A fuse link testing device

By using the limiting groove and adjusting clamping mechanism of the fuse blowout testing device, the problem of fuses loosening and falling off during testing is solved, achieving stable connection and real-time monitoring, ensuring the accuracy of test results and operational efficiency.

CN224417020UActive Publication Date: 2026-06-26SHANGHAI FULLNESS ELECTRICAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI FULLNESS ELECTRICAL CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing fuse blowing tests, fuses are prone to loosening or falling off, causing test interruptions and affecting continuity and stability.

Method used

A fuse blowout testing device was designed, which adopts a limiting groove, an adjustable clamping mechanism, and an elastic buckle to ensure a stable connection between the fuse and the terminal. The arc-shaped clamping block and the spring telescopic rod provide a stable clamping force to prevent poor contact. Combined with display lights and sensors, the device monitors the test status in real time to ensure the accuracy and flexibility of the test results.

Benefits of technology

It achieves a stable connection between the fuse and the terminal, reduces the increase in resistance and abnormal heating caused by poor contact, ensures the accurate application of current and voltage, improves the continuity and stability of testing, and enhances operational efficiency and safety through real-time monitoring and display functions.

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Abstract

The utility model discloses a fuse link test device relates to fuse link test technical field, including device main part, the top of device main part is established and is limited to the limit groove, the inside of limit groove is provided with the circuit board, the surface of circuit board is provided with the wiring port, one side of wiring port is provided with the adjusting clamping mechanism, adjusting clamping mechanism includes the fixed base, the fixed base fixedly connected at the surface of circuit board, the both sides of the top of fixed base are fixedly connected with the limit block respectively, one side of limit block is fixedly connected with the connecting rod, the outside of connecting rod is sleeved with the sliding block, one end of sliding block is fixedly connected with spring telescopic link, when fuse is inserted into the wiring port, arc clamping block drives the sliding block and slides along the connecting rod, and spring telescopic link produces the elasticity, makes arc clamping block tightly clamps the fuse, and the steady clamping force can ensure that fuse and wiring port contact well between, thereby guaranteeing the accuracy and flexibility of test result.
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Description

Technical Field

[0001] This utility model relates to the field of fuse failure testing technology, specifically a fuse failure testing device. Background Technology

[0002] Fuse breaking test is an important means of evaluating the performance and quality of fuses. It aims to simulate the current, voltage and other conditions that fuses may encounter in actual circuits, observe and record the fuse breaking characteristics under specific conditions, and determine whether they meet the design requirements and relevant standards.

[0003] In existing fuse testing, the fuse to be tested is usually directly plugged into the positive and negative terminals of the circuit board. Since fuses are of different sizes, they are prone to loosening or falling off during testing, which can lead to test interruption. The fuse needs to be reinstalled and the test needs to be restarted, affecting the continuity and stability of the test.

[0004] Therefore, those skilled in the art have provided a fuse blowout testing device to solve the problems mentioned in the background art. Summary of the Invention

[0005] The purpose of this invention is to provide a fuse blowout testing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fuse blowing test device includes a main body. A limiting groove is formed at the top of the main body. A transparent cover is hinged to one side of the limiting groove. A circuit board is disposed inside the limiting groove. A wiring port is provided on the surface of the circuit board. An adjusting clamping mechanism is provided on one side of the wiring port. The adjusting clamping mechanism includes a fixed base, which is fixedly connected to the surface of the circuit board, with the wiring port passing through the center of the fixed base. Limit blocks are fixedly connected to both sides of the top of the fixed base. A connecting rod is fixedly connected to one side of each limiting block. A slider is sleeved on the outside of the connecting rod. A spring telescopic rod is fixedly connected to one end of the slider. The other end is fixedly connected to an arc-shaped clamping block. The inside of the arc-shaped clamping block is provided with anti-slip texture, and the anti-slip texture is wavy. The clamping mechanism is fixed to the circuit board by a fixing seat. When the fuse is inserted into the terminal, it will squeeze the arc-shaped clamping blocks on both sides. The arc-shaped clamping blocks drive the slider to slide along the connecting rod. The spring telescopic rod is compressed to generate elastic force, so that the arc-shaped clamping blocks tightly clamp the fuse. The stable clamping force can ensure good contact between the fuse and the terminal, reduce problems such as increased resistance and abnormal heating caused by poor contact, and thus ensure that the current and voltage can be accurately and stably applied to the fuse during the test, ensuring the accuracy and flexibility of the test results.

[0008] As a further embodiment of this utility model: a connection port is provided on one side of the main body of the device, and an indicator light is provided on the surface of the connection port. A fixing slot is provided inside the limiting groove, and an elastic buckle is provided inside the fixing slot. A connecting wire is provided inside the elastic buckle. The fixing slot and elastic buckle provided inside the limiting groove provide stable fixation and protection for the connecting wire. One end of the connecting wire is fixed in the fixing slot by the elastic buckle, and the other end can be connected to the connection port during use. This not only ensures the sealing of the connection line, but also prevents the connecting wire from loosening or falling off due to shaking, pulling, etc. during use, ensuring the stable connection of the internal circuit of the device. At the same time, the working status and test results of the device can be monitored in real time through the indicator light during the connection process.

[0009] As a further improvement of this utility model: multiple adjustment buttons are provided at the bottom of the connection port, a display screen is provided on one side of each adjustment button, a control switch is provided at the bottom of the display screen, and an operation indicator is provided on one side of the control switch. During the test, the operator can set and adjust the test parameters through the adjustment buttons and display and record them on the display screen. After the adjustment is completed, the device can be started through the control switch. The set process indicator can provide clear operation guidance for the user and improve the efficiency of operation.

[0010] As a further improvement of this utility model: a support bracket is fixedly connected inside the main body of the device, and a cooling fan is snapped into the support bracket. Multiple heat dissipation holes are respectively opened on both sides of the main body of the device. Dustproof nets are connected to the outside of the heat dissipation holes by bolt threads. The support bracket provides a stable installation position for the cooling fan, ensuring that the cooling fan will not shake or shift during operation. During the fuse blowing test, the circuit board and electronic components inside the device will generate heat due to the current passing through them. The cooling fan exhausts the hot air inside the device through forced convection and introduces cold air from the outside, forming a good air circulation, effectively reducing the temperature inside the device and preventing the performance of electronic components from deteriorating, aging accelerated, or even being damaged due to excessive temperature.

[0011] As a further improvement of this utility model: a lock hole is provided on one side of the transparent cover, and a sensor is provided on one side of the wiring port. The sensor is electrically connected to the display screen. During the fuse blowing test, the transparent cover can be locked through the lock hole to prevent unauthorized personnel from opening the transparent cover at will during the test, thereby improving the safety of use. At the same time, the sensor provided on the wiring port side can monitor various key parameters such as current, voltage, and temperature in real time during the fuse blowing test.

[0012] As a further improvement of this utility model: handles are fixedly connected to both sides of the main body of the device, and insulating sleeves are fitted over the handles. Multiple support legs are fixedly connected to the bottom of the main body of the device. Handles are fixedly connected to both sides of the main body of the device, providing convenient handholds for operators, facilitating the movement and handling of the device, and the support legs provide fixed support for the entire device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The adjustable clamping mechanism is fixed to the circuit board via a mounting base. When the fuse is inserted into the terminal, it squeezes the arc-shaped clamping blocks on both sides. The arc-shaped clamping blocks drive the slider to slide along the connecting rod. The spring telescopic rod is compressed to generate elastic force, which makes the arc-shaped clamping blocks tightly clamp the fuse. The stable clamping force can ensure good contact between the fuse and the terminal, reducing problems such as increased resistance and abnormal heating caused by poor contact. This ensures that the current and voltage can be accurately and stably applied to the fuse during the test, ensuring the accuracy and flexibility of the test results.

[0015] 2. The fixed slot and elastic buckle inside the limiting groove provide stable fixation and protection for the connecting wire. One end of the connecting wire is fixed in the fixed slot by the elastic buckle, and the other end can be connected to the connection port during use. This not only ensures the sealing of the connecting line, but also prevents the connecting wire from loosening or falling off due to shaking, pulling or other reasons during use, ensuring the stable connection of the internal circuit of the device. At the same time, the working status and test results of the device can be monitored in real time through the indicator light during the connection process. Attached Figure Description

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a fuse blowout testing device. Figure 1 .

[0017] Figure 2 For a fuse blowout testing device Figure 1 Enlarged 3D structural diagram at point A.

[0018] Figure 3 A schematic diagram of a three-dimensional structure in a fuse blowout testing device. Figure 2 .

[0019] Figure 4 This is a schematic diagram of the top structure of the main body of a fuse blowout testing device.

[0020] Figure 5 This is a partial three-dimensional magnified structural diagram of a fuse blowout testing device.

[0021] In the diagram: 1. Main body of the device; 2. Limiting groove; 3. Transparent cover; 4. Circuit board; 5. Wiring port; 6. Adjusting clamping mechanism; 7. Connection port; 8. Indicator light; 9. Fixing slot; 10. Elastic buckle; 11. Connecting wire; 12. Adjusting button; 13. Display screen; 14. Control switch; 15. Operation indicator; 16. Support base; 17. Cooling fan; 18. Heat dissipation hole; 19. Dustproof net; 20. Lock hole; 21. Sensor; 22. Handle; 23. Insulating sleeve; 24. Support leg; 601. Fixing base; 602. Limiting block; 603. Connecting rod; 604. Slider; 605. Spring telescopic rod; 606. Arc-shaped clamping block; 607. Anti-slip texture. Detailed Implementation

[0022] 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. Example

[0023] reference Figures 1-5This embodiment provides a fuse blowout testing device, including a device body 1. A limiting groove 2 is formed on the top of the device body 1. A transparent cover 3 is hinged to one side of the limiting groove 2. A circuit board 4 is disposed inside the limiting groove 2. A wiring port 5 is provided on the surface of the circuit board 4. An adjusting clamping mechanism 6 is provided on one side of the wiring port 5. The adjusting clamping mechanism 6 includes a fixed base 601, which is fixedly connected to the surface of the circuit board 4, and the wiring port 5 passes through the middle of the fixed base 601. Limiting blocks 602 are fixedly connected to both sides of the top of the fixed base 601. A connecting rod 603 is fixedly connected to one side of the limiting block 602. A slider 604 is sleeved on the outside of the connecting rod 603. A spring telescopic rod 605 is fixedly connected to one end of the slider 604. The other end of block 604 is fixedly connected to an arc-shaped clamping block 606. The arc-shaped clamping block 606 has anti-slip texture 607 inside, and the anti-slip texture 607 is wavy. A connection port 7 is provided on one side of the main body 1. A display light 8 is provided on the surface of the connection port 7. A fixing slot 9 is provided inside the limiting groove 2. An elastic buckle 10 is provided inside the fixing slot 9. A connecting wire 11 is provided inside the elastic buckle 10. Multiple adjustment buttons 12 are provided at the bottom of the connection port 7. A display screen 13 is provided on one side of the adjustment button 12. A control switch 14 is provided at the bottom of the display screen 13. An operation indicator 15 is provided on one side of the control switch 14. A support bracket 16 is fixedly connected inside the main body 1. A loose... When using the hot air fan 17, the user opens the transparent cover 3 and inserts one end of the fuse into the wiring port 5 on the circuit board 4. Since the wiring port 5 is penetrated through the middle of the mounting base 601, the fuse will pass through the mounting base 601 when inserted into the wiring port 5. After the fuse is inserted, the operator places the fuse between the two arc-shaped clamping blocks 606. At this time, the operator manually pushes the slider 604 to slide it on the connecting rod 603. As the slider 604 moves, the spring telescopic rod 605 gradually approaches the fuse. When the arc-shaped clamping block 606 contacts the fuse pin, the spring telescopic rod 605 is squeezed, and the internal spring is compressed. The elastic force of the spring makes the arc-shaped clamping block 606 fit tightly against the fuse pin, forming a stable clamping force. The arc-shaped clamping block 606 tightly clamps the fuse pin. The fuse ensures good contact between the fuse and the terminal 5, preventing inaccurate test results due to poor contact during testing. The wavy anti-slip texture 607 inside the arc-shaped clamping block 606 increases the friction between the fuse and the clamp, further improving clamping stability. Meanwhile, one end of the connecting wire 11 is fixed in the fixing slot 9 by the elastic clip 10, and the other end is fixedly inserted into the connection port 7, connecting the circuit board 4 to other circuits inside the device body 1 to form a complete test circuit. After the fuse is clamped and fixed, the operator sets the test value using the adjustment button 12 and presses the control switch 14. The device enters the test state, and the circuit board 4 controls the power module through the terminal 5, the elastic clip 10, and the connecting wire 11.The set current is applied to the fuse. During the test, the circuit board 4 monitors the current, voltage, and other parameters in the circuit in real time and transmits the data to the display screen 13 for display. At the same time, the display lamp 8 provides feedback on the device's operation through different light states. For example, the power indicator light illuminates to indicate that the device is powered on, and the test run indicator light illuminates to indicate that the test is in progress. The circuit board 4 detects sudden changes in current in real time, determines that the fuse has blown, immediately stops the power output, and records key data such as the time and current at the moment of fuse blown. At this time, the fuse blown completion indicator light in the display lamp 8 illuminates to prompt the operator that the test is over. The circuit board 4 processes and analyzes the recorded test data, generates a test report, and displays it to the operator through the display screen 13 for easy viewing and analysis. The operator can also export the test data through the USB interface on one side of the device body 1 for further analysis and archiving. During the test, the circuit board 4 and other electronic components generate heat. The cooling fan 17 inside the device body 1 starts running after being powered on, exhausting the hot air inside the device through the heat dissipation holes 18 on both sides of the device body 1. At the same time, external cold air enters the device through the heat dissipation holes 18, forming air convection and maintaining the internal temperature of the device within a reasonable range. , Example

[0024] Reference Figures 1-5This embodiment is based on the previous embodiment, but differs in that multiple heat dissipation holes 18 are provided on both sides of the main body 1. Dustproof mesh 19 is threadedly connected to the outside of the heat dissipation holes 18 via bolts. A lock hole 20 is provided on one side of the transparent cover 3, and a sensor 21 is provided on one side of the wiring port 5, with the sensor 21 electrically connected to the display screen 13. Handles 22 are fixedly connected to both sides of the main body 1, and insulating sleeves 23 are fitted over the handles 22. Multiple support legs 24 are fixedly connected to the bottom of the main body 1. The multiple heat dissipation holes 18 on both sides of the main body 1, in conjunction with the internal cooling fan 17, form a high-efficiency heat dissipation channel. This channel can be activated when the electronic components inside the device are working, allowing hot air inside to be exhausted through the heat dissipation holes 18, while cold air from outside flows in through other heat dissipation holes 18, creating an air-cooled cooling system. Air convection is provided, and the dustproof net 19, with its fine mesh structure, can block dust and debris from entering the device. At the same time, before conducting the fuse blow test, the operator closes the transparent cover 3 to ensure operational safety. Secondly, the sensor 21 on one side of the wiring port 5 can monitor the fuse signal in real time and transmit it to the circuit board 4 for preliminary processing, and then to the display screen 13. The display screen 13 displays these data in real time in an intuitive digital and graphical form, making it convenient for the operator to keep track of the test status at any time. The operator can carry or move the device using the handles 22 on both sides of the main body 1. The insulating sleeve 23 on the outside of the handles 22 can also effectively block the current to prevent the operator from being electrocuted and ensure personal safety. Finally, the main body 1 is provided with stable support by multiple support legs 24 at its bottom.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fuse blowout testing device, comprising a device body (1), characterized in that, The top of the main body (1) of the device has a limiting groove (2), and a transparent cover (3) is hinged to one side of the limiting groove (2). A circuit board (4) is installed inside the limiting groove (2). A wiring port (5) is provided on the surface of the circuit board (4). An adjusting clamping mechanism (6) is provided on one side of the wiring port (5). The adjusting clamping mechanism (6) includes a fixing seat (601). The fixing seat (601) is fixedly connected to the surface of the circuit board (4), and the wiring port (5) passes through the middle of the fixing seat (601). Limiting blocks (602) are fixedly connected to the top two sides of the fixed base (601). A connecting rod (603) is fixedly connected to one side of the limiting block (602). A slider (604) is sleeved on the outside of the connecting rod (603). A spring telescopic rod (605) is fixedly connected to one end of the slider (604). An arc-shaped clamping block (606) is fixedly connected to the other end of the slider (604). The arc-shaped clamping block (606) has anti-slip texture (607) inside, and the anti-slip texture (607) is wavy.

2. The fuse blowout testing device according to claim 1, characterized in that, A connection port (7) is provided on one side of the main body (1) of the device. A display lamp (8) is provided on the surface of the connection port (7). A fixing slot (9) is provided inside the limiting groove (2). An elastic buckle (10) is provided inside the fixing slot (9). A connecting wire (11) is provided inside the elastic buckle (10).

3. The fuse blowout testing device according to claim 2, characterized in that, The bottom of the connection port (7) is provided with multiple adjustment buttons (12), and a display screen (13) is provided on one side of the adjustment buttons (12). A control switch (14) is provided at the bottom of the display screen (13), and an operation indicator (15) is provided on one side of the control switch (14).

4. The fuse blowing test device according to claim 1, characterized in that, The device body (1) is fixedly connected to a support bracket (16), and a cooling fan (17) is snapped into the support bracket (16). Multiple heat dissipation holes (18) are opened on both sides of the device body (1), and a dustproof net (19) is connected to the outside of the heat dissipation holes (18) by bolt threads.

5. The fuse blowout testing device according to claim 1, characterized in that, A lock hole (20) is provided on one side of the transparent cover (3), and a sensor (21) is provided on one side of the wiring port (5), and the sensor (21) is electrically connected to the display screen (13).

6. The fuse blowout testing device according to claim 1, characterized in that, Handles (22) are fixedly connected to both sides of the main body (1) of the device. An insulating sleeve (23) is fitted on the outside of the handle (22). Multiple support legs (24) are fixedly connected to the bottom of the main body (1).