WO2025152722A1 - Heating appliance having rotatable heating element - Google Patents

Abstract

A heating appliance having a rotatable heating element (100) for heating an aerosol-generating substance (2) of a cigarette (1). The heating appliance comprises a heating element (100) and a heating cavity (200). A heating section (110) of the heating element (100) is located inside the heating cavity (200) and is rotatable relative to the heating cavity (200) to heat the aerosol-generating substance (2) that is located in the heating cavity (200) and is in contact with the heating section (110). Rotating the heating element (100) relative to the heating cavity (200) can prevent the heating element (100) from adhering to the aerosol-generating substance (2) during heating of the aerosol-generating substance (2), avoiding heat concentration and preventing the local aerosol-generating substance (2) from overheating and producing a burnt odor, and thus achieving uniform heating of the aerosol-generating substance (2). When the cigarette (1) is used up, rotating the heating element (100) can further prevent the heating element (100) from adhering to the aerosol-generating substance (2), making it easier to remove the cigarette (1), and thus avoiding the inconvenience of removing the cigarette (1) caused by the adhesion between the heating element (100) and the aerosol-generating substance (2).

Description

A heating device having a rotatable heating element

This application claims the priority of the Chinese patent application filed with the China Patent Office on January 18, 2024, with application number 202410073391.3 and invention name “A heating device with a rotatable heating element”, the entire contents of which are incorporated by reference into this application.

Technical Field

The invention relates to the technical field of cigarette heating, and in particular to a heating device with a rotatable heating element.

Background Art

Most of the heating devices currently use the inner core heating method. A central heating element is built into the heating device. When in use, the cigarette is inserted into the device, and the heating element extends into the smoking section of the cigarette and contacts the smoking substance. The heating element heats and bakes the cigarette for the user to inhale. After the inhalation is over, the heating element will adhere to the smoking substance. Therefore, when the cigarette is taken out, the smoking substance will be affected by the adhesion force of the heating needle, causing the smoking substance to fall into the heating chamber, which is very inconvenient.

Therefore, how to avoid the problem that the heating element will stick to the smoke-generating substance and cause inconvenience in taking out the cigarette is a technical problem that technical personnel in this field need to solve at present.

Summary of the invention

The object of the present invention is to provide a heating device with a rotatable heating element, which can avoid the problem that the heating element adheres to the smoking material and causes inconvenience in taking out the cigarette.

To achieve the above object, the present invention provides the following technical solutions:

A heating device with a rotatable heating element is used to heat the smoking material of a cigarette. The heating device comprises a heating element and a heating chamber. The heating section of the heating element is located inside the heating chamber and can rotate relative to the heating chamber to heat the smoking material located in the heating chamber and contacting the heating section.

Preferably, the heating device also includes a transmission assembly and an electronic control system. The end of the heating element facing away from the heating section is provided with a flange support section and an electrical connection section. The bracket gear is clamped on the outer periphery of the flange support section and connected to the transmission assembly to drive the heating element to rotate. The electrical connection section is connected to the electronic control system and is used for the heating element to heat the smoke-generating substance.

Preferably, the bracket gear includes a gear portion and a column portion which are fixedly connected, and a cavity structure adapted to the flange support section is provided inside the gear portion so that the flange support section limits the bracket gear from moving axially thereof, and the column portion surrounds the outer periphery of the heating element.

Preferably, the transmission assembly includes a motor, a transmission shaft and a transmission gear. The motor can drive the transmission shaft to rotate, so that the transmission gear connected to the transmission shaft rotates, which is used to drive the gear part and the heating element to rotate.

Preferably, the electrical connection section comprises an intermediate contact and an annular contact, wherein the intermediate contact and the annular contact are respectively located in the axial direction and the circumferential direction of the electrical connection section to ensure that the heating element maintains connection with the electrical control system when rotating.

Preferably, the heating device further comprises a power source for supplying power to the motor and the electric control system so that the heating element can rotate and heat.

Preferably, a bearing is sleeved on the outer periphery of the column.

Preferably, the support gear and the heating element are coaxially arranged.

Preferably, the support gear and the heating element are fixed by colloid.

Preferably, the colloid is ceramic glue.

With respect to the above-mentioned background technology, the heating device with a rotatable heating element provided by the present invention is used to heat the smoking material of a cigarette. The heating device includes a heating element and a heating chamber. The heating section of the heating element is located inside the heating chamber and can rotate relative to the heating chamber to heat the smoking material located in the heating chamber and contacting the heating section.

Specifically, by rotating the heating element relative to the heating chamber, the heating element can be prevented from sticking to the smoking material during the heating process, thereby avoiding heat concentration, avoiding overheating of local smoking materials and producing a burnt smell, and achieving uniform heating of the smoking material; when the cigarette is used up, the heating element can be rotated to further prevent the heating element from sticking to the smoking material, making it easier to take out the cigarette, thereby avoiding the problem of the heating element sticking to the smoking material and making it inconvenient to take out the cigarette.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

FIG1 is a schematic structural diagram of a heating device provided in an embodiment of the present invention;

FIG2 is a schematic structural diagram of a heating device provided by an embodiment of the present invention in a state of use;

FIG3 is a cross-sectional view of the structure of a heating device provided by an embodiment of the present invention;

FIG4 is a schematic structural diagram of the transmission assembly and the bracket gear connection provided by an embodiment of the present invention;

FIG5 is a schematic diagram of the structure of a heating element provided in an embodiment of the present invention;

FIG6 is a schematic structural diagram of a heating element provided by an embodiment of the present invention from another perspective;

FIG7 is a schematic diagram of the structure of a bracket gear provided in an embodiment of the present invention;

FIG8 is a schematic structural diagram of a bearing provided in an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a transmission shaft and a transmission gear provided in an embodiment of the present invention.

in:
1-cigarette, 2-smoking substance;
100-heating element, 110-heating section, 120-flange support section, 130-electrical connection section, 131-middle contact, 132-annular contact;
200-heating chamber;
300-transmission assembly, 310-motor, 320-transmission shaft, 330-transmission gear;
400-Electronic control system;
500-bracket gear, 510-gear portion, 520-column portion, 530-bearing;
600 - Power supply.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

In the description of the present invention, it is necessary to understand that the terms "up", "down", "top", "bottom", "left" and "right" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the position or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation of the present invention.

The object of the present invention is to provide a heating device with a rotatable heating element, which can avoid the problem that the heating element adheres to the smoking material and causes inconvenience in taking out the cigarette.

To achieve the above object, the present invention provides the following technical solutions:

Please refer to Figure 1. This embodiment provides a heating device with a rotatable heating element, which is used to heat the smoke-generating material 2 of a cigarette 1. The heating device includes a heating element 100 and a heating chamber 200. The heating section 110 of the heating element 100 is located inside the heating chamber 200 and can rotate relative to the heating chamber 200 to heat the smoke-generating material 2 located in the heating chamber 200 and contacting the heating section 110.

Please refer to Figure 2. It can be understood that the heating device includes a heating chamber 200 for accommodating the cigarette 1. The heating section 110 of the heating element 100 extends into the heating chamber 200 and is inserted into the tobacco section of the cigarette 1 to heat the smoking substance 2.

Please refer to Figure 3. Specifically, by rotating the heating element 100 relative to the heating chamber 200, the heating element 100 will not stick to the smoking material 2 during the heating of the smoking material 2, thereby avoiding heat concentration, avoiding local overheating of the smoking material 2 and generating a burnt smell, and achieving uniform heating of the smoking material 2; when the cigarette 1 is used up, the heating element 100 can be rotated to further prevent the heating element 100 from sticking to the smoking material 2, making it easier to take out the cigarette 1, thereby avoiding the problem of the heating element 100 sticking to the smoking material 2 and causing inconvenience in taking out the cigarette 1.

Please refer to Figures 4 and 5. Preferably, the heating device also includes a transmission assembly 300 and an electronic control system 400. The end of the heating element 100 away from the heating section 110 is provided with a flange support section 120 and an electrical connection section 130. The bracket gear 500 is clamped on the outer periphery of the flange support section 120 and connected to the transmission assembly 300, and is used to drive the heating element 100 to rotate. The electrical connection section 130 is connected to the electronic control system 400, and is used for the heating element 100 to heat the smoking substance 2.

It is understandable that during normal use of the heating device, the user inserts the cigarette 1 into the heating element 100, and the electronic control system 400 supplies power to the heating element 100 through the electrical connection section 130, thereby heating the heating element 100, and then the heating element 100 bakes the smoking substance 2 to produce an aerosol that can be inhaled by the user.

When the smoking process is completed, the electronic control system 400 controls the transmission assembly 300 to rotate the support gear 500 and the heating element 100. During the rotation of the heating element 100, the heating element 100 and the tobacco segment are no longer adhered. In this way, the user can directly pull out the cigarette 1 after the rotation is completed. Since the tobacco segment of the cigarette 1 has been separated from the heating element 100, the smoke-generating substance 2 will not fall into the heating chamber 200 during the process of pulling out the cigarette 1.

It should be noted that the electronic control system 400 can control the rotation time, rotation speed and rotation timing of the heating element 100 during the puffing cycle, and can provide a variety of different heating element 100 rotation heating control logics according to the user's puffing habits and usage experience settings. The heating element 100 rotation heating can be autonomously controlled through a set program, or the heating element 100 rotation heating can be controlled through physical buttons.

Please refer to Figure 7. Preferably, the bracket gear 500 includes a gear portion 510 and a column portion 520 that are fixedly connected. The gear portion 510 is provided with a cavity structure that is adapted to the flange support section 120 so that the flange support section 120 limits the bracket gear 500 from moving axially thereof, and the column portion 520 surrounds the outer periphery of the heating element 100.

In this embodiment, the bracket gear 500 includes two left and right parts, which are embraced and fixed to form a bracket gear 500 having a gear portion 510 and a column portion 520. The interior of the gear portion 510 is provided with a cavity structure adapted to the flange support section 120. The cavity structure cooperates with the flange support section 120 to achieve the positioning and installation of the bracket gear 500. At the same time, the installed flange support section 120 can limit the axial movement of the bracket gear 500 along its own axis.

Please refer to Figure 9. Preferably, the transmission assembly 300 includes a motor 310, a transmission shaft 320 and a transmission gear 330. The motor 310 can drive the transmission shaft 320 to rotate, so that the transmission gear 330 connected to the transmission shaft 320 rotates, which is used to drive the gear part 510 and the heating element 100 to rotate.

It can be understood that the motor 310 drives the transmission shaft 320 to rotate, thereby causing the transmission gear 330 to rotate, wherein the transmission gear 330 is matched and connected with the gear portion 510 of the bracket gear 500, and through the meshing action of the gears, the heating element 100 can rotate, and the electronic control system 400 can control the speed, time, etc. of the rotation of the motor 310.

Please refer to Figure 6. Preferably, the electrical connection section 130 includes an intermediate contact 131 and an annular contact 132. The intermediate contact 131 and the annular contact 132 are respectively located in the axial direction and circumferential direction of the electrical connection section 130 to ensure that the heating element 100 maintains connection with the electrical control system 400 when rotating.

In this embodiment, the electrical connection section 130 of the heating element 100 includes an intermediate contact 131 and an annular contact 132, which are respectively connected to the electrical control system 400 and energized. The intermediate contact 131 and the annular contact 132 are respectively located in the axial and circumferential directions of the electrical connection section 130 to ensure that the heating element 100 remains connected to the electrical control system 400 when rotating.

Preferably, the heating device further comprises a power supply 600, and the power supply 600 is used to supply power to the motor 310 and the electric control system 400, so that the heating element 100 can rotate and heat.

It should be noted that the heating device further includes a power supply 600 for supplying power to the motor 310 and the electric control system 400 . The power supply 600 can ensure the normal operation of the motor 310 and the electric control system 400 .

Please refer to FIG. 8 , preferably, a bearing 530 is sleeved on the outer periphery of the column portion 520 .

In this embodiment, the flange support section 120 is fixed by the bracket gear 500 to form an integrated structure. The heating element 100 bracket includes a column portion 520 and a gear portion 510 arranged upper and lower. The column portion 520 is connected to the heating device housing through a bearing 530. On the one hand, the bearing 530 fixes the heating element 100 to prevent the heating element 100 and the bracket gear 500 from shaking during rotation. On the other hand, the resistance of the heating element 100 and the bracket gear 500 during rotation is small and the rotation is smooth. The gear portion 510 is used for transmission coordination.

Preferably, the support gear 500 and the heating element 100 are coaxially arranged.

The support gear 500 and the heating element 100 are preferably coaxially arranged, and the rotation of the support gear 500 drives the coaxial heating element 100 to rotate accordingly.

It should be noted that the relative positions of the support gear 500 and the heating element 100 can be adjusted according to actual conditions as long as the above purpose can be achieved.

Preferably, the support gear 500 and the heating element 100 are fixed by colloid.

In the above embodiment, after the support gear 500 is installed on the heating element 100, it is reinforced by colloid so that the support gear 500 and the heating element 100 are relatively fixed.

Preferably, the colloid is ceramic glue.

It should be noted that the colloid is preferably ceramic colloid, and the type of colloid can be adjusted according to actual conditions as long as the above purpose can be achieved.

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

The embodiments provided by the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims (10)

A heating device with a rotatable heating element, used for heating a smoking substance (2) in a cigarette (1), characterized in that the heating device comprises a heating element (100) and a heating chamber (200), a heating section (110) of the heating element (100) being located inside the heating chamber (200) and being rotatable relative to the heating chamber (200) so as to heat the smoking substance (2) located in the heating chamber (200) and contacting the heating section (110). The heating device with a rotatable heating element according to claim 1 is characterized in that the heating device also includes a transmission assembly (300) and an electric control system (400), and the end of the heating element (100) away from the heating section (110) is provided with a flange support section (120) and an electrical connection section (130), and the bracket gear (500) is clamped on the outer periphery of the flange support section (120) and connected to the transmission assembly (300) for driving the heating element (100) to rotate, and the electrical connection section (130) is connected to the electric control system (400) for the heating element (100) to heat the smoking substance (2). The heating device with a rotatable heating element according to claim 2 is characterized in that the bracket gear (500) includes a gear portion (510) and a column portion (520) that are fixedly connected, and a cavity structure that is adapted to the flange support section (120) is provided inside the gear portion (510) so that the flange support section (120) limits the bracket gear (500) from moving along its own axial direction, and the column portion (520) surrounds the outer periphery of the heating element (100). The heating device with a rotatable heating element according to claim 3 is characterized in that the transmission assembly (300) comprises a motor (310), a transmission shaft (320) and a transmission gear (330), and the motor (310) can drive the transmission shaft (320) to rotate, so that the transmission gear (330) connected to the transmission shaft (320) rotates, and is used to drive the gear part (510) and the heating element (100) to rotate. The heating device with a rotatable heating element according to claim 2 is characterized in that the electrical connection section (130) includes an intermediate contact (131) and an annular contact (132), and the intermediate contact (131) and the annular contact (132) are respectively located in the axial direction and the circumferential direction of the electrical connection section (130) to ensure that the heating element (100) maintains connection with the electrical control system (400) when rotating. The heating device with a rotatable heating element according to claim 4 is characterized in that the heating device also includes a power supply (600), and the power supply (600) is used to supply power to the motor (310) and the electric control system (400) so that the heating element (100) can rotate and heat. The heating device with a rotatable heating element according to claim 4 is characterized in that a bearing (530) is sleeved on the outer periphery of the column portion (520). The heating device with a rotatable heating element according to claim 2, characterized in that the support gear (500) and the heating element (100) are coaxially arranged. The heating device with a rotatable heating element according to claim 2 is characterized in that the support gear (500) and the heating element (100) are fixed by colloid. The heating device with a rotatable heating element according to claim 9 is characterized in that the colloid is specifically ceramic glue.