CN108072153A - Control method, radiation air-conditioner and the storage medium of radiation air-conditioner - Google Patents

Abstract

The invention discloses a control method of a radiant air conditioner, a radiant air conditioner and a storage medium. When a shutdown command is received, the current operating mode of the radiant air conditioner is detected, and when the current operating mode is refrigeration or dehumidification, the operation of the radiant air conditioner is reduced. Frequency, and control the radiant air conditioner to switch to the heating operation mode after the first preset time length, adjust the heating operation frequency of the radiant air conditioner, and control the radiant air conditioner to stop after the second preset time length, and complete the The drying of the condensation on the surface of the evaporator prevents the condensation on the surface of the evaporator from breeding mold and producing peculiar smell after shutdown, which affects the air quality and comfort of the air conditioner, and improves the cleanliness and comfort of the radiant air conditioner.

Description

Control method of radiant air conditioner, radiant air conditioner, and storage medium

technical field

The present invention relates to the technical field of radiant air conditioning, in particular to a control method for radiant air conditioning, a radiant air conditioner, and a storage medium.

Background technique

Traditional household air-conditioning indoor units usually use tube-fin heat exchangers, which force air supply through fan design and enhance convection heat exchange to obtain higher heat exchange efficiency. However, this type of air conditioner is noisy and uneven air supply during operation. Moreover, the air supply temperature is low during cooling, and the air supply is dry during heating, which results in low comfort for the human body.

At present, there is a radiant air-conditioning system on the market, which adopts the method of radiation heat exchange + convective heat exchange, and exchanges heat with the enclosure structure through the embedded pipe or capillary network, and then directly radiates the cooling capacity from the enclosure structure to the indoor room or Heat, or use a ceiling-type metal radiant panel to directly radiate cold or heat to the room, because the radiated cold or heat directly acts on the human body, making people feel comfortable and without noise. However, the terminal heat exchanger of this air-conditioning system needs to pre-embed pipes or capillary pipe networks before home decoration, which limits the scope of application, and the system is complicated, difficult to install, uses a lot of materials, and costs high.

In addition, another type of radiant heat exchange air conditioner installed against the wall that appears on the market can use the evaporation temperature of the dew point to enhance the heat exchange effect during cooling. After that, it is easy to breed mold and affect the cleanliness of the air conditioner.

Contents of the invention

The main purpose of the present invention is to provide a control method for a radiant air conditioner, which aims at avoiding condensation after the radiant air conditioner is shut down, and improving the cleanliness and comfort of the radiant air conditioner.

In order to achieve the above object, the control method of the radiant air conditioner proposed by the present invention comprises the following steps:

When a shutdown command is received, detect the current operating mode of the radiant air conditioner;

When the current operation mode is cooling or dehumidification, reduce the operating frequency of the radiant air conditioner, and control the radiant air conditioner to switch to the heating operation mode after a first preset period of time;

The heating operation frequency of the radiant air conditioner is adjusted, and the radiant air conditioner is controlled to stop after a second preset period of time.

Further, when the current operation mode is cooling or dehumidification, the step of reducing the operation frequency of the radiant air conditioner, and controlling the radiant air conditioner to switch to the heating operation mode after a first preset period of time specifically includes :

When the current operation mode is cooling or dehumidification, control the radiant air conditioner to reduce to the minimum operating frequency, and control the radiant air conditioner to switch to Heating mode of operation.

Further, when the current operation mode is cooling or dehumidification, control the radiant air conditioner to reduce to the minimum operating frequency, and after the radiant air conditioner operates at the minimum operating frequency for a first preset time period, control the Describe the steps for switching the radiant air conditioner to the heating operation mode, including:

When the radiant air conditioner is currently operating in cooling or dehumidification mode, detect the current indoor temperature and humidity;

When the current indoor temperature is lower than the dew point temperature corresponding to the current indoor humidity, control the operating frequency of the compressor of the radiant air conditioner to reduce to the minimum operating frequency;

After controlling the radiant air conditioner to run at the minimum operating frequency for a first preset period of time, detecting the system pressure difference on both sides of the four-way valve of the radiant air conditioner;

When the system pressure difference is less than or equal to a preset threshold, the radiant air conditioner is controlled to switch to a heating operation mode.

Further, the step of adjusting the heating operation frequency of the radiant air conditioner and controlling the shutdown of the radiant air conditioner after a second preset period of time specifically includes:

Controlling the radiant air conditioner to rise to a preset drying frequency, and controlling the radiant air conditioner to shut down after the radiant air conditioner operates at the preset drying frequency for a second preset time.

Further, after the radiant air conditioner switches to the heating operation mode, the control method further includes:

The surface temperature of the evaporator is monitored and the operating frequency of the compressor is adjusted based on said surface temperature.

Further, the step of monitoring the surface temperature of the evaporator and adjusting the operating frequency of the compressor according to the surface temperature specifically includes:

When the surface temperature is greater than a first preset temperature value, reduce the operating frequency of the compressor at a first preset rate;

When the surface temperature is greater than a second preset temperature value, reduce the operating frequency of the compressor at a second preset rate;

When the surface temperature is greater than a third preset temperature value, controlling the compressor to stop;

Wherein, the first preset temperature value<the second preset temperature value<the third preset temperature value, and the first preset rate<the second preset rate.

Further, the first preset temperature value is 56°C, the second preset temperature value is 58°C, and the third preset temperature value is 60°C.

Further, when it is detected that the radiant air conditioner is in the heating operation mode, the radiant air conditioner is controlled to stop.

Further, when reducing the operating frequency of the radiant air conditioner, the following steps are also performed:

Outputting a prompt that the radiant air conditioner operates in a dry mode.

Further, the step of outputting a reminder that the radiant air conditioner is running in a dry mode specifically includes:

Displaying on the display panel of the radiant air conditioner a reminder that the radiant air conditioner is running in a drying mode; or,

Outputting a voice prompt for the radiant air conditioner to operate in a drying mode; or,

Sending a reminder that the radiant air conditioner is running in a dry mode to a terminal connected to the radiant air conditioner.

The present invention further proposes a radiant air conditioner, which includes a memory, a processor, and a control program stored in the memory and running on the processor. When the control program is executed by the processor, the above-mentioned The steps of the control method of the radiant air conditioner.

The present invention also proposes a storage medium, the storage medium stores a control program, and when the control program is executed by a processor, the steps of the above-mentioned method for controlling a radiant air conditioner are realized.

The control method of the radiant air conditioner in the embodiment of the present invention detects the current operating mode of the radiant air conditioner when receiving a shutdown command, and when the current operating mode is cooling or dehumidification, reduces the operating frequency of the radiant air conditioner, and in the first After a preset period of time, control the radiant air conditioner to switch to the heating operation mode, adjust the heating operation frequency of the radiant air conditioner, and control the radiant air conditioner to stop after a second preset period of time to complete the condensation on the surface of the evaporator Drying avoids the condensation on the surface of the evaporator after shutdown to breed mold and produce peculiar smell, which affects the air quality and comfort of the air conditioner, and improves the cleanliness and comfort of the radiant air conditioner.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic diagram of the hardware structure of an embodiment of the radiant air conditioner of the present invention;

Fig. 2 is a flowchart of an embodiment of the control method of the radiant air conditioner of the present invention;

FIG. 3 is a specific flowchart of an embodiment of step S20 in FIG. 2 .

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in FIG. 1 , FIG. 1 is a schematic diagram of the hardware structure of an embodiment of the radiant air conditioner of the present invention.

As shown in FIG. 1 , the radiant air conditioner 100 may include: a processor 1001 , such as a CPU, a network interface 1004 , a user interface 1003 , a memory 1005 , and a communication bus 1002 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The user interface 1003 may include a display unit (Display), an input unit such as an interactive interface. In the present invention, the radiant air conditioner 100 can interact with the user terminal during the software running process. When setting or debugging the radiant air conditioner 100, the test Personnel or setup personnel can use the user interface 1003 to input data information, and the optional user interface 1003 can also include standard wired interfaces and wireless interfaces. Optionally, the network interface 1004 may include a standard wired interface and a wireless interface (such as a WI-FI interface). The memory 1005 can be a high-speed RAM memory, or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001 .

Optionally, the radiant air conditioner 100 may further include a camera, an RF (Radio Frequency, radio frequency) circuit, a sensor, an audio circuit, a WiFi module and the like. Among them, sensors such as light sensors, motion sensors, air quality sensors, and others. Specifically, the light sensor can include an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display unit according to the brightness of the ambient light, and the proximity sensor can turn on the display unit and the / or backlighting. As a kind of motion sensor, the gravity acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of mobile terminal posture (such as magnetometer posture calibration ), vibration recognition related functions (such as knocking), etc.; as an environmental detection element, the air quality sensor can be a temperature sensor, a humidity sensor, a carbon dioxide sensor, and a PM2.5 sensor, and the air quality sensor in this embodiment is preferably a temperature and humidity sensor Sensors, so as to detect the indoor and outdoor temperature and humidity of the environment where the radiant air conditioner is located; of course, the radiant air conditioner 100 can also be equipped with other sensors such as gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which will not be repeated here.

Those skilled in the art can understand that the hardware structure shown in FIG. 1 does not constitute a limitation to the radiant air conditioner 100 , and may include more or less components than shown in the figure, or combine some components, or arrange different components.

The main solution of the embodiment of the present invention is to detect the current operating mode of the radiant air conditioner when a shutdown command is received, and when the current operating mode is cooling or dehumidification, reduce the operating frequency of the radiant air conditioner, and After setting the duration, control the radiant air conditioner to switch to the heating operation mode, adjust the heating operation frequency of the radiant air conditioner, and control the radiant air conditioner to stop after the second preset duration, so as to complete the drying of the condensation on the surface of the evaporator It avoids the condensation on the surface of the evaporator after shutdown to breed mold and produce peculiar smell, which affects the air quality and comfort of the air conditioner, and improves the cleanliness and comfort of the radiant air conditioner.

As shown in FIG. 1 , the memory 1005 as a computer storage medium may include an operating system, a network communication module, and a control program.

In the radiant air conditioner 100 shown in FIG. 1 , the radiant air conditioner 100 is provided with a temperature sensor to detect the indoor temperature and the surface temperature of the evaporator. Perform data communication; the user interface 1003 is mainly used to connect to the client (client), and perform data communication with the client;

When a shutdown command is received, detect the current operating mode of the radiant air conditioner;

When the current operation mode is cooling or dehumidification, reduce the operating frequency of the radiant air conditioner, and control the radiant air conditioner to switch to the heating operation mode after a first preset period of time;

The heating operation frequency of the radiant air conditioner is adjusted, and the radiant air conditioner is controlled to stop after a second preset period of time.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

When the current operation mode is cooling or dehumidification, control the radiant air conditioner to reduce to the minimum operating frequency, and control the radiant air conditioner to switch to Heating mode of operation.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

When the radiant air conditioner is currently operating in cooling or dehumidification mode, detect the current indoor temperature and humidity;

When the current indoor temperature is lower than the dew point temperature corresponding to the current indoor humidity, control the operating frequency of the compressor of the radiant air conditioner to reduce to the minimum operating frequency;

After controlling the radiant air conditioner to run at the minimum operating frequency for a first preset period of time, detecting the system pressure difference on both sides of the four-way valve of the radiant air conditioner;

When the system pressure difference is less than or equal to a preset threshold, the radiant air conditioner is controlled to switch to a heating operation mode.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

Controlling the radiant air conditioner to rise to a preset drying frequency, and controlling the radiant air conditioner to shut down after the radiant air conditioner operates at the preset drying frequency for a second preset time.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

The surface temperature of the evaporator is monitored and the operating frequency of the compressor is adjusted based on said surface temperature.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

When the surface temperature is greater than a first preset temperature value, reduce the operating frequency of the compressor at a first preset rate;

When the surface temperature is greater than a second preset temperature value, reduce the operating frequency of the compressor at a second preset rate;

When the surface temperature is greater than a third preset temperature value, controlling the compressor to stop;

Wherein, the first preset temperature value<the second preset temperature value<the third preset temperature value, and the first preset rate<the second preset rate.

Further, the first preset temperature value is 56°C, the second preset temperature value is 58°C, and the third preset temperature value is 60°C.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

When it is detected that the radiant air conditioner is in the heating operation mode, the radiant air conditioner is controlled to stop.

Further, when reducing the operating frequency of the radiant air conditioner, the processor 1001 can also call the control program stored in the memory 1005 to perform the following operations:

Outputting a prompt that the radiant air conditioner operates in a dry mode.

Further, the processor 1001 may also call the control program stored in the memory 1005 to perform the following operations:

Displaying on the display panel of the radiant air conditioner a reminder that the radiant air conditioner is running in a drying mode; or,

Outputting a voice prompt for the radiant air conditioner to operate in a drying mode; or,

Sending a reminder that the radiant air conditioner is running in a dry mode to a terminal connected to the radiant air conditioner.

The present invention further proposes a control method for a radiant air conditioner.

Referring to FIG. 2 , FIG. 2 is a flow chart of an embodiment of the control method of the radiant air conditioner of the present invention.

In this embodiment, the control method includes the following steps:

S10: Detect the current operating mode of the radiant air conditioner when a shutdown command is received;

S20: When the current operation mode is cooling or dehumidification, reduce the operating frequency of the radiant air conditioner, and control the radiant air conditioner to switch to a heating operation mode after a first preset period of time;

S30: Adjust the heating operation frequency of the radiant air conditioner, and control the radiant air conditioner to stop after a second preset period of time.

Radiant air conditioning refers to reducing or raising the temperature of one or more surfaces in the inner surface of the enclosure structure to form a cold radiation surface or a heat radiation surface, relying on the radiation heat exchange between the radiation surface and the human body, furniture and other surfaces of the enclosure structure for supply Technical method of cooling or heating. The radiant surface can be realized by setting cold (hot) pipes in the enclosure structure, or adding radiant panels on the ceiling or the outer surface of the wall. Due to the temperature changes of the radiant surface, the enclosure structure and the surface of the furniture, the gap between them and the air The convective heat transfer is strengthened, and the effect of cooling or heating is enhanced, so as to achieve more than 50% of the total heat exchange amount by radiation exchange.

In this embodiment, the control method of the radiant air conditioner is mainly used to solve the problem that the evaporator condenses and hangs water when the radiant air conditioner is refrigerated or dehumidified, and the mold grows after the radiant air conditioner is shut down, which affects the air quality and comfort of the air conditioner. After receiving the shutdown command, control the radiant air conditioner to reduce the operating frequency of the compressor to balance the system pressure difference on both sides of the four-way valve, then switch the radiant air conditioner to the heating mode, and use the high-temperature and high-pressure gaseous refrigerant output from the compressor to flow through the The evaporator dries it, avoiding mold growth on the surface of the evaporator after shutdown, affecting the air quality and comfort of the air conditioner, and improving the cleanliness and comfort of the radiant air conditioner. The specific operations are as follows:

Since there are many ways to close the radiant air conditioner, it can be automatically closed or manually closed by the user. For example, the user can close the radiant air conditioner through the remote terminal; The infrared detection device in the room detects the heat source in the room that conforms to the parameters of the human body heat map. When it is determined that there is no one in the room for a set period of time, a corresponding shutdown command is automatically generated to control the shutdown of the radiant air conditioner; when the air conditioner is neither equipped with image acquisition When the unit is not equipped with an infrared detection device, indoor monitoring can be realized according to the image acquisition unit or infrared detection device of other household appliances connected to the radiant air conditioner. When it is determined that no one exists, a shutdown command can be generated after a set period of time.

When the radiant air conditioner receives the shutdown command, it detects the current operating mode, and when the current operating mode of the air conditioner is in cooling mode or dehumidification mode, the radiant air conditioner is mainly used to release cooling energy into the enclosure structure composed of the indoor space , the indoor temperature may drop below the dew point temperature, resulting in condensation and hanging water on the surface of the evaporator of the radiant air conditioner. Dry the condensation formed on the surface of the evaporator, but because the radiant air conditioner is currently operating in cooling or dehumidification mode, the system pressure difference on both sides of the four-way valve is relatively large, and direct mode switching will easily damage the four-way valve and even cause damage to the compressor and air conditioner. If the air conditioner fails, it is necessary to reduce the system pressure difference on both sides of the four-way valve first. The conventional method is to stop the air conditioner for 3-5 minutes, but restarting after stopping will affect the user's judgment on the stop command of the air conditioner, so this implementation In the control method of the example, the operating frequency of the radiant air conditioner is controlled to reduce the operating frequency of the compressor. After the operating frequency of the compressor is reduced, the work performed by the compressor on the refrigerant is reduced, and the system pressure difference on both sides of the four-way valve will gradually tend to balance. After running for the first preset time, the first preset time will form different design values according to the model, capacity and power of the air conditioner. In this embodiment, the first preset time is 20 seconds. After the air conditioner runs for 20 seconds, the system pressure difference on both sides of the four-way valve reaches the preset range by default. At this time, the current operation mode of the radiant air conditioner is controlled to switch to the heating operation mode, and the condensation on the surface of the evaporator is dried. In order to improve the drying efficiency of condensation on the surface of the evaporator and shorten the downtime of the radiant air conditioner, when the radiant air conditioner is switched to the heating operation mode, the operating frequency of the control compressor is gradually increased.

When the radiant air conditioner is in the heating mode, the high-temperature and high-pressure gaseous refrigerant output by the compressor passes through the four-way valve and directly enters the evaporator, and the high-temperature heat carried by the gaseous refrigerant dries the condensation on the surface of the evaporator. The heat output of the radiant air conditioner improves the indoor comfort, and at the same time shortens the downtime of the radiant air conditioner and reduces energy consumption. After the radiant air conditioner runs for a second preset time, the second preset time is 150 seconds. After the air conditioner runs for 150 seconds, the condensation on the surface of the evaporator is dried by default. At this time, the radiant air conditioner is controlled to stop, so as to reduce energy consumption, maintain indoor cooling capacity and improve comfort.

The control method of the radiant air conditioner in the embodiment of the present invention detects the current operating mode of the radiant air conditioner when receiving a shutdown command, and when the current operating mode is cooling or dehumidification, reduces the operating frequency of the radiant air conditioner, and in the first After a preset period of time, control the radiant air conditioner to switch to the heating operation mode, adjust the heating operation frequency of the radiant air conditioner, and control the radiant air conditioner to stop after a second preset period of time to complete the condensation on the surface of the evaporator Drying avoids the condensation on the surface of the evaporator after shutdown to breed mold and produce peculiar smell, which affects the air quality and comfort of the air conditioner, and improves the cleanliness and comfort of the radiant air conditioner.

Further, referring to FIG. 2 , the method for controlling the radiant air conditioner based on the above-mentioned embodiments, step S20, specifically includes:

When the current operation mode is cooling or dehumidification, control the radiant air conditioner to reduce to the minimum operating frequency, and control the radiant air conditioner to switch to Heating mode of operation.

In this embodiment, when the radiant air conditioner receives the shutdown command, it detects the current operating mode, and when the current operating mode of the air conditioner is in the cooling mode or dehumidification mode, the radiant air conditioner is mainly used to supply the surrounding environment of the indoor space. If the cold energy is released in the protective structure, the indoor temperature may drop below the dew point temperature, so that condensation will hang on the surface of the evaporator of the radiant air conditioner. The output high-temperature and high-pressure gaseous refrigerant dries the condensation formed on the surface of the evaporator. However, since the radiant air conditioner is currently operating in cooling or dehumidification mode, the system pressure difference on both sides of the four-way valve is large, and direct mode switching is easy to damage the four-way valve. It may even cause failure of the compressor and air conditioner, so it is necessary to reduce the system pressure difference on both sides of the four-way valve first. The conventional method is to stop the air conditioner for 3-5 minutes, but restarting after stopping will affect the user's ability to stop the air conditioner. Therefore, the control method of this embodiment reduces the operating frequency by controlling the radiant air conditioner until the minimum operating frequency of the compressor is reached. After the operating frequency of the compressor is reduced, the work done by the compressor on the refrigerant is reduced, and the two sides of the four-way valve The system pressure difference will gradually tend to balance. After the radiant air conditioner is controlled to run at the minimum operating frequency for a first preset time, the first preset time will form different Design value, the first preset duration in this embodiment is 20 seconds. After the radiant air conditioner runs at the minimum operating frequency for 20 seconds, the system pressure difference on both sides of the four-way valve reaches the preset range by default. control the current operation mode of the radiant air conditioner to switch to the heating operation mode, and dry the condensation on the surface of the evaporator. Since the air conditioner is currently operating at the minimum operating frequency, in order to improve the drying efficiency of the condensation on the surface of the evaporator, To shorten the downtime of the radiant air conditioner, when the radiant air conditioner is switched to the heating operation mode, the operating frequency of the control compressor is gradually increased until it reaches the preset drying frequency, which is the highest outdoor temperature in the current mode The operating frequency of the zone, that is, the maximum operating frequency at which the radiant air conditioner can heat at the current temperature.

Further, referring to Fig. 2, the control method of the radiant air conditioner based on the above-mentioned embodiment, step S30, specifically includes:

Controlling the radiant air conditioner to rise to a preset drying frequency, and controlling the radiant air conditioner to shut down after the radiant air conditioner operates at the preset drying frequency for a second preset time.

In this embodiment, when the radiant air conditioner operates in the heating mode, the high-temperature and high-pressure gaseous refrigerant output by the compressor passes through the four-way valve and directly enters the evaporator, and the high-temperature heat carried by the gaseous refrigerant dries the condensation on the surface of the evaporator. dry, in order to reduce the heat output of the radiant air conditioner so as to improve indoor comfort, and also shorten the downtime of the radiant air conditioner and reduce energy consumption, after the radiant air conditioner operates at the preset drying frequency for a second preset time, the The second preset duration is 150 seconds. After the radiant air conditioner operates at the preset drying frequency for 150 seconds, the condensation on the surface of the evaporator is dried by default. At this time, the radiant air conditioner is controlled to stop to reduce energy consumption. Keeps the interior cool for increased comfort.

The control method of the radiant air conditioner in the embodiment of the present invention detects the current operating mode of the radiant air conditioner when receiving a shutdown command, and when the current operating mode is cooling or dehumidification, controls the operating frequency of the radiant air conditioner to be minimized, and then controls the The radiant air conditioner operates at the minimum operating frequency for a first preset time, and then switches the radiant air conditioner to the heating operation mode, and controls the operating frequency of the radiant air conditioner to rise to a preset drying frequency, and the radiant air conditioner operates at the specified drying frequency. After the preset drying frequency runs for the second preset time, the radiant air conditioner is controlled to shut down to complete the drying of the condensation on the surface of the evaporator, which prevents the condensation on the surface of the evaporator from breeding mold and producing peculiar smell, which affects the performance of the air conditioner. The quality and comfort of the air outlet improves the cleanliness and comfort of the radiant air conditioner.

Further, referring to FIG. 3 , when the current operating mode is refrigeration or dehumidification, control the radiant air conditioner to reduce to the minimum operating frequency, and run the radiant air conditioner at the minimum operating frequency for a first preset time period Finally, the step of controlling the radiant air conditioner to switch to the heating operation mode specifically includes:

S21: When the radiant air conditioner is currently operating in cooling or dehumidification mode, detect the current indoor temperature and humidity;

S22: When the current indoor temperature is lower than the dew point temperature corresponding to the current indoor humidity, control the operating frequency of the compressor of the radiant air conditioner to reduce to the minimum operating frequency;

S23: After controlling the radiant air conditioner to run at the minimum operating frequency for a first preset time period, detect the system pressure difference on both sides of the four-way valve of the radiant air conditioner;

S24: When the system pressure difference is less than or equal to a preset threshold, control the radiant air conditioner to switch to a heating operation mode.

In this embodiment, there are two reasons why condensation occurs on the surface of the evaporator of the radiant air conditioner: one is that the current indoor temperature is lower than the dew point temperature. , the temperature when cooled to saturation, figuratively speaking, is the temperature when the water vapor in the air turns into dewdrops. The dew point temperature is a temperature value, but when the water vapor in the air has reached saturation, the temperature is the same as the dew point temperature. When saturation is reached, the air temperature must be higher than the dew point temperature, so the difference between the dew point temperature and the air temperature can indicate the degree of water vapor in the air from saturation, that is, the air humidity; the other is that the current air humidity has reached saturation. Therefore, when it is detected that the radiant air conditioner is currently operating in cooling or dehumidification mode, the current indoor temperature and humidity can be further detected. Only when the current indoor temperature is lower than the dew point temperature corresponding to the current indoor humidity, the evaporator surface of the radiant air conditioner Condensation will be formed, and it is necessary to carry out condensation drying on the surface of the evaporator, and then control the operating frequency of the compressor of the radiant air conditioner to the minimum operating frequency, so as to reduce the system pressure difference on both sides of the four-way valve and provide radiation The air conditioner is switched to the heating mode to prepare for drying the condensation on the surface of the evaporator, which improves the control accuracy of the radiant air conditioner and reduces energy consumption.

The main purpose of reducing the operating frequency of the compressor of the radiant air conditioner is to balance the system pressure difference on both sides of the four-way valve, so as to avoid damage to the four-way valve due to excessive system pressure difference when the radiant air conditioner is directly switched from cooling mode or dehumidification mode to heating mode. It may even cause compressor failure, affecting the stability and life of the radiant air conditioner. Therefore, after the radiant air conditioner is controlled to run at the minimum frequency of the compressor for the first preset time, the system pressure difference on both sides of the four-way valve of the radiant air conditioner is detected. , when the system pressure difference is less than or equal to the preset threshold, that is, when the system pressure on both sides of the four-way valve is basically balanced, the four-way valve will not be damaged when the radiant air conditioner is controlled to switch to the heating operation mode. The current operation mode of the radiant air conditioner is switched to the heating operation mode, and the condensation on the surface of the evaporator is dried. Since the air conditioner is currently operating at the minimum operating frequency, in order to improve the drying efficiency of the condensation on the surface of the evaporator, the radiation During the downtime of the air conditioner, when the radiant air conditioner is switched to the heating operation mode, the operating frequency of the control compressor is gradually increased until it reaches the preset drying frequency, which is the maximum outdoor temperature area in the current mode. The operating frequency is the maximum operating frequency at which the radiant air conditioner can heat at the current temperature.

Further, after the radiant air conditioner switches to the heating operation mode, the control method further includes:

The surface temperature of the evaporator is monitored and the operating frequency of the compressor is adjusted based on said surface temperature.

In this embodiment, since the radiant air conditioner is in the cooling or dehumidification operation mode when receiving the shutdown command, it can be known that the outdoor temperature is relatively high, and the user wants to use the radiant air conditioner to maintain a comfortable environment where the indoor temperature is lower than the After the current operating mode of the air conditioner is switched to heating mode, with the inflow of high-temperature and high-pressure gaseous refrigerant, the temperature on the surface of the evaporator gradually rises, and because the evaporator is mounted on the inner surface of the enclosure structure formed by the wall against the wall, When the surface temperature of the evaporator is too high, it is easy to burn the user, so after switching the radiant air conditioner to the heating operation mode, it is necessary to monitor the surface temperature of the evaporator, and adjust the operating frequency of the compressor according to the surface temperature. In order to prevent the surface temperature of the evaporator from being too high during the drying process of the condensation on the surface of the evaporator, which may scald the user, and improve the safety of the radiant air conditioner.

Further, the step of monitoring the surface temperature of the evaporator and adjusting the operating frequency of the compressor according to the surface temperature specifically includes:

When the surface temperature is greater than a first preset temperature value, reduce the operating frequency of the compressor at a first preset rate;

When the surface temperature is greater than a second preset temperature value, reduce the operating frequency of the compressor at a second preset rate;

When the surface temperature is greater than a third preset temperature value, controlling the compressor to stop;

Wherein, the first preset temperature value<the second preset temperature value<the third preset temperature value, and the first preset rate<the second preset rate.

In this embodiment, when the operating frequency of the compressor is adjusted through the surface temperature of the evaporator, the surface temperature is mainly compared with a preset temperature value to perform compression according to the temperature level of the surface temperature Adjustment, quick adjustment or shutdown of the operating frequency of the compressor, specifically: when the surface temperature is greater than a first preset temperature value, reduce the operating frequency of the compressor at a first preset rate, and the first preset temperature value is 56°C, the operating frequency of the compressor may start to drop from the preset drying frequency, or start to drop from a certain frequency lower than the preset drying frequency. When the operating frequency, the operating frequency of the compressor will not drop to the minimum operating frequency; when the surface temperature is greater than the second preset temperature value, the operating frequency of the compressor is reduced at a second preset rate, and the second preset The temperature value is greater than the first preset temperature value, the second preset rate is greater than the first preset rate, the second preset temperature value is 58°C, and the operating frequency of the compressor may be from The preset drying frequency begins to decrease, possibly from a frequency lower than the preset drying frequency, and the compressor operating frequency can be reduced to a minimum while decreasing the operating frequency of the compressor at said second preset rate Operating frequency; when the surface temperature is greater than the third preset temperature value, the radiant air conditioner is directly controlled to stop, so as to prevent the high-temperature and high-pressure gaseous refrigerant output by the compressor from being delayed or delayed from further increasing the surface temperature of the evaporator, increasing the user's The risk of the evaporator being scalded, the third preset temperature value is 60°C.

Further, referring to FIG. 2, the control method of the radiant air conditioner of the present application further includes the following steps:

S40: When the radiant air conditioner is in the heating operation mode, control the radiant air conditioner to stop.

In this embodiment, when the radiant air conditioner is in the heating operation mode and the indoor temperature is higher than the dew point temperature, it is impossible to form condensation on the surface of the evaporator of the radiant air conditioner, and it is not easy to breed mold, so the radiant air conditioner can be directly controlled shutdown to reduce energy consumption.

Further, when reducing the operating frequency of the radiant air conditioner, the following steps are also performed:

Outputting a prompt that the radiant air conditioner operates in a dry mode.

In this embodiment, in order to avoid giving the user the illusion that the radiant air conditioner does not accept the shutdown command control, when the radiant air conditioner is controlled to drop to the minimum operating frequency, a prompt for the dry operation mode of the radiant air conditioner is output to the user, further Improved user experience.

Further, the step of outputting a reminder that the radiant air conditioner is running in a dry mode specifically includes:

Displaying on the display panel of the radiant air conditioner a reminder that the radiant air conditioner is running in a drying mode; or,

Outputting a voice prompt for the radiant air conditioner to operate in a drying mode; or,

Sending a reminder that the radiant air conditioner is running in a dry mode to a terminal connected to the radiant air conditioner.

In this embodiment, when the radiant air conditioner is controlled to drop to the minimum operating frequency, a prompt for the dry operation mode of the radiant air conditioner is output, for example, when it is detected that the user is far away from the radiant air conditioner, the voice of the dry operation mode of the radiant air conditioner can be output Prompt, or when detecting that the user is far away from the radiant air conditioner through the proximity sensor or camera, output the voice prompt of the dry operation mode of the radiant air conditioner, or when the proximity sensor or camera detects that the user is within the visible range of the radiant air conditioner , the display panel of the radiant air conditioner displays a reminder of the dry operation mode of the radiant air conditioner, and the reminder of the dry operation mode of the radiant air conditioner can be a flashing reminder or a text prompt. The display panel of the radiant air conditioner is also used to display water temperature parameters, air quality parameters, current indoor and outdoor temperature parameters, time parameters and the like. In addition, when it is detected that the radiant air conditioner can be connected to a terminal device, such as a mobile phone, a PAD, or a tablet, a reminder that the radiant air conditioner is running in a dry mode is sent to the terminal device, so as to avoid causing the user that the radiant air conditioner does not accept the shutdown command control failure Illusion, improve user experience.

After outputting the reminder of the dry operation mode of the radiant air conditioner to the user, based on general logical thinking, when the current operation mode of the radiant air conditioner is contrary to its own intention, the user will give corresponding feedback information, such as the current shutdown of the radiant air conditioner is In the event of a misoperation, the user may feedback refrigeration instruction information. The instruction information can be a voice instruction, a text instruction, a button-based gesture operation or an image recognition-based gesture action. After receiving the user's feedback information, The user intention is obtained according to the feedback information, and then corresponding adjustment instructions are generated to adjust the operating parameters of the radiant air conditioner, thereby improving the comfort of the radiant air conditioner.

In addition, an embodiment of the present invention also provides a storage medium, the storage medium stores a control program, and when the control program is executed by a processor, the steps of the above-mentioned method for controlling a radiant air conditioner are implemented.

Wherein, the method implemented when the control program is executed can refer to various embodiments of the control method of the radiant air conditioner of the present invention, which will not be repeated here.

It should be noted that, as used herein, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or system comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or system. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system comprising that element.

The serial numbers of the above embodiments of the present invention are for description only, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product in essence or in other words, the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM) as described above. , magnetic disk, optical disk), including several instructions to make a terminal device (which may be a mobile phone, computer, server, radiant air conditioner, or network device, etc.) execute the methods described in various embodiments of the present invention.

The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related technical fields , are all included in the scope of patent protection of the present invention in the same way.

Claims (12)

1. A control method for a radiant air conditioner, characterized in that the control method may further comprise the steps: When a shutdown command is received, detect the current operating mode of the radiant air conditioner; When the current operation mode is cooling or dehumidification, reduce the operating frequency of the radiant air conditioner, and control the radiant air conditioner to switch to the heating operation mode after a first preset period of time; The heating operation frequency of the radiant air conditioner is adjusted, and the radiant air conditioner is controlled to stop after a second preset period of time. 2. The control method according to claim 1, wherein when the current operation mode is cooling or dehumidification, reduce the operating frequency of the radiant air conditioner, and control the The steps for switching the radiant air conditioner to the heating operation mode include: When the current operation mode is cooling or dehumidification, control the radiant air conditioner to reduce to the minimum operating frequency, and control the radiant air conditioner to switch to Heating mode of operation. 3. The control method according to claim 2, wherein when the current operating mode is refrigeration or dehumidification, the radiant air conditioner is controlled to reduce to the minimum operating frequency, and the radiant air conditioner is operated at the After running at the minimum operating frequency for the first preset time, the step of controlling the radiant air conditioner to switch to the heating operation mode specifically includes: When the radiant air conditioner is currently operating in cooling or dehumidification mode, detect the current indoor temperature and humidity; When the current indoor temperature is lower than the dew point temperature corresponding to the current indoor humidity, control the operating frequency of the compressor of the radiant air conditioner to reduce to the minimum operating frequency; After controlling the radiant air conditioner to run at the minimum operating frequency for a first preset period of time, detecting the system pressure difference on both sides of the four-way valve of the radiant air conditioner; When the system pressure difference is less than or equal to a preset threshold, the radiant air conditioner is controlled to switch to a heating operation mode. 4. The control method according to claim 2, characterized in that the step of adjusting the heating operation frequency of the radiant air conditioner and controlling the shutdown of the radiant air conditioner after a second preset period of time specifically includes: Controlling the radiant air conditioner to rise to a preset drying frequency, and controlling the radiant air conditioner to shut down after the radiant air conditioner operates at the preset drying frequency for a second preset time. 5. The control method according to any one of claims 1-4, characterized in that, after the radiant air conditioner switches to the heating operation mode, the control method further comprises: The surface temperature of the evaporator is monitored and the operating frequency of the compressor is adjusted based on said surface temperature. 6. The control method according to claim 5, wherein the step of monitoring the surface temperature of the evaporator and adjusting the operating frequency of the compressor according to the surface temperature specifically includes: When the surface temperature is greater than a first preset temperature value, reduce the operating frequency of the compressor at a first preset rate; When the surface temperature is greater than a second preset temperature value, reduce the operating frequency of the compressor at a second preset rate; When the surface temperature is greater than a third preset temperature value, controlling the compressor to stop; Wherein, the first preset temperature value<the second preset temperature value<the third preset temperature value, and the first preset rate<the second preset rate. 7. The control method according to claim 6, wherein the first preset temperature value is 56°C, the second preset temperature value is 58°C, and the third preset temperature value is 60°C. ℃. 8. The control method according to claim 1, characterized in that, when it is detected that the radiant air conditioner is in a heating operation mode, the radiant air conditioner is controlled to shut down. 9. The control method according to any one of claims 1-4, characterized in that, when reducing the operating frequency of the radiant air conditioner, the following steps are also performed: Outputting a prompt that the radiant air conditioner operates in a dry mode. 10. The control method according to claim 9, characterized in that, the step of outputting a reminder that the radiant air conditioner is running in a dry mode specifically includes: Displaying on the display panel of the radiant air conditioner a reminder that the radiant air conditioner is running in a drying mode; or, Outputting a voice prompt for the radiant air conditioner to operate in a drying mode; or, Sending a reminder that the radiant air conditioner is running in a dry mode to a terminal connected to the radiant air conditioner. 11. A radiant air conditioner, characterized in that the radiant air conditioner comprises a memory, a processor, and a control program stored in the memory and run on the processor, when the control program is executed by the processor, the following The steps of the control method for radiant air conditioning according to any one of claims 1-10. 12. A storage medium, characterized in that the storage medium stores a control program, and when the control program is executed by a processor, the steps of the method for controlling a radiant air conditioner according to any one of claims 1-10 are realized.