CN217658201U

CN217658201U - Heating element and electronic atomization device

Info

Publication number: CN217658201U
Application number: CN202120907516.XU
Authority: CN
Inventors: 蒋振龙; 李沛
Original assignee: Shenzhen Smoore Technology Ltd
Current assignee: Shenzhen Smoore Technology Ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-10-28
Anticipated expiration: 2031-04-28

Abstract

The application discloses heat-generating body and electronic atomization device. The heat generating body includes: a first heat conducting substrate, a second heat conducting substrate and a heating element; the first heat conduction substrate, the heating element and the second heat conduction substrate are sequentially stacked and fixedly connected. Through with heating element centre gripping between the first heat conduction substrate of high strength and second heat conduction substrate, improved heat-generating body bulk strength, the heat conduction substrate of heating element both sides can realize evenly conducting heat simultaneously for the heat-generating body generates heat evenly.

Description

Heating element and electronic atomization device

Technical Field

The application belongs to the technical field of electronic atomization devices, and particularly relates to a heating body and an electronic atomization device.

Background

Electronic atomization devices such as electronic cigarettes generally can adopt an insertion type heating element, and the insertion type heating element is at least partially inserted into tobacco, so that heating atomization of the tobacco is realized.

The existing heating body is formed by directly silk-screening resistance paste on a ceramic substrate or a metal sheet with an insulating surface to form a circuit, so that the finally formed heating body is insufficient in strength, the circuit is easy to damage, break and peel off when the substrate deforms, and the heating body is single-sided to generate heat, so that the heating temperature of the two opposite sides of the heating body is uneven.

SUMMERY OF THE UTILITY MODEL

The application provides a heat-generating body and electron atomizing device to solve foretell technical problem.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a heat-generating body, which includes:

a first heat conducting substrate, a second heat conducting substrate and a heating element; the first heat conduction substrate, the heating element and the second heat conduction substrate are sequentially stacked and fixedly connected.

Optionally, the surfaces of the first heat conducting substrate and the second heat conducting substrate, which are close to each other, are both flat surfaces;

the heating element comprises a first connecting part, a main heating part and a second connecting part which are connected in sequence; the first connecting portion and the second connecting portion are used for being electrically connected with an external power supply, so that the main heating portion is electrically connected with the external power supply to achieve heating.

Optionally, the first heat conducting substrate, the second heat conducting substrate and the heating element are all planar sheet structures.

Optionally, an outer edge of the primary heat generating portion is flush with an outer edge of at least one of the first and/or second thermally conductive substrates.

Optionally, the main heat generation part comprises a first sub heat generation part, a second sub heat generation part and a third sub heat generation part;

the first and second sub heat generating portions extend along edges of the first and second heat conductive substrates; one end of each of the first sub-heat generating portion and the second sub-heat generating portion is connected to the first connecting portion and the second connecting portion, respectively; the third sub-heating part is arranged between the first sub-heating part and the second sub-heating part, and two ends of the third sub-heating part are respectively connected with the first sub-heating part and the second sub-heating part;

the other ends of the first sub-heat generating portion and the second sub-heat generating portion are connected to or separated from each other.

Optionally, the first sub heat generating portion and the second sub heat generating portion are flush with outer edges of different sides of the first heat conducting substrate and the second heat conducting substrate, respectively.

Optionally, the heat generating body further comprises an edge sealing member disposed between the first heat conducting substrate and the second heat conducting substrate; the edge seal at least partially surrounds the heating element;

an outer edge of at least one of the first and second heat conducting substrates is flush with an outer edge of the edge seal.

Optionally, the outer edges of the edge sealing element, the first heat conducting substrate and the second heat conducting substrate are flush and form an accommodating space; the main heating part is accommodated in the accommodating space.

Optionally, the edge seal is at least one of a metal sheet layer, a ceramic sheet layer, or a glaze seal layer.

Optionally, the heating element comprises a first connection portion, a main heat generating portion and a second connection portion connected in sequence; the first connecting part and the second connecting part are used for being electrically connected with an external power supply, so that the main heating part is electrically connected with the external power supply to realize heating;

at least one surface of the first heat conducting substrate opposite to the second heat conducting substrate is provided with a groove for accommodating the main heat generating part.

Optionally, the first heat conducting substrate and the second heat conducting substrate are flush at their edges.

Optionally, the first heat conducting substrate and the second heat conducting substrate both include an installation part and an insertion part, the width of the insertion part is smaller than that of the installation part, the insertion part on the first heat conducting substrate and the second heat conducting substrate jointly forms the insertion part of the heating element, and the insertion part is used for at least partially inserting into the to-be-heated element to heat the to-be-heated element.

Optionally, a side of the mounting portion of the second heat conductive substrate away from the insertion portion has an opening, so that at least a partial region of the first connection portion and the second connection portion is exposed from the opening.

Optionally, a groove is disposed on a surface of the first heat conducting substrate opposite to the second heat conducting substrate, and the groove accommodates the heating element.

In order to solve the above technical problem, another technical solution adopted by the present application is: the electronic atomization device comprises a heating body and an atomization device main body part;

the heating body is arranged on the atomizing device main body part, a power supply is arranged in the atomizing device main body part, and the power supply is electrically connected with the heating body and used for supplying power to the heating body; the heating body is used for heating and atomizing the to-be-heated member; the heat-generating body is the heat-generating body described above.

The beneficial effect of this application is: the application provides an electronic atomization device and a heating body thereof. The first heat conducting substrate, the heating element and the second heat conducting substrate are sequentially stacked and fixedly connected, the heating element is clamped between the high-strength first heat conducting substrate and the high-strength second heat conducting substrate, the overall strength of the heating body is improved, and meanwhile the heat conducting substrates on the two sides of the heating element can conduct heat uniformly, so that the heating body can generate heat uniformly. Furthermore, the first heat conducting substrate, the heating element and the second heat conducting substrate are arranged to be of a planar sheet type structure, so that the first heat conducting substrate, the heating element and the second heat conducting substrate can be directly superposed and then are fixedly connected in a bonding mode, and the assembly difficulty and the process requirements are reduced. Therefore, the heating body formed by the scheme has the advantages of high structural strength, uniform heating, high stability and reliability, simplicity in assembly and low cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic view of a structure of an embodiment of a heat-generating body provided in the present application;

FIG. 2 is an exploded view of an embodiment of a heat-generating body shown in FIG. 1;

FIG. 3 isbase:Sub>A sectional view of an embodiment ofbase:Sub>A heat-generating body shown in FIG. 1, taken on the section A-A';

FIG. 4 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the section A-A';

FIG. 5 isbase:Sub>A sectional view of another embodiment ofbase:Sub>A heat-generating body shown in FIG. 1, taken on the section A-A';

FIG. 6 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the A-A' plane

FIG. 7 is an exploded view of another embodiment of the heat-generating body shown in FIG. 1;

FIG. 8 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the section A-A';

FIG. 9 is an exploded view of another embodiment of the heat-generating body shown in FIG. 1;

FIG. 10 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the section A-A';

FIG. 11 is a schematic configuration diagram of an embodiment of a heating element in a heat-generating body provided in the present application;

FIG. 12 is a schematic view showing the structure of another embodiment of a heating element in a heat-generating body provided by the present application;

FIG. 13 is a schematic structural view of another embodiment of the heating element of FIG. 12;

fig. 14 is a schematic structural diagram of an electronic atomization device according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are referred to in the embodiments of the present application, the directional indications are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Referring to fig. 1 to fig. 3, fig. 1 is a schematic structural diagram of an embodiment of a heating element provided in the present application; FIG. 2 is an exploded view of an embodiment of a heat-generating body shown in FIG. 1; FIG. 3 isbase:Sub>A sectional view of an embodiment of the heat-generating body shown in FIG. 1, taken along the line A-A'.

The heat-generating body 10 includes a substrate 101 and a heating element 140. The substrate 101 may include a first heat conducting substrate 110 and a second heat conducting substrate 120, where the first heat conducting substrate 110 and the second heat conducting substrate 120 are disposed opposite to each other to form an accommodating space; the heating element 140 is at least partially disposed in the accommodating space.

Specifically, the first heat conducting substrate 110 and the second heat conducting substrate 120 may be respectively attached to two opposite sides of the heating element 140 and fixedly connected to the heating element 140. Therefore, the scheme of this application establishes in heating element's relative both sides and links firmly with heating element through pasting respectively first heat conduction substrate and second heat conduction substrate to can reduce the machining precision of first heat conduction substrate and second heat conduction substrate, and can make first heat conduction substrate and second heat conduction substrate form the sealed substrate in edge in order to encapsulate heating element through the mode of welding between going on to the edge of first heat conduction substrate and second heat conduction substrate or bonding, consequently can reduce the equipment degree of difficulty, improve the packaging efficiency. Meanwhile, the first heat conduction substrate and the second heat conduction substrate on two sides of the heating element can realize uniform heat conduction, and the heating uniformity of the heating body is improved.

In this embodiment, the first heat conducting substrate 110, the heating element 140 and the second heat conducting substrate 120 are sequentially stacked and then fixedly connected by welding or bonding.

The edges of the substrate 101 may be welded by laser spot welding, so that the edges of the first heat conducting substrate 110 and the second heat conducting substrate 120 may be welded and fixed, and the first heat conducting substrate 110, the heating element 140 and the second heat conducting substrate 120 may be fixedly connected. It is understood that when the first heat conducting substrate 110 and the second heat conducting substrate 120 are fixedly connected by using a welding process, a metal heat conducting substrate may be used.

Alternatively, the first heat conducting substrate 110, the heating element 140, and the second heat conducting substrate 120 may be bonded and fixed by using a high temperature resistant insulating adhesive. Wherein the insulating paste may be disposed between the first heat conductive substrate 110 and the heating element 140 and between the second heat conductive substrate 120 and the heating element 140, respectively. Alternatively, the insulating adhesive may be accommodated in an inner space surrounded by the first heat conducting substrate 110, the heating element 140 and the second heat conducting substrate 120; further, the insulating glue may also be disposed along the edge of the substrate 101, so as to adhesively and fixedly connect the first heat conducting substrate 110, the heating element 140 and the second heat conducting substrate 120 at the edge region of the substrate 101. It is understood that when the first heat conducting substrate 110 and the second heat conducting substrate 120 are fixedly connected by using an adhesive process, a metal heat conducting substrate or a ceramic heat conducting substrate may be used.

The fixing manner of the first heat conduction substrate 110, the heating element 140 and the second heat conduction substrate 120 may be selected according to the sizes and the edges of the first heat conduction substrate 110, the heating element 140 and the second heat conduction substrate 120 are aligned or the types of the heat conduction substrates.

Specifically, referring to fig. 3, in the present embodiment, the first heat conducting substrate 110, the heating element 140 and the second heat conducting substrate 120 have the same dimension in the width direction, so that two opposite sides of the heating element 140 may be respectively aligned with two opposite sides of the first heat conducting substrate 110 in the width direction and with two opposite sides of the second heat conducting substrate 120 in the width direction. Here, opposite sides of the heating element 140 may correspond to outer sidewalls of the first sub heat generating part 1401 and the second sub heat generating part 1402, which will be described later, respectively.

At this time, the first heat conductive substrate 110 and the heating element 140 and the second heat conductive substrate 120 and the heating element 140 may be bonded and fixed by respectively providing insulating paste therebetween. It should be noted that, because the heating element needs to work in a high temperature environment, the insulating glue used for bonding, fixing and insulating generally needs to be an inorganic high temperature resistant glue.

Referring to FIG. 4, FIG. 4 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the section A-A'.

Similarly, in the present embodiment, the first heat conducting substrate 110 and the second heat conducting substrate 120 are respectively attached to two opposite sides of the heating element 140; the first heat conducting substrate 110 and the second heat conducting substrate 120 are fixedly connected by welding or bonding.

In this case, the fixing portions 103 may be formed at the edges of the first heat conductive substrate 110 and the second heat conductive substrate 120 to fix the edges of the first heat conductive substrate 110 and the second heat conductive substrate 120. The fixing portion 103 may be a welding portion formed by welding edges of the first heat conductive substrate 110 and the second heat conductive substrate 120; or may be an adhesive portion formed by adhering and fixing the edges of the first heat transfer substrate 110 and the second heat transfer substrate 120.

The fixed connection part 103 is arranged along the edge of the substrate 101; the first heat conducting substrate 110, the second heat conducting substrate 120 and the fixing portion 103 form an accommodating space for covering the heating element 140, and at least a portion of the heating element 140 is accommodated in the accommodating space.

In this embodiment, the outer contours of the first heat conductive substrate 110 and the second heat conductive substrate 120 may be set to be the same and substantially the same as the outer contour of the heating element 140.

When the first heat conduction substrate 110 and the second heat conduction substrate 120 are respectively attached to two opposite sides of the heating element 140, two side walls of the first heat conduction substrate 110 and the second heat conduction substrate 120 in the width direction (i.e., two side walls of the first heat conduction substrate 110 and the second heat conduction substrate 120 arranged along the length direction) may be respectively aligned with two opposite sides of the heating element 140. That is, the width dimensions of the first and second heat

conductive substrates

110 and 120 and the heating element 140 may be set to be the same.

In this embodiment, the fixing portion 103 may be formed at the edge regions of the first heat conduction substrate 110 and the second heat conduction substrate 120, so that the first heat conduction substrate 110 and the second heat conduction substrate 120 form an accommodation space with sealed edges.

Referring to FIG. 5, FIG. 5 isbase:Sub>A sectional view taken onbase:Sub>A section A-A' of another embodiment of the heat-generating body shown in FIG. 1.

The heat-generating body 10 in the present embodiment is different from the embodiment provided in fig. 3 in that, in the present embodiment, one width dimension of both the first heat-conducting substrate 110 and the second heat-conducting substrate 120 may be set larger than the width dimension of the heating element 140.

In this embodiment, the width of the first heat conducting substrate 110 is greater than the width of the heating element 140.

Wherein the second heat conductive substrate 120 is disposed at one side of the heating element 140 and aligned with both sides of the heating element 140 in the width direction. The first heat conductive substrate 110 is disposed at the other side of the heating element 140. Wherein a sidewall of the first heat conductive substrate 110 may be disposed in alignment with the heating element 140; alternatively, both opposite sidewalls of the first heat conductive substrate 110 are not disposed in alignment with the heating element 140 in the width direction.

Here, since the width dimension of the first heat conduction substrate 110 is greater than the width dimension of the heating element 140, a partial region of the first heat conduction substrate 110 may exceed the side edge of the heating element 140, and at this time, the fixing portion 103 may be formed based on the portion of the first heat conduction substrate 110 exceeding the side edge of the heating element 140.

Wherein, optionally, the cross section of the fixing part 103 may be triangular or trapezoidal (or approximately triangular or trapezoidal), so that the side wall of the formed substrate 101 may form an oblique angle to facilitate the insertion of the substrate 101 into the tobacco or the like to be heated.

It should be noted that the triangular or trapezoidal fastening portion 103 may be formed by grinding the welding area or the bonding area.

Referring to FIG. 6, FIG. 6 isbase:Sub>A cross-sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the section A-A'.

The heat-generating body 10 in the present embodiment is different from the embodiment provided in fig. 3 in that in the present embodiment, both the first heat conductive substrate 110 and the second heat conductive substrate 120 have a width dimension larger than that of the heating element 140.

Wherein opposite sides of the first and second heat

conductive substrates

110 and 120 are disposed beyond opposite sides of the heating element 140, respectively, in the width direction.

At this time, the fixing portions 103 may be formed at opposite sides of the first and second heat

conductive substrates

110 and 120, respectively, so that the first and second heat

conductive substrates

110 and 120 may be fixedly connected.

In the above embodiment, the first heat conductive substrate 110 and the second heat conductive substrate 120 are both of a planar sheet type structure. The planar sheet type structure herein may be expressed that the surfaces of the first and second heat

conductive substrates

110 and 120 disposed close to each other are both planar surfaces, and the surfaces of the first and second heat

conductive substrates

110 and 120 disposed far from each other are also both planar surfaces.

In other embodiment modes, the surface of at least one of the first heat conducting substrate 110 and the second heat conducting substrate 120 away from the other side may be provided with a curved surface, and the curved surface may be an arc surface or an undulated surface. This has an advantage in that at least one outer side surface of the substrate 101 formed by the first heat conductive substrate 110 and the second heat conductive substrate 120 is formed into a curved surface, so that the contact area of the substrate 101 with tobacco or the like to be heated can be increased, and the heating efficiency can be improved.

In the embodiments provided in fig. 3 to 6, the substrates 101 are directly fixed by welding or directly adhering the edges of the first and second heat-conducting

substrates

110 and 120. In other embodiments, an edge seal may also be provided.

Referring to fig. 1, 7-8, fig. 7 is an exploded view of another embodiment of the heating element shown in fig. 1; FIG. 8 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken along the line A-A'.

The substrate 101 may further include an edge seal 130, among other things. The first heat conduction substrate 110, the second heat conduction substrate 120 and the edge sealing member 130 may be respectively formed as separately formed members, the edge sealing member 130 is disposed between the first heat conduction substrate 110 and the second heat conduction substrate 120, and opposite sides of the edge sealing member 130 are respectively connected to edge regions of the first heat conduction substrate 110 and the second heat conduction substrate 120, and then the position of the edge sealing member 130 is welded or bonded, so that the above-mentioned accommodating space may be formed for accommodating the heating element 140.

In this embodiment, the outer dimensions of the first heat conducting substrate 110 and the second heat conducting substrate 120 may be set to be larger than the outer dimensions of the heating element 140, so that when the first heat conducting substrate 110, the heating element 140, and the second heat conducting substrate 120 are sequentially stacked, the opposite sides of the outer contour of the heating element 140 are not aligned with the opposite sides of the substrate 101, that is, the opposite sides of the outer contour of the heating element 140 are recessed inward relative to the opposite sides of the substrate 101, the edge sealing member 130 may be used to fill in the recess, and the first heat conducting substrate 110, the second heat conducting substrate 120, and the edge sealing member 130 are welded or bonded, so that the first heat conducting substrate 110, the second heat conducting substrate 120, and the edge sealing member 130 are fixedly connected to form the substrate 101, and the first heat conducting substrate 110, the second heat conducting substrate 120, and the edge sealing member 130 may enclose an accommodating space for the heating element 140.

Wherein the edge seal 130 is at least one of a metal sheet layer, a ceramic sheet layer, or a glaze seal layer. It should be noted that, different from the arrangement manner of the metal sheet layer and the ceramic sheet layer, the glaze sealing layer may directly fill the glaze in the recess, and the glaze is cured and molded by high temperature sintering or the like, so as to finally form the structure of the edge sealing member 130.

In the above embodiment, the edge seal 130 is a separate member from the first and second heat

conductive substrates

110 and 120, respectively. In other embodiments, the edge seal 130 may also be integrally formed with one of the first and second

heat conducting substrates

110, 120.

Specifically, please refer to fig. 1, fig. 9 and fig. 10. FIG. 9 is an exploded view of another embodiment of the heat-generating body shown in FIG. 1. FIG. 10 isbase:Sub>A sectional view of another embodiment of the heat-generating body shown in FIG. 1, taken on the section A-A'.

In this embodiment, the edge seal may be integrally formed with the first heat conductive substrate 110. An edge seal may be provided along an edge of the first heat conductive substrate 110 so that a groove portion 111 for placing the heating element 140 may be defined. The second heat conductive substrate 120 may be disposed to cover the opening of the groove portion 111.

Wherein, optionally, the surface of the heating element 140 may also be filled with a heat conductive material to form the heat conductive layer 150. The heat conducting layer 150 enables the heating element 140 to be rapidly transferred to the substrate 101, thereby avoiding the problem of heat accumulation, which in turn causes uneven temperature distribution at different parts of the substrate 101.

In one embodiment of the present embodiment, the depth of the groove portion 111 of the first heat conducting substrate 110 may be set to be smaller than the thickness of the heating element 140, that is, when the heating element 140 is placed in the groove portion 111, the heating element 140 is partially located outside the groove portion 111, and the second heat conducting substrate 120 may be attached to the surface of the heating element 140 opposite to the bottom of the groove portion 111, so that the first heat conducting substrate 110 and the second heat conducting substrate 120 may not be in contact with each other and may be connected by the edge sealing member 130.

The advantage of this scheme is that the setting position of heating element 140 can be located by setting groove portion 111, and the depth of groove portion 111 only needs to be set to be less than the thickness of heating element 140, and the processing accuracy requirement of groove portion 111 can be reduced, so that the processing difficulty of first heat-conducting substrate 110 can be reduced.

In one other embodiment, the depth of the groove portion 111 of the first heat conductive substrate 110 may also be set to be greater than or equal to the thickness of the heating element 140.

Here, the first heat conductive substrate 110 and the second heat conductive substrate 120 may be both metal sheets. Alternatively, the groove portion 111 may be formed by laser cutting the first heat conductive substrate 110. Or may be formed by machining.

Further, in the present embodiment, when the first heat conduction substrate 110 and the second heat conduction substrate 120 are respectively disposed at two opposite sides of the heating element 140, a heat conduction insulating paste may be filled in the gap between the first heat conduction substrate 110, the second heat conduction substrate 120 and the heating element 140. The heat conducting insulating glue may be used to fix the positions of the first heat conducting substrate 110, the heating element 140, and the second heat conducting substrate 120, so as to facilitate the subsequent welding or bonding fixation of the first heat conducting substrate 110 and the second heat conducting substrate 120. Meanwhile, heat inside the heating element 140 can be rapidly transmitted to the substrate 101, and the temperature uniformity of the substrate 101 can be improved.

Further, in this embodiment, the first heat conducting substrate 110, the second heat conducting substrate 120 and the edge sealing member 130 are all metal sheets, and the first heat conducting substrate 110, the edge sealing member 130 and the second heat conducting substrate 120 are sequentially stacked and then fixedly connected to form the substrate 101 as described above. The surfaces of the first heat conducting substrate 110 and the second heat conducting substrate 120 opposite to each other are flat.

The heating element 140 includes an electrically conductive body and an insulating layer covering an outer surface of the electrically conductive body, so that the heating element 140 and the substrate 101 formed by the first and second heat-conducting

substrates

110 and 120 are insulated from each other.

Therefore, by coating the insulating layer on the conductive body of the heating element 140, it is possible to eliminate the need for performing an insulating process on the first and second heat

conductive substrates

110 and 120, and thus it is possible to provide smooth surfaces on the outer surfaces of the first and second heat

conductive substrates

110 and 120 when the first and second heat

conductive substrates

110 and 120 are processed, thereby ensuring smoothness of the outer surfaces of the first and second heat

conductive substrates

110 and 120.

Further, in this embodiment, the heating element 10 may be at least partially inserted into the tobacco, so as to heat and atomize the tobacco or tobacco tar, thereby ensuring the smoothness of the outer surfaces of the first heat conducting substrate 110 and the second heat conducting substrate 120, and preventing the outer surfaces of the second heat conducting substrate 120 and the first heat conducting substrate 110 from tobacco adhesion.

In this embodiment, the substrate 101 may protect the heating element 140. Meanwhile, the first heat conducting substrate 110 and the second heat conducting substrate 120 may be both metal sheets, wherein the first heat conducting substrate 110, the second heat conducting substrate 120 and the edge sealing member 130 may all be made of materials with better heat conductivity coefficients. For example, the first thermally conductive substrate 110, the second thermally conductive substrate 120, and the edge seal 130 can be made of at least one of stainless steel, titanium-based composite, tungsten-based composite, titanium metal, or titanium alloy.

Further, the first end of the substrate 101 is used for forming a plug-in part 1011, and the plug-in part 1011 is used for being at least partially inserted into the member to be heated to heat the member to be heated; a second end of the substrate 101, opposite the first end, has an opening 102 to partially expose the heating element 140. The part of the heating element 140 exposed to the opening 102 may be used to be electrically connected to an external power supply, and the external power supply supplies power to the heating element 140, so that the heating element 140 generates heat, and the to-be-heated member is heated.

Specifically, the first heat conductive substrate 110 and the second heat conductive substrate 120 each include an insertion portion and a mounting portion connected thereto. The mounting portions 1012 of the first heat conducting substrate 110 and the second heat conducting substrate 120 may be formed together by abutting the mounting portions; the first heat conductive substrate 110 is butted against the insertion portion of the second heat conductive substrate 120 so that the insertion portion 1013 of the substrate 101 can be constructed. The end of the insertion part 1013 of the substrate 101 away from the mounting part 1012 is pointed, and the pointed end can form the insertion part 1011 of the substrate 101.

The second heat conducting substrate 120 has a notch on a side thereof away from the insertion portion 1011 of the substrate 101, so that the opening 102 can be formed after the first heat conducting substrate 110 is matched with the second heat conducting substrate 120, and the heating element can be partially exposed through the notch; in this case, the edge seal 130 is disposed to correspond to the entire edge of the insertion portion and the other edges of the mounting portion except for the notch.

In one embodiment, the first heat conducting substrate 110 is a strip shape, and one end of the first heat conducting substrate 110 is chamfered to form the insertion portion 1011, and the other end is a flush structure. That is, the first heat conductive substrate 110 includes a rectangular portion and a triangular portion disposed at one end of the rectangular portion.

When the groove portion 111 is formed on the first heat-conducting substrate 110 and/or the second heat-conducting substrate 120, the groove portion 111 also includes a rectangular portion and a triangular portion disposed at one end of the rectangular portion. The shape of the second heat conductive substrate 120 matches the shape of the first heat conductive substrate 110.

Wherein a second end portion of the first heat conductive substrate 110 near the substrate 101 is exposed with respect to the second heat conductive substrate 120, thereby partially exposing the heating element 140. Specifically, the length of the second heat-conducting substrate 120 may be set to be smaller than that of the first heat-conducting substrate 110, and a side of the heating element 140 close to the second heat-conducting substrate 120 may be an exposed surface of the heating element 140 near the second end of the substrate 101, and the exposed surface may be used for electrical connection with an external power source.

Wherein the exposed portion of the heating element 140 at the second end of the substrate 101 may be electrically connected to an external power source by a soldered conductive wire, wherein the length H of the exposed portion of the heating element 140 at the second end of the substrate 101 may be 2-3mm, such as 2mm, 2.5mm or 3mm.

In the above embodiment, the insertion part 1013 formed by the tips of the first heat conducting substrate 110 and the second heat conducting substrate 120 together may be used as an insertion tip for inserting into the tobacco to be heated. The mounting portion 1012 formed by the first heat conduction substrate 110 and the second heat conduction substrate 120 may be used to be fixedly connected to a predetermined mounting member. Wherein the width of insertion portion 1013 is smaller than the width of mounting portion 1012.

In this case, by setting the width of the mounting portion 1012 to be larger than the width of the insertion portion 1013, the strength of the mounting portion 1012 of the substrate 101 can be improved, and the mounting stability of the substrate 101 can be improved.

Alternatively, as in the embodiments shown in the foregoing, the second heat conducting substrate 120 and the first heat conducting substrate 110 may be fixedly connected by welding or bonding with a high temperature resistant inorganic adhesive. For example, the second heat conducting substrate 120 and the first heat conducting substrate 110 may be welded and fixed by welding methods such as spot welding or laser welding, or the second heat conducting substrate 120 and the first heat conducting substrate 110 may be bonded and fixed by using an insulating adhesive with good heat resistance.

Please further refer to fig. 11. Fig. 11 is a schematic structural view of an embodiment of a heating element in the heat-generating body provided by the present application.

The heating element 140 includes a first connecting portion 141, a main heat generating portion 142, a second connecting portion 143, and two connecting wires 144 connected in sequence.

The first connection portion 141 and the second connection portion 143 are disposed side by side and spaced apart at a second end of the substrate 101 and exposed through the opening 102; the first connection portion 141 and the second connection portion 143 are used to electrically connect with an external power supply, so that the main heat generating portion 142 is electrically connected with the external power supply to generate heat. The impedance of each of the first connection portion 141 and the second connection portion 143 is smaller than the impedance of the main heat generating portion 142. In particular, the cross-sectional areas of first connection portion 141 and second connection portion 143 are each larger than the cross-sectional area of main heat generation portion 142.

In this embodiment, the two connection wires 144 may be electrically connected to the first connection portion 141 and the second connection portion 143, respectively, so that the first connection portion 141 and the second connection portion 143 may be electrically connected to an external power source. Specifically, one end of each of the two connection wires 144 may be electrically connected to the first connection portion 141 and the second connection portion 143, respectively; the other ends of the two connecting wires 144 can be electrically connected to the positive and negative electrodes of an external power source, respectively.

Each end of the two connecting wires 144 may be electrically connected to the exposed portions of the first connecting portion 141 and the second connecting portion 143 from the opening 102, for example, may be fixed by welding, an insulating protective layer (not shown) may be covered at the connecting portion of the connecting wire 144 and the first connecting portion 141 or the second connecting portion 143, and the connecting wire 144 and the first connecting portion 141 or the second connecting portion 143 may be covered by the insulating protective layer, so that the connecting wire 144 and the exposed portions of the first connecting portion 141 or the second connecting portion 143 may be protected.

In this embodiment, the insulating protection layer may be formed by sintering an insulating material. Specifically, when one end of each of the two connecting wires 144 is electrically connected to the first connecting portion 141 and the second connecting portion 143, the connecting portion may be sealed with glaze.

The main heat generating portion 142 may be a continuous folding line. Specifically, the main heat generating portion 142 may include a plurality of transverse heat generating portions 1421 and a plurality of longitudinal heat generating portions 1422, and the plurality of transverse heat generating portions 1421 and the plurality of longitudinal heat generating portions 1422 are alternately connected in sequence.

Referring to fig. 7, the main heat generating portion 142 includes a plurality of transverse heat generating portions 1421, a plurality of longitudinal heat generating portions 1422, and an inclined heat generating portion 1423. The main heat generating portion 142 may be divided into a first sub heat generating region 145 and a second sub heat generating region 146, and each of the first sub heat generating region 145 and the second sub heat generating region 146 may include a plurality of transverse heat generating portions 1421, a plurality of longitudinal heat generating portions 1422, and at least one oblique heat generating portion 1423.

The first sub-heating area 145 and the second sub-heating area 146 may each include an oblique heating portion 1423, one end of each of the two oblique heating portions 1423 is connected to match the shape of the tip of the insertion portion 1011, and the two oblique heating portions 1423 may be connected to be disposed at positions corresponding to the insertion portion 1011 to supply heat to the area of the insertion portion 1011.

The ends of the first and second sub

heat generating regions

145 and 146 away from the respective oblique heat generating portions 1423 may be connected to the first and second connecting

portions

141 and 143, respectively.

For the first sub heat generation region 145, a plurality of transverse heat generation portions 1421 and a plurality of longitudinal heat generation portions 1422 disposed between the first connection portion 141 and the oblique heat generation portion 1423 thereof may be alternately connected in sequence; similarly, in the second sub heat generation region 146, the plurality of transverse heat generation portions 1421 and the plurality of longitudinal heat generation portions 1422 disposed between the second connection portion 143 and the oblique heat generation portion 1423 thereof may be alternately connected in sequence. And a polygonal line groove 147 having an equal width may be formed between the first sub heat generation region 145 and the second sub heat generation region 146.

Alternatively, in other embodiments, the heating element 140 may be provided in other shapes.

Referring to fig. 12, fig. 12 is a schematic structural diagram of another embodiment of a heating element in a heating body provided by the present application.

In this embodiment, the heating element 140 includes a first connecting portion 141, a main heat generating portion 142, a second connecting portion 143, and two connecting wires 144 connected in sequence. The connection relationship among the first connection portion 141, the main heat generating portion 142, the second connection portion 143, and the two connection wires 144 is the same as that of the embodiment shown in fig. 7.

In the present embodiment, the main heat generating unit 142 includes a first sub heat generating unit 1401, a second sub heat generating unit 1402, and a third sub heat generating unit 1403.

The first sub heat generation part 1401 and the second sub heat generation part 1402 extend along the edge of the substrate 101; one end of each of the first sub heat-generating portion 1401 and the second sub heat-generating portion 1402 is connected to the first connection portion 141 and the second connection portion 143; the other ends of the first sub heat generation part 1401 and the second sub heat generation part 1402 extend toward the first end of the substrate 101, and are connected to each other; the third sub-heat generating members 1403 are disposed between the first sub-heat generating members 1401 and the second sub-heat generating members 1402, and both ends of the third sub-heat generating members 1401 are connected to the first sub-heat generating members 1401 and the second sub-heat generating members 1402, respectively.

Optionally, the first sub-heat generating portion 1401 and the second sub-heat generating portion 1402 near the first end of the substrate 101 may respectively include a folded portion, and the first sub-heat generating portion 1401 and the second sub-heat generating portion 1402 are disposed near each other and connected to each other, and the folded portions of the first sub-heat generating portion 1401 and the second sub-heat generating portion 1402 may form a triangle matching with the insertion portion 1011 of the substrate 101.

In this embodiment, the number of the third sub-heat generation members 1403 may be 1, 2, or 2 or more, and the number thereof may be set as needed. By providing the third sub-heat generation members 1403, the overall strength of the heating element 140 can be increased, and the stability of the overall shape of the heating element 140 can be improved.

Please refer to fig. 13. Fig. 13 is a schematic view of another embodiment of the heating element of fig. 12.

In this embodiment, the difference from the heating element shown in fig. 12 is that in this embodiment, the first sub heat generation part 1401 and the second sub heat generation part 1402 are arranged at an interval (i.e., electrically disconnected) at a position close to the first end of the substrate 101, and at this time, the first sub heat generation part 1401 and the second sub heat generation part 1402 can be electrically connected through the third sub heat generation part 1403 in the middle region.

Alternatively, the heating element 140 may be a metal heating element having a self-supporting property. The heating element 140 may be a metal sheet, and the conductive body of the heating element 140 may be a metal conductor with certain strength and difficult deformation; the metallic conductor may be made of one or more of nichrome, ferrochromium alloy, nickel, or tungsten, and the conductive body may be formed in a predetermined pattern by, for example, cutting or etching a metal sheet having self-supporting properties. The insulating layer of the heating element 140 can be formed on the surface of the conductive body by coating, sputtering, or chemical etching and electrophoresis.

The coating and forming mode can comprise the steps of coating nano silicon dioxide insulating paint on the surface of the conductive body so as to form an insulating layer; the sputter forming may include sputtering a nitride, an oxide, a carbide, etc. on the surface of the conductive body to form an insulating layer; the forming method of chemical etching and electrophoresis may include immersing the conductive body in a phosphate compound solution, and then forming an insulating layer on the surface of the conductive body by chemical etching, or forming an insulating layer on the surface of the conductive body by electrophoresis.

When the insulation treatment of the surface of the heating element 140 is completed, the heating element 140 may be placed between the first heat conductive substrate 110 and the second heat conductive substrate 120, and the heating element 140 may be encapsulated.

Further, based on the same invention and creation, the application also provides an electronic atomization device. Referring to fig. 14, fig. 14 is a schematic structural diagram of an embodiment of an electronic atomization device provided in the present application.

The electronic atomizer 20 includes the heating element 10 and the atomizer main body portion 210 as described above; the heating body 10 can be installed on the atomizing device main body portion 210 through the mounting seat 201, a power supply is provided in the atomizing device main body portion 210, the power supply is electrically connected with the heating body 10 for providing power to the heating body 10, and then the heating body 10 can be used for heating and atomizing the to-be-heated member. The electronic atomization device 20 may be an electronic cigarette, an atomizer, or the like, and is not limited herein.

To sum up, this application is through range upon range of linking firmly in proper order first heat conduction substrate, heating element and second heat conduction substrate, with the first heat conduction substrate of heating element centre gripping high strength and second heat conduction substrate between, has improved heat-generating body bulk strength, the heat conduction substrate of heating element both sides can realize even heat conduction simultaneously for the heat-generating body generates heat evenly. Furthermore, the first heat conduction substrate, the heating element and the second heat conduction substrate are arranged to be of a planar sheet type structure, so that the substrates can be directly superposed and then are attached and fixedly connected, and the assembly difficulty and the process requirements are reduced. Therefore, the heating body formed by the scheme has the advantages of high structural strength, uniform heating, high stability and reliability, simplicity in assembly and low cost. Furthermore, according to the scheme of the application, the heat conduction material is filled in the gap between the substrate and the heating element, so that the heat conduction efficiency of the heating element to the substrate can be improved, and the uniformity of the heat distribution on the substrate is further improved; further, the edge sealing pieces are arranged at the edges of the first heat conduction substrate and the second heat conduction substrate, so that the accommodating space for accommodating the heating element is formed after the first heat conduction substrate, the second heat conduction substrate and the edge sealing pieces are fixedly connected, the processing and assembling difficulty of the whole substrate can be reduced, and the production efficiency of the heating body can be improved. The arrangement position of the heating element can be positioned by arranging the groove part on the first heat-conducting substrate and/or the second heat-conducting substrate, the depth of the groove part only needs to be set to be smaller than the thickness of the heating element, the processing precision requirement of the groove part can be reduced, and therefore the processing difficulty of the first heat-conducting substrate can be reduced. By setting the width of the mounting portion to be larger than the width of the insertion portion, the strength of the mounting portion of the substrate can be improved, and the mounting stability of the substrate can be improved.

The above description is only an example of the present application, and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes performed by the present application and the contents of the attached drawings, which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A heat-generating body, characterized in that the heat-generating body comprises: a first heat conducting substrate, a second heat conducting substrate and a heating element;

the first heat conduction substrate, the heating element and the second heat conduction substrate are sequentially stacked and fixedly connected.

2. A heat-generating body as described in claim 1, wherein the surfaces of said first heat conducting substrate and said second heat conducting substrate disposed close to each other are both flat surfaces;

3. A heat-generating body as described in claim 2, characterized in that the first heat conducting substrate, the second heat conducting substrate and the heating element are each a planar sheet structure.

4. A heat-generating body as described in claim 2, characterized in that an outer edge of said main heat-generating portion is flush with an outer edge of at least one of said first heat-conducting substrate and/or said second heat-conducting substrate.

5. A heat-generating body as claimed in claim 4, characterized in that the main heat-generating portion includes a first sub heat-generating portion, a second sub heat-generating portion, and a third sub heat-generating portion;

the respective other ends of the first sub-heat generating portion and the second sub-heat generating portion are connected to or separated from each other.

6. A heat-generating body as described in claim 5, characterized in that said first sub heat-generating portion and said second sub heat-generating portion are flush with outer edges of different sides of said first heat conductive substrate and said second heat conductive substrate, respectively.

7. A heat-generating body as described in claim 2, further comprising an edge seal member provided between the first heat-conducting substrate and the second heat-conducting substrate; the edge seal at least partially surrounds the heating element;

8. The heat-generating body according to claim 7, characterized in that outer edges of the edge sealing member, the first heat-conducting substrate and the second heat-conducting substrate are flush and constitute a housing space; the main heating part is accommodated in the accommodating space.

9. A heat-generating body as described in claim 7 or 8, characterized in that: the edge seal is at least one of a metal sheet layer, a ceramic sheet layer, or a glaze seal layer.

10. A heat-generating body as described in claim 1, wherein said heating element comprises a first connection part, a main heat-generating part and a second connection part which are connected in this order; the first connecting part and the second connecting part are used for being electrically connected with an external power supply, so that the main heating part is electrically connected with the external power supply to realize heating;

11. A heat-generating body as described in claim 10, wherein both edges of said first heat-conducting substrate and said second heat-conducting substrate are flush.

12. A heating body as claimed in claim 2 or 7, wherein the first heat conducting substrate and the second heat conducting substrate each comprise a mounting portion and an insertion portion, and the width of the insertion portion is smaller than that of the mounting portion, the insertion portions on the first heat conducting substrate and the second heat conducting substrate together form an insertion portion of the heating body, and the insertion portion is used for at least partially inserting into a member to be heated to heat the member to be heated.

13. A heat-generating body as described in claim 12, wherein a side of the mounting portion of the second heat-conducting substrate remote from the insertion portion has an opening so that at least a partial region of the first connection portion and the second connection portion is exposed from the opening.

14. A heat-generating body as described in claim 13, wherein a surface of said first heat-conductive substrate opposed to said second heat-conductive substrate is provided with a recess, and said recess accommodates said heating element.

15. An electronic atomization device is characterized by comprising a heating body and an atomization device main body part;

the heating body is arranged on the atomizing device main body part, a power supply is arranged in the atomizing device main body part, and the power supply is electrically connected with the heating body and used for supplying power to the heating body; the heating body is used for heating and atomizing the to-be-heated member; the heat-generating body is the heat-generating body as described in any one of claims 1 to 14.