CN110986250A - A kind of control method, device and air conditioner for drying and mildew proofing of air conditioner - Google Patents

Abstract

The invention relates to the technical field of air conditioners, and provides a control method, device and air conditioner for drying and mildew prevention of the air conditioner. The control method includes: S1, when the air conditioner receives a shutdown command, determine the current operation mode of the air conditioner ; S2, when it is determined that the current operating mode of the air conditioner is the cooling mode or the dehumidification mode, the electric heater of the air conditioner is controlled to be turned on, the air deflector is turned off, and the detection of the humidity in the air conditioner is started; S3, when the electric heater is detected When the humidity value after the heater is turned on is less than or equal to the humidity value before the electric heater is turned on, the electric heater is turned off; when the control method and the control device shown in the present invention are used in an air conditioner, the cooling mode or dehumidification mode can be realized. , Effectively remove the condensed water generated on the evaporator, internal fan and internal frame of the air conditioner, prevent the growth of mold during the long-term operation of the air conditioner, and ensure the heat exchange efficiency of the air conditioner during long-term operation and the user's use of the air conditioner. Comfort experience.

Description

A kind of control method, device and air conditioner for drying and mildew proofing of air conditioner

technical field

The invention relates to the technical field of air conditioners, and in particular, to a control method and device for drying and mildew prevention of the air conditioner, and the air conditioner.

Background technique

With the continuous development of the economy, the application of air conditioners is becoming more and more extensive. Because air conditioners can bring a comfortable experience to users by adjusting the indoor ambient temperature, air conditioners have become one of the most common household appliances. The requirements of equipment, health and comfort are also getting higher and higher.

At present, after the air conditioner uses the refrigeration or dehumidification function for a long time in summer, there will be a large amount of condensed water on the evaporator, the internal fan and the internal frame that is not removed. After a period of time, the humid environment in the air conditioner will lead to the growth of bacteria and produce odors. These molds or odors will be blown into the entire room with the opening of the air conditioner, thereby causing pollution to the indoor environment and causing users to impact on health. At the same time, the long-term humid environment makes the evaporator more likely to accumulate dust and scale, causing the evaporator fins to be dirty and blocked, and the air volume of the internal fan will be attenuated, resulting in poor heat exchange efficiency of the air conditioner, which seriously affects the user's comfort.

SUMMARY OF THE INVENTION

(1) Technical problems to be solved

One of the objectives of the present invention is to provide a control method and control device for drying and preventing mildew in an air conditioner, so as to solve the problem that mold is easily grown in the internal humid environment of the existing air conditioner and affects the health of users.

The second purpose of the present invention is to provide an air conditioner based on the above-mentioned control device, so as to ensure the heat exchange efficiency during the long-term operation of the air conditioner and the user's comfortable experience.

(2) Technical solutions

In order to solve the above-mentioned technical problems, the present invention provides, on the one hand, a method for controlling the drying and mildew prevention of an air conditioner, comprising:

S1, when the air conditioner receives a shutdown instruction, determine the current operation mode of the air conditioner;

S2, when it is determined that the current operating mode of the air conditioner is the cooling mode or the dehumidification mode, control the electric heater of the air conditioner to turn on and the air deflector to turn off, and start the detection of the humidity in the air conditioner;

S3, when it is detected that the humidity value after the electric heater is turned on is less than or equal to the humidity value before the electric heater is turned on, turn off the electric heater.

Preferably, in step S2 of the present invention, controlling the electric heater of the air conditioner to turn on and the air deflector to turn off further includes: receiving a shutdown command in the air conditioner, and detecting that the running time of the compressor in the air conditioner exceeds the first preset time At the time, the electric heater is controlled to be turned on, and the air deflector is controlled to be turned off.

Preferably, in the present invention, starting the detection of the humidity in the air conditioner in step S2 further includes: starting the detection of the humidity in the air conditioner for the first time before the electric heater is turned on; When the time is set, the detection of the humidity in the air conditioner is started for the second time.

Preferably, in the present invention, the first preset time is 20-30 minutes, and the second preset time is 5-10 minutes.

Preferably, the present invention further includes: using a humidity sensor to detect the humidity inside the air conditioner, and the humidity sensor is installed inside the air conditioner near the air inlet.

Preferably, the present invention provides, in another aspect, a drying and mildew-proof control device for an air conditioner, comprising:

The judgment module is used for judging the current operation mode of the air conditioner when the air conditioner receives the shutdown instruction;

The first control module is used to control the electric heater of the air conditioner to turn on and the air deflector to turn off when it is determined that the current operating mode of the air conditioner is the cooling mode or the dehumidification mode, and to start the detection module to check the humidity in the air conditioner. detection;

The second control module is configured to turn off the electric heater when it is detected that the humidity value after the electric heater is turned on is less than or equal to the humidity value before the electric heater is turned on.

Preferably, the present invention also includes:

The third control module is configured to control the electric heater of the air conditioner to turn on and the wind deflector to turn off when the air conditioner receives a shutdown instruction and detects that the running time of the compressor in the air conditioner exceeds the first preset time.

Preferably, the detection module in the present invention is used to start the detection of the humidity in the air conditioner for the first time before the electric heater is turned on, and start the detection of the humidity in the air conditioner for the second time when the operation time of the electric heater reaches the second preset time. Detection of humidity in air conditioners.

Preferably, in another aspect of the present invention, an air conditioner is provided, which includes an electric heater, a compressor, a wind deflector and a humidity sensor; it also includes the above-mentioned control device for drying and preventing mildew in the air conditioner; The mildew-proof control device acquires the humidity in the air conditioner through the humidity sensor, and controls the electric heater, the compressor and the air guide plate.

Preferably, in the present invention, the humidity sensor is installed inside the air conditioner near the air inlet.

(3) Technical effect

According to the control method and control device for drying and mildew prevention of an air conditioner provided by the present invention, in the actual use process, when a user sends a shutdown command to the air conditioner, the air conditioner will automatically judge the current operation mode according to the control device. When the current operating mode of the air conditioner is cooling mode or dehumidification mode, the electric heater of the air conditioner is controlled to be turned on and the air deflector is turned off. Due to the closing of the air deflector, the electric heater will form a relative opposite in the air conditioner when it is working. Closed heating environment, which makes the condensed water condensed on the outer wall of the evaporator, the inner fan and the inner frame to evaporate gradually, and the water vapor generated by evaporation is gradually discharged from the air inlet of the air conditioner. During this process, the humidity in the air conditioner It will rise first and then fall, so when it is detected that the humidity value after the electric heater is turned on is less than or equal to the humidity value before the electric heater is turned on, it indicates that the dehumidification operation in the air conditioner has been completed, and the electric heating needs to be turned off at this time. The air conditioner is officially shut down and powered off. It can be seen that the present invention realizes the effective removal of the condensed water generated on the evaporator, the internal fan and the internal frame of the air conditioner in the cooling mode or the dehumidification mode, and prevents the air conditioner from being damaged by the internal humid environment during long-term operation. It leads to the growth of mold, thereby preventing the pollution of mold to the indoor environment and ensuring the healthy life of users.

The air conditioner provided by the present invention adopts the above-mentioned control method and control device for drying and mildew prevention of the air conditioner, which enables the air conditioner to maintain a dry internal environment and effectively prevents the air conditioner from evaporating during long-term use. The problem of dust accumulation and scaling in the air conditioner and the attenuation of the air volume of the internal fan can ensure the heat exchange efficiency of the air conditioner during long-term operation and the user's comfortable experience.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of a control method for drying and mildew-proofing of an air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram showing that the control device for drying and mildew prevention of the air conditioner according to the embodiment of the present invention is respectively connected with a humidity sensor, an electric heater, a compressor and a wind deflector.

In the figure: 1-judgment module, 2-first control module, 3-second control module, 4-third control module, 5-detection module, 6-humidity sensor, 7-electric heater, 8-compressor, 9- Air deflector.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Referring to FIG. 1, one embodiment of the present invention provides a control method for drying and mildew prevention of an air conditioner, including:

S1, when the air conditioner receives a shutdown instruction, determine the current operation mode of the air conditioner;

S2, when it is determined that the current operating mode of the air conditioner is the cooling mode or the dehumidification mode, control the electric heater of the air conditioner to turn on and the air deflector to turn off, and start the detection of the humidity in the air conditioner;

S3, when it is detected that the humidity value after the electric heater is turned on is less than or equal to the humidity value before the electric heater is turned on, turn off the electric heater.

Specifically, in this embodiment, the air conditioner operates in the cooling mode or the dehumidification mode before shutting down, because only in the cooling mode or the dehumidification mode, the evaporator of the air conditioner, the outer wall of the inner fan and the inner frame will Condensation occurs, and when the condensate is not removed for a long time, mold can grow.

Based on the above situation, in the actual use process, when the user sends a shutdown command to the air conditioner, the air conditioner will automatically determine the current operating mode. The electric heater is turned on and the air deflector is closed. Due to the closing of the air deflector, a relatively closed heating environment will be formed in the air conditioner when the electric heater is working, which will cause condensation on the outer wall of the evaporator and the inner fan. and the condensed water on the internal skeleton gradually evaporates, and the water vapor produced by evaporation is gradually discharged from the air inlet of the air conditioner. During this process, the humidity in the air conditioner will first rise and then fall. When the humidity value is less than or equal to the humidity value before the electric heater is turned on, it indicates that the dehumidification operation in the air conditioner has been completed.

It can be seen that the control method for drying and mildew prevention of the air conditioner shown in this embodiment can effectively remove the condensed water generated on the evaporator, the internal fan and the internal skeleton of the air conditioner in the cooling mode or the dehumidifying mode. It prevents the growth of mold caused by the internal humid environment of the air conditioner during long-term operation, thereby preventing the pollution of mold to the indoor environment and ensuring the healthy life of users.

Further, in this embodiment, controlling the electric heater of the air conditioner to turn on and the wind deflector to turn off in step S2 also includes: receiving a shutdown command in the air conditioner, and detecting that the running time of the compressor in the air conditioner exceeds the first preset time. When the time is up, the electric heater is controlled to be turned on, and the air deflector is controlled to be turned off.

Specifically, the first preset time represents the operating time of the compressor in the air conditioner, and the operating time ranges from 20 to 30 minutes, specifically, but not limited to, 20 minutes, 25 minutes, or 30 minutes. When the running time of the compressor is less than the first preset time, due to the short working time of the refrigeration system in the air conditioner, no condensation or condensation of condensed water will occur on the evaporator of the air conditioner, the outer wall and the inner frame of the inner fan. There is only a small amount of condensation of condensed water, and the removal of condensed water is not required at this time; on the contrary, only when it is detected that the running time of the compressor exceeds the first preset time, the electric heater is controlled to turn on and the air deflector is controlled Closed, which greatly saves energy consumption, and heats and evaporates the condensed water in a relatively closed internal environment, effectively preventing the heat loss of the electric heater during the heating process, and ensuring the effective removal of condensed water.

Further, in this embodiment, starting the detection of the humidity in the air conditioner in step S2 further includes: starting the detection of the humidity in the air conditioner for the first time before the electric heater is turned on, and when the electric heater is running for the second time. At the preset time, the detection of the humidity in the air conditioner is started for the second time.

Specifically, in the actual detection process, the humidity in the air conditioner can be continuously detected or tracked, but considering that the operating time of the electric heater reaches the second preset time, the range of the second preset time is 5~ 10min, specifically can be set to 5min, 8min or 10min, but not limited to this. At this time, the effective removal of the condensed water condensed on the evaporator of the air conditioner, the outer wall of the inner fan and the inner frame has been completed or nearly completed. At this time, the air conditioner The internal humidity will be reduced to or below the humidity value before the electric heater is turned on, and the electric heater will continue to work, which will only cause the humidity inside the air conditioner to continue to decrease and eventually maintain a stable value. In order to reduce energy consumption, It is only necessary to start the detection of the humidity in the air conditioner for the first time before the electric heater is turned on, and start the detection of the humidity in the air conditioner for the second time when the operation time of the electric heater reaches the second preset time.

Further, this embodiment further includes: using a humidity sensor to detect the humidity inside the air conditioner, and the humidity sensor is installed inside the air conditioner near the air inlet.

Specifically, when the dehumidification work is performed inside the air conditioner, the electric heater is in a working state and the air deflector is in a closed state. At this time, a relatively closed dehumidification environment will be formed in the air conditioner. The condensed water condensed on the outer wall and the inner frame is heated and converted into water vapor will be discharged from the air inlet of the air conditioner, so that the humidity sensor is installed near the air inlet inside the air conditioner, which effectively ensures that the humidity sensor can detect humidity effectively. Accuracy, and real-time accurate tracking of the humidity in the air conditioner.

Referring to FIG. 2, another embodiment of the present invention provides a control device for drying and mildew prevention of an air conditioner, including:

The judgment module 1 is used for judging the current operation mode of the air conditioner when the air conditioner receives a shutdown instruction;

The first control module 2 is used to control the electric heater 7 of the air conditioner to turn on and the air deflector 9 to turn off when it is determined that the current operating mode of the air conditioner is the refrigeration mode or the dehumidification mode, and to start the detection module 5 to monitor the air conditioner. Check the humidity inside;

The second control module 3 is configured to turn off the electric heater 7 when it is detected that the humidity value after the electric heater 7 is turned on is less than or equal to the humidity value before the electric heater 7 is turned on.

Specifically, in this embodiment, when the air conditioner performs the drying and mildew-proof treatment, first, the judgment module 1 judges the current operation mode of the air conditioner when the user sends a shutdown command to the air conditioner, and the first control module 2 is in When judging that the current operating mode of the air conditioner is the cooling mode or the dehumidifying mode, it will control the electric heater 7 to turn on and the air deflector 9 to turn off, wherein the first control module 2 controls the rotation state of the motor connected to the air deflector 9 to control the opening/closing of the air deflector 9; due to the closing of the air deflector 9, the electric heater 7 will form a relatively closed heating environment in the air conditioner when it is working, which will cause condensation on the evaporator, the indoor fan The condensed water on the outer wall and the inner skeleton of the air conditioner gradually evaporates, and the water vapor produced by the evaporation is gradually discharged from the air inlet of the air conditioner. During this process, the humidity in the air conditioner will first rise and then fall. Therefore, the second control module 3 When it is detected that the humidity value after the electric heater 7 is turned on is less than or equal to the humidity value before the electric heater 7 is turned on, it indicates that the dehumidification operation in the air conditioner has been completed. Power off.

It can be seen that the control device for drying and mildew prevention of the air conditioner shown in this embodiment can effectively remove the condensed water generated on the evaporator, the internal fan and the internal skeleton of the air conditioner in the cooling mode or the dehumidifying mode. It prevents the growth of mold caused by the internal humid environment of the air conditioner during long-term operation, thereby preventing the pollution of mold to the indoor environment and ensuring the healthy life of users.

Further, this embodiment also includes:

The third control module 4 is configured to control the electric heater 7 of the air conditioner to turn on and the air guide plate 9 to turn on when the air conditioner receives a shutdown command and detects that the running time of the compressor 8 in the air conditioner exceeds the first preset time. closure.

Specifically, the first preset time represents the operating time of the compressor 8 in the air conditioner, and the operating time ranges from 20 to 30 minutes, specifically, but not limited to, 20 minutes, 25 minutes, or 30 minutes. When the third control module 4 detects that the running time of the compressor 8 is less than the first preset time, due to the short working time of the refrigeration system in the air conditioner, the evaporator of the air conditioner, the outer wall of the indoor fan and the inner frame No condensation of condensed water or only a small amount of condensation of condensed water will occur, and no condensed water removal operation is required at this time; on the contrary, the third control module 4 only detects that the running time of the compressor 8 exceeds the first preset time. When the time is up, the electric heater 7 is controlled to be turned on, and the air deflector 9 is controlled to be closed, which greatly saves energy consumption, and heats and evaporates the condensed water in a relatively closed internal environment, effectively preventing the electric heater 7 from heating. The loss of heat during the process ensures efficient removal of condensate.

Further, in this embodiment, the detection module 5 is used to start the detection of the humidity in the air conditioner for the first time before the electric heater 7 is turned on. When the operation time of the electric heater 7 reaches the second preset time, the second Start the detection of the humidity in the air conditioner for the second time.

Specifically, in the actual detection process, the humidity in the air conditioner can be continuously detected or tracked, but considering that the operating time of the electric heater 7 reaches the second preset time, the range of the second preset time is 5 ～10min, specifically can be set to 5min, 8min or 10min, but not limited to this. At this time, the effective removal of the condensed water condensed on the evaporator of the air conditioner, the outer wall of the inner fan and the inner frame has been completed or nearly completed. At this time, the air conditioner The humidity inside the air conditioner will decrease to or be lower than the humidity value before the electric heater 7 is turned on, and the electric heater 7 continues to work, which will only make the humidity inside the air conditioner continue to decrease and finally maintain a stable value. Energy consumption, only need to start the humidity detection in the air conditioner for the first time before the electric heater 7 is turned on, and start the humidity detection in the air conditioner for the second time when the operation time of the electric heater 7 reaches the second preset time. This can greatly reduce the number of times of humidity collection.

Further, referring to FIG. 2, another specific embodiment of the present invention also provides an air conditioner, including an electric heater 7, a compressor 8, a wind deflector 9 and a humidity sensor 6, and the humidity sensor 6 is used to detect the air conditioner It also includes the above-mentioned control device for drying and mildew-proofing of the air-conditioner, the control device for drying and mildew-proofing of the air-conditioner obtains the humidity in the air-conditioner through the humidity sensor 6, and controls the electric heater 7, the compressor 8 and the The wind deflector 9 is controlled.

Specifically, in the solution shown in this embodiment, since the air conditioner adopts the above-mentioned control device for drying and mildew prevention of the air conditioner, when the compressor 8 runs to the first preset time, the electric heater 7 is automatically started, And close the air deflector 9 to remove the condensed water in the air conditioner. When the second preset time is reached, the dehumidification operation in the air conditioner is completed, and the electric heater 7 is controlled to be turned off, and the air conditioner is turned off. , so that the air conditioner can maintain a dry internal environment, effectively preventing the air conditioner in the long-term use of the process, the evaporator has the problem of fouling, scaling and the air volume attenuation of the internal fan, thus ensuring the long-term operation of the air conditioner. Heat exchange efficiency and user comfort experience.

Further, in this embodiment, the humidity sensor 6 is installed inside the air conditioner near the air inlet.

Specifically, in the solution shown in this embodiment, when the dehumidification work is performed inside the air conditioner, the electric heater 7 is in the working state, and the air guide plate 9 is in the closed state. At this time, a relatively closed air conditioner is formed in the air conditioner. In the dehumidifying environment, the water vapor condensed on the evaporator of the air conditioner, the outer wall of the inner fan and the inner frame will be discharged from the air inlet of the air conditioner, so that the humidity sensor 6 is installed on the inside of the air conditioner close to the air inlet. At the air outlet, the accuracy of humidity detection by the humidity sensor 6 is effectively ensured, and the real-time and accurate tracking of the humidity in the air conditioner is realized.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A control method for drying and mildew prevention of an air conditioner is characterized by comprising the following steps:

s1, when the air conditioner receives the shutdown instruction, judging the current operation mode of the air conditioner;

s2, when the current operation mode of the air conditioner is judged to be a refrigeration mode or a dehumidification mode, controlling an electric heater of the air conditioner to be started and an air deflector to be closed, and starting to detect the humidity in the air conditioner;

and S3, when the humidity value after the electric heater is started is detected to be less than or equal to the humidity value before the electric heater is started, the electric heater is turned off.

2. The method for controlling drying and mold prevention of an air conditioner according to claim 1, wherein the step S2 of controlling the turning on of the electric heater and the turning off of the air deflector of the air conditioner further comprises:

and when the air conditioner receives a shutdown instruction and detects that the running time of a compressor in the air conditioner exceeds a first preset time, controlling the electric heater to be started and controlling the air deflector to be closed.

3. The method for controlling drying and mold prevention of an air conditioner according to claim 2, wherein the step S2 of starting the detection of the humidity in the air conditioner further comprises:

before the electric heater is started, the detection of the humidity in the air conditioner is started for the first time;

and when the running time of the electric heater reaches a second preset time, starting the detection of the humidity in the air conditioner for the second time.

4. The method for controlling drying and mildew prevention of an air conditioner according to claim 3, wherein the first preset time is 20-30 min, and the second preset time is 5-10 min.

5. The method for controlling drying and mildew prevention of an air conditioner according to any one of claims 1-4, further comprising:

adopt humidity transducer right the inside humidity of air conditioner detects, humidity transducer installs the inboard air intake department that is close to of air conditioner.

6. A control device for drying and mildew proofing of an air conditioner is characterized by comprising:

the judging module is used for judging the current running mode of the air conditioner when the air conditioner receives a shutdown instruction;

the first control module is used for controlling an electric heater of the air conditioner to be started and an air deflector to be closed when the current operation mode of the air conditioner is judged to be a refrigeration mode or a dehumidification mode, and starting the detection module to detect the humidity in the air conditioner;

and the second control module is used for turning off the electric heater when the humidity value after the electric heater is turned on is detected to be less than or equal to the humidity value before the electric heater is turned on.

7. The drying and mildew-proof control device of an air conditioner according to claim 6, further comprising:

and the third control module is used for controlling the electric heater of the air conditioner to be started and the air deflector to be closed when the air conditioner receives a shutdown instruction and detects that the running time of a compressor in the air conditioner exceeds first preset time.

8. The drying and molding control device for air conditioner according to claim 6,

the detection module is used for detecting the humidity in the air conditioner by starting for the first time before the electric heater is started, and when the running time of the electric heater reaches second preset time, detecting the humidity in the air conditioner by starting for the second time.

9. An air conditioner, comprising an electric heater, a compressor, an air deflector and a humidity sensor, and being characterized by further comprising a drying and mildew-proof control device of the air conditioner as claimed in any one of claims 6 to 8;

the air conditioner drying and mildew-proof control device obtains the humidity in the air conditioner through the humidity sensor and controls the electric heater, the compressor and the air deflector.

10. The air conditioner according to claim 9,

the humidity sensor is arranged at the position, close to the air inlet, of the inner side of the air conditioner.

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