CN114484846A - Wall-mounted air conditioner and condensation treatment method thereof - Google Patents

Wall-mounted air conditioner and condensation treatment method thereof Download PDF

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Publication number
CN114484846A
CN114484846A CN202210165822.XA CN202210165822A CN114484846A CN 114484846 A CN114484846 A CN 114484846A CN 202210165822 A CN202210165822 A CN 202210165822A CN 114484846 A CN114484846 A CN 114484846A
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China
Prior art keywords
humidity
water absorption
air conditioner
filter screen
absorption state
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CN202210165822.XA
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Chinese (zh)
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CN114484846B (en
Inventor
房玉博
宋力钊
程惠鹏
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Wuhan Haier Electric Appliance Co ltd
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Wuhan Haier Electric Appliance Co ltd
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Priority to CN202210165822.XA priority Critical patent/CN114484846B/en
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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • 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
    • 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
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F2013/228—Treatment of condensate, e.g. sterilising

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a wall-mounted air conditioner and a condensation treatment method thereof, which can be used for automatically and efficiently treating condensation at an air outlet of the air conditioner. The method comprises the following steps: arranging a water-absorbing filter screen in an indoor unit of an air conditioner, wherein the water-absorbing filter screen extends from the upper edge of an air outlet of the indoor unit to an air inlet of the indoor unit; and when the air conditioner operates in a refrigeration initial mode or a dehumidification initial mode, acquiring the humidity of the water absorption filter screen, and controlling the air conditioner based on the humidity of the water absorption filter screen to realize at least the treatment of condensation generated on the upper edge of the air outlet.

Description

Wall-mounted air conditioner and condensation treatment method thereof
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to a wall-mounted air conditioner and a condensation treatment method thereof.
Background
When the wall-mounted air conditioner operates in a refrigeration mode or a dehumidification mode, the indoor heat exchanger serves as an evaporator and exchanges heat with indoor return air to absorb heat of the indoor return air, so that the indoor return air is changed into cold air with low temperature and then is blown out from an air outlet of an indoor unit, and the purpose of reducing the indoor temperature is achieved.
And cold air is blown out from the air outlet, so that the temperature at the air outlet is lower. When the temperature at the air outlet is lower than the dew point temperature corresponding to the current environment temperature, condensation can be generated around the air outlet. When the condensation is gathered to a certain amount, the condensation drips onto the ground or other objects below the air conditioner from the air outlet, influences are caused to users, the users easily complain about the condensation, and the comfort experience of the use of the air conditioner is reduced.
In the prior art, in order to treat condensation generated at the air outlet, a water absorption part is generally adhered at the air outlet to absorb the generated condensation. However, the water absorbing member is difficult to evaporate in time after absorbing water, and when the water absorbing state reaches a saturated state, if manual cleaning is not performed in time, the condensation drops. And the manual cleaning of condensation on the water absorption component or the replacement of the water absorption component causes troublesome operation and causes further complaints of users. Therefore, the prior condensation treatment technology is difficult to obtain a more ideal condensation treatment effect.
Disclosure of Invention
The invention aims to provide a wall-mounted air conditioner and a condensation treatment method thereof, which can be used for automatically and efficiently treating condensation at an air outlet of the air conditioner.
In order to achieve the purpose, the condensation treatment method of the wall-mounted air conditioner provided by the invention is realized by adopting the following technical scheme:
a condensation processing method of a wall-mounted air conditioner comprises the following steps:
arranging a water-absorbing filter screen in an indoor unit of an air conditioner, wherein the water-absorbing filter screen extends from the upper edge of an air outlet of the indoor unit to an air inlet of the indoor unit; and
when the air conditioner runs in a refrigeration initial mode or a dehumidification initial mode, the humidity of the water absorption filter screen is acquired, and at least the treatment of condensation generated on the upper edge of the air outlet is realized on the basis of the humidity control air conditioner with the water absorption filter screen.
In some embodiments of this application, acquire the humidity of hydroscopicity filter screen, based on the humidity control air conditioner of hydroscopicity filter screen realizes at least right the processing of the condensation of the last edge production of air outlet specifically includes:
acquiring humidity of a plurality of positions on the water-absorbing filter screen, which are different from the upper edge of the air outlet in distance;
determining the water absorption state of the water-absorbing filter screen according to the humidity at each position;
and controlling the air conditioner according to the water absorption state to realize the treatment of condensation generated at least on the upper edge of the air outlet.
In some embodiments of this application, acquire distance on the hydroscopicity filter screen the humidity of the different a plurality of positions of distance department on the last edge of air outlet is confirmed according to the humidity of every position department the water absorption state of hydroscopicity filter screen, according to water absorption state control air conditioner specifically includes:
acquiring first humidity at a first position, second humidity at a second position and third humidity at a third position on the water-absorbing filter screen; the distances from the first position, the second position and the third position to the upper edge of the air outlet are sequentially increased;
when the first humidity, the second humidity and the third humidity are all smaller than a known humidity threshold value, determining that the water absorption state is a first water absorption state, and controlling the air conditioner by adopting a first control mode corresponding to the first water absorption state;
when the first humidity is not smaller than the known humidity threshold value and the second humidity and the third humidity are both smaller than the known humidity threshold value, determining that the water absorption state is a second water absorption state, and controlling the air conditioner by adopting a second control mode corresponding to the second water absorption state;
when the first humidity and the second humidity are not smaller than the known humidity threshold value and the third humidity is smaller than the known humidity threshold value, determining that the water absorption state is a third water absorption state, and controlling the air conditioner by adopting a third control mode corresponding to the third water absorption state;
and when the first humidity, the second humidity and the third humidity are not less than the known humidity threshold value, determining that the water absorption state is a fourth water absorption state, and controlling the air conditioner by adopting a fourth control mode corresponding to the fourth water absorption state.
In some embodiments of the present application, the method further comprises:
and when the time for controlling the air conditioner to operate by adopting the fourth control mode reaches the set operation time, exiting the fourth control mode, and then controlling the air conditioner to operate again in the refrigeration initial mode or the dehumidification initial mode.
In some embodiments of the present application, the first control mode is the cooling initial mode or the dehumidifying initial mode;
the second control mode includes: reducing the running frequency of the compressor of the air conditioner;
the third control mode includes: controlling the compressor of the air conditioner to run at the lowest allowable frequency, and simultaneously increasing the running rotating speed of an indoor fan of the air conditioner;
the fourth control mode includes: and controlling the outdoor unit of the air conditioner to stop, controlling the indoor fan to operate at the maximum allowable rotating speed, and simultaneously starting an electric heating device of the indoor unit.
In some embodiments of the present application, the second control mode further comprises: controlling the running frequency of the compressor to be not less than the lowest allowable frequency;
the third control mode further includes: and controlling the running rotating speed of the indoor fan not to be higher than the allowable maximum rotating speed.
In order to achieve the purpose, the wall-mounted air conditioner provided by the invention adopts the following technical scheme:
a wall-mounted air conditioner comprising an indoor unit, the indoor unit comprising:
a water-absorbing filter net formed in the indoor unit and configured to extend from an upper edge of an air outlet of the indoor unit to an air inlet of the indoor unit;
the humidity detection device is used for detecting the humidity of the water-absorbing filter screen;
the controller is configured to acquire the humidity of the water absorption filter screen when the air conditioner is controlled to operate in a refrigeration initial mode or a dehumidification initial mode, and the air conditioner is controlled based on the humidity of the water absorption filter screen to realize at least treatment of condensation generated on the upper edge of the air outlet.
In some embodiments of the present application, the humidity detection devices are multiple and are respectively disposed at multiple positions on the water-absorbing filter screen, which are different from the upper edge of the air outlet;
the controller is specifically configured to: acquiring humidity of a plurality of positions with different distances from the upper edge of the air outlet on the water absorption filter screen, determining the water absorption state of the water absorption filter screen according to the humidity of each position, and controlling the air conditioner according to the water absorption state to realize at least treatment of condensation generated on the upper edge of the air outlet.
In some embodiments of the present application, the number of the humidity detection devices is three, and the humidity detection devices are respectively disposed at a first position, a second position and a third position on the water-absorbing filter screen, and distances from the first position, the second position and the third position to an upper edge of the air outlet are sequentially increased;
the controller is specifically configured to:
acquiring first humidity at a first position, second humidity at a second position and third humidity at a third position on the water-absorbing filter screen;
when the first humidity is not smaller than the known humidity threshold value and the second humidity and the third humidity are both smaller than the known humidity threshold value, determining that the water absorption state is a second water absorption state, and controlling the air conditioner by adopting a second control mode corresponding to the second water absorption state;
when the first humidity and the second humidity are not smaller than the known humidity threshold value and the third humidity is smaller than the known humidity threshold value, determining that the water absorption state is a third water absorption state, and controlling the air conditioner by adopting a third control mode corresponding to the third water absorption state;
and when the first humidity, the second humidity and the third humidity are not less than the known humidity threshold value, determining that the water absorption state is a fourth water absorption state, and controlling the air conditioner by adopting a fourth control mode corresponding to the fourth water absorption state.
In some embodiments of the present application, the upper edge of the air outlet is configured to be gradually inclined downwards from two end portions to a middle portion, and the middle portion of the upper edge is closer to a lower edge of the air outlet opposite to the upper edge of the air outlet relative to the two end portions of the upper edge.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a wall-mounted air conditioner and a condensation processing method thereof.A water-absorbing filter screen extending from the upper edge of an air outlet of an indoor unit to an air inlet of the indoor unit is arranged in an indoor unit of the air conditioner, and the water-absorbing filter screen is used as an air inlet filter screen and can absorb condensation generated by the upper edge of the air outlet due to water absorption, so that the water absorbed by the unit area of the filter screen is less due to large area of the filter screen, and the water on the filter screen can be dried and evaporated when the air inlet passes through the filter screen, therefore, the problems that the condensation absorption processing is not thorough and the condensation still exists at the air outlet due to the fact that the filter screen absorbs water and is saturated and can not absorb the condensation are not easy to occur, and the condensation processing efficiency at the air outlet is improved; moreover, the filter screen has certain humidity after absorbing water, so that dust in the inlet air can be better blocked, and the effect of purifying air is achieved; meanwhile, the air conditioner is automatically controlled based on the humidity of the water-absorbing filter screen, the working mode of the air conditioner is automatically adjusted according to the water absorbing condition of the water-absorbing filter screen, the matching between the water absorption of the filter screen and the condensation amount and the air inlet efficiency of the air conditioner is realized, a better condensation treatment effect is obtained on the basis of not disassembling and replacing the filter screen, and the intelligent performance of the air conditioner is improved.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of one embodiment of a wall-mounted air conditioner of the present invention;
FIG. 2 is a perspective view of a portion of the wall-mounted air conditioner of the embodiment of FIG. 1;
FIG. 3 is a perspective view of another portion of the wall-mounted air conditioner of the embodiment of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the wall-mounted air conditioner of the embodiment of FIG. 1;
FIG. 5 is a schematic flow chart illustrating a method for treating condensation in a wall-mounted air conditioner according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating a method for treating condensation of a wall-mounted air conditioner according to another embodiment of the present invention;
in the above figures, the reference numerals and their corresponding part names are as follows:
100. an indoor unit;
11. a front panel; 12. a housing; 13. a guide plate; 14. an air inlet; 15. an air outlet; 151. the upper edge of the air outlet; 152. the lower edge of the air outlet; 16. filtering with a screen; 17. a heat exchanger; 18. an indoor fan; 191. a first humidity detection device; 192. a second humidity detection device; 193. and a third humidity detection device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third", "fourth", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first," "second," "third," "fourth," etc. may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It should be noted that the technical solutions in the embodiments of the present invention may be combined with each other, but 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 and not within the protection scope of the present invention.
Embodiments described below provide a wall-mounted air conditioner that performs a cooling and heating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The cooling and heating cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.
The refrigeration working principle of the air conditioner is as follows: the compressor works to enable the interior of the indoor heat exchanger (in the indoor unit, the evaporator at the moment) to be in an ultralow pressure state, liquid refrigerant in the indoor heat exchanger quickly evaporates and absorbs heat, and air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger and then becomes cold air to be blown into the room. The evaporated and gasified refrigerant is pressurized by the compressor, condensed into a liquid state in a high-pressure environment in an outdoor heat exchanger (in an outdoor unit, a condenser at the moment), releases heat, and is dissipated to the atmosphere through an outdoor fan, so that the refrigeration effect is achieved by circulation.
The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at the moment), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, so that the aim of increasing the indoor temperature is fulfilled. The liquid refrigerant is decompressed by the throttling device, enters the outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs the heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.
The invention provides a wall-mounted air conditioner and a condensation treatment method thereof, aiming at the technical problem of poor condensation treatment effect of the existing wall-mounted air conditioner caused by adopting a water absorption part adhered to an air outlet to treat condensation generated by the air outlet. The filter screen has the function of filtering airflow entering the indoor unit and also has the function of absorbing condensation on the upper edge of the air outlet, and the technical effect of completing two functions by using one component is achieved. Moreover, the water absorption filter screen has large absorption area and strong water absorption capacity, and simultaneously, the air conditioner is controlled based on the humidity of the filter screen, thereby obtaining the technical effect of automatically and efficiently treating the condensation at the air outlet of the air conditioner.
Fig. 1 to 4 show an embodiment of a wall-mounted type air conditioner of the present invention, specifically, an embodiment of an indoor unit of the air conditioner. Fig. 1 is a schematic perspective view of the embodiment, fig. 2 and fig. 3 are schematic perspective views of partial structures, respectively, and fig. 4 is a schematic sectional view of the embodiment.
As shown in fig. 1 to 4, an indoor unit 100 of a wall-mounted air conditioner includes a front panel 11 and a casing 12, and the casing 12 defines an inner cavity of the indoor unit 100. An air inlet 14 and an air outlet 15 of the indoor unit 100 are formed on the casing 12, and a heat exchanger 17 and an indoor fan 18 are disposed in an inner cavity of the indoor unit 100. Typically, the indoor fan 18 is a crossflow fan, but is not so limited. Generally, the intake vent 14 is formed above the housing 12, and the exhaust vent 15 is formed at the front lower portion of the housing 12. The front panel 11 covers the housing 12 and is located between the air inlet 14 and the air outlet 15. The outlet 15 has an outlet upper edge 151 and an outlet lower edge 152, and a guide plate 13 is provided on the outlet 15. When the guide plate 13 is closed, the air outlet 15 is closed; when air supply is required, the guide plate 13 opens the air outlet 15. Generally, the upper edge 151 of the outlet is formed by the edge of the casing 12 and the edge of the front panel 11, and the lower edge 152 of the outlet is formed by the edge of the casing 12.
Other components included in the indoor unit 100, as well as the positional relationship, the assembly relationship, and the like between the components, are not described in detail herein, using the prior art.
The indoor unit 100 further includes a filter 16 extending from the upper edge 151 of the outlet to the inlet 14 to the edge of the inlet 14 away from the outlet 15. The filter 16 is a water-absorbing filter having a water-absorbing function. The water absorbing filter 16 can be realized by a filter having both a water absorbing function and a filtering function in the prior art.
By providing this filter screen 16, on the one hand, it has a filtering function, and is used as a filter screen for filtering the intake air. Under the action of the indoor fan 18, indoor airflow enters the indoor unit 100 from the air inlet 14, flows to the heat exchanger 17 after being filtered by the filter screen 16, exchanges heat with the heat exchanger 17, and is sent out from the air outlet 15 after heat exchange, so that the purpose of adjusting indoor air is achieved. On the other hand, the screen 16 has a water absorbing function, and can absorb condensation generated at the upper edge 151 of the air outlet, and moisture of the absorbed condensation spreads from the lower side of the upper edge 151 of the screen 16 close to the air outlet to the upper side of the air inlet 14. The screen 16 has a large area, and therefore has a high water absorbing capacity, and the absorbed water is dispersed over the surface of the screen 16, so that the screen 16 absorbs a small amount of water per unit area. Furthermore, when the indoor airflow passes through the filter screen 16, the moisture on the filter screen 16 can be dried, so that the moisture is evaporated. Therefore, the problems that the condensation cannot be absorbed due to water saturation of the filter screen 16, the condensation absorption treatment is not thorough, and the condensation drops at the air outlet are still solved, and the treatment efficiency of the condensation at the air outlet 15 is improved. The filter screen has certain humidity after absorbing water, can better block dust in the inlet air, and achieves the effect of purifying air.
To facilitate collection and absorption of the condensation by the screen 16, as shown in fig. 2, the upper edge 151 of the outlet is configured to have a structure gradually inclined downward from the two end portions to the middle portion, i.e., gradually inclined downward from the end portion a to the middle portion c and gradually inclined downward from the end portion b to the middle portion c, so that the middle portion c is closer to the lower edge 152 of the outlet relative to the two end portions a and b, and the upper edge 151 of the outlet has a V-shaped structure. It should be understood that when the upper edge 151 of the air outlet is formed by the edge of the casing 12 and the edge of the front panel 11, the edges of the casing 12 and the front panel 11 are both in a V-shaped structure, as illustrated in fig. 1 and 2.
However, the condensation at the air outlet 15 is treated only by water absorption and evaporation of the filter screen 16, and when the condensation is large, the problem that the condensation still drops due to insufficient water absorption capacity and the problem that the air intake efficiency is affected due to the fact that the moisture absorbed by the filter screen 16 cannot evaporate in time still exist. Therefore, the embodiment further provides a humidity detection device and a controller (not shown in the figure), the humidity detection device is used for detecting the humidity of the filter screen 16, when the controller controls the air conditioner to operate in the refrigeration initial mode or the dehumidification initial mode, condensation may be generated at the air outlet 15 in the process, the controller obtains the humidity of the water-absorbing filter screen, and the air conditioner is controlled based on the humidity of the water-absorbing filter screen, so that the condensation generated at least on the upper edge of the air outlet is processed.
Through setting up humidity detection device and controller to dispose its function, based on the humidity automatic control air conditioner of hydroscopicity filter screen 16, reach the mode of operation according to the water absorption condition automatic adjustment air conditioner of hydroscopicity filter screen 16, realize the matching between the hydroscopicity of filter screen 16 and condensation volume, the air conditioner air inlet efficiency, obtain the condensation treatment effect of preferred on the basis that need not to dismantle change filter screen 16, improve the intelligent performance of air conditioner.
In a preferred embodiment, the humidity detection device is provided in plural, and is respectively provided at plural positions on the filter screen 16 at different distances from the upper edge 151 of the air outlet. Accordingly, the controller is specifically configured to: the humidity of a plurality of positions on the filter screen 16, which are different from the distance of the upper edge 151 of the air outlet, is obtained, the water absorption state of the filter screen 16 is determined according to the humidity of each position, the air conditioner is controlled according to the water absorption state, and the treatment of condensation generated on the upper edge 151 of the air outlet at least is realized.
This embodiment is provided as one example, in which three humidity detection means are provided, namely, a first humidity detection means 191, a second humidity detection means 192, and a third humidity detection means 193, and the three humidity detection means are provided at a first position, a second position, and a third position on the sieve 16, respectively. Wherein, the distances from the first position, the second position and the third position to the upper edge 151 of the air outlet are increased in sequence. In fig. 2, the first humidity detection device 191, the second humidity detection device 192, and the third humidity detection device 193 are sequentially disposed on the screen 16 from bottom to top at intervals.
More specific and detailed control of the condensation process is performed based on the humidity detected by the three humidity detection means, with reference to the following description of method embodiments.
Fig. 5 is a flowchart illustrating a method for treating condensation of a wall-mounted air conditioner according to an embodiment of the present invention.
The wall-mounted air conditioner of this embodiment has a water-absorbing filter screen disposed in the indoor unit, and the water-absorbing filter screen extends from the upper edge of the air outlet of the indoor unit to the air inlet of the indoor unit. When the air conditioner operates in a refrigeration initial mode or a dehumidification initial mode, condensation is easily generated at the air outlet, the humidity of the water absorption filter screen is acquired, the air conditioner is controlled based on the humidity of the water absorption filter screen, and at least treatment of the condensation generated on the upper edge of the air outlet is realized. Here, the cooling initial mode or the dehumidifying initial mode is a normal cooling mode or a dehumidifying mode regardless of the air conditioner performing the condensation process using the filter.
In this embodiment, the humidity of the water-absorbing filter screen is obtained, and the air conditioner is controlled based on the humidity of the water-absorbing filter screen by adopting the following processes:
step 21: humidity at a plurality of positions on the water-absorbing filter screen is acquired.
Wherein, a plurality of positions are a plurality of positions on the filter screen that the distance from the upper edge of the air outlet is different.
Step 22: and determining the water absorption state of the filter screen according to the humidity at each position.
As described in the structural embodiment of the wall-mounted air conditioner, the condensed water molecules absorbed by the filter screen stretch from the lower side of the upper edge of the air outlet to the upper side of the air inlet, and the humidity at the position on the filter screen, which is different from the upper edge of the air outlet, can reflect the water absorption area of the filter screen, thereby reflecting the water absorption state of the filter screen. Generally, when the humidity at a position farther from the upper edge of the outlet reaches a predetermined humidity value, the larger the suction area of the screen, the larger the suction state of the screen, or the larger the suction amount of the screen.
Step 23: and controlling the air conditioner according to the water absorption state.
The water absorption state is used for reflecting the water absorption capacity of the filter screen, and further reflecting the generation amount of condensation, the air inlet efficiency of the filter screen and the like. Then, according to the state control air conditioner that absorbs water, through predetermineeing reasonable state of absorbing water and the matching relation of air conditioner control strategy, then can realize the balance between filter screen hydroscopicity and condensation volume, the air conditioner air inlet efficiency, obtain the balance of the original conventional function of better condensation treatment effect and air conditioner, improve the intelligent performance of air conditioner.
Fig. 6 is a flowchart illustrating a method for treating condensation of a wall-mounted air conditioner according to another embodiment of the present invention.
The wall-mounted air conditioner of this embodiment has a water-absorbing filter screen disposed in the indoor unit, and the water-absorbing filter screen extends from the upper edge of the air outlet of the indoor unit to the air inlet of the indoor unit. When the air conditioner operates in a refrigeration initial mode or a dehumidification initial mode, condensation is easily generated at the air outlet, the humidity of the water absorption filter screen is acquired, the air conditioner is controlled based on the humidity of the water absorption filter screen, and at least treatment of the condensation generated on the upper edge of the air outlet is realized. Here, the cooling initial mode or the dehumidifying initial mode is a normal cooling mode or a dehumidifying mode of the air conditioner in which the condensation process is not performed by using the filter.
Moreover, the humidity detection devices are respectively arranged at three positions on the filter screen, the distances from the first position, the second position and the third position to the upper edge of the air outlet are sequentially increased, and the specific structure can refer to fig. 2.
In this embodiment, the humidity of different positions of the water-absorbing filter screen is obtained, and the air conditioner is controlled based on the humidity of each position by adopting the following processes:
step 31: acquiring three humidities at three positions on the water-absorbing filter screen, and determining the water absorbing state of the filter screen according to the three humidities.
The humidity at the first location is a first humidity, the humidity at the second location is a second humidity, and the humidity at the third location is a third humidity.
The air conditioner is preset with the corresponding relation between the humidity of three positions and the water absorption state of the filter screen. The specific correspondence is as follows:
and if the first humidity, the second humidity and the third humidity are all smaller than the known humidity threshold value, determining that the water absorption state is the first water absorption state. The first water absorption state is a state in which the water absorption capacity of the filter screen is extremely small. The humidity of the three positions is smaller than the known humidity threshold value, which indicates that the water absorption capacity of the filter screen is very small, and no condensation is generated at the air outlet or very little condensation is generated.
And if the first humidity is not less than the known humidity threshold value and the second humidity and the third humidity are both less than the known humidity threshold value, determining that the water absorption state is a second water absorption state. The second water absorption state is a state that the filter screen has a certain water absorption capacity. The first humidity is not less than the known humidity threshold, but the second humidity and the third humidity are less than the known humidity threshold, indicating that the filter screen has absorbed moisture at least in a portion between the first location and the outlet vent, and the outlet vent has generated an amount of condensation.
And if the first humidity and the second humidity are not less than the known humidity threshold value and the third humidity is less than the known humidity threshold value, determining that the water absorption state is a third water absorption state. The third absorption state represents a state in which the filter net absorbs water in an amount higher than that in the second absorption state, and is a state in which the filter net has a medium water absorption amount. The first humidity and the second humidity are not smaller than the known humidity threshold value, but the third humidity is smaller than the known humidity threshold value, which indicates that the part of the filter screen between the second position and the air outlet absorbs moisture, and the air outlet generates more condensation.
And if the first humidity, the second humidity and the third humidity are not less than the known humidity threshold value, determining that the water absorption state is a fourth water absorption state. The third coefficient state is the state of the filter screen with saturated water absorption capacity. The humidity of the three positions is not less than the known humidity threshold value, which indicates that the whole filter screen basically absorbs the water and the filter screen is in a state of saturated water absorption capacity.
In the above correspondence, the known humidity threshold value may be a fixed value. In order to reflect the water absorption state of the filter screen more accurately and realize more accurate and reasonable regulation and control of the air conditioner, the known humidity threshold value is preferably a dynamic change value and is a humidity threshold value determined in real time according to the temperature and/or the humidity of the indoor environment where the indoor unit is located.
Step 32: and judging whether the water absorption state is the first water absorption state or not. If yes, go to step 33; otherwise, go to step 34.
Specifically, whether the current water absorption state of the filter screen is the first water absorption state is judged based on the acquired humidity of the three positions and the corresponding relation between the humidity and the water absorption state of the filter screen, and different control is executed according to the judgment result.
Step 33: the air conditioner is controlled using a first control mode.
And if the current water absorption state of the filter screen is judged to be the first water absorption state, the air conditioner is controlled by adopting a first control mode.
The first control mode is a preset control mode corresponding to the first water absorption state.
As a preferred embodiment, the first control mode is a cooling initial mode or a dehumidifying initial mode. That is, when the water absorption state of the filter screen is the first water absorption state with extremely small water absorption amount, the condensation amount generated by the air outlet is less or even no condensation is generated, the filter screen hardly has the influence on the air inlet due to water absorption, and the original control mode of the air conditioner is kept unchanged so as to meet the realization of the normal control function of the air conditioner.
Step 34: and judging whether the water absorption state is the second water absorption state. If yes, go to step 35; otherwise, go to step 36.
And if the current water absorption state is not the first water absorption state, further judging whether the current water absorption state of the filter screen is the second water absorption state, and executing different controls according to the judgment result.
Step 35: and controlling the air conditioner by adopting a second control mode.
And if the current water absorption state of the filter screen is judged to be the second water absorption state, the air conditioner is controlled by adopting a second control mode.
The second control mode is a preset control mode corresponding to the second water absorption state.
As a preferred embodiment, the second control mode includes: the running frequency of the compressor of the air conditioner is reduced. That is, when the water absorption state of the filter screen is the second water absorption state having a certain water absorption amount, the air outlet generates a certain condensation. Under this condition, will reduce compressor operating frequency, reduce the system refrigeration volume, slow down the air outlet condensation and produce speed, avoid causing the filter screen water absorption volume to reach the saturation excessively fast and cause the condensation can not in time absorb water the treatment, the filter screen can not in time evaporate the condensation and influence the emergence of the problem such as air inlet efficiency.
In some other preferred embodiments, the second control mode further includes: and controlling the running frequency of the compressor to be not less than the lowest allowable frequency. That is, although the operating frequency of the compressor is reduced, the operating frequency cannot be reduced too much, and the compressor is ensured to operate at the lowest allowable frequency, so that the stable and normal operation of the system is prevented from being influenced. The lowest allowable frequency is a known frequency value and can be determined based on the maximum torque transfer point of the compressor.
Step 36: and judging whether the water absorption state is the third water absorption state. If yes, go to step 37; otherwise, go to step 38.
If the step 34 determines that the current water absorption state is not the second water absorption state, it is further determined whether the current water absorption state of the filter screen is the third water absorption state, and different controls are executed according to the determination result.
Step 37: the air conditioner is controlled in a third control mode.
And if the current water absorption state of the filter screen is judged to be the third water absorption state, the air conditioner is controlled by adopting a third control mode.
The third control mode is a preset control mode corresponding to the third water absorption state.
As a preferred embodiment, the third control mode includes: the compressor of the air conditioner is controlled to run at the lowest allowable frequency, and simultaneously, the running rotating speed of the indoor fan of the air conditioner is increased. That is, when the water absorption state of the filter screen is a third water absorption state in which the water absorption capacity is greater than that in the second coefficient state, the air outlet generates more condensation. Under this condition, except that the control compressor moves with lower minimum frequency, reduce the system refrigeration volume, slow down the condensation and produce speed, still increase the operating speed of indoor fan, on the one hand for utilize the air inlet to evaporate the moisture on the filter screen, on the other hand, it is big because of the filter screen water absorption volume this moment, can influence air inlet efficiency, through increasing indoor fan operating speed, in order to compensate the decline of air inlet efficiency.
In some further preferred embodiments, the third control mode further comprises: the running rotating speed of the fan in the control room is not higher than the maximum allowable rotating speed, so that the stable and normal running of the system is prevented from being influenced.
Step 38: and controlling the air conditioner in a fourth control mode in a fourth water absorption state.
If it is determined in step 34 that the current water absorption state is not the third water absorption state and the second water absorption state or the first water absorption state is not obtained through the above determination process, it is determined that the current water absorption state of the filter is the fourth water absorption state. Then, the air conditioner is controlled using the fourth control mode.
The fourth control mode is a control mode preset corresponding to the fourth water absorption state.
As a preferred embodiment, the fourth control mode includes: and controlling the outdoor unit of the air conditioner to stop, controlling the indoor fan to operate at the allowed maximum rotating speed, and simultaneously starting an electric heating device of the indoor unit. That is, when the water absorption state of the filter screen is the fourth water absorption state in which the water absorption amount reaches the saturation state, the outdoor unit is stopped, the circulation of the refrigerant is stopped, and simultaneously, the indoor fan operates at a high speed, and the electric heating device of the indoor unit is opened to accelerate the evaporation of the water in the filter screen, thereby avoiding the problems of the condensation dripping, the serious influence on the efficiency and the like caused by excessive water in the filter screen, and simultaneously enabling the filter screen to have the capability of absorbing the condensation again.
The fourth control mode stops cooling, which is not in accordance with the regulation performance of the demand air conditioner, and therefore, the air conditioner is not suitable for long-time operation. In some other preferred embodiments, when the time for controlling the air conditioner to operate in the fourth control mode reaches the set operation time, the fourth control mode is exited, and then the air conditioner is controlled to operate again in the cooling initial mode or the dehumidifying initial mode. The set running time is a known time value, can be a preset fixed time value, and can also be a dynamic variable time value determined in real time according to the time running parameters and the environmental parameters of the air conditioner.
It should be understood that the process of the control flow shown in fig. 6 is to be cycled when the air conditioner is operating. In the process of controlling the air conditioner by adopting the first control mode, the second control mode or the third control mode, the processes of obtaining the humidity of the three positions, determining the water absorption state of the filter screen according to the humidity and determining the control mode according to the water absorption state are continuously executed.
In addition, the process of determining the water absorption state in the steps 32, 34 and 36 is executed in steps only for clearly showing the control process, and in the actual operation process, the water absorption state of the current filter screen can be determined at one time according to the three humidities and the corresponding relationship between the humidity and the water absorption state of the filter screen.
The method of each embodiment is adopted to execute the condensation treatment of the wall-mounted air conditioner, the water-absorbing filter screen can absorb the condensation generated at the upper edge of the air outlet due to the water absorption when being used as the air inlet filter screen, the water absorbed on the unit area of the filter screen is less due to the large area of the filter screen, and the water on the filter screen can be dried and evaporated when the air inlet passes through the filter screen, so that the problems that the condensation absorption treatment is not thorough and the condensation at the air outlet still drops due to the fact that the filter screen cannot absorb the condensation because of water saturation are not easy to occur, and the treatment efficiency of the condensation at the air outlet is improved; moreover, the filter screen has certain humidity after absorbing water, so that dust in the inlet air can be better blocked, and the effect of purifying air is achieved; meanwhile, the air conditioner is automatically controlled based on the humidity of the water-absorbing filter screen, the working mode of the air conditioner is automatically adjusted according to the water absorbing condition of the water-absorbing filter screen, the matching between the water absorption of the filter screen and the condensation amount and the air inlet efficiency of the air conditioner is realized, a better condensation treatment effect is obtained on the basis of not disassembling and replacing the filter screen, and the intelligent performance of the air conditioner is improved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding claims.

Claims (10)

1. A method for treating condensation of a wall-mounted air conditioner, the method comprising:
arranging a water-absorbing filter screen in an indoor unit of an air conditioner, wherein the water-absorbing filter screen extends from the upper edge of an air outlet of the indoor unit to an air inlet of the indoor unit; and
when the air conditioner runs in a refrigeration initial mode or a dehumidification initial mode, the humidity of the water absorption filter screen is acquired, and at least the treatment of condensation generated on the upper edge of the air outlet is realized on the basis of the humidity control air conditioner with the water absorption filter screen.
2. The method for treating condensation of a wall-mounted air conditioner according to claim 1, wherein the humidity of the water-absorbing filter screen is acquired, the air conditioner is controlled based on the humidity of the water-absorbing filter screen, and the treatment of condensation generated at least on the upper edge of the air outlet is realized, and specifically the method comprises the following steps:
acquiring humidity of a plurality of positions on the water-absorbing filter screen, which are different from the upper edge of the air outlet in distance;
determining the water absorption state of the water-absorbing filter screen according to the humidity at each position;
and controlling the air conditioner according to the water absorption state to realize the treatment of condensation generated at least on the upper edge of the air outlet.
3. The method for treating condensation of a wall-mounted air conditioner according to claim 2, wherein the method includes the steps of obtaining humidity at a plurality of positions on the water-absorbing filter screen at different distances from the upper edge of the air outlet, determining a water absorption state of the water-absorbing filter screen according to the humidity at each position, and controlling the air conditioner according to the water absorption state, and specifically includes:
acquiring first humidity at a first position, second humidity at a second position and third humidity at a third position on the water-absorbing filter screen; the distances from the first position, the second position and the third position to the upper edge of the air outlet are sequentially increased;
when the first humidity, the second humidity and the third humidity are all smaller than a known humidity threshold value, determining that the water absorption state is a first water absorption state, and controlling the air conditioner by adopting a first control mode corresponding to the first water absorption state;
when the first humidity is not less than the known humidity threshold value and the second humidity and the third humidity are both less than the known humidity threshold value, determining that the water absorption state is a second water absorption state, and controlling the air conditioner by adopting a second control mode corresponding to the second water absorption state;
when the first humidity and the second humidity are not smaller than the known humidity threshold value and the third humidity is smaller than the known humidity threshold value, determining that the water absorption state is a third water absorption state, and controlling the air conditioner by adopting a third control mode corresponding to the third water absorption state;
and when the first humidity, the second humidity and the third humidity are not less than the known humidity threshold value, determining that the water absorption state is a fourth water absorption state, and controlling the air conditioner by adopting a fourth control mode corresponding to the fourth water absorption state.
4. The method of claim 3, further comprising:
and when the time for controlling the air conditioner to operate by adopting the fourth control mode reaches the set operation time, exiting the fourth control mode, and then controlling the air conditioner to operate again in the refrigeration initial mode or the dehumidification initial mode.
5. The method of treating condensation of a wall-mounted air conditioner according to claims 3 and 4,
the first control mode is the cooling initial mode or the dehumidification initial mode;
the second control mode includes: reducing the running frequency of the compressor of the air conditioner;
the third control mode includes: controlling the compressor of the air conditioner to run at the lowest allowable frequency, and simultaneously increasing the running rotating speed of an indoor fan of the air conditioner;
the fourth control mode includes: and controlling the outdoor unit of the air conditioner to stop, controlling the indoor fan to operate at the maximum allowable rotating speed, and simultaneously starting an electric heating device of the indoor unit.
6. The method of treating condensation of a wall-mounted air conditioner according to claim 5,
the second control mode further includes: controlling the running frequency of the compressor to be not less than the lowest allowable frequency;
the third control mode further includes: and controlling the running rotating speed of the indoor fan not to be higher than the allowable maximum rotating speed.
7. A wall-mounted air conditioner, includes an indoor unit, characterized in that the indoor unit includes:
a water-absorbing filter net formed in the indoor unit and configured to extend from an upper edge of an air outlet of the indoor unit to an air inlet of the indoor unit;
the humidity detection device is used for detecting the humidity of the water-absorbing filter screen;
the controller is configured to acquire the humidity of the water absorption filter screen when the air conditioner is controlled to operate in a refrigeration initial mode or a dehumidification initial mode, and the air conditioner is controlled based on the humidity of the water absorption filter screen to realize at least treatment of condensation generated on the upper edge of the air outlet.
8. The wall-mounted air conditioner according to claim 7,
the humidity detection devices are arranged at a plurality of positions on the water absorption filter screen at different distances from the upper edge of the air outlet;
the controller is specifically configured to: acquiring humidity of a plurality of positions with different distances from the upper edge of the air outlet on the water absorption filter screen, determining the water absorption state of the water absorption filter screen according to the humidity of each position, and controlling the air conditioner according to the water absorption state to realize at least treatment of condensation generated on the upper edge of the air outlet.
9. The wall-mounted air conditioner according to claim 8,
the humidity detection devices are respectively arranged at a first position, a second position and a third position on the water-absorbing filter screen, and the distances from the first position, the second position and the third position to the upper edge of the air outlet are sequentially increased;
the controller is specifically configured to:
acquiring first humidity at a first position, second humidity at a second position and third humidity at a third position on the water-absorbing filter screen;
when the first humidity is not smaller than the known humidity threshold value and the second humidity and the third humidity are both smaller than the known humidity threshold value, determining that the water absorption state is a second water absorption state, and controlling the air conditioner by adopting a second control mode corresponding to the second water absorption state;
when the first humidity and the second humidity are not smaller than the known humidity threshold value and the third humidity is smaller than the known humidity threshold value, determining that the water absorption state is a third water absorption state, and controlling the air conditioner by adopting a third control mode corresponding to the third water absorption state;
and when the first humidity, the second humidity and the third humidity are not less than the known humidity threshold value, determining that the water absorption state is a fourth water absorption state, and controlling the air conditioner by adopting a fourth control mode corresponding to the fourth water absorption state.
10. The wall-mounted air conditioner according to any one of claims 7 to 9, wherein the upper edge of the outlet port is configured such that it gradually slopes downward from both end portions to a middle portion, and the middle portion of the upper edge is closer to a lower edge of the outlet port opposite to the upper edge of the outlet port with respect to both end portions of the upper edge.
CN202210165822.XA 2022-02-23 2022-02-23 Wall-mounted air conditioner and condensation treatment method thereof Active CN114484846B (en)

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