Plug-in conductive clip for a circuit breaker and method of installation

Abstract

The application provides an insertion type conductive clamp of a circuit breaker and an application, and the prior art adopts a column type terminal to connect wires. The conductive clamp body comprises a curved part with an upper end, an integral static contact plate and an elastic clamp arm arranged at the lower end of the curved part, and a spacing is arranged between the elastic clamp arm and the static contact plate. An inner cavity is arranged in the elastic clamp arm, and a plug-in part is connected to the lower end of the elastic clamp arm. A sliding assembly is arranged on the inner wall of the elastic clamp arm, and the sliding assembly comprises a first sliding groove arranged on the inner wall of the elastic clamp arm. Second sliding grooves are arranged on the inner groove walls of the two sides of the first sliding groove. A sliding block is connected to the inside of the first sliding groove, and sliding rods are welded to the two ends of the sliding block and are slidingly connected to the inside of the second sliding groove. A dustproof assembly is hinged to the inner side of the sliding block. The application solves the problem that the insertion type conductive clamp in the prior art can cause the inside of the circuit breaker to be polluted by dust, thereby affecting the service life of the circuit breaker.

Description

Technical Field

[0001] This invention relates to the field of conductive clip technology, and more specifically to an insert-type conductive clip and its installation method. Background Technology

[0002] Currently, most ordinary miniature circuit breakers use post-type terminals for wiring. A search revealed existing technology (application number: CN201721821022.X), which describes "a miniature circuit breaker with an insertable conductive clip, comprising a circuit breaker body and an insertable conductive clip. The circuit breaker body includes a housing, an operating mechanism, a conductive clip assembly, an arc-extinguishing chamber, an electromagnetic system, and a contact mechanism. The inlet end of the circuit breaker body has a slot for inserting a copper busbar from a distribution board. The slot contains an insertable conductive clip, which includes a conductive clip body and a static contact plate connected to the upper end of the conductive clip body. The conductive clip body includes a connecting part and two elastic clamping arms extending towards the slot entrance. Two elastic clamping arms are provided and are respectively fixedly connected to both ends of the connecting part. The lower end of the elastic clamping arm has an opening part. The upper outer wall of the conductive clip body is fitted with a U-shaped spring clip to clamp the elastic clamping arm."

[0003] However, the plug-in conductive clip in the existing technology is installed on the rear side of the circuit breaker, which requires a slot to be opened in the circuit breaker housing. The slot connects the outside world with the internal cavity of the circuit breaker, which leads to dust entering the inside of the circuit breaker over a long period of use, affecting the service life of the internal mechanism and electronic components. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a plug-in conductive clamp and its installation method are provided to solve the problem that the plug-in conductive clamp in the prior art causes dust contamination inside the circuit breaker, thereby affecting the service life of the circuit breaker.

[0005] To achieve the above objectives, a plug-in conductive clip for a circuit breaker is provided. The device includes: a conductive clamp body, the conductive clamp body having an upper curved portion, a fixed contact plate and an elastic clamp arm with an integral structure at the lower end of the curved portion, and a gap between the elastic clamp arm and the fixed contact plate; an inner cavity is provided inside the elastic clamp arm, and a plug-in portion is connected to the lower end of the elastic clamp arm; a sliding assembly is provided on the inner wall of the elastic clamp arm, and the sliding assembly includes a first sliding groove, which is formed on both sides of the inner wall of the elastic clamp arm; a second sliding groove is formed on both sides of the inner groove of the first sliding groove; a slider is connected inside the first sliding groove, and sliding rods are welded to both ends of the slider, and the sliding rods are slidably connected inside the second sliding groove; a dustproof assembly is hinged to the inner side of the slider, and the dustproof assembly includes a dustproof plate, the dustproof plates are rotatably connected to each other through a hinge shaft, and a hinge block is connected to the outer end of the dustproof plate.

[0006] Furthermore, the elastic clamping arm includes a retaining spring with an outer U-shaped structure, and an arm plate is connected to the inner wall of the retaining spring, and the lower end of the arm plate is provided with a constricted shape.

[0007] Furthermore, the plug-in portion includes a pair of outwardly inclined plates, and the inner side of the inclined plates is provided with a plug-in interface, which is located on the lower side of the dustproof plate.

[0008] Furthermore, the dustproof plate is configured as a rectangular plate structure made of rubber, with gaps between the dustproof plates, and the dustproof plate as a whole has an arc-shaped structure in its initial state.

[0009] Furthermore, the hinge block has a through hole inside, and the through hole is rotatably connected to the inner end of the slider via a pin.

[0010] Furthermore, the curved portion includes a horizontal end and a vertical end, with the vertical end connected to the upper middle part of the elastic clamping arm.

[0011] An installation method for the plug-in conductive clip of the circuit breaker involves aligning the plug-in portion of the conductive clip body 1 with the copper busbar of the distribution board to achieve vertical plugging. During the process, the dustproof plate is pushed upward and slid by the copper busbar. The dustproof plate seals and blocks the space on the upper side of the copper busbar and the space on the outer side of the copper busbar (i.e., the space outside the slot opened in the circuit breaker housing). The thickness of the dustproof component can be set according to the depth of the slot opened in the housing, so that the dustproof plate can still seal the slot of the circuit breaker housing when not in use.

[0012] Beneficial effects Existing plug-in conductive clips, installed on the rear side of circuit breakers, require slots in the circuit breaker housing. These slots connect the outside to the circuit breaker's internal cavity, leading to dust accumulation over time and impacting the lifespan of internal mechanisms and electronic components. This invention completely changes this long-standing connection structure, providing a dust-proof plug-in conductive clip that completely solves the problem of short circuits caused by dust. The plug-in conductive clip of this invention effectively addresses the issue of dust contamination inside the circuit breaker, thus affecting its lifespan. It achieves easy plug-in installation of the circuit breaker and copper busbar while providing dust protection to the internal components, extending its service life.

[0013] The sliding assembly, including the first slide groove, the second slide groove, the slider, and the slide rod, facilitates the stable sliding of the dustproof plate. The dustproof assembly, including the dustproof plate, the gap, the hinge shaft, and the hinge block, facilitates rotational connection with the slider. Furthermore, the dustproof plate itself possesses a certain degree of elasticity and extensibility, ensuring that after the circuit breaker and copper busbar are installed, the dustproof plate blocks the space above and outside the copper busbar, thereby achieving a dustproof effect on the internal cavity of the circuit breaker. This protects the internal mechanisms and electronic components of the circuit breaker from dust, extending their service life. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of an embodiment of the present invention.

[0015] Figure 2 This is a side view cross-sectional structural diagram of an embodiment of the present invention.

[0016] Figure 3 Embodiments of the present invention Figure 2 Schematic diagram of the structure at point A in the middle.

[0017] Figure 4 This is a schematic diagram of the dustproof component structure according to an embodiment of the present invention.

[0018] In the figure: 1. Conductive clamp body; 2. Bending part; 3. Elastic clamp arm; 31. Spring clip; 32. Arm plate; 4. Static contact plate; 5. Insertion part; 51. Inclined plate; 52. Insertion interface; 6. Inner cavity; 7. Sliding assembly; 71. First slide groove; 72. Second slide groove; 73. Slider; 74. Slide rod; 8. Dustproof assembly; 81. Dustproof plate; 82. Gap; 83. Hinge shaft; 84. Hinge block. Detailed Implementation

[0019] Reference Figures 1 to 4 As shown, the present invention provides an insertable conductive clip for a circuit breaker, comprising: a conductive clip body 1, an elastic clip arm 3, a plug-in portion 5, a sliding assembly 7, and a dustproof assembly 8.

[0020] Specifically, the conductive clamp body 1 includes an upper curved portion 2, and an integral static contact plate 4 and an elastic clamping arm 3 are provided at the lower end of the curved portion 2. A gap is provided between the elastic clamping arm 3 and the static contact plate 4. An inner cavity 6 is provided inside the elastic clamping arm 3, and a plug-in portion 5 is connected to the lower end of the elastic clamping arm 3. A sliding component 7 is provided on the inner wall of the elastic clamping arm 3, and the sliding component 7 includes a first sliding groove 71. The first sliding groove 71 is opened on both sides of the inner wall of the elastic clamping arm 3. A second sliding groove 72 is opened on both sides of the inner groove wall of the first sliding groove 71. A slider 73 is connected inside the first sliding groove 71, and a sliding rod 74 is welded to both ends of the slider 73. The sliding rod 74 is slidably connected inside the second sliding groove 72. A dustproof component 8 is hinged to the inner side of the slider 73, and the dustproof component 8 includes a dustproof plate 81. The dustproof plates 81 are rotatably connected to each other through a hinge shaft 83, and a hinge block 84 is connected to the outer end of the dustproof plate 81.

[0021] In this embodiment, a cylindrical contact is provided inside the static contact plate 4, and the cylindrical contact is electrically connected to the conductive components inside the circuit breaker.

[0022] As a preferred implementation, the static contact plate 4 and the contact points facilitate the connection of the conductive clamp body 1 to the copper busbar, thereby enabling the connection of the circuit breaker's incoming line.

[0023] As a preferred implementation, the slide bar 74 is engaged with the second slide groove 72 to slide smoothly, so that the dustproof component 8 can still slide stably during the deformation process of the elastic clamping arm 3.

[0024] The elastic clamping arm 3 includes a retaining spring 31 with an outer U-shaped structure, and an arm plate 32 is connected to the inner wall of the retaining spring 31. The lower end of the arm plate 32 is provided with a constricted shape.

[0025] As a preferred implementation, the spring clip 31 enables the arm plate 32 to have an elastic clamping effect, and the constriction at the lower end of the arm plate 32 facilitates stable clamping with the copper busbar.

[0026] The plug-in part 5 includes a pair of outwardly inclined plates 51, and the inner side of the inclined plates 51 is provided with a plug-in interface 52, which is located on the lower side of the dustproof plate 81.

[0027] As a preferred embodiment, the pair of inclined plates 51 of the insertion part 5 facilitates the insertion guidance effect.

[0028] The dustproof plate 81 is a rectangular plate structure made of rubber, and there are gaps 82 between the dustproof plates 81. The dustproof plate 81 as a whole is an arc-shaped structure in the initial state.

[0029] As a preferred implementation method, the dustproof plate 81 has elastic expansion and contraction properties through the material and connection method of the dustproof plate 81.

[0030] The hinge block 84 has a through hole inside, and the through hole is rotatably connected to the inner end of the slider 73 by a pin.

[0031] The curved part 2 is provided with a horizontal end and a vertical end, and the vertical end is connected to the upper middle part of the elastic clamping arm 3.

[0032] When using the conductive clamp of the present invention, the insertion part of the conductive clamp body 1 is aligned with the copper busbar of the distribution board to achieve vertical insertion. During the process, the dustproof plate is pushed up and slid by the copper busbar. The dustproof plate seals and blocks the space on the upper side of the copper busbar and the space on the outer side of the copper busbar (i.e., the space outside the slot opened in the circuit breaker housing), thereby achieving a dustproof effect.

[0033] In addition, the thickness of the dustproof component can be set according to the depth of the slot opened in the housing, so that the dustproof plate can still play a dustproof role in the slot of the circuit breaker housing when not in use.

Claims

1. A plug-in conductive clip for a circuit breaker, comprising: A conductive clamp body (1) includes an upper curved portion (2), and an integral static contact plate (4) and an elastic clamping arm (3) are provided at the lower end of the curved portion (2). A gap is provided between the elastic clamping arm (3) and the static contact plate (4). An inner cavity (6) is provided inside the elastic clamping arm (3), and a plug-in portion (5) is connected to the lower end of the elastic clamping arm (3). The characteristic feature is that a sliding component (7) is provided on the inner wall of the elastic clamping arm (3), and the sliding component (7) includes a first sliding groove (71). The first sliding groove (71) is opened on both sides of the inner wall of the elastic clamping arm (3). A second sliding groove (72) is opened on both sides of the inner groove wall of the first sliding groove (71). A slider (73) is connected inside the first sliding groove (71), and the two sides of the slider (73) are connected to the second sliding groove (72). A sliding rod (74) is welded to the end, and the sliding rod (74) is slidably connected inside the second sliding groove (72). A dustproof component (8) is hinged to the inner side of the slider (73), and the dustproof component (8) includes a dustproof plate (81). The dustproof plates (81) are rotatably connected by a hinge shaft (83), and a hinge block (84) is connected to the outer end of the dustproof plate (81). The insertion part of the conductive clamp body (1) is aligned with the copper busbar of the distribution board. During the vertical insertion process, the dustproof plate is pushed up and slid by the copper busbar. The dustproof plate seals and blocks the space on the upper side of the copper busbar and the space on the outer side of the copper busbar. The space on the outer side of the copper busbar is the space on the outer side of the slot opened in the circuit breaker housing. The thickness of the dustproof component can be set according to the depth of the slot opened in the housing, so that the dustproof plate can still seal the slot of the circuit breaker housing when not in use.

2. The plug-in conductive clip of a circuit breaker according to claim 1, characterized in that, The elastic clamping arm (3) includes a retaining spring (31) with an outer U-shaped structure, and the inner wall of the retaining spring (31) is connected to an arm plate (32), and the lower end of the arm plate (32) is provided with a constricted shape.

3. The plug-in conductive clip of a circuit breaker according to claim 2, characterized in that, The plug-in part (5) includes a pair of outwardly inclined plates (51), and the inner side of the inclined plates (51) is provided with a plug-in interface (52), and the plug-in interface (52) is located on the lower side of the dustproof plate (81).

4. The plug-in conductive clip of a circuit breaker according to claim 3, characterized in that, The dustproof plate (81) is a rectangular plate structure made of rubber, and there is a gap (82) between the dustproof plates (81). The dustproof plate (81) as a whole is an arc-shaped structure in the initial state.

5. The plug-in conductive clip of a circuit breaker according to claim 4, characterized in that, The hinge block (84) has a through hole inside, and the through hole is rotatably connected to the inner end of the slider (73) through a pin.

6. The plug-in conductive clip of a circuit breaker according to claim 5, characterized in that, The curved part (2) is provided with a horizontal end and a vertical end, and the vertical end is connected to the upper middle part of the elastic clamping arm (3).

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