Diffuser

Abstract

[Problem] To provide a diffuser with which contamination of a fragrance can be suppressed. [Solution] According to one aspect of the present invention, provided is a diffuser comprising: a plurality of fragrance accommodation units configured so as to accommodate fragrances and emit the fragrances into a mixing space, which is an open space into which the fragrances can be diffused; and an air blowing unit configured so as to feed air toward the mixing space.

Description

Diffuser

[0001] The present invention relates to a diffuser.

[0002] As disclosed in Patent Document 1, a diffuser that mixes and sprays a plurality of fragrances is known.

[0003] Japanese Patent Application Laid-Open No. 2021-192906

[0004] In the diffuser described above, multiple oils (fragrances) are mixed in the mixing chamber, causing the fragrance to adhere to the inner surface of the mixing chamber. As a result, when changing the fragrance to be used, there is a risk of contamination between the fragrance used previously and the new fragrance to be used.

[0005] In view of the above circumstances, the present invention provides a diffuser that can suppress contamination of fragrances.

[0006] According to one aspect of the present invention, there is provided a diffuser comprising a plurality of fragrance storage sections configured to store fragrance and each release fragrance into a mixing space, which is an open space in which the fragrance can be diffused, and a blower section configured to send air toward the mixing space.

[0007] According to this embodiment, the fragrances are mixed in the open space outside the diffuser, which prevents the fragrance from adhering to the interior of the diffuser, thereby preventing contamination of the fragrance used previously with the fragrance to be used again.

[0008] 5 is a schematic front view of the diffuser 1 according to the present embodiment. FIG. 6 is a schematic rear view of the diffuser 1 according to the present embodiment. FIG. 7 is a schematic plan view of the diffuser 1 according to the present embodiment. FIG. 8 is a schematic bottom view of the diffuser 1 according to the present embodiment. FIG. 9 is a schematic cross-sectional view of the diffuser 1 according to the present embodiment, taken along a cross section parallel to the vertical direction. FIG. 10 is a schematic plan view for explaining the arrangement of the fragrance storage unit 3 in the diffuser 1. FIG. 11 is a part of the schematic cross-sectional view taken along line V-V in FIG. 6. FIG. 12 is a partial enlarged view of the wing in the cross-sectional view of FIG. 5. FIG. 13 is a block diagram showing the hardware configuration of the control unit 10. FIG. 14 is a graph showing an example of adjustment of the amount of fragrance emitted by the control unit 10. FIG. 15 is a graph showing another example of adjustment of the amount of fragrance emitted by the control unit 10. FIG. 16 is a graph showing yet another example of adjustment of the amount of fragrance emitted by the control unit 10.

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. Various features shown in the following embodiments can be combined with each other.

[0010] <Diffuser> Fig. 1 is a schematic front view of a diffuser 1 according to this embodiment. Fig. 2 is a schematic rear view of the diffuser 1 according to this embodiment. Fig. 3 is a schematic plan view of the diffuser 1 according to this embodiment. Fig. 4 is a schematic bottom view of the diffuser 1 according to this embodiment. Fig. 5 is a schematic cross-sectional view of the diffuser 1 according to this embodiment, taken along a line parallel to the vertical direction.

[0011] The diffuser 1 is configured to supply air in which multiple types of fragrances have been diffused and mixed. As shown in Figures 1 to 5, the diffuser 1 includes a housing 2, multiple fragrance storage units 3, a blower unit 4, and a control unit 10.

[0012] 1 is a cylindrical member in which the blower 4 (described later) is disposed. The housing 2 includes a main body 21 and a plurality of bases 22.

[0013] As shown in Figure 1, the main body 21 is a cylinder having a central axis that is parallel to the vertical direction (i.e., extends in the up-down direction) when the diffuser 1 is in use. An air flow path 41 (see Figure 5) of the air blower 4, which will be described later, is arranged inside the main body 21 (i.e., the hollow portion). Air is exhausted upward from the upper end of the main body 21 by the air blower 4. The main body 21 also houses a battery, electrical circuits, a drive source (motor), etc.

[0014] 3, a plurality of pedestals 22 are provided on the outer peripheral surface of the housing 2. A plurality of fragrance-containing units 3, which will be described later, are attached to each of the plurality of pedestals 22. This configuration allows the diffuser 1 to be made compact, and allows the fragrance-containing units 3 to be easily replaced.

[0015] Each of the plurality of pedestals 22 is a holder configured to detachably hold the fragrance-containing unit 3. The plurality of pedestals 22 are arranged on the outer peripheral surface of the main body 21 so as to be aligned in the circumferential direction of the main body 21. Specifically, each pedestal 22 is configured by a portion where the outer peripheral surface (i.e., tapered surface) of the reduced diameter portion of the main body 21 is recessed radially inward. The reduced diameter portion of the main body 21 is provided at the upper end of the main body 21, and is a portion that reduces in diameter toward the upper end (air exhaust port).

[0016] The base 22 has, for example, an engaged portion (e.g., a recessed portion into which the claw engages) that can engage with an engaging portion (e.g., a protruding portion such as a claw) provided on the fragrance storage unit 3. The base 22 also has a terminal for supplying power (voltage) to the fragrance storage unit 3 for atomizing the fragrance.

[0017] <Fragrance-containing section 3> Each of the plurality of fragrance-containing sections 3 contains a fragrance. As shown in Fig. 1 , each of the plurality of fragrance-containing sections 3 is configured to release the fragrance into a mixing space S, which is an open space in which the fragrance can diffuse.

[0018] The fragrance storage unit 3 has a container 31 and a nozzle 32. The container 31 is a cylindrical member that stores a liquid fragrance. The containers 31 of the multiple fragrance storage units 3 each store a different type of fragrance.

[0019] The nozzle 32 is configured to atomize the fragrance in the container 31 and release the atomized fragrance upward (toward the mixing space S). The nozzle 32 atomizes the fragrance, for example, by using power supplied from the housing 2. A known atomization method can be used, for example, vibration using high frequency waves (ultrasonic waves).

[0020] The aromatic storage unit 3 is attached to the housing 2 with the release outlet 32A of the nozzle 32 facing upward. The height of the release outlet 32A of the nozzle 32 of each of the aromatic storage units 3 (i.e., the position in the axial direction of the housing 2) is the same. The direction in which the aromatic is released from the nozzle 32 intersects the vertical direction (i.e., is inclined relative to the vertical direction).

[0021] The fragrance-containing unit 3 is a replaceable cartridge in which the user selects a fragrance of their choice and attaches it to the housing 2. When the fragrance in the container 31 is consumed, the fragrance is replenished by the user replacing the fragrance-containing unit 3. The fragrance-containing unit 3 may be configured so that the entire fragrance-containing unit 3 is replaceable, or so that only the container 31 is replaceable.

[0022] FIG. 6 is a schematic plan view illustrating the arrangement of the fragrance-containing units 3 in the diffuser 1. As shown in FIG. 6, the diffuser 1 may include three or more fragrance-containing units 3, each having a fragrance outlet 32A arranged on a single imaginary circle VC. The center P of the imaginary circle VC is a point on the central axis of the air passage 41 of the air blower 4 (described below) (i.e., a point on the central axis of the main body 21), and coincides with the center of a circle formed by a cross section perpendicular to the axial direction of the air passage 41 in a plan view. This configuration can prevent uneven mixing of the fragrances released from the multiple fragrance-containing units 3. The multiple fragrance-containing units 3 are arranged to radially surround the air passage 41 from the outside.

[0023] In the example of FIG. 6, the diffuser 1 includes eight fragrance-containing sections 3, but the number of fragrance-containing sections 3 is not limited to this and may be, for example, 100 or more.

[0024] <Air blower 4> As shown in Fig. 5, the air blower 4 is configured to blow air toward the mixing space S. Specifically, the air blower 4 is configured to blow air into the mixing space S from below. This configuration can enhance the fragrance diffusion effect. The air blower 4 has an air passage 41, a fan 42, and blades 43.

[0025] The air passage 41 is formed by a cylindrical straight pipe. The air passage 41 has an exhaust port 41A for exhausting air and an inlet port 41B for introducing air into the air passage 41. The exhaust port 41A is located above the inlet port 41B. The diameter of the air passage 41 increases toward the exhaust port 41A in the air flow direction. The diameter of the exhaust port 41A is larger than the diameters of other parts of the air passage 41. As shown in FIG. 6 , the diameter of the exhaust port 41A is smaller than the diameter of the imaginary circle VC.

[0026] 5 is configured to send air toward the mixing space S. The fan 42 is disposed inside the air passage 41. The fan 42 draws air from an inlet 41B of the air passage 41 and sends the air toward an outlet 41A of the air passage 41. For example, a motor fan, a piezo fan using a piezoelectric element, or the like can be used as the fan 42.

[0027] The air blower 4 is configured to send air toward the center P of the imaginary circle VC using the air passage 41 and the fan 42. This prevents the fragrance released from the fragrance storage unit 3 from entering and adhering to the air blower 4 (inside the air passage 41).

[0028] The plurality of blades 43 are disposed between the fan 42 and the mixing space S, and are disposed so as to impart rotation to the air discharged by the fan 42. According to this embodiment, a vortex is generated in the air discharged from the fan 42, thereby enhancing the mixing effect of the fragrance.

[0029] The plurality of blades 43 are arranged downstream (below) the outlet 41A in the air passage 41. Specifically, the plurality of blades 43 are arranged in a region inside the air passage 41 that is closer to the outlet 41A than the fan 42.

[0030] Fig. 7 is a part of a schematic cross-sectional view taken along line V-V in Fig. 6. Fig. 8 is a partial enlarged view of the blades in the cross-sectional view of Fig. 5. As shown in Fig. 7, the plurality of blades 43 each protrude radially inward from the inner circumferential surface of the air passage 41. The plurality of blades 43 all have the same shape and are arranged at equal intervals along the circumferential direction of the air passage 41.

[0031] The blades 43 have a shape that allows the air blown from below to collide with the blades and cause the air to flow in the circumferential direction of the airflow passage 41. Specifically, the blades 43 have a first edge 43A and a second edge 43B. The first edge 43A extends from the inner circumferential surface of the airflow passage 41 toward the center of the airflow passage 41. As shown in FIG. 8 , the first edge 43A forms the upper end of the blade 43. As shown in FIG. 7 , the second edge 43B extends counterclockwise from the end of the first edge 43A while curving concavely toward the radially outward side of the airflow passage 41 in a plan view (viewed from above). Furthermore, as shown in FIG. 8 , the second edge 43B extends downward from the end of the first edge 43A while curving convexly toward the radially inward side of the airflow passage 41.

[0032] When the air discharged by the fan 42 collides with the blades 43, a clockwise flow is generated in the air in a plan view. As a result, the air is supplied to the mixing space S while rotating clockwise. The mist-like fragrances released from the multiple fragrance storage units 3 are mixed and diffused by the rotating air. Note that the rotation direction of the air by the blades 43 may be counterclockwise in a plan view.

[0033] <Control unit 10> The control unit 10 shown in Figure 2 is configured to start the diffuser 1, accept input of operating conditions, etc., and control the amount of fragrance released from the fragrance storage unit 3 (i.e., the mixing ratio of multiple fragrances).

[0034] 9 is a block diagram showing the hardware configuration of the control unit 10. The control unit 10 includes a processor 101, a storage unit 102, a communication unit 103, an input unit 104, an output unit 105, and a communication bus 106. The processor 101, the storage unit 102, the communication unit 103, the input unit 104, and the output unit 105 are electrically connected within the control unit 10 via the communication bus 106.

[0035] The processor 101 processes and controls the overall operations related to the control unit 10. The processor 101 is, for example, a central processing unit (CPU). The processor 101 realizes the functions executed by the control unit 10 by reading out a predetermined program stored in the storage unit 102. In other words, information processing by software stored in the storage unit 102 is specifically realized by the processor 101, which is an example of hardware, and can be executed as each functional unit included in the processor 101. Note that the processor 101 is not limited to being single, and the control unit 10 may have multiple processors 101 for each function. Furthermore, the control unit 10 may have a configuration that combines these.

[0036] The memory unit 102 stores various pieces of information defined above. This can be implemented, for example, as a storage device such as a solid state drive (SSD) that stores programs and the like executed by the processor 101, or as a memory such as a random access memory (RAM) that stores temporarily required information (arguments, arrays, etc.) related to program calculations. The memory unit 102 stores various programs, variables, etc. executed by the processor 101.

[0037] The communication unit 103 is preferably a wired communication means such as USB, IEEE 1394, Thunderbolt (registered trademark), or wired LAN network communication, but may also include wireless LAN network communication, mobile communication such as LTE / 5G, BLUETOOTH (registered trademark) communication, etc. as needed. In other words, it is more preferable to implement it as a collection of multiple communication means. In other words, the control unit 10 may communicate various information from the outside via the communication unit 103 and the network.

[0038] The input unit 104 accepts operation inputs made by the user. The operation inputs are transferred as command signals to the processor 101 via the communication bus 106. The processor 101 can execute predetermined control or calculations based on the transferred command signals as necessary. The input unit 104 may be included in the housing of the control unit 10 or may be externally attached. For example, the input unit 104 may be implemented as a touch panel integrated with the output unit 105. When the input unit 104 is implemented as a touch panel, the user can input tap operations, swipe operations, etc. to the input unit 104.

[0039] The output unit 105 displays a screen of a graphical user interface (GUI) that can be operated by a user. The output unit 105 may be included in the housing of the control unit 10 or may be externally attached. Specifically, the output unit 105 may be implemented as a display device such as a CRT display, a liquid crystal display, an organic EL display, or a plasma display.

[0040] The control unit 10 may start, set, etc. the diffuser 1 based on input from the input unit 104, or may start, set, etc. the diffuser 1 based on input from an information processing terminal, remote controller, etc. owned by the user.

[0041] The control unit 10 (processor 101) executes an acquisition step of acquiring adjustment information specifying the mixing ratio of the fragrances contained in each of the multiple fragrance storage units 3, and an adjustment step of adjusting the amount of fragrance released from each of the multiple fragrance storage units 3 based on the adjustment information.

[0042] In the acquisition step, the adjustment information (mixing ratio) may be acquired by input from the user, or the adjustment information may be acquired from a server. The input from the user may be, for example, a direct input to the control unit 10, or the adjustment information may be input to an information processing terminal owned by the user and received from the information processing terminal.

[0043] The adjustment information acquired from the server may also be generated by an adjustment information creation model, which is an artificial intelligence. The adjustment information creation model is a learning model that is trained to receive impression information such as text, images, and audio as input and output adjustment information for generating a scent corresponding to the impression information. The adjustment information creation model is constructed, for example, by machine learning using teacher data that associates impression information with a corresponding blend ratio (recipe) of fragrances. For example, the server inputs impression information received from a user's information processing terminal into the adjustment information creation model, causes the adjustment information creation model to output adjustment information, and transmits the adjustment information to the control unit 10.

[0044] In the adjustment step, a predetermined amount of fragrance is sprayed from at least one fragrance-accommodating unit 3 (specifically, the fragrance-accommodating unit 3 that accommodates the fragrance specified in the adjustment information) based on the acquired adjustment information. The fragrance may be sprayed from the fragrance-accommodating unit 3 continuously or intermittently within a range that allows the desired scent to be produced.

[0045] FIG. 10 is a graph showing an example of adjusting the amount of fragrance released by the control unit 10. FIG. 10 shows the magnitude of the voltage applied to each fragrance-storage unit 3 in a time series when three types of fragrance, fragrance A, fragrance B, and fragrance C, are mixed in a mixing ratio of 8:5:2. The fragrance-storage unit 3 releases fragrance in an amount proportional to the applied voltage. The dashed line for each fragrance in FIG. 10 indicates the maximum voltage value in the fragrance-storage unit 3 (i.e., the voltage value when the maximum amount of fragrance is released), and the solid line indicates the magnitude of the applied voltage. The horizontal axis of FIG. 10 represents time T. In the example of FIG. 10, a voltage of 80% of the maximum value is continuously applied to the fragrance-storage unit 3 of fragrance A, a voltage of 50% of the maximum value is continuously applied to the fragrance-storage unit 3 of fragrance B, and a voltage of 20% of the maximum value is continuously applied to the fragrance-storage unit 3 of fragrance C. As a result, the diffuser 1 generates an odor in which fragrance A, fragrance B, and fragrance C are mixed in a mixing ratio of 8:5:2.

[0046] In this way, by changing the voltage for each fragrance storage unit 3 and applying the voltage continuously (continuing spraying by the fragrance storage unit 3), the generation of operating noise caused by switching between spraying and not spraying can be suppressed.

[0047] FIG. 11 is a graph showing another example of the adjustment of the amount of fragrance released by the control unit 10. Similar to FIG. 10 , FIG. 11 shows the magnitude of the voltage applied to each fragrance-accommodating unit 3 over time when three types of fragrance, fragrance A, fragrance B, and fragrance C, are mixed in a mixing ratio of 8:5:2. In the example of FIG. 11 , the same voltage is applied to each fragrance-accommodating unit 3, but the voltage application time is set to a ratio of 8:5:2. Specifically, one cycle is achieved by simultaneously applying voltage to the three fragrance-accommodating units 3, and then stopping the application of voltage to the corresponding fragrance-accommodating units 3 in the order of fragrance C, fragrance B, and fragrance A after a predetermined time (set release time) has elapsed. This cycle is repeated. As a result, an odor of fragrance A, fragrance B, and fragrance C mixed in a mixing ratio of 8:5:2 is generated in the diffuser 1. The period of one cycle (the cycle period of voltage application to the three fragrance-containing portions 3) is, for example, in the range of 100 ms to 1 s.

[0048] In this way, by changing the voltage application time for each fragrance storage unit 3 without changing the voltage, a voltage adjustment mechanism is not required. Therefore, it is possible to generate a desired odor using, for example, PWM control.

[0049] Fig. 12 is a graph showing yet another example of the adjustment of the amount of aromatic released by the control unit 10. The control in Fig. 12 is the same as the control in Fig. 11 except that an interval period PP is provided during which no voltage is applied to any of the aromatic storage units 3. The interval period PP is longer than the cycle period of voltage application, for example, on the order of several minutes to several tens of minutes. Furthermore, the period during which the cycle is repeated up to the interval period PP (spray operation period OP) is on the order of several seconds, for example.

[0050] By providing an interval period in this way, it is possible to eliminate the need for a voltage adjustment mechanism and to suppress the generation of operating noise caused by switching between spraying and not spraying to within a certain period of time.

[0051] 4. Operation The operation of this embodiment can be summarized as follows: Since the fragrances are mixed in the open space outside the diffuser 1, adhesion of the fragrance to the interior of the diffuser 1 is suppressed. This prevents contamination of the fragrance used previously with the fragrance to be used again.

[0052] Although the embodiment of the present invention has been described above, the present invention is not limited to this and can be modified as appropriate within the scope of the technical idea of ​​the invention.

[0053] 5. Others The diffuser 1 may include a cover that covers at least a portion of the plurality of fragrance-containing units 3 (for example, a portion of the fragrance-containing unit 3 other than the release port 32A).

[0054] The diffuser 1 may include a heater configured to heat at least one of the fragrance-containing unit 3 itself, the fragrance released from the fragrance-containing unit 3, the airflow path 41 itself, and the air blown by the air blower 4. This improves the diffusion of the fragrance.

[0055] The diffuser 1 may include a water reservoir that stores water and a humidifier that atomizes the water in the reservoir. The water reservoir is disposed, for example, in the lower part of the housing 2. The water vapor generated by the humidifier is sprayed outside the diffuser 1 by the air blower 4 either alone or mixed with a fragrance.

[0056] The diffuser 1 may be self-propelled. For example, the diffuser 1 may include rolling elements such as wheels or rollers and a motor for driving the rolling elements. The diffuser 1 may also include a handle for easy portability.

[0057] The diffuser 1 may have an automatic cleaning function for the blower unit 4 (at least one of the air passage 41, the fan 42, and the blades 43). For example, the diffuser 1 may have a brush that cleans the inside of the blower unit 4 and a mechanism that drives the brush.

[0058] The housing 2 does not necessarily have to be cylindrical as long as it can hold the aromatic material storage section 3 and the air blowing section 4 .

[0059] As long as the fragrance-containing units 3 can each release a fragrance into the mixing space, the fragrance release ports 32A of the fragrance-containing units 3 do not necessarily have to be arranged on a single imaginary circle. For example, the fragrance-containing units 3 may be arranged in a horizontal row. Furthermore, the fragrance-containing units 3 do not necessarily have to be attached to the housing 2.

[0060] The blower 4 does not necessarily have to have the blades 43. In other words, the blower 4 does not necessarily have to be configured to send air having vortices to the mixing space.

[0061] The blower 4 may be configured to send air to multiple mixing spaces. For example, air may be sent from one blower 4 to a first mixing space where a fragrance is released from multiple fragrance-containing units 3 serving as multiple first release mechanisms, and to a second mixing space where a fragrance is released from multiple fragrance-containing units 3 serving as second release mechanisms separate from the first release units.

[0062] Furthermore, the blower unit 4 does not necessarily have to be configured to blow air into the mixing space from below. For example, the blower unit 4 may be configured to blow air into the mixing space from above, or may be configured to blow air into the mixing space from the side. For example, if the blower unit 4 blows air into the mixing space from the side, the diffuser 1 can be used while hanging it on a wall.

[0063] It may be provided in the following manner.

[0064] (1) A diffuser comprising a plurality of fragrance storage sections configured to store fragrances and release the fragrances into a mixing space, which is an open space in which the fragrances can be diffused, and a blower section configured to send air toward the mixing space.

[0065] According to this embodiment, the fragrances are mixed in an open space, which prevents the fragrances from adhering to the interior of the diffuser, thereby preventing contamination between the fragrances used previously and the fragrances to be used again.

[0066] (2) The diffuser according to (1) above, wherein the blower section sends air to the mixing space from below.

[0067] According to this embodiment, the fragrance diffusion effect can be improved.

[0068] (3) A diffuser as described in (1) or (2) above, wherein the plurality of fragrance storage sections include three or more fragrance storage sections whose fragrance outlets are arranged on a single imaginary circle, and the blower section sends air toward the center of the imaginary circle.

[0069] According to this aspect, it is possible to prevent uneven mixing of the fragrances released from the plurality of fragrance storage sections.

[0070] (4) A diffuser according to any one of (1) to (3) above, wherein the blowing section has a fan configured to blow air toward the mixing space, and a plurality of blades arranged between the fan and the mixing space and arranged to impart rotation to the air discharged by the fan.

[0071] According to this aspect, a vortex is generated in the air discharged from the fan, which can enhance the mixing effect of the fragrance.

[0072] (5) A diffuser described in any one of (1) to (4) above, further comprising a cylindrical housing in which the blowing unit is arranged, and a plurality of pedestals are provided on the outer surface of the housing, to which the plurality of fragrance storage units are attached one by one.

[0073] According to this embodiment, the diffuser can be made compact and the fragrance-containing portion can be easily replaced.

[0074] Finally, while various embodiments of the present disclosure have been described, they are presented as examples and are not intended to limit the scope of the invention. The novel embodiments may be embodied in various other forms, and various omissions, substitutions, and modifications may be made without departing from the spirit of the invention. Such embodiments and modifications are intended to be included within the scope and spirit of the invention, as well as within the scope of the inventions and their equivalents as defined in the claims.

[0075] 1: Diffuser, 2: Housing, 3: Fragrance storage section, 4: Air blower section, 10: Control section, 21: Main body, 22: Base, 31: Container, 32: Nozzle, 32A: Discharge port, 41: Air blower duct, 41A: Exhaust port, 41B: Inlet port, 42: Fan, 43: Blades, 43A: First edge, 43B: Second edge, 101: Processor, 102: Memory section, 103: Communication section, 104: Input section, 105: Output section, 106: Communication bus, OP: Spray operation period, P: Center, PP: Interval period, S: Mixing space, VC: Virtual circle

Claims

1. A diffuser, comprising: a plurality of fragrance storage parts configured to store a fragrance and release the fragrance into a mixing space which is an open space where the fragrance can diffuse; and a blower part configured to send air toward the mixing space.

2. The diffuser according to claim 1, wherein the blower part sends air into the mixing space from below.

3. The diffuser according to claim 1 or 2, wherein the plurality of fragrance storage parts include three or more fragrance storage parts with the discharge ports of the fragrance arranged on a virtual circle, and the blower part sends air toward the center of the virtual circle.

4. The diffuser according to any one of claims 1 to 3, wherein the blower part includes: a fan configured to blow air toward the mixing space; and a plurality of blades arranged between the fan and the mixing space and configured to impart rotation to the air discharged by the fan.

5. The diffuser according to any one of claims 1 to 4, further comprising a cylindrical housing in which the blower part is arranged, and a plurality of pedestals for attaching the plurality of fragrance storage parts one by one are provided on the outer peripheral surface of the housing.

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