阅读说明：本技术 一种负氧离子发生器及负氧离子制备装置 (Negative oxygen ion generator and negative oxygen ion preparation device ) 是由 徐绍宏 尹新华 于 2021-07-08 设计创作，主要内容包括：本发明提供一种负氧离子发生器及负氧离子制备装置,涉及负氧离子制备领域。该负氧离子发生器包括：第一壳体,内部形成用于容纳水的第一容纳腔；进气管,进气管的一端沿第一方向穿过第一壳体并位于第一容纳腔内,进气管的一端能够喷出压缩空气以冲击水,形成负氧离子；出气管,出气管的一端穿过第一壳体并位于第一容纳腔内,用于导出第一容纳腔内的负氧离子；第二壳体,内部形成第二容纳腔,第二容纳腔与第一容纳腔部分重合；进气管的一端位于第二容纳腔与第一容纳腔重合的部分内；其中,第二壳体与第一壳体间隔设置。本发明的负氧离子发生器及负氧离子制备装置能够有效降低环境噪声,提升用户体验。(The invention provides a negative oxygen ion generator and a negative oxygen ion preparation device, and relates to the field of negative oxygen ion preparation. The negative oxygen ion generator includes: a first housing having a first receiving chamber formed therein for receiving water; one end of the air inlet pipe penetrates through the first shell along the first direction and is positioned in the first accommodating cavity, and compressed air can be sprayed out of one end of the air inlet pipe to impact water to form negative oxygen ions; one end of the air outlet pipe penetrates through the first shell, is positioned in the first accommodating cavity and is used for leading out negative oxygen ions in the first accommodating cavity; the second shell forms a second accommodating cavity inside, and the second accommodating cavity is partially overlapped with the first accommodating cavity; one end of the air inlet pipe is positioned in the part of the second accommodating cavity, which is overlapped with the first accommodating cavity; wherein, the second casing sets up with first casing interval. The negative oxygen ion generator and the negative oxygen ion preparation device can effectively reduce environmental noise and improve user experience.)

1. An oxygen anion generator, comprising:

a first housing having a first receiving chamber formed therein for receiving water;

one end of the air inlet pipe penetrates through the first shell along a first direction and is positioned in the first accommodating cavity, and compressed air can be sprayed out of the one end of the air inlet pipe to impact water to form negative oxygen ions;

one end of the air outlet pipe penetrates through the first shell, is positioned in the first accommodating cavity and is used for leading out the negative oxygen ions in the first accommodating cavity;

a second housing having a second accommodating chamber formed therein, the second accommodating chamber partially overlapping the first accommodating chamber; the one end of the air inlet pipe is positioned in a part where the second accommodating cavity and the first accommodating cavity are overlapped; wherein the second housing is spaced apart from the first housing.

2. The oxygen anion generator of claim 1, wherein the second housing comprises an inner housing disposed within the first receiving chamber.

3. The oxygen anion generator of claim 2, wherein said inner housing comprises:

a bottom wall between the one end of the intake pipe and the first housing; and is arranged at intervals with the air inlet pipe and the first shell;

a side wall extending along an edge of the bottom wall toward the other end of the intake pipe and located between the intake pipe and the first housing;

wherein, the through-hole is opened to the diapire and/or the lateral wall.

4. The oxygen anion generator of claim 3, wherein the height of the side wall is greater than a first predetermined value, the first predetermined value being 30 cm.

5. The oxygen anion generator of claim 3, wherein the distance between said through hole and said one end of said outlet tube is greater than 1 cm.

6. The oxygen anion generator of claim 3, wherein said side wall is located between said inlet pipe and said outlet pipe in a direction perpendicular to said first direction.

7. The oxygen anion generator of any of claims 1 to 6, wherein the second housing comprises an outer housing disposed outside the first housing.

8. The oxygen anion generator of claim 7, wherein the outer housing forms an enclosed cavity with the first housing.

9. The oxygen anion generator of claim 1, wherein the first housing is substantially enclosed, and further comprising a stirring member at least partially disposed within the first receiving chamber, the stirring member configured to move water and/or gas within the first receiving chamber.

10. An apparatus for producing negative oxygen ions, comprising:

a gas compression device for generating compressed air;

the oxygen anion generator of any of claims 1 to 9, the other end of the inlet tube being in communication with the gas compression device.

Technical Field

The invention belongs to the field of negative oxygen ion preparation, and particularly relates to a negative oxygen ion generator and a negative oxygen ion preparation device.

Background

The negative oxygen ion generator is a device that can generate negative oxygen ions by air striking water. Negative oxygen ion generator includes casing, intake pipe and outlet duct, and wherein, the casing forms the chamber that holds that is used for holding water, and the intake pipe is used for holding the intracavity with the air is leading-in and forms the impact in order to produce negative oxygen ion to water, and the outlet duct is used for exporting holding the chamber with the negative oxygen ion that produces. But the related negative oxygen ion generator is noisy and the user experience is poor.

Disclosure of Invention

In view of this, the present invention provides an oxygen anion generator and an oxygen anion generating apparatus, so as to solve the technical problem of how to reduce the noise of the oxygen anion generator.

The technical scheme of the invention is realized as follows:

the embodiment of the invention provides a negative oxygen ion generator, which comprises: a first housing having a first receiving chamber formed therein for receiving water; one end of the air inlet pipe penetrates through the first shell along a first direction and is positioned in the first accommodating cavity, and compressed air can be sprayed out of the one end of the air inlet pipe to impact water to form negative oxygen ions; one end of the air outlet pipe penetrates through the first shell, is positioned in the first accommodating cavity and is used for leading out the negative oxygen ions in the first accommodating cavity; a second housing having a second accommodating chamber formed therein, the second accommodating chamber partially overlapping the first accommodating chamber; the one end of the air inlet pipe is positioned in a part where the second accommodating cavity and the first accommodating cavity are overlapped; wherein the second housing is spaced apart from the first housing.

Further, the second housing includes an inner housing disposed within the first receiving cavity.

Further, the inner housing includes: a bottom wall between the one end of the intake pipe and the first housing; and is arranged at intervals with the air inlet pipe and the first shell; a side wall extending along an edge of the bottom wall toward the other end of the intake pipe and located between the intake pipe and the first housing; wherein, the through-hole is opened to the diapire and/or the lateral wall.

Further, the height of the side wall is greater than a first preset value, and the first preset value is 30 cm.

Further, the distance between the through hole and the end of the air outlet pipe is larger than 1 cm.

Further, in a direction perpendicular to the first direction, the side wall is located between the inlet pipe and the outlet pipe.

Further, the second housing includes an outer housing disposed outside the first housing.

Further, a closed cavity is formed between the outer shell and the first shell.

Further, the first housing is substantially closed, and the negative oxygen ion generator further comprises a stirring member at least partially arranged in the first accommodating cavity, wherein the stirring member is used for driving water and/or air in the first accommodating cavity to move.

The present invention also provides a negative oxygen ion production apparatus, comprising: a gas compression device for generating compressed air; the negative oxygen ion generator of any one of the above, wherein the other end of the air inlet pipe is communicated with the gas compression device.

The negative oxygen ion generator comprises a first shell, an air inlet pipe, an air outlet pipe and a second shell, wherein the first shell and the second shell are arranged at intervals, a first accommodating cavity and a second accommodating cavity are respectively enclosed by the first shell and the second shell, the second accommodating cavity is partially overlapped with the first accommodating cavity, and one end of the air inlet pipe is located in the second accommodating cavity. According to the invention, the air inlet pipe is arranged in the cavity of the overlapped part, so that noise generated by the air flow sprayed from the air inlet pipe impacting water can be finally transmitted to the external environment only through the two layers of shells and the space between the two layers of shells, and the noise is gradually attenuated after being transmitted step by step, thereby effectively reducing the decibel number of the noise, reducing the environmental noise and improving the user experience.

Drawings

FIG. 1 is a front view of a negative oxygen ion production apparatus according to an embodiment of the present invention;

FIG. 2 is a sectional view of an oxygen anion generator according to an embodiment of the present invention;

FIG. 3 is a sectional view of another negative oxygen ion generator according to an embodiment of the present invention;

FIG. 4 is a sectional view of another oxygen anion generator according to an embodiment of the present invention;

FIG. 5 is a sectional view of another oxygen anion generator according to the embodiment of the present invention;

FIG. 6 is a sectional view of another oxygen anion generator according to an embodiment of the present invention;

fig. 7 is a sectional view of another oxygen anion generator according to an embodiment of the present invention.

Description of reference numerals:

1. a negative oxygen ion production device; 10. a negative oxygen ion generator; 11. an air inlet pipe; 111. one end of the air inlet pipe; 112. the other end of the air inlet pipe; 12. a first housing; 12A, a first accommodating cavity; 13. an air outlet pipe; 14. a second housing; 14A and a second accommodating cavity; 14B, a cavity; 141. an inner housing; 1411. a bottom wall; 1412. a side wall; 1413. a through hole; 142. an outer housing; 15. a baffle plate; 16. a stirring member; 20. a gas compression device; H. the height of the side walls.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The individual features described in the embodiments can be combined in any suitable manner without departing from the scope, for example different embodiments and aspects can be formed by combining different features. In order to avoid unnecessary repetition, various possible combinations of the specific features of the invention will not be described further.

In the following description, the term "first/second/so" is used merely to distinguish different objects and does not mean that there is a common or relationship between the objects. It should be understood that the description of the "upper", "lower", "outer" and "inner" directions as related to the orientation in the normal use state, and the "left" and "right" directions indicate the left and right directions indicated in the corresponding schematic drawings, and may or may not be the left and right directions in the normal use state.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. The term "coupled", where not otherwise specified, includes both direct and indirect connections.

The invention provides a negative oxygen ion generator and a negative oxygen ion preparation device, which can be used for generating negative oxygen ions for medical treatment and/or health care. It should be noted that the type of application scenario of the present invention does not limit the structure of the negative oxygen ion generator and the negative oxygen ion production apparatus of the present invention.

In an embodiment of the present invention, as shown in fig. 1, the negative oxygen ion production apparatus 1 may include a negative oxygen ion generator 10 and a gas compression device 20. The gas compression device 20 is a device for converting mechanical energy into gas pressure energy, and is used for generating compressed air. Illustratively, the gas compressing device 20 may be an air compressor, which may be of a single cylinder type or a dual cylinder type. The negative oxygen ion generator 10 may include an air inlet pipe 11, and the air inlet pipe 11 may be communicated with the gas compression device 20, so that the compressed air generated by the gas compression device 20 may be delivered into the negative oxygen ion generator 10 through the air inlet pipe 11.

As shown in fig. 2, the negative oxygen ion generator 10 may further include a first housing 12, an outlet duct 13, and a second housing 14. Wherein the first housing 12 internally forms a first receiving chamber 12A for receiving water. Specifically, the first housing 12 may be a substantially thin-walled member to reduce the weight of the structure of the negative oxygen ion generator 10, and the structure and shape of the first housing 12 may be set according to actual needs, and the cross-sectional shape thereof may be substantially rectangular, substantially circular, or elliptical, and the cross-sectional shape may be a plane perpendicular to the height direction (the vertical direction as shown in fig. 2) of the first housing 12. The first housing 12 encloses a first accommodating chamber 12A for accommodating water. One end 111 of the intake pipe 11 passes through the first housing 12 in the first direction and is located in the first accommodation chamber 12A. Specifically, the intake pipe 11 has opposite ends, one end 111 being an outlet end of the compressed air, and the other end 112 being an inlet end of the compressed air. The first direction is an insertion direction of the one end 111 of the intake pipe 11, and for example, the one end 111 of the intake pipe may be inserted into the first housing chamber 12A in the up-down direction shown in fig. 2, may be inserted into the first housing chamber 12A in the left-right direction shown in fig. 2, or may be inserted into the first housing chamber 12A obliquely. Illustratively, one end 111 of the air inlet pipe is inserted into the first accommodating chamber 12A in the up-down direction as shown in fig. 2 for convenience of description. The length of the one end 111 of the air inlet pipe extending into the first accommodating cavity 12A can be set according to actual needs, for example, the one end 111 of the air inlet pipe can extend into water, and can also be located on the water surface and keep a certain distance from the water surface.

As shown in fig. 2, one end 111 of the intake pipe can eject compressed air to impact water, forming negative oxygen ions. Specifically, the compressed air generated by the gas compression device 20 may be ejected from one end 111 of the intake pipe, and since the compressed air has a high pressure and velocity, the air flow ejected at a high speed strongly collides against water, thereby generating negative oxygen ions. The negative oxygen ions are a general name of a single gas molecule with negative charges and a hydrogen ion group, have the effects of promoting human metabolism, enhancing immunity, resisting oxidation, preventing aging, eliminating body free radicals, calming and the like, and can accelerate wound healing and early recover after a patient inhales high-concentration ecological negative oxygen ions (more than 1 ten thousand per cm & lt 3 & gt) of air, purify indoor air, kill viruses and bacteria and be beneficial to body health.

Alternatively, as shown in fig. 2, the baffle 15 may be disposed at an interval at one end 111 of the intake pipe 11. The air flow coming out from one end 111 of the air inlet pipe can quickly impact the baffle 15, and the impact water power of the air flow is improved through the blocking effect of the baffle 15, so that high-concentration and high-activity micromolecular negative oxygen ions are generated.

Optionally, as shown in fig. 2, the anion generator 10 further comprises a stirring member 16. Specifically, stirring member 16 is disposed at least partially within first receiving cavity 12A, that is, stirring member 16 may be disposed entirely within first receiving cavity 12A or only partially within receiving cavity 12A. Illustratively, the stirring member 16 is partially disposed in the first accommodating cavity 12A, and the other portion is located outside the first accommodating cavity 12A and connected to a motor, and the stirring member 16 is driven to rotate by the rotation of the motor, and the motor may have a fixed rotation speed or an adjustable rotation speed during the operation. Stirring member 16 stretches into aquatic, and its one end can set up the paddle, and the rotation of stirring member 16 can form the disturbance to water and gas, and the paddle can strengthen the cutting effect to rivers, is favorable to producing more negative oxygen ions like this, further improves the concentration of negative oxygen ion.

As shown in fig. 2, one end of the outlet pipe 13 passes through the first housing 12 and is located in the first accommodating chamber 12A for guiding out the negative oxygen ions in the first accommodating chamber 12A. Specifically, one end of the outlet pipe 13 extends into the first accommodating chamber 12A, and is located above the water surface, and is spaced from the water surface by a certain distance. Due to the density difference, the negative oxygen ions generated in the first accommodating chamber 12A gradually float out of the water and rise, and at least part of the negative oxygen ions can be discharged out of the first accommodating chamber 12A through the outlet pipe 13. Alternatively, the negative oxygen ions may be discharged directly into the external environment to increase the concentration of negative oxygen ions in the environment, such as to purify the air. The other end of the air outlet pipe 13 can also be connected with a breathing mask, and a user can wear the breathing mask, so that negative oxygen ions coming out from the other end of the air outlet pipe 13 can be directly inhaled by the user through the breathing mask, and the aim of recuperation is achieved.

As shown in fig. 2, a second housing chamber 14A is formed inside the second housing 14, and the second housing chamber 14A partially overlaps the first housing chamber 12A. Specifically, the second housing 14 encloses a second accommodating cavity 14A, and the second accommodating cavity 14A may be a cavity with one open end, or a cavity with both open ends. The second housing 14 is spaced apart from the first housing 12, that is, there is a space between the first housing 12 and the second housing 14, and there may be no other component in the space, or there may be another component in the space, for example, the space may be a vacuum, the space may be filled with water, and the space may be filled with another liquid or sound deadening cotton. The relative positions of the first housing 12 and the second housing 14 can be flexibly set, and the first housing 12 can be arranged around the second housing 14, so that the second accommodating cavity 14A is at least partially positioned in the first accommodating cavity 12A; it is also possible that the second housing 14 is arranged around the first housing 12, and then the first receiving chamber 12A is at least partially located within the second receiving chamber 14A. That is, regardless of how the first housing 12 and the second housing 14 are arranged, the first accommodation chamber 12A and the second accommodation chamber 14A are always partially overlapped.

As shown in fig. 2, one end 111 of the intake pipe 11 is located in a portion where the second accommodating chamber 14A coincides with the first accommodating chamber 12A. Specifically, one end 111 of the intake pipe 11 is always located inside the overlapped portion of the cavity. It can be understood that, during the process of the air flow jetted from the end 111 of the air inlet pipe 11 impacting water, the process is violent, and inevitably generates large noise, which affects the user experience. By arranging two layers of shells at intervals and arranging one end 111 of the air inlet pipe in the cavity of the overlapped part, noise generated when air flow sprayed out of one end 111 of the air inlet pipe 11 hits water can be transmitted to the external environment only by penetrating through the two layers of shells. Taking the case where the first housing 12 is disposed around the second housing 14 as an example, the noise may first pass through the second housing 14, then enter the space between the first housing 12 and the second housing 14, and finally pass through the first housing 12 from the space to the external environment. Compared with the case that only one layer of shell is arranged, the source noise is transmitted through the two layers of shells and the space between the two layers of shells, so that the source noise can be effectively attenuated gradually, the decibel number of the noise is effectively reduced, the environmental noise is reduced, and the user experience is improved.

The negative oxygen ion generator comprises a first shell, an air inlet pipe, an air outlet pipe and a second shell, wherein the first shell and the second shell are arranged at intervals, a first accommodating cavity and a second accommodating cavity are respectively enclosed by the first shell and the second shell, the second accommodating cavity is partially overlapped with the first accommodating cavity, and one end of the air inlet pipe is located in the second accommodating cavity. According to the invention, the air inlet pipe is arranged in the cavity of the overlapped part, so that noise generated by the air flow sprayed from the air inlet pipe impacting water can be finally transmitted to the external environment only through the two layers of shells and the space between the two layers of shells, and the noise is gradually attenuated after being transmitted step by step, thereby effectively reducing the decibel number of the noise, reducing the environmental noise and improving the user experience.

In some embodiments, as shown in fig. 3, the second housing 14 includes an inner housing 141 disposed within the first receiving chamber 12A. Specifically, the inner housing 141 is disposed in the first accommodation chamber 12A, that is, the first housing 12 is disposed around the inner housing 141 with a space therebetween. The specific structure of the inner housing 141 may be various, for example, as shown in fig. 3, the second accommodating cavity 14A enclosed by the inner housing 141 may be a cavity with one end open; as shown in fig. 4, it may be a cavity with two open ends; as shown in fig. 5, it may be a closed cavity without an opening, which is enclosed by the first housing 12. The air inlet pipe 11 and the stirring member are disposed in the second accommodating chamber 14A surrounded by the inner case 141. The negative oxygen ions generated in the second accommodating chamber 14A can be discharged from the second accommodating chamber 14A through the opening of the end of the second accommodating chamber 14A or the through hole formed in the inner case 141. It will be appreciated that as the compressed air violently hits the water, near the end 111 of the inlet pipe, splash-over can occur, and if splash-over hits the housing, the splash-over will also produce a loud noise. By disposing the inner case 141 in the first accommodation chamber 12A while maintaining a space from the first case 12, then, the inner case 141 can block at least part of the water splash from directly splashing to the first case 12. That is, the original water area is spatially divided into two parts by the blocking effect of the inner casing 141, one part is located in the second accommodating chamber 14A, and the other part is located in the first accommodating chamber 12A, wherein the state of the water in the second accommodating chamber 14A is relatively violent, and the state of the water in the first accommodating chamber 12A is relatively stable due to the disturbing effect of the compressed air and the stirring member 16, so that the environmental noise is effectively reduced.

As shown in fig. 3, the outlet pipe 13 is located between the inner casing 141 and the first casing 12, and the outlet pipe 13 is disposed in a relatively stable water area, so that the splashed water contains more water vapor, and may be discharged from the outlet pipe along with negative oxygen ions, and if the negative oxygen ions contain more water vapor, the user experience may be seriously affected, for example, a breathing mask connected to the outlet pipe 13 may accumulate more water vapor, or the water vapor may be directly sprayed to the face of the user. Through interior casing 141's separation effect, can effectively reduce the splash and splash to the one end of outlet duct 13 to effectively reduce steam and accompany the negative oxygen ion through outlet duct 13 exhaust probability, and then promote user experience.

According to the embodiment of the invention, the inner shell is arranged in the first accommodating cavity, so that on one hand, the inner shell can effectively prevent at least part of water flowers from directly splashing to the first shell, and therefore, the noise of the negative oxygen ion generator is effectively reduced; on the other hand, the physical separation of the inner shell reduces the probability that water vapor enters the air outlet pipe in the splash, improves the user experience, can also reduce a device for filtering water vapor which is arranged in the negative oxygen ion generator independently, and saves the cost for setting parts.

In some embodiments, as shown in fig. 5, the inner housing 141 and the first housing 12 enclose a substantially closed cavity, and in particular, the inner housing 141 includes a bottom wall 1411 and a side wall 1412. The bottom wall 1411 is located between the one end 111 of the air inlet pipe 11 and the first housing 12, and is spaced apart from both the air inlet pipe 11 and the first housing 12. Specifically, the bottom wall 1411 is disposed between the bottom of the first housing 12 and the one end 111 of the intake duct, and is kept at a predetermined interval from both the first housing 12 and the intake duct 11. The side wall 1412 extends toward the other end 112 of the air inlet duct 11 along an edge of the bottom wall 1411, and the side wall 1412 is located between the air inlet duct 11 and the first housing 12. Specifically, the side wall 1412 is disposed at the outer edge of the bottom wall 1411 and can extend upward, and the extending direction thereof does not need to be absolutely upward extending as long as there is a component of upward extension, for example, the side wall 1412 extends obliquely upward. The sidewall 1412, the bottom wall 1411 and the first housing 12 together form the second accommodating chamber 14A, the sidewall 1412 and the bottom wall 1411 together divide the water area into an inner water area and an outer water area, that is, the inner water area is located in the second accommodating chamber 14A, and the outer water area is located outside the second accommodating chamber 14A, compared with the separation form with the open end, the separation form can make the source noise be in a relatively closed environment, and the physical separation of the structural form can further reduce the disturbance effect of the inner water area on the outer water area, thereby further reducing the direct splashing of the splash to the first housing 12, improving the stability of the outer water area, and further reducing the environmental noise.

As shown in fig. 5, the bottom wall 1411 and/or the sidewalls 1412 define a through-hole 1413. Specifically, the outlet pipe 13 is disposed outside the second accommodation chamber 14A. A through hole 1413 may be formed in the bottom wall 1411 or the side wall 1412 for discharging the negative oxygen ions generated in the second accommodating chamber 14A into the first accommodating chamber 12A, so that the negative oxygen ions can smoothly enter the outlet pipe 13 and be guided out. Of course, the bottom wall 1411 and the sidewall 1412 may be provided with through holes 1413 to improve the efficiency of discharging negative oxygen ions. The number, shape and opening position of the through holes 1413 may be set according to actual needs, and are not particularly limited herein.

According to the embodiment of the invention, the specific structural form that the side wall and the bottom wall of the inner shell are arranged is adopted, so that the situation that spray splashes directly to the first shell can be effectively reduced, and the noise reduction effect is further improved.

In some embodiments, as shown in fig. 5, the height H of the sidewall 1412 is greater than a first preset value, which is 30 cm. Specifically, the height H of the sidewall 1412 is the length of the sidewall 1412 in the vertical direction. It is not preferred that the size is too small, and if the height H of the sidewall 1412 is too small, water splash may splash from the upper end of the sidewall 1412 into the second receiving cavity 14A, for example, directly onto the first housing 12 and/or to one end of the outlet pipe 13. The height of the sidewall 1412 can be properly increased, so that the splashing of water splash in the second accommodating cavity 14A out of the second accommodating cavity 14A is effectively reduced, the splashing of water splash onto the first shell 12 and/or onto one end of the air outlet pipe 13 is effectively improved, the noise reduction effect is improved, and/or the content of water vapor in negative oxygen ions is reduced. Illustratively, the first preset value is 30 cm. Through the height that improves the lateral wall to improve the lateral wall and block the ability that the water splash splashes out the second and hold the chamber, thereby improve negative oxygen ion generator's noise reduction effect and reduce the content of steam in the negative oxygen ion.

In some embodiments, as shown in fig. 5, the distance between the through hole 1413 and one end of the outlet pipe 13 is greater than 1 cm. Specifically, the through hole 1413 is an outlet for discharging negative oxygen ions from the second accommodating chamber 14A, and the splashing of water in the second accommodating chamber 14A is also violent, so that the negative oxygen ions coming out of the through hole 1413 may carry water vapor, and if the distance between the through hole 1413 and the outlet pipe 13 is too short, the water vapor is very easy to directly enter the outlet pipe 13 from the through hole 1413. The distance between the through holes 1413 and the outlet duct 13 can be appropriately controlled to reduce the probability of moisture entering the outlet duct 13. Illustratively, the distance between the through hole 1413 and the outlet pipe 13 may be greater than 1 cm.

In some embodiments, as shown in fig. 5, the sidewall 1412 is located between the inlet tube 11 and the outlet tube 13 in a direction perpendicular to the first direction. Specifically, the first direction may be an insertion direction of the one end 111 of the intake pipe 11. In the case where the inlet pipe 11 is inserted into the first accommodation chamber 12A in the vertical direction as shown in fig. 5, the inlet pipe 11 and the outlet pipe 13 may be provided on both sides of the side wall 1412 in the left-right direction. That is to say, the air inlet pipe 11 is located in the second accommodating cavity 14A, and the air outlet pipe 11 is located outside the second accommodating cavity 14A, and the air inlet pipe 11 and the air outlet pipe 11 are separated by the side wall 1412, so that the probability of water vapor entering the air outlet pipe 11 is effectively reduced.

In other embodiments, the second housing 14 may be disposed in other ways, for example, the second housing 14 includes an outer housing 142 disposed outside the first housing 12. Specifically, there may be three setting modes as follows:

first, as shown in fig. 2, the negative oxygen ion generator 10 has three layers of housings, an inner housing 141, a first housing 12, and an outer housing 142 from the inside to the outside. Wherein, interior casing 141 both can fall and make an uproar, can also effectively reduce the splash and splash to the noise that outside casing produced. An enclosed cavity 14B may be formed between the outer casing 142 and the first casing 12, the cavity 14B may be filled with water or other liquid, although the cavity 14B may also be a vacuum to further reduce noise.

Secondly, as shown in fig. 6, the negative oxygen ion generator 10 has two layers of shells, namely a first shell 12 and an outer shell 142 from the inside to the outside. The air inlet pipe 11, the air outlet pipe 13 and the stirring piece 16 can be arranged in a first accommodating cavity 12A enclosed by the first shell 12. The purpose of noise reduction is achieved by arranging the double-layer shell. The first casing 12 and the outer casing 142 are spaced apart, the spaced apart space may not be closed, and water or other liquid may be injected into the spaced apart space for further noise reduction.

Third, as shown in fig. 7, the negative oxygen ion generator 10 has two shells, a first shell 12 and an outer shell 142 from the inside to the outside. In contrast to the second, the first casing 12 and the outer casing 142 may enclose a closed cavity 14B, the cavity 14B may be filled with water or other liquid, and the cavity 14B may be a vacuum to further reduce noise.

The flexibility of the arrangement of the negative oxygen ion generator can be further improved by flexibly arranging the structural form of the second shell.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.