CN115489274A - Air conditioner air duct assembly, air conditioner and vehicle - Google Patents

Abstract

This application is applicable to vehicle air conditioner technical field, provides an air conditioner air duct assembly, air conditioner and vehicle, and above-mentioned air conditioner air duct assembly includes bellows, filter core, first fan and second fan. When the air conditioner is opened, the first fan is controlled to work, the second fan does not work, the air flow enters from the first air opening of the air box at the moment, the air flow can be filtered by the filter element, the filtered air flow is blown out from the second air opening of the air box, and the air circulation inside and outside the vehicle cockpit is realized. When the dust on the filter element is too much, the second fan can be controlled to work, the first fan does not work, the air flow flowing in from the second air port of the air box blows to the filter element at the moment, so that the dust on the filter element is separated, the automatic cleaning effect of the filter element is realized, parts on a vehicle instrument desk do not need to be detached, and the convenience of cleaning the filter element is improved.

Description

Air conditioner air duct assembly, air conditioner and vehicle

Technical Field

The application belongs to the technical field of vehicle air conditioners, and particularly relates to an air conditioner air duct assembly, an air conditioner and a vehicle.

Background

The air conditioner filter element is an important component of a vehicle air conditioner, and because the use environment of the vehicle air conditioner is severe, the filter element of the vehicle air conditioner is always stained with dust. When the dust on the air conditioner filter element is too much, firstly, parts on the instrument panel need to be dismantled, and then the air conditioner filter element is taken out for cleaning, so that the operation is complex.

Disclosure of Invention

The embodiment of the application provides an air conditioner air duct assembly, air conditioner and vehicle, can solve clean filter core complex operation's problem.

In a first aspect, an embodiment of the application provides an air conditioner air duct assembly, including bellows, filter core, first fan and second fan, the filter core set up in first wind gap department of bellows for filter by the air current that first wind gap flowed in, first fan with the second fan all set up in the inner chamber of bellows, first fan is used for making the air current after filtering by the second wind gap of bellows blows off, the second fan is used for making by the air current that the second wind gap flowed in blows to the filter core, makes dust on the filter core breaks away from.

In a possible implementation manner of the first aspect, the air-conditioning air duct assembly further includes a partition plate and a shielding component, the partition plate and the shielding component are both disposed in an inner cavity of the air box, the partition plate divides the inner cavity of the air box into a first inner cavity and a second inner cavity, the first fan is disposed in the first inner cavity, and the second fan is disposed in the second inner cavity; the shielding component can move between a first position and a second position, when the shielding component is located at the first position, the shielding component shields the first inner cavity, and when the shielding component is located at the second position, the shielding component shields the second inner cavity.

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

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

the control unit is used for controlling the first fan and the second fan to work, and the air pressure acquisition unit is used for acquiring an air pressure value of the air outlet side of the filter element and transmitting the air pressure value to the control unit; when the air pressure value is smaller than the preset air pressure value, the control unit is further used for sending warning information for indicating the cleaning of the filter element.

In a possible implementation manner of the first aspect, when the air pressure value is smaller than a preset air pressure value, the control unit is further configured to control the second fan to blow air to the filter element within a preset time period, so that dust on the filter element is separated.

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

In a possible implementation manner of the first aspect, the air conditioner air duct assembly further includes a humidity acquisition unit, the humidity acquisition unit is disposed near an air inlet side of the filter element, and the humidity acquisition unit is electrically connected to the control unit;

the humidity acquisition unit is used for acquiring a humidity value of the air inlet side of the filter element and transmitting the humidity value to the control unit; when the humidity value is larger than the preset humidity value, the control unit is further used for controlling the first fan to stop working.

In a possible implementation manner of the first aspect, the control unit includes a controller, an instruction input device, and an alarm, and the controller is electrically connected to the instruction input device, the alarm, the air pressure acquisition unit, the first fan, and the second fan, respectively;

the instruction input device is used for sending a control instruction to the controller, and the controller is used for controlling the first fan and the second fan to work according to the control instruction; when the air pressure value is smaller than the preset air pressure value, the controller is used for controlling the warning indicator to send warning information indicating that the filter element is cleaned.

In a second aspect, an embodiment of the present application provides an air conditioner, including the air conditioning duct assembly of any one of the first aspects.

In a third aspect, the present application provides a vehicle including the air conditioner of the second aspect.

Compared with the prior art, the embodiment of the application has the advantages that:

the embodiment of the application provides an air conditioner air duct assembly, including bellows, filter core, first fan and second fan. When the air conditioner is started, the first fan is controlled to work, the second fan does not work, the air flow enters from the first air opening of the air box at the moment, the air flow can be filtered by the filter element, the filtered air flow is blown out from the second air opening of the air box, and air circulation inside and outside the vehicle cab is achieved. When the dust on the filter element is too much, the second fan can be controlled to work, the first fan does not work, the air flow flowing in from the second air port of the air box blows to the filter element at the moment, so that the dust on the filter element is separated, the automatic cleaning effect of the filter element is realized, parts on a vehicle instrument desk do not need to be detached, and the convenience of cleaning the filter element is improved.

It is understood that, the beneficial effects of the second aspect and the third aspect can be referred to the related description of the first aspect, and are not described herein again.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of an air conditioning duct assembly according to an embodiment of the present disclosure;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a perspective view of an air conditioning duct assembly according to an embodiment of the present application;

FIG. 4 is a schematic view of an internal structure of an air conditioning duct assembly when a shielding assembly is located at a first position according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of an internal structure of an air conditioning duct assembly when a shielding assembly is located at a second position according to an embodiment of the present disclosure;

FIG. 6 is an exploded view of an air conditioning duct assembly according to an embodiment of the present application;

fig. 7 is a schematic block diagram of an air conditioning duct assembly according to an embodiment of the present application.

In the figure: 100. an air box; 101. a first tuyere; 102. a second tuyere; 200. a filter element; 300. a first fan; 400. a second fan; 500. a partition plate; 600. a shielding component; 601. a shielding plate; 602. a motor; 700. an air pressure acquisition unit; 800. a humidity acquisition unit; 900. a control unit.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

As used in the specification and appended claims, the term "if" may be interpreted contextually as "when 8230that" or "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing a relative importance or importance.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

The air conditioner filter element is an important component of a vehicle air conditioner, and because the use environment of the vehicle air conditioner is severe, the filter element of the vehicle air conditioner is always stained with dust. Aiming at the existing vehicle, when the dust on the air conditioner filter element is too much, parts on the instrument panel need to be firstly removed, and then the air conditioner filter element is taken out for cleaning, so that the problem of complicated filter element cleaning steps is caused.

Based on the above problem, the embodiment of the application provides an air conditioner air duct assembly, including bellows, filter core, first fan and second fan. When the air conditioner is started, the first fan is controlled to work, the second fan does not work, the air flow enters from the first air opening of the air box at the moment, the air flow can be filtered by the filter element, the filtered air flow is blown out from the second air opening of the air box, and air circulation inside and outside the vehicle cab is achieved. When the dust on the filter core is too much, the second fan can be controlled to work, the first fan does not work, the air flow flowing in from the second air port of the air box blows to the filter core at the moment, the dust on the filter core is separated, the automatic cleaning effect of the filter core is realized, parts on a vehicle instrument desk do not need to be detached, and the convenience of cleaning the filter core is improved.

In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.

As shown in fig. 1 to 3, the air-conditioning duct assembly includes an air box 100, a filter element 200, a first fan 300 and a second fan 400, the filter element 200 is disposed at a first air opening 101 of the air box 100 and is used for filtering an air flow flowing in from the first air opening 101, the first fan 300 and the second fan 400 are both disposed in an inner cavity of the air box 100, the first fan 300 is used for blowing out the filtered air flow from a second air opening 102 of the air box 100, and the second fan 400 is used for blowing the air flow flowing in from the second air opening 102 to the filter element 200, so as to separate dust on the filter element 200.

Specifically, when the air conditioner air duct assembly is used, the first air opening 101 of the air box 100 is connected with an air inlet of an air conditioner, and the second air opening 102 of the air box 100 is connected with a plurality of air outlets in a vehicle cab through an air duct. When the air conditioner is normally started, the first fan 300 is controlled to work, the second fan 400 is controlled not to work, at the moment, airflow enters from the first air opening 101 of the air box 100 and is filtered by the filter element 200, and the filtered airflow is blown out from the second air opening 102 of the air box 100, so that air circulation inside and outside the vehicle cab is realized. When the dust on the filter element 200 is too much, the second fan 400 can be controlled to work, the first fan 300 does not work, and the air flow flowing in from the second air opening 102 of the air box 100 blows to the filter element 200 at the moment, so that the dust on the filter element 200 is separated, the automatic cleaning effect of the filter element 200 is realized, parts on a vehicle instrument desk do not need to be disassembled, and the cleaning convenience of the filter element 200 is improved.

It should be noted that, when the second fan 400 is turned on in the present application, besides the dust on the filter element 200 can be separated, other foreign matters on the filter element 200 can be separated from the filter element 200, so as to achieve the effect of cleaning the filter element 200.

As shown in fig. 6, the filter element 200 can be installed in the inner cavity of the air box 100, and the air inlet side of the filter element 200 is close to the first air inlet 101 of the air box 100, so as to ensure that the air flow outside the vehicle enters from the first air inlet 101 and is filtered by the filter element 200, and the filtered air flow passes through the inner cavity of the air box 100 and is blown out from the second air inlet 102 to the cab of the vehicle. The filter element 200 can also be arranged outside the air box 100, the air inlet side of the filter element 200 covers the first air inlet 101 of the air box 100, and the air flow outside the vehicle is filtered by the filter element 200, enters from the first air inlet 101, passes through the inner cavity of the air box 100, and is blown out to the cab of the vehicle from the second air inlet 102.

It should be noted that, generally, the filter element 200 includes an air inlet side and an air outlet side, and the air flow 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 realizing the filtering of the air flow by the filter element 200.

As shown in fig. 4 and 5, the air-conditioning duct assembly further includes a partition plate 500 and a shielding component 600, the partition plate 500 and the shielding component 600 are both disposed in the inner cavity of the bellows 100, the partition plate 500 divides the inner cavity of the bellows 100 into a first inner cavity and a second inner cavity, the first fan 300 is disposed in the first inner cavity, and the second fan 400 is disposed 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.

Specifically, the inner cavity of the bellows 100 is divided into a first inner cavity and a second inner cavity by the partition plate 500, the first fan 300 is disposed in the first inner cavity, and the second fan 400 is disposed in the second inner cavity, so that the first fan 300 and the second fan 400 can be separated from each other, the first fan 300 and the second fan 400 are prevented from interfering with each other, and the stability of the first fan 300 and the second fan 400 is improved.

The shutter assembly 600 is movable between a first position and a second position, and can shutter either the first lumen or the second lumen. As shown in fig. 5, when the air conditioner is turned on, the control shielding component 600 is located at the second position, the first fan 300 is controlled to work, when the second fan 400 is controlled not to work, the shielding component 600 shields the second inner cavity, the first inner cavity is respectively communicated with the first air opening 101 and the second air opening 102 of the air box 100, at the moment, under the action of the first fan 300, the air flow filtered by the filter element 200 enters from the first air opening 101, passes through the first inner cavity and is blown out from the second air opening 102, the air flow is heated or cooled through a warm air core or an evaporator in an air duct, finally, the air flow with proper temperature is blown out from a plurality of air outlets in the cockpit, and the temperature adjusting function in the cockpit is realized.

As shown in fig. 4, when the filter element 200 needs to be cleaned, the shielding assembly 600 is controlled to be located at the first position, the first fan 300 is controlled not to work, the second fan 400 is controlled to work, the shielding assembly 600 shields the first inner cavity, the second inner cavity is respectively communicated with the first air port 101 and the second air port 102 of the air box 100, at this time, under the action of the second fan 400, the air flow enters from the second air port 102 and passes through the second inner cavity to blow toward the filter element 200, so that the dust on the filter element 200 is separated, and the effect of cleaning the filter element 200 is realized.

Illustratively, the shielding assembly 600 includes a motor 602 and a shielding plate 601, the shielding plate 601 is rotatably connected to the partition 500, a shaft of the motor 602 is connected to the shielding plate 601, and the motor 602 is configured to rotate the shielding plate 601 between a first position and a second position. By controlling the forward rotation or the reverse rotation of the motor 602, the shielding plate 601 is controlled to rotate between the first position and the second position, so as to realize the automatic control of the shielding assembly 600.

As shown in fig. 7, the air conditioning duct assembly further includes a control unit 900 and an air pressure collecting unit 700, the air pressure collecting unit 700 is installed in the inner cavity of the air box 100 and is close to the air outlet side of the filter element 200, and the control unit 900 is electrically connected to the air pressure collecting unit 700, the first fan 300 and the second fan 400, respectively.

Specifically, when the vehicle needs to start the air conditioner, the control unit 900 controls the first fan 300 to work, under the action of the first fan 300, the airflow filtered by the filter element 200 enters from the first air port 101, passes through the inner cavity of the air box 100 and is blown out from the second air port 102, the temperature of the airflow is raised or lowered through a warm air core or an evaporator in an air duct, and finally the airflow at a proper temperature is blown out from a plurality of air outlets in the cockpit to realize a temperature adjusting function in the cockpit.

When the air conditioner is turned on, the air pressure collecting unit 700 is configured to collect an air pressure value at the air outlet side of the filter element 200 and transmit the air pressure value to the control unit 900. After the control unit 900 receives the air pressure value, the received air pressure value is compared with the preset air pressure value, when the air pressure value is smaller than the preset air pressure value, the situation that dust on the filter element 200 is too much is described, air flow can not pass through the filter element 200 quickly and smoothly, at the moment, the control unit 900 sends warning information for indicating to clean the filter element 200, a user knows that dust on the filter element 200 is too much after receiving the warning information, the filter element 200 is cleaned in time, and normal operation of an air conditioner is ensured. The air pressure acquisition unit 700 is arranged to monitor the cleaning state of the filter element 200, and for example, the air pressure acquisition unit 700 can be an air pressure sensor. It should be noted that, a designer may set a specific value of the preset air pressure value according to actual conditions (for example, a model of the filter element, a size of the first air inlet 101, a model of the first fan 300, and the like).

When the user receives the warning message, the user can select an appropriate time for cleaning the filter cartridge 200. When the filter element 200 is cleaned, the control unit 900 controls the second fan 400 to work, under the action of the second fan 400, air flow enters from the second air opening 102 and blows to the filter element 200 through the inner cavity of the air box 100, so that dust on the filter element 200 is separated, the effect of cleaning the filter element 200 is realized, parts on a vehicle instrument desk do not need to be detached, and the convenience of cleaning the filter element 200 is improved.

In an embodiment of the present application, when the air pressure value is smaller than the preset air pressure value, the control unit 900 is further configured to control the second blower 400 to blow air to the filter element 200 within a preset time period, so as to separate the dust on the filter element 200.

Specifically, the preset time period is a time period when the vehicle is in a starting state and the air conditioner is in an unopened state, and the starting time and the time duration of the preset time period may be set according to actual needs, for example, when the starting time of the preset time period is set to be 3 minutes, 5 minutes or 10 minutes when the vehicle is started next time and the air conditioner is in an unopened state. When the air pressure value is smaller than the preset air pressure value, it indicates that the dust on the filter element 200 is excessive, and the control unit 900 controls the second fan 400 to blow air to the filter element 200 within a preset time period, so that the dust on the filter element 200 is separated, and the filter element 200 is automatically cleaned without any operation of a user.

When the control unit 900 controls the second fan 400 to work, the control unit 900 may also control the rotation speed of the second fan 400 according to the air pressure value, and when the air pressure value is smaller, it indicates that the more dust on the filter element 200 is, the higher the rotation speed of the second fan 400 is controlled by the control unit 900; when the air pressure value is larger, which indicates that the dust on the filter element 200 is less, the control unit 900 controls the rotation speed of the second fan 400 to be lower, but not lower than the preset rotation speed. The energy consumption is reduced while ensuring effective cleaning of the filter element 200.

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

Specifically, the humidity collection unit 800 is configured to collect a humidity value of the air intake 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, the humidity of the air outside the vehicle is relatively high, and if the air flow passes through the filter element 200 at the moment, the filter element 200 is easily wetted, so that dust and foreign matters are more easily accumulated on the filter element 200, and the filter element 200 is blocked. At this time, the control unit 900 controls the first fan 300 to stop working, the air flow 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 model, so as to prevent the dust and foreign matters on the filter element 200 from being accumulated.

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

Specifically, the command input unit is configured to send a control command to the controller, and the controller is configured to control the first fan 300 and the second fan 400 to operate according to the control command. For example, the command input device may be a keyboard, a touch screen or a voice receiver, and the user may issue a specific control command through the command input device, and then the command input device transmits the control command to the controller. For example, when a user sends an air-conditioning-on command to the controller through the command input unit, the controller controls the first fan 300 to operate according to the air-conditioning-on command, at this time, the air flow enters from the first air opening 101 of the air box 100, and is filtered by the filter element 200, and the filtered air flow is blown out from the second air opening 102 of the air box 100, so that air circulation inside and outside the vehicle cabin is realized. When a user sends a cleaning filter element 200 instruction to the controller through the instruction input device, the control unit 900 controls the second fan 400 to work according to the cleaning filter element 200 instruction, at the moment, the air flow flowing in from the second air port 102 of the air box 100 blows towards the filter element 200, so that dust on the filter element 200 is separated, the automatic cleaning effect of the filter element 200 is realized, parts on a vehicle instrument desk do not need to be detached, and the cleaning convenience of the filter element 200 is improved.

When the air pressure value is smaller than the preset air pressure value, it indicates that the filter element 200 needs to be cleaned, and at the moment, the controller is used for controlling the alarm to send alarm information indicating that the filter element 200 is cleaned, so that the function of informing a user is achieved. For example, the warning indicator may be an indicator light or a display in the cab. After the user receives the warning information, the user knows that the filter element 200 needs to be cleaned, the user sends a filter element cleaning instruction to the controller through the instruction input device, the control unit 900 controls the second fan 400 to work according to the filter element cleaning instruction, at the moment, the air flow flowing in from the second air opening 102 of the air box 100 blows towards the filter element 200, so that dust on the filter element 200 is separated, and the automatic cleaning effect of the filter element 200 is achieved.

The application also provides an air conditioner, including the aforesaid air conditioner wind channel assembly, have filter core self-cleaning function, need not dismantle the spare part on the vehicle instrument desk, improved the clear convenience of filter core. The specific working principle refers to the description of the air conditioner air duct assembly, and is not described in detail herein.

The application still provides a vehicle, including the aforesaid the air conditioner, have filter core self-cleaning function, need not dismantle spare part on the vehicle instrument desk, improved the clear convenience of filter core. The specific working principle refers to the description of the air conditioner air duct assembly, and is not described in detail herein.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. The utility model provides an air conditioner wind channel assembly, its characterized in that, includes bellows, filter core, first fan and second fan, the filter core set up in the first wind gap department of bellows for filter by the air current that first wind gap flowed in, first fan with the second fan all set up in the inner chamber of bellows, first fan is used for making the air current after filtering by the second wind gap of bellows blows out, the second fan is used for making by the air current that the second wind gap flowed in blows to the filter core, makes dust on the filter core breaks away from.

2. The air conditioning duct assembly of claim 1, further comprising a partition plate and a shielding component, both disposed in the inner cavity of the bellows, the partition plate dividing the inner cavity of the bellows into a first inner cavity and a second inner cavity, the first fan disposed in the first inner cavity and the second fan disposed in the second inner cavity; the shielding component can move between a first position and a second position, when the shielding component is located at the first position, the shielding component shields the first inner cavity, and when the shielding component is located at the second position, the shielding component shields the second inner cavity.

3. The air conditioning duct assembly of claim 2, wherein the shielding assembly comprises a motor and a shielding plate, the shielding plate is rotatably connected to the partition, a shaft of the motor is connected to the shielding plate, and the motor is configured to drive the shielding plate to rotate between the first position and the second position.

4. The air conditioning duct assembly of any one of claims 1-3, further comprising a control unit and an air pressure collecting unit, wherein the air pressure collecting unit is installed in the inner cavity of the air box and is close to the air outlet side of the filter element, and the control unit is electrically connected with the air pressure collecting unit, the first fan and the second fan respectively;

the control unit is used for controlling the first fan and the second fan to work, and the air pressure acquisition unit is used for acquiring an air pressure value at the air outlet side of the filter element and transmitting the air pressure value to the control unit; when the air pressure value is smaller than the preset air pressure value, the control unit is further used for sending warning information for indicating the cleaning of the filter element.

5. The air conditioning duct assembly according to claim 4, wherein the control unit is further configured to control the second blower to blow air to the filter element within a preset time period when the air pressure value is smaller than a preset air pressure value, so as to separate dust on the filter element.

6. The air conditioning duct assembly according to claim 4, wherein the control unit is configured to control a rotation speed of the second fan according to the air pressure value when the control unit controls the second fan to operate.

7. The air conditioning duct assembly of claim 4, further comprising a humidity acquisition unit disposed near an air inlet side of the filter element, the humidity acquisition unit being electrically connected to the control unit;

the humidity acquisition unit is used for acquiring a humidity value of the air inlet side of the filter element and transmitting the humidity value to the control unit; and when the humidity value is larger than a preset humidity value, the control unit is also used for controlling the first fan to stop working.

8. The air conditioner air duct assembly according to claim 4, wherein the control unit comprises a controller, a command input device and an alarm, and the controller is electrically connected with the command input device, the alarm, the air pressure collecting unit, the first fan and the second fan respectively;

the instruction input device is used for sending a control instruction to the controller, and the controller is used for controlling the first fan and the second fan to work according to the control instruction; when the air pressure value is smaller than the preset air pressure value, the controller is used for controlling the warning indicator to send warning information indicating that the filter element is cleaned.

9. An air conditioner comprising the air conditioning duct assembly of any one of claims 1-8.

10. A vehicle characterized by comprising the air conditioner of claim 9.

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