Method and device for determining whether exhaust temperature sensing bulb of air conditioner falls off or not

Abstract

The invention provides a method and device for determining whether an exhaust temperature sensing bulb of an air conditioner falls off or not, and the method comprises the steps that the first exhaust temperature sensing bulb temperature of the air conditioner is obtained at the first moment, and the first moment is the moment after a first preset duration after the air conditioner is started; acquiring a second exhaust temperature sensing bulb temperature of the air conditioner, a first inlet pipe temperature of an indoor unit heat exchanger of the air conditioner and a first outlet pipe temperature of the indoor unit heat exchanger of the air conditioner at a second moment, wherein the second moment is a moment after a second preset duration after the air conditioner is started; and according to the magnitude relation between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the magnitude relation between the first inlet pipe temperature and the first outlet pipe temperature, whether the exhaust temperature sensing bulb of the air conditioner falls off or not is determined. According to the method, whether the temperature of the exhaust thermal bulb is detected accurately or not is judged according to changes of the exhaust temperature, the indoor unit heat exchanger inlet pipe temperature and the indoor unit heat exchanger outlet pipe temperature, and therefore the falling condition of the air conditioner exhaust pipe thermal bulb is determined.

Description

Technical Field

[0001] The present application relates to the field of temperature sensing package detection, and in particular, to a method for determining whether an exhaust temperature sensing package of an air conditioner has fallen off, a device for determining whether an exhaust temperature sensing package of an air conditioner has fallen off, a computer-readable storage medium, and an electronic device. Background Art

[0002] Existing air conditioners are tested before leaving the factory, but during installation or after-sales maintenance, the exhaust temperature sensor may not be installed correctly or not installed in place, and in some cases it may fall off after transportation.

[0003] In the prior art, it takes a long time to judge whether the temperature sensor of the air conditioner exhaust pipe has fallen off, and there are still problems that some situations cannot be judged. If an abnormal situation such as the exhaust temperature sensor falling off occurs but the system does not make a judgment prompt, the system can work normally, but there is a risk of burning the compressor if it runs for a long time. Summary of the invention

[0004] The main purpose of the present application is to provide a method for determining whether an exhaust temperature sensing bag of an air conditioner has fallen off, a device for determining whether an exhaust temperature sensing bag of an air conditioner has fallen off, a computer-readable storage medium and an electronic device, so as to at least solve the problem that the method for determining whether the exhaust temperature sensing bag of an air conditioner has fallen off in the prior art has a long determination period, low determination accuracy and is prone to missed reports.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for determining whether an exhaust temperature sensing bag of an air conditioner has fallen off is provided, including: obtaining the temperature of the exhaust temperature sensing bag of the air conditioner at a first moment to obtain a first exhaust temperature sensing bag temperature, the first moment being a moment after a first preset time has passed after the air conditioner is turned on; obtaining the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of an indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second moment to obtain a second exhaust temperature sensing bag temperature, a first inlet pipe temperature, and a first outlet pipe temperature, the second moment being a moment after a second preset time has passed after the air conditioner is turned on, the second preset time being greater than the first preset time; determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0006] Optionally, based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, determining whether the exhaust temperature sensing bag of the air conditioner has fallen off includes: calculating the difference between the second exhaust temperature sensing bag temperature and the first exhaust temperature sensing bag temperature to obtain a first exhaust temperature difference; calculating the difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain a first pipe temperature difference; determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature difference and a preset exhaust temperature difference and the relationship between the first pipe temperature difference and a preset pipe temperature difference.

[0007] Optionally, based on the size relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the first pipe temperature difference and the preset pipe temperature difference, it is determined whether the exhaust temperature sensing bag of the air conditioner has fallen off, including: when the first exhaust temperature difference is greater than the preset exhaust temperature difference, and the first pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off; when the first exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the first pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, the air conditioner is controlled to shut down, and an alarm signal is issued.

[0008] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a third moment to obtain a third exhaust temperature sensing bag temperature, a second inlet pipe temperature, and a second outlet pipe temperature, wherein the third moment is a moment after a third preset time has passed after the air conditioner is turned on, and the third preset time is greater than the second preset time; calculating the difference between the third exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature to obtain a second exhaust temperature difference; calculating the difference between the second outlet pipe temperature and the second inlet pipe temperature to obtain a second pipe temperature difference; and determining whether the exhaust temperature sensing bag of the air conditioner has fallen off for the second time based on the magnitude relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the second pipe temperature difference and the preset pipe temperature difference.

[0009] Optionally, based on the size relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the second pipe temperature difference and the preset pipe temperature difference, it is determined for the second time whether the exhaust temperature sensing bag of the air conditioner has fallen off, including: when the second exhaust temperature difference is greater than the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, and the compressor frequency of the air conditioner is reduced; when the second exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, and the air conditioner is controlled to shut down and an alarm signal is issued.

[0010] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current outdoor fan speed of the air conditioner; when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient threshold, increasing the outdoor fan speed of the air conditioner to obtain a first target speed, which is the sum of the current outdoor fan speed and the first threshold speed; when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient threshold, increasing the outdoor fan speed of the air conditioner to obtain a second target speed, which is the sum of the current outdoor fan speed and the second threshold speed; the second threshold speed is greater than the first threshold speed; when the outdoor ambient temperature is greater than or equal to the third temperature threshold, increasing the outdoor fan speed of the air conditioner to obtain a third target speed, which is the sum of the current outdoor fan speed and the third threshold speed; the third threshold speed is greater than the second threshold speed.

[0011] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current electronic expansion valve opening of the air conditioner; when the outdoor ambient temperature is greater than or equal to a first temperature threshold and less than a second ambient temperature threshold, increasing the opening of the electronic expansion valve of the air conditioner to obtain a first target opening, the first target opening being the current electronic expansion valve opening. The sum of the electronic expansion valve opening and the first threshold opening; when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a second target opening, and the second target opening is the sum of the current electronic expansion valve opening and the second threshold opening; the second threshold opening is greater than the first threshold opening; when the outdoor ambient temperature is greater than or equal to the third temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a third target opening, and the third target opening is the sum of the current electronic expansion valve opening and the third threshold opening; the third threshold opening is greater than the second threshold opening.

[0012] According to another aspect of the present application, a device for determining whether an exhaust temperature sensing bag of an air conditioner has fallen off is provided, comprising: a first acquisition unit, used to acquire the temperature of the exhaust temperature sensing bag of the air conditioner at a first moment to obtain a first exhaust temperature sensing bag temperature, wherein the first moment is a moment after a first preset time has passed after the air conditioner is turned on; a second acquisition unit, used to acquire the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of an indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second moment to obtain a second exhaust temperature sensing bag temperature, a first inlet pipe temperature, and a first outlet pipe temperature, wherein the second moment is a moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; a determination unit, used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0013] According to another aspect of the present application, a computer-readable storage medium is provided, the computer-readable storage medium including a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the methods for determining whether the exhaust temperature sensing package of an air conditioner has fallen off.

[0014] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing any one of the methods for determining whether an exhaust temperature sensing package of an air conditioner has fallen off.

[0015] Applying the technical solution of the present application, the method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off is as follows: first, the temperature of the first exhaust temperature sensing package of the air conditioner is obtained at the first moment, and the first moment is the moment after the first preset time has passed after the air conditioner is turned on; then, the temperature of the second exhaust temperature sensing package of the air conditioner, the first inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the first outlet pipe temperature of the indoor heat exchanger of the air conditioner are obtained at the second moment, and the second moment is the moment after the second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; finally, according to the size relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, it is determined whether the exhaust temperature sensing package of the air conditioner has fallen off. The method determines whether the temperature of the exhaust temperature sensing package is accurately detected by the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger, and the outlet pipe temperature of the indoor heat exchanger, thereby determining the falling off of the exhaust pipe temperature package of the air conditioner, and solves the problem that the judgment method of the falling off of the exhaust pipe temperature package of the air conditioner in the prior art has a long judgment cycle, low judgment accuracy, and easy to miss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for determining whether an exhaust temperature sensing package of an air conditioner has fallen off according to an embodiment of the present application is shown;

[0018] Figure 2 A schematic flow chart of a method for determining whether an exhaust temperature sensing package of an air conditioner has fallen off is shown according to an embodiment of the present application;

[0019] Figure 3 A schematic flow chart of a method for adjusting the speed of an outdoor fan of an air conditioner provided in accordance with an embodiment of the present application is shown;

[0020] Figure 4 A schematic flow chart of a method for adjusting an electronic expansion valve of an air conditioner provided in accordance with an embodiment of the present application is shown;

[0021] Figure 5A schematic flow chart of another method for determining whether an exhaust temperature sensing package of an air conditioner has fallen off is shown according to an embodiment of the present application;

[0022] Figure 6 A structural block diagram of a device for determining whether an exhaust temperature sensing package of an air conditioner has fallen off is shown according to an embodiment of the present application.

[0023] The above drawings include the following reference numerals:

[0024] 102, processor; 104, memory; 106, transmission device; 108, input and output devices. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] As introduced in the background technology, in the prior art, the exhaust temperature sensing bag temperature is detected after the whole machine runs to a certain frequency, and compared with the initial exhaust temperature. The comparison value and the preset value are compared to determine whether the exhaust temperature sensing bag has fallen off. If the exhaust comparison value is less than the set value, it is necessary to enter the cold outlet temperature of refrigeration or the pipe temperature of heating and the exhaust temperature for comparison. Only if the comparison value is greater than the preset value, it is judged that the temperature sensing bag has not fallen off. Otherwise, it is judged that the temperature sensing bag may have fallen off, and it is necessary to enter the next condition to further confirm whether the exhaust temperature sensing bag has fallen off. Introduce the pipe temperature and exhaust difference judgment. If the difference is less than the preset value, it is judged that there is no problem. If it is greater than or equal to the preset value, it is still impossible to determine whether the exhaust temperature sensing bag has fallen off, then it is necessary to increase to the preset frequency 2, and then judge the exhaust temperature difference after the preset time 2. If the exhaust temperature difference is greater than the preset value, it is judged that there is no problem. Otherwise, it is necessary to compare the pipe temperature and the exhaust temperature value. If the difference is less than the preset value, it is judged that there is no problem, otherwise an alarm will be issued.

[0029] The above judgment requires a long period of time, and there are still some situations where the problem cannot be judged. If there is an abnormal situation such as the exhaust temperature sensor falling off, but the system has no judgment prompt, the system can work normally, and there is a risk of burning the compressor if it runs for a long time.

[0030] In order to solve the problems in the prior art of judging whether the temperature bag of the air conditioner exhaust pipe has fallen off, such as long judgment period, low judgment accuracy and easy underreporting, the embodiments of the present application provide a method for determining whether the exhaust temperature bag of an air conditioner has fallen off, a device for determining whether the exhaust temperature bag of an air conditioner has fallen off, a computer-readable storage medium and an electronic device.

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 1 is a hardware structure block diagram of a mobile terminal for determining whether an air conditioner exhaust temperature sensing package has fallen off according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0033] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0034] In this embodiment, a method for determining whether the exhaust temperature sensing package of an air conditioner running on a mobile terminal, a computer terminal or a similar computing device has fallen off is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] Figure 2 FIG. 1 is a flow chart of a method for determining whether the air conditioner exhaust temperature sensing package has fallen off according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0036] Step S201, obtaining the temperature of the exhaust temperature sensing package of the air conditioner at a first moment to obtain a first exhaust temperature sensing package temperature, wherein the first moment is a moment after a first preset time has passed since the air conditioner was turned on;

[0037] Specifically, the first preset time length can be set to 5 minutes.

[0038] Step S202, obtaining the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at the second moment, and obtaining the second exhaust temperature sensing package temperature, the first inlet pipe temperature, and the first outlet pipe temperature, wherein the second moment is the moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time;

[0039] Specifically, the second preset time length can be 10 minutes. By comparing the temperatures of the exhaust temperature sensing package at two moments, the difference between the temperatures detected by the exhaust temperature sensing package at two moments can be determined. If the difference is large, it proves that the exhaust temperature sensing package can detect the temperature difference, and proves that the exhaust temperature sensing package has not fallen off. If the difference is small, it proves that the temperature difference detected by the exhaust temperature sensing package is small, and proves that the exhaust temperature sensing package has fallen off or there is a risk of falling off.

[0040] Among them, the first moment and the second moment should be the moment when the air conditioner has not yet stably operated. At this time, the temperature difference normally collected by the exhaust temperature sensing package is larger, and a more accurate judgment can be made.

[0041] Step S203, determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the temperature of the first exhaust temperature sensing bag and the temperature of the second exhaust temperature sensing bag and the relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0042] Specifically, this can distinguish ambiguous situations, and will not shut down the machine directly, but will impose conditional restrictions so that the machine can operate normally, but will remind the user that there may be an abnormality, prompt the user to repair it in time, etc., thereby improving the reliability of the air conditioning system.

[0043] Wherein, determining whether the exhaust temperature sensing package of the air conditioner falls off according to the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature comprises the following steps:

[0044] Step S301, calculating the difference between the temperature of the second exhaust temperature sensing package and the temperature of the first exhaust temperature sensing package to obtain a first exhaust temperature difference;

[0045] Step S302, calculating the difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain a first pipe temperature difference;

[0046] Step S303, determining whether the exhaust temperature sensing package of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the first pipe temperature difference and the preset pipe temperature difference.

[0047] Specifically, by judging whether the temperature of the exhaust temperature sensing package is accurately detected by comparing the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, the judgment efficiency and accuracy can be improved.

[0048] Wherein, according to the magnitude relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the first pipe temperature difference and the preset pipe temperature difference, determining whether the exhaust temperature sensing package of the air conditioner falls off comprises the following steps:

[0049] Step S3031, when the first exhaust temperature difference is greater than the preset exhaust temperature difference, and the first pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off;

[0050] Step S3032, when the above-mentioned first exhaust temperature difference is less than or equal to the above-mentioned preset exhaust temperature difference, and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the above-mentioned air conditioner has fallen off, the above-mentioned air conditioner is controlled to shut down, and an alarm signal is issued.

[0051] Specifically, the preset exhaust temperature difference ΔT 排气 It can be set to about 5℃, preset tube temperature difference ΔT 管温 It can be set to about 6℃. Increasing the temperature difference between the inlet and outlet pipes of the heat exchanger in the air conditioner can more accurately determine whether the exhaust temperature sensor has fallen off. In this way, it can distinguish vague situations and will not shut down directly but restrict the conditions so that the machine can operate normally, but will remind the user that there may be an abnormality. Prompt the user to repair in time, etc., thereby improving the reliability of the air conditioning system operation.

[0052] It should be noted that ΔT 排气 is the preset temperature. When the temperature difference of the exhaust temperature sensor is not greater than this value, it means that the temperature change of the exhaust temperature sensor is very small. Usually, during the startup phase, the exhaust temperature rises greatly, but at this time, the exhaust temperature changes very little, which means that the temperature detected by the exhaust temperature sensor is not accurate. At the same time, when the air conditioning system detects that the exhaust temperature is significantly different from the target exhaust temperature, it will reduce the number of steps of the electronic expansion valve to increase the exhaust temperature. If the number of steps of the electronic expansion valve continues to decrease, the system refrigerant will overheat, and the temperature of the outlet pipe of the indoor heat exchanger will be higher than the temperature of the inlet pipe of the indoor heat exchanger, that is, the difference between the inlet and outlet temperatures of the indoor heat exchanger is greater than the preset ΔT 管温 ; Therefore, by judging the temperature change amplitude of the exhaust temperature sensing package and the temperature difference between the inlet and outlet pipes of the internal heat exchanger, if both meet the preset temperature conditions, it can be said that the temperature detected by the exhaust temperature sensing package is inaccurate, that is, the exhaust temperature sensing package has fallen off; It should be noted that ΔT 排气 With ΔT 管温 All are values ​​greater than 0.

[0053] When the first exhaust temperature difference is greater than the preset exhaust temperature difference, it proves that the exhaust temperature sensor can detect the temperature difference between the inlet and outlet pipes of the indoor heat exchanger, proving that the exhaust temperature sensor has not fallen off. However, since the first pipe temperature difference is greater than the preset pipe temperature difference, that is, the actual temperature of the inlet and outlet pipes of the indoor heat exchanger of the air conditioner is actually larger, but the exhaust temperature sensor can only detect a smaller temperature change, so it can be proved that the exhaust temperature sensor has a risk of falling off. For example: the first exhaust temperature difference detected by the exhaust temperature sensor is 6°C, and the actual first pipe temperature difference of the inlet and outlet pipes of the indoor heat exchanger of the air conditioner is 10°C, proving that the exhaust temperature sensor can only detect a smaller temperature change, so it can be proved that the exhaust temperature sensor has a risk of falling off.

[0054] When the first exhaust temperature is less than or equal to the preset exhaust temperature difference, it proves that the temperature difference detected by the exhaust temperature sensing package is very small, and almost no temperature difference can be detected. If the actual temperature of the inlet and outlet pipes of the air conditioner indoor unit heat exchanger is actually higher at this time, it proves that the exhaust temperature sensing package has fallen off.

[0055] When the first exhaust temperature difference is greater than the preset exhaust temperature difference, it proves that the exhaust temperature sensing bag can detect the temperature difference between the inlet and outlet pipes of the indoor unit heat exchanger, proving that the exhaust temperature sensing bag has not fallen off. If the first pipe temperature difference is less than the preset pipe temperature difference at this time, it proves that the actual temperature change of the inlet and outlet pipes of the real air-conditioning indoor unit heat exchanger is not very large, and the exhaust temperature sensing bag can also detect basically the same temperature change. Therefore, it can be proved that there is no risk of the exhaust temperature sensing bag falling off, that is, the exhaust temperature sensing bag is normal.

[0056] Wherein, after determining whether the exhaust temperature sensing package of the air conditioner has fallen off according to the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises the following steps:

[0057] Step S401, when it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner are obtained at a third moment to obtain a third exhaust temperature sensing package temperature, a second inlet pipe temperature, and a second outlet pipe temperature, wherein the third moment is a moment after a third preset time has passed after the air conditioner is turned on, and the third preset time is greater than the second preset time;

[0058] Step S402, calculating the difference between the temperature of the third exhaust temperature sensing package and the temperature of the second exhaust temperature sensing package to obtain a second exhaust temperature difference;

[0059] Step S403, calculating the difference between the second outlet pipe temperature and the second inlet pipe temperature to obtain a second pipe temperature difference;

[0060] Step S404, based on the magnitude relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the second pipe temperature difference and the preset pipe temperature difference, secondly determining whether the exhaust temperature sensing package of the air conditioner has fallen off.

[0061] Specifically, the third preset time length can be set to 11 minutes. When the exhaust temperature sensing package is detected to be at risk of falling off at the second moment, the second exhaust temperature difference and the second pipe temperature difference continue to be obtained in real time, and the state of the exhaust temperature sensing package can be continuously monitored. When the exhaust temperature sensing package is at risk of falling off, the compressor frequency, the external fan speed, and the throttling degree of the electronic expansion valve are adjusted to ensure the reliability of the air-conditioning operation. At the same time, without affecting the user's use, the system operation is limited by preset conditions to avoid damage to the air conditioner. If it is determined that the exhaust temperature sensing package has fallen off, the system will be shut down for processing, and a fault code will be displayed to prompt the user to perform maintenance.

[0062] Wherein, according to the magnitude relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the second pipe temperature difference and the preset pipe temperature difference, secondly determining whether the exhaust temperature sensing package of the air conditioner falls off comprises the following steps:

[0063] Step S4041, when the second exhaust temperature difference is greater than the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, and the compressor frequency of the air conditioner is reduced;

[0064] Step S4042, when the second exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, and the air conditioner is controlled to shut down and send out an alarm signal.

[0065] Specifically, this can continuously monitor the status of the exhaust temperature sensing package, so that when the exhaust temperature sensing package falls off, the machine can be shut down in time for processing, and a fault code can be displayed to prompt the user to perform maintenance.

[0066] Wherein, after determining whether the exhaust temperature sensing package of the air conditioner has fallen off according to the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises the following steps:

[0067] Step S501, when it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current external fan speed of the air conditioner;

[0068] Step S502, when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold, increasing the speed of the outdoor fan of the air conditioner to obtain a first target speed, wherein the first target speed is the sum of the current speed of the outdoor fan and the first threshold speed;

[0069] Step S503, when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, increasing the speed of the outdoor fan of the air conditioner to obtain a second target speed, wherein the second target speed is the sum of the current outdoor fan speed and the second threshold speed; the second threshold speed is greater than the first threshold speed;

[0070] Step S504, when the outdoor ambient temperature is greater than or equal to the third temperature threshold, increase the external fan speed of the air conditioner to obtain a third target speed, wherein the third target speed is the sum of the current external fan speed and the third threshold speed; the third threshold speed is greater than the second threshold speed.

[0071] Specifically, this can ensure the reliability of the air conditioner and ensure that the air conditioner can operate normally. In some examples, the above parameters can be set to the following values: the first temperature threshold is 30°C, the second temperature threshold is 40°C, the third temperature threshold is 48°C, the first threshold speed can be 30rpm / min, the second threshold speed can be 40rpm / min, and the third threshold speed can be 50rpm / min.

[0072] Specific external fan speed control Figure 3 As shown in Table 1:

[0073] Table 1

[0074] <![CDATA[Outdoor ambient temperature T 外环 > <![CDATA[T 外环1 ≤T 外环 <T 外环2 ]]> <![CDATA[T 外环2 ≤T 外环 <T 外环3 ]]> <![CDATA[T 外环3 ≤T 外环 ]]> <![CDATA[External fan R 外转 > <![CDATA[R 外转 +ΔR 外转1 ]]> <![CDATA[R 外转 +ΔR 外转2 ]]> <![CDATA[R 外转 +ΔR 外转3 ]]>

[0075] It should be noted that R 外转 is the speed of the external fan of the air conditioner at this time, ΔR 外转1 <ΔR 外转2 <ΔR 外转3 The higher the outer ring temperature is, the more the speed of the external fan increases, in order to improve the heat dissipation effect of the external unit and ensure the reliability of the air-conditioning system.

[0076] Wherein, after determining whether the exhaust temperature sensing package of the air conditioner has fallen off according to the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises the following steps:

[0077] Step S601, when it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current opening of the electronic expansion valve of the air conditioner;

[0078] Step S602, when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold, increasing the opening of the electronic expansion valve of the air conditioner to obtain a first target opening, wherein the first target opening is the sum of the current opening of the electronic expansion valve and the first threshold opening;

[0079] Step S603, when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, increasing the opening of the electronic expansion valve of the air conditioner to obtain a second target opening, wherein the second target opening is the sum of the current opening of the electronic expansion valve and the second threshold opening; the second threshold opening is greater than the first threshold opening;

[0080] Step S604, when the outdoor ambient temperature is greater than or equal to the third temperature threshold, increase the opening of the electronic expansion valve of the air conditioner to obtain a third target opening, wherein the third target opening is the sum of the current electronic expansion valve opening and the third threshold opening; the third threshold opening is greater than the second threshold opening.

[0081] Specifically, this can ensure the reliability of the air conditioner and ensure that the air conditioner can operate normally. In some examples, the above parameters can be set to the following values: the first temperature threshold is 30°C, the second temperature threshold is 40°C, the third temperature threshold is 48°C, the first threshold opening can be 25°C, the second threshold opening can be 35°C, and the third threshold opening can be 45°C.

[0082] Specific electronic expansion valve control such as Figure 4 As shown in Table 2:

[0083] Table 2

[0084] <![CDATA[Outdoor ambient temperature T 外环 > <![CDATA[T 外环1 ≤T 外环 <T 外环2 ]]> <![CDATA[T 外环2 ≤T 外环 <T 外环3 ]]> <![CDATA[T 外环3 ≤T 外环 ]]> Opening P <![CDATA[P+ΔP1]]> <![CDATA[P+ΔP2]]> <![CDATA[P+ΔP3]]>

[0085] It should be noted that P is the opening of the electronic expansion valve when the air conditioner is running, ΔP1<ΔP2<ΔP3, the higher the outer ring temperature, the more the opening of the electronic expansion valve is increased, thereby ensuring the reliability of the air conditioning system.

[0086] The method for determining whether the exhaust temperature sensing bag of the air conditioner of the present application has fallen off is as follows: first, the temperature of the first exhaust temperature sensing bag of the air conditioner is obtained at the first moment, and the first moment is the moment after the first preset time has passed after the air conditioner is turned on; then, the temperature of the second exhaust temperature sensing bag of the air conditioner, the first inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the first outlet pipe temperature of the indoor heat exchanger of the air conditioner are obtained at the second moment, and the second moment is the moment after the second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; finally, according to the size relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, it is determined whether the exhaust temperature sensing bag of the air conditioner has fallen off. The method determines whether the temperature of the exhaust temperature sensing bag is accurately detected by the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger, and the outlet pipe temperature of the indoor heat exchanger, thereby determining the falling off of the exhaust pipe temperature bag of the air conditioner, and solves the problem that the method for determining the falling off of the exhaust pipe temperature bag of the air conditioner in the prior art has a long judgment cycle, low judgment accuracy, and easy to miss.

[0087] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off of the present application will be described in detail below in combination with specific embodiments.

[0088] This embodiment relates to a specific method for determining whether the exhaust temperature sensing package of an air conditioner has fallen off. Figure 5 As shown, the following steps are included:

[0089] S01, detect the exhaust temperature sensor package temperature T at the time t1min when the air conditioner is turned on 排气1 ;

[0090] S02, detect the exhaust temperature sensor package temperature T when the air conditioner is turned on for t2min 排气2 , the inlet pipe temperature of the internal heat exchanger is T 进管1 and the outlet temperature of the internal heat exchanger T 出管1 , and calculate the exhaust temperature sensor temperature T 排气2 With T 排气1 The difference ΔT 排气1 , the outlet temperature of the internal heat exchanger is T 出管1 and the inlet pipe temperature of the indoor heat exchanger T 进管1 The difference ΔT 管温1 ;

[0091] S03, calculate ΔT 排气1 With the preset ΔT 排气 The difference, ΔT 管温1 With the preset ΔT 管温 If ΔT 排气1 -ΔT 排气 >0, ΔT 管温1 -ΔT管温 >0, the exhaust temperature sensor has the risk of falling off, and S04 is executed; if ΔT 排气1 -ΔT 排气 ≤0, ΔT 管温1 -ΔT 管温 >0, the exhaust temperature sensor will fall off, the machine will be shut down for processing, and the fault code will be displayed;

[0092] S04, detect the exhaust temperature sensor package temperature T at time t3min 排气3 , the inlet pipe temperature of the internal heat exchanger is T 进管2 and the outlet temperature of the internal heat exchanger T 出管2 , and calculate the exhaust temperature sensor temperature T 排气3 With T 排气2 The difference ΔT 排气2 , the outlet temperature of the internal heat exchanger is T 出管2 and the inlet pipe temperature of the indoor heat exchanger T 进管2 The difference ΔT 管温2 ;

[0093] S05, calculate ΔT 排气2 With the preset ΔT 排气 The difference, ΔT 管温2 With the preset ΔT 管温 If ΔT 排气2 -ΔT 排气 >0, ΔT 管温2 -ΔT 管温 >0, the exhaust temperature sensor has the risk of falling off, and S06 is executed; if ΔT 排气2 -ΔT 排气 ≤0, ΔT 管温2 -ΔT 管温 >0, the exhaust temperature sensor will fall off and the machine will be shut down for processing.

[0094] S06, adjust the compressor frequency to 50Hz;

[0095] S07, detecting the current outdoor ambient temperature, and executing control of the outdoor fan speed and the electronic expansion valve.

[0096] The above-mentioned embodiments optimize the logic to improve the judgment efficiency and accuracy in view of the long judgment cycle, low judgment accuracy, and easy underreporting of the existing exhaust temperature sensing package detachment or abnormality judgment logic. The temperature of the exhaust temperature sensing package is judged whether it is accurately detected by the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger, and the outlet pipe temperature of the indoor heat exchanger; if it is judged that the exhaust temperature sensing package has detached, the system is shut down for processing, and a fault code is displayed to prompt the user to perform maintenance; if it is judged that there is a risk of the exhaust temperature sensing package detaching, the compressor frequency, the speed of the external fan, and the throttling degree of the electronic expansion valve are adjusted to ensure the reliability of the air conditioner operation. At the same time, without affecting the user's use, the system operation is limited by preset conditions to avoid damage to the air conditioner.

[0097] The embodiment of the present application also provides a device for determining whether the exhaust temperature sensing package of an air conditioner has fallen off. It should be noted that the device for determining whether the exhaust temperature sensing package of an air conditioner has fallen off in the embodiment of the present application can be used to execute the method for determining whether the exhaust temperature sensing package of an air conditioner has fallen off provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation in hardware, or a combination of software and hardware, is also possible and conceived.

[0098] The following introduces a device for determining whether the exhaust temperature sensing package of an air conditioner has fallen off provided in an embodiment of the present application.

[0099] Figure 6 Schematic diagram of a device for determining whether the air conditioner exhaust temperature sensing package has fallen off according to an embodiment of the present application. Figure 6 As shown, the device includes a first acquisition unit 10, a second acquisition unit 20 and a determination unit 30, the first acquisition unit 10 is used to acquire the temperature of the exhaust temperature sensing bag of the air conditioner at a first moment, and obtain the first exhaust temperature sensing bag temperature, the first moment is the moment after the air conditioner is turned on after a first preset time; the second acquisition unit 20 is used to acquire the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second moment, and obtain the second exhaust temperature sensing bag temperature, the first inlet pipe temperature and the first outlet pipe temperature, the second moment is the moment after the air conditioner is turned on after a second preset time, and the second preset time is greater than the first preset time; the determination unit 30 is used to determine whether the exhaust temperature sensing bag of the air conditioner is detached according to the size relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0100] The device for determining whether the exhaust temperature sensing bag of the air conditioner mentioned above has fallen off in the present application comprises a first acquisition unit, a second acquisition unit and a determination unit, wherein the first acquisition unit is used to acquire the temperature of the first exhaust temperature sensing bag of the air conditioner at a first moment, and the first moment is the moment after a first preset time has passed after the air conditioner is turned on; the second acquisition unit is used to acquire the second exhaust temperature sensing bag temperature of the air conditioner, the first inlet pipe temperature of the indoor heat exchanger of the air conditioner and the first outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second moment, and the second moment is the moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; the determination unit is used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature. The device determines whether the temperature of the exhaust temperature sensing bag is accurately detected by measuring the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, thereby determining whether the temperature sensing bag of the air conditioner exhaust pipe has fallen off, thereby solving the problem of the prior art method for judging the temperature sensing bag of the air conditioner exhaust pipe falling off having a long judgment period, low judgment accuracy and easy omission.

[0101] In some examples, the determination unit includes a first calculation module, a second calculation module and a first determination module. The first calculation module is used to calculate the difference between the temperature of the second exhaust temperature sensing package and the temperature of the first exhaust temperature sensing package to obtain the first exhaust temperature difference; the second calculation module is used to calculate the difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain the first pipe temperature difference; the first determination module is used to determine whether the exhaust temperature sensing package of the air conditioner has fallen off according to the size relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the first pipe temperature difference and the preset pipe temperature difference. By judging whether the temperature of the exhaust temperature sensing package is accurately detected by the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, the judgment efficiency and accuracy can be improved.

[0102] In some examples, the first determination module includes a first determination submodule and a second determination submodule. The first determination submodule is used to determine that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off when the above-mentioned first exhaust temperature difference is greater than the above-mentioned preset exhaust temperature difference and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference; the second determination submodule is used to determine that the exhaust temperature sensing package of the air conditioner has fallen off when the above-mentioned first exhaust temperature difference is less than or equal to the above-mentioned preset exhaust temperature difference and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference, control the above-mentioned air conditioner to shut down, and send out an alarm signal. It can more accurately determine whether the exhaust temperature sensing package has fallen off. In this way, it can distinguish more ambiguous situations, and will not shut down directly but will impose conditional restrictions so that the machine can operate normally, but will prompt the user that there may be an abnormality. Prompt the user to repair in time, etc., thereby improving the reliability of the operation of the air conditioning system.

[0103] In some instances, the device further includes a first acquisition module, a third calculation module, a fourth calculation module and a second determination module, wherein the first acquisition module is used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the magnitude relationship between the temperature of the first exhaust temperature sensing bag and the temperature of the second exhaust temperature sensing bag and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, and then, if it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtain the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a third moment, and obtain the third exhaust temperature sensing bag. temperature, the second inlet temperature and the second outlet temperature, the third moment is the moment after the air conditioner is turned on after the third preset time, and the third preset time is greater than the second preset time; the third calculation module is used to calculate the difference between the third exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature to obtain the second exhaust temperature difference; the fourth calculation module is used to calculate the difference between the second outlet temperature and the second inlet temperature to obtain the second tube temperature difference; the second determination module is used to determine whether the exhaust temperature sensing bag of the air conditioner falls off according to the size relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the second tube temperature difference and the preset tube temperature difference. Ensure the reliability of the air conditioner operation. At the same time, without affecting the user's use, the system operation is limited by preset conditions to avoid damage to the air conditioner. If it is determined that the exhaust temperature sensing bag falls off, the machine will be shut down for processing, and a fault code will be displayed to prompt the user to perform maintenance.

[0104] In some examples, the second determination module includes a third determination submodule and a fourth determination submodule. The third determination submodule is used to determine that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off when the second exhaust temperature difference is greater than the preset exhaust temperature difference and the second pipe temperature difference is greater than the preset pipe temperature difference, and reduce the compressor frequency of the air conditioner; the fourth determination submodule is used to determine that the exhaust temperature sensing package of the air conditioner has fallen off when the second exhaust temperature difference is less than or equal to the preset exhaust temperature difference and the second pipe temperature difference is greater than the preset pipe temperature difference, and control the air conditioner to shut down and send out an alarm signal. In this way, the status of the exhaust temperature sensing package can be continuously monitored, so that when the exhaust temperature sensing package falls off, the machine can be shut down in time for processing, and a fault code can be displayed to prompt the user to perform maintenance.

[0105] In some instances, the device further includes a second acquisition module, a first adjustment module, a second adjustment module and a third adjustment module. The second acquisition module is used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the temperature of the first exhaust temperature sensing bag and the temperature of the second exhaust temperature sensing bag and the relationship between the first inlet pipe temperature and the first outlet pipe temperature. If it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, then acquire the outdoor ambient temperature and the current outdoor fan speed of the air conditioner. The first adjustment module is used to increase the outdoor fan speed of the air conditioner to obtain a first target speed when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold. , the first target speed is the sum of the current external fan speed and the first threshold speed; the second regulating module is used to increase the external fan speed of the air conditioner when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, to obtain the second target speed, the second target speed is the sum of the current external fan speed and the second threshold speed; the second threshold speed is greater than the first threshold speed; the third regulating module is used to increase the external fan speed of the air conditioner when the outdoor ambient temperature is greater than or equal to the third temperature threshold, to obtain the third target speed, the third target speed is the sum of the current external fan speed and the third threshold speed; the third threshold speed is greater than the second threshold speed. This can ensure the reliability of the air conditioner and ensure that the air conditioner can operate normally.

[0106] In some instances, the device further includes a third acquisition module, a fourth adjustment module, a fifth adjustment module and a sixth adjustment module. The third acquisition module is used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the size relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature. If it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, then obtain the outdoor ambient temperature and the current electronic expansion valve opening of the air conditioner. The fourth adjustment module increases the opening of the electronic expansion valve of the air conditioner to obtain the first target opening when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold. The first target opening is the sum of the current electronic expansion valve opening and the first threshold opening; the fifth regulating module is used to increase the electronic expansion valve opening of the air conditioner when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature, to obtain the second target opening, the second target opening is the sum of the current electronic expansion valve opening and the second threshold opening; the second threshold opening is greater than the first threshold opening; the sixth regulating module is used to increase the electronic expansion valve opening of the air conditioner when the outdoor ambient temperature is greater than or equal to the third temperature threshold, to obtain the third target opening, the third target opening is the sum of the current electronic expansion valve opening and the third threshold opening; the third threshold opening is greater than the second threshold opening. This can ensure the reliability of the air conditioner and ensure that the air conditioner can operate normally.

[0107] The device for determining whether the exhaust temperature sensing package of the air conditioner has fallen off comprises a processor and a memory, and the first acquisition unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions. The modules are all located in the same processor; or, the modules are located in different processors in any combination.

[0108] The processor includes a kernel, and the kernel retrieves the corresponding program unit from the memory. One or more kernels can be set, and the kernel parameters can be adjusted to solve the problems of the prior art method for judging the air conditioner exhaust pipe temperature package falling off, such as long judgment cycle, low judgment accuracy, and easy underreporting.

[0109] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0110] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute a method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off.

[0111] An embodiment of the present invention provides a processor, which is used to run a program, wherein when the program is run, a method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off is executed.

[0112] An embodiment of the present invention provides a device, the device including a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the following steps are implemented:

[0113] Step S201, obtaining the temperature of the exhaust temperature sensing package of the air conditioner at a first moment to obtain a first exhaust temperature sensing package temperature, wherein the first moment is a moment after a first preset time has passed since the air conditioner was turned on;

[0114] Step S202, obtaining the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at the second moment, and obtaining the second exhaust temperature sensing package temperature, the first inlet pipe temperature, and the first outlet pipe temperature, wherein the second moment is the moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time;

[0115] Step S203, determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the temperature of the first exhaust temperature sensing bag and the temperature of the second exhaust temperature sensing bag and the relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0116] The devices in this article can be servers, PCs, PADs, mobile phones, etc.

[0117] Optionally, according to the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, it is determined whether the exhaust temperature sensing bag of the air conditioner has fallen off, including: calculating the difference between the second exhaust temperature sensing bag temperature and the first exhaust temperature sensing bag temperature to obtain the first exhaust temperature difference; calculating the difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain the first pipe temperature difference; according to the relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the relationship between the first pipe temperature difference and the preset pipe temperature difference, it is determined whether the exhaust temperature sensing bag of the air conditioner has fallen off.

[0118] Optionally, based on the size relationship between the above-mentioned first exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the above-mentioned first pipe temperature difference and the preset pipe temperature difference, it is determined whether the exhaust temperature sensing bag of the above-mentioned air conditioner has fallen off, including: when the above-mentioned first exhaust temperature difference is greater than the above-mentioned preset exhaust temperature difference, and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the above-mentioned air conditioner has not fallen off and there is a risk of falling off; when the above-mentioned first exhaust temperature difference is less than or equal to the above-mentioned preset exhaust temperature difference, and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the above-mentioned air conditioner has fallen off, the above-mentioned air conditioner is controlled to shut down, and an alarm signal is issued.

[0119] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a third moment, and obtaining the third exhaust temperature sensing bag temperature, the second inlet pipe temperature, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner. temperature and the second outlet pipe temperature, the third moment is the moment after the third preset time has passed after the air conditioner is turned on, and the third preset time is greater than the second preset time; the difference between the third exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature is calculated to obtain the second exhaust temperature difference; the difference between the second outlet pipe temperature and the second inlet pipe temperature is calculated to obtain the second pipe temperature difference; based on the relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the relationship between the second pipe temperature difference and the preset pipe temperature difference, it is determined for the second time whether the exhaust temperature sensing bag of the air conditioner has fallen off.

[0120] Optionally, based on the size relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the second pipe temperature difference and the preset pipe temperature difference, it is determined for the second time whether the exhaust temperature sensing bag of the air conditioner has fallen off, including: when the second exhaust temperature difference is greater than the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, and the compressor frequency of the air conditioner is reduced; when the second exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, and the air conditioner is controlled to shut down and an alarm signal is issued.

[0121] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current outdoor fan speed of the air conditioner; when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold, increasing the outdoor fan speed of the air conditioner to obtain a first target speed, and the first target speed is the current The sum of the external fan speed and the first threshold speed; when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the external fan speed of the air conditioner is increased to obtain a second target speed, and the second target speed is the sum of the current external fan speed and the second threshold speed; the second threshold speed is greater than the first threshold speed; when the outdoor ambient temperature is greater than or equal to the third temperature threshold, the external fan speed of the air conditioner is increased to obtain a third target speed, and the third target speed is the sum of the current external fan speed and the third threshold speed; the third threshold speed is greater than the second threshold speed.

[0122] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current electronic expansion valve opening of the air conditioner; when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold, increasing the opening of the electronic expansion valve of the air conditioner to obtain a first target opening, and the first target opening is the current electronic expansion valve opening. The sum of the electronic expansion valve opening and the first threshold opening; when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a second target opening, and the second target opening is the sum of the current electronic expansion valve opening and the second threshold opening; the second threshold opening is greater than the first threshold opening; when the outdoor ambient temperature is greater than or equal to the third temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a third target opening, and the third target opening is the sum of the current electronic expansion valve opening and the third threshold opening; the third threshold opening is greater than the second threshold opening.

[0123] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0124] Step S201, obtaining the temperature of the exhaust temperature sensing package of the air conditioner at a first moment to obtain a first exhaust temperature sensing package temperature, wherein the first moment is a moment after a first preset time has passed since the air conditioner was turned on;

[0125] Step S202, obtaining the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at the second moment, and obtaining the second exhaust temperature sensing package temperature, the first inlet pipe temperature, and the first outlet pipe temperature, wherein the second moment is the moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time;

[0126] Step S203, determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the temperature of the first exhaust temperature sensing bag and the temperature of the second exhaust temperature sensing bag and the relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0127] Optionally, according to the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, it is determined whether the exhaust temperature sensing bag of the air conditioner has fallen off, including: calculating the difference between the second exhaust temperature sensing bag temperature and the first exhaust temperature sensing bag temperature to obtain the first exhaust temperature difference; calculating the difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain the first pipe temperature difference; according to the relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the relationship between the first pipe temperature difference and the preset pipe temperature difference, it is determined whether the exhaust temperature sensing bag of the air conditioner has fallen off.

[0128] Optionally, based on the size relationship between the above-mentioned first exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the above-mentioned first pipe temperature difference and the preset pipe temperature difference, it is determined whether the exhaust temperature sensing bag of the above-mentioned air conditioner has fallen off, including: when the above-mentioned first exhaust temperature difference is greater than the above-mentioned preset exhaust temperature difference, and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the above-mentioned air conditioner has not fallen off and there is a risk of falling off; when the above-mentioned first exhaust temperature difference is less than or equal to the above-mentioned preset exhaust temperature difference, and the above-mentioned first pipe temperature difference is greater than the above-mentioned preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the above-mentioned air conditioner has fallen off, the above-mentioned air conditioner is controlled to shut down, and an alarm signal is issued.

[0129] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the temperature of the exhaust temperature sensing bag of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a third moment, and obtaining the third exhaust temperature sensing bag temperature, the second inlet pipe temperature, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner. temperature and the second outlet pipe temperature, the third moment is the moment after the third preset time has passed after the air conditioner is turned on, and the third preset time is greater than the second preset time; the difference between the third exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature is calculated to obtain the second exhaust temperature difference; the difference between the second outlet pipe temperature and the second inlet pipe temperature is calculated to obtain the second pipe temperature difference; based on the relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the relationship between the second pipe temperature difference and the preset pipe temperature difference, it is determined for the second time whether the exhaust temperature sensing bag of the air conditioner has fallen off.

[0130] Optionally, based on the size relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the size relationship between the second pipe temperature difference and the preset pipe temperature difference, it is determined for the second time whether the exhaust temperature sensing bag of the air conditioner has fallen off, including: when the second exhaust temperature difference is greater than the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, and the compressor frequency of the air conditioner is reduced; when the second exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, and the air conditioner is controlled to shut down and an alarm signal is issued.

[0131] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current outdoor fan speed of the air conditioner; when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold, increasing the outdoor fan speed of the air conditioner to obtain a first target speed, and the first target speed is the current The sum of the external fan speed and the first threshold speed; when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the external fan speed of the air conditioner is increased to obtain a second target speed, and the second target speed is the sum of the current external fan speed and the second threshold speed; the second threshold speed is greater than the first threshold speed; when the outdoor ambient temperature is greater than or equal to the third temperature threshold, the external fan speed of the air conditioner is increased to obtain a third target speed, and the third target speed is the sum of the current external fan speed and the third threshold speed; the third threshold speed is greater than the second threshold speed.

[0132] Optionally, after determining whether the exhaust temperature sensing bag of the air conditioner has fallen off based on the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: when it is determined that the exhaust temperature sensing bag of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current electronic expansion valve opening of the air conditioner; when the outdoor ambient temperature is greater than or equal to the first temperature threshold and less than the second ambient temperature threshold, increasing the opening of the electronic expansion valve of the air conditioner to obtain a first target opening, and the first target opening is the current electronic expansion valve opening. The sum of the electronic expansion valve opening and the first threshold opening; when the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a second target opening, and the second target opening is the sum of the current electronic expansion valve opening and the second threshold opening; the second threshold opening is greater than the first threshold opening; when the outdoor ambient temperature is greater than or equal to the third temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a third target opening, and the third target opening is the sum of the current electronic expansion valve opening and the third threshold opening; the third threshold opening is greater than the second threshold opening.

[0133] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0134] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0135] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0136] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0137] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0138] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0139] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0140] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0141] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0142] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0143] 1) The method for determining whether the exhaust temperature sensing package of the air conditioner of the present application has fallen off is as follows: first, the temperature of the first exhaust temperature sensing package of the air conditioner is obtained at the first moment, and the first moment is the moment after the first preset time has passed after the air conditioner is turned on; then, the temperature of the second exhaust temperature sensing package of the air conditioner, the first inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the first outlet pipe temperature of the indoor heat exchanger of the air conditioner are obtained at the second moment, and the second moment is the moment after the second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; finally, according to the size relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, it is determined whether the exhaust temperature sensing package of the air conditioner has fallen off. The method determines whether the temperature of the exhaust temperature sensing package is accurately detected by the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger, and the outlet pipe temperature of the indoor heat exchanger, thereby determining the falling off of the exhaust pipe temperature package of the air conditioner, and solves the problem that the judgment method of the falling off of the exhaust pipe temperature package of the air conditioner in the prior art has a long judgment cycle, low judgment accuracy, and easy to miss.

[0144] 2) The device for determining whether the exhaust temperature sensing bag of the air conditioner mentioned above has fallen off in the present application comprises a first acquisition unit, a second acquisition unit and a determination unit, wherein the first acquisition unit is used to acquire the temperature of the first exhaust temperature sensing bag of the air conditioner at a first moment, and the first moment is the moment after a first preset time has passed after the air conditioner is turned on; the second acquisition unit is used to acquire the second exhaust temperature sensing bag temperature of the air conditioner, the first inlet pipe temperature of the indoor heat exchanger of the air conditioner and the first outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second moment, and the second moment is the moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; the determination unit is used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off according to the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature. The device determines whether the temperature of the exhaust temperature sensing bag is accurately detected by measuring the changes in the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, thereby determining whether the temperature sensing bag of the air conditioner exhaust pipe has fallen off, thereby solving the problem of the prior art method for judging the temperature sensing bag of the air conditioner exhaust pipe falling off having a long judgment period, low judgment accuracy and easy omission.

[0145] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining whether the exhaust temperature sensing package of an air conditioner has fallen off, characterized in that: include: Acquire the temperature of the exhaust temperature sensing package of the air conditioner at a first moment to obtain a first exhaust temperature sensing package temperature, wherein the first moment is a moment after a first preset time has passed since the air conditioner was turned on; At a second moment, the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner are obtained to obtain a second exhaust temperature sensing package temperature, a first inlet pipe temperature, and a first outlet pipe temperature, wherein the second moment is a moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; Whether the exhaust temperature sensing package of the air conditioner falls off is determined based on the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature.

2. The method according to claim 1, characterized in that Determining whether the exhaust temperature sensing package of the air conditioner falls off according to the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature includes: Calculating the difference between the temperature of the second exhaust temperature sensing package and the temperature of the first exhaust temperature sensing package to obtain a first exhaust temperature difference; Calculating the difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain a first pipe temperature difference; Whether the exhaust temperature sensing package of the air conditioner falls off is determined based on the magnitude relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the first pipe temperature difference and the preset pipe temperature difference.

3. The method according to claim 2, characterized in that Determining whether the exhaust temperature sensing package of the air conditioner falls off according to the magnitude relationship between the first exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the first pipe temperature difference and the preset pipe temperature difference includes: When the first exhaust temperature difference is greater than the preset exhaust temperature difference, and the first pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off; When the first exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the first pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, the air conditioner is controlled to shut down, and an alarm signal is issued.

4. The method according to claim 1, characterized in that: After determining whether the exhaust temperature sensing package of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: When it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner are obtained at a third moment to obtain a third exhaust temperature sensing package temperature, a second inlet pipe temperature, and a second outlet pipe temperature, wherein the third moment is a moment after a third preset time has passed after the air conditioner is turned on, and the third preset time is greater than the second preset time; Calculating the difference between the temperature of the third exhaust temperature sensing package and the temperature of the second exhaust temperature sensing package to obtain a second exhaust temperature difference; Calculating the difference between the second outlet pipe temperature and the second inlet pipe temperature to obtain a second pipe temperature difference; According to the magnitude relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the second pipe temperature difference and the preset pipe temperature difference, it is secondarily determined whether the exhaust temperature sensing package of the air conditioner has fallen off.

5. The method according to claim 4, characterized in that Secondarily determining whether the exhaust temperature sensing package of the air conditioner falls off according to the magnitude relationship between the second exhaust temperature difference and the preset exhaust temperature difference and the magnitude relationship between the second pipe temperature difference and the preset pipe temperature difference includes: When the second exhaust temperature difference is greater than the preset exhaust temperature difference and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, and the compressor frequency of the air conditioner is reduced; When the second exhaust temperature difference is less than or equal to the preset exhaust temperature difference, and the second pipe temperature difference is greater than the preset pipe temperature difference, it is determined that the exhaust temperature sensing bag of the air conditioner has fallen off, and the air conditioner is controlled to shut down and send an alarm signal.

6. The method according to claim 1, characterized in that After determining whether the exhaust temperature sensing package of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: When it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current external fan speed of the air conditioner; When the outdoor ambient temperature is greater than or equal to a first temperature threshold and less than a second ambient temperature threshold, increasing the speed of the outdoor fan of the air conditioner to obtain a first target speed, wherein the first target speed is the sum of the current speed of the outdoor fan and the first threshold speed; When the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the external fan speed of the air conditioner is increased to obtain a second target speed, wherein the second target speed is the sum of the current external fan speed and the second threshold speed; the second threshold speed is greater than the first threshold speed; When the outdoor ambient temperature is greater than or equal to the third temperature threshold, the external fan speed of the air conditioner is increased to obtain a third target speed, wherein the third target speed is the sum of the current external fan speed and the third threshold speed; the third threshold speed is greater than the second threshold speed.

7. The method according to claim 1, characterized in that After determining whether the exhaust temperature sensing package of the air conditioner has fallen off based on the magnitude relationship between the first exhaust temperature sensing package temperature and the second exhaust temperature sensing package temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further includes: When it is determined that the exhaust temperature sensing package of the air conditioner has not fallen off and there is a risk of falling off, obtaining the outdoor ambient temperature and the current opening of the electronic expansion valve of the air conditioner; When the outdoor ambient temperature is greater than or equal to a first temperature threshold and less than a second ambient temperature threshold, increasing the opening of the electronic expansion valve of the air conditioner to obtain a first target opening, wherein the first target opening is the sum of the current opening of the electronic expansion valve and the first threshold opening; When the outdoor ambient temperature is greater than or equal to the second temperature threshold and less than the third ambient temperature threshold, the electronic expansion valve opening of the air conditioner is increased to obtain a second target opening, wherein the second target opening is the sum of the current electronic expansion valve opening and the second threshold opening; the second threshold opening is greater than the first threshold opening; When the outdoor ambient temperature is greater than or equal to the third temperature threshold, the opening of the electronic expansion valve of the air conditioner is increased to obtain a third target opening, wherein the third target opening is the sum of the current electronic expansion valve opening and the third threshold opening; the third threshold opening is greater than the second threshold opening.

8. A device for determining whether the exhaust temperature sensing package of an air conditioner has fallen off, characterized in that: include: A first acquisition unit is used to acquire the temperature of the exhaust temperature sensing package of the air conditioner at a first moment to obtain a first exhaust temperature sensing package temperature, wherein the first moment is a moment after a first preset time has passed after the air conditioner is turned on; A second acquisition unit is used to acquire the temperature of the exhaust temperature sensing package of the air conditioner, the inlet pipe temperature of the indoor heat exchanger of the air conditioner, and the outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second moment, to obtain a second exhaust temperature sensing package temperature, a first inlet pipe temperature, and a first outlet pipe temperature, wherein the second moment is a moment after a second preset time has passed after the air conditioner is turned on, and the second preset time is greater than the first preset time; A determination unit is used to determine whether the exhaust temperature sensing bag of the air conditioner has fallen off according to the relationship between the first exhaust temperature sensing bag temperature and the second exhaust temperature sensing bag temperature and the relationship between the first inlet pipe temperature and the first outlet pipe temperature.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off as described in any one of claims 1 to 7.

10. An electronic device, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for determining whether the exhaust temperature sensing package of the air conditioner has fallen off as described in any one of claims 1 to 7.

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