CN221262253U

CN221262253U - High-safety miniature circuit breaker

Info

Publication number: CN221262253U
Application number: CN202322861677.1U
Authority: CN
Inventors: 朱起跃
Original assignee: Welson Electric China Co ltd
Current assignee: Welson Electric China Co ltd
Priority date: 2023-10-25
Filing date: 2023-10-25
Publication date: 2024-07-02
Anticipated expiration: 2033-10-25

Abstract

The utility model relates to a high-safety miniature circuit breaker, which comprises a mounting backboard and a miniature circuit breaker body fixedly connected to the left side of the mounting backboard, wherein a brake piece is arranged at the left end of the miniature circuit breaker body, a protection shielding plate is arranged at the left end of the miniature circuit breaker body, a transparent front plate is hinged to the left end of the protection shielding plate, a lock handle is hung at the outer end of the transparent front plate, a lock is arranged at the lower end of the lock handle, a lock hole is arranged at the lower end of the lock, a bottom protection rotating plate is rotatably connected to the lower end of the lock, a buzzer piece is arranged at the inner end of the bottom protection rotating plate, and a second sensor is fixedly connected to the lower end of the lock.

Description

High-safety miniature circuit breaker

Technical Field

The utility model relates to a high-safety miniature circuit breaker, in particular to a high-safety miniature circuit breaker applied to the field of power equipment.

Background

The miniature circuit breaker is also called miniature circuit breaker, is applicable to the overload and short-circuit protection of the AC 50/60Hz rated voltage 230/400V, rated current to the 63A line, can also be used as the infrequent operation conversion of the line under normal conditions, and the small circuit breaker has the gate exposed outside when in use, so that the safety coefficient of the running process of the miniature circuit breaker is not high.

In order to solve the problem that the safety coefficient of the running process of the miniature circuit breaker is not high due to the fact that a brake part of the miniature circuit breaker is exposed when the miniature circuit breaker is used, the miniature circuit breaker in the market adopts a design that a lock cover is arranged outside the miniature circuit breaker, and the miniature circuit breaker has a certain market occupation ratio.

The design of the lock cover arranged outside the miniature circuit breaker in the existing market is adopted, and a reminding mechanism is not arranged when a lockset is manually opened, so that the miniature circuit breaker cannot be found in time in the malicious unlocking process, and the operation safety of the miniature circuit breaker still has room for improvement.

Disclosure of utility model

Aiming at the prior art, the technical problem to be solved by the utility model is that the small circuit breaker in the existing market adopts the design that the lock cover is arranged outside the small circuit breaker, and a reminding mechanism is not provided when a lockset is manually opened, so that the small circuit breaker cannot be found in time in the malicious unlocking process.

In order to solve the problems, the utility model provides a high-safety miniature circuit breaker which comprises a mounting backboard and a miniature circuit breaker body fixedly connected to the left side of the mounting backboard, wherein a brake piece is arranged at the left end of the miniature circuit breaker body, a protective shielding plate is arranged at the left end of the miniature circuit breaker body, a transparent front plate is hinged to the left end of the protective shielding plate, a lock handle is hung at the outer end of the transparent front plate, a lock is arranged at the lower end of the lock handle, a lock hole is arranged at the lower end of the lock, a bottom protective rotating plate is rotatably connected at the lower end of the lock, a buzzer piece is arranged at the inner end of the bottom protective rotating plate, and a second sensor is fixedly connected at the lower end of the lock.

In the miniature circuit breaker of above-mentioned high security, this scheme is provided with the protection cover plate in miniature circuit breaker body left side, and locks through the tool to lock between protection cover plate and the transparent front bezel and play the guard action, sets up the bottom protection revolving plate simultaneously in the tool to lock below and protects the lockhole shade, can further ensure the safety protection ability to the floodgate piece in the miniature circuit breaker body.

As a further improvement of the application, the second sensor is in contact with the buzzer sheet, and the first sensor is arranged at the upper end of the lock.

As a further improvement of the application, the first sensor is contacted with the lock handle, and the right end of the protective shielding plate is fixedly connected with a pair of inner side plates.

As a further improvement of the application, two inner side plates extend to the upper inner wall and the lower inner wall of the miniature circuit breaker body, and a threaded piece is connected between the inner side plates and the mounting backboard in a threaded manner.

As a further improvement of the present application, the right end of the protective covering plate is fixedly connected with a pair of upper cover frame plates, and the two upper cover frame plates are positioned on the upper side and the lower side of the mounting backboard.

In addition to the further improvement of the application, the upper end and the lower end of the mounting backboard are provided with screw members which are positioned on the inner side of the upper cover frame plate.

To sum up, this scheme is provided with the protection cover plate in miniature circuit breaker body left side, and locks through the tool to lock between protection cover plate and the transparent front bezel and play the guard action, avoid malicious operation or destroy the phenomenon of floodgate spare to take place, set up the bottom simultaneously and protect the swivel plate and protect the lockhole shade in the tool to lock below, can further ensure the safety protection ability to floodgate spare in the miniature circuit breaker body, the mode of protection cover plate installation in miniature circuit breaker body is more firm safety for the mode at miniature circuit breaker body inner wall through interior panel and screw thread spare threaded connection simultaneously, compare traditional mode of pasting.

Drawings

Fig. 1 is a side view of a miniature circuit breaker body of a second embodiment of the present application;

Fig. 2 is an open side view of a transparent front plate according to a first embodiment of the present application;

Fig. 3 is a partial enlarged view of a lock according to a first embodiment of the present application.

The reference numerals in the figures illustrate:

1. Mounting a backboard; 2. a miniature circuit breaker body; 3. a gate member; 4. a screw; 6. an upper cover frame plate; 7. a protective mask plate; 8. a screw; 9. an inner side plate; 10. a transparent front plate; 11. a lock handle; 13. a first inductor; 15. a lock; 16. a lock hole; 17. a bottom protective rotating plate; 18. a buzzer sheet; 19. a second inductor.

Detailed Description

Two embodiments of the present application will be described in detail with reference to the accompanying drawings.

First embodiment:

Fig. 2 shows a miniature circuit breaker body 2 comprising a mounting back plate 1 and fixedly connected to the left side of the mounting back plate 1, a brake 3 is mounted at the left end of the miniature circuit breaker body 2, a protective shielding plate 7 is mounted at the left end of the miniature circuit breaker body 2, and a transparent front plate 10 is hinged to the left end of the protective shielding plate 7.

Fig. 2-3 show that the lock handle 11 is hung at the outer end of the transparent front plate 10, the lock 15 is installed at the lower end of the lock handle 11, the lock hole 16 is arranged at the lower end of the lock 15, the bottom protection rotating plate 17 is rotatably connected at the lower end of the lock 15, the buzzer piece 18 is installed at the inner end of the bottom protection rotating plate 17, the second sensor 19 is fixedly connected at the lower end of the lock 15, the second sensor 19 is contacted with the buzzer piece 18, the first sensor 13 is installed at the upper end of the lock 15, and the first sensor 13 is contacted with the lock handle 11.

Fig. 1-3 show that this scheme is provided with the protection shielding board 7 in miniature circuit breaker body 2 left side, and lock through tool to lock 15 between protection shielding board 7 and the transparent front bezel 10 and play the guard action, avoid maliciously operating or destroy the phenomenon emergence of floodgate spare 3, set up bottom protection rotor plate 17 simultaneously below tool to lock 15 and protect lockhole 16 shade, when someone wants to open transparent front bezel 10 through tool to lock 15, then need at first rotate bottom protection rotor plate 17, make second inductor 19 and protection shielding board 7 disconnection contact, buzzer piece 18 receives the signal to send the beep that has the warning effect, at this moment, if be that the handheld accurate key of staff lets in tool to lock 15 makes lock 11 rotate the back, lock 11 and first inductor 13 separate, buzzer piece 18 again at this moment receives the signal stop sounding, can play the effect of frightening and attract the staff to look over the specific circumstances before, can further ensure the safety protection ability to floodgate spare 3 in miniature circuit breaker body 2.

Second embodiment:

Fig. 2 shows that the right end fixedly connected with a pair of medial plate 9 of protection cover plate 7, two medial plates 9 all extend to two upper and lower inner walls of miniature circuit breaker body 2, threaded connection has screw 8 between medial plate 9 and the installation backplate 1, the right-hand member fixedly connected with a pair of upper cover frame plate 6 of protection cover plate 7, two upper cover frame plates 6 are located the upper and lower both sides of installation backplate 1, the screw piece 4 is all installed at the upper and lower both ends of installation backplate 1, screw piece 4 is located the upper cover frame plate 6 inboard.

Fig. 2 shows that the mode of installing the protective cover plate 7 in the miniature circuit breaker body 2 is a mode of connecting the inner side plate 9 with the screw 8 in the inner wall of the miniature circuit breaker body 2 in a threaded manner, so that the mode is firmer and safer than the traditional pasting mode, and the protective cover plate 7 is provided with the upper cover frame plate 6 capable of protecting the screw 4 up and down, the screw 4 is induced in the protective space of the protective cover plate 7, and the operation safety factor of the installation backboard 1 is higher.

The present utility model is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present utility model are still within the scope of the present utility model.

Claims

1. A miniature circuit breaker of high security, characterized in that: including installation backplate (1) and fixed connection miniature circuit breaker body (2) in installation backplate (1) left side, floodgate spare (3) are installed to the left end of miniature circuit breaker body (2), protection cover plate (7) are installed to the left end of miniature circuit breaker body (2), the left end hinge of protection cover plate (7) is connected with transparent front bezel (10), lock (11) have been hung to the outer end of transparent front bezel (10), tool to lock (15) are installed to the lower extreme of lock (11), the lower extreme of tool to lock (15) is provided with lockhole (16), the lower extreme rotation of tool to lock (15) is connected with bottom protection revolving plate (17), buzzer piece (18) are installed to the inner of bottom protection revolving plate (17), the lower extreme fixedly connected with second inductor (19) of tool to lock (15).

2. The high-safety miniature circuit breaker of claim 1, wherein: the second inductor (19) is in contact with the buzzer piece (18), and the first inductor (13) is arranged at the upper end of the lock (15).

3. A high safety miniature circuit breaker according to claim 2, characterized in that: the first sensor (13) is contacted with the lock handle (11), and the right end of the protective shielding plate (7) is fixedly connected with a pair of inner side plates (9).

4. A miniature circuit breaker of high safety according to claim 3, characterized in that: the two inner side plates (9) extend to the upper inner wall and the lower inner wall of the miniature circuit breaker body (2), and threaded pieces (8) are connected between the inner side plates (9) and the mounting backboard (1) in a threaded manner.

5. The high-safety miniature circuit breaker of claim 1, wherein: the right end of the protection shielding plate (7) is fixedly connected with a pair of upper cover frame plates (6), and the two upper cover frame plates (6) are positioned on the upper side and the lower side of the installation backboard (1).

6. The high-safety miniature circuit breaker of claim 1, wherein: the upper end and the lower end of the mounting backboard (1) are both provided with screw members (4), and the screw members (4) are positioned on the inner side of the upper cover frame plate (6).