Protective structure of automobile low-voltage wire harness

Abstract

The utility model relates to the technical field of automobile wire harnesses, in particular to a protection structure of an automobile low-voltage wire harness, which is used for being arranged at the position of a low-voltage wire harness plug connector and comprises a plug connector sheath, a wire harness rubber coating and a flexible cover sleeve which is of a sleeve type structure. One end of the flexible cover sleeve is connected with the plug connector sheath and is called as a sheath connecting end; and the other end of the flexible cover sleeve is connected with the wire harness rubber coating, namely a rubber coating connecting end. The flexible cover sleeve is connected and fixed with the plug connector sheath and the wire harness rubber coating through a heat shrink tube. According to the low-voltage wire harness connector, the woven mesh pipes are added to the tail of the low-voltage wire harness connector and the front end of the rubber coating, so that a gathering and reinforcing effect is achieved, and terminal falling caused by too tight gathering of the wire harness due to winding protection of the rubber coating in the running process of a vehicle is avoided. The woven mesh pipe protects the tail part of the low-voltage wire harness connector from the front end of the rubber coating, so that the wire harness is prevented from being exposed outside, and the wire harness is protected. The woven mesh tube is fixed by the heat shrink tube, operation is simple and convenient, and the whole scheme is low in cost and easy to popularize and use.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness technology, and more specifically, to a protective structure for automotive low-voltage wiring harnesses. Background Technology

[0002] With the rise of new energy electric vehicles, pure electric vehicles will become the future trend. Low-voltage wiring harnesses are gradually acting as the "nervous system" of the vehicle's information interaction, playing a crucial role in vehicle operation and requiring enhanced protection measures for safe driving. Currently, low-voltage wiring harness protection in pure electric vehicles is divided into external and internal protection. External protection, such as that for the front compartment and body, is mostly achieved with open corrugated tubing wrapped in rubber, while internal protection, such as that for the dashboard, is mostly achieved with cloth tape. Figure 1 As shown.

[0003] The external protection of this type of low-voltage wiring harness is generally achieved by wrapping and protecting it with open corrugated tubing and electrical tape. On the exterior of the vehicle body (chassis, lower front compartment), there are many terminals of wiring harnesses for electrical components such as motors and electronic controls. Therefore, when wrapping and bundling the wiring harness, a gap must be left between the front end of the rubber wrapping and the rear end of the connector to prevent the wiring harness at the rear end of the connector from being too tightly restrained, which could cause the terminals to fall out of the connector during vehicle operation. Therefore, the unprotected part of the low-voltage wiring harness may be damaged by foreign objects (stones, sharp object fragments) during vehicle operation, or may be corroded by corrosive liquid splashes, causing corrosion of the wiring harness sheath, exposure of copper wires, and short circuits. Utility Model Content

[0004] The main purpose of this utility model is to provide a protective structure for automotive low-voltage wiring harnesses, so that the low-voltage wiring harnesses can obtain better safety protection outside the vehicle body.

[0005] To achieve the above objectives, according to one aspect of the present invention, a protective structure for automotive low-voltage wiring harnesses is provided, for use at the low-voltage wiring harness connector location, including a connector sheath and wiring harness insulation, characterized in that it further includes:

[0006] Flexible cover, which is a sleeve-type structure;

[0007] One end of the flexible cover is connected to the plug-in sheath, and is called the sheath connection end;

[0008] The other end of the flexible cover is connected to the wire harness with an adhesive coating, and is called the adhesive coating connection end.

[0009] The flexible cover, the connector sheath, and the wire harness coating are all connected and fixed by heat shrink tubing.

[0010] As a further improvement, the flexible cover is made of braided tubing.

[0011] In a further improvement, the rubber-coated connection end of the braided sleeve is fixed to the front end of the wire harness rubber coating, and the front end of the wire harness rubber coating refers to the end closer to the braided sleeve.

[0012] As a further improvement, the braided sleeve is made of nylon composite braided mesh.

[0013] Optionally, the braided sleeve is 30-40mm long.

[0014] Optionally, the braided sleeve covers the tail of the connector sheath by 5-10mm.

[0015] Optionally, the braided sleeve covers the front end of the wire harness coating by 5-10mm.

[0016] When using, select a braided mesh tube with an appropriate folding diameter and expansion range, and cut it to be slightly longer than the required protection length (30-40mm). Connect one end of the nylon composite braided mesh tube to the tail of the connector and wrap it around the connector body, covering the tail of the connector body by about 5-10mm. Then, use heat shrink tubing to heat shrink and fix the nylon composite braided mesh tube to the tail of the connector body. Next, cover the other end of the nylon composite protective braided mesh tube with the front end of the coated area by 5-10mm, so that the braided mesh tube slightly wraps around the front end of the coated area. Use heat shrink tubing to heat shrink and fix the front end of the coated area to the braided mesh tube.

[0017] The application of the technical solution of this utility model has the following technical effects:

[0018] (1) By adding braided mesh tubes to the tail end and the front end of the rubber coating of the low voltage wire harness connector, the wire harness at the tail end of the connector can be gathered and reinforced by the soft extensibility of the braided mesh tubes, thus avoiding the wire harness from falling off due to excessive tightness of the rubber coating during vehicle operation.

[0019] (2) By using braided mesh tubes to protect the low-voltage wire harness connector from the tail to the front end of the rubber coating, the problem of the wire harness being exposed and cut or damaged by sharp external objects is prevented. The braided mesh tubes also indirectly prevent external corrosive liquids from damaging the wire harness.

[0020] (3) The braided mesh tube is fixed by heat shrink tubing, which is easy to operate and the overall solution is inexpensive and easy to promote and use. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0022] Figure 1 This diagram illustrates how existing automotive low-voltage wiring harnesses are fixed and organized using an encapsulation method.

[0023] Figure 2 A schematic diagram of the protective structure of the automotive low-voltage wiring harness of this utility model is shown.

[0024] The above figures include the following reference numerals:

[0025] 1. Connector sheath;

[0026] 2. Low-voltage wiring harness;

[0027] 3. Wire harness coating;

[0028] 4. Braided tubing;

[0029] 5. Heat shrink tubing. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figure 2 As shown, the protective structure of the automotive low-voltage wiring harness includes a wiring harness sheath 3 and a flexible, expandable, sleeve-shaped braided sleeve 2. One end of the braided sleeve 2 is connected to the connector sheath 1, which is called the sheath connection end. The other end of the braided sleeve 2 is connected to the wiring harness sheath 3, which is called the sheath connection end.

[0032] The braided sleeve is placed over the low-voltage wire harness. Nylon composite braided mesh can be used as a flexible cover to protect the low-voltage wire harness.

[0033] The rubber-coated connection end of the braided sleeve 2 is fixed to the front end of the wire harness rubber coating, wherein the front end of the wire harness rubber coating refers to the end closer to the braided sleeve.

[0034] In terms of size design, the braided sleeve is 30-40mm long, the braided sleeve 2 covers the tail of the connector sheath by 5-10mm, and the braided sleeve covers the front end of the wire harness coating by 5-10mm.

[0035] The usage process is as follows:

[0036] Step 1: Select a braided mesh tube with an appropriate diameter and expansion range, and cut it to a length slightly longer than the required protection length (30-40mm). Nylon composite braided mesh tubes can be used (the material is mainly nylon composite).

[0037] Step 2: Connect one end of the nylon composite braided mesh tube to the tail of the connector sheath and wrap it around the connector body, covering the tail of the connector body by about 5-10mm;

[0038] Step 3: Use heat shrink tubing to heat shrink and fix the nylon composite braided mesh tube at the end of the connector;

[0039] Step 4: Cover the other end of the nylon composite protective woven mesh with the front end of the coated area by 5-10mm, so that the woven mesh tube slightly wraps around the front end of the coated area.

[0040] Step 5: Use heat shrink tubing to heat shrink and fix the front end of the coated part to the braided mesh tube.

[0041] Using the protective structure for automotive low-voltage wiring harnesses provided in this solution offers the following advantages:

[0042] (1) The low-voltage wiring harness safety protection of the exposed parts of the chassis and the lower part of the front compartment has been increased, which reduces the risk of vehicle breakdown caused by wiring harness damage during the driving of new energy pure electric vehicles.

[0043] (2) The materials are common, the price is low, the operation is simple, and the feasibility is extremely high.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective structure for automotive low-voltage wiring harnesses, used at the low-voltage wiring harness connector location, comprising a connector sheath and wiring harness insulation, characterized in that, Also includes: Flexible cover, which is a sleeve-type structure; One end of the flexible cover is connected to the plug-in sheath, and is called the sheath connection end; The other end of the flexible cover is connected to the wire harness with an adhesive coating, and is called the adhesive coating connection end. The flexible cover, the connector sheath, and the wire harness coating are all connected and fixed by heat shrink tubing.

2. The protective structure for automotive low-voltage wiring harnesses as described in claim 1, characterized in that, The flexible cover is made of braided tubing.

3. The protective structure for automotive low-voltage wiring harnesses as described in claim 2, characterized in that, The rubber-coated connection end of the braided sleeve is fixed to the front end of the wire harness rubber coating, and the front end of the wire harness rubber coating refers to the end closer to the braided sleeve.

4. The protective structure for automotive low-voltage wiring harnesses as described in claim 3, characterized in that, The braided sleeve is made of nylon composite braided mesh.

5. The protective structure for automotive low-voltage wiring harnesses as described in claim 2, characterized in that, The braided sleeve is 30-40mm long.

6. The protective structure for automotive low-voltage wiring harnesses as described in claim 2, characterized in that, The braided sleeve covers the tail of the connector sheath by 5-10mm.

7. The protective structure for automotive low-voltage wiring harnesses as described in claim 2, characterized in that, The braided sleeve covers the front end of the wire harness with rubber coating by 5-10mm.

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