Fragrance switching mechanism, fragrance device, and vehicle

Abstract

The application relates to a fragrance switching mechanism, a fragrance device and a vehicle. The fragrance switching mechanism comprises a fragrance dividing component, a fragrance selecting switching piece and a driving component. The fragrance dividing component is internally provided with a fragrance channel. The fragrance selecting switching piece is internally provided with a fragrance dispersing channel, and the fragrance selecting switching piece has a first position for moving relative to the fragrance dividing component to make the fragrance dispersing channel communicate with the fragrance channel, and a second position for making the fragrance dispersing channel and the fragrance channel be isolated from each other. The fragrance selecting switching piece is provided with a light signal reflecting part which is used for reflecting at least a light signal to determine the relative position of the fragrance selecting switching piece and the fragrance channel. The driving component is configured to drive the fragrance selecting switching piece to move according to the light signal to switch between the first position and the second position. Through the technical scheme, the technical problem that the position of the fragrance switching pipe cannot be detected in the related art can be solved.

Description

Technical Field

[0001] This application relates to the field of transportation technology, and in particular to a fragrance switching mechanism, fragrance device and vehicle. Background Technology

[0002] Car air fresheners improve air quality and enhance the driving experience by releasing fragrances into the vehicle. Different scents within the air freshener emit different aromas. Currently, when switching scents, a motor drives a rotating shaft via gears. This shaft rotates a cam that strikes a movable bracket, opening the fragrance channel and allowing the scent to diffuse into the car. However, the impact of the cam on the movable bracket and the motor's repositioning of the shaft after stalling generate considerable noise.

[0003] In related technologies, to reduce the operating noise of in-vehicle fragrance devices, a fragrance switching tube is installed. A motor directly drives the fragrance switching tube to rotate, thereby opening different fragrance diffusion channels. However, these technologies cannot detect the position of the fragrance switching tube. Utility Model Content

[0004] This application provides a fragrance switching mechanism, a fragrance device, and a vehicle to solve the technical problem that related technologies cannot detect the position of the fragrance switching tube.

[0005] To achieve the above objectives, according to a first aspect of this application, a fragrance switching mechanism is provided, comprising:

[0006] The fragrance dispensing component has a fragrance channel inside;

[0007] A fragrance selection switch is provided, wherein the fragrance selection switch is provided with a fragrance dispersing channel, the fragrance selection switch has a first position that moves relative to the fragrance dispersing component to connect the fragrance dispersing channel with the fragrance channel, and a second position that isolates the fragrance dispersing channel from the fragrance channel; the fragrance selection switch is provided with a light signal reflecting part, the light signal reflecting part is at least used to reflect light signals to determine the relative position of the fragrance selection switch and the fragrance channel;

[0008] A driving component configured to drive the fragrance selector to move in accordance with the optical signal to switch between the first position and the second position.

[0009] Optionally, the fragrance channels include N channels, which are located outside the fragrance selection switch, where N is a natural number.

[0010] The optical signal reflecting part includes at least N+1 parts, wherein:

[0011] N light signal reflecting units are arranged one-to-one with N fragrance channels. The light signal reflecting unit corresponding to the fragrance channel is used to determine the relative position of the fragrance channel and the fragrance selection switch, so as to enable the driving component to drive the fragrance selection switch to switch to the first position connected to the fragrance channel.

[0012] Another of the light signal reflecting units is used to determine the relative position of the fragrance selection switcher and each of the fragrance channels, so as to enable the driving component to drive the fragrance selection switcher to switch to the second position.

[0013] Optionally, N+1 of the optical signal reflecting parts are arranged continuously or at intervals along the outer periphery of the fragrance switching element.

[0014] Optionally, the lengths of the optical signal reflecting portions are different along the circumference of the fragrance switching component.

[0015] Optionally, the optical signal reflecting part includes a white coating or a reflective surface with a predetermined roughness.

[0016] Optionally, the outer periphery of the fragrance selection switch is provided with an annular concave-convex portion, and the light signal reflecting portion is disposed on the protruding part of the annular concave-convex portion.

[0017] Optionally, the fragrance selection switch includes a cylindrical structure, the fragrance dispersing channel is provided axially on the cylindrical structure, the fragrance channel is located on the outer periphery of the fragrance dispersing channel, and a connection port for communicating with the fragrance dispersing channel is provided on the outer periphery sidewall of the cylindrical structure;

[0018] The fragrance switching component rotates about its own axis to switch between the first position and the second position.

[0019] Optionally, the optical signal reflecting part is disposed on the end face of the cylindrical structure.

[0020] Optionally, the driving component includes a motor, which is disposed at the end of the cylindrical structure and coaxially connected to the cylindrical structure.

[0021] Optionally, the fragrance dispensing component is provided with an installation hole, the fragrance channel is connected to the installation hole, the fragrance selection switch is rotatably disposed in the installation hole, and when the fragrance selection switch is in the first position, the connection port is connected to the fragrance channel through the installation hole.

[0022] Optionally, the fragrance channel includes an air inlet section and an air outlet section, the fragrance channel includes an air inlet and an air outlet, the air inlet section is connected to the fragrance channel through the air inlet, and the fragrance channel is connected to the air outlet section through the air outlet.

[0023] Optionally, the fragrance dispensing component is further provided with a fragrance exhaust channel, which is connected to the side of the air outlet section away from the air outlet along the extension direction of the air outlet section.

[0024] Optionally, the fragrance switching mechanism further includes a light signal transmitting / receiving unit and a control unit. The control unit is electrically connected to the light signal transmitting / receiving unit. The light signal transmitting / receiving unit is at least used to receive the light signal reflected by the light signal reflecting unit and transmit the light signal to the control unit. The control unit determines the relative position of the fragrance switching component and the fragrance channel based on the light signal, thereby controlling the driving component to drive the fragrance switching component to move.

[0025] Optionally, the driving component, the optical signal transmitting / receiving unit, and the control unit are all disposed on the circuit board, and the optical signal transmitting / receiving unit is disposed opposite to the optical signal reflecting unit.

[0026] Optionally, the optical signal transmitting / receiving unit includes a photoelectric sensor.

[0027] Optionally, the fragrance channel is provided with a receiving cavity, which is at least used to hold the fragrance component.

[0028] According to a second aspect of this application, a fragrance device is provided, the fragrance device including a fragrance element and the above-described fragrance switching mechanism.

[0029] According to a third aspect of this application, a vehicle is also provided, the vehicle including the above-described fragrance switching mechanism.

[0030] Optionally, the vehicle includes the aforementioned fragrance device.

[0031] In the fragrance switching mechanism of this application, the driving component can drive the fragrance selection switching element to move relative to the fragrance dispensing element. When the driving component drives the fragrance selection switching element to connect the fragrance dispersing channel and the fragrance channel, the fragrant gas in the fragrance channel can flow into the fragrance dispersing channel and then into the vehicle interior to improve the air quality and enhance the driving experience. When the driving component drives the fragrance selection switching element to isolate the fragrance dispersing channel from the fragrance channel, the fragrant gas in the fragrance channel cannot flow into the vehicle interior through the fragrance dispersing channel, and the fragrance function is turned off. Therefore, by driving the fragrance switching element, the driving component can adjust the activation and deactivation of the vehicle's fragrance function, meeting the user's needs and improving the flexibility of the fragrance switching mechanism.

[0032] Furthermore, the fragrance selection switch is equipped with a light signal reflector. The light signal reflected by the light signal reflector can determine the relative position of the fragrance selection switch and the fragrance channel. Therefore, the drive component can accurately drive the fragrance selection switch to move to turn the fragrance function on or off based on the position of the fragrance selection switch. In other words, the position of the fragrance channel within the fragrance distribution component is preset and fixed. When the fragrance selection switch is in an unknown position, the light signal reflected by the light signal reflector enables the fragrance switching mechanism to determine the position of the fragrance selection switch relative to the fragrance channel. The fragrance switching mechanism then allows the drive component to drive the fragrance selection switch to rotate by a certain angle or move a certain distance to a position that connects with or isolates it from the fragrance channel, thereby realizing the activation or deactivation of the fragrance function. This application uses the light signal reflected by the light signal reflector to determine the relative position of the fragrance selection switch and the fragrance channel, enabling the drive component to more accurately drive the fragrance selection switch between the first and second positions. This ensures that the vehicle's fragrance function can be accurately activated and deactivated, and also ensures that the fragrance distribution channel and the fragrance channel are accurately aligned and interconnected, effectively preventing misalignment between the fragrance distribution channel and the fragrance channel. Meanwhile, the drive component of this application can directly drive the fragrance switching component to turn the fragrance function on and off, avoiding the phenomena such as impact and motor stalling that occur in the prior art, reducing the operating noise of the fragrance switching mechanism, and providing users with a quieter driving experience.

[0033] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0036] Figure 1 This is a three-dimensional structural diagram (a) of the fragrance switching mechanism disclosed in the embodiments of this application;

[0037] Figure 2 yes Figure 1 Enlarged schematic diagram of part P in the middle;

[0038] Figure 3 This is a three-dimensional structural diagram (II) of the fragrance switching mechanism disclosed in the embodiments of this application;

[0039] Figure 4This is a three-dimensional structural diagram (iii) of the fragrance switching mechanism disclosed in the embodiments of this application;

[0040] Figure 5 This is a cross-sectional view (a) of the fragrance switching mechanism disclosed in the embodiments of this application;

[0041] Figure 6 This is a cross-sectional view (II) of the fragrance switching mechanism disclosed in the embodiments of this application;

[0042] Figure 7 This is a three-dimensional structural diagram (a) of the fragrance selection switching component disclosed in the embodiments of this application;

[0043] Figure 8 This is a three-dimensional structural diagram (II) of the fragrance selection switching component disclosed in the embodiments of this application;

[0044] Figure 9 This is a three-dimensional structural diagram (iii) of the fragrance selection switching component disclosed in the embodiments of this application;

[0045] Figure 10 This is a three-dimensional structural diagram of the vehicle disclosed in the embodiments of this application.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100. Fragrance switching mechanism;

[0048] 10. Fragrance dispensing component; 11. Fragrance channel; 110. Receptacle cavity; 111. Air inlet; 112. Air outlet; 12. Mounting hole; 13. Fragrance exhaust channel;

[0049] 20. Fragrance selection switch; 21. Fragrance dispersing channel; 211. Air inlet section; 212. Air outlet section; 213. Partition; 214. Connecting block; 22. Light signal reflector; 23. Annular concave-convex part; 231. Recessed part; 232. Protruding part; 24. Connection port;

[0050] 30. Drive components; 31. Motor;

[0051] 40. Optical signal transmitter / receiver; 41. Photoelectric sensor;

[0052] 60. Circuit board;

[0053] 200. Vehicles. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0055] As described in the background section, in-vehicle fragrance diffusers improve air quality and enhance the driving experience by releasing fragrances into the vehicle. Different fragrances within the diffuser can emit different scents. Currently, when switching fragrances, a motor drives a rotating shaft via gears. This shaft rotates a cam that strikes a movable bracket, opening the fragrance diffusion channel and allowing the scent to diffuse into the vehicle. However, the impact of the cam on the movable bracket and the motor resetting the shaft position generate significant noise. To reduce the operating noise of the diffuser, a fragrance switching tube is used, with the motor directly driving the tube to open different diffusion channels. However, this tube's position cannot be detected. Therefore, the inventors of this application have designed a novel fragrance switching mechanism that can at least detect the position of the fragrance switching tube. The following description, in conjunction with the accompanying drawings, will provide a detailed explanation of this fragrance switching mechanism.

[0056] See Figures 1 to 10 As shown, according to a first aspect of this application, a fragrance switching mechanism 100 is provided. The fragrance switching mechanism 100 includes a fragrance dispensing component 10, a fragrance selection switching component 20, and a driving component 30.

[0057] Specifically, the fragrance dispensing component 10 has a fragrance channel 11. The fragrance selection switching component 20 has a fragrance diffusion channel 21. The fragrance selection switching component 20 has a first position that moves relative to the fragrance dispensing component 10 to connect the fragrance diffusion channel 21 with the fragrance channel 11, and a second position that isolates the fragrance diffusion channel 21 from the fragrance channel 11. The fragrance selection switching component 20 has a light signal reflecting part 22. The light signal reflecting part 22 is used at least to reflect light signals to determine the relative position of the fragrance selection switching component 20 and the fragrance channel 11. The driving component 30 is configured to drive the fragrance selection switching component 20 to move according to the light signal to switch between the first position and the second position.

[0058] In this embodiment, the driving component 30 can drive the fragrance selection switch 20 to move relative to the fragrance dispensing component 10. When the driving component 30 drives the fragrance selection switch 20 to move so that the fragrance dispersing channel 21 is connected to the fragrance channel 11, the fragrant gas in the fragrance channel 11 can flow into the fragrance dispersing channel 21, and then into the vehicle 200 to improve the air quality inside the vehicle and enrich the driving experience. When the driving component 30 drives the fragrance selection switch 20 to move so that the fragrance dispersing channel 21 is isolated from the fragrance channel 11, the fragrant gas in the fragrance channel 11 cannot flow into the vehicle through the fragrance dispersing channel 21, and the fragrance function is turned off. Therefore, by driving the fragrance switch 20 to move, the driving component 30 can adjust the opening and closing of the fragrance function of the vehicle 200, meet the user's needs, and improve the flexibility of the fragrance switching mechanism 100.

[0059] Furthermore, the fragrance selection switch 20 is equipped with a light signal reflector 22. The light signal reflected by the light signal reflector 22 can determine the relative position of the fragrance selection switch 20 and the fragrance channel 11. Therefore, the driving component 30 can accurately drive the fragrance selection switch 20 to move to turn the fragrance function on or off based on the position of the fragrance selection switch 20. That is to say, the position of the fragrance channel 11 in the fragrance dispensing component 10 is preset and fixed. When the fragrance selection switch 20 is in an unknown position, the light signal reflected by the light signal reflector 22 can enable the fragrance switching mechanism 100 to determine the position of the fragrance selection switch 20 relative to the fragrance channel 11. Then, the fragrance switching mechanism 100 can cause the driving component 30 to drive the fragrance selection switch 20 to rotate a certain angle or move a certain distance to reach a position that is connected to or isolated from the fragrance channel 11, thereby realizing the activation or deactivation of the fragrance function. In this embodiment, the relative position of the fragrance selection switch 20 and the fragrance channel 11 is obtained through the light signal reflected by the light signal reflector 22. This allows the drive component 30 to more accurately drive the fragrance selection switch 20 to switch between the first and second positions, ensuring that the fragrance function of the vehicle 200 can be accurately turned on and off. It also ensures that the fragrance diffusion channel 21 and the fragrance channel 11 are accurately aligned and interconnected, effectively preventing misalignment of the fragrance diffusion channel 21 and the fragrance channel 11. Simultaneously, the drive component 30 in this embodiment can directly drive the fragrance selection switch 20 to activate and deactivate the fragrance function, avoiding the impact and motor 31 stalling phenomena found in existing technologies. This reduces the operating noise of the fragrance switching mechanism 100, providing users with a quieter driving experience. Furthermore, this embodiment uses the light signal reflected by the light signal reflector 22 to determine the relative position of the fragrance selection switch 20 and the fragrance channel 11, resulting in a simple structure. Compared to existing technologies, it reduces wear and tear from mechanical hard contact, which helps extend the service life of the fragrance switching mechanism 100.

[0060] like Figures 1 to 5 As shown, in order for the fragrance switching mechanism 100 to switch and emit different fragrances, in some embodiments, the fragrance channel 11 includes N. Each fragrance channel 11 may be provided with a fragrance element. Each fragrance element emits a different fragrance. When different fragrance channels 11 are connected to the fragrance diffusion channel 21, different fragrances can be emitted.

[0061] N fragrance channels 11 are disposed outside the fragrance selection switch 20. N is a natural number, for example, N can be set to 1, 2, 3, 4 or 5, etc. The light signal reflecting unit 22 includes at least N+1 units. Each of the N light signal reflecting units 22 is arranged in a one-to-one correspondence with one of the N fragrance channels 11. The light signal reflecting unit 22 corresponding to a fragrance channel 11 is used to determine the relative position between that fragrance channel 11 and the fragrance selection switch 20, so that the driving unit 30 can drive the fragrance selection switch 20 to switch to a first position communicating with that fragrance channel 11. Another light signal reflecting unit 22 is used to determine the relative position between the fragrance selection switch 20 and each fragrance channel 11, so that the driving unit 30 can drive the fragrance selection switch 20 to switch to a second position. When the light signal reflected by one of the light signal reflectors 22 is received, the fragrance switching mechanism 100 obtains the relative positions of the light signal reflector 22, the fragrance channel 21, and the fragrance channel 11 corresponding to the light signal reflector 22. Then, the fragrance switching mechanism 100 controls the fragrance selection switch 20 to rotate at a certain angle or move a certain distance until the fragrance channel 21 connects with the corresponding fragrance channel 11. At this point, the scented gas can flow through the fragrance channel 21 and enter the vehicle interior, achieving fragrance switching. When the light signal reflected by another light signal reflector 22 is received, the fragrance switching mechanism 100 obtains the relative positions of the light signal reflector 22, the fragrance channel 21, and each fragrance channel 11. Then, the fragrance switching mechanism 100 controls the fragrance selection switch 20 to rotate at a certain angle or move a certain distance until the fragrance channel 21 is no longer connected to any of the fragrance channels 11. At this point, the fragrance function is turned off.

[0062] Specifically, a light signal emitting / receiving unit 40, which is relatively stationary and can be used to receive light signals, is provided on one side of the fragrance dispersing component 10. Since the relative position of the light signal emitting / receiving unit 40 and each fragrance channel 11 is fixed, and the relative position of each light signal reflecting unit 22 and the fragrance dispersing channel 21 is determinable, the relative position of the fragrance dispersing channel 21 and each fragrance channel 11 can be obtained by identifying the relative position between the light signal emitting / receiving unit 40 and each light signal reflecting unit 22.

[0063] To identify the relative positions between the optical signal transmitting / receiving unit 40 and each optical signal reflecting unit 22, in some embodiments, the lengths of each optical signal reflecting unit 22 are different along the circumference of the fragrance selection switch 20. Since the lengths of each optical signal reflecting unit 22 are different, the durations of the optical signals received by the optical signal transmitting / receiving unit 40 are different. By identifying the differences in the durations of each electrical signal, it is possible to accurately distinguish which optical signal reflecting unit 22 reflected the electrical signal, thus obtaining the relative positions between the optical signal transmitting / receiving unit 40 and each optical signal reflecting unit 22. Specifically, when the electrical signal received by the optical signal transmitting / receiving unit 40 ends, it is considered that the end of the optical signal reflecting unit 22 is aligned with the optical signal transmitting / receiving unit 40. When the optical signal reflecting units 22 are located at the ends of the fragrance selection switch 20 and are fan-shaped, the different lengths of each optical signal reflecting unit 22 indicate that the maximum arc lengths of each optical signal reflecting unit 22 are different.

[0064] In some embodiments, N+1 optical signal reflecting portions 22 are continuously arranged along the outer periphery of the fragrance selection switch 20. In other embodiments, N+1 optical signal reflecting portions 22 are sequentially spaced along the outer periphery of the fragrance selection switch 20. The smaller the distance between two adjacent optical signal reflecting portions 22, the easier it is to provide more optical signal reflecting portions 22 on the fragrance selection switch 20 without changing the volume of the fragrance selection switch 20, thereby achieving more fragrance switching and faster fragrance switching action. When N+1 optical signal reflecting portions 22 are spaced apart, it is easier to distinguish the electrical signals reflected by each optical signal reflecting portion 22, effectively preventing phenomena such as electrical signal recognition errors.

[0065] For example, in this embodiment, the fragrance dispensing component 10 is provided with three fragrance channels 11, which are located outside the fragrance selection switching component 20. The fragrance selection switching component 20 is rotatably disposed within the fragrance dispensing component 10. Rotation of the fragrance selection switching component 20 can cause the fragrance dispersing channel 21 to connect sequentially with the first fragrance channel 11, the second fragrance channel 11, and the third fragrance channel 11, or to disconnect the fragrance dispersing channel 21 from all three fragrance channels 11. The relative positions between the light signal emitting / receiving unit 40 and the three fragrance channels 11 are preset and known. The outer surface of the fragrance selection switching component 20 is provided with four light signal reflecting units 22, and the relative positions between the four light signal reflecting units 22 and the fragrance dispersing channels 21 are also preset and known. The durations of the light signals reflected by the four light signal reflecting units 22 are different. Three of the light signal reflecting units 22 are arranged in a one-to-one correspondence with the three fragrance channels 11.

[0066] After the electrical signal reflected by one of the three optical signal reflectors 22 is received by the optical signal transmitting / receiving unit 40, the optical signal transmitting / receiving unit 40 identifies which optical signal reflector 22 reflected the signal by measuring the duration of the electrical signal. This allows the unit to determine the relative positions of the optical signal reflector 22, its corresponding fragrance channel 11, and the optical signal transmitting / receiving unit 40. The driving component 30 can then drive the fragrance dispersing channel 21 to move until it is connected to the fragrance channel 11. Similarly, after the electrical signal reflected by another optical signal reflector 22 is received by the optical signal transmitting / receiving unit 40, the unit identifies the optical signal reflector 22 reflected by measuring the duration of the electrical signal. This allows the unit to determine the relative positions of the optical signal reflector 22, each fragrance channel 11, and the optical signal transmitting / receiving unit 40. The driving component 30 then drives the fragrance dispersing channel 21 to move until it is not connected to any of the fragrance channels 11.

[0067] It is understood that the number of light signal reflecting parts 22 is at least N+1, meaning that the number of light signal reflecting parts 22 is greater than the number of fragrance channels 11. The number of light signal reflecting parts 22 can also be set to N+2, N+3, N+4, etc. The number of light signal reflecting parts 22 can be adjusted according to the actual situation. This embodiment does not make a specific limitation. Any variation in which the number of light signal reflecting parts 22 is greater than the number of fragrance channels 11 is within the protection scope of this embodiment.

[0068] In some embodiments, the light signal reflecting part 22 includes a white coating. The white coating can reflect higher intensity light signals, making it easier for the light signal transmitting / receiving part 40 to receive the light signals. In other embodiments, the light signal reflecting part 22 also includes coatings of other colors; this embodiment is not limited to these specific embodiments.

[0069] In other embodiments, each optical signal reflecting part 22 has the same length, but each optical signal reflecting part 22 includes a coating of a different color, and the intensity of the optical signal reflected by each coating is different. The optical signal transmitting / receiving unit 40 identifies which optical signal reflecting part 22 reflects each intensity of optical signal by recognizing the intensity of the optical signal.

[0070] In other embodiments, the optical signal reflecting part 22 includes a reflective surface with a predetermined roughness. A rougher reflective surface can reflect optical signals of lower intensity, while a smoother reflective surface can reflect optical signals of higher intensity. The optical signal transmitting / receiving part 40 identifies which optical signal reflecting part 22 reflects each intensity of optical signal by recognizing the intensity of the optical signal.

[0071] In other embodiments, the length and coating color of each optical signal reflecting part 22 are the same, but the roughness of the reflective surface of each optical signal reflecting part 22 is different.

[0072] Furthermore, the fragrance selection switch 20 has an annular protrusion 23 on its outer periphery. The annular protrusion 23 includes multiple recessed portions 231 and multiple raised portions 232, which are arranged alternately. A light signal reflecting portion 22 is located on the raised portion 232 of the annular protrusion 23. At this time, the light signal reflected by the light signal reflecting portion 22 located on the raised portion 232 has a stronger intensity, making it easier for the light signal transmitting / receiving unit 40 to identify the light signal reflecting portion 22 corresponding to each light signal. The light signal reflected by the recessed portion 231 is very weak, and the recessed portion 231 can be considered a non-reflective surface. Simultaneously, the raised portion 232 is coated with a white coating to enhance the reflection effect, and the recessed portion 231 has increased roughness to reduce the reflection effect, preventing the non-reflective surface from being misidentified.

[0073] Preferably, the light signal reflecting part 22 is disposed on the surface of the protruding part 232 of the annular concave-convex part 23, and the length of each protruding part 232 is different along the outer periphery of the fragrance switching member 20. Each light signal reflecting part 22 is provided with a white coating, and the smoothness of the reflective surface of each light signal reflecting part 22 is the same. This arrangement allows the duration of the light signal reflected by each light signal reflecting part 22 to be different, and the light signal is easily identified by the light signal transmitting / receiving unit 40. It also prevents the non-reflective surface from being misidentified.

[0074] like Figures 7 to 9 As shown, in some embodiments, the fragrance selection switch 20 includes a cylindrical structure. A fragrance dispersing channel 21 is provided axially on the cylindrical structure, and a fragrance channel 11 is located on the outer periphery of the fragrance dispersing channel 21. A connection port 24 for communicating with the fragrance dispersing channel 21 is provided on the outer periphery of the cylindrical structure. The fragrance selection switch 20 rotates about its own axis to switch between a first position and a second position. The cylindrical structure rotates about its own axis to communicate with different fragrance channels 11. Two connection ports 24 are included: one for gas flowing into the fragrance channel 11 from the fragrance dispersing channel 21, and the other for scented gas flowing into the fragrance dispersing channel 21 from the fragrance channel 11.

[0075] In some embodiments, the fragrance dispensing component 10 is provided with a mounting hole 12. The fragrance channel 11 communicates with the mounting hole 12, and the fragrance selection switch 20 is rotatably disposed within the mounting hole 12. When the fragrance selection switch 20 is in the first position, the connection port 24 communicates with the fragrance channel 11 through the mounting hole 12. The mounting hole 12 is used to accommodate the fragrance selection switch 20. When it is necessary to turn off the fragrance function, the fragrance selection switch 20 rotates, causing the connection port 24 to disconnect from the fragrance channel 11.

[0076] like Figure 6As shown, in some embodiments, the fragrance channel 21 includes an air inlet section 211 and an air outlet section 212. The fragrance channel 11 includes an air inlet 111 and an air outlet 112. The air inlet section 211 is connected to the fragrance channel 11 through the air inlet 111, and the fragrance channel 11 is connected to the air outlet section 212 through the air outlet 112. Two connection ports 24 are respectively disposed at the ends of the air inlet section 211 and the air outlet section 212. Gas enters the air inlet section 211, and sequentially enters the fragrance channel 11 through the connection port 24 and the air inlet 111, then sequentially enters the air outlet section 212 through the air outlet 112 and the connection port 24, and finally flows through the air outlet section 212 into the vehicle interior.

[0077] Specifically, a partition 213 is provided inside the fragrance dispersing channel 21, dividing the channel into an isolated air inlet section 211 and an air outlet section 212. A connecting block 214 is provided inside the air inlet section 211, which is drively connected to the output shaft of the motor 31. Gas enters the air inlet section 211 through the gap between the opening of the air inlet section 211 and the connecting block 214.

[0078] Among them, such as Figure 6 As shown, the fragrance dispensing component 10 is also provided with a fragrance exhaust channel 13. Along the extending direction of the air outlet section 212, the fragrance exhaust channel 13 is connected to the side of the air outlet section 212 away from the air outlet 112. The fragrance-laden gas flows out of the air outlet section 212 and enters the fragrance exhaust channel 13, and then enters the vehicle interior. An exhaust fan can be installed in the fragrance exhaust channel 13 to make the gas flow into the vehicle interior more quickly along a predetermined path. The fragrance-laden gas diffuses into the vehicle interior more quickly, improving the response speed of the fragrance function and enhancing the user experience. The side of the air outlet section 212 away from the air outlet 112 is located at the axial end of the fragrance selection switch 20 and is positioned opposite to the light signal reflector 22.

[0079] In some embodiments, the optical signal reflecting part 22 is disposed on the end face of the cylindrical structure. A plurality of optical signal reflecting parts 22 are arranged circumferentially around the cylindrical structure and in a fan shape.

[0080] In some embodiments, the drive component 30 includes a motor 31, which is disposed at the end of the cylindrical structure and coaxially connected to the cylindrical structure. The motor 31 can accurately control the angle required for the cylindrical structure to rotate around its own axis, and the coaxiality between the cylindrical structure and the motor 31 is higher, which helps to reduce the operating noise of the fragrance switching mechanism 100 and also facilitates the drive connection operation between the motor 31 and the end of the cylindrical structure.

[0081] In some embodiments, the fragrance switching mechanism 100 further includes a light signal transmitting / receiving unit 40 and a control unit. The control unit is electrically connected to the light signal transmitting / receiving unit 40. The light signal transmitting / receiving unit 40 is at least used to receive the light signal reflected by the light signal reflecting unit 22 and transmit the light signal to the control unit. The control unit determines the relative position of the fragrance switching member 20 and the fragrance channel 11 based on the light signal, thereby controlling the driving member 30 to drive the fragrance switching member 20 to move. The control unit can supply power to the light signal transmitting / receiving unit 40 to ensure that the light signal transmitting / receiving unit 40 receives the light signal reflected by the light signal reflecting unit 22 in a timely and accurate manner. After the light signal transmitting / receiving unit 40 receives the light signal reflected by the light signal reflecting unit 22 and transmits it to the control unit, the control unit can calculate, analyze and obtain the relative positional relationship between the fragrance switching member 20 and the fragrance channel 11. Then, the control unit controls the fragrance switching member 20 to move and reach a first position or a second position. During the aforementioned process, as the fragrance selection switch 20 moves, the light signal transmitting / receiving unit 40 receives the light signal reflected by the light signal reflecting unit 22 again and transmits it to the control unit. The control unit then analyzes the relative positional relationship between the fragrance selection switch 20 and the fragrance channel 11 to more accurately control the fragrance selection switch 20 to move to the first or second position. In this embodiment, the control unit can obtain the real-time position of the fragrance selection switch 20 to more accurately control the driving component 30 to drive the fragrance selection switch 20 to move.

[0082] The drive unit 30 also includes an integrated circuit driver. The control unit includes a microcontroller unit. The integrated circuit driver is connected between the microcontroller unit and the motor 31, and can amplify the signals from the microcontroller unit to increase the torque of the motor 31.

[0083] The driving component 30, the optical signal transmitting / receiving unit 40, and the control unit are all mounted on the circuit board 60, with the optical signal transmitting / receiving unit 40 positioned opposite the optical signal reflecting unit 22. The centralized mounting of the driving component 30, the optical signal transmitting / receiving unit 40, and the control unit on the circuit board 60 improves the integration and space utilization of the fragrance switching mechanism 100, reducing the required installation space and facilitating its miniaturization. Furthermore, the centralized mounting of the driving component 30, the optical signal transmitting / receiving unit 40, and the control unit on the circuit board 60 also facilitates assembly, reduces assembly steps and complexity, and improves assembly efficiency. Furthermore, the light signal transmitting / receiving unit 40 and the control unit are stationary relative to the fragrance dispensing component 10. When multiple light signal reflecting units 22 are provided, when the light signal transmitting / receiving unit 40 receives a light signal reflected by a certain light signal reflecting unit 22, the control unit can obtain the position of the light signal reflecting unit 22 relative to the light signal transmitting / receiving unit 40, thereby obtaining the relative positional relationship between the fragrance selection switching component 20 and the fragrance channel 11. The light signal transmitting / receiving unit 40 and the light signal reflecting unit 22 are arranged opposite each other. In this embodiment, this means that the light signal transmitting / receiving unit 40 can be face-to-face with the light signal reflecting unit 22 or aligned along a preset path, ensuring that the light signal transmitting / receiving unit 40 can receive the light signal reflected by the light signal reflecting unit 22 to the maximum extent and reduce the transmission loss of the light signal.

[0084] For example, when the fragrance selection switch 20 is configured as a cylindrical structure, when the light signal reflecting part 22 is located on the outer peripheral side of the cylindrical structure, the light signal transmitting / receiving part 40 is disposed on one radial side of the cylindrical structure and arranged at a distance from the fragrance selection switch 20. When the light signal reflecting part 22 is located on the axial end face of the cylindrical structure, the light signal transmitting / receiving part 40 is disposed on one axial side of the cylindrical structure and arranged at a distance from the fragrance selection switch 20.

[0085] In some embodiments, the optical signal transmitting / receiving unit 40 includes a photoelectric sensor 41. The photoelectric sensor 41 identifies which optical signal reflector 22 reflects the optical signal by recognizing the duration or intensity of the optical signal. The photoelectric sensor 41 also has a high response speed, small size, and low cost.

[0086] The fragrance channel 11 includes a receiving cavity 110, which is used to hold at least one fragrance component. The fragrance component is detachably installed within the receiving cavity 110. Specifically, the fragrance component can be inserted into the receiving cavity 110.

[0087] According to a second aspect of this application, a fragrance device is provided, comprising a fragrance element and the aforementioned fragrance switching mechanism 100. The fragrance element includes aromatherapy, scented insect repellent, or other structures capable of emitting a fragrance. This fragrance device includes all the technical effects of the fragrance switching mechanism 100 in the above embodiments. Since the technical effects of the fragrance switching mechanism 100 have been described in detail above, they will not be repeated here.

[0088] like Figure 10 As shown, according to a third aspect of this application, a vehicle 200 is also provided, which includes the aforementioned fragrance switching mechanism 100. Therefore, the vehicle 200 includes all the technical effects of the fragrance switching mechanism 100 in the above embodiments. Since the technical effects of the fragrance switching mechanism 100 have been described in detail above, they will not be repeated here.

[0089] Furthermore, vehicle 200 includes the aforementioned fragrance device. Vehicle 200 incorporates all the technical effects of the aforementioned fragrance device. Vehicle 200 may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, a new energy vehicle, a ship, or an aircraft, etc., and this disclosure does not specifically limit it in this regard.

[0090] This technology includes a drive unit 30, an optical signal transmitter / receiver 40, a fragrance selection switch 20, a fragrance dispensing unit 10, and a control unit. In one embodiment, the position detection circuit of the fragrance selection switch 20 includes a microcontroller unit, an integrated circuit driver, the optical signal transmitter / receiver 40, and a motor 31.

[0091] In practical implementation, the fragrance selection switch 20 of this technology features four white silkscreened fan-shaped rings of different sizes. Three of the fan-shaped rings each mark the position of a fragrance channel 11 at their center, while the last ring marks the position where all fragrance channels 11 are closed. The size of the white silkscreened fan-shaped rings serves as an identification feature for the positions of the fragrance channels 11. The fragrance selection switch 20 has a connection port 24. Rotating the fragrance selection switch 20 aligns the connection port 24 with the three fragrance channels of the fragrance channels 11, thereby opening the fragrance diffusion channel 21. Grooves are designed between the four white silkscreened fan-shaped rings.

[0092] The circuit board 60 of this technology integrates a photoelectric sensor 41, which features short-distance emission and reception of light signals. It is sensitive to distance, surface roughness, and color. The shorter the distance, the smoother the surface, and the whiter the color, the stronger the reflected light signal when the sensor emits a fixed-intensity light signal. Based on this principle, the aforementioned fan-shaped white silkscreen printing is designed. Conversely, the longer the distance, the more concave the surface, and the darker the color, the weaker the reflected light signal when the sensor emits a fixed-intensity light signal. Based on this principle, grooves are designed between the four fan-shaped white silkscreen printing rings.

[0093] This technology focuses on the position detection circuit of the fragrance switching component 20 and the working principle of the fragrance switching component 20. The whole vehicle controls the fragrance switching mechanism 100 via CAN / LIN bus to control the rotation of the fragrance switching component 20. The microcontroller simultaneously turns on the power supply of the photoelectric sensor 41 circuit. The photoelectric sensor 41 is stationary inside the fragrance switching mechanism 100. Its light-emitting diode emits light signals to the moving fragrance switching component 20. When the light signal shines on the white silk screen of the fan-shaped ring, the reflected light signal can turn on the photoelectric diode. In conjunction with the output of the photoelectric sensor 41 circuit, a high level is sent to the microcontroller. The microcontroller determines the position of the fragrance switching component 20 (i.e., the center of the identified fan-shaped silk screen ring) by calculating the time from the start to the end of the high level (i.e., the size of the fan-shaped silk screen ring). At the same time, the connection port 24 of the fragrance switching component 20 is aligned with the position of the fragrance channel 11. When the high level ends, the fragrance switching component 20 stops, the connection port 24 of the fragrance switching component 20 is aligned with the fragrance channel 11, and the fragrance dispersal channel 21 is opened. This technology can detect the positions of three fragrance selection switchers 20 and select three fragrance dispersing channels 21. When the photoelectric sensor 41 is at the end of the white silkscreen of the fan-shaped ring, all channels of the fragrance selection switcher 20 are closed, the fragrance dispersing channel 21 is closed.

[0094] In summary, the fragrance switching mechanism 100 of this utility model has the following advantages in production practice:

[0095] Beneficial effects:

[0096] 1. The fragrance switching mechanism 100 has a multi-fragrance channel 11 recognition function, and the fragrance switching and fragrance diffusion channel 21 opening and closing are accurate and reliable.

[0097] 2. It can be used as an alternative to the motor 31 stalled fragrance selection switch 20 position reset or photoelectric board, reducing basic noise or reducing functional modules, while improving the in-car fragrance experience.

[0098] 3. Reduce the complexity of the fragrance switching mechanism by 100%, improve manufacturability, and reduce production costs.

[0099] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0100] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0101] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0102] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A fragrance switching mechanism (100), characterized in that, include: The fragrance dispensing component (10) is provided with a fragrance channel (11); A fragrance selection switch (20) is provided, wherein a fragrance dispersing channel (21) is provided inside the fragrance selection switch (20), the fragrance selection switch (20) has a first position that moves relative to the fragrance dispersing component (10) to communicate with the fragrance channel (11), and a second position that isolates the fragrance dispersing channel (21) from the fragrance channel (11), the fragrance selection switch (20) is provided with a light signal reflecting part (22), the light signal reflecting part (22) is at least used to reflect light signals to determine the relative position of the fragrance selection switch (20) and the fragrance channel (11); A driving component (30) is configured to drive the fragrance selector (20) to move according to the optical signal to switch between the first position and the second position.

2. The fragrance switching mechanism (100) according to claim 1, characterized in that, The fragrance channels (11) include N channels, and the N fragrance channels (11) are located outside the fragrance selection switch (20), where N is a natural number; The optical signal reflecting part (22) includes at least N+1 parts, wherein: N light signal reflecting units (22) are arranged one-to-one with N fragrance channels (11). The light signal reflecting unit (22) corresponding to the fragrance channel (11) is used to determine the relative position of the fragrance channel (11) and the fragrance selection switch (20) so as to enable the driving unit (30) to drive the fragrance selection switch (20) to switch to the first position connected to the fragrance channel (11); Another of the light signal reflecting units (22) is used to determine the relative position of the fragrance selection switch (20) and each of the fragrance channels (11) so that the driving unit (30) can drive the fragrance selection switch (20) to switch to the second position.

3. The fragrance switching mechanism (100) according to claim 2, characterized in that, N+1 optical signal reflecting parts (22) are arranged continuously or at intervals along the outer periphery of the fragrance switching member (20); and / or, Along the circumference of the fragrance switching member (20), the lengths of each of the optical signal reflecting parts (22) are different.

4. The fragrance switching mechanism (100) according to claim 1, characterized in that, The optical signal reflecting part (22) includes a white coating or a reflective surface with a predetermined roughness; and / or, The fragrance selection switch (20) has an annular concave-convex portion (23) on its outer periphery, and the light signal reflecting portion (22) is disposed on the protruding portion (232) of the annular concave-convex portion (23).

5. The fragrance switching mechanism (100) according to claim 1, characterized in that, The fragrance selection switch (20) includes a cylindrical structure, and the fragrance dispersing channel (21) is provided on the axial direction of the cylindrical structure. The fragrance channel (11) is located on the outer periphery of the fragrance dispersing channel (21), and the outer periphery of the cylindrical structure is provided with a connection port (24) for communicating with the fragrance dispersing channel (21). The fragrance switching component (20) rotates about its own axis to switch between the first position and the second position.

6. The fragrance switching mechanism (100) according to claim 5, characterized in that, The optical signal reflecting part (22) is disposed on the end face of the cylindrical structure.

7. The fragrance switching mechanism (100) according to claim 5, characterized in that, The driving component (30) includes a motor (31), which is disposed at the end of the cylindrical structure and coaxially connected to the cylindrical structure.

8. The fragrance switching mechanism (100) according to claim 5, characterized in that, The fragrance dispensing component (10) is provided with an installation hole (12), the fragrance channel (11) is connected to the installation hole (12), the fragrance selection switch (20) is rotatably disposed in the installation hole (12), and when the fragrance selection switch (20) is in the first position, the connection port (24) is connected to the fragrance channel (11) through the installation hole (12).

9. The fragrance switching mechanism (100) according to any one of claims 1 to 8, characterized in that, The fragrance channel (21) includes an air inlet section (211) and an air outlet section (212), and the fragrance channel (11) includes an air inlet (111) and an air outlet (112). The air inlet section (211) is connected to the fragrance channel (11) through the air inlet (111), and the fragrance channel (11) is connected to the air outlet section (212) through the air outlet (112).

10. The fragrance switching mechanism (100) according to claim 9, characterized in that, The fragrance dispensing component (10) is also provided with a fragrance exhaust channel (13), which is connected to the side of the air exhaust section (212) away from the air outlet (112) along the extension direction of the air outlet section (212).

11. The fragrance switching mechanism (100) according to any one of claims 1 to 8, characterized in that, The fragrance switching mechanism (100) further includes a light signal transmitting / receiving unit (40) and a control unit. The control unit is electrically connected to the light signal transmitting / receiving unit (40). The light signal transmitting / receiving unit (40) is at least used to receive the light signal reflected by the light signal reflecting unit (22) and transmit the light signal to the control unit. The control unit determines the relative position of the fragrance switching component (20) and the fragrance channel (11) according to the light signal, thereby controlling the driving component (30) to drive the fragrance switching component (20) to move.

12. The fragrance switching mechanism (100) according to claim 11, characterized in that, The driving component (30), the optical signal transmitting / receiving unit (40) and the control unit are all disposed on the circuit board (60), and the optical signal transmitting / receiving unit (40) is disposed opposite to the optical signal reflecting unit (22).

13. The fragrance switching mechanism (100) according to claim 11, characterized in that, The optical signal transmitting / receiving unit (40) includes a photoelectric sensor (41).

14. The fragrance switching mechanism (100) according to any one of claims 1 to 8, characterized in that, The fragrance channel (11) is provided with a receiving cavity (110), which is at least used to place a fragrance component.

15. A fragrance device, characterized in that, The fragrance device includes a fragrance element and a fragrance switching mechanism (100) as described in any one of claims 1 to 14.

16. A vehicle (200), characterized in that, The vehicle (200) includes a fragrance switching mechanism (100) as described in any one of claims 1 to 14, or includes a fragrance device as described in claim 15.

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