Power supply assembly and electronic atomization device

Abstract

The utility model discloses a power supply assembly and an electronic atomization device, the power supply assembly is used for providing electric energy for an atomizer, and the power supply assembly comprises a shell; the support is arranged in the shell, a containing cavity is defined by the support and the shell, and the containing cavity is used for containing at least one part of the atomizer; a first air guide column communicated with the accommodating chamber is arranged on the bracket; the circuit board is provided with an airflow sensor; the first sealing piece is elastically connected between the support and the circuit board in an abutting mode, a trigger cavity is defined between the first sealing piece and the circuit board, the first air guide column is in fluid communication with the trigger cavity, one side of the airflow sensor is communicated with the trigger cavity, and the other side of the airflow sensor is communicated with external air; the trigger chamber is used for transmitting suction negative pressure provided by the first air guide column to the airflow sensor. In this way, the two sides of the airflow sensor can be sealed and isolated conveniently.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of atomization, in particular to a power assembly and an electronic atomization device.

BACKGROUND

[0002] Traditional tobacco products (e.g., cigarettes, cigars, etc.) burn tobacco during use to produce tobacco smoke, and the prior art has existed to replace these traditional tobacco products with products that release compounds by heating, but not burning. An example of such products is an electronic atomization device, which generally comprises a power assembly and an atomizer, the power assembly being used to provide power to the atomizer, and the atomizer being used to store and atomize a liquid substrate that can contain nicotine and / or flavorants and / or aerosol generating substances (e.g., glycerol) to produce an inhalable vapor or aerosol.

[0003] The power assembly is generally provided with a controller and an airflow sensor, the airflow sensor being used to sense the negative pressure generated when a user inhales, so as to cause the airflow sensor to generate a trigger signal, which is sent to the controller, and then the controller controls the power assembly to provide power to the atomizer, so that the atomizer starts to work to atomize the liquid substrate.

[0004] The airflow sensor generally needs to be sealed on both sides during use, so that the air pressure difference can be generated on both sides when a user inhales, and then the above-mentioned electrical signal is generated under the action of the air pressure difference, and the existing sealing structure is relatively complex, which leads to inconvenient production and assembly.

INVENTION CONTENTS

[0005] The present application provides a power assembly and an electronic atomization device to solve the technical problem of the complex sealing structure of the airflow sensor in the existing power assembly.

[0006] At least one embodiment of the present application provides a power assembly for providing power to an atomizer, the atomizer being used to atomize a liquid substrate to produce an aerosol, the power assembly comprising:

[0007] a housing;

[0008] a support arranged in the housing, the support and the housing defining a receiving chamber, the receiving chamber being used to receive at least a part of the atomizer; and the support being provided with a first air guide column in communication with the receiving chamber;

[0009] a circuit board provided with an airflow sensor;

[0010] A first seal member elastically abuts between the bracket and the circuit board, a trigger chamber is defined between the first seal member and the circuit board, the first air guide column is in fluid communication with the trigger chamber, one side of the airflow sensor is in communication with the trigger chamber, and the other side is in communication with external air, and the trigger chamber is used to transmit the suction negative pressure provided through the first air guide column to the airflow sensor.

[0011] In one of the embodiments, the first seal member is provided with a first through hole, the first air guide column extends through the first through hole into the trigger chamber, and the first air guide column is in interference fit with the first through hole.

[0012] In one of the embodiments, the circuit board comprises a first surface and a second surface arranged oppositely, the first surface faces the first seal member, and the airflow sensor is mounted on the second surface.

[0013] In one of the embodiments, the first air guide column has a first air outlet facing the accommodation chamber, and a side wall of the first air guide column is provided with a first notch extending to the first air outlet.

[0014] In one of the embodiments, the bracket is further provided with a second air guide column extending side by side with the first air guide column, the power supply assembly further comprises a first air inlet hole for external air to enter, and the second air guide column communicates the first air inlet hole and the accommodation chamber.

[0015] In one of the embodiments, the circuit board is provided with a second through hole for the second air guide column to pass through.

[0016] In one of the embodiments, the second air guide column has a second air outlet facing the accommodation chamber, and a side wall of the second air guide column is provided with a second notch extending to the second air outlet.

[0017] In one of the embodiments, the first air guide column has a first air outlet facing the accommodation chamber, and a side wall of the first air guide column is provided with a first notch extending to the first air outlet, the first notch is in fluid communication with the second notch and is arranged staggered.

[0018] In one of the embodiments, the bracket comprises a first surface facing the accommodation chamber, the first surface is formed with a groove for collecting condensate, the first air guide column protrudes from a bottom wall of the groove, and a spacing is maintained between the first notch and the bottom wall.

[0019] In one of the embodiments, the bracket is fixedly connected with the circuit board.

[0020] The electronic atomization device provided in at least one of the embodiments of the present application comprises:

[0021] The atomizer is provided with a liquid storage cavity for storing a liquid substrate and an atomization assembly for atomizing the liquid substrate to generate an aerosol;

[0022] The power supply assembly provided in the above embodiments has a receiving chamber for receiving at least a part of the atomizer;

[0023] The atomizer is provided with a second air inlet hole for external air to enter and an air outlet hole for the aerosol to escape from the atomizer, and when at least a part of the atomizer is received in the receiving chamber, the power supply assembly is electrically connected with the atomizer, and the second air inlet hole is in fluid communication with the first air guide column.

[0024] The power supply assembly provided in the above embodiments has a receiving chamber for receiving at least a part of the atomizer;

BRIEF DESCRIPTION OF DRAWINGS

[0025] One or more embodiments are illustrated by way of example in the accompanying drawings that are not intended to be limiting of the embodiments, in which like references numbers refer to like elements throughout the various drawings. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the embodiments.

[0026] Figure 1 The structure schematic diagram of the power supply assembly and the atomizer of the electronic atomization device provided in an embodiment of the present application in a separated state;

[0027] Figure 2 The structure schematic diagram of the power supply assembly and the atomizer of the electronic atomization device provided in an embodiment of the present application in a separated state; Figure 1 The cross-sectional schematic diagram of the power supply assembly and the atomizer in one direction when combined;

[0028] Figure 3 The cross-sectional schematic diagram of the power supply assembly and the atomizer in one direction when combined; Figure 2 The cross-sectional schematic diagram of the power supply assembly in one direction;

[0029] Figure 4 The cross-sectional schematic diagram of the power supply assembly and the atomizer in another direction when combined; Figure 2 The cross-sectional schematic diagram of the power supply assembly and the atomizer in another direction when combined;

[0030] Figure 5 The enlarged schematic diagram of the A part; Figure 3

[0031] ​Figure 6 for Figure 3 A three-dimensional schematic diagram of the central support in one direction;

[0032] Figure 7 for Figure 3 An exploded view of the power supply component;

[0033] Figure 8 for Figure 6 A three-dimensional schematic diagram of the central support in another direction;

[0034] Figure 9 for Figure 6 A three-dimensional diagram of the central support in another direction.

Detailed Implementation Methods

[0035] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" or "attached to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0037] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0038] In the embodiments of this application, "installation" includes fixing or restricting a component or device to a specific position or place by means of welding, screwing, snapping, bonding, etc. The component or device may remain stationary in the specific position or place or may move within a limited range. After the component or device is fixed or restricted to the specific position or place, it may or may not be disassembled. This application does not impose any restrictions.

[0039] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an ordered ranking such that the features so designated are necessarily intended to be important in the description of the technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0040] An electronic atomization device 100 is provided in an embodiment of the present application, as shown in the drawings. Figures 1-3 The electronic atomization device 100 includes a power supply assembly 10 and an atomizer 20, the power supply assembly 10 is used to provide power to the atomizer 20, and the atomizer 20 is used to store and atomize an atomizable liquid substrate to generate an aerosol. The power supply assembly 10 is provided with an electric core 11 and a circuit board 12, the circuit board 12 can be a main board of the electronic atomization device, and the main board is provided with a controller of the electronic atomization device. In addition, the power supply assembly 10 further includes a shell 13 and a bracket 14 arranged in the shell 13, the bracket 14 and the inner wall of the shell 13 define a receiving chamber 131, and the receiving chamber 131 is used to accommodate the atomizer 20.

[0041] The power supply assembly 10 further includes an electric connection terminal 15 electrically connected with the main board of the electronic atomization device, and the electric connection terminal 14 is exposed in the receiving chamber 131, so that when the atomizer 20 is accommodated in the receiving chamber 131, the power supply assembly 100 can provide power to the atomizer 200 through the electric connection terminal 50.

[0042] The atomizer 20 includes a main shell 21 having a first end and a second end arranged oppositely, the first end is connected with a suction nozzle 211, the suction nozzle 211 is provided with an air outlet hole 2111 for the aerosol to escape from the electronic atomization device 100, and the second end is open to install a base 22, at least a part of the base 22 extends into the shell 21 through the opening of the second end to provide support for the components in the shell 21.

[0043] The housing 21 is provided with a liquid storage cavity for storing the liquid substrate, and a liquid storage member 23 is filled in the liquid storage cavity. The liquid storage member 23 absorbs and holds the liquid substrate in the liquid storage cavity. The liquid storage member 23 is provided with a longitudinal through hole (not shown in the figure), and a gas guide tube 24 is arranged in the through hole. The gas guide tube 24 is provided with an atomization assembly, which includes a liquid guide member 25 and a heating element 26 combined with the liquid guide member 25. The tube wall of the gas guide tube 24 is provided with a notch (not shown in the figure), and a partial area of the liquid guide member 25 can extend out of the notch to contact the liquid storage member 23. The liquid substrate stored in the liquid storage member 23 can be transferred to the liquid guide member 25. The liquid guide member 25 further transfers the liquid substrate to the heating element 26. The heating element 26 heats and atomizes the liquid substrate to generate aerosol, and releases the aerosol in the gas guide tube 24. One end of the gas guide tube 24 is in communication with the air outlet hole 2111, and the aerosol released in the gas guide tube 24 can be further transmitted into the air outlet hole 2111 for the user to smoke.

[0044] The liquid storage member 23 and the liquid guide member 25 are both made of porous material, which can be any one of cotton fiber, non-woven fabric, glass fiber rope, porous ceramic or porous glass, so that the liquid storage member 23 and the liquid guide member 25 can absorb and transfer the liquid substrate through the internal voids or microporous structures. Correspondingly, the heating element 26 can be combined with the liquid guide member 25 by printing, deposition, sintering or physical assembly, or wound on the liquid guide member 25.

[0045] In other embodiments, the atomization assembly can also include an ultrasonic atomization element, which can be an atomization sheet. The atomization sheet can atomize the liquid substrate flowing thereon into aerosol by high-frequency vibration. The type of the atomization assembly is not limited in the present application, as long as the atomization assembly can atomize the liquid substrate into aerosol.

[0046] As shown in FIGS. Figure 2 and Figure 4 The base 22 is provided with a second air inlet hole 221 and an electrode hole. The second air inlet hole 221 is used to provide the flow of external air into the atomizer 20. The second air inlet hole 221 is in fluid communication with the gas guide tube 24. When the user inhales at the air outlet hole 2111, the external air enters the atomizer 20 through the second air inlet hole 221, and then further flows into the gas guide tube 24, carrying the aerosol released in the gas guide tube 24 and transmitting the aerosol into the air outlet hole 2111 together with the gas guide tube 24. The user can smoke the aerosol in the air outlet hole 2111.

[0047] An electrode post 222 is arranged in the electrode hole, the electrode post 222 is electrically connected with the heating element 26, and a portion of the electrode post 222 is exposed to the end face of the base 22, so that when the atomizer 20 is accommodated in the accommodation chamber 131 of the power assembly 10, the electrode post 222 of the atomizer 20 can be electrically connected with the electric connection terminal 15 in the accommodation chamber 131, and then the power assembly 10 provides the atomization assembly with the electric energy required for atomization.

[0048] As shown in Figure 3 and Figure 6 The power assembly 10 further comprises a first sealing member 16, the first sealing member 16 is elastically abutted between the support 14 and the circuit board 12, the first sealing member 16 can be any one of a flexible element such as silica gel, rubber or latex, and then the first sealing member 16 can provide sealing between the support 14 and the circuit board 12. The elastic abutment means that the first sealing member 16 is elastically deformed under the clamping force of the support 14 and the circuit board 12, and then the first sealing member 16 is abutted with the support 14 and the circuit board 12 respectively under the elastic restoring force, so that the first sealing member 16 can provide sealing between the support 14 and the circuit board 12 through the elastic abutment.

[0049] The support 14 is provided with a first air guide column 141, the first air guide column 141 is communicated to the accommodation chamber 131, when the atomizer 20 is accommodated in the accommodation chamber 131, the first air guide column 141 and the second air inlet hole 221 of the atomizer 20 are in fluid communication. One side of the circuit board 12 is provided with an air flow sensor 121, and a trigger chamber 161 is defined between the first sealing member 16 and the circuit board 12, the trigger chamber 161 is communicated with the first air guide column 141, one side of the air flow sensor 121 is communicated with the trigger chamber 161, and the other side is communicated with the external air, and since the first sealing member 16 is elastically abutted between the support 14 and the circuit board 12, the first sealing member 16 seals and isolates the two sides of the air flow sensor 121.

[0050] Then, when the atomizer 20 is accommodated in the accommodation chamber 131, the second air inlet hole 221 of the atomizer 20 is in fluid communication with the first air guide column 141, and then the trigger chamber 161 is in communication with the air outlet hole 2111, so that when the user sucks at the air outlet hole 2111, the trigger chamber 161 generates negative pressure, so that the air pressure difference is generated between the two sides of the air flow sensor 121, and the air flow sensor 121 is triggered to generate an electric signal under the action of the air pressure difference, the electric signal is sent to the controller of the main board, and then the controller controls the power core 11 to provide the atomization assembly with electric energy. That is, in this process, the trigger chamber 161 is used to transmit the suction negative pressure provided through the first air guide column 141 to the air flow sensor 121.

[0051] In the embodiment, the airflow sensor 121 is arranged on the circuit board 12, and then the first sealing member 16 is elastically abutted between the circuit board 12 and the support 14, and a trigger chamber 161 for triggering the airflow sensor 121 is defined between the circuit board 12 and the first sealing member 16. In this way, the two sides of the airflow sensor 121 can be conveniently sealed and isolated, and assembly is facilitated.

[0052] For example, in specific production assembly, the support 14 can be first mounted into the shell 13, then the first sealing member 16 is mounted on the support 14, and then the circuit board 12 and the support 14 are fixedly connected and fastened together through the screw 17. Under the fastening force, the first sealing member 16 is elastically abutted between the support 14 and the circuit board 12. It can be easily understood that the fixed connection mode of the circuit board 12 and the support 14 is not limited to the screw mode provided in the embodiment, and in some other embodiments, the circuit board 12 and the support 14 can be fixedly connected through buckling, riveting or interference fit and the like.

[0053] In some embodiments, as shown in Figure 3 , Figure 6 and Figure 7 , the first sealing member 16 is formed with a first through hole 162, the first air guide column 141 extends into the trigger chamber 161 through the first through hole 162, and the first through hole 162 and the first air guide column 141 are interference fit to seal the trigger chamber 161. In this way, on the one hand, the negative pressure in the trigger chamber 161 can be more obvious during suction, thereby improving the sensitivity of the airflow sensor 121. On the other hand, the first sealing member 16 can also be positioned when it is mounted on the support 14. The first through hole 162 is aligned with the first air guide column 141, and the first sealing member 16 can be mounted to the predetermined position on the support 14, thereby facilitating assembly.

[0054] In some embodiments, as shown in Figure 3 and Figure 7 , the circuit board 12 includes a first surface 122 and a second surface 123 arranged opposite to each other, wherein the first surface 122 faces the first sealing member 16, and the second surface 123 faces away from the trigger chamber 161, and the airflow sensor 121 is mounted on the second surface 123. At this time, the circuit board 12 is provided with a ventilation hole (not shown) communicating between the first surface 122 and the second surface 123, so that one side of the airflow sensor 121 communicates with the trigger chamber 161 through the ventilation hole. In this way, the space of the trigger chamber 161 can be reduced, and the negative pressure of the trigger chamber 161 during suction can be more obvious, thereby improving the sensitivity of the airflow sensor 121.

[0055] In some embodiments, as shown in Figure 8As shown, the first air guide column 141 has a first air outlet 1411 facing the accommodation chamber 131, and the sidewall of the first air guide column 141 is provided with a first notch 1412 extending to the first air outlet 1411. When the atomizer 20 is accommodated into the accommodation chamber 131, the air in the accommodation chamber 131 will be forced into the trigger chamber 161, causing the air pressure in the trigger chamber 161 to increase, thereby causing an air pressure difference on both sides of the air flow sensor 121, and finally causing the electronic atomization device 100 to be mistakenly started. By providing the first notch 1412, when the atomizer 20 is accommodated into the accommodation chamber 131, the air in the trigger chamber 161 will be partially discharged through the first notch 1412 to keep the air pressure balanced on both sides of the air flow sensor 121, thereby avoiding the electronic atomization device 100 from being mistakenly started.

[0056] In some embodiments, as shown in Figure 3 and Figure 6 The bracket 14 is further provided with a second air guide column 142 extending side by side with the first air guide column 141, and the shell 13 is provided with a first air inlet hole 132 for external air to enter the power assembly 10. One end of the second air guide column 142 communicates with the accommodation chamber 131, and the other end communicates with the first air inlet hole 132, thereby guiding the external air into the power assembly 10. Moreover, when the atomizer 20 is accommodated in the accommodation chamber 131, the second air guide column 142 and the second air inlet hole 221 are aligned to guide the external air from the power assembly 10 into the atomizer 20 when the user inhales, thereby forming a suction air passage of the electronic atomization device 100 between the first air inlet hole 132 and the air outlet hole 2111. Since the first air guide column 141 and the second air guide column 142 used to trigger the air flow sensor 121 are arranged side by side, the air passage for triggering the air flow sensor 121 and the suction air passage in the power assembly 10 are independent of each other, so that the condensate formed in the suction air passage will not drop onto the air flow sensor 121, thereby affecting the air flow sensor 121.

[0057] Further in some embodiments, as shown in Figure 3 and Figure 8 The second air guide column 142 has a second air outlet 1421 facing the accommodation chamber 131, and the sidewall of the second air guide column 142 is provided with a second notch 1422 extending to the second air outlet 1421, so that the air escaping from the first air guide column 141 can enter the second air guide column 142 through the second notch 1422, and then enter the atomizer 20 through the second air guide column 142.

[0058] In some embodiments, as shown in Figure 3 and Figure 7As shown, the circuit board 12 is provided with a second through hole 124, and the second air guide column 142 penetrates through the second through hole 124, so that positioning can be provided when the circuit board 12 is installed, and the second through hole 124 of the circuit board 12 is aligned with the second air guide column 142.

[0059] In some embodiments, as shown in Figure 8 As shown, the first gap 1412 and the second gap 1422 are staggered with each other, that is, the first gap 1412 and the second gap 1422 are not arranged in a straight line, so as to reduce the probability of the aerosol entering the trigger chamber 161 through the first gap 1412 when the user spits out the aerosol.

[0060] In some embodiments, as shown in Figure 9 As shown, the bracket 14 has a first surface 143 facing the accommodation chamber 131 and a second surface 144 facing away from the accommodation chamber 131, the first surface 143 is formed with a groove 1431, and the first air guide column 141 and the second air guide column 142 protrude from the bottom wall of the groove 1431, the groove 1431 is used to collect the condensed liquid flowing out of the second air guide column 142, and the first gap 1412 on the first air guide column 141 and the bottom wall of the groove 1431 are kept at a distance d, so as to avoid the condensed liquid collected in the groove 1431 from flowing into the trigger chamber 161 through the first gap 1412, thereby affecting the electronic components of the circuit board 12,

[0061] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be simple, they are not provided in details; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power supply assembly for providing electrical energy to an atomiser for atomising a liquid substrate to produce an aerosol, characterised in that, The power supply component includes: case; A support is disposed within the housing, and the support and the housing define a receiving chamber for accommodating at least a portion of the atomizer; and a first air guide column communicating with the receiving chamber is disposed on the support; The circuit board is equipped with an airflow sensor. A first sealing element is elastically abutted between the bracket and the circuit board. A trigger chamber is defined between the first sealing element and the circuit board. The first air guide column is in fluid communication with the trigger chamber. One side of the airflow sensor is in communication with the trigger chamber, and the other side is in communication with the outside air. The trigger chamber is used to transmit the suction negative pressure provided by the first air guide column to the airflow sensor.

2. The power pack assembly of claim 1, wherein, The first sealing element is provided with a first through hole, the first air guide column extends through the first through hole into the trigger chamber, and the first air guide column is interference-fitted with the first through hole.

3. The power pack of claim 1, wherein, The circuit board includes a first surface and a second surface disposed opposite to each other, the first surface facing the first seal, and the airflow sensor mounted on the second surface.

4. The power pack of claim 1, wherein, The first air guide column has a first air outlet facing the receiving chamber, and the side wall of the first air guide column is provided with a first notch extending to the first air outlet.

5. The power pack of claim 1, wherein, The bracket is also provided with a second air guide column extending parallel to the first air guide column, and the power supply assembly also includes a first air inlet for external air to enter, and the second air guide column connects the first air inlet and the receiving chamber.

6. The power pack assembly of claim 5, wherein, The circuit board is provided with a second through hole through which the second air guide column passes.

7. The power pack assembly of claim 5, wherein, The second air guide column has a second air outlet facing the receiving chamber, and the side wall of the second air guide column is provided with a second notch extending to the second air outlet.

8. The power pack assembly of claim 7, wherein, The first air guide column has a first air outlet facing the receiving chamber, and the side wall of the first air guide column is provided with a first notch extending to the first air outlet. The first notch and the second notch are in fluid communication and are offset from each other.

9. The power pack assembly of claim 4, wherein, The support includes a first surface facing the receiving chamber, the first surface having a groove for collecting condensate, the first air guide column protruding from the bottom wall of the groove, and the first notch maintaining a distance from the bottom wall.

10. The power pack of claim 1, wherein, The bracket is fixedly connected to the circuit board.

11. An electronic atomizing device, characterized by, include: The atomizer is provided with a liquid reservoir for storing a liquid matrix and an atomizing component for atomizing the liquid matrix to generate an aerosol. The power supply assembly according to any one of claims 1-10, wherein the receiving chamber of the power supply assembly is used to receive at least a portion of the atomizer; wherein The atomizer is provided with a second air inlet for external air to enter and an air outlet for aerosol to escape from the atomizer. When at least a portion of the atomizer is housed in the housing chamber, the power supply assembly is electrically connected to the atomizer, and the second air inlet is in fluid communication with the first air guide column.

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