CN219267586U

CN219267586U - Explosion chamber assembly structure

Info

Publication number: CN219267586U
Application number: CN202320023646.6U
Authority: CN
Inventors: 谭邵峰; 赵晶; 戚霄汉; 朱颖
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-06-27
Anticipated expiration: 2033-01-05

Abstract

The utility model discloses an arc extinguish chamber assembly structure, which relates to the technical field of circuit breakers and comprises a bottom plate, wherein two arc-isolating plates are slidably arranged at the top of the bottom plate, a plurality of arc-extinguishing grid plates are arranged between the two arc-isolating plates, a bidirectional screw rod is rotatably arranged in the bottom plate, two connecting plates are connected onto the bidirectional screw rod in a threaded manner, a sliding opening for the sliding of the connecting plates is formed in the top wall of the bottom plate, the top ends of the connecting plates penetrate through the sliding opening to extend to the outside of the bottom plate and are connected with the bottom surfaces of the arc-isolating plates, two limiting blocks are arranged on the left side and the right side of each arc-extinguishing grid plate, and limiting holes for the limiting blocks to penetrate are formed in the arc-isolating plates. According to the utility model, the arc extinguishing grid plate is prevented from generating installation deviation, the installation efficiency is improved, the heat dissipation efficiency of the arc extinguishing chamber is accelerated, and the practicability is stronger.

Description

Explosion chamber assembly structure

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to an arc extinguishing chamber assembly structure.

Background

Currently, arc extinguishing chambers are widely used in the field of piezoelectric devices, in particular in circuit breakers. In the action process of breaking the breaker with load, the voltage between the contacts causes the air medium to discharge to form an arc, so that an arc extinguishing chamber is usually arranged in the breaker switch to extinguish the arc, thereby ensuring the safe operation of electrical equipment. The current explosion chamber includes two explosion plates, sets up a plurality of explosion pieces between two explosion plates, and each explosion piece all adopts the mode of riveting to connect on two explosion plates, however, the structural design of the explosion piece of current explosion chamber is unreasonable to lead to the riveting efficiency of the explosion piece of this explosion chamber lower, and this explosion chamber still has that the structure is complicated, the performance is unstable, the arc extinguishing effect is poor, the inconvenient defect of assembly.

The prior patent (publication number: CN 206179720U) proposes an arc extinguishing chamber, which comprises two arc-isolating plates and a plurality of arc-extinguishing plates, wherein clamping blocks for being clamped with the two arc-isolating plates are respectively arranged on two sides of each arc-extinguishing plate, a groove body is respectively arranged on two sides of each clamping block, a clamping hole matched with is arranged at a position corresponding to the clamping block on each arc-isolating plate, the upper end of each clamping block penetrates through the clamping hole on each arc-isolating plate and is exposed out of each arc-isolating plate, a riveting groove is arranged in the middle of the upper end of each clamping block, two clamps with the same structure are formed on two sides of each riveting groove, and the two clamps are respectively bent towards two sides of the clamping hole and form clamping connection between each arc-extinguishing plate and each arc-isolating plate.

The arc extinguishing chamber has the following defects in use: the arc extinguishing grid plates are connected with the arc-isolating plates in a clamping way, so that the installation speed of the arc extinguishing chamber in the production process is low, the assembly process is complex, the production efficiency is greatly influenced, and when one arc extinguishing grid plate is damaged in the use process, the arc extinguishing grid plate is inconvenient to replace; meanwhile, the arc-extinguishing chamber can generate heat when in use, the heat is not easy to emit in time, the practical efficiency and the service life of the arc-extinguishing chamber can be influenced after the time is long, and therefore, the problem is solved by the arc-extinguishing chamber assembling structure.

Disclosure of Invention

The utility model provides an arc-extinguishing chamber assembly structure, which solves the problem that an arc-extinguishing gate sheet is in clamping connection with an arc-isolating plate, so that the installation speed of the arc-extinguishing chamber in the production process is low, the assembly process is complex, the production efficiency is greatly influenced, and when one arc-extinguishing gate sheet is damaged in the use process, the arc-extinguishing gate sheet is inconvenient to replace; meanwhile, the arc extinguishing chamber can generate heat when in use, the heat is not easy to be emitted in time, and the practical efficiency and the service life of the arc extinguishing chamber can be influenced for a long time.

In order to solve the technical problems, the arc extinguish chamber assembly structure comprises a bottom plate, two arc-isolating plates are slidably arranged at the top of the bottom plate, a plurality of arc-extinguishing grid plates are arranged between the two arc-isolating plates, a bidirectional screw rod is rotatably arranged in the bottom plate, two connecting plates are connected to the bidirectional screw rod in a threaded manner, sliding ports for sliding the connecting plates are formed in the top wall of the bottom plate, the top ends of the connecting plates penetrate through the sliding ports to extend to the outside of the bottom plate and are connected with the bottom surfaces of the arc-isolating plates, two limiting blocks are arranged on the left side and the right side of each arc-extinguishing grid plate, and limiting holes for the limiting blocks to penetrate are formed in the arc-isolating plates.

Preferably, the outside block of stopper is connected with the heating panel, one side that the baffle was kept away from to the heating panel is connected with radiating fin, one side that the heating panel is close to the baffle is connected with the heat-conducting plate, offer the opening that supplies the heat-conducting plate to pass on the baffle, the heat-conducting plate passes open-ended one side and the lateral wall of arc extinguishing bars piece and offset, the slot has been seted up on the stopper, the notch department of slot is provided with the elastic arm, one side that the heating panel is close to the stopper is provided with the dop, the dop block is in the inside of slot.

Preferably, a side, which is attached to the arc extinguishing grid sheet, of the heat conducting plate is coated with a heat conducting paint, and the heat conducting paint is heat conducting silicone grease.

Preferably, a guide rail is mounted on the inner bottom wall of the bottom plate, and the connecting plate is slidably arranged on the guide rail.

Preferably, a bearing is arranged on the side wall of the bottom plate, and the bidirectional screw rod is rotatably connected with the bottom plate through the bearing.

Preferably, the right end of the bidirectional screw rod is connected with a knob, and the knob is arranged outside the bottom plate.

Preferably, the bottom surface of the arc-shaped baffle plate is symmetrically provided with guide grooves, and the top of the bottom plate is provided with guide blocks for sliding of the guide grooves.

Preferably, a plurality of arc extinguishing grid plates are arranged in parallel at intervals and between two arc-isolating plates.

Compared with the related art, the arc extinguishing chamber assembly structure provided by the utility model has the following beneficial effects:

1. according to the utility model, the two connecting plates can be driven to move relatively by rotating the bidirectional screw rod, so that the two connecting plates can synchronously drive the two arc-isolating plates to move relatively, a plurality of arc-extinguishing grid plates can be clamped and fixed by matching the two arc-isolating plates, the positions of the arc-extinguishing grid plates can be limited by matching the limiting blocks and the limiting holes, the arc-extinguishing grid plates are prevented from having installation deviation, and the installation efficiency is improved.

2. According to the utility model, the heat dissipation plate, the heat conduction plate and the heat dissipation fins are detachably fixed on the outer side of the arc-extinguishing chamber through the clamping connection, when the arc-extinguishing chamber is damaged or the heat dissipation structure is damaged, the arc-extinguishing chamber does not need to be replaced integrally, only part of the arc-extinguishing chamber is replaced, the arc-extinguishing chamber can be reused, the cost is greatly solved, the installation and the disassembly are convenient, time and labor are saved, the heat in the arc-extinguishing chamber can be transmitted to the heat dissipation plate through the heat conduction plate, and the heat is dissipated to the outside through the heat dissipation fins, so that the heat dissipation efficiency of the arc-extinguishing chamber is accelerated, and the practicability is higher.

Drawings

Fig. 1 is a schematic structural view of an arc extinguishing chamber assembly structure;

fig. 2 is a schematic cross-sectional view of an arc extinguishing chamber assembly structure;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

fig. 4 is an enlarged view of the structure at B in fig. 2.

Reference numerals in the drawings: 1. a bottom plate; 2. arc extinguishing grid plates; 3. a two-way screw rod; 4. a connecting plate; 5. arc-shield plate; 6. a guide rail; 7. a sliding port; 8. a limiting block; 9. a limiting hole; 10. a heat dissipation plate; 11. a heat conductive plate; 12. a heat radiation fin; 13. a slot; 14. a spring arm; 15. a knob; 16. a guide groove; 17. a guide block; 18. a chuck.

Detailed Description

Embodiments of the present utility model are described in detail below.

The first embodiment is given by fig. 1-4, an arc-extinguishing chamber assembly structure, which comprises a base plate 1, two arc-extinguishing grid plates 2 are installed at the top slidable mounting of the base plate 1, a plurality of arc-extinguishing grid plates 2 are installed between two arc-extinguishing grid plates 5, two-way screw rods 3 are installed in the internal rotation of the base plate 1, two connecting plates 4 are connected to the two-way screw rods 3 in a threaded manner, sliding ports 7 for sliding the connecting plates 4 are formed in the top wall of the base plate 1, the top ends of the connecting plates 4 penetrate through the sliding ports 7 to extend to the outside of the base plate 1 and are connected with the bottom surfaces of the arc-extinguishing grid plates 5, two limiting blocks 8 are arranged on the left side and the right side of each arc-extinguishing grid plate 2, limiting holes 9 for the limiting blocks 8 to penetrate through are formed in the arc-extinguishing grid plates 5, two connecting plates 4 can be driven to move relatively through rotating the two arc-extinguishing grid plates 5, and then two connecting plates 4 can be synchronously driven to move relatively, a plurality of arc-extinguishing grid plates 2 can be clamped and fixed through the cooperation of the limiting blocks 8 and the limiting holes 9 can limit the positions of the arc-extinguishing grid plates 2, so that installation deviation of the arc-extinguishing grid plates 2 is prevented.

In the second embodiment, given by fig. 1-4, an arc extinguishing chamber assembling structure, which comprises a bottom plate 1, two arc-extinguishing plates 5 are slidably mounted at the top of the bottom plate 1, a plurality of arc-extinguishing gate sheets 2 are mounted between the two arc-extinguishing plates 5, a bidirectional screw rod 3 is rotatably mounted in the bottom plate 1, two connecting plates 4 are connected to the bidirectional screw rod 3 in a threaded manner, a sliding opening 7 for sliding the connecting plates 4 is formed in the top wall of the bottom plate 1, the top end of the connecting plates 4 passes through the sliding opening 7 to extend to the outside of the bottom plate 1 and is connected with the bottom surface of the arc-extinguishing plates 5, two limiting blocks 8 are arranged at the left side and the right side of the arc-extinguishing plates 2, limiting holes 9 for the limiting blocks 8 to pass through are formed in the arc-extinguishing plates 5, a heat dissipation plate 10 is connected to one side of the heat dissipation plate 10 away from the arc-extinguishing plates 5, a heat conduction plate 11 is connected to one side of the arc-extinguishing plates 5, an opening for the heat conduction plate 11 to pass through is formed in the arc-extinguishing plates 5, the heat conducting plate 11 passes through one side of the opening and props against the side wall of the arc extinguishing grating sheet 2, the limit block 8 is provided with the slot 13, the slot opening of the slot 13 is provided with the elastic arm 14, one side of the heat radiating plate 10 close to the limit block 8 is provided with the clamping head 18, the clamping head 18 is clamped in the slot 13, the heat radiating plate 10, the heat conducting plate 11 and the heat radiating fins 12 are detachably fixed on the outer side of the arc extinguishing chamber body through the clamping connection and the arc extinguishing grating sheet 2, the heat radiating plate is arranged, when the arc extinguishing chamber body is damaged or the heat radiating structure is damaged, the whole replacement is not needed, only part replacement is needed, the heat radiating plate can be reused, the cost is greatly solved, the installation and the disassembly are convenient, the time and the labor are saved, the heat in the arc extinguishing chamber can be transmitted to the heat radiating plate 10 through the heat radiating plate 11, the heat radiating fins 12 are emitted to the outside, and the heat radiating efficiency of the arc extinguishing chamber is accelerated, the practicability is stronger.

In addition, in order to enhance the heat conducting performance of the heat conducting plate 11, a side, which is attached to the arc extinguishing grid sheet 2, of the heat conducting plate 11 is coated with a heat conducting paint, and the heat conducting paint is heat conducting silicone grease.

In addition, in order to improve the stability of the horizontal movement of the connection plate 4, the connection plate 4 is prevented from being deviated in the horizontal movement process, the guide rail 6 is installed at the inner bottom wall of the bottom plate 1, and the connection plate 4 is slidably disposed on the guide rail 6.

In addition, in order to improve the stability of the bidirectional screw rod 3 rotating inside the bottom plate 1, a bearing is arranged on the side wall of the bottom plate 1, and the bidirectional screw rod 3 is in rotating connection with the bottom plate 1 through the bearing.

In addition, in order to make the rotation of the bi-directional screw rod 3 more convenient, the right end of the bi-directional screw rod 3 is connected with a knob 15, and the knob 15 is disposed outside the bottom plate 1.

In addition, in order to improve stability of sliding of the arc-shaped baffle 5 and avoid shaking of the arc-shaped baffle 5 in the sliding process, guide grooves 16 are symmetrically arranged on the bottom surface of the arc-shaped baffle 5, and guide blocks 17 for sliding of the guide grooves 16 are arranged on the top of the bottom plate 1.

In addition, in order to elongate the arc, the arc can be extinguished quickly, the arc extinguishing capability of the arc extinguishing chamber is improved, and a plurality of arc extinguishing grid plates 2 are arranged in parallel at intervals between two arc baffles 5.

Working principle: during the use, a plurality of arc extinguishing bars 2 interval parallel arrangement sets up in two arc baffles 5 between then insert corresponding stopper 8 in corresponding spacing hole 9, rotate knob 15 again and make two-way lead screw 3 rotate, can drive two connecting plates 4 relative movement through rotating two-way lead screw 3, and then two connecting plates 4 can drive two arc baffles 5 relative movement in step, and then can fix a plurality of arc extinguishing bars 2 centre gripping through two arc baffles 5 cooperation, and can carry out spacingly to the position of arc extinguishing bars 2 through stopper 8 and spacing hole 9 cooperation, prevent that installation bias from appearing in arc extinguishing bars 2, the installation effectiveness has been improved, the heating panel 10 of setting up, heat conduction board 11 and radiating fin 12 pass through joint detachable to be fixed in the outside of explosion chamber, adopt the setting, damage or heat radiation structure damage when the explosion chamber, only need not whole change, can reuse, cyclic utilization, and has solved the cost greatly, and the installation is dismantled conveniently, labour saving and secondly, can be with the heat transmission in the chamber to the heating panel 10, and through radiating fin 12 to the radiating efficiency, thereby the practicality is strong.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion chamber assembly structure, includes bottom plate (1), its characterized in that, the top slidable mounting of bottom plate (1) has two flash barrier (5), two install a plurality of arc extinguishing bars piece (2) between flash barrier (5), two-way lead screw (3) are installed in the inside rotation of bottom plate (1), threaded connection has two connecting plates (4) on two-way lead screw (3), offer on the roof of bottom plate (1) and supply connecting plate (4) gliding slide opening (7), slide opening (7) are passed on connecting plate (4) top and extend to the outside of bottom plate (1) and be connected with the bottom surface of flash barrier (5), arc extinguishing bars piece (2) left and right sides all are provided with two stopper (8), offer spacing hole (9) that supply stopper (8) to pass on flash barrier (5).

2. The arc extinguishing chamber assembly structure according to claim 1, characterized in that the outside block of stopper (8) is connected with heating panel (10), one side that baffle (5) was kept away from to heating panel (10) is connected with radiating fin (12), one side that baffle (10) are close to baffle (5) is connected with heat conduction board (11), offer the opening that supplies heat conduction board (11) to pass on baffle (5), heat conduction board (11) pass open-ended one side and arc extinguishing grid piece (2) lateral wall offset, slot (13) have been offered on stopper (8), slot (13) notch department is provided with elastic arm (14), one side that baffle (10) are close to stopper (8) is provided with chuck (18), chuck (18) block is in the inside of slot (13).

3. The arc extinguishing chamber assembly structure according to claim 2, wherein a side, which is attached to the arc extinguishing gate sheet (2), of the heat conducting plate (11) is coated with a heat conducting paint, and the heat conducting paint is heat conducting silicone grease.

4. An arc extinguishing chamber assembling structure according to claim 1, characterized in that the bottom plate (1) is provided with a guide rail (6) on an inner bottom wall thereof, and the connecting plate (4) is slidably provided on the guide rail (6).

5. The arc extinguishing chamber assembly structure according to claim 1, wherein bearings are arranged on the side walls of the base plate (1), and the bidirectional screw rod (3) is rotatably connected with the base plate (1) through the bearings.

6. The arc extinguishing chamber assembly structure according to claim 1, wherein the right end of the bidirectional screw rod (3) is connected with a knob (15), and the knob (15) is arranged outside the bottom plate (1).

7. The arc extinguishing chamber assembly structure according to claim 1, wherein the bottom surface of the arc barrier (5) is symmetrically provided with guide grooves (16), and the top of the bottom plate (1) is provided with guide blocks (17) for sliding the guide grooves (16).

8. An arc chute assembly structure according to claim 1, wherein a plurality of said arc chute sheets (2) are arranged in spaced parallel relationship between two of said arc baffles (5).