CN218826921U

CN218826921U - Circuit breaker

Info

Publication number: CN218826921U
Application number: CN202223481631.9U
Authority: CN
Inventors: 王豪; 倪金松; 陆易
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-07
Anticipated expiration: 2032-12-22

Abstract

A circuit breaker belongs to the technical field of medium-voltage electrical appliances. Including the frame and set up operating device and the combined floodgate electromagnet assembly inside the frame, the frame in be provided with first compartment and adjacent second compartment, operating device including be located the combined floodgate link mechanism of first compartment, be located the combined floodgate spring of second compartment and be located the combined floodgate semi-axis of first compartment, be provided with first baffle between first compartment and the second compartment, combined floodgate electromagnet assembly including combined floodgate electromagnet and be used for carrying out the fixed mounting panel that sets up with the combined floodgate electromagnet, an electro-magnet is seted up at the position that corresponds the combined floodgate electromagnet and is let the position mouth, the one end of mounting panel fix at first baffle and be located the second compartment, combined floodgate electromagnet pass the electro-magnet and let the position that is located first compartment and close the semi-axis after the position mouth corresponding. The advantages are that: the disassembly and assembly of the closing electromagnet assembly are simplified, the daily maintenance is convenient, and the damage to relevant parts is not easy to cause.

Description

Circuit breaker

Technical Field

The utility model belongs to the technical field of middling voltage apparatus, concretely relates to circuit breaker.

Background

In the field of power transmission, circuit breakers are used very widely, are important switchgear in electric power systems, have a high connection and disconnection capacity, are responsible for the dual function of controlling and protecting the circuit, and are able to close, carry and open/close the current in abnormal circuit conditions within a given time, in addition to operating under normal operating conditions.

Generally, medium voltage vacuum circuit breakers are installed in switch cabinets or switch cabinets, and the operating mechanism of a non-modular medium voltage vacuum circuit breaker independently installs each component unit in a frame, and the main components are distributed in several compartments partitioned by partition boards. The closing electromagnet assembly as a wearing part is arranged in the mechanism. When the closing electromagnet assembly is maintained, a plurality of related important transmission components need to be removed, the operation is complicated, normal components are easy to damage, and a small amount of workload is brought to installation and removal.

In view of the above-mentioned prior art, there is a need for an improvement of the structure of the existing circuit breaker, for which the applicant has made an advantageous design, the solution to be described below being created in this context.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit breaker has simplified the dismouting of combined floodgate electromagnet assembly, has improved routine maintenance's convenience.

The utility model aims at reaching like this, a circuit breaker, including frame and operating device and the combined floodgate electromagnet assembly of setting in the frame inside, the frame in be provided with first compartment and with first compartment adjacent second compartment, operating device including set up combined floodgate link mechanism in first compartment, set up combined floodgate spring and the switching-on semi-axis that rotates the setting in first compartment in the second compartment, first compartment and second compartment between be provided with first baffle, combined floodgate electromagnet assembly drive combined floodgate semi-axis rotation after getting the electricity, combined floodgate spring release can drive combined floodgate link mechanism action simultaneously and realize the electronic combined floodgate of circuit breaker, combined floodgate electromagnet assembly include combined floodgate electromagnet and be connected the mounting panel that is used for carrying out the fixed setting with the combined floodgate electromagnet of installation with the combined floodgate electromagnet first baffle on the position that corresponds the combined floodgate electromagnet seted up an electro-magnet position mouth, the one end of mounting panel let fix at first baffle and be located the second electromagnet, combined floodgate compartment pass and let be located first compartment after the position mouth and corresponding with the position of combined floodgate.

In a specific embodiment of the present invention, the second compartment includes a second compartment i and a second compartment ii located at the left and right sides of the first compartment, and a closing spring i and a closing spring ii are respectively disposed in the second compartment i and the second compartment ii.

In another specific embodiment of the present invention, the first partition board includes a first partition board i and a first partition board ii, the first partition board i is disposed between the first compartment and the second compartment i, the first partition board ii is disposed between the first compartment and the second compartment ii, and the closing electromagnet is fixedly disposed on the first partition board i or the first partition board ii.

In the utility model discloses a still another concrete embodiment, still including separating brake electromagnet assembly, operating device still including the separating brake semi-axis, separating brake semi-axis rotate and set up in the third compartment of II sides of second compartment, separating brake electromagnet assembly fixed the setting on being located the second baffle between second compartment II and the third compartment, separating brake electromagnet assembly get the electricity after the action drive separating brake semi-axis rotate, realize the electronic separating brake of circuit breaker.

In another specific embodiment of the present invention, the closing electromagnet comprises a closing electromagnet body and a housing, wherein the closing electromagnet body is disposed in the housing and extends out of the housing to form a striking end.

In another specific embodiment of the present invention, the mounting plate is formed by integrally forming the housing, i.e. bending the housing.

The utility model discloses a further a concrete embodiment, the mounting panel include the fixed part and by the installation department that a side of fixed part bent upward and constitutes, the fixed part be connected fixedly with the combined floodgate electro-magnet, the installation department be located second compartment I and be connected fixedly with first baffle I or be located second compartment II and be connected fixedly with first baffle II.

In a more specific embodiment of the present invention, the mounting portion is fixedly connected to the first partition plate ii or the first partition plate i by a screw.

In yet another specific embodiment of the present invention, the electromagnet let opening is square, and is adapted to the outer contour of the closing electromagnet.

The utility model discloses an offer the electro-magnet that supplies the combined floodgate electro-magnet to pass on the baffle and let a mouthful, compare with prior art, the beneficial effect who has is: the disassembly and assembly of the closing electromagnet assembly are simplified, the closing electromagnet assembly is convenient to maintain daily, and related parts are not easily damaged.

Drawings

Fig. 1 is an installation diagram of a closing electromagnet assembly in a conventional circuit breaker.

Fig. 2 is an assembly schematic diagram of the closing electromagnet assembly and the first partition plate.

Fig. 3 is an assembly diagram of the mounting plate and the first partition plate according to the present invention.

Figure 4 is the utility model discloses a combined floodgate electromagnet assembly's structural decomposition drawing.

In the figure: 1. the device comprises a closing electromagnet assembly, 11 closing electromagnets, 111 closing electromagnet bodies, 1111 striking ends, 112 shells, 12 mounting plates, 121 fixing parts, 122 mounting parts and 1221 fixing holes; 2. the first partition plate 20, the electromagnet relief opening 21, the first partition plates I and 22 and the first partition plate II; 3. a screw; 4. a frame, 4a, a first compartment, 4b, a second compartment, 4b1, a second compartment I, 4b2, a second compartment II, 4c, a third compartment; 5. the automatic switching device comprises an operating mechanism, 51 switching-on link mechanisms, 52 switching-on springs, 521 switching-on springs I and 522 switching-on springs II and 53 switching-on half shafts, 54 switching-off half shafts; 6. a brake separating electromagnet assembly; 7. a second separator; 8. a third clapboard, 9, a nut.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.

In the following description, any concept related to the directionality (or the directional property) of up, down, left, right, front, and rear is intended for the position state of the drawing being described, and is intended to facilitate understanding by the public, and thus should not be construed as a limitation to the technical solution provided by the present invention.

The circuit breaker comprises a frame 4 as shown in fig. 1, wherein an operating mechanism 5 and a closing electromagnet assembly 1 are arranged in the frame 4, and the operating mechanism 5 comprises a closing link mechanism 51, a closing spring 52, a closing half shaft 53 and an opening half shaft 54. The frame 4 is provided with a first compartment 4a and a second compartment 4b adjacent to the first compartment 4a, i.e. a second compartment i 4b1 and a second compartment ii 4b2 are provided on the left and right sides of the first compartment 4a. Specifically, the first partition boards 2 are respectively arranged between the second compartment i 4b1 and the first compartment 4a, i.e. the number of the first partition boards 2 is two, namely, the first partition boards i 21 and the first partition boards ii 22 are respectively arranged between the second compartment i 4b1 and the second compartment ii 4b2, the first partition boards i 21 are arranged between the first compartment 4a and the second compartment i 4b1, and the first partition boards ii 22 are arranged between the first compartment 4a and the second compartment ii 4b2. The first partition 2 and the upper and lower top plates of the frame 4 enclose a first compartment 4a. The first compartment 4a is provided with a closing linkage 51 and a closing half shaft 53 rotatably arranged between the first partition I21 and the first partition II 22. The first partition plate I21 positioned on the right side and the upper top plate, the lower bottom plate and the right side plate of the frame 4 form a second compartment I4 b1, and a closing spring I521 is arranged in the second compartment I4 b1. The second partition plate 7 is arranged at the side, namely the left side, of the first partition plate II 22 positioned at the left side, the second partition plate II 22, the second partition plate 7, the upper top plate and the lower bottom plate of the framework 4 are enclosed into a second compartment II 4b2, and a closing spring II 522 is arranged in the second compartment II 4b2. After the power is supplied to the closing electromagnet assembly 1, the closing half shaft 53 is driven to rotate, the locking of the closing link mechanism 51 is released, and meanwhile, the closing spring 52 releases energy to drive the closing link mechanism 51 to act, so that the electric closing of the circuit breaker is realized. Referring to fig. 2 and 3, the closing electromagnet assembly 1 includes a closing electromagnet 11 and an installation plate 12 connected to the closing electromagnet 11 and used for fixedly installing the closing electromagnet 11. The closing electromagnet assembly 1 is installed in such a way that the first partition plate 2 is provided with an electromagnet relief opening 20 at a position corresponding to the closing electromagnet 11, and one end of the installation plate 12 is fixed on the first partition plate 2 and is positioned in the second compartment 4b. The closing electromagnet 11 passes through the electromagnet relief opening 20 and is located in the first compartment 4a and corresponds to the closing half shaft 53. Specifically, in the present embodiment, the mounting plate 12 is located in the second compartment ii 4b2 and fixed on the first partition ii 22, but of course, the mounting plate 12 may also be located in the second compartment i 4b1 and fixed on the first partition i 21, as long as the closing half shaft 53 can be driven to operate.

Furthermore, the shape of the electromagnet clearance opening 20 is matched with the outer contour of the closing electromagnet 11, that is, the closing electromagnet 11 can smoothly pass through the electromagnet clearance opening 20. In this embodiment, since the outer profile of the closing electromagnet 11 is square, the electromagnet clearance port 20 is also configured as a square hole. Of course, the electromagnet relief opening 20 may have other shapes as long as the closing electromagnet 11 can pass through.

The closing electromagnet 11 comprises a closing electromagnet body 111 and a shell 112, wherein the closing electromagnet body 111 is arranged in the shell 112, and a striking end 1111 is extended out of the shell 112. The striking end 1111 of the closing electromagnet body 111 is activated to drive the closing half 53 shaft to rotate after power is supplied, and meanwhile, the closing spring 52 releases energy to drive the closing link mechanism 51 to act so as to realize closing of the circuit breaker.

The mounting plate 12 may be bent upward when the housing 112 is formed, may be integrally formed, or may be formed separately from the housing 112.

In this embodiment, referring to fig. 4 in combination with fig. 2 and 3, the mounting plate 12 includes a fixing portion 121 and a mounting portion 122 formed by bending one side of the fixing portion 121 upward, that is, the fixing portion 121 and the mounting portion 122 form an L-shaped structure. The fixing portion 121 is fixedly connected with the closing electromagnet 11, and the mounting portion 122 is located in the second compartment 4b and fixedly connected with the first partition plate ii 22.

The installation part 122 is provided with a fixing hole 1221, the partition plate 2 is provided with a through hole at a position corresponding to the fixing hole 1221, the screw 3 sequentially penetrates through the fixing hole 1221 and the through hole and extends to the other side of the first partition plate II 22, and the mounting plate 12 and the closing electromagnet 11 are fixed on the first partition plate II 22 by welding or screwing the nut 9 on the other side. Preferably, the screw 3 is an outer hexagonal screw.

The circuit breaker still including separating brake electromagnet assembly 6, separating brake semi-axis 54 rotate and set up in the third compartment 4c of second compartment II 4b2 side, separating brake electromagnet assembly 6 is fixed to be set up on second baffle 7 between second compartment II 4b2, third compartment 4c, action drive separating brake semi-axis 54 rotates after separating brake electromagnet assembly 6 obtains the electricity, realizes the electronic separating brake of circuit breaker. Specifically, a third partition 8 is disposed beside the second partition 7, i.e. on the left side, the third compartment 4c is enclosed by the second partition 7, the third partition 8, and the upper top plate and the lower top plate of the frame 4, and the opening half shaft 54 is rotatably disposed between the second partition 7 and the third partition 8. The opening electromagnet assembly 6 can also be arranged on the third partition plate 8, and the fixing mode can be the same as that of the closing electromagnet assembly 1, or the opening and the abdicating holes can be directly fixed.

Taking the installation portion 122 located in the second compartment ii 4b2 and fixed on the first partition plate ii 22 as an example, after adopting the above structure, when the closing electromagnet assembly 1 needs to be removed, the screw 3 can be unscrewed by using a wrench, and after removing the screw 3, the closing electromagnet assembly 1 can be directly entered into the second compartment ii 4b2 from the first compartment 4a through the electromagnet let opening 20 on the first partition plate ii 22 by using a hand, thereby realizing the removal. When the closing electromagnet assembly 1 needs to be installed again, the closing electromagnet assembly 1 can be directly placed into the other side of the first partition plate II 22, namely the first compartment 4a, from the second compartment II 4b2 through the electromagnet yielding opening 20 in the first partition plate II 22 by hand, and then fixed by using the screw 3.

Claims

1. The utility model provides a circuit breaker, includes frame (4) and sets up operating device (5) and closing electromagnet assembly (1) inside frame (4), frame (4) in be provided with first compartment (4 a) and with first compartment (4 a) adjacent second compartment (4 b), operating device (5) including setting up closing link mechanism (51) in first compartment (4 a), setting up closing spring (52) and the semi-axis (53) of rotation setting in first compartment (4 a) in second compartment (4 b), first compartment (4 a) and second compartment (4 b) between be provided with first baffle (2), closing electromagnet assembly (1) get electric back drive semi-axis (53) and rotate, closing spring (52) can drive closing link mechanism (51) action realize circuit breaker electric closing simultaneously, closing electromagnet assembly (1) including closing (11) and be connected the installation with closing electromagnet (11) and be used for carrying out fixed mounting panel (12) that closing electromagnet set up, its characterized in that: an electromagnet yielding port (20) is formed in the position, corresponding to the closing electromagnet (11), of the first partition plate (2), one end of the mounting plate (12) is fixed to the first partition plate (2) and located in the second partition (4 b), and the closing electromagnet (11) penetrates through the electromagnet yielding port (20) and then is located in the first partition (4 a) and corresponds to the closing half shaft (53).

2. The circuit breaker as claimed in claim 1, wherein the second compartment (4 b) comprises a second compartment i (4 b 1) and a second compartment ii (4 b 2) located at left and right sides of the first compartment (4 a), and a closing spring i (521) and a closing spring ii (522) are respectively disposed in the second compartment i (4 b 1) and the second compartment ii (4 b 2).

3. A circuit breaker according to claim 2 wherein said first partition (2) comprises a first partition i (21) and a first partition ii (22), said first partition i (21) being disposed between said first compartment (4 a) and said second compartment i (4 b 1), said first partition ii (22) being disposed between said first compartment (4 a) and said second compartment ii (4 b 2), said closing electromagnet (11) being fixedly disposed on said first partition i (21) or said first partition ii (22).

4. The circuit breaker according to claim 2, characterized in that the circuit breaker further comprises a switching-off electromagnet assembly (6), the operating mechanism (5) further comprises a switching-off half shaft (54), the switching-off half shaft (54) is rotatably arranged in a third compartment (4 c) beside the second compartment II (4 b 2), the switching-off electromagnet assembly (6) is fixedly arranged on a second partition plate (7) between the second compartment II (4 b 2) and the third compartment (4 c), and the switching-off electromagnet assembly (6) is electrically operated to drive the switching-off half shaft (54) to rotate, so that the electric switching-off of the circuit breaker is realized.

5. The circuit breaker according to claim 1, wherein the closing electromagnet (11) comprises a closing electromagnet body (111) and a housing (112), the closing electromagnet body (111) is disposed in the housing (112) and protrudes from the housing (112) to form a striking end (1111).

6. A circuit breaker according to claim 1 wherein said mounting plate (12) is integrally formed when said housing (112) is formed, i.e. is bent from said housing (112).

7. A circuit breaker according to claim 3 wherein the mounting plate (12) comprises a fixing portion (121) and a mounting portion (122) formed by bending upward one side of the fixing portion (121), the fixing portion (121) is connected and fixed to the closing electromagnet (11), and the mounting portion (122) is located in the second compartment i (4 b 1) and is connected and fixed to the first partition i (21) or located in the second compartment ii (4 b 2) and is connected and fixed to the first partition ii (22).

8. A circuit breaker according to claim 7 wherein said mounting portion (122) is fixedly attached to said second (22) or first (21) diaphragm by means of screws (3).

9. The circuit breaker according to claim 1, wherein the electromagnet transfer opening (20) is square and is adapted to the outer contour of the closing electromagnet (11).