Totally-enclosed high-voltage fuse

Abstract

The utility model relates to a totally-enclosed high-voltage fuse, which comprises a fuse main body, the bottom of the fuse main body is fixedly connected with an installation base, the top of the installation base is fixedly connected with an insulation shell, the insulation shell is internally provided with a first internal groove, and the interior of the first internal groove is fixedly connected with an electromagnet. According to the technical scheme of the utility model, when the fuse is fused, the electromagnet is powered off, so that the repulsive force between the electromagnet and the magnet block disappears, and the magnet block slides towards the bottom of the first internal groove, thereby pushing the sliding rod, enabling the sliding rod to slide towards the interior of the second internal groove, and extruding the pressure sensor. And when the pressure detected by the pressure sensor reaches a preset value, the wireless transmission device transmits data, so that a worker can conveniently determine the position of the fault fuse.

Description

Technical Field

[0001] The utility model relates to the technical field of fuses, in particular to a fully enclosed high-voltage fuse. Background Art

[0002] A fuse is an electrical device that uses the heat generated by itself to melt the fuse and disconnect the circuit when the current exceeds the specified value. Fuses are widely used in high and low voltage power distribution systems and control systems as well as electrical equipment. As a short circuit and overcurrent protector, they are one of the most commonly used protective devices. Transformers are equipped with high-voltage fuses. When a transformer fails and the current rises to a certain value, the fuse in the high-voltage fuse will melt and cut off the current, thereby protecting the safe operation of the transformer.

[0003] According to a Chinese patent application with patent number 202223368743.3, a fully enclosed fuse is disclosed, including a porcelain sleeve, characterized in that: a fuse carrier is installed inside the porcelain sleeve, and the fuse carrier includes a fuse carrier tube, the fuse carrier tube is a tubular structure with two ends opened and the interior hollow, the lower end of the fuse carrier tube is connected to an operating end by a thread, a spring is sleeved in the middle of the fuse carrier tube, a sliding sleeve is sleeved on the outer side of the fuse carrier tube located at the top of the spring, a clamping bolt is installed on the outer side of the sliding sleeve, a fuse is arranged in the fuse carrier tube, the bottom end of the fuse extends from the opening of the operating end and is clamped and fixed to the outer side of the sliding sleeve by the clamping bolt, and the fully insulated closed design provided therein prevents the internal components from being exposed to the natural environment, has the functions of resisting wind and sand, rain and snow, and oxidation, greatly improves the anti-fouling ability of the equipment, and prolongs the service life of the equipment, and the inlet and outlet leads adopt a rubber one-piece molding structure, which can effectively prevent dust pollution, salt pollution, etc., and has high weather resistance.

[0004] However, when the fully enclosed fuse is used in remote areas or mountainous areas, once a fault occurs, its location cannot be quickly determined, and the staff needs to search one by one, which increases the staff's workload and reduces maintenance efficiency. To this end, we propose a fully enclosed high-voltage fuse. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a fully enclosed high-voltage fuse, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fully enclosed high-voltage fuse, including a fuse body, a mounting base fixedly connected to the bottom of the fuse body, an insulating shell fixedly connected to the top of the mounting base, a first internal groove is provided inside the insulating shell, an electromagnet is fixedly connected inside the first internal groove, two corresponding second internal grooves are provided inside the insulating shell and located on one side of the first internal groove, a magnet block is slidably connected inside the first internal groove, the electromagnet and the magnet block cooperate with each other, a pressure sensor is arranged inside the second internal groove, and a mounting frame is fixedly connected to the outside of the fuse body, a first slide groove is provided inside the mounting frame, and a fixing rod is inserted inside the first slide groove.

[0007] Preferably, the interior of the second internal groove is slidably connected to a sliding rod, a first telescopic spring is arranged inside the second internal groove, one end of the first telescopic spring is fixedly connected to the top of the pressure sensor, and the other end of the first telescopic spring is fixedly connected to the bottom of the sliding rod, and the second internal groove cooperates with the magnet block. Through the cooperation between the pressure sensor, the first telescopic spring and the sliding rod, when the magnet block falls, its falling impact force can be buffered, thereby protecting the pressure sensor.

[0008] Preferably, an introduction end is provided at the top of the fuse body, a fuse tube is provided inside the fuse body, a fuse is provided inside the fuse tube, a lead-out wire is provided inside the fuse body, a bottom cover is provided inside the mounting base, the lead-out wire passes through the bottom cover and extends to the outside, and the lead-out wire, the fuse tube and the introduction end cooperate with each other.

[0009] Preferably, a connecting wire is fixedly connected to the bottom of the electromagnet, one end of which extends to the inside of the fuse body and is connected to the fuse tube, and the electromagnet can operate normally through the cooperation between the fuse tube and the connecting wire.

[0010] Preferably, a wireless transmission device is fixedly connected to the outside of the pressure sensor, and data information can be transmitted through the wireless transmission device when the pressure applied to the pressure sensor reaches a preset value, which makes it convenient for staff to determine the location of the faulty fuse, thereby performing quick and effective maintenance and reducing the workload of staff.

[0011] Preferably, two corresponding second slide grooves are provided inside the mounting frame and located on the outer side of the first slide groove, a third slide groove is provided inside the mounting frame and located on one side of the second slide groove, a fourth slide groove is provided inside the mounting frame and located on one side of the third slide groove, the second slide groove is slidably connected to the second slider, one side of the second slider is fixedly connected to the third slider, the third slider is slidably connected to the inside of the third slide groove, one side of the third slider is fixedly connected to the fourth slide rod, and the fourth slide rod is slidably connected to the inside of the fourth slide groove, and two corresponding card grooves are provided inside the fixing rod, and the card grooves cooperate with the second slider, and the mounting frame, the first slide groove, the second slide groove, the third slide groove, the fourth slide groove, the second slider, the third slider, the fourth slide rod, the second telescopic spring, the fixing rod and the card groove cooperate with each other, so as to preliminarily fix the fully enclosed high-voltage fuse, so that the staff can conveniently perform subsequent installation of the fully enclosed high-voltage fuse.

[0012] Preferably, a second telescopic spring is arranged inside the third slide groove, one end of the second telescopic spring is fixedly connected to the inner wall of the third slide groove, and the other end of the second telescopic spring is fixedly connected to one side of the third sliding block.

[0013] The utility model provides a fully enclosed high-voltage fuse, which has the following beneficial effects:

[0014] 1. The fully enclosed high-voltage fuse, through the mutual cooperation of the fuse tube, the connecting wire, the electromagnet, the magnet block, the second internal groove, the pressure sensor, the first telescopic spring, the sliding rod and the wireless transmission device, can cut off the power to the electromagnet when the fuse is blown, so that the repulsive force between the electromagnet and the magnet block disappears, the magnet block slides to the bottom of the first internal groove, and then pushes the sliding rod to slide to the inside of the second internal groove, squeezing the pressure sensor. When the pressure detected by the pressure sensor reaches a preset value, the wireless transmission device transmits data, which is convenient for the staff to determine the position of the faulty fuse, thereby performing fast and effective maintenance, improving the maintenance efficiency of the staff, and reducing the work intensity of the staff.

[0015] 2. The fully enclosed high-voltage fuse, through the mutual cooperation of the mounting frame, the first slide slot, the second slide slot, the third slide slot, the fourth slide slot, the second slider, the third slider, the fourth slide bar, the second telescopic spring, the fixed rod and the card slot, when installing the fully enclosed high-voltage fuse, the fixed rod is first inserted into the interior of the first slide slot, so that the second slider is carded into the interior of the card slot, and the fully enclosed high-voltage fuse is preliminarily fixed, which is convenient for subsequent installation and improves the installation efficiency of the fully enclosed high-voltage fuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a diagram of the clamping mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the interior of the insulating shell of the utility model.

[0019] In the figure: 1. fuse body; 2. mounting base; 3. bottom cover; 4. lead-out wire; 5. fuse tube; 6. connecting wire; 7. insulating shell; 8. first internal groove; 9. electromagnet; 10. magnet block; 11. second internal groove; 12. pressure sensor; 13. first telescopic spring; 14. sliding rod; 15. wireless transmission device; 16. lead-in end; 17. mounting frame; 18. first slide groove; 19. second slide groove; 20. third slide groove; 21. fourth slide groove; 22. second slider; 23. third slider; 24. fourth slider; 25. second telescopic spring; 26. fixing rod; 27. slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a fully enclosed high-voltage fuse, including a fuse body 1, a mounting base 2 is fixedly connected to the bottom of the fuse body 1, an insulating shell 7 is fixedly connected to the top of the mounting base 2, a first internal groove 8 is provided inside the insulating shell 7, an electromagnet 9 is fixedly connected to the inside of the first internal groove 8, two corresponding second internal grooves 11 are provided inside the insulating shell 7 and located on one side of the first internal groove 8, a magnet block 10 is slidably connected to the inside of the first internal groove 8, the electromagnet 9 and the magnet block 10 cooperate with each other, a pressure sensor 12 is arranged inside the second internal groove 11, a mounting frame 17 is fixedly connected to the outside of the fuse body 1, a first slide groove 18 is provided inside the mounting frame 17, and a fixing rod 26 is inserted into the inside of the first slide groove 18.

[0022] The second inner groove 11 is slidably connected to a sliding rod 14, a first telescopic spring 13 is arranged inside the second inner groove 11, one end of the first telescopic spring 13 is fixedly connected to the top of the pressure sensor 12, and the other end of the first telescopic spring 13 is fixedly connected to the bottom of the sliding rod 14, the second inner groove 11 cooperates with the magnet block 10, and through the cooperation between the pressure sensor 12, the first telescopic spring 13 and the sliding rod 14, when the magnet block 10 falls, its falling impact force can be buffered, thereby protecting the pressure sensor 12.

[0023] An introduction end 16 is provided at the top of the fuse body 1, a fuse tube 5 is provided inside the fuse body 1, a fuse is provided inside the fuse tube 5, a lead-out wire 4 is provided inside the fuse body 1, a bottom cover 3 is provided inside the mounting base 2, the lead-out wire 4 passes through the bottom cover 3 and extends to the outside, and the lead-out wire 4, the fuse tube 5 and the introduction end 16 cooperate with each other.

[0024] The bottom of the electromagnet 9 is fixedly connected with a connecting wire 6, one end of which extends to the inside of the fuse body 1 and is connected to the fuse tube 5. Through the cooperation between the fuse tube 5 and the connecting wire 6, the electromagnet 9 can operate normally.

[0025] A wireless transmission device 15 is fixedly connected to the outside of the pressure sensor 12. When the pressure applied to the pressure sensor 12 reaches a preset value, the wireless transmission device 15 can transmit data information, making it convenient for the staff to determine the location of the faulty fuse, thereby performing quick and effective maintenance and reducing the workload of the staff.

[0026] Two corresponding second slide grooves 19 are provided inside the mounting frame 17 and on the outside of the first slide groove 18. A third slide groove 20 is provided inside the mounting frame 17 and on one side of the second slide groove 19. A fourth slide groove 21 is provided inside the mounting frame 17 and on one side of the third slide groove 20. A second slider 22 is slidably connected inside the second slide groove 19. A third slider 23 is fixedly connected to one side of the second slider 22. The third slider 23 is slidably connected to the inside of the third slide groove 20. A fourth slide bar 24 is fixedly connected to one side of the third slide bar 23. The fourth slide bar 24 is slidably connected to the inside of the fourth slide groove 21. Two fixed rods 26 are provided inside The fully enclosed high-voltage fuse is initially fixed by the cooperation of the mounting frame 17, the first slide slot 18, the second slide slot 19, the third slide slot 20, the fourth slide slot 21, the second slide block 22, the third slide block 23, the fourth slide bar 24, the second telescopic spring 25, the fixing rod 26 and the slot 27, so as to facilitate the subsequent installation of the staff. The third slide slot 20 is provided with a second telescopic spring 25, one end of the second telescopic spring 25 is fixedly connected to the inner wall of the third slide slot 20, and the other end of the second telescopic spring 25 is fixedly connected to one side of the third slide block 23.

[0027] In summary, when the fully enclosed high-voltage fuse is used, when power is turned on, the electromagnet 9 is powered by the connecting wire 6, so that the electromagnet 9 can operate normally. According to the principle that the electromagnet 9 and the magnet block 10 repel each other, the magnet block 10 is lifted up. When the fuse is blown, the electromagnet 9 is powered off, so that the repulsive force between the electromagnet 9 and the magnet block 10 disappears, and the magnet block 10 slides to the bottom of the first internal groove 8, thereby pushing the sliding rod 14 to slide to the inside of the second internal groove 11, and the first telescopic spring 13 contracts to squeeze the pressure sensor 12. When the pressure detected by the pressure sensor 12 reaches the preset value, the wireless transmission device 15 transmits the data, which is convenient for work. The personnel determine the position of the fault fuse. When installing the fully enclosed high-voltage fuse, first insert the fixing rod 26 into the first slide groove 18, push the second slider 22 to slide into the second slide groove 19, and then push the third slider 23 to slide into the third slide groove 20, so that the second telescopic spring 25 is contracted. When the fixing rod 26 is inserted into the first slide groove 18, the second telescopic spring 25 rebounds, pushing the third slider 23 and the second slider 22 to reset, so that the second slider 22 is inserted into the slot 27, and then the fixing rod 26 is fixed, completing the preliminary fixation of the fully enclosed high-voltage fuse, which is convenient for the staff to carry out subsequent installation.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully enclosed high-voltage fuse, comprising a fuse body (1), characterized in that: The bottom of the fuse body (1) is fixedly connected to a mounting base (2), the top of the mounting base (2) is fixedly connected to an insulating shell (7), a first internal groove (8) is provided inside the insulating shell (7), an electromagnet (9) is fixedly connected inside the first internal groove (8), two corresponding second internal grooves (11) are provided inside the insulating shell (7) and located on one side of the first internal groove (8), a magnet block (10) is slidably connected inside the first internal groove (8), the electromagnet (9) and the magnet block (10) cooperate with each other, a pressure sensor (12) is provided inside the second internal groove (11), the outer side of the fuse body (1) is fixedly connected to a mounting frame (17), a first sliding groove (18) is provided inside the mounting frame (17), a fixing rod (26) is inserted inside the first sliding groove (18).

2. A fully enclosed high voltage fuse according to claim 1, characterized in that: The interior of the second internal groove (11) is slidably connected to a sliding rod (14), and a first telescopic spring (13) is arranged inside the second internal groove (11). One end of the first telescopic spring (13) is fixedly connected to the top of the pressure sensor (12), and the other end of the first telescopic spring (13) is fixedly connected to the bottom of the sliding rod (14). The second internal groove (11) cooperates with the magnet block (10).

3. A fully enclosed high voltage fuse according to claim 1, characterized in that: The top of the fuse body (1) is provided with an introduction end (16), the interior of the fuse body (1) is provided with a fuse tube (5), the interior of the fuse tube (5) is provided with a fuse, the interior of the fuse body (1) is provided with a lead-out wire (4), the interior of the mounting base (2) is provided with a bottom cover (3), the lead-out wire (4) penetrates the bottom cover (3) and extends to the outside, and the lead-out wire (4), the fuse tube (5) and the introduction end (16) cooperate with each other.

4. A fully enclosed high voltage fuse according to claim 1, characterized in that: A connecting wire (6) is fixedly connected to the bottom of the electromagnet (9), and one end of the connecting wire (6) extends to the interior of the fuse body (1) and is connected to the fuse tube (5).

5. A fully enclosed high voltage fuse according to claim 1, characterized in that: A wireless transmission device (15) is fixedly connected to the outer side of the pressure sensor (12).

6. A fully enclosed high voltage fuse according to claim 1, characterized in that: Two corresponding second slide grooves (19) are provided inside the mounting frame (17) and located on the outside of the first slide groove (18); a third slide groove (20) is provided inside the mounting frame (17) and located on one side of the second slide groove (19); a fourth slide groove (21) is provided inside the mounting frame (17) and located on one side of the third slide groove (20); a second slider (22) is slidably connected inside the second slide groove (19); a third slider (23) is fixedly connected to one side of the second slider (22); the third slider (23) is slidably connected to the inside of the third slide groove (20); a fourth slide bar (24) is fixedly connected to one side of the third slider (23); the fourth slide bar (24) is slidably connected to the inside of the fourth slide groove (21); two corresponding card grooves (27) are provided inside the fixing rod (26); the card grooves (27) and the second slider (22) cooperate with each other.

7. A fully enclosed high voltage fuse according to claim 6, characterized in that: A second telescopic spring (25) is arranged inside the third slide groove (20), one end of the second telescopic spring (25) is fixedly connected to the inner wall of the third slide groove (20), and the other end of the second telescopic spring (25) is fixedly connected to one side of the third sliding block (23).

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