CN113825363A

CN113825363A - Direct current breaker protection device

Info

Publication number: CN113825363A
Application number: CN202111033922.9A
Authority: CN
Inventors: 唐文婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-12-21

Abstract

The invention relates to the technical field of circuit breaker equipment and discloses a direct current circuit breaker protection device which comprises a shell, wherein wire placing grooves are formed in the middle shafts of the upper side wall and the lower side wall of the shell, a plurality of heat dissipation holes are formed in the middle shafts of the left side wall and the right side wall of the shell, a placing groove is formed in the middle shaft of the outer wall of the front side of the shell, and a circuit breaker is arranged in the placing groove. This direct current circuit breaker protection device, when the inside temperature of circuit breaker reached the certain degree, the heat response ball took place deformation, and then promoted the piston rod and shifted out the louvre, the louvre was in the open mode this moment, be convenient for between gaseous entering baffle and the shell, thereby reached the temperature and when being in under the normal condition, the louvre was in the closed condition, when the temperature rose, the louvre was in the open mode, prevented that the louvre was in the open mode always, inside too much dust entered into the device, influenced the device's life.

Description

Direct current breaker protection device

Technical Field

The invention relates to the technical field of circuit breaker equipment, in particular to a direct current circuit breaker protection device.

Background

The voltage regulation mode of the tap changer of the transformer is characterized in that an off-circuit voltage regulation switch does not have the capacity of gear shifting with load, because the tap changer has a short-time disconnection process in the gear shifting process, the disconnection of the negative charge current can cause arc discharge between contacts to burn out the tap changer or short circuit, and the transformer has to be powered off in the gear shifting process, so the tap changer is generally used for the transformer which has not strict requirements on voltage and does not need frequent gear shifting, and the on-load tap changer can switch gears with load.

With the use of the circuit breaker, the long-term full load operation of load current or environmental impact, even if short circuit or overload does not occur, the phenomena of heating, adhesion and even burning of the contacts of the circuit breaker can be caused frequently due to the increase of current.

Disclosure of Invention

The present invention is directed to a protection device for a dc circuit breaker, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a direct current circuit breaker protection device, includes the shell, the wire casing has all been seted up to the upper and lower both sides wall axis department of shell, a plurality of louvre has all been seted up to the left and right sides wall axis department of shell, the standing groove has been seted up to the front outer wall axis department of shell, the inside of standing groove is provided with circuit breaker.

Preferably, the left side and the right side of the inside of the shell are both provided with a partition plate, the upper end and the lower end of the partition plate are respectively fixedly connected with the inner walls of the upper side and the lower side of the shell, the partition plate is provided with a plurality of air inlets, each air inlet is arranged between two heat dissipation holes, and each heat sensing ball is arranged between every two air inlets and fixedly connected with the outer surface of the partition plate.

Preferably, the outer surfaces of the upper side and the lower side of the heat sensing ball are fixedly connected with extrusion rods, the outer surface of one end, facing the heat dissipation holes, of the heat sensing ball is fixedly connected with a piston rod, and one end, far away from the heat sensing ball, of the piston rod is arranged inside the heat dissipation holes in a sliding mode.

Preferably, two the one end that the heat response ball was kept away from to the stripper bar is provided with the arc rubber slab, the upper and lower both ends of arc rubber slab respectively with the surface fixed connection of two stripper bars, the inside of arc rubber slab is hollowed out and is set up.

Preferably, a plurality of through holes are formed in the arc-shaped rubber plate, a sliding groove is formed in the middle shaft of the arc-shaped rubber plate, a friction rod is arranged on the outer surface of the arc-shaped rubber plate in a sliding mode, piston plates are arranged inside the arc-shaped rubber plate in a sliding mode, an elastic plate is fixedly connected to the middle shaft between the two piston plates, the outer surface of each piston plate is fixedly connected with the outer surface of the friction rod through a connecting rod, the connecting rods are arranged inside the sliding grooves, an elastic belt is fixedly connected to the outer surface of each piston plate, and one end, far away from the piston plates, of the elastic belt is fixedly connected with the inner wall of the arc-shaped rubber plate.

Preferably, the upper and lower both sides that the friction lever was kept away from to the arc rubber slab one end are articulated to have an arc dwang, the one end that the arc rubber slab was kept away from to the arc dwang is provided with the baffle, the surface of baffle is articulated with the one end that the friction lever was kept away from to the arc dwang, the baffle sets up in the inside of inlet port, two the axis department fixed connection elastic rod of arc dwang, the left and right sides of arc dwang is provided with arc rubber guide plate, two respectively the outer fixed surface of arc rubber guide plate and arc rubber slab is connected, two the one end that the arc rubber slab was kept away from to the arc rubber guide plate sets up with the inner wall contact of baffle.

Compared with the prior art, the invention has the beneficial effects that:

(1) this direct current breaker protection device, when the inside temperature of circuit breaker reaches the certain degree, the deformation takes place for heat response ball, and then promotes the piston rod and shifts out the louvre, the louvre is in the open mode this moment, be convenient for between gaseous entering baffle and the shell, thereby reached the temperature and when being in under the normal condition, the louvre is in the closed condition, when the temperature risees, the louvre is in the open mode, prevented that the louvre is in the open mode always, have too much dust to enter into inside the device, influence the device's life.

(2) This direct current breaker protection device, the change of heat response ball still can extrude the arc rubber slab and take place deformation, and then can make the friction lever take place to remove along the outer wall of arc rubber slab under the effect of deformation inflation power, can make the friction lever have a certain amount of static under the effect of friction power, can take the dust in the air to adsorb under static nature itself, and then reach the purpose of purifying the gas.

(3) This direct current breaker protection device, the removal of friction lever can drive the piston board and take place to remove, can make the piston board when the arc rubber slab is inside to be removed under the effect of elastic webbing, forms an inside gas suction, and then has accelerated the speed when gaseous through-hole, has improved its radiating efficiency.

(4) This direct current breaker protection device, when gaseous through the through-hole, can make the arc dwang take place to rotate under the effect of air current thrust, can shift out the inlet port with the baffle under the arc dwang rotation condition, and then make the inlet port open and realize gaseous entering and reached the radiating purpose to the device to further prevent that the dust from entering into the device inside and influencing the device's use.

(5) This direct current breaker protection device, when gaseous when passing through the through-hole, the deformation of arc rubber slab can oppress arc rubber guide plate and take place deformation, at the in-process that arc rubber guide plate deformed, can reduce gaseous activity space, and then has an extruded effect for the gas through the through-hole to gas has been accelerated and has been entered into the inside speed of the device, has improved the radiating efficiency, has strengthened the radiating effect.

Drawings

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

FIG. 2 is a cross-sectional view of the overall construction of the present invention;

FIG. 3 is a half sectional view of the housing of the present invention;

FIG. 4 is a schematic view of the overall structure of the arc-shaped rubber sheet according to the present invention;

FIG. 5 is a schematic view of the overall structure of the arc-shaped rubber deflector of the present invention;

FIG. 6 is a half sectional view of an arc-shaped rubber sheet according to the present invention.

In the figure: 1. a housing; 11. a wire releasing groove; 12. heat dissipation holes; 13. a placement groove; 2. a cut-off switch; 3. a partition plate; 31. an air inlet; 4. a heat sensing ball; 41. an extrusion stem; 42. a piston rod; 5. an arc-shaped rubber plate; 51. a through hole; 52. a chute; 6. a friction lever; 7. a piston plate; 71. an elastic plate; 72. an elastic band; 8. an arc-shaped rotating rod; 81. a baffle plate; 82. an elastic rod; 83. an arc-shaped rubber guide 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. 1-6, the present invention provides a technical solution: the utility model provides a direct current breaker protection device, including shell 1, the purpose that sets up like this is for the convenience protect the circuit, wire casing 11 has all been seted up to the epaxial department in the upper and lower both sides wall of shell 1, the purpose that sets up like this is for the convenience of piercing through of circuit, a plurality of louvre 12 has all been seted up to the axis department in the left and right sides wall of shell 1, the purpose that sets up like this is for the convenience of heat dissipation, standing groove 13 has been seted up to the positive outer wall axis department of shell 1, the purpose that sets up like this is for the convenience of setting circuit breaker 2, the inside of standing groove 13 is provided with circuit breaker 2, the purpose that sets up like this is for the convenience of protecting the circuit.

Preferably, in the present embodiment, in order to utilize the heat generated during the disconnection, the partitions 3 are disposed on both left and right sides of the inside of the housing 1, the purpose of the arrangement is to facilitate the arrangement of the partition boards 3, the upper and lower ends of the two partition boards 3 are respectively fixedly connected with the inner walls of the upper and lower sides of the shell 1, the purpose of this arrangement is to facilitate the fixing of the partition boards 3, two of the partition boards 3 are provided with a plurality of air inlet holes 31, the purpose of this is to facilitate the entry and exit of the gas, each intake hole 31 is provided between two louvers 12, the purpose of this arrangement is to facilitate the exchange of gas, a heat sensing ball 4 is provided between each two gas inlet holes 31, this is for the purpose of facilitating the installation of the heat sensing ball 4, and the heat sensing ball 4 is fixedly coupled to the outer surface of the partition plate 3, and this is for the purpose of fixing the heat sensing ball 4.

Preferably, in this embodiment, in order to facilitate the utilization of the thermal change and further enable the heat dissipation hole 12 to be opened, the outer surface of the upper side and the lower side of the heat sensing ball 4 is fixedly connected with the pressing rod 41, so as to facilitate the fixing of the pressing rod 41, the outer surface of the end of the heat sensing ball 4 facing the heat dissipation hole 12 is fixedly connected with the piston rod 42, so as to facilitate the setting of the piston rod 42, the end of the piston rod 42 far away from the heat sensing ball 4 is slidably disposed inside the heat dissipation hole 12, and so as to facilitate the blocking of the heat dissipation hole 12.

Preferably, in this embodiment, in order to facilitate clearing up the external gas, the one end that heat response ball 4 was kept away from to two stripper bars 41 is provided with arc rubber slab 5, the purpose that sets up like this is for facilitating setting up arc rubber slab 5, the upper and lower both ends of arc rubber slab 5 respectively with two stripper bars 41's fixed surface connection, the purpose that sets up like this is for facilitating fixing arc rubber slab 5, the setting is drawn in the inside of arc rubber slab 5, the purpose that sets up like this is for facilitating clearing up gas.

Preferably, in this embodiment, in order to enhance the adsorption force on the gas, the arc-shaped rubber plate 5 is provided with a plurality of through holes 51, which are provided for facilitating the circulation of the gas, the middle axis of the arc-shaped rubber plate 5 is provided with a sliding groove 52, which is provided for facilitating the movement of the friction rod 6, the outer surface of the arc-shaped rubber plate 5 is slidably provided with the friction rod 6, which is provided for facilitating the fixing of the friction rod 6, the inner portion of the arc-shaped rubber plate 5 is slidably provided with a piston plate 7, which is provided for facilitating the setting of the piston plate 7, an elastic plate 71 is fixedly connected to the middle axis between the two piston plates 7, which is provided for facilitating the quick return of the piston plate 7, the outer surface of the piston plate 7 is fixedly connected to the outer surface of the friction rod 6 through a connecting rod, which is provided for facilitating the connection between the piston plate 7 and the friction rod 6, the connecting rod is arranged in the sliding groove 52, so that the connecting rod can move conveniently, the elastic belt 72 is fixedly connected to the outer surface of the piston plate 7, so that the elastic belt 72 is fixed, one end, away from the piston plate 7, of the elastic belt 72 is fixedly connected with the inner wall of the arc-shaped rubber plate 5, and so that the piston plate 7 can be reset quickly.

Preferably, in this embodiment, in order to facilitate diversion of gas and further achieve the ventilation effect, the upper and lower sides of one end of the arc rubber plate 5 away from the friction rod 6 are hinged to the arc rotating rod 8, the purpose of such setting is to facilitate rotation of the arc rotating rod 8, one end of the arc rotating rod 8 away from the arc rubber plate 5 is provided with a baffle 81, the purpose of such setting is to facilitate setting of the baffle 81, the outer surface of the baffle 81 is hinged to one end of the arc rotating rod 8 away from the friction rod 6, the purpose of such setting is to facilitate rotation of the arc rotating rod 8, the baffle 81 is arranged inside the air inlet hole 31, the purpose of such setting is to facilitate rotation of the baffle 81, the middle axes of the two arc rotating rods 8 are fixedly connected with the elastic rod 82, the purpose of such setting is to facilitate quick reset of the arc rotating rod 8, the left and right sides of the arc rotating rod 8 are respectively provided with the arc rubber guide plates 83, the purpose that sets up like this is for the convenience of setting up arc rubber guide plate 83, and two arc rubber guide plates 83 are connected with the surface fixed connection of arc rubber slab 5, and the purpose that sets up like this is for the convenience of fixing arc rubber guide plate 83, and the one end that arc rubber slab 5 was kept away from to two arc rubber guide plates 83 sets up with the inner wall contact of baffle 3, and the purpose that sets up like this is for the convenience of the rotation of arc rubber guide plate 83.

The working principle is as follows:

when the internal temperature of the circuit breaker reaches a certain degree, the heat sensing ball 4 deforms, so that the piston rod 42 is pushed to move out of the heat dissipation hole 12, the heat dissipation hole 12 is in an open state at the moment, gas conveniently enters between the partition plate 3 and the shell 1, when the temperature is in a normal state, the heat dissipation hole 12 is in a closed state, when the temperature is raised, the heat dissipation hole 12 is in an open state, the heat dissipation hole 12 is prevented from being in an open state all the time, excessive dust enters the device and influences the service life of the device, meanwhile, the heat sensing ball 4 can extrude the arc-shaped rubber plate 5 to deform, the friction rod 6 can move along the outer wall of the arc-shaped rubber plate 5 under the action of deformation expansion force, the friction rod 6 can carry a certain amount of static electricity under the action of the friction force, and the dust in the air can be adsorbed under the property of the static electricity, thereby achieving the purpose of purifying the gas.

Secondly, the movement of the friction rod 6 drives the piston plate 7 to move, when the piston plate 7 moves in the arc-shaped rubber plate 5 under the action of the elastic belt 72, an inward gas suction force is formed, so that the speed of gas passing through the through hole 51 is increased, the heat dissipation efficiency of the gas is improved, finally, when the gas passes through the through hole 51, the arc-shaped rotating rod 8 can rotate under the action of an air flow pushing force, the baffle 81 can be moved out of the air inlet hole 31 under the rotation condition of the arc-shaped rotating rod 8, so that the air inlet hole 31 is opened to achieve the purpose of dissipating heat of the device, thereby further preventing dust from entering the device to influence the use of the device, secondly, when the gas passes through the through hole 51, the deformation of the arc-shaped rubber plate 5 can press the arc-shaped rubber guide plate 83 to deform, and in the deformation process of the arc-shaped rubber guide plate 83, the activity space of the gas can be reduced, and then the gas passing through the through hole 51 has an extrusion effect, so that the speed of the gas entering the device is increased, the heat dissipation efficiency is improved, and the heat dissipation effect is enhanced.

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. A direct current breaker protection device, includes shell (1), its characterized in that: wire releasing grooves (11) are formed in the middle shafts of the upper side wall and the lower side wall of the shell (1), a plurality of heat releasing holes (12) are formed in the middle shafts of the left side wall and the right side wall of the shell (1), a placing groove (13) is formed in the middle shaft of the outer wall of the front side of the shell (1), and a circuit breaker (2) is arranged inside the placing groove (13).

2. A dc circuit breaker protection device according to claim 1, wherein: the inside left and right sides of shell (1) all is provided with baffle (3), two the upper and lower both ends of baffle (3) respectively with the upper and lower both sides inner wall fixed connection of shell (1), two a plurality of inlet port (31), every have been seted up on baffle (3) inlet port (31) set up between two louvre (12), per two be provided with heat response ball (4) between inlet port (31), the outer fixed surface of heat response ball (4) and baffle (3) is connected.

3. A dc circuit breaker protection device according to claim 2, wherein: the heat induction ball is characterized in that extrusion rods (41) are fixedly connected to the outer surfaces of the upper side and the lower side of the heat induction ball (4), a piston rod (42) is fixedly connected to the outer surface of one end, facing the heat dissipation holes (12), of the heat induction ball (4), and one end, far away from the heat induction ball (4), of the piston rod (42) is arranged inside the heat dissipation holes (12) in a sliding mode.

4. A dc circuit breaker protection device according to claim 3, wherein: two the one end that heat response ball (4) were kept away from in extrusion pole (41) is provided with arc rubber slab (5), the upper and lower both ends of arc rubber slab (5) respectively with the fixed surface connection of two extrusion poles (41), the inside of arc rubber slab (5) is hollowed out and is set up.

5. A DC circuit breaker protection device according to claim 4, characterized in that: the improved rubber sealing device is characterized in that a plurality of through holes (51) are formed in the arc-shaped rubber plate (5), a sliding groove (52) is formed in the middle shaft of the arc-shaped rubber plate (5), a friction rod (6) is arranged on the outer surface of the arc-shaped rubber plate (5) in a sliding mode, a piston plate (7) is arranged inside the arc-shaped rubber plate (5) in a sliding mode, an elastic plate (71) is fixedly connected to the middle shaft between the piston plates (7), the outer surface of the piston plate (7) is fixedly connected with the outer surface of the friction rod (6) through a connecting rod, the connecting rod is arranged inside the sliding groove (52), an elastic belt (72) is fixedly connected to the outer surface of the piston plate (7), and one end, far away from the piston plate (7), of the elastic belt (72) is fixedly connected with the inner wall of the arc-shaped rubber plate (5).

6. A DC circuit breaker protection device according to claim 5, characterized in that: the upper and lower sides of one end of the arc-shaped rubber plate (5) far away from the friction rod (6) are hinged with arc-shaped rotating rods (8), a baffle plate (81) is arranged at one end of the arc-shaped rotating rod (8) far away from the arc-shaped rubber plate (5), the outer surface of the baffle plate (81) is hinged with one end of the arc-shaped rotating rod (8) far away from the friction rod (6), the baffle plate (81) is arranged inside the air inlet hole (31), the middle shaft of the two arc-shaped rotating rods (8) is fixedly connected with an elastic rod (82), the left and right sides of arc dwang (8) is provided with arc rubber guide plate (83), two respectively the outer fixed surface of arc rubber guide plate (83) and arc rubber slab (5) is connected, two the one end that arc rubber slab (5) were kept away from in arc rubber guide plate (83) sets up with the inner wall contact of baffle (3).