Multi-split current line clamp

Abstract

The utility model belongs to power supply current-carrying equipment technical field, especially relates to a kind of multi-split current-carrying wire clamp, it solves the problem that single terminal terminal current lead is prone to larger temperature rise due to conductor skin effect, solves the problem that terminal terminal and connecting plate are located in the same plane, leading to the connection transition of terminal terminal and stranded wire is not smooth.The present multi-split current-carrying wire clamp, including connecting plate and the plate body fixed structure being set on connecting plate, the parallel arrangement of N stranded wire connecting parts is provided in the one end of connecting plate, N≥2, the included angle between stranded wire connecting part and the plane where connecting plate is R, 0°<R<90°.Realized through shunt effect to reduce conductor skin effect, reduce the effect of temperature rise in process, simultaneously realized the smooth transition of aluminium stranded wire, reduce stress, improve overall strength.

Description

Technical Field

[0001] This utility model belongs to the technical field of power supply current-carrying equipment, and specifically relates to a multi-split current-carrying clamp. Background Technology

[0002] Current-carrying clamps are metal accessories used for non-load-bearing current-carrying connections of conductors. Their main function is to ensure good electrical contact without hysteresis and eddy current losses.

[0003] In existing technologies, most current-carrying clamps have only one terminal. The busbar and connecting stranded wire are respectively connected to the main body of the current-carrying clamp and the terminal. Under current-carrying conditions, especially under high load conditions, the skin effect of the conductor can easily generate a large temperature rise, posing a safety hazard.

[0004] Furthermore, the main body and terminals of most current-carrying clamps are generally located on the same plane, and the main body of the current-carrying clamp is mostly installed horizontally or vertically. This also means that the extension direction of the stranded wire connection is also horizontal or vertical. Under the action of gravity, and even in order to provide a certain tension redundancy, the stranded wire is installed in a concave arc shape, and the direction of the stranded wire end is inclined. Obviously, the connection end of the stranded wire and the connection part of the stranded wire are not collinear, and it is difficult for the stranded wire end and the connection part of the stranded wire to transition smoothly. There is a large stress between them, which affects the overall strength. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a multi-split current-carrying clamp.

[0006] To achieve the innovative objectives of this utility model, the following technical solutions can be used: A multi-split current-carrying clamp includes a connecting plate and a plate fixing structure disposed on the connecting plate. N stranded wire connection parts are arranged side by side at one end of the connecting plate, where N≥2. The angle between the stranded wire connection parts and the plane of the connecting plate is R, where 0°<R<90°.

[0007] This utility model's wire clamp consists of an integrally connected connecting plate and a stranded wire connecting part. The connecting plate can be installed in the corresponding position through a plate fixing structure, and simultaneously, the connecting plate is electrically connected to the busbar. The stranded wire connecting part is electrically connected to the stranded wire. This wire clamp acts as a current carrier, realizing the conductive connection from the busbar to the stranded wire. Furthermore, multiple stranded wire connecting parts are arranged in parallel to achieve a one-to-many current-guiding design. The current-splitting effect reduces the skin effect of the conductor, reducing the temperature rise during the process. The number of stranded wire connecting parts is preferably three, at which point the temperature rise can be reduced by more than 40%. Moreover, the stranded wire connecting part and the connecting plate of this wire clamp form an acute angle. Since the connecting plate is generally in a horizontal or vertical state after installation, the stranded wire is connected between two sets of wire clamps. Due to gravity and to achieve tension redundancy of the stranded wire, the stranded wire is generally concave arc-shaped. To accommodate the tilt angle of the stranded wire end, the stranded wire connecting part is designed to be bent relative to the connecting plate. The bending direction is adapted to the direction of the stranded wire, realizing a smooth transition of the aluminum stranded wire, reducing stress, and improving overall strength. Additionally, it should be noted that R here refers to the angle between the plane of the connecting plate and the axis of the stranded wire connection. The direct angle between the two components should be the supplementary angle of R.

[0008] In the aforementioned multi-split current-carrying clamp, the stranded wire connection part includes a tubular terminal block with an open upper end. The lower end of the terminal block is closed by a solid column and integrally connected to the connecting plate. The outer diameter of the solid column is smaller than the outer diameter of the terminal block, and the outer diameter of the connection end between the solid column and the terminal block gradually increases from the lower end to the upper end.

[0009] One end of the terminal block is closed and the other end is open. The solid post is connected to the connecting plate, and the open end can be inserted into the end of the stranded wire. After insertion, the stranded wire is fixed to conduct electricity by crimping. The solid post and the terminal block are connected by a part with a gradually changing outer diameter.

[0010] In the aforementioned multi-split current-carrying clamp, the multiple terminals are arranged in parallel at intervals, and the angle between the central axis of the terminals and the plane of the connecting plate is R.

[0011] The terminals are parallel to each other and distributed on the same plane. The terminals are spaced apart to reduce interference between the twisted wires. R is the included angle between the terminal and the connecting plate.

[0012] In the aforementioned multi-split current-carrying clamp, at least one reinforcing rib is provided between the solid column and the connecting plate. The reinforcing rib is triangular, and an arc-shaped connection is provided between two adjacent reinforcing ribs and the connecting plate.

[0013] The two right-angled sides of the reinforcing rib connect the side of the connecting plate and the side of the solid column respectively, improving the structural strength. The arc-shaped connection between them can further improve the overall smoothness and also has a certain structural strengthening effect.

[0014] As an optimization, the thickness of the reinforcing ribs and the arc-shaped connecting parts is equal to and less than the thickness of the connecting plate. The bottoms of two adjacent reinforcing ribs and arc-shaped connecting parts are integrated with the connecting plate via a connecting plate. A groove is provided between the connecting plate, the connecting plate, and two adjacent solid columns. The axis of the connecting plate and the axis of the arc-shaped connecting parts are located in the same plane as the axis of the connecting plate. The axis of the reinforcing ribs is located in the same plane as the axis of the stranded wire connecting parts. The outer diameter of the solid column is greater than the thickness of the connecting plate. The solid column is connected to the connecting plate via a connecting part. The outer diameter of the connecting part gradually increases from the end of the connecting plate to the end of the solid column. An arc-shaped reinforcing part is also provided between the solid column, the connecting part, and the connecting plate. When the arc-shaped reinforcing part is located on the inner side, it has an inner chamfer shape, and when it is located on the outer side, it has an outer chamfer shape.

[0015] In the aforementioned multi-split current-carrying clamp, the outer wall of the open end of the terminal is tapered, and the large-diameter end is connected to the middle section of the terminal; and / or, the opening of the open end of the terminal is provided with an easy-entry chamfer.

[0016] The open end has a gradually decreasing outer diameter, while the inner hole is cylindrical with a constant inner diameter. The chamfered design facilitates the insertion of the wire harness.

[0017] Preferably, R=45°, which can accommodate most stranded wire sag conditions.

[0018] In the aforementioned multi-split current-carrying clamp, the plate fixing structure includes a plurality of connecting holes extending through the thickness direction on the connecting plate, the connecting holes being arranged in a uniform array; and / or one side of the connecting plate is rectangular, and the other side is an inverted isosceles trapezoid, with the lower short base coinciding with and being of equal length to one side of the rectangle.

[0019] The connecting plate has evenly distributed connecting holes, which allow bolts and other components to pass through, enabling detachable connections. Multiple connecting holes are provided, allowing for adjustment of the fixing position as needed. The connecting plate is a combination of a rectangle and an isosceles trapezoid, with the width gradually increasing on one side of the stranded wire connection, accommodating the arrangement requirements of multiple stranded wire connections.

[0020] Compared with the prior art, the main features of this utility model are: 1. Multiple stranded wire connection parts are arranged in parallel to realize the design of one-to-many current conduction. The current shunting effect reduces the skin effect of the conductor and reduces the temperature rise during the process.

[0021] 2. The stranded wire connection and the connecting plate form an acute angle, which realizes a smooth transition of the aluminum stranded wire, reduces stress, and improves the overall strength. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram from the front view provided by this utility model; Figure 2 This is a side view diagram provided by this utility model; Figure 3 This is a structural schematic diagram from the rear view provided by this utility model; Figure 4 yes Figure 1 A magnified view of the details at point A in the middle.

[0023] In the figure, 1 is the connecting plate, 2 is the stranded wire connection part, 3 is the terminal block, 4 is the solid column, 5 is the reinforcing rib, 6 is the open end, 7 is the easy-to-enter chamfer, 8 is the large diameter end, 9 is the middle section, 10 is the connecting hole, 11 is the plate fixing structure, 12 is the arc-shaped connection part, 13 is the connecting plate, 14 is the groove, 15 is the connecting part, 16 is the arc-shaped reinforcing part, 17 is the inner chamfer, and 18 is the outer chamfer. Detailed Implementation

[0024] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0025] Specific implementation examples Figures 1-4 As shown, this multi-split current-carrying clamp includes a connecting plate 1 and a plate fixing structure 11 disposed on the connecting plate. N stranded wire connecting parts 2 are arranged side by side at one end of the connecting plate 1. The included angle between the plane where the stranded wire connecting parts 2 and the connecting plate 1 are located is R. In this embodiment, the preferred values ​​of N and R are selected for demonstration, namely N=3 and R=45°.

[0026] Specifically, the wire clamp consists of an integrally connected connecting plate 1 and a stranded wire connecting part 2. The connecting plate 1 is electrically connected to the busbar, and the stranded wire connecting part 2 is electrically connected to the stranded wire. This wire clamp acts as a current carrier, realizing the conductive connection from the busbar to the stranded wire. Furthermore, three stranded wire connecting parts 2 are arranged side by side, realizing a one-to-three current-guiding design. Through the current-splitting effect, the skin effect of the conductor is reduced, and the temperature rise can be reduced by more than 40%. Moreover, the stranded wire connecting part 2 and the connecting plate 1 of this wire clamp form a 45-degree acute angle. Since the connecting plate 1 is generally in a horizontal or vertical state after installation, the stranded wire is connected between the two sets of wire clamps. Due to gravity and in order to realize the tension redundancy of the stranded wire, the stranded wire is generally concave arc-shaped. In order to adapt to the tilt angle of the stranded wire end, the stranded wire connecting part 2 is set to bend relative to the connecting plate 1. The bending direction is adapted to the direction of the stranded wire, realizing a smooth transition of the aluminum stranded wire, reducing stress, and improving the overall strength.

[0027] like Figure 1 , Figure 3 , Figure 4As shown, the stranded wire connection part 2 includes a tubular terminal block 3 with an open upper end. The lower end of the terminal block 3 is closed by a solid column 4 and integrally connected to the connecting plate 1. The outer diameter of the solid column 4 is smaller than the outer diameter of the terminal block 3, and the outer diameter of the connection end between the solid column 4 and the terminal block 3 gradually increases from the lower end to the upper end. Multiple terminals 3 are arranged in parallel at intervals, and the angle between the central axis of the terminal block 3 and the plane of the connecting plate 1 is R. A reinforcing rib 5 is provided on both sides of the solid column 4 and between the solid column 4 and the connecting plate 1. The reinforcing rib 5 is triangular, and an arc-shaped connection part 12 is provided between two adjacent reinforcing ribs 5 and the connecting plate 1. The opening of the open end 6 of the terminal block 3 is provided with an easy-entry chamfer 7. The outer wall of the open end 6 of the terminal block 3 is conical, and the large-diameter end 8 is connected to the middle section 9 of the terminal block 3.

[0028] Specifically, terminal 3 is closed at one end and open at the other. Solid post 4 is connected to connecting plate 1, and open end 6 allows insertion of the stranded wire end. After insertion, the stranded wire is electrically fixed by crimping. The solid post 4 and terminal 3 are connected by a gradually changing outer diameter. All terminals 3 are parallel to each other and distributed on the same plane, with intervals between them to reduce interference between stranded wires. The two right-angled sides of reinforcing rib 5 are connected to the side of connecting plate 1 and the side of solid post 4, respectively, to improve structural strength. An easy-entry chamfer 7 is provided on the inner periphery of the open end 6. This chamfer is specifically an arc surface to facilitate the insertion of the stranded wire end.

[0029] In this embodiment, the thickness of the reinforcing rib 5 and the arc-shaped connecting part 12 are equal and less than the thickness of the connecting plate 1. The bottoms of two adjacent reinforcing ribs 5 and arc-shaped connecting parts 12 are connected to the connecting plate 1 by a connecting plate 13. A groove 14 is provided between the connecting plate 13, the connecting plate 1, and two adjacent solid columns 4. The axis of the connecting plate 13 and the axis of the arc-shaped connecting part 12 are on the same plane as the axis of the connecting plate 1. The axis of the reinforcing rib 5 is on the same plane as the axis of the stranded wire connecting part 2. The outer diameter of the solid column 4 is greater than the thickness of the connecting plate 1. The solid column 4 is connected to the connecting plate 1 by a connecting part 15. The outer diameter of the connecting part 15 gradually increases from the end of the connecting plate to the end of the solid column. An arc-shaped reinforcing part 16 is also provided between the solid column 4, the connecting part 15, and the connecting plate 1. When the arc-shaped reinforcing part 16 is located on the inner side, it is in the shape of an inner chamfer 17. When it is located on the outer side, it is in the shape of an outer chamfer 18.

[0030] like Figure 1 , Figure 3 As shown, one side of the connecting plate 1 is rectangular, and the other side is an isosceles trapezoid, with the shorter base side coinciding with and being the same length as one side of the rectangle. The plate fixing structure 11 includes a plurality of connecting holes 10 extending along the thickness direction on the connecting plate 1, and the connecting holes 10 are arranged in a uniform array.

[0031] Specifically, the connecting plate 1 has a shape that is a combination of a rectangle and an isosceles trapezoid, which means that the width of one side of the stranded wire connection part 2 gradually increases, accommodating the arrangement requirements of multiple stranded wire connection parts 2. The connecting plate 1 has evenly arranged connecting holes 10, which can be used for bolts and the like to pass through, so as to achieve a detachable connection. Multiple connecting holes 10 are provided, and the fixing position can be adjusted according to specific conditions.

[0032] Specific working principle: During installation, it can be fixed to the mounting column by L-shaped corner plate. Bolts pass through the connection hole 10 of the connecting plate 1 and the connection hole of the corner plate to achieve detachable fixing. The extension direction of the terminal 3 is between vertically downward and towards another set of wire clamps. The end of the stranded wire is inserted into the terminal 3 and conductive connection is achieved by crimping. The stranded wire is connected to each terminal 3 in the same way.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A multi-split current-carrying clamp, characterized in that, It includes a connecting plate (1) and a plate fixing structure (11) set on the connecting plate (1). N stranded wire connecting parts (2) are arranged side by side at one end of the connecting plate (1), where N≥2. The angle between the stranded wire connecting parts (2) and the plane where the connecting plate (1) is located is R, where 0°< R<90°.

2. The multi-split current-carrying clamp according to claim 1, characterized in that, The stranded wire connection part (2) includes a tubular terminal block (3) with an open upper end. The lower end of the terminal block (3) is closed by a solid column (4) and integrally connected to the connecting plate (1). The outer diameter of the solid column (4) is smaller than the outer diameter of the terminal block (3), and the outer diameter of the connection end between the solid column (4) and the terminal block (3) gradually increases from the bottom to the top.

3. The multi-split current-carrying clamp according to claim 2, characterized in that, The multiple terminals (3) are arranged in parallel at intervals, and the angle between the central axis of the terminals (3) and the plane where the connecting plate (1) is located is R.

4. The multi-split current-carrying clamp according to claim 2, characterized in that, At least one reinforcing rib (5) is provided between the solid column (4) and the connecting plate (1).

5. The multi-split current-carrying clamp according to claim 4, characterized in that, The reinforcing rib (5) is triangular, and an arc-shaped connection (12) is provided between two adjacent reinforcing ribs (5) and the connecting plate (1).

6. The multi-split current-carrying clamp according to claim 5, characterized in that, The thickness of the reinforcing rib (5) and the arc-shaped connecting part (12) is equal and less than the thickness of the connecting plate (1). The bottom of two adjacent reinforcing ribs (5) and arc-shaped connecting parts (12) are connected to the connecting plate (1) by a connecting plate (13). A groove (14) is provided between the connecting plate (13), the connecting plate (1), and two adjacent solid columns (4). The axis of the connecting plate (13) and the axis of the arc-shaped connecting part (12) are on the same plane as the axis of the connecting plate (1). The axis of the reinforcing rib (5) is on the same plane as the axis of the stranded wire connecting part (2).

7. The multi-split current-carrying clamp according to claim 2, characterized in that, The outer diameter of the solid column (4) is greater than the thickness of the connecting plate (1). The solid column (4) is connected to the connecting plate (1) through the connecting part (15). The outer diameter of the connecting part (15) gradually increases from the end of the connecting plate (1) to the end of the solid column (4). An arc-shaped reinforcing part (16) is also provided between the solid column (4), the connecting part (15) and the connecting plate (1).

8. The multi-split current-carrying clamp according to claim 2, characterized in that, The outer wall of the open end (6) of the terminal (3) is tapered, and the large diameter end (8) is connected to the middle section (9) of the terminal (3) and / or the opening of the open end (6) of the terminal (3) is provided with an easy-entry chamfer (7).

9. The multi-split current-carrying clamp according to claim 1, characterized in that, The R = 45°.

10. The multi-split current-carrying clamp according to any one of claims 1-9, characterized in that, The plate fixing structure includes a plurality of connecting holes (10) through the thickness direction on the connecting plate (1). The connecting holes (10) are arranged in a uniform array and / or the lower end of the connecting plate (1) is rectangular and the upper end is an inverted isosceles trapezoid. The short bottom side of the lower end coincides with one side of the rectangle and is of equal length.

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