Outer package heat-sealing soldering iron

CN224257116UActive Publication Date: 2026-05-19NINGGUO YUHUA ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGGUO YUHUA ELECTRIC CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

[0003]现有技术将烙铁头分割为3-4段以匹配芯体曲率,但段间采用螺栓刚性连接,无法补偿±0.1mm的芯体直径公差,且缺乏热膨胀缓冲机制,高温下段体挤压引发整体扭曲,一体式烙铁头的结构刚性、热形变不可控性及缺乏动态压力补偿机制,是大直径芯体烫封质量不达标的核心瓶颈

Benefits of technology

[0011](1)通过调节部件的设置,在实际使用过程中,每个烙铁头背部安装弹簧(弹性系数k=50-200N/m),允许单段径向浮动位移±2mm,模块化快换设计,支持更换不同曲率的烙铁头来适配芯体规格,使得烫封表面平整度提升至Ra≤1.6μm,芯体直径适应范围扩大至30-80mm,整体烫封合格率得到有效提升。

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Abstract

The utility model discloses an outer wrapping heat-sealing soldering iron, which belongs to the technical field of soldering irons and comprises a heater and a plurality of soldering bits arranged on the heater, the soldering bits are distributed at equal intervals, and adjusting parts are arranged between the soldering bits and the heater. The adjusting component comprises two guide rods fixedly arranged on the faces, facing the heater, of the soldering bits and guide pipes fixed to the heater and matched with the guide rods, the two ends of the springs are fixedly connected with the soldering bits and the heater respectively, the guide rods are distributed on the two sides of the springs, the springs (the elastic coefficient k is 50-200 N / m) are installed on the back of each soldering bit, and the springs are connected with the heater. The single-section radial floating displacement is allowed to be + / -2mm, the modular quick-change design supports replacement of soldering bits with different curvatures to adapt to the specification of the core body, so that the flatness Ra of the heat-sealing surface is improved to be smaller than or equal to 1.6 microns, the application range of the diameter of the core body is expanded to be 30-80mm, and the overall heat-sealing qualification rate is effectively improved.
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Description

Technical Field

[0001] This utility model belongs to the field of soldering iron technology, specifically relating to an externally heat-sealed soldering iron. Background Technology

[0002] Hot stamping is widely used for sealing the core (such as metal conductors or polymer composites) and the outer film (such as polypropylene or aluminum-plastic composite film). Traditional one-piece soldering iron tips are made from a single piece of metal (such as copper or copper alloy), and the core-outer film interface is hot-pressed and sealed by an external heat source.

[0003] Existing technology divides the soldering tip into 3-4 segments to match the curvature of the core. However, the segments are rigidly connected by bolts, which cannot compensate for the core diameter tolerance of ±0.1mm. Furthermore, it lacks a thermal expansion buffer mechanism. Under high temperature, the segment compression causes overall distortion. The structural rigidity of the integrated soldering tip, the uncontrollability of thermal deformation, and the lack of a dynamic pressure compensation mechanism are the core bottlenecks that prevent the quality of hot-sealing large-diameter cores from meeting standards. Utility Model Content

[0004] The purpose of this utility model is to provide an externally heat-sealed soldering iron to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: it includes a heater and a soldering iron tip mounted on the heater, wherein the soldering iron tip is divided into several parts, the soldering iron tips are evenly distributed between them, and an adjustment component is provided between each soldering iron tip and the heater;

[0005] The adjustment component includes two guide rods fixedly mounted on the side of the soldering iron tip facing the heater and a guide tube fixed to the heater and adapted to the guide rods. The ends of the guide rods slide into the guide tube. A spring is also provided between the soldering iron tip and the heater. The spring is located in the middle of the soldering iron tip. The two ends of the spring are fixedly connected to the soldering iron tip and the heater, respectively. The guide rods are distributed on both sides of the spring.

[0006] It should be noted in the solution that the soldering iron tip is composed of a heat insulation plate and a heating element between the soldering iron and the heat insulation plate. The soldering iron is located on the side of the soldering iron tip away from the heater, the heat insulation plate is located on the side of the soldering iron tip facing the heater, and the guide rod is electrically connected to the heater.

[0007] It should be noted in the solution that the two ends of the spring are fitted with a second fixing tube and a fixing tube, the second fixing tube is fixed to the soldering iron tip, and the fixing tube is fixed to the heater.

[0008] It should be noted in the solution that the heater is also equipped with a temperature detector, which is fixedly connected to the soldering iron tip.

[0009] Compared with the prior art, the present invention provides an externally heat-sealed soldering iron, which includes at least the following:

[0010] Beneficial effects:

[0011] (1) By adjusting the settings of the components, in actual use, each soldering tip is equipped with a spring (elastic coefficient k = 50-200 N / m) on the back, allowing a single-segment radial floating displacement of ±2 mm. The modular quick-change design supports the replacement of soldering tips with different curvatures to adapt to the core specifications, thereby improving the flatness of the hot-sealing surface to Ra≤1.6 μm, expanding the core diameter adaptation range to 30-80 mm, and effectively improving the overall hot-sealing qualification rate.

[0012] (2) By setting the soldering iron tip, each soldering iron tip integrates a heating element (such as a ceramic heating element) in actual use. The heating element is arranged in a symmetrical ring to avoid the temperature gradient caused by a single heat source. The heat insulation plate is a heat insulation material to ensure that heat is transferred to the soldering iron and avoid energy waste. This can improve the uniformity of the overall temperature of the soldering iron and increase the heating speed of the soldering iron. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the product of this utility model;

[0014] Figure 2 This is a front view structural diagram of the product of this utility model;

[0015] Figure 3 This is a front view cross-sectional structural diagram of the product of this utility model;

[0016] Figure 4 This is an enlarged structural diagram of section A of the product of this utility model.

[0017] In the diagram: 1. Soldering tip; 2. Guide rod; 3. Heater; 4. Guide tube; 5. Spring; 6. Fixing tube; 7. Temperature detector; 8. Second fixing tube; 101. Soldering iron; 102. Heat insulation plate; 103. Heating element. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4 A heat-sealed soldering iron includes a heater 3 and a soldering tip 1 mounted on the heater 3;

[0020] In the existing technology, the existing hot-sealing soldering iron is a one-piece design, and the hot-sealing of large diameter, high film and wide core is often uneven when it is rolled or hot-sealed.

[0021] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the soldering iron tip 1 is divided into several parts, which are equidistant from each other. Each soldering iron tip 1 and the heater 3 is provided with an adjustment component. The adjustment component includes two guide rods 2 fixedly set on the side of the soldering iron tip 1 facing the heater 3 and a guide tube 4 fixed on the heater 3 and adapted to the guide rods 2. The end of the guide rod 2 slides into the guide tube 4. A spring 5 is also provided between the soldering iron tip 1 and the heater 3. The spring 5 is located in the middle part of the soldering iron tip 1. The two ends of the spring 5 are fixedly connected to the soldering iron tip 1 and the heater 3 respectively. The guide rods 2 are distributed on both sides of the spring 5. The soldering iron tip 1 is an independent arc-shaped segment.

[0022] By adjusting the component settings, in actual use, each soldering tip 1 is equipped with a spring 5 (elastic coefficient k = 50-200 N / m) on its back, allowing a single-segment radial floating displacement of ±2 mm. The modular quick-change design supports the replacement of soldering tips 1 with different curvatures to adapt to the core specifications, thereby improving the flatness of the heat sealing surface to Ra≤1.6μm; the core diameter adaptation range is expanded to 30-80 mm, and the overall heat sealing qualification rate is effectively improved.

[0023] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the soldering iron tip 1 is composed of a soldering iron 101 and a heat insulation plate 102. A heating element 103 is provided between the soldering iron 101 and the heat insulation plate 102. The soldering iron 101 is located on the side of the soldering iron tip 1 away from the heater 3, and the heat insulation plate 102 is located on the side of the soldering iron tip 1 facing the heater 3. The guide rod 2 is electrically connected to the heater 3.

[0024] By setting the soldering iron tip 1, in actual use, each soldering iron tip 1 integrates a heating element 103 (such as a ceramic heating element) inside, which is arranged in a symmetrical ring to avoid temperature gradients caused by a single heat source. The heat insulation plate 102 is a heat insulation material to ensure that heat is transferred to the soldering iron 101, avoid energy waste, improve the overall temperature uniformity of the soldering iron 101, and increase the heating speed of the soldering iron 101.

[0025] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the two ends of the spring 5 are fitted with a second fixing tube 8 and a fixing tube 6. The second fixing tube 8 is fixed on the soldering iron tip 1, and the fixing tube 6 is fixed on the heater 3.

[0026] By setting the spring 5, the second fixing tubes 8 and 6 on both sides of the spring 5 are fixed to the soldering iron tip 1 and the heater 3 respectively during installation, which can effectively fix the spring 5 so that the spring 5 can play an adjustment role in actual use.

[0027] Furthermore, referring to Figure 1-4 As shown, it is worth noting that the heater 3 is also equipped with a temperature detector 7, which is fixedly connected to the soldering iron tip 1.

[0028] By setting the temperature detector 7, in actual use, the temperature detector 7 can monitor the temperature change of the soldering iron tip 1, achieving a monitoring effect, and enabling operators to promptly detect problems based on temperature changes.

[0029] The present invention provides an external hot-sealing soldering iron. Specific preferred embodiments have been used to illustrate the principles and implementation methods of the present invention. These embodiments are merely for the purpose of helping to understand the principles and core ideas of the present invention. It should be noted that, for those skilled in the art, the implementation schemes in the above embodiments can be further combined or replaced without departing from the design concept of the present invention, and several improvements and modifications can be made to the present invention. These improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An externally wrapped, sear-sealed soldering iron comprising a heater (3) and a soldering iron tip (1) mounted on the heater (3), characterized in that: The soldering iron tip (1) is divided into several parts, and the soldering iron tips (1) are distributed at equal intervals. An adjustment component is provided between the soldering iron tip (1) and the heater (3). The adjustment component includes two guide rods (2) fixedly mounted on the side of the soldering iron tip (1) facing the heater (3) and a guide tube (4) fixed on the heater (3) and adapted to the guide rods (2). The end of the guide rod (2) slides into the guide tube (4). A spring (5) is also provided between the soldering iron tip (1) and the heater (3). The spring (5) is located in the middle part of the soldering iron tip (1). The two ends of the spring (5) are fixedly connected to the soldering iron tip (1) and the heater (3) respectively. The guide rods (2) are distributed on both sides of the spring (5).

2. The overwrapped, hot-seal soldering iron of claim 1, wherein: The soldering tip (1) consists of a soldering iron (101) and a heat insulation plate (102), with a heating element (103) provided between the soldering iron (101) and the heat insulation plate (102). The soldering iron (101) is located on the side of the soldering tip (1) away from the heater (3), and the heat insulation plate (102) is located on the side of the soldering tip (1) facing the heater (3). The guide rod (2) is electrically connected to the heater (3).

3. The overwrapped, hot-seal soldering iron of claim 2, wherein: The spring (5) has a second fixing tube (8) and a fixing tube (6) sleeved at both ends. The second fixing tube (8) is fixed on the soldering iron tip (1), and the fixing tube (6) is fixed on the heater (3).

4. The overwrapped, hot tinned iron of claim 3, wherein: The heater (3) is also equipped with a temperature detector (7), which is fixedly connected to the soldering iron tip (1).