CN118043604A - Air conditioner and control method thereof - Google Patents

Air conditioner and control method thereof Download PDF

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Publication number
CN118043604A
CN118043604A CN202280064045.8A CN202280064045A CN118043604A CN 118043604 A CN118043604 A CN 118043604A CN 202280064045 A CN202280064045 A CN 202280064045A CN 118043604 A CN118043604 A CN 118043604A
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CN
China
Prior art keywords
temperature
temperature sensor
detected
compressor
threshold
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202280064045.8A
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Chinese (zh)
Inventor
王新民
彭琪
吴民安
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Guangdong Air Conditioning Co Ltd
Original Assignee
Hisense Guangdong Air Conditioning Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Guangdong Air Conditioning Co Ltd filed Critical Hisense Guangdong Air Conditioning Co Ltd
Publication of CN118043604A publication Critical patent/CN118043604A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/38—Failure diagnosis
    • 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
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

An air conditioner comprises a compressor and an ambient temperature sensor. And a temperature sensor to be detected and a controller. The ambient temperature sensor is configured to detect an ambient temperature of the compressor in a standby state prior to an operating state; the temperature sensor to be detected is configured to detect a first current temperature of a corresponding region when the compressor is in an operating state, and has an allowable measurement interval including a first threshold and a second threshold. The controller is configured to: acquiring a first temperature, wherein the first temperature is obtained according to the ambient temperature; acquiring a second temperature, wherein the second temperature is obtained according to the first current temperature; and when the compressor is in an operating state, determining that the temperature sensor to be detected has a fault in response to the first temperature being greater than or equal to the preset reference temperature and in response to the second temperature being less than a first threshold or greater than a second threshold.

Description

Air conditioner and control method thereof
The present application claims priority from the chinese patent application No. 202111417244.6 filed 11/25 in 2021, the entire contents of which are incorporated herein by reference.
Technical Field
The disclosure relates to the technical field of air conditioners, and in particular relates to an air conditioner and a control method of the air conditioner.
Background
In general, an air conditioner has a plurality of temperature sensors, each of which can detect a temperature of a corresponding area, for example, an outdoor environment temperature sensor can detect a temperature of an outdoor environment. The temperature detected by each temperature sensor can play a role in monitoring the operation state of the air conditioner, so whether the temperature sensor operates normally or not plays an important role in the air conditioner.
Disclosure of Invention
In one aspect, an air conditioner is provided. The air conditioner comprises a compressor, an ambient temperature sensor, a temperature sensor to be detected and a controller. Wherein the ambient temperature sensor is configured to detect an ambient temperature of the compressor in a standby state prior to an operating state; the temperature sensor to be detected is configured to detect a first current temperature of a corresponding region of the compressor at the operating state. The temperature sensor to be detected has an allowable measurement interval including a first threshold and a second threshold, and the first threshold is smaller than the second threshold. The controller is coupled to the ambient temperature sensor, the temperature sensor to be detected, and the compressor, and is configured to: acquiring a first temperature, wherein the first temperature is obtained according to the ambient temperature; and acquiring a second temperature, wherein the second temperature is obtained according to the first current temperature. When the compressor is in an operating state, determining a temperature sensor fault to be detected in response to the first temperature being greater than or equal to a preset reference temperature and in response to the second temperature being less than a first threshold or greater than a second threshold; or the first temperature is larger than or equal to a preset reference temperature, and the second temperature is larger than or equal to a first threshold value and smaller than or equal to a second threshold value, so that the temperature sensor to be detected is determined to be normal.
In another aspect, a control method of an air conditioner is provided. The air conditioner comprises a compressor, an ambient temperature sensor, a temperature sensor to be detected and a controller. The environment temperature sensor is used for detecting the environment temperature of the compressor in a standby state before the running state; the temperature sensor to be detected is used for detecting a first current temperature of a corresponding area of the compressor in the running state. The temperature sensor to be detected has an allowable measurement interval including a first threshold and a second threshold, and the first threshold is smaller than the second threshold. The control method of the air conditioner comprises the following steps: a first temperature is obtained, the first temperature being based on an ambient temperature. A second temperature is obtained, the second temperature being derived from the first current temperature. When the compressor is in the running state, determining that a temperature sensor to be detected has a fault in response to the first temperature being greater than or equal to a preset reference temperature and in response to the second temperature being less than a first threshold or greater than a second threshold; or the first temperature is larger than or equal to a preset reference temperature, and the second temperature is larger than or equal to a first threshold value and smaller than or equal to a second threshold value, so that the temperature sensor to be detected is determined to be normal.
Drawings
In order to more clearly illustrate the technical solutions of the present disclosure, the drawings that need to be used in some embodiments of the present disclosure will be briefly described below, and it is apparent that the drawings in the following description are only drawings of some embodiments of the present disclosure, and other drawings may be obtained according to these drawings to those of ordinary skill in the art. Furthermore, the figures in the following description may be regarded as schematic drawings, without limiting the actual size of the products, the actual flow of the methods, the actual timing of the signals, etc., according to some embodiments of the present disclosure.
Fig. 1 is a block diagram of an air conditioner according to some embodiments of the present disclosure;
FIG. 2 is a schematic diagram of an air conditioner according to some embodiments of the present disclosure;
FIG. 3 is a schematic view of another air conditioner according to some embodiments of the present disclosure;
Fig. 4 is a flowchart of a control method of an air conditioner according to some embodiments of the present disclosure;
fig. 5 is a flowchart of another control method of an air conditioner according to some embodiments of the present disclosure;
Fig. 6 is a flowchart of a control method of yet another air conditioner according to some embodiments of the present disclosure;
Fig. 7 is a flowchart of a control method of yet another air conditioner according to some embodiments of the present disclosure.
Detailed Description
The following description of the embodiments of the present disclosure will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by one of ordinary skill in the art based on the embodiments provided by the present disclosure are within the scope of the present disclosure.
Throughout the specification and claims, unless the context requires otherwise, the word "comprise" and its other forms such as the third person referring to the singular form "comprise" and the present word "comprising" are to be construed as open, inclusive meaning, i.e. as "comprising, but not limited to. In the description of the specification, the terms "one embodiment", "some embodiments (some embodiments)", "exemplary embodiment (exemplary embodiments)", "example (example)", "specific example (some examples)", etc. are intended to indicate that a particular feature, structure, material, or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of some embodiments of the disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.
In describing some embodiments, expressions of "coupled" and "connected" and their derivatives may be used. The term "coupled" is to be interpreted broadly, as for example, the term "coupled" may be a fixed connection, a removable connection, or a combination thereof; either directly or indirectly via an intermediary. The term "coupled" is used to indicate that two or more elements are in direct physical or electrical contact. However, the term "coupled" or "communicatively coupled (communicatively coupled)" may also mean that two or more elements are not in direct contact with each other, but yet still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the disclosure herein.
At least one of "A, B and C" has the same meaning as at least one of "A, B or C" and includes the following combinations of A, B and C: a alone, B alone, C alone, a combination of a and B, a combination of a and C, a combination of B and C, and a combination of A, B and C.
"A and/or B" includes the following three combinations: only a, only B, and combinations of a and B.
As used herein, the term "if" is optionally interpreted to mean "when … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if determined … …" or "if a [ stated condition or event ] is detected" is optionally interpreted to mean "upon determination … …" or "in response to determination … …" or "upon detection of a [ stated condition or event ]" or "in response to detection of a [ stated condition or event ], depending on the context.
The use of "adapted" or "configured to" herein is meant to be open and inclusive and does not exclude devices adapted or configured to perform additional tasks or steps.
In addition, the use of "based on" is intended to be open and inclusive in that a process, step, calculation, or other action "based on" one or more of the stated conditions or values may be based on additional conditions or beyond the stated values in practice.
When the temperature of the environment (e.g., outdoor environment) in which the air conditioner is located is low, for example, when the outdoor environment temperature is lower than-30 ℃ (also referred to as-30 ℃), a resistance error of a temperature sensor provided on the air conditioner, particularly, a temperature sensor provided in an outdoor unit of the air conditioner, may be large, thereby resulting in a large measurement error of the temperature sensor. In some examples, as the ambient temperature decreases, the resistance error of the temperature sensor increases, and the measurement accuracy of the temperature sensor decreases, in which case there may be a larger error between the temperature detected by the temperature sensor and the actual temperature.
Since the detection result of the temperature sensor can monitor the operation state of the air conditioner, whether the temperature sensor operates normally or not plays an important role in the normal operation of the air conditioner. In the related art, a method of judging whether a temperature sensor is malfunctioning may be determined by directly judging whether a detected temperature of the temperature sensor is within an allowable measurement interval of the temperature sensor. If the detected temperature of the temperature sensor is not within the allowable measurement range, the temperature sensor is judged to be faulty.
However, the reliability of the fault judging method is poor, and erroneous judgment is easily caused. For example, when the outdoor environment temperature is lower than-30 ℃, some temperature sensors can still work normally, but the measurement accuracy of the temperature sensor can be affected by the lower outdoor environment temperature, so that the measurement error of the temperature sensor becomes large, and the detected temperature exceeds the allowable measurement range. In this case, the temperature sensor does not actually fail, but the detection result exceeds the allowable measurement range due to the influence of the outdoor ambient temperature on the measurement accuracy, if the temperature sensor is determined to be failed according to the method in the related art, the misjudgment occurs, and the misjudgment on the failure condition of the temperature sensor affects the operation of the air conditioner, thereby reducing the user experience.
Therefore, some embodiments of the present disclosure provide an air conditioner, which first determines a measurement error condition of a temperature sensor, and then determines whether the temperature sensor is faulty by determining whether a measurement result of the temperature sensor is in an allowable measurement interval when the measurement error meets a relevant condition, that is, when the measurement error does not affect the measurement of the temperature sensor, so as to reduce a fault misjudgment probability of the temperature sensor.
Fig. 1 is a block diagram of an air conditioner according to some embodiments of the present disclosure. As shown in fig. 1, the air conditioner 1 includes a controller 10, a plurality of temperature sensors 20, and a compressor 30.
Illustratively, the air conditioner 1 includes an indoor unit 100 and an outdoor unit 200, wherein the compressor 30 may be disposed in the outdoor unit 200 and configured to: operating in an operational state or a standby state. The compressor 30 is switched between an operation state and a standby state to achieve heating or cooling of the air conditioner 1.
It should be noted that the controller 10 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (DIGITAL SIGNAL processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The controller 10 may also be other devices having processing functions, such as a circuit, device or software module, which is not limited by the present disclosure.
In some examples, as shown in fig. 1, the controller 10 may include a first controller 11 and a second controller 12, wherein the first controller 11 may be disposed in the indoor unit 100, the second controller 12 may be disposed in the outdoor unit 200, the first controller 11 may be coupled to the second controller 12, and information may be transferred between the first controller 11 and the second controller 12.
As shown in fig. 1, the indoor unit 100 further includes a first heat exchanger 101, the outdoor unit 200 further includes a second heat exchanger 201, the first heat exchanger 101 is coupled to the first controller 11, and the second heat exchanger 201 is coupled to the second controller 12.
In some embodiments, each of the plurality of temperature sensors 20 may be provided in the indoor unit 100 or the outdoor unit 200. As shown in fig. 1, the plurality of temperature sensors 20 may include a temperature sensor to be detected 21 and an ambient temperature sensor 22. That is, the temperature sensor 21 to be detected may be any one of the plurality of temperature sensors 20. In some examples, the temperature sensor 21 to be detected and the ambient temperature sensor 22 may also be the same temperature sensor. Some embodiments of the present disclosure will be described taking an example in which the temperature sensor 21 to be detected and the ambient temperature sensor 22 are provided in the outdoor unit 200 (see fig. 1).
In some embodiments, as shown in fig. 2, the temperature sensor 21 to be detected may be an ambient temperature sensor 22, a heat exchanger temperature sensor 23, or a compressor discharge temperature sensor 24. Wherein the ambient temperature sensor 22 may include a first ambient temperature sensor 221 and a second ambient temperature sensor 222, and the heat exchanger temperature sensor 23 includes a first heat exchanger temperature sensor 231 and a second heat exchanger temperature sensor 232.
In some examples, a first ambient temperature sensor (also referred to as an indoor ambient temperature sensor) 221 and a first heat exchanger temperature sensor 231 may be provided in the indoor unit 100, respectively coupled with the first controller 11. A second ambient temperature sensor 222, a second heat exchanger temperature sensor 232, and a compressor discharge temperature sensor 24 may be disposed in the outdoor unit 200, respectively coupled to the second controller 12.
The temperature sensor to be detected 21 is configured to detect an ambient temperature at a standby state of the compressor 30 before an operation state. Wherein the temperature sensor 21 to be detected has an allowable measurement interval including a first threshold and a second threshold, and the first threshold is smaller than the second threshold.
In some examples, as shown in fig. 2, the temperature sensor 21 to be detected may be any one of a first ambient temperature sensor 221, a first heat exchanger temperature sensor 231, a second ambient temperature sensor 222, a second heat exchanger temperature sensor 232, and a compressor discharge temperature sensor 24. The temperature sensor 21 to be detected determines its corresponding area according to the setting position thereof, and the setting position of the temperature sensor 21 to be detected may be different, and the corresponding area may be different.
In some examples, when the installation position of the temperature sensor 21 to be detected is in the indoor unit 100, the corresponding area thereof is some area in the indoor unit 100. For example, the area corresponding to the first ambient temperature sensor 221 is an area where the indoor unit 100 is located (also referred to as an indoor environment), and the first ambient temperature sensor 221 is configured to detect a temperature of the indoor environment; the first heat exchanger temperature sensor 231 is disposed on the indoor heat exchanger 101, and the corresponding area is a coil area of the indoor heat exchanger 101, and the first heat exchanger temperature sensor 231 is configured to detect a coil temperature (also referred to as an inner coil temperature) of the indoor heat exchanger 101.
In other examples, when the temperature sensor 21 to be detected is installed in the outdoor unit 200, the corresponding area is some areas of the outdoor unit 100. For example, the area corresponding to the second ambient temperature sensor 222 is an area where the outdoor unit 200 is located (also referred to as an outdoor environment), and the second ambient temperature sensor 222 is configured to detect the temperature of the outdoor environment; the second heat exchanger temperature sensor 232 is disposed on the outdoor heat exchanger 201, and the corresponding area thereof is a coil area of the outdoor heat exchanger 201, and the second heat exchanger temperature sensor 232 is used for detecting a coil temperature (also referred to as an outer coil temperature) of the outdoor heat exchanger 201; the compressor discharge temperature sensor 24 is disposed on a discharge pipe of the compressor 30, and a corresponding area thereof is a discharge port of the compressor 30, and the compressor discharge temperature sensor 24 is used for detecting a discharge temperature of the compressor 30.
Illustratively, the allowable measurement range of the temperature sensor to be detected 21 may be a temperature range that the temperature sensor to be detected 21 can measure, the allowable measurement range is related to a physical characteristic of the temperature sensor to be detected 21, for example, the allowable measurement range may be determined by a resistance in the temperature sensor to be detected 21.
In some examples, the allowable measurement interval of the temperature sensor to be detected 21 may be composed of a first threshold value, which may be a minimum temperature that can be measured by the temperature sensor to be detected 21, and a second threshold value, which may be a maximum temperature that can be measured by the temperature sensor to be detected 21, the first threshold value being smaller than the second threshold value. For example, when the allowable measurement range of the temperature sensor 21 to be detected is-40 ℃ to 110 ℃, it is indicated that the temperature sensor 21 to be detected can detect is a temperature that is greater than or equal to-40 ℃ and less than or equal to 110 ℃, wherein, -40 ℃ is a first threshold value of the allowable measurement range thereof, and 110 ℃ is a second threshold value of the allowable measurement range thereof.
The ambient temperature sensor 22 is configured to detect an ambient temperature of the compressor 30 in a standby state prior to an operating state. For example, when the ambient temperature sensor 22 is the first ambient temperature sensor 221, it detects the temperature of the indoor environment, and when the ambient temperature sensor 22 is the second ambient temperature sensor 222, it detects the temperature of the outdoor environment.
The ambient temperature is related to the operating condition of the compressor 30. Since the compressor 30 may generate heat during operation, the heat is transferred to the environment by means of heat sensing or heat radiation, thereby affecting the ambient temperature, for example, the ambient temperature may be increased. In this case, the ambient temperature detected by the ambient temperature sensor 22 may not be the actual ambient temperature. When the compressor 30 is in the standby state, the compressor 30 is stopped, so that the ambient temperature is not affected, and the ambient temperature detected by the ambient temperature sensor 22 is closer to the actual ambient temperature.
In some examples, the standby state prior to the current operating state of the compressor 30 may be the most recent standby state prior to the current operating state of the compressor 30. Since the time from the end time of the latest standby state before the current operating state to the current time of the operating state is short, it can be considered that the ambient temperature remains stable in this process, and thus the ambient temperature detected by the ambient temperature sensor 22 in the latest standby state is closer to the ambient temperature in the current operating state.
The controller 10 is configured to: acquiring a first temperature; acquiring a second temperature; determining that the temperature sensor 21 to be detected is faulty in response to the first temperature being greater than or equal to a preset reference temperature and in response to the second temperature being less than the first threshold or greater than a second threshold while the compressor 30 is in an operating state; or the temperature sensor 21 to be detected is determined to be normal in response to the first temperature being greater than or equal to a preset reference temperature and in response to the second temperature being greater than or equal to a first threshold and less than or equal to a second threshold. Wherein the first temperature is derived from an ambient temperature; the second temperature is derived from the first current temperature.
In some examples, the ambient temperature sensor 22 sends the ambient temperature detected by the ambient temperature sensor to the controller 10, the temperature sensor 21 to be detected also sends the first current temperature detected by the ambient temperature sensor to the controller 10, and the controller 10 obtains the first temperature, obtains the second temperature after obtaining the first current temperature.
As can be seen from the above embodiments, the ambient temperature affects the measurement accuracy of the temperature sensor 21 to be detected. The preset reference temperature may be, for example, a lower limit of an ambient temperature (e.g., an outdoor ambient temperature) that ensures that an error generated in the measurement of the temperature sensor 21 to be detected does not affect the measurement result thereof. That is, when the ambient temperature is higher than or equal to the preset reference temperature, the measurement accuracy of the temperature sensor 21 to be detected is high, the measurement error is small, and the measurement error does not affect the detection result thereof; when the ambient temperature is lower than the preset reference temperature, the measurement accuracy of the temperature sensor 21 to be detected is low, and the measurement error is large, and the measurement error may affect the detection result. Accordingly, some embodiments of the present disclosure obtain an error condition of the measurement result of the temperature sensor 21 to be detected through comparison of the ambient temperature with a preset reference temperature.
For example, the preset reference temperature may be related to the resistance of the temperature sensor 21 to be detected. When the ambient temperature changes, the resistance value of the temperature sensor 21 to be detected also changes, and in some examples, the resistance deviation of the temperature sensor 21 to be detected changes with the change of the ambient temperature, for example, the resistance deviation of the temperature sensor 21 to be detected increases with the decrease of the ambient temperature, and the measurement error of the temperature sensor 21 to be detected also increases with the increase of the resistance deviation of the temperature sensor 21 to be detected, thereby affecting the detection result of the temperature sensor 21 to be detected.
For example, when the ambient temperature is lower than-30 ℃, the resistance deviation of the temperature sensor 21 to be detected increases faster, resulting in an increase in the measurement error of the temperature sensor 21 to be detected; when the ambient temperature is higher than-30 ℃, such as when the ambient temperature reaches-25 ℃, the resistance deviation of the temperature sensor 21 to be detected increases slowly, and at this time, the resistance deviation of the temperature sensor 21 to be detected is already small, so that the measurement error thereof can be ignored. Thus, -25 ℃ can be used as a preset reference temperature for the temperature sensor 21 to be detected.
It should be noted that the preset reference temperature of each temperature sensor 21 to be detected may be the same or different. Some embodiments of the present disclosure will be described taking the same preset reference temperature of each temperature sensor 21 to be detected as an example. For example, the preset reference temperature of each temperature sensor 21 to be detected may be-25 ℃.
In some embodiments, as shown in fig. 3, the air conditioner 1 may further include a memory 40. The allowable measurement interval corresponding to the temperature sensor 21 to be detected and a preset reference temperature may be stored in the memory 40; or may be stored in the controller 10. For example, the memory 40 may include a first memory 41 and a second memory 42. Wherein, the first memory 41 is coupled with the first controller 11, and the second memory 42 is coupled with the second controller 12.
As shown in fig. 1, the compressor 30 is coupled to the second controller 12. The second controller 12 may obtain the current operating state of the compressor 30. When the controller 10 (e.g. the second controller 12) determines that the compressor 30 is in an operating state, the controller 10 determines a measurement error condition of the temperature sensor 21 to be detected according to the relationship between the first temperature and the preset reference temperature.
After the controller 10 acquires the first temperature, the first temperature is compared with a preset reference temperature stored in the memory 40. Since the first temperature is obtained according to the ambient temperature in the standby state of the compressor 30, the measurement error condition of the temperature sensor 21 to be detected can be more accurately obtained by comparing the first temperature with the preset reference temperature.
Illustratively, the first temperature may be an outdoor ambient temperature detected by the ambient temperature sensor 22 (e.g., the second ambient temperature sensor 222) at the end of the stand-by state of the compressor 30; alternatively, since the time during which the compressor 30 is in the standby state is short, the ambient temperature (i.e., the first temperature) is generally relatively stable and changes little during the standby, and thus the first temperature may be any one of the plurality of ambient temperatures detected by the ambient temperature sensor 22 during the standby state, which is not limited herein.
For example, when the second controller 12 determines that the first temperature detected by the second ambient temperature sensor 222 is greater than or equal to the preset reference temperature, it indicates that the current outdoor ambient temperature has less influence on the measurement accuracy of the temperature sensor 21 to be detected, and does not affect the measurement result of the temperature sensor 21 to be detected. Therefore, the first current temperature (i.e. the second temperature) detected by the temperature sensor 21 in the operation state is a more accurate ambient temperature without being affected by the measurement error, and at this time, it is more accurate to determine whether the temperature sensor 21 to be detected is faulty or not by the relation between the second temperature and the allowable measurement range of the temperature sensor 21 to be detected.
While the compressor 30 is in an operating state, the controller 10 acquiring the second temperature includes: the first controller 11 or the second controller 12 acquires the second temperature. Wherein, if the temperature sensor 21 to be detected is disposed in the indoor unit 100, the first controller 11 may acquire the second temperature; if the temperature sensor 21 to be detected is provided in the outdoor unit 200, the second temperature may be acquired by the second controller 12.
In some examples, when the temperature sensor to be detected 21 is the second ambient temperature sensor 222, the first current temperature is the current temperature of the outdoor environment; when the temperature sensor 21 to be detected is the second heat exchanger temperature sensor 232, the first current temperature is the current temperature of the outdoor coil; or when the temperature sensor to be detected 21 is the compressor discharge temperature sensor 24, the first current temperature is the current temperature of the compressor 30 discharge.
After the controller 10 acquires the second temperature, it determines the relationship between the second temperature and the allowable measurement area of the temperature sensor 21 to be detected. When the second temperature is not within the allowable measurement range of the temperature sensor 21 to be detected, that is, when the second temperature is smaller than the first threshold value or greater than the second threshold value, indicating that the currently measured temperature of the temperature sensor 21 to be detected exceeds the allowable measurement range thereof, it is possible to determine that the temperature sensor 21 to be detected is malfunctioning.
When the second temperature is within the allowable measurement range of the temperature sensor to be detected 21, that is, when the second temperature is less than or equal to the first threshold value and less than or equal to the second threshold value, which indicates that the currently measured temperature of the temperature sensor to be detected 21 does not exceed the allowable measurement range thereof, it is determined that the temperature sensor to be detected 21 is in a state of normal operation.
The air conditioner 1 provided in some embodiments of the present disclosure determines the measurement error condition of the temperature sensor 21 to be detected by comparing the ambient temperature of the compressor 30 in the standby state before the current operation state with the preset reference temperature. Under the condition of ensuring that the measurement error of the temperature sensor 21 to be detected does not affect the detection result, the relation between the first current temperature detected by the temperature sensor 21 to be detected and the allowable measurement interval is determined, and then the fault condition of the temperature sensor 21 to be detected is judged. Therefore, compared with the case that whether the temperature to be detected sensor 21 is faulty or not is judged by directly judging whether the temperature to be detected sensor 21 is within the allowable measurement range in the related art, the judgment result of the air conditioner 1 provided by some embodiments of the present disclosure is more accurate, and the fault misjudgment probability of the temperature to be detected sensor 21 is further reduced. Meanwhile, since occurrence of erroneous judgment of the failure of the temperature sensor 21 to be detected is reduced, use safety and comfort of the air conditioner 1 can also be improved.
In some embodiments, the controller 10 is further configured to: acquiring the operation time of the compressor 30, wherein the operation time is the time from the ending time of the standby state before the operation state to the current time of the operation state of the compressor 30; while the compressor 30 is in the operating state, a failure of the temperature sensor 21 to be detected is determined in response to the first temperature being less than a preset reference temperature, in response to the operating time being greater than or equal to a preset time, and in response to the second temperature being less than a first threshold or greater than a second threshold.
When the compressor 30 is in the operation state, if the first temperature obtained by the controller 10 is less than the preset reference temperature, it indicates that the ambient temperature may affect the measurement accuracy of the temperature sensor 21 to be detected, causing a larger error in the detection result of the temperature sensor 21 to be detected, and at this time, if the current temperature detected by the temperature sensor 21 to be detected is not in the allowable measurement range, it is determined that the fault of the temperature sensor 21 to be detected may cause erroneous judgment, thereby affecting the operation of the air conditioner 1. Thus, in some examples, the controller 10 may determine that the temperature sensor 21 to be detected is normal when the first temperature is less than the preset reference temperature.
In other examples, heat is continuously generated after the compressor 30 enters the current operation state from the end of the standby state, and the heat is transferred to the temperature sensor 21 to be detected. As the operation time of the compressor 30 increases, the temperature of the temperature sensor 21 to be detected is greatly increased, and the measurement accuracy of the temperature sensor 21 to be detected is also improved. When the running time reaches the preset time, the measurement accuracy of the temperature sensor 21 to be detected can ensure that the measurement error can not affect the measurement result, and at this time, the accuracy of fault judgment of the temperature sensor 21 to be detected can be further improved by judging the relation between the second temperature and the allowable measurement interval of the temperature sensor 21 to be detected.
For example, the preset time may be an operation time of the compressor 30 when it is ensured that a measurement error of the temperature sensor 21 to be detected does not affect a measurement result thereof. In some examples, the temperature sensor 21 to be detected may be different, and its preset time may be different. For example, when the temperature sensor 21 to be detected is the compressor discharge temperature sensor 24, the preset time thereof may be 10 minutes.
When the operation time of the compressor 30 does not reach the preset time, the measurement error of the temperature sensor 21 to be detected may affect the detection result thereof, and at this time, the controller 10 cannot determine that the temperature sensor 21 to be detected is malfunctioning by the second temperature not being within the allowable measurement interval of the temperature sensor 21 to be detected; or the controller 10 may determine that the temperature sensor 21 to be detected is normal; or the controller 10 may determine the fault condition of the temperature sensor 21 to be detected when the operation time of the compressor 30 reaches the preset time, so that the fault misdetermination rate of the temperature sensor 21 to be detected may be further reduced.
In some embodiments, the temperature sensor to be detected is further configured to: a second current temperature of the corresponding region is detected when the compressor 30 is in a standby state. The controller 10 is further configured to: a third temperature is acquired, and a failure of the temperature sensor 21 to be detected is determined in response to the third temperature being less than the first threshold or greater than the second threshold while the compressor 30 is in the standby state. Or in response to the third temperature being greater than or equal to the first threshold value and less than or equal to the second threshold value, it is determined that the temperature sensor 21 to be detected is normal. Wherein the third temperature is derived from the second current temperature.
In some examples, if the temperature sensor 21 to be detected is an ambient temperature sensor (such as the second ambient temperature sensor 222) or a heat exchanger temperature sensor (such as the second heat exchanger temperature sensor 232), when the compressor 30 is in the standby state and the operation state is ended, the temperature sensor 21 to be detected is heated during the last operation state of the compressor 30, and as the temperature of the temperature sensor 21 to be detected increases, the measurement accuracy of the temperature sensor 21 to be detected increases, so that when the compressor 30 is in the standby state, the measurement error of the temperature sensor 21 to be detected is small and the measurement result thereof is not affected, and therefore, the second current temperature detected by the temperature sensor 21 to be detected in the standby state is also more accurate.
Therefore, when the compressor 30 is in the standby state, the controller 10 can determine whether the temperature sensor 21 to be detected is malfunctioning by the relation of the third temperature and the allowable measurement interval of the temperature sensor 21 to be detected. When the third temperature is not within the allowable measurement interval of the temperature sensor to be detected 21, determining that the temperature sensor to be detected 21 is faulty; when the third temperature is within the allowable measurement range of the temperature sensor to be detected 21, it is determined that the temperature sensor to be detected 21 is normal.
In some embodiments, the controller 10 is further configured to: while the compressor 30 is in the standby state, a failure of the temperature sensor 21 to be detected is determined in response to the first temperature being greater than or equal to a preset reference temperature, and in response to the third temperature being less than a first threshold or greater than a second threshold.
Illustratively, when the temperature sensor 21 to be detected is the compressor discharge temperature sensor 24, the measurement error is large because the discharge temperature sensor 24 is at a low ambient temperature. In this case, the fault condition of the temperature sensor 21 to be detected may be determined by determining whether the ambient temperature of the compressor 30 in the standby state affects the measurement accuracy of the temperature sensor 21 to be detected, and then determining whether the second current temperature detected by the temperature sensor 21 to be detected is within the allowable measurement range thereof, so that the fault misjudgment rate of the temperature sensor 21 to be detected may be further reduced.
If the first temperature is greater than or equal to the preset reference temperature, it indicates that the current measurement error of the temperature sensor 21 to be detected does not affect the measurement result of the temperature sensor 21 to be detected, at this time, the controller 10 may determine whether the temperature sensor 21 to be detected is faulty by determining whether the third temperature is within the allowable measurement range of the temperature sensor 21 to be detected.
If the first temperature is less than the preset reference temperature, the measurement error of the temperature sensor 21 to be detected may be large, and thus, the controller 10 cannot determine the failure thereof by the third temperature not being within the allowable measurement range of the temperature sensor 21 to be detected. In some examples, in this case, the controller 10 may determine that the temperature sensor 21 to be detected is in a normal state.
In some embodiments, the controller 10 is further configured to: performing analog-to-digital conversion on the ambient temperature to obtain a first temperature; performing analog-to-digital conversion on the first current temperature to obtain a second temperature; and carrying out analog-to-digital conversion on the second current temperature to obtain a third temperature.
In some examples, during operation of the air conditioner 1, the controller 10 (e.g., the first controller 11 and/or the second controller 12) may perform analog-to-digital conversion on the acquired ambient temperature, the first current temperature, and the second current temperature, respectively, to obtain a first temperature, a second temperature, and a third temperature, and compare the first temperature with a preset reference temperature, and compare the second temperature and the third temperature with a first threshold and a second threshold of a measurement interval allowed by the temperature sensor 21 to be detected, respectively. In some examples, the preset reference temperature and the first and second thresholds of the allowable measurement interval of the temperature sensor 21 to be detected may be temperatures after analog-to-digital conversion. The comparison operation is performed by adopting the temperature after the analog-to-digital conversion, so that the efficiency of the fault judging process can be improved.
Some embodiments of the present disclosure provide a control method of an air conditioner. Referring to fig. 1, the air conditioner may be the air conditioner 1 in any of the above embodiments, where the air conditioner 1 includes a compressor 30, a temperature sensor 21 to be detected, an ambient temperature sensor 22, and a controller 10. Fig. 4 is a flowchart of a control method of an air conditioner according to some embodiments of the present disclosure. As shown in fig. 4, the control method of the air conditioner includes steps 411 to 414.
In step 411, a first temperature is obtained.
Wherein the first temperature is obtained based on the ambient temperature of the standby state of the compressor 30 before the operating state detected by the ambient temperature sensor 22.
Step 412, a second temperature is obtained.
Wherein the second temperature is obtained according to the first current temperature of the corresponding area of the compressor 30 in the running state detected by the temperature sensor 21 to be detected. For example, taking the example that the temperature sensor 21 to be detected is disposed in the outdoor unit 200, the temperature sensor 21 to be detected may send the detected first current temperature to the second controller 12, and the second controller 12 performs analog-to-digital conversion on the current temperature to obtain the second temperature.
In step 413, when the compressor 30 is in the operation state, the failure of the temperature sensor 21 to be detected is determined in response to the first temperature being greater than or equal to the preset reference temperature, and in response to the second temperature being less than the first threshold or greater than the second threshold.
The temperature sensor 21 to be detected has an allowable measurement interval, the first threshold and the second threshold are two endpoints of the allowable measurement interval, and the first threshold is smaller than the second threshold.
When the first temperature is greater than or equal to the preset reference temperature, it indicates that the measurement error of the temperature sensor 21 to be detected does not affect the detection result, so that the second temperature can be continuously compared with the allowable measurement range of the temperature sensor 21 to be detected, and if the second temperature is less than the first threshold or greater than the second threshold, the fault of the temperature sensor 21 to be detected is determined.
In step 414, when the compressor 30 is in the operation state, the temperature sensor 21 to be detected is determined to be normal in response to the first temperature being greater than or equal to the preset reference temperature and in response to the second temperature being greater than or equal to the first threshold and less than or equal to the second threshold.
Fig. 5 is a schematic diagram of another control method of an air conditioner according to an embodiment of the present disclosure, where referring to fig. 1, the air conditioner may be the air conditioner 1 in any of the foregoing embodiments, and the air conditioner 1 includes a compressor 30, a temperature sensor 21 to be detected, an ambient temperature sensor 22, and a controller 10. As shown in fig. 5, the control method of the air conditioner includes steps 511 to 520.
In step 511, the operation state of the compressor 30 is acquired.
Step 512 determines whether the compressor 30 is in an operating state.
If the compressor 30 is in the operation state, step 513 is performed, and if the compressor 30 is not in the operation state (i.e., standby state), step 519 is performed.
In step 513, a first temperature is obtained.
Step 513 is similar to step 411 in the above embodiment, and will not be described here again.
Step 514, determining whether the first temperature is greater than or equal to a preset reference temperature.
If the first temperature is less than the preset reference temperature, step 517 is executed; if the first temperature is greater than or equal to the preset reference temperature, step 515 is performed.
Step 515, a second temperature is obtained.
Step 515 is similar to step 412 in the above embodiment and will not be described again.
At step 516, it is determined whether the second temperature is less than a first threshold or greater than a second threshold.
If the second temperature is less than the first threshold or greater than the second threshold, go to step 518; if the second temperature is greater than or equal to the first threshold and less than or equal to the second threshold, step 517 is performed.
In step 517, it is determined that the temperature sensor 21 to be detected is normal.
In step 518, a failure of the temperature sensor 21 to be detected is determined.
In step 519, a third temperature is obtained.
Wherein the third temperature is obtained according to the second current temperature detected by the temperature sensor 21 to be detected when the compressor 30 is in the standby state, and the step 520 is continued.
Step 520, determining whether the third temperature is less than the first threshold or greater than the second threshold.
If the third temperature is less than the first threshold or greater than the second threshold, go to step 518; if the third temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value; step 517 is performed.
In some embodiments, the temperature sensor 21 to be detected may be an ambient temperature sensor 22, a heat exchanger temperature sensor 23, or a compressor discharge temperature sensor 24. Wherein the ambient temperature sensor 22 comprises a first ambient temperature sensor 221 and a second ambient temperature sensor 222, and the heat exchanger temperature sensor 23 comprises a first heat exchanger temperature sensor 231 and a second heat exchanger temperature sensor 232.
Fig. 6 is a schematic diagram of a control method of an air conditioner according to another embodiment of the present disclosure, where referring to fig. 1, the air conditioner may be the air conditioner 1 in any of the foregoing embodiments, and the air conditioner 1 includes a compressor 30, a temperature sensor 21 to be detected, an ambient temperature sensor 22, and a controller 10. As shown in fig. 6, the control method of the air conditioner includes steps 611 to 621.
In step 611, the operation state of the compressor 30 is acquired.
Step 612 determines whether the compressor 30 is in an operating state.
If the compressor 30 is in the operation state, step 613 is performed, and if the compressor 30 is not in the operation state (i.e., standby state), step 620 is performed.
In step 613, a first temperature is obtained.
Step 613 is similar to step 411 in the above embodiment, and will not be described here again.
Step 614 determines whether the first temperature is greater than or equal to a preset reference temperature.
If the first temperature is less than the preset reference temperature, step 615 is executed; if the first temperature is greater than or equal to the preset reference temperature, step 616 is performed.
In step 615, it is determined whether the operation time of the compressor 30 is greater than or equal to a preset time.
The operation time is a time from an end time of a standby state before the operation state to a current time of the operation state of the compressor 30.
If the operation time of the compressor 30 is greater than or equal to the preset time, step 616 is executed, and if the operation time of the compressor 30 is less than the preset time, step 618 is executed.
At step 616, a second temperature is obtained.
Step 616 is similar to step 412 in the above embodiment and will not be described again here.
Step 617 determines if the second temperature is less than a first threshold, or greater than a second threshold.
If the second temperature is less than the first threshold or greater than the second threshold, step 619 is performed; if the second temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value; step 618 is performed.
At step 618, it is determined that the temperature sensor 21 to be detected is normal.
Step 619, determining a failure of the temperature sensor 21 to be detected.
Step 620, a third temperature is obtained.
Step 621, determining whether the third temperature is less than the first threshold or greater than the second threshold.
If the third temperature is less than the first threshold or greater than the second threshold, step 619 is performed; if the second temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value; step 618 is performed.
Fig. 7 is a schematic diagram of a control method of an air conditioner according to another embodiment of the present disclosure, where referring to fig. 1, the air conditioner may be the air conditioner 1 in any of the foregoing embodiments, and the air conditioner 1 includes a compressor 30, a temperature sensor 21 to be detected, an ambient temperature sensor 22, and a controller 10. As shown in fig. 7, the control method of the air conditioner includes steps 711 to 720.
In step 711, the operation state of the compressor 30 is acquired.
At step 712, it is determined whether the compressor 30 is in an operating state.
If the compressor 30 is in the operation state, step 713 is performed, and if the compressor 30 is in the standby state, step 713 is also performed.
In step 713, a first temperature is obtained.
When the compressor 30 is in the operating state, the first temperature is an ambient temperature in a standby state before the operating state of the compressor 30; when the compressor 30 is in a standby state, the first temperature is the current ambient temperature.
Step 714, it is determined whether the first temperature is greater than or equal to a preset reference temperature.
If the first temperature is less than the preset reference temperature, step 717 is performed; if the first temperature is greater than or equal to the preset reference temperature, step 715 is performed when the compressor 30 is in the operation state, and step 719 is performed when the compressor 30 is in the standby state.
In step 715, a second temperature is obtained.
Step 716, determining whether the second temperature is less than a first threshold or greater than a second threshold.
If the second temperature is less than the first threshold or greater than the second threshold, go to step 718; if the second temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value; step 717 is performed.
Step 717 determines that the temperature sensor 21 to be detected is normal.
Step 718 determines that the temperature sensor 21 to be detected is malfunctioning.
Step 719, a third temperature is obtained.
Step 720 determines whether the third temperature is less than the first threshold, or greater than the second threshold.
If the third temperature is less than the first threshold or greater than the second threshold, go to step 718; if the third temperature is greater than or equal to the first threshold value and less than or equal to the second threshold value; step 717 is performed.
In some embodiments, the temperature sensor 21 to be detected may be a compressor discharge temperature sensor 24.
The control method of the air conditioner has the same beneficial effects as those of the air conditioner described in some embodiments, and will not be described in detail here.
It should be noted that the various steps depicted in the figures of some embodiments of the present disclosure in a particular order are not required or implied to be performed in that particular order or to perform all of the illustrated steps in order to achieve desirable results. Each step in the drawings may be added, some steps may be omitted, or a plurality of steps may be combined into one step to be executed, or one step may be decomposed into a plurality of steps to be executed, or the like.
Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) having stored thereon computer program instructions that, when executed by an air conditioner, cause the air conditioner to perform the method of controlling an air conditioner as described in any of the above embodiments.
By way of example, the computer-readable storage media described above can include, but are not limited to: magnetic storage devices (e.g., hard Disk, floppy Disk or magnetic strips, etc.), optical disks (e.g., CD (Compact Disk), DVD (DIGITAL VERSATILE DISK ), etc.), smart cards, and flash Memory devices (e.g., EPROM (Erasable Programmable Read-Only Memory), card, stick, key drive, etc.). Various computer-readable storage media described in this disclosure may represent one or more devices and/or other machine-readable storage media for storing information.
Some embodiments of the present disclosure also provide a computer program product. The computer program product includes computer program instructions stored on a non-transitory computer readable storage medium. Wherein the computer program instructions, when executed by the air conditioner, cause the air conditioner to perform the control method of the air conditioner as described in the above embodiments.
Some embodiments of the present disclosure also provide a computer program. The computer program is stored on a non-transitory computer readable storage medium. When the computer program is executed by the air conditioner, the air conditioner is caused to execute the control method of the air conditioner as described in the above embodiment.
The beneficial effects of the computer readable storage medium, the computer program product and the computer program are the same as those of the control method of the air conditioner described in some embodiments, and are not described herein.
Those skilled in the art will appreciate that the scope of the disclosure of the present disclosure is not limited to the specific embodiments described above, and that modifications and substitutions may be made to certain elements of the embodiments without departing from the spirit of the application. The scope of the present disclosure is limited by the appended claims.

Claims (13)

  1. An air conditioner, comprising:
    A compressor;
    An ambient temperature sensor configured to detect an ambient temperature of the compressor in a standby state prior to an operating state;
    A temperature sensor to be detected configured to detect a first current temperature of a corresponding region of the compressor in the operating state; the temperature sensor to be detected is provided with an allowable measurement interval, wherein the allowable measurement interval comprises a first threshold value and a second threshold value, and the first threshold value is smaller than the second threshold value;
    A controller coupled to each of the ambient temperature sensor, the temperature sensor to be detected, and the compressor and configured to:
    Acquiring a first temperature, wherein the first temperature is obtained according to the ambient temperature;
    acquiring a second temperature, wherein the second temperature is obtained according to the first current temperature;
    When the compressor is in the running state, responding to the fact that the first temperature is larger than or equal to a preset reference temperature, and responding to the fact that the second temperature is smaller than the first threshold value or larger than the second threshold value, and determining that the temperature sensor to be detected is faulty; or alternatively
    And responding to the first temperature being greater than or equal to the preset reference temperature, and responding to the second temperature being greater than or equal to a first threshold value and being less than or equal to a second threshold value, and determining that the temperature sensor to be detected is normal.
  2. The air conditioner of claim 1, wherein the controller is further configured to:
    Acquiring the running time of the compressor, wherein the running time is the time from the ending time of the standby state before the running state to the current time of the running state of the compressor;
    Determining that the temperature sensor to be detected is faulty in response to the first temperature being less than the preset reference temperature, in response to the operating time being greater than or equal to a preset time, and in response to the second temperature being less than the first threshold or greater than the second threshold while the compressor is in the operating state.
  3. The air conditioner of claim 1, wherein the temperature sensor to be detected is further configured to: detecting a second current temperature of a corresponding area of the compressor in the standby state;
    The controller is further configured to:
    acquiring a third temperature, wherein the third temperature is obtained according to the second current temperature;
    Determining that the temperature sensor to be detected is faulty in response to the third temperature being less than the first threshold or greater than the second threshold while the compressor is in the standby state; or alternatively
    And determining that the temperature sensor to be detected is normal in response to the third temperature being greater than or equal to a first threshold and less than or equal to a second threshold.
  4. The air conditioner of claim 3, wherein the controller is further configured to:
    And when the compressor is in the standby state, determining that the temperature sensor to be detected has a fault in response to the first temperature being greater than or equal to the preset reference temperature and in response to the third temperature being less than the first threshold or greater than the second threshold.
  5. The air conditioner of claim 4, wherein the controller is further configured to:
    Performing analog-to-digital conversion on the ambient temperature to obtain the first temperature; performing analog-to-digital conversion on the first current temperature to obtain the second temperature; and carrying out analog-to-digital conversion on the second current temperature to obtain the third temperature.
  6. The air conditioner according to any one of claims 1 to 3, wherein the temperature sensor to be detected is an ambient temperature sensor, a heat exchanger temperature sensor, or a compressor discharge temperature sensor.
  7. The air conditioner as claimed in claim 4, wherein the temperature sensor to be detected is a compressor discharge temperature sensor.
  8. The control method of the air conditioner comprises a compressor, an ambient temperature sensor, a temperature sensor to be detected and a controller, wherein the ambient temperature sensor is used for detecting the ambient temperature of the compressor in a standby state before an operation state; the temperature sensor to be detected is used for detecting a first current temperature of a corresponding area of the compressor in the running state, the temperature sensor to be detected is provided with an allowable measurement interval, the allowable measurement interval comprises a first threshold value and a second threshold value, and the first threshold value is smaller than the second threshold value; the method comprises the following steps:
    Acquiring a first temperature, wherein the first temperature is obtained according to the ambient temperature;
    acquiring a second temperature, wherein the second temperature is obtained according to the first current temperature;
    when the compressor is in the running state, responding to the fact that the first temperature is larger than or equal to the preset reference temperature, and responding to the fact that the second temperature is smaller than the first threshold value or larger than the second threshold value, and determining that the temperature sensor to be detected is faulty; or alternatively
    And responding to the first temperature being greater than or equal to the preset reference temperature, and responding to the second temperature being greater than or equal to a first threshold value and being less than or equal to a second threshold value, and determining that the temperature sensor to be detected is normal.
  9. The method of claim 8, further comprising:
    acquiring the running time of the compressor, wherein the running time is the time from the ending time of the standby state before the running state to the current time of the running state of the compressor;
    Determining that the temperature sensor to be detected is faulty in response to the first temperature being less than the preset reference temperature, in response to the operating time being greater than or equal to a preset time, and in response to whether the second temperature is less than the first threshold or greater than the second threshold while the compressor is in the operating state.
  10. The method of claim 8, further comprising:
    Acquiring a third temperature, wherein the third temperature is obtained by detecting a second current temperature of a corresponding area when the temperature sensor to be detected is in the standby state of the compressor;
    Determining that the temperature sensor to be detected is faulty in response to the third temperature being less than the first threshold or greater than the second threshold while the compressor is in the standby state; or alternatively
    And when the compressor is in the standby state, responding to the fact that the third temperature is larger than or equal to a first threshold value and smaller than or equal to a second threshold value, and determining that the temperature sensor to be detected is normal.
  11. The method of claim 10, further comprising:
    And when the compressor is in the standby state, determining that the temperature sensor to be detected has a fault in response to the first temperature being greater than or equal to the preset reference temperature and in response to the third temperature being less than the first threshold or greater than the second threshold.
  12. The method of claim 11, further comprising:
    performing analog-to-digital conversion on the ambient temperature to obtain the first temperature;
    Performing analog-to-digital conversion on the first current temperature to obtain the second temperature;
    and carrying out analog-to-digital conversion on the second current temperature to obtain the third temperature.
  13. A non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by an air conditioner, causes the air conditioner to implement the control method of the air conditioner according to any one of claims 8 to 12.
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