A high-temperature resistant and vibration-resistant composite wire harness connection structure

Abstract

This utility model relates to the field of composite wire harness technology and discloses a high-temperature resistant and vibration-resistant composite wire harness connection structure, including an end cap, a convex surface, a connecting wire, and a protective component. A sleeve is fixedly installed on the side of the end cap near the convex surface. A connecting end is provided on the inner edge of the end cap near the sleeve. Positioning block one and positioning block two are fixedly installed on the side of the end cap away from the convex surface. A partition plate is fixedly installed on the side of the end cap away from the convex surface. A protective sleeve is fixedly installed on the side of the end cap near the partition plate. Positioning sleeve one and positioning sleeve two are fixedly installed on the side of the end cap near the partition plate. This high-temperature resistant and vibration-resistant composite wire harness connection structure forms a rigid barrier on the outside by using a polyimide film insulation layer to resist mechanical impact and friction. Furthermore, the silicone rubber damping strip in the buffer layer absorbs vibration energy through elastic deformation. The polyimide film insulation layer maintains stable insulation performance in high-temperature environments, isolating the risk of short circuits between wires.

Description

Technical Field

[0001] This utility model relates to the field of composite wire harness technology, specifically a high-temperature resistant and vibration-resistant composite wire harness connection structure. Background Technology

[0002] With the development of aerospace, automotive, energy and power, and rail transportation, the operating environment of equipment is becoming increasingly harsh. Temperatures inside aircraft engine compartments can reach 200-600℃, and the temperature around automobile engines exceeds 150℃. In these scenarios, equipment is continuously subjected to mechanical vibration, impact and other loads. Traditional wiring harnesses are prone to insulation aging and wire breakage. Furthermore, modern electronic devices are becoming increasingly integrated, requiring wiring harnesses to transmit more signals and power in a limited space while also demanding a long lifespan.

[0003] Chinese Utility Model Patent Publication No. CN207069487U discloses a composite wire harness. This composite wire harness has a second wire-clamping reel with a plurality of second slots around its periphery for inserting wires. A plurality of insulating partitions are fixedly mounted on the outer wall of the inner insulating tube. The first end of each insulating partition is fixedly connected to the first wire-clamping reel, and the second end of each insulating partition is fixedly connected to the second wire-clamping reel. However, this composite wire harness lacks a high-temperature resistant structure, which can easily lead to unstable insulation performance in high-temperature environments, resulting in a high risk of short circuits between the insulated wires. Furthermore, the lack of a positioning structure makes it prone to displacement during use, thus affecting its normal operation. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a high-temperature resistant and vibration-resistant composite wire harness connection structure, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a high-temperature resistant and vibration-resistant composite wire harness connection structure, including an end cap, a convex surface, a connecting wire, and a protective component. A sleeve is fixedly installed on the side of the end cap near the convex surface. A connecting end is provided on the inner edge of the end cap near the sleeve. A positioning block one and a positioning block two are fixedly installed on the side of the end cap away from the convex surface. A partition plate is fixedly installed on the side of the end cap away from the convex surface. A protective sleeve is fixedly installed on the side of the end cap near the partition plate. A positioning sleeve one and a positioning sleeve two are fixedly installed on the side of the end cap near the partition plate.

[0006] Preferably, the protective component includes a sheath layer, an insulating layer is provided along the inner edge of the sheath layer, a buffer layer is provided on the side of the insulating layer away from the sheath layer, the protective component is located at the outer edge of the connecting line, and the sheath layer, the insulating layer and the buffer layer are an integral structure.

[0007] The above technical solution forms a three-dimensional protection system with outer protection, inner insulation and middle buffer through the three-layer structure of the protective components. The one-piece molding avoids delamination failure, which can improve its protection level and improve its practicality.

[0008] Preferably, the insulating layer is made of polyimide film, and the buffer layer is made of silicone rubber damping strip.

[0009] The above technical solution forms a rigid barrier on the outside by making the insulating layer a polyimide film, which resists mechanical impact and friction. The silicone rubber damping strip of the buffer layer absorbs vibration energy through elastic deformation. The polyimide film of the insulating layer maintains stable insulation performance in high-temperature environments above 260°C, thus isolating the risk of short circuits between conductors.

[0010] Preferably, the end cap is fixedly installed with mounting ears at both ends away from the center line, and the mounting ears are provided with mounting grooves running from top to bottom.

[0011] Through the above technical solution and the design of the mounting groove, when the end cover is installed, it can be fixed by bolt connection through the mounting groove. The mounting ears are set at both ends of the end cover to form a symmetrical support structure, ensuring that the connection structure remains stable in a vibration environment.

[0012] Preferably, the first positioning block and the second positioning block have triangular cross-sections, and the first positioning block and the second positioning block face opposite directions.

[0013] Through the above technical solution, positioning block one and positioning block two have triangular cross sections and face opposite directions, forming a "slot-type" positioning structure. During assembly, the triangular positioning blocks are embedded in the corresponding grooves, and the inclined plane guides the rapid positioning. At the same time, the stability of the triangular structure is used to prevent the end cap from rotating circumferentially.

[0014] Preferably, there are two identical positioning blocks one and two positioning blocks two, which are symmetrically distributed about the center line of the end cap.

[0015] The above technical solution, through the dual positioning formed by two sets of symmetrically distributed positioning blocks, can further improve its resistance to deformation, thereby preventing it from easily displacing due to vibration after installation.

[0016] Preferably, the connecting line is connected to the connecting end, and the protective sleeve, positioning sleeve one, and positioning sleeve two all abut against the connecting line.

[0017] The above technical solution, through the design of the protective sleeve, positioning sleeve one, and positioning sleeve two, can limit the connection wire, thereby preventing the connection wire from being easily bent or broken during installation, thus affecting normal use.

[0018] Compared with the prior art, this utility model provides a high-temperature resistant and vibration-resistant composite wire harness connection structure, which has the following beneficial effects:

[0019] 1. This high-temperature resistant and vibration-resistant composite wire harness connection structure forms a rigid barrier on the outside by making the insulation layer a polyimide film, which resists mechanical impact and friction. The silicone rubber damping strip of the buffer layer absorbs vibration energy through elastic deformation. The polyimide film of the insulation layer maintains stable insulation performance in high-temperature environments, thus isolating the risk of short circuits between wires.

[0020] 2. The high-temperature resistant and vibration-resistant composite wire harness connection structure has positioning blocks one and two with triangular cross sections and opposite orientations, forming a "slot-type" positioning structure. During assembly, the triangular positioning blocks are embedded into the corresponding grooves, and the inclined guides achieve rapid positioning. At the same time, the stability of the triangular structure is used to prevent the end cap from rotating circumferentially. In addition, the design of the protective sleeve, positioning sleeve one, and positioning sleeve two can prevent the connecting wire from shifting inside the end cap, thus improving its vibration resistance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of the installation structure of the end cap and partition plate of this utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the end cap and positioning sleeve of this utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the protective rubber sleeve of this utility model.

[0028] The components are: 1. End cap; 2. Convex surface; 3. Insert sleeve; 4. Connecting end; 5. Positioning block one; 6. Positioning block two; 7. Mounting ear; 8. Mounting groove; 9. Separator plate; 10. Protective sleeve; 11. Positioning sleeve one; 12. Positioning sleeve two; 13. Connecting wire; 14. Protective component; 1401. Sheath layer; 1402. Insulation layer; 1403. Buffer layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1: As Figure 1-7 As shown, the present invention provides a high-temperature resistant and vibration-resistant composite wire harness connection structure, including an end cap 1, a convex surface 2, a connecting wire 13, and a protective component 14. A sleeve 3 is fixedly installed on the side of the end cap 1 near the convex surface 2. A connecting end 4 is provided on the inner edge of the end cap 1 near the sleeve 3. A positioning block 1 5 and a positioning block 2 6 are fixedly installed on the side of the end cap 1 away from the convex surface 2. A partition plate 9 is fixedly installed on the side of the end cap 1 away from the convex surface 2. A protective sleeve 10 is fixedly installed on the side of the end cap 1 near the partition plate 9. A positioning sleeve 1 11 and a positioning sleeve 2 12 are fixedly installed on the side of the end cap 1 near the partition plate 9.

[0031] Specifically, the protective component 14 includes a sheath layer 1401, an insulating layer 1402 is provided at the inner edge of the sheath layer 1401, and a buffer layer 1403 is provided on the side of the insulating layer 1402 away from the sheath layer 1401. The protective component 14 is located at the outer edge of the connecting line 13. The sheath layer 1401, the insulating layer 1402 and the buffer layer 1403 are an integral structure. The advantage is that the three-layer structure of the protective component 14 forms a three-dimensional protective system of outer protection, inner insulation and middle buffer. Moreover, the integral molding avoids delamination failure, which can improve its protection level and improve its practicality.

[0032] Specifically, the insulating layer 1402 is made of polyimide film, and the buffer layer 1403 is made of silicone rubber damping strip. The advantage is that the polyimide film of the insulating layer 1402 forms a rigid barrier on the outside to resist mechanical impact and friction. Furthermore, the silicone rubber damping strip of the buffer layer 1403 absorbs vibration energy through elastic deformation. The polyimide film PI of the insulating layer 1402 still maintains stable insulation performance in high-temperature environments above 260°C, thus isolating the risk of short circuits between conductors.

[0033] Specifically, mounting ears 7 are fixedly installed at both ends of the end cap 1 away from the center line. The mounting ears 7 have mounting grooves 8 running through them from top to bottom. The advantage is that, through the design of the mounting grooves 8, when the end cap 1 is installed, it can be fixedly installed by bolting through the mounting grooves 8. Furthermore, the mounting ears 7 are set at both ends of the end cap 1 to form a symmetrical support structure, ensuring that the connection structure remains stable in a vibration environment.

[0034] Example 2: Figure 2-7 As shown, this is an improvement on the previous embodiment.

[0035] Specifically, positioning block 5 and positioning block 6 have triangular cross sections and face opposite directions. The advantage is that positioning block 5 and positioning block 6 have triangular cross sections and face opposite directions, forming a "slot-type" positioning structure. During assembly, the triangular positioning blocks are embedded in the corresponding grooves and are quickly positioned by the inclined guide. At the same time, the stability of the triangular structure is used to prevent the end cap 1 from rotating circumferentially.

[0036] Specifically, there are two identical positioning blocks 5 and 6. The two positioning blocks 5 and 6 are symmetrically distributed about the center line of the end cover 1. The advantage is that the two sets of symmetrically distributed positioning blocks 5 and 6 form a double positioning, which can further improve its resistance to deformation, thereby avoiding displacement due to vibration after installation.

[0037] Specifically, the connecting wire 13 is connected to the connecting end 4. The protective sleeve 10, positioning sleeve one 11 and positioning sleeve two 12 all abut against the connecting wire 13. The advantage is that the design of the protective sleeve 10, positioning sleeve one 11 and positioning sleeve two 12 can limit the connecting wire 13, thereby preventing the connecting wire 13 from being easily bent or broken during installation, thus affecting normal use.

[0038] Working Principle: During use, the three-layer structure of the protective component 14 forms a three-dimensional protective system consisting of outer protection, inner insulation, and middle buffer. The integrated molding avoids delamination failure, improving its protection level and practicality. The insulation layer 1402, made of polyimide film, forms a rigid barrier on the outside, resisting mechanical impact and friction. The silicone rubber damping strip of the buffer layer 1403 absorbs vibration energy through elastic deformation. The polyimide film PI of the insulation layer 1402 maintains stable insulation performance even in high-temperature environments above 260℃, isolating the risk of short circuits between conductors. Through the design of the mounting groove 8, when the end cover 1 is installed, it can be fixed by bolt connection through the mounting groove 8. The mounting ears 7 are located at both ends of the end cover 1, forming... The symmetrical support structure ensures the stability of the connection structure in a vibration environment. Positioning block 5 and positioning block 6 have triangular cross sections and face opposite directions, forming a "slot-type" positioning structure. During assembly, the triangular positioning blocks are embedded into the corresponding grooves, and the inclined guides achieve rapid positioning. At the same time, the stability of the triangular structure prevents the end cap 1 from rotating circumferentially. The two sets of symmetrically distributed positioning blocks 5 and 6 form a double positioning, which can further improve its resistance to deformation, thereby preventing it from easily shifting due to vibration after installation. The design of the protective sleeve 10, positioning sleeve 11 and positioning sleeve 12 can limit the connection line 13, thereby preventing the connection line 13 from easily bending or breaking during installation, thus affecting normal use.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-temperature resistant and vibration-resistant composite wire harness connection structure, comprising an end cap (1), a convex surface (2), a connecting wire (13), and a protective component (14), characterized in that: A sleeve (3) is fixedly installed on the side of the end cap (1) near the convex surface (2). A connecting end (4) is provided on the inner edge of the end cap (1) near the sleeve (3). A positioning block one (5) and a positioning block two (6) are fixedly installed on the side of the end cap (1) away from the convex surface (2). A partition plate (9) is fixedly installed on the side of the end cap (1) away from the convex surface (2). A protective sleeve (10) is fixedly installed on the side of the end cap (1) near the partition plate (9). A positioning sleeve one (11) and a positioning sleeve two (12) are fixedly installed on the side of the end cap (1) near the partition plate (9).

2. The high-temperature resistant and vibration-resistant composite wire harness connection structure according to claim 1, characterized in that: The protective component (14) includes a sheath layer (1401), an insulating layer (1402) is provided at the inner edge of the sheath layer (1401), and a buffer layer (1403) is provided on the side of the insulating layer (1402) away from the sheath layer (1401). The protective component (14) is located at the outer edge of the connecting line (13). The sheath layer (1401), the insulating layer (1402) and the buffer layer (1403) are an integral structure.

3. The high-temperature resistant and vibration-resistant composite wire harness connection structure according to claim 2, characterized in that: The insulating layer (1402) is made of polyimide film, and the buffer layer (1403) is made of silicone rubber damping strip.

4. The high-temperature resistant and vibration-resistant composite wire harness connection structure according to claim 1, characterized in that: The end cap (1) is fixedly installed with mounting ears (7) at both ends away from the center line, and the mounting ears (7) are provided with mounting grooves (8) running from top to bottom.

5. The high-temperature resistant and vibration-resistant composite wire harness connection structure according to claim 1, characterized in that: The cross-sections of the first positioning block (5) and the second positioning block (6) are triangular, and the first positioning block (5) and the second positioning block (6) face opposite directions.

6. The high-temperature resistant and vibration-resistant composite wire harness connection structure according to claim 5, characterized in that: The first positioning block (5) and the second positioning block (6) are provided in two identical parts, and the two positioning blocks (5) and the second positioning block (6) are symmetrically distributed about the center line of the end cap (1).

7. The high-temperature resistant and vibration-resistant composite wire harness connection structure according to claim 1, characterized in that: The connecting line (13) is connected to the connecting end (4), and the protective sleeve (10), positioning sleeve one (11) and positioning sleeve two (12) all abut against the connecting line (13).

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