Integrated indoor high-voltage vacuum circuit breaker

Abstract

The utility model belongs to the technical field of vacuum circuit breakers, and relates to an integrated indoor high-voltage vacuum circuit breaker, which comprises a metal underframe, an isolating switch, a grounding switch, a through-wall type solid-sealed polar pole, a vacuum arc-extinguishing chamber and an operating mechanism, and is characterized in that the isolating switch, the grounding switch, the through-wall type solid-sealed polar pole and the vacuum arc-extinguishing chamber are all mounted on the metal underframe; the isolating switch and the vacuum arc-extinguishing chamber are respectively arranged on two sides of the metal underframe and are electrically connected through a through-wall solid-sealed polar pole 11; and the operating mechanism is integrated with a five-prevention interlocking mechanism and is integrally arranged in the metal chassis, and corresponding linkage shafts in the operating mechanism are used for respectively controlling the opening and closing of the vacuum arc-extinguishing chamber, the isolating switch and the grounding switch in a transmission manner. The integrated structure is provided with the isolation station, the circuit breaker station and the grounding switch station, the operation is simple and convenient, the operation is safe and reliable, the whole body is more integrated, complete-set, miniaturized and safe, and the installation is simple, rapid and convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vacuum circuit breaker technical field relates to a integrated indoor high voltage vacuum circuit breaker. BACKGROUND

[0002] Vacuum circuit breaker is very extensive in the application of power system, mainly used in the circuit is disconnected or on the current, to protect the power equipment and provide the safe operation of power system. And applied in traditional fixed high voltage switch cabinet, need to install vacuum circuit breaker, disconnecting switch, grounding switch respectively alone, installation debugging mechanical interlocking, process is complex, consumes many working hours, high technical requirements for artificial. At the same time, some integrated switch on the market, disconnecting switch and grounding switch are integrated, there is no independent separation, also easy to cause operation accident. SUMMARY

[0003] In order to solve the above technical problems existing in the prior art, the utility model provides an integrated indoor high voltage vacuum circuit breaker, and the specific technical scheme is as follows:

[0004] An integrated indoor high voltage vacuum circuit breaker, comprising a metal chassis, a disconnecting switch, a grounding switch, a through-wall type fixed pole, a vacuum arc chamber and an operating mechanism, the disconnecting switch, the grounding switch, the through-wall type fixed pole and the vacuum arc chamber are all installed on the metal chassis, and the disconnecting switch and the vacuum arc chamber are arranged on the two sides of the metal chassis respectively and are electrically connected through the through-wall type fixed pole; the operating mechanism is integrally installed in the metal chassis and drives the vacuum arc chamber, the disconnecting switch and the grounding switch to open and close through corresponding linkage shafts.

[0005] Further, the operating mechanism integrates a five-prevention interlocking mechanism.

[0006] Further, the operating mechanism comprises an operating panel, an energy storage spring, a linkage main shaft and a linkage secondary shaft, a grounding switch operating shaft and a disconnecting switch operating shaft are connected at the operating panel, an energy storage indication mark, a circuit breaker energy storage operating hole, a circuit breaker opening operating hole and a circuit breaker closing operating hole are arranged on the operating panel, the energy storage spring is correspondingly arranged with the energy storage indication mark and the circuit breaker energy storage operating hole, the linkage main shaft is correspondingly arranged with the circuit breaker opening operating hole and the circuit breaker closing operating hole, the linkage secondary shaft is correspondingly arranged with the grounding switch operating shaft, and the disconnecting switch operating shaft is connected to the disconnecting switch.

[0007] Further, a circuit breaker insulation pull rod is arranged on the metal chassis, a hinged rotating part is arranged at one end of the circuit breaker insulation pull rod and connected to the movable contact rod end of the vacuum arc chamber, the other end of the circuit breaker insulation pull rod is connected to the linkage main shaft and rotates to control the swing of the circuit breaker insulation pull rod, so that the hinged rotating part at one end of the circuit breaker insulation pull rod rotates the movable contact rod end, and the circuit breaker is opened or closed.

[0008] Further, the grounding switch comprises an outgoing line busbar lapping surface, a grounding switch static contact, a support insulating part, a grounding switch dynamic contact and a grounding switch insulating pull rod, the support insulating part is located at the side of the static end conductive block of the vacuum arc-extinguishing chamber and is fixedly connected with the static end conductive block through the outgoing line busbar lapping surface, the grounding switch static contact is fixedly arranged at the bottom of the outgoing line busbar lapping surface, one end of the grounding switch dynamic contact is rotatably controlled to swing by the grounding switch operating shaft through a linkage auxiliary shaft, and the other end is connected with the grounding switch static contact.

[0009] Further, the grounding switch operating shaft controls the linkage auxiliary shaft through a connecting rod, and one end of the grounding switch dynamic contact is fixedly connected to the linkage auxiliary shaft.

[0010] Further, the disconnecting switch comprises a high-voltage sensor, an incoming line busbar lapping surface, a disconnecting switch static contact, a disconnecting switch insulating pull rod, a disconnecting switch dynamic contact and a disconnecting switch support insulating part, the high-voltage sensor and the disconnecting switch support insulating part are installed on the metal base in a one-to-one correspondence, the incoming line busbar lapping surface and the disconnecting switch static contact are arranged at the front end of the high-voltage sensor, one end of the disconnecting switch insulating pull rod is rotatably controlled to swing by the disconnecting switch operating shaft, and the other end is fixedly connected with the rod body of the disconnecting switch dynamic contact, one end of the disconnecting switch dynamic contact is rotatably connected with the front end of the disconnecting switch support insulating part, and the other end is connected with the disconnecting switch static contact in an opening and closing mode through the control of the disconnecting switch insulating pull rod.

[0011] Further, the opening distance of the disconnecting switch is greater than 360mm.

[0012] In the integrated structure, the isolating station, the circuit breaker station and the grounding switch station are provided, the disconnecting switch, the vacuum arc-extinguishing chamber and the grounding switch are respectively provided with independent operating shafts or holes, the isolation and breaking points are obvious, the operation is simple and convenient, safe and reliable, the whole is more integrated, complete and miniaturized, and is simple, fast and convenient to install. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic view of an integrated indoor high-voltage vacuum circuit breaker according to the embodiment;

[0014] Figure 2 is Figure 1 a front view of

[0015] Figure 3 is Figure 1 a right view of

[0016] In the diagram, 1-operating mechanism, 2-energy storage spring, 3-linkage main shaft, 4-grounding switch operating shaft, 5-disconnecting switch operating shaft, 6-energy storage indicator, 7-circuit breaker energy storage operating hole, 8-circuit breaker tripping operating hole, 9-circuit breaker closing operating hole, 10-operating panel, 11-through-wall solid-sealed pole, 12-circuit breaker insulating pull rod, 13-vacuum interrupter, 14-interrupter insulating pull rod, 15-outgoing busbar contact surface, 16-grounding switch stationary contact, 17-supporting insulating component, 18-grounding switch moving contact, 19-grounding switch insulating pull rod, 20-high voltage sensor, 21-incoming busbar contact surface, 22-disconnecting switch stationary contact, 23-disconnecting switch insulating pull rod, 24-disconnecting switch moving contact, 25-disconnecting switch supporting insulating component. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0018] like Figures 1 to 3 As shown, this embodiment discloses an integrated indoor high-voltage vacuum circuit breaker, including a metal base frame, a disconnecting switch, a grounding switch, a through-wall sealed pole 11, a vacuum interrupter 13, and an operating mechanism 1. The disconnecting switch, grounding switch, through-wall sealed pole 11, and vacuum interrupter 13 are all mounted on the metal base frame, and the disconnecting switch and vacuum interrupter 13 are respectively arranged on the left and right sides of the metal base frame and electrically connected to each other through the through-wall sealed pole 11, or they can be arranged in an upper and lower structure. The operating mechanism 1 integrates a five-proof interlocking mechanism and is integrally installed in the metal base frame, forming a side-mounted structure, which has both manual and electric operation modes, and is used to safely control the operation of each switch of the vacuum circuit breaker.

[0019] The operating mechanism 1 specifically includes an operating panel 10, an energy storage spring 2, a linkage main shaft 3, and a linkage secondary shaft. A grounding switch operating shaft 4 and a disconnecting switch operating shaft 5 are connected and installed at the operating panel 10. An energy storage indicator 6, a circuit breaker energy storage operating hole 7, a circuit breaker tripping operating hole 8, and a circuit breaker closing operating hole 9 are provided on the operating panel 10. The energy storage spring 2 is configured correspondingly to the energy storage indicator 6 and the circuit breaker energy storage operating hole 7. The linkage main shaft is configured correspondingly to the circuit breaker tripping operating hole 8 and the circuit breaker closing operating hole 9. The linkage secondary shaft is configured correspondingly to the grounding switch operating shaft 4. The disconnecting switch operating shaft 5 is configured and connected to the disconnecting switch, and each performs corresponding control.

[0020] The circuit breaker insulating tie rod 12 and the arc-extinguishing chamber insulating tie rod 14 are also installed on the metal base frame.

[0021] After the arc-extinguishing chamber insulation pull rod 14 is installed in correspondence with the arc-extinguishing chamber 13, a hinged rotating part is arranged between the moving contact rod end of the vacuum arc-extinguishing chamber 13 and one end of the circuit breaker insulation pull rod 12, and the other end of the circuit breaker insulation pull rod 12 is connected with the linkage main shaft 3 and is rotated and controlled by the linkage main shaft 3 to swing, so that the hinged rotating part connected with the one end rotates the moving contact rod end, and the opening and closing operations of the circuit breaker are realized.

[0022] The grounding switch comprises an outgoing end busbar lapping surface 15, a grounding switch static contact 16, a support insulation part 17, a grounding switch moving contact 18 and a grounding switch insulation pull rod 19.

[0023] The support insulation part 17 is located in correspondence with the static end conducting block side of the vacuum arc-extinguishing chamber 13 and is fixedly connected with the static end conducting block through the outgoing end busbar lapping surface 15, and the grounding switch static contact 16 is fixedly arranged at the bottom of the outgoing end busbar lapping surface 15.

[0024] One end of the grounding switch moving contact 18 is rotated and controlled by the grounding switch operating shaft 4 to swing, and the other end is connected with the grounding switch static contact 16 to open and close. Specifically, the grounding switch operating shaft 4 is connected with the linkage sub-shaft through a connecting rod, and one end of the grounding switch moving contact 18 is fixedly connected with the linkage sub-shaft and is driven and controlled by the linkage sub-shaft. The connection end of the grounding switch insulation pull rod 19 is fixedly connected with the end of the linkage sub-shaft.

[0025] The disconnecting switch comprises a high-voltage sensor 20, an incoming end busbar lapping surface 21, a disconnecting switch static contact 22, a disconnecting switch insulation pull rod 23, a disconnecting switch moving contact 24 and a disconnecting switch support insulation part 25. The high-voltage sensor 20 is installed in correspondence with the disconnecting switch support insulation part 25 on the left side of the metal base frame, the incoming end busbar lapping surface 21 and the disconnecting switch static contact 22 are both arranged at the front end of the high-voltage sensor 20, one end of the disconnecting switch insulation pull rod 23 is rotated and controlled by the disconnecting switch operating shaft 5 to swing, and the other end is fixedly connected with the disconnecting switch moving contact 24, one end of the disconnecting switch moving contact 24 is rotatably connected with the front end of the disconnecting switch support insulation part 25, and the other end is connected with the disconnecting switch static contact 22 to open and close through the control of the disconnecting switch insulation pull rod 23.

[0026] In the disconnecting switch open state of the circuit breaker of the embodiment, the disconnecting switch knife gap opening distance is greater than 360 mm, and the electrical safety is guaranteed to the maximum extent.

[0027] The interlocking mode of the vacuum arc-extinguishing chamber 13, the disconnecting switch and the grounding switch of the circuit breaker of the embodiment is as follows:

[0028] After the circuit breaker is opened, the disconnecting switch can be opened, and after the disconnecting switch is opened, the grounding switch can be closed.

[0029] The grounding switch can be closed only after the disconnector is closed, and the disconnector can be closed only after the circuit breaker is closed;

[0030] The grounding switch can be opened only after the cabinet door is opened;

[0031] The grounding switch can be opened only after the cabinet door is opened.

[0032] The utility model discloses an integrated structure, has the isolation station, circuit breaker station, grounding switch station, disconnecting switch, vacuum arc extinguishing chamber, grounding switch sets up independent operation shaft or hole respectively, has the obvious isolation break, and operation is simple and convenient, safe and reliable, and the whole is more integrated, complete, miniaturization, and simple, fast, convenient installation.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly. In the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the implementation process of the utility model has been described in detail in the foregoing, those skilled in the art can still modify the technical solutions recorded in the foregoing examples, or replace some technical features with equivalent ones. Any modification, equivalent replacement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An integrated indoor high-voltage vacuum circuit breaker comprising a metal base frame, a disconnector, an earthing switch, a through-wall type stationary pole (11), a vacuum arc chamber (13) and an operating mechanism (1), characterized in that, The isolating switch, the grounding switch, the through-wall fixed sealing pole (11) and the vacuum arc-extinguishing chamber (13) are all installed on the metal chassis, and the isolating switch and the vacuum arc-extinguishing chamber (13) are arranged on the two sides of the metal chassis and are electrically connected through the through-wall fixed sealing pole (11); the operating mechanism (1) is integrally installed in the metal chassis and drives and controls the opening and closing of the vacuum arc-extinguishing chamber (13), the isolating switch and the grounding switch through corresponding linkage shafts.

2. The integrated indoor high voltage vacuum circuit breaker according to claim 1, characterized in that, The operating mechanism (1) integrates a five-prevention interlocking mechanism.

3. The integrated indoor high voltage vacuum circuit breaker as claimed in claim 1, wherein, The operating mechanism (1) comprises an operating panel (10), an energy storage spring (2), a linkage main shaft (3) and a linkage secondary shaft, and the grounding switch operating shaft (4) and the isolating switch operating shaft (5) are arranged at the operating panel (10), the energy storage indicating mark (6), the circuit breaker energy storage operating hole (7), the circuit breaker opening operating hole (8), the circuit breaker closing operating hole (9) are arranged on the operating panel (10), the energy storage spring (2) is correspondingly arranged with the energy storage indicating mark (6) and the circuit breaker energy storage operating hole (7), the linkage main shaft (3) is correspondingly arranged with the circuit breaker opening operating hole (8) and the circuit breaker closing operating hole (9), the linkage secondary shaft is correspondingly arranged with the grounding switch operating shaft (4), and the isolating switch operating shaft (5) is connected to the isolating switch.

4. The integrated indoor high voltage vacuum circuit breaker according to claim 3, characterized in that, A circuit breaker insulation pull rod (12) is further arranged on the metal chassis, one end of the circuit breaker insulation pull rod (12) is connected with the movable contact rod end of the vacuum arc-extinguishing chamber (13) and is provided with a hinged rotating part, the other end is connected with the linkage main shaft (3) and is rotated and controlled by the linkage main shaft (3) to swing, so that the hinged rotating part connected with the one end operates the movable contact rod end, and the circuit breaker is opened or closed.

5. The integrated indoor high voltage vacuum circuit breaker as claimed in claim 3, wherein, The grounding switch comprises an outgoing end busbar lap joint surface (15), a grounding switch static contact (16), a supporting insulating part (17), a grounding switch movable contact (18) and a grounding switch insulation pull rod (19), the supporting insulating part (17) is correspondingly arranged at the side of the static end conducting block of the vacuum arc-extinguishing chamber (13) and is fixedly connected with the static end conducting block through the outgoing end busbar lap joint surface (15), the grounding switch static contact (16) is fixedly arranged at the bottom of the outgoing end busbar lap joint surface (15), one end of the grounding switch movable contact (18) is rotated and controlled by the grounding switch operating shaft (4) through the linkage secondary shaft to swing, the other end is connected with the grounding switch static contact (16) to open and close, and the connection end of the grounding switch insulation pull rod (19) is fixedly connected with the end of the linkage secondary shaft.

6. The integrated indoor high voltage vacuum circuit breaker according to claim 5, characterized in that, The grounding switch operating shaft (4) controls the linkage secondary shaft through a connecting rod, and one end of the grounding switch movable contact (18) is fixedly connected with the linkage secondary shaft.

7. The integrated indoor high voltage vacuum circuit breaker as claimed in claim 3, wherein, The isolator comprises a high-voltage sensor (20), a line-in end busbar lapping surface (21), an isolator static contact (22), an isolator insulation pull rod (23), an isolator dynamic contact (24) and an isolator support insulation piece (25), the high-voltage sensor (20) is installed on the metal chassis in correspondence with the isolator support insulation piece (25) up and down, the line-in end busbar lapping surface (21) and the isolator static contact (22) are both arranged to be installed at the front end of the high-voltage sensor (20), one end of the isolator insulation pull rod (23) is rotatably controlled to swing by the isolator operating shaft (5), the other end is fixedly connected with the rod body of the isolator dynamic contact (24), one end of the isolator dynamic contact (24) is rotatably connected with the front end of the isolator support insulation piece (25), the other end is connected with the isolator static contact (22) in opening and closing connection through the control of the isolator insulation pull rod (23).

8. The integrated indoor high voltage vacuum circuit breaker as claimed in claim 1, wherein, The opening distance of the isolator switch is greater than 360 mm.

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