Air conditioner and control method thereof

Abstract

The application discloses an air conditioner and a control method thereof, wherein the air conditioner comprises a shell, an evaporator and a humidifying assembly; an air duct is defined in the shell; the evaporator is arranged in the air duct; and the humidifying assembly is arranged in the air duct and used for humidifying airflow in the air duct so that a water film can be formed on at least part of the evaporator when the evaporator is refrigerated; that is, the humidifying assembly is used for humidifying airflow in the air duct, and when the evaporator is refrigerated, the airflow in the air duct becomes high-humidity cold airflow, the high-humidity cold airflow meets the evaporator, and a water film is formed on the surface of the fins of the evaporator; when oil fume enters the shell, the oil fume is taken away by the water film after contacting the water film, so that the oil fume can be prevented from being enriched and dirted at the fins of the evaporator; not only can the fins of the evaporator be prevented from being eroded by the oil fume and being damaged, but also the heat exchange efficiency can be improved, the odor of the air outlet can be eliminated, and the user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an air conditioner and its control method. Background Technology

[0002] During kitchen air conditioning use, hot oil fumes enter the unit and quickly condense on the cooling fins. Over time, scale builds up, which is difficult to clean, eventually leading to fin corrosion and unpleasant odors. Current technologies mostly use mechanical separation, filtration, electrostatic deposition, and condensation washing at the air inlet to intercept oil fumes and reduce the amount entering the unit. However, the oil fumes at the air inlet cannot be completely intercepted; some still diffuse to the evaporator and accumulate on the fins, ultimately damaging them, reducing heat exchange efficiency, and causing unpleasant odors in the blown-out air. Summary of the Invention

[0003] The main objective of this invention is to propose an air conditioner and its control method, which aims to solve the problems of fin damage, reduced heat exchange efficiency, and odor in the exhaust air caused by incomplete oil fume interception.

[0004] To achieve the above objectives, the present invention provides an air conditioner, comprising:

[0005] A housing, wherein an air duct is defined within the housing;

[0006] An evaporator is disposed within the aforementioned air duct; and,

[0007] A humidifying component, disposed within the air duct, is used to humidify the airflow within the air duct so that a water film can be formed on at least a portion of the evaporator when the evaporator is cooling.

[0008] Optionally, a hydrophilic coating is provided on the fins of the evaporator.

[0009] Optionally, the humidification component includes:

[0010] Water storage box;

[0011] An atomizing plate is disposed on the water storage box; and,

[0012] The guide section is used to guide the water in the water storage box into the atomizing plate for atomization and humidification.

[0013] Optionally, a silver rod is provided inside the water storage box; and / or

[0014] The flow guide is treated with a hydrophilic and oleophobic coating.

[0015] Optionally, the flow guide includes a cotton core strip, one end of which is attached to the atomizing plate and the other end extends into the water storage box.

[0016] Optionally, a water receiving tray is also provided in the air duct, which is located below the evaporator to collect the condensate dripping from the evaporator. The water receiving tray can be connected to the water storage box to inject condensate into the water storage box.

[0017] Optionally, the water receiving tray is partially recessed to form a flow intercepting groove, and a water passage hole is provided at the bottom of the flow intercepting groove. A connecting pipe is provided between the water passage hole and the water storage box.

[0018] Optionally, a filter section is provided in the intercepting trough or the water passage hole.

[0019] Optionally, the housing is provided with an air outlet that communicates with the air duct;

[0020] The air conditioner also includes:

[0021] The wind turbine assembly includes a wind turbine rotatably installed in the wind duct and a first motor that drives the wind turbine to rotate.

[0022] A wind deflector assembly includes a plurality of wind deflectors movably mounted on the air outlet and a second motor for driving the plurality of wind deflectors to move; and,

[0023] The control device is electrically connected to the humidification assembly, the evaporator, the first motor, and the second motor.

[0024] The present invention also provides a control method for an air conditioner, the air conditioner including a casing, an evaporator and a humidification component, wherein an air duct is defined inside the casing, and the evaporator and the humidification component are disposed within the air duct;

[0025] The control method for the air conditioner includes the following steps:

[0026] Obtain the startup command;

[0027] According to the start command, the compressor of the air conditioner is controlled to start so that the evaporator can cool, and the humidification component is controlled to start so as to humidify the airflow in the air duct and form a water film on at least a portion of the evaporator.

[0028] When the actual ambient humidity in the air duct reaches the preset ambient humidity, the air conditioner is controlled to switch to the user-preset mode.

[0029] Optionally, the air conditioner further includes a fan assembly, the fan assembly including a fan rotatably mounted in the air duct and a first motor for driving the fan to rotate;

[0030] The steps of controlling the compressor of the air conditioner to start according to the start command, so as to make the evaporator cool, and controlling the humidification component to start to humidify the airflow in the air duct, and to form a water film on at least a portion of the evaporator, further include:

[0031] After controlling the compressor of the air conditioner to operate for a first preset time, the actual core temperature of the evaporator is obtained;

[0032] When the actual core temperature is lower than the preset core temperature, the humidification component is activated, and the first motor is turned on to make the fan wheel rotate.

[0033] After controlling the humidification component to operate for a second preset time, the actual ambient humidity of the air duct is obtained.

[0034] Optionally, the housing is provided with an air outlet that communicates with the air duct;

[0035] The air conditioner also includes a wind deflector assembly, which includes a plurality of wind deflectors movably mounted on the air outlet and a second motor for driving the plurality of wind deflectors to move.

[0036] When the actual ambient humidity in the air duct reaches the preset ambient humidity, the step of controlling the air conditioner to switch to the user-preset mode includes:

[0037] When the actual ambient humidity of the air duct reaches the preset ambient humidity, the second motor is controlled to start, so that the multiple baffles rotate to open the air outlet.

[0038] Control the air conditioner to switch to the user-preset mode.

[0039] In the technical solution of this invention, the air conditioner is equipped with a humidification component to humidify the airflow in the duct. When the evaporator is cooling, the airflow in the duct becomes a high-humidity cold airflow. When the high-humidity cold airflow encounters the evaporator, a water film is formed on the surface of the evaporator fins. When oil fumes enter the casing, they come into contact with the water film and are carried away by the water film. This prevents oil fumes from accumulating and forming scale on the evaporator fins. It not only avoids damage to the evaporator fins due to oil fume corrosion, but also improves heat exchange efficiency, eliminates odors in the exhaust air, and thus improves the user experience. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of an embodiment of the air conditioner provided by the present invention;

[0042] Figure 2 for Figure 1 A cross-sectional view of AA in the diagram;

[0043] Figure 3 for Figure 2 An enlarged diagram of B in the diagram;

[0044] Figure 4 for Figure 1 A cross-sectional view of CC in the diagram;

[0045] Figure 5 for Figure 4 An enlarged diagram of D in the diagram;

[0046] Figure 6 A flowchart of the first embodiment of the air conditioner control method provided by the present invention;

[0047] Figure 7 A flowchart of the second embodiment of the air conditioner control method provided by the present invention;

[0048] Figure 8 A flowchart of the third embodiment of the air conditioner control method provided by the present invention.

[0049] Explanation of reference numerals in the accompanying drawings of the embodiments provided in this invention:

[0050] 100 air conditioner 33 Guide section 1 chassis 331 cotton core strip 2 Evaporator 34 Silver Rod 3 Humidification components 4 Water tray 31 Water storage box 41 intercepting channel 32 Atomizing plate 5 Filtration section

[0051] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0053] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0054] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0055] During kitchen air conditioning use, hot oil fumes enter the unit and quickly condense on the cooling fins. Over time, scale builds up, which is difficult to clean, eventually leading to fin corrosion and unpleasant odors. Current technologies mostly use mechanical separation, filtration, electrostatic deposition, and condensation washing at the air inlet to intercept oil fumes and reduce the amount entering the unit. However, the oil fumes at the air inlet cannot be completely intercepted; some still diffuse to the evaporator and accumulate on the fins, ultimately damaging them, reducing heat exchange efficiency, and causing unpleasant odors in the blown-out air.

[0056] In view of this, the present invention provides an air conditioner and a control method thereof. Figures 1 to 5 This is a specific embodiment of the air conditioner provided by the present invention. Figures 6 to 8 This is a specific embodiment of the air conditioner control method provided by the present invention.

[0057] Please see Figures 1 to 5 The air conditioner 100 includes a housing 1, an evaporator 2, and a humidification component 3; the housing 1 defines an air duct; the evaporator 2 is disposed in the air duct; the humidification component 3 is disposed in the air duct to humidify the airflow in the air duct and to form a water film on at least a portion of the evaporator 2.

[0058] In the technical solution of the present invention, the air conditioner 100 is provided with a humidification component 3, which is used to humidify the airflow in the air duct. When the evaporator 2 is cooling, the airflow in the air duct becomes a high-humidity cold airflow. When the high-humidity cold airflow encounters the evaporator 2, a water film is formed on the surface of the fins of the evaporator 2. When oil fumes enter the casing 1, the oil fumes come into contact with the water film and are carried away by the water film. In this way, the oil fumes can be prevented from accumulating and forming scale on the fins of the evaporator 2. This not only avoids the fins of the evaporator 2 from being damaged by oil fumes, but also improves the heat exchange efficiency, eliminates odors in the exhaust air, and thus improves the user experience.

[0059] In this invention, to further prevent the accumulation of oil fumes, a hydrophilic coating is provided on the fins of the evaporator 2. It should be noted that when oil fumes encounter cold air in the air duct, they will generate oil droplets that adhere to the fins of the evaporator 2. By providing the hydrophilic coating on the fins of the evaporator 2, the rolling angle of the oil droplets on the fins of the evaporator 2 is very low, and they can be easily carried away by the water film, thereby playing a role in preventing the adhesion of oil fumes.

[0060] It should be noted that the present invention does not limit the specific form of the humidification component 3.

[0061] In this embodiment, further reference is made to... Figure 3 and Figure 5 The humidification component 3 includes a water storage box 31, an atomizing plate 32, and a flow guide 33. The atomizing plate 32 is disposed on the water storage box 31. The flow guide 33 is used to guide the water in the water storage box 31 into the atomizing plate 32 for atomized humidification. That is, when humidification is required, the atomizing plate 32 is powered on to atomize the water guided by the flow guide 33. This configuration is simple in structure, occupies little space, and can be implemented without changing the original structure of the air conditioner 100. It is easy to install and has a low cost.

[0062] Specifically, a silver rod 34 is provided inside the water storage box 31. The silver rod 34 has an antibacterial and anti-mold function, which not only prevents the water in the water storage box 31 from deteriorating and facilitates long-term storage of the water in the water storage box 31, but also maintains the water quality of the water in the water storage box 31 by making the water in the water storage box 31 antibacterial and anti-mold. This also makes the water mist after being atomized by the atomizing plate 32 still fresh, thereby further eliminating the problem of odor in the air outlet.

[0063] Specifically, the guide section 33 includes a cotton core strip 331, one end of which is attached to the atomizing plate 32, and the other end extends into the water storage box 31; that is, in this embodiment, the water in the water storage box 31 is guided into the atomizing plate 32 through the capillary effect of the cotton core strip 331, which has a simple structure and low cost.

[0064] Meanwhile, in this embodiment, the cotton core strip 331 is treated with hydrophilic and oleophobic properties. When the cotton core strip 331 absorbs water from the water storage box 31, it can separate water and oil and guide the separated water into the atomizing plate 32. This not only ensures that the water mist after atomization by the atomizing plate 32 remains fresh, thereby further eliminating the problem of odor in the air outlet, but also prevents the atomizing plate 32 from being damaged by oil stains, extending the service life of the atomizing plate 32.

[0065] It should be noted that since the cotton core strip 331 is a consumable with a service life of about one year, in this embodiment, the cotton core strip 331 is fixed to the atomizing plate 32 so that it can be detachably installed on the water storage box 31. This arrangement makes it more convenient to assemble and disassemble the atomizing plate 32 and the cotton core strip 331. It not only facilitates the replacement of the new cotton core strip 331, but also makes it easier for the user to disassemble the atomizing plate 32 and the cotton core strip 331 to clean the water storage box 31.

[0066] Further reading Figure 3 and Figure 5 A water collection tray 4 is also provided in the air duct, located below the evaporator 2, to collect condensate dripping from the evaporator 2. The water collection tray 4 is connected to the water storage box 31 to inject condensate into the water storage box 31. It should be noted that, in order to avoid water leakage from the indoor unit of the air conditioner and reduce the user experience, the indoor unit of the air conditioner is generally equipped with a water collection tray 4. The outlet of the water collection tray 4 is connected to the drain pipe to discharge the collected condensate outside the unit. In this embodiment, the water storage box 31 of the humidification component 3 is connected to the water collection tray 4. That is to say, the humidification component 3 directly uses the condensate in the water collection tray 4 for atomization, without the need for an additional water tank or connection structure to an external water source. This not only simplifies the structure of the humidification component 3 and reduces costs, but also makes the installation of the humidification component 3 more convenient.

[0067] It should be noted that, based on actual experimental calculations, only about 50 mL of humidification is needed to form a water film on the fins of the evaporator 2. When the evaporator 2 is cooling, the water tray 4 can collect 4-5 L of condensate per hour. Thus, the condensate in the water tray 4 can fully meet the humidification requirements, eliminating the need for an additional water tank or connection to an external water source, thereby simplifying the structure of the humidification component 3. Furthermore, the water storage box 31 can automatically fill with water before the last operation ends, ensuring normal humidification upon the next startup, without requiring manual water storage, thus providing convenience for users.

[0068] Specifically, the water receiving tray 4 is partially recessed to form a flow intercepting groove 41. A water passage hole is opened at the bottom of the flow intercepting groove 41, and a connecting pipe is connected between the water passage hole and the water storage box 31. It should be noted that since oil is less dense than water, it is lighter than water and will float on water at a given volume. Therefore, when the water receiving tray 4 is partially recessed to form the flow intercepting groove 41, the bottom wall of the intercepting groove is lower than the bottom of the water receiving tray 4. As a result, the oil floating on the top will flow away at the higher part of the water receiving tray 4, while the water at the bottom will flow into the intercepting groove and then enter the water storage box 31 through the water passage hole. This achieves one oil-water separation, which not only ensures that the water mist after being atomized by the humidifying component 3 is still fresh, thereby further eliminating the problem of odor in the exhaust air, but also prevents the humidifying component 3 from being damaged by oil stains, thus extending the service life of the humidifying component 3.

[0069] More specifically, the intercepting groove 41 or the water passage hole is provided with a filter section 5. The filter section 5 is used to filter impurities in the water flowing into the water storage box 31, thereby further purifying the water entering the water storage box 31 and improving the water quality in the water storage box 31. In this way, not only can the water mist after being atomized by the humidification component 3 be kept fresh, thereby further eliminating the problem of odor in the air outlet; but it can also prevent the humidification component 3 from being damaged by oil stains and extend the service life of the humidification component 3.

[0070] It should be noted that the present invention does not limit the specific form of the filter section 5. The filter section 5 can be an activated carbon filling layer. In this embodiment, the filter section 5 is set as PP filter cotton. Since PP filter cotton can remove particulate impurities larger than 5 micrometers in water, such as suspended solids, silt, red worms, rust, colloids and other large-volume substances, setting PP filter cotton in the water passage can reduce the turbidity of the water and improve the water quality. At the same time, the service life of PP filter cotton is 5 tons of water. Therefore, although PP filter cotton is a consumable, it will not bring a large cost burden to the user, and it does not need to be replaced frequently, which brings convenience to the user.

[0071] In this invention, the housing 1, for example, has an air outlet on its side wall that communicates with the air duct; the air conditioner 100 also includes a fan wheel assembly, a baffle assembly, and a control device; the fan wheel assembly includes a fan wheel rotatably mounted in the air duct and a first motor that drives the fan wheel to rotate; the baffle assembly includes a plurality of baffles movably mounted at the air outlet and a second motor that drives the plurality of baffles to move, and the movement of the baffles at the air outlet can be rotation; the control device is electrically connected to the humidification assembly 3, the evaporator 2, the first motor, and the second motor.

[0072] This invention also provides a control method for an air conditioner; please refer to [link / reference]. Figures 6 to 8 This is a specific embodiment of the air conditioner control method provided by the present invention.

[0073] Specifically, Figure 6 This is a first embodiment of the control method for an air conditioner provided by the present invention.

[0074] An air conditioner includes a casing, an evaporator, and a humidification component. An air duct is defined within the casing, and the evaporator and the humidification component are disposed within the air duct.

[0075] The control method for the air conditioner includes the following steps:

[0076] S10: Obtain the startup command;

[0077] S20: According to the start command, control the compressor of the air conditioner to start so that the evaporator can cool, and control the humidification component to start so as to humidify the airflow in the air duct and form a water film on at least part of the evaporator;

[0078] S30: When the actual ambient humidity in the air duct reaches the preset ambient humidity, control the air conditioner to switch to the user-preset mode.

[0079] In this embodiment, when the user turns on the unit, the control device receives the start command and controls the air conditioner's compressor and humidification component to start, so that the airflow in the duct becomes a high-humidity, cold airflow. When the high-humidity, cold airflow encounters the evaporator, a water film forms on the surface of the evaporator fins. When oil fumes enter the casing, they come into contact with the water film and are carried away by it. This prevents oil fumes from accumulating and forming scale on the evaporator fins. It not only avoids damage to the evaporator fins due to oil fume corrosion, but also improves heat exchange efficiency, eliminates odors in the exhaust air, and thus improves the user experience.

[0080] It should be noted that the present invention does not restrict the order in which the compressor and the humidification component are started. The humidification component can be started first to humidify the environment within the air duct, and then the compressor can be started to cool the evaporator. Alternatively, the compressor and the humidification component can be started simultaneously to allow humidification and cooling to occur concurrently. Specifically, in this embodiment, the compressor is started first to cool the evaporator, and then the humidification component is started to humidify the airflow within the air duct. This not only forms a uniform water film on the surface of the evaporator fins but also reduces the likelihood of frost formation, avoids defrosting noise, and improves the user experience.

[0081] Based on the first embodiment described above, a second embodiment of the control method for the air conditioner of the present invention is proposed.

[0082] Figure 7 This is a second embodiment of the control method for an air conditioner provided by the present invention.

[0083] The air conditioner also includes a fan wheel assembly, which includes a fan wheel rotatably installed in the air duct and a first motor that drives the fan wheel to rotate.

[0084] Step S20, which involves controlling the compressor of the air conditioner to start according to the start command, so that the evaporator can cool, and controlling the humidification component to start, so as to humidify the airflow in the air duct and form a water film on at least a portion of the evaporator, further includes:

[0085] S21: After controlling the compressor of the air conditioner to work for a first preset time, obtain the actual core temperature of the evaporator;

[0086] S22: When the actual core temperature is lower than the preset core temperature, control the humidification component to start and control the first motor to turn on so that the fan wheel rotates;

[0087] S23: After controlling the humidification component to work for a second preset time, obtain the actual ambient humidity of the air duct.

[0088] In this embodiment, the control device receives the start command and controls the compressor to start, so that the evaporator begins to cool. After the compressor has been working for a first preset time, when the actual core temperature of the evaporator is greater than the preset core temperature, the control device controls the compressor to continue working. When the actual core temperature of the evaporator is less than the preset core temperature, it means that the temperature of the cold air in the air duct has reached the preset temperature. At this time, the control device controls the humidification component to start and simultaneously controls the first motor to start, so that the fan wheel rotates simultaneously. The fan wheel can make the cold air in the air duct and the water mist generated by the humidification component quickly diffuse in the air duct, so that a high-humidity cold airflow is quickly formed in the air duct, thereby shortening the water film formation time of the evaporator fins. The control device controls the humidification component to work for a second preset time to obtain the actual ambient humidity of the air duct, so that the humidity of the airflow in the air duct can be further controlled.

[0089] Based on the second embodiment described above, a third embodiment of the control method for the air conditioner of the present invention is proposed.

[0090] Figure 8 This is a third embodiment of the air conditioner control method provided by the present invention.

[0091] The side wall of the housing is provided with an air outlet that connects to the air duct;

[0092] The air conditioner also includes a wind deflector assembly, which includes a plurality of wind deflectors rotatably mounted on the air outlet and a second motor for driving the plurality of wind deflectors to rotate.

[0093] Step S30, which controls the air conditioner to switch to a user-preset mode when the actual ambient humidity in the air duct reaches the preset ambient humidity, includes:

[0094] S31: When the actual ambient humidity of the air duct reaches the preset ambient humidity, control the second motor to turn on, so that the multiple baffles rotate to open the air outlet;

[0095] S32: Control the air conditioner to switch to the user-preset mode.

[0096] It should be noted that experiments have shown that the air conditioner needs to run continuously for more than 20 minutes during cooling before a water film forms on the evaporator fins. Since the fin temperature remains low after cooling, and the amount of condensate on the fins is much greater than the amount of water carried away by the oil fumes, the water film can continuously cover the fins. Therefore, after controlling the compressor to operate for a first preset time and the humidification component to operate for a second preset time, when the actual core temperature of the evaporator is lower than the preset core temperature and the actual ambient humidity of the air duct reaches the preset ambient humidity, it can be determined that a water film has formed on the evaporator fins. At this point, the second motor can be activated to rotate the multiple baffles to open the air outlets and begin airflow. Then, the air conditioner can be switched to the user-preset operating mode. This satisfies user needs, prevents damage to the evaporator fins from oil fume corrosion, improves heat exchange efficiency, eliminates odors in the exhaust air, and thus enhances the user experience.

[0097] The following are the experimental procedures and results for the air conditioner control method proposed in this invention:

[0098] Test method:

[0099] An air conditioner is provided, which uses a heat exchanger with a size of 25cm*35cm. The air conditioner is suspended above the gas stove, and the blended oil is heated to 300℃ to produce oil vapor. The air conditioner is then subjected to a cycle test (cooling on for 3 hours + off for 2 hours). After different test cycles, the hydrophilic angle of the evaporator fins and the oil content in the discharged condensate are measured.

[0100] Detection method:

[0101] 1. Testing the change in hydrophilic angle on the fins: Add distilled water to the droplet regulator and fix the regulator to the air conditioner casing. Rotate the micrometer to form a droplet of distilled water (approximately 10 μL) on the needle tip. Move the droplet to the surface of the evaporator fins and center it in the eyepiece. After the droplet has remained on the evaporator fin surface for 60 seconds and no longer spreads, rotate the crosshair in the eyepiece to draw the tangent at the point of contact between the droplet and the coating on the fin surface. The angle between the tangent and the fixed crosshair is the contact angle.

[0102] 2. Oil content test in condensate: Collect 1000ml of condensate generated during the test within a unit time. Place the condensate in an Erlenmeyer flask, add 20g NaCl and shake until dissolved. Add 250ml petroleum ether, shake well, and pour into a separatory funnel. After standing and separating the layers, collect the upper layer. Wash the upper layer three times with 250ml petroleum ether, collect all the upper layer again, and add anhydrous sodium sulfate to dehydrate. After standing for half an hour, filter into a pre-weighed flat-bottomed flask. After the solvent evaporates, dry at 120℃ for 2 hours, remove, cool, and weigh. This is the weight of oil fumes discharged per unit time (the more discharged, the less residue inside).

[0103] 3. Heat exchange performance test: Low temperature wet condition (7 / 6 dry and wet bulb, -2 coolant inlet), 1.5 m / s (constant static pressure -13 Pa), test the heat exchange capacity;

[0104] Test sample:

[0105] Comparative Example 1 illustrates the control method used in normal cooling mode without humidification.

[0106] Example 1 illustrates the operation of an air conditioner using the control method provided in this embodiment of the invention;

[0107] Test results:

[0108]

[0109]

[0110] As demonstrated by the above experimental process and results, the air conditioner and its control method proposed in this invention are particularly suitable for kitchen applications. They can significantly reduce the amount of oil buildup on the evaporator, prevent damage to the evaporator fins from oil fume corrosion, improve heat exchange efficiency, and eliminate odors in the exhaust air, thereby enhancing the user experience. Of course, the air conditioner and its control method proposed in this invention are also applicable to other non-kitchen applications.

[0111] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air conditioner, characterized in that, include: A housing, wherein an air duct is defined within the housing; An evaporator is located within the aforementioned air duct; as well as, A humidifying component is disposed within the air duct. The humidifying component includes a water storage box, an atomizing plate, and a guide section. The atomizing plate is disposed on the water storage box. The guide section is used to guide water from the water storage box into the atomizing plate. The humidifying component is used to atomize and humidify the airflow within the air duct so that a water film can be formed on at least a portion of the evaporator when the evaporator is cooling.

2. The air conditioner as described in claim 1, characterized in that, A hydrophilic coating is provided on the fins of the evaporator.

3. The air conditioner as described in claim 1, characterized in that, A silver rod is provided inside the water storage box; and / or The flow guide is treated with a hydrophilic and oleophobic coating.

4. The air conditioner as described in claim 1, characterized in that, The flow guide includes a cotton core strip, one end of which is attached to the atomizing plate and the other end extends into the water storage box.

5. The air conditioner as described in claim 1, characterized in that, A water collection tray is also provided in the air duct, which is located below the evaporator to collect the condensate dripping from the evaporator. The water collection tray can be connected to the water storage box to inject condensate into the water storage box.

6. The air conditioner as described in claim 5, characterized in that, The water receiving tray is partially recessed to form a flow interception groove, and a water passage hole is opened at the bottom of the flow interception groove. A connecting pipe is connected between the water passage hole and the water storage box.

7. The air conditioner as described in claim 6, characterized in that, A filter section is provided inside the intercepting trough or the water passage hole.

8. The air conditioner as described in claim 1, characterized in that, The housing has an air outlet that connects to the air duct; The air conditioner also includes: A wind turbine assembly includes a wind turbine rotatably mounted in the wind duct and a first motor that drives the wind turbine to rotate. A wind deflector assembly includes a plurality of wind deflectors movably mounted on the air outlet and a second motor for driving the plurality of wind deflectors to move; and, The control device is electrically connected to the humidification assembly, the evaporator, the first motor, and the second motor.

9. A control method for an air conditioner, characterized in that, An air conditioner includes a casing, an evaporator, and a humidification component. An air duct is defined inside the casing. The evaporator and the humidification component are disposed within the air duct. The humidification component includes a water storage box, an atomizing plate, and a flow guide. The atomizing plate is disposed on the water storage box, and the flow guide is used to guide water from the water storage box into the atomizing plate. The control method for the air conditioner includes the following steps: Obtain the startup command; According to the start command, the compressor of the air conditioner is controlled to start so that the evaporator can cool, and the humidification component is controlled to start so as to atomize and humidify the airflow in the air duct and form a water film on at least part of the evaporator; When the actual ambient humidity in the air duct reaches the preset ambient humidity, the air conditioner is controlled to switch to the user-preset mode.

10. The control method for an air conditioner as described in claim 9, characterized in that, The air conditioner also includes a fan wheel assembly, which includes a fan wheel rotatably installed in the air duct and a first motor that drives the fan wheel to rotate. The steps of controlling the compressor of the air conditioner to start according to the start command, so as to make the evaporator cool, and controlling the humidification component to start to humidify the airflow in the air duct, and to form a water film on at least a portion of the evaporator, further include: After controlling the compressor of the air conditioner to operate for a first preset time, the actual core temperature of the evaporator is obtained; When the actual core temperature is lower than the preset core temperature, the humidification component is activated, and the first motor is turned on to make the fan wheel rotate. After controlling the humidification component to operate for a second preset time, the actual ambient humidity of the air duct is obtained.

11. The control method for an air conditioner as described in claim 10, characterized in that, The housing has an air outlet that connects to the air duct; The air conditioner also includes a wind deflector assembly, which includes a plurality of wind deflectors movably mounted on the air outlet and a second motor for driving the plurality of wind deflectors to move. When the actual ambient humidity in the air duct reaches the preset ambient humidity, the step of controlling the air conditioner to switch to the user-preset mode includes: When the actual ambient humidity of the air duct reaches the preset ambient humidity, the second motor is controlled to start, so that the multiple baffles rotate to open the air outlet. Control the air conditioner to switch to the user-preset mode.

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