A heating element and a cigarette lighter

Abstract

This invention provides a heating assembly comprising a heating element and a heat insulation element. The heating element has an extension portion that extends continuously from one of the electrodes, bends back and forth, and then extends to the other electrode. The extension portion forms bends at the bends, and electrically isolated heating portions are formed along the extended direction after the bends. The heating portions are connected end-to-end, and the bends are fixedly connected to the heat insulation element. Through this design, the electrically isolated heating portions, because both ends are fixedly connected to the heat insulation element via bends, have better connection stability and strength, and are less prone to deformation. This overcomes the shortcomings of existing spiral structures, which are prone to deformation during long-term use, potentially leading to short circuits between the spiral heating wires and low product durability.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette lighters, specifically a portable cigarette lighter with a Type-C interface that can be connected to mobile phones and other terminals. Background Technology

[0002] Utility model patent CN221098691U discloses an airflow-sensing cigarette lighter, including a housing, a power supply, a first circuit board, a charging interface, and a bottom cover at the bottom of the housing. The bottom cover has an opening corresponding to the charging interface. The upper part of the housing has a ceramic seat and a heating wire on the ceramic seat. The heating wire is connected to the first circuit board. The charging interface is a Type-C charging interface. The upper surface of the bottom cover has extension pieces arranged opposite to each other on both sides of the opening. The two extension pieces are located inside the housing and are spaced apart to form a receiving groove for accommodating the Type-C charging interface. The inner wall of the receiving groove has a positioning member to restrict the lateral sliding of the Type-C charging interface. The outer edge of the lower end of the Type-C charging interface abuts against the bottom cover and is located at the outer periphery of the opening. The power supply is located above the Type-C charging interface to restrict the axial sliding of the Type-C charging interface.

[0003] In existing cigarette lighters, the heating element includes a ceramic base and a heating wire. The existing heating wires are all continuously extending spiral structures. The two ends of this spiral structure serve as electrodes connected to a circuit board. This spiral structure acts as the heating element; after the cigarette lighter is activated, the heating element illuminates and reaches the ignition temperature. The user inserts a cigarette and presses it against the heating element of the spiral structure to complete the lighting process. The drawback of existing heating elements is that because the heating element of the spiral structure is completely attached to the ceramic base, the heating temperature may decrease or fail to reach the ignition temperature. Therefore, existing heating elements are generally only fixed to the ceramic base at both ends, leaving the entire heating element suspended. This leads to the spiral structure being prone to deformation during long-term use, potentially causing short circuits between the spiral heating wires, resulting in low product durability. Utility Model Content

[0004] To address the technical problems and defects of existing technologies, this utility model provides a heating component and a cigarette lighter.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model provides a heating assembly, including a heating element and a heat insulation element. The heating element is fixed inside the heat insulation element. The heating element has two electrodes, which are respectively connected to a circuit board. The heating element has an extension portion that extends continuously from one of the electrodes and bends back and forth to the other electrode. The extension portion forms a bend at the bend and forms electrically isolated heating portions in the extension direction after the bend. The heating portions are connected end to end to each other, and the bend is fixedly connected to the heat insulation element.

[0007] Preferably, the heating elements are arranged in parallel to each other.

[0008] Preferably, the bent portion has an outwardly extending fixing portion, and the bent portion is embedded in the heat insulation body and fixedly connected to the heat insulation body through the fixing portion.

[0009] Preferably, the fixing part is a T-shaped structure or a semi-T-shaped structure.

[0010] Preferably, the heat insulation body is made of ceramic material, the heating body is made of metal material, and the heating body is sintered and fixed together with the heat insulation body by embedding it into the heat insulation body forming mold during the heat insulation body sintering process.

[0011] Preferably, the heat insulation body is cylindrical, and the heat insulation body has a hollow hole corresponding to the position of the heating part, and the heat insulation body has two electrode grooves corresponding to the two electrodes.

[0012] This utility model also provides a cigarette lighter, including a housing, a circuit board built into the housing, a charging interface and a heating component, wherein the heating component is electrically connected to the circuit board, and the heating component is the aforementioned heating component.

[0013] The beneficial effects of this utility model are:

[0014] The heating assembly provided by this utility model includes a heating element and a heat insulation element. The heating element has an extension portion that extends continuously from one of the electrodes and bends back and forth before extending to the other electrode. The extension portion forms a bend at the bend, and electrically isolated heating portions are formed along the extension direction after the bend. The heating portions are connected end-to-end, and the bend is fixedly connected to the heat insulation element. Through this design, the electrically isolated heating portions, because both ends are fixedly connected to the heat insulation element via bends, have better connection stability and strength, and are less prone to deformation. This overcomes the shortcomings of existing spiral structures, which are prone to deformation during long-term use, potentially leading to short circuits between the spiral heating wires and low product durability. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is an overall structural diagram from the first perspective of Embodiment 1;

[0017] Figure 2 This is an overall structural diagram from the second perspective of Embodiment 1;

[0018] Figure 3 This is an exploded view of the structure from the first perspective of Embodiment 1;

[0019] Figure 4 This is an exploded view of the structure from a second perspective in Example 1;

[0020] Figure 5 This is an overall structural diagram of Example 2;

[0021] Figure 6 This is an exploded view of the structure of Example 2;

[0022] In the figure: 1. Heating element; 11. Electrode; 12. Extension; 121. Bending part; 122. Heating part; 1211. Fixing part; 2. Heat insulation body; 21. Hole; 22. Fixing groove. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example

[0024] This embodiment provides a heating assembly, the overall structure of which is shown in the attached diagram from a first-view perspective. Figure 1 For its second-perspective overall structural diagram, please refer to the attached document. Figure 2 See the attached diagram for its first-person perspective structural breakdown. Figure 3 See the attached diagram for its second-view structural decomposition. Figure 4 The device includes a heating element 1 and a heat insulation element 2. The heating element 1 is fixed inside the heat insulation element 2. The heating element 1 has two electrodes 11, which are respectively connected to a circuit board (not shown in the figure). The heating element 1 has an extension 12 that extends continuously from one of the electrodes and bends back and forth to the other electrode. The extension 12 forms a bend 121 at the bend and a heating element 122 that is electrically isolated from each other in the extension direction after the bend. The heating elements 122 are connected end to end to each other and adjacent heating elements 122 are arranged parallel to each other. The bend 121 is fixedly connected to the heat insulation element 2.

[0025] In a preferred embodiment, the bent portion 121 has an outwardly extending fixing portion 1211, which is embedded in the heat insulation body 2 and fixedly connected to it. In this embodiment, the fixing portion 1211 is a T-shaped structure or a semi-T-shaped structure. It is understood that any other modified structure that extends outward from the bent portion 121 and is embedded in the heat insulation body 2 can achieve the purpose of enhancing the stability of the fixed connection.

[0026] Specifically, the heat insulation element 2 is made of ceramic material, and the heating element 1 is made of metal material. During the sintering process of the heat insulation element 2, the heating element 1 is sintered and fixed together with the heat insulation element 2 by being embedded in the heat insulation element molding mold. The advantage of integral sintering is that the fixed connection between the heating element 1 and the heat insulation element 2 is more stable, and the assembly process is simpler.

[0027] In a preferred embodiment, the heat insulation body 2 is designed as a flat cylinder. The flat cylinder shape makes the structure of the heating element 122 symmetrical, allowing cigarettes to be lit from both sides by contacting the heating element 122. This improves the design flexibility of the lighter and makes it easier for the user to use. The heat insulation body 2 has perforations 21 corresponding to the heating element 122, and two electrode grooves 22 corresponding to the two electrodes 11. The perforations 21 prevent cigarette ash from falling into the heat insulation body 2, allowing it to be discharged directly, reducing the difficulty of daily cleaning of the heating element. The electrode grooves 22 better secure the electrodes 11.

[0028] This embodiment also provides a cigarette lighter, including a housing, a circuit board built into the housing, a charging interface, and a heating component. The heating component is electrically connected to the circuit board, and the heating component is the heating component described above in this embodiment. It is understood that the cigarette lighter structures disclosed in the prior art include, but are not limited to, the aforementioned housing, circuit board, and charging interface. Those skilled in the art can select the specific components and connection methods based on the prior art. Example

[0029] This embodiment provides a heating component, the overall structure of which is shown in the attached diagram. Figure 5 See the attached diagram for its structural decomposition. Figure 6 The device includes a heating element 1 and a heat insulation element 2. The heating element 1 is fixed inside the heat insulation element 2. The heating element 1 has two electrodes 11, which are respectively connected to a circuit board (not shown in the figure). The heating element 1 has an extension 12 that extends continuously from one of the electrodes and bends back and forth to the other electrode. The extension 12 forms a bend 121 at the bend and a heating element 122 that is electrically isolated from each other in the extension direction after the bend. The heating elements 122 are connected end to end to each other and adjacent heating elements 122 are arranged parallel to each other. The bend 121 is fixedly connected to the heat insulation element 2.

[0030] In a preferred embodiment, the bent portion 121 has an outwardly extending fixing portion 1211, which is embedded in the heat insulation body 2 and fixedly connected to it. In this embodiment, the fixing portion 1211 is a T-shaped structure or a semi-T-shaped structure. It is understood that any other modified structure that extends outward from the bent portion 121 and is embedded in the heat insulation body 2 can achieve the purpose of enhancing the stability of the fixed connection.

[0031] Specifically, the heat insulation element 2 is made of ceramic material, and the heating element 1 is made of metal material. During the sintering process of the heat insulation element 2, the heating element 1 is sintered and fixed together with the heat insulation element 2 by being embedded in the heat insulation element molding mold. The advantage of integral sintering is that the fixed connection between the heating element 1 and the heat insulation element 2 is more stable, and the assembly process is simpler.

[0032] In this specific implementation, the heat insulation body 2 is designed as a cylinder. A perforated hole 21 is provided on the heat insulation body 2 corresponding to the position of the heating element 122. The electrode 11 passes through the perforated hole 22 and then through the heat insulation body 2. The perforated hole 21 prevents cigarette ash from falling into the heat insulation body 2, allowing the ash to be discharged directly through it, reducing the difficulty of daily cleaning of the heating element. The electrode 11's connection is more stable after passing through the perforated hole 21 and the heat insulation body 2.

[0033] This embodiment also provides a cigarette lighter, including a housing, a circuit board built into the housing, a charging interface, and a heating component. The heating component is electrically connected to the circuit board, and the heating component is the heating component described above in this embodiment. It is understood that the cigarette lighter structures disclosed in the prior art include, but are not limited to, the aforementioned housing, circuit board, and charging interface. Those skilled in the art can select the specific components and connection methods based on the prior art.

[0034] The beneficial effects of this utility model are:

[0035] The heating assembly provided by this utility model includes a heating element and a heat insulation element. The heating element has an extension portion that extends continuously from one of the electrodes and bends back and forth before extending to the other electrode. The extension portion forms a bend at the bend, and electrically isolated heating portions are formed along the extension direction after the bend. The heating portions are connected end-to-end, and the bend is fixedly connected to the heat insulation element. Through this design, the electrically isolated heating portions, because both ends are fixedly connected to the heat insulation element via bends, have better connection stability and strength, and are less prone to deformation. This overcomes the shortcomings of existing spiral structures, which are prone to deformation during long-term use, potentially leading to short circuits between the spiral heating wires and low product durability.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A heating assembly comprising a heating body and a heat insulating body, the heating body being fixed in the heat insulating body, the heating body having two electrodes, the two electrodes being connected to a circuit board, respectively, characterized in that, The heating element has an extension that extends continuously from one of the electrodes and bends back and forth to the other electrode. The extension forms a bend at the bend and electrically isolated heating parts in the extension direction after the bend. The heating parts are connected end to end and the bend is fixedly connected to the heat insulation body.

2. The heating assembly of claim 1, wherein, The heating elements are arranged in parallel to each other.

3. The heating assembly of claim 1, wherein, The bent portion has an outwardly extending fixing portion, and the bent portion is embedded in the heat insulation body and fixedly connected to the heat insulation body through the fixing portion.

4. The heating assembly of claim 3, wherein, The fixing part is a T-shaped structure or a semi-T-shaped structure.

5. The heating assembly of claim 3, wherein, The heat insulation body is made of ceramic material, and the heating body is made of metal material. During the sintering process of the heat insulation body, the heating body is sintered and fixed together with the heat insulation body by embedding it into the heat insulation body forming mold.

6. The heating assembly of claim 3, wherein, The heat insulation body is cylindrical, and has hollow holes corresponding to the position of the heating element. The heat insulation body also has two electrode grooves corresponding to the two electrodes.

7. A cigarette lighter, comprising a housing, a circuit board built in the housing, a charging interface and a heating assembly, the heating assembly being electrically connected with the circuit board, characterized in that, The heating component is the heating component according to any one of claims 1-6.

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