CN114234416A

CN114234416A - Air conditioner and control method thereof

Info

Publication number: CN114234416A
Application number: CN202111416026.0A
Authority: CN
Inventors: 陆建松; 张飞
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-03-25

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner and a control method thereof, and aims to solve the problem that the normal use of the existing air conditioner is influenced by false alarm and shutdown after starting up when the existing air conditioner runs in a refrigerating mode in winter. To this end, the air conditioner of the present invention is configured to be able to acquire an outdoor wind speed, and the control method of the air conditioner includes: acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode; determining the running time and running frequency of a compressor of the air conditioner and corresponding temperature rise threshold and current range according to the outdoor wind speed and the outdoor temperature; controlling the compressor to operate at the determined operation frequency for the determined operation duration and obtaining an exhaust temperature rise value and a current value of the compressor; judging whether the exhaust temperature rise value is smaller than a temperature rise threshold value or not and whether the current value is in a current range or not; if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, an alarm is sent out and/or the air conditioner is shut down, otherwise, the air conditioner is controlled to normally operate, and false alarm and shutdown of the air conditioner are avoided.

Description

Air conditioner and control method thereof

Technical Field

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

Background

With the continuous improvement of the living standard of people, the air conditioner becomes a necessary household appliance in the life of people. Generally, people cool by means of an air conditioner in summer to reduce the ambient temperature, thereby improving the comfort of the environment where the user is located. In the daily use process, the condition that the exhaust temperature of the compressor is low due to insufficient refrigerant in the refrigerant circulation loop can occur, and the refrigeration efficiency of the air conditioner is low or even the air conditioner cannot refrigerate. In order to avoid the situation that the air conditioner still performs refrigeration operation under the condition that the exhaust temperature of the compressor is low, so that the refrigeration efficiency is low or even the air conditioner cannot perform refrigeration, the existing air conditioner detects the exhaust temperature of the compressor after the set time of starting operation in the refrigeration operation process, and sends out an alarm and controls the air conditioner to stop when the exhaust temperature is lower than the preset temperature. Through the arrangement, a user can contact after-sales maintenance personnel to maintain the air conditioner when the air conditioner gives an alarm and stops working, so that the condition that the air conditioner still operates when the exhaust temperature of the compressor is low is avoided.

In winter, central heating is usually performed in northern areas. Wherein, in northeast, because outdoor ambient temperature is lower, the heat supply pipeline heat scatters and disappears great, in order to guarantee that all users' indoor temperature can both reach the heating temperature that requires, and the heat supply is great usually, and the most users indoor ambient temperature who is located the heat supply pipeline upper reaches can reach very high, and the user can feel uncomfortable indoor. Part user can select to open the window and avoid indoor high temperature, and it is lower to be close to window position temperature indoor like this, and the position temperature that is close to the heating installation fin is higher, and indoor ambient temperature is inhomogeneous, and indoor comfort is still lower. In order to improve the comfort level in the room, people choose to use an air conditioner to cool the room. However, after the compressor is started, the outdoor temperature is low, so that the exhaust temperature of the compressor cannot reach the preset temperature within the set time, an alarm is given out, the compressor is stopped, and the normal use of a user is influenced.

Therefore, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

The invention aims to solve the technical problems, namely, the problem that the normal use of the existing air conditioner is influenced by false alarm and shutdown after starting up during the refrigeration operation in winter.

In a first aspect, the present invention provides a control method of an air conditioner provided to be able to acquire an outdoor wind speed, the control method comprising:

acquiring outdoor temperature and outdoor wind speed after the air conditioner enters a refrigeration mode;

determining the running time and the running frequency of a compressor of the air conditioner and corresponding temperature rise threshold and current range according to the outdoor wind speed and the outdoor temperature;

controlling the compressor to operate at the operating frequency for the operating duration and obtaining an exhaust temperature rise value and a current value of the compressor;

judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not and whether the current value is in the current range or not;

and if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.

In a preferred technical solution of the above control method, the step of determining the operation duration and the operation frequency of the compressor of the air conditioner and the corresponding temperature rise threshold and current range according to the outdoor wind speed and the outdoor temperature includes:

if the outdoor temperature is less than a first preset temperature and greater than or equal to a second preset temperature, and the outdoor wind speed is less than a preset wind speed, determining that the operation time length, the operation frequency, the temperature rise threshold value and the current range are respectively a first preset time length, a first preset frequency, a first temperature rise threshold value and a first preset current range;

if the outdoor temperature is less than the first preset temperature and greater than or equal to the second preset temperature, and the outdoor wind speed is not less than the preset wind speed, determining that the operation time length, the operation frequency, the temperature rise threshold value and the current range are respectively a second preset time length, a second preset frequency, a second temperature rise threshold value and a second preset current range;

the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to 2 ℃ and less than or equal to 2 ℃, the preset wind speed is more than or equal to 5.4m/s and less than or equal to 3.4m/s, the first preset frequency is more than or equal to 52Hz and less than or equal to 48Hz, the second preset frequency is more than or equal to 57Hz and less than or equal to 53Hz, the first preset time length is more than or equal to 17min and less than or equal to 23min, the second preset time length is more than or equal to 27min and less than or equal to 33min, the first temperature rise threshold value is more than or equal to 51 ℃, and the second temperature rise threshold value is more than or equal to 44 ℃ and less than or equal to 46 ℃.

if the outdoor temperature is less than a second preset temperature and greater than or equal to a third preset temperature, and the outdoor wind speed is less than a preset wind speed, determining that the operation time length, the operation frequency, the temperature rise threshold value and the current range are respectively a third preset time length, a third preset frequency, a third temperature rise threshold value and a third preset current range;

if the outdoor temperature is less than the second preset temperature and greater than or equal to the third preset temperature, and the outdoor wind speed is not less than the preset wind speed, determining that the operation time length, the operation frequency, the temperature rise threshold value and the current range are respectively a fourth preset time length, a fourth preset frequency, a fourth temperature rise threshold value and a fourth preset current range;

wherein the second preset temperature is more than or equal to-2 ℃, the third preset temperature is more than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is more than or equal to 57Hz, the fourth preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the third preset time is more than or equal to 27min and less than or equal to 33min, the fourth preset time is more than or equal to 37min and less than or equal to 43min, the third temperature rise threshold is more than or equal to 44 ℃, the fourth temperature rise threshold is more than or equal to 46 ℃, and 39 ℃ and less than or equal to 41 ℃.

if the outdoor temperature is lower than a third preset temperature and the outdoor wind speed is lower than a preset wind speed, determining that the operation time length, the operation frequency, the temperature rise threshold value and the current range are respectively a fifth preset time length, a fifth preset frequency, a fifth temperature rise threshold value and a fifth preset current range;

if the outdoor temperature is lower than the third preset temperature and the outdoor wind speed is not lower than the preset wind speed, determining that the operation time length, the operation frequency, the temperature rise threshold value and the current range are respectively a sixth preset time length, a sixth preset frequency, a sixth temperature rise threshold value and a sixth preset current range;

wherein the third preset temperature is more than or equal to-12 ℃, the third preset temperature is more than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the sixth preset frequency is more than or equal to 63Hz and less than or equal to 67Hz, the fifth preset time is more than or equal to 32min and less than or equal to 38min, the sixth preset time is more than or equal to 42min and less than or equal to 48min, the fifth temperature rise threshold is more than or equal to 39 ℃, the fifth temperature rise threshold is more than or equal to 41 ℃, and the sixth temperature rise threshold is more than or equal to 34 ℃ and less than or equal to 36 ℃.

In a preferred technical solution of the above control method, the air conditioner is an air conditioner capable of connecting to a network, and the step of "acquiring the outdoor wind speed" specifically includes:

and acquiring the outdoor wind speed through a network.

In the technical scheme of the invention, after the air conditioner enters a refrigeration mode, the running time length and the running frequency of a compressor of the air conditioner and the corresponding temperature rise threshold value and current range are determined according to the outdoor air speed and the outdoor air speed, the compressor is controlled to run for the determined running time length at the determined running frequency and the exhaust temperature rise value and the current value of the compressor are obtained, whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not and whether the current value is in the current range or not are judged, if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, an alarm and/or a machine halt are sent out, otherwise, the normal running of the air conditioner is controlled, the condition that the air conditioner is subjected to false alarm and machine halt operation error due to the fact that the selective alarm and machine halt mode is influenced by low temperature is judged whether the refrigerant is lacked or not according to the preset fixed exhaust temperature in the refrigeration running in winter is avoided, whether the air conditioner lacks the refrigerant can be judged more accurately, so that normal operation refrigeration of the air conditioner in winter is guaranteed under the condition that the refrigerant is not lacked, and a user can timely find out the fault of the air conditioner and maintain the air conditioner under the condition that the refrigerant is lacked.

In a second aspect, the present invention also provides a control method of an air conditioner provided to be able to acquire an outdoor wind speed, the control method comprising:

determining the running time length, the running frequency and the corresponding temperature rise threshold of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature;

controlling the compressor to operate at the operating frequency for the operating duration and obtaining an exhaust temperature rise value of the compressor;

judging whether the exhaust temperature rise value is smaller than the temperature rise threshold value or not;

and if the exhaust temperature rise value is smaller than the temperature rise threshold value, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.

In a preferred technical solution of the above control method, the step of determining the operation duration, the operation frequency, and the corresponding temperature rise threshold of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:

if the outdoor temperature is less than a first preset temperature and greater than or equal to a second preset temperature, and the outdoor wind speed is less than a preset wind speed, determining that the operation time length, the operation frequency and the temperature rise threshold are respectively a first preset time length, a first preset frequency and a first temperature rise threshold;

if the outdoor temperature is less than the first preset temperature and greater than or equal to the second preset temperature, and the outdoor wind speed is not less than the preset wind speed, determining that the operation time length, the operation frequency and the temperature rise threshold are respectively a second preset time length, a second preset frequency and a second temperature rise threshold;

wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to 2 ℃ and less than or equal to 2 ℃, the preset wind speed is more than or equal to 5.4m/s and less than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is more than or equal to 52Hz and less than or equal to 48Hz, the second preset frequency is more than or equal to 57Hz and less than or equal to 53Hz, the first preset time is more than or equal to 17min and less than or equal to 23min, the second preset time is more than or equal to 27min and less than or equal to 33min, the first temperature rise threshold is more than or equal to 49 ℃ and less than or equal to 51 ℃, and the second temperature rise threshold is more than or equal to 46 ℃;

and/or

If the outdoor temperature is less than a second preset temperature and greater than or equal to a third preset temperature, and the outdoor wind speed is less than a preset wind speed, determining that the operation time length, the operation frequency and the temperature rise threshold are respectively a third preset time length, a third preset frequency and a third temperature rise threshold;

if the outdoor temperature is less than the second preset temperature and greater than or equal to the third preset temperature, and the outdoor wind speed is not less than the preset wind speed, determining that the operation time length, the operation frequency and the temperature rise threshold are respectively a fourth preset time length, a fourth preset frequency and a fourth temperature rise threshold;

wherein the second preset temperature is more than or equal to-2 ℃, the third preset temperature is more than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is more than or equal to 57Hz, the fourth preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the third preset time is more than or equal to 27min and less than or equal to 33min, the fourth preset time is more than or equal to 37min and less than or equal to 43min, the third temperature rise threshold is more than or equal to 44 ℃, the fourth temperature rise threshold is more than or equal to 46 ℃, and 39 ℃ and less than or equal to 41 ℃;

and/or

If the outdoor temperature is lower than a third preset temperature and the outdoor wind speed is lower than a preset wind speed, determining that the operation time length, the operation frequency and the temperature rise threshold are respectively a fifth preset time length, a fifth preset frequency and a fifth temperature rise threshold;

if the outdoor temperature is lower than the third preset temperature and the outdoor wind speed is not lower than the preset wind speed, determining that the operation time length, the operation frequency and the temperature rise threshold are respectively a sixth preset time length, a sixth preset frequency and a sixth temperature rise threshold;

In the technical scheme of the invention, after the air conditioner enters a refrigeration mode, the operation time length, the operation frequency and the corresponding temperature rise threshold value of a compressor of the air conditioner are determined according to the outdoor temperature and the outdoor wind speed by acquiring the outdoor temperature and the outdoor wind speed, the operation time length determined by the operation of the compressor at the determined operation frequency is controlled by controlling the compressor, the exhaust temperature rise value of the compressor is acquired, whether the exhaust temperature rise value is smaller than the temperature rise threshold value is judged, if the exhaust temperature rise value is smaller than the temperature rise threshold value, an alarm and/or a shutdown are/is sent out, otherwise, the air conditioner is controlled to normally operate, the condition that the mode that the air conditioner judges whether the air conditioner lacks the refrigerant according to the preset fixed exhaust temperature during the refrigeration operation in winter and selectively alarms and shuts down due to the influence of low temperature is avoided, the condition that false alarm and false shutdown operation is generated is avoided, whether the refrigerant is lacked can be judged more accurately, so that the normal operation refrigeration of the air conditioner in winter is ensured without the refrigerant lacking, and a user sends out timely under the condition that the refrigerant is lacked The air conditioner is out of order and maintained.

In a third aspect, the present invention also provides a control method of an air conditioner provided to be able to acquire an outdoor wind speed, the control method comprising:

determining the running time, the running frequency and the corresponding current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature;

controlling the compressor to operate at the operating frequency for the operating time period and obtaining a current value of the compressor;

judging whether the current value is in the current range or not;

and if the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.

In a preferred embodiment of the above control method, the step of determining the operation duration, the operation frequency, and the corresponding current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature includes:

if the outdoor temperature is less than a first preset temperature and greater than or equal to a second preset temperature, and the outdoor wind speed is less than a preset wind speed, determining that the operation time length, the operation frequency and the current range are respectively a first preset time length, a first preset frequency and a first preset current range;

if the outdoor temperature is less than the first preset temperature and greater than or equal to the second preset temperature, and the outdoor wind speed is not less than the preset wind speed, determining that the operation time length, the operation frequency and the current range are respectively a second preset time length, a second preset frequency and a second preset current range;

wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to 2 ℃ and less than or equal to 2 ℃, the preset wind speed is more than or equal to 5.4m/s and less than or equal to 3.4m/s, the first preset frequency is more than or equal to 52Hz and less than or equal to 48Hz, the second preset frequency is more than or equal to 57Hz and less than or equal to 53Hz, the first preset time is more than or equal to 17min and less than or equal to 23min, and the second preset time is more than or equal to 27min and less than or equal to 33 min;

and/or

If the outdoor temperature is less than a second preset temperature and greater than or equal to a third preset temperature, and the outdoor wind speed is less than a preset wind speed, determining that the operation time length, the operation frequency and the current range are respectively a third preset time length, a third preset frequency and a third preset current range;

if the outdoor temperature is less than the second preset temperature and greater than or equal to the third preset temperature, and the outdoor wind speed is not less than a preset wind speed, determining that the operation time length, the operation frequency and the current range are respectively a fourth preset time length, a fourth preset frequency and a fourth preset current range;

wherein the second preset temperature is more than or equal to-2 ℃, the third preset temperature is more than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the third preset frequency is more than or equal to 57Hz and less than or equal to 53Hz, the fourth preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the third preset time is more than or equal to 27min and less than or equal to 33min, and the fourth preset time is more than or equal to 37min and less than or equal to 43 min;

and/or

If the outdoor temperature is lower than a third preset temperature and the outdoor wind speed is lower than a preset wind speed, determining that the operation time length, the operation frequency and the current range are respectively a fifth preset time length, a fifth preset frequency and a fifth preset current range;

if the outdoor temperature is lower than the third preset temperature and the outdoor wind speed is not lower than the preset wind speed, determining that the operation time length, the operation frequency and the current range are respectively a sixth preset time length, a sixth preset frequency and a sixth preset current range;

the third preset temperature is more than or equal to-12 ℃, the third preset temperature is more than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the fifth preset frequency is more than or equal to 58Hz and less than or equal to 62Hz, the sixth preset frequency is more than or equal to 63Hz and less than or equal to 67Hz, the fifth preset time is more than or equal to 32min and less than or equal to 38min, and the sixth preset time is more than or equal to 42min and less than or equal to 48 min.

In the technical scheme of the invention, after the air conditioner enters a refrigeration mode, the operation time length, the operation frequency and the corresponding current range of a compressor of the air conditioner are determined according to the outdoor temperature and the outdoor wind speed, the operation time length determined by the operation of the compressor at the determined operation frequency is controlled, the current value of the compressor is obtained, whether the current value is in the current range is judged, if the current value is not in the current range, an alarm and/or a shutdown is sent out, otherwise, the air conditioner is controlled to normally operate, the condition that the air conditioner is lack of refrigerant in winter, whether the refrigerant is lack of refrigerant is judged only according to the preset fixed exhaust temperature and the mode of selective alarm shutdown is influenced by low temperature to generate false alarm and false shutdown operation is avoided, whether the refrigerant is lack of refrigerant can be judged more accurately, so that the normal operation refrigeration of the air conditioner in winter is ensured under the condition of no refrigerant lack, and a user can find the air conditioner in time under the condition of lack of refrigerant Fail and perform maintenance on it.

In a fourth aspect, the present invention also provides an air conditioner comprising: a memory; a processor; and a computer program stored in the memory and configured to be executed by the processor to implement the control method of the air conditioner in any one of the above-described technical aspects.

It should be noted that the air conditioner has all the technical effects of the above control method, and details are not described herein.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

fig. 1 is a main step diagram of a control method of an air conditioner according to a first embodiment of the present invention;

fig. 2 is a flowchart of a control method of an air conditioner according to a first embodiment of the present invention;

fig. 3 is a diagram illustrating major steps of a control method of an air conditioner according to a second embodiment of the present invention;

fig. 4 is a flowchart of a control method of an air conditioner according to a second embodiment of the present invention;

fig. 5 is a diagram illustrating major steps of a control method of an air conditioner according to a third embodiment of the present invention;

fig. 6 is a flowchart of a control method of an air conditioner according to a third embodiment of the present invention.

Detailed Description

First, it should be understood by those skilled in the art that the embodiments described below are merely for explaining technical principles of the present invention, and are not intended to limit the scope of the present invention. For example, the control method of the air conditioner of the present invention is suitable for a wall-mounted air conditioner, a cabinet air conditioner, a single-cooling air conditioner, a dual-purpose air conditioner, and the like. Such adjustments to the specific type of application object should not be construed as limiting the invention, but should be within the scope of the invention.

It should be noted that the terms "first", "second", "third", "fourth", "fifth" and "sixth" in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

A control method of an air conditioner according to a first embodiment of the present invention will be described with reference to fig. 1 and 2. Fig. 1 is a main step diagram of a control method of an air conditioner according to a first embodiment of the present invention, and fig. 2 is a flowchart of the control method of the air conditioner according to the first embodiment of the present invention.

Based on the problem that the normal use of the existing air conditioner is easily influenced by alarming and stopping after starting up when the air conditioner operates in winter refrigeration, the invention provides a control method of the air conditioner.

In a first embodiment of the present invention, the air conditioner of the present invention is configured to be able to acquire an outdoor wind speed, for example, the air conditioner is an air conditioner capable of connecting to a network. As shown in fig. 1, the control method of the air conditioner of the present invention mainly comprises the following steps:

and S100, acquiring the outdoor temperature and the outdoor wind speed after the air conditioner enters the refrigeration mode.

An outdoor portion of the air conditioner is provided with an outdoor temperature sensor that detects an outdoor ambient temperature. When the air conditioner enters a refrigeration mode according to an instruction of a user, the controller acquires the outdoor environment temperature through the outdoor temperature sensor, acquires local weather information through a connected network and further acquires the outdoor wind speed from the local weather information.

And S200, determining the running time and the running frequency of a compressor of the air conditioner and corresponding temperature rise threshold and current range according to the outdoor wind speed and the outdoor temperature.

And step S300, controlling the compressor to operate for a determined operation time at a determined operation frequency, and acquiring a discharge temperature rise value and a current value of the compressor. It should be noted that the discharge temperature increase value refers to a difference between a discharge temperature after the compressor is operated at a certain operation frequency for a certain operation time period and a discharge temperature at which the compressor starts to operate.

And S400, judging whether the exhaust temperature rise value is smaller than a temperature rise threshold value and whether the current value is in a current range.

And S500, if the exhaust temperature rise value is smaller than the temperature rise threshold value and the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.

Specifically, as shown in fig. 2, the control method of the air conditioner of the present invention includes the steps of:

and step S110, acquiring the outdoor temperature and the outdoor wind speed after the air conditioner enters the cooling mode. After step S110, the process proceeds to step S210, step S220, step S230, step S240, step S250, and step S260, respectively.

And S210, determining the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature, and determining the outdoor wind speed and the first preset wind speed as a first preset time, a first preset frequency, a first temperature rise threshold and a first preset current range. After step S210, the process jumps to step S310.

And S220, determining the second preset time length, the second preset frequency, the second temperature rise threshold and the second preset current range if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is greater than or equal to the preset wind speed. After step S220, it jumps to step S320.

And S230, determining the third preset time length, the third preset frequency, the third temperature rise threshold and the third preset current range if the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature and the outdoor wind speed is less than the preset wind speed. After step S230, it jumps to step S330.

And S240, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and the outdoor wind speed is greater than or equal to the preset wind speed, and determining the fourth preset time, the fourth preset frequency, the fourth temperature rise threshold and the fourth preset current range. After step S240, it jumps to step S340.

And S250, determining the outdoor temperature is less than the third preset temperature, and the outdoor wind speed is less than the preset wind speed as a fifth preset time, a fifth preset frequency, a fifth temperature rise threshold and a fifth preset current range. After step S250, it jumps to step S350.

And S260, determining the outdoor temperature to be less than a third preset temperature, and determining the outdoor wind speed to be a sixth preset time, a sixth preset frequency, a sixth temperature rise threshold and a sixth preset current range if the outdoor wind speed is greater than or equal to the preset wind speed. After step S260, it jumps to step S360.

And S310, controlling the compressor to operate at a first preset frequency for a first preset time and acquiring an exhaust temperature rise value and a current value. After step S310, the process jumps to step S410.

And step S320, controlling the compressor to operate at a second preset frequency for a second preset time and acquiring an exhaust temperature rise value and a current value. After step S320, it jumps to step S420.

And step S330, controlling the compressor to operate at a third preset frequency for a third preset time and acquiring an exhaust temperature rise value and a current value. After step S330, the process jumps to step S430.

And step S340, controlling the compressor to operate at a fourth preset frequency for a fourth preset time and acquiring an exhaust temperature rise value and a current value. After step S340, it jumps to step S440.

And step S350, controlling the compressor to operate at a fifth preset frequency for a fifth preset time period, and acquiring an exhaust temperature rise value and a current value. After step S350, it jumps to step S450.

And step S360, controlling the compressor to operate at a sixth preset frequency for a sixth preset time period and acquiring an exhaust temperature rise value and a current value. After step S360, it jumps to step S460.

And S410, enabling the exhaust temperature rise value to be smaller than a first temperature rise threshold value and enabling the current value not to be in a first preset current range. If the condition in step S410 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S420, the exhaust temperature rise value is less than a second temperature rise threshold value, and the current value is not in a second preset current range. If the condition in step S420 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S430, the exhaust temperature rise value is less than a third temperature rise threshold value, and the current value is not in a third preset current range. If the condition in step S430 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S440, the exhaust temperature rise value is less than a fourth temperature rise threshold value, and the current value is not in a fourth preset current range. If the condition in step S440 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And S450, enabling the exhaust temperature rise value to be smaller than a fifth temperature rise threshold value and enabling the current value not to be in a fifth preset current range. If the condition in step S450 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S460, the exhaust temperature rise value is less than a sixth temperature rise threshold value, and the current value is not in a sixth preset current range. If the condition in step S460 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S510, sending an alarm and stopping the machine.

Wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to-2 ℃ and less than or equal to-2 ℃, the third preset temperature is more than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is less than or equal to 48Hz and less than or equal to 52Hz, the second preset frequency is less than or equal to 53Hz and less than or equal to 57Hz, the third preset frequency is less than or equal to 53Hz and less than or equal to 62Hz, the fourth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the sixth preset frequency is less than or equal to 67Hz, the first preset time is less than or equal to 23min for 17min and less than or equal to 33min, the third preset time is less than or equal to 33min, the fourth preset time is less than or equal to 37min and less than or equal to 43min, the fifth preset time is less than or equal to 38min, the temperature rise is less than or equal to 46 ℃ and less than or equal to 46 ℃, the fourth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, the fifth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold value is more than or equal to 34 ℃ and less than or equal to 36 ℃. For example, the first preset temperature is 10 ℃, the second preset temperature is 0 ℃, the third preset temperature is-10 ℃, the preset wind speed is 4m/s, the first preset frequency is 50Hz, the second preset frequency is 55Hz, the third preset frequency is 55Hz, the fourth preset frequency is 60Hz, the fifth preset frequency is 60Hz, the sixth preset frequency is 65Hz, the first preset time duration is 20min, the second preset time duration is 30min, the third preset time duration is 30min, the fourth preset time duration is 40min, the fifth preset time duration is 35min, the sixth preset time duration is 45min, the first temperature rise threshold is 50 ℃, the second temperature rise threshold is 45 ℃, the third temperature rise threshold is 45 ℃, the fourth temperature rise threshold is 40 ℃, the fifth temperature rise threshold is 40 ℃, and the sixth temperature rise threshold is 35 ℃.

Through the arrangement, the condition that the air conditioner judges whether the air conditioner lacks the refrigerant according to the preset fixed exhaust temperature in the refrigeration operation in winter and the selective alarm shutdown mode is influenced by low temperature to generate false alarm and false shutdown operation is avoided, whether the air conditioner lacks the refrigerant can be judged more accurately, so that the normal operation refrigeration of the air conditioner in winter is ensured under the condition of no refrigerant shortage, and a user can timely find the fault of the air conditioner and maintain the fault under the condition of refrigerant shortage. The operation time length and the operation frequency of the compressor of the air conditioner, and the corresponding temperature rise threshold value and the corresponding current range are determined according to the wind speed and the outdoor temperature, and the influence of the wind speed and the outdoor temperature on the temperature rise of the exhaust temperature is considered, so that whether the air conditioner lacks a refrigerant can be accurately judged. Through the setting of the corresponding preset frequency and the preset time, whether the air conditioner at the detection position lacks a refrigerant can be ensured, and the problem of energy waste caused by overlong detection time and overhigh frequency can be solved. Whether the refrigerant is insufficient or not is judged simultaneously through the exhaust temperature and the current value, and whether the refrigerant is insufficient or not can be still judged under the condition that the outdoor temperature sensor breaks down.

It should be noted that the controller acquires the local weather information and then acquires the outdoor wind speed through the connected network is only a specific setting mode, and in practical application, the controller can be adjusted, for example, an anemoscope can be set at the outdoor part of the air conditioner, and the anemoscope is connected with the controller of the air conditioner, so that the controller can acquire the outdoor wind speed through the anemoscope. In step S510, only an alarm may be issued or only the system may be stopped. In addition, the first preset current range, the second preset current range, the third preset current range, the fourth preset current range, the fifth preset current range and the sixth preset current range of the air conditioners with different specifications are different, and may be limited according to actual conditions, and are not specifically limited herein.

A control method of an air conditioner according to a second embodiment of the present invention will be described with reference to fig. 3 and 4. Fig. 3 is a main step diagram of a control method of an air conditioner according to a second embodiment of the present invention, and fig. 4 is a flowchart of the control method of the air conditioner according to the second embodiment of the present invention.

In a second embodiment of the present invention, the air conditioner of the present invention is configured to be able to acquire an outdoor wind speed, for example, the air conditioner is an air conditioner capable of connecting to a network. As shown in fig. 3, the control method of the air conditioner of the present invention mainly comprises the following steps:

And S200, determining the running time, the running frequency and the corresponding temperature rise threshold of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature.

And step S300, controlling the compressor to operate for the determined operation time at the determined operation frequency and acquiring a discharge temperature rise value of the compressor.

And S400, judging whether the exhaust temperature rise value is smaller than a temperature rise threshold value.

And S500, if the exhaust temperature rise value is smaller than the temperature rise threshold value, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally run.

Specifically, as shown in fig. 4, the control method of the air conditioner of the present invention includes the steps of:

And S210, determining the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature, and determining the outdoor wind speed and the first preset wind speed as a first preset time, a first preset frequency and a first temperature rise threshold. After step S210, the process jumps to step S310.

And S220, determining the second preset time length, the second preset frequency and the second temperature rise threshold value if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is greater than or equal to the preset wind speed. After step S220, it jumps to step S320.

And step S230, if the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature and the outdoor wind speed is less than the preset wind speed, determining the third preset time, the third preset frequency and the third temperature rise threshold. After step S230, it jumps to step S330.

And S240, determining that the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and the outdoor wind speed is greater than or equal to the preset wind speed as a fourth preset time, a fourth preset frequency and a fourth temperature rise threshold. After step S240, it jumps to step S340.

And S250, determining the outdoor temperature is less than the third preset temperature, and the outdoor wind speed is less than the preset wind speed as a fifth preset time, a fifth preset frequency and a fifth temperature rise threshold. After step S250, it jumps to step S350.

And S260, determining the outdoor temperature to be less than a third preset temperature, and determining the outdoor wind speed to be more than or equal to a preset wind speed as a sixth preset time, a sixth preset frequency and a sixth temperature rise threshold. After step S260, it jumps to step S360.

Step S310, the compressor is controlled to operate at a first preset frequency for a first preset time and an exhaust temperature rise value is obtained. After step S310, the process jumps to step S410.

And step S320, controlling the compressor to operate at a second preset frequency for a second preset time and acquiring an exhaust temperature rise value. After step S320, it jumps to step S420.

And step S330, controlling the compressor to operate at a third preset frequency for a third preset time and acquiring an exhaust temperature rise value. After step S330, the process jumps to step S430.

And step S340, controlling the compressor to operate at a fourth preset frequency for a fourth preset time and acquiring an exhaust temperature rise value. After step S340, it jumps to step S440.

And step S350, controlling the compressor to operate at a fifth preset frequency for a fifth preset time and acquiring an exhaust temperature rise value. After step S350, it jumps to step S450.

And step S360, controlling the compressor to operate at a sixth preset frequency for a sixth preset time and acquiring an exhaust temperature rise value. After step S360, it jumps to step S460.

And S410, enabling the exhaust temperature rise value to be smaller than a first temperature rise threshold value. If the condition in step S410 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S420, the exhaust temperature rise value is less than a second temperature rise threshold value. If the condition in step S420 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S430, the exhaust temperature rise value is less than a third temperature rise threshold value. If the condition in step S430 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S440, the exhaust temperature rise value is less than a fourth temperature rise threshold value. If the condition in step S440 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And S450, enabling the exhaust temperature rise value to be smaller than a fifth temperature rise threshold value. If the condition in step S450 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S460, the exhaust temperature rise value is less than a sixth temperature rise threshold value. If the condition in step S460 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S510, sending an alarm and stopping the machine.

Wherein the first preset temperature is more than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is more than or equal to-2 ℃ and less than or equal to-2 ℃, the third preset temperature is more than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is more than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is less than or equal to 48Hz and less than or equal to 52Hz, the second preset frequency is less than or equal to 53Hz and less than or equal to 57Hz, the third preset frequency is less than or equal to 53Hz and less than or equal to 62Hz, the fourth preset frequency is less than or equal to 58Hz and less than or equal to 62Hz, the sixth preset frequency is less than or equal to 67Hz, the first preset time is less than or equal to 23min for 17min and less than or equal to 33min, the third preset time is less than or equal to 33min, the fourth preset time is less than or equal to 37min and less than or equal to 43min, the fifth preset time is less than or equal to 38min, the temperature rise is less than or equal to 46 ℃ and less than or equal to 46 ℃, the fourth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, the fifth temperature rise threshold value is more than or equal to 39 ℃ and less than or equal to 41 ℃, and the sixth temperature rise threshold value is more than or equal to 34 ℃ and less than or equal to 36 ℃.

Through the arrangement, the condition that the air conditioner is influenced by low temperature to generate false alarm and false shutdown operation in the mode that the air conditioner judges whether the air conditioner lacks the refrigerant according to the preset fixed exhaust temperature during the refrigeration operation in winter can be avoided, whether the air conditioner lacks the refrigerant can be judged more accurately, so that the normal operation refrigeration of the air conditioner in winter can be ensured under the condition that the refrigerant is not lacked, and a user can timely find the fault of the air conditioner and maintain the fault under the condition that the refrigerant is lacked.

A control method of an air conditioner according to a third embodiment of the present invention will be described with reference to fig. 5 and 6. Fig. 5 is a main step diagram of a control method of an air conditioner according to a third embodiment of the present invention, and fig. 6 is a flowchart of the control method of the air conditioner according to the third embodiment of the present invention.

In a third embodiment of the present invention, the air conditioner of the present invention is configured to be able to acquire an outdoor wind speed, for example, the air conditioner is an air conditioner capable of connecting to a network. As shown in fig. 5, the control method of the air conditioner of the present invention mainly comprises the following steps:

And S200, determining the running time, the running frequency and the corresponding current range of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature.

And step S300, controlling the compressor to operate at the determined operation frequency for the determined operation time and acquiring the current value of the compressor.

And step S400, judging whether the current value is in the current range.

And step S500, if the current value is not in the current range, giving an alarm and/or stopping the air conditioner, otherwise, controlling the air conditioner to normally operate.

Specifically, as shown in fig. 6, the control method of the air conditioner of the present invention includes the steps of:

And S210, determining the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature, and determining the outdoor wind speed and the first preset wind speed as a first preset time, a first preset frequency and a first preset current range. After step S210, the process jumps to step S310.

And S220, determining the second preset time length, the second preset frequency and the second preset current range if the second preset temperature is less than or equal to the outdoor temperature and less than the first preset temperature and the outdoor wind speed is greater than or equal to the preset wind speed. After step S220, it jumps to step S320.

And step S230, if the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature and the outdoor wind speed is less than the preset wind speed, determining the third preset time, the third preset frequency and the third preset current range. After step S230, it jumps to step S330.

And S240, determining the third preset temperature is less than or equal to the outdoor temperature and less than the second preset temperature, and determining the outdoor wind speed is greater than or equal to the preset wind speed as a fourth preset time, a fourth preset frequency and a fourth preset current range. After step S240, it jumps to step S340.

And S250, determining the outdoor temperature is less than the third preset temperature, and the outdoor wind speed is less than the preset wind speed as a fifth preset time, a fifth preset frequency and a fifth preset current range. After step S250, it jumps to step S350.

And S260, determining the outdoor temperature to be less than a third preset temperature, and determining the outdoor wind speed to be a sixth preset time, a sixth preset frequency and a sixth preset current range if the outdoor wind speed is greater than or equal to the preset wind speed. After step S260, it jumps to step S360.

Step S310, the compressor is controlled to operate at a first preset frequency for a first preset time and a current value is obtained. After step S310, the process jumps to step S410.

And step S320, controlling the compressor to operate at a second preset frequency for a second preset time and acquiring a current value. After step S320, it jumps to step S420.

And step S330, controlling the compressor to operate at a third preset frequency for a third preset time and acquiring a current value. After step S330, the process jumps to step S430.

And step S340, controlling the compressor to operate at a fourth preset frequency for a fourth preset time and acquiring a current value. After step S340, it jumps to step S440.

And step S350, controlling the compressor to operate at a fifth preset frequency for a fifth preset time and acquiring a current value. After step S350, it jumps to step S450.

And step S360, controlling the compressor to operate at a sixth preset frequency for a sixth preset time and acquiring a current value. After step S360, it jumps to step S460.

In step S410, the current value is not in the first preset current range. If the condition in step S410 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

In step S420, the current value is not in the second preset current range. If the condition in step S420 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

In step S430, the current value is not in the third preset current range. If the condition in step S430 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

In step S440, the current value is not in the fourth preset current range. If the condition in step S440 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

In step S450, the current value is not in the fifth preset current range. If the condition in step S450 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

In step S460, the current value is not in the sixth preset current range. If the condition in step S460 is satisfied, the process jumps to step S510, otherwise, the air conditioner is controlled to operate normally (not shown).

And step S510, sending an alarm and stopping the machine.

The first preset temperature is greater than or equal to 5 ℃ and less than or equal to 15 ℃, the second preset temperature is greater than or equal to-2 ℃ and less than or equal to 2 ℃, the third preset temperature is greater than or equal to-12 ℃ and less than or equal to-8 ℃, the preset wind speed is greater than or equal to 3.4m/s and less than or equal to 5.4m/s, the first preset frequency is greater than or equal to 48Hz and less than or equal to 52Hz, the second preset frequency is greater than or equal to 53Hz and less than or equal to 57Hz, the third preset frequency is greater than or equal to 53Hz and less than or equal to 62Hz, the fourth preset frequency is greater than or equal to 58Hz and less than or equal to 62Hz, the sixth preset frequency is greater than or equal to 67Hz and less than or equal to 63Hz, the first preset time is greater than or equal to 23min, the second preset time is greater than or equal to 27min and less than or equal to 33min, the third preset time is greater than or equal to 33min, the fourth preset time is greater than or equal to 37min and less than or equal to 43min, the fifth preset time is greater than or equal to 38min and less than or equal to 42min, and less than or equal to 42min and less than or equal to 48 min.

In another aspect, the present invention also provides an air conditioner, including: the air conditioner control device comprises a memory, a processor and a computer program, wherein the computer program is stored in the memory and is configured to be executed by the processor to realize the control method of the air conditioner of any one embodiment. The memory and the processor are arranged on the controller. When it is required to be described, the air conditioner may be an integrated air conditioner, a split air conditioner, a single-cooling air conditioner, a dual-purpose air conditioner, or other suitable air conditioners.

It should be noted that the memory in the above embodiments includes, but is not limited to, a random access memory, a flash memory, a read only memory, a programmable read only memory, a volatile memory, a non-volatile memory, a serial memory, a parallel memory, or a register, and the like, and the processor includes, but is not limited to, a CPLD/FPGA, a DSP, an ARM processor, a MIPS processor, and the like.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims

1. A control method of an air conditioner, wherein the air conditioner is set to be able to acquire an outdoor wind speed, the control method comprising:

2. The control method according to claim 1, wherein the step of determining an operation time period, an operation frequency and corresponding temperature rise threshold and current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature comprises:

3. The control method according to claim 1, wherein the step of determining an operation time period, an operation frequency and corresponding temperature rise threshold and current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature comprises:

4. The control method according to claim 1, wherein the step of determining an operation time period, an operation frequency and corresponding temperature rise threshold and current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature comprises:

5. The control method according to any one of claims 1 to 4, wherein the air conditioner is a network-connectable air conditioner, and the step of "acquiring the outdoor wind speed" specifically includes:

and acquiring the outdoor wind speed through a network.

6. A control method of an air conditioner, wherein the air conditioner is set to be able to acquire an outdoor wind speed, the control method comprising:

7. The control method according to claim 6, wherein the step of determining the operation time length, the operation frequency and the corresponding temperature rise threshold value of the compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature comprises:

and/or

8. A control method of an air conditioner, wherein the air conditioner is set to be able to acquire an outdoor wind speed, the control method comprising:

judging whether the current value is in the current range or not;

9. The control method according to claim 8, wherein the step of determining an operation time period, an operation frequency and a corresponding current range of a compressor of the air conditioner according to the outdoor wind speed and the outdoor temperature comprises:

and/or

10. An air conditioner, comprising:

a memory;

a processor; and

a computer program stored in the memory and configured to be executed by the processor to implement the control method of the air conditioner of any one of claims 1 to 9.