CN219370891U - Small-sized vacuum arc-extinguishing chamber of circuit breaker - Google Patents

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a small vacuum arc-extinguishing chamber of a circuit breaker, which comprises an arc-extinguishing chamber body, wherein a fixed frame is arranged at the rear side of the arc-extinguishing chamber body, a fixed base is arranged at the center of the bottom of the fixed frame, the arc-extinguishing chamber body is fixed on the surface of the fixed base, a protective net is sleeved on the surface of the arc-extinguishing chamber body, the upper end and the lower end of the protective net are fixedly connected with a frame, the upper end and the lower end of the side wall of the fixed frame are respectively provided with a movable frame, and the movable frames are fixedly connected with the frame; according to the utility model, the protective net and the arc-extinguishing chamber body are arranged separately, the protective net is sleeved on the surface of the arc-extinguishing chamber body, and the vacuum arc-extinguishing chamber can be directly pulled out from the protective net when the vacuum arc-extinguishing chamber is assembled and disassembled, so that only one protective net is needed, and the protective net is not needed to be arranged on each vacuum arc-extinguishing chamber, thereby saving the cost.

Description

Small-sized vacuum arc-extinguishing chamber of circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a small vacuum arc-extinguishing chamber of a circuit breaker.

Background

The vacuum circuit breaker mainly utilizes the explosion chamber to realize the disconnection of circuit, wherein the explosion chamber comprises ceramic shell, fixed end apron and moving end apron together and seals vacuum environment, drives between moving conductor and the fixed conductor at operating device and separates, can realize the arc extinction.

In the prior art, as disclosed in application number 2019220783604, an explosion-proof vacuum circuit breaker arc extinguishing chamber specifically comprises a ceramic shell, a fixed end cover plate, a movable end cover plate, a conductor, a contact, a corrugated pipe, a circular ring and a protective net; the ceramic shell can be prevented from cracking and splashing, and part of explosion kinetic energy can be absorbed at the same time; the buffering and energy absorbing effects are enhanced.

However, in the application document disclosed in the application number 2019220783604, the protection net is fixed on the vacuum arc-extinguishing chambers, and the probability of explosion of the vacuum arc-extinguishing chambers is obviously smaller than the probability of damage of the vacuum arc-extinguishing chambers, and the cost is increased due to the arrangement of the protection net on each vacuum arc-extinguishing chamber.

Disclosure of Invention

The utility model aims to provide a small vacuum arc-extinguishing chamber of a circuit breaker, which solves the problems in the background technology.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a miniature vacuum interrupter of circuit breaker, includes the explosion chamber body, the rear side of explosion chamber body is provided with the mount, and the bottom center department of mount is provided with unable adjustment base, and the explosion chamber body is fixed in unable adjustment base's surface, and the surface cover of explosion chamber body is equipped with the protection network, and the upper and lower both ends of protection network are all fixed to link to each other with the frame, and both ends all are provided with the fly frame about the lateral wall of mount, and the fly frame links to each other with the frame is fixed.

Further, the explosion chamber body includes porcelain shell, and the inner chamber bottom of porcelain shell is provided with quiet conducting rod, and the top of quiet conducting rod is fixed to be connected with the static contact, and the inner chamber top of porcelain shell is provided with the movable conducting rod, and the surface of movable conducting rod is provided with the bellows, and the bottom fixed of movable conducting rod links to each other there is the movable contact.

Further, the side wall of the fixed frame is provided with a movable groove, a sliding rod is arranged in the movable groove, the movable frame is sleeved on the surface of the sliding rod, and the movable frame is connected with the sliding rod in a sliding manner.

Further, the movable frame comprises a movable slide block, the movable slide block is connected with the slide rod in a sliding manner, the front end of the movable slide block is fixedly connected with a connecting rod, the inner side wall of the connecting rod is fixedly connected with a fixed block, the fixed block is fixedly connected with the frame, one side of the movable slide block is provided with a limiting spring, the limiting spring is sleeved on the surface of the slide rod, and the movable slide block is connected with the fixed frame through the limiting spring.

Further, one end of the limiting spring, which is far away from the movable slide block, is provided with a limiting slide block, the limiting slide block is connected with the slide rod in a sliding manner, the surface of the limiting slide block is fixedly connected with a locking mechanism, and the limiting slide block is fixedly connected with the fixing frame through the locking mechanism.

Further, locking mechanism includes the mounting panel, and the mounting panel is fixed in the surface of spacing slider, and the lateral wall of mounting panel is provided with the locking lever, and the locking lever links to each other with the mounting panel screw thread, and the one end fixed connection of locking lever has fixed handle.

The utility model has the beneficial effects that:

1. according to the utility model, the protective net and the arc-extinguishing chamber body are arranged separately, the protective net is sleeved on the surface of the arc-extinguishing chamber body, and the vacuum arc-extinguishing chamber can be directly extracted from the protective net when the vacuum arc-extinguishing chamber is assembled and disassembled, so that only one protective net is needed, and the protective net is not needed to be arranged on each vacuum arc-extinguishing chamber, thereby saving the cost;

2. the adjustable movable frame is arranged, so that the types and the sizes of the vacuum arc-extinguishing chambers are different, and the limit sliding blocks can be moved up and down to adapt to the vacuum arc-extinguishing chambers with different sizes, and then the limit sliding blocks are fixed by the locking mechanism, so that the whole vacuum arc-extinguishing chamber can be wrapped by the protective screen.

Drawings

In order to more clearly illustrate the embodiments of the present utility model 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, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;

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

fig. 2 is a schematic structural view of an arc extinguishing chamber body according to the present utility model;

FIG. 3 is a schematic view of the structure of the fixing frame of the present utility model;

fig. 4 is a schematic diagram showing the connection of the movable frame and the locking mechanism.

Reference numerals in the drawings are as follows:

1. an arc extinguishing chamber body; 11. a porcelain shell; 12. a static conductive rod; 13. a stationary contact; 14. a movable conductive rod; 15. a bellows; 16. a moving contact; 2. a fixing frame; 21. a movable groove; 22. a slide bar; 3. a fixed base; 4. a protective net; 41. a frame; 5. a movable frame; 51. moving the slide block; 52. a connecting rod; 53. a fixed block; 54. a limit sliding block; 55. a limit spring; 6. a locking mechanism; 61. a mounting plate; 62. a locking lever; 63. the handle is fixed.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a miniature vacuum arc-extinguishing chamber of circuit breaker, including explosion chamber body 1, the rear side of explosion chamber body 1 is provided with mount 2, the bottom center department of mount 2 is provided with unable adjustment base 3, and explosion chamber body 1 is fixed in unable adjustment base 3's surface, the surface cover of explosion chamber body 1 is equipped with protection network 4, protection network 4 and explosion chamber body 1 are the separation, the upper and lower both ends of protection network 4 are all fixed and are linked with frame 41, both ends all are provided with movable frame 5 about the lateral wall of mount 2, movable frame 5 links to each other with frame 41 are fixed, protection network 4 is fixed on mount 2, be installed in addition, like this when loading and unloading explosion chamber body 1 also need not be followed to change protection network 4 together, can save a lot of cost.

The explosion chamber body 1 includes porcelain shell 11, and porcelain shell 11's inner chamber bottom is provided with quiet conducting rod 12, and the top of quiet conducting rod 12 is fixed to be connected with quiet contact 13, and porcelain shell 11's inner chamber top is provided with movable conducting rod 14, and movable conducting rod 14's surface is provided with bellows 15, and movable conducting rod 14's bottom fixed link to each other has movable contact 16.

The lateral wall of mount 2 has seted up movable groove 21, is provided with slide bar 22 in the movable groove 21, and movable frame 5 cover is in the surface of slide bar 22, and movable frame 5 and slide bar 22 link to each other, and the movable frame 5 of upper and lower both sides is used for supporting the frame 41 at the upper and lower both ends of protection network 4 to movable frame 5 is movable, after producing the explosion like this, protection network 4 atress outwards expands, can prevent that the piece from splashing outwards, and this time, movable frame 5 also can be pulled, moves towards central department, unloads the power for protection network 4.

The movable frame 5 comprises a movable slide block 51, the movable slide block 51 is slidably connected with a slide rod 22, the front end of the movable slide block 51 is fixedly connected with a connecting rod 52, the inner side wall of the connecting rod 52 is fixedly connected with a fixed block 53, the fixed block 53 is fixedly connected with the frame 41, one side of the movable slide block 51 is provided with a limiting spring 55, the limiting spring 55 is sleeved on the surface of the slide rod 22, the movable slide block 51 is connected with a fixed frame 2 through the limiting spring 55, the movable slide blocks 51 on the upper side and the lower side are hung through the limiting spring 55, the movable slide block 51 can be limited, and meanwhile, when explosion happens, the movable slide block 51 moves towards the center, and the limiting spring 55 can be stretched to expand the protective net 4.

The limit spring 55 is provided with limit slider 54 far away from the one end of removal slider 51, limit slider 54 links to each other with slide bar 22 slip, limit slider 54's fixed surface links to each other locking mechanism 6, and limit slider 54 passes through locking mechanism 6 and fixed link to each other with mount 2, because the size of vacuum interrupter is many different, in order to adapt to the vacuum interrupter of equidimension, the removal slider 51 of upper and lower both sides can be done the adaptation and be adjusted, this time, just can be through the limit slider 54 of removal upper and lower both sides, thereby adjust the interval between two upper and lower frames 41, guarantee that protection network 4 can wrap up the vacuum interrupter completely, after removing limit slider 54 to suitable position, just can be fixed limit slider 54 through locking mechanism 6.

The locking mechanism 6 comprises a mounting plate 61, the mounting plate 61 is fixed on the surface of the limit sliding block 54, a locking rod 62 is arranged on the side wall of the mounting plate 61, the locking rod 62 is connected with the mounting plate 61 through threads, a fixing handle 63 is fixedly connected with one end of the locking rod 62, and the locking rod 62 can be abutted against the side wall of the fixing frame 2 through screwing the locking rod 62 in county, so that the limit sliding block 54 is fixed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The utility model provides a miniature vacuum interrupter of circuit breaker, includes explosion chamber body (1), its characterized in that, the rear side of explosion chamber body (1) is provided with mount (2), the bottom center department of mount (2) is provided with unable adjustment base (3), and explosion chamber body (1) are fixed in the surface of unable adjustment base (3), the surface cover of explosion chamber body (1) is equipped with protection network (4), the upper and lower both ends of protection network (4) are all fixed to link to each other with frame (41), both ends all are provided with movable frame (5) about the lateral wall of mount (2), movable frame (5) are fixed to link to each other with frame (41).

2. The miniature vacuum arc-extinguishing chamber of a circuit breaker according to claim 1, characterized in that the arc-extinguishing chamber body (1) comprises a porcelain shell (11), a static conductive rod (12) is arranged at the bottom of an inner cavity of the porcelain shell (11), a static contact (13) is fixedly connected to the top end of the static conductive rod (12), a movable conductive rod (14) is arranged at the top of the inner cavity of the porcelain shell (11), a corrugated pipe (15) is arranged on the surface of the movable conductive rod (14), and a movable contact (16) is fixedly connected to the bottom end of the movable conductive rod (14).

3. The miniature vacuum interrupter of a circuit breaker according to claim 1, wherein a movable groove (21) is provided on a side wall of the fixed frame (2), a slide bar (22) is provided in the movable groove (21), the movable frame (5) is sleeved on a surface of the slide bar (22), and the movable frame (5) is slidably connected with the slide bar (22).

4. A miniature vacuum interrupter of a circuit breaker according to claim 3, wherein the movable frame (5) comprises a movable slide block (51), the movable slide block (51) is slidably connected with a slide bar (22), a connecting rod (52) is fixedly connected with the front end of the movable slide block (51), a fixed block (53) is fixedly connected with the inner side wall of the connecting rod (52), the fixed block (53) is fixedly connected with the frame (41), a limit spring (55) is arranged on one side of the movable slide block (51), the limit spring (55) is sleeved on the surface of the slide bar (22), and the movable slide block (51) is connected with the fixed frame (2) through the limit spring (55).

5. The miniature vacuum interrupter of a circuit breaker according to claim 4, wherein a limit slider (54) is provided at an end of the limit spring (55) away from the movable slider (51), the limit slider (54) is slidably connected with the slide bar (22), a surface of the limit slider (54) is fixedly connected with the locking mechanism (6), and the limit slider (54) is fixedly connected with the fixing frame (2) through the locking mechanism (6).

6. The miniature vacuum interrupter of a circuit breaker according to claim 5, wherein the locking mechanism (6) comprises a mounting plate (61), the mounting plate (61) is fixed on the surface of the limit slider (54), a locking rod (62) is arranged on the side wall of the mounting plate (61), the locking rod (62) is connected with the mounting plate (61) through threads, and a fixed handle (63) is fixedly connected with one end of the locking rod (62).