CN219303597U

CN219303597U - Outdoor high-voltage drop-out fuse

Info

Publication number: CN219303597U
Application number: CN202223468901.2U
Authority: CN
Inventors: 孙涛; 赵晶
Original assignee: Shanghai Electric Porcelain Works Co ltd
Current assignee: Shanghai Electric Porcelain Works Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-07-04
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses an outdoor high-voltage drop-out fuse which comprises an insulator, a fusion tube and a detection assembly, wherein clamping pieces are arranged on the upper side and the lower side of the insulator, the fusion tube is arranged on one side of the insulator and is fixed by the two clamping pieces on the upper side and the lower side of the insulator, and a fuse wire is arranged in a cavity of the fusion tube; the detection assembly is arranged on a backing plate at one side of the upper end of the insulator and is provided with a detection column, a shell, a conductive contact, a conductive plate, an insulating plate, a power supply and an alarm, wherein a partition plate is arranged in the middle of the inner side of a cavity of the shell, and the upper end of the partition plate is provided with the conductive contact, the insulating plate and the conductive plate; the detection column is provided with a connecting head end and a column end which are connected up and down, wherein the connecting head end can be fixed on one side of the clamping piece through a screw, and the column end penetrates through an opening at the bottom side of the shell and stretches into the shell. The fire alarm device has longer service life, can timely monitor fire and alarm, and is more convenient to use.

Description

Outdoor high-voltage drop-out fuse

Technical Field

The utility model relates to the field of fuses, in particular to an outdoor high-voltage drop-out fuse.

Background

The high voltage drop-out fuse consists of an insulating support, a moving contact, a fixed contact and a fuse tube. The fixed contacts are arranged at two ends of the insulating support, and the fuse tube consists of an arc extinction tube at the inner layer and a phenolic paper tube or epoxy glass fiber cloth tube at the outer layer; however, when the existing high-voltage drop-out fuse is disconnected, obvious electric sparks are generated, the electric sparks are splashed around, fire disasters are easy to occur, maintenance staff does not know where the faults occur, and the faults need to be searched for, so that the time delay is relatively prolonged.

In view of this, some manufacturers develop a monitoring device/system for a drop-out fuse, such as CN210805688U, which is a drop-out fuse monitoring device, and includes a position sensor, an alarm module and a power module; the position sensor is arranged on the drop-out fuse, and comprises a mercury switch and a relay, wherein a coil terminal of the relay is connected with the power module, and the mercury switch is arranged between the relay and the power module; when the drop-out fuse is at a normal position, the mercury switch is not conducted, and when the drop-out fuse is at a drop-out position, the mercury switch is conducted; the alarm module is connected with the position sensor and used for sending a signal to a remote monitoring station when the mercury switch is turned on; the power module is connected with the alarm module and the position sensor and is used for supplying power to the alarm module and the position sensor. The utility model ensures that the maintenance personnel can monitor the drop-out fuse in real time, thereby shortening the maintenance time.

However, the above-mentioned device/system needs to use more sensor components, and in actual use, compared with mechanical structure, the device/system has more consumables and more expensive maintenance, so there is a need for an outdoor high-voltage drop-out fuse with low cost and no maintenance.

Disclosure of Invention

The utility model aims to provide an outdoor high-voltage drop-out fuse so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the outdoor high-voltage drop-out fuse comprises an insulator, a fusion tube and a detection assembly, wherein clamping pieces are arranged on the upper side and the lower side of the insulator, the fusion tube is arranged on one side of the insulator and is fixed by the two clamping pieces on the upper side and the lower side of the insulator, and a fuse wire is arranged in a cavity of the fusion tube; the detection assembly is arranged on a backing plate at one side of the upper end of the insulator and is provided with a detection column, a shell, a conductive contact, a conductive plate, an insulating plate, a power supply and an alarm, wherein a partition plate is arranged in the middle of the inner side of a cavity of the shell, and the upper end of the partition plate is provided with the conductive contact, the insulating plate and the conductive plate; the detection column is provided with a connecting head end and a column end which are connected up and down, wherein the connecting head end can be fixed on one side of the clamping piece through a screw, and the column end penetrates through an opening at the bottom side of the shell and stretches into the shell.

Preferably, the insulating plate and the conducting plate are connected up and down, and the conducting contact is arranged on two sides of the conducting plate and the insulating plate.

Preferably, the tail end of the conductive contact is connected with a wire, and the wire is connected with a power supply and an alarm.

Preferably, the cylinder end is sleeved with a spring and a limiting block, the front end of the cylinder end penetrates through the partition plate and is connected with the insulating plate, and the cylinder end is limited by the connecting head end and enables the insulating plate to be in contact with the conductive contact.

Preferably, the connecting head end is made of a material which is heated and quickly fused, the connecting head end can be automatically fused when a fusion tube catches fire, and the cylinder end is recovered under the action of a spring, so that the insulating plate is separated from the conductive contact, the conductive plate is in contact conduction with the conductive contact, and the alarm is electrified to alarm.

Compared with the prior art, the utility model has the beneficial effects that:

the detection column is used for monitoring fire occurrence, when the fusion tube catches fire, the detection column is burnt, so that the connecting head end at the bottom end of the detection column is fused, the column end is not limited at the moment and moves upwards under the action of the restoring force of the spring, the conductive plate is in contact conduction with the conductive contact, the alarm is electrified to give an alarm, and the fusion tube of the fuse is monitored in real time by adopting the mode, so that the cost is low, and compared with the scheme of a sensor, the fusion tube has longer service life, can timely monitor the fire and give an alarm, and is more convenient to use.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic view of a partially enlarged structure of fig. 1 according to the present utility model.

In the figure: 1. an insulator; 2. a fusion pipe; 3. a clamping member; 4. a detection column; 401. a connection head; 402. a cylinder end; 5. a housing; 6. a conductive contact; 7. a conductive plate; 8. an insulating plate; 9. a power supply; 10. an alarm.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides a technical solution: the outdoor high-voltage drop-out fuse comprises an insulator 1, a fusion tube 2 and a detection assembly, wherein clamping pieces 3 are arranged on the upper side and the lower side of the insulator 1, the fusion tube 2 is arranged on one side of the insulator 1 and is fixed by the two clamping pieces 3 on the upper side and the lower side of the insulator 1, and a fuse wire is arranged in a cavity of the fusion tube 2; the detection assembly is arranged on a backing plate at one side of the upper end of the insulator 1 and is provided with a detection column 4, a shell 5, a conductive contact 6, a conductive plate 7, an insulating plate 8, a power supply 9 and an alarm 10, wherein a partition plate is arranged in the middle of the inner side of a cavity of the shell 5, and the upper end of the partition plate is provided with the conductive contact 6, the insulating plate 8 and the conductive plate 7; the detecting column 4 has a connecting head 401 and a column end 402, which are connected up and down, wherein the connecting head 401 can be fixed on one side of the clamping member 3 by a screw, and the column end 402 passes through an opening on the bottom side of the housing 5 and extends into the housing 5.

In this embodiment, the insulating plate 8 and the conductive plate 7 are connected up and down, and the conductive contacts 6 are disposed on two sides of the conductive plate 7 and the insulating plate 8.

In this embodiment, the end of the conductive contact 6 is connected with a wire, and the wire is connected with a power supply 9 and an alarm 10.

In this embodiment, the spring and the stopper are sleeved on the cylinder end 402, the front end of the cylinder end 402 passes through the partition plate and is connected with the insulating plate 8, and the cylinder end 402 is limited by the connection head end 401 and makes the insulating plate 8 contact with the conductive contact 6.

In this embodiment, the connection end 401 is made of a material that is quickly melted by heat, and the connection end 401 can be automatically melted when the fusion tube 2 catches fire, and the column end 402 is recovered under the action of a spring, so that the insulating plate 8 is separated from the conductive contact 6, the conductive plate 7 is in contact conduction with the conductive contact 6, and the alarm 10 is electrified to alarm.

In this embodiment, the detection column 4 is used for monitoring fire occurrence, when the fusion tube 2 catches fire, it burns the detection column 4, make the connection head end 401 of detection column 4 bottom fuse, this moment the cylinder end 402 is unrestricted, and move up under the spring restoring force effect, make the conductive plate 7 and the conductive contact 6 contact and switch on, and make alarm 10 switch on and report to the police, adopt this kind of mode real-time supervision fuse's fusion tube 2 to appear the condition of fire, the cost is low, compared with the scheme in the sensor, life is longer, can in time monitor the fire and report to the police, it is more convenient to use.

Although embodiments of the present utility model 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 therein 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 outdoor high-voltage drop-out fuse is characterized by comprising an insulator (1), a fusion tube (2) and a detection assembly, wherein clamping pieces (3) are arranged on the upper side and the lower side of the insulator (1), the fusion tube (2) is arranged on one side of the insulator (1) and is fixed by the two clamping pieces (3) on the upper side and the lower side of the insulator (1), and a fuse wire is arranged in a cavity of the fusion tube (2); the detection assembly is arranged on a backing plate at one side of the upper end of the insulator (1), and is provided with a detection column (4), a shell (5), a conductive contact (6), a conductive plate (7), an insulating plate (8), a power supply (9) and an alarm (10), wherein a partition plate is arranged in the middle of the inner side of a cavity of the shell (5), and the upper end of the partition plate is provided with the conductive contact (6), the insulating plate (8) and the conductive plate (7); the detection column (4) is provided with a connecting head end (401) and a column end (402) which are connected up and down, wherein the connecting head end (401) can be fixed on one side of the clamping piece (3) through screws, and the column end (402) penetrates through an opening at the bottom side of the shell (5) and stretches into the shell (5).

2. The outdoor high voltage drop-out fuse of claim 1, wherein: the insulating board (8) and the conducting board (7) are connected up and down, and the conducting contact (6) is arranged on two sides of the conducting board (7) and the insulating board (8).

3. The outdoor high voltage drop-out fuse of claim 1, wherein: the tail end of the conductive contact (6) is connected with a wire, and the wire is connected with a power supply (9) and an alarm (10).

4. The outdoor high voltage drop-out fuse of claim 1, wherein: the cylinder end (402) is sleeved with a spring and a limiting block, the front end of the cylinder end (402) penetrates through the partition plate and is connected with the insulating plate (8), and the cylinder end (402) is limited by the connecting head end (401) and enables the insulating plate (8) to be in contact with the conductive contact (6).

5. The outdoor high voltage drop-out fuse of claim 1, wherein: the connecting head end (401) is made of a material which is heated and quickly fused, the connecting head end (401) can be automatically fused when the fusion tube (2) catches fire, and the cylinder end (402) is recovered under the action of a spring so as to separate the insulating plate (8) from the conductive contact (6), so that the conductive plate (7) is in contact conduction with the conductive contact (6), and the alarm (10) is electrified for alarming.