A method for determining the outer ring temperature of an air conditioner, electronic equipment, and air conditioner

Abstract

This invention provides a method for determining the outer ring temperature of an air conditioner, comprising acquiring operating parameters of the air conditioner under operating conditions; determining the outer ring temperature of the air conditioner based on the operating parameters and the operating mode of the air conditioner; wherein the operating parameters include the outdoor unit coil temperature, and at least one of the following parameters: outdoor fan speed, overall operating current, and exhaust temperature. This invention also provides an electronic device and an air conditioner. Using this invention, the outer ring temperature can be accurately determined, reducing costs.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning technology, and particularly relates to a method for determining the outer ring temperature of an air conditioner, an electronic device, and an air conditioner. Background Technology

[0002] Outdoor ambient temperature is one of the important parameters for the operation and regulation of air conditioners, and its main function is to limit the operating range of the compressor frequency. In actual user scenarios, drastic changes in outdoor ambient temperature within a short period of time are rare, so real-time monitoring of the outer ring temperature is usually not required. The installation of an outdoor ambient temperature sensor not only increases the development cost of the air conditioner, but also leads to an increase in the frequency of temperature sensor hardware failures, thereby increasing the overall maintenance rate of the unit.

[0003] If the outdoor ambient temperature sensor can be removed without affecting product performance and reliability, the cost reduction will be substantial. Summary of the Invention

[0004] In view of this, the present invention provides a method, electronic device and air conditioner for determining the outer ring temperature of an air conditioner, so as to solve the technical problem that it is difficult to accurately determine the outer ring temperature in the prior art.

[0005] A first aspect of this invention provides a method for determining the outer ring temperature of an air conditioner, the method comprising:

[0006] Obtain the operating parameters of the air conditioner while it is running;

[0007] The outer ring temperature of the air conditioner is determined based on the operating parameters and operating mode of the air conditioner.

[0008] The operating parameters include the outdoor unit coil temperature, and at least one of the following parameters: outdoor fan speed, overall operating current, and exhaust temperature.

[0009] Optionally, in one implementation of the first aspect, the method further includes:

[0010] Before obtaining the operating parameters of the air conditioner, the outdoor unit coil temperature is used as the outer loop temperature to start the air conditioner and run it for a target period of time.

[0011] Optionally, in one implementation of the first aspect, obtaining the operating parameters of the air conditioner's operating state includes:

[0012] When the air conditioner is operating in cooling mode or dehumidification mode:

[0013] Obtain the outdoor unit coil temperature and at least one of the following parameters: outdoor fan speed, overall operating current, exhaust temperature; or, obtain the outdoor unit coil temperature and overall operating current and at least one of the following parameters: outdoor fan speed, exhaust temperature; and / or,

[0014] When the air conditioner is operating in heating mode:

[0015] Obtain the outdoor unit coil temperature and at least one of the following parameters: overall operating current and exhaust temperature, or obtain the outdoor unit coil temperature, overall operating current and exhaust temperature.

[0016] Optionally, in one implementation of the first aspect, the operating mode of the air conditioner includes at least one of a cooling mode, a dehumidification mode, and a heating mode;

[0017] The operating parameters have adjustment coefficients corresponding to different operating modes.

[0018] Optionally, in one implementation of the first aspect, determining the outer ring temperature of the air conditioner based on the operating parameters of the air conditioner in its operating state and the operating mode of the air conditioner includes:

[0019] Based on the operating mode of the air conditioner, obtain the detection values ​​of the operating parameters corresponding to the operating mode;

[0020] The outer ring temperature is calculated based on the detected values ​​of the operating parameters corresponding to the operating mode and the adjustment coefficients.

[0021] The outer ring temperature has a first-order functional relationship with the operating parameters.

[0022] Optionally, in one implementation of the first aspect, determining the outer ring temperature of the air conditioner based on the operating parameters of the air conditioner in its operating state and the operating mode of the air conditioner includes:

[0023] In cooling mode, the outer ring temperature is calculated as follows: T_outer ring = e1*R_outer fan + a1*I_current + b1*T_exhaust + c1*T_outer pipe + d1; or,

[0024] In dehumidification mode, the outer ring temperature is calculated as follows: T_outer ring = e2*R_outer fan a2*I_current + b2*T_exhaust + c2*T_outer pipe + d2; or,

[0025] In heating mode, the outer ring temperature is calculated as follows: T_outer ring = a3*I_current + b3*T_exhaust + c3*T_outer pipe + d3;

[0026] Wherein, T_outer ring represents the outer ring temperature, R_outer fan represents the outside fan speed, I_current represents the overall operating current, T_exhaust represents the exhaust temperature, T_outer pipe represents the outdoor unit coil temperature, e1, a1, b1, and c1 are the adjustment coefficients for the outside fan speed, overall operating current, exhaust temperature, and outdoor unit coil temperature in cooling mode, respectively; e2, a2, b2, and c2 are the adjustment coefficients for the outside fan speed, overall operating current, exhaust temperature, and outdoor unit coil temperature in dehumidification mode, respectively; a3, b3, and c3 are the adjustment coefficients for the overall operating current, exhaust temperature, and outdoor unit coil temperature in heating mode, respectively; and d1, d2, and d3 are the correction values ​​for cooling mode, dehumidification mode, and heating mode, respectively.

[0027] Optionally, in one implementation of the first aspect, determining the outer ring temperature of the air conditioner based on the operating parameters of the air conditioner in its operating state and the operating mode of the air conditioner includes:

[0028] The outer ring temperature of the air conditioner is periodically updated based on the operating parameters under the current operating status and the operating mode of the air conditioner.

[0029] Optionally, in one implementation of the first aspect, the adjustment coefficient corresponding to the operating mode has different values ​​in different models of air conditioners.

[0030] A second aspect of the present invention provides an electronic device, the electronic device comprising:

[0031] Memory, used to store computer instructions;

[0032] A processor is configured to invoke and execute computer instructions in the memory to implement the method for determining the outer ring temperature of an air conditioner provided by a first aspect of the present invention or an implementation thereof.

[0033] A third aspect of the present invention is an air conditioner, wherein the air conditioner employs a method for determining the air conditioner outer ring temperature provided by the first aspect of the present invention or its implementation thereof; or, the air conditioner controls its operation based on the air conditioner outer ring temperature determined by the method provided by the first aspect of the present invention or its implementation thereof; or, the air conditioner has an electronic device provided by the second aspect of the present invention.

[0034] Compared with the prior art, the beneficial effects of the embodiments of the present invention are mainly as follows: based on the operating parameters of the air conditioner in operation and the operating mode of the air conditioner, the outer ring temperature is accurately determined, the outdoor ambient temperature sensor is omitted, and the cost of air conditioning is effectively reduced. Attached Figure Description

[0035] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0036] Figure 1 This is a flowchart illustrating a method for determining the outer ring temperature of an air conditioner according to an embodiment of the present invention.

[0037] Figure 2 This is a flowchart illustrating a method for determining the outer ring temperature of an air conditioner according to an embodiment of the present invention.

[0038] Figure 3A This is a graph showing the actual change in the outer ring temperature of a test model of air conditioner in cooling mode;

[0039] Figure 3B The outer ring temperature change graph is obtained by fitting the method for determining the outer ring temperature of the air conditioner according to an embodiment of the present invention in the cooling mode of the air conditioner of the test model.

[0040] Figure 4 This is a schematic diagram of the frame of an air conditioning control device according to an embodiment of the present invention. Detailed Implementation

[0041] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” used in the embodiments of this invention and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0043] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0044] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0045] Figure 1 This is a flowchart illustrating a method for determining the outer ring temperature of an air conditioner according to an embodiment of the present invention. (Refer to...) Figure 1 The method includes:

[0046] 102: Obtain the operating parameters of the air conditioner during operation. These operating parameters include the outdoor unit coil temperature, and at least one of the following parameters: outdoor fan speed, overall operating current, and exhaust temperature (i.e., compressor exhaust temperature).

[0047] 104: Determine the outer ring temperature of the air conditioner based on the operating parameters under the air conditioner's operating state and the air conditioner's operating mode.

[0048] Optionally, in one implementation of this embodiment, 102 acquires the operating parameters of the air conditioner when it is in a stable operating state. This can improve the accuracy of the outer ring temperature determined by 102. Of course, even if 102 does not acquire the operating parameters of a stable operating state, by periodically executing 102 and 104, the air conditioner can gradually stabilize and obtain an accurate outer ring temperature. Here, schematically, a stable operating state can be understood as a state in which the compressor operating frequency changes at a small or essentially constant rate, and the compressor discharge temperature changes at a small or essentially constant rate.

[0049] The method provided in this embodiment can calculate a relatively accurate outer ring temperature based on parameter values ​​during actual operation. Compared to existing technologies that require an additional outdoor ambient temperature sensor, this method saves on sensor costs.

[0050] Furthermore, some outer ring temperature fitting methods require complex judgments and parameter adjustments based on external factors (e.g., the voltage of the outdoor motor). This complex logical judgment process not only increases computational costs but also results in poor accuracy. In contrast, the embodiments of this invention can determine the accurate outer ring temperature based on the operating parameters and operating mode of the air conditioner, resulting in high computational efficiency.

[0051] Optionally, in one implementation of this embodiment, such as Figure 1As shown in the dashed box, the method further includes step 100: starting the air conditioner and running it for a target period of time using the outdoor unit coil temperature as the outer ambient temperature. The target period of time can be understood as the time it takes for the air conditioner to enter a stable operating state. Starting the air conditioner based on the outdoor unit coil temperature provides an effective temperature reference for starting the air conditioner even without an external ambient temperature sensor.

[0052] Optionally, in one implementation of this embodiment, 102 can be implemented in the following way: when the air conditioner is in cooling mode or dehumidification mode: obtain the outdoor unit coil temperature and at least one of the following parameters: outdoor fan speed, whole unit operating current, exhaust temperature; or, obtain the outdoor unit coil temperature and whole unit operating current, or further obtain at least one of the following parameters: outdoor fan speed, exhaust temperature.

[0053] Alternatively, if the air conditioner is in heating mode: obtain the outdoor unit coil temperature and at least one of the following parameters: overall operating current and exhaust temperature; or, obtain the outdoor unit coil temperature and overall operating current, or, further obtain the exhaust temperature.

[0054] In other words, in this implementation, the operating parameters can be different in different modes. Although the outdoor fan speed is not used in the heating mode, meaning it is not necessary to collect the outdoor fan speed, in other implementations, the outdoor fan speed can still be collected, and its weak influence on the external ambient temperature in the heating mode can be reflected in subsequent calculations with a very small adjustment factor (e.g., 0).

[0055] Optionally, in one implementation of this embodiment, the air conditioner's operating mode includes at least one of a cooling mode, a dehumidifying mode, and a heating mode; the operating parameters have adjustment coefficients corresponding to different operating modes. That is, in this implementation, when the operating mode is determined, the adjustment coefficients of the operating parameters are also determined. Therefore, unlike some outer ring temperature fitting methods, it is not necessary to perform complex adjustments to the adjustment coefficients based on real-time monitoring data, effectively reducing the computational load while accurately calculating the outer ring temperature.

[0056] Optionally, in this implementation, the adjustment coefficient corresponding to the operating mode has different values ​​in different air conditioner models. This design, where the adjustment coefficient varies depending on the model, fully considers the characteristics of different air conditioner models, thereby further improving the accuracy of the outer ring temperature detection.

[0057] Optionally, in one implementation of this embodiment, 104 can be implemented as follows: based on the operating mode of the air conditioner, determine the operating parameters to be acquired and then acquire the detection values ​​of the operating parameters corresponding to the operating mode; based on the detection values ​​of the operating parameters corresponding to the operating mode and the adjustment coefficient, calculate the outer ring temperature; wherein the outer ring temperature has a first-order functional relationship with the operating parameters. With the adjustment coefficient determined, calculation based on the first-order functional relationship can obtain an accurate outer ring temperature with high computational efficiency, thereby reducing computational costs.

[0058] Optionally, in one implementation of this embodiment, 104 can be implemented in the following way: In cooling mode, the outer ring temperature is calculated based on the following method: T_outer ring = e1*R_outer fan + a1*I_current + b1*T_exhaust + c1*T_outer pipe + d1.

[0059] Alternatively, in dehumidification mode, the outer ring temperature is calculated as follows: T_outer ring = e2*R_outer fan a2*I_current + b2*T_exhaust + c2*T_outer pipe + d2.

[0060] Alternatively, in heating mode, the outer ring temperature is calculated as follows: T_outer ring = a3*I_current + b3*T_exhaust + c3*T_outer pipe + d3.

[0061] Wherein, T_outer ring represents the outer ring temperature, R_outer fan represents the outdoor fan speed, I_current represents the overall operating current, T_exhaust represents the exhaust temperature, T_outer pipe represents the outdoor unit coil temperature, e1, a1, b1, and c1 are the adjustment coefficients for the outdoor fan speed, overall operating current, exhaust temperature, and outdoor unit coil temperature in cooling mode, respectively; e2, a2, b2, and c2 are the adjustment coefficients for the outdoor fan speed, overall operating current, exhaust temperature, and outdoor unit coil temperature in dehumidification mode, respectively; a3, b3, and c3 are the adjustment coefficients for the overall operating current, exhaust temperature, and outdoor unit coil temperature in heating mode, respectively; and d1, d2, and d3 are the correction values ​​for cooling mode, dehumidification mode, and heating mode, respectively. * indicates a multiplication operation.

[0062] It should be noted that although this implementation uses a relatively large number of operating parameters to calculate the outer ring temperature, other implementations may only require a subset of these parameters. Therefore, in other implementations, referring to the formulas above, taking the cooling mode as an example, the "e1*R_outer fan" part, or the "a1*I_current" part, or the "b1*T_exhaust" part, or "d1", or two or more of these parts can be omitted. Similarly, the same applies to the heating mode.

[0063] In this implementation, all adjustment coefficients and correction values ​​are dimensionless parameters, essentially constants. They can be determined by fitting multiple sets of historical data. Furthermore, different air conditioner models may have different correction coefficients and values. For example, wall-mounted and floor-standing units may have different adjustment coefficients for the same operating parameters under the same operating mode. Once the model and operating mode are determined, the corresponding adjustment coefficients and correction values ​​for the operating parameters can be determined without requiring complex adjustments to the adjustment coefficients during air conditioner operation.

[0064] In this implementation, the cooling mode and dehumidification mode can share a set of operating parameters, adjustment coefficients, and correction values. For example, in cooling / dehumidification mode, the adjustment coefficient and outer ring temperature calculation method for a certain measuring model are as follows: T_outer ring = 0.0075 * R_outer fan - 1.478 * I_current + 0.1738 * T_exhaust + 0.815 * T_outer pipe - 8.74.

[0065] Optionally, in one implementation of this embodiment, 104 can be implemented by periodically updating the outer ring temperature of the air conditioner based on the operating parameters under the current operating state and the operating mode of the air conditioner. A key prerequisite for this periodic calculation is that the predicted outer ring temperature in this embodiment has high accuracy, thus eliminating the need for real-time or frequent adjustments and reducing the cost of computing resources.

[0066] Figure 2 This is a schematic flowchart illustrating a method for determining the outer ring temperature of an air conditioner according to an embodiment of the present invention. (Refer to...) Figure 2 The method includes:

[0067] The air conditioner receives the power-on command.

[0068] Obtain the outdoor unit coil temperature; that is, collect and store an outdoor unit coil temperature before starting the outdoor fan.

[0069] Detect the current operating mode, for example, detect the operating mode currently enabled by the user. Different external ambient temperature fitting calculation methods are used for cooling / dehumidification mode and heating mode, respectively.

[0070] For cooling / dehumidification mode:

[0071] When the current operating mode is detected as cooling / dehumidification mode, the outdoor coil temperature (i.e., the outdoor unit coil temperature) is set to the outdoor ambient temperature used for startup. Specifically, at this time, the compressor, outdoor fan, etc., have not yet started, and there are no corresponding operating parameters. The outdoor unit coil temperature collected before the operating mode was detected is used as the outdoor ambient temperature for operation control. The air conditioning system starts operating using this temperature. After running for Δt1 (approximately 6 minutes, with a time range of 5-10 minutes), the air conditioning system reaches a stable state and then has operating parameters that can be effectively used for calculation.

[0072] The outer loop temperature fitting and calculation module is invoked to calculate the outer loop temperature. Specifically, the new outdoor ambient temperature is obtained by fitting and calculating the collected outdoor fan speed, operating current, exhaust temperature, and outdoor unit coil temperature values. Please refer to the previous text for the fitting and calculation formula, which will not be repeated here.

[0073] Afterwards, the outer ambient temperature can be obtained by fitting calculation for air conditioning operation control. Data is collected every Δt2 (this time is controlled at around 30 minutes, with an optional range of 25 to 50 minutes) to fit a new outer ambient temperature, which is used to update the outdoor ambient temperature and system operation control until the air conditioning operation ends.

[0074] like Figure 3A and Figure 3B The diagram shows the actual and fitted outer loop temperature data (i.e., predicted outer loop temperature data) obtained synchronously when the same test model of air conditioner is in cooling mode. The comparison shows that the outdoor ambient temperature calculated by the fitting outer loop temperature method proposed in this application's embodiment is in good agreement with the actual outdoor ambient temperature, with a relative error generally within ±3℃. Because the outdoor ambient temperature rarely changes drastically in a short period during air conditioner operation, this fitted value can meet the usage requirements of the air conditioner.

[0075] For heating mode:

[0076] After detecting that the current operating mode is heating mode, the outdoor coil temperature is set to the outdoor ambient temperature used for startup. Specifically, at this time, the compressor, outdoor fan, etc. have not yet started, and there are no corresponding operating parameters. The outdoor unit coil temperature collected before detecting the operating mode is used as the outdoor ambient temperature for operation control. The air conditioning system starts operating using this temperature. After running for Δt3 (approximately 15 minutes, with a time range of 10-20 minutes), the air conditioning system operates basically stably and has certain operating parameters. The operating parameters are then collected for outdoor ambient temperature fitting calculation.

[0077] The outer ring temperature is calculated by calling the outer ring temperature fitting calculation module. The new outdoor ambient temperature is obtained by fitting the operating current, exhaust temperature, and outdoor unit coil temperature. Please refer to the previous text for the fitting calculation formula, which will not be repeated here.

[0078] After the outer ambient temperature is obtained through fitting calculation, the new outer ambient temperature can be used for air conditioning operation control. Data is collected every Δt4 (this time is controlled at around 45 minutes, with an optional range of 30 to 60 minutes) to fit a new outer ambient temperature, which is used to update the outdoor ambient temperature and system operation control until the air conditioning operation ends.

[0079] Figure 4 This is a schematic diagram of the frame of an air conditioning control device according to an embodiment of the present invention, with reference to... Figure 4 The air conditioning control device includes:

[0080] The data acquisition module is used to collect the outdoor fan speed, air conditioning unit operating current, exhaust temperature, and / or external pipe temperature. For details regarding which temperatures to collect at least, which temperatures to selectively collect, and the selection logic for operating parameters, please refer to the previous description; it will not be repeated here.

[0081] The timer control module is used for timing, such as △t1, △t2, △t3 and △t4 mentioned above, and triggers the outer ring temperature fitting calculation module based on the timing results.

[0082] The outer ring temperature fitting calculation module is used to calculate the outer ring temperature. Please refer to the previous text for the specific calculation logic, which will not be repeated here.

[0083] The actuator control module is used to control the air conditioning system based on the calculation results from the outer loop temperature fitting calculation module, including the control of the compressor module, electronic expansion valve, fan module, etc. The specific air conditioning control logic can be found in existing solutions and will not be elaborated here.

[0084] The air conditioning control device provided in this embodiment of the invention can obtain accurate outer ring temperature with low computational cost and high computational efficiency without the need for external environmental sensors, and effectively reduce air conditioning costs.

[0085] In one embodiment of the present invention, an electronic device is also provided, comprising a memory for storing computer instructions; and a processor for calling and executing the computer instructions in the memory to implement the method for determining the outer ring temperature of an air conditioner provided in the foregoing embodiments or their implementations. Furthermore, the electronic device may also have an input / output interface for communicating with relevant components of the air conditioner.

[0086] In one embodiment of the present invention, an air conditioner is also provided, which predicts the outer ring temperature using the method for determining the outer ring temperature provided in the foregoing embodiments or implementations of the present invention; or, controls the operation of the air conditioner based on the predicted outer ring temperature; or, has the electronic equipment described above; or, has... Figure 4 The air conditioning control device provided in the illustrated embodiment. Optionally, in one implementation of this embodiment, the air conditioner omits the external ambient temperature sensor.

[0087] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. A method for determining the outer ring temperature of an air conditioner, characterized in that, The method includes: Obtain the operating parameters of the air conditioner while it is running; The outer ring temperature of the air conditioner is determined based on the operating parameters and operating mode of the air conditioner. Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: Based on the fact that the air conditioner is in cooling mode, the detection values ​​of the operating parameters corresponding to the operating mode are obtained; The outer ring temperature of the air conditioner is calculated based on the detected values ​​of the operating parameters corresponding to the operating mode and the adjustment coefficients corresponding to the detected values; wherein, the outer ring temperature of the air conditioner has a first-order functional relationship with the operating parameters; The operating parameters have adjustment coefficients corresponding to different operating modes; the adjustment coefficients corresponding to different operating modes have different values ​​in different models of air conditioners. The operating parameters include: outdoor unit coil temperature and overall unit operating current, as well as at least one of the following parameters: outdoor fan speed and exhaust temperature.

2. The method as described in claim 1, characterized in that, Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: The outer ring temperature is calculated as follows: T_outer ring = e1*R_outer fan + a1*I_current + b1*T_exhaust + c1*T_outer pipe + d1; Wherein, T_outer ring represents the outer ring temperature of the air conditioner, R_outer fan represents the speed of the outer fan, I_current represents the operating current of the whole unit, T_exhaust represents the exhaust temperature, T_outer pipe represents the temperature of the outdoor unit coil, e1, a1, b1, and c1 are the adjustment coefficients of the speed of the outer fan, the operating current of the whole unit, the exhaust temperature, and the temperature of the outdoor unit coil in the cooling mode, respectively, and d1 is the correction value in the cooling mode; The correction value d1 in cooling mode has different values ​​in different models of air conditioners; or, the correction value d1 in cooling mode has the same value in different models of air conditioners.

3. A method for determining the outer ring temperature of an air conditioner, characterized in that, The method includes: Obtain the operating parameters of the air conditioner while it is running; The outer ring temperature of the air conditioner is determined based on the operating parameters and operating mode of the air conditioner. Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: Based on the fact that the air conditioner is operating in dehumidification mode, the detection values ​​of the operating parameters corresponding to the operating mode are obtained; The outer ring temperature of the air conditioner is calculated based on the detected values ​​of the operating parameters corresponding to the operating mode and the adjustment coefficients corresponding to the detected values; wherein, the outer ring temperature of the air conditioner has a first-order functional relationship with the operating parameters; The operating parameters have adjustment coefficients corresponding to different operating modes; the adjustment coefficients corresponding to different operating modes have different values ​​in different models of air conditioners. The operating parameters include: outdoor unit coil temperature and overall unit operating current, as well as at least one of the following parameters: outdoor fan speed and exhaust temperature.

4. The method as described in claim 3, characterized in that, Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: The outer ring temperature is calculated as follows: T_outer ring = e2*R_outer fan + a2*I_current + b2*T_exhaust + c2*T_outer pipe + d2; Wherein, T_outer ring represents the outer ring temperature of the air conditioner, R_outer fan represents the speed of the outer fan, I_current represents the operating current of the whole unit, T_exhaust represents the exhaust temperature, T_outer pipe represents the temperature of the outdoor unit coil, e2, a2, b2, and c2 are the adjustment coefficients of the speed of the outer fan, the operating current of the whole unit, the exhaust temperature, and the temperature of the outdoor unit coil in dehumidification mode, respectively, and d2 is the correction value in dehumidification mode; The correction value d2 in dehumidification mode has different values ​​in different models of air conditioners; or, the correction value d2 in dehumidification mode has the same value in different models of air conditioners.

5. A method for determining the outer ring temperature of an air conditioner, characterized in that, The method includes: Obtain the operating parameters of the air conditioner while it is running; The outer ring temperature of the air conditioner is determined based on the operating parameters and operating mode of the air conditioner. Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: Based on the fact that the air conditioner is in heating mode, the detection values ​​of the operating parameters corresponding to the operating mode are obtained; The outer ring temperature of the air conditioner is calculated based on the detected values ​​of the operating parameters corresponding to the operating mode and the adjustment coefficients corresponding to the detected values; wherein, the outer ring temperature of the air conditioner has a first-order functional relationship with the operating parameters; The operating parameters have adjustment coefficients corresponding to different operating modes; the adjustment coefficients corresponding to different operating modes have different values ​​in different models of air conditioners. The operating parameters include: outdoor unit coil temperature and overall unit operating current; or, include: outdoor unit coil temperature, overall unit operating current and exhaust temperature.

6. The method as described in claim 5, characterized in that, Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: The outer ring temperature is calculated as follows: T_outer ring = a3 * I_current + b3 * T_exhaust + c3 * T_outer pipe + d3; Wherein, T_outer ring represents the outer ring temperature of the air conditioner, I_current represents the operating current of the whole unit, T_exhaust represents the exhaust temperature, T_outer pipe represents the temperature of the outdoor unit coil, a3, b3, and c3 are the adjustment coefficients of the operating current of the whole unit, the exhaust temperature, and the outdoor unit coil temperature in the heating mode, respectively, and d3 is the correction value in the heating mode; The correction value d3 in heating mode has different values ​​in different models of air conditioners; or, the correction value d3 in heating mode has the same value in different models of air conditioners.

7. The method according to any one of claims 1 to 6, characterized in that, The method further includes: Before obtaining the operating parameters of the air conditioner, the outdoor unit coil temperature is used as the outer loop temperature to start the air conditioner and run it for a target period of time.

8. The method according to any one of claims 1 to 6, characterized in that, Determining the outer ring temperature of the air conditioner based on the operating parameters and operating mode of the air conditioner includes: The outer ring temperature of the air conditioner is periodically updated based on the operating parameters under the current operating status and the operating mode of the air conditioner.

9. An electronic device, characterized in that, The electronic device includes: Memory, used to store computer instructions; A processor for calling and executing computer instructions in the memory to implement the method for determining the outer ring temperature of an air conditioner as described in any one of claims 1-8.

10. An air conditioner, characterized in that, The air conditioner determines the outer ring temperature using the method described in any one of claims 1-8; or, The air conditioner controls its operation based on the outer ring temperature determined by the method described in any one of claims 1-8; or, The air conditioner has the electronic equipment as described in claim 9.

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