CN115426906A - Electric heating layer structure for heating internal heating type electronic cigarette - Google Patents
Electric heating layer structure for heating internal heating type electronic cigarette Download PDFInfo
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- CN115426906A CN115426906A CN202080004654.5A CN202080004654A CN115426906A CN 115426906 A CN115426906 A CN 115426906A CN 202080004654 A CN202080004654 A CN 202080004654A CN 115426906 A CN115426906 A CN 115426906A
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- resistance layer
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- rod
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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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Abstract
The electric heating layer structure of the internal heating type electronic cigarette heating rod is attached to the surface of a base rod (1), and comprises a first resistance layer and a second resistance layer which are thin-film and mutually electrically insulated, wherein the first resistance layer and the second resistance layer are perpendicular to the axial direction of the base rod (1) and are called as the transverse direction, the axial upper ends of the first resistance layer and the second resistance layer are mutually and electrically connected, the axial lower ends of the first resistance layer and the second resistance layer are respectively provided with an extraction electrode (3), and the first resistance layer and the second resistance layer respectively comprise a resistance layer body; the resistor layer body is provided with a plurality of transverse first slits (41 a) led out from the left side edge of the resistor layer body and transverse second slits (41 b) led out from the right side edge of the resistor layer body, the lengths of the first slits (41 a) and the second slits (41 b) are smaller than the width of the resistor layer body, the first slits (41 a) and the second slits (41 b) are alternately arranged along the axial direction, and the resistor layer body is divided into a plurality of transverse strips which are mutually connected in series. The electric heating layer structure of the internal heating type electronic cigarette heating rod can compensate more lost heat of the head and the tail of the heating rod, so that the temperature of the whole internal heating type electronic cigarette heating rod is uniform.
Description
The utility model relates to a structure of the part of an electronic smoking set, an electric heating structure of an internal heating type electronic cigarette heating rod.
The internal heating type electronic cigarette heating rod is inserted into a special baking type cigarette to bake tobacco to generate smoke for people to suck. In the baking process, the tobacco is not burnt, and no open fire or soot is formed. The baked cigarette is shorter than common cigarette, and the tobacco shred length is about 15mm and the diameter is about 8 mm. The internal heating type electronic cigarette heating rod is inserted into a cigarette to be heated, the diameter is about 2mm generally, and the heating voltage is less than 4V direct-current voltage. The baking temperature of the cigarette is 280-350 ℃, the cigarette can be burned when the temperature is too high, and the cigarette can not generate the taste when the temperature is too low. The ideal heating length of the internal heating type electronic cigarette heating rod is 10-12 mm. If the temperature of the heating area is controlled to be 330 +/-10 ℃, the mouthfeel saturation degree, the smoke and the smoke amount of the cigarette are good.
Chinese patent 201820069756.5 describes a structure of a round rod-shaped ceramic heating element for an electronic cigarette, wherein a first ceramic substrate is arranged on the outermost side of a ceramic rod core, a heating line is arranged on the inner side of the first ceramic substrate, a second ceramic substrate is arranged on the inner side of the heating line, and a temperature measuring line is arranged between the second ceramic substrate and the ceramic rod core. Chinese patent 201822100129.6 describes a needle type electronic cigarette heater, which comprises a needle-shaped metal substrate and a thick film heating layer, wherein the thick film heating layer comprises an insulating layer and a heating circuit layer arranged above the insulating layer. The existing electronic cigarette heating rod does not consider the problem of axial temperature difference, and has the defects that the head and the tail of the heating rod have too low temperature due to fast heat dissipation and the middle of the heating rod has too high temperature due to slow heat dissipation when in use.
Disclosure of Invention
The utility model aims at providing an interior hot type electron cigarette heating rod's structure can obtain the even heating effect of axial temperature.
The electric heating layer structure of interior hot type electron cigarette heating rod, attached in 1 surface of basic rod, its characterized in that: the resistance layer comprises a first resistance layer and a second resistance layer which are mutually insulated in a film shape, the axial direction perpendicular to the base rod 1 on the first resistance layer and the second resistance layer is called as the transverse direction, the axial upper ends of the first resistance layer and the second resistance layer are mutually and electrically connected, the axial lower ends of the first resistance layer and the second resistance layer are respectively provided with an extraction electrode 3, and the first resistance layer and the second resistance layer respectively comprise a resistance layer body; the resistor layer body is provided with a plurality of transverse first slits 41a led out from the left side edge of the resistor layer body and transverse second slits 41b led out from the right side edge of the resistor layer body, the lengths of the first slits 41a and the second slits 41b are smaller than the width of the resistor layer body, the first slits 41a and the second slits 41b are alternately arranged along the axial direction, and the resistor layer body is divided into a plurality of transverse strips which are mutually connected in series.
Preferably, the width of upper bar 43 and lower bar 44 is less than the width of central bar 42.
Preferably, the resistive layer body of the first resistive layer and the resistive layer body of the second resistive layer are the same.
Preferably, the base shaft 1 is cylindrical, and the resistive layer body of the first resistive layer and the resistive layer body of the second resistive layer are both semicylindrical surfaces.
Adopt the utility model discloses an interior hot type electron cigarette heating rod of electrical heating structure, including a ceramic columniform base rod, the upper end of base rod is toper, has one deck glass isolation layer on the face of cylinder of base rod, has one deck electric heating layer outside the glass isolation layer, and there is one deck glass protective layer outside the electric heating layer. The electric heating layer include the resistance layer of two semicylindrical shapes of face, the upper end of the resistance layer of two semicylindrical shapes of face links to each other mutually, the lower extreme of the resistance layer of two semicylindrical shapes of face respectively has one and draws forth the electrode, horizontal seam has been distributed on the left side and the right side of the resistance layer of every semicylindrical shape of face, the length of these horizontal seams is less than the width of the resistance layer of semicylindrical shape of face, a left side, horizontal seam looks interval arrangement on the right side, cut apart into the horizontal bar of establishing ties mutually with the resistance layer of semicylindrical shape of face, the width of the horizontal bar that is located the upper portion of base rod and the horizontal bar that is located the lower part of base rod is narrower, the width broad of the horizontal bar that is located the middle part of base rod.
The internal heating type electronic cigarette heating rod has larger resistance because the widths of the transverse strips positioned at the upper part and the transverse strips positioned at the lower part of the base rod are narrower; the width of the transverse bar positioned in the middle of the base rod is wider, and the resistance is smaller; the horizontal bars on the same semi-cylindrical surface are mutually connected in series, and the current is the same when the electric appliance is electrified, so that the heating quantity per unit area of the horizontal bars on the upper part and the lower part of the base rod is larger than that of the horizontal bar in the middle part, more heat loss at the head and the tail of the heating rod can be compensated, the temperature of the whole internally heated electronic cigarette heating rod is uniform, and a good heating effect is obtained.
The utility model has the advantages that: the head and the tail of the heating rod can be compensated for more lost heat, so that the temperature of the whole internally heated electronic cigarette heating rod is uniform, and a good heating effect is obtained.
Fig. 1 is a front view of an internal heating type electronic cigarette heating rod;
figure 2 is a back view of the internally heated electronic cigarette heating rod;
figure 3 is a side view of an internally heated electronic cigarette heating rod;
FIG. 4 is an expanded view of an electrical heating layer, a glass isolation layer, and a glass protective layer;
FIG. 5 is a front view of the base shaft;
FIG. 6 is a front view of the base shaft after sintering the glass barrier layer;
FIG. 7 is a perspective view of the base at an oblique upper viewing angle;
FIG. 8 is a perspective view of the base at an oblique lower viewing angle;
FIG. 9 is a bottom view of the base;
FIG. 10 isbase:Sub>A cross-sectional view A-A of the base;
fig. 11 is a structural view of an internal heating type electronic cigarette heating rod with a base;
fig. 12 is a perspective view of the internally heated electronic cigarette heating rod with the base and the lead-out wires attached.
As shown in fig. 1, fig. 2 and fig. 3, the internally heated electronic cigarette heating rod with the electric heating structure of the present invention includes a ceramic cylindrical base rod 1, and the upper end 11 of the base rod 1 is tapered to facilitate insertion into a cigarette. A glass isolation layer 2 is arranged on the cylindrical surface of the base rod 1, an electric heating layer is arranged outside the glass isolation layer, and a glass protection layer 5 is arranged outside the electric heating layer. The electric heating layer comprises two semi-cylindrical resistance layers 4, the upper ends of the two semi-cylindrical resistance layers 4 are connected, and the lower ends of the two semi-cylindrical resistance layers 4 are respectively provided with an extraction electrode 3. As shown in fig. 4, each semi-cylindrical resistive layer 4 is provided with a plurality of transverse first slits 41a led out from the left side of the resistive layer body and a plurality of transverse second slits 41b led out from the right side of the resistive layer body, the lengths of the first slits 41a and the second slits 41b are both smaller than the width of the resistive layer body, and the first slits 41a and the second slits 41b are alternately arranged along the axial direction to divide the resistive layer body into a plurality of transverse strips which are connected in series, so that the semi-cylindrical resistive layer 4 becomes a structure in the shape of a Chinese character 'bow'; of the above-described horizontal bars, the horizontal bar 43 and the horizontal bar 44 positioned at the upper and lower portions of the base shaft are narrower in width, and the horizontal bar 42 positioned at the middle portion of the base shaft is wider in width. As shown in fig. 4, the length of the glass isolation layer 2 is greater than the length of the resistance layer 4 plus the extraction electrode 3, and the glass isolation layer separates the resistance layer and the extraction electrode from the base rod 1; the glass protective layer 5 is shorter, and the lower edge of the glass protective layer does not cover the lower half of the extraction electrode 3.
In the structure of the internal heating type electronic cigarette heating rod, because the width of the transverse bar 43 positioned at the upper part and the transverse bar 44 positioned at the lower part of the base rod is narrower, the resistance is larger, the width of the transverse bar 42 positioned at the middle part of the base rod is wider, the resistance is smaller, the current is the same when the internal heating type electronic cigarette heating rod is electrified, and the heat productivity of the transverse bar 43 positioned at the upper part and the transverse bar 44 positioned at the lower part of the base rod in unit area is larger than that of the transverse bar at the middle part, the larger heat loss of the head part and the tail part of the heating rod can be compensated, so that the temperature of the whole internal heating type electronic cigarette heating rod is uniform, and a good heating effect is obtained. As shown in fig. 4, the number of narrow bars 44 at the lower part of the base shaft is much greater since the tail of the heating rod dissipates more heat than the head.
The heating rod of the electronic cigarette can also comprise a square base 6 as shown in fig. 7 and 8, a round hole 61 which can be sleeved on the base rod 1 is arranged in the center of the base, two L-shaped lugs 62 are arranged on the lower bottom surface of the base 6, as shown in fig. 9 and 10, the two L-shaped lugs 62 are arranged on two sides of the round hole 61, and the L-shaped inner concave part 63 of each L-shaped lug 62 faces the round hole 61. As shown in fig. 11, the base 6 is fitted and fixed to the lower portion of the base shaft 1 outside the extraction electrodes 3, and two L-shaped projections 62 are opposed to the lower half of one extraction electrode 3, respectively. The base 6 is used for fixing the electronic cigarette heating rod on the smoking set, and the gap between the inner concave part 63 of the L-shaped lug 62 on the bottom surface of the base 6 and the extraction electrode 3 can be used for installing an extraction lead: after the base 6 is fitted and fixed to the lower part of the base shaft 1, some conductive paste is injected into the concave part 63 of the L-shaped projection 62, and one end of the lead-out wire 7 is inserted into the concave part 63 of the L-shaped projection 62, and after sintering, the lead-out wire 7 is fixed to the lead-out electrode 3, and the structure shown in fig. 12 is obtained.
The base rod 1 and the base 6 of the internal heating type electronic cigarette heating rod can be made of various ceramics, such as alumina ceramics, silica ceramics and zirconia ceramics, and the zirconia ceramics is the first choice, because the thermal conductivity of the zirconia ceramics is very low, generally 2-3W/(m.K), the heating speed can be effectively improved, the heat transfer loss at the base can be reduced, and the energy consumption can be reduced. The resistance layer 4 and the extraction electrode 3 can be made of silver palladium paste having a high TCR value. The glass barrier layer 2 and the glass protective layer 5 serve to protect the resistive layer 4 from oxidation.
The resistance layer 4 of the internal heating type electronic cigarette heating rod can be manufactured by adopting a high-precision cylindrical surface thick film printing method, and also can be manufactured by adopting a method of firstly printing on a plane aluminum oxide and zirconium oxide film and then wrapping the film on a zirconium oxide rod for co-firing. The process flow for manufacturing the high-precision cylindrical surface thick film by adopting the printing method comprises the following steps: (1) Printing a bottom non-porous glass barrier layer paste on the zirconia ceramic substrate rod shown in figure 5; (2) Sintering at 850 ℃ to obtain a glass isolation layer 2 which becomes the structure shown in figure 6; (3) printing a resistance layer 4 and an electrode 3 on the glass isolation layer; (4) sintering at 850 ℃; (5) printing a glass protective layer 5; (6) sintering at 850 ℃; (7) Adhering the base 6 with glass paste, injecting conductive paste into the concave parts 63 of the two bumps 62, and inserting the lead-out wires 7; and (8) sintering at 650 ℃.
The reference dimensions of the internally heated electronic cigarette heating rod are as follows: the base rod 1 is 20mm long and 1.7-2.5 mm in diameter; the length of the resistance layer area is 12-13 mm, and the length of the electrode area is 4.5mm. 13-16 horizontal bars are arranged on each semi-cylindrical resistive layer 4, 6 horizontal bars 44 are arranged at the lower part of the semi-cylindrical resistive layer, each horizontal bar is 0.4-0.45 mm wide, and the line gap is 0.1-0.2 mm; 2 transverse strips 43 at the upper part are provided, each strip is 0.4-0.45 mm wide, and the line gap is 0.15mm; the rest are horizontal strips 42 in the middle, each width is 0.9-1.1 mm, and the line gap is 0.15-0.2 mm. By adopting the design, when the wiring length of the heating area is about 13mm, a constant temperature area with the temperature of 330 +/-10 ℃ and the length of more than 10mm can be obtained, and the requirement of the internal heating type electronic cigarette heating rod on a temperature field is met. The width of the leading-out electrode is 2mm, the resistance is small, when the heating of the resistance layer is stabilized at 330 ℃, the temperature of the base is less than 100 ℃, and the heat dissipated from the tail of the heating rod is small. The TCR value of the silver palladium slurry is 1500-3000 ppm/DEG C, and the designed resistance is 0.6-0.8 omega under the environment of 25 ℃. After the resistance is electrified and heated, the resistance linearly rises along with the temperature, and the temperature of a heating area can be determined by detecting the current resistance value.
The working process of the internal heating type electronic cigarette heating rod is as follows: when the resistance is 0.6 omega at normal temperature, after 3.7V voltage is applied, the transverse bar 44 close to the lower part of the base provides a fast enough heating speed, the temperature at the position can be raised to 350 ℃ within 3 seconds, the tobacco shreds are quickly baked, which is equivalent to that the head is firstly ignited in the traditional smoking process, and the quick smoking can be realized; after the temperature rises, the TCR effect enables the resistance to be increased, the power is rapidly reduced, the applied voltage can be adjusted by a control circuit according to the detected current resistance (namely the current temperature), the temperature at the transverse bar 42 in the middle is gradually increased along with the balance of heating and heat dissipation, the temperature in the transverse bar 44 area close to the lower part of the base is gradually balanced with the middle area along with the reduction of the voltage, the temperature in a 10mm constant temperature area can be maintained at about 330 ℃ after the base is electrified for about 20 seconds, and the consistent taste in the suction process is ensured. When the length of the heating rod reaches 10mm in a 330 ℃ constant temperature area, the power consumption of the heating rod is only about 3W, and the requirement of the internally heated electronic cigarette heating rod on low power consumption is met.
Claims (4)
- The electric heating layer structure of interior hot type electron cigarette heating rod, attached in base rod (1) surface, its characterized in that: the resistance layer comprises a first resistance layer and a second resistance layer which are film-shaped and mutually electrically insulated, the direction of the first resistance layer and the second resistance layer which is vertical to the axis of the base rod (1) is called as a transverse direction, the axial upper ends of the first resistance layer and the second resistance layer are mutually and electrically connected, the axial lower ends of the first resistance layer and the second resistance layer are respectively provided with an extraction electrode (3), and the first resistance layer and the second resistance layer respectively comprise a resistance layer body; the resistor layer body is provided with a plurality of transverse first slits (41 a) led out from the left side edge of the resistor layer body and transverse second slits (41 b) led out from the right side edge of the resistor layer body, the lengths of the first slits (41 a) and the second slits (41 b) are smaller than the width of the resistor layer body, the first slits (41 a) and the second slits (41 b) are arranged alternately along the axial direction, and the resistor layer body is divided into a plurality of transverse bars which are connected in series.
- The electric heating layer structure of the internally heated electronic cigarette heating rod of claim 1, characterized in that: the width of the upper horizontal bar (43) and the lower horizontal bar (44) is smaller than the width of the middle horizontal bar (42).
- The electric heating layer structure of the internally heated electronic cigarette heating rod of claim 1, characterized in that: the resistive layer body of the first resistive layer and the resistive layer body of the second resistive layer are the same.
- The electric heating layer structure of an internally heated electronic cigarette heating rod according to claim 1, characterized in that: the base rod (1) is cylindrical, and the resistance layer body of the first resistance layer and the resistance layer body of the second resistance layer are both semi-cylindrical surfaces.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020553954.6 | 2020-04-15 | ||
| CN202020553954.6U CN212065694U (en) | 2020-04-15 | 2020-04-15 | Internal heating type electronic cigarette heating rod |
| PCT/CN2020/100594 WO2021208269A1 (en) | 2020-04-15 | 2020-07-07 | Electrical heating layer structure of internal-heating-type electronic cigarette heating rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115426906A true CN115426906A (en) | 2022-12-02 |
Family
ID=73595349
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020553954.6U Expired - Fee Related CN212065694U (en) | 2020-04-15 | 2020-04-15 | Internal heating type electronic cigarette heating rod |
| CN202021213446.XU Active CN216019114U (en) | 2020-04-15 | 2020-04-15 | Electric heating layer structure for heating internal heating type electronic cigarette |
| CN202080004654.5A Pending CN115426906A (en) | 2020-04-15 | 2020-07-07 | Electric heating layer structure for heating internal heating type electronic cigarette |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020553954.6U Expired - Fee Related CN212065694U (en) | 2020-04-15 | 2020-04-15 | Internal heating type electronic cigarette heating rod |
| CN202021213446.XU Active CN216019114U (en) | 2020-04-15 | 2020-04-15 | Electric heating layer structure for heating internal heating type electronic cigarette |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN212065694U (en) |
| WO (1) | WO2021208269A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024051376A1 (en) * | 2022-09-08 | 2024-03-14 | 深圳市赛尔美电子科技有限公司 | Heat-not-burn smoking set |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101995792B1 (en) * | 2017-12-14 | 2019-07-03 | 주식회사 무한기업 | Electronic smoking device |
| CN110495639B (en) * | 2018-05-18 | 2024-06-18 | 湖南中烟工业有限责任公司 | Sectional heating type heating body and low-temperature smoking set |
| CN209185754U (en) * | 2018-09-21 | 2019-08-02 | 深圳麦克韦尔股份有限公司 | Toast smoking set and its heat generating member |
| CN209965237U (en) * | 2019-04-02 | 2020-01-21 | 东莞市麦斯莫科电子科技有限公司 | Heater and electronic cigarette using same |
| CN109805461A (en) * | 2019-04-09 | 2019-05-28 | 东莞市麦斯莫科电子科技有限公司 | A kind of heating bar with cooling area |
| CN111000293A (en) * | 2019-12-05 | 2020-04-14 | 东莞市陶陶新材料科技有限公司 | Electronic cigarette atomization core and preparation method thereof |
-
2020
- 2020-04-15 CN CN202020553954.6U patent/CN212065694U/en not_active Expired - Fee Related
- 2020-04-15 CN CN202021213446.XU patent/CN216019114U/en active Active
- 2020-07-07 CN CN202080004654.5A patent/CN115426906A/en active Pending
- 2020-07-07 WO PCT/CN2020/100594 patent/WO2021208269A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021208269A1 (en) | 2021-10-21 |
| CN216019114U (en) | 2022-03-15 |
| CN212065694U (en) | 2020-12-04 |
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