ATOMIZER AND AEROSOL GENERATING DEVICE
An atomizer and an aerosol generating device are provided. The atomizer includes a liquid storage member with a liquid storage cavity formed therein for storing an aerosol-forming substrate; and an atomizing housing at least partially received in the liquid storage cavity. A liquid storage space is formed inside the atomizing housing. The atomizing housing is provided with an air guiding hole configured for communicating an upper portion of the liquid storage space with an outside atmosphere. The atomizing housing is further provided with a pressure relief hole communicating the liquid storage space with the liquid storage cavity. When an air pressure in the liquid storage cavity is greater than an external air pressure and a positive pressure difference is formed, the aerosol-forming substrate in the liquid storage cavity is squeezed by the positive pressure difference into the liquid storage space through the pressure relief hole.
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The present application is a continuation-in-part of International Patent Application No. PCT/CN2022/107953, filed on Jul. 26, 2022, which claims priority to Chinese Patent Application No. 202121770507.7, filed on Jul. 30, 2021. All of the aforementioned patent applications are hereby incorporated by reference in their entireties.
TECHNICAL FIELDThe present application relates to the technical field of simulated smoking, in particular to an atomizer and an aerosol generating device.
BACKGROUNDThe aerosol generating device is a relatively common electronic product that simulates cigarettes. It mainly includes a power supply device and an atomizer. The power supply device supplies power to the heating unit in the atomizer, so that the atomizer heats the aerosol-forming substrate and produces smoke under electric driving for users to inhale, to achieve the effect of simulating smoking.
Currently, when the surrounding environment of the atomizer changes (such as changes in the surrounding atmospheric pressure during air transportation of the atomizer), a certain pressure difference can occur between the internal air pressure of the atomizer and the external air pressure. When the internal air pressure of the atomizer is greater than the external air pressure, under the pressure difference between the internal air pressure of the atomizer and the external air pressure, the aerosol-forming substrate in the liquid storage cavity of the atomizer will be squeezed into the atomizing cavity, so that the internal air pressure of the atomizer and the external air pressure reach a balanced state. During this process, the aerosol-forming substrate squeezed into the atomizing cavity by the pressure difference easily leaks out from the smoke outlet or air inlet of the atomizer. As a result, the atomizer leaks, seriously affecting the transportation and use of the atomizer.
SUMMARYBased on the above-mentioned problems existing in the prior art, a first object of the embodiment of the present application is to provide an atomizer, such that when there is a pressure difference between the internal air pressure and the external air pressure, the aerosol-forming substrate in the liquid storage cavity can be prevented from being squeezed into the atomizing cavity by the pressure difference, so as to achieve the effect of preventing liquid leakage.
In order to achieve the above purpose, the technical solution adopted by the present application is to provide an atomizer for an aerosol generating device, including:
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- a liquid storage member with a liquid storage cavity formed therein for storing an aerosol-forming substrate; and
- an atomizing housing at least partially received in the liquid storage cavity;
- wherein a liquid storage space is formed inside the atomizing housing, the atomizing housing is provided with an air guiding hole configured for communicating an upper portion of the liquid storage space with an outside atmosphere, and the atomizing housing is further provided with a pressure relief hole communicating the liquid storage space with the liquid storage cavity; when an air pressure in the liquid storage cavity is greater than an external air pressure and a positive pressure difference is formed, the aerosol-forming substrate in the liquid storage cavity is squeezed by the positive pressure difference into the liquid storage space through the pressure relief hole.
Further, the atomizing housing includes a base and an upper cover, an upper end face of the base is recessed to form an atomizing groove, the upper cover covers a groove opening of the atomizing groove, so that an atomizing cavity is formed inside the base, an inner bottom surface of the atomizing groove is recessed to form a liquid storage groove, and the liquid storage groove constitutes the liquid storage space, the pressure relief hole and the air guiding hole are both provided on the base.
Further, a protrusion is formed and protrudes on an inner bottom surface of the liquid storage groove, the portion of the liquid storage groove other than the protrusion defines the liquid storage space, an air guiding passage is provided in the protrusion, an air inlet end of the air guiding passage is in communication with the air guiding hole, an air outlet end of the air guiding passage is located at an upper end face of the protrusion, and the air outlet end of the air guiding passage is in communication with the liquid storage space.
Further, the atomizer further includes a first sealing member provided in the liquid storage groove, the first sealing member includes a sealing seat covering a bottom of the liquid storage groove and a protrusion protruding from a surface of the sealing seat facing the upper cover, the portion of the liquid storage groove other than the sealing seat and the protrusion defines the liquid storage space, an air guiding passage is provided in the first sealing member, an air inlet end of the air guiding passage is located at the sealing seat, and the air inlet end of the air guiding passage is in communication with the air guiding hole, an air outlet end of the air guiding passage is located at an upper end face of the protrusion, and the air outlet end of the air guiding passage is in communication with the liquid storage space.
Further, the atomizing housing further includes a heating member for heating the aerosol-forming substrate, the sealing seat is provided with a through hole for a lead wire of the heating member to pass through, the heating member is located in the atomizing cavity, the lead wire of the heating member passes through the through hole and extends to an outside of the liquid storage groove.
Further, an outer wall of the base is provided with an annular groove around a circumference of the base, the pressure relief hole is located in the annular groove, a second sealing member is disposed in the annular groove, the second sealing member is configured to seal the pressure relief hole when the air pressure in the liquid storage cavity is equal to the external air pressure; when the air pressure in the liquid storage cavity is greater than the external air pressure and a positive pressure difference is formed, or when the air pressure in the liquid storage cavity is less than the external air pressure and a negative pressure difference is formed, the second sealing member is squeezed by the positive pressure difference or the negative pressure difference to open the pressure relief hole.
Further, a gap is preset between a surface of the second sealing member facing the upper cover and an inner surface of the annular groove facing the base.
Further, a spacing of the gap is 0.03 mm-0.05 mm.
Further, the liquid storage member is provided with an open bottom end and a smoke outlet at a top end, the atomizing housing is sealed and assembled on a bottom opening of the liquid storage member, the atomizing housing is at least partially received in the liquid storage member, an atomizing cavity is formed inside the atomizing housing, the atomizing housing is provided with a smoke guiding hole in communication with the atomizing cavity, a vent tube communicating the smoke guiding hole with the smoke outlet is provided in the liquid storage member, an inside space of the liquid storage member other than the atomizing housing and the vent tube defines the liquid storage cavity, the atomizing housing is provided with a liquid inlet hole communicating the liquid storage cavity with the atomizing cavity.
Based on the above-mentioned problems existing in the prior art, a second object of the embodiment of the present application is to provide an aerosol generating device with the atomizer provided by any of the above solutions, such that when there is a pressure difference between the air pressure in the atomizer and the external air pressure, the aerosol-forming substrate in the liquid storage cavity can be prevented from being squeezed into the atomizing cavity by the pressure difference, so as to achieve the effect of preventing liquid leakage.
In order to achieve the above object, the technical solution adopted by the present application is to provide an aerosol generating device, including the atomizer and a power supply device for supplying power to the atomizer, the atomizer is assembled to the power supply device.
Compared with the prior art, the above one or more technical solutions in the embodiment of the present application have at least one of the following beneficial effects:
The embodiment of the present application provides an atomizer and an aerosol generating device. The atomizing housing of the atomizer is at least partially received in the liquid storage cavity, a liquid storage space is formed inside the atomizing housing, and the atomizing housing is provided with a pressure relief hole communicating the liquid storage space with the liquid storage cavity and an air guiding hole communicating the upper portion of the liquid storage space with the outside atmosphere. In this way, when the air pressure in the liquid storage cavity is greater than the external air pressure and a positive pressure difference is formed, the positive pressure difference squeezes the aerosol-forming substrate in the liquid storage cavity into the liquid storage space through the pressure relief hole, so that the internal air pressure of the atomizer and the external air pressure reach a balanced state. When the air pressure in the liquid storage cavity is greater than the external air pressure and a negative pressure difference is formed, the negative pressure difference reversely squeezes the aerosol-forming substrate in the liquid storage space back into the liquid storage cavity through the pressure relief hole, so that the internal air pressure of the atomizer and the external air pressure reach a balanced state. During this process, the aerosol-forming substrate squeezed into the liquid storage space by the positive pressure difference is only temporarily stored in the liquid storage space, and finally will be reversely squeezed by the negative pressure difference and flow back into the liquid storage cavity. Thus, the problem of the aerosol-forming substrate flowing into the atomizing cavity does not occur, thereby avoiding leakage of the aerosol-forming substrate, and effectively preventing leakage of the atomizer.
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used below for the description of the embodiments will be introduced briefly. It should be understood that the following drawings only illustrate some embodiments of the present application, and therefore should not be considered as limitation to the protection scope. A person skilled in the art may further obtain other relevant drawings according to these drawings without creative work.
The reference signs in the figures are as follows:
In order to make the technical problems to be solved, technical solutions, and beneficial effects of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only configured to explain the present application and are not intended to limit the present application.
It should be noted that when an element is referred to as being “connected to” or “provided on” another element, it can be directly on another element or indirectly on the another element. When an element is referred to as being “connected to” another element, it can be directly connected to the another element or indirectly connected to the another element.
In the description of the present application, it should be noted that, unless otherwise explicitly stipulated and limited, the terms “installed”, “fixed” and “connected” should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate element, or it can be the internal connection between two elements or the interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
It should be understood that the orientation or positional relationship indicated by the terms “length”, “width”, “top”, “bottom”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation; therefore, it cannot be understood as a limitation of the present application.
Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases “in one embodiment,” “in some embodiments,” or “in some of these embodiments” appear in various places throughout this specification, and are not all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.
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Compared with the prior art, the atomizer provided in the embodiment of the present application forms a liquid storage cavity 53 inside the liquid storage member 5, the atomizing housing 1 is at least partially received in the liquid storage cavity 53, a liquid storage space is formed inside the atomizing housing 1, and the atomizing housing 1 is provided with a pressure relief hole 114 communicating the liquid storage space with the liquid storage cavity 53 and an air guiding hole 117 communicating the upper portion of the liquid storage space with the outside atmosphere. In this way, when the surrounding environment of the atomizer changes, and when the air pressure in the liquid storage cavity 53 is greater than the external air pressure and a positive pressure difference is formed, the positive pressure difference squeezes the aerosol-forming substrate in the liquid storage cavity 53 into the liquid storage space through the pressure relief hole 114, so that the internal air pressure of the atomizer and the external air pressure reach a balanced state. When the surrounding environment of the atomizer returns to normal, and when the air pressure in the liquid storage cavity 53 is less than the external air pressure and a negative pressure difference is formed, the negative pressure difference reversely squeezes the aerosol-forming substrate in the liquid storage space back into the liquid storage cavity 53 through the pressure relief hole 114, so that the internal air pressure of the atomizer and the external air pressure reach a balanced state. During this process, the aerosol-forming substrate squeezed into the liquid storage space by the positive pressure difference is only temporarily stored in the liquid storage space, and finally will be squeezed back into the liquid storage cavity 53 by the negative pressure difference, the aerosol-forming substrate is prevented from flowing into the atomizing cavity 112, which can prevent the aerosol-forming substrate from leaking out, thus effectively preventing leakage from the atomizer.
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In some embodiments, when the air pressure in the liquid storage cavity 53 is greater than the external air pressure and a positive pressure difference is formed, the positive pressure difference squeezes the second sealing member 6 in the direction away from the upper cover 12, so that a channel (not shown) configured for the aerosol-forming substrate in the liquid storage cavity 53 to flow towards the pressure relief hole 114 is formed between the second sealing member 6 and the base 11. By adopting the above solution, when the air pressure in the liquid storage cavity 53 is greater than the external air pressure and a positive pressure difference is formed, the positive pressure difference squeezes the aerosol-forming substrate in the liquid storage cavity 53, and the aerosol-forming substrate transmits pressure to the second sealing member 6, causing the second sealing member 6 to shrink and deform slightly so as to remove the sealing effect on the pressure relief hole 114, and meanwhile the positive pressure difference squeezes the second sealing member 6 in the direction away from the upper cover 12, so that a channel is formed between the second sealing member 6 and the base 11, and the channel allows the aerosol-forming substrate in the liquid storage cavity 53 to flow towards the pressure relief hole 114, which is beneficial for the aerosol-forming substrate to flow out through the pressure relief hole 114, thus ensuring the stability and reliability of the pressure relief. Please refer to
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An embodiment of the present application further provides an aerosol generating device, and the aerosol generating device includes an atomizer and a power supply device (not shown). The atomizer is detachably assembled to the power supply device through magnetic members 20 such as magnets, and the atomizer is electrically connected to the power supply device through a conductive assembly 10, so that when the atomizer is working, the power supply device supplies power to the atomizer. Specifically, the atomizer is an atomizer provided in any of the above embodiments. Since the aerosol generating device has all the technical features of the atomizer provided in any of the above embodiments, it has the same technical effects as the above atomizer.
The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An atomizer for an aerosol generating device, the atomizer comprising:
- a liquid storage member with a liquid storage cavity formed therein for storing an aerosol-forming substrate; and
- an atomizing housing at least partially received in the liquid storage cavity;
- wherein a liquid storage space is formed inside the atomizing housing, the atomizing housing is provided with an air guiding hole configured for communicating an upper portion of the liquid storage space with an outside atmosphere, and the atomizing housing is further provided with a pressure relief hole communicating the liquid storage space with the liquid storage cavity; when an air pressure in the liquid storage cavity is greater than an external air pressure and a positive pressure difference is formed, the aerosol-forming substrate in the liquid storage cavity is squeezed by the positive pressure difference into the liquid storage space through the pressure relief hole.
2. The atomizer according to claim 1, wherein when the air pressure in the liquid storage cavity is less than the external air pressure and a negative pressure difference is formed, the aerosol-forming substrate in the liquid storage space is squeezed by the negative pressure difference back into the liquid storage cavity through the pressure relief hole.
3. The atomizer according to claim 1, wherein the atomizing housing comprises a base and an upper cover, an upper end face of the base is recessed to form an atomizing groove, the upper cover covers a groove opening of the atomizing groove, so that an atomizing cavity is formed inside the base, an inner bottom surface of the atomizing groove is recessed to form a liquid storage groove, and the liquid storage groove constitutes the liquid storage space, the pressure relief hole and the air guiding hole are both provided on the base.
4. The atomizer according to claim 3, wherein a protrusion is formed and protrudes on an inner bottom surface of the liquid storage groove, the portion of the liquid storage groove other than the protrusion defines the liquid storage space, an air guiding passage is provided in the protrusion, an air inlet end of the air guiding passage is in communication with the air guiding hole, an air outlet end of the air guiding passage is located at an upper end face of the protrusion, and the air outlet end of the air guiding passage is in communication with the liquid storage space.
5. The atomizer according to claim 3, wherein the atomizer further comprises a first sealing member provided in the liquid storage groove, the first sealing member comprises a sealing seat covering a bottom of the liquid storage groove and a protrusion protruding from a surface of the sealing seat facing the upper cover, the portion of the liquid storage groove other than the sealing seat and the protrusion defines the liquid storage space, an air guiding passage is provided in the first sealing member, an air inlet end of the air guiding passage is located at the sealing seat, and the air inlet end of the air guiding passage is in communication with the air guiding hole, an air outlet end of the air guiding passage is located at an upper end face of the protrusion, and the air outlet end of the air guiding passage is in communication with the liquid storage space.
6. The atomizer according to claim 5, wherein the atomizing housing further comprises a heating member for heating the aerosol-forming substrate, the sealing seat is provided with a through hole for a lead wire of the heating member to pass through, the heating member is located in the atomizing cavity, the lead wire of the heating member passes through the through hole and extends to an outside of the liquid storage groove.
7. The atomizer according to claim 4, wherein a height of the protrusion is greater than or equal to a height of the pressure relief hole.
8. The atomizer according to claim 5, wherein a height of the protrusion is greater than or equal to a height of the pressure relief hole.
9. The atomizer according to claim 4, wherein the base is provided with a liquid holding groove, a height of a groove opening of the liquid holding groove is lower than a height of the air guiding hole, and the liquid holding groove is located under the air inlet end of the air guiding passage.
10. The atomizer according to claim 5, wherein the base is provided with a liquid holding groove, a height of a groove opening of the liquid holding groove is lower than a height of the air guiding hole, and the liquid holding groove is located under the air inlet end of the air guiding passage.
11. The atomizer according to claim 3, wherein an outer wall of the base is provided with an annular groove around a circumference of the base, the pressure relief hole is located in the annular groove, a second sealing member is disposed in the annular groove, the second sealing member is configured to seal the pressure relief hole when the air pressure in the liquid storage cavity is equal to the external air pressure; when the air pressure in the liquid storage cavity is greater than the external air pressure and a positive pressure difference is formed, or when the air pressure in the liquid storage cavity is less than the external air pressure and a negative pressure difference is formed, the second sealing member is squeezed by the positive pressure difference or the negative pressure difference to open the pressure relief hole.
12. The atomizer according to claim 11, wherein a gap is preset between a surface of the second sealing member facing the upper cover and an inner surface of the annular groove facing the base.
13. The atomizer according to claim 12, wherein a spacing of the gap is 0.03 mm-0.05 mm.
14. The atomizer according to claim 3, wherein an atomizing assembly is provided in the atomizing cavity, the base and/or the upper cover is provided with a liquid inlet hole communicating the liquid storage cavity with the atomizing cavity, the aerosol-forming substrate in the liquid storage cavity flows into the atomizing cavity through the liquid inlet hole to be heated and atomized by the atomizing assembly received in the atomizing cavity.
15. The atomizer according to claim 1, wherein the liquid storage member is provided with an open bottom end and a smoke outlet at a top end, the atomizing housing is sealed and assembled on a bottom opening of the liquid storage member, the atomizing housing is at least partially received in the liquid storage member, an atomizing cavity is formed inside the atomizing housing, the atomizing housing is provided with a smoke guiding hole in communication with the atomizing cavity, a vent tube communicating the smoke guiding hole with the smoke outlet is provided in the liquid storage member, an inside space of the liquid storage member other than the atomizing housing and the vent tube defines the liquid storage cavity, the atomizing housing is provided with a liquid inlet hole communicating the liquid storage cavity with the atomizing cavity.
16. An aerosol generating device, comprising an atomizer and a power supply device for supplying power to the atomizer, the atomizer being assembled to the power supply device, wherein the atomizer is the atomizer according to claim 1.
Type: Application
Filed: Jan 30, 2024
Publication Date: May 23, 2024
Applicant: CHANGZHOU PATENT ELECTRONIC TECHNOLOGY CO., LTD (Changzhou)
Inventor: Weihua QIU (Changzhou)
Application Number: 18/426,379