CN113623817A

CN113623817A - Control method of air conditioner and air conditioner

Info

Publication number: CN113623817A
Application number: CN202110893561.9A
Authority: CN
Inventors: 谢容; 郑良剑; 伍衍亮
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-11-09
Anticipated expiration: 2041-08-04
Also published as: CN113623817B

Abstract

The invention provides a control method of an air conditioner and the air conditioner, wherein the control method of the air conditioner comprises the steps of carrying out filth blockage detection on a filter screen of the air conditioner; the filth blockage detection method of the filter screen comprises the following steps of after a compressor of the air conditioner continuously operates for a first preset time period and after an indoor fan of the air conditioner stably operates for a second preset time period in a first preset wind shield: detecting the indoor environment temperature and the inner pipe temperature of the air conditioner in real time; and in a third continuous preset time period, comparing the indoor environment temperature with the first limit temperature, comparing the indoor environment temperature with the set temperature of the air conditioner, comparing the inner pipe temperature with the second limit temperature, and judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to each comparison result. The filth blockage detection method does not need to additionally arrange a detection part, and solves the problem that the structure of the air conditioner is complicated due to the fact that the air conditioner in the prior art detects whether the filter screen is filth-blocked or not.

Description

Control method of air conditioner and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof.

Background

As the service time of the air conditioner is increased, dust can be accumulated on the filter screen, so that the filter screen is dirty and blocked; the air outlet quantity and the heat exchange quantity of the air conditioner can be reduced after the filter screen is dirty and blocked, the air outlet quality of the air conditioner can be reduced, and the use performance of the air conditioner is further influenced.

In the prior art, whether the filter screen is dirty or not is mainly detected by additionally arranging a sensor and other detection devices, and the detection mode adds structural parts of the air conditioner so that the structure of the air conditioner is complicated.

In addition, the air conditioner in the prior art does not have the function of prompting a user that the filter screen is dirty and blocked; in addition, the air conditioner in the prior art lacks a compensation scheme for temporary coping before a user cleans the filter screen.

Disclosure of Invention

The invention mainly aims to provide an air conditioner control method and an air conditioner, and aims to solve the problem that the structure of the air conditioner is complicated due to the fact that whether a filter screen is dirty or not is detected by the air conditioner in the prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a control method of an air conditioner, including performing filth blockage detection on a filter screen of the air conditioner; after the compressor of the air conditioner is continuously operated for a first preset time period t1 and after an indoor fan of the air conditioner is stably operated for a second preset time period t2 at a first preset windshield, the method for detecting the filth blockage of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T_{Inner ring}And inner pipe temperature T of air conditioner_{Inner pipe}(ii) a Comparing the indoor ambient temperature T for a third consecutive predetermined period of time T3_{Inner ring}And a first defined temperature T_{Limit 1}Magnitude of (1), comparison of indoor ambient temperature T_{Inner ring}And emptySet temperature T of regulator_{Setting up}Magnitude of (1), comparison of inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to each comparison result.

Further, the indoor environment temperature T is detected in real time_{Inner ring}And inner tube temperature T_{Inner pipe}Then, the filth blockage detection method of the filter screen comprises the following steps: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state; acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state; when the air conditioner is in a cooling state, and in a continuous third preset time period T3, when the indoor environment temperature T_{Inner ring}Greater than a first defined temperature T_{Limit 1}And when the indoor ambient temperature T is_{Inner ring}Greater than the set temperature T of the air conditioner_{Setting up}And when the temperature T of the inner tube is_{Inner pipe}Less than a second defined temperature T_{Limit 2}Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; wherein the first defined temperature T_{Limit 1}Greater than a second defined temperature T_{Limit 2}(ii) a When the air conditioner is in a heating state, and in a continuous third preset time period T3, when the indoor environment temperature T_{Inner ring}Less than a first defined temperature T_{Limit 1}And when the indoor ambient temperature T is_{Inner ring}Less than the set temperature T of the air conditioner_{Setting up}And when the temperature T of the inner tube is_{Inner pipe}Greater than a second defined temperature T_{Limit 2}Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; wherein the first defined temperature T_{Limit 1}Less than a second defined temperature T_{Limit 2}。

Further, after the filter screen is determined to be in the filthy blockage state or the state of being blocked by the foreign matter, the filthy blockage detection method of the filter screen further comprises the following steps: acquiring the accumulated running time of the air conditioner, and comparing the accumulated running time of the air conditioner with the preset running time M; when the accumulated running time of the air conditioner is less than the preset running time M, judging that the filter screen is in a state of being shielded by foreign matters; and when the accumulated running time of the air conditioner is greater than or equal to the preset running time M, judging that the filter screen is in a filth blockage state.

Further, after the filth blockage detection is performed on the filter screen, the control method of the air conditioner further comprises the following steps: when the filter screen is judged to be shielded by the foreign matters, controlling an alarm module of the air conditioner to send out a first alarm signal so as to remind a user to remove the foreign matters shielding the filter screen; and when the filter screen is judged to be in the dirty and blocked state, controlling the air conditioner to enter a self-adaptive compensation mode.

Further, after the air conditioner enters the adaptive compensation mode, the operation step S1 of the air conditioner includes: increasing an operating damper of the indoor fan and operating the indoor fan on the increased damper for a fourth predetermined time period t 4; wherein, the running windshield of the indoor fan is controlled to increase at least one gear; or increasing the rotating speed of the indoor fan and operating the indoor fan at the increased rotating speed for a fifth preset time period t 5; detecting indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Difference between, indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}And the inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}Whether the differences between are all decreasing.

Further, the control method of the air conditioner further comprises the following steps: repeating the above-mentioned operation step S1 of the air conditioner at least once; when the indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Difference between, indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Difference therebetween and inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}The difference between the two is reduced, and when the indoor ambient temperature T is lower_{Inner ring}And a first defined temperature T_{Limit 1}The difference between the first and second predetermined difference is less than or equal to the first predetermined difference, the indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}The difference between the two is less than or equal to a second preset difference, the temperature T of the inner tube_{Inner pipe}And a second defined temperature T_{Limit 2}When the difference value is less than or equal to a third preset difference value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Difference between, indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Difference therebetween and inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}The difference between the two is not reduced, or when the indoor ambient temperature T is reduced_{Inner ring}And a first defined temperature T_{Limit 1}The reduced value of the difference between the first and second preset values is less than the first preset value, and the indoor environment temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}The reduced value of the difference between the two is less than the second preset value, the temperature T of the inner tube_{Inner pipe}And a second defined temperature T_{Limit 2}And if the reduction value of the difference value is smaller than the third preset value, controlling the air conditioner to stop the self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal so as to remind a user to clean the filter screen.

Further, after the air conditioner enters the adaptive compensation mode, the operation step S2 of the air conditioner includes: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state; when the air conditioner is in a cooling state, controlling the set temperature of the air conditioner to be reduced by the first preset temperature, and enabling the air conditioner to operate at the reduced set temperature for a sixth preset time period t 6; detecting indoor ambient temperature T_{Inner ring}Whether to decrease; when the air conditioner is in a heating state, controlling the set temperature of the air conditioner to be increased by a second preset temperature, and enabling the air conditioner to operate at the increased set temperature for a seventh preset time period t 7; detecting indoor ambient temperature T_{Inner ring}Whether it is increased.

Further, the control method of the air conditioner further comprises the following steps: repeating the above-mentioned operation step S2 of the air conditioner at least once; when the air conditioner is in a cooling state, when the indoor ambient temperature T_{Inner ring}Decrease and when the indoor ambient temperature T_{Inner ring}When the reduction value is larger than the fourth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T_{Inner ring}Not reduced, or when the ambient temperature T in the room is_{Inner ring}When the reduction value is smaller than the fourth preset value, controlling the air conditioner to stop the self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal to remind a user to clean the filter screen; when the air conditioner is in heating state, when the indoor environment temperature T_{Inner ring}Is increased and whenIndoor ambient temperature T_{Inner ring}When the increase value is larger than the fifth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T_{Inner ring}Not increased or when the indoor ambient temperature T_{Inner ring}When the increase value is smaller than the fifth preset value, the air conditioner is controlled to stop the self-adaptive compensation, and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.

According to another aspect of the present invention, there is provided an air conditioner adapted to the control method described above; the air conditioner includes: the detection head of the first temperature sensing bulb is used for being arranged in an indoor environment so as to detect the temperature of the indoor environment; the detection head of the second temperature sensing bulb is arranged on an inner pipe of an indoor unit of the air conditioner so as to detect the temperature of the inner pipe of the air conditioner; the main chip, first temperature sensing package and second temperature sensing package all are connected with the main chip electricity to receive the temperature information that first temperature sensing package and second temperature sensing package sensed.

Further, the air conditioner includes: and the alarm module is electrically connected with the main chip, the main chip is used for sending alarm information to the alarm module according to the received temperature information, and the alarm module sends an alarm signal according to the received alarm information.

Further, the air conditioner includes: the control module is electrically connected with the main chip and the indoor fan of the air conditioner, the main chip is used for sending driving information to the control module according to the received temperature information, and the control module drives the indoor fan to operate according to the received driving information.

By applying the technical scheme, in the control method of the air conditioner, the control method of the air conditioner comprises the steps of performing filth blockage detection on a filter screen of the air conditioner; after the compressor of the air conditioner is continuously operated for a first preset time period t1 and after an indoor fan of the air conditioner is stably operated for a second preset time period t2 at a first preset windshield, the method for detecting the filth blockage of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T_{Inner ring}And inner pipe temperature T of air conditioner_{Inner pipe}(ii) a Comparing the indoor ambient temperature T for a third consecutive predetermined period of time T3_{Inner ring}And a firstLimiting the temperature T_{Limit 1}Magnitude of (1), comparison of indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Magnitude of (1), comparison of inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And whether the filter screen is dirty or blocked by foreign matters is judged according to each comparison result, namely according to the indoor environment temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Comparison result of (1), indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}And the inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to the comparison result.

The filth blockage detection method of the filter screen can realize filth blockage detection of the filter screen by utilizing the components of the air conditioner, namely, the detection components do not need to be added, so that the integral structure of the air conditioner is simpler, and the problem that the structure of the air conditioner is complicated due to the fact that the air conditioner detects whether the filter screen is filth blocked in the prior art is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic flow chart illustrating a filth blockage detection method of a filter screen of an air conditioner in a cooling state according to the present invention;

fig. 2 is a schematic flow chart illustrating a filth blockage detection method of a filter screen of an air conditioner in a heating state according to the present invention;

fig. 3 is a flow chart illustrating a first adaptive compensation method of an air conditioner according to the present invention;

fig. 4 is a flowchart illustrating a second adaptive compensation method of an air conditioner according to the present invention;

fig. 5 is a schematic diagram illustrating the working principle of the main chip, the first thermal bulb, the second thermal bulb, the alarm module and the control module of the air conditioner according to the present invention.

Wherein the figures include the following reference numerals:

10. a main chip; 20. a first bulb; 30. a second bulb; 40. an alarm module; 50. and a control module.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Referring to fig. 1 to 4, the method for controlling an air conditioner includes performing filth blockage detection on a filter screen of the air conditioner; after the compressor of the air conditioner is continuously operated for a first preset time period t1 and after an indoor fan of the air conditioner is stably operated for a second preset time period t2 at a first preset windshield, the method for detecting the filth blockage of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T_{Inner ring}And inner pipe temperature T of air conditioner_{Inner pipe}(ii) a Comparing the indoor ambient temperature T for a third consecutive predetermined period of time T3_{Inner ring}And a first defined temperature T_{Limit 1}Magnitude of (1), comparison of indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Magnitude of (1), comparison of inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And whether the filter screen is dirty or blocked by foreign matters is judged according to each comparison result, namely according to the indoor environment temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Comparison result of (1), indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}And the inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to the comparison result.

In the control method of the air conditioner, the filth blockage detection method of the filter screen can realize filth blockage detection of the filter screen by utilizing the components of the air conditioner, namely, the detection components do not need to be additionally arranged, so that the integral structure of the air conditioner is simpler, and the problem that the structure of the air conditioner is complicated due to the fact that the mode of detecting whether the filter screen is filth blocked by the air conditioner in the prior art is solved.

It should be noted that, when the filter screen is covered by a foreign substance (for example, a curtain, a sofa, etc.) or too much dust, the passing area of the filter screen is affected, and then the ventilation volume of the filter screen is reduced, that is, the air output volume of the air conditioner is reduced, so that the indoor environment does not reach the set temperature under the action of the air conditioner, and at this time, the filter screen is in a state of being blocked by the foreign substance or a dirty and blocked state (that is, a state of being covered by too much dust), so the "dirty and blocked detection of the filter screen" mentioned in this application refers to detecting whether the filter screen is covered by the foreign substance or too much dust.

It should be noted that, after the compressor is continuously operated for the first predetermined time period t1 and after the indoor fan is stably operated for the second predetermined time period t2 at the first predetermined damper, the temperature of the indoor environment tends to be stable; alternatively, t1 is greater than or equal to 10 minutes.

In the present embodiment, the indoor ambient temperature T is detected in real time_{Inner ring}And inner tube temperature T_{Inner pipe}Then, the filth blockage detection method of the filter screen comprises the following steps: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state.

As shown in fig. 1, when the air conditioner is in a cooling state, andwhen the indoor ambient temperature T is within the third continuous preset time period T3_{Inner ring}Greater than a first defined temperature T_{Limit 1}And when the indoor ambient temperature T is_{Inner ring}Greater than the set temperature T of the air conditioner_{Setting up}And when the temperature T of the inner tube is_{Inner pipe}Less than a second defined temperature T_{Limit 2}When is at T_{Inner ring}>T_{Limit 1}And when T is_{Inner ring}>T_{Setting up}And when T is_{Inner pipe}<T_{Limit 2}Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; at the moment, the temperature of the inner pipe is very low, but the indoor environment temperature is higher and cannot reach the set temperature value all the time, namely, the circulation of the air volume of the air conditioner is judged to be poor, so that the cold air of the air conditioner cannot be blown out; wherein the first defined temperature T_{Limit 1}Greater than a second defined temperature T_{Limit 2}。

As shown in fig. 2, when the air conditioner is in a heating state, and during a third continuous predetermined time period T3, when the indoor ambient temperature T is_{Inner ring}Less than a first defined temperature T_{Limit 1}And when the indoor ambient temperature T is_{Inner ring}Less than the set temperature T of the air conditioner_{Setting up}And when the temperature T of the inner tube is_{Inner pipe}Greater than a second defined temperature T_{Limit 2}When is at T_{Inner ring}<T_{Limit 1}And when T is_{Inner ring}<T_{Setting up}And when T is_{Inner pipe}>T_{Limit 2}Judging that the filter screen is in a dirty blocking state or a state of being shielded by foreign matters; at the moment, the temperature of the inner pipe is very high, but the indoor environment temperature is lower and cannot reach the set temperature value all the time, namely, the circulation of the air volume of the air conditioner is judged to be poor, so that the hot air of the air conditioner cannot be blown out; wherein the first defined temperature T_{Limit 1}Less than a second defined temperature T_{Limit 2}。

The first limit temperature T is set to_{Limit 1}And a second defined temperature T_{Limit 2}The air conditioner air quantity control method is characterized in that the air conditioner air quantity control method is determined according to the size of the filter screen, the setting position of the filter screen and the type capacity of the air conditioner, and the specific numerical value needs to be confirmed according to a characteristic table when cold air or hot air in the air conditioner cannot be blown out due to poor air flow circulation of the air conditioner. Alternatively, when the air conditioner is in a cooling state, T_{Limit 1}-T_{Limit 2}Not less than 16 ℃; example (b)E.g. T_{Limit 1}Is 27 degrees, T_{Limit 2}Is 11 degrees.

In this embodiment, as shown in fig. 1 and fig. 2, after determining that the filter screen is in the filth blockage state or in the state blocked by the foreign object, the filth blockage detection method for the filter screen further includes: acquiring the accumulated running time of the air conditioner, and comparing the accumulated running time of the air conditioner with the preset running time M; when the accumulated running time of the air conditioner is less than the preset running time M, judging that the filter screen is in a state of being shielded by foreign matters; and when the accumulated running time of the air conditioner is greater than or equal to the preset running time M, judging that the filter screen is in a filth blockage state.

It should be noted that the preset operation time M is related to the size of the filter screen, the setting position of the filter screen, the use environment of the air conditioner, and other factors. Optionally, the preset running time M is greater than or equal to 60 days,

in this embodiment, after performing the filth blockage detection on the filter screen, the method for controlling the air conditioner further includes: when the filter screen is judged to be shielded by the foreign matters, controlling an alarm module of the air conditioner to send out a first alarm signal so as to remind a user to remove the foreign matters shielding the filter screen; and when the filter screen is judged to be in the dirty and blocked state, controlling the air conditioner to enter a self-adaptive compensation mode.

It should be noted that the adaptive compensation mode of the air conditioner means that after the filter screen is judged to be in the dirty and blocked state, the air conditioner compensates the reduction of the air output caused by the dirty and blocked filter screen by adjusting the operation mode of the air conditioner, and if the air conditioner can compensate the reduction of the air output through the adaptive compensation, that is, the air conditioner can make the indoor environment reach the required temperature through the adaptive compensation, which indicates that the dirty and blocked condition of the filter screen is not particularly serious, and the filter screen is not required to be cleaned temporarily; if the air conditioner can not realize the compensation of the air output reduction through the self-adaptive compensation, namely the indoor environment can not reach the required temperature under the self-adaptive compensation of the air conditioner, the condition that the filter screen is seriously dirty and blocked is shown, and the cleaning treatment is required.

In this embodiment, as shown in fig. 3, a first compensation method of the air conditioner is as follows: operation of the air conditioner after the air conditioner enters the adaptive compensation modeStep S1 includes: increasing an operating damper of the indoor fan and operating the indoor fan on the increased damper for a fourth predetermined time period t 4; wherein, the running windshield of the indoor fan is controlled to increase at least one gear; or increasing the rotating speed of the indoor fan and enabling the indoor fan to operate for a fifth preset time period t5 at the increased rotating speed, so that the circulation capacity of air in the air conditioner can be increased, and the air output of the air conditioner is increased; detecting indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Difference between, indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}And the temperature T of the inner tube_{Inner pipe}And a second defined temperature T_{Limit 2}Whether the differences between are all decreasing.

Specifically, the control method of the air conditioner further includes: repeating the operation step S1 of the air conditioner at least once, namely, within the capacity range of the indoor fan, continuously increasing the operation windshield of the indoor fan or continuously increasing the rotating speed of the indoor fan so as to increase the compensation intensity.

When the indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Difference between, indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Difference therebetween and inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}The difference between the two is reduced, and when the indoor ambient temperature T is lower_{Inner ring}And a first defined temperature T_{Limit 1}The difference between the first and second predetermined difference is less than or equal to the first predetermined difference, the indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}The difference between the two is less than or equal to a second preset difference, the temperature T of the inner tube_{Inner pipe}And a second defined temperature T_{Limit 2}When the difference value is less than or equal to the third preset difference value, the adaptive compensation of the air conditioner is judged to be effective, and the air conditioner is controlled to stop the adaptive compensation.

When the indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Difference between, indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Difference therebetween and inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}If the difference between the first and second values is not reduced, namely the adaptive compensation of the air conditioner is not effective, the air conditioner is controlled to stop the adaptive compensation and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.

Or when the indoor ambient temperature T_{Inner ring}And a first defined temperature T_{Limit 1}The reduced value of the difference between the first and second preset values is less than the first preset value, and the indoor environment temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}The reduced value of the difference between the two is less than the second preset value, the temperature T of the inner tube_{Inner pipe}And a second defined temperature T_{Limit 2}And if the reduction value of the difference values is smaller than a third preset value, namely the reduction amplitude of each difference value is very small, namely the self-adaptive compensation of the air conditioner is not effective, controlling the air conditioner to stop the self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal to remind a user of cleaning the filter screen.

In this embodiment, as shown in fig. 4, a second compensation method of the air conditioner is as follows: after the air conditioner enters the adaptive compensation mode, the operation step S2 of the air conditioner includes: acquiring the running state of the air conditioner; the operation state comprises a heating state and a cooling state.

When the air conditioner is in a cooling state, controlling the set temperature of the air conditioner to reduce the first preset temperature, and enabling the air conditioner to operate at the reduced set temperature for a sixth preset time period t6 to compensate the problems that the air output is small and the indoor environment temperature is difficult to reduce; detecting indoor ambient temperature T_{Inner ring}Whether or not to decrease. Optionally, the first predetermined temperature is 1 degree.

When the air conditioner is in a heating state, controlling the set temperature of the air conditioner to increase the second preset temperature, and enabling the air conditioner to operate at the increased set temperature for a seventh preset time period t7 to compensate the problems that the air output is small and the indoor environment temperature is difficult to rise; detecting indoor ambient temperature T_{Inner ring}Whether it is increased. Optionally, the second predetermined temperature is 1 degree.

Specifically, the control method of the air conditioner further includes: the operation step S2 of the air conditioner is repeated at least once, that is, the set temperature is continuously decreased or increased within the proper temperature range to increase the compensation intensity.

When the air conditioner is in a cooling state, when the indoor ambient temperature T_{Inner ring}Decrease and when the indoor ambient temperature T_{Inner ring}When the reduction value is larger than the fourth preset value, judging that the self-adaptive compensation of the air conditioner is effective, and controlling the air conditioner to stop the self-adaptive compensation; when the indoor ambient temperature T_{Inner ring}Not reduced, or when the ambient temperature T in the room is_{Inner ring}Is less than the fourth preset value, i.e. the indoor ambient temperature T_{Inner ring}If the reduction amplitude is very small, the air conditioner is controlled to stop the self-adaptive compensation and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen;

when the air conditioner is in heating state, when the indoor environment temperature T_{Inner ring}Increase and when the indoor ambient temperature T_{Inner ring}When the increase value is larger than the fifth preset value, judging that the self-adaptive compensation of the air conditioner is effective, and controlling the air conditioner to stop the self-adaptive compensation; when the indoor ambient temperature T_{Inner ring}Not increased or when the indoor ambient temperature T_{Inner ring}Is less than the fifth preset value, i.e. the indoor ambient temperature T_{Inner ring}If the increase amplitude is small, the air conditioner is controlled to stop the self-adaptive compensation, and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.

Alternatively, the sixth predetermined time period t6 is 30 minutes and the seventh predetermined time period t7 is 30 minutes.

In this embodiment, the present invention further provides an air conditioner, which is suitable for the control method; as shown in fig. 5, the air conditioner includes: a first bulb 20, a detection head of the first bulb 20 is used for being arranged in an indoor environment to detect the indoor environment temperature; the second temperature sensing bulb 30, the detection head of the second temperature sensing bulb 30 is set on the inner pipe of the indoor machine of the air conditioner, in order to detect the inner pipe temperature of the air conditioner; the main chip 10, the first thermal bulb 20 and the second thermal bulb 30 are all electrically connected with the main chip 10 to receive temperature information sensed by the first thermal bulb 20 and the second thermal bulb 30.

Specifically, the detection head of the second bulb 30 is disposed on the inner tube of the indoor unit near the evaporator.

Specifically, the air conditioner includes an alarm module 40, the alarm module 40 is electrically connected to the main chip 10, the main chip 10 is configured to send alarm information to the alarm module 40 according to the received temperature information, and the alarm module 40 sends an alarm signal according to the received alarm information, that is, the alarm module 40 sends a first alarm signal or a second alarm signal according to the received alarm information.

Specifically, the alarm module 40 includes a buzzer or a voice broadcast component; the alarm module 40 also includes a display component for displaying alarm information.

Specifically, the air conditioner comprises a control module 50, the control module 50 is electrically connected with both a main chip 10 and an indoor fan of the air conditioner, the main chip 10 is used for sending driving information to the control module 50 according to the received temperature information, and the control module 50 drives the indoor fan to operate according to the received driving information.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

in the control method of the air conditioner, the control method of the air conditioner comprises the steps of carrying out filth blockage detection on a filter screen of the air conditioner; after the compressor of the air conditioner is continuously operated for a first preset time period t1 and after an indoor fan of the air conditioner is stably operated for a second preset time period t2 at a first preset windshield, the method for detecting the filth blockage of the filter screen comprises the following steps: real-time detection of indoor ambient temperature T_{Inner ring}And inner pipe temperature T of air conditioner_{Inner pipe}(ii) a Comparing the indoor ambient temperature T for a third consecutive predetermined period of time T3_{Inner ring}And a first defined temperature T_{Limit 1}Magnitude of (1), comparison of indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}Magnitude of (1), comparison of inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And whether the filter screen is dirty or blocked by foreign matters is judged according to each comparison result, namely according to the indoor environment temperature T_{Inner ring}And a first defined temperature T_{Limit 1}Comparison result of (1), indoor ambient temperature T_{Inner ring}And the set temperature T of the air conditioner_{Setting up}And the inner tube temperature T_{Inner pipe}And a second defined temperature T_{Limit 2}And judging whether the filter screen is dirty or not or whether the filter screen is shielded by foreign matters or not according to the comparison result.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The control method of the air conditioner is characterized by comprising the steps of carrying out filth blockage detection on a filter screen of the air conditioner; after the compressor of the air conditioner is continuously operated for a first preset time period t1 and after an indoor fan of the air conditioner is stably operated for a second preset time period t2 at a first preset windshield, the method for detecting the filth blockage of the filter screen comprises the following steps:

real-time detection of indoor ambient temperature T_{Inner ring}And the inner pipe temperature T of the air conditioner_{Inner pipe}；

Comparing said indoor ambient temperature T for a third consecutive predetermined period of time T3_{Inner ring}And a first defined temperature T_{Limit 1}Comparing the indoor ambient temperature T_{Inner ring}And a set temperature T of the air conditioner_{Setting up}Comparing the temperature T of the inner tube_{Inner pipe}And a second defined temperature T_{Limit 2}And determining whether the filter screen is dirty or blocked by foreign matters according to each comparison result.

2. The control method of an air conditioner according to claim 1, wherein the indoor ambient temperature T is detected in real time_{Inner ring}And inner tube temperature T_{Inner pipe}Then, the filth blockage detection method of the filter screen comprises the following steps:

acquiring the running state of the air conditioner; wherein the operation state comprises a heating state and a cooling state;

when the air conditioner is in a cooling state and in a continuous third preset time period T3, when the indoor environment temperature T_{Inner ring}Greater than said first limit temperature T_{Limit 1}And when the indoor ambient temperature T is_{Inner ring}Is greater than the set temperature T of the air conditioner_{Setting up}And when the temperature T of the inner tube is higher than the temperature T of the inner tube_{Inner pipe}Less than the second limit temperature T_{Limit 2}Judging that the filter screen is in a dirty blocking state or a state blocked by foreign matters; wherein the first defined temperature T_{Limit 1}Greater than the second limit temperature T_{Limit 2}；

When the air conditioner is in a heating state and in a continuous third preset time period T3, when the indoor environment temperature T_{Inner ring}Less than the first limit temperature T_{Limit 1}And when the indoor ambient temperature T is_{Inner ring}Less than the set temperature T of the air conditioner_{Setting up}And when the temperature T of the inner tube is higher than the temperature T of the inner tube_{Inner pipe}Greater than the second limit temperature T_{Limit 2}Judging that the filter screen is in a dirty blocking state or a state blocked by foreign matters; wherein the first defined temperature T_{Limit 1}Less than the second limit temperature T_{Limit 2}。

3. The method for controlling an air conditioner according to claim 1, wherein after determining that the filter screen is in a filthy blockage state or in a state blocked by foreign matter, the method for detecting filthy blockage of the filter screen further comprises:

acquiring the accumulated running time of the air conditioner, and comparing the accumulated running time of the air conditioner with the preset running time M;

when the accumulated running time of the air conditioner is less than the preset running time M, judging that the filter screen is in a state of being shielded by foreign matters; and when the accumulated running time of the air conditioner is greater than or equal to the preset running time M, judging that the filter screen is in a dirty and blocked state.

4. The control method of an air conditioner according to claim 3, further comprising, after performing filth blockage detection on the filter screen:

when the filter screen is judged to be shielded by the foreign matters, controlling an alarm module of the air conditioner to send out a first alarm signal so as to remind a user to remove the foreign matters shielding the filter screen;

and when the filter screen is judged to be in the dirty and blocked state, controlling the air conditioner to enter a self-adaptive compensation mode.

5. The control method of an air conditioner according to claim 4, wherein the operating step of the air conditioner after the air conditioner enters the adaptive compensation mode includes:

increasing an operating damper of the indoor fan and operating the indoor fan on the increased damper for a fourth predetermined time period t 4; controlling an operation windshield of the indoor fan to increase by at least one gear; or increasing the rotating speed of the indoor fan and operating the indoor fan at the increased rotating speed for a fifth preset time period t 5;

detecting the indoor ambient temperature T_{Inner ring}And said first defined temperature T_{Limit 1}Difference therebetween, said indoor ambient temperature T_{Inner ring}And a set temperature T of the air conditioner_{Setting up}And the inner tube temperature T_{Inner pipe}And said second defined temperature T_{Limit 2}Whether the differences between are all decreasing.

6. The control method of an air conditioner according to claim 5, further comprising: repeating at least once the operation of the air conditioner as set forth in claim 5;

when the indoor ambient temperature T_{Inner ring}And said first defined temperature T_{Limit 1}Difference therebetween, said indoor ambient temperature T_{Inner ring}And a set temperature T of the air conditioner_{Setting up}Difference therebetween and said inner tube temperature T_{Inner pipe}And said second defined temperature T_{Limit 2}The difference between the indoor ambient temperature T and the indoor ambient temperature T is reduced_{Inner ring}And said first defined temperature T_{Limit 1}The difference between the indoor ambient temperature T and the first predetermined difference is less than or equal to_{Inner ring}And a set temperature T of the air conditioner_{Setting up}The difference between the two is less than or equal to a second preset difference, the temperature T of the inner tube_{Inner pipe}And said second defined temperature T_{Limit 2}When the difference value is less than or equal to a third preset difference value, judging that the adaptive compensation of the air conditioner is effective;

when the indoor ambient temperature T_{Inner ring}And said first defined temperature T_{Limit 1}Difference therebetween, said indoor ambient temperature T_{Inner ring}And a set temperature T of the air conditioner_{Setting up}Difference therebetween and said inner tube temperature T_{Inner pipe}And said second defined temperature T_{Limit 2}The difference therebetween is not reduced, or when the indoor ambient temperature T is not reduced_{Inner ring}And said first defined temperature T_{Limit 1}A reduced value of the difference between the indoor ambient temperature T and the first preset value is less than_{Inner ring}And a set temperature T of the air conditioner_{Setting up}A reduced value of the difference between the two is less than a second preset value, the temperature T of the inner tube_{Inner pipe}And said second defined temperature T_{Limit 2}And if the reduction value of the difference value is smaller than a third preset value, controlling the air conditioner to stop self-adaptive compensation and controlling an alarm module of the air conditioner to send a second alarm signal to remind a user to clean the filter screen.

7. The control method of an air conditioner according to claim 4, wherein the operating step of the air conditioner after the air conditioner enters the adaptive compensation mode includes:

when the air conditioner is in a cooling state, controlling the set temperature of the air conditioner to be reduced by a first preset temperature, and enabling the air conditioner to operate at the reduced set temperature for a sixth preset time period t 6; detecting the indoor ambient temperature T_{Inner ring}Whether to decrease;

when the air conditioner is in a heating state, controlling the set temperature of the air conditioner to be increased by a second preset temperature, and enabling the air conditioner to operate at the increased set temperature for a seventh preset time period t 7; detecting the indoor ambient temperature T_{Inner ring}Whether it is increased.

8. The control method of an air conditioner according to claim 7, further comprising: repeating at least once the operation of the air conditioner as set forth in claim 7;

when the air conditioner is in a cooling state, when the indoor ambient temperature T is lower than the indoor ambient temperature T_{Inner ring}Decrease and when the indoor ambient temperature T_{Inner ring}When the reduction value is larger than a fourth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T_{Inner ring}Not reduced, or when the indoor ambient temperature T_{Inner ring}When the reduction value is smaller than the fourth preset value, controlling the air conditioner to stop self-adaptive compensation and controlling an alarm module of the air conditioner to send out a second alarm signal to remind a user to clean the filter screen;

when the air conditioner is in heating state, when the indoor environment temperature T is_{Inner ring}Increase and when the indoor ambient temperature T_{Inner ring}When the increase value is larger than a fifth preset value, judging that the self-adaptive compensation of the air conditioner is effective; when the indoor ambient temperature T_{Inner ring}Not increased or when the indoor ambient temperature T_{Inner ring}When the increase value of the second preset value is smaller than the fifth preset value, the air conditioner is controlled to stop self-adaptive compensation, and an alarm module of the air conditioner is controlled to send out a second alarm signal to remind a user to clean the filter screen.

9. An air conditioner characterized in that the air conditioner is adapted to the control method of any one of claims 1 to 8; the air conditioner includes:

the first temperature sensing bulb (20), the detection head of the first temperature sensing bulb (20) is used for being arranged in an indoor environment to detect the indoor environment temperature;

the detection head of the second temperature sensing bulb (30) is arranged on an inner pipe of an indoor unit of the air conditioner so as to detect the temperature of the inner pipe of the air conditioner;

the temperature sensing device comprises a main chip (10), wherein the first temperature sensing bulb (20) and the second temperature sensing bulb (30) are electrically connected with the main chip (10) so as to receive temperature information sensed by the first temperature sensing bulb (20) and the second temperature sensing bulb (30).

10. The air conditioner according to claim 9, wherein the air conditioner is adapted to the control method of the air conditioner according to claim 4 or 6; the air conditioner includes:

the alarm module (40) is electrically connected with the main chip (10), the main chip (10) is used for sending alarm information to the alarm module (40) according to the received temperature information, and the alarm module (40) sends out an alarm signal according to the received alarm information.

11. The air conditioner according to claim 9, wherein the air conditioner is adapted to the control method of the air conditioner according to any one of claims 5 to 8; the air conditioner includes:

the control module (50) is electrically connected with the main chip (10) and the indoor fan of the air conditioner, the main chip (10) is used for sending driving information to the control module (50) according to the received temperature information, and the control module (50) drives the indoor fan to operate according to the received driving information.