An electrical equipment connection device

Abstract

This utility model discloses an electrical equipment connection device, including a hardware base and a conductive rod disposed on the hardware base, with an energy-dissipating ring disposed outside the conductive rod. An energy-dissipating component is installed on the conductive rod, comprising a hanging plate and an elastic energy-dissipating element connected to the hanging plate. The elastic energy-dissipating element is connected to the conductive rod. An energy-dissipating groove is formed on the inner side of the energy-dissipating ring, with blocking elements at both ends of the groove. The hanging plate is disposed within the energy-dissipating groove, and an installation groove penetrating the hardware base is formed on the energy-dissipating ring. This utility model dissipates energy through friction by the interaction of the hanging plate and the energy-dissipating groove. Simultaneously, the elastic energy-dissipating element connected to the hanging plate further dissipates energy elastically and resets after energy dissipation. This dual-stage energy dissipation mode is formed through sliding friction and suspension buffering, providing both good electrical connection performance and active decoupling, shock protection, and rapid recovery functions.

Description

Technical Field

[0001] This utility model belongs to the field of power equipment technology, and in particular relates to an electrical equipment connection device. Background Technology

[0002] With the rapid expansion of the power grid and the increasing cross-regionalization of energy allocation, ultra-high voltage (UHV) transmission technology has become the core pillar of power system development. UHV transmission systems have advantages such as long transmission distance, large power capacity, and low loss. However, with the increase in voltage level and system scale, the mechanical, electrical, and environmental stresses faced by electrical equipment connection hardware have also increased significantly. Especially in earthquake environments, their structural safety and operational stability face unprecedented challenges.

[0003] In recent years, the damage caused by earthquakes to ultra-high voltage (UHV) systems has frequently drawn attention. Even if the main UHV electrical equipment itself is not severely damaged, the failure of connecting hardware often becomes the direct cause of equipment malfunction, system tripping, or busbar detachment. It is evident that connecting hardware is not only a structural connection element between equipment, but also one of the weakest links in the seismic safety chain. Its design of vibration reduction, decoupling, and energy dissipation capabilities is crucial. Traditional connecting hardware is mostly based on the concept of "strong connection," which aims to ensure the mechanical coupling and electrical continuity between equipment under various operating conditions. However, this high-rigidity connection structure lacks sufficient flexibility under seismic loading, leading to stress concentration, structural fracture, and even catastrophic failures such as detachment and collision. Especially in UHV scenarios, the high height, low natural frequency, and upward shift of the center of gravity of support equipment make it more susceptible to amplified response under seismic loads, which can easily cause hardware damage and seriously affect line stability and safe operation of equipment.

[0004] Current energy-dissipating fittings incorporate nonlinear energy-dissipating mechanisms such as slip, yielding, friction, and viscous damping, embedding flexible response units in the connection structure. This allows them to actively absorb seismic input energy during strong earthquakes, reducing the dynamic load transmitted from the bus system to the main equipment. In connection structures with energy-dissipating characteristics, the maximum relative displacement between equipment can be reduced by 30%-60%, significantly reducing the probability of failure. The design technology system of energy-dissipating connection fittings mainly includes (1) slip-type energy-dissipating devices: introducing controllable slip surfaces (such as friction plates, PTFE sliding plates) into the fitting structure to absorb energy through displacement sliding. Vibration energy, while using the limiting structure to control the sliding range; (2) Yield-type connection components: set metal yield units (such as shear plates, flexible connection plates), consume energy through their plastic deformation, and at the same time have a certain recovery ability; (3) Stiffness-variable connection mechanism: adopt multi-segment stiffness design or force-controlled triggering device, so that the connection hardware exhibits different stiffness and energy consumption response under different vibration levels, and realizes the function of "no response to micro-vibration, active energy consumption in strong vibration"; (4) Elastic-plastic coupling structure: combine rubber elastic material with metal damping components to construct a flexible connection unit with both elastic support and plastic energy consumption characteristics;

[0005] However, the current electrical equipment connection hardware still generally has the following problems when facing earthquake conditions: (1) the connection structure is rigid and has low energy consumption, and the earthquake input energy is not effectively released; (2) there is a lack of high-performance decoupling mechanism between equipment, and the rigid force transmission of the busbar is prone to mutual damage between equipment; (3) the existing connection method has unstable seismic resistance and lacks a balanced structure that takes into account both electrical continuity and mechanical toughness. Utility Model Content

[0006] The purpose of this utility model is to overcome the defects of the prior art and provide an electrical equipment connection device. It uses the interaction between the hanging plate and the energy dissipation groove to dissipate energy through friction. At the same time, the elastic energy dissipation component connected to the hanging plate can further dissipate energy elastically and reset after the energy dissipation is completed. That is, a two-stage energy dissipation mode is formed through sliding friction and suspension buffer. It has both good electrical connection performance and active decoupling, shock protection and rapid recovery functions.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] An electrical equipment connection device includes a hardware base and a conductive rod disposed on the hardware base, and an energy dissipation ring is also disposed outside the conductive rod;

[0009] The conductive rod is equipped with an energy-dissipating component, which includes a hanging plate and an elastic energy-dissipating element connected to the hanging plate. The elastic energy-dissipating element is connected to the conductive rod. An energy-dissipating groove is formed on the inner side of the energy-dissipating ring. The two ends of the energy-dissipating groove have blocking elements. The hanging plate is set in the energy-dissipating groove. An installation groove penetrating the hardware base is formed on the energy-dissipating ring.

[0010] In this embodiment, under mild or moderate earthquakes, the suspended plate moves along the energy dissipation channel, and the contact interface between the two can dissipate energy using friction. However, when a major earthquake occurs, after the relative displacement exceeds the device threshold, that is, when the suspended plate contacts the blocking parts at both ends of the energy dissipation channel, the elastic energy dissipation component stores energy through deformation, converting the earthquake energy into the elastic potential energy of the spring. When the earthquake stops, the elastic potential energy of the elastic energy dissipation component is released, restoring the position of the conductive rod. Thus, a two-stage energy dissipation mode can be formed during an earthquake through sliding friction and suspension buffering, which not only has good electrical connection performance, but also has active decoupling, seismic protection and rapid recovery functions.

[0011] In one embodiment, the blocking element is a stop baffle disposed at both ends of the energy dissipation tank.

[0012] In one embodiment, the hardware base includes a base plate and a support member disposed on the base plate, the top of the support member having an arc-shaped structure, and the conductive rod being mounted on the support member.

[0013] In one embodiment, the elastic energy dissipation component is two symmetrically arranged variable-diameter springs, both of which are sleeved on the conductive rod. The larger diameter ends of the two variable-diameter springs are arranged close to each other and are both connected to the hanging plate, while the smaller diameter ends of the two variable-diameter springs are both connected to the conductive rod.

[0014] In one embodiment, the energy dissipation ring extends through the support member, and the size of the mounting groove on the energy dissipation ring matches the size of the support member.

[0015] In one embodiment, the diameter of the conductive rod gradually increases from both ends toward the middle, and the diameters at both ends of the conductive rod are equal.

[0016] In one embodiment, the support is made of an insulating material.

[0017] In one embodiment, the base plate is connected to the insulator.

[0018] The beneficial effects of this utility model are as follows:

[0019] Under mild or moderate earthquakes, the suspended plate can move the conductive rod along the energy dissipation groove of the energy dissipation ring. The contact interface between the suspended plate and the energy dissipation groove can dissipate energy through friction. However, under larger earthquakes, when the relative displacement of the suspended plate exceeds the device threshold, i.e., when the suspended plate contacts the blocking parts at both ends of the energy dissipation groove, the variable-diameter spring connected to the suspended plate and the conductive rod stores energy through deformation, converting the earthquake energy into the elastic potential energy of the variable-diameter spring. When the earthquake stops, the elastic potential energy of the variable-diameter spring is released, restoring the position of the conductive rod. Thus, it can form a two-stage energy dissipation mode through sliding friction and suspension buffer during an earthquake. It has good electrical connection performance, as well as active decoupling, seismic protection and rapid recovery functions. Compared with traditional rigid connection or flexible busbar connection methods, this device has a simple structure, uses universal materials and is easy to install. It is particularly suitable for seismic design of power equipment in UHV transmission projects and high-intensity earthquake zones, and has broad engineering application prospects. Attached Figure Description

[0020] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:

[0021] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0022] Figure 2 This shows a structural schematic diagram of the present invention from another direction;

[0023] Figure 3 This diagram shows the structural schematic of the connection between the variable diameter spring and the hanging plate of this utility model;

[0024] Figure 4 A schematic diagram of the structure of the fitting base of this utility model is shown;

[0025] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0026] Figure label:

[0027] 1-Conductive rod, 2-Energy dissipation ring, 3-Hanging plate, 4-Energy dissipation groove, 5-Stop baffle, 6-Variable diameter spring, 7-Supporting component, 8-Base plate. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] This utility model provides an electrical equipment connection device, such as... Figure 1 As shown, it includes a hardware base and a conductive rod 1 set on the hardware base, and an energy-dissipating ring 2 is also set outside the conductive rod 1;

[0030] Among them, the conductive rod 1 is equipped with an energy-consuming component, which includes a hanging plate 3 and an elastic energy-consuming component connected to the hanging plate 3. The elastic energy-consuming component is connected to the conductive rod 1. An energy-consuming groove 4 is opened on the inner side of the energy-consuming ring 2. The two ends of the energy-consuming groove 4 have blocking components. The hanging plate 3 is set in the energy-consuming groove 4. An installation groove that penetrates the hardware base is opened on the energy-consuming ring 2.

[0031] It should be noted that in this embodiment, frictional energy dissipation is achieved through the cooperation of the hanging plate 3 and the energy dissipation groove 4. At the same time, the elastic energy dissipation component connected to the hanging plate 3 can further dissipate elastic energy and reset after the energy dissipation is completed. That is, a dual-stage energy dissipation mode is formed through sliding friction and suspension buffer, which has both good electrical connection performance and active decoupling, anti-vibration protection and rapid recovery functions.

[0032] In one embodiment, such as Figures 1 to 3 As shown, the blocking component is a stop baffle 5 set at both ends of the energy dissipation tank 4, and the elastic energy dissipation component is two symmetrically arranged variable diameter springs 6. Both variable diameter springs 6 are sleeved on the conductive rod 1. The larger diameter ends of the two variable diameter springs 6 are set close to each other and are both connected to the hanging plate 3. The smaller diameter ends of the two variable diameter springs 6 are both connected to the conductive rod 1.

[0033] It should be noted that in this embodiment, two variable diameter springs 6 are connected at one end to the conductive rod 1 and at the other end to the hanging plate 3. Under mild or moderate earthquakes, the hanging plate 3 can drive the conductive rod 1 to move along the energy dissipation groove 4 of the energy dissipation ring 2. The contact interface between the hanging plate 3 and the energy dissipation groove 4 can dissipate energy through friction. When encountering a larger earthquake, when the relative displacement of the hanging plate 3 exceeds the device threshold, that is, when the hanging plate 3 contacts the blocking parts at both ends of the energy dissipation groove 4, the variable diameter springs 6 accumulate energy through deformation, converting the earthquake energy into the elastic potential energy of the variable diameter springs 6. When the earthquake stops, the elastic potential energy of the variable diameter springs 6 is released, restoring the position of the conductive rod 1. That is, a two-stage energy dissipation mode can be formed during the earthquake through sliding friction and suspension buffer. Compared with the traditional rigid connection or flexible busbar connection method, the connection device provided in this embodiment has a simple structure, uses universal materials, and is easy to install. It is particularly suitable for the seismic design of power equipment in ultra-high voltage power transmission projects and high earthquake intensity areas.

[0034] In one embodiment, such as Figure 3 and Figure 4 As shown, the hardware base includes a base plate 8 and a support member 7 disposed on the base plate 8. The top of the support member 7 has an arc-shaped structure. The conductive rod 1 is installed on the support member 7. That is, the top of the support member 7 is set with an arc-shaped structure to match the conductive rod 1, so that the conductive rod 1 can slide on the top of the support member 7.

[0035] In one embodiment, such as Figure 1As shown, the energy-dissipating ring 2 passes through the support member 7, and the size of the mounting groove opened on the energy-dissipating ring 2 matches the size of the support member 7, that is, the position of the energy-dissipating ring 2 is fixed by the hardware base.

[0036] In one embodiment, the diameter of the conductive rod 1 gradually increases from both ends toward the middle. The diameters at both ends of the conductive rod 1 are equal. The two ends of the conductive rod 1 are inserted into the terminals of two adjacent pillar-type electrical devices to achieve electrical continuity and mechanical connection. The increased diameter in the middle of the conductive rod 1 improves the strength of the conductive rod 1.

[0037] In one embodiment, the support 7 is made of insulating material, and the base plate 8 is connected to the insulator;

[0038] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. An electrical equipment connection device, characterized in that, It includes a hardware base and a conductive rod disposed on the hardware base, and an energy-dissipating ring is also disposed outside the conductive rod; The conductive rod is equipped with an energy-dissipating component, which includes a hanging plate and an elastic energy-dissipating element connected to the hanging plate. The elastic energy-dissipating element is connected to the conductive rod. An energy-dissipating groove is formed on the inner side of the energy-dissipating ring. The two ends of the energy-dissipating groove have blocking elements. The hanging plate is set in the energy-dissipating groove. An installation groove penetrating the hardware base is formed on the energy-dissipating ring.

2. The electrical equipment connection device according to claim 1, characterized in that, The blocking component is a stop baffle installed at both ends of the energy dissipation tank.

3. The electrical equipment connection device according to claim 1, characterized in that, The hardware base includes a base plate and a support member disposed on the base plate. The top of the support member has an arc-shaped structure, and the conductive rod is mounted on the support member.

4. An electrical equipment connection device according to claim 1, characterized in that, The elastic energy-dissipating component consists of two symmetrically arranged variable-diameter springs. Both variable-diameter springs are sleeved on the conductive rod. The larger diameter ends of the two variable-diameter springs are arranged close to each other and are both connected to the hanging plate. The smaller diameter ends of the two variable-diameter springs are both connected to the conductive rod.

5. An electrical equipment connection device according to claim 3, characterized in that, The energy dissipation ring passes through the support member, and the size of the mounting groove on the energy dissipation ring matches the size of the support member.

6. An electrical equipment connection device according to claim 1, characterized in that, The diameter of the conductive rod gradually increases from both ends toward the middle, and the diameters at both ends of the conductive rod are equal.

7. An electrical equipment connection device according to claim 3, characterized in that, The support is made of insulating material.

8. An electrical equipment connection device according to claim 3, characterized in that, The base plate is connected to the insulator.

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