GIS multipurpose combined electric connection structure

Abstract

The invention discloses a GIS multipurpose combined electric connection structure which comprises a conductive base for combination and matching, an insulator connector is arranged on one end side of the conductive base for combination and matching, and a plurality of expansion interfaces are arranged on the peripheral side of the conductive base for combination and matching; the interface seat is detachably connected with any expansion interface, and the interface seat is used for being connected with a conducting rod; the shielding head is detachably connected with any expansion interface, and the shielding head is used for blocking the idle expansion interface under the operation condition; the conductive base for combination and matching comprises a plurality of extension interfaces, a plurality of interface seats and a transition support, the transition support is detachably connected with any extension interface, the transition support is used for transition connection with a cable terminal, and the plurality of extension interfaces of the conductive base for combination and matching are combined and matched through the transition support and / or the interface seats so as to meet the connection use of multiple devices under different working conditions. The device can be directly applied to a 252kV totally-enclosed combined electric appliance, and the assembly quality and the production efficiency can be effectively improved.

Description

Technical Field

[0001] This invention belongs to the technical field of gas-insulated metal-enclosed switchgear connection accessories, specifically relating to a GIS multi-purpose combined electrical connection structure. Background Technology

[0002] With the rapid growth of the national economy, my country's urban power grid construction has been continuously strengthened, making the construction of gas-insulated metal-enclosed switchgear increasingly important. Among these, 252 kV GIS (Gas Insulated Switchgear) accounts for a significant proportion of power grid construction and is widely used in various industries such as power generation, substation, and energy. 252 kV substations are mostly divided into indoor and outdoor substations. Indoor substations, due to their compact design, are better suited to areas with limited land resources, such as urban centers and high-density residential areas, and their construction is increasing. Indoor GIS substations primarily use cable termination structures for connection and transmission. Due to the diversity of substation construction and user needs, the arrangement and combination of electrical components in the cable terminations are also varied.

[0003] Conventionally, different types of connection structures are required for different operating conditions. Each connection structure can only correspond to one operating condition. The structures are not interchangeable and must be set up according to the power plant design requirements.

[0004] Conventional 252 kV GIS cable terminals are connected via ordinary electrical connections. However, due to the diversity of power plant construction and user needs, cable terminals are often equipped with voltage transformers, surge arresters, and other equipment directly connected to the operating conditions. This requires manufacturers to design various electrical connection structures for different purposes according to the requirements, which is not only time-consuming and labor-intensive, but also makes standardized production impossible. It also increases the pressure on component assembly, places higher demands on installation processes, and is not conducive to improving product quality.

[0005] Therefore, how to provide a multi-purpose combined electrical connection structure for GIS is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides a GIS multi-purpose combined electrical connection structure, which adopts a combination of standard base and matching accessories, and can be arranged and combined arbitrarily according to the needs of the power station to achieve the effect of interoperability and greatly improve the docking efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a GIS multi-purpose combined electrical connection structure, comprising: A combined conductive base is provided, with an insulator connector on one end and multiple expansion interfaces on the periphery of the combined conductive base; An interface socket, which can be detachably connected to any of the expansion interfaces, is used to connect a conductive rod; A shielding head, which can be detachably connected to any of the expansion interfaces, is used to block the expansion interfaces that are not in use during operation. A transition support is provided, which can be detachably connected to any of the expansion interfaces. The transition support is used for transitional connection of cable terminals. Multiple expansion interfaces of the combined conductive base are matched through the combination of the transition support and / or interface base to meet the connection of multiple devices under different working conditions.

[0008] The beneficial technical effects of this invention are: by setting a standardized conductive base and combining it with matching interface bases and transition supports to form a corresponding electrical connection structure, it can meet the connection needs under different operating conditions. By blocking excess expansion interfaces with shielding heads, it can also achieve a uniform electric field and ensure conductivity. This product can be directly applied to 252kV fully enclosed combined electrical appliances, which can effectively improve assembly quality and production efficiency.

[0009] Preferably, the conductive base for the assembly is a rectangular base, and the peripheral side of the conductive base for the assembly has multiple accessory mating planes. The expansion interface is a threaded hole and is opened on the accessory mating plane. The interface seat, shielding head, or transition support can all abut against the accessory mating plane.

[0010] The resulting technical effect is that the combined conductive base, by setting multiple accessory mating planes, enables interchangeable connections between different accessories.

[0011] Preferably, the interface seat has a threaded opening for connecting the conductive rod, and a mating surface is provided at the end of the interface seat away from the threaded opening. The mating surface is used to abut against the mating plane of the accessory. The mating surface has a connecting hole that passes through the threaded opening, and the interface seat is connected to the expansion interface by screws.

[0012] The resulting technical effect is that the interface seat is a screw-in seat, used to connect the conductive rod to the relevant equipment.

[0013] Preferably, the shielding head has an abutting surface that abuts against the mating plane of the accessory, and the shielding head has a screw hole that penetrates the abutting surface. The shielding head is connected to the expansion interface by screws.

[0014] The resulting technical effect is that the shielding head is used with a conductive base to seal the remaining expansion interfaces, which can create a uniform electric field and ensure the conductivity of the structure.

[0015] Preferably, the transition support is used for transition connection of cable terminals and combined conductive bases, the transition support is provided with a perforated connecting lug that abuts against the mating plane of the accessory, and the transition support is connected to the expansion interface by screws.

[0016] The resulting technical effect is that the added transition support avoids direct connection between the conductive base and the cable terminal, simplifies the complexity of direct connection, and facilitates subsequent independent disassembly and maintenance.

[0017] Preferably, the combined conductive base and three interface seats form a cross-shaped electrical connection structure, with the three interface seats distributed on three sides of the combined conductive base.

[0018] The resulting technical effect is that it is equivalent to the traditional "+" shaped electrical connection structure, but this case is a combination and matching design, and can also be combined into other electrical connection structures.

[0019] Preferably, the combination uses a conductive base, an interface base, and two shielding heads to form an "L"-shaped electrical connection structure.

[0020] Preferably, the combined conductive base, together with the interface seat, shielding head and transition support, forms a "T"-shaped electrical connection structure, with the interface seat and transition support placed on both sides of the combined conductive base.

[0021] The resulting technical effect is that the present invention can achieve electrical connection structure types that adapt to different operating conditions based on a standard conductive base and with different accessories, thereby simplifying the production process and reducing manufacturing costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a multi-purpose combined electrical connection structure for GIS according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of a multi-purpose combined electrical connection structure for GIS according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of a multi-purpose combined electrical connection structure for GIS according to the present invention. Figure 3 ; Figure 4 This is a schematic diagram of a conductive base used in conjunction with a multi-purpose combined electrical connection structure for GIS according to the present invention.

[0023] 1. Combined conductive base, 11. Insulator joint, 12. Expansion interface, 13. Accessory mating plane, 2. Interface seat, 3. Shielding head, 4. Transition support, 5. Pot-type insulator. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] See the appendix of this invention. Figures 1 to 4 According to an embodiment of the present invention, a GIS multi-purpose combined electrical connection structure includes: The combined and matched conductive base 1 has an insulator connector 11 at one end for connecting the pot-type insulator 5, and multiple expansion interfaces 12, at least three, are provided on the periphery of the combined and matched conductive base 1. Interface socket 2, which can be detachably connected to any expansion interface 12, is used to connect a conductive rod; The shielding head 3 can be detachably connected to any expansion interface 12. The shielding head 3 is used to block the expansion interface 12 that is not in use during operation. The transition support 4 can be detachably connected to any expansion interface 12. The transition support 4 is used for transition connection of cable terminals. Multiple expansion interfaces of the combined conductive base 1 are matched through the combination of the transition support 4 and / or the interface base to meet the connection of multiple devices under different working conditions.

[0026] It is understandable that the combined conductive base 1 provides the basis for the combined installation, and the interface base 2, shield head 3 and transition support 4 are all metal parts, and can be interchangeably connected to the expansion interface 12.

[0027] In other embodiments, the conductive base 1 for the assembly is a rectangular base, and the periphery of the conductive base 1 for the assembly has multiple accessory mating planes 13. The expansion interface 12 is a threaded hole and is opened on the accessory mating plane 13. The interface seat 2, the shielding head 3, or the transition support 4 can all abut against the accessory mating plane 13, providing a premise for interchangeable connection of accessories.

[0028] In some other specific embodiments, the interface seat 2 is provided with a threaded opening for connecting the conductive rod, and the end of the interface seat 2 away from the threaded opening is provided with a mating surface for abutting the accessory mating plane 13. The mating surface is provided with a connecting hole that passes through the threaded opening, and the interface seat 2 is connected to the expansion interface 12 by screws.

[0029] In some other embodiments, the shielding head 3 has a contact surface that abuts against the attachment mating plane 13, and the shielding head 3 has a screw hole that penetrates the contact surface. The shielding head 3 is connected to the expansion interface 12 by screws. The shielding head 3 is used to block the expansion interface 12 when it is not in use during operation to uniformize the electric field.

[0030] In some other specific embodiments, the transition support 4 is used to transition between the cable terminal and the conductive base 1 for the assembly. The transition support 4 is provided with a hole-connected lug that abuts against the accessory mating plane 13. The transition support 4 is connected to the expansion interface 12 by screws, which simplifies the difficulty of directly connecting the cable terminal to the conductive base and facilitates subsequent independent disassembly and maintenance.

[0031] In practical implementation, the combined conductive base 1, together with three interface sockets, forms a cross-shaped electrical connection structure. The three interface sockets 2 are distributed on three sides of the combined conductive base 1. (See attached diagram.) Figure 1 .

[0032] In other embodiments, the combined conductive base 1, along with an interface socket and two shielding heads, forms an "L"-shaped electrical connection structure, as shown in the attached figure. Figure 2 .

[0033] In other embodiments, the combined conductive base 1, interface seat 2, shielding head 3, and transition support 4 form a "T"-shaped electrical connection structure. The interface seat 2 and transition support 4 are located on both sides of the combined conductive base 1. (Refer to the attached drawing.) Figure 3 The conductive base 1 of the combination can be connected to a conductive rod to connect to other equipment.

[0034] This invention allows for various electrical connection structure types through different combinations of accessories to match different working conditions. It can be arbitrarily arranged and combined according to the needs of the power station to achieve interoperability and greatly improve docking efficiency.

[0035] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-purpose combined electrical connection structure for GIS, characterized in that, include: A combined conductive base (1) is provided at one end of the combined conductive base (1), and multiple expansion interfaces (12) are provided on the periphery of the combined conductive base (1). Interface base (2), which can be detachably connected to any of the expansion interfaces (12), and is used to connect a conductive rod; The shield head (3) is detachably connected to any of the expansion interfaces (12). The shield head (3) is used to block the expansion interfaces (12) that are idle during operation. Transition support (4), which can be detachably connected to any of the expansion interfaces (12), is used for transition connection of cable terminals. Multiple expansion interfaces of the combined conductive base (1) are matched through the combination of the transition support (4) and / or the interface base to meet the connection of multiple devices under different working conditions.

2. The GIS multi-purpose combined electrical connection structure according to claim 1, characterized in that, The combined conductive base (1) is a rectangular base. The periphery of the combined conductive base (1) has multiple accessory mating planes (13). The expansion interface (12) is a threaded hole and is opened on the accessory mating plane (13). The interface seat (2), shielding head (3), or transition support (4) can all abut against the accessory mating plane (13).

3. The GIS multi-purpose combined electrical connection structure according to claim 2, characterized in that, The interface seat (2) is provided with a threaded opening for connecting the conductive rod. The end of the interface seat (2) away from the threaded opening is provided with a mating surface. The mating surface is used to abut against the accessory mating plane (13). The mating surface is provided with a connecting hole that passes through the threaded opening. The interface seat (2) is connected to the expansion interface (12) by screws.

4. The GIS multi-purpose combined electrical connection structure according to claim 3, characterized in that, The shielding head (3) has a contact surface that abuts against the attachment mating plane (13), and the shielding head (3) has a screw hole that penetrates the contact surface. The shielding head (3) is connected to the expansion interface (12) by screws.

5. The GIS multi-purpose combined electrical connection structure according to claim 3, characterized in that, The transition support (4) is used for transition connection of cable terminal and combined matching conductive base (1). The transition support (4) is provided with a hole-connected lug that abuts against the accessory mating plane (13). The transition support (4) is connected to the expansion interface (12) by screws.

6. The GIS multi-purpose combined electrical connection structure according to claim 1, characterized in that, The combined conductive base (1) and three interface seats form a cross-shaped electrical connection structure, and the three interface seats (2) are distributed on the three sides of the combined conductive base (1).

7. The GIS multi-purpose combined electrical connection structure according to claim 1, characterized in that, The combined conductive base (1) is used in conjunction with an interface base and two shielding heads to form an "L"-shaped electrical connection structure.

8. The GIS multi-purpose combined electrical connection structure according to claim 1, characterized in that, The combined conductive base (1), together with the interface seat (2), the shield head (3) and the transition support (4), forms a "T"-shaped electrical connection structure. The interface seat (2) and the transition support (4) are placed on both sides of the combined conductive base (1).

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