Electric connection unit for high-voltage power transmission and distribution
Through the electric conjunction unit with fixed hinge seat, variable ball head and fixed-position buckle cover, the high cost and failure risk caused by frequent bus steering demand is solved, and the flexible steering and stable connection of buses are achieved.
Patent Information
- Application Number
- CN202421942000.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In GIS applications, busbar steering is frequently required, resulting in a right-angle bending structure that increases labor costs and system failure risks.
The electric coupling unit adopts a fixed hinge seat, a variable ball head and a fixed buckle cover. Through the cooperation of the ball-deficient hinge cavity and the spring contact finger, the busbar is flexible in three-dimensional space to avoid right angle bending.
It reduces labor costs and system failure risks, and realizes flexible steering and stable connection of the busbar.
Smart Images
Figure CN223093168U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of high-voltage power transmission and distribution, and particularly relates to an electrical connection unit for high-voltage power transmission and distribution. Background Art
[0002] Busbars play a crucial role in high-voltage power transmission and distribution. They are responsible for transmitting electrical energy from the power supply to various users or other substations, collecting and distributing electric power, and ensuring the effective transmission and distribution of electrical energy.
[0003] Currently, in GIS applications, the busbar exists in the form of a conductor within the housing. When multiple sections need to be connected, the busbar realizes this connection through plugging. When the busbar needs to be turned based on actual requirements, a "Z" shape with a right-angle bend is used for turning and plugging the conductor.
[0004] However, in the initial stage when GIS applications were just emerging, there were almost no requirements for GIS transformation or GIS grid connection. Therefore, the above method was a better choice at that time. In recent years, due to the continuous development and changes in GIS applications, GIS transformation and GIS grid connection have gradually increased, resulting in a more frequent need for busbar turning. Under such circumstances, too many right-angle bending structures not only increase labor costs but also lead to excessive system connections, and excessive connections also mean a significant increase in the fault risk of the system. Summary of the Utility Model
[0005] Aiming at the deficiencies of the prior art, the utility model provides an electrical connection unit for high-voltage power transmission and distribution, which can flexibly realize the turning of the busbar in high-voltage power transmission and distribution applications without a right-angle bending structure, thereby not only greatly reducing labor costs but also significantly reducing the fault risk of the system.
[0006] To achieve the above object, the utility model provides the following technical solutions:
[0007] An electrical connection unit for high-voltage power transmission and distribution is arranged between a first plug-in conductor rod and a second plug-in conductor rod to be electrically connected. It is characterized by including: a fixed hinge seat having a connection end and a hinge end. The connection end is fixedly arranged on the second plug-in conductor rod, and the hinge end is formed with a spherical segment hinge cavity. The spherical segment hinge cavity is a spherical segment less than or equal to a hemisphere, and the inner wall of the spherical segment hinge cavity is embedded with a first spring finger that is continuously closed along a predetermined spherical circle. A variable ball head rod has a hinge ball end and a plug-in end. The hinge ball end is a spherical segment that is hingedly matched with the spherical segment hinge cavity. The first spring finger is sleeved on the hinge ball end and clamps the hinge ball end tightly. The plug-in end is formed with a plug-in blind hole, and the inner wall of the plug-in blind hole is embedded with a second spring finger that is continuously closed along the circumference of the plug-in blind hole. The first plug-in conductor rod is inserted into the inside of the second spring finger, and the second spring finger clamps the first plug-in conductor rod tightly. A posture-determining cover has a posture-determining channel with open ends at both ends. The posture-determining channel is in a frustum shape and is in interference fit with a part of the hinge ball end. The posture-determining cover is screwed and covered on the orifice of the spherical segment hinge cavity. The posture-determining channel is correspondingly communicated with the spherical segment hinge cavity, so that the posture-determining cover presses and fixes the variable ball head rod in the spherical segment hinge cavity.
[0008] Preferably, the predetermined spherical circle is the great circle of the spherical segment hinge cavity or the small spherical circle of the spherical segment hinge cavity.
[0009] Preferably, the present utility model further includes a unit housing. Taking the included angle value between the connection axis of the first plug-in conductor rod and the plug-in end and the connection axis of the second plug-in conductor rod and the connection end as the transfer included angle, the unit housing has a bent portion with rounded corners. The bent portion has a transfer included angle and corresponds to the hinged matching positions of the hinge ball end and the hinge end.
[0010] Preferably, the connection axis of the fixed hinge seat and the second plug-in conductor rod is perpendicular to the straight line where the height of the spherical segment of the spherical segment hinge cavity is located, and the extension axis of the plug-in blind hole is collinear with the straight line where the height of the spherical segment of the hinge ball end is located.
[0011] Compared with the prior art, the beneficial effects of the present utility model are:
[0012] 1. Since the electrical connection unit for high-voltage power transmission and distribution of the present utility model includes a fixed hinge base, a variable ball head rod, and a posture-determining cover, the fixed hinge base has a connection end and a hinge end. The connection end is fixedly arranged on the second inserted conductor rod, and the hinge end is formed with a spherical segment hinge cavity. The inner wall of the spherical segment hinge cavity is embedded with a first spring finger. The variable ball head rod has a hinge ball end and an inserted end. The hinge ball end is hinged with the spherical segment hinge cavity, and the first spring finger tightly clamps the hinge ball end. The inserted end is formed with an inserted blind hole, and the inner wall of the inserted blind hole is embedded with a second spring finger, and the second spring finger tightly clamps the first inserted conductor rod. The posture-determining cover has a posture-determining channel in the shape of a spherical frustum and is in interference fit with part of the hinge ball end. The posture-determining cover is screwed and covered on the orifice of the spherical segment hinge cavity. When applying the electrical connection unit for high-voltage power transmission and distribution, first embed the hinge ball end into the spherical segment hinge cavity, then rotate the variable ball head rod in three-dimensional space to make the inserted blind hole correspond to the inserted conductor rod in a straight line. Then insert the first inserted conductor rod into the inserted blind hole and finely adjust the three-dimensional posture of the variable ball head rod to ensure the stable matching of the first inserted conductor rod and the inserted blind hole. Finally, fix the hinge ball end in the spherical segment hinge cavity by covering the spherical segment hinge cavity with the posture-determining cover, so that the current variable ball head rod realizes three-dimensional posture fixation, that is, completes the electrical connection of the first inserted conductor rod and the second inserted conductor rod at a predetermined transfer angle in three-dimensional space. Therefore, the present utility model can flexibly realize the turning of the busbar in high-voltage power transmission and distribution applications without a right-angle bending structure, thus not only greatly reducing the labor cost but also greatly reducing the fault risk of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 Schematic diagram of the electrical connection unit for high-voltage power transmission and distribution according to an embodiment of the present utility model;
[0014] Figure 2 Schematic diagram of the fixed hinge base according to an embodiment of the present utility model;
[0015] Figure 3 Schematic diagram of the variable ball head rod according to an embodiment of the present utility model;
[0016] Figure 4 Schematic diagram of the posture-determining cover according to an embodiment of the present utility model;
[0017] Figure 5 Embodiment schematic of the electrical connection unit for high-voltage power transmission and distribution according to an embodiment of the present utility model Figure 1 ;
[0018] Figure 6 Embodiment schematic of the electrical connection unit for high-voltage power transmission and distribution according to an embodiment of the present utility model Figure 2 ;
[0019] Figure 7 Embodiment schematic of the electrical connection unit for high-voltage power transmission and distribution according to an embodiment of the present utility modelFigure 3 。
[0020] In the figure: 100, an electrical connection unit for high-voltage power transmission and distribution; A, the first plug-in conductor rod; B, the second plug-in conductor rod; 10, a fixed hinge base; 11, a connection end; 12, a hinge end; 12a, a spherical segment hinge cavity; 121, a first spring finger; 20, a variable ball head rod; 21, a hinge ball end; 22, a plug-in end; 22a, a plug-in blind hole; 221, a second spring finger; 30, a posture-determining cover; 30a, a posture-determining channel; 40, a unit housing; 40a, a bent portion. Specific embodiments
[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the following embodiments will specifically describe the electrical connection unit for high-voltage power transmission and distribution of the present utility model in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model.
[0022] As Figure 1 shown, the electrical connection unit 100 for high-voltage power transmission and distribution in this embodiment is arranged between the first plug-in conductor rod A and the second plug-in conductor rod B to be electrically connected. In this embodiment, the first plug-in conductor rod A and the second plug-in conductor rod B to be electrically connected belong to two high-voltage power transmission and distribution components to be electrically connected in series (not shown in the drawings).
[0023] The electrical connection unit 100 for high-voltage power transmission and distribution includes a fixed hinge base 10, a variable ball head rod 20, a posture-determining cover 30 and a unit housing 40.
[0024] As Figure 2 shown, the fixed hinge base 10 has a connection end 11 and a hinge end 12. The connection end 11 is fixedly arranged on the second plug-in conductor rod B. The hinge end 12 is formed with a spherical segment hinge cavity 12a. The spherical segment hinge cavity 12a is a spherical segment less than or equal to a hemisphere. The inner wall of the spherical segment hinge cavity 12a is embedded with a first spring finger 121 that is continuously closed along its predetermined spherical circle. And the connection axis of the connection end 11 of the fixed hinge base 10 and the second plug-in conductor rod B, and the straight line where the height of the spherical segment of the spherical segment hinge cavity 12a is located are perpendicular. Specifically, the predetermined spherical circle is the great circle of the inner wall of the spherical segment hinge cavity 12a or the small spherical circle of the spherical surface of the spherical segment hinge cavity 12a. The fixed hinge base 10 has a right-angle bend, and the connection end 11 and the hinge end 12 are respectively located on both sides of the bend.
[0025] As Figure 3As shown, the variable ball head rod 20 has a hinge ball end 21 and a plug end 22, the hinge ball end 21 is a ball segment that is hingedly matched with the ball segment hinge cavity 12a, the first spring contact finger 12a is sleeved on the hinge ball end 21 and clamps the hinge ball end 21; the plug end 22 is formed with a plug blind hole 22a, and the inner wall of the plug blind hole 22a is embedded with a second spring contact finger 221 that is continuously closed along the circumference of the plug blind hole 22a, and the plug conductor rod A is plugged into the second spring contact finger 22 1, and the second spring contact finger 221 clamps the plug-in conductor rod A, so that the high-voltage power transmission and distribution component to be electrically connected forms a stable conduction connection path through the plug-in conductor rod A, the fixed hinge seat 10, the first spring contact finger 121, the variable ball head rod 20, the second spring contact finger 221 and the plug-in conductor rod B. Specifically, the extension axis of the plug-in blind hole 22a and the straight line where the height of the ball segment of the hinge ball end 21 is located are collinear, that is, the variable ball head rod 20 extends in a straight line.
[0026] like Figure 4 As shown, the positioning buckle cover 30 has a positioning channel 30a with two ends open, the positioning channel 30a is in the shape of a spherical table and is interference fit with part of the hinge ball end 21, the positioning buckle cover 30 is arranged on the cavity opening of the ball-cup hinge cavity 12a through a threaded connection cover, the positioning channel 30a is correspondingly connected with the ball-cup hinge cavity 12a, so that the positioning buckle cover 30a presses and fixes the variable ball head rod 20 in the ball-cup hinge cavity 12a, specifically, when the positioning buckle cover 30 is covered on the cavity opening of the ball-cup hinge cavity 12a, the positioning channel 30a and the ball-cup hinge cavity 12a together form a hinge ball fixing chamber larger than a hemisphere (not shown in the drawings), and the hinge ball end 21 is located in the hinge ball fixing chamber, and is clamped and fixed by interference fit with the inner wall of the hinge ball fixing chamber, and the plug-in end 22 passes through the outside of the hinge ball fixing chamber from the positioning channel 30a.
[0027] The angle between the connecting axis of the plug-in conductor rod 1 A and the plug-in end 22 and the angle between the connecting axis of the plug-in conductor rod 2 B and the connecting end are used as the transfer angle.
[0028] The unit housing 40 has a rounded bending portion 40 a , the bending portion 40 a has a transition angle, and the bending portion corresponds to the hinged matching position of the hinge ball end 21 and the hinge end 12 .
[0029] The following describes the application process of the power coupling unit 100 for high-voltage power transmission and distribution in combination with the embodiments:
[0030] First, insert the hinge ball end 21 into the spherical segment hinge cavity 12a. Then, rotate the variable ball head rod 20 in three-dimensional space so that the insertion blind hole 22a is in a straight line corresponding to the insertion conductor rod A. Next, insert the insertion conductor rod A into the insertion blind hole 22a and finely adjust the three-dimensional pose of the variable ball head rod 20 by rotation to ensure the stable matching between the insertion conductor rod A and the insertion blind hole 22a. Finally, cover the spherical segment hinge cavity 12a with the pose-fixing cover 30 to fix the hinge ball end 21 in the spherical segment hinge cavity 12a, thereby realizing the three-dimensional pose fixation of the current variable ball head rod 20, that is, completing the electrical connection between the insertion conductor rod A and the insertion conductor rod B at a predetermined transfer angle in three-dimensional space, as Figures 5 - 7 The illustrated embodiment is the electrical connection continuation form of three different angular relationships formed between the insertion conductor rod A and the insertion conductor rod B after the three-dimensional pose adjustment.
[0031] The above embodiment is a preferred example of the present invention and does not limit the protection scope of the present invention. Various deformations or modifications that can be made by those of ordinary skill in the art without creative labor within the scope of the appended claims still fall within the protection scope of this patent.
Claims
1. An electrical connection unit for high-voltage power transmission and distribution, which is arranged between the first plug-in conductor rod and the second plug-in conductor rod to be electrically connected, and is characterized in that, Comprising: A fixed hinge base having a connection end and a hinge end. The connection end is fixedly provided on the second plugging conductor rod. The hinge end is formed with a spherical segment hinge cavity, which is a spherical segment less than or equal to a hemisphere, and the inner wall of the spherical segment hinge cavity is embedded with a first spring contact finger that is continuously closed along a predetermined spherical circle. A variable ball head rod having a hinge ball end and a plugging end. The hinge ball end is a spherical segment that is hingedly fitted with the spherical segment hinge cavity. The first spring contact finger is fitted and sleeved on the hinge ball end and clamps the hinge ball end; the plugging end is formed with a plugging blind hole, and the inner wall of the plugging blind hole is embedded with a second spring contact finger that is continuously closed along the circumference of the plugging blind hole. The first plugging conductor rod is fitted and inserted inside the second spring contact finger, and the second spring contact finger clamps the first plugging conductor rod. A posture - fixing cover having a posture - fixing channel with both ends open. The posture - fixing channel is in the shape of a frustum of a sphere and is in interference fit with part of the hinge ball end. The posture - fixing cover is screwed and covered on the orifice of the spherical segment hinge cavity. The posture - fixing channel corresponds to and communicates with the spherical segment hinge cavity, so that the posture - fixing cover presses and fixes the variable ball head rod in the spherical segment hinge cavity.
2. The electrical connection unit for high - voltage power transmission and distribution according to claim 1, wherein: Among them, The predetermined spherical circle is the spherical small circle of the spherical segment hinge cavity.
3. The electrical connection unit for high-voltage power transmission and distribution according to claim 1, characterized in that Further comprising: A unit housing Taking the included angle value between the connection axis of the first plugging conductor rod and the plugging end and the connection axis of the second plugging conductor rod and the connection end as the transfer included angle. The unit housing has a bent portion with rounded corners. The bent portion has the transfer included angle and corresponds to the hinged fitting positions of the hinge ball end and the hinge end.
4. The electrical connection unit for high - voltage power transmission and distribution according to claim 1, wherein: Among them, The connection axis of the fixed hinge base and the second plugging conductor rod is perpendicular to the straight line where the height of the spherical segment of the spherical segment hinge cavity is located. The extension axis of the plugging blind hole and the straight line where the height of the spherical segment of the hinge ball end is located are collinear.