Braided wire harness easy to bend, bending device and production method

Abstract

The invention provides an easy-to-bend braided wire harness, a bending device and a production method, which are applied to the field of braided wire harnesses, and are characterized in that the easy-to-bend braided wire harness comprises a core wire mounted on a connector, one end, close to the connector, of the core wire is bent to form a release ring, and the release ring is lengthened when the core wire is pulled; the protection layer group is used for wrapping the core wire and comprises a thermal shrinkage woven mesh pipe which wraps one end, close to the connector, of the core wire and wraps the release ring, and the thermal shrinkage woven mesh pipe is clamped and fixed by a cable clamp of the connector; the braid layer is coated on the rest part of the core wire; the wire harness connector has the technical effects that the pulling force on the core wire and the terminal of the connector when the wire harness is bent can be reduced, and the damage probability of the connector is reduced.

Description

Technical Field

[0001] The invention relates to the field of braided wire harnesses, and in particular to an easily bendable braided wire harness, a bending device and a production method. Background Art

[0002] Please refer to Figure 1 When the high-horsepower gas engine harness transfer connector is connected to the transfer connector on the control cabinet 12, the tail of the transfer connector will bend due to the weight of the harness and installation requirements.

[0003] Currently, braided wire harnesses are braided to the tail of the connector cable clamp, and then braided back for a section to finish, and fixed by the connector cable clamp to prevent the braided wire from spreading during use, and then repaired with a hot air gun. However, the core wire will be tightened and the hardness of the wire harness will be increased during braiding. Braiding back at the connection between the wire harness and the connector will further increase the hardness of the part of the wire harness close to the connector, which is the part that is most prone to hanging and bending during use. When the end of the wire harness is bent, the core wire on the outside of the bend is easily broken or the core wire is pulled, causing the terminal to be stressed, and the terminal is pulled out of the connector, causing damage to the connector. Summary of the invention

[0004] A first aspect of the present invention provides a braided wire harness that is easy to bend, which has the advantage of being able to reduce the tension on the core wires and the terminals of the connector when the wire harness is bent, and reduce the probability of connector damage.

[0005] A second aspect of the present invention provides a bending device.

[0006] A third aspect of the present invention provides a method for producing a flexible braided wire harness.

[0007] To achieve the above-mentioned and other related purposes, the first aspect of the present invention provides the following technical solution: a bendable braided wire harness, comprising:

[0008] A core wire installed in the connector, wherein one end of the core wire close to the connector is bent with a release ring, and the release ring is stretched when the core wire is subjected to tension;

[0009] The protective layer group used to cover the core wire includes a heat shrinkable braided mesh tube covering one end of the core wire close to the connector and covering the release ring, the heat shrinkable braided mesh tube is clamped and fixed by the connector cable clamp; and a braided layer covering the remaining part of the core wire.

[0010] Through the above technical solution, after the connector is inserted into the installation position, the wiring harness will be in a suspended state due to its own weight. At this time, the connection between the wiring harness and the connector will bend. When bending, the release ring will be stretched, thereby providing a margin for the deformation of the core wire when it is bent and stretched, so that the core wire does not form stress, avoiding the core wire from being torn off and the terminal from being pulled out by force, thereby avoiding damage to the core wire and the connector; the heat shrinkable braided mesh tube and the braided layer are used to aggregate the core wire and protect the core wire. At the same time, the braided layer is not directly covered on the outside of the release ring. The part of the wiring harness covered by the heat shrinkable braided mesh tube will not be affected by the hardness of the braided layer when bending, so that the part where the core wire is connected to the connector is easier to bend.

[0011] In one embodiment of the present invention, the release ring is configured to be spiral-shaped.

[0012] Through the above technical solution, the spiral release ring has good retraction and extension capabilities, so that the release ring can be stretched and contracted when the wire harness is bent, thereby enhancing the durability of the wire harness.

[0013] In one embodiment of the present invention, a plurality of core wires are provided, and the release rings provided on the plurality of core wires are staggered.

[0014] Through the above technical solution, the thickness of the core wire will be enhanced after being bent into a release ring, so that the multiple release rings are staggered to avoid the accumulation of multiple release rings causing part of the wire harness to be too thick, thereby limiting the bending ability of the wire harness.

[0015] In one embodiment of the present invention, the braided layer is braided back at the end to form a braided layer.

[0016] The above technical solution can prevent the braided layer from unraveling and enhance the strength of the wire harness.

[0017] The second aspect of the present invention provides the following technical solution: a bending device, for bending the above-mentioned release ring, comprising:

[0018] A base, a rotating shaft is rotatably connected to the base, a winding rod is coaxially fixed to the rotating shaft, and a wire insertion hole is provided on the rotating shaft for inserting the core wire so that the core wire rotates with the rotating shaft; and

[0019] A rotary drive member is used for driving the rotating shaft to rotate so that the core wire is wound around the winding rod to form a release loop when the portion of the core wire not inserted into the wire insertion hole is manually fixed.

[0020] Through the above technical solution, when in use, the end of the core wire is inserted into the wire insertion hole opened on the rotating shaft, and then the remaining part of the core wire is manually fixed. The rotating driving member drives the rotating shaft to rotate. During rotation, the part of the core wire inserted into the wire insertion hole rotates around the axis line with the rotating shaft, while the other part of the core wire is manually restricted from rotating, so that the core wire is wound around the winding rod and bent into a release ring.

[0021] The third aspect of the present invention provides the following technical solution: a method for producing an easily bendable braided wire harness, characterized in that the method is used to produce the above-mentioned easily bendable braided wire harness, comprising:

[0022] S1. Using the bending device as claimed in claim 5 to obtain a core wire bent with a release ring;

[0023] S2, aggregate the core wires, and sleeve the heat shrink braided mesh tube on the core wires;

[0024] S3, connect the core wire to the connector;

[0025] S4, pull the heat shrink braided mesh tube to the end of the core wire, shrink the heat shrink braided mesh tube to the core wire with a hot air gun, and clamp and fix the heat shrink braided mesh tube with a connector cable clamp;

[0026] S5. Use braided wire to weave a braided layer outside the core wire.

[0027] As described above, the easily bendable braided wire harness of the present invention has the following beneficial effects:

[0028] After the connector is inserted into the installation position, the wiring harness will be in a suspended state due to its own weight. At this time, the connection between the wiring harness and the connector will bend. When bending, the release ring will be stretched, thereby providing a margin for the core wire to deform when being bent and stretched, so that the core wire does not form stress, avoiding the core wire from being torn and the terminal from being pulled out by force, thereby avoiding damage to the core wire and the connector; the heat shrinkable braided mesh tube and the braided layer are used to aggregate the core wire and protect the core wire. At the same time, the braided layer is not directly covered on the outside of the release ring. The part of the wiring harness covered by the heat shrinkable braided mesh tube will not be affected by the hardness of the braided layer when bending, making the part where the core wire and the connector are connected easier to bend. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram showing that the wiring harness disclosed in the prior art of the present invention is installed in a control cabinet.

[0030] Figure 2 It is a schematic diagram showing the easy-to-bend braided wire harness disclosed in Example 1 of the present invention installed in a control cabinet.

[0031] Figure 3 A cross-sectional view of the easily bendable braided wire harness disclosed in Embodiment 1 of the present invention is shown.

[0032] Figure 4 A schematic diagram showing a connector for a flexible braided wire harness disclosed in Embodiment 1 of the present invention.

[0033] Figure 5 Shown is a schematic diagram of the bending device disclosed in Example 2 of the present invention.

[0034] Description of technical feature numbers in the accompanying drawings:

[0035] 1. Core wire; 2. Connector; 3. Release ring; 4. Heat shrink braided mesh tube; 5. Connector cable clamp; 6. Braided layer; 7. Back-braided layer; 8. Base; 9. Rotating shaft; 10. Winding rod; 11. Wire insertion hole; 12. Control cabinet. DETAILED DESCRIPTION

[0036] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0037] Example 1

[0038] See also Figure 2 and Figure 3 , this embodiment provides a bendable braided wire harness, comprising:

[0039] A plurality of core wires 1 are installed on the connector 2, and the core wires 1 are connected to the connector 2 through terminals. A release ring 3 is bent at one end of each core wire 1 close to the connector 2. When the core wire 1 is subjected to tension, the release ring 3 is elongated to provide a deformation amount of the core wire 1 when the wiring harness is bent, so that no stress is generated inside the core wire 1, thereby preventing the core wire 1 from being broken or the terminal from being pulled out of the connector 2.

[0040] See also Figure 3 , several release rings 3 are staggered to avoid the release rings 3 being concentrated together to cause the wire harness to be too thick and limit the bending ability of the wire harness.

[0041] See also Figure 3 The release ring 3 is set to a spiral type, and the spiral release ring 3 has good retraction and elongation capabilities, so that the release ring 3 is stretched and contracted when the wire harness is bent, ensuring that the wire harness can be bent freely for multiple times, thereby enhancing the durability of the wire harness.

[0042] See also Figure 3 and Figure 4 , also includes a protective layer group for covering the core wire 1, including a heat shrinkable braided mesh tube 4 covering one end of the core wire 1 close to the connector 2 and covering the release ring 3, the heat shrinkable braided mesh tube 4 is clamped and fixed by the connector cable clamp 5, the heat shrinkable braided mesh tube 4 is sleeved on the core wire 1 before heat shrinkage, and tightly covers the core wire 1 after heat shrinkage; and a braided layer 6 covering the remaining part of the core wire 1, the braided layer 6 is braided back at the end to form a back-braided layer 7, the back-braided layer 7 can prevent the braided layer 6 from spreading and enhance the strength of the wire harness; the end of the braided layer 6 is tightly fitted with the end of the heat shrinkable braided mesh tube 4, and the braided layer 6 is fixed by the friction between the braided layer 6 and the heat shrinkable braided mesh tube 4.

[0043] After the connector 2 of this embodiment is inserted into the installation position, the wiring harness will be in a suspended state due to its own weight. At this time, the connection between the wiring harness and the connector 2 will be bent. When bending, the release ring 3 will be stretched, thereby providing a margin for the deformation of the core wire 1 when it is bent and stretched, so that the core wire 1 does not form stress, avoiding the core wire 1 from being torn off and the terminal being pulled out by force, thereby avoiding damage to the core wire 1 and the connector 2; the heat shrinkable braided mesh tube 4 and the braided layer 6 are used to aggregate the core wire 1 and protect the core wire 1. At the same time, the braided layer 6 is not directly covered on the outside of the release ring 3. The part of the wiring harness covered by the heat shrinkable braided mesh tube 4 will not be affected by the hardness of the braided layer 6 when bending, so that the part where the core wire 1 is connected to the connector 2 is easier to bend.

[0044] Example 2

[0045] See also Figure 5 This embodiment provides a bending device for bending the release ring 3 disclosed in Embodiment 1, comprising:

[0046] A base 8 is rotatably connected to a rotating shaft 9, a winding rod 10 is coaxially fixed to the rotating shaft 9, a wire insertion hole 11 is opened on the rotating shaft 9 for inserting the core wire 1 so that the core wire 1 rotates with the rotating shaft 9, and the length direction of the wire insertion hole 11 is the same as the axial direction of the rotating shaft 9 and is set offset from the axis of the rotating shaft 9, so that the rotating shaft 9 drives the core wire 1 to rotate and causes the core wire 1 to revolve around the axis of the rotating shaft 9.

[0047] See also Figure 5 It also includes a rotating driving member for driving the rotating shaft 9 to rotate so that the core wire 1 is wound around the winding rod 10 when the part of the core wire 1 that is not inserted into the wire insertion hole 11 is manually fixed to form a release ring 3. The rotating driving member is configured as a servo motor or a stepping motor. The number of revolutions of the driving rotating shaft 9 is set by a program to control the number of threads of the release ring 3 after forming.

[0048] When in use, the end of the core wire 1 is inserted into the wire insertion hole 11 provided on the rotating shaft 9, and then the remaining part of the core wire 1 is manually fixed. The rotating driving member drives the rotating shaft 9 to rotate. During rotation, the part of the core wire 1 inserted into the wire insertion hole 11 rotates around the axis with the rotating shaft 9, while the other part of the core wire 1 is manually restricted from rotating, so that the core wire 1 is wound around the winding rod 10 and bent to form a release ring 3.

[0049] Example 3

[0050] This embodiment provides a method for producing an easily bendable braided wire harness, which is used to produce the easily bendable braided wire harness disclosed in Embodiment 1, comprising:

[0051] S1, using the bending device of Example 2 to obtain a core wire 1 bent with a release ring 3;

[0052] S2, aggregate the core wire 1, and sleeve the heat shrink braided mesh tube 4 on the core wire 1;

[0053] S3, connect core wire 1 to connector 2;

[0054] S4, pull the heat shrink braided mesh tube 4 to the end of the core wire 1, and cover the release ring 3 inside, shrink the heat shrink braided mesh tube 4 onto the core wire 1 by using a hot air gun, and clamp and fix the heat shrink braided mesh tube 4 by using the connector cable clamp 5;

[0055] S5. Use a braided wire to weave a braided layer 6 outside the core wire 1.

[0056] Furthermore, the braided layer 7 is formed at the end of the braided layer 6, which can prevent the braided layer 6 from spreading and enhance the strength of the wire harness. The end of the braided layer 6 is tightly fitted with the end of the heat shrinkable braided mesh tube 4, and the braided layer 6 is fixed by the friction between the braided layer 6 and the heat shrinkable braided mesh tube 4.

[0057] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A bendable braided wire harness, characterized in that: include: A core wire (1) installed on a connector (2), wherein one end of the core wire (1) close to the connector (2) is bent with a release ring (3), and when the core wire (1) is subjected to tension, the release ring (3) is stretched; A protective layer group for covering the core wire (1), The invention comprises a heat shrinkable braided mesh tube (4) covering one end of the core wire (1) close to the connector (2) and covering the release ring (3), wherein the heat shrinkable braided mesh tube (4) is clamped and fixed by a connector cable clamp (5); and a braided layer (6) covering the remaining part of the core wire (1).

2. The bendable braided wire harness according to claim 1, characterized in that: The release ring (3) is configured to be spiral-shaped.

3. The bendable braided wire harness according to claim 1, characterized in that: A plurality of core wires (1) are provided, and the release rings (3) provided on the plurality of core wires (1) are arranged in staggered positions.

4. The bendable braided wire harness according to claim 1, characterized in that: The braided layer (6) is braided back at the end to form a braided layer (7).

5. A bending device, characterized in that: Used to bend the release ring (3) as claimed in any one of claims 1 to 4, comprising: A base (8), a rotating shaft (9) is rotatably connected to the base (8), a winding rod (10) is coaxially fixed to the rotating shaft (9), and a wire insertion hole (11) is provided on the rotating shaft (9) for inserting the core wire (1) so that the core wire (1) rotates along with the rotating shaft (9); and A rotating drive member is used to drive the rotating shaft (9) to rotate so that the core wire (1) is wound around the winding rod (10) when the portion of the core wire (1) not inserted into the wire insertion hole (11) is manually fixed to form a release ring (3).

6. A method for producing a bendable braided wire harness, characterized in that: Used to produce the easily bendable braided wire harness as described in any one of claims 1 to 4, comprising: S1. Using the bending device as claimed in claim 5 to obtain a core wire (1) bent with a release ring (3); S2, the core wire (1) is aggregated, and a heat shrinkable braided mesh tube (4) is sheathed on the core wire (1); S3, connecting the core wire (1) to the connector (2); S4, pull the heat shrinkable braided mesh tube (4) to the end of the core wire (1), shrink the heat shrinkable braided mesh tube (4) onto the core wire (1) using a hot air gun, and clamp and fix the heat shrinkable braided mesh tube (4) using a connector cable clamp (5); S5. Use a braided wire to braid a braided layer (6) outside the core wire (1).

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