Fuse with prompting function
By introducing temperature-sensitive and fluorescence-sensitive components and a detachable connection structure into the fuse, the problems of insufficient visual indication and low maintenance efficiency of the fuse are solved, enabling rapid identification and convenient replacement, reducing resource waste and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SINOBILE ENERGY TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-12
Smart Images

Figure CN224355215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fuses, and specifically to a fuse with a prompting function. Background Technology
[0002] A fuse is an electrical device that breaks the circuit by melting its fusible element when the current exceeds a specified value. Fuses are current protection devices that utilize the principle that when the current exceeds a specified value for a certain period, the heat generated by the fuse itself melts the fusible element, thus breaking the circuit. Fuses are widely used in high and low voltage power distribution systems, control systems, and electrical equipment as short-circuit and overcurrent protectors, and are one of the most commonly used protective devices.
[0003] A fuse consists of a fusible element and a base. The fusible element is made of a metal wire or sheet electrode with a low melting point. It is used in the protected circuit. When an overload or short circuit occurs in the circuit or equipment within it, the fusible element melts instantly due to heat, cutting off the circuit and protecting the circuit or equipment. Existing fuses have mounting holes or grooves on both ends of the mounting plate on the base. The fuse base is selected based on the installation environment, but a single mounting plate can only be used in different installation environments, and the mounting plate cannot be adjusted, making it inflexible and uncommon. To address these issues, publication number CN201721685050.3 discloses a novel fuse, including a fusible element with a mounting base on both sides. A mounting plate is mounted on each mounting base. Screws pass through the mounting plate and mounting base, fixing them to the fusible element. The shape of the mounting plate is not fixed; it can be L-shaped, I-shaped, etc. The shape of the auxiliary plate is also not fixed; it can be flat, cylindrical, etc. This design makes the fuse more flexible and versatile.
[0004] However, the aforementioned fuses still have the following problems: Most existing fuses use a non-visible, enclosed structure, requiring external instruments or disassembly after power failure to check the fuse's condition, resulting in low maintenance efficiency and high maintenance costs. Especially in complex electrical systems, fault location is difficult, and it is even harder to quickly identify the fuse's location and status at night or in dim lighting. Furthermore, most existing fuses use an integrated encapsulated structure, requiring replacement of the entire fuse after the fusible element fails, leading to resource waste. While some existing fuses have indicator functions, these typically only provide mechanical indication of the fusible element's melting, lacking sufficient temperature response sensitivity to alert to abnormal temperatures and lacking nighttime visibility, making it difficult to meet the needs of efficient operation and maintenance. Therefore, there is an urgent need for a fuse structure that provides real-time status indication, is easy to maintain, and has high reliability. Utility Model Content
[0005] This utility model addresses the shortcomings of current technology by providing a fuse with a prompting function, aiming to solve the technical problems of poor visual prompting, lack of nighttime prompting function, and poor maintenance and repair efficiency of existing fuses.
[0006] The technical solution adopted by this utility model to achieve the above objectives is as follows:
[0007] A fuse with a prompting function includes a fuse body, which includes a tube and a fusible element. Both ends of the tube are provided with fixing seats, and a detachable positioning connection structure is provided between the fixing seats and the tube. The tube is provided with a prompting component, which includes a temperature-changing component and a fluorescent temperature-changing component.
[0008] As a further improvement, the tube body is provided with an array of annular grooves, the temperature-changing component and the fluorescence temperature-changing component are respectively disposed in the annular grooves, and the fluorescence temperature-changing component is disposed on the side of the temperature-changing component.
[0009] As a further improvement, both the surface of the thermochromic component and the surface of the fluorescent thermochromic component are provided with a transparent heat insulation layer; the transparent heat insulation layer is used to isolate the influence of external heat.
[0010] As a further improvement, the thickness of the transparent heat insulation layer is 0.1mm-2mm.
[0011] As a further improvement, each of the annular grooves is also provided with a through hole, which extends into the tube body; both the temperature-changing component and the fluorescence temperature-changing component are also provided with a contact part, which is respectively disposed in the through hole and contacts the tube body.
[0012] As a further improvement, heat dissipation fins are provided on the outer surfaces of both ends of the tube.
[0013] As a further improvement, the detachable positioning connection structure includes a positioning buckle structure and a positioning slot structure. The positioning buckle structure is respectively disposed at both ends of the tube body, and the positioning slot structure is respectively disposed on the fixed base.
[0014] As a further improvement, each of the positioning buckle structures includes a connecting plate, which is integrated with the tube body; the connecting plate is provided with multiple elastic hooks, which are respectively located at the four corners of the connecting plate; the connecting plate is also provided with two positioning posts.
[0015] The positioning slot structure includes multiple buckle holes and multiple positioning grooves. The multiple buckle holes are respectively located at the four corners of the fixed base, and the elastic buckles are respectively engaged with the buckle holes. The positioning grooves are located on the inner side of the fixed base, and the positioning grooves are respectively engaged with the positioning posts.
[0016] As a further improvement, each of the fixed seats is provided with an elastic clamp, and the melt is disposed between two elastic clamps and respectively in contact with the elastic clamps; each of the fixed seats is provided with a support leg, and each support leg is provided with a slot.
[0017] As a further improvement, the pipe body is an explosion-proof ceramic pipe.
[0018] Compared with the prior art, the above-mentioned technical solutions of the fuse with prompting function provided in the embodiments of this utility model have at least one of the following technical effects:
[0019] 1. This utility model uses a dual indicator component consisting of a temperature-changing adhesive component and a fluorescent color-changing adhesive component to convert the temperature change inside the fuse body into a visual signal. During the day, the color change of the temperature-changing adhesive component intuitively indicates the overload or fuse status, and at night, the fluorescent properties of the temperature-changing adhesive component enable rapid location positioning, significantly improving the identification efficiency of abnormal fuses and shortening maintenance time.
[0020] 2. By setting a transparent heat insulation layer to isolate the interference of external ambient heat on the temperature-changing adhesive component and the fluorescent color-changing adhesive component, the contact part inside the through hole directly contacts the inside of the tube body, which enhances the sensitivity and accuracy of internal temperature conduction and ensures the reliability of status indication;
[0021] 3. By setting a detachable positioning connection structure, the tube body and the fixed seat can be quickly connected or disassembled, improving assembly efficiency. Combined with the setting of elastic clips, it is easy to quickly connect the fusible elements, improving installation convenience. Moreover, the elastic clips can be used to fix fusible elements of different thicknesses, improving applicability and facilitating the replacement of internal fusible elements without replacing the entire fuse body, thus reducing maintenance costs. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.
[0023] Figure 1 This is a schematic diagram of the overall structure of the fuse with prompting function in this embodiment;
[0024] Figure 2 This is a top view schematic diagram of the fuse with prompting function in this embodiment;
[0025] Figure 3 for Figure 2 AA section view diagram;
[0026] Figure 4 This is an exploded view of the fuse with a prompting function in this embodiment. Detailed Implementation
[0027] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.
[0028] For examples, see the appendix. Figures 1-4 A fuse with a warning function includes a fuse body 1, which includes a tube 2 and a fusible element 3. The tube 2 is an explosion-proof ceramic tube. Both ends of the tube 2 are provided with fixing seats 4, and a detachable positioning connection structure 5 is provided between the fixing seats 4 and the tube 2. The tube 2 is provided with a warning component 6; the warning component 6 includes a temperature-changing color-changing component 60 and a fluorescent temperature-changing color-changing component 61.
[0029] The tube body 2 is provided with an array of annular grooves 20. The temperature-changing component 60 and the fluorescent temperature-changing component 61 are respectively disposed in the annular grooves 20, and the fluorescent temperature-changing component 61 is disposed on the side of the temperature-changing component 60. The temperature-changing component 60 is a temperature-changing adhesive, and the fluorescent temperature-changing component 61 is a fluorescent temperature-changing adhesive. The temperature-changing component 60 is used to provide a temperature-changing color indication function, and the fluorescent temperature-changing component 61 is used to provide a temperature-changing color indication function. This allows the temperature change of the fuse body 1 caused by abnormal problems to be visually and promptly fed back to maintenance personnel. This enables staff to quickly know that there is an abnormal fuse body 1 or that the fuse body 1 has burned out, improving maintenance efficiency and safety. In addition, the temperature-changing color indication function makes it easy for staff to quickly know the location of the fuse body 1, improving the search efficiency in dim environments and facilitating maintenance and replacement.
[0030] Both the surface of the temperature-changing component 60 and the surface of the fluorescent temperature-changing component 61 are provided with a transparent heat-insulating layer 7. The transparent heat-insulating layer 7 is used to isolate the influence of external heat on the monitoring of the temperature-changing component 60 and the fluorescent temperature-changing component 61, ensuring the stability of the monitoring. The thickness of the transparent heat-insulating layer 7 is 0.1mm-2mm. The transparent heat-insulating layer 7 is used to prevent the influence of external heat. Each of the annular grooves 20 is also provided with a through hole, which extends into the tube body 2. Both the temperature-changing component 60 and the fluorescent temperature-changing component 61 are also provided with a contact portion, which is respectively disposed in the through hole and contacts the inside of the tube body 2. The contact portion is used to increase the internal contact area, thereby improving the efficiency and effect of temperature monitoring.
[0031] The outer surfaces of both ends of the tube 2 are provided with heat dissipation fin structures 21. The heat dissipation fin structure 21 is composed of multiple heat dissipation grooves. The heat dissipation fin structure 21 is used to dissipate heat and prevent the influence of internal heat.
[0032] The detachable positioning connection structure 5 includes a positioning buckle structure 50 and a positioning slot structure 51. The positioning buckle structure 50 is respectively disposed at both ends of the tube body 2, and the positioning slot structure 51 is respectively disposed on the fixed base 4. Each positioning buckle structure 50 includes a connecting plate 500, which is integrally connected to the tube body 2. The connecting plate 500 is provided with multiple elastic hooks 501, which are respectively disposed at the four corners of the connecting plate 500. The connecting plate 500 is also provided with two positioning posts 502. The positioning slot structure 51 includes multiple buckle holes 510 and multiple positioning grooves 511. The multiple buckle holes 510 are respectively disposed at the four corners of the fixed base 4, and the elastic hooks 501 are respectively engaged with the buckle holes 510. The positioning grooves 511 are disposed on the inner side of the fixed base 4, and the positioning grooves 511 are respectively engaged with the positioning posts 502. The detachable positioning connection structure 5 is used to realize the quick combination connection or disassembly between the tube body 2 and the fixed seat 4, improve the assembly efficiency, and facilitate the replacement of the internal fuse 3 without replacing the entire fuse body 1, thus reducing maintenance costs.
[0033] Each of the fixing bases 4 is provided with an elastic clip 40. The molten material 3 is disposed between two elastic clips 40 and is in contact with the elastic clips 40 respectively. The elastic clips 40 facilitate the quick combination and connection between the molten materials 3, improving the convenience of installation. The elastic clips 40 can be used to fix molten materials 3 of different thicknesses, improving applicability. Each of the fixing bases 4 is provided with a support leg 41. Each support leg 41 is provided with a slot 410. The slot 410 is used for the insertion of screws and electrical connection after locking.
[0034] This invention employs a dual-indication component consisting of a temperature-changing adhesive assembly and a fluorescent color-changing adhesive assembly. This transforms internal temperature changes in the fuse body into visual signals. During the day, the color change of the temperature-changing adhesive assembly visually indicates overload or fuse failure status. At night, the fluorescent properties of the temperature-changing adhesive assembly enable rapid location identification, significantly improving the efficiency of identifying faulty fuses and shortening maintenance time. A transparent heat insulation layer isolates the temperature-changing and fluorescent color-changing adhesive assemblies from external heat interference. The contact portion inside the through-hole directly contacts the inside of the tube, enhancing the sensitivity and accuracy of internal temperature conduction and ensuring the reliability of status indication. A detachable positioning connection structure allows for quick assembly and disassembly between the tube body and the mounting base, improving assembly efficiency. The elastic clip facilitates quick assembly between fuse elements, improving installation convenience. Furthermore, the elastic clip can be used to fix fuse elements of different thicknesses, increasing applicability and facilitating the replacement of internal fuse elements without replacing the entire fuse body, reducing maintenance costs.
[0035] This utility model is not limited to the above-described embodiments. Other fuses with prompting functions obtained by using the same or similar structures or devices as the above-described embodiments of this utility model are all within the protection scope of this utility model.
Claims
1. A fuse with a notification function, characterized in that: The fuse with a prompting function includes a fuse body, which includes a tube and a fusible element. Both ends of the tube are provided with a fixing seat, and a detachable positioning connection structure is provided between the fixing seat and the tube. The tube is provided with a prompting component, which includes a temperature-changing component and a fluorescent temperature-changing component.
2. The fuse with a notification function according to claim 1, characterized in that: The tube body is provided with an array of annular grooves, and the temperature-changing component and the fluorescence temperature-changing component are respectively disposed in the annular grooves, with the fluorescence temperature-changing component disposed on the side of the temperature-changing component.
3. The fuse with a notification function according to claim 2, characterized in that: Both the surface of the thermochromic component and the surface of the fluorescent thermochromic component are provided with a transparent heat insulation layer; the transparent heat insulation layer is used to isolate the influence of external heat.
4. The fuse with a notification function according to claim 3, characterized in that: The thickness of the transparent heat insulation layer is 0.1mm-2mm.
5. The fuse with a notification function according to claim 4, characterized in that: Each of the annular grooves is further provided with a through hole, which extends into the tube body; both the temperature-changing component and the fluorescent temperature-changing component are further provided with a contact portion, which is respectively disposed in the through hole and contacts the tube body.
6. The fuse with a notification function according to claim 5, characterized in that: The outer surfaces at both ends of the tube are provided with heat dissipation fins.
7. The fuse with a notification function according to claim 6, characterized in that: The detachable positioning connection structure includes a positioning buckle structure and a positioning slot structure. The positioning buckle structure is respectively disposed at both ends of the tube body, and the positioning slot structure is respectively disposed on the fixed base.
8. The fuse with a notification function according to claim 7, characterized in that: Each positioning buckle structure includes a connecting plate, which is integrally connected to the tube body; the connecting plate is provided with multiple elastic hooks, which are respectively located at the four corners of the connecting plate; the connecting plate is also provided with two positioning posts. The positioning slot structure includes multiple buckle holes and multiple positioning grooves. The multiple buckle holes are respectively located at the four corners of the fixed base, and the elastic buckles are respectively engaged with the buckle holes. The positioning grooves are located on the inner side of the fixed base, and the positioning grooves are respectively engaged with the positioning posts.
9. The fuse with a notification function according to claim 8, characterized in that: Each of the fixed seats is provided with an elastic clamp, and the melt is disposed between two elastic clamps and respectively in contact with the elastic clamps; each of the fixed seats is provided with a support leg, and each support leg is provided with a slot.
10. The fuse with a notification function according to claim 9, characterized in that: The tube body is an explosion-proof ceramic tube.