Compact high-performance circuit breaker

Abstract

The utility model provides a compact high-performance circuit breaker, which relates to the technical field of circuit breakers and comprises a substrate, the top surface and the bottom surface of the substrate are respectively provided with a group of dovetail grooves, a circuit breaker body is slidably connected in the two groups of dovetail grooves, and the top and the bottom of the circuit breaker body are respectively provided with two groups of fixing grooves. By adopting the arrangement of the limiting frame, the connecting rod, the spring, the limiting block, the convenient block, the limiting groove and the rotating frame, the connection stability of the circuit breaker body and the electric wire is effectively enhanced, the limiting block is always kept in a crimping state through the pretightening force of the spring, and the hidden danger of poor contact caused by mechanical vibration or external force is eliminated. The linkage structure of the rotating frame and the limiting groove ensures reliable locking, limiting of the limiting block can be relieved through simple operation, wiring maintenance is facilitated, the dovetail groove guide design enables the circuit breaker body to stably slide along the base plate and be accurately positioned, installation and adjustment are facilitated, and the reliability of the circuit breaker is improved. Therefore, the electrical connection reliability and the operation convenience of the product are obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a compact high-performance circuit breaker. Background Technology

[0002] According to a compact circuit breaker disclosed in Chinese Publication No. CN217768252U, which relates to the field of circuit breaker technology, the compact circuit breaker includes a circuit breaker body and an upper locking block. A lower locking block is fixedly connected to the lower back of the circuit breaker body, and a positioning block is fixedly connected to the upper back of the circuit breaker body. A first sliding groove is provided on one side of the positioning block, and a sliding strip is fixedly connected to one side of the upper locking block. It is easy to assemble and disassemble, convenient to maintain, and has high maintenance efficiency. The first magnetic block and the second magnetic block are magnetically connected to fix the upper locking block. When installing the circuit breaker body, there is no need to worry about the upper locking block falling and affecting the installation. It is highly practical. When the wire end is inserted into the fixing groove, the pressing plate presses down the pressing block to fix the wire end. The top block pushes the pressing plate to fit against the inner wall of the groove to fix the pressing plate, completing the wiring. Pushing the top block away from the pressing plate and pulling the pressing plate can release the pressing block from the wire end, thus facilitating wiring and disconnection.

[0003] However, the above-mentioned devices have the following problems: the fixing slots and wire connection structures in the circuit breaker body generally have complex limiting devices and numerous parts, which not only increases production costs but also leads to cumbersome installation and operation. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a compact, high-performance circuit breaker.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a substrate, and a set of dovetail grooves are respectively opened on the top and bottom surfaces of the substrate. A circuit breaker body is slidably connected in the two sets of dovetail grooves. The top and bottom of the circuit breaker body are provided with two sets of fixing grooves, and a limiting frame is provided in the fixing grooves.

[0006] Preferably, two sets of external blocks are provided at the top and bottom of one end of the substrate, and an external groove is opened inside the external block, and an external screw is threaded into the external groove.

[0007] Preferably, three sets of grooves are provided on both sides of the circuit breaker body.

[0008] Preferably, one end of the limiting frame is provided with a through groove, and a connecting rod is slidably connected inside the through groove, with a spring sleeved on one end of the surface of the connecting rod.

[0009] Preferably, a limit block is provided at one end of the spring and the connecting rod, and the limit block is slidably connected to the inside of the limit frame.

[0010] Preferably, the other end of the spring is disposed around the inner port of the through groove, a limiting groove is formed in the middle of the surface of the connecting rod, and a convenient block is provided at the other end of the connecting rod.

[0011] Preferably, a rotating frame is rotatably connected to one side of the convenient block, and one side of the rotating frame is adapted to the interior of the limiting groove.

[0012] Beneficial effects

[0013] This invention employs a limiting frame, connecting rod, spring, limiting block, convenient block, limiting groove, and rotating frame, effectively enhancing the connection stability between the circuit breaker body and the wire. The spring preload ensures the limiting block remains in a pressed state, eliminating potential contact problems caused by mechanical vibration or external forces. The linkage structure between the rotating frame and the limiting groove ensures reliable locking while allowing for easy release of the limiting block's position, facilitating wiring maintenance. The dovetail guide design allows the circuit breaker body to slide smoothly and accurately along the base plate, facilitating installation and adjustment, thus significantly improving the electrical connection reliability and operational convenience of the product. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0015] Figure 2 This is a side view of the present invention;

[0016] Figure 3 This is a top view of the limiting frame of this utility model;

[0017] Figure 4 This is a structural diagram of the limiting frame, spring, connecting rod, and limiting block of this utility model.

[0018] Legend:

[0019] 1. Base plate; 2. Circuit breaker body; 3. Limiting frame; 4. External block; 5. External screw; 6. Groove; 7. Connecting rod; 8. Spring; 9. Limiting block; 10. Limiting groove; 11. Convenience block; 12. Rotating frame. Detailed Implementation

[0020] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0023] Reference Figure 1-4 A compact, high-performance circuit breaker includes a base plate 1, which serves as the basic connecting component and is made of high-strength conductive metal material. A set of axially symmetrical dovetail grooves are formed on the top and bottom surfaces of the base plate 1. The surfaces of the dovetail grooves are tin-plated to enhance their conductivity and oxidation resistance. A circuit breaker body 2 is slidably connected to the two sets of dovetail grooves. When the circuit breaker body 2 slides inside the dovetail grooves, friction exists on the contact surfaces, requiring a relative external force for the circuit breaker body 2 to move within the dovetail grooves. Without external force, due to friction, the circuit breaker body 2 remains stationary on the dovetail grooves of the base plate 1. The circuit breaker body features compactness and high performance, enabling the circuit breaker body 2 to slide with the base plate 1 via the dovetail grooves. This ensures connection stability and facilitates the installation and disassembly of the circuit breaker body 2. Two sets of fixing grooves are provided at the top and bottom of the circuit breaker body 2 for electrical connection with external wires. A limit frame 3 is provided at the top of the fixing groove, extending vertically to facilitate subsequent positioning and protection of the wires. After stripping one end of the wire, it is inserted into the limiting frame 3, and then the fixing screw is screwed into the fixing groove. The insertion method of the wire and the design of the fixing groove adopt the common design of existing circuit breakers. The principle will not be explained in detail here.

[0024] Two sets of external blocks 4 are provided on both the top and bottom sides of the substrate 1. Each external block 4 has an internal external groove, and an external screw 5 is threaded into the groove. The external screw 5 allows for secure connection to external equipment or other substrates 1. The external blocks 4 are integrally formed with the substrate 1. The external grooves are manufactured using high-precision drilling and tapping processes to ensure the external screw 5 can be smoothly screwed in and tightly connected. Three sets of grooves 6 are provided on both sides of the circuit breaker body 2. These grooves increase the friction between the circuit breaker body 2 and the operator's hands, facilitating better movement of the circuit breaker body 2 on the substrate 1.

[0025] One end of the limiting frame 3 has a through groove, and a connecting rod 7 is slidably connected inside the through groove. A spring 8 is sleeved on one end of the surface of the connecting rod 7. The spring 8 is located inside the limiting frame 3 and is made of high-quality spring steel to ensure stable elasticity during use. A limiting block 9 is fixedly set on one end of the spring 8 and the connecting rod 7. Multiple sets of limiting teeth are set on the side of the limiting block 9 away from the spring 8 and the connecting rod 7 to facilitate better clamping of the wire. The limiting block 9 is slidably connected inside the limiting frame 3. The other end of the spring 8 is set around the inner port of the through groove. A limiting groove 10 is opened in the middle of the surface of the connecting rod 7. A convenient block 11 is set on the other end of the connecting rod 7. A rotating frame 12 is rotatably connected to one side of the convenient block 11. One side of the rotating frame 12 is adapted to the inside of the limiting groove 10. Specific Implementation Example 2:

[0027] A compact, high-performance circuit breaker, further based on the basic structure in Specific Embodiment 1, operates as follows: First, check whether the base plate 1, circuit breaker body 2, and other components are damaged, and prepare external screws 5, wiring tools, and protective equipment; then, fix the base plate 1, connect external equipment with external screws 5, embed the circuit breaker body 2 into the dovetail groove of the base plate 1, and move the circuit breaker body 2 to a suitable position. Pull the convenient block 11, causing the connecting rod 7 to slide in the through groove, compressing the spring 8, and moving the limiting block 9 accordingly to make room for wiring. Rotate the rotating frame 12 into the limiting groove 10 to form a triangular support, further restricting the connecting rod 7, spring 8, and limiting block 9, making it easier for workers to put the wire into the fixing groove. After the wire is put into the fixing groove, release the convenient block 11, and under the elastic force of the spring 8, the limiting block 9 returns to its original position, pressing and fixing the wire to ensure the stability of the wire connection.

[0028] In summary:

[0029] The arrangement of a limiting frame 3, connecting rod 7, spring 8, limiting block 9, convenient block 11, limiting groove 10, and rotating frame 12 effectively enhances the connection stability between the circuit breaker body 2 and the wire. The preload of spring 8 keeps the limiting block 9 in a pressed state, eliminating potential contact problems caused by mechanical vibration or external forces. The linkage structure between the rotating frame 12 and the limiting groove 10 ensures reliable locking while allowing for easy release of the limiting block 9's position, facilitating wiring maintenance. The dovetail guide design allows the circuit breaker body 2 to slide smoothly and be precisely positioned along the base plate 1, facilitating installation and adjustment, thus significantly improving the electrical connection reliability and operational convenience of the product.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A compact high-performance circuit breaker, comprising a substrate (1), characterized in that: The top and bottom surfaces of the substrate (1) are respectively provided with a set of dovetail grooves. The circuit breaker body (2) is slidably connected in the two sets of dovetail grooves. The top and bottom of the circuit breaker body (2) are provided with two sets of fixing grooves. The top of the fixing groove is provided with a limiting frame (3). One end of the limiting frame (3) is provided with a through groove. The inside of the through groove is slidably connected with a connecting rod (7). One end of the surface of the connecting rod (7) is sleeved with a spring (8). The spring (8) is located inside the limiting frame (3). The spring (8) and one end of the connecting rod (7) are fixed together. A limiting block (9) is provided. The limiting block (9) is slidably connected inside the limiting frame (3).

2. The compact high-performance circuit breaker according to claim 1, characterized in that: The substrate (1) has two sets of external blocks (4) on both the top and bottom sides. The external blocks (4) have external grooves inside, and external screws (5) are threaded into the external grooves.

3. A compact high-performance circuit breaker according to claim 1, characterized in that: Three sets of grooves (6) are provided on both sides of the circuit breaker body (2).

4. A compact high-performance circuit breaker according to claim 1, characterized in that: The limiting block (9) is provided with multiple sets of limiting teeth on the side away from the spring (8) and the connecting rod (7).

5. A compact high-performance circuit breaker according to claim 1, characterized in that: The other end of the spring (8) is disposed around the inner port of the through slot.

6. A compact high-performance circuit breaker according to claim 1, characterized in that: A limiting groove (10) is provided in the middle of the surface of the connecting rod (7), and a convenient block (11) is provided at the other end of the connecting rod (7).

7. A compact high-performance circuit breaker according to claim 6, characterized in that: The convenient block (11) is rotatably connected to a rotating frame (12) on one side, and one side of the rotating frame (12) is adapted to the interior of the limiting groove (10).

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