Air conditioning apparatus and monitoring method for a filter thereof

Abstract

The application belongs to the technical field of air conditioning equipment, and specifically provides an air conditioning equipment and a monitoring method of a filter screen thereof. The monitoring method comprises the following steps: in response to the start of operation of a fan of the air conditioning equipment, obtaining a standard remaining use time of the filter screen; obtaining a current air quality parameter of an environment in which the filter screen is located; determining a current remaining use time of the filter screen according to the current air quality parameter and the standard remaining use time; and in response to the current remaining use time being less than a preset time, issuing a prompt information and / or reducing the rotating speed of the fan. The air conditioning equipment can monitor and update the current remaining use time of the filter screen in real time, and timely remind the user to replace / clean the filter screen.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioning equipment, and specifically provides an air conditioning equipment and a monitoring method for a filter screen thereof. BACKGROUND

[0002] Existing air conditioning equipment generally includes a fresh air fan, a ceiling-mounted air conditioner and a cabinet air conditioner for cooling / heating. Among them, the ceiling-mounted air conditioner and the cabinet air conditioner generally refer to air conditioners with a hanging or standing indoor unit. No matter what form of air conditioning equipment is configured with a filter screen to filter air. In order to ensure the normal use of the air conditioning equipment and to ensure the health of the user, the filter screen of the air conditioning equipment generally needs to be replaced regularly.

[0003] Some air conditioning equipment on the market currently reminds the user to replace or clean the filter screen regularly (for example, 1 year, 6 months, 7 months, etc.). However, since the content of PM2.5 in the air is not the same in different regions and different seasons, the pollution of the filter screen is also different. It often leads to the air conditioning equipment reminding the user when the filter screen has not reached the actual replacement / cleaning cycle. And leads to the air conditioning equipment not reminding the user when the filter screen has reached the actual replacement / cleaning cycle, affecting the health of the user.

[0004] Therefore, there is an urgent need for an air conditioning equipment that can update the replacement / cleaning time of the filter screen in real time according to the air quality. SUMMARY

[0005] One object of the present application is to provide an air conditioning equipment and a monitoring method thereof for monitoring the current remaining use time of a filter screen in real time.

[0006] Another object of the present application is to solve the problem that the existing air conditioning equipment cannot remind the user to replace the filter screen on time.

[0007] To achieve the above object, the present application provides, in a first aspect, a monitoring method for a filter screen of an air conditioning equipment, comprising:

[0008] In response to the fan of the air conditioning equipment starting to operate, obtaining a standard remaining use time of the filter screen;

[0009] Obtaining a current air quality parameter of an environment in which the filter screen is located;

[0010] Determining a current remaining use time of the filter screen according to the current air quality parameter and the standard remaining use time.

[0011] Optionally, the determining of the current remaining use time of the filter screen according to the current air quality parameter and the standard remaining use time comprises:

[0012] Determining a time correction coefficient according to the current air quality parameter;

[0013] The current remaining use time is calculated according to the time correction coefficient and the standard remaining use time.

[0014] Optionally, the determining of the time correction coefficient according to the current air quality parameter comprises:

[0015] determining a position of the current air quality parameter from a preset air quality-time correction coefficient table;

[0016] acquiring the time correction coefficient corresponding to the current air quality parameter from the preset air quality-time correction coefficient table.

[0017] Optionally, the calculating of the current remaining use time according to the time correction coefficient and the standard remaining use time comprises:

[0018] T i ÷k=T j

[0019] wherein T i is the standard remaining use time, k is the time correction coefficient, and T j is the current remaining use time.

[0020] Optionally, the calculating of the current remaining use time according to the time correction coefficient and the standard remaining use time further comprises:

[0021]

[0022] wherein r0 is a reference rotating speed of the fan, and r i is a current rotating speed of the fan.

[0023] Optionally, the filter screen is configured to filter air in a room.

[0024] The acquiring of the current air quality parameter of the environment where the filter screen is located comprises:

[0025] acquiring an outdoor air quality parameter through the Internet and determining the current air quality parameter according to the outdoor air quality parameter.

[0026] Optionally, the outdoor air quality parameter comprises a current first air quality parameter P1 and a second air quality parameter P2 before a preset time period, and the current air quality parameter P i is determined by the following formula:

[0027]

[0028] P0 is a set value of the difference between the indoor and outdoor air quality parameters.

[0029] Optionally, the monitoring method further comprises:

[0030] In response to the current remaining use time being less than the preset time, an alert message is sent, and / or the rotation speed of the fan is reduced.

[0031] The present application provides, in a second aspect, an air conditioning device comprising:

[0032] A filter screen for filtering air;

[0033] A fan for driving air to flow through the filter screen;

[0034] A controller;

[0035] A memory having stored thereon execution instructions arranged to enable the air conditioning device to perform the monitoring method of any one of the first aspect when executed by the controller.

[0036] Optionally, the air conditioning device is a fresh air fan or an air conditioner indoor unit.

[0037] Based on the foregoing description, those skilled in the art can understand that, in the foregoing technical solutions of the present application, when the fan of the air conditioning device starts to operate, the standard remaining use time of the filter screen is obtained, the current air quality parameter of the environment in which the filter screen is located is obtained, and then the current remaining use time of the filter screen is determined according to the current air quality parameter and the standard remaining use time; so that the air conditioning device can monitor and update the current remaining use time of the filter screen in real time, and timely remind the user to replace / clean the filter screen.

[0038] Further, when the current remaining use time is less than the preset time, the user is reminded to replace / clean the filter screen by sending an alert message, and the use time of the filter screen is extended by reducing the rotation speed of the fan.

[0039] Further, when the filter screen filters indoor air, the outdoor air quality parameter is obtained through the Internet, and the current air quality parameter is determined according to the outdoor air quality parameter, so that the air conditioning device without an indoor air detection function and not connected to an indoor air detection instrument can also monitor and update the current remaining use time of the filter screen in real time, and timely remind the user to replace / clean the filter screen.

[0040] Other benefits of the present application will be described in detail hereinafter with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the improvement purposes, features and advantages of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the present application, hereinafter, some embodiments of the present application will be described with reference to the accompanying drawings. It should be understood by those skilled in the art that the components or parts indicated by the same reference signs in different drawings are the same or similar; the drawings of the present application are not necessarily drawn according to scale.

[0042] In the drawings:

[0043] Figure 1 is a structural schematic diagram of a new air fan according to the application purpose of the present application;

[0044] Figure 2 is a structural schematic diagram of an air conditioner indoor unit according to the application purpose of the present application;

[0045] Figure 3 is a main step flow chart of the monitoring method of the filter screen of the air conditioner device in some embodiments of the present application;

[0046] Figure 4 is a step flow chart of determining the current remaining use time of the filter screen in some embodiments of the present application;

[0047] Figure 5 is a step flow chart of determining the time correction coefficient in some embodiments of the present application;

[0048] Figure 6 is an air quality-time correction coefficient table provided by the present application;

[0049] Figure 7 is a block diagram of some functional components of the air conditioner device in some embodiments of the present application. DETAILED DESCRIPTION

[0050] It should be understood by those skilled in the art that the embodiments described hereinafter are only some embodiments of the present application, but not all embodiments of the present application, and the some embodiments are intended to explain the technical principles of the present application, but not to limit the protection scope of the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those skilled in the art without creative labor should fall within the protection scope of the present application.

[0051] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] Further, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In addition, it should be noted that in the description of the present application, the terms "cold" and "heat" are two descriptions of the same physical state. That is, the higher the "cold" of a certain target (such as an evaporator, air, a condenser, etc.), the lower the "heat" it has, and the lower the "cold" it has, the higher the "heat" it has. A certain target absorbs "cold" while releasing "heat", and releases "cold" while absorbing "heat". A certain target saves "cold" or "heat" to keep the target at its current temperature. "Refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, that is, a certain target (such as an evaporator) absorbs heat while refrigerating.

[0054] Finally, it should be noted that in the description of the present application, each functional module can be a physical module composed of multiple structures, components or electronic components, or a virtual module composed of multiple programs; each functional module can be a module that exists independently of each other, or a module that is divided by a whole module according to function. Those skilled in the art should understand that as long as the technical solutions described in the present application can be realized, the constituting manner, implementation manner and positional relationship of each functional module can be changed in any way without deviating from the technical principles of the present application, and therefore should fall within the protection scope of the present application.

[0055] In the present application, the air conditioning equipment can be any equipment with air conditioning (air conditioning) function, such as fresh air conditioner and air conditioner indoor unit. First, the air conditioning equipment of the present application will be described below with reference to Figure 1 and Figure 2 . Among them,Figure 1 is a structural diagram of a fresh air fan according to the application purpose of the present application, Figure 2 is a structural diagram of an air conditioner indoor unit according to the application purpose of the present application.

[0056] As Figure 1 shown, when the air conditioning equipment 100 is the fresh air fan 120, it includes the casing 110, the fan 120 and the filter screen 130. Among them, the casing 110 is defined with an air inlet channel (not marked in the figure) and an air outlet channel (not marked in the figure), and the casing 110 is also provided with an outdoor air inlet 111, an outdoor air outlet 112, an indoor air inlet 113 and an indoor air outlet 114. Among them, the outdoor air inlet 111 and the indoor air outlet 114 are respectively communicated with the air inlet channel to introduce the outdoor air into the indoor. The outdoor air outlet 112 and the indoor air inlet 113 are respectively communicated with the air outlet channel to introduce the indoor air to the outdoor.

[0057] Further, the fan 120 is used to drive the air to flow from the outdoor to the indoor, and from the indoor to the outdoor. For this purpose, the fan 120 can be one, or can be multiple. For example Figure 1 as shown in the figure, the fan 120 is one, and is arranged in the air inlet channel. In addition, the person skilled in the art can also arrange the one fan 120 in the air outlet channel according to the needs, or arrange one fan 120 in the air inlet channel and the air outlet channel respectively.

[0058] Continuing to refer to Figure 1 , the filter screen 130 is used to filter the air, especially to filter the air entering from the outdoor to the indoor.

[0059] Further, when the air conditioning equipment 100 is the fresh air fan 120, it also includes an air detector 140, which is used to detect the air quality on the windward side of the filter screen 130 or the outdoor.

[0060] As Figure 2 shown, when the air conditioning equipment 100 is the air conditioner indoor unit, it includes the casing 110, the fan 120, the filter screen 130, the heat exchanger 150 and the air deflector 160. Among them, the casing 110 is provided with the indoor air inlet 113 and the indoor air outlet 114, so that the air outside the casing 110 enters the casing 110 from the air inlet, and the air inside the casing 110 flows out of the casing 110 from the air outlet.

[0061] Continuing to refer to Figure 2 , the heat exchanger 150 is arranged inside the casing 110, and is used to heat or cool the air inside the casing 110. When the air conditioner indoor unit is cooling, the heat exchanger 150 is used as an evaporator to cool the air inside the casing 110. When the air conditioner indoor unit is heating, the heat exchanger 150 is used as a condenser to heat the air inside the casing 110.

[0062] Continue reading Figure 2 The fan 120 is installed inside the housing 110 and is used to drive the air outside the housing 110 into the housing 110 through the indoor air inlet 113 and drive the air inside the housing 110 to flow out of the housing 110 through the indoor air outlet 114.

[0063] Continue reading Figure 2 The air guide plate 160 is installed at the indoor air outlet 114 on the housing 110 to guide the direction of the air blown out from the housing 110.

[0064] like Figure 2 As shown, when the air conditioning unit 100 is an indoor unit, it also includes an air detector 140, which is used to detect the air quality inside the filter 130. The air detector 140 can be installed on the front, left or right side of the housing 110, or at the indoor air inlet 113 or the indoor air outlet 114.

[0065] The following describes the method for monitoring the filter of the air conditioning equipment in this invention, with reference to the air conditioning equipment 100 described above.

[0066] like Figure 3 As shown, in some embodiments of the present invention, the method for monitoring the filter 130 of the air conditioning device 100 includes:

[0067] In step S100, in response to the start of operation of the fan 120 of the air conditioning unit 100, the standard remaining usage time of the filter 130 is obtained.

[0068] Specifically, the standard remaining usage time of the filter 130 is obtained from the storage device of the air conditioning equipment 100 as soon as the fan 120 starts to rotate.

[0069] The standard remaining usage time is when the air quality is excellent (e.g., ...). Figure 6 As shown, the fan 120 runs continuously, and the filter 130 has its remaining usage time.

[0070] Furthermore, the standard remaining usage time is the remaining usage time of the filter 130 when the air quality is excellent and the fan 120 is running continuously at a reference speed (which will be explained in detail later).

[0071] In this invention, the air conditioning device 100 updates and stores the standard remaining usage time every time the fan 120 stops rotating.

[0072] Step S200: Obtain the current air quality parameters of the environment where the filter 130 is located.

[0073] Example 1, such as Figure 1 andFigure 2 As shown, the air conditioning unit 100 is equipped with an air detector 140. In this case, the air conditioning unit 100 uses the air detector 140 to detect and obtain the current air quality parameters of the environment where the filter 130 is located.

[0074] Example 2: If the air conditioner 100 is not equipped with an air detector 140, then a wireless communication module 170 should be configured for the air conditioner 100 (e.g., ...). Figure 7 As shown), the air conditioning unit 100 connects to the Internet via the wireless communication module 170, thereby obtaining outdoor air quality parameters through the Internet and determining the current air quality parameters based on the outdoor air quality parameters.

[0075] Furthermore, in Example 2, filter 130, as... Figure 2 The indoor unit of the central air conditioner is configured to filter indoor air, and the filter 130 does not come into contact with outdoor air. At this time, the outdoor air quality parameters include the current first air quality parameter P1 and a second air quality parameter P2 prior to a preset time period (e.g., any feasible time period such as 1 hour, 3 hours, 5 hours, etc.). The current air quality parameter P1... i Determined by the following formula:

[0076]

[0077] Wherein, P0 is the set value of the difference between indoor and outdoor air quality parameters, which can be any feasible value, such as 35, 50, 60, 70, etc.

[0078] Those skilled in the art will understand that by acquiring outdoor air quality parameters twice before and after a preset time period, and calculating the current indoor air quality parameters using the above formula, the current indoor air quality parameters can be appropriately adjusted according to changes in outdoor air quality (improving, worsening, significant changes, minor changes, etc.), resulting in more accurate values. This avoids the situation where rapid changes in outdoor air quality cause the difference between indoor and outdoor air quality to increase or decrease, affecting the accuracy of the current indoor air quality parameters.

[0079] Step S300: Determine the current remaining usage time of filter 130 based on the current air quality parameters and the standard remaining usage time.

[0080] Specifically, such as Figure 4 As shown, step S300 includes:

[0081] Step S310: Determine the time correction factor based on the current air quality parameters.

[0082] like Figure 5 As shown, step S310 further includes:

[0083] Step S311, determine the position of the current air quality parameter from the preset air quality-time correction factor table (as shown in Table 1). Figure 6

[0084] For example, if the current air quality parameter is 40, the position of the current air quality parameter is the "good" column; if the current air quality parameter is 80, the position of the current air quality parameter is the "light pollution" column; if the current air quality parameter is 150, the position of the current air quality parameter is the "moderate pollution" column.

[0085] Step S312, obtain the time correction factor corresponding to the current air quality parameter from the preset air quality-time correction factor table (as shown in Table 1). Figure 6

[0086] For example, if the current air quality parameter is 40, the corresponding time correction factor is 1.10 in the "good" column; if the current air quality parameter is 80, the corresponding time correction factor is 1.20 in the "light pollution" column; if the current air quality parameter is 150, the corresponding time correction factor is 1.30 in the "moderate pollution" column.

[0087] Step S320, calculate the current remaining use time according to the time correction factor and the standard remaining use time. Specifically, it can be determined by the following formula:

[0088] T i ÷k=T j

[0089] Where T i is the standard remaining use time, k is the time correction factor, and T j is the current remaining use time.

[0090] Further, since the speed of the fan 120 also affects the remaining use time of the filter screen 130, step S320 further includes:

[0091]

[0092] Where r0 is the reference speed of the fan 120, which can be the minimum speed of the fan 120, the most commonly used speed of the fan 120, or any other feasible speed. r i is the current speed of the fan 120.

[0093] Step S400, in response to the current remaining use time being less than the preset time, issuing a reminder information, and / or reducing the speed of the fan 120.

[0094] ​​The preset time can be any feasible time, for example, 10 minutes, 50 minutes, 1 hour, 3 hours, 8 hours, etc.

[0095] Specifically, when the current remaining use time of the filter screen 130 is less than the preset time, the air conditioning device 100 sends a reminder information to remind the user to replace or clean the filter screen 130.

[0096] The reminder information can be sent by the air conditioning device 100 directly, or sent by the air conditioning device 100 to a terminal device such as a mobile phone or a tablet through the wireless communication module 170 (as shown in the figure), and then sent by the terminal device. The reminder information can be a sound information or a text information. Figure 7

[0097] Further, when the air conditioning device 100 sends the reminder information, the current rotating speed of the fan 120 is determined. If the current rotating speed is high, the rotating speed of the fan 120 is reduced to prolong the current remaining use time of the filter screen 130.

[0098] Based on the foregoing description, those skilled in the art can understand that the air conditioning device 100 of the present application can monitor and update the current remaining use time of the filter screen 130 in real time through the above steps, and timely remind the user to replace / clean the filter screen 130.

[0099] Further, when the current remaining use time is less than the preset time, the use time of the filter screen 130 is prolonged by reducing the rotating speed of the fan 120.

[0100] Further, when the filter screen 130 filters indoor air, the outdoor air quality parameter is obtained through the Internet, and the current air quality parameter is determined according to the outdoor air quality parameter, so that the air conditioning device 100 without indoor air detection function and not connected to the indoor air detection instrument can also monitor and update the current remaining use time of the filter screen 130 in real time, and timely remind the user to replace / clean the filter screen 130.

[0101] As shown in the figure, Figure 7 In some embodiments of the present application, the air conditioning device 100 includes at least one of the air detector 140 and the wireless communication module 170 in addition to the fan 120 described above, and includes the controller 181 and the memory 182. The memory 182 is used to store an execution instruction, which is specifically a computer program that can be executed. Further, the execution instruction stored by the memory 182 is set to enable the air conditioning device 100 to perform the monitoring method described in any of the embodiments above when executed by the controller 181.

[0102] ​In the present embodiment, the memory 182 can include a memory and a non-volatile memory, and provide the controller 181 with execution instructions and data. Exemplarily, the memory can be a high-speed random-access memory (RAM), and the non-volatile memory can be at least one disk memory.

[0103] In the present embodiment, the controller 181 is an integrated circuit chip with the ability to process signals. The controller 181 can be a general-purpose processor, such as a central processing unit (CPU), a network processor (NP), a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a microprocessor, and any other conventional processor.

[0104] So far, the technical solutions of the present application have been described in combination with the foregoing embodiments, but those skilled in the art can easily understand that the protection scope of the present application is not limited to these specific embodiments. Those skilled in the art can split and combine the technical solutions in the above-described embodiments, or make equivalent changes or replacements to the related technical features, without departing from the technical principles of the present application. Any changes, equivalent replacements, improvements, etc. made within the technical concept and / or technical principles of the present application shall fall within the protection scope of the present application.

Claims

1.A method for monitoring a filter screen of an air conditioner, the filter screen being configured to filter air in a room, the method comprising: obtaining a standard remaining service time of the filter screen in response to a fan of the air conditioner starting to operate; obtaining a current air quality parameter of an environment in which the filter screen is located, including: obtaining an outdoor air quality parameter through the Internet, and determining the current air quality parameter according to the outdoor air quality parameter; determining a time correction coefficient according to the current air quality parameter; calculating a current remaining service time according to the time correction coefficient and the standard remaining service time; and wherein P0 is a set value of a difference between indoor and outdoor air quality parameters. 2.The method of claim 1, wherein: the determining the time correction coefficient according to the current air quality parameter comprises: determining a position of the current air quality parameter from a preset air quality-time correction coefficient table; and obtaining the time correction coefficient corresponding to the current air quality parameter from the preset air quality-time correction coefficient table. 3.The method of claim 1, wherein: the calculating the current remaining service time according to the time correction coefficient and the standard remaining service time comprises: T = T0×P / P0. 4.The method of claim 1, wherein: the calculating the current remaining service time according to the time correction coefficient and the standard remaining service time further comprises: T = T0×P / P0×T0 / T1. 5.The method of any one of claims 1 to 4, wherein: the method further comprises: issuing a reminder in response to the current remaining service time being less than a preset time, and / or reducing a rotation speed of the fan. The outdoor air quality parameter includes a current first air quality parameter P1 and a second air quality parameter P2 before a preset time period, and the current air quality parameter P i The current air quality parameter is determined by the following formula, so that the current air quality parameter is properly adjusted according to the change of outdoor air quality: 6.An air conditioner comprising: a filter screen configured to filter air; a fan configured to drive air to flow through the filter screen; a controller; and a memory having stored thereon execution instructions configured to, when executed by the controller, enable the air conditioner to perform the method of any one of claims 1 to 5. 7.The air conditioner of claim 6, wherein: the air conditioner is a fresh air fan or an air conditioner indoor unit. ​ ​ ​ ​ ​ T i ÷k=T j where T i is the standard remaining usage time, k is a time correction coefficient, and T j is the current remaining usage time. ​ ​ wherein r0 is a reference rotational speed of the fan, and r i is a current rotational speed of the fan. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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