Waterproof bending-resistant wire harness

Abstract

The utility model discloses a waterproof bending-resistant wire harness, which relates to the technical field of wire harnesses, solves the problem that the bending-resistant performance of the existing standard wire harnesses is general, and comprises a heat-shrinkable sleeve, a bending-resistant wire harness is wrapped in the heat-shrinkable sleeve, a bending pipe is sleeved on the outer surface of the heat-shrinkable sleeve, and the bending pipe is sleeved on the outer surface of the heat-shrinkable sleeve. One end of the heat-shrinkable sleeve is fixedly connected with a connecting wire, the other end of the heat-shrinkable sleeve is provided with a waterproof connector, and one end of the connecting wire is fixedly connected with an aviation plug. According to the utility model, secondary bending can be satisfied through the bending-resistant wire harness, a closed corrugated pipe is selected as a bending pipe, and the heat-shrinkable sleeve is fixed on the wire harness body; the overall assembly can be completed by cutting the bending-resistant wire harness and the bending pipe into required lengths, riveting and assembling the bending-resistant wire harness and the bending pipe with the waterproof connector, carrying out internal dispensing, then assembling the bending pipe, and finally assembling the bending pipe and the heat-shrinkable sleeve, the waterproof and wear-resistant characteristics are achieved through definition of material selection, and the overall service life of the wire harness is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harnesses, in particular to a waterproof and bending-resistant wire harness. Background Art

[0002] A wiring harness is a bundle of multiple wires or cables that are combined into an integrated structure, which is usually used to connect and transmit electrical signals, power or information for internal electrical connections in systems such as equipment, automobiles, aircraft, and electronic equipment. The design of the wiring harness helps simplify the installation, maintenance, and troubleshooting process, while also improving the reliability and overall performance of the electrical system.

[0003] There are still some problems with the existing wiring harnesses in actual use. For example, the bending resistance of the existing standard wire harnesses is average, and they can only be bent about 1,000 times, which greatly reduces the service life of the existing wiring harnesses. In addition, the existing wiring harnesses are generally hard, and forced bending will also greatly affect the service life of the wiring harnesses.

[0004] To this end, we proposed a waterproof and bend-resistant wiring harness. Utility Model Content

[0005] The utility model provides a waterproof and bending-resistant wire harness.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waterproof and bend-resistant wiring harness, comprising a heat shrinkable sleeve, the interior of the heat shrinkable sleeve is coated with a bend-resistant wiring harness, the outer surface of the heat shrinkable sleeve is sleeved with a bending tube, one end of the heat shrinkable sleeve is fixedly connected to a connecting wire, the other end of the heat shrinkable sleeve is equipped with a waterproof connector, and one end of the connecting wire is fixedly connected to an aviation plug.

[0007] Preferably, the waterproof connector includes a locking head, which is installed on one end of the heat shrink sleeve, and the other end of the locking head is fixedly connected to a connecting tube, a joint is fixedly installed on the bottom surface of the connecting tube, and a plurality of pins are fixedly installed on the bottom surface of the joint, which can greatly improve the overall waterproof performance when used outdoors and further improve the overall practicality.

[0008] Preferably, a label is provided on the outer surface of the bending tube, and the label is installed in the middle of the outer surface of the bending tube. Some data of the whole, such as length, etc., can be marked on the surface of the label, so that a suitable whole can be quickly selected when the whole is needed.

[0009] Preferably, the bending tube is fixedly sleeved with an elastic polyurethane tube inside, the elastic polyurethane tube is fixedly sleeved with a low-temperature PVC tube inside, the low-temperature PVC tube is fixedly sleeved with a polytetrafluoroethylene tube inside, and the inner wall of the polytetrafluoroethylene tube is fitted with the outer surface of the heat shrinkable sleeve, so that the bending-resistant wiring harness can maintain good performance when bending, the bending-resistant wiring harness can maintain flexibility at low temperatures, and the bending-resistant wiring harness can still maintain its curvature under extreme conditions.

[0010] Preferably, the connection between the aviation plug and the connecting line is wrapped with flannel tape, and the connection between the locking head and the heat shrink tubing is wrapped with flannel tape, which can effectively improve the protective effect of the connection.

[0011] Preferably, the width of the flannel tape is 30-50 MM.

[0012] Preferably, the bending tube is a closed corrugated tube, which further improves the bending resistance of the wiring harness.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a bending tube so that the bending-resistant wire harness can meet the requirements of secondary bending. The bending tube selects a closed corrugated tube, which is fixed to the wire harness with a heat shrink tubing. The bending-resistant wire harness and the bending tube are cut into required lengths, and then assembled with the waterproof connector by riveting and pressing, and glue is applied internally. Then, the bending tube is assembled, and finally, the bending tube and the heat shrink tubing are assembled to complete the overall assembly. By defining the material selection, the waterproof and wear-resistant characteristics are achieved, and the overall service life of the wiring harness is greatly increased.

[0015] 2. The utility model arranges an elastic polyurethane tube and a polytetrafluoroethylene tube. The elastic polyurethane tube has the characteristics of elasticity, softness and wear resistance, so that the bend-resistant wire harness can maintain good performance when bending. The low-temperature PVC tube has good low-temperature resistance and is suitable for cold environments, so that the bend-resistant wire harness maintains flexibility at low temperatures. The polytetrafluoroethylene tube has excellent chemical stability and high-temperature resistance, so that the bend-resistant wire harness can still maintain curvature under extreme conditions, thereby further improving the overall service life of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall front view structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the corrugated pipe of the utility model.

[0020] In the figure: 1. Heat shrink tubing; 2. Bending tube; 3. Connecting wire; 4. Aviation plug; 5. Waterproof connector; 6. Flannel tape; 7. Label; 8. Locking head; 9. Connecting tube; 10. Connector; 11. Pin; 12. Elastic polyurethane tube; 13. Low-temperature PVC tube; 14. Polytetrafluoroethylene tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-4 The figure shows a waterproof and bending-resistant wire harness, including a heat shrinkable sleeve 1, the interior of the heat shrinkable sleeve 1 is coated with a bending-resistant wire harness, the outer surface of the heat shrinkable sleeve 1 is sleeved with a bending tube 2, one end of the heat shrinkable sleeve 1 is fixedly connected to a connecting wire 3, the other end of the heat shrinkable sleeve 1 is installed with a waterproof connector 5, one end of the connecting wire 3 is fixedly connected to an aviation plug 4, and the bending tube 2 is a closed corrugated tube.

[0024] In this embodiment: the bending-resistant wiring harness can meet 10,000 times of 180-degree bending, the bending tube 2 selects a closed corrugated tube, and is fixed to the wiring harness with a heat shrink tube 1, the bending-resistant wiring harness and the bending tube 2 are cut into the required length, and then riveted and assembled with the waterproof connector 5, glue is applied inside, and then the bending tube 2 is assembled, and finally the bending tube 2 and the heat shrink tube 1 are assembled to complete the overall assembly. By defining the material selection, the waterproof and wear-resistant properties are achieved.

[0025] See also Figure 1-3 In the figure, the waterproof connector 5 includes a locking head 8, which is installed at one end of the heat shrinkable sleeve 1, and the other end of the locking head 8 is fixedly connected to a connecting tube 9, and a joint 10 is fixedly installed on the bottom surface of the connecting tube 9, and a plurality of pins 11 are fixedly installed on the bottom surface of the joint 10.

[0026] In this embodiment: the waterproof connector 5 has an IP67 waterproof grade and is connected to one end of the heat shrink tubing 1 by riveting, which can greatly improve the overall waterproof performance when used outdoors, further improve the overall practicality, and the waterproof connector 5 is easy and quick to assemble, which can save assembly time to a great extent.

[0027] See also Figure 1 In the figure, a label 7 is provided on the outer surface of the bent tube 2, and the label 7 is installed in the middle of the outer surface of the bent tube 2.

[0028] In this embodiment, some data of the whole, such as length, etc., can be marked on the surface of the label 7, so that when the whole is needed, a suitable whole can be quickly selected.

[0029] See also Figure 1 As shown in the figure, the connection between the aviation plug 4 and the connecting line 3 is wrapped with flannel tape 6, and the connection between the locking head 8 and the heat shrinkable sleeve 1 is wrapped with flannel tape 6, and the width of the flannel tape 6 is 30-50MM.

[0030] In this embodiment: it is necessary to wrap a 30-50mm velvet tape 6 around the welding root, and the root of the aviation plug 4 can only be wrapped once, and no more than that, to avoid affecting the assembly, which can effectively improve the protection effect of the connection.

[0031] Example 2

[0032] See also Figure 1 This embodiment further illustrates Example 1. In the figure, the inner part of the bending tube 2 is fixedly sleeved with an elastic polyurethane tube 12, the inner part of the elastic polyurethane tube 12 is fixedly sleeved with a low-temperature PVC tube 13, the inner part of the low-temperature PVC tube 13 is fixedly sleeved with a polytetrafluoroethylene tube 14, and the inner wall of the polytetrafluoroethylene tube 14 is in contact with the outer surface of the heat shrinkable tube 1.

[0033] In this embodiment: an elastic polyurethane tube 12, a low-temperature PVC tube 13 and a polytetrafluoroethylene tube 14 are provided, wherein the elastic polyurethane tube 12 has the characteristics of elasticity, softness and wear resistance, so that the bending-resistant wire harness can maintain good performance when bending, the low-temperature PVC tube 13 low-temperature PVC has good low-temperature resistance and is suitable for cold environments, so that the bending-resistant wire harness maintains flexibility at low temperatures, and the polytetrafluoroethylene tube 14 has excellent chemical stability and high-temperature resistance, so that the bending-resistant wire harness can still maintain curvature under extreme conditions.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include"-"comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process-method-article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process-method-article or device.

[0035] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof and bend-resistant wiring harness, comprising a heat shrink tubing (1), characterized in that: The interior of the heat shrinkable tube (1) is coated with a bending-resistant wire harness, the outer surface of the heat shrinkable tube (1) is sleeved with a bending tube (2), one end of the heat shrinkable tube (1) is fixedly connected to a connecting wire (3), the other end of the heat shrinkable tube (1) is installed with a waterproof connector (5), and one end of the connecting wire (3) is fixedly connected to an aviation plug (4).

2. A waterproof and bend-resistant wiring harness according to claim 1, characterized in that: The waterproof connector (5) comprises a locking head (8), the locking head (8) being mounted on one end of the heat shrink tubing (1), the other end of the locking head (8) being fixedly connected to a connecting tube (9), a joint (10) being fixedly mounted on the bottom surface of the connecting tube (9), and a plurality of pins (11) being fixedly mounted on the bottom surface of the joint (10).

3. A waterproof and bend-resistant wiring harness according to claim 2, characterized in that: The outer surface of the bent tube (2) is provided with a label (7), and the label (7) is installed in the middle part of the outer surface of the bent tube (2).

4. A waterproof and bend-resistant wiring harness according to claim 3, characterized in that: The bent tube (2) is fixedly sleeved with an elastic polyurethane tube (12), the elastic polyurethane tube (12) is fixedly sleeved with a low-temperature PVC tube (13), the low-temperature PVC tube (13) is fixedly sleeved with a polytetrafluoroethylene tube (14), and the inner wall of the polytetrafluoroethylene tube (14) is in contact with the outer surface of the heat shrinkable tube (1).

5. The waterproof and bend-resistant wiring harness according to claim 2, characterized in that: The connection between the aviation plug (4) and the connecting line (3) is wrapped with a flannel tape (6), and the connection between the locking head (8) and the heat shrink sleeve (1) is wrapped with a flannel tape (6).

6. A waterproof and bend-resistant wiring harness according to claim 5, characterized in that: The width of the flannel tape (6) is 30-50 MM.

7. The waterproof and bend-resistant wiring harness according to claim 6, characterized in that: The bent tube (2) is a closed-end corrugated tube.

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