Vehicle-mounted fragrance device integrated with PM2.5 module

By integrating a PM2.5 module into the car fragrance device, the problem of air quality monitoring in the car is solved. Users can decide the operation mode according to the PM2.5 concentration value, reduce health risks and improve user experience.

CN223340417UActive Publication Date: 2025-09-16AIR INT THERMAL SYST R&D (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202422985308.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-09-16
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

Existing car fragrance devices are unable to monitor the air quality inside the car, causing the PM2.5 index to exceed the standard and affecting the health of users.

Method used

A vehicle-mounted fragrance device with an integrated PM2.5 module is designed, which includes a fragrance module and a PM2.5 module. A fragrance generator is installed in the main channel, and a PM2.5 module is installed in the bypass channel. They share a common blower. The PM2.5 module detects air quality and displays the concentration value.

Benefits of technology

The air quality inside the car is monitored, and users can decide the ventilation or purification method based on the PM2.5 concentration, reducing health risks and improving user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile parts, in particular to a vehicle-mounted fragrance device integrated with a PM2.5 module. The vehicle-mounted fragrance device integrated with the PM2.5 module comprises a fragrance module and the PM2.5 module. The fragrance module comprises an air blower, an upper shell and a lower shell, the upper shell and the lower shell are buckled with each other, a main channel and a bypass channel which are isolated from each other are defined by the upper shell and the lower shell, the main channel and the bypass channel are arranged in parallel, a fragrance generator is arranged in the main channel, and the air blower is located on one side of the main channel. The PM2.5 module is arranged in the bypass channel, and the PM2.5 module is configured to detect the air quality in the vehicle; an air inlet is formed in the PM2.5 module, a first air outlet is formed in the lower shell, and an air blowing opening of the air blower communicates with the first air outlet through the air inlet. According to the vehicle-mounted fragrance device integrated with the PM2.5 module, the air quality in a vehicle can be monitored, the experience feeling of a user is improved, and the health risk is reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, and in particular to a vehicle-mounted fragrance device integrated with a PM2.5 module. Background Art

[0002] With the rapid development of the automotive industry, fragrance devices, once exclusive to high-end models, are becoming increasingly common. The use of in-car fragrances releases larger particulate matter, which can cause PM2.5 levels to exceed the standard. Prolonged exposure to excessive PM2.5 levels in a vehicle can damage the respiratory tract, leading to symptoms such as headaches and dizziness. Over time, this can also trigger illnesses such as asthma and bronchitis, and even pose a risk of cancer.

[0003] At present, most car fragrance devices can only provide fragrance function and cannot monitor the air quality in the car, thereby reducing the user experience and posing certain risks to the user's physical health.

[0004] Therefore, it is urgent to design a vehicle-mounted fragrance device with an integrated PM2.5 module to solve the above technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a car-mounted fragrance device with an integrated PM2.5 module, which can monitor the air quality in the car, improve the user experience and reduce health risks.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a vehicle-mounted fragrance device integrated with a PM2.5 module, comprising:

[0008] A fragrance module, comprising a blower, an upper shell and a lower shell that interlock with each other, the upper shell and the lower shell enclosing a main channel and a bypass channel that are isolated from each other, and the main channel and the bypass channel are arranged in parallel. A fragrance generator is provided in the main channel, and the blower is located on one side of the main channel;

[0009] A PM2.5 module is provided in the bypass channel, and the PM2.5 module is configured to detect the air quality in the vehicle; an air inlet is provided on the PM2.5 module, and a first air outlet is provided on the lower shell, and the air outlet of the blower is connected to the first air outlet through the air inlet.

[0010] As an optional technical solution for a vehicle-mounted fragrance device with an integrated PM2.5 module, the PM2.5 module includes a shell and a laser emitter assembly that are interconnected. There is an air duct in the shell, and the air duct is connected to the air inlet and the first air outlet. The laser emitter assembly can detect the air quality in the air duct.

[0011] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, the housing includes a first housing and a second housing, the first housing and the second housing being snap-fitted and connected to form the air duct;

[0012] The laser emitter assembly includes a third housing, a laser emitter, and a light sensor. The laser emitter and the light sensor are both disposed in the third housing. A through hole is formed in the third housing, the through hole facing the air duct, the laser emitter is disposed facing the through hole, and the light sensor is located at the through hole.

[0013] The laser beam emitted by the laser emitter can be irradiated into the air duct, and the particulate matter in the air duct can scatter the laser beam. The light sensor is configured to capture the scattered laser beam.

[0014] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, a first deflector is provided in the air duct, the first deflector is connected to the inner wall of the air duct, and the first deflector is located directly above the through hole;

[0015] The first guide plate has a first guide surface, and the first guide surface is inclined in a direction away from the through hole.

[0016] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, a serrated protrusion is provided on the inner wall of the air duct, and the serrated protrusion is arranged toward the first guide surface. The serrated protrusion is configured to cause particulate matter to flow around.

[0017] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, the first guide surface is set to be a plane.

[0018] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, a second guide plate is provided in the air duct, the second guide plate is connected to the inner wall of the air duct, the second guide plate extends toward the first air outlet, and the second guide plate is located downstream of the first guide plate.

[0019] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, the second guide surface is configured as a curved surface.

[0020] As an optional technical solution for an in-vehicle fragrance device integrating a PM2.5 module, the PM2.5 module includes a temperature sensor, which is arranged at the air inlet.

[0021] As an optional technical solution for an in-vehicle fragrance device with an integrated PM2.5 module, a driving component is provided in the lower shell, a gate valve is provided at one end of the main channel, the driving component is connected to the gate valve drive, and the driving component can control the opening and closing of the gate valve.

[0022] The beneficial effects of the present invention include at least:

[0023] The utility model provides a vehicle-mounted fragrance device integrated with a PM2.5 module, comprising a fragrance module and a PM2.5 module. The fragrance module comprises a blower, an upper shell and a lower shell that interlock with each other, the upper shell and the lower shell being arranged to form a main channel and a bypass channel that are isolated from each other, and the main channel and the bypass channel are arranged in parallel. A fragrance generator is arranged in the main channel, and the blower is located on one side of the main channel. The PM2.5 module is arranged in the bypass channel and is configured to detect the air quality in the vehicle. The PM2.5 module is provided with an air inlet, and the lower shell is provided with a first air outlet. The air outlet of the blower is connected to the first air outlet through the air inlet.

[0024] As described above, the main channel and bypass channel in the vehicle-mounted fragrance device with integrated PM2.5 module are isolated from each other. A fragrance generator is set in the main channel, and a PM2.5 module is set in the bypass channel, so that the main channel and the bypass channel can work independently without affecting each other. The blower is set on one side of the main channel and the bypass channel arranged in parallel, so that part of the wind blown out by the blower can enter the main channel and the other part can enter the bypass channel. In other words, the fragrance generator and the PM2.5 module share one blower, thereby reducing the number of blowers, simplifying the structure, and improving the integration. The PM2.5 module can detect the air (containing particulate matter) flowing through to detect the concentration of particulate matter in the air, and then monitor the air quality in the car. Users can decide whether to open the window for ventilation or perform other operations to purify the air quality in the car based on the PM2.5 concentration value, thereby improving the user experience and reducing health risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of a vehicle-mounted fragrance device with an integrated PM2.5 module provided by an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the structure of a vehicle-mounted fragrance device (upper housing not shown) with an integrated PM2.5 module provided by an embodiment of the present invention;

[0028] Figure 3 Schematic diagram of the structure of a vehicle-mounted fragrance device with an integrated PM2.5 module (the upper and lower housings are not shown) provided by an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the PM2.5 module provided by the embodiment of the present utility model;

[0030] Figure 5 5 module (the first shell is not shown) provided in an embodiment of the present invention.

[0031] Reference numerals

[0032] 100, fragrance module; 110, blower; 120, upper housing; 130, lower housing; 1301, first air outlet; 140, main channel; 150, bypass channel;

[0033] 200, first housing; 210, second air outlet; 300, second housing; 310, air inlet; 320, air duct; 330, first guide plate; 3301, first guide surface; 340, serrated protrusion; 350, second guide plate; 3501, second guide surface; 360, temperature sensor;

[0034] 400, laser emitter assembly; 410, third housing; 4101, through hole; 420, laser emitter; 430, light sensor;

[0035] 500. Drive component. DETAILED DESCRIPTION

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0043] This embodiment provides a vehicle-mounted fragrance device integrated with a PM2.5 module, which can monitor the air quality in the vehicle, improve the user experience, and reduce health risks.

[0044] like Figure 1-Figure 3 As shown, the vehicle-mounted fragrance device with an integrated PM2.5 module primarily comprises a fragrance module 100 and a PM2.5 module. The fragrance module 100 comprises a blower 110, an upper housing 120, and a lower housing 130 that interlock. The upper and lower housings 120 and 130 enclose a main channel 140 and a bypass channel 150, which are isolated from each other. The main channel 140 and the bypass channel 150 are arranged in parallel. A fragrance generator is located within the main channel 140, and the blower 110 is located on one side of the main channel 140. The PM2.5 module is disposed within the bypass channel 150 and is configured to detect the air quality within the vehicle. The PM2.5 module is provided with an air inlet 310, and the lower housing 130 is provided with a first air outlet 1301. The air outlet of the blower 110 communicates with the first air outlet 1301 through the air inlet 310. The air outlet of the blower 110 is connected to the main channel 140 .

[0045] Based on the above design, in this embodiment, the main channel 140 and bypass channel 150 of the vehicle-mounted fragrance device with an integrated PM2.5 module are isolated from each other. The main channel 140 is equipped with a fragrance generator, and the bypass channel 150 is equipped with a PM2.5 module. This allows the main channel 140 and the bypass channel 150 to operate independently without interfering with each other. The blower 110 is positioned on either side of the parallel main channel 140 and bypass channel 150. This allows part of the air blown by the blower 110 to enter the main channel 140 and part to enter the bypass channel 150. In other words, the fragrance generator and the PM2.5 module share a single blower 110, thereby reducing the number of blowers 110, simplifying the structure, and improving the integration. The PM2.5 module can detect the passing air (containing particulate matter) to detect the concentration of particulate matter in the air, and then monitor the air quality in the car. Users can decide whether to open windows for ventilation or perform other operations to purify the air quality in the car based on the PM2.5 concentration value, thereby improving the user experience and reducing health risks.

[0046] It should be noted that the blower 110 is connected to the interior environment of the vehicle, so the wind blown out of the air outlet of the blower 110 is the air inside the vehicle (the air contains particulate matter), so that the particulate matter concentration data detected by the PM2.5 module can accurately reflect the quality of the interior environment of the vehicle.

[0047] like Figure 1-Figure 3 As shown, in this embodiment, a drive assembly 500 is provided in the lower shell 130, and a gate valve (not shown in the figure) is provided at one end of the main channel 140. The drive assembly 500 is connected to the gate valve drive, and the drive assembly 500 can control the opening and closing of the gate valve. In this way, the drive assembly 500 can independently control the on-off of the main channel 140. When the user does not need the fragrance function of the fragrance module 100, the drive assembly 500 can drive the gate valve to close to block the main channel 140. At this time, the wind from the blower 110 will only flow to the PM2.5 module to enable the PM2.5 module to detect the air quality in the car. In other words, when the user does not use the fragrance function of the fragrance module 100, the vehicle-mounted fragrance device integrated with the PM2.5 module can also detect the air quality in the car, thereby improving the flexibility of use of the vehicle-mounted fragrance device integrated with the PM2.5 module and improving the user experience.

[0048] Optionally, the driving component 500 in this embodiment can be configured as a motor, which controls the opening and closing of the gate valve by rotating forward and reverse.

[0049] like Figure 2 、 Figure 4-Figure 5As shown, in this embodiment, the PM2.5 module includes a shell and a laser emitter assembly 400 that are interconnected. There is an air duct 320 in the shell, and the air duct 320 is connected to the air inlet 310 and the first air outlet 1301. The laser emitter assembly 400 can detect the air quality in the air duct 320.

[0050] Specifically, the housing in this embodiment includes a first housing 200 and a second housing 300. The first housing 200 and the second housing 300 are fastened together to form an air duct 320. The laser emitter assembly 400 includes a third housing 410, a laser emitter 420, and a light sensor 430. The laser emitter 420 and the light sensor 430 are both disposed within the third housing 410. The third housing 410 is provided with a through hole 4101, which faces the air duct 320. The laser emitter 420 is disposed facing the through hole 4101, and the light sensor 430 is located at the through hole 4101. The laser beam emitted by the laser emitter 420 can irradiate the air duct 320. Particulate matter within the air duct 320 can scatter the laser beam. The light sensor 430 is configured to capture the scattered laser beam. That is to say, the laser beam emitted by the laser emitter 420 can pass through the through hole 4101 and irradiate the air duct 320. Due to the presence of particulate matter in the air in the air duct 320, the particulate matter can cause the laser beam to be scattered or diffusely reflected. These scattered or diffusely reflected laser beams can be captured by the light sensor 430. Finally, the light sensor can transmit the signal to the vehicle control computer, which is converted into the concentration value of PM2.5 particulate matter through signal processing and finally displayed on the vehicle screen for the user to read.

[0051] Optionally, the laser emitter 420 and the light sensor 430 in this embodiment are both components in the prior art, and therefore, their working principles and specific structures are not described in detail in this embodiment.

[0052] For example, the laser emitter 420 may be configured as a common infrared laser, and the light sensor 430 may be configured as a diffuse reflection sensor.

[0053] like Figure 4-Figure 5 As shown, in this embodiment, a first guide plate 330 is provided in the air duct 320, the first guide plate 330 is connected to the inner wall of the air duct 320, and the first guide plate 330 is located directly above the through hole 4101; the first guide plate 330 has a first guide surface 3301, and the first guide surface 3301 is inclined in a direction away from the through hole 4101.

[0054] Furthermore, a sawtooth protrusion 340 is provided on the inner wall of the air duct 320 , and the sawtooth protrusion 340 is arranged toward the first guide surface 3301 . The sawtooth protrusion 340 is configured to cause the particulate matter to flow around.

[0055] The setting of the first guide plate 330 can guide the particulate matter in the air duct 320 to avoid the formation of a flow dead zone in the air duct 320. The particulate matter can be guided by the first guide plate 330 to the serrated protrusion 340, so that the serrated protrusion 340 circumvents the particulate matter, thereby extending the residence time of the particulate matter at the through hole 4101, thereby enhancing the scattering effect of the particulate matter on the laser beam, and improving the sensitivity of the light sensor 430 to capture the scattered laser beam, thereby ensuring the accuracy of air quality detection.

[0056] Optionally, the first guide surface 3301 in this embodiment is set to a plane to improve the guiding effect on particulate matter and reduce the residual phenomenon of particulate matter on the first guide plate 330.

[0057] Please continue to refer to Figure 4-Figure 5 In this embodiment, a second guide plate 350 is disposed within the air duct 320. The second guide plate 350 is connected to the inner wall of the air duct 320 and extends toward the first air outlet 1301. The second guide plate 350 is located downstream of the first guide plate 330. This improves the guiding effect of the second guide plate 350 on particulate matter, allowing particulate matter in the air duct 320 that has already scattered the laser beam to flow out of the air duct 320 as much as possible, thereby avoiding the formation of a flow dead zone within the air duct 320.

[0058] Preferably, the second guide surface 3501 is configured as a curved surface to improve the efficiency of particle flow and reduce abnormal noises such as vibration.

[0059] Furthermore, in this embodiment, a second air outlet 210 is provided on the first shell 200, and the two ends of the second air outlet 210 are respectively connected to the air duct 320 and the first air outlet 1301, so that the air blown out by the blower 110 can enter the air duct 320 through the air inlet 310, and then flow from the second air outlet 210 to the first air outlet 1301 and then be discharged.

[0060] like Figure 5 As shown, in this embodiment, the PM2.5 module includes a temperature sensor 360, which is located at the air inlet 310. The temperature sensor 360 is used to detect the temperature of the air flowing into the air duct 320. The temperature sensor 360 is connected to the vehicle control computer signal. After signal processing, the temperature value is converted into a temperature value and displayed on the vehicle screen for the user to read.

[0061] Optionally, the temperature sensor 360 in this embodiment can be configured as a thermistor sensor or a thermocouple sensor commonly available on the market.

[0062] Obviously, the above are only preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

[0063] Note that throughout this specification, references to terms such as "some embodiments" and "other embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Claims

1. A car fragrance device with an integrated PM2.5 module, characterized in that: include: A fragrance module (100) comprising a blower (110), an upper shell (120) and a lower shell (130) that are interlocked, the upper shell (120) and the lower shell (130) enclosing a main channel (140) and a bypass channel (150) that are isolated from each other, the main channel (140) and the bypass channel (150) being arranged in parallel, a fragrance generator being arranged in the main channel (140), and the blower (110) being located on one side of the main channel (140); A PM2.5 module is provided in the bypass channel (150), and the PM2.5 module is configured to detect the air quality in the vehicle; an air inlet (310) is provided on the PM2.5 module, and a first air outlet (1301) is provided on the lower shell (130), and an air outlet of the blower (110) is connected to the first air outlet (1301) through the air inlet (310).

2. The vehicle-mounted fragrance device with integrated PM2.5 module according to claim 1, characterized in that: The PM2.5 module includes a shell and a laser emitter assembly (400), wherein the laser emitter assembly (400) is connected to the shell, wherein an air duct (320) is provided in the shell, wherein the air duct (320) is connected to both the air inlet (310) and the first air outlet (1301), and wherein the laser emitter assembly (400) is capable of detecting the air quality in the air duct (320).

3. The vehicle-mounted fragrance device integrated with a PM2.5 module according to claim 2, characterized in that: The housing comprises a first housing (200) and a second housing (300), wherein the first housing (200) and the second housing (300) are snap-fitted and connected to form the air duct (320); The laser emitter assembly (400) comprises a third housing (410), a laser emitter (420) and a light sensor (430), wherein the laser emitter (420) and the light sensor (430) are both arranged in the third housing (410), a through hole (4101) is provided on the third housing (410), the through hole (4101) is directly opposite to the air duct (320), the laser emitter (420) is arranged directly opposite to the through hole (4101), and the light sensor (430) is located at the through hole (4101); The laser beam emitted by the laser emitter (420) can be irradiated into the air duct (320), and particles in the air duct (320) can cause the laser beam to be scattered, and the light sensor (430) is configured to capture the scattered laser beam.

4. The vehicle-mounted fragrance device with integrated PM2.5 module according to claim 3, characterized in that: A first guide plate (330) is provided in the air duct (320), the first guide plate (330) is connected to the inner wall of the air duct (320), and the first guide plate (330) is located directly above the through hole (4101); The first guide plate (330) has a first guide surface (3301), and the first guide surface (3301) is inclined in a direction away from the through hole (4101).

5. The vehicle-mounted fragrance device integrated with a PM2.5 module according to claim 4, characterized in that: A sawtooth protrusion (340) is provided on the inner wall of the air duct (320), and the sawtooth protrusion (340) is arranged toward the first guide surface (3301). The sawtooth protrusion (340) is configured to cause particulate matter to flow around.

6. The vehicle-mounted fragrance device integrated with a PM2.5 module according to claim 4, characterized in that: The first guide surface (3301) is configured as a plane.

7. The vehicle-mounted fragrance device integrated with a PM2.5 module according to claim 4, characterized in that: A second guide plate (350) is provided in the air duct (320), the second guide plate (350) is connected to the inner wall of the air duct (320), the second guide plate (350) extends toward the first air outlet (1301), and the second guide plate (350) is located downstream of the first guide plate (330).

8. The vehicle-mounted fragrance device integrated with a PM2.5 module according to claim 7, characterized in that: The second guide plate (350) has a second guide surface (3501), and the second guide surface (3501) is configured as a curved surface.

9. The vehicle-mounted fragrance device integrated with a PM2.5 module according to any one of claims 1 to 8, characterized in that: The PM2.5 module includes a temperature sensor (360), and the temperature sensor (360) is arranged at the air inlet (310).

10. The vehicle-mounted fragrance device integrated with a PM2.5 module according to any one of claims 1 to 8, characterized in that: A driving assembly (500) is provided in the lower shell (130), a gate valve is provided at one end of the main channel (140), the driving assembly (500) is drivingly connected to the gate valve, and the driving assembly (500) can control the opening and closing of the gate valve.