CN108201175B - Atomizing core, preparation method, atomizer, and electronic cigarette - Google Patents

Abstract

The invention discloses an atomization core, a preparation method, an atomizer and an electronic cigarette. The atomizing core comprises an atomizing ring with a hollow channel, and an inner hole wall surface of the atomizing ring is an atomizing surface and is used for atomizing tobacco tar; an oil guide structure is arranged at the inner hole wall surface and one side of the outer wall surface of the atomizing ring and is used for guiding tobacco tar to the atomizing surface from one side of the outer wall surface of the atomizing ring; the lower end of the atomizing ring is communicated with the air outlet end of the air inlet channel, and the upper end of the atomizing ring is communicated with the inlet of the smoke and oil mist outlet channel. The atomization surface of the atomization ring is the inner wall surface of the atomization ring, so that the problems that the conventional atomizer cannot generate fog when the oil is immersed in the oil, large particles are directly sprayed into an oral cavity, and the fog is not carried out sufficiently can be solved.

Description

Atomizing core, preparation method, atomizer, and electronic cigarette

Technical field

The invention relates to an atomizing core, a preparation method, an atomizer, and an electronic cigarette, and belongs to the field of electronic cigarettes.

Background technique

There are currently ultrasonic e-cigarettes. Existing high-frequency ultrasonic e-cigarettes are easy to soak in oil and fail to produce mist, the smoke is not brought out sufficiently, the space utilization rate is not high, and large particles of smoke are easy to be inhaled.

The atomizer sheets used in existing high-frequency ultrasonic e-cigarettes are all disc-shaped piezoelectric ceramics.

Chinese patent CN201610145881.5 discloses an electronic cigarette atomizer and an electronic cigarette. The atomizer includes a suction nozzle and an oil cup. An atomization chamber is connected between the oil cup and the suction nozzle; the atomization chamber is connected by the above The cover and the base cover are combined to form; a first heating element is fixed in the atomization chamber; the first heating element is in contact with the oil storage piece; the oil storage piece is in contact with the top of the oil guide structure in the oil cup; at least one contact is provided on the upper cover. The air outlet connected to the nozzle cavity. When the first heating element works, the liquid is atomized to form smoke. At the same time, the air in the atomization chamber is also heated by the first heating element, causing the air in the atomization chamber to heat and expand. At this time, a high temperature and high pressure is formed in the atomization chamber. cavity, so that the smoke and the heated air are mixed in the atomization chamber, and then automatically sprayed out from the smoke oil mist channel; because the smoke in the atomization chamber is mixed with the heated air and atomized, the smoke Delicate taste.

Chinese patent CN201610160216.3 discloses an ultrasonic atomizer and an electronic cigarette. The ultrasonic atomizer includes an atomizer sheet and a liquid guide structure for introducing liquid to the upper surface of the atomizer sheet; the liquid guide structure and a storage The liquid chamber is connected; the upper surface of the atomization piece is connected with the air flow channel; the atomization piece includes a piezoelectric ceramic layer and a conductor used to drive the vibration of the piezoelectric ceramic layer. This atomizing piece does not need to be provided with micropores to eject atomized gas, so there will be no situation where large atomized gas particles block the micropores and the atomized gas cannot be ejected, and at the same time, the leakage of atomizer liquid can be better prevented.

The problems with the above-mentioned patents are as follows:

1. The oil circuit is not easy to control, and it is prone to oil bubbles and no mist;

2. The air path can only pass through the surface, and the smoke brought out is not sufficient;

3. The radial space occupied is relatively large, so the overall space utilization of the atomizer is not high, and it is difficult to reduce the size;

4. Large particles of smoke will be sprayed vertically upwards on the surface of the atomizer piece, and can easily spray into the user's mouth. In serious cases, it will burn the mouth.

Contents of the invention

The present invention aims to provide an atomizing core, a preparation method, an atomizer, and an electronic cigarette. The atomizing surface of the atomizing ring of the atomizing core is its inner wall surface, thereby solving the problem that the existing atomizer cannot afford to soak up oil. Mist and large particles are sprayed directly into the mouth, and the smoke brings out insufficient problems.

In order to achieve the above objects, the technical solutions adopted by the present invention are:

An atomization core, its structural feature is that it includes an atomization ring with a hollow channel, the inner hole wall of the atomization ring is the atomization surface, used for atomizing smoke oil; the inner hole wall of the atomization ring There is an oil guide structure at the top and one side of the outer wall. The oil guide structure is used to guide smoke oil from the outer wall of the atomization ring to the atomization surface; the lower end of the atomization ring is connected to the outlet end of the air inlet channel. The upper end of the atomization ring is connected with the entrance of the smoke oil mist passage.

Therefore, the present invention atomizes the e-liquid through the atomization ring, thereby changing its oil and air conduction mode. When the atomization ring is working, the inner hole surface of the atomization ring atomizes the e-liquid to form smoke, that is, the smoke flows into the mist. It sprays in the radial direction of the inner hole, and at the same time, the airflow passes through the inner hole to bring out the smoke. The smoke is taken away more fully, making the smoke larger. It completely solves the problem that the existing atomizer does not mist when soaking with oil and sprays large particles directly. Problems such as the entrance mouth, low space utilization, and insufficient smoke removal.

According to the embodiments of the present invention, the present invention can also be further optimized. The following is the technical solution formed after optimization:

Preferably, the oil guide structure is oil guide cotton, which extends upward along one side of the outer wall surface of the atomization ring and extends downward along the inner hole wall surface of the atomization ring.

In order to ensure that the smoke oil is atomized more fully, the oil guide structure is in direct contact with the atomization surface of the atomization ring; preferably, the inner hole of the atomization ring is provided with an atomization surface that presses the oil guide structure against the atomization ring. Elastic element or bracket on; more preferably, the elastic element is a spring. Therefore, the spring is used to fix the oil-conducting cotton and ensure good contact between the oil-conducting cotton and the inner cavity surface of the ultrasonic atomization ring.

Preferably, the outer wall of the atomizer ring and the oil guide structure located on one side of the outer wall of the atomizer ring are separated by an inner casing; the oil guide structure on one side of the outer wall of the atomizer ring is provided with an outer casing. ; Preferably, the outer sleeve has a hole or a groove, and the hole or groove is used to connect the oil guide structure and the oil tank.

Because the ultrasonic atomizing ring will generate a certain amount of heat when working, in order to prevent the atomizer from overheating, the heat can be isolated by a silicone sleeve to prevent the atomizer from becoming hot. That is, the atomization ring and the inner sleeve are separated by a silicone sleeve; preferably, the top and bottom ends of the silicone sleeve are in contact with the atomization ring, and the middle part of the inner wall of the silicone sleeve is in contact with the outer wall of the atomization ring. An insulating gap is formed between the middle parts. This can further improve the heat insulation effect and avoid burning your hands.

Preferably, the atomization ring is a cylindrical structure made of piezoelectric ceramics; preferably, the cross section of the atomization ring perpendicular to its length direction is circular, oval or square. Since the atomizing ring is used as the atomizing element, the radial size of the atomizer can be made smaller and the space utilization rate is higher.

Based on the same inventive concept, the present invention also provides a preparation method of an ultrasonic atomization ring, which includes the following steps:

S1. Press the blank into the shape of an atomization ring and sinter the cylindrical porcelain body;

S2. Conductive electrodes are provided on the surface of the porcelain body so that the atomization ring has piezoelectric properties;

S3. Lead out electronic wires or electrodes from the outer surface electrode of the atomization ring and the inner surface electrode of the atomization ring. The electronic wires or electrodes are used for electrical connection with the external electrodes; preferably, the inner wall surface of the atomization ring is coated with a glaze layer.

Preferably, in step S1, the blank is made of lead zirconate titanate.

Preferably, in step S2, conductive electrodes are provided on the surface of the porcelain body through silver layer sintering, chemical deposition or vacuum coating. Therefore, by plating a glaze layer on the surface of the electrode that is in contact with the oil-conducting cotton, the electrode can be prevented from being corroded by smoke oil.

Based on the same inventive concept, the present invention also provides an ultrasonic atomizer, which includes a suction nozzle mounted on a suction nozzle holder, a base, and a shell connected between the suction nozzle holder and the base; It is characterized by: , the nozzle seat is connected to a connecting ring, the atomizing seat is installed in the base, the atomizing core is provided between the atomizing seat and the connecting ring, and the atomizing core is located in the outer shell; An oil tank is provided between the outer shell and the atomizing core, and the oil guide structure is used to guide the e-liquid in the oil tank to the inner wall surface of the atomizing ring for atomization; the hollow channels of the nozzle and the connecting ring are connected to form There is a smoke and oil mist passage; the atomization seat and the base are provided with an air inlet passage that communicates with the outside world.

Preferably, the connecting ring has a trumpet-shaped channel with an upper port diameter larger than a lower port diameter. Therefore, this trumpet-shaped air pipe structure can facilitate the air pipe to better flow the condensed smoke oil downward, and can also prevent the user from inhaling the condensed smoke oil.

In order to prevent the user's fingers from blocking the air inlet when using the electronic cigarette, resulting in poor atomization effect, an air storage cavity is formed between the atomizer seat and the base. Furthermore, the air storage cavity can also be used to store e-liquid left in the atomizing core to prevent the e-liquid from leaking into the power supply part of the electronic cigarette and damaging the power supply.

Preferably, the lower end of the base is equipped with an electrode ring, which is electrically connected to the atomizing ring through the atomizing core electrode ring installed in the atomizing base, and the atomizing base and the atomizing core electrode ring They are separated by an insulating ring of the atomization core; preferably, an insulating ring is installed outside the electrode ring.

Preferably, there is an air inlet on the side wall of the base, and the air inlet is connected with the air inlet channel; preferably, the air inlet is equipped with an air regulating ring for adjusting the amount of air inlet.

In order to facilitate the disassembly of various parts of the atomizer for cleaning, repair or replacement, the base is detachably fixedly connected to the lower end of the housing through a lower end cover; the lower end of the nozzle seat is detachably connected to the upper end of the housing. Fixed connection; preferably, the detachable connection adopts threaded connection.

In order to facilitate observation of the amount of e-liquid in the oil tank, the outer wall of the oil tank is made of transparent material, and the outer shell is a cylindrical structure made of transparent material or has a hole in the middle of the side wall of the outer shell.

Based on the same inventive concept, the present invention also provides an electronic cigarette, which includes a battery component and an ultrasonic atomizer; characterized in that the ultrasonic atomizer is the ultrasonic atomizer; the battery component is The atomizing ring of the ultrasonic nebulizer is powered. The piezoelectric ceramic atomization ring of the present invention can change the current oil and gas conduction methods of high-frequency ultrasonic atomizers, improve the spray direction of ultrasonic atomization, and improve the space utilization of the atomizer.

The invention can be applied to all current ultrasonic electronic cigarette atomizer products.

The invention makes high-frequency piezoelectric ceramics into a middle-pass annular structure with a certain shape, and then changes its oil and gas conduction mode, thereby solving the problem of no mist when the atomizer soaks in oil, large particles are sprayed directly into the mouth, and space utilization. Problems such as low height and insufficient smoke extraction.

With the above structure, the present invention provides a special-shaped piezoelectric ceramic atomizer piece, which is a central annular structure, and the cross-section can be a circular, oval, or square structure. By turning the oil guide path 180 degrees, it can well prevent the atomization ring from seeping oil too quickly, causing the problem of oil bubbles and no mist; secondly, the annular atomizer sheet can fix the oil guide cotton through the spring, so that it is close to On the inner wall of the atomization ring, the airflow is located in the annular middle through hole. When it goes from bottom to top, it can be taken away more fully and make the smoke larger. Furthermore, since the main vibration direction of the annular atomization piece is radial Vibrate, so large particles of smoke will not be sprayed upward, and large particles of smoke oil will not be sprayed directly into the smoker's mouth; finally, the radial size of the annular atomizer can be made smaller, so that the radial space of the entire atomizer can be utilized The efficiency is higher, and the overall outer diameter of the atomizer can be made smaller.

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

1. There is an ultrasonic atomizing ring inside the atomizing core. The inner hole surface of the ultrasonic atomizing ring is used to atomize smoke oil. When the ultrasonic atomizing ring works, the inner hole surface atomizes the smoke oil to form smoke, that is, the smoke flows toward the atomizer. The atomized inner hole is sprayed in the radial direction, and the airflow passes through the inner hole to bring out the smoke. The direction of the airflow is perpendicular to the direction of ultrasonic smoke ejection, so that the smoke with light weight and small particles is brought to the nozzle by the airflow for the user to smoke, improving the taste of the smoke; at the same time, it can well prevent large particles from spraying directly upward and scalding the mouth. question;

2. The inner hole of the ultrasonic atomization ring is equipped with an elastic member (spring). The spring is used to support the oil-conducting cotton so that the oil-conducting cotton contacts the inner wall of the inner hole of the ultrasonic atomizing ring to prevent the ultrasonic atomizing ring from contacting the guide when working. Poor contact with the oil cotton may cause burning or damage to itself.

3. The oil-conducting cotton absorbs the e-liquid in the e-liquid tank through the through hole on the outer sleeve of the atomizing core. The oil-conducting cotton is bent along the atomizing core near the nozzle end and extends to the inner hole of the ultrasonic atomizing ring, effectively preventing The e-liquid flows too fast and affects the atomization effect.

4. There is an air storage chamber at the bottom of the atomizer, and the air inlet is set on the side wall of the air storage chamber and connected to the atmosphere to prevent users from blocking the air inlet with their fingers when using e-cigarettes. It can also be used to Store the e-liquid left in the atomizer core to prevent the e-liquid from leaking into the power supply part of the electronic cigarette and damaging the power supply.

5. The mouthpiece is equipped with a trumpet-shaped air pipe structure, which facilitates the air pipe to better flow the condensed e-liquid downwards, and also prevents users from inhaling the condensed e-liquid.

Description of the drawings

Figure 1 is a structural cross-sectional view of an embodiment of the present invention;

Figure 2 is a flow diagram of e-liquid and gas in Figure 1;

Figure 3 is an elevation sectional view of an embodiment of the present invention;

Figure 4 is an exploded schematic diagram of the main components of the atomizer of the present invention;

Figure 5 is an exploded schematic diagram of the atomizer of the present invention;

Figure 6 is a schematic cross-sectional view of the structure of the atomizing core of the present invention;

Figure 7 is an exploded schematic diagram of the atomizing core of the present invention;

Figure 8 is an elevation sectional view of the atomizing core of the present invention;

Figure 9 is a flow chart of the manufacturing process of the atomization ring according to the present invention;

Figure 10 is an assembly process diagram of the atomizer of the present invention;

Figure 11 is a schematic cross-sectional view of another embodiment of the atomizing core of the present invention;

Figure 12 is an elevation sectional view of another embodiment of the atomizer core of the present invention;

Figure 13 is an exploded schematic diagram of another embodiment of the atomizing core of the present invention;

Figure 14 is a schematic diagram of the preparation of the atomization ring according to the present invention;

Figure 15 is a schematic diagram of the appearance of an atomization ring according to the present invention;

Figure 16 is a schematic diagram of the appearance of another atomization ring according to the present invention.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of the present invention can be combined with each other. For the convenience of description, if the words "up", "down", "left" and "right" appear in the following, they only mean that they are consistent with the directions of up, down, left and right in the drawing itself and do not limit the structure.

Example 1

An atomizing core, as shown in Figures 1-8, includes an atomizing ring 5 with a hollow channel. The inner hole wall of the atomizing ring 5 is the atomizing surface, which is used to atomize smoke oil. The inner hole wall and one side of the outer wall of the atomization ring 5 are provided with oil-conducting cotton 18. The oil-conducting cotton 18 is arranged from bottom to top, then bent 180° and then top to bottom, for transferring the smoke oil from The oil tank 17 on one side of the outer wall of the atomization ring 5 is guided to the atomization surface. The lower end of the atomization ring 5 is connected to the air outlet end of the air inlet channel, and the upper end of the atomization ring 5 is connected to the inlet of the smoke oil mist outlet channel.

The inner hole of the atomization ring 5 is provided with an elastic element that presses the oil guide cotton 18 against the atomization surface of the atomization ring 5 so that the oil guide cotton 18 is in direct contact with the atomization surface of the atomization ring 5 . The elastic element is preferably a spring 6.

The outer wall surface of the atomization ring 5 is separated from the oil-conducting cotton 18 located on one side of the outer wall surface of the atomizing ring 5 by an inner sleeve 7; the oil-conducting cotton 18 located on one side of the outer wall surface of the atomizing ring 5 is installed outside There is an outer sleeve 4; preferably, the outer sleeve 4 has holes or grooves, and the holes or grooves are used to connect the oil-conducting cotton 18 and the oil tank 17.

As shown in Figures 2 and 3, the atomization ring 5 and the inner sleeve 7 are separated by a silicone sleeve 19. It is best that the top and bottom ends of the silicone sleeve 19 are in contact with the atomization ring 5. A thermal insulation gap is formed between the middle part of the inner wall surface of the silicone sleeve 19 and the middle part of the outer wall surface of the atomizing ring 5 .

As shown in Figure 4, in order to facilitate the observation of the amount of e-liquid in the oil tank 17, the outer wall of the oil tank 17 is made of transparent material, and the outer shell 26 is a cylindrical structure made of transparent material or the side of the outer shell 26. There is a hole in the middle of the wall, and the transparent material used on the outer wall of the oil tank 17 is preferably glass.

The atomization ring 5 is a cylindrical structure made of piezoelectric ceramics; preferably, the cross section of the atomization ring 5 perpendicular to its length direction is circular, elliptical or square.

A method for preparing an ultrasonic atomization ring, as shown in Figure 9, includes the following steps:

S1. Press raw materials such as lead zirconate titanate (PZT) into a blank of the required prefabricated size and sinter it into a porcelain body.

S2. Conductive electrodes are provided on the surface of the porcelain body, which can be achieved through methods such as silver layer sintering, chemical deposition, and vacuum coating. At the same time, high-voltage polarization makes the ceramic have piezoelectric properties.

S3. The outer surface electrode 31 and the inner surface electrode 32 each lead out electronic wires or electrodes to facilitate connection with external electrodes. In addition, the surface of the electrode used to contact the oil-conducting cotton is coated with a glaze layer to prevent the electrode from being corroded by smoke oil.

As shown in Figure 9, the outer surface electrode 31 leads to a first electron wire 33 for electrical connection with the shell 26 of the atomizer core, and the inner surface electrode 32 leads to a second electron wire 34 for electrical connection with the electrode ring 12 of the atomizer core. Electrical connection.

An ultrasonic atomizer, as shown in Figures 1-3, includes a nozzle 1 mounted on a nozzle seat 15, a base 24, and a shell 26 connected between the nozzle seat 15 and the base 24; The nozzle seat 15 is connected to a connecting ring 16. The atomizing seat 10 is installed in the base 24. The above-mentioned atomizing core is provided between the atomizing seat 10 and the connecting ring 16, and the atomizing core is located in the outer shell 26 inside; an oil tank 17 is provided between the outer shell 26 and the atomizing core, and the oil guide cotton 18 is used to guide the e-liquid in the oil tank 17 to the inner wall surface of the atomizing ring 5 for atomization; the inhaler The hollow passages of the mouth 1 and the connecting ring 16 are connected to form a smoke oil mist passage; the atomization seat 10 and the base 24 are provided with air inlet passages connected to the outside world.

In order to prevent the condensed e-liquid from being inhaled by the user, the connecting ring 16 has a trumpet-shaped channel with an upper port diameter larger than a lower port diameter.

In order to prevent the user from blocking the air inlet and causing the e-liquid to be atomized and unable to be inhaled, an air storage cavity 27 is formed between the atomizer seat 10 and the base 24 .

The lower end of the base 24 is equipped with an electrode ring 13. The electrode ring 13 is electrically connected to the atomizing ring 5 through the atomizing core electrode ring 12 installed in the atomizing base 10, and the atomizing base 10 is connected to the atomizing ring 5. The atomizing core electrode rings 12 are separated by an atomizing core insulating ring 11 . In order to prevent electric leakage, an insulating ring 25 is installed around the electrode ring 13 .

There is an air inlet on the side wall of the base 24, and the air inlet is connected with the air inlet channel; preferably, the air inlet is equipped with an air adjusting ring 22 for adjusting the amount of air inlet.

In order to facilitate disassembly, cleaning, replacement or maintenance, the base 24 is removably and fixedly connected to the lower end of the housing 26 through the lower end cover 8; the lower end of the nozzle seat 15 is removably and fixedly connected to the upper end of the housing 26. ; Preferably, the detachable device adopts threaded connection.

Therefore, the ultrasonic atomizer of the present invention includes an ultrasonic atomizing ring. An ultrasonic atomizing ring is provided in the atomizing core. The inner hole surface of the ultrasonic atomizing ring is used to atomize smoke oil. When the ultrasonic atomizing ring is working, The surface of the inner hole atomizes the e-liquid to form smoke, that is, the smoke is sprayed in the radial direction of the atomized inner hole, and at the same time, the airflow passes through the inner hole to bring the smoke out. The direction of the airflow is perpendicular to the direction of ultrasonic smoke ejection, so that the smoke with light weight and small particles is brought to the nozzle by the airflow for the user to smoke, improving the taste of the smoke; at the same time, it can well prevent large particles from spraying directly upward and scalding the mouth. question;

As shown in Figure 10, the assembly steps of the atomizing core are: first insert the ultrasonic atomizing ring into the inner hole of the silicone sleeve so that the entire silicone wraps the atomizing ring, then insert the entire silicone sleeve assembly into the inner hole of the outer tube of the atomizing core, and then Insert the middle column of the oil-conducting cotton into the middle hole of the ultrasonic atomization ring, then insert the spring into the middle hole of the oil-conducting cotton, and install the insulating ring into the bottom hole of the outer casing of the atomizing core, so that the electronic wire of one pole of the atomizing ring is in the insulating ring. On the outside, clamp it with the inner wall of the inner casing, and the other pole is on the inner hole side of the insulating ring. Then install the electrode ring into the inner hole of the insulating ring, and clamp the electronic wire of one pole of the atomizing ring with the inner control wall of the insulating ring. Place the outer casing cover of the atomizing core on the surface of the oil-conducting cotton, and finally tighten the outer casing of the atomizing core to obtain the atomizing core.

The inner hole of the ultrasonic atomization ring is provided with an elastic member (spring). The spring is used to support the oil-conducting cotton so that the oil-conducting cotton contacts the inner wall of the inner hole of the ultrasonic atomizing ring to prevent the ultrasonic atomizing ring from contacting the oil-conducting cotton during operation. Poor contact may cause burning or self-damage.

The oil-conducting cotton absorbs the e-liquid in the e-liquid tank through the through hole on the outer sleeve of the atomizing core. The oil-conducting cotton bends along the atomizing core near the nozzle end and extends to the inner hole of the ultrasonic atomizing ring, effectively preventing e-liquid. The flow speed is too fast and affects the atomization effect.

An air storage chamber is provided at the bottom of the atomizer. The air inlet is provided on the side wall of the air storage chamber and is connected to the atmosphere to prevent the user from blocking the air inlet with fingers when using the e-cigarette. It can also be used to store the e-cigarette in the air. The e-liquid left out of the atomizer core prevents the e-liquid from leaking into the power supply part of the electronic cigarette and damaging the power supply.

The mouthpiece is equipped with a trumpet-shaped air pipe structure, which facilitates the air pipe to better flow the condensed e-liquid downwards, and can also prevent the user from inhaling the condensed e-liquid.

The spring is used to fix the oil-conducting cotton and ensure good contact between the oil-conducting cotton and the inner cavity surface of the ultrasonic atomization ring.

The inner wall of the ultrasonic atomization ring is the main electrode, which is used for ultrasonic atomization of e-liquid. In addition, the through structure can set the airflow as a downward air inlet. The airflow enters from the bottom, and then passes through the atomizing ring from bottom to top. Exhaling air upward can more fully bring out the smoke and make the smoke bigger.

The silicone sleeve plays a role in insulating heat, because the ultrasonic atomizing ring will generate a certain amount of heat when working. The silicone sleeve can isolate the heat and prevent the atomizer from becoming hot. In addition, the silicone sleeve serves to seal the e-liquid, preventing the outer surface of the atomizer ring from contacting the e-liquid and corroding the silver layer. The oil-conducting cotton is used to guide smoke oil from the oil inlet hole of the atomizing core to the inner annular surface of the atomizing ring.

Therefore, the smoke oil of the present invention enters the oil guide cotton through the oil inlet hole, guides the oil upward, passes above the silicone sleeve, and then guides the oil downward to the inner wall of the ultrasonic atomization ring. After several turns, it can be well prevented The atomizing ring leaks oil too quickly, causing the problem of oil soaking and no mist coming out.

In the present invention, the air path can enter and exit from the middle through hole of the atomization ring, so that the smoke can be taken away more fully, making the smoke larger.

The radial dimension of the present invention can be made smaller and the space utilization rate is higher.

Since the main atomization surface during atomization is on the inner surface of the atomization ring, the problem of large particles directly spraying upward and scalding the mouth can be effectively eliminated.

The piezoelectric ceramic atomizer of the present invention has a central annular structure, and the cross-section can be a circular structure, an oval structure as shown in Figure 15, or a square structure as shown in Figure 16.

An electronic cigarette includes a battery component and the above-mentioned ultrasonic atomizer; the battery component supplies power to the atomizing ring 5 of the ultrasonic atomizer.

Example 2

As shown in Figures 11-13, the main structure of the atomizer is the same as that of Embodiment 1. The inner hole of the atomization ring 5 is provided with a bracket that presses the oil-conducting cotton 18 against the atomization surface of the atomization ring 5. 28, so that the oil-conducting cotton 18 is in direct contact with the atomization surface of the atomization ring 5. The differences between this embodiment and Embodiment 1 are as follows:

1. The ultrasonic atomization ring adopts an oval middle pass shape.

2. The silicone sleeve 19 and the atomizer ring 5 only fit together at the beginning and the end. There is a space in the middle, which is helpful for isolating heat and preventing the temperature from being exported to the atomizer shell 26 and causing heat.

3. Use an oval sheet bracket 28 to fix the oil guide cotton 18 to ensure good contact with the inner wall of the atomization ring 6.

The content illustrated in the above embodiments should be understood that these embodiments are only used to illustrate the present invention more clearly, and are not used to limit the scope of the present invention. After reading the present invention, those skilled in the art will be familiar with various equivalent forms of the present invention. All modifications fall within the scope defined by the appended claims of this application.

Claims (23)

1. The atomizing core is characterized by comprising an atomizing ring (5) with a hollow channel, wherein the wall surface of an inner hole of the atomizing ring (5) is an atomizing surface for atomizing tobacco tar;

an oil guide structure is arranged at the inner hole wall surface and at one side of the outer wall surface of the atomizing ring (5) and used for guiding tobacco tar to the atomizing surface from one side of the outer wall surface of the atomizing ring (5); the oil guide structure is an oil guide cotton (18), and the oil guide cotton (18) extends upwards along one side of the outer wall surface of the atomizing ring (5) and bends to extend downwards along the inner hole wall surface of the atomizing ring (5); the oil guide structure is in direct contact with an atomization surface of the atomization ring (5);

the lower end of the atomizing ring (5) is communicated with the air outlet end of the air inlet channel, and the upper end of the atomizing ring (5) is communicated with the inlet of the smoke and oil mist outlet channel;

the outer wall surface of the atomizing ring (5) is separated from the oil guide structure positioned at one side of the outer wall surface of the atomizing ring (5) through an inner sleeve (7); an outer sleeve (4) is sleeved outside the oil guide structure on one side of the outer wall surface of the atomizing ring (5).

2. An atomizing core according to claim 1, characterized in that the inner bore of the atomizing ring (5) is provided with an elastic element or a bracket for pressing the oil guiding structure against the atomizing surface of the atomizing ring (5).

3. An atomizing core according to claim 2, characterized in that the elastic element is a spring (6).

4. An atomizing core according to claim 1, characterized in that the outer sleeve (4) is provided with holes or grooves for communicating the oil guiding structure with the oil sump (17).

5. An atomizing core according to claim 4, characterized in that the atomizing ring (5) is separated from the inner sleeve (7) by a silicone sleeve (19).

6. The atomizing core according to claim 5, characterized in that the top end and the bottom end of the silica gel sleeve (19) are in contact with the atomizing ring (5), and a heat insulation gap is formed between the middle part of the inner wall surface of the silica gel sleeve (19) and the middle part of the outer wall surface of the atomizing ring (5).

7. An atomizing core according to claim 5, characterized in that the atomizing ring (5) is a cylindrical structure made of piezoelectric ceramics.

8. An atomizing core according to claim 7, characterized in that the atomizing ring (5) has a circular, oval or square cross section perpendicular to its length direction.

9. The atomizing core of any one of claims 1 to 8, wherein the method of preparing the atomizing ring includes the steps of:

s1, pressing a blank into an atomization ring (5) and sintering the blank into a cylindrical ceramic body;

s2, arranging a conductive electrode on the surface of the porcelain body to enable the atomizing ring (5) to have piezoelectric performance;

s3, respectively leading out an electron wire or an electrode from the outer surface electrode of the atomizing ring (5) and the inner surface electrode of the atomizing ring (5), wherein the electron wire or the electrode is used for being electrically connected with an external electrode.

10. An atomizing core as set forth in claim 9, characterized in that, in step S3, a glaze layer is plated on the inner wall surface of the atomizing ring (5).

11. The atomizing core of claim 9, wherein in step S1, the blank is made of lead zirconate titanate.

12. The atomizing core of claim 9, wherein in step S2, the conductive electrode is provided on the surface of the ceramic body by firing, chemical deposition, or vacuum coating of a silver layer.

13. An ultrasonic atomizer comprises a suction nozzle (1) arranged on a suction nozzle seat (15), a base (24) and a shell (26) connected between the suction nozzle seat (15) and the base (24); the spray nozzle is characterized in that the suction nozzle seat (15) is connected with a connecting ring (16), an atomization seat (10) is arranged in the base (24), an atomization core as set forth in any one of claims 1-12 is arranged between the atomization seat (10) and the connecting ring (16), and the atomization core is positioned in the shell (26);

an oil bin (17) is arranged between the shell (26) and the atomizing core, and the oil guide structure is used for guiding tobacco tar in the oil bin (17) to the inner wall surface of the atomizing ring (5) for atomization; the suction nozzle (1) is communicated with the hollow channel of the connecting ring (16) to form a smoke and oil mist outlet channel; the atomizing base (10) and the base (24) are provided with air inlet channels communicated with the outside.

14. Ultrasonic atomizer according to claim 13, characterized in that the connecting ring (16) has a trumpet-shaped channel with an upper end diameter larger than a lower end diameter.

15. Ultrasonic atomizer according to claim 13, characterized in that an air storage chamber (27) is formed between the atomizing base (10) and the base (24).

16. Ultrasonic atomizer according to any one of claims 13 to 15, characterized in that the lower end of the base (24) is provided with an electrode ring (13), the electrode ring (13) is electrically connected with the atomizing ring (5) by means of an atomizing core electrode ring (12) arranged in the atomizing base (10), and the atomizing base (10) is separated from the atomizing core electrode ring (12) by means of an atomizing core insulating ring (11).

17. Ultrasonic atomizer according to claim 16, characterized in that the electrode ring (13) is sheathed with an insulating ring (25).

18. Ultrasonic atomizer according to any one of claims 13 to 15, characterized in that the base (24) has an air inlet opening in its side wall, which communicates with the air inlet channel.

19. The ultrasonic atomizer according to claim 18, wherein said air inlet is provided with an air-adjusting ring (22) for adjusting the amount of air intake.

20. The ultrasonic atomizer according to any one of claims 13 to 15, wherein the base (24) is detachably fixedly connected to the lower end of the housing (26) by a lower end cap (8); the lower end of the suction nozzle seat (15) is detachably fixedly connected with the upper end of the shell (26).

21. The ultrasonic atomizer of claim 20 wherein said removable is threadably connected.

22. Ultrasonic atomizer according to any one of claims 13 to 15, characterized in that the outer wall surface of the oil sump (17) is made of a transparent material, and the housing (26) is a cylindrical structure made of a transparent material or a hole is formed in the middle of the side wall of the housing (26).

23. An electronic cigarette comprises a battery assembly and an ultrasonic atomizer; characterized in that the ultrasonic atomizer is an ultrasonic atomizer according to any one of claims 13 to 22; the battery assembly supplies power to an atomizing ring (5) of the ultrasonic atomizer.