Method and device for determining whether a temperature sensing bulb of an air conditioner is detached

Abstract

The application provides a method and device for determining whether an air conditioner exhaust temperature sensing bag falls off, which comprises the following steps: obtaining a first exhaust temperature sensing bag temperature of an air conditioner at a first time, the first time being a time after the air conditioner is started for a first preset time length; obtaining a second exhaust temperature sensing bag temperature of the air conditioner, a first inlet pipe temperature of an indoor heat exchanger of the air conditioner and a first outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second time, the second time being a time after the air conditioner is started for a second preset time length; and determining whether the exhaust temperature sensing bag of the air conditioner falls off 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. The method determines whether the temperature of the exhaust temperature sensing bag is accurately detected by the change of the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, so as to determine the falling-off condition of the exhaust pipe temperature bag of the air conditioner.

Description

TECHNICAL FIELD

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

[0002] Existing air conditioners are detected when they are shipped, but in the case of installation or after-sales maintenance, the exhaust temperature sensing bulb may not be installed correctly or in place, and in some cases, it may fall off after transportation.

[0003] In the prior art, the determination of whether the air conditioner exhaust pipe temperature sensing bulb has fallen off requires a long period of time, and in some cases, the problem cannot be determined. If the exhaust temperature sensing bulb falls off or other abnormal conditions occur, but the system does not provide a prompt, the system can work normally, but long-term operation may cause the compressor to burn out. SUMMARY

[0004] The main purpose of the present application is to provide a method for determining whether an air conditioner exhaust temperature sensing bulb has fallen off, a device for determining whether an air conditioner exhaust temperature sensing bulb has fallen off, a computer readable storage medium and an electronic device, to at least solve the problem of long determination period and low accuracy of the existing method for determining whether an air conditioner exhaust pipe temperature sensing bulb has fallen off.

[0005] To achieve the above purpose, according to one aspect of the present application, a method for determining whether an air conditioner exhaust temperature sensing bulb has fallen off is provided, comprising: obtaining the temperature of the exhaust temperature sensing bulb of the air conditioner at a first time to obtain a first exhaust temperature sensing bulb temperature, the first time being a time after the air conditioner is turned on for a first predetermined time; obtaining the temperature of the exhaust temperature sensing bulb 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 time to obtain a second exhaust temperature sensing bulb temperature, a first inlet pipe temperature and a first outlet pipe temperature, the second time being a time after the air conditioner is turned on for a second predetermined time, the second predetermined time being greater than the first predetermined time; determining whether the exhaust temperature sensing bulb of the air conditioner has fallen off according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0006] Optionally, determining whether the exhaust temperature bulb of the air conditioner is detached according to the magnitude relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature comprises: calculating a difference between the second exhaust temperature bulb temperature and the first exhaust temperature bulb temperature to obtain a first exhaust temperature difference; calculating a difference between the first outlet pipe temperature and the first inlet pipe temperature to obtain a first pipe temperature difference; and determining whether the exhaust temperature bulb of the air conditioner is detached according to the magnitude relationship between the first exhaust temperature difference and a preset exhaust temperature difference and the magnitude relationship between the first pipe temperature difference and a preset pipe temperature difference.

[0007] Optionally, determining whether the exhaust temperature bulb of the air conditioner is detached according to the magnitude relationship between the first exhaust temperature difference and a preset exhaust temperature difference and the magnitude relationship between the first pipe temperature difference and a preset pipe temperature difference comprises: in the case that 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, determining that the exhaust temperature bulb of the air conditioner is not detached but has a risk of being detached; and in the case that 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, determining that the exhaust temperature bulb of the air conditioner is detached, controlling the air conditioner to stop running, and sending an alarm signal.

[0008] Optionally, after determining whether the exhaust temperature bulb of the air conditioner is detached according to the magnitude relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature bulb of the air conditioner is not detached but has a risk of being detached, acquiring the temperature of the exhaust temperature bulb 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 time to obtain a third exhaust temperature bulb temperature, a second inlet pipe temperature and a second outlet pipe temperature, the third time being a time after the air conditioner is started for a third preset time length, and the third preset time length being greater than the second preset time length; calculating a difference between the third exhaust temperature bulb temperature and the second exhaust temperature bulb temperature to obtain a second exhaust temperature difference; calculating a 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 bulb of the air conditioner is detached again according to the magnitude relationship between the second exhaust temperature difference and a preset exhaust temperature difference and the magnitude relationship between the second pipe temperature difference and a preset pipe temperature difference.

[0009] Optionally, according to 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, the method further comprises: determining that the exhaust temperature bulb of the air conditioner has not fallen off and has a falling risk and reducing the compressor frequency of the air conditioner 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; determining that the exhaust temperature bulb of the air conditioner has fallen off and controlling the air conditioner to stop and sending an alarm signal 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.

[0010] Optionally, after determining whether the exhaust temperature bulb of the air conditioner has fallen off according to the size relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the size relationship between the first pipe inlet temperature and the first pipe outlet temperature, the method further comprises: acquiring the outdoor environment temperature of the air conditioner and the current outdoor fan speed when it is determined that the exhaust temperature bulb of the air conditioner has not fallen off and has a falling risk; increasing the outdoor fan speed of the air conditioner to obtain a first target speed when the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second temperature threshold, the first target speed being the sum of the current outdoor fan speed and a first threshold speed; increasing the outdoor fan speed of the air conditioner to obtain a second target speed when the outdoor environment temperature is greater than or equal to a second temperature threshold and less than a third temperature threshold, the second target speed being the sum of the current outdoor fan speed and a second threshold speed; the second threshold speed being greater than the first threshold speed; increasing the outdoor fan speed of the air conditioner to obtain a third target speed when the outdoor environment temperature is greater than or equal to a third temperature threshold, the third target speed being the sum of the current outdoor fan speed and a third threshold speed; the third threshold speed being greater than the second threshold speed.

[0011] Optionally, after determining whether the exhaust temperature sensing bulb of the air conditioner is detached according to the magnitude relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature sensing bulb of the air conditioner is not detached but has a risk of being detached, acquiring an outdoor environment temperature of the air conditioner and a current electronic expansion valve opening degree; in the case that the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second environment threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a first target opening degree, the first target opening degree being a sum of the current electronic expansion valve opening degree and a first threshold opening degree; in the case that the outdoor environment temperature is greater than or equal to the second temperature threshold and less than a third environment threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a second target opening degree, the second target opening degree being a sum of the current electronic expansion valve opening degree and a second threshold opening degree; the second threshold opening degree being greater than the first threshold opening degree; in the case that the outdoor environment temperature is greater than or equal to the third temperature threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a third target opening degree, the third target opening degree being a sum of the current electronic expansion valve opening degree and a third threshold opening degree; the third threshold opening degree being greater than the second threshold opening degree.

[0012] According to another aspect of the present application, there is provided a device for determining whether an exhaust temperature sensing bulb of an air conditioner is detached, comprising: a first acquisition unit configured to acquire a temperature of an exhaust temperature sensing bulb of an air conditioner at a first time to obtain a first exhaust temperature sensing bulb temperature, the first time being a time after the air conditioner is turned on for a first preset time length; a second acquisition unit configured to acquire a temperature of the exhaust temperature sensing bulb of the air conditioner, an inlet pipe temperature of an indoor heat exchanger of the air conditioner and an outlet pipe temperature of the indoor heat exchanger of the air conditioner at a second time to obtain a second exhaust temperature sensing bulb temperature, a first inlet pipe temperature and a first outlet pipe temperature, the second time being a time after the air conditioner is turned on for a second preset time length, the second preset time length being greater than the first preset time length; and a determination unit configured to determine whether the exhaust temperature sensing bulb of the air conditioner is detached according to a magnitude relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and a magnitude relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0013] According to another aspect of the present application, there is provided a computer readable storage medium comprising a stored program, wherein the program, when executed, controls a device in which the computer readable storage medium is located to perform any of the methods for determining whether an exhaust temperature sensing bulb of an air conditioner is detached.

[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 configured to be executed by the one or more processors, and the one or more programs comprise a program for performing any one of the methods for determining whether the exhaust temperature sensing bulb of the air conditioner falls off.

[0015] According to the technical solution of the present application, the method for determining whether the exhaust temperature sensing bulb of the air conditioner falls off, first, the first exhaust temperature sensing bulb temperature of the air conditioner is obtained at a first time, and the first time is a time after the air conditioner is started for a first preset time length; then, the second exhaust temperature sensing bulb 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 are obtained at a second time, and the second time is a time after the air conditioner is started for a second preset time length, and the second preset time length is greater than the first preset time length; finally, whether the exhaust temperature sensing bulb of the air conditioner falls off is determined according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature. The method determines whether the temperature of the exhaust temperature sensing bulb is accurately detected by the changes of 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 condition of the exhaust temperature sensing bulb of the air conditioner, and solving the problems of long determination period and low determination accuracy of the falling-off condition of the exhaust temperature sensing bulb of the air conditioner in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings illustrate an exemplary embodiment of the present application and, together with the description, serve to explain the application. In the drawings:

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

[0018] Figure 2 A flowchart of a method for determining whether the exhaust temperature sensing bulb of the air conditioner falls off is shown according to an embodiment of the present application;

[0019] Figure 3 A flowchart of a method for adjusting the rotation speed of the outdoor fan of the air conditioner is shown according to an embodiment of the present application;

[0020] Figure 4 A flowchart of a method for adjusting the electronic expansion valve of the air conditioner is shown according to an embodiment of the present application;

[0021] Figure 5A flow diagram of another method for determining whether an air conditioner exhaust temperature bulb falls off is shown according to an embodiment of the application.

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

[0023] In the above drawings, the following reference signs are used:

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

[0025] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The technical solutions in the embodiments of 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 present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0028] As described in the background section, existing technologies detect the exhaust temperature sensor after the entire unit has run at a certain frequency, compare it with the initial exhaust temperature, and then compare the comparison value with a preset value to determine if the exhaust temperature sensor has detached. If the exhaust temperature comparison value is less than the set value, it is necessary to compare the cooling outlet temperature (for cooling) or the heating pipe temperature with the exhaust temperature. Only if the comparison value is greater than the preset value is it determined that the temperature sensor has not detached. Otherwise, it is determined that the temperature sensor may have detached, and further confirmation is needed. This involves using the pipe temperature and exhaust temperature difference to determine if there is no problem. If the difference is less than the preset value, it is determined 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 sensor has detached. The frequency needs to be increased to a preset frequency of 2, and after a preset time of 2, the exhaust temperature difference is checked again. If the exhaust temperature difference is greater than the preset value, it is determined that there is no problem. Otherwise, it is necessary to compare the pipe temperature and exhaust temperature values. If the difference is less than the preset value, it is determined that there is no problem; otherwise, an alarm is triggered.

[0029] The above judgment requires a long time period and there are still some situations where it cannot be judged. If abnormalities such as the exhaust temperature sensor falling off occur but the system does not make a judgment or prompt, the system can still work normally, but prolonged operation may pose a risk of burning out the compressor.

[0030] To address the problems of long judgment cycles, low accuracy, and easy omissions in existing methods for determining whether the exhaust temperature sensor of an air conditioner has detached, embodiments of this application provide a method for determining whether the exhaust temperature sensor of an air conditioner has detached, a device for determining whether the exhaust temperature sensor of an air conditioner has detached, a computer-readable storage medium, and an electronic device.

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

[0032] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for a method of determining whether an air conditioner exhaust temperature sensor has detached, according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the sameFigure 1 different configurations.

[0033] The memory 104 can be used to store computer programs, such as software programs of application software and modules, such as the computer program corresponding to the method for determining whether the air conditioner exhaust temperature sensing bulb falls off in the embodiments of the present application. The processor 102 can execute various functional applications and data processing, i.e., implement the above method, by running the computer program stored in the memory 104. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include a memory remotely arranged with respect to the processor 102, and the remote memory can be connected to the mobile terminal through a network. Examples of the 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 through a network. The specific examples of the network can include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (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 can be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

[0034] In the embodiments, a method for determining whether an air conditioner exhaust temperature sensing bulb falls off is provided, which is run on a mobile terminal, a computer terminal, or a similar computing device. 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 herein can be executed in an order different from that shown.

[0035] Figure 2 is a flowchart of the method for determining whether an air conditioner exhaust temperature sensing bulb falls off according to the embodiments of the present application. As shown in the figure, the method includes the following steps: Figure 2

[0036] In step S201, the temperature of the exhaust temperature sensing bulb of the air conditioner is acquired at a first time, to obtain a first exhaust temperature sensing bulb temperature, and the first time is a time after the air conditioner is started for a first preset time length.

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

[0038] ​Step S202, obtaining the temperature of the exhaust temperature bulb 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 time, obtaining the second exhaust temperature bulb temperature, the first inlet pipe temperature and the first outlet pipe temperature, the second time being a time after the air conditioner is started for a second preset time period, the second preset time period being greater than the first preset time period;

[0039] Specifically, the second preset time period can be 10 min. By comparing the temperatures of the exhaust temperature bulbs at the two times, the difference between the temperatures detected by the exhaust temperature bulbs at the two times can be determined. If the difference is large, it proves that the exhaust temperature bulb can detect the temperature difference, and it proves that the exhaust temperature bulb has not fallen off. If the difference is small, it proves that the temperature difference detected by the exhaust temperature bulb is small, which proves that the exhaust temperature bulb has fallen off or has a risk of falling off.

[0040] The first time and the second time should be times when the air conditioner has not yet stabilized, at which time the temperature difference normally collected by the exhaust temperature bulb is large, and the determination can be more accurate.

[0041] Step S203, determining whether the exhaust temperature bulb of the air conditioner has fallen off according to the size relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0042] Specifically, this can distinguish between more ambiguous cases, and instead of directly shutting down, the machine can be allowed to operate normally under certain conditions, but the user will be prompted that there may be an abnormality. Prompting the user to repair in a timely manner, etc., thereby improving the reliability of the air conditioning system operation.

[0043] The first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature, and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, whether the exhaust temperature bulb of the air conditioner has fallen off, includes the following steps:

[0044] Step S301, calculating the difference between the second exhaust temperature bulb temperature and the first exhaust temperature bulb temperature 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 bulb of the air conditioner has fallen off according to the size relationship between the first exhaust temperature difference and a preset exhaust temperature difference and the size relationship between the first pipe temperature difference and a preset pipe temperature difference.

[0047] Specifically, whether the temperature of the exhaust temperature sensing bulb is accurately detected is determined by changes in the exhaust temperature, the temperature of the indoor unit heat exchanger inlet pipe, and the temperature of the indoor unit heat exchanger outlet pipe, so that the determination efficiency and accuracy can be improved.

[0048] The determination of whether the exhaust temperature sensing bulb of the air conditioner falls off is determined 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, and includes the following steps:

[0049] In 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 bulb of the air conditioner has not fallen off but has a risk of falling off.

[0050] In step S3032, 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 bulb of the air conditioner has fallen off, the air conditioner is controlled to stop, and an alarm signal is sent.

[0051] Specifically, the preset exhaust temperature difference ΔT 排气 may be set to about 5℃, and the preset pipe temperature difference ΔT 管温 may be set to about 6℃. Increasing the temperature difference between the inlet pipe and the outlet pipe of the indoor unit heat exchanger of the air conditioner can more accurately determine whether the exhaust temperature sensing bulb falls off. In this way, ambiguous cases can be distinguished, and the machine can operate normally under conditional restrictions, but the user will be prompted to check for abnormalities in a timely manner, thereby improving the reliability of the air conditioning system.

[0052] It should be noted that ΔT 排气 is a preset temperature. When the temperature difference of the exhaust temperature sensing bulb is not greater than this value, it indicates that the temperature variation amplitude of the exhaust temperature sensing bulb is very small. However, during the normal operation stage, the exhaust temperature increases greatly, but the exhaust temperature variation amplitude is very small at this time, indicating that the temperature detected by the exhaust temperature sensing bulb is not accurate. At the same time, when the air conditioning system detects that the exhaust temperature is greatly different from the target exhaust temperature, the number of steps of the electronic expansion valve is reduced to increase the exhaust temperature. Continuous reduction of the number of steps of the electronic expansion valve will cause the refrigerant in the system to overheat, and the temperature of the outlet pipe of the indoor unit heat exchanger will be higher than the temperature of the inlet pipe of the indoor unit heat exchanger, that is, the temperature difference between the inlet pipe and the outlet pipe of the indoor unit heat exchanger is greater than the preset ΔT 管温 . Therefore, by judging the temperature variation amplitude of the exhaust temperature sensing bulb and the temperature difference between the inlet pipe and the outlet pipe of the indoor unit heat exchanger, if both satisfy the preset temperature condition, it can be determined that the temperature detected by the exhaust temperature sensing bulb is inaccurate, that is, the exhaust temperature sensing bulb has fallen off. It should be noted that ΔT 排气 and ΔT 管温 are both greater than 0.

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

[0054] In the case that the first exhaust temperature is less than or equal to the preset exhaust temperature difference, it is proved that the temperature difference detected by the exhaust temperature bulb is very small, and almost no temperature difference is detected. At this time, if the actual temperature of the real air conditioner indoor heat exchanger inlet and outlet pipe is actually larger, it is proved that the exhaust temperature bulb falls off.

[0055] In the case that the first exhaust temperature difference is greater than the preset exhaust temperature difference, it is proved that the exhaust temperature bulb can detect the temperature difference between the inlet and outlet pipes of the indoor heat exchanger, and it is proved that the exhaust temperature bulb does not fall off. If the first pipe temperature difference is less than the preset pipe temperature difference at this time, it is proved that the actual temperature change of the real air conditioner indoor heat exchanger inlet and outlet pipe is not very large, and the exhaust temperature bulb can also detect basically the same temperature change, so it can be proved that the exhaust temperature bulb does not have a risk of falling off, that is, the exhaust temperature bulb is normal.

[0056] After determining whether the exhaust temperature bulb of the air conditioner falls off according to the size relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises the following steps:

[0057] Step S401, in the case that it is determined that the exhaust temperature bulb of the air conditioner does not fall off and has a risk of falling off, the temperature of the exhaust temperature bulb 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 time, to obtain a third exhaust temperature bulb temperature, a second inlet pipe temperature and a second outlet pipe temperature, the third time is a time after the air conditioner is started for a third preset time length, and the third preset time length is greater than the second preset time length;

[0058] Step S402, calculating the difference between the third exhaust temperature bulb temperature and the second exhaust temperature bulb temperature 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, according to 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, the exhaust temperature bulb of the air conditioner is determined again whether to fall off.

[0061] Specifically, the third preset time length can be set to 11 min. When the exhaust temperature bulb is detected to have a risk of falling off at the second time, the second exhaust temperature difference and the second pipe temperature difference are continuously acquired in real time, the state of the exhaust temperature bulb can be continuously monitored, the compressor frequency, the outdoor fan speed, and the throttling degree of the electronic expansion valve are adjusted when the exhaust temperature bulb has a risk of falling off, and the reliability of the air conditioner operation is ensured. At the same time, the system operation is limited by the preset condition without affecting the use of the user, so as to avoid damage to the air conditioner. If it is judged that the exhaust temperature bulb falls off, the machine is stopped and a fault code is displayed to prompt the user to repair.

[0062] Wherein, according to 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, the exhaust temperature bulb of the air conditioner is determined again whether to fall off, including the following steps:

[0063] Step S4041, in the case that 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 bulb of the air conditioner has not fallen off and has a risk of falling off, and the compressor frequency of the air conditioner is reduced.

[0064] Step S4042, in the case that 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 bulb of the air conditioner has fallen off, and the air conditioner is controlled to stop and an alarm signal is sent.

[0065] Specifically, the state of the exhaust temperature bulb can be continuously monitored so as to stop the machine in time and display a fault code to prompt the user to repair when the exhaust temperature bulb falls off.

[0066] Wherein, after determining whether the exhaust temperature bulb of the air conditioner falls off according to the size relationship between the first exhaust temperature bulb and the second exhaust temperature bulb and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises the following steps:

[0067] Step S501, in the case that it is determined that the exhaust temperature bulb of the air conditioner has not fallen off and has a risk of falling off, the outdoor environment temperature of the air conditioner and the current outdoor fan speed are acquired.

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

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

[0070] Step S504, in the case that the outdoor environment 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, the third target speed being the sum of the current outdoor fan speed and a third threshold speed; the third threshold speed being greater than the second threshold speed.

[0071] Specifically, this can ensure the reliability of the air conditioner and ensure normal operation of the air conditioner. In some examples, the parameters can be set as follows: the first temperature threshold is 30℃, the second temperature threshold is 40℃, the third temperature threshold is 48℃, 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 outdoor fan speed control is as shown in Table 1: Figure 3 and Table 1:

[0073] Table 1

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

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

[0076] Wherein, after determining 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, the method further comprises the following steps:

[0077] Step S601, in the case that it is determined that the exhaust temperature-sensing bulb of the air conditioner is not detached and there is a risk of detachment, the outdoor environment temperature of the air conditioner and the current electronic expansion valve opening degree are obtained;

[0078] Step S602, in the case that the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second environment threshold, the electronic expansion valve opening degree of the air conditioner is increased to obtain a first target opening degree, the first target opening degree being the sum of the current electronic expansion valve opening degree and a first threshold opening degree;

[0079] Step S603, in the case that the outdoor environment temperature is greater than or equal to a second temperature threshold and less than a third environment threshold, the electronic expansion valve opening degree of the air conditioner is increased to obtain a second target opening degree, the second target opening degree being the sum of the current electronic expansion valve opening degree and a second threshold opening degree; the second threshold opening degree is greater than the first threshold opening degree;

[0080] Step S604, in the case that the outdoor environment temperature is greater than or equal to a third temperature threshold, the electronic expansion valve opening degree of the air conditioner is increased to obtain a third target opening degree, the third target opening degree being the sum of the current electronic expansion valve opening degree and a third threshold opening degree; the third threshold opening degree is greater than the second threshold opening degree.

[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 as follows: the first temperature threshold is 30℃, the second temperature threshold is 40℃, the third temperature threshold is 48℃, the first threshold opening degree can be 25B, the second threshold opening degree can be 35B, and the third threshold opening degree can be 45B.

[0082] Specific electronic expansion valve control is as shown in Table 1 and Table 2: Figure 4 and Table 2:

[0083] Table 2

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

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

[0086] The method for determining whether the air conditioner exhaust temperature sensing bulb falls off according to the present application first acquires the first exhaust temperature sensing bulb temperature of the air conditioner at a first time, which is a time after the air conditioner is started for a first preset time length; then acquires the second exhaust temperature sensing bulb 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 time, which is a time after the air conditioner is started for a second preset time length, the second preset time length being greater than the first preset time length; and finally determines whether the exhaust temperature sensing bulb of the air conditioner falls off according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature. The method determines whether the temperature of the exhaust temperature sensing bulb is accurately detected by the changes of 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 condition of the exhaust pipe temperature bulb of the air conditioner, and solving the problems of long determination period and low determination accuracy of the falling-off condition of the exhaust pipe temperature bulb of the air conditioner in the prior art.

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

[0088] The present embodiment relates to a specific method for determining whether the air conditioner exhaust temperature sensing bulb falls off, as shown in Figure 5 , comprising the following steps:

[0089] S01, detecting the exhaust temperature sensing bulb temperature T 排气1 at the air conditioner start time t1min;

[0090] S02, detecting the exhaust temperature sensing bulb temperature T 排气2 , the indoor heat exchanger inlet pipe temperature T 进管1 and the indoor heat exchanger outlet pipe temperature T 出管1 at the air conditioner start time t2min, and calculating the difference ΔT 排气1 between the exhaust temperature sensing bulb temperature T 排气1 and T 排气2 , and the difference ΔT 管温1 between the indoor heat exchanger outlet pipe temperature T 出管1 and the indoor heat exchanger inlet pipe temperature T 进管1 ;

[0091] S03, calculating the difference between ΔT 排气1 and the preset ΔT 排气 , the difference between ΔT 管温1 and the preset ΔT 管温 , and if ΔT 排气1 -ΔT 排气 > 0, ΔT 管温1 -ΔT管温 > 0, the exhaust temperature sensing bulb is falling off, stop processing, and display a fault code; 排气1 - ΔT 排气 ≤ 0, ΔT 管温1 - ΔT 管温 > 0, the exhaust temperature sensing bulb is falling off, stop processing, and display a fault code;

[0092] S04, detecting the exhaust temperature sensing bulb temperature T 排气3 at t3min, the indoor heat exchanger inlet pipe temperature T 进管2 and the indoor heat exchanger outlet pipe temperature T 出管2 , and calculating the difference ΔT 排气3 between T 排气2 and T 排气2 , the difference ΔT 出管2 between T 进管2 and T 管温2 ;

[0093] S05, calculating the difference between ΔT 排气2 and a preset ΔT 排气 , the difference between ΔT 管温2 and a preset ΔT 管温 , if ΔT 排气2 - ΔT 排气 > 0, ΔT 管温2 - ΔT 管温 > 0, the exhaust temperature sensing bulb is falling off, stop processing, and display a fault code; 排气2 - ΔT 排气 ≤ 0, ΔT 管温2 - ΔT 管温 > 0, the exhaust temperature sensing bulb is falling off, stop processing,

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

[0095] S07, detecting the current outdoor environment temperature, and performing control on the outdoor fan rotating speed and the electronic expansion valve.

[0096] The above embodiment optimizes the existing exhaust temperature sensing bulb falling or abnormal judgment logic, improves the judgment efficiency and accuracy, and solves the problems of long judgment period and low judgment accuracy. The exhaust temperature, the indoor heat exchanger inlet pipe temperature and the indoor heat exchanger outlet pipe temperature are used to judge whether the exhaust temperature sensing bulb temperature is detected accurately; if it is judged that the exhaust temperature sensing bulb is falling off, stop processing, and display a fault code to prompt the user to repair; if it is judged that the exhaust temperature sensing bulb is at risk of falling off, the compressor frequency, the outdoor fan rotating speed and the electronic expansion valve throttling degree are adjusted to ensure the reliability of the air conditioner operation. At the same time, without affecting the use of the user, the system operation is limited by the preset conditions to avoid damage to the air conditioner.

[0097] The embodiment of the present application further provides a device for determining whether the exhaust temperature sensing bulb of an air conditioner falls off. It should be noted that the device for determining whether the exhaust temperature sensing bulb of an air conditioner falls off can be used to execute the method for determining whether the exhaust temperature sensing bulb of an air conditioner falls off provided by the embodiment of the present application. The device is used to realize the above-mentioned embodiment and preferred embodiment, and will not be described here again. As used below, the term "module" can be a combination of software and / or hardware that realizes a predetermined function. Although the device described in the following embodiment is preferably realized in software, realization in hardware or a combination of software and hardware is also possible and is contemplated.

[0098] The device for determining whether the exhaust temperature sensing bulb of an air conditioner falls off provided by the embodiment of the present application is described below.

[0099] Figure 6 is a schematic diagram of the device for determining whether the exhaust temperature sensing bulb of an air conditioner falls off according to the embodiment of the present application. As shown in Figure 6 the device includes a first acquisition unit 10, a second acquisition unit 20 and a determination unit 30. The first acquisition unit 10 is configured to acquire the temperature of the exhaust temperature sensing bulb of an air conditioner at a first time, to obtain a first exhaust temperature sensing bulb temperature. The first time is a time after the air conditioner is started for a first preset time length. The second acquisition unit 20 is configured to acquire the temperature of the exhaust temperature sensing bulb 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 time, to obtain a second exhaust temperature sensing bulb temperature, a first inlet pipe temperature and a first outlet pipe temperature. The second time is a time after the air conditioner is started for a second preset time length. The second preset time length is greater than the first preset time length. The determination unit 30 is configured to determine whether the exhaust temperature sensing bulb of the air conditioner falls off according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0100] The determination device for whether the air outlet temperature sensing bulb of the air conditioner in the present application includes a first obtaining unit, a second obtaining unit and a determination unit. The first obtaining unit is used to obtain the first air outlet temperature sensing bulb temperature of the air conditioner at a first time, which is a time after the air conditioner is started for a first preset time length. The second obtaining unit is used to obtain the second air outlet temperature sensing bulb 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 time, which is a time after the air conditioner is started for a second preset time length, and the second preset time length is greater than the first preset time length. The determination unit is used to determine whether the air outlet temperature sensing bulb of the air conditioner is detached according to the size relationship between the first air outlet temperature sensing bulb temperature and the second air outlet temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature. The device determines whether the air outlet temperature sensing bulb of the air conditioner is detached by judging the changes of the air outlet temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, thereby determining the detachment of the air outlet pipe temperature bulb of the air conditioner, and solving the problems of long judgment period, low judgment accuracy and easy to miss report in the prior art.

[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 second air outlet temperature sensing bulb temperature and the first air outlet temperature sensing bulb temperature to obtain a first air outlet 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 a first pipe temperature difference. The first determination module is used to determine whether the air outlet temperature sensing bulb of the air conditioner is detached according to the size relationship between the first air outlet temperature difference and a preset air outlet temperature difference and the size relationship between the first pipe temperature difference and a preset pipe temperature difference. The temperature of the air outlet temperature sensing bulb is judged to be accurate or not by judging the changes of the air outlet temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, which can improve the judgment efficiency and accuracy.

[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 air outlet temperature sensing bulb of the air conditioner is not detached and has a detachment risk when the first air outlet temperature difference is greater than the preset air outlet temperature difference and the first pipe temperature difference is greater than the preset pipe temperature difference. The second determination submodule is used to determine that the air outlet temperature sensing bulb of the air conditioner is detached, control the air conditioner to stop and send an alarm signal when the first air outlet temperature difference is less than or equal to the preset air outlet temperature difference and the first pipe temperature difference is greater than the preset pipe temperature difference. The detachment of the air outlet temperature sensing bulb can be determined more accurately. This can distinguish between ambiguous situations and will not directly stop but will perform conditional restrictions so that the machine can operate normally, but will prompt the user that there may be an abnormality. The user is prompted to repair in time, thereby improving the reliability of the air conditioning system operation.

[0103] In some examples, the device further comprises a first obtaining module, a third calculating module, a fourth calculating module and a second determining module. The first obtaining module is configured to, in the case where it is determined that the exhaust temperature sensing bulb of the air conditioner has not fallen off and there is a risk of falling off, obtain the temperature of the exhaust temperature sensing bulb 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 time, to obtain a third exhaust temperature sensing bulb temperature, a second inlet pipe temperature and a second outlet pipe temperature, the third time being a time after the air conditioner is started for a third preset time period, the third preset time period being greater than the second preset time period, according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature. The third calculating module is configured to calculate the difference between the third exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature to obtain a second exhaust temperature difference. The fourth calculating module is configured to calculate the difference between the second outlet pipe temperature and the second inlet pipe temperature to obtain a second pipe temperature difference. The second determining module is configured to determine whether the exhaust temperature sensing bulb of the air conditioner has fallen off again according to the size relationship between the second exhaust temperature difference and a preset exhaust temperature difference and the size relationship between the second pipe temperature difference and a preset pipe temperature difference. The reliability of the air conditioner is ensured. At the same time, the system is limited to run by the preset conditions without affecting the use of the user, so as to avoid damage to the air conditioner. If it is determined that the exhaust temperature sensing bulb has fallen off, the air conditioner is stopped and a fault code is displayed to prompt the user to repair.

[0104] In some examples, the second determining module comprises a third determining submodule and a fourth determining submodule. The third determining submodule is configured to, in the case where 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, determine that the exhaust temperature sensing bulb of the air conditioner has not fallen off and there is a risk of falling off, and reduce the frequency of the compressor of the air conditioner. The fourth determining submodule is configured to, in the case where 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, determine that the exhaust temperature sensing bulb of the air conditioner has fallen off, control the air conditioner to stop and send an alarm signal. In this way, the state of the exhaust temperature sensing bulb can be continuously monitored, so that the air conditioner is stopped in time when the exhaust temperature sensing bulb falls off, a fault code is displayed and the user is prompted to repair.

[0105] In some examples, the device further comprises a second obtaining module, a first adjusting module, a second adjusting module and a third adjusting module. The second obtaining module is configured to, in the case that the first exhaust temperature sensor and the second exhaust temperature sensor are not detached and there is a risk of detachment, obtain the outdoor ambient temperature and the current outdoor fan speed of the air conditioner according to the size relationship between the first exhaust temperature sensor and the second exhaust temperature sensor and the size relationship between the first inlet temperature and the first outlet temperature. The first adjusting module is configured to, in the case that the outdoor ambient temperature is greater than or equal to a first temperature threshold and less than a second temperature threshold, increase the outdoor fan speed of the air conditioner to obtain a first target speed, wherein the first target speed is the sum of the current outdoor fan speed and a first threshold speed. The second adjusting module is configured to, in the case that the outdoor ambient temperature is greater than or equal to a second temperature threshold and less than a third temperature threshold, increase the outdoor fan speed 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 a second threshold speed, and the second threshold speed is greater than the first threshold speed. The third adjusting module is configured to, in the case that the outdoor ambient temperature is greater than or equal to a third temperature threshold, increase the outdoor fan speed of the air conditioner to obtain a third target speed, wherein the third target speed is the sum of the current outdoor fan speed and a third threshold speed, and the third threshold speed is greater than the second threshold speed. In this way, the reliability of the air conditioner can be ensured, and the air conditioner can be ensured to operate normally.

[0106] In some examples, the device further comprises a third acquisition module, a fourth adjustment module, a fifth adjustment module and a sixth adjustment module. The third acquisition module is configured to, in the case where it is determined that the exhaust temperature sensing bulb of the air conditioner has not fallen off and there is a risk of falling off, according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, acquire the outdoor environment temperature of the air conditioner and the current electronic expansion valve opening degree. The fourth adjustment module is configured to, in the case where the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second environment threshold, increase the electronic expansion valve opening degree of the air conditioner to obtain a first target opening degree, the first target opening degree being the sum of the current electronic expansion valve opening degree and a first threshold opening degree. The fifth adjustment module is configured to, in the case where the outdoor environment temperature is greater than or equal to a second temperature threshold and less than a third environment threshold, increase the electronic expansion valve opening degree of the air conditioner to obtain a second target opening degree, the second target opening degree being the sum of the current electronic expansion valve opening degree and a second threshold opening degree, the second threshold opening degree being greater than the first threshold opening degree. The sixth adjustment module is configured to, in the case where the outdoor environment temperature is greater than or equal to a third temperature threshold, increase the electronic expansion valve opening degree of the air conditioner to obtain a third target opening degree, the third target opening degree being the sum of the current electronic expansion valve opening degree and a third threshold opening degree, the third threshold opening degree being greater than the second threshold opening degree. In this way, the reliability of the air conditioner can be ensured, and the air conditioner can be ensured to operate normally.

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

[0108] The processor comprises a core, and the core retrieves the corresponding program units from the memory. The core can be one or more, and the problem of long judgment period, low judgment accuracy and easy to miss report in the prior art can be solved by adjusting the core parameters.

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

[0110] The embodiment of the present application provides a computer readable storage medium, the computer readable storage medium comprises a stored program, wherein the program controls the device where the computer readable storage medium is located to execute the determination method whether the air conditioner exhaust temperature sensing bag falls off when the program runs.

[0111] The embodiment of the present application provides a processor, the processor is used for running a program, wherein the program executes the determination method whether the air conditioner exhaust temperature sensing bag falls off when the program runs.

[0112] The embodiment of the present application provides a device, the device comprises a processor, a memory and a program stored in the memory and capable of running on the processor, and the processor executes the program to realize at least the following steps:

[0113] Step S201, obtaining the temperature of the exhaust temperature sensing bag of the air conditioner at a first time, to obtain a first exhaust temperature sensing bag temperature, wherein the first time is a time after the air conditioner is started for a first preset time length;

[0114] Step S202, 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 second time, to obtain a second exhaust temperature sensing bag temperature, a first inlet pipe temperature and a first outlet pipe temperature, wherein the second time is a time after the air conditioner is started for a second preset time length, and the second preset time length is greater than the first preset time length;

[0115] Step S203, determining whether the exhaust temperature sensing bag of the air conditioner falls off 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.

[0116] The device herein can be a server, a PC, a PAD, a mobile phone and the like.

[0117] Optionally, 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 are used to determine whether the exhaust temperature sensing bag of the air conditioner falls off, comprising: 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; and determining whether the exhaust temperature sensing bag of the air conditioner falls off according to the size relationship between the first exhaust temperature difference and a preset exhaust temperature difference and the size relationship between the first pipe temperature difference and a preset pipe temperature difference.

[0118] Optionally, 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, it is determined whether the exhaust temperature bulb of the air conditioner is detached, comprising: in the case that 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 bulb of the air conditioner is not detached but has a risk of being detached; in the case that 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 bulb of the air conditioner is detached, the air conditioner is controlled to stop, and an alarm signal is sent.

[0119] Optionally, after it is determined whether the exhaust temperature bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the size relationship between the first pipe temperature and the first pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature bulb of the air conditioner is not detached but has a risk of being detached, the temperature of the exhaust temperature bulb of the air conditioner, the pipe temperature of the indoor heat exchanger of the air conditioner and the pipe temperature of the indoor heat exchanger of the air conditioner are acquired at a third time to obtain a third exhaust temperature bulb temperature, a second pipe temperature and a second pipe temperature, the third time is a time after the air conditioner is started for a third preset time period, and the third preset time period is greater than the second preset time period; the difference between the third exhaust temperature bulb temperature and the second exhaust temperature bulb temperature is calculated to obtain a second exhaust temperature difference; the difference between the second pipe temperature and the second pipe temperature is calculated to obtain a second pipe temperature difference; and whether the exhaust temperature bulb of the air conditioner is detached is determined again according to 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.

[0120] Optionally, according to 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, whether the exhaust temperature bulb of the air conditioner is detached is determined again, comprising: in the case that 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 bulb of the air conditioner is not detached but has a risk of being detached, and the frequency of the compressor of the air conditioner is reduced; in the case that 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 bulb of the air conditioner is detached, the air conditioner is controlled to stop, and an alarm signal is sent.

[0121] Optionally, after determining whether the exhaust temperature sensing bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature sensing bulb of the air conditioner is not detached but has a risk of being detached, obtaining an outdoor environment temperature of the air conditioner and a current outdoor fan speed; in the case that the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second temperature threshold, increasing the outdoor fan speed of the air conditioner to obtain a first target speed, the first target speed being a sum of the current outdoor fan speed and a first threshold speed; in the case that the outdoor environment temperature is greater than or equal to the second temperature threshold and less than a third temperature threshold, increasing the outdoor fan speed of the air conditioner to obtain a second target speed, the second target speed being a sum of the current outdoor fan speed and a second threshold speed; the second threshold speed being greater than the first threshold speed; in the case that the outdoor environment 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, the third target speed being a sum of the current outdoor fan speed and a third threshold speed; the third threshold speed being greater than the second threshold speed.

[0122] Optionally, after determining whether the exhaust temperature sensing bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature sensing bulb of the air conditioner is not detached but has a risk of being detached, obtaining an outdoor environment temperature of the air conditioner and a current electronic expansion valve opening degree; in the case that the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second temperature threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a first target opening degree, the first target opening degree being a sum of the current electronic expansion valve opening degree and a first threshold opening degree; in the case that the outdoor environment temperature is greater than or equal to the second temperature threshold and less than a third temperature threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a second target opening degree, the second target opening degree being a sum of the current electronic expansion valve opening degree and a second threshold opening degree; the second threshold opening degree being greater than the first threshold opening degree; in the case that the outdoor environment temperature is greater than or equal to the third temperature threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a third target opening degree, the third target opening degree being a sum of the current electronic expansion valve opening degree and a third threshold opening degree; the third threshold opening degree being greater than the second threshold opening degree.

[0123] The application also provides a computer program product adapted to execute a program comprising at least the following method steps when executed on a data processing device:

[0124] Step S201, obtaining the temperature of the exhaust temperature bulb of the air conditioner at a first time, to obtain a first exhaust temperature bulb temperature, the first time being a time after the air conditioner is started for a first preset time length;

[0125] Step S202, obtaining the temperature of the exhaust temperature bulb 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 time, to obtain a second exhaust temperature bulb temperature, a first inlet pipe temperature and a first outlet pipe temperature, the second time being a time after the air conditioner is started for a second preset time length, the second preset time length being greater than the first preset time length;

[0126] Step S203, determining whether the exhaust temperature bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature.

[0127] Optionally, determining whether the exhaust temperature bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature bulb temperature and the second exhaust temperature bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature includes: calculating the difference between the second exhaust temperature bulb temperature and the first exhaust temperature bulb 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; and determining whether the exhaust temperature bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature difference and a preset exhaust temperature difference and the size relationship between the first pipe temperature difference and a preset pipe temperature difference.

[0128] Optionally, determining whether the exhaust temperature bulb of the air conditioner is detached 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 includes: in the case that 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, determining that the exhaust temperature bulb of the air conditioner has not been detached but has a risk of being detached; and in the case that 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, determining that the exhaust temperature bulb of the air conditioner has been detached, controlling the air conditioner to stop and sending an alarm signal.

[0129] Optionally, after determining whether the exhaust temperature sensing bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that the exhaust temperature sensing bulb of the air conditioner is determined not to be detached but at risk of being detached, obtaining the temperature of the exhaust temperature sensing bulb 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 time, to obtain a third exhaust temperature sensing bulb temperature, a second inlet pipe temperature and a second outlet pipe temperature, the third time being a time after the air conditioner is started for a third preset time length, the third preset time length being greater than the second preset time length; calculating the difference between the third exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb 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 bulb of the air conditioner is detached again according to the size relationship between the second exhaust temperature difference and a preset exhaust temperature difference and the size relationship between the second pipe temperature difference and a preset pipe temperature difference.

[0130] Optionally, the determining whether the exhaust temperature sensing bulb of the air conditioner is detached again according to 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 comprises: in the case that 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, determining that the exhaust temperature sensing bulb of the air conditioner is not detached but at risk of being detached, and reducing the frequency of the compressor of the air conditioner; and in the case that 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, determining that the exhaust temperature sensing bulb of the air conditioner is detached, and controlling the air conditioner to stop and sending an alarm signal.

[0131] Optionally, after determining whether the exhaust temperature sensing bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature sensing bulb of the air conditioner is not detached but has a risk of being detached, obtaining an outdoor environment temperature and a current outdoor fan speed of the air conditioner; in the case that the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second environment threshold, increasing the outdoor fan speed of the air conditioner to obtain a first target speed, the first target speed being a sum of the current outdoor fan speed and a first threshold speed; in the case that the outdoor environment temperature is greater than or equal to the second temperature threshold and less than a third environment threshold, increasing the outdoor fan speed of the air conditioner to obtain a second target speed, the second target speed being a sum of the current outdoor fan speed and a second threshold speed; the second threshold speed being greater than the first threshold speed; in the case that the outdoor environment 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, the third target speed being a sum of the current outdoor fan speed and a third threshold speed; the third threshold speed being greater than the second threshold speed.

[0132] Optionally, after determining whether the exhaust temperature sensing bulb of the air conditioner is detached according to the size relationship between the first exhaust temperature sensing bulb temperature and the second exhaust temperature sensing bulb temperature and the size relationship between the first inlet pipe temperature and the first outlet pipe temperature, the method further comprises: in the case that it is determined that the exhaust temperature sensing bulb of the air conditioner is not detached but has a risk of being detached, obtaining an outdoor environment temperature and a current electronic expansion valve opening degree of the air conditioner; in the case that the outdoor environment temperature is greater than or equal to a first temperature threshold and less than a second environment threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a first target opening degree, the first target opening degree being a sum of the current electronic expansion valve opening degree and a first threshold opening degree; in the case that the outdoor environment temperature is greater than or equal to the second temperature threshold and less than a third environment threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a second target opening degree, the second target opening degree being a sum of the current electronic expansion valve opening degree and a second threshold opening degree; the second threshold opening degree being greater than the first threshold opening degree; in the case that the outdoor environment temperature is greater than or equal to the third temperature threshold, increasing the electronic expansion valve opening degree of the air conditioner to obtain a third target opening degree, the third target opening degree being a sum of the current electronic expansion valve opening degree and a third threshold opening degree; the third threshold opening degree being greater than the second threshold opening degree.

[0133] It is obvious to those skilled in the art that the modules or steps of the present invention described above can be implemented using general-purpose computing devices. They can be centralized on a single computing device or distributed across a network of multiple computing devices. They can be implemented using computer-executable program code, and thus can be stored in a storage device for execution by a computing device. In some cases, the steps shown or described can be performed in a different order than those described herein, or they can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0134] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0135] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0136] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0137] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process.Figure 1 one or more processes and / or functions specified in one or more blocks Figure 1 one or more processes and / or functions specified in one or more blocks

[0138] In one typical arrangement, the computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0139] The memory can include non-persistent memory and / or volatile memory, such as random access memory (RAM) and / or cache memory, non-volatile memory, such as read-only memory (ROM), EPROM, and / or flash memory, etc. The memory is an example of computer readable media.

[0140] Computer readable media includes permanent and non-permanent, removable and non-removable media implemented in any method or technology for storage of information such as 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 disc read-only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassette, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer readable media does not include transitory media, such as modulated data signals and carrier waves.

[0141] It should also be noted that the terms "comprising", "containing", or any other variant thereof, are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices that include a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

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

[0143] 1) The method for determining whether the above-mentioned air conditioner exhaust temperature sensing bag of the application falls off, first acquires the first exhaust temperature sensing bag temperature of the air conditioner at the first time, the first time is the time after the air conditioner is started for a first preset time length; then acquires 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 the second time, the second time is the time after the air conditioner is started for a second preset time length, the second preset time length is greater than the first preset time length; 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 falls off. The method determines whether the temperature of the exhaust temperature sensing bag is accurately detected by the changes of the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, so as to determine the falling off of the exhaust pipe temperature bag of the air conditioner, and solves the problems of long judgment period, low judgment accuracy and easy to miss report of the judgment method of the falling off of the exhaust pipe temperature bag of the air conditioner in the prior art.

[0144] 2) The above-mentioned air conditioner exhaust temperature sensing bag falling off determination device of the application, comprising a first acquisition unit, a second acquisition unit and a determination unit, the first acquisition unit is used for acquiring the first exhaust temperature sensing bag temperature of the air conditioner at the first time, the first time is the time after the air conditioner is started for a first preset time length; the second acquisition unit is used for acquiring 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 the second time, the second time is the time after the air conditioner is started for a second preset time length, the second preset time length is greater than the first preset time length; the determination unit is used for determining whether the exhaust temperature sensing bag of the air conditioner falls off 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. The device determines whether the temperature of the exhaust temperature sensing bag is accurately detected by the changes of the exhaust temperature, the inlet pipe temperature of the indoor heat exchanger and the outlet pipe temperature of the indoor heat exchanger, so as to determine the falling off of the exhaust pipe temperature bag of the air conditioner, and solves the problems of long judgment period, low judgment accuracy and easy to miss report of the judgment method of the falling off of the exhaust pipe temperature bag of the air conditioner in the prior art.

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

Claims

1. A method for determining whether an exhaust temperature sensor in an air conditioner has detached, characterized in that, include: The temperature of the exhaust temperature sensor of the air conditioner is obtained at the first moment, and the first moment is the time after the air conditioner is turned on for a first preset time. At the second moment, the temperature of the exhaust temperature sensor 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 the second exhaust temperature sensor temperature, the first inlet pipe temperature, and the first outlet pipe temperature. The second moment is the time after the air conditioner is turned on for a second preset time, and the second preset time is longer than the first preset time. Based on the relationship between the temperatures of the first and second exhaust temperature sensors and the relationship between the temperatures of the first inlet pipe and the first outlet pipe, the system determines whether the exhaust temperature sensor of the air conditioner has detached. This includes: calculating the difference between the temperatures of the second and first exhaust temperature sensors to obtain a first exhaust temperature difference; calculating the difference between the temperatures of the first outlet pipe and the first inlet pipe to obtain a first pipe temperature difference; if the first exhaust temperature difference is greater than a preset exhaust temperature difference and the first pipe temperature difference is greater than a preset pipe temperature difference, the system determines that the exhaust temperature sensor of the air conditioner has not detached but is at risk of detachment; if 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, the system determines that the exhaust temperature sensor of the air conditioner has detached, controls the air conditioner to stop, and issues an alarm signal.

2. The method according to claim 1, characterized in that, After determining whether the exhaust temperature sensor of the air conditioner has detached based on the relationship between the temperatures of the first and second exhaust temperature sensors and the relationship between the temperatures of the first inlet pipe and the first outlet pipe, the method further includes: If it is determined that the exhaust temperature sensor of the air conditioner has not fallen off and there is a risk of falling off, the temperature of the exhaust temperature sensor, 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 the third time to obtain the third exhaust temperature sensor temperature, the second inlet pipe temperature, and the second outlet pipe temperature. The third time is the time after the air conditioner is turned on for a third preset time, and the third preset time is longer than the second preset time. The difference between the temperature of the third exhaust temperature sensor and the temperature of the second exhaust temperature sensor is calculated to obtain the second exhaust temperature difference; Calculate the difference between the second outlet temperature and the second inlet temperature to obtain the second pipe temperature difference; Based on the relationship between the second exhaust temperature difference and the preset exhaust temperature difference, as well as the relationship between the second pipe temperature difference and the preset pipe temperature difference, a second determination is made as to whether the exhaust temperature sensor of the air conditioner has fallen off.

3. The method according to claim 2, characterized in that, 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, a secondary determination is made as to whether the exhaust temperature sensor of the air conditioner has detached, including: If 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 sensor 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. If 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 sensor of the air conditioner has fallen off, and the air conditioner is controlled to stop and an alarm signal is issued.

4. The method according to claim 1, characterized in that, After determining whether the exhaust temperature sensor of the air conditioner has detached based on the relationship between the temperatures of the first and second exhaust temperature sensors and the relationship between the temperatures of the first inlet pipe and the first outlet pipe, the method further includes: If it is determined that the exhaust temperature sensor of the air conditioner has not fallen off and there is a risk of falling off, the outdoor ambient temperature and the current outdoor fan speed of the air conditioner are obtained. When the outdoor ambient temperature is greater than or equal to a first temperature threshold and less than a second ambient temperature threshold, the speed of the outdoor fan of the air conditioner is increased to obtain a first target speed, wherein the first target speed 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 a second temperature threshold and less than a third ambient temperature threshold, the speed of the outdoor fan of the air conditioner is increased to obtain a second target speed, the second target speed being 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 a third temperature threshold, the speed of the outdoor fan of the air conditioner is increased 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.

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

6. A device for determining whether an exhaust temperature sensor in an air conditioner has detached, characterized in that, include: The first acquisition unit is used to acquire the temperature of the exhaust temperature sensor of the air conditioner at a first moment, and obtain the temperature of the first exhaust temperature sensor. The first moment is the time after the air conditioner is turned on and a first preset time has elapsed. The second acquisition unit is used to acquire the temperature of the exhaust temperature sensor 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 time, so as to obtain the temperature of the second exhaust temperature sensor, the first inlet pipe temperature, and the first outlet pipe temperature. The second time is the time after the air conditioner is turned on for a second preset time, and the second preset time is longer than the first preset time. The determining unit is used to determine whether the exhaust temperature sensor of the air conditioner has fallen off based on the relationship between the temperatures of the first exhaust temperature sensor and the second exhaust temperature sensor, and the relationship between the temperatures of the first inlet pipe and the first outlet pipe. The determining unit includes a first calculation module, a second calculation module, a first determining submodule, and a second determining submodule. The first calculation module is used to calculate the difference between the temperature of the second exhaust temperature sensor and the temperature of the first exhaust temperature sensor 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 submodule is used to determine that the exhaust temperature sensor of the air conditioner has not fallen off and there is a risk of falling off 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. The second determining submodule is used to determine that the exhaust temperature sensor of the air conditioner has fallen 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, control the air conditioner to stop, and issue an alarm signal.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the computer-readable storage medium to perform the method for determining whether the exhaust temperature sensor of an air conditioner has detached, as described in any one of claims 1 to 5.

8. 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 configured to be executed by the one or more processors, the one or more programs including a method for performing a method for determining whether an air conditioner exhaust temperature sensor has detached, as described in any one of claims 1 to 5.

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