Gas exchange valve and atomizer
By designing the support and switching components of the ventilation valve, pressure balance is achieved inside and outside the liquid storage chamber, solving the problem of pressure imbalance in aerosol generation equipment, preventing aerosol matrix leakage and atomizing core dry burning, and improving user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HG INNOVATION LTD
- Filing Date
- 2024-10-08
- Publication Date
- 2026-04-10
AI Technical Summary
Pressure imbalance inside and outside the liquid storage chamber in aerosol generation equipment can lead to easy leakage of the aerosol matrix or easy dry burning of the atomizing core, affecting the user experience.
Design a ventilation valve, including a support and a switch, to achieve pressure balance inside and outside the liquid storage chamber through the ventilation channel. The movable part of the switch can block or open the channel according to the pressure difference to prevent aerosol matrix leakage and atomizing core dry burning.
It effectively prevents aerosol matrix leakage and atomizing core dry burning, thus improving the user experience.
Smart Images
Figure CN121817536A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electronic atomization technology, specifically to a ventilation valve and an atomizer. Background Technology
[0002] Aerosol generating devices heat an aerosol matrix, causing it to atomize and mix with air to form an aerosol, which is then discharged through an airflow channel. Therefore, aerosol generating devices typically include a storage chamber for storing the aerosol matrix. When the pressure inside the storage chamber is greater than the external pressure, the excessive pressure will force the aerosol matrix to leak. When the pressure inside the storage chamber is less than the external pressure, the aerosol matrix will have difficulty entering the atomizing core for heating, causing the atomizing core to burn due to dry burning, which will greatly affect the user experience. Summary of the Invention
[0003] This application provides a ventilation valve and an atomizer to solve the problems in related technologies, such as easy leakage of aerosol matrix or easy dry burning of atomizing core caused by the pressure imbalance inside and outside the liquid storage chamber of aerosol generation equipment.
[0004] In one embodiment, a ventilation valve is provided, comprising:
[0005] A support member is provided with a cavity; the support member has a first end and a second end opposite to each other, and a ventilation channel is formed in the cavity. The ventilation channel includes a first channel and a second channel that can be respectively connected to the outside of the ventilation valve through the first end and the second end.
[0006] A switching element disposed within the cavity; the switching element having a first lip and a second lip that engage or disengage from the support member in response to pressure on both sides thereof;
[0007] The ventilation valve has a natural state and a ventilation state;
[0008] In the natural state, the first lip portion and the second lip portion are respectively configured to fit against the support member, thereby closing the first channel and the second channel;
[0009] In the ventilation state, one of the first lip portion and the second lip portion is in contact with the support member, and the other is at least partially separated from the support member, thereby opening one of the first channel and the second channel while keeping the other closed.
[0010] In one embodiment, it includes:
[0011] The first channel has a first air inlet, which is located at the second end;
[0012] The second channel has a second air inlet, which is located at the first end;
[0013] The support member has a first surface and a second surface opposite each other, the switch member forms a first channel with the first surface of the support member, and the switch member forms a second channel with the second surface of the support member;
[0014] The ventilation state has a first state and a second state;
[0015] In the first state, the first lip portion elastically deforms and at least partially separates from the first surface to open the first channel, while the second lip portion adheres to the second surface to block the second channel.
[0016] In the second state, the second lip portion elastically deforms and at least partially separates from the second surface to open the second channel, while the first lip portion adheres to the first surface to block the second channel.
[0017] In one embodiment, the support member includes a support shaft and a support cylinder, wherein a hollow region is formed through the support cylinder from the first end to the second end, and the support shaft is disposed within the hollow region along the axial direction of the support cylinder; the inner wall of the support cylinder forms the first surface, and the outer wall of the support shaft forms the second surface;
[0018] The switch is a ring structure and is sleeved on the support shaft; the gap between the outer peripheral side of the switch and the first surface forms the first channel, and the gap between the inner peripheral side of the switch and the second surface forms the second channel.
[0019] The first lip is configured to conform to or separate from the first surface in response to pressure on its sides, thereby blocking or opening the first channel;
[0020] The second lip is configured to conform to or separate from the second surface in response to pressure on its sides, thereby blocking or opening the second channel.
[0021] In one embodiment, the edge of the switch near the first end forms a first lip, and the edge of the switch near the second end forms a second lip; the inner diameter of the hollow channel formed by the first lip gradually increases in the direction away from the second end; the outer diameter of the second lip gradually decreases in the direction away from the first end.
[0022] In one embodiment, along the axial direction of the support cylinder, the wall thickness of the first lip gradually decreases towards the first end, and the wall thickness of the second lip gradually decreases towards the second end.
[0023] In one embodiment, the ventilation channel includes a plurality of flow channel cavities formed between the support member and the switching member, and a plurality of connecting channels communicating with adjacent flow channel cavities; the adjacent connecting channels are staggered.
[0024] In one embodiment, the connection channel is a capillary channel.
[0025] In one embodiment, the surface of the switch is provided with a plurality of protrusions spaced apart along the axial direction of the support member. The protrusions extend circumferentially along the switch and abut against the support member to form a plurality of flow channel cavities in the ventilation channel. At least one drain port connecting the flow channel cavities on both sides of the protrusion is also formed on the protrusion, and the drain ports formed on adjacent protrusions are staggered. Therefore, the drain ports form the connecting channel.
[0026] In one embodiment, the switching element is an integral structure made of an elastic material.
[0027] In one embodiment, an atomizer is also provided, including the above-described air exchange valve; it also includes a liquid storage chamber and an exchange channel connecting the liquid storage chamber to the outside of the liquid storage chamber; the air exchange valve is disposed in the exchange channel, and one of the first end or the second end is close to the liquid storage chamber and connected to the liquid storage chamber, while the other end is far from the liquid storage chamber and connected to the outside of the liquid storage chamber.
[0028] According to the above embodiments, since the two ends of the air exchange valve are connected through the air exchange channel, the movable part of the switch can isolate or connect the air exchange channel, thereby enabling the air exchange valve to connect the liquid storage chamber to the outside of the liquid storage chamber, achieving pressure balance through gas exchange, and reducing the risk of leakage and dry burning of the aerosol matrix. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the ventilation valve structure in an embodiment of this application.
[0030] Figure 2 This is a schematic diagram of the cross-section of the air exchange valve in an embodiment of this application.
[0031] Figure 3 This is a schematic diagram of an explosion of the air exchange valve in an embodiment of this application.
[0032] Figure 4 This is a schematic diagram of the switch structure in an embodiment of this application.
[0033] Figure 5 This is a schematic cross-sectional view of the switch element in an embodiment of this application.
[0034] Figure 6 This is a schematic diagram of the atomizer structure in an embodiment of this application.
[0035] Figure 7 This is a schematic cross-sectional view of the atomizer in an embodiment of this application.
[0036] The accompanying diagrams are labeled as follows:
[0037] 1-Ventilation valve; 11-First surface; 12-Second surface;
[0038] 2-Support component; 21-First end; 22-Second end; 23-Ventilation channel; 24-First channel; 241-First air inlet; 25-Second channel; 251-Second air inlet; 26-Support shaft; 27-Support cylinder; 28-Flow channel cavity; 29-Connecting channel;
[0039] 3-Switch element; 31-Moving part; 32-First lip; 33-Second lip; 34-Protrusion; 35-Drainage port;
[0040] 4-Shell assembly; 41-Liquid storage chamber; 42-Exchange channel; 43-Atomizing tube; 44-Atomizing core; 45-Airflow channel; 46-Air inlet channel. Detailed Implementation
[0041] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of this application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to this application are not shown or described in the specification. This is to avoid obscuring the core parts of this application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.
[0042] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.
[0043] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).
[0044] In related technologies, aerosol generation equipment may experience situations where the internal pressure of the liquid storage chamber exceeds the external pressure due to a low external pressure environment or high internal operating temperatures. This pressure difference can cause the aerosol matrix inside the storage chamber to be compressed and leak. Furthermore, if the external pressure of the storage chamber is higher than the internal pressure, the liquid in the storage chamber cannot be effectively delivered to the atomizing core. This can lead to the atomizing core burning due to dry burning, resulting in a burnt smell and negatively impacting the user experience.
[0045] To solve the above-mentioned technical problems, this application provides a ventilation valve 1, please refer to... Figure 1 and Figure 2 The ventilation valve 1 includes:
[0046] Support member 2 is provided with a cavity; support member 2 has a first end 21 and a second end 22 opposite to each other, and a ventilation channel 23 is formed in the cavity. The ventilation channel 23 includes a first channel 24 and a second channel 25 that can be connected to the outside of the ventilation valve 1 through the first end 21 and the second end 22, respectively.
[0047] The switch element 3 is disposed in the cavity; the switch element 3 has a first lip 32 and a second lip 33 that are in contact with or separate from the support element 2 in response to pressure on both sides;
[0048] The ventilation valve 1 has a natural state and a ventilation state;
[0049] In its natural state, the first lip 32 and the second lip 33 are respectively configured to fit against the support member 2, thereby closing the first channel 24 and the second channel 25;
[0050] In the ventilated state, one of the first lip portion 32 and the second lip portion 33 is in contact with the support member 2, while the other is at least partially separated from the support member 2, thereby allowing one of the first channel 24 and the second channel 25 to open while the other remains closed.
[0051] The ventilation valve 1 in this embodiment can be applied to an atomizer. By setting the ventilation valve 1, the pressure balance inside and outside the liquid storage chamber 41 of the atomizer can be achieved, thereby preventing leakage of the aerosol matrix when the internal pressure of the liquid storage chamber 41 is greater than the external pressure. It can also prevent the atomizing core 44 from burning due to dry burning when the external pressure of the atomizer is greater than the internal pressure.
[0052] The air exchange valve 1 includes a support member 2, which supports the switch member 3 disposed within the cavity and prevents the switch member 3 from being damaged. In order to achieve internal and external pressure balance, the air exchange valve 1 itself has a structure for internal and external ventilation. The corresponding support member 2 is provided with a cavity, and an air exchange channel 23 is formed in the cavity. The air exchange channel 23 can be connected to the outside according to the first end 21 and the second end 22 of the support member 2, so that the switch member 3 can form a gas exchange with the two ends of the air exchange valve 1 to balance the pressure inside and outside the liquid storage chamber 41 of the atomizer.
[0053] To prevent leakage of the aerosol matrix from the ventilation valve 1, the ventilation channel 23 is not always kept in a state where it can connect the storage chamber 41 to the outside. In this embodiment, the ventilation valve 1 includes a switch 3 disposed within a cavity, and the switch 3 has a movable part 31. At least a portion of the structure of the movable part 31 can be engaged or disengaged from the support member 2 according to the pressure on both sides, thereby isolating or opening the ventilation channel 23. When the ventilation channel 23 is isolated, the possibility of leakage of the aerosol matrix from the ventilation channel 23 is simultaneously blocked. The engagement or disengagement of the movable part 31 from the support member 2 is responsive to the pressure on both sides of the movable part 31, specifically, to the pressure difference on both sides of the movable part 31. When the pressure difference on both sides of the movable part 31 is greater than the elastic force required to overcome the deformation of the movable part 31, the movable part 31 will deform in the corresponding direction, thereby separating from the support member 2 and opening the ventilation channel 23.
[0054] To allow the movable part 31 to adaptively close or open the ventilation channel 23 based on the pressure on both sides, in some optional embodiments, the ventilation channel 23 may specifically include a first channel 24 and a second channel 25. The first channel 24 can be connected to the outside of the ventilation valve 1 via a first end 21 and a second end 22, and the second channel 25 can also be connected to the outside of the ventilation valve 1 via the first end 21 and the second end 22. The outside of the ventilation valve 1 includes the area outside the first end 21 and the area outside the second end 22. When the first end 21 and the second end 22 are installed in the atomizer, one of them is connected to the liquid storage chamber, and the other is connected to the outside of the liquid storage chamber. In this structure, the opening and closing of the first channel 24 and the second channel 25 are relatively independent, meaning that the closure or opening of the first channel 24 and the second channel 25 can be controlled independently. Specifically, one of the first channel 24 and the second channel 25 can be used as a pressure relief channel to expel internal air from the outside when the internal pressure of the liquid storage chamber 41 is greater than the external pressure, and the other can be used as a replenishment channel to bring in air from the outside when the internal pressure of the liquid storage chamber 41 is less than the external pressure.
[0055] Correspondingly, in order to achieve the opening and closing of the first channel 24 and the second channel 25 respectively, the movable part 31 may specifically include a first lip 32 and a second lip 33. Depending on the opening and closing status of the ventilation channel 23, the ventilation valve has at least two states: a natural state and a ventilation state. In the natural state, the first lip 32 and the second lip 33 are configured to fit against the support member 2, thereby closing the first channel 24 or the second channel 25. This isolates the first end 21 and the second end 22 of the support member 2 from each other, preventing the aerosol matrix from leaking from the ventilation channel 23. In the ventilation state, one of the first lip 32 and the second lip 33 fits against the support member 2, but the other is at least partially separated from the support member 2 under the pressure on both sides. Thus, in the first channel 24 and the second channel 25, one is opened while the other remains closed, allowing the gas on the side with higher pressure to flow through the open ventilation channel 23, thereby achieving pressure balance. For example, the first lip portion 32 is configured to adhere to or separate from the support member 2 in response to pressure on both sides, so as to block or open the first channel 24; when blocking the first channel 24, the first lip portion 32 is inclined towards the first end 21 and sealed against the support member 2, and can elastically deform towards the side closer to the second end 22 when subjected to force to open the first channel 24; the second lip portion 33 is configured to adhere to or separate from the support member 2 in response to pressure on both sides, so as to block or open the second channel 25; when blocking the second channel 25, the second lip portion 33 is inclined towards the second end 22 and sealed against the support member 2, and can elastically deform towards the side closer to the first end 21 when subjected to force to open the second channel 25. In other words, the movable part 31 in this embodiment includes two parts: a first lip 32 and a second lip 33. The first lip 32 is disposed in the first channel 24 and can respond to pressure on its sides to fit or separate from the support member 2. When it fits into the support member 2, it blocks the first channel 24; when it separates from the support member 2, it opens the first channel 24. Similarly, the second lip 33 is disposed in the second channel 25 and can respond to pressure on its sides to fit or separate from the support member 2. When it fits into the support member 2, it blocks the second channel 25; when it separates from the support member 2, it opens the second channel 25.
[0056] If the first channel 24 serves as a pressure relief channel and the corresponding second channel 25 serves as a gas replenishment channel, then when the pressure inside the liquid storage chamber 41 is lower than the external pressure, the first lip 32 remains in contact with the support member 2, thus blocking the first channel 24; while the second lip 33 separates from the support member 2, thereby opening the second channel 25 and allowing external air to enter the liquid storage chamber 41, restoring the pressure balance inside and outside the liquid storage chamber 41; when the pressure inside the liquid storage chamber 41 is higher than the external pressure, the second lip 33 remains in contact with the support member 2, thus blocking the second channel 25, while the first lip 32 can separate from the support member 2, thereby opening the first channel 24 and allowing air inside the liquid storage chamber 41 to flow out, thus restoring the pressure balance inside and outside the liquid storage chamber 41.
[0057] In some optional embodiments, in order to achieve independent on / off control of the first channel 24 and the second channel 25, the first channel 24 may have a first air inlet 241, which is disposed at the second end 22; the second channel 25 may have a second air inlet 251, which is disposed at the first end 21; the support member 2 has a first surface 11 and a second surface 12 opposite to each other, the switch member and the first surface 11 of the support member 2 form the first channel 24, and the switch member and the second surface 12 of the support member 2 form the second channel 25; the ventilation state has a first state and a second state; in the first state, the first lip 32 elastically deforms and at least partially separates from the first surface 11 to open the first channel 24, and the second lip 33 adheres to the second surface 12 to block the second channel 25; in the second state, the second lip 33 elastically deforms and at least partially separates from the second surface 12 to open the second channel 25, and the first lip 32 adheres to the first surface 11 to block the second channel 25. The first surface 11 and the second surface 12 are corresponding inner surfaces of the support member 2 for forming the cavity. The first surface 11 can elastically fit with the first lip 32, and the second surface 12 can elastically fit with the second lip 33. In the natural state, the first lip 32 and the second lip 33 are respectively fitted with the first surface 11 and the second surface 12 so that the first channel 24 and the second channel 25 are both kept in a closed state. The ventilation state can be divided into a first state and a second state according to the pressure inside the liquid storage cavity and the external pressure. In the first state, the first lip In the first state, the edge 32 undergoes elastic deformation, causing at least part of the first lip 32 to separate from the first surface 11, thereby opening the first channel 24. However, the second lip 33 remains attached to the second surface 12, blocking the second channel 25, so only the first channel 24 is open. In the second state, the second lip 33 undergoes elastic deformation, causing at least part of the second lip 33 to separate from the second surface 12, thereby opening the second channel 25. However, the first lip 32 remains attached to the first surface 11, blocking the first channel 24, so only the second channel 25 is open. Therefore, the corresponding gas exchange process is also unidirectional.
[0058] The first air inlet 241 is used so that the first channel 42 can always be connected to the outside of the air exchange valve 1 through the second end 22, and the second air inlet 251 is used so that the second channel 25 can always be connected to the outside of the air exchange valve 1 through the first end 21.
[0059] In some alternative embodiments, please refer to Figure 2 and Figure 3 To facilitate the relatively independent and individual control of the first channel 24 and the second channel 25, the support member 2 may specifically include a support shaft 26 and a support cylinder 27. The support cylinder 27 forms a hollow region extending from the first end 21 to the second end 22. The support shaft 26 is arranged in the hollow region along the axial direction of the support cylinder 27. The inner wall of the support cylinder 27 forms a first surface 11, and the outer wall of the support shaft 26 forms a second surface 12. The switch member 3 is an annular structure and is sleeved on the support shaft 26. The gap between the outer peripheral side of the switch member 3 and the first surface 11 forms the first channel 24, and the gap between the inner peripheral side of the switch member 3 and the second surface 12 forms the second channel 25. The first lip portion 32 is configured to respond to the pressure on both sides to fit or separate from the first surface 11 to block or open the first channel 24. The second lip portion 33 is configured to respond to the pressure on both sides to fit or separate from the second surface 12 to block or open the second channel 25. The support member 2 includes a support shaft 26 and a support cylinder 27, with the support cylinder 27 located on the outer side and the support shaft 26 located on the inner side. A fixed connection is formed between the support cylinder 27 and the support shaft 26, creating a cavity between them, which serves as the ventilation channel 23. Therefore, the inner wall of the support cylinder 27 serves as the first surface 11, and the outer wall of the support shaft 26 serves as the second surface 12. The switch member 3 is sleeved on the support shaft 26. Based on the switch member 3, the ventilation channel 23 can be divided into an inner and outer section, forming a first channel 24 and a second channel 25. The first channel 24 is formed by the gap between the outer periphery of the switch member 3 and the first surface 11, and the second channel 25 is formed by the gap between the inner periphery of the switch member 3 and the second surface 12. A corresponding first lip 32 is used to engage or disengage with the first surface 11 to control the opening or closing of the first channel 24; a second lip 33 is used to engage or disengage with the second surface 12 to control the opening or closing of the second channel 25.
[0060] In some alternative embodiments, please refer to Figure 4 and Figure 5The specific formation of the first lip portion 32 and the second lip portion 33 can be as follows: the first lip portion 32 is formed at the edge of the switch member 3 near the first end 21, and the second lip portion 33 is formed at the edge of the switch member 3 near the second end 22; the inner diameter of the hollow channel formed by the first lip portion 32 gradually increases in the direction away from the second end 22; the outer diameter of the second lip portion 33 gradually decreases in the direction away from the first end 21. The first lip portion 32 extends from the edge of the switch member 3 near the first end 21 in the direction away from the second end 22, and the hollow channel of the first lip portion 32 gradually increases, which is equivalent to the first lip portion 32 forming a trumpet shape; the second lip portion 33 extends from the edge of the switch member 3 near the second end 22 in the direction away from the first end 21, and the outer diameter of the second lip portion 33 gradually decreases, which is equivalent to the second lip portion 33 forming a cone shape. The edge of the first lip portion 32 can be fitted or separated from the inner wall of the support cylinder 27, thereby achieving the isolation or connection of the first channel 24; correspondingly, the edge of the second lip portion 33 can also be fitted or separated from the support shaft 26, thereby achieving the isolation or connection of the second channel 25.
[0061] Based on the shapes of the first lip portion 32 and the second lip portion 33, when the pressure inside the liquid storage cavity 41 is greater than the external pressure, the first lip portion 32 remains in contact with the support cylinder 27 under the action of the pressure difference on both sides, thereby maintaining the isolation of the first channel 24; the second lip portion 33 separates from the support shaft 26, thereby opening the second channel 25. Therefore, the air inside the liquid storage cavity 41 can be discharged to the outside through the second channel 25, achieving pressure balance inside and outside the liquid storage cavity 41. When the external pressure of the liquid storage cavity 41 is greater than the internal pressure, the first lip portion 32 separates from the support cylinder 27 under the action of the pressure on both sides, thereby opening the first channel 24. The second lip portion 33 remains in contact with the support shaft 26, thereby maintaining the isolation of the second channel 25. Therefore, external air can enter the liquid storage cavity 41 through the first channel 24, achieving pressure balance inside and outside the liquid storage cavity 41.
[0062] In some alternative embodiments, to improve the sensing sensitivity of the first lip portion 32 and the second lip portion 33, the wall thickness of the first lip portion 32 gradually decreases towards the first end 21, and the wall thickness of the second lip portion 33 gradually decreases towards the second end 22, along the axial direction of the support cylinder 27. The thinner the first lip portion 32 and the second lip portion 33, the greater the possibility of deformation based on the pressure difference between the two sides, meaning the higher the sensing sensitivity of the first lip portion 32 and the second lip portion 33.
[0063] In some alternative embodiments, please refer to Figure 4 and Figure 5In addition to preventing aerosol matrix leakage by opening and closing the ventilation channel 23 through the movable part 31, the ventilation channel 23 can also be designed to isolate the aerosol matrix itself. Specifically, the ventilation channel 23 may include multiple flow channel cavities 28 formed between the support member 2 and the switching member 3, and a number of connecting channels 29 connecting adjacent flow channel cavities 28; the adjacent connecting channels 29 are staggered. In this embodiment, the ventilation channel 23 is configured as a multi-segment connection, consisting of multiple flow channel cavities 28 and connecting channels 29 connecting adjacent flow channel cavities 28; moreover, the adjacent connecting channels 29 are staggered, so even if the aerosol matrix leaks, the risk of further leakage is reduced due to the staggered connecting channels 29.
[0064] In some alternative embodiments, to further reduce the risk of aerosol matrix leakage, the connecting channel 29 may specifically be a capillary channel. A capillary channel is characterized by its ability to partially isolate liquids while allowing gas to pass through, thereby reducing the risk of aerosol matrix leakage.
[0065] In some alternative embodiments, please refer to Figure 4 and Figure 5 In order to form a multi-segment connected ventilation channel 23, the surface of the switch 3 in this embodiment is provided with a plurality of protrusions 34 distributed at intervals along the axial direction of the support 2. The protrusions 34 extend circumferentially along the switch 3 and abut against the support 2 to form a plurality of flow channel cavities 28 in the ventilation channel 23. At least one flow outlet 35 is also formed on the protrusion 34 to connect the flow channel cavities 28 on both sides thereon, and the flow outlets 35 formed on adjacent protrusions 34 are staggered. Therefore, the flow outlets 35 form a connecting channel 29. Specifically, the surface of the switch element 3 includes its outer surface and / or inner surface. That is, when the switch element 3 has a ring-shaped structure, the first channel 24 and the second channel 25 divided by the ventilation channel 23 can each form an independent multi-segment airway. In the multi-segment airway, the flow channel cavity 28 is formed at intervals by protrusions 34. The protrusions 34 can extend circumferentially along the surface of the switch element 3 to form a complete ring of protrusions, thereby forming a circumferentially extending flow channel cavity 28 on the surface of the switch element 3. Adjacent flow channel cavities 28 are connected through drainage ports 35 formed on the protrusions 34. To isolate liquid and prevent leakage of the aerosol matrix, the drainage ports 35 formed on adjacent protrusions 34 are staggered. Furthermore, the drainage ports 35 formed on the same protrusion 34 can include one or more, and each drainage port 35 can be symmetrically arranged based on the axial direction of the switch element 3. In this embodiment, the flow channel cavity 28 and the connecting channel 29 are formed by the switch element 3 and the support element 2 enclosing each other.
[0066] The switching element 3 can be a ring structure, which can divide the ventilation channel 23 into a first channel 24 and a second channel 25. The first channel 24 and the second channel 25 can each be formed by the aforementioned flow channel cavity 28 and the connecting channel 29. Specifically, the first channel 24 can be formed by the protrusion 34 on the outer periphery of the switching element 3 and the inner wall of the support cylinder 27 to form the flow channel cavity 28 and the connecting channel 29. The second channel 25 can be formed by the protrusion 34 on the inner periphery of the switching element 3 and the outer wall of the support shaft 26 to form the flow channel cavity 28 and the connecting channel 29.
[0067] In some optional embodiments, to ensure effective control of the opening and closing of the ventilation channel 23 by the switch element 3, the switch element 3 can be a one-piece structure made of elastic material. The movable part 31 is formed on the switch element 3, and therefore is also integrally formed with the switch element 3. Since the switch element 3 and the movable part 31 are made of elastic material, when the pressure difference between the two sides of the movable part 31 is small, the movable part 31 remains in contact with the support member 2 under its own elasticity to close the ventilation channel 23; when the pressure difference between the two sides of the movable part 31 is large, the movable part 31 can deform in the corresponding direction under the corresponding pressure difference to open the ventilation channel 23. In some embodiments, the elastic material can be a soft rubber material including silicone, which can have good sealing properties and also achieve elastic deformation.
[0068] Furthermore, in the one-piece structure of the switch 3 made of elastic material, the switch 3 is provided with a protrusion 34 to form a flow channel cavity 28 and a connecting channel 29. Through the elasticity of the switch 3, the protrusion 34 and the support member 2 can be tightly fitted, thereby ensuring the airtightness of the formed flow channel cavity 28 and connecting channel 29, including the airtightness of the first channel 24 and the second channel 25.
[0069] According to the ventilation valve in the embodiments of this application, since the two ends of the ventilation valve are connected through the ventilation channel, the movable part of the switch can isolate or connect the ventilation channel, thereby enabling the ventilation valve to connect the liquid storage chamber to the outside of the liquid storage chamber, achieving pressure balance through gas exchange, and reducing the risk of leakage and dry burning of the aerosol matrix.
[0070] This application also provides an atomizer in its embodiments; please refer to [reference needed]. Figure 6 and Figure 7 Specifically, it includes the air exchange valve 1 in the embodiments of this application; it also includes a liquid storage chamber 41, and an exchange channel 42 connecting the liquid storage chamber 41 and the outside of the liquid storage chamber 41; the air exchange valve 1 is disposed in the exchange channel 42, and one of the first end 21 or the second end 22 is close to the liquid storage chamber 41 and connected to the liquid storage chamber 41, while the other is far away from the liquid storage chamber 41 and connected to the outside of the liquid storage chamber 41.
[0071] The atomizer in this embodiment is used to heat the aerosol matrix to generate an aerosol; therefore, in order to contain the aerosol matrix, the atomizer in this embodiment includes a housing assembly 1, wherein the housing assembly 1 forms a liquid storage chamber 41 for storing the aerosol matrix. Furthermore, the aerosol matrix in the liquid storage chamber 41 can be replaceable / addable, meaning that the aerosol matrix can be added after it is used up.
[0072] The aerosol matrix stored in the liquid storage chamber 41 can be heated to generate aerosol, and then discharged from the liquid storage chamber 41; the shell assembly 1 also forms an airflow channel 45, which is connected to the liquid storage chamber 41, and the aerosol matrix is heated by the atomizing component to generate aerosol, and finally discharged from the airflow channel 45.
[0073] The housing assembly 1 can be integrally formed with the liquid storage chamber 41 and the airflow channel 45; or, the liquid storage chamber 41 and the airflow channel 45 can be formed separately, that is, the housing assembly 1 can include a suction nozzle, on which the airflow channel 45 is formed, and then the suction nozzle and the housing assembly 1 are fixedly connected.
[0074] To accommodate the atomizing core 44, the housing assembly 1 also includes an atomizing tube 43. The atomizing tube 43 can be integrally formed into the housing assembly 1 or fixedly connected to the housing assembly 1. The atomizing tube 43 is connected to the airflow channel 45, or in other words, the internal space of the atomizing tube 43 is part of the airflow channel 45. The atomizing core 44 is placed inside the atomizing tube 43. An inlet is provided between the atomizing tube 43 and the liquid storage chamber 41, so that the aerosol matrix can enter the atomizing tube 43 through the inlet, allowing the atomizing core 44 to heat the aerosol matrix to generate aerosol. To ensure that the aerosol matrix in the liquid storage chamber 41 can ultimately be heated by the atomizing core 44, the inlet on the atomizing tube 43 is located at the bottom of the liquid storage chamber 41. This avoids the situation where the aerosol matrix below the inlet cannot enter the atomizing tube 43 if the inlet is located at a high position.
[0075] In addition to the airflow channel 45 for discharging the aerosol generated by heating the aerosol matrix, the atomizer also includes an air intake channel 46 for allowing outside air to enter. That is, an air intake channel 46 is also formed on the housing assembly 1, which is connected to the liquid storage chamber 41. Specifically, the housing assembly 1 is connected to the atomizing core 44 so that outside air can enter the atomizing core 44 and mix with the heated aerosol matrix to form an aerosol.
[0076] Since the exchange channel 42 is connected to the liquid storage chamber 41, and the air exchange valve 1 is located inside the exchange channel 42 with one end close to and connected to the liquid storage chamber 41 and the other end far from the liquid storage chamber 41 and connected to the outside, the air exchange valve 1 is equivalent to connecting the liquid storage chamber 41 and the outside of the liquid storage chamber 41. In this way, the connection between the liquid storage chamber 41 and the outside of the liquid storage chamber 41 can be adjusted through the air exchange valve 1. When the liquid storage chamber 41 is connected to the outside of the liquid storage chamber 41, the pressure difference between the liquid storage chamber 41 and the outside of the liquid storage chamber 41 can be balanced. This can prevent the aerosol matrix from leaking due to excessive pressure inside the liquid storage chamber 41, and can also prevent the atomizing core 44 from burning dry due to insufficient pressure inside the liquid storage chamber 41.
[0077] Furthermore, the atomizer in this embodiment may include a power supply component, which can be detachably and fixedly connected to the housing component 1, thereby facilitating the replacement of the power supply component; alternatively, the housing component 1 may be non-detachably connected to the power supply component, and the power supply component may be rechargeable to replenish its power. The atomizer in this embodiment may also omit the power supply component and be configured to work with an external power supply device.
[0078] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.
Claims
1. A ventilation valve, characterized in that, include: A support member is provided with a cavity; the support member has a first end and a second end opposite to each other, and a ventilation channel is formed in the cavity. The ventilation channel includes a first channel and a second channel that can be respectively connected to the outside of the ventilation valve through the first end and the second end. A switching element disposed within the cavity; the switching element having a first lip and a second lip that engage or disengage from the support member in response to pressure on both sides thereof; The ventilation valve has a natural state and a ventilation state; In the natural state, the first lip portion and the second lip portion are respectively configured to fit against the support member, thereby closing the first channel and the second channel; In the ventilation state, one of the first lip portion and the second lip portion is in contact with the support member, and the other is at least partially separated from the support member, thereby opening one of the first channel and the second channel while keeping the other closed.
2. The ventilation valve as described in claim 1, characterized in that, include: The first channel has a first air inlet, which is located at the second end; The second channel has a second air inlet, which is located at the first end; The support member has a first surface and a second surface opposite each other, the switch member forms a first channel with the first surface of the support member, and the switch member forms a second channel with the second surface of the support member; The ventilation state has a first state and a second state; In the first state, the first lip portion elastically deforms and at least partially separates from the first surface to open the first channel, while the second lip portion adheres to the second surface to block the second channel. In the second state, the second lip portion elastically deforms and at least partially separates from the second surface to open the second channel, while the first lip portion adheres to the first surface to block the second channel.
3. The ventilation valve as described in claim 2, characterized in that, The support member includes a support shaft and a support cylinder. A hollow region is formed through the support cylinder from the first end to the second end. The support shaft is disposed in the hollow region along the axial direction of the support cylinder. The inner wall of the support cylinder forms the first surface, and the outer wall of the support shaft forms the second surface. The switch is a ring structure and is sleeved on the support shaft; the gap between the outer peripheral side of the switch and the first surface forms the first channel, and the gap between the inner peripheral side of the switch and the second surface forms the second channel. The first lip is configured to conform to or separate from the first surface in response to pressure on its sides, thereby blocking or opening the first channel; The second lip is configured to conform to or separate from the second surface in response to pressure on its sides, thereby blocking or opening the second channel.
4. The ventilation valve as described in claim 3, characterized in that, The first lip is formed at the edge of the switch near the first end, and the second lip is formed at the edge of the switch near the second end; the inner diameter of the hollow channel formed by the first lip gradually increases in the direction away from the second end; the outer diameter of the second lip gradually decreases in the direction away from the first end.
5. The ventilation valve as described in claim 4, characterized in that, Along the axial direction of the support cylinder, the wall thickness of the first lip gradually decreases towards the first end, and the wall thickness of the second lip gradually decreases towards the second end.
6. The ventilation valve according to any one of claims 1-5, characterized in that, The ventilation channel includes multiple flow channel cavities formed between the support member and the switching member, and several connecting channels connecting adjacent flow channel cavities; the adjacent connecting channels are staggered.
7. The ventilation valve as described in claim 6, characterized in that, The connection channel is a capillary channel.
8. The ventilation valve as described in claim 6, characterized in that, The surface of the switch is provided with a plurality of protrusions spaced apart along the axial direction of the support member. The protrusions extend circumferentially along the switch and abut against the support member to form a plurality of flow channel cavities in the ventilation channel. At least one drain port is also formed on each protrusion to connect the flow channel cavities on both sides thereon, and the drain ports formed on adjacent protrusions are staggered. Therefore, the drain ports form the connecting channel.
9. The ventilation valve according to any one of claims 1-5, characterized in that, The switch is a one-piece structure made of elastic material.
10. An atomizer, characterized in that, It includes a venting valve as described in any one of claims 1-9; it also includes a liquid storage chamber and an exchange channel connecting the liquid storage chamber and the outside of the liquid storage chamber; the venting valve is disposed in the exchange channel, and one of the first end or the second end is close to the liquid storage chamber and communicates with the liquid storage chamber, while the other end is far from the liquid storage chamber and communicates with the outside of the liquid storage chamber.