Fragrance diffuser

Abstract

The utility model relates to the field of aromatherapy machines, and provides a fragrance diffuser which comprises a main body, an atomizing head and a container, the atomizing head is connected with the container and used for extracting liquid in the container and mixing the liquid with high-pressure gas to form mist which escapes out of a cover body, a sealing assembly is arranged between the atomizing head and the main body to achieve sealing connection, and a pressure inner cavity is formed in the main body. A high-pressure air source is arranged to provide high-pressure air for the pressure inner cavity, the high-pressure air is supplied to the atomizing head through the pressure inner cavity, the improved structure is that a transition air chamber is further arranged, and the high-pressure air enters the pressure inner cavity after passing through the transition air chamber. The transition air chamber can buffer the flow speed of the high-pressure air, so that the pressure in the transition air chamber is distributed more uniformly, and the pressure stability of the high-pressure air is realized.

Description

Technical Field

[0001] This utility model relates to the field of aroma diffusers, and more specifically, to an aroma diffuser. Background Technology

[0002] Aroma diffusers, common household appliances in modern life, use specific technologies to transform aromatherapy liquids into fine mist, achieving multiple effects such as aromatherapy, humidification, and air purification. Among the many types of aroma diffusers, those that utilize high-pressure gas to create negative pressure to extract, mix, and then atomize the aromatherapy liquid are highly favored due to their efficient and rapid aroma diffusion characteristics. The working principle of this type of aroma diffuser is roughly as follows: high-pressure gas creates negative pressure through a specific device, attracting the aromatherapy liquid into the mixing area. Subsequently, the high-pressure gas and aromatherapy liquid are refined into tiny particles during high-speed mixing, ultimately being diffused in a mist form, creating a pleasant aromatherapy atmosphere.

[0003] In existing aroma diffuser products employing high-pressure gas atomization technology, one structure involves using an air pump to compress outside air into high-pressure gas and deliver it to a pressure chamber inside the diffuser. This pressure chamber-supply method involves directly placing an air inlet within the pressure chamber on the atomizing component. Its advantage is that during installation, there's no need to consider the installation direction or angle; simply insert and tighten or clip the atomizing component, and the air inlet naturally falls into the pressure chamber, where it is sealed by a sealing component, forming a closed pressure chamber. This structure is simpler to operate and eliminates concerns about air leakage. The pressure chamber plays a crucial role; it receives the high-pressure gas from the air pump and guides it to the atomizing head, providing a stable and pressurized gas source to ensure the aromatherapy liquid can be smoothly atomized and form a uniform mist.

[0004] However, in actual production and application, the design of the pressure cavity in the existing technology has revealed a series of problems that urgently need to be solved.

[0005] On the one hand, the pressure inside the cavity is difficult to control. Changes in the shape and size of the pressure cavity alter the flow path and spatial distribution of gas within it, making it difficult for the high-pressure gas output from the air pump to establish a stable pressure environment as expected after entering the cavity. When the shape of the pressure cavity is complex or its dimensions deviate, irregular flow phenomena such as eddies and backflow may occur within the cavity, resulting in a significant deviation between the actual pressure acting on the atomizing head and the output pressure set by the air pump. This pressure instability causes the atomization effect of the aromatherapy liquid to vary, and the amount and uniformity of mist production cannot be effectively guaranteed, thus affecting the overall performance and user experience of the aromatherapy diffuser.

[0006] On the other hand, the pressure distribution within the chamber is uneven. When the dimensions of the pressure chamber are not uniform, the pressure difference of the gas at different locations within the chamber is significant. The air pressure near the air pump inlet or in certain specific areas of the pressure chamber may be relatively high, while the air pressure further away from these areas may be lower. This uneven pressure distribution results in inconsistent air pressure acting on different parts of the atomizing head, causing differences in the degree of atomization of the aromatherapy liquid on the atomizing head. Utility Model Content

[0007] The present invention aims to overcome the shortcomings of the prior art and provide a solution for aromatherapy diffusers that can effectively solve the problems of difficult control and uneven distribution of pressure in the pressure cavity.

[0008] The present invention provides a diffuser comprising a main body, an atomizing head, and a container. The atomizing head is connected to the container and is used to extract liquid from the container and mix it with high-pressure gas to form a mist that escapes from the cover. A sealing assembly is provided between the atomizing head and the main body to achieve a sealed connection. A pressure chamber is formed within the main body, and a high-pressure air source provides high-pressure air to the pressure chamber. The high-pressure air is supplied to the atomizing head through the pressure chamber. The improved structure further includes a transition chamber through which the high-pressure air enters the pressure chamber. The transition chamber buffers the flow rate of the high-pressure air, making the pressure distribution within the transition chamber more uniform, thereby achieving pressure stability of the high-pressure air. Additionally, it effectively absorbs and disperses the noise generated by the high-pressure air, reducing the operating noise of the equipment, preventing the aromatherapy liquid from entering the high-pressure air source, and improving the user experience.

[0009] The specific structure includes an inner cavity and an outer shell. The inner cavity is located within the outer shell, and the container is placed within the inner cavity. A sealing assembly is positioned at the upper edge of the inner cavity to form a seal between the container and the atomizing head. A pressure chamber is formed between the container and the inner cavity. A high-pressure air source is connected to a transition chamber via a supply pipe. High-pressure air enters the transition chamber through the supply pipe and then enters the pressure chamber. Generally, the high-pressure air source is located between the inner cavity and the outer shell, preferably at the bottom of the inner cavity, and connected to the pressure chamber via an upward-extending supply pipe. This layered design of the inner cavity and outer shell, along with the rational layout of the container, sealing assembly, pressure chamber, and high-pressure air source, makes the entire device more compact and efficient.

[0010] To further optimize the above structure, the transition chamber surrounds the inner cavity, featuring an air inlet connected to the air supply pipe and multiple air outlets communicating with the inner cavity. This surround-designed transition chamber provides better structural support and enhances overall stability. The multiple air outlets allow high-pressure air to enter the inner cavity more evenly. These multiple air outlets are slit-shaped, extending vertically downwards from the upper end of the inner cavity, with their lower ends maintaining a certain distance from the bottom of the transition chamber. The slit-shaped air outlets increase the size of the outlets, preventing excessively high or low local pressures and avoiding a decrease in sidewall strength due to overly large openings, thus ensuring structural performance. Maintaining a certain distance between the slit-shaped air outlets and the bottom of the transition chamber creates a cavity at the bottom, allowing the atomized aromatherapy liquid to condense and remain within the transition chamber when it occasionally enters.

[0011] The sealing assembly structure is further optimized by including an outer sealing ring sleeved on the outer side of the upper port of the inner cavity and an inner sealing ring embedded on the inner side of the upper port of the inner cavity. The upper end faces of the outer and inner sealing rings are connected as a whole by a connecting ring surface. The double sealing ring design provides dual protection, significantly improving the sealing performance of the inner cavity. The connecting ring surface serves as a reference for installation and positioning, simplifying the assembly process.

[0012] To further secure the sealing assembly and prevent it from shifting during repeated pressing by the atomizing head, which could lead to a decrease in sealing performance, the connecting ring extends outward beyond the outer sealing ring to form a pressing ring surface. This pressing ring surface design allows it to be pressed and secured by other internal structures of the main body during assembly, as the sealing assembly is installed onto the upper port edge of the inner cavity. Specifically, the pressing ring surface is clamped and secured by the main body. Furthermore, to prevent displacement of the sealing assembly, a friction surface is provided between the main body and the pressing ring surface.

[0013] To ensure a smooth fit when the atomizing head is pressed down, a transition arc surface is provided on the connecting ring surface at the transition point towards the inner sealing ring. To further improve sealing performance, the height of the outer sealing ring is greater than that of the inner sealing ring, allowing the inner sealing ring to deform downwards and move a short distance during compression, forming a continuous elastic deformation seal. To uniformly compress the sealing assembly, the atomizing head has a pressing step corresponding to the position of the inner sealing ring, which presses down on the inner sealing ring. Alternatively, at least the lower part of the atomizing head has a conical surface that abuts against the inner edge of the inner sealing ring, allowing the inner sealing ring to gradually deform along the slope of the conical surface. Furthermore, the inner sealing ring can be designed as an inwardly extending stepped structure, with one or more steps extending inwards and downwards. This allows the elasticity of the stepped structure to better balance the spacing deformation and meet the sealing requirements when the conical surface of the atomizing head is pressed down.

[0014] Based on the numerous problems existing in the design and manufacturing of the pressure chamber of current aroma diffuser technology, this solution aims to provide an aroma diffuser solution that effectively addresses the issues of difficult pressure control and uneven pressure distribution within the pressure chamber through an innovative design that adds a transition air chamber to the internal pressure chamber structure. By implementing this solution, it is expected that the production process of aroma diffusers will eliminate the need for complex fine-tuning of air pump control programs for different models, reducing production difficulty and costs, improving production efficiency and product quality consistency, providing consumers with more stable and efficient aroma diffuser products, and promoting technological progress and healthy development in the aroma diffuser industry. Attached Figure Description

[0015] Figure 1 This is a perspective view of Embodiment 1 of the present utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of Embodiment 1 of this utility model.

[0017] Figure 3 This is the front view of Embodiment 1 of this utility model.

[0018] Figure 4 for Figure 3 AA section view.

[0019] Figure 5 This is a partial structural schematic diagram of Embodiment 1 of the present utility model.

[0020] Figure 6 for Figure 5 Installation diagram of the middle section structure.

[0021] Figure 7 This is a schematic diagram of the main body of Embodiment 1 of this utility model.

[0022] Figure 8 for Figure 7 Enlarged view of part I in the image.

[0023] Figure 9 A three-dimensional cross-sectional view with the main body as the AA section.

[0024] Figure 10 for Figure 9 Enlarged view of Part II.

[0025] Figure 11 for Figure 7 Another perspective diagram.

[0026] Figure 12 for Figure 11 Enlarged view of Part III.

[0027] Figure 13 for Figure 9 A diagram showing the detailed part numbers.

[0028] Figure 14 This is a schematic diagram of the transition chamber in Embodiment 1 of this utility model.

[0029] Figure 15 This is a cross-sectional perspective view of the sealing component of Embodiment 1 of this utility model.

[0030] Figure 16 for Figure 4 A three-dimensional view of the cross-sectional structure.

[0031] Figure 17 for Figure 16 Enlarged view of part IV in the image.

[0032] Figure 18 This is a schematic diagram of another part of the structure of Embodiment 1 of this utility model.

[0033] Figure 19 This is a cross-sectional view of Embodiment 2 of the present invention.

[0034] Figure 20 for Figure 19 A cross-sectional perspective view.

[0035] Figure 21 for Figure 20 Enlarged view of part V in the image.

[0036] Figure 22 This is a three-dimensional cross-sectional view of the sealing component of Embodiment 2 of this utility model.

[0037] Figure 23 This is a top view of Embodiment 2 of the present invention.

[0038] Figure 24 for Figure 23 BB cross-section three-dimensional view.

[0039] Figure 25 for Figure 24 Enlarged view of section VI.

[0040] Explanation of reference numerals in the attached drawings: Main body 100, atomizing head 200, container 300, cover 210, atomizing assembly 220, pressure cavity 400, high-pressure air source 500, control assembly 800, sealing assembly 600, fastening structure 700, fastening element 710, fastening groove 720, vertical part 721, horizontal part 722, transition slope 723, control panel 110, through hole 111, fastener 120, inner cavity 130, outer shell. 140, air supply pipe 510, transition air chamber 410, air inlet 411, air outlet 412, outer sealing ring 610, inner sealing ring 620, connecting ring surface 630, pressing ring surface 640, friction surface 641, transition arc surface 631, pressing step 221, conical surface 222, display layer 112, metal support layer 113, bracket 114, fastening groove 720, support structure 131, support step 141, flange 132. Detailed Implementation

[0041] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, 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.

[0042] Example 1

[0043] like Figure 1 As shown, this embodiment provides a diffuser, including a main body 100 and an atomizing head 200, combined with... Figure 2 As shown, the atomizing head 200 includes a cover 210 and an atomizing component 220. The atomizing component 220 is connected to the container 300. The atomizing component 220 draws liquid from the container 300 and mixes it with high-pressure gas to form a mist that escapes from the cover 210.

[0044] like Figure 3 and Figure 4 As shown, the atomizing head 200 is sealed to the main body 100, forming a pressure cavity 400 between the container 300 and the main body 100. A high-pressure air source 500 is provided at the bottom of the main body 100, which provides high-pressure air to the pressure cavity 400. The high-pressure air is supplied to the atomizing component 220 through the pressure cavity 400. A control component 800 is also installed inside the main body 100, and a sealing component 600 is provided between the atomizing head 200 and the main body 100.

[0045] like Figure 2 and Figure 5 As shown, the atomizing head 200 and the main body 100 are engaged by three circumferentially distributed fastening structures 700. Each fastening structure 700 includes a circumferentially protruding fastening element 710 on the atomizing head 200 and a circumferentially concave fastening groove 720 on the inner circumference of the main body 100. Figure 6As shown, the inner circumferentially concave fastening groove 720 of the main body 100 is generally L-shaped. The fastening groove 720 has a vertical part 721 for the fastening member 710 to be inserted vertically and a horizontal part 722 for the fastening member 710 to be inserted horizontally. A transition slope 723 is provided between the vertical part 721 and the horizontal part 722. When engaged, the atomizing head 200 and the main body 100 squeeze the sealing assembly 600 to achieve a seal.

[0046] like Figure 7 and Figure 8 As shown, a control panel 110 is provided on the upper surface of the main body 100. A through hole 111 is formed on the control panel 110 for mounting the atomizing head 200 and the container 300. A fastening groove 720 is provided inside the through hole 111. Figure 9 and Figure 10 As shown, the control component 800 is located below the control panel 110 and is fixed to the main body 100 by fasteners 120, in combination with... Figure 11 and Figure 12 As shown, the fastener 120 is arranged around the through hole 111 and is positioned at the location where the corresponding fastener 710 and the fastening groove 720 engage.

[0047] like Figure 13 As shown, the main body 100 includes an inner cavity 130 and an outer shell 140, with the inner cavity 130 disposed within the outer shell 140, combined with... Figure 4 As shown, container 300 is placed in inner cavity 130. Sealing assembly 600 is disposed at the upper port edge of inner cavity 130, forming a seal between it and atomizing assembly 220. Pressure cavity 400 is formed between container 300 and inner cavity 130. High-pressure air source 500 is disposed between inner cavity 130 and outer shell 140, and is connected to pressure cavity 400 via air supply pipe 510. A transition air chamber 410 is also provided between air supply pipe 510 and pressure cavity 400. High-pressure air enters transition air chamber 410 from air supply pipe 510 and then enters pressure cavity 400. Combined with... Figure 14 As shown, the transition air chamber 410 is formed around the inner cavity 130. It is provided with an air inlet 411 connected to the air supply pipe 510, and multiple air outlets 412 connected to the inner cavity 130. The air outlets 412 are slit-shaped and extend vertically downward from the upper port of the inner cavity 130, with their lower ends maintaining a certain distance from the bottom of the transition air chamber 410.

[0048] like Figure 15 and Figure 13As shown, the sealing assembly 600 includes an outer sealing ring 610 sleeved on the outer side of the upper port edge of the inner cavity 130 and an inner sealing ring 620 embedded in the inner side of the upper port edge of the inner cavity 130. The height of the outer sealing ring 610 is greater than that of the inner sealing ring 620. The upper end faces of the outer sealing ring 610 and the inner sealing ring 620 are connected into a whole by a connecting ring surface 630. A transition arc surface 631 is provided on the connecting ring surface 630 at the transition part to the inner sealing ring 620. The connecting ring surface 630 extends outward beyond the outer sealing ring 610 to form a pressing ring surface 640.

[0049] like Figure 16 and Figure 17 As shown, the pressing ring surface 640 is clamped and fixed by the main body 100. A friction surface 641 is provided between the main body 100 and the pressing ring surface 640. The atomizing component 220 is provided with a pressing step 221 at the position corresponding to the inner sealing ring 620, which presses the inner sealing ring 620 downward. The pressing step 221 directly presses the inner sealing ring 620.

[0050] like Figure 18 As shown, a control panel 110 is provided on the upper surface of the main body 100. A through hole 111 is formed on the control panel 110 for mounting the atomizing head 200 and the container 300. The control panel 110 includes, from top to bottom, a display layer 112, a metal support layer 113, and a bracket 114. Figure 10 As shown, the fastening groove 720 is provided inside the bracket 114, and a support structure 131 extends from the upper part of the inner cavity 130 to the outer shell 140, so that the inner cavity 130 is supported inside the outer shell 140. The bracket 114 is supported on the inner cavity 130 and the support structure 131, and together with the upper port of the inner cavity 130, it presses and fixes the sealing assembly 600.

[0051] Example 2

[0052] like Figure 19 As shown, this embodiment provides another type of aroma diffuser, which has a structure basically the same as the aroma diffuser in Embodiment 1 of this utility model, combined with... Figure 20 and Figure 21 As shown, in this embodiment, the pressure cavity 400 is formed between the container 300 and the inner cavity 130. The high-pressure air source 500 is disposed between the inner cavity 130 and the outer shell 140. There is no transition air chamber 410 between the air supply pipe 510 and the pressure cavity 400. The air supply pipe 510 is directly connected to the pressure cavity 400 through the air outlet 412.

[0053] like Figure 22As shown, the difference lies in that this embodiment also provides a sealing assembly 600 with another structure. The sealing assembly 600 includes an outer sealing ring 610 sleeved on the outer side of the upper port edge of the inner cavity 130 and an inner sealing ring 620 embedded in the inner side of the upper port edge of the inner cavity 130. The height of the outer sealing ring 610 is greater than that of the inner sealing ring 620. The inner sealing ring 620 extends inward in a stepped shape. The upper end faces of the outer sealing ring 610 and the inner sealing ring 620 are connected as a whole by a connecting ring surface 630. A transition arc surface 631 is provided on the connecting ring surface 630 at the transition part to the inner sealing ring 620. The connecting ring surface 630 extends outward beyond the outer sealing ring 610 to form a pressing ring surface 640. The lower part of the atomizing component 220 has a conical surface 222 that abuts against the inner edge of the inner sealing ring 620. After the sealing assembly 600 is fixed, its inner sealing ring 620 extends out from the inside of the through hole 111, and its inner diameter is smaller than the diameter of the through hole 111. When the atomizing component 220 is inserted into the through hole 111, the conical surface 222 gradually approaches the inner sealing ring 620 from small to large and comes into contact with the inner sealing ring 620, pressing the inner sealing ring 620 downward, causing the stepped structure to flip downward. The stepped structure has high deformation recovery elasticity and can tightly adhere to the side of the conical surface 222 to achieve a seal.

[0054] like Figure 23 , Figure 24 and Figure 25 As shown, a support step 141 is provided at the upper edge of the outer shell 140, and a flange 132 is provided outward from the support structure 131, with the flange 132 supporting the support step 141.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A diffuser, comprising a main body (100), an atomizing head (200), and a container (300), The atomizing head (200) is connected to the container (300) and is used to extract liquid from the container (300) and mix it with high-pressure gas to form mist that escapes from the cover (210). A sealing assembly (600) is provided between the atomizing head (200) and the main body (100) to achieve a sealed connection. A pressure cavity (400) is formed inside the main body (100), and a high-pressure air source (500) is provided to supply high-pressure air to the pressure cavity (400). The high-pressure air is supplied to the atomizing head (200) through the pressure cavity (400). Its features are, It also has a transition chamber (410), through which high-pressure air enters the pressure chamber (400).

2. The diffuser according to claim 1, characterized in that, The main body (100) includes an inner cavity (130) and an outer shell (140), the inner cavity (130) being disposed within the outer shell (140), and the container (300) being placed within the inner cavity (130). The sealing assembly (600) is disposed at the upper port edge of the inner cavity (130) to form a seal with the atomizing head (200), and the pressure inner cavity (400) is formed between the container (300) and the inner cavity (130). The high-pressure air source (500) is connected to the transition air chamber (410) through an air supply pipe (510). High-pressure air enters the transition air chamber (410) through the air supply pipe (510) and then enters the pressure chamber (400).

3. The diffuser according to claim 2, characterized in that, The transition chamber (410) is formed around the inner cavity (130), and has an air inlet (411) connected to the air supply pipe (510) and multiple air outlets (412) connected to the inner cavity (130).

4. The diffuser according to claim 3, characterized in that, The plurality of air outlets (412) are slit-shaped and extend vertically downward from the upper port of the inner cavity (130), with their lower ends maintaining a certain distance from the bottom of the transition air chamber (410).

5. The diffuser according to any one of claims 2-4, characterized in that, The sealing assembly (600) includes an outer sealing ring (610) sleeved on the outer side of the upper port of the inner cavity (130) and an inner sealing ring (620) embedded in the inner side of the upper port of the inner cavity (130). The upper surfaces of the outer sealing ring (610) and the inner sealing ring (620) are connected as a whole by the connecting ring surface (630).

6. The diffuser according to claim 5, characterized in that, The connecting ring surface (630) extends outward beyond the outer sealing ring (610) to form a pressing ring surface (640).

7. The diffuser according to claim 6, characterized in that, The pressing ring surface (640) is clamped and fixed by the main body (100), and a friction surface (641) is provided between the main body (100) and the pressing ring surface (640).

8. The diffuser according to claim 5, characterized in that, A transition arc surface (631) is provided on the connecting ring surface (630) at the transition part to the inner sealing ring (620), and the height of the outer sealing ring (610) is greater than that of the inner sealing ring (620).

9. The diffuser according to claim 5, characterized in that, The inner sealing ring (620) extends inward in a stepped shape.

10. The diffuser according to claim 5, characterized in that, The atomizing head (200) is provided with a pressing step (221) at the position corresponding to the inner sealing ring (620) to press down on the inner sealing ring (620).

11. The diffuser according to claim 5, characterized in that, The atomizing head (200) has at least a conical surface (222) at its lower part that abuts against the inner edge of the inner sealing ring (620).

Images