Heater and aerosol-generating device
By inserting metal heat conductors into the storage cavity of the ceramic matrix in the heater, the problem of low temperature at the tip of the ceramic tip rod heater is solved, and the heater tip is rapidly heated up, which increases the smoke and pumping of the aerosol Absorb the taste.
Patent Information
- Application Number
- CN202420291911.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-17
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-02-17
AI Technical Summary
The existing ceramic pointed rod heaters are heated at a lower tip temperature, resulting in less smoke and poor taste in the first few puffs of suction.
A heater is designed, including a heating member, a base body and a metal heat conductor. A part of the metal heat conductor is inserted into the receiving cavity of the base body, and the other part is exposed to the end of the base body, and the part stored in the receiving cavity is larger than that of the The length of the portion outside the cavity is to allow the tip of the heater to heat up quickly.
The smoke volume of the first few breaths of aerosol is improved and the suction taste is improved. The performance of the aerosol generation device is improved quickly through the tip of the heater.
Smart Images
Figure CN222303115U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of heating technology, and in particular to a heater and an aerosol generating device. Background Art
[0002] The heater is a part of the aerosol generating device and can be used to heat the aerosol generating article to generate aerosol.
[0003] Most of the heaters in the related art are ceramic pointed rods, and the tip of the ceramic pointed rod cannot be equipped with a circuit. Therefore, when heating, the temperature of the tip of the ceramic pointed rod is lower than that of other parts of the ceramic pointed rod, resulting in less smoke and poor taste in the first few puffs. Utility Model Content
[0004] The embodiments of the present application provide a heater and an aerosol generating device, which can rapidly heat up the tip of the heater to increase the amount of smoke in the first few puffs of aerosol and improve the smoking taste.
[0005] On the one hand, an embodiment of the present application provides a heater, comprising: a heating element, a substrate and a metal heat conductor; the substrate has an elongated shape extending in the axial direction and defines a accommodating cavity therein; the heating element is held on the outer surface and / or the interior of the substrate for generating heat; a portion of the metal heat conductor is inserted into the accommodating cavity, and another portion is exposed to the end of the substrate, and a portion of the metal heat conductor received in the accommodating cavity has a length in a first direction that is greater than a length of a portion located outside the accommodating cavity; wherein the first direction is parallel to the axial direction of the substrate.
[0006] In some embodiments, the metal heat conductor includes a tip portion and an extension portion, at least a portion of the extension portion is inserted into the accommodating cavity, and the tip portion is located outside the accommodating cavity.
[0007] In some embodiments, an outer diameter of the tip portion close to one end of the base along a second direction is greater than an outer diameter of the extension portion; wherein the second direction is perpendicular to the first direction.
[0008] In some embodiments, the outer peripheral surface of the extension portion is connected to the inner surface of the accommodating cavity; and the outer diameter of the extension portion is greater than or equal to half of the outer diameter of the tip portion close to one end of the base.
[0009] In some embodiments, the heating element covers the outer peripheral surface of the substrate along the first direction and at least partially overlaps with the extending portion.
[0010] In some embodiments, the length of the extension portion along the first direction is 2 mm-18 mm.
[0011] In some embodiments, the length of the tip portion along the first direction is 1 mm-3 mm.
[0012] In some embodiments, the heater further includes a flange; the flange is sleeved on the outer circumference of the substrate; the flange and the metal heat conductor are located at two opposite ends of the substrate corresponding to each other.
[0013] In some embodiments, the heating element is attached to the outer peripheral surface of the substrate and is spaced or staggered from the flange.
[0014] On the other hand, an embodiment of the present application provides an aerosol generating device, comprising a chamber for accommodating an aerosol generating product and the above-mentioned heater, wherein the heater at least partially extends into the chamber and has one end of a metal heat conductor as the free end of the heater.
[0015] The beneficial effects of the embodiments of the present application include at least:
[0016] The embodiment of the present application provides a heater and an aerosol generating device, comprising: a heating element, a substrate and a metal heat conductor; the heating element is kept on the outer surface of the substrate and / or inside the substrate to generate heat; and a part of the metal heat conductor is inserted into the receiving cavity of the substrate, and the length of the part received in the receiving cavity in the first direction is greater than the length of the part outside the receiving cavity. Thus, when the heater is working, the tip of the heater can be quickly heated to increase the amount of smoke in the first few puffs of aerosol and improve the taste of the puff. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.
[0018] Figure 1 It is a schematic diagram of the structure of a heater provided in one embodiment of the present application.
[0019] Figure 2 yes Figure 1 A schematic cross-sectional view of the heater is shown.
[0020] Figure 3 yes Figure 1 An exploded schematic diagram of the heater is shown.
[0021] Figure 4 It is a schematic diagram of the structure of a metal heat conductor provided in one embodiment of the present application.
[0022] Figure 5It is a comparison chart of the heating curves of the top of the heater provided in the embodiment of the present application and the heater in the related art under the conditions of the same power and the same time.
[0023] Figure 6 It is a temperature distribution comparison diagram from top to bottom of the heater provided in the embodiment of the present application and the heater in the related art under the conditions of the same power and the same heating time.
[0024] Figure 7 It is a cross-sectional schematic diagram of an aerosol generating device provided in one embodiment of the present application.
[0025] The reference numerals are as follows:
[0026] 1- Heating element;
[0027] 2-base; 21-accommodating cavity;
[0028] 3-metal heat conductor, 31-tip portion, 32-extension portion;
[0029] 4- Flange;
[0030] 10- Heater;
[0031] 100 - aerosol generating device, 101 - chamber.
[0032] Y-first direction, X-second direction. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0034] The terms "first", "second", "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or suggesting the quantity or order of the indicated technical features relative to importance or implicitly indicating. In the embodiments of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship or movement between the components under a certain specific posture (as shown in the accompanying drawings), and if the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or equipment comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.
[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be one or more central elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0037] See also Figure 1 and Figure 2The embodiment of the present application provides a heater 10, comprising: a heating element 1, a substrate 2 and a metal heat conductor 3; the substrate 2 has an elongated shape extending in the axial direction and defines a receiving cavity 21 therein; the heating element 1 is held on the outer surface and / or the inner part of the substrate 2 for generating heat; a portion of the metal heat conductor 3 is inserted into the receiving cavity 21, and another portion is exposed to the end of the substrate 2, and the length of the portion of the metal heat conductor 3 received in the receiving cavity 21 in the first direction Y is greater than the length of the portion located outside the receiving cavity 21; wherein the first direction Y is parallel to the axial direction of the substrate 2. The heating element 1 is held on the outer surface or the inner part of the substrate 2 for generating heat; and a portion of the metal heat conductor 3 is inserted into the receiving cavity 21 of the substrate 2, and the length of the portion received in the receiving cavity 21 in the first direction Y is greater than the length of the portion located outside the receiving cavity 21. Therefore, when the heater 10 is working, the tip of the heater 10 can be heated up quickly to increase the amount of smoke in the first few puffs of aerosol and improve the smoking taste.
[0038] Optionally, the heater 10 can be used to insert an aerosol-generating product and heat the aerosol-generating product so that the aerosol-generating product volatilizes an aerosol for inhalation. An aerosol-generating product refers to a product comprising an aerosol-generating substrate, which is intended to be heated rather than burned to release volatile compounds that can form an aerosol, and when heated, the aerosol-generating substrate releases volatile compounds that can form an aerosol. Compared to the aerosol generated by burning or pyrolytic degradation of the aerosol-forming substrate, the aerosol formed by heating the aerosol-forming substrate may contain fewer known harmful components. The aerosol-generating product may be disposable or reusable. The aerosol-forming substrate may be a solid aerosol-forming substrate. Alternatively, the aerosol-forming substrate may include solid and liquid components. The aerosol-forming substrate may include tobacco and / or non-tobacco materials; or the aerosol-forming substrate may include tobacco-containing materials and / or non-tobacco materials; wherein the tobacco-containing material contains volatile tobacco flavor compounds released from the substrate when heated.
[0039] Optionally, the substrate 2 may refer to a ceramic body or a quartz glass body, etc. The elongated shape may refer to a cylindrical shape, a polyhedral shape, an irregular shape or a sheet shape, etc. The heating element 1 is held on the outer surface and / or the inside of the substrate 2, which means that the heating element 1 may be entirely located on the outer surface of the substrate 2; or the heating element 1 may be entirely located inside the substrate 2 (for example, on the inner wall of the accommodating cavity 21); or the heating element 1 may be partially located on the outer surface of the substrate 2 and partially located inside the substrate 2. When the heating element 1 is partially or entirely located inside the substrate 2, the heating element 1 is spaced or staggered from the metal heat conductor 3 inserted into the accommodating cavity 21 of the substrate 2.
[0040] Optionally, the length of the portion of the metal heat conductor 3 received in the accommodating cavity 21 is greater than the length of the portion located outside the accommodating cavity 21, so that the heating speed of the metal heat conductor 3 can be faster; in addition, the heating speed of the metal heat conductor 3 as a whole can be adjusted by adjusting the length of the metal heat conductor 3 and the depth of the metal heat conductor 3 inserted into the accommodating cavity 21. The deeper the depth of the metal heat conductor 3 inserted into the accommodating cavity 21, the faster the heating speed of the metal heat conductor 3. Because the deeper the insertion depth of the metal heat conductor 3 in the accommodating cavity 21, the more heat is transferred from the substrate 2 heated by the heated element 1 to the metal heating element 1, and thus the heating speed of the metal heater 10 is also faster. Adding a metal heat conductor 3 to the ceramic substrate 2 can improve the low temperature of the head of an ordinary ceramic heating rod, and improve the problem of small suction taste and small amount of smoke caused by the low temperature of the head. In addition, by improving the depth of the metal heat conductor 3 inserted into the accommodating cavity 21, the heating speed of the corresponding height position of the heater 10 can be changed, and the overall temperature uniformity of the heater 10 can be improved.
[0041] In some embodiments, see Figure 1 and Figure 2 The metal heat conductor 3 may include a tip portion 31 and an extension portion 32, at least a portion of the extension portion 32 is inserted into the accommodating cavity 21, and the tip portion 31 is located outside the accommodating cavity 21. Thus, the extension portion 32 can transfer the heat on the substrate 2 to the tip portion 31, so that the temperature of the tip portion 31 rises rapidly.
[0042] Optionally, the extension part 32 and the tip part 31 of the metal heat conductive member 3 may be configured to be both solid; the extension part 32 and the tip part 31 may also be configured to be both hollow; the extension part 32 and the tip part 31 may also be configured to be one solid and the other hollow. For example, the extension part 32 is configured to be solid and the tip part 31 is configured to be hollow. The extension part 32 and the tip part 31 may be connected by welding or bonding.
[0043] In some embodiments, the length of the extension portion 32 inserted into the accommodating cavity 21 can be one-third of the length of the accommodating cavity 21 along the first direction Y, so that on the one hand, the temperature rise speed of the end of the tip portion 31 away from the extension portion 32 can be fast enough and the temperature can be high enough; on the other hand, material costs can be saved.
[0044] In some embodiments, the substrate 2 can be a ceramic substrate 2, and the metal thermal conductor 3 and the ceramic substrate 2 can be connected by threaded connection, bonding with high-temperature resistant adhesive material (for example, the high-temperature resistant adhesive material can be high-temperature glue), or other connection methods such as interference fit.
[0045] In some embodiments, see Figure 1 and Figure 2, the outer diameter of the tip portion 31 near the end of the base 2 along the second direction X is greater than the outer diameter of the extension portion 32; wherein the second direction X is perpendicular to the first direction Y. Exemplarily, the outer diameter of the tip portion 31 along the second direction X may be 1.5 mm-2.5 mm, and the outer diameter of the extension portion 32 along the second direction X may be 0.8 mm-1.5 mm. Thus, when the extension portion 32 is inserted into the accommodating cavity 21 of the base 2, the tip portion 31 may abut against the base 2 and be retained outside the accommodating cavity 21 of the base 2.
[0046] In some embodiments, see Figure 1 and Figure 2 , the outer peripheral surface of the extension part 32 is connected to the inner surface of the accommodating cavity 21; and the outer diameter of the extension part 32 is greater than or equal to half of the outer diameter of the tip part 31 close to the substrate 2. Exemplarily, the outer diameter of the tip part 31 along the second direction X can be 1.5mm-2.5mm, and the outer diameter of the extension part 32 along the second direction X can be 0.8mm-1.5mm; for example, the outer diameter of the tip part 31 along the second direction X is 2mm, and the outer diameter of the extension part 32 along the second direction X can be 1.3mm. On the one hand, it can be more conducive to the heat conduction from the substrate 2 to the metal heat conductor 3; on the other hand, the temperature of the metal heat conductor 3 can be quickly heated to the required temperature.
[0047] In some embodiments, see Figure 1 , Figure 2 and Figure 3 , the heating element 1 covers the outer peripheral surface of the substrate 2 along the first direction Y, and at least partially overlaps with the extension portion 32. The heating element 1 covers the outer peripheral surface of the substrate 2, and the extension portion 32 is inserted into the accommodating cavity 21 of the substrate 2. The extension portion 32 overlaps with the orthographic projection of the heating element 1 on the plane where the first direction Y is located. Exemplarily, the length of the extension portion 32 inserted into the accommodating cavity 21 is one third of the length of the substrate 2, and the heating element 1 covers at least a portion of the outer surface of the substrate 2 near the tip portion 31.
[0048] In some embodiments, see Figure 2 , Figure 3 and Figure 4 , the length of the extension portion 32 along the first direction Y may be 2mm-18mm; exemplarily, the length of the extension portion 32 along the first direction Y may be 2mm, 3mm, 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 16mm or 18mm.
[0049] In some embodiments, see Figure 2 , Figure 3 and Figure 4, the length of the tip portion 31 along the first direction Y may be 1 mm-3 mm; exemplarily, the length of the tip portion 31 along the first direction Y may be 1 mm, 1.2 mm, 1.5 mm, 2 mm, 2.3 mm, 2.5 mm, 2.8 mm or 3 mm.
[0050] In some embodiments, the length of the metal heat conductor 3 in the first direction Y is one third of the length of the substrate 2. Exemplarily, the length of the substrate 2 in the first direction Y is 18 mm, and the length of the metal heat conductor 3 in the first direction Y is 6 mm, wherein the length of the tip portion 31 is 2 mm, the length of the extension portion 32 is 4 mm, the extension portion 32 is completely inserted into the accommodating cavity 21, and the outer surface of the extension portion 32 abuts against the inner surface of the accommodating cavity 21. This can facilitate the heat on the substrate 2 to be transferred to the metal heat conductor 3, and the temperature of the metal heat conductor 3 can be quickly raised to the required temperature.
[0051] In some embodiments, see Figure 1 and Figure 2 The heater 10 may further include a flange 4; the flange 4 is sleeved on the outer circumference of the substrate 2; the flange 4 and the metal heat conductor 3 are located at two opposite ends of the substrate 2. The flange 4 is located at the end of the substrate 2 of the heater 10 away from the metal heat conductor 3, and the flange 4 is sleeved on the outer circumference of the substrate 2. A portion of the substrate 2 is located between the flange 4 and the metal heat conductor 3, a portion of the substrate 2 is located at the end of the flange 4 away from the metal heat conductor 3, and the length of the portion of the substrate 2 located between the flange 4 and the heat conductor in the first direction Y is greater than the length of the portion of the substrate 2 located at the end of the flange 4 away from the metal heat conductor 3. The flange 4 can be used to fix the substrate 2. The flange 4 and the substrate 2 can be connected by interference fit, bonding with high temperature resistant materials, or threaded connection.
[0052] In some embodiments, see Figure 1 and Figure 2 The heating element 1 can be attached to the outer peripheral surface of the substrate 2 and be spaced or staggered from the flange 4; thereby preventing the flange 4 from directly contacting the heating element 1 and dispersing the heat generated by the heating element 1, causing heat energy loss, and reducing the heating rate of the substrate 2 and the metal heat conductor 3.
[0053] In some embodiments, see Figure 1, the length of the heating element 1 in the first direction Y is greater than half of the length of the substrate 2 in the first direction Y, and the heating element 1 is attached to the outer peripheral surface of the substrate 2 near the end of the metal heat conductor 3. Exemplarily, the length of the substrate 2 along the first direction Y can be 12mm, 13mm, 14mm, 15mm, 16mm, 17mm or 18mm; and the length of the heater 10 in the first direction Y can be 6.5mm, 7mm, 8mm, 8.5mm, 9mm, 10mm, 11mm or 12mm. In some embodiments, the length of the substrate 2 along the first direction Y is 16mm, the length of the heater 10 along the first direction Y is 10mm, and the heating element 1 is attached to the 10mm long outer peripheral surface of the substrate 2 near the end of the metal heat conductor 3.
[0054] In some embodiments, see Figure 5 , Figure 5 It is a comparison chart of the heating curves of the heater 10 provided in the embodiment of the present application and the top of the heater in the related art under the conditions of the same power and the same time. The horizontal axis is the heating time, and the vertical axis is the temperature reached by the top of the heater 10 (that is, the end of the tip 31 away from the extension 32). The heater in the related art is generally an ordinary ceramic needle (the ordinary ceramic needle can be a ceramic needle in which the top of the ceramic needle and the body of the ceramic needle are integrated), while the heater in the embodiment of the present application can be a split ceramic needle. Figure 5 The split ceramic needle is the heater 10 composed of the base 2, the heating element 1 and the metal heat conducting element 3 in the embodiment of the present application. Figure 5 It can be concluded that the temperature of the top of the heater 10 provided in the embodiment of the present application is significantly higher than the temperature of the top of the ordinary ceramic needle, and the heating rate of the top of the heater 10 provided in the embodiment of the present application is significantly faster than the heating rate of the ordinary ceramic needle, so that the temperature of the tip of the heater 10 can quickly reach the temperature required for heating the aerosol generating product, and heat the aerosol generating product to increase the smoke volume of the first few puffs of aerosol and improve the smoking taste.
[0055] In some embodiments, see Figure 6 , Figure 6 It is a temperature distribution comparison diagram from top to bottom of the heater 10 provided in the embodiment of the present application and the heater in the related art under the conditions of the same power and the same heating time. The horizontal axis is the distance from a certain position on the heater 10 to the top of the heater 10, and the vertical axis is the temperature reached at this time. The heater in the related art is generally an ordinary ceramic needle (the ordinary ceramic needle can be a ceramic needle in which the top of the ceramic needle and the body of the ceramic needle are integrated), while the heater 10 in the embodiment of the present application can be a split ceramic needle. Figure 6 The split ceramic needle is the heater 10 composed of the base 2, the heating element 1 and the metal heat conducting element 3 in the embodiment of the present application. Figure 5 and Figure 6 It can be concluded that the temperature of the heater 10 provided in the embodiment of the present application from the top to the point 14 mm away from the top is greater than the temperature of the ordinary ceramic needle, the top temperature of the heater 10 provided in the embodiment of the present application is higher, the overall heating speed is faster, and the overall temperature of the heater 10 is more uniform. Therefore, the temperature of the tip of the heater 10 can quickly reach the temperature required for heating the aerosol generating product, and the aerosol generating product can be heated to increase the amount of smoke in the first few puffs of aerosol and improve the smoking taste.
[0056] In some embodiments, see Figure 1 , Figure 2 and Figure 7 The aerosol generating device 100 includes a chamber 101 for accommodating an aerosol generating product and the above-mentioned heater 10, wherein the heater 10 at least partially extends into the chamber 101 and has one end of the metal heat conductor 3 as the free end of the heater 10. When the aerosol generating product is inserted into the chamber 101, a part of the heater 10 is inserted into the end of the aerosol generating product close to the flange 4, thereby heating the aerosol generating product to generate an aerosol. By arranging the metal heat conductor 3 at the end of the substrate 2 as the free end of the heater 10, when the heater 10 is working, the tip of the heater 10 can be quickly heated to reach the temperature required for heating the aerosol generating product, and the aerosol generating product is heated to increase the amount of smoke in the first few puffs of aerosol and improve the smoking taste.
[0057] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application, but are not limited to the embodiments described in the specification. Furthermore, it is possible for a person of ordinary skill in the art to make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to the present application.
Claims
1. A heater for an aerosol generating device, characterized in that: include: Heating element, substrate and metal heat conducting element; The base body has an elongated shape extending in the axial direction and defines a receiving cavity therein; The heating element is held on the outer surface and / or inside of the substrate to generate heat; A portion of the metal heat conductor is inserted into the accommodating cavity, and another portion is exposed at the end of the base, and a length of the portion of the metal heat conductor received in the accommodating cavity in a first direction is greater than a length of a portion located outside the accommodating cavity; Wherein, the first direction is parallel to the axial direction of the substrate; The heater further comprises a flange; The flange is sleeved on the outer periphery of the base; The flange and the metal heat conductor are located at two opposite ends of the base body correspondingly.
2. The heater according to claim 1, characterized in that The metal heat conductor comprises a tip portion and an extension portion, at least a portion of the extension portion is inserted into the accommodating cavity, and the tip portion is located outside the accommodating cavity.
3. The heater according to claim 2, characterized in that The outer diameter of the tip portion close to one end of the base along the second direction is greater than the outer diameter of the extension portion; The second direction is perpendicular to the first direction.
4. The heater according to claim 3, characterized in that The outer peripheral surface of the extension portion is connected to the inner surface of the accommodating cavity; Furthermore, the outer diameter of the extension portion is greater than or equal to half of the outer diameter of the tip portion close to one end of the base.
5. The heater according to claim 2, characterized in that The heating element covers the outer peripheral surface of the base body along the first direction and at least partially overlaps with the extending portion.
6. The heater according to claim 2, characterized in that The length of the extension portion along the first direction is 2 mm-18 mm.
7. The heater according to claim 2, characterized in that The length of the tip portion along the first direction is 1 mm-3 mm.
8. The heater according to claim 1, characterized in that The heating element is attached to the outer peripheral surface of the substrate and is spaced or staggered from the flange.
9. An aerosol generating device, characterized in that: The invention comprises a chamber for containing an aerosol generating article and a heater according to any one of claims 1 to 8, wherein the heater at least partially extends into the chamber and has one end of a metal heat conductor as a free end of the heater.