CN215771054U

CN215771054U - Drop-out fuse

Info

Publication number: CN215771054U
Application number: CN202121441751.9U
Authority: CN
Inventors: 沈凯; 孙勇; 刘越
Original assignee: Nanjing Ronggang Kaikai Electric Co ltd
Current assignee: Nanjing Taichuan Electric Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-02-08
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a drop-out fuse, which relates to the field of fuses and comprises a high-voltage insulator porcelain piece, wherein two ends of the high-voltage insulator porcelain piece are respectively and fixedly connected with an arc extinguishing device and a communication and detection device, one end of the arc extinguishing device, which is far away from the high-voltage insulator porcelain piece, is fixedly connected with a connecting plate, a moving plate is arranged below the connecting plate, a cutting device is arranged between the connecting plate and the moving plate, the lower surface of the moving plate is fixedly connected with a dropping device, and the bottom end of the dropping device is rotatably connected with the communication and detection device. The drop-out fuse reduces the range of electric sparks scattering when fusing occurs, reduces the hidden danger of fire occurrence and convenient confirmation of fusing occurrence positions.

Description

Drop-out fuse

Technical Field

The utility model relates to the field of fuses, in particular to a drop-out fuse.

Background

The high-voltage drop-out fuse consists of three parts, namely an insulating support, a moving contact, a static contact and a fuse tube. The static contact is arranged at two ends of the insulating support, and the fuse tube consists of an inner arc extinguishing tube and an outer phenolic paper tube or epoxy glass fiber cloth tube;

however, when the existing high-voltage drop-out fuse is cut off, obvious electric sparks are generated and splashed around, a fire disaster is easily caused, and when the circuit is broken due to the fact that the high-voltage drop-out fuse is fused, a signal transmission device is not arranged, maintenance personnel do not know where a fault occurs, time is needed for searching, and time is delayed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a drop-out fuse, which solves the problems that obvious electric sparks are generated when the existing high-voltage drop-out fuse is disconnected, the electric sparks splash around and are easy to cause fire, and when a circuit is disconnected due to the fact that the high-voltage drop-out fuse is fused, a signal transmission device is not arranged, a maintenance worker does not know where a fault is generated, time is needed for searching, and time is relatively delayed.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: including high-voltage insulator porcelain, the both ends difference fixedly connected with arc control device and communication and detection device of high-voltage insulator porcelain, the one end fixedly connected with connecting plate of high-voltage insulator porcelain is kept away from to arc control device, the below of connecting plate is provided with the movable plate, be provided with cutting device between connecting plate, the movable plate, the lower fixed surface of movable plate is connected with the device that drops, the bottom and the communication and the detection device rotation of the device that drops are connected.

Preferably, an input terminal and an output terminal are respectively arranged between the high-voltage insulator porcelain piece and the arc extinguishing device and on the lower surface of the communication and detection device, and the input terminal and the output terminal are both made of L-shaped steel.

Preferably, the cutting device comprises two connecting rods, wherein one ends of the connecting rods, which are far away from each other, penetrate through the connecting plate and the moving plate respectively, one ends of the connecting rods, which penetrate through the connecting plate and the moving plate, are fixedly connected with baffles, and the other ends of the connecting rods, which are close to each other, are fixedly connected with fuses.

Preferably, one end of the communication and detection device is electrically connected with a conductive plate, one side of the conductive plate is provided with a conductive groove, one side of the falling device is electrically connected with a power-on plate, and one end of the power-on plate extends into the conductive groove and is in close contact with the conductive groove.

Preferably, a spring is sleeved on the periphery of the cutting device, two ends of the spring are respectively and fixedly connected with the connecting plate and the moving plate, and the spring is made of insulating metal.

Preferably, the lower surface of the moving plate is fixedly connected with a boss, the top end of the dropping device is fixedly connected with a conductive rod, and the boss extends into the conductive rod and is in threaded connection with the conductive rod.

Preferably, the communication and detection device's one end fixedly connected with support, the bottom fixedly connected with connecting block of device that drops, the one end of connecting block extends into in the support and is connected rather than rotating through the pivot.

(III) advantageous effects

The utility model provides a drop-out fuse. The method has the following beneficial effects:

(1) this drop out fuse is provided with the mating reaction of fixed plate, movable plate respectively through cutting device's both ends for when cutting device takes place the fusing, fixed plate, movable plate can block the electric spark that produces, avoid it to scatter on a large scale, have reduced the scope that the electric spark scatters when fusing takes place, have reduced the hidden danger of taking place the conflagration.

(2) This drop out fuse through the mating reaction that is provided with communication and detection device for can detect the circuit, communication and detection device give information terminal with signal transmission again, have realized that the fusing takes place the convenient affirmation of position.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a high voltage insulator terminal of the present invention;

FIG. 3 is an exploded view of the connection structure of the arc extinguishing device and the dropping device according to the present invention;

FIG. 4 is a schematic view of the cutting apparatus of the present invention;

fig. 5 is a schematic view of a connection structure of the communication and detection device and the falling device according to the present invention.

In the figure: 1. a high voltage insulator porcelain; 2. an arc extinguishing device; 21. a connecting plate; 22. a spring; 23. moving the plate; 24. a boss; 3. a communication and detection device; 31. a support; 32. a conductive plate; 321. a conductive slot; 4. a dropping device; 41. a conductive rod; 42. connecting blocks; 43. a power-on plate; 5. l-shaped steel; 6. a cutting device; 61. a connecting rod; 62. a fuse; 63. and a baffle plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the high-voltage insulator porcelain comprises a high-voltage insulator porcelain 1, the high-voltage insulator porcelain 1 is a ceramic part and is the prior art, two ends of the high-voltage insulator porcelain 1 are respectively and fixedly connected with an arc extinguishing device 2 and a communication and detection device 3, the arc extinguishing device 2 and the communication and detection device 3 are the prior art, the arc extinguishing device 2 limits electric sparks generated when fusing occurs, the communication and detection device 3 detects circuit breaking information and transmits position information to a terminal, one end of the arc extinguishing device 2, which is far away from the high-voltage insulator porcelain 1, is fixedly connected with a connecting plate 21, a movable plate 23 is arranged below the connecting plate 21, the connecting plate 21 is matched with the movable plate 23 to limit and block the electric sparks generated when fusing to avoid large-scale scattering of the electric sparks, a cutting device 6 is arranged between the connecting plate 21 and the movable plate 23, and a dropping device 4 is fixedly connected to the lower surface of the movable plate 23, the cutoff device 6 fuses to disconnect the arc extinguishing device 2 from the dropping device 4, thereby breaking the circuit, and the bottom end of the dropping device 4 is rotatably connected with the communication and detection device 3 to prevent the dropping device 4 from directly dropping to the ground.

An input terminal and an output terminal are respectively arranged between the high-voltage insulator porcelain piece 1 and the arc extinguishing device 2 and on the lower surface of the communication and detection device 3, the input terminal and the output terminal are both L-shaped steel 5, and a circuit is respectively connected with the input terminal and the output terminal.

Cutting device 6 includes two connecting rods 61, and the one end that two connecting rods 61 kept away from each other runs through connecting plate 21, movable plate 23 respectively, and connecting rod 61 runs through the equal fixedly connected with baffle 63 of one end of connecting plate 21, movable plate 23, and the one end fixedly connected with fuse 62 that two connecting rods 61 are close to each other, and circuit voltage is too big or instantaneous current is too big, and fuse 62 fuses for two connecting rods 61 disconnection.

One end electricity of communication and detection device 3 is connected with current conducting plate 32, and electrically conductive groove 321 has been seted up to one side of current conducting plate 32, and one side electricity of device 4 that drops is connected with circular telegram board 43, and the one end of circular telegram board 43 extends into in electrically conductive groove 321 and rather than in close contact with, and the output terminal on communication and the detection device 3 passes through current conducting plate 32, circular telegram board 43 cooperation and drops the device 4 electricity and be connected, and drop device 4 drops, and current conducting plate 32 breaks away from circular telegram board 43 for the disconnection.

The spring 22 is sleeved on the periphery of the cutting device 6, two ends of the spring 22 are respectively and fixedly connected with the connecting plate 21 and the moving plate 23, the spring 22 is made of insulating metal, and the moving plate 23 is driven to be away from the connecting plate 21 when the spring 22 is in a normal state.

The lower surface of the moving plate 23 is fixedly connected with a boss 24, the top end of the dropping device 4 is fixedly connected with a conductive rod 41, and the boss 24 extends into the conductive rod 41 and is in threaded connection with the conductive rod, so that the cutting device 6 can be replaced conveniently.

Communication and detection device 3's one end fixedly connected with support 31, the bottom fixedly connected with connecting block 42 of device 4 that drops, the one end of connecting block 42 extends into in support 31 and is connected rather than rotating through the pivot.

When fusing, fuse 62 breaks, and spring 22 resets, drives movable plate 23 and keeps away from connecting plate 21, and device 4 that drops rotates on communication and detection device 3 under the action of gravity for current-conducting plate 32 breaks away from circular telegram board 43, and when fusing takes place, communication and detection device 3 detect the circuit earlier, after detecting the circuit disconnection, give the terminal with information transmission.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides a drop out fuse, includes high-voltage insulator porcelain spare (1), its characterized in that: two ends of the high-voltage insulator porcelain piece (1) are respectively and fixedly connected with an arc extinguishing device (2) and a communication and detection device (3);

one end of the arc extinguishing device (2) far away from the high-voltage insulator porcelain piece (1) is fixedly connected with a connecting plate (21);

a moving plate (23) is arranged below the connecting plate (21), and a cutting device (6) is arranged between the connecting plate (21) and the moving plate (23);

the lower surface of the moving plate (23) is fixedly connected with a dropping device (4);

the bottom end of the falling device (4) is rotatably connected with the communication and detection device (3).

2. A drop out fuse as claimed in claim 1, wherein: the low-voltage insulator is characterized in that an input terminal and an output terminal are respectively arranged between the high-voltage insulator porcelain piece (1) and the arc extinguishing device (2) and on the lower surface of the communication and detection device (3), and the input terminal and the output terminal are both L-shaped steel (5).

3. A drop out fuse as claimed in claim 1, wherein: cutting device (6) include two connecting rods (61), two the one end that connecting rod (61) kept away from each other runs through connecting plate (21), movable plate (23) respectively, the one end that connecting rod (61) runs through connecting plate (21), movable plate (23) is fixedly connected with baffle (63), two the one end fixedly connected with fuse (62) that connecting rod (61) are close to each other.

4. A drop out fuse as claimed in claim 1, wherein: one end electricity of communication and detection device (3) is connected with current-conducting plate (32), current-conducting groove (321) have been seted up to one side of current-conducting plate (32), one side electricity that drops device (4) is connected with circular telegram board (43), the one end of circular telegram board (43) extends into in current-conducting groove (321) and rather than in close contact with.

5. A drop out fuse as claimed in claim 1, wherein: the spring (22) is sleeved on the periphery of the cutting device (6), two ends of the spring (22) are fixedly connected with the connecting plate (21) and the moving plate (23) respectively, and the spring (22) is made of insulating metal.

6. A drop out fuse as claimed in claim 1, wherein: the lower surface of the moving plate (23) is fixedly connected with a boss (24), the top end of the dropping device (4) is fixedly connected with a conductive rod (41), and the boss (24) extends into the conductive rod (41) and is in threaded connection with the conductive rod.

7. A drop out fuse as claimed in claim 1, wherein: communication and detection device (3) one end fixedly connected with support (31), the bottom fixedly connected with connecting block (42) of device (4) that drops, the one end of connecting block (42) extends into in support (31) and is connected rather than rotating through the pivot.