Pressure-balanced oil cup device and electronic atomizer

Abstract

The utility model discloses a pressure-balanced oil cup device and an electronic atomizer. A pressure-balanced oil cup device comprises an oil cup body, a heating body arranged in the oil cup body and a pressure relief assembly arranged on the oil cup body. The oil cup body is provided with an oil storage bin used for containing atomized matrixes. The pressure relief assembly is provided with a pressure relief cavity; one end of the pressure relief cavity is communicated with the oil storage bin, and the other end is communicated with external atmospheric pressure. The pressure relief assembly is arranged in the oil storage bin, and the oil storage bin is communicated with the outside through the pressure relief assembly, so that when the air pressure difference exists between the oil storage bin and the outside atmospheric pressure, a part of atomized matrix or air in the oil storage bin flows into the pressure relief cavity of the pressure relief assembly, and then the air pressure of the oil storage bin is balanced with the outside atmospheric pressure; leakage of an atomized substrate from a heating element is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of consumer electronics, and more specifically to a pressure-balanced oil cup device and an electronic atomizer. Background Art

[0002] Existing electronic atomizers are generally equipped with an oil storage tank for holding the atomized matrix. The atomized matrix in the oil storage tank flows to the vicinity of the heating wire through the flow characteristics, and then is heated and powered on to generate heat to atomize the atomized matrix into aerosol. Therefore, due to the fluidity of the atomized matrix, the leakage of the atomized matrix has become a headache for the industry.

[0003] After the production of electronic vaporizers is completed, they need to go through processes such as transportation and storage. Oil leakage often occurs during these processes. For example, during transportation, there is a pressure difference between the oil storage tank and the transportation environment; when transporting from low altitude areas to high altitude areas for storage. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a pressure-balanced oil cup device and an electronic atomizer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pressure-balanced oil cup device comprises an oil cup body, a heating element arranged in the oil cup body, and a pressure relief assembly arranged in the oil cup body; the oil cup body is provided with an oil storage bin for containing an atomized matrix; the pressure relief assembly is provided with a pressure relief chamber; one end of the pressure relief chamber is connected to the oil storage bin, and the other end is connected to the external atmospheric pressure.

[0007] Its further technical solution is: the oil cup body includes an oil cup shell, and a seal is arranged at one end of the oil cup shell; the oil storage tank is formed between the oil cup shell and the seal; one end of the pressure relief chamber is connected to the oil storage tank through the seal, and the other end is connected to the external atmospheric pressure through the oil cup shell.

[0008] A further technical solution is as follows: the sealing member is provided with at least two connecting channels; one end of the connecting channel is connected to the oil storage tank, and the other end is connected to the pressure relief chamber.

[0009] Its further technical solution is: the sealing member is provided with an installation groove for installing a pressure relief component on one side of the oil storage tank; the inner wall and bottom of the installation groove are provided with grooves so that the pressure relief component can be installed in the installation groove to form the connection channel.

[0010] Its further technical solution is: the connecting channel includes a first channel arranged on the side wall of the installation groove, and a second channel arranged on the bottom of the installation groove; the first channel and the second channel are connected to each other; the first channel is connected to the oil storage tank, and the second channel is connected to the pressure relief component.

[0011] A further technical solution is as follows: a first pressure relief hole is provided at one end of the pressure relief component that is in communication with the connecting channel; and the first pressure relief hole is in communication with the pressure relief chamber.

[0012] A further technical solution is as follows: a sealing block is arranged at one end of the pressure relief component close to the connecting channel; and the first pressure relief hole is arranged in the sealing block.

[0013] A further technical solution is as follows: the pressure relief component is a cylindrical protrusion extending from one side of the oil cup shell toward the oil storage tank; one end of the cylindrical protrusion stops at the mounting groove, so that the cylindrical protrusion and the sealing member form a pressure relief component.

[0014] A further technical solution is as follows: the oil cup shell is provided with a second pressure relief hole connected to the pressure relief chamber; the pressure relief chamber is connected to the external atmospheric pressure through the second pressure relief hole.

[0015] Its further technical solution is: an oil filling plug is arranged on the outside of the oil cup shell; the oil cup shell is provided with a fixing hole connected to the pressure relief chamber; the fixed end of the oil filling plug is arranged in the fixing hole; the second pressure relief hole is arranged at the fixed end of the oil filling plug.

[0016] A further technical solution is as follows: a balancing membrane is arranged in the pressure relief chamber.

[0017] Its further technical solution is: the pressure relief component is located at one end of the oil storage tank and is suspended in the oil storage tank; the pressure relief component is located at one end of the oil storage tank and is provided with a first pressure relief hole; the pressure relief component is connected to the oil cup body and is provided with a second pressure relief hole.

[0018] Its further technical solution is: the pressure relief assembly includes a mounting cylinder connected to the oil cup body, and a first sealing member and a second sealing member respectively arranged at both ends of the mounting cylinder; the interior of the mounting cylinder is a hollow structure; one end of the first sealing member arranged on the mounting cylinder is located in the oil storage tank, and the first sealing member is provided with a first pressure relief hole; one end of the second sealing member arranged on the mounting cylinder is connected to the oil cup body, and the second sealing member is provided with a second pressure relief hole.

[0019] An electronic atomizer comprises a housing, a battery, a circuit board, and the above-mentioned pressure-balanced oil cup device; the pressure-balanced oil cup device is arranged on the upper part of the housing.

[0020] The beneficial effect of the utility model compared with the prior art is that the utility model is provided with a pressure relief component in the oil storage bin, and the oil storage bin is connected with the outside world through the pressure relief component, so that when there is a pressure difference between the oil storage bin and the outside atmospheric pressure, a part of the atomized matrix or air in the oil storage bin flows into the pressure relief chamber of the pressure relief component, thereby balancing the air pressure in the oil storage bin with the outside atmospheric pressure, thereby preventing the atomized matrix from leaking from the heating element.

[0021] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a cross-sectional view of an embodiment of a pressure-balanced oil cup device of the utility model;

[0023] Figure 2 A three-dimensional diagram of a seal of an embodiment of a pressure-balanced oil cup device of the utility model;

[0024] Figure 3 It is a cross-sectional view of an embodiment of a pressure-balanced oil cup device of the utility model;

[0025] Figure 4 It is a cross-sectional view of an embodiment of a pressure-balanced oil cup device of the utility model;

[0026] Figure 5 It is a cross-sectional view of an embodiment of a pressure-balanced oil cup device of the utility model;

[0027] Figure 6 It is a cross-sectional view of an embodiment of a pressure-balanced oil cup device of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0035] Figures 1 to 6 It is the accompanying drawing of the utility model.

[0036] This embodiment provides a pressure-balanced oil cup device 100, see Figure 1 , including an oil cup body 10, a heating element 20 disposed in the oil cup body 10, and a pressure relief assembly 30 disposed in the oil cup body 10. The oil cup body 10 is provided with an oil storage bin 11 for containing an atomized matrix. The pressure relief assembly 30 is provided with a pressure relief chamber 301, and one end of the pressure relief chamber 301 is connected to the oil storage bin 11, and the other end is connected to the external atmospheric pressure, for balancing the pressure difference between the oil storage bin 11 and the external atmospheric pressure. The heating element 20 is disposed in the oil storage bin 11, and the heating element 20 is provided with an atomization channel, and the heating wire is disposed in the atomization channel, so that the atomized matrix of the oil storage bin 11 can flow from the oil inlet end of the heating element 20 to the heating wire of the atomization channel, so that the atomized matrix is ​​heated and atomized. The pressure relief chamber 301 of the pressure relief component 30 is connected to the oil storage tank 11. When the pressure of the oil storage tank 11 is too high, under the action of the pressure in the tank, a part of the atomized matrix of the oil storage tank 11 or air flows to the pressure relief component 30, so that the pressure in the oil storage tank 11 is balanced with the external atmospheric pressure, avoiding the atomized matrix from flowing from the oil inlet end of the heating element to the atomization channel, resulting in leakage of the atomized matrix.

[0037] The oil storage bin 11 is used to hold liquid atomized matrix, or to adsorb the atomized matrix through oil storage cotton. The heating element 20 and the circulation channel of the oil storage bin 11 are generally provided with oil guide cotton, so the atomized matrix flows to the atomizing channel to form a certain resistance. The pressure relief component 30 is directly connected to the oil storage bin 11, so the atomized matrix in the oil storage bin 11 can flow directly into the pressure relief component 30, and the resistance is relatively small. Therefore, when the pressure of the oil storage bin 11 is too large, the atomized matrix will flow to the pressure relief component 30 first, balance the pressure difference between the oil storage bin 11 and the external atmospheric pressure, thereby preventing the atomized matrix from leaking from the atomizing channel. The resistance of the atomized matrix flowing to the pressure relief component 30 is greater than the resistance flowing to the pressure relief component 30, so after the atomized matrix is ​​subjected to pressure, it will flow to the pressure relief chamber 301 of the pressure relief component 30 first. The pressure relief component 30 is provided with a pressure relief chamber 301 for retaining the atomized matrix, so it can effectively prevent the atomized matrix from flowing outside the device.

[0038] See also Figure 1 The oil cup body 10 includes an oil cup shell 12 and a seal 13 disposed at one end of the oil cup shell 12. An oil storage bin 11 is formed between the oil cup shell 12 and the seal 13. One end of the pressure relief assembly 30 is connected to the oil storage bin 11 through the seal 13, that is, one end of the pressure relief assembly 30 is installed to the seal 13, and the other end is connected to the external atmospheric pressure through the oil cup shell 12. The oil cup shell 12 is a barrel-shaped structure, and the seal 13 is disposed at the open end of the oil cup shell 12, and the enclosed inner cavity is the oil storage bin 11. Of course, the shape of the oil cup shell 12 is not limited to the barrel-shaped structure, and the cavity formed by the oil cup shell 12 and the seal 13 of other shapes can also be used as the oil storage bin 11. The function of the seal 13 is to assemble with the oil cup shell 12 to form the oil storage bin 11, and to serve as a sealing component and a connection with other components. One end of the pressure relief chamber 301 of the pressure relief component 30 is connected to the oil storage tank 11 through the seal 13. Under normal circumstances, the atomized matrix can be easily squeezed into the pressure relief chamber 301 of the pressure relief component 30 by the pressure in the oil storage tank 11. The space left by the atomized matrix dilutes the air pressure in the oil storage tank 11, thereby playing a role in pressure relief.

[0039] A suction nozzle 14 is disposed at one end of the oil cup shell 12. The suction nozzle 14 is connected to the heating element 20, so that the heating element 20 heats the atomized substrate into atomized liquid and then discharges the atomized liquid from the suction nozzle 14.

[0040] The sealing member 13 is made of silicone, rubber, gel, etc., which is beneficial to the sealing effect of the oil storage tank 11.

[0041] See also Figure 1Since one end of the pressure relief component 30 is connected to the seal 13, the seal 13 is provided with at least two connection channels 131 communicating with the pressure relief component 30. One end of the connection channel 131 is communicated with the oil storage tank 11, and the other end is communicated with the pressure relief chamber 301 of the pressure relief component 30. The connection channel 131 is provided on the seal 13 to facilitate the formation of a seal at the lower end of the pressure relief component 30. The connecting channel 131 is used to connect the oil storage tank 11 and the pressure relief component 30. When the pressure of the oil storage tank 11 is greater than the external air pressure, the atomized matrix or air in the oil storage tank 11 flows from the connecting channel 131 to the pressure relief chamber 301 of the pressure relief component 30, so that the pressure of the pressure relief chamber 301 is balanced with the pressure of the external atmospheric pressure; when the pressure of the oil storage tank 11 is less than the external air pressure, since the pressure relief chamber 301 of the pressure relief component 30 is connected with the external atmospheric pressure, the external air flows from the pressure relief chamber 301 of the pressure relief component 30 into the oil storage tank 11 through the connecting channel 131, or the atomized matrix in the pressure relief chamber 301 flows to the oil storage tank 11 under the action of atmospheric pressure, so as to achieve the balance between the pressure in the oil storage tank 11 and the external atmospheric pressure. The atomized matrix in the oil storage tank 11 flows to the pressure relief chamber 301 of the pressure relief component 30 under the action of pressure, and the pressure relief chamber 301 can accommodate the atomized matrix squeezed out by high pressure.

[0042] See also Figure 1 Since the pressure relief assembly 30 is located inside the oil storage tank 11, the sealing effect of the pressure relief assembly 30 needs to be considered, so the seal 13 is located on one side of the oil storage tank 11 and is provided with a mounting groove 132 for installing the pressure relief assembly 30. After the seal 30 is installed to the oil cup shell 12, one end of the pressure relief assembly 30 is connected to the mounting groove 132, and is tightly connected to achieve the effect of sealing connection. In this embodiment, the mounting groove 132 is a blind hole, and the lower end of the pressure relief assembly 30 stops at the bottom of the mounting groove 132, which can play a sealing role; and because the mounting groove 132 is a blind hole, the atomized matrix cannot leak to the outside, and at the same time, the lower end of the pressure relief assembly 30 stops at the bottom of the mounting groove 132, which can limit the installation of the seal 13. Moreover, the connecting channel 131 is arranged on the inner wall and bottom of the mounting groove 132, so that after the pressure relief assembly 30 is installed to the mounting groove 132, the connecting channel 131 connects the oil storage tank 11 and the pressure relief chamber 301 of the pressure relief assembly 30. Specifically, the installation groove 132 is a recessed structure, and grooves are provided on the inner wall and the bottom of the installation groove 132 . After the pressure relief assembly 30 is installed in the installation groove 132 , a connecting channel 131 is formed between the groove and the outer wall of the pressure relief assembly 30 .

[0043] For details, please refer to Figure 1 , 2, the connection channel 131 includes a first channel 1311 provided on the side wall of the installation groove 132 and a second channel 1312 provided on the bottom of the installation groove 132. The first channel 1311 and the second channel 1312 communicate with each other. One end of the first channel 1311 communicates with the oil storage chamber 11, and the other end communicates with the second channel 1312; the end of the second channel 1312 away from the first channel 1311 communicates with the pressure relief chamber 301 of the pressure relief component 30. Since the installation groove 132 is a concave structure, after the pressure relief component 30 is installed in the installation groove 132, the outer walls of the first channel 1311, the second channel 1312 and the pressure relief component 30 form the connection channel 131.

[0044] Since the first channel 1311 is provided on the side wall of the installation groove 132 and the second channel 1312 is provided on the bottom of the installation groove 132, when the connection channel 131 is formed, the connection channel 131 has a bend, which will increase the flow resistance of the atomization matrix in the connection channel 131. Therefore, the number of connection channels 131 is two or more. The number of connection channels 131 being multiple can not only reduce the flow resistance of the atomization matrix, but also increase the probability of air pressure relief between the oil storage chamber 11 and the pressure relief component 30 when the device is in different postures. Specifically, if the device is placed laterally, one of the connection channels 131 can communicate a part of the air in the oil storage chamber 11 with the pressure relief chamber 301, and the air part can be pressure relieved. Generally, after the atomization matrix is injected into the oil storage chamber 11, it is basically impossible to fill it up, and a part of the space in the oil storage chamber 11 is left to accommodate air. Therefore, if a pressure difference is formed between the pressure in the oil storage chamber 11 and the external atmospheric pressure, the air in the oil storage chamber 11 can be directly pressure relieved, and the pressure difference between the oil storage chamber 11 and the external atmospheric pressure can be more effectively balanced. Therefore, the number of connection channels 131 being multiple enables the device to improve the communication between the air part in the oil storage chamber 11 and the pressure relief component 30 through the connection channels 131 regardless of its posture, so that the air in the oil storage chamber 11 can be quickly pressure relieved to ensure the balance between the pressure in the oil storage chamber 11 and the external atmospheric pressure.

[0045] Preferably, the cross-sectional area of the first channel 1311 is more than one time that of the second channel 1312. The larger cross-sectional area of the first channel 1311 than that of the second channel 1312 can increase the fluidity of the atomization matrix and avoid the blockage of the connection channel 131 by the precipitate of the atomization matrix.

[0046] Preferably, the average cross-sectional area of the connection channel 131 is 0.3 to 1.5 mm 2 . The cross-sectional area of the connection channel 131 should not be set too large, otherwise the leakage of the atomization matrix will occur; if the cross-sectional area of the connection channel 131 is set too small, the pore will be easily blocked, affecting the flow of the atomization matrix.

[0047] Preferably, the plurality of connecting channels 131 are arranged rotationally symmetrically, and the central axis of the rotational symmetry is the central line of the mounting groove 132. The rotationally symmetrical arrangement of the connecting channels 131 can release pressure quickly and evenly.

[0048] In other embodiments, the connecting channel 131 may be formed by a separate channel opened in the sealing member 13 , that is, the connecting channel 131 does not need to be formed in a matching manner with the pressure relief assembly 30 , as long as the oil storage tank 11 can be connected to the pressure relief chamber 301 .

[0049] Among them, see Figure 1 A first pressure relief hole 31 is provided at one end of the pressure relief assembly 30 communicating with the connecting channel 131 . The first pressure relief hole 31 is a capillary tube. When there is no pressure difference between the oil storage tank 11 and the pressure relief component 30, it is a pressure balance. Due to the resistance of the capillary tube, the atomized matrix cannot flow from the oil storage tank 11 to the pressure relief chamber 301 of the pressure relief component 30 through the first pressure relief hole 31; when a pressure difference is formed between the oil storage tank 11 and the pressure relief component 30, since the pressure relief component 30 is connected to the external atmospheric pressure, the pressure in the oil storage tank 11 is greater than the external atmospheric pressure. The atomized matrix in the oil storage tank 11 is affected by the pressure, and the atomized matrix flows to the pressure relief chamber 301 of the pressure relief component 30 through the connecting channel 131 and the first pressure relief hole 31; or, when the external atmospheric pressure (i.e., the air pressure of the pressure relief chamber 301) is greater than that of the oil storage tank 11, the external air flows to the oil storage tank 11 through the first pressure relief hole 31 and the connecting channel 131, thereby forming a pressure balance between the oil storage tank 11 and the external pressure relief component 30. When the atomized matrix in the oil storage tank 11 is squeezed into the pressure relief chamber 301 of the pressure relief component 30, if the external atmospheric pressure is greater than the pressure of the oil storage tank 11, the atomized matrix in the pressure relief chamber 301 of the pressure relief component 30 returns to the oil storage tank 11 under the action of pressure.

[0050] Preferably, a sealing block 32 is provided at one end of the pressure relief assembly 30 close to the connecting channel 131, and the first pressure relief hole 31 is provided on the sealing block 32. One end of the pressure relief chamber 30 connected to the seal 13 is an open end, so the sealing block 32 is provided at the open end to form a pressure relief chamber 301. When one end of the pressure relief assembly 30 is installed in the mounting groove 132, the sealing block 32 is located in the mounting groove 132, and the connecting channel 131 is connected to the first pressure relief hole 31 of the sealing block 32. The end of the sealing block 32 stops at the bottom of the mounting groove 132, which plays a role in sealing the mounting groove 132. Among them, the cross-sectional area of ​​the connecting channel 131 is larger than the cross-sectional area of ​​the first pressure relief hole 31, which can also be understood as the aperture of the connecting channel 131 is larger than the aperture of the first pressure relief hole 31, and the atomized matrix can flow smoothly in the connecting channel 131. Preferably, the cross-sectional area of ​​the connecting channel 131 is at least 1.5 times the cross-sectional area of ​​the first pressure relief hole 31. At the same time, since the connecting channel 131 is arranged on the inner wall and the bottom of the mounting groove 132, after the pressure relief assembly 30 is installed in the mounting groove 132, the connecting channel 131 is in a bent shape, and the flow resistance of the atomized matrix in the connecting channel 131 is relatively large. In order to reduce the flow resistance of the connecting channel 131 and increase the sensitivity of the pressure relief, the cross-sectional area of ​​the connecting channel 131 is larger than the cross-sectional area of ​​the first pressure relief hole 31.

[0051] Preferably, the aperture of the first pressure relief hole 31 is 0.5 to 1.0 mm. Due to different atomized substrates, the viscosity may be different. If the viscosity of the atomized substrate is large, the aperture of the first pressure relief hole 31 can be set larger. If the viscosity of the atomized substrate is small, the aperture of the first pressure relief hole 31 can be set smaller. The aperture of the first pressure relief hole 31 can be controlled according to the viscosity of the atomized substrate. However, the aperture of the first pressure relief hole 31 should not be too large. When the pressure of the oil storage bin 11 and the pressure relief component 30 is balanced, the atomized substrate cannot flow out of the first pressure relief hole 31. If there is a pressure difference between the oil storage bin 11 and the pressure relief component 30, the atomized substrate in the oil storage bin 11 or the pressure relief component 30 can flow through the first pressure relief hole 31 under the action of the pressure difference.

[0052] In the case of no pressure difference between the oil storage tank 11 and the pressure relief assembly 30, in order for the first pressure relief hole 31 to better stabilize the atomized matrix, preferably, the inner wall of the first pressure relief hole 31 is provided with a barrier layer or an oleophilic layer. The barrier layer can block the atomized matrix. When there is no pressure difference between the oil storage tank 11 and the pressure relief assembly 30, the atomized matrix in the first pressure relief hole 31 cannot flow. When there is a pressure difference, the atomized matrix can flow through the first pressure relief hole 31. The oleophilic layer can absorb the atomized matrix, that is, the oleophilic layer's own characteristics increase the flow friction of the atomized matrix, so that the flow resistance in the first pressure relief hole 31 is increased. In the absence of pressure, the atomized matrix is ​​difficult to flow through the first pressure relief hole 31, and the first pressure relief hole 31 has a small aperture, so the first pressure relief hole 31 serves the purpose of "retaining oil".

[0053] See also Figure 1 The pressure relief assembly 30 is a cylindrical protrusion 121 extending from one side of the oil cup shell 12 toward the oil storage tank 11. The cylindrical protrusion 121, the seal 13, the sealing block 32, etc. form the pressure relief assembly 30. The cylindrical protrusion 121 is a part of the oil cup shell 12 and is located in the oil storage tank 11. After the seal 13 is installed to the oil cup shell 12, the lower end of the cylindrical protrusion 121 is in the installation groove 132 of the seal 13. At the same time, the sealing block 32 is arranged at the lower end of the cylindrical protrusion 121. After the cylindrical protrusion 121 and the seal 13 are installed, the sealing block 32 is located in the installation groove 132. Preferably, the cylindrical protrusion 121 and the oil cup shell 12 are integrally formed.

[0054] The oil cup shell 12 is provided with a second pressure relief hole 122 at the position of the pressure relief component 30. The pressure relief chamber 301 of the pressure relief component 30 is connected to the external atmospheric pressure through the second pressure relief hole 122. Similarly, the second pressure relief hole 122 is also a capillary pore, and when the pressure is balanced, the atomized matrix in the pressure relief chamber 301 of the pressure relief component 30 cannot flow out. The aperture of the second pressure relief hole 122 is similar to the aperture of the first pressure relief hole 31, and has the function of ventilation but not the atomized matrix. A barrier layer or an oleophilic layer may also be provided inside the second pressure relief hole 122 to increase the resistance to the flow of the atomized matrix and prevent the atomized matrix from flowing out of the second pressure relief hole 122.

[0055] An oil filling hole 123 is provided on the outside of the oil cup shell 12. The oil filling hole 123 is used to fill the oil storage tank 11 with oil. The oil filling hole 123 is provided with an oil filling plug 124. One end of the oil filling plug 124 is fixedly connected to the oil cup shell 12, and the other end is used to block the oil filling hole 123. Generally, the oil filling hole 123 is provided on one side of the suction nozzle 14 to facilitate the filling of the oil storage tank 11 with oil.

[0056] Preferably, see Figure 1, the fixed end of the oil filling plug 124 is arranged close to the pressure relief chamber 301 of the pressure relief assembly 30. The second pressure relief hole 122 is arranged at the fixed end of the oil filling plug 124. One end of the oil filling plug 124 is a fixed end, and the other end is a movable end. The fixed end is arranged at the position of the pressure relief chamber 301 of the oil cup shell 12 close to the pressure relief assembly 30. It can be understood that a fixed hole is arranged at the position of the oil cup shell 12 close to the pressure relief assembly 30, and the fixed hole is connected with the pressure relief assembly 30, so after the fixed end of the oil filling plug 124 is arranged at the fixed hole, the second pressure relief hole 122 is connected with the pressure relief assembly 30. The second pressure relief hole 122 is arranged on the oil filling plug 124, which is convenient for processing and installation, and the oil filling plug 124 is generally made of soft material. If the second pressure relief hole 122 is too large or too small, the aperture of the second pressure relief hole 122 can also be corrected. In addition, the oil filling plug 124 is made of soft material and can seal the fixed hole. The oil filling hole 123 is arranged at one side of the fixing hole, so the movable end of the oil filling plug 124 can be freely inserted and pulled out of the oil filling hole 123 .

[0057] In other embodiments, the pressure relief assembly 30 is formed by a cylindrical protrusion 121 extending from one side of the oil cup shell 12 toward the oil storage tank 11. The cylindrical protrusion 121 and the seal 13 form the pressure relief assembly 30. The cylindrical protrusion 121 is a part of the oil cup shell 12 and is located in the oil storage tank 11. After the seal 13 is installed to the oil cup shell 12, the lower end of the cylindrical protrusion 121 is located in the installation groove 132 of the seal 13. The function of a part of the connecting channel 131 in the installation groove 132 replaces the function of the first pressure relief hole 31, so there is no need to set the sealing block 32.

[0058] In other embodiments, see Figure 3 , the pressure relief assembly 30 can be formed by the first channel 125 provided on the side of the oil cup shell 12. A first channel 125 running through the upper and lower ends is provided on one side of the oil cup shell 12, one end of the first channel 125 is connected to the seal 13, and the other end is provided on the outer surface of the oil cup shell 12. A portion of the connecting channel 131 provided on the seal 13 can function as the first pressure relief hole 31, and the first channel 125 is provided with a second pressure relief hole 122 at the position where the oil cup shell 12 is located. The internal structure of the first channel 125 forms a pressure relief chamber 301, and the pressure relief assembly 30 is formed through the first channel 125 on the side wall of the oil cup shell 12, which can reduce the complexity of the structure.

[0059] In other embodiments, see Figure 4, the pressure relief component 30 extends into the oil storage bin 11, but does not contact the seal 13, that is, one end of the pressure relief component 30 extending into the oil storage bin 11 is suspended in the oil storage bin 11. The fixed end of the pressure relief component 30 is arranged on the side of the oil cup body 10 located at the suction nozzle 14, that is, the fixed end of the pressure relief component 30 is fixedly connected to the oil cup shell 12 at a position close to the suction nozzle 14. Therefore, a connecting channel 131 is provided at one end of the pressure relief component 30 located in the oil storage bin 11. The connecting channel 131 is connected to the oil storage bin 11, so that the oil storage bin 11 can form a pressure balance with the external atmospheric pressure through the connecting channel 131 and the pressure relief component 30, so as to achieve a pressure balance between the pressure inside the oil storage bin 11 and the external atmospheric pressure, and avoid leakage of the atomized matrix from the oil inlet end of the heating element 20. The pressure relief component 30 is also provided with a pressure relief chamber 301. The pressure relief component 30 is located at one end of the oil storage tank 11 and is provided with a first pressure relief hole 31. Preferably, the first pressure relief hole 31 is a part of the connecting channel 131. In this embodiment, the first pressure relief hole 31 and the connecting channel 131 are the same channel. The end of the pressure relief component 30 connected to the oil cup shell 12 is provided with a second pressure relief hole 122. Preferably, when the device is placed vertically, the pressure relief component 30 is located at one end of the oil storage tank 11 and is located above the atomizing matrix. When the oil storage tank 11 is unbalanced with the external air pressure, the air in the oil storage tank 11 is preferentially depressurized.

[0060] In other embodiments, the pressure relief chamber 301 of the pressure relief assembly 30 is provided with oil-absorbing cotton 33 at one end of the second pressure relief hole 122. In order to prevent the atomized matrix in the pressure relief assembly 30 from leaking from the second pressure relief hole 122, the oil-absorbing cotton 33 can absorb a portion of the atomized matrix, thereby reducing the probability of the atomized matrix leaking out of the oil cup shell 12. Preferably, the oil-absorbing cotton 33 is provided with a plurality of through holes, so that after the oil-absorbing cotton 33 is full of the atomized matrix, the air circulation of the oil-absorbing cotton 33 can be maintained.

[0061] In other embodiments, see Figure 5 A balancing membrane 34 is provided in the pressure relief chamber 301 of the pressure relief component 30. The balancing membrane 34 has a certain elasticity and will be deformed when subjected to pressure. The balancing membrane 34 can be deformed regardless of the pressure of the oil storage bin 11 or the external atmospheric pressure, so that the oil storage bin 11 is balanced with the external atmospheric pressure. The balancing membrane 34 is provided in the pressure relief chamber, which is beneficial to prevent the atomized matrix flowing into the pressure relief component 30 from flowing out from the second pressure relief hole 122, thereby eliminating the risk of leakage of the atomized matrix. Specifically, the balancing membrane 34 is provided on a mounting frame, and the mounting frame is fixed in the pressure relief chamber 301.

[0062] In other embodiments, see Figure 6, the pressure relief assembly 30 is formed as a separate component connected to the oil cup body 10. Among them, the pressure relief assembly 30 includes a mounting cylinder 302 connected to the oil cup body 10 (that is, the oil cup shell 12), and a first blocking member 303 and a second blocking member 304 are respectively arranged at both ends of the mounting cylinder 302. The interior of the mounting cylinder 302 is a hollow structure, so that the first blocking member 303 and the second blocking member 304 arranged at both ends form the pressure relief chamber 301. The oil cup shell 12 is provided with a connecting hole that passes through the oil storage bin 11, and the mounting cylinder 302 is installed in the connecting hole, and one end extends out of the oil storage bin 11, and the other end is fixedly connected to the connecting hole. Specifically, a thread is provided on the outside of the mounting cylinder 302, and is connected to the connecting hole through the thread. The pressure relief assembly 30 is inserted into the oil storage bin 11 from the outside of the oil cup shell 12, and then fixed to the oil cup shell 12 through the thread. The first pressure relief hole 31 is arranged on the first plugging member 303, and is connected to the oil storage bin 11 and the pressure relief chamber 301 respectively. The second pressure relief hole 122 is arranged on the second plugging member 304, and is connected to the external atmospheric pressure and the pressure relief chamber 301 respectively, so that the oil storage bin 11 forms a connecting channel with the outside world through the pressure relief assembly 30, thereby achieving the purpose of pressure relief of the oil storage bin 11. One end of the pressure relief assembly 30 is fixed on the oil cup shell 12, and the other end is suspended inside the oil storage bin 11. It may not be connected to the sealing member 13, which reduces the complexity of the structure and improves the convenience of installation. Preferably, one end of the pressure relief assembly 30 suspended on the oil storage bin 11 is located above the liquid level of the atomized matrix, and the air in the oil storage bin 11 can be directly depressurized.

[0063] An electronic atomizer includes a housing 200 , a battery 300 , a circuit board, and the above-mentioned pressure-balanced oil cup device 100 . The pressure-balanced oil cup device 100 is arranged on the upper part of the housing 200 .

[0064] Compared with the prior art, the utility model provides a pressure relief component 30 in the oil storage tank 11, and the oil storage tank 11 is connected with the outside world through the pressure relief component 30, so that when there is a pressure difference between the oil storage tank 11 and the external atmospheric pressure, a part of the atomized matrix or air in the oil storage tank 11 flows into the pressure relief chamber 301 of the pressure relief component 30, thereby balancing the air pressure in the oil storage tank 11 with the external atmospheric pressure, thereby preventing the atomized matrix from leaking from the heating element.

[0065] The above examples are only used to further illustrate the technical content of the utility model, so that readers can understand it more easily, but it does not mean that the implementation methods of the utility model are limited to this. Any technical extension or re-creation made based on the utility model is protected by the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A pressure-balanced oil cup device, characterized in that: It includes an oil cup body, a heating element arranged in the oil cup body, and a pressure relief component arranged in the oil cup body; the oil cup body is provided with an oil storage bin for containing an atomized matrix; the pressure relief component is provided with a pressure relief cavity; one end of the pressure relief cavity is connected to the oil storage bin, and the other end is connected to the external atmospheric pressure.

2. A pressure-balanced oil cup device according to claim 1, characterized in that: The oil cup body includes an oil cup shell and a seal arranged at one end of the oil cup shell; the oil storage tank is formed between the oil cup shell and the seal; one end of the pressure relief chamber is connected to the oil storage tank through the seal, and the other end is connected to the external atmospheric pressure through the oil cup shell.

3. A pressure-balanced oil cup device according to claim 2, characterized in that: The sealing member is provided with at least two connecting passages; one end of the connecting passage is communicated with the oil storage tank, and the other end is communicated with the pressure relief chamber.

4. A pressure-balanced oil cup device according to claim 3, characterized in that: The sealing member is provided with a mounting groove for mounting a pressure relief component on one side of the oil storage tank; the inner wall and the bottom of the mounting groove are provided with grooves so that the connecting channel is formed after the pressure relief component is installed in the mounting groove.

5. A pressure-balanced oil cup device according to claim 4, characterized in that: The connecting channel includes a first channel arranged on the side wall of the installation groove, and a second channel arranged on the bottom of the installation groove; the first channel and the second channel are connected to each other; the first channel is connected to the oil storage tank, and the second channel is connected to the pressure relief component.

6. A pressure-balanced oil cup device according to claim 3, characterized in that: One end of the pressure relief component communicating with the connecting channel is provided with a first pressure relief hole; the first pressure relief hole is communicated with the pressure relief chamber.

7. A pressure-balanced oil cup device according to claim 6, characterized in that: A sealing block is arranged at one end of the pressure relief component close to the connecting channel; and the first pressure relief hole is arranged in the sealing block.

8. A pressure-balanced oil cup device according to claim 4, characterized in that: The pressure relief component is a cylindrical protrusion extending from one side of the oil cup shell toward the oil storage tank; one end of the cylindrical protrusion stops at the mounting groove, so that the cylindrical protrusion and the sealing member form a pressure relief component.

9. A pressure-balanced oil cup device according to claim 2, characterized in that: The oil cup shell is provided with a second pressure relief hole connected with the pressure relief chamber; the pressure relief chamber is connected with the external atmospheric pressure through the second pressure relief hole.

10. A pressure-balanced oil cup device according to claim 9, characterized in that: An oil filling plug is arranged on the outside of the oil cup shell; the oil cup shell is provided with a fixing hole connected with the pressure relief chamber; the fixing end of the oil filling plug is arranged in the fixing hole; the second pressure relief hole is arranged at the fixing end of the oil filling plug.

11. A pressure-balanced oil cup device according to claim 1, characterized in that: A balance membrane is arranged in the pressure relief chamber.

12. The pressure-balanced oil cup device according to claim 1, characterized in that: The pressure relief component is located at one end of the oil storage tank and is suspended in the oil storage tank; the pressure relief component is located at one end of the oil storage tank and is provided with a first pressure relief hole; the pressure relief component is connected to the oil cup body and is provided with a second pressure relief hole.

13. The pressure-balanced oil cup device according to claim 1, characterized in that: The pressure relief assembly includes a mounting tube connected to the oil cup body, and a first sealing member and a second sealing member respectively arranged at both ends of the mounting tube; the interior of the mounting tube is a hollow structure; one end of the first sealing member arranged on the mounting tube is located in the oil storage tank, and the first sealing member is provided with a first pressure relief hole; one end of the second sealing member arranged on the mounting tube is connected to the oil cup body, and the second sealing member is provided with a second pressure relief hole.

14. An electronic atomizer, characterized in that: It comprises a housing, a battery, a circuit board, and the pressure-balanced oil cup device according to any one of claims 1 to 13; the pressure-balanced oil cup device is arranged on the upper part of the housing.

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