CN116687066A - Electronic heating atomizing core and device for preventing liquid leakage - Google Patents

Abstract

The invention provides an electronic heating atomizing core and device for preventing liquid leakage. The electronic heating atomizing core includes a base body, a liquid guiding part for conducting liquid, and a heating part for heating and atomizing the liquid in the liquid guiding part , the base body is provided with a ventilation and storage channel, and the ventilation and storage channel includes a primary storage tank and a secondary storage tank. The base is provided with a ventilation gap. The electronically heated atomizing device includes the above-mentioned electronically heated atomizing core. During the continuous heating and atomization process of the device, the liquid in the liquid storage chamber is consumed; the ventilation gap of the electronic heating atomizing core can be connected with the liquid storage chamber to ensure that the gas in the liquid storage chamber can be replenished and balanced in time after the liquid is consumed. At the same time, the structure of the primary liquid storage tank, the ventilation liquid storage channel and the first step is used to balance the air pressure and lock the leaked liquid at the same time. It can also be locked well when some harsh environments such as air pressure changes and temperature changes Liquid prevents leakage.

Description

Electronic heating atomizing core and device for preventing liquid leakage

technical field

The invention relates to the field of electronic heating atomization, in particular to an electronic heating atomization core and a device for preventing liquid leakage.

Background technique

The electronic heating atomization device is a device that changes the liquid into a gas by electrically heating the atomized liquid. It mainly heats the atomized liquid to the boiling point through electric energy, and then forms an atomized steam that is mixed with air to form an aerosol substance. At present, it is mainly used in the field of electronic cigarettes, and it is also expanding to the fields of beauty and medical treatment. The electronic atomization device is mainly composed of two parts: a power supply device and an atomizer. At present, there are one-piece type and split type. The atomizer mainly consists of liquid storage, atomization core, and seals between parts. The atomizer needs to be able to store a certain amount of atomizing liquid, and it needs to ensure that the atomizing liquid can fully penetrate into the heating element of the atomizing core during use, and the continuous use of the atomizer should not cause poor oil supply, and it must also meet certain requirements. There will be no oil leakage during long-term storage and some harsh environments, so these problems need to be improved through the structure of the atomizer.

Contents of the invention

The technical problem to be solved by the present invention is to provide an electronically heated atomizing core and device for maintaining the balance of internal and external air pressure and preventing liquid leakage, aiming at the above-mentioned defects in the related art.

The technical solutions adopted by the present invention to solve the technical problems include: providing an electronic heating atomizing core, including a base body, a liquid guide for conducting liquid, and a heating element for heating and atomizing the liquid of the liquid guide, The base body is provided with a housing cavity and a liquid inlet connecting the outside of the base body with the housing cavity, the liquid guiding element and the heating element are arranged in the housing cavity, and the base body is provided with a ventilating liquid storage chamber. channel, the air exchange liquid storage channel includes a primary liquid storage tank and a secondary liquid storage tank. The substrate is provided with an air exchange gap, and the air exchange gap communicates with one end of the primary liquid storage tank. The primary liquid storage tank The groove is connected to the secondary liquid storage tank, and the secondary liquid storage tank extends away from the ventilation gap; the inner surface of the primary liquid storage tank is not flush with the inner surface of the secondary liquid storage tank , to form a first step transitioning from the primary liquid storage tank to the secondary liquid storage tank; the ventilation storage channel communicates with the outside of the base body at a position away from the ventilation gap for external Air enters the ventilation and liquid storage channel.

Preferably, the base body includes a main body and a seal provided on the main body, the main body is provided with a first ventilation hole, and the first ventilation hole communicates with one end of the ventilation and liquid storage channel, so The sealing member is provided with a second ventilation hole, the sealing member blocks part of the first ventilation hole, and defines the ventilation gap with the first ventilation hole.

Preferably, a protruding portion is provided on a side of the sealing member facing the main body, and the protruding portion blocks a part of the first ventilation hole.

Preferably, the first ventilation hole is staggered from the second ventilation hole, the ventilation gap includes a first gap and a second gap, the first gap communicates with the ventilation and liquid storage channel, and the second gap includes a first gap and a second gap. The base body communicates with the first gap and the second ventilation hole, and the first gap is not parallel to the second gap.

Preferably, the opening size of the ventilation gap is smaller than the opening size of the ventilation storage channel.

Preferably, the opening size of the ventilation gap is less than or equal to 0.5mm ² .

Preferably, the inner wall of the ventilation and storage channel is inclined, and the opening size of the ventilation and storage channel gradually increases from a position close to the ventilation gap to a position away from the ventilation gap.

Preferably, the ventilation and liquid storage channel includes a first main channel, a second main channel and a communication channel, the first main channel and the second main channel extend along the first direction and are arranged at intervals along the second direction , the communicating passage is arranged between the first main passage and the second main passage, and communicates the first main passage and the second main passage, and the first direction is not parallel to the first main passage Two directions.

Preferably, the size of the first main channel and the second main channel along the third direction is larger than the size of the communication channel along the third direction, so as to form the secondary liquid storage tank; the third The direction is not parallel to the first direction and the second direction.

Preferably, the communication channel communicates with the middle of the first main channel and the second main channel, so that both sides of the first main channel and the second main channel in the third direction are The secondary reservoir is formed.

Preferably, the primary liquid storage tank is arranged on the side of the communication channel and the second main channel close to the ventilation gap, and communicates with the first main channel, the second main channel and the The communication channel is close to one end of the ventilation gap.

Preferably, the width of the primary liquid storage tank is equivalent to that of the communication channel.

Preferably, the width of the primary liquid storage tank and the communication channel is greater than the width of the secondary liquid storage tank.

Preferably, inside the air exchange liquid storage channel, the surface at the opening of the air exchange gap communicating with the primary liquid storage tank has a drop from the inner surface of the primary liquid storage tank, forming a communication channel from the air exchange gap. The opening of the primary liquid storage tank transitions to a second step on the inner surface of the primary liquid storage tank.

Preferably, an end of the ventilation storage channel away from the ventilation gap leads to the outside of the base body.

Preferably, a return channel is provided in the base body, communicates with the ventilation storage channel, and leads to the liquid guide, so that the liquid in the ventilation storage channel can flow back to the liquid guide .

Preferably, the return channel communicates with an end of the ventilation storage channel away from the ventilation gap.

The technical solutions adopted by the present invention to solve the technical problems include: providing an electronic heating atomization device, including a casing and the above-mentioned electronic heating atomization core set in the casing, and the casing is provided with a The air mist generated by the electronically heated atomizing core flows out of the external air passage, and the housing is provided with a liquid storage tank connected to the liquid inlet for storing liquid, and the ventilation gap communicates with the liquid storage tank.

The implementation of the technical solution of the present invention has at least the following beneficial effects: the electronic heating atomizing core and device are provided with a liquid storage chamber, and liquid is stored in the liquid storage chamber, which is used to supply the liquid guide, the heating element and the guide The liquid part contacts and energizes to generate heat to heat and atomize the liquid in the liquid guide part. During the continuous heating and atomization process of the device, the liquid in the liquid storage chamber is consumed; the ventilation gap of the electronic heating atomization core can be connected with the liquid storage chamber , to ensure that after the liquid is consumed in the liquid storage tank, the gas can replenish the balanced air pressure in time. At the same time, the primary liquid storage tank, the ventilation liquid storage channel and the structure of the first step are used to balance the air pressure and lock the leaking liquid at the same time. Some harsh environments such as air pressure changes and temperature changes can also lock the liquid well to prevent leakage.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the descriptions of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is a perspective view of an electronically heated atomizing core according to an embodiment of the present invention.

Fig. 2 is an exploded view of the electronically heated atomizing core in Fig. 1 .

Fig. 3 is a three-dimensional cross-sectional view of the electronically heated atomizing core in Fig. 1 .

FIG. 4 is a partial enlarged view of the R portion in FIG. 3 .

Fig. 5 is a cross-sectional view at position A-A of Fig. 1 .

FIG. 6 is a partially enlarged view of a portion P in FIG. 5 .

Fig. 7 is an exploded view of the sealing part and the main part of the electronically heated atomizing core of Fig. 5 (the cutting position is the position A-A of Fig. 1 ).

Fig. 8 is an exploded view of the sealing part and the main part of the electronically heated atomizing core in Fig. 1 .

FIG. 9 is a partial enlarged view of the Q portion in FIG. 8 .

FIG. 10 is a bottom view of the main body of FIG. 8 .

FIG. 11 is a partially enlarged view of a portion T in FIG. 10 .

Fig. 12 is a schematic diagram of the liquid entering the ventilation gap of the electronic heating atomizing core in Fig. 1 (the cutting position is the A-A position of Fig. 1, and the air pressure received by the liquid in the ventilation gap is balanced with the air pressure of the ventilation storage channel).

Fig. 13 is a schematic diagram of the liquid entering the ventilating gap of the electronic heating atomizing core in Fig. 1 (the cutting position is the position A-A in Fig. 1 , and the pressure received by the liquid in the ventilating gap is greater than that of the ventilating liquid storage channel).

Fig. 14 is a schematic diagram of the liquid entering the ventilating gap of the electronic heating atomizing core in Fig. 1 (the cutting position is the position A-A in Fig. 1, and the air pressure received by the liquid in the ventilating gap is lower than that of the ventilating liquid storage channel).

Figure 15 is a schematic diagram of the liquid entering the ventilation gap of the electronic heating atomizing core in Figure 1 (the cutting position is the A-A position of Figure 1, the liquid in the ventilation and liquid storage channel flows back from the return tank to the liquid guide in the housing chamber ).

Fig. 16 is a perspective view of an electronic heating atomization device according to an embodiment of the present invention.

Fig. 17 is a cross-sectional view at position B-B of Fig. 16 .

The numbers in the figure indicate: electronic heating atomizing core 1, base body 10, main body part 100, ventilation liquid storage channel 1000, primary liquid storage tank 1011, secondary liquid storage tank 1012, first main channel 1021, second main channel 1022, communication channel 1023, first step 1031, second step 1032, first ventilation hole 1040, accommodating chamber 1050, return passage 110, seal 120, second ventilation hole 1201, raised portion 1202, ventilation gap 130, the first gap 1301, the second gap 1302, the liquid guide 11, the heating element 12, the casing 2, the liquid storage chamber 21, the air passage 22, the first direction 31, the second direction 32, the third direction 33, the liquid 4 .

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that if the orientation or positional relationship indicated by "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner" and "outer" in the text is based on the drawings The shown orientations or positional relationships, configurations and operations in specific orientations are only for the convenience of describing the technical solutions, but do not indicate that the devices or components referred to must have specific orientations, and thus should not be construed as limiting the present invention. It should also be noted that, unless otherwise clearly stipulated and limited, if terms such as "installation", "connection", "connection", "fixation" and "setting" appear in the text, they should be interpreted in a broad sense, for example, it can be a fixed connection , can also be detachably connected, or integrated; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of the two components or the interaction relationship between the two components. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element, or one or more intervening elements may also be present. If the terms "first", "second" and the like appear in the text, they are only for the convenience of describing the technical solution, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. A feature of "first", "second", etc. may expressly or implicitly include one or more of such features. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

Referring to Figures 1-15, an electronic heating atomizing core 1 for preventing liquid leakage in an embodiment of the present invention includes a base 10, a liquid guide 11 for conducting liquid 4, and a liquid guide 11 for heating atomization The heating element 12 of the liquid 4, the base body 10 is provided with a housing chamber 1050 communicating with the outside of the base body (10) and the liquid inlet (104) of the housing chamber (1050), and the liquid inlet (104) is used for external The liquid enters the containing cavity, is absorbed and conducted by the liquid guiding element (11), and is heated and atomized by the heating element 12. The liquid guiding element 11 and the heating element 12 are arranged in the containing cavity 1050, and the base body 10 is provided with a ventilation and liquid storage channel 1000. The ventilation and storage channel 1000 includes a primary storage tank 1011 and a secondary storage tank 1012. One side of the substrate 10 in the first direction 31 is provided with a ventilation gap 130, and the ventilation gap 130 communicates with one end of the primary storage tank 1011. The primary liquid storage tank 1011 is connected with the secondary liquid storage tank 1012, and the secondary liquid storage tank 1012 extends away from the ventilation gap 130; the inner surface of the primary liquid storage tank 1011 is not flush with the inner surface of the secondary liquid storage tank 1012, To form the first step 1031 transitioning from the primary liquid storage tank 1011 to the secondary liquid storage tank 1012; the ventilation storage channel 1000 communicates with the outside of the base body 10 at a position away from the ventilation gap 130, so that external air can enter the ventilation storage tank. Liquid channel 1000.

When the electronic heating atomizing core 1 is applied to an electronic heating atomizing device, a liquid storage bin 21 is provided on the device, and the liquid storage bin 21 is connected to the liquid inlet 104, and the liquid 4 is stored in the liquid storage bin 21 for passing through The liquid inlet 104 is supplied to the liquid guide 11, and the heating element 12 is in contact with the liquid guide 11 and energized to generate heat to heat and atomize the liquid 4 of the liquid guide 11. During the continuous heating and atomization process of the device, the liquid in the liquid storage chamber 21 4 is consumed; the ventilation gap 130 of the electronic heating atomizing core 1 can communicate with the liquid storage bin 21 to ensure that after the liquid 4 is consumed in the liquid storage bin 21, the gas can replenish the balance air pressure in time, and at the same time, the primary liquid storage tank 1011 The structure of the ventilating liquid storage channel 1000 and the first step 1031 is used to balance the air pressure and lock the leaking liquid 4 at the same time. When some harsh environments such as air pressure changes and temperature changes can also better lock the liquid 4 to prevent leakage. leak.

Specifically, referring to Fig. 11, when the liquid 4 enters the ventilation storage channel 1000 from the ventilation port, it will first leak into the ventilation gap 130, and the tension of the liquid 4 will make the liquid surface evenly spread out to form a liquid The mask, the liquid mask will be sealed so that the liquid storage bin 21 forms an airtight space;

At this time, when some factors (such as taking an airplane or in a region with a relatively high altitude, the external air pressure becomes smaller, or when the user sucks) will cause the air pressure in the liquid storage chamber 21 to be greater than the external air pressure, the gas pressure squeezes the liquid 4 At this time, the liquid 4 will be squeezed from the ventilation gap 130 into the primary liquid storage tank 1011, referring to Figure 11, it will first be stored in the primary liquid storage tank 1011, and when the liquid storage in this part is full, the liquid level reaches the first At a step 1031, the liquid 4 will be guided by the above-mentioned secondary liquid storage tank 1012 and evenly distributed throughout the ventilation and liquid storage channel 1000, so as to keep the liquid level at the first step 1031 at a constant height;

And when the external air pressure changes from low to high or due to the consumption of liquid 4, the air pressure in the liquid storage chamber 21 is lower than the external air pressure. At this time, the air tends to enter the liquid storage chamber 21. See Figure 13. At this time, the primary liquid storage The liquid film formed here in the tank 1011 will be squeezed by the external air pressure because it blocks the entry of air, and the liquid 4 will be squeezed into the liquid storage bin 21 at this time, so that the space of the liquid 4 in the liquid storage bin 21 and the air occupied by the gas are small, Thus the air pressure becomes higher to achieve equilibrium. Referring to Fig. 12, when the liquid 4 in the ventilating liquid storage channel 1000 is squeezed by the gas into the liquid storage chamber 21 from here, there is still a relatively large pressure difference, and the air pressure will break through the liquid film and further enter the liquid storage chamber 21, thereby improving the storage capacity. The air pressure in the space in the liquid tank 21 realizes pressure balance. Or in some cases, the air pressure changes suddenly, and the gas directly breaks through the liquid membrane through the ventilation channel and enters the liquid storage chamber 21. At this time, the structure of the intersecting primary liquid storage tank 1011 and secondary liquid storage tank 1012 can also be very good. Storage liquid 4 avoids leakage.

2-10, preferably, the base body 10 includes a main body 100 and a seal 120 provided on the main body 100, the main body 100 is provided with a first ventilation hole 1040 on one side in the first direction 31, the first The air exchange hole 1040 is connected to one end of the air exchange liquid storage channel 1000 along the first direction 31, and the sealing member 120 is provided with a second air exchange hole 1201, and the sealing member 120 blocks part of the first air exchange hole 1040, and is connected with the first air exchange hole 1040. The hole 1040 delimits the ventilation gap 130 .

Referring to Fig. 2-7, specifically, the opening of the first ventilation hole 1040 is relatively large, and the side of the sealing member 120 facing the main body 100 is provided with a raised portion 1202, and the raised portion 1202 blocks the first ventilation hole 1040 part, so that the sealing member 120 blocks the part that blocks the ventilation hole and communicates with the first main passage 1021, leaving a small ventilation gap 130, which facilitates the production of the main body 100, because if it is directly formed on the main body 100 Too small a hole and the mold is difficult to produce and has a lower lifespan.

Referring to Figures 2-7, specifically, the first ventilation hole 1040 is staggered from the second ventilation hole 1201, the ventilation gap 130 includes a first gap 1301 and a second gap 1302, and the first gap 1301 communicates with the ventilation and liquid storage channel 1000 , the second base 10 communicates with the first gap 1301 and the second ventilation hole 1201 , and the first gap 1301 is not parallel to the second gap 1302 . Preferably, the second ventilation hole 1201 is disposed on one side of the seal 120 in the first direction 31 , the first gap 1301 extends along the first direction 31 , and the second gap 1302 extends along the second direction 32 .

Referring to Figures 2-6, preferably, the opening size of the ventilation gap 130 is smaller than the opening size of the ventilation storage channel 1000, so that the purpose of the design is to utilize the capillary tension of the liquid 4 in a narrow position to prevent the liquid 4 from being damaged by its own gravity and electrons. The liquid 4 in the liquid storage chamber 21 of the heating atomization device leaks under pressure, and the purpose of the wider ventilating liquid storage channel 1000 below is to prevent the liquid storage chamber 21 The rise in internal air pressure will squeeze out part of the liquid 4 into the ventilation gap 130, and the extruded e-liquid will be stored in the oil storage tank. When the pressure is restored, it can be pressed back to the liquid storage tank 21 from the ventilation storage channel 1000 by the external air pressure. .

Specifically, for the size of the electronic heating atomizing core 1 used in electronic cigarettes, the opening size of the ventilation gap 130 is less than or equal to 0.5mm ² , because the ventilation gap 130 is too large to easily leak liquid, and a small area can form capillary grooves. When the capillary force provided by the tension of the liquid 4 is greater than gravity, the liquid 4 will not leak.

Referring to FIG. 6 , preferably, the inner wall of the ventilation and storage channel 1000 is inclined, and the opening size of the ventilation and storage channel 1000 gradually increases from a position close to the ventilation gap 130 to a position away from the ventilation gap 130. When the electronic heating atomizing core 1 is used in the electronic heating atomizing device, the use state is usually the state where the ventilation gap 130 of the electronic heating atomizing core 1 faces upward, so when entering the ventilation storage liquid from the ventilation gap 130 When the liquid 4 in the channel 1000 is less, the above-mentioned size design can prevent the liquid 4 from dripping down due to the narrow capillary tension at the top. At the same time, doing so can facilitate mold drafting.

Referring to Fig. 3-8, preferably, the ventilation storage channel 1000 includes a first main channel 1021, a second main channel 1022 and a communication channel 1023, the first main channel 1021 and the second main channel 1022 extend along the first direction 31, And arranged at intervals along the second direction 32, the communication passage 1023 is arranged between the first main passage 1021 and the second main passage 1022, and communicates with the first main passage 1021 and the second main passage 1022, and the first direction 31 is not parallel to the first main passage 1022. Two directions 32 , preferably, the first direction 31 is perpendicular to the second direction 32 .

Referring to FIG. 11 , preferably, the dimensions C1 and C2 of the first main channel 1021 and the second main channel 1022 along the third direction 33 are greater than the dimension A of the communication channel 1023 along the third direction 33 to form a secondary liquid storage tank 1012, And the first main channel 1021, the second main channel 1022 and the communication channel 1023 form an intersecting structure, the capillary tension of the liquid 4 at the intersecting position is relatively high, which can better store the liquid 4 to prevent leakage; the third direction 33 is not parallel to the first The direction 31 and the second direction 32, preferably, the first direction 31, the second direction 32 and the third direction 33 are perpendicular to each other. Preferably, the communication channel 1023 communicates with the middle of the first main channel 1021 and the second main channel 1022, so that both sides of the first main channel 1021 and the second main channel 1022 are formed with secondary reservoirs in the third direction 33. Tank 1012. Preferably, the primary storage tank 1011 is arranged on the side of the communication channel 1023 and the second main channel 1022 close to the ventilation gap 130, and communicates with the first main channel 1021, the second main channel 1022 and the communication channel 1023 close to the ventilation gap 130 one end.

Preferably, referring to FIG. 4, the width of the primary liquid storage tank 1011 is equivalent to that of the communication channel 1023. In the embodiment of FIG. Yes, the inner surface of the communication channel 1023 is flush with the inner surface of the primary storage tank 1011 .

Referring to FIG. 11 , preferably, the width A of the primary liquid storage tank 1011 and the communication channel 1023 is greater than the widths B1 and B2 of the secondary liquid storage tank 1012. The purpose of doing this is to make the width of the secondary liquid storage tank 1012 narrower. With greater capillary tension, the liquid 4 in the primary liquid storage tank 1011 and the communication channel 1023 can be guided and circulated to various parts of the secondary liquid storage tank 1012 through the greater capillary tension of the secondary liquid storage tank 1012 after reaching a certain amount. More liquid storage space, and at the same time the primary liquid storage tank 1011 is closer to the ventilation port. If the liquid 4 stored in the primary liquid storage tank 1011 is too much, the pressure difference required for ventilation will be greater, so this design can avoid primary Excessive liquid 4 accumulates in the liquid storage tank 1011 and the communication channel 1023 .

Referring to FIG. 4 , preferably, inside the ventilation storage channel 1000 , the surface at the opening of the ventilation gap 130 connected to the primary storage tank 1011 has a drop from the inner surface of the primary storage tank 1011 , forming a connection between the ventilation gap 130 and the primary storage tank 1011 . The opening of the liquid storage tank 1011 transitions to the second step 1032 on the inner surface of the primary liquid storage tank 1011. When the liquid 4 outside the atomizing core enters the primary liquid storage tank 1011 through the ventilation gap 130 due to the change of air pressure, along with the liquid 4 As the accumulation increases, the liquid level is first maintained at the first step 1031 to form a liquid film. When breaking through the first step 1031, the liquid level reaches the second step 1032 to maintain the liquid level and then form a liquid film.

Referring to FIGS. 3-9 , preferably, one end of the ventilation and storage channel 1000 away from the ventilation gap 130 leads to the outside of the base body 10 for external air to enter the ventilation and storage channel 1000 .

Referring to FIGS. 3-9 , preferably, a return channel 110 is provided in the base body 10 , communicates with the ventilation storage channel 1000 , and communicates with the accommodating chamber 1050 , and leads to the liquid guide 11 for supplying the liquid 4 in the ventilation storage channel 1000 . Return to the liquid guide 11. The function of the return channel 110 is that when the liquid 4 in the ventilation storage channel 1000 in the base body 10 accumulates too much, when the liquid level reaches the return tank, it can flow to the guide liquid 11 through the return tank. , the liquid guiding part 11 absorbs the liquid 4, and when working, the replacement page in the ventilation and liquid storage channel 1000 will be heated and atomized again by the heating part 12, so as to prevent the liquid 4 in the ventilation and liquid storage channel 1000 from being full and seepage It leaks out of the electronic heating atomizing core 1.

Referring to FIGS. 3-9 , preferably, the return channel 110 communicates with the end of the ventilation and storage channel 1000 away from the ventilation gap 130 .

Referring to Figures 16-17, an electronic heating atomization device according to an embodiment of the present invention includes a casing 2 and the above-mentioned electronic heating atomization core 1 set in the casing 2, and the casing 2 is provided with an external connection for supplying electrons. The mist generated by heating the atomizing core 1 flows out of the external air passage 22, and the housing 2 is provided with a liquid storage bin 21 connected to the liquid inlet 104 for storing the liquid 4, and the liquid guide 11 conducts the liquid 4 in the liquid storage bin 21 To the heat-generating element 12 for depyrolysis and atomization, the sealing element 120 is arranged between the shell 2 and the main body 100 to form a seal, and the ventilation gap 130 communicates with the liquid storage chamber 21 .

To sum up, in the electronic heating atomizing core 1 and the electronic heating atomizing device, the ventilation gap 130 of the electronic heating atomizing core 1 can communicate with the liquid storage chamber 21 to ensure that the liquid 4 in the liquid storage chamber 21 is consumed. The gas can replenish the balanced air pressure in time. At the same time, the structure of the primary liquid storage tank 1011, the ventilation liquid storage channel 1000 and the first step 1031 is used to balance the air pressure and lock the leaking liquid 4 at the same time. When changing, the liquid 4 can be better locked to prevent leakage. The electronic heating atomizing core 1 is also provided with a return channel 110. When the liquid 4 in the ventilation storage channel 1000 in the base body 10 accumulates too much, when the liquid level reaches the return channel, it can flow through the return channel to the liquid guide 11. The liquid guiding part 11 absorbs the liquid 4, and the replacement page in the ventilation and liquid storage channel 1000 will be heated and atomized by the heating part 12 again when working, so as to prevent the liquid 4 in the ventilation and liquid storage channel 1000 from being full and leaking Out of the electronic heating coil 1.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications, combinations and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of the claims of the present invention.

Claims (18)

1. An electronic heating atomization core (1) for preventing liquid leakage is characterized by comprising a base body (10), a liquid guide piece (11) for guiding liquid and a heating piece (12) for heating and atomizing the liquid of the liquid guide piece (11), wherein a containing cavity (1050) and a liquid inlet (104) communicated with the outside of the base body (10) and the containing cavity (1050) are arranged in the base body (10), the liquid guide piece (11) and the heating piece (12) are arranged in the containing cavity (1050), a ventilation liquid storage channel (1000) is arranged in the base body (10), the ventilation liquid storage channel (1000) comprises a primary liquid storage groove (1011) and a secondary liquid storage groove (1012), a ventilation gap (130) is arranged on the base body (10), the ventilation gap (130) is communicated with one end of the primary liquid storage groove (1011), the primary liquid storage groove (1011) is connected with the secondary liquid storage groove (1012), and the secondary liquid storage groove (1012) extends along the direction away from the ventilation gap (130); -the inner side of the primary reservoir (1011) is not flush with the inner side of the secondary reservoir (1012) to form a first step (1031) transitioning from the primary reservoir (1011) to the secondary reservoir (1012); the ventilation liquid storage channel (1000) is communicated with the outside of the base body (10) at a position far away from the ventilation gap (130) so as to allow external air to enter the ventilation liquid storage channel (1000).

2. The electrically heated atomizing core (1) of claim 1, wherein said base body (10) comprises a main body member (100) and a sealing member (120) provided on said main body member (100), said main body member (100) is provided with a first ventilation hole (1040), said first ventilation hole (1040) is communicated with one end of said ventilation liquid storage channel (1000), said sealing member (120) is provided with a second ventilation hole (1201), and said sealing member (120) blocks a part of said first ventilation hole (1040) to define said ventilation gap (130) with said first ventilation hole (1040).

3. An electrically heated atomizing core (1) according to claim 2, characterized in that a side of the sealing member (120) facing the main body member (100) is provided with a boss (1202), the boss (1202) blocking a portion of the first ventilation hole (1040).

4. The electrically heated atomizing core (1) of claim 2, wherein said first ventilation holes (1040) are offset from said second ventilation holes (1201), said ventilation gap (130) comprises a first gap (1301) and a second gap (1302), said first gap (1301) is in communication with said ventilation reservoir (1000), a second said base (10) is in communication with said first gap (1301) and said second ventilation holes (1201), said first gap (1301) is non-parallel with said second gap (1302).

5. The electrically heated atomizing core (1) according to claim 1, characterized in that the opening size of said ventilation gap (130) is smaller than the opening size of said ventilation reservoir channel (1000).

6. An electrically heated atomizing core (1) according to claim 5, characterized in that the opening size of said ventilation gap (130) is 0.5mm or less ² 。

7. The electrically heated atomizing core (1) of claim 1, wherein an inner wall of said ventilation liquid storage channel (1000) is inclined, and an opening size of said ventilation liquid storage channel (1000) is gradually increased from a position close to said ventilation gap (130) to a position distant from said ventilation gap (130).

8. The electrically heated atomizing core (1) of claim 1, wherein said ventilation liquid storage channel (1000) comprises a first main channel (1021), a second main channel (1022) and a communication channel (1023), said first main channel (1021), said second main channel (1022) extending in a first direction (31) and being arranged at intervals along a second direction (32), said communication channel (1023) being arranged between said first main channel (1021) and said second main channel (1022) and communicating said first main channel (1021) and said second main channel (1022), said first direction (31) being non-parallel to said second direction (32).

9. The electrically heated atomizing core (1) of claim 8, wherein a dimension of said first main channel (1021) and said second main channel (1022) along a third direction (33) is greater than a dimension of said communication channel (1023) along said third direction (33) to form said secondary reservoir (1012); the third direction (33) is not parallel to the first direction (31) and the second direction (32).

10. The electrically heated atomizing core (1) according to claim 9, wherein said communication channel (1023) communicates with a middle portion of said first main channel (1021) and said second main channel (1022) such that both sides of said first main channel (1021) and said second main channel (1022) in said third direction (33) are formed with said secondary reservoir (1012).

11. The electrically heated atomizing core (1) according to claim 8, wherein said primary liquid reservoir (1011) is provided on a side of said communication passage (1023) and said second main passage (1022) close to said ventilation gap (130), and communicates with one end of said first main passage (1021), said second main passage (1022) and said communication passage (1023) close to said ventilation gap (130).

12. An electrically heated atomizing core (1) according to claim 11, characterized in that said primary reservoir (1011) is of comparable width to said communication channel (1023).

13. An electrically heated atomizing core (1) according to claim 12, characterized in that the width of said primary reservoir (1011) and said communication channel (1023) is greater than the width of said secondary reservoir (1012).

14. An electrically heated atomizing core (1) according to claim 1, characterized in that, inside said ventilation liquid storage channel (1000), a surface of said ventilation gap (130) at which said ventilation gap communicates with an opening of said primary liquid storage tank (1011) is located at a level difference from an inner surface of said primary liquid storage tank (1011), forming a second step (1032) which transitions from said ventilation gap (130) at which said ventilation gap communicates with said opening of said primary liquid storage tank (1011) to said inner surface of said primary liquid storage tank (1011).

15. An electrically heated atomizing core (1) according to claim 1, characterized in that the end of the ventilation reservoir channel (1000) remote from the ventilation gap (130) opens out to the outside of the base body (10).

16. An electrically heated atomizing core (1) according to claim 1, characterized in that a return channel (110) is provided in the base body (10), communicates with the ventilation reservoir channel (1000) and opens into the liquid guide (11) for the liquid in the ventilation reservoir channel (1000) to return to the liquid guide (11).

17. The electrically heated atomizing core (1) of claim 16, wherein said return channel (110) communicates with an end of said ventilation reservoir channel (1000) remote from said ventilation gap (130).

18. An electronic heating atomizing device comprises a shell (2) and an electronic heating atomizing core (1) arranged in the shell (2), wherein an air passage (22) which is communicated with the outside and used for enabling aerosol generated by the electronic heating atomizing core (1) to flow out of the outside is arranged in the shell (2), a liquid storage bin (21) which is communicated with a liquid inlet (104) and used for storing liquid is arranged in the shell (2), and a ventilation gap (130) is communicated with the liquid storage bin (21).