Hot work output structure and hot work tool

CN224718957UActive Publication Date: 2026-09-04NINGBO DELI TOOLS CO LTD
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Patent Information

Application Number
CN202521979037.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-09-04
Estimated Expiration
2035-09-15

AI Technical Summary

Technical Problem

但长时间使用后,枪嘴会积累较高温度,而使用者往往无法精准掌握枪嘴的实际温度,这不仅容易导致烫伤事故,还可能在收纳时因高温引发火灾隐患

Benefits of technology

[0021]本实用新型提供了一种热作业输出结构及热作业工具,当感温变色件夹设在输出主体与保护套之间时,感温变色件能够直接与输出主体接触,使得感温变色件能够通过变化其自身颜色的方式灵敏且直观地反映出输出主体的温度,降低了温度传递的延迟性,进而使用者仅通过观察感温变色件的温度就可直观且准确地了解到输出主体当前的温度,提高了该热作业输出结构使用的安全性以及热作业的工艺精度。此时,感温变色件还能够起到一定的隔热作用,有助于进一步提高该热作业输出结构使用的安全性。当感温变色件设置于通风孔处时,由于输出主体与保护套之间介质确定为空气,输出主体与保护套之间的间距确定,因此传导时的温度衰减量可控,以此可以精确估算出输出主体的温度,提高热作业的安全性和工艺精度;另一方面,感温变色件可以感应保护套的实时温度,提示用户勿在高温时触碰,或提示用户热作业工具已冷却完毕可进行收纳等操作。此外,输出主体的热量输入端的温度最高,无论感温变色件设置在通风孔处还是设置在输出主体与保护套之间,感温变色件均位于热量输入端处,从而有助于进一步提高感温变色件感温的灵敏度,保证使用的安全性。保护套上通风孔的设置一方面能让空气进入保护套与输入主体之间,有助于增强保护套自身以及输出主体散热的效率,提高保护套和输出主体的使用安全性和使用寿命;另一方面,无论感温变色件设置在通风孔处还是设置在输出主体与保护套之间,使用者均能够通过通风孔观察到感温变色件的颜色,提高了用户的使用感。

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Abstract

The utility model relates to the technical field of hot work relates to a kind of hot work output structure and hot work tool.The hot work output structure is used to output heat energy, including output main body, protective sleeve and temperature sensing color-changing part, protective sleeve is sleeved in output main body, and a plurality of ventilation holes are provided on protective sleeve;Temperature sensing color-changing part is arranged at ventilation hole and / or is clamped between output main body and protective sleeve, and temperature sensing color-changing part is located the heat input end of output main body.The hot work output structure can intuitively and accurately reflect temperature, improve the safety and process precision of hot work, and can also enhance the heat dissipation efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of thermal operation technology, and in particular relates to a thermal operation output structure and thermal operation tool. Background Technology

[0002] The core function of heat-working tools such as hot air guns and hot glue guns is to generate heat energy, which is used to heat air or glue strips to output hot air or molten glue from the nozzle. However, after prolonged use, the nozzle can accumulate high temperatures, and users often cannot accurately control the actual temperature of the nozzle. This can easily lead to burns and may also pose a fire hazard due to high temperatures when storing the gun.

[0003] Therefore, there is an urgent need for a thermal operation output structure and thermal operation tool to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a thermal operation output structure and thermal operation tool that can intuitively and accurately reflect the temperature, improve the safety and process accuracy of thermal operations, and enhance heat dissipation efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, a thermal operation output structure is provided for outputting thermal energy, the thermal operation output structure comprising:

[0007] Output body;

[0008] A protective cover is fitted over the output body, and the protective cover has multiple ventilation holes;

[0009] The thermochromic element is located at the ventilation hole and / or sandwiched between the output body and the protective sleeve, and the thermochromic element is located at the heat input end of the output body.

[0010] Optionally, the thermochromic element includes a sheet structure made of reversible thermochromic silicone fiber or a ceramic-based high-temperature coating mixed with thermochromic material.

[0011] Optionally, the thermal output structure also includes a transparent fluorescent layer, which is disposed on the side of the thermochromic element away from the output body.

[0012] Optionally, the thermal operation output structure also includes an alarm element installed on the output body, which is configured to emit a buzzer or vibration after the temperature of the output body exceeds a preset temperature.

[0013] Optionally, the thermal operation output structure also includes a temperature sensor disposed on the output body, the temperature sensor being electrically or communicatively connected to the alarm device, and configured to sense the temperature of the output body;

[0014] And / or, the thermal operation output structure also includes a color sensor disposed on the thermochromic element, the color sensor being electrically or communicatively connected to the alarm element, and configured to sense the color of the thermochromic element.

[0015] Optionally, the thermochromic element extends circumferentially along the output body.

[0016] On the other hand, a thermal operation tool is provided, including a support, a heating element, and the aforementioned thermal operation output structure. Both the heating element and the thermal operation output structure are disposed on the support, and the heating element is connected to the output body of the thermal operation output structure and is configured to generate heat energy.

[0017] Optionally, the temperature-sensitive color-changing element has multiple preset colors, and the multiple preset colors are different. A display element is provided on the bracket, and the display element is configured to display the temperature value corresponding to each preset color.

[0018] Optionally, the display includes multiple color display areas and temperature values ​​corresponding to each of the multiple color display areas, with each of the multiple color display areas corresponding to a multiple preset color.

[0019] Optionally, the hot work tool also includes a control unit electrically connected to the heating element and configured to control the opening and closing of the heating element.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention provides a thermal operation output structure and tool. When the thermochromic element is sandwiched between the output body and the protective sleeve, it can directly contact the output body, allowing it to sensitively and intuitively reflect the temperature of the output body by changing its color. This reduces the delay in temperature transmission, enabling users to directly and accurately understand the current temperature of the output body simply by observing the thermochromic element, thus improving the safety and precision of the thermal operation output structure. The thermochromic element also provides some insulation, further enhancing the safety of the thermal operation output structure. When the thermochromic element is positioned at the ventilation hole, the temperature attenuation during conduction is controllable because the medium between the output body and the protective sleeve is air, and the distance between them is fixed. This allows for accurate estimation of the output body temperature, improving the safety and precision of the thermal operation. Furthermore, the thermochromic element can sense the real-time temperature of the protective sleeve, prompting users not to touch it at high temperatures or indicating that the tool has cooled down and can be stored. Furthermore, the heat input end of the output unit has the highest temperature. Regardless of whether the thermochromic sensor is located at the ventilation hole or between the output unit and the protective sleeve, it is situated at the heat input end. This helps to further improve the temperature sensitivity of the thermochromic sensor and ensure safe use. The ventilation holes on the protective sleeve allow air to enter between the protective sleeve and the input unit, enhancing the heat dissipation efficiency of both the protective sleeve and the output unit, thus improving their safety and lifespan. On the other hand, regardless of whether the thermochromic sensor is located at the ventilation hole or between the output unit and the protective sleeve, the user can observe its color through the ventilation hole, improving the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the thermal operation output structure provided by this utility model;

[0023] Figure 2 An exploded view of the thermal operation output structure provided by this utility model;

[0024] Figure 3 A schematic diagram of the protective sleeve for the thermal operation output structure provided by this utility model;

[0025] Figure 4 A schematic diagram of the structure of the thermal working tool provided by this utility model.

[0026] in:

[0027] 100. Thermal output structure; 101. Output body; 102. Protective sleeve; 1021. Ventilation hole; 103. Temperature-sensitive color-changing component; 1031. Transparent fluorescent layer;

[0028] 200. Stand; 201. Display component; 202. Adjustment component; 203. Control component; 204. Grip component. Detailed Implementation

[0029] It should be understood that in the description of this utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] It should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figures 1 to 3 As shown, this embodiment provides a thermal operation output structure 100, which can intuitively and accurately reflect the temperature, improve the safety and process accuracy of thermal operations, and also enhance heat dissipation efficiency.

[0034] See Figure 1 and Figure 2 The heat output structure 100 is used to output heat energy and includes an output body 101, a protective sleeve 102, and a temperature-sensitive color-changing element 103. The protective sleeve 102 is fitted onto the output body 101 and has multiple ventilation holes 1021. The temperature-sensitive color-changing element 103 is disposed at the ventilation holes 1021 and / or sandwiched between the output body 101 and the protective sleeve 102, and is located at the heat input end of the output body 101. The heat input end is the end away from the hot air gun outlet or the glue gun outlet.

[0035] The thermal operation output structure 100 provided in this embodiment allows the thermochromic element 103 to directly contact the output body 101 when sandwiched between the output body 101 and the protective sleeve 102. This enables the thermochromic element 103 to sensitively and intuitively reflect the temperature of the output body 101 by changing its color, reducing the delay in temperature transmission. Consequently, users can directly and accurately understand the current temperature of the output body 101 simply by observing the temperature of the thermochromic element 103, improving the safety of the thermal operation output structure 100 and the precision of thermal operations. Furthermore, the thermochromic element 103 also provides some heat insulation, further enhancing the safety of the thermal operation output structure 100. When the thermochromic element 103 is positioned at the ventilation hole 1021, since the medium between the output body 101 and the protective sleeve 102 is determined to be air, and the distance between the output body 101 and the protective sleeve 102 is fixed, the temperature attenuation during conduction is controllable. This allows for accurate estimation of the temperature of the output body 101, improving the safety and process precision of hot operations. Furthermore, the thermochromic element 103 can sense the real-time temperature of the protective sleeve 102, prompting the user not to touch it at high temperatures, or indicating that the hot operation output structure 100 has cooled down and can be stored. In addition, the heat input end of the output body 101 has the highest temperature. Regardless of whether the thermochromic element 103 is positioned at the ventilation hole 1021 or between the output body 101 and the protective sleeve 102, it is located at the heat input end, further enhancing its temperature sensitivity and ensuring safe operation. The ventilation holes 1021 on the protective cover 102 allow air to enter between the protective cover 102 and the input unit, which helps to enhance the heat dissipation efficiency of the protective cover 102 and the output unit 101, thereby improving the safety and service life of the protective cover 102 and the output unit 101. On the other hand, regardless of whether the thermochromic element 103 is located at the ventilation hole 1021 or between the output unit 101 and the protective cover 102, the user can observe the color of the thermochromic element 103 through the ventilation hole 1021, which improves the user experience.

[0036] For example, the hot work output structure 100 is the nozzle of a hot air gun or a hot glue gun, and the output body 101 is the barrel of the nozzle, through which hot air or glue can flow out from the inner hole of the barrel.

[0037] See Figure 1 The protective sleeve 102 is fitted onto the output body 101 along the length of the output body 101, and the output body 101 is completely hidden inside the protective sleeve 102, so that the user will not have direct contact with the output body 101, further improving the safety of use.

[0038] Optionally, see Figure 2The thermochromic component 103 comprises a sheet-like structure made of reversible thermochromic silicone fiber or a ceramic-based high-temperature coating mixed with thermochromic material.

[0039] Reversible thermochromic silicone fibers, using a TiO2@AgI composite as the color-changing core, are prepared through high-temperature air-induced crosslinking technology. They exhibit high-temperature stability, significant color-changing performance, and potential for applications in various scenarios. Specifically, the reversible thermochromic silicone fibers can withstand temperatures above 400℃, with a thermal conductivity of 0.2054 W / (m·K), and can complete the white-to-yellow transformation within 21 seconds.

[0040] Ceramic-based high-temperature coatings mixed with thermochromic materials combine the high-temperature resistance, heat insulation, and corrosion resistance of ceramic materials with the temperature-sensitive color-changing function of thermochromic materials. They not only have high heat resistance but also can change color with temperature.

[0041] In this embodiment, the thermochromic element 103 is bonded to the wall of the ventilation hole 1021 or to the output body 101.

[0042] Optionally, see Figure 2 The thermal output structure 100 also includes a transparent fluorescent layer 1031, which is disposed on the side of the thermochromic element 103 facing away from the output body 101. This arrangement not only allows the thermochromic element 103 to emit bright and vivid fluorescence in dimly lit environments, significantly improving the visibility of its color and facilitating quick user identification, but also ensures that the emitted fluorescence is the true color of the thermochromic element 103, guaranteeing accurate user judgment.

[0043] For example, the transparent fluorescent layer 1031 is made of a mixture of quantum dots and UV-curable transparent ink. Quantum dots, as fluorescent materials, can absorb ultraviolet light and emit visible light of specific wavelengths (such as red, green, and blue). Full-color fluorescence is achieved by adjusting the size and composition of the quantum dots. The UV-curable transparent ink serves as a substrate, forming a transparent coating after curing, without interfering with the original color of the thermochromic element 103.

[0044] Optionally, the thermal operation output structure 100 also includes an alarm element disposed on the output body 101. The alarm element is configured to emit a buzzer or vibration after the temperature of the output body 101 exceeds a preset temperature, so as to remind the user and avoid accidents.

[0045] The preset temperature is the temperature that may cause burns to the user or damage to the item.

[0046] For example, the alarm may employ a buzzer or a vibrator.

[0047] In this embodiment, the thermal operation output structure 100 further includes a temperature sensor disposed on the output body 101. The temperature sensor is electrically or communicatively connected to an alarm device and is configured to sense the temperature of the output body 101. When the temperature sensor detects that the temperature of the output body 101 has reached a preset temperature, the temperature sensor can transmit the current information to the alarm device, and the alarm device can emit a buzzer or vibration.

[0048] For example, the temperature sensing element uses a temperature sensor.

[0049] In other embodiments, the thermal operation output structure 100 further includes a color sensor disposed on the thermochromic element 103. The color sensor is electrically or communicatively connected to an alarm element and is configured to sense the color of the thermochromic element 103. After the temperature of the output body 101 reaches a preset temperature, the color of the thermochromic element 103 changes to a specific color, such as yellow. When the color sensor detects that the color of the thermochromic element 103 is the aforementioned specific color, the color sensor can transmit the current information to the alarm element, and the alarm element can emit a buzzer or vibration.

[0050] For example, the color sensing device uses a color sensor, such as the AS7341 visible light sensor, which can sense multiple colors such as white and yellow.

[0051] Optionally, see Figure 2 The thermochromic element 103 extends circumferentially along the output body 101 so that the user can see the color of the thermochromic element 103 from various angles along the circumference of the output body 101, reducing the occurrence of blind spots and helping to improve the safety of use.

[0052] Specifically, see Figure 2 and Figure 3 The ventilation hole 1021 located at the heat input end extends circumferentially along the protective sleeve 102, which is a strip-shaped hole. The thermochromic element 103 is a long strip-shaped sheet structure, which can block the ventilation hole 1021 located at the heat input end.

[0053] Example 2

[0054] like Figure 4 As shown, this embodiment provides a thermal operation tool, including a support 200, a heating element, and a thermal operation output structure 100 of Embodiment 1. The heating element and the thermal operation output structure 100 are both disposed on the support 200. The heating element is connected to the output body 101 of the thermal operation output structure 100 and is configured to generate heat energy.

[0055] For example, the hot work tool is a hot air gun or a hot glue gun, and the heating element is an electric heating wire that can convert electric heat into heat energy.

[0056] Optionally, see Figure 4 The temperature-sensitive color-changing component 103 has multiple preset colors, and the multiple preset colors are different. A display component 201 is provided on the bracket 200. The display component 201 is configured to display the temperature value corresponding to each preset color, so that the user can quickly determine the current temperature of the output body 101 by the color of the temperature-sensitive color-changing component 103.

[0057] In this embodiment, the display device 201 includes multiple color display areas and temperature values ​​corresponding to each of the multiple color display areas, and the multiple color display areas correspond to multiple preset colors.

[0058] For example, the thermochromic element 103 is made of reversible thermochromic silicone fiber, which is white between 0°C and 135.4°C and bright yellow above 135.4°C. Furthermore, there are two preset colors and two color display areas: one white and the other bright yellow. The temperature value corresponding to the white color display area is less than 135.4°C, and the temperature value corresponding to the bright yellow color display area is greater than 135.4°C.

[0059] Optionally, see Figure 4 An adjustment component 202 is provided on the bracket 200. The adjustment component 202 is electrically connected to the heating element and is configured to adjust the heating power of the heating element in order to regulate the temperature of the output object.

[0060] In this embodiment, the display 201 is provided with a movable pointer, and the adjustment 202 includes a rotatable adjustment wheel connected to the pointer. Rotating the adjustment wheel can drive the pointer to move on the display 201 to point to different temperature values, which helps to improve the convenience of use for users.

[0061] Optionally, see Figure 4 The hot work tool also includes a control unit 203, which is electrically connected to the heating element and is configured to control the opening and closing of the heating element.

[0062] In this embodiment, the control unit 203 is electrically connected to the alarm. When the alarm sounds, the control unit 203 can control the heating element to shut down, thereby automatically stopping the hot work tool at high temperatures and further improving the safety of use.

[0063] Optionally, see Figure 4 The support 200 is equipped with a grip 204, which the user operates the entire hot work tool by gripping the grip 204.

[0064] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model fall within the protection and disclosure scope of the present utility model.

Claims

1. A thermal operation output structure, characterized in that, The thermal output structure (100), used for outputting thermal energy, includes: Output main body (101); A protective sleeve (102) is fitted onto the output body (101), and the protective sleeve (102) is provided with a plurality of ventilation holes (1021); A thermochromic element (103) is disposed at the ventilation hole (1021) and / or sandwiched between the output body (101) and the protective sleeve (102), and the thermochromic element (103) is located at the heat input end of the output body (101).

2. The thermal operation output structure according to claim 1, characterized in that, The thermochromic element (103) comprises a sheet-like structure made of reversible thermochromic silicone fiber or a ceramic-based high-temperature coating mixed with thermochromic material.

3. The thermal operation output structure according to claim 1, characterized in that, The thermal output structure (100) further includes a transparent fluorescent layer (1031), which is disposed on the side of the thermochromic element (103) away from the output body (101).

4. The thermal operation output structure according to claim 1, characterized in that, The thermal operation output structure (100) also includes an alarm element disposed on the output body (101), the alarm element being configured to emit a buzzer or vibration after the temperature of the output body (101) exceeds a preset temperature.

5. The thermal operation output structure according to claim 4, characterized in that, The thermal operation output structure (100) further includes a temperature sensor disposed on the output body (101), the temperature sensor being electrically or communicatively connected to the alarm device and configured to sense the temperature of the output body (101); And / or, the thermal operation output structure (100) further includes a color sensor disposed on the thermochromic element (103), the color sensor being electrically or communicatively connected to the alarm element and configured to sense the color of the thermochromic element (103).

6. The thermal operation output structure according to any one of claims 1-5, characterized in that, The thermochromic element (103) extends circumferentially along the output body (101).

7. A hot work tool, characterized in that, The device includes a support (200), a heating element, and a thermal output structure (100) as described in any one of claims 1-6. The heating element and the thermal output structure (100) are both disposed on the support (200). The heating element is connected to the output body (101) of the thermal output structure (100) and is configured to generate thermal energy.

8. The thermal working tool according to claim 7, characterized in that, The temperature-sensitive color-changing component (103) has multiple preset colors, and the multiple preset colors are different. The bracket (200) is provided with a display component (201), and the display component (201) is configured to display the temperature value corresponding to each preset color.

9. The thermal working tool according to claim 8, characterized in that, The display device (201) includes multiple color display areas and temperature values ​​corresponding to each of the multiple color display areas, and the multiple color display areas correspond to multiple preset colors.

10. The thermal working tool according to claim 7, characterized in that, The thermal working tool also includes a control unit (203) electrically connected to the heating element and configured to control the opening and closing of the heating element.