WO2024093236A1 - Air conditioner indoor unit control method and apparatus, and electric control box and storage medium - Google Patents

Abstract

Provided in the present application are an air conditioner indoor unit control method and apparatus, and an electric control box and a storage medium. The method comprises: acquiring a shutdown duration after an air conditioner indoor unit reaches a temperature and is thus shut down; if the shutdown duration reaches a first preset duration, updating a restart temperature of the air conditioner indoor unit according to a temperature control mode of an air conditioner, wherein the temperature control mode is a refrigeration mode or a heating mode; according to the updated restart temperature and an ambient temperature measured by means of an ambient temperature sensor, determine whether to start the air conditioner indoor unit again; and if it is determined that the air conditioner indoor unit is started again, the air conditioner indoor unit is started, so that a heat exchanger executes a heat exchange operation for an environment where the air conditioner indoor unit is located. The method in the present application improves the accuracy of restarting an air conditioner, and reduces the energy consumption of the air conditioner.

Description

Air conditioner indoor unit control method, device, electric control box and storage medium

This application claims priority to a Chinese patent application filed with the China Patent Office on November 3, 2022, with application number 202211372682X and application name “Air Conditioner Indoor Unit Control Method, Device, Electric Control Box and Storage Medium”, all contents of which are incorporated by reference in this application.

Technical Field

The present application belongs to the field of intelligent device control, and specifically relates to a method, device, electric control box and storage medium for controlling an indoor unit of an air conditioner.

Background technique

Air conditioners usually have a temperature control function to reduce energy consumption. Taking air conditioning heating as an example, the operation process of the temperature control of the air conditioner is that when the air conditioner is running, when the ambient temperature detected by the air conditioner indoor unit reaches the target temperature, it stops running. Then wait for the ambient temperature to naturally cool down to not meet the target temperature, the air conditioner indoor unit restarts, and adjusts the ambient temperature again to meet the target temperature. However, when the ambient temperature sensor of the air conditioner indoor unit is located above the heat exchanger of the air conditioner indoor unit, the ambient temperature collected by the ambient temperature sensor will be affected by the temperature radiation of the heat exchanger, resulting in the temperature collected by the ambient temperature sensor not matching the actual ambient temperature. For example, when heating, the ambient temperature collected by the ambient temperature sensor is higher than the actual ambient temperature, resulting in the actual ambient temperature reaching the restart temperature after the air conditioner indoor unit stops, but the ambient temperature collected by the ambient temperature sensor has not yet reached the restart temperature, resulting in the problem of poor accuracy of air conditioner restart.

At present, after the indoor unit of the air conditioner stops due to reaching the temperature, the accuracy of restarting the air conditioner is improved mainly by maintaining the fan of the indoor unit of the air conditioner in operation to take away the radiation temperature on the heat exchanger.

However, the method of improving the accuracy of restarting the air conditioner by maintaining the fan operation has the problem of high energy consumption of the air conditioner.

Summary of the invention

The present application provides an air conditioner indoor unit control method, device, electric control box and storage medium, which are used to solve the problems of poor accuracy of air conditioner restart and high air conditioner energy consumption in the prior art.

In a first aspect, the present application provides a method for controlling an indoor unit of an air conditioner, comprising:

Obtaining the downtime of the indoor unit of the air conditioner after reaching the temperature and shutting down;

If the shutdown time reaches a first preset time, the restart temperature of the indoor unit of the air conditioner is updated according to the temperature control mode of the air conditioner; the temperature control mode is a cooling mode or a heating mode;

Determining whether to restart the air conditioner indoor unit according to the updated restart temperature and the ambient temperature detected by the ambient temperature sensor;

If it is determined to restart the air conditioner indoor unit, the air conditioner indoor unit is started, so that the heat exchanger performs a heat exchange operation for the environment where the air conditioner indoor unit is located.

In a second aspect, the present application provides an air conditioner indoor unit control device, comprising:

An acquisition module, used to acquire the downtime length of the air conditioner indoor unit after reaching the temperature and shutting down;

A processing module is used to update the restart temperature of the air conditioner indoor unit if the shutdown time reaches a first preset time, according to the temperature control mode of the air conditioner; the temperature control mode is a cooling mode or a heating mode; according to the updated restart temperature and the ambient temperature detected by the ambient temperature sensor, determine whether to restart the air conditioner indoor unit; if it is determined to restart the air conditioner indoor unit, start the air conditioner indoor unit so that the heat exchanger performs a heat exchange operation for the environment where the air conditioner indoor unit is located.

In a third aspect, the present application provides an electric control box, comprising: a processor, and a memory communicatively connected to the processor;

The memory stores computer-executable instructions;

The processor executes the computer-executable instructions stored in the memory to implement the method as described in any one of the first aspects.

In a fourth aspect, the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are executed by a processor, they are used to implement the method as described in any one of the first aspects.

In a fifth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the method as described in any one of the first aspects.

The air conditioner indoor unit control method, device, electric control box and storage medium provided by the present application continuously and linearly update the restart temperature of the air conditioner indoor unit according to the temperature control mode of the air conditioner by the shutdown time after the air conditioner indoor unit stops at the temperature, thereby eliminating the error of the ambient temperature detected by the ambient temperature sensor caused by the temperature radiation of the heat exchanger, thereby improving the accuracy of the air conditioner restart. In addition, the method does not need to keep the indoor unit fan running after the air conditioner indoor unit stops at the temperature, thereby reducing energy consumption.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the description are used to explain the principles of the present application:

FIG1 is a schematic diagram of an air conditioning structure provided by the present application;

FIG2 is a schematic flow chart of a method for controlling an indoor unit of an air conditioner provided in an embodiment of the present application;

FIG3 is a schematic diagram of a flow chart of updating the restart temperature of an indoor unit of an air conditioner provided by the present application;

FIG4 is a flow chart of a method for controlling an indoor unit of an air conditioner in a heating mode provided by an embodiment of the present application;

FIG5 is a flow chart of a method for controlling an indoor unit of an air conditioner in a cooling mode provided by an embodiment of the present application;

FIG6 is a schematic structural diagram of an air conditioner indoor unit control device provided in an embodiment of the present application;

FIG. 7 is a schematic diagram of the structure of an electric control box provided in an embodiment of the present application.

The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

First, the air conditioning structure involved in this application is described in detail. The air conditioning structure of the application may include: The indoor unit, the outdoor unit of the air conditioner, and the electric control box. The electric control box is deployed on the outdoor unit of the air conditioner, and is used to control the operation of the air conditioner so that the air conditioner can adjust the ambient temperature of the environment where the indoor unit of the air conditioner is located.

Fig. 1 is a schematic diagram of the structure of an air conditioner indoor unit provided by the present application. As shown in Fig. 1, the structure of the air conditioner indoor unit of the present application may include: an ambient temperature sensor, a heat exchanger, and an indoor unit fan, and the ambient temperature sensor of the air conditioner indoor unit is located above the heat exchanger of the air conditioner indoor unit.

Ambient temperature sensor: used to detect the ambient temperature of the environment in which it is located, so that the electronic control box on the air conditioner outdoor unit can obtain the ambient temperature of the environment where the air conditioner indoor unit is located.

Heat exchanger: When the air conditioner is working, it uses the phase change of the refrigerant in the air conditioner to exchange heat, thereby adjusting the indoor ambient temperature of the environment where the air conditioner is located. Among them, there will be temperature radiation on the heat exchanger, which will affect the temperature around the heat exchanger. In Figure 1, the heat exchanger is in the marked position.

Indoor fan: used to provide air outlet for the air conditioner through the rotation of the fan when the air conditioner is working. The indoor fan is located behind the heat exchanger and is not shown in Figure 1.

Since the ambient temperature sensor of the indoor unit of the air conditioner is located above the heat exchanger of the indoor unit of the air conditioner, and after the heat exchanger stops working, there will still be temperature radiation corresponding to the temperature control mode of the air conditioner on the heat exchanger. For example, when the air conditioner is in heating mode, there is heat radiation on the heat exchanger, which will cause the ambient temperature near the heat exchanger to rise, causing the ambient temperature detected by the ambient temperature sensor to rise; when the air conditioner is in cooling mode, there is cold radiation on the heat exchanger, which will cause the ambient temperature near the heat exchanger to drop, causing the ambient temperature detected by the ambient temperature sensor to drop.

At present, in order to reduce energy consumption, air conditioners are usually equipped with a temperature control function. The temperature control function means that when the ambient temperature sensor of the air conditioner detects that the ambient temperature has reached the target temperature, the air conditioner stops running. Then wait for the ambient temperature to change naturally to not meet the target temperature, the air conditioner restarts, and adjusts the ambient temperature again to meet the target temperature. Taking the heating mode as an example, the target temperature is greater than the user-set temperature, and the user-set temperature is the temperature set by the user on the air conditioner. For example, the user sets the temperature to 25 degrees and the target temperature is 26 degrees. After the air conditioner is running, when the ambient temperature sensor detects that the ambient temperature has reached the target temperature of 26 degrees, the air conditioner stops running. Then wait for the ambient temperature to change naturally to not meet the user-set temperature of 25 degrees, the air conditioner restarts, and adjusts the ambient temperature to the target temperature of 26 degrees again.

However, under the air conditioning structure of the present application, since the ambient temperature sensor of the air conditioner indoor unit is located above the heat exchanger of the air conditioner indoor unit, the ambient temperature collected by the ambient temperature sensor will be affected by the temperature radiation of the heat exchanger, resulting in the ambient temperature being inconsistent with the actual ambient temperature in the room. For example, during heating, the ambient temperature collected by the ambient temperature sensor is higher than the actual ambient temperature, resulting in the air conditioner indoor unit reaching the temperature and shutting down, the actual ambient temperature has reached the restart temperature, but the ambient temperature collected by the ambient temperature sensor has not yet reached the restart temperature, resulting in the problem of poor accuracy of air conditioning restart.

At present, in order to prevent the radiation temperature on the heat exchanger from affecting the accuracy of the ambient temperature collected by the ambient temperature sensor, the indoor fan of the air conditioner is usually kept in operation after the air conditioner reaches the temperature and stops. The air volume generated by the operation of the indoor fan is used to take away the radiation temperature on the heat exchanger, thereby reducing the influence of the radiation temperature on the heat exchanger on the temperature collected by the ambient temperature sensor, so that the indoor unit of the air conditioner can correctly obtain the actual ambient temperature, thereby avoiding the problem of delayed changes in the ambient temperature obtained by the indoor unit of the air conditioner due to the radiation temperature on the heat exchanger, thereby achieving the effect of improving the accuracy of restarting the air conditioner.

However, the temperature control function of the air conditioner is to reduce the energy consumption of the air conditioner. However, by keeping the indoor fan of the air conditioner running after the air conditioner stops at the temperature, the indoor fan will continue to run after the air conditioner stops at the temperature, resulting in There is a problem of increased energy consumption.

In view of this, the present application proposes a method for controlling an indoor unit of an air conditioner. After the indoor unit of the air conditioner reaches the temperature and stops, the restart temperature of the indoor unit of the air conditioner is continuously and linearly updated according to the temperature control mode of the air conditioner by the shutdown time, thereby eliminating the error of the ambient temperature detected by the ambient temperature sensor caused by the temperature radiation of the heat exchanger, thereby improving the accuracy of restarting the air conditioner. In addition, the method does not need to keep the indoor unit fan running after the indoor unit of the air conditioner stops at the temperature, thereby reducing energy consumption.

The execution subject of the embodiment of the present application is an electric control box of an air conditioner, which can obtain the operating status information of the air conditioner, modify the operating parameters of the air conditioner, and control the operating status of the air conditioner.

The air conditioner indoor unit control method provided by the present application is described in detail below. FIG2 is a flow chart of an air conditioner indoor unit control method provided by an embodiment of the present application. As shown in FIG2, the method may include:

S201, obtaining the downtime length of the air conditioner indoor unit after it stops due to reaching the temperature.

The downtime duration can be the duration of time the air conditioner is in the downtime state, starting from each time the air conditioner indoor unit reaches the temperature and stops; it can also be started from the starting point of the downtime duration after the air conditioner indoor unit stops when it reaches the temperature, and the starting point can be determined according to actual needs, and this application does not limit this; it can also be stopped at any time or the downtime duration is reset to zero, and the recording starts again. The downtime duration can be obtained from the air conditioner's electronic control box, for example, it can be obtained through a timer, and the timer can be in the air conditioner's electronic control box, in the form of hardware or software, and can start timing when the air conditioner indoor unit stops when it reaches the temperature.

It should be understood that the present application only takes the form of a timer as an example and does not specifically limit the implementation method of the function, as long as the above-mentioned function can be achieved.

S202: If the shutdown time reaches a first preset time, updating the restart temperature of the indoor unit of the air conditioner according to the temperature control mode of the air conditioner.

The temperature control mode is a cooling mode or a heating mode. In different temperature control modes, the method of updating the restart temperature of the air conditioner indoor unit may also be different. For example, when the temperature control mode is a cooling mode, the restart temperature is gradually lowered; when the temperature control mode is a heating mode, the restart temperature is gradually increased. The restart temperature may refer to the user-set temperature when the air conditioner is restarted; it may also refer to adjusting the user-set temperature based on the user-set temperature of the air conditioner, and using the adjusted user-set temperature as the restart temperature, for example, it may be a compensation value added to the user-set temperature.

It should be understood that how to update the restart temperature of the air conditioner indoor unit can be determined according to the direction and magnitude of the influence of the radiation temperature of the heat exchanger on the ambient temperature sensor. The direction of updating the restart temperature of the air conditioner indoor unit is the same as the direction of the influence of the radiation temperature of the heat exchanger on the ambient temperature sensor; the greater the radiation temperature of the heat exchanger on the ambient temperature sensor, the greater the magnitude of updating the restart temperature of the air conditioner indoor unit. How to update the restart temperature of the air conditioner indoor unit can be determined according to actual needs, and this application does not limit this.

The first preset duration can be determined according to actual needs, for example, it can be 1 minute, 2 minutes, etc., and this application does not impose any limitation on this.

In a possible implementation, when the downtime reaches a first preset time, the restart temperature of the air conditioner indoor unit is updated once. If the updated restart temperature is less than or equal to the ambient temperature detected by the ambient temperature sensor, the downtime is reset to zero, and the downtime after the air conditioner indoor unit reaches the temperature and stops is recorded again. When the downtime reaches the first preset time again, the restart temperature of the air conditioner indoor unit is updated again.

Another possible implementation is that when the downtime reaches the first preset time, the restart temperature of the air conditioner is updated once, and then the downtime continues to be counted. When the difference between the shutdown time lengths when the indoor unit of the air conditioner is set to the restart temperature reaches the first preset time length, the restart temperature of the indoor unit of the air conditioner is updated again.

S203, based on the updated restart temperature and the ambient temperature detected by the ambient temperature sensor, determine whether to restart the air conditioner indoor unit. If it is determined to restart the air conditioner indoor unit, it means that the error of the ambient temperature sensor has been offset, and step S204 is executed; if it is determined not to restart the air conditioner indoor unit, it means that the error of the ambient temperature sensor has not been offset, and the restart temperature of the air conditioner indoor unit is continuously updated.

After the air conditioner indoor unit updates the restart temperature each time, the air conditioner indoor unit compares the updated restart temperature with the ambient temperature detected by the ambient temperature sensor.

When the temperature control mode of the air-conditioning indoor unit is the cooling mode, if the updated restart temperature is greater than or equal to the ambient temperature detected by the ambient temperature sensor, it indicates that the ambient temperature detected by the ambient temperature sensor has not reached the temperature requiring restarting the air-conditioning indoor unit, and the air-conditioning indoor unit will not be restarted; if the updated restart temperature is lower than the ambient temperature detected by the ambient temperature sensor, it indicates that the air-conditioning indoor unit needs to be started for cooling.

When the temperature control mode of the air-conditioning indoor unit is the heating mode, if the updated restart temperature is less than or equal to the ambient temperature detected by the ambient temperature sensor, it indicates that the ambient temperature detected by the ambient temperature sensor has not reached the temperature requiring restarting the air-conditioning indoor unit, and the air-conditioning indoor unit will not be restarted; if the updated restart temperature is greater than the ambient temperature detected by the ambient temperature sensor, it indicates that the air-conditioning indoor unit needs to be started for heating.

S204: If it is determined to start the air conditioner indoor unit again, start the air conditioner indoor unit so that the heat exchanger performs a heat exchange operation for the environment where the air conditioner indoor unit is located.

The air conditioner indoor unit control method provided in the embodiment of the present application continuously and linearly updates the restart temperature of the air conditioner indoor unit according to the shutdown time and the temperature control mode of the air conditioner after the air conditioner indoor unit stops at the temperature reached, thereby eliminating the error of the ambient temperature detected by the ambient temperature sensor caused by the temperature radiation of the heat exchanger, thereby improving the accuracy of the air conditioner restart. In addition, the method does not need to keep the indoor unit fan running after the air conditioner indoor unit stops at the temperature reached, thereby reducing energy consumption.

Next, how to update the restart temperature of the air conditioner indoor unit according to the temperature control mode of the air conditioner in step S202 is described in detail. FIG3 is a flow chart of updating the restart temperature of the air conditioner indoor unit provided by the present application. As shown in FIG3, step S202 may include:

S301. Determine a method for updating the restart temperature of an indoor unit of the air conditioner according to a temperature control mode of the air conditioner.

The updating method may include updating the direction of the restart temperature of the air conditioner indoor unit, updating the target adjustment step of the restart temperature of the air conditioner indoor unit, and recording the starting point of the shutdown time after the air conditioner indoor unit reaches the temperature and shuts down.

The direction of updating the restart temperature of the air conditioner indoor unit may be to increase the restart temperature or to decrease the restart temperature; the target adjustment step may be the step of increasing or decreasing the restart temperature each time the restart temperature is updated. The direction of updating the restart temperature of the air conditioner indoor unit may be determined according to the temperature control mode of the air conditioner indoor unit. For example, Table 1 is an update method provided in an embodiment of the present application, and the update method is determined according to the temperature control mode of the air conditioner indoor unit:

Table 1

When the temperature control mode is cooling mode: since the radiation temperature of the heat exchanger is lower than the actual ambient temperature, the ambient temperature detected by the ambient temperature sensor is lower than the actual ambient temperature due to the influence of the radiation temperature. The method for restarting the indoor unit of a new air conditioner is to gradually lower the restart temperature.

When the temperature control mode is heating mode: since the radiation temperature of the heat exchanger is higher than the actual ambient temperature at this time, the ambient temperature detected by the ambient temperature sensor is higher than the actual ambient temperature due to the influence of the radiation temperature. The method for updating the restart temperature of the air conditioner indoor unit is to gradually increase the restart temperature.

The target adjustment step can be adjusted according to actual needs. Taking the temperature control mode as the heating mode as an example, several methods for determining the target adjustment step are provided below:

Method A: Determine based on the temperature change detected by the ambient temperature sensor after the air conditioner indoor unit reaches the desired temperature and stops.

In the heating mode, after the air conditioner indoor unit reaches the temperature and stops, if the ambient temperature change detected by the ambient temperature sensor within a period of time is greater than or equal to 0, it means that the ambient temperature sensor is affected by the radiation temperature of the heat exchanger, causing the detected temperature to continue to rise. This indicates that the heat exchanger has a greater impact on the ambient temperature sensor, and a larger target adjustment step size for updating the restart temperature is required to shorten the restart time of the air conditioner indoor unit.

For example, the target adjustment step size is determined in mode A as shown in Table 2 below:

Table 2

Method B: Determined according to the user-set temperature of the air conditioner indoor unit.

When the user sets a higher temperature, the step size is larger, and when the ambient temperature is moderate, the step size is smaller. For example, when the temperature control mode is heating mode, after the air conditioner indoor unit reaches the temperature and stops, the user-set temperature is higher than the preset threshold, for example, higher than 26 degrees, which indicates that the user needs the air conditioner to adjust the temperature in the environment to a higher temperature, resulting in stronger heat radiation from the heat exchanger, so that the ambient temperature detected by the ambient temperature sensor is affected by the heat radiation, and the error with the actual ambient temperature is large, so a larger target adjustment step size can be used to eliminate the error. If the restart temperature does not exceed the preset threshold, for example, the restart temperature is 23 degrees, it indicates that the above error is small, so a smaller step size can be selected to eliminate the error.

For example, when the preset threshold is 26 degrees, the target adjustment step length is determined in mode B as shown in Table 3 below:

table 3

Method C: the step length may also be a fixed step length preset in the indoor unit of the air conditioner.

The starting point of the downtime length of the air conditioner indoor unit after reaching the temperature to shut down may be the time point when the air conditioner indoor unit reaches the temperature to shut down, or may be a time point after the air conditioner indoor unit reaches the temperature to shut down determined according to the updating method.

Below, taking the starting point of the downtime of the air conditioner indoor unit after reaching the temperature to shut down as a time point after the air conditioner indoor unit reaches the temperature to shut down determined by the update method, and the target adjustment step is determined according to the change of the ambient temperature detected by the ambient temperature sensor after the air conditioner indoor unit reaches the temperature to shut down as an example, how to determine the starting point of the downtime after the air conditioner indoor unit reaches the temperature to shut down and the target adjustment step are explained.

Implementation method 1: After the air conditioner indoor unit reaches the temperature and stops, determine the starting point for recording the stop time after the air conditioner indoor unit reaches the temperature and stops according to the ambient temperature change detected by the ambient temperature sensor, as well as the target adjustment step.

First, determine the target adjustment step length. During the time between the time when the indoor unit of the air conditioner reaches the temperature and stops and the starting point of the stop time, detect the temperature detected by the ambient temperature sensor at least twice to obtain the temperature change detected by the ambient temperature sensor, and determine the target adjustment step length according to the temperature change detected by the ambient temperature sensor. For example, in the heating mode, when the change is less than or equal to 0, it indicates that the temperature detected by the ambient temperature sensor is less affected by the temperature radiation of the heat exchanger, so a smaller target adjustment step length can be selected to reduce the temperature radiation effect of the heat exchanger; when the temperature change is greater than 0, it indicates that the temperature rise detected by the ambient temperature sensor is only caused by the temperature radiation of the heat exchanger, so a larger target adjustment step length is required to further reduce the temperature radiation effect of the heat exchanger, thereby shortening the restart time of the indoor unit of the air conditioner.

Then, after the change of the ambient temperature is determined, the time point when the last detection ends is used as the starting point of the shutdown duration.

In a possible implementation, regardless of the result of the temperature change detected by the ambient temperature sensor each time, a preset number of temperature changes must be detected, and the time when the last detection ends is used as the starting point of the shutdown duration.

Another possible implementation method is to determine the actual number of detections within the preset number of detections based on whether the change in ambient temperature meets the judgment conditions, and use the time when the last detection of the actual number of detections ends as the starting point of the shutdown duration.

In this implementation, three detections are taken as an example for illustration.

A first ambient temperature detected by the ambient temperature sensor at a first sampling time and a second ambient temperature detected at a second sampling time are obtained.

The first sampling time may be the time when the air conditioner indoor unit reaches the temperature and stops, or a time determined according to demand after the air conditioner indoor unit reaches the temperature and stops. The time between the first sampling time and the second sampling time may be preset in the air conditioner indoor unit according to actual demand.

If the difference between the first ambient temperature and the second ambient temperature meets the first judgment condition corresponding to the temperature control mode, the downtime duration of the air conditioner indoor unit after reaching the temperature and shutting down is recorded, and the first adjustment step is used as the target adjustment step.

The first judgment condition may be determined according to the temperature control mode and actual needs, and is not limited thereto.

When the temperature control mode is the heating mode, the first judgment condition is that the temperature difference is less than the first value, and when the temperature control mode is the cooling mode, the first judgment condition is that the temperature difference is greater than the first value. For example, in the heating mode, the first judgment condition may be, for example, to determine whether the temperature difference is less than 0; in the cooling mode, the first judgment condition may be, for example, to determine whether the temperature difference is greater than 0. That is, the first judgment condition is used to determine whether the temperature change detected by the ambient temperature sensor is in the same direction as the actual ambient temperature change, and the amplitude of the temperature change detected by the ambient temperature sensor. When the temperature change detected by the ambient temperature sensor is in the same direction as the actual ambient temperature change, it means that the heat exchanger has little effect on the ambient temperature sensor, and a smaller step size can be used as the target adjustment step size; when the temperature change detected by the ambient temperature sensor is in the opposite direction to the actual ambient temperature change, it means that the heat exchanger has a greater effect on the ambient temperature sensor, and a larger step size can be used as the target adjustment step size. The specific step size can be determined according to the magnitude of the temperature change amplitude, and the present application does not limit this.

If the difference between the first ambient temperature and the second ambient temperature meets the second judgment condition corresponding to the temperature control mode, the third ambient temperature detected by the ambient temperature sensor at the third sampling time is acquired.

The second judgment condition can also be determined according to the temperature control mode and actual needs, and no limit.

When the temperature control mode is the heating mode, the second judgment condition is that the temperature difference is greater than or equal to the first value, and when the temperature control mode is the cooling mode, the second judgment condition is that the temperature difference is less than or equal to the first value. For example, the second judgment condition may be to determine whether the temperature difference is greater than or equal to 0 in the heating mode, and to determine whether the temperature difference is less than or equal to 0 in the cooling mode.

If the difference between the second ambient temperature and the third ambient temperature meets the second judgment condition, the downtime of the air conditioner indoor unit after reaching the temperature and shutting down is recorded, and the second adjustment step is used as the target adjustment step. The second adjustment step is greater than the first adjustment step.

If the difference between the second ambient temperature and the third ambient temperature does not satisfy the second judgment condition, the downtime duration of the air conditioner indoor unit after reaching the temperature and shutting down is recorded, and the first adjustment step is used as the target adjustment step.

Implementation method 2: After the air conditioner indoor unit reaches the temperature and stops, the target adjustment step length is determined according to the ambient temperature change detected by the ambient temperature sensor. The starting point of the shutdown time is the preset starting point.

The starting point of the shutdown time is a preset time point after the indoor unit of the air conditioner reaches the temperature and shuts down, for example, it may be a time point when 1 minute has passed since the indoor unit of the air conditioner reached the temperature and shuts down.

In this implementation, the action of detecting the change in the ambient temperature detected by the ambient temperature sensor is performed after the air conditioner indoor unit reaches the temperature shutdown and before reaching the starting point of the shutdown market. It can be detecting the ambient temperature detected by the ambient temperature sensor twice to obtain one temperature change, or it can be detecting the ambient temperature detected by the ambient temperature sensor N times to obtain N-1 temperature changes, where N is an integer greater than 2. The method for determining the target adjustment step size based on the change in the ambient temperature detected by the ambient temperature sensor is the same as that of implementation method 1, and will not be repeated here.

When the shutdown time reaches the starting point of the shutdown time, the restart temperature of the air conditioner indoor unit is updated for the first time.

S302: According to the updating method, the restart temperature of the indoor unit of the air conditioner is updated according to the target adjustment step.

The target adjustment step is the corresponding step determined in the update method. The air conditioner indoor unit can update the restart temperature according to the update direction included in the update method and the target adjustment step. Alternatively, the target adjustment step carries information about the update direction, such as lowering the restart temperature as a negative step and increasing the temperature as a positive step. Alternatively, the update method does not include the update direction, and directly stores the method of how to update the restart temperature according to the target adjustment step in the form of a formula. For example, in the heating mode, the formula is: the restart temperature after the update = the restart temperature before the update + the target adjustment step; in the cooling mode, the formula is: the restart temperature after the update = the restart temperature before the update - the target adjustment step.

The following takes the update direction included in the update method as an example to illustrate:

In one possible implementation, according to the update method, the restart temperature of the air conditioner indoor unit is directly updated according to the target adjustment step, and the target adjustment step is the adjustment step corresponding to the update method. For example, if the adjustment step corresponding to the update method is +1 degree, then the target adjustment step is +1 degree.

Another possible implementation method is to update the restart temperature of the air conditioner indoor unit according to the target adjustment step size to obtain a candidate restart temperature. According to the update method, the candidate restart temperature is compensated using the temperature compensation value to obtain an updated restart temperature.

In this embodiment, the updating method also includes a temperature compensation value. The temperature compensation value is consistent with the direction of updating the restart temperature in the updating method. For example, in the heating mode, the temperature compensation value is +2 degrees. The temperature compensation value is used to speed up the efficiency of the air conditioner in adjusting the ambient temperature after the air conditioner is restarted. The temperature compensation value is also used to prevent the air conditioner from reaching the temperature shutdown condition again in a short time and shutting down. Through the temperature compensation value, it is possible to improve the efficiency of the air conditioner in adjusting the ambient temperature. Improve the stability of the operation of the air conditioner indoor unit and prevent the air conditioner indoor unit from continuously performing the cycle of stopping and restarting when the temperature reaches the limit in a short period of time.

Among them, the candidate restart temperature is the adjusted restart temperature corresponding to when the adjusted restart temperature is just greater than (in the case of heating mode) or less than (in the case of cooling mode) the ambient temperature detected by the ambient temperature sensor. At this time, the candidate restart temperature is compensated according to the corresponding temperature compensation value in the update method to obtain the updated restart temperature. For example, the candidate restart temperature is 23 degrees, and the temperature compensation value is +2 degrees, then the updated restart temperature is 25 degrees. When the air conditioner indoor unit reaches the candidate restart temperature (that is, the ambient temperature sensor temperature is lower than 23 degrees, and the restart temperature has been updated to 23 degrees), it will start again, but the operating temperature after startup is the updated restart temperature (25 degrees).

The correspondence between the update mode and the temperature compensation value may be similar to the correspondence between the update mode and the update direction and the step length in step S301, and will not be repeated here.

The method for updating the restart temperature of the indoor unit of the air conditioner provided in the embodiment of the present application determines the target adjustment step and the direction of updating the restart temperature by judging the temperature difference detected by the ambient temperature sensor. After completing the judgment, the starting point of the shutdown time is determined, and the restart temperature of the indoor unit of the air conditioner is updated from the starting point. This method can more accurately adjust the way to update the restart temperature according to the influence of the current heat exchanger on the ambient temperature sensor. This method can also speed up the efficiency of adjusting the ambient temperature after the air conditioner is restarted by setting a temperature compensation value, improve the stability of the operation of the indoor unit of the air conditioner, and prevent the indoor unit of the air conditioner from continuously performing a cycle of stopping and restarting after reaching the temperature in a short period of time.

After the air conditioner indoor unit is started again, the air conditioner indoor unit control method provided in the present application may further include:

After the air conditioner indoor unit operates at the updated restart temperature for a second preset time period, the air conditioner indoor unit is controlled to operate at the initial restart temperature.

The initial restart temperature is determined by the indoor unit of the air conditioner in the temperature control mode. That is, the initial restart temperature is the restart temperature before it is updated. The restart temperature can be determined according to the temperature set by the user.

The second preset time length can be set according to actual needs, and the user can modify the second preset time length through the air conditioner. The second preset time length can also be preset in the air conditioner, and the user cannot modify it. This application does not limit the setting method of the second preset time length.

Through this method, after the air-conditioning indoor unit executes the aforementioned control method, the target adjustment temperature of the air-conditioning indoor unit can still be maintained at the initial restart temperature determined according to the user setting, thereby preventing the target adjustment temperature of the air-conditioning indoor unit from deviating from the initial restart temperature determined according to the user setting due to the aforementioned method.

For ease of understanding, the following takes the heating mode and the cooling mode as examples to provide a method for executing the above-mentioned air conditioner indoor unit control.

FIG4 is a flow chart of a method for controlling an air conditioner indoor unit in a heating mode provided by an embodiment of the present application. Wherein, T0 is the restart temperature, T1 is the ambient temperature collected by the ambient temperature sensor, △T is the change in ambient temperature detected by the ambient temperature sensor, t is the duration of each time the ambient temperature sensor detects a change in ambient temperature, t1 is the downtime of the air conditioner indoor unit after reaching the temperature shutdown in the first update mode, t2 is the downtime of the air conditioner indoor unit after reaching the temperature shutdown in the second update mode, and the initial value of n is 0. As shown in FIG4 , the method may include:

S401, after the air conditioner indoor unit reaches the temperature and stops, first start to detect the ambient temperature change △T detected by the current ambient temperature sensor. If △T is greater than or equal to 0, it means that in the heating mode, after the air conditioner indoor unit reaches the temperature and stops, the ambient sensor is affected by the heat radiation of the heat exchanger, and the detected ambient temperature is still rising, and the first more A new method, i.e., a larger target adjustment step and a smaller first preset time are used to offset the larger ambient temperature detection error caused by the heat radiation of the heat exchanger, and step S402 is executed; if ΔT is detected to be less than 0, it indicates that in the heating mode, after the air conditioner indoor unit reaches the temperature and stops, the environmental sensor is less affected by the heat radiation of the heat exchanger, and the detected ambient temperature is in a decreasing state, and the second updating method, i.e., a smaller target adjustment step and a larger first preset time are used to offset the smaller ambient temperature detection error caused by the heat radiation of the heat exchanger, and step S403 is executed;

Among them, in this embodiment, if the △T obtained by detecting the change of the ambient temperature detected by the ambient temperature sensor three times is greater than or equal to 0, the first updating method is adopted; if the △T obtained by detecting the change of the ambient temperature detected by the ambient temperature sensor any time is less than 0, the second updating method is adopted starting from the time point of the detection corresponding to the time when △T is less than 0. That is, the number of changes in the ambient temperature detected by the currently detected ambient temperature sensor is determined by n with an initial value of 0.

S402, adjusting the restart temperature according to the target adjustment step corresponding to the first updating method and the first preset time. If the adjusted restart temperature is greater than or equal to the ambient temperature collected by the ambient temperature sensor, it indicates that the air conditioner needs to be restarted to increase the ambient temperature of the environment, and step S404 is executed; if the adjusted restart temperature is less than the ambient temperature collected by the ambient temperature sensor, it indicates that the ambient temperature detection error caused by the heat radiation of the heat exchanger has not been completely offset, then the timing t1 will be started, and the restart temperature will be updated again after the first preset time.

Among them, the target adjustment step corresponding to the first update method is 0.5 degrees, and the first preset time corresponding to the first update method is 3 minutes. That is, after each update of the restart temperature, if the adjusted restart temperature is still lower than the ambient temperature collected by the ambient temperature sensor, the shutdown time t1 will be reset and the timing will be restarted. When t1 reaches the first preset time (3 minutes) again, it will be increased by 0.5 degrees again.

S403, adjusting the restart temperature according to the target adjustment step corresponding to the second updating method and the first preset time. If the adjusted restart temperature is greater than or equal to the ambient temperature collected by the ambient temperature sensor, it indicates that the air conditioner needs to be restarted to increase the ambient temperature of the environment, and step S404 is executed; if the adjusted restart temperature is less than the ambient temperature collected by the ambient temperature sensor, it indicates that the ambient temperature detection error caused by the heat radiation of the heat exchanger has not been completely offset, then the timing t2 will be started, and the restart temperature will be updated again after the first preset time.

Among them, the target adjustment step size corresponding to the second update method is 0.2 degrees, and the first preset time length corresponding to the second update method is 5 minutes. That is, after each update of the restart temperature, if the adjusted restart temperature is still lower than the ambient temperature collected by the ambient temperature sensor, the shutdown time length t2 will be reset to zero and the timing will be restarted. When t2 reaches the first preset time length (5 minutes) again, it will be increased by 0.2 degrees again.

S404, restart the indoor unit of the air conditioner, and operate it with T0+1 as the compensated restart temperature. After running for 3 minutes, operate it with the initial restart temperature.

The temperature compensation value is 1 degree, and the second preset time is 3 minutes. By running at the compensated restart temperature T0+1 for 3 minutes, the efficiency of adjusting the ambient temperature after the air conditioner is restarted can be accelerated, the stability of the operation of the air conditioner indoor unit can be improved, and the air conditioner indoor unit can be prevented from continuously performing the cycle of temperature-reaching shutdown-restart in a short period of time.

FIG. 5 is a flow chart of a method for controlling an indoor unit of an air conditioner in a cooling mode provided in an embodiment of the present application.

Under this embodiment, the cold radiation of the heat exchanger will cause the ambient temperature detected by the ambient temperature sensor to be lower than the actual ambient temperature, resulting in an error. To eliminate the error, the judgment logic of △T is modified to whether it is less than or equal to 0, and the target adjustment step and temperature compensation value are modified to negative values. The other processes are the same as Figure 4. Please refer to the detailed contents of Figure 4 and will not be repeated here.

Fig. 6 is a schematic diagram of the structure of an air conditioner indoor unit control device provided in an embodiment of the present application. As shown in Fig. 6 , the air conditioner indoor unit control device comprises: an acquisition module 11 and a processing module 12 .

Acquisition module 11 is used to obtain the downtime duration of the air conditioner after the indoor unit reaches the temperature and stops.

The processing module 12 is used to update the restart temperature of the air conditioner indoor unit if the shutdown time reaches a first preset time, according to the temperature control mode of the air conditioner; the temperature control mode is a cooling mode or a heating mode; according to the updated restart temperature and the ambient temperature detected by the ambient temperature sensor, determine whether to restart the air conditioner indoor unit; if it is determined to restart the air conditioner indoor unit, start the air conditioner indoor unit so that the heat exchanger performs a heat exchange operation for the environment where the air conditioner indoor unit is located.

In a possible implementation, the processing module 12 is specifically configured to determine an update method for the restart temperature of the air conditioner indoor unit according to the temperature control mode of the air conditioner, and update the restart temperature of the air conditioner indoor unit according to the target adjustment step size according to the update method.

In this implementation, the processing module 12 is specifically used to update the restart temperature of the air conditioner indoor unit according to the target adjustment step according to the update mode to obtain the candidate restart temperature. According to the update mode, the candidate restart temperature is compensated by the temperature compensation value to obtain the updated restart temperature.

Optionally, the processing module 12 is also used to determine the starting point for recording the downtime duration of the air conditioner indoor unit after it reaches the temperature and stops, and the target adjustment step length according to the ambient temperature change detected by the ambient temperature sensor.

In this implementation, the acquisition module 11 is specifically used to acquire the first ambient temperature detected by the ambient temperature sensor at the first sampling time and the second ambient temperature detected at the second sampling time. The processing module 12 is specifically used to record the downtime of the air conditioner indoor unit after reaching the temperature shutdown if the difference between the first ambient temperature and the second ambient temperature meets the first judgment condition corresponding to the temperature control mode, and use the first adjustment step as the target adjustment step. If the difference between the first ambient temperature and the second ambient temperature meets the second judgment condition corresponding to the temperature control mode, the third ambient temperature detected by the ambient temperature sensor at the third sampling time is acquired. If the difference between the second ambient temperature and the third ambient temperature meets the second judgment condition, the downtime of the air conditioner indoor unit after reaching the temperature shutdown is recorded, and the second adjustment step is used as the target adjustment step; the second adjustment step is greater than the first adjustment step. Among them, when the temperature control mode is the heating mode, the first judgment condition is that the temperature difference is less than the first value, and the second judgment condition is that the temperature difference is greater than or equal to the first value; when the temperature control mode is the cooling mode, the first judgment condition is that the temperature difference is greater than the second value, and the second judgment condition is that the temperature difference is less than or equal to the second value.

In any of the above implementations, the processing module 12 is also used to reset the shutdown time to zero if the updated restart temperature is less than or equal to the ambient temperature, and re-record the shutdown time after the air conditioner indoor unit reaches the temperature and shuts down.

In any of the above-mentioned implementation methods, the processing module 12 is also used to, after the processing module 12 restarts the air-conditioning indoor unit, after the air-conditioning indoor unit runs at the updated restart temperature for a second preset time, control the air-conditioning indoor unit to operate at the initial restart temperature, and the initial restart temperature is the restart temperature currently set for the air-conditioning indoor unit in the temperature control mode.

The air conditioner indoor unit control device provided in the embodiment of the present application can execute the air conditioner indoor unit control method in the above method embodiment, and its implementation principle and technical effect are similar, which will not be repeated here.

FIG7 is a schematic diagram of the structure of an electric control box provided in an embodiment of the present application. The electric control box is used to execute the aforementioned air conditioner indoor unit control method. The electric control box may be, for example, the aforementioned electric control box. As shown in FIG7 , the electric control box 700 may include: at least one processor 701 and a memory 702.

The memory 702 is used to store programs. Specifically, the programs may include program codes, and the program codes include computer operation instructions.

The memory 702 may include a high-speed RAM memory, and may also include a non-volatile memory. (non-volatile memory), such as at least one disk storage.

The processor 701 is used to execute the computer-executable instructions stored in the memory 702 to implement the method described in the aforementioned method embodiment. The processor 701 may be a CPU, or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

In a specific implementation, if the memory 702 and the processor 701 are implemented independently, the memory 702 and the processor 701 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in a specific implementation, if the memory 702 and the processor 701 are integrated on a chip, the memory 702 and the processor 701 can communicate through an internal interface.

The present application also provides a computer-readable storage medium, which may include: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used for the methods in the above embodiments.

The present application also provides a program product, which includes an execution instruction, which is stored in a readable storage medium. At least one processor of the electronic device can read the execution instruction from the readable storage medium, and at least one processor executes the execution instruction so that the electronic device implements the air conditioner indoor unit control method provided by the above various embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A method for controlling an indoor unit of an air conditioner, characterized in that an ambient temperature sensor of the indoor unit of the air conditioner is located above a heat exchanger of the indoor unit of the air conditioner, and the method comprises:

   Obtaining the downtime of the indoor unit of the air conditioner after reaching the temperature and shutting down;

   If the shutdown time reaches a first preset time, the restart temperature of the indoor unit of the air conditioner is updated according to the temperature control mode of the air conditioner; the temperature control mode is a cooling mode or a heating mode;

   Determining whether to restart the air conditioner indoor unit according to the updated restart temperature and the ambient temperature detected by the ambient temperature sensor;

   If it is determined to restart the air conditioner indoor unit, the air conditioner indoor unit is started, so that the heat exchanger performs a heat exchange operation for the environment where the air conditioner indoor unit is located.
2. The method according to claim 1, characterized in that updating the restart temperature of the indoor unit of the air conditioner according to the temperature control mode of the air conditioner comprises:

   Determining, according to the temperature control mode of the air conditioner, a method for updating the restart temperature of the indoor unit of the air conditioner;

   According to the updating method, the restart temperature of the indoor unit of the air conditioner is updated according to the target adjustment step.
3. The method according to claim 2, characterized in that the updating of the restart temperature of the air conditioner indoor unit according to the update mode and the target adjustment step size comprises:

   According to the updating method, updating the restart temperature of the air conditioner indoor unit according to the target adjustment step length to obtain a candidate restart temperature;

   According to the updating method, the candidate restart temperature is compensated by using the temperature compensation value to obtain the updated restart temperature.
4. The method according to claim 2, characterized in that the method further comprises:

   After the indoor unit of the air conditioner reaches the temperature and shuts down, the starting point for recording the shutdown time after the indoor unit of the air conditioner reaches the temperature and shuts down, and the target adjustment step are determined according to the ambient temperature change detected by the ambient temperature sensor.
5. The method according to claim 4 is characterized in that the step of determining the starting point for recording the downtime duration of the air conditioner indoor unit after the indoor unit reaches the temperature and stops according to the change in the ambient temperature detected by the ambient temperature sensor, and the step of adjusting the target comprises:

   Acquire a first ambient temperature detected by the ambient temperature sensor at a first sampling time and a second ambient temperature detected at a second sampling time;

   If the difference between the first ambient temperature and the second ambient temperature meets the first judgment condition corresponding to the temperature control mode, the downtime of the air conditioner indoor unit after reaching the temperature and shutting down is recorded, and the first adjustment step length is used as the target adjustment step length;

   If the difference between the first ambient temperature and the second ambient temperature satisfies the second judgment condition corresponding to the temperature control mode, obtaining a third ambient temperature detected by the ambient temperature sensor at a third sampling time;

   If the difference between the second ambient temperature and the third ambient temperature meets the second judgment condition, the downtime of the air conditioner indoor unit after reaching the temperature and shutting down is recorded, and the second adjustment step length is used as the target adjustment step length; the second adjustment step length is greater than the first adjustment step length;

   Among them, when the temperature control mode is the heating mode, the first judgment condition is that the temperature difference is less than the first value, and the second judgment condition is that the temperature difference is greater than or equal to the first value; when the temperature control mode is the cooling mode, the first judgment condition is that the temperature difference is greater than the second value, and the second judgment condition is that the temperature difference is less than or equal to the second value.
6. The method according to any one of claims 1 to 5, characterized in that after updating the restart temperature of the air conditioner indoor unit according to the downtime duration, the method further comprises:

   If the updated restart temperature is less than or equal to the ambient temperature, the shutdown time is reset to zero, and the shutdown time after the air conditioner indoor unit reaches the temperature and shuts down is re-recorded.
7. The method according to any one of claims 1 to 5, characterized in that after restarting the air conditioner indoor unit, the method comprises:

   After the air conditioner indoor unit operates at the updated restart temperature for a second preset time period, the air conditioner indoor unit is controlled to operate at an initial restart temperature, where the initial restart temperature is the restart temperature currently set for the air conditioner indoor unit in the temperature control mode.
8. An air conditioner indoor unit control device, characterized in that the device comprises:

   An acquisition module, used to acquire the downtime length of the air conditioner indoor unit after reaching the temperature and shutting down;

   A processing module is used to update the restart temperature of the air conditioner indoor unit if the shutdown time reaches a first preset time, according to the temperature control mode of the air conditioner; the temperature control mode is a cooling mode or a heating mode; according to the updated restart temperature and the ambient temperature detected by the ambient temperature sensor, determine whether to restart the air conditioner indoor unit; if it is determined to restart the air conditioner indoor unit, start the air conditioner indoor unit so that the heat exchanger performs a heat exchange operation for the environment where the air conditioner indoor unit is located.
9. An electric control box, characterized in that the electric control box comprises: a processor, and a memory communicatively connected to the processor;

   The memory stores computer-executable instructions;

   The processor executes the computer-executable instructions stored in the memory to implement the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that it includes: computer-executable instructions stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the method according to any one of claims 1 to 7.