CN219303548U

CN219303548U - Miniature indoor vacuum circuit breaker

Info

Publication number: CN219303548U
Application number: CN202320386284.7U
Authority: CN
Inventors: 郑岳双; 汪绍华
Original assignee: Chaorui Electric Co ltd
Current assignee: Chaorui Electric Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-04
Anticipated expiration: 2033-02-24

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a miniaturized indoor vacuum circuit breaker which comprises a chassis truck, wherein a shell is formed by a left sealing plate, a right sealing plate and a middle sealing plate, an aviation socket is arranged on the upper side of the front surface of the middle sealing plate, an operation panel is arranged on the front side of the middle sealing plate, a manual energy storage hole is formed in the front upper side of the operation panel, a manual switch-on button is arranged on the operation panel, a manual switch-off button is arranged on the operation panel and below the energy storage indication hole, an insulating cylinder is arranged on the rear upper side of the chassis truck, the circuit breaker is of a three-phase strut type structure, an epoxy resin solid-sealed pole is adopted, the vacuum arc extinguishing performance with extremely high insulating strength and high segmentation capability is achieved, an improved modularized spring operation mechanism is adopted as energy driving of switching-on and switching-off of a circuit breaker contact, the mechanical performance is more reliable, the service life is longer, and the circuit breaker is widely used in indoor high-voltage switch cabinets.

Description

Miniature indoor vacuum circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a miniaturized indoor vacuum circuit breaker.

Background

The insulation capability of the insulation cylinder of the existing vacuum circuit breaker is deteriorated after long-time use, and the whole mechanical structure is controlled more complicated, and the reliability is lower, so that a miniaturized indoor vacuum circuit breaker is required to improve the above problems.

Disclosure of Invention

The utility model aims to provide a miniaturized indoor vacuum circuit breaker so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an indoor vacuum circuit breaker of miniaturization, includes the chassis car, the tip left side of chassis car is provided with left shrouding, the terminal surface right side of chassis car is provided with right shrouding, the front side of left shrouding and right shrouding is provided with well shrouding, left shrouding, right shrouding, well shrouding constitute the casing, the front upside of well shrouding is provided with the aviation socket, the front side of well shrouding is provided with operating panel, operating panel's front upside is provided with manual energy storage hole, operating panel is last to be provided with manual switch-on button, operating panel is last and be located manual switch-on button's below is provided with the energy storage pilot hole, operating panel's front left side is provided with the switch-on pilot hole, operating panel is last and be located the below of switch-on pilot hole and be provided with the counter, the rear upside of chassis car is provided with the insulating cylinder, the rear upside of insulating cylinder is provided with the contact arm, the front upside of contact arm is provided with the manual switch-on the side of operating panel is provided with the inside of a wire spring, the inside casing is provided with the inside of a casing, the inside of a casing is provided with the inside of a drive, the inside of a casing is provided with the inside of a drive motor.

As a preferable scheme of the utility model, the outer wall of the insulating cylinder is provided with epoxy resin.

As a preferable scheme of the utility model, the inside of the insulating cylinder is provided with soft connection between the vacuum arc extinguishing chamber and the insulating pull rod.

As a preferable scheme of the utility model, the back surface of the chassis is provided with a valve pushing plate.

As a preferable scheme of the utility model, the transmission plate is connected with the shell by adopting a connecting shaft, and one end of the brake separating tension spring, which is far away from the transmission plate, is arranged on the upper rear side of the inside of the shell.

As a preferable scheme of the utility model, the rear end of the transmission plate and the lower end of the insulating cylinder are correspondingly provided with a top shaft.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the breaker is of a three-phase support column structure, the epoxy resin solid-sealed polar pole is adopted, the vacuum arc extinguishing performance with extremely high insulating strength and high sectioning capability is realized, and meanwhile, the improved modularized spring operating mechanism is adopted as energy driving for closing and opening the breaker contact, so that the mechanical performance is more reliable, the service life is longer, and the breaker is widely matched and used in an indoor high-voltage switch cabinet.

Drawings

FIG. 1 is a schematic diagram of an axial structure of the present utility model;

FIG. 2 is a schematic diagram of a front view structure of the present utility model;

fig. 3 is a schematic side sectional view of the present utility model.

In the figure: 1. chassis truck; 101. a housing; 2. a left sealing plate; 3. a right sealing plate; 4. a middle sealing plate; 5. aviation socket; 6. an operation panel; 7. a manual energy storage hole; 8. a manual closing button; 9. an energy storage indicating hole; 10. a manual brake release button; 11. a brake opening indicating hole; 12. a counter; 13. an insulating cylinder; 14. a contact arm; 15. plum blossom contact; 16. a vacuum arc extinguishing chamber; 17. an insulating pull rod; 18. a main shaft; 19. a driving plate; 20. a drive plate; 21. an energy storage rod; 22. closing buckle plate; 23. a cam; 24. a brake separating tension spring; 25. an epoxy resin; 26. soft connection; 27. a valve pushing plate; 28. and (5) a top shaft.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

In order to facilitate an understanding of the utility model, several embodiments of the utility model will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Examples: referring to fig. 1-3, a miniaturized indoor vacuum circuit breaker comprises a chassis 1, a left sealing plate 2 is arranged on the left side of the end part of the chassis 1, a right sealing plate 3 is arranged on the right side of the end surface of the chassis 1, a middle sealing plate 4 is arranged on the front sides of the left sealing plate 2 and the right sealing plate 3, the left sealing plate 2, the right sealing plate 3 and the middle sealing plate 4 form a shell 101, an aviation socket 5 is arranged on the front upper side of the middle sealing plate 4, an operation panel 6 is arranged on the front side of the middle sealing plate 4, a manual energy storage hole 7 is arranged on the front upper side of the operation panel 6, a manual closing button 8 is arranged on the operation panel 6 and positioned below the manual closing button 8, an energy storage indicating hole 9 is arranged on the operation panel 6 and positioned below the energy storage indicating hole 9, a manual opening button 10 is arranged on the front left side of the operation panel 6, the counter 12 is arranged on the operation panel 6 and below the opening indicating hole 11, the insulating cylinder 13 is arranged on the upper rear side of the chassis truck 1, the contact arm 14 is arranged on the upper rear side of the insulating cylinder 13, the quincuncial contact 15 is arranged at the rear end of the contact arm 14, the vacuum arc extinguishing chamber 16 is arranged on the upper inner side of the insulating cylinder 13, the insulating pull rod 17 is arranged on the lower inner side of the insulating cylinder 13, the main shaft 18 is arranged on the lower inner front side of the shell 101, the driving plate 19 is arranged on the main shaft 18, the transmission plate 20 is arranged at the lower end of the driving plate 19, the energy storage rod 21 is arranged in the shell 101 corresponding to the manual energy storage hole 7, the closing pinch plate 22 is arranged on the upper inner front side of the shell 101, the cam 23 is arranged in the shell 101 corresponding to the closing pinch plate 22, and the opening tension spring 24 is arranged on the transmission plate 20. The manual switch-on button 8 and the manual switch-off button 10 on the operation panel 6 are used for switching on and switching off the circuit breaker, the switch-off state of the circuit breaker is displayed through the switch-off indication hole 11, the energy storage of the circuit breaker is controlled through the energy storage rod 21, meanwhile, the energy storage indication hole 9 is used for indicating the energy storage state, the switch-on pinch plate 22 is regulated and controlled through the manual switch-on button 8, the cam 23 follows the operation under the action of the switch-on pinch plate 22, the driving plate 19 and the driving plate 20 are driven to operate, the switch-on operation of the circuit breaker is realized, the circuit breaker is of a three-phase strut type structure, the epoxy resin 25 is adopted for fixedly sealing the pole, the high insulation strength and the high segmentation capability are realized, the improved modularized spring operation mechanism is adopted as the energy drive of the switch-on and switch-off of the circuit breaker contact, the mechanical property is more reliable, the service life is longer, and the circuit breaker is widely matched to be used in an indoor high-voltage switch cabinet.

In this embodiment, an epoxy resin 25 is disposed on the outer wall of the insulating cylinder 13, a soft connection 26 is disposed between the vacuum arc extinguishing chamber 16 and the insulating pull rod 17 in the insulating cylinder 13, a valve push plate 27 is disposed on the back of the chassis 1, the transmission plate 20 is connected with the housing 101 by adopting a connecting shaft, one end of the opening tension spring 24, which is far away from the transmission plate 20, is disposed on the upper rear side of the interior of the housing 101, and a top shaft 28 is disposed at the rear end of the transmission plate 20 corresponding to the lower end of the insulating cylinder 13. The insulating cylinder 13 can have a good insulating effect through the epoxy resin 25, and the operation and control of the insulating pull rod 17 inside the insulating cylinder 13 can be more convenient through the arrangement of the top shaft 28.

Working principle: when the miniature indoor vacuum circuit breaker is used, the manual closing button 8 and the manual opening button 10 on the operation panel 6 are used for closing and opening the circuit breaker, the opening state of the circuit breaker is displayed through the opening indication hole 11, the energy storage rod 21 is used for controlling the energy storage of the circuit breaker, meanwhile, the energy storage indication hole 9 is used for indicating the energy storage state, the manual closing button 8 is used for regulating and controlling the closing pinch plate 22, the cam 23 is used for following the operation under the action of the closing pinch plate 22, the driving plate 19 and the transmission plate 20 are used for driving operation, the closing operation of the circuit breaker is realized, the circuit breaker is of a three-phase strut type structure, the epoxy resin 25 is used for fixedly sealing a pole column, the high insulation strength and the vacuum arc extinguishing performance with high segmentation capability are realized, meanwhile, the improved modularized spring operation mechanism is used for driving the closing and opening energy of the circuit breaker contact, the mechanical performance is more reliable, the service life is longer, the insulation cylinder 13 can be better in a high-voltage switch cabinet through the epoxy resin 25, and the insulation cylinder 13 can be controlled and operated more conveniently and conveniently through the setting of the top shaft 28.

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 a indoor vacuum circuit breaker of miniaturization, includes chassis car (1), its characterized in that: the end left side of chassis car (1) is provided with left shrouding (2), the terminal surface right side of chassis car (1) is provided with right shrouding (3), the front side of left shrouding (2) and right shrouding (3) is provided with well shrouding (4), the casing (101) is constituteed to left shrouding (2), right shrouding (3), well shrouding (4), the front upside of well shrouding (4) is provided with aviation socket (5), the front side of well shrouding (4) is provided with operating panel (6), the front upside of operating panel (6) is provided with manual energy storage hole (7), operating panel (6) are last to be provided with manual closing button (8), operating panel (6) are last and be located the below of manual closing button (8) and be provided with manual brake opening button (10), the front side of operating panel (6) is provided with brake opening (11), operating panel (6) are last and be located the below of energy storage button (9) and be provided with insulating cylinder (13) on the back side (13), the utility model discloses a vacuum interrupter, including casing (101) and switch-off extension spring (24), including contact arm (14) and switch-off extension spring, the rear end of contact arm (14) is provided with plum blossom contact (15), the inside upside of insulating tube (13) is provided with vacuum interrupter (16), the inside downside of insulating tube (13) is provided with insulating pull rod (17), the inside front downside of casing (101) is provided with main shaft (18), install drive plate (19) on main shaft (18), the lower extreme of drive plate (19) is provided with drive plate (20), the inside of casing (101) is provided with energy storage pole (21) corresponding with manual energy storage hole (7), the inside front upside of casing (101) is provided with switch-on pinch plate (22), the inside of casing (101) is provided with cam (23) corresponding with switch-on pinch plate (22), install on drive plate (20).

2. A miniaturized indoor vacuum circuit breaker according to claim 1, wherein: an epoxy resin (25) is arranged on the outer wall of the insulating cylinder (13).

3. A miniaturized indoor vacuum circuit breaker according to claim 1, wherein: a soft connection (26) is arranged between the vacuum arc-extinguishing chamber (16) and the insulating pull rod (17) in the insulating cylinder (13).

4. A miniaturized indoor vacuum circuit breaker according to claim 1, wherein: a valve pushing plate (27) is arranged on the back surface of the chassis (1).

5. A miniaturized indoor vacuum circuit breaker according to claim 1, wherein: the transmission plate (20) is connected with the shell (101) by adopting a connecting shaft, and one end of the brake separating tension spring (24) far away from the transmission plate (20) is arranged on the upper rear side of the inside of the shell (101).

6. A miniaturized indoor vacuum circuit breaker according to claim 1, wherein: the rear end of the transmission plate (20) and the lower end of the insulating cylinder (13) are correspondingly provided with a top shaft (28).