Negative oxygen ion generator

Abstract

The utility model provides a negative oxygen ion generator which comprises a draught fan arranged in a shell, an air inlet of the draught fan is communicated with an air inlet of the shell, and an air outlet of the draught fan is communicated with an air outlet of the shell to form an air outlet channel. The negative oxygen ion generation module is used for generating negative oxygen ions in the air outlet channel; the air outlet channel comprises a first air channel section and a second air channel section which are sequentially arranged in the air outlet direction, a preset angle is formed between the side wall of one side of the first air channel section and the air outlet direction of the fan, and the air outlet channel is guided to the middle of the shell from one side of the shell through the first air channel section; the second air duct section is in a cone shape with the outer contour gradually increasing in the air outlet direction. The arrangement of the first air duct section and the second air duct section in the negative oxygen ion generator can greatly reduce the noise intensity, so that the negative oxygen ions carried by wind are uniformly diffused to all places in a room from 360 degrees, and the negative oxygen ion generator can uniformly purify the indoor environment; the effects of relieving body symptoms and enhancing body functions can be achieved at all indoor positions.

Description

Technical Field

[0001] This utility model relates to the field of health appliances, and in particular to a negative oxygen ion generator. Background Technology

[0002] Negative ion generators produce negative ions that can purify the air and simulate the air quality rich in negative ions found in natural environments such as forests and beaches. They can also alleviate symptoms and enhance the function of the user's respiratory, cardiovascular, and nervous systems, improving comfort and well-being. However, some technical problems still need to be addressed in their practical application.

[0003] One significant drawback of negative ion generators is excessive noise. To blow out air containing negative ions and spread it over a wide area, the internal fan of the generator operates at a relatively high speed, often generating considerable noise. Furthermore, improper placement or shape of other components of the generator (such as the air outlet duct) can also increase noise levels.

[0004] Uniformity of airflow is also a significant issue. The airflow from a negative ion generator carries negative ions and diffuses them in all directions within the room. Uniformity of airflow determines whether negative ions can diffuse evenly, thus uniformly purifying the indoor environment and preventing situations where the concentration of negative ions is higher in one direction than in others. Since negative ions are invisible, and users inevitably move around in various parts of the room, areas with lower concentrations of negative ions are unlikely to effectively alleviate symptoms or enhance bodily functions. Utility Model Content

[0005] This manual provides a negative ion generator to solve the problems of high noise intensity and uneven air output when negative ion generators are running.

[0006] This specification provides a negative ion generator, comprising: a housing having an air inlet and an air outlet; a fan disposed within the housing, the air inlet of the fan being connected to the air inlet of the housing, and the air outlet of the fan being connected to the air outlet of the housing to form an air outlet channel; a negative ion generating module for generating negative ions in the air outlet channel; the air outlet channel includes a first air duct section and a second air duct section arranged sequentially along the air outlet direction, one side wall of the first air duct section being set at a preset angle to the air outlet direction of the fan, the first air duct section guiding the air outlet channel from one side of the housing to the middle of the housing; the second air duct section being a cone shape with an outer contour that gradually increases along the air outlet direction.

[0007] In some embodiments, the housing includes a first surface, a conical recess is formed in the middle of the first surface, and the conical recess is disposed inside the second air duct section to form an annular air duct.

[0008] In some embodiments, the starting point of the first air duct section is the air outlet of the fan, and the ending point is the tip of the conical recess, and the tip of the conical recess is the starting point of the second air duct section.

[0009] In some embodiments, any cross-sectional area of ​​the first duct section is larger than the cross-sectional area of ​​the fan outlet.

[0010] In some embodiments, the cross-section at the junction of the first duct section and the second duct section matches the shape of the fan outlet.

[0011] In some embodiments, the cross-section at the junction of the first air duct section and the second air duct section is circular or rectangular.

[0012] In some embodiments, the negative ion generating module is embedded in the side wall of the air outlet channel; and / or, the negative ion generating module includes a through hole, the discharge end of the negative ion is disposed in the through hole, and the through hole on the negative ion generating module forms a section of the air outlet channel along the airflow direction.

[0013] In some embodiments, an arc-shaped grid is provided on the first surface as an air outlet of the housing, and an air guide strip is provided next to the arc-shaped grid.

[0014] In some embodiments, the air guide strip is flared outward relative to the center of the first surface.

[0015] In some embodiments, the conical recess is used to provide a fragrance substance.

[0016] In some embodiments, the conical recess is provided with a fragrance receiving cavity for containing fragrance substances, and the fragrance receiving cavity is in communication with the air outlet channel and / or the outside of the housing.

[0017] In some embodiments, the fragrance-containing cavity includes a first sub-cavity and a second sub-cavity. The first sub-cavity is connected to the air outlet channel through a first hole, and the second sub-cavity is connected to the air outlet channel or the outside of the housing through a second hole. The first sub-cavity and the second sub-cavity are connected through a third hole. The fragrance substance may be disposed in the first sub-cavity and / or the second sub-cavity.

[0018] In some embodiments, the air flowing into the first sub-cavity from the first hole changes its flow direction and enters the second sub-cavity, and then flows out from the second sub-cavity.

[0019] In some embodiments, the first sub-cavity extends from the tip of the conical recess toward the outside of the housing, and the first hole is formed at the tip of the conical recess; the second sub-cavity is disposed around the first sub-cavity.

[0020] In some embodiments, the fragrance housing for forming the fragrance containment cavity is detachably connected to the first surface of the ion generator housing, the shape of the fragrance housing matches the conical recess on the first surface, and the fragrance housing has holes that match the first surface.

[0021] In some embodiments, a fragrance housing for forming a fragrance receiving cavity is provided with a fragrance adjusting cover, the overlapping area of ​​the fragrance adjusting cover and the holes on the fragrance housing being adjustable.

[0022] In some embodiments, the housing of the negative ion generator includes: an inner shell for fixing the fan, the negative ion generating module, and forming the air outlet channel; and an outer shell, which is fitted over the inner shell as the product housing.

[0023] The negative ion generator provided in this manual has an air outlet that connects the air outlet of the fan to the air outlet of the housing to form an air outlet channel. The air outlet channel includes a first air duct section and a second air duct section arranged sequentially along the air outlet direction. One side wall of the first air duct section is set at a preset angle to the air outlet direction of the fan to form a windward surface. The first air duct section guides the air outlet channel from one side of the housing to the middle of the housing. The second air duct section is a cone shape that gradually increases in size along the outer contour of the air outlet direction. The cone-shaped second air duct section also forms an inclined windward surface in the air outlet direction. The arrangement of the first and second air duct sections extends the length of the air outlet and increases the number of sound wave reflections. Through multiple sound wave reflections, noise energy loss is increased, thereby reducing noise intensity. This also gradually slows down the airflow speed and reduces the air pressure at the outlet of the negative ion generator, further reducing noise intensity. Furthermore, the airflow carries negative ions and diffuses them evenly throughout the room from 360°, preventing a situation where the concentration of negative ions is higher in one direction and lower in others. This allows the negative ion generator to evenly purify the indoor environment, achieving the effect of relieving physical symptoms and enhancing bodily functions in all parts of the room.

[0024] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0025] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of this invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, under the guidance of this invention, can select various possible shapes and proportions to implement this invention according to specific circumstances.

[0026] Figure 1 An external schematic diagram of the negative oxygen ion generator provided by this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of a negative oxygen ion generator.

[0028] Figure 3 A schematic diagram of the air outlet channel of a negative oxygen ion generator;

[0029] Figure 4 Another schematic diagram of the air outlet channel of a negative oxygen ion generator;

[0030] Figure 5 A three-dimensional schematic diagram of an air outlet channel for a negative oxygen ion generator;

[0031] Figure 6 A three-dimensional cross-sectional view of an air outlet channel of a negative oxygen ion generator;

[0032] Figure 7 A three-dimensional schematic diagram of another air outlet channel for a negative oxygen ion generator;

[0033] Figure 8 A three-dimensional cross-sectional view of another air outlet channel of the negative oxygen ion generator;

[0034] Figure 9 A three-dimensional schematic diagram of a fragrance-containing chamber with a fragrance-adjusting cap;

[0035] Figure 10 A cross-sectional view of the fragrance-receiving cavity with a fragrance-adjusting cap;

[0036] Figure 11 This is a three-dimensional schematic diagram of a fragrance-containing cavity without a fragrance adjustment cover.

[0037] The reference numerals in the above figures are as follows:

[0038] Housing 10, air inlet A of the housing, air outlet B of the housing, inner housing 11, outer housing 12; fan 20, air inlet C of the fan, air outlet D of the fan; negative oxygen ion generating module 30; air outlet channel 40, first air duct section 41, second air duct section 42; first surface E, conical recess F, air guide strip G; fragrance receiving cavity Q, first hole Q1, second hole Q2, first sub-cavity Q3, second sub-cavity Q4, fragrance housing 50, third hole Q5, fragrance adjusting cover 60. Detailed Implementation

[0039] The details of this utility model can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of this utility model described herein are only for explaining the purpose of this utility model and should not be construed as limiting this utility model in any way. Under the teachings of this utility model, those skilled in the art can conceive of any possible modifications based on this utility model, and these should all be considered to fall within the scope of this utility model. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, it can be a mechanical connection or an electrical connection, or it can be a connection within two elements, which can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0040] 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 to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0041] In order to solve the problems of excessive noise and uneven air output of negative ion generators during operation, this manual provides a negative ion generator, including a housing 10, a fan 20 disposed in the housing, and a negative ion generating module 30.

[0042] The housing 10 has an air inlet A and an air outlet B. Figure 1 This is a schematic diagram of the appearance of a negative ion generator product. Figure 2This is a schematic diagram of the internal structure of a negative ion generator product. The housing 10 may include an inner shell 11, which is used to fix the fan 20, the negative ion generator 30, and to form the air outlet duct 40. The shape of the inner shell 11 may include an irregularly shaped bracket, duct walls, and some fasteners. The inner shell 11 is usually not aesthetically pleasing; to make the negative ion generator product more attractive, the housing 10 may also include an outer shell 12, which is fitted over the inner shell 11 as the product's outer casing. Figure 1 In the middle, 12 is the outer shell, and the collection of components outside the outer shell 12 that serve to fix and form an air outlet channel can be used as the inner shell 11.

[0043] The air outlet B of the housing 10 can be set at the top of the housing 10, and the air inlet A can be set at the bottom of the housing 10. This allows the air outlet to be higher than the ground, so that more negative oxygen ions are distributed in the area at the height of the person's head; at the same time, it avoids the air outlet from stirring up dust at lower levels.

[0044] Fan 20 can be a centrifugal fan. Centrifugal fan impellers are typically backward-curved or forward-curved, resulting in relatively smooth and orderly airflow within the impeller, leading to lower noise compared to axial fans. Axial fan impellers, on the other hand, direct airflow axially, causing more complex flow within the blade channels, easily generating turbulence and vortices, thus resulting in greater noise. The impeller design of centrifugal fans better guides airflow, reducing turbulence and conflict, thereby lowering noise levels. Furthermore, under normal circumstances, for the same airflow demand, centrifugal fans operate at relatively lower speeds. Lower speeds generally result in lower mechanical and aerodynamic noise during operation. For example, to achieve the same airflow, centrifugal fans can operate at lower speeds, thus reducing noise levels; while axial fans often require higher speeds to achieve larger airflows, leading to increased noise.

[0045] Centrifugal fans typically have better sound insulation and noise reduction properties, effectively blocking and absorbing noise generated inside the fan, thus significantly reducing noise propagation. Axial fans, on the other hand, have a relatively simpler duct design, and their noise suppression effect is far less significant than that of centrifugal fans. Regarding mechanical vibration, centrifugal fans generally have better impeller and shaft balance, resulting in less mechanical vibration during operation and thus reducing vibration-induced noise. Axial fans, due to their structural characteristics, may generate greater mechanical vibration during operation, thereby increasing noise to some extent.

[0046] The air inlet C of the fan 20 is connected to the air inlet A of the housing 10, and the air outlet D of the fan 20 is connected to the air outlet B of the housing 10 to form an air outlet channel 40. In other words, the air outlet channel 40 refers to the air duct between the air outlet D of the fan 20 and the air outlet B of the housing 10.

[0047] The negative oxygen ion generating module 30 is used to generate negative oxygen ions in the air outlet duct 40.

[0048] In some embodiments, the negative ion generating module 30 is embedded in the side wall of the air outlet duct 40. For example... Figure 3 and Figure 4 As shown, the negative oxygen ion generating module 30 is located on one side of the air outlet channel 40, and the negative oxygen ion releasing end (e.g., a discharge needle) is connected to the air outlet channel 40 to release negative oxygen ions into the air outlet channel 40.

[0049] In other embodiments, the negative ion generating module 30 includes a through hole, in which the discharge end of the negative ion is disposed, and the through hole on the negative ion generating module 30 forms an air outlet channel along the airflow direction. For example, the negative ion generating module 30 can be integrally tubular, embedded in the air outlet channel 40 to form an air outlet channel 40, and the discharge end of the negative ion (e.g., a discharge needle) is disposed on the inner wall of the tubular negative ion generating module 30.

[0050] One or more negative ion generating modules 30 can be installed on the negative ion generator. When multiple negative ion generating modules 30 are installed, these negative ion generating modules 30 can adopt one of the above-mentioned settings, two of the above-mentioned settings, or other settings.

[0051] The air outlet duct 40 includes a first air duct section 41 and a second air duct section 42 arranged sequentially along the air outlet direction.

[0052] One side wall of the first air duct section 41 is set at a preset angle to the air outlet direction of the fan 20. The outer contour of the negative ion generator housing 10 can be cylindrical, while the fan 20 is usually "b" shaped. The air outlet of the fan 20 is located on one side of the cylindrical housing 10, which makes the appearance of the negative ion generator simple and beautiful, while maximizing the use of the internal space of the housing 10 and reducing the volume of the negative ion generator.

[0053] The preset angle can be between 15° and 45°, and the specific angle can be determined based on the outer contour radius and height of the outer shell 10 of the negative ion generator. This preset angle setting causes one side wall of the first air duct section 41 to form an inclined windward surface.

[0054] The inclined windward surface will reflect sound waves to a certain extent and can also extend the length of the first air duct section 41, thereby increasing the number of sound wave reflections. The more sound waves are reflected, the more energy is lost, and the lower the energy reaches the air outlet B of the casing 10, thus reducing the noise intensity.

[0055] The first air duct section 41 guides the air outlet channel 40 from one side of the housing 10 to the middle of the housing 10. This arrangement extends the length of the air outlet channel 40, increases the number of sound wave reflections, and also helps to maximize the use of the internal space of the housing 10 while making the negative ion generator's appearance simple and beautiful, thus reducing the size of the negative ion generator. By guiding the air outlet channel 40 from one side of the housing 10 to the middle of the housing 10, it is also possible to design the second air duct section 42 into a conical structure that facilitates uniform airflow.

[0056] The second air duct section 42 is a cone shape with its outer contour gradually increasing along the air outlet direction. This cone shape can be a regular cone, a frustum of a cone, a pyramid, or a truncated pyramid. The cross-sectional area of ​​these cones can be a solid closed shape or a hollow closed shape, such as a ring. The gradual increase in the outer contour along the air outlet direction means that the tip of the cone-shaped second air duct section 42 points in the opposite direction to the air outlet. That is, when the second air duct section 42 outlets air upwards, the tip of the cone-shaped second air duct section 42 points downwards.

[0057] The conical second air duct section 42 also forms an inclined windward surface in the air outlet direction, which can further extend the length of the air outlet channel 40, increase the number of sound wave reflections, and thus reduce noise intensity. The conical shape of the second air duct section 42 can also gradually slow down the airflow speed and gradually reduce the air pressure, thereby gradually reducing the noise intensity. Combined with the increased number of reflections due to the extended air outlet channel 40, the noise of the negative ion generator is significantly reduced.

[0058] The second air duct section 42 is a cone shape with an outer contour that gradually increases in size along the air outlet direction. This cone shape can be rotationally symmetrical, that is, the cone shape can coincide with itself after rotating around its axis by a certain angle. This rotation angle is an integer part of 360°, such as 90°, 120°, 180°, etc.

[0059] The second air duct section 42 is a cone shape that gradually increases in size along the outer contour of the air outlet direction. It can also make the air carry negative oxygen ions and diffuse them evenly from 360° to all parts of the room, avoiding the situation where the concentration of negative oxygen ions is high in one direction and low in other directions. This allows the negative oxygen ion generator to purify the indoor environment evenly, so that it can relieve physical symptoms and enhance physical functions in all parts of the room.

[0060] The negative ion generator provided in this manual has an air outlet that connects the air outlet of the fan to the air outlet of the housing to form an air outlet channel. The air outlet channel includes a first air duct section and a second air duct section arranged sequentially along the air outlet direction. One side wall of the first air duct section is set at a preset angle to the air outlet direction of the fan to form a windward surface. The first air duct section guides the air outlet channel from one side of the housing to the middle of the housing. The second air duct section is a cone shape that gradually increases in size along the outer contour of the air outlet direction. The cone-shaped second air duct section also forms an inclined windward surface in the air outlet direction. The arrangement of the first and second air duct sections extends the length of the air outlet and increases the number of sound wave reflections. Through multiple sound wave reflections, noise energy loss is increased, thereby reducing noise intensity. This also gradually slows down the airflow speed and reduces the air pressure at the outlet of the negative ion generator, further reducing noise intensity. Furthermore, the airflow carries negative ions and diffuses them evenly throughout the room from 360°, preventing a situation where the concentration of negative ions is higher in one direction and lower in others. This allows the negative ion generator to evenly purify the indoor environment, achieving the effect of relieving physical symptoms and enhancing bodily functions in all parts of the room.

[0061] The housing 10 of the negative ion generator includes a first surface E located at the outlet of the air outlet duct 40. Multiple air outlet holes or air outlet grilles can be provided on the first surface E. The first surface E can be planar, thus the second air duct section 42 is a solid cone with an outer contour that gradually increases in size along the air outlet direction.

[0062] In some embodiments, a conical recess F is formed in the middle of the first surface E, and the conical recess F is disposed inside the second air duct section 42 to form an annular air duct. That is, the second air duct section 42 can be a trumpet shape with a gradually increasing outer contour along the air outlet direction. Figure 3 and Figure 4 This illustrates the case where a conical recess is formed on the first surface.

[0063] By setting a conical recess F in the middle of the first surface E to cut the second air duct section 42 into a trumpet-shaped air duct with an outer contour that gradually increases along the air outlet direction, the airflow in the second air duct section 42 can smoothly transition to the air outlet of the housing 10, thereby reducing aerodynamic noise caused by airflow turbulence; it can also distribute the air carrying negative oxygen ions evenly in 360°, avoiding the situation where the wind speed in one direction is too high or too low, thereby making the air supply effect and the diffusion of negative oxygen ion concentration more uniform.

[0064] When the first surface E of the housing 10 has a conical recess F in the middle, the starting point of the first air duct section 41 is the air outlet D of the fan 20, and the ending point is the tip of the conical recess F; the tip of the conical recess F is the starting point of the second air duct section 42. The ending point of the first air duct section 41 and the starting point of the second air duct section 42 can also be a position near the tip of the conical recess F facing the first air duct section 41.

[0065] The cross-sectional area of ​​any section 41 of the first air duct can be greater than or equal to the cross-sectional area of ​​the air outlet D of the fan 20.

[0066] In some embodiments, the cross-sectional area of ​​any section 41 of the first air duct is greater than the cross-sectional area of ​​the outlet D of the fan 20. This arrangement allows the airflow channel to enlarge and the airflow velocity to decrease after the air is blown out of the outlet D of the fan 20, thereby reducing noise.

[0067] The cross-sectional area of ​​each part of the first air duct section 41 can be the same, or the cross-sectional area can gradually increase along the air outlet direction.

[0068] The cross-section at the junction of the first air duct section 41 and the second air duct section 42 matches the shape of the air outlet D of the fan 20. Matching shapes can be identical or different, but one shape facilitates the transition to the other.

[0069] For example, the air outlet D of the fan 20 is rectangular, and the cross-section at the junction of the first air duct section 41 and the second air duct section 42 is also rectangular. Rectangles include squares. Figure 5 and Figure 6 The diagram shows the case where the cross-section at the junction of the first air duct section 41 and the second air duct section 42 is rectangular.

[0070] For example, the air outlet D of the fan 20 is a square or a near-square rectangle, and the cross-section at the junction of the first air duct section 41 and the second air duct section 42 can also be circular. Figure 7 and Figure 8 The diagram shows a case where the cross-section at the junction of the first air duct section 41 and the second air duct section 42 is circular. Transforming a "square or near-square rectangular air duct cross-section" into a "circular cross-section" is easier and less difficult.

[0071] In some embodiments, an arc-shaped grid is provided on the first surface E as the air outlet B of the housing 10, and an air guide strip G is provided next to the arc-shaped grid. The arc-shaped grids can be arranged in a concentric pattern (e.g., concentric circles, concentric ellipses, concentric rounded rectangles, etc.). Figure 2 and Figure 3 As shown.

[0072] The two sides of the air guide strip G can be parallel to the air outlet B of the housing 10, meaning that the air at the air outlet B of the housing 10 flows out into the air along the original direction. By setting the two sides of the air guide strip G to be parallel to the air outlet direction, the frontal area can be reduced, turbulence at the air outlet can be avoided, and wind noise can be reduced.

[0073] In some embodiments, the air guide strip G expands outward relative to the center of the first surface, meaning that the two side surfaces of the air guide strip G gradually move away from the center area of ​​the first surface along the air outlet direction. By setting the air guide strip to gradually expand outward along the air outlet direction, the air blown out of the air outlet duct 40 can carry negative oxygen ions and diffuse to a larger area of ​​the room.

[0074] In some embodiments, the conical recess F is used to dispose of a fragrance substance. For example, the fragrance substance can be disposed on the outer surface of the first surface E and at the bottom of the conical recess F.

[0075] The cone-shaped recess F containing the fragrance substance can be open, allowing the fragrance molecules to diffuse freely into the room; at the same time, the gas blown out by the air outlet duct 40 will also carry some fragrance molecules to diffuse further into the room.

[0076] In some embodiments, the conical recess F is provided with a fragrance receiving cavity Q for containing fragrance substances, which communicates with the air outlet duct 40 and / or the outside of the housing 10.

[0077] The fragrance-containing cavity Q can be formed integrally with the first surface E of the housing 10, or it can be formed by the first surface E of the housing 10 and the fragrance housing 50 being joined together. Figure 3 , Figure 9 , Figure 10 , Figure 11 As shown.

[0078] The fragrance-containing cavity Q may include a first opening Q1 for air inlet and a second opening Q2 for air outlet, wherein the first opening Q1 may communicate with the air outlet channel 40. Specifically, the first opening Q1 may be located at the tip of the conical recess F (e.g., Figure 11 As shown), it can also be set on the sidewall of the conical recess F. The second hole Q2 can be set on the sidewall of the conical recess F, or it can be set on the surface opposite to the tip of the conical recess F (as shown). Figure 11 (As shown). The two possible positions of the first hole Q1 can be combined with the two possible positions of the second hole Q2. When both the first hole Q1 and the second hole Q2 are connected to the air outlet duct 40, the second hole Q2 can be located downstream of the air outlet duct of the first hole Q1.

[0079] In some embodiments, the fragrance-containing cavity Q may include a first sub-cavity Q3 and a second sub-cavity Q4. The first sub-cavity Q3 is connected to the air outlet channel 40 through a first hole Q1, and the second sub-cavity Q4 is connected to the air outlet channel 40 or the outside of the housing 10 through a second hole Q2. The first sub-cavity Q3 and the second sub-cavity Q4 are connected through a third hole Q5. Fragrance substances may be disposed in the first sub-cavity Q3 and / or the second sub-cavity Q4. Figure 9 , Figure 10 and Figure 11 As shown.

[0080] The airflow from the first opening Q1 into the first sub-cavity Q3 changes direction and enters the second sub-cavity Q4, then exits from the second sub-cavity. In some embodiments, the airflow from the first opening Q1, such as the first sub-cavity Q3, changes direction by at least 90° before entering the second sub-cavity Q4.

[0081] The area of ​​the first hole Q1 should not be set too large, as a large area can easily create turbulence, thus increasing the operating noise of the negative ion generator. The first hole Q1 can divert some air carrying negative ions from the air outlet 40. This air, after passing over the surface of the fragrance material in the first sub-cavity Q3 or the second sub-cavity Q4, carries fragrance molecules and flows out through the second hole Q2. Since the second hole Q2 is connected to the air outlet 40 or the outside of the housing 10, the gas carrying fragrance molecules can diffuse throughout the room with the air flowing out of the air outlet B of the housing 10. Users can estimate the concentration of negative ions by sensing the concentration of fragrance in different parts of the room, improving the user experience. Furthermore, the fragrance-containing cavity Q can hold fragrance materials that simulate various scenes, such as those mimicking forest or park scenes, allowing users to experience the feeling of being in a specific scene indoors, further enhancing the user experience.

[0082] Because the area through the first hole Q1 is small, the airflow into the fragrance-containing cavity Q is slow and the air volume is small. Therefore, changing the airflow direction by 90° will not generate significant noise. By setting the airflow direction to change by 90° before entering the second sub-cavity Q4, turbulence can be formed in the first sub-cavity Q3 and the second sub-cavity Q4 near the third hole Q5. This allows the faster and more turbulent airflow to carry away more fragrance molecules, resulting in a richer and more easily perceived fragrance.

[0083] In some embodiments, a first sub-cavity Q3 extends from the tip of the conical recess F toward the outside of the housing 10, and a first hole Q1 is formed at the tip of the conical recess F; a second sub-cavity Q4 is disposed around the first sub-cavity Q3. For example... Figure 9 , Figure 10 and Figure 11 As shown.

[0084] In other embodiments, the second sub-cavity Q4 extends from the tip of the conical recess F toward the outside of the housing 10, the first sub-cavity Q3 is disposed around the second sub-cavity Q4, and the first hole Q1 is opened on the side of the conical recess F.

[0085] At least one of the aforementioned first hole Q1, second hole Q2, and third hole Q5 may include one hole, or may include two or more holes.

[0086] The implementation of dividing the fragrance-containing cavity Q into a first sub-cavity Q3 and a second sub-cavity Q4 is merely an example provided in this specification. The fragrance-containing cavity Q may also have only one cavity, or be divided into three, four, or even more sub-cavities.

[0087] In some embodiments, the fragrance housing 50 for forming the fragrance receiving cavity Q is detachably connected to the first surface E of the ion generator housing 10, the shape of the fragrance housing 50 matches the conical recess F on the first surface E, and the fragrance housing 50 has holes that match the first surface E.

[0088] For example, such as Figure 11 As shown, a hole is provided at the tip of the conical recess F on the first surface E, and an opening is provided at one end of the fragrance housing 50. After the fragrance housing 50 is installed on the first surface E, it forms a first sub-cavity Q3, and the hole at the tip of the conical recess F serves as the first hole Q1.

[0089] In some embodiments, a fragrance housing 50 forming the fragrance receiving cavity Q is provided with a fragrance adjusting cover 60, and the overlapping area between the fragrance adjusting cover 60 and the hole on the fragrance housing 50 can be flexibly adjusted. The non-overlapping area between the fragrance adjusting cover 60 and the second hole Q2 on the fragrance housing 50 is the fragrance outlet. The fragrance adjusting cover 60 can be adjusted by rotation, by sliding, or by other means. Figure 9 and Figure 10 The schematic shape and location of the fragrance control cap are shown.

[0090] By setting the fragrance adjustment cover 60, users can flexibly adjust the size of the fragrance air outlet according to their own needs, thereby personalizing the concentration of their preferred air fragrance.

[0091] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0092] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A negative oxygen ion generator, characterized in that, include: The housing has an air inlet and an air outlet; A fan is installed inside the housing, with its air inlet connected to the air inlet of the housing and its air outlet connected to the air outlet of the housing to form an air outlet channel. A negative oxygen ion generating module is used to generate negative oxygen ions in the air outlet channel; The air outlet channel includes a first air duct section and a second air duct section arranged sequentially along the air outlet direction. One side wall of the first air duct section is set at a preset angle with the air outlet direction of the fan. The first air duct section guides the air outlet channel from one side of the housing to the middle of the housing. The second air duct section is a cone shape with an outer contour that gradually increases along the air outlet direction.

2. The negative oxygen ion generator according to claim 1, characterized in that, The housing includes a first surface, with a conical recess formed in the middle of the first surface. The conical recess is disposed inside the second air duct section to form an annular air duct.

3. The negative oxygen ion generator according to claim 2, characterized in that, The first air duct section starts at the air outlet of the fan and ends at the tip of the conical recess. The tip of the conical recess is the starting point of the second air duct section.

4. The negative oxygen ion generator according to claim 1, characterized in that, Any cross-sectional area of ​​the first air duct section is larger than the cross-sectional area of ​​the fan outlet.

5. The negative oxygen ion generator according to claim 1, characterized in that, The cross-section at the junction of the first and second air duct sections matches the shape of the fan outlet.

6. The negative oxygen ion generator according to claim 5, characterized in that, The cross-section at the junction of the first air duct section and the second air duct section is circular or rectangular.

7. The negative oxygen ion generator according to claim 1, characterized in that, The negative oxygen ion generating module is embedded in the side wall of the air outlet channel; And / or, The negative oxygen ion generating module includes a through hole, and the discharge end of the negative oxygen ion is disposed in the through hole. The through hole on the negative oxygen ion generating module forms an air outlet channel along the airflow direction.

8. The negative oxygen ion generator according to claim 2, characterized in that, An arc-shaped grid is provided on the first surface as the air outlet of the housing, and an air guide strip is provided next to the arc-shaped grid.

9. The negative oxygen ion generator according to claim 8, characterized in that, The air guide strip is flared outward relative to the center of the first surface.

10. The negative oxygen ion generator according to claim 2, characterized in that, The conical recess is used to set fragrance substances.

11. The negative oxygen ion generator according to claim 10, characterized in that, The conical recess is provided with a fragrance-containing cavity for accommodating fragrance substances, and the fragrance-containing cavity is connected to the air outlet channel and / or the outside of the housing.

12. The negative oxygen ion generator according to claim 11, characterized in that, The fragrance-containing cavity includes a first sub-cavity and a second sub-cavity. The first sub-cavity is connected to the air outlet channel through a first hole, and the second sub-cavity is connected to the air outlet channel or the outside of the housing through a second hole. The first sub-cavity and the second sub-cavity are connected through a third hole. The fragrance substance can be disposed in the first sub-cavity and / or the second sub-cavity.

13. The negative oxygen ion generator according to claim 12, characterized in that, The airflow that enters the first sub-cavity from the first hole changes direction and enters the second sub-cavity, and then flows out from the second sub-cavity.

14. The negative oxygen ion generator according to claim 12, characterized in that, The first sub-cavity extends from the tip of the conical recess toward the outside of the housing, and the first hole is opened at the tip of the conical recess; the second sub-cavity is disposed around the first sub-cavity.

15. The negative oxygen ion generator according to claim 11, characterized in that, The fragrance housing used to form the fragrance containment cavity is detachably connected to the first surface of the ion generator housing. The shape of the fragrance housing matches the conical recess on the first surface, and the fragrance housing has holes that match the first surface.

16. The negative oxygen ion generator according to claim 11, characterized in that, The fragrance housing, which forms the fragrance containment cavity, is provided with a fragrance adjustment cover, and the overlapping area between the fragrance adjustment cover and the holes on the fragrance housing is adjustable.

17. The negative oxygen ion generator according to claim 1, characterized in that, The housing of the negative oxygen ion generator includes: The inner shell is used to fix the fan, the negative oxygen ion generating module, and to form the air outlet channel; The outer shell is fitted over the inner shell and serves as the product casing.

Images