CN115823712A - Control method for preventing air conditioner from being stopped by mistake and air conditioner - Google Patents
Control method for preventing air conditioner from being stopped by mistake and air conditioner Download PDFInfo
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- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 6
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- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
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- 238000012423 maintenance Methods 0.000 description 6
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention provides a control method for preventing an air conditioner from being stopped by mistake and the air conditioner, wherein the method comprises the following steps: acquiring temperature parameters of the air conditioner and shutdown conditions of the air conditioner, and calculating to obtain temperature difference parameters according to the temperature parameters; when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold value to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result; after the air conditioner is started to operate, judging whether the air conditioner needs to be stopped or not according to the adjusted stopping condition; wherein, the air conditioner is equipped with the sensor, and the sensor includes: the outer disc temperature sensor, the outer ring temperature sensor and the exhaust temperature sensor obtain the fault condition of the sensors according to the temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the fault condition. The invention solves the technical problem of the air conditioner error halt caused by the displacement or damage of the sensor, and realizes the technical effect of preventing the air conditioner error halt.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method for preventing an air conditioner from being stopped by mistake and an air conditioner.
Background
In the existing air conditioner, parameters such as outer ring temperature, outer disc temperature, exhaust temperature and the like are main conditions for judging whether the air conditioner normally operates, and the temperature parameters need to be acquired by corresponding temperature sensors in the use process of the air conditioner.
However, in an actual usage scenario, a temperature sensor may fail. For example, a temperature sensor on an air conditioner may be damaged, detached, displaced, etc., which may cause the temperature parameter obtained by the air conditioner to be inaccurate. When the temperature is too high due to the damage of the sensor, the shutdown condition of the air conditioner is triggered, so that the air conditioner is shut down by mistake, and the use of a user is influenced.
Disclosure of Invention
The invention solves the technical problem of the air conditioner error halt caused by the displacement or damage of the sensor, and realizes the technical effects of preventing the air conditioner from error halt and improving the use experience of users.
In order to solve the above problems, the present invention provides a control method for preventing an air conditioner from being stopped by mistake, comprising: acquiring temperature parameters of the air conditioner and shutdown conditions of the air conditioner, and calculating to obtain temperature difference parameters according to the temperature parameters; when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold value to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result; after the air conditioner is started to operate, judging whether the air conditioner needs to be stopped or not according to the adjusted stopping condition; wherein, the air conditioner is equipped with the sensor, and the sensor includes: the outer disc temperature sensor, the outer ring temperature sensor and the exhaust temperature sensor obtain the fault condition of the sensors according to the temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the fault condition.
Compared with the prior art, the technical scheme has the following technical effects: after obtaining the temperature parameter, the temperature difference parameter and the shutdown condition, executing step S200, comparing the magnitude relation between the temperature difference parameter and the temperature difference threshold value when the air conditioner is in the standby state to obtain a temperature difference comparison result, and controlling the air conditioner to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result. In step S200, the temperature difference parameter and the temperature difference threshold are compared to control the air conditioner because the temperature difference parameter can directly represent the temperature difference between the components of the air conditioner, and when the temperature difference parameter exceeds the reasonable threshold range, it indicates that a certain sensor of the air conditioner is damaged, and the temperature difference becomes large. Therefore, the corresponding sensor fault condition can be obtained according to the temperature difference comparison result, the probability of the air conditioner being shut down by mistake can be reduced after a certain specific sensor fault is judged, and the interference of the temperature sensor is greatly avoided.
In one example of the invention, the temperature parameters include: the temperature T1 of an outer disc of the air conditioner, the temperature T2 of an outer ring of the air conditioner and the exhaust temperature T3 of the air conditioner; the outer disc temperature sensor is used for acquiring the outer disc temperature T1 of the air conditioner, the outer ring temperature sensor is used for acquiring the outer ring temperature T2, and the exhaust temperature sensor is used for acquiring the exhaust temperature T3 of the air conditioner; the temperature difference parameters comprise: the temperature difference delta T1 of the outer ring of the outer disc, the exhaust temperature difference delta T2 of the outer disc and the exhaust temperature difference delta T3 of the outer ring.
Compared with the prior art, the technical scheme has the following technical effects: the plurality of temperature parameters are set to facilitate obtaining the temperature difference parameters, the diversity of the temperature parameters is improved, and the accuracy of judgment can be improved. And through the temperature parameters, the using state of the corresponding sensor can be obtained, and whether the sensor is damaged or not is judged.
In one example of the invention, the shutdown conditions include: a first shutdown condition, wherein the first shutdown condition is that the outer disc temperature T1 is greater than a first shutdown threshold; a second shutdown condition where the exhaust temperature T3 is greater than a second shutdown threshold; and when the air conditioner meets the first stop condition and/or the second stop condition, the air conditioner is stopped.
Compared with the prior art, the technical scheme has the following technical effects: the reason why the temperature comparison condition is selected as the shutdown condition is that the temperature parameter is easy to obtain, and the temperature parameter is also needed in the previous control step, so that the use parameter is single, the collection and the use are convenient, and the utilization rate of the parameter is high. Further, the outer disk temperature T1 and the exhaust temperature T3 are selected as parameters in the shutdown condition for comparison and determination, because the outer ring temperature T2 cannot be well determined in the parameter for determining whether the air conditioner needs to be shutdown, and the exhaust temperature T3 and the outer disk temperature T1 are more accurate.
In one embodiment of the present invention, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, the method includes: when the outer disc outer ring temperature difference delta T1 is larger than a temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is smaller than the temperature difference threshold value, a first temperature difference comparison result is obtained, and the outer disc temperature sensor is judged to be in fault; when the outer plate temperature sensor breaks down, controlling the air conditioner to ignore a first shutdown condition; when the outer disk temperature sensor fails, the second shutdown threshold is controlled to fall by the first target value.
Compared with the prior art, the technical effect achieved by adopting the technical scheme is as follows: by comparing the temperature difference parameter with the temperature difference threshold value, whether the sensor is damaged or not can be accurately judged, and the sensor which measures the temperature can be specifically pointed out. Therefore, the damaged sensor can be found more accurately, the subsequent maintenance is facilitated, and the air conditioner is prevented from being stopped by mistake by adjusting the stopping condition of the air conditioner subsequently.
In one embodiment of the present invention, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, the method includes: when the outer ring temperature difference delta T1 of the outer disc is greater than the temperature difference threshold value, the outer ring exhaust temperature difference delta T2 is less than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is greater than the temperature difference threshold value, a second temperature difference comparison result is obtained, and the outer ring temperature sensor is judged to be in fault; and when the outer ring temperature sensor fails, controlling the air conditioner to change the operation mode.
Compared with the prior art, the technical scheme has the following technical effects: by comparing the temperature difference parameter with the temperature difference threshold value, whether the sensor is damaged or not can be accurately judged, and the sensor which measures the temperature can be specifically pointed out. Therefore, the damaged sensor can be found more accurately, the subsequent maintenance is facilitated, and the air conditioner is prevented from being stopped by mistake by adjusting the stopping condition of the air conditioner subsequently.
In one example of the present invention, controlling the air conditioner to change the operation mode when the outer ring temperature sensor malfunctions includes: comparing the outer disc temperature T1 with a first temperature parameter threshold value and a second temperature parameter threshold value, and comparing the exhaust temperature T3 with a first temperature parameter threshold value and a second temperature parameter threshold value; if the temperature T1 of the outer disc is greater than the first temperature parameter threshold value and the exhaust temperature T3 is greater than the first temperature parameter threshold value, controlling the air conditioner to prohibit the use of the refrigeration mode; if the temperature T1 of the outer disc is smaller than the second temperature parameter threshold value and the exhaust temperature T3 is smaller than the second temperature parameter threshold value, controlling the air conditioner to forbid using the heating mode; and if the temperature T1 of the outer disc is greater than the second temperature parameter threshold and less than the first temperature parameter threshold, and the exhaust temperature T3 is greater than the second temperature parameter threshold and less than the first temperature parameter threshold, controlling the air conditioner to normally start and operate, and performing whether the air conditioner needs to be stopped according to the stop condition.
Compared with the prior art, the technical scheme has the following technical effects: the other temperature parameters are used for comparison, the existing outer loop temperature can be judged, and the air conditioner needs to be heated or cooled in the stage of occurrence is further judged, so that the air conditioner can be prevented from carrying out wrong operation modes, and the user experience is reduced.
In one embodiment of the present invention, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, the method includes: when the outer disc outer ring temperature difference delta T1 is smaller than a temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than a temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than a temperature difference threshold value, a third temperature difference comparison result is obtained, and the exhaust temperature sensor is judged to be in fault; when the exhaust temperature sensor fails, controlling the air conditioner to ignore a second shutdown condition; when the exhaust gas temperature sensor fails, the first stop threshold is controlled to decrease by the second target value.
Compared with the prior art, the technical scheme has the following technical effects: by comparing the temperature difference parameter with the temperature difference threshold value, whether the sensor is damaged or not can be accurately judged, and the sensor which measures the temperature can be specifically pointed out. Therefore, the damaged sensor can be found more accurately, the subsequent maintenance is facilitated, and the air conditioner is prevented from being stopped by mistake by adjusting the stopping condition of the air conditioner subsequently.
In one embodiment of the present invention, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, the method includes: when the outer disc outer ring temperature difference delta T1 is smaller than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is smaller than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is smaller than the temperature difference threshold value, a fourth temperature difference comparison result is obtained, and the unit of the air conditioner is judged to be normal; and when the unit of the air conditioner is judged to be normal, controlling the air conditioner to be normally started and operated.
Compared with the prior art, the technical scheme has the following technical effects: when the air conditioner is not in fault, the air conditioner is started to normally operate, and the shutdown condition and the operation mode of the air conditioner are not required to be adjusted.
In one embodiment of the present invention, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, the method includes: when the outer disc outer ring temperature difference delta T1 is larger than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than the temperature difference threshold value, a fifth temperature difference comparison result is obtained, and unit faults of the air conditioner are judged; and when the unit of the air conditioner is judged to be in fault, controlling the air conditioner to start and giving an alarm.
Compared with the prior art, the technical scheme has the following technical effects: when the delta T1 is more than 10 ℃, the delta T2 is more than 10 ℃ and the delta T3 is more than 10 ℃, the temperature difference between the outer ring of the outer disc exceeds 10 ℃, the temperature difference between the exhaust gases of the outer disc exceeds 10 ℃, and the temperature difference between the exhaust gases of the outer ring exceeds 10 ℃. The temperature detection result is unreasonable, the air conditioner unit is damaged, and if the air conditioner is started, the air conditioner can be automatically stopped. Therefore, an alarm needs to be issued after the air conditioner is turned on.
In still another aspect, there is provided an air conditioner using the control method according to any one of claims 1 to 9, the air conditioner including: an air conditioner body; the sensor comprises an outer disc temperature sensor, an outer ring temperature sensor and an exhaust temperature sensor; the outer plate temperature sensor is used for acquiring the outer plate temperature T1 of the air conditioner, the outer ring temperature sensor is used for acquiring the outer ring temperature T2, and the exhaust temperature sensor is used for acquiring the exhaust temperature T3 of the air conditioner.
Compared with the prior art, the technical scheme has the following technical effects: through set up a plurality of temperature sensor on the air conditioner body, can acquire the temperature parameter that this scheme needs, reach the purpose that prevents the air conditioner mistake and shut down.
Drawings
Fig. 1 is a flowchart of a control method for preventing an air conditioner from being shut down by mistake according to the present invention.
Fig. 2 is a second flowchart of a control method for preventing an air conditioner from being erroneously stopped according to the present invention.
Best mode for carrying out the invention
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The first embodiment is as follows:
in a specific embodiment, referring to fig. 1, the present disclosure provides a control method for preventing an air conditioner from being shut down by mistake, the method including:
step S100: acquiring temperature parameters of the air conditioner and shutdown conditions of the air conditioner, and calculating temperature difference parameters according to the temperature parameters;
step S200: when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold value to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result;
step S300: after the air conditioner is started to operate, judging whether the air conditioner needs to be stopped or not according to the adjusted stopping condition;
wherein, the air conditioner is equipped with the sensor, and the sensor includes: the outer disc temperature sensor, the outer ring temperature sensor and the exhaust temperature sensor obtain the fault condition of the sensors according to the temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the fault condition.
The temperature parameters include: the temperature T1 of an outer disc of the air conditioner, the temperature T2 of an outer ring of the air conditioner and the exhaust temperature T3 of the air conditioner;
the outer disc temperature sensor is used for acquiring the outer disc temperature T1 of the air conditioner, the outer ring temperature sensor is used for acquiring the outer ring temperature T2, and the exhaust temperature sensor is used for acquiring the exhaust temperature T3 of the air conditioner;
the temperature difference parameters comprise: the temperature difference delta T1 of the outer ring of the outer disc, the exhaust temperature difference delta T2 of the outer disc and the exhaust temperature difference delta T3 of the outer ring.
The shutdown conditions include:
a first shutdown condition, wherein the first shutdown condition is that the outer disc temperature T1 is greater than a first shutdown threshold;
a second shutdown condition where the exhaust temperature T3 is greater than a second shutdown threshold;
and when the air conditioner meets the first stop condition and/or the second stop condition, the air conditioner is stopped.
In this embodiment, the air conditioner is provided with a plurality of sensors, and the sensors are divided into an outer disk temperature sensor, an outer ring temperature sensor and an exhaust temperature sensor according to different temperatures to be measured. The outer disc temperature sensor is used for acquiring the outer disc temperature T1 of the air conditioner, the outer ring temperature sensor is used for acquiring the outer ring temperature T2, and the exhaust temperature sensor is used for acquiring the exhaust temperature T3 of the air conditioner. The temperature T1 of the outer disk of the air conditioner, the temperature T2 of the outer ring, and the temperature T3 of the exhaust of the air conditioner mentioned above are temperature parameters in the steps of the control method.
The plurality of temperature parameters are set to facilitate obtaining the temperature difference parameters, the diversity of the temperature parameters is improved, and the accuracy of judgment can be improved. And through the temperature parameters, the use state of the corresponding sensor can be obtained, and whether the sensor is damaged or not is judged.
According to the scheme, a plurality of different temperature parameters are obtained by using the temperature sensor, and the temperature difference parameter is calculated by using the temperature parameters. Specifically, the temperature difference parameters include: the temperature difference delta T1 of the outer ring of the outer disc, the exhaust temperature difference delta T2 of the outer disc and the exhaust temperature difference delta T3 of the outer ring. The outer disc and outer ring temperature difference delta T1 is the difference between the outer disc temperature T1 and the outer ring temperature T2 of the air conditioner; the outer disc exhaust temperature difference delta T2 is the difference between the outer disc temperature T1 of the air conditioner and the exhaust temperature T3 of the air conditioner; the outer ring exhaust temperature difference delta T3 is the difference between the outer ring temperature T2 and the exhaust temperature T3 of the air conditioner. The temperature difference parameters are obtained by subtracting the temperature parameters, and the temperature difference between the positions of the air conditioner can be visually obtained through the temperature difference parameters.
The scheme is a control method for preventing the air conditioner from being shut down by mistake, therefore, factors causing the air conditioner to be shut down by mistake are eliminated according to conditions such as temperature parameters, temperature difference parameters and the like, and after the factors causing the air conditioner to be shut down by mistake are eliminated, the air conditioner is continuously judged according to the shut-down conditions, and whether the air conditioner is shut down really due to the frequency or the temperature of a compressor or not is judged. The shutdown conditions include a first shutdown condition and a second shutdown condition, the shutdown conditions are specifically temperature comparison conditions, a corresponding first shutdown threshold value is compared with the outer disk temperature T1 for the first shutdown condition, and a corresponding second shutdown threshold value is compared with the exhaust gas temperature T3 for the second shutdown condition.
The reason that the temperature parameter is easy to obtain is that the temperature parameter is needed in the previous control step, the use parameter is single, the collection and the use are convenient, and the utilization rate of the parameter is high. Further, the outer disk temperature T1 and the exhaust temperature T3 are selected as parameters in the shutdown condition for comparison and determination, because the outer ring temperature T2 cannot be well determined in the parameter for determining whether the air conditioner needs to be shutdown, and the exhaust temperature T3 and the outer disk temperature T1 are more accurate.
Therefore, in the present disclosure, after obtaining the temperature parameter, the temperature difference parameter, and the shutdown condition, step S200 is executed, when the air conditioner is in the standby state, the temperature difference parameter is compared with the temperature difference threshold value to obtain a temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result. In step S200, the temperature difference parameter and the temperature difference threshold are compared to control the air conditioner because the temperature difference parameter can directly represent the temperature difference between the components of the air conditioner, and when the temperature difference parameter exceeds the reasonable threshold range, it indicates that a certain sensor of the air conditioner is damaged, and the temperature difference becomes large. Therefore, the corresponding sensor fault condition can be obtained according to the temperature difference comparison result, the probability of the air conditioner being shut down by mistake can be reduced after a certain specific sensor fault is judged, and the interference of the temperature sensor is greatly avoided.
The second embodiment:
in a specific embodiment, referring to fig. 2, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, including:
when the outer disc outer ring temperature difference delta T1 is larger than a temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is smaller than the temperature difference threshold value, a first temperature difference comparison result is obtained, and the outer disc temperature sensor is judged to be in fault;
when the outer plate temperature sensor has a fault, controlling the air conditioner to ignore a first shutdown condition;
and when the outer disk temperature sensor fails, controlling the second stop threshold value to be reduced by the first target value.
The temperature difference threshold is specifically 10 ℃.
In this embodiment, when Δ T1 > 10 ℃, Δ T2 > 10 ℃ and Δ T3 < 10 ℃, it means that the temperature difference between the outer ring of the outer disc exceeds 10 ℃, the temperature difference between the exhaust gases of the outer disc exceeds 10 ℃, and the temperature difference between the exhaust gases of the outer ring does not exceed 10 ℃. At the moment, the difference value between the temperature of the outer disc and the temperature of the outer ring can exceed 10 ℃, the difference value between the temperature of the outer disc and the temperature of the exhaust gas exceeds 10 ℃, but the difference value between the temperature of the outer ring and the temperature of the exhaust gas is less than 10 ℃, the temperature detection result is unreasonable, and the temperature detected by the temperature sensor of the outer disc is inaccurate, so that the temperature sensor of the outer disc is judged to be possibly failed, and the air conditioner is stopped by mistake.
When the control instruction of the air conditioner is adjusted, because the outer disk temperature sensor of the air conditioner is damaged, the previous first shutdown condition is inaccurate by using the outer disk temperature for comparison, and cannot be used as a judgment shutdown condition, so the first shutdown condition is ignored by the control and air conditioner.
In order to continuously judge whether the air conditioner needs to be stopped, the judgment of realization can be further carried out by utilizing a second stop condition. And in order to make the judgment result more accurate, the second stop threshold value is controlled to be reduced by a first target value, and the first target value is 5 ℃.
In the embodiment, by comparing the temperature difference parameter with the temperature difference threshold, whether the sensor is damaged or not can be accurately judged, and which temperature sensor is to be measured can be specifically indicated. Therefore, the damaged sensor can be found more accurately, the subsequent maintenance is facilitated, and the air conditioner is prevented from being stopped by mistake by adjusting the stopping condition of the air conditioner subsequently.
In a specific embodiment, referring to fig. 2, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, including:
when the outer ring temperature difference delta T1 of the outer disc is greater than the temperature difference threshold value, the outer ring exhaust temperature difference delta T2 is less than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is greater than the temperature difference threshold value, a second temperature difference comparison result is obtained, and the outer ring temperature sensor is judged to be in fault;
and when the outer ring temperature sensor fails, controlling the air conditioner to change the operation mode.
In this embodiment, when Δ T1 > 10 ℃, Δ T2 < 10 ℃ and Δ T3 > 10 ℃, it indicates that the temperature difference between the outer rings of the outer discs exceeds 10 ℃, the temperature difference between the exhaust gases of the outer discs does not exceed 10 ℃, and the temperature difference between the exhaust gases of the outer rings exceeds 10 ℃. At the moment, the difference value between the outer ring temperature and the exhaust temperature can exceed 10 ℃, the difference value between the outer disc temperature and the outer ring temperature exceeds 10 ℃, but the difference value between the outer disc temperature and the exhaust temperature is less than 10 ℃, the temperature detection result is unreasonable, and the temperature detected by the outer ring temperature sensor is inaccurate, so that the outer ring temperature sensor is judged to be possibly failed, and the air conditioner is stopped by mistake.
When the control instruction of the air conditioner is adjusted, because the outer ring temperature sensor of the air conditioner is damaged, the judgment of the air conditioner on the outdoor environment is not accurate, and unnecessary refrigeration or heating is possibly caused. Therefore, the operation mode of the air conditioner needs to be adjusted.
Referring to fig. 2, when the outer ring temperature sensor fails, the specific adjustment method for controlling the air conditioner to change the operation mode includes:
comparing the outer disc temperature T1 with a first temperature parameter threshold value and a second temperature parameter threshold value, and comparing the exhaust temperature T3 with a first temperature parameter threshold value and a second temperature parameter threshold value;
if the temperature T1 of the outer disc is larger than the first temperature parameter threshold value and the exhaust temperature T3 is larger than the first temperature parameter threshold value, controlling the air conditioner to forbid using the refrigeration mode;
if the temperature T1 of the outer disc is smaller than the second temperature parameter threshold value and the exhaust temperature T3 is smaller than the second temperature parameter threshold value, controlling the air conditioner to forbid using the heating mode;
and if the temperature T1 of the outer disc is greater than the second temperature parameter threshold and less than the first temperature parameter threshold, and the exhaust temperature T3 is greater than the second temperature parameter threshold and less than the first temperature parameter threshold, controlling the air conditioner to normally start and operate, and performing whether the air conditioner needs to be stopped according to the stop condition.
In the present embodiment, when it is determined that the outer ring temperature sensor is damaged, it indicates that the outer ring temperature has been inaccurate, and thus the air conditioner is controlled to perform the heating mode and the cooling mode using the outer disc temperature T1 and the discharge temperature T3.
Wherein the first temperature parameter threshold is 60 ℃ and the second temperature parameter threshold is-25 ℃.
When T1 is higher than 60 ℃ and T3 is higher than 60 ℃, the temperature of the outdoor unit of the air conditioner is higher, and the temperature of the outer ring is lower according to the heat exchange distance of the outdoor unit of the air conditioner, so that the air conditioner is controlled to forbid refrigeration starting.
When T1 is less than-25 ℃ and T3 is less than-25 ℃, the temperature of the outdoor unit of the air conditioner is low, and the temperature of the outer ring is high according to the heat exchange distance of the outdoor unit of the air conditioner, so that the air conditioner is controlled to forbid heating and starting.
When T1 is more than or equal to minus 25 ℃ and less than or equal to 60 ℃ and T3 is more than or equal to minus 25 ℃ and less than or equal to 60 ℃, the temperature of the outdoor unit of the air conditioner is stable, the temperature of the outer ring is not extremely cold or extremely hot, so that the operation mode of the air conditioner is not required to be forbidden, and the air conditioner can operate in both refrigeration and heating, so that the air conditioner is controlled to be started at the moment.
Also, in this case, since the shutdown condition is independent of the outer ring temperature T2, the shutdown condition does not need to be changed.
In this embodiment, by comparing the temperature difference parameter with the temperature difference threshold, it can be accurately determined whether the sensor is damaged, and it can be specifically indicated which temperature sensor is to be measured. Therefore, the damaged sensor can be found more accurately, the subsequent maintenance is facilitated, and the air conditioner is prevented from being shut down by mistake by adjusting the shutdown condition of the air conditioner subsequently.
Furthermore, the other temperature parameters are used for comparison, the existing outer loop temperature can be judged, and the air conditioner needs to be heated or cooled in the stage of occurrence is further judged, so that the air conditioner can be prevented from carrying out wrong operation modes, and the user experience is reduced.
In a specific embodiment, referring to fig. 2, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, including:
when the outer disc outer ring temperature difference delta T1 is smaller than a temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than the temperature difference threshold value, a third temperature difference comparison result is obtained, and the exhaust temperature sensor is judged to be in fault;
when the exhaust temperature sensor fails, controlling the air conditioner to ignore a second shutdown condition;
when the exhaust gas temperature sensor fails, the first stop threshold is controlled to decrease by the second target value.
In this embodiment, when Δ T1 is less than 10 ℃, Δ T2 is greater than 10 ℃, and Δ T3 is greater than 10 ℃, it indicates that the temperature difference between the outer rings of the outer discs does not exceed 10 ℃, the temperature difference between the exhaust gases of the outer discs exceeds 10 ℃, and the temperature difference between the exhaust gases of the outer rings exceeds 10 ℃. The temperature detection result is unreasonable, the temperature measured by the exhaust temperature sensor is inaccurate, and the exhaust temperature sensor is judged to be possibly broken down, so that the air conditioner is stopped by mistake.
When the control instruction of the air conditioner is adjusted, because the exhaust temperature sensor of the air conditioner is damaged, the previous second shutdown condition is inaccurate, and the method for comparing the exhaust temperature is not used as a judgment shutdown condition, so the control and air conditioner ignores the second shutdown condition.
In order to continuously judge whether the air conditioner needs to be stopped or not, the first stop condition can be used for judging the realization. And in order to make the judgment result more accurate, the first shutdown threshold is controlled to be reduced by a second target value, and the first target value is 2 ℃.
In this embodiment, by comparing the temperature difference parameter with the temperature difference threshold, it can be accurately determined whether the sensor is damaged, and it can be specifically indicated which temperature sensor is to be measured. Therefore, the damaged sensor can be found more accurately, the subsequent maintenance is facilitated, and the air conditioner is prevented from being stopped by mistake by adjusting the stopping condition of the air conditioner subsequently.
In a specific embodiment, referring to fig. 2, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, including:
when the outer disc outer ring temperature difference delta T1 is smaller than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is smaller than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is smaller than the temperature difference threshold value, a fourth temperature difference comparison result is obtained, and the unit of the air conditioner is judged to be normal;
and when the unit of the air conditioner is judged to be normal, controlling the air conditioner to be normally started and operated.
In this example, when Δ T1 is less than 10 ℃, Δ T2 is less than 10 ℃, and Δ T3 is less than 10 ℃, it indicates that the temperature difference between the outer rings of the outer discs does not exceed 10 ℃, the temperature difference between the exhaust gases of the outer discs does not exceed 10 ℃, and the temperature difference between the exhaust gases of the outer rings does not exceed 10 ℃. The temperature detection result is reasonable, which shows that the temperature measured by the temperature sensor is accurate and the temperature sensor does not have faults.
When the air conditioner is not in fault, the air conditioner is started to normally operate, and the shutdown condition and the operation mode of the air conditioner are not required to be adjusted.
In a specific embodiment, referring to fig. 2, when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold to obtain a temperature difference comparison result, and controlling the air conditioner to adjust a shutdown condition and an operation mode of the air conditioner according to the temperature difference comparison result, including:
when the outer disc outer ring temperature difference delta T1 is larger than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than the temperature difference threshold value, a fifth temperature difference comparison result is obtained, and unit faults of the air conditioner are judged;
and when the unit of the air conditioner is judged to be in fault, controlling the air conditioner to start and giving an alarm.
In this embodiment, when Δ T1 > 10 ℃, Δ T2 > 10 ℃ and Δ T3 > 10 ℃, it means that the temperature difference between the outer rings of the outer discs exceeds 10 ℃, the temperature difference between the exhaust gases of the outer discs exceeds 10 ℃, and the temperature difference between the exhaust gases of the outer rings exceeds 10 ℃. The temperature detection result is unreasonable, the air conditioner unit is damaged, and if the air conditioner is started, the air conditioner can be automatically stopped. Therefore, an alarm needs to be issued after the air conditioner is turned on.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A control method for preventing an air conditioner from being shut down by mistake, the method comprising:
acquiring a temperature parameter of an air conditioner and a shutdown condition of the air conditioner, and calculating to obtain a temperature difference parameter according to the temperature parameter;
when the air conditioner is in a standby state, comparing the temperature difference parameter with a temperature difference threshold value to obtain a temperature difference comparison result, and controlling the air conditioner to adjust the shutdown condition and the running mode of the air conditioner according to the temperature difference comparison result;
after the air conditioner is started to operate, judging whether the air conditioner needs to be stopped or not according to the adjusted stopping condition;
wherein, the air conditioner is equipped with the sensor, the sensor includes: the outer disc temperature sensor, the outer ring temperature sensor and the exhaust temperature sensor obtain the fault condition of the sensors according to the temperature difference comparison result, and control the air conditioner to adjust the shutdown condition and the operation mode of the air conditioner according to the fault condition.
2. The control method for preventing the air conditioner from being erroneously stopped according to claim 1,
the temperature parameters include: the temperature T1 of an outer disc of the air conditioner, the temperature T2 of an outer ring of the air conditioner and the exhaust temperature T3 of the air conditioner;
the outer disc temperature sensor is used for acquiring the outer disc temperature T1 of the air conditioner, the outer ring temperature sensor is used for acquiring the outer ring temperature T2, and the exhaust temperature sensor is used for acquiring the exhaust temperature T3 of the air conditioner;
the temperature difference parameters comprise: the temperature difference delta T1 of the outer ring of the outer disc, the exhaust temperature difference delta T2 of the outer disc and the exhaust temperature difference delta T3 of the outer ring.
3. The control method for preventing the false shutdown of the air conditioner according to claim 2, wherein the shutdown condition includes:
a first shutdown condition that the outer disc temperature T1 is greater than the first shutdown threshold;
a second shutdown condition that the exhaust temperature T3 is greater than the second shutdown threshold;
wherein the air conditioner is shut down when the air conditioner satisfies the first shut down condition and/or the second shut down condition.
4. The control method for preventing the air conditioner from being shut down mistakenly according to claim 3, wherein when the air conditioner is in a standby state, the temperature difference parameter is compared with a temperature difference threshold value to obtain a temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result, and the method comprises the following steps:
when the outer disc outer ring temperature difference delta T1 is larger than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is smaller than the temperature difference threshold value, obtaining a first temperature difference comparison result, and judging that the outer disc temperature sensor has a fault;
when the outer plate temperature sensor fails, controlling the air conditioner to ignore the first stop condition;
and when the outer disk temperature sensor fails, controlling the second shutdown threshold value to be reduced by a first target value.
5. The control method for preventing the air conditioner from being shut down mistakenly according to claim 3, wherein when the air conditioner is in a standby state, the temperature difference parameter is compared with a temperature difference threshold value to obtain a temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result, and the method comprises the following steps:
when the outer disc outer ring temperature difference delta T1 is larger than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is smaller than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than the temperature difference threshold value, a second temperature difference comparison result is obtained, and the outer ring temperature sensor is judged to be in fault;
and when the outer ring temperature sensor has a fault, controlling the air conditioner to change the operation mode.
6. The control method for preventing the air conditioner from being shut down mistakenly according to claim 5, wherein the controlling the air conditioner to change the operation mode when the outer ring temperature sensor fails comprises:
comparing the outer disc temperature T1 with a first temperature parameter threshold value and a second temperature parameter threshold value, and comparing the exhaust temperature T3 with the first temperature parameter threshold value and the second temperature parameter threshold value;
if the outer disc temperature T1 is greater than the first temperature parameter threshold value and the exhaust temperature T3 is greater than the first temperature parameter threshold value, controlling the air conditioner to prohibit the use of a refrigeration mode;
if the outer disc temperature T1 is smaller than the second temperature parameter threshold value and the exhaust temperature T3 is smaller than the second temperature parameter threshold value, controlling the air conditioner to prohibit the use of a heating mode;
and if the outer disc temperature T1 is greater than the second temperature parameter threshold and less than the first temperature parameter threshold, and the exhaust temperature T3 is greater than the second temperature parameter threshold and less than the first temperature parameter threshold, controlling the air conditioner to normally start and operate, and performing whether the air conditioner needs to be stopped according to the stop condition.
7. The control method for preventing the air conditioner from being shut down mistakenly according to claim 3, wherein when the air conditioner is in a standby state, the temperature difference parameter is compared with a temperature difference threshold value to obtain a temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result, and the method comprises the following steps:
when the outer disc outer ring temperature difference delta T1 is smaller than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than the temperature difference threshold value, a third temperature difference comparison result is obtained, and the exhaust temperature sensor is judged to be in fault;
controlling the air conditioner to ignore the second shutdown condition when the exhaust temperature sensor fails;
when the exhaust gas temperature sensor fails, the first shutdown threshold is controlled to decrease by a second target value.
8. The control method for preventing the air conditioner from being shut down mistakenly according to claim 3, wherein when the air conditioner is in a standby state, the temperature difference parameter is compared with a temperature difference threshold value to obtain a temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result, and the method comprises the following steps:
when the outer disc outer ring temperature difference delta T1 is smaller than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is smaller than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is smaller than the temperature difference threshold value, a fourth temperature difference comparison result is obtained, and the unit of the air conditioner is judged to be normal;
and when the unit of the air conditioner is judged to be normal, controlling the air conditioner to be normally started and operated.
9. The control method for preventing the air conditioner from being shut down mistakenly according to claim 3, wherein when the air conditioner is in a standby state, the temperature difference parameter is compared with a temperature difference threshold value to obtain a temperature difference comparison result, and the air conditioner is controlled to adjust the shutdown condition and the operation mode of the air conditioner according to the temperature difference comparison result, and the method comprises the following steps:
when the outer disc outer ring temperature difference delta T1 is larger than the temperature difference threshold value, the outer disc exhaust temperature difference delta T2 is larger than the temperature difference threshold value, and the outer ring exhaust temperature difference delta T3 is larger than the temperature difference threshold value, a fifth temperature difference comparison result is obtained, and unit faults of the air conditioner are judged;
and when the unit of the air conditioner is judged to be in fault, controlling the air conditioner to start and giving an alarm.
10. An air conditioner characterized by using the control method according to any one of claims 1 to 9, comprising:
an air conditioner body;
the sensor comprises an outer disc temperature sensor, an outer ring temperature sensor and an exhaust temperature sensor;
the outer disc temperature sensor is used for acquiring the outer disc temperature T1 of the air conditioner, the outer ring temperature sensor is used for acquiring the outer ring temperature T2, and the exhaust temperature sensor is used for acquiring the exhaust temperature T3 of the air conditioner.
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