Control method and control device for air conditioner and air conditioner

Abstract

The invention relates to the technical field of household appliances, and discloses a control method for an air conditioner, and the air conditioner comprises an air conditioner body which comprises an air supply system used for supplying air into a room; the air supply pipeline comprises an air inlet communicated with the air supply system and an air outlet communicated with the indoor space; the gas flow rate sensor is used for acquiring the tail end air speed V0 of the air supply pipeline; the control method comprises the steps of controlling the fan to supply air; the tail end air speed V0 of the air supply pipeline is obtained; controlling the rotating speed of the fan according to preset conditions; wherein the preset condition comprises the tail end wind speed V0. Therefore, when the air conditioner is started, the air supply system can supply air into a room through the air supply pipeline. Through the arrangement, the air speed of the air supply system can be more accurately adjusted, the energy-saving capacity and comfort of the air conditioner are further improved, and the use experience of a user is improved. Meanwhile, the invention further discloses a control device for the air conditioner and the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to a control method and a control device for an air conditioner, and an air conditioner. Background Art

[0002] With the development of society, people's living standards have gradually improved, and central air conditioners have gradually entered ordinary families. Central air conditioners are generally ducted. Ducted central air conditioners are installed in the ceiling and connected to the room through air supply ducts to supply air to the room. However, the air supply ducts of central air conditioners are generally more, and are generally concealed in the wall. This results in the air supply ducts of central air conditioners being generally longer. Therefore, when traditional central air conditioners use step-by-step control of the fan, they cannot track the changes in the terminal's compliance with demand in real time, have limited energy-saving capabilities, and have poor comfort.

[0003] In the related technology, in order to solve the above problems, the existing central air conditioner will also install a wind pressure sensor in the air supply pipeline and control the fan speed according to the air supply pressure. In this way, the central air conditioner can judge the overall required air volume of the central air conditioner according to the air pressure in the air supply pipeline, which improves the energy saving ability and comfort to a certain extent.

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

[0005] In the related art, the existing central air conditioner that controls the fan speed by the air pressure in the air supply duct generally obtains the static pressure value in the air supply duct through a static pressure sensor, and controls the fan speed according to the static pressure value. Since the static pressure value cannot accurately reflect the change of air volume, the existing central air conditioner cannot accurately control the wind speed, which leads to a poor user experience.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The disclosed embodiments provide a control method and control device for an air conditioner, and an air conditioner, which can detect the air flow rate at the end of the air supply pipeline, and control the air supply wind speed of the air supply system according to the air flow rate at the end of the air supply pipeline. In this way, the wind speed of the air supply system can be more accurately determined, further improving the energy saving capability and comfort of the air conditioner, and improving the user experience.

[0009] The disclosed embodiment provides a control method for an air conditioner, the air conditioner comprising: the air conditioner body comprising an air supply system for supplying air to the indoor room; the air supply duct comprising an air inlet connected to the air supply system and an air outlet connected to the indoor room; a gas flow rate sensor is used to obtain the terminal wind speed V0 of the air supply duct; the control method comprises: controlling the air supply of the fan; obtaining the terminal wind speed V0 of the air supply duct; controlling the fan speed according to preset conditions; wherein the preset conditions include the terminal wind speed V0.

[0010] In some embodiments, obtaining the terminal wind speed V0 of the air supply duct includes: periodically obtaining the terminal wind speed V0 of the air supply duct; after periodically obtaining the terminal wind speed V0 of the air supply duct, the control method also includes: calculating the wind speed difference △V between the first terminal wind speed V1 of the current cycle and the second terminal wind speed V2 of the previous cycle; wherein, the preset condition also includes the wind speed difference △V.

[0011] In some embodiments, the air conditioner also includes: a first temperature sensor for obtaining the ambient temperature Tn; and, a second temperature sensor for obtaining the supply air temperature T0; after obtaining the terminal wind speed V0 of the supply air duct, the control method also includes: obtaining the ambient temperature Tn and the supply air temperature T0; calculating the Archimedes number Ar according to the terminal wind speed V0, the ambient temperature Tn and the supply air temperature T0; calculating the axial temperature difference △Tx at the jet point X according to the Archimedes number Ar; wherein the preset condition also includes the axial temperature difference △Tx.

[0012] The embodiment of the present disclosure further provides a control device for an air conditioner, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute the above-mentioned control method for the air conditioner when running the program instructions.

[0013] The disclosed embodiment also provides an air conditioner, comprising: an air conditioner body, an air supply pipeline, a gas flow rate sensor and the above-mentioned control device for the air conditioner. The air conditioner body comprises an air supply system for supplying air to the room; the air supply pipeline comprises an air inlet connected to the air supply system and an air outlet connected to the room; the gas flow rate sensor is arranged on the air supply pipeline, and the gas flow rate sensor is used to obtain the wind speed at the corresponding position of the air supply pipeline; wherein at least one gas flow rate sensor is arranged on the side of the air supply pipeline close to the air outlet to obtain the terminal wind speed V0 of the air supply pipeline.

[0014] In some embodiments, the air conditioner further includes: a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged on the end surface of the air supply duct facing the room, and is used to obtain the indoor ambient temperature Tn; the second temperature sensor is arranged on the side of the air supply duct close to the air outlet, and is used to obtain the air supply temperature T0.

[0015] In some embodiments, the air supply pipeline includes multiple air supply pipe sections, and each of the multiple air supply pipe sections is provided with at least one gas flow rate sensor; wherein the control device is electrically connected to the multiple gas flow rate sensors respectively to respectively obtain the wind speeds at corresponding positions of the multiple air supply pipe sections.

[0016] In some embodiments, the air supply duct is detachably connected to the air conditioner body; and multiple air supply duct sections are detachably connected to each other.

[0017] In some embodiments, the air supply pipe is snap-connected to the air conditioner body; and multiple air supply pipe sections are snap-connected.

[0018] In some embodiments, at least one gas flow rate sensor is provided at the air outlet of the air supply pipeline; the air conditioner further comprises: a damper assembly. The damper assembly is provided at the air outlet and is used to control the dredging and blocking of the air outlet; wherein the control device is electrically connected to the damper assembly; when the damper dredges the air outlet, the control device can control the opening of the damper according to the air flow rate at the air outlet.

[0019] The control method and control device for an air conditioner and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The disclosed embodiment provides a control method for an air conditioner, the air conditioner comprising: the air conditioner body comprises an air supply system for supplying air to the room; the air supply pipeline comprises an air inlet connected to the air supply system and an air outlet connected to the room; the gas flow rate sensor is used to obtain the terminal wind speed V0 of the air supply pipeline; the control method comprises: controlling the fan to supply air; obtaining the terminal wind speed V0 of the air supply pipeline; controlling the fan speed according to preset conditions; wherein the preset conditions include the terminal wind speed V0. In this way, when the air conditioner is turned on, the air supply system can supply air to the room through the air supply pipeline. At this time, the gas flow rate sensor can obtain the terminal wind speed V0 of the position of the air supply pipeline near the air outlet in real time, and control the fan speed in real time according to the terminal wind speed V0 to adjust the wind speed of the air outlet of the air supply pipeline. In this way, the wind speed of the air supply system can be more accurately measured, further improving the energy-saving ability and comfort of the air conditioner, and improving the user experience.

[0021] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0023] Figure 1is a structural schematic diagram of an air conditioner provided by an embodiment of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of another air conditioner provided by an embodiment of the present disclosure;

[0025] Figure 3 is a structural schematic diagram of another air conditioner provided by an embodiment of the present disclosure;

[0026] Figure 4 is a partial structural schematic diagram of an air conditioner provided by an embodiment of the present disclosure;

[0027] Figure 5 is a structural schematic diagram of another air conditioner provided by an embodiment of the present disclosure;

[0028] Figure 6 is a partial structural schematic diagram of another air conditioner provided by an embodiment of the present disclosure;

[0029] Figure 7 is a schematic diagram of a control method for an air conditioner provided by an embodiment of the present disclosure;

[0030] Figure 8 is a schematic diagram of a control method for an air conditioner provided by an embodiment of the present disclosure;

[0031] Fig. 9 is a schematic diagram of a control method for an air conditioner provided by an embodiment of the present disclosure;

[0032] Fig.10 Schematic diagram of a control device for an air conditioner provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 11: housing; 12: fan;

[0035] 20: air supply pipeline; 21: first air supply pipe section; 22: second air supply pipe section; 23: air supply port; 24: damper assembly;

[0036] 31: gas flow rate sensor; 32: air density sensor; 33: first temperature sensor; 34: second temperature sensor;

[0037] 40: warning device; 401: processor; 402: memory; 403: bus; 404: communication interface. DETAILED DESCRIPTION

[0038] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0039] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0041] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] Unless otherwise stated, the term "plurality" means two or more.

[0043] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0044] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0046] In the prior art, the air supply system of central air conditioners is mainly controlled by fan stepping or speed change. Fan stepping control cannot track the changes in terminal load demand in real time, so its energy saving ability is limited and the comfort is poor. The controlled parameter currently used in fan speed control is the static pressure of the air supply, that is, the static pressure sensor set in the air supply pipeline is used to obtain the air static pressure at the corresponding position, and the overall required air volume of the system is determined based on the air static pressure.

[0047] However, since static pressure and air volume are not simply related, but also related to motor power and fan efficiency, etc., choosing air supply static pressure as the controlled parameter for fan speed change cannot achieve accurate control of wind speed and constant air volume, which leads to a poor user experience.

[0048] like Figures 1 to 10 As shown, the disclosed embodiment provides a control method and control device for an air conditioner, and an air conditioner, which can detect the air flow rate at the end of the air supply pipeline, and control the air supply wind speed of the air supply system according to the air flow rate at the end of the air supply pipeline. Such a setting can more accurately determine the wind speed of the air supply system, further improve the energy saving ability and comfort of the air conditioner, and improve the user experience.

[0049] like Figures 1 to 6 As shown, the embodiment of the present disclosure provides an air conditioner including: an air conditioner body, an air supply pipeline 20, a gas flow rate sensor 31 and a control device. The air conditioner body includes an air supply system for supplying air to the room; the air supply pipeline 20 includes an air inlet connected to the air supply system and an air outlet connected to the room; the gas flow rate sensor 31 is arranged on the air supply pipeline 20, and the gas flow rate sensor 31 is used to obtain the air flow rate at the corresponding position of the air supply pipeline 20; the control device is electrically connected to the air supply system and the gas flow rate sensor 31 respectively, and the control device can control the air supply wind speed of the air supply system according to the air flow rate at the corresponding position of the air supply pipeline 20; wherein, at least one gas flow rate sensor 31 is arranged on the side of the air supply pipeline 20 close to the air outlet.

[0050] Specifically, the air conditioner is a central air conditioner. The air conditioner body includes a casing 11 and an air supply system, and the air supply system is arranged in the casing 11. The casing 11 is provided with an opening and a mounting structure at a position corresponding to the air supply system. The first end of the air supply duct 20 is mounted on the mounting structure of the casing 11, and the air inlet at the first end of the air supply duct 20 is connected to the air supply system through the opening. The second end of the air supply duct 20 extends into the room, and the part of the air supply duct 20 extending into the room is provided with an air outlet, and the air outlet is connected to the room so that the air supply system supplies air to the room through the air supply duct 20. The gas flow rate sensor 31 is arranged on one side of the air supply duct 20 close to the air outlet, and is used to obtain the gas flow rate at the end of the air supply duct 20. The control device can be arranged in the casing 11, and is used to control the air supply wind speed of the air supply system.

[0051] When the air conditioner is turned on, the air supply system supplies air to the room through the air supply pipe 20 to cool or heat the room. At this time, the gas flow rate sensor 31 can obtain the actual wind speed at the end of the air supply pipe 20 in real time and transmit the actual wind speed to the control device. After obtaining the actual wind speed, the control device can compare the actual wind speed at the end of the pipe with the preset wind speed, and control the air supply speed of the air supply system according to the difference between the actual wind speed and the preset wind speed, thereby accurately controlling the wind speed blown to the room.

[0052] For example, when the actual wind speed is greater than the preset wind speed, the control device can control the air supply system to reduce the air supply speed, thereby reducing the actual wind speed blown into the room; or, when the actual wind speed is less than the preset wind speed, the control device can control the air supply system to increase the air supply speed, thereby increasing the actual wind speed blown into the room.

[0053] With such an arrangement, the air conditioner can control the air supply speed of the air supply system according to the actual wind speed at the end of the air supply duct 20, thereby accurately controlling the actual wind speed blown into the room, thereby improving the user experience.

[0054] In actual applications, when environmental conditions do not change much, users generally choose constant air volume. However, since the static pressure value cannot accurately reflect the change in air volume, the air volume blown into the room by the existing air conditioner that uses the static pressure value to control the wind speed may fluctuate greatly. The air conditioner provided by the present application can achieve the effect of maintaining a constant air volume by accurately controlling the actual wind speed blown into the room, further improving the user experience.

[0055] like Figures 1 to 3 As shown, in some embodiments, the air supply system includes a fan 12; the control device is used to obtain the rotational speed of the fan 12 and the wind speed at the corresponding position of the air supply pipeline 20; wherein, when the rotational speed of the fan 12 and the wind speed at the corresponding position of the air supply pipeline 20 meet preset conditions, the control device determines that the air supply pipeline 20 is blocked, and controls the fan 12 to increase the rotational speed.

[0056] Specifically, the fan 12 is disposed in the housing 11, and the air outlet of the fan 12 is connected to the air inlet of the air supply pipe 20, so that the fan 12 can supply air to the room through the air supply pipe 20. The control device can control the rotation speed of the fan 12, thereby controlling the air supply speed of the air supply system.

[0057] The control device can obtain the rotation speed of the fan 12 and the wind speed in the air supply duct 20 through the gas flow rate sensor 31. When the rotation speed of the fan 12 remains unchanged, if the wind speed in the air supply duct 20 decreases, it means that the resistance in the air supply duct 20 increases. At this time, the control device determines that blockage occurs in the air supply duct 20, and controls the fan 12 to increase the rotation speed to increase the air supply speed of the fan 12, thereby increasing the actual wind speed blown into the room to ensure the effect of constant wind speed.

[0058] In some embodiments, when the speed of the fan 12 and the wind speed at the corresponding position of the air supply pipeline 20 meet the preset conditions, the control device determines that the air supply pipeline 20 is blocked, including: when the speed of the fan 12 remains constant, if The control device determines that the air supply pipeline is blocked; where ρ is the initial air density, ρ′ is the actual air density, V is the initial wind speed, V ′ is the actual wind speed.

[0059] Specifically, an air density sensor 32 is further provided at a position corresponding to the gas flow rate sensor 31 in the air supply pipeline 20, and the air density sensor 32 is used to obtain the air density at the corresponding position. The control device is electrically connected to the air density sensor 32, so that the air density sensor 32 can transmit the air density information at the corresponding position to the control device. In this way, the accuracy of the air conditioner's wind speed control can be further improved.

[0060] When the speed of the fan 12 is kept constant, the control device can obtain the actual wind speed and air density through the gas flow rate sensor 31 and the air density sensor 32 respectively to determine the actual dynamic pressure. This indicates that the actual dynamic pressure is less than the initial dynamic pressure, and the control device determines that the air supply pipeline 20 is blocked.

[0061] like Figures 1 to 3 As shown, in some embodiments, the air supply duct 20 includes multiple air supply duct sections, and each of the multiple air supply duct sections is provided with at least one gas flow rate sensor 31; wherein the control device is electrically connected to the multiple gas flow rate sensors 31, respectively, to respectively obtain the wind speeds at corresponding positions of the multiple air supply duct sections.

[0062] Specifically, when the overall length of the air supply pipeline 20 is long, the air supply pipeline 20 can be divided into multiple air supply pipeline sections. Multiple air supply pipeline sections are each provided with a gas flow rate sensor 31, and the control device is respectively electrically connected to the multiple gas flow rate sensors 31. In this way, the control device can respectively obtain the wind speed of the multiple air supply pipeline sections to determine the air supply pipeline section that is blocked.

[0063] like Figure 1 and Figure 2 As shown, in some practical applications, the air supply pipeline 20 includes a first air supply pipe section 21 and a second air supply pipe section 22, and both air supply pipe sections are provided with a gas flow rate sensor 31. At this time, the control device can obtain the actual wind speed of the first air supply pipe section 21 and the second air supply pipe section 22 respectively. When the speed of the fan 12 remains unchanged, if the wind speeds of the first air supply pipe section 21 and the second air supply pipe section 22 are both reduced, and the degree of reduction of the wind speed of the second air supply pipe section 22 is the same as that of the first air supply pipe section 21, it means that the first air supply pipe section 21 is blocked; if the wind speed of the first air supply pipe section 21 is normal, but the wind speed of the second air supply pipe section 22 is reduced, it means that the second air supply pipe section 22 is blocked; if the wind speeds of the first air supply pipe section 21 and the second air supply pipe section 22 are both reduced, and the degree of reduction of the wind speed of the second air supply pipe section 22 is greater than that of the first air supply pipe section 21, it means that both the first air supply pipe section 21 and the second air supply pipe section 22 are blocked.

[0064] In some embodiments, the air supply duct 20 is detachably connected to the air conditioner body; and multiple air supply duct sections are detachably connected to each other.

[0065] Specifically, the air supply duct 20 is detachably connected to the housing 11 of the air conditioner body, so that when the air supply duct 20 is blocked, the air supply duct 20 can be removed from the housing 11, which is more convenient for the user to replace or clean the air supply duct 20. Similarly, when the air supply duct 20 includes multiple air supply duct sections, the multiple air supply duct sections are detachably connected, so that when some of the air supply duct sections are blocked, the user only needs to remove the blocked air supply duct section for replacement or cleaning.

[0066] Optionally, a sealing structure is provided at the connection between the air supply duct 20 and the housing 11. In the case where the air supply duct 20 includes a plurality of air supply duct sections, a sealing structure is also provided at the connection between the plurality of air supply duct sections.

[0067] In some embodiments, the air supply pipe 20 is snap-connected to the air conditioner body; and multiple air supply pipe sections are snap-connected.

[0068] Specifically, a slot is provided at a position corresponding to the housing 11 and the air supply duct 20, and a snap-in protrusion is provided at a position corresponding to the slot on the air supply duct 20, and the snap-in protrusion can be snap-fitted into the slot to snap-fit ​​the air supply duct 20 to the housing 11. Similarly, the adjacent air supply duct sections are correspondingly provided with slots and snap-in protrusions, and the user can snap-fit ​​the snap-in protrusion of one air supply duct section into the slot of the corresponding air supply duct section to complete the installation of multiple snap-in duct sections.

[0069] In practical applications, after the air supply duct 20 is clamped to the housing 11, the air supply duct 20 can also be fastened to the housing 11 by fasteners such as screws or bolts.

[0070] like Figures 1 to 3 As shown, in some embodiments, the air conditioner further comprises: a warning device. The warning device is electrically connected to the control device; when the control device determines that the air supply pipeline 20 is blocked, the control device triggers the warning device to remind the user that the blockage occurs.

[0071] Specifically, the warning device may be a warning device that emits a sound signal or a light signal. The warning device is disposed on the housing 11 of the air conditioner or on a wall indoors. After the control device determines that the air supply duct 20 is blocked, the control device may trigger the warning device. At this time, the warning device emits a sound signal or a light signal to remind the user that the air supply duct 20 is blocked.

[0072] Optionally, the air conditioner further comprises a display device, and the control device is electrically connected to the display device. In the case where the air supply duct 20 comprises a plurality of air supply duct sections, the display device can be used to display the position of the air supply duct section where the blockage occurs.

[0073] like Figure 3 As shown, in some embodiments, at least one gas flow rate sensor 31 is provided at the air outlet 23 of the air supply pipeline 20; the air conditioner further comprises: a damper assembly 24. The damper assembly 24 is provided at the air outlet, and is used to control the dredging and blocking of the air outlet; wherein the control device is electrically connected to the damper assembly 24; when the damper dredges the air outlet, the control device can control the opening of the damper according to the air flow rate at the air outlet 23.

[0074] Specifically, the gas flow rate sensor 31 disposed at the air outlet 23 can obtain the wind speed at the air outlet 23. When the actual wind speed at the air outlet 23 is greater than the preset wind speed, the control device can control the damper assembly 24 to reduce the opening to reduce the air volume at the air outlet 23; when the actual wind speed at the air outlet 23 is less than the preset wind speed, the control device can control the damper assembly 24 to increase the opening to increase the air volume at the air outlet 23. Such a configuration can enrich the control methods of the air conditioner.

[0075] like Figure 3As shown, in some embodiments, the air supply duct 20 is provided with a plurality of air supply outlets 23, and the plurality of air supply outlets 23 are respectively connected to the indoor space; wherein, the plurality of air supply outlets 23 are each provided with at least one gas flow rate sensor 31 and a damper assembly 24.

[0076] Specifically, the portion of the air supply duct 20 extending into the room is provided with a plurality of air supply ports 23, and the distance between two adjacent air supply ports 23 is the same. In this way, when the air conditioner is turned on, the air supply system can supply air to the room through the plurality of air supply ports 23 to increase the uniformity of the air flow into the room, further improving the user experience. At the same time, the control device can also control the opening of the corresponding damper assembly 24 according to the wind speed at the plurality of air supply ports 23.

[0077] It is understandable that when the air supply duct 20 is long and is provided with multiple air supply ports 23, the air supply volumes of the multiple air outlets may be different due to the different distances between the multiple air supply ports 23 and the air supply system. The air conditioner provided in the present application can control the air supply volumes of the multiple air outlets respectively, thereby ensuring that the air supply volume of each air supply port 23 is the same, so as to further improve the uniformity of the air flow into the room.

[0078] In some embodiments, a filter structure is provided at the air outlet 23 .

[0079] Specifically, the filter structure is detachably installed at the air outlet 23 to filter the air flowing into the room.

[0080] In practical applications, the control device can determine whether the air outlet 23 is blocked according to the wind speed at the air outlet 23. If the air outlet 23 is blocked, the control device can trigger the warning device to remind the user to replace the filter structure at the air outlet 23.

[0081] like Figure 5 and Figure 6 As shown, in some embodiments, the air conditioner further includes: a first temperature sensor 33 and a second temperature sensor 34. The first temperature sensor 33 is arranged on the end surface of the air supply pipeline facing the indoor room, and is used to obtain the indoor ambient temperature Tn; the second temperature sensor 34 is arranged on the side of the air supply pipeline close to the air outlet, and is used to obtain the air supply temperature T0.

[0082] Specifically, the first temperature sensor 33 is arranged at the end face of the air supply duct facing the room to obtain the indoor temperature. The second temperature sensor 34 is arranged at the end of the air supply duct to obtain the supply air temperature. In this way, the end wind speed of the fan can be adjusted according to the indoor temperature and the supply air temperature.

[0083] like Figure 7 As shown, the embodiment of the present disclosure also provides a control method for an air conditioner, the method comprising:

[0084] S101, the control device controls the fan to supply air.

[0085] S102, the control device controls the gas flow rate sensor to obtain the terminal wind speed V0 of the air supply pipeline.

[0086] S103, the control device controls the fan speed according to a preset adjustment.

[0087] Among them, the preset adjustment includes the terminal wind speed V0, that is, the control device can control the fan speed according to the terminal wind speed V0.

[0088] With such an arrangement, the control device can control the rotation speed of the fan according to the actual terminal wind speed V0 at the end of the air supply pipeline 20, thereby accurately controlling the actual wind speed blown into the room, thereby improving the user experience.

[0089] like Figure 8 As shown, the embodiment of the present disclosure also provides another control method for an air conditioner, the method comprising:

[0090] S201, the control device controls the fan to supply air.

[0091] S202, the control device controls the gas flow rate sensor to periodically obtain the terminal wind speed V0 of the air supply pipeline.

[0092] S203, the control device calculates the wind speed difference ΔV between the first terminal wind speed V1 of the current cycle and the second terminal wind speed V2 of the previous cycle.

[0093] S204, the control device controls the fan to supply air.

[0094] Among them, the preset adjustment also includes a wind speed difference △V, that is, the control device controls the fan speed according to the wind speed difference △V.

[0095] For example, when the first end wind speed V1 of the current cycle is greater than the second end wind speed V2 of the previous cycle, that is, the wind speed difference △V>0, the control device can control the air supply system to reduce the air supply speed, thereby reducing the actual wind speed blown into the room; or, when the first end wind speed V1 of the current cycle is less than the second end wind speed V2 of the previous cycle, that is, the wind speed difference △V<0, the control device can control the air supply system to increase the air supply speed, thereby increasing the actual wind speed blown into the room. With such a setting, a constant air supply speed can be achieved, thereby improving the user experience.

[0096] like Fig. 9 As shown, the embodiment of the present disclosure also provides another control method for an air conditioner, the method comprising:

[0097] S301, the control device controls the fan to supply air.

[0098] S302, the control device controls the gas flow rate sensor to obtain the terminal wind speed V0 of the air supply pipeline.

[0099] S303, the control device controls the first temperature sensor to obtain the ambient temperature Tn, and controls the second temperature sensor to obtain the supply air temperature T0.

[0100] S304, the control device calculates the Archimedean number Ar according to the terminal wind speed V0, the ambient temperature Tn and the supply air temperature T0.

[0101] S305, the control device calculates the axial temperature difference ΔTx at the jet point X according to the Archimedean number Ar.

[0102] S306, the control device controls the fan to supply air.

[0103] Among them, the preset adjustment also includes the axial temperature difference △Tx, that is, the control device controls the fan speed according to the axial temperature difference △Tx.

[0104] It can be understood that the Archimedes number Ar of the air conditioner is a parameter that characterizes the dimensionless ratio of buoyancy and inertia, and it is mainly used to analyze the behavior characteristics of non-isothermal jets in air conditioning systems. The Archimedes number is of great significance in the study of non-isothermal jets, especially in the airflow organization and thermal comfort evaluation of air conditioning systems.

[0105] Specifically, calculating the Archimedean number Ar includes: the control device calculates Where g is the acceleration of gravity, Tn is the ambient temperature, and d0 is the diameter of the air outlet.

[0106] After calculating the Archimedean number Ar, the control device also includes calculating the jet length Where x is the jet length. The position corresponding to the jet length x is the jet point X.

[0107] Calculating the axial temperature difference △Tx at the jet point X according to the Archimedean number Ar includes: Among them, B is the room width, H is the room height, N is the number of air outlets, and a is the turbulence coefficient of the air outlet.

[0108] In the above embodiment, the axial temperature difference ΔTx refers to the value of the ambient temperature at the jet point X that is allowed to fluctuate, which is generally less than or equal to 1°C. When the axial temperature difference ΔTx is greater than 1, the control device adjusts the speed of the fan to adjust the terminal wind speed V0 of the air supply pipeline, thereby adjusting the ambient temperature at the jet point X and the axial temperature difference ΔTx. This arrangement can further improve the comfort of the air conditioner.

[0109] like Figure 5 and Figure 6As shown, optionally, the air supply pipeline is arranged horizontally, and the air supply port is arranged on the vertical end face of the air supply pipeline facing the room. After calculating the jet length x, the control device also includes: calculating Wherein, a is the angle between the outlet direction of the air supply duct and the horizontal. With such setting, the distance of the jet at the jet point X deviating from the horizontal axis can be checked.

[0110] When the jet at jet point X deviates from the horizontal axis, the control device can control the speed of the fan according to the distance the jet at jet point X deviates from the horizontal axis, thereby reducing the distance the jet at jet point X deviates from the horizontal axis.

[0111] like Fig.10 As shown, the embodiment of the present disclosure also provides a control device for an air conditioner, including a processor 401 (processor) and a memory 402 (memory). Optionally, the device may also include a communication interface 404 (Communication Interface) and a bus 403. The processor 401, the communication interface 404, and the memory 402 may communicate with each other through the bus 403. The communication interface 404 may be used for information transmission. The processor 401 may call the logic instructions in the memory 402 to execute the control method for the air conditioner of the above embodiment.

[0112] In addition, the logic instructions in the memory 402 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0113] The memory 402 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 401 executes the function application and data processing by running the program instructions / modules stored in the memory 402, that is, the control method for the air conditioner in the above embodiment is implemented.

[0114] The memory 402 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 402 may include a high-speed random access memory 402 and may also include a non-volatile memory 402.

[0115] The embodiment of the present disclosure further provides a computer-readable storage medium storing program instructions, which, when executed, are used to enable a computer to execute the control method for an air conditioner.

[0116] The technical solution of the embodiment of the present disclosure may be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, such as a U disk, a mobile hard disk, a read-only memory 402 (ROM, Read-Only Memory), a random access memory 402 (RAM, Random Access Memory), a disk or an optical disk, and other media that can store program codes.

[0117] The above description and the accompanying drawings fully illustrate the embodiments disclosed in the present application so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments disclosed in the present application are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A control method for an air conditioner, characterized in that: The air conditioner comprises: an air conditioner body, comprising an air supply system for supplying air to a room; an air supply pipeline, comprising an air inlet connected to the air supply system and an air outlet connected to the room; a gas flow rate sensor, the gas flow rate sensor being used to obtain a terminal wind speed V0 of the air supply pipeline; The control method comprises: Control the fan to supply air; Get the terminal wind speed V0 of the air supply pipeline; Control fan speed according to preset conditions; Among them, the preset conditions include the terminal wind speed V0.

2. The control method according to claim 1, characterized in that: The obtaining of the terminal wind speed V0 of the air supply pipeline comprises: periodically obtaining the terminal wind speed V0 of the air supply pipeline; After periodically acquiring the terminal wind speed V0 of the air supply pipeline, the control method further includes: Calculate the wind speed difference △V between the first end wind speed V1 of the current cycle and the second end wind speed V2 of the previous cycle; Among them, the preset conditions also include the wind speed difference △V.

3. The control method according to claim 1, characterized in that: The air conditioner further comprises: a first temperature sensor for obtaining an ambient temperature Tn; and a second temperature sensor for obtaining an air supply temperature T0; After obtaining the terminal wind speed V0 of the air supply pipeline, the control method further includes: Get the ambient temperature Tn and the supply air temperature T0; Calculate the Archimedean number Ar based on the terminal wind speed V0, ambient temperature Tn and supply air temperature T0; Calculate the axial temperature difference △Tx at the jet point X according to the Archimedean number Ar; Among them, the preset conditions also include the axial temperature difference △Tx.

4. A control device for an air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the control method for an air conditioner according to any one of claims 1 to 3 when running the program instructions.

5. An air conditioner, characterized in that: include: The air conditioner body includes an air supply system for supplying air to the room; An air supply pipeline, including an air inlet connected to the air supply system and an air outlet connected to the room; A gas flow rate sensor is arranged in the air supply pipeline, and the gas flow rate sensor is used to obtain the wind speed at the corresponding position of the air supply pipeline; and, The control device for an air conditioner as claimed in claim 4; Among them, at least one gas flow rate sensor is arranged on one side of the air supply pipeline close to the air outlet to obtain the terminal wind speed V0 of the air supply pipeline.

6. The air conditioner according to claim 5, characterized in that: Also includes: The first temperature sensor is arranged on the end surface of the air supply duct facing the indoor room, and is used to obtain the indoor ambient temperature Tn; and, The second temperature sensor is arranged on one side of the air supply pipeline close to the air outlet and is used to obtain the air supply temperature T0.

7. The air conditioner according to claim 5, characterized in that: The air supply pipeline includes a plurality of air supply pipe sections, and each of the plurality of air supply pipe sections is provided with at least one gas flow rate sensor; Wherein, the control device is electrically connected to a plurality of gas flow rate sensors respectively, so as to obtain the wind speeds at corresponding positions of a plurality of air supply pipe sections respectively.

8. The air conditioner according to claim 7, characterized in that: The air supply pipe is detachably connected to the air conditioner body; and, The multiple air supply pipe sections are detachably connected.

9. The air conditioner according to claim 8, characterized in that: The air supply pipe is connected to the air conditioner body; and / or, A plurality of air supply pipe sections are connected by clamping.

10. The air conditioner according to any one of claims 5 to 9, characterized in that: At least one gas flow rate sensor is arranged at the air supply outlet of the air supply pipeline; the air conditioner also includes: The damper assembly is arranged at the air outlet and is used to control the dredging and blocking of the air outlet; Wherein, the control device is electrically connected to the damper assembly; When the damper clears the air outlet, the control device can control the opening of the damper according to the air flow rate at the air supply outlet.

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