CN113623820B - Indoor unit condensation prevention control method and device, storage medium and air conditioner - Google Patents
Indoor unit condensation prevention control method and device, storage medium and air conditioner Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides an indoor unit anti-condensation control method, an indoor unit anti-condensation control device, a storage medium and an air conditioner, wherein the indoor unit anti-condensation control method is used for detecting the boundary distance N of an air outlet to calculate the condensation size X, the air sweeping and/or guiding speed of the air conditioner is adjusted according to the condensation size, and the boundary distances of the air outlet before and after refrigeration or dehumidification are respectively N 1 、N 2 And X = N 1 ‑N 2 . The internal machine anti-condensation control method accurately reflects the condensation condition of the air conditioner through the boundary size change of the air outlets before and after refrigeration or dehumidification, and has high detection precision; and meanwhile, the angular speed of the air sweeping and/or guiding is adjusted according to the condition so as to change the flow direction of the air outlet frequently, the temperature difference of the air outlet is reduced so as to reduce condensation, the refrigeration effect of the air conditioner is not influenced, and the user experience is good.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an internal unit anti-condensation control method and device, a storage medium and an air conditioner.
Background
The air conditioner can create a comfortable indoor environment by adjusting the indoor temperature, and becomes a necessary living electrical appliance for the modern life; with the improvement of living standard, the requirements of users on the performance and the comfort of the air conditioner are higher and higher.
Condensation is one of the common after-sale problems of air conditioners, and particularly in the rainy season in the south, if the air conditioners have poor air tightness or are ventilated after windows are opened, the air conditioners are easy to operate in a high-temperature high-humidity environment for a long time. In order to adjust the room temperature to a preset temperature, particularly, the variable frequency air conditioner can automatically run at a high frequency to enable the air outlet temperature to be extremely low (such as 8-10 ℃), particularly, condensation generated at positions such as an air deflector, an air outlet, an air guide blade and the like can drop in a large amount, the wall surface becomes mildewed when the condensation is serious, and the user experience is poor and complaints are easy to occur;
in the prior art, the condensation phenomenon is mainly improved by detecting the temperature of each branch of an evaporator or detecting the environmental humidity and adjusting the running frequency of a compressor, the rotating speed of a fan and the like; if the Chinese patent with the application number of 201210181962.2 discloses a control method and a control device for preventing condensation of an air conditioner, the control method and the control device detect whether the current temperature state of the air conditioner is smaller than a preset threshold value by judging the operation mode of the air conditioner, and start the condensation prevention mode when the change value of the inner ring temperature is less than or equal to delta T1 and the duration time exceeds T1. The applicant also made relevant research on the method, the device and the air conditioner, for example, the chinese patent with the application number of 202010396072.8 discloses an indoor unit condensation detection method, a device and an air conditioner, wherein the indoor unit reflects and/or refracts the received signal by controlling a signal emitter to emit the signal; judging the condition of the condensed water according to the signal intensity received by the signal receiver; adjusting the operation mode of the air conditioner according to the condition of the condensed water; however, the method has poor detection accuracy, is difficult to give consideration to the refrigeration performance of the air conditioner, and has poor user experience.
Disclosure of Invention
The invention solves the technical problems that condensation is easily generated at an air outlet of an air conditioner under a high-temperature and high-humidity environment, and the refrigeration and the condensation prevention of the air conditioner are difficult to realize at the same time.
In order to solve the problems, the invention provides a control method for preventing condensation of an internal machine, which comprises the steps of detecting the boundary distance N of an air outlet, calculating the size X of the condensation, adjusting the air sweeping and/or guiding speed of an air conditioner according to the size of the condensation, wherein the boundary distances of the air outlet before and after refrigeration are respectively N 1 、N 2 And X = N 1 -N 2 。
The size of condensation generated is reflected by detecting the distance change of the upper edge and the lower edge of the air outlet before and after refrigeration or dehumidification; if the condensation is serious, if the condensation appears on the upper edge and the lower edge, the condensation also exists on the lower edge because the condensation on the upper edge faces the lower edge, and the distance between the upper edge and the lower edge of the air outlet reflecting the size of the condensation is reduced by times, so that the detection accuracy is higher; sweep wind and/or wind-guiding speed with disturbance air-out air current through the adjustment, reduce the difference in temperature of air outlet in order to reduce the production of condensation, do not have the influence to the refrigeration effect of air conditioner itself, user experience is good.
Preferably, the method comprises: s1, detecting boundary distance N of air outlet by using detection unit 1 The detection unit is used for infrared detection; s2, when the air conditioner operates in a refrigeration or dehumidification mode, every delta t 1 Determining boundary distance N of air outlet after time duration 2 (ii) a S3, calculating and judging whether the condensation size X is larger than or equal to L A If so, controlling the air conditioner to operate at a certain air sweeping and/or guiding speed, otherwise, controlling the air conditioner to be in a non-condensation state, wherein L A Is a first size threshold.
The detection unit can transmit signals to the leftmost end, the rightmost end, the uppermost end and the lowermost end of the air outlet, sequentially detect the distance between the upper edge and the lower edge or the distance between the left side and the right side of the air outlet along the length direction of the indoor unit, and calculate the size of condensation according to the change of the boundary position of the air outlet before and after refrigeration; the boundary distance N 1 The distance between the edge position of the upper edge and the edge position of the lower edge of the air outlet on the same cross section can be the distance between the edge position of the left side and the edge position of the right side of the air outlet on the same cross section. Preferably, the boundary distance N 1 Is the distance between the edge position of the upper edge and the edge position of the lower edge of the air outlet on the same section.
As an example of the present invention, the detection unit includes an infrared emitter, an infrared receiver, a conversion module, and a collector; preferably, the surfaces of the two sides of the interior of the conversion module, on which the infrared emitter and the infrared receiver are arranged, and the surfaces of the upper edge and the lower edge of the air outlet are made of light guide materials, so that infrared signals emitted by the infrared emitter pass through the conversion module to reach the surfaces of the upper edge and the lower edge of the air outlet, and are received by the infrared receiver after being reflected; the rest surfaces of the conversion module do not guide light, so that the influence of light rays in other directions on the signal receiver is avoided, and the signal reflected by the surfaces can be normally received by the infrared receiver. The condensation is detected by infrared, so that the influence of ambient humid air is avoided, and the control precision is higher; meanwhile, the hardware cost is low, the size is small, and the requirements on the installation position and the environment are low.
Preferably, the step S3 includes: s31, calculating and judging whether the condensation size X is larger than or equal to L A If yes, go to step S32; if not, the air conditioner is in a non-condensation state, wherein L A A first size threshold; s32, judging whether the condensation size X is larger than or equal to L B If so, controlling the air conditioner to operate in a second air sweeping mode when the air conditioner is in a serious condensation state; if not, go to step S33; s33, the air conditioner is in a light condensation state, and the air conditioner is controlled to operate in a first air scanning mode, wherein L B Is a second size threshold, and L A ＜L B . And graded response is carried out according to the size of the condensation size, so that the influence on the normal refrigeration and air supply effects of the air conditioner is reduced, and the user experience is good.
Preferably, when the air conditioner is in a condensation-free state, the normal operation mode is executed; when the air conditioner is in a slight condensation state, a first air scanning mode is executed, and the air deflector is controlled to rotate at a first air guiding speed V Lead 1 Acting or sweeping the bladesFirst wind sweeping speed V Broom (1) An action; when the air conditioner is in a serious condensation state, a second air sweeping mode is executed, and the air deflector is controlled to rotate at a second air deflecting speed V Lead 2 Acting and/or sweeping blades at a second sweeping speed V Broom 2 Act and close the window, wherein V Guide 1 ＜V Guide 2 ，V Broom (1) ＜V Broom 2 。
When the size of the condensation is small, firstly, the air supply effect and the habit of a user of the air conditioner are ensured, and the air deflector or the air sweeping blade is adjusted at a small angular speed to slow down the generation of the condensation; and when the condensation size is larger and continues to increase, the air deflector and/or the wind sweeping blade are adjusted at a larger angular speed, and meanwhile, a prompt is given to a user to close the window. The condensation position is only transferred by adjusting the wind sweeping angle (not the wind sweeping speed), for example, the condensation position is transferred from the upper edge of the air outlet before adjustment to the lower position of the upper edge of the air outlet, but the generation of condensation in a high-temperature and high-humidity environment cannot be reduced or eliminated by changing the wind sweeping angle, and the condensation prevention effect cannot be realized; the applicant discovers through relevant experimental research that the air flow of the air outlet can be frequently changed by adjusting the air sweeping speed and/or the air guiding speed, cold and hot air is damaged to be gathered at the air outlet for a long time, the temperature difference of the condensation position of the air outlet is reduced on the periphery side, and therefore the condensation problem of the air outlet is thoroughly solved on the premise that the refrigeration effect is not influenced completely.
Preferably,. DELTA.t 1 Is 5-15min, and has a gel size L A 、L B Respectively 1.7-2.3mm, 3.8-4.2mm and V Guide 1 、V Lead 2 、V Broom 1 、V Broom 2 Respectively 5-9 degrees/s, 14-18 degrees/s, 8-12 degrees/s and 20-24 degrees/s. In general, a longer time in the condensation-prone state results in a gradual increase in the size of the condensation, Δ t 1 There was a significant change in the size of the condensation produced at 5-15min and the condensation generally did not drip.
Preferably, the prompt is that the air conditioner display lamp is in a first color in the normal mode, the display lamp is in a second color in the first wind sweeping mode, and the display lamp is in a third color in the second wind sweeping mode. Preferably, the first color, the second color and the third color are green, yellow and red respectively; when the display is red, the user is reminded to close the window so as to gradually reduce the indoor humidity and the indoor temperature, so that the temperature difference between the indoor air at the air outlet and the low-temperature air outlet flow is reduced, condensation is reduced, and the condensation is prevented from being continuously increased. Of course, the user may be prompted to close the window by a buzzer sound or a combination of sound and light generated by the air conditioner.
Compared with the prior art, the control method for preventing the condensation of the internal machine has the following beneficial effects: (1) The condensation condition of the air conditioner can be accurately reflected through the change of the boundary size of the air outlet before and after refrigeration or dehumidification, and particularly, when the condensation is serious, such as the condensation occurs on the upper edge and the lower edge of the air outlet, the boundary size can be quickly reduced by a large slope, and the detection precision is high; (2) The angular speed of the air sweeping and/or guiding is adjusted according to the situation to change the flow direction of the outlet air frequently, the temperature difference of the air outlet is reduced to reduce condensation, the refrigeration effect of the air conditioner is not influenced, and the user experience is good; (3) The required hardware cost is low and the requirements on installation position and environment are low.
The invention also provides an indoor unit condensation control device, which comprises a detection unit, a control unit and a control unit, wherein the detection unit is arranged on the upper edge or the lower edge of the air outlet and is used for detecting the spatial positions of the upper edge and the lower edge of the air outlet; the calculation unit is used for calculating the boundary distance according to the space positions of the upper edge and the lower edge and calculating the size of condensation according to the boundary distance before and after refrigeration or dehumidification; a judging unit for judging whether the air conditioner is in a cooling or dehumidifying mode, and judging whether the condensation size X is relative to a first size threshold L A A second size threshold L B The size of (d); and the control unit is used for controlling the air conditioner to adjust the rotating angular speeds of the air deflector and the wind sweeping blade according to the judgment result of the judgment unit. The upper edge and the lower edge of the air outlet can be identified through the detection unit, and the boundary distance of the air outlet is further detected;
the invention also provides an air conditioner which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the control method for preventing the condensation of the indoor unit. The invention also provides a computer readable storage medium, which stores a computer program, and when the computer program is read and executed by a processor, the control method for preventing condensation of the internal machine is realized. The air conditioner and the computer readable storage medium have the same beneficial effects as the internal machine anti-condensation control method, and are not described herein again.
Drawings
Fig. 1 is a sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a control method for preventing condensation of an internal machine according to embodiment 1 of the present invention;
fig. 3 is a schematic flow chart of a control method for preventing condensation of an internal machine according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of an indoor unit condensation control device according to an embodiment of the present invention.
Description of the reference numerals:
1-a front panel; 2-a back plate; 3-a heat exchanger; 4-wind wheel; 5-a detection unit; 6-air deflector; 7-upper volute tongue; 8-lower volute tongue.
Detailed Description
When the air conditioner is turned on in humid weather with high humidity, the surface temperature of the air conditioner is lower than the dew point temperature of the ambient air, and condensation can occur. The common condensation is mainly on an air duct and a cross-flow fan blade inside the indoor unit or on an air outlet, a wind sweeping blade and an air deflector of the indoor unit; condensation formed on the air duct and the cross-flow fan blade can be normally discharged through the drainage structure, and condensation generated near the air outlet can drip into a room after being gathered; especially in the plum rain season in south, even the situation that the air outlet of the air conditioner flows down, and the user experience is seriously influenced.
The condensation described in the application refers to condensation generated near the air outlet; after condensation occurs, the frequency of a compressor, the rotating speed of a fan and the like are usually adjusted to improve, but the refrigeration effect is easy to be insufficient, and the comfort is reduced. The balancing of anti-condensation and refrigeration is therefore an important issue that designers need to address.
Technical solutions between the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent. In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1, an indoor unit of an air conditioner includes a front panel 1 and a back panel 2 which are oppositely disposed to form an air inlet (not shown) and an air outlet (not shown), a heat exchanger 3 disposed between the front panel 1 and the back panel 2, a wind wheel 4, and a front volute 7 and a rear volute 8 which are respectively disposed at two opposite sides of the wind wheel 4 to form an air duct, wherein the air inlet is located at an upper end portion of the front panel 1 and the back panel 2, the heat exchanger 3 is disposed near the air inlet to exchange heat for an incoming air flow, and the front volute 7 and the rear volute 8 both extend from the wind wheel 4 to the air outlet. The indoor unit further comprises an air deflector 6 and a wind sweeping blade positioned at the air outlet, and the structure is the same as that of the prior art and is not described herein again. The indoor unit is also provided with a detection unit 5 which can detect the distance between the upper edge and the lower edge of the air outlet; preferably, the detection unit 5 is arranged in the middle of the lower edge of the air outlet, and can transmit signals to the leftmost end, the rightmost end, the uppermost end and the lowermost end of the air outlet, sequentially detect the distances between the upper edge and the lower edge of the air outlet along the length direction of the indoor unit, and calculate the condensation size by detecting the boundary position of the air outlet before and after refrigeration; preferably, the detection unit 5 is an infrared detector, and the specific structure and detection principle thereof are the prior art and are not described herein again.
As shown in fig. 2, the invention provides an indoor unit condensation prevention control method, which includes detecting a boundary distance N of an air outlet through a detection unit 5, calculating a condensation size X, and adjusting a wind sweeping speed and/or a wind guiding speed of an air conditioner according to the condensation size, wherein the boundary distances of the air outlet before and after refrigeration or dehumidification are respectively N 1 、N 2 And X = N 1 -N 2 . Under a high-temperature and high-humidity environment, condensation is easily formed at an air outlet of the air conditioner, and the condition that condensed water flows downwards is caused when the air conditioner is serious; in the prior art, when infrared detection is utilized, partial signals are refracted by condensation, so that received signals are weakened and the size of the condensed water amount is reflected, but the size of the condensation is influenced by the change of the air outlet directionLocation, etc., resulting in a deviation in the results. The method and the device reflect the size of the generated condensation by detecting the distance change between the upper edge and the lower edge of the air outlet before and after refrigeration or dehumidification; if the condensation is serious, if the condensation occurs on the upper edge and the lower edge, the condensation is also present on the lower edge because the condensation on the upper edge faces the lower edge, and the distance between the upper edge and the lower edge of the air outlet reflecting the size of the condensation is reduced by times, so that the detection accuracy is higher; the air outlet air flow is disturbed by adjusting the air sweeping speed and/or the air guiding speed, the temperature difference of the air outlet is reduced to reduce condensation, and the refrigeration effect of the air conditioner is not influenced.
The method comprises the following steps: s1, detecting boundary distance N of air outlet by using detection unit 1 The detection unit is used for infrared detection; s2, when the air conditioner operates in a refrigeration or dehumidification mode, every delta t 1 Determining the boundary distance N of the air outlet after a long time 2 (ii) a S3, calculating and judging whether the condensation size X is larger than or equal to L A If yes, controlling the air conditioner to run at a certain air sweeping and/or guiding speed, and if not, controlling the air conditioner to be in a condensation-free state, wherein L A Is a first size threshold. The detection unit can transmit signals to the leftmost end, the rightmost end, the uppermost end and the bottommost end of the air outlet, sequentially detect the distance between the upper edge and the lower edge or the distance between the left side and the right side of the air outlet along the length direction of the indoor unit, and calculate the size of condensation according to the boundary position change of the air outlet before and after refrigeration; the boundary distance N 1 The distance between the edge positions of the upper edge and the lower edge of the air outlet on the same cross section can be the distance between the edge positions of the left side and the right side of the air outlet on the same cross section. Preferably, the boundary distance N 1 The distance between the edge position of the upper edge and the edge position of the lower edge of the air outlet on the same section is adopted.
Preferably, the indoor unit comprises at least two detection units 5, the detection units 5 are dispersedly distributed on the upper edge and the lower edge of the air outlet or one side of the air deflector, and each detection unit 5 can independently detect the boundary distance N of the air outlet 1 And by arranging a plurality of detection units, the detection result can be corrected, so that the detection result is more accurate, and the user experience of the air conditioner is improved. Preference is given toThe detection unit is used for infrared detection, is not easily influenced by ambient humid air, and has higher control precision; meanwhile, the hardware cost is low, the size is small, and the requirements on the installation position and the environment are low.
The step S3 includes: the step S3 includes: s31, calculating and judging whether the condensation size X is larger than or equal to L A If yes, go to step S32; if not, the air conditioner is in a non-condensation state, wherein L A Is a first size threshold; s32, judging whether the condensation size X is larger than or equal to L B If so, controlling the air conditioner to operate in a second air sweeping mode when the air conditioner is in a serious condensation state; if not, go to step S33; s33, the air conditioner is in a light condensation state, and the air conditioner is controlled to operate in a first air scanning mode, wherein L B Is a second size threshold, and L A ＜L B . Different operation modes are executed according to the size of the condensation, the influence on the normal refrigeration and air supply effects of the air conditioner is reduced, and the user experience is good.
As an example of the present invention, the detection unit includes at least two infrared detectors and an X-ray detector, the infrared detectors are respectively disposed on an upper edge and a lower edge of the air outlet, the X-ray detector is located on a sidewall of the air deflector near the upper edge of the air outlet, when it is determined that condensation occurs through an infrared detection device, an area where condensation occurs is scanned by using X-rays, a scanned image of condensation is obtained, the scanned image is compared with a pre-stored standard image through a control unit, and an accurate size of condensation is determined according to a comparison result; when a plurality of condensation images exist in the scanned image, the single condensation image is compared, and then the average value is used as the accurate size of the condensation. The step S31 includes: s311, calculating and judging whether the condensation size X is larger than or equal to L A If yes, go to step S312; if not, the air conditioner is in a non-condensation state, wherein L A A first size threshold; s312, determining a region to be scanned according to the condensation generating position; s313, scanning the scanning area by adopting X-rays to obtain a scanning image of condensation; and S314, comparing the scanned condensed dew image with the stored standard image to determine the accurate size of the condensed dew.
In the air conditionerExecuting a normal operation mode when no condensation state exists; when the air conditioner is in a slight condensation state, a first air scanning mode is executed, and the air deflector is controlled to rotate at a first air guiding speed V Guide 1 With moving or sweeping blades at a first sweeping wind speed V Broom (1) An action; when the air conditioner is in a serious condensation state, a second air sweeping mode is executed, and the air deflector is controlled to rotate at a second air deflecting speed V Lead 2 Acting and/or sweeping blades at a second sweeping speed V Broom (2) Act and close the window, wherein V Lead 1 ＜V Lead 2 ，V Broom 1 ＜V Broom (2) . When the size of the condensation is small, the air deflector or the air sweeping blade is adjusted at a small angular speed to slow down the generation of the condensation, and meanwhile, the air supply effect of the air conditioner and the habit of a user are ensured; and when the condensation size is larger and continuously increased, the air deflector and/or the wind sweeping blade are adjusted at a larger angular speed, and meanwhile, a prompt is given to a user to close the window. The air outlet airflow can be frequently changed by adjusting the sweeping speed and/or the air guide speed, cold and hot air is destroyed to be gathered at the air outlet for a long time, the temperature difference of the condensation position is easy to appear on the periphery of the air outlet, and therefore the condensation problem of the air outlet is thoroughly solved on the premise that the refrigeration effect is not influenced completely.
Where Δ t 1 Is 5-15min, and has gel size L A 、L B Respectively 1.7-2.3mm, 3.8-4.2mm and V Lead 1 、V Guide 2 、V Broom 1 、V Broom (2) Respectively 5-9 degrees/s, 14-18 degrees/s, 8-12 degrees/s and 20-24 degrees/s. In general, a longer time in the condensation-prone state leads to a gradual increase in the size of the condensation, Δ t 1 There was a significant change in the size of the condensation produced at 5-15min and the condensation generally did not drip. Preferably, the Δ t 1 Is 10min, gel size L A 、L B Respectively 2mm, 4mm and V Guide 1 、V Guide 2 、V Broom (1) 、V Broom 2 Respectively 7 °/s, 14 °/s, 10 °/s, 22 °/s.
Preferably, the prompt is that the air conditioner display lamp is in a first color in the normal mode, the display lamp is in a second color in the first wind sweeping mode, and the display lamp is in a third color in the second wind sweeping mode. Preferably, the first color, the second color and the third color are green, yellow and red respectively; when the display is red, the user is reminded to close the window so as to gradually reduce the indoor humidity and the indoor temperature, so that the temperature difference between the indoor air at the air outlet and the low-temperature air outlet flow is reduced, condensation is reduced, and the condensation is prevented from being continuously increased. Of course, the user may be prompted to close the window by a buzzer generated by the air conditioner or by a combination of a buzzer and a display lamp.
Example 2
As shown in fig. 3, a control method for preventing condensation of an internal machine includes: s1, starting, and detecting the boundary position N of the air outlet by using the detection unit 5 1 In which N is 1 The distance between the upper edge and the lower edge of the air outlet on the same section is defined as the distance between the upper edge and the lower edge of the air outlet on the same section; s2, judging whether the air conditioner operates in a refrigeration or dehumidification mode; if yes, entering step S3; if not, the operation is normal; s3, detecting the boundary position N of the air outlet after running for 12min 2 And calculating the condensation size X, wherein X = N 1 -N 2 (ii) a S4, judging whether the size X of the condensation is less than or equal to L A If so, the air conditioner is in a condensation-free state and continues to operate normally, and the condensation display lamp is green; if not, performing step S5; s5, judging whether the size X of the condensation is less than or equal to L B If yes, the air conditioner is in a slight condensation state, a first wind sweeping mode is executed, the wind sweeping speed of the wind sweeping blades is controlled to be 10 degrees/s, and a condensation display lamp is yellow; if not, the air conditioner is in a serious condensation state, a second wind sweeping mode is executed, the wind sweeping speed of the wind sweeping blades is controlled to be 22 degrees/s, and a condensation display lamp is red, so that a user is prompted to close the window; wherein L is A 、L B Respectively represent a first size threshold and a second size threshold, and are 2mm and 4mm; preferably, the second wind sweeping mode further comprises controlling the wind deflector to guide wind at 15 °/s.
The air flow at the air outlet can be frequently changed by adjusting the air sweeping/guiding speed, the cold and hot air is damaged to be gathered at the air outlet for a long time, and the temperature difference at the air outlet is reduced to avoid condensation; simultaneously under the condensation serious condition, remind the user to close the window, can reduce indoor temperature, humidity after closing the window gradually, reduce the high temperature and high humidity air current and assemble in a large number at the air outlet, prevent that the condensation from continuing to increase, whole process can not reduce the refrigeration performance of air conditioner, satisfies the refrigeration demand, and user experience is good.
As shown in fig. 4, the present invention further provides an indoor unit condensation control device, which includes a detection unit disposed on an upper edge or a lower edge of the air outlet and used for detecting positions of the upper edge and the lower edge of the air outlet; the calculation unit is used for calculating the boundary distance according to the positions of the upper edge and the lower edge and calculating the size of condensation according to the boundary distance before and after refrigeration or dehumidification; a judging unit for judging whether the air conditioner is in a cooling or dehumidifying mode, and judging whether the condensation size X is relative to a first size threshold L A A second size threshold L B The size of (d); and the control unit is used for controlling the air conditioner to adjust the rotating angular speeds of the air deflector and the wind sweeping blade according to the judgment result of the judgment unit. The upper edge and the lower edge of the air outlet can be identified through the detection unit, and the boundary distance of the air outlet is further detected. Those skilled in the art will appreciate that the units or steps of the invention described above can be implemented by a general purpose computing device, they can be centralized on a single computing device or distributed across a network of multiple computing devices, and optionally, they can be implemented by program code that is executable by a computing device, such that it can be stored in a memory device and executed by a computing device, or it can be fabricated as separate integrated units, or it can be fabricated by multiple units or steps of them as a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software
The invention also provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the control method for preventing condensation of the internal machine.
The invention also provides a computer readable storage medium, which stores a computer program, and when the computer program is read and run by a processor, the control method for preventing condensation of the internal machine is realized.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The control method for preventing condensation of the internal machine is characterized in that the boundary distance N of an air port is detected, the condensation size X is calculated, the air sweeping speed and/or the air guiding speed of the air conditioner are/is adjusted according to the condensation size, and the boundary distances of an air outlet before and after refrigeration or dehumidification are respectively N 1 、N 2 And X = N 1 -N 2 (ii) a The method comprises the following steps:
s1, detecting boundary distance N of air outlet by using detection unit 1 The detection unit is used for infrared detection;
s2, when the air conditioner operates in a refrigeration or dehumidification mode, every delta t 1 Determining boundary distance N of air outlet after time duration 2 ；
S3, calculating and judging whether the condensation size X is larger than or equal to L A If so, controlling the air conditioner to operate at a certain air sweeping and/or guiding speed, otherwise, controlling the air conditioner to be in a non-condensation state, wherein L A A first size threshold;
the step S3 comprises the following steps:
s31, calculating and judging whether the condensation size X is larger than or equal to L A If yes, go to step S32; if not, the air conditioner is in a non-condensation state, wherein L A Is a first size threshold;
s32, judging whether the condensation size X is larger than or equal to L B If so, controlling the air conditioner to operate in a second air sweeping mode, wherein the air conditioner is in a serious condensation state; if not, go to step S33;
s33, the air conditioner is in a light condensation state, and the air conditioner is controlled to operate in a first air scanning mode, wherein L B Is a second size threshold, and L A ＜L B 。
2. The control method for preventing condensation of the internal machine according to claim 1, characterized in that when the air conditioner is in a condensation-free state, a normal operation mode is executed; when the air conditioner is in a slight condensation state, executing a first air scanning mode to control the air guideThe plate is guided at a first wind guiding speed V Guide 1 With moving or sweeping blades at a first sweeping wind speed V Broom (1) An action; when the air conditioner is in a serious condensation state, a second air sweeping mode is executed, and the air deflector is controlled to rotate at a second air deflecting speed V Guide 2 Moving and/or sweeping blades at a second sweeping speed V Broom 2 Act and prompt, wherein V Guide 1 ＜V Guide 2 ，V Broom 1 ＜V Broom (2) 。
3. The internal machine anti-condensation control method according to claim 2, characterized in that Δ t 1 Is 5-15min, and has gel size L A 、L B Respectively 1.7-2.3mm, 3.8-4.2mm and V Guide 1 、V Guide 2 、V Broom (1) 、V Broom 2 Respectively 5-9 degrees/s, 14-18 degrees/s, 8-12 degrees/s and 20-24 degrees/s.
4. The control method for preventing condensation in an internal machine according to claim 2, wherein the prompt is: the air conditioner display lamp is in a first color in the normal mode, the display lamp is in a second color in the first wind sweeping mode, and the display lamp is in a third color in the second wind sweeping mode.
5. An indoor unit condensation control device for realizing the control method of indoor unit condensation prevention according to any one of claims 1 to 4, which is characterized by comprising a detection unit, a condensation detection unit and a condensation detection unit, wherein the detection unit is arranged on the upper edge or the lower edge of an air outlet and is used for detecting the positions of the upper edge and the lower edge of the air outlet; the calculation unit is used for calculating the boundary distance according to the positions of the upper edge and the lower edge and calculating the size of condensation according to the boundary distance before and after refrigeration or dehumidification; a judging unit for judging whether the air conditioner is in a cooling or dehumidifying mode, and judging whether the condensation size X is relative to a first size threshold L A A second size threshold L B The size of (d); and the control unit is used for controlling the air conditioner to adjust the rotating angular speeds of the air deflector and the wind sweeping blade according to the judgment result of the judgment unit.
6. An air conditioner, comprising a processor and a computer-readable storage medium storing a computer program, which when read and executed by the processor, implements the control method for preventing condensation of an internal unit according to any one of claims 1 to 4.
7. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when read and executed by a processor, implements the control method for internal machine anti-condensation according to any one of claims 1 to 4.
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| CN203824979U (en) * | 2014-01-13 | 2014-09-10 | 南京信息工程大学 | Dew condensation monitor |
| CN104060933A (en) * | 2014-03-13 | 2014-09-24 | 苏州天趣信息科技有限公司 | Door window using infrared rays to detect on-off state |
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