Lightweight moving contact slip ring

Abstract

The invention relates to a lightweight moving contact slip ring, and belongs to the technical field of high-voltage switches, the lightweight moving contact slip ring comprises a conductive slip ring and a weight reduction compression ring, an annular groove is dug in the inner ring side of the conductive slip ring, and one end of the conductive slip ring is provided with a plurality of fixing holes; the weight reduction pressing ring is arranged in the annular groove, and a plurality of threaded grooves are formed in one end of the weight reduction pressing ring; a plurality of bolts are fixed at one end, corresponding to the static contact, of the moving contact; and the plurality of bolts respectively penetrate through the plurality of fixing holes and are in threaded connection in the corresponding threaded grooves. The annular groove is dug in the inner ring side of the conductive slip ring, equal-wall-thickness through-flow optimization is achieved, redundant mass generated by local thickening is eliminated, and extremely light weight of the structure is achieved on the premise that the current bearing capacity and the mechanical connection strength are guaranteed; and then an integrated weight reduction compression ring is introduced, and the conductive slip ring and the weight reduction compression ring are stably connected through a plurality of bolts at one end of the moving contact, so that mechanical-electrical integrated coupling is formed, and the operation stability and the anti-vibration reliability of the product under complex working conditions are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage switch technology, and in particular to a lightweight moving contact slip ring. Background Technology

[0002] Moving contact slip rings are key structural components in high-voltage switchgear, undertaking core functions such as current flow, nozzle fixation, and uniform electric field distribution. Currently, moving contact slip rings on the market, such as... Figure 1 , Figure 2 and Figure 3 As shown, the slip ring is mainly formed by integral casting or die casting of the inner pressure ring and the outer slip ring. To maintain the high conductivity of the moving contact slip ring, it is generally made of copper alloy. Although this meets the requirements of conductivity and mechanical strength, it also results in a high overall weight of the slip ring. In addition, this design defect has triggered a series of chain problems: First, the excessively heavy slip ring significantly increases the operating thrust required for the moving contact to move, directly causing an increase in the load on the operating mechanism and an increase in energy loss; Second, the huge inertial force not only constitutes a bottleneck for improving the opening and closing speed, but also forces the transmission system to be over-designed, increasing the structural complexity and manufacturing cost; Third, from the perspective of the whole life cycle, the excessive use of materials also means unnecessary resource investment and economic burden.

[0003] Therefore, there is an urgent need to innovate the lightweight and structural integration of moving contact slip rings. By optimizing material distribution and connection methods, while ensuring electrical performance and mechanical reliability, we can fundamentally reduce their weight and inertia, thereby simplifying transmission design, reducing operating energy consumption, improving response speed, and achieving overall optimization of product cost and operational reliability. Summary of the Invention

[0004] This invention provides a lightweight moving contact slip ring, which solves the technical problems of existing moving contact slip rings being heavy, having complex transmission, being difficult to operate, and having a slow response speed.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a lightweight moving contact slip ring, comprising: a conductive slip ring and a weight-reducing pressure ring, wherein the conductive slip ring is located at one end of the moving contact corresponding to the stationary contact and an annular groove is formed on its inner ring side; the conductive slip ring is provided with a plurality of fixing holes at one end corresponding to the moving contact, the plurality of fixing holes being spaced apart along the annular direction of the conductive slip ring and all communicating with the annular groove; the weight-reducing pressure ring is placed in the annular groove and is provided with a plurality of threaded grooves at one end corresponding to the moving contact, the plurality of threaded grooves being arranged opposite to the plurality of fixing holes; a plurality of bolts are fixed at one end of the moving contact corresponding to the stationary contact, the plurality of bolts passing through the plurality of fixing holes and threadedly connected to the corresponding threaded grooves.

[0006] The beneficial effects of this invention are as follows: It pioneers a design for optimized current flow through equal wall thickness in the moving contact slip ring, achieving precise material utilization and extreme lightweighting. This solves the technical problems of material waste and uneven performance caused by existing integrated moving contact slip ring structures. Firstly, an annular groove is carved into the inner ring side of the conductive slip ring to achieve optimized current flow through equal wall thickness, eliminating redundant mass caused by local thickening. While ensuring current carrying capacity and mechanical connection strength, this achieves extreme lightweighting of the structure, reducing manufacturing costs and motion inertia. Secondly, to address potential connection reliability issues arising from the lightweighting of the conductive slip ring, an integrated weight-reducing pressure ring is introduced. Multiple bolts on one end of the moving contact securely connect the conductive slip ring and the weight-reducing pressure ring, forming a mechanical-electrical integrated coupling, effectively improving the product's operational stability and vibration resistance reliability under complex working conditions.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the middle part of the outer ring of the conductive slip ring to the end away from the moving contact is bent sequentially towards the center of the conductive slip ring to form an arc transition.

[0009] Furthermore, the weight-reducing pressure ring includes a first half-ring and a second half-ring, with the two arc-shaped ends of the first half-ring respectively arranged opposite to the two arc-shaped ends of the second half-ring and placed in the annular groove; a plurality of threaded grooves are spaced along the annular direction at one end of the first half-ring and the second half-ring corresponding to the moving contact.

[0010] The further beneficial effect of adopting the above is that by dividing the weight-reducing pressure ring into two halves and installing the first half ring and the second half ring respectively in the annular groove of the conductive slip ring, the ease of installation of the weight-reducing pressure ring can be improved.

[0011] Furthermore, the inner ring side of the weight-reducing pressure ring, away from the moving contact, engages with the slot of the nozzle.

[0012] Furthermore, the wall thickness of the conductive slip ring is 5-6 mm.

[0013] Furthermore, the conductive slip ring is made of copper alloy.

[0014] The further beneficial effect of adopting the above is that, since the conductive slip ring is still made of copper alloy material, the conductivity and mechanical strength of the moving contact slip ring can be ensured.

[0015] Furthermore, the weight-reducing pressure ring is made of aluminum alloy.

[0016] The further beneficial effect of adopting the above is that, since the weight-reducing pressure ring is made of aluminum alloy, the weight of the moving contact slip ring can be significantly reduced.

[0017] Furthermore, it also includes a pressure cylinder, which is sleeved outside the moving contact and contacts one end of the conductive slip ring corresponding to the moving contact. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an existing moving contact slip ring;

[0019] Figure 2 This is a schematic diagram of a half-section three-dimensional structure of an existing moving contact slip ring; Figure 3 A schematic diagram of the existing moving contact slip ring installation structure; Figure 4 This is a schematic diagram of the half-section volume structure of a lightweight moving contact slip ring according to the present invention; Figure 5 This is a three-dimensional structural diagram of the conductive slip ring in a lightweight moving contact slip ring according to the present invention; Figure 6 This is a three-dimensional structural diagram of the weight-reducing pressure ring in a lightweight moving contact slip ring according to the present invention; Figure 7 This is a schematic diagram of the installation structure of a lightweight moving contact slip ring according to the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Conductive slip ring; 11. Annular groove; 12. Fixing hole; 2. Weight-reducing pressure ring; 21. Threaded groove; 22. First half ring; 23. Second half ring; 24. Slot; 3. Moving contact; 4. Bolt; 5. Nozzle; 6. Air cylinder. Detailed Implementation

[0021] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0022] like Figure 4 As shown, a lightweight moving contact slip ring includes: a conductive slip ring 1 and a weight-reducing pressure ring 2. The conductive slip ring 1 is located at one end of the moving contact 3 corresponding to the stationary contact, and an annular groove 11 is carved into its inner ring side. The conductive slip ring 1 has a plurality of fixing holes 12 at one end corresponding to the moving contact 3. The plurality of fixing holes 12 are spaced apart along the annular direction of the conductive slip ring 1 and are all connected to the annular groove 11. The weight-reducing pressure ring 2 is placed in the annular groove 11 and has a plurality of threaded grooves 21 at one end corresponding to the moving contact 3. The plurality of threaded grooves 21 are respectively arranged opposite to the plurality of fixing holes 12. A plurality of bolts 4 are fixed at one end of the moving contact 3 corresponding to the stationary contact. The plurality of bolts 4 pass through the plurality of fixing holes 12 and are threaded into the corresponding threaded grooves 21.

[0023] like Figure 7As shown, in some specific embodiments, the middle part of the outer ring side of the conductive slip ring 1 to the end away from the moving contact 3 is bent sequentially towards the center of the conductive slip ring 1 to form an arc transition.

[0024] like Figure 6 As shown, in some specific embodiments, the weight-reducing pressure ring 2 may include a first half-ring 22 and a second half-ring 23. The two arc-shaped ends of the first half-ring 22 are respectively arranged opposite to the two arc-shaped ends of the second half-ring 23 and placed in the annular groove 11. A plurality of threaded grooves 21 are spaced along the annular direction at one end of the first half-ring 22 and the second half-ring 23 corresponding to the moving contact 3.

[0025] In some specific embodiments, the inner ring side of the weight-reducing pressure ring 2 away from the moving contact 3 is provided with a slot 24 for engaging the nozzle 5.

[0026] Specifically, the wall thickness of the conductive slip ring 1 can be 5 to 6 mm.

[0027] Specifically, the conductive slip ring 1 can be made of copper alloy.

[0028] Specifically, the weight-reducing pressure ring 2 can be made of aluminum alloy.

[0029] like Figure 7 As shown, in some specific embodiments, a pressure cylinder 6 is also included, which is sleeved on the outside of the moving contact 3 and contacts one end of the conductive slip ring 1 corresponding to the moving contact 3.

[0030] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lightweight moving contact slip ring, characterized in that, include: A conductive slip ring (1) is located at one end of the moving contact (3) corresponding to the stationary contact, and an annular groove (11) is dug on its inner ring side. The conductive slip ring (1) is provided with a plurality of fixing holes (12) at one end of the moving contact (3). The plurality of fixing holes (12) are distributed at intervals along the annular direction of the conductive slip ring (1) and are all connected to the annular groove (11). Weight-reducing pressure ring (2), the weight-reducing pressure ring (2) is placed in the annular groove (11) and has a plurality of threaded grooves (21) at one end corresponding to the moving contact (3), the plurality of threaded grooves (21) are respectively arranged opposite to the plurality of fixing holes (12); The moving contact (3) is fixed with a plurality of bolts (4) at one end corresponding to the stationary contact. The plurality of bolts (4) pass through the plurality of fixing holes (12) and are threaded into the corresponding threaded grooves (21).

2. The lightweight moving contact slip ring according to claim 1, characterized in that, The conductive slip ring (1) is bent in sequence from the middle of the outer ring side to the end away from the moving contact (3) towards the center of the conductive slip ring (1) to form an arc transition.

3. A lightweight moving contact slip ring according to claim 1, characterized in that, The wall thickness of the conductive slip ring (1) is 5-6 mm.

4. A lightweight moving contact slip ring according to claim 1, characterized in that, The weight-reducing pressure ring (2) includes a first half-ring (22) and a second half-ring (23). The two arc-shaped ends of the first half-ring (22) are respectively arranged opposite to the two arc-shaped ends of the second half-ring (23) and placed in the annular groove (11). A plurality of threaded grooves (21) are spaced along the annular direction at one end of the first half-ring (22) and the second half-ring (23) corresponding to the moving contact (3).

5. A lightweight moving contact slip ring according to claim 1, characterized in that, The weight-reducing pressure ring (2) has a groove (24) for engaging the nozzle (5) on the inner ring side away from the moving contact (3).

6. A lightweight moving contact slip ring according to claim 1, characterized in that, The conductive slip ring (1) is made of copper alloy.

7. A lightweight moving contact slip ring according to claim 1, characterized in that, The weight-reducing pressure ring (2) is made of aluminum alloy.

8. A lightweight moving contact slip ring according to claim 1, characterized in that, It also includes a pressure cylinder (6), which is sleeved outside the moving contact (3) and contacts one end of the conductive slip ring (1) corresponding to the moving contact (3).

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