An assembled heating body for an electric heating mosquito-repellent incense device and an electric heating mosquito-repellent incense device

Abstract

The utility model discloses a kind of assembly type heating body and electric mosquito incense device for electric mosquito incense device, specifically related to electric mosquito incense device technical field, including metal heating ring, mounting bracket, PTC heating sheet, buckle assembly and two electrode sheets, mounting bracket has chamber, PTC heating sheet and two electrode sheets are installed in chamber, two electrode sheets are all with PTC heating sheet abut, one end of two electrode sheets away from PTC heating sheet is worn out chamber for with power cord electrical connection, mounting bracket is connected with metal heating ring buckle by buckle assembly, and PTC heating sheet can be with metal heating ring abut.The utility model is simple in structure, convenient to assemble, improve the temperature consistency and stability of heating body, reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of electric mosquito repellent technology, and in particular to an assembled heating element for an electric mosquito repellent and an electric mosquito repellent device. Background Technology

[0002] Traditional electric mosquito repellent heaters typically employ a ceramic potting process for their heating elements. The typical manufacturing process involves: first, welding two wires to the two poles of a PTC element for electrical connection; then, filling a specially made ceramic substrate with a suitable amount of thermally conductive or insulating adhesive to fix the element and facilitate heat conduction; next, carefully inserting the PTC element with the welded wires into the potted ceramic substrate, ensuring its centered position and good contact with the inner wall of the ceramic; then, placing this semi-finished product in an oven for heating and drying to allow the adhesive to fully cure, forming a stable whole between the PTC and the ceramic structure; finally, riveting or assembling the dried and shaped ceramic heating element with external structural components such as plastic bipods and aluminum tubes to create a complete heating element product.

[0003] However, traditional manufacturing processes are quite complex, involving multiple independent steps. Not only are there many production steps and a long process route, but each step also requires a certain level of precision and condition control. For electric mosquito repellents, the temperature consistency of the heating element is a core technical parameter determining its effectiveness and safety. Excessive temperature may cause the mosquito repellent liquid to evaporate excessively, producing an odor and even posing safety hazards; conversely, insufficient temperature will prevent the effective ingredients from evaporating, affecting the mosquito-repelling effect.

[0004] The temperature consistency of traditional heating elements depends on factors such as the temperature error of PTC, the formulation of adhesive, and the drying process. Controlling the temperature consistency of heating elements is extremely difficult. It usually requires subsequent temperature measurement and screening processes to select qualified products with temperatures falling within the target range from a large number of finished products. This not only increases production costs and time but also reduces production efficiency and product consistency, making it one of the main technical bottlenecks faced by traditional processes. Utility Model Content

[0005] The purpose of this invention is to provide an assembled heating element and an electric mosquito repellent device for use in electric mosquito repellent devices, so as to solve the problems existing in the prior art. The structure is simple, the assembly is convenient, the temperature consistency and stability of the heating element are improved, and the cost is reduced.

[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides an assembled heating element for an electric mosquito repellent device, including a metal heating coil, a mounting frame, a PTC heating element, a snap-fit ​​assembly, and two electrode plates. The mounting frame has a cavity, in which the PTC heating element and the two electrode plates are installed. The two electrode plates abut against the PTC heating element electrode plate. The ends of the two electrode plates away from the PTC heating element extend out of the cavity and are electrically connected to a power cord. The mounting frame is snapped to the metal heating coil via the snap-fit ​​assembly, and the PTC heating element can abut against the metal heating coil.

[0007] Preferably, it further includes an insulating pad disposed between the PTC heating element and the metal heating coil.

[0008] Preferably, the insulating pad is insulating paper.

[0009] Preferably, the PTC heating element includes a PTC body, a first electrode, and a second electrode. The first electrode and the second electrode are fixedly mounted on a first side of the PTC body, and the second side of the PTC body is used to abut against the metal heating coil. The first side and the second side are arranged opposite to each other.

[0010] Preferably, the electrode sheet is elastic.

[0011] Preferably, the snap-fit ​​assembly includes a snap-fit ​​hook and an assembly hole for engaging with the snap-fit ​​hook. The snap-fit ​​hook is fixedly mounted on the mounting bracket, and the metal heating ring is provided with the assembly hole. The snap-fit ​​hook engages with the assembly hole, thereby forming a snap-fit ​​connection between the metal heating ring and the mounting bracket.

[0012] This utility model also provides an electric mosquito repellent device, including the assembled heating element for the electric mosquito repellent device.

[0013] The present invention achieves the following technical advantages over the prior art: This utility model provides an assembled heating element and electric mosquito repellent for electric mosquito repellents, including a metal heating ring, a mounting frame, a PTC heating element, a snap-fit ​​assembly, and two electrode plates. The manufacturing process is simplified, requiring only the PTC heating element and two electrode plates to be installed into the mounting frame, then snapped together with the metal heating ring and connected to the electrode plate wires. The entire process can be automatically assembled in one go by automated equipment, reducing control points in the manufacturing process, lowering manufacturing costs, and further simplifying the production operation process. At the same time, the metal heating ring has good thermal conductivity and fast heat transfer, making it easier to control the temperature consistency of the heating element, and effectively improving the stability and usability of use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the assembled heating element used in an electric mosquito repellent device; Figure 2 This is a schematic diagram showing the connection between the assembled heating element and the power cord in an electric mosquito repellent device. Figure 3 An exploded view of an assembled heating element used in electric mosquito repellent devices; Figure 4 This is a schematic diagram of the structure of a PTC heating element.

[0016] In the diagram: 1-Metal heating ring; 2-Mounting bracket; 3-PTC heating element; 4-Electrode plate; 5-Snap hook; 6-Assembly hole; 7-Power cord; 8-Insulating paper; 9-PTC body; 10-First electrode; 11-Second electrode. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The purpose of this invention is to provide an assembled heating element and an electric mosquito repellent device for use in electric mosquito repellent devices, so as to solve the problems existing in the prior art. The structure is simple, the assembly is convenient, the temperature consistency and stability of the heating element are improved, and the cost is reduced.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example 1 This embodiment provides an assembled heating element for an electric mosquito repellent device, such as... Figures 1-3As shown, the assembly includes a metal heating coil 1, a mounting bracket 2, a PTC heating element 3, a snap-fit ​​assembly, and two electrode plates 4. The mounting bracket 2 has a chamber in which the PTC heating element 3 and the two electrode plates 4 are installed. The two electrode plates 4 abut against the PTC heating element 3, with one end of each electrode plate 4 extending out of the chamber for subsequent electrical connection to the power cord 7. The mounting bracket 2 is snapped into the metal heating coil 1 via the snap-fit ​​assembly, allowing the PTC heating element 3 to abut against the metal heating coil 1. The manufacturing process of the assembled heating element for electric mosquito repellent is simple. It only requires sequentially inserting the two electrode plates 4 and the PTC heating element 3 into the chamber of the mounting bracket 2, then quickly snapping the entire assembly into the metal heating coil 1 using the snap-fit ​​assembly, and finally connecting the two electrode plates 4 to the wires. The entire assembly process can be automated to achieve efficient and automatic one-time assembly. The metal heating coil 1 has excellent thermal conductivity, which not only transfers heat quickly but also has high thermal conductivity. It is more precise in controlling temperature consistency and can significantly improve thermal conductivity. In terms of production advantages, due to the simplified manufacturing process and fewer control points, the temperature consistency and operational stability of the heating element are effectively improved. Compared with the heating element of traditional electric mosquito coils, there is no need to use high-energy-consuming equipment such as automatic PTC wire welding machines and ovens, which can reduce the corresponding manufacturing costs, simplify production operations, and significantly improve production efficiency and product reliability.

[0021] In a further preferred embodiment of this invention, the assembled heating element for the electric mosquito repellent also includes an insulating pad, which is disposed between the PTC heating element 3 and the metal heating ring 1. The insulating pad provides electrical insulation between the PTC heating element 3 and the metal heating ring 1, avoiding the risk of leakage that may occur due to direct contact between the two and ensuring the safety of the heating element.

[0022] In a further preferred embodiment of this invention, the insulating pad is insulating paper 8. The insulating paper 8 is relatively thin and light, which can ensure close contact between the PTC heating element 3 and the metal heating ring 1. The insulating paper 8 also has good heat resistance, which can adapt to the temperature environment when the heating element is working, and does not affect the heat transfer from the PTC heating element 3 to the metal heating ring 1. Under the premise of ensuring safety, the original thermal conductivity and temperature control performance of the heating element are maintained.

[0023] In the implementation of this embodiment, it is further preferred that, as follows: Figure 4As shown, the PTC heating element 3 includes a PTC body 9, a first electrode 10, and a second electrode 11. The first electrode 10 and the second electrode 11 are fixedly mounted on a first side of the PTC body 9, and the second side of the PTC body 9 is used to abut against the metal heating ring 1. The first side and the second side are arranged opposite to each other. Since the first electrode 10 and the second electrode 11 are integrated on the first side of the PTC body 9, the second side of the PTC body 9 can form a complete and flat heat transfer surface, which can be tightly attached to the insulating paper 8 and the metal heating ring 1, effectively avoiding the problem of gaps between the PTC heating element 3 and the metal heating ring 1 caused by the protrusion of the electrodes on both sides. This ensures that the heat generated by the PTC body 9 is efficiently and losslessly conducted to the metal heating ring 1, thereby quickly bringing the heating element to the temperature required for the operation of the electric mosquito repellent, while also ensuring the stability of heat transfer and avoiding local temperature fluctuations caused by gaps.

[0024] In a further preferred embodiment of this invention, the electrode sheet 4 is elastic. Due to its elastic properties, the two elastic electrode sheets 4 can continuously form a stable pressing force on the PTC heating element 3, ensuring that the PTC heating element 3 and the metal heating ring 1 always maintain a firm contact. This effectively avoids loosening of contact caused by assembly gaps, slight deformation of components, or long-term wear. At the same time, it ensures a stable electrical connection between the electrode sheet 4 and the PTC heating element 3, ensuring the reliability and stability of the overall working performance of the heating element.

[0025] In a further preferred embodiment of this invention, the snap-fit ​​assembly includes a snap-fit ​​hook 5 and an assembly hole 6 for engaging with the snap-fit ​​hook 5. The snap-fit ​​hook 5 is fixedly mounted on the mounting bracket 2, and the metal heating ring 1 is provided with the assembly hole 6. The snap-fit ​​hook 5 engages with the assembly hole 6, thereby forming a snap-fit ​​connection between the metal heating ring 1 and the mounting bracket 2. The snap-fit ​​assembly simplifies the assembly process between the mounting bracket 2 and the metal heating ring 1, eliminating the need for additional fastening tools, meeting the requirements for automated one-time assembly, and ensuring the stability of the connection after connection, preventing loosening during subsequent use.

[0026] Example 2 This embodiment provides an electric mosquito repellent device, including the assembled heating element for an electric mosquito repellent device as described in Embodiment 1.

[0027] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An assembled heating element for an electric mosquito repellent device, characterized in that: The device includes a metal heating coil, a mounting bracket, a PTC heating element, a snap-fit ​​assembly, and two electrode plates. The mounting bracket has a cavity in which the PTC heating element and the two electrode plates are installed. The two electrode plates abut against the PTC heating element electrode plate. The ends of the two electrode plates away from the PTC heating element extend out of the cavity and are electrically connected to a power cord. The mounting bracket is snapped to the metal heating coil via the snap-fit ​​assembly, and the PTC heating element can abut against the metal heating coil.

2. The assembled heating element for an electric mosquito repellent device according to claim 1, characterized in that: It also includes an insulating pad disposed between the PTC heating element and the metal heating coil.

3. The assembled heating element for an electric mosquito repellent device according to claim 2, characterized in that: The insulating pad is insulating paper.

4. The assembled heating element for an electric mosquito repellent device according to claim 1, characterized in that: The PTC heating element includes a PTC body, a first electrode, and a second electrode. The first electrode and the second electrode are fixedly installed on a first side of the PTC body. The second side of the PTC body is used to abut against the metal heating coil. The first side and the second side are arranged opposite to each other.

5. The assembled heating element for an electric mosquito repellent device according to claim 1, characterized in that: The electrode sheet is elastic.

6. The assembled heating element for an electric mosquito repellent device according to claim 1, characterized in that: The buckle assembly includes a buckle hook and an assembly hole for engaging with the buckle hook. The buckle hook is fixedly mounted on the mounting bracket. The metal heating ring is provided with the assembly hole. The buckle hook engages with the assembly hole, so that the metal heating ring and the mounting bracket form a buckle connection.

7. An electric mosquito repellent device, characterized in that: Includes the assembled heating element for an electric mosquito repellent as described in any one of claims 1-6.

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