Intelligent all-insulation drop-out fuse

Abstract

The utility model discloses an intelligent all-insulation drop-out fuse, comprising a fuse tube and an all-insulation drop-out fuse body, the fuse tube is installed and connected in the inner side of the front end of the all-insulation drop-out fuse body, and the inner side of the fuse tube is provided with a fuse body on the all-insulation drop-out fuse body. A temperature detector is arranged on the peripheral side of the fuse tube, an expansion telescopic mechanism is arranged between the fuse tube and the all-insulation drop-out fuse body, a puncture expansion mechanism is arranged at the lower end of the expansion telescopic mechanism, and a drop-out abutting block is arranged at the front end of the expansion telescopic mechanism. And the puncture expansion mechanism and the temperature detector are electrically connected with an external controller through connecting wires. The intelligent all-insulation drop-out fuse disclosed by the utility model has the technical effects that gas is punctured and conveyed through the puncture expansion mechanism, so that the expansion telescopic mechanism drives the drop-out propping block to move outwards to prop against the fuse tube, and the fuse tube can drop safely.

Description

Technical Field

[0001] This utility model relates to the field of drop-out fuse technology, and in particular to an intelligent fully insulated drop-out fuse. Background Technology

[0002] Drop-out fuses are the most commonly used short-circuit protection switches for 10kV distribution line branches and distribution transformers. They are economical, easy to operate, and highly adaptable to outdoor environments. They are widely used on the primary side of 10kV distribution lines and distribution transformers for protection and equipment switching operations, and have become widely adopted.

[0003] The existing Chinese patent CN106158550B, disclosed on April 2, 2019, discloses a drop-out fuse, including: an insulator; a rain cap having an inverted U-shaped part and two sheet-like guide parts, the rain cap being an integral structure, and a conductive component being provided within the inverted U-shaped part; a drop-out device including first and second conductive seats, the first conductive seat being connected to the lower end of the insulator; and a fuse tube connected to the second conductive seat, which is hung in the hook groove of the first conductive seat via a hanging rod of the second conductive seat, so that the fuse tube can rotate relative to the insulator.

[0004] However, the aforementioned device lacks a corresponding intelligent drop mechanism, thus failing to effectively and intelligently control the drop, which makes it unsafe to use. Utility Model Content

[0005] This utility model discloses an intelligent fully insulated drop-out fuse, which aims to solve the technical problem that the above-mentioned devices lack a corresponding intelligent drop-out mechanism, thus failing to effectively and intelligently control the drop-out, making them unsafe to use.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An intelligent fully insulated drop-out fuse includes a fuse tube and a fully insulated drop-out fuse body. The fuse tube is installed and connected to the inner front end of the fully insulated drop-out fuse body. A fuse body is provided on the inner side of the fuse tube on the fully insulated drop-out fuse body. A temperature detector is provided on the periphery of the fuse tube. An expansion and telescopic mechanism is provided between the fuse tube and the fully insulated drop-out fuse body. A puncture expansion mechanism is provided at the lower end of the expansion and telescopic mechanism. A drop-out abutment block is provided at the front end of the expansion and telescopic mechanism. The puncture expansion mechanism and the temperature detector are electrically connected to an external controller through a connecting wire.

[0008] The expansion and telescopic mechanism includes a hollow sleeve, a T-shaped movable rod, an abutment spring, an air inlet, and a connecting end plate. The front end of the connecting end plate is provided with a hollow sleeve, and the lower inner side of the hollow sleeve is provided with an air inlet. The bottom inner end of the hollow sleeve is provided with an abutment spring, and the front end of the abutment spring is located inside the hollow sleeve, where a T-shaped movable rod is provided. The front end of the T-shaped movable rod is provided with a drop-out abutment block. The connecting end plate is fixed to the body of the fully insulated drop-out fuse.

[0009] The temperature detector can be used to monitor the temperature of the fuse body. When the temperature of the fuse body is too high, it will be detected by the temperature detector and transmitted to the external controller. The external controller will then control the puncture expansion mechanism to puncture the internal gas storage bag. When the puncture occurs, gas is generated. The gas then causes the expansion and contraction mechanism to expand and contract, which in turn moves the drop-out contact block outward. The drop-out contact block then pushes the fuse tube off the body of the fully insulated drop-out fuse, making it safer when disconnecting.

[0010] In a preferred embodiment, the puncture expansion mechanism includes an electric telescopic cylinder, an airbag sleeve, an air reservoir, a puncture needle, and a first coupling. The lower end of the airbag sleeve is provided with the electric telescopic cylinder, the telescopic rod end of the electric telescopic cylinder is provided with the first coupling, the upper end of the first coupling is provided with the puncture needle, and an air reservoir is provided above the puncture needle on the airbag sleeve. The airbag sleeve is fixedly connected to the expansion and telescopic mechanism.

[0011] The structure is equipped with a puncture and expansion mechanism, which allows for positioning and outward movement to achieve resistance.

[0012] In a preferred embodiment, the temperature detector includes an infrared temperature sensor, a retaining ring, and a power connection wire. The infrared temperature sensor is disposed on the inner side of the retaining ring, and the power connection wire is disposed on the outer end of the infrared temperature sensor. The power connection wire is electrically connected to an external controller.

[0013] Temperature can be detected by incorporating a temperature detector structure.

[0014] In a preferred embodiment, the drop contact block is made of ceramic material.

[0015] By incorporating a drop-off contact block structure, effective insulation against contact can be achieved.

[0016] In a preferred embodiment, the T-shaped movable rod is sleeved inside the middle of the hollow sleeve.

[0017] The hollow sleeve structure allows the T-shaped movable rod to be positioned and moved.

[0018] In a preferred embodiment, the expansion and contraction mechanism and the puncture expansion mechanism are fixedly connected by welding, and the connection is continuous.

[0019] By incorporating a puncture-expansion mechanism, the punctured gas can be transmitted to the expansion-contraction mechanism, allowing the expansion-contraction mechanism to extend and engage.

[0020] In a preferred embodiment, the extension length of the T-shaped movable rod is greater than the distance between the fuse tube and the body of the fully insulated drop-out fuse.

[0021] The T-shaped movable rod structure allows for contact between the fuse tube and the fully insulated drop-out fuse body.

[0022] As described above, an intelligent fully insulated drop-out fuse includes a fuse tube and a fuse body. The fuse tube is installed inside the front end of the fuse body. A fuse body is located on the inner side of the fuse tube within the fuse body. A temperature detector is located around the periphery of the fuse tube. An expansion and contraction mechanism is provided between the fuse tube and the fuse body. A puncture expansion mechanism is located at the lower end of the expansion and contraction mechanism, and a drop-out contact block is located at the front end of the mechanism. The puncture expansion mechanism and the temperature detector are electrically connected to an external controller via a connecting wire. The intelligent fully insulated drop-out fuse provided by this invention has the technical effect of puncturing and delivering gas through the puncture expansion mechanism, causing the expansion and contraction mechanism to move the drop-out contact block outward to contact the fuse tube, thus allowing the fuse tube to safely drop. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of an intelligent fully insulated drop-out fuse proposed in this utility model.

[0024] Figure 2 This is a schematic diagram of the internal structure of the fuse tube of an intelligent fully insulated drop-out fuse proposed in this utility model.

[0025] Figure 3 This is a schematic diagram of the drop-out contact block, expansion and telescopic mechanism, and puncture expansion mechanism of an intelligent fully insulated drop-out fuse proposed in this utility model.

[0026] Figure 4 This is a cross-sectional schematic diagram of the expansion and telescopic mechanism of an intelligent fully insulated drop-out fuse proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the puncture expansion mechanism of an intelligent fully insulated drop-out fuse proposed in this utility model.

[0028] In the attached diagram: 1. Drop-out contact block; 2. Fuse tube; 3. Temperature detector; 31. Infrared temperature sensor; 32. Fixing collar; 33. Power connection wire; 4. Fully insulated drop-out fuse body; 41. Fuse body; 5. Expansion and telescopic mechanism; 51. Hollow sleeve; 52. T-shaped movable rod; 53. Contact spring; 54. Air inlet; 55. Connecting end plate; 6. Puncture expansion mechanism; 61. Electric telescopic cylinder; 62. Airbag sleeve; 63. Air storage bag; 64. Puncture needle; 65. First coupling. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Reference Figures 1-5 An intelligent fully insulated drop-out fuse includes a fuse tube 2 and a fully insulated drop-out fuse body 4. The fuse tube 2 is installed inside the front end of the fully insulated drop-out fuse body 4. A fuse body 41 is installed on the inner side of the fuse tube 2 on the fully insulated drop-out fuse body 4. The fuse body 41 facilitates the connection and conduction of the current input at the upper end of the fully insulated drop-out fuse body 4. A temperature detector 3 is installed on the periphery of the fuse tube 2. The temperature detector 3 can detect the temperature of the fuse body 41. When the temperature of the fuse body 41 is too high, it will be detected by the temperature detector 3 and transmitted to an external controller. In the circuit, an expansion and telescopic mechanism 5 is provided between the fuse tube 2 and the fully insulated drop-out fuse body 4. The lower end of the expansion and telescopic mechanism 5 is provided with a puncture expansion mechanism 6, and the front end of the expansion and telescopic mechanism 5 is provided with a drop-out contact block 1. When the puncture expansion mechanism 6 is punctured, gas is generated. The gas then causes the expansion and telescopic mechanism 5 to expand and telescopic, which in turn drives the drop-out contact block 1 to move outward. The drop-out contact block 1 then pushes the fuse tube 2 off the fully insulated drop-out fuse body 4 and causes it to fall off. The puncture expansion mechanism 6 and the temperature detector 3 are electrically connected to an external controller through a connecting wire, so that they can be operated and controlled by the external controller.

[0032] The expansion and telescopic mechanism 5 includes a hollow sleeve 51, a T-shaped movable rod 52, a contact spring 53, an air inlet 54, and a connecting end plate 55. The connecting end plate 55 is fixed to the body 4 of the fully insulated drop-out fuse, so that it can be placed stably. The hollow sleeve 51 is installed at the front end of the connecting end plate 55. An air inlet 54 is opened on the inner side of the lower end of the hollow sleeve 51. The gas inside the expansion mechanism 6 can be transported into the hollow sleeve 51 through the air inlet 54. The contact spring 53 is installed at the bottom of the hollow sleeve 51. The T-shaped movable rod 52 is installed at the front end of the contact spring 53 inside the hollow sleeve 51. The T-shaped movable rod 52 can be elastically pulled and supported by the contact spring 53. The input gas can make the T-shaped movable rod 52 move outward. A drop-out contact block 1 is installed at the front end of the T-shaped movable rod 52. When the T-shaped movable rod 52 moves outward, it can resist the fuse tube 2 and fall through the drop-out contact block 1.

[0033] The T-shaped movable rod 52 is sleeved in the middle of the hollow sleeve 51, which allows for positioning and movement.

[0034] The extension length of the T-shaped movable rod 52 is greater than the distance between the fuse tube 2 and the body 4 of the fully insulated drop-out fuse, so as to resist the drop.

[0035] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, the puncture expansion mechanism 6 includes an electric telescopic cylinder 61, an airbag sleeve 62, an air-storage airbag 63, a puncture needle 64, and a first coupling 65. The airbag sleeve 62 is fixedly connected to the expansion expansion mechanism 5, thus allowing for stable placement. The lower end of the airbag sleeve 62 is equipped with the electric telescopic cylinder 61, and the telescopic rod end of the electric telescopic cylinder 61 is fixedly connected to the first coupling 65. The upper end of the first coupling 65 is fixedly connected to the puncture needle 64. When the telescopic rod of the electric telescopic cylinder 61 extends, it can drive the first coupling 65 to move. When the first coupling 65 moves, it drives the puncture needle 64 to move. Above the puncture needle 64, an air-storage airbag 63 is installed on the airbag sleeve 62. The puncture needle 64 can puncture the air-storage airbag 63, and the gas in the air-storage airbag 63 diffuses into the expansion expansion mechanism 5, causing the expansion expansion mechanism 5 to expand and extend.

[0036] Reference Figure 1 , Figure 3 and Figure 4In a preferred embodiment, the temperature detector 3 includes an infrared temperature sensor 31, a fixing collar 32, and a power connection line 33. The fixing collar 32 is fixed to the fuse tube 2 for stable placement. The infrared temperature sensor 31 is installed on the inner side of the fixing collar 32 and can emit infrared rays for temperature detection. The outer end of the infrared temperature sensor 31 is electrically connected to the power connection line 33, which is electrically connected to an external controller. Thus, the data detected by the infrared temperature sensor 31 can be transmitted to the external controller through the power connection line 33, and then the external controller can control accordingly.

[0037] Reference Figure 1 and Figure 3 In a preferred embodiment, the drop contact block 1 is made of ceramic material, thereby effectively insulating against contact.

[0038] Reference Figure 1 and Figure 3 In a preferred embodiment, the expansion and contraction mechanism 5 and the puncture expansion mechanism 6 are fixedly connected by welding, and the connection is through, so that they can be installed and fixed, and the through connection facilitates gas transportation.

[0039] Working principle: During use, the temperature detector 3 can detect the temperature of the fuse body 41. When the temperature of the fuse body 41 is too high, it will be detected by the temperature detector 3 and transmitted to the external controller. The external controller will then control the puncture expansion mechanism 6 to puncture the internal gas storage bag 63. When the puncture expansion mechanism 6 is punctured, gas is generated. The gas then causes the expansion and contraction mechanism 5 to expand and contract, which in turn drives the drop-off contact block 1 to move outward. The drop-off contact block 1 then causes the fuse tube 2 to fall off the fully insulated drop-out fuse body 4, thus making it safer when disconnecting.

[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. An intelligent fully insulated drop-out fuse, comprising a fuse tube (2) and a fully insulated drop-out fuse body (4), wherein the fuse tube (2) is installed and connected to the inner front end of the fully insulated drop-out fuse body (4), characterized in that, The fuse tube (2) has a fuse body (41) on the inside of the fully insulated drop-out fuse body (4). A temperature detector (3) is provided on the periphery of the fuse tube (2). An expansion and telescopic mechanism (5) is provided between the fuse tube (2) and the fully insulated drop-out fuse body (4). A puncture expansion mechanism (6) is provided at the lower end of the expansion and telescopic mechanism (5). A drop-out contact block (1) is provided at the front end of the expansion and telescopic mechanism (5). The puncture expansion mechanism (6) and the temperature detector (3) are electrically connected to an external controller through a connecting line. The expansion and telescopic mechanism (5) includes a hollow sleeve (51), a T-shaped movable rod (52), an abutment spring (53), an air inlet (54), and a connecting end plate (55). The front end of the connecting end plate (55) is provided with a hollow sleeve (51). The lower end of the hollow sleeve (51) is provided with an air inlet (54). The bottom end of the hollow sleeve (51) is provided with an abutment spring (53). The front end of the abutment spring (53) is located inside the hollow sleeve (51) and is provided with a T-shaped movable rod (52). The front end of the T-shaped movable rod (52) is provided with a drop-off abutment block (1). The connecting end plate (55) is fixed to the body (4) of the fully insulated drop-out fuse.

2. The intelligent fully insulated drop-out fuse according to claim 1, characterized in that, The puncture expansion mechanism (6) includes an electric telescopic cylinder (61), an airbag sleeve (62), an air storage airbag (63), a puncture needle (64), and a first coupling (65). The lower end of the airbag sleeve (62) is provided with an electric telescopic cylinder (61), the telescopic rod end of the electric telescopic cylinder (61) is provided with a first coupling (65), the upper end of the first coupling (65) is provided with a puncture needle (64), and an air storage airbag (63) is provided above the puncture needle (64) on the airbag sleeve (62). The airbag sleeve (62) is fixed to the expansion telescopic mechanism (5).

3. The intelligent fully insulated drop-out fuse according to claim 1, characterized in that, The temperature detector (3) includes an infrared temperature sensor (31), a fixing collar (32) and a power connection line (33). The infrared temperature sensor (31) is provided on the inner side of the fixing collar (32), and the power connection line (33) is provided on the outer end of the infrared temperature sensor (31). The power connection line (33) is electrically connected to an external controller.

4. The intelligent fully insulated drop-out fuse according to claim 1, characterized in that, The drop contact block (1) is made of ceramic material.

5. The intelligent fully insulated drop-out fuse according to claim 1, characterized in that, The T-shaped movable rod (52) is sleeved in the middle of the interior of the hollow sleeve (51).

6. The intelligent fully insulated drop-out fuse according to claim 1, characterized in that, The expansion and contraction mechanism (5) and the puncture expansion mechanism (6) are fixedly connected by welding, and the connection is through.

7. The intelligent fully insulated drop-out fuse according to claim 1, characterized in that, The elongation of the T-shaped movable rod (52) is greater than the distance between the fuse tube (2) and the body (4) of the fully insulated drop-out fuse.

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