WO2021143830A1 - Ensemble de chauffage moulé par injection, moule d'injection et procédé de moulage par injection - Google Patents

Ensemble de chauffage moulé par injection, moule d'injection et procédé de moulage par injection Download PDF

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Publication number
WO2021143830A1
WO2021143830A1 PCT/CN2021/072118 CN2021072118W WO2021143830A1 WO 2021143830 A1 WO2021143830 A1 WO 2021143830A1 CN 2021072118 W CN2021072118 W CN 2021072118W WO 2021143830 A1 WO2021143830 A1 WO 2021143830A1
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WO
WIPO (PCT)
Prior art keywords
base
heating
heating element
heat
injection
Prior art date
Application number
PCT/CN2021/072118
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English (en)
Chinese (zh)
Inventor
李辉
刘翔
Original Assignee
深圳市博迪科技开发有限公司
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Publication of WO2021143830A1 publication Critical patent/WO2021143830A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds

Definitions

  • the invention belongs to the technical field of heating elements for a novel smoking set, and particularly relates to an injection-molded heating component, an injection mold for the heating component, and an injection method.
  • the heating components used in most current research or products include a heating element and a base for fixing the heating element.
  • the base has a through hole for the heating element to pass through.
  • the shape of the through hole is usually the same as that of the heating element.
  • the shape of the heating element is matched, for example, it can be any shape such as a circle, a rectangle, a slit, and the like.
  • the material requirements of the heating element and the base are different.
  • the material of the heating element requires good thermal conductivity, high strength, and not easy to bend, such as metal and ceramics.
  • the base of the heating element is required to be made of insulating material with good heat insulation effect. Therefore, the heating element and the base are generally prepared separately, and the two can be connected when in use.
  • connection between the two is mostly through mechanical splicing or pressing, which will inevitably cause a gap between the base of the heating element and the heating element.
  • the residue after smoking the heated cigarette, such as The tar will penetrate under the heating element base and further corrode the control board or other components.
  • the heating element shell and heating circuit were prepared independently, and the heating circuit needed to be manually installed in the groove in the heating element shell, which was complicated to manufacture and install.
  • the first aspect of the present invention provides an injection-molded heating component, the heating component includes: a heating element 1, a base 2;
  • the heating element 1 includes a heating circuit 11 and a heating body casing wrapped around the heating circuit 11, and there is no gap between the heating circuit 11 and the heating body casing.
  • the end has a heating circuit pin 3 protruding outside the heating body shell;
  • the lower part of the heating element 1 is surrounded by the base 2 and there is no gap in the contact between the heating element 1 and the base 2;
  • the heating circuit pins 3 are exposed outside the base 2.
  • the heating element shell has good thermal conductivity, and its material includes any material that does not deform at 600 degrees Celsius and can be molded by an injection process, such as metals, alloys, and some special ceramics such as composite ceramics.
  • At least a part of the outer surface of the heating circuit 11 covered by the heating body shell is provided with an insulating layer.
  • the heating element shell is made of an insulator, the part of the outer surface of the heating circuit 11 covered by the heating element shell does not have an insulating layer.
  • the heating circuit 11 can generate a stable heat source to heat the smoking article to generate smoke for the human body to inhale.
  • the portion of the heating circuit 11 covered by the heating element shell is provided with protrusions or depressions.
  • the heating circuit pin 3 is connected to the power supply to provide the power required for heating, and can also be used to measure the temperature of the heating body, and play the role of transmitting control signals.
  • the base 2 is a cylindrical body, and a sealing ring groove 2-1 is provided on the outer peripheral surface thereof, and a sealing ring is provided in the sealing ring groove 2-1.
  • the sealing ring is used to prevent cigarette residues from penetrating downward from the outer edge of the base 2.
  • the peripheral edge of the base 2 is provided with a positioning groove.
  • the positioning groove is used for guiding and positioning the heating element 1 so that the installation position and direction in different smoking articles are kept consistent.
  • the bottom of the base 2 is also provided with a fixed post.
  • the fixing post is used to fix the heating component to the parts of the smoking set.
  • the portion of the heating element 1 surrounded by the base 2 is provided with protrusions.
  • the heating element 1 further includes a temperature measurement circuit, and the temperature measurement pin is also the heating circuit pin 4.
  • the heating element 1 has a rod-like or sheet-like structure with a sharp point.
  • the base 2 is selected from materials that do not deform at 320 degrees Celsius, that is, materials that can withstand a temperature of 320 degrees Celsius.
  • the base 2 is made of a high temperature resistant material, the high temperature resistant is the temperature that the heating element 1 can withstand at the operating temperature, and the operating temperature of the heating element 1 is 280°C-480°C. At this time, the temperature of the base 2 itself is about 200-320 degrees Celsius, and the base 2 is selected from materials that do not deform at 200-320 degrees Celsius.
  • the base 2 is preferably a PEEK polyether ether ketone material.
  • a second aspect of the present invention provides an injection mold for the heating component of the first aspect, and the mold includes:
  • the mold base 7 is provided with a heating element forming part 5, the size and shape of which are adapted to the size of the heating element 1; the mold base 7 is also provided with a base forming part 6, which is arranged on the heating element Below the molding place 5, the size and shape are consistent with the base 2;
  • the base injection pipe 8 is in fluid communication with the base molding part 6;
  • the heating element injection pipe 4 is in fluid communication with the heating element molding place 5.
  • the mold base 7 is the carrier of the entire mold, and a material with a higher density and higher resistance to the injection temperature of the heating element, such as stainless steel, T10, CrWMn, Cr12MoV, T8, etc., is selected.
  • a "herringbone”-shaped base injection pipe 8 is provided next to the base forming part 6, and the base molding part 6 is connected to the base injection pipe 8; the "herringbone” shaped base injection pipe 8 is used to input the injection slurry into the base Molding place 6.
  • the heating element molding part 5 is provided with a "herringbone” shaped heating element injection pipe 4, the heating element molding part 5 is connected to the heating element injection pipe 4, and the "herringbone” shaped heating element injection pipe 4 is used for The heating body slurry is input into the heating body forming place 5.
  • a third aspect of the present invention provides an injection molding method for the heat generating component described in the first aspect.
  • Using the injection mold described in the second aspect includes the following steps:
  • the heating circuit 11 into the heating body forming part, and the heating circuit pins 3 are exposed outside the heating body forming part, keeping the base forming part 6 and the heating body forming part 5 out of fluid communication
  • the prepared heating element slurry is sent into the heating element injection pipe 4, and the heating element slurry enters the heating element molding place 5 along the heating element injection pipe 4, and the heating element is molded Place 5 is filled with the heating element slurry, and then cooled to obtain the heating element 1;
  • the base molding part 6 is filled with the injection slurry, cooled, and taken out to obtain the heat generating component described in the first aspect.
  • the temperature of the heating element 1 during injection molding is 600-2000°C; the temperature of the base 2 during injection molding is 380-400°C.
  • the base and the heating element are generally made separately and independently.
  • the present invention designs for the first time a heating element in which the base and the heating element are integrally formed.
  • the base and the heating element are integrally formed by in-mold injection molding of the base, which can realize the sealing of the connection between the heating element and the base and prevent cigarettes after smoking The residue penetrates downward to better protect the components under the heating element base and improve the use performance of the smoking set.
  • the heating element shell and the heating circuit were independently prepared, and the heating circuit needed to be manually installed in the groove in the heating body shell, which was complicated to manufacture and install.
  • the present invention simplifies the manufacturing process of the heating body, The body shell is also fixed as a whole by injection molding, while ensuring that the heating circuit and the heating body shell are tightly sealed, and the heating circuit will not fall off.
  • the base is a concave cylindrical body, a sealing ring groove is provided in the concave part of the base, and a sealing ring is arranged in the sealing ring groove to prevent cigarette residues from penetrating down from the outer edge of the base , Further improve the sealing effect of the base.
  • the preparation process of the invention is simple, and the sealing durability of the heating element and the base is good.
  • Fig. 1 is a schematic diagram of the overall structure of the heating component of the first embodiment.
  • Fig. 2 is a schematic diagram of the heating circuit structure of the first embodiment.
  • Fig. 3 is a schematic diagram of the structure of the injection mold of Example 3 in the state of injection of the heating element.
  • Fig. 4 is a schematic diagram of the structure of the injection mold of Example 3 in the injection molding base state.
  • an injection-molded heating component the heating component includes: a heating element 1, a base 2;
  • the heating element 1 includes a heating circuit and a heating body casing wrapped around the heating circuit, there is no gap between the heating circuit 11 and the heating body casing, and the end of the heating circuit 11 has Heating circuit pin 3 protruding outside the heating body shell;
  • the lower part of the heating element 1 is surrounded by the base 2 and there is no gap in the contact between the heating element 1 and the base 2;
  • the heating circuit pins 3 are exposed outside the base 2.
  • the heating element 1 and the base 2 do not have any additional sealing materials or seals at the contact point, and the heating element 1 and the base 2 are only sealed by the close contact; and the heating circuit 11 and the heating There is no additional sealing material or sealing element at the contact between the two body shells, and the sealing is only achieved by the close contact between the heating circuit 11 and the heating body shell.
  • the base 2 is a cylindrical body, and a sealing ring groove 2-1 is provided on the outer peripheral surface thereof, and a sealing ring is provided in the sealing ring groove 2-1.
  • the part of the outer surface of the heating circuit 11 covered by the heating body shell is provided with an insulating layer.
  • the portion of the heating element 1 surrounded by the base 2 is provided with protrusions.
  • the heat generating body shell is selected from metals.
  • the base 2 is selected from materials that do not deform at 320 degrees Celsius.
  • the mold base 7 is provided with a heating element forming part 5, the size and shape of which are adapted to the size of the heating element 1; the mold base 7 is also provided with a base forming part 6, which is arranged on the heating element Below the molding part 5, it is in fluid communication or not in communication with the heating element molding part 5, and the size and shape are the same as those of the base 2;
  • the base injection pipe 8 is in fluid communication with the base molding part 6;
  • the heating element injection pipe 4 is in fluid communication with the heating element molding place 5.
  • the temperature of the heating element 1 during injection molding is 1000°C.
  • the temperature of the base 2 during injection molding is 380°C.
  • the heating element injection pipe 4 is a rubber pipe that can withstand a high temperature of 2500 degrees Celsius.
  • the injection molding pipe 8 of the base is a rubber pipe that can withstand a high temperature of 400 degrees Celsius.
  • an injection molding method for the heating component described in Example 1, which uses the injection mold described in Example 2, includes the following steps:
  • the heating circuit 11 into the heating body forming part, and the heating circuit pins 3 are exposed outside the heating body forming part, keeping the base forming part 6 and the heating body forming part 5 out of fluid communication
  • the prepared metal slurry is fed into the heating element injection pipe 4, and the metal slurry enters the heating element forming part 5 along the heating element injection pipe 4, and the heating element is formed in the forming part 5 Fill the metal slurry and then cool to obtain the heating element 1;

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un ensemble de chauffage moulé par injection, et un moule d'injection et un procédé de moulage par injection pour l'ensemble de chauffage. L'ensemble de chauffage comprend un corps chauffant (1) et une base (2), le corps chauffant (1) comprenant un circuit de chauffage (11) et une coque de corps chauffant recouvrant le circuit de chauffage (11), et aucun espace n'est laissé au niveau de la position de contact du circuit de chauffage (11) et de la coque de corps chauffant ; la partie inférieure du corps chauffant (1) est maintenue à demeure par la base (2), et aucun espace n'est laissé au niveau de la position de contact du corps chauffant (1) et de la base (2). La base (2) et le corps chauffant (1) sont moulés par injection, et le circuit de chauffage (11) et la coque de corps chauffant sont moulés par injection, de telle sorte que le raccord du corps chauffant (1) et de la base (2) puisse être étanche, des résidus de cigarette, une fois la cigarette fumée, sont empêchés de se répandre vers le bas, et les performances d'utilisation d'un ustensile de cigarette sont améliorées.
PCT/CN2021/072118 2020-01-19 2021-01-15 Ensemble de chauffage moulé par injection, moule d'injection et procédé de moulage par injection WO2021143830A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010059317.8A CN111134375A (zh) 2020-01-19 2020-01-19 一种注塑成型的发热组件、注塑模具和注塑方法
CN202010059317.8 2020-01-19

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Publication Number Publication Date
WO2021143830A1 true WO2021143830A1 (fr) 2021-07-22

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CN (1) CN111134375A (fr)
WO (1) WO2021143830A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111134375A (zh) * 2020-01-19 2020-05-12 深圳市博迪科技开发有限公司 一种注塑成型的发热组件、注塑模具和注塑方法
CN113171734B (zh) * 2020-12-01 2023-11-14 深圳市卓力能技术有限公司 一种发热组件及其组装方法、气溶胶发生装置

Citations (8)

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Publication number Priority date Publication date Assignee Title
US10065005B2 (en) * 2016-12-23 2018-09-04 S.E. Research And Design Llc Vaporizing devices and related methods for controlling an amount of substance being vaporized for consumption by a user
CN207947908U (zh) * 2017-12-29 2018-10-09 深圳市华诚达精密工业有限公司 一种电子烟双发热片的发热器
CN109077361A (zh) * 2018-09-21 2018-12-25 李东 一种发热组件及电子烟
CN109938411A (zh) * 2019-03-27 2019-06-28 深圳市长能汇科科技有限公司 一种包含插拔式可拆装发热组件的烟具
CN209463297U (zh) * 2018-09-21 2019-10-08 深圳麦克韦尔科技有限公司 烘烤烟具及其加热组件
CN209788473U (zh) * 2018-11-28 2019-12-17 冉卫敏 一种电子烟发热元件
CN111134375A (zh) * 2020-01-19 2020-05-12 深圳市博迪科技开发有限公司 一种注塑成型的发热组件、注塑模具和注塑方法
CN211932579U (zh) * 2020-01-19 2020-11-17 深圳市博迪科技开发有限公司 一种注塑成型的发热组件和注塑模具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10065005B2 (en) * 2016-12-23 2018-09-04 S.E. Research And Design Llc Vaporizing devices and related methods for controlling an amount of substance being vaporized for consumption by a user
CN207947908U (zh) * 2017-12-29 2018-10-09 深圳市华诚达精密工业有限公司 一种电子烟双发热片的发热器
CN109077361A (zh) * 2018-09-21 2018-12-25 李东 一种发热组件及电子烟
CN209463297U (zh) * 2018-09-21 2019-10-08 深圳麦克韦尔科技有限公司 烘烤烟具及其加热组件
CN209788473U (zh) * 2018-11-28 2019-12-17 冉卫敏 一种电子烟发热元件
CN109938411A (zh) * 2019-03-27 2019-06-28 深圳市长能汇科科技有限公司 一种包含插拔式可拆装发热组件的烟具
CN111134375A (zh) * 2020-01-19 2020-05-12 深圳市博迪科技开发有限公司 一种注塑成型的发热组件、注塑模具和注塑方法
CN211932579U (zh) * 2020-01-19 2020-11-17 深圳市博迪科技开发有限公司 一种注塑成型的发热组件和注塑模具

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