Electronic atomization device and its atomizer

Abstract

The present invention relates to an electronic atomization device and its atomizer. A liquid storage cavity is formed in the atomizer. The atomizer includes a heating component and an upper seat body that at least partially surrounds the upper part of the heating component. The upper seat body includes a first liquid inlet hole communicating the liquid storage cavity and the heating component and at least one second liquid inlet hole. The cross-sectional area of the inner hole of the first liquid inlet hole is larger than the cross-sectional area of the inner hole of the at least one second liquid inlet hole. The liquid discharging rate / liquid flow rate of the first liquid inlet hole is greater than the liquid discharging rate / liquid flow rate of the at least one second liquid inlet hole. The first liquid inlet is mainly used for liquid discharging, and the at least one second liquid inlet can assist in air exchange, relieve dry burning caused by insufficient air exchange of the heating component, and prevent a large number of bubbles from being formed in the liquid storage cavity.

Description

Technical Field

[0001] The present invention relates to the field of electronic atomization, and more specifically, to an electronic atomization device and an atomizer thereof. Background Art

[0002] An electronic atomization device mainly consists of an atomizer and a power supply component. The power supply device is used to supply power to the atomizer, and the atomizer is used to contain liquid matrices such as e-liquid and medicine liquid and heat them to generate atomized gas for users to inhale.

[0003] Generally, an atomizer includes a heating component that heats and atomizes a liquid matrix after being powered on. When the related electronic atomization device is working, it is prone to dry burning due to insufficient air exchange of the heating component, resulting in a burnt smell and affecting the user experience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an improved electronic atomization device and an atomizer thereof in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is: to construct an atomizer, a liquid storage cavity is formed in the atomizer, the atomizer includes a heating component and an upper seat body that at least partially surrounds the upper part of the heating component, the upper seat body includes a first liquid inlet hole communicating the liquid storage cavity and the heating component and at least one second liquid inlet hole, and the cross-sectional area of the inner hole of the first liquid inlet hole is larger than the cross-sectional area of the inner hole of the at least one second liquid inlet hole.

[0006] In some embodiments, the upper seat body further includes a main body portion and a nested portion extending downward from the bottom of the main body portion, the nested portion is sleeved outside the heating component, and the first liquid inlet hole and the at least one second liquid inlet hole both penetrate longitudinally through the main body portion.

[0007] In some embodiments, the upper end surfaces of the at least one first liquid inlet hole and the at least one second liquid inlet hole are flush with the upper end surface of the main body portion.

[0008] In some embodiments, the upper seat body includes a first liquid inlet hole and a second liquid inlet hole, the first liquid inlet hole and the second liquid inlet hole respectively penetrate longitudinally through two opposite sides of the main body portion along the longitudinal direction.

[0009] In some embodiments, the upper seat body further includes a hollow structure formed between the first liquid inlet hole and the second liquid inlet hole, the hollow structure is formed on the side of the main body portion facing the nested portion, and the hollow structure is isolated from the first liquid inlet hole and the second liquid inlet hole respectively.

[0010] In some embodiments, the upper seat body further includes a reinforcing rib disposed in the hollow structure, and the reinforcing rib divides the hollow structure into a first cavity and a second cavity that do not communicate with each other.

[0011] In some embodiments, the atomizer further includes a sealing sleeve disposed between the nested portion and the heating component.

[0012] In some embodiments, the heating component has a liquid absorption surface facing the liquid storage cavity and an atomization surface disposed opposite to the liquid absorption surface;

[0013] The atomizer further includes a lower seat body, the heating component is received in the space formed by the lower seat body and the upper seat body, and the liquid absorption surface and the atomization surface of the heating component are respectively opposite to the upper seat body and the lower seat body.

[0014] In some embodiments, the lower seat body includes a base, a first support arm extending from the base, and a second support arm extending from the base and disposed opposite to the first support arm, and the heating component is supported between the first support arm and the second support arm.

[0015] In some embodiments, an air inlet channel, an air outlet channel, and an atomization channel communicating the air inlet channel and the air outlet channel are formed in the atomizer, and the first support arm and the second support arm are respectively disposed corresponding to the air inlet channel and the air outlet channel;

[0016] The lower seat body further includes a partition wall for isolating the air inlet channel and the atomization channel, and at least one air inlet micropore for communicating the air inlet channel and the atomization channel is provided on the partition wall.

[0017] In some embodiments, the diameter of each of the at least one air inlet micropore is 0.1 - 0.6 mm;

[0018] A plurality of air inlet micropores are provided on the partition wall, and the total cross-sectional area of the plurality of air inlet micropores is 1.2 - 2.0 mm 2 .

[0019] In some embodiments, a ventilation hole communicating the air inlet channel and the outside of the atomizer is further provided on the base.

[0020] In some embodiments, the atomizer further includes an air pipe disposed in the ventilation hole, and the air inlet end of the air pipe extends into the air inlet channel and is higher than the surface of the base.

[0021] In some embodiments, the air inlet end of the air pipe is not lower than the lowest position of the at least one air inlet micropore.

[0022] In some embodiments, the intake end of the vent pipe is higher than the highest position of the at least one intake micropore.

[0023] In some embodiments, the upper seat body is snap-connected to the first support arm and the second support arm respectively.

[0024] The present invention also provides an electronic atomization device, including an atomizer as described in any one of the above and a power supply device electrically connected to the atomizer.

[0025] Implementing the present invention has at least the following beneficial effects: For the atomizer of the present invention, since the cross-sectional area of the inner hole of the first liquid inlet hole is larger than the cross-sectional area of the inner hole of the at least one second liquid inlet hole, the liquid discharge rate / liquid flow rate of the first liquid inlet hole is greater than the liquid discharge rate / liquid flow rate of the at least one second liquid inlet hole. The first liquid inlet is mainly used for liquid discharge, and the at least one second liquid inlet can assist in ventilation, relieve dry burning caused by insufficient ventilation of the heating component, and prevent a large number of bubbles from forming in the liquid storage cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0027] Figure 1 is a schematic perspective view of an electronic atomization device in some embodiments of the present invention;

[0028] Figure 2 is Figure 1 a schematic cross-sectional view of the atomizer in ;

[0029] Figure 3 is Figure 2 a schematic combined structure view of the lower seat body, the heating component, and the upper seat body in ;

[0030] Figure 4 is Figure 3 a schematic exploded structure view of the lower seat body, the heating component, and the upper seat body in ;

[0031] Figure 5 is Figure 3 a schematic exploded cross-sectional view of the lower seat body, the heating component, and the upper seat body in ;

[0032] Figure 6 is Figure 3 a schematic perspective view of the upper seat body in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] In order to have a clearer understanding of the technical features, objectives, and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the drawings.

[0034] As Figure 1As shown, the electronic atomization device in some embodiments of the present invention includes an atomizer 1 and a power supply device 2 electrically connected to the atomizer 1. The atomizer 1 is used to contain liquid matrices such as e-liquid and liquid medicine and heat them to generate atomized gas, and the power supply device 2 is used to supply power to the atomizer 1. As shown in the figure, the lower end of the atomizer 1 is inserted into the upper end of the power supply device 2, and the two can be combined in a detachable manner.

[0035] As Figure 2 shown, the atomizer 1 may include a housing 18, a mouthpiece 19, and a heating component 13 in some embodiments. A liquid storage cavity 11 and an air flow channel 15 are formed in the housing 18. The liquid storage cavity 11 stores liquid matrices such as e-liquid and liquid medicine. The heating component 13 is disposed in the housing 18 and is in fluid communication with the liquid storage cavity 11, and is used to heat and atomize the liquid matrix stored in the liquid storage cavity 11. The mouthpiece 19 may be disposed at the upper end of the housing 18. In this embodiment, the mouthpiece 19 covers the upper end of the housing 18. The air flow channel 15 is connected to the heating component 13 and the mouthpiece 19 for guiding air. When air flows, the air flow channel 15 brings the atomized gas generated after the heating component 13 heats and atomizes to the mouthpiece 19 for the user to inhale.

[0036] The air flow channel 15 includes an air inlet channel 151, an air outlet channel 153, and an atomization channel 152 connecting the air inlet channel 151 and the air outlet channel 153. The air inlet channel 151 is in communication with the external air, and the air outlet channel 153 is in communication with the mouthpiece 19. When the user sucks, the gas sequentially passes through the air inlet channel 151, the atomization channel 152, and the air outlet channel 153 to the mouthpiece 19, driving the atomized gas after the heating component 13 is atomized for the user to inhale.

[0037] An air inlet hole 183 may be formed on the housing 18, and external air can enter the air inlet channel 151 through the air inlet hole 183. An air inlet pipe 184 connected to the air inlet hole 183 and an air outlet pipe 185 connected to the mouthpiece 19 may also be formed in the housing 18. The air inlet channel 151 may include a first air inlet channel 1511 formed by the inner wall of the air inlet pipe 184 and a second air inlet channel 1512 respectively connecting the first air inlet channel 1511 and the atomization channel 152. The air outlet channel 153 may include a second air outlet channel 1532 formed by the inner wall of the air outlet pipe 185 and a first air outlet channel 1531 respectively connecting the atomization channel 152 and the second air outlet channel 1532.

[0038] Inside the housing 18, there are a first isolation part 181 and a second isolation part 182. The first isolation part 181 and the second isolation part 182 can both be integrally injection-molded with the housing 18, and they can be integrally extended downward from the inner wall of the housing 18 respectively. An air inlet pipe 184 and an air outlet pipe 185 are formed between the first isolation part 181, the second isolation part 182 and the housing 18 respectively. In this embodiment, the air inlet hole 183 can be opened at the top of the air inlet pipe 184. The air inlet hole 183 is formed by using the gap left between the housing 18 and the first isolation part 181, avoiding specially opening a hole on the housing 18, saving the processing technology, and at the same time ensuring the beauty and integrity of the product appearance. In other embodiments, the air inlet hole 183 can also be opened on the side surface of the air inlet pipe 184 near the top.

[0039] In some embodiments, the atomizer 1 may further include a first flow-limiting member 161. The first flow-limiting member 161 can be tubular. The first flow-limiting member 161 is axially inserted into the air inlet pipe 184 along the first air inlet channel 1511 to adjust the air inlet cross-sectional area of the air inlet pipe 184. The contact part of the first flow-limiting member 161 and the air inlet pipe 184 is in interference fit to form a sealed connection to effectively prevent liquid leakage. The first flow-limiting member 161 is usually made of a flexible material, preferably silicone material, and the sealing performance of the contact part between it and the air inlet pipe 184 is better.

[0040] Since the air inlet cross-sectional area of the first flow-limiting member 161 is smaller than that of the air inlet pipe 184, the liquid leakage from the air inlet pipe 184 can be alleviated. In some embodiments, the air inlet cross-sectional area of the first flow-limiting member 161 is within a set range. Within this set range, a surface tension film can be formed on the inner surface of the first flow-limiting member 161 to prevent the condensate or accumulated liquid at the bottom of the atomizer 1 from flowing out of the atomizer 1 through the air inlet pipe 184. The air inlet cross-sectional area of the first flow-limiting member 161 can be selected according to the material of the first flow-limiting member 161. In some embodiments, the air inlet cross-sectional area of the first flow-limiting member 161 is 0.8 - 1.2 mm 2 , such as 1.0 mm 2 or 1.1 mm 2 . Within this range, both good ventilation effect can be ensured and liquid leakage can be effectively prevented.

[0041] In some embodiments, the first flow-limiting member 161 can be arranged at the lower end of the air inlet pipe 184. Since a chamfer is usually provided at the lower end of the air inlet pipe 184, when the atomizer is horizontally placed or the suction posture changes, the condensate is likely to flow along the chamfer at the lower end into the air inlet pipe 184 to form liquid leakage. Therefore, the lower end surface of the first flow-limiting member 161 can be flush with the lower end surface of the air inlet pipe 184. In this way, it is also convenient for positioning during installation. In addition, it can also solve the problem of liquid matrix leakage from the air inlet pipe 184 caused by shaking during transportation.

[0042] Continue to refer to Figure 2, in some embodiments, the atomizer 1 may further include a second flow restrictor 162. The second flow restrictor 162 may be tubular and axially inserted into the air outlet pipe 185 along the second air outlet channel 1532 to reduce the cross-sectional area of the air outlet of the air outlet pipe 185 and relieve liquid leakage from the air outlet pipe 185. In addition, since the second flow restrictor 162 has a smaller cross-sectional area of the air outlet, the atomized gas can be more concentrated when entering the air outlet pipe 185, and the suction taste is denser.

[0043] The contact part between the second flow restrictor 162 and the air outlet pipe 185 is in interference fit to form a sealed connection to effectively prevent liquid leakage. The second flow restrictor 162 is usually made of a flexible material, preferably silicone material, and the sealing performance of the contact part between it and the air outlet pipe 185 is better.

[0044] The second flow restrictor 162 can be arranged at the lower end of the air outlet pipe 185. Since a chamfer is usually provided at the lower end of the air outlet pipe 185, liquid leakage is likely to occur at the chamfer of the lower end during horizontal placement or when the suction posture changes. Therefore, the lower end surface of the second flow restrictor 162 can be flush with the lower end surface of the air outlet pipe 185. In this way, it is also convenient for positioning during installation. In addition, it can also solve the problem of liquid matrix leakage from the air outlet pipe 185 caused by shaking during transportation.

[0045] The cross-sectional area of the air outlet of the second flow restrictor 162 can be selected according to the material of the second flow restrictor 162. In some embodiments, the cross-sectional area of the air outlet of the second flow restrictor 162 is between 3.5 - 4.0 mm 2 such as 3.75 mm 2 .

[0046] Referring to Figure 2-6 , in some embodiments, the atomizer 1 may further include a lower seat body 14, a sealing sleeve 172, and an upper seat body 12. The heating assembly 13 has a liquid absorption surface 131 facing the liquid storage cavity 11 and an atomization surface 132 disposed opposite to the liquid absorption surface 131. The heating assembly 13 is received in the space formed between the lower seat body 14 and the upper seat body 12, and the liquid absorption surface 131 and the atomization surface 132 of the heating assembly 13 face the upper seat body 12 and the lower seat body 14 respectively. The upper seat body 12, the first isolation portion 181, and the second isolation portion 182 together define the liquid storage cavity 11.

[0047] The bottom of the outer shell 18 is open, and the lower seat body 14 is fitted at this opening. The heating component 13 is arranged on the lower seat body 14, and the sealing sleeve 172 is sleeved outside the heating component 13. The upper seat body 12 at least partially surrounds the upper part of the heating component 13 and presses against the sealing sleeve 172. After the upper seat body 12 presses against the sealing sleeve 172, the heating component 13 is tightly clamped between the lower seat body 14 and the upper seat body 12, with stable structure and convenient assembly. The presence of the sealing sleeve 172 can achieve the sealing between the heating component 13 and the upper seat body 12, preventing liquid leakage; it can also make the positioning of the heating component 13 in the horizontal direction more compact. The sealing sleeve 172 is usually made of a flexible material, preferably silicone material, with better sealing performance.

[0048] In some embodiments, the lower seat body 14 may include a base 141, a first support arm 142 extending from the base 141, and a second support arm 143 extending from the base 141 and arranged opposite to the first support arm 142. The first support arm 142 and the second support arm 143 may integrally extend from the top of the base 141 towards the heating component 13. The heating component 13 is supported between the first support arm 142 and the second support arm 143, and its atomizing surface 132 faces the base 141 and has a certain interval from the base 141. This interval forms an atomizing channel 152 for realizing the mixing of the atomized gas after atomization of the heating component 13 and the external air.

[0049] In some embodiments, the base 141 may be in a flat plate shape, and ventilation holes 1413 for communicating the air inlet channel 151 with the outside of the atomizer 1 may be provided thereon. A ventilation pipe 163 extending into the air inlet channel 151 is arranged in the ventilation holes 1413. One end (air inlet end) of the ventilation pipe 163 extends into the air inlet channel 151, and the other end (air outlet end) is connected to the pneumatic switch in the power supply device 2, so that external air can enter the power supply device 2 along the ventilation pipe 163 from the air inlet channel 151, enabling the pneumatic switch in the power supply device 2 to sense suction or gas flow. When the user sucks, the pneumatic switch detects the airflow passing through, sends a signal to the controller, and makes the power supply device 2 supply power to the heating component 13 of the atomizer 1.

[0050] The ventilation pipe 163 can be inserted along the axial direction of the ventilation holes 1413 on the side of the base 141 opposite to the air inlet channel 151. The air inlet end of the ventilation pipe 163 extends into the air inlet channel 151 and is higher than the surface of the surrounding base 141. Therefore, if the atomizer 1 leaks liquid, it is not easy to enter the ventilation pipe 163, thereby reducing the risk of liquid entering the power supply device 2 from the ventilation pipe 163.

[0051] The vent pipe 163 is a vertical slender tube, which is convenient for manufacturing and assembly. In other embodiments, the vent pipe 163 can also be a bent slender tube. Since the vent pipe 163 is thin and long, a small amount of condensate will adhere to the vent pipe 163 due to surface tension and will not easily enter the power supply device 2. In some embodiments, the vent pipe 163 is made of metal, preferably stainless steel, which is easy to shape and rust-proof.

[0052] The vent pipe 163 and the heating component 13 are staggered, that is, the vent pipe 163 is not located directly below the heating component 13, so as to prevent the liquid condensed below the heating component 13 from falling directly into the vent pipe 163, thereby reducing the risk of the liquid flowing from the vent pipe 163 to the side of the power supply device 2.

[0053] The first support arm 142 and the second support arm 143 are respectively located at two opposite sides of the heating component 13, and are used to support and install the heating component 13 and the upper seat body 12. The inner side surfaces of the first support arm 142 and the second support arm 143 are also provided with a first receiving groove 1422 and a second receiving groove 1432 respectively, so that the nesting portion 122 of the upper seat body 12 can be embedded therein. The first receiving groove 1422 and the second receiving groove 1432 are respectively formed in the upper half of the first support arm 142 and the second support arm 143, and a first step 1421 and a second step 1431 are respectively formed on the first support arm 142 and the second support arm 143. The two ends of the heating component 13 are respectively overlapped on the first step 1421 and the second step 1431. The first support arm 142 and the second support arm 143 are also respectively provided with a clamping groove 146 for clamping with the upper seat body 12, and the clamping groove 146 can be respectively formed on the side walls of the first receiving groove 1422 and the second receiving groove 1432. The nesting portion 122 is provided with a hook 1221 that matches the slot 146 . When the nesting portion 122 is inserted into the first receiving slot 1422 and the second receiving slot 1432 , the hook 1221 and the slot 146 are buckled and fixed to each other to conveniently buckle the upper body 12 and the lower body 14 together.

[0054] The first support arm 142 is disposed on the side of the base 141 opposite to the intake passage 151. A baffle wall 144 for isolating the atomization passage 152 and the intake passage 151 may also be provided on the first support arm 142. At least one intake micropore 1441 communicating with the intake passage 151 and the atomization passage 152 is provided transversely on the baffle wall 144, and the at least one intake micropore 1441 facilitates the passage of air flow. The baffle wall 144 may be in the shape of a flat plate, and the baffle wall 144 can prevent the accumulated liquid received on the base 141 from flowing out of the atomizer 1. In addition, the baffle wall 144 can also block a part of the atomized gas after being atomized by the heating component 13, avoiding the atomized gas from being diverted to the intake passage 151 here, so that the atomized gas after atomization flows along the air outlet passage 153 to the mouthpiece 19, and the suction taste is more full. The baffle wall 144, the first support arm 142, and the second support arm 143 can all be integrally injection-molded with the base 141.

[0055] In this embodiment, a plurality of intake micropores 1441 are provided on the baffle wall 144, and the plurality of intake micropores 1441 may be distributed in a honeycomb shape or a uniform array. In some embodiments, the intake cross-sectional area of each intake micropore 1441 is within a set range, and within this set range, a surface tension film can be formed on the inner surface of the intake micropore 1441, which can further prevent the accumulated liquid from flowing out of the atomizer 1, thereby preventing the atomizer 1 from leaking liquid. In some embodiments, the diameter of each intake micropore 1441 is 0.1 - 0.6 mm, such as 0.5 mm, so that a surface tension can be formed on the hole surface. In some embodiments, the total cross-sectional area of the plurality of intake micropores 1441 is 1.2 - 2.0 mm 2 , such as 1.5 mm 2 . Within this range, both good ventilation effect can be ensured and liquid leakage can be effectively prevented.

[0056] There is a certain interval between the intake end of the air pipe 163 and the plurality of intake micropores 1441 to prevent liquid from directly entering the air pipe 163 through the intake micropores 1441. In some embodiments, the intake end of the air pipe 163 is not lower than the lowest position of the plurality of intake micropores 1441, that is, the intake end of the air pipe 163 is not lower than the position where the lowest intake micropore 1441 is located. Preferably, the position of the intake end of the air pipe 163 is higher than the highest position of the plurality of intake micropores 1441, that is, the position of the intake end of the air pipe 163 is higher than the position where the highest intake micropore 1441 is located.

[0057] The second support arm 143 is disposed on the side of the base 141 opposite to the air outlet passage 153. The second support arm 143 can be formed by extending upward from one side edge of the base 141. A notch 145 for the passage of atomized gas is formed between the second support arm 143 and the base 141.

[0058] Due to the different structures of the first support arm 142 and the second support arm 143, in order to avoid misassembly of the lower seat body 14 during assembly and improve the assembly efficiency, anti-fooling structures that cooperate with each other can be respectively provided on the lower seat body 14 and the upper seat body 12 to ensure that the lower seat body 14 and the upper seat body 12 can be assembled in the correct direction, so that the first support arm 142 and the second support arm 143 are respectively opposite to the air inlet channel 151 and the air outlet channel 153, ensuring the smooth assembly and cooperation of the lower seat body 14 and the upper seat body 12. The anti-fooling structure may include a first anti-fooling portion provided on the first support arm 142 and / or the second support arm 143, and a second anti-fooling portion provided on the upper seat body 12 and engaging with the first anti-fooling portion in a convex-concave manner. In this embodiment, the first anti-fooling portion includes an anti-fooling post 1433 protruding from the top of the second support arm 143, and the second anti-fooling portion includes an anti-fooling groove 1241 provided on the upper seat body 12 and engaging with the anti-fooling post 1433 in a convex-concave manner.

[0059] A receiving groove 1411 is recessed in the top surface of the base 141 (the side facing the heating component 13), and the receiving groove 1411 can be provided between the first support arm 142 and the second support arm 143. A liquid absorbing member 147 is provided in the receiving groove 1411 for absorbing the accumulated liquid received on the base 141. The liquid absorbing member 147 can generally be absorbent cotton.

[0060] In some embodiments, the top surface of the base 141 may include a liquid guiding inclined surface 1412, and the accumulated liquid received on the base 141 can flow back to the liquid absorbing member 147 through the liquid guiding inclined surface 1412 and be absorbed by the liquid absorbing member 147, avoiding liquid accumulation and alleviating liquid leakage; at the same time, it can also avoid making noises during suction, resulting in gurgling sounds.

[0061] In some embodiments, the liquid guiding inclined surface 1412 is correspondingly arranged with the notch 145, and the liquid guiding inclined surface 1412 and the second support arm 143 together define the notch 145. The liquid guiding inclined surface 1412 can be an inclined plane in some embodiments, and it can have a first inclination slope that slopes downward from the edge of the base 141 towards the liquid absorbing member 147, so as to facilitate the flow of the accumulated liquid on the base 141 towards the liquid absorbing member 147. In some embodiments, the liquid guiding inclined surface 1412 can also have a second inclination slope that slopes downward from the side where the second support arm 143 contacts the base 141 to the other side, so as to facilitate the backflow of the accumulated liquid and the demolding during the injection molding of the lower seat body 14.

[0062] The base 141 and the outer shell 18 are hermetically connected to prevent liquid leakage. The atomizer 1 may further include a first sealing member 173 provided between the base 141 and the outer shell 18 in some embodiments. The first sealing member 173 is annular and sleeved outside the base 141. The first sealing member 173 is generally made of a flexible material, preferably silicone material, with better sealing performance.

[0063] The upper seat body 12 is disposed in the liquid storage cavity 11 and is in fluid communication with the liquid storage cavity 11. In some embodiments, the upper seat body 12 may include a main body portion 121 that is generally rectangular parallelepiped-shaped, a nested portion 122 that extends downward from the bottom of the main body portion 121, and a first liquid inlet hole 1211 and at least one second liquid inlet hole 1212 that communicate the liquid storage cavity 11 and the heating component 13. The nested portion 122 is annular, and is received in a first receiving groove 1422 and a second receiving groove 1432 between a first support arm 142 and a second support arm 143 of the lower seat body 14, and is sleeved outside the sealing sleeve 172.

[0064] The first liquid inlet hole 1211 and the at least one second liquid inlet hole 1212 both penetrate longitudinally through the main body portion 121. The cross-sectional area of the inner hole of each second liquid inlet hole 1212 is smaller than the cross-sectional area of the inner hole of the first liquid inlet hole 1211, so that the liquid discharging rate / liquid flow rate of the first liquid inlet hole 1211 is greater than the liquid discharging rate / liquid flow rate of the at least one second liquid inlet hole 1212. The first liquid inlet hole 1211 is mainly used for liquid discharging, and the at least one second liquid inlet hole 1212 can be used for liquid discharging and auxiliary ventilation to relieve dry burning caused by insufficient ventilation of the heating component 13. In addition, after the liquid injection (injecting liquid from the lower seat body of the atomizer 1 towards the mouthpiece end) is completed and the assembled atomizer 1 is inverted, since the at least one second liquid inlet hole 1212 can assist in ventilation, a large number of bubbles can be avoided from being formed in the liquid storage cavity 11 (if bubbles are formed in the liquid storage cavity 11, it will easily cause liquid leakage when the external environment of the atomizer 1 changes, such as when the external pressure changes during transportation).

[0065] The cross-sectional areas of the inner holes of the at least one second liquid inlet hole 1212 may be the same or different. The upper end surfaces (the end surfaces facing the liquid storage cavity 11) of the first liquid inlet hole 1211 and the at least one second liquid inlet hole 1212 are flush with the upper end surface of the main body portion 121.

[0066] In this embodiment, the upper seat body 12 includes a first liquid inlet hole 1211 and a second liquid inlet hole 1212. The first liquid inlet hole 1211 and the second liquid inlet hole 1212 respectively penetrate longitudinally through two opposite sides of the main body portion 121 along the longitudinal direction. A hollow structure 1213 may be formed between the first liquid inlet hole 1211 and the second liquid inlet hole 1212. The hollow structure 1213 is formed on a side of the main body portion 121 facing the nested portion 122, and the hollow structure 1213 is isolated from the first liquid inlet hole 1211 and the second liquid inlet hole 1212 respectively. The hollow structure 1213 can prevent the surface size of the upper seat body 12 from being uneven due to shrinkage during the injection molding process caused by excessive thickness. Further, in order to improve the structural strength of the upper seat body 12, a reinforcing rib 1214 may be provided in the hollow structure 1213, and the reinforcing rib 1214 divides the hollow structure 1213 into a first cavity 1215 and a second cavity 1216 that do not communicate with each other.

[0067] On both sides of the upper seat body 12, a first extension portion 123 and a second extension portion 124 can be horizontally extended outward respectively. The first extension portion 123 and the second extension portion 124 are respectively abutted against the upper end surfaces of the first support arm 142 and the second support arm 143. A fool-proof groove 1241 is formed by recessing on the second extension portion 124. The fool-proof groove 1241 is matched with the fool-proof post 1433 to play a fool-proof function, avoid the lower seat body 14 from being assembled in the wrong direction, and improve the assembly efficiency.

[0068] The upper seat body 12 and the outer shell 18 are hermetically connected to prevent liquid leakage. In some embodiments, the atomizer 1 may further include a second seal 171 disposed between the upper seat body 12 and the outer shell 18. The second seal 171 is annular and sleeved outside the upper seat body 12. The second seal 171 is usually made of a flexible material, preferably silicone material, with better sealing performance.

[0069] It can be understood that the above technical features can be combined and used arbitrarily without limitation.

[0070] The above embodiments only represent the preferred embodiments of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention; it should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. An atomizer (1), a liquid storage cavity (11) is formed inside the atomizer (1), characterized in that, It includes a heating component (13) and an upper seat body (12) that at least partially surrounds the upper part of the heating component (13). The upper seat body (12) includes a first liquid inlet hole (1211) that connects the liquid storage cavity (11) and the heating component (13), and at least one second liquid inlet hole (1212). The cross-sectional area of the inner hole of the first liquid inlet hole (1211) is larger than the cross-sectional area of the inner hole of the at least one second liquid inlet hole (1212). The at least one second liquid inlet hole (1212) can assist in the air exchange of the liquid storage cavity (11). The upper seat body (12) further includes a main body part (121) and a nested part (122) that extends downward from the bottom of the main body part (121). The nested part (122) is sleeved outside the heating component (13). The first liquid inlet hole (1211) and the at least one second liquid inlet hole (1212) both penetrate through the main body part (121) longitudinally. The upper end surfaces of the first liquid inlet hole (1211), the at least one second liquid inlet hole (1212), and the upper end surface of the main body part (121) are flush. The atomizer (1) further includes a sealing sleeve (172). The sealing sleeve (172) is arranged between the nested part (122) and the heating component (13).

2. The atomizer (1) according to claim 1, characterized in that, The upper seat body (12) includes one first liquid inlet hole (1211) and one second liquid inlet hole (1212). The one first liquid inlet hole (1211) and the one second liquid inlet hole (1212) respectively penetrate through two opposite sides of the main body part (121) along the longitudinal direction longitudinally.

3. The atomizer (1) according to claim 2, characterized in that, The upper seat body (12) further includes a hollow structure (1213) formed between the one first liquid inlet hole (1211) and the one second liquid inlet hole (1212). The hollow structure (1213) is formed on the side of the main body part (121) facing the nested part (122), and the hollow structure (1213) is isolated from the one first liquid inlet hole (1211) and the one second liquid inlet hole (1212) respectively.

4. The atomizer (1) according to claim 3, characterized in that, The upper seat body (12) further includes a reinforcing rib (1214) arranged in the hollow structure (1213). The reinforcing rib (1214) divides the hollow structure (1213) into a first cavity (1215) and a second cavity (1216) that do not communicate with each other.

5. The atomizer (1) according to claim 1, characterized in that, The heating component (13) has a liquid absorption surface (131) facing the liquid storage cavity (11) and an atomization surface (132) arranged opposite to the liquid absorption surface (131). The atomizer (1) further includes a lower seat body (14). The heating component (13) is received in the space formed by the lower seat body (14) and the upper seat body (12), and the liquid absorption surface (131) and the atomization surface (132) of the heating component (13) are respectively opposite to the upper seat body (12) and the lower seat body (14).

6. The atomizer (1) according to claim 5, characterized in that, The lower base body (14) includes a base (141), a first support arm (142) extending from the base (141), and a second support arm (143) extending from the base (141) and disposed opposite to the first support arm (142), and the heating component (13) is supported between the first support arm (142) and the second support arm (143).

7. The atomizer (1) according to claim 6, characterized in that, An air inlet channel (151), an air outlet channel (153), and an atomization channel (152) communicating the air inlet channel (151) and the air outlet channel (153) are formed in the atomizer (1), and the first support arm (142) and the second support arm (143) are respectively disposed corresponding to the air inlet channel (151) and the air outlet channel (153); The lower base body (14) further includes a partition wall (144) for isolating the air inlet channel (151) and the atomization channel (152), and at least one air inlet micropore (1441) for communicating the air inlet channel (151) and the atomization channel (152) is provided on the partition wall (144).

8. The atomizer (1) according to claim 7, characterized in that, The diameter of each of the at least one air inlet micropore (1441) is 0.1 - 0.6 mm; A plurality of air intake micropores (1441) are provided on the baffle wall (144), and the total cross-sectional area of the plurality of air intake micropores (1441) is 1.2 - 2.0 mm 2 .

9. The atomizer (1) according to claim 7, characterized in that, A ventilation hole (1413) communicating the air inlet channel (151) and the outside of the atomizer (1) is further provided on the base (141).

10. The atomizer (1) according to claim 9, characterized in that, The atomizer (1) further includes an air pipe (163) disposed in the ventilation hole (1413), and the air inlet end of the air pipe (163) extends into the air inlet channel (151) and is higher than the surface of the base (141).

11. The atomizer (1) according to claim 10, characterized in that, The air inlet end of the air pipe (163) is not lower than the lowest position of the at least one air inlet micropore (1441).

12. The atomizer (1) according to claim 10, characterized in that, The air inlet end of the air pipe (163) is higher than the highest position of the at least one air inlet micropore (1441).

13. The atomizer (1) according to claim 6, characterized in that, The upper base body (12) is respectively snap-connected to the first support arm (142) and the second support arm (143).

14. An electronic atomization device, characterized in that, It includes the atomizer (1) according to any one of claims 1 - 13 and a power supply device (2) electrically connected to the atomizer (1).

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