outdoor fan runs at a low-wind gear; and when the running frequency of the compressor is less than the highest allowed frequency of the mute wind, the mute wind gear of the outdoor fan runs until the compressor reduces the frequency to the highest allowed frequency of the mute wind.
Therefore, the wind speed gears of the outdoor fans are arranged, so that the wind speed of the outdoor fans can be adjusted in multiple stages, the outdoor fans can adjust the compression operation frequency conveniently, and the operation frequency of the compressor can meet the set requirement.
In some embodiments, as shown in fig. 2, the control method of the air conditioner further includes: s413, when the judgment result in the step S411 is negative, judging whether the received wind speed instruction is low wind; s414, when the judgment result in the step S413 is yes, judging whether the current running frequency of the compressor is less than or equal to the maximum allowable frequency of the wind stroke; s4141, when the judgment result in the step S414 is positive, the outdoor fan operates at the wind speed of the middle wind gear; s4142, judging whether the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency; s4143, when the judgment result in the step S4142 is positive, the outdoor fan operates at a low wind gear wind speed; s4144, when the judgment result in the step S4142 is negative, the compressor reduces the frequency to the highest allowable frequency of low wind; s4145, when the judgment result in the step S414 is negative, the compressor reduces the frequency to the middle wind allowable highest frequency. Therefore, the wind speed gears of the outdoor fans are arranged, so that the wind speed of the outdoor fans can be adjusted in multiple stages, the outdoor fans can adjust the compression operation frequency conveniently, and the operation frequency of the compressor can meet the set requirement. Meanwhile, the running performance of the whole machine in different temperature areas at the same wind speed can be effectively improved, the system capacity requirement of the whole machine is considered, and the problem of condensate water is effectively relieved.
In some embodiments, referring to fig. 3, further comprising: s415, when the judgment result in the step S413 is negative, judging whether the received wind speed instruction is stroke; s416, when the judgment result in the step S415 is yes, judging whether the current running frequency of the compressor is less than or equal to the maximum allowable frequency of the wind stroke; s4161, when the judgment result in the step S416 is yes, the outdoor fan operates at the wind speed with the middle wind gear; s4162, when the judgment result in the step S416 is negative, the compressor is reduced to the middle stroke allowable highest frequency. Therefore, the frequency of the compressor can be limited according to the air speed of the outdoor fan, so that the running performance of the whole machine in different temperature areas under the same air speed can be effectively improved, the system capacity requirement of the whole machine is considered, and the problem of condensate water is effectively relieved.
In some embodiments, as shown in fig. 3, further comprising: s417, when the judgment result in the step S415 is negative, judging whether the received wind speed command is high wind; and S418, when the judgment result in the step S417 is yes, the outdoor fan operates at a high-wind gear wind speed. Need not to restrict the frequency of compressor during high wind gear, the frequency of compressor can not be higher than outdoor fan wind speed too much, can guarantee the air conditioner operating efficiency simultaneously, reduces the comdenstion water.
In some embodiments, as shown in fig. 3, further comprising: and S419, when the judgment result in the step S417 is negative, the air conditioner stops. At the moment, the outdoor fan has no wind speed, the air conditioner is closed, the air conditioner can be protected, and the situation that the internal short circuit of the control system is caused by the faults of some control systems is avoided.
In some embodiments, as shown, before step S4, the method further includes: s31, after the compressor is continuously operated for a preset time, the step S4 is executed. That is, when the air conditioner determines what state the outdoor fan is in, the air conditioner needs to operate for a period of time, for example, after the compressor can operate for 5 minutes, step S4 is executed after the air conditioner is at a normal temperature, so as to avoid the influence of the ambient temperature of the air conditioner on the air conditioner, and enable the outdoor fan to accurately adjust the compressor within the temperature range.
An air conditioner according to an embodiment of a second aspect of the present invention employs the control method of the air conditioner of any one of the above embodiments.
With reference to fig. 1 to 3, when the air conditioner needs to be adjusted to be in a quiet wind, if the current operating frequency of the compressor is less than or equal to the maximum allowable frequency for medium wind, the outdoor fan is adjusted to be in a medium wind gear position, and if the operating frequency of the compressor is greater than the maximum allowable frequency for medium wind, the compressor reduces the operating frequency to the maximum allowable frequency for medium wind and the maximum allowable frequency for medium wind. If the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency, the outdoor fan is adjusted to be in a low wind gear, and if the running frequency of the compressor is greater than the low wind allowable highest frequency and less than the medium wind allowable highest frequency, the running frequency of the compressor is reduced to be in the low wind allowable highest frequency. If the current running frequency of the compressor is less than or equal to the maximum allowable mute wind frequency, the outdoor fan is adjusted to be a mute wind gear to realize mute wind adjustment of the air conditioner, and if the running frequency of the compressor is greater than the maximum allowable mute wind frequency, the running frequency of the compressor is reduced to the maximum allowable mute wind frequency.
When the air conditioner needs to be adjusted to be in low wind, if the current running frequency of the compressor is less than or equal to the stroke allowable maximum frequency, the outdoor fan is adjusted to be in a stroke gear, and if the running frequency of the compressor is greater than the stroke allowable maximum frequency, the running frequency of the compressor is reduced to the stroke allowable maximum frequency and the stroke allowable maximum frequency is adopted. If the current operation frequency of the compressor is less than or equal to the low wind allowable highest frequency, the outdoor fan is adjusted to be in a low wind gear, and if the operation frequency of the compressor is greater than the low wind allowable highest frequency, the operation frequency of the compressor is reduced to the low wind allowable highest frequency and the low wind allowable highest frequency is adopted.
When the air conditioner needs to be adjusted to be in the middle wind, if the current running frequency of the compressor is less than or equal to the middle wind allowable highest frequency, the outdoor fan is adjusted to be in the middle wind gear, and if the running frequency of the compressor is greater than the middle wind allowable highest frequency, the running frequency of the compressor is reduced to be in the middle wind allowable highest frequency and the middle wind allowable highest frequency is adopted. When the air conditioner needs to be adjusted to be in high wind, the outdoor fan is adjusted to a high wind gear position to realize high wind adjustment of the air conditioner.
Therefore, through adjusting the wind speed of the outdoor fan and setting a corresponding temperature area, when the outdoor environment temperature is higher, the compressor is controlled to reduce the frequency to a smaller frequency, excessive condensation water is avoided, the outdoor environment temperature is high, when the outdoor fan runs at a low wind gear, the pressure of a control system of the air conditioner is larger, the highest frequency of the compressor limited by the low wind gear is smaller than the highest frequency allowed by the low temperature area, the compressor can be protected to avoid over-current burning, and meanwhile, when the outdoor environment temperature is lower, the compressor is controlled to reduce the frequency to a larger frequency, and the refrigerating effect of the air conditioner is improved.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A control method of an air conditioner is characterized by comprising the following steps:
s1, operating the air conditioner;
s2, judging a temperature area where the air conditioner is currently located according to the outdoor environment temperature, wherein the temperature area comprises a high temperature area, a medium temperature area and a low temperature area;
s3, adjusting the frequency limiting value of each wind speed gear of an outdoor fan of the air conditioner corresponding to a compressor of the air conditioner to a preset frequency limiting value of the corresponding temperature area corresponding to each wind speed gear according to the current temperature area of the air conditioner;
and S4, adjusting the wind speed of the outdoor fan and the operating frequency of the compressor according to the received wind speed instruction of the air conditioner and the current operating frequency of the compressor.
2. The method for controlling an air conditioner according to claim 1, wherein the step S2 specifically includes:
s21, judging whether the outdoor environment temperature is greater than a first temperature threshold value;
s22, when the judgment result in the step S21 is yes, the air conditioner is in the high temperature area;
s23, when the judgment result in the step S21 is negative, judging whether the outdoor environment temperature is larger than a second temperature threshold value, wherein the second temperature threshold value is smaller than the first temperature threshold value;
s24, when the judgment result in the step S23 is yes, the air conditioner is in the medium temperature area;
and S25, when the judgment result in the step S23 is negative, the air conditioner is in the low temperature area.
3. The control method of the air conditioner according to claim 1, wherein the gear of the outdoor fan includes a high wind gear, a medium wind gear, a low wind gear and a silent wind gear, and the frequency limit values of the compressor corresponding to the high wind gear, the medium wind gear and the low wind gear are sequentially a medium wind allowable highest frequency, a low wind allowable highest frequency and a silent wind allowable highest frequency;
step S4 specifically includes:
s411, judging whether the received wind speed instruction is mute wind or not;
s412, when the judgment result in the step S411 is YES,
when the current operating frequency of the compressor is greater than the medium wind allowable maximum frequency, the outdoor fan operates at the high wind gear speed, and the compressor is reduced to the medium wind allowable maximum frequency;
when the current operating frequency of the compressor is less than or equal to the medium wind allowable highest frequency and greater than the low wind allowable highest frequency, the outdoor fan operates at the medium wind speed, and the compressor is down-converted to the low wind allowable highest frequency;
and when the current running frequency of the compressor is less than or equal to the low-wind allowable highest frequency and greater than the mute-wind allowable highest frequency, the outdoor fan runs at the low-wind gear wind speed, and the compressor reduces the frequency to the mute-wind allowable highest frequency.
4. The method for controlling an air conditioner according to claim 3, wherein the step S412 specifically includes:
s4121, judging whether the current running frequency of the compressor is less than or equal to the stroke allowable highest frequency or not;
s4122, when the judgment result in the step S4121 is positive, the outdoor fan operates at the wind speed of the middle gear;
s4123, judging whether the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency or not;
s4124, when the judgment result in the step S4123 is positive, the outdoor fan operates at the low-wind gear wind speed;
s4125, judging whether the current running frequency of the compressor is less than or equal to the highest allowed frequency of the silent wind;
s4126, when the judgment result in the step S4125 is positive, the outdoor fan operates at the mute wind gear wind speed;
s4127, when the judgment result in the step S4125 is negative, the compressor reduces the frequency to the highest allowed frequency of the silent wind;
s4128, when the judgment result in the step S4123 is negative, reducing the frequency of the compressor to the highest allowable low wind frequency;
s4129, when the judgment result in the step S4121 is negative, the compressor reduces the frequency to the middle stroke allowable highest frequency.
5. The control method of an air conditioner according to claim 1, further comprising:
s413, when the judgment result in the step S411 is negative, judging whether the received wind speed instruction is low wind;
s414, when the judgment result in the step S413 is yes, judging whether the current running frequency of the compressor is less than or equal to the middle stroke allowable highest frequency;
s4141, when the judgment result in the step S414 is positive, the outdoor fan operates at the wind speed of the middle gear;
s4142, judging whether the current running frequency of the compressor is less than or equal to the low wind allowable highest frequency or not;
s4143, when the judgment result in the step S4142 is positive, the outdoor fan operates at the low-wind gear wind speed;
s4144, when the judgment result in the step S4142 is negative, the compressor reduces the frequency to the highest allowable low wind frequency;
s4145, when the judgment result in the step S414 is negative, the compressor reduces the frequency to the middle stroke allowable highest frequency.
6. The control method of an air conditioner according to claim 5, further comprising:
s415, when the judgment result in the step S413 is negative, judging whether the received wind speed instruction is a stroke;
s416, when the judgment result in the step S415 is yes, judging whether the current running frequency of the compressor is less than or equal to the middle stroke allowable highest frequency;
s4161, when the judgment result in the step S416 is positive, the outdoor fan operates at the middle wind gear wind speed;
s4162, when the judgment result in the step S416 is negative, the compressor is reduced to the middle stroke allowable highest frequency.
7. The control method of an air conditioner according to claim 6, further comprising:
s417, when the judgment result in the step S415 is negative, judging whether the received wind speed instruction is high wind;
and S418, when the judgment result in the step S417 is yes, the outdoor fan operates at the high-gear wind speed.
8. The control method of an air conditioner according to claim 7, further comprising:
and S419, when the judgment result in the step S417 is negative, stopping the air conditioner.
9. The control method of an air conditioner according to any one of claims 1-8, before step S4, further comprising:
s31, after the compressor continuously runs for a preset time, executing step S4.
10. An air conditioner characterized by employing the control method of the air conditioner according to any one of claims 1 to 9.
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