Hybrid-structure fully-sealed undercarriage wire harness

Abstract

The invention provides a hybrid-structure fully-sealed undercarriage wire harness, which belongs to the technical field of protection of wire harness products at undercarriages of aircrafts, and comprises a connector, a tail accessory connected with the connector, a wire connected with the connector through the tail accessory, and a deconcentrator arranged on the wire, a plurality of strong protection assemblies and a plurality of flexible protection assemblies are wrapped on the wire, the strong protection assemblies and the flexible protection assemblies are connected with the tail accessory and the deconcentrator, and the working environment of the strong protection assemblies is located in a tire blasting area. According to the structure, the wire + shielding hose and the wire + wave-proof sleeve + heat shrink tube structures are used, through the addition of the shielding hose and the wave-proof sleeve, the impact resistance of the wire harness is improved, protection assemblies with different strengths can be selected for assembly according to different application scenes through the deconcentrator, and the problem that an original wire harness cannot be flexibly combined is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of protection of wiring harness products for aircraft landing gear, and specifically relates to a fully sealed landing gear wiring harness with a hybrid structure. Background Art

[0002] Landing gear harnesses are used in aircraft landing gear systems and operate in harsh environments. They must be resistant to sand and dust, bird strikes, and tire blasts. Furthermore, different landing gear harness structures operate in different environments. Some existing landing gear harnesses utilize a wire + heat shrink tubing structure, which has low mechanical strength and poor resistance to sand and dust, bird strikes, and tire blasts. Other landing gear harnesses have higher mechanical strength, but the resulting stiffness makes them unsuitable for use in areas requiring bending. Furthermore, the use of high-strength materials for the entire landing gear harness results in high costs.

[0003] Therefore, it is necessary to provide a landing gear wiring harness that can be flexibly adjusted according to needs in different usage environments. Summary of the Invention

[0004] The purpose of this application is to provide a fully sealed landing gear with a hybrid structure to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned objectives, the present application provides the following technical solutions: a hybrid structure fully sealed landing gear wiring harness, comprising a connector, a tail accessory connected to the connector, a wire connected to the connector via the tail accessory, and a splitter provided on the wire.

[0006] The wire is wrapped with multiple strong protection components and multiple flexible protection components.

[0007] The strong protection component, the flexible protection component, the tail accessories and the splitter are connected.

[0008] The working environment of the strong protection component is in a tire explosion area.

[0009] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical features: the strong protection component includes a shielding hose, an inner sleeve, an outer sleeve and a nut; the flexible protection component includes a wave-proof sleeve wrapped around the outside of the wire and a heat shrinkable tube worn outside the wave-proof sleeve.

[0010] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical features: the shielding hose is a double-layer structure, the outer layer is made of stainless steel, and the inner layer is made of polytetrafluoroethylene.

[0011] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical feature: the connector is an aviation electrical connector.

[0012] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical features: the splitter is made of stainless steel, and the outlet of the splitter includes two connection structures, namely, a thread and an anti-slip groove.

[0013] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical features: the strong protection component is connected to the connector, the tail accessory and the splitter through threads, and the threaded connections are sealed with sealant.

[0014] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical features: the wave-proof sleeve and the splitter are fastened by a steel tie, and a shrinkable sleeve that is blown and tightened is provided on the outside of the steel tie.

[0015] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical features: a blow-shrinkable and tightened molded sleeve is provided on the outside of the connection between the harness branch of the wave-proof sleeve and the heat shrinkable tube and the tail accessory.

[0016] The hybrid structure fully sealed landing gear wiring harness provided by the present invention also has the following technical feature: the molded sleeve is filled with silicon insulating tape.

[0017] Beneficial effects

[0018] The hybrid structure fully sealed landing gear wiring harness provided in this application uses a wire + shielded hose, wire + wave-proof sleeve + heat shrink tube structure. By adding the shielded hose and wave-proof sleeve, the impact resistance of the wiring harness is improved. Through the splitter, protective components of different strengths can be selected for assembly according to different application scenarios, solving the problem that the original wiring harness cannot be flexibly combined. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic structural diagram of a hybrid structure fully sealed landing gear harness provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of the strong protection component provided in an embodiment of the present application;

[0022] Figure 3 This is a schematic structural diagram of the flexible protective assembly provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the connection between the strong protection component and the connector provided in an embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the connection between the strong protection component and the splitter provided in the embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of the strong protection component provided in an embodiment of the present application;

[0026] Figure 7 This is a schematic diagram of the connection between the flexible protective component and the splitter provided in an embodiment of the present application;

[0027] Figure 8 This is a schematic diagram of the connection between the flexible protective component and the connector provided in the embodiment of the present application.

[0028] Among them, 1: connector; 2: tail accessories; 3: wire; 4: splitter; 5: strong protection component; 51: shielding hose; 52: inner sleeve; 53: outer sleeve; 54: nut; 6: flexible protection component; 61: wave-proof sleeve; 62: heat shrink tube; 7: molded sleeve; 8: identification sleeve. DETAILED DESCRIPTION

[0029] The present application is further described in detail below with reference to the accompanying drawings and examples. However, it should be noted that these embodiments are not limitations of the present application, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in this field based on these embodiments are within the scope of protection of the present application.

[0030] In the description of the embodiments of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the creation of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the creation of the present application.

[0031] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of the inventions of this application, unless otherwise specified, "plurality" means two or more.

[0032] The terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. A person of ordinary skill in the art will understand the specific meanings of these terms in the context of this application based on specific circumstances.

[0033] like Figure 1-8 As shown, a hybrid structure fully sealed landing gear wiring harness is provided, comprising a connector 1, a tail attachment 2 connected to the connector 1, a wire 3 connected to the connector 1 through the tail attachment 2, and a splitter 4 provided on the wire 3.

[0034] The conductor 3 is wrapped with a plurality of strong protection components 5 and a plurality of flexible protection components 6.

[0035] The strong protection component 5 and the flexible protection component 6 are connected to the tail attachment 2 and the splitter 4.

[0036] The working environment of the strong protection component 5 is in the tire explosion area.

[0037] In the above embodiment, different branches can be set according to usage needs. A strong protection component 5 is used in the wiring harness in the tire explosion area, and a flexible protection component 6 is used in areas with a relatively mild working environment. An identification sleeve 8 is added to each branch for distinction.

[0038] In some embodiments, Figure 6 As shown, the strong protection component 5 includes a shielding hose 51, an inner sleeve 52, an outer sleeve 53 and a nut 54, and the flexible protection component 6 includes a wave-proof sleeve 61 wrapped around the outside of the wire 3 and a heat shrink tube 62 worn outside the wave-proof sleeve 61.

[0039] In some embodiments, the shielding hose 51 is a double-layer structure, with an outer layer made of stainless steel and an inner layer made of polytetrafluoroethylene. The nut 54, inner sleeve 52, and outer sleeve 53 are all made of stainless steel and are fixed to the shielding hose 51 by rolling, spot welding, or other methods.

[0040] In some embodiments, the connector 1 is an aviation electrical connector, and the tail attachment is a J1784 series tail attachment.

[0041] In some embodiments, the wire splitter 4 is made of stainless steel, and the wire outlet of the wire splitter includes two connection structures, namely a thread and an anti-slip groove.

[0042] In some embodiments, the strong protection component 5 is connected to the connector 1, the tail attachment 2 and the splitter 4 by threads, and the threaded connection is sealed with sealant. In this embodiment, the connection structure of the outlet of the splitter 4 is a threaded structure.

[0043] In some embodiments, the anti-wave sleeve 61 and the splitter 4 are fastened by a steel tie, and the outer side of the steel tie is provided with a shrinkable sleeve 7. In this embodiment, the connection structure of the outlet of the splitter 4 is an anti-slip groove structure.

[0044] In some embodiments, a shrinkable sleeve 7 that is blown and tightened is provided on the outside of the connection between the anti-wave sleeve 61 and the harness branch of the heat shrink tube 62 and the tail accessory 2.

[0045] In some embodiments, the molded sleeve 7 is filled with silicon insulating tape.

[0046] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above description is merely a preferred embodiment of the present application. It should be noted that those skilled in the art can make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A hybrid structure fully sealed landing gear wiring harness, characterized in that: It includes a connector, a tail accessory connected to the connector, a wire connected to the connector through the tail accessory, and a splitter arranged on the wire. The wire is wrapped with multiple strong protection components and multiple flexible protection components. The strong protection component, the flexible protection component, the tail accessories and the splitter are connected. The working environment of the strong protection component is in a tire explosion area.

2. The hybrid structure fully sealed landing gear wiring harness according to claim 1, characterized in that: The strong protection component includes a shielding hose, an inner sleeve, an outer sleeve and a nut, and the flexible protection component includes a wave-proof sleeve wrapped around the outside of the wire and a heat shrink tube worn outside the wave-proof sleeve.

3. The hybrid structure fully sealed landing gear wiring harness according to claim 1, characterized in that: The shielding hose has a double-layer structure, with an outer layer made of stainless steel and an inner layer made of polytetrafluoroethylene.

4. The hybrid structure fully sealed landing gear harness according to claim 1, characterized in that: The connector is an aviation electrical connector.

5. The hybrid structure fully sealed landing gear wiring harness according to claim 1, characterized in that: The wire splitter is made of stainless steel, and the wire outlet of the wire splitter includes two connection structures, namely a thread and an anti-slip groove.

6. The hybrid structure fully sealed landing gear wiring harness according to claim 1, characterized in that: The strong protection component is connected to the connector, the tail accessory and the splitter through threads, and the threaded connections are sealed with sealant.

7. The hybrid structure fully sealed landing gear wiring harness according to claim 1, characterized in that: The wave-proof sleeve and the splitter are fastened together by a steel tie, and a shrinkable sleeve for shrinking and tightening is provided on the outside of the steel tie.

8. The hybrid structure fully sealed landing gear wiring harness according to claim 1, characterized in that: A shrinkable sleeve for blowing and tightening is provided on the outside of the connection between the anti-wave sleeve and the harness branch of the heat shrink tube and the tail accessory.

9. The hybrid structure fully sealed landing gear wiring harness according to claim 7 or 8, characterized in that: The molded sleeve is filled with silicon insulating tape.

Images