CN213483677U

CN213483677U - Electronic molded case circuit breaker

Info

Publication number: CN213483677U
Application number: CN202023131242.4U
Authority: CN
Inventors: 王帅; 余晓光
Original assignee: Nanjing Institute of Railway Technology
Current assignee: Nanjing Institute of Railway Technology
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-06-18
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to an electronic molded case circuit breaker, which comprises a circuit breaker body; the circuit breaker comprises a breaker body and is characterized by further comprising a base, a fixing frame and a U-shaped frame, wherein the bottom end of the breaker body is fixedly connected with a cross-shaped strip, the fixing frame is fixedly connected onto the base, the fixing frame is uniformly provided with four positioning grooves, the positioning grooves are matched with the cross-shaped strip for use, and two ends of the cross-shaped strip are symmetrically and fixedly connected with four racks; the positions of the corresponding racks in the fixed frame are rotatably connected with gears through rotating rods; during installation, the cross bar is slid into the fixed frame, then the first electromagnet and the second electromagnet are electrified, and during disassembly, the first electromagnet and the second electromagnet are powered off, and then the breaker body is pulled out; therefore, the breaker body is convenient to disassemble and assemble, only the first electromagnet and the second electromagnet need to be powered off or electrified during disassembly and assembly, the disassembly and assembly time is reduced, and the working efficiency is improved.

Description

Electronic molded case circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field specifically is an electronic type moulded case circuit breaker.

Background

Electronic molded case circuit breakers are generally classified into: a circuit breaker for motor protection for protecting overload and short circuit of the motor; the circuit breaker for distribution protection is used in distribution network for distributing electric energy and for protecting overload and short circuit of line and power supply equipment, and also can be used for infrequent starting of motor and infrequent switching of line. The electronic molded case circuit breaker is also called as a device type circuit breaker, all parts are sealed in a plastic shell, and an auxiliary contact, an under-voltage release, a shunt release and the like are modularized;

when the existing electronic molded case circuit breaker is installed, a certain number of screws are sometimes adopted to fix the electronic molded case circuit breaker, so that a great deal of time is consumed during installation and disassembly in the fixing mode, and the electronic molded case circuit breaker is inconvenient to disassemble and assemble;

in summary, the present application provides an electronic molded case circuit breaker to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an electronic type moulded case circuit breaker to solve the problem that proposes in the above-mentioned background art, the utility model discloses convenient to use, easy operation, systematic height, the practicality is strong.

In order to achieve the above object, the utility model provides a following technical scheme: an electronic molded case circuit breaker includes a breaker body; the circuit breaker comprises a breaker body and is characterized by further comprising a base, a fixing frame and a U-shaped frame, wherein a cross bar is fixedly connected to the bottom end of the breaker body, the fixing frame is fixedly connected to the base, four positioning grooves are uniformly formed in the fixing frame and matched with the cross bar for use, and four racks are symmetrically and fixedly connected to two ends of the cross bar; the positions of the corresponding racks in the fixed frame are rotatably connected with gears through rotating rods, and one end of each rotating rod penetrates through the fixed frame and then is fixedly connected with the rotary table; the two ends of the fixing frame are fixedly connected with U-shaped frames, the inner walls of the U-shaped frames are fixedly connected with second electromagnets, the inner walls of the U-shaped frames are also fixedly connected with guide rods, the guide rods penetrate through and are connected with the sliding plate in a sliding mode, and one end, close to the second electromagnets, of the sliding plate is fixedly connected with a first electromagnet; the slide other end still fixedly connected with inserted bar, the equal fixedly connected with jack in position of the inserted bar that the carousel corresponds, still fixedly connected with spring between slide and the U-shaped frame.

Preferably, the inner wall of the U-shaped frame is symmetrically and fixedly connected with two second electromagnets.

Preferably, the inner wall of the U-shaped frame is symmetrically and fixedly connected with two guide rods.

Preferably, the U-shaped frame is fixedly welded on the fixing frame.

Preferably, the rotating rod is rotatably connected to the fixed frame through a bearing.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a setting up the mutual cooperation of circuit breaker body, cross strip, rack, gear, carousel, first electro-magnet and second electro-magnet, during the installation, slide the cross strip into to fixed frame, then to first electro-magnet and second electro-magnet circular telegram can, during the dismantlement, to first electro-magnet and second electro-magnet outage, then extract the circuit breaker body can; therefore, the breaker body is convenient to disassemble and assemble, only the first electromagnet and the second electromagnet need to be powered off or electrified during disassembly and assembly, the disassembly and assembly time is reduced, and the working efficiency is improved.

Drawings

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

fig. 2 is a schematic view of the structure of the middle fixing frame of the present invention;

FIG. 3 is a schematic view of the U-shaped frame of the present invention;

fig. 4 is a schematic side view of the cross bar of the present invention.

Reference numerals: 1. a circuit breaker body; 2. a base; 3. a cross bar; 4. a fixing frame; 5. positioning a groove; 6. a rack; 7. a gear; 8. a rotating rod; 9. a turntable; 10. a U-shaped frame; 11. a slide plate; 12. inserting a rod; 13. a guide bar; 14. a spring; 15. a first electromagnet; 16. a second electromagnet.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an electronic molded case circuit breaker includes a circuit breaker body 1; the circuit breaker comprises a breaker body 1 and is characterized by further comprising a base 2, a fixing frame 4 and a U-shaped frame 10, wherein a cross bar 3 is fixedly connected to the bottom end of the breaker body 1, the fixing frame 4 is fixedly connected to the base 2, four positioning grooves 5 are uniformly formed in the fixing frame 4, the positioning grooves 5 are matched with the cross bar 3 for use, and four racks 6 are symmetrically and fixedly connected to two ends of the cross bar 3;

the positions of the corresponding racks 6 in the fixed frame 4 are rotatably connected with gears 7 through rotating rods 8, and one end of each rotating rod 8 penetrates through the fixed frame 4 and then is fixedly connected with a rotary table 9; the two ends of the fixed frame 4 are fixedly connected with U-shaped frames 10, the inner walls of the U-shaped frames 10 are fixedly connected with second electromagnets 16, the inner walls of the U-shaped frames 10 are also fixedly connected with guide rods 13, the guide rods 13 penetrate through and are connected to the sliding plate 11 in a sliding mode, and one end, close to the second electromagnets 16, of the sliding plate 11 is fixedly connected with a first electromagnet 15; the other end of the sliding plate 11 is also fixedly connected with an inserted bar 12, the positions of the inserted bars 12 corresponding to the turntables 9 are all fixedly connected with jacks, and a spring 14 is also fixedly connected between the sliding plate 11 and the U-shaped frame 10;

wherein, the cross bar 3 is inserted into the positioning groove 5;

wherein, the base 2 is fixedly arranged on the equipment through bolts;

wherein, the gear 7 is matched with the rack 6 for use;

wherein, the same poles of the first electromagnet 15 and the second electromagnet 16 are arranged in a repulsion manner;

two second electromagnets 16 are symmetrically and fixedly connected to the inner wall of the U-shaped frame 10;

the inner wall of the U-shaped frame 10 is symmetrically and fixedly connected with two guide rods 13;

wherein, the guide rod 13 plays a role in guiding the sliding plate 11;

the U-shaped frame 10 is fixedly welded on the fixed frame 4;

the rotating rod 8 is rotatably connected to the fixed frame 4 through a bearing;

the working principle is as follows: when the circuit breaker is used, firstly, the base 2 is fixedly installed on equipment to be protected through bolts, then the cross bars 3 on the back of the circuit breaker body 1 are inserted into the four positioning grooves 5 on the fixing frame 4 to be positioned, the cross bars 3 slide downwards on the fixing frame 4, meanwhile, the racks 6 drive the gears 7 to rotate, the gears 7 drive the rotary disc 9 to rotate through the rotary bars 8, when the cross bars 3 completely enter the fixing frame 4, the insertion holes in the rotary disc 9 just correspond to the insertion rods 12, then the first electromagnets 15 and the second electromagnets 16 are electrified, so that the first electromagnets 15 and the second electromagnets 16 are electrified to generate magnetism, and the homopolarity of the first electromagnets 15 and the second electromagnets 16 is repulsive force, so that the sliding plate 11 is pushed by repulsive force to slide until the insertion rods 12 are inserted into the insertion holes in the rotary disc 9; therefore, the rotation of the rotary table 9 and the gear 7 can be limited, so that the circuit breaker body 1 cannot slide out, the circuit breaker body 1 can be quickly fixed, when the circuit breaker needs to be disassembled, the first electromagnet 15 and the second electromagnet 16 are powered off, and then the circuit breaker body 1 is pulled out; therefore, the breaker body 1 is convenient to disassemble and assemble, only the first electromagnet 15 and the second electromagnet 16 need to be powered off or electrified during disassembly and assembly, the disassembly and assembly time is reduced, and the working efficiency is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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. An electronic molded case circuit breaker includes a breaker body (1); the method is characterized in that: the circuit breaker is characterized by further comprising a base (2), a fixing frame (4) and a U-shaped frame (10), wherein a cross-shaped bar (3) is fixedly connected to the bottom end of the circuit breaker body (1), the fixing frame (4) is fixedly connected to the base (2), four positioning grooves (5) are uniformly formed in the fixing frame (4), the positioning grooves (5) are matched with the cross-shaped bar (3) for use, and four racks (6) are symmetrically and fixedly connected to two ends of the cross-shaped bar (3);

the positions of the corresponding racks (6) in the fixed frame (4) are rotatably connected with gears (7) through rotating rods (8), and one end of each rotating rod (8) penetrates through the fixed frame (4) and then is fixedly connected with a turntable (9); the two ends of the fixed frame (4) are fixedly connected with U-shaped frames (10), the inner walls of the U-shaped frames (10) are fixedly connected with second electromagnets (16), the inner walls of the U-shaped frames (10) are also fixedly connected with guide rods (13), the guide rods (13) penetrate through and are connected to the sliding plate (11) in a sliding mode, and one end, close to the second electromagnets (16), of the sliding plate (11) is fixedly connected with a first electromagnet (15); the other end of the sliding plate (11) is fixedly connected with an inserting rod (12), the position of the inserting rod (12) corresponding to the rotary table (9) is fixedly connected with an inserting hole, and a spring (14) is fixedly connected between the sliding plate (11) and the U-shaped frame (10).

2. The electronic molded case circuit breaker according to claim 1, wherein: and the inner wall of the U-shaped frame (10) is symmetrically and fixedly connected with two second electromagnets (16).

3. The electronic molded case circuit breaker according to claim 1, wherein: the inner wall of the U-shaped frame (10) is symmetrically and fixedly connected with two guide rods (13).

4. The electronic molded case circuit breaker according to claim 1, wherein: the U-shaped frame (10) is fixedly welded on the fixed frame (4).

5. The electronic molded case circuit breaker according to claim 1, wherein: the rotating rod (8) is rotatably connected to the fixed frame (4) through a bearing.