Patent Description:
Heating assemblies are frequently used parts in daily consumer goods. Existing heating assemblies have small heating areas, low power, complex structures, and poor insulation performance, which often bring inconvenience to consumers in use and cannot satisfy heating requirements of daily products such as electronic cigarette sticks. What's more, due to their structural design defects, some heating assemblies even cause personal injury to users. Therefore, a heating assembly having a new structure is needed to solve these problems.

<CIT> discloses an electric heating element for heating non-combustible cigarettes. The electric heating element comprises two thin ceramic sheets bonded together, and an electric heating sheet between the ceramic sheets. The electric heating sheet is connected with a conductive electrode, and an interface is provided through a round hole on the surface of the ceramic sheet; The bottom of the ceramic sheet is provided with a groove leading to the inside of the ceramic sheet, and the position of the groove is kept at a certain distance from the electrothermal heating sheet, and the temperature measuring element can be placed in the groove to realize the accurate measurement of the temperature of the heating sheet. The electric heating element can be widely used in heaters for heating non-burning cigarettes. When in use, the head of the element is inserted into the cigarette to fully contact with the tobacco.

While the above publication may achieve its intended purpose, there is still a need for a new and improved heating assembly and electronic cigarette.

To solve the above-mentioned technical problems, there is provided a heating assembly as defined in claim <NUM>.

As an improvement of the above solution, the heating temperature control assembly is wrapped with an insulating layer.

As a further improvement of the above solution, the insulating layer is mica paper.

As an improvement of the above solution, the heating element has an integrated symmetrical structure.

As an improvement of the above solution, the heating element is formed by basic units that are arranged at intervals and/or connected in a head-to-tail manner, and the basic units are a combination of at least one of a regular structure and an irregular structure.

As an improvement of the above solution, the housing is made of metal with an integrally formed structure, and an exterior of the housing is polished and/or the housing is electroplated with a nano-Teflon coating.

As a further improvement of the above solution, the housing is made of ceramic with an integrally formed structure, and the sword-shaped housing is provided with a sharp edge on an edge of a blade and/or provided with a blade tip at an end part.

As an improvement of the above solution, the heating temperature control assembly further includes a temperature control component located between the metal heating element and the housing.

As an improvement of the above solution, the temperature control component is a K-type thermocouple and/or a TCR temperature control module.

As an improvement of the above solution, a joint surface between the blade and the base is provided with an arc-shaped smooth transition structure to improve strength of the root of the housing.

The present invention further provides an electronic cigarette, including any one of the heating assemblies described above.

The present invention brings the following beneficial technical effects: The arrangement of the sword-shaped housing, the metal heating element sleeved in the inner cavity of the housing, and the temperature control module located between the metal heating element and the housing forms a heating assembly having a large heating area and a simple structure, and forms an electronic cigarette.

To describe the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings required for describing the embodiments.

The following describes the concept, specific structure and technical effects of the present invention with reference to embodiments and accompanying drawings, so as to fully understand the objectives, solutions and effects of the present invention. It should be noted that the embodiments in this application and features of the embodiments may be mutually combined to derive other embodiments not explicitly described. In addition, the descriptions of up, down, left and right used in the present invention are only relative to mutual positional relationships of various components of the present invention in the figures.

<FIG> is a schematic diagram of an implementation of a heating assembly according to the present invention. <FIG> is a sectional view of the heating assembly in <FIG>. Referring to <FIG> and <FIG>, the heating assembly includes a sword-shaped housing <NUM>, and a heating temperature control assembly <NUM> sleeved in the housing <NUM>, where the heating temperature control assembly <NUM> is a metal heating element. The housing <NUM> has a three-stage structure as a whole, including a blade tip <NUM>, a blade <NUM>, and a base <NUM>. A joint surface between the blade <NUM> and the base <NUM> is provided with an arc-shaped smooth transition structure <NUM> to improve strength of the root of the housing <NUM>. A periphery of the blade <NUM> is provided with a sharp edge <NUM>, and the arrangement of the blade tip <NUM> and the sharp edge <NUM> facilitates insertion of the heating assembly into a product (for example, an electronic cigarette stick), or between products to heat the products during actual use.

Preferably, the housing <NUM> may be integrally formed with a metal material, so that the housing has good uniformity and low processing costs, thereby completely eliminating a problem that the housing is accidentally detached from the base due to heating in comparison with a conventional combined housing and base.

Preferably, the metal housing <NUM> may be polished and/or electroplated with a nano-Teflon coating to improve heat-resistant performance of the housing, prolong a service life of the housing, and reduce a coefficient of friction on an outer surface of the housing, helping a user insert the heating assembly into a product, for example, into an electronic cigarette stick, to heat the product.

Preferably, the housing <NUM> may alternatively be made of a food-grade ceramic material with an integrally formed structure, greatly improving insulation performance of the heating assembly.

Further, the heating temperature control assembly <NUM> is wrapped with an insulating layer formed by mica paper, further improving insulation performance of the heating assembly, and ensuring safety and reliability of the heating assembly.

An open end of the base <NUM> of the housing <NUM> is provided with a horn opening <NUM>, which is configured for ceramic glue dispensing to package the heating temperature control assembly inside the housing <NUM>.

<FIG> is a schematic diagram of a second implementation of a heating assembly according to the present invention. <FIG> is a sectional view of a heating assembly in <FIG>. Referring to <FIG> and <FIG>, Embodiment <NUM> differs from Embodiment <NUM> in that a housing <NUM> is of a flat shape, a side surface of the housing is arc-shaped, one end of the housing is provided with a blade tip <NUM>, and a temperature control module <NUM> includes a metal heating element <NUM> and a temperature control component <NUM>. The temperature control component <NUM> is located between the metal heating element <NUM> and an inner cavity <NUM> of the housing <NUM>. The temperature control component <NUM> may be a K-type thermocouple and/or a TCR temperature control module. In comparison with a conventional resistance temperature sensor, the practical temperature control component <NUM> in the present invention can eliminate a problem of inaccurate temperature measurement of the resistance temperature sensor due to a temperature change, thereby ensuring reliability and stability of the heating assembly. In terms of shape, a structure of another part of the heating assembly is the same as the structure in Embodiment <NUM>, and details are not described herein.

<FIG> is a schematic diagram of a first implementation of a heating element in a heating assembly according to the present invention. Referring to <FIG>, a metal heating element <NUM> has a symmetrical structure as a whole. A lower part of the metal heating element <NUM> is provided with two wide sheet-shaped connecting parts <NUM>. There are heating bodies <NUM> that are connected in a head-to-tail manner and that are approximately S-shaped as a whole between the connecting parts <NUM>, so as to heat the housing of the heating assembly. The metal heating element <NUM> arranged in this structure uniformly heats up in space, has a simple structure, and is convenient for production and processing. In addition, there is no problem of short circuit when the heating elements are connected to each other, providing high safety and stability.

<FIG> is a schematic diagram of a second implementation of a heating element in a heating assembly according to the present invention. Referring to <FIG>, a metal heating element <NUM> also has a symmetrical structure as a whole. A lower part of the metal heating element <NUM> is provided with two wide sheet-shaped connecting parts <NUM>. There is a heating body <NUM> that is formed by a plurality of basic units <NUM> connected in a head-to-tail manner between the connecting parts <NUM>. The basic units each have a regular and approximately concave-shaped structure. In comparison with a conventional heating wire, the heating body <NUM> of this structure has a large heating area and a simple structure, and is convenient for production and installation.

<FIG> is a schematic diagram of a third implementation of a heating element in a heating assembly according to the present invention. Referring to <FIG>, a metal heating element <NUM> has an asymmetrical structure as a whole. A lower part of the metal heating element <NUM> is provided with two wide sheet-shaped connecting parts <NUM>. One side of the connecting part <NUM> is provided with a heating body <NUM> that is formed by basic units <NUM> connected in a head-to-tail manner, and the other side of the connecting part <NUM> is provided with another heating body <NUM> that is formed by a regular structure. The heating element <NUM> of this structure can form a stable heating interval at one side, and an alternately changed heating interval at the other side, thereby expanding an application range of the heating assembly in the present invention.

It should be noted that the present invention does not limit the application field of the heating assembly, nor does it limit the structural shape of the basic unit <NUM> in the heating element <NUM>. The basic unit <NUM> may be a regular structure such as a triangle, a rectangle, a trapezoid, a parallelogram, an S shape, a concave shape, or a convex shape, or may be an irregular structure. In an actual application process, a regular structure and/or an irregular structure may be freely selected or combined based on a specific application scenario.

The present invention further provides an electronic cigarette, including any heating assembly described above.

It can be learned from the above description that, in the present invention, the arrangement of the sword-shaped housing, the heating element sleeved in the inner cavity of the housing, and the temperature control module located between the metal heating element and the housing forms an easy-to-use heating assembly having a large heating area and a simple structure, and forms an electronic cigarette.

Claim 1:
A heating assembly, comprising: a sword-shaped housing (<NUM>), and a heating temperature control assembly (<NUM>) sleeved in an inner cavity of the housing (<NUM>), wherein the heating temperature control assembly (<NUM>) comprises a metal heating element (<NUM>, <NUM>), the housing (<NUM>) comprises a blade tip (<NUM>), a blade (<NUM>), and a base (<NUM>), wherein,
an open end of the base (<NUM>) of the housing (<NUM>) is provided with a horn opening (<NUM>), which is configured for ceramic glue dispensing to package the heating temperature control assembly (<NUM>) inside the housing (<NUM>).