CN112369691B - Mouthpiece assembly and electronic cigarette - Google Patents

Abstract

The present application provides a nozzle assembly and an electronic cigarette. The nozzle assembly has an air passage and a capacitor element surrounding the air passage. With the nozzle assembly, when the user's mouth covers the nozzle assembly, the capacitance value of the internal capacitor element will change, and the control module can determine that the user is inhaling based on the change.

Description

Mouthpiece assembly and electronic cigarette

Technical Field

The present application belongs to the technical field of electronic cigarettes, and specifically relates to a mouthpiece assembly and an electronic cigarette.

Background technique

Traditional electronic cigarettes all use microphone switches to sense airflow, thereby transmitting signals to the electronic cigarette chip. Those skilled in the art have been exploring new sensing methods to sense whether the user is inhaling, so that the electronic cigarette chip can determine when to heat the liquid in the cigarette cartridge.

Summary of the invention

The purpose of the present application is to provide a mouthpiece assembly and an electronic cigarette to address the deficiencies of the prior art.

In order to solve the above technical problems, the present application adopts the following technical solution: a nozzle assembly, characterized in that the nozzle assembly has an air path channel and a capacitor element surrounding the air path channel.

Optionally, the capacitor element includes: a first annular electrode surrounding the air path channel, a second annular electrode surrounding the first annular electrode, and an insulating elastic member; the first annular electrode is fixedly arranged relative to the air path channel, the first annular electrode and the second annular electrode are separated from each other, the distance between the second annular electrode and the first annular electrode is adjustable, and the insulating elastic member connects the first annular electrode and the second annular electrode respectively; when the first annular electrode and the second annular electrode are close to each other and squeeze the insulating elastic member, the insulating elastic member produces elastic deformation.

Optionally, the nozzle assembly further comprises: a first insulating protective layer surrounding the second annular electrode, and the first insulating protective layer is deformable.

Optionally, the material of the first annular electrode and/or the second annular electrode includes: metal.

Optionally, the material of the insulating elastic member includes: polymer.

Optionally, the nozzle assembly further includes a second insulating protective layer located on the inner surface of the first annular electrode.

Optionally, the material of the second insulating protective layer includes: glass or hard plastic.

Optionally, the nozzle assembly further comprises a detachable elastic protective cover surrounding the capacitive element.

Optionally, the capacitor element includes: a first annular electrode surrounding the gas path, a second annular electrode surrounding the first annular electrode, an insulating filling layer located between the first annular electrode and the second annular electrode, a third insulating protective layer surrounding the second annular electrode, and a plurality of electrode blocks buried in the third insulating protective layer; the first annular electrode and the second annular electrode are separated from each other.

Optionally, the plurality of electrode blocks have the same height and are evenly distributed around the second annular electrode.

An embodiment of the present application also provides an electronic cigarette, including a control module, a cartridge module, and the above-mentioned mouthpiece assembly; the control module is used to detect the capacitance value of the capacitor element, and control the cartridge module to start heating the smoke liquid in the cartridge module according to the capacitance value of the capacitor element.

Compared with the prior art, the beneficial effect of the present application is that when the user's mouth covers the nozzle assembly, it will cause the capacitance value of the internal capacitor element to change. By simply detecting the capacitance value of the capacitor element, it is possible to determine that the user is inhaling, thereby starting to heat the smoke liquid.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a structural diagram of a mouthpiece assembly provided in an embodiment of the present application and an electronic cigarette of which the mouthpiece assembly is a member.

FIG. 2 is a schematic diagram of the structure of a capacitor element in a nozzle assembly provided in an embodiment of the present application.

FIG. 3 is a top view of a capacitor element of a nozzle assembly according to another embodiment of the present application.

FIG. 4 is a side perspective view of the capacitor element shown in FIG. 3 .

The figures are marked as follows: 100, electronic cigarette; 110, capacitor element; 111, second insulating protective layer; 112, first annular electrode; 113a, insulating elastic member; 113, insulating filling layer; 114, second annular electrode; 115a, first insulating protective layer; 115, third insulating protective layer; 116, electrode block; 120, air path; 130, cartridge module; 140, control module; 150, power supply.

Detailed ways

In the present application, it should be understood that terms such as “including” or “having” are intended to indicate the presence of features, numbers, steps, behaviors, components, parts, or a combination thereof disclosed in the present specification, and are not intended to exclude the possibility of the presence of one or more other features, numbers, steps, behaviors, components, parts, or a combination thereof.

It should also be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

The present application will be further described below in conjunction with the embodiments shown in the accompanying drawings.

The present application provides a nozzle assembly, which has an air passage 120 and a capacitor element 110 surrounding the air passage 120. Referring to FIG. 1 , the nozzle assembly can be used in an electronic cigarette 100.

When the user's mouth covers the mouthpiece assembly, the capacitance value of the internal capacitor element 110 will change. The control module 140 inside the electronic cigarette 100 only needs to detect the capacitance value of the capacitor element 110 to determine whether the user is inhaling, and then activate the cigarette cartridge module 130 to heat the cigarette liquid inside.

1 and 2 , the capacitor element 110 includes: a first annular electrode 112 surrounding an air passage 120 (i.e., an internal hollow area of the capacitor element 110 ), a second annular electrode 114 surrounding the first annular electrode 112, and an insulating elastic member 113a; the first annular electrode 112 is fixedly arranged relative to the air passage 120, the first annular electrode 112 and the second annular electrode 114 are separated from each other, the distance between the second annular electrode 114 and the first annular electrode 112 is adjustable, and the insulating elastic member 113a connects the first annular electrode 112 and the second annular electrode 114 respectively; when the first annular electrode 112 and the second annular electrode 114 are close to each other and squeeze the insulating elastic member 113a, the insulating elastic member 113a undergoes elastic deformation.

When the user's mouth covers the nozzle assembly, a slight pressure needs to be applied to the nozzle assembly, causing the distance between the second annular electrode 114 and the first annular electrode 112 to decrease, thereby increasing the capacitance formed between the two. When the user releases the mouth, the insulating elastic member 113a separates the first annular electrode 112 and the second annular electrode 114, and the capacitance formed between the two decreases.

Of course, the first annular electrode 112 and the second annular electrode 114 are not in contact.

In order to make the distance between the first annular electrode 112 and the second annular electrode 114 adjustable, the second annular electrode 114 can be made of a thin metal material that is deformable and recoverable, or it can be a ring with a gap (that is, the angle surrounded by the second annular electrode is less than 360°), and the second annular electrode 114 can also be divided into multiple segments of annular electrodes with certain gaps between them.

Optionally, the nozzle assembly further includes: a first insulating protective layer 115a surrounding the second annular electrode 114, and the first insulating protective layer 115a is deformable. The first insulating protective layer 115a is used to protect the second annular electrode 114, and should be formed of a deformable material, such as an elastic polymer or an inelastic polymer, but not a hard, non-deformable material such as glass or ceramic.

Optionally, the material of the first annular electrode 112 and/or the second annular electrode 114 includes: metal.

Optionally, the material of the insulating elastic member 113a includes: polymer. That is, an elastic polymer block is arranged between the first annular electrode 112 and the second annular electrode 114, or an elastic polymer ring. Of course, the insulating elastic member 113a can also be a U-shaped shrapnel, the top of which can be fixed to a fixed component inside the electronic cigarette (for example, the inner wall of the electronic cigarette or the outer wall of the cartridge module 130), and the two ends of the shrapnel are respectively connected to the first annular electrode 112 and the second annular electrode 114.

Optionally, the nozzle assembly further includes a second insulating protective layer 111 located on the inner surface of the first annular electrode 112. The second insulating protective layer 111 is used to prevent the smoke and the liquid condensed from the smoke from corroding the first annular electrode 112.

Optionally, the material of the second insulating protective layer 111 includes: glass or hard plastic. The shape of the second insulating protective layer 111 should remain stable, so as to ensure the stability of the shape of the first annular electrode 112.

Optionally, the nozzle assembly further includes a detachable elastic protective cover (not shown) surrounding the capacitor element 110. If the user who needs to suck needs to be replaced, only the detachable elastic protective cover needs to be replaced. In this way, multiple people can share the suction while maintaining hygiene.

3 and 4 , in another embodiment, the capacitor element 110 includes: a first annular electrode 112 surrounding the gas path 120 (i.e., the internal hollow area of the capacitor element 110 ), a second annular electrode 114 surrounding the first annular electrode 112, an insulating filling layer 113 located between the first annular electrode 112 and the second annular electrode 114, a third insulating protective layer 115 surrounding the second annular electrode 114, and a plurality of electrode blocks 116 buried in the third insulating protective layer 115; the first annular electrode 112 and the second annular electrode 114 are separated from each other.

Capacitance can be formed between the first annular electrode 112, the second annular electrode 114 and the electrode block 116. When the user's mouth completely covers the suction nozzle assembly, capacitance can also be formed between the user's mouth and each electrode block 116. This causes a change in the equivalent capacitance between the first annular electrode 112 and the second annular electrode 114. Based on the change in this equivalent capacitance, the control module 140 can determine whether the user is suctioning. And only when the user's mouth completely covers all the electrode blocks 116 can a sufficiently large capacitance change be formed. If other parts of the body accidentally touch the suction nozzle assembly, capacitance will only be formed between a small number of electrode blocks 116, and the overall capacitance change is small. Based on this, it is possible to prevent accidental touch.

Optionally, referring to FIG. 4 , the plurality of electrode blocks 116 are of equal height and evenly distributed around the second annular electrode 114 .

1 , an embodiment of the present application provides an electronic cigarette 100, including a control module 140, a cartridge module 130, and the above-mentioned mouthpiece assembly; the control module 140 is used to detect the capacitance value of the capacitor element 110, and control the cartridge module 130 to start heating the smoke liquid in the cartridge module 130 according to the capacitance value of the capacitor element 110.

Specifically, the control module 140 should include a capacitance measurement circuit and a logic control circuit. The cartridge module 130 should include a heating element and a liquid storage chamber for containing liquid. The present application does not limit the specific form of the control module 140 and the cartridge module 130. The power supply 150 supplies power to the control module 140 and the cartridge module 130.

The various embodiments in the present application are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

The protection scope of this application is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to this application without departing from the scope and spirit of this application. If these changes and modifications fall within the scope of the claims of this application and their equivalents, the intention of this application also includes these changes and modifications.

Claims (9)

1. A nozzle assembly, characterized in that the nozzle assembly comprises an air passage (120) and a capacitor element (110) surrounding the air passage (120); The capacitor element (110) comprises: a first annular electrode (112) surrounding the gas path (120), a second annular electrode (114) surrounding the first annular electrode (112), and an insulating elastic member (113a); the first annular electrode (112) is fixedly arranged relative to the gas path (120), the first annular electrode (112) and the second annular electrode (114) are separated from each other, the distance between the second annular electrode (114) and the first annular electrode (112) is adjustable, and the insulating elastic member (113a) is respectively connected to the first annular electrode (112) and the second annular electrode (114); when the first annular electrode (112) and the second annular electrode (114) are close to each other and squeeze the insulating elastic member (113a), the insulating elastic member (113a) generates elastic deformation; The capacitor element (110) further comprises: an insulating filling layer (113) located between the first annular electrode (112) and the second annular electrode (114), a third insulating protective layer (115) surrounding the second annular electrode (114), and a plurality of electrode blocks (116) buried in the third insulating protective layer (115). 2. The suction nozzle assembly according to claim 1 is characterized in that the suction nozzle assembly further comprises: a first insulating protective layer (115a) surrounding the second annular electrode (114), and the first insulating protective layer (115a) is deformable. 3. The nozzle assembly according to claim 1 is characterized in that the material of the first annular electrode (112) and/or the second annular electrode (114) comprises: metal. 4. The suction nozzle assembly according to claim 1 is characterized in that the material of the insulating elastic member (113a) comprises: polymer. 5. The suction nozzle assembly according to claim 1, characterized in that the suction nozzle assembly further comprises a second insulating protective layer (111) located on the inner surface of the first annular electrode (112). 6. The suction nozzle assembly according to claim 5, characterized in that the material of the second insulating protective layer (111) comprises: glass or hard plastic. 7. The suction nozzle assembly according to claim 1 is characterized in that the suction nozzle assembly further comprises a detachable elastic protective cover surrounding the capacitor element (110). 8. The suction nozzle assembly according to claim 7, characterized in that the plurality of electrode blocks (116) have the same height and are evenly distributed around the second annular electrode (114). 9. An electronic cigarette, characterized in that it comprises a control module (140), a cigarette cartridge module (130), and a mouthpiece assembly according to any one of claims 1 to 8; the control module (140) is used to detect the capacitance value of the capacitor element (110), and control the cigarette cartridge module (130) to start heating according to the capacitance value of the capacitor element (110).