A method for delivering aroma

Abstract

The present invention discloses a method for delivering aroma, which is realized through an air duct; a plurality of aroma-emitting bodies with different aromas are respectively placed in a plurality of independent switch door structures in the air duct; a control device selects to open the air holes symmetrically arranged on both sides of the independent switch door structure where the corresponding aroma-emitting body is located according to the required aroma, and controls the opening angle of the air holes according to the required aroma concentration; wind is blown into the air duct from one end of the air duct, the wind enters the corresponding aroma-emitting body and mixes with the aroma, and the wind carrying the aroma returns to the air duct and is blown out from the other end of the air duct. The present invention can adjust the aroma concentration of the aroma-emitting body according to the user's preference, and can realize the combination of different aromas, and can also realize quick switching between different aromas.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to a fragrance delivery method. Background Art

[0002] Under the influence of the 5G era, products in the automotive industry are also developing in the direction of intelligence and entertainment to better meet the needs of modern and future young people.

[0003] However, the car aromatherapy machines currently on the market only have a single air duct and can only emit one fragrance. Although there are car aromatherapy machines with changeable fragrances, the fragrance can only be changed manually and cannot be automatically switched intelligently. Users cannot mix and match multiple fragrances to diffuse fragrance according to their own preferences. Moreover, as the use time increases, people's sense of smell will feel that the fragrance concentration decreases after adaptation, which greatly affects the use effect. The existing aromatherapy machines are also unable to adjust the fragrance concentration during use. Summary of the invention

[0004] In view of the above-mentioned technical problems existing in the air duct of the existing vehicle-mounted aromatherapy machine, the present invention provides a fragrance delivery method, which can not only automatically switch the fragrance, but also adjust the fragrance concentration.

[0005] The technical solution of the present invention is:

[0006] A method for delivering fragrance, which is implemented through an air duct; a plurality of fragrance-emitting bodies with different fragrances are respectively placed in a plurality of independent switch door structures in the air duct; a control device opens air holes symmetrically arranged on both sides of the independent switch door structures where the corresponding fragrance-emitting bodies are located according to the required fragrance, and controls the opening angles of the air holes according to the required fragrance concentration; wind is blown into the air duct from one end of the air duct, the wind enters the corresponding fragrance-emitting body and mixes with the fragrance, and the wind carrying the fragrance returns to the air duct and is blown out from the other end of the air duct.

[0007] Furthermore, the independent opening and closing door structure includes a perfume door, a perfume holder and a rotating device; the perfume door is mounted on the perfume holder, the fragrance body is placed in the perfume holder, and the bottom of the perfume door is connected to the rotating device; the perfume door is symmetrically provided with first vents on two opposite sides, and the perfume holder is symmetrically provided with second vents on two opposite sides, and when the first vents overlap with the second vents, the air hole for the fragrance body to enter and exit is formed; the control device controls the rotating device to drive the perfume door to rotate relative to the perfume holder, and adjusts the opening size of the air hole.

[0008] Furthermore, rotating teeth are provided at the bottom of the ointment door, and the rotating device includes gears and a stepper motor; the output end of the rotating shaft of the stepper motor is meshed with the rotating teeth of the ointment door through the gears, and the stepper motor drives the ointment door to rotate under the control of the control device.

[0009] Furthermore, when the air hole is opened, two vertical ribs symmetrically arranged on the outer side of the cream door between the two first ventilation openings turn to the side walls of the air duct respectively, blocking the gap between the cream door and the side walls of the air duct, so that the wind changes its direction completely or partially and enters the fragrance body.

[0010] Furthermore, under the control of the control device, the wind is blown into the air duct by a blower, and the air volume is controlled according to the required fragrance concentration.

[0011] Furthermore, a perfume identification contact PCBA board is provided on the inner side of the top of the fragrance body, and the perfume identification contact PCBA board includes a storage module and a remaining module, the storage module is used to store the fragrance information of the fragrance body, and the remaining module is used to measure the remaining perfume in the fragrance body; the perfume identification contact PCBA board transmits the fragrance information and the perfume remaining information to the control device, and the user selects the fragrance according to the fragrance information and the perfume remaining information, and controls the fragrance and adjusts the fragrance concentration through the control device.

[0012] Furthermore, the control device includes a button and a main PCBA board; the main PCBA board is provided with an adjustment module, and the output end of the adjustment module is electrically connected to the control end of the stepper motor; the button is arranged outside the air duct and is electrically connected to the adjustment module, and the button is used to manually input the action parameters of each stepper motor to adjust the rotation angle of the ointment door.

[0013] Furthermore, the control device also includes a voice module, which is used to voice input operation instructions to the main PCBA board to adjust the rotation angle of the ointment door.

[0014] The beneficial effects of the present invention are:

[0015] The aroma delivery method of the present invention can not only realize the quick switching between different aromas by the user through the independent control of multiple independent switch door structures, but also can adjust the concentration of the aroma emitted by the aroma emitter according to the user's preference, and can realize the free combination of multiple aromas, realize the aroma dispersion of mixed aromas, and improve the user's interest in use. The present invention can also adjust the concentration of the aroma by controlling the blower through the control device and adjusting the air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The advantages of the above and / or additional aspects of the present invention will become apparent and easily understood in the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 An exploded view of the rearview mirror aroma diffuser of the present invention;

[0018] Figure 2 It is a schematic diagram of the present invention with the ointment door removed;

[0019] Figure 3 This is a schematic diagram of the structure of the ointment door assembly in the present invention;

[0020] Figure 4 It is a schematic diagram of the air duct structure of the rearview mirror aroma diffuser of the present invention;

[0021] Figure 5 It is a split schematic diagram of the air duct structure in the rearview mirror aromatherapy machine of the present invention;

[0022] Figure 6 It is a schematic diagram of the internal air duct of the rearview mirror aroma diffuser of the present invention;

[0023] Figure 7 It is a bottom view of the rearview mirror aroma diffuser of the present invention;

[0024] Figure 8 It is an exploded view of the fragrance body of the present invention;

[0025] Fig. 9 It is a schematic diagram of the buckle cooperation between the fragrance emitter and the self-locking switch in the present invention;

[0026] Fig.10 It is a schematic diagram of the fragrance body and the self-locking switch buckle being separated in the present invention;

[0027] Fig.11 This is a schematic diagram of the assembly of the fragrance body and TYPE-C-PCBA in the present invention;

[0028] Fig.12 It is a cross-sectional schematic diagram of the installation position of the speaker in the rearview mirror aroma diffuser of the present invention;

[0029] Fig.13 It is a schematic diagram of the working principle of the rearview mirror aroma diffuser of the present invention;

[0030] Fig.14 This is a schematic diagram of the structure of an ointment door according to another embodiment of the present invention.

[0031] Among them: 1-ointment door, 2-ointment bracket, 3-back cover, 4-air duct back cover, 5-fragrance body, 6-gear, 7-stepping motor, 8-motor bracket, 9-EVA foam, 10-reflector, 11-front cover, 12-fan bracket, 13-air duct front cover, 14-blower, 15-silicone sleeve, 16-first vent, 17-second vent, 18-vertical ribs, 19-fragrance outlet, 20-air inlet, 21-ointment cover, 22 -hook, 23-ointment middle cover, 24-ointment lower cover, 25-ointment identification contact PCBA board, 26-self-locking switch buckle, 27-TYPE-C-PCBA board, 28-button, 29-main PCBA board, 30-TYPE-C plug, 31-silicone tube, 32-light guide column A, 33-light guide column B, 34-panel display PCBA board, 35-speaker, 36-speaker hole, 37-lithium battery, 38-MIC. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0034] This embodiment provides a method for delivering aroma, which is suitable for automatic switching of multiple aromas and delivery of mixed aromas of several aromas.

[0035] The delivery method is implemented through an air duct, with an air inlet at one end of the air duct and an air outlet at the other end. A plurality of independent switch door structures are provided in the air duct, and a plurality of fragrance-emitting bodies of different fragrance types are respectively installed in the plurality of independent switch door structures. Air holes are symmetrically provided on both sides of the independent switch door structures, and the opening and closing of the air holes and the opening angle of the air holes are controlled by a control device. After one or more independent switch door structures open the air holes, the wind sucked into the air duct from the air inlet enters the independent switch door structure from the air hole on one side, and enters the air duct again from the air hole on the other side after carrying the fragrance. If the wind blows through multiple independent switch door structures, the wind is mixed during the flow process, and then blown out from the air outlet to emit the fragrance outward. When the fragrance is delivered, the independent switch door structure controls the size of the air hole according to the required fragrance concentration.

[0036] This embodiment takes an aroma diffuser installed in a rearview mirror as an example to explain the aroma delivery method in detail, which can adjust the delivered aroma and the concentration of the aroma of the aroma-emitting body according to the user's preferences.

[0037] like Figure 1 As shown, the aromatherapy machine includes an aromatherapy cream door 1, an aromatherapy cream holder 2, a back cover 3, an air duct back cover 4, an aromatherapy body 5, a gear 6, a stepper motor 7, a motor holder 8, EVA foam 9, a reflector 10, a front cover 11, a fan holder 12, an air duct front cover 13, a blower 14 and a silicone sleeve 15.

[0038] The ointment door 1, the ointment bracket 2, the gear 6, and the stepping motor 7 constitute the ointment door assembly. Figures 1 to 3 As shown, the ointment door assembly is arranged on the motor bracket 8, and the motor bracket 8 is mounted on the bottom plate of the rear cover 3, which is provided with at least two groups of aromatherapy mounting holes and motor mounting holes, the ointment bracket 2 is placed on the aromatherapy mounting holes and fixed to the motor bracket 8 by screws, the stepper motor 7 is placed in the motor mounting holes and fixed to the motor bracket 8 by screws, the ointment door 1 is sleeved on the ointment bracket 2, and its bottom is provided with rotating teeth, and the output end of the rotating shaft of the stepper motor 7 is meshed and connected with the rotating teeth of the ointment door 1 through the gear 6, so as to form a rotating device. The ointment door 1 is symmetrically provided with first vents 16 on the opposite sides, and the ointment bracket 2 is symmetrically provided with second vents 17 on both sides, and the overlapping area of ​​the first vent 16 and the second vent 17 is the air hole for the air inlet and outlet of the fragrance body 5, and the ointment door 1 can rotate relative to the ointment bracket 2 under the drive of the rotating device, and the size of the air hole can be adjusted to make the air hole in an open or closed state, or adjust the opening angle (i.e., the rotation angle of the ointment door 1 relative to the ointment bracket 2).

[0039] The EVA foam 9 is pasted between the motor bracket 8 and the bottom plate of the rear cover 3, which is helpful to alleviate the vibration frequency and noise of the stepper motor 7 when working. The lower part of the fragrance body 5 with multiple different fragrances is placed in the motor bracket 8, and the upper part is placed in the cream bracket 2, and the cream door assembly forms an independent opening and closing door structure of the fragrance body 5.

[0040] On the front and rear sides of the perfume door assembly, the stoppers of the air duct front cover 13 and the air duct rear cover 4 are aligned and snapped together. The air duct front cover 13 and the air duct rear cover 4 are respectively fixed to the motor bracket 8 with screws, and the perfume door assembly is wrapped between the air duct front cover 13 and the air duct rear cover 4. Thus, the perfume door 1, the perfume bracket 2, the air duct rear cover 4, the air duct front cover 13 and other air duct components form the air duct of the aromatherapy machine. In this embodiment, the wind direction in the air duct is as follows Figure 4 and Figure 5 In addition, two vertical ribs 18 are symmetrically arranged between the two first vents 16 on the outer side of the perfume door 1. When the first vent 16 is located in the middle of the air duct, the outer side of the vertical ribs 18 contacts the inner side of the air duct rear cover 4 and the air duct front cover 13, which is used to separate the air duct and promote the air flow to the inside of the fragrance body 5.

[0041] The silicone sleeve 15 is installed at one end of the air duct, and the air outlet of the blower 14 is inserted through the opening on the silicone sleeve 15, blowing air into the air duct, which helps to accelerate the release of the fragrance of the fragrance body 5. Specifically, the silicone sleeve 15 can be inserted into the square hole above the air duct through the square step. The center of the silicone sleeve 15 has a square hole. The air outlet of the blower 14 is square, and the air outlet of the blower 14 is inserted through the square hole. The connection of the square structure can greatly ensure the stability of the plug-in connection. Figure 6 As shown, after the blower 14 is tilted to the left at a certain angle, the air outlet is inserted into the square hole of the silicone sleeve 15 so as to blow air into the aromatherapy machine.

[0042] The front cover 11 is aligned with the four side edges of the rear cover 3. The front cover 11 is buckled on the rear cover 3. The rear cover 3 and the front cover 11 form the shell of the aromatherapy machine. The perfume door assembly in the shell is installed on the bottom plate of the rear cover 3 through the motor bracket 8. Among them, the front cover 11 is provided with a lens groove on the front side, and double-sided adhesive is pasted in the lens groove. The back of the reflector 10 faces the lens groove, and the reflector 10 is embedded in the lens groove by double-sided adhesive. The bottom plate of the rear cover 3 is provided with a fragrance outlet 19 and an air inlet 20 on both sides (see Figure 7 ), used for dispersing fragrance and taking in air. In this embodiment, a plurality of screw columns are provided on the inner side of the rear cover 3, and screw holes are provided on the rear side of the air duct rear cover 4. The air duct rear cover 4 is fixedly connected to the rear cover 3 by screws passing through the screw holes and then screwing into the screw columns.

[0043] Above the air inlet 20, a screw column is provided on the bottom plate of the rear cover 3, and the fan bracket 12 is installed on the bottom plate by screwing the screw into the bolt column, and the blower 14 is installed at one end of the housing through the fan bracket 12. When the air hole is in the open state, the air blown by the blower 14 passes through the second vents 17 on both sides of the perfume holder 2 and blows into the fragrance body 5, and the airflow mixed with the fragrance enters the air duct and is blown out from the fragrance outlet 19.

[0044] The fragrance body 5 used in this embodiment is as follows Figures 8 to 11 As shown, it includes an ointment upper cover 21, a hook 22, an ointment middle barrel 23 and an ointment lower cover 24. The ointment upper cover 21 and the ointment lower cover 24 are respectively installed at the upper and lower ends of the ointment middle barrel 23. The ointment is loaded in the ointment middle barrel 23. The side wall of the ointment middle barrel 23 is hollow to facilitate the diffusion of fragrance.

[0045] A base plate is provided at the bottom of the ointment upper cover 21, and an ointment identification contact PCBA board 25 is arranged on the base plate. The ointment identification contact PCBA board 25 includes a storage module and a balance module. The storage module stores the fragrance information of the ointment loaded in the ointment barrel 23, and the balance module is used to measure the ointment remaining in the ointment barrel 23.

[0046] The hook 22 is clamped at the center of the bottom plate. A mushroom head is provided at the center of the hook 22 . The mushroom head extends upward from the bottom plate through the center hole of the bottom plate to be clamped with the self-locking switch buckle 26 .

[0047] The aromatherapy machine of this embodiment further includes a control device, which includes a TYPE-C-PCBA board 27 , a button 28 and a main PCBA board 29 .

[0048] TYPE-C-PCBA board 27 is arranged at the top of the housing, which is connected by TYPE-C plug 30 (see Fig.12 ) and the PCBA board are electrically connected. A runway-shaped hole is provided at the top inner side of the rear cover 3, and a TYPE-C plug 30 is embedded in the runway-shaped hole and fixed with screws. The TYPE-C-PCBA board 27 is installed on the rear cover 3. The TYPE-C plug 30 is used to connect the aromatherapy machine with external devices (such as a USB flash drive, a mobile phone, a vehicle hollow station, etc.). The PCBA board is electrically connected to the main PCBA board 29 and the blower 14 respectively. When the aromatherapy machine needs to diffuse fragrance, the TYPE-C-PCBA board 27 controls the blower 14 to turn on, and can adjust the intensity of the fragrance of the fragrance body 5 by the amount of air blown in by the blower 14, that is, when the air volume is small, the fragrance concentration is low; when the air volume is large, the fragrance concentration is high.

[0049] like Fig.11 As shown, the self-locking switch buckle 26 is fixed on the TYPE-C-PCBA board 27, and multiple self-locking switch buckles 26 are respectively aligned with multiple aromatherapy installation holes. In addition, the TYPE-C-PCBA board 27 is also provided with a positioning hole, which matches the positioning column provided on the upper end of the ointment holder 2 and is fixed with screws to ensure the installation accuracy of the ointment holder 2. At the same time, the PCBA board is also provided with multiple spring pins, which are connected to the ointment identification contact PCBA board 25 on the fragrance body 5 through the spring pins. The ointment identification contact PCBA board 25 transmits the fragrance type information and the ointment remaining information to the main PCBA board 29 through the TYPE-C-PCBA board 27.

[0050] The main PCBA board 29 is arranged in the housing and is connected to the TYPE-C-PCBA board 27 and multiple stepper motors 7 respectively. Multiple adjustment modules are arranged on the main PCBA board 29, and the output end of the adjustment module is electrically connected to the control end of the stepper motor 7. The button 28 is installed in the button hole under the front cover 11 and is electrically connected to the adjustment module. The user can set the action parameters of each stepper motor 7 through the button 28, and adjust the opening angle of the balm door 1 by adjusting the rotation of the stepper motor 7.

[0051] In addition, the main PCBA board 29 is provided with positioning holes, which match the positioning posts on the air duct front cover 13, and the main PCBA board 29 is positioned and fixed on the air duct front cover 13 and fixed by screws. A silicone tube 31 is installed on one side of the main PCBA board 29, and the cables connecting the main PCBA board 29 with other components pass through the silicone tube 31 and are connected to each component. The silicone tube 31 can prevent the cables from loosening due to vibration.

[0052] In addition, the control device also includes a light guide column A32, a light guide column B33 and a panel display PCBA board 34. The panel display PCBA board 34 matches the internal card slot of the front cover 11 and is inserted into the front cover 11. The panel display PCBA board 34 is connected to the corresponding socket on the main PCBA board 29 through a flat cable to display the working status of the aromatherapy machine. The long cylinders on the multiple light guide columns B33 are respectively inserted into the single circular hole on the left side of the front cover 11, and are parallel to the front cover 11 in the horizontal position, and are used to guide the light of the LED lamp on the panel display PCBA board 34 out of the shell and evenly diffuse it to the outside of the shell. In this embodiment, the number of light guide columns B33 is 2, and the long cylinder of one light guide column A32 is inserted into the single circular hole on the right side of the front cover 11.

[0053] The aromatherapy machine also includes a voice module for implementing voice control of the aromatherapy machine. The voice module includes a speaker 35 and a MIC (microphone) 38 (see Figure 7 ), the speaker 35 and MIC38 are connected to the main PCBA board 29 respectively. The speaker 35 is set at the bottom of the shell for playing voice. The speaker 35 is fixed to the circular step on one side of the inside of the back cover 3 with EVA double-sided adhesive. The outlet plug of the speaker 35 is inserted into the corresponding socket on the main PCBA board 29. At the same time, the outlet line of the speaker 35 is inserted into the card slot in the back cover 3 to avoid cluttered lines. A speaker hole 36 corresponding to the position of the speaker 35 is provided on the side of the shell (see Fig.12 ), outputs the sound from the speaker 35 to the outside. MIC38 is arranged on the panel display PCBA board 34, and is assembled on the front cover 11 together with the panel display PCBA board 34. The front cover 11 is provided with a sound pickup hole corresponding to the position of MIC38 for receiving the user's command.

[0054] The aromatherapy machine also includes a lithium battery 37, which is attached to the groove of the fan bracket 12 by EVA double-sided adhesive. The plug of the lithium battery 37 is inserted into the corresponding socket on the main PCBA board 29 to power the aromatherapy machine.

[0055] like Fig.13 As shown, the aroma delivery method of the aroma diffuser is now described by taking three aroma bodies 5 (respectively aroma bodies A, B, and C) as an example.

[0056] Take fragrance body C as an example to illustrate the method of delivering a single fragrance. Figure 6The direction of the middle arrow is the flow direction of the air blown by the blower 14, as follows:

[0057] 1. Turn on the aromatherapy machine, and the blower 14 sucks air from the air inlet 20 and blows it into the air duct through the air outlet of the blower 14;

[0058] 2. Press the button 28 corresponding to the fragrance body A and B, the main PCBA board 29 controls the stepper motor 7 to close the air holes of the fragrance body A and B (i.e., there is no overlapping area between the first ventilation hole 16 and the second ventilation hole 17), and the vertical ribs 18 on the side of the perfume door 1 of the fragrance body A and B rotate to the middle of the air duct (i.e., between the two fragrance bodies 5), and the wind entering the air duct blows through the gap between the side of the fragrance body A and B and the air duct assembly;

[0059] 3. Press the button 28 corresponding to the fragrance body C, the main PCBA board 29 controls the stepper motor 7 to open the air hole of the fragrance body C (i.e., the overlapping area of ​​the first ventilation hole 16 and the second ventilation hole 17), and the vertical rib 18 on the side of the perfume door 1 of the fragrance body C rotates to the gap between the side of the perfume door 1 and the air duct component (when the air hole is fully opened, the vertical rib 18 completely blocks the gap, and when the air hole is partially opened, it blocks part of the gap), part or all of the wind is blown into the fragrance body C from the air hole on the right side of the fragrance body C to mix with the fragrance, and then blown out from the air hole on the left side of the fragrance body C with the fragrance, and enters the air duct outside the left side of the fragrance body C;

[0060] 4. The wind carries the fragrance of the fragrance body C and blows it out from the fragrance outlet 19 to achieve fragrance diffusion.

[0061] During the fragrance diffusion process, if you need to adjust the concentration of the fragrance, you can adjust the opening angle of the air hole by pressing the button 28 (such as inputting the adjustment instructions of the stepper motor by multiple short presses or long presses) or by inputting the adjustment instructions of the stepper motor 7 corresponding to the fragrance body C in voice form through the voice module.

[0062] When the fragrance needs to be changed, close the air holes of the fragrance body C and open the air holes of the fragrance body A or fragrance body B.

[0063] When two or three kinds of aromas are mixed and diffused, during the aroma delivery process, the stepper motors 7 corresponding to the aroma fragrance emitting bodies are started, the air holes corresponding to the selected aroma fragrance emitting bodies are opened, and the opening angle of the air holes is controlled, and the air holes of the unselected aroma fragrance emitting bodies are closed.

[0064] When the fragrances of fragrance bodies A and B are mixed and dispersed, air is sucked in from the air inlet through the blower 14 and blown into the air duct, opening the air holes of fragrance bodies A and B, controlling the opening angle of the air holes, and closing the air holes of fragrance body C; part or all of the wind enters fragrance body A in turn, carries fragrance A, and then enters the air duct on the left side of fragrance body A and blows toward fragrance body B; part or all of the wind enters fragrance body B again, carries fragrance B, and then enters the air duct on the left side of fragrance body B and blows toward fragrance body C, flowing through the gap between the side of the perfume door 1 on the outside of fragrance body C and the air duct assembly; the wind mixes the two fragrances A and B during the flow to form a mixed fragrance, which is blown out from the fragrance outlet 19, realizing the dispersion of fragrance and DIY modulation of fragrance.

[0065] Or in another embodiment, the outer side of the ointment door 1 is not provided with vertical ribs 18, and above the rotating teeth between the two first vents 16, such as Fig. 9 As shown, the side of the balm door 1 is symmetrically provided with an arc surface structure, the top of which contacts the inner side of the air duct rear cover 4 and the air duct front cover 13, and is used to separate the air duct. When the balm door 1 rotates, as the rotation angle of the balm door 1 changes, the distance between the top end of the arc surface structure (the arc surface tangent point closest to the air duct assembly) and the air duct assembly changes accordingly, thereby adjusting the gap between the side of the balm door 1 and the air duct assembly.

[0066] The curvature radius ρ of the curved surface structure on the ointment door 1 can be calculated according to the following formula:

[0067]

[0068] Where ρ0 is the radius of the minor axis, C is the air duct adjustment constant, and Φ is the distance between any point on the surface and the midpoint of the rotating axis relative to the minor axis of the arc mechanism ( Fig. 9 The value range of Φ is [0, π / 2]. Preferably, the value range of Φ is [π / 6, π / 2]. Here, only the size of the angle is considered, and the direction of the angle is not considered. When converted to the polar coordinate system, it is:

[0069]

[0070] in, is the polar coordinate of any point on the surface, the origin of the polar coordinate is the rotation axis, The initial position of the angle is any minor axis, It represents the remainder of the polar coordinate angle value with respect to π / 2.

[0071] The use of such a curved surface structure can solve the problem in the rotary adjustment method that when the arc structure rotates to different angles, the air duct becomes narrower (or wider) by different degrees corresponding to the unit rotation angle. During the rotation of the balm door 1, the rotation angle and the air duct formed by the side wall of the air duct assembly can be more evenly progressive, so that the balm door 1 and the channels on both sides can be changed synchronously.

[0072] In the present invention, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] The shapes of various components in the drawings are schematic, and certain differences from their actual shapes are not excluded. The drawings are only used to illustrate the principles of the present invention and are not intended to limit the present invention.

[0074] Although the present invention is disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are merely exemplary and are not intended to limit the application of the present invention. The scope of protection of the present invention is defined by the appended claims and may include various modifications, alterations and equivalents made to the invention without departing from the scope and spirit of the present invention.

Claims

1. A method for delivering aroma, It is characterized in that The aroma delivery method is implemented through an air duct; a plurality of aroma bodies (5) of different aroma types are respectively placed in a plurality of independent switch door structures in the air duct; the independent switch door structure comprises an ointment door (1), an ointment bracket (2) and a rotating device; the ointment door (1) is sleeved on the ointment bracket (2), and the ointment bracket (2) is fixed on the aromatherapy mounting hole of the motor bracket (8); the lower part of the aroma body (5) is placed in the aromatherapy mounting hole, and the upper part is placed in the ointment bracket (2); the bottom of the ointment door (1) is connected to the rotating device; the ointment door (1) is symmetrically provided with first ventilation holes (16) on opposite sides, and the ointment bracket (2) is symmetrically provided with second ventilation holes (17) on opposite sides, and when the first ventilation holes (16) and the second ventilation holes (17) overlap, they form air holes for air inlet and outlet of the aroma body (5); the control device selects the desired aroma according to the desired aroma. The corresponding rotating device is selectively controlled to drive the perfume door (1) to rotate relative to the perfume holder (2), open the air holes symmetrically arranged on both sides of the independent switch door structure where the perfume body (5) is located, and control the opening angle of the air holes according to the required fragrance concentration. At the same time, two vertical ribs (18) symmetrically arranged on the outer side of the perfume door (1) between the two first ventilation openings (16) are respectively turned to the side walls of the air duct to block the gap between the perfume door (1) and the side walls of the air duct, and change the wind direction of all or part of the wind to enter the perfume body (5); the wind is blown into the air duct from one end of the air duct, the wind enters the corresponding perfume body (5) from the air holes on one side of the corresponding independent switch door structure to mix with the fragrance, and the wind carrying the fragrance passes through the air holes on the other side of the corresponding independent switch door structure and returns to the air duct to be blown out from the other end of the air duct.

2. The aroma delivery method according to claim 1, It is characterized in that The bottom of the ointment door (1) is provided with rotating teeth, and the rotating device comprises a gear (6) and a stepper motor (7); the output end of the rotating shaft of the stepper motor (7) is meshed with the rotating teeth of the ointment door (1) through the gear (6), and under the control of the control device, the stepper motor (7) drives the ointment door (1) to rotate.

3. The aroma delivery method according to claim 1, It is characterized in that Under the control of the control device, the wind is blown into the air duct by a blower (14), and the air volume is controlled according to the required fragrance concentration.

4. The aroma delivery method according to claim 1, It is characterized in that A perfume paste identification contact PCBA board (25) is provided on the inner side of the top of the perfume body (5), and the perfume paste identification contact PCBA board (25) comprises a storage module and a remaining module, the storage module is used to store the fragrance type information of the perfume body (5), and the remaining module is used to measure the remaining perfume paste in the perfume body (5); the perfume paste identification contact PCBA board (25) transmits the fragrance type information and the perfume paste remaining information to the control device, and the user selects the fragrance type according to the fragrance type information and the perfume paste remaining information, and controls the fragrance dispersion and adjusts the fragrance concentration through the control device.

5. The aroma delivery method according to claim 1, It is characterized in that The control device comprises a button (28) and a main PCBA board (29); the main PCBA board (29) is provided with an adjustment module, the output end of the adjustment module is electrically connected to the control end of the stepper motor (7); the button (28) is arranged outside the air duct and is electrically connected to the adjustment module, and the button (28) is used to manually input the action parameters of each stepper motor (7) to adjust the rotation angle of the ointment door (1).

6. The aroma delivery method according to claim 5, It is characterized in that The control device further comprises a voice module, the voice module being used to input operation instructions into the main PCBA board (29) by voice, so as to adjust the rotation angle of the ointment door (1).

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