CN115183399A - A control method and device for preventing snow from an outdoor unit of an air conditioner, and an air conditioner - Google Patents

Abstract

The invention discloses a snow prevention control method and device for an air conditioner outdoor unit and an air conditioner. The control method may include: the method comprises the steps of obtaining the current total energy requirement of the air-conditioning outdoor unit according to the fact that the environmental information of the air-conditioning outdoor unit meets the preset conditions, controlling the fan of the air-conditioning outdoor unit to start according to the total energy requirement as zero, clearing snow on fan blades of the fan, and controlling the fan to operate at a preset rotating speed for at least a first preset time; detecting the real-time current of the running fan, and controlling the fan to stop or return to control the fan to run at a preset rotating speed for at least a first preset time according to the range of the real-time current. The snow accumulation preventing device can accurately find the snow accumulation preventing time based on the environment condition of the outdoor unit of the air conditioner, so that the purpose of preventing fan blades on a fan of the outdoor unit from being damaged is achieved, the problem of overall damage possibly caused by accumulated snow is effectively avoided, and the reliability of the overall machine is improved. In addition, the scheme provided by the invention also has the outstanding advantages of power consumption saving, high safety and the like.

Description

A control method and device for preventing snow from an outdoor unit of an air conditioner, and an air conditioner

technical field

The invention relates to the technical field of intelligent control of air conditioners, and more specifically, the invention can provide a control method and device for preventing snow of an outdoor unit of an air conditioner, and an air conditioner.

Background technique

With the widespread use of air-conditioning equipment, more and more regions have begun to install air-conditioning equipment in large areas. However, in areas with windy and snowy weather, snow is likely to form on the fan blades of the outdoor unit of the air conditioner in the standby state, resulting in abnormal operation of the outdoor unit; problems such as abnormal noise when the equipment is working, damage to the fan blades and even damage to the outdoor unit may occur. , this problem is more serious in areas with low temperature such as the north. In addition, in the season of alternating autumn and winter or alternating winter and spring, the snow deposited in some areas will melt and then freeze. In this case, the torque of fan startup and operation will often increase significantly, and in severe cases, the outdoor unit motor will be directly burned. Therefore, how to effectively reduce or even avoid the influence of snow on the outdoor unit fan blades on the operation of the outdoor unit of the air conditioner has become a technical problem to be solved urgently by those skilled in the art and a constant research focus.

SUMMARY OF THE INVENTION

One of the main purposes of the present invention is to provide a control method and device for preventing snow of an outdoor unit of an air conditioner, and an air conditioner, which aims to solve the problem that the fan blades of the outdoor unit of the existing air conditioner are easily affected by snow accumulation and damage the outdoor unit of the air conditioner, so as to improve the performance of the air conditioner. The reliability of the outdoor unit of the equipment and the improvement of user satisfaction have multiple purposes.

In order to achieve the above technical purpose, one or more embodiments of the present invention can provide a control method for snow prevention of an outdoor unit of an air conditioner, the control method may include but not limited to at least one of the following steps. The current total energy demand of the outdoor unit of the air conditioner is obtained according to the information about the environment where the outdoor unit of the air conditioner is located and satisfying the preset condition. According to the zero total energy demand, the fan of the outdoor unit of the air conditioner is controlled to start to clear the snow on the fan blades. The fan is controlled to run at a preset rotational speed for at least a first preset duration. The real-time current of the running fan is detected, and according to the range of the real-time current, the fan is controlled to stop or return to the step of controlling the fan to run at a preset speed for at least a first preset duration.

Based on the above technical solutions, the present invention can activate the intelligent anti-snow function based on the real-time environmental conditions where the outdoor unit of the air conditioner is located, that is, perform snow removal action, and specifically utilize the rotation of the fan blades to realize intelligent and automatic cleaning on the blades of the outdoor unit. of snow. The present invention can also judge whether the stored snow has been completely cleared through the technical means of current comparison, and can control the equipment to continue clearing or end clearing according to the judgment result. The entire intelligent snow accumulation prevention scheme of the present invention does not require user participation or manual operation, and has the outstanding advantages of good snow removal effect and high intelligence. It can be seen that the present invention can better solve at least one problem existing in the prior art.

Further, obtaining the current total energy of the outdoor unit of the air conditioner according to the information on the environment where the outdoor unit of the air conditioner is located meets the preset conditions, including:

Get real-time weather information from the cloud.

Obtain the current total energy demand of the outdoor unit for the wind and snow signal according to the real-time weather information.

Based on the above-mentioned improved technical solution, the present invention can accurately determine whether the location of the outdoor unit is snowy weather through the wind and snow signal provided by the cloud, and can perform snow removal operation only when the judgment result is snowy weather, effectively avoiding misjudgment The problem occurs, the reliability of the present invention is improved and the power consumption is saved.

Further, obtaining the current total energy demand of the outdoor unit of the air conditioner according to the information on the environment where the outdoor unit of the air conditioner is located meets the preset conditions, further comprising:

Get the real-time ambient temperature of the outdoor unit.

According to the fact that the real-time ambient temperature is continuously less than or equal to the preset temperature value within the first set time period, the step of acquiring real-time weather information from the cloud is performed.

Based on the above-mentioned improved technical solution, the present invention can perform the process of real-time ambient temperature judgment before the step of obtaining real-time weather, so as to judge whether the current temperature can meet the conditions of snow deposition. The present invention can avoid the misjudgment of the ambient temperature that may be caused by a single temperature detection by repeating the temperature judgment in a continuous period of time, and can truly reflect the real-time environment where the outdoor unit is located through multiple temperature judgments within the continuous period of time. temperature, it can be seen that the intelligent judgment strategy provided by the present invention has stronger reliability.

Further, according to the total energy demand being zero, controlling the activation of the fan of the outdoor unit of the air conditioner includes:

The air conditioner is controlled to continuously or intermittently send a reminder to the user within the second preset period of time according to the total energy that needs to continue to be zero in the second preset period of time.

The fan of the outdoor unit of the air conditioner is controlled to start according to the preset speed.

Further, the step of issuing a reminder to the user includes:

Control the operation of the buzzer on the outdoor unit of the air conditioner and/or control the cloud to send prompt information to the user terminal.

Based on the above-mentioned improved technical solutions, some embodiments of the present invention can notify the corresponding personnel before starting the snow clearing treatment (ie, before entering the snow accumulation prevention mode), so as to avoid the risk of injury caused by the cleared snow. , it can be seen that the present invention also has outstanding advantages such as higher safety.

Further, according to the real-time current range, controlling the fan to stop includes:

Read the standard current after the fan of the outdoor unit of the air conditioner runs at a preset speed for a first preset period of time during the commissioning phase.

Control the fan to stop according to the deviation between the standard current and the real-time current less than or equal to the set value.

Further, the deviation between the standard current and the real-time current is: the ratio of the absolute value of the difference between the standard current and the real-time current to the standard current.

Based on the above-mentioned improved technical solution, the present invention can accurately determine whether the snow removal action can be stopped by comparing it with the standard current after running at a preset rotational speed for a first preset duration in the debugging stage, so as to determine to control the operation of the fan Stop the timing and reduce power consumption as much as possible.

Further, the control method of the present invention further includes: controlling the fan to stop according to the fact that the running duration of the fan of the outdoor unit reaches a third preset duration after the fan is started this time.

Based on the above-mentioned improved technical solution, the present invention can also control the fan to stop working in a timely manner in the event of an unexpected situation, so as to avoid the problem of energy waste caused by the useless operation of the fan for a long time. For example, when the current detection device fails, the accurate real-time current cannot be detected, or in unexpected environments such as long-term snowstorms. The solution based on the clever threshold setting of the third preset duration, for example, can be one hour, and the present invention can avoid the ineffective operation of the fan of the outdoor unit of the air conditioner as much as possible.

In order to achieve the above technical purpose, one or more embodiments of the present invention can also provide a control device for preventing snow of an outdoor unit of an air conditioner. , current detection module and result judgment module.

The energy demand obtaining module is used to obtain the current total energy demand of the air conditioner outdoor unit according to the environmental information where the air conditioner outdoor unit is located and satisfying a preset condition.

The fan start module is used to control the start of the fan of the outdoor unit of the air conditioner according to the total energy demand, so as to clear the snow on the fan blades of the fan.

The fan control module is configured to control the fan to run at a preset rotational speed for at least a first preset duration.

The current detection module is used to detect the real-time current of the running fan.

The result judgment module is used to control the fan to stop or control the fan control module to continue to control the fan to run at a preset rotational speed for at least a first preset duration according to the range of the real-time current.

Based on the control device for preventing snow of an outdoor unit provided by the present invention, the present invention can start an intelligent snow removal action based on the real-time environmental conditions where the outdoor unit of the air conditioner is located, and utilize the rotation of the fan blades to intelligently and automatically clean the snow stored on the blades . The present invention can judge whether the snow stored on the fan blade has been completely cleared by the technical means of current comparison, and can continue clearing or end clearing according to the judgment result. The entire intelligent snow removal scheme of the present invention does not require manual operation or judgment by the user, and has many outstanding advantages of good snow removal effect and high degree of intelligence. It can be seen that the present invention can solve at least one problem existing in the prior art.

In order to achieve the above technical purpose, one or more embodiments of the present invention can specifically provide an air conditioner, and the air conditioner may include but not be limited to the control device for preventing snow of the outdoor unit of the air conditioner in any embodiment of the present invention.

The beneficial effects of the present invention are as follows: the present invention can accurately find the opportunity for snow prevention treatment based on the environmental conditions of the outdoor unit of the air conditioner, so as to achieve the purpose of avoiding damage to the fan blades on the fan of the outdoor unit, thereby effectively avoiding the possibility of snow accumulation. The resulting problem of damage to the whole machine improves the reliability of the whole machine. Further, the present invention judges whether there is a possibility of snow based on the real-time ambient temperature, and judges whether there is a snowstorm signal according to the real-time weather information provided by the cloud under the premise that the real-time ambient temperature satisfies the conditions, and if there is a snowstorm signal According to the outdoor unit in the standby state, the outdoor unit is controlled to enter the anti-snow working mode, that is, the snow is cleared by the rotation of the fan blade. It can be seen that the technical solution provided by the present invention has outstanding advantages such as strong reliability and high degree of intelligence.

The present invention can comprehensively consider a variety of factors to intelligently determine whether snow accumulation treatment is required, so as to avoid the influence of snow accumulation on the outdoor unit of the air conditioner, and at the same time, reduce the power consumption of the snow accumulation prevention treatment of the present invention as much as possible, and avoid possible additional functions. consumption or energy waste, user satisfaction is high, and user experience is very good.

The present invention can remind the user and/or related personnel by sounding the buzzer or sending a reminder message to the terminal, so as to avoid the situation that the snow which is cleaned by the rotation of the fan blade may hurt people. It can be seen that the present invention also has higher The advantages of security improve user satisfaction and provide better user experience.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative efforts.

FIG. 1 shows a schematic flowchart of a control method for snow prevention of an outdoor unit of an air conditioner in one or more embodiments of the present invention.

FIG. 2 shows a schematic flowchart of a specific implementation of snow prevention control for an outdoor unit of an air conditioner in one or more embodiments of the present invention.

FIG. 3 shows a schematic structural diagram of a control device for preventing snow of an outdoor unit of an air conditioner in one or more embodiments of the present invention.

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , and with reference to FIG. 2 , one or more embodiments of the present invention can specifically provide a control method for preventing snow of an outdoor unit of an air conditioner. The present invention can prevent the outdoor unit from accumulating snow based on the information provided by the cloud. It can be seen that the present invention can specifically provide an outdoor unit intelligent control method based on the cloud for preventing snow accumulating.

As shown in FIG. 2 , the method for controlling snow prevention of an outdoor unit of an air conditioner in the present invention may include, but is not limited to, one or more of the following steps, which are specifically described below.

First, the present invention obtains the current total energy demand N of the air conditioner outdoor unit (the cooling or heating demand from the indoor unit to the outdoor unit) according to the real-time environmental information where the air conditioner outdoor unit is located and satisfying a preset condition.

In the present invention, the current total energy requirement N of the outdoor unit of the air conditioner can have two situations, specifically including the total energy requirement N=0 or the total energy requirement N≠0 of the air conditioner outdoor unit.

As shown in FIG. 2 , in the present invention, the steps of acquiring the current total energy demand of the outdoor unit of the air conditioner according to the current environment information of the outdoor unit of the air conditioner meeting a preset condition may specifically include: acquiring real-time weather information from the cloud according to the current air conditioner positioning information , that is, the real-time weather of the exact location where the air conditioner is located through the cloud can be obtained, and the environmental information in the present invention includes real-time weather information; and then according to the real-time weather information, specifically the wind and snow signal on, the current total energy requirement N of the outdoor unit of the air conditioner can be obtained. The preset conditions of the invention include, but are not limited to, the real-time weather information being the wind and snow signal on.

During specific implementation, the smart air conditioner in one or more embodiments of the present invention can obtain real-time weather information from the cloud in real time through a networked device (such as an IoT module, that is, an Internet of Things module, the full name is Internet of Things). Wind and snow weather signal. Among them, when the wind and snow signal is on, it means that the current location is snowing, that is, the location of the outdoor unit of the air conditioner is snowing; when the wind and snow signal is off, it means that there is no snow at the current location, that is, the location where the outdoor unit of the air conditioner is located is not snowing. Snow.

As shown in FIG. 2 , in the present invention, obtaining the current total energy demand N of the outdoor unit of the air conditioner according to the environmental information where the outdoor unit of the air conditioner is located satisfies a preset condition as described above, may further include: before performing the real-time weather judgment, obtaining the real-time information of the outdoor unit where the outdoor unit is located. The ambient temperature T, the ambient information includes the real-time ambient temperature T; according to the real-time ambient temperature T continuously less than or equal to the preset temperature value T1 (T≤T1 duration t1) within the first set time period t1, the real-time acquisition from the cloud is performed. The steps of weather information to avoid the problem of temperature misjudgment that may occur in a single temperature detection, the preset conditions include but are not limited to the real-time ambient temperature T continuously less than or equal to the preset temperature value T1 within the first set time period t1 . In some embodiments of the present invention, the preset temperature value T1=3°C, and the first set time period t1 is 10min, then the real-time ambient temperature T is continuously less than 3°C within 10 minutes to satisfy the ambient temperature preset condition, for example, T= This condition is satisfied when 2°C < 3°C, and it is predicted that there is a condition or possibility of snowing outdoors, that is, there is a condition or possibility of snowing in the geographical location where the outdoor unit is located.

Next, determine whether the total energy demand N of the outdoor unit of the air conditioner is zero. According to the total energy demand N is zero, it can be judged that the outdoor unit of the air conditioner is in the standby state, and the fan of the outdoor unit of the air conditioner of the present invention is controlled to start to enter the "anti-snow mode", so as to clear the snow on the fan blades, and the "anti-accumulation mode" In the "snow mode", the fan is controlled to run at the preset speed A for at least the first preset duration C1. In some preferred embodiments of the present invention, controlling the start of the fan of the outdoor unit of the air conditioner according to the total energy demand N of the outdoor unit of the air conditioner is zero includes: judging that the air conditioner is continuously zero according to the total energy demand N of the outdoor unit in the second set time period t2. The outdoor unit is in a standby state (ie, a stop operation state), and then the air conditioner is controlled to continuously or intermittently issue a reminder to the user within the second preset time period C2, and then the fan of the outdoor unit of the air conditioner is controlled to start according to the preset rotation speed A, so as to pass the outdoor unit. The way the fan blades rotate on the upper part of the fan clears the snow falling on the blades. It is understandable that the "standby state" involved in the present invention can be understood as the fact that the outdoor unit of the air conditioner is not currently running, and the fans and other equipment of the outdoor unit of the air conditioner are in a stopped and inactive state. The second preset time period t2 of the present invention may be, for example, 10 minutes, that is, according to the total energy demand N continuously being zero within ten minutes, it is determined that the outdoor unit of the air conditioner is currently in a standby state; the second preset time period C2 of the present invention may be, for example, 3min, that is, a reminder is given by the buzzer sounding or sending a message to the user terminal within 3 minutes; of course, the parameter setting of the present invention is not limited to the values in the above example.

More specifically, the present invention sends a reminder to the user before snow removal includes: controlling the operation of the buzzer of the outdoor unit of the air conditioner and/or controlling the cloud to send a prompt message to the designated recipient terminal, indicating that the outdoor unit of the air conditioner is about to act, so as to achieve Remind the relevant personnel to stay away from the outdoor unit of the air conditioner to avoid the risk of injury caused by the snow that may be cleared.

Among them, the buzzer can work in a sounding manner, and the prompt information sent to the terminal may include but not limited to snow prevention treatment prompt code information, etc., and the designated recipients include but are not limited to users, air conditioning maintenance personnel, etc. Wait.

Thirdly, after the fan runs at the preset rotational speed A for at least the first preset duration C1, the real-time current B of the fan of the running air conditioner outdoor unit is detected and recorded. The preset rotational speed A in some embodiments of the present invention may be, for example, 300 r/min, that is, the present invention can control the fan to blow the falling snow out of the outdoor unit at 300 revolutions per minute, so as to prevent the snow from falling on the fan blades of the outdoor unit. Accumulation, thereby avoiding the problem of abnormal operation of the outdoor unit that may be caused by snow on the wind blades, and avoiding serious problems such as ice damage to the wind blades or even burning of the motor caused by the melting of the snow. In addition, the first preset duration C1 set by the present invention may be, for example, 15 minutes, that is, after 15 minutes of operation, it is possible to judge whether the snow stored on the wind blade is cleaned up.

Finally, control the fan to stop according to the range of the real-time current B, or return to the above step of controlling the fan to run at the preset rotational speed A for at least the first preset duration C1 according to the range of the real-time current B. Wherein, in some embodiments of the present invention, controlling the fan to stop according to the specific range of the real-time current B includes: reading the standard current B1 of the fan of the outdoor unit after the fan of the outdoor unit runs at the preset rotational speed A for the first preset duration C1 in the debugging stage; and then according to The deviation between the standard current B1 and the real-time current B is less than or equal to the set value b% to control the fan to stop.

More specifically, the deviation between the standard current B1 and the real-time current B in some embodiments of the present invention is: the ratio of the absolute value of the difference between the standard current B1 and the real-time current B and the standard current B1, then the present invention controls the fan to stop. The condition may be: deviation=|B-B1|÷B1≤b%. In some embodiments of the present invention, b% may be, for example, 1%, which means that when the deviation between the standard current B1 and the real-time current B is less than or equal to 1%, it is judged that the snow on the wind blade has been cleaned. Taking the standard current B1=2.557A as an example, if the detected real-time current B=2.56A of the outdoor fan of the air conditioner, the deviation=|2.56-2.557|÷2.557=0.12%<1%, and the result can be used to illustrate the standard current The deviation between B1 and the real-time current B is less than the set value. At this time, it can be judged that there is no snow on the fan blades of the outdoor unit of the air conditioner, and there is no risk of breaking the fan blades; otherwise, the above-mentioned process of controlling the fan to continue to run at the specified speed can be repeated. step until the deviation between the detected standard current B1 and the real-time current B is less than the set value.

It can be seen from this that: the present invention can achieve the purpose of determining the snow removal effect according to the current comparison result. When the deviation of the current comparison result is less than or equal to the set value, it can be shown that there is less snow remaining on the wind blade at this time (not Affect the fan blades) or no remaining, exit the "anti-snow mode"; when the deviation of the current comparison file is greater than the set value, it means that there is still a lot of snow on the fan blades of the outdoor unit at this time, which is likely to cause As a result, the outdoor unit runs abnormally. At this time, it is necessary to control the outdoor unit of the air conditioner to continue to run the "anti-snow mode" to remove the snow on the fan blades.

As an optional technical solution, in some embodiments of the present invention, the method for controlling snow prevention of the outdoor unit of the air conditioner may include: controlling the fan according to the operation duration of the fan of the outdoor unit of the air conditioner after the current startup has reached the third preset duration C3 stop. As a means to further improve the reliability of the present invention, this method can avoid failures (such as failure of the current detection device) or special circumstances (such as very high snow levels and continuous snowfall for a long time, and it is difficult to remove snow by rotating the wind blades) Control the outdoor unit of the air conditioner to stop in time to avoid excessive work of the outdoor unit and avoid energy waste. For example, in special cases such as heavy snowstorms lasting 12 hours or more, it is necessary to clear the snow manually, so as to avoid accidents such as energy waste and possible damage to the wind blades caused by the forced use of the solution of the present invention. The third preset duration C3 may be, for example, 1 hour. In some embodiments of the present invention, if the snow cannot be completely removed after continuously cleaning the snow for one hour, the fan is controlled to stop running, and the user terminal can also be notified at this time. Or the maintenance personnel terminal sends a notification message such as "snow clearing cannot be completed" to notify the relevant personnel to do the next step according to the actual situation. It can be seen that the technical solution provided by the present invention is trustworthy for the user, and the user has a better experience of using the air conditioner.

As shown in FIG. 3 , the present invention is based on the same technical concept as the control method for snow prevention of an outdoor unit of an air conditioner, and one or more embodiments of the present invention can provide a control device for snow prevention of an outdoor unit of an air conditioner. Specifically, the control device specifically includes, but is not limited to, an energy demand acquisition module, a fan start-up module, a fan control module, a current detection module, and a result judgment module. The energy demand acquisition module is connected to the fan start module, and the fan start module is connected to the fan control module. The fan control module is connected with the current detection module, the current detection module is connected with the result judgment module, and the result judgment module can be connected with the fan control module.

The energy demand obtaining module can be configured to obtain the current total energy demand N of the air conditioner outdoor unit according to the environmental information where the air conditioner outdoor unit is located and satisfying a preset condition.

More specifically, the snow prevention control device for an outdoor unit of an air conditioner provided by the present invention may further include a weather acquisition module and a temperature acquisition module.

The weather acquisition module can be specifically used to acquire real-time weather information from the cloud, and the environmental information of the present invention includes real-time weather information; the energy demand acquisition module can be specifically used to acquire the current total energy demand N of the outdoor unit for the wind and snow signal according to the real-time weather information, The preset conditions include that the real-time weather information is a wind and snow signal.

The temperature acquisition module can be specifically used to acquire the real-time ambient temperature T where the outdoor unit of the present invention is located, and the environmental information of the present invention includes the real-time ambient temperature T; The step of obtaining real-time weather information from the cloud is performed continuously within t1 less than or equal to the preset temperature value T1, and the preset condition may further include that the real-time ambient temperature T is continuously less than or equal to the preset temperature value T1 within the first set time period t1 .

The fan start module can be used to control the fan start of the outdoor unit of the air conditioner according to the total energy demand N to zero, so as to clear the snow stored on the fan blades of the fan. The fan start module can be used to control the fan start of the outdoor unit of the air conditioner according to the preset speed A.

Specifically, the snow prevention control device for the outdoor unit of the air conditioner provided by the present invention can further include a cleaning reminder module. The cleaning reminder module can be specifically configured to control the air conditioner to continuously or intermittently send reminders to the user within the second preset time period C2 according to the total energy demand N continuously being zero in the second preset time period t2. More specifically, the cleaning reminder module can be used to control the operation of the buzzer of the outdoor unit of the air conditioner, and/or to control the cloud to send a reminder message to the user terminal.

The fan control module can be used to control the fan to run at a preset rotational speed A for at least a first preset duration C1.

The current detection module can be used to detect the real-time current B of the running fan.

The result judgment module can be used to control the fan to stop or control the fan control module to continue to control the fan to run at the preset rotational speed A for at least the first preset duration C1 according to the range of the real-time current B. More specifically, the result judging module is used to read the standard current B1 after the fan of the outdoor unit runs at the preset speed A for the first preset duration C1 in the commissioning phase, and is used to read the standard current B1 between the standard current B1 and the real-time current B. The deviation is less than or equal to the set value b% to control the fan to stop.

The deviation between the standard current B1 and the real-time current B involved in the embodiment of the present invention is: the ratio of the absolute value of the difference between the standard current B1 and the real-time current B to the standard current B1.

The result judging module in still some embodiments of the present invention can also be used to control the fan to stop according to the running duration of the fan of the outdoor unit after the current startup reaches the third preset duration C3.

One or more embodiments of the present invention can provide an air conditioner, and the air conditioner may include, but is not limited to, the control device for preventing snow of an outdoor unit of an air conditioner in any embodiment of the present invention. It should be understood that the relevant components for realizing the basic functions of the air conditioner can be selected according to requirements, which will not be described in detail in the present invention.

Still other embodiments of the present invention can provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by one or more processors, it can implement the steps of the snow prevention control method for an outdoor unit of an air conditioner in any embodiment of the present invention.

Logic and/or steps represented in flowcharts or otherwise described herein, for example, may be considered an ordered listing of executable instructions for implementing the logical functions, and may be embodied in any computer-readable storage medium , for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device), or in conjunction with these instruction execution systems, device or equipment. For the purposes of this specification, a "computer-readable storage medium" can be any device that can contain, store, communicate, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or apparatus . More specific examples (non-exhaustive list) of computer readable storage media include the following: electrical connections with one or more wiring (electronic devices), portable computer disk cartridges (magnetic devices), random access memory (RAM, Random Access Memory), Read-Only Memory (ROM, Read-Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read-Only Memory, or Flash Memory), Optical Devices, and Portable Optical Disc Read-Only Memory (CDROM, Compact Disc Read-Only Memory). In addition, the computer-readable storage medium may even be paper or other suitable medium on which the program can be printed, as the paper or other medium may be optically scanned, for example, and then edited, interpreted or, if necessary, otherwise Process in a suitable manner to obtain the program electronically and then store it in computer memory.

It should be understood that various parts of the present invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following techniques known in the art: Discrete logic circuits, application-specific integrated circuits with suitable combinational logic gate circuits, Programmable Gate Array (PGA, Programmable Gate Array), Field Programmable Gate Array (FPGA, Field Programmable Gate Array), etc.

In the description of this specification, reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples" or the like is meant to be combined with the description of the embodiment A particular feature, structure, material or characteristic described or exemplified is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., and "plurality" means at least two, such as two, three, etc., unless otherwise expressly specified limited.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear, Left, Right, Vertical, Horizontal, Top, Bottom, Inner, Outer, Clockwise, Counterclockwise, Axial, The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated devices or elements. It must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Under the conception of the present invention, the equivalent structural transformations made by the contents of the description and accompanying drawings of the present invention, or directly/indirectly applied in Other related technical fields are included within the scope of patent protection of the present invention.

Claims (10)

1. A control method for preventing snow from an outdoor unit of an air conditioner, characterized in that, comprising: Obtaining the current total energy demand of the outdoor unit of the air conditioner according to the information about the environment where the outdoor unit of the air conditioner is located and satisfying a preset condition; According to the total energy demand being zero, the fan of the outdoor unit of the air conditioner is controlled to start, so as to clear the snow stored on the fan blades of the fan; controlling the fan to run at a preset rotational speed for at least a first preset duration; Detecting the real-time current of the running fan; Controlling the fan to stop or returning to the step of controlling the fan to run at a preset rotational speed for at least a first preset duration according to the range of the real-time current. 2 . The method for controlling snow prevention of an air conditioner outdoor unit according to claim 1 , wherein the obtaining the current total energy of the air conditioner outdoor unit according to the environmental information where the air conditioner outdoor unit is located satisfies a preset condition includes: 2 . Get real-time weather information from the cloud; The current total energy demand of the outdoor unit is acquired for the wind and snow signal according to the real-time weather information. 3. The method for controlling snow prevention of an air conditioner outdoor unit according to claim 2, wherein the obtaining the current total energy demand of the air conditioner outdoor unit according to environmental information where the air conditioner outdoor unit is located satisfies a preset condition further comprises: obtaining the real-time ambient temperature where the outdoor unit is located; The step of acquiring the real-time weather information from the cloud is performed according to the fact that the real-time ambient temperature is continuously less than or equal to the preset temperature value within the first set time period. 4 . The method for controlling snow prevention of an outdoor unit of an air conditioner according to claim 1 , wherein, according to the total energy demand being zero, controlling the start of the fan of the outdoor unit of the air conditioner comprises: 5 . Controlling the air conditioner to continuously or intermittently issue a reminder to the user within a second preset time period according to the total energy demand remaining zero in the second preset time period; The fan of the outdoor unit of the air conditioner is controlled to start according to the preset rotational speed. 5. The method for controlling snow prevention of an outdoor unit of an air conditioner according to claim 4, wherein the sending a reminder to the user comprises: Control the operation of the buzzer of the outdoor unit of the air conditioner and/or control the cloud to send prompt information to the user terminal. 6 . The method for controlling snow prevention of an outdoor unit of an air conditioner according to claim 1 , wherein, according to the range of the real-time current, controlling the fan to stop comprises: 6 . reading the standard current of the fan of the outdoor unit after the fan of the outdoor unit runs at a preset speed for the first preset period of time in the commissioning phase; The fan is controlled to stop according to the deviation between the standard current and the real-time current being less than or equal to a set value. 7 . The method for controlling snow prevention of an outdoor unit of an air conditioner according to claim 6 , wherein the deviation between the standard current and the real-time current is: the absolute value of the difference between the standard current and the real-time current. 8 . value and the ratio of the standard current. 8 . The method for controlling snow prevention of an outdoor unit of an air conditioner according to claim 1 , further comprising: controlling the fan to stop according to the duration of the operation of the fan of the outdoor unit after the current startup reaches a third preset duration. 9 . . 9. A control device for preventing snow of an outdoor unit of an air conditioner, comprising: an energy demand obtaining module, configured to obtain the current total energy demand of the air conditioner outdoor unit according to the environmental information where the air conditioner outdoor unit is located and satisfying a preset condition; a fan start module, configured to control the start of the fan of the outdoor unit of the air conditioner according to the zero total energy demand, so as to clear the snow stored on the fan blades of the fan; a fan control module, configured to control the fan to run at a preset rotational speed for at least a first preset duration; a current detection module for detecting the real-time current of the running fan; The result judgment module is configured to control the fan to stop or control the fan control module to continue to control the fan to run at a preset rotational speed for at least a first preset duration according to the range of the real-time current. 10. An air conditioner, characterized in that the air conditioner comprises the control device for preventing snow of an outdoor unit of an air conditioner according to claim 9.

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