CN119905851A

CN119905851A - A large cross-sectional area power cable laid at 90 degrees

Info

Publication number: CN119905851A
Application number: CN202411964223.XA
Authority: CN
Inventors: 郭江华; 冷昊洺; 蔡征; 胡波
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2024-12-30
Filing date: 2024-12-30
Publication date: 2025-04-29

Abstract

The present invention relates to the technical field of power cables, and discloses a large-section power cable laid at 90 degrees, including a conductor body and a connector electrically connected to the conductor body, the tail attachment of the connector is provided with a 90-degree bending portion; the conductor body is provided with a 90-degree bending portion at a position corresponding to the bending portion, and a pressure plate is provided on the bending portion, and the pressure plate is used to press the conductor body onto the tail attachment. The present invention arranges a bending clamp tail attachment in the connector designed for the power cable, and the tail attachment is provided with a 90-degree bending portion, so that the conductor body is bent inside the tail attachment, and the bending conductor is fixed by the pressure plate, and the stress load generated by the bending of the large-section conductor is borne, so as to achieve the function of fixing the large-section conductor, and the crimping contact body in the connector is protected from the tensile force, thereby improving the connection reliability of the connector, and meeting the requirements for laying and using large-section power cables in narrow spaces.

Description

Ninety-degree laid large-sectional area power cable

Technical Field

The invention relates to the technical field of power cables, and discloses a ninety-degree laid large-sectional area power cable.

Background

In order to meet the requirement of a novel military aircraft on a larger design space, more stringent requirements are put forward on the laying of airborne cables, particularly on the laying of large-sectional area wire cables. At present, cabling work is performed with the minimum bending radius 6D as a limit. When encountering narrow spaces, the laying is generally completed by moving on-board equipment, leaving enough space. However, this arrangement compresses the design space of the functional device to some extent. Therefore, a solution that can complete cabling in a narrow space is urgently needed.

Disclosure of Invention

The invention aims to provide a ninety-degree laid large-sectional area power cable, which can prevent a pressing contact body in a connector from being under the action of tension, improves the connection reliability of the connector, and can meet the requirements of laying and using the large-sectional area power cable in a narrow space.

In order to achieve the technical effects, the technical scheme adopted by the invention is as follows:

A ninety-degree laid large-sectional area power cable comprises a wire body and a connector electrically connected with the wire body, wherein a ninety-degree bending part is arranged at the tail accessory of the connector, the wire body is bent at 90 degrees at the position corresponding to the bending part, a pressing plate is arranged on the bending part, and the pressing plate is used for pressing the wire body on the tail accessory.

Further, the lead body is laid with a 2D bend radius inside the tail attachment.

Further, the wire body is formed by 1330 nickel-plated copper wires with the thickness of 0.254mm in a stranding mode.

Further, the pressing plate is fixed on the bending part of the tail accessory through a screw.

Further, a filling layer is arranged between the pressing plate of the tail accessory and the wire body, and the filling layer is used for adjusting the wire outlet direction of the wire body so that the wire body is parallel to the wire outlet axis of the tail accessory.

Further, an insulating heat-shrinkable sleeve is sleeved on the outer wall of the tail accessory, and the insulating heat-shrinkable sleeve extends from the tail accessory to a position covering the pressing plate.

Further, the contact body welding cylinder termination mode of the connector is crimping.

Further, the other end of the wire body, which is far away from the connector, is provided with a wire connector.

Compared with the prior art, the cable connector has the beneficial effects that the bent wire tail accessory is arranged on the cable connector, the ninety-degree bending part is arranged on the tail accessory, so that the wire body is bent inside the tail accessory, and the bent wire is fixed through the pressing plate, so that the stress load generated by bending the large-section wire is born, the effect of fixing the large-section wire is achieved, the press-fit contact body in the connector is prevented from being under the action of tension, the connection reliability of the connector is improved, and the requirements of laying and using the large-section power cable in a narrow space can be met.

Drawings

FIG. 1 is a schematic diagram of a power cable with a large cross-sectional area laid ninety degrees in an embodiment;

Fig. 2 is a schematic view of a mounting structure of a wire body in a tail accessory according to an embodiment;

FIG. 3 is a schematic diagram of a tail attachment in an embodiment;

FIG. 4 is a schematic diagram showing the positional relationship between the platen and the filler layer in an embodiment;

The wire comprises a wire body 1, a connector 2, a tail accessory 3, a bending part 301, a pressing plate 302, a pressing plate 303, a screw 4, a filling layer 5, an insulating heat-shrinkable sleeve and a wire joint 6.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings. It should not be construed that the scope of the above subject matter of the present invention is limited to the following embodiments, and all techniques realized based on the present invention are within the scope of the present invention.

Examples

Referring to fig. 1-4, a ninety-degree laid large-sectional area power cable comprises a wire body 1 and a connector 2 electrically connected with the wire body 1, wherein a ninety-degree bending part 301 is arranged on a tail accessory 3 of the connector 2, the wire body 1 is bent at 90 degrees at a position corresponding to the bending part 301, a pressing plate 302 is arranged on the bending part 301, and the pressing plate 302 is used for pressing the wire body 1 on the tail accessory 3.

In this embodiment, the connector 2 designed by the power cable is provided with the bent wire tail accessory 3, and the tail accessory 3 is provided with the ninety-degree bending part 301, so that the wire body 1 is bent inside the tail accessory 3 and fixed to the bent wire through the pressing plate 302, and the stress load generated by bending the large-section wire is born, so that the effect of fixing the large-section wire is achieved, the pressing contact body in the connector 2 is prevented from being under the action of pulling force, the connection reliability of the connector 2 is improved, and the requirements of laying and using the large-section power cable in a narrow space can be met.

In this embodiment, as shown in fig. 2, the wire body 1 is laid with a 2D bending radius inside the tail accessory 3, so as to implement ninety-degree laying of the cable, and the minimum bending radius of the cable laying reaches 2D, thereby breaking through the limitation of the minimum bending radius 6D of the traditional cable laying, and providing a new solution for laying the cable in a narrow space.

In this embodiment, the wire body 1 is formed by twisting 1330 nickel-plated copper wires with a diameter of 0.254mm, so as to form a flexible wire with a large cross-section, and the bending radius of the wire with a large cross-section is up to 2D by means of the bent wire tail accessory 3.

In this embodiment, the pressing plate 302 is fixed on the bending portion 301 of the tail accessory 3 by the screw 303, so as to realize detachable connection of the pressing plate 302, thereby facilitating disassembly, maintenance and replacement of the wire body 1, and ensuring close contact between the pressing plate 302 and the wire body 1, so as to effectively disperse stress generated when the wire is bent.

In this embodiment, a filling layer 4 is disposed between the pressing plate 302 of the tail accessory 3 and the wire body 1, and the filling layer 4 is used for adjusting the wire outlet direction of the wire body 1, so that the wire body 1 is parallel to the wire outlet axis of the tail accessory 3. After the wire body 1 is pressed on the tail accessory 3 by the pressing plate 302, the wire body 1 is reliably fixed, so that the wire body 1 does not shake, the tail accessory 3 can bear the tension of a cable, the contact body is protected, and meanwhile, the fact that the wire at the inner bending part of the tail accessory 3 is not subjected to alternating load can be further ensured, so that the problem that the wire body 1 is damaged due to fatigue is avoided.

In this embodiment, the outer wall of the tail accessory 3 is sleeved with an insulating heat-shrinkable sleeve 5, and the insulating heat-shrinkable sleeve 5 extends from the tail accessory 3 to a position covering the pressing plate 302. When the insulating heat-shrinkable sleeve 5 is installed, the insulating heat-shrinkable sleeve is tightly attached to the outer surfaces of the tail accessory 3 and the pressing plate 302 through heat shrinkage, a uniform and firm protective layer is formed, additional insulating protection can be provided, and the problem of electric leakage in the use process of the cable is prevented. In addition, the insulating heat-shrinkable sleeve 5 has good weather resistance and chemical corrosion resistance, can adapt to various severe environmental conditions, improves the safety of cable laying, enhances the reliability of the whole cable, and prolongs the service life of the cable.

In this embodiment, the contact welding cylinder of the connector 2 is in a press-connection manner. By optimizing the welding cylinder structure of the contact body of the electric connector 2, the termination mode is changed from welding to crimping. In the actual operation process, the crimping strength of the wire and the contact body can be controlled by setting the crimping height, the controllability of the terminating quality of the wire and the contact body is improved, the risk caused by uncontrollable welding quality is eliminated, the outfield processing and maintenance are more convenient, the installation and maintenance are convenient, and the method is suitable for the development needs of a host.

In this embodiment, the other end of the wire body 1 far away from the connector 2 is provided with a wire connector 6, so as to satisfy the reliable connection and transmission of the power cable.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The ninety-degree laid large-sectional area power cable is characterized by comprising a wire body (1) and a connector (2) electrically connected with the wire body (1), wherein a ninety-degree bending part (301) is arranged on a tail accessory (3) of the connector (2), the wire body (1) is bent at 90 degrees at a position corresponding to the bending part (301), a pressing plate (302) is arranged on the bending part (301), and the pressing plate (302) is used for pressing the wire body (1) on the tail accessory (3).

2. The ninety-degree laid large cross-sectional area power cable of claim 1, wherein the wire body (1) is laid inside the tail accessory (3) with a 2D bend radius.

3. A ninety-degree laid large cross-sectional area power cable according to claim 2, wherein the wire body (1) is stranded from 1330 0.254mm nickel plated copper wires.

4. The ninety-degree laid large cross-sectional area power cable of claim 1, wherein the pressure plate (302) is secured to the bend (301) of the tail attachment (3) by screws (303).

5. The ninety-degree laid large cross-sectional area power cable of claim 1, wherein a filler layer (4) is disposed between the pressure plate (302) of the tail accessory (3) and the wire body (1), and the filler layer (4) is used for adjusting the wire outlet direction of the wire body (1) so that the wire body (1) and the wire outlet axis of the tail accessory (3) are kept parallel.

6. The ninety-degree laid large cross-sectional area power cable of claim 1, wherein the outer wall of the tail accessory (3) is jacketed with an insulating heat shrink (5), the insulating heat shrink (5) extending from the tail accessory (3) to a position covering the pressure plate (302).

7. The ninety-degree lay large cross-sectional area power cable of claim 1, wherein the contact weld barrel termination of the connector (2) is crimp.

8. A ninety-degree laid large cross-sectional area power cable according to claim 1, characterized in that the other end of the conductor body (1) remote from the connector (2) is provided with a conductor tab (6).