Air conditioner

Abstract

The utility model relates to the technical field of household appliances. The utility model discloses an air conditioner. The air conditioner comprises an air conditioner body, an air supply pipeline, a gas flow rate sensor and a control element. The air conditioner body 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 arranged on the air supply pipeline and used for obtaining the air flow rate of the corresponding position of the air supply pipeline; the control element is electrically connected with the air supply system and the gas flow rate sensor, and the control element can control the air supply speed of the air supply system according to the air flow rate of the corresponding position of the air supply pipeline; at least one gas flow rate sensor is arranged on the side, close to the air outlet, of 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.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to air conditioners. Background Art

[0002] With the development of society and the gradual improvement of people's living standards, central air conditioning has gradually entered ordinary households. Central air conditioners are generally ducted. Ducted central air conditioners are installed in the ceiling and connected to the indoor environment through air supply ducts to supply air. However, central air conditioners generally have numerous air supply ducts and are often concealed within the wall. This results in long air supply ducts. Therefore, traditional central air conditioners use step-by-step fan control, which cannot track changes in terminal demand in real time, resulting in limited energy savings and poor comfort.

[0003] To address this issue, existing central air conditioners incorporate air pressure sensors within the air supply ducts, controlling the fan speed based on the air supply pressure. This allows the central air conditioner to determine the overall air volume demand based on the air pressure within the ducts, improving energy efficiency and comfort to a certain extent.

[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0005] In the related art, existing central air conditioners that control fan speed based on air pressure within the air supply duct typically use a static pressure sensor to obtain the static pressure value within the air supply duct and control the fan speed based on the static pressure value. Because the static pressure value cannot accurately reflect changes in air volume, existing central air conditioners cannot accurately control air speed, resulting in 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 this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Utility Model Content

[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 elements 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 an air conditioner that can detect the air flow rate at the end of an air supply duct and control the air supply speed of the air supply system based on the air flow rate at the end of the air supply duct. This configuration allows for more accurate air supply system speed, further improving the air conditioner's energy efficiency and comfort, and enhancing the user experience.

[0009] An embodiment of the present disclosure provides an air conditioner comprising: an air conditioner body, an air supply duct, a gas flow rate sensor, and a control element. The air conditioner body includes an air supply system for supplying air to a room; the air supply duct includes an air inlet connected to the air supply system and an air outlet connected to the room; a gas flow rate sensor is disposed on the air supply duct and is used to obtain the air flow rate at a corresponding position on the air supply duct; the control element is electrically connected to the air supply system and the gas flow rate sensor, respectively, and the control element can control the air supply speed of the air supply system based on the air flow rate at the corresponding position on the air supply duct; wherein at least one gas flow rate sensor is disposed on a side of the air supply duct near the air outlet.

[0010] In some embodiments, the air supply system includes a fan; the control element is used to obtain the fan speed and the wind speed at the corresponding position of the air supply duct; wherein, when the fan speed and the wind speed at the corresponding position of the air supply duct meet preset conditions, the control element determines that the air supply duct is blocked and controls the fan to increase the speed.

[0011] In some embodiments, when the speed of the fan and the wind speed at the corresponding position of the air supply pipeline meet the preset conditions, the control element determines that the air supply pipeline is blocked, including: when the speed of the fan remains constant, if The control element determines that the air supply pipe 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.

[0012] In some embodiments, the air supply duct 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; wherein the control element is electrically connected to the multiple gas flow rate sensors respectively to obtain the wind speed at the corresponding positions of the multiple air supply duct sections respectively.

[0013] In some embodiments, the air supply duct is detachably connected to the air conditioner body; and the multiple air supply duct sections are detachably connected to each other.

[0014] In some embodiments, the air supply pipe is snap-connected to the air conditioner body; and the multiple air supply pipe sections are snap-connected.

[0015] In some embodiments, the air conditioner further comprises: a warning device electrically connected to the control element; when the control element determines that the air supply duct is blocked, the control element triggers the warning device to alert the user of the blockage.

[0016] In some embodiments, at least one air flow rate sensor is provided at the air outlet of the air supply duct; the air conditioner further comprises a damper assembly. The damper assembly is provided at the air outlet and is used to control the unblocking and blocking of the air outlet; wherein the control element is electrically connected to the damper assembly; when the damper is unblocking the air outlet, the control element can control the opening of the damper according to the air flow rate at the air outlet.

[0017] In some embodiments, the air supply duct is provided with a plurality of air supply outlets, and the plurality of air supply outlets are respectively connected to the indoor space; wherein, the plurality of air supply outlets are each provided with at least one gas flow rate sensor and damper assembly.

[0018] In some embodiments, a filter structure is provided at the air outlet.

[0019] The air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] An embodiment of the present disclosure provides an air conditioner comprising: an air conditioner body, an air supply duct, a gas flow rate sensor, and a control element. The air conditioner body includes an air supply system for supplying air to a room; the air supply duct includes an air inlet connected to the air supply system and an air outlet connected to the room; a gas flow rate sensor is disposed in the air supply duct, and is used to obtain the air flow rate at a corresponding position in the air supply duct; a control element is electrically connected to the air supply system and the gas flow rate sensor, respectively, and the control element can control the air supply speed of the air supply system based on the air flow rate at a corresponding position in the air supply duct; wherein at least one gas flow rate sensor is disposed on a side of the air supply duct near the air outlet. In this way, when the air conditioner is turned on, the air supply system can supply air to the room through the air supply duct. At this time, the gas flow rate sensor can obtain the air flow rate at a position in the air supply duct near the air outlet in real time, and control the fan speed in real time based on the air flow rate to adjust the air speed at the air supply duct outlet. This setting can more accurately measure the wind speed of the air supply system, further improve the energy-saving ability and comfort of the air conditioner, and enhance 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. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

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

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

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

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

[0027] Reference numerals:

[0028] 11: Casing; 12: Fan;

[0029] 20: air supply pipe; 21: first air supply pipe section; 22: second air supply pipe section; 23: air supply port; 24: damper assembly;

[0030] 31: Gas flow rate sensor; 32: Air density sensor;

[0031] 40: Warning device. DETAILED DESCRIPTION

[0032] In order to be able to understand the features and technical content 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 accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of 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.

[0033] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0034] 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 having 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.

[0035] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0036] Unless otherwise stated, the term "plurality" means two or more.

[0037] 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 means: A or B.

[0038] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0040] In existing technology, central air conditioning systems primarily rely on fan stepping or speed control. Fan stepping control cannot track changes in terminal load demand in real time, resulting in limited energy savings and poor comfort. Fan speed control currently uses the static pressure of the supply air as the controlled parameter. This is determined by using a static pressure sensor installed within the air supply duct to measure the static pressure at the corresponding location. This static pressure is then used to determine the overall air volume demand of the system.

[0041] However, static pressure and air volume are not simply related by precedence, but are also related to motor power and fan efficiency. Therefore, choosing supply air static pressure as the controlled parameter for fan speed adjustment makes it impossible to precisely control wind speed and constant air volume, resulting in a poor user experience.

[0042] like Figures 1 to 4 As shown, the embodiment of the present disclosure provides an air conditioner that can detect the air flow rate at the end of the air supply duct 20 and control the air supply speed of the air supply system according to the air flow rate at the end of the air supply duct 20. This configuration can more accurately measure the air supply system speed, further improving the energy saving capability and comfort of the air conditioner, and enhancing the user experience.

[0043] like Figures 1 to 4 As shown, an embodiment of the present disclosure provides an air conditioner comprising: an air conditioner body, an air supply duct 20, a gas flow rate sensor 31, and a control element. The air conditioner body comprises an air supply system for supplying air to the room; the air supply duct 20 comprises an air inlet connected to the air supply system and an air outlet connected to the room; the gas flow rate sensor 31 is provided on the air supply duct 20, and is used to obtain the air flow rate at a corresponding position of the air supply duct 20; the control element is electrically connected to the air supply system and the gas flow rate sensor 31, respectively, and the control element can control the air supply speed of the air supply system according to the air flow rate at a corresponding position of the air supply duct 20; wherein, at least one gas flow rate sensor 31 is provided on the side of the air supply duct 20 close to the air outlet.

[0044] Specifically, the above-mentioned 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. A gas flow rate sensor 31 is provided 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. A control element can be provided in the casing 11, and is used to control the air supply wind speed of the air supply system.

[0045] When the air conditioner is turned on, the air supply system delivers air to the room through the air supply duct 20, cooling or heating the room. At this point, the air flow rate sensor 31 can obtain the actual wind speed at the end of the air supply duct 20 in real time and transmit the actual wind speed to the control unit. After obtaining the actual wind speed, the control unit compares the actual wind speed at the end of the duct with the preset wind speed. Based on the difference between the actual and preset wind speeds, the control unit controls the air supply system's wind speed, thereby precisely controlling the wind speed delivered to the room.

[0046] For example, when the actual wind speed is greater than the preset wind speed, the control element 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 element can control the air supply system to increase the air supply speed, thereby increasing the actual wind speed blown into the room.

[0047] With this 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.

[0048] In practical applications, when environmental conditions do not change much, users generally choose a constant air volume. However, because static pressure cannot accurately reflect changes in air volume, existing air conditioners that use static pressure to control air speed may experience significant fluctuations in the air volume delivered to the room. The air conditioner provided by this application can achieve the effect of maintaining a constant air volume by precisely controlling the actual air speed delivered to the room, further improving the user experience.

[0049] like Figures 1 to 3 As shown, in some embodiments, the air supply system includes a fan 12; the control element is used to obtain the rotational speed of the fan 12 and the wind speed at the corresponding position of the air supply duct 20; wherein, when the rotational speed of the fan 12 and the wind speed at the corresponding position of the air supply duct 20 meet preset conditions, the control element determines that the air supply duct 20 is blocked and controls the fan 12 to increase the rotational speed.

[0050] 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 element can control the speed of the fan 12, thereby controlling the air supply speed of the air supply system.

[0051] The control unit can detect the rotation speed of the fan 12 and the wind speed in the air supply duct 20 through the gas flow rate sensor 31. If the wind speed in the air supply duct 20 decreases while the rotation speed of the fan 12 remains unchanged, it indicates that the resistance in the air supply duct 20 has increased. In this case, the control unit determines that there is a blockage in the air supply duct 20 and controls the fan 12 to increase its rotation speed to increase the air supply speed of the fan 12, thereby increasing the actual air speed blown into the room to ensure a constant wind speed.

[0052] In some embodiments, when the speed of the fan 12 and the wind speed at the corresponding position of the air supply pipe 20 meet the preset conditions, the control element determines that the air supply pipe 20 is blocked, including: when the speed of the fan 12 remains constant, if The control element determines that the air supply pipe 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.

[0053] Specifically, an air density sensor 32 is installed in the air supply duct 20 at a location corresponding to the gas flow rate sensor 31. Air density sensor 32 measures the air density at that location. The control element is electrically connected to air density sensor 32, allowing it to transmit the air density information at that location to the control element. This arrangement further improves the air conditioner's precision in controlling wind speed.

[0054] When the speed of the fan 12 is kept constant, the control element 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 element determines that the air supply pipeline 20 is blocked.

[0055] 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 element is electrically connected to the multiple gas flow rate sensors 31 respectively to respectively obtain the wind speed at the corresponding positions of the multiple air supply duct sections.

[0056] Specifically, if the air supply duct 20 is long overall, it can be divided into multiple air supply duct sections. Each of these air supply duct sections is equipped with a gas flow velocity sensor 31, and the control element is electrically connected to each of these gas flow velocity sensors 31. This allows the control element to obtain the wind speed of each of these air supply duct sections to determine which air supply duct section is blocked.

[0057] like Figure 1 and Figure 2 As shown, in some practical applications, the air supply duct 20 includes a first air supply duct section 21 and a second air supply duct section 22, and both air supply duct sections are provided with a gas flow rate sensor 31. At this time, the control element can respectively obtain the actual wind speed of the first air supply duct section 21 and the second air supply duct section 22. When the speed of the fan 12 remains unchanged, if the wind speeds of the first air supply duct section 21 and the second air supply duct section 22 both decrease, and the degree of decrease in the wind speed of the second air supply duct section 22 is the same as that of the first air supply duct section 21, it indicates that the first air supply duct section 21 is blocked; if the wind speed of the first air supply duct section 21 is normal, but the wind speed of the second air supply duct section 22 decreases, it indicates that the second air supply duct section 22 is blocked; if the wind speeds of the first air supply duct section 21 and the second air supply duct section 22 both decrease, and the degree of decrease in the wind speed of the second air supply duct section 22 is greater than that of the first air supply duct section 21, it indicates that both the first air supply duct section 21 and the second air supply duct section 22 are blocked.

[0058] 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.

[0059] Specifically, the air supply duct 20 is detachably connected to the air conditioner housing 11. If the air supply duct 20 becomes clogged, the air supply duct 20 can be removed from the housing 11, making it more convenient for the user to replace or clean the air supply duct 20. Similarly, if the air supply duct 20 includes multiple air supply duct sections, the multiple air supply duct sections are detachably connected. If some of the air supply duct sections become clogged, the user only needs to remove the clogged air supply duct section for replacement or cleaning.

[0060] 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 multiple air supply duct sections, a sealing structure is also provided at the connection between the multiple air supply duct sections.

[0061] 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.

[0062] Specifically, the housing 11 is provided with a slot at the position corresponding to the air supply duct 20, and the air supply duct 20 is provided with a snap-in protrusion at the position corresponding to the slot. The snap-in protrusion can be snapped into the slot to snap the air supply duct 20 to the housing 11. Similarly, adjacent air supply duct sections are provided with corresponding slots and snap-in protrusions. The user can snap 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.

[0063] In practical applications, after the air supply duct 20 is clamped to the housing 11 , the air supply duct 20 may be fastened to the housing 11 by fasteners such as screws or bolts.

[0064] like Figures 1 to 3 As shown, in some embodiments, the air conditioner further includes: a warning device. The warning device is electrically connected to the control element; when the control element determines that the air supply duct 20 is blocked, the control element triggers the warning device to remind the user of the blockage.

[0065] Specifically, the warning device can be a device that emits an audible or visual signal. The warning device is mounted on the air conditioner housing 11 or on a wall inside the room. When the control unit determines that the air supply duct 20 is clogged, the control unit can trigger the warning device. At this point, the warning device emits an audible or visual signal to alert the user that the air supply duct 20 is clogged.

[0066] Optionally, the air conditioner further comprises a display device, and the control element 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.

[0067] 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 duct 20. The air conditioner further includes 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. The control element is electrically connected to the damper assembly 24. When the damper dredges the air outlet, the control element can control the opening of the damper according to the air flow rate at the air outlet 23.

[0068] Specifically, a gas flow rate sensor 31 located at the air outlet 23 can detect the wind speed at the air outlet 23. If the actual wind speed at the air outlet 23 exceeds a preset speed, the control unit can control the damper assembly 24 to open slightly less, thereby reducing the air volume at the air outlet 23. If the actual wind speed at the air outlet 23 is less than the preset speed, the control unit can control the damper assembly 24 to open slightly more, thereby increasing the air volume at the air outlet 23. This configuration enriches the air conditioner's control methods.

[0069] like Figure 3 As 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.

[0070] Specifically, the portion of the air supply duct 20 extending into the room is provided with multiple air supply openings 23, with adjacent air supply openings 23 spaced uniformly apart. Thus, when the air conditioner is turned on, the air supply system can deliver air into the room through the multiple air supply openings 23, increasing the uniformity of the airflow into the room and further enhancing the user experience. Furthermore, the control unit can control the opening of the corresponding damper assembly 24 based on the wind speed at each of the multiple air supply openings 23.

[0071] It is understandable that when the air supply duct 20 is long and has multiple air supply outlets 23, the air supply volumes at the multiple outlets may differ due to the different distances between the multiple air supply outlets 23 and the air supply system. The air conditioner provided in this application can control the air supply volumes of the multiple outlets separately, thereby ensuring that the air supply volume at each air supply outlet 23 is the same, thereby further improving the uniformity of the air flow into the room.

[0072] In some embodiments, a filter structure is provided at the air outlet 23 .

[0073] Specifically, the filter structure is detachably installed at the air outlet 23 to filter the air flowing into the room.

[0074] In actual application, the control element 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 element can trigger the warning device to remind the user to replace the filter structure at the air outlet 23.

[0075] The above description and the accompanying drawings sufficiently illustrate the embodiments disclosed in this application to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments disclosed in this 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 this disclosure is limited only by the appended claims.

Claims

1. An air conditioner, characterized in that: include: The air conditioner body includes an air supply system for supplying air to the room; Air supply duct, including an air inlet connected to the air supply system and an air outlet connected to the room; A gas flow rate sensor is provided in the air supply pipeline, and is used to obtain the air flow rate at the corresponding position of the air supply pipeline; and The control element is electrically connected to the air supply system and the gas flow rate sensor, and the control element can control the air supply speed of the air supply system according to the air flow rate at the corresponding position of the air supply pipeline; Among them, at least one gas flow rate sensor is provided on one side of the air supply pipeline close to the air outlet.

2. The air conditioner according to claim 1, characterized in that The air supply system includes a fan; The control element is used to obtain the fan speed and the wind speed at the corresponding position of the air supply pipeline; Among them, when the rotation speed of the fan and the wind speed at the corresponding position of the air supply pipeline meet the preset conditions, the control element determines that the air supply pipeline is blocked and controls the fan to increase the rotation speed.

3. The air conditioner according to claim 2, characterized in that When the speed of the fan and the wind speed at the corresponding position of the air supply pipeline meet the preset conditions, the control element determines that the air supply pipeline is blocked, including: when the speed of the fan remains constant, if Then the control element 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 I is the actual wind speed.

4. The air conditioner according to claim 3, 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; The control element is electrically connected to a plurality of gas flow rate sensors respectively to obtain wind speeds at corresponding positions of a plurality of air supply pipe sections respectively.

5. The air conditioner according to claim 4, 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.

6. The air conditioner according to claim 5, characterized in that The air supply pipe is connected to the air conditioner body; and / or, Multiple air supply pipe sections are connected by snap-fit.

7. The air conditioner according to claim 2, characterized in that Also includes: a warning device electrically connected to the control element; When the control element determines that the air supply pipeline is blocked, the control element triggers the warning device to remind the user that the blockage has occurred.

8. The air conditioner according to any one of claims 1 to 7, characterized in that: At least one gas flow rate sensor is provided at the air outlet of the air supply pipeline; the air conditioner further comprises: The damper assembly is set at the air outlet to control the dredging and blocking of the air outlet; wherein the control element is electrically connected to the damper assembly; When the damper is unblocking the air outlet, the control element can control the opening of the damper according to the air flow rate at the air outlet.

9. The air conditioner according to claim 8, characterized in that The air supply duct is provided with a plurality of air supply outlets, and the plurality of air supply outlets are respectively connected to the indoor space; Wherein, each of the plurality of air supply outlets is provided with at least one gas flow rate sensor and a damper assembly.

10. The air conditioner according to any one of claims 1 to 7, characterized in that: A filter structure is provided at the air supply outlet.

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