An intelligent miniature circuit breaker

Abstract

A smart miniature circuit breaker belongs to the field of switchgear technology. The smart miniature circuit breaker includes a miniature circuit breaker body, a measurement and control module installed on the wiring side of the miniature circuit breaker body, and an electric operating module installed on the side of the miniature circuit breaker body. The electric operating module is spliced ​​to the miniature circuit breaker body, and the measurement and control module is plugged into the electric operating module. The bottom of the measurement and control module is provided with an outwardly extending conductive contact piece, which is inserted into the miniature circuit breaker body and can be securely assembled with the wiring terminals of the miniature circuit breaker body using fasteners. Advantages: Simple structure, flexible and robust assembly, and reduced cost of intelligent transformation.

Description

Technical Field

[0001] This utility model belongs to the field of switchgear technology, specifically relating to an intelligent miniature circuit breaker. Background Technology

[0002] As my country's power supply network gradually becomes intelligent, the State Grid Corporation of China is also demanding increasingly intelligent power supply equipment. Intelligent miniature circuit breakers integrate functions such as power measurement, electric closing and opening, multi-functional protection, and communication into the basic miniature circuit breaker, representing an upgraded replacement for traditional miniature circuit breakers.

[0003] Intelligent miniature circuit breakers are primarily integrated products. In this type of circuit breaker, the measuring components are integrated within the miniature circuit breaker's housing. They simply convert current and voltage into electrical signals that can be sampled by the control components. These signals must be electrically connected to the control components, making decoupling between the measuring components, control components, and the miniature circuit breaker impossible. In intelligent retrofit applications, replacing existing miniature circuit breakers with integrated intelligent miniature circuit breakers presents the following problems: high component replacement costs, and the need for rewiring within the existing distribution box, resulting in cumbersome procedures, significant time consumption, low production efficiency, and poor cost-effectiveness, hindering widespread adoption.

[0004] In view of the aforementioned existing technology, it is necessary to improve the structure of existing intelligent miniature circuit breakers. To this end, the applicant has made beneficial designs, and the technical solution described below is the result of this design. Utility Model Content The purpose of this utility model is to provide an intelligent miniature circuit breaker that is simple in structure, flexible and sturdy in assembly, and can reduce the cost of intelligent transformation.

[0005] The purpose of this utility model is achieved as follows: an intelligent miniature circuit breaker includes a miniature circuit breaker body, a measurement and control module installed on the wiring side of the miniature circuit breaker body, and an electric operating module installed on the side of the miniature circuit breaker body. The electric operating module is characterized in that: the electric operating module is spliced ​​with the miniature circuit breaker body; the measurement and control module is plugged into the electric operating module; the bottom of the measurement and control module is provided with an outwardly extending conductive contact piece; the conductive contact piece is inserted into the miniature circuit breaker body and can be securely assembled with the wiring terminals of the miniature circuit breaker body using fasteners.

[0006] In a specific embodiment of this utility model, the electric operation module is provided with a buckle and a first plug-in part. The buckle is used to be spliced ​​and locked with the bayonet on the miniature circuit breaker body, and the first plug-in part is used to be plugged into the second plug-in part on the measurement and control module.

[0007] In another specific embodiment of this utility model, the measurement and control module has a through hole for the live wire to pass through through the top and bottom. The measurement and control module is also provided with a wire for connecting to the neutral wire or neutral wire. When a live wire passes through the through hole and enters the terminal block, the terminal block, conductive contact piece and live wire are fastened together by fasteners. The conductive contact piece draws power from the terminal block and works with the wire to supply power to the measurement and control module.

[0008] In another specific embodiment of this utility model, the measurement and control module is provided with a first light-transmitting hole on the side facing the electric operation module, and the electric operation module is provided with a second light-transmitting hole at the position corresponding to the first light-transmitting hole. After the measurement and control module and the electric operation module are installed and fixed, the first light-transmitting hole and the second light-transmitting hole are aligned, so as to realize optical signal communication between the measurement and control module and the electric operation module.

[0009] In another specific embodiment of the present invention, the measurement and control module has a third plug-in portion on the surface facing away from the electric operation module and corresponding to the second plug-in portion. The third plug-in portion cooperates with the second plug-in portion to realize the plug-in between the multiple measurement and control modules.

[0010] In another specific embodiment of this utility model, the electric operating module is further provided with a lever that is linked to the buckle. When the lever is pushed, the buckle moves and locks with the latch, thereby realizing the splicing and locking of the electric operating module and the miniature circuit breaker body.

[0011] In another specific embodiment of this utility model, the miniature circuit breaker body is provided with the bayonet on the upper and lower parts of the side facing the electric operating module, and the measurement and control module is provided with a pair of second plug-in parts spaced apart on the left and right sides near the top of the side facing the electric operating module. The electric operating module forms a buckle corresponding to the number and position of the bayonet and a first plug-in part corresponding to the number and position of the second plug-in parts on the side facing the miniature circuit breaker body and the measurement and control module.

[0012] Due to the aforementioned structure, this utility model offers several advantages over existing technologies: The overall structure is simple, and the miniature circuit breaker body, measurement and control module, and electric operation module are assembled flexibly and robustly, reducing component replacement costs and facilitating wiring, thus improving the cost-effectiveness of intelligent transformation. The measurement and control module can measure the electrical parameters of the main circuit and, through communication with the electric operation module, control the opening and closing of the miniature circuit breaker body and read its operating status information. The electric operation module can control the miniature circuit breaker body to perform opening and closing operations and detect its operating status information, thereby enabling rapid measurement and uploading of power distribution circuit data, as well as control and monitoring of the miniature circuit breaker body's status. Furthermore, the measurement and control module and the electric operation module communicate via optical signals for data transmission, providing strong anti-interference capabilities. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is an assembly diagram of the present invention; Figure 3 This is a schematic diagram of the miniature circuit breaker body and the measurement and control module facing the electric operation module.

[0014] In the diagram: 1. Miniature circuit breaker body, 11. Bayonet, 12. Wiring port, 13. Screw hole; 2. Measurement and control module, 21. Second plug-in part, 22. Conductive contact piece, 23. First light-transmitting hole, 24. Third plug-in part, 25. Wire, 26. Wire hole; 3. Electric operation module, 31. Buckle, 32. First plug-in part, 33. Second light-transmitting hole, 34. Paddle. Detailed Implementation

[0015] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. However, the description of the embodiments is not a limitation on the technical solution. Any formal but not substantive changes made based on the concept of this utility model should be considered within the protection scope of this utility model.

[0016] In the following description, all directional (or orientational) concepts involving up, down, left, right, front, and back refer to the position of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be construed as a special limitation on the technical solution provided by this utility model.

[0017] Please see Figures 1 to 3This utility model relates to an intelligent miniature circuit breaker, comprising a miniature circuit breaker body 1, a measurement and control module 2 installed on the wiring side of the miniature circuit breaker body 1, and an electric operating module 3 installed on the side of the miniature circuit breaker body 1. The electric operating module 3 is provided with a latch 31 and a first plug-in portion 32, wherein the latch 31 is used to engage and lock with a latch 11 on the miniature circuit breaker body 1, and the first plug-in portion 32 is used to plug into a second plug-in portion 21 on the measurement and control module 2. The miniature circuit breaker body 1 is used to connect or disconnect the main circuit; the measurement and control module 2 is used to measure the electrical parameters of the main circuit, and also controls the electric operating module 3 to close or open the miniature circuit breaker body 1 by communicating with the electric operating module 3, and reads the operating status information of the miniature circuit breaker body 1; the electric operating module 3 is used to control the miniature circuit breaker body 1 to perform closing and opening operations, and detects the operating status information of the miniature circuit breaker body 1. This utility model, through the cooperation of the miniature circuit breaker body 1, the measurement and control module 2, and the electric operation module 3, can quickly realize the measurement and uploading of power in the power distribution circuit, as well as the control and monitoring of the status of the miniature circuit breaker body.

[0018] In this embodiment, the miniature circuit breaker body 1 has the bayonet 11 on the upper and lower parts of the side facing the electric operating module 3, and the measurement and control module 2 has a pair of second plug-in parts 21 spaced apart on the left and right sides near the top of the side facing the electric operating module 3. The electric operating module 3 has a buckle 31 corresponding to the number and position of the bayonet 11 and a first plug-in part 32 corresponding to the number and position of the second plug-in part 21 on the side facing the miniature circuit breaker body 1 and the measurement and control module 2, that is, there are two buckles 31 and two first plug-in parts 32.

[0019] Furthermore, the electric operating module 3 is also provided with paddles 34 that are linked to the latch 31. The number and position of the paddles 34 correspond to those of the latch 31. In this embodiment, preferably, the paddles 34 located at the upper part of the electric operating module 3 are pushed downward, while the paddles 34 located at the lower part are pushed inward into the electric operating module 3. After the latch 31 moves, it locks with the bayonet 11, so that the electric operating module 3 and the miniature circuit breaker body 1 are spliced ​​and locked together.

[0020] The measurement and control module 2 inserts its second connector 21 into the first connector 32 of the electric operating module 3 from above the wiring side of the miniature circuit breaker body 1 to achieve assembly connection with the electric operating module 3. At the same time, the measurement and control module 2 is provided with an outwardly extending conductive contact piece 22 at the bottom, and a through hole 26 penetrating the top and bottom. The through hole 26 allows the live wire to pass through. The conductive contact piece 22 can be made of a material with good conductivity, such as copper. The miniature circuit breaker body 1 is provided with a wiring port 12, and a wiring terminal is provided in the wiring port 12. The conductive contact piece 22 is inserted into the wiring port 12 above the wiring side of the miniature circuit breaker body 1 and closely abuts the wiring terminal. The conductive contact piece 22 can be fastened to the wiring terminal by fasteners.

[0021] When a live wire is connected, it passes through the through-hole 26 and connects to the terminal 12. The miniature circuit breaker body 1 has a screw hole 13 on its wall facing the inserted conductive contact piece 22. An adjusting screw passes through the screw hole 13 and adjusts the crimping device to press the terminal, conductive contact piece 22, and live wire together. This achieves electrical connection between the live wire, conductive contact piece 22, and terminal, while also making the installation and fixation of the measurement and control module 2 with the miniature circuit breaker body 1 and the electric operation module 3 more reliable. The adjusting screw and the crimping device constitute the fasteners. The crimping device can be a metal part, metal frame, or other commonly used crimping structures.

[0022] The aforementioned connection structure also achieves the locking of the measurement and control module 2 with the miniature circuit breaker body 1. Furthermore, the measurement and control module 2 is also provided with a conductor 25 for connecting to the neutral or neutral wire. The conductive contact piece 22 draws power from the live wire connection line or terminal block and works with the conductor 25 to supply power to the measurement and control module 2. The conductor 25 can be connected to the user's neutral or neutral wire terminal.

[0023] The measurement and control module 2 has a first light-transmitting hole 23 on the side facing the electric operation module 3, and the electric operation module 3 has a second light-transmitting hole 33 at the position corresponding to the first light-transmitting hole 23. After the measurement and control module 2 and the electric operation module 3 are installed and fixed, the first light-transmitting hole 23 and the second light-transmitting hole 33 are aligned, which can realize optical signal communication between the measurement and control module 2 and the electric operation module 3 and has strong anti-interference ability.

[0024] The measurement and control module 2 can be used independently as a measurement module, or multiple modules can be connected together for combined use. Specifically, on the surface of the measurement and control module 2 facing away from the electric operation module 3, that is, on the surface opposite to the surface with the second plug-in part 21, a third plug-in part 24 is provided corresponding to the second plug-in part 21. When there are multiple measurement and control modules 2, the third plug-in part 24 can cooperate with the second plug-in part 21 to realize the connection between the multiple measurement and control modules 2.

[0025] The first plug-in portion 32, the second plug-in portion 21, and the third plug-in portion 24 described above can be configured such that the first plug-in portion 32 is a groove, the second plug-in portion 21 is a boss, and the third plug-in portion 24 is a groove; or they can be configured such that the first plug-in portion 32 is a boss, the second plug-in portion 21 is a groove, and the third plug-in portion 24 is a boss; preferably, the first plug-in portion 32 and the third plug-in portion 24 have the same structure.

[0026] For example, the first insertion part 32 is set as a groove with a certain length, and the second insertion part 21 is a boss with a length corresponding to the length of the groove. During assembly, one end of the boss of the measurement and control module 2 is inserted into the groove of the electric operation module 3, and the measurement and control module 2 is assembled from top to bottom until the boss is completely inserted into the groove to complete the assembly.

[0027] In the above description, the directional terms "up" and "down" are not strictly defined and are based on the accompanying diagrams in the instruction manual. When the product is placed in a different orientation, the terms will be changed accordingly.

[0028] The present invention has a simple overall structure. The miniature circuit breaker body, the measurement and control module and the electric operation module are assembled flexibly and firmly. It also enables convenient power supply to the measurement and control module. In the process of intelligent transformation, it can reduce the cost of component replacement and facilitate wiring, which is conducive to reducing the cost of intelligent transformation. Therefore, the invention achieves its purpose.

Claims

1. A smart miniature circuit breaker, comprising a miniature circuit breaker body (1), a measurement and control module (2) installed on the wiring side of the miniature circuit breaker body (1), and an electric operating module (3) installed on the side of the miniature circuit breaker body (1), characterized in that: The electric operation module (3) is spliced ​​with the miniature circuit breaker body (1), and the measurement and control module (2) is plugged into the electric operation module (3). The bottom of the measurement and control module (2) is provided with an outwardly extending conductive contact piece (22). The conductive contact piece (22) is inserted into the miniature circuit breaker body (1) and can be fastened to the wiring terminals of the miniature circuit breaker body (1) by fasteners.

2. The intelligent miniature circuit breaker according to claim 1, characterized in that: The electric operation module (3) is provided with a buckle (31) and a first plug-in part (32). The buckle (31) is used to be spliced ​​and locked with the bayonet (11) on the miniature circuit breaker body (1). The first plug-in part (32) is used to be plugged into the second plug-in part (21) on the measurement and control module (2).

3. The intelligent miniature circuit breaker according to claim 1, characterized in that: The measurement and control module (2) has a through hole (26) through the top and bottom for the live wire to pass through. The measurement and control module (2) is also provided with a conductor (25) for connecting to the neutral wire or neutral wire. When a live wire passes through the through hole (26) and is connected to the terminal block, the terminal block, the conductive contact piece (22) and the live wire are fastened together by fasteners. The conductive contact piece (22) draws power from the terminal block and works with the conductor (25) to supply power to the measurement and control module (2).

4. The intelligent miniature circuit breaker according to claim 1, characterized in that: The measurement and control module (2) has a first light-transmitting hole (23) on the side facing the electric operation module (3), and the electric operation module (3) has a second light-transmitting hole (33) at the position corresponding to the first light-transmitting hole (23). After the measurement and control module (2) and the electric operation module (3) are installed and fixed, the first light-transmitting hole (23) and the second light-transmitting hole (33) are aligned, so as to realize optical signal communication between the measurement and control module (2) and the electric operation module (3).

5. The intelligent miniature circuit breaker according to claim 2, characterized in that: The measurement and control module (2) has a third plug-in part (24) on the side facing away from the electric operation module (3) and corresponding to the second plug-in part (21). The third plug-in part (24) cooperates with the second plug-in part (21) to realize the plug-in between the multiple measurement and control modules (2).

6. The intelligent miniature circuit breaker according to claim 2, characterized in that: The electric operation module (3) is also provided with a lever (34) that is linked to the buckle (31). When the lever (34) is pushed, the buckle (31) moves and locks with the slot (11), thereby realizing the splicing and locking of the electric operation module (3) and the miniature circuit breaker body (1).

7. The intelligent miniature circuit breaker according to claim 2, characterized in that: The miniature circuit breaker body (1) has the bayonet (11) on the upper and lower parts of the side facing the electric operation module (3). The measurement and control module (2) has a pair of second plug-in parts (21) spaced apart on the left and right sides near the top of the side facing the electric operation module (3). The electric operation module (3) has a buckle (31) corresponding to the number and position of the bayonet (11) and a first plug-in part (32) corresponding to the number and position of the second plug-in part (21) on the side facing the miniature circuit breaker body (1) and the measurement and control module (2).

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