Insulated ring main unit structure of a drawer-type circuit breaker unit

Abstract

The utility model relates to the technical field of circuit breaker, concretely is a kind of drawer type circuit breaker unit's insulated ring net cabinet structure, including gas tank, the first through -hole is opened in the both sides of gas tank, the outgoing line bushing plug is installed in the downside of gas tank, the second through -hole is opened in the bottom of gas tank, the inside of gas tank is provided with core component, the bottom of core component is provided with disconnecting component, the outside of core component is provided with linkage component.The utility model adopts three station structure, and adjacent switch equipment body is connected by solid insulation bus, is provided through disconnecting component, adopts driving shaft, under the cooperation of first connecting block, second connecting block and movable sleeve, realize connection and close, so that opening and reset are safer and more reliable;Through the setting of linkage component, under the driving of driving device, cooperate first connecting plate, fourth connecting plate and third connecting plate, realize double opening mode, ensure the safety of device.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an insulated ring main unit structure for a drawer-type circuit breaker unit. Background Technology

[0002] A drawer-type circuit breaker is a circuit breaker that can disconnect a power supply. It is formed by placing the circuit breaker body in a drawer-type socket. The purposes of designing a drawer-type circuit breaker are twofold: firstly, it facilitates circuit breaker replacement. If a circuit breaker in operation fails, a spare circuit breaker can be quickly replaced. Simply pull the damaged circuit breaker out of the drawer and install the new one, minimizing power outage time; secondly, it can be used as an isolator. When a circuit or equipment needs maintenance, for safety isolation, the circuit breaker body can be pulled out, immediately disconnecting the circuit. After a period of operation, drawer-type circuit breakers require maintenance. Maintenance includes deoxidation of the main body's outgoing terminals and deoxidation or even replacement of the bridge-type contacts in the drawer base. This requires simultaneous disassembly and maintenance of both the main body and the drawer base.

[0003] While the traditional drawer-type circuit breaker, which mounts the bridge-shaped contacts of the drawer base onto the main body's outgoing line bar, compensates for the inconvenience of maintenance, it results in the drawer base of the circuit breaker lacking bridge-shaped contacts, leaving only the connecting bar for external installation. This leads to a single disconnection method and a lack of safety. To address these issues, we propose an insulated ring main unit structure for the drawer-type circuit breaker unit. Utility Model Content

[0004] The purpose of this utility model is to provide an insulated ring main unit structure for a drawer-type circuit breaker unit, so as to solve the problems mentioned in the background art of the drawer-type circuit breaker having no bridge-type contacts in the drawer seat, leaving only the connecting bar for external installation, a single disconnection method, and a lack of safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an insulated ring main unit structure for a drawer-type circuit breaker unit, including a gas box, first connecting holes on both sides of the gas box, an outgoing sleeve plug installed on the lower side of the gas box, a second connecting hole at the bottom of the gas box, a core component inside the gas box, a disconnection component at the bottom of the core component, and a linkage component on the outer side of the core component; The core components include a mounting bracket, safety posts, a vacuum tube, and a first busbar. Two sets of mounting brackets are installed inside the gas box, and safety posts are connected to the four corners of the two sets of mounting brackets. A vacuum tube is installed at the center of the mounting bracket, and the first busbar is connected to the outer side of the mounting bracket.

[0006] Preferably, the disconnecting assembly includes a connecting rod, a movable sleeve, a first bolt, a second bolt, a rotating shaft, a first connecting block, a second connecting block, a second busbar, and a third connecting block. The connecting rod is connected to the bottom of the fixed frame, and the movable sleeve is movably connected to the outer side of the connecting rod. The top of the connecting rod is connected to the bottom of the fixed frame via the first bolt, and the bottom of the connecting rod is connected to the third connecting block via the second bolt. A rotating shaft is rotatably installed inside the air box, and a first connecting block is installed on the outer surface of the rotating shaft. A second connecting block is connected to one end of the first connecting block, and the other end of the second connecting block is connected to the outer surface of the movable sleeve. A second busbar is installed on the inner wall of the air box, and the outer side of the second busbar is connected to the third connecting block.

[0007] Preferably, the linkage assembly includes a drive device, a first connecting plate, a second connecting plate, a support frame, a fixed rod, a third connecting plate, a fourth connecting plate, a magnetic levitation device, and a connecting frame. The support frame is fixedly installed on the outer surface of the air box. The drive device is installed on the top inner side of the air box. The output end of the drive device is fixedly connected to the first connecting plate. The other end of the first connecting plate is rotatably connected to the second connecting plate. The end of the second connecting plate is rotatably connected to the fourth connecting plate. The fixed rod is installed inside the support frame. Two sets of third connecting plates are connected to the outer surface of the fixed rod. The end of the third connecting plate is connected to the fourth connecting plate. The magnetic levitation device is installed inside the support frame. The output end of the magnetic levitation device is connected to the connecting frame.

[0008] Preferably, the top two sides of the vacuum tube are connected to connecting ends, the outer side of the connecting ends corresponds to the first connecting hole, and a side passage pipe is installed on the inner side of the first connecting hole.

[0009] Preferably, a connecting cable is connected to the bottom of the third connecting block, and a connector is connected to the other end of the connecting cable, the connector corresponding to the outlet sleeve plug.

[0010] Preferably, an optical lens is fixedly connected to the surface of the air box, the optical lens corresponds to the position of the disconnect component, and a supplementary light is installed on the surface of the air box above the optical lens.

[0011] Preferably, a baffle is installed inside the second communicating hole, and the baffle is made of a polymer material.

[0012] Preferably, a connecting tube is connected to the outside of the connector, and the other end of the connecting tube is connected to the outlet sleeve plug.

[0013] Preferably, the vacuum tube is made of ceramic, the connecting end is made of copper, and the unconnected part is wrapped with tape.

[0014] Preferably, the entire air box is made of stainless steel.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model adopts a three-position structure, with adjacent switchgear bodies connected by solid insulated busbars. By setting the disconnection component, a rotating shaft is used for driving. With the cooperation of the first connecting block, the second connecting block and the movable sleeve, the connection and closing are realized, making opening and resetting safer and more reliable.

[0016] 2. By setting up linkage components, this utility model enables the first connecting plate to cooperate with the second, fourth, and third connecting plates under the drive of the driving device, thereby achieving a dual opening method and ensuring the safety of the device. Attached image description: To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic cross-sectional view of the air box in the figure of this utility model; Figure 5 This is a schematic diagram of the structure of the core component and the disconnection component of this utility model; Figure 6 This utility model Figure 5 A magnified view of part A in the diagram; Figure 7 This is a schematic diagram of the linkage component of this utility model.

[0018] In the diagram: 1. Gas box; 2. First connecting hole; 3. Outlet sleeve plug; 4. Second connecting hole; 5. Core component; 501. Fixing bracket; 502. Safety anchor; 503. Vacuum tube; 504. First busbar; 6. Disconnection component; 601. Connecting rod; 602. Movable sleeve; 603. First bolt; 604. Second bolt; 605. Rotating shaft; 606. First connecting block; 607. Second connecting block; 608. Second busbar; 6 09. Third connecting block; 7. Linkage component; 701. Drive device; 702. First connecting plate; 703. Second connecting plate; 704. Support frame; 705. Fixing rod; 706. Third connecting plate; 707. Fourth connecting plate; 708. Magnetic levitation; 709. Connecting frame; 8. Connecting end; 9. Side passage pipe; 10. Connecting cable; 11. Connector; 12. Baffle; 13. Optical lens; 14. Fill light; 15. Connecting pipe. Detailed implementation method: The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-7 This utility model provides an embodiment of an insulated ring main unit structure for a drawer-type circuit breaker unit, including a gas box 1. First connecting holes 2 are provided on both sides of the gas box 1. A cable outlet bushing plug 3 is installed on the lower side of the gas box 1. A second connecting hole 4 is provided at the bottom of the gas box 1, facilitating connection of external equipment or ground wires from the bottom to the inside of the gas box 1. A core component 5 is installed inside the gas box 1 through reinforcing ribs. A disconnect component 6 is provided at the bottom of the core component 5. A linkage component 7 is provided on the outer side of the core component 5. The main switch is designed with a manual tripping shaft 605 for emergency manual tripping operations. It uses an aviation plug for external connection and has a built-in 2000mAh rechargeable lithium battery as a backup power source. In the event of a drive module failure or loss of system power, an emergency closing operation can be performed via a portable device with the built-in lithium battery. The capacitor meets the requirement of 5000 hours of operation at 105℃. The core component 5 includes a mounting bracket 501, a safety anchor 502, a vacuum tube 503, and a first busbar 504. Two sets of mounting brackets 501 are installed inside the gas box 1. Safety anchors 502 are connected to the four corners of the two sets of mounting brackets 501. A vacuum tube 503 is installed at the center of the mounting bracket 501. The first busbar 504 is connected to the outside of the mounting bracket 501. This device solves the problems of drawer-type circuit breakers, which have no bridge-shaped contacts in the drawer seat, leaving only the connecting bar for external installation, and have a single disconnection method and lack of safety, by having an internal fast manual three-phase opening and closing mechanical linkage.

[0020] Furthermore, the disconnect assembly 6 includes a connecting rod 601, a movable sleeve 602, a first bolt 603, a second bolt 604, a rotating shaft 605, a first connecting block 606, a second connecting block 607, a second busbar 608, and a third connecting block 609. The connecting rod 601 is connected to the bottom of the fixed frame 501, and the movable sleeve 602 is movably connected to the outer side of the connecting rod 601. The top of the connecting rod 601 is connected to the bottom of the fixed frame 501 by the first bolt 603, and the bottom of the connecting rod 601 is connected by the second bolt 604. A third connecting block 609 is connected. A groove adapted to the first bolt 603 and the second bolt 604 is opened inside the movable sleeve 602. A rotating shaft 605 is rotatably mounted inside the air box 1. A first connecting block 606 is mounted on the outer surface of the rotating shaft 605. A second connecting block 607 is connected to one end of the first connecting block 606. The other end of the second connecting block 607 is connected to the outer surface of the movable sleeve 602. A second busbar 608 is installed on the inner wall of the air box 1. The outer side of the second busbar 608 is connected to the third connecting block 609. Figure 6 As shown, this structure is used to drive the first connecting block 606 to pull the second connecting block 607 by rotating the shaft 605, so that the movable sleeve 602 moves along the connecting rod 601, thereby disconnecting the first busbar 504 and the second busbar 608.

[0021] Furthermore, the linkage component 7 includes a drive device 701, a first connecting plate 702, a second connecting plate 703, a support frame 704, a fixing rod 705, a third connecting plate 706, a fourth connecting plate 707, a magnetic levitation 708, and a connecting frame 709. The support frame 704 is fixedly installed on the outer surface of the air box 1. The drive device 701 is installed on the top inner side of the air box 1. The output end of the drive device 701 is fixedly connected to the first connecting plate 702. The other end of the first connecting plate 702 is rotatably connected to the second connecting plate 703. The end of the second connecting plate 703 is rotatably connected to the fourth connecting plate 707. The fixing rod 705 is installed inside the support frame 704. Two sets of third connecting plates 706 are connected to the outer surface of the fixing rod 705. The end of the third connecting plate 706 is connected to the fourth connecting plate 707. The magnetic levitation 708 is installed inside the support frame 704. The output end of the magnetic levitation 708 is connected to the connecting frame 709. Figure 7 As shown, the structure is used to drive the first connecting plate 702 to rotate via the drive device 701. The rotation of the first connecting plate 702 pulls the second connecting plate 703 and the fourth connecting plate 707, causing the third connecting plate 706 to swing and disengage from the connecting frame 709, breaking the connection with the magnetic levitation 708.

[0022] Furthermore, the top two sides of the vacuum tube 503 are connected to connecting ends 8, the outer side of the connecting ends 8 corresponds to the first connecting hole 2, and the inner side of the first connecting hole 2 is equipped with a side passage pipe 9. Figure 4 As shown, this structure is used for connecting external devices to the side passage pipe 9 through the first connecting hole 2 via the side passage pipe 9.

[0023] Furthermore, a connecting cable 10 is connected to the bottom of the third connecting block 609, and a connector 11 is connected to the other end of the connecting cable 10. The connector 11 corresponds to the outlet sleeve plug 3. Figure 4 As shown, this structure is used to connect to the outlet sleeve plug 3 via the connecting cable 10 and the connector 11, so that external devices can be connected from the outlet sleeve plug 3.

[0024] Furthermore, an optical lens 13 is fixedly connected to the surface of the air chamber 1, the optical lens 13 corresponding to the position of the disconnect component 6, and a supplementary light 14 is installed on the surface of the air chamber 1 above the optical lens 13. Figure 5 As shown, this structure is used to facilitate observation of the usage status of the disconnection assembly 6 inside the gas box 1 from the outside through the optical lens 13.

[0025] Furthermore, a baffle 12, made of a polymer material, is installed inside the second connecting hole 4. Figure 4 As shown, this structure is used to prevent excessive internal pressure or leakage by passing through the baffle 12, and the second connecting hole 4 of the baffle 12 is installed on the other side.

[0026] Furthermore, a connecting tube 15 is connected to the outside of the connector 11, and the other end of the connecting tube 15 is connected to the outlet sleeve plug 3. For example... Figure 3 and Figure 5 As shown, this structure is used to improve the stability of the connection between the outlet sleeve plug 3 and the connector 11 through the connecting tube 15.

[0027] Furthermore, vacuum tube 503 is ceramic, connector 8 is copper, and the unconnected parts are wrapped with tape. For example... Figure 4 As shown, this structure is used to improve the connection effect by utilizing the material characteristics of the vacuum tube 503 and the connecting end 8.

[0028] Furthermore, the entire air box 1 is made of stainless steel. For example... Figure 1 As shown, this structure is used to improve the overall robustness of the device by utilizing the material properties of the air box 1.

[0029] Working principle: When using, such as Figure 1 As shown, after the equipment is installed and the internal wiring is connected to the corresponding interfaces, start the device. Figure 5 and Figure 7As shown, the start-up drive device 701 drives the first connecting plate 702 to rotate. The rotation of the first connecting plate 702 pulls the second connecting plate 703 and the fourth connecting plate 707, causing the third connecting plate 706 to swing, disengaging from the connecting frame 709 and breaking the connection with the magnetic levitation 708. Figure 6 As shown, the rotation of the shaft 605 drives the first connecting block 606 to pull the second connecting block 607, causing the movable sleeve 602 to move along the connecting rod 601, thereby disconnecting the first busbar 504 and the second busbar 608. During this time, the internal condition of the air box 1 can be observed from the outside through the optical lens 13. The above is the complete working principle of this utility model.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An insulated ring main unit structure for a drawer-type circuit breaker unit, comprising a gas box (1), characterized in that: The air box (1) has first connecting holes (2) on both sides, a cable outlet plug (3) is installed on the lower side of the air box (1), a second connecting hole (4) is opened at the bottom of the air box (1), a core component (5) is provided inside the air box (1), a disconnect component (6) is provided at the bottom of the core component (5), and a linkage component (7) is provided on the outside of the core component (5). The core component (5) includes a mounting bracket (501), a safety anchor (502), a vacuum tube (503), and a first busbar (504). Two sets of mounting brackets (501) are installed inside the gas box (1). Safety anchors (502) are connected to the four corners of the two sets of mounting brackets (501). A vacuum tube (503) is installed at the center of the mounting bracket (501). The first busbar (504) is connected to the outside of the mounting bracket (501).

2. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 1, characterized in that: The disconnecting assembly (6) includes a connecting rod (601), a movable sleeve (602), a first bolt (603), a second bolt (604), a rotating shaft (605), a first connecting block (606), a second connecting block (607), a second busbar (608), and a third connecting block (609). The connecting rod (601) is connected to the bottom of the fixing frame (501). The movable sleeve (602) is movably connected to the outside of the connecting rod (601). The top of the connecting rod (601) is connected to the bottom of the fixing frame (501) by the first bolt (603). The bottom of (601) is connected to a third connecting block (609) by a second bolt (604). A rotating shaft (605) is rotatably installed inside the air box (1). A first connecting block (606) is installed on the outer surface of the rotating shaft (605). A second connecting block (607) is connected to the end of the first connecting block (606). The other end of the second connecting block (607) is connected to the outer surface of the movable sleeve (602). A second busbar (608) is installed on the inner wall of the air box (1). The outer side of the second busbar (608) is connected to the third connecting block (609).

3. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 1, characterized in that: The linkage component (7) includes a drive device (701), a first connecting plate (702), a second connecting plate (703), a support frame (704), a fixing rod (705), a third connecting plate (706), a fourth connecting plate (707), a magnetic levitation device (708), and a connecting frame (709). The support frame (704) is fixedly installed on the outer surface of the air box (1). The drive device (701) is installed on the top inner side of the air box (1). The output end of the drive device (701) is fixedly connected to the first connecting plate (702). The other end of the support frame (702) is rotatably connected to a second connecting plate (703), and the end of the second connecting plate (703) is rotatably connected to a fourth connecting plate (707). A fixing rod (705) is installed inside the support frame (704), and two sets of third connecting plates (706) are connected to the outer surface of the fixing rod (705). The end of the third connecting plate (706) is connected to the fourth connecting plate (707). A magnetic levitation (708) is installed inside the support frame (704), and the output end of the magnetic levitation (708) is connected to a connecting frame (709).

4. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 1, characterized in that: The top two sides of the vacuum tube (503) are connected to connecting ends (8), the outer side of the connecting end (8) corresponds to the first connecting hole (2), and the inner side of the first connecting hole (2) is equipped with a side passage pipe (9).

5. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 2, characterized in that: The bottom of the third connecting block (609) is connected to a connecting cable (10), and the other end of the connecting cable (10) is connected to a connector (11), which corresponds to the outlet sleeve plug (3).

6. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 1, characterized in that: An optical lens (13) is fixedly connected to the surface of the air box (1). The optical lens (13) corresponds to the position of the disconnect component (6). A supplementary light (14) is installed on the surface of the air box (1) above the optical lens (13).

7. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 1, characterized in that: A baffle (12) is installed inside the second connecting hole (4), and the baffle (12) is made of polymer material.

8. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 5, characterized in that: The connector (11) is connected to a connecting tube (15) on its outer side, and the other end of the connecting tube (15) is connected to the outlet sleeve plug (3).

9. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 4, characterized in that: The vacuum tube (503) is made of ceramic, the connecting end (8) is made of copper, and the unconnected part is wrapped with tape.

10. The insulating ring main unit structure of a drawer-type circuit breaker unit according to claim 1, characterized in that: The air box (1) is made entirely of stainless steel.

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