A refillable casing fragrance diffuser
By designing a diffuser with a replaceable outer shell and utilizing a clamping gap structure to achieve a detachable connection of the outer shell, the problems of fixed appearance and poor connection stability of existing equipment are solved, meeting users' personalized needs and improving the durability of the equipment.
Patent Information
- Application Number
- CN202521690244.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-08
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-08
AI Technical Summary
Existing aromatherapy diffusers have a fixed appearance that cannot be replaced at low cost. Furthermore, the connection between the outer shell and the atomizing body is unstable, and the operation is cumbersome, failing to meet users' personalized needs and improve their user experience.
Design a diffuser with a replaceable outer shell. The outer shell can be detachably connected by a clamping gap structure between the atomizing inner shell and the outer shell, enabling low-cost replacement of the outer shell. A protective layer is added to the outer shell of the atomizing inner shell to improve connection stability and durability.
It enables low-cost replacement of the appearance, meets users' personalized needs, improves the connection stability and durability of the device, avoids the atomizer components from becoming loose due to shell replacement, and provides wear-resistant and drop-resistant protection.
Smart Images

Figure CN224671847U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aroma diffuser equipment, and in particular to an aroma diffuser equipment with a replaceable outer shell. Background Technology
[0002] A diffuser is a device that transforms liquids into extremely fine mist or aerosol droplets. This transformation process makes the liquid easier to inhale, disperse evenly in the air, or adhere to surfaces. Therefore, diffusers have wide applications in various fields, including medical, household, beauty, and industrial applications.
[0003] Aroma diffusers are typically placed in easily visible locations such as desktops or car dashboards. As people's living standards continue to improve, users are increasingly pursuing individuality and fashion. Merchants need to not only improve the structure to enhance the performance of the equipment, but also customize the appearance of the diffusers to improve the user experience and meet users' demands for product individuality and fashion trends.
[0004] Existing aromatherapy diffusers have a fixed appearance, which does not provide a good user experience for customers. Although some solutions have emerged to modify the outer shell of the diffuser, changing the appearance of existing diffusers requires replacing the entire shell, which is costly. Alternatively, they may have drawbacks such as poor connection stability between the shell and the atomizing body, cumbersome operation, and poor replacement effect. Utility Model Content
[0005] Therefore, it is necessary to provide a diffuser with a replaceable outer casing.
[0006] To solve the above-mentioned technical problems, this utility model provides a diffuser with a replaceable outer shell, including an atomizing inner shell and an outer shell. The atomizing inner shell includes a lower shell and an upper shell that docks with the lower shell. A clamping gap is formed at the docking point of the upper shell and the lower shell. The outer shell includes a cover and an extension protruding inward from the cover. The extension partially passes through the clamping gap and extends into the atomizing inner shell. The width of the end of the extension is greater than the width of the clamping gap, so that the end of the extension is confined within the atomizing inner shell by the clamping gap. The cover is located outside the atomizing inner shell and encloses a receiving space. The atomizing inner shell is located within the receiving space of the cover. The upper shell and the lower shell are detachably connected.
[0007] Preferably, the upper end and the lower end of the outer shell are connected, the upper shell includes a panel, the outer side of the panel has a downwardly folded plate, the extension is inclined from top to bottom with an inclined surface, the inclined surface and the end of the extension form an upwardly opening receiving groove, and the end of the folded plate is aligned and inserted into the receiving groove.
[0008] Preferably, the end of the extension is provided with an upper baffle facing the upper shell, and the inner top surface of the panel is provided with a downwardly extending clamping plate. The clamping plate and the folding plate form a U-shaped clamping groove, and the top of the upper baffle extends into the clamping groove, so that one side of the upper baffle abuts against the folding plate and the other side abuts against the clamping plate.
[0009] Preferably, the upper shell includes a panel, the panel portion being recessed to form a mounting groove for accommodating the atomizing body, the mounting groove being inserted into the lower shell, the atomizing body including a liquid storage bottle and an atomizing nozzle, the atomizing nozzle being connected to the liquid storage bottle, and the upper end of the outer shell having an opening through which the opening of the mounting groove is exposed.
[0010] Preferably, the atomizing body is in contact with the inner wall of the mounting groove, the top surface of the atomizing body is higher than the top surface of the upper shell, and the top surface of the atomizing body is flush with the top surface of the outer shell.
[0011] Preferably, a bracket is provided inside the atomizing inner shell, and the middle end of the bracket is provided with a first mounting position for accommodating the atomizing air pump and a second mounting position for accommodating the power supply, and the bracket is inserted into the lower shell;
[0012] The upper shell is detachably connected to the upper end of the bracket, and the lower shell is detachably connected to the lower end of the bracket; or,
[0013] The upper shell is fixed to the upper end of the bracket, and the lower shell is detachably connected to the lower end of the bracket.
[0014] Preferably, the end of the extension is provided with an upper baffle and a lower baffle, such that the cross-section of the end of the extension is T-shaped, the upper baffle faces the direction of the upper shell, the lower baffle faces the direction of the lower shell, and the inner wall of the lower shell is provided with a stepped surface, which is adapted to the lower baffle.
[0015] Preferably, the atomizing body is in contact with the inner wall of the mounting groove, the top surface of the atomizing body is higher than the top surface of the upper shell, and the top surface of the atomizing body is flush with the top surface of the outer shell.
[0016] Preferably, the bottom of the lower shell is provided with a base, the outer shell is located directly above the base, there is a first gap between the bottom end of the outer shell and the top surface of the base, there is a second gap between the outer side wall of the atomizing inner shell and the inner side wall of the outer shell, the first gap and the second gap are connected and form a noise reduction space, and the accommodating space is adapted to the shape of the atomizing inner shell.
[0017] Preferably, the outer shell is made of a transparent material, and the lower shell has a docking cutout. A display screen is installed on the inner side of the lower shell at the docking cutout, so that the numerical display portion of the display screen is exposed through the docking cutout.
[0018] Preferably, the outer shell is made of a transparent material, and the lower shell has a cutout, in which a display screen is embedded.
[0019] The beneficial effects of this utility model are as follows: This utility model fits the outer shell onto the inner shell of the atomizing device. The upper and lower shells constituting the inner shell of the atomizing device have a clamping gap for fixing the outer shell. The upper and lower shells are detachably connected, thereby changing the width of the clamping gap. This allows the limiting part to be in a clamping or non-clamping state with the clamping gap, enabling the installation or removal of the outer shell from the outer shell, thus replacing the outer shell. Users can choose an outer shell of the diffuser that matches their preferences to wrap the inner shell of the atomizing device, achieving low-cost replacement of the outer shell to change the appearance, thereby meeting users' personalized needs. Furthermore, the connection structure between the outer shell and the inner shell of this application has good stability, preventing the atomizer components from becoming loose due to the replaceable structure of the outer shell. Moreover, the outer shell covering the inner shell of the atomizing device also provides a wear-resistant and drop-resistant protective layer, thereby improving the durability of the diffuser. When the outer shell is worn, scratched, or damaged, only the outer shell needs to be replaced, achieving low-cost replacement. Attached Figure Description
[0020] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.
[0021] Figure 1 This is a perspective view of a diffuser device according to a preferred embodiment of the present invention;
[0022] Figure 2 This is a perspective view of the diffuser device of the preferred embodiment of the present invention after the outer shell has been removed;
[0023] Figure 3 This is a perspective view of the outer shell of a preferred embodiment of the present utility model;
[0024] Figure 4 This is a three-dimensional schematic diagram of the upper shell of a preferred embodiment of the present utility model;
[0025] Figure 5 This is a perspective view of the lower shell of a preferred embodiment of the present invention;
[0026] Figure 6This is a schematic diagram of the shell portion of the diffuser device according to a preferred embodiment of the present invention;
[0027] Figure 7 This is a cross-sectional view of the housing portion of the diffuser device according to a preferred embodiment of the present invention;
[0028] Figure 8 for Figure 7 A magnified view of a section at point A in the middle;
[0029] Figure 9 This is a top view of the aroma diffuser according to Embodiment 2 of this utility model;
[0030] Figure 10 This is a cross-sectional view of section AA of the housing portion of the aroma diffuser according to Embodiment 2 of this utility model;
[0031] Figure 11 A cross-sectional view of the housing portion (BB) of the aroma diffuser according to Embodiment 2 of this utility model;
[0032] Figure 12 This is a perspective view of the aroma diffuser device after removing the outer casing according to Embodiment 2 of this utility model;
[0033] Figure 13 This is a three-dimensional schematic diagram of the lower shell of Embodiment 2 of this utility model;
[0034] In the diagram: 1. Upper shell; 2. Lower shell; 3. Clamping gap; 4. Outer shell; 41. Shell cover; 43. Extension; 431. Upper baffle; 432. Lower baffle; 5. Folding plate; 6. Receiving groove; 7. Mounting groove; 8. Atomizing body; 10. Opening; 11. Bracket; 12. First mounting position; 13. Second mounting position; 14. Step surface; 15. Base; 16. First gap; 17. Second gap; 18. Notch; 19. Display screen; 20. Clamping plate; 21. Support plate; 22. Docking cutout. Detailed Implementation
[0035] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.
[0036] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0038] refer to Figures 1-8 This utility model provides a diffuser with a replaceable outer shell, including an atomizing inner shell and an outer shell 4. The atomizing inner shell includes a lower shell 2 and an upper shell 1 that docks with the lower shell. A clamping gap 3 is formed at the docking point of the upper shell 1 and the lower shell 2. The outer shell 4 includes a shell cover 41 and an extension 43 that protrudes inward relative to the shell cover. The extension 43 partially passes through the clamping gap 3 and extends into the atomizing inner shell. The width of the end of the extension 43 is greater than the width of the clamping gap 3, so that the end of the extension 43 is confined within the atomizing inner shell by the clamping gap 3. The shell cover 41 is located outside the atomizing inner shell and forms a receiving space. The atomizing inner shell is located within the receiving space of the shell cover 41. The upper shell 1 and the lower shell 2 are detachably connected. The clamping gap can be used to fix the extension 43 of the outer shell. The upper shell 1 and the lower shell 2 are detachably connected, so that the lower port of the upper shell 1 and the upper port of the lower shell 2 can be close to or far from each other. This is used to change the width of the clamping gap 3, so that the extension 43 and the clamping gap 3 are in a clamping or non-clamping state, thereby realizing the installation or removal of the outer shell on the housing. This invention features an outer shell 4 fitted over an inner atomizing shell. The upper shell 1 and lower shell 2, constituting the inner atomizing shell, have a clamping gap 3 for securing the outer shell. The upper shell 1 and lower shell 2 are detachably connected, allowing the width of the clamping gap 3 to be changed through disassembly. This allows the extension 43 of the outer shell 4 to be clamped or unclamped with the clamping gap 3, enabling the installation or removal of the outer shell 4 from the inner atomizing shell and facilitating its replacement. Users can choose an outer shell that matches their aesthetic preferences to cover the inner atomizing shell, achieving low-cost replacement of the outer shell 4 to change its appearance and meet individual user needs. Furthermore, this clamping structure ensures a stable and secure connection between the outer shell 4 and the inner atomizing shell, preventing loosening. This clamping structure prevents the atomizer components from becoming loose due to the replacement of the outer shell 4. Moreover, the outer shell 4 over the inner atomizing shell provides a wear-resistant and impact-resistant protective layer, improving the durability of the diffuser. When the outer shell becomes worn, scratched, or damaged, only the outer shell needs to be replaced, achieving low-cost replacement.
[0039] In a preferred embodiment, the upper and lower ends of the outer shell 4 are connected, and the accommodating space is adapted to the shape of the inner shell of the atomizer. The upper end of the outer shell 4 is connected, so that the atomizer body 8 can be removed from the upper end of the outer shell 4, which facilitates the replacement of the liquid storage bottle. The lower end of the outer shell is connected, so that the lower shell 2 can be disassembled and removed from the lower end of the outer shell 4.
[0040] In a preferred embodiment, the upper shell 1 includes a panel with a downwardly folding plate 5 on its outer side. The extension 43 of the outer shell 4 is inclined from top to bottom, and an upward-opening receiving groove 6 is formed between the inclined surface and the end of the extension. The end of the folding plate 5 is aligned and inserted into the receiving groove 6. The alignment and insertion of the end of the folding plate 5 into the receiving groove 6 makes the connection between the upper shell 1 and the outer shell 4 more stable, avoiding displacement between parts that could lead to structural loosening.
[0041] In a preferred embodiment, the upper shell 1 includes a panel, the panel being recessed to form a mounting groove 7 for accommodating the atomizing body, and a receiving chamber is formed in the lower shell 2. The mounting groove 7 is inserted into the receiving chamber formed in the lower shell 2. The atomizing body 8 includes a liquid storage bottle and an atomizing nozzle, the atomizing nozzle being connected to the liquid storage bottle. The upper end of the outer shell 4 has an opening 10 through which the groove of the mounting groove 7 can be exposed. The opening exposes the mist outlet of the atomizing head of the atomizing body, making it easy to remove and replace the atomizing body formed by the liquid storage bottle and the atomizing nozzle.
[0042] In a preferred embodiment, a bracket 11 is provided inside the atomizing inner shell. The middle end of the bracket 11 is provided with a first mounting position 12 for accommodating the atomizing air pump and a second mounting position 13 for accommodating the power supply. The bracket 11 is inserted into the lower shell 2.
[0043] The upper shell 1 is detachably connected to the upper end of the bracket 11, and the lower shell 2 is detachably connected to the lower end of the bracket 11. In this way, by removing one of the upper shell 1 or the lower shell 2, the width of the clamping gap 3 can be changed, or the clamping gap 3 can be made to be in a non-clamping state, so that the outer shell 4 can be removed for replacement.
[0044] Alternatively, the upper shell 1 is fixed to the upper end of the bracket 11, and the lower shell 2 is detachably connected to the lower end of the bracket 11. In this way, by removing the lower shell 2, the width of the clamping gap 3 can be changed, or the clamping gap 3 can be made into a non-clamping state, thereby allowing the outer shell 4 to be removed for replacement.
[0045] In a preferred embodiment, the end of the extension is provided with an upper baffle 431 and a lower baffle 432, making the cross-section of the end of the extension T-shaped. The upper baffle 431 faces the upper shell 1, and the lower baffle 432 faces the lower shell 2. The inner wall of the lower shell 2 is provided with a stepped surface 14 forming a stepped groove, and the stepped surface 14 is adapted to the lower baffle 432. The T-shaped cross-section of the end of the extension ensures that the portion of the end of the extension 43 inside the atomizing inner shell fits tightly against the inner wall of the atomizing inner shell, making the clamping gap 3 more stable in fixing the outer shell 4.
[0046] In a preferred embodiment, a base 15 is provided at the bottom of the lower shell 2, and the outer shell 4 is located directly above the base 15. A first gap 16 exists between the bottom end of the outer shell 4 and the top surface of the base 15. A second gap 17 exists between the outer side wall of the atomizing inner shell and the inner side wall of the outer shell 4. The first gap 16 and the second gap 17 are connected and form a noise reduction space. The sound generated by the atomizing head and air pump during operation will be propagated and reduced in the noise reduction space, making the aroma diffuser quieter during operation.
[0047] In a preferred embodiment, the outer edge of the base 15 is flush with the outer surface of the housing 4.
[0048] In a preferred embodiment, the top surface of the atomizing body 8 is higher than the top surface of the upper shell 1, and the atomizing body 8 is in contact with the inner wall of the mounting groove 7, thus forming a certain connection between the atomizing body 8 and the mounting groove 7. The top surface of the atomizing body 8 is flush with the top surface of the outer shell 4. The top surface of the atomizing nozzle is flush with the top surface of the outer shell 4, so that the outer shell 4 can protect the atomizing nozzle and prevent wear and damage.
[0049] In a preferred embodiment, the outer shell 4 is made of a transparent material, and the lower shell 2 has a notch 18 for mounting a display screen 19. The transparent material of the outer shell 4 allows the display screen 19 to be clearly seen. Users can freely change the transparent material of the outer shell 4 according to their preference. Alternatively, the outer shell 4 can be made of an opaque material. Users can choose according to their own preferences. Optionally, the outer surface of the display screen 19 is flush with the outer surface of the lower shell, resulting in a smooth surface.
[0050] Preferably, the base and the bottom of the lower shell are aligned and connected to form a base cavity, and the base cavity is provided with a charging interface, which is electrically connected to a power source. Optionally, the charging interface is a Type-C interface; optionally, the upper shell and the bracket are connected by a first fastener, and the lower shell and the bracket are connected by a second fastener, both the first and second fasteners being screws. Preferably, the bottom surface of the upper shell is provided with an alignment strip, and the corresponding bracket is provided with a locking slot, the positions of the strip and the locking slot are aligned, facilitating positioning and installation during assembly.
[0051] The aroma diffuser mainly consists of an atomizing body, an air pump, a power supply, and a housing. The air pump and power supply are located inside the housing. Existing housing designs are relatively monotonous and cannot be replaced according to user needs, thus failing to meet personalized requirements. In this application, an air pump and a power supply are installed between the lower housing 2 and the support 11. The air pump is connected to the atomizing nozzle, and the power supply is located on the support, with the air pump electrically connected to the power supply.
[0052] Example 2
[0053] refer to Figures 9-13Compared with the structure in the preferred embodiment, the solution in this second embodiment also has the following structure: the inner top surface of the panel of the upper shell 1 is provided with a downwardly extending clamping plate 20, the clamping plate 20 and the folding plate 5 form a U-shaped clamping groove, the top end of the upper baffle 431 extends into the clamping groove, so that one side of the upper baffle 431 abuts against the folding plate 5 and the other side abuts against the clamping plate 20.
[0054] The top of the lower shell 2 is provided with an outwardly folded support plate 21, and the bottom surface of the extension 43 has a contact surface adapted to the support plate 21. The outer shell 4 abuts against the support plate 21 through the contact surface of the extension 43, and the end of the support plate 21 abuts against the inner surface of the shell cover 41.
[0055] The outer shell 4 is made of transparent material, and the lower shell 2 has a docking cutout 22. A display screen is installed on the inner side of the lower shell 2 at the docking cutout 22, so that the numerical display part of the display screen is exposed from the docking cutout 22.
[0056] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0057] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0058] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A diffuser with a replaceable outer shell, characterized in that, The device includes an inner atomizing shell and an outer shell. The inner atomizing shell includes a lower shell and an upper shell that abuts against the lower shell. A clamping gap is formed at the abutment of the upper shell and the lower shell. The outer shell includes a cover and an extension protruding inward from the cover. The extension partially passes through the clamping gap and extends into the inner atomizing shell. The width of the end of the extension is greater than the width of the clamping gap, so that the end of the extension is confined within the inner atomizing shell by the clamping gap. The cover is located outside the inner atomizing shell and encloses a receiving space. The inner atomizing shell is located within the receiving space of the cover. The upper shell and the lower shell are detachably connected.
2. The aroma diffuser with a replaceable outer shell as described in claim 1, characterized in that, The upper and lower ends of the outer shell are connected. The upper shell includes a panel with a downward-folding fold on the outer side of the panel. The extension is inclined from top to bottom with an inclined surface. An upward-opening receiving groove is formed between the inclined surface and the end of the extension. The end of the fold is aligned and inserted into the receiving groove.
3. The aroma diffuser with a replaceable outer shell as described in claim 2, characterized in that, An upper baffle is provided at the end of the extension, the upper baffle facing the upper shell, and a downwardly extending clamping plate is provided on the inner top surface of the panel. The clamping plate and the folding plate form a U-shaped clamping groove, and the top of the upper baffle extends into the clamping groove, so that one side of the upper baffle abuts against the folding plate and the other side abuts against the clamping plate.
4. The aroma diffuser with a replaceable outer shell as described in claim 1, characterized in that, The upper shell includes a panel, the panel being recessed to form a mounting groove for accommodating the atomizing body. The mounting groove is inserted into the lower shell. The atomizing body includes a liquid storage bottle and an atomizing nozzle. The atomizing nozzle is connected to the liquid storage bottle. The upper end of the outer shell has an opening through which the opening of the mounting groove is exposed.
5. The aroma diffuser with a replaceable outer shell as described in claim 4, characterized in that, The atomizing body is in contact with the inner wall of the mounting groove, the top surface of the atomizing body is higher than the top surface of the upper shell, and the top surface of the atomizing body is flush with the top surface of the outer shell.
6. The aroma diffuser with a replaceable outer shell as described in claim 1, characterized in that, The inner shell of the atomizer is provided with a bracket, and the middle end of the bracket is provided with a first mounting position for accommodating the atomizing air pump and a second mounting position for accommodating the power supply. The bracket is inserted into the lower shell. The upper shell is detachably connected to the upper end of the bracket, and the lower shell is detachably connected to the lower end of the bracket; or, The upper shell is fixed to the upper end of the bracket, and the lower shell is detachably connected to the lower end of the bracket.
7. The aroma diffuser with a replaceable outer shell as described in claim 1, characterized in that, The extension is provided with an upper baffle and a lower baffle at its end, so that the cross-section of the end of the extension is T-shaped. The upper baffle faces the upper shell and the lower baffle faces the lower shell. The inner wall of the lower shell is provided with a stepped surface, which is adapted to the lower baffle.
8. The aroma diffuser with a replaceable outer shell as described in claim 7, characterized in that, The top of the lower shell is provided with an outwardly folded support plate, the bottom surface of the extension has a contact surface adapted to the support plate, and the end of the support plate abuts against the inner surface of the shell.
9. The aroma diffuser with a replaceable outer shell as described in claim 1, characterized in that, The bottom of the lower shell is provided with a base, and the outer shell is located directly above the base. There is a first gap between the bottom end of the outer shell and the top surface of the base. There is a second gap between the outer side wall of the atomizing inner shell and the inner side wall of the outer shell. The first gap and the second gap are connected and form a noise reduction space. The accommodating space is adapted to the shape of the atomizing inner shell.
10. The aroma diffuser with a replaceable outer shell as described in claim 1, characterized in that, The outer shell is made of a transparent material, and a notch is provided on the lower shell, where a display screen is embedded or installed; The outer shell is made of transparent material, and the lower shell has a docking cutout. A display screen is installed on the inner side of the lower shell at the docking cutout, so that the numerical display part of the display screen is exposed through the docking cutout.