Magnetic control electromagnet type rapid closing circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a magnetic control electromagnet type rapid closing circuit breaker, which comprises an air switch, a shifting block is rotatably connected in the air switch, a connecting screw is arranged in the air switch, a connecting shell is arranged on the outer wall of the air switch, a connecting assembly is arranged in the connecting shell, and a magnetic control electromagnet is arranged in the connecting assembly. The connecting assembly is used for connecting the connecting shell, the connecting shell is internally provided with an opening and closing assembly, the opening and closing assembly is used for opening and closing the shifting block, the outer wall of the air switch is provided with a stabilizing assembly, and the stabilizing assembly is used for stabilizing an electric wire. According to the utility model, the rotating button drives the connecting column and the limiting circular ring and cooperates with the first spring to realize convenient rotation of the clamping column, so that the connecting shell can be conveniently disassembled and maintained, the problem that the connecting shell cannot be conveniently and rapidly disassembled and maintained is solved, and the convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a magnetically controlled electromagnet type fast closing circuit breaker. Background Art

[0002] Magnetic-controlled electromagnet-type fast-closing circuit breakers play a vital role in today's power systems and electrical equipment. With the continuous growth of electricity demand and the increasing complexity of power systems, the performance requirements for circuit breakers are also becoming increasingly stringent. These circuit breakers are widely used in power transmission and distribution networks, as well as various industrial and residential electrical equipment. Their primary function is to quickly disconnect circuits in the event of faults such as overloads and short circuits, protecting electrical equipment and personnel. Furthermore, during normal power operations, such as power system switching and equipment startup and shutdown, the fast-closing function ensures timely and stable power supply, reducing power outages and improving power system reliability and efficiency. For example, in substations, magnetic-controlled electromagnet-type fast-closing circuit breakers can quickly respond to system faults, promptly disconnecting the faulty line to prevent further escalation and ensuring the safe operation of the entire power network. In industrial production, they can ensure a stable power supply to production lines, avoiding production interruptions and economic losses caused by power outages.

[0003] In traditional circuit breaker designs, common mechanical structures include spring-operated mechanisms and hydraulic-operated mechanisms. Spring-operated mechanisms rely on the storage and release of spring energy to close and open the circuit breaker. During closing, an external force compresses a spring, storing energy. When closing is required, the spring's energy is released, pushing the circuit breaker contacts to close. Hydraulic-operated mechanisms utilize the pressure of hydraulic oil to actuate the circuit breaker. An oil pump presses hydraulic oil into a hydraulic cylinder, pushing a piston to move, thereby closing or opening the circuit breaker contacts. While these traditional operating mechanisms meet the basic functional requirements of circuit breakers to a certain extent, they also have limitations. For example, spring-operated mechanisms have relatively slow closing speeds, and spring fatigue and elasticity loss can affect their long-term stability and reliability. Hydraulic-operated mechanisms, on the other hand, present complex structures, high maintenance costs, and are prone to leakage. They also have relatively high requirements for the operating environment.

[0004] In the prior art, the connection housing of the circuit breaker is very inconvenient in terms of disassembly and assembly. Traditional connection methods often require the use of complex tools and cumbersome operating steps, such as fixing and disassembly with multiple screws. This is not only time-consuming, but also greatly increases the difficulty of operation in some cases where space is limited or emergency maintenance is required. When it is necessary to maintain, inspect or replace parts inside the circuit breaker, the connection housing cannot be disassembled quickly and conveniently, which seriously affects the efficiency of maintenance work. Moreover, during frequent disassembly and installation, screws and other fixings are easily damaged or lost, further increasing the cost and difficulty of maintenance. This inconvenience has caused great trouble to the operation and maintenance personnel of the power system in actual applications, reduced the overall reliability and maintenance efficiency of the power system, and cannot meet the needs of modern power systems for rapid response and efficient maintenance. For this reason, a magnetically controlled electromagnet fast closing circuit breaker is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above shortcomings, the present invention provides a magnetically controlled electromagnet-type fast closing circuit breaker, which aims to improve the problem in the prior art that the switch housing cannot be conveniently disassembled and maintained.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A magnetically controlled electromagnet-type fast-closing circuit breaker includes an air switch, a shift block rotatably connected to the inside of the air switch, a connecting screw provided inside the air switch, a connecting shell provided on the outer wall of the air switch, a connecting assembly provided inside the connecting shell, the connecting assembly functions to connect the connecting shell, an opening and closing assembly provided inside the connecting shell, the opening and closing assembly functions to open and close the shift block, and a stabilizing assembly provided on the outer wall of the air switch, the stabilizing assembly functions to stabilize the wires;

[0008] The connecting assembly includes a knob, the outer wall of the knob is slidably connected to the inside of the connecting shell, a placement slot is provided inside the connecting shell, a sliding slot is provided inside the connecting shell, a rotation slot is provided inside the air switch, a card slot is provided inside the air switch, and another sliding slot is also provided inside the air switch, the outer wall of the knob is rotatably connected to a limiting ring, the outer wall of the limiting ring is slidably connected to the inside of the placement slot, the outer wall of the knob is fixedly connected to a connecting column, the outer wall of the connecting column is fixedly connected to the card column, the outer wall of the card column is slidably connected to the inside of the card slot, the outer wall of the connecting column is sleeved with a spring 1, one end of the spring 1 is fixedly connected to the inner wall of the placement slot, and the other end of the spring 1 is fixedly connected to the outer wall of the limiting ring;

[0009] As a further description of the above technical solution:

[0010] The opening and closing assembly includes a slide rail, a guide magnet, an electromagnet, and a slider, wherein the slide rail is provided inside the connecting housing, the outer wall of the slider is slidably connected to the inner wall of the guide magnet, the outer wall of the electromagnet is fixedly connected to the inner wall of the connecting housing, and the outer wall of the guide magnet is fixedly connected to the outer wall of the slider;

[0011] As a further description of the above technical solution:

[0012] The stabilizing assembly includes a fixing block, the outer wall of which is fixedly connected to the outer wall of the air switch;

[0013] As a further description of the above technical solution:

[0014] A wiring slot is provided inside the air switch, and a limiting slot is provided inside the fixing block;

[0015] As a further description of the above technical solution:

[0016] The outer wall of the fixing block is fixedly connected to a fixing column, and the top of the fixing column is fixedly connected to a limiting plate;

[0017] As a further description of the above technical solution:

[0018] The outer wall of the fixed column is provided with a second spring, the bottom of the second spring is fixedly connected to the top of the fixed block, and the top of the second spring is fixedly connected to a sliding plate;

[0019] As a further description of the above technical solution:

[0020] The interior of the sliding plate is slidably connected to the outer wall of the fixed column, the outer wall of the sliding plate is fixedly connected to a sliding block, and the outer wall of the sliding block is slidably connected to the interior of the fixed block;

[0021] As a further description of the above technical solution:

[0022] The outer wall of the sliding block is fixedly connected with a clamp, both sides of the outer wall of the sliding block are fixedly connected with connecting blocks, and the outer wall of the connecting block is slidably connected to the inside of the limiting groove.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the present invention, the clamping column realizes its movement function by rotating the knob. When the knob is rotated, the connecting column and the limiting ring are driven by the knob and cooperate with the spring 1 to realize the convenient rotation of the clamping column, thereby conveniently disassembling and assembling the connecting shell and facilitating its maintenance, solving the problem of not being able to disassemble and maintain it conveniently and quickly, and improving convenience.

[0025] 2. In the utility model, the clamp realizes its moving function by placing the wires. When placing the wires, the sliding block and the sliding plate are driven by the wires and cooperate with the spring 2 to realize the sliding of the clamp inside the fixed block, thereby adaptively clamping wires of different specifications to keep them stable, solving the problem that the wires are easily affected by external forces and falling off, and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of the magnetically controlled electromagnet type fast closing circuit breaker proposed in the utility model;

[0027] Figure 2 This is a schematic diagram of the structure inside the connection housing of the magnetically controlled electromagnet type fast closing circuit breaker proposed in the present invention;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 This is a structural schematic diagram of the fixed block of the magnetically controlled electromagnet type fast closing circuit breaker proposed by the utility model.

[0030] Legend:

[0031] 1. Air switch; 2. Connecting screws; 3. Wiring slot; 4. Knob; 5. Connecting housing; 6. Slide rail; 7. Conductive magnet; 8. Electromagnet; 9. Slider; 10. Dial block; 11. Slot; 12. Rotating slot; 13. Clamping column; 14. Sliding slot; 15. Connecting column; 16. Spring 1; 17. Limiting ring; 18. Placement slot; 19. Limiting slot; 20. Fixed block; 21. Connecting block; 22. Spring 2; 23. Sliding plate; 24. Limiting plate; 25. Fixed column; 26. Clamp; 27. Sliding block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 - Figure 3The utility model provides an embodiment: a magnetically controlled electromagnet type fast closing circuit breaker, comprising an air switch 1, a dial block 10 being rotatably connected inside the air switch 1, a connecting screw 2 being provided inside the air switch 1, the connecting screw 2 being made of carbon steel and having undergone rust-proof treatment, with clear and high-precision threads, capable of firmly connecting the wires to ensure stable current transmission, a connecting shell 5 being provided on the outer wall of the air switch 1, a connecting assembly being provided inside the connecting shell 5, the connecting assembly being used to connect the connecting shell 5, an opening and closing assembly being provided inside the connecting shell 5, the opening and closing assembly being used to open and close the dial block 10, a stabilizing assembly being provided on the outer wall of the air switch 1, the stabilizing assembly being used to stabilize the wires;

[0034] The connecting assembly includes a knob 4, which is designed to be non-slip and is usually made of rubber or plastic with a non-slip texture, which is convenient for users to operate. The outer wall of the knob 4 is slidably connected to the inside of the connecting shell 5. A placement groove 18 is opened inside the connecting shell 5, a sliding groove 14 is opened inside the connecting shell 5, a rotation groove 12 is opened inside the air switch 1, a card slot 11 is opened inside the air switch 1, and another sliding groove 14 is also opened inside the air switch 1. The outer wall of the knob 4 is rotatably connected to a limiting ring 17, which is usually made of metal. The outer wall of the knob 4 is fixedly connected to the connecting column 15, and the outer wall of the connecting column 15 is fixedly connected to the clamping column 13. The outer wall of the clamping column 13 is slidably connected to the inside of the clamping groove 11. The outer wall of the connecting column 15 is provided with a spring 16, and one end of the spring 16 is fixedly connected to the inner wall of the placement groove 18, and the other end of the spring 16 is fixedly connected to the outer wall of the limiting ring 17.

[0035] Specifically, the knob 4 can be pressed later, and the user applies force to the knob 4, so that it drives the limiting ring 17 to slide inside the placement groove 18. During this process, the limiting ring 17 compresses the spring 16, and at the same time, the rotation of the knob 4 drives the connecting column 15 to move together, and then drives the card column 13 to slide out of the card slot 11 through the connecting column 15. Then the knob 4 is rotated. At this time, the knob 4 drives the connecting column 15 to rotate, and the connecting column 15 drives the card column 13 to rotate inside the rotation groove 12. After that, the knob 4 is released, and the spring 16 rebounds, driving the card column 13 to slide through the sliding groove 14 opened inside the air switch 1 to the sliding groove 14 opened in the connecting shell 5. In this way, the connecting shell 5 can be easily removed to maintain its internal components or related structures. After maintenance is completed, put the connecting housing 5 back in place and turn the knob 4 again to return the clamping column 13 to its initial position and fix it, ensuring a stable connection between the connecting housing 5 and the air switch 1 and ensuring the normal operation of the equipment. There is no need to use complex tools and tedious operating steps, such as tightening screws. During installation, just align the buckle on the connecting housing 5 with the corresponding slot 11 on the air switch 1 and press lightly. The buckle will automatically snap into the slot 11 to achieve a quick connection, greatly saving installation time and labor costs. When the air switch 1 or the connecting housing 5 needs to be maintained, repaired or replaced, disassembly is also very convenient. By manually turning the knob 4 to disengage it from the slot 11, the connecting housing 5 can be quickly removed, improving work efficiency.

[0036] Reference Figure 1 and Figure 2 The opening and closing assembly includes a slide rail 6, a guide magnet 7, an electromagnet 8 and a slider 9. The slide rail 6 is opened inside the connecting shell 5. The outer wall of the slider 9 is slidably connected to the inside of the guide magnet 7. The outer wall of the electromagnet 8 is fixedly connected to the inner wall of the connecting shell 5. The outer wall of the guide magnet 7 is fixedly connected to the outer wall of the slider 9.

[0037] Specifically, when the device is used, the electromagnet 8 is energized to generate a magnetic field. Under the action of the magnetic field, the electromagnet 8 generates a repulsive force on the conductive magnet 7. At this time, the slider 9 connected to the conductive magnet 7 slides smoothly inside the slide rail 6, thereby driving the shift block 10 to move, and the shift block 10 is shifted by electromagnetic force to complete the closing operation. Compared with the traditional spring-operated mechanism circuit breaker, the magnetically controlled electromagnet 8 type fast closing circuit breaker has a faster closing speed and can complete the closing operation in a short time, reducing the power outage time of the power system and improving the reliability of power supply.

[0038] Reference Figure 1 and Figure 4The stabilizing component includes a fixing block 20, which serves as the basic structure of the stabilizing component. The outer wall of the fixing block 20 is made of high-strength insulating material, such as polyamide PA in engineering plastics, which has good mechanical strength, heat resistance and insulation properties. This material can withstand a certain amount of external force impact, while ensuring the stability and insulation of the connection with the outer wall of the air switch 1. The outer wall of the fixed block 20 is fixedly connected to the outer wall of the air switch 1, and a wiring slot 3 is provided inside the air switch 1. A limiting slot 19 is provided inside the fixed block 20. The outer wall of the fixed block 20 is fixedly connected to a fixing column 25, and the top of the fixing column 25 is fixedly connected to a limiting plate 24. The outer wall of the fixing column 25 is sleeved with a spring 22, and the bottom of the spring 22 is fixedly connected to the top of the fixed block 20. The top of the spring 22 is fixedly connected to a sliding plate 23. The sliding plate 23 is slidably connected to the outer wall of the fixed column 25. The outer wall of the sliding plate 23 is fixedly connected to a sliding block 27. The outer wall of the sliding block 27 is slidably connected to the inside of the fixed block 20. The outer wall of the sliding block 27 is fixedly connected to a clamp 26. The clamp 26 is made of a material with good elasticity, which can better fit the shape of the wire and provide a stable clamping force. The outer wall of the sliding block 27 is fixedly connected to the connecting blocks 21 on both sides, and the outer wall of the connecting block 21 is slidably connected to the inside of the limiting slot 19.

[0039] Specifically, the wire is placed inside the wiring groove 3. During the placement process, since the contact surface between the wire and the clamp 26 is an inclined surface, the wire will push the clamp 26 to move when entering the wiring groove 3, and then the clamp 26 drives the sliding block 27 to slide inside the fixed block 20. At the same time, the connecting blocks 21 on both sides of the sliding block 27 also slide accordingly inside the limiting groove 19, playing a guiding and limiting role. Then the sliding block 27 further drives the sliding plate 23 to slide on the outer wall of the fixed column 25, and in this process, the spring 22 is stretched. When the wire is placed inside the wiring groove 3, it is connected by the connecting screw 2, and then the spring 22 rebounds, and its rebound drives the clamp 26 to clamp the wire, so that the wire can be stably placed in the wiring groove 3, effectively preventing it from shaking due to external forces, thereby ensuring the reliability and stability of the wire connection. Due to the adaptive characteristics of the spring 22 and the clamp 26, it can continuously apply a stable clamping force to the wire. During operation, this clamping force effectively prevents the wires from loosening, even when affected by vibration, temperature fluctuations, and other factors. Compared to traditional screw fastening methods, which can loosen due to vibration in long-term vibration environments, spring 22 and clamp 26 can better maintain the wire's fixed state and can adapt to wire thickness, allowing for easy reconnection of wires of different specifications without having to replace clamp 26.

[0040] Working principle: When the device is used, the electromagnet 8 is energized, and the electromagnet 8 produces a repulsive force on the conductive magnet 7, and the slider 9 slides inside the slide rail 6, thereby the electromagnetic dial block 10 is dialed to close the switch, and then the knob 4 can be pressed, and the knob 4 drives the limiting ring 17 to slide inside the placement groove 18 to compress the spring 16, and the knob 4 drives the connecting column 15, and then the connecting column 15 drives the card column 13 to slide out of the card slot 11, and then the knob 4 is turned, and then the knob 4 drives the connecting column 15 to rotate, and then the connecting column 15 drives the card column 13 to rotate inside the rotating groove 12, and then the knob 4 is released, and the spring 16 rebounds and drives the card column 13 to slide through the sliding groove 14 opened inside the air switch 1 to the connecting shell 5. The sliding groove 14 is opened to take out the connecting shell 5 and perform maintenance on it. After completion, put it back and turn the knob 4 again to fix it. Then, the wire is placed inside the wiring groove 3. When placing it, the contact surface with the clamp 26 is an inclined surface, which pushes the clamp 26 to move. The sliding block 27 is then driven by the clamp 26 to slide inside the fixed block 20, and the connecting blocks 21 on both sides of the sliding block 27 are driven to slide inside the limiting groove 19. The sliding plate 23 is then driven by the sliding block 27 to slide on the outer wall of the fixed column 25, and the spring 22 is stretched to place the wire inside the wiring groove 3. Then, it is connected by the connecting screw 2, and the spring 22 rebounds to drive the clamp 26 to clamp the wire, so as to stabilize the wire and prevent it from shaking due to external force.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A magnetically controlled electromagnet type fast closing circuit breaker, comprising an air switch (1), characterized in that: The air switch (1) is internally rotatably connected with a shift block (10), the air switch (1) is internally provided with a connecting screw (2), the air switch (1) is provided with a connecting shell (5) on the outer wall, the connecting shell (5) is internally provided with a connecting assembly, the connecting assembly is used to connect the connecting shell (5), the connecting shell (5) is internally provided with an opening and closing assembly, the opening and closing assembly is used to open and close the shift block (10), the air switch (1) is provided with a stabilizing assembly on the outer wall, the stabilizing assembly is used to stabilize the wires; The connecting assembly comprises a knob (4), the outer wall of the knob (4) is slidably connected to the inside of the connecting shell (5), a placement groove (18) is provided inside the connecting shell (5), a sliding groove (14) is provided inside the connecting shell (5), a rotation groove (12) is provided inside the air switch (1), a clamping groove (11) is provided inside the air switch (1), and another sliding groove (14) is also provided inside the air switch (1), and the outer wall of the knob (4) is rotatably connected to a limiting ring (17). The outer wall of the limiting ring (17) is slidably connected to the inside of the placement groove (18), the outer wall of the knob (4) is fixedly connected to a connecting column (15), the outer wall of the connecting column (15) is fixedly connected to a clamping column (13), the outer wall of the clamping column (13) is slidably connected to the inside of the clamping groove (11), the outer wall of the connecting column (15) is sleeved with a spring (16), one end of the spring (16) is fixedly connected to the inner wall of the placement groove (18), and the other end of the spring (16) is fixedly connected to the outer wall of the limiting ring (17).

2. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 1, characterized in that: The opening and closing assembly comprises a slide rail (6), a guide magnet (7), an electromagnet (8) and a slider (9); the slide rail (6) is arranged inside the connecting shell (5); the outer wall of the slider (9) is slidably connected to the inside of the guide magnet (7); the outer wall of the electromagnet (8) is fixedly connected to the inner wall of the connecting shell (5); and the outer wall of the guide magnet (7) is fixedly connected to the outer wall of the slider (9).

3. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 1, characterized in that: The stabilizing assembly comprises a fixing block (20), the outer wall of the fixing block (20) being fixedly connected to the outer wall of the air switch (1).

4. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 3, characterized in that: A wiring slot (3) is provided inside the air switch (1), and a limiting slot (19) is provided inside the fixing block (20).

5. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 4, characterized in that: A fixing column (25) is fixedly connected to the outer wall of the fixing block (20), and a limiting plate (24) is fixedly connected to the top of the fixing column (25).

6. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 5, characterized in that: The outer wall of the fixed column (25) is provided with a second spring (22), the bottom of the second spring (22) is fixedly connected to the top of the fixed block (20), and the top of the second spring (22) is fixedly connected to a sliding plate (23).

7. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 6, characterized in that: The interior of the sliding plate (23) is slidably connected to the outer wall of the fixed column (25), the outer wall of the sliding plate (23) is fixedly connected to a sliding block (27), and the outer wall of the sliding block (27) is slidably connected to the interior of the fixed block (20).

8. The magnetically controlled electromagnet type fast closing circuit breaker according to claim 7, characterized in that: The outer wall of the sliding block (27) is fixedly connected to a clamp (26), and both sides of the outer wall of the sliding block (27) are fixedly connected to connecting blocks (21), and the outer wall of the connecting block (21) is slidably connected to the inside of the limiting groove (19).

Images