CN215455378U

CN215455378U - Electronic atomization device

Info

Publication number: CN215455378U
Application number: CN202120425946.8U
Authority: CN
Inventors: 郑伟林; 李光辉; 张超
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-01-11
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to an electronic atomization device which comprises a base and an airflow sensor, wherein the base comprises a sleeve, the sleeve comprises a bottom plate, a side plate and a boss, an installation cavity for installing the airflow sensor is formed by the side plate and the bottom plate in a surrounding mode, the boss is connected with the bottom plate and located in the installation cavity, an annular groove for gas circulation during suction is formed between the boss and the side plate, and the airflow sensor can sense air pressure change in the annular groove. Through setting up the ring channel, the groove can also be used for transmitting weeping and condensate, avoids weeping and condensate to adhere on the air current sensor and constitute the erosion to it to improve the life of air current sensor.

Description

Electronic atomization device

Technical Field

The utility model relates to the technical field of atomization, in particular to an electronic atomization device.

Background

The electronic atomization device is used for atomizing an atomization medium to form aerosol which can be sucked by a user, the electronic atomization device is generally provided with an induction channel and an airflow sensor, negative pressure is generated in the induction channel when the user sucks, the airflow sensor senses the existence of the negative pressure, so that the electronic atomization device works and atomizes the atomization medium, and when the user stops sucking and the negative pressure disappears, the airflow sensor feeds back a signal that the negative pressure disappears to stop working of the electronic atomization device. Therefore, the convenience of starting and closing the electronic atomization device can be greatly improved through the airflow sensor. However, with conventional electronic atomization devices, the airflow sensor is susceptible to erosion and damage from leakage.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem of prolonging the service life of the airflow sensor.

The utility model provides an electronic atomization device, includes base and air current sensor, the base includes the sleeve, the sleeve includes bottom plate, curb plate and boss, the curb plate with the bottom plate encloses to become to be used for the installation air current sensor's installation cavity, the boss with the bottom plate is connected and is located in the installation cavity, the boss with be formed with the ring channel that supplies the gas circulation when the suction between the curb plate, air current sensor can respond to the atmospheric pressure in the ring channel changes.

In one embodiment, the side plate is provided with an air inlet gap, and the air inlet gap is communicated with the annular groove; the annular groove is also communicated with at least one flow guide notch, and the flow guide notch is formed in the edge of the boss and communicated with the working surface of the airflow sensor.

In one embodiment, the diversion gap and the air inlet gap are spaced at a set angle along the circumferential direction of the sleeve.

In one embodiment, the air flow sensor further comprises a sealed shell at least partially accommodating the air flow sensor; at least part of the working surface of the airflow sensor is exposed out of the sealing shell and is communicated with the flow guide notch; the sealing shell is at least partially accommodated in the mounting cavity and is abutted against the boss.

In one embodiment, the base further comprises a connecting portion connected with the sleeve, the connecting portion encloses a flow guide hole communicated with the mounting cavity, and an orthographic projection of the flow guide hole along a central axis of the flow guide hole falls on the sealing shell.

In one embodiment, the central axis of the flow guide hole is coincident with the central axis of the electronic atomization device and perpendicular to the central axis of the mounting cavity.

In one embodiment, the sealing shell is provided with a containing cavity and a starting air channel gap, the sealing shell comprises a base plate which is abutted with the boss and defines part of the boundary of the containing cavity, and the starting air channel gap is formed in the base plate and communicated with the containing cavity and the annular groove.

In one embodiment, the sealing shell is provided with a containing groove with an opening facing the flow guide hole, the containing groove is communicated with the annular groove and the flow guide hole, and an orthographic projection of the flow guide hole along the central axis of the flow guide hole falls in the containing groove.

In one embodiment, the base further includes a bearing portion provided with a sinking groove, the connecting portion is arranged in the bearing portion in a penetrating manner, the diversion hole is communicated with the sinking groove, and the atomization core falls in the sinking groove along the orthographic projection of the central axis of the diversion hole.

In one embodiment, the sleeve, the connecting portion and the bearing portion are integrally formed.

One technical effect of one embodiment of the utility model is that: because an annular groove for the circulation of external gas during suction is formed between the boss and the side plate, the airflow sensor is positioned in the mounting cavity enclosed by the side plate and the bottom plate, so that the airflow sensor can sense the air pressure change in the annular groove. The annular groove can also be used for shunting leakage liquid and condensate liquid, so that the leakage liquid and the condensate liquid are prevented from being adhered to the airflow sensor to corrode the airflow sensor, and the service life of the airflow sensor is prolonged.

Drawings

Fig. 1 is a schematic perspective view of an electronic atomization device according to an embodiment;

FIG. 2 is a schematic sectional plan view of the electronic atomizer shown in FIG. 1;

fig. 3 is a schematic cross-sectional side view of the electronic atomizer shown in fig. 1;

fig. 4 is a schematic longitudinal perspective cross-sectional structural view of the electronic atomization device shown in fig. 1;

fig. 5 is a schematic partial perspective cross-sectional structure view of the electronic atomization device shown in fig. 1;

FIG. 6 is an exploded view of the partial structure of FIG. 5;

FIG. 7 is a schematic perspective cross-sectional view of FIG. 6;

fig. 8 is a schematic perspective sectional view of the base in the partial structure shown in fig. 5.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1, fig. 2 and fig. 3, an electronic atomizer 10 according to an embodiment of the present invention is provided with an airflow channel 20, where two ends of the airflow channel 20 are respectively an air inlet 21 and an air suction port 22 directly connected to the outside, when a user sucks on the air suction port 22, the outside air first enters the airflow channel 20 from the air inlet 21, and the outside air flowing inside the airflow channel 20 finally flows out from the air suction port 22 to be absorbed by the user, so that the airflow channel 20 actually represents the flow path of the air in the whole electronic atomizer 10. The electronic atomization device 10 comprises a base 100, an atomization core 200, an airflow sensor 300, a seal shell 400, a housing 500 and a top cover assembly 600, wherein the atomization core 200, the airflow sensor 300, the seal shell 400, the housing 500 and the top cover assembly 600 are all located in a space surrounded by the housing 500.

Referring to fig. 3 and 4, the atomizing core 200 is at least partially housed within the cap assembly 600 such that the atomizing core 200 is disposed on the cap assembly 600. The cap assembly 600 and the housing 500 enclose a reservoir 510, and the reservoir 510 is used for storing an atomizing medium of liquid, which is actually an aerosol generating substrate such as oil. The top cap assembly 600 is provided with a lower fluid passage 610, and the lower fluid passage 610 is communicated with the fluid storage chamber 510. The atomizing core 200 can include a base 210 and a heating element, the base 210 has an atomizing surface 211 arranged opposite to the liquid storage chamber 510, the heating element is arranged on the atomizing surface 211, when the heating element is powered on, the heating element converts electric energy into heat energy, so that the atomizing medium on the atomizing surface 211 and the atomizing medium soaked on the heating element are atomized to form aerosol which can be sucked by a user. The substrate 210 may be made of a porous ceramic material, so that the substrate 210 has a large number of micropores therein to form a certain porosity. Through the capillary action of the micropores, the substrate 210 can absorb the atomized medium flowing from the liquid storage chamber 510 into the lower liquid channel 610, so that the substrate 210 can perform the effects of transmitting and buffering the atomized medium, and the atomized medium entering the substrate 210 finally reaches the atomization surface 211 for atomization.

Referring to fig. 6, 7 and 8, the base 100 is disposed opposite to the atomizing core 200, such that an atomizing cavity 220 is formed between the base 100 and the atomizing core 200, and the atomizing surface 211 may define a partial boundary of the atomizing cavity 220. The aerosol generated by the atomization of the atomization medium by the atomization core 200 will be discharged first in the atomization chamber 220, and the atomization chamber 220 belongs to a part of the air flow channel 20, i.e. the air flow channel 20 comprises the atomization chamber 220.

In some embodiments, the base 100 includes the sleeve 110, the connecting portion 120 and the carrying portion 130, and the sleeve 110, the connecting portion 120 and the carrying portion 130 can be manufactured by injection molding, so that the three are integrally formed, thereby simplifying the mechanism of the whole base 100 and improving the processing efficiency of the base 100. Of course, the three parts can also be formed by adopting a split connection mode such as welding or clamping. The connecting portion 120 is connected between the sleeve 110 and the carrier portion 130, for example, the upper end of the connecting portion 120 is connected with the carrier portion 130, and the lower end of the connecting portion 120 is connected with the sleeve 110, so that the atomizing core 200 and the carrier portion 130 form the atomizing chamber 220 therebetween.

The sleeve 110 encloses a mounting cavity 111, which mounting cavity 111 may actually be an open cavity. The central axis of the mounting cavity 111 may be perpendicular to the central axis of the whole electronic atomization device 10, i.e. the central axis of the mounting cavity 111 is horizontally arranged. The sleeve 110 includes a bottom plate 112, a side plate 113 and a boss 114, the side plate 113 is disposed around the periphery of the bottom plate 112, so that the side plate 113 and the bottom plate 112 jointly enclose the mounting cavity 111, the boss 114 is located in the mounting cavity 111 and is substantially disc-shaped, the boss 114 is connected with the bottom plate 112, the boss 114 protrudes a certain height relative to the bottom plate 112 along the extending direction of the central axis of the mounting cavity 111, so that an annular groove 115 is formed between the boss 114 and the side plate 113, the annular groove 115 actually belongs to a part of the mounting cavity 111, and obviously, the annular groove 115 is disposed around the boss 114.

The sealing shell 400 may be made of a flexible rubber or silicone material, and the sealing shell 400 is at least partially received in the receiving cavity 420, for example, the sealing shell 400 may be completely received in the receiving cavity 420. The bottom surface of the sealing shell 400 abuts against the boss 114, and the side surface of the sealing shell 400 abuts against the side plate 113, so that the sealing shell 400 has a covering and certain hiding effect on the annular groove 115. The annular groove 115 is actually the remaining space of the installation cavity 111 not filled by the seal housing 400, and the annular groove 115 is communicated with the guide hole 121. The sealing shell 400 is internally provided with an accommodating cavity 420 and a starting air passage notch 430, central axes of the accommodating cavity 420 and the starting air passage notch 430 both extend along a horizontal direction, openings of the accommodating cavity 420 and the mounting cavity 111 face the same direction, a flow guide notch 114a is formed in a position, far away from the flow guide hole 121, of the edge of the boss 114, the flow guide notch 114a is communicated with the annular groove 115, at least part of the airflow sensor 300 is accommodated in the accommodating cavity 420, and at least part of a working surface of the airflow sensor 300 is exposed out of the accommodating cavity 420 of the sealing shell 400 and communicated with the flow guide notch 114 a. The sealing shell 400 includes a base plate 440, the base plate 440 is directly abutted against the boss 114, the starting air passage notch 430 is opened on the base plate 440, and when the base plate 440 of the sealing shell 400 is abutted against the boss 114, the starting air passage notch 430 is communicated with the accommodating cavity 420 and the annular groove 115 simultaneously. The side plate 113 is provided with an air inlet gap 113a, the air inlet gap 113a is communicated with the annular groove 115, the air inlet gap 113a and the diversion gap 114a are arranged at a set angle along the circumferential direction of the sleeve 110, in other words, the air inlet gap 113a and the diversion gap 114a are arranged along the circumferential direction of the sleeve 110 in a staggered manner, so that the air inlet gap 113a is prevented from facing the diversion gap 114 a. By providing the sealing case 400, the sealing case 400 can protect the airflow sensor 300. It is apparent that the atomizing face 211 of the atomizing core 200 is disposed downward toward the airflow sensor 300. It can be understood that the above embodiments are directed to achieving communication of the diversion gap with the working face of the airflow sensor; and also in that the air flow sensor is in communication with the air flow channel.

In some embodiments, the sealing housing 400 is further provided with a receiving groove 410, the receiving groove 410 is formed by recessing the surface of the sealing housing 400 in a vertical direction by a certain depth, such that the opening of the receiving groove 410 is disposed toward the flow guide hole 121, the receiving groove 410 is communicated with the annular groove 115 and the flow guide hole 121, and when a user sucks air, the external air enters the atomizing chamber 220 through the air inlet gap 113a, the annular groove 115, the receiving groove 410, and the flow guide hole 121 in sequence. Therefore, the air inlet gap 113a, the annular groove 115, the accommodating groove 410 and the guiding hole 121 all belong to a part of the air flow channel 20, i.e., the air flow channel 20 includes the air inlet gap 113a, the annular groove 115, the accommodating groove 410 and the guiding hole 121. The orthographic projection of the flow guide hole 121 along the central axis thereof falls in the containing groove 410.

Referring to fig. 5, 6 and 7, in some embodiments, the bearing portion 130 is provided with a sinking groove 131, the sinking groove 131 may be formed by sinking the bearing portion 130 to a certain depth toward the surface of the atomizing core 200, the sinking groove 131 forms a part of the atomizing cavity 220, the connecting portion 120 is disposed in the bearing portion 130 in a penetrating manner, the guiding hole 121 and the sinking groove 131 are communicated with each other, and the orthographic projection of the atomizing core 200 falls within the sinking groove 131. The bearing part 130 has a bottom wall surface 132, and the bottom wall surface 132 is disposed upward toward the atomizing surface 211 of the atomizing core 200 such that the bottom wall surface 132 and the atomizing surface 211 are disposed opposite to each other, and the bottom wall surface 132 defines a partial boundary of the sink 131. The connecting portion 120 further includes a protrusion 122, the protrusion 122 is located in the sinking groove 131, the protrusion 122 protrudes upward to a certain height relative to the bottom wall 132, and the guiding hole 121 penetrates through the protrusion 122. The end of the guiding hole 121 is formed with an air outlet 121a communicating with the sinking groove 131 on the protruding portion 122, the air outlet 121a is located on an end surface 122a of the protruding portion 122, the end surface 122a is disposed upward toward the atomizing surface 211, and obviously, the end surface 122a is located above the bottom wall 132 and is higher than the bottom wall 132 by a certain height.

The housing 500 is provided with an air suction hole 520, the air suction hole 520 belongs to a part of the air flow channel 20, that is, the air flow channel 20 includes the air suction hole 520, and the upper end of the air suction hole 520 is the air suction port 22. When the sub-inlet 22 is sucked by the user, the external air passes through the air inlet 21, the air inlet gap 113a, the annular groove 115, the receiving groove 410, the guide hole 121, the sink groove 131 (the atomizing chamber 220), and the air suction hole 520 in sequence to be sucked by the user, and the dotted arrows in fig. 3 and 4 represent an air flow path, so that the air flow path 20 includes the air inlet gap 113a, the annular groove 115, the receiving groove 410, the guide hole 121, the sink groove 131, and the air suction hole 520.

Because the seal shell 400 is arranged in the mounting cavity 111 of the sleeve 110, the airflow sensor 300 is arranged in the seal shell 400, the starting air passage notch 430 is directly communicated with the diversion notch 114a, when a user sucks at the suction opening 22, negative pressure is generated in the air inlet notch 113a and the annular groove 115, so that the airflow sensor 300 can directly sense the existence of the negative pressure in the air inlet notch 113a and the annular groove 115 through the starting air passage notch 430, and the atomizing core 200 is controlled to be started to atomize the atomizing medium. It is understood that the activation of the airflow sensor 300 is not limited to negative pressure, and may be other pressure variations. Therefore, an additional sensing channel independent from the air flow channel 20 can be avoided, thereby simplifying the structure and manufacturing process of the electronic atomization device 10.

Meanwhile, the orthographic projection of the atomizing core 200 in the vertical direction falls in the sinking groove 131, leaked liquid leaked from the atomizing core 200 can be stored in the sinking groove 131, meanwhile, the aerosol staying in the atomizing cavity 220 forms condensate after being cooled, and the condensate can also be stored in the sinking groove 131, so that the sinking groove 131 can play a role in storing the leaked liquid and the condensate. And, the air outlet 121a of the guiding hole 121 is located on the end surface 122a of the protruding portion 122, and when the liquid level of the leakage liquid and the condensate in the sink 131 is not flush with the end surface 122a, the leakage liquid and the condensate are difficult to enter the guiding hole 121. Certainly, when the electronic atomization device 10 is inclined or the liquid level of the leaking liquid and the condensate in the sinking groove 131 is flush with the end surface 122a, the leaking liquid and the condensate will enter the diversion hole 121, and at this time, because the orthographic projection of the diversion hole 121 in the vertical direction falls in the accommodating groove 410 formed in the sealing shell 400, the leaking liquid and the condensate flowing out of the diversion hole 121 can be all gathered in the accommodating groove 410, so that the leaking liquid and the condensate are prevented from flowing randomly on the surface of the sealing shell 400 to corrode the airflow sensor 300 therein, and the airflow sensor 300 is prevented from being damaged to prolong the service life thereof. The leakage liquid and the condensate liquid collected in the receiving groove 410 further flow into the annular groove 115, and due to the isolation function of the boss 114, the leakage liquid and the condensate liquid in the annular groove 115 are difficult to enter the receiving cavity 420 through the diversion notch 114a and the starting air passage notch 430 to erode the airflow sensor 300. Therefore, the annular groove 115 can have a good protection effect on the airflow sensor 300, so that the airflow sensor 300 is prevented from being corroded by leakage liquid and condensate liquid, and the service life of the airflow sensor 300 is prolonged. Furthermore, the air inlet gap 113a and the flow guide gap 114a are arranged along the circumferential direction of the sleeve 110 in a staggered manner, so that leakage liquid and condensate liquid in the annular groove 115 are difficult to leak through the air inlet gap 113 a; in addition, the backflow gas with aerosol is easy to be directly discharged from the air inlet notch 113a, and is not contacted with the airflow sensor through the flow guide notch 114a, so that the airflow sensor is prevented from being corroded.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides an electronic atomization device, its characterized in that, includes base and air current sensor, the base includes the sleeve, the sleeve includes bottom plate, curb plate and boss, the curb plate with the bottom plate encloses into and is used for the installation air current sensor's installation cavity, the boss with the bottom plate is connected and is located in the installation cavity, the boss with be formed with the ring channel that supplies the gas circulation when the suction between the curb plate, air current sensor can respond to the atmospheric pressure change in the ring channel.

2. The electronic atomization device of claim 1, wherein the side plate is provided with an air inlet gap, and the air inlet gap is communicated with the annular groove; the annular groove is also communicated with at least one flow guide notch, and the flow guide notch is formed in the edge of the boss and communicated with the working surface of the airflow sensor.

3. The electronic atomizer device of claim 2, wherein said flow directing notch is angularly spaced from said air inlet notch along a circumference of said sleeve.

4. The electronic atomization device of claim 2 further comprising a sealed housing at least partially housing the airflow sensor; at least part of the working surface of the airflow sensor is exposed out of the sealing shell and is communicated with the flow guide notch; the sealing shell is at least partially accommodated in the mounting cavity and is abutted against the boss.

5. The electronic atomization device of claim 4, wherein the base further comprises a connecting portion connected to the sleeve, the connecting portion enclosing a flow guide hole in communication with the mounting cavity, the flow guide hole falling on the seal housing along an orthographic projection of a central axis of the flow guide hole.

6. The electronic atomization device of claim 5, wherein a central axis of the flow guide hole coincides with a central axis of the electronic atomization device and is perpendicular to a central axis of the mounting cavity.

7. The electronic atomizer device according to claim 4, wherein the sealing housing defines a receiving chamber and a start air passage opening, the sealing housing includes a base plate abutting against the boss and defining a boundary of the receiving chamber, and the start air passage opening is defined in the base plate and communicates the receiving chamber and the annular groove.

8. The electronic atomizing device according to claim 5, wherein the sealing housing is provided with a receiving groove opening toward the guide hole, the receiving groove communicates with the annular groove and the guide hole, and an orthographic projection of the guide hole along a central axis of the guide hole falls in the receiving groove.

9. The electronic atomization device of claim 5, wherein the base further comprises a bearing portion provided with a sinking groove, the connecting portion is arranged in the bearing portion in a penetrating manner, the diversion hole is communicated with the sinking groove, and an orthographic projection of the atomization core along a central axis of the diversion hole falls in the sinking groove.

10. The electronic atomizer device of claim 9, wherein said sleeve, said connecting portion, and said carrier portion are integrally formed.