Liquid storage device and aerosol generating device
By designing a combination of a breathable, water-permeable membrane and movable parts in an electronic cigarette atomizer, the problem of oil leakage in traditional oil storage structures under different environments is solved, and the sealing property and liquid leakage are reduced under different pressures are achieved.
Patent Information
- Application Number
- CN201811407814.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-11-23
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2038-11-23
AI Technical Summary
During use, traditional electronic cigarette atomizers, especially in environments where they travel by plane and undergo temperature changes, have a greater risk of oil leakage in the oil storage structure, resulting in e-liquid pollution and negative pressure affecting oil output.
Design a liquid storage device, including a built-in air-permeable and impermeable membrane and a first movable member, which divides the inner cavity of the shell into a liquid-reserving cavity and a valve cavity. The first movable member can move in the valve cavity to blockage. The ventilation port, combined with the connector and seal, ensures that liquid leakage is prevented under different pressure conditions.
It effectively reduces the risk of leakage of the smoke liquid in the liquid storage chamber through the vent port, maintains sealing, adapts to different environmental pressures, and reduces the risk of liquid being extruded outside the device.
Smart Images
Figure CN111213918B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of aerosol generation, and in particular to a liquid storage device and an aerosol generation device. Background Art
[0002] In traditional electronic cigarette atomizers, since the oil circuit and the gas circuit need to be connected, when the gas circuit needs to keep the suction unobstructed, the smoke oil is easy to leak from the gas circuit channel. The leaked smoke oil will cause the product and the packaging to be contaminated, and it is also easy to cause the smoke oil to be contaminated on other objects. Especially during use, when traveling by plane and in an environment with temperature differences, the oil storage structure of existing products has a greater risk of oil leakage. Therefore, a one-way valve is used to close the smoke oil outlet. When in use, the smoke oil can flow out by opening the outlet of the one-way valve. When not in use, the one-way valve keeps the oil circuit sealed to prevent oil leakage. However, during use, the liquid in the oil chamber needs to flow in to replenish it, otherwise negative pressure will be generated to affect the oil output. At the same time, the breathable structure needs to be able to prevent liquid leakage and needs to be able to withstand negative pressure in order to solve the problem of smoke oil leakage in low temperature and low pressure environments. Especially during use, when traveling by plane and in an environment with temperature differences, the oil storage structure of existing products has a greater risk of oil leakage. Summary of the invention
[0003] The object of the present invention is to provide a liquid storage device, comprising: a shell, the shell having a vent; a breathable and water-tight membrane, arranged facing the vent, the breathable and water-tight membrane divides the inner cavity of the shell into a liquid storage cavity and a valve cavity; a first movable part, arranged in the valve cavity, the first movable part can move toward the vent in the valve cavity until it blocks the vent.
[0004] Optionally, in the first pressure state: the external air pressure P1 of the shell is equal to the internal air pressure P2 of the shell, the force exerted by the external air pressure P1 on the first movable part is F1, the force exerted by the internal air pressure P2 on the first movable part is F2, and the gravity of the first movable part is M1, wherein M1+F1≥F2.
[0005] Optionally, in the second pressure state: the external air pressure P1 of the shell is less than the internal air pressure P2 of the shell, the force exerted by the external air pressure P1 on the first movable part is F1, the force exerted by the internal air pressure P2 on the first movable part is F2, and the gravity of the first movable part is M1, wherein M1+F1<F2.
[0006] Optionally, the first movable member is spherical.
[0007] Optionally, the first movable member is in one of an ellipsoidal, columnar, pyramidal, and irregular shape.
[0008] Optionally, the first movable member is in elastic contact with the vent.
[0009] Optionally, the first movable member is made of elastic material.
[0010] Optionally, it also includes: a connecting piece, which is arranged in the valve cavity, and the outer peripheral surface of the connecting piece is sealed and connected to the cavity wall of the valve cavity; the connecting piece has an air permeable channel, and the air permeable channel is respectively connected to the vent and the valve cavity, and the first movable piece is located between the connecting piece and the breathable and waterproof membrane; the first movable piece can move toward the connecting piece to block the air permeable channel.
[0011] Optionally, when the first movable member moves toward the connecting member to block the air permeable passage, the first movable member is in elastic contact with the connecting member.
[0012] Optionally, the connecting piece is made of elastic material.
[0013] Optionally, the connecting member has a concave surface at one end facing the breathable and waterproof membrane, and the concave surface is used to guide the first movable member to move toward the connecting member to block the breathable passage.
[0014] Optionally, the air-permeable and water-impermeable membrane is sealed to the inner wall of the shell via a seal.
[0015] Optionally, it comprises: a cover body, the cover body having the vent, the cover body being connected to the shell and arranged facing the air-permeable and water-impermeable membrane.
[0016] Optionally, the cover body applies a force to the sealing member along a direction from the vent to the air-permeable and water-impermeable membrane.
[0017] Optionally, the housing has a liquid outlet and a second movable member, and the second movable member can move along the extension direction of the liquid outlet under the action of an external force, so that the liquid outlet is opened or closed.
[0018] The present invention further provides an aerosol generating device, comprising: any one of the liquid storage devices described above.
[0019] As described above, the present invention provides a liquid storage device, comprising: a shell, in which an air-permeable and water-impermeable membrane is provided in the inner cavity of the shell, the air-permeable and water-impermeable membrane is arranged facing the air vent of the shell, and the air-permeable and water-impermeable membrane divides the inner cavity of the shell into a liquid storage cavity and a valve cavity; wherein, a first movable part is provided in the valve cavity, and the first movable part can move toward the air vent in the valve cavity to block the air vent, thereby reducing the risk of liquid smoke in the liquid storage cavity leaking from the air vent.
[0020] In order to make the above contents of the present invention more clearly understood, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 is a side view of a liquid storage device according to an embodiment of the present invention;
[0022] Figure 2 is a cross-sectional view of a liquid storage device according to an embodiment of the present invention Figure 1 ;
[0023] Figure 3 is a cross-sectional view of a liquid storage device according to an embodiment of the present invention Figure 2 ;
[0024] Figure 4 It is a schematic diagram of the force of the first movable member in the liquid storage device according to the embodiment of the present invention. DETAILED DESCRIPTION
[0025] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.
[0026] refer to Figures 1 to 3 The present invention provides a liquid storage device 1, comprising: a shell 10, an air-permeable and water-impermeable membrane 20 is provided in the inner cavity of the shell 10, the air-permeable and water-impermeable membrane 20 is arranged facing the vent 11 of the shell 10, and the air-permeable and water-impermeable membrane 20 divides the inner cavity of the shell 10 into a liquid storage cavity 13 and a valve cavity 12; wherein, a first movable member 30 is provided in the valve cavity 12, and the first movable member 30 can move toward the vent 11 in the valve cavity 12 to block the vent 11, thereby reducing the risk of the smoke liquid in the liquid storage cavity 13 leaking from the vent 11.
[0027] The air-permeable and water-impermeable membrane 20 can prevent liquid from penetrating from one side of the membrane to the other side while maintaining the free bidirectional permeability of gas. That is, it prevents liquid from penetrating from the liquid storage chamber 13 to the valve chamber 12. The air-permeable and water-impermeable membrane 20 is composed of two or more layers of composite materials and can be made of polymer film materials such as PTFE and ePTFE. In this embodiment, the thickness of the air-permeable and water-impermeable membrane 20 does not exceed 5 mm.
[0028] Specifically, in the first pressure state (for example, in the normal pressure state), the external air pressure P1 of the housing 10 is equal to the internal air pressure P2 of the housing 10; that is, the air pressure of the external environment of the liquid storage device 1 is P1, and the air pressure of the inner cavity of the liquid storage device 1 is P2. Figure 4 As shown, in the first pressure state, the force of the external air pressure P1 on the first movable part 30 is F1, the force of the internal air pressure P2 on the first movable part 30 is F2, and the gravity of the first movable part 30 is M1, wherein M1+F1≥F2.
[0029] The first movable member 30 is in a free state in the valve cavity 12 under the action of gravity, and the first movable member 30 will not block the vent 11, and the vent 11 is in a normally open state. The vent 11 can keep the internal air pressure of the inner cavity of the housing 10 equal to the external air pressure, and the liquid in the liquid storage cavity 13 can flow out normally without being affected by negative pressure.
[0030] Under the second pressure state (for example, when traveling on a high-altitude airplane, in low temperature or other environmental conditions): the external air pressure P1 of the outer shell 10 is less than the internal air pressure P2 of the outer shell 10, the force exerted by the external air pressure P1 on the first movable part 30 is F1, the force exerted by the internal air pressure P2 on the first movable part 30 is F2, and the gravity of the first movable part 30 is M1, wherein M1+F1<F2.
[0031] At this time, the first movable member 30 moves toward the vent 11 in the valve cavity 12 under the action of air pressure until it blocks the vent 11 ( Figure 3 The direction B in the middle shows the movement direction of the first movable member 30), which produces a compression and sealing effect on the vent 11. The internal air pressure will remain balanced in this state, and the internal air pressure will remain stable while sealing the vent 11. The air pressure on the internal liquid will not continue to rise, which limits the continuous expansion of the gas in the liquid storage chamber 13 and reduces the risk of the expanded gas squeezing the liquid out of the liquid storage device 1.
[0032] After the liquid storage device 1 of the present invention is used for a period of time, the liquid in the liquid storage chamber 13 will decrease, and the liquid level of the liquid storage chamber 13 will drop to form a cavity, which is located between the air-permeable and water-impermeable membrane 20 and the liquid level of the liquid storage chamber 13. In the second pressure state, the valve chamber 12 and the gas in the cavity continue to expand, and the first movable member 30 moves toward the vent 11 in the valve chamber 12 to block the vent 11; even if the sealing connection between the air-permeable and water-impermeable membrane 20 and the inner wall of the housing 10 is affected, after a gap is generated, the liquid in the liquid storage chamber 13 will flow out from the gap, and since the vent 11 is blocked, the risk of the liquid being squeezed out of the liquid storage device 1 is reduced.
[0033] The shape of the first movable member 30 of the present invention is not limited, as long as it can block the vent 11. Figure 2 and Figure 3In this embodiment, the first movable part 30 is spherical. In other embodiments, the first movable part 30 is in one of the shapes of an ellipsoid, a column, a cone, and an irregular shape. The spherical first movable part 30 uses an airtight and watertight material, such as: ceramics, glass, metal, plastic, silica gel, wood, polymer materials, etc. The diameter of the spherical first movable part 30 is not less than 0.2mm and not more than 10mm, the minimum size of the irregular shape is not less than 0.2mm, and the maximum size is not more than 10mm; such a setting allows the first movable part 30 to block the vent 11.
[0034] In addition, in the present embodiment, the first movable part 30 is in elastic contact with the vent 11. In this way, the sealing effect can be maintained under pressure, further reducing the risk of liquid leaking out of the vent 11. Among them, the first movable part 30 is made of elastic material. At least the part of the first movable part 30 that is in contact with the vent 11 is made of elastic material, such as silicone material. The spherical first movable part 30 is a sphere with an elastic outer surface that is air- and liquid-impermeable, made of a single material or a composite of multiple materials, with a silicone thickness of not less than 10% of the radius of the sphere from the outer surface toward the center of the sphere.
[0035] In other embodiments, an elastic member may be provided at the end of the vent hole, so that the first movable member can also be in elastic contact with the vent hole.
[0036] In addition, continue to refer to Figure 2 In this embodiment, the liquid storage device 1 further includes: a connecting member 40, the connecting member 40 is arranged in the valve cavity 12, and the outer peripheral surface of the connecting member 40 is sealed and connected to the cavity wall of the valve cavity 12; wherein the connecting member 40 has a vent channel 42, and the vent channel 42 is respectively connected to the vent 11 and the valve cavity 12, and the first movable member 30 is located between the connecting member 40 and the air-permeable and water-impermeable membrane 20. In this embodiment, the vent channel 42 is arranged along the extension direction ( Figure 2 In the second pressure state, the first movable member 30 can move toward the connected member 40 to block the air passage 42, and then block the air vent 11.
[0037] In this embodiment, when the first movable member 30 moves toward the connecting member 40 to block the air passage 42, the first movable member 30 is in elastic contact with the connecting member 40. For example, the first movable member 30 is made of elastic material as described in the above embodiment; or, the connecting member 40 is made of elastic material, such as silicone material; or, both the first movable member 30 and the connecting member 40 are made of elastic material.
[0038] Further, refer to Figure 2 In this embodiment, the end of the connector 40 facing the air-permeable and water-impermeable membrane 20 has a concave surface 41, combined with Figure 3As shown, the concave surface 41 is used to guide the first movable member 30 to move toward the connecting member 40 to block the air permeable passage 42. Under the second pressure state, the first movable member 30 moves toward the connecting member 40 in the valve cavity 12. Due to the presence of the concave surface 41, the first movable member 30 can stably and quickly move into the concave surface 41 to block the air permeable passage 42. The first movable member 30 and the connecting member 40 are in elastic contact, and the sealing effect is maintained under pressure.
[0039] Continue to refer Figure 2 The air-permeable and water-impermeable membrane 20 is sealed and connected to the inner wall of the housing 10 through the sealing member 21. The connection form between the sealing member 21 and the inner wall of the housing 10 is not limited, and can be packaging, gluing, welding, etc., as long as a sealed connection can be achieved. In this embodiment, the sealing member 21 is a sealing rubber ring, which extends along the circumference of the inner wall of the housing 10.
[0040] In addition, the liquid storage device 1 of the present invention further comprises: a cover 50, the cover 50 having the vent 11 of the above embodiment, the cover 50 being connected to the housing 10 and arranged facing the air-permeable and water-impermeable membrane 20. In this embodiment, the cover 50 has an external thread, the inner wall of the housing 10 has an internal thread, and the cover 50 and the housing 10 are threadedly connected. Further, the cover 50 applies a force to the seal 21 along the direction from the vent 11 to the air-permeable and water-impermeable membrane 20. In this way, the sealing between the cover 50 and the housing 10 can be improved while the seal 21 is compressed.
[0041] refer to Figure 1 and Figure 2 The housing 10 of the liquid storage device 1 of the present invention has a liquid outlet 60 and a second movable member 61. The liquid in the liquid storage chamber 13 can flow out through the liquid outlet 60. The second movable member 61 can flow out along the extension direction of the liquid outlet 60 under the action of external force ( Figure 2 The second movable member 61 moves in the X direction to open or close the liquid outlet 60. The specific structure of the second movable member 61 can be referred to the Chinese patent application (CN201810894138.9), which will not be described in detail in this application.
[0042] The present invention further provides an aerosol generating device, comprising the liquid storage device 1 described in any one of the above embodiments.
[0043] In summary, the above embodiments provided by the present invention are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.
Claims
1. A liquid storage device, characterized in that: include: a housing having a vent; A breathable and water-impermeable membrane is arranged facing the vent, and the breathable and water-impermeable membrane divides the inner cavity of the shell into a liquid storage cavity and a valve cavity; A first movable member is disposed in the valve cavity, and the first movable member can move toward the vent in the valve cavity to block the vent; In the first pressure state: the external air pressure P1 of the housing is equal to the internal air pressure P2 of the housing, the force of the external air pressure P1 on the first movable part is F1, the force of the internal air pressure P2 on the first movable part is F2, the gravity of the first movable part is M1, wherein M1+F1≥F2; In the second pressure state: the external air pressure P1 of the shell is less than the internal air pressure P2 of the shell, the force exerted by the external air pressure P1 on the first movable part is F1, the force exerted by the internal air pressure P2 on the first movable part is F2, and the gravity of the first movable part is M1, wherein M1+F1<F2.
2. The liquid storage device according to claim 1, characterized in that The first movable member is spherical.
3. The liquid storage device according to claim 1, characterized in that The first movable member is in one of an ellipsoidal shape, a columnar shape, a cone shape, and an irregular shape.
4. The liquid storage device according to claim 1, characterized in that: The first movable member is in elastic contact with the vent.
5. The liquid storage device according to claim 4, characterized in that: The first movable member is made of elastic material.
6. The liquid storage device according to claim 1, characterized in that: Also includes: A connecting piece is arranged in the valve cavity, and the outer peripheral surface of the connecting piece is sealedly connected to the cavity wall of the valve cavity; The connecting member has an air permeable passage, the air permeable passage is communicated with the air vent and the valve cavity respectively, and the first movable member is located between the connecting member and the air-permeable and water-impermeable membrane; The first movable member can move toward the connecting member to block the air permeable passage.
7. The liquid storage device according to claim 6, characterized in that: When the first movable member moves toward the connecting member to block the air permeable passage, the first movable member is in elastic contact with the connecting member.
8. The liquid storage device according to claim 7, characterized in that: The connecting piece is made of elastic material.
9. The liquid storage device according to claim 6, characterized in that: The connecting member has a concave surface at one end facing the air-permeable and water-impermeable membrane, and the concave surface is used to guide the first movable member to move toward the connecting member to block the air-permeable channel.
10. The liquid storage device according to claim 1, characterized in that: The air-permeable and water-impermeable membrane is sealed and connected to the inner wall of the shell through a sealing member.
11. The liquid storage device according to claim 10, characterized in that: The invention comprises a cover body, wherein the cover body has the vent, the cover body is connected to the shell, and is arranged facing the air-permeable and water-impermeable membrane.
12. The liquid storage device according to claim 11, characterized in that: The cover body applies a force to the sealing member along a direction from the vent to the air-permeable and water-impermeable membrane.
13. The liquid storage device according to claim 1, characterized in that: The housing has a liquid outlet and a second movable member, and the second movable member can move along the extension direction of the liquid outlet under the action of an external force, so that the liquid outlet is opened or closed.
14. An aerosol generating device, characterized in that: include: The liquid storage device according to any one of claims 1 to 13.