A liner assembly and fragrance diffuser

Abstract

The utility model discloses a kind of inner container assembly and fragrance expander, including air pump, inner container and inner lining, the outside of inner container is equipped with airflow passage of spiral structure, can be converted into stable, continuous, ordered spiral flow with the original airflow that air pump generates, possibly with turbulence and pulse, to ensure the sustainability and stability of fragrance expansion effect;Inner lining is provided with noise reduction structure;Firstly, the stiffener of noise reduction structure improves the structural rigidity of inner lining, suppresses the mechanical vibration generated when air pump works;Secondly, the partition groove of stiffener can play the role of releasing internal stress and dividing vibration mode, greatly dampens and dissipates vibration energy;Thirdly, the soundproofing cotton of inner lining outer wall can efficiently absorb and dissipate the medium-high frequency airflow noise generated by air pump operation, block the path of noise spreading outward through air, so that fragrance expander can realize very low noise level when running, provide tranquil and peaceful fragrance environment for user.

Description

Technical Field

[0001] This utility model relates to the field of aromatherapy equipment technology, specifically to an inner liner component and an aroma diffuser. Background Technology

[0002] An air pump diffuser is a device that uses a miniature air pump to generate a high-pressure airflow, which utilizes the Venturi effect to directly atomize pure essential oils into ultrafine particles and diffuse them into the air. It has advantages such as a wide diffusion range and no water stains, and is commonly used in homes, hotels, shopping malls, office buildings, vehicles and other settings.

[0003] In existing technologies, the airflow generated by the air pump is usually delivered to the atomizing tube through a simple straight channel. This channel design has limited rectification effect on the airflow and is prone to turbulence and pulse fluctuations. Unstable airflow directly leads to unstable negative pressure generated by the Venturi effect, resulting in uneven absorption of essential oils, inconsistent particle size of atomized particles, and even intermittent mist interruption.

[0004] Meanwhile, air pumps are typically fixed to the inner wall of the casing with a simple bracket. This installation method lacks effective vibration damping and isolation design, causing the mechanical vibrations generated when the air pump is working to be directly transmitted to the entire casing, thus producing vibration noise. This not only seriously affects the user experience, especially in places such as bedrooms and studies where a quiet environment is required, but also limits the development of aroma diffusers towards high-end and silent designs. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an inner liner component and a diffuser. Through a special airflow channel structure, the turbulence generated by the air pump is transformed into a stable vortex, resulting in a more delicate and uniform atomization effect of the diffuser. Furthermore, a special noise reduction structure is used to reduce vibration and noise in the diffuser, achieving ultra-quiet operation.

[0006] To achieve this objective, the present invention adopts the following technical solution: On one hand, this embodiment provides an inner liner assembly, including: An air pump, which is used to output gas; The inner liner has an airflow channel on its outer side, which is used to convert the gas generated by the air pump into a stable airflow. The air pump and the inner liner are both installed inside the liner. The liner is provided with a noise reduction structure, which is used to reduce the noise generated by the air pump.

[0007] As a preferred embodiment of the inner liner assembly, the outer wall of the inner liner is tightly fitted with the inner wall of the inner liner, and the outer wall of the inner liner is provided with a groove, which forms an airflow channel with the inner wall of the inner liner.

[0008] As a preferred embodiment of the inner liner assembly, the airflow channel has a spiral structure and is spirally wound around the outside of the inner liner.

[0009] As a preferred embodiment of the inner liner assembly, the noise reduction structure includes a reinforcing plate wrapped around the outside of the inner liner. The reinforcing plate is integrally formed with the inner liner, and a plurality of partition grooves are spaced apart on the reinforcing plate. The partition grooves and the reinforcing plate form a grid structure to reduce air pump vibration and airflow noise.

[0010] As a preferred embodiment of the inner liner assembly, the noise reduction structure further includes a first sound-insulating cotton and a second sound-insulating cotton, wherein the first sound-insulating cotton is disposed on the outer side of the inner liner and the second sound-insulating cotton is disposed on the outer side of the air pump.

[0011] As a preferred embodiment of the inner liner assembly, the inner liner is provided with a first receiving cavity and a second receiving cavity in sequence along its length direction. The first receiving cavity and the second receiving cavity are connected by a through hole. One end of the inner liner is inserted into the first receiving cavity, and the air pump is inserted into the second receiving cavity, with the output end of the air pump located in the through hole.

[0012] As a preferred embodiment of the inner liner assembly, the inner liner includes an annular liner body and a bottom plate. The bottom plate is disposed at one end of the annular liner body near the inner liner. The airflow channel is disposed on the outer side of the annular liner body. The bottom plate, the bottom surface of the first receiving cavity, and the inner sidewall form a first air chamber. The output end of the air pump and the airflow channel are both connected to the first air chamber, so that the gas generated by the air pump can flow into the airflow channel.

[0013] As a preferred embodiment of the inner liner assembly, at least one connecting hole is provided on the outer side of the annular liner, the connecting hole connecting the airflow channel and the interior of the annular liner, and a sealing ring is provided between the first receiving cavity and the outer wall of the annular liner, the sealing ring being positioned higher than the connecting hole to prevent gas from flowing out.

[0014] As a preferred embodiment of the inner liner assembly, the outer side of the annular liner is provided with a slot, and the inner liner is provided with a locking tooth at one end of the first receiving cavity. The locking tooth engages with the slot to achieve fixation.

[0015] On the other hand, this embodiment also provides a diffuser, including the above-mentioned inner liner assembly, and further including: The outer casing, the air pump, the inner liner and the inner lining are all disposed inside the outer casing; An essential oil bottle, wherein the essential oil bottle is located inside the inner liner; The mounting bracket is detachably connected to the inner liner and the essential oil bottle, respectively. The second air chamber is formed by the inner wall and bottom surface of the inner liner, the outer wall of the essential oil bottle, and the mounting bracket.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) The inner liner of this utility model breaks through the limitations of the traditional straight airflow channel and innovatively designs a spiral airflow channel. The spiral airflow channel can transform the original airflow generated by the air pump, which may have turbulence and pulse, into a stable, continuous and orderly vortex. When this stable vortex reaches the atomizing tube, it can form a low-pressure zone with strong negative pressure and continuous stability, thereby ensuring a constant suction force on the essential oil. The essential oil is impacted and atomized into ultra-fine dry fog with more uniform particle size, ensuring the continuity and stability of the aroma diffusion effect.

[0017] (2) The inner lining of this utility model is innovatively designed with a noise reduction structure. Firstly, the noise reduction structure improves the structural rigidity of the inner lining through the reinforcing plate, which can suppress the mechanical vibration generated when the air pump is working and prevent it from being transmitted to the machine shell and causing resonance amplification. Secondly, the partition groove of the reinforcing plate can release internal stress and disrupt the vibration mode, greatly damping and dissipating vibration energy, thereby suppressing resonance. Thirdly, the sound insulation cotton on the outer wall of the inner lining can efficiently absorb and dissipate the mid-to-high frequency airflow noise generated by the air pump, blocking the path of noise propagation outward through the air. Through the coordinated cooperation of the various components of the noise reduction structure, this utility model forms a complementary noise reduction system, enabling the diffuser to achieve an extremely low noise level during operation, providing users with a quiet and peaceful fragrance environment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the combined structure of the inner liner component according to Embodiment 1 of this utility model.

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the inner liner component according to Embodiment 1 of this utility model.

[0021] Figure 3 This is a schematic diagram of the inner liner structure according to Embodiment 1 of this utility model.

[0022] Figure 4 This is a cross-sectional structural diagram of the inner liner as described in Embodiment 1 of this utility model.

[0023] Figure 5 This is a schematic diagram of the lining structure described in Embodiment 1 of this utility model.

[0024] Figure 6 This is a cross-sectional structural diagram of the lining described in Embodiment 1 of this utility model.

[0025] Figure 7 This is a schematic diagram of the overall structure of the diffuser described in Embodiment 2 of this utility model.

[0026] Figure 8 This is a schematic diagram of the disassembled structure of the aroma diffuser described in Embodiment 2 of this utility model.

[0027] Figure 9 This is a partial cross-sectional structural diagram of the diffuser described in Embodiment 2 of this utility model.

[0028] Explanation of reference numerals in the attached figures: 1. Air pump; 2. Inner liner; 21. Airflow channel; 22. Slot; 23. Connecting hole; 24. Annular liner; 25. Base plate; 3. Lining; 31. First receiving cavity; 32. Second receiving cavity; 33. Locking teeth; 4. Noise reduction structure; 41. Reinforcing plate; 42. Dividing groove; 43. First sound insulation cotton; 44. Second sound insulation cotton; 5. First air chamber; 6. Second air chamber; 7. Sealing ring; 8. Outer shell; 81. Base; 9. Essential oil bottle; 10. Mounting bracket. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Example 1: like Figure 1 and Figure 2 As shown, this embodiment provides an inner liner assembly, including an air pump 1, an inner liner 2, and an inner liner 3. The air pump 1 is mainly used to output gas. An airflow channel 21 is provided on the outer side of the inner liner 2. The gas output by the air pump 1 can enter the airflow channel 21. Since the gas output by the air pump 1 is prone to turbulence and pulse fluctuations, the airflow is unstable. The airflow channel 21 of the inner liner 2 can rectify the gas output by the air pump 1 and convert it into a stable, continuous, and orderly swirling flow.

[0034] In this embodiment, the airflow channel 21 of the inner liner 2 can adopt the following structure: like Figure 3 As shown, the outer wall of the inner liner 2 fits tightly with the inner wall of the inner liner 3, and the outer wall of the inner liner 2 has a groove. The groove and the inner wall of the inner liner 3 form an airflow channel 21. The airflow channel 21 preferably adopts a spiral structure and is wrapped around the outer side of the inner liner 2. When the gas generated by the air pump 1 flows in the spiral airflow channel 21, it can not only transform the irregular turbulence into a more regular and orderly vortex, but also absorb and weaken the pulse fluctuations of the airflow, making the airflow to the atomizing tube more stable and continuous. When this stable vortex reaches the atomizing tube, it can form a low-pressure zone with strong negative pressure and continuous stability, thereby ensuring a constant suction force for the essential oil. The essential oil is impacted and atomized into ultra-fine dry mist with a more uniform particle size, ensuring the continuity and stability of the aroma diffusion effect.

[0035] like Figure 4 As shown, the inner liner 2 specifically includes an annular liner 24 and a bottom plate 25. The airflow channel 21 is located on the outside of the annular liner 24, and the bottom plate 25 is located at one end of the annular liner 24 near the inner liner 3. The bottom plate 25 and the annular liner 24 can be fixed and sealed by welding, or they can be detachably connected. The specific choice can be made according to the usage requirements.

[0036] To facilitate the fixing of the air pump 1 and the inner liner 2, both the air pump 1 and the inner liner 2 are installed inside the liner 3. Since the air pump 1 will generate mechanical vibration when it is working and transmit it to other components, the liner 3 in this embodiment is provided with a noise reduction structure 4, which can effectively reduce the vibration and noise generated by the air pump 1.

[0037] In this embodiment, the noise reduction structure 4 can adopt the following structure: like Figure 5 As shown, the noise reduction structure 4 includes a reinforcing plate 41 wrapped around the outside of the inner liner 3. The reinforcing plate 41 is integrally formed with the inner liner 3. The reinforcing plate 41 can improve the structural rigidity of the inner liner 3, thereby suppressing the mechanical vibration generated when the air pump 1 is working and preventing it from being transmitted to the machine shell and causing resonance amplification. Several partition grooves 42 are spaced apart on the reinforcing plate 41. The partition grooves 42 and the reinforcing plate 41 form a grid structure. The grid structure can divide the original whole vibration mode into two or more weakly coupled local modes. These local modes have different natural frequencies and may also have inconsistent phases. They are difficult to be synchronously excited by the same excitation source to generate strong overall resonance, thereby playing the role of releasing internal stress and disrupting vibration modes, greatly damping and dissipating vibration energy, and achieving the purpose of suppressing resonance.

[0038] To further enhance the sound insulation effect, the noise reduction structure 4 in this embodiment can also be equipped with a first sound insulation cotton 43 and a second sound insulation cotton 44. The first sound insulation cotton 43 is fitted on the outside of the inner lining 3, while the second sound insulation cotton 44 is fitted on the outside of the air pump 1. The second sound insulation cotton 44 is tightly fitted with the inner wall of the inner lining 3. The first sound insulation cotton 43 and the second sound insulation cotton 44 can efficiently absorb and dissipate the medium and high frequency airflow noise generated by the operation of the air pump 1, blocking the path of noise propagation outward through the air.

[0039] In this embodiment, the noise reduction structure 4 forms a complementary noise reduction system through the coordinated cooperation of various components, enabling the air pump 1 to achieve an extremely low noise level during operation, providing users with a quiet and peaceful fragrance environment.

[0040] like Figure 6 As shown, the liner 3 of this embodiment is provided with a first receiving cavity 31 and a second receiving cavity 32 along its length direction. The first receiving cavity 31 and the second receiving cavity 32 are connected by a through hole. One end of the inner liner 2 is inserted into the first receiving cavity 31, and the air pump 1 is inserted into the second receiving cavity 32. The output end of the air pump 1 is located in the through hole.

[0041] To limit the inner liner 2, a groove 22 is provided on the outer side of the annular liner 24 in this embodiment, and a tooth 33 is provided at one end of the inner liner 3 located in the first receiving cavity 31. The tooth 33 engages with the groove 22 to achieve fixation, thereby limiting the relative position of the inner liner 2 and the inner liner 3 in the radial direction and ensuring their coaxiality.

[0042] To facilitate the insertion of the locking tooth 33 into the slot 22, this embodiment may also provide a guide slope on the inner wall of the top surface of the locking tooth 33, and the inner liner 3 is preferably made of an elastic material. During assembly, when the locking tooth 33 contacts the outer edge of the annular bladder 24, it can elastically deform outward under the guidance of the guide slope until the locking tooth 33 enters the slot 22, at which point the locking tooth 33 returns to its original shape, thus completing the assembly of the two.

[0043] In this embodiment, the bottom surface and inner wall of the base plate 25 and the first receiving cavity 31 form a first air chamber 5. The output end of the air pump 1 and the airflow channel 21 are both connected to the first air chamber 5, so that the gas generated by the air pump 1 can flow into the airflow channel 21 through the first air chamber 5.

[0044] Meanwhile, a connecting hole 23 is provided on the outer side of the annular bladder 24. The number of connecting holes 23 can be one or more. In this embodiment, one connecting hole 23 is preferably provided. The connecting hole 23 connects the airflow channel 21 and the interior of the inner bladder 2. A sealing ring 7 is provided between the first receiving cavity 31 and the outer side wall of the inner bladder 2. The sealing ring 7 is positioned higher than the connecting hole 23 to prevent gas from flowing out.

[0045] It should be noted that there should be an appropriate distance between the connection hole 23 and the base plate 25 in this embodiment to avoid essential oil leakage.

[0046] Example 2: like Figure 7 and Figure 8 As shown, this embodiment provides a diffuser, including the inner liner assembly of Embodiment 1, and also includes a shell 8, an essential oil bottle 9, a mounting bracket 10, and a second air chamber 6. The shell 8 preferably adopts a hollow structure, with a base 81 at the bottom and an opening at the top that communicates with its interior. The air pump 1, the inner liner 2, and the inner lining 3 are all located inside the shell 8.

[0047] It is understood that the housing 8 in this embodiment is also equipped with components such as a controller and a battery pack. At the same time, the base 81 is equipped with several control buttons. The control buttons are electrically connected to the controller inside the housing 8 through wires to realize intelligent control of the diffuser.

[0048] In this embodiment, the essential oil bottle 9 is located inside the inner liner 2, and the mounting bracket 10 is detachably connected to the inner liner 2 and the essential oil bottle 9 respectively. Furthermore, corresponding sealing structures are required between the essential oil bottle 9 and the mounting bracket 10, between the mounting bracket 10 and the inner liner 2, and between the mounting bracket 10 and the atomizing head to prevent leakage.

[0049] It should be noted that the top of the mounting bracket 10 is equipped with an atomizing head, and the mounting bracket 10 is also equipped with an atomizing core, an oil suction pipe, an air inlet, and an atomizing channel communicating with the atomizing head. This utility model does not involve improvements to the atomizing head and the oil suction pipe. The atomizing head and the oil suction pipe can refer to existing technologies. For example, the oil suction pipe can refer to the utility model patent with publication number CN220195287U, "A novel flow guiding device and a container containing the same", while the atomizing head can refer to the utility model patent with publication number CN220424250U, "An oil leakage-proof diffuser".

[0050] like Figure 9 As shown, the second air chamber 6 is formed by the inner wall of the annular bladder 24, the outer wall of the essential oil bottle 9, the base plate 25, and the mounting bracket 10. The second air chamber 6 is connected to the first air chamber 5 through the connecting hole 23. When the diffuser is working, the air pump 1 starts, generating a high-pressure airflow that first enters the first air chamber 5. Since the first air chamber 5 is connected to the airflow channel 21, the high-pressure airflow will flow into the airflow channel 21. The spiral structure of the airflow channel 21 transforms the irregular turbulence into a more regular and orderly vortex. The stable vortex then enters the second air chamber 6 through the connecting hole 23. The gas in the second air chamber 6 supplies air to the atomizing core through the air inlet on the mounting bracket 10, and then atomizes the essential oil through the atomizing core and oil suction tube, and then inputs it into the environment from the top atomizing head, thereby achieving the effect of diffused aroma.

[0051] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. An inner liner assembly, characterized in that, include: An air pump (1) is used to output gas; The inner liner (2) has an airflow channel (21) on its outer side, which is used to convert the gas generated by the air pump (1) into a stable airflow. The liner (3) is installed inside the air pump (1) and the inner liner (2). The liner (3) is provided with a noise reduction structure (4) to reduce the noise generated by the air pump (1).

2. The inner liner assembly according to claim 1, characterized in that, The outer wall of the inner liner (2) fits tightly with the inner wall of the inner liner (3), and the outer wall of the inner liner (2) is provided with a groove, which forms an airflow channel (21) with the inner wall of the inner liner (3).

3. The inner liner assembly according to claim 2, characterized in that, The airflow channel (21) has a spiral structure and is spirally wound around the outside of the inner liner (2).

4. The inner liner assembly according to claim 1, characterized in that, The noise reduction structure (4) includes a reinforcing plate (41) wrapped around the outside of the inner lining (3). The reinforcing plate (41) is integrally formed with the inner lining (3), and a plurality of partition grooves (42) are spaced apart on the reinforcing plate (41). The partition grooves (42) and the reinforcing plate (41) form a grid structure to reduce the vibration of the air pump (1) and the airflow noise.

5. The inner liner assembly according to claim 4, characterized in that, The noise reduction structure (4) further includes a first sound insulation cotton (43) and a second sound insulation cotton (44), the first sound insulation cotton (43) being disposed on the outside of the inner lining (3), and the second sound insulation cotton (44) being disposed on the outside of the air pump (1).

6. The inner liner assembly according to claim 1, characterized in that, The liner (3) is provided with a first receiving cavity (31) and a second receiving cavity (32) in sequence along its length direction. The first receiving cavity (31) and the second receiving cavity (32) are connected by a through hole. One end of the inner liner (2) is inserted into the first receiving cavity (31), and the air pump (1) is inserted into the second receiving cavity (32). The output end of the air pump (1) is located in the through hole.

7. The inner liner assembly according to claim 6, characterized in that, The inner liner (2) includes an annular liner (24) and a bottom plate (25). The bottom plate (25) is located at one end of the annular liner (24) near the inner liner (3). The airflow channel (21) is located on the outside of the annular liner (24). The bottom plate (25) and the bottom surface and inner wall of the first receiving cavity (31) form a first air chamber (5). The output end of the air pump (1) and the airflow channel (21) are both connected to the first air chamber (5), so that the gas generated by the air pump (1) can flow into the airflow channel (21).

8. The inner liner assembly according to claim 7, characterized in that, At least one connecting hole (23) is provided on the outer side of the annular bladder (24). The connecting hole (23) connects the airflow channel (21) and the interior of the annular bladder (24). A sealing ring (7) is provided between the first receiving cavity (31) and the outer wall of the annular bladder (24). The sealing ring (7) is positioned higher than the connecting hole (23) to prevent gas from flowing out.

9. The inner liner assembly according to claim 7, characterized in that, The outer side of the annular bladder (24) is provided with a slot (22), and the inner liner (3) is provided with a tooth (33) at one end of the first receiving cavity (31). The tooth (33) engages with the slot (22) to achieve fixation.

10. A diffuser comprising the inner liner assembly as described in any one of claims 1-9, characterized in that, Also includes: The outer shell (8), the air pump (1), the inner liner (2) and the inner lining (3) are all disposed inside the outer shell (8); An essential oil bottle (9) is located inside the inner liner (2); Mounting bracket (10), which is detachably connected to the inner liner (2) and the essential oil bottle (9) respectively; The second air chamber (6) is formed by the inner wall and bottom surface of the inner liner (2), the outer wall of the essential oil bottle (9), and the mounting bracket (10).

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