Engine cable tail forked type thermal shrinkage packaging structure

Abstract

The invention provides an engine cable tail bifurcated thermal shrinkage packaging structure, which comprises a tail accessory, a mold shrinkage sleeve, a steel ribbon, a wave-proof sleeve and a sheath, and is characterized in that the mold shrinkage sleeve is packaged on the tail accessory through blowing shrinkage, and the wave-proof sleeve is tightened on the tail accessory through the steel ribbon, so that the tail end of the tail accessory is bifurcated, and the tail end of the tail accessory is sealed through the sheath. The sheath is arranged at the wire outlet of the mold shrinkage sleeve, the sheath is not in contact with the tail accessory, a forking processing structure is arranged in the mold shrinkage sleeve, the forking direction in the mold shrinkage sleeve and a wire harness trunk in the tail accessory are located on different planes, and the forking included angle is 135 degrees, so that the tail of the engine cable is packaged through the mold shrinkage sleeve; the forking angle of the tail accessory and the forking angle of the die shrinkage sleeve are combined, and three-dimensional space forking of the tail end of the tail accessory of the engine cable is achieved. And the two ends of the mold shrinkage sleeve are respectively fixed on the tail accessory and the sheath in a thermal shrinkage manner. In short, the device has the advantages of light weight, high reliability and simplicity and convenience in operation.

Description

Technical Field

[0001] The invention relates to the technical field of engine cables, in particular to a forked heat shrink packaging structure at the tail of an engine cable. Background Art

[0002] As the medium for transmitting signals on the engine, the engine cable has a more complex signal line and a higher degree of integration. It has higher requirements for the reliability of electromagnetic shielding protection, and at the same time, the structural composition of the cable should also meet the various performance requirements of the engine. The bifurcation design of the engine cable has important applications in aircraft engines. The engine cable is used for the electrical connection of various accessories, responsible for transmitting signals and control instructions, and ensuring the normal operation of the engine. Since the working environment of the engine is complex and harsh, the cable needs to have the ability to withstand multiple environments. The bifurcation design enables the cable to use high-temperature heat shrink tubing with glue at the bifurcation and the termination of the tail accessories and the sheath, which improves the sealing and mechanical strength of the cable, thereby improving the reliability and safety of the cable.

[0003] The bifurcation processing of traditional engine cables includes shielding processing and sheath overlapping. The whole processing process requires a certain process length. When the engine cable is arranged in a small space, it is necessary to avoid bifurcation or move the bifurcation forward. However, with the continuous advancement of engine cable technology and the continuous improvement of performance requirements, the traditional design structure not only cannot meet the bifurcation of engine cables in special positions, but also cannot meet the high-density and high-reliability laying requirements of the new generation of engine cables. There are problems such as complex structure, inconvenient operation, easy redundancy due to bifurcation restrictions, poor stability and poor bending resistance. Therefore, it is necessary to design a bifurcated heat shrink packaging structure at the tail of the engine cable to solve the above-mentioned problems. Summary of the invention

[0004] In view of this, the present invention proposes a forked heat shrink packaging structure at the tail of an engine cable, which is applied to the technical field of engine cables to solve the existing technical problems of complex structure, inconvenient operation, easy redundancy due to fork restrictions, poor stability and poor bending resistance.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A forked heat shrink packaging structure for the tail of an engine cable comprises a tail accessory, a molded sleeve, a steel cable tie, a wave-proof sleeve and a sheath. The molded sleeve is packaged on the tail accessory by blow shrinking, and the wave-proof sleeve is fastened to the tail accessory by a steel cable tie, thereby bifurcating the end of the tail accessory. The sheath is arranged at the outlet position of the molded sleeve, and the sheath does not contact the tail accessory.

[0007] Furthermore, a bifurcation processing structure is provided inside the molded sleeve, and the bifurcation direction inside the molded sleeve is in a different plane from the wiring harness trunk in the tail accessory, and the maximum bifurcation angle is 135°. The tail of the engine cable is encapsulated by the molded sleeve, and the bifurcation angle of the tail accessory is combined with the bifurcation angle of the molded sleeve to realize the three-dimensional spatial bifurcation of the end of the tail accessory of the engine cable.

[0008] Furthermore, two ends of the shrink sleeve are fixed to the tail attachment and the sleeve respectively by heat shrinking.

[0009] Compared with traditional metal splitters, the shrink sleeve used at the tail of the engine cable is lighter in weight and can be adapted to special bifurcation angles and customized. The heat shrink packaging process is simple and quick to operate. During the tail processing step, the shrink sleeve can be temporarily withdrawn to the rear attachment to ensure tail processing space, thereby improving the flexibility and operability of the process.

[0010] The present invention has the following beneficial effects:

[0011] 1. The present invention mentions a forked heat shrink packaging structure for the tail of the engine cable. The end of the engine cable tail accessory is forked to connect the wave-proof sleeve to the tail accessory to ensure shielding connectivity. The sheath is terminated at the outlet of the shrink sleeve and is no longer connected to the tail accessory, so that the end of the engine cable tail accessory is immediately forked, shortening the structural length required for the wiring harness bifurcation.

[0012] 2. The present invention mentions a forked heat shrink packaging structure for the tail of an engine cable. A molded sleeve with a three-dimensional fork direction is designed. The molded sleeve can adapt to straight, curved, and 135-degree tail accessories. The fork direction of the molded sleeve can be in a different plane from the wiring harness trunk, and the maximum angle can reach 135°. It can form multiple forks in different directions at the same time, and the fork direction is not limited by the direction of the wiring harness trunk, and can be in the same direction or opposite to the trunk. The tail of the engine cable is packaged by the molded sleeve, and the tail accessory angle and the molded sleeve fork angle are combined to achieve a three-dimensional spatial fork at the end of the engine cable tail accessory.

[0013] 3. The invention mentions a forked heat shrink packaging structure at the tail of an engine cable, in which the wave-proof sleeve is fastened to the tail accessory by a steel tie to ensure the continuity of the shielding. The two ends of the compression sleeve are heat-shrunk on the tail accessory and the sheath respectively, which releases the stress of the conductor and the shielding layer in the tail processing of the engine cable, improves the stability of the tail processing, and further enhances the bending resistance of the cable tail. At the same time, it has the characteristics of lightweight, high reliability and simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of a forked heat shrink packaging structure for the tail of an engine cable provided by the present invention;

[0016] Figure 2 Schematic diagram of the connection structure between the molded sleeve and the 135-degree tail attachment in a specific embodiment of the present invention

[0017] Figure 3 It is a schematic diagram of the connection structure between the molded sleeve and the straight tail attachment in a specific embodiment of the present invention;

[0018] Figure 4 It is a schematic diagram of the connection structure between the molded sleeve and the bent tail attachment in a specific embodiment of the present invention;

[0019] Among them: 1. Tail accessories; 2. Mold sleeve; 3. Steel tie; 4. Wave-proof sleeve; 5. Sheath. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0021] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present invention, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any of the several aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0023] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The illustrations only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the form, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0024] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0025] Example 1

[0026] like Figure 1 and Figure 2 As shown, a forked heat shrink packaging structure at the tail of an engine cable comprises a tail accessory 1, a molded sleeve, a steel cable tie 3, a wave-proof sleeve 4 and a sheath 5. The molded sleeve is packaged on the tail accessory 1 by blowing and shrinking, and the wave-proof sleeve 4 is fastened to the tail accessory 1 by the steel cable tie 3, so that a forked process is performed at the end of the tail accessory 1. The sheath 5 is arranged at the outlet position of the molded sleeve, and the sheath 5 does not contact the tail accessory 1. A forked processing structure is arranged inside the molded sleeve, and the forking direction inside the molded sleeve is in a different plane from the main trunk of the wire harness in the tail accessory 1, and the forking angle is 135°, so that the tail of the engine cable is packaged by the molded sleeve, and the forking angle of the tail accessory 1 is combined with the forking angle of the molded sleeve, so as to realize the three-dimensional space forking at the end of the tail accessory 1 of the engine cable. The two ends of the molded sleeve are respectively fixed on the tail accessory 1 and the sheath 5 by heat shrinking.

[0027] Compared with traditional metal splitters, the shrink sleeve used at the tail of the engine cable is lighter in weight and can be adapted to special bifurcation angles and customized. The heat shrink packaging process is simple and quick to operate. During the tail processing step, the shrink sleeve can be temporarily withdrawn to the rear attachment 1 to ensure the tail processing space, thereby improving the flexibility and operability of the process.

[0028] Example 2

[0029] Different from Example 1, Figure 3 As shown, in this embodiment, the molded sleeve is connected to the straight tail attachment 1, thereby realizing the three-dimensional spatial bifurcation of the end of the engine cable tail attachment 1.

[0030] Example 3

[0031] Different from Example 1, Figure 4 As shown, in this embodiment, the molded sleeve is connected to the curved tail attachment 1, thereby realizing the three-dimensional spatial bifurcation of the end of the engine cable tail attachment 1.

[0032] In summary, the present invention mentions a forked heat shrink packaging structure at the tail of an engine cable. Through the tail structure design, the end of the engine cable tail accessory 1 is immediately forked, shortening the structural length required for the wiring harness bifurcation; by designing a shrink sleeve in the three-dimensional bifurcation direction for packaging, the three-dimensional spatial bifurcation of the end of the engine cable tail accessory 1 is achieved, and the angle between the bifurcation direction and the main trunk can reach up to 135°, and the bifurcation direction is not limited by the main direction of the wiring harness, and can be in the same direction or opposite direction as the main trunk. At the same time, it has the advantages of lightweight, high reliability, and simple and convenient operation.

[0033] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A forked heat shrink packaging structure for the tail of an engine cable, characterized in that: The invention comprises a tail accessory (1), a molded sleeve, a steel cable tie (3), a wave-proof sleeve (4) and a protective sleeve (5); the molded sleeve is packaged on the tail accessory (1) by blowing and shrinking; the wave-proof sleeve (4) is fastened to the tail accessory (1) by the steel cable tie (3), thereby performing a bifurcation process at the end of the tail accessory (1); the protective sleeve (5) is arranged at the outlet position of the molded sleeve, and the protective sleeve (5) does not contact the tail accessory (1).

2. The engine cable tail fork heat shrink packaging structure according to claim 1, characterized in that: A bifurcation processing structure is provided inside the molded sleeve, and the bifurcation direction inside the molded sleeve is in a different plane from the wiring harness trunk inside the tail accessory (1), and the maximum bifurcation angle is 135°, so that the tail of the engine cable is encapsulated by the molded sleeve, and the bifurcation angle of the tail accessory (1) is combined with the bifurcation angle of the molded sleeve, so as to realize the three-dimensional spatial bifurcation of the end of the engine cable tail accessory (1).

3. The engine cable tail fork heat shrink packaging structure according to claim 2, characterized in that: The two ends of the shrink sleeve are respectively fixed to the tail attachment (1) and the sheath (5) by heat shrinking.

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