A switchgear integrated contact

Abstract

The application provides a switch cabinet integrated contact, belonging to the technical field of power distribution devices, which comprises a contact box, a fixed conductive column fixedly installed between the inner walls of the contact box, a mounting plate fixedly connected to the side end of the contact box, a hollow butt joint inserted between the inner walls of the contact box, a movable conductive column fixedly connected in the hollow butt joint, the movable conductive column being butted with the fixed conductive column, and a plurality of rotating grooves being formed in the side end of the hollow butt joint; the positioning claw is slowly cancelled to extrude one end of the positioning claw, so that the other end of the positioning claw is clamped in the annular groove of the fixed conductive column, and the clamping of the fixed conductive column is realized through the overturning of the plurality of positioning claws; the fixed conductive column and the movable conductive column are positioned and calibrated, the friction phenomenon caused by the misalignment of the fixed conductive column and the movable conductive column when they are butted is avoided, the arc is prevented from breaking through the insulating shell, and thus the generation of the power safety hidden danger is eliminated.

Description

Technical Field

[0001] This invention belongs to the field of power distribution device technology, and specifically relates to an integrated contact for switchgear. Background Technology

[0002] A switchgear is an electrical device. External power lines first enter the main control switch inside the cabinet, then the branch control switches, with each branch circuit configured according to its needs. This includes instruments, automatic control systems, motor magnetic switches, various AC contactors, etc. Some switchgear also have high-voltage and low-voltage compartments, and high-voltage busbars, such as in power plants. Some also include underfrequency shears to protect key equipment. The main function of switchgear is to open, close, control, and protect electrical equipment during power generation, transmission, distribution, and energy conversion in a power system. The main components inside a switchgear include circuit breakers, disconnect switches, load switches, operating mechanisms, instrument transformers, and various protective devices. Switchgear can be classified in many ways. For example, based on the circuit breaker installation method, it can be divided into withdrawable switchgear and fixed switchgear; or according to the cabinet structure, it can be divided into open switchgear, metal-enclosed switchgear, and metal-enclosed armored switchgear; and according to the voltage level, it can be divided into high-voltage switchgear and low-voltage switchgear. It is mainly suitable for various occasions such as power plants, substations, petrochemical plants, metallurgical steel rolling mills, light industry and textiles, factories and mines, residential communities, and high-rise buildings.

[0003] Electrical contacts are the main conductive contact materials widely used in relays, contactors, load switches, medium and low voltage circuit breakers, as well as household appliances and automotive electrical systems (horns, lights, ignition). Switching devices are widely used in analyzing / closing voltage / current in circuits, and their reliability directly affects the reliable operation of the entire power system. Electrical contacts are one of the most important components of switching devices; they are the "heart" of these products.

[0004] In actual use, misalignment of existing contacts during connection causes friction, which can lead to electric arcing and breakdown of the insulation shell, creating a potential electrical safety hazard. To address this, we propose an integrated contact for switchgear. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated contact for switchgear, which aims to solve the problem of friction caused by misalignment during the connection of existing contacts, resulting in electric arcing and breakdown of the insulation shell, thus creating a potential electrical safety hazard.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An integrated contact for a switchgear, including a contact box;

[0008] Fixed conductive posts are fixedly installed between the inner walls of the contact box;

[0009] Mounting plate, which is fixedly connected to the side of the contact box;

[0010] A hollow connector is inserted between the inner walls of a contact box. A movable conductive post is fixedly connected inside the hollow connector. The movable conductive post is connected to the fixed conductive post. Multiple rotating grooves are opened on the side end of the hollow connector.

[0011] Positioning claws, wherein multiple positioning claws are provided, and each of the multiple positioning claws is rotatably connected between the inner walls of multiple rotating slots via hinge shafts; one end of each of the multiple positioning claws is engaged with a fixed conductive post; and

[0012] The linkage mechanism is provided in multiple sets, which are located between the contact box and the hollow connector. The multiple sets of linkage mechanisms are connected to multiple positioning claws to move the multiple positioning claws.

[0013] As a preferred embodiment of the present invention, each set of linkage mechanisms includes an elastic component, a triggering component, and a guiding component. The guiding component is disposed between the contact box and the hollow connector. The elastic component is disposed between the inner walls of the hollow connector and is connected to the positioning claw. The triggering component is disposed between the contact box and the hollow connector and is connected to the positioning claw.

[0014] As a preferred embodiment of the present invention, the guiding assembly includes multiple guide grooves and multiple guide posts. The multiple guide grooves are formed on the inner wall of the contact box, and the multiple guide posts are fixedly connected to the circumferential surface of the hollow connector. The multiple guide posts are in contact with the multiple guide grooves.

[0015] In a preferred embodiment of the present invention, the triggering component includes a guide wheel groove and a guide wheel. The guide wheel groove is formed on the inner wall of the contact box, the guide wheel is rotatably connected to the other end of the positioning claw, and the positioning claw slides between the inner walls of the guide wheel groove.

[0016] In a preferred embodiment of the present invention, the elastic component includes a retaining ring and a spring. The retaining ring is fixedly connected to the inner circumferential wall of the hollow connector. One end of the spring is fixedly connected to the retaining ring, and the other end of the spring is fixedly connected to the positioning claw.

[0017] In a preferred embodiment of the present invention, a negative magnetic rubber ring is fixedly connected to the side end of the mounting plate, and a positive magnetic rubber ring is fixedly connected to the side end of the hollow connector, wherein the positive magnetic rubber ring and the negative magnetic rubber ring are magnetically attracted to each other.

[0018] In a preferred embodiment of the present invention, a threaded sleeve is fixedly connected to the side end of the anode magnetic rubber ring, and a prism sleeve is fixedly connected to the circumferential surface of the threaded sleeve.

[0019] As a preferred embodiment of the present invention, the inner and outer surfaces of the contact box, the hollow connector, and the mounting plate are all coated with insulating adhesive.

[0020] As a preferred embodiment of the present invention, the mounting plate has multiple screw holes on its side.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In this design, the guide wheel groove presses against the guide wheel, causing the guide wheel to press and push one end of the positioning claw, which in turn raises the other end of the positioning claw, facilitating its opening. As the guide wheel slides from the shallowest part of the guide wheel groove to the deepest part, the positioning claw slowly releases its pressure on one end of the positioning claw, causing the other end of the positioning claw to engage with the annular groove of the fixed conductive post. Simultaneously, the engagement of the fixed conductive post is achieved through the flipping of multiple positioning claws, aligning and calibrating the fixed and movable conductive posts. This prevents misalignment and friction when the fixed and movable conductive posts are connected, thus preventing arcing and breakdown of the insulation shell, and ultimately eliminating potential electrical safety hazards.

[0023] 2. In this solution, both the negative magnetic rubber ring and the positive magnetic rubber ring are coated with insulating rubber. They are fixed by magnetic adsorption. The negative magnetic rubber ring and the positive magnetic rubber ring can be connected by annular electromagnetic docking to strengthen the fixation of the hollow connector and realize the fixed connection between the mounting plate and the hollow connector, preventing the contact box and the hollow connector from loosening. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a first-view perspective perspective view of an integrated contact for a switch cabinet according to the present invention.

[0026] Figure 2 This is a second-view perspective perspective view of an integrated contact for a switchgear according to the present invention;

[0027] Figure 3 This is a first half-sectional view of an integrated contact for a switchgear according to the present invention;

[0028] Figure 4 This is a second half sectional view of an integrated contact for a switchgear according to the present invention;

[0029] Figure 5 This is a third half-sectional view of an integrated contact for a switchgear according to the present invention;

[0030] Figure 6 This is a first exploded view of an integrated contact for a switchgear according to the present invention;

[0031] Figure 7 This is a second exploded view of an integrated contact for a switchgear according to the present invention.

[0032] In the diagram: 1. Contact box; 2. Hollow connector; 3. Female magnetic rubber ring; 4. Mounting plate; 5. Guide groove; 6. Guide post; 7. Male magnetic rubber ring; 8. Prism sleeve; 9. Threaded sleeve; 10. Movable conductive post; 11. Fixing ring; 12. Guide wheel groove; 13. Rotating groove; 14. Fixed conductive post; 15. Positioning claw; 16. Spring; 17. Guide wheel. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0034] Reference Figure 1 - Figure 7 An integrated contact for a switchgear, comprising:

[0035] Contact box 1;

[0036] Fixed conductive post 14 is fixedly installed between the inner walls of contact box 1;

[0037] Mounting plate 4 is fixedly connected to the side of contact box 1;

[0038] Hollow connector 2 is inserted between the inner walls of the contact box 1. A movable conductive post 10 is fixedly connected inside the hollow connector 2. The movable conductive post 10 is connected to the fixed conductive post 14. Multiple rotating grooves 13 are opened on the side end of the hollow connector 2.

[0039] Positioning claws 15, multiple positioning claws 15 are provided, and multiple positioning claws 15 are rotatably connected between the inner walls of multiple rotating grooves 13 via hinge shafts. One end of each positioning claw 15 is engaged with a fixed conductive post 14; and

[0040] The linkage mechanism is provided in multiple sets, which are located between the contact box 1 and the hollow connector 2. The multiple sets of linkage mechanisms are connected to multiple positioning claws 15 to move the multiple positioning claws 15.

[0041] In this invention, the contact box 1 is used to accommodate the hollow connector 2, the fixed conductive post 14 is connected to the movable conductive post 10 for superconducting current, the mounting plate 4 is used to support and fix the contact box 1 and the negative magnetic ring 3, the hollow connector 2 is used to insert into the contact box 1 to guide the docking of the movable conductive post 10 and the fixed conductive post 14, the opening of multiple rotating slots 13 is used to accommodate multiple positioning claws 15 and guide wheels 17, the multiple positioning claws 15 are used to limit and guide the fixed conductive post 14, multiple sets of linkage mechanisms are set between the contact box 1 and the hollow connector 2, the multiple sets of linkage mechanisms are connected to the multiple positioning claws 15, and are used to move the multiple positioning claws 15.

[0042] Each linkage mechanism includes an elastic component, a triggering component, and a guide component. The guide component is located between the contact box 1 and the hollow connector 2. The elastic component is located between the inner walls of the hollow connector 2 and is connected to the positioning claw 15. The triggering component is located between the contact box 1 and the hollow connector 2 and is connected to the positioning claw 15.

[0043] In this invention, the guide component is used to limit and guide the hollow connector 2 when it is inserted, the elastic component provides power to push the positioning claw 15 to flip, and the trigger component is used to push the positioning claw 15 to flip in the opposite direction.

[0044] The guide assembly includes multiple guide grooves 5 and multiple guide posts 6. The multiple guide grooves 5 are formed on the inner wall of the contact box 1, and the multiple guide posts 6 are fixedly connected to the circumferential surface of the hollow connector 2. The multiple guide posts 6 are in contact with the multiple guide grooves 5.

[0045] In this invention, multiple guide grooves 5 are circumferentially distributed on the inner wall of the contact box 1. The opening of multiple guide grooves 5 is used to accommodate the insertion of multiple guide posts 6. Multiple guide posts 6 are circumferentially distributed and fixedly connected to the circumferential surface of the hollow connector 2. Multiple guide posts 6 are inserted into multiple guide grooves 5. Through the docking of multiple guide posts 6 and multiple guide grooves 5, the contact box 1 and the hollow connector 2 are corrected, avoiding misalignment of multiple guide wheels 17 and multiple guide wheel grooves 12, while ensuring accurate straight docking of movable conductive posts 10 and fixed conductive posts 14.

[0046] The triggering component includes a guide wheel groove 12 and a guide wheel 17. The guide wheel groove 12 is formed on the inner wall of the contact box 1. The guide wheel 17 is rotatably connected to the other end of the positioning claw 15. The positioning claw 15 slides between the inner walls of the guide wheel groove 12.

[0047] In this invention, the guide wheel groove 12 is designed to accommodate the sliding of the guide wheel 17. The guide wheel 17 slides within the guide wheel groove 12, which is a wavy arc-shaped groove. When the hollow connector 2 is inserted into the contact box 1, the guide wheel groove 12 presses against the guide wheel 17, causing the guide wheel 17 to press and push one end of the positioning claw 15, thus raising the other end of the positioning claw 15 and facilitating its opening. As the guide wheel 17 slides from the shallowest part to the deepest part of the guide wheel groove 12, the positioning claw 15 slowly releases its pressure on one end, causing the other end of the positioning claw 15 to engage in the annular groove of the fixed conductive post 14. Simultaneously, the engagement of the fixed conductive post 14 is achieved through the flipping of multiple positioning claws 15, aligning the fixed conductive post 14 and the movable conductive post 10. This prevents misalignment and friction when the fixed conductive post 14 and the movable conductive post 10 are connected, thus preventing arcing and breakdown of the insulating shell and eliminating potential safety hazards.

[0048] The elastic component includes a retaining ring 11 and a spring 16. The retaining ring 11 is fixedly connected to the inner circumference of the hollow connector 2. One end of the spring 16 is fixedly connected to the retaining ring 11, and the other end of the spring 16 is fixedly connected to the positioning claw 15.

[0049] In this invention, the fixing ring 11 is used to support the fixing spring 16, and the spring 16 is used to push one end of the positioning claw 15, causing the other end of the positioning claw 15 to shift inward, thereby completing the flipping of the positioning claw 15. The deformation of the spring 16 accumulates power, which then pushes the positioning claw 15 to flip, providing power for the flipping of the positioning claw 15.

[0050] A female magnetic rubber ring 3 is fixedly connected to the side end of the mounting plate 4, and a male magnetic rubber ring 7 is fixedly connected to the side end of the hollow connector 2. The male magnetic rubber ring 7 and the female magnetic rubber ring 3 are magnetically attracted to each other.

[0051] In this invention, the surfaces of both the negative magnetic rubber ring 3 and the positive magnetic rubber ring 7 are coated with insulating rubber. The negative magnetic rubber ring 3 and the positive magnetic rubber ring 7 are magnetically attracted and fixed. The negative magnetic rubber ring 3 and the positive magnetic rubber ring 7 can be connected by annular electromagnetic docking to strengthen the fixation of the hollow connector 2, thereby achieving a fixed connection between the mounting plate 4 and the hollow connector 2 and preventing the contact box 1 from loosening when it is connected to the hollow connector 2.

[0052] A threaded sleeve 9 is fixedly connected to the side end of the positive magnetic rubber ring 7, and a prism sleeve 8 is fixedly connected to the circumferential surface of the threaded sleeve 9.

[0053] In this invention, the threaded sleeve 9 is used to be threaded onto the contact arm of the circuit breaker, and the prism sleeve 8 is provided to facilitate the rotation of the threaded sleeve 9 during threaded installation.

[0054] The inner and outer surfaces of the contact box 1, the hollow connector 2, and the mounting plate 4 are all coated with insulating adhesive.

[0055] In this invention, the inner and outer surfaces of the contact box 1, the hollow connector 2, and the mounting plate 4 are all coated with insulating glue to prevent current leakage during use after the contact box 1 and the hollow connector 2 are connected, thus avoiding the risk of electric shock.

[0056] Multiple screw holes are provided on the side of the mounting plate 4.

[0057] In this invention, multiple screw holes are provided to facilitate the installation of the mounting plate 4 using screws.

[0058] The working principle of the integrated contact of the switch cabinet provided by this invention is as follows:

[0059] During contact installation, the prism sleeve 8 is clamped with a wrench, and the hollow connector 2, the positive magnetic ring 7, the prism sleeve 8, and the threaded sleeve 9 are threaded onto the contact arm. The contact box 1 and the mounting plate 4 are then installed onto the inner wall of the switch cabinet using screws. By moving the contact arm, the hollow connector 2 is inserted into the contact box 1. During the movement of the hollow connector 2, the guide wheel groove 12 presses against the guide wheel 17, causing the guide wheel 17 to press and push one end of the positioning claw 15, thus raising the other end of the positioning claw 15 to facilitate its opening. The guide wheel 17 slides from the shallowest part to the deepest part of the guide wheel groove 12... During the process, the positioning claw 15 slowly releases the pressure on one end of the positioning claw 15, so that the other end of the positioning claw 15 is engaged in the annular groove of the fixed conductive post 14. At the same time, the fixed conductive post 14 is engaged by the flipping of multiple positioning claws 15. The fixed conductive post 14 and the movable conductive post 10 are positioned and calibrated to avoid misalignment and friction when the fixed conductive post 14 and the movable conductive post 10 are connected, thus preventing the arc from breaking through the insulation shell and eliminating the generation of potential electrical safety hazards. When the hollow connector 2 is fully inserted into the contact box 1, the negative magnetic rubber ring 3 and the positive magnetic rubber ring 7 magnetically attract and fix the hollow connector 2.

[0060] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated contact for a switchgear, characterized in that, include; Contact box (1); Fixed conductive post (14), the fixed conductive post (14) is fixedly installed between the inner walls of the contact box (1); Mounting plate (4), which is fixedly connected to the side end of contact box (1); Hollow connector (2), the hollow connector (2) is inserted between the inner walls of the contact box (1), a movable conductive post (10) is fixedly connected inside the hollow connector (2), the movable conductive post (10) is connected to the fixed conductive post (14), and multiple rotating grooves (13) are opened on the side end of the hollow connector (2). Positioning claws (15), multiple positioning claws (15) are provided, and multiple positioning claws (15) are rotatably connected between the inner walls of multiple rotating grooves (13) through hinge shafts, and one end of multiple positioning claws (15) is engaged with a fixed conductive post (14); as well as The linkage mechanism is provided in multiple sets, which are located between the contact box (1) and the hollow connector (2). The multiple sets of linkage mechanisms are connected to multiple positioning claws (15) to move the multiple positioning claws (15). Each set of linkage mechanisms includes an elastic component, a trigger component, and a guide component. The guide component is disposed between the contact box (1) and the hollow connector (2). The elastic component is disposed between the inner walls of the hollow connector (2) and is connected to the positioning claw (15). The trigger component is disposed between the contact box (1) and the hollow connector (2) and is connected to the positioning claw (15). The guiding assembly includes multiple guide grooves (5) and multiple guide posts (6). The multiple guide grooves (5) are opened on the inner wall of the contact box (1), and the multiple guide posts (6) are fixedly connected to the circumferential surface of the hollow connector (2). The multiple guide posts (6) are in contact with the multiple guide grooves (5). The triggering component includes a guide wheel groove (12) and a guide wheel (17). The guide wheel groove (12) is opened on the inner wall of the contact box (1). The guide wheel (17) is rotatably connected to the other end of the positioning claw (15). The positioning claw (15) slides between the inner walls of the guide wheel groove (12).

2. The integrated contact of a switchgear according to claim 1, characterized in that, The elastic component includes a retaining ring (11) and a spring (16). The retaining ring (11) is fixedly connected to the inner circumference of the hollow connector (2). One end of the spring (16) is fixedly connected to the retaining ring (11), and the other end of the spring (16) is fixedly connected to the positioning claw (15).

3. The integrated contact of a switchgear according to claim 2, characterized in that, The mounting plate (4) is fixedly connected to a negative magnetic rubber ring (3) on its side end, and the hollow connector (2) is fixedly connected to a positive magnetic rubber ring (7) on its side end. The positive magnetic rubber ring (7) and the negative magnetic rubber ring (3) are magnetically attracted to each other.

4. The integrated contact of a switchgear according to claim 3, characterized in that, The side end of the positive magnetic rubber ring (7) is fixedly connected to a threaded sleeve (9), and the circumferential surface of the threaded sleeve (9) is fixedly connected to a prism sleeve (8).

5. The integrated contact of a switchgear according to claim 4, characterized in that, The inner and outer surfaces of the contact box (1), hollow connector (2) and mounting plate (4) are all coated with insulating adhesive.

6. The integrated contact of a switchgear according to claim 5, characterized in that, The mounting plate (4) has multiple screw holes on its side.

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