JP-7855685-B2 - Heating assembly for aerosol generator

Inventors

• チャン ウェイ

Assignees

• フィリップ・モーリス・プロダクツ・ソシエテ・アノニム

Dates

Publication Date

20260508

Application Date

20211025

Claims (15)

1. A heating assembly for an aerosol generator, wherein the heating assembly is A first substrate layer, which is an electrically insulated substrate layer, A heating element, wherein the heating element is disposed on the first substrate layer, A second substrate layer, which is electrically insulated, is arranged to cover the heating element and the first substrate layer. A temperature sensor, which is disposed on the second substrate layer, The temperature sensor comprises at least two electrical contacts for contact, A heated assembly in which the contact surface of the electrical contact that contacts the temperature sensor is cross-shaped.
2. The heating assembly according to claim 1, further comprising a third substrate layer, wherein the third substrate layer is an electrically insulated substrate layer, and is arranged to at least partially cover the temperature sensor and cover the second substrate layer.
3. The heated assembly according to claim 2, wherein the third substrate layer includes at least two openings.
4. The heated assembly according to claim 3, wherein the two openings are aligned so that the two electrical contacts are not covered by the third substrate layer.
5. The heating assembly according to any one of claims 1 to 4, wherein the heating element is a resistance heater.
6. The heating assembly according to any one of claims 1 to 5, wherein the heating element comprises a heating track.
7. The heating assembly according to any one of claims 1 to 6, wherein the heating element is printed on the first substrate layer.
8. The heated assembly according to any one of claims 1 to 7, wherein the heated assembly is rolled into a tube.
9. A heated assembly according to any one of claims 1 to 8, wherein a heat-shrinkable layer is arranged around the heated assembly.
10. below: - The first adhesive layer is provided between the first substrate layer and the heating element. - A second adhesive layer is provided between the heating element and the second substrate layer. - A third adhesive layer is provided between the second adhesive layer and the temperature sensor. - The heated assembly according to claim 8 or 9, wherein one or more of the following are provided: - A fourth adhesive layer is provided between the temperature sensor and the third substrate layer.
11. A heat-assembled article according to any one of claims 1 to 10, wherein one or more of the first substrate layer, the second substrate layer, and the third substrate layer include a polyamide film.
12. An aerosol generating apparatus comprising a heated assembly according to any one of claims 1 to 11.
13. The aerosol generator according to claim 12, wherein the aerosol generator includes a cavity for receiving an aerosol generating article, and the heating assembly is arranged to at least partially surround the cavity.
14. The aerosol generating apparatus according to claim 13, wherein the side walls of the cavity are formed from stainless steel pipes, and the heated assembly is mounted on the stainless steel pipes.
15. A method for manufacturing a heated assembly for an aerosol generator, wherein the method is A step of providing a first substrate layer, wherein the first substrate layer is an electrically insulated substrate layer. A step of placing a heating element on the first substrate layer, A step of arranging the heating element and a second base layer covering the first base layer, wherein the second base layer is an electrically insulated base layer. A step of placing a temperature sensor on the second substrate layer, A method comprising the step of electrically contacting the temperature sensor with at least two electrical contacts, wherein the contact surfaces of the electrical contacts that contact the temperature sensor are cross - shaped.

Description

This invention relates to a heated assembly for an aerosol generator. Furthermore, this invention relates to an aerosol generator and a method for manufacturing a heated assembly. It is known to provide an aerosol generator for producing inhalable vapor. Such a generator may heat the aerosol-forming substrate to a temperature at which one or more components of the aerosol-forming substrate volatilize without burning the substrate. The aerosol-forming substrate may be provided as part of an aerosol-generating article. The aerosol-generating article may have a rod shape for insertion into a cavity (e.g., a heating chamber) of the aerosol generator. A heating assembly may be positioned inside or around the heating chamber to heat the aerosol-forming substrate once the aerosol-generating article is inserted into the heating chamber of the aerosol generator. It is desirable to have a heating assembly for aerosol generators with improved reliability. It is desirable to have a heating assembly for aerosol generators with improved manufacturing quality. It is desirable to have a heating assembly for aerosol generators with improved robustness during manufacturing. According to one embodiment of the present invention, a heating assembly for an aerosol generator is provided, the heating assembly may include a first substrate layer capable of electrically insulating a substrate layer. The heating assembly may further include a heating element, which may be disposed on the first substrate layer. The heating assembly may further include a second substrate layer, which may be an electrically insulating substrate layer. The second substrate layer may be disposed to cover the heating element and the first substrate layer. The heating assembly may further include a temperature sensor, which may be disposed on the second substrate layer. The heating assembly may further include at least two electrical contacts for contacting the temperature sensor. The contact surfaces of the electrical contacts that contact the temperature sensor may be cross-shaped. According to one embodiment of the present invention, a heating assembly for an aerosol generator is provided, the heating assembly comprising a first substrate layer electrically insulating a substrate layer. The heating assembly further comprises a heating element, which is disposed on the first substrate layer. The heating assembly further comprises a second substrate layer, which is an electrically insulated substrate layer, which is disposed to cover the heating element and the first substrate layer. The heating assembly further comprises a temperature sensor, which is disposed on the second substrate layer. The heating assembly further comprises at least two electrical contacts for contacting the temperature sensor. The contact surfaces of the electrical contacts that contact the temperature sensor are cross-shaped. The cross-shaped contact surface of the electrical contact that contacts the temperature sensor improves the mechanical stability of the electrical contact between the temperature sensor and the electrical contact. In particular, during the operation of a heated assembly, one or more elements of the heated assembly may be exposed to thermal expansion. Therefore, a firm contact between the temperature sensor and the electrical contact may be necessary. This is facilitated by the cross-shaped contact surface. Without being bound by any theory, it is believed that the cross-shaped contact surface improves the two-dimensional mechanical stability of the two-dimensional plane of the contact surface. The cross-shaped contact surface of the electrical contacts that contact the temperature sensor preferably means that each of the electrical contacts of the temperature sensor comprises a first conductive elongated component and a second conductive elongated component disposed transversely to the first conductive elongated component. The first conductive elongated component may intersect the second conductive elongated component at the center of each electrical contact. The central portion of the first conductive elongated component may intersect the central portion of the second conductive elongated component. The longitudinal axis of the first conductive elongated component may be perpendicular to the longitudinal axis of the second conductive elongated component. The length of the first conductive elongated component, measured along the longitudinal axis of the first conductive element component, may be greater than the width of the first conductive elongated component. The length may be twice, preferably three times, more preferably four times, and most preferably five times greater than the width. Similarly, the length of the second conductive elongated component, measured along the longitudinal axis of the second conductive element component, may be greater than the width of the second conductive elongated component. The length may be twice, preferably three times