An outdoor intelligent circuit breaker

Abstract

The application discloses an outdoor intelligent circuit breaker, which comprises a supporting base and a circuit breaking mechanism. Insulating poles are obliquely arranged on the upper ends of the left and right side surfaces of the supporting base. Y-shaped limiters are arranged on the one end side surfaces of the insulating poles through connecting cylinder rods. U-shaped arc extinguishers are arranged between two adjacent limiters. The circuit breaking mechanism comprises a limiting disc, a tripping device and a striking rod. The limiting disc is vertically arranged between the two limiters below the arc extinguishers through a hook. Two L-shaped adjusting holes and a positioning hole are arranged on the side surface of the limiting disc. The striking rod is vertically arranged on the outside of the limiting disc through a safety pin which is arranged in the positioning hole in a matched mode. The V-shaped power connection structure is adopted. The tripping device is arranged in the limiters and the arc extinguishers in cooperation with the limiting disc. The striking rod is used for completing the striking power connection after power cut-off in the positioning block. The built-in striking reset structure guarantees the power connection safety and facilitates the fast reset operation, and the use effect is good.

Description

Technical Field

[0001] This invention relates to the field of technology, specifically to an outdoor intelligent circuit breaker. Background Technology

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions and closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. Circuit breakers are classified into high-voltage and low-voltage circuit breakers according to their application range. The boundary between high and low voltage is somewhat blurred; generally, those above 3kV are considered high-voltage electrical appliances. Circuit breakers can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. When serious overloads, short circuits, or undervoltage faults occur, they can automatically disconnect the circuit. Their function is equivalent to a combination of a fuse switch and over / under-temperature relays. Moreover, generally, no parts need to be replaced after interrupting a fault current. They have gained widespread application. In the operation of an intelligent circuit breaker, the mechanism is always in the pre-stored energy position. As soon as the circuit breaker receives a closing command, it can immediately and instantaneously close. The release of the pre-stored energy is accomplished by a button or a closing electromagnet. The electric drive mechanism is self-contained, with the energy storage shaft and main shaft connected by a concave-convex wedge joint, making assembly and disassembly convenient. Most existing power transmission user circuit breakers are vertical structures, and the reset operation after a power outage is often performed in an exposed energized state, which affects the safety of operators and has poor practicality. Summary of the Invention

[0003] The purpose of this invention is to provide an outdoor intelligent circuit breaker to solve the problems in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an outdoor intelligent circuit breaker, comprising a support base and a circuit breaking mechanism. Multiple insulating poles are obliquely fixed to the upper ends of the left and right side surfaces of the support base via connecting flanges. A V-shaped connecting rod is fixed to the side of each insulating pole away from the support base. A Y-shaped limiter is laterally movable on the side of the connecting rod away from the insulating pole via a locking pin. A U-shaped arc-extinguishing cover is movably arranged between two adjacent limiters. The circuit breaking mechanism includes a limiting disc, a trip unit, and a connecting rod. The limiting disc is vertically movably arranged between two limiters below the arc-extinguishing cover via a hook. Two L-shaped adjustment holes are penetrated through the side of the limiting disc. A positioning hole is longitudinally penetrated through the side of the limiting disc on one side of the adjustment hole. One end of the trip unit is movably arranged on the side of the limiting disc via a pin passing through the adjustment hole. The connecting rod is vertically movably arranged on the outside of the limiting disc via a safety pin fitted inside the positioning hole.

[0005] Preferably, a C-shaped assembly plate is longitudinally fixed at each of the left and right ends of the bottom surface of the support base and integrated with the support base into a whole.

[0006] Preferably, the upper part of the support base is formed into an isosceles trapezoidal shape, and the set inclination angle between the insulating pole and the support base is 45 degrees.

[0007] Preferably, the limiter is composed of a flow guide and a connecting rod that runs through its interior, and the relative rotation angle between the flow guide and the arc extinguishing cover of the limiter is in the range of 30-75 degrees.

[0008] Preferably, the release device is composed of a V-shaped combined slide rod and a positioning block on the side of the hook. The end of the release device away from the limiting plate is movably connected to the connecting rod of the limiter and the rotation angle range is 0-45 degrees.

[0009] Preferably, the punching rod is an insert-type insulating cylindrical structure, and the swing angle range between the punching rod and the limiting disc via the safety pin is -30 to 30 degrees.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] Adopting a V-shaped connection structure, the trip unit, together with the limiting plate, is placed inside the limiter and the arc extinguishing chamber. This effectively reduces sparks during live work to ensure personnel safety. During the re-energization operation, the lifting of the punching rod, in conjunction with the adjusting hole of the limiting plate and the trip unit, completes the punching connection operation after the power failure within the cavity of the positioning block. This ensures connection safety while facilitating quick reset operations, resulting in good performance. Attached Figure Description

[0012] 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:

[0013] Figure 1 This is a schematic diagram of the structure of the present invention;

[0014] Figure 2 This is a schematic diagram of the power-off structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the internal connection structure of the limiter of the present invention;

[0016] Figure 4 This is a schematic cross-sectional view of the disc defined in this invention.

[0017] In the diagram: 1. Support base; 2. Insulating pole; 3. Connecting cylinder rod; 4. Limiter; 5. Arc extinguishing cover; 6. Limiting disc; 7. Trip device; 8. Punching rod; 9. Hook; 10. Adjustment hole; 11. Positioning hole; 12. Safety pin; 13. Assembly plate; 14. Flow guide; 15. Connecting rod; 16. Combined slide rod; 17. Positioning block. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the invention, an outdoor intelligent circuit breaker includes a support base 1 and a circuit breaking mechanism. Multiple insulating poles 2 are obliquely fixed to the upper ends of the left and right side surfaces of the support base 1 via connecting flanges. A V-shaped connecting rod 3 is fixed to the side of each insulating pole 2 away from the support base 1. A Y-shaped limiter 4 is laterally movable on the side of the connecting rod 3 away from the insulating pole 2 via a locking pin. A U-shaped arc-extinguishing cover 5 is movably arranged between two adjacent limiters 4. The circuit breaking mechanism includes a limiting disc 6, a trip unit 7, and a connecting rod 8. The limiting disc 6 is vertically movably arranged between two limiters 4 below the arc-extinguishing cover 5 via a hook 9. Two L-shaped adjustment holes 10 are opened through the side of the limiting disc 6. A positioning hole 11 is longitudinally opened through the side of the limiting disc 6 on one side of the adjustment hole 10. One end of the trip unit 7 is movably arranged on the side of the limiting disc 6 via a shaft pin passing through the adjustment hole 10. The connecting rod 8 is vertically movably arranged on the outside of the limiting disc 6 via a safety pin 12 fitted inside the positioning hole 11. The bottom surface of the support base 1 has a C-shaped assembly plate 13 fixed longitudinally at both ends and integrated with the support base 1 to facilitate quick assembly; the upper part of the support base 1 is formed into an isosceles trapezoidal structure, and the set inclination angle between the insulating pole 2 and the support base 1 is 45 degrees to meet the angle installation and fixing requirements; the limiter 4 is composed of a flow guide 14 and a connecting rod 15 that runs through it, and the relative rotation angle range between the flow guide 14 and the arc extinguishing cover 5 of the limiter 4 is 30 degrees. -75 degrees to reduce sparks and ensure personnel safety; the trip unit 7 is composed of a V-shaped combined slide rod 16 and a positioning block 17 on the side of the hook 9. The end of the trip unit 7 away from the limiting plate 6 is movably connected to the connecting rod 15 of the limiter 4 and the rotation angle range is 0-45 degrees to achieve a sliding connection to reduce losses; the punching rod 8 is a plug-in insulated cylindrical structure. The swing angle range between the punching rod 8 and the limiting plate 6 via the safety pin 12 is -30 to 30 degrees, which facilitates quick assembly during punching operations.

[0020] The working principle and usage process of this invention are as follows: A V-shaped power connection structure is adopted. The trip unit 7 and the limiting plate 6 are placed inside the limiter 4 and the arc extinguishing cover 5. The power connection is completed by the lifting of the punching rod 8 in the positioning block 17 after the power is cut off. The built-in punching reset structure ensures the safety of the power connection while facilitating the quick reset operation. The effect is good.

[0021] 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 outdoor intelligent circuit breaker comprising a support base (1), a circuit breaking mechanism, characterized in that: Multiple insulating poles (2) are obliquely fixed to the upper ends of the left and right side surfaces of the support base (1) via connecting flanges. A V-shaped connecting cylinder (3) is fixed to the side of the insulating pole (2) away from the support base (1). A Y-shaped limiter (4) is laterally movable to the side of the connecting cylinder (3) away from the insulating pole (2) via a locking pin. A U-shaped arc-extinguishing cover (5) is movably arranged between two adjacent limiters (4). The circuit breaking mechanism includes a limiting plate (6), a trip unit (7), and a connecting rod (8). The limiting plate (6) is vertically movable to two points below the arc-extinguishing cover (5) via hooks (9). Between the limiters (4), two L-shaped adjustment holes (10) are opened through the side of the limiting plate (6). A positioning hole (11) is opened through the side of the limiting plate (6) on one side of the adjustment hole (10). One end of the trip device (7) is movably disposed on the side of the limiting plate (6) through the adjustment hole (10) via a shaft pin. The punching rod (8) is vertically movably disposed on the outside of the limiting plate (6) through the safety pin (12) provided in the positioning hole (11). The trip device (7) includes a positioning block (17) on the side of the hook (9). The punching rod (8) completes the punching and reconnection after power failure by lifting in the positioning block (17).

2. The outdoor intelligent circuit breaker according to claim 1, characterized in that: A C-shaped assembly plate (13) is fixedly installed longitudinally at both ends of the bottom surface of the support base (1) and integrated with the support base (1) into a whole.

3. An outdoor intelligent circuit breaker according to claim 1, characterized in that: The upper part of the support base (1) is formed into an isosceles trapezoidal structure, and the set inclination angle between the insulating pole (2) and the support base (1) is 45 degrees.

4. An outdoor intelligent circuit breaker according to claim 1, characterized in that: The limiter (4) is composed of a flow guide (14) and a connecting rod (15) that runs through its interior. The relative rotation angle between the flow guide (14) and the arc extinguishing shield (5) of the limiter (4) is 30-75 degrees.

5. An outdoor intelligent circuit breaker according to claim 4, characterized in that: The trip unit (7) also includes a V-shaped combination slide bar (16), and the end of the trip unit (7) away from the limiting plate (6) is movably connected to the connecting rod (15) of the limiter (4) and the rotation angle range is 0-45 degrees.

6. An outdoor intelligent circuit breaker according to claim 1, characterized in that: The punching rod (8) is a plug-in insulating cylindrical structure, and the swing angle range between the punching rod (8) and the limiting disc (6) via the safety pin (12) is -30 to 30 degrees.

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