WO2021121356A1

WO2021121356A1 - Ultrasonic atomizer and oil-guide ceramic

Info

Publication number: WO2021121356A1
Application number: PCT/CN2020/137454
Authority: WO
Inventors: 刘建福; 钟科军; 郭小义; 尹新强; 易建华; 周永权
Original assignee: 湖南中烟工业有限责任公司
Priority date: 2019-12-20
Filing date: 2020-12-18
Publication date: 2021-06-24
Also published as: EP4059368A1; EP4059368A4

Abstract

An ultrasonic atomizer and an oil-guide ceramic, wherein the ultrasonic atomizer comprises an oil-guide assembly (2); the oil-guide assembly (2) comprises the oil-guide ceramic (21) and oil-storing cotton (22); the lower surface of the oil-guide ceramic (21) is provided as an uneven rough surface (212); the middle part of the rough surface (212) is provided with a concave placement groove (211); the oil-storing cotton (22) is placed in the placement groove (211); the bottom surface of the oil-storing cotton (22) is flush with the bottom surface of the rough surface (212), and both the rough surface (212) and the oil-storing cotton (22) abut against the middle part of the atomizing surface of an ultrasonic atomizing sheet (322), so that a local oil storage gap is generated at the place of contact of the rough surface (212) and the ultrasonic atomizing sheet (322), thus avoiding the phenomenon in which the ultrasonic atomizing sheet (322) is partially burnt or soaked in e-oil.

Description

Ultrasonic atomizer and oil-conducting ceramic

Technical field

The invention relates to an electronic cigarette, in particular to an ultrasonic atomizer and oil-conducting ceramics.

Background technique

The existing ultrasonic electronic cigarette atomizer generally uses oil-conducting cotton to directly communicate with the oil tank to realize oil-conducting. This type of oil-conducting cotton has the following problems:

1. When the temperature of the e-liquid in the oil silo increases with the progress of ultrasonic atomization, the viscosity of the e-liquid decreases, which makes the flow rate of the e-liquid on the oil-conducting cotton increase rapidly, and the quantity of the oil-conducting cotton increases. Excessive oil supply on the ultrasonic atomization film may easily cause problems such as the ultrasonic atomization film being soaked in smoke oil;

2. After the oil-conducting cotton absorbs the e-liquid, the pore gap of the oil-conducting cotton increases. When the temperature of the e-liquid increases with the progress of ultrasonic atomization, the viscosity becomes smaller, and the pore gap of the oil-conducting cotton increases. The rate of e-liquid on the oil-conducting cotton is accelerated, which will easily cause the ultrasonic atomizing film to be soaked in e-liquid, causing the ultrasonic atomizing film to inadequately atomize the e-liquid and the smoke particles have a large sense of smoke. The smoke oil feels, the experience is not good.

In addition, because the ultrasonic atomizer sheet is working, the oscillation frequency and intensity of the same ultrasonic atomizer sheet are different at different positions. That is to say, the e-liquid at different positions of the same ultrasonic atomizer sheet is atomized into smoke with different efficiency, which is prone to localization. The phenomenon of dry burning. For example, the center position of the ultrasonic atomizer sheet has the highest atomization efficiency, so the smoke oil in the center position of the ultrasonic atomizer sheet is easily consumed, resulting in the dry burning phenomenon in the center position of the ultrasonic atomizer sheet; After the film has been working for a period of time, when the rate of e-liquid on the oil-conducting cotton increases, the ultrasonic atomizing film is easily soaked by the e-liquid; when the ultrasonic atomizing film stops working for a period of time and starts working again, the e-liquid is in the e-liquid The oil conduction rate on the cotton slows down, and the central position of the ultrasonic atomization film is prone to dry burning, which affects the taste of smoke.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art that the ultrasonic atomization sheet is prone to partial dry burning or soaking in e-liquid, provide a stable oil conduction rate, and can prevent the ultrasonic atomization sheet from being partially burned or immersed in e-liquid. Ultrasonic atomizer soaked in smoke oil.

In order to solve the above technical problems, the present invention provides an ultrasonic atomizer, which includes an oil guide assembly, the oil guide assembly includes an oil guide ceramic and an oil storage cotton, and the lower surface of the oil guide ceramic is configured to be uneven. Rough surface, a concave placement groove is arranged in the middle of the rough surface, the oil storage cotton is placed in the installation groove, the bottom surface of the oil storage cotton is flush with the bottom surface of the rough surface, and the rough surface Both the oil storage cotton and the oil storage cotton are held against the middle of the atomization surface of the ultrasonic atomization sheet, so that a local oil storage gap is generated at the contact between the rough surface and the ultrasonic atomization sheet.

In the present invention, the oil-conducting ceramic is used to guide the oil. Since the porosity of the oil-conducting ceramic does not change due to temperature changes, the oil-conducting rate remains constant. In addition, the oil-conducting ceramic of the present invention contacts the atomization surface of the ultrasonic atomization sheet with a rough surface, so that the rough surface and the ultrasonic atomization sheet are in contact with local oil storage gaps, so that e-liquid can be stored in these oil storage gaps. (That is, the e-liquid is in direct contact with the surface of the ultrasonic atomization sheet), and the bottom surface of the oil storage cotton is flush with the rough surface after being placed in the placement tank. This will not only help the e-liquid on the rough surface be absorbed by the oil storage cotton, but also store it. The smoke oil on the cotton wool can be stored on the rough surface. When the ultrasonic atomizer sheet is working, the oscillation frequency intensity of the same ultrasonic atomizer sheet at different positions is different, that is to say, the e-liquid at different positions of the same ultrasonic atomizer sheet is atomized into smoke with different efficiency, due to the oil storage cotton and the atomization efficiency The highest contact of the center position of the ultrasonic atomizer sheet, with the strong storage capacity of the oil storage cotton, it can ensure that there is a sufficient amount of smoke oil to supply the ultrasonic atomization at the center position of the ultrasonic atomizer sheet; even the smoke oil on the oil storage cotton After being consumed, the oil storage cotton can also quickly absorb the smoke oil stored in the oil storage gap of the rough surface, so as to ensure the timely replenishment of the amount of smoke oil on the oil storage cotton, and avoid dry burning at the center of the ultrasonic atomizer; in addition, ultrasonic The peripheral atomization efficiency of the center position of the atomization sheet is relatively weak. The present invention contacts the rough surface of the oil-conducting ceramic with the outer periphery of the center position of the ultrasonic atomization sheet and provides it with the e-liquid required for atomization. E-liquid can be absorbed by the oil storage cotton, so it can prevent the center and periphery of the ultrasonic atomizing sheet from being soaked by the e-liquid, which affects the efficiency of atomization.

Further, the middle part of the oil-conducting ceramic is provided with an air outlet hole axially penetrating the oil-conducting ceramic, so that the oil storage cotton is exposed from the bottom of the air outlet. When the ultrasonic atomization sheet is working, the smoke oil on the ultrasonic atomization sheet and the oil storage cotton is ultrasonically atomized into smoke, and the smoke is carried out to the user's mouth by the airflow flowing through the air guide groove into the air outlet. In the process, The atomization efficiency at the center of the ultrasonic atomization sheet is the highest. Because the oil storage cotton directly contacts the center of the ultrasonic atomization sheet and communicates with the vent hole (that is, the oil storage cotton is exposed from the bottom of the vent hole). The smoke oil on the oil storage cotton can be atomized as soon as possible, and the atomized smoke can be directly discharged through the air outlet to the air outlet channel without obstruction, so that not only the smoke can flow into the air outlet channel at the fastest speed, but also the smoke can be more fully discharged Of bring out. In addition, due to the large length of the side wall of the vent hole, when the smoke passes through the vent hole, the smoke hits the side wall of the vent hole. The ceramic on the side wall of the vent hole absorbs the large smoke oil droplets in the smoke, thereby preventing the user from inhaling Smoke oil drops to improve the taste of smoke.

Further, an air guiding groove is provided on the lower surface of the oil guiding ceramic, and the air guiding groove is communicated with the bottom of the air outlet to facilitate the use of airflow to bring the smoke generated by the ultrasonic atomization of the ultrasonic atomizing sheet to the outlet. Stomata.

Further, a plurality of the air guide grooves are radially distributed on the lower surface of the oil-conducting ceramic, so that the airflow flows from all directions of the atomizing surface of the ultrasonic atomizing sheet into the air outlet, and the ultrasonic atomizing sheet atomizing surface The smoke generated at each location is brought into the air outlet.

Further, an oil storage cavity is arranged around the outer periphery of the air outlet, so that the distance between the smoke oil and the ultrasonic atomization sheet is closer, and the time for the oil guide ceramic to guide the smoke oil to the ultrasonic atomization sheet is relatively shorter. When the film is working, the oil-conducting ceramic can quickly supply smoke oil to the ultrasonic atomizer to ensure the uninterrupted ultrasonic atomization of the ultrasonic atomizer, so that the amount of smoke consumed by the user is equal, and the smoke tastes better.

Further, a plurality of stiffeners are arranged in the oil storage cavity, and the stiffeners are distributed radially on the outer periphery of the vent hole, so that the sidewalls of the vent hole are supported by the stiffeners to strengthen the overall structure of the oil-conducting ceramic strength.

Further, the vertical distance between the bottom surface of the oil storage cavity and the ultrasonic atomization sheet is 0.5 mm-8 mm. Since the distance between the bottom surface of the oil storage cavity and the ultrasonic atomization sheet is related to the e-liquid conduction speed: the smaller the distance, the shorter the e-liquid conduction time and the faster the e-liquid conduction speed; the greater the distance, the e-liquid conduction The longer the time, the slower the e-liquid conduction speed. Therefore, by controlling the distance between the bottom surface of the oil storage cavity and the ultrasonic atomizing sheet, the purpose of controlling the e-liquid conduction time and the e-liquid conduction rate can be achieved. In the present invention, the vertical distance between the bottom surface of the oil storage cavity and the ultrasonic atomizing sheet is set to 0.5mm-8mm, so that the e-liquid can be promptly conducted to the ultrasonic atomizing sheet by the oil-conducting ceramic but not soaking the ultrasonic atomizing sheet, thereby avoiding The phenomenon that the ultrasonic atomization sheet is dry-burned due to too little smoke oil, and the phenomenon that the ultrasonic atomization sheet is soaked in smoke oil due to too much smoke oil.

Further, the ultrasonic atomizer further includes an oil storage assembly and an atomization assembly having an oil tank, the bottom of the oil storage assembly is sequentially installed with the oil guide assembly and the atomization assembly, and the oil storage assembly An air outlet channel communicating with the suction nozzle is provided, an air inlet channel communicating with the outside atmosphere is provided in the atomization assembly, and the air inlet channel communicates with the air outlet channel through the air guiding groove and the air outlet of the oil guiding ceramic .

Based on the same inventive concept, the present invention provides an oil-conducting ceramic, the lower surface of the oil-conducting ceramic is set as a rough surface with unevenness, and the middle part of the rough surface is concavely provided with a placement groove for placing oil storage cotton.

When the oil-conducting ceramic of the present invention is used, the rough surface of the oil-conducting ceramic is in contact with the ultrasonic atomization sheet, so that local oil storage gaps are generated where the rough surface contacts the ultrasonic atomization sheet, and the e-liquid is stored in these oil storage gaps (ie The e-liquid is in direct contact with the surface of the ultrasonic atomization sheet), and the bottom surface of the oil storage cotton is flush with the rough surface after being placed in the placement tank. This will not only help the e-liquid on the rough surface be absorbed by the oil storage cotton, but also make the storage cotton The smoke oil on the cotton wool can be stored on the rough surface because the oscillation frequency intensity of the same ultrasonic atomizer is different at different positions, that is to say, the smoke oil at different positions of the same ultrasonic atomizer is atomized into smoke with different efficiency. At the same time, because of the oil storage Cotton has a strong ability to store e-liquid, that is, the amount of e-liquid stored is more, while the amount of e-liquid stored in the oil-conducting ceramics is relatively small, so it can be used by the oil storage cotton and the rough surface to resist the different positions of the ultrasonic atomization sheet. Avoid local dry burning of the ultrasonic atomization sheet. For example, when the atomization efficiency at the center of the ultrasonic atomizer is the highest, the oil storage cotton is in contact with the center of the ultrasonic atomizer, so the oil storage cotton has enough smoke oil to provide the atomized smoke oil required for each puff of smoking. If the e-liquid on the oil-storage cotton is easily consumed, the e-liquid stored in the gap in the rough surface can be quickly absorbed by the oil-storage cotton, so the amount of e-liquid on the oil storage cotton can be replenished in time.

Compared with the prior art, the beneficial effects of the present invention are:

1. The oil-conducting ceramic of the present invention is in contact with the ultrasonic atomization sheet with a rough surface, so that a local oil storage gap is generated where the rough surface contacts the ultrasonic atomization sheet, and the e-liquid is stored in these oil-storage gaps (ie e-liquid and ultrasonic mist The surface of the oil storage cotton is in direct contact), and the bottom surface of the oil storage cotton is flush with the rough surface after being placed in the placement tank. This will not only help the oil on the rough surface be absorbed by the oil storage cotton, but also the oil on the oil storage cotton can be absorbed by the oil storage cotton. Rough surface storage. When the oscillation frequency intensity of the same ultrasonic atomizer is different at different positions, that is to say, when the e-liquid at different positions of the same ultrasonic atomizer is atomized into smoke with different efficiency, local dry burning of the ultrasonic atomizer can be avoided. The phenomenon of smoke oil can also make the supply and demand of smoke oil reach the oil supply balance when the ultrasonic atomizer works or stops working.

2. The present invention uses the combination of oil-conducting ceramics and oil-storage cotton to conduct oil, and the oil-conducting ceramics are directly connected with the smoke oil in the oil silo and transmitted to the ultrasonic atomizing sheet and the oil storage cotton. The oil storage cotton only serves as oil storage. Therefore, during the ultrasonic atomization process, the amount of oil guiding of the oil guiding assembly is constant, the ultrasonic atomizing sheet will not be soaked by the smoke oil, the ultrasonic atomization efficiency is guaranteed, and the amount of smoke is stable.

3. The oil-conducting ceramic of the present invention is provided with a vent hole penetrating the oil-conducting ceramic at the center position, so that the oil storage cotton is exposed from the bottom of the vent hole, and the lower surface of the oil-conducting ceramic is provided with an air-conducting groove. The air guide groove is communicated with the bottom of the air outlet, so that the air flow can pass through the upper surface of the ultrasonic atomization sheet and the oil storage cotton, so that the smoke can be brought out more fully and in time.

Description of the drawings

Fig. 1 is a front cross-sectional view of the first embodiment of the ultrasonic atomizer of the present invention, and the arrows in the figure indicate the direction of air flow.

Fig. 2 is a cross-sectional view taken along line AA of Fig. 1, in which the thick arrow in the figure indicates the flow direction of e-liquid, and the thin arrow in the figure indicates the flow direction.

Figure 3 is the first three-dimensional structure diagram of the oil-conducting ceramic of the present invention.

Fig. 4 is the second three-dimensional structure diagram of the oil-conducting ceramic of the present invention.

Figure 5 is a partial cross-sectional view of the oil guiding ceramic of the present invention.

Figure 6 is an exploded view of the ultrasonic atomizer of the present invention.

In the picture:

1. Oil storage assembly; 11. Shell; 12. Plug body; 13. Oil tank; 14. Air outlet channel;

2. Oil guide components; 21. Oil guide ceramics; 22. Oil storage cotton; 211. Placement groove; 212. Rough surface; 213. Air guide groove; 214. Air outlet; 215. Oil storage cavity; 216. Reinforcing ribs;

3. Atomization assembly; 31. Bottom cover; 32. Atomization head; 33. Air inlet channel; 321. Atomization sleeve; 322. Ultrasonic atomization sheet; 323. Insulation seat; 324. Electrode assembly;

4. Gasket.

Detailed ways

The following further describes the present invention in combination with specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

For ease of description, the relative positional relationship of each component, such as the description of top, bottom, left, right, etc., are described according to the layout direction of the drawings in the specification, and does not limit the structure of the patent.

Example 1:

As shown in Figures 1-6, the ultrasonic atomizer of this embodiment includes an oil storage assembly 1, an oil guide assembly 2, and an atomization assembly 3. The oil guide assembly 2 and the atomization assembly 3 are sequentially installed on the oil storage assembly 1. bottom.

The oil storage assembly 1 includes a housing 11 and a plug body 12 that are joined to each other. After the housing 11 and the plug body 12 are joined, an oil tank 13 is formed inside. The plug body 12 is preferably a silicone plug with elasticity.

The oil guide assembly 2 includes an oil guide ceramic 21 and an oil storage cotton 22. The thickness of the oil storage cotton 22 is 0.1-1.0 mm.

A placement groove 211 is provided in the middle of the lower surface of the oil guiding ceramic 21. The size of the placement groove 211 is the same as the size of the oil storage cotton 22, and the surface roughness of the placement groove is Ra0.5—Ra3.5. The oil cotton 22, the friction force between the oil storage cotton 22 and the placement groove 211 is relatively large, so the oil storage cotton 22 is placed more firmly, and the lower surface of the oil guiding ceramic 21 is also set as a rough surface 212, the roughness of the rough surface 212 is Ra0 .1—Ra7.5, the rough surface 212 can be polished by setting small holes or grooves to form an uneven surface, so that when the rough surface 212 is in contact with the ultrasonic atomizing sheet 322, there is a certain oil storage gap that can store e-liquid; Both the oil wool 22 and the rough surface 212 are held against the atomizing surface of the ultrasonic atomizing sheet 322, so that there is smoke oil on the atomizing surface of the ultrasonic atomizing sheet 322.

The center of the oil guiding ceramic 21 is provided with an air outlet 214 penetrating the oil guiding ceramic 21. The line diameter of the installation groove 211 is larger than that of the air outlet 214, so a part of the oil storage cotton 22 is exposed from the bottom of the air outlet 214 without blocking. Therefore, when the ultrasonic atomization sheet 322 is working, this part of the atomized e-liquid produces the fastest smoke and the largest amount of smoke. The other part of the oil storage cotton 22 is held against the ultrasonic atomization sheet 322 by the placement groove 211 to prevent storage The oil cotton 22 is skewed or wrinkled, which affects the oil guiding effect of the oil storage cotton 22 and the ultrasonic atomization sheet 322 after contact. The lower surface of the oil guiding ceramic 21 is radially distributed with a plurality of air guiding grooves 213. The air guiding grooves 213 penetrate the rough surface 212 and the placement groove 211 until the air guiding grooves 213 communicate with the bottom of the air outlet 214. When the air groove 213 is used, the air flow brings the smoke generated from the surface of the rough surface 212 and the surface of the oil storage cotton 22 in the installation groove 211 into the air outlet 214, and is finally sucked by the user.

The oil guiding ceramic 21 is provided with an oil storage cavity 215, and the oil storage cavity 215 is arranged around the outer circumference of the air outlet 214. After the oil guiding ceramic 21 is assembled with the oil storage assembly 1, the oil storage cavity 215 is connected to the oil The bin 13 is connected, that is, e-liquid is stored in the oil storage cavity 215, so that the direct contact area between the e-liquid and the oil-conducting ceramic 21 is larger, thereby increasing the speed at which the oil-conducting ceramic 21 conducts the e-liquid; the oil storage cavity 215 The reinforcing ribs 216 are arranged inside, which not only can increase the contact area between the oil-conducting ceramic 21 and the e-liquid, but also can make the internal structure of the oil-conducting ceramic 21 stronger, facilitate assembly, and improve assembly efficiency and yield.

The vertical distance between the bottom end of the oil storage cavity 215 and the ultrasonic atomization sheet 322 is 0.5mm-8mm, so that the e-liquid in the oil storage cavity 215 is as close as possible to the atomization surface of the ultrasonic atomization sheet 322, but the guide The time required for the oil ceramic 21 to conduct the smoke oil to the atomization surface of the ultrasonic atomization sheet 322 is short. Therefore, the smaller the vertical distance from the bottom end of the oil storage cavity 215 to the ultrasonic atomization sheet 322, the faster the smoke oil conduction speed. The greater the value, the slower the smoke oil conduction speed; when the ultrasonic atomizer sheet 322 is working, the shorter the fuel supply distance, the faster the fuel supply, so as to prevent the ultrasonic atomizer sheet 322 from drying out and make the amount of smoke more stable.

The atomization assembly 3 includes a bottom cover 31 made of conductive material, and an atomization head 32 arranged in the bottom cover 31.

The atomizing head 32 includes a hollow atomizing sleeve 321 with conductivity, and an ultrasonic atomizing sheet 322 and an insulating seat 323 are sequentially arranged in the inner cavity of the atomizing sleeve 321 from top to bottom. An electrode assembly 324 is provided in the middle of the insulating seat 323. The upper end of the atomization sleeve 321 is in contact with the upper surface electrode of the ultrasonic atomization sheet 322, the lower end of the atomization sleeve 321 is wrapped around the bottom of the insulating seat 323 as the first electrode connection end, and the lower surface electrode of the ultrasonic atomization sheet 322 is connected with The electrode assembly 324 is electrically connected, and the electrode assembly 324 serves as a second electrode terminal.

The rough surface 212 of the oil guiding ceramic 21 and the oil storage cotton 22 are both placed on the ultrasonic atomization sheet 322, the oil storage assembly 1 is provided with an air outlet channel 14, the atomization assembly 3 is provided with an air inlet channel 33, and the air inlet channel 33 passes through The air guiding groove 213 and the air outlet hole 214 of the oil guiding ceramic 21 communicate with the air outlet channel 14.

When this embodiment is used, the user sucks from the suction nozzle of the air outlet channel 14 of the oil storage assembly 1, so that external air enters from the air inlet channel 33, and enters the air outlet channel through the air guiding groove 213 and the air outlet 214 of the oil guiding ceramic 21 14. E-liquid is conducted from the oil tank 13 to the ultrasonic atomization sheet 322 through the oil guide assembly 2. The ultrasonic atomization sheet 322 is electrically connected to the external power supply through the atomization sleeve 321 and the electrode assembly 324 to achieve ultrasonic atomization. The ultrasonic atomization sheet The smoke atomized by the ultrasonic atomization on the 322 and the oil storage cotton 22 is taken out to the mouth of the user through the air outlet 214 and the air outlet channel 14 by the passing air flow, and is sucked.

The above are only the preferred embodiments of the application, and do not limit the application in any form. Although the application is disclosed as above in the preferred embodiments, it is not intended to limit the application. Anyone familiar with the profession, Without departing from the scope of the technical solution of the present application, making some changes or modifications using the technical content disclosed above is equivalent to an equivalent implementation case and falls within the scope of the technical solution.

Claims

An ultrasonic atomizer, comprising an oil guide assembly (2), characterized in that the oil guide assembly includes an oil guide ceramic (21) and an oil storage cotton (22), and the lower surface of the oil guide ceramic is configured as concave and convex An uneven rough surface (212), a concave placement groove (211) is arranged in the middle of the rough surface, and the oil storage cotton is placed in the placement groove, and the bottom surface of the oil storage cotton and the bottom surface of the rough surface Flush, and the rough surface and the oil storage cotton are both held against the middle of the atomization surface of the ultrasonic atomization sheet (322), so that the rough surface and the ultrasonic atomization sheet are in contact with local oil storage gap.
The ultrasonic atomizer according to claim 1, characterized in that the middle part of the oil-conducting ceramic is provided with an outlet hole (214) axially penetrating the oil-conducting ceramic, and the oil-storing cotton is removed from the The bottom of the vent is exposed.
The ultrasonic atomizer according to claim 2, characterized in that an air guiding groove (213) is provided on the lower surface of the oil guiding ceramic, and the air guiding groove is communicated with the bottom of the air outlet hole.
The ultrasonic atomizer according to claim 3, wherein a plurality of the air guide grooves are distributed radially on the lower surface of the oil guide ceramic.
The ultrasonic atomizer according to claim 2, characterized in that, an oil storage cavity (215) is arranged around the outer circumference of the air outlet.
The ultrasonic atomizer according to claim 5, wherein a plurality of reinforcing ribs (216) are arranged in the oil storage cavity, and the reinforcing ribs are distributed radially on the outer periphery of the air outlet.
The ultrasonic atomizer according to claim 5, wherein the vertical distance between the bottom surface of the oil storage cavity and the ultrasonic atomization sheet is 0.5 mm-8 mm.
An ultrasonic atomizer according to claim 3, characterized in that it further comprises an oil storage assembly (1) and an atomization assembly (3) with an oil tank (13), and the bottom of the oil storage assembly is installed in sequence. The oil guide assembly and the atomization assembly, the oil storage assembly is provided with an air outlet channel (14) that communicates with the suction nozzle, and the atomization assembly is provided with an air inlet channel (33) that communicates with the outside atmosphere. The air inlet channel is communicated with the air outlet channel through the air guiding groove and the air outlet hole of the oil guiding ceramic.
An oil-conducting ceramic, characterized in that the lower surface of the oil-conducting ceramic is set as an uneven rough surface (212), and the middle of the rough surface is concavely provided with a placement groove for placing oil storage cotton (22) (211).
An oil-conducting ceramic according to claim 9, characterized in that the middle part of the oil-conducting ceramic is provided with an outlet hole (214) axially penetrating the oil-conducting ceramic, and the lower surface of the oil-conducting ceramic An air guiding groove (213) is provided, and the air guiding groove is communicated with the bottom of the air outlet.
The oil-conducting ceramic of claim 9, wherein a plurality of the air-conducting grooves are radially distributed on the lower surface of the oil-conducting ceramic.
An oil-conducting ceramic according to claim 9, characterized in that an oil storage cavity (215) is arranged around the outer circumference of the air outlet.
The oil-conducting ceramic according to claim 9, characterized in that a plurality of reinforcing ribs (216) are arranged in the oil storage cavity, and the reinforcing ribs are distributed radially on the outer periphery of the air outlet.