Aerosol generating device

Abstract

The embodiment of the utility model relates to the technical field of aerosol generating devices, and particularly discloses an aerosol generating device which comprises a shell, a battery box and a battery, the near end of the shell is provided with an insertion opening allowing an aerosol generating product to be inserted, the battery box is arranged in the shell, a containing cavity is formed in the battery box, the near end of the battery box is provided with a top wall defining part of the boundary of the containing cavity, and the far end of the battery box is provided with a bottom wall defining part of the boundary of the containing cavity. The wall thickness of the bottom wall is smaller than that of other parts of the battery box; and the battery is at least partially accommodated in the accommodating cavity. Through the mode, the wall thickness of the bottom wall of the battery box is smaller than the wall thickness of other parts of the battery box, so that the bottom wall is easy to damage when the pressure of the battery is released, high-temperature gas and battery liquid are released through the bottom wall, and the use safety can be improved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of aerosol generating devices, and in particular to an aerosol generating device. Background Art

[0002] The aerosol generating device is used to heat the tobacco product to generate an aerosol for the user to inhale. In an exemplary aerosol generating device, a battery and a battery box for accommodating the battery are included. When the user uses the aerosol generating device, the top wall of the battery box faces the user's face and the bottom wall faces the ground. When the battery is depressurized, the battery will release high-temperature gas and battery fluid. When the battery is depressurized, if the high-temperature gas and battery fluid are sprayed from the top wall, it is easy to cause injury. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide an aerosol generating device, which can effectively solve the problem that the battery of the aerosol generating device is prone to causing injuries when the pressure is released.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an aerosol generating device, comprising:

[0005] The housing has a proximal end provided with an insertion port for inserting the aerosol generating article;

[0006] A battery box is arranged in the housing, the battery box has a receiving cavity, and the proximal end of the battery box has a top wall defining a portion of the receiving cavity, and the distal end of the battery box has a bottom wall defining a portion of the receiving cavity, and the wall thickness of the bottom wall is less than the wall thickness of other parts of the battery box;

[0007] A battery is at least partially accommodated in the accommodation cavity.

[0008] In some embodiments, the bottom wall has a thickness of less than 1 mm.

[0009] In some embodiments, the bottom wall is provided with a pressure relief hole.

[0010] In some embodiments, the pressure relief hole has one or more, and the total area of ​​the pressure relief holes on the bottom wall is greater than or equal to one half of the cross-sectional area of ​​the battery.

[0011] In some embodiments, the aerosol generating device comprises a thermal insulator comprising a first portion disposed between the positive electrode of the battery and the top wall.

[0012] In some embodiments, the aerosol generating device includes a temperature sensor connected to the first surface of the battery, the temperature sensor is used to detect the temperature of the battery, and the thermal insulation element includes a second part, the second part is arranged against the first surface and covers the temperature sensor.

[0013] In some embodiments, the thermal insulation member includes a third portion, and the third portion is adhered to the second surface of the battery;

[0014] The aerosol generating device further comprises a shockproof member, wherein the shockproof member abuts against the second surface;

[0015] The battery box also includes a rear wall connecting the bottom wall and the top wall. The side of the battery box opposite to the rear wall is open to allow the battery to be loaded into the accommodating cavity. When the battery is accommodated in the accommodating cavity, the second surface is arranged opposite to the rear wall.

[0016] In some embodiments, the aerosol generating device includes a cover sheet, which covers the pressure relief hole and is detachably bonded to a side of the bottom wall facing away from the accommodating cavity, so as to be detached from the bottom wall to expose the pressure relief hole when the battery releases pressure.

[0017] In some embodiments, the insulation comprises aerogel or foam.

[0018] In some embodiments, the positive pole of the battery is disposed toward the top wall.

[0019] In order to solve the above technical problems, another technical solution adopted by the utility model is: to provide an aerosol generating device, including a shell, a battery box and a battery; the battery box is arranged in the shell, the battery box has a accommodating cavity and the battery box includes a bottom wall that defines a partial boundary of the accommodating cavity, and the wall thickness of the bottom wall is less than the wall thickness of other parts of the battery box; the battery is at least partially accommodated in the accommodating cavity, and the negative pole of the battery is arranged toward the bottom wall.

[0020] In the embodiment of the utility model, since the wall thickness of the bottom wall of the battery box is smaller than the wall thickness of other parts of the battery box, the bottom wall is easily damaged when the battery is depressurized, allowing high-temperature gas and battery fluid to leak out through the bottom wall, thereby improving safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of an aerosol generating device according to an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the explosion structure of the aerosol generating device of the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the battery box of the aerosol generating device of the embodiment of the utility model;

[0025] Figure 4 It is a schematic structural diagram of the shell of the aerosol generating device of an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 100. Aerosol generating device;

[0028] 1. Shell; 11. Insertion port; 12. Side wall; 13. Cover plate; 14. Groove;

[0029] 2. Battery box; 21. Accommodation cavity; 22. Bottom wall; 221. Pressure relief hole; 222. Reinforcement ribs; 23. Top wall; 24. Rear wall;

[0030] 3.Battery;

[0031] 4. Cover plate; 41. Through hole;

[0032] 5. thermal insulation; 51. first part; 52. second part; 53. third part;

[0033] 6. Temperature sensor;

[0034] 7. Shockproof parts;

[0035] 8. Heating element. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "locked to" another element, it can be directly on the other element, or there can be one or more centered elements between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements between them. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0038] See also Figure 1 and Figure 2 , an embodiment of the present application provides an aerosol generating device 100, including a housing 1, a battery box 2 and a battery 3.

[0039] The proximal end of the housing 1 is provided with an insertion port 11 for inserting the aerosol generating product. It should be noted that when the user inhales the aerosol generating product, the proximal end of the housing 1 is the end close to the user's mouth. The housing 1 includes a side wall 12 and a cover plate 13 provided at the proximal end of the side wall 12. Figure 2 In the illustrated embodiment, the housing 1 is an integrally formed structure; in other examples, the side wall 12 and the cover plate 13 are formed independently and then assembled to form the housing 1 .

[0040] The battery box 2 is arranged in the housing 1. The battery box 2 has a receiving cavity 21. The battery box 2 includes a bottom wall 22 defining a portion of the boundary of the receiving cavity 21 and a top wall 23 defining a portion of the boundary of the receiving cavity 21. The bottom wall 22 and the top wall 23 are arranged opposite to each other. Specifically, the top wall 23 is located at the proximal end of the battery box 2, and the bottom wall 22 is located at the distal end of the battery box 2. Relative to the bottom wall 22, there is a smaller spacing between the top wall 23 and the cover plate 13, and the top wall 23 can even abut the cover plate 13. The aerosol generating device 100 also includes a heating element 8, which is arranged in the housing 1 and is used to heat the aerosol generating product so that the aerosol generating product generates an aerosol for the user to inhale. In one example, the heating element 8 is arranged between the top wall 23 and the cover plate 13; in one example, the heating element 8 is arranged on one side of the battery box 2.

[0041] The thickness of the bottom wall 22 is smaller than the thickness of other parts of the battery box 2; at least part of the battery 3 is contained in the containing cavity 21, and the battery 3 can be any suitable battery, for example, the battery is a rechargeable battery, and can be charged by being electrically connected to an external power source, and of course, the battery 3 can also be disposable. Since the thickness of the bottom wall 22 of the battery box 2 is smaller than the thickness of other parts of the battery box 2, that is, the structural strength of the bottom wall 22 is smaller than the structural strength of other parts of the battery box 2, when the user uses the aerosol generating device 100 and the battery 3 is depressurized, the bottom wall 22 is the weakest, and thus can be quickly broken or melted under the pressure or temperature generated by the depressurization of the battery 3, to release the pressure inside the battery box 2, to prevent the depressurized substances such as high-temperature battery fluid and high-temperature gas from leaking from the top wall 23 and spraying toward the user, to avoid the situation where injuries are likely to occur, thereby improving the safety of use.

[0042] In one example, the thickness of the bottom wall 22 is less than 1 mm, so that the thickness of the bottom wall 22 is weak, reducing the structural strength of the bottom wall 22 , thereby making the bottom wall 22 easily and quickly destroyed when the battery 3 releases pressure.

[0043] In some embodiments, see Figure 3 The bottom wall 22 is provided with a pressure relief hole 221, which is connected to the accommodating chamber 21, so that the high-temperature gas and battery liquid can be released through the pressure relief hole 221. The pressure relief hole 221 is not only conducive to reducing the structural strength of the bottom wall 22, but also can directly release pressure before the bottom wall 22 is destroyed and during the process of the bottom wall 22 being destroyed, so that the pressure relief is more timely. In one example, there can be one or more pressure relief holes 221, and the total area of ​​the pressure relief holes 221 on the bottom wall 22 can be greater than or equal to one-half of the cross-sectional area of ​​the battery 3. In such a case, Figure 3 In the illustrated embodiment, there are two pressure relief holes 221 , namely a first pressure relief hole 221 and a second pressure relief hole 221 , and a rib 222 is disposed between the first pressure relief hole 221 and the second pressure relief hole 221 .

[0044] The shape of the pressure relief hole 221 can be any suitable one or more shapes such as a strip, a circle, an ellipse, etc.

[0045] In some embodiments, see Figure 2 The aerosol generating device 100 further includes a cover sheet 4, which covers the pressure relief hole 221 and can be detached from the side of the bottom wall 22 facing away from the accommodating chamber 21, so as to be detached from the bottom wall 22 to expose the pressure relief hole 221 when the battery 3 releases pressure. Specifically, when the battery 3 releases pressure, the pressure relief substance such as gas or battery fluid impacts the cover sheet 4, and the cover sheet 4 is therefore detached from the bottom wall 22, so that the pressure relief hole 221 is opened.

[0046] The cover sheet 4 is disposed at the distal end of the housing 1. Specifically, the cover sheet 4 can be connected to the distal end of the side wall 12 of the housing 1, and the lower surface of the cover sheet 4 can constitute at least a portion of the bottom surface of the aerosol generating device 100. The cover sheet 4 has the function of hiding the bottom wall 22 and having a decorative effect. Figure 2 In the illustrated embodiment, the cover sheet 4 has a through hole 41 , and the charger can be inserted into the charging interface in the aerosol generating device 100 through the through hole 41 to charge the battery 3 .

[0047] In one example, the cover sheet 4 can be detachably bonded to the side of the bottom wall 22 facing away from the accommodating cavity 21 by adhesives such as double-sided adhesive and hot melt adhesive.

[0048] It should be noted that the pressure relief holes 221 provided on the bottom wall 22 can reduce the bonding area between the cover sheet 4 and the bottom wall 22. The larger the total area of ​​the pressure relief holes 221, the easier it is for the cover sheet 4 to separate from the bottom wall 22 when the battery 3 releases pressure. In order to prevent the cover sheet 4 from separating from the bottom wall 22 in daily use, the total area of ​​the pressure relief holes 221 on the bottom wall 22 can be greater than or equal to one-half of the cross-sectional area of ​​the battery 3. It is preferred that there are at least two pressure relief holes 221 on the bottom wall 22, and there is a rib 222 between two adjacent pressure relief holes 221, and the cover sheet 4 is adhered to the rib 222.

[0049] In some embodiments, see Figure 4 A groove 14 is provided at the distal end of the shell 1, and the groove 14 is connected to the pressure relief hole 221. The groove 14 accommodates the cover sheet 4 to prevent the cover sheet 4 from at least partially protruding from the shell 1, thereby preventing the cover sheet 4 from colliding and falling off, causing the pressure relief hole 221 to open, and making the aerosol generating device 100 beautiful as a whole.

[0050] In some embodiments, see Figure 2 The aerosol generating device 100 includes a heat insulating member 5 , and the heat insulating member 5 includes a first portion 51 . The first portion 51 is disposed between the battery 3 and the top wall 23 , that is, the first portion 51 separates the battery 3 from the top wall 23 , and the first portion 51 can connect the battery 3 and the top wall 23 .

[0051] In one example, the positive electrode of the battery 3 is arranged toward the top wall 23. When a chemical reaction occurs inside the battery 3, the positive electrode region of the battery 3 is the main region of the chemical reaction. The positive electrode region of the battery 3 is more likely to accumulate heat and gas, and the positive electrode region of the battery 3 is easily damaged. Therefore, when the temperature of the battery 3 rises sharply, a large amount of heat and high-temperature gas accumulates in the positive electrode region of the battery 3, so that when the battery 3 cannot withstand the pressure and releases pressure, the high-temperature gas in the battery 3 escapes through the positive electrode of the battery 3. Since the first part 51 is arranged between the battery 3 and the top wall 23, the first part 51 is used to play a heat insulation role. When the temperature of the battery 3 rises sharply, it prevents the heat generated by the battery 3 from being quickly transferred to the top wall 23, so that the top wall 23 can maintain a stable structural strength.

[0052] It should be noted that the first part 51 can also play a role of elastic buffer. When the battery 3 releases pressure, the first part 51 can withstand the impact force of the battery 3 at the moment of pressure release, prevent the impact force of the battery 3 at the moment of pressure release from damaging the top wall 23, and further allow the high-temperature gas and battery fluid to leak out through the bottom wall 22, thereby further improving the safety of use.

[0053] In some embodiments, see Figure 2 The aerosol generating device 100 includes a temperature sensor 6 connected to the first surface of the battery 3, the temperature sensor 6 is used to detect the temperature of the battery 3, and the heat insulating member 5 includes a second portion 52, the second portion 52 covers the temperature sensor 6 and abuts against the first surface of the battery 3, so as to abut the temperature sensor 6 against the first surface, so that the temperature sensor 6 can detect the temperature of the battery 3 more accurately. In one example, the second portion 52 is bonded to the first surface of the battery 3 by an adhesive such as a double-sided adhesive or a hot melt adhesive. In another example, the temperature sensor 6 is an NTC (thermistor).

[0054] In some embodiments, see Figure 2 The heat insulating member 5 includes a third portion 53, the third portion 53 abuts against the second surface of the battery 3, and the third portion 53 is respectively connected and fixed to the first portion 51 and the second portion 52, and the third portion 53 plays a role in heat insulation and shockproof. In one example, the third portion 53 is bonded to the second surface of the battery 3 by an adhesive such as a double-sided adhesive or a hot melt adhesive.

[0055] In some embodiments, see Figure 2The aerosol generating device 100 further includes a shockproof member 7, which is pasted on the second surface of the battery 3, and the shockproof member 7 plays a shockproof role; the battery box 2 includes a rear wall 24 connecting the bottom wall 22 and the top wall 23, and the battery 3 and the side opposite to the rear wall 24 are open, so that the battery 3 can be loaded into the accommodating cavity 21. When the battery 3 is accommodated in the accommodating cavity 21, the second surface and the rear wall 24 are arranged opposite to each other, so that the shockproof member 7 and the third part 53 are arranged between the second surface of the battery 3 and the inner wall of the shell 1, and the shockproof member 7 and the third part 53 fill the gap between the second surface of the battery 3 and the inner wall of the shell 1, thereby playing a shockproof role for the battery 3. In one example, the shockproof member 7 is bonded to the second surface of the battery 3 by an adhesive such as a double-sided adhesive or a hot melt adhesive, and the shockproof member 7 and the third part 53 are respectively located at the distal end and the proximal end of the battery 3. In another example, the shockproof member 7 is made of aerogel or foam, so the shockproof member 7 has elasticity to play a shockproof role.

[0056] In some embodiments, the thermal insulation 5 includes aerogel or foam, that is, the thermal insulation 5 is made of aerogel or foam, so that the thermal insulation 5 has the characteristics of low thermal conductivity, elasticity and flame retardancy, so that the thermal insulation 5 plays a role of heat insulation, flame retardancy and buffering. In one example, the foam can be EPE (pearl cotton) or EPP (Expanded polypropy l ene polypropylene plastic foam material).

[0057] In some embodiments, the battery box 2 is made of plastic. Since the thermal insulation 5 plays a role of insulation and buffering, when the temperature of the battery 3 rises sharply, the thermal insulation 5 blocks the heat generated by the battery 3 from being transferred to the top wall 23 of the battery box 2, preventing the top wall 23 of the battery box 2 from softening or melting, so that the structural strength of the top wall 23 of the battery box 2 remains stable.

[0058] In some embodiments, the negative electrode of the battery 3 is disposed toward the bottom wall 22 , that is, the negative electrode of the battery 3 and the positive electrode of the battery 3 are disposed opposite to each other.

[0059] In the embodiment of the utility model, the aerosol generating device 100 comprises a housing 1, a battery box 2 and a battery 3; the proximal end of the housing 1 is provided with an insertion port 11 for inserting the aerosol generating product, the battery box 2 is arranged in the housing 1, the battery box 2 has a receiving cavity 21, and the proximal end of the battery box 2 has a top wall 23 defining a part of the boundary of the receiving cavity 21, and the distal end has a bottom wall 22 defining a part of the boundary of the receiving cavity 21, the wall thickness of the bottom wall 22 is less than the wall thickness of other parts of the battery box 2; the battery 3 is at least partially received in the receiving cavity 21. Since the wall thickness of the bottom wall 22 of the battery box 2 is less than the wall thickness of other parts of the battery box 2, the bottom wall 22 is easily damaged when the battery 3 is depressurized, so that the high-temperature gas and battery liquid are released through the bottom wall 22, thereby improving the safety of use.

[0060] In an embodiment of the utility model, the aerosol generating device 100 includes a shell 1, a battery box 2 and a battery 3; the battery box 2 is arranged in the shell 1, and has a accommodating cavity 21 in the battery box 2 and the battery box 2 includes a bottom wall 22 that defines a portion of the boundary of the accommodating cavity 21, and the wall thickness of the bottom wall 22 is less than the wall thickness of other parts of the battery box 21; the battery 3 is at least partially accommodated in the accommodating cavity 21, and the negative pole of the battery 3 is arranged toward the bottom wall 22.

[0061] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. An aerosol generating device, characterized in that: include: The housing has a proximal end provided with an insertion port for inserting the aerosol generating article; A battery box is arranged in the housing, the battery box has a receiving cavity, and the proximal end of the battery box has a top wall defining a portion of the receiving cavity, and the distal end of the battery box has a bottom wall defining a portion of the receiving cavity, and the wall thickness of the bottom wall is less than the wall thickness of other parts of the battery box; A battery is at least partially accommodated in the accommodation cavity.

2. The aerosol generating device according to claim 1, characterized in that: The bottom wall has a thickness of less than 1 mm.

3. The aerosol generating device according to claim 1, characterized in that: The bottom wall is provided with a pressure relief hole.

4. The aerosol generating device according to claim 3, characterized in that: The pressure relief holes include one or more, and the total area of ​​the pressure relief holes on the bottom wall is greater than or equal to one half of the cross-sectional area of ​​the battery.

5. The aerosol generating device according to any one of claims 1 to 4, characterized in that: The aerosol generating device comprises a thermal insulator comprising a first portion disposed between the battery and the top wall.

6. The aerosol generating device according to claim 5, characterized in that: The aerosol generating device comprises a temperature sensor connected to the first surface of the battery, the temperature sensor is used to detect the temperature of the battery, and the heat insulating member comprises a second part, the second part is arranged against the first surface and covers the temperature sensor.

7. The aerosol generating device according to claim 6, characterized in that: The heat insulating member comprises a third part, and the third part is adhered to the second surface of the battery; The aerosol generating device further comprises a shockproof member, wherein the shockproof member abuts against the second surface; The battery box also includes a rear wall connecting the bottom wall and the top wall. The side of the battery box opposite to the rear wall is open to allow the battery to be loaded into the accommodating cavity. When the battery is accommodated in the accommodating cavity, the second surface is arranged opposite to the rear wall.

8. The aerosol generating device according to claim 3, characterized in that: The aerosol generating device comprises a cover sheet, which covers the pressure relief hole and is detachably bonded to a side of the bottom wall away from the accommodating cavity, so as to be detached from the bottom wall to expose the pressure relief hole when the battery releases pressure.

9. The aerosol generating device according to claim 5, characterized in that: The thermal insulation element includes aerogel or foam.

10. The aerosol generating device according to claim 1, characterized in that The positive pole of the battery is arranged toward the top wall.

11. An aerosol generating device, characterized in that: include: shell; A battery box is disposed in the housing, the battery box has a receiving cavity and the battery box includes a bottom wall defining a portion of the receiving cavity, the thickness of the bottom wall is smaller than the thickness of other parts of the battery box; A battery is at least partially accommodated in the accommodation cavity, and the negative pole of the battery is arranged toward the bottom wall.

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