Fragrance mixing device capable of preventing smell mixing and air duct control module of fragrance mixing device

Abstract

The invention discloses a fragrance mixing device capable of preventing smell channeling and an air duct control module thereof.The fragrance mixing device comprises a shell, the air duct control module, a draught fan, a plurality of fragrance bullets, a fragrance rebound device, a fragrance drawer and a drawer control module, an air inlet and a fragrance air outlet are formed in the shell, and the draught fan communicates with the fragrance air outlet; the fragrance drawer is arranged in the shell in a drawable mode, a plurality of fragrance cavities are formed in the fragrance drawer, the fragrance bombs are installed in the fragrance cavities, each fragrance cavity is provided with an air inlet and a fragrance outlet, and an air duct piece of the air duct control module is provided with a plurality of sets of fragrance inlet blade holes and fragrance outlet blade holes corresponding to the fragrance cavities. Each group of fragrance inlet blade hole and fragrance outlet blade hole corresponds to a pair of blades and a motor, the air duct cover is provided with a fragrance mixing cavity communicated with the fragrance outlet blade holes, and the fragrance rebound device is used for controlling the fragrance bomb to pop up or lock; the drawer control module is provided with a drawer rebounding device installed on the back face of the fragrance drawer, and the drawer rebounding device is used for controlling the fragrance drawer to be popped out or locked.

Description

Technical Field

[0001] The invention relates to the technical field of automobile interior decoration, and in particular to a fragrance mixing device for preventing odor cross-talk and an air duct control module thereof. Background Art

[0002] With the growing development of the automobile industry, consumers have higher and higher requirements for the comfort of the in-car environment. The fragrance system can release fragrance into the entire car through a diffuser, which can effectively remove the leather odor and residual smell after smoking. Some systems also have the function of purifying the air with negative ions, which can provide passengers with a comfortable in-car environment.

[0003] The existing in-vehicle fragrance system has a single fragrance and cannot meet the user's requirements for various fragrance flavors. Based on this, the prior patent with publication number CN210101268U discloses a vehicle-mounted fragrance device that rotates to switch fragrances. Multiple types of fragrances are integrated in one device module to meet diverse needs, but it can only provide one fragrance in the same period of time, and it is impossible to mix more than two fragrances. In addition, the multiple fragrances in the device are prone to cross-flavoring, which brings a bad experience to users. The prior patent CN210526355U discloses a vehicle-mounted mixed fragrance machine that can provide one fragrance alone and two or even three mixed fragrances at the same time. However, its fragrance changing structure is complicated, which is not conducive to users changing fragrances.

[0004] In view of this, the present invention is developed by deeply considering the many shortcomings and inconveniences caused by the single fragrance type, easy odor mixing between fragrances, and complex fragrance changing structure of existing fragrance generators, and actively researching, improving and trial-making to develop the present invention. Summary of the invention

[0005] The object of the present invention is to provide an air duct control module which can accurately select fragrance and prevent odor cross-contamination.

[0006] In order to achieve the above object, the solution of the present invention is:

[0007] A duct control module comprises a duct member, blades, a motor and an duct cover, wherein the duct member is arranged at one end of a fragrance drawer corresponding to a fragrance outlet, and the duct member is provided with a fragrance inlet blade hole and a fragrance outlet blade hole corresponding to each air inlet and fragrance outlet, respectively, and each fragrance inlet blade hole and fragrance outlet blade hole is provided with a pair of blades corresponding to each fragrance inlet blade hole and fragrance outlet blade hole, and each pair of blades is connected to a motor, and the blades are linked to the output shaft of the motor; one end of the duct cover is arranged on the duct member, and the duct cover is provided with a fragrance mixing chamber connected to the fragrance outlet blade hole, and the fragrance mixing chamber is connected to the air inlet of the fan.

[0008] Furthermore, the air duct control module also includes a position detection plate, which is connected to the control module, and a magnet is installed on each blade; the air duct cover is a double-layer double-ring structure, the inner ring of which is a fragrance mixing chamber, and the outer ring is an air inlet channel, the fragrance inlet blade holes are connected to the air inlet channel, and the fragrance outlet blade holes are connected to the fragrance mixing chamber.

[0009] After adopting the above scheme, each pair of blades of the air duct control module of the present invention is individually controlled by a motor. The motor controls the blades so that the opening and closing degrees of the fragrance inlet blade holes and the fragrance outlet blade holes are changed, so that the fragrance can be accurately selected or mixed to prevent odor cross-talk.

[0010] Another object of the present invention is to provide a fragrance mixing device that can switch or mix multiple fragrances and prevent odor cross-talk.

[0011] In order to achieve the above object, the solution of the present invention is:

[0012] A fragrance mixing device to prevent odor cross-talk, comprising: a housing, an air duct control module, a fan, a plurality of fragrance bombs, a fragrance rebounder, a fragrance drawer, a drawer control module and a control module, the housing is provided with an air inlet and a fragrance outlet, the fan is connected to the fragrance outlet of the housing, the fragrance drawer is drawable and arranged in the housing, a plurality of fragrance cavities are arranged in the fragrance drawer, the fragrance bombs are installed in the fragrance cavity, each fragrance cavity of the fragrance drawer is respectively provided with an air inlet and a fragrance outlet, the air duct control module comprises an air duct component, blades, a motor and an air duct cover, the air duct component is arranged at one end of the fragrance drawer corresponding to the fragrance outlet, and the air duct The component is respectively provided with a fragrance inlet blade hole and a fragrance outlet blade hole corresponding to each air inlet and fragrance outlet, and each fragrance inlet blade hole and fragrance outlet blade hole are correspondingly provided with a pair of blades, each pair of blades is connected to a motor, and the blades are linked to the output shaft of the motor; one end of the air duct cover is arranged on the air duct component, and the air duct cover is provided with a fragrance mixing chamber connected to the fragrance outlet blade holes, and the fragrance mixing chamber is connected to the air inlet of the fan; the fragrance rebounder is connected to the fragrance bomb to control the fragrance bomb to pop out or lock; the drawer control module has a drawer rebounder installed on the back of the fragrance drawer to control the fragrance drawer to pop out or lock; the control module is connected to the air duct control module.

[0013] Furthermore, the air duct control module is also provided with a position detection board, which is connected to the control module, and a magnet is installed on each blade.

[0014] Furthermore, the air duct cover is a double-layer double-ring structure, the inner ring of which is a fragrance mixing chamber, and the outer ring is an air inlet channel, the fragrance inlet blade holes are connected to the air inlet channel, and the fragrance outlet blade holes are connected to the fragrance mixing chamber.

[0015] Furthermore, the shell includes a shell and an upper cover, the upper cover is buckled on the shell, the air inlet is arranged on the left and right sides of the upper cover, the upper cover is provided with a fan installation cavity for installing a fan, the fan is installed in the fan installation cavity, and the fragrance outlet is arranged at the front end of the fan installation cavity; the shell is also equipped with a bottom plate and an inner cover, a pull-out cavity for the fragrance drawer to move is formed between the bottom plate and the inner cover, a fragrance detection board for detecting fragrance bombs is installed at the bottom of the pull-out cavity, and the fragrance detection board is connected to the control module; a sealing member is provided on the top of the pull-out cavity, and a plurality of through holes corresponding to the fragrance inlet blade holes and the fragrance outlet blade holes are provided on the sealing member, the inner cover is provided with a plurality of through holes corresponding to the fragrance inlet blade holes and the fragrance outlet blade holes, and the sealing member is a soft silicone structure.

[0016] Furthermore, a drawer lower cover and a drawer guide are provided at the bottom of the fragrance drawer, buckles are provided on both sides of the fragrance drawer, the drawer guide is provided with a through buckle hole for inserting the buckle, the drawer lower cover is arranged between the drawer guide and the bottom surface of the fragrance drawer, and at least one limiting column is provided at the rear end of the drawer lower cover corresponding to the fragrance drawer, and the front end surface of the drawer guide has a front baffle extending upward, and the fragrance drawer is installed between the limiting column of the drawer lower cover and the front baffle of the drawer guide.

[0017] Furthermore, the drawer guide rail is provided with a hook at the rear end of the drawer lower cover, and the rear end of the inner cover of the outer shell is provided with a rebound fixing seat for installing the drawer rebounder, the rebound fixing seat is connected to the pulling cavity, the drawer rebounder is fixed on the rebound fixing seat, and the drawer rebounder is provided with an elastic operating rod, one end of the operating rod is rotatably set on the drawer rebounder, and the other end is always popped outward under the force and toward the hook.

[0018] Furthermore, the drawer control module also includes a large gear, a small gear and a coil spring. The drawer guide is provided with a coil spring mounting groove at the rear end of the drawer lower cover, and a large gear mounting shaft is provided in the center of the coil spring mounting groove. The drawer guide is also provided with a coil spring pressure ring fixing seat outside the coil spring mounting groove. The coil spring is installed in the coil spring mounting groove, and the pressure ring at the outer end of the coil spring is fixed on the coil spring pressure ring fixing seat. The large gear is installed on the coil spring, and the large gear mounting shaft is inserted into the center of the large gear. The small gear is meshed with the large gear. A rack meshing with the small gear is provided on the side of the inner cover of the outer shell corresponding to the small gear, and the small gear moves back and forth along the rack.

[0019] Furthermore, the drawer control module also includes a damper, a damping groove is provided on one side of the coil spring mounting groove, the damper is installed in the damping groove, a non-circular damping shaft extending upward is provided at the center of the damper, the center of the pinion has a non-circular axial hole corresponding to the damping shaft, and the axial hole of the pinion is sleeved on the damping shaft, so that the damper and the pinion move synchronously.

[0020] Furthermore, upwardly convex spring beads are provided on both sides of the inner bottom of the shell, and the top of the spring beads abuts against the bottom of the buckle when the fragrance drawer is in a locked state; a drawer spring and a pressing piece for pressing the drawer spring are also provided in the center of the fragrance drawer, one end of the pressing piece passes through the drawer lower cover and is fixed to the drawer guide rail, and the drawer spring is arranged between the drawer lower cover and the pressing piece.

[0021] Furthermore, the fragrance bomb comprises a fragrance bomb upper cover, a fragrance carrier and a fragrance bomb lower cover, the fragrance carrier is arranged in the fragrance bomb lower cover, the fragrance bomb upper cover covers the fragrance carrier and the fragrance bomb lower cover, and the fragrance bomb lower cover is provided with a plurality of air inlet holes connected to the fragrance carrier; the fragrance rebounder comprises a fragrance spring, a pull hook, a slider and a spring piece, wherein the fragrance spring is arranged between the slider and the drawer lower cover, the slider is provided with an inclined surface on one side corresponding to the fragrance bomb, the pull hook is installed on the drawer lower cover and fixed relative to the slider, one end of the spring piece is fixedly installed on the slider, and the other end has a bending portion, the bending portion faces the fragrance bomb, and the fragrance bomb lower cover of the fragrance bomb is provided with a bending groove corresponding to the bending portion.

[0022] After adopting the above scheme, the fragrance mixing device for preventing odor crosstalk of the present invention can facilitate users to change fragrances by setting a retractable fragrance drawer on the shell. The multiple fragrance cavities set on the fragrance drawer can be used to place multiple fragrance bombs. The fragrance bombs are connected to the fragrance rebounder to facilitate the fragrance bombs to pop out or lock in the fragrance cavity, which is very convenient to replace. In addition, multiple fragrance bombs are placed separately in the fragrance cavity and the air duct control module is used to control whether to emit fragrance respectively, so there will be no problem of fragrance crosstalk. Each pair of blades of the air duct control module is individually controlled by a motor, which can accurately select or mix fragrances. The motor controls the blades to change the opening and closing degree of the fragrance inlet blade holes and the fragrance outlet blade holes. Since different fragrances are placed in each fragrance bomb, different fragrances can be produced by controlling the fragrance output of different fragrance bombs. Different fragrances will appear when mixed with multiple fragrances in different proportions. Users can adjust the amount of fragrance emitted by the corresponding fragrance bomb through the air duct control module according to their preferences, thereby increasing, decreasing or even turning off the fragrance of one or more fragrances, thereby providing users with a variety of fragrance types. Each fragrance inlet blade hole and fragrance outlet blade hole are independently controlled by blades and motors, which is convenient for mixing fragrance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional exploded schematic diagram of the present invention.

[0024] Figure 2 It is a combined state diagram of the present invention.

[0025] Figure 3 It is a combined cross-sectional schematic diagram of the present invention.

[0026] Figure 4 This is a schematic diagram of the assembly state of the shell of the present invention being removed.

[0027] Figure 5 It is a schematic diagram of the decomposition of the air duct control module of the present invention.

[0028] Figure 6 It is a schematic diagram of the partial structure decomposition of the present invention.

[0029] Figure 7 It is a schematic diagram of the decomposition of the blade position detection plate and the blade of the present invention.

[0030] Figure 8 It is a schematic diagram of the decomposition of the fragrance rebounder of the present invention.

[0031] Fig. 9 Schematic diagram of the decomposition of the fragrance bomb of the present invention.

[0032] Fig.10 It is a schematic structural diagram of the drawer guide rail of the present invention.

[0033] Fig.11 The structure diagram of the drawer of the present invention is shown in FIG. Figure 1 .

[0034] Fig.12 The structure diagram of the drawer of the present invention is shown in FIG. Figure 2 .

[0035] Fig.13 It is a partial structural schematic diagram of the drawer control module and the housing of the present invention.

[0036] Description of labels:

[0037] 1. Shell; 11. Air inlet; 12. Fragrance outlet; 13. Shell; 14. Upper cover; 15. Fan installation cavity; 16. Bottom plate; 17. Inner cover; 171. Rebound fixing seat; 172. Rack; 18. Pull-out cavity; 19. Seal; 191. Through hole; 2. Air duct control module; 21. Air duct parts; 211. Fragrance inlet blade hole; 212. Fragrance outlet blade hole; 22. Blade; 23. Motor; 24. Air duct cover; 241. Fragrance mixing cavity; 242. Air inlet channel; 25. Position detection board; 26. Magnet; 3. Fan; 4. Fragrance bomb; 41. Fragrance bomb upper cover; 42. Fragrance carrier; 43. Fragrance bomb lower cover; 431. Air inlet hole; 432. Bending groove; 5. Fragrance rebounder; 51. Fragrance spring; 52. Hook; 5 3. Slider; 54. Spring piece; 55. Inclined surface; 56. Bending part; 57. Groove; 6. Fragrance drawer; 61. Fragrance cavity; 611. Air inlet; 612. Fragrance outlet; 62. Drawer bottom cover; 621. Limiting column; 63. Drawer guide; 631. Front baffle; 632. Hook; 633. Coil spring mounting groove; 634. Large gear mounting shaft; 635. Damping groove; 636. Coil spring pressure ring fixing seat; 64. Buckle; 65. Through-hole; 7. Drawer control module; 71. Drawer rebounder; 711. Operating lever; 72. Large gear; 73. Small gear; 731. Shaft hole; 74. Damper; 741. Damping shaft; 75. Coil spring; 751. Pressure ring; 8. Fragrance detection board; 91. Spring bead; 93. Drawer spring; 94. Pressing piece. DETAILED DESCRIPTION

[0038] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0040] like Figures 1 to 13As shown, the present invention discloses a fragrance mixing device for preventing odor cross-talk, which includes a housing 1, an air duct control module 2, a fan 3, a plurality of fragrance bombs 4, a fragrance rebounder 5, a fragrance drawer 6, a drawer control module 7 and a control module. The housing 1 is provided with an air inlet 11 and a fragrance outlet 12. The fan 3 is connected to the fragrance outlet 12 of the housing 1. The fragrance drawer 6 is drawable and arranged in the housing 1. A plurality of fragrance cavities 61 are arranged in the fragrance drawer. Each fragrance cavity 61 is used to place a fragrance bomb 4. Each fragrance cavity 61 of the fragrance drawer 6 is respectively provided with an air inlet 611 and a fragrance outlet 612, and the air inlet 611 is connected to the air inlet 11 of the housing 1, and the air duct control module 2 includes an air duct member 21, a blade 22, a motor 23 and an air duct cover 24, and the air duct member 21 is arranged at one end of the fragrance drawer 6 corresponding to the fragrance outlet 612, and the air duct member 21 is respectively provided with a fragrance inlet blade hole 211 and a fragrance outlet blade hole 212 corresponding to each air inlet 611 and fragrance outlet 612, and the fragrance inlet blade hole 211 and the fragrance outlet blade hole 212 are respectively provided. The hole 212 is smaller than or equal to the size of the blade 22, so that the blade 22 can completely cover the fragrance blade hole 211 and the fragrance blade hole 212. Each fragrance blade hole 211 and the fragrance blade hole 212 are correspondingly provided with a pair of blades 22. Each pair of blades 22 is connected to a motor 23. The blade 22 is linked with the output shaft of the motor 23, so that the motor 23 can drive the blade 22 to rotate, thereby opening or covering the fragrance blade hole 211 and the fragrance blade hole 212. One end of the air duct cover 24 is arranged on the air duct member 21 On the upper side, the air duct cover 24 is provided with a fragrance mixing chamber 241 connected to the fragrance blade hole 212, and the fragrance mixing chamber 241 is connected to the air inlet of the fan 3; the fragrance rebounder 5 is connected to the fragrance bomb 4 to control the fragrance bomb 4 to pop out or lock; the drawer control module 7 has a drawer rebounder 71 installed on the back of the fragrance drawer 6 to control the fragrance drawer 6 to pop out or lock; the control module is connected to the air duct control module 2, so that the air duct control module 2 can adjust the fragrance amount of each fragrance bomb 4 according to the instruction of the control module.

[0041] The fragrance mixing device for preventing odor crosstalk of the present invention is provided with a drawable fragrance drawer 6 on the housing 1, which can facilitate users to change fragrances. The multiple fragrance cavities 61 provided on the fragrance drawer 6 can be used to place multiple fragrance bombs 4. The fragrance bombs 4 are connected to the fragrance rebounder 5 to facilitate the fragrance bombs 4 to pop out or lock in the fragrance cavity 61, which is very convenient to replace. In addition, the multiple fragrance bombs 4 are placed separately in the fragrance cavity 61, and the air duct control module 2 is used to control whether to emit fragrance, so there will be no problem of fragrance crosstalk. Each pair of blades 22 of the air duct control module 2 is individually controlled by a motor 23, so that fragrance can be accurately selected or mixed. The motor 23 controls the blades 22 to change the opening and closing degrees of the fragrance inlet blade holes 211 and the fragrance outlet blade holes 212. Since different fragrances are placed in each fragrance bomb 4, different fragrances can be produced by controlling the fragrance output of different fragrance bombs 4. Different fragrances will appear after mixing fragrances of different proportions. Users can adjust the fragrance output of the corresponding fragrance bomb 4 through the air duct control module 2 according to their preferences, thereby increasing or decreasing or even turning off the fragrance of one or more fragrances, thereby providing users with a variety of fragrance types. Each fragrance inlet blade hole 211 and fragrance outlet blade hole 212 are independently controlled by the blade 22 and the motor 23, which is convenient for mixing fragrance.

[0042] like Figure 1 and Figure 7 As shown, the air duct control module 2 is also provided with a position detection board 25, which is connected to the control module. A magnet 26 is installed on each blade 22. When the blade 22 rotates to a specific position with the magnet 26, the sensor on the position detection board 25 will sense the magnet 26, thereby calculating the precise position of the blade 22, so that the air duct control module 2 can accurately control the opening and closing degree of the fragrance intake blade hole 211 and the fragrance outlet blade hole 212.

[0043] like Figure 5 As shown, the air duct cover 24 is a double-layer double-ring structure, the inner ring of which is the fragrance mixing chamber 241, and the outer ring is the air inlet channel 242, the fragrance inlet blade hole 211 is connected to the air inlet channel 242, and the fragrance outlet blade hole 212 is connected to the fragrance mixing chamber 241.

[0044] like Figure 1 and Figure 2As shown, the housing 1 includes a shell 13 and an upper cover 14, the upper cover 14 is buckled on the shell 13, the air inlet 11 is arranged on the left and right sides of the upper cover 14, the upper cover 14 is provided with a fan installation cavity 15 for installing the fan 3, the fan 3 is installed in the fan installation cavity 15, and the fragrance outlet 12 is arranged at the front end of the fan installation cavity 15. The shell 13 is also equipped with a bottom plate 16 and an inner cover 17, and a pull-out cavity 18 for the movement of the fragrance drawer 6 is formed between the bottom plate 16 and the inner cover 17, and a fragrance detection board 8 for detecting the fragrance bomb 4 is installed at the bottom of the pull-out cavity 18, and the fragrance detection board 8 is connected to the control module. A sealing member 19 is provided at the top of the pull-out cavity 18, and a plurality of through holes 191 corresponding to the fragrance intake blade holes 211 and the fragrance discharge blade holes 212 are provided on the sealing member 19. The inner cover 17 is also provided with a plurality of through holes corresponding to the fragrance intake blade holes 211 and the fragrance discharge blade holes 212 to ensure the entry and exit of fragrance. The sealing member 19 is a soft silicone structure to ensure that the fragrance drawer 6 can be sealed in the pull-out cavity 18 when it is not pulled out, thereby further preventing fragrance from leaking.

[0045] like Figure 1 , Figure 6 and Fig.10 As shown, a drawer lower cover 62 and a drawer guide 63 are provided at the bottom of the fragrance drawer 6, a drawer surface cover is provided at the front end of the fragrance drawer 6, buckles 64 are provided on both sides of the fragrance drawer 6, and the drawer guide 63 is provided with a through buckle hole 65 for inserting the buckle 64, the drawer lower cover 62 is arranged between the drawer guide 63 and the bottom surface of the fragrance drawer 6, and at least one limiting column 621 is provided at the rear end of the drawer lower cover 62 corresponding to the fragrance drawer 6, and the front end surface of the drawer guide 63 has a front baffle 631 extending upward, and the fragrance drawer 6 is installed between the limiting column 621 of the drawer lower cover 62 and the front baffle 631 of the drawer guide 63.

[0046] like Figure 1 , Figure 6 and Fig.10As shown, the drawer guide 63 is provided with a hook 632 at the rear end of the drawer lower cover 62, and the rear end of the inner cover 17 of the shell 1 is provided with a rebound fixing seat 171 for installing a drawer rebounder 71. The rebound fixing seat 171 is connected to the drawing chamber 18, and the drawer rebounder 71 is fixed on the rebound fixing seat 171. The drawer rebounder 71 is provided with an operating rod 711 with elastic force (using a shrapnel or a spring). One end of the operating rod 711 is rotatably arranged on the drawer rebounder 71, and the other end is always ejected outward by force and toward the hook 632, pushing the back side of the fragrance drawer 6 forward. When the fragrance drawer 6 enters the drawing chamber 18, the back side of the fragrance drawer 6 will push the operating rod 711 toward one end of the drawer rebounder 71. When the fragrance drawer 6 is closed, the free end of the operating rod 711 can be inserted into the hook 632 of the drawer guide 63 to lock the fragrance drawer 6. Press the drawer cover to release the limit of the operating rod 711 and the hook 632, and the operating rod 711 pushes the fragrance drawer 6 forward again to open and close the fragrance drawer 6. The function of the drawer rebounder 71 is to press and lock the fragrance drawer 6, and press again to unlock it.

[0047] like Figure 1 , Figure 2 , Figure 6 and Fig.13As shown, the drawer control module 7 includes a large gear 72, a small gear 73, a damper 74 and a coil spring 75 in addition to the drawer rebounder 71. The drawer guide 63 is also provided with a coil spring mounting groove 633 on the side corresponding to the hook 632 at the rear end of the drawer lower cover 62. A large gear mounting shaft 634 is provided at the center of the coil spring mounting groove 633. A damping groove 635 is provided on one side of the coil spring mounting groove 633. The drawer guide 63 is also provided with a coil spring pressure ring fixing seat 636 outside the coil spring mounting groove 633. The coil spring 75 is installed in the coil spring mounting groove 633. The pressure ring 751 at the outer end of the coil spring 75 is fixed on the coil spring pressure ring fixing seat 636. 2 is installed on the coil spring 75, the center of the large gear 72 is correspondingly inserted into the large gear installation shaft 634, the damper 74 is installed in the damping groove 635, the center of the damper 74 is provided with a non-circular damping shaft 741 extending upward, the center of the pinion 73 has a non-circular shaft hole 731 corresponding to the damping shaft 741, the shaft hole 731 of the pinion 73 is sleeved on the damping shaft 741, so that the damper 74 can move synchronously with the pinion 73, the pinion 73 is meshed with the large gear 72, and the inner cover 17 of the housing 1 is provided with a rack 172 meshed with the pinion 73 on one side corresponding to the pinion 73, and the pinion 73 can move back and forth on the rack 172. A coil spring 75 is arranged under the large gear 72. The coil spring 75 is energy-storing. The pressure ring 751 at the outer end of the coil spring 75 is fixed on the coil spring pressure ring fixing seat 636. After pressing the fragrance drawer 6 to lock it, the coil spring 75 stores energy. When the fragrance drawer 6 is pressed again and the fragrance drawer 6 pops out, the coil spring 75 releases energy to drive the large gear 72 to rotate. The large gear 72 then drives the small gear 73 to rotate. The small gear 73 cooperates with the rack 172 on the inner cover 17 of the housing 1 to push the entire fragrance drawer 6 outward. A damper 74 is arranged at the bottom of the small gear 73 to rotate synchronously with the small gear 73. The function of the damper 74 is to make the fragrance drawer 6 move more slowly and softly when it is pulled out, so that the fragrance drawer 6 will not move in and out suddenly, and the fragrance drawer 6 will pop out slowly.

[0048] like Figure 1 , Figure 3 , Fig.11 and Fig.12As shown, the inner bottom sides of the housing 13 are also provided with upwardly convex spring beads 91 (springs are provided at the bottom of the balls), and the center of the fragrance drawer 6 is also provided with a drawer spring 93 and a pressing piece 94 for pressing the drawer spring 93. One end of the pressing piece 94 passes through the drawer lower cover 62 and is fixed together with the drawer guide rail 63, and the drawer spring 93 is arranged between the drawer lower cover 62 and the pressing piece 94. When the fragrance drawer 6 is locked in place, the spring beads 91 correspond to the buckles 64 on both sides of the fragrance drawer 6, and push the bottom ends of the buckles 64 upward, so that the fragrance drawer 6 and the sealing member 19 are sealed, thereby achieving the sealing effect of the fragrance drawer 6. When the drawer is pulled out, the fragrance drawer 6 is separated from the spring beads 91, and the elastic force of the drawer spring 93 inside the fragrance drawer 6 pushes the entire fragrance drawer downward, so that a gap is generated between the fragrance drawer 6 and the sealing member 19, thereby reducing friction and making the fragrance drawer 6 withdraw more smoothly.

[0049] like Figure 1 , Figure 8 and Fig. 9 As shown, the fragrance bomb 4 includes a fragrance bomb upper cover 41, a fragrance carrier 42 and a fragrance bomb lower cover 43. The fragrance carrier 42 is arranged in the fragrance bomb lower cover 43. The fragrance bomb upper cover 41 covers the fragrance carrier 42 and the fragrance bomb lower cover 43. The fragrance bomb lower cover 43 is provided with a plurality of air inlet holes 431 connected to the fragrance carrier 42. The fragrance rebounder 5 includes a fragrance spring 51, a hook 52, a slider 53 and a spring 54. Among them, the fragrance spring 51 is used to provide elastic force. The fragrance spring 51 is arranged between the slider 53 and the drawer lower cover 62. The slider 53 is provided with a slope 55 and a groove 57 with a concave angle on one side corresponding to the fragrance bomb 4 (see Figure 1 ), one end of the hook 52 is mounted on the drawer lower cover 62, and the other end is mounted on the slider 53, which is used to clamp the slider 53 so that the slider 53 will not automatically pop out when the fragrance bomb 4 is inserted. When the fragrance bomb 4 is inserted, the hook 52 will move along the groove in the slider 53, and when the hook 52 moves to the concave corner on the upper part of the slider 53, the slider 53 will be fixed. One end of the spring 54 is fixedly mounted on the slider 53, and the other end has a bending portion 56, which faces the fragrance bomb 4. The fragrance bomb lower cover 43 of the fragrance bomb 4 is provided with a bending groove 432 corresponding to the bending portion 56.

[0050] When the fragrance bomb 4 is installed, the fragrance bomb 4 will push the slider 53 of the fragrance rebounder 5 to move downward and compress the spring 51, so that the spring 51 accumulates force, and at the same time the hook 52 will move along the groove 57 in the slider 53. When the hook 52 moves to the concave angle on the upper part of the slider 53, the slider 53 will be fixed, and the spring 54 will move outward due to the restriction of the inclined surface 55 of the slider 53, so that the bending part 56 of the spring is stuck in the bending groove 432 of the fragrance bomb 4, fixing the fragrance bomb 4. When the fragrance bomb 4 needs to be taken out, just press the fragrance bomb 4 again, and the hook 52 will move to the other side along the groove 57 and no longer block the slider 53. Since the spring 51 is always in a compressed state, when the hook 52 no longer blocks the slider 53, the spring 51 will release the elastic force and eject the slider 53 and the fragrance bomb 4 together. It is convenient to take out and replace the fragrance bomb 4.

[0051] The working process of the fragrance mixing device for preventing odor cross-contamination of the present invention is as follows: after the user selects the desired fragrance (which can be a single fragrance or a mixed fragrance) through the control module, the motor 23 on the fragrance bomb 4 corresponding to the fragrance is driven to drive the blade 22 to rotate, open the fragrance inlet blade hole 211 and the fragrance outlet blade hole 212, and the fan 3 is running. The external air enters the air inlet channel 242 of the air duct cover 24 from the air inlet port 11 of the shell 1, and then passes through the fragrance inlet blade hole 211 of the air duct member 21, the through hole of the inner cover 17, the through hole 191 of the sealing member 19, and the air inlet 611 of the fragrance cavity 61 of the fragrance drawer 6, and then passes through the air inlet 11 of the shell 1. The air inlet 431 on one side of the air port 611 enters the fragrance bomb lower cover 43 of the fragrance bomb 4, combines with the fragrance carrier 42 to convert external air into fragrance, and then flows out from the air inlet 431 on the other side of the fragrance bomb lower cover 43, and then passes through the fragrance outlet 612 of the fragrance cavity 61, the through hole of the sealing member 19 corresponding to the fragrance outlet 612, the through hole of the inner cover 17 corresponding to the fragrance bomb 4, and the fragrance outlet blade hole 212 of the air duct member 21 in sequence, and then enters the fragrance mixing cavity 241 of the air duct cover 24. If multiple fragrances are selected, they will be mixed in the fragrance mixing cavity 241, and then enter the fan 3, and the fan 3 will deliver the selected fragrance to the outside of the housing 1.

[0052] If the user only selects a single fragrance, the fragrance mixing chamber 241 only has a single fragrance, which can blow out the fragrance the user needs. The user can adjust the air duct control module 2 through the control module according to his or her preferences to increase one or more of the fragrances, or reduce one or more of the fragrances. When the user adjusts the air duct control module 2, the corresponding motor 23 is driven to drive the blades 22 to rotate, thereby controlling the size of the fragrance inlet blade hole 211 and the fragrance outlet blade hole 212, and the fragrance output of the corresponding fragrance bomb 4 can be adjusted.

[0053] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. An air duct control module, characterized in that: The air duct comprises an air duct member (21), blades (22), a motor (23) and an air duct cover (24); the air duct member (21) is arranged at one end of the fragrance drawer (6) corresponding to the fragrance outlet (612); the air duct member (21) is provided with a fragrance inlet blade hole (211) and a fragrance outlet blade hole (212) corresponding to each air inlet (611) and fragrance outlet (612); each fragrance inlet blade hole (211) and fragrance outlet blade hole (212) is provided with a pair of blades (22); each pair of blades (22) is connected to a motor (23); the blades (22) and the output shaft of the motor (23) are arranged in linkage; one end of the air duct cover (24) is arranged on the air duct member (21); the air duct cover (24) is provided with a fragrance mixing chamber (241) connected to the fragrance outlet blade hole (212); the fragrance mixing chamber (241) is connected to the air inlet of the fan (3).

2. The air duct control module according to claim 1, characterized in that: It also includes a position detection plate (25) connected to the control module, and each blade (22) is installed with a magnet (26); the air duct cover (24) is a double-layer double-ring structure, the inner ring of which is a fragrance mixing chamber (241), and the outer ring is an air inlet channel (242); the fragrance inlet blade hole (211) is connected to the air inlet channel (242), and the fragrance outlet blade hole (212) is connected to the fragrance mixing chamber (241).

3. A fragrance mixing device for preventing odor crosstalk, characterized in that: include: The air duct control module (2), housing (1), fan (3), multiple fragrance bombs (4), fragrance rebounder (5), fragrance drawer (6), drawer control module (7) and control module as described in claim 1 or 2, wherein the housing (1) is provided with an air inlet (11) and a fragrance outlet (12), the fan (3) is connected to the fragrance outlet (12) of the housing (1), the fragrance drawer (6) is drawable and arranged in the housing (1), and multiple fragrance cavities (61) are provided in the fragrance drawer, The fragrance bomb (4) is installed in a fragrance cavity (61); each fragrance cavity (61) of the fragrance drawer (6) is respectively provided with an air inlet (611) and a fragrance outlet (612); the fragrance rebounder (5) is connected to the fragrance bomb (4) to control the fragrance bomb (4) to pop out or lock; the drawer control module (7) has a drawer rebounder (71) installed on the back of the fragrance drawer (6) to control the fragrance drawer (6) to pop out or lock; the control module is connected to the air duct control module (2).

4. The aroma mixing device for preventing odor cross-talk as claimed in claim 1, characterized in that: The housing (1) comprises a shell (13) and an upper cover (14), the upper cover (14) being buckled on the shell (13), the air inlet (11) being arranged on the left and right sides of the upper cover (14), the upper cover (14) being provided with a fan installation cavity (15) for installing a fan (3), the fan (3) being installed in the fan installation cavity (15), and the fragrance outlet (12) being arranged at the front end of the fan installation cavity (15); the shell (13) is also provided with a bottom plate (16) and an inner cover (17), a fragrance outlet (12) being formed between the bottom plate (16) and the inner cover (17) The invention relates to a drawer (18) for the movement of a fragrance drawer (6), a fragrance detection board (8) for detecting a fragrance bomb (4) is installed at the bottom of the drawer (18), and the fragrance detection board (8) is connected to a control module; a sealing member (19) is provided at the top of the drawer (18), and a plurality of through holes (191) corresponding to the fragrance intake leaf holes (211) and the fragrance discharge leaf holes (212) are provided on the sealing member (19); the inner cover (17) is provided with a plurality of through holes corresponding to the fragrance intake leaf holes (211) and the fragrance discharge leaf holes (212), and the sealing member (19) is a soft silicone structure.

5. The aroma mixing device for preventing odor cross-talk as claimed in claim 1, characterized in that: The bottom of the fragrance drawer (6) is provided with a drawer lower cover (62) and a drawer guide rail (63), buckles (64) are provided on both sides of the fragrance drawer (6), and the drawer guide rail (63) is provided with a through buckle hole (65) for inserting the buckle (64), the drawer lower cover (62) is arranged between the drawer guide rail (63) and the bottom surface of the fragrance drawer (6), the drawer lower cover (62) is provided with at least one limiting column (621) at the rear end corresponding to the fragrance drawer (6), and the front end surface of the drawer guide rail (63) has a front baffle (631) extending upward, and the fragrance drawer (6) is installed between the limiting column (621) of the drawer lower cover (62) and the front baffle (631) of the drawer guide rail (63).

6. The aroma mixing device for preventing odor cross-talk as claimed in claim 1, characterized in that: The drawer guide rail (63) is provided with a hook (632) at the rear end of the drawer lower cover (62); the rear end of the inner cover (17) of the outer shell (1) is provided with a rebound fixing seat (171) for mounting the drawer rebounder (71); the rebound fixing seat (171) is connected to the drawer cavity (18); the drawer rebounder (71) is fixed on the rebound fixing seat (171); an operating rod (711) with elastic force is provided on the drawer rebounder (71); one end of the operating rod (711) is rotatably arranged on the drawer rebounder (71); the other end is always ejected outwards under force and toward the hook (632).

7. The aroma mixing device for preventing odor cross-talk as claimed in claim 1, characterized in that: The drawer control module (7) further comprises a large gear (72), a small gear (73) and a coil spring (75); the drawer guide rail (63) is provided with a coil spring installation groove (633) at the rear end of the drawer lower cover (62); a large gear installation shaft (634) is provided at the center of the coil spring installation groove (633); the drawer guide rail (63) is further provided with a coil spring pressure ring fixing seat (636) outside the coil spring installation groove (633); the coil spring (75) is installed in the coil spring installation groove (633); The pressure ring (751) at the outer end of the coil spring (75) is fixed on the coil spring pressure ring fixing seat (636), the large gear (72) is installed on the coil spring (75), the center of the large gear (72) is correspondingly inserted into the large gear installation shaft (634), the small gear (73) is meshed with the large gear (72), and the inner cover (17) of the housing (1) is provided with a rack (172) meshed with the small gear (73) on one side corresponding to the small gear (73), and the small gear (73) moves back and forth along the rack (172).

8. The aroma mixing device for preventing odor cross-talk as claimed in claim 7, characterized in that: The drawer control module (7) further comprises a damper (74), a damping groove (635) is provided on one side of the coil spring installation groove (633), the damper (74) is installed in the damping groove (635), a non-circular damping shaft (741) extending upward is provided at the center of the damper (74), a non-circular shaft hole (731) corresponding to the damping shaft (741) is provided at the center of the pinion (73), and the shaft hole (731) of the pinion (73) is sleeved on the damping shaft (741), so that the damper (74) and the pinion (73) can move synchronously.

9. The aroma mixing device for preventing odor cross-talk as claimed in claim 5, characterized in that: Upwardly convex spring beads (91) are provided on both sides of the inner bottom of the housing (1), and the top of the spring beads (91) abuts against the bottom of the buckle (64) when the fragrance drawer (6) is in a locked state; a drawer spring (93) and a pressing piece (94) for pressing the drawer spring (93) are also provided in the center of the fragrance drawer (6), one end of the pressing piece (94) passes through the drawer lower cover (62) and is fixed to the drawer guide rail (63), and the drawer spring (93) is arranged between the drawer lower cover (62) and the pressing piece (94).

10. The aroma mixing device for preventing odor cross-talk as claimed in claim 1, characterized in that: The fragrance bomb (4) comprises a fragrance bomb upper cover (41), a fragrance carrier (42) and a fragrance bomb lower cover (43), wherein the fragrance carrier (42) is arranged in the fragrance bomb lower cover (43), the fragrance bomb upper cover (41) covers the fragrance carrier (42) and the fragrance bomb lower cover (43), and the fragrance bomb lower cover (43) is provided with a plurality of air inlet holes (431) connected to the fragrance carrier (42); the fragrance rebounder (5) comprises a fragrance spring (51), a draw hook (52), a slider (53) and a spring (54), wherein the fragrance The spring (51) is arranged between the slider (53) and the drawer lower cover (62); a side of the slider (53) corresponding to the fragrance bomb (4) is provided with an inclined surface (55); the pull hook (52) is installed on the drawer lower cover (62) and is fixed relative to the slider (53); one end of the spring sheet (54) is fixedly installed on the slider (53) and the other end has a bent portion (56); the bent portion (56) faces the fragrance bomb (4); and a bent groove (432) corresponding to the bent portion (56) is provided on the fragrance bomb lower cover (43) of the fragrance bomb (4).

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