WO2022068231A1 - Corps de génération de chaleur, ensemble de corps de génération de chaleur et dispositif de chauffage - Google Patents

Corps de génération de chaleur, ensemble de corps de génération de chaleur et dispositif de chauffage Download PDF

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Publication number
WO2022068231A1
WO2022068231A1 PCT/CN2021/096296 CN2021096296W WO2022068231A1 WO 2022068231 A1 WO2022068231 A1 WO 2022068231A1 CN 2021096296 W CN2021096296 W CN 2021096296W WO 2022068231 A1 WO2022068231 A1 WO 2022068231A1
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WIPO (PCT)
Prior art keywords
heating
electrode
temperature
temperature measuring
area
Prior art date
Application number
PCT/CN2021/096296
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English (en)
Chinese (zh)
Inventor
窦恒恒
胡国勤
方日明
Original Assignee
深圳麦时科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳麦时科技有限公司 filed Critical 深圳麦时科技有限公司
Priority to EP21873893.8A priority Critical patent/EP4190191A1/fr
Priority to JP2022574737A priority patent/JP2023528910A/ja
Priority to KR1020227045954A priority patent/KR20230016681A/ko
Publication of WO2022068231A1 publication Critical patent/WO2022068231A1/fr

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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
    • 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
    • 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
    • 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
    • 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
    • A24F40/57—Temperature control
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0019—Circuit arrangements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/03—Electrodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/46—Heating elements having the shape of rods or tubes non-flexible heating conductor mounted on insulating base
    • 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
    • A24F40/20—Devices using solid inhalable precursors
    • 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
    • A24F40/51—Arrangement of sensors
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the present application relates to the technical field of heat-not-burn smoking articles, and in particular, to a heating element, a heating component and a heating device.
  • Heat-not-burn smoking sets are mainly used to cure tobacco at a low temperature of 200°C to 400°C to generate smoke without a large amount of harmful substances caused by cracking.
  • heat-not-burn smoking devices mainly heat tobacco or pods through heating elements.
  • the temperature of the traditional heating element in the heating initial price segment is prone to have a large deviation from the design temperature, resulting in a mismatch with the baking temperature of the tobacco or cartridge, and a poor smoking experience.
  • a heat generating body comprising:
  • the base body has a bottom surface, a heat generating area and an electrode setting area adjacent to the heat generating area are arranged on the base body, and the electrode setting area is close to the bottom surface;
  • the heating circuit is located on the base body, the heating circuit includes a heating part and a heating electrode electrically connected with the heating part, the heating part forms a heating area on the base body, and the heating electrode is located in the electrode setting area ;and
  • a temperature measurement circuit located on the base body, the temperature measurement circuit is arranged at intervals from the heating circuit, the temperature measurement circuit comprises a temperature measurement part and a temperature measurement electrode electrically connected to the temperature measurement part, the heating area A high temperature area is included, and the temperature measuring part is located in the high temperature area.
  • the above heating element by setting the heating circuit and the temperature measuring circuit independently of each other, and setting the temperature measuring part of the heating element in the high temperature area of the heating area, so that the temperature measuring part can more accurately reflect the overall temperature of the heating element, thereby facilitating more Accurately control the temperature in the initial stage of heating, so that the deviation between the actual temperature in the initial stage of heating and the design temperature is smaller.
  • the high temperature area is spaced from the electrode setting area, and the temperature measuring electrode extends from the heat generating area to the electrode setting area; or, the high temperature area and the electrode setting area Adjacent, the temperature measuring electrodes are completely located in the electrode setting area.
  • the base body is in the shape of a column or strip
  • the electrode setting area and the heat generating area are arranged in the length direction of the base body
  • the high temperature area is in the length direction of the base body
  • the ratio of the length of the heat generating area and the sum of the lengths of the heat generating area and the electrode setting area in the longitudinal direction of the substrate is 1:(2-5).
  • the ratio of the length of the high temperature region in the longitudinal direction of the substrate to the sum of the lengths of the heat generating region in the longitudinal direction of the substrate is 1:(5-4).
  • the heating electrode includes a first electrode and a second electrode spaced apart from the first electrode
  • the temperature measuring electrode includes a third electrode and a fourth electrode spaced apart from the third electrode
  • the first electrode, the second electrode, the third electrode and the fourth electrode are all connected with lead wires, and the lead wires are spaced apart from each other.
  • the heating portion is U-shaped, one end of the heating portion is electrically connected to the first electrode, the other end of the heating portion is electrically connected to the second electrode, and the temperature measurement The temperature measuring part is far away from the opening formed by the two ends of the heating part; and/or,
  • the temperature measuring portion is U-shaped, one end of the temperature measuring portion is electrically connected to the third electrode, and the other end of the temperature measuring portion is electrically connected to the fourth electrode.
  • the heating part includes a plurality of heating wires arranged at intervals, and one end of each of the heating wires is electrically connected to the first electrode and the other end is connected to the second electrode.
  • the part is located between and spaced apart from the spaces adjacent to the bottoms of the heating wires.
  • the heating part includes two heating wires arranged at intervals, the first electrode and the second electrode are both U-shaped; part of the third electrode is located inside the first electrode , part of the fourth electrode is located inside the second electrode.
  • the heating part includes a heating wire
  • the heating area is composed of the high temperature area and a non-high temperature area
  • both the high temperature area and the non-high temperature area have heating wires, wherein the The width of the heating wire in the high temperature area is smaller than the width of the heating wire in the non-high temperature area.
  • the heating wire includes an electrode segment, a middle segment and a top segment connected in sequence, the electrode segment is close to the heating electrode, the top segment is close to the temperature measuring part, the electrode segment and The width of the top section is greater than the width of the middle section.
  • the base body is in the shape of a column or strip;
  • the base body includes a body and an insulating layer on the body, the body includes a base and a tip connected with the base, the base The tip portion extends in a direction away from the base portion, the width of the cross-section of the tip portion gradually decreases in the direction away from the base portion, the insulating layer is wound on the base portion, the heating circuit and the The temperature measuring circuit is located on the insulating layer.
  • the base is a ceramic base or a stainless steel base
  • the insulating layer is a glass-ceramic insulating layer or a low-temperature ceramic insulating layer; and/or,
  • the thickness of the insulating layer is 0.02mm ⁇ 0.5mm.
  • the resistance of the heating part is 0.5 ⁇ ⁇ 2 ⁇ ; and/or,
  • the resistance of the temperature measuring part is 1.5 ⁇ ⁇ 20 ⁇ .
  • the heating part is a positive temperature coefficient thermistor
  • the temperature measuring part is a positive temperature coefficient thermistor
  • the square resistance of the heating part is 20m ⁇ / ⁇ 200m ⁇ / ⁇ ;
  • the square resistance of the temperature measuring part is 20m ⁇ / ⁇ 200m ⁇ / ⁇ ;
  • the heating part contains at least one of nickel, silver, palladium, platinum and ruthenium;
  • the temperature measuring part contains at least one of nickel, silver, palladium, platinum and ruthenium.
  • the temperature coefficient of resistance of the heating part is smaller than the temperature coefficient of resistance of the temperature measuring part.
  • the material of the heating part is selected from one of nickel-chromium alloy, tantalum alloy, gold-chromium alloy and nickel-phosphorus alloy;
  • the material of the temperature measuring part is selected from at least one of copper, nickel, manganese and ruthenium.
  • the square resistance of the heating electrode does not exceed 5 m ⁇ / ⁇ , and the square resistance of the temperature measuring electrode does not exceed 5 m ⁇ / ⁇ .
  • the heating body further includes a protective layer, and the protective layer covers the heating part, the temperature measuring part and part of the temperature measuring electrodes.
  • a heating component includes a mounting seat and a heating body mounted on the mounting seat, wherein the heating body is the above heating body.
  • a heating device includes a casing and the above-mentioned heating component.
  • FIG. 1 is a perspective view of a heating element according to an embodiment
  • Fig. 2 is an exploded view of the heating element shown in Fig. 1;
  • FIG. 3 is an exploded view of a heating element of the heating assembly shown in FIG. 1;
  • Fig. 4 is another exploded view of the heating element of the heating assembly shown in Fig. 1;
  • FIG. 5 is a structural diagram of the hidden seal and the cover of the heating assembly shown in FIG. 1;
  • FIG. 6 is a front view of the heating assembly shown in FIG. 1;
  • FIG. 7 is a cross-sectional view of the heating assembly shown in FIG. 6 along the line A-A;
  • FIG. 8 is a perspective view of a heating element according to another embodiment
  • FIG. 9 is an exploded view of the heating assembly shown in FIG. 8;
  • Fig. 10 is another exploded view of the heating element shown in Fig. 8;
  • FIG. 11 is a structural diagram of the heating element of the heating assembly shown in FIG. 8 after the protective layer is hidden;
  • FIG. 12 is a structural diagram of the heating assembly shown in FIG. 8 after the installation cover is hidden;
  • Fig. 13 is the temperature control curve of the heating element of Example 1;
  • FIG. 15 is a temperature control curve of the heating element of Comparative Example 1.
  • heating element 100, heating body; 110, base body; 111, body; 113, insulating layer; 111a, base; 111b, tip; 115, bottom surface; 119, heating area; 117, electrode setting area; 119a, high temperature area; 130, heating circuit; 131, heating part; 133, heating electrode; 131a, heating wire; 133a, first electrode; 133b, second electrode; 150, temperature measurement circuit; 151, temperature measurement part; 153, temperature measurement 153a, the third electrode; 153b, the fourth electrode; 170, the protective layer; 101, the mounting seat; 101a, the mounting base; 101b, the mounting cover;
  • heating element; 200 heating body; 210, base body; 211, body; 211c, first protrusion; 211d, second protrusion; 213, insulating layer; 230, heating circuit; 231, heating part; 233, heating Electrode; 233a, first electrode; 233b, second electrode; 250, temperature measurement circuit; 251, temperature measurement part; 253, temperature measurement electrode; 253a, third electrode; 253b, fourth electrode; 270, protective layer; 201 201a, mounting base; 201c, chute; 201d, slider; 201f, holding groove; 201b, mounting cover; 203, seal.
  • an embodiment of the present application provides a heating component 10 , the heating component 10 includes a mounting seat 101 and a heating body 100 mounted on the mounting seat 101 .
  • the heating element 100 includes a base body 110 and a heating circuit 130 and a temperature measuring circuit 150 disposed on the base body 110, and the heating circuit 130 and the temperature measuring circuit 150 are independent of each other.
  • the base body 110 is used to provide support for the heating circuit 130 and the temperature measuring circuit 150 .
  • the base body 110 has a bottom surface 115 , the base body 110 includes a body 111 and an insulating layer 113 , and the heating circuit 130 and the temperature measuring circuit 150 are located on the insulating layer 113 .
  • the body 111 includes a base portion 111a and a tip portion 111b connected to the base portion 111a, the base portion 111a is cylindrical, the tip portion 111b extends in a direction away from the base portion 111a, and the width of the cross-section of the tip portion 111b gradually decreases in a direction away from the base portion 111a .
  • the base portion 111a serves as a support for the insulating layer 113, and the provision of the tip portion 111b facilitates the insertion of the heating element 100 into the object to be heated (eg, tobacco).
  • the base portion 111a is in the shape of a cylinder, a triangular prism or a quadrangular prism.
  • the shape of the base portion 111a is not limited to the above, and may also be other shapes.
  • the longitudinal section of the base portion 111a is a rectangle
  • the longitudinal section of the tip portion 111b is an isosceles triangle.
  • the longitudinal section of the tip portion 111b is not limited to an isosceles triangle, but may also be other triangles.
  • the base 111a is a hollow structure.
  • the base portion 111a of the hollow structure can reduce the weight of the heating body 100, and at the same time, can reduce the heat transfer to the electrode setting area 117, and improve the heat utilization rate.
  • a blind hole is formed on a region of the base portion 111a away from the tip portion 111b. Further, the blind hole is close to the mounting seat 101 . Providing blind holes on the base 111a close to the mounting seat 101 can also reduce heat transfer to the mounting seat 101 , improve heat utilization, and increase the life of the mounting seat 101 and other components in the mounting seat 101 .
  • the body 111 is a ceramic body 111 .
  • a zirconia ceramic body 111 for example, an alumina ceramic body 111, and the like.
  • the base portion 111a is a ceramic base portion 111a
  • the tip portion 111b is a ceramic tip portion 111b.
  • the material of the base 111a is not limited to ceramics, but can also be other materials, such as stainless steel.
  • the material of the tip portion 111b is also not limited to ceramics, and may be other materials such as stainless steel.
  • the insulating layer 113 is wound on the base portion 111a, and the insulating layer 113 provides support for the heating circuit 130 and the temperature measuring circuit 150, and also plays an insulating role. Specifically, the insulating layer 113 is wound on the outer surface of the body 111 . In the embodiment shown in FIG. 3, the insulating layer 113 is wound around the outer surface of the base portion 111a.
  • the heating circuit 130 and the temperature measuring circuit 150 are first prepared on the insulating layer 113 by screen printing, and then the insulating layer 113 is wound (eg, tape-casting) on the base 111a and co-sintered with the base. The efficiency of preparing the heating circuit 130 and the temperature measuring circuit 150 on the columnar base 111a can be improved, avoiding the difficulty of operating on the columnar body 111 due to the small size of the heating circuit 130 and the temperature measuring circuit 150 .
  • the insulating layer 113 is a glass ceramic insulating layer 113 or a low temperature ceramic insulating layer 113 .
  • the material of the glass ceramic insulating layer 113 is glass-ceramic.
  • the material of the low temperature ceramic insulating layer 113 is low temperature ceramic.
  • the insulating layer 113 is a glass ceramic insulating layer 113, and the material of the insulating layer 113 is calcium borosilicate glass-silicon oxide filling.
  • the insulating layer 113 is a tin barium borate ceramic insulating layer 113 or a zirconium barium borate ceramic insulating layer 113
  • the material of the insulating layer 113 is a tin barium borate ceramic or a zirconium barium borate ceramic.
  • the material of the insulating layer 113 is not limited to the above, and other materials that can be used as the insulating layer 113 and can be wound on the body 111 can also be used.
  • low-temperature ceramics refer to ceramics whose sintering temperature is below 1000°C.
  • the material of the base portion 111 a is different from the material of the insulating layer 113 .
  • the insulating layer 113 is selected from a material whose ductility is higher than that of the base portion 111 a
  • the base portion 111 a is selected from a material whose hardness is higher than that of the insulating layer 113 .
  • the thickness of the insulating layer 113 is 0.02 mm to 0.5 mm.
  • the thickness of the insulating layer 113 is 0.02mm, 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm or 0.5mm.
  • the insulating layer 113 may be omitted.
  • the body 111 may be made of insulating material.
  • the base body 110 is cylindrical, and the base body 110 is provided with a heat generating area 119 and an electrode setting area 117 adjacent to the heat generating area 119 , and the electrode setting area 117 and the heat generating area 119 are arranged in the length direction of the base body 110 .
  • the electrode arrangement region 117 is closer to the bottom surface 115 than the heat generating region 119 .
  • the heating area 119 is the area where the heating body 100 generates heat, and the heating circuit 130 is located in the heating area 119 ; the electrode setting area 117 is the area where the heating body 100 is installed on the mounting seat 101 .
  • the heat generating area 119 includes a high temperature area 119a, and the high temperature area 119a is an area where the temperature of the heat generating body 100 is relatively high during operation.
  • the high temperature region 119a is spaced apart from the electrode placement region 117. In another embodiment, the high temperature region 119a is adjacent to the electrode arrangement region 117 .
  • the length of the high temperature region 119a in the longitudinal direction of the base body 110 (a in FIG.
  • the ratio of the sum of the lengths in the direction (b in FIG. 3 ) is 1:(2 to 5).
  • the ratio of the length of the high temperature region 119a in the longitudinal direction of the base body 110 to the length of the heat generating region 119 in the longitudinal direction of the base body 110 (c in FIG. 3 ) is 1:(1.5 ⁇ 4).
  • the ratio of the length of the high temperature region 119a in the longitudinal direction of the substrate 110 to the sum of the lengths of the heat generating region 119 and the electrode arrangement region 117 in the longitudinal direction of the substrate 110 is 1:3.
  • the ratio of the length of the high temperature region 119a in the longitudinal direction of the base body 110 to the length of the heat generating region 119 in the longitudinal direction of the base body 110 is 1:2.
  • the heating circuit 130 is attached to the insulating layer 113 , and the heating circuit 130 is the part of the heating body 100 that generates heat.
  • the heating circuit 130 includes a heating part 131 and a heating electrode 133 electrically connected to the heating part 131 .
  • the heating electrode 133 is a member for connecting the heating part 131 and a power source.
  • the heating part 131 is attached to the surface of the insulating layer 113 away from the main body 111, and the heating part 131 forms a heating area 119 on the insulating layer 113; the heating electrode 133 is also attached to the surface of the insulating layer 113, and the heating electrode 133 includes The first electrode 133a and the second electrode 133b, the first electrode 133a and the second electrode 133b are also located on the surface of the base body 110, and are close to the mounting seat 101; the first electrode 133a is electrically connected to one end of the heating part 131, and the second electrode 133b It is electrically connected to the other end of the heat generating part 131 .
  • the first electrode 133a and the second electrode 133b are arranged at intervals to connect the two poles (positive and negative electrodes) of the power supply, respectively.
  • the heating circuit 130 and the temperature measuring circuit 150 are disposed on the same surface of the insulating layer 113, and the heating circuit 130 and the temperature measuring circuit 150 are attached to the outer surface of the base portion 111a.
  • the heating part 131 includes a heating wire 131a, one end of the heating wire 131a is electrically connected to the first electrode 133a, and the other end is connected to the second electrode 133b. Further, the heating wire 131a is connected to the first electrode 133a and the second electrode 133b by silk screen printing.
  • the heating part 131 includes a U-shaped heating wire 131a, the heating wire 131a is attached to the surface of the insulating layer 113 away from the body 111, and one end of the heating wire 131a is electrically connected to the first electrode 133a , and the other end is connected to the second electrode 133b. In the embodiment shown in FIG.
  • the heating part 131 is two heating wires 131a arranged on the insulating layer 113 at intervals, the two heating wires 131a are both U-shaped, and one heating wire 131a is located on the other heating wire On the inside of 131a, the first electrode 133a and the second electrode 133b are both U-shaped. The other end of 131a is electrically connected. It can be understood that, in other embodiments, the number of heating wires 131a is not limited to the above, and other numbers may also be used.
  • the plurality of heating wires 131a are arranged at intervals, and one end of each heating wire 131a is electrically connected to the first electrode 133a, and the other end is connected to the second electrode 133b.
  • the shape of the heating wire 131a is not limited to a U-shape, and may also be other shapes, such as a V-shape, an S-shape, and the like.
  • the shape of the first electrode 133a and the second electrode 133b is also not limited to the U shape, and may be a strip shape or an L shape.
  • the heat generating area 119 is composed of a high temperature area 119a and a non-high temperature area.
  • the width of the heating wire 131a in the high temperature region 119a is smaller than the width of the heating wire 131a in the non-high temperature region.
  • the base body 110 is in the shape of a column or strip, the length of the high temperature region 119 a is the length of the heating wire 131 a with a smaller width in the longitudinal direction of the substrate 110 , and the width of the high temperature region 119 a is the width of the base body 110 .
  • the heating wire 131 a includes an electrode segment, a middle segment, and a top segment connected in sequence, the electrode segment is close to the heating electrode 133 , and the top segment is close to the temperature measuring part 151 .
  • the width of the middle segment is smaller than the width of the electrode segment and the top segment (the width of the middle segment is the smallest).
  • the width of the middle section of the heating wire 131a is set to be smaller than the width of the electrode section and the top section, so that the heating of the heating element 100 is concentrated in the middle section and spreads to the top section and the electrode section, which is consistent with the smoke taste during heating, and also
  • the temperature of the area close to the heating electrode 133 can be made lower to prevent the high temperature from affecting or damaging the mounting seat. That is, when the width of the middle section of the heating wire 131a is smaller than the width of the electrode section and the top section, the high temperature region 119a is the region where the middle section is located, and the length of the high temperature region 119a is the length of the middle section in the longitudinal direction of the substrate 110 . , the width of the high temperature region 119 a is the width of the substrate 110 . At this time, the high temperature region 119a is spaced apart from the electrode arrangement region 117 .
  • the width of the top section of the heating wire 131a is smaller than the width of the electrode section and the middle section, so that the heat generation of the heating body 100 is concentrated in the top section, and the high temperature region 119a is the region where the top section is located, and the high temperature region
  • the length of 119 a is the length of the top section in the longitudinal direction of the base 110
  • the width of the high temperature region 119 a is the width of the base 110 .
  • the high temperature region 119a is spaced apart from the electrode arrangement region 117 .
  • the width of the electrode segment of the heating wire 131a is smaller than the width of the middle segment and the top segment, so that the heat generation of the heating body 100 is concentrated in the electrode segment, and the high temperature area 119a is the area where the electrode segment is located, and the high temperature area
  • the length of 119 a is the length of the electrode segment in the length direction of the substrate 110
  • the width of the high temperature region 119 a is the width of the substrate 110 .
  • the heat generating portion 131 is prepared from a high resistivity resistive paste. More specifically, the heating wire 131a is prepared from a high resistivity resistive paste.
  • the heating portion 131 may be formed by transferring a high resistivity resistive paste onto the insulating layer 113 by means of silk-screening thick film paste, and then sintering.
  • the high resistivity resistance paste for preparing the heat generating portion 131 includes at least one of nickel (Ni), silver (Ag), palladium (Pd), platinum (Pt) and ruthenium (Ru).
  • the resistance paste for preparing the heat generating portion 131 contains nickel, silver-palladium alloy (AgPd), silver-platinum alloy (AgPt) or silver-ruthenium alloy (Ag-Ru).
  • the high-resistivity resistive paste for preparing the heat generating portion 131 also contains a binder.
  • a binder For example inorganic binders. It is understandable that the proportion of the binder in the high resistivity resistive paste is small.
  • the preparation method of the heat generating portion 131 is not limited to this, and other methods commonly used in the art may also be used.
  • the square resistance of the heating portion 131 is 20m ⁇ / ⁇ ⁇ 200m ⁇ / ⁇ . Further, the square resistance of the heat generating portion 131 is 20m ⁇ / ⁇ , 50m ⁇ / ⁇ , 80m ⁇ / ⁇ , 100m ⁇ / ⁇ , 120m ⁇ / ⁇ , 150m ⁇ / ⁇ , 180m ⁇ / ⁇ or 200m ⁇ / ⁇ .
  • the resistance of the heating portion 131 is 0.5 ⁇ ⁇ 2 ⁇ . Further, at normal temperature, the resistance of the heat generating portion 131 is 1 ⁇ ⁇ 2 ⁇ .
  • the resistance of the heating part 131 at room temperature is not limited to the above, and the material of the resistance paste for preparing the heating part 131 , the length of the heating part 131 , the width of the heating part 131 , and the heating part 131 can be adjusted as required.
  • the thickness of the heat-generating part 131 and the pattern of the heat-generating part 131 are used to set the resistance of the heat-generating part 131 .
  • the heating part 131 is a positive temperature coefficient thermistor.
  • the heat-generating part 131 can quickly heat up, and after the temperature reaches a certain value, the resistance of the heat-generating part 131 rises sharply due to the increase in temperature, so that the heat-generating part 131 has almost no heat.
  • the current is passed to stop the heat generation, thereby preventing the heat generation area 119 from being overheated continuously.
  • the heating electrode 133 is made of a low-resistivity resistance paste. More specifically, the first electrode 133a and the second electrode 133b are made of a low-resistivity resistance paste. Similarly, the heating electrode 133 can be formed by transferring the resistance paste with low resistivity to the insulating layer 113 by means of silk-screen paste, and then sintering. Specifically, the low resistivity resistance paste for preparing the heating electrode 133 includes at least one of silver (Ag) and gold (Au). In an optional specific example, the resistance paste for preparing the heating electrode 133 contains Ag, Au, gold alloy or silver alloy. Of course, the low-resistivity resistive paste for preparing the heating electrode 133 also contains a binder.
  • inorganic binders For example inorganic binders. It can be understood that the proportion of the binder in the low-resistivity resistance paste is larger than that in the high-resistivity resistance paste.
  • the preparation method of the heating electrode 133 is not limited to this, and other methods commonly used in the art may also be used.
  • the square resistance of the heating electrode 133 does not exceed 5 m ⁇ / ⁇ . Further, the square resistance of the heating electrode 133 is 1 m ⁇ / ⁇ ⁇ 5 m ⁇ / ⁇ . The resistance of the heating electrode 133 is much smaller than the resistance of the heating part 131 , for example, the resistance of the heating electrode 133 is 0.1 ⁇ ⁇ 0.5 ⁇ . In this way, the heating electrode 133 hardly generates heat when energized, which reduces the temperature of the mounting base 101 and saves energy consumption.
  • the temperature measurement circuit 150 is used to feed back the temperature of the heating body 100 .
  • the temperature measurement circuit 150 is attached to the surface of the insulating layer 113 away from the main body 111 .
  • the heating circuit 130 and the temperature measuring circuit 150 are independent of each other. When the heating circuit 130 and the temperature measuring circuit 150 are arranged independently of each other, the self-heating of the temperature measuring circuit 150 is less, and the stray signal introduced by the current heating is less, which is beneficial to the precise temperature control of the electronic components.
  • the temperature measurement circuit 150 includes a temperature measurement part 151 and a temperature measurement electrode 153 electrically connected to the temperature measurement part 151 .
  • the temperature measuring part 151 is a part of the temperature measuring circuit 150 for measuring temperature, and the temperature measuring part 151 is in the high temperature area 119a; on the insulating layer 113 .
  • the temperature measuring electrode 153 extends from the heat generating area 119 into the electrode setting area 117.
  • the temperature measuring electrode 153 is completely located in the electrode setting area 117 .
  • one end of the temperature measuring electrode 153 close to the temperature measuring part 151 is flush with one end of the heating electrode 133 close to the heat generating part 131 .
  • the temperature measuring unit 151 has resistance TCR characteristics, that is, there is a specific correspondence between temperature and resistance. Through the power supply and the electronic control device, when a certain voltage is applied to the temperature measuring part 151, a specific current value is obtained, so as to obtain the resistance value of the temperature measuring part 151, and then the temperature of the heating element 100 can be obtained through the measured resistance value.
  • the temperature measuring electrode 153 includes a third electrode 153a and a fourth electrode 153b, the third electrode 153a and the fourth electrode 153b extend from the heating area 119 to the electrode setting area 117, and one end of the temperature measuring part 151 is connected to the third electrode 153a.
  • the other end of the temperature measuring part 151 is electrically connected to the fourth electrode 153b.
  • the temperature measuring part 151 is connected to the third electrode 153a and the fourth electrode 153b by welding.
  • the temperature of the heating element 100 tends to decrease gradually from the heating area 119 to the electrode setting area 117.
  • the main reason is that when the user smokes, the airflow is from the electrode setting area 117 to the heating area 119.
  • the direction of flow, that is, the electrode setting area 117 is cooled first.
  • the heat will be slightly larger at a higher height than at a lower position.
  • the temperature of the heat-generating area 119 far from the electrode setting area 117 is often higher than the temperature of the heat-generating area 119 close to the electrode setting area 117 .
  • the temperature measuring part 151 in the heat-generating area 119 far from the electrode setting area 117 can respond more accurately
  • the temperature of the heating body 100 can be controlled more accurately to control the temperature in the initial stage of heating, so that the deviation between the temperature in the initial stage of heating and the design temperature is smaller.
  • the temperature measuring part 151 is located in the high temperature region 119a.
  • the temperature measuring part 151 is located in the high temperature area 119a, which can more accurately reflect the maximum temperature of the heating element 100, which is more convenient to control the voltage of the heating circuit of the heating element 100, and reduce the heating of the heating circuit 130, so that the actual temperature in the heating initial stage is different from that of the heating circuit 130.
  • the deviation of the design temperature is smaller, and the consistency between the actual temperature and the design temperature in the actual heating initial stage is improved.
  • the temperature measuring part 151 includes a temperature measuring wire.
  • the temperature measuring part 151 is a temperature measuring wire, and the temperature measuring wire is far away from the connection between the U-shaped heating wire 131a and the first electrode 133a and the second electrode 133b (ie, the openings formed by the two ends of the U-shaped heating wire 131a), and is close to the bottom of the U-shaped heating wire 131a, and the temperature measuring wire is inside the U-shaped heating wire 131a.
  • the number of the heating wires 131a of the heating part 131 is multiple, the number of the temperature measuring wires may be one or multiple.
  • the temperature measuring wire is arranged in the high temperature area 119a formed by a plurality of heating wires 131a; High temperature zone 119a formed by 131a.
  • the temperature measuring wire is also U-shaped, and the high temperature area 119a formed by the heating wire 131a is the heating area 119 whose distance to the bottom surface 115 of the base 110 is greater than 2/3 of the length of the base.
  • the temperature measuring wire is located between the two U-shaped heating wires 131a, and the temperature measuring wire is spaced from the two U-shaped heating wires 131a; the third electrode 153a and the fourth electrode 153b are far from the body 111 on the insulating layer 113 A part of one side surface is strip-shaped, part of the third electrode 153a is located inside the first electrode 133a, and part of the fourth electrode 153b is located inside the second electrode 133b.
  • the shape of the temperature measuring line is not limited to U-shape, and may also be other shapes, such as V-shape, S-shape, and so on.
  • the shapes of the third electrode 153a and the fourth electrode 153b are also not limited to the bar shape, and may also be other shapes, such as an L shape.
  • the temperature measuring part 151 can also be prepared by using a resistance paste with high resistivity. More specifically, the temperature measuring wire can also be prepared by using a resistance paste with high resistivity.
  • the temperature measuring part 151 may be formed by transferring a high resistivity resistive paste onto the insulating layer 113 by means of silk-screen thick film paste, and then sintering.
  • the resistance paste with high resistivity for preparing the temperature measuring portion 151 includes at least one of nickel (Ni), silver (Ag), palladium (Pd), platinum (Pt) and ruthenium (Ru). kind.
  • the resistance paste for preparing the temperature measuring part 151 contains nickel, silver-palladium alloy (AgPd), silver-platinum alloy (AgPt) or silver-ruthenium alloy (Ag-RuO).
  • the high-resistivity resistance paste for preparing the temperature measuring portion 151 also contains a binder.
  • a binder For example inorganic binders. It is understandable that the proportion of the binder in the high resistivity resistive paste is small.
  • the preparation method of the temperature measuring part 151 is not limited to this, and other methods commonly used in the art may also be used.
  • the square resistance of the temperature measuring part 151 is 20m ⁇ / ⁇ ⁇ 200m ⁇ / ⁇ . Further, the square resistance of the temperature measuring part 151 is 20m ⁇ / ⁇ , 50m ⁇ / ⁇ , 100m ⁇ / ⁇ , 120m ⁇ / ⁇ , 150m ⁇ / ⁇ , 180m ⁇ / ⁇ or 200m ⁇ / ⁇ .
  • the temperature measuring part 151 Since the temperature measuring part 151 does not generate heat, its initial resistance is usually larger than the resistance of the temperature measuring part 151 . In one embodiment, at normal temperature, the resistance of the temperature measuring part 151 is 1.5 ⁇ ⁇ 20 ⁇ . Further, at normal temperature, the resistance of the temperature measuring part 151 is 10 ⁇ ⁇ 20 ⁇ . Of course, in other embodiments, the resistance of the temperature measuring portion 151 at room temperature is not limited to the above, and the material of the resistance paste for preparing the temperature measuring portion 151, the length of the temperature measuring portion 151, the width of the temperature measuring portion 151, The resistance of the temperature measurement part 151 is set by the thickness of the temperature measurement part 151 and the pattern of the temperature measurement part 151 .
  • the temperature measuring unit 151 is a positive temperature coefficient thermistor.
  • the span of the resistance value changing with the temperature is larger, and the temperature of the surrounding environment can be more accurately reflected.
  • the temperature coefficient of resistance of the heat generating portion 131 is lower than the temperature coefficient of resistance of the temperature measuring portion 151 . Since the temperature coefficient of resistance of the heating part 131 is lower than the temperature coefficient of resistance of the temperature measuring part 151, the heating and the temperature measuring function are separated, the energy consumption on the heating circuit 130 is low and the cost is low.
  • the material of the heating part 131 is selected from one of nickel-chromium alloy, tantalum alloy, gold-chromium alloy and nickel-phosphorus alloy.
  • the use of the above materials can make the temperature coefficient of resistance of the heating part 131 lower. At this time, the resistance value of the heating part 131 is very small with temperature, the resistance value is stable and reliable, and the heat generation is stable.
  • the material of the temperature measuring part 151 is selected from at least one of copper, nickel, manganese and ruthenium. Further, the material of the temperature measuring part 151 is selected from one of copper, nickel, manganese and ruthenium.
  • the internal resistance of the temperature measuring part 151 increases, and the larger the temperature coefficient of resistance of the temperature measuring part 151 is, the more obvious the increase in internal resistance is, and the greater the current change in the temperature measuring circuit, the easier it is Measured by a current sensor, the measurement result is more accurate.
  • the temperature-measuring electrode 153 is also made of a low-resistivity resistance paste. More specifically, the third electrode 153a and the fourth electrode 153b are also made of a low-resistivity resistance paste.
  • the temperature-measuring electrode 153 can be formed by transferring a low-resistivity resistance paste onto the insulating layer 113 by means of silk-screen paste, and then sintering.
  • the low resistivity resistance paste for preparing the temperature measuring electrode 153 includes at least one of silver (Ag) and gold (Au).
  • the resistance paste for preparing the temperature measuring electrode 153 contains Ag, Au, gold alloy or silver alloy.
  • the low-resistivity resistance paste for preparing the temperature-measuring electrode 153 also contains a binder.
  • a binder for example inorganic binders. It can be understood that the proportion of the binder in the low-resistivity resistance paste is larger than that in the high-resistivity resistance paste.
  • the preparation method of the temperature measuring electrode 153 is not limited to this, and other methods commonly used in the art may also be used.
  • the square resistance of the temperature measuring electrode 153 does not exceed 5 m ⁇ / ⁇ . Further, the square resistance of the temperature measuring electrode 153 is 1 m ⁇ / ⁇ ⁇ 5 m ⁇ / ⁇ . The resistance of the temperature measuring electrode 153 is much smaller than the resistance of the temperature measuring part 151 . For example, the resistance of the temperature measuring electrode 153 is 0.1 ⁇ ⁇ 0.5 ⁇ . In this way, the temperature measuring electrode 153 hardly generates heat when energized, which reduces the temperature of the mounting base 101 and saves energy consumption. Referring to FIG.
  • a lead 140 is also provided on the temperature measuring electrode 153 , and the lead 140 on the temperature measuring electrode 153 is used to electrically connect the power supply and the temperature measuring electrode 153 ;
  • the lead 140 is used to electrically connect the power supply and the heating electrode 133; the lead 140 on the temperature measuring electrode 153 and the lead 140 on the heating electrode 133 are arranged at intervals.
  • the heating electrode 133 is welded with the lead 140, and the temperature measuring electrode 153 is also welded with the lead 140.
  • the welding point between the temperature measuring electrode 153 and the lead 140 and the welding point between the heating electrode 133 and the lead 140 are located in the mounting seat 101;
  • the plane where the lead 140 of the temperature measuring electrode 153 is located is not coplanar with the plane where the lead 140 of the heating electrode 133 is located.
  • the welding point between the temperature measuring electrode 153 and the lead 140 is closer to the bottom surface 115 of the base body 110 than the welding point between the heating electrode 133 and the lead 140 . In the embodiment shown in FIG.
  • the lead 140 of the temperature measuring electrode 153 and the heating electrode 133 are located on different sides of the insulating layer 113 away from the body 111 ;
  • the other part is located on the side of the insulating layer 113 close to the body 111 , and the temperature measuring electrode 153 is connected to the lead 140 through the electrode located on the side of the insulating layer 113 close to the body 111 .
  • the number of heating electrodes 133 is two
  • the number of temperature measuring electrodes 153 is two
  • the number of leads is four
  • each of the two heating electrodes 133 and the two temperature measuring electrodes 153 is connected to a lead wire.
  • the heating body 100 further includes a protective layer 170 for protecting the heating part 131 , the temperature measuring part 151 and the temperature measuring electrode 153 located in the heating region 119 .
  • the protective layer 170 is located in the heat-generating area 119 , and the protection zone covers the heat-generating portion 131 , all the temperature-measuring portions 151 and some of the temperature-measuring electrodes 153 .
  • the protective layer 170 is a glaze layer.
  • the protective layer 170 is a glaze layer, since the glaze layer has a smooth surface, the protective layer 170 protects the components of the heating area 119 and also makes the heating element 100 have the effect of preventing the adhesion of smoke oil, making it easier to remove and insert the object to be heated.
  • the material of the protective layer 170 is not limited to glaze, but can also be other materials.
  • the thickness of the protective layer 170 is 0.1 mm ⁇ 0.5 mm.
  • the thickness of the protective layer 170 is greater than 0.5 mm, it is not conducive to conduct the heat of the heating portion 131 to the object to be heated.
  • the thickness of the protective layer 170 is less than 0.1 mm, the protective layer 170 may be damaged or easily detached.
  • the diameter of the base 111a is 2mm-5mm, the length of the base 111a is 15mm-25mm, and the length of the main body 111 is 18mm-30mm; the length of the heating part 131 in the longitudinal direction of the base 111a It is 8 mm to 12 mm, and the width of the heating wire 131a is 0.5 mm to 1.5 mm.
  • the diameter of the base portion 111a is 3mm, the length of the base portion 111a is 16mm, and the length of the main body 111 is 20mm; the length of the heating portion 131 in the longitudinal direction of the base portion 111a is 10mm, The width is 0.8mm.
  • the dimensions of the main body 111 , the base 111 a and the heating wire 131 a are not limited to the above, and can also be adjusted according to requirements.
  • the region from the side of the heating electrode 133 close to the heating portion 131 to the bottom surface 115 of the base body 110 is the electrode setting area 117 .
  • the mounting seat 101 is located in the electrode setting area 117 .
  • the mounting seat 101 is used to fix the heating body 100
  • the mounting seat 101 is a hollow structure
  • the mounting seat 101 is fixedly connected with the base body 110 of the heating body 100
  • the connection between the mounting seat 101 and the base body 110 is located at the heating electrode 133 is close to the side of the bottom surface 115 .
  • connection between the mounting seat 101 and the base body 110 By arranging the connection between the mounting seat 101 and the base body 110 on the side of the heating electrode 133 close to the bottom surface 115 , the part of the mounting seat 101 in contact with the base body 110 is kept away from the heating part 131 and closer to the bottom surface 115 , thereby reducing the heat of the heating part 131 The influence on the mounting seat 101 increases the service life of the mounting seat 101 . More specifically, the connection between the mounting seat 101 and the base 110 is located between the heating electrode 133 and the bottom surface 115 , and the connection between the mounting seat 101 and the base 110 is spaced from the heating electrode 133 and the bottom surface 115 ; The connection is on the side close to the bottom surface 115 and adjacent to the heating electrode 133 .
  • the position where the mounting seat 101 and the base body 110 are clamped or abutted is located between the heating electrode 133 and the bottom surface 115
  • the position where the mounting seat 101 and the base body 110 are clamped or abutted is located between the heating electrode 133 and the bottom surface 115 . spaced apart from each other; or the position where the mounting seat 101 and the base body 110 are held or abutted is on the side close to the bottom surface 115 and adjacent to the heating electrode 133 .
  • the heating element 10 further includes a holder 105 .
  • the holder 105 is sleeved on the base body 110 and fixed with the base body 110 .
  • the heating element 100 is fixed in the mounting seat 101 through the cooperation of the clamping member 105 and the mounting seat 101 .
  • the holder 105 is located between the connection between the heating electrode 133 and the lead and the connection between the temperature measuring electrode 153 and the lead; part of the temperature measuring electrode 153 is accommodated in the mounting seat.
  • the holding member 105 may also be located at other positions in the mounting base 101 , for example, the holding member 105 is located between the temperature measuring electrode 153 and the bottom surface 115 .
  • the holder 105 has through holes or slots for the leads 140 to pass through.
  • the holder 105 is a flange.
  • the holder 105 is integrally formed with the base body 110 of the heating body 100 .
  • the holder 105 may be omitted.
  • the heating element 100 can be installed on the mounting seat 101 by means of interference fit.
  • the temperature measuring electrode 153 can also be completely accommodated in the mounting seat 101 .
  • the connection between the mounting seat 101 and the base 110 may also be located on the side of the heating electrode 133 close to the heating part 133 or on the heating electrode 133, in this case, the mounting seat 101 is closer to the heating part. 131, easily affected by heat and shortened life.
  • the mounting base 101 includes a mounting base 101a and a mounting cover 101b.
  • the mounting base 101a and the mounting cover 101b may be connected movably or fixedly.
  • the mounting seat 101 is snap-connected to the mounting cover 101b.
  • through holes are provided on the mounting base 101a and/or the mounting cover 101b for the lead wires 140 to pass through; the mounting base 101 and/or the mounting cover 101b are provided with a plurality of lead wire grooves, and each lead wire 140 is placed in a different in the lead grooves so that the leads 140 are spaced apart.
  • the heating element 10 further includes a sealing member 103 , the sealing member 103 is sleeved on the heating body 100 , and the sealing member 103 is located at the connection between the heating portion 131 and the heating electrode 133 .
  • the sealing member 103 is used to prevent the products formed after heating (such as the atomized liquid produced by heating tobacco or pods) from flowing into the mounting seat 101 along the surface of the heating element 100, so that the electrodes in the mounting seat 101 are affected.
  • the sealing member 103 is in contact with the mounting seat 101 and partially accommodated in the mounting seat 101 .
  • the material of the sealing member 103 is silica gel.
  • the sealing member 103 may also be made of other materials.
  • the sealing member 103 and the heating element 100 are loosely fitted, as long as the atomized liquid generated by heating the tobacco or the pod is difficult to enter into the mounting seat 101 through the gap.
  • the seal 103 may be omitted. When the sealing member 103 is omitted, a design in which the mounting seat 101 also has the function of the sealing member 103 can be adopted.
  • the end of the mounting seat 101 close to the connection between the heating electrode 133 and the heating part 131 can be used to prevent the product formed after heating from flowing into the mounting seat 101 settings.
  • a protector can also be provided in the mounting seat 101 to protect the electrodes.
  • the present application further provides a heating element 20 according to another embodiment.
  • the structure of the heating element 20 is substantially the same as that of the heating element 10 .
  • the heating assembly 20 includes a mounting seat 201 , a heating body 200 mounted on the mounting seat 201 and a sealing member 203 ; the sealing member 203 is sleeved on the heating body 200 and is close to the mounting seat 201 .
  • the heating body 200 includes a base body 210 and a heating circuit 230 and a temperature measuring circuit 250 which are arranged on the base body 210 and are independent of each other.
  • the heating circuit 230 includes a heating part 231 and a heating electrode 233.
  • the temperature measurement circuit 250 includes a temperature measurement part 251 and a temperature measurement electrode 253, the temperature measurement part 251 is located in the heating area away from the mounting seat 201, and the temperature measurement electrode 253 extends from the heating area to Inside the mounting base 201, the temperature measuring electrode 253 includes a third electrode 253a and a fourth electrode 253b.
  • the difference between the heating element 20 and the heating element 10 is that in the heating element 20:
  • the base body 210 is in the shape of a strip.
  • the body 211 is in the shape of a strip, and the body 211 has a first protrusion 211c and a second protrusion 211d, the first protrusion 211c and the second protrusion 211d are spaced apart, and the first protrusion 211c is close to the heating electrode 233 , the second protrusion 211d is close to the bottom surface of the base body 210 .
  • the mounting base 201a of the mounting seat 201 is provided with a sliding groove 201c, and the mounting cover 201b is provided with a sliding block 201d.
  • the mounting base 201a and the mounting cover 201b are movably connected through the cooperation between the sliding groove 201c and the sliding block 201d.
  • the mounting base 201a is also provided with a holding groove 201f, the holding groove 201f is located on the side of the heating electrode 233 close to the bottom surface of the base 210, and the second protrusion 211d is held in the holding groove 201f, so that the mounting base 201 and the base 110 fixed connection.
  • guide protrusions are formed on the installation base 201a to facilitate the installation of the heating element 200 .
  • the upper and lower surfaces of the body 211 are provided with insulating layers 213 , and a protective layer 270 is also provided on the insulating layer 213 close to the lower surface of the body 211 ; the heating electrodes 233 and the temperature measuring electrodes 253 are coplanar.
  • An embodiment of the present application further provides a heating device, and the heating device includes any of the above heating components.
  • the structure of the heating component of Example 1 is shown in Figure 1, wherein the base of the heating body is zirconia ceramics, the diameter is 3mm, the length of the base is 16mm, and the thickness of the insulating layer wound on the base is 0.3mm.
  • the length of the heating wire in the length direction of the base is 10mm, the width of the heating wire is 0.8mm, the maximum length of the heating wire in the width direction of the base is 5.06mm, and the length of the temperature measuring wire in the length direction of the base is 4mm.
  • the distance from the temperature wire to the two heating wires is equal, the resistance of the heating part at room temperature is 1 ⁇ , the square resistance of the heating part is 100m ⁇ / ⁇ , the main material of the heating part is Ni; the resistance of the temperature measuring part at room temperature is 10 ⁇ , the temperature measurement The square resistance of the part is 150m ⁇ / ⁇ , the main material of the temperature measuring part is AgPb, the temperature measuring electrode and the heating electrode are electrodes made of silver paste.
  • Infrared temperature measurement was used to test the constant temperature stability in the initial stage of the heating element of Example 1, and the results are shown in FIG. 13 .
  • the abscissa is time, the length of each square in the horizontal direction represents 15s, and the ordinate is temperature (°C).
  • the temperature measuring part of the heating element of Example 1 can accurately reflect the real-time temperature of the heating element.
  • the maximum temperature of the heating element has a small overshoot to 345°C, and then gradually stabilizes the temperature to 340°C. is around 5°C and then reaches a plateau temperature considerably. It can be seen that, according to the above, setting the temperature measuring part in the heat generating area far from the electrode setting area can well improve the problem that the temperature of the heat generating body is difficult to control uniformly in the initial stage.
  • the structure of the heating element of Comparative Example 1 is roughly the same as that of Example 1, the difference is that, as shown in FIG. 14 , the temperature measurement part 351 of The square resistance of the portion 351 is the same as that of the first embodiment.
  • FIG. 15 The constant temperature stability in the initial stage of the heating element of Comparative Example 1 is shown in FIG. 15 .
  • the abscissa is time, the length of each square in the horizontal direction represents 15s, and the ordinate is temperature (°C).
  • the maximum temperature of the heating element has a large overshoot and reaches 362°C, and then the temperature gradually stabilizes and reaches 338°C.
  • the high temperature overshoot reaches about 24°C; and this temperature overshoot will vary greatly with the difference of the heating element itself, which will make it more difficult to control the initial temperature of the heating element in the mass production process.

Landscapes

  • Resistance Heating (AREA)
  • Control Of Resistance Heating (AREA)

Abstract

Corps de génération de chaleur (100, 200), ensemble de génération de chaleur (10, 20) et dispositif de chauffage. Le corps de génération de chaleur (100, 200) comprend un corps de base (110, 210), un circuit de génération de chaleur (130, 230) et un circuit de mesure de température (150, 250). Le corps de base (110, 210) est pourvu d'une surface inférieure (115), le corps de base (110, 210) est pourvu d'une zone de génération de chaleur (119, 319) et d'une zone d'agencement d'électrode (117) adjacente à la zone de génération de chaleur (119, 319), et la zone d'agencement d'électrode (117) est proche de la surface inférieure (115) par rapport à la zone de génération de chaleur (119, 319) ; le circuit de génération de chaleur (130, 230) est situé sur le corps de base (110, 210), et le circuit de génération de chaleur (130, 230) comprend une partie de génération de chaleur (131, 231) et une électrode de génération de chaleur (133, 233) électriquement connectée à la partie de génération de chaleur (131, 231), la partie de génération de chaleur (131, 231) étant située dans la zone de génération de chaleur (119, 319), et l'électrode de génération de chaleur (133, 233) étant située dans la zone d'agencement d'électrode (117) ; le circuit de mesure de température (150, 250) est situé sur le corps de base (110, 210), le circuit de mesure de température (150, 250) et le circuit de génération de chaleur (130, 230) sont disposés à distance l'un de l'autre, et le circuit de mesure de température (150, 250) comprend une partie de mesure de température (151, 251, 351) et une électrode de mesure de température (153, 253) électriquement connectée à la partie de mesure de température (151, 251, 351) ; et la zone de génération de chaleur (119, 319) comprend une zone à haute température (119a), et la partie de mesure de température (151, 251, 351) est située dans la zone à haute température (119a). Dans un étage de chauffage initial du corps de génération de chaleur (100, 200), l'écart entre une température réelle et une température planifiée est faible.
PCT/CN2021/096296 2020-09-30 2021-05-27 Corps de génération de chaleur, ensemble de corps de génération de chaleur et dispositif de chauffage WO2022068231A1 (fr)

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EP21873893.8A EP4190191A1 (fr) 2020-09-30 2021-05-27 Corps de génération de chaleur, ensemble de corps de génération de chaleur et dispositif de chauffage
JP2022574737A JP2023528910A (ja) 2020-09-30 2021-05-27 発熱体、発熱アセンブリ及び加熱装置
KR1020227045954A KR20230016681A (ko) 2020-09-30 2021-05-27 발열체, 발열 어셈블리 및 가열 장치

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CN202011066148.7A CN112244359A (zh) 2020-09-30 2020-09-30 发热体、发热组件和加热装置
CN202011066148.7 2020-09-30

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CN112244359A (zh) * 2020-09-30 2021-01-22 深圳麦时科技有限公司 发热体、发热组件和加热装置
WO2022241693A1 (fr) * 2021-05-19 2022-11-24 深圳葭南科技有限公司 Évaporateur à chauffage électrique pour mesure de température précise
CN113424991A (zh) * 2021-06-28 2021-09-24 深圳麦时科技有限公司 发热组件和气溶胶形成装置
CN113455715A (zh) * 2021-07-05 2021-10-01 深圳麦时科技有限公司 气溶胶产生装置及其加热组件
CN217564930U (zh) * 2021-09-08 2022-10-14 深圳麦时科技有限公司 一种气溶胶产生装置及其加热组件
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