WO2023035674A1

WO2023035674A1 - Method and apparatus for controlling outdoor fan, and air conditioner outdoor unit

Info

Publication number: WO2023035674A1
Application number: PCT/CN2022/094997
Authority: WO
Inventors: 谭强; 张飞; 陈建龙; 鞠龙家
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-09-08
Filing date: 2022-05-25
Publication date: 2023-03-16
Also published as: CN113819640A; CN113819640B

Abstract

A method and apparatus for controlling an outdoor fan, and an air conditioner outdoor unit. The method comprises: determining a current rotational speed N of an outdoor fan; when the current rotational speed N is not zero, obtaining an outdoor ambient temperature P, and determining a load level X of the fan; determining a wind-starting current I1 according to the current rotational speed N, the outdoor ambient temperature P and the load level X of the fan, and controlling the outdoor fan to start up according to the wind-starting current I1. The magnitude of the starting current of the outdoor fan can be reasonably adjusted along with specific conditions of the surrounding environment of the outdoor unit, and load conditions of the outdoor fan itself are also taken into consideration, so that the outdoor fan can stably start up, and the startup noise can also be reduced.

Description

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

This application is based on a Chinese patent application with application number 202111050889.0 and a filing date of September 8, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of air conditioning, for example, to a method and device for controlling an outdoor fan, and an outdoor unit of an air conditioner.

Background technique

At present, the start-up of the outdoor fan of the air conditioner usually adopts a high-current dragging method, that is, the outdoor fan is powered on and a fixed current value that can cope with adverse conditions such as headwinds is applied. However, the current value is usually relatively large. If the outdoor fan is started at this fixed current under no headwind or tailwind conditions, the speed of the outdoor fan will increase too quickly, which will make the outdoor fan more prone to noise when it is started. Therefore, the start-up of the outdoor fan should also be combined with the actual conditions of the environment.

Contents of the invention

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is presented below. The summary is not intended to be an extensive overview nor to identify key/important elements or to delineate the scope of these embodiments, but rather serves as a prelude to the detailed description that follows.

Embodiments of the present disclosure provide a method and device for controlling an outdoor fan, and an outdoor unit of an air conditioner, which can control the start-up of the outdoor fan according to the specific conditions of the surrounding environment of the outdoor unit, and reduce noise when the outdoor fan is started.

In some embodiments, the method includes:

Determine the current speed N of the outdoor fan;

When the current speed N is not zero, obtain the outdoor ambient temperature P, and determine the fan load level X;

Determine the windy starting current I1 according to the current speed N, the outdoor ambient temperature P and the fan load level X, and control the outdoor fan to start according to the windy starting current I1.

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 controlling an outdoor fan when executing the program instructions.

In some embodiments, the air conditioner outdoor unit includes:

outdoor fan;

The above-mentioned device for controlling the outdoor fan is electrically connected with the outdoor fan.

In some embodiments, the storage medium stores program instructions, and when the program instructions are executed, the above-mentioned method for controlling an outdoor fan is executed.

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

In the embodiment of the present disclosure, the current rotational speed of the outdoor fan is detected before the outdoor fan is started, and is used to reflect the natural wind condition of the environment. When there is wind in the environment, the outdoor unit of the air conditioner may determine the starting current of the outdoor fan in combination with the wind speed, the outdoor ambient temperature and the load of the fan itself. In this way, the starting current of the outdoor fan will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so that the outdoor fan can start stably while reducing the start-up load. noise.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the corresponding drawings, and these exemplifications and drawings do not constitute a limitation to the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings are not limited to scale and in which:

Fig. 1 is a schematic diagram of a method for controlling an outdoor fan provided by an embodiment of the present disclosure;

Fig. 2 is a schematic diagram of another method for controlling an outdoor fan provided by an embodiment of the present disclosure;

Fig. 3 is a schematic diagram of another method for controlling an outdoor fan provided by an embodiment of the present disclosure;

Fig. 4 is a schematic diagram of another method for controlling an outdoor fan provided by an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of a device for controlling an outdoor fan provided by an embodiment of the present disclosure;

Fig. 6 is a schematic diagram of another device for controlling an outdoor fan provided by an embodiment of the present disclosure.

Detailed ways

In order to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances so as to facilitate the embodiments of the disclosed embodiments described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion.

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

In the embodiments of the present disclosure, the character "/" indicates that the preceding and following objects are an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that there can be three relationships. For example, A and/or B means: A or B, or, A and B, these three relationships.

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

As shown in FIG. 1 , an embodiment of the present disclosure provides a method for controlling an outdoor fan, including:

S101. The outdoor unit of the air conditioner determines the current rotational speed N of the outdoor fan.

S102. In the case that the current rotational speed N is not zero, the outdoor unit of the air conditioner obtains the outdoor ambient temperature P, and determines the load level X of the fan.

S103, the outdoor unit of the air conditioner determines the windy starting current I1 according to the current speed N, the outdoor ambient temperature P and the fan load level X, and controls the outdoor fan to start according to the windy starting current I1.

Using the method for controlling the outdoor fan provided by the embodiments of the present disclosure, the current rotation speed of the outdoor fan is detected before the outdoor fan is started, and the natural wind condition of the environment is reflected by this method. When there is wind in the environment, the outdoor unit of the air conditioner may determine the starting current of the outdoor fan in combination with the wind speed, the outdoor ambient temperature and the load of the fan itself. In this way, the starting current of the outdoor fan will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so that the outdoor fan can start stably while reducing the start-up load. noise.

Optionally, the outdoor unit of the air conditioner further includes a Hall sensor, which is used to detect the current rotational speed of the outdoor fan and is electrically connected to the tachometer. Specifically, one or more magnetic sheets are arranged on the rotor or blades of the outdoor fan. When the outdoor fan rotates, the rotor or blades drive the magnetic sheet to rotate around the shaft. At this time, the current speed of the outdoor fan can be determined by powering on the Hall element. When the magnetic piece passes through the Hall element each time, a square wave signal will be measured, and the current speed N of the outdoor fan can be determined on the tachometer according to the square wave signal per unit time. In this way, the current rotational speed of the outdoor fan can be accurately detected by the Hall sensor of the air conditioner outdoor unit. Compared with the method of judging the headwind state through the back EMF, the detection of the wind speed by the Hall sensor will not cause the wrong judgment of the headwind state due to the small back EMF current, which will cause the outdoor fan to fail to start.

Optionally, determining the current speed N of the outdoor fan by the outdoor unit of the air conditioner includes: detecting the current speed N of the outdoor fan by the outdoor unit of the air conditioner, and judging the rotation direction of the outdoor fan; burden. In this way, the outdoor unit of the air conditioner can distinguish the forward and reverse state and the wind speed of the natural wind in the environment. When the wind is against the wind, the starting current can be increased appropriately to ensure that the outdoor fan can start normally. When the wind is down, the starting current can be appropriately reduced, so that the outdoor fan can start stably and reduce the noise when starting.

Optionally, the outdoor unit of the air conditioner determines whether the current rotational speed N of the outdoor fan is positive or negative according to the direction of rotation includes: when the outdoor fan is at rest, the outdoor unit of the air conditioner determines that the current rotational speed N=0; The machine determines that the current speed N is a positive value; when the outdoor fan is rotating in the forward direction, the air conditioner outdoor unit determines that the current speed N is a negative value. In this way, the air conditioner outdoor unit can distinguish whether the natural wind in the environment is downwind or headwind. When the wind is against the wind, make sure that the current speed N is a positive value, and increase the starting current appropriately to ensure that the outdoor fan can start normally. When the wind is down, determine that the current speed N is a negative value, and appropriately reduce the starting current, so that the outdoor fan can start stably while reducing the noise when starting.

Optionally, there are seven fan load levels. The actual value of fan load level X can be determined according to the specific model of the outdoor fan. When the environment of the outdoor unit of the air conditioner is relatively harsh, the outdoor fan model with a larger load can be selected. Correspondingly, the actual value of the fan load level X will also be larger.

Optionally, the outdoor ambient temperature P may be acquired by one or more temperature sensors installed on the outdoor unit of the air conditioner. The temperature sensor can be used to detect the outdoor ambient temperature P of the outdoor environment where the outdoor unit is located.

Optionally, there is a positive correlation between the windy starting current I1 and the outdoor ambient temperature P. Specifically, when the outdoor ambient temperature is high, the temperature of the motor winding is also high, and the corresponding resistance is also large. At this time, the heat loss is relatively large, so the required starting current will be larger.

Optionally, the determination of the windy starting current I1 by the air conditioner outdoor unit according to the current rotation speed N, the outdoor ambient temperature P, and the fan load level X includes: calculating the air conditioner outdoor unit to obtain the windy starting current I1. Wherein, I0 is the preset no-wind starting current when the current speed N=0, and Y is the starting current coefficient.

Optionally, the no-wind starting current I0 can be adjusted according to the actual conditions of the environment where the outdoor unit is located or the load level of the fan. Specifically, when the environment of the outdoor unit of the air conditioner is relatively harsh, for example, for a scene where it is often windy, the no-wind starting current I0 can be adaptively adjusted larger, and when the environment is always relatively stable, the no-wind starting current I0 can be The adaptability is smaller. When the load level of the fan is high, the no-wind starting current I0 can be adaptively adjusted larger, and when the fan load level is small, the no-wind starting current I0 can be adjusted smaller adaptively.

Optionally, the value range of the starting current coefficient Y is [0, 0.3]. The starting current coefficient Y can be adjusted according to the specific model of the outdoor fan or the actual conditions of the environment. Specifically, the value of the starting current coefficient Y may be 0.01, 0.05 or 0.1.

Optionally, obtaining the starting current coefficient Y for the outdoor unit of the air conditioner includes: determining the starting current coefficient Y for the outdoor unit of the air conditioner according to the no-wind starting current I0. In this way, the starting current coefficient Y will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so the starting current determined accordingly will be more in line with the actual starting conditions of the outdoor fan. Therefore, the outdoor fan can be started stably while reducing the noise when starting.

As shown in FIG. 2 , an embodiment of the present disclosure provides another method for controlling an outdoor fan, including:

S201. The outdoor unit of the air conditioner determines the current rotational speed N of the outdoor fan.

S202. The outdoor unit of the air conditioner judges whether the current rotation speed N=0.

S203, when the current speed N=0, the outdoor unit of the air conditioner controls the outdoor fan to start according to the no-wind starting current I0.

S204. In the case that the current rotational speed N is not zero, obtain the outdoor ambient temperature P, and determine the load level X of the fan.

S205. The outdoor unit of the air conditioner determines the windy starting current I1 according to the current rotation speed N, the outdoor ambient temperature P and the fan load level X, and controls the outdoor fan to start according to the windy starting current I1.

Using the method for controlling the outdoor fan provided by the embodiments of the present disclosure, the current rotation speed of the outdoor fan is detected before the outdoor fan is started, and the natural wind condition of the environment is reflected by this method. In a windless environment, the outdoor fan keeps running normally. And when there is wind in the environment, the outdoor unit of the air conditioner can determine the starting current of the outdoor fan in combination with the wind speed, the outdoor ambient temperature and the load of the fan itself. In this way, the starting current of the outdoor fan will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so that the outdoor fan can start stably while reducing the start-up load. noise.

Optionally, the no-wind starting current I0 can be adjusted according to the actual conditions of the environment where the outdoor unit is located or the load level of the fan. Specifically, when the environment is relatively harsh, for example, for a scene where it is often windy, the no-wind starting current I0 can be adjusted to be larger, and when the environment is always relatively stable, the no-wind starting current I0 can be adjusted to be smaller Some. When the load level of the fan is high, the no-wind starting current I0 can be adaptively adjusted larger, and when the fan load level is small, the no-wind starting current I0 can be adjusted smaller adaptively.

As shown in FIG. 3 , an embodiment of the present disclosure provides another method for controlling an outdoor fan, including:

S301. The outdoor unit of the air conditioner determines the current rotational speed N of the outdoor fan.

S302. The outdoor unit of the air conditioner judges whether the current rotation speed N=0.

S303, in the case that the current rotation speed N is not zero, the air conditioner outdoor unit judges whether the current rotation speed N≥N0.

S304. In the case of the current rotational speed N≥N0, the outdoor unit of the air conditioner controls the outdoor fan not to start.

S305. Under the condition that the current rotational speed N<N0, the outdoor unit of the air conditioner acquires the outdoor ambient temperature P, and determines the load level X of the fan.

S306. The outdoor unit of the air conditioner determines the windy starting current I1 according to the current rotation speed N, the outdoor ambient temperature P and the fan load level X, and controls the outdoor fan to start according to the windy starting current I1.

Using the method for controlling the outdoor fan provided by the embodiments of the present disclosure, the current rotation speed of the outdoor fan is detected before the outdoor fan is started, and the natural wind condition of the environment is reflected by this method. When there is wind in the environment, the outdoor unit of the air conditioner may determine the starting current of the outdoor fan in combination with the wind speed, the outdoor ambient temperature and the load of the fan itself. However, when the environment of the outdoor unit is extremely harsh, for example, in a situation where the headwind rotates at a very high speed, the outdoor fan will not be activated for the sake of safe operation of the outdoor unit of the air conditioner. In this way, the starting current of the outdoor fan will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so that the outdoor fan can start stably while reducing the start-up load. noise.

Optionally, N0 is a preset speed threshold, and the value can be adjusted according to the actual conditions of the environment where the outdoor unit is located. Specifically, when the environment of the outdoor unit of the air conditioner is relatively harsh, for example, for a scene where it is often windy, the rotational speed threshold N0 may be adaptively adjusted larger. And when the environment is always relatively stable, the speed threshold N0 can be adaptively smaller.

As shown in FIG. 4 , an embodiment of the present disclosure provides another method for controlling an outdoor fan, including:

S401. The outdoor unit of the air conditioner determines the current rotational speed N of the outdoor fan.

S402. The outdoor unit of the air conditioner judges whether the current rotation speed N=0.

S403, in the case of the current rotational speed N=0, the outdoor unit of the air conditioner controls the outdoor fan to start according to the no-wind starting current I0.

S404, in the case that the current rotation speed N is not zero, the outdoor unit of the air conditioner judges whether the current rotation speed N≥N0.

S405, in the case of the current rotation speed N≥N0, the outdoor unit of the air conditioner controls the outdoor fan not to start.

S406. In the case of the current rotation speed N<N0, the outdoor unit of the air conditioner obtains the outdoor ambient temperature P, and determines the load level X of the fan.

S407. The outdoor unit of the air conditioner determines the windy starting current I1 according to the current speed N, the outdoor ambient temperature P and the fan load level X, and controls the outdoor fan to start according to the windy starting current I1.

Using the method for controlling the outdoor fan provided by the embodiments of the present disclosure, the current rotation speed of the outdoor fan is detected before the outdoor fan is started, and the natural wind condition of the environment is reflected by this method. In a windless environment, the outdoor fan keeps running normally. When there is wind in the environment, the outdoor unit of the air conditioner may determine the starting current of the outdoor fan in combination with the wind speed, the outdoor ambient temperature and the load of the fan itself. However, when the environment of the outdoor unit is extremely harsh, for example, in a situation where the headwind rotates at a very high speed, the outdoor fan will not be activated for the sake of safe operation of the outdoor unit of the air conditioner. In this way, the starting current of the outdoor fan will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so that the outdoor fan can start stably while reducing the start-up load. noise.

As shown in FIG. 5 , an embodiment of the present disclosure provides an apparatus for controlling an outdoor fan, including a determination module 501 , an acquisition module 502 and an activation module 503 . The determination module 501 is configured to determine the current rotational speed N of the outdoor fan. The obtaining module 502 is configured to obtain the outdoor ambient temperature P and determine the fan load level X when the current rotation speed N is not zero. The starting module 503 is configured to determine the windy starting current I1 according to the current speed N, the outdoor ambient temperature P and the fan load level X, and control the outdoor fan to start according to the windy starting current I1.

With the device for controlling the outdoor fan provided by the embodiments of the present disclosure, the current rotation speed of the outdoor fan is detected before the outdoor fan is started, and the natural wind condition of the environment is reflected by this. When there is wind in the environment, the outdoor unit of the air conditioner may determine the starting current of the outdoor fan in combination with the wind speed, the outdoor ambient temperature and the load of the fan itself. In this way, the starting current of the outdoor fan will be reasonably adjusted according to the specific conditions of the surrounding environment of the outdoor unit, and the load of the outdoor fan itself will also be considered, so that the outdoor fan can start stably while reducing the start-up load. noise.

As shown in FIG. 6 , an embodiment of the present disclosure provides an apparatus for controlling an outdoor fan, including a processor (processor) 601 and a memory (memory) 602 . Optionally, the device may further include a communication interface (Communication Interface) 603 and a bus 604. Wherein, the processor 601 , the communication interface 603 , and the memory 602 may communicate with each other through the bus 604 . The communication interface 603 can be used for information transmission. The processor 601 may call the logic instructions in the memory 602 to execute the method for controlling an outdoor fan in the above embodiment.

In addition, the above-mentioned logic instructions in the memory 602 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product.

The memory 602, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 601 executes the program instructions/modules stored in the memory 602 to execute functional applications and data processing, that is, to implement the method for controlling the outdoor fan in the above-mentioned embodiments.

The memory 602 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal device, and the like. In addition, the memory 602 may include a high-speed random access memory, and may also include a non-volatile memory.

An embodiment of the present disclosure provides an outdoor unit of an air conditioner, including an outdoor fan and the above-mentioned device for controlling the outdoor fan. Wherein, the above-mentioned device for controlling the outdoor fan is electrically connected with the outdoor fan.

An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the above-mentioned method for controlling an outdoor fan.

The above-mentioned storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to make a computer device (which can be a personal computer, a server, or a network equipment, etc.) to perform all or part of the steps of the method described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disc, etc. A medium that can store program code, or a transitory storage medium.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, procedural, and other changes. The examples merely represent possible variations. Individual components and functions are optional unless explicitly required, and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in the present application are used to describe the embodiments only and are not used to limit the claims. As used in the examples and description of the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well unless the context clearly indicates otherwise . Similarly, the term "and/or" as used in this application is meant to include any and all possible combinations of one or more of the associated listed ones. Additionally, when used in this application, the term "comprise" and its variants "comprises" and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitations, an element defined by the statement "comprising a ..." does not exclude the presence of additional identical elements in the process, method or apparatus comprising said element. Herein, what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other. For the method, product, etc. disclosed in the embodiment, if it corresponds to the method part disclosed in the embodiment, then the relevant part can refer to the description of the method part.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraints of the technical solution. Said artisans may implement the described functions using different methods for each particular application, but such implementation should not be regarded as exceeding the scope of the disclosed embodiments. The skilled person can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

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 illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined Or it can be integrated into another system, or some features can be ignored, or not implemented. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the disclosure. In this regard, each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than that disclosed in the description, and sometimes there is no specific agreement between different operations or steps. order. For example, two consecutive operations or steps may, in fact, be performed substantially concurrently, or they may sometimes be performed in the reverse order, depending upon the functionality involved. Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Claims

A method for controlling an outdoor fan, comprising:

Determine the current speed N of the outdoor fan;

When the current speed N is not zero, obtain the outdoor ambient temperature P, and determine the fan load level X;

Determine the windy starting current I1 according to the current speed N, the outdoor ambient temperature P and the fan load level X, and control the outdoor fan to start according to the windy starting current I1.
The method according to claim 1, wherein the determining the windy starting current I1 according to the current rotational speed N, the outdoor ambient temperature P and the fan load level X includes:

Calculate I1=Y*(N+P+10X)+I0 to obtain the windy starting current I1;

Wherein, I0 is the preset no-wind starting current when the current speed N=0, and Y is the starting current coefficient.
The method according to claim 2, wherein obtaining the starting current coefficient Y comprises:

Determine the starting current coefficient Y according to the windless starting current I0.
The method according to claim 1, wherein said determining the current rotational speed N of the outdoor fan comprises:

Detect the current speed of the outdoor fan, and judge the rotation direction of the outdoor fan;

Determine whether the current rotational speed N of the outdoor fan is positive or negative according to the direction of rotation.
The method according to claim 4, wherein the determining whether the current rotational speed N of the outdoor fan is positive or negative according to the direction of rotation comprises:

When the outdoor fan is at rest, the current speed N=0;

When the outdoor fan is in reverse rotation, the current speed N is a positive value;

When the outdoor fan is rotating in the forward direction, the current speed N is a negative value.
The method according to any one of claims 1 to 5, further comprising:

In the case of the current speed N=0, the outdoor fan is controlled to start at the no-wind starting current I0.
The method according to any one of claims 1 to 5, further comprising:

When the current speed N is greater than or equal to the preset speed threshold N0, the outdoor fan is controlled not to start.
A device for controlling an outdoor fan, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute any one of claims 1 to 7 when running the program instructions. The method for controlling an outdoor fan.
An air conditioner outdoor unit, characterized in that it comprises:

outdoor fan;

The device for controlling an outdoor fan according to claim 8 is electrically connected with the outdoor fan.
A storage medium storing program instructions, wherein the program instructions execute the method for controlling an outdoor fan according to any one of claims 1 to 7 when running.