CN112133607B

CN112133607B - A quick cooling protection mechanism behind circuit breaker short circuit for in intelligent manufacturing

Info

Publication number: CN112133607B
Application number: CN202011026842.6A
Authority: CN
Inventors: 刘雪
Original assignee: Yangzhou Jiekong Automation Equipment Co ltd
Current assignee: Yangzhou Jiekong automation equipment Co.,Ltd.
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-07-06
Anticipated expiration: 2040-09-25
Also published as: CN112133607A

Abstract

The invention discloses a circuit breaker short-circuit post-rapid cooling protection mechanism used in intelligent manufacturing, which comprises a shell, wherein an inner cavity is arranged in the shell, an inflatable air bag is fixedly connected to the top of the shell, a spring tube extending to the inner cavity is fixedly connected to the bottom of the inflatable air bag, a piston plate is fixedly connected to the bottom of the spring tube, a connecting hole is formed in the right wall of the shell, a storage cavity is formed in the left wall of the shell, and a movable groove is formed in the bottom of the storage cavity. This a circuit breaker short circuit back rapid cooling protection mechanism for in intelligent manufacturing, through filling transformer oil in the circuit breaker is inside, the inside thermal giving off of circuit breaker of so accelerating, the inside components and parts of protection still play the effect of isolated dust lubrication mechanical parts simultaneously, can prevent like this that inside mechanical parts from leading to the transmission card shell because of dust or wearing and tearing to unable timely cutting circuit causes the loss.

Description

A quick cooling protection mechanism behind circuit breaker short circuit for in intelligent manufacturing

Technical Field

The invention relates to the technical field of electrical elements, in particular to a quick cooling protection mechanism used after a short circuit of a circuit breaker in intelligent manufacturing.

Background

The circuit breaker is a basic protection device in a power system, can cut off a circuit in time when the circuit is short-circuited, prevents a short circuit or an electric appliance from being burnt by strong current generated after the short circuit, reduces loss, and is widely applied to intelligent manufacturing, sewage treatment and household circuits.

The circuit breaker is when coming the breaking circuit through the magnetism that powerful electric current produced, and these magnetic coil also can produce a large amount of heats, if not in time give off these heats, can lead to its inside components and parts to damage ageing, especially probably lead to the enamelling on magnetic coil surface to drop, make magnetic coil self short circuit, unable normal use, therefore we have proposed a circuit breaker short circuit back rapid cooling protection mechanism who is arranged in the intelligent manufacturing.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a protection mechanism for quickly cooling a breaker after short circuit in intelligent manufacturing, which has the function of quickly dissipating high temperature into the breaker.

The invention has the following beneficial effects:

1. this a circuit breaker short circuit back rapid cooling protection mechanism for in intelligent manufacturing through filling transformer oil in the circuit breaker is inside, so accelerated giving off of the inside heat of circuit breaker, protected inside components and parts, still play the effect of isolated dust lubrication mechanical parts simultaneously, can prevent like this that inside mechanical parts from leading to the transmission card shell because of dust or wearing and tearing to unable timely circuit interruption causes the loss.

2. This a circuit breaker short circuit back rapid cooling protection mechanism for in intelligent manufacturing, through louvre and airflow hole vertically and horizontally staggered distribution, so increased heat exchange area, can release the most heat in the shortest time, further play the guard action to the circuit breaker, prolonged life

3. This a quick cooling protection mechanism behind circuit breaker short circuit for in intelligent manufacturing, the temperature through utilizing transformer oil comes the opening and shutting of control air current hole, so when needs dispel the heat, the heat dissipation is opened in the air current hole, plays the guard action, and when need not dispel the heat, seals it, prevents that external temperature when lower, and the heat rapid flow rate in the transformer oil becomes excessively thick, influences the internal plant normal operating.

4. This a circuit breaker short circuit back rapid cooling protection mechanism for in intelligent manufacturing, the whole that opens and shuts of card pole and card key is controlled through the slide bar, so the rotation of sealed wheel is controlled to the accessible oil temperature, and when sealed wheel self atress, can't rotate, when can preventing like this to rise wind, the state of sealed wheel is influenced to powerful air current to influence heat dissipation mechanism's normal operating.

5. This a quick cooling protection mechanism behind circuit breaker short circuit for in intelligent manufacturing, through the linker principle, the transformer oil that adheres to the dust when the oil level rises flows in and stores the chamber, and when the oil level descends, this part transformer oil also can not flow, and the dust of following the air in the income inner chamber is to the influence of equipment during so reduction maintenance.

The invention adopts the following technical scheme for realizing the technical purpose: the utility model provides a quick cooling protection mechanism behind circuit breaker short circuit for in intelligent manufacturing, includes the casing, the inside of casing is provided with the inner chamber, the gasbag is aerifyd to the top fixedly connected with of casing, the bottom fixedly connected with of aerifing the gasbag extends to the spring pipe of inner chamber, the bottom fixedly connected with piston plate of spring pipe, the connecting hole has been seted up to the right wall inside of casing.

The oil storage device is characterized in that a storage cavity is formed in the left wall of the shell, a movable groove is formed in the bottom of the storage cavity, an oil discharge port is formed in the bottom of the movable groove, a control piece is movably connected inside the movable groove, and an oil inlet is formed in the right wall of the storage cavity.

The inner cavity is fixedly connected with a heat dissipation plate, the top of the heat dissipation plate is provided with heat dissipation holes, the front of the heat dissipation plate is provided with air flow holes, sealing wheels are movably mounted in the air flow holes and located at the front end and the rear end, and air vents are formed in the outer sides of the sealing wheels.

The bottom of heating panel has seted up the mounting hole, the inside of mounting hole is pegged graft and is had the ratch, the bottom fixedly connected with propelling movement floating block of ratch, the bottom of propelling movement floating block is seted up and is extended to the inside holding tank of ratch, the inside of holding tank is pegged graft and is had the slide bar, the bottom fixedly connected with slip floating block of slide bar, the rotation groove has been seted up to the interior right wall of holding tank, the inside movable mounting who rotates the groove has the rotation wheel, the interior right wall that rotates the groove is pegged graft and is had the kelly.

Preferably, the clamping position of the shell has good sealing performance, transformer oil is filled in the inner cavity, the oil level of the transformer oil is higher than the top surface of the heat dissipation plate, an air valve is arranged at the top of the inflatable air bag, the upper opening and the lower opening of the connecting hole are respectively located at the top and the bottom of the inner cavity, and the piston plate is located between the heat dissipation plate and the opening above the connecting hole.

Preferably, a limiting plate is fixed inside the movable groove, the oil inlet is located in the middle of the storage cavity, a single turnover plate is installed inside the oil discharge hole, the control piece comprises a floating block, a connecting rod and a sealing plate, a distance is kept between the floating block and the inner bottom wall of the storage cavity, and an opening above the oil discharge port is blocked by the sealing plate.

As optimization, the louvre is the infundibulate, and is narrow down wide from top to bottom, and evenly distributed is on the upper and lower surface of heating panel, the air current hole is arranged between the louvre with great ease, guarantees heat exchange area maximize, two one side fixed mounting that the sealing wheel is relative has the transmission shaft that extends to the mounting hole inside.

Preferably, the inner wall of the mounting hole is fixedly connected with a clamping key, a sealing valve is mounted at an opening of the mounting hole, the toothed rod is meshed with the transmission shaft, and the material density of the pushing floating block and the material density of the sliding floating block are the same as the transformer oil density at normal temperature.

Preferably, the contact surface of the sliding rod and the rotating wheel is provided with teeth, the rotating wheel and the clamping rod are fixedly connected with a pull rope, a return spring is arranged between the clamping rod and the teeth rod, and the clamping rod extends to a position between the clamping keys.

In the figure: 1. a housing; 2. an inner cavity; 3. an inflatable air bag; 4. a spring tube; 5. a piston plate; 6. connecting holes; 7. a storage chamber; 8. a movable groove; 9. an oil discharge port; 10. a control member; 11. an oil inlet; 12. a heat dissipation plate; 13. heat dissipation holes; 14. an airflow aperture; 15. a seal wheel; 16. a vent hole; 17. mounting holes; 18. a rack bar; 19. pushing the floating block; 20. accommodating grooves; 21. a slide bar; 22. sliding the floating block; 23. a rotating groove; 24. a rotating wheel; 25. and (5) clamping the rod.

Fig. 1 is a side view of the structure of the rapid cooling protection mechanism used after a short circuit of the circuit breaker in the intelligent manufacturing.

Fig. 2 is a front view of the structure of the rapid cooling protection mechanism used after the short circuit of the circuit breaker in the intelligent manufacturing.

Fig. 3 is an enlarged view of a portion a in a structure diagram 1 of a rapid cooling protection mechanism used after a short circuit of a circuit breaker in intelligent manufacturing according to the present invention.

Fig. 4 is an enlarged view of a portion B in the structure diagram 3 of the rapid cooling protection mechanism after a short circuit of the circuit breaker used in the intelligent manufacturing of the present invention.

Fig. 5 is a schematic view of the inside of a mounting hole of a structure of the rapid cooling protection mechanism after a short circuit of the circuit breaker used in the intelligent manufacturing of the invention.

Fig. 6 is an enlarged view of the position C in the structure diagram 5 of the rapid cooling protection mechanism after the short circuit of the circuit breaker used in the intelligent manufacturing of the invention.

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.

Please refer to fig. 1-6, a protection mechanism for rapidly cooling down after short circuit of a circuit breaker in intelligent manufacturing, which comprises a housing 1, wherein a clamping part of the housing 1 has good sealing performance, an inner cavity 2 is arranged inside the housing 1, transformer oil is filled inside the inner cavity 2, the oil level of the transformer oil is higher than the top surface of a heat dissipation plate 12, an air bag 3 is fixedly connected to the top of the housing 1, an air valve is arranged at the top of the air bag 3, a spring tube 4 extending to the inner cavity 2 is fixedly connected to the bottom of the air bag 3, a piston plate 5 is fixedly connected to the bottom of the spring tube 4, the piston plate 5 is located between the heat dissipation plate 12 and an opening above the connection hole 6, a connection hole 6 is formed inside the right wall of the housing 1, and the upper and lower openings.

Storage chamber 7 has been seted up to casing 1's left wall inside, movable groove 8 has been seted up to storage chamber 7's bottom, movable groove 8's inside is fixed with the limiting plate, oil drain port 9 has been seted up to movable groove 8's bottom, the one-way board that turns over of internally mounted of oil drain hole 9, movable groove 8's inside swing joint has control 10, control 10 is including floating the piece, connecting rod and closing plate, it keeps one section distance with storage chamber 7's inner bottom wall to float the piece, closing plate shutoff blocks up oil drain port 9 top opening, storage chamber 7's right wall has seted up oil inlet 11, oil inlet 11 is located storage chamber 7's middle part.

Inner chamber 2's inside fixedly connected with heating panel 12, louvre 13 has been seted up at the top of heating panel 12, louvre 13 is the infundibulate, it is narrow down to go up wide, and evenly distributed is at the upper and lower surface of heating panel 12, airflow hole 14 has been seted up in the front of heating panel 12, airflow hole 14 is arranged between louvre 13 with great ease, guarantee the heat exchange area maximize, both ends opening part movable mounting has sealed wheel 15 around the inside of airflow hole 14 just is located, two one side fixed mounting that sealed wheel 15 is relative have the transmission shaft that extends to mounting hole 17 inside, air vent 16 has been seted up in the outside of sealed wheel 15.

The bottom of the heat dissipation plate 12 is provided with a mounting hole 17, the inner wall of the mounting hole 17 is fixedly connected with a clamping key, a sealing valve is installed at the opening of the mounting hole 17, a toothed bar 18 is inserted into the mounting hole 17, the toothed bar 18 is meshed with a transmission shaft, the bottom of the toothed bar 18 is fixedly connected with a pushing floating block 19, the material density of the pushing floating block 19 and the material density of a sliding floating block 22 are the same as the transformer oil density at normal temperature, the bottom of the pushing floating block 19 is provided with an accommodating groove 20 extending into the toothed bar 18, the inside of the accommodating groove 20 is inserted with a sliding bar 21, the contact surface of the sliding bar 21 and the rotating wheel 24 is provided with teeth, the bottom of the sliding bar 21 is fixedly connected with the sliding floating block 22, the inner right wall of the accommodating groove 20 is provided with a rotating groove 23, the inside of the rotating groove 23 is movably provided with a rotating wheel 24, a pulling rope is fixedly connected between the, a return spring is arranged between the clamping rod 25 and the toothed bar 18, and the clamping rod 25 extends to the position between the clamping keys.

When a circuit is short-circuited, a large amount of current passes through internal components instantly, the internal components and coils generate a large amount of heat, the heat is absorbed by transformer oil, the transformer oil absorbing the heat expands and floats upwards and flows into the heat dissipation holes 13, and meanwhile, as the temperature of the transformer oil becomes high and the density becomes low, the buoyancy is reduced along with the transformer oil, so that the pushing floating block 19 and the sliding floating block 22 which are balanced with the transformer oil sink downwards, as the toothed rod 18 is fixed by the clamping rod 25 and the clamping piece at the moment, the sliding floating block 22 is driven to the sliding rod 21 to move firstly, the sliding rod 21 moves downwards to drive the rotating wheel 24 to rotate anticlockwise, the rotating wheel 24 drives the clamping rod 25 to be far away from the clamping key through the upper connecting rope, the toothed rod 18 is unlocked to move downwards to drive the sealing wheel 15 to rotate through the transmission shaft, the vent hole 16 is in butt joint with the air flow hole 14, and the, the return spring pushes the catch lever 25 to return and the toothed bar 18 is locked again.

At the moment, the airflow holes 14 are communicated with the outside, the heat exchange area is increased by distributing the airflow holes 14 in the heat dissipation holes 13 in a criss-cross mode, the heat dissipation efficiency is accelerated, the cooled transformer oil sinks, hot oil floats upwards, the heat dissipation efficiency is improved due to the circular flow, when the overall temperature of the transformer oil returns to be normal, the buoyancy is restored accordingly, the device is reset, and the airflow holes 14 are closed.

When the breaker inner part damages and needs maintenance, repeatedly extrude and inflate gasbag 3, it fills the air in the spring tube 4 to inflate gasbag 3, spring tube 4 pushes up and moves piston plate 5 and moves down, the transformer oil in inner chamber 2 is extruded to piston plate 5 top through connecting hole 6, after the oil level along with transformer oil descends to heating panel below 12, the air flows through louvre 13, through the pressure boost effect of infundibulate, make the air current blow the inside components and parts of breaker, reduce transformer oil and remain, when piston plate 5 moved to heating panel 12 top, empty the transformer oil below heating panel 12, casing 1 maintenance can be opened this moment.

After maintenance, the shell 1 is installed, air in the spring tube 4 is exhausted through the air valve to pull the piston plate 5 to move upwards, thus, the transformer oil flows back again through the connection hole 6, the surface of the transformer oil below the heat radiating plate 12 rises continuously, and the dust attached to the air and the components is carried in the rising process, and because the viscosity of the oil is higher, the dust floats on the surface of the transformer oil, and when the oil level rises to be flush with the oil inlet 11, the transformer oil with the dust on the surface layer flows into the storage chamber 7, when the oil level of the transformer oil in the storage cavity 7 reaches a certain height, the floating block moves upwards and is brought to the sealing plate to move upwards through the connecting rod, the oil drain port 9 is opened, so that the storage cavity 7 is communicated with the inner cavity 2 through the movable groove 8 and the oil drain port 9, through the principle of the communicating vessel, the oil inlet 11 continuously feeds oil until the oil surfaces on the two sides are flush, and at the moment, the transformer oil with dust is in the storage cavity 7.

When the circuit breaker needs to be maintained again, oil is pumped earlier to make its oil level descend, and when this moment oil level height and oil inlet 11 parallel and level, because there is not difference in height, the transformer oil who has the dust in the storage chamber 7 can not flow out, and the oil level can descend along with inner chamber 2 interior oil level in the storage chamber 7 together, descends to certain extent when the oil level, and the closing plate seals the oil drain port, so makes the transformer oil of surface adhesion dust can not discharged.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a quick cooling protection mechanism behind circuit breaker short circuit for in intelligent manufacturing, includes casing (1), its characterized in that: an inner cavity (2) is arranged inside the shell (1), an inflatable air bag (3) is fixedly connected to the top of the shell (1), a spring tube (4) extending to the inner cavity (2) is fixedly connected to the bottom of the inflatable air bag (3), a piston plate (5) is fixedly connected to the bottom of the spring tube (4), a connecting hole (6) is formed inside the right wall of the shell (1), a storage cavity (7) is formed inside the left wall of the shell (1), a movable groove (8) is formed at the bottom of the storage cavity (7), an oil discharge port (9) is formed at the bottom of the movable groove (8), a control piece (10) is movably connected inside the movable groove (8), an oil inlet (11) is formed in the right wall of the storage cavity (7), a heat dissipation plate (12) is fixedly connected to the inside of the inner cavity (2), and a heat dissipation plate (13) is formed at the top of the heat, the front surface of the heat dissipation plate (12) is provided with an airflow hole (14), sealing wheels (15) are movably mounted inside the airflow hole (14) and positioned at openings at the front end and the rear end, an air vent (16) is formed in the outer side of the sealing wheel (15), a mounting hole (17) is formed in the bottom of the heat dissipation plate (12), a toothed bar (18) is inserted into the mounting hole (17), the bottom of the toothed bar (18) is fixedly connected with a pushing floating block (19), a containing groove (20) extending into the toothed bar (18) is formed in the bottom of the pushing floating block (19), a sliding bar (21) is inserted into the containing groove (20), a sliding floating block (22) is fixedly connected to the bottom of the sliding bar (21), a rotating groove (23) is formed in the inner right wall of the containing groove (20), and a rotating wheel (24) is movably mounted inside the rotating groove (23), the inner right wall of the rotating groove (23) is inserted with a clamping rod (25), the inner cavity (2) is filled with transformer oil, and the oil level of the transformer oil is higher than the top surface of the heat dissipation plate (12).

2. The mechanism of claim 1, wherein the protection mechanism comprises: a limiting plate is fixed inside the movable groove (8), and the oil inlet (11) is positioned in the middle of the storage cavity (7).

3. The mechanism of claim 1, wherein the protection mechanism comprises: the control piece (10) comprises a floating block, a connecting rod and a sealing plate, the floating block and the inner bottom wall of the storage cavity (7) are kept at a certain distance, and the sealing plate blocks an opening above the oil drain port (9).

4. The mechanism of claim 1, wherein the protection mechanism comprises: the radiating holes (13) are funnel-shaped, and the airflow holes (14) are arranged among the radiating holes (13) in a longitudinal and transverse mode.

5. The mechanism of claim 1, wherein the protection mechanism comprises: the inner wall of the mounting hole (17) is fixedly connected with a clamping key, and a sealing valve is mounted at the opening of the mounting hole (17).

6. The mechanism of claim 1, wherein the protection mechanism comprises: the material density of the pushing floating block (19) and the sliding floating block (22) is the same as the transformer oil density at normal temperature.

7. The mechanism of claim 1, wherein the protection mechanism comprises: the contact surfaces of the sliding rod (21) and the rotating wheel (24) are provided with teeth.

8. The mechanism of claim 1, wherein the protection mechanism comprises: a pull rope is fixedly connected between the rotating wheel (24) and the clamping rod (25).