Diffuser

The diffuser's removable cover with absorbent materials addresses leakage and distribution issues by enhancing fragrance release and distribution.

DE202025002629U1Active Publication Date: 2025-12-11ARPACK
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Patent Information

Application Number
DE202025002629
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2025-12-11
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Existing diffusers with aroma reservoirs for liquid fragrances face issues with leakage and limited fragrance release area, leading to ineffective distribution.

Method used

A diffuser design featuring a removable cover with a larger surface area than the outlet opening, incorporating porous materials like expanded clay or textile structures to absorb and release fragrance, reducing leakage and enhancing distribution.

Benefits of technology

The design effectively prevents leakage and improves fragrance release by using absorbent materials, allowing for controlled and enhanced fragrance dispersion.

✦ Generated by Eureka AI based on patent content.

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Abstract

Diffuser (1) for fluid fragrances (4), with at least one reservoir (2) arranged in the diffuser (1) and the reservoir (2) serving to hold at least one fluid fragrance (4), wherein the at least one reservoir (2) has a removable cover (3) at its outlet opening (5) which covers the outlet opening (5) of the reservoir (2) and which provides an increase in the release area of ​​the fluid fragrance (4) by having at least one means that can store the fluid fragrance (4) contained in the reservoir (2) and wherein the surface area of ​​the at least one means is larger than the cross-sectional area of ​​the outlet opening (5) through which the fluid fragrance (4) can usually escape into the environment of the diffuser (1).
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Description

[0001] The invention relates to a diffuser with at least one fan and an aroma reservoir located within the diffuser. Diffusers that distribute essential oils or fragrances throughout a room by combining vaporization with an integrated fan are already known. Unlike classic aroma diffusers, which mostly rely on ultrasonic or heat vaporization, the fan ensures a particularly even and rapid distribution of the fragrance. The fragrance, usually in the form of oil, is placed in or applied to the device. A fan ensures that the fragrance is distributed directly and continuously throughout the room. Often, different power or intensity levels are available to individually adjust the fragrance strength.

[0002] The disadvantage of known devices with an aroma reservoir for liquid fragrances is that the substance containing fragrances, also called a liquid fragrance (for example, a fragrance oil), can leak out if the diffuser tips over. Furthermore, the surface area available for releasing the fragrance into the environment is limited by the shape of the reservoir and typically comprises only the cross-sectional area of ​​an outlet for the liquid fragrance. This is often insufficient to ensure effective release of the liquid fragrance.

[0003] The invention therefore aims to further develop and optimize a diffuser for fluid fragrances, in particular to reduce the risk of the fluid fragrance leaking out when the diffuser with its reservoir – including a fluid carrier substance for the fragrance – tips over.

[0004] This problem is solved according to the invention by a diffuser having the features of main claim 1, wherein the dependent claims include further embodiment variants of these solutions according to the invention.

[0005] A diffuser for fluid fragrances then has the following features. It has a conventional design according to the prior art and includes a reservoir arranged within the diffuser, the reservoir serving to hold at least one fluid fragrance. According to the invention, the at least one reservoir has a removable cover at its outlet opening, which conceals the outlet opening of the reservoir and, according to the invention, increases the dispensing area of ​​the fluid fragrance.

[0006] This is achieved by the covering device itself comprising at least one means capable of storing the fluid fragrance contained in the reservoir, and wherein the surface area of ​​the at least one means is larger than the cross-sectional area of ​​the outlet opening through which the fluid fragrance typically escapes into the diffuser's surroundings. The term "surface area" refers to the entire internal and external surface of the at least one means, including porous structures such as expanded clay or sponge-like materials. Preferably, however, means possessing a larger external surface area, such as liquid-absorbing granules, are used, as this significantly increases the release area.

[0007] It is also within the scope of the invention that the at least one agent already contains the fluid fragrance and / or another fluid fragrance and can thus act alone or in combination with the fluid fragrance contained in the reservoir. This allows for a combination of fragrances. A combination of different fragrances can thus create a new fragrance individually, whereby the fluid fragrance, referred to here as the first fluid fragrance, can form a base note and the other fluid fragrance can form the top and / or heart note. Reverse combinations are also possible. This ensures novel combination possibilities of fragrances per se.

[0008] The additional fluid fragrance may already be contained in the cover, pre-assembled, and then the user fills the reservoir with it. As explained, combinations of fragrances are also possible, which can enhance and / or complement each other. For example, the first fluid fragrance and a third fragrance, also in fluid form, may already be contained in the cover, and the user then fills the reservoir with the additional fluid fragrance.

[0009] In one embodiment of the invention, the covering device is a container, for example a type of insertable cartridge, with flow openings that allow at least parts of the fluid fragrance and / or the further fluid fragrance to escape, but which does not involve the leakage of the fluid fragrance and / or the further fluid fragrance, but only the absorption and release of the fragrances contained by the fluid carrier substance.

[0010] The covering device can also have several chambers in order to contain several substances per chamber and thus several different fragrance substances, for example the fluid fragrance substance and / or the other fluid fragrance substance.

[0011] The covering device may contain at least one granule that can store the fluid fragrance or at least partially store the fluid fragrance and / or the other fluid fragrance.

[0012] In a further embodiment of the invention, the at least one means can be a textile structure, and combinations of different means are also possible, such as a combination of granules and a textile structure.

[0013] Textile structures within the meaning of the invention comprise at least one nonwoven fabric, for example folded, at least one woven fabric, for example folded, at least one knitted fabric or similar, which closes the outlet opening and has a larger area than the cross-sectional area of ​​the outlet opening itself, and the textile structure that can store the fluid fragrance or already stores the fluid fragrance and / or the further fluid fragrance at least partially. Thus, in this embodiment, a combination of fragrances as described above is also possible.

[0014] The additional fragrance, including fluid fragrance, can already be contained in the cover device, pre-assembled, and the fluid fragrance is then poured into the reservoir by the user.

[0015] In one embodiment of the aforementioned design, the surface area of ​​the textile structure is at least twice the cross-sectional area of ​​the outlet opening itself. This represents an exemplary embodiment of the invention.

[0016] Furthermore, the diffuser may be provided with at least one fan, wherein the fan and the reservoir are arranged in the diffuser such that the airflow from the operated fan can flow through an upper region of the reservoir, and wherein the reservoir has at least one airflow opening, preferably two airflow openings as an inlet and outlet, which are covered by the cover device inserted into the reservoir with its flow openings. This ensures that the airflow generated by the fan can also flow through the granules or textile structure contained in the cover device, each containing the liquid fragrance, and / or the additional liquid fragrance.

[0017] The solution according to the invention reduces the leakage of the liquid fragrance when the diffuser and its reservoir tip over, since the granules or textile structure contained in the cover can absorb the leaking liquid fragrance. If the cover according to the invention contains the liquid fragrance and / or the additional liquid fragrance, the surface area over which the liquid fragrance and / or the additional liquid fragrance can be released is increased. This leads to improved fragrance release, even when the cover is subjected to the airflow from the fan.

[0018] Furthermore, the cover device according to the invention can also serve as an intermediate storage medium for the fluid fragrance, which is temporarily stored in the cover device from the reservoir. This enables effective release of the fragrance into the environment. Additionally, the fluid fragrance and / or further fluid fragrances are released during the controlled flow through the cover device by the airflow generated by the fan. However, the release of the fluid fragrance and / or further fluid fragrances, or fragrances in general, occurs naturally without any device assistance. The fan merely distributes the fragrances.

[0019] A further advantage of the solution according to the invention is that, if the cover device is already pre-assembled with at least one fragrance, and thus also already contains the fluid fragrance and / or the other fluid fragrance, a quick change of fragrance is possible by replacing the cover device.

[0020] The invention is further explained below with reference to an exemplary embodiment and the figures. This will reveal further advantages, features, and embodiments of the invention.

[0021] They show: Fig. 1 A schematic representation of the insertion of a reservoir with a separate cover device in the form of a cartridge containing granules, in the exemplary embodiment expanded clay Fig. 2 a schematic sectional view of the diffuser

[0022] In the Fig. 1 and Fig.Figure 2 shows an embodiment of the diffuser 1 according to the invention. It has a housing in which a fan 7 is integrated with the corresponding electronic components, such as a battery, circuitry, and other components necessary for operation. A reservoir 2 can also be inserted into the diffuser 1. It is a container with an outlet opening 5 that can hold a liquid fragrance 4. The reservoir 2 is functionally inserted into the diffuser 1, filled with the liquid fragrance 4.It has a removable cover 3 at its outlet opening 5, which covers and thus closes the outlet opening 5 of the reservoir 2 when in use and which, according to the invention, ensures an increase in the release surface area of ​​the fluid fragrance 4, in that the cover 3 itself includes at least one means that can store a fragrance, including the fluid fragrance 4 contained in the reservoir 2, and wherein the surface area of ​​the at least one means is larger than the cross-sectional area of ​​the outlet opening 5, through which the fluid fragrance 4 can usually escape into the environment of the diffuser 1.

[0023] In the exemplary embodiment, the cover device 3 also has flow openings 6 that allow for the intake and outlet of at least some of the fragrance. This does not involve the leakage of the fluid fragrance 4, but only the release of the fragrances contained in the fluid carrier substance. Furthermore, in the exemplary embodiment, the cover device 3 includes, as at least one means, a granulate that can store the fluid fragrance 4 if, for example, the diffuser 1 tips over and the fluid fragrance 4 is at risk of leaking from the reservoir 2 and thus entering the surroundings of the diffuser 1. The cover device 3 prevents this by means of the at least one means it contains, in the exemplary embodiment the granulate, which is suitable for storing liquids. In the exemplary embodiment, this is expanded clay granulate.If the diffuser 1 tips over, and the fluid fragrance 4 runs towards the outlet opening 5 of the reservoir 2, the at least one substance contained in the cover device 3, such as the granules, can absorb the fragrance 4 and thus at least reduce any leakage.

[0024] The fan 7 integrated into the diffuser 1 is arranged in the diffuser 1 together with the reservoir 2 in such a way that the airflow from the operating fan 7 flows through an upper region of the reservoir 2. The reservoir 2 also has two airflow openings 9, which are covered by the cover 3 inserted into the reservoir 2. In this region of the airflow openings 9 of the reservoir 2, the cover 3 itself has flow openings 6, which allow the airflow generated by the fan 7 to also flow through the at least one medium contained in the cover 3, in this exemplary embodiment the granules. The granules increase the surface area, i.e., the release area, through which the liquid fragrance 4 can be released into the environment.The at least one element, in this exemplary embodiment the granules, can either already contain a first fragrance in a pre-formulated form, or it can absorb the fluid fragrance 4 contained in reservoir 2, or any other fragrance contained therein, as a kind of intermediate storage medium when it escapes from reservoir 2, either through normal evaporation or when the diffuser 1 tips over and the fluid fragrance 4 contained in reservoir 2 therefore flows towards the cover 3 and is thus absorbed, i.e., stored, by the at least one element, i.e., the granules. This then provides protection against leakage. Reference symbol list: 1. Diffuser 2. Reservoir 3. Cover device 4. fluid fragrance 5. Exit opening 6. Flow openings 7. Fan 8. Upper area 9. Airflow opening

Claims

[1] Diffuser (1) for fluid fragrances (4), with at least one reservoir (2) arranged in the diffuser (1) and the reservoir (2) serving to receive at least one fluid fragrance (4), wherein the at least one reservoir (2) has a removable cover (3) at its outlet opening (5) which covers the outlet opening (5) of the reservoir (2) and which provides an increase in the release area of ​​the fluid fragrance (4) by the cover (3) having at least one means which can store the fluid fragrance (4) contained in the reservoir (2) and wherein the surface area of ​​the at least one means is larger than the cross-sectional area of ​​the outlet opening (5) through which the fluid fragrance (4) can usually escape into the environment of the diffuser (1). [2] Diffuser (1) according to claim 1, wherein the cover device (3) is a container having flow openings (6). [3] Diffuser (1) according to one of the preceding claims 1 or 2, wherein the at least one means is a granulate and / or a textile structure which can store the fluid fragrance (4). [4] Diffuser (1) according to claim 3, wherein the textile structure closes the outlet opening (5) and has a larger area than the cross-sectional area of ​​the outlet opening (5) itself. [5] Diffuser (1) according to one of the preceding claims, wherein the cover device (3) has several chambers to contain several means per chamber and thus several different fragrance substances, for example the fluid fragrance substance (4) and another fluid fragrance substance. [6] Diffuser (1) according to one of the preceding claims, wherein the diffuser (1) has at least one fan (7), wherein the fan (7) and the reservoir (2) are arranged in the diffuser (1) such that the airflow of the operated fan (7) can flow through an upper region (8) of the reservoir (2) and wherein the reservoir (2) has at least one airflow opening (9) which is covered by the cover device (3) inserted into the reservoir (2) with its flow openings (6). [7] Covering device (3) for a diffuser (1) according to any one of claims 1 to 6, wherein the covering device (3) has at least one means that can store the fluid fragrance (4) contained in the reservoir (2) of the diffuser (1) and wherein the surface area of ​​the at least one means is larger than the cross-sectional area of ​​the outlet opening (5) of the diffuser (1) through which the fluid fragrance (4) can usually escape into the environment of the diffuser (1). [8] Covering device (3) according to claim 7, wherein the covering device (3) has at least one means which at least partially stores the fluid fragrance (4) and / or another fluid fragrance. [9] Covering device (3) according to one of claims 7 or 8, wherein the covering device (3) has several chambers to contain several means per chamber and thus to contain several different fragrance substances, for example the fluid fragrance substance (4) and / or the further fluid fragrance substance.