Air conditioning duct assembly, air conditioning and vehicle

Abstract

The present application is applicable to the technical field of vehicle air conditioning, and provides an air conditioning duct assembly, an air conditioner and a vehicle, wherein the air conditioning duct assembly includes a bellows, a filter element, a first fan and a second fan. When the air conditioner is turned on, the first fan is controlled to work, and the second fan is not operated. At this time, the airflow enters from the first air port of the bellows, and the airflow is filtered by the filter element. The filtered airflow is blown out from the second air port of the bellows, so that air circulation inside and outside the vehicle cockpit is achieved. When there is too much dust on the filter element, the second fan can be controlled to work, and the first fan can be not operated. At this time, the airflow flowing in from the second air port of the bellows blows toward the filter element, so that the dust on the filter element is detached, and the filter element is automatically cleaned. There is no need to disassemble the parts on the vehicle dashboard, which improves the convenience of cleaning the filter element.

Description

Technical Field

[0001] The present application belongs to the technical field of vehicle air conditioning, and in particular, relates to an air conditioning duct assembly, an air conditioner and a vehicle. Background Art

[0002] The air conditioning filter is an important part of the vehicle air conditioning. Due to the harsh environment in which the vehicle air conditioning is used, the air conditioning filter is always covered with dust. When there is too much dust on the air conditioning filter, you first need to remove the parts on the dashboard, and then take out the air conditioning filter for cleaning, which is a cumbersome operation. Summary of the invention

[0003] The embodiments of the present application provide an air conditioning duct assembly, an air conditioner and a vehicle, which can solve the problem of cumbersome operation of cleaning the filter element.

[0004] In a first aspect, an embodiment of the present application provides an air-conditioning duct assembly, comprising a bellows, a filter element, a first fan and a second fan, wherein the filter element is disposed at a first air outlet of the bellows for filtering an airflow flowing in from the first air outlet, the first fan and the second fan are both disposed in an inner cavity of the bellows, the first fan being used to blow the filtered airflow out from the second air outlet of the bellows, and the second fan being used to blow the airflow flowing in from the second air outlet toward the filter element to remove dust from the filter element.

[0005] In a possible implementation of the first aspect, the air conditioning duct assembly also includes a partition and a shielding assembly, and the partition and the shielding assembly are both arranged in the inner cavity of the bellows, and the partition divides the inner cavity of the bellows into a first inner cavity and a second inner cavity, the first fan is arranged in the first inner cavity, and the second fan is arranged in the second inner cavity; the shielding assembly can move between a first position and a second position, and when the shielding assembly is in the first position, the shielding assembly shields the first inner cavity, and when the shielding assembly is in the second position, the shielding assembly shields the second inner cavity.

[0006] In a possible implementation of the first aspect, the shielding assembly includes a motor and a shielding plate, the shielding plate is rotatably connected to the partition, the shaft of the motor is connected to the shielding plate, and the motor is used to drive the shielding plate to rotate between the first position and the second position.

[0007] In a possible implementation of the first aspect, the air conditioning duct assembly further includes a control unit and an air pressure collection unit, the air pressure collection unit is installed in the inner cavity of the air box and close to the air outlet side of the filter element, and the control unit is electrically connected to the air pressure collection unit, the first fan, and the second fan respectively;

[0008] The control unit is used to control the operation of the first fan and the second fan, and the air pressure collection unit is used to collect the air pressure value on the air outlet side of the filter element and transmit the air pressure value to the control unit; when the air pressure value is less than a preset air pressure value, the control unit is also used to send a warning message instructing cleaning the filter element.

[0009] In a possible implementation of the first aspect, when the air pressure value is less than a preset air pressure value, the control unit is further used to control the second fan to blow air toward the filter element within a preset time period to remove dust from the filter element.

[0010] In a possible implementation manner of the first aspect, when the control unit controls the second fan to operate, the control unit is configured to control a rotation speed of the second fan according to the air pressure value.

[0011] In a possible implementation of the first aspect, the air conditioning duct assembly further includes a humidity collection unit, which is disposed on an air inlet side close to the filter element, and the humidity collection unit is electrically connected to the control unit;

[0012] The humidity collection unit is used to collect the humidity value of the air inlet side of the filter element and transmit the humidity value to the control unit; when the humidity value is greater than a preset humidity value, the control unit is also used to control the first fan to stop working.

[0013] In a possible implementation of the first aspect, the control unit includes a controller, a command input device, and an alarm device, and the controller is electrically connected to the command input device, the alarm device, the air pressure collection unit, the first fan, and the second fan respectively;

[0014] The instruction input device is used to send control instructions to the controller, and the controller is used to control the operation of the first fan and the second fan according to the control instructions; when the air pressure value is less than a preset air pressure value, the controller is used to control the alarm to send an alarm message indicating cleaning the filter element.

[0015] In a second aspect, an embodiment of the present application provides an air conditioner, comprising the air conditioning duct assembly described in any one of the first aspects.

[0016] In a third aspect, an embodiment of the present application provides a vehicle, comprising the air conditioner described in the second aspect.

[0017] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0018] The embodiment of the present application provides an air duct assembly for an air conditioner, including a bellows, a filter element, a first fan, and a second fan. When the air conditioner is turned on, the first fan is controlled to work, and the second fan is not operated. At this time, the airflow enters from the first air port of the bellows, and the airflow is filtered by the filter element. The filtered airflow is blown out from the second air port of the bellows, so that air circulation inside and outside the vehicle cockpit is achieved. When there is too much dust on the filter element, the second fan can be controlled to work, and the first fan is not operated. At this time, the airflow flowing in from the second air port of the bellows blows toward the filter element, so that the dust on the filter element is detached, and the filter element is automatically cleaned. There is no need to disassemble the parts on the vehicle dashboard, which improves the convenience of cleaning the filter element.

[0019] It can be understood that the beneficial effects of the second and third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of an air conditioning duct assembly provided by an embodiment of the present application;

[0022] Figure 2 yes Figure 1 Right view of;

[0023] Figure 3 is a three-dimensional diagram of an air conditioning duct assembly provided in one embodiment of the present application;

[0024] Figure 4 is a schematic diagram of the internal structure of the air conditioning duct assembly when the shielding component provided by an embodiment of the present application is located in the first position;

[0025] Figure 5 is a schematic diagram of the internal structure of the air conditioning duct assembly when the shielding component provided by an embodiment of the present application is located in the second position;

[0026] Figure 6 is an exploded view of an air conditioning duct assembly provided in one embodiment of the present application;

[0027] Figure 7 It is a principle block diagram of an air conditioning duct assembly provided in one embodiment of the present application.

[0028] In the figure: 100, bellows; 101, first air outlet; 102, second air outlet; 200, filter element; 300, first fan; 400, second fan; 500, partition; 600, shielding assembly; 601, shielding plate; 602, motor; 700, air pressure collection unit; 800, humidity collection unit; 900, control unit. DETAILED DESCRIPTION

[0029] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0030] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0031] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0033] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0034] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0035] The air conditioning filter is an important part of the vehicle air conditioning. Due to the harsh environment in which the vehicle air conditioning is used, the filter of the vehicle air conditioning is always covered with dust. For existing vehicles, when there is too much dust on the air conditioning filter, it is necessary to first remove the parts on the dashboard and then take out the air conditioning filter for cleaning, which results in cumbersome steps for cleaning the filter.

[0036] Based on the above problems, an embodiment of the present application provides an air duct assembly for an air conditioner, including a bellows, a filter element, a first fan and a second fan. When the air conditioner is turned on, the first fan is controlled to work and the second fan is not operated. At this time, the airflow enters from the first air port of the bellows, and the airflow is filtered by the filter element. The filtered airflow is blown out from the second air port of the bellows to achieve air circulation inside and outside the vehicle cockpit. When there is too much dust on the filter element, the second fan can be controlled to work and the first fan can be not operated. At this time, the airflow flowing in from the second air port of the bellows blows toward the filter element, so that the dust on the filter element is detached, and the filter element is automatically cleaned. There is no need to disassemble the parts on the vehicle dashboard, which improves the convenience of cleaning the filter element.

[0037] In order to illustrate the technical solution described in this application, a specific embodiment is provided below for illustration.

[0038] like Figures 1 to 3 As shown, the air conditioning duct assembly includes a bellows 100, a filter element 200, a first fan 300 and a second fan 400. The filter element 200 is arranged at the first air outlet 101 of the bellows 100, and is used to filter the airflow flowing in from the first air outlet 101. The first fan 300 and the second fan 400 are both arranged in the inner cavity of the bellows 100. The first fan 300 is used to blow the filtered airflow out from the second air outlet 102 of the bellows 100, and the second fan 400 is used to blow the airflow flowing in from the second air outlet 102 toward the filter element 200, so as to remove the dust on the filter element 200.

[0039] Specifically, when the air duct assembly of the air conditioner is in use, the first air outlet 101 of the bellows 100 is connected to the air inlet of the air conditioner, and the second air outlet 102 of the bellows 100 is connected to multiple air outlets in the vehicle cockpit through the air duct. When the air conditioner is turned on normally, the first fan 300 is controlled to work, and the second fan 400 is controlled not to work. At this time, the airflow enters from the first air outlet 101 of the bellows 100, and the airflow is filtered by the filter element 200. The filtered airflow is blown out from the second air outlet 102 of the bellows 100, so that the air circulation in the vehicle cockpit and outside the vehicle is realized. When there is too much dust on the filter element 200, the second fan 400 can be controlled to work, and the first fan 300 can be stopped. At this time, the airflow flowing in from the second air outlet 102 of the bellows 100 blows toward the filter element 200, so that the dust on the filter element 200 is separated, and the filter element 200 is automatically cleaned. There is no need to disassemble the parts on the vehicle dashboard, which improves the convenience of cleaning the filter element 200.

[0040] It should be noted that, in the present application, when the second fan 400 is turned on, in addition to removing the dust on the filter element 200 , other foreign matter on the filter element 200 can also be removed from the filter element 200 , thereby achieving the effect of cleaning the filter element 200 .

[0041] like Figure 6 As shown, the filter element 200 can be installed in the inner cavity of the bellows 100, and the air inlet side of the filter element 200 is close to the first air port 101 of the bellows 100, ensuring that the airflow outside the vehicle enters through the first air port 101 and is filtered by the filter element 200, and the filtered airflow passes through the inner cavity of the bellows 100 and is blown out to the vehicle's cockpit through the second air port 102. The filter element 200 can also be arranged outside the bellows 100, and the air inlet side of the filter element 200 covers the first air port 101 of the bellows 100, and the airflow outside the vehicle enters through the first air port 101 after being filtered by the filter element 200, passes through the inner cavity of the bellows 100, and is blown out to the vehicle's cockpit through the second air port 102.

[0042] It should be noted that the filter element 200 usually includes an air inlet side and an air outlet side. The airflow outside the vehicle enters from the air inlet side of the filter element 200 and is blown out from the air outlet side of the filter element 200, thereby achieving filtering of the airflow by the filter element 200.

[0043] like Figure 4 and Figure 5As shown, the air conditioning duct assembly also includes a partition 500 and a shielding component 600, both of which are arranged in the inner cavity of the bellows 100, and the partition 500 divides the inner cavity of the bellows 100 into a first inner cavity and a second inner cavity, the first fan 300 is arranged in the first inner cavity, and the second fan 400 is arranged in the second inner cavity; the shielding component 600 can move between a first position and a second position, when the shielding component 600 is located at the first position, the shielding component 600 shields the first inner cavity, and when the shielding component 600 is located at the second position, the shielding component 600 shields the second inner cavity.

[0044] Specifically, the partition 500 is used to divide the inner cavity of the bellows 100 into a first inner cavity and a second inner cavity, and the first fan 300 is arranged in the first inner cavity, and the second fan 400 is arranged in the second inner cavity. The first fan 300 and the second fan 400 can be separated to ensure that the first fan 300 and the second fan 400 do not interfere with each other, thereby improving the stability of the first fan 300 and the second fan 400.

[0045] The shielding assembly 600 can move between a first position and a second position, and can shield the first inner cavity or the second inner cavity. Figure 5 As shown, when the air conditioner is turned on, the shielding component 600 is controlled to be in the second position, the first fan 300 is controlled to work, and the second fan 400 is controlled not to work, the shielding component 600 shields the second inner cavity, and the first inner cavity is respectively connected to the first air outlet 101 and the second air outlet 102 of the bellows 100. At this time, under the action of the first fan 300, the air flow filtered by the filter element 200 enters from the first air outlet 101, passes through the first inner cavity, and is blown out from the second air outlet 102. The air flow then passes through the warm air core or evaporator in the air duct to achieve heating or cooling. Finally, the air flow with a suitable temperature is blown out from multiple air outlets in the cockpit, thereby realizing the temperature regulation function in the cockpit.

[0046] like Figure 4 As shown, when the filter element 200 needs to be cleaned, the shielding component 600 is controlled to be in the first position, the first fan 300 is controlled not to work, and the second fan 400 is controlled to work. The shielding component 600 blocks the first inner cavity, and the second inner cavity is respectively connected to the first air outlet 101 and the second air outlet 102 of the bellows 100. At this time, under the action of the second fan 400, the air flow enters from the second air outlet 102, passes through the second inner cavity, and blows toward the filter element 200, so that the dust on the filter element 200 is separated, thereby achieving the effect of cleaning the filter element 200.

[0047] Exemplarily, the shielding assembly 600 includes a motor 602 and a shielding plate 601, wherein the shielding plate 601 is rotatably connected to the partition 500, and the shaft of the motor 602 is connected to the shielding plate 601, and the motor 602 is used to drive the shielding plate 601 to rotate between a first position and a second position. By controlling the forward or reverse rotation of the motor 602, the shielding plate 601 is controlled to rotate between the first position and the second position, thereby realizing automatic control of the shielding assembly 600.

[0048] like Figure 7 As shown, the air conditioning duct assembly also includes a control unit 900 and an air pressure collection unit 700. The air pressure collection unit 700 is installed in the inner cavity of the bellows 100 and close to the air outlet side of the filter element 200. The control unit 900 is electrically connected to the air pressure collection unit 700, the first fan 300 and the second fan 400 respectively.

[0049] Specifically, when the vehicle needs to turn on the air conditioner, the control unit 900 controls the first fan 300 to work. Under the action of the first fan 300, the air flow filtered by the filter element 200 enters from the first air outlet 101, passes through the inner cavity of the bellows 100, and is blown out from the second air outlet 102. The air flow then passes through the heater core or evaporator in the air duct to achieve heating or cooling. Finally, the air flow with a suitable temperature is blown out from multiple air outlets in the cockpit, thereby realizing the temperature regulation function in the cockpit.

[0050] When the air conditioner is turned on, the air pressure collection unit 700 is used to collect the air pressure value on the air outlet side of the filter element 200 and transmit the air pressure value to the control unit 900. After receiving the air pressure value, the control unit 900 compares the received air pressure value with the preset air pressure value. When the air pressure value is less than the preset air pressure value, it means that there is too much dust on the filter element 200 and the air flow cannot pass through the filter element 200 quickly and smoothly. At this time, the control unit 900 sends a warning message indicating to clean the filter element 200. After receiving the warning message, the user knows that there is too much dust on the filter element 200, and cleans the filter element 200 in time to ensure the normal operation of the air conditioner. The setting of the air pressure collection unit 700 realizes the monitoring of the cleaning state of the filter element 200. Exemplarily, the air pressure collection unit 700 can use an air pressure sensor. It should be noted that the designer can set the specific value of the preset air pressure value according to the actual situation (for example, the model of the filter element, the size of the first air outlet 101, the model of the first fan 300, etc.).

[0051] After receiving the warning message, the user can choose an appropriate time to clean the filter element 200. When cleaning the filter element 200, the control unit 900 controls the second fan 400 to work. Under the action of the second fan 400, the airflow enters from the second air port 102, passes through the inner cavity of the bellows 100, and blows toward the filter element 200, so that the dust on the filter element 200 is removed, and the effect of cleaning the filter element 200 is achieved. There is no need to disassemble the parts on the vehicle dashboard, which improves the convenience of cleaning the filter element 200.

[0052] In one embodiment of the present application, when the air pressure value is less than a preset air pressure value, the control unit 900 is further used to control the second fan 400 to blow air toward the filter element 200 within a preset time period to remove dust from the filter element 200 .

[0053] Specifically, the preset time period is a period of time when the vehicle is in the starting state and the air conditioner is not turned on. The starting time and duration of the time period can be set according to actual needs. For example, the starting time of the preset time period is set to the next time the vehicle is started and the air conditioner is not turned on. The duration of the preset time period is 3 minutes, 5 minutes or 10 minutes. When the air pressure value is less than the preset air pressure value, it means that there is too much dust on the filter element 200. The control unit 900 controls the second fan 400 to blow air to the filter element 200 within the preset time period to remove the dust on the filter element 200. The user does not need to perform any operation to achieve automatic cleaning of the filter element 200.

[0054] When the control unit 900 controls the second fan 400 to work, the control unit 900 can also control the speed of the second fan 400 according to the air pressure value. When the air pressure value is smaller, it means that there is more dust on the filter element 200, and the control unit 900 controls the speed of the second fan 400 to be higher; when the air pressure value is larger, it means that there is less dust on the filter element 200, and the control unit 900 controls the speed of the second fan 400 to be lower, but it cannot be lower than the preset speed. Under the premise of ensuring that the filter element 200 can be effectively cleaned, energy consumption is reduced.

[0055] In one embodiment of the present application, the air conditioning duct assembly further includes a humidity collection unit 800 , which is disposed on the air inlet side close to the filter element 200 , and the humidity collection unit 800 is electrically connected to the control unit 900 .

[0056] Specifically, the humidity collection unit 800 is used to collect the humidity value of the air inlet side of the filter element 200, and transmit the humidity value to the control unit 900. When the humidity value is greater than the preset humidity value, it means that the humidity of the air outside the vehicle is relatively high. If the airflow passes through the filter element 200 at this time, it is easy to wet the filter element 200, causing dust and foreign matter to accumulate on the filter element 200 more easily, causing the filter element 200 to be blocked. At this time, the control unit 900 controls the first fan 300 to stop working, and the airflow outside the vehicle no longer flows into the cockpit through the filter element 200, that is, the external circulation of the air conditioner is closed, and the air conditioner operates in the internal circulation working mode to prevent dust and foreign matter from accumulating on the filter element 200.

[0057] In one embodiment of the present application, the control unit 900 includes a controller, a command input device and an alarm device, and the controller is electrically connected to the command input device, the alarm device, the air pressure collection unit 700, the first fan 300 and the second fan 400 respectively.

[0058] Specifically, the command input device is used to send control commands to the controller, and the controller is used to control the first fan 300 and the second fan 400 to work according to the control commands. Exemplarily, the command input device can be a keyboard, a touch screen or a voice receiver, and the user can issue specific control commands through the command input device, and the command input device then transmits the control commands to the controller. For example, when the user sends an air-conditioning start command to the controller through the command input device, the controller controls the first fan 300 to work according to the air-conditioning start command. At this time, the airflow enters from the first air outlet 101 of the bellows 100, and the airflow is filtered by the filter element 200, and the filtered airflow is blown out from the second air outlet 102 of the bellows 100, so as to realize air circulation inside and outside the vehicle cockpit. When the user sends a command to clean the filter element 200 to the controller through the command input device, the control unit 900 controls the second fan 400 to operate according to the command to clean the filter element 200. At this time, the airflow flowing in from the second air outlet 102 of the bellows 100 blows toward the filter element 200, so that the dust on the filter element 200 is separated, thereby achieving the effect of automatic cleaning of the filter element 200. There is no need to disassemble the parts on the vehicle dashboard, which improves the convenience of cleaning the filter element 200.

[0059] When the air pressure value is less than the preset air pressure value, it means that the filter element 200 needs to be cleaned. At this time, the controller is used to control the alarm to send an alarm message indicating to clean the filter element 200, so as to notify the user. Exemplarily, the alarm can be an indicator light or a display in the cab. After receiving the alarm message, the user knows that the filter element 200 needs to be cleaned. The user sends a command to clean the filter element 200 to the controller through the command input device. The control unit 900 controls the second fan 400 to work according to the command to clean the filter element 200. At this time, the airflow flowing in from the second air outlet 102 of the bellows 100 blows toward the filter element 200, so that the dust on the filter element 200 is detached, and the filter element 200 is automatically cleaned.

[0060] The present application also provides an air conditioner, including the air conditioner duct assembly described above, which has an automatic filter element cleaning function, does not require the removal of components on the vehicle dashboard, and improves the convenience of filter element cleaning. The specific working principle is described in the description of the air conditioner duct assembly described above, and will not be repeated here.

[0061] The present application also provides a vehicle, including the air conditioner described above, which has an automatic filter element cleaning function, and does not require the removal of components on the vehicle dashboard, thereby improving the convenience of filter element cleaning. The specific working principle is described in the description of the air conditioner duct assembly described above, and will not be repeated here.

[0062] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An air conditioning duct assembly, It is characterized in that The invention comprises a bellows, a filter element, a first fan and a second fan, wherein the filter element is arranged at a first air port of the bellows and is used to filter the airflow flowing in from the first air port, the first fan and the second fan are both arranged in an inner cavity of the bellows, the first fan is used to blow the filtered airflow out from the second air port of the bellows, and the second fan is used to blow the airflow flowing in from the second air port toward the filter element to remove dust from the filter element; The air conditioning duct assembly also includes a partition and a shielding assembly, and the partition and the shielding assembly are both arranged in the inner cavity of the bellows, and the partition divides the inner cavity of the bellows into a first inner cavity and a second inner cavity, the first fan is arranged in the first inner cavity, and the second fan is arranged in the second inner cavity; the shielding assembly can move between a first position and a second position, and when the shielding assembly is in the first position, the shielding assembly shields the first inner cavity, and when the shielding assembly is in the second position, the shielding assembly shields the second inner cavity.

2. The air conditioning duct assembly according to claim 1, It is characterized in that The shielding assembly includes a motor and a shielding plate, the shielding plate is rotatably connected to the partition, the shaft of the motor is connected to the shielding plate, and the motor is used to drive the shielding plate to rotate between the first position and the second position.

3. The air conditioning duct assembly according to any one of claims 1-2, It is characterized in that The air conditioning duct assembly further includes a control unit and an air pressure collection unit, wherein the air pressure collection unit is installed in the inner cavity of the air box and close to the air outlet side of the filter element, and the control unit is electrically connected to the air pressure collection unit, the first fan and the second fan respectively; The control unit is used to control the operation of the first fan and the second fan, and the air pressure collection unit is used to collect the air pressure value on the air outlet side of the filter element and transmit the air pressure value to the control unit; when the air pressure value is less than a preset air pressure value, the control unit is also used to send a warning message instructing cleaning the filter element.

4. The air conditioning duct assembly according to claim 3, It is characterized in that When the air pressure value is less than a preset air pressure value, the control unit is further used to control the second fan to blow air toward the filter element within a preset time period to remove dust from the filter element.

5. The air conditioning duct assembly according to claim 3, It is characterized in that When the control unit controls the second fan to operate, the control unit is used to control the rotation speed of the second fan according to the air pressure value.

6. The air conditioning duct assembly according to claim 3, It is characterized in that The air conditioning duct assembly further includes a humidity collection unit, which is disposed on the air inlet side close to the filter element and is electrically connected to the control unit; The humidity collection unit is used to collect the humidity value of the air inlet side of the filter element and transmit the humidity value to the control unit; when the humidity value is greater than a preset humidity value, the control unit is also used to control the first fan to stop working.

7. The air conditioning duct assembly according to claim 3, It is characterized in that The control unit comprises a controller, a command input device and an alarm device, wherein the controller is electrically connected to the command input device, the alarm device, the air pressure collection unit, the first fan and the second fan respectively; The instruction input device is used to send control instructions to the controller, and the controller is used to control the operation of the first fan and the second fan according to the control instructions; when the air pressure value is less than a preset air pressure value, the controller is used to control the alarm to send an alarm message indicating cleaning the filter element.

8. An air conditioner, It is characterized in that It comprises the air conditioning duct assembly as described in any one of claims 1 to 7.

9. A vehicle, It is characterized in that Comprising the air conditioner as claimed in claim 8.

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