CN111772237A

CN111772237A - Atomizer and electronic atomization device

Info

Publication number: CN111772237A
Application number: CN202010543159.3A
Authority: CN
Inventors: 文治华
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2020-10-16

Abstract

The invention relates to an atomizer and an electronic atomization device, wherein the atomizer is applied to the electronic atomization device for a user to suck, and comprises: and the airflow channel comprises an air inlet and an air outlet. And the atomizing core is at least partially positioned in the airflow channel. The air inlet hole penetrates through the base; the check valve comprises a baffle plate elastically connected with the base; the baffle plate has a closed state and an open state; under normal conditions, the blocking piece is in a closed state, and the blocking piece blocks the air inlet; when suction occurs at the air outlet, the flap is in an open state, allowing air flow therethrough. The base and/or the blocking piece are/is provided with a concave cavity, when the blocking piece is in a closed state, the surfaces of the base and the blocking piece which are mutually abutted are contact surfaces, at least one part of the concave cavity is positioned on the contact surfaces, and the concave cavity is communicated with the air inlet hole to form a stress weak point. This can improve the sensitivity of the nebulizer to user suction.

Description

Atomizer and electronic atomization device

Technical Field

The present invention relates to the field of electronic atomization technologies, and in particular, to an atomizer and an electronic atomization apparatus including the same.

Background

The smoke generated by burning tobacco contains dozens of carcinogens, such as tar, which can cause great harm to human health, and the smoke diffuses in the air to form second-hand smoke, so that the surrounding people can also hurt the body after inhaling the smoke, and therefore, smoking is prohibited in most public places. The electronic atomization device has the appearance and taste similar to those of a common cigarette, but generally does not contain tar, suspended particles and other harmful ingredients in the cigarette, so the electronic atomization device is widely used as a substitute of the cigarette.

The electronic atomization device comprises an atomizer and a power supply assembly, wherein the power supply assembly is used for providing electric energy for the atomizer, the atomizer converts the electric energy into heat energy, and oil in the atomizer absorbs the heat and then is atomized to form smoke which can be sucked by a user. However, in the conventional electronic atomizer, in order to prevent the oil and the condensate formed after cooling the mist in the liquid storage chamber of the atomizer from leaking from the atomizer and prevent the leaked oil and condensate from having an erosion effect on the power supply assembly, a valve is usually disposed in the atomizer to prevent the leakage of the oil and the condensate. However, the resistance to valve opening is large, resulting in a poor user experience with difficulty pumping.

Disclosure of Invention

One technical problem solved by the present invention is how to improve the sensitivity of the nebulizer to the user's puff.

An atomizer for use in an electronic atomizer device for inhalation by a user, said atomizer comprising:

the air flow channel comprises an air inlet and an air outlet;

an atomizing core, at least a portion of which is located within the airflow channel;

the air inlet hole penetrates through the base; and

the check valve comprises a baffle plate elastically connected with the base; the baffle plate has a closed state and an open state; under the normal condition, the blocking piece is in a closed state, and the blocking piece blocks the air inlet; when suction occurs at the air outlet, the baffle is in an open state, and airflow is allowed to pass through;

the base and/or the blocking piece are/is provided with a concave cavity, when the blocking piece is in a closed state, the surfaces of the base and the blocking piece which are mutually abutted are contact surfaces, at least one part of the concave cavity is positioned on the contact surfaces, and the concave cavity is communicated with the air inlet to form a stress weak point.

In one embodiment, the cavity cuts off the contact surface of the base and/or the contact surface of the baffle plate, and the contact surfaces are prevented from being closed to form a continuous ring shape along the circumferential direction of the air inlet hole.

In one embodiment, the surface of the base facing the atomizing core is recessed to form an annular sunken groove, the annular sunken groove enables a part of the base to form a supporting cylinder, the air inlet hole penetrates through the supporting cylinder, a contact surface of the base is a first contact surface, the first contact surface is located on the supporting cylinder, and the cavity is formed in the first contact surface.

In one embodiment, the supporting cylinder further has a first spacing surface and a second spacing surface, the first contact surface is connected between the first spacing surface and the second spacing surface, and the first spacing surface and the second spacing surface form a set taper angle and are both positioned on the side of the first contact surface away from the baffle plate; when the blocking piece covers the air inlet hole, the first contact surface is abutted to the blocking piece, and the first and second spacing surfaces are arranged at intervals with the blocking piece.

In one embodiment, the taper angle ranges from 20 ° to 135 °, and the first contact surface width ranges from 0.2mm to 1 mm.

In one embodiment, the cavity penetrates through the first and second partition surfaces simultaneously to communicate the annular sinking groove and the air inlet hole.

In one embodiment, the contact surface is a rough surface with a roughness Ra of more than or equal to 1.6 μm.

In one embodiment, the depth dimension of the cavity is 0.01mm to 0.5 mm.

In one embodiment, the cross-sectional profile of the cavity is circular, polygonal or elliptical; the contact surface is circular ring-shaped, runway-shaped or rectangular.

In one embodiment, the number of the cavities is multiple, and the cavities are distributed at intervals along the circumferential direction of the air inlet hole.

In one of them embodiment, the check valve still includes stiff end and elastic arm, the elastic arm is connected the stiff end with between the separation blade, the stiff end with base fixed connection, the separation blade can be followed the elastic arm is relative the stiff end swing.

In one embodiment, the elastic arm has a first curved surface and a second curved surface which are bent in opposite directions, and the distance between the first curved surface and the second curved surface decreases from the edge part of the elastic arm to the middle part of the elastic arm.

In one embodiment, the thickness of the resilient arm is minimized relative to the fixed end and the flap.

In one embodiment, the thickness of the elastic arm is 0.1 mm-0.8 mm, the length of the elastic arm is 0.02 mm-2 mm, and the width of the elastic arm is 0.5 mm-3 mm.

In one embodiment, the edge of the elastic arm is kept at a set distance from the fixed end and the edge of the blocking piece along the width direction of the elastic arm. .

In one embodiment, the fixing end is provided with a through hole extending along the thickness direction of the fixing end, and the through hole is used for installing the fixing end.

In one embodiment, when the baffle plate opens the air inlet hole, the maximum distance between the baffle plate and the contact surface is 0.3 mm-1.5 mm.

In one embodiment, when the air pressure difference formed by the suction action on the two opposite sides of the baffle is greater than a threshold pressure, the baffle is in an open state, and the threshold pressure is 10-100 Pa.

In one embodiment, the threshold pressure is between 30Pa and 70 Pa.

An electronic atomization device comprises a power supply assembly and the atomizer, wherein the power supply assembly is provided with an accommodating cavity capable of accommodating the atomizer.

In one embodiment, the atomizer is removably coupled to the power supply assembly.

One technical effect of one embodiment of the invention is that: because at least one part of the cavity is positioned on the contact surface, at the notch formed by the cavity, the part of the baffle sheet corresponding to the cavity is not in actual adhering relation with the base, and then the part of the baffle sheet adhered with condensate and overflowed oil is not adhered to the base. Therefore, the part of the baffle corresponding to the cavity is easier to separate from the base than the other part of the baffle actually attached to the base, so that the part of the baffle forms a stress weak point, and then the whole baffle is separated from the base before the part of the baffle is close to the stress weak point and forms a tearing gap with the base. When outside air enters the tearing gap from the air inlet, the bonding force of condensate and overflowed oil can be greatly weakened. Finally, the resistance of the whole baffle plate leaving the base is reduced, the baffle plate is ensured to be quickly separated from the base under the action of smaller pressure difference, the blocking feeling or the breaking feeling generated by the fact that the baffle plate is difficult to separate from the base due to over-small suction force is prevented, and the response sensitivity of the atomizer to the suction of a user is further improved.

Drawings

Fig. 1 is a schematic perspective view of an atomizer according to an embodiment;

FIG. 2 is a schematic perspective cross-sectional view of the atomizer shown in FIG. 1;

FIG. 3 is a schematic sectional plan view of the atomizer shown in FIG. 1 with the baffle plate covering the air inlet hole;

FIG. 4 is a schematic sectional plan view of the atomizer shown in FIG. 1 with the shutter opening the inlet hole;

FIG. 5 is a schematic illustration in partial perspective cross-sectional view of a first exemplary base of the atomizer shown in FIG. 1;

FIG. 6 is a schematic illustration in partial plan cross-sectional configuration of a first exemplary base of the atomizer shown in FIG. 1;

FIG. 7 is a schematic, partially cross-sectional view of a second example base of the atomizer of FIG. 1 as it is squeezed against a baffle;

FIG. 8 is a schematic, partially cross-sectional view of the second example base of the atomizer of FIG. 1 shown separated from the baffle;

FIG. 9 is a schematic, partially cross-sectional view of the third example base of the atomizer of FIG. 1 shown separated from the baffle;

FIG. 10 is a schematic diagram of a partial top view of a fourth exemplary base of the atomizer shown in FIG. 1;

FIG. 11 is a perspective view of a baffle plate of the atomizer shown in FIG. 1;

fig. 12 is a schematic perspective sectional view of the baffle plate shown in fig. 11.

Detailed Description

To facilitate an understanding of the invention, the invention 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 and 2, an electronic atomization device according to an embodiment of the present invention includes an atomizer 10 and a power supply assembly, where the power supply assembly is configured to provide electric energy to the atomizer 10, the atomizer 10 converts the electric energy into heat energy, and oil stored in a liquid storage chamber of the atomizer 10 absorbs the heat energy to atomize the oil into smoke that can be sucked by a user. The power supply assembly is provided with an accommodating cavity, a part of the atomizer 10 is inserted and accommodated in the accommodating cavity, and the atomizer 10 is detachably connected with the power supply assembly. Of course, the atomizer 10 and the power supply assembly may also be in a non-removable connected relationship.

In some embodiments, an airflow channel 400 is formed within the atomizer 10, the airflow channel 400 extending through the bottom surface and the top surface of the atomizer 10, the opening of the airflow channel 400 on the top surface being an air outlet 420. When a user performs a suction action at the air outlet 420, the external air is input into the atomizer 10 from the bottom of the air flow channel 400, and the smoke generated by atomization in the atomizer 10 is carried by the external air and output from the air outlet 420 for the user to suck. The atomizer 10 includes an atomizing cartridge 100, a base 200, and a check valve 300.

Referring to fig. 2 and 3, the atomizing core 100 is electrically connected to the power supply assembly through an electrode, the atomizing core 100 may include a porous ceramic body 110 and a heating wire 120, the porous ceramic body 110 is substantially a cylindrical structure and is transversely disposed, and two ends of the porous ceramic body 110 may draw oil from an oil storage cavity of the atomizer 10. The middle of the porous ceramic body 110 is positioned in the air flow passage 400, and the heating wire 120 is wound around the middle of the porous ceramic body 110, and it is apparent that the heating wire 120 is also positioned in the air flow passage 400. When the oil is delivered to the middle portion from the end portion of the porous ceramic body 110 by capillary action, the heating wire 120 generates heat and atomizes the oil to form smoke that can be drawn by a user.

Referring to fig. 3 and 4, the base 200 is located at the bottom of the atomizer 10, and the air flow channel 400 includes an air inlet 410 at the lower end thereof, the air inlet 410 is opened on the base 200, and the external air can be input into the atomizer 10 through the air inlet 410. The base 200 has an upper surface 210, the upper surface 210 is disposed toward the atomizing core 100, and the check valve 300 includes a flap 310, and the flap 310 is elastically connected to the base 200. Flap 310 has a lower surface 311. The baffle 310 is located between the base 200 and the atomizing core 100 along the extending direction of the air flow channel 400, that is, the baffle 310 is located below the atomizing core 100 and above the base 200.

Under normal conditions of transportation, storage and the like, the flap 310 is in a closed state under the action of various resistances such as the elasticity and gravity of the flap 310, and the flap 310 covers the air inlet hole 410. When a user performs a suction action at the air outlet 420, an air pressure difference is formed between the upper side and the lower side of the baffle 310, the air pressure difference overcomes the resistance of the baffle 310 and is far away from the air inlet 410, and the baffle 310 is in an open state, so that the air flow in the air inlet 410 is allowed to enter the air outlet 420 through the other part of the air flow channel 400. When the flap 310 is in the closed state, the upper surface 210 of the base 200 and the lower surface 311 of the flap 310 are disposed opposite to each other, and at the same time, the upper surface 210 and/or the lower surface 311 reduce the contact area between the flap 310 and the base 200 by partially protruding or partially recessing.

Referring to fig. 3 and 4, in the extending direction of the airflow channel 400, when the air pressure difference between the upper side and the lower side of the blocking piece 310 is smaller than the threshold pressure, the blocking piece 310 covers the air inlet 410. When the air pressure difference between the two opposite sides of the flap 310 is greater than the threshold pressure, the flap 310 opens the air inlet hole 410. For example, when a user sucks on the air outlet 420, the air pressure in the air flow channel 400 above the flap 310 is lower than the air pressure in the air flow channel 400 (the air inlet 410) below the flap 310, and the air pressure generated by the air pressure difference can overcome the resistance such as gravity and elasticity of the flap 310 to drive the flap 310 to move upwards, so that the flap 310 leaves the base 200 to open the air inlet 410, and the air in the air inlet 410 can enter the air flow channel 400 above the flap 310 to carry smoke for the user to suck. When the user stops sucking at the air outlet 420, the air pressure in the air flow passage 400 above the flap 310 and the air pressure in the air flow passage 400 (the air inlet 410) below the flap 310 are both atmospheric pressure, so that the air pressure difference acting on the flap 310 is eliminated, and the flap 310 is re-loaded on the base 200 under the action of gravity, elasticity and the like to cover the air inlet 410.

When the blocking piece 310 covers the air inlet hole 410, on one hand, smoke can not flow back to the power supply component through the air inlet hole 410, and the corrosion effect of condensate formed by cooling the smoke on the power supply component is avoided. On the other hand, the oil overflowing from the atomizing core 100 can be blocked, and the oil is prevented from leaking to the power supply assembly from the air inlet 410 to form an erosion effect. Of course, the lower surface 311 of the baffle 310 will inevitably be adhered with condensate formed by the mist and oil overflowing from the atomizing core 100. Under the condition that the baffle 310 is in contact with the base 200, the condensate and the overflowing oil will adhere to the baffle 310 and the base 200, if the contact area between the baffle 310 and the base 200 is large, the condensate and the overflowing oil adhering between the baffle 310 and the base 200 are increased, and the adhesion force between the baffle 310 and the base 200 is large. When the suction force of the user is small, the air pressure difference formed on the two sides of the blocking piece 310 cannot overcome the gravity, the elasticity and the bonding force to open the air inlet hole 410 of the blocking piece 310, so that the user cannot suck the smoke, and therefore the user must suck the smoke with great force to form a large air pressure difference, so that the blocking piece 310 opens the air inlet hole 410 to suck the smoke smoothly. Therefore, when the contact area of the flap 310 with the base 200 is large, the sensitivity of the nebulizer 10 to the user's inhalation is affected.

In some embodiments, for example, referring to fig. 4, 5 and 6, the upper surface 210 of the base 200 is recessed to form an annular sinking groove 222, a portion of the base 200 forms the supporting cylinder 202 by the cutting action of the annular sinking groove 222, the air inlet hole 410 passes through the supporting cylinder 202, and the blocking piece 310 can press against the supporting cylinder 202 to cover the air inlet hole 410. When the baffle 310 covers the air inlet 410, the surfaces of the base 200 and the baffle 310 which are pressed against each other are contact surfaces, that is, the contact surface of the base 200 and the contact surface of the baffle 310 are attached to each other, the contact surface of the base 200 is the first contact surface 212, and the first contact surface 212 is located on the support cylinder 202.

Specifically, the support cylinder 202 has a first contact surface 212, a first spacing surface 211a, and a second spacing surface 211b, the first spacing surface 211a defining part of the boundary of the intake hole 410. The first contact surface 212 may have a racetrack shape, but of course, the first contact surface 212 may also have a circular or rectangular shape, etc. The first contact surface 212 is horizontally disposed, the first spacing surface 211a and the second spacing surface 211b are both obliquely disposed to form a certain included angle with the first contact surface 212, the first contact surface 212 is connected between the upper ends of the first spacing surface 211a and the second spacing surface 211b, and the first spacing surface 211a and the second spacing surface 211b are both located on a side (i.e., a lower side) of the first contact surface 212 far away from the baffle 310, so that the first spacing surface 211a, the second spacing surface 211b and the first contact surface 212 enclose a tapered structure. The included angle between the first and

second spacing surfaces

211a and 211b is a taper angle α of the taper structure, and the taper angle α ranges from 20 ° to 135 °, for example, the specific value of the taper angle α may be 20 °, 100 °, or 135 °. The width W of the first contact surface 212 ranges from 0.2mm to 1mm, and for example, the width W may be 0.2mm, 0.5mm, or 1 mm.

Referring to fig. 3 and 4, when the baffle 310 is carried on the base 200 to cover the air inlet 410, the baffle 310 is pressed against the first contact surface 212, i.e. the lower surface 311 of the baffle 310 is attached to the first contact surface 212. The first spacing surface 211a has a gap 230 with a lower surface 311 of the flap 310, and the second spacing surface 211b also has a gap 230 with the lower surface 311 of the flap 310, such that neither the first spacing surface 211a nor the second spacing surface 211b is in an adhering relationship with the lower surface 311 of the flap 310. When the flap 310 is separated from the base 200 by the air pressure difference to open the air inlet hole 410, the lower surface 311 of the flap 310 is separated from the first contact surface 212 to release the attachment relation with the first contact surface 212.

In fact, if the annular sinking groove 222 is not formed on the upper surface 210 of the base 200, the contact area between the blocking plate 310 and the base 200 is large. By providing the annular recessed groove 222 on the upper surface 210, the baffle 310 is attached to the surface of the support cylinder 202 facing the atomizing core 100, and the surface of the support cylinder 202 facing the atomizing core 100 can be seen as a part of the upper surface 210. Therefore, even if the surface of the support cylinder 202 facing the atomizing core 100 is a horizontal surface, the contact area between the baffle 310 and the base 200 can be reduced by attaching the baffle 310 to the surface of the support cylinder 202 facing the atomizing core 100. Further, if both end portions of the horizontal plane are recessed downward, the first and

second spacing surfaces

211a and 211b may be regarded as being formed by both end portions of the horizontal plane being recessed downward, and a middle portion of the horizontal plane being not recessed downward but being disposed horizontally, that is, the first contact surface 212 may be regarded as being formed by a middle portion of the horizontal plane. When the baffle 310 covers the air inlet hole 410, the first spacing surface 211a and the second spacing surface 211b are not in an attaching relationship with the lower surface 311 of the baffle 310, and the lower surface 311 of the baffle 310 is only attached to the first contact surface 212, so that the contact area between the baffle 310 and the base 200 is further reduced, a smaller adhesive force is provided between the baffle 310 and the base 200, and the smaller air pressure difference formed at the two sides of the baffle 310 is ensured to overcome gravity, elasticity and adhesive force to open the air inlet hole 410 by the baffle 310, so that a user can suck smoke by using a smaller suction force, and a pause or breakage feeling caused by the fact that the baffle 310 is difficult to separate from the base 200 due to the too small suction force is prevented, and finally the response sensitivity of the atomizer 10 to the suction of the user is improved.

For another example, referring to fig. 7 and 8, the upper surface 210 of the base 200 has a large area, and the upper surface 210 is horizontally disposed. The base 200 includes a boss 201, and the boss 201 is disposed on the upper surface 210 and protrudes toward the atomizing core 100 by a set height relative to the upper surface 210. When the baffle 310 covers the air inlet hole 410, the baffle 310 is attached to the surface of the boss 201 facing the atomizing core 100, so that the surface of the boss 201 facing the atomizing core 100 is the contact surface 212. The part of the upper surface 210 not provided with the boss 201 is a spacing surface 211, and a gap 230 is formed between the spacing surface 211 and the baffle 310, so that the baffle 310 cannot be attached to the spacing surface 211. Therefore, when the boss 201 is disposed on the upper surface 210, the whole upper surface 210 can be effectively prevented from being attached to the baffle 310, so that the baffle 310 is only attached to the contact surface 212 with a relatively small area on the boss 201, and the attachment area and the adhesive force between the baffle 310 and the base 200 can also be reduced, so that the user can suck smoke with a small suction force, and the response sensitivity of the atomizer 10 to the suction of the user is improved.

For another example, referring to fig. 9, the upper surface 210 of the base 200 has a larger area, and the upper surface 210 is horizontally disposed. The blocking sheet 310 includes a protruding strip 312, and the protruding strip 312 is disposed on the lower surface 311 and protrudes a set length toward the base 200 relative to the lower surface 311. When the blocking piece 310 covers the air inlet 410, the portion of the upper surface 210 attached to the protruding strip 312 is the contact surface 212, the portion of the upper surface 210 not pressed against the protruding strip 312 is the spacing surface 211, and a gap 230 is formed between the spacing surface 211 and the portion of the lower surface 311 not provided with the protruding strip 312. Therefore, when the protruding strips 312 are provided on the lower surface 311 of the baffle 310, the whole upper surface 210 can be prevented from being attached to the baffle 310, so that the baffle 310 is only attached to the contact surface 212 with a relatively small area, the attachment area and the adhesive force between the baffle 310 and the base 200 are reduced, the user can suck the smoke with a small suction force, and the response sensitivity of the atomizer 10 to the user suction is improved.

In some embodiments, referring to fig. 10, the upper surface 210 of the base 200 is a horizontal plane, a portion of the upper surface 210 is recessed downward to form a plurality of counter bores 221, the counter bores 221 are distributed uniformly and at intervals along the circumferential direction of the air inlet 410, when the baffle 310 is pressed against the base 200, the portion of the upper surface 210 that is not recessed is attached to the baffle 310, so as to ensure that only a portion of the upper surface 210 is finally attached to the baffle 310, and thus, the attachment area and the adhesive force between the baffle 310 and the base 200 can be reduced, so that a user can perform smoke suction with a small suction force, and the response sensitivity of the atomizer 10 to the suction of the user is improved. Of course, the counterbore 221 may also be provided in the lower surface 311 of the flap 310.

In some embodiments, referring to fig. 11 and 12, the one-way valve 300 may include a fixed end 330 and a resilient arm 320 in addition to the flap 310. The fixing end 330 has a through hole 331 extending in a thickness direction thereof, and the fixing end 330 is mounted on the base 200 through the through hole 331. The elastic arm 320 is connected between the fixed end 330 and the blocking piece 310, and the blocking piece 310 can swing up and down relative to the fixed end 330 along with the elastic arm 320. The entire check valve 300 may be integrally formed, and the check valve 300 may be made of an elastic plastic material.

Compared with the baffle plate 310 and the fixed end 330, the thickness D of the elastic arm 320 is the smallest, the thickness D of the elastic arm 320 is 0.1mm to 0.8mm, for example, the specific value of the thickness may be 0.1mm, 0.5mm or 0.8 mm. The length C of the elastic arm 320 is 0.02mm to 2mm, and for example, the length C may be 0.02mm, 1mm, or 2 mm. The width B of the elastic arm 320 is 0.5mm to 3mm, for example, the specific value of the width B may be 0.5mm, 2mm or 3 mm. The elastic arm 320 has a first curved surface 321 and a second curved surface 322 with opposite bending directions, the first curved surface 321 is the upper surface of the elastic arm 320 and the bending direction is upward, the second curved surface 322 is the lower surface of the elastic arm 320 and the bending direction is downward, and the distance between the first curved surface 321 and the second curved surface 322 decreases from the edge portion of the elastic arm 320 to the middle portion thereof. The edges of the resilient arms 320 are spaced a predetermined distance a from the edges of the fixed end 330 and the flap 310 in the width direction of the resilient arms 320, respectively, so that two U-shaped groove-like structures are formed on the entire check valve 300.

With the above arrangement, when a pressure difference acts on the flap 310, the elastic arm 320 can be easily elastically deformed, i.e., the elastic force generated by the flap 310 during opening the air inlet 410 is reduced, so that the flap 310 can be separated from the base 200 under the action of a smaller pressure difference to open the air inlet 410, thereby reducing the suction force of the user and improving the response sensitivity of the atomizer 10 to the suction of the user.

In some embodiments, referring to fig. 3, 4 and 5, since all of the first contact surface 212 can be attached to the baffle 310, at this time, the contact surface of the baffle 310 and/or the first contact surface 212 of the base 200 can further be provided with a cavity 250, and the cavity 250 is covered between the base 200 and the baffle 310 and is communicated with the air inlet 410. Of course, in the case where the cavity 250 is opened in the flap 310, at least a portion of the orthographic projection of the cavity 250 with respect to the base 200 falls on the first contact surface 212. The depth dimension h of cavity 250 is 0.01mm to 0.5mm, for example, the depth dimension h may be 0.01mm, 0.4mm, or 0.5 mm. The cross-sectional profile of the concavity 250 is circular, polygonal, or elliptical, etc.

When the first contact surface 212 is continuously opened with the cavity 250 communicating with the air inlet 410, the cavity 250 acts as a notch. At the gap formed by the cavity 250, the portion of the flap 310 corresponding to the cavity 250 is not in actual adhering relation with the base 200, and thus the portion of the flap 310 adhered with condensate and spilled oil is not adhered to the base 200. Therefore, since the resistance of the flap 310 to open the air inlet is substantially composed of the gravity, the elastic force and the adhesive force by the pressure difference, the flap 310 is more easily separated from the base 200 when the adhesive force is reduced or eliminated in the case where the gravity and the elastic force are the same.

Since the adhesive force is not formed between the portion of the flap 310 corresponding to the cavity 250 and the base 200, and the cavity 250 is communicated with the air inlet 410, the pressure difference is directly applied to the portion of the flap 310, and the portion of the flap 310 corresponding to the cavity 250 is more easily separated from the base 200 than the other portion of the flap 310 actually attached to the base 200 for the entire flap 310, so that the portion of the flap 310 forms a stress weak point, and then the entire flap 310 is separated from the base 200 before the stress weak point and forms a "tear gap" with the base 200. After the external air enters the tear gap from the air inlet 410, the adhesive force between the condensate and the overflowed oil can be further greatly weakened, so that the tear gap is rapidly expanded to correspond to other parts of the baffle 310, the resistance of the whole baffle 310 leaving the base 200 is finally reduced, the baffle 310 can be rapidly separated from the base 200 under the action of a small pressure difference, the blocking or breaking feeling caused by the fact that the baffle 310 is difficult to separate from the base 200 due to the fact that the suction force is too small is prevented, and the response sensitivity of the atomizer 10 to the suction of a user is further improved.

Of course, when the cavity 250 is formed on both the contact surface of the flap 310 and the first contact surface 212 of the base 200, as described above with respect to the cavity 250 formed on the first contact surface 212 of the base 200, a stress weak point may also be formed, thereby eliminating the click or jerk and increasing the sensitivity of the nebulizer 10 to user suction. To provide a plurality of stress weak points and further reduce the resistance of the flap 310 to being removed from the base 200, the number of cavities 250 can be multiple, with multiple cavities 250 being spaced circumferentially around the intake aperture 410.

For the embodiment of the supporting cylinder 202 having the first contact surface 212, the first spacing surface 211a and the second spacing surface 211b, two cavities 250 are opened on the first contact surface 212, and the cavities 250 may only penetrate through the first spacing surface 211a and communicate with the air inlet 410. While reducing the contact area between the flap 310 and the base 200, a stress weak point may be formed between the flap 310 and the base 200, further reducing the resistance of the flap 310 to leave the base 200. Of course, the cavity 250 may further penetrate through the second partition surface 211b to communicate with the annular sinking groove 222, that is, the cavity 250 communicates with both the air inlet hole 410 and the annular sinking groove 222, so that the cavity 250 can cut off the first contact surface 212, and prevent the first contact surface 212 from being closed along the circumferential direction of the air inlet hole 410 to form a continuous ring shape, which can further reduce the contact area between the baffle 310 and the base 200, and further reduce the adhesive force at the stress weak point.

In some embodiments, the contact surface of the flap 310 and/or the contact surface of the base 200 is a non-smooth, rough surface having a roughness Ra of 1.6 μm or more. Due to the uneven micropores or texture structures formed on the rough contact surface, the attachment area between the baffle plate 310 and the base 200 can be further reduced, and meanwhile, stress weak points can be formed between the baffle plate 310 and the base 200, so that the resistance of the baffle plate 310 to leave the base 200 is reduced to the maximum extent.

In some embodiments, the resistance of the flap 310 to opening the intake aperture 410 can be reduced by reducing the contact area between the flap 310 and the base 200 and providing the cavity 250 in the contact surface 212 to form a stress weak point, and by reducing the elastic force generated when the flap 310 leaves the base 200 due to the structural design of the check valve 300, which means that the above measures can reduce the threshold pressure corresponding to the opening of the intake aperture 410 by the flap 310. For example, the range of the threshold pressure is 10Pa to 100Pa, the range of the threshold pressure is preferably 30Pa to 70Pa, and specific values of the threshold pressure may be 30Pa, 40Pa, 70Pa, or the like. In the case where the threshold pressure is set to 30Pa to 70Pa, the flap 310 can rapidly open the air inlet hole 410 when the pressure difference is only about 70Pa, and a user does not need to suck with great force to form a high air pressure difference, so that a click or a pause caused by difficulty in separating the flap 310 from the base 200 due to too small suction force is prevented, and the response sensitivity of the atomizer 10 to the user suction is improved.

After the air inlet hole 410 is completely opened by the blocking piece 310, the maximum distance H from the blocking piece 310 to the contact surface 212 is 0.3mm to 1.5mm, and the specific value of the maximum distance H can be 0.3mm, 1mm or 1.5 mm. Through setting the maximum distance H, the gas in the gas inlet 410 can enter the gas flow channel 400 above the baffle 310 through the space corresponding to the maximum distance H, so that sufficient external gas carrying smoke is ensured for the user to suck, and the requirements of the user on different suction amounts are met.

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 invention. 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. An atomizer for use in an electronic atomizer device for inhalation by a user, said atomizer comprising:

the air flow channel comprises an air inlet and an air outlet;

the air inlet hole penetrates through the base; and

2. A nebulizer as claimed in claim 1, wherein the cavity severs the contact surface of the base and/or the contact surface of the flap, preventing the contact surfaces from closing into a continuous loop along the circumference of the inlet aperture.

3. The atomizer of claim 1, wherein the surface of the base that faces the atomizing core is recessed to form an annular groove, the annular groove makes a part of the base form a support cylinder, the air inlet passes through the support cylinder, the contact surface of the base is a first contact surface, the first contact surface is located on the support cylinder, and the cavity is opened on the first contact surface.

4. The nebulizer of claim 3, wherein the cartridge further comprises a first spacer surface and a second spacer surface, the first contact surface being connected between the first and second spacer surfaces, the first and second spacer surfaces forming a set taper angle and both being located on a side of the first contact surface remote from the baffle; when the blocking piece covers the air inlet hole, the first contact surface is abutted to the blocking piece, and the first and second spacing surfaces are arranged at intervals with the blocking piece.

5. An atomiser according to claim 4, wherein the cone angle is in the range 20 to 135 ° and the first contact surface width is in the range 0.2 to 1 mm.

6. The atomizer of claim 4, wherein said cavity extends through both of said first and second spaced surfaces to communicate said annular depression with said inlet orifice.

7. The atomizer of claim 1, wherein said contact surface is a roughened surface having a roughness Ra ≥ 1.6 μm.

8. A nebulizer as claimed in claim 1, wherein the cavity has a depth dimension of between 0.01mm and 0.5 mm.

9. A nebulizer as claimed in claim 1, wherein the cavity has a cross-sectional profile which is circular, polygonal or elliptical; the contact surface is circular ring-shaped, runway-shaped or rectangular.

10. The atomizer of claim 1, wherein said number of cavities is plural, and a plurality of said cavities are spaced circumferentially along said inlet orifice.

11. The nebulizer of claim 1, wherein the one-way valve further comprises a fixed end and a resilient arm, the resilient arm is connected between the fixed end and the blocking piece, the fixed end is fixedly connected with the base, and the blocking piece can swing relative to the fixed end along with the resilient arm.

12. The nebulizer of claim 11, wherein the elastic arm has a first curved surface and a second curved surface which are bent in opposite directions, and a distance between the first curved surface and the second curved surface decreases from an edge portion of the elastic arm to a middle portion thereof.

13. A nebulizer as claimed in claim 11, wherein the resilient arm is of minimal thickness relative to the fixed end and the flap.

14. The nebulizer of claim 11, wherein the thickness of the resilient arm is 0.1mm to 0.8mm, the length of the resilient arm is 0.02mm to 2mm, and the width of the resilient arm is 0.5mm to 3 mm.

15. The nebulizer of claim 11, wherein edges of the resilient arm are spaced apart from the fixed end and edges of the blocking piece in a width direction of the resilient arm.

16. The nebulizer of claim 11, wherein the fixing end has a through hole extending in a thickness direction thereof, and the through hole is used for mounting the fixing end.

17. The nebulizer of claim 1, wherein the maximum separation distance of the baffle to the contact surface is 0.3mm to 1.5mm when the baffle opens the intake aperture.

18. A nebulizer as claimed in claim 1, wherein the flap is open when the difference in air pressure created by the pumping action on opposite sides of the flap is greater than a threshold pressure, the threshold pressure being in the range of 10Pa to 100 Pa.

19. A nebulizer as claimed in claim 18, wherein the threshold pressure is in the range 30Pa to 70 Pa.

20. An electronic atomizer, comprising a power module and the atomizer according to any one of claims 1 to 19, wherein the power module is provided with a housing chamber capable of housing the atomizer.

21. The electronic vaping device of claim 20, wherein the cartomizer is removably connected to the power supply assembly.