Aroma Diffuser

JP3250256UActive Publication Date: 2025-02-19GUANGDONG CAR HOUSE INDUSTRIAL DEVELOPMENT HOLDINGS CO LTD
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Patent Information

Application Number
JP2024004156U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2024-09-30
Filing Date
2024-12-12
Publication Date
2025-02-19
Estimated Expiration
2034-12-12

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Abstract

To provide an aroma diffuser having a good aroma diffusing effect, a good leakage prevention effect, a simple overall structure, and a good liquid guiding effect. [Solution] The aroma diffuser comprises a bottle (20), a decorative cap which is rotatably fitted onto the upper end of the bottle, and a liquid absorbing / aroma diffusing assembly provided within the decorative cap, with a number of aroma diffusing holes (31) formed on the decorative cap, a breakable sealant (21) for sealing the mouth of the bottle being provided, and a liquid absorbing stick (50) inside the breakable sealant being inserted into the mouth, and the liquid absorbing / aroma diffusing assembly comprises an aroma diffusing member (1) formed by hot pressing at least two sheets of liquid-absorbing volatile film, and a lead member (2) provided within the aroma diffusing member, with the lower end of the lead member extending from the aroma diffusing member and placed above the breakable sealant, and the upper end of the lead member extending from the aroma diffusing member and removably fixed to the top of the decorative cap.
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Description

[Technical field]

[0001] The present invention relates to the technical field of aroma diffusers for home or car use, and in particular to an aroma diffuser. [Background technology]

[0002] Aroma diffusers are products used to improve the smell of air in indoor and car environments, and as living standards improve, more and more people are accepting and using aroma diffuser products. To improve the air environment in personal cars and indoors, people usually place solid air fresheners, spray perfume, or place aromatic essential oils in the car or indoors, which spread the scent throughout the space, relieving the user's fatigue and creating a fun atmosphere in the space. Combined with soft music, the fresh, floral, sweet scent penetrates the nose and bones, creating a subtle fragrance and enhancing enjoyment.

[0003] However, conventional aroma diffuser products are mainly classified into several types, the first being a naturally volatile balm product, the second being an aroma diffuser that uses perfume to diffuse the scent, and the third being a blow-out type aroma diffuser that is used by clamping it to the air outlet. Most aroma diffuser products diffuse the scent after absorbing the perfume using an aroma-diffusing cotton pad and a liquid-absorbing stick, but the method of absorbing the perfume and diffusing the scent with an aroma-diffusing cotton pad is prone to problems such as leakage due to spillage of the liquid from the aroma-diffusing cotton pad and contamination of the inside of the case when the aroma diffuser falls over or the vehicle is vibrated, and when the aroma-diffusing cotton pad and the liquid-absorbing stick are of a separate structure, there is a problem that poor contact between the two is likely to occur due to processing or assembly errors, which affects the aroma diffusion. Summary of the Invention [Problem to be solved by the invention]

[0004] The purpose of the present invention is to overcome the technical deficiencies of the prior art by providing an aroma diffuser that has the characteristics of good aroma diffusion effect and good leakage prevention effect, has a simple overall structure, and has good liquid guide effect. [Means for solving the problem]

[0005] In order to solve the above technical problems, the present invention provides an aroma diffuser, comprising: a bottle for containing a liquid substrate; a decorative cap rotatably fitted on the upper end of the bottle; and a liquid absorbing and aroma diffusing assembly disposed within the decorative cap and positioned above the bottle, the decorative cap having a number of aroma diffusing holes formed therethrough; a breakable seal for sealing the mouth of the bottle; and a liquid absorbing stick disposed inside the breakable seal at the mouth of the bottle; the liquid absorbing and aroma diffusing assembly includes an aroma diffusing member formed by hot pressing at least two sheets of liquid absorbing volatile film; and a lead member provided within the aroma diffusing member, a lower end of the lead member extending from the aroma diffusing member and positioned above the breakable seal, an upper end of the lead member extending from the aroma diffusing member and removably fixed to the inner top of the decorative cap, at least one spiral groove extending spirally in the axial direction being recessed into the outer periphery of the upper end of the bottle, and a guide protrusion sliding within the spiral groove being protruded into the inner periphery of the decorative cap, so that the decorative cap can rotate along the spiral groove to one side of the bottle and move the liquid suction / aroma diffusing assembly downward to break the breakable seal.

[0006] In addition, the aroma diffusion member is formed by hot pressing two laminated volatile films, the lead member is provided at the center of the aroma diffusion member, the outer periphery of the two volatile films is fixed by hot pressing, and at least one hot press point is provided at a distance from the other at a position close to both sides of the lead member on the two volatile films along the extension direction of the lead member.

[0007] In addition, the aroma diffusion member is formed by stacking four volatile films in a cross shape and hot pressing, the lead member is located at the center of the cross of the aroma diffusion member, each of the volatile films is right-angled, the right-angled vertices of the four volatile films overlap at the center of the cross, and the right-angled sides of the four volatile films are stacked two at a time and fixed by hot pressing, the outer peripheries of two adjacently stacked volatile films are fixed by hot pressing, and at least one hot pressing point is provided at a distance along the extension direction of the lead member at a position close to both sides of the lead member of the two adjacently stacked volatile films.

[0008] Furthermore, four guide grooves arranged in a cross shape are formed on the inner wall of the decorative cap, and the outer ends of the fragrance diffusing members are slidably fitted into the guide grooves.

[0009] In addition, two restricting ribs are provided in the spiral groove so as to protrude with a gap therebetween, and a locking groove is recessed in the guide protrusion to engage with the restricting ribs.

[0010] In addition, the upper end of the bottle is provided with a fitting portion that shrinks inward and fits with the decorative cap, three spiral grooves arranged in a ring shape are provided on the outer periphery of the fitting portion, and guide protrusions that correspond one-to-one to the spiral grooves are provided on the inner periphery of the decorative cap.

[0011] A fixing post is protrudingly provided on the inner top of the decorative cap to fit onto the upper end of the lead member.

[0012] A fixing hole for inserting the lead member is recessed in the center of the fixing post, an annular groove is recessed in the inner wall of the fixing hole, and an annular body that engages with the annular groove is protruded on the outer periphery of the lead member.

[0013] The breakable seal is an aluminum foil fixed to the mouth of the bottle by a heat sealing method, and a gap is provided between the breakable seal and the top surface of the liquid absorbing stick.

[0014] The lower end of the lead member is a pointed cone, the volatile film is a dialysis membrane, and both the lead member and the absorbing stick are cotton swabs. Effect of the Invention

[0015] The present invention has the following advantageous effects:

[0016] In the present invention, at least two volatile films are first hot-pressed and fixed to form an aroma diffusing member, and a lead member is provided between the two volatile films during the hot-pressing process, and when used, the decorative cap moves to one side of the bottle along the spiral groove by a rotating method, and the lead member on the liquid absorbing and aroma diffusing assembly moves to one side of the bottle below to break the breakable seal, and then contacts the liquid absorbing stick, so that the perfume on the liquid absorbing stick is continuously guided upward to the lead member, and then guided to the aroma diffusing member and absorbed by the aroma diffusing member, and after the aroma diffusing member absorbs the perfume, it slowly evaporates and diffuses the aroma, and after the volatile film absorbs the liquid, it only wets the membrane paper, and the liquid does not flow out, and the mechanism of aroma diffusion by the volatile film does not cause the problem of perfume spilling, so the problem of leakage caused by perfume spilling and the problem of contamination of the case are avoided, and the characteristics of good aroma diffusing effect and good leakage prevention effect are obtained. The lead member and the volatile film are fixed by hot-pressing to form an integrated assembly structure, and the overall structure is simple and the effect of guiding the liquid is good.

[0017] Next, by utilizing the cooperation of the two regulating ribs on the spiral groove and the locking groove on the guide rib, one of the two regulating ribs is positioned higher and the other is positioned lower, and initially the locking groove on the guide rib engages with the upper regulating rib, keeping the liquid-absorbing and fragrance-diffusing assembly fixed to the decorative cap in a fixed position so as not to break the breakable seal when not in use, thereby preventing the assembly from rotating too much during product assembly and accidentally breaking the breakable seal. When in use, the decorative cap is rotated so that the locking groove on the guide rib rotates downward and then engages with the lower regulating rib, and the decorative cap is pushed down to move it downward and engage with the lower locking groove, so that the lead member moving downward remains in contact with the liquid-absorbing stick, thereby avoiding the problems of it coming off or loosening. By making the liquid-absorbing stick and the fragrance-diffusing cotton pad in a separate structure in the conventional structure, the problem of poor contact caused by processing or assembly errors and affecting fragrance diffusion is solved.

[0018] In addition, in the method of hot pressing and fixing the outer periphery of the volatile film, i.e., most of the area of ​​the volatile film is not hot pressed, firstly, the absorbed perfume can be tightly trapped within the hot pressed edge, thereby avoiding the problem of liquid spillage; secondly, the effect of directing the liquid inside the volatile film and the effect of diffusing fragrance can be avoided; at least one hot pressed point is arranged at a distance from the lead member of the two volatile films along the extension direction of the lead member at a position close to the lead member, so that the lead member can be well sandwiched and fixed between the two volatile films through the hot pressed point, and the non-hot pressed area other than the hot pressed point can better direct the perfume on the lead member into the volatile film.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0020] The drawings described herein provide a further understanding of the invention, are incorporated in and are a part of this application, and are not to be construed as unduly limiting the invention. [Brief description of the drawings]

[0021] [Figure 1] 1 is a schematic diagram of an aroma diffuser according to an embodiment. [Diagram 2] 1 is a cross-sectional view of an aroma diffuser according to an embodiment. [Diagram 3] FIG. 3 is an enlarged view of a portion A in FIG. 2. [Figure 4] FIG. 2 is a schematic diagram of a bottle according to an embodiment. [Diagram 5] FIG. 2 is a front view of the bottle according to the embodiment. [Figure 6] 1 is a schematic diagram of a decorative cap in an embodiment. [Figure 7] FIG. 2 is a cross-sectional view of a decorative cap in an embodiment. [Figure 8] 1 is a schematic diagram of a liquid absorption and aroma diffusion assembly in a first embodiment. [Figure 9] FIG. 1 is a front view of a liquid absorption and aroma diffusion assembly according to a first embodiment. [Figure 10] FIG. 11 is a schematic diagram of a liquid absorption and aroma diffusion assembly in a second embodiment. [Figure 11] FIG. 11 is a front view of the liquid absorption and aroma diffusion assembly according to the second embodiment. [Figure 12] FIG. 11 is a bottom view of the liquid absorption and aroma diffusion assembly according to the second embodiment. [Figure 13] FIG. 4 is a cross-sectional view of an aroma diffuser according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] In order to make the technical contents of the present invention more fully understood, the present invention will be further introduced and described below with reference to the drawings and specific embodiments. In this specification, the terms "first", "second" and the like are only intended to distinguish different elements, and do not imply order, and do not limit that "first" and "second" are different types.

[0023] The technical means in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings in the embodiments of the present invention, but it goes without saying that the described embodiments are only some of the embodiments of the present invention and do not include all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without any creative activity are all within the scope of protection of the present invention.

[0024] (First embodiment) As shown in Figures 1 to 9, the aroma diffuser of this embodiment comprises a bottle 20 for containing a liquid substrate (e.g., aroma, perfume), a decorative cap 30 fitted onto the upper end of the bottle by a rotating method, and a liquid absorption and aroma diffusion assembly 10 provided within the decorative cap 30 and positioned above the bottle 20, and it is preferable that the decorative cap 30 and the bottle 20 have a circular structure with the same outer diameter. A number of aroma diffusion holes 31 are provided on the decorative cap 30 to facilitate the flow of air inside and outside and the diffusion of aroma. A breakable seal 21 for sealing is provided at the mouth of the bottle 20. A liquid absorbing stick 50 is inserted into the mouth of the bottle 20 and located inside the breakable seal 21. The lower end of the liquid absorbing stick 50 extends to the bottom of the bottle 20 and is used to suck up the perfume in the bottle. The liquid absorbing and aroma diffusing assembly 10 includes an aroma diffusing member 1 formed by hot pressing at least two sheets of liquid absorbing volatile film, and a reed member 2 provided in the aroma diffusing member 1. The aroma diffusing member 1 is generally flat, the lower end of the reed member 2 extends from the aroma diffusing member 1 and is placed above the breakable seal 21, and the upper end of the reed member 2 extends from the aroma diffusing member 1. The decorative cap 30 is removably fixed to the inner top of the bottle 20, i.e., after being fixed to the decorative cap 30, the liquid absorbing / aroma diffusing assembly 10 can move up and down together with the decorative cap 30, and at least one spiral groove 22 extending spirally in the axial direction is recessed into the outer periphery of the upper end of the bottle 20, and a guide protrusion 32 sliding within the spiral groove 22 is protruded into the inner periphery of the decorative cap 30, so that the decorative cap 30 can move toward or away from the bottle 20 along the spiral groove 22 as it rotates relative to the bottle 20, and as the decorative cap rotates along the spiral groove to one side of the bottle, the lead member 2 in the liquid absorbing / aroma diffusing assembly 10 moves downward to break the breakable seal 21, thereby bringing the lead member 2 into contact with the liquid absorbing stick 50 at the mouth.

[0025] In the above structure, at least two volatile films are first hot-pressed and fixed to form an aroma diffusing member, and a lead member is provided between the two volatile films during the hot-pressing process, and when used, the decorative cap moves to one side of the bottle along the spiral groove by a rotating method, and the lead member on the liquid absorbing and aroma diffusing assembly moves to one side of the bottle below to break the breakable seal, and then contacts the liquid absorbing stick, so that the perfume on the liquid absorbing stick is continuously guided upward to the lead member, and then guided to the aroma diffusing member and absorbed by the aroma diffusing member, and after the aroma diffusing member absorbs the perfume, it slowly evaporates and diffuses the aroma, and after the volatile film absorbs the liquid, it only wets the membrane paper, and the liquid does not flow out, and the mechanism of aroma diffusion by the volatile film does not cause the problem of perfume spilling, so the problem of leakage due to the perfume spilling and the problem of contamination of the case are avoided, and the characteristics of good aroma diffusing effect and good leakage prevention effect are obtained. The lead member and the volatile film are fixed by hot-pressing to form an integrated assembly structure, and the overall structure is simple and the effect of guiding the liquid is good.

[0026] Preferably, the spiral groove 22 is provided with vertical regulating ribs 23 protruding at intervals, the regulating ribs 23 being located at the middle and the bottom end of the spiral groove 22, respectively, i.e., the two regulating ribs 23 are at different heights, and the guide protrusion 32 is recessed with an engagement groove 37 which engages with the regulating ribs 23. In this structure, when not in use, the locking groove 37 on the guide protrusion 32 engages with the upper regulating rib 23, creating a gap between the decorative cap 30 and the bottle 20 for the decorative cap 30 to move downward. The height of this gap is the same as the vertical height between the two upper and lower regulating ribs 23, allowing the liquid absorbing / aroma diffusing assembly fixed to the decorative cap to be kept in a fixed position where it does not break the breakable seal when not in use, preventing the problem of accidentally breaking the breakable seal due to excessive rotation during product assembly. When in use, the decorative cap is rotated so that the locking groove on the guide protrusion rotates downward and then engages with the lower regulating rib, the decorative cap is pushed down to move downward and engage with the lower locking groove, and the lead member moving downward remains in contact with the liquid absorbing stick, avoiding the problem of it coming off or loosening. By making the liquid absorbing stick and the aroma diffusing cotton pad a separate structure in the conventional structure, the problem of poor contact caused by processing or assembly errors and affecting aroma diffusion is solved.

[0027] Preferably, the upper end of the bottle 20 is provided with a fitting portion 24 that shrinks inward and fits into the decorative cap 30, and three spiral grooves 22 arranged in a ring shape are provided on the outer periphery of the fitting portion 24 using a protruding rib installation method, and guide protrusions 32 that correspond one-to-one to the spiral grooves 22 are provided on the inner periphery of the decorative cap 30.

[0028] Preferably, the lead member 2 is provided in the center of the aroma diffusing member 1; of course, the lead member can also be provided at one end of the aroma diffusing member; however, by providing the lead member 2 in the center of the aroma diffusing member 1 when guiding liquid, the liquid can be guided to both ends of the aroma diffusing member 1 simultaneously, and the liquid can be guided more quickly throughout the entire aroma diffusing member, providing a better liquid guiding effect and aroma diffusing effect, compared to when the lead member is provided at one end of the aroma diffusing member.

[0029] In one embodiment, as shown in Figures 8-9, the outer circumference of two volatile films is fixed by hot pressing to form a hot-pressed edge 11, and the area within the hot-pressed edge 11 is not hot-pressed, so that firstly, the absorbed perfume can be tightly trapped within the hot-pressed edge, thereby avoiding the problem of liquid spillage; secondly, the effect of directing the liquid inside the volatile film and the effect of diffusing fragrance can be avoided; and one or two hot-pressed points 12 are spaced apart at positions close to both sides of the reed member 2 of the two volatile films, arranged along the extending direction of the reed member, that is, the area other than the hot-pressed points 12 at the contact position between the volatile film and the reed member is not hot-pressed, and the reed member between the two volatile films can be well sandwiched and fixed through the hot-pressed points, and the non-hot-pressed area other than the hot-pressed points can better direct the perfume on the reed member into the volatile film.

[0030] In one embodiment, as shown in Figures 1 to 7, four guide grooves 33 distributed in a cross shape are erected on the inner wall of the decorative cap 30, the four guide grooves 33 are respectively provided at the four corners of the decorative cap, and the left and right outer ends of the fragrance diffusion member 1 are respectively provided in any two guide grooves 32 arranged diagonally, thereby realizing the assembly and positioning between the decorative cap and the liquid absorption and aroma diffusion assembly, and avoiding problems such as falling off and bending of the liquid absorption and aroma diffusion assembly.

[0031] In one embodiment, as shown in Figures 1 to 7, a fixing post 34 that fits with the upper end of the lead member 2 is protrudingly provided on the inner top of the decorative cap 30, a fixing hole 35 for inserting the lead member 2 is recessed in the center of the fixing post 34, an annular groove 36 is recessed into the inner wall of the fixing hole 35, and an annular body 25 that engages with the annular groove 36 is protrudingly provided on the outer periphery of the lead member 2, thereby engaging and fixing the lead member 2 and the decorative cap 30.

[0032] In one embodiment, as shown in FIG. 2, a gap 26 is provided between the breakable seal 21 and the top surface of the absorbent stick 50, allowing the breakable seal 21 to elastically deform inwards and burst after being compressed.

[0033] In one embodiment, the lower end of the lead member 2 is a pointed cone shape, which makes it easy to break through the breakable seal 21 and insert it into the top of the absorbing stick by pressing force, ensuring good contact with the absorbing stick and good liquid conducting efficiency.

[0034] In one embodiment, as shown in FIG. 6, the breakable seal 21 is an aluminum foil fixed to the mouth of the bottle 20 by a heat sealing method, which is simple, reliable and convenient for heat sealing processing; of course, a film material that can be sealed and broken, such as a plastic film, can also be selected.

[0035] Alternatively, the volatile film is preferably a porous membrane, i.e., a dialysis membrane, such as Teslin, Daramic, etc., and the thickness of the volatile film is preferably 0.2-0.5 mm.

[0036] Alternatively, the lead member is a material having a liquid conducting effect, such as a cotton swab or graphite rod, and the liquid absorbing stick is a cotton swab.

[0037] In other embodiments, the lead members are preferably cylindrical in structure, but may also be rectangular or other polygonal in structure.

[0038] Second embodiment As shown in Figures 1, 3 to 7 and 10 to 13, the structure of the aroma diffuser according to this embodiment is basically the same as that shown in the first embodiment, with the difference being that the liquid absorbing and aroma diffusing assembly 10 specifically comprises an aroma diffusing member 1 which is made by hot pressing four volatile films which are overlapped in a cross shape and can absorb liquid, and a lead member 2 provided in the aroma diffusing member 1, and the four ends of the aroma diffusing member 1 are respectively provided in four guide grooves 33 inside the decorative cap 30, thereby realizing the assembly and positioning between the decorative cap and the liquid absorbing and aroma diffusing assembly, and preventing the liquid absorbing and aroma diffusing assembly from falling off and To avoid problems such as bending, the lead member 2 is provided at the center of the cross of the fragrance diffusing member 1, and can simultaneously guide liquid to the four ends of the fragrance diffusing member 1, thereby more quickly guiding liquid to the entire fragrance diffusing member, and providing a better liquid directing effect and fragrance diffusing effect. The lower end of the lead member 2 extends from the fragrance diffusing member 1 and is placed above the breakable sealant 21, and the upper end of the lead member 2 extends from the fragrance diffusing member 1 and is removably fixed to the inner top of the decorative cap 30, i.e., the liquid suction and aroma diffusing assembly 10 can rotate and move up and down together with the decorative cap 30 after being fixed to the decorative cap 30.

[0039] In one embodiment, as shown in Figs. 10 to 12, each volatile film has a right-angled shape, and the right-angled vertices of the four volatile films overlap at the center of the cross, and the right-angled sides of the four volatile films are stacked two by two and fixed by hot pressing to form a cross-shaped fragrance diffusing member 1, and the lead member 2 is located between the right-angled vertices of the four volatile films, and the outer peripheries of two adjacent stacked volatile films are fixed by hot pressing to form a hot-pressed edge 11, and the area within the hot-pressed edge 11 is not hot-pressed. Firstly, the absorbed perfume can be tightly trapped within the hot-pressed edge, thereby eliminating the problem of liquid spillage. secondly, the effect of directing the liquid inside the volatile film and the effect of diffusing the fragrance can be avoided; and one or two hot-pressing points 12 are spaced apart at positions close to both sides of the lead member 2 of two adjacent stacked volatile films, arranged along the extending direction of the lead member, that is, the area other than the hot-pressing points 12 at the contact position between the volatile film and the lead member is not hot-pressed, and the lead member can be well sandwiched and fixed between the four volatile films through the hot-pressing points, and the non-hot-pressed areas other than the hot-pressing points can better direct the perfume on the lead member into the volatile film.

[0040] The above has introduced in detail the technical means provided by the embodiments of the present invention, and the present specification has used specific examples to explain the principles and implementation methods of the embodiments of the present invention. The above description of the embodiments is only suitable for helping people to understand the principles of the embodiments of the present invention, and at the same time, those skilled in the art can modify the specific implementation methods and application scope based on the embodiments of the present invention. In short, the contents of this specification should not be construed as limitations on the present invention.

Claims

1. An aroma diffuser comprising: a bottle for containing a liquid substrate; a decorative cap fitted onto an upper end of the bottle; and a liquid absorbing and aroma diffusing assembly provided within the decorative cap and positioned above the bottle, the decorative cap having a number of aroma diffusing holes formed therethrough; a breakable seal for sealing the mouth of the bottle; and a liquid absorbing stick positioned inside the breakable seal inserted into the mouth of the bottle; the liquid absorbing and aroma diffusing assembly comprising an aroma diffusing member formed by hot pressing at least two sheets of liquid absorbing volatile film, and a reed member provided within the aroma diffusing member; an aroma diffuser comprising: a lower end of the reed member extending from the aroma diffusing member and positioned above the breakable seal; an upper end of the reed member extending from the aroma diffusing member and removably fixed to the inner top of the decorative cap; at least one spiral groove extending in an axial direction is recessed into the outer periphery of the upper end of the bottle; and a guide protrusion sliding within the spiral groove is protruded into the inner periphery of the decorative cap, so that the decorative cap can rotate toward one side of the bottle along the spiral groove to move the liquid suction / aroma diffusing assembly downward to break the breakable seal.

2. The aroma diffuser of claim 1, characterized in that the aroma diffusion member is formed by hot pressing two laminated sheets of the volatile film, the lead member is provided at the center of the aroma diffusion member, the outer peripheries of the two volatile films are fixed by hot pressing, and at least one hot press point is provided at an interval along the extension direction of the lead member at a position close to both sides of the lead member on the two volatile films.

3. 3. The aroma diffuser according to claim 2, wherein the aroma diffusion member is formed by hot-pressing four of the volatile films stacked in a cross shape, the lead member is provided at the center of the cross of the aroma diffusion member, each of the volatile films has a right-angled shape, the apexes of the right angles of the four volatile films overlap at the center of the cross, and two right-angled sides of the four volatile films are stacked and fixed by hot pressing, the outer peripheries of two adjacently stacked volatile films are fixed by hot pressing, and at least one of the hot-press points is provided at intervals at positions close to both sides of the lead member of the two adjacently stacked volatile films along the extension direction of the lead member.

4. The aroma diffuser according to any one of claims 1 to 3, characterized in that four guide grooves arranged in a cross shape are provided on the inner wall of the decorative cap, and the outer end of the aroma diffusing member is slidably fitted into the guide grooves.

5. 5. The aroma diffuser according to claim 4, wherein two restriction ribs are provided in the spiral groove and protrude with a gap therebetween, and the guide protrusion is provided with a locking groove that engages with the restriction ribs.

6. The aroma diffuser of claim 5, characterized in that the upper end of the bottle is provided with a fitting portion that shrinks inward and fits with the decorative cap, three spiral grooves arranged in a ring shape are provided on the outer periphery of the fitting portion, and guide protrusions that correspond one-to-one to the spiral grooves are provided on the inner periphery of the decorative cap.

7. 7. The aroma diffuser according to claim 6, wherein a fixing post is provided on an inner top of the decorative cap so as to protrude therefrom and engage with an upper end of the lead member.

8. 8. The aroma diffuser according to claim 7, wherein a fixing hole for inserting the reed member is recessed in the center of the fixing post, an annular groove is recessed in the inner wall of the fixing hole, and an annular body that engages with the annular groove is protruded on the outer periphery of the reed member.

9. 9. The aroma diffuser according to claim 8, wherein the breakable seal is an aluminum foil fixed to the mouth of the bottle by a heat sealing method, and a gap is provided between the breakable seal and the top surface of the liquid-absorbing stick.

10. 2. The aroma diffuser according to claim 1, wherein the lower end of the reed member is a pointed cone, the volatile film is a dialysis membrane, and both the reed member and the liquid-absorbing stick are cotton swabs.