阅读说明：本技术 空调器自清洁方法 (Self-cleaning method for air conditioner ) 是由 朱磊 邹海如 李林 张罡 于 2021-09-28 设计创作，主要内容包括：本发明公开了一种空调器自清洁方法,所述空调器自清洁方法包括：开启自清洁模式；控制压缩机制冷运行；检测室内换热器温度Tc,根据所述室内换热器温度Tc控制室内风机的启停和制冷剂流量,以使所述室内换热器结霜；控制所述压缩机制热运行,以使所述室内换热器化霜而清洗所述室内换热器；控制所述室内风机运行。根据本发明实施例的空调器自清洁方法,具有清洁效率高、清洁范围大等优点。(The invention discloses a self-cleaning method of an air conditioner, which comprises the following steps: starting a self-cleaning mode; controlling the compressor to perform cooling operation; detecting the temperature Tc of an indoor heat exchanger, and controlling the starting and stopping of an indoor fan and the flow of a refrigerant according to the temperature Tc of the indoor heat exchanger so as to frost the indoor heat exchanger; controlling the compressor to perform heating operation so as to defrost the indoor heat exchanger and clean the indoor heat exchanger; and controlling the indoor fan to operate. The self-cleaning method of the air conditioner, provided by the embodiment of the invention, has the advantages of high cleaning efficiency, large cleaning range and the like.)

1. A self-cleaning method of an air conditioner is characterized by comprising the following steps:

starting a self-cleaning mode;

controlling the compressor to perform cooling operation;

detecting the temperature Tc of an indoor heat exchanger, and controlling the starting and stopping of an indoor fan and the flow of a refrigerant according to the temperature Tc of the indoor heat exchanger so as to frost the indoor heat exchanger;

controlling the compressor to perform heating operation so as to defrost the indoor heat exchanger and clean the indoor heat exchanger;

and controlling the indoor fan to operate.

2. The self-cleaning method of claim 1, wherein controlling the start and stop of the indoor fan and the flow rate of the refrigerant according to the temperature Tc of the indoor heat exchanger comprises:

judging whether the temperature Tc of the indoor heat exchanger is less than a first preset low temperature or not;

if so, controlling the indoor fan to operate at the lowest wind speed;

if not, by decreasing the opening degree of the electronic expansion valve to decrease the refrigerant flow.

3. The self-cleaning method of an air conditioner as claimed in claim 2, wherein if the indoor heat exchanger temperature Tc is less than the first preset low temperature, the indoor fan operates at the lowest wind speed for a first preset time and then senses the indoor heat exchanger temperature Tc again,

judging whether the temperature Tc of the indoor heat exchanger is less than a second preset low temperature or not;

and otherwise, reducing the opening degree of the electronic expansion valve to reduce the refrigerant flow.

4. The self-cleaning method of claim 3, wherein after the opening degree of the electronic expansion valve is decreased, determining whether the opening degree of the electronic expansion valve is minimum;

if so, keeping the current state of the air conditioner to continuously operate for a second preset time.

5. A self-cleaning method for an air conditioner according to claim 1, wherein the compressor is controlled to perform a cooling operation at a maximum frequency for a third preset time before the temperature Tc of the indoor heat exchanger is detected.

6. An air conditioner self-cleaning method as claimed in claim 1, wherein said controlling said compressor heating operation comprises:

detecting heating running time, indoor environment temperature T1 and indoor heat exchanger temperature Tc;

and controlling the start and stop of the compressor, the opening degree of an electronic expansion valve and the start and stop of the indoor fan according to the heating running time, the indoor environment temperature T1 and the indoor heat exchanger temperature Tc so as to defrost the indoor heat exchanger and clean the indoor heat exchanger.

7. The self-cleaning method of claim 6, wherein controlling the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc comprises:

judging whether the indoor environment temperature T1 is greater than a preset indoor temperature;

if so, controlling the indoor fan to operate at the lowest wind speed;

if not, controlling the indoor fan and the compressor to stop running, and controlling the opening degree of the electronic expansion valve to be adjusted to the maximum.

8. The self-cleaning method of claim 7, wherein the controlling of the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further comprises:

controlling the compressor to stop operating for a fourth preset time, and then controlling the compressor to perform heating operation and controlling the indoor fan to operate at the lowest wind speed;

detecting the indoor heat exchanger temperature Tc;

judging whether the temperature Tc of the indoor heat exchanger is greater than a first preset high temperature or not;

and otherwise, reducing the opening degree of the electronic expansion valve.

9. The self-cleaning method of an air conditioner as claimed in claim 8, wherein the controlling of the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further comprises:

after the opening degree of the electronic expansion valve is reduced, judging whether the opening degree of the electronic expansion valve is minimum or not;

if so, judging whether the heating running time of the compressor reaches a fifth preset time or judging whether the temperature Tc of the indoor heat exchanger reaches a first preset high temperature;

and if so, controlling the compressor to stop running.

10. The self-cleaning method of claim 7, wherein the controlling of the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further comprises:

controlling the indoor fan to operate at the lowest wind speed, and detecting the temperature Tc of the indoor heat exchanger;

judging whether the temperature Tc of the indoor heat exchanger is not less than a second preset high temperature or judging whether the heating time of the compressor reaches a sixth preset time;

and if so, controlling the compressor to stop running.

Technical Field

The invention relates to the technical field of air conditioners, in particular to a self-cleaning method of an air conditioner.

Background

In the air conditioner in the related art, the dirt on the fins of the indoor heat exchanger is removed in a manner of frosting, defrosting, cleaning and drying condensed water of the indoor heat exchanger, but air circulation is not available, only moisture around the heat exchanger can be frozen, the frosted moisture content is too low, the range of the frozen heat exchanger is too small, a large cleaning area cannot be covered, and the self-cleaning effect of the air conditioner is poor.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a self-cleaning method for an air conditioner, which has the advantages of high cleaning efficiency, wide cleaning range, etc.

In order to achieve the above object, an embodiment of the present invention provides an air conditioner self-cleaning method, including: starting a self-cleaning mode; controlling the compressor to perform cooling operation; detecting the temperature Tc of an indoor heat exchanger, and controlling the starting and stopping of an indoor fan and the flow of a refrigerant according to the temperature Tc of the indoor heat exchanger so as to frost the indoor heat exchanger; controlling the compressor to perform heating operation so as to defrost the indoor heat exchanger and clean the indoor heat exchanger; and controlling the indoor fan to operate.

The self-cleaning method of the air conditioner, provided by the embodiment of the invention, has the advantages of high cleaning efficiency, large cleaning range and the like.

According to some embodiments of the present invention, controlling the start and stop of the indoor fan and the refrigerant flow rate according to the indoor heat exchanger temperature Tc includes: judging whether the temperature Tc of the indoor heat exchanger is less than a first preset low temperature or not; if so, controlling the indoor fan to operate at the lowest wind speed; if not, by decreasing the opening degree of the electronic expansion valve to decrease the refrigerant flow.

Further, if the temperature Tc of the indoor heat exchanger is less than the first preset low temperature, the temperature Tc of the indoor heat exchanger is detected again after the indoor fan operates at the lowest wind speed for a first preset time, and whether the temperature Tc of the indoor heat exchanger is less than a second preset low temperature is judged; and otherwise, reducing the opening degree of the electronic expansion valve to reduce the refrigerant flow.

Further, after the opening degree of the electronic expansion valve is reduced, whether the opening degree of the electronic expansion valve is the minimum or not is judged; if so, keeping the current state of the air conditioner to continuously operate for a second preset time.

According to some embodiments of the present invention, before the temperature Tc of the indoor heat exchanger is detected, the compressor is controlled to perform a cooling operation at the maximum frequency for a third preset time.

According to some specific embodiments of the present invention, the controlling the compressor heating operation includes: detecting heating running time, indoor environment temperature T1 and indoor heat exchanger temperature Tc; and controlling the start and stop of the compressor, the opening degree of an electronic expansion valve and the start and stop of the indoor fan according to the heating running time, the indoor environment temperature T1 and the indoor heat exchanger temperature Tc so as to defrost the indoor heat exchanger and clean the indoor heat exchanger.

Further, controlling the start and stop of the compressor according to the heating running time, the indoor environment temperature T1 and the indoor heat exchanger temperature Tc includes: judging whether the indoor environment temperature T1 is greater than a preset indoor temperature; if so, controlling the indoor fan to operate at the lowest wind speed; if not, controlling the indoor fan and the compressor to stop running, and controlling the opening degree of the electronic expansion valve to be adjusted to the maximum.

Further, controlling the start and stop of the compressor according to the heating running time, the indoor environment temperature T1 and the indoor heat exchanger temperature Tc, further comprising: controlling the compressor to stop operating for a fourth preset time, and then controlling the compressor to perform heating operation and controlling the indoor fan to operate at the lowest wind speed; detecting the indoor heat exchanger temperature Tc; judging whether the temperature Tc of the indoor heat exchanger is greater than a first preset high temperature or not; and otherwise, reducing the opening degree of the electronic expansion valve.

According to some specific embodiments of the present invention, the controlling the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further includes: after the opening degree of the electronic expansion valve is reduced, judging whether the opening degree of the electronic expansion valve is minimum or not; if so, judging whether the heating running time of the compressor reaches a fifth preset time or judging whether the temperature Tc of the indoor heat exchanger reaches a first preset high temperature; and if so, controlling the compressor to stop running.

According to some specific embodiments of the present invention, the controlling the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further includes: controlling the indoor fan to operate at the lowest wind speed, and detecting the temperature Tc of the indoor heat exchanger; judging whether the temperature Tc of the indoor heat exchanger is not less than a second preset high temperature or judging whether the heating time of the compressor reaches a sixth preset time; and if so, controlling the compressor to stop running.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a flow chart of a first part of a self-cleaning method of an air conditioner according to an embodiment of the present invention;

fig. 2 is a flowchart of a second part of a self-cleaning method of an air conditioner according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The self-cleaning method of the air conditioner according to the embodiment of the present invention will be described with reference to the following.

As shown in fig. 1 and 2, a self-cleaning method of an air conditioner according to an embodiment of the present invention includes:

starting a self-cleaning mode;

controlling the compressor to perform cooling operation;

detecting the temperature Tc of the indoor heat exchanger, and controlling the starting and stopping of an indoor fan and the flow of a refrigerant according to the temperature Tc of the indoor heat exchanger so as to frost the indoor heat exchanger;

controlling the heating operation of the compressor so as to defrost the indoor heat exchanger and clean the indoor heat exchanger;

and controlling the indoor fan to operate.

For example, a compressor, a four-way valve, an indoor heat exchanger and an electronic expansion valve are sequentially connected to form a refrigerant loop, the flow of the refrigerant is controlled by controlling the opening degree of the electronic expansion valve, the opening degree of the expansion valve is small, the evaporation temperature is reduced, the low-pressure is also reduced, and the indoor heat exchanger is easier to frost. The temperature of the indoor heat exchanger is measured by a temperature sensor, and the measured temperature is the temperature of the coil pipe of the indoor heat exchanger. The indoor fan may direct an indoor airflow to the indoor heat exchanger.

According to the air conditioner self-cleaning method provided by the embodiment of the invention, the indoor fan can be stopped to operate when the temperature Tc of the indoor heat exchanger is higher by controlling the start and stop of the indoor fan, so that the indoor heat exchanger is rapidly cooled, the indoor fan is turned on when the temperature Tc of the indoor heat exchanger reaches a sufficiently low temperature, and the indoor gas is conveyed to the indoor heat exchanger. And when the flow of the refrigerant is controlled to be reduced, the opening degree of the electronic expansion valve is controlled to be reduced, so that the flow of the refrigerant is reduced, the evaporation temperature is reduced, the frosting of the indoor heat exchanger is further promoted, and the self-cleaning efficiency of the air conditioner is improved.

When the indoor heat exchanger frosts, stains on fins of the indoor heat exchanger are peeled off by frost, and indoor water vapor is guided to the indoor heat exchanger by the indoor fan, so that large-area frosting of the indoor heat exchanger can be realized, and the stains on the fins are washed by defrosting the indoor heat exchanger to achieve a large cleaning area. After the stains are washed, the heat of the indoor heat exchanger can continuously evaporate the water on the fins, so that the surface of the indoor heat exchanger is dried. And after the indoor heat exchanger is cleaned and dried, floating dust on the surface of the indoor heat exchanger can be blown away after the indoor fan is controlled to operate for 30 minutes, the temperature of the indoor heat exchanger is rapidly reduced, and the self-cleaning of the air conditioner is completed.

Therefore, the self-cleaning method of the air conditioner provided by the embodiment of the invention has the advantages of high cleaning efficiency, large cleaning range and the like.

In some embodiments of the present invention, as shown in fig. 1, the controlling of the start and stop of the indoor fan and the refrigerant flow rate according to the indoor heat exchanger temperature Tc includes:

judging whether the temperature Tc of the indoor heat exchanger is less than a first preset low temperature, wherein the first preset low temperature can be-10 ℃ for example;

if so, controlling the indoor fan to operate at the lowest wind speed;

if not, by decreasing the opening degree of the electronic expansion valve to decrease the refrigerant flow.

When the temperature Tc of the indoor heat exchanger is lower than the first preset low temperature, the indoor fan is controlled to operate at the lowest wind speed, so that the indoor air can be accelerated to convey water vapor to the indoor heat exchanger, the water vapor content at the indoor heat exchanger is increased, the temperature is lower, and the indoor heat exchanger is easier to frost.

When the temperature Tc of the indoor heat exchanger is not less than the first preset low temperature, the temperature of the indoor heat exchanger needs to be reduced firstly, and at the moment, the indoor fan is turned off, so that the cooling rate of the indoor heat exchanger can be increased. And the opening degree of the electronic expansion valve is reduced, the flow of the refrigerant is reduced, and the cooling rate of the indoor heat exchanger is further accelerated, so that the frosting of the indoor heat exchanger is more sufficient.

Further, as shown in fig. 1, if the temperature Tc of the indoor heat exchanger is less than the first preset low temperature, after the indoor fan operates at the lowest wind speed for the first preset time, the temperature Tc of the indoor heat exchanger is detected again,

judging whether the temperature Tc of the indoor heat exchanger is lower than a second preset low temperature, wherein the second preset low temperature can be-8 ℃ for example;

if not, the opening degree of the electronic expansion valve is reduced to reduce the refrigerant flow rate.

For example, the first predetermined time may be 1 minute. When the temperature Tc of the indoor heat exchanger is smaller than the first preset low temperature, the change of the temperature Tc of the indoor coil pipe within the first preset time can be detected in real time, the temperature Tc of the indoor heat exchanger is judged to be lower than the second preset low temperature, the indoor fan is continuously kept to operate at the lowest wind speed, and the temperature Tc of the indoor heat exchanger is detected again after the first preset time until the temperature Tc of the indoor heat exchanger is larger than or equal to the second preset low temperature.

When the indoor loop temperature is not less than the second preset low temperature, the opening degree of the electronic expansion valve is reduced to reduce the flow of the refrigerant, so that the flow of the refrigerant is reduced, the evaporation temperature is reduced, and the frosting of the indoor heat exchanger is promoted.

Further, as shown in fig. 1, after the opening degree of the electronic expansion valve is decreased, it is determined whether the opening degree of the electronic expansion valve is the minimum;

if so, the current state of the air conditioner is maintained for a second preset time, for example, the second preset time may be 25 minutes.

When the opening degree of the electronic expansion valve is minimum, the evaporation temperature is minimum, the indoor heat exchanger frosts most easily, after the air conditioner keeps the current state for the second preset time, the indoor heat exchanger frosts sufficiently, the frosting of the indoor heat exchanger is completed, and at the moment, stains of the indoor heat exchanger are stripped from the surface of the indoor heat exchanger by frost, so that the air conditioner is convenient to further clean.

In some embodiments of the present invention, as shown in fig. 1, before the indoor heat exchanger temperature Tc is detected, the compressor is controlled to perform a cooling operation at the maximum frequency for a third preset time.

For example, the third preset time can be 7 minutes, the compressor is controlled to perform refrigerating operation at the maximum frequency within the third preset time, the temperature of the indoor heat exchanger can be rapidly reduced, the low temperature required by frosting can be rapidly achieved, the swinging angle of the indoor air deflector can be set to be an angle for preventing people from blowing, and indoor people are prevented from being directly blown by cold air.

In some embodiments of the present invention, as shown in fig. 2, the controlling of the heating operation of the compressor includes:

detecting heating running time, indoor environment temperature T1 and indoor heat exchanger temperature Tc;

and controlling the start and stop of the compressor, the opening degree of the electronic expansion valve and the start and stop of the indoor fan according to the heating running time, the indoor environment temperature T1 and the indoor heat exchanger temperature Tc so as to defrost the indoor heat exchanger and clean the indoor heat exchanger.

The indoor heat exchanger temperature Tc is different under different indoor ambient temperature T1 conditions. The heating defrosting of the indoor heat exchanger can be accurately controlled according to the indoor environment temperature T1, the corresponding heating running time and the indoor heat exchanger temperature Tc, the moisture of the indoor heat exchanger is evaporated while the indoor heat exchanger is fully defrosted, and the indoor heat exchanger is clean and dry.

Further, as shown in fig. 2, the start and stop of the compressor is controlled according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc, which includes:

judging whether the indoor environment temperature T1 is greater than a preset indoor temperature, for example, the preset indoor temperature may be 15 ℃;

if so, controlling the indoor fan to operate at the lowest wind speed;

if not, controlling the indoor fan and the compressor to stop running, and controlling the opening degree of the electronic expansion valve to be adjusted to the maximum.

When indoor ambient temperature T1 is greater than preset indoor temperature, indoor heat load is less this moment, and the control indoor fan moves with minimum wind speed, and the compressor heats the operation simultaneously, need not shutdown protection, has promoted defrosting efficiency.

When indoor ambient temperature T1 less than or equal to predetermine indoor temperature, indoor temperature was lower this moment, and the compressor just accomplished the refrigeration operation, and control indoor fan and compressor bring to rest, produce certain protection to the compressor to blow off the frost on indoor heat exchanger surface when preventing that the fan from blowing. The opening degree of the electronic expansion valve is controlled to be maximum, so that the indoor heat exchanger can be heated up most quickly, and frost can be melted quickly.

Further, as shown in fig. 2, controlling the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further includes:

controlling the compressor to stop running for a fourth preset time, and then controlling the compressor to heat and run and controlling the indoor fan to run at the lowest wind speed;

detecting the temperature Tc of the indoor heat exchanger;

judging whether the temperature Tc of the indoor heat exchanger is greater than a first preset high temperature or not;

if not, the opening degree of the electronic expansion valve is reduced.

For example, the fourth predetermined time is 3 minutes, and the first predetermined high temperature may be 50 ℃. And the compressor is heated and operated after the fourth preset time, so that the temperature of the indoor heat exchanger is increased, the indoor heat exchanger is quickly defrosted, and the purpose of flushing stains of the indoor heat exchanger is achieved. The indoor fan is controlled to operate at the lowest wind speed, so that the evaporation of moisture of the indoor heat exchanger can be accelerated, and meanwhile, the air deflector regulator of the air conditioner prevents the angle of blowing people, and high-temperature and high-humidity air flow is prevented from being conveyed indoors. When the temperature Tc of the indoor heat exchanger is judged to be less than or equal to the first preset high temperature, the opening degree of the electronic expansion valve is reduced, the temperature of the indoor heat exchanger is increased, defrosting of the indoor heat exchanger is promoted, and melting, washing and drying of the indoor heat exchanger are accelerated due to heating operation of the indoor heat exchanger.

Further, as shown in fig. 2, controlling the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further includes:

after the opening degree of the electronic expansion valve is reduced, judging whether the opening degree of the electronic expansion valve is minimum or not;

if so, judging whether the heating operation time of the compressor reaches a fifth preset time or judging whether the temperature Tc of the indoor heat exchanger reaches a first preset high temperature;

if so, the compressor is controlled to stop running.

For example, the fifth preset time may be 5 minutes, and when the opening degree of the electronic expansion valve is minimum, the melting and defrosting efficiency of the indoor heat exchanger may be ensured. When the heating time of the compressor reaches the fifth preset time or the temperature Tc of the indoor heat exchanger reaches the first preset high temperature, the heating of the indoor heat exchanger is enough to ensure the defrosting of the indoor heat exchanger, at the moment, the operation of the compressor is stopped, the defrosting of the indoor heat exchanger is completed, if the heating operation time of the compressor does not reach the fifth preset time and the temperature Tc of the indoor heat exchanger does not reach the first preset high temperature, the air conditioner continuously performs the heating operation until the heating operation time of the compressor reaches the fifth preset time or the temperature Tc of the indoor heat exchanger reaches one condition of the first preset high temperature, and the defrosting, the cleaning and the drying are completed.

In the continuous heating process of the indoor heat exchanger, if the opening degree of the electronic expansion valve is judged not to reach the minimum, whether the temperature Tc of the indoor heat exchanger reaches the first preset high temperature is continuously judged, and if the opening degree of the electronic expansion valve does not reach the minimum, the opening degree of the electronic expansion valve is reduced until the temperature Tc of the indoor heat exchanger reaches the first preset high temperature or the opening degree of the electronic expansion valve reaches the minimum, so that when the electronic expansion valve reaches the minimum opening degree, the heating effect on the indoor heat exchanger is the best, and the defrosting, cleaning and drying efficiencies are improved.

And when the electronic expansion valve reaches the minimum opening degree, judging whether the heating operation time of the compressor reaches the fifth preset time or not or judging whether the temperature Tc of the indoor heat exchanger reaches the first preset high temperature or not. The defrosting, cleaning and drying are ensured to be more thorough, and the overhigh temperature of the indoor heat exchanger is avoided.

In some embodiments of the present invention, as shown in fig. 2, the controlling the start and stop of the compressor according to the heating operation time, the indoor ambient temperature T1 and the indoor heat exchanger temperature Tc further includes:

controlling an indoor fan to operate at the lowest wind speed, and detecting the temperature Tc of an indoor heat exchanger;

judging whether the temperature Tc of the indoor heat exchanger is not less than a second preset high temperature or judging whether the heating time of the compressor reaches a sixth preset time, wherein the sixth preset time can be 1.5 minutes, for example;

if so, the compressor is controlled to stop running.

When the indoor environment temperature T1 is higher than the preset indoor high temperature, after the indoor fan is controlled to operate at the lowest wind speed, when the temperature Tc of the indoor heat exchanger is not lower than the second preset high temperature, or the heating time of the compressor reaches the sixth preset time, the heating of the indoor heat exchanger is enough to ensure that the indoor heat exchanger is defrosted, at the moment, the compressor is stopped to operate, the defrosting of the indoor heat exchanger is finished, if the heating operation time of the compressor does not reach the sixth preset time and the temperature Tc of the indoor heat exchanger does not reach the second preset high temperature, the air conditioner continuously performs the heating operation until the heating operation time of the compressor reaches the sixth preset time or the temperature Tc of the indoor heat exchanger reaches one of the second preset high temperatures, and defrosting cleaning and drying are finished.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The electronic expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the electronic expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.