A new type of miniature circuit breaker with double columns

Abstract

This utility model discloses a novel dual-column miniature circuit breaker, belonging to the field of circuit breaker technology. It includes a circuit breaker body, a connecting mechanism on the outer side of the body, a mechanical locking mechanism at the bottom, a handle on one side of the locking mechanism, a dual-column terminal block on the top of the body away from the locking mechanism, an installation mechanism at the bottom, and a wiring frame on the upper side of the body. The connecting mechanism includes an I-beam fixedly connected to one side of the circuit breaker body, which can be inserted into a groove on the other side, allowing for the assembly of two or more circuit breaker bodies. A limiting plate prevents the I-beam from sliding out of the groove. After the I-beam is inserted into the groove, rubber columns are forced into limiting holes on the side of the I-beam, reinforcing the connection between the two circuit breaker bodies. The connection between the I-beam and the groove allows for the rapid assembly of multiple circuit breaker bodies, saving manpower.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, specifically relating to a novel dual-column miniature circuit breaker. Background Technology

[0002] A miniature circuit breaker (MCB) is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions, and capable of closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. It is used to prevent accidents caused by equipment overload or malfunction. The circuit breaker can be operated manually or automatically disconnect when the current change exceeds a predetermined value.

[0003] The existing double-column miniature circuit breaker can prevent loose and detached wiring, thus avoiding any circuit faults caused by loose wiring. It has practical significance and promotion value. However, when connecting multiple circuit breakers, they still rely on bolt tightening, which makes assembly inconvenient and wastes manpower. Moreover, during use, the circuit breaker often needs to be disassembled for maintenance and replacement. Convenient installation would improve work efficiency. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a novel dual-column miniature circuit breaker, characterized by rapid connection of multiple circuit breakers and simple assembly / disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel dual-column miniature circuit breaker, comprising a circuit breaker body, a connecting mechanism provided on the outer side of the circuit breaker body, a mechanical locking mechanism provided on the top of the circuit breaker body, a handle provided on one side of the mechanical locking mechanism, a dual-column terminal provided on the top side of the circuit breaker body away from the mechanical locking mechanism, an installation mechanism provided at the bottom of the circuit breaker body, and a wiring frame provided on the upper side of the circuit breaker body.

[0006] Preferably, the connecting mechanism includes an I-beam, a limiting plate, a sliding groove, and a dust-proof assembly. One end of the I-beam is fixedly connected to the limiting plate, a sliding groove is provided on the side of the circuit breaker body away from the I-beam, and a dust-proof assembly is provided on the side of the circuit breaker body near the wiring frame.

[0007] Preferably, the dust-blocking assembly includes a rotating frame, a baffle, and a plug, wherein the baffle is rotatably connected to the outer side of the rotating frame, and the plug is fixedly connected to the side of the baffle near the wiring frame.

[0008] Preferably, a rubber column is fixedly connected to the inner side of the groove, and a limit hole is opened on the side of the I-beam near the rubber column.

[0009] Preferably, the installation mechanism includes an installation plate, a connecting plate, mounting bolts, positioning holes, and a metal column. The mounting plate has connecting plates on both sides, mounting bolts on the top of the connecting plates, positioning holes on the top of the mounting plate, and a metal column fixedly connected to the bottom of the circuit breaker body above the positioning holes.

[0010] Preferably, a magnet is fixedly connected to the lower inner end of the positioning hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model is equipped with a connecting mechanism. The I-beam plate is fixedly connected to one side of the circuit breaker body. The I-beam plate can be inserted into the slide groove on the other side of the circuit breaker body, so that two or more circuit breaker bodies can be assembled. The limiting plate prevents it from sliding out of the slide groove. At the same time, the dustproof component can prevent dust and dirt from the wiring frame when no wires are connected. After the I-beam plate is inserted into the slide groove, it will squeeze the rubber column in the slide groove. Finally, the rubber column will be squeezed into the limiting hole on the side of the I-beam plate, which will strengthen the connection effect of the two circuit breaker bodies. Through the connection of the I-beam plate and the slide groove, multiple circuit breaker bodies can be quickly assembled, saving manpower.

[0013] 2. This utility model is equipped with an installation mechanism. In use, the circuit breaker body is first connected to the external power line through the wiring frame. Then, the mounting plate is installed into the switch cabinet or distribution cabinet through the connecting plate and mounting bolts. When the circuit breaker body needs to be installed, the metal post at the bottom of the circuit breaker body is directly inserted into the positioning hole to fix the circuit breaker body. The magnetic piece in the positioning hole can enhance the fixing effect. When the circuit breaker body needs to be repaired or replaced, it can be pulled out directly. It is attracted by the metal post in the positioning hole, which facilitates the disassembly and assembly of the entire device and improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side view of the structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0018] Figure 5 This is a schematic diagram of the dust-blocking component of this utility model;

[0019] Figure 6 This is a schematic diagram of the installation mechanism of this utility model;

[0020] In the diagram: 1. Circuit breaker body; 2. Connecting mechanism; 21. I-beam plate; 22. Limiting plate; 23. Slide groove; 24. Dustproof assembly; 241. Rotating frame; 242. Baffle; 243. Insert block; 25. Rubber column; 26. Limiting hole; 3. Mechanical locking mechanism; 4. Handle; 5. Double column terminal; 6. Mounting mechanism; 61. Mounting plate; 62. Connecting plate; 63. Mounting bolt; 64. Positioning hole; 65. Metal column; 66. Magnet piece; 7. Terminal block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figure 1-6 The present invention provides the following technical solution: a novel dual-column miniature circuit breaker, comprising a circuit breaker body 1, a connecting mechanism 2 provided on the outer side of the circuit breaker body 1, a mechanical locking mechanism 3 provided on the top of the circuit breaker body 1, a handle 4 provided on one side of the mechanical locking mechanism 3, a dual-column terminal 5 provided on the top side of the circuit breaker body 1 away from the mechanical locking mechanism 3, an installation mechanism 6 provided on the bottom of the circuit breaker body 1, and a wiring frame 7 provided on the upper side of the circuit breaker body 1.

[0023] Specifically, the connecting mechanism 2 includes an I-beam plate 21, a limiting plate 22, a sliding groove 23, and a dust-proof component 24. One end of the I-beam plate 21 is fixedly connected to the limiting plate 22. A sliding groove 23 is provided on the side of the circuit breaker body 1 away from the I-beam plate 21. A dust-proof component 24 is provided on the side of the circuit breaker body 1 near the wiring frame 7.

[0024] By adopting the above technical solution, the I-beam plate 21 is fixedly connected to one side of the circuit breaker body 1, and the I-beam plate 21 can be inserted into the slide groove 23 on the other side of the circuit breaker body 1, so that two or more circuit breaker bodies 1 can be assembled. The limiting plate 22 prevents it from sliding out of the slide groove 23. At the same time, the dustproof component 24 can prevent dust and dirt from the wiring frame 7 when no wires are connected.

[0025] Specifically, the dust-blocking assembly 24 includes a rotating frame 241, a baffle 242, and a plug 243. The baffle 242 is rotatably connected to the outer side of the rotating frame 241, and the plug 243 is fixedly connected to the side of the baffle 242 near the wiring frame 7.

[0026] By adopting the above technical solution, when no external wires are connected to the circuit breaker body 1, the baffle 242 is rotated around the rotating frame 241, so that the plug 243 is inserted into the wiring frame 7, blocking the wiring frame 7 to prevent dust from entering.

[0027] Specifically, a rubber column 25 is fixedly connected to the inner side of the slide 23, and a limit hole 26 is opened on the side of the I-beam plate 21 near the rubber column 25.

[0028] By adopting the above technical solution, after the I-beam 21 is inserted into the slide groove 23, it will squeeze the rubber column 25 in the slide groove 23. Finally, the rubber column 25 will be squeezed into the limiting hole 26 on the side of the I-beam 21, which can strengthen the connection effect of the two circuit breaker bodies 1.

[0029] In this embodiment, the circuit breaker body 1 includes the internal structure of the casing machine. After the wiring frame 7 is connected to the wire, the current can be controlled by manually turning the handle 4. The I-beam 21 is fixedly connected to one side of the circuit breaker body 1. The I-beam 21 can be inserted into the slide groove 23 on the other side of the circuit breaker body 1, so that two or more circuit breaker bodies 1 can be assembled. The limiting plate 22 prevents it from sliding out of the slide groove 23. When no external wires are connected to the circuit breaker body 1, the baffle 242 is turned around the rotating frame 241, so that the plug 243 is inserted into the wiring frame 7, blocking the wiring frame 7 to prevent dust from entering. After the I-beam 21 is inserted into the slide groove 23, it will squeeze the rubber column 25 in the slide groove 23. Finally, the rubber column 25 will squeeze into the limiting hole 26 on the side of the I-beam 21, which can strengthen the connection effect of the two circuit breaker bodies 1. Through the connection of the I-beam 21 and the slide groove 23, multiple circuit breaker bodies 1 can be quickly assembled, saving manpower. Example

[0030] The difference between this embodiment and embodiment 1 is that the installation mechanism 6 includes an installation plate 61, a connecting plate 62, an installation bolt 63, a positioning hole 64, and a metal column 65. The installation plate 61 is provided with connecting plates 62 on both sides, the connecting plate 62 is provided with an installation bolt 63 on the top, the installation plate 61 is provided with a positioning hole 64, and the bottom of the circuit breaker body 1 is fixedly connected to the side above the positioning hole 64.

[0031] By adopting the above technical solution, when in use, the circuit breaker body 1 is first connected to the external wires through the wiring frame 7, and then the mounting plate 61 is installed into the switch cabinet or distribution cabinet through the connecting plate 62 and the mounting bolts 63. When it is necessary to install the circuit breaker body 1, the metal post 65 at the bottom of the circuit breaker body 1 is directly inserted into the positioning hole 64 to fix the circuit breaker body 1.

[0032] Specifically, a magnet 66 is fixedly connected to the lower inner side of the positioning hole 64.

[0033] By adopting the above technical solution, the magnetic piece 66 inside the positioning hole 64 can enhance the fixing effect, and when it is necessary to repair or replace the circuit breaker body 1, it can be pulled out directly.

[0034] In this embodiment, the circuit breaker body 1 is first connected to the external power line via the wiring frame 7. Then, the mounting plate 61 is installed into the switch cabinet or distribution cabinet via the connecting plate 62 and mounting bolts 63. When the circuit breaker body 1 needs to be installed, the metal post 65 at the bottom of the circuit breaker body 1 is directly inserted into the positioning hole 64 to fix the circuit breaker body 1. The magnetic piece 66 in the positioning hole 64 can enhance the fixing effect. When the circuit breaker body 1 needs to be repaired or replaced, it can be pulled out directly. The metal post 65 is attracted into the positioning hole 64, which facilitates the disassembly and assembly of the entire device and improves work efficiency.

[0035] The structure and operating principle of the circuit breaker body 1, mechanical locking mechanism 3, handle 4, double-column terminal block 5 and wiring frame 7 in this utility model have been disclosed in a novel double-column miniature circuit breaker disclosed in Chinese patent application number CN202322787852.7.

[0036] The working principle and usage process of this utility model are as follows: When using this utility model, the circuit breaker body 1 includes the internal structure of the casing. After the wiring frame 7 is connected to the wire, the current can be controlled by manually turning the handle 4. The I-beam 21 is fixedly connected to one side of the circuit breaker body 1. The I-beam 21 can be inserted into the slide groove 23 on the other side of the circuit breaker body 1, so that two or more circuit breaker bodies 1 can be assembled. The limiting plate 22 prevents it from sliding out of the slide groove 23. When no external wires are connected to the circuit breaker body 1, the baffle 242 is turned around the rotating frame 241, so that the plug 243 is inserted into the wiring frame 7, blocking the wiring frame 7 to prevent dust from entering. After the I-beam 21 is inserted into the slide groove 23, it will squeeze the rubber column 25 in the slide groove 23. Finally, the rubber column 25 will be squeezed into the side of the I-beam 21. The limiting hole 26 can strengthen the connection between two circuit breaker bodies 1. Through the connection of the I-beam plate 21 and the slide groove 23, multiple circuit breaker bodies 1 can be quickly assembled, saving manpower. In use, first connect the circuit breaker body 1 to the external wires through the wiring frame 7, and then install the mounting plate 61 into the switch cabinet or distribution cabinet through the connecting plate 62 and the mounting bolts 63. When it is necessary to install the circuit breaker body 1, simply insert the metal post 65 at the bottom of the circuit breaker body 1 into the positioning hole 64 to fix the circuit breaker body 1. The magnet 66 in the positioning hole 64 can enhance the fixing effect. When it is necessary to repair or replace the circuit breaker body 1, simply pull it out. The metal post 65 is attracted into the positioning hole 64, which facilitates the disassembly and assembly of the entire device and improves work efficiency.

[0037] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of miniature circuit breaker of double column type comprising a circuit breaker body (1) characterized in that: A connecting mechanism (2) is provided on the outside of the circuit breaker body (1), a mechanical locking mechanism (3) is provided on the top of the circuit breaker body (1), a handle (4) is provided on one side of the mechanical locking mechanism (3), a double-column terminal (5) is provided on the top side of the circuit breaker body (1) away from the mechanical locking mechanism (3), an installation mechanism (6) is provided at the bottom of the circuit breaker body (1), and a wiring frame (7) is provided on the upper side of the circuit breaker body (1).

2. A new type of double column miniature circuit breaker according to claim 1, characterized in that: The connecting mechanism (2) includes an I-beam (21), a limiting plate (22), a sliding groove (23), and a dust-proof assembly (24). One end of the I-beam (21) is fixedly connected to the limiting plate (22). A sliding groove (23) is provided on the side of the circuit breaker body (1) away from the I-beam (21). A dust-proof assembly (24) is provided on the side of the circuit breaker body (1) near the wiring frame (7).

3. A new type of miniature circuit breaker of double column type according to claim 2 characterized in that: The dust-blocking assembly (24) includes a rotating frame (241), a baffle (242) and a plug (243). The baffle (242) is rotatably connected to the outer side of the rotating frame (241), and the plug (243) is fixedly connected to the side of the baffle (242) near the wiring frame (7).

4. A new type of double column miniature circuit breaker according to claim 2, characterized in that: A rubber column (25) is fixedly connected to the inner side of the slide (23), and a limit hole (26) is opened on the side of the I-beam (21) near the rubber column (25).

5. The new type of miniature circuit breaker of dual-column type according to claim 1, characterized in that: The installation mechanism (6) includes an installation plate (61), a connecting plate (62), an installation bolt (63), a positioning hole (64), and a metal column (65). The installation plate (61) has connecting plates (62) on both sides, and the top of the connecting plate (62) has an installation bolt (63). The top of the installation plate (61) has a positioning hole (64), and the bottom of the circuit breaker body (1) is fixedly connected to a metal column (65) on the side above the positioning hole (64).

6. A novel dual-column miniature circuit breaker according to claim 5, characterized in that: A magnet (66) is fixedly connected to the lower inner side of the positioning hole (64).

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