Aerosol generating device and aerosol generating system

Abstract

The present invention provides an aerosol generating device, which comprises: a housing, the housing includes a first opening, a second opening and a mounting member located between the first opening and the second opening, the first opening and the second opening are arranged at both ends of the housing; a heating element, the heating element is connected to the housing through the mounting member and can be used to heat an aerosol-forming substrate located in a heating chamber, and the aerosol-forming substrate can be placed into the heating chamber through the first opening; a support member, the support member is connected to the heating element and can disengage the heating element from the mounting member; the heating element can be disengaged from the housing through the second opening. There is also provided an aerosol generating system, by disengaging the heating element from the aerosol generating device, the heating element and the heating chamber can be thoroughly cleaned, thus having a better cleaning effect.

Description

Technical Field

[0001] The present invention relates to the field of electronic products, and in particular to an aerosol generating device and an aerosol generating system. Background Art

[0002] At present, the heat-not-burn appliances on the market are generally divided into two categories: internal heating and external heating. Whether it is an internal heating appliance or an external heating appliance, during use, there are problems that the tobacco medium falls into the heating chamber, or after using for a period of time, the smoke generated by the heating of the tobacco medium condenses and cokes in the heating chamber. The existing smoking device products adopt a solution of brush + self-cleaning by heating for the above two situations, that is, using a brush to clean the residues in the heating chamber, and using high-temperature heating to evaporate the condensate oil or combustion coke, so as to achieve the purpose of cleaning the heating chamber. However, due to the small volume inside the heating chamber, there is always incomplete cleaning, and due to the limitation of the high-temperature resistance characteristics of the material, the high-temperature heating cleaning method cannot use too high a temperature, so the cleaning effect is not very ideal. Summary of the Invention

[0003] The purpose of the present invention is to solve the problem of poor cleaning effect of the heating chamber in the aerosol generating device. The present invention provides an aerosol generating device and an aerosol generating system, by disassembling the heating element from the aerosol generating device to thoroughly clean the heating element and the heating chamber, thereby having a better cleaning effect.

[0004] To solve the above problems, the present invention provides an aerosol generating device, the device includes: a housing, the housing includes a first opening, a second opening and a mounting member located between the first opening and the second opening, the first opening and the second opening are provided at both ends of the housing; a heating element, the heating element is connected to the housing through the mounting member and can be used to heat the aerosol-forming substrate located in the heating chamber, and the aerosol-forming substrate can be placed into the heating chamber through the first opening; a support member, the support member is connected to the heating element and can disengage the heating element from the mounting member; the heating element can be detached from the housing through the second opening.

[0005] Adopting the above technical solution, by detaching the heating element from the aerosol generating device to thoroughly clean the heating element and the heating chamber, thereby having a better cleaning effect.

[0006] According to another specific embodiment of the present invention, the embodiment of the present invention discloses an aerosol generating device, and the support member is detachably connected to the heating element.

[0007] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. The mounting member includes a first tapered hole, and at least a part of the fixing member for mounting the heating element is adapted to the first tapered hole.

[0008] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. Electric connection contacts are provided on the mounting member, and the electric connection contacts can be electrically connected to the heating element or to a detection unit for detecting information related to the heating element.

[0009] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. A temperature detection element is provided on the support member. The temperature detection element is in contact with the heating element and is electrically in contact with the electric connection contacts.

[0010] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. A first fixing member and a second fixing member are provided on the support member. A notch is provided on the second fixing member. The temperature detection element is arranged between the first fixing member and the second fixing member, and the temperature sensing part of the temperature detection element is in contact with the heating element through the notch.

[0011] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. Extension parts are provided at both ends of the temperature sensing part of the temperature detection element. When the heating element is connected to the mounting member, the extension parts are electrically in contact with the electric connection contacts through elastic members.

[0012] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. A recess is provided on at least one of the first fixing member and the second fixing member, and the extension part is arranged in the recess.

[0013] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. An operation part is provided on the support member, and by operating the operation part, the heating element can be separated from the mounting member.

[0014] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. The support member includes a connecting part, and the connecting part is detachably connected to the second opening.

[0015] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. The second opening includes a second tapered hole, and at least a part of the connecting part is adapted to the second tapered hole.

[0016] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. The device further includes a coil holder and an electromagnetic coil. The electromagnetic coil is disposed on the coil holder, and the coil holder is detachably mounted on the first opening end of the housing. Electric connection contacts are further provided on the coil holder. When the coil holder is mounted on the housing, the electric connection contacts can be electrically connected to the control unit of the device.

[0017] According to another specific embodiment of the present invention, an aerosol generating device is disclosed in an embodiment of the present invention. The device further includes a fastener sleeved on the heating element.

[0018] The present invention further provides an aerosol generating system, including: the above aerosol generating device; and an aerosol generating matrix, wherein the aerosol generating device is used to heat the aerosol generating matrix. Description of the Drawings

[0019] Figure 1 It is a cross-sectional view of the aerosol generating device provided by an embodiment of the present invention;

[0020] Figure 2 It is an exploded view of a first fixing member, a second fixing member and a fastener provided by an embodiment of the present invention;

[0021] Figure 3 It is a schematic structural view of a temperature sensor in contact with an elastic contact provided by an embodiment of the present invention;

[0022] Figure 4 It is an exploded view of the aerosol generating device provided by an embodiment of the present invention.

[0023] Description of Element Numbers:

[0024] 1 - Housing; 110 - Bottom plate; 120 - Top plate; 1210 - First opening; 1110 - Second opening; 2 - Mounting member; 3 - First tapered hole; 4 - Heating element; 410 - Base; 5 - Support member; 610 - First fixing member; 620 - Second fixing member; 630 - Clamping block; 640 - Notch; 650 - Recess; 7 - Temperature detection element; 710 - Temperature sensing part; 720 - Extension part; 8 - Coil holder; 9 - Electromagnetic coil; 10 - Cover plate; 11 - Coil heat shrink film; 12 - Connection part; 13 - U-shaped handle; 14 - First through hole; 15 - Second through hole; 16 - Fixed pin; 17 - Button; 18 - Fastener; 180 - Card slot; 19 - Battery; 20 - Sub-board PCB; 21 - Main board PCBA; 22 - Elastic member; A - First direction. Detailed Embodiments

[0025] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention will be introduced in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to this implementation manner. On the contrary, the purpose of introducing the invention in conjunction with the implementation manner is to cover other alternatives or modifications that may extend based on the claims of the present invention. In order to provide a deep understanding of the present invention, many specific details will be included in the following description. The present invention can also be implemented without using these details. In addition, in order to avoid confusing or obscuring the key points of the present invention, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0026] It should be noted that in this specification, similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0027] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "top", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0028] Terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0029] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0030] To make the purpose, technical solutions, and advantages of the present invention clearer, the following will further describe the implementation manners of the present invention in detail with reference to the drawings.

[0031] Reference Figure 4An embodiment of the present invention provides an aerosol generating device, the device comprising: a shell 1, the shell 1 comprising a first opening 1210, a second opening 1110 and a mounting member 2 located between the first opening 1210 and the second opening 1110, the first opening 1210 and the second opening 1110 being arranged at two ends of the shell 1; a heating element 4, the heating element 4 being connected to the shell 1 through the mounting member 2 and being capable of being used to heat an aerosol-forming substrate located in a heating chamber, the aerosol-forming substrate being capable of being placed in the heating chamber through the first opening 1210; a support member 5, the support member 5 being connected to the heating element 4 and being capable of detaching the heating element 4 from the mounting member 2; the heating element 4 being capable of detaching from the shell 1 from the second opening 1110.

[0032] Specifically, the support member 5 is connected to the heating element 4 and can enable the heating element 4 to be separated from the mounting member 2 and separated from the housing 1 through the second opening 1110 .

[0033] When it is necessary to clean the heating element 4 or the heating chamber where the heating element 4 is located, that is, when there are tobacco residues, condensed oil and coking inside the heating chamber, the support member 5 can be removed from the aerosol generating device. Since the heating element 4 and the support member 5 are connected as a whole, the heating element 4 is also separated from the aerosol generating device along with the support member 5, and is cleaned by wiping, washing with water, ultrasonic cleaning and the like. The tobacco oil remaining in the aerosol generating device does not need to be cleaned with a special brush, and can be cleaned by wiping with a paper towel or even rinsing with clean water, so as to thoroughly clean the heating element and the heating chamber, thereby having a better cleaning effect, being convenient for users to use, having a good inhalation experience, and ensuring the consistency of aerosol release.

[0034] In the embodiment provided by the present invention, the support member 5 and the heating element 4 are detachably connected. While ensuring that the heating element is detached from the aerosol generating device from the second opening, the support member 5 and the heating element 4 can also be cleaned separately, which is convenient for the manufacture, installation and use of parts. When the support member or the heating element 4 needs to be replaced, only the support member or the heating element 4 needs to be replaced separately, thereby reducing the user's use cost.

[0035] refer to Figure 4 In another embodiment provided by the present invention, the mounting member 2 includes a first tapered hole 3 , and at least a portion of a fixing member for mounting the heating element 4 is adapted to the first tapered hole 3 .

[0036] Specifically, the heating element 4 is fixed between the first opening 1210 and the first tapered hole 3 by a fixing member and extends towards the first opening 1210. The aerosol - generating matrix is placed into the heating chamber from the first opening 1210, and the heating element 4 heats the aerosol - generating matrix. Moreover, a part of the fixing member for installing the heating element 4 is adapted to the first tapered hole 3, preventing the e - liquid in the heating chamber from seeping under the mounting member after the aerosol - generating device has been used for a period of time, thus avoiding affecting the circuit connection and being difficult to clean, so as to extend the service life of the aerosol - generating device and facilitate cleaning.

[0037] Here, the inner diameter of the first tapered hole 3 can gradually decrease along the first direction A, which not only prevents the e - liquid in the heating chamber from seeping under the mounting member but also facilitates the detachment and installation of the heating element 4 and the mounting member 2.

[0038] In the embodiment provided by the present invention, electrical connection contacts are provided on the mounting member 2, and the electrical connection contacts can be electrically connected to the heating element 4 or to a detection unit for detecting information related to the heating element 4.

[0039] In the embodiment provided by the present invention, referring to Figure 4 , the aerosol - generating device further includes a coil holder 8 and an electromagnetic coil 9. The electromagnetic coil 9 is disposed on the coil holder 8, and the coil holder 8 is detachably mounted at the first opening end of the housing 1; electrical connection contacts are also provided on the coil holder 8, and when the coil holder 8 is mounted on the housing 1, the electrical connection contacts can be electrically connected to the control unit of the device.

[0040] Specifically, the self - inductance coefficient of induction heating represents a physical quantity of the self - inductance ability of a coil, commonly denoted by L, with the unit of henry, that is, the inductance we often mention; the magnetization of induction heating is the result of the ordered arrangement of magnetic moments, and the more ordered, the greater the magnetization intensity. Induction heating can have the following two forms:

[0041] (1) When no temperature - detection element is provided in the aerosol - generating device and the heating element is ferrite or austenite, the working process is to insert an iron rod (i.e., the heating element) into the coil. Its self - inductance coefficient will increase because the iron rod will be magnetized. After the coil is energized, the magnetic induction intensity inside the electromagnet composed of the coil and the iron rod will increase. For the same current, the magnetism of the electromagnet will be enhanced. Then, when the temperature of the iron rod rises, the thermal motion of molecules will be enhanced, and the orderliness of magnetic moments will decrease. At this time, the magnetism of the electromagnet (coil + iron rod) will weaken, and the self - inductance coefficient will decrease.

[0042] Self - inductance coefficient calculation formula:

[0043] L=(u*S*N 2 ) / I, where

[0044] L - self - inductance coefficient;

[0045] u - magnetic permeability of the medium;

[0046] S - cross-sectional area of the coil;

[0047] N - number of turns of the coil;

[0048] I - length of the coil.

[0049] According to the above formula, during the whole process, S, N, and I remain unchanged throughout the process. The only thing that changes is the magnetic permeability of the medium, that is, the magnetic permeability of the iron rod decreases as its temperature rises. So L will decrease during this process. Then, according to the corresponding relationship between the decrease of L and temperature, the temperature change can be fed back. In other words, by detecting the value of L, the temperature value can be detected without setting a temperature detection element.

[0050] (2) When a temperature detection element is set in the aerosol generating device, the material of the heating element is not limited. The working process further refers to the electromagnetic induction law and Lenz's law. The relationship between the inductance of the inductive element and the current and voltage is as follows:

[0051] U(t) = L * (di(t) / dt), where,

[0052] U(t) is the voltage value;

[0053] di(t) / dt is the differential of the current with respect to time.

[0054] Among them, U(t) and di(t) / dt can be obtained through sensors. Therefore, the value of L can be obtained to indirectly feed back the temperature.

[0055] Reference Figure 1 、 Figure 3 and Figure 4 , a temperature detection element 7 is provided on the support member 5. The temperature detection element 7 is in contact with the heating element 4 and is in electrical contact with the electrical connection contact point.

[0056] Reference Figure 2 , a first fixing member 610 and a second fixing member 620 are provided on the support member 5. A notch 640 is provided on the second fixing member 620. The temperature detection unit 7 is arranged between the first fixing member 610 and the second fixing member 620. The temperature sensing part 710 of the temperature detection unit 7 is in contact with the heating element 4 through the notch 640.

[0057] Furthermore, a clamping block is also provided on the second fixing member 620 to form a clamping structure with the heating element 4, realizing the detachable connection between the support member 5 and the heating element 4. There is no limitation on the detachable connection here. It can also be a threaded connection or other detachable connection methods.

[0058] Continue to refer to Figure 2, extension portions 720 are provided at both ends of the temperature sensing portion 710 of the temperature detection element 7. When the heating element 4 is connected to the mounting member 2, the extension portions 720 contact the electrical connection contact points through elastic members. At least one of the first fixing member 610 and the second fixing member 620 is provided with a recess 650, and the extension portions 720 are disposed in the recess 650.

[0059] In the embodiments provided by the present invention, as Figure 2 shown, the first fixing member 610 is provided with a recess 650. The mounting manners of the temperature detection element 7 with the first fixing member 610 and the second fixing member 620 include:

[0060] The extension portions 720 at both ends of the temperature sensing portion 710 of the temperature detection element 7 can be inserted from the notch 640, and the extension portions 720 are disposed on the recess 650 of the first fixing member 610;

[0061] It can also be that the extension portions 720 of the temperature detection element 7 are first disposed on the recess 650 of the first fixing member 610, and the temperature sensing portion 710 is maintained at a relative position below the heating element 4, and then the second fixing member 620 is installed. The second fixing member 620 is fixed to the first fixing member 610, and the temperature sensing portion 710 is disposed in the notch 640.

[0062] Referring to Figure 3 and Figure 4 , an operating portion is provided on the support member 5. By operating the operating portion, the heating element 4 can be separated from the mounting member 2. Since the support member 5 is connected to the heating element 4, by operating the operating portion, the support member 5 drives the heating element 4 to be separated from the mounting member 2, so as to be detached from the aerosol generating device.

[0063] Further, referring to Figure 4 , the support member 5 includes a connecting portion 12, and the connecting portion 12 is detachably connected to the second opening 1110.

[0064] Here, the connecting portion 12 can be a spiral structure, a clamping mechanism, etc.

[0065] Further, the second opening 1110 includes a second tapered hole, and at least a part of the connecting portion 12 is adapted to the second tapered hole. Specifically, referring to Figure 1 , along the first direction A, the aperture of the second tapered hole gradually decreases, so that when at least a part of the connecting portion 12 is adapted to the second tapered hole, it is possible to prevent the e-liquid or other contaminants in the aerosol generating device from leaking out of the second tapered hole to pollute the external environment.

[0066] Referring to Figure 1 and Figure 4, the aerosol generating device further includes a fastener 18 sleeved on the heating element 4. The fastener 18 is also provided with a card slot 180, which can be engaged with the card block 630 on the second fixing member 620 to further fasten the position of the heating element and ensure the perpendicularity of the heating element.

[0067] Reference Figure 4 , at the first opening 1210 of the housing 1, there is a cover plate 10. The cover plate 10 is arranged above the coil bracket 8 and is rotatably connected to the top plate 120 of the housing 1. When it is necessary to insert the aerosol generating matrix into the aerosol generating device, rotate the cover plate 10 away from the first opening 1210. After use, rotate the cover plate 10 to cover the first opening 1210 again.

[0068] Furthermore, reference Figure 4 , the aerosol generating device further includes: a coil heat shrink film 11, which is coated on the outside of the electromagnetic coil 9.

[0069] In another embodiment provided by the present invention, when the heating method of the aerosol generating device is internal heating, a metal wire or a conductive track is provided inside the heating element.

[0070] Reference Figure 1 and Figure 4 , when the detachable connection method between the connecting portion 12 of the support member 5 and the second opening 1110 is a spiral structure, the operating portion includes: a U-shaped handle 13. The end of the U-shaped handle 13 is provided with a first through hole 14 perpendicular to the first direction A. The connecting portion 12 of the support member 5 is provided with a second through hole 15 perpendicular to the first direction A. The U-shaped handle 13 is connected to the support member 5 through a fixing pin 16.

[0071] Specifically, the user holds the U-shaped handle 13 and rotates it until the connecting portion 12 is completely separated from the bottom plate 110. At this time, the heating element 4 and the support member 5 are taken out of the aerosol generating device as a whole through the U-shaped handle 13.

[0072] The operating portion is not limited to this. It can also include an interface combined with an auxiliary disassembly tool. Under the condition of ensuring the integrity of the device, the auxiliary disassembly tool can be combined with the interface of the operating portion to disassemble the heating element from the device for cleaning.

[0073] Reference Figure 3 , the elastic member 22 is on the sub-board PCB 20. The sub-board PCB 20 is electrically connected to the main board PCBA 21. The extension portion 720 of the temperature detection element 7 is assembled and embedded on both sides of the first fixing member 610 to realize the electrical connection of the aerosol generating device.

[0074] Specifically, while the elastic member 22 is arranged to achieve electrical connection, based on the elastic characteristics of the elastic member 22, the elastic member 22 can also further assist in adjusting the position of the heating element 4 along the first direction A, so that the heating element 4 is suitable for heating aerosol generating substrates with different lengths or sizes.

[0075] refer to Figure 1 and Figure 4 The aerosol generating device further comprises: a battery 19 for providing the power required for heating the aerosol generating substrate; and a button 17 for starting the aerosol generating device.

[0076] Another embodiment of the present invention provides an aerosol generating system, comprising: the above-mentioned aerosol generating device; an aerosol generating substrate, wherein the aerosol generating device is used to heat the aerosol generating substrate. In the aerosol generating system, the heating element and the heating chamber can be thoroughly cleaned, thereby having a good cleaning effect, being convenient for users to use, having a good inhalation experience, and also ensuring the consistency of aerosol release.

[0077] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An aerosol generating device, characterized in that, the device comprises: a housing, the housing includes a first opening, a second opening and a mounting member located between the first opening and the second opening, the first opening and the second opening are provided at both ends of the housing, and electrical connection contacts are provided on the mounting member; a heating element, the heating element is connected to the housing through the mounting member and can be used to heat an aerosol-forming substrate located in a heating chamber, and the aerosol-forming substrate can be placed into the heating chamber through the first opening; a support member, the support member is connected to the heating element and can detach the heating element from the mounting member, the support member is provided with a first fixing member and a second fixing member, at least one of the first fixing member and the second fixing member is provided with a recess, and the second fixing member is provided with a notch; a temperature detection element is provided on the support member, the temperature detection element is arranged between the first fixing member and the second fixing member, a temperature sensing part of the temperature detection element contacts the heating element through the notch, extension parts are arranged at both ends of the temperature sensing part of the temperature detection element, the extension parts are arranged in the recesses, and when the heating element is connected to the mounting member, the extension parts are in electrical contact with the electrical connection contacts through elastic members; the heating element can be detached from the housing through the second opening.

2. The aerosol generating device according to claim 1, characterized in that, the support member is detachably connected to the heating element.

3. The aerosol generating device according to claim 2, characterized in that, the mounting member includes a first tapered hole, and at least a part of the second fixing member for mounting the heating element is adapted to the first tapered hole.

4. The aerosol generating device according to any one of claims 1-3, characterized in that, an operation part is provided on the support member, and the heating element can be separated from the mounting member by operating the operation part.

5. The aerosol generating device according to claim 4, characterized in that, the support member includes a connecting part, and the connecting part is detachably connected to the second opening.

6. The aerosol generating device according to claim 5, characterized in that, the second opening includes a second tapered hole, and at least a part of the connecting part is adapted to the second tapered hole.

7. The aerosol generating device according to any one of claims 1-3, characterized in that, the device further includes a coil holder and an electromagnetic coil, the electromagnetic coil is arranged on the coil holder, and the coil holder is detachably installed at the first opening end of the housing; electrical connection contacts are also provided on the coil holder, and when the coil holder is installed on the housing, the electrical connection contacts can be electrically connected to a control unit of the device.

8. The aerosol generating device according to claim 2, characterized in that, the device further includes a fastener sleeved on the heating element.

9. An aerosol generating system, characterized in that, comprises: an aerosol generating device according to any one of claims 1-8; An aerosol generating substrate, and the aerosol generating device is used to heat the aerosol generating substrate.

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