Non-contact opening and closing primary and secondary fusion pole-mounted circuit breaker

Abstract

The invention relates to the field of power equipment, in particular to a non-contact opening and closing primary and secondary fusion pole-mounted circuit breaker, which comprises a mechanism box and a plurality of solid-sealed polar poles, the solid-sealed polar poles are fixedly mounted on the top side of the mechanism box, first wiring terminals are fixedly mounted on the top sides of the solid-sealed polar poles, and a support frame is fixedly mounted on one side of the mechanism box. A plurality of second wiring terminals are fixedly installed on the supporting frame, a protective sleeve is fixedly installed between the second wiring terminals and the solid-sealed polar pole, a first conductive pole, a conductive plate and a second conductive pole are sequentially arranged in the protective sleeve, the first conductive pole is connected with the second wiring terminals, and the second conductive pole is connected with the solid-sealed polar pole. Conductive clamping plates are fixedly installed at the ends, facing each other, of the first conductive column and the second conductive column and used for clamping conductive plates, the protective sleeve is provided with a containing cover, and the conductive plates are provided with driving mechanisms used for driving the conductive plates to go in and out of the containing cover. The method has the effect of improving the operation stability of the power system.

Description

Technical Field

[0001] This application relates to the field of power equipment, and in particular to a contactless pole-mounted circuit breaker with integrated primary and secondary switching. Background Technology

[0002] In power systems, pole-mounted circuit breakers play a crucial role and are widely used in distribution networks to effectively control and protect circuits.

[0003] Existing pole-mounted circuit breakers typically include a mechanism box, on which multiple solid-sealed poles are fixedly mounted. A disconnecting switch, usually in the form of a knife switch, is also fixedly mounted on one side of the mechanism box. There are specific sequence requirements for opening and closing operations. When opening the pole-mounted circuit breaker, the disconnecting switch must be opened first, and then the mechanism box controls the opening of the solid-sealed poles; when closing the pole-mounted circuit breaker, the mechanism box controls the closing of the solid-sealed poles first, and then the disconnecting switch is closed. This operating method is a long-established standard procedure in this field.

[0004] Since pole-mounted circuit breakers are generally installed outdoors, disconnecting switches are exposed to the outdoor environment and are affected by various natural factors over a long period of time. As a result, disconnecting switches are prone to aging and poor contact, which affects the stability of the power system operation. Summary of the Invention

[0005] To improve the stability of power system operation, this application provides a contactless pole-mounted circuit breaker that integrates primary and secondary switching.

[0006] This application provides a contactless pole-mounted circuit breaker with integrated primary and secondary switching, which adopts the following technical solution: A contactless, integrated primary and secondary pole-mounted circuit breaker includes a mechanism box and multiple solid-sealed poles. The solid-sealed poles are fixedly installed on the top side of the mechanism box. A first terminal block is fixedly installed on the top side of each solid-sealed pole. A support frame is fixedly installed on one side of the mechanism box, and multiple second terminal blocks are fixedly installed on the support frame. A protective sleeve is fixedly installed between the second terminal blocks and the solid-sealed poles. Inside the protective sleeve, a first conductive post, a conductive plate, and a second conductive post are sequentially arranged. The first conductive post is connected to the second terminal block, and the second conductive post is connected to the solid-sealed pole. Conductive clamps are fixedly installed at opposite ends of the first and second conductive posts, and these clamps are used to hold the conductive plates. A receiving cover is installed on the protective sleeve, and a driving mechanism is installed on the conductive plates to drive the conductive plates in and out of the receiving cover.

[0007] By adopting the above technical solution, the first conductive post and the second conductive post are electrically connected by clamping the conductive plate with a conductive clamp, which can realize the function of a disconnecting switch; the protective sleeve wraps around the first conductive post, the conductive plate and the second conductive post to play a protective role, which can reduce the impact of the aging of the first conductive post, the conductive plate and the second conductive post on the stability of the power system operation and improve the stability of the power system operation.

[0008] Optionally, the driving mechanism includes a driving frame, a first driving rod, and a second driving rod. The driving frame is sleeved on the receiving cover and the protective sleeve. The first driving rod and the second driving rod are distributed on both sides of the conductive plate. One end of the first driving rod and one end of the second driving rod are both abutted against the conductive plate. The other end of the first driving rod slides through the receiving cover and is connected to the driving frame. The other end of the second driving rod slides through the protective sleeve and is connected to the driving frame.

[0009] By adopting the above technical solution, when the drive frame is moved away from the solid-sealing pole, the drive frame can use the first drive rod to push the conductive plate from the receiving cover into the protective sleeve, so that the conductive clamp can hold the conductive plate; when the drive frame is moved towards the solid-sealing pole, the drive frame can use the second drive rod to push the conductive plate from the protective sleeve into the receiving cover, thereby achieving the shutdown.

[0010] Optionally, a linkage rod is fixedly installed between each of the drive frames, and the support frame is hinged with a first push rod and a second push rod, which clamp the linkage rod.

[0011] By adopting the above technical solution, multiple drive frames can be moved through the linkage rod, the first push rod, and the second push rod, which facilitates unified control of the movement of the conductive plate and realizes contactless opening and closing of the gate.

[0012] Optionally, the first drive rod is elastic and is equipped with a bending mechanism. When the conductive clamp holds the conductive plate, the bending mechanism drives the first drive rod to bend upward and separate from the conductive plate, and the second drive rod separates from the conductive plate.

[0013] By adopting the above technical solution, when the conductive plate is clamped by the conductive clamp, a bending mechanism is used to bend the elastic first drive rod upwards to separate it from the conductive plate, and to separate the second drive rod from the conductive plate. This reduces the contact between the first drive rod and the conductive plate, thus minimizing its impact on conductivity, reducing contact wear, and improving the stability and service life of the pole-mounted circuit breaker. Optionally, the bending mechanism includes a shaft, a guide rod, a gear, a take-up reel, a support block, and a pull rope. There are two of each of the take-up reel, support block, and pull rope. The shaft and guide rod are rotatably mounted inside the receiving cover. The guide rod is positioned higher than the conductive plate. The gear and take-up reel are fixedly sleeved on the shaft. The first drive rod has multiple toothed grooves and meshes with the gear through these grooves. The support block is lifted and installed on the inner side wall of the receiving cover. The pull rope is fixedly installed between the take-up reel and the support block and is wound around the guide rod. The diameters of both the first and second drive rods are greater than the thickness of the conductive plate. A space is left between the two support blocks for the conductive plate to pass through.

[0014] By adopting the above technical solution, when the drive frame moves back and forth to control the on and off, the first drive rod drives the gear to rotate, and the gear drives the take-up reel to rotate through the shaft. The rotation of the take-up reel realizes the winding and unwinding of the pull rope, and the pull rope drives the support block to rise and fall. When the support block rises, the first drive rod can bend upward and separate from the conductive plate.

[0015] Optionally, the distance between the inner walls on both sides of the receiving cover is equal to the thickness of the conductive plate. The inner walls on both sides of the receiving cover are bent outward to form a placement groove, a sliding groove, and a lifting groove. The first drive rod is slidably disposed in the sliding groove, and the support block is slidably disposed in the lifting groove. The placement groove is connected to the lifting groove, and the gear, the winding reel, and the pull rope are located inside the placement groove and the lifting groove.

[0016] By adopting the above technical solution, setting the distance between the inner walls on both sides of the receiving cover to be equal to the thickness of the conductive plate can guide and limit the conductive plate, ensuring stable movement of the conductive plate; the inner walls on both sides of the receiving cover are bent to form placement grooves, sliding grooves and lifting grooves, providing installation space for the first drive rod, support block, gear, take-up reel and pull rope, and guiding the first drive rod and support block through the sliding groove and lifting groove, and placing the gear, take-up reel and pull rope through the placement groove, so that the layout of each component is reasonable.

[0017] Optionally, a non-powered fan is fixedly installed at the end of the protective sleeve away from the second terminal, and an expansion cover is fixedly installed on the periphery of the end of the protective sleeve close to the second terminal. A ventilation opening is provided on the bottom side of the expansion cover, and a filter screen is fixedly installed inside the ventilation opening.

[0018] By adopting the above technical solutions, the installation of a non-powered fan and vents helps to accelerate the airflow inside the protective sleeve and improve the heat dissipation effect.

[0019] Optionally, the solid-sealed pole is equipped with a first protective tube, which is sleeved on the first terminal block. A second protective tube is installed at the end of the protective sleeve away from the solid-sealed pole, and the second protective tube is sleeved on the second terminal block.

[0020] By adopting the above technical solution, using a first protective tube to cover the first terminal and a second protective tube to cover the second terminal, the first and second terminals can be prevented from being exposed to the outdoors, reducing aging and poor contact problems.

[0021] Optionally, a first mounting ring is fixedly installed at the end of the protective sleeve away from the solid-sealing pole, the first protective tube damping is sleeved on the first mounting ring, the solid-sealing pole is fixedly installed with a second mounting ring, and the second protective tube damping is sleeved on the second mounting ring.

[0022] By adopting the above technical solution, before connecting the cable to the first terminal and the second terminal, the first protective tube can be removed from the first mounting ring and put into the cable, and the second protective tube can be removed from the second mounting ring and put into the cable. After connection, the first protective tube can be put into the first mounting ring and the second protective tube can be put into the second mounting ring, thus achieving the effect of convenient cable connection.

[0023] Optionally, the end of the first protective tube away from the protective sleeve is inclined, and the end of the second protective tube away from the solid-sealing pole is inclined.

[0024] By adopting the above technical solution, it is beneficial to reduce the amount of rainwater entering the first and second protective pipes.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The circuit is switched on and off by using conductive clamps to hold the conductive plate. The protective sleeve wraps around the first conductive post, the second conductive post and the conductive plate, which delays the problem of poor contact due to aging and improves the stability of the power system operation. 2. The drive mechanism can drive the conductive plate in and out of the housing, realizing contactless opening and closing of the gate, making the operation safer and more reliable. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is an exploded view of an embodiment of this application; Figure 3 This is a top view of the protective sleeve according to an embodiment of this application; Figure 4 yes Figure 3 Sectional view at AA; Figure 5 This is a schematic diagram of the drive mechanism in an embodiment of this application; Figure 6 This is a schematic diagram of the drive mechanism and bending mechanism in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of the protective sleeve in an embodiment of this application.

[0027] Explanation of reference numerals in the attached drawings: 1. Mechanism box; 2. Solid sealing pole; 3. Support frame; 4. First terminal; 5. Second terminal; 6. Protective sleeve; 7. First conductive post; 8. Conductive plate; 9. Second conductive post; 10. Conductive clamp; 11. Receiving cover; 12. Drive mechanism; 121. Drive frame; 122. First drive rod; 123. Second drive rod; 13. Linkage rod; 14. First push rod; 15. Second push rod ; 16. Bending mechanism; 161. Shaft; 162. Guide rod; 163. Gear; 164. Rewinding reel; 165. Support block; 166. Pull rope; 17. Gear groove; 18. Placement groove; 19. Sliding groove; 20. Lifting groove; 21. Non-powered fan; 22. Expansion cover; 23. Ventilation opening; 24. Filter screen; 25. First mounting ring; 26. Second mounting ring; 27. First protective tube; 28. Second protective tube. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0029] This application discloses a contactless pole-mounted circuit breaker that integrates primary and secondary circuit opening and closing.

[0030] Reference Figure 1 , Figure 2 A contactless, integrated primary and secondary pole-mounted circuit breaker includes a mechanism box 1 and multiple solid-sealed poles 2. The solid-sealed poles 2 are fixedly installed on the top side of the mechanism box 1, and a support frame 3 is fixedly installed on one side of the mechanism box 1. A first terminal 4 is fixedly installed on the top of the solid-sealed pole 2, and multiple second terminals 5 are fixedly installed on the support frame 3.

[0031] Reference Figure 3 , Figure 4 A protective sleeve 6 is fixedly installed between the second terminal 5 and the solidified electrode 2. Inside the protective sleeve 6, a first conductive post 7, a conductive plate 8, and a second conductive post 9 are sequentially arranged. The first conductive post 7 is connected to the second terminal 5, and the second conductive post 9 is connected to the solidified electrode 2. Conductive clamps 10 are fixedly installed at the ends of both the first conductive post 7 and the second conductive post 9 that face each other. A receiving cover 11 is installed on the protective sleeve 6, and a drive mechanism 12 is installed on the conductive plate 8.

[0032] The driving mechanism 12 drives the conductive plate 8 into the protective sleeve 6, and the conductive clamp 10 clamps the conductive plate 8, thereby connecting the circuit. The driving mechanism 12 drives the conductive plate 8 into the receiving cover 11, and the conductive clamp 10 releases the conductive plate 8, thereby disconnecting the circuit.

[0033] Reference Figure 4 , Figure 5The driving mechanism 12 includes a driving frame 121, a first driving rod 122, and a second driving rod 123. The driving frame 121 is sleeved on the receiving cover 11 and the protective sleeve 6. The first driving rod 122 and the second driving rod 123 are distributed on both sides of the conductive plate 8. One end of the first driving rod 122 and one end of the second driving rod 123 abut against the conductive plate 8. The other end of the first driving rod 122 slides through the receiving cover 11 and is connected to the driving frame 121. The other end of the second driving rod 123 slides through the protective sleeve 6 and is connected to the driving frame 121. When the driving frame 121 moves, it drives the first driving rod 122 and the second driving rod 123 to move, thereby driving the conductive plate 8 to move in and out of the receiving cover 11.

[0034] Reference Figure 1 A linkage rod 13 is fixedly installed between each drive frame 121. The support frame 3 is hinged with a first push rod 14 and a second push rod 15, which clamp the linkage rod 13. Rotating the first push rod 14 and the second push rod 15 drives the linkage rod 13 to move, thereby facilitating the movement of each drive frame 121 together.

[0035] Reference Figure 4 , Figure 6 The first drive rod 122 is elastic and is equipped with a bending mechanism 16. The bending mechanism 16 includes a shaft 161, a guide rod 162, a gear 163, a winding reel 164, a support block 165, and a pull rope 166.

[0036] Both shaft 161 and guide rod 162 are rotatably mounted inside housing 11. Guide rod 162 is positioned higher than conductive plate 8 to guide the direction of pull rope 166. Gear 163 and take-up reel 164 are both fixedly sleeved on shaft 161. Gear 163 rotates synchronously with take-up reel 164 via shaft 161.

[0037] The first drive rod 122 has multiple toothed grooves 17, which mesh with the gear 163. When the first drive rod 122 moves, it drives the gear 163 to rotate. The support block 165 is vertically mounted on the inner wall of the housing 11, and the pull rope 166 is fixedly mounted between the take-up reel 164 and the support block 165 and wound around the guide rod 162. When the take-up reel 164 rotates, the pull rope 166 drives the support block 165 to rise and fall.

[0038] As the drive frame 121 moves away from the solid-sealed pole 2, the conductive clamp 10 holds the conductive plate 8, and the circuit is connected. During the movement of the drive frame 121 away from the solid-sealed pole 2, the first drive rod 122 drives the winding reel 164 to wind up the pull rope 166 through the gear 163 and the shaft 161, thereby causing the support block 165 to rise. After the support block 165 rises, it pushes the first drive rod 122 upward, causing it to bend and deform upward, separating it from the conductive plate 8. This reduces the possibility of the first drive rod 122 contacting the conductive plate 8 and affecting conductivity, and also helps to reduce contact wear, improving the stability and service life of the pole-mounted circuit breaker. Furthermore, when the electric clamp holds the conductive plate 8, the second drive rod 123 also separates from the conductive plate 8.

[0039] The distance between the inner walls on both sides of the receiving cover 11 is equal to the thickness of the conductive plate 8. The inner walls on both sides of the receiving cover 11 are bent outward to form a placement groove 18, a sliding groove 19, and a lifting groove 20. The first drive rod 122 is slidably disposed in the sliding groove 19, and the support block 165 is slidably disposed in the lifting groove 20. The placement groove 18 is connected to the lifting groove 20. The gear 163, the winding reel 164, and the pull rope 166 are located inside the placement groove 18 and the lifting groove 20. The diameters of the first drive rod 122 and the second drive rod 123 are both greater than the thickness of the conductive plate 8, and a space is left between the two support blocks 165 for the conductive plate 8 to pass through.

[0040] Reference Figure 1 , Figure 7 A non-powered fan 21 is fixedly installed at the end of the protective sleeve 6 away from the second terminal 5, and an expansion cover 22 is fixedly installed on the periphery of the end of the protective sleeve 6 closest to the second terminal 5. A ventilation opening 23 is provided on the bottom side of the expansion cover 22, and a filter screen 24 is fixedly installed inside the ventilation opening 23. The arrangement of the non-powered fan 21 and the ventilation opening 23 helps to accelerate the airflow inside the protective sleeve 6 and improve the heat dissipation effect.

[0041] Reference Figure 1 , Figure 2 A first mounting ring 25 is fixedly installed on the solid-sealed pole 2. The first mounting ring 25 is damped and fitted with a first protective tube 27, which is fitted onto the first terminal 4. A second mounting ring 26 is fixedly installed at the end of the protective sleeve 6 away from the solid-sealed pole 2. The second mounting ring 26 is damped and fitted with a second protective tube 28, which is fitted onto the second terminal 5. The first protective tube 27 protects the first terminal 4, and the second protective tube 28 protects the second terminal 5, thereby slowing down the aging rate of the first terminal 4 and the second terminal 5 and improving the stability of the power system operation.

[0042] The first protective tube 27 is bent downward at the end away from the protective sleeve 6, and the second protective tube 28 is bent downward at the end away from the solid sealing pole 2, thereby reducing the occurrence of rainwater entering the first protective tube 27 and the second protective tube 28.

[0043] The implementation principle of a contactless pole-mounted circuit breaker with integrated primary and secondary switching in this application embodiment is as follows: The drive frame 121 drives the first drive rod 122 and the second drive rod 123 to move synchronously, causing the conductive plate 8 to slide into the receiving cover 11 to close the circuit. At this time, the bending mechanism 16 releases the constraint on the drive rod, straightening it, and the conductive clamp 10 returns to the contact state due to its own elasticity. During opening, the reverse operation causes the conductive plate 8 to enter the protective sleeve 6, and the conductive clamp 10 holds the conductive plate 8, thus completing the circuit. The entire process is completed in a fully enclosed environment, effectively isolating it from external environmental corrosion, thereby delaying aging and providing stability for the power system operation.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A contactless pole-mounted circuit breaker integrating primary and secondary switching, characterized in that: The device includes a mechanism housing (1) and multiple solid-sealed terminals (2). The solid-sealed terminals (2) are fixedly installed on the top side of the mechanism housing (1). A first terminal block (4) is fixedly installed on the top side of the solid-sealed terminal block (2). A support frame (3) is fixedly installed on one side of the mechanism housing (1). Multiple second terminals (5) are fixedly installed on the support frame (3). A protective sleeve (6) is fixedly installed between the second terminals (5) and the solid-sealed terminals (2). Inside the protective sleeve (6), a first conductive post (7), a conductive plate (8), and a conductive plate (9) are arranged in sequence. The second conductive post (9) is connected to the first conductive post (7) and the second terminal (5). The second conductive post (9) is connected to the solid-sealing pole (2). The first conductive post (7) and the second conductive post (9) are both fixedly installed with conductive clamps (10) at their opposite ends. The conductive clamps (10) are used to hold the conductive plate (8). The protective sleeve (6) is equipped with a receiving cover (11). The conductive plate (8) is equipped with a driving mechanism (12). The driving mechanism (12) is used to drive the conductive plate (8) to enter and exit the receiving cover (11).

2. The contactless switching and closing integrated pole-mounted circuit breaker according to claim 1, characterized in that: The driving mechanism (12) includes a driving frame (121), a first driving rod (122), and a second driving rod (123). The driving frame (121) is fitted onto the receiving cover (11) and the protective sleeve (6). The first driving rod (122) and the second driving rod (123) are distributed on both sides of the conductive plate (8). One end of the first driving rod (122) and one end of the second driving rod (123) are both abutted against the conductive plate (8). The other end of the first driving rod (122) slides through the receiving cover (11) and is connected to the driving frame (121). The other end of the second driving rod (123) slides through the protective sleeve (6) and is connected to the driving frame (121).

3. The contactless switching and closing integrated pole-mounted circuit breaker according to claim 2, characterized in that: A linkage rod (13) is fixedly installed between each of the drive frames (121), and the support frame (3) is hinged with a first push rod (14) and a second push rod (15), which clamp the linkage rod (13).

4. The contactless switching and closing integrated pole-mounted circuit breaker according to claim 2, characterized in that: The first drive rod (122) is elastic and is equipped with a bending mechanism (16). When the conductive clamp (10) clamps the conductive plate (8), the bending mechanism (16) drives the first drive rod (122) to bend upward and separate from the conductive plate (8), and the second drive rod (123) separates from the conductive plate (8).

5. A contactless pole-mounted circuit breaker with integrated primary and secondary switching as described in claim 4, characterized in that: The bending mechanism (16) includes a shaft (161), a guide rod (162), a gear (163), a winding reel (164), a support block (165), and a pull rope (166). There are two winding reels (164), two support blocks (165), and two pull ropes (166). The shaft (161) and the guide rod (162) are rotatably mounted inside the housing (11). The guide rod (162) is positioned higher than the conductive plate (8). The gear (163) and the winding reel (164) are fixedly sleeved on the shaft (161). The first drive rod (12) 2) Multiple toothed grooves (17) are provided. The first drive rod (122) meshes with the gear (163) through the toothed groove (17). The support block (165) is lifted and installed on the inner side wall of the receiving cover (11). The pull rope (166) is fixedly installed between the winding reel (164) and the support block (165). The pull rope (166) is wound around the guide rod (162). The diameters of the first drive rod (122) and the second drive rod (123) are both greater than the thickness of the conductive plate (8). There is space between the two support blocks (165) for the conductive plate (8) to pass through.

6. A contactless pole-mounted circuit breaker with integrated primary and secondary switching as described in claim 5, characterized in that: The distance between the inner walls on both sides of the receiving cover (11) is equal to the thickness of the conductive plate (8). The inner walls on both sides of the receiving cover (11) bend outward to form a placement groove (18), a sliding groove (19), and a lifting groove (20). The first drive rod (122) is slidably disposed in the sliding groove (19). The support block (165) is slidably disposed in the lifting groove (20). The placement groove (18) is connected to the lifting groove (20). The gear (163), the winding reel (164), and the pull rope (166) are located inside the placement groove (18) and the lifting groove (20).

7. The contactless switching and closing integrated pole-mounted circuit breaker according to claim 1, characterized in that: A non-powered fan (21) is fixedly installed at the end of the protective sleeve (6) away from the second terminal (5). An expansion cover (22) is fixedly installed on the periphery of the end of the protective sleeve (6) close to the second terminal (5). A vent (23) is opened on the bottom side of the expansion cover (22). A filter screen (24) is fixedly installed inside the vent (23).

8. A contactless pole-mounted circuit breaker with integrated primary and secondary switching as described in claim 1, characterized in that: The solid-sealed pole (2) is equipped with a first protective tube (27), which is sleeved on the first terminal (4). The protective sleeve (6) is equipped with a second protective tube (28) at the end away from the solid-sealed pole (2), which is sleeved on the second terminal (5).

9. A contactless pole-mounted circuit breaker with integrated primary and secondary switching as described in claim 8, characterized in that: The protective sleeve (6) is fixedly installed with a first mounting ring (25) at one end away from the solid-sealing pole (2), and the first protective tube (27) is damped and sleeved on the first mounting ring (25). The solid-sealing pole (2) is fixedly installed with a second mounting ring (26), and the second protective tube (28) is damped and sleeved on the second mounting ring (26).

10. A contactless pole-mounted circuit breaker with integrated primary and secondary switching as described in claim 8, characterized in that: The first protective tube (27) is inclined at one end away from the protective sleeve (6), and the second protective tube (28) is inclined at one end away from the solid seal post (2).

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