CN215603164U

CN215603164U - Atomizer and aerosol generating device

Info

Publication number: CN215603164U
Application number: CN202022638550.XU
Authority: CN
Inventors: 邱伟华
Original assignee: Changzhou Paiteng Electronic Technology Co Ltd
Current assignee: Changzhou Paiteng Electronic Technology Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2022-01-25
Anticipated expiration: 2030-11-13
Also published as: WO2022100171A1; US20230413906A1; EP4245163A1

Abstract

The utility model provides an atomizer and an aerosol generating device, comprising a base, wherein an air inlet is formed on the base; a liquid storage member having a liquid storage chamber formed therein; and an atomizing assembly; the atomization assembly comprises a fixed seat and an atomization core, the atomization core is connected in the atomization cavity and atomizes aerosol forming substrates provided by the liquid storage cavity, and the atomized smoke is output under the driving of gas introduced by the gas inlet; an air return channel is formed on the fixed seat, and the air return channel is communicated between the air inlet and the liquid storage cavity. According to the atomizer, the air return channel is formed on the fixing seat, and after the aerosol forming substrate in the liquid storage cavity is consumed, outside air can be supplemented through the air return channel, so that negative pressure is prevented from being formed in the liquid storage cavity, liquid discharging is smooth, the atomizing core is prevented from being burnt dry, and the safety performance of the aerosol generating device is improved.

Description

Atomizer and aerosol generating device

Technical Field

The present invention relates to aerosol generating devices, and particularly to an atomizer and an aerosol generating device.

Background

Aerosol generating devices typically comprise an atomizer and a power supply device electrically connected to the atomizer, the atomizer being capable of heating and atomizing the aerosol-forming substrate stored therein for inhalation by a user under the influence of an electric drive of the power supply device.

At present, in the structure of the aerosol generating device, aerosol forming substrates in a liquid storage cavity of an atomizer are continuously consumed by an atomizing core (for example, a ceramic core), so that negative pressure is generated in the liquid storage cavity and liquid discharging is not smooth, and then the atomizing core is insufficient in liquid supply to generate bad smell after dry burning, and the safe use of the aerosol generating device is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need for an atomizer that improves the safety of aerosol generating devices.

It is also desirable to provide an aerosol generating device having the above atomizer.

An atomizer comprising:

a base, on which an air inlet is arranged;

a reservoir coupled to the base and defining a reservoir chamber therein for storing an aerosol-forming substrate; and

the atomization assembly is connected to the base in a matching mode; the atomization assembly comprises a fixed seat and an atomization core, an atomization cavity communicated with the liquid storage cavity and the air inlet is formed in the fixed seat, the atomization core is connected in the atomization cavity and atomizes aerosol forming substrates provided by the liquid storage cavity, and the atomized smoke is output under the driving of air introduced by the air inlet; the fixing seat is provided with an air return channel, and the air return channel is communicated between the air inlet and the liquid storage cavity.

In one embodiment, the fixing seat comprises a base and a liquid sealing part, the base is supported on the base, an inner cavity of the base forms the atomizing cavity, and an air return groove is formed in the outer wall surface of the base;

the liquid sealing piece is sleeved outside the base and surrounds the air return groove to form the air return channel.

In one embodiment, the air return grooves are arranged along the circumferential direction of the outer wall surface of the base in a labyrinth manner.

In one embodiment, a smoke outlet is formed in the top of the base, a communication air passage is further formed in the outer wall surface of the base, and the communication air passage is communicated between the atomization cavity and the smoke outlet.

In one embodiment, the air inlet end of the air return channel is communicated with the lower end of the communicating air passage communicated with the atomizing cavity, and the air outlet end of the air return channel is communicated with the liquid storage cavity.

In one embodiment, the liquid seals are each configured to form a bottom of the reservoir chamber.

In one embodiment, the liquid sealing member is liquid sealing silica gel sleeved outside the base.

In one embodiment, the base comprises a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, two bosses are convexly formed on two opposite inner side surfaces of the side wall, and the atomizing assembly is supported on the two bosses;

the atomizer includes imbibition spare, imbibition spare set up in between two bosss and be located atomization component's below.

In one embodiment, the atomization assembly comprises an atomization core sealing piece, and the atomization core is sleeved in the atomization core sealing piece and supported on the two bosses together with the atomization core sealing piece;

the liquid sealing piece is provided with a first liquid inlet hole, the base is provided with a second liquid inlet hole, and the atomizing core sealing piece is provided with a third liquid inlet hole;

the first liquid inlet hole, the second liquid inlet hole and the third liquid inlet hole are communicated together to drain aerosol in the liquid storage cavity to form a liquid inlet channel for enabling the substrate to flow to the atomizing core.

An aerosol generating device comprises the atomizer.

According to the atomizer, the air return channel is formed on the fixing seat, after the aerosol forming substrate in the liquid storage cavity is consumed, outside air can be supplemented through the air return channel, negative pressure in the liquid storage cavity is avoided, the air pressure difference in the liquid storage cavity is balanced, liquid discharging is smooth, sufficient liquid supply of the atomizing core is guaranteed, the atomizing core is prevented from being burnt dry, and the safety performance of the aerosol generating device is improved.

Drawings

FIG. 1 is a schematic diagram of an atomizer in accordance with an embodiment of the present invention;

FIG. 2 is a partially exploded schematic view of the atomizer shown in FIG. 1;

FIG. 3 is an exploded view of the atomizer shown in FIG. 1;

FIG. 4 is a cross-sectional view of the atomizer shown in FIG. 1;

FIG. 5 is a schematic view of the flow path of the gas stream in the return air passage of the atomizer shown in FIG. 1;

FIG. 6 is a bottom schematic view of the atomizer shown in FIG. 1;

FIG. 7 is a cross-sectional view of the atomizer shown in FIG. 6 taken along the direction B-B

Fig. 8 is a cross-sectional view of the atomizer shown in fig. 6 taken along the direction a-a.

Aerosol generating device 100	Atomizer 10
		Base 11	Bottom wall 110
Air inlet 1101	Side wall 112
		Boss 1121	Base seal 114
Attracting magnet 12
		Liquid storage part 13	Reservoir 130
Atomizing assembly 15	Fixing seat 150
		Atomizing chamber 150a	Air return passage 150b
Base
	1501	Smoke outlet 1501a
Second liquid inlet hole 1501b			Liquid sealing component 1503
	The first liquid inlet 1503a	Air return groove 1505
Communicating gas passage 1507			Atomizing core 152
	Atomizing core seal 154	Third liquid inlet hole 154a
Electrode 17			Liquid absorbing member 19

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to figure 1, in one embodiment of the utility model, there is provided an aerosol generating device 100 comprising an atomiser 10 and a power supply (not shown) electrically connected to the atomiser 10, wherein, in use, the power supply is arranged to supply electrical power to the atomiser 10 to heat an aerosol-forming substrate stored in the atomiser 10, which is atomised under the action of the heat to form an aerosol for inhalation by a user.

Referring to fig. 2, the atomizer 10 includes a base 11, a liquid reservoir 13, and an atomizing assembly 15. Wherein, the base 11 is used for providing support for the installation of other components of the atomizer 10, the liquid storage part 13 is connected to the base 11, and a liquid storage cavity 130 (as shown in fig. 4) for storing aerosol-forming substrate is formed in the liquid storage part, the atomizing assembly 15 is connected to the base 11 and located in the gravity direction of the aerosol-forming substrate in the liquid storage cavity 130, the aerosol-forming substrate in the liquid storage cavity 130 can be heated and atomized to form smoke under the action of the power supply device providing electric energy to the atomizer 10 after flowing into the atomizing assembly 15, and the smoke is sucked under the suction action of the user.

Referring to fig. 3 and 4, the base 11 includes a bottom wall 110 and a side wall 112 formed by extending an outer edge of the bottom wall 110 in the same direction, and the bottom wall 110 and the side wall 112 together surround an inner cavity of the base 11. Wherein, the bottom wall 110 is opened with an air inlet 1101 communicated with the outside for providing the outside cold air for the atomizing assembly 15 under the suction action of the user. Two bosses 1121 are formed on two inner side surfaces of the sidewall 112 opposite to each other in a protruding manner, and the atomizing assembly 15 is supported on the two bosses 1121.

Further, the atomizer 10 further includes an absorption magnet 12, and the absorption magnet 12 is coupled to the bottom wall 110 and at least partially exposed from a bottom surface of the bottom wall 110, for realizing detachable cooperation of the atomizer 10 and the power supply device.

Still further, the base 11 further includes a base seal 114 for sealing a gap between the base 11 and the reservoir 13.

The atomizing assembly 15 includes a holder 150, an atomizing core 152, and an atomizing core seal 154. An atomizing cavity 150a communicated with the liquid storage cavity 130 and the air inlet 1101 is formed in the fixing seat 150, the atomizing core 152 is sleeved in the atomizing core sealing piece 154, and the two atomizing core sealing pieces are supported on the two bosses 1121 and are contained in the atomizing cavity 150 a.

Referring to fig. 3 and 5, an air return channel 150b is formed on the fixing base 150, and the air return channel 150b is communicated between the air inlet 1101 and the liquid storage cavity 130, so that after the aerosol-forming substrate in the liquid storage cavity 130 is consumed, the air can be supplied to the outside through the air return channel 150b to balance the air pressure difference in the liquid storage cavity 130, thereby achieving smooth liquid discharge, further ensuring sufficient liquid supply of the atomizing core 152, preventing the atomizing core 152 from being burned dry, and improving the safety performance of the aerosol generating device 100.

Specifically, the fixing base 150 includes a base 1501 and a liquid sealing member 1503. The base 1501 is supported on the base 11 and has an inner cavity configured to form an aerosolizing chamber 150 a. In this embodiment, referring to fig. 4 in particular, the two bosses 1121 are two-step stepped, and the base 1501 is supported on the two-step of the two bosses 1121 far from the bottom wall 110. The atomizing core 152 is nested within the atomizing core seal 154, which together are supported on a step adjacent the bottom wall 110 in the two bosses 1121, and are at least partially nested within the base 1501.

The susceptor 1501 has a substantially hollow cylindrical shape, and an air return groove 1505 is formed in an outer wall surface thereof. The liquid sealing member 1503 is also substantially hollow and cylindrical, and is fitted over the base 1501 to enclose the air return groove 1505 to form the air return channel 150 b. In this embodiment, the liquid sealing member 1503 is a liquid sealing silica gel, which is sleeved outside the base 1501 and configured to form the bottom of the liquid storage cavity 130, so as to prevent the aerosol matrix in the liquid storage cavity 130 from leaking, and simultaneously, the aerosol matrix can be supplemented with the outside air, so as to balance the air pressure difference in the liquid storage cavity 130, and achieve smooth liquid discharge.

Referring to fig. 3, 6 and 7 together, a smoke outlet 1501a is formed at the top of the base 1501, a communicating air passage 1507 is further formed on the outer wall surface of the base 1501, and the communicating air passage 1507 is communicated between the atomizing chamber 150a and the smoke outlet 1501a, so that smoke generated by atomization can flow from the atomizing chamber 150a to the smoke outlet 1501a under the suction action of a user, and is provided for the user to inhale.

Referring to fig. 3 and 5, further, the air inlet end I of the air return channel 150b is communicated with the lower end of the communicating air passage 1507 communicated with the atomizing cavity 150a, and the air outlet end O of the air return channel 150b is communicated with the liquid storage cavity 130, so that after the aerosol substrate is atomized under the heating action of the atomizing core 152 during the suction process of the user, part of the condensate generated during the process that the smoke flows to the oral cavity of the user through the communicating air passage 1507 and the smoke outlet 1501a can flow to the air return channel 150b from the tube wall of the communicating air passage 1507 under the action of gravity, and is absorbed and stored in the liquid storage cavity 130 through the air return channel 150b, thereby preventing the user from sucking the condensate, reducing the noise generated by the condensate flowing in the communicating air passage 1507, and improving the user experience.

Referring back to fig. 3 and 4, further, the air return groove 1505 is disposed along the circumferential labyrinth of the outer wall surface of the base 1501, and the labyrinth structure is designed to effectively prevent the aerosol-forming substrate in the liquid storage chamber 130 from leaking to the outside through the air return channel 150b, thereby improving the user experience.

The atomizer 10 further includes an electrode 17, the electrode 17 being coupled to the bottom wall 110 of the base 11. The atomizing core seal 154 is substantially in the form of a hollow cylinder with an open lower end, and the heating surface and the electrical connection surface of the atomizing core 152, which are used for supplying electrical energy to the heating surface for generating heat required for atomizing the aerosol-forming substrate, are exposed through the atomizing core seal 154, and are electrically connected to the electrode 17. In this particular embodiment, the atomizing core 152 is a porous ceramic core structure.

Referring to fig. 3, fig. 6 and fig. 8, further, a first liquid inlet 1503a is formed at the top of the liquid sealing component 1503, a second liquid inlet 1501b is formed on the base 1501, and a third liquid inlet 154a is formed on the atomizing core sealing component 154. The first liquid inlet hole 1503a, the second liquid inlet hole 1501b and the third liquid inlet hole 154a are communicated together to form a liquid inlet channel for guiding aerosol-forming substrate in the liquid storage cavity 130 to flow to the atomizing core 152. During inhalation, the atomizing core 152 atomizes the aerosol-forming substrate provided by the reservoir 130 and the aerosol formed after atomization is carried by the gas introduced through the gas inlet 1101 to the mouth of the user for inhalation.

Referring to fig. 3 and 4 again, further, the atomizer 10 includes a liquid absorbing member 19, the liquid absorbing member 19 is disposed between the two bosses 1121 and located below the atomizing assembly 15 for absorbing the condensate dropped from the atomizing assembly 15.

According to the atomizer 10, the air return channel 150b is formed on the fixing seat 150, after the aerosol forming substrate in the liquid storage cavity 130 is consumed, outside air can be supplemented through the air return channel 150b, negative pressure in the liquid storage cavity 130 is avoided, the air pressure difference in the liquid storage cavity 130 is balanced, liquid discharging is smooth, sufficient liquid supply of the atomizing core 152 is further guaranteed, the atomizing core 152 is prevented from being burnt, and the safety performance of the aerosol generating device 100 is improved.

The present invention further provides an aerosol generating device 100 having the atomizer 10, and the aerosol generating device 100 has all functions of the atomizer 10, which are not described herein again.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, it is possible to make various changes and modifications without departing from the spirit of the present invention, and these changes and modifications are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An atomizer, characterized by: the atomizer includes:

a base, on which an air inlet is arranged;

the atomization assembly is connected to the base in a matching mode; the atomization assembly comprises a fixed seat and an atomization core, an atomization cavity communicated with the liquid storage cavity and the air inlet is formed in the fixed seat, the atomization core is connected in the atomization cavity and atomizes aerosol forming substrates provided by the liquid storage cavity, and the atomized smoke is output under the driving of air introduced by the air inlet;

the fixing seat is provided with an air return channel, and the air return channel is communicated between the air inlet and the liquid storage cavity.

2. The nebulizer of claim 1, wherein: the fixed seat comprises a base and a liquid sealing part, the base is supported on the base, an inner cavity of the base is constructed to form the atomizing cavity, and an air return groove is formed in the outer wall surface of the base;

3. A nebulizer as claimed in claim 2, wherein: the air return groove is arranged along the circumferential labyrinth of the outer wall surface of the base.

4. A nebulizer as claimed in claim 2, wherein: the top of base has been seted up the cigarette hole, the outer wall of base still constructs the intercommunication air flue, the intercommunication air flue communicate in the atomizing chamber with between the cigarette hole.

5. The nebulizer of claim 4, wherein: the air inlet end of the air return channel is communicated with the lower end of the communicating air passage communicated with the atomizing cavity, and the air outlet end of the air return channel is communicated with the liquid storage cavity.

6. A nebulizer as claimed in claim 2, wherein: the liquid seals are respectively configured to form a bottom of the liquid storage cavity.

7. A nebulizer as claimed in claim 2, wherein: the liquid sealing part is liquid sealing silica gel sleeved outside the base.

8. A nebulizer as claimed in claim 2, wherein: the base comprises a bottom wall and a side wall formed by extending the outer edge of the bottom wall in the same direction, two bosses are convexly formed on two opposite inner side surfaces of the side wall, and the atomizing assembly is supported on the two bosses;

9. The atomizer of claim 8, wherein: the atomization assembly comprises an atomization core sealing piece, and the atomization core is sleeved in the atomization core sealing piece and supported on the two bosses together with the atomization core sealing piece;

10. An aerosol generating device, comprising: the aerosol generating device comprising a nebulizer according to any one of claims 1 to 9.