Fuse temperature rise test fixing device

Abstract

The application relates to the technical field of fuse temperature rise detection, in particular to a fuse temperature rise test fixing device which comprises a test workbench, a test base and a rotating pipe, the outer wall of the rotating pipe is fixedly connected with a rotating disc, the outer wall of the rotating disc is rotatably installed with a rotating ring, the rotating ring is fixedly connected with a gas conveying pipeline, when the second contact ball removes the contact with the single first contact block, the reset spring resets all the mechanisms to move, the up-down high-frequency reciprocating movement of the rotating contact block makes the outer wall of the rotating contact block continuously reciprocate and contact the third contact block, the third contact block makes the arc-shaped wind deflector cover reciprocate at a small amplitude, the wind blown out of the rotating pipe can reciprocate and expand and shrink at a small amplitude, and the cleaning effect of sweeping off impurities on the surface of the fuse body is further enhanced; before starting the detection, the intelligent photoelectric sensor is started by power supply, and the intelligent photoelectric sensor can detect whether the position of the fuse body is fixed in place.

Description

Technical Field

[0001] This invention relates to the field of fuse temperature rise detection technology, specifically a fuse temperature rise test fixture. Background Technology

[0002] In the field of power systems and electrical equipment, fuses are key short-circuit and overload protection components. Temperature rise testing is one of the core test items for fuse factory inspection and performance verification. This test involves applying a specified rated current or overload current to the fuse and detecting the temperature change of the fuse terminals and housing to determine whether it meets the relevant standard requirements. This avoids safety hazards such as insulation aging, poor contact, or even failure caused by excessive fuse temperature rise. During the fuse temperature rise test, a special fixing device is needed to reliably position the fuse. Intelligent sensors are used to determine whether it is firmly fixed to achieve a stable electrical connection with the test power supply. This ensures that the fuse does not shake and the contact resistance remains stable during the test, thereby guaranteeing the accuracy of the temperature rise measurement results.

[0003] Currently available fuse temperature rise test fixtures struggle to achieve precise and reliable clamping and positioning, easily leading to loose contact between the fuse terminals and conductive connectors. This interferes with the fuse's own temperature rise measurement results, affecting test accuracy. Furthermore, dust, oxide layers, metal debris, and other impurities easily accumulate on the fuse terminal surfaces and conductive connectors. Existing fixtures lack dedicated cleaning mechanisms, allowing these impurities to further increase contact resistance, causing abnormal heating at the contact points during testing. This not only affects the accuracy of temperature rise measurement but may also lead to arcing due to poor contact, posing a safety hazard. Manual cleaning not only increases the workload for operators and is inefficient but also results in inconsistent cleaning outcomes, failing to guarantee test consistency. Summary of the Invention

[0004] The purpose of this invention is to provide a fixing device for fuse temperature rise testing, so as to solve the problems of the fixing devices proposed in the background art, which are difficult to achieve accurate and reliable clamping and positioning, and are prone to poor contact between the fuse terminals and conductive connectors, and the accumulation of dust, oxide layer, metal debris and other impurities on the surface of the fuse terminals and the surface of the conductive connectors.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fuse temperature rise test fixing device, comprising a test workbench, a test base, and a rotating tube. A rotating disk is fixedly connected to the outer wall of the rotating tube, and a rotating ring is rotatably mounted on the outer wall of the rotating disk. A gas supply pipe is fixedly connected to the rotating ring. A second fixing plate is fixedly connected to the inner wall of the rotating tube. A first rotating rod is rotatably mounted on the inner wall of the second fixing plate. A plurality of annularly distributed vortex fan blades are fixedly connected to the outer wall of the first rotating rod. A square rod with a square cross-section is slidably connected to the inner wall of the first rotating rod. A swing plate is fixedly connected to one end of the square rod. An abutment rod is fixedly connected to the outer wall of the swing plate. A second abutment ball is rotatably mounted at the end of the abutment rod. A second rotating rod is fixedly connected to the outer wall of the swing plate. A rotating abutment block with a frustum shape is fixedly connected to one end of the second rotating rod.

[0006] Preferably, a return spring is sleeved on the outer wall of the square rod, one end of the return spring is fixedly connected to the end of the first rotating rod, and the other end of the return spring is fixedly connected to the outer wall of the swing plate.

[0007] Preferably, the inner wall of the rotating tube is fixedly connected with a plurality of annularly distributed second abutment blocks and first abutment blocks. The outer wall of the second abutment block is provided with an arc-shaped abutment surface. The first abutment block is a hemispherical block. The movement trajectory of the second abutment ball abuts against the first abutment block and the second abutment block.

[0008] Preferably, a plurality of annularly distributed cleaning bristles are fixedly connected to the end of the rotating tube, and a plurality of annularly distributed fixing frames are fixedly connected to the end of the rotating tube. A third rotating rod is rotatably connected to the inner wall of the fixing frame. A rotating block is sleeved on the outer wall of the third rotating rod. An arc-shaped air guide is fixedly connected to the outer wall of the rotating block. A torsion spring is sleeved on the outer wall of the third rotating rod. One end of the torsion spring is fixedly connected to the outer wall of the rotating block, and the other end of the torsion spring is fixedly connected to the inner wall of the fixing frame.

[0009] Preferably, a third abutment block is fixedly connected to the outer wall of the arc-shaped air guide shroud, and the moving trajectory of the rotating abutment block abuts against the third abutment block.

[0010] Preferably, the outer wall of the test workbench is fixedly connected to a test table, the test base is fixedly connected to the surface of the test table, the outer wall of the test base is fixedly connected to a first fixing plate, the outer wall of the first fixing plate is rotatably mounted with a first abutting ball, the outer wall of the rotating tube is provided with a spiral guide groove, and the first abutting ball is slidably mounted on the inner wall of the spiral guide groove.

[0011] Preferably, the outer wall of the test base is provided with a first sliding groove, the inner wall of the first sliding groove is slidably connected to a first sliding seat, and the outer wall of the first sliding seat is threadedly connected to a first fixing bolt and a second fixing bolt.

[0012] Preferably, the outer wall of the test base is provided with a second sliding groove, the second sliding groove is connected to the first sliding groove, and the first fixing bolt passes through the second sliding groove.

[0013] Preferably, a second sliding seat is fixedly connected to the outer wall of the first sliding seat, the rotating tube is rotatably mounted on the outer wall of the second sliding seat, and an intelligent photoelectric sensor is fixedly mounted on the outer wall of the second sliding seat.

[0014] Preferably, a fixing plate is fixedly connected to the outer wall of the second sliding seat, a connecting rod is fixedly connected to the outer wall of the fixing plate, a first conductive copper busbar is fixedly installed on the outer wall of the connecting rod, a fuse body is fixedly connected to the outer wall of the first conductive copper busbar, a second conductive copper busbar is fixedly connected to one end of the fuse body, and an insulator is fixedly connected to one end of the second conductive copper busbar.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, when the second abutting ball releases its contact with a single first abutting block, the reset spring resets and moves all mechanisms back to their original positions. Therefore, the arrangement of multiple first abutting blocks causes the swing plate to move back and forth with the second rotating rod and the rotating abutting block in a small amplitude. The high-frequency back and forth movement of the rotating abutting block causes its outer wall to repeatedly abut against the third abutting block, causing the third abutting block to swing back and forth with the arc-shaped air guide cover in a small amplitude. The air blown out from the rotating tube will then spread and shrink in a small amplitude, further enhancing the cleaning effect on the surface of the fuse body to remove impurities.

[0016] 2. In this invention, when the second contact ball slides and contacts the second contact block, the second contact ball first rises to the highest point of the surface of the second contact block through the arc-shaped contact surface of the outer wall of the second contact block. At this time, the entire swing plate, along with the second rotating rod and the rotating contact block, rises a certain distance. Since there is a flat area on the surface of the second contact block, the rotating contact block will remain in contact with the third contact block for a period of time before releasing the contact. This allows multiple third contact blocks to be in an open state, and the gas blown out from the rotating tube is diffused, expanding the cleaning range.

[0017] 3. In this invention, while cleaning is being carried out, the gas pipeline is always connected to high-pressure gas. The high-pressure gas is delivered into the rotating disc, and a portion of the high-pressure gas is sprayed directly from the rotating pipe onto the surface of the fuse body, blowing away the impurities swept off the surface of the fuse body by the cleaning brush, further cleaning the fuse body and its surrounding connecting parts. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the test base and its surrounding structure of the present invention; Figure 3 This is a schematic diagram of the test base and its surrounding structure from another perspective. Figure 4 This is a schematic diagram of the cross-sectional structure of the test base and its surrounding area according to the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating tube and its surrounding area according to the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a schematic diagram of the rotating tube and its surrounding cross-section from another perspective of the present invention; Figure 8 This is a schematic diagram of the first rotating rod and its surrounding structure according to the present invention.

[0019] In the attached diagram, the components represented by each number are as follows: 1. Test workbench; 2. Test table surface; 3. Test base; 4. First sliding groove; 5. First sliding seat; 6. Second sliding seat; 7. Second sliding groove; 8. First fixing bolt; 9. Second fixing bolt; 10. Intelligent photoelectric sensor; 11. Fixing plate; 12. Connecting rod; 13. First conductive copper busbar; 14. Fuse body; 15. Second conductive copper busbar; 16. Insulator; 17. Cleaning brush bristles; 18. Rotating tube; 19. Rotating disk; 20. Rotating ring; 21. Gas pipeline; 22. Spiral guide groove ; 23. First fixed plate; 24. First abutting ball; 25. Second fixed plate; 26. First rotating rod; 27. Vortex fan blade; 28. Square rod; 29. ​​Return spring; 30. Swing plate; 31. Abutting rod; 32. Second abutting ball; 33. First abutting block; 34. Second abutting block; 35. Arc-shaped abutting surface; 36. Second rotating rod; 37. Rotating abutting block; 38. Fixed frame; 39. Third rotating rod; 40. Torsion spring; 41. Rotating block; 42. Arc-shaped air guide cover; 43. Third abutting block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides a technical solution: such as Figure 1 - Figure 8 The device shown is a fuse temperature rise test fixture, including a test workbench 1, a test base 3, and a rotating tube 18. A rotating disk 19 is fixedly connected to the outer wall of the rotating tube 18. A rotating ring 20 is rotatably mounted on the outer wall of the rotating disk 19. A gas supply pipe 21 is fixedly connected to the rotating ring 20. A second fixing plate 25 is fixedly connected to the inner wall of the rotating tube 18. A first rotating rod 26 is rotatably mounted on the inner wall of the second fixing plate 25. Multiple annularly distributed vortex fan blades 27 are fixedly connected to the outer wall of the first rotating rod 26. A square rod 28 with a square cross section is slidably connected to the inner wall of the first rotating rod 26. A swing plate 30 is fixedly connected to one end of the square rod 28. An abutment rod 31 is fixedly connected to the outer wall of the swing plate 30. A second abutment ball 32 is rotatably mounted at the end of the abutment rod 31. A second rotating rod 36 is fixedly connected to the outer wall of the swing plate 30. A rotating abutment block 37 with a frustum shape is fixedly connected to one end of the second rotating rod 36.

[0022] A return spring 29 is sleeved on the outer wall of the square rod 28. One end of the return spring 29 is fixedly connected to the end of the first rotating rod 26, and the other end of the return spring 29 is fixedly connected to the outer wall of the swing plate 30.

[0023] The inner wall of the rotating tube 18 is fixedly connected with a plurality of annularly distributed second contact blocks 34 and first contact blocks 33. The outer wall of the second contact block 34 is provided with an arc-shaped contact surface 35. The first contact block 33 is a hemispherical block. The movement trajectory of the second contact ball 32 collides with the first contact block 33 and the second contact block 34.

[0024] Multiple ring-shaped cleaning bristles 17 are fixedly connected to the end of the rotating tube 18. Multiple ring-shaped fixing frames 38 are fixedly connected to the end of the rotating tube 18. A third rotating rod 39 is rotatably connected to the inner wall of the fixing frame 38. A rotating block 41 is sleeved on the outer wall of the third rotating rod 39. An arc-shaped air guide shroud 42 is fixedly connected to the outer wall of the rotating block 41. A torsion spring 40 is sleeved on the outer wall of the third rotating rod 39. One end of the torsion spring 40 is fixedly connected to the outer wall of the rotating block 41, and the other end of the torsion spring 40 is fixedly connected to the inner wall of the fixing frame 38.

[0025] The outer wall of the arc-shaped air guide shroud 42 is fixedly connected to a third abutment block 43, and the movement trajectory of the rotating abutment block 37 abuts against the third abutment block 43.

[0026] The outer wall of the test workbench 1 is fixedly connected to the test table 2, the test base 3 is fixedly connected to the surface of the test table 2, the outer wall of the test base 3 is fixedly connected to the first fixing plate 23, the outer wall of the first fixing plate 23 is rotatably installed with the first abutting ball 24, the outer wall of the rotating tube 18 is provided with a spiral guide groove 22, and the first abutting ball 24 is slidably installed on the inner wall of the spiral guide groove 22.

[0027] The outer wall of the test base 3 is provided with a first sliding groove 4, the inner wall of the first sliding groove 4 is slidably connected with a first sliding seat 5, and the outer wall of the first sliding seat 5 is threadedly connected with a first fixing bolt 8 and a second fixing bolt 9.

[0028] The outer wall of the test base 3 is provided with a second sliding groove 7, which is connected to the first sliding groove 4, and the first fixing bolt 8 passes through the second sliding groove 7.

[0029] The outer wall of the first sliding seat 5 is fixedly connected to the second sliding seat 6, the rotating tube 18 is rotatably installed on the outer wall of the second sliding seat 6, and the outer wall of the second sliding seat 6 is fixedly installed with an intelligent photoelectric sensor 10.

[0030] A fixing plate 11 is fixedly connected to the outer wall of the second sliding seat 6. A connecting rod 12 is fixedly connected to the outer wall of the fixing plate 11. A first conductive copper busbar 13 is fixedly installed on the outer wall of the connecting rod 12. A fuse body 14 is fixedly connected to the outer wall of the first conductive copper busbar 13. A second conductive copper busbar 15 is fixedly connected to one end of the fuse body 14. An insulator 16 is fixedly connected to one end of the second conductive copper busbar 15.

[0031] Working principle: When using this fuse temperature rise test fixing device, firstly, the fuse body 14 to be tested is connected to the first conductive copper busbar 13 and the second conductive copper busbar 15 at both ends by bolts and nuts. After the connection is completed, the second sliding seat 6 and the first sliding seat 5 are pushed forward. The first sliding seat 5 slides along the first sliding groove 4. When sliding, the rotating tube 18 moves towards the fuse body 14. The movement of the rotating tube 18 causes the spiral guide groove 22 on its outer wall to move around the outer wall of the first abutting ball 24. Since the first abutting ball 24 cannot move, the spiral guide groove 22 is forced to rotate the rotating tube 18. The rotating tube 18 moves closer to the fuse body 14 while rotating. The annularly distributed cleaning bristles 17 at the end of the rotating tube 18 clean the terminals and surface of the fuse body 14.

[0032] While cleaning is being carried out, the gas pipeline 21 is always connected to high-pressure gas. The high-pressure gas is delivered into the rotating disk 19. It should be noted that the rotation of the rotating pipe 18 causes the rotating disk 19 to rotate synchronously, but the rotating ring 20 can keep the gas pipeline 21 from rotating, to prevent the gas pipeline 21 and its external gas pipe from getting stuck. A portion of the high-pressure gas is sprayed directly from the rotating pipe 18 onto the surface of the fuse body 14, blowing away the impurities swept off the surface of the fuse body 14 by the cleaning brush bristles 17, further cleaning the fuse body 14 and its surrounding connectors.

[0033] The high-pressure gas fed into the rotating disk 19 blows onto the vortex fan blade 27, causing the vortex fan blade 27 to rotate under lateral force. As the vortex fan blade 27 rotates, it causes the first rotating rod 26 to rotate synchronously. The first rotating rod 26, in turn, causes the square rod 28 to rotate synchronously. The square rod 28, in turn, causes the swing plate 30 to rotate synchronously. The swing plate 30, in turn, causes the contact rod 31 to move in a circular motion. As the contact rod 31 moves in a circular motion, it causes the second contact ball 32 to move synchronously. The trajectory of the second contact ball 32 will cause it to collide with multiple first contact blocks 33 and second contact blocks 34. When it collides with a first contact block 33, because the first contact blocks 33 are relatively densely arranged, the collision causes the second contact ball 32 to be forced, pulling the contact rod 31 and the square rod 28 towards the first rotating rod 26. The sliding of the 6-axis causes part of the square rod 28 to slide into the first rotating rod 26, and the downward movement of the swing plate 30 compresses the return spring 29. When the second abutting ball 32 releases its contact with a single first abutting block 33, the return spring 29 resets, causing all mechanisms to reset. Therefore, the arrangement of multiple first abutting blocks 33 causes the swing plate 30 to move back and forth with the second rotating rod 36 and the rotating abutting block 37 in a small amplitude. The high-frequency up-and-down reciprocating movement of the rotating abutting block 37 causes its outer wall to continuously reciprocate against the third abutting block 43, causing the third abutting block 43 to swing back and forth with the arc-shaped air guide shroud 42 in a small amplitude. The air blown out from the rotating tube 18 will then reciprocate and diffuse in a small amplitude, further enhancing the cleaning effect on the surface of the fuse body 14.

[0034] When the second contact ball 32 slides circumferentially against the second contact block 34, the second contact ball 32 first rises to the highest point of the surface of the second contact block 34 through the arc-shaped contact surface 35 on the outer wall of the second contact block 34. At this time, the entire swing plate 30, along with the second rotating rod 36 and the rotating contact block 37, rises a certain distance. Since there is a flat area on the surface of the second contact block 34, the rotating contact block 37 will remain in contact with the third contact block 43 for a period of time before releasing the contact. This causes the multiple third contact blocks 43 to be in an open state, and the gas blown out from the rotating tube 18 is diffused, expanding the cleaning range.

[0035] After cleaning, before testing, attach the thermocouple to the surface of terminal 14 of the fuse body and fix it with electrical tape to ensure that it will not fall off. Connect the positive and negative terminals of the power supply to the first conductive copper busbar 13 and the second conductive copper busbar 15 respectively through the cable. At this time, the preliminary preparation work before testing is completed.

[0036] Then, pull the first sliding seat 5 and the second sliding seat 6 outwards, so that the connection between the connecting rod 12, the first conductive copper busbar 13, the fuse body 14, and the second conductive copper busbar 15 is in a tight state. Then, rotate the first fixing bolt 8. After the first fixing bolt 8 rotates, it moves towards the first sliding seat 5 through the threaded connection with the first sliding seat 5 until the larger end of the first sliding seat 5 is pressed against the groove opening of the second sliding groove 7. The friction force restricts the first sliding seat 5 from moving further. Then, rotate the second fixing bolt 9. The second fixing bolt 9, through the threaded connection with the first sliding seat 5, passes through the first sliding seat 5 and abuts against the inner wall of the first sliding groove 4. The friction force further restricts the sliding of the first sliding seat 5. The pre-test positioning and locking is completed.

[0037] Before starting the test, power on the intelligent photoelectric sensor 10 to activate it. The intelligent photoelectric sensor 10 can detect whether the position of the fuse body 14 is fixed in place.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fuse temperature rise test fixing device, comprising a test workbench (1), a test base (3), and a rotating tube (18), characterized in that: A rotating disk (19) is fixedly connected to the outer wall of the rotating pipe (18). A rotating ring (20) is rotatably mounted on the outer wall of the rotating disk (19). An air supply pipe (21) is fixedly connected to the rotating ring (20). A second fixing plate (25) is fixedly connected to the inner wall of the rotating pipe (18). A first rotating rod (26) is rotatably mounted on the inner wall of the second fixing plate (25). A plurality of annularly distributed vortex fan blades (27) are fixedly connected to the outer wall of the first rotating rod (26). A square rod (28) is slidably connected to the wall. The square rod (28) has a square cross section. A swing plate (30) is fixedly connected to one end of the square rod (28). An abutment rod (31) is fixedly connected to the outer wall of the swing plate (30). A second abutment ball (32) is rotatably installed at the end of the abutment rod (31). A second rotating rod (36) is fixedly connected to the outer wall of the swing plate (30). A rotating abutment block (37) is fixedly connected to one end of the second rotating rod (36). The rotating abutment block (37) has a frustum shape.

2. The fuse temperature rise test fixing device according to claim 1, characterized in that: A return spring (29) is fitted on the outer wall of the square rod (28). One end of the return spring (29) is fixedly connected to the end of the first rotating rod (26), and the other end of the return spring (29) is fixedly connected to the outer wall of the swing plate (30).

3. The fuse temperature rise test fixing device according to claim 1, characterized in that: The inner wall of the rotating tube (18) is fixedly connected with a plurality of annularly distributed second contact blocks (34) and first contact blocks (33). The outer wall of the second contact block (34) is provided with an arc-shaped contact surface (35). The first contact block (33) is a hemispherical block. The movement trajectory of the second contact ball (32) collides with the first contact block (33) and the second contact block (34).

4. The fuse temperature rise test fixing device according to claim 1, characterized in that: The end of the rotating tube (18) is fixedly connected to a plurality of annularly distributed cleaning bristles (17), and the end of the rotating tube (18) is fixedly connected to a plurality of annularly distributed fixing frames (38). The inner wall of the fixing frame (38) is rotatably connected to a third rotating rod (39). The outer wall of the third rotating rod (39) is fitted with a rotating block (41). The outer wall of the rotating block (41) is fixedly connected to an arc-shaped air guide hood (42). The outer wall of the third rotating rod (39) is fitted with a torsion spring (40). One end of the torsion spring (40) is fixedly connected to the outer wall of the rotating block (41), and the other end of the torsion spring (40) is fixedly connected to the inner wall of the fixing frame (38).

5. The fuse temperature rise test fixing device according to claim 4, characterized in that: The outer wall of the arc-shaped air guide shroud (42) is fixedly connected to a third abutment block (43), and the moving trajectory of the rotating abutment block (37) abuts against the third abutment block (43).

6. The fuse temperature rise test fixing device according to claim 1, characterized in that: The outer wall of the test workbench (1) is fixedly connected to the test tabletop (2), and the test base (3) is fixedly connected to the surface of the test tabletop (2). The outer wall of the test base (3) is fixedly connected to the first fixing plate (23), and the outer wall of the first fixing plate (23) is rotatably installed with the first abutting ball (24). The outer wall of the rotating tube (18) is provided with a spiral guide groove (22), and the first abutting ball (24) is slidably installed on the inner wall of the spiral guide groove (22).

7. The fuse temperature rise test fixing device according to claim 6, characterized in that: The outer wall of the test base (3) is provided with a first sliding groove (4), the inner wall of the first sliding groove (4) is slidably connected with a first sliding seat (5), and the outer wall of the first sliding seat (5) is threadedly connected with a first fixing bolt (8) and a second fixing bolt (9).

8. The fuse temperature rise test fixing device according to claim 7, characterized in that: The outer wall of the test base (3) is provided with a second sliding groove (7), which is connected to the first sliding groove (4), and the first fixing bolt (8) passes through the second sliding groove (7).

9. The fuse temperature rise test fixing device according to claim 7, characterized in that: The outer wall of the first sliding seat (5) is fixedly connected to the second sliding seat (6), the rotating tube (18) is rotatably installed on the outer wall of the second sliding seat (6), and the outer wall of the second sliding seat (6) is fixedly installed with a smart photoelectric sensor (10).

10. A fuse temperature rise test fixing device according to claim 9, characterized in that: A fixing plate (11) is fixedly connected to the outer wall of the second sliding seat (6). A connecting rod (12) is fixedly connected to the outer wall of the fixing plate (11). A first conductive copper busbar (13) is fixedly installed on the outer wall of the connecting rod (12). A fuse body (14) is fixedly connected to the outer wall of the first conductive copper busbar (13). A second conductive copper busbar (15) is fixedly connected to one end of the fuse body (14). An insulator (16) is fixedly connected to one end of the second conductive copper busbar (15).

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