Method and device for detecting outdoor fan of air conditioner, and outdoor unit of air conditioner

Abstract

The present application relates to the technical field of smart home appliances, and discloses a method for detecting an outdoor fan of an air conditioner, characterized in that the outdoor fan of the air conditioner is installed in a housing and is tightened and fixed on a motor shaft by a nut, and the method comprises: determining the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner; determining the looseness of the outdoor fan of the air conditioner according to the collected pressure value and the number of reverse turns. When the air conditioner is not turned on, the method comprehensively determines the looseness of the outdoor fan of the air conditioner by the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner. In the case where the outdoor fan of the air conditioner is loosened due to excessive reverse turns of the outdoor fan of the air conditioner due to adverse wind, it is helpful to more accurately and timely judge the looseness of the outdoor fan and timely remind the user to repair and sell the air conditioner. The present application also discloses a device for detecting the outdoor fan of the air conditioner and an outdoor unit of the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a method and device for detecting an outdoor fan of an air conditioner, and an outdoor unit of an air conditioner. Background Art

[0002] At present, due to the loosening of screws caused by factors such as vibration during long-term use, it is very likely to have a significant adverse effect on the operation of equipment or devices, requiring maintenance personnel to perform irregular inspections, which increases the maintenance workload and cannot completely avoid omissions in human inspections.

[0003] The related technology discloses an electronic screw device, including a screw and a nut, and also including a pressure sensing washer, a collection and control module and an alarm module connected in sequence. The pressure sensing washer is arranged between the screw and the nut, and when it is in direct contact with the nut on the screw, it senses the pressure of the nut on the washer, or when it is in direct contact with the nut, it senses the pressure of the nut on the washer. The pressure sensing washer includes a pressure sensor arranged inside, and an output interface connected to the pressure sensor and the collection and control module. The collection and control module is used to collect the pressure sensed by the pressure sensing washer, and control the alarm module to send a corresponding early warning signal based on the relationship between the collected pressure and a preset pressure range and the change of the pressure. The preset pressure range is the pressure range in which the screw and the nut are tightened and fixed.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] When the air conditioner is not turned on, the outdoor fan may reverse with the headwind. The direction of the outdoor fan reversal is opposite to the direction of the nut tightening, so the reversal of the outdoor fan will make the nut looser and looser, causing the outdoor fan to fall off the motor shaft. Therefore, it is necessary to detect the looseness of the outdoor fan. However, there is currently no solution to detect the looseness of the air conditioner outdoor fan. Summary of the invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a method and device for detecting an outdoor fan of an air conditioner, and an outdoor unit of an air conditioner, so as to detect looseness of the outdoor fan of the air conditioner.

[0008] In some embodiments, the air-conditioning outdoor fan is installed in a cover and is tightened and fixed on the motor shaft by a nut. The method includes: determining the pressure value between the nut and the motor shaft and the number of reverse turns of the air-conditioning outdoor fan; determining the looseness of the air-conditioning outdoor fan based on the collected pressure value and the number of reverse turns.

[0009] In some embodiments, the device includes a processor and a memory storing program instructions, and the processor is configured to execute the above-mentioned method for detecting an outdoor fan of an air conditioner when running the program instructions.

[0010] In some embodiments, the air-conditioning outdoor unit comprises: a cover; an outdoor fan, arranged in the cover, comprising a motor shaft and an air-conditioning outdoor fan screwed on the motor shaft by a nut; a pressure sensor, arranged on the inner wall of the nut, configured to detect and collect the pressure value between the nut and the motor shaft; a magnetic induction component, comprising a magnetic part and a magnetic sensor, the magnetic part is arranged on the blades of the air-conditioning outdoor fan, and the magnetic sensor is arranged on the cover; when the air-conditioning outdoor fan is reversed, the magnetic sensor can sense the rotation of the magnetic part; and, an apparatus for detecting an air-conditioning outdoor fan as described in claim 10; wherein the processor and the pressure sensor and the magnetic induction component are electrically connected respectively.

[0011] The method and device for detecting an outdoor fan of an air conditioner and the outdoor unit of an air conditioner provided in the embodiments of the present disclosure can achieve the following technical effects:

[0012] When the air conditioner is not turned on, the looseness of the air conditioner outdoor fan is determined by the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan. In the case that the air conditioner outdoor fan is loose due to excessive reverse rotation with adverse wind, it is helpful to more accurately and timely determine the looseness of the outdoor fan and promptly remind the user to repair and sell the air conditioner.

[0013] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0015] Figure 1 is a schematic diagram of the overall structure of an air-conditioning outdoor unit provided by an embodiment of the present disclosure;

[0016] Figure 2 It is a schematic diagram of the split structure of an air conditioner outdoor unit provided by an embodiment of the present disclosure;

[0017] Figure 3 is a schematic structural diagram of an outdoor fan of an air conditioner outdoor unit provided by an embodiment of the present disclosure;

[0018] Figure 4 is a schematic diagram of the position of a magnetic sensor of an air conditioner outdoor unit provided by an embodiment of the present disclosure;

[0019] Figure 5 is a schematic diagram of a method for detecting an outdoor fan of an air conditioner provided by an embodiment of the present disclosure;

[0020] Figure 6 is a schematic diagram of another method for detecting an outdoor fan of an air conditioner provided by an embodiment of the present disclosure;

[0021] Figure 7 is a schematic diagram of another method for detecting an outdoor fan of an air conditioner provided by an embodiment of the present disclosure;

[0022] Figure 8 It is a schematic diagram of a device for detecting an outdoor fan of an air conditioner provided in an embodiment of the present disclosure.

[0023] Reference numerals:

[0024] 1: cover; 2: outdoor fan; 21: motor shaft; 22: nut; 23: air conditioner outdoor fan; 24: fan blade; 25: motor bracket; 31: magnetic part; 32: magnetic sensor. DETAILED DESCRIPTION

[0025] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0026] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0027] Unless otherwise stated, the term "plurality" means two or more.

[0028] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0029] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0030] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0031] Combination Figures 1 to 4 As shown, an embodiment of the present disclosure provides an air-conditioning outdoor unit, comprising: a housing 1, an outdoor fan 2, a pressure sensor and a magnetic induction component. The outdoor fan 2 is arranged in the housing 1, and comprises a motor shaft 21 and an air-conditioning outdoor fan 23 screwed on the motor shaft 21 by a nut 22. The pressure sensor is arranged on the inner wall of the nut 22, and is configured to detect and collect the pressure value between the nut 22 and the motor shaft 21. The magnetic induction component comprises a magnetic part 31 and a magnetic sensor 32, the magnetic part 31 is arranged on the blade 24 of the air-conditioning outdoor fan 23, and the magnetic sensor 32 is arranged on the housing 1. When the air-conditioning outdoor fan 23 is reversed, the magnetic sensor 32 can sense the rotation of the magnetic part 31.

[0032] Optionally, the air conditioner outdoor unit further comprises an indoor panel light bar, and the color of the indoor panel light bar can be displayed as any one of dark green, light green, orange and red.

[0033] Optionally, the outdoor fan 2 further includes a motor bracket 25 . The motor bracket 25 is connected to the motor shaft 21 .

[0034] Optionally, the number of magnetic inductors 32 is three, and they are evenly distributed on the housing 1 around the motor shaft 21. The number of magnetic members 31 is one.

[0035] Optionally, the nut 22 is a flange nut.

[0036] Optionally, the nut 22 is tightened with the motor shaft 21 by rotating clockwise.

[0037] Based on the above-mentioned air conditioner outdoor unit, the situation where the air conditioner outdoor fan is blown counterclockwise by the wind is reverse rotation, and the situation where it rotates clockwise normally is forward rotation. When the air conditioner outdoor fan is reversed, the vibration caused by the reverse rotation is more likely to loosen the nut. When the air conditioner outdoor fan is forward rotation, the nut will also loosen. However, in the case of reverse rotation, the loosening of the nut is more affected. Even when the air conditioner outdoor fan is forward rotation, the nut may even be tightened. Therefore, this plan counts the impact of the air conditioner outdoor fan on looseness in the reverse state:

[0038] Combination Figure 5 As shown, the embodiment of the present disclosure provides a method for detecting an outdoor fan of an air conditioner, comprising:

[0039] S501, the air conditioner outdoor unit determines the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan.

[0040] S502: The air conditioner outdoor unit determines the looseness of the air conditioner outdoor fan according to the collected pressure value and the number of reverse rotations.

[0041] By using the method for detecting the outdoor fan of an air conditioner provided by the embodiment of the present disclosure, when the air conditioner is not turned on, the looseness of the outdoor fan of the air conditioner is determined comprehensively by the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner. In the case where the outdoor fan of the air conditioner is loosened due to excessive reverse rotation of the outdoor fan of the air conditioner with adverse wind, it is helpful to more accurately and timely judge the looseness of the outdoor fan and timely remind the user to repair and sell the air conditioner.

[0042] Optionally, the air conditioner outdoor unit determines the looseness of the air conditioner outdoor fan according to the collected pressure value and the number of reverse turns, including: when P≥P1, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is not loose. When P2≤P<P1, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is first-level looseness. When P<P2, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is second-level looseness or third-level looseness according to Num and P. Wherein, P is the pressure value, P1 is the first pressure threshold, P2 is the second pressure threshold, P1>P2, and Num is the number of reverse turns of the air conditioner outdoor fan. The degree of looseness is sorted from small to large: first-level looseness<second-level looseness<third-level looseness. In this way, when the air conditioner is not turned on, it is beneficial to better comprehensively determine the looseness of the air conditioner outdoor fan through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan. Therefore, when the outdoor fan of the air conditioner becomes loose due to excessive reverse rotation due to headwind, it is helpful to more accurately and timely determine the looseness of the outdoor fan and promptly remind the user to repair and sell the air conditioner.

[0043] Optionally, the air-conditioning outdoor unit determines the looseness of the air-conditioning outdoor fan as level 2 looseness or level 3 looseness according to Num and P, including: when P3≤P<P2, the air-conditioning outdoor unit determines the looseness of the air-conditioning outdoor fan as level 2 looseness. Within Tp, the air-conditioning outdoor unit determines Num as the number of continuous reverse turns of the air-conditioning outdoor fan within T1 every T1, or determines Num as the cumulative number of reverse turns of the air-conditioning outdoor fan within T2 within T2, and determines the looseness of the air-conditioning outdoor fan as maintaining level 2 looseness or changing from level 2 looseness to level 3 looseness according to Num. When P<P3, the air-conditioning outdoor unit determines the looseness of the air-conditioning outdoor fan as level 3 looseness. Wherein, P3 is the third pressure threshold, P1>P2>P3, Tp is the duration of the single pressure value detection interval, T1 is the first duration, T2 is the second duration, and Tp≥T2=n*T1. Specifically, n≤3, the value of T1 can be 15 minutes or 20 minutes, the value of T2 can be 1 hour, and the value of Tp can be 1 hour. T1, T2 and Tp are adjusted and set according to actual needs, and are not listed here one by one.

[0044] Specifically, the air conditioner outdoor unit determines whether the looseness of the air conditioner outdoor fan is maintained at level 2 looseness or changed from level 2 looseness to level 3 looseness according to Num, including: within Tp, when the air conditioner outdoor unit detects that Num < N0, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is maintained at level 2 looseness. Within Tp, when the air conditioner outdoor unit detects that Num ≥ N0, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is changed from level 2 looseness to level 3 looseness. Wherein, N0 is the reverse rotation number threshold.

[0045] In this way, when the air conditioner is not turned on, it is helpful to better determine whether the looseness of the air conditioner outdoor fan is secondary looseness or tertiary looseness through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan. Therefore, in the case that the air conditioner outdoor fan is loose due to excessive reverse rotation due to adverse wind, it is helpful to more accurately and timely determine whether the looseness of the outdoor fan is secondary looseness or tertiary looseness, and timely remind the user to repair and sell the air conditioner.

[0046] Optionally, when the number of reverse turns of the air-conditioning outdoor fan is the number of continuous reverse turns of the air-conditioning outdoor fan within the first time length T1, N0=N01. When the number of reverse turns of the air-conditioning outdoor fan is the cumulative number of reverse turns of the air-conditioning outdoor fan within the second time length T2, N0=N02. In this way, the reversal of the air conditioner can be better determined by the pressure value between the nut and the motor shaft, which is conducive to better determining whether the looseness of the air-conditioning outdoor fan is secondary looseness or tertiary looseness through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the air-conditioning outdoor fan. In the case where the air-conditioning outdoor fan is loose due to excessive reversal of the air-conditioning outdoor fan due to adverse wind, it is conducive to more accurately and timely judging whether the looseness of the outdoor fan is secondary looseness or tertiary looseness, and timely reminding the user to repair and sell the air conditioner.

[0047] Optionally, the air conditioner outdoor unit determines the pressure value between the nut and the motor shaft, including: the air conditioner outdoor unit receives the pressure value detected by the pressure sensor. In this way, it is conducive to more timely and accurate determination of the pressure value between the nut and the motor shaft. Therefore, in the case where the air conditioner outdoor fan is loosened due to excessive reverse rotation due to adverse wind, it is conducive to more accurately and timely determining whether the outdoor fan is loose at the second level or the third level, and timely reminding the user to repair and sell the air conditioner.

[0048] Optionally, the air conditioner outdoor unit determines the number of reverse turns of the air conditioner outdoor fan, including: when the air conditioner outdoor fan sensed by the magnetic sensor is reversed, the air conditioner outdoor unit counts the number of reverse turns of the air conditioner outdoor fan to obtain the number of reverse turns of the air conditioner outdoor fan. In this way, it is helpful to better determine whether the looseness of the air conditioner outdoor fan is secondary looseness or tertiary looseness through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan. In the case where the air conditioner outdoor fan is loose due to excessive reverse rotation due to headwind, it is helpful to more accurately and timely judge whether the looseness of the outdoor fan is secondary looseness or tertiary looseness, and timely remind the user to repair and sell the air conditioner.

[0049] Combination Figure 6 As shown, the embodiment of the present disclosure provides another method for detecting an outdoor fan of an air conditioner, comprising:

[0050] S601, the air conditioner outdoor unit determines the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan.

[0051] S602: The air conditioner outdoor unit determines the looseness of the air conditioner outdoor fan according to the collected pressure value and the number of reverse rotations.

[0052] S603, the air conditioner outdoor unit sends a prompt message according to the looseness of the air conditioner outdoor fan.

[0053] By using the method for detecting the outdoor fan of an air conditioner provided by the embodiment of the present disclosure, when the air conditioner is not turned on, the looseness of the outdoor fan of the air conditioner is determined comprehensively through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner, and a prompt message is issued according to the looseness. Therefore, in the case where the outdoor fan of the air conditioner is loosened due to excessive reverse turns of the outdoor fan of the air conditioner with adverse wind, it is helpful to more accurately and timely judge the looseness of the outdoor fan, and timely perform after-sales maintenance for the user, thereby avoiding the danger caused by the loosening of the outdoor fan of the air conditioner.

[0054] Optionally, the air conditioner outdoor unit sends a prompt message according to the looseness of the air conditioner outdoor fan, including: when the looseness of the air conditioner outdoor fan is not loose, the color of the light bar on the indoor panel of the air conditioner outdoor unit control room displays dark green, prompting the user that the air conditioner outdoor fan is currently in a safe state. When the looseness of the air conditioner outdoor fan is a first-level looseness, the color of the light bar on the indoor panel of the air conditioner outdoor unit control room displays light green, prompting the user that the air conditioner outdoor fan is currently in a safe state. When the looseness of the air conditioner outdoor fan is a second-level looseness, the color of the light bar on the indoor panel of the air conditioner outdoor unit control room displays orange, prompting the user that the air conditioner outdoor fan is currently at risk of loosening. When the looseness of the air conditioner outdoor fan is a third-level looseness, the color of the light bar on the indoor panel of the air conditioner outdoor unit control room displays red, prompting the user that the air conditioner outdoor fan is currently seriously loose, and sending maintenance information to the after-sales center. In this way, it is conducive to issuing prompt messages of different risk levels according to different degrees of looseness. Therefore, when the outdoor fan of the air conditioner becomes loose due to excessive reverse rotation due to headwind, it is helpful to more accurately and timely determine the looseness of the outdoor fan, and promptly notify the user for repair and after-sales service, thereby avoiding the danger caused by the looseness of the outdoor fan of the air conditioner.

[0055] Combination Figure 7 As shown, the embodiment of the present disclosure provides another method for detecting an outdoor fan of an air conditioner, comprising:

[0056] S701, after the air conditioner outdoor fan is initially installed, the air conditioner outdoor unit records an initial value P0 of the pressure between the nut and the motor shaft.

[0057] S702, the air conditioner outdoor unit determines the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan.

[0058] S703: When P≥P1, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is not loose.

[0059] S704: When P2≤P<P1, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is level one looseness.

[0060] S705, when P3≤P<P2, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is level 2 looseness.

[0061] S706, within Tp, the air-conditioning outdoor unit determines Num as the continuous reverse rotation number of the air-conditioning outdoor fan within T1 every T1, or determines Num as the accumulated reverse rotation number of the air-conditioning outdoor fan within T2 within T2.

[0062] S707, within Tp, when the air conditioner outdoor unit detects that Num<N0, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is maintained at level 2 looseness.

[0063] S708, within Tp, when the air conditioner outdoor unit detects that Num≥N0, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is changed from level 2 looseness to level 3 looseness.

[0064] S709, when P<P3, the air conditioner outdoor unit determines that the looseness of the air conditioner outdoor fan is level three looseness.

[0065] Where P is the pressure value, P1 is the first pressure threshold, P2 is the second pressure threshold, P3 is the third pressure threshold, P1>P2>P3, Num is the number of reverse turns of the air conditioner outdoor fan, and N0 is the threshold of the number of reverse turns. The degree of looseness is sorted from small to large: first-level looseness < second-level looseness < third-level looseness. Tp is the duration of the single pressure value detection interval, T1 is the first duration, T2 is the second duration, and Tp≥T2=n*T1.

[0066] By adopting the method for detecting the outdoor fan of an air conditioner provided by the embodiment of the present disclosure, when the air conditioner is not turned on, it is helpful to better comprehensively determine the looseness of the outdoor fan of the air conditioner through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner. Therefore, in the case where the outdoor fan of the air conditioner is loose due to excessive reverse rotation of the outdoor fan of the air conditioner due to the adverse wind, it is helpful to more accurately and timely determine the looseness of the outdoor fan and timely remind the user to repair and sell the air conditioner.

[0067] Optionally, P1, P2 and P3 are calculated and set based on P0. In this way, it is helpful to determine the first pressure threshold, the second pressure threshold and the third pressure threshold according to the initial installation of the air-conditioning outdoor fan. It is thus helpful to better determine the looseness of the air-conditioning outdoor fan through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the air-conditioning outdoor fan. Therefore, in the case where the air-conditioning outdoor fan is loose due to excessive reverse rotation due to adverse wind, it is helpful to more accurately and timely judge the looseness of the outdoor fan and promptly remind the user to repair and sell the air conditioner.

[0068] Optionally, P1, P2 and P3 are calculated based on P0, including: P1 = u1 *P0,P2=u 2 *P0,P3=u 3 *P0. Among them, u 1 >u 2 >u 3 Specifically, u 1 The value range of u is [0.95, 1]. 2 The value range of u is (0.4, 0.95). 3 The value range of u is [0, 0.4]. More specifically, u 1 The value of can be 0.95 or 1. 2 The value of can be 0.8 or 0.9. 3 The value of can be 0.1 or 0.4. In this way, the first pressure threshold, the second pressure threshold, and the third pressure threshold can be determined more accurately according to the initial installation of the outdoor fan of the air conditioner. In this way, the first pressure threshold, the second pressure threshold, and the third pressure threshold can be determined more accurately according to the initial installation of the outdoor fan of the air conditioner. This is conducive to better determining the looseness of the outdoor fan of the air conditioner through the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner. Therefore, when the outdoor fan of the air conditioner is loose due to excessive reverse rotation of the outdoor fan of the air conditioner due to the headwind, it is conducive to more accurately and timely judging the looseness of the outdoor fan and timely reminding the user to repair and sell the air conditioner.

[0069] Optionally, the value of T1 can be 15min or 20min, the value of T2 can be 1h, and the value of Tp can be 1h. T1, T2 and Tp can be adjusted and set according to actual needs, and are not listed here one by one. In this way, by limiting the values ​​of T1, T2 and Tp, in order to save energy, the time interval for pressure value detection is generally set to a longer time, and the outdoor fan of the air conditioner is prone to reverse with headwind within Tp. The time interval for detecting the number of reversal circles is short, and it can be discovered in time that the air conditioner reverses too many times, causing the second-level looseness to turn into the third-level looseness, which is conducive to more accurate and timely judgment of the looseness of the outdoor fan and timely reminder of the user to repair and sell the air conditioner.

[0070] Optionally, N0 is associated with P3. Optionally, when P3=0.4P0, N0 is determined to be 120 turns or 150 turns. The values ​​of N0 and P3 can be adjusted and set according to actual needs, and are not listed here one by one. In this way, by limiting the association between N0 and P3, when the outdoor fan of the air conditioner is loose due to excessive reversal of the outdoor fan of the air conditioner due to the headwind, it is helpful to more accurately and timely judge the looseness of the outdoor fan and promptly remind the user to repair and sell the air conditioner.

[0071] Optionally, the number of reversal turns of the outdoor fan of the air conditioner includes: the number of continuous reversal turns of the outdoor fan of the air conditioner within the first time length T1 or the cumulative number of reversal turns of the outdoor fan of the air conditioner within the second time length T2. Wherein, T1<T2. Correspondingly, when the number of reversal turns of the outdoor fan of the air conditioner is the number of continuous reversal turns of the outdoor fan of the air conditioner within the first time length T1, N0=N01. When the number of reversal turns of the outdoor fan of the air conditioner is the cumulative number of reversal turns of the outdoor fan of the air conditioner within the second time length T2, N0=N02. In this way, the reversal of the air conditioner can be better determined by the pressure value between the nut and the motor shaft, so as to better determine the looseness of the outdoor fan of the air conditioner as secondary looseness or tertiary looseness through the two parameters of the pressure value between the nut and the motor shaft and the number of reversal turns of the outdoor fan of the air conditioner. In the case where the outdoor fan of the air conditioner is loose due to excessive reversal with the adverse wind, it is helpful to more accurately and timely judge that the looseness of the outdoor fan is secondary looseness or tertiary looseness, and timely remind the user to repair and sell the air conditioner.

[0072] Combination Figure 8 As shown, an embodiment of the present disclosure provides a device for detecting an outdoor fan of an air conditioner, including a processor 100 and a memory 101. Optionally, the device may also include a communication interface 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other through the bus 103. The communication interface 102 may be used for information transmission. The processor 100 may call the logic instructions in the memory 101 to execute the method for detecting an outdoor fan of an air conditioner in the above embodiment.

[0073] In addition, the logic instructions in the memory 101 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0074] The memory 101 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 100 executes the function application and data processing by running the program instructions / modules stored in the memory 101, that is, the method for detecting the outdoor fan of the air conditioner in the above embodiment is implemented.

[0075] The memory 101 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 101 may include a high-speed random access memory and may also include a non-volatile memory.

[0076] The disclosed embodiment provides an outdoor unit of an air conditioner, characterized in that it includes: a cover 1, an outdoor fan, a pressure sensor, a magnetic induction component and the above-mentioned device for detecting the outdoor fan of the air conditioner. The outdoor fan is arranged in the cover, and includes a motor shaft and an outdoor fan of the air conditioner screwed on the motor shaft by a nut. The pressure sensor is arranged on the inner wall of the nut and is configured to detect and collect the pressure value between the nut and the motor shaft. The magnetic induction component includes a magnetic part and a magnetic sensor, the magnetic part is arranged on the blades of the outdoor fan of the air conditioner, and the magnetic sensor is arranged on the cover. When the outdoor fan of the air conditioner is reversed, the magnetic sensor can sense the rotation of the magnetic part. Among them, the processor is electrically connected to the pressure sensor and the magnetic induction component respectively.

[0077] With the air conditioner outdoor unit provided by the embodiment of the present disclosure, when the air conditioner is not turned on, the looseness of the air conditioner outdoor fan is determined comprehensively by the two parameters of the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan. In the case where the air conditioner outdoor fan is loosened due to excessive reverse turns of the air conditioner outdoor fan due to adverse wind, it is helpful to more accurately and timely determine the looseness of the outdoor fan and timely remind the user to repair and sell the air conditioner.

[0078] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for detecting an outdoor fan of an air conditioner.

[0079] An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned method for detecting an outdoor fan of an air conditioner.

[0080] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0081] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0082] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0083] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0084] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0085] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for detecting an outdoor fan of an air conditioner, It is characterized in that The outdoor fan of the air conditioner is installed in a housing and is screwed and fixed on a motor shaft by a nut. The method comprises: Determine the pressure value between the nut and the motor shaft and the number of reverse turns of the air conditioner outdoor fan; Determine the looseness of the air conditioner outdoor fan based on the collected pressure value and the number of reverse turns; Determining the looseness of the outdoor fan of the air conditioner according to the collected pressure value and the number of reverse turns includes: when P<P2, determining whether the looseness of the outdoor fan of the air conditioner is second-level looseness or third-level looseness according to Num and P; wherein Num is the number of reverse turns of the outdoor fan of the air conditioner; Determining the looseness of the outdoor fan of the air conditioner as level 2 looseness or level 3 looseness according to Num and P includes: In the case of P3≤P<P2, the looseness of the outdoor fan of the air conditioner is determined to be level 2 looseness; within Tp, Num is determined to be the number of continuous reverse turns of the outdoor fan of the air conditioner within T1 every T1, or, within T2, Num is determined to be the cumulative number of reverse turns of the outdoor fan of the air conditioner within T2, and the looseness of the outdoor fan of the air conditioner is determined to be maintained at level 2 looseness or to be changed from level 2 looseness to level 3 looseness according to Num; In the case of P<P3, it is determined that the looseness of the outdoor fan of the air conditioner is level 3 looseness; Wherein, P is the pressure value, P2 is the second pressure threshold, P3 is the third pressure threshold, P2>P3, Tp is the duration of a single pressure value detection interval, T1 is the first duration, T2 is the second duration, and Tp≥T2=n*T1.

2. The method according to claim 1, It is characterized in that Determining the looseness of the outdoor fan of the air conditioner according to the collected pressure value and the number of reverse turns also includes: In the case of P≥P1, it is determined that the looseness of the outdoor fan of the air conditioner is not loose; When P2≤P<P1, the looseness of the outdoor fan of the air conditioner is determined to be first-level looseness; Among them, P1 is the first pressure threshold, P1>P2; the looseness degree is arranged from small to large: first-level looseness <second-level looseness <third-level looseness.

3. The method according to claim 1, It is characterized in that Determining, according to Num, whether the looseness of the outdoor fan of the air conditioner is maintained at level 2 looseness or changes from level 2 looseness to level 3 looseness includes: Within Tp, when Num < N0 is detected, the looseness of the outdoor fan of the air conditioner is determined to be maintained at level 2 looseness; Within Tp, when Num≥N0 is detected, it is determined that the looseness of the outdoor fan of the air conditioner is changed from the second level to the third level; Where N0 is the reversal turn threshold.

4. The method according to claim 1, It is characterized in that The inner wall of the nut is provided with a pressure sensor; the method of determining the pressure value between the nut and the motor shaft comprises: Receive the pressure value detected by the pressure sensor.

5. The method according to claim 1, It is characterized in that The outdoor fan of the air conditioner is provided with a magnetic part, and the cover is provided with a magnetic sensor. When the outdoor fan of the air conditioner is reversed, the magnetic sensor can sense the rotation of the magnetic part; and determining the number of reverse turns of the outdoor fan of the air conditioner includes: When the magnetic sensor senses that the outdoor fan of the air conditioner is reversed, the number of reverse turns of the outdoor fan of the air conditioner is counted to obtain the number of reverse turns of the outdoor fan of the air conditioner.

6. The method according to any one of claims 1 to 5, It is characterized in that After determining the looseness of the outdoor fan of the air conditioner, the method further includes: A prompt message is issued according to the looseness of the air conditioner outdoor fan.

7. The method according to claim 2, It is characterized in that Before determining the pressure value between the nut and the motor shaft and the number of reverse turns of the outdoor fan of the air conditioner, the method further includes: After installing the air conditioner outdoor fan for the first time, record the initial value P0 of the pressure between the nut and the motor shaft.

8. The method according to claim 7, It is characterized in that The P1, the P2 and the P3 are calculated and set according to P0.

9. A device for detecting an outdoor fan of an air conditioner, comprising a processor and a memory storing program instructions, It is characterized in that The processor is configured to execute the method for detecting an outdoor fan of an air conditioner according to any one of claims 1 to 8 when running the program instructions.

10. An air conditioner outdoor unit, It is characterized in that include: Housing; The outdoor fan is arranged in the housing and includes a motor shaft and an air-conditioning outdoor fan screwed onto the motor shaft by a nut; The pressure sensor is arranged on the inner wall of the nut and is configured to detect the pressure value between the nut and the motor shaft; The magnetic induction component comprises a magnetic part and a magnetic sensor, wherein the magnetic part is arranged on the blade of the outdoor fan of the air conditioner, and the magnetic sensor is arranged on the cover; when the outdoor fan of the air conditioner is reversed, the magnetic sensor can sense the rotation of the magnetic part; and, The device for detecting an outdoor fan of an air conditioner as claimed in claim 9; in, The processor is electrically connected to the pressure sensor and the magnetic induction component respectively.

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