CN108332352B - Air conditioner heat dissipation control method and air conditioner - Google Patents
Air conditioner heat dissipation control method and air conditioner Download PDFInfo
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- CN108332352B CN108332352B CN201810187384.0A CN201810187384A CN108332352B CN 108332352 B CN108332352 B CN 108332352B CN 201810187384 A CN201810187384 A CN 201810187384A CN 108332352 B CN108332352 B CN 108332352B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
Abstract
The invention provides an air conditioner heat dissipation control method and an air conditioner. The air conditioner heat dissipation control method comprises the following steps: acquiring an initial pipe temperature and an initial environment temperature corresponding to the starting of the air conditioner; acquiring the temperature of a sampling pipe of the air conditioner and the corresponding environmental sampling temperature according to a preset time period; judging the corresponding heat dissipation state of the air conditioner based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature; and carrying out heat dissipation control according to the corresponding heat dissipation state until a preset exit condition is met. This scheme not only can detect out the bad problem of heat dissipation that causes because the airtight scheduling problem of installation environment, can also detect the bad condition of heat dissipation that causes because the dust blocks up according to sampling pipe temperature and initial pipe temperature to improve the detection precision to the bad heat dissipation. And then, based on the corresponding heat dissipation state, corresponding heat dissipation control is carried out, so that the problem of poor heat dissipation of the air conditioner is more pointed, and the problem of poor heat dissipation is timely and effectively solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner heat dissipation control method and an air conditioner.
Background
The air conditioner is an air conditioner, and plays an irreplaceable role in improving the living environment of users. Temperature regulation is a main function of an air conditioner, and although it provides a comfortable temperature environment for a user, it cannot provide a preferable operation temperature for itself, particularly, an outdoor unit of the air conditioner. Meanwhile, the operating temperature directly affects the working performance and the service life of the air conditioner.
The heat dissipation performance of the air conditioner is an important factor affecting the operation state of the air conditioner. That is, whether the heat dissipation of the air conditioner is good or not directly affects the operation performance and the service life of the air conditioner, especially for the outdoor unit of the air conditioner. In the related art, it is considered that the heat dissipation problem of the outdoor unit of the air conditioner is related to the installation position, and therefore, whether the poor heat dissipation occurs is determined by monitoring the temperature of the installation position of the outdoor unit. Although the method is simple, the accuracy is not high, and the problem of poor heat dissipation cannot be timely and correctly treated.
Therefore, there is a need for an air conditioner heat dissipation control method for improving the accuracy of detecting poor heat dissipation.
Disclosure of Invention
In view of the above, the present invention is directed to an air conditioner heat dissipation control method and an air conditioner, so as to improve accuracy of detecting poor heat dissipation, effectively handle the problem of poor heat dissipation in time, and avoid affecting comfort of the air conditioner.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an air conditioner heat dissipation control method is applied to an air conditioner and comprises the following steps: acquiring an initial pipe temperature and an initial environment temperature corresponding to the starting of the air conditioner; acquiring the temperature of a sampling pipe of the air conditioner and the corresponding environmental sampling temperature according to a preset time period; judging the corresponding heat dissipation state of the air conditioner based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature; and carrying out heat dissipation control according to the corresponding heat dissipation state until a preset condition is met, and quitting the heat dissipation control.
Compared with the prior art, the air conditioner heat dissipation control method has the following advantages:
according to the air conditioner heat dissipation control method, the heat dissipation state of the air conditioner is judged by utilizing the environment sampling temperature and the sampling pipe temperature acquired in each time period and the initial pipe temperature and the initial environment temperature acquired when the air conditioner is started, so that the heat dissipation bad condition caused by the problems of sealing of the installation environment and the like can be detected, the heat dissipation bad condition caused by dust blockage can be detected according to the sampling pipe temperature and the initial pipe temperature, and the detection accuracy of the heat dissipation bad condition is improved. And then, based on the corresponding heat dissipation state, corresponding heat dissipation control is carried out, so that the problem of poor heat dissipation of the air conditioner is more pointed, and the problem of poor heat dissipation is timely and effectively solved.
Another objective of the present invention is to provide an air conditioner to improve the accuracy of detecting poor heat dissipation, effectively deal with the problem of poor heat dissipation in time, and avoid affecting the comfort of the air conditioner.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the air conditioner comprises an acquisition unit and a control unit, wherein the acquisition unit is electrically connected with the control unit; the acquisition unit is used for acquiring the corresponding initial pipe temperature and the initial environment temperature when the air conditioner is started; the acquisition unit is also used for acquiring the temperature of a sampling pipe of the air conditioner and the corresponding environmental sampling temperature according to a preset time period; the control unit is used for judging the corresponding heat dissipation state of the air conditioner based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature; and the control unit is also used for carrying out heat dissipation control according to the corresponding heat dissipation state until a preset condition is met, and quitting the heat dissipation control.
Compared with the prior art, the air conditioner and the air conditioner heat dissipation control method have the same advantages, and are not repeated herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating steps of a method for controlling heat dissipation of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating sub-steps of step S102 in FIG. 1;
FIG. 3 is a flowchart illustrating sub-steps of step S104 in FIG. 1;
fig. 4 is a schematic diagram of an air conditioner according to an embodiment of the present invention.
Description of reference numerals:
the system comprises an air conditioner 1, a control unit 2, a collecting unit 3, a compressor 4, an expansion valve 5 and an external fan 6.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In addition, the tube temperature mentioned in the embodiment of the present invention refers to the outer tube temperature when the air conditioner 1 performs cooling. Further, the outer pipe temperature may be a pipe temperature inside an outdoor unit of the air conditioner 1; the air conditioner 1 is configured to generate heat at an inner tube temperature. Further, the inner pipe temperature may be a pipe temperature inside the indoor unit of the air conditioner 1. The ambient temperature mentioned in the embodiment of the present invention refers to a temperature value of an environment in which an outdoor unit of the air conditioner 1 is located. The environmental sampling temperature mentioned in the embodiment of the present invention refers to the collected environmental temperature. The heat dissipation mode mentioned in the embodiment of the present invention refers to a control strategy that the air conditioner 1 operates to solve the problem of poor heat dissipation. The fan rotation speed mentioned in the embodiment of the present invention refers to the rotation speed of the outer fan 6. The outer fan 6 comprises a multi-stage fan speed. The blocking heat dissipation referred to in the embodiments of the present invention refers to heat dissipation failure caused by blocking of the condensation duct by dust. The poor heat dissipation of the environment mentioned in the embodiment of the present invention refers to poor heat dissipation caused by the installation environment of the air conditioner 1. For example, poor heat dissipation may occur due to a closed installation environment (installation in a blind, or a short linear distance from the outdoor unit to the wall surface during installation).
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
First embodiment
Referring to fig. 1, fig. 1 shows a method for controlling heat dissipation of an air conditioner according to an embodiment of the present invention. The air conditioner heat dissipation control method is applied to the air conditioner 1. As shown in fig. 1, the air conditioner heat dissipation control method includes the following steps:
step S101, obtaining the corresponding initial pipe temperature and initial environment temperature when the air conditioner 1 is started.
In the embodiment of the present invention, the pipe temperature is collected once every time the air conditioner 1 is started, and this is used as the corresponding initial pipe temperature. Alternatively, if the air conditioner 1 is in a cooling state, the collected tube temperature is the outer tube temperature. If the air conditioner 1 is in a heating state, the collected pipe temperature is the inner pipe temperature. Each time the air conditioner 1 is started, an ambient temperature acquisition is also performed to be taken as a corresponding initial ambient temperature. In one embodiment, the tube temperature may be acquired by a temperature sensor mounted on a pipe in the indoor unit or by a temperature sensor mounted on a pipe in the outdoor unit. The ambient temperature can be acquired by a temperature sensor arranged on the shell of the outdoor unit.
Step S102, acquiring the temperature of the sampling pipe of the air conditioner 1 and the corresponding environment sampling temperature according to a preset time period.
In the embodiment of the present invention, if the air conditioner 1 is in the cooling mode, the current temperature of the outer tube is collected as the temperature of the sampling tube. If the air conditioner 1 is in the heating mode, the current temperature of the inner pipe is collected as the temperature of the sampling pipe. Step S102 is executed repeatedly according to a preset time period, and the corresponding sampling tube temperature and the environmental sampling temperature are obtained in each acquisition, and the process proceeds to step S103.
In one embodiment, the preset time period includes a first time period and a second time period. The environment sampling temperature comprises a first environment temperature and a second environment temperature. The sampling tube temperature comprises a first tube temperature and a second tube temperature. As shown in fig. 2, step S102 may include the steps of:
and a substep S1021, obtaining the first tube temperature and the corresponding first environment temperature according to the first time period.
And a substep S1022, obtaining the second tube temperature and the corresponding second ambient temperature according to the second time period.
It should be noted that, in the embodiment of the present invention, the execution sequence between the sub-step S1021 and the sub-step S1022 is not limited. Optionally, sub-step S1021 and sub-step S1022 are independent of each other. Different types of poor heat dissipation problems, such as poor environmental heat dissipation and poor blocking heat dissipation, can be determined based on the first tube temperature and the first ambient temperature and the second tube temperature and the second ambient temperature collected in substep S1021 and substep S1022, respectively.
Furthermore, the cycle length for collecting the corresponding sampling tube temperature and the environmental sampling temperature can be set according to the harm and the emergency degree of each type of poor heat dissipation problem. In the above example, when the first tube temperature and the first ambient temperature collected in the first time period are used for determining the poor heat dissipation of the environment, and the second tube temperature and the second ambient temperature collected in the second time period are used for determining the poor heat dissipation of the blockage, the cycle length of the first time period is shorter than that of the second time period because the poor heat dissipation of the environment is more urgent than the poor heat dissipation of the blockage.
And step S103, judging the corresponding heat dissipation state of the air conditioner 1 based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature.
As an implementation manner, when the difference between the first tube temperature and the initial tube temperature exceeds a preset first threshold, and the difference between the first ambient temperature and the initial ambient temperature exceeds a preset second threshold, it is determined that the heat dissipation state corresponding to the air conditioner 1 includes poor ambient heat dissipation, so as to start a first heat dissipation mode to perform heat dissipation control. And when the difference value between the second pipe temperature and the initial pipe temperature exceeds a preset third threshold value and the difference value between the second environment temperature and the initial environment temperature is lower than a preset fourth threshold value, judging that the heat dissipation state corresponding to the air conditioner 1 comprises poor blocking heat dissipation so as to start a second heat dissipation mode to carry out heat dissipation control.
And step S104, performing heat dissipation control according to the corresponding heat dissipation state until a preset condition is met, and quitting the heat dissipation control.
In the embodiment of the present invention, as shown in fig. 3, step S104 includes the following sub-steps:
in the substep S1041, if the heat dissipation state includes poor heat dissipation of the environment, a first heat dissipation mode is started.
In the embodiment of the present invention, the first heat dissipation mode may be operated in the following manner:
and according to a preset first time interval, gradually increasing the corresponding rotating speed of the fan until the highest rotating speed of the fan is reached. Preferably, the first time interval may be 30s in length, that is, every 30s, the first gear is increased based on the current fan speed of the outer fan 6 until the highest speed is reached after the gear of the highest speed is adjusted.
And adjusting the opening degree of the expansion valve 5 based on the preset number of steps according to a preset second time interval until the expansion valve 5 reaches the maximum opening degree. The interval duration of the second time interval is composed of a first duration and a second duration. Alternatively, the adjustment of the opening degree of the expansion valve 5 based on the predetermined number of steps may be: the expansion valve 5 is controlled to increase the expansion valve opening in predetermined steps for a first period of time. And then, after the expansion valve operates for the second time length according to the adjusted opening degree of the expansion valve, entering the next adjacent second time interval.
For one embodiment, the first time period may be 20 seconds, the predetermined number of steps may be 60 steps, and the second time period may be 5 minutes. The manner of adjusting the opening degree of the expansion valve 5 based on the predetermined number of steps according to the preset second time interval may be that, in each second time interval, the opening degree of the expansion valve 5 is increased by 60 steps on the basis of the current opening degree of the expansion valve 5 within 20 seconds, after the increase of the opening degree of the expansion valve 5 is completed, the expansion valve is operated for 5 minutes according to the adjusted opening degree of the expansion valve 5, and then the next second time interval is entered until the opening degree of the expansion valve 5 reaches the maximum opening degree, and the operation at the maximum opening degree is maintained.
In the substep S1042, after the first heat dissipation mode is operated for a preset first exit time, a corresponding third ambient temperature is collected until a difference between the collected third ambient temperature and the initial ambient temperature is smaller than a preset fifth threshold.
In the embodiment of the present invention, after the time after the first heat dissipation mode is started reaches the preset first exit time, the third ambient temperature corresponding to the air conditioner 1 starts to be collected, and the collected third ambient temperature is compared with the initial ambient temperature until the difference between the collected third ambient temperature and the initial ambient temperature is smaller than the preset fifth threshold, and the process proceeds to substep S1043. The substep S1041 and the substep S1042 are in parallel.
And a substep S1043 of exiting the first heat dissipation mode.
In the embodiment of the present invention, after exiting the first heat dissipation mode, the air conditioner 1 resumes normal operation.
And step S1044, if the heat dissipation state includes the blocking heat dissipation failure, starting a second heat dissipation mode.
In the embodiment of the present invention, the second heat dissipation mode may be operated in the following manner:
and according to a preset third time interval and a preset frequency, the frequency of the compressor 4 is adjusted downwards until the frequency of the compressor 4 is adjusted downwards to a corresponding minimum frequency. And after the compressor 4 operates for a preset third time according to the minimum frequency, reminding a user to process. The way of reminding the user to process comprises sending prompt information to the user or sending a maintenance request to a preset after-sales contact point.
Preferably, the third time interval has a duration of 90 seconds and the predetermined frequency is 8Hz, and the second heat dissipation mode may be operated by adjusting the frequency of the compressor 4 down by 8Hz every 90 seconds until the compressor 4 is operated at the minimum frequency.
And in the substep S1045, after the second heat dissipation mode is operated for a preset second exit time, collecting a corresponding third tube temperature until a difference value between the collected third tube temperature and the initial tube temperature is smaller than a preset sixth threshold value.
In this embodiment of the present invention, after the difference between the collected third tube temperature and the initial tube temperature is smaller than a preset sixth threshold, the process proceeds to sub-step S1046. It should be noted that the sub-step S1044 is in parallel with the sub-step S1045.
And a substep S1046 of exiting the second heat dissipation mode.
In the embodiment of the present invention, after exiting the second heat dissipation mode, the air conditioner 1 resumes normal operation. It should be noted that there is no necessarily any order between sub-step S1041 and sub-step 1044. That is, the air conditioner 1 may operate the first heat dissipation mode and the second heat dissipation mode simultaneously, or operate a corresponding heat dissipation mode according to specific conditions, and enable the first heat dissipation mode and the second heat dissipation mode without interfering with each other.
Second embodiment
Referring to fig. 4, fig. 4 is a schematic diagram of an air conditioner 1 according to an embodiment of the present invention. The air conditioner 1 further includes a collection unit 3 and a control unit 2. The acquisition unit 3 is electrically connected with the control unit 2.
And the acquisition unit 3 is used for acquiring the corresponding initial pipe temperature and the initial environment temperature when the air conditioner 1 is started.
In an embodiment of the present invention, the collecting unit 3 may include a plurality of temperature sensors disposed at different positions. For example, a temperature sensor mounted on a pipe in the indoor unit, a temperature sensor mounted on a pipe in the outdoor unit, and a temperature sensor mounted on the outside of the outdoor unit. Specifically, if the air conditioner 1 needs to perform cooling, the current temperature of the outer tube is collected by a temperature sensor installed on the inner pipeline of the outdoor unit as the initial temperature of the outer tube. If the air conditioner 1 needs to heat, the current inner pipe temperature is collected as the initial pipe temperature by a temperature sensor installed on the pipe in the indoor unit.
The acquisition unit 3 is further configured to acquire the temperature of the sampling pipe of the air conditioner 1 and the corresponding ambient sampling temperature according to a preset time period.
In the embodiment of the present invention, if the air conditioner 1 is in the cooling mode, the temperature sensor installed on the pipeline inside the outdoor unit collects the current temperature of the outer pipe as the temperature of the sampling pipe. If the air conditioner 1 is in the heating mode, the current temperature of the inner pipe is collected by a temperature sensor arranged on the pipeline in the indoor unit to be used as the temperature of the sampling pipe.
And the control unit 2 is used for judging the corresponding heat dissipation state of the air conditioner 1 based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature.
Further, the acquisition unit 3 may acquire the first tube temperature and the corresponding first ambient temperature according to the first time period. And acquiring the second tube temperature and the corresponding second ambient temperature according to the second time period.
And the control unit 2 is further configured to perform heat dissipation control according to the corresponding heat dissipation state until a predetermined condition is met, and quit the heat dissipation control.
In the embodiment of the present invention, when the difference between the first tube temperature and the initial tube temperature exceeds a preset first threshold, and the difference between the first ambient temperature and the initial ambient temperature exceeds a preset second threshold, the control unit 2 determines that the heat dissipation state corresponding to the air conditioner 1 includes poor ambient heat dissipation, and the control unit 2 starts a first heat dissipation mode to perform heat dissipation control. When the difference between the second tube temperature and the initial tube temperature exceeds a preset third threshold and the difference between the second ambient temperature and the initial ambient temperature is lower than a preset fourth threshold, the control unit 2 determines that the heat dissipation state corresponding to the air conditioner 1 includes poor blocking heat dissipation, and the control unit 2 starts a second heat dissipation mode to perform heat dissipation control.
Further, the control unit 2 is electrically connected to the compressor 4, the expansion valve 5, and the external fan 6, respectively. If the heat dissipation state includes that the environment is poor in heat dissipation, the control unit 2 starts a first heat dissipation mode. And after the first heat dissipation mode is operated for a preset first exit time, acquiring a corresponding third environment temperature until the difference value between the acquired third environment temperature and the initial environment temperature is smaller than a preset fifth threshold value, and exiting the first heat dissipation mode. Specifically, the first heat dissipation mode is started in such a way that the control unit 2 gradually increases the corresponding rotational speed of the fan according to a preset first time interval until the maximum rotational speed of the fan is reached. The control unit 2 further adjusts the opening degree of the expansion valve 5 at a preset second time interval based on a predetermined number of steps until the maximum opening degree of the expansion valve 5 is reached. The interval duration of the second time interval is composed of a first duration and a second duration. Alternatively, the adjustment of the opening degree of the expansion valve 5 based on the predetermined number of steps may be controlling the expansion valve 5 to increase the opening degree of the expansion valve by the predetermined number of steps in the first period. And then, after the expansion valve operates for the second time length according to the adjusted opening degree of the expansion valve, entering the next adjacent second time interval. Until the expansion valve 5 reaches the maximum opening degree.
If the heat dissipation state includes the blocking heat dissipation failure, the control unit 2 starts a second heat dissipation mode. And after the second heat dissipation mode is operated for a preset second exit time, collecting the corresponding third tube temperature until the difference value between the collected third tube temperature and the initial tube temperature is smaller than a preset sixth threshold value, and exiting the second heat dissipation mode. Specifically, the second heat dissipation mode is started by down-regulating the frequency of the compressor 4 according to a preset third time interval and a preset frequency until the minimum frequency of the compressor 4. And after the preset third time length is operated according to the minimum frequency, reminding a user to clean.
In summary, embodiments of the present invention provide an air conditioner heat dissipation control method and a controller. The air conditioner heat dissipation control method is applied to the air conditioner. The air conditioner heat dissipation control method comprises the following steps: acquiring an initial pipe temperature and an initial environment temperature corresponding to the starting of the air conditioner; acquiring the temperature of a sampling pipe of the air conditioner and the corresponding environmental sampling temperature according to a preset time period; judging the corresponding heat dissipation state of the air conditioner based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature; and carrying out heat dissipation control according to the corresponding heat dissipation state until a preset exit condition is met. Not only can detect out the bad condition of heat dissipation that causes because the airtight scheduling problem of installation environment, can also detect the bad condition of heat dissipation that causes because the dust blocks up according to sampling pipe temperature and initial pipe temperature, realized improving the detection precision to the heat dissipation is bad. And then, based on the corresponding heat dissipation state, corresponding heat dissipation control is carried out, so that the problem of poor heat dissipation of the air conditioner is more pointed, and the problem of poor heat dissipation is timely and effectively solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The air conditioner heat dissipation control method is applied to an air conditioner (1), and comprises the following steps:
acquiring an initial pipe temperature and an initial environment temperature corresponding to the starting of the air conditioner (1);
acquiring the temperature of a sampling pipe of the air conditioner (1) and the corresponding environmental sampling temperature according to a preset time period; wherein the sampling tube temperature comprises a first tube temperature and a second tube temperature; the environment sampling temperature comprises a first environment temperature and a second environment temperature, and the preset time period comprises a first time period and a second time period; the step of obtaining the temperature of the sampling pipe of the air conditioner (1) and the corresponding sampling temperature of the environment according to the preset time period comprises the following steps: acquiring the first tube temperature and the corresponding first environment temperature according to the first time period; acquiring the second tube temperature and the corresponding second ambient temperature according to the second time period;
judging the corresponding heat dissipation state of the air conditioner (1) based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature; the step of judging the heat dissipation state corresponding to the air conditioner (1) based on the sampling tube temperature, the initial tube temperature, the environment sampling temperature and the initial environment temperature comprises the step of judging that the heat dissipation state corresponding to the air conditioner (1) comprises poor environment heat dissipation when the difference value between the first tube temperature and the initial tube temperature exceeds a preset first threshold value and the difference value between the first environment temperature and the initial environment temperature exceeds a preset second threshold value so as to start a first heat dissipation mode to carry out heat dissipation control;
and carrying out heat dissipation control according to the corresponding heat dissipation state until a preset condition is met, and quitting the heat dissipation control.
2. The air conditioner heat dissipation control method according to claim 1, wherein the step of determining the corresponding heat dissipation state of the air conditioner (1) based on the sampling pipe temperature, the initial pipe temperature, the environmental sampling temperature, and the initial environmental temperature further comprises:
and when the difference value between the second pipe temperature and the initial pipe temperature exceeds a preset third threshold value and the difference value between the second environment temperature and the initial environment temperature is lower than a preset fourth threshold value, judging that the heat dissipation state corresponding to the air conditioner (1) comprises poor blocking heat dissipation so as to start a second heat dissipation mode to carry out heat dissipation control.
3. The heat dissipation control method of an air conditioner according to claim 2, wherein performing heat dissipation control until a predetermined condition is satisfied according to the heat dissipation state includes:
if the heat dissipation state comprises poor environment heat dissipation, starting a first heat dissipation mode;
after the first heat dissipation mode is operated for a preset first exit time, acquiring a corresponding third environment temperature until a difference value between the acquired third environment temperature and the initial environment temperature is smaller than a preset fifth threshold value;
exiting the first heat dissipation mode;
if the heat dissipation state comprises the blocking heat dissipation failure, starting a second heat dissipation mode;
after the second heat dissipation mode is operated for a preset second exit time, acquiring a corresponding third tube temperature until a difference value between the acquired third tube temperature and the initial tube temperature is smaller than a preset sixth threshold value;
and exiting the second heat dissipation mode.
4. The heat dissipation control method of claim 3, wherein the operating the first heat dissipation mode comprises:
according to a preset first time interval, gradually increasing the corresponding rotating speed of the fan until the highest rotating speed of the fan is reached;
and adjusting the opening degree of the expansion valve (5) based on the preset steps according to a preset second time interval until the maximum opening degree of the expansion valve (5) is reached.
5. The heat dissipation control method of the air conditioner as claimed in claim 4, wherein the interval duration of the second time interval consists of a first duration and a second duration, and the step of adjusting the opening degree of the expansion valve (5) based on the predetermined number of steps according to the preset second time interval comprises:
controlling the expansion valve (5) to increase the opening degree of the expansion valve (5) according to a preset step number in the first time period;
and after the second time length is operated according to the adjusted opening degree of the expansion valve (5), entering the next adjacent second time interval.
6. The heat dissipation control method of claim 3, wherein the manner of operating the second heat dissipation mode comprises:
down-regulating the frequency of the compressor (4) according to a preset third time interval and a preset frequency until the minimum frequency of the compressor (4);
and after the preset third time length is operated according to the minimum frequency, reminding a user to clean.
7. The air conditioner heat dissipation control method according to claim 1, wherein when the air conditioner (1) performs cooling, the initial pipe temperature is an initial outer pipe temperature, and the sampling pipe temperature is a collected outer pipe temperature; when the air conditioner (1) heats, the initial pipe temperature is the initial inner pipe temperature, and the sampling pipe temperature is the collected inner pipe temperature.
8. The air conditioner is characterized in that the air conditioner (1) comprises an acquisition unit (3) and a control unit (2), wherein the acquisition unit (3) is electrically connected with the control unit (2);
the acquisition unit (3) is used for acquiring the corresponding initial pipe temperature and the initial environment temperature when the air conditioner (1) is started;
the acquisition unit (3) is further used for acquiring the temperature of a sampling pipe of the air conditioner (1) and the corresponding environmental sampling temperature according to a preset time period; wherein the sampling tube temperature comprises a first tube temperature and a second tube temperature; the environment sampling temperature comprises a first environment temperature and a second environment temperature, and the preset time period comprises a first time period and a second time period; the acquisition unit (3) is further configured to: acquiring the first tube temperature and the corresponding first environment temperature according to the first time period; acquiring the second tube temperature and the corresponding second ambient temperature according to the second time period;
the control unit (2) is used for judging the corresponding heat dissipation state of the air conditioner (1) based on the sampling pipe temperature, the initial pipe temperature, the environment sampling temperature and the initial environment temperature; the control unit (2) is further configured to determine that the heat dissipation state corresponding to the air conditioner (1) includes poor environmental heat dissipation when a difference between the first tube temperature and the initial tube temperature exceeds a preset first threshold and a difference between the first environmental temperature and the initial environmental temperature exceeds a preset second threshold, so as to start a first heat dissipation mode to perform heat dissipation control;
and the control unit (2) is also used for carrying out heat dissipation control according to the corresponding heat dissipation state until a preset condition is met, and quitting the heat dissipation control.
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| CN109323383B (en) * | 2018-09-12 | 2020-08-18 | 奥克斯空调股份有限公司 | Control method and control device of variable frequency air conditioner in special installation environment and air conditioner |
| CN111023504B (en) * | 2019-12-20 | 2021-06-25 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner, air conditioner and storage medium |
| CN113108426A (en) * | 2021-04-07 | 2021-07-13 | 广东美的暖通设备有限公司 | Outdoor unit control method and device of air conditioner and air conditioner |
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