Intelligent miniature circuit breaker with protection function

Abstract

The utility model relates to circuit breaker technical field discloses a kind of intelligent miniature circuit breaker with protection function, including circuit breaker main body, the upper end front side of circuit breaker main body is equipped with multiple thread grooves, thread groove equidistance distribution, the inner chamber of thread groove is provided with screw rod, the upper end rear side of circuit breaker main body is provided with terminal, and thread groove is in the accommodation slot of terminal with penetration.This utility model technical scheme can make protection plate cover in the upper of terminal, to protect terminal, avoid idle terminal to be corroded by external environment, and then influence subsequent terminal and wire connection, screw rod can be pressed tightly wire and terminal again, wire and terminal are limited, protection plate is pressed to the left again, and the clamping plate on protection plate is inserted into through slot, and the clamping plate is inserted into annular groove in positioning cap, and then the position of screw rod is limited, avoid the situation that terminal and wire loose contact is caused by screw rod loosening under the bumpy state.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an intelligent miniature circuit breaker with protective functions. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and can close, carry, and interrupt current under abnormal circuit conditions within a specified time.

[0003] A search revealed that publication number (CN211957566U) discloses an intelligent miniature circuit breaker with protective functions, including an electrical box. The electrical box contains several circuit breaker bodies. Terminals are located at the front of each circuit breaker body, and protective components are located on the outer sides of the terminals. The protective components include a protective housing, a handle, a hemispherical groove, an annular snap-fit ​​groove, and an annular snap-fit ​​elastic element. The annular snap-fit ​​elastic element is connected to the side of the protective housing closest to the electrical box. An annular snap-fit ​​groove is formed inside the side wall of the circuit breaker body at the position corresponding to the annular snap-fit ​​elastic element. A hemispherical groove is formed inside the side wall of the protective housing away from the circuit breaker body.

[0004] The implementation of this technical solution has at least the following drawbacks: Although the utility model can protect the terminals, it is not convenient to limit the screw after the terminals are connected, which can lead to the screw loosening under bumpy conditions, causing poor contact between the terminals and the wires. Therefore, improvements are urgently needed. Thus, we propose an intelligent miniature circuit breaker with protective functions. Utility Model Content

[0005] The purpose of this utility model is to provide an intelligent miniature circuit breaker with protective functions, which solves the problem mentioned in the background art that it is inconvenient to limit the screw after the terminal is connected, resulting in the screw loosening under bumpy conditions, causing poor contact between the terminal and the wire.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent miniature circuit breaker with protective function, comprising a circuit breaker body, a plurality of threaded grooves being provided on the upper front side of the circuit breaker body, the threaded grooves being evenly distributed, a screw being provided in the inner cavity of the threaded grooves, a terminal being provided on the upper rear side of the circuit breaker body, the threaded grooves penetrating into the receiving groove of the terminal, a positioning cap being welded to the front end of the screw, an annular groove being provided on the outer side of the positioning cap, a through groove being provided on the upper end of the inner wall of the threaded grooves, a protective plate being provided on the upper end of the circuit breaker body, and a hinge seat being fixedly installed in the middle of the upper end of the circuit breaker body, the end of the protective plate near the through groove being rotatably connected to the hinge seat.

[0007] By adopting the above technical solution, the protective plate can be placed over the terminal to protect it and prevent the idle terminal from being corroded by the external environment, which would affect the subsequent connection between the terminal and the wire. When it is necessary to connect the wire and the terminal, the screw can be used to press the wire and the terminal together to limit their connection. Then, the protective plate is pressed to the left to insert the retaining plate on the protective plate into the through slot and into the annular groove on the positioning cap, thereby limiting the position of the screw and preventing the screw from loosening under bumpy conditions, which could cause the terminal and the wire to become loose and have poor contact.

[0008] Optionally, the size of the card plate is adapted to the size of the annular groove, and the card plate is movably connected to the annular groove.

[0009] By adopting the above technical solution, the positioning cap can be limited by the cooperation between the card plate and the annular groove.

[0010] Optionally, the length of the protection plate is greater than the length of the terminal, and the protection plate corresponds one-to-one with the terminal.

[0011] By adopting the above technical solution and setting up a protective plate, the top of the terminal can be covered and protected.

[0012] Optionally, the screw is sized to match the thread groove, and the screw and the thread groove are helically connected.

[0013] By adopting the above technical solution, the screw and the threaded groove can be used to limit the wires and terminals.

[0014] Optionally, the length of the through groove is greater than the diameter of the positioning cap, and both the protective plate and the card plate are made of insulating material.

[0015] By adopting the above technical solution, since the length of the through groove is greater than the diameter of the positioning cap, it is easier for the clamping plate to be inserted into the annular groove through the through groove. Moreover, both the protective plate and the clamping plate are made of insulating material, thus ensuring the safety of the staff.

[0016] Optionally, the size of the card plate is smaller than the size of the through slot, and the card plate is movably connected to the through slot.

[0017] By adopting the above technical solution, the through groove is designed to facilitate the card plate to pass through the through groove, thereby limiting the positioning cap.

[0018] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0019] The technical solution of this application, through the circuit breaker body, positioning cap, terminal, protection plate, locking plate, and annular groove, can both protect the terminal by covering it with the protection plate, thus preventing the idle terminal from being corroded by the external environment and affecting the subsequent connection between the terminal and the wire, and when it is necessary to connect the wire and the terminal, the screw can press the wire and the terminal together to limit the connection between the wire and the terminal. Then, pressing the protection plate to the left causes the locking plate on the protection plate to insert into the through groove, and the locking plate to lock into the annular groove on the positioning cap, thereby limiting the position of the screw and preventing the screw from loosening under bumpy conditions, which would cause the terminal and the wire to become loose and have poor contact. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the protective plate cover structure of an intelligent miniature circuit breaker with protective function according to the present invention.

[0022] Figure 2 This is a three-dimensional schematic diagram of the protective plate flipping structure of an intelligent miniature circuit breaker with protective function according to this utility model;

[0023] Figure 3 This is a partial enlarged view of point A of an intelligent miniature circuit breaker with protective functions according to this utility model.

[0024] In the diagram: 1. Circuit breaker body; 11. Threaded groove; 12. Positioning cap; 13. Terminal; 14. Screw; 2. Protection plate; 21. Hinge seat; 22. Clamping plate; 3. Through groove; 4. Annular groove. Detailed Implementation

[0025] Example 1, please refer to Figure 1-3 This is the first embodiment of the present invention, which provides a technical solution: an intelligent miniature circuit breaker with protective function, including a circuit breaker body 1, a plurality of threaded grooves 11 are provided on the upper front side of the circuit breaker body 1, the threaded grooves 11 are evenly distributed, a screw 14 is provided in the inner cavity of the threaded grooves 11, a terminal 13 is provided on the upper rear side of the circuit breaker body 1, the threaded grooves 11 pass through the receiving groove of the terminal 13, a positioning cap 12 is welded to the front end of the screw 14, an annular groove 4 is provided on the outer side of the positioning cap 12, a through groove 3 is provided on the upper end of the inner wall of the threaded grooves 11, a protective plate 2 is provided on the upper end of the circuit breaker body 1, and a hinge seat 21 is fixedly installed in the middle of the upper end of the circuit breaker body 1, the end of the protective plate 2 near the through groove 3 is rotatably connected to the hinge seat 21.

[0026] In this embodiment, the protective plate 2 can be placed over the terminal 13 to protect it and prevent it from being corroded by the external environment, thus affecting the connection between the terminal 13 and the wire. When it is necessary to connect the wire and the terminal 13, the screw 14 can be used to press the wire and the terminal 13 together to limit their connection. Then, the protective plate 2 is pressed to the left to insert the retaining plate 22 on the protective plate 2 into the through groove 3 and into the annular groove 4 on the positioning cap 12, thereby limiting the position of the screw 14 and preventing the screw 14 from loosening and causing poor contact between the terminal 13 and the wire under bumpy conditions.

[0027] Example 2: This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an intelligent miniature circuit breaker with protective functions. The size of the card plate 22 is adapted to the size of the annular groove 4, and the card plate 22 is movably connected to the annular groove 4. The length of the protection plate 2 is greater than the length of the terminal 13, and the protection plate 2 and the terminal 13 correspond one-to-one. The size of the screw 14 is adapted to the size of the threaded groove 11, and the screw 14 and the threaded groove 11 are spirally connected. The length of the through groove 3 is greater than the diameter of the positioning cap 12. Both the protection plate 2 and the card plate 22 are made of insulating material. The size of the card plate 22 is smaller than the size of the through groove 3, and the card plate 22 is movably connected to the through groove 3.

[0028] In this embodiment, the positioning cap 12 can be limited by the cooperation of the locking plate 22 and the annular groove 4. The protective plate 2 can cover and protect the top of the terminal 13. The screw 14 can be limited by the cooperation of the threaded groove 11. Since the length of the through groove 3 is greater than the diameter of the positioning cap 12, it is convenient for the locking plate 22 to be inserted into the annular groove 4 through the through groove 3. Moreover, both the protective plate 2 and the locking plate 22 are made of insulating material, which ensures the safety of the staff. The through groove 3 makes it convenient for the locking plate 22 to pass through the through groove 3, thereby limiting the positioning cap 12.

[0029] In use, first flip the protective plate 2 downwards, allowing it to rotate downwards along the hinge seat 21, thus covering the terminal 13 and protecting it from corrosion by the external environment, which could affect the subsequent connection between the terminal 13 and the wire. When it is necessary to connect the wire to the terminal 13, flip the protective plate 2 to the left to expose the terminal 13, then insert the wire into the terminal 13. Then rotate the screw 14, which moves to the right along the threaded groove 11, pressing the wire and terminal 13 together. Next, press the protective plate 2 to the left, causing the retaining plate 22 on the protective plate 2 to insert into the through groove 3 and engage with the annular groove 4 on the positioning cap 12, thus limiting the position of the screw 14 and preventing the screw 14 from loosening and causing poor contact between the terminal 13 and the wire during bumpy conditions.

Claims

1. A smart miniature circuit breaker with protective functions, comprising a circuit breaker body (1), characterized in that: The circuit breaker body (1) has multiple threaded grooves (11) on the upper front side, the threaded grooves (11) are evenly distributed, the inner cavity of the threaded grooves (11) is provided with a screw (14), the upper rear side of the circuit breaker body (1) is provided with a terminal (13), the threaded grooves (11) pass through the receiving groove of the terminal (13), the front end of the screw (14) is welded with a positioning cap (12), the outer side of the positioning cap (12) is provided with an annular groove (4), the upper end of the inner wall of the threaded groove (11) is provided with a through groove (3), the upper end of the circuit breaker body (1) is provided with a protective plate (2), the middle part of the upper end of the circuit breaker body (1) is fixedly installed with a hinge seat (21), the end of the protective plate (2) near the through groove (3) is rotatably connected to the hinge seat (21).

2. The intelligent miniature circuit breaker with protective function according to claim 1, characterized in that: It also includes a card plate (22), the size of which is adapted to the size of the annular groove (4), and the card plate (22) is movably connected to the annular groove (4).

3. The intelligent miniature circuit breaker with protective function according to claim 1, characterized in that: The length of the protection plate (2) is greater than the length of the terminal (13), and the protection plate (2) and the terminal (13) correspond one-to-one.

4. The intelligent miniature circuit breaker with protective function according to claim 1, characterized in that: The size of the screw (14) is adapted to the size of the threaded groove (11), and the screw (14) and the threaded groove (11) are helically connected.

5. The intelligent miniature circuit breaker with protective function according to claim 1, characterized in that: The length of the through groove (3) is greater than the diameter of the positioning cap (12), and both the protective plate (2) and the card plate (22) are made of insulating material.

6. The intelligent miniature circuit breaker with protective function according to claim 2, characterized in that: The size of the card plate (22) is smaller than the size of the through slot (3), and the card plate (22) is movably connected to the through slot (3).

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