Combination switch device for high-voltage GIS and high-voltage GIS equipment

Abstract

The utility model discloses a combined switch device for a high-voltage GIS and high-voltage GIS equipment, which are applied to the technical field of high-voltage switches and are used for solving the problem of complex structure of a driving mechanism of a double-break isolating switch in the prior art. The device specifically comprises a switch assembly of a double-fracture isolation switch and a switch assembly of a grounding switch which are arranged in a tank body assembly. A switch assembly of a grounding switch is connected between two ports of the switch assembly of the double-break disconnecting switch, and a driving mechanism of the double-break disconnecting switch is connected with a transmission assembly in the switch assembly of the double-break disconnecting switch; the driving mechanism of the double-fracture isolation switch is used for driving the transmission assembly to move so as to drive the two fractures of the switch assembly of the double-fracture isolation switch to be opened or closed at the same time. Therefore, by arranging a set of switch assembly capable of driving the two fractures of the double-fracture isolation switch to be opened or closed at the same time, the number of parts is reduced, and the structure of the double-fracture isolation switch is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage switches, in particular to a combined switch device for high-voltage GIS and a high-voltage GIS device. Background Art

[0002] High-voltage GIS (Gas Insulated metal-enclosed Switchgear) is a metal-enclosed switchgear that uses gas as the insulating medium in whole or in part. The high-voltage GIS combines high-voltage electrical appliances such as circuit breakers, disconnectors, earthing switches, instrument transformers, and lightning arresters into a high-voltage power distribution device, which is encapsulated in a grounded metal shell filled with SF6 gas at a certain pressure to achieve insulation against the ground. High-voltage GIS is widely used in urban power grids, high-speed railways, airports and other places.

[0003] At present, the disconnector in high-voltage GIS is a double-break disconnector, which often requires two sets of driving mechanisms to drive respectively, resulting in a complex structure of high-voltage GIS and bringing difficulties to the installation and maintenance of equipment. Summary of the Utility Model

[0004] The embodiment of the utility model provides a combined switch device for high-voltage GIS and a high-voltage GIS device to solve the problem of the complex driving mechanism structure of the double-break disconnector in the prior art.

[0005] The technical solution provided by the embodiment of the utility model is as follows:

[0006] On the one hand, the embodiment of the utility model provides a combined switch device for high-voltage GIS, including: a switch assembly of the double-break disconnector, a switch assembly of the earthing switch, a driving mechanism of the double-break disconnector, and a tank assembly;

[0007] The switch assembly of the double-break disconnector and the switch assembly of the earthing switch are arranged inside the tank assembly;

[0008] The switch assembly of the earthing switch is connected between the two ports of the switch assembly of the double-break disconnector, and the driving mechanism of the double-break disconnector is connected to the transmission assembly in the switch assembly of the double-break disconnector;

[0009] The driving mechanism of the double-break disconnector is used to drive the two breaks of the switch assembly of the double-break disconnector to open or close simultaneously by driving the transmission assembly to move.

[0010] In a possible implementation manner, the tank assembly includes: a first tank and a second tank;

[0011] The switch assembly of the double-break disconnecting switch is arranged inside the first tank body, and the switch assembly of the earthing switch is arranged inside the second tank body.

[0012] In a possible implementation manner, the switch assembly of the double-break disconnecting switch includes: a driving assembly, a moving contact seat assembly, and a static contact seat assembly; the driving assembly includes a transmission shaft and an insulating rod;

[0013] One end of the transmission shaft is in transmission connection with the driving mechanism of the double-break disconnecting switch located outside the first tank body, and the other end of the transmission shaft is in transmission connection with the insulating rod inside the first tank body; one end of the insulating rod is fixedly installed at the end of the transmission shaft and realizes torque transmission with the transmission shaft, and the other end of the insulating rod is connected to the moving contact seat assembly and drives the two moving contacts of the moving contact seat assembly to move;

[0014] The static contact seat assemblies are respectively arranged on both sides of the first tank body;

[0015] The moving contact seat assembly is fixedly arranged inside the first tank body, and the two moving contacts of the moving contact seat assembly are arranged opposite to the corresponding static contact seat assembly on one side.

[0016] In a possible implementation manner, the moving contact seat assembly includes: a first moving contact, a second moving contact, a first pipe seat, a first rack, a second rack, a gear, a first electrical connector, a second electrical connector, a first guide sleeve, and a second guide sleeve;

[0017] A horizontal pipeline is arranged inside the first pipe seat, and the first moving contact and the second moving contact with opposite moving directions are arranged inside the horizontal pipeline of the first pipe seat; the first moving contact is fixedly connected to the first rack; the second moving contact is fixedly connected to the second rack; the gear is respectively meshed with the first rack and the second rack at the same time, the gear is fixed in the first horizontal pipeline through a bearing, and the gear is driven to rotate by the insulating rod; a first electrical connector and a first guide sleeve are arranged between the first moving contact and the first pipe seat; a second electrical connector and a second guide sleeve are arranged between the second moving contact and the first pipe seat.

[0018] In a possible implementation manner, the moving contact seat assembly further includes: a first guide member and a second guide member;

[0019] The inner wall of the first pipe seat in the horizontal direction is a curved inner wall; the first guide member is fixedly arranged at the tail end of the first rack, the second guide member is fixedly arranged at the tail end of the second rack, and both the first guide member and the second guide member slide in the horizontal direction on the curved inner wall of the first pipe seat.

[0020] In a possible implementation manner, both the first guide member and the second guide member are spherical guide members.

[0021] In a possible implementation manner, the moving contact seat assembly further includes: an insulating member and a fixing member;

[0022] The bottom of the first socket is fixedly connected to the tank body through an insulating member and a fixing member.

[0023] In a possible implementation manner, the static contact socket member includes: a first static contact elastic conductive member, a first conductor element, a first contact insert, a first insulator, a second static contact elastic conductive member, a second conductor element, a second contact insert, and a second insulator;

[0024] The first insulator and the second insulator respectively penetrate through the first tank body and are arranged oppositely; the first contact insert is embedded in the first insulator, and the second contact insert is embedded in the second insulator;

[0025] The first static contact elastic conductive member is fixedly connected to the first insulator through the first conductor element; the first static contact elastic conductive member is arranged oppositely to the first moving contact, and the first static contact is connected to the first moving contact when the first moving contact extends out;

[0026] The second static contact elastic conductive member is fixedly connected to the second insulator through the second conductor element; the second static contact elastic conductive member is arranged oppositely to the second moving contact, and the second static contact is connected to the second moving contact when the second moving contact extends out.

[0027] In a possible implementation manner, the combined switch device for high-voltage GIS further includes: a mechanical interlock device;

[0028] One end of the mechanical interlock device is connected to the transmission component in the switch component of the double-break disconnector, and one end of the mechanical interlock device is connected to the switch component of the earthing switch; the mechanical interlock device is used to limit the operation of the operating mechanism in the earthing switch when the double-break disconnector is in the closed state; and to limit the operation of the driving mechanism of the double-break disconnector when the earthing switch is in the closed state.

[0029] On the other hand, the embodiment of the present invention provides a high-voltage GIS device, including: at least one combined switch device for high-voltage GIS provided by the embodiment of the present application; each combined switch device for high-voltage GIS is connected to a corresponding busbar.

[0030] The beneficial effects of the embodiment of the present invention are as follows:

[0031] In the embodiment of the present invention, by arranging a driving mechanism of a set of double-break disconnectors to drive the transmission component to move, it is possible to realize the simultaneous opening or closing of the two breaks of the switch component of the double-break disconnector, reduce the number of parts, simplify the structure of the driving mechanism of the double-break disconnector, and facilitate the installation and maintenance of the high-voltage GIS using this combined switch device.

[0032] Other features and advantages of the present utility model will be described in the subsequent specification. Moreover, some of them will be apparent from the specification or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures specifically pointed out in the written specification, claims, and drawings. Brief Description of the Drawings

[0033] The drawings described herein are used to provide a further understanding of the present utility model and form a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0034] Figure 1 is a three-dimensional structural schematic diagram of the combined switch device for high-voltage GIS in an embodiment of the present utility model;

[0035] Figure 2 is an internal three-dimensional structural schematic diagram of the combined switch device for high-voltage GIS in an embodiment of the present utility model;

[0036] Figure 3 is a three-dimensional structural schematic diagram of the moving contact seat assembly in an embodiment of the present utility model;

[0037] Figure 4 is a sectional structural schematic diagram of the combined switch device for high-voltage GIS in an embodiment of the present utility model.

[0038] In the icons, 1 - switch assembly of the double-break disconnecting switch; 2 - switch assembly of the earthing switch; 3 - driving mechanism of the double-break disconnecting switch; 4 - tank assembly; 41 - first tank; 42 - second tank; 5 - moving contact seat assembly; 51 - first moving contact; 52 - second moving contact; 53 - first pipe seat; 54 - first rack; 55 - second rack; 56 - gear; 57 - first electrical connector; 571 - second electrical connector; 58 - first guide sleeve; 581 - second guide sleeve; 582 - first guide member; 583 - second guide member; 59 - insulating member; 591 - block; 592 - fixing plate; 593 - end cover; 6 - static contact seat assembly; 61 - first static contact elastic conductive member; 62 - first conductor element; 63 - first contact insert; 64 - first insulator; 65 - second static contact elastic conductive member; 66 - second conductor element; 67 - second contact insert; 68 - second insulator; 7 - transmission shaft; 71 - insulating rod; 8 - mechanical interlock device; 9 - input shaft; 10 - moving contact assembly; 11 - crank arm; 12 - connecting plate; 13 - torsion shaft. Detailed Embodiments

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0040] An embodiment of the present utility model provides a combined switch device for high-voltage GIS. Refer to Figure 1 and Figure 2 As shown, the combined switch device for high-voltage GIS at least includes: a switch assembly 1 of a double-break disconnecting switch, a switch assembly 2 of an earthing switch, a driving mechanism 3 of the double-break disconnecting switch, and a tank assembly 4.

[0041] The switch assembly 1 of the double-break disconnecting switch and the switch assembly 2 of the earthing switch are arranged inside the tank assembly 4.

[0042] The switch assembly 2 of the earthing switch is connected between the two ports of the switch assembly 1 of the double-break disconnecting switch, and the driving mechanism 3 of the double-break disconnecting switch is connected to the transmission assembly in the switch assembly 1 of the double-break disconnecting switch.

[0043] The driving mechanism 3 of the double-break disconnecting switch is used to drive the two breaks of the switch assembly 1 of the double-break disconnecting switch to open or close simultaneously by driving the transmission assembly to move.

[0044] In Figure 1 and Figure 2 In the combined switch device of the high-voltage GIS shown, the combined switch device arranges the switch assembly 2 of the double-break disconnecting switch and the earthing switch in the tank assembly 4. Among them, the tank assembly 4 is filled with SF6 gas. The driving mechanism 3 of the double-break disconnecting switch can provide torque to drive the transmission mechanism in the double-break disconnecting switch, so that the transmission mechanism moves and drives the two breaks of the double-break disconnecting switch to act simultaneously. Among them, the driving mechanism 3 of the double-break disconnecting switch can provide torque in a first direction to drive the transmission mechanism in the double-break disconnecting switch, and the transmission mechanism moves and drives the two breaks of the double-break disconnecting switch to close simultaneously; the driving mechanism 3 of the double-break disconnecting switch can provide torque in a second direction to drive the transmission mechanism in the double-break disconnecting switch, and the transmission mechanism moves and drives the two breaks of the double-break disconnecting switch to close simultaneously. The first direction and the second direction are two opposite directions. The first direction can be the clockwise direction, and the second direction can be the counterclockwise direction.

[0045] In this way, by setting a driving mechanism of a double-break disconnecting switch to drive the transmission component to move, it is possible to realize the simultaneous opening or closing of the two breaks of the switch component of the double-break disconnecting switch, reduce the number of parts, simplify the structure of the driving mechanism of the double-break disconnecting switch, facilitate the installation of the high-voltage GIS using this combined switch device, and facilitate the live expansion, maintenance and testing of the high-voltage GIS equipment.

[0046] In specific implementation, in the combined switch device of the high-voltage GIS, the tank assembly 4 has various structures to realize its functions. Refer to Figure 1 and Figure 2 As shown, the tank assembly 4 includes: a first tank 41 and a second tank 42;

[0047] The switch component 1 of the double-break disconnecting switch is arranged inside the first tank 41, and the switch component 2 of the earthing switch is arranged inside the second tank 42.

[0048] In Figure 1 and Figure 2 In the combined switch device of the high-voltage GIS shown, the first tank 41 and the second tank 42 are tightly connected by bolts or clamps for stabilization. In order to improve the sealing performance, a gasket is often added at the connection, effectively preventing the leakage of SF6 gas inside the tank.

[0049] In specific implementation, in the switch component 1 of the double-break disconnecting switch, the transmission component has various structures to realize its functions. Refer to Figure 2 As shown, the switch component 1 of the double-break disconnecting switch includes: a transmission component, a moving contact seat component 5, and a static contact seat component 6; the transmission component includes a transmission shaft 7 and an insulating rod 71;

[0050] One end of the transmission shaft 7 is in transmission connection with the driving mechanism 3 of the double-break disconnecting switch located outside the first tank 41, and the other end of the transmission shaft 7 is in transmission connection with the insulating rod 71 inside the first tank 41; one end of the insulating rod 71 is fixedly installed at the end of the transmission shaft 7 and realizes torque transmission with the transmission shaft 7, and the other end of the insulating rod 71 is connected to the moving contact seat component 5 and drives the two moving contacts of the moving contact seat component 5 to move.

[0051] The static contact seat component 6 is respectively arranged on both sides of the first tank 41;

[0052] The moving contact seat component 5 is fixedly arranged inside the first tank 41, and the two moving contacts of the moving contact seat component 5 are arranged opposite to the corresponding static contact seat component 6 on one side.

[0053] In Figure 2In the combined switchgear of the high-voltage GIS shown, the driving mechanism 3 of the double-break disconnecting switch can perform clockwise and counterclockwise operations to drive the drive shaft 7 and the insulating rod 71 connected to the drive shaft 7 to rotate clockwise and counterclockwise. The drive shaft 7 is mainly used to transmit the torque provided by the driving mechanism, and the insulating rod 71 can play an insulating role while transmitting the torque to the moving contact seat assembly 5. Under the action of the torque transmitted by the insulating rod 71, the moving contact seat assembly 5 controls the two moving contacts of the moving contact seat assembly 5 to move simultaneously towards the direction of the static contact seat assembly 6 or away from the direction of the static contact seat assembly 6.

[0054] In specific implementation, the moving contact seat assembly 5 in the combined switchgear of the high-voltage GIS has various structures to achieve its functions. Refer to Figure 3 As shown, the moving contact seat assembly 5 includes: a first moving contact 51, a second moving contact 52, a first pipe seat 53, a first rack 54, a second rack 55, a gear 56, a first electrical connector 57, a second electrical connector 571, a first guide sleeve 58 and a second guide sleeve 581;

[0055] A horizontal pipeline is arranged inside the first pipe seat 53, and the first moving contact 51 and the second moving contact 52 with opposite moving directions are arranged inside the horizontal pipeline of the first pipe seat 53; the first moving contact 51 is fixedly connected to the first rack 54; the second moving contact 52 is fixedly connected to the second rack 55; the gear 56 is respectively and simultaneously meshed with the first rack 54 and the second rack 55, the gear 56 is fixed in the first horizontal pipeline by a bearing, and the gear 56 is driven to rotate by the insulating rod 71; a first electrical connector 57 and a first guide sleeve 58 are arranged between the first moving contact 51 and the first pipe seat 53; a second electrical connector 571 and a second guide sleeve 581 are arranged between the second moving contact 52 and the first pipe seat 53.

[0056] In Figure 3In the combined switch device of the high-voltage GIS shown, a horizontal pipeline is arranged inside the first pipe seat 53. The gear 56 can be fixed in the middle of the horizontal pipeline through bearings. The two sides of the gear 56 are respectively engaged with the first rack 54 and the second rack 55. The first rack 54 is connected to the tail of the first moving contact 51, and the second rack 55 is connected to the tail of the second moving contact 52. Here, the tail refers to the non-extending end of the moving contact. When the gear 56 is driven by the insulating rod 71 to rotate clockwise, the gear 56 drives the first moving contact 51 to move leftward through the first rack 54, and the gear 56 drives the second moving contact 52 to move rightward through the second rack 55. When the gear 56 is driven by the insulating rod 71 to rotate counterclockwise, the gear 56 drives the first moving contact 51 to move rightward through the first rack 54, and the gear 56 drives the second moving contact 52 to move leftward through the second rack 55. A first electrical connector 57 and a first guide sleeve 58 are arranged between the first moving contact 51 and the first pipe seat 53; a second electrical connector 571 and a second guide sleeve 581 are arranged between the second moving contact 52 and the first pipe seat 53. When the gear 56 is driven by the insulating rod 71 to rotate clockwise to a preset angle, the gear 56 drives the first moving contact 51 to move leftward to the closing position through the first rack 54, and the gear 56 drives the second moving contact 52 to move rightward to the closing position through the second rack 55. At this time, the first electrical connector 57 arranged between the first moving contact 51 and the first pipe seat 53 is electrically connected to the corresponding static contact seat assembly 6, and the second electrical connector 571 arranged between the second moving contact 52 and the first pipe seat 53 is electrically connected to the corresponding static contact seat assembly 6, realizing the simultaneous closing of the two breaks of the double-break disconnecting switch. After the two breaks of the double-break disconnecting switch are simultaneously closed, the gear 56 is driven by the insulating rod 71 to rotate counterclockwise. At this time, the electrical connection between the first electrical connector 57 and the corresponding static contact seat assembly 6 is disconnected, and the electrical connection between the second electrical connector 571 and the corresponding static contact seat assembly 6 is disconnected. As the insulating rod 71 drives the gear 56 to further rotate counterclockwise, the gear 56 drives the first moving contact 51 to move rightward to the opening position through the first rack 54, and the gear 56 drives the second moving contact 52 to move leftward to the opening position through the second rack 55. The first guide sleeve 58 and the second guide sleeve 581 are respectively used to guide the first moving contact 51 and the second moving contact 52 to move in the horizontal direction, ensuring that the movement trajectories of the first moving contact 51 and the second moving contact 52 do not deviate, and improving the stability and accuracy.

[0057] In a possible implementation manner, referring to Figure 3 as shown, the moving contact seat assembly 5 further includes: a first guide member 582 and a second guide member 583;

[0058] The inner wall of the first socket 53 in the horizontal direction is a curved inner wall; the first guide member 582 is fixedly arranged at the tail end of the first rack 54, and the second guide member 583 is fixedly arranged at the tail end of the second rack 55. Both the first guide member 582 and the second guide member 583 slide horizontally on the curved inner wall of the first socket 53.

[0059] In Figure 3 In the combined switch device of the high-voltage GIS shown, the tail end of the first rack 54 refers to the end far from the end where the first rack 54 is connected to the first moving contact 51; the tail end of the second rack 55 refers to the end far from the end where the second rack 55 is connected to the second moving contact 52. The common setting of the guide member and the guide sleeve can realize the horizontal setting of the moving contact, avoid the inclination of the moving contact to bring resistance and unnecessary friction to its movement, and improve the durability of the device.

[0060] In a possible implementation manner, both the first guide member 582 and the second guide member 583 are spherical guide members. The friction between the spherical guide member and the inner wall of the first socket 53 is rolling friction. Compared with the sliding friction between other shaped guide members and the inner wall of the first socket 53, it can effectively reduce the friction between the guide member and the inner wall of the first socket 53, reduce mechanical noise, and also improve the smoothness of the movement of the moving contact.

[0061] In a possible implementation manner, referring to Figure 3 shown, the moving contact seat assembly 5 further includes: an insulating member 59 and a fixing member;

[0062] The bottom of the first socket 53 is fixedly connected to the tank body through the insulating member 59 and the fixing member.

[0063] In Figure 3 In the combined switch device of the high-voltage GIS shown, the fixing member includes a block 591, a fixing plate 592, and an end cover 593. The bottom of the first socket 53 is sequentially fixed to the end cover 593 through the block 591, the insulating member 59, and the fixing plate 592, and the end cover 593 is fixedly connected to the first tank body.

[0064] In specific implementation, the static contact seat assembly 6 in the combined switch device of the high-voltage GIS has various structures to realize its functions. Referring to Figure 4 shown, the static contact seat assembly 6 includes: a first static contact elastic conductive member 61, a first conductor element 62, a first contact insert 63, a first insulator 64, a second static contact elastic conductive member 65, a second conductor element 66, a second contact insert 67, and a second insulator 68;

[0065] The first insulator 64 and the second insulator 68 respectively penetrate the first tank body 41 and are oppositely arranged; the first contact insert 63 is embedded in the first insulator 64, and the second contact insert 67 is embedded in the second insulator 68;

[0066] The first static contact elastic conductive member 61 is fixedly connected to the first insulator 64 through the first conductor element 62; the first static contact elastic conductive member 61 is disposed opposite to the first moving contact 51, and the first static contact is connected to the first moving contact 51 when the first moving contact 51 extends out.

[0067] The second static contact elastic conductive member 65 is fixedly connected to the second insulator 68 through the second conductor element 66; the second static contact elastic conductive member 65 is disposed opposite to the second moving contact 52, and the second static contact is connected to the second moving contact 52 when the second moving contact 52 extends out.

[0068] In Figure 4 In the combined switch device of the high-voltage GIS shown, the first insulator 64 and the second insulator 68 are pot insulators. The first insulator 64 is embedded with a first contact insert 63, and the first contact insert 63 is electrically connected to the first static contact elastic conductive member 61 through the first conductor element 62; similarly, the second insulator 68 is embedded with a second contact insert 67, and the second contact insert 67 is electrically connected to the second static contact elastic conductive member 65 through the second conductor element 66. When the gear 56 drives the first moving contact 51 to move leftward to the closing position through the first rack 54, and the gear 56 drives the second moving contact 52 to move leftward to the closing position through the second rack 55, the first moving contact 51 is connected to the first static contact elastic conductive member 61, and the second moving contact 52 is connected to the second static contact elastic conductive member 65, and the two breaks of the double-break disconnecting switch are closed simultaneously.

[0069] In a possible implementation, referring to Figure 2 and Figure 4 shown, the switch assembly 2 of the earthing switch includes an input shaft 9, a moving contact assembly 10, a toggle arm 11, a connecting plate 12, and a torsion shaft 13. The input shaft 9 is connected to the torsion shaft 13, and the torsion shaft 13, the toggle arm 11, the connecting plate 12, and the moving contact assembly 10 are connected in sequence. The input shaft 9 receives an external driving force and transmits the torque to the toggle arm 11, the connecting plate 12, and the moving contact assembly 10 through the torsion shaft 13. The toggle arm 11 and the connecting plate 12 are responsible for converting the external driving force received by the input shaft 9 into a linear or rotational movement of the moving contact assembly 10, thereby realizing the opening and closing operations of the switch.

[0070] In a possible implementation, in order to avoid closing the earthing switch while energized, referring to Figure 1 and Figure 2 shown, the combined switch device of the high-voltage GIS further includes: a mechanical interlock device 8;

[0071] One end of the mechanical interlock device 8 is connected to the drive assembly in the switch assembly 1 of the double-break disconnecting switch, and one end of the mechanical interlock device 8 is connected to the switch assembly 2 of the earthing switch; the mechanical interlock device 8 is used to restrict the operation of the operating mechanism in the earthing switch when the double-break disconnecting switch is in the closed state; and to restrict the operation of the drive mechanism 3 of the double-break disconnecting switch when the earthing switch is in the closed state.

[0072] In practical applications, when the double-break disconnecting switch is in the closed state, the mechanical interlock device 8 can prevent the operating handle of the earthing switch from operating the earthing switch through the input shaft in a blocking manner; when the double-break disconnecting switch is in the open state, the operating handle of the earthing switch can operate the earthing switch to close or open through the input shaft; when the earthing switch is in the closed state, it controls that the drive mechanism cannot close the double-break disconnecting switch; when the earthing switch is in the open state, it controls that the drive mechanism can close or open the double-break disconnecting switch.

[0073] Based on the same concept, an embodiment of the present invention further provides a high-voltage GIS device, which includes: at least one combined switch device for high-voltage GIS provided in the embodiment of the present application; each combined switch device for high-voltage GIS is connected to a corresponding busbar.

[0074] In the high-voltage GIS device provided by the embodiment of the present invention, since the combined switch device for high-voltage GIS can simplify the structure of the double-break disconnecting switch, facilitate the installation of the high-voltage GIS using the combined switch device, and facilitate the power-off expansion, maintenance and testing of the high-voltage GIS device, therefore, the high-voltage GIS with the combined switch device for high-voltage GIS also has corresponding advantages, which will not be elaborated here.

[0075] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0076] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these changes and modifications.

Claims

1. A combined switchgear for high-voltage GIS, characterized in that Including: The switch assembly of the double-break disconnecting switch, the switch assembly of the earthing switch, the driving mechanism of the double-break disconnecting switch, and the tank assembly; Inside the tank assembly, there are arranged the switch assembly of the double-break disconnecting switch and the switch assembly of the earthing switch; Between the two ports of the switch assembly of the double-break disconnecting switch, there is connected the switch assembly of the earthing switch, and the driving mechanism of the double-break disconnecting switch is connected with the transmission component in the switch assembly of the double-break disconnecting switch; The driving mechanism of the double-break disconnecting switch is used to drive the two breaks of the switch assembly of the double-break disconnecting switch to open or close simultaneously by driving the movement of the transmission component.

2. The combined switchgear for high-voltage GIS according to claim 1, characterized in that, The tank assembly includes: a first tank and a second tank; Inside the first tank, there is arranged the switch assembly of the double-break disconnecting switch, and inside the second tank, there is arranged the switch assembly of the earthing switch.

3. The combined switchgear for high-voltage GIS according to claim 2, characterized in that, The switch assembly of the double-break disconnecting switch includes: a transmission component, a moving contact seat assembly, and a static contact seat assembly; the transmission component includes a transmission shaft and an insulating rod; One end of the transmission shaft is in transmission connection with the driving mechanism of the double-break disconnecting switch located outside the first tank, and the other end of the transmission shaft is in transmission connection with the insulating rod inside the first tank; one end of the insulating rod is fixedly installed at the end of the transmission shaft and realizes torque transmission with the transmission shaft, and the other end of the insulating rod is connected with the moving contact seat assembly and drives the two moving contacts of the moving contact seat assembly to move; The static contact seat assemblies are respectively arranged on both sides of the first tank; The moving contact seat assembly is fixedly arranged inside the first tank, and the two moving contacts of the moving contact seat assembly are arranged opposite to the corresponding static contact seat assembly on one side.

4. The combined switchgear for high-voltage GIS according to claim 3, characterized in that, The moving contact seat assembly includes: a first moving contact, a second moving contact, a first pipe seat, a first rack, a second rack, a gear, a first electrical connector, a second electrical connector, a first guide sleeve, and a second guide sleeve; Inside the first pipe seat, there is arranged a horizontal pipeline, and inside the horizontal pipeline of the first pipe seat, there are arranged the first moving contact and the second moving contact with opposite movement directions; the first moving contact is fixedly connected with the first rack; the second moving contact is fixedly connected with the second rack; the gear is respectively meshed with the first rack and the second rack at the same time, the gear is fixed in the first horizontal pipeline through a bearing, and the gear is driven to rotate by the insulating rod; between the first moving contact and the first pipe seat, there are arranged a first electrical connector and a first guide sleeve; between the second moving contact and the first pipe seat, there are arranged a second electrical connector and a second guide sleeve.

5. The combined switchgear for high-voltage GIS according to claim 4, characterized in that, The moving contact seat assembly further includes: a first guide member and a second guide member; The inner wall of the first pipe seat in the horizontal direction is a curved inner wall; the first guide member is fixedly arranged at the tail end of the first rack, the second guide member is fixedly arranged at the tail end of the second rack, and both the first guide member and the second guide member slide in the horizontal direction on the curved inner wall of the first pipe seat.

6. The combined switchgear for high-voltage GIS according to claim 5, characterized in that, Both the first guide member and the second guide member are spherical guide members.

7. The combined switchgear for high-voltage GIS according to claim 5, characterized in that, The moving contact seat assembly further includes: an insulating member and a fixing member; The bottom of the first socket is fixedly connected to the tank body through an insulating member and a fixing member.

8. The combined switchgear for high-voltage GIS according to any one of claims 4-7, characterized in that, The static contact socket member includes: a first static contact elastic conductive member, a first conductor element, a first contact insert, a first insulator, a second static contact elastic conductive member, a second conductor element, a second contact insert, and a second insulator; The first insulator and the second insulator respectively penetrate through the first tank body and are arranged oppositely; the first contact insert is embedded in the first insulator, and the second contact insert is embedded in the second insulator; The first static contact elastic conductive member is fixedly connected to the first insulator through the first conductor element; the first static contact elastic conductive member is arranged oppositely to the first moving contact, and the first static contact is connected to the first moving contact when the first moving contact extends out; The second static contact elastic conductive member is fixedly connected to the second insulator through the second conductor element; the second static contact elastic conductive member is arranged oppositely to the second moving contact, and the second static contact is connected to the second moving contact when the second moving contact extends out.

9. The combined switchgear for high-voltage GIS according to claim 8, characterized in that, It further includes: A mechanical interlock device; One end of the mechanical interlock device is connected to the transmission component in the switch component of the double-break disconnecting switch, and one end of the mechanical interlock device is connected to the switch component of the earthing switch; the mechanical interlock device is used to limit the operation of the operating mechanism in the earthing switch when the double-break disconnecting switch is in the closed state; and to limit the operation of the driving mechanism of the double-break disconnecting switch when the earthing switch is in the closed state.

10. A high-voltage GIS device, characterized in that, It includes: At least one combined switch device for high-voltage GIS as described in any one of claims 1-9; each combined switch device for high-voltage GIS is connected to a corresponding bus.

Images