Anti-static wire thermal knife

By designing dual heating elements in the hot-working tool and installing them in parallel, and using insulating components and support parts, the problem of static electricity accumulation is solved, achieving an anti-static effect, improving operational safety and product yield, and making it suitable for military and aerospace processing in complex environments.

CN223680658UActive Publication Date: 2025-12-16SHANGHAI YAQING ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423225231.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-12-16
Estimated Expiration
2034-12-26

AI Technical Summary

Technical Problem

Existing hot-working knives cannot effectively prevent static electricity accumulation during use, which may lead to static electricity hazards and material damage, especially in the military and aerospace fields, affecting product performance and reliability.

Method used

The design incorporates dual heating elements installed in parallel, with insulation components used to isolate circuit conduction. Supports are added in confined spaces to prevent short circuits, ensuring proper grounding and preventing static electricity buildup.

Benefits of technology

It improves operational safety and product yield, and is suitable for processing high-precision military and aerospace products that are sensitive to static electricity, ensuring equipment stability and thermal efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-static wire thermal knife which comprises a knife head, a shell, heating devices and conduction devices and further comprises a first built-in groove and a second built-in groove, the heating devices are arranged in the first built-in groove in a double-way parallel mode, and the conduction devices are arranged in the second built-in groove in a double-way parallel mode. The insulating assembly isolates circuit conduction between the heating device and the tool bit. By designing the double-path heating device, a loop is formed by the double-path heating device and does not need to be formed by means of a shell any more, and the risk of static accumulation possibly caused by the fact that the shell serves as a loop path in traditional design is effectively avoided; loop grounding can be achieved through double-circuit parallel connection, the anti-static effect is achieved, safety and reliability in the operation process are guaranteed, and the device is particularly suitable for machining of high-precision military industry and aerospace products sensitive to static electricity.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric heating tool, especially relates to a kind of anti-static wire hot tool. BACKGROUND

[0002] Hot tool is a kind of electric heating tool that electrician commonly uses, mainly used for stripping the insulation layer of wire efficiently and accurately, especially for handling thicker wire, and the hot tool must be used for cutting function. The blade is rapidly heated using the principle of electric heating, which can easily cut and remove materials that can only be handled at high temperatures, such as PVC, nylon and other insulating materials, to ensure that the internal metal wire is not damaged and the stripping effect is achieved.

[0003] During actual use, the working scene usually has very limited operating space, so the space occupied by the built-in heating device in the hot tool, such as electric heating wire, is also very limited. Therefore, the existing hot tool with single electric heating wire saves space and ensures that there is no short circuit. One end of the heating device is connected to the conducting device (commonly known as enameled wire), and the other end passes through the tool head and provides heat, and then connects with the shell to form a loop. Since the shell cannot be grounded, it does not have an anti-static effect. However, in the military field, the materials used often have special electrical properties. For example, some composite materials and high-performance polymers may generate static electricity during processing. The accumulation of static electricity not only may cause electric shock hazards, but also may damage sensitive electronic components, especially precision electronic components, which are very harmful. In addition, aerospace products have very high requirements for materials, and any minor damage may affect the performance and reliability of the product. Static discharge may cause small cracks, deformation or contamination on the surface of the material, affecting the overall performance of the product. Therefore, when using the hot tool for cutting or stripping operations, anti-static measures are crucial to ensure the safety of the operation process and the integrity of the product. SUMMARY

[0004] According to the embodiments of the utility model, to solve the above-mentioned deficiencies in the prior art, an anti-static wire hot tool is provided, which includes a tool head and a shell. The tool head and the shell are respectively provided with a heating device capable of generating heat and a conducting device connected to an external power source. The heating device is connected to the conducting device. The utility model is characterized in that it further comprises:

[0005] A first built-in slot is provided in the tool head, and the heating device is built-in in the first built-in slot in double parallel paths.

[0006] A second built-in slot is provided in the shell, and the conducting device is built-in in the second built-in slot in double parallel paths.

[0007] An insulation assembly is provided to insulate the circuit conduction between the heating device and the tool head.

[0008] Preferably, a third built-in groove is arranged at the joint of the first built-in groove and the second built-in groove, and the width of the third built-in groove is greater than the width of the first and second built-in grooves.

[0009] Preferably, the insulating assembly comprises an insulating paint, which is in a flowable state and fixes the heat generating device after air drying.

[0010] Preferably, the insulating paint is a vulcanized silicone rubber, a silicone resin glue or an epoxy resin glue.

[0011] Preferably, the insulating assembly further comprises a plurality of support portions arranged on the inner wall of the first built-in groove, and the support portions are insulators.

[0012] Preferably, the support portions are in the form of flakes.

[0013] Preferably, the support portions are mica flakes.

[0014] Preferably, an insulating handle is arranged outside the shell, and one end of the handle is provided with a mounting buckle which is clamped on the shell.

[0015] Preferably, anti-slip lines are arranged on the outer side of the insulating handle.

[0016] Preferably, the heat generating device is an electric heating wire.

[0017] The anti-static wire heat tool according to the embodiment of the present application has the following advantages. The double-circuit heat generating device itself constitutes a loop, and no longer needs to rely on the shell to constitute a loop, thereby effectively avoiding the risk of static electricity accumulation caused by the shell as a loop path in the traditional design. Meanwhile, the double-circuit parallel connection can realize loop grounding and achieve the effect of preventing static electricity, thereby ensuring the safety and reliability in the operation process, and is especially suitable for high-precision military and aerospace product processing which is sensitive to static electricity. At the same time, in view of the problem that the heat generating device and the shell may be in contact in a narrow space, especially the position space of the arc, the tip and the edge of the tool bit is even narrower, the present application increases a support portion in the first built-in groove to realize the effect of insulating the heat generating device and the shell, thereby avoiding short circuit and significantly improving the yield. The support portion not only effectively isolates the heat generating device and the shell to prevent short circuit or heat conduction efficiency caused by direct contact, but also greatly improves the yield of the product. This design enables the heat tool to work stably in a more compact and complex environment, while maintaining good thermal efficiency and operation flexibility.

[0018] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the subject technology. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the antistatic wire thermal knife according to an embodiment of the present invention. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0021] First, combine Figure 1 The antistatic wire hot work tool according to an embodiment of the present invention is widely used in scenarios such as processing wires and stripping insulation layers. In this embodiment, the cutting of a relatively thick wire is used as an example for explanation.

[0022] like Figure 1 As shown, the antistatic wire thermal knife of this utility model includes a blade head 1, a housing 2, a heating device 3 capable of generating heat, and a conductive device 4 connected thereto and externally powered. In the prior art, the conductive device 4 is usually made of enameled wire. The antistatic wire thermal knife also includes: a first internal groove 51, a second internal groove 52, and an insulating component.

[0023] Specifically, such as Figure 1 As shown, the first built-in slot 51 and the second built-in slot 52 provide space for the installation and fixation of the heating element 3 and the conductive element 4, respectively, ensuring that the heating element 3 can be stably installed inside the cutter head 1 and the conductive element 4 can be stably installed inside the housing 2. The heating element 3 is installed in the first built-in slot 51 in parallel, and the conductive element 4 is installed in the second built-in slot 52 in parallel, in parallel. This technology changes the single-path of the prior art to the dual-path of the present technology, realizing loop grounding. It can promptly conduct static charge on the equipment to the ground, avoiding the accumulation of static electricity on the equipment. This can significantly improve the anti-static performance of the thermal knife, enhance equipment stability, ensure personnel safety, and improve product applicability. The insulating component isolates the circuit conduction between the heating element 3 and the cutter head 1, as well as between the conductive component and the housing 2. The insulating component is used to isolate the circuit conduction between the heating element 3 and the cutter head 1, and between the conductive component and the housing 2, preventing current from directly passing through the cutter head 1 or the housing 2 and causing short circuits or electric shocks.

[0024] Preferably, such as Figure 1 As shown, a third built-in groove 53 is provided at the connection between the first built-in groove 51 and the second built-in groove 52. The width of the third built-in groove 53 is greater than the width of the first and second built-in grooves 52. The design of the third built-in groove 53 provides more space at the built-in solder joint at the connection between the first built-in groove 51 and the second built-in groove 52, preventing the solder joint from contacting the housing 2 and causing a short circuit. At the same time, it facilitates installation and fixation, and improves the overall assembly efficiency and stability.

[0025] Preferably, the insulation assembly comprises an insulation paint, which is in a flowable state and solidifies after air drying to fix the heating device 3. The insulation paint can be uniformly applied to the heating device 3 and the conducting device 4 to form a solid insulation layer, effectively insulating the circuit and improving the insulation performance of the device. After air drying, the insulation paint can fix the heating device 3, making it more stably installed in the first built-in groove 51 and reducing the risk of loosening or damage caused by vibration or impact.

[0026] Preferably, the insulation paint is a vulcanized silicone rubber, a silicone resin glue, or an epoxy resin glue. The above insulation glues can all be in a flowable state, allowing the heating device 3 to be suspended in the first built-in groove 51 and insulated from the tool bit 1 after air drying, while also having good high-temperature resistance and chemical corrosion resistance, making them suitable for high-temperature working environments of hot-working tools.

[0027] Preferably, as shown in Figure 1 the insulation assembly further comprises a plurality of support portions 6, which are arranged in the first built-in groove 51 and are insulators. At the tool bit 1, especially at positions with edges, tips, and curves, the width of the first built-in groove 51 becomes smaller and the depth becomes shallower, and the heating device 3 is prone to touching the inner wall of the first built-in groove 51, causing defective products. The support portions 6, as insulators, can effectively support and fix the heating device 3, preventing it from contacting the tool bit 1 and effectively improving the yield.

[0028] Preferably, the support portions 6 are in the form of thin sheets. On the one hand, the thin sheet-shaped support portions 6 can closely fit the bottom and sidewalls of the first built-in groove 51, especially when the width of the first built-in groove 51 becomes smaller and the depth becomes shallower, the thin sheet-shaped support portions 6 can more effectively provide support, ensuring that the heating device 3 does not touch the groove wall due to space limitations. On the other hand, the thin sheet-shaped support portions 6 have a small thickness, which can reduce the thermal resistance during heat transfer from the heating device 3 to the tool bit 1, improving the heat conduction efficiency.

[0029] Preferably, the support portions 6 are mica sheets. Mica sheets are low-cost and can effectively insulate the circuit, while hot-working tools operate at high temperatures, and mica sheets have good high-temperature stability, maintaining their physical and chemical properties in high-temperature environments, ensuring that the heating device 3 does not malfunction due to deformation or melting of the support portions 6 during long-term high-temperature operation.

[0030] Preferably, as shown in Figure 1 the shell 2 is provided with an insulating handle 7, one end of which is provided with a mounting buckle 71 that is clamped to the shell 2. The design of the insulating handle 7 allows the operator to hold the hot-working tool more safely, avoiding the risk of electric shock caused by direct contact with live parts, while also having an anti-scald effect.

[0031] Preferably, asFigure 1 As shown, the outer side of the insulating handle 7 is provided with anti-skid lines 72. The anti-skid lines 72 improve the grip of the handle and prevent accidents caused by slippery hands

[0032] Preferably, the heating device 3 is an electric heating wire. As the heating device 3, the electric heating wire has the advantages of fast heating speed and high heating efficiency, can meet various heating requirements, and at the same time, has a strip shape to meet the technical characteristics of the narrow space of the hot knife, and can further change the resistance and power by adjusting the thickness of the electric heating wire, thereby improving the adaptability of the hot knife.

[0033] In use, the heating device 3 (such as an electric heating wire) inside the hot knife generates heat after being powered on, and the heat is transmitted to the tool bit 1 by heat conduction, so that the tool bit 1 reaches a high enough temperature to cut or process the target material. At the same time, the insulating assembly ensures the safe isolation of the circuit to prevent short circuit or electric shock caused by direct current through the tool bit 1 or the shell 2.

[0034] The above, with reference to Figure 1 The anti-static wire hot knife according to the embodiment of the utility model is described, the double-way heating device 3 itself constitutes a loop, and the loop is no longer formed by the shell 2, thereby effectively avoiding the risk of static electricity accumulation caused by the shell 2 as a loop path in the traditional design; the loop is grounded to achieve the effect of preventing static electricity, thereby ensuring the safety and reliability during operation, and the utility model is especially suitable for processing high-precision military and aerospace products sensitive to static electricity. At the same time, in view of the problem that the heating device 3 and the shell 2 may be in contact in a narrow space, especially the position space with an arc in the tool bit 1 is more narrow, the utility model increases the support part 6 in the first built-in groove 51 to significantly improve the yield, so as to realize the effect of insulation between the heating device 3 and the shell 2. The support part 6 not only effectively isolates the heating device 3 and the shell 2 to prevent short circuit or heat conduction efficiency caused by direct contact, but also greatly improves the yield of the product. This design enables the hot knife to work stably in a more compact and complex environment, while maintaining good thermal efficiency and operation flexibility.

[0035] In the description of the utility model, it should be pointed out that, unless otherwise stated, the meaning of "multiple" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0036] It should be noted that in the present specification, the terms "comprising", "containing" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the elements defined by the phrase "comprising" do not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.

[0037] Although the content of the present application has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present application. After reading the above content, various modifications and alternatives of the present application will be apparent to those skilled in the art. Therefore, the protection scope of the present application should be defined by the appended claims.

Claims

1. A thermal cutting tool for antistatic wires, comprising a cutting head and a housing, wherein the cutting head and the housing are respectively provided with a heating element capable of generating heat and a conductive element connected to an external power source, the heating element being connected to the conductive element, characterized in that, Also comprising: a first built-in slot, which is arranged in the cutter head, and the heating device is arranged in the first built-in slot in double parallel; a second built-in slot, which is arranged in the shell, and the conducting device is arranged in the second built-in slot in double parallel; an insulation assembly, which insulates the circuit conduction between the heating device and the cutter head.

2. The anti-static wire hot knife of claim 1, wherein, The connection between the first built-in slot and the second built-in slot is provided with a third built-in slot, and the width of the third built-in slot is greater than the width of the first and second built-in slots.

3. The anti-static wire hot knife of claim 1, wherein, The insulation assembly comprises insulation paint, which is in a flowing state and fixes the heating device after air drying.

4. The anti-static wire hot knife of claim 3, wherein, The insulation paint is vulcanized silicone rubber, silicone resin glue or epoxy resin glue.

5. The anti-static wire hot knife of claim 3, wherein, The insulation assembly further comprises a plurality of support portions, which are arranged on the inner wall of the first built-in slot, and the support portions are insulators.

6. The anti-static wire hot knife of claim 5, wherein, The support portions are in the form of flakes.

7. The anti-static wire hot knife of claim 6, wherein, The support portions are mica flakes.

8. The anti-static wire hot knife of claim 1, wherein, The shell is externally provided with an insulating handle, one end of the handle is provided with a mounting buckle, and the mounting buckle is clamped on the shell.

9. The anti-static wire hot knife of claim 8, wherein, The outer side of the insulating handle is provided with anti-slip lines.

10. The anti-static wire hot knife of claim 1, wherein, The heating device is an electric heating wire.