CN218826739U

CN218826739U - Small arc extinguish chamber structure

Info

Publication number: CN218826739U
Application number: CN202223310803.6U
Authority: CN
Inventors: 黄炜; 谭付
Original assignee: Yueqing Zili Electric Appliance Co ltd
Current assignee: Yueqing Zili Electric Appliance Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-04-07
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a small arc extinguish chamber structure, which comprises an arc extinguish chamber consisting of an arc isolating wall and a fixed plate, wherein a plurality of metal grid pieces are distributed in the inner cavity array of the arc extinguish chamber, the top parts of the metal grid pieces are fixedly connected with insulating grid pieces, the top parts of the insulating grid pieces are provided with insulating plates, the top parts of the insulating plates are provided with heat collecting plates, and the top parts of the heat collecting plates are provided with heat conducting plates; the heat conducting plate is arranged at the top of the insulating partition plate, the heat radiating plates are arranged on two sides of the heat conducting plate, after electric arcs in the arc extinguishing chamber are pulled into the insulating grid plate, the temperature in the insulating grid plate and the temperature in the insulating plate can rise along with the electric arcs, accumulated heat can be conducted to the heat conducting plate through the heat collecting plate, energy in the heat conducting plate can be transmitted to the heat radiating plates, and the heat is dissipated through the heat radiating plates; the supporting frames are arranged on the two sides of the insulating plate, and the limiting mechanisms are arranged in the supporting frames, so that the insulating plate and the fixing frame can be detachably mounted.

Description

Small arc extinguish chamber structure

Technical Field

The utility model relates to a circuit breaker technical field, specific is a small-size explosion chamber structure.

Background

In the action process that a moving contact and a static contact of the circuit breaker are broken under the condition of load or fault large current, air medium is discharged due to the voltage between the moving contact and the static contact to form electric arc, and in order to ensure the reliable operation of the circuit breaker, an arc extinguishing chamber is generally arranged in the circuit breaker to extinguish the electric arc. However, since the arc gas contains metal particles, the metal particles tend to short-circuit conductive members or electric devices around the circuit breaker. Therefore, in order to cool and deionize the quenching gas, it is common practice to provide the outlet point of the quenching chamber with a deionization device.

In the prior art, for example, application No. CN201610208829X discloses an arc extinguish chamber with a grid structure, which specifically includes an arc extinguish chamber wall, two arc splitting areas, an insulating partition, a metal grid and an insulating grid; after the metal grid plate has the deionization effect on the electric arc, the electric arc voltage is increased, when the electric arc moves to the junction of the metal grid plate and the insulating grid plate, the arc root stays on the metal grid plate, the electric arc is pulled into the insulating grid plate, the arc column part is gradually thinned, the electric arc voltage is further increased, and when the power supply voltage cannot maintain the electric arc voltage, the electric arc is extinguished.

However, in the application published under this application No. CN201610208829X, when the arc is drawn into the insulating partition and the insulating grid, and the arc is used for a long time, the temperature thereof is increased, and if the temperature is not dissipated in time, the entire arc-extinguishing chamber is damaged, thereby reducing the service life of the arc-extinguishing chamber.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a small-size explosion chamber structure to solve the problem that proposes among the above-mentioned background art.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a small-size explosion chamber structure, includes the explosion chamber that flash barrier and fixed plate constitute, the inner chamber array distribution of explosion chamber has a plurality of metal bars pieces, and the top of metal bars piece is fixed to be linked together has the insulated gate piece, and the top of insulated gate piece is provided with the insulation board, and the top of insulation board is provided with the thermal-arrest board, and the top of thermal-arrest board is provided with the heat-conducting plate, and the lateral wall of fixed plate is provided with the mount, and the insulation board links to each other with the mount is fixed.

Furthermore, limiting mechanisms are arranged on two sides of the side wall of the fixing frame, limiting holes matched with the limiting mechanisms are formed in the side wall of the fixing frame, and the insulating plate is fixedly connected with the fixing frame through the limiting mechanisms.

Furthermore, the both ends of insulation board are all fixed to link there is the support frame, and the heat collection plate is fixed in the top center department of insulation board, and the lateral wall of support frame is provided with stop gear, and the support frame passes through stop gear and fixed the linking to each other with the mount.

Further, stop gear includes the gag lever post, and the gag lever post is located the inner chamber of support frame, and the one end that the gag lever post is located the support frame is provided with spacing spring, and the gag lever post links to each other with the support frame through spacing spring, and the spacing hole with gag lever post matched with is seted up to the lateral wall of fixed plate, and the support frame passes through the gag lever post and links to each other with the mount.

Further, the top stationary phase of insulation board even has splint, and the bottom of heat collection plate is located splint, and the top inside wall of heat collection plate all fixes and is provided with spacing slider, and the both ends of heat-conducting plate are all seted up with spacing slider matched with spout, and the heat-conducting plate passes through spacing slider and slides and link to each other.

Further, the both sides homogeneous phase of heat-conducting plate even has the heating panel, and the louvre has been seted up on the surface of heating panel.

The utility model has the advantages that:

1. the utility model discloses a be provided with the heat-conducting plate at the top of insulating barrier, the both sides of heat-conducting plate still are equipped with the heating panel, after electric arc in the arc extinguish chamber was pulled into on the insulated gate piece, the temperature in insulated gate piece and the insulation board will rise along with it, and the heat of gathering will be conducted to the heat-conducting plate through the thermal-arrest board, and the energy in the heat-conducting plate will be transmitted to the heating panel, and the heat is lost through the heating panel;

2. the utility model discloses a both sides at the insulation board are provided with the support frame, and the support frame is provided with stop gear through being provided with for the insulation board is installed for detachable with the mount, and simultaneously, the thermal-arrest board all is detachable with the heat-conducting plate, is convenient for load and unload whole heat abstractor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts;

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

FIG. 2 is a schematic view illustrating the connection between the heat collecting plate and the heat conducting plate;

fig. 3 is a schematic structural diagram of the limiting mechanism of the present invention.

The reference numbers in the figures are as follows:

1. an arc barrier wall; 2. a metal grid sheet; 21. an insulated gate plate; 3. a fixing plate; 4. an insulating plate; 41. a support frame; 5. a heat collecting plate; 51. a splint; 52. a limiting slide block; 6. a heat conducting plate; 61. a heat dissipation plate; 62. heat dissipation holes; 7. a fixed mount; 8. a limiting mechanism; 81. a limiting rod; 82. and a limiting spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, a small arc extinguish chamber structure comprises an arc extinguish chamber formed by an arc isolating wall 1 and a fixing plate 3, a plurality of metal grid pieces 2 are distributed in an inner cavity array of the arc extinguish chamber, an insulating grid piece 21 is fixedly connected to the top of each metal grid piece 2, an insulating plate 4 is arranged on the top of each insulating grid piece 21, the structure in the arc extinguish chamber can be the same as that disclosed in the application with the application number of CN201610208829X, so that electric arcs can be conveniently pulled into the insulating plate 4 and the insulating grid piece 21, a heat collecting plate 5 is arranged on the top of the insulating plate 4, the heat collecting plate 5 is used for absorbing heat on the insulating plate 4 and the insulating grid piece 21, a heat conducting plate 6 is arranged on the top of the heat collecting plate 5, the heat conducting plate 6 is used for absorbing heat on the surface of the heat collecting plate 5, a fixing frame 7 is arranged on the side wall of the fixing plate 3, and the insulating plate 4 is fixedly connected with the fixing frame 7 and used for fixing the insulating plate 4.

Referring to fig. 1 and 2, both sides of the side wall of the fixing frame 7 are provided with limiting mechanisms 8, the side wall of the fixing frame 7 is provided with limiting holes matched with the limiting mechanisms 8, the insulating plate 4 is fixedly connected with the fixing frame 7 through the limiting mechanisms 8, and the limiting mechanisms 8 are inserted into the fixing frame 7, so that the insulating plate 4 can be fixed, and the insulating plate 4 can be conveniently disassembled and assembled by the limiting mechanisms 8.

The two ends of the insulating plate 4 are fixedly connected with a support frame 41, the heat collecting plate 5 is fixed at the center of the top of the insulating plate 4, a limiting mechanism 8 is arranged on the side wall of the support frame 41, and the support frame 41 is fixedly connected with the fixing frame 7 through the limiting mechanism 8.

Referring to fig. 3, the limiting mechanism 8 includes a limiting rod 81, the limiting rod 81 is located in the inner cavity of the support frame 41, one end of the limiting rod 81 located in the support frame 41 is provided with a limiting spring 82, and the limiting rod 81 is connected with the support frame 41 through the limiting spring 82, when the support frame 41 is inserted, the limiting rod 81 is extruded and will contract inwards, a limiting hole matched with the limiting rod 81 is formed in the side wall of the fixing plate 3, the support frame 41 is connected with the fixing frame 7 through the limiting rod 81, after the limiting rod 81 is aligned with the limiting hole, the limiting rod 81 will be under the elastic action of the limiting spring 82, so that the limiting rod 81 is inserted into the limiting hole, and the support frame 41 is fixed with the fixing frame 7.

Referring to fig. 2, the top of the insulating plate 4 is fixedly connected with a clamping plate 51, the bottom of the heat collecting plate 5 is located in the clamping plate 51, the heat collecting plate 5 can be inserted into the clamping plate 51, so that the heat collecting plate 5 can be fixed, a limiting slider 52 is fixedly arranged on the inner side wall of the top of the heat collecting plate 5, sliding grooves matched with the limiting slider 52 are formed in both ends of the heat conducting plate 6, the heat conducting plate 6 is connected in a sliding manner through the limiting slider 52, and the heat conducting plate 6 can also slide inwards along the limiting slider 52, so that the heat conducting plate 6 is fixed.

The both sides of heat-conducting plate 6 all fix and link to each other and have linked to each other the heating panel 61, and louvre 62 has been seted up on the surface of heating panel 61, and after the heat in the explosion chamber was concentrated to heat-conducting plate 6, the heat of heat-conducting plate 6 will be conducted on heating panel 61, and heating panel 61 is used for dispelling the heat to the heat.

The utility model discloses a theory of operation: the insulating plate 4, the heat collecting plate 5 and the heat conducting plate 6 are all detachable, when mounting, the supporting frames 41 at two ends of the insulating plate 4 are inserted into the fixing frame 7, the limiting rod 81 in the supporting frame 41 is extruded, the limiting rod 81 is retracted inwards, after the limiting rod 81 is aligned with the limiting hole, the limiting rod 81 is under the elastic action of the limiting spring 82, so that the limiting rod 81 is inserted into the limiting hole, the supporting frame 41 is fixed with the fixing frame 7, then, the heat collecting plate 5 can be inserted into the clamping plate 51, the heat collecting plate 5 is fixedly connected, and finally, the heat conducting plate 6 can be inserted into the heat conducting plate 6 along the limiting sliding block 52.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a small-size explosion chamber structure, includes the explosion chamber that separates arc wall (1) and fixed plate (3) and constitute, a serial communication port, the inner chamber array distribution of explosion chamber has a plurality of metal bars pieces (2), and the top of metal bars piece (2) is fixed links to each other and has insulated gate piece (21), and the top of insulated gate piece (21) is provided with insulation board (4), and the top of insulation board (4) is provided with thermal-arrest board (5), and the top of thermal-arrest board (5) is provided with heat-conducting plate (6), and the lateral wall of fixed plate (3) is provided with mount (7), and insulation board (4) link to each other with mount (7) are fixed.

2. The miniature arc extinguish chamber structure according to claim 1, wherein both sides of the side wall of the fixing frame (7) are provided with limiting mechanisms (8), the side wall of the fixing frame (7) is provided with limiting holes matched with the limiting mechanisms (8), and the insulating plate (4) is fixedly connected with the fixing frame (7) through the limiting mechanisms (8).

3. The small arc extinguish chamber structure according to claim 2, wherein a support frame (41) is fixedly connected to each of two ends of the insulating plate (4), the heat collecting plate (5) is fixed at the center of the top of the insulating plate (4), a limiting mechanism (8) is arranged on the side wall of the support frame (41), and the support frame (41) is fixedly connected with the fixing frame (7) through the limiting mechanism (8).

4. The small arc extinguish chamber structure according to claim 3, characterized in that the limiting mechanism (8) comprises a limiting rod (81), the limiting rod (81) is positioned in the inner cavity of the support frame (41), a limiting spring (82) is arranged at one end of the limiting rod (81) positioned in the support frame (41), the limiting rod (81) is connected with the support frame (41) through the limiting spring (82), a limiting hole matched with the limiting rod (81) is formed in the side wall of the fixing plate (3), and the support frame (41) is connected with the fixing frame (7) through the limiting rod (81).

5. The small arc extinguish chamber structure according to claim 3, wherein the top of the insulating plate (4) is fixedly connected with a clamping plate (51), the bottom of the heat collecting plate (5) is positioned in the clamping plate (51), the inner side wall of the top of the heat collecting plate (5) is fixedly provided with a limiting sliding block (52), two ends of the heat conducting plate (6) are respectively provided with a sliding groove matched with the limiting sliding block (52), and the heat conducting plate (6) is connected with the limiting sliding block (52) in a sliding manner.

6. The small arc extinguish chamber structure according to claim 5, wherein heat dissipation plates (61) are fixedly connected to both sides of the heat conduction plate (6), and heat dissipation holes (62) are formed in the surfaces of the heat dissipation plates (61).