CN111174374B

CN111174374B - Control method and device of air conditioner, storage medium and air conditioner

Info

Publication number: CN111174374B
Application number: CN202010010635.5A
Authority: CN
Inventors: 谭建明; 陈姣; 何振健; 梁博; 林金煌; 冯青龙; 戴志炜; 梁玉林; 彭裕辉; 刘雷明; 郑丹平
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-12-08
Anticipated expiration: 2040-01-06
Also published as: CN111174374A

Abstract

The invention discloses a control method and a control device of an air conditioner, a storage medium and the air conditioner, wherein the method comprises the following steps: determining first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting, and determining second temperature drop information of the enclosure structure temperature of the environment where the air conditioner is located before and after the current defrosting; and adjusting the next defrosting control mode of the air conditioner according to the first temperature drop information of the indoor environment temperature before and after the current defrosting and the second temperature drop information of the temperature of the enclosure structure before and after the current defrosting so as to dynamically adjust the defrosting control mode of the air conditioner. The scheme of the invention can solve the problem that the defrosting self-adaptability is poor when whether defrosting is started or not is judged according to the temperature of the outdoor heat exchanger or the difference value between the temperature of the outdoor heat exchanger and the outdoor environment temperature, and achieves the effect of improving the defrosting self-adaptability.

Description

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

Technical Field

The invention belongs to the technical field of air conditioners, and particularly relates to a control method and device of an air conditioner, a storage medium and the air conditioner, in particular to a control method and device of a dynamic air conditioner based on defrosting temperature drop, the storage medium and the air conditioner.

Background

When some heat pump air conditioners are operated for heating, when the temperature of the outdoor heat exchanger is lower than the dew point temperature of the humid air and the temperature of the outdoor heat exchanger is lower than 0 ℃, water vapor in the air is condensed into a frost layer on the surface of the outdoor heat exchanger. The frost layer will increase the thermal resistance of the outdoor heat exchanger, so that the heating amount is attenuated.

In order to secure heating performance, when the frost layer grows to a certain extent, it is necessary to defrost the outdoor heat exchanger. Some defrosting control methods determine whether the frost layer of the outdoor heat exchanger has reached a maximum limit value that affects heating performance, based on the temperature of the outdoor heat exchanger or a difference between the temperature of the outdoor heat exchanger and the outdoor ambient temperature, and thus determine whether to perform defrosting. However, in this defrosting control method, the thermal comfort state of the indoor environment is not considered, and the control strategy is not distinguished according to the current operating environment of the air conditioner, so that the defrosting adaptability is poor.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The present invention aims to solve the above-mentioned drawbacks, and provide a control method and device for an air conditioner, a storage medium, and an air conditioner, so as to solve the problem that the defrosting adaptability is poor when determining whether to perform defrosting according to the temperature of an outdoor heat exchanger or the difference between the temperature of the outdoor heat exchanger and the outdoor ambient temperature, and achieve the effect of improving the defrosting adaptability.

The invention provides a control method of an air conditioner, which comprises the following steps: determining first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting, and determining second temperature drop information of the enclosure structure temperature of the environment where the air conditioner is located before and after the current defrosting; and adjusting the next defrosting control mode of the air conditioner according to the first temperature drop information of the indoor environment temperature before and after the current defrosting and the second temperature drop information of the temperature of the enclosure structure before and after the current defrosting so as to dynamically adjust the defrosting control mode of the air conditioner.

Optionally, determining first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting includes: acquiring a defrosting front indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located before the current defrosting, and acquiring a defrosting rear indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located after the current defrosting; taking an absolute value of an indoor temperature difference value between the defrosting front indoor temperature value and the defrosting rear indoor temperature value as first temperature drop information of the indoor environment temperature before and after the current defrosting; or, the ratio of the absolute value of the indoor temperature difference between the defrosting front indoor temperature value and the defrosting rear indoor temperature value to the defrosting time of the current defrosting is used as the first temperature drop information of the indoor environment temperature before and after the current defrosting.

Optionally, determining second temperature drop information of the temperature of the enclosure of the environment where the air conditioner is located before and after the current defrosting includes: the method comprises the steps that through a temperature detection module, an envelope temperature value before defrosting of the envelope temperature of the environment where the air conditioner is located before the current defrosting is obtained, and a post-defrosting envelope temperature value after the current defrosting of the envelope temperature of the environment where the air conditioner is located is obtained; and taking the absolute value of the difference value of the enclosure structure temperature between the defrosting front enclosure structure temperature value and the defrosting back enclosure structure temperature value as second temperature drop information of the enclosure structure temperature before and after the current defrosting.

Optionally, adjusting a defrosting control mode of a next defrosting of the air conditioner includes: if the first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, the first set time is prolonged for the set heating operation period from the current defrosting to the next defrosting; if first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of a first temperature range, and second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of a second temperature range and smaller than the upper limit of the second temperature range, prolonging a set heating operation period from the time after the current defrosting to the time before the next defrosting by a second set time; wherein the second set time is less than the first set time; if the first temperature drop information of the indoor environment temperature before and after the current defrosting is less than the lower limit of the first temperature range and the second temperature drop information of the enclosure temperature before and after the current defrosting is more than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, or if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, keeping the set heating operation period from the current defrosting to the next defrosting unchanged; if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, the set heating operation period from the time after the current defrosting to the time before the next defrosting is shortened by a third set time, and the operation frequency of a compressor of the air conditioner is increased and maintained for the first set time before the next defrosting; wherein the third setting time is less than the first setting time; if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, shortening the heating operation period from the time after the current defrosting to the time before the next defrosting by a fourth set time, increasing the operation frequency of a compressor of the air conditioner before the next defrosting, and maintaining the second set time; and the fourth set time is greater than the third set time.

In accordance with the above method, another aspect of the present invention provides a control apparatus for an air conditioner, comprising: the determining unit is used for determining first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting, and determining second temperature drop information of the envelope structure temperature of the environment where the air conditioner is located before and after the current defrosting; and the control unit is used for adjusting the next defrosting control mode of the air conditioner according to the first temperature drop information of the indoor environment temperature before and after the current defrosting and the second temperature drop information of the temperature of the enclosure structure before and after the current defrosting so as to dynamically adjust the defrosting control mode of the air conditioner.

Optionally, the determining unit determines first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting, including: acquiring a defrosting front indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located before the current defrosting, and acquiring a defrosting rear indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located after the current defrosting; taking an absolute value of an indoor temperature difference value between the defrosting front indoor temperature value and the defrosting rear indoor temperature value as first temperature drop information of the indoor environment temperature before and after the current defrosting; or, the ratio of the absolute value of the indoor temperature difference between the defrosting front indoor temperature value and the defrosting rear indoor temperature value to the defrosting time of the current defrosting is used as the first temperature drop information of the indoor environment temperature before and after the current defrosting.

Optionally, the determining unit determines second temperature drop information of the temperature of the enclosure of the environment where the air conditioner is located before and after the current defrosting, where the second temperature drop information includes: the method comprises the steps that through a temperature detection module, an envelope temperature value before defrosting of the envelope temperature of the environment where the air conditioner is located before the current defrosting is obtained, and a post-defrosting envelope temperature value after the current defrosting of the envelope temperature of the environment where the air conditioner is located is obtained; and taking the absolute value of the difference value of the enclosure structure temperature between the defrosting front enclosure structure temperature value and the defrosting back enclosure structure temperature value as second temperature drop information of the enclosure structure temperature before and after the current defrosting.

Optionally, the adjusting the next defrosting control mode of the air conditioner by the control unit includes: if the first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, the first set time is prolonged for the set heating operation period from the current defrosting to the next defrosting; if first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of a first temperature range, and second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of a second temperature range and smaller than the upper limit of the second temperature range, prolonging a set heating operation period from the time after the current defrosting to the time before the next defrosting by a second set time; wherein the second set time is less than the first set time; if the first temperature drop information of the indoor environment temperature before and after the current defrosting is less than the lower limit of the first temperature range and the second temperature drop information of the enclosure temperature before and after the current defrosting is more than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, or if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, keeping the set heating operation period from the current defrosting to the next defrosting unchanged; if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, the set heating operation period from the time after the current defrosting to the time before the next defrosting is shortened by a third set time, and the operation frequency of a compressor of the air conditioner is increased and maintained for the first set time before the next defrosting; wherein the third setting time is less than the first setting time; if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, shortening the heating operation period from the time after the current defrosting to the time before the next defrosting by a fourth set time, increasing the operation frequency of a compressor of the air conditioner before the next defrosting, and maintaining the second set time; and the fourth set time is greater than the third set time.

In accordance with another aspect of the present invention, there is provided an air conditioner including: the control device of the air conditioner described above.

In accordance with the above method, a further aspect of the present invention provides a storage medium comprising: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the control method of the air conditioner by the processor.

In accordance with the above method, another aspect of the present invention provides an air conditioner, comprising: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; the plurality of instructions are stored by the memory, and are loaded and executed by the processor.

According to the scheme of the invention, the condition of entering defrosting is dynamically adjusted by combining the thermal environment of the current air conditioner, the adaptability of defrosting is improved, the purposes of timely defrosting and accurate defrosting are achieved, and the indoor comfort level can be improved.

Furthermore, according to the scheme of the invention, the control method of the air conditioner is adjusted according to the heat environment where the current air conditioner is combined, so that the condition for entering defrosting is dynamically adjusted, and the adaptability of the air conditioner to different use environments can be improved.

Furthermore, according to the scheme of the invention, the problems of single defrosting control strategy and poor defrosting self-adaptability during heating operation of the heat pump air conditioner can be solved by dynamically adjusting the defrosting parameter judgment and the defrosting control process, and the defrosting thermal comfort is improved.

Furthermore, according to the scheme of the invention, the indoor temperature drop and the building enclosure temperature drop during the last defrosting are memorized, and the indoor temperature drop rate and the building enclosure temperature drop during the defrosting are compared with the preset values, so that the defrosting parameter judgment and defrosting control process can be dynamically adjusted, and the defrosting adaptability can be improved.

Furthermore, according to the scheme of the invention, the indoor temperature drop and the building enclosure temperature drop during the last defrosting are memorized, and the indoor temperature drop rate and the building enclosure temperature drop during the defrosting are compared with preset values, so that the parameter judgment and defrosting control process of the next defrosting is dynamically adjusted, and the defrosting adaptability and the defrosting thermal comfort are improved.

Therefore, according to the scheme of the invention, the condition of entering defrosting is dynamically adjusted by combining the thermal environment of the current air conditioner, the adaptability of defrosting is improved, the purposes of timely defrosting and accurate defrosting are achieved, the indoor comfort level can be improved, the problem that whether defrosting is entered or not is judged according to the temperature of the outdoor heat exchanger or the difference value of the temperature of the outdoor heat exchanger and the temperature of the outdoor environment, the adaptability of defrosting is poor is solved, and the effect of improving the adaptability of defrosting is achieved.

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

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

Fig. 1 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating an embodiment of determining first temperature drop information of an indoor ambient temperature of an environment where an air conditioner is located before and after a current defrosting in the method of the present invention;

FIG. 3 is a flowchart illustrating an embodiment of determining second temperature drop information of the temperature of the enclosure of the environment where the air conditioner is located before and after the current defrosting according to the method of the present invention;

FIG. 4 is a schematic structural diagram of a control device of an air conditioner according to an embodiment of the present invention;

fig. 5 is a flowchart illustrating a defrosting dynamic adjustment control strategy according to an embodiment of the air conditioner of the present invention.

The reference numbers in the embodiments of the present invention are as follows, in combination with the accompanying drawings:

102-a determination unit; 104-control unit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

According to an embodiment of the present invention, a method for controlling an air conditioner is provided, as shown in fig. 1, which is a schematic flow chart of an embodiment of the method of the present invention. The control method of the air conditioner may include: step S110 and step S120.

In step S110, in the heating mode of the air conditioner, in the case of the current defrosting of the air conditioner, first temperature drop information of an indoor environment temperature of an environment where the air conditioner is located before and after the current defrosting is determined, and second temperature drop information of an enclosure temperature of the environment where the air conditioner is located before and after the current defrosting is determined. The enclosure structure refers to a structure which can be used for forming an indoor environment where an air conditioner is located, such as a wall of a room.

Optionally, with reference to a flowchart of an embodiment of determining the first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting in the method of the present invention shown in fig. 2, a specific process of determining the first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting in step S110 may include: step S210 to step S230.

Step S210 is to obtain a defrosting front indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located before the current defrosting, and obtain a defrosting rear indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located after the current defrosting.

Step S220, an absolute value of an indoor temperature difference between the defrosting pre-indoor temperature value and the defrosting post-indoor temperature value is used as first temperature drop information of the indoor environment temperature before and after the current defrosting. For example: the absolute value of the indoor temperature difference can be an indoor environment temperature drop value during defrosting each time recorded in real time during heating operation. Alternatively, the first and second electrodes may be,

step S230, a ratio between an absolute value of an indoor temperature difference between the defrosting front and rear indoor temperature values and the defrosting time of the current defrosting is used as first temperature drop information of the indoor environment temperature before and after the current defrosting. For example: the ratio can be the indoor environment temperature drop value delta T in every defrosting based on real-time recording in heating operation_oAnd the temperature reduction rate Delta T of the indoor environment temperature obtained by calculating the defrosting time T_o/t。

For example: temperature drop value delta T of indoor environment temperature_oThe indoor ambient temperature at the defrosting exit time is subtracted from the indoor ambient temperature at the defrosting entry time.

Therefore, the absolute value of the indoor temperature difference between the defrosting front and rear indoor temperature values or the ratio of the absolute value of the indoor temperature difference to the defrosting time of the current defrosting is used as the first temperature drop information of the indoor environment temperature before and after the current defrosting, so that the determination of the temperature drop information of the indoor environment temperature before and after the current defrosting is convenient and accurate.

Optionally, with reference to a flowchart of an embodiment of determining second temperature drop information of the temperature of the enclosure of the environment where the air conditioner is located before and after the current defrosting in the method shown in fig. 3, a specific process of determining the second temperature drop information of the temperature of the enclosure of the environment where the air conditioner is located before and after the current defrosting in step S110 may include: step S310 to step S320.

Step S310, acquiring a building envelope temperature value before defrosting of the temperature of the building envelope of the environment where the air conditioner is located before the current defrosting through a temperature detection module, and acquiring a building envelope temperature value after defrosting of the temperature of the building envelope of the environment where the air conditioner is located after the current defrosting.

And step S320, taking the absolute value of the difference value of the enclosure temperature between the defrosting front enclosure temperature value and the defrosting back enclosure temperature value as second temperature drop information of the enclosure temperature before and after the current defrosting. For example: the absolute value of the temperature difference value of the building envelope can be a temperature drop value of the building envelope in defrosting each time recorded in real time during heating operation.

For example: temperature drop delta T of enclosure structure_wSubtracting the building envelope temperature at the defrosting exit time from the building envelope temperature at the defrosting entry time. The temperature of the enclosure structure before and after defrosting can be recorded and the difference value can be calculated through an infrared detector.

Therefore, the absolute value of the difference value of the enclosure temperature between the defrosting front enclosure temperature value and the defrosting back enclosure temperature value is used as the second temperature drop information of the enclosure temperature before and after the current defrosting, so that the temperature drop information of the maintenance structure temperature before and after the current defrosting is conveniently and accurately determined.

In step S120, a next defrosting control manner of the air conditioner is adjusted according to first temperature drop information of the indoor environment temperature before and after the current defrosting and second temperature drop information of the enclosure temperature before and after the current defrosting, specifically, a heating operation duration of the air conditioner after the current defrosting and/or a defrosting control manner of the air conditioner during the next defrosting are dynamically adjusted, that is, the heating operation duration of the air conditioner after the current defrosting and/or the defrosting control manner of the air conditioner during the next defrosting after the current defrosting are dynamically adjusted, so as to dynamically adjust the defrosting control manner of the air conditioner.

For example: the dynamic defrosting control mode based on the defrosting temperature drop can memorize the indoor temperature drop and the building envelope temperature drop during the last defrosting, compare the indoor temperature drop rate and the building envelope temperature drop during the defrosting with preset values, and dynamically adjust the parameter judgment and defrosting control process of the next defrosting, so that the control method of the air conditioner can be adjusted according to the combination of the current thermal environment of the air conditioner, and the adaptability of the air conditioner to different use environments is improved.

For example: and during heating operation, recording the indoor environment temperature drop value, the defrosting time and the temperature drop value of the enclosure structure in real time during defrosting each time. According to the memorized temperature drop rate Delta T of the indoor environment temperature from the defrosting start to the defrosting end for the ith time_oT, temperature drop value delta T of building enclosure_wAnd adjusting the minimum operation period and the defrosting control strategy of the (i + 1) th defrosting. Therefore, the defrosting condition can be dynamically adjusted, the defrosting adaptability is improved, the purposes of timely defrosting and accurate defrosting are achieved, and the indoor comfort level can be improved, so that the problems of single defrosting control strategy and poor defrosting adaptability of the heat pump air conditioner during heating operation are at least solved.

Therefore, the control method of the air conditioner is dynamically adjusted according to the combination of the first temperature drop information of the thermal environment where the current air conditioner is located, such as the indoor environment temperature before and after the current defrosting, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting, so that the defrosting adaptivity can be improved, the defrosting can be timely and accurately carried out, and the indoor comfort level can be improved.

Alternatively, the defrosting control mode for the next defrosting of the air conditioner may be adjusted to include any of the following adjustment situations.

The first adjustment scenario: and if the first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, prolonging the first set time from the set heating operation period after the current defrosting to the set heating operation period before the next defrosting. Wherein the first temperature range is a to b, and the second temperature range is c to d. For example: a. the value range of b is 0-5 ℃/min, and the value ranges of c and d are 0-10 ℃.

For example: when the ith defrosting is detected, the temperature drop rate Delta T of the indoor environment temperature_oA is less than T, and the temperature of the building enclosure is reduced by delta T_wIf < c, the first control strategy is implemented. The first control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is prolonged for time t until the (i + 1) th defrosting is carried out, and then the judgment is carried out again.

The second adjustment scenario: and if the first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, prolonging the set heating operation period from the time after the current defrosting to the time before the next defrosting by a second set time. The second setting time is less than the first setting time, and for example, the second setting time may be half of the first setting time.

For example: when the ith defrosting is detected, the temperature drop rate Delta T of the indoor environment temperature_oA is less than T, and the temperature drop c of the building enclosure is less than or equal to delta T_w< d. Or when the ith defrosting is detected, the temperature drop rate a of the indoor environment temperature is less than or equal to delta T_oB is less than T, and the temperature of the building enclosure is reduced by delta T_w< c, then carry outAnd (5) controlling strategies. The second control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is prolonged by time t/2 until the (i + 1) th defrosting is carried out, and then the judgment is carried out again.

The third adjustment case: if the first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, the set heating operation period from after the current defrosting to before and after the next defrosting is kept unchanged, And the current defrosting mode is taken as the next defrosting mode.

For example: when the ith defrosting is detected, the temperature drop rate Delta T of the indoor environment temperature_oA is less than T, and delta T is less than or equal to d of temperature drop of the enclosure structure_w. Or when the ith defrosting is detected, the temperature drop rate a of the indoor environment temperature is less than or equal to delta T_oB is less than T, and delta T is less than or equal to c_w< d. Or when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT and temperature drop delta T of enclosure structure_w< c. The defrosting control strategy remains unchanged, i.e. after the ith defrosting is performed, the minimum operation period of heating is unchanged, and the defrosting control strategy of the (i + 1) th time is consistent with that of the ith defrosting.

A fourth adjustment scenario: if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, the set heating operation period from the time after the current defrosting to the time before the next defrosting is shortened by a third set time, and the operation frequency of the compressor of the air conditioner is increased and maintained for the first set time before the next defrosting. The third setting time is less than the first setting time, for example, the third setting time may be half of the first setting time.

For example: when the ith defrosting is detected, the temperature drop rate a of the indoor environment temperature is less than or equal to delta T_oB is less than T, and delta T is less than or equal to d of temperature drop of the enclosure structure_w. Or when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT, and the temperature drop c of the building enclosure is less than or equal to delta T_w< d. A third control strategy is implemented. The third control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is shortened by t/2, and the frequency of the compressor is increased and the time t is maintained before the ith +1 defrosting is carried out_hThe ambient temperature of the indoor side is raised, and then defrosting control is performed.

Fifth adjustment scenario: if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, the heating operation period from the time after the current defrosting to the time before the next defrosting is shortened by a fourth set time, the operation frequency of a compressor of the air conditioner is increased before the next defrosting, and the second set time is maintained. The fourth setting time is longer than the third setting time, for example, the fourth setting time may be equal to the first setting time.

For example: when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT and delta T is less than or equal to temperature drop d of the enclosure structure_wA fourth control strategy is implemented. The fourth control strategy may include: after the ith defrosting, the most heating is performedThe time t is shortened in a small running period, and the frequency of the compressor is increased and the time t is maintained before the (i + 1) th defrosting is carried out_hAnd the indoor measured ambient temperature is increased, and then defrosting control is performed.

Therefore, the minimum operation period and the defrosting control strategy of the next defrosting are adjusted according to the first temperature drop information of the indoor environment temperature before and after the current defrosting and the second temperature drop information of the enclosure structure temperature before and after the current defrosting, the condition of entering the defrosting is dynamically adjusted by combining the thermal environment where the current air conditioner is located, the adaptability of defrosting can be improved, timely defrosting and accurate defrosting are realized, and the adaptability of the air conditioner to different service environments can be improved.

Through a large amount of tests, the technical scheme of the embodiment is adopted, the defrosting self-adaptability is improved by dynamically adjusting the condition of entering the defrosting, the purposes of timely defrosting and accurate defrosting are achieved, and the indoor comfort level can be improved.

According to an embodiment of the present invention, there is also provided a control apparatus of an air conditioner corresponding to the control method of the air conditioner. Referring to fig. 4, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The control device of the air conditioner may include: a determination unit 102 and a control unit 104.

In an optional example, the determining unit 102 may be configured to determine, in a heating mode of the air conditioner, first temperature drop information of an indoor environment temperature of an environment where the air conditioner is located before and after a current defrosting of the air conditioner, and determine second temperature drop information of an enclosure temperature of the environment where the air conditioner is located before and after the current defrosting of the air conditioner. The enclosure structure refers to a structure which can be used for forming an indoor environment where an air conditioner is located, such as a wall of a room. The specific function and processing of the determination unit 102 are referred to in step S110.

Alternatively, the determining unit 102 may determine first temperature drop information of the indoor ambient temperature of the environment where the air conditioner is located before and after the current defrosting, where the first temperature drop information includes:

the determining unit 102 may be further configured to obtain a defrosting front indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located before the current defrosting, and obtain a defrosting rear indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located after the current defrosting. The specific function and processing of the determination unit 102 are also referred to in step S210.

The determining unit 102 may be further configured to use an absolute value of an indoor temperature difference between the defrosting front indoor temperature value and the defrosting rear indoor temperature value as first temperature drop information of the indoor environment temperature before and after the current defrosting. For example: the absolute value of the indoor temperature difference can be an indoor environment temperature drop value during defrosting each time recorded in real time during heating operation. The specific function and processing of the determination unit 102 are also referred to in step S220. Alternatively, the first and second electrodes may be,

the determining unit 102 may be further configured to use a ratio between an absolute value of an indoor temperature difference between the defrosting front and rear indoor temperature values and the defrosting time of the current defrosting as first temperature drop information of the indoor environment temperature before and after the current defrosting. The specific function and processing of the determination unit 102 are also referred to in step S230. For example: the ratio can be the indoor environment temperature drop value delta T in every defrosting based on real-time recording in heating operation_oAnd the temperature reduction rate Delta T of the indoor environment temperature obtained by calculating the defrosting time T_o/t。

Optionally, the determining unit 102 may determine second temperature drop information of the enclosure temperature of the environment where the air conditioner is located before and after the current defrosting, where the second temperature drop information includes:

the determining unit 102 may be further configured to obtain, through the temperature detection module, a before-defrosting enclosure temperature value of the enclosure temperature of the environment where the air conditioner is located before the current defrosting, and obtain a after-defrosting enclosure temperature value of the enclosure temperature of the environment where the air conditioner is located after the current defrosting. The specific function and processing of the determination unit 102 are also referred to in step S310.

The determining unit 102 may be further configured to use an absolute value of an envelope temperature difference between the envelope temperature value before defrosting and the envelope temperature value after defrosting as second temperature drop information of the envelope temperature before and after the current defrosting. The specific function and processing of the determination unit 102 are also referred to in step S320. For example: the absolute value of the temperature difference value of the building envelope can be a temperature drop value of the building envelope in defrosting each time recorded in real time during heating operation.

In an optional example, the control unit 104 may be configured to adjust a defrosting control manner of the next defrosting of the air conditioner according to first temperature drop information of the indoor environment temperature before and after the current defrosting and second temperature drop information of the enclosure temperature before and after the current defrosting, specifically, dynamically adjust a heating operation duration of the air conditioner after the current defrosting and/or a defrosting control manner of the air conditioner during the next defrosting, that is, dynamically adjust a heating operation duration of the air conditioner after the current defrosting and/or a defrosting control manner of the air conditioner during the next defrosting after the current defrosting, so as to implement dynamic adjustment of the defrosting control manner of the air conditioner. The specific function and processing of the control unit 104 are also referred to in step S120.

For example: the dynamic defrosting control mode based on the defrosting temperature drop can memorize the indoor temperature drop and the building envelope temperature drop during the last defrosting, compare the indoor temperature drop rate and the building envelope temperature drop during the defrosting with preset values, and dynamically adjust the parameter judgment and defrosting control process of the next defrosting, so that the control device of the air conditioner can be adjusted according to the heat environment where the current air conditioner is combined, and the adaptability of the air conditioner to different use environments is improved.

Therefore, the control device of the air conditioner is dynamically adjusted according to the combination of the first temperature drop information of the thermal environment where the current air conditioner is located, such as the indoor environment temperature before and after the current defrosting, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting, so that the defrosting adaptivity can be improved, the defrosting can be timely and accurately carried out, and the indoor comfort level can be improved.

Alternatively, the control unit 104 adjusts the defrosting control manner for the next defrosting of the air conditioner, and may include any of the following adjustment situations.

The first adjustment scenario: the determining unit 102 may be further specifically configured to, if first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than a lower limit of the first temperature range, and second temperature drop information of the enclosure temperature before and after the current defrosting is smaller than a lower limit of the second temperature range, extend the first set time from the heating operation period set after the current defrosting to the heating operation period set before the next defrosting. Wherein the first temperature range is a to b, and the second temperature range is c to d. For example: a. the value range of b is 0-5 ℃/min, and the value ranges of c and d are 0-10 ℃.

The second adjustment scenario: the determining unit 102 may be further specifically configured to, if first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than a lower limit of the first temperature range, and second temperature drop information of the enclosure temperature before and after the current defrosting is greater than or equal to a lower limit of the second temperature range and smaller than an upper limit of the second temperature range, extend the second set time to the set heating operation period after the current defrosting and before the next defrosting. The second setting time is less than the first setting time, and for example, the second setting time may be half of the first setting time.

For example: when the ith defrosting is detected, the temperature drop rate Delta T of the indoor environment temperature_oA is less than T, and the temperature drop c of the building enclosure is less than or equal to delta T_w< d. Or when the ith defrosting is detected, the temperature drop rate a of the indoor environment temperature is less than or equal to delta T_oB is less than T, and the temperature of the building enclosure is reduced by delta T_wIf < c, implementing a second control strategy. The second control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is prolonged by time t/2 until the (i + 1) th defrosting is carried out, and then the judgment is carried out again.

The third adjustment case: the determining unit 102 may be further specifically configured to, if first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than a lower limit of the first temperature range, and second temperature drop information of the enclosure temperature before and after the current defrosting is greater than or equal to an upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is greater than or equal to a lower limit of the first temperature range and smaller than an upper limit of the first temperature range, and the second temperature drop information of the enclosure temperature before and after the current defrosting is greater than or equal to a lower limit of the second temperature range and smaller than an upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is greater than or equal to an upper limit of the first temperature range, and the second temperature drop information of the enclosure temperature before and after the current defrosting is smaller than a lower limit of the second temperature range, the set heating operation period after the current defrosting and before the next defrosting is kept unchanged, and the current defrosting mode is used as the next defrosting mode.

A fourth adjustment scenario: the determining unit 102 may be further specifically configured to shorten a heating operation period set after the current defrosting to before the next defrosting by a third set time, and increase an operation frequency of a compressor of the air conditioner and maintain the first set time before the next defrosting if first temperature drop information of the indoor environment temperature before and after the current defrosting is greater than or equal to a lower limit of the first temperature range and is less than an upper limit of the first temperature range and second temperature drop information of the enclosure temperature before and after the current defrosting is greater than or equal to an upper limit of the second temperature range, or if the first temperature drop information of the indoor environment temperature before and after the current defrosting is greater than or equal to an upper limit of the first temperature range and the second temperature drop information of the enclosure temperature before and after the current defrosting is greater than or equal to a lower limit of the second temperature range and is less than an upper limit of the second temperature range. The third setting time is less than the first setting time, for example, the third setting time may be half of the first setting time.

Fifth adjustment scenario: the determining unit 102 may be further configured to shorten a heating operation period from after the current defrosting to before the next defrosting by a fourth set time, and increase an operation frequency of a compressor of the air conditioner and maintain the second set time before the next defrosting, if first temperature drop information of the indoor environment temperature before and after the current defrosting is greater than or equal to an upper limit of the first temperature range and second temperature drop information of the enclosure temperature before and after the current defrosting is greater than or equal to an upper limit of the second temperature range. The fourth setting time is longer than the third setting time, for example, the fourth setting time may be equal to the first setting time.

For example: when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT and delta T is less than or equal to temperature drop d of the enclosure structure_wA fourth control strategy is implemented. The fourth control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is shortened by the time t, and the frequency of the compressor is increased and the time t is maintained before the ith +1 defrosting is carried out_hAnd the indoor measured ambient temperature is increased, and then defrosting control is performed.

Since the processes and functions implemented by the apparatus of this embodiment substantially correspond to the embodiments, principles and examples of the method shown in fig. 1 to 3, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.

Through a large number of tests, the technical scheme of the invention is adopted, and the control method of the air conditioner is adjusted according to the combination of the current thermal environment of the air conditioner, so that the condition of entering defrosting is dynamically adjusted, and the adaptability of the air conditioner to different use environments can be improved.

According to an embodiment of the present invention, there is also provided an air conditioner corresponding to a control device of the air conditioner. The air conditioner may include: the control device of the air conditioner described above.

In some schemes, whether the indoor environment temperature reaches comfortable temperature or not can be judged by judging the difference between the indoor temperature and the set temperature and the difference value of the preset value, and whether the air conditioner is stopped for control or the defrosting operation of hot air is judged by judging whether the tube temperature of the outdoor heat exchanger reaches the tube temperature preset value or not, so that the aim of improving the low-temperature heating comfort is finally fulfilled.

In an optional embodiment, the present invention provides a control method for a dynamic air conditioner based on defrosting temperature drop, which can memorize the indoor temperature drop and the enclosure temperature drop during the last defrosting, compare the indoor temperature drop rate and the enclosure temperature drop during the defrosting with preset values, and dynamically adjust the parameter determination and the defrosting control process for the next defrosting. The temperature of the enclosure structure before and after defrosting can be recorded and the difference value can be calculated through the infrared detector.

Judging whether hot gas defrosting control or shutdown control is carried out by judging the current thermal state of the indoor environment and the current frosting amount; the scheme of the invention adjusts the control method of the air conditioner according to the heat environment where the current air conditioner is combined, thereby improving the adaptability of the air conditioner to different use environments.

Therefore, the scheme of the invention can dynamically adjust the defrosting condition, improve the defrosting adaptability, achieve the purposes of timely defrosting and accurate defrosting, and improve the indoor comfort level due to the adoption of the heating and defrosting control mode of the invention, thereby solving the problems of single defrosting control strategy and poor defrosting adaptability during the heating operation of the heat pump air conditioner.

In an alternative embodiment, reference may be made to the example shown in fig. 5 to illustrate a specific implementation process of the scheme of the present invention.

As shown in fig. 5, during heating operation, the indoor environment temperature drop value, the defrosting time, and the temperature drop value of the building envelope during each defrosting operation are recorded in real time. According to the memorized temperature drop rate Delta T of the indoor environment temperature from the defrosting start to the defrosting end for the ith time_oT, temperature drop value delta T of building enclosure_wAnd adjusting the minimum operation period and the defrosting control strategy of the (i + 1) th defrosting. In connection with table one, the specific adjustment manner can be seen in the following exemplary descriptions.

Optionally, when the ith defrosting is detected, the temperature drop rate Δ T of the indoor environment temperature_oA is less than T, and the temperature of the building enclosure is reduced by delta T_wIf < c, the first control strategy is implemented. The first control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is prolonged for time t until the (i + 1) th defrosting is carried out, and then the judgment is carried out again.

Optionally, when the ith defrosting is detected, the temperature drop rate Δ T of the indoor environment temperature_oA is less than T, and the temperature drop c of the building enclosure is less than or equal to delta T_wD is less than d; or when the ith defrosting is detected, the temperature drop rate a of the indoor environment temperature is less than or equal to delta T_oB is less than T, and the temperature of the building enclosure is reduced by delta T_wIf < c, implementing a second control strategy. The second control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is prolonged by time t/2 until the (i + 1) th defrosting is carried out, and then the judgment is carried out again.

Optionally, when the ith defrost is detected, the indoor environmentTemperature drop rate of temperature Δ T_oA is less than T, and delta T is less than or equal to d of temperature drop of the enclosure structure_w(ii) a Or when the ith defrosting is detected, the temperature drop rate a of the indoor environment temperature is less than or equal to delta T_oB is less than T, and delta T is less than or equal to c_wD is less than d; or when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT and temperature drop delta T of enclosure structure_w< c; the defrosting control strategy remains unchanged, i.e. after the ith defrosting is performed, the minimum operation period of heating is unchanged, and the defrosting control strategy of the (i + 1) th time is consistent with that of the ith defrosting.

Optionally, when the ith defrosting is detected, the temperature drop rate a ≦ Δ T of the indoor environment temperature_oB is less than T, and delta T is less than or equal to d of temperature drop of the enclosure structure_w(ii) a Or when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT, and the temperature drop c of the building enclosure is less than or equal to delta T_wD is less than d; a third control strategy is implemented. The third control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is shortened by t/2, and the frequency of the compressor is increased and the time t is maintained before the ith +1 defrosting is carried out_hThe ambient temperature of the indoor side is raised, and then defrosting control is performed.

Optionally, when the ith defrosting is detected, the temperature drop rate b of the indoor environment temperature is less than or equal to delta T_oT and delta T is less than or equal to temperature drop d of the enclosure structure_wA fourth control strategy is implemented. The fourth control strategy may include: after the ith defrosting is carried out, the minimum operation period of heating is shortened by the time t, and the frequency of the compressor is increased and the time t is maintained before the ith +1 defrosting is carried out_hAnd the indoor measured ambient temperature is increased, and then defrosting control is performed.

TABLE 1 control strategies for different temperature drop rates and temperature drops

Wherein the temperature drop value DeltaT of the indoor ambient temperature_oSubtracting the indoor ambient temperature at the defrosting exit time from the indoor ambient temperature at the defrosting entry timeDelta T of temperature drop of enclosure structure_wSubtracting the building envelope temperature at the defrosting exit moment from the building envelope temperature at the defrosting entry moment; a. the value range of b is 0-5 ℃/min; c. the value range of d is 0-10 ℃.

For example: the temperature of the enclosure structure is generally the temperature of the walls on four sides of a room. If an infrared detector is additionally arranged, the temperature of the surrounding wall body can be detected; a temperature sensor can also be arranged on the wall body to detect the temperature of the wall body.

Since the processing and functions of the air conditioner of this embodiment are basically corresponding to the embodiments, principles and examples of the apparatus shown in fig. 4, the description of this embodiment is not given in detail, and reference may be made to the related descriptions in the embodiments, which are not described herein again.

Through a large number of tests, the technical scheme of the invention can solve the problems of single defrosting control strategy and poor defrosting self-adaptability during heating operation of the heat pump air conditioner by dynamically adjusting the defrosting parameter judgment and the defrosting control process, and improves the defrosting thermal comfort.

According to an embodiment of the present invention, there is also provided a storage medium corresponding to a control method of an air conditioner. The storage medium may include: the storage medium has stored therein a plurality of instructions; the plurality of instructions are used for loading and executing the control method of the air conditioner by the processor.

Since the processing and functions implemented by the storage medium of this embodiment substantially correspond to the embodiments, principles, and examples of the methods shown in fig. 1 to fig. 3, details are not described in the description of this embodiment, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.

Through a large number of tests, the technical scheme of the invention is adopted, the indoor temperature drop and the building enclosure temperature drop during the last defrosting are memorized, and the indoor temperature drop rate and the building enclosure temperature drop during the defrosting are compared with the preset value, so that the defrosting parameter judgment and the defrosting control process are dynamically adjusted, and the defrosting adaptability can be improved.

According to an embodiment of the present invention, there is also provided an air conditioner corresponding to a control method of the air conditioner. The air conditioner may include: a processor for executing a plurality of instructions; a memory to store a plurality of instructions; the plurality of instructions are stored by the memory, and are loaded and executed by the processor.

Since the processing and functions of the air conditioner of this embodiment are basically corresponding to the embodiments, principles and examples of the methods shown in fig. 1 to 3, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not described herein again.

Through a large number of tests, the technical scheme of the invention is adopted, and the defrosting parameter judgment and defrosting control process of the next defrosting is dynamically adjusted by memorizing the indoor temperature drop and the building enclosure temperature drop during the last defrosting, and comparing the indoor temperature drop rate and the building enclosure temperature drop during the defrosting with preset values, so that the defrosting adaptability and the defrosting thermal comfort are improved.

In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.

The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A control method of an air conditioner, comprising:

determining first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting, and determining second temperature drop information of the enclosure structure temperature of the environment where the air conditioner is located before and after the current defrosting;

and adjusting the next defrosting control mode of the air conditioner according to the first temperature drop information of the indoor environment temperature before and after the current defrosting and the second temperature drop information of the temperature of the enclosure structure before and after the current defrosting so as to dynamically adjust the defrosting control mode of the air conditioner.

2. The method of claim 1, wherein determining first temperature drop information of an indoor ambient temperature of an environment in which the air conditioner is located before and after the current defrosting includes:

acquiring a defrosting front indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located before the current defrosting, and acquiring a defrosting rear indoor temperature value of the indoor environment temperature of the environment where the air conditioner is located after the current defrosting;

taking an absolute value of an indoor temperature difference value between the defrosting front indoor temperature value and the defrosting rear indoor temperature value as first temperature drop information of the indoor environment temperature before and after the current defrosting; alternatively, the first and second electrodes may be,

and taking the ratio of the absolute value of the indoor temperature difference between the defrosting front indoor temperature value and the defrosting rear indoor temperature value to the defrosting time of the current defrosting as first temperature drop information of the indoor environment temperature before and after the current defrosting.

3. The method of claim 1, wherein determining second temperature drop information of the temperature of the enclosure of the environment in which the air conditioner is located before and after the current defrosting comprises:

the method comprises the steps that through a temperature detection module, an envelope temperature value before defrosting of the envelope temperature of the environment where the air conditioner is located before the current defrosting is obtained, and a post-defrosting envelope temperature value after the current defrosting of the envelope temperature of the environment where the air conditioner is located is obtained;

and taking the absolute value of the difference value of the enclosure structure temperature between the defrosting front enclosure structure temperature value and the defrosting back enclosure structure temperature value as second temperature drop information of the enclosure structure temperature before and after the current defrosting.

4. The control method of the air conditioner according to any one of claims 1 to 3, wherein adjusting a defrosting control manner of the air conditioner for next defrosting includes:

if the first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, the first set time is prolonged for the set heating operation period from the current defrosting to the next defrosting;

if first temperature drop information of the indoor environment temperature before and after the current defrosting is smaller than the lower limit of a first temperature range, and second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of a second temperature range and smaller than the upper limit of the second temperature range, prolonging a set heating operation period from the time after the current defrosting to the time before the next defrosting by a second set time; wherein the second set time is less than the first set time;

if the first temperature drop information of the indoor environment temperature before and after the current defrosting is less than the lower limit of the first temperature range and the second temperature drop information of the enclosure temperature before and after the current defrosting is more than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, or if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is smaller than the lower limit of the second temperature range, keeping the set heating operation period from the current defrosting to the next defrosting unchanged;

if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the lower limit of the first temperature range and smaller than the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, or the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range, and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the lower limit of the second temperature range and smaller than the upper limit of the second temperature range, the set heating operation period from the time after the current defrosting to the time before the next defrosting is shortened by a third set time, and the operation frequency of a compressor of the air conditioner is increased and maintained for the first set time before the next defrosting; wherein the third setting time is less than the first setting time;

if the first temperature drop information of the indoor environment temperature before and after the current defrosting is larger than or equal to the upper limit of the first temperature range and the second temperature drop information of the enclosure structure temperature before and after the current defrosting is larger than or equal to the upper limit of the second temperature range, shortening the heating operation period from the time after the current defrosting to the time before the next defrosting by a fourth set time, increasing the operation frequency of a compressor of the air conditioner before the next defrosting, and maintaining the second set time; and the fourth set time is greater than the third set time.

5. A control device of an air conditioner, characterized by comprising:

the determining unit is used for determining first temperature drop information of the indoor environment temperature of the environment where the air conditioner is located before and after the current defrosting, and determining second temperature drop information of the envelope structure temperature of the environment where the air conditioner is located before and after the current defrosting;

and the control unit is used for adjusting the next defrosting control mode of the air conditioner according to the first temperature drop information of the indoor environment temperature before and after the current defrosting and the second temperature drop information of the temperature of the enclosure structure before and after the current defrosting so as to dynamically adjust the defrosting control mode of the air conditioner.

6. The control device of an air conditioner according to claim 5, wherein the determining unit determines first temperature drop information of an indoor ambient temperature of an environment where the air conditioner is located before and after the current defrosting, including:

7. The control device of the air conditioner according to claim 5, wherein the determining unit determines second temperature drop information of the temperature of the enclosure of the environment where the air conditioner is located before and after the current defrosting, including:

8. The control device of the air conditioner according to any one of claims 5 to 7, wherein the control unit adjusts a defrosting control manner of a next defrosting of the air conditioner, including:

9. An air conditioner, comprising: the control device of the air conditioner according to any one of claims 5 to 8;

alternatively, the first and second electrodes may be,

the method comprises the following steps:

a processor for executing a plurality of instructions;

a memory to store a plurality of instructions;

wherein the plurality of instructions are stored by the memory, and loaded and executed by the processor, the control method of the air conditioner according to any one of claims 1 to 4.

10. A storage medium having a plurality of instructions stored therein; the plurality of instructions for loading and executing, by a processor, the control method of the air conditioner according to any one of claims 1 to 4.