A modular miniature circuit breaker

Abstract

The utility model discloses a modularization miniature circuit breaker, its technical scheme main points have operation module group and electronic module, and operation module group includes the operation module of multiple sets of alignment in proper order, and electronic module includes electric operation bottom and electric operation cover, and electric operation bottom detachable installation in the one side of electric operation cover, and electric operation cover detachable installation in the one side of operation module group, and the line cavity is formed between electric operation bottom and electric operation cover, and the link cavity is formed between electric operation cover and operation module group, and this modularization miniature circuit breaker can carry out electromechanical separation, and the convenience of operation is improved.

Description

Technical Field

[0001] This utility model relates to a circuit breaker, and more specifically, to a modular miniature circuit breaker. Background Technology

[0002] The four-in-one miniature circuit breaker (MCB) is an intelligent terminal power distribution device that integrates "monitoring, control, protection, and communication" functions. Its core design breaks through the traditional circuit breaker's single protection function. By integrating high-precision sensors, intelligent control modules, and communication interfaces, it achieves real-time perception of circuit status, remote control, precise protection, and data interaction, meeting the dual needs of industrial, commercial, and civil buildings for power safety and energy efficiency management.

[0003] The existing four-integrated circuit breaker is an integrated structure, which means that the physical actions of the mechanical system (such as contact opening and closing, arc extinguishing) are closely combined with the information processing of the electronic system (such as signal acquisition and logical judgment) to form a closed-loop control of "sensing-decision-execution".

[0004] While the mechatronics integration of circuit breakers brings significant advantages such as intelligence, high reliability, and functional expansion, it also has some drawbacks in practical applications. The most troublesome of these is that the mechanical or electronic systems in the circuit breaker need to be completely disassembled when maintenance is required, and the entire circuit breaker must also be disassembled when the electronic system needs to be upgraded. The process is cumbersome, time-consuming, and labor-intensive. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a modular miniature circuit breaker that can separate electromechanical components and improve the convenience of operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular miniature circuit breaker, comprising an operation module group and an electronic module, wherein the operation module group comprises multiple sets of operation modules arranged in sequence; The electronic module includes an electric control base and an electric control cover. The electric control base is detachably installed on one side of the electric control cover, and the electric control cover is detachably installed on one side of the operation module assembly. A circuit cavity is formed between the electric control base and the electric control cover; A connecting cavity is formed between the electric control cover and the operation module group.

[0007] The present invention is further configured such that: a circuit board is provided inside the circuit cavity, and multiple sets of first through slots are provided through the electric control cover.

[0008] The present invention is further configured such that: the operating module near the electronic module includes a circuit breaker bottom and a circuit breaker cover, the circuit breaker bottom and the circuit breaker cover together form an operating cavity, the circuit breaker cover has a mounting part protruding on the side facing the electric operating cover, and a connecting cavity is formed between the electric operating cover and the mounting part; The circuit breaker cover has a wire hole that connects the operating chamber and the connecting chamber.

[0009] The present invention is further configured such that: a connecting plate and a connecting cover are provided inside the connecting cavity, and the connecting cover is detachably installed on the mounting part and is used to limit and fix the connecting plate.

[0010] The present invention is further configured such that: a plurality of second through slots are provided through the connecting cover, and the second through slots and the first through slots are connected in a one-to-one correspondence; The connecting plate is provided with multiple sets of wiring terminals, and the wiring terminals are inserted one-to-one into the second through slot.

[0011] The present invention is further configured such that: both sides of the circuit breaker cover and the electric control cover are provided with connecting grooves, and the circuit breaker cover and the electric control cover are connected by an electric control connecting buckle.

[0012] The present invention is further configured such that: the operating cavity is provided with a locking mechanism, a motor tripping mechanism, a magnetic tripping mechanism, a leakage current tripping component, and a handle mechanism, wherein the motor tripping mechanism and the magnetic tripping mechanism are linked with the locking mechanism through the leakage current tripping component; The handle mechanism and the locking mechanism are linked together.

[0013] The present invention is further configured such that a leakage current detection mechanism is provided on one side of the handle mechanism.

[0014] The present invention is further configured such that: the leakage current detection mechanism includes a detection button and a detection spring, and the bottom of the circuit breaker is provided with a first detection post and a second detection post, and when the detection button is pressed, the detection spring abuts against the first detection post and the second detection post.

[0015] In summary, this utility model has the following beneficial effects: by adopting the concept of motor separation, electronic components such as circuit boards are centrally installed in the electronic module, and the locking mechanism, motor tripping mechanism, magnetic tripping mechanism, leakage tripping component and handle mechanism are centrally installed in the operating module. Then, the electronic components and the operating mechanism are connected by wires to achieve electromechanical separation, which can improve the convenience of operation when maintaining and replacing parts in the future. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a miniature circuit breaker; Figure 2This is a schematic diagram of the separate structure of the electronic module; Figure 3 This is a schematic diagram of the internal structure of the operation module; Figure 4 for Figure 3 Enlarged diagram of point A.

[0017] Reference numerals: 1. Operating module group; 11. Circuit breaker bottom; 12. Circuit breaker cover; 121. Wire hole; 13. Operating cavity; 14. Mounting part; 15. Connecting groove; 16. Electric operating connection buckle; 2. Electronic module; 3. Electric operating bottom; 4. Electric operating cover; 41. First through groove; 5. Circuit cavity; 51. Circuit board; 6. Connecting cavity; 61. Connecting plate; 62. Connecting cover; 63. Second through groove; 64. Terminal block; 7. Locking mechanism; 71. Motor tripping mechanism; 72. Magnetic tripping mechanism; 73. Leakage tripping component; 74. Handle mechanism; 8. Leakage detection mechanism; 81. Detection button; 82. Detection spring; 83. First detection post; 84. Second detection post. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0019] Reference Figures 1 to 4 As shown, in order to achieve the above objectives, the present invention provides the following technical solution: a modular miniature circuit breaker, comprising an operation module group 1 and an electronic module 2, wherein the operation module group 1 comprises multiple groups of operation modules arranged in sequence; The electronic module 2 includes an electric operating base 3 and an electric operating cover 4. The electric operating base 3 is detachably installed on one side of the electric operating cover 4, and the electric operating cover 4 is detachably installed on one side of the operating module group 1. A circuit cavity 5 is formed between the electric control base 3 and the electric control cover 4; A connecting cavity 6 is formed between the electric control cover 4 and the operation module group 1.

[0020] The design of this utility model adopts the concept of motor separation. Electronic components such as circuit board 51 are centrally installed in electronic module 2, and locking mechanism 7, motor tripping mechanism 71, magnetic tripping mechanism 72, leakage tripping component 73 and handle mechanism 74 are centrally installed in operating module. The electronic components and operating mechanism are then connected by wires to achieve electromechanical separation, which can improve the convenience of operation when maintaining and replacing parts.

[0021] The present invention is further configured such that: a circuit board 51 is provided inside the circuit cavity 5, and multiple sets of first through slots 41 are provided through the electric operating cover 4.

[0022] The design of the first through slot 41 facilitates the connection between the circuit cavity 5 and the connecting cavity 6, and also makes it convenient to place the circuit board 51 and the connecting board 61 in separate cavities.

[0023] The present invention is further configured such that: the operation module near the electronic module 2 includes a circuit breaker bottom 11 and a circuit breaker cover 12, the circuit breaker bottom 11 and the circuit breaker cover 12 together form an operation cavity 13, the circuit breaker cover 12 has a mounting part 14 protruding on the side facing the electric operation cover 4, and a connecting cavity 6 is formed between the electric operation cover 4 and the mounting part 14. The circuit breaker cover 12 has a wire hole 121 that connects the operating chamber 13 and the connecting chamber 6.

[0024] The design of this structure saves space. The circuit breaker cover 12 and the electric control cover 4 are directly enclosed to form a connection cavity 6 for the installation of the connection plate 61, saving additional shell structure and improving space utilization.

[0025] The present invention is further configured such that: a connecting plate 61 and a connecting cover 62 are provided in the connecting cavity 6, the connecting cover 62 is detachably installed on the mounting part 14, and is used to limit and fix the connecting plate 61.

[0026] The present invention is further configured such that: a plurality of second through slots 63 are provided through the connecting cover 62, and the second through slots 63 and the first through slots 41 are connected in a one-to-one correspondence; The connecting plate 61 is provided with multiple sets of wiring terminals 64, and the wiring terminals 64 are inserted one-to-one into the second through slot 63.

[0027] The design of this structure involves first placing the connecting plate 61 inside the mounting part 14, then installing the connecting cover 62 on the mounting part 14 and tightening it with bolts. At this time, the wiring terminals 64 on the connecting plate 61 pass through the second through slot 63 and the first through slot 41 in sequence, and the circuit board 51 can achieve the final connection with the wiring terminals 64 through the wires.

[0028] This utility model is further configured such that: both sides of the circuit breaker cover 12 and the electric control cover 4 are provided with connecting grooves 15, and the circuit breaker cover 12 and the electric control cover 4 are connected by an electric control connecting buckle 16. Figure 2 As shown, the design of the connecting groove 15 and the electrically operated connecting buckle 16 can provide a preliminary limit for the connection between the two, which facilitates subsequent bolt fixing.

[0029] The present invention is further configured such that: the operating cavity 13 is provided with a locking mechanism 7, a motor tripping mechanism 71, a magnetic tripping mechanism 72, a leakage current tripping component 73 and a handle mechanism 74, and the motor tripping mechanism 71 and the magnetic tripping mechanism 72 are linked with the locking mechanism 7 through the leakage current tripping component 73; The handle mechanism 74 is linked with the locking mechanism 7.

[0030] The design of this structure allows for ample space inside the operating module after the circuit board 51 and the connecting board 61 are installed independently.

[0031] Therefore, additional functional structures can be added to the original space. For example, in the previous operating cavity 13, there are electronic components such as circuit board 51, so there is only enough space for the installation of magnetic tripping mechanism 72. However, in this application, space can be arranged for motor tripping mechanism 71 in the original space.

[0032] The locking mechanism 7 and the handle mechanism 74 are designed using existing technology, and will not be described in detail here.

[0033] When a corresponding situation occurs inside the circuit breaker, the magnetic tripping mechanism 72 can push the leakage current tripping element 73 to rotate, thereby causing the locking mechanism 7 to trip. The specific structure is shown in the attached diagram. Figure 3 For example.

[0034] The motor tripping mechanism 71 may include the following structure: a drive motor, a worm gear, a worm wheel, and a transmission gear set. The drive motor drives the worm wheel to rotate through the worm gear. The worm wheel and the transmission gear set are linked. Under the premise of meeting the space and transmission requirements, a transmission block is provided on the outermost transmission gear. The transmission block can push the leakage tripping component 73 to rotate under the rotation of the transmission gear, thereby realizing the tripping operation.

[0035] The transmission gear can have the following structure: including a first small transmission gear, a second small transmission gear, a third small transmission gear, a first large transmission gear, and a second large transmission gear. The first small transmission gear is fixedly connected to the worm gear. The first large transmission tooth meshes with the first small transmission tooth and is fixedly connected to the second small transmission tooth. The second large transmission tooth meshes with the second small transmission tooth and is fixedly connected to the third small transmission tooth; The third small transmission tooth is meshed with the transmission gear.

[0036] The drive motor is connected to the circuit board 51, and remote control is achieved through the remote control module on the circuit board 51.

[0037] The present invention is further configured such that a leakage current detection mechanism 8 is provided on one side of the handle mechanism 74.

[0038] The present invention is further configured such that: the leakage current detection mechanism 8 includes a detection button 81 and a detection spring 82, and a first detection post 83 and a second detection post 84 are provided on the bottom 11 of the circuit breaker. When the detection button 81 is pressed, the detection spring 82 abuts against the first detection post 83 and the second detection post 84.

[0039] Operating procedure: The user can press the test button 81 (usually marked with "T" or a test icon) on the circuit breaker body to simulate a leakage current signal and trigger a trip. If the circuit breaker can be reset after tripping, it indicates that the switch is normal; if it does not trip, the protector needs to be replaced.

[0040] By cleverly utilizing the limiting groove structure naturally formed between the first detection post 83 and the circuit breaker housing, the detection spring 82 can be quickly and accurately inserted, ensuring that the spring is stably limited and fixed in the vertical direction. Subsequently, the housing on the other side is installed and fixed. This step not only completes the overall assembly work but also simultaneously achieves omnidirectional limiting and stabilization of the detection spring 82.

[0041] Therefore, this design exhibits extremely high ease of assembly.

[0042] Furthermore, by replacing the original spring design with a spring-loaded structure, cost savings and structural optimization were further achieved.

[0043] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A modular miniature circuit breaker, characterized in that: It includes an operation module group (1) and an electronic module (2), wherein the operation module group (1) includes multiple groups of operation modules arranged in sequence; The electronic module (2) includes an electric operating base (3) and an electric operating cover (4). The electric operating base (3) is detachably installed on one side of the electric operating cover (4), and the electric operating cover (4) is detachably installed on one side of the operation module group (1). A circuit cavity (5) is formed between the electric operating bottom (3) and the electric operating cover (4); A connecting cavity (6) is formed between the electric control cover (4) and the operation module group (1).

2. A modular miniature circuit breaker according to claim 1, characterized in that: A circuit board (51) is provided inside the circuit cavity (5), and multiple sets of first through slots (41) are provided through the electric control cover (4).

3. A modular miniature circuit breaker according to claim 2, characterized in that: The operation module near the electronic module (2) includes a circuit breaker bottom (11) and a circuit breaker cover (12). The circuit breaker bottom (11) and the circuit breaker cover (12) together form an operation cavity (13). The circuit breaker cover (12) has a mounting part (14) protruding on the side facing the electric operating cover (4). A connecting cavity (6) is formed between the electric operating cover (4) and the mounting part (14). The circuit breaker cover (12) has a wire hole (121) that connects the operating chamber (13) and the connecting chamber (6).

4. A modular miniature circuit breaker according to claim 3, characterized in that: The connecting cavity (6) is provided with a connecting plate (61) and a connecting cover (62). The connecting cover (62) is detachably installed on the mounting part (14) and is used to limit and fix the connecting plate (61).

5. A modular miniature circuit breaker according to claim 4, characterized in that: The connecting cover (62) is provided with multiple sets of second through slots (63), and the second through slots (63) and the first through slots (41) are connected in a one-to-one correspondence; The connecting plate (61) is provided with multiple sets of wiring terminals (64), and the wiring terminals (64) are inserted one-to-one into the second through slot (63).

6. A modular miniature circuit breaker according to claim 3, characterized in that: Both sides of the circuit breaker cover (12) and the electric control cover (4) are provided with connecting grooves (15), and the circuit breaker cover (12) and the electric control cover (4) are connected by an electric control connecting buckle (16).

7. A modular miniature circuit breaker according to claim 3, characterized in that: The operating cavity (13) is provided with a locking mechanism (7), a motor tripping mechanism (71), a magnetic tripping mechanism (72), a leakage current tripping component (73), and a handle mechanism (74). The motor tripping mechanism (71) and the magnetic tripping mechanism (72) are linked with the locking mechanism (7) through the leakage current tripping component (73). The handle mechanism (74) is linked to the locking mechanism (7).

8. A modular miniature circuit breaker according to claim 7, characterized in that: A leakage current detection mechanism (8) is provided on one side of the handle mechanism (74).

9. A modular miniature circuit breaker according to claim 8, characterized in that: The leakage current detection mechanism (8) includes a detection button (81) and a detection spring (82). The circuit breaker bottom (11) is provided with a first detection post (83) and a second detection post (84). When the detection button (81) is pressed, the detection spring (82) abuts against the first detection post (83) and the second detection post (84).

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