A wire harness adapter and a wire harness system structure of a vehicle-mounted phased array radar array

Abstract

The application relates to a wire harness adapter and a wire harness system structure of a vehicle-mounted phased array radar array surface, and belongs to the field of cable layout and wiring of photoelectric signal interconnection. The wire harness adapter comprises a fiber link, a radio frequency link and a power supply link. The communication and control link is formed by the wire harness adapter and wire harness components at two ends; the fiber link is formed by the wire harness adapter and optical cable components at two ends; the radio frequency link is formed by a passive power divider and radio frequency cable components at two ends; and the power supply link is formed by a general bus bar connecting cable components at two ends. The wire harness of each link is independent in path and can form an independent cable component. The wire harness is arranged at a reasonable distance in the array surface through path planning and the wire harness adapter and other parts, coupling is reduced, and electromagnetic interference is effectively eliminated. The application can greatly improve the reliability, maintainability and replaceability of photoelectric signal interconnection, and effectively shorten the assembly and production cycle of a two-dimensional active phased array array surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cable layout and wiring of optical-electrical signal interconnection, and more particularly, to a wire harness system of a vehicle-mounted two-dimensional active phased array radar array. BACKGROUND

[0002] The array of a vehicle-mounted two-dimensional active phased array radar is composed of hundreds of T / R components, digital processing components, etc., and each component is usually connected with each subsystem for digital, radio frequency, optical signal transmission through wires, radio frequency cables and optical fibers. The cables are of various types, large in quantity, and have narrow wiring space and high requirements. Due to the design requirements of high integration and light weight, the coupling degree of multiple physical fields such as telecommunications, structure and heat dissipation is increased, and the layout and wiring are more complex. This brings a series of problems such as overlapping of various cable paths, mutual mixing, difficulty in processing, poor heat dissipation efficiency, difficulty in controlling electromagnetic interference, and reduction of system reliability and maintainability.

[0003] In addition, in order to ensure the consistency of signal transmission, the same level cables need to be designed with the same length. However, due to the large difference in distance between the cable starting point and each microwave component, the redundancy difference is large. And the system has high requirements on phase consistency, which also puts high requirements on cable bending and storage. Therefore, improper wiring path often leads to difficulties in implementation or signal transmission problems on site.

[0004] In addition, the array size is large, the distance between the microwave components and the subsystem is far, and the span is large. If the cable is adopted in a one-pass-to-bottom manner, the cable can be maintained poorly and does not have interchangeability due to multiple splicing, bundling, fixing and frame inner wall hole passing.

[0005] Therefore, it is urgent to adopt a wire harness system structure which overcomes the above-mentioned shortcomings. SUMMARY

[0006] Technical problems to be solved

[0007] In order to avoid the shortcomings of the prior art, the present application provides a wire harness system structure suitable for optical-electrical interconnection of a vehicle-mounted phased array radar array. The reliability, maintainability and replaceability of the cable part can be greatly improved, and the assembly production cycle of a large two-dimensional active phased array array can be effectively shortened.

[0008] Technical scheme

[0009] A wire harness adapter, characterized in that it comprises a base, a fixing sheet and a strap, the base is M-shaped, a plurality of threaded holes for mounting the fixing sheet are arranged on the base, two protruding sheets are arranged on the side surface of the base, a circular hole for mounting an optical fiber adapter and a square hole for mounting a control signal socket are arranged on each protruding sheet, and a hole for fixing the strap is arranged on the fixing sheet.

[0010] The further technical scheme of the present application is that two straps are fixed on each fixed sheet.

[0011] The further technical scheme of the present application is that the base and the fixed sheet are made of aluminum.

[0012] A wire harness system structure of a vehicle-mounted phased array radar array panel, characterized in that it comprises a power supply link wire harness, a radio frequency link wire harness, a signal and optical fiber link wire harness;

[0013] The power supply link wire harness comprises a main wire harness, branch wire harnesses and a wire harness adapter, wherein the main wire harness is arranged at the leftmost and rightmost sides of the frame, and the branch wire harnesses are arranged transversely from both ends to the center of each microwave module; the wire harness adapter solidifies the path and fixes the wire harness;

[0014] The radio frequency link wire harness comprises a main wire harness, branch wire harnesses and a passive power divider, wherein the main wire harness is arranged at the right side of the frame, the branch wire harnesses are connected to the input ports of the passive power divider, and the output ports of the passive power divider are connected to the mixed socket of the microwave assembly;

[0015] The signal and optical fiber link wire harness comprises a main wire harness, branch wire harnesses and a wire harness adapter, wherein the main wire harness is arranged at the central axis of the frame, and the branch wire harnesses are arranged transversely from the center to both ends of each wire harness adapter; the input of the wire harness adapter is the branch wire harness of the signal and optical fiber link wire harness; the output is connected to the mixed socket of the microwave assembly through the optical fiber adapter seat or the control signal socket.

[0016] The further technical scheme of the present application is that the wire harness adapter is installed on the liquid cooling plate.

[0017] The further technical scheme of the present application is that the passive power divider is installed on the liquid cooling plate.

[0018] Advantages

[0019] The wire harness system structure of the vehicle-mounted phased array radar array panel provided by the present application designs the channels and paths of the radio frequency, optical fiber, communication control and power supply links respectively, separates the various types of wire harnesses in space and does not mix the paths, can greatly reduce the cable redundancy, reasonably segments the wire harnesses, realizes the interchangeability of the cables and improves the maintainability, and finally reduces the crosstalk between the cables, reduces the processing difficulty, improves the quality of the wire harnesses and reduces the coupling degree of the various types of wire harnesses.

[0020] 1) The paths of the various types of cables are separated, and the electromagnetic interference is effectively eliminated;

[0021] 2) The cable components are realized, the cables can be processed in advance, and the manufacturing cycle is shortened by parallel processing with the structure frame;

[0022] 3) The cable redundancy is greatly reduced, the cost is reduced and the assembly is facilitated;

[0023] 4) Reducing the degree of coupling with the main frame;

[0024] 5) Cable / fiber assembly of uniform size, ensuring versatility;

[0025] 6) Cable replacement can be achieved in a short time during troubleshooting, maintenance or technical upgrade. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0027] Figure 1 Pathway diagram for the power supply link of the harness;

[0028] Figure 2 Pathway diagram for the RF link of the harness;

[0029] Figure 3 Pathway diagram for the signal and fiber link of the harness;

[0030] Figure 4 Usage diagram for the harness adapter;

[0031] Figure 5 Structure diagram for the harness adapter;

[0032] Figure 6 Usage diagram for the passive power divider;

[0033] Figure 7 Structure diagram for the passive power divider;

[0034] In the drawings: 1 - main frame; 2 - main harness of the power supply link; 3 - branch harness of the power supply link; 4 - harness adapter; 5 - main harness of the RF link; 6 - passive power divider; 7 - main harness of the signal and fiber link; 8 - branch harness of the signal and fiber link; 10 - fiber adapter; 11 - socket for control signals; 12 - socket for microwave assembly; 13 - first branch pathway; 14 - second branch pathway; 15 - third branch pathway; 16 - base of the harness adapter; 17 - fixing plate of the harness adapter; 18 - cable tie; 19 - passive power divider; 21 - input port of the passive power divider; 22 - output port of the passive power divider. The reference number 9 in Figure 4 is deleted because it is repeated with the previous 4 harness adapter. The reference number 20 in Figure 6 is deleted because it is repeated with the previous 12 socket for microwave assembly. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0036] A wire harness system structure suitable for the photoelectric interconnection of a vehicle-mounted phased array radar array surface, comprising a wire harness system structure and the wire harness and wire harness adapters, passive power division devices and the like required to implement the architecture. The overall wire harness system includes power supply links, radio frequency links, signal and optical fiber links. Among them, the power supply link of the wire harness is used for power supply of the microwave assembly; the radio frequency link, signal and optical fiber link channels of the wire harness are used for communication and control of the microwave assembly and the signal processing, frequency integration and other subsystems. The link cables of the wire harness system disclosed by the present application are independent in path and can form independent cable assemblies, which are laid in the array surface at a reasonable distance to avoid mixing and effectively eliminate electromagnetic interference.

[0037] As shown in Figure 1 , the main channel 2 of the power supply link of the wire harness is at the leftmost and rightmost sides of the frame 1, and the branch wire harness 3 is arranged transversely from both ends to the central microwave module. Wire harness adapters 4 are used to solidify the path and fix the wire harness.

[0038] As shown in Figure 2 , the main channel 5 of the radio frequency link of the wire harness is on the right side of the frame 1, and the passive power division device 6 is accessed from the right side. Wire harness adapters 4 are used to solidify the path and fix the wire harness.

[0039] As shown in Figure 3 , the main channel 7 of the signal and optical fiber link of the wire harness is at the central axis position of the frame 1, and the branch wire harness 8 is arranged transversely from the center to the left and right ends to each wire harness adapter. Wire harness adapters 4 are used to solidify the path and fix the wire harness.

[0040] As shown in Figure 4 , the wire harness adapter 9 can realize cable adapter, path separation of various cables, and function of fixing the wire harness. The cables for different subsystems are collected and then adapted into the microwave assembly, arranged at one end close to the microwave assembly, adjacent to the socket 12 accessed to the microwave assembly. Two pairs of optical fiber adapter seats 10 and communication control sockets 11 are installed. At the same time, as the fixing point of the wire harness branch, it can provide three paths: the first branch path 13, the second branch path 14, and the third branch path 15.

[0041] As shown in Figure 5As shown in the figure, the wire harness adapter comprises a base 16, a fixing sheet 17, and a cable tie 18. The base 16 is in the shape of M, and a plurality of threaded holes for mounting the fixing sheet 17 are arranged on the base 16. Two protruding sheets are arranged upward on the side of the base 16, and a round hole for mounting the fiber adapter 10 and a square hole for mounting the control signal socket 11 are arranged on each of the protruding sheets, respectively. The wire harness is fixed on the fixing sheet 17 by using the cable tie 18. The base 16 and the fixing sheet 17 are made of aluminum. The input of the wire harness adapter is the cable assembly and the optical cable assembly led out by the signal distribution system, and the output is connected to the mixed socket of the microwave assembly through the cable / optical cable. Further, the adapter, the cable, and the socket can form a wire harness assembly. The wire harness adapter is mounted on the liquid cooling plate.

[0042] As shown in the figure, Figure 6 The passive power division device 19 can realize the functions of radio frequency transmission, power division, and cable redundancy elimination. In order to ensure the minimum insertion loss of the signal, all the wires need to be laid along the nearest path. The passive power division device 19 is used for the distribution of one-to-many of radio frequency signals and the elimination of the redundancy of radio frequency cables, and is arranged near one end of the socket 20 connected to the microwave assembly. The input port 21 is on the right side, and the output port 22 is opposite to the socket connected to the microwave assembly. The input of the passive power division device is the radio frequency cable assembly led out by the signal distribution system, and the output is connected to the mixed socket of the microwave assembly through the radio frequency cable assembly.

[0043] As shown in the figure, Figure 7 The passive power division device 19 comprises a shell, a cover plate, a printed board, and an SMA socket. The shell and the cover plate are made of aluminum. The shell and the cover plate are made of aluminum. The passive power division device is mounted on the liquid cooling plate.

[0044] The passive power division device 19 eliminates the redundancy of the radio frequency cable by designing the printed lines of different lengths on the PCB board.

[0045] The channel design inside the liquid cooling plate needs to avoid the positions of the fixing screws of the wire harness adapter and the passive power division device. In order to ensure the reliability of the cable, all the link designs need to avoid the heat source and the liquid cooling pipeline.

[0046] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed in the present application, and these modifications or replacements should be covered within the protection scope of the present application.

Claims

1. A wire harness system structure for a vehicular phased array radar array, characterized by The power supply link bundle, the radio frequency link bundle, the signal and optical fiber link bundle; The power supply link bundle includes a main bundle, branch bundles and a bundle adapter, wherein the main bundle is at the leftmost and rightmost sides of the frame, the branch bundles are arranged from both ends to the center of each microwave module, and the bundle adapter fixes the path and the bundle; The radio frequency link bundle includes a main bundle, branch bundles and a passive power divider, wherein the main bundle is at the right side of the frame, the branch bundles are connected to the input of the passive power divider, and the output of the passive power divider is connected to the mixed socket of the microwave assembly; The signal and optical fiber link bundle includes a main bundle, branch bundles and a bundle adapter, wherein the main bundle is at the central axis of the frame, the branch bundles are arranged from the center to both ends of each bundle adapter, and the input of the bundle adapter is the branch bundle of the signal and optical fiber link bundle, and the output is connected to the mixed socket of the microwave assembly through the optical fiber adapter or the control signal socket.

2. The wire harness system structure for a vehicular phased array radar array according to claim 1, characterized by: The bundle adapter includes a base (16), a fixing sheet (17) and a cable tie (18), the base (16) is M-shaped, a plurality of threaded holes for mounting the fixing sheet (17) are arranged on the base (16), two protruding sheets are arranged on the side of the base (16), a round hole for mounting the optical fiber adapter and a square hole for mounting the control signal socket are arranged on each protruding sheet, and the fixing sheet (17) is provided with a hole for fixing the cable tie (18).

3. The wire harness system structure for a vehicular phased array radar array according to claim 2, characterized by Two cable ties (18) are fixed on each fixing sheet (17).

4. The wire harness system structure for a vehicular phased array radar array according to claim 3, characterized by The base (16) and the fixing sheet (17) are made of aluminum.

5. The wire harness system structure for a vehicular phased array radar array according to claim 4, characterized by: The bundle adapter is mounted on the liquid cooling plate.

6. The wire harness system architecture for a vehicular phased array radar array of claim 1, wherein: The passive power divider is mounted on the liquid cooling plate.

Images