Atomizer and electronic atomization device

Abstract

The utility model relates to an atomizer and an electronic atomization device.The electronic atomization device comprises the atomizer and a power supply unit, the atomizer comprises a shell assembly, an atomization assembly and a pressure relief assembly, an oil storage cavity is formed in the shell assembly, a first air inlet and an air outlet are formed in the two opposite ends of the shell assembly, and the atomization assembly is arranged in the shell assembly; the atomization assembly is provided with an atomization cavity communicated with the first air inlet and the air outlet, the atomization cavity is isolated from the oil storage cavity, an oil inlet hole is formed in the cavity wall of the atomization cavity, and the pressure relief assembly is arranged in the oil storage cavity, sleeves the atomization assembly and is provided with a first end close to the air outlet and a second end close to the first air inlet; the first end and the second end are provided with a first pressure relief hole and a second pressure relief hole respectively, and the first pressure relief hole and the second pressure relief hole are communicated with the oil storage cavity and the oil inlet hole, so that air between the oil storage cavity and the atomization cavity can circulate mutually no matter the electronic atomization device is arranged upside down or upside down. Therefore, the problem of oil leakage of the electronic atomization device caused by unbalanced internal and external pressure of the oil storage cavity is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of atomization technology, in particular to an atomizer and an electronic atomization device. BACKGROUND

[0002] The electronic atomization device, also known as electronic cigarette, is a device for generating aerosol by heating and atomizing the atomization medium for users to smoke to simulate the feeling of smoking. As a substitute for cigarettes, it is deeply loved by the majority of smokers. The traditional electronic atomization device is composed of an atomizer and a power supply unit. The atomizer has an oil storage cavity and an atomization core inside. The tobacco tar is stored in the oil storage cavity, and the power supply unit supplies power to the atomization core to heat and atomize the tobacco tar in the oil storage cavity to generate aerosol for users to smoke.

[0003] In order to improve the suction amount of the electronic atomization device, some large-capacity pre-oil electronic atomization devices and open oil filling (i.e. users open the oil filling plug to fill oil) electronic atomization devices have appeared on the market. Although the above types of electronic atomization devices have the advantage of large oil storage capacity, due to the fact that most of the oil storage cavities use fixed sealing structures, when the user opens the oil filling plug to fill oil or performs high temperature test, it is easy to cause oil leakage due to the imbalance of the internal and external pressures of the oil storage cavity. For example, when the external air pressure or temperature changes, the internal pressure of the oil storage cavity may be higher than the external air pressure, causing the tobacco tar in the oil storage cavity to leak from the center hole of the atomization tube to the outside of the atomizer under the action of the pressure difference, affecting the user's experience. Content of the utility model

[0004] Therefore, it is necessary to provide an atomizer and an electronic atomization device comprising the atomizer to solve the above problems that the existing electronic atomization device is easy to cause oil leakage due to the imbalance of the internal and external pressures of the oil storage cavity when the user opens the oil filling plug to fill oil or performs high temperature test.

[0005] According to one aspect of the present application, an atomizer is provided, comprising:

[0006] A housing assembly has an oil storage cavity inside, and first air inlet and air outlet are formed at opposite ends of the housing assembly;

[0007] An atomization assembly is arranged in the housing assembly, and the atomization assembly has an atomization cavity communicating with the first air inlet and the air outlet. An oil inlet hole is formed in the atomization assembly, and the atomization cavity communicates with the oil storage cavity through the oil inlet hole;

[0008] A pressure relief assembly is disposed in the oil storage cavity and sleeved on the atomization assembly, and has a first end close to the air outlet and a second end close to the first air inlet. The first end is provided with a first pressure relief hole communicating the oil storage cavity and the oil inlet hole. The second end is provided with a second pressure relief hole communicating the oil storage cavity and the oil inlet hole.

[0009] In one of the embodiments, the pressure relief assembly comprises a first atomization tube sleeved on the atomization assembly and a first air-permeable oil guide cotton. An inner wall of the first atomization tube is formed with a mounting groove with an outer wall of the atomization assembly. The first oil guide cotton is filled in the mounting groove. At least part of the first pressure relief hole is formed in the first oil guide cotton. The second pressure relief hole is formed on a tube wall of the first atomization tube and communicates the mounting groove. The first oil guide cotton covers an outer side opening of the oil inlet hole and an inner side opening of the second pressure relief hole.

[0010] In one of the embodiments, the pressure relief assembly further comprises a first sealing member connected to the housing assembly and connected to an end of the first atomization tube close to the air outlet. Part of the first pressure relief hole penetrates the first sealing member, and the other part is formed in the first oil guide cotton.

[0011] In one of the embodiments, the pressure relief assembly further comprises an air release seat sleeved on an end of the first atomization tube close to the first air inlet and covering the second pressure relief hole.

[0012] In the direction from the first air inlet to the air outlet, an outer diameter of the air release seat gradually decreases, so that an inner wall of the air release seat and an outer wall of the first atomization tube are configured to form an air release cavity communicating the second pressure relief hole. The air release seat is provided with a third pressure relief hole. The oil storage cavity communicates the air release cavity through the third pressure relief hole.

[0013] In one of the embodiments, the air release seat is further provided with a plurality of protrusions arranged at intervals around a central axis of the air release seat on a peripheral side of an end with a larger outer diameter. Each of the protrusions is respectively provided with the third pressure relief hole.

[0014] In one of the embodiments, the first pressure relief hole has at least two, and all the first pressure relief holes are arranged in pairs. Each pair of the first pressure relief holes is arranged on two sides of a central axis of the pressure relief assembly along a radial direction defined by the central axis.

[0015] In one of the embodiments, the pressure relief assembly further comprises a pressure relief tube inserted in the first pressure relief hole.

[0016] In one embodiment, the atomizing assembly includes a second atomizing tube and an atomizing core. The atomizing cavity extends through the two opposite ends of the second atomizing tube along its own axial direction. The oil inlet is opened on the tube wall of the second atomizing tube. The pressure relief assembly is attached to the tube wall of the second atomizing tube and covers the outer opening of the oil inlet. The atomizing core is disposed inside the atomizing cavity.

[0017] In one embodiment, the atomizing core includes a heating element connected to a breathable second oil-guiding cotton, the second oil-guiding cotton being attached to the cavity wall of the atomizing chamber and covering the inner opening of the oil inlet.

[0018] According to another aspect of this application, an electronic atomizing device is provided, including a power supply unit and an atomizer as described in any of the above embodiments, the atomizer being connected to the power supply unit, and the power supply unit having a second air inlet communicating with the first air inlet.

[0019] The aforementioned atomizer and electronic atomizing device, by installing a pressure relief component outside the atomizing assembly, and opening a first pressure relief hole at the first end of the pressure relief component near the air outlet, connecting the oil storage chamber and the oil inlet, and opening a second pressure relief hole at the second end of the pressure relief component near the first air inlet, connecting the oil storage chamber and the oil inlet, allows air to flow between the oil storage chamber and the atomizing chamber through the first or second pressure relief hole when the pressure difference between them is unbalanced, thereby achieving pressure balance between the oil storage chamber and the atomizing chamber. Furthermore, regardless of whether the electronic atomizing device is upright or inverted, air can circulate between the oil storage chamber and the atomizing chamber, ensuring constant pressure balance. Therefore, with a simple structure and low manufacturing cost, it solves the oil leakage problem that easily occurs in existing pre-filled electronic atomizing devices or open-type non-filled electronic atomizing devices due to pressure imbalance inside and outside the oil storage chamber. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the appearance of an electronic atomizing device provided in an embodiment of this application.

[0021] Figure 2 This is a top view of an electronic atomizing device provided in an embodiment of this application.

[0022] Figure 3 for Figure 2 Sectional view along the AA direction.

[0023] Figure 4 An explosion diagram of an electronic atomizing device provided in an embodiment of this application.

[0024] Figure 5 for Figure 3 A magnified view of region B in the middle.

[0025] Figure 6 The explosion schematic diagram of the pressure relief assembly in the atomizer provided by an embodiment of the present application.

[0026] Figure 7 The Figure 3 enlarged schematic diagram of the region C.

[0027] Figure 8 The internal structure cross-sectional view of the atomizer when placed in an upright position provided by an embodiment of the present application.

[0028] Figure 9 The internal structure cross-sectional view of the atomizer when placed in an inverted position provided by an embodiment of the present application.

[0029] Figure 10 The structure schematic diagram of the pressure relief seat of the pressure relief assembly in the atomizer provided by an embodiment of the present application.

[0030] Figure 11 The internal structure cross-sectional view of the atomizer when placed in a horizontal position provided by an embodiment of the present application. Figure 1 .

[0031] Figure 12 The internal structure cross-sectional view of the atomizer when placed in a horizontal position provided by an embodiment of the present application. Figure 2 .

[0032] Figure 13 The Figure 3 enlarged schematic diagram of the region D.

[0033] Explanation of reference signs:

[0034] 10, electronic atomization device; 100, atomizer; 101, first air inlet; 102, air outlet; 110, shell assembly; 110a, oil storage cavity; 111, shell; 1111, connecting column; 112, base; 1121, bottom cover; 1122, second sealing element; 120, atomization assembly; 120a, atomization cavity; 120b, oil inlet hole; 121, second atomization tube; 122, atomization core; 130, pressure relief assembly; 130a, first pressure relief hole; 130b, second pressure relief hole; 130c, mounting groove; 131, first atomization tube; 132, first oil guide cotton; 133, first sealing element; 134, pressure relief tube; 135, pressure relief seat; 1351, pressure relief cavity; 1352, third pressure relief hole; 1353, protrusion; 200, power supply unit; 201, second air inlet; 210, shell; 211, partition plate; 220, electronic assembly; 230, oil absorption cotton; 231, air hole; 240, air adjusting element; 30, tobacco tar. DETAILED DESCRIPTION

[0035] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in many different ways from what is described herein, and by one of ordinary skill in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0036] In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or piece referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, if the terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0038] In the present application, unless otherwise specifically defined and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two pieces or the interaction relationship between two pieces, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature on or above or below a second feature, it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature can be above or above or above the second feature, which can mean that the first feature is directly above or obliquely above the second feature, or only means that the first feature is horizontally higher than the second feature. The first feature can be below or below or below the second feature, which can mean that the first feature is directly below or obliquely below the second feature, or only means that the first feature is horizontally lower than the second feature.

[0040] It should be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0041] An embodiment of the present application provides an electronic atomization device for heating atomization medium stored in the internal part of the electronic atomization device to form aerosol for a user to inhale.

[0042] The structure of the electronic atomization device in the present application will be described below by taking an electronic cigarette as an example and taking oil as an example. The present embodiment is only used as an example for illustration and does not limit the technical scope of the present application. It can be understood that in other embodiments, the electronic atomization device of the present application is not limited to an electronic cigarette, but can also be any electronic atomization device that can atomize atomization medium into aerosol, which is not limited herein.

[0043] Referring to FIGS. 1-4, FIG. 1 shows a schematic view of the appearance of an electronic atomization device 10 in an embodiment of the present application, FIG. 2 shows a top view of the electronic atomization device 10, FIG. 3 shows a cross-sectional view of the internal structure of the electronic atomization device 10, Figure 4An exploded schematic view of the electronic atomization device 10 is shown. The electronic atomization device 10 provided by an embodiment of the present application includes an atomizer 100 and a power supply unit 200, the power supply unit 200 and the atomizer 100 are connected to each other, the atomizer 100 is provided with a first air inlet 101 and an air outlet 102 which are in communication with each other, and the power supply unit 200 is provided with a second air inlet 201 which is in communication with the first air inlet 101. The power supply unit 200 is configured to supply power to the atomizer 100, and the atomizer 100 is configured to heat the tobacco juice stored therein under the action of the power supplied by the power supply unit 200, so that the tobacco juice can be atomized to generate aerosol; when a user inhales, external air enters the power supply unit 200 from the second air inlet 201, then enters the atomizer 100 through the first air inlet 101, and is inhaled by the user after being mixed with the aerosol from the air outlet 102.

[0044] In one embodiment, as shown in Figure 3 and Figure 4 , the atomizer 100 includes a housing assembly 110 and an atomization assembly 120, the housing assembly 110 has a storage cavity 110a for storing tobacco juice therein, the first air inlet 101 and the air outlet 102 are provided at opposite ends of the housing assembly 110, and the atomization assembly 120 is arranged in the housing assembly 110. In combination with Figure 5 , the atomization assembly 120 includes a second atomization tube 121 and an atomization core 122 arranged in the second atomization tube 121, the atomization core 122 is formed with an atomization cavity 120a, the atomization cavity 120a is in communication with the first air inlet 101 and the air outlet 102 through the second atomization tube 121, the second atomization tube 121 is provided with an oil inlet hole 120b at a position corresponding to the atomization core 122, and the oil inlet hole 120b is in communication with the storage cavity 110a and the atomization core 122; when the electronic atomization device 10 is in operation, the tobacco juice in the storage cavity 110a can enter the atomization core 122 through the oil inlet hole 120b, so as to be heated by the atomization core 122 to form an aerosol, and then flow out of the air outlet 102 through the second atomization tube 121 for a user to inhale.

[0045] However, for the above-mentioned embodiments, as described in the background, when the user opens the oil injection plug to inject oil into the storage cavity 110a or the temperature and air pressure outside the device change, the air pressure in the storage cavity 110a is prone to change, thereby causing the air pressure between the storage cavity 110a and the atomization cavity 120a to be unbalanced. In the process of using the electronic atomization device 10, the tobacco juice in the storage cavity 110a will continuously transfer to the atomization core 122 under the action of the continuous pressure difference, and when the transferred tobacco juice exceeds the maximum oil locking capacity of the atomization core 122, the excess tobacco juice will leak from the atomization cavity 120a to the outside of the atomizer 100, thereby affecting the user's experience.

[0046] Therefore, as an improvement to the above-mentioned embodiments, as shown in Figure 3 andFigure 4 As shown, the atomizer 100 further comprises a pressure relief assembly 130, which is arranged in the oil storage cavity 110a and sleeved on the atomization assembly 120, and has a first end close to the top of the oil storage cavity 110a and a second end close to the bottom of the oil storage cavity 110a. Figure 6 As shown, the first end of the pressure relief assembly 130 is provided with a first pressure relief hole 130a communicating the oil storage cavity 110a and the oil inlet hole 120b, and the second end is provided with a second pressure relief hole 130b communicating the oil storage cavity 110a and the oil inlet hole 120b.

[0047] In this way, by arranging the pressure relief assembly 130, when the pressure difference between the oil storage cavity 110a and the atomization cavity 120a is unbalanced, the airflow can flow between the oil storage cavity 110a and the atomization cavity 120a through the first pressure relief hole 130a or the second pressure relief hole 130b, so as to balance the pressure difference between the oil storage cavity 110a and the atomization cavity 120a, and solve the problem of oil leakage due to the imbalance of the internal and external pressures of the oil storage cavity 110a.

[0048] Please continue to refer to Figure 3 and Figure 4 In a specific embodiment, the shell assembly 110 comprises a shell 111 and a base 112, one end of the shell 111 is open, the base 112 closes the opening, the end of the shell 111 away from the base 112 has a connecting column 1111 extending towards the inside of the shell 111, the first air inlet 101 penetrates the base 112, and the air outlet 102 penetrates the connecting column 1111; the base 112 comprises a bottom cover 1121 and a second sealing member 1122 arranged on the bottom cover 1121, one end of the pressure relief assembly 130 is connected to the connecting column 1111, the other end of the pressure relief assembly 130 and the end of the atomization assembly 120 away from the air outlet 102 are connected to the second sealing member 1122, so that the inner wall of the shell 111, the side of the second sealing member 1122 away from the bottom cover 1121 and the outer wall of the pressure relief assembly 130 jointly form the oil storage cavity 110a, and the second sealing member 1122 can seal the tobacco tar in the oil storage cavity 110a, so as to avoid the tobacco tar leaking from the bottom of the shell 111.

[0049] As shown in the structure of the pressure relief assembly 130, Figure 6 and Figure 7As shown, the pressure relief assembly 130 includes a first atomization tube 131 coaxially sleeved on the atomization assembly 120 and a first air-permeable oil guide cotton 132, an inner wall of the first atomization tube 131 is formed with a mounting groove 130c with the outer wall of the atomization assembly 120, the first air-permeable oil guide cotton 132 is filled in the mounting groove 130c, at least part of the first pressure relief hole 130a is opened in the first air-permeable oil guide cotton 132, and the second pressure relief hole 130b is opened on the tube wall of the first atomization tube 131 and communicates with the mounting groove 130c, the first air-permeable oil guide cotton 132 covers the outside opening of the oil inlet hole 120b and the inside opening of the second pressure relief hole 130b.

[0050] It should be noted here that the inside and outside mentioned above are relative to the inside and outside of the first atomization tube 131, the inside is defined as inside of the first atomization tube 131, and the outside is defined as outside of the first atomization tube 131. As shown in the figure, Figure 8 As shown, when the electronic atomization device 10 is right side up (i.e. the air outlet 102 is upward), the tobacco oil 30 can enter the first air-permeable oil guide cotton 132 from the second pressure relief hole 130b, the first air-permeable oil guide cotton 132 can lock and guide oil in addition to being air-permeable, so it can guide the tobacco oil 30 upward to a position close to the oil inlet hole 120b, so that the tobacco oil 30 can enter the atomization assembly 120 through the oil inlet hole 120b; at the same time, when there is an imbalance between the internal and external pressure difference between the atomization cavity 120a and the oil storage cavity 110a, the air in the atomization cavity 120a and the oil storage cavity 110a can flow through the first pressure relief hole 130a to communicate with each other, so that the internal and external pressure difference between the atomization cavity 120a and the oil storage cavity 110a reaches a balanced state. And as shown in the figure, Figure 9 As shown, when the electronic atomization device 10 is upside down (i.e. the air outlet 102 is downward) and when there is an imbalance between the internal and external pressure difference between the atomization cavity 120a and the oil storage cavity 110a, the air in the atomization cavity 120a and the oil storage cavity 110a can flow through the second pressure relief hole 130b to communicate with each other, so that the internal and external pressure difference between the atomization cavity 120a and the oil storage cavity 110a also reaches a balanced state.

[0051] For example, when the air pressure in the oil storage cavity 110a is greater than the air pressure in the atomization cavity 120a, the air can enter the first air-permeable oil guide cotton 132 from the first pressure relief hole 130a or the second pressure relief hole 130b, then flow from the micropores of the first air-permeable oil guide cotton 132 to the oil inlet hole 120b, and then enter the atomization cavity 120a from the oil inlet hole 120b; conversely, when the air pressure in the atomization cavity 120a is greater than the air pressure in the oil storage cavity 110a, the air can enter the first air-permeable oil guide cotton 132 from the atomization cavity 120a through the oil inlet hole 120b, then flow from the micropores of the first air-permeable oil guide cotton 132 to the first pressure relief hole 130a or the second pressure relief hole 130b, and then enter the oil storage cavity 110a from the first pressure relief hole 130a or the second pressure relief hole 130b, in order to achieve the purpose of air pressure balance between the oil storage cavity 110a and the atomization cavity 120a.

[0052] Further, as shown in Figure 6 and Figure 7 , the pressure relief assembly 130 further comprises a first sealing member 133, one end of which is connected to the housing assembly 110 along the axial direction of the first sealing member 133, and the other end of which is connected to one end of the first atomization tube 131 close to the air outlet 102, a part of the first pressure relief hole 130a penetrates through the first sealing member 133, and the other part is formed in the first oil guide cotton 132. Specifically, one end of the first sealing member 133 is fitted into the connecting column 1111 of the housing 111 with interference, and the other end is inserted into the first atomization tube 131 and fitted into the atomization assembly 120 with interference, so that the aerosol in the atomization cavity 120a can be prevented from leaking out between the atomization assembly 120 and the connecting column 1111, thereby ensuring that all the aerosol after atomization can be inhaled by the user from the air outlet 102, and thus the good suction taste can be ensured.

[0053] In the embodiments shown in Figure 6 and Figure 7 , the first pressure relief hole 130a has two, and the two first pressure relief holes 130a are divided into two sides of the central axis along the radial direction defined by the central axis of the pressure relief assembly 130 (i.e. the central axis of the atomization assembly 120). Of course, it can be understood that the number of first pressure relief holes 130a is not limited to two, and can also be multiple, and all the first pressure relief holes 130a are arranged in pairs, and each pair of first pressure relief holes 130a is divided into two sides of the central axis along the radial direction defined by the central axis. By providing two or more first pressure relief holes 130a, more flow paths for air can be provided, so that the pressure balance in the atomization cavity 120a and the oil storage cavity 110a can be achieved quickly.

[0054] Preferably, as shown in Figure 7 , a pressure relief tube 134 is inserted into the first pressure relief hole 130a, because the material of the first oil guide cotton 132 is relatively soft, and in order to avoid the hole walls of the first pressure relief hole 130a from adhering to each other, the pressure relief tube 134 can be provided to keep the first pressure relief hole 130a open, thereby preventing the first pressure relief hole 130a from being blocked.

[0055] Further, as shown in Figure 5As shown, the pressure relief assembly 130 further comprises a gas leakage seat 135, which is sleeved on one end of the first atomization tube 131 close to the first air inlet 101 and covers the second pressure relief hole 130b. In the specific structure of the gas leakage seat 135, the outer diameter of the gas leakage seat 135 along the axial direction thereof is in a structure of large at one end and small at the other end, that is, in the direction from the first air inlet 101 to the air outlet 102, the outer diameter of the gas leakage seat 135 gradually decreases, so that the inner wall of the gas leakage seat 135 and the outer wall of the first atomization tube 131 are configured to form a gas leakage cavity 1351 communicating with the second pressure relief hole 130b, and the side surface of the gas leakage seat 135 is provided with a third pressure relief hole 1352, and the oil storage cavity 110a communicates with the gas leakage cavity 1351 through the third pressure relief hole 1352.

[0056] Therefore, when the electronic atomization device 10 is inverted and the air pressure in the atomization cavity 120a is higher than that in the oil storage cavity 110a, air can flow from the atomization cavity 120a to the oil storage cavity 110a through the second pressure relief hole 130b, the gas leakage cavity 1351 and the third pressure relief hole 1352 in sequence to achieve air pressure balance; or when the air pressure in the oil storage cavity 110a is higher than that in the atomization cavity 120a, air can flow from the oil storage cavity 110a to the atomization cavity 120a through the third pressure relief hole 1352, the gas leakage cavity 1351 and the second pressure relief hole 130b in sequence. Moreover, due to the design of the gas leakage seat 135 in the above structure, when the electronic atomization device 10 is placed horizontally (i.e., the opening of the air outlet 102 faces horizontally) and the air pressure in the oil storage cavity 110a is higher than that in the atomization cavity 120a, the opening of the third pressure relief hole 1352 can be higher than the liquid level of the tobacco oil 30, and the air in the atomization cavity 120a and the oil storage cavity 110a can still flow to each other, so that the air pressure balance between the atomization cavity 120a and the oil storage cavity 110a can also be achieved.

[0057] Meanwhile, by providing the gas leakage seat 135 to form the gas leakage cavity 1351, when the electronic atomization device 10 is placed vertically, the tobacco oil 30 in the oil storage cavity 110a can continuously flow into the gas leakage cavity 1351 from the third pressure relief hole 1352, and even when the tobacco oil 30 in the oil storage cavity 110a is used up, there is still a small amount of tobacco oil 30 in the gas leakage cavity 1351. Therefore, when the user continues to smoke, the small amount of tobacco oil 30 in the gas leakage cavity 1351 can still be supplied to the atomization assembly 120 for a period of time to be heated and atomized, avoiding the phenomenon that the atomization assembly 120 is dry-burned when the user continues to smoke after the tobacco oil 30 in the oil storage cavity 110a is used up.

[0058] Please refer to Figure 10 As a further improvement of the structure of the gas leakage seat 135, the gas leakage seat 135 is further provided with a plurality of protrusions 1353 arranged at intervals around the central axis of the gas leakage seat 135 on the outer circumferential surface of the larger-diameter end thereof, and each protrusion 1353 is provided with a third pressure relief hole 1352. Figure 11and Figure 12 As shown, by setting the protrusion 1353, it can be ensured that when the electronic atomization device 10 is placed along the horizontal direction and there is still a large amount of e-liquid 30 in the oil storage cavity 110a, the opening height of the third pressure relief hole 1352 is still higher than the liquid level of the e-liquid 30, so that the e-liquid 30 does not overflow the opening of the third pressure relief hole 1352, thereby still ensuring that the atomization cavity 120a and the oil storage cavity 110a can achieve pressure balance when the electronic atomization device 10 is placed along the horizontal direction. Of course, the number of the third pressure relief hole 1352 and the protrusion 1353 is not limited, and can be one or any number, which is not limited here.

[0059] Please continue to refer to Figure 5 In an embodiment, the first oil guide cotton 132 of the pressure relief assembly 130 is attached to the wall of the second atomization tube 121 and covers the outer opening of the oil inlet hole 120b, and the atomization core 122 is arranged in the atomization cavity 120a. In an embodiment, the atomization core 122 includes a gas-permeable second oil guide cotton and a heating element connected to the second oil guide cotton, and the second oil guide cotton is in a cylindrical shape, with its outer circumferential surface attached to the cavity wall of the atomization cavity 120a and covering the inner opening of the oil inlet hole 120b. The second oil guide cotton and the first oil guide cotton 132 are made of the same material and have the functions of gas permeability, oil locking, and oil guiding. Therefore, gas can pass through the first oil guide cotton 132 and the second oil guide cotton, so that the first pressure relief hole 130a and the second pressure relief hole 130b are connected to the oil inlet hole 120b through the first oil guide cotton 132, and the oil inlet hole 120b is connected to the gas outlet 102 through the second oil guide cotton.

[0060] Again, it should be noted that the inner side and the outer side here are relative to the second atomization tube 121, and the inside of the second atomization tube 121 is defined as the inner side, and the outside of the second atomization tube 121 is defined as the outer side.

[0061] Please continue to refer to Figure 3 In the embodiment shown in Figure 3 , the power supply unit 200 includes a housing 210 and an electronic assembly 220, the atomization cavity 120a is connected to the housing 210, and the electronic assembly 220 is arranged in the housing 210 and electrically connected to the heating element of the atomization core 122; the electronic assembly 220 includes a battery, a circuit board, and an airflow sensor, etc., and the specific structure thereof can refer to the prior art, which will not be described here.

[0062] In order to prevent the condensate generated in the atomization cavity 120a after the aerosol is cooled from leaking into the power supply unit 200 to damage the electronic components 220, in a preferred embodiment, a partition plate 211 is arranged in the shell 210, the partition plate 211 divides the inner cavity of the shell 210 into a first cavity and a second cavity, the second air inlet 201 is arranged on the bottom wall of the first cavity, the oil absorbing cotton 230 is arranged in the first cavity and is vertically aligned with the first air inlet 101, the electronic components 220 are arranged in the second cavity and are vertically misaligned with the atomizer 100, and the oil absorbing cotton 230 is provided with a ventilation hole 231 communicating the first air inlet 101 and the second air inlet 201. In this way, the condensate generated in the atomization cavity 120a falls into the oil absorbing cotton 230 after falling from the first air inlet 101, so that the condensate can be prevented from leaking out of the second air inlet 201 or leaking into the electronic components 220.

[0063] In addition, as shown in Figure 13 , the second air inlet 201 is provided with at least two, and the bottom of the shell 210 is movably provided with an air adjusting member 240, the air adjusting member 240 can move relative to the shell 210 to block at least one second air inlet 201 or be misaligned with all the second air inlets 201, so that different numbers of second air inlets 201 can be opened, thereby adjusting the size of the air intake, and then the user can have different suction feelings when sucking; and the air adjusting member 240 can also block all the second air inlets 201, so that all the second air inlets 201 can be blocked, so that the electronic components 220 cannot be started to supply power to the atomization core 122 when sucking, thereby preventing children from mistakenly starting the electronic atomization assembly 120 when playing.

[0064] In summary, the electronic atomization device 10 provided by the present application can make the air between the oil storage cavity 110a and the atomization cavity 120a flow to each other no matter how it is placed, so that the pressure difference between the oil storage cavity 110a and the atomization cavity 120a can always be balanced, thus solving the problem of oil leakage caused by unbalanced internal and external pressure of the oil storage cavity in the existing pre-oiled electronic atomization device or open type non-oiled electronic atomization device under the premise of simple structure and low production cost.

[0065] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0066] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An atomizer characterized by, The application relates to a shell assembly, an atomizing assembly and a pressure relief assembly. The shell assembly has an oil storage cavity, and a first air inlet and an air outlet are arranged at opposite ends of the shell assembly. The atomizing assembly is arranged in the shell assembly and has an atomizing cavity communicating with the first air inlet and the air outlet. The pressure relief assembly is arranged in the oil storage cavity and covers the atomizing assembly.

2. The atomizer of claim 1, wherein, The pressure relief assembly has a first end close to the top of the oil storage cavity and a second end close to the bottom of the oil storage cavity.

3. The atomizer of claim 2, wherein, The first end is provided with a first pressure relief hole communicating with the oil storage cavity and the oil inlet hole.

4. The atomizer of claim 2, wherein, The second end is provided with a second pressure relief hole communicating with the oil storage cavity and the oil inlet hole. The pressure relief assembly comprises a first atomizing pipe covering the atomizing assembly and a first air-permeable oil guide cotton.

5. The atomizer of claim 4, wherein, An installation groove is formed between the inner wall of the first atomizing pipe and the outer wall of the atomizing assembly.

6. The atomizer of claim 1, wherein, The first air-permeable oil guide cotton is filled in the installation groove.

7. The atomizer of claim 1, wherein, At least part of the first pressure relief hole is arranged in the first air-permeable oil guide cotton.

8. The atomizer of claim 1, wherein, The second pressure relief hole is arranged on the pipe wall of the first atomizing pipe and communicates with the installation groove.

9. The atomizer of claim 8, wherein, The first air-permeable oil guide cotton covers the outside opening of the oil inlet hole and the inside opening of the second pressure relief hole. The pressure relief assembly further comprises a first sealing member connected to the shell assembly and to the end of the first atomizing pipe close to the air outlet. Part of the first pressure relief hole penetrates the first sealing member, and the other part is arranged in the first air-permeable oil guide cotton. The pressure relief assembly further comprises an air discharge seat covering the second pressure relief hole and covering the end of the first atomizing pipe close to the first air inlet. From the direction of the first air inlet pointing to the air outlet, the outer diameter of the air discharge seat gradually decreases. The inner wall of the air discharge seat and the outer wall of the first atomizing pipe form an air discharge cavity communicating with the second pressure relief hole. The air discharge seat is provided with a plurality of protrusions arranged at intervals around the central axis of the air discharge seat. Each of the protrusions is provided with the third pressure relief hole. The first pressure relief hole has at least two, and all the first pressure relief holes are arranged on both sides of the central axis along the radial direction defined by the central axis of the pressure relief assembly. The pressure relief assembly further comprises a pressure relief pipe inserted into the first pressure relief hole. The atomizing assembly comprises a second atomizing pipe and an atomizing core. The atomizing cavity penetrates the second atomizing pipe along the opposite ends of the atomizing cavity in the axial direction. The oil inlet hole is arranged on the pipe wall of the second atomizing pipe. The pressure relief assembly is attached to the pipe wall of the second atomizing pipe and covers the outside opening of the oil inlet hole. The atomizing core comprises a second air-permeable oil guide cotton and a heating element connected to the second air-permeable oil guide cotton. The second air-permeable oil guide cotton is attached to the cavity wall of the atomizing cavity and covers the inside opening of the oil inlet hole.

10. An electronic atomizing device, characterized by, The atomizer as claimed in any one of claims 1-9, wherein the atomizer is connected to a power supply unit, and the power supply unit is provided with a second air inlet communicating with the first air inlet.

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