Vehicle-mounted fragrance switching mechanism

Abstract

The vehicle-mounted fragrance switching mechanism comprises a rotating shaft, a main fan cover and a motor, the rotating shaft is driven by the motor and installed in the main fan cover in a rotating mode, an inner cavity of the rotating shaft is divided into an air inlet cavity and an air outlet cavity which are independent from each other, and openings are formed in the ends, away from each other, of the air inlet cavity and the air outlet cavity. An air inlet and an air outlet which correspond to the air inlet cavity and the air outlet cavity are formed in the same side of the rotating shaft, a fan communicated with the air outlet cavity is arranged at the end, opposite to the motor, of the main fan cover, a plurality of drainage sets corresponding to different fragrances are arranged on the main fan cover, and each drainage set comprises a drainage inlet channel and a drainage outlet channel which correspond to the air inlet and the air outlet in a one-to-one mode; according to the utility model, the switching between the air inlet and the air outlet of the rotating shaft and different drainage groups is realized by driving the rotating shaft, so that the fan blows out fragrance with different smells, a tedious linkage structure is omitted, the operation is simple, and the cost is low. The structure is simple and assembling is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a vehicle-mounted fragrance switching mechanism. Background Art

[0002] With the development and progress of society, consumers' user experience of products has a tendency to gradually increase. Based on this, some vehicles begin to provide car fragrance devices, which are used to release gases with specific smells into the air in the cabin to make the vehicle driver and passengers feel more comfortable.

[0003] Chinese patent number CN202320495430.X discloses a fragrance switching structure, including a motor, and a switching member, an air guide cover and a plurality of movable valves arranged in sequence from top to bottom; the motor drives the switching member to rotate; the switching member includes a rotating shaft and a plurality of switching parts, and the plurality of switching parts are arranged on the rotating shaft at intervals and located in different directions of the circumference of the rotating shaft; a plurality of drainage port groups are arranged on the air guide cover at intervals, and each of the drainage port groups includes two drainage ports; the plurality of switching parts, the plurality of drainage port groups and the plurality of movable valves are arranged in a one-to-one correspondence, and each movable valve blocks the corresponding two drainage ports; any of the switching parts can drive the corresponding movable valve to move downward to open the corresponding two drainage ports on the air guide cover.

[0004] Problems existing in the above patent: the existing fragrance switching mechanism needs to add several cam structures on the rotating shaft before it can cooperate with the movable valve to open the drainage port, and the structure is complex and the assembly is cumbersome. Summary of the invention

[0005] The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and to provide a vehicle-mounted fragrance switching mechanism.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle-mounted fragrance switching mechanism, comprising a rotating shaft, a main air hood, and a motor, the rotating shaft being driven by the motor and being rotatably installed in the main air hood, the inner cavity of the rotating shaft being divided into an air inlet cavity and an air outlet cavity which are independent of each other, the air inlet cavity and the air outlet cavity being provided with an opening at one end away from each other, an air inlet and an air outlet corresponding to the air inlet cavity and the air outlet cavity being provided on the same side of the rotating shaft along the length direction, a fan connected to the air outlet cavity being provided at one end of the main air hood opposite to the motor, a plurality of drainage groups corresponding to different fragrances being provided on the main air hood, each drainage group comprising a drainage inlet channel and a drainage outlet channel which correspond to the air inlet and the air outlet one by one, and the rotating shaft being rotated so that the air inlet and the air outlet are connected with the drainage inlet channel and the drainage outlet channel of any drainage group.

[0007] As a preferred technical solution of the utility model, three drainage groups are provided and arranged at intervals at the bottom of the main air hood, wherein the two drainage groups located on the left and right sides of the main air hood are connected to the main air hood through the air duct hood.

[0008] As an optimal technical solution of the utility model, the air hood has an air inlet channel and an air outlet channel corresponding to the drainage inlet channel and the drainage outlet channel. When the rotating shaft rotates a certain angle, the air inlet and air outlet of the main air hood are connected with the air inlet channel and the air outlet channel.

[0009] As a preferred technical solution of the utility model, a bottom cover is provided at the bottom of the main air hood, and three channel groups corresponding to the drainage groups are opened on the bottom cover, and each channel group includes two channel openings.

[0010] As a preferred technical solution of the utility model, snap fasteners are provided on both sides of the bottom cover, and buckling parts are provided on the air duct covers on both sides, and the snap fasteners are snap-fitted with the buckling parts.

[0011] As a preferred technical solution of the utility model, a detection component is also provided, which includes a PCB board, a photoelectric coupler and a control turntable. The photoelectric coupler is electrically connected to the PCB board, and the control turntable is installed on the rotating shaft and movably fits in the photoelectric coupler.

[0012] As a preferred technical solution of the utility model, a plurality of signal modules are arranged on the control turntable, and the signal modules include a positioning module and a judgment module. The positioning module is arranged adjacent to the judgment module, and the judgment module includes at least one short hole or short slot, and the number of short holes or short slots in each judgment module is different. The positioning module includes a long hole or long slot.

[0013] Compared with the prior art, the beneficial effect of the utility model is that by driving the rotating shaft, the switching between the rotating shaft air inlet, air outlet and different drainage groups is realized, so that the fan blows out fragrances with different smells, eliminating the cumbersome linkage structure, and the structure is simple and easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the bottom structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model (without the bottom cover);

[0017] Figure 4 It is a schematic diagram of the bottom structure of the utility model (without the bottom cover);

[0018] Figure 5 It is a structural schematic diagram of the rotating shaft in the utility model.

[0019] Figure numerals: 1. rotating shaft; 2. main air hood; 3. motor; 4. air inlet chamber; 5. air outlet chamber; 6. air inlet; 7. air outlet; 8. drainage group; 9. drainage inlet channel; 10. drainage outlet channel; 11. air hood; 12. air inlet channel; 13. air outlet channel; 14. bottom cover; 15. channel group; 16. channel opening; 17. snap fastener; 18. buckling part; 19. PCB board; 20. photoelectric coupler; 21. control dial; 22. signal module; 23. positioning module; 24. judgment module; 25. opening; 26. fan. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0021] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0022] like Figures 1 to 5 A vehicle-mounted fragrance switching mechanism shown in the figure includes a rotating shaft 1, a main air cover 2, and a motor 3. The rotating shaft 1 is driven by the motor 3 and the rotating shaft 1 is rotatably installed in the main air cover 2. The inner cavity of the rotating shaft 1 is divided into an air inlet chamber 4 and an air outlet chamber 5 that are independent of each other. The air inlet chamber 4 and the air outlet chamber 5 are provided with an opening 25 at one end away from each other. An air inlet 6 and an air outlet 7 corresponding to the air inlet chamber 4 and the air outlet chamber 5 are provided on the same side of the rotating shaft 1 along the length direction. A fan 26 connected to the air outlet chamber 5 is provided at one end of the main air cover 2 opposite to the motor 3. A plurality of drainage groups 8 corresponding to different fragrances are provided on the main air cover 2, each drainage group 8 includes a drainage inlet channel 9 and a drainage outlet channel 10 corresponding to the air inlet 6 and the air outlet 7 one by one. The rotating shaft 1 rotates to connect the air inlet 6 and the air outlet 7 with the drainage inlet channel 9 and the drainage outlet channel 10 of any drainage group 8, and each group of drainage groups 8 corresponds to a gear position of the rotating shaft 1.

[0023] By driving the rotating shaft 1, the air inlet 6, the air outlet 7 and the different drainage groups 8 of the rotating shaft 1 are switched, so that the fan 26 blows out fragrances of different smells, eliminating the cumbersome linkage structure, with a simple structure and convenient assembly.

[0024] There are three drainage groups 8 arranged at intervals at the bottom of the main air hood 2, corresponding to the first, second and third gears of the rotating shaft 1 respectively. The two drainage groups 8 located on the left and right sides of the main air hood 2 are connected to the main air hood 2 through the air hood 11.

[0025] The air hood 11 has an air inlet channel 12 and an air outlet channel 13 corresponding to the drainage inlet channel 9 and the drainage outlet channel 10. When the rotating shaft 1 rotates a certain angle (depending on the position of the drainage group 8), the air inlet 6 and the air outlet 7 of the main air hood 2 are connected to the air inlet channel 12 and the air outlet channel 13.

[0026] A bottom cover 14 is provided at the bottom of the main wind cover 2, and three groups of channel groups 15 corresponding to the drainage group 8 are opened on the bottom cover 14, and each group of channel groups 15 includes two channel openings 16, and the two channel holes are one inlet and one outlet. When the air inlet 6 and the air outlet 7 of the rotating shaft 1 are connected with the drainage group 8, the channel opening 16 of the corresponding channel group 15 is connected with the air inlet cavity 4 of the rotating shaft 1, and the other channel opening 16 is connected with the air outlet cavity 5 of the rotating shaft 1.

[0027] The bottom cover 14 is provided with snap-fitting pieces 17 on both sides, and the air hoods 11 on both sides are provided with snap-fitting parts 18 . The snap-fitting pieces 17 are snap-fitted with the snap-fitting parts 18 , so that the assembly is more convenient, and the PCB board 19 can be installed on the bottom plate.

[0028] A detection component is also provided, which includes a PCB board 19, a photoelectric coupler 20 and a control dial 21. The photoelectric coupler 20 is electrically connected to the PCB board 19. The control dial 21 is installed on the rotating shaft 1 and movably fits in the photoelectric coupler 20. When the rotating shaft 1 rotates, the gear position is identified by the different situations in which different gear gratings block the optical signal of the photoelectric coupler 20.

[0029] A plurality of signal modules 22 are arranged on the control turntable 21. The signal module 22 includes a positioning module 23 and a judgment module 24. The positioning module 23 is arranged adjacent to the judgment module 24. The judgment module 24 includes at least one short hole or short slot. The number of short holes or short slots in each judgment module 24 is different. The positioning module 23 includes a long hole or long slot. During operation, the PCB board 19 can distinguish different working states of the fragrance switching structure through the judgment module 24, and control the fragrance switching structure to execute the corresponding working state through the positioning module 23.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A vehicle-mounted fragrance switching mechanism, characterized in that: The invention comprises a rotating shaft (1), a main wind cover (2), and a motor (3); the rotating shaft (1) is driven by the motor (3) and is rotatably installed in the main wind cover (2); the inner cavity of the rotating shaft (1) is divided into an air inlet cavity (4) and an air outlet cavity (5) which are independent of each other; the air inlet cavity (4) and the air outlet cavity (5) are provided with an opening (25) at one end which is away from each other; an air inlet (6) and an air outlet (7) which correspond to the air inlet cavity (4) and the air outlet cavity (5) are provided on the same side of the rotating shaft (1) along the length direction; the main wind cover (2) is provided with an air inlet (6) and an air outlet (7) which correspond to the air inlet cavity (4) and the air outlet cavity (5); A fan (26) connected to the air outlet chamber (5) is arranged at one end of the air hood (2) opposite to the motor (3); a plurality of drainage groups (8) corresponding to different fragrances are arranged on the main air hood (2); each drainage group (8) comprises a drainage inlet channel (9) and a drainage outlet channel (10) corresponding to the air inlet (6) and the air outlet (7) one by one; the rotating shaft (1) rotates so that the air inlet (6) and the air outlet (7) are connected to the drainage inlet channel (9) and the drainage outlet channel (10) of any drainage group (8).

2. The vehicle-mounted fragrance switching mechanism according to claim 1, characterized in that: The drainage groups (8) are provided in three groups and are arranged at intervals at the bottom of the main air hood (2), wherein the two drainage groups (8) located on the left and right sides of the main air hood (2) are connected to the main air hood (2) via the air hood (11).

3. The vehicle-mounted fragrance switching mechanism according to claim 2, characterized in that: The air induced hood (11) has an air inlet channel (12) and an air outlet channel (13) corresponding to the air inlet channel (9) and the air outlet channel (10); when the rotating shaft (1) rotates at a certain angle, the air inlet (6) and the air outlet (7) of the main air hood (2) are connected to the air inlet channel (12) and the air outlet channel (13).

4. The vehicle-mounted fragrance switching mechanism according to claim 3, characterized in that: A bottom cover (14) is provided at the bottom of the main air hood (2), and three groups of channel groups (15) corresponding to the drainage groups (8) are opened on the bottom cover (14), and each group of channel groups (15) includes two channel openings (16).

5. The vehicle-mounted fragrance switching mechanism according to claim 4, characterized in that: The bottom cover (14) is provided with snap fasteners (17) on both sides, and the air induction covers (11) on both sides are provided with snap fasteners (18), and the snap fasteners (17) are snap-fitted with the snap fasteners (18).

6. The vehicle-mounted fragrance switching mechanism according to claim 1, characterized in that: A detection component is also provided, the detection component comprising a PCB board (19), a photoelectric coupler (20) and a control turntable (21), the photoelectric coupler (20) being electrically connected to the PCB board (19), and the control turntable (21) being mounted on the rotating shaft (1) and movably fitted in the photoelectric coupler (20).

7. The vehicle-mounted fragrance switching mechanism according to claim 6, characterized in that: The control turntable (21) is provided with a plurality of signal modules (22), the signal modules (22) comprising a positioning module (23) and a judgment module (24), the positioning module (23) being arranged adjacent to the judgment module (24), the judgment module (24) comprising at least one short hole or short slot, the number of short holes or short slots in each judgment module (24) being different, and the positioning module (23) comprising a long hole or long slot.

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