Airplane motion cable assembly

Abstract

The utility model belongs to the technical field of airplane EWIS product design, in particular to an airplane motion cable assembly, which is characterized in that one end of a groove type arc-shaped cable support arm assembly is connected with a support assembly A, one end of the groove type cable support arm assembly is connected with a support assembly B, and the other end of the groove type arc-shaped cable support arm assembly is connected with the other end of the groove type cable support arm assembly; the groove-type arc cable support arm assembly and the groove-type cable support arm assembly are both provided with grooves, and the middle section of the rectangular wire harness assembly is accommodated in the grooves in the groove-type arc cable support arm assembly and the groove-type cable support arm assembly and is limited through a plurality of rectangular hoops. According to the utility model, a mechanical movement mechanism is combined with the rectangular flexible cable, the movement of the cable is limited on a set track, the harmful swing of the flexible cable caused by the flight vibration of an airplane is reduced, the cable wear is avoided, the movement angle is dispersed through a plurality of movement parts, and the service life of the assembly is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft EWIS (Aircraft Electrical Interconnection) product design technology, specifically an aircraft motion cable assembly. Background Technology

[0002] Aircraft have moving parts, such as landing gear, folding wings, and slats. Electrical connections between devices on these moving parts are typically achieved through direct cable connections with sufficient movement margin, or by using wire harnesses with coils to provide this margin. Direct cable connections with movement margin are simple and easy to implement in ample space; however, in confined spaces, the cable margin cannot be properly concealed, and the uncontrollable movement trajectory during operation can lead to interference with surrounding structures or equipment, or cable abrasion, potentially causing accidents. Using wire harnesses with coils to provide movement margin allows for coaxial cable movement in small spaces, with the movement margin provided by the coil's contraction and expansion. However, this method is unsuitable for situations with a large number of cables due to limitations in cable and coil diameters, and it also fails to address situations involving coaxial cables and optical fibers. For situations with limited space and a large number and variety of cables, neither of the above methods can solve the problem, necessitating the invention of a novel motion cable assembly. Utility Model Content

[0003] To address the aforementioned problems in the electrical connections between devices on moving parts of aircraft, the purpose of this invention is to provide an aircraft motion cable assembly. This aircraft motion cable assembly can be arranged within a limited space and can include various cables such as low-frequency conductors, coaxial cables, and optical fibers. It features the characteristics of accommodating a large number of cables, controllable cable movement trajectories, and multiple parts sharing the motion angle, while maintaining continuous and uninterrupted signal transmission.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An aircraft motion cable assembly includes a trough-type arc-shaped cable support arm assembly, a trough-type cable support arm assembly, a rectangular wire harness assembly, a support assembly A, a support assembly B, and rectangular clamps. One end of the trough-type arc-shaped cable support arm assembly is connected to support assembly A, one end of the trough-type cable support arm assembly is connected to support assembly B, and the other end of the trough-type arc-shaped cable support arm assembly is connected to the other end of the trough-type cable support arm assembly. Both the trough-type arc-shaped cable support arm assembly and the trough-type cable support arm assembly have grooves. The middle section of the rectangular wire harness assembly is accommodated in the grooves on the trough-type arc-shaped cable support arm assembly and the trough-type cable support arm assembly, and is limited by multiple rectangular clamps.

[0006] The grooved arc cable support arm assembly includes an arc-shaped support plate A and grooved arc-shaped support arms located on both sides of the support plate A. The support plate A and the grooved arc-shaped support arms on both sides form a rectangular groove for accommodating a rectangular wire harness assembly. The support plate A is provided with a support plate nut A for connecting with a rectangular clamp.

[0007] The support assembly A is U-shaped, with one end of the grooved arc-shaped support arm on both sides located inside the U-shaped opening of the support assembly A, and connected to both sides of the U-shaped opening by square cap bolts, bushings B, washers, flower nuts and cotter pins.

[0008] Bolt holes are provided on both sides of the U-shaped opening of the support assembly A, and bushings B are inserted into the bolt holes. Bolt holes are provided at one end of the grooved arc-shaped support arm on both sides, and a square groove is provided on the inward side of one end of the grooved arc-shaped support arm. The square cap bolt passes through the bushing B in the bolt hole on the grooved arc-shaped support arm and the bolt hole on the support assembly A, and is fitted with the flower nut, and then the cotter pin is inserted for fixation. The square end of the square cap bolt is accommodated in the square groove opened on the inward side of one end of the grooved arc-shaped support arm, and the end face of the square cap bolt is coplanar with the inner side of one end of the grooved arc-shaped support arm. A washer fitted on the square cap bolt is provided between the flower nut and the support assembly A.

[0009] The trough-type cable support arm assembly includes a support plate B and trough-type support arms located on both sides of the support plate B. The support plate B is a flat plate, and the support plate B and the trough-type support arms on both sides form a rectangular groove for accommodating the rectangular wire harness assembly. The support plate B is provided with a support plate nut B for connecting with a rectangular clamp.

[0010] The support assembly B is U-shaped, with one end of the slotted support arm on both sides located inside the U-shaped opening of the support assembly B, and connected to both sides of the U-shaped opening by square cap bolts, bushing B, washers, flower nuts and cotter pins.

[0011] Bolt holes are provided on both sides of the U-shaped opening of the support assembly B, and bushings C are inserted into the bolt holes. Bolt holes are provided at one end of the slotted support arms on both sides, and a square groove is provided on the inward side of one end of the slotted support arm. The square cap bolt passes through the bushing C in the bolt hole on the slotted support arm and the bolt hole on the support assembly B, and is fitted with the flower nut, and then the cotter pin is inserted for fixation. The square end of the square cap bolt is accommodated in the square groove opened on the inward side of one end of the slotted support arm, and the end face of the square cap bolt is coplanar with the inner side of one end of the slotted support arm. A washer fitted on the square cap bolt is provided between the flower nut and the support assembly B.

[0012] The rectangular cable harness assembly includes a rectangular cable, an electrical connector, and a tail accessory. The rectangular cable has a rectangular cable segment and multiple circular cable branches. The rectangular cable segment has an insulating sheath. The multiple circular cable branches pass through the insulating sheath. The insulating sheath has a rectangular cross-section. The multiple circular cable branches are arranged side by side inside the insulating sheath. Each circular cable branch has an electrical connector and a tail accessory at both ends.

[0013] The end face of the rectangular clamp is an inverted U-shape, with the two sides of the inverted U-shaped opening extending outwards respectively, for fixing to the grooved arc cable support arm assembly or the grooved cable support arm assembly.

[0014] The advantages and positive effects of this utility model are as follows:

[0015] 1. This utility model adopts a mechanical motion mechanism combined with a rectangular flexible cable to restrict the movement of the cable to a set trajectory, reduce the harmful swaying of the flexible cable caused by aircraft flight vibration, avoid cable wear, and increase the component life by dispersing the movement angle through multiple moving parts.

[0016] 2. The rectangular cable harness assembly of this utility model adopts a combination of rectangular cable segments and circular branches. In space-constrained areas, the rectangular cable segments maximize the number of cables that can be arranged, while the circular branch segments meet all cable movement requirements and the requirements for docking with the machine's cable harness. This satisfies both space constraints and movement requirements.

[0017] 3. The cable of this utility model is laid along the groove of the mechanical component, which provides sufficient protection for the cable, increases the reliability of the moving cable, and extends the service life of the product.

[0018] 4. The support arm assembly of this utility model has a square groove inside, which cooperates with the square cap bolt so that the bolt head is flush with the inner wall of the support arm, avoiding the bolt head from interfering with the movement of the cable. At the same time, the square groove can restrict the free rotation of the square cap bolt.

[0019] 5. The multi-segment motion structure of this utility model, by reasonably setting the size and shape of the trough-type arc cable support arm assembly and the trough-type cable support arm assembly, can avoid interference with other components, and at the same time distribute the motion angle to the multi-segment motion structure to avoid damage to the flexible cable due to excessive motion angle. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a schematic diagram of the rectangular wire harness assembly of this utility model;

[0023] Figure 4A This is one of the structural schematic diagrams of the grooved arc-shaped cable support arm assembly of this utility model;

[0024] Figure 4B This is the second structural schematic diagram of the grooved arc-shaped cable support arm assembly of this utility model;

[0025] Figure 5A This is one of the structural schematic diagrams of the trough-type cable support arm assembly of this utility model;

[0026] Figure 5B This is the second structural schematic diagram of the trough-type cable support arm assembly of this utility model;

[0027] Figure 6A This is a schematic diagram of the structure of the support assembly A of this utility model;

[0028] Figure 6B This is a schematic diagram of the structure of the support assembly B of this utility model;

[0029] Figure 7 A cross-sectional view of the rectangular wire harness assembly and the slotted arc cable support assembly or the slotted cable support assembly of this utility model.

[0030] Figure 8 This is a cross-sectional view of the installation of the trough-type arc-shaped cable support arm assembly or the trough-type cable support arm assembly and the support assembly of this utility model.

[0031] Wherein: 1 is a trough-type arc-shaped cable support arm assembly, 101 is a trough-type arc-shaped support arm, 102 is a support plate nut A, 103 is a support plate A, 2 is a trough-type cable support arm assembly, 201 is a trough-type support arm, 202 is a support plate nut B, 203 is a support plate B, 3 is a rectangular wire harness assembly, 301 is a rectangular cable, 302 is an electrical connector and tail accessory, 4 is a support assembly A, 5 is a support assembly B, 6 is a rectangular clamp, 7 is a bolt, 8 is a square cap bolt, 9 is a bushing A, 10 is a washer, 11 is a flower nut, 12 is a cotter pin, 13 is a bushing B, 14 is a bushing C, and 15 is a square groove. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] like Figure 1 , Figure 2As shown, this utility model includes a trough-type arc-shaped cable support arm assembly 1, a trough-type cable support arm assembly 2, a rectangular wire harness assembly 3, a support assembly A4, a support assembly B5, and rectangular clamps 6. One end of the trough-type arc-shaped cable support arm assembly 1 is connected to the support assembly A4, one end of the trough-type cable support arm assembly 2 is connected to the support assembly B5, and the other end of the trough-type arc-shaped cable support arm assembly 1 is connected to the other end of the trough-type cable support arm assembly 2. Both the trough-type arc-shaped cable support arm assembly 1 and the trough-type cable support arm assembly 2 are provided with grooves. The middle section of the rectangular wire harness assembly 3 is accommodated in the grooves on the trough-type arc-shaped cable support arm assembly 1 and the trough-type cable support arm assembly 2, and is limited by multiple rectangular clamps 6.

[0034] like Figure 4A , Figure 4B As shown, the slotted arc-shaped cable support arm assembly 1 of this embodiment includes an arc-shaped support plate A103 and slotted arc-shaped supports 101 located on both sides of the support plate A103. The support plate A103 and the slotted arc-shaped supports 101 on both sides form a rectangular groove for accommodating a rectangular wire harness assembly 3. The slotted arc-shaped supports 101 are used to contain the rectangular wire harness assembly 3 within the rectangular groove and to maintain the rectangular wire harness assembly 3 in a set shape. The support plate A103 is provided with a support plate nut A102 for connecting with a rectangular clamp 6. The slotted arc-shaped supports 101 of this embodiment can be set in terms of arc size and position according to the specific installation environment. For example... Figure 6A , Figure 8 As shown, the support assembly A4 in this embodiment is U-shaped. One end of the grooved arc-shaped support arms 101 on both sides is located in the U-shaped opening of the support assembly A4. Bolt holes are provided on both sides of the U-shaped opening of the support assembly A4, and bushings B13 are inserted into the bolt holes. Bolt holes are provided at one end of the grooved arc-shaped support arms 101 on both sides, and a square groove 15 is provided on the inward side of one end of the grooved arc-shaped support arm 101. The square cap bolt 8 passes through the bushing B13 in the bolt hole on the grooved arc-shaped support arm 101 and the bolt hole on the support assembly A4, and is fitted with a flower nut 11. Then, a cotter pin 12 is inserted for fixation. A washer 10 is provided between the flower nut 11 and the support assembly A4 and is fitted on the square cap bolt 8. The square end of the square cap bolt 8 is accommodated in the square groove 15 opened on the inward side of one end of the grooved arc-shaped support arm 101 to restrict the rotation of the square cap bolt 8. The end face of the square cap bolt 8 is coplanar with the inner side of one end of the grooved arc-shaped support arm 101.

[0035] like Figure 5A , Figure 5BAs shown, the slotted cable support arm assembly 2 of this embodiment includes a support plate B203 and slotted supports 201 located on both sides of the support plate B203. The support plate B203 is a flat plate, and the support plate B203 and the slotted supports 201 on both sides form a rectangular groove for accommodating the rectangular wire harness assembly 3. The slotted supports 201 are used to contain the rectangular wire harness assembly 3 in the rectangular groove and to maintain the rectangular wire harness assembly 3 in a set shape. The support plate B203 is provided with a support plate nut B202 for connecting with the rectangular clamp 6. Figure 6B , Figure 8 As shown, the support assembly B5 in this embodiment is U-shaped. One end of the slotted support arms 201 on both sides is located in the U-shaped opening of the support assembly B5. Bolt holes are provided on both sides of the U-shaped opening of the support assembly B5, and bushings C14 are inserted into the bolt holes. Bolt holes are provided at one end of the slotted support arms 201 on both sides, and a square groove 15 is provided on the inward side of one end of the slotted support arm 201. The square cap bolt 8 passes through the bolt hole on the slotted support arm 201 and the bushing C14 in the bolt hole on the support assembly B5, and is fitted with a flower nut 11. Then, a cotter pin 12 is inserted for fixation. A washer 10 is provided between the flower nut 11 and the support assembly B5 and is fitted on the square cap bolt 8. The square end of the square cap bolt 8 is accommodated in the square groove 15 opened on the inward side of one end of the slotted support arm 201 to restrict the rotation of the square cap bolt 8. The end face of the square cap bolt 8 is coplanar with the inner side of one end of the slotted support arm 201 to avoid the bolt head of the square cap bolt 8 interfering with the movement of the cable.

[0036] like Figure 2 , Figure 4A , Figure 4B , Figure 5A , Figure 5B , Figure 6A , Figure 6B and Figure 8 As shown, in this embodiment, the other end of the two side slotted arc-shaped support arms 101 is located inside the other end of the two side slotted support arms 201. Bolt holes are opened at the other end of the two side slotted support arms 201, and bushings A9 are inserted into the bolt holes. Bolt holes are opened at the other end of the two side slotted arc-shaped support arms 101, and a square groove 15 is provided on the inward side of the other end of the slotted arc-shaped support arm 101. The square cap bolt 8 passes through the bolt holes on the slotted arc-shaped support arm 101 and the bushings A9 in the bolt holes on the slotted support arm 201, and is fitted with a flower nut. Then, a cotter pin 12 is inserted for fixation. A washer 10 is provided between the flower nut 11 and the slotted support arm 201 and is fitted on the square cap bolt 8. The square end of the square cap bolt 8 is accommodated in the square groove 15 opened on the inward side of the other end of the slotted arc-shaped support arm 101. The end face of the square cap bolt 8 is coplanar with the inner side of the other end of the slotted arc-shaped support arm 101 to avoid the bolt head of the square cap bolt 8 interfering with the movement of the cable.

[0037] like Figure 3As shown, the rectangular cable harness assembly 3 in this embodiment includes a rectangular cable 301, an electrical connector, and a tail accessory 302. The rectangular cable 301 has a rectangular cable segment and multiple circular cable branches. The rectangular cable segment has an insulating sheath, through which the multiple circular cable branches pass. The insulating sheath has a rectangular cross-section, and the multiple circular cable branches are arranged side by side inside the insulating sheath. Each circular cable branch has an electrical connector and a tail accessory 302 at both ends. The cross-section of the rectangular cable segment is rationally designed to overcome the limitation of not being able to use circular cables due to insufficient space, while ensuring that the internal conductors meet the required bending radius requirements.

[0038] like Figure 7 As shown, the end face of the rectangular clamp 6 is an inverted U-shape, with the two sides of the inverted U-shaped opening extending outwards respectively, for fixing to the trough-type arc cable support arm assembly 1 or the trough-type cable support arm assembly 2 by bolts 7; the rectangular wire harness assembly 3 is limited between the rectangular clamp 6 and the trough-type arc cable support arm assembly 1 or the trough-type cable support arm assembly 2 by the rectangular clamp 6.

[0039] This utility model uses a grooved arc-shaped cable support arm assembly 1 and a grooved cable support arm assembly 2 to fix and maintain the rectangular wire harness assembly 3 in a set shape, and to drive the rectangular wire harness assembly 3 to move along a predetermined trajectory.

[0040] This invention provides a novel method for implementing motion cables. Compared with existing motion cable products, it has the advantages of being able to meet large angles, including a large number of motion cables, applicable to areas with limited space, and having a fixed and controllable motion trajectory. It solves the shortcomings of existing products and provides a new solution for the electrical connection between moving parts of aircraft.

Claims

1. An aircraft motion cable assembly, characterized in that: The assembly includes a trough-type arc-shaped cable support arm assembly (1), a trough-type cable support arm assembly (2), a rectangular wire harness assembly (3), a support assembly A (4), a support assembly B (5), and a rectangular clamp (6). One end of the trough-type arc-shaped cable support arm assembly (1) is connected to the support assembly A (4), one end of the trough-type cable support arm assembly (2) is connected to the support assembly B (5), and the other end of the trough-type arc-shaped cable support arm assembly (1) is connected to the other end of the trough-type cable support arm assembly (2). Both the trough-type arc-shaped cable support arm assembly (1) and the trough-type cable support arm assembly (2) are provided with grooves. The middle section of the rectangular wire harness assembly (3) is accommodated in the grooves on the trough-type arc-shaped cable support arm assembly (1) and the trough-type cable support arm assembly (2) and is limited by multiple rectangular clamps (6).

2. The aircraft motion cable assembly according to claim 1, characterized in that: The grooved arc cable support arm assembly (1) includes an arc-shaped support plate A (103) and grooved arc support arms (101) located on both sides of the support plate A (103). The support plate A (103) and the grooved arc support arms (101) on both sides form a rectangular groove for accommodating the rectangular wire harness assembly (3). The support plate A (103) is provided with a support plate nut A (102) for connecting with a rectangular clamp (6).

3. The aircraft motion cable assembly according to claim 2, characterized in that: The support assembly A (4) is U-shaped, and one end of the grooved arc support arm (101) on both sides is located in the U-shaped opening of the support assembly A (4), and is connected to both sides of the U-shaped opening by square cap bolt (8), bushing B (13), washer (10), flower nut (11) and cotter pin (12).

4. The aircraft motion cable assembly according to claim 3, characterized in that: Bolt holes are provided on both sides of the U-shaped opening of the support assembly A (4), and bushings B (13) are inserted into the bolt holes; bolt holes are provided at one end of the grooved arc support arm (101) on both sides, and a square groove (15) is provided on the inward side of one end of the grooved arc support arm (101). The square cap bolt (8) passes through the bushing B (13) in the bolt hole on the grooved arc support arm (101) and the bolt hole on the support assembly A (4), and is fitted with the flower nut (11), and then the cotter pin (12) is inserted for fixation; the square end of the square cap bolt (8) is accommodated in the square groove (15) opened on the inward side of one end of the grooved arc support arm (101), and the end face of the square cap bolt (8) is coplanar with the inner side of one end of the grooved arc support arm (101); a washer (10) is provided between the flower nut (11) and the support assembly A (4) and fitted on the square cap bolt (8).

5. The aircraft motion cable assembly according to claim 1, characterized in that: The trough-type cable support arm assembly (2) includes a support plate B (203) and trough-type support arms (201) located on both sides of the support plate B (203). The support plate B (203) is a flat plate, and the support plate B (203) and the trough-type support arms (201) on both sides form a rectangular groove for accommodating the rectangular wire harness assembly (3). The support plate B (203) is provided with a support plate nut B (202) for connecting with a rectangular clamp (6).

6. The aircraft motion cable assembly according to claim 5, characterized in that: The support assembly B (5) is U-shaped, and one end of the grooved support arm (201) on both sides is located in the U-shaped opening of the support assembly B (5), and is connected to both sides of the U-shaped opening by square cap bolt (8), bushing B (13), washer (10), flower nut (11) and cotter pin (12).

7. The aircraft motion cable assembly according to claim 6, characterized in that: Bolt holes are provided on both sides of the U-shaped opening of the support assembly B (5), and bushings C (14) are inserted into the bolt holes; bolt holes are provided at one end of the slotted support arm (201) on both sides, and a square groove (15) is provided on the inward side of one end of the slotted support arm (201). The square cap bolt (8) passes through the bushing C (14) in the bolt hole on the slotted support arm (201) and the bolt hole on the support assembly B (5), and is fitted with the flower nut (11), and then the cotter pin (12) is inserted for fixation; the square end of the square cap bolt (8) is accommodated in the square groove (15) opened on the inward side of one end of the slotted support arm (201), and the end face of the square cap bolt (8) is coplanar with the inner side of one end of the slotted support arm (201); a washer (10) is provided between the flower nut (11) and the support assembly B (5) and fitted on the square cap bolt (8).

8. The aircraft motion cable assembly according to claim 1, characterized in that: The rectangular cable harness assembly (3) includes a rectangular cable (301) and an electrical connector and a tail accessory (302). The rectangular cable (301) has a rectangular cable segment and multiple circular cable branches. The rectangular cable segment has an insulating sheath. The multiple circular cable branches pass through the insulating sheath. The insulating sheath has a rectangular cross-section. The multiple circular cable branches are arranged side by side inside the insulating sheath. Each circular cable branch has an electrical connector and a tail accessory (302) at both ends.

9. The aircraft motion cable assembly according to claim 1, characterized in that: The end face of the rectangular clamp (6) is an inverted U-shape, with the two sides of the inverted U-shaped opening extending outwards respectively, for fixing to the grooved arc cable support assembly (1) or the grooved cable support assembly (2).

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