CN112273736A - Heating element assembly, preparation method and low-temperature smoking set - Google Patents
Heating element assembly, preparation method and low-temperature smoking set Download PDFInfo
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- CN112273736A CN112273736A CN202010986537.5A CN202010986537A CN112273736A CN 112273736 A CN112273736 A CN 112273736A CN 202010986537 A CN202010986537 A CN 202010986537A CN 112273736 A CN112273736 A CN 112273736A
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- bonding pad
- heating
- measuring element
- temperature
- temperature measuring
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
Abstract
The embodiment of the invention discloses a heating element assembly, a preparation method and a low-temperature smoking set, wherein the heating element assembly comprises the following components: a heating element and a temperature measuring element; the heating body is provided with an inner surface forming the heating cavity and an outer surface surrounding the inner surface, the temperature measuring element is fixed on the outer surface, and a sintering layer is arranged between the temperature measuring element and the outer surface. The heating body and the temperature measuring element are tightly integrated without gaps through the sintering layer; the stable property of the sintering layer ensures that the fixed position of the temperature measuring element relative to the heating element is always kept stable; the temperature measuring element and the heating element are integrated, so that the temperature measuring element and the heating element can be synchronously assembled in the low-temperature smoking set, and when a cigarette is inserted into the heating cavity of the heating element for heating, the temperature measuring element which is relatively stable and tightly fixed with the heating element can accurately measure the heating temperature of the heating element on the cigarette.
Description
Technical Field
The invention relates to the technical field of smoking sets, in particular to a heating element assembly, a preparation method and a low-temperature smoking set.
Background
Compared with the traditional cigarette, the heating non-combustion smoking device (also called as a low-temperature smoking set) directly heats the tobacco or nicotine product through the heating body, and after being baked, the smoke is gradually volatilized, so that harmful smoke components generated by combustion and thermal degradation of the tobacco in the traditional cigarette can be reduced.
The heating body generally adopts an external temperature measuring element to detect the temperature, and the temperature measuring element is generally connected with the heating body through an external fixing piece, so that a connection gap exists between the temperature measuring element and the heating body, the temperature measuring element is easy to loosen with the heating body, and the fixed position of the temperature measuring element is not uniform, so that the temperature detected by the temperature measuring element cannot truly reflect the temperature of the heating body.
Disclosure of Invention
The invention aims to provide a heating element assembly, a preparation method and a low-temperature smoking set, and aims to solve the technical problem that in the prior art, a temperature measuring element cannot truly reflect the temperature of a heating body because the temperature measuring element is not uniform in fixed position due to the fact that a gap exists when the temperature measuring element is connected with a heating element and the temperature measuring element is easy to loosen with the heating element.
To this end, according to a first aspect, in one embodiment there is provided a heat generator assembly assembled within a low temperature smoking article, comprising: a heating element and a temperature measuring element;
the heating body is provided with an inner surface forming the heating cavity and an outer surface surrounding the inner surface, the temperature measuring element is fixed on the outer surface, and a sintering layer is arranged between the temperature measuring element and the outer surface.
As an improvement, the temperature measuring element comprises a temperature measuring element main body and a connecting pin led out from the temperature measuring element main body;
the heating element assembly further comprises a first bonding pad, a second bonding pad and a wiring line, wherein the first bonding pad, the second bonding pad and the wiring line are arranged on the outer surface, the first bonding pad is correspondingly connected with the connecting pins, the second bonding pad is used for being electrically connected with an electric control board of the low-temperature smoking set, and the wiring line is connected between the first bonding pad and the second bonding pad.
As an improvement, the heat-generating body assembly further includes a gold wire fixed to the connection pin, and the gold wire is connected to the first pad.
As an improvement, one end of the heating body is provided with a cigarette inserting port communicated with the heating cavity, and the second welding disc is arranged at one end of the outer surface far away from the cigarette inserting port.
According to a second aspect, there is provided in an embodiment a method of producing a heat-generating body assembly described in the first aspect, comprising:
bonding the temperature measuring element on the outer surface of the heating body through a sintering material;
and sintering the sintering material to form a sintering layer fixedly connected between the temperature measuring element and the outer surface of the heating body.
As an improvement, before the sintering material to form a sintered layer fixedly connected between the temperature measuring element and the outer surface of the heat generating body, the manufacturing method further includes:
performing silver paste spotting operation on the outer surface of the heating body to form a first bonding pad corresponding to a connecting pin of the temperature measuring element and a second bonding pad used for being connected with an electric control board of the low-temperature smoking set;
fixing a gold wire on a connecting pin of the temperature measuring element, and welding and fixing the gold wire and the first bonding pad;
and printing silver paste on the outer surface of the heating body to form a wiring line connected between the first bonding pad and the second bonding pad.
As an improvement, before the sintering material to form the sintering layer fixedly connected between the temperature measuring element and the outer surface of the heating body, and after the silver paste printing operation is performed on the outer surface of the heating body to form the wiring line connected between the first pad and the second pad, the preparation method further comprises:
and drying the sintering material, the first bonding pad, the second bonding pad and the wiring line.
As an improvement, after the sintering material to form a sintered layer fixedly connected between the temperature measuring element and the outer surface of the heat generating body, the production method further includes:
forming a glaze layer covering the first bonding pad, the second bonding pad and the circuit by adopting a glazing process;
and sintering the glaze layer.
As an improvement, before the sintering of the glaze layer, the glaze layer is subjected to a drying treatment.
According to a third aspect, an embodiment provides a low-temperature smoking set comprising the heat generating element formed by the method of preparing a heat generating element assembly according to the second aspect.
The invention has the beneficial effects that: forming a sintering layer between the outer surface of the heating body and the temperature measuring element by a sintering process, so that the heating body and the temperature measuring element are tightly integrated, namely, no gap exists between the temperature measuring element and the heating body; meanwhile, the fixed position of the temperature measuring element relative to the heating element is always kept stable through the stability of the sintering layer; the temperature measuring element and the heating body are integrated, so that the temperature measuring element and the heating body can be synchronously assembled in the low-temperature smoking set, and when a cigarette is inserted into the heating cavity of the heating body for heating, the temperature measuring element which keeps the temperature relative to the heating body and is tightly fixed can accurately measure the heating temperature of the heating body on the cigarette. By the technical scheme, the technical problem that in the prior art, the fixed position of the temperature measuring element is not uniform due to the fact that the temperature measuring element is connected with the heating body in a clearance mode and is easy to loosen with the heating body, and the temperature of the heating body cannot be truly reflected by the temperature measuring element is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic view showing the entire structure of a heat-generating body assembly of the embodiment of the invention;
FIG. 2 is a schematic structural view of a temperature measuring element of a heating element assembly according to an embodiment of the present invention; (ii) a
FIG. 3 is an enlarged schematic view at C of FIG. 1;
FIG. 4 is a schematic flow chart showing a method for producing a heat-generating body assembly according to an embodiment of the invention;
FIG. 5 is a schematic flow chart showing a production method of a heat-generating body assembly of another embodiment of the invention.
In the figure:
100. a heat generator assembly; 10. a heating element; 10a, inserting a cigarette port; 10b, a heating circuit; 11. an outer surface; 20. a temperature measuring element; 21. a temperature measuring element main body; 20. connecting pins; 31. a first pad; 32. a second pad; 33. and (6) routing the line.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present invention provides a heating element assembly 100, wherein the heating element assembly 100 is assembled in a low temperature smoking set, it should be noted that the heating element assembly 100 can also be assembled in other heating devices such as an electric heating cup, a hot water kettle or an electric rice cooker, as shown in fig. 1-3, the heating element assembly 100 comprises a heating element 10 and a temperature measuring element 20, and the temperature measuring element 20 is used for detecting the heating temperature of the heating element 10.
The heating element 10 has an inner surface forming a heating chamber and an outer surface 11 surrounding the inner surface, the temperature measuring element 20 is fixed on the outer surface 11, and a sintered layer is provided between the temperature measuring element 20 and the outer surface 11.
In the technical scheme, a sintering layer is formed between the outer surface 11 of the heating body 10 and the temperature measuring element 20 through a sintering process, so that the heating body 10 and the temperature measuring element 20 are tightly integrated, namely, no gap exists between the temperature measuring element 20 and the heating body 10; meanwhile, the fixed position of the temperature measuring element 20 relative to the heating element 10 is always kept stable through the stable property of the sintering layer; the integration of the temperature measuring element 20 and the heating element 10 enables the temperature measuring element 20 and the heating element 10 to be synchronously assembled in the low-temperature smoking set, and when a cigarette is inserted into the heating cavity of the heating element 10 for heating, the temperature measuring element 20 which keeps the temperature relative to the heating element 10 and is tightly fixed can accurately measure the heating temperature of the heating element 10 to the cigarette. By applying the technical scheme, the technical problem that in the prior art, the temperature measuring element 20 cannot truly reflect the temperature of the heating body 10 because the temperature measuring element 20 has a gap when being connected with the heating body 10 and is easy to loosen with the heating body 10, so that the fixed position is not uniform is solved.
The temperature measuring element 20 may be a negative temperature coefficient thermistor, the heat-resistant temperature of the negative temperature coefficient thermistor is about 1200 ℃, the sintering temperature of the sintered layer is about 850 ℃, and the temperature measuring element 20 may also be a positive temperature coefficient thermistor or a k-type thermocouple, and the like.
The outer surface 11 of the heating element 10 is provided with a heating line 10b for heating the cigarettes in the heating chamber.
In some embodiments, the temperature sensing element 20 includes a temperature sensing element body 21 and a connection pin 22 extending from the temperature sensing element body 21; the heating element assembly 100 further comprises a first bonding pad 31, a second bonding pad 32 and a wiring line 33, wherein the first bonding pad 31, the second bonding pad 32 and the wiring line 33 are arranged on the outer surface 11, the first bonding pad 31 is correspondingly connected with the connecting pins 22, the second bonding pad 32 is used for being electrically connected with an electric control board of the low-temperature smoking set, and the wiring line 33 is connected between the first bonding pad 31 and the second bonding pad 32. The first bonding pad 31, the second bonding pad 32 and the routing circuit 33 are arranged on the outer surface 11, so that the temperature measuring element 20 is electrically connected with the electric control board in the low-temperature smoking set sequentially through the first bonding pad 31, the routing circuit 33 and the second bonding pad 32.
In one embodiment, the heat generator assembly 100 further comprises a gold wire fixed on the connection pin 22, and the gold wire is connected to the first pad 31. Wherein, the gold wire is welded and fixed with the first pad 31, thereby realizing the stable connection of the connecting pin 22 and the first pad 31; and the heat-resisting temperature of the gold wire is about 1064 ℃, thereby ensuring that the gold wire can not be melted when the sintering process is carried out.
In some specific embodiments, one end of the heating element 10 has a smoke insertion opening 10a communicated with the heating cavity, and the second pad 32 is disposed at one end of the outer surface 11 far away from the smoke insertion opening 10a, so as to facilitate connection of the second pad 32 with the electric control board.
Referring to fig. 4, the present invention also provides a method for producing the heat-generating body assembly 100, which comprises:
101. the temperature measuring element 20 is bonded on the outer surface 11 of the heating body 10 through a sintered material;
102. the sintered material is sintered to form a sintered layer fixedly connected between the temperature measuring element 20 and the outer surface 11 of the heating element 10.
The heating body 10 comprises an inner surface and an outer surface 11 surrounding the inner surface, the inner surface forms a heating cavity for accommodating cigarettes, the temperature measuring element 20 is fixed on the outer surface 11, the temperature measuring element 20 is firstly bonded on the outer surface 11 of the heating body 10 through a sintering material, wherein the sintering material can adopt glass glaze, and the sintering temperature is about 850 ℃; and then sintering the sintered material at high temperature to form a sintered layer which is fixedly connected between the temperature measuring element 20 and the outer surface 11 of the heating body 10, so that the temperature measuring element 20 and the heating body 10 are connected without gaps, and the fixed position of the temperature measuring element 20 is not deviated due to looseness.
Referring to FIG. 5, in one embodiment, the method of preparing the heat-generating body assembly 100 may comprise:
201. the temperature measuring element 20 is bonded on the outer surface 11 of the heating body 10 through a sintered material;
202. performing a silver paste dispensing operation on the outer surface 11 of the heating body 10 to form a first pad 31 corresponding to the connection pin 22 of the temperature measuring element 20 and a second pad 32 for connection with an electric control board of the low-temperature smoking set;
203. fixing a gold wire on the connecting pin 22 of the temperature measuring element 20, and welding and fixing the gold wire and the first bonding pad 31;
204. performing a silver paste printing operation on the outer surface 11 of the heat generating body 10 to form a routing line 33 connected between the first pad 31 and the second pad 32;
205. sintering the sintered material to form a sintered layer fixedly connected between the temperature measuring element 20 and the outer surface 11 of the heating element 10
Before sintering the sintering material, firstly forming a first bonding pad 31 and a second bonding pad 32 on the outer surface 11 of the heating element 10 by silver paste, wherein the first bonding pad 31 is used for being connected with a connecting pin 22 of the temperature measuring element 20, and the second bonding pad 32 is used for being connected with an electric control board in a low-temperature smoking set; a gold wire is bound on the connecting pin 22, and the connecting pin 22 is stably connected with the first bonding pad 31 by welding the gold wire with the first bonding pad 31; and a trace line 33 is formed by printing silver paste, the trace line 33 being connected between the first pad 31 and the second pad 32. That is, the temperature measuring element 20 is electrically connected with the electric control board in the low-temperature smoking set by sequentially passing through the gold wire, the first bonding pad 31, the routing circuit 33 and the second bonding pad 32, and the first bonding pad 31, the routing circuit 33 and the second bonding pad 32 are formed by silver paste printing, so that the first bonding pad 31, the routing circuit 33 and the second bonding pad 32 can resist high temperature of about 900 degrees, have small resistance and can not generate heat.
In some specific embodiments, before the sintering material to form the sintering layer fixedly connected between the temperature measuring element 20 and the outer surface 11 of the heating element 10, and after the silver paste printing operation is performed on the outer surface 11 of the heating element 10 to form the trace line 33 connected between the first pad 31 and the second pad 32, the method for preparing the heating element assembly 100 may include:
and drying the sintering material, the first bonding pad 31, the second bonding pad 32 and the wiring line 33.
That is, in the present embodiment, before sintering the sintering material, a drying process is performed at a temperature of about 200 ℃ to dry the sintering material, the first bonding pads 31, the second bonding pads 32 and the trace lines 33.
In one embodiment, after the sintering material to form the sintered layer fixedly connected between the temperature measuring element 20 and the outer surface 11 of the heat generating body 10, the method of manufacturing the heat generating body assembly 100 further comprises:
forming a glaze layer covering the first bonding pad 31, the second bonding pad 32 and the circuit by adopting a glazing process;
drying the glaze layer;
and sintering the dried glaze layer.
In this embodiment, the method for manufacturing the heat generating body assembly 100 further includes coating a glaze to form a glaze layer, the glaze layer covering the first pad 31, the second pad 32, and the wiring, and then drying and sintering the glaze layer, wherein the drying temperature is about 200 ℃ and the sintering temperature is about 850 ℃. The glaze layer after curing insulates and protects the first bonding pad 31, the second bonding pad 32 and the wiring line 33, prevents the first bonding pad 31, the second bonding pad 32 and the wiring line 33 from being oxidized and failed after long-time work, and can glaze the sintering layer, the gold wire and the connecting pin 22.
Further, finished product inspection was performed on the prepared heat-generating body assembly 100.
The technical scheme also provides a low-temperature smoking set, which comprises a shell, an electric control board assembled in the shell and a heating element assembly 100, wherein the heating element assembly 100 is the heating element assembly 100 prepared by the method, and specifically, the second bonding pad 32 of the heating element assembly 100 is electrically connected with the electric control board so as to realize the communication connection between the temperature measuring element 20 and the electric control board.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A heat-generating body subassembly, heat-generating body subassembly can assemble in the low temperature smoking set, its characterized in that includes: a heating element and a temperature measuring element;
the heating body is provided with an inner surface forming the heating cavity and an outer surface surrounding the inner surface, the temperature measuring element is fixed on the outer surface, and a sintering layer is arranged between the temperature measuring element and the outer surface.
2. The heat-generating body assembly as described in claim 1, wherein the temperature-measuring element comprises a temperature-measuring element main body and a connection pin led out from the temperature-measuring element main body;
the heating element assembly further comprises a first bonding pad, a second bonding pad and a wiring line, wherein the first bonding pad, the second bonding pad and the wiring line are arranged on the outer surface, the first bonding pad is correspondingly connected with the connecting pins, the second bonding pad is used for being electrically connected with an electric control board of the low-temperature smoking set, and the wiring line is connected between the first bonding pad and the second bonding pad.
3. A heat-generating body assembly as described in claim 2, further comprising a gold wire fixed to said connection pin, and said gold wire is connected to said first bonding pad.
4. A heat generating body assembly as described in claim 3, wherein said heat generating body has a smoke insertion opening communicating with said heating chamber at one end thereof, and said second pad is provided at an end of said outer surface remote from said smoke insertion opening.
5. A heat-generating body assembly production method as described in any one of claims 1 to 4, characterized by comprising:
bonding the temperature measuring element on the outer surface of the heating body through a sintering material;
and sintering the sintering material to form a sintering layer fixedly connected between the temperature measuring element and the outer surface of the heating body.
6. A heat-generating body assembly production method as described in claim 5, characterized in that before said sintering the sintered material to form a sintered layer fixedly joined between the temperature element and the outer surface of the heat-generating body, the production method further comprises:
performing silver paste spotting operation on the outer surface of the heating body to form a first bonding pad corresponding to a connecting pin of the temperature measuring element and a second bonding pad used for being connected with an electric control board of the low-temperature smoking set;
fixing a gold wire on a connecting pin of the temperature measuring element, and welding and fixing the gold wire and the first bonding pad;
and printing silver paste on the outer surface of the heating body to form a wiring line connected between the first bonding pad and the second bonding pad.
7. The production method of a heat generating body assembly according to claim 6, characterized in that before the sintering of the sintering material to form the sintering layer fixedly connected between the temperature measuring element and the outer surface of the heat generating body and after the silver paste printing operation on the outer surface of the heat generating body to form the wiring line connected between the first pad and the second pad, the production method further comprises:
and drying the sintering material, the first bonding pad, the second bonding pad and the wiring line.
8. A heat-generating body assembly production method as described in claim 7, characterized in that after said sintering the sintered material to form a sintered layer fixedly joined between the temperature element and the outer surface of the heat-generating body, the production method further comprises:
forming a glaze layer covering the first bonding pad, the second bonding pad and the circuit by adopting a glazing process;
and sintering the glaze layer.
9. A heat-generating body assembly production method as described in claim 8, characterized in that said glaze layer is subjected to a baking treatment before said glaze layer is sintered.
10. A low temperature smoking set characterized by comprising a heat generating element formed by the method of producing a heat generating element assembly according to any one of claims 5 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986537.5A CN112273736A (en) | 2020-09-18 | 2020-09-18 | Heating element assembly, preparation method and low-temperature smoking set |
| PCT/CN2021/086757 WO2022057246A1 (en) | 2020-09-18 | 2021-04-13 | Heating unit assembly, preparation method, and low-temperature smoking set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010986537.5A CN112273736A (en) | 2020-09-18 | 2020-09-18 | Heating element assembly, preparation method and low-temperature smoking set |
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| CN112273736A true CN112273736A (en) | 2021-01-29 |
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| CN202010986537.5A Pending CN112273736A (en) | 2020-09-18 | 2020-09-18 | Heating element assembly, preparation method and low-temperature smoking set |
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| Country | Link |
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| CN (1) | CN112273736A (en) |
| WO (1) | WO2022057246A1 (en) |
Cited By (3)
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| CN113142642A (en) * | 2021-02-02 | 2021-07-23 | 广东中烟工业有限责任公司 | Heating body temperature measuring method of electromagnetic heater matched with heating cigarette and smoking set |
| CN113951576A (en) * | 2021-09-29 | 2022-01-21 | 广东中烟工业有限责任公司 | Electromagnetic heating needle and heating cigarette appliance with same |
| WO2022057246A1 (en) * | 2020-09-18 | 2022-03-24 | 多美达电子(深圳)有限公司 | Heating unit assembly, preparation method, and low-temperature smoking set |
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| Publication number | Publication date |
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| WO2022057246A1 (en) | 2022-03-24 |
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Application publication date: 20210129 |