CN214795243U

CN214795243U - Transformer power-off protection device

Info

Publication number: CN214795243U
Application number: CN202120812355.6U
Authority: CN
Inventors: 万林武
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-19
Anticipated expiration: 2031-04-20

Abstract

The utility model discloses a transformer power-off protection device, the power distribution box comprises a box body, the positive movable mounting of box has the chamber door, the positive fixed mounting of chamber door has electromagnetic safety lock. This transformer power-off protection device, judge electromagnetism safety lock break-make through the controller, thereby opening and close to the chamber door and carry out preliminary detection, when the chamber door is opened, controller control actuating mechanism drives the disconnection of plug-in strip switch, thereby cut off the power supply to this transformer, avoid maintainer live working and cause the condition emergence of electric shock accident, the rethread sensor detects the chamber door degree of opening and shutting, whether safety grating has the maintainer to detect inside the box, when the inside maintainer that has of box, the chamber door is when closed state, then controller control alarm reports to the police and reminds the maintainer in time to shorten the electromagnetism safety lock, the condition that the maintainer is stranded is closed to the chamber door in avoiding the maintenance process takes place, reach the effect of simple and convenient high-efficient protection.

Description

Transformer power-off protection device

Technical Field

The utility model belongs to the technical field of the transformer, specifically be a transformer power-off protection device.

Background

A Transformer (Transformer) is a device that changes an ac voltage by using the principle of electromagnetic induction, and its main components are a primary coil, a secondary coil, and an iron core (magnetic core), and the Transformer has the main functions of: voltage conversion, current conversion, impedance conversion, isolation and voltage stabilization (magnetic saturation transformer), etc., and can be classified into: the transformer plays an important role in the development of modern industry, and it is assumed that if the current produced from a power plant is directly applied to electrical equipment without being processed by the transformer, the unstable voltage causes huge impact on the electrical equipment and even causes serious damage to the electrical equipment, and the no-load loss belongs to an extremely important attribute of the transformer.

The traditional transformer generally has no power-off protection function, and electric shock accidents are easy to happen due to overhaul and emergencies of workers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer power-off protection device to solve the traditional transformer of prior art and generally not have the power-off protection function, because staff's maintenance and incident take place the problem of electric shock accident easily.

For the purpose of realizing above-mentioned automatic power-off protection function, the utility model provides a following technical scheme: a transformer power-off protection device comprises a box body, wherein a box door is movably arranged on the front side of the box body, an electromagnetic safety lock is fixedly arranged on the front side of the box door, an observation window is fixedly arranged on the front side of the box door, a transformer main body is fixedly arranged at the bottom of the inner wall of the box body, a heat dissipation fan is fixedly arranged at the bottom of the inner wall of the box body, safety gratings are fixedly arranged on the left side and the right side of the inner wall of the box body respectively, a controller is fixedly arranged on the right side of the inner wall of the box body, a knife switch for controlling a power supply circuit of the transformer main body is fixedly arranged on the top of the inner wall of the box body, a driving mechanism is movably arranged on the outer wall of the knife switch on the inner wall of the box body and is electrically connected with the controller, the driving mechanism comprises a first mounting seat, an electric push rod and a second mounting seat, a first mounting seat is fixedly arranged on the inner wall of the box body, the outer wall fixed mounting of knife switch has the second mount pad, first mount pad passes through electric putter and second mount pad swing joint.

Preferably, the number of the box doors is two, and the two box doors are movably connected with the box body through hinge pieces.

Preferably, the observation window is the toughened glass board, the quantity of observation window is six, six two sets of are equallyd divide to the observation window, every group the observation window is equidistance array distribution respectively on every chamber door.

Preferably, the outer wall of the box body is provided with six heat dissipation holes, and the six heat dissipation fans are symmetrically distributed on the front side and the rear side of the transformer main body.

Preferably, the front fixed mounting of box has the sensor, the sensor is infrared correlation sensor, the inner wall top fixed mounting of box has the alarm, the alarm is audible-visual annunciator, the safety grating is located cooling fan's the place ahead, the controller is located the place ahead of safety grating, the wiring end of transformer main part is connected with knife switch's output electricity, the controller passes through the wire and is connected with electromagnetism safety lock, sensor, safety grating and electric putter electricity.

Compared with the prior art, the utility model discloses, possess following beneficial effect:

this transformer power-off protection device, judge electromagnetism safety lock break-make through the controller, thereby opening and closing to the chamber door and carry out preliminary detection, when the chamber door is opened, controller control actuating mechanism drives the disconnection of plug-in strip switch, thereby cut off the power supply to this transformer, avoid maintainer live working and cause the condition emergence of electric shock accident, rethread sensor detects the chamber door degree of opening and shutting, whether safety grating has maintainer to detect inside the box, when inside the box has the maintainer, the chamber door is when closed state, then controller control alarm reports to the police and reminds the maintainer in time to shorten the electromagnetism safety lock, the condition that the maintainer is stranded is closed to the chamber door in avoiding the maintenance process takes place, reach the effect of simple and convenient high-efficient protection, thereby the security performance of this transformer has been improved.

Drawings

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

fig. 2 is a sectional view of the structure of the present invention.

In the figure: the device comprises a box body 1, a box door 2, an electromagnetic safety lock 3, an observation window 4, a sensor 5, a transformer main body 6, a heat radiation fan 7, a safety grating 8, a controller 9, an alarm 10, a knife switch 11, a driving mechanism 12, a first mounting seat 13, an electric push rod 14 and a second mounting seat 15.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-2, a transformer power-off protection device comprises a box body 1, wherein two box doors 2 are movably mounted on the front surface of the box body 1, the two box doors 2 are movably connected with the box body 1 through hinge elements, an electromagnetic safety lock 3 is fixedly mounted on the front surface of each box door 2, an observation window 4 is fixedly mounted on the front surface of each box door 2, the observation windows 4 are made of toughened glass plates, the number of the observation windows 4 is six, the six observation windows 4 are divided into two groups, each group of the observation windows 4 are respectively distributed on each box door 2 in an equidistant array, a transformer main body 6 is fixedly mounted at the bottom of the inner wall of the box body 1, a heat dissipation fan 7 is fixedly mounted at the bottom of the inner wall of the box body 1, heat dissipation holes are formed in the outer wall of the box body 1, the number of the heat dissipation fans 7 is six, the six heat dissipation fans 7 are symmetrically distributed at the front side and the rear side of the transformer main body 6, and safety gratings 8 are fixedly mounted at the left side and the right side of the inner wall of the box body 1, a controller 9 is fixedly installed on the right side of the inner wall of the box body 1, a knife switch 11 for controlling a power supply circuit of the transformer main body 6 is fixedly installed on the top of the inner wall of the box body 1, a driving mechanism 12 is movably installed on the inner wall of the box body 1 and positioned on the outer wall of the knife switch 11, the driving mechanism 12 is electrically connected with the controller 9, the driving mechanism 12 comprises a first installation seat 13, an electric push rod 14 and a second installation seat 15, a first installation seat 13 is fixedly installed on the inner wall of the box body 1, a second installation seat 15 is fixedly installed on the outer wall of the knife switch 11, the first installation seat 13 is movably connected with the second installation seat 15 through the electric push rod 14, a sensor 5 is fixedly installed on the front side of the box body 1, the sensor 5 is an infrared correlation sensor, an alarm 10 is fixedly installed on the top of the inner wall of the box body 1, the alarm 10 is an audible and visual alarm, the safety grating 8 is positioned in front of the heat dissipation fan 7, and the controller 9 is positioned in front of the safety grating 8, the wiring end of the transformer main body 6 is electrically connected with the output end of the knife switch 11, the controller 9 is electrically connected with the electromagnetic safety lock 3, the sensor 5, the safety grating 8 and the electric push rod 14 through wires, the controller 9 judges the on-off state of the electromagnetic safety lock 3 so as to preliminarily detect the opening and closing of the box door 2, when the box door 2 is opened, the controller 9 controls the driving mechanism 12 to drive the knife switch 11 to be disconnected so as to cut off the transformer, the condition that electric shock accidents are caused by the live operation of maintainers is avoided, the opening degree of the box door 2 is detected through the sensor 5, the safety grating 8 detects whether the maintainer is in the box body 1, when the maintainer is in the box body 1 and the box door 2 is in a closed state, the controller 9 controls the alarm 10 to alarm and reminds the maintainer to shorten the electromagnetic safety lock 3 in time, the condition that the maintenance personnel are trapped due to the fact that the box door 2 is closed in the maintenance process is avoided, the effect of simple, convenient and efficient protection is achieved, and therefore the safety performance of the transformer is improved.

The driving mechanism 12 in this embodiment is used not only for the automatic power-off mechanism of the transformer, but also for the manual power-off mechanism for maintenance and repair of the transformer.

In conclusion, the transformer power-off protection device judges the on-off state of the electromagnetic safety lock 3 through the controller 9, so as to preliminarily detect the opening and closing of the box door 2, when the box door 2 is opened, the controller 9 controls the driving mechanism 12 to drive the knife switch 11 to be switched off, so as to power off the transformer, avoid the occurrence of electric shock accidents caused by the live operation of a maintainer, detect the opening degree of the box door 2 through the sensor 5, detect whether the maintainer is in the box body 1 through the safety grating 8, when the maintainer is in the box body 1 and the box door 2 is in a closed state, the controller 9 controls the alarm 10 to give an alarm and remind the maintainer to shorten the electromagnetic safety lock 3 in time, avoid the occurrence of the situation that the maintainer is trapped due to the closing of the box door 2 in the maintenance process, and achieve the effects of simple, convenient and efficient protection, thereby improving the safety performance of the transformer.

Claims

1. The utility model provides a transformer power-off protection device, includes box (1), its characterized in that: the electromagnetic safety lock is characterized in that a box door (2) is movably mounted on the front side of the box body (1), an electromagnetic safety lock (3) is fixedly mounted on the front side of the box door (2), an observation window (4) is fixedly mounted on the front side of the box body (2), a transformer main body (6) is fixedly mounted on the bottom of the inner wall of the box body (1), a cooling fan (7) is fixedly mounted on the bottom of the inner wall of the box body (1), a safety grating (8) is fixedly mounted on the left side and the right side of the inner wall of the box body (1), a controller (9) is fixedly mounted on the right side of the inner wall of the box body (1), a switch (11) for controlling the transformer main body (6) to supply power circuits is fixedly mounted on the top of the inner wall of the box body (1), a driving mechanism (12) is movably mounted on the outer wall of the switch (11), and the driving mechanism (12) is electrically connected with the controller (9), actuating mechanism (12) include first mount pad (13), electric putter (14) and second mount pad (15), the inner wall fixed mounting of box (1) has first mount pad (13), the outer wall fixed mounting of knife switch (11) has second mount pad (15), first mount pad (13) are through electric putter (14) and second mount pad (15) swing joint.

2. A transformer power-off protection device according to claim 1, characterized in that: the number of the box doors (2) is two, and the two box doors (2) are movably connected with the box body (1) through hinge pieces.

3. A transformer power-off protection device according to claim 1, characterized in that: observation window (4) are the toughened glass board, the quantity of observation window (4) is six, six two sets of are equallyd divide in observation window (4), every group observation window (4) are equidistance array distribution respectively on every chamber door (2).

4. A transformer power-off protection device according to claim 1, characterized in that: the radiating holes are formed in the outer wall of the box body (1), the number of the radiating fans (7) is six, and the six radiating fans (7) are symmetrically distributed on the front side and the rear side of the transformer main body (6).

5. A transformer power-off protection device according to claim 1, characterized in that: the front fixed mounting of box (1) has sensor (5), sensor (5) are infrared correlation sensor, the inner wall top fixed mounting of box (1) has alarm (10), alarm (10) are audible-visual annunciator, safety grating (8) are located the place ahead of cooling fan (7), controller (9) are located the place ahead of safety grating (8), the wiring end of transformer main part (6) is connected with the output electricity of plug-in strip switch (11), controller (9) are connected with electromagnetism safety lock (3), sensor (5), safety grating (8) and electric putter (14) electricity through the wire.