CN212545568U - Airflow sensor for electronic cigarette and electronic cigarette - Google Patents

Abstract

The utility model provides an airflow sensor for an electronic cigarette and the electronic cigarette, wherein the airflow sensor comprises a shell, one side of which is provided with an opening; the first connecting plate is arranged at the opening of the shell and is matched with the shell to form an accommodating cavity with an accommodating space; the second connecting plate is arranged outside the accommodating cavity and is electrically connected with the first connecting plate; and an ASIC chip is arranged on the second connecting plate. The utility model provides an airflow sensor through inciting somebody to action ASIC chip set up in the outside of casing can be according to the nimble ASIC chip of conveniently selecting of airflow sensor demand, increased airflow sensor's functional diversity.

Description

Airflow sensor for electronic cigarette and electronic cigarette

Technical Field

The utility model belongs to the technical field of the sensor, specifically, the utility model relates to an airflow sensor and electron cigarette for electron cigarette.

Background

Along with the continuous improvement of living standard of people, the harm of smoking receives more and more attention from people. In order to avoid the harm of harmful substances in the cigarette to the body while enjoying the smoking pleasure, the electronic cigarette is produced.

The electronic cigarette is an electronic product simulating a cigarette, and has the same appearance, smoke, taste and sensation as the cigarette. The electronic cigarette converts nicotine and the like into steam by means of atomization and the like, and then a user can suck the electronic cigarette. And the generation of the atomization needs to be generated by means of an air flow sensor inside the electronic cigarette.

In the airflow sensor of the conventional electronic cigarette, the ASIC chip is disposed inside the housing, and a signal of the ASIC chip is externally output through an external terminal or a bonding wire. On one hand, the internal space of the shell is small, so that the arrangement of a high-power ASIC chip is greatly limited, and the ASIC chip in the traditional airflow sensor is single in selection, so that the airflow sensor has limited functions.

SUMMERY OF THE UTILITY MODEL

The utility model provides an airflow sensor and electron cigarette for electron cigarette to solve the problem that current airflow sensor function is single and low.

In order to solve the above problem, the utility model adopts the following technical scheme:

in a first aspect, the present invention provides an airflow sensor for an electronic cigarette, including:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein one side of the shell is provided with an opening;

the first connecting plate is arranged at the opening of the shell and is matched with the shell to form an accommodating cavity with an accommodating space; the second connecting plate is arranged outside the accommodating cavity and is electrically connected with the first connecting plate; and an ASIC chip is arranged on the second connecting plate.

Optionally, a first air flow aperture is provided in the housing.

Optionally, the method further comprises: the conductive vibrating diaphragm is arranged in the accommodating cavity, and one side of the conductive vibrating diaphragm is electrically connected with the shell;

the conductor connecting part is arranged on one side, far away from the bottom of the shell, of the conductive vibrating diaphragm and comprises an integrated/split polar plate and a grid ring, an opening at one end of the grid ring is connected with the polar plate, and an opening at the other end of the grid ring is electrically connected with the first connecting plate.

Optionally, the method further comprises: the conductive vibrating diaphragm is arranged in the accommodating cavity and is electrically connected with the first connecting plate through a grid ring;

the polar plate is arranged on one side, close to the bottom of the shell, of the conductive vibrating diaphragm.

Optionally, the second connecting plate is connected with the first connecting plate through a surface mount device.

Optionally, the first connecting plate and/or the second connecting plate is a circuit board.

Optionally, a first gap is formed between the gate ring and the sidewall of the housing.

Optionally, an insulating layer is disposed between the polar plate and the conductive diaphragm, and the insulating layer is annular.

Optionally, the housing is made of a metal material.

Optionally, the housing includes an insulating body and a conductive layer covering a surface of the insulating body.

Optionally, a second airflow hole is provided on the plate, and a partial region of the second airflow hole is communicated with the first airflow hole.

Optionally, a third airflow hole is formed in the first connecting plate, a fourth airflow hole is formed in the second connecting plate, and the third airflow hole is communicated with the fourth airflow hole.

Optionally, an airflow channel is defined between the third airflow hole and the fourth airflow hole by the surface mount device.

Optionally, a dust screen is disposed on the housing, and the dust screen is disposed on the first airflow hole.

According to a second aspect of the present invention, there is provided an electronic cigarette, comprising an atomizing wire and the airflow sensor of the first aspect;

the atomization wire is electrically connected with the airflow sensor.

The utility model discloses a technical scheme can reach following beneficial effect:

the utility model provides an airflow sensor for an electronic cigarette, which comprises a shell, wherein one side of the shell is provided with an opening; the first connecting plate is arranged at the opening of the shell and is matched with the shell to form an accommodating cavity with an accommodating space; the second connecting plate is arranged outside the accommodating cavity and is electrically connected with the first connecting plate; and an ASIC chip is arranged on the second connecting plate. The airflow sensor provided by the embodiment of the disclosure can flexibly and conveniently select the ASIC chip according to the requirement of the airflow sensor by arranging the ASIC chip outside the accommodating cavity, so that the functional diversity of the airflow sensor is increased.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of an airflow sensor for an electronic cigarette provided by the utility model;

fig. 2 is a partially enlarged view of fig. 1.

Description of reference numerals:

1-a shell; 11-a first airflow aperture; 2-a conductive diaphragm; 3-an insulating layer; 4-pole plate; 41-a second airflow aperture; 5-a gate ring; 6-a first connecting plate; 61-a third airflow aperture; 7-a second connecting plate; 71-a fourth airflow aperture; 72-an ASIC chip; 73-a capacitive component; 74-surface mount device; 8-a metal ring; 9-dust screen; 10-first gap.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the following embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present disclosure are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the disclosure may be practiced other than those illustrated or described herein, and that the objects identified as "first," "second," etc. are generally a class of objects and do not limit the number of objects, e.g., a first object may be one or more. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

Technical solutions disclosed in the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an embodiment of the present disclosure provides an airflow sensor for an electronic cigarette, including:

the housing 1, the first connecting plate 6 and the second connecting plate 7, in this embodiment, the first connecting plate 6 and the second connecting plate 7 are both circuit boards, and are not described in detail in the following description.

The device comprises a shell 1, wherein one side of the shell 1 is provided with an opening;

the first connecting plate 6 is arranged at an opening of the shell 1, and is matched with the shell 1 to form an accommodating cavity with an accommodating space; the second connecting plate 7 is arranged outside the accommodating cavity, and the second connecting plate 7 is electrically connected with the first connecting plate 6; an ASIC chip 72 is provided on the second connecting plate 7.

Specifically, the sidewall of the housing 1 and the first connecting plate 6 may be electrically connected, that is, the sidewall of the housing 1 bypasses the end of the first connecting plate 6 and bends toward the upper surface of the first connecting plate 6, or a through hole is provided in the first connecting plate 6, and the sidewall of the housing 1 passes through the through hole and is electrically connected with the upper surface of the first connecting plate 6.

The ASIC chip 72 has the characteristics of high processing power, low power consumption, high reliability and a personalized design, and can be applied well to miniaturized electronic devices such as airflow sensors, but the housing 1 has a small accommodating cavity and many components are required to be arranged in the accommodating cavity. The ASIC chip 72 may be bulky to achieve greater processing power, and the small space inside the receiving cavity greatly limits the functionality of the ASIC chip 72. The airflow sensor provided by the embodiment of the present disclosure provides a variety of options for the arrangement of the ASIC chip 72 by arranging the ASIC chip 72 outside the housing 1, specifically on the lower surface or the upper surface of the second connecting plate 7. In order to achieve higher processing capacity, the ASIC chip 72 with a larger size can be selected, and in the use process of the airflow sensor, the ASIC chip can be flexibly and conveniently replaced according to application requirements, so as to improve the applicability of the ASIC chip 72 and further increase the functional diversity of the airflow sensor; in addition, since the ASIC chip 72 needs to perform high-speed data processing and transmission, a large amount of heat is inevitably generated, and when the ASIC chip 72 is disposed outside the housing 1, the heat can be quickly dissipated, thereby ensuring long-term high-speed operation of the ASIC chip 72.

Optionally, referring to fig. 1, a first airflow hole 11 is formed in the housing 1, specifically, a first airflow hole 11 is formed in the bottom of the housing 1, and at this time, the first airflow hole 11 and the opening are oppositely arranged, so that a stable and smooth airflow is formed in the airflow sensor. In addition, the first airflow hole 11 may also be disposed on a side of the housing 1, and the specific position of the first airflow hole 11 is not limited in the embodiment of the present disclosure.

Optionally, referring to fig. 1, the airflow sensor further includes a conductive diaphragm 2 and a conductor connecting portion, the conductive diaphragm 2 is disposed in the accommodating cavity, one side of the conductive diaphragm 2 is electrically connected to the housing 1, specifically, referring to fig. 1, a lower surface of the conductive diaphragm 2 is electrically connected to a bottom edge of the housing 1, an insulating layer 3 is disposed on the other side of the conductive diaphragm 2, and specifically, an insulating layer 3 is disposed on a part of an upper surface of the conductive diaphragm 2; the conductor connecting part is arranged in the accommodating cavity and comprises a polar plate 4 and a grid ring 5, the polar plate 4 is connected with one side, away from the conductive vibrating diaphragm 2, of the insulating layer 3, an opening at one end of the grid ring 5 is connected with the polar plate 4, and an opening at the other end of the grid ring 5 is electrically connected with the first connecting plate 6. The insulating layer 3 can isolate the conductive vibrating diaphragm 2 from the polar plate 4, so that mutual interference of electric signals between the conductive vibrating diaphragm 2 and the polar plate 4 is avoided, and free vibration can be well realized on the part, not provided with the insulating layer 3, of the conductive vibrating diaphragm 2, so that the effect of accurately realizing electric signal transmission is achieved.

Specifically, the polar plate 4 and the gate ring 5 may be made of a metal material to achieve a good conductive effect; however, since the metal material has a high density and a large weight, in order to reduce the weight, the polar plate 4 and the gate ring 5 may also adopt a structure of combining a light non-metal material and a metal conductive layer on the basis of ensuring the transmission of electric signals.

Alternatively, referring to fig. 1, the second connecting plate 7 and the first connecting plate 6 are connected by a surface mount device 74.

The Surface Mount Device (SMD)74 has the characteristics of small structural size, light weight, high packaging density, and high stability, and can reduce much electromagnetic interference, and can be well applied to a small-sized airflow sensor to realize stable electrical connection between the first connecting plate 6 and the second connecting plate 7. Specifically, the surface mount device 74 includes a plug and a socket, and the plug may be disposed on the first connecting plate 6, and the socket is disposed on the second connecting plate 7, so as to electrically connect the first connecting plate 6 and the second connecting plate 7; the plug may be disposed on the second connecting plate 7, and the socket may be disposed on the first connecting plate 6, so as to achieve the effect of stabilizing the electrical connection between the first connecting plate 6 and the second connecting plate 7.

Optionally, referring to fig. 1, a first gap 10 is formed between the conductor connection part and the side wall of the housing 1.

In the embodiment of the present disclosure, the bottom surface of the housing 1 is electrically connected to the conductive diaphragm 2, and the sidewall of the housing 1 is electrically connected to the first connection board; the conductor connecting portion is electrically connected to the first connecting plate 6, and the side wall of the housing 1 is separated from the conductor connecting portion by the insulating layer 3. When the airflow passes through the inner cavity, the conductive vibrating diaphragm 2 can vibrate between the conductor connecting part and the bottom surface of the shell 1, so that a sensing signal is generated and transmitted to the first connecting plate 6, and the sensing signal can be processed and then output outwards by the first connecting plate 6, so that the atomization wire of the electronic cigarette is driven to work. A first gap 10 formed between the conductor connecting part and the side wall of the housing 1 can ensure that the conductor connecting part and the housing 1 are insulated from each other, so as to avoid mutual interference; in addition, in order to increase the insulating performance between the conductor connecting part and the housing 1, an insulating material, such as a gas insulating material like sulfur hexafluoride or a solid insulating material like insulating varnish, insulating glue, insulating fiber product, etc., may be filled in the first gap 10.

Specifically, the airflow sensor further includes a capacitance component 73, and the capacitance component 73 is disposed on the second circuit board 7. The capacitance component 73 can collect the sensing signal, so that the ASIC chip 72 can rapidly and accurately process and feed back the sensing signal collected by the capacitance component 73.

Alternatively, referring to fig. 1 and 2, the insulating layer 3 is disposed in a ring shape.

Specifically, be provided with insulating layer 3 on the conductive diaphragm 2, insulating layer 3 sets up annularly, can make conductive diaphragm 2 with the annular insulating layer 3 relative part free vibration in hollow position guarantees the vibration flexibility of conductive diaphragm 2. And the insulating layer 3 may be disposed at the periphery of the conductive diaphragm 2, so that the vibration range of the conductive diaphragm 2 may be increased. Referring to fig. 2, in a specific embodiment, the insulating layer 3 is disposed on an outer circumference of the upper surface of the conductive diaphragm 2, so that the connection strength between the insulating layer 3 and the conductive diaphragm 2 can be improved, and the middle region of the conductive diaphragm 2 can vibrate freely, thereby ensuring the normal operation of the airflow sensor.

Optionally, referring to fig. 1 and 2, a metal ring 8 is disposed between the conductive diaphragm 2 and the housing 1.

Specifically, the metal ring 8, the conductive diaphragm 2 and the housing 1 may be welded together, so that not only the connection strength of the metal ring 8 can be improved, but also the electrical connection stability between the conductive diaphragm 2 and the housing 1 can be ensured; in addition, in view of the small structural size of the airflow sensor, in order to simplify the assembly process of the metal ring 8, on the basis of ensuring the electrical connection stability of the metal ring 8, the conductive diaphragm 2 and the housing 1 may be bonded together. More importantly, the metal ring 8 is equivalent to a support for supporting the conductive diaphragm 2, and the suspended part of the conductive diaphragm 2 can complete free vibration caused by airflow, so that the vibration flexibility and the degree of freedom of the conductive diaphragm 2 are improved.

Alternatively, the housing 1 may be made of a metal material, and the metal material may facilitate the transmission of electric energy by the housing 1 and form a stable electrical connection with the first connection board 6; in addition, in order to reduce the weight of the housing 1, the housing 1 may also include an insulating body and a conductive layer covering the surface of the insulating body, the insulating body may be made of a polymer material such as plastic, which is not only light in weight but also easy to form, and the conductive layer may be a metal layer, which ensures stable electrical connection between the side wall of the housing 1 and the first connection plate 6.

Alternatively, referring to fig. 1, a second air flow hole 41 is provided in the plate 4, and a partial region of the second air flow hole 41 communicates with the first air flow hole 11.

Specifically, the number of the second air flow holes 41 may be one, two, three, four, or more, and a partial region of the second air flow holes 41 communicating with the first air flow holes 11 may be understood as all partial regions of the second air flow holes 41 communicating with the first air flow holes 11; it is also possible that partial regions of some of the second airflow holes 41 communicate with the first airflow holes 11 and the entire regions of the remaining second airflow holes 41 communicate with the first airflow holes 11. The partial area of the second airflow hole 41 is communicated with the first airflow hole 11, that is, the partial area where the second airflow hole 41 exists blocks the first airflow hole 11, so that when the airflow passes through the first airflow hole 11, the airflow can be buffered when the airflow has an excessive flow rate, and the airflow sensor is prevented from being damaged by the excessive flow rate.

Alternatively, referring to fig. 1, the first connection plate 6 is provided with a third airflow hole 61, the second connection plate 7 is provided with a fourth airflow hole 71, and the third airflow hole 61 and the fourth airflow hole 71 are communicated.

Specifically, the first connecting plate 6 is arranged at the opening of the housing 1, which includes two cases, namely, the first connecting plate 6 does not completely close the opening of the housing 1, so that the airflow in the inner cavity can be conveniently flowed out; the other is that the first connecting plate 6 completely closes the opening of the housing 1, which can increase the structural compactness and integrity of the airflow sensor. Considering that the airflow in the inner cavity needs to smoothly flow out, the third airflow holes 61 may be disposed on the first connection plate 6, and the number and size of the third airflow holes 61 may be selected according to requirements on parameters such as flow rate, pressure, etc. of the airflow in the inner cavity, which is not limited by the embodiment of the present disclosure.

In order to ensure the structural compactness of the airflow sensor, the distance between the first connecting plate 6 and the second connecting plate 7 is generally small, and after the airflow flows out of the third airflow hole 61, in order to provide a smooth flow channel for the airflow, a fourth airflow hole 71 is arranged on the second connecting plate 7, the third airflow hole 61 and the fourth airflow hole 71 are communicated, and the fourth airflow hole 71 can smoothly convey the airflow outwards, so that the stability of the airflow sensor is ensured.

Optionally, referring to fig. 1, an airflow path is defined between the third airflow hole 61 and the fourth airflow hole 71 through the surface mount device 74.

Specifically, in order to electrically connect the first connection plate 6 and the second connection plate 7, it is necessary to provide an electrical connection component between the first connection plate 6 and the second connection plate 7, similar to the surface mount device 74, etc., which provides a certain gap between the first connection plate 6 and the second connection plate 7, resulting in the third airflow hole 61 and the fourth airflow hole 71 being spaced apart, the airflow being output to the outside after passing through the third airflow hole 61 and the fourth airflow hole 71 in order, and in order to prevent the airflow from leaking in the gap between the third airflow hole 61 and the fourth airflow hole 71, it is necessary to close the airflow passage between the third airflow hole 61 and the fourth airflow hole 71. The surface mount device 74 is disposed right between the first connection plate 6 and the second connection plate 7, and the surface mount device 74 is used to close the air flow channel, so that the sealing performance between the third air flow hole 61 and the fourth air flow hole 71 is ensured, the function of the surface mount device 74 is increased, and the dual functions of electrical connection and mechanical sealing are realized.

Optionally, referring to fig. 1, a dust screen 9 is disposed on the housing 1, and the dust screen 9 is disposed on the first airflow hole 11.

Specifically, the first airflow hole 11 is used for facilitating the airflow to enter the inner cavity, and the inner cavity contains more important electronic components, so that if impurities such as dust carried in the airflow enter the inner cavity, the functions of the electronic components in the inner cavity can be weakened or even damaged. And set up on first airflow hole 11 dust screen 9 alright avoid impurity such as dust to enter into in the inner chamber, moreover dust screen 9 sets up the outside of first airflow hole 11 also can not drop because of the impact of air current, has guaranteed dust screen 9's joint strength and stability. In addition, the dust screen 9 can also be embedded into the first airflow hole 11, so that not only the structural compactness of the airflow sensor can be improved, but also the housing 1 can play a certain role in protecting the dust screen 9.

It should be noted that, in the airflow sensor disclosed in the present invention, the first connecting plate and the second connecting plate may both adopt a circuit board, and one of them may also adopt a circuit board structure, and may also be other devices that can be used for electrical conduction. In addition, in the present embodiment, the conductive diaphragm 2 is disposed at the lower side position of the polar plate 4, and in fact, the conductive diaphragm 2 may also be disposed at the upper side position of the polar plate 4, that is, the polar plate 4 is disposed at the position of the conductive diaphragm 2 close to the bottom of the casing 1, and in this structure, the conductive diaphragm 2 is electrically connected to the first connection plate through the gate ring 5.

The embodiment of the present disclosure further provides an electronic cigarette, which includes an atomizing wire and the airflow sensor;

the atomization wire is electrically connected with the airflow sensor.

Specifically, the atomizing silk with the back is connected to the air current sensor electricity, the air current sensor can give the atomizing silk provides the signal of telecommunication, is guaranteeing when electron smog atomization effect, give the atomizing silk provides stable electric energy.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that many more modifications and variations can be made without departing from the spirit of the disclosure and the scope of the appended claims.

Claims (15)

1. An airflow sensor for an electronic cigarette, comprising:

the device comprises a shell (1), wherein one side of the shell (1) is provided with an opening;

the connecting structure comprises a first connecting plate (6) and a second connecting plate (7), wherein the first connecting plate (6) is arranged at an opening of the shell (1) and is matched with the shell (1) to form an accommodating cavity with an accommodating space; the second connecting plate (7) is arranged outside the accommodating cavity, and the second connecting plate (7) is electrically connected with the first connecting plate (6); an ASIC chip (72) is arranged on the second connecting plate (7).

2. Gas flow sensor according to claim 1, characterized in that a first gas flow opening (11) is provided in the housing (1).

3. The airflow sensor of claim 2 further comprising:

the conductive vibrating diaphragm (2) is arranged in the accommodating cavity, and one side of the conductive vibrating diaphragm (2) is electrically connected with the shell (1);

the conductor connecting part is arranged on one side of the bottom of the shell (1) far away from the conductive vibrating diaphragm (2), the conductor connecting part comprises a polar plate (4) and a grid ring (5) which are integrally/separately arranged, one end opening of the grid ring (5) is connected with the polar plate (4), and the other end opening of the grid ring (5) is electrically connected with the first connecting plate (6).

4. The airflow sensor of claim 1 further comprising:

the conductive diaphragm (2) is arranged in the accommodating cavity, and is electrically connected with the first connecting plate (6) through a grid ring (5);

the polar plate (4), the polar plate (4) set up in the one side of electrically conductive vibrating diaphragm (2) near the bottom of casing (1).

5. The airflow sensor according to claim 1, wherein the second connection plate (7) and the first connection plate (6) are connected by a surface mount device (74).

6. The airflow sensor according to any of claims 1-5, characterized in that the first connection plate (6) and/or the second connection plate (7) is a circuit board.

7. The gas flow sensor according to claim 3 or 4, characterized in that a first gap (10) is formed between the grating ring (5) and the side wall of the housing (1).

8. The airflow sensor according to claim 3 or 4, wherein an insulating layer (3) is arranged between the pole plate (4) and the conductive diaphragm (2), and the insulating layer (3) is annular.

9. The gas flow sensor according to claim 1, characterized in that the housing (1) is made of a metallic material.

10. The gas flow sensor according to claim 1, characterized in that the housing (1) comprises an insulating body and a conductive layer covering the surface of the insulating body.

11. The gas flow sensor according to claim 3, characterized in that a second gas flow hole (41) is provided on the plate (4), and a partial area of the second gas flow hole (41) communicates with the first gas flow hole (11).

12. The airflow sensor according to claim 5, wherein the first connecting plate (6) is provided with a third airflow hole (61), and the second connecting plate (7) is provided with a fourth airflow hole (71), and the third airflow hole (61) and the fourth airflow hole (71) communicate.

13. The airflow sensor of claim 12, wherein the third airflow aperture (61) and the fourth airflow aperture (71) define an airflow channel therebetween through the surface mount device (74).

14. The airflow sensor according to claim 2, characterized in that a dust screen (9) is arranged on the housing (1), the dust screen (9) being arranged on the first airflow hole (11).

15. An electronic cigarette comprising an aerosolizing filament and the airflow sensor of any one of claims 1-14;

the atomization wire is electrically connected with the airflow sensor.

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