Capacitor power-taking type circuit breaker

Abstract

The utility model relates to a capacitor power-taking type circuit breaker, and relates to the technical field of circuit breakers, the capacitor power-taking type circuit breaker comprises a mechanism box, the upper end face of the mechanism box is provided with a plurality of pole columns, the side wall of the mechanism box is provided with an opening and closing state indicator, the opening and closing state indicator comprises a plurality of fixing plates arranged on the mechanism box, and the fixing plates are provided with indicating plates. The indicating plate is inclined from the lower end face of the fixing plate to the upper end face of the fixing plate, the inclined face is gradually away from the mechanism box, and the mechanism box is rotationally connected with an indicating pointer used for displaying switching-on or switching-off of the circuit breaker. According to the invention, a worker can maintain the circuit breaker conveniently, the maintenance time is shortened, the climbing frequency of the worker can be avoided, and the potential safety hazard is reduced.

Description

Technical Field

[0001] This application relates to the field of circuit breaker technology, and in particular to a capacitor-powered circuit breaker. Background Technology

[0002] Pole-mounted circuit breakers are circuit breakers installed and operated on utility poles. With the rapid development of my country's economy and the continuous increase in power supply, especially with the increasing dependence of various customers on electricity, pole-mounted circuit breakers are often used on interconnections, sections, and branch lines in the power grid to improve the reliability of power supply.

[0003] In related technologies, workers often operate pole-mounted circuit breakers at heights, needing to climb to be parallel to the control panel to see the indicator symbols. This is especially problematic when inspecting closing or opening circuits, as workers must climb to the control panel to determine the status, making maintenance difficult. Summary of the Invention

[0004] To facilitate maintenance by workers, this application provides a capacitor-powered circuit breaker.

[0005] The capacitor-powered circuit breaker provided in this application adopts the following technical solution:

[0006] A capacitor-powered circuit breaker includes a mechanism box, with multiple poles arranged on the upper surface of the mechanism box. An open / closed status indicator is arranged on the side wall of the mechanism box. The open / closed status indicator includes several fixed plates arranged on the mechanism box. An indicator plate is arranged on the fixed plate. The indicator plate is inclined from the lower end of the fixed plate to the upper end of the fixed plate, and the inclined surface gradually moves away from the mechanism box. An indicator needle for indicating whether the circuit breaker is closed or open is rotatably connected to the mechanism box.

[0007] By adopting the above technical solution, the tilted indicator plate allows workers to observe the position of the indicator needle on the indicator plate by looking up, so that workers do not need to climb to be level with the operating platform. This is beneficial for workers to inspect and maintain the circuit breaker and shorten the maintenance time. At the same time, it can reduce the number of times workers need to climb and reduce safety hazards.

[0008] Optionally, the pole post surface is provided with several umbrella skirts for heat dissipation of the pole post surface area. The umbrella skirts are provided with fixing rings, and several torsion springs are provided inside the fixing rings. The fixing rings are provided with movable plates with the same number of torsion springs. The movable plates extend into the fixing rings and are fixed to the corresponding torsion springs.

[0009] By adopting the above technical solution, the umbrella skirt transfers heat energy to the movable plate through the torsion spring, thereby increasing the heat dissipation area of ​​the umbrella skirt. Under the action of the torsion spring, the movable plate swings within the fixed ring, which increases the airflow velocity on the surface of the movable plate, effectively increasing the heat dissipation efficiency of the movable plate, thereby increasing the service life of the circuit breaker and reducing the number of maintenance operations.

[0010] Optionally, an arc-shaped swing groove is provided inside the fixed ring, and the two opposite inner walls of the swing groove are both set as inclined surfaces, so that the movable plate swings between the two opposite inner walls of the swing groove.

[0011] By adopting the above technical solution, the movable plate swings between the two inclined planes, which can effectively increase the swing amplitude of the movable plate and further improve the heat dissipation efficiency of the movable plate.

[0012] Optionally, a drive ring is provided on the mechanism box, and an annular drive groove is opened in the drive ring. A drive gear ring is rotatably connected to the bottom of the drive groove. A drive motor is provided in the mechanism box, and a gear is provided on the power rod of the drive motor. The gear meshes with the drive gear ring.

[0013] By adopting the above technical solution, the drive motor controls the drive gear ring to rotate in the drive groove through gear control.

[0014] Optionally, the drive gear ring is provided with several drive blocks, and an arc-shaped partition is provided in the drive groove. The drive blocks slide along the drive groove between the arc-shaped partition and the bottom of the drive groove.

[0015] By adopting the above technical solution, the drive ring rotates and drives the drive block to rotate synchronously. The drive block rotates below the partition, which can effectively prevent the drive block from being wetted by external water droplets.

[0016] Optionally, the drive block is provided with a ramp, and the movable plate is provided with a swing rod. One end of the swing rod passes through the drive ring and the partition and abuts against the ramp of the drive block. The end of the swing rod slides along the ramp of the drive block.

[0017] By adopting the above technical solution, after the drive block rotates, the end of the swing rod slides along the slope and pushes the swing rod outward from the drive ring. At the same time, the swing rod is affected by its own weight, so that the end of the swing rod falls naturally after leaving the slope.

[0018] Optionally, the partition is provided with a number of swing springs that are the same as the swing rods. One end of the swing spring is set on the side wall of the partition away from the drive block, and the other end of the swing spring is fixedly set to the side wall of the corresponding swing rod.

[0019] By adopting the above technical solution, the swing spring is used to reduce the force of the swing rod falling when the swing rod falls, so as to avoid damage to the swing spring, and at the same time, it can increase the swing frequency of the swing rod.

[0020] Optionally, a number of balls are provided on the bottom of the drive groove, and the balls abut against the drive gear ring.

[0021] By adopting the above technical solution, the drive gear ring rotates on the balls, thereby reducing the friction between the drive gear ring and the bottom of the drive groove and increasing the service life of the drive gear ring.

[0022] Optionally, the mechanism box is equipped with an equipment information sheet. The equipment information sheet is made of metal, with text engraved on its surface and an anti-oxidation film on its surface.

[0023] By adopting the above technical solution, the equipment information chip made of metal can be effectively protected from damage.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. It facilitates workers' maintenance of circuit breakers and shortens maintenance time, while also reducing the number of times workers need to climb and minimizing safety hazards.

[0026] 2. Increasing the heat dissipation area of ​​the umbrella skirt by using a movable plate is beneficial to increasing the heat dissipation efficiency of the pole. The movable plate swings within the fixed ring under the action of the torsion spring, which increases the airflow velocity on the surface of the movable plate, further increasing the heat dissipation efficiency of the movable plate, thereby increasing the service life of the circuit breaker and reducing the number of maintenance times. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0028] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0029] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0030] Figure 4 yes Figure 3 A partial sectional view of the structure along the BB surface, mainly showing the fixing ring, umbrella skirt and swing rod;

[0031] Figure 5 yes Figure 3 A partial cross-sectional view of the BB plane, mainly showing the drive ring.

[0032] Figure Descriptions: 1. Mechanism box; 2. Pole post; 3. Capacitor power supply device; 4. Manual closing / opening handle; 5. Opening / closing status indicator; 501. Indicator needle; 502. Mounting plate; 503. Fixing plate; 504. Indicator plate; 505. Fixing component; 6. Energy storage handle; 7. Aviation socket; 8. Equipment information plate; 9. Umbrella skirt; 10. Fixing ring; 11. Movable plate; 12. Drive ring; 13. Swing rod; 14. Swing groove; 15. Inclined surface; 16. Torsion spring; 17. Notch; 18. Connecting groove; 19. Slot; 20. Connecting rod; 21. Drive groove; 22. Ball bearing; 23. Drive gear ring; 231. Gear block area; 232. Connecting area; 24. Ball bearing groove; 25. Drive motor; 26. Gear; 27. Drive block; 28. Ramp; 29. ​​Partition plate; 30. Swing spring. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0034] Example 1:

[0035] A capacitor-powered circuit breaker, as described in the reference. Figure 1 The system includes a mechanism housing 1, on which three pole posts 2 are inserted. Capacitor power extraction devices 3 are provided on both sides of the three pole posts 2 in the mechanism housing 1, and the pole posts 2 are connected to the capacitor power extraction devices 3.

[0036] The outer shell of the mechanism box 1 is a stainless steel sealed shell. The outer shell of the mechanism box 1 is fixedly connected to a manual closing / opening handle 4, a closing / opening status indicator 5, an energy storage handle 6, a grounding terminal, and an aviation socket 7.

[0037] Reference Figure 2 The open / closed state indicator 5 includes two fixing plates 503 fixedly connected to the outer shell of the mechanism housing 1. The fixing plates 503 are inclined on the side away from the mechanism housing 1. The inclined surface of the fixing plate 503 extends from the lower end of the mechanism housing 1 to the upper lower end surface of the mechanism housing 1, and the extended end of the fixing plate 503 gradually opens away from the mechanism housing 1.

[0038] A mounting plate 502 is fixedly connected to the side of the fixed plate 503 away from the mechanism box 1. An indicator plate 504 is fixedly connected to the side of the mounting plate 502 away from the mechanism box 1. The side of the indicator plate 504 away from the mechanism box 1 abuts against the mounting plate 502, so that the indicator plate 504 and the mounting plate 502 are inclined accordingly.

[0039] Two fasteners 505 are fixedly mounted through the mounting plate 502 to secure the indicator plate 504 to the mounting plate 502. An indicator needle 501 for indicating whether the circuit is closed or open is rotatably connected to the mechanism box 1.

[0040] Reference Figure 1 An equipment information plate 8, made of stainless steel, is fixedly connected to the top of the aviation socket 7. Text is laser-engraved on the surface of the equipment information plate 8, and an anti-oxidation film is evenly coated on its surface.

[0041] The outer casing of the pole 2 and the capacitor power supply device 3 is fixedly connected with several umbrella skirts 9 for heat dissipation.

[0042] Example 2:

[0043] A capacitor-powered circuit breaker, as described in the reference. Figure 3 The difference from Embodiment 1 is that each of the ends of several umbrella skirts 9 is fixedly connected to a fixing ring 10, and several movable plates 11 are provided inside the fixing ring 10. Three drive rings 12 are fixedly connected to the mechanism box 1, and the three drive rings 12 are respectively sleeved on the outside of the corresponding pole post 2. A swing rod 13 is provided at the end of the movable plate 11, and one end of the swing rod 13 extends into the corresponding drive ring 12.

[0044] Reference Figure 4 The fixing ring 10 has a continuous and uninterrupted arc-shaped swing groove 14 on the side away from the umbrella skirt 9. The swing groove 14 is set as inclined surfaces 15 on both sides of the inner wall, and the two inclined surfaces 15 extend in the direction towards the umbrella skirt 9 and the extension ends are far apart from each other.

[0045] The bottom of the swing groove 14 is fixedly connected to one end of a torsion spring 16 corresponding to the number of movable plates 11, and the other end of the torsion spring 16 is fixedly connected to the corresponding movable plate 11.

[0046] A notch 17 is provided on the side of the movable plate 11 away from the umbrella skirt 9, and a connecting groove 18 is provided on the side wall of the notch 17, and a locking groove 19 is provided on the side wall of the connecting groove 18. An arc-shaped locking rod 20 is fixedly connected to the side wall of the swing rod 13. The locking rod 20 extends into the connecting groove 18, and the end of the locking rod 20 abuts against the bottom of the locking groove 19 and slides along the bottom of the locking groove 19.

[0047] Reference Figure 5 The drive ring 12 has an annular drive groove 21, and a plurality of balls 22 are embedded in the bottom of the drive groove 21. The drive ring 12 is provided with a drive gear ring 23, and the side of the drive gear ring 23 away from the umbrella skirt 9 has a tooth block area 231 and a connecting area 232. The drive gear ring 23 has a ball 22 groove on its surface at the connecting area 232, and the balls 22 are partially embedded in the ball 22 groove.

[0048] The surface of the drive ring 12 has an arc-shaped opening, through which the tooth block area 231 of the drive gear ring 23 passes and extends out of the drive ring 12. Three drive motors 25 are fixedly connected inside the mechanism housing 1, corresponding to one side of the drive gear ring 23. Gears 26 are fixedly connected to the power rod of the drive motor 25, and the gears 26 mesh with the corresponding tooth block area 231 of the drive gear ring 23.

[0049] Several drive blocks 27 are fixedly connected to the side of the drive gear ring 23 near the swing rod 13, and gaps are provided between adjacent drive blocks 27. The ends of the drive blocks 27 are inclined upward to form ramps 28, and the ramps 28 and the sliding direction of the drive blocks 27 form an angle of less than or greater than 90°.

[0050] An arc-shaped partition 29 is fixedly connected to the side wall of the drive slot 21, and the drive block 27 is located below the partition 29. A swing spring 30 corresponding to the number of swing rods 13 is fixedly connected to the side of the partition 29 away from the drive block 27, and the swing spring 30 is axially sleeved on the corresponding swing rod 13. One end of the swing spring 30 is fixedly connected to the side wall of the swing rod 13 on which it is sleeved, and the other end of the swing spring 30 is fixedly connected to the partition 29.

[0051] The principle of Embodiment 2 of this application is as follows: the umbrella skirt 9 transfers heat energy to the movable plate 11 through the torsion spring 16, thereby increasing the heat dissipation area of ​​the umbrella skirt 9. The drive motor 25 controls the drive gear ring 23 to rotate and drives the drive block 27 to rotate along the drive groove 21. After the drive block 27 rotates, its ramp 28 abuts against the end of the swing rod 13 and pushes the swing rod 13 to slide upward, so that the swing rod 13 drives the movable plate 11 connected to it to swing upward. After the end of the swing rod 13 leaves the drive block 27, the swing rod 13 hangs down naturally and swings up and down under the action of the swing spring 30. At the same time, the movable plate 11 swings up and down under the action of the swing rod 13 and the torsion spring 16. As the drive gear ring 23 rotates, the ramp 28 of the next drive block 27 abuts against the swing rod 13, so that the swing rod 13 and the movable plate 11 continue to swing.

[0052] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A capacitor-powered circuit breaker, comprising a mechanism box (1), wherein a plurality of pole posts (2) are provided on the upper end face of the mechanism box (1), characterized in that: The mechanism box (1) is provided with an open / closed status indicator (5) on its side wall. The open / closed status indicator (5) includes several fixed plates (503) on the mechanism box (1). An indicator plate (504) is provided on the fixed plate (503). The indicator plate (504) is inclined from the lower end of the fixed plate (503) to the upper end of the fixed plate (503) and the inclined surface gradually moves away from the mechanism box (1). An indicator needle (501) for displaying whether the circuit breaker is closed or open is rotatably connected to the mechanism box (1).

2. The capacitor-powered circuit breaker according to claim 1, characterized in that: The surface of the pole post (2) is provided with a plurality of umbrella skirts (9) for heat dissipation of the surface area of ​​the pole post (2). A fixing ring (10) is provided on the umbrella skirt (9). A plurality of torsion springs (16) are provided inside the fixing ring (10). A movable plate (11) with the same number as the torsion springs (16) is provided on the fixing ring (10). The movable plate (11) extends into the fixing ring (10) and is fixed to the corresponding torsion spring (16).

3. A capacitor-powered circuit breaker according to claim 2, characterized in that: The fixed ring (10) has an arc-shaped swing groove (14) inside. The two opposite inner walls of the swing groove (14) are both set as inclined surfaces (15). The movable plate (11) swings between the two opposite inner walls of the swing groove (14).

4. A capacitor-powered circuit breaker according to claim 3, characterized in that: A drive ring (12) is provided on the mechanism box (1). An annular drive groove (21) is provided in the drive ring (12). A drive gear ring (23) is rotatably connected to the bottom of the drive groove (21). A drive motor (25) is provided in the mechanism box (1). A gear (26) is provided on the power rod of the drive motor (25). The gear (26) meshes with the drive gear ring (23).

5. A capacitor-powered circuit breaker according to claim 4, characterized in that: The drive gear ring (23) is provided with a plurality of drive blocks (27), and the drive groove (21) is provided with an arc-shaped partition (29). The drive blocks (27) slide along the drive groove (21) between the arc-shaped partition (29) and the bottom of the drive groove (21).

6. A capacitor-powered circuit breaker according to claim 5, characterized in that: The drive block (27) is provided with a ramp (28), and the movable plate (11) is provided with a swing rod (13). One end of the swing rod (13) passes through the drive ring (12) and the partition plate (29) and abuts against the ramp (28) of the drive block (27). The end of the swing rod (13) slides along the ramp (28) of the drive block (27).

7. A capacitor-powered circuit breaker according to claim 6, characterized in that: The partition (29) is provided with a number of swing springs (30) that are the same as the number of swing rods (13). One end of the swing spring (30) is provided on the side wall of the partition (29) away from the drive block (27), and the other end of the swing spring (30) is fixedly provided to the side wall of the corresponding swing rod (13).

8. A capacitor-powered circuit breaker according to claim 4, characterized in that: The bottom of the drive groove (21) is provided with a plurality of balls (22), and the plurality of balls (22) abut against the drive gear ring (23).

9. A capacitor-powered circuit breaker according to claim 8, characterized in that: The mechanism box (1) is provided with an equipment information piece (8), which is made of metal. The surface of the equipment information piece (8) is engraved with text and has an anti-oxidation film.

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