Large-sectional-area power cable laid at 90 degrees

Abstract

The invention relates to the technical field of power cables, and discloses a 90-degree laid large-sectional-area power cable which comprises a wire body and a connector electrically connected with the wire body, and a 90-degree bending part is arranged on a tail accessory of the connector; the position, corresponding to the bending part, of the wire body is bent by 90 degrees, a pressing plate is arranged on the bending part, and the pressing plate is used for pressing the wire body on the tail accessory. According to the invention, the bent and clamped wire tail accessory is arranged on the connector designed for the power supply cable, and the tail accessory is provided with the 90-degree bending part, so that the wire body is bent in the tail accessory, the bent wire is fixed through the pressing plate, the stress load generated by bending of the large-section wire is borne, and the effect of fixing the large-section wire is achieved; according to the utility model, the crimping contact body in the connector can be prevented from being pulled, the connection reliability of the connector is improved, and the requirements of laying and using a large-sectional-area power cable in a narrow space can be met.

Description

Technical Field

[0001] The invention relates to the technical field of power cables and discloses a power cable with a large cross-sectional area which is laid at ninety degrees. Background Art

[0002] In order to meet the needs of new military aircraft for larger designable space, more stringent requirements are put forward for the laying of airborne cables, especially the laying of cables with large cross-sectional areas. At present, the laying of cables is limited by the minimum bending radius of 6D. When encountering narrow spaces, the laying is generally completed by moving the airborne equipment to leave enough space. However, this laying method compresses the design space of functional equipment to a certain extent. Therefore, a solution that can complete cable laying in narrow spaces is urgently needed. Summary of the invention

[0003] The purpose of the present invention is to provide a large-sectional area power cable laid at 90 degrees, which can protect the crimping contact body in the connector from tension, improve the connection reliability of the connector, and meet the requirements of laying and using large-sectional area power cables in narrow spaces.

[0004] In order to achieve the above technical effects, the technical solution adopted by the present invention is:

[0005] A large-cross-sectional power cable laid at 90 degrees comprises a conductor body and a connector electrically connected to the conductor body, wherein the tail attachment of the connector is provided with a 90-degree bend; the conductor body is provided with a 90-degree bend at a position corresponding to the bend, and a pressure plate is provided on the bend, and the pressure plate is used to press the conductor body tightly onto the tail attachment.

[0006] Furthermore, the conductor body is laid inside the tail attachment with a 2D bending radius.

[0007] Furthermore, the conductor body is formed by twisting 1330 0.254 mm nickel-plated copper wires.

[0008] Furthermore, the pressing plate is fixed to the bent portion of the tail attachment by means of screws.

[0009] Furthermore, a filling layer is provided between the pressure plate of the tail accessory and the wire body, and the filling layer is used to adjust the outlet direction of the wire body so that the wire body and the axis of the outlet port of the tail accessory remain parallel.

[0010] Furthermore, an outer wall of the tail attachment is provided with an insulating heat shrinkable sleeve, and the insulating heat shrinkable sleeve extends from the tail attachment to a position covering the pressing plate.

[0011] Furthermore, the contact body welding cylinder of the connector is terminated by crimping.

[0012] Furthermore, a wire connector is provided at the other end of the wire body away from the connector.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a bending clamp wire tail accessory in the cable connector, and the tail accessory is provided with a 90-degree bending portion, so that the wire body is bent inside the tail accessory, and the bent wire is fixed by a pressure plate, which withstands the stress load generated by the bending of the large-section wire, thereby achieving the effect of fixing the large-section wire, and can protect the crimping contact body in the connector from tension, thereby improving the connection reliability of the connector, and can meet the requirements for laying and using large-section power cables in narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a large-section power cable laid at 90 degrees in the embodiment;

[0015] Figure 2 This is a schematic diagram of the installation structure of the conductor body in the tail attachment in the embodiment;

[0016] Figure 3 It is a structural schematic diagram of the tail attachment in the embodiment;

[0017] Figure 4 Schematic diagram of the positional relationship between the pressing plate and the filling layer in the embodiment;

[0018] Among them, 1. wire body; 2. connector; 3. tail accessories; 301. bending part; 302. pressure plate; 303. screw; 4. filling layer; 5. insulating heat shrink tubing; 6. wire joint. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the embodiments and drawings. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0020] Example

[0021] See also Figure 1-Figure 4 A large-cross-sectional power cable laid at 90 degrees includes a conductor body 1 and a connector 2 electrically connected to the conductor body 1, wherein the tail accessory 3 of the connector 2 is provided with a 90-degree bend 301; the conductor body 1 is set to be bent at 90 degrees at a position corresponding to the bend 301, and a pressure plate 302 is provided on the bend 301, and the pressure plate 302 is used to press the conductor body 1 onto the tail accessory 3.

[0022] In this embodiment, the connector 2 designed for the power cable is provided with a bending clamp wire tail accessory 3, and the tail accessory 3 is provided with a ninety-degree bending portion 301, so that the wire body 1 is bent inside the tail accessory 3, and the bent wire is fixed by the pressure plate 302, which bears the stress load generated by the bending of the large-section wire, thereby achieving the function of fixing the large-section wire, and can protect the crimping contact body in the connector 2 from tension, thereby improving the connection reliability of the connector 2, and can meet the requirements of laying and using large-section power cables in narrow spaces.

[0023] In this embodiment, Figure 2 As shown, the conductor body 1 is laid inside the tail accessory 3 with a 2D bending radius to achieve 90-degree laying of the cable. The minimum bending radius of the cable laying reaches 2D, breaking through the limitation of the minimum bending radius of 6D for traditional cable laying, and providing a new solution for laying cables in narrow spaces.

[0024] In this embodiment, the conductor body 1 is formed by twisting 1330 0.254 mm nickel-plated copper wires to form a flexible large-sectional area conductor, and the bending radius of the large-sectional area conductor is achieved to reach 2D with the help of the bending clamp tail accessory 3.

[0025] In this embodiment, the pressure plate 302 is fixed to the bending portion 301 of the tail attachment 3 by screws 303, realizing a detachable connection of the pressure plate 302, thereby facilitating the disassembly, maintenance and replacement of the wire body 1, and ensuring close contact between the pressure plate 302 and the wire body 1, thereby effectively dispersing the stress generated when the wire is bent.

[0026] In this embodiment, a filling layer 4 is provided between the pressure plate 302 of the tail attachment 3 and the conductor body 1, and the filling layer 4 is used to adjust the outlet direction of the conductor body 1 so that the conductor body 1 and the outlet axis of the tail attachment 3 remain parallel. After the conductor body 1 is pressed against the tail attachment 3 by the pressure plate 302, the conductor body 1 is reliably fixed so that the conductor body 1 does not shake; and the tension of the cable itself can be borne by the tail attachment 3, while protecting the contact body, it can further ensure that the conductor of the bent part inside the tail attachment 3 is not affected by the alternating load, thereby avoiding the problem of fatigue damage of the conductor body 1.

[0027] In this embodiment, the outer wall of the tail attachment 3 is provided with an insulating heat shrinkable sleeve 5, and the insulating heat shrinkable sleeve 5 extends from the tail attachment 3 to the position covering the pressing plate 302. When installed, the insulating heat shrinkable sleeve 5 shrinks by heating and fits tightly on the outer surface of the tail attachment 3 and the pressing plate 302 to form a uniform and firm protective layer, which can provide additional insulation protection and prevent leakage problems during the use of the cable. In addition, the insulating heat shrinkable sleeve 5 also has good weather resistance and chemical corrosion resistance, and can adapt to various harsh environmental conditions, which not only improves the safety of cable laying, enhances the overall reliability of the cable, but also prolongs the service life of the cable.

[0028] In this embodiment, the termination method of the contact body welding cylinder of the connector 2 is crimping. By optimizing the welding cylinder structure of the contact body of the electrical connector 2, the termination method is changed from welding to crimping. In actual operation, the crimping strength between the wire and the contact body can be controlled by setting the crimping height, which improves the controllability of the termination quality of the wire and the contact body and eliminates the risks caused by uncontrollable welding quality; it also makes field processing and maintenance more convenient, facilitates installation and maintenance, and meets the needs of host development.

[0029] In this embodiment, a wire connector 6 is provided at the other end of the wire body 1 away from the connector 2 to ensure reliable connection and transmission of the power cable.

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

Claims

1. A large cross-sectional area power cable laid at 90 degrees, characterized in that: The invention comprises a wire body (1) and a connector (2) electrically connected to the wire body (1), wherein the tail attachment (3) of the connector (2) is provided with a 90-degree bending portion (301); the wire body (1) is provided with a 90-degree bending portion at a position corresponding to the bending portion (301), and a pressing plate (302) is provided on the bending portion (301), and the pressing plate (302) is used to press the wire body (1) onto the tail attachment (3).

2. The 90-degree laid large cross-sectional area power cable according to claim 1, characterized in that: The conductor body (1) is laid inside the tail attachment (3) with a 2D bending radius.

3. The 90-degree laid large cross-sectional area power cable according to claim 2, characterized in that: The conductor body (1) is formed by twisting 1330 nickel-plated copper wires with a diameter of 0.254 mm.

4. The 90-degree laid large cross-sectional area power cable according to claim 1, characterized in that: The pressing plate (302) is fixed to the bent portion (301) of the tail attachment (3) by means of screws (303).

5. The 90-degree laid large cross-sectional area power cable according to claim 1, characterized in that: A filling layer (4) is provided between the pressure plate (302) of the tail accessory (3) and the conductor body (1), and the filling layer (4) is used to adjust the conductor outlet direction of the conductor body (1) so that the conductor body (1) and the conductor outlet axis of the tail accessory (3) remain parallel.

6. The 90-degree laid large cross-sectional area power cable according to claim 1, characterized in that: The outer wall of the tail attachment (3) is provided with an insulating heat shrinkable sleeve (5), and the insulating heat shrinkable sleeve (5) extends from the tail attachment (3) to a position covering the pressing plate (302).

7. The 90-degree laid large cross-sectional area power cable according to claim 1, characterized in that: The contact body welding tube of the connector (2) is terminated in a crimping manner.

8. The 90-degree laid large cross-sectional area power cable according to claim 1, characterized in that: A wire connector (6) is provided at the other end of the wire body (1) away from the connector (2).

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