CN217086965U

CN217086965U - Bus arc light protection device

Info

Publication number: CN217086965U
Application number: CN202220907401.5U
Authority: CN
Inventors: 毕金桥; 孙琦; 陶森林
Original assignee: Legote Zhidian Iot Technology Chongqing Co ltd
Current assignee: Legote Zhidian Iot Technology Chongqing Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-29
Anticipated expiration: 2032-04-19

Abstract

The utility model belongs to the technical field of power systems, in particular to a bus arc light protection device, which comprises a shell and an arc light protection circuit board, wherein the shell is provided with an operation panel, the shell is provided with two groups of interface structures, and the front end of the shell is provided with a protection mechanism matched with the two groups of interface structures; the protection mechanism comprises a first mounting plate, the first mounting plate is provided with a rotating shaft, the rotating shaft is provided with a handle, the rotating shaft is provided with a protection assembly, the protection assembly comprises a first moving plate, the rotating shaft is provided with two thread sections, the first moving plate is provided with a protection shell, the protection shell is provided with a thread passing groove, the thread passing groove is provided with a rubber strip, and the protection shell is provided with a stabilizing component; the interface structure is protected by mutual butt joint of the two protective shells, the aging time of the interface structure is effectively prolonged, the service life is prolonged, and the wiring harness is spliced.

Description

Bus arc light protection device

Technical Field

The utility model belongs to the technical field of electric power system, concretely relates to generating line arc light protection device.

Background

In the short-circuit fault of the medium-voltage bus and the low-voltage bus, key equipment and personnel injury are mainly caused by arc light, however, most of the medium-voltage and low-voltage buses in China are not provided with rapid bus protection, and only simple arc extinction devices and transformer backup protection are adopted. The protection is low in intellectualization and low in action speed, the fault removal time is usually prolonged, so that the damage degree of equipment is further expanded, even a vicious accident of 'fire burning and operation', the transformer is impacted to run once, the safe running of the whole power grid is influenced, and an arc light protection system is needed to improve the running safety of the power grid; the arc light protection system is composed of a main unit, a current unit, a sensor unit, an arc sensor and a connecting cable. The arc light sensor can be placed at any position of the switch device (generally installed in a bus chamber to detect bus faults), the function of protecting subareas can be realized according to the actual physical position of the arc light sensor, the position of the fault occurrence is displayed on the arc light control unit, the power failure processing time can be reduced by the function, the power supply can be quickly recovered, all units of a common arc light protection system are integrated in the shell, the interface extends out of the shell to facilitate wiring, but the interface position of the traditional arc light protection system is lack of protection and is easy to age due to environmental influence.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: aim at providing a generating line electric arc light protection device, protect the interface structure through two mutual butts of protecting crust, prolong the ageing time of interface structure effectively, improve life, when the pencil of pegging graft, only need rotate the handle just can drive two protecting crust in two sets of protective assembly simultaneously and keep away from each other, make things convenient for the staff to insert the line, the contrarotation handle makes two protecting crust be close to each other, protect the interface structure, prevent that the interface from receiving external damage, the operation of being convenient for.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

a bus arc light protection device comprises a shell and an arc light protection circuit board arranged in the shell, wherein an operation panel is arranged at the rear end of the shell, two groups of interface structures are arranged at the front end of the shell, and a protection mechanism matched with the two groups of interface structures is arranged at the front end of the shell;

the protection mechanism comprises two first mounting plates which are respectively fixedly arranged at the upper sides of the left and right ends of the shell, a rotating shaft is rotatably connected between the two first mounting plates, the left end of the rotating shaft penetrates through the first mounting plates and is connected with a handle, the rotating shaft is provided with two groups of protection components corresponding to the positions of the two groups of interface structures, the protection components comprise two first moving plates, the rotating shaft is provided with two thread sections which are respectively positioned at the left side and the right side of the interface structure, the thread turning directions of the two thread sections are opposite, the two first moving plates are respectively in threaded connection with the two thread sections, the two first movable plates are fixedly connected with protecting shells, the wire passing grooves are formed in the opposite sides of the protecting shells, rubber strips are installed in the wire passing grooves, and the protecting shells are provided with stabilizing components.

The stabilizing member comprises two second mounting plates, the two second mounting plates are fixedly arranged at the lower sides of the left end and the right end of the shell respectively, a sliding rod is fixedly connected between the mounting plates, four second moving plates are slidably connected with the sliding rod, and the four second moving plates are connected with the lower sides of the protective shells respectively.

The casing comprises a U-shaped seat and two L-shaped plates, two the L-shaped plate all with the U-shaped seat hinge, and two the mutual butt of the horizontal one end of L-shaped plate, two be equipped with fixed subassembly between the L-shaped plate.

The fixing assembly comprises two fixing plates, the two fixing plates are fixedly arranged at the upper ends of the two L-shaped plates respectively, and the two fixing plates are fixed through a plurality of bolts.

The casing lower extreme left and right sides all is connected with the mounting panel, two the mounting panel all is equipped with a plurality of mounting holes.

The utility model discloses a mutual butt of two protecting crust protects interface structure, prolongs interface structure's aging time effectively, improves life, when the wiring harness of pegging graft, only needs to rotate the handle and just can drive two protecting crust in two sets of protective assembly simultaneously and keep away from each other, makes things convenient for the staff to insert the line, and the reverse rotation handle makes two protecting crust be close to each other, protects interface structure, prevents that the interface from receiving external damage, the operation of being convenient for.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

fig. 1 is a first schematic structural diagram of a first bus arc light protection device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a first bus arc light protection device according to an embodiment of the present invention;

FIG. 3 is an enlarged view of the structure at A;

fig. 4 is a schematic structural diagram three of a first embodiment of a bus arc light protection device of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the bus arc light protection device of the present invention.

The device comprises a shell 1, a U-shaped seat 101, an L-shaped plate 102, a fixing plate 103, an operation panel 11, an interface structure 12, a first mounting plate 2, a rotating shaft 21, a threaded section 211, a handle 22, a first moving plate 23, a protective shell 24, a wire passing groove 25, a rubber strip 251, a second mounting plate 3, a sliding rod 3, a second moving plate 32, a mounting plate 4 and a mounting hole 41.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

The first embodiment is as follows:

as shown in fig. 1-4, the bus arc light protection device of the present invention comprises a casing 1 and an arc light protection circuit board installed inside the casing 1, wherein an operation panel 11 is installed at the rear end of the casing 1, two sets of interface structures 12 are installed at the front end of the casing 1, and a protection mechanism matched with the two sets of interface structures 12 is installed at the front end of the casing 1;

protection machanism includes two first mounting panels 2, both ends upside about casing 1 is fixed respectively to two first mounting panels 2, and rotate between two first mounting panels 2 and be connected with pivot 21, pivot 21 left end runs through first mounting panel 2 and is connected with handle 22, pivot 21 is equipped with two sets of protective assembly that correspond with two sets of interface structure 12 positions, protective assembly includes two first movable plates 23, pivot 21 is equipped with two screw thread sections 211, two screw thread sections 211 are located interface structure 12's the left and right sides respectively, and the screw thread of two screw thread sections 211 revolves to opposite, two first movable plates 23 respectively with two screw thread sections 211 threaded connection, two equal fixedly connected with protecting crust 24 of first movable plate 23, two opposite sides of protecting crust 24 have all seted up line groove 25, cross and install rubber strip 251 in the line groove 25, protecting crust 24 is equipped with stabilizing element.

The arc light protection circuit board is integrated with a master control protection unit, an arc light sensor interface, a zero sequence sensor interface, a relay and a circuit breaker, the master control protection unit outputs a control signal to the relay to control the on-off of the circuit breaker by acquiring signals of the arc light sensor and the zero sequence sensor, the arc light sensor interface is connected with the arc light sensor in the power grid to detect whether arc light exists in the power grid, the zero sequence sensor interface is connected with the zero sequence sensor in the power grid to detect whether over-current phenomenon exists in the power grid, and the signals for acquiring arc light detection and over-current detection exceed a safety threshold value, if the signals exceed the safety threshold value, the signals for circuit breaker open circuit are output through the relay, if the signals do not exceed the safety threshold value, signals are not output to the relay, and the effect of quick protection is realized through the mode;

in an initial state, the two protective shells 24 of the same group of interface structure 12 are mutually abutted, the rubber strip 251 can fill the wire passing groove 25 in a stretched state, that is, when no wire harness is inserted into the interface structure 12, the rubber strip 251 can completely fill the wire passing groove 25, so that impurities such as external dust and the like are prevented from entering the interface structure 12 through the wire passing groove 25, the structure can be protected, the aging time of the interface structure is effectively prolonged, and the service life is prolonged; when the wiring harnesses are required to be inserted, a worker only needs to rotate the handle 22 to drive the rotating shaft 21 to rotate, because the two first moving plates 23 in the same group of protection assemblies are respectively in threaded connection with the threaded sections 211 with opposite thread turning directions, when the rotating shaft 21 rotates, the two first moving plates 23 in the same group of protection assemblies are driven to move back and forth, the two first moving plates 23 drive the two protection shells 24 to be away from each other, so that the interface structure 12 is exposed to the outside, the worker only needs to rotate the handle 22 to simultaneously expose the two interface structures 12, the worker can conveniently insert the wiring harnesses on the interface structure 12, after the wiring harnesses are inserted on the interface structure 12, the worker only needs to reversely rotate the handle 22 to drive the rotating shaft 21 to reversely rotate, so that the two first moving plates 23 in the same group of protection assemblies move relatively, the two first moving plates 23 drive the two protective shells 24 to approach each other until the two first moving plates 23 abut against each other, and the wire harness contacts the rubber strip 251 in the wire passing groove 25, so that the rubber strip 251 is deformed, the rubber strip 251 at a position where the wire harness is not inserted cannot be deformed, and the wire passing groove 25 can be shielded, so that the interface structure 12 can be protected, and the interface is prevented from being damaged by the outside;

The stabilizing component comprises two second mounting plates 3, the two second mounting plates 3 are respectively and fixedly arranged at the lower sides of the left end and the right end of the shell 1, a sliding rod 31 is fixedly connected between the two mounting plates 3, the sliding rod 31 is in sliding connection with four second moving plates 32, and the four second moving plates 32 are respectively connected with the lower sides of the four protective shells 24; therefore, the second moving plate 32 connected with the lower end of the protective shell 24 is in sliding connection with the sliding rod 31, so that the protective shell 24 can be limited when the protective shell 24 moves, the protective shell 24 can only move left and right, and the protective shell 24 is more stable when moving.

Example two:

as shown in fig. 5, as an improvement of the previous embodiment, the housing 1 is composed of a U-shaped seat 101 and two L-shaped plates 102, the two L-shaped plates 102 are both hinged to the U-shaped seat 101, horizontal ends of the two L-shaped plates 102 are abutted against each other, and a fixing assembly is arranged between the two L-shaped plates 102; the fixing assembly comprises two fixing plates 103, the two fixing plates 103 are respectively fixedly arranged at the upper ends of the two L-shaped plates 102, and the two fixing plates 103 are fixed through a plurality of bolts;

arc light protection circuit board is installed in U-shaped seat 101, under the initial condition, two L shaped plate 102 level one end butt each other, and two L shaped plate 102 level tip are equipped with sealed the pad, can increase the leakproofness between two L shaped plate 102, fix through fixed subassembly between two L shaped plate 102, carry out fixed connection through a plurality of bolts between two fixed plates 103 promptly, when the arc light protection circuit board of casing 1 inside needs overhaul, the staff only need twist a plurality of bolts, make between two fixed plates 103 cancel fixed, thereby two L shaped plate 102 outwards rotate along the pin joint, even make two L shaped plate 102 expand, the staff of being convenient for overhauls or changes the arc light protection circuit board.

The left side and the right side of the lower end of the shell 1 are both connected with mounting plates 4, and the two mounting plates 4 are both provided with a plurality of mounting holes 41; in this way, the housing 1 can be fixed through the mounting holes 41 on the mounting plate 4, which facilitates the fixed mounting of the housing 1.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the claims of the present invention.

Claims

1. The utility model provides a generating line arc light protection device, includes the casing and installs the arc light protection circuit board in the casing inside, operating panel, its characterized in that are installed to the casing rear end: the front end of the shell is provided with two groups of interface structures, and the front end of the shell is provided with a protection mechanism matched with the two groups of interface structures;

2. The bus arc light protection device of claim 1, wherein: the stabilizing member comprises two second mounting plates, the two second mounting plates are fixedly arranged at the lower sides of the left end and the right end of the shell respectively, a sliding rod is fixedly connected between the mounting plates, four second moving plates are slidably connected with the sliding rod, and the four second moving plates are connected with the lower sides of the protective shells respectively.

3. The bus arc light protection device of claim 1, wherein: the casing comprises a U-shaped seat and two L-shaped plates, two the L-shaped plate all with the U-shaped seat hinge, and two the mutual butt of the horizontal one end of L-shaped plate, two be equipped with fixed subassembly between the L-shaped plate.

4. The bus arc light protection device of claim 3, wherein: the fixing assembly comprises two fixing plates, the two fixing plates are fixedly arranged at the upper ends of the two L-shaped plates respectively, and the two fixing plates are fixed through a plurality of bolts.

5. The bus arc light protection device of claim 1, wherein: the casing lower extreme left and right sides all is connected with the mounting panel, two the mounting panel all is equipped with a plurality of mounting holes.