Wire harness

Abstract

The utility model belongs to the technical field of wire rod processing, and discloses a wire harness. The system comprises a bus, one end of the bus is branched to form at least two groups of branch lines, the outer side of the bus is wrapped with a first protective sleeve, the outer sides of the branch lines are wrapped with a second protective sleeve, and the second protective sleeve is inserted into the first protective sleeve; the wire harness further comprises a binding belt, and the binding belt sequentially penetrates through a cavity defined by the second protective sleeve and then is connected to the first protective sleeve in a winding mode. The problem that a bus and a branch line in a wire harness cannot be protected by a protective sleeve in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wire rod processing, especially to a wire harness. BACKGROUND

[0002] A sensor will be installed in the airplane engine, and the sensor transmits electrical signals to the cabin or the command post, and the signals transmitted by the sensor are connected by wires, wherein a bus is connected with multiple branch wires at the same time, and a protective sleeve is wrapped outside the bus and the branch wire to protect the internal wire, but at the junction of the bus and the branch wire, a large-angle bending occurs, and the protective sleeves of the bus and the branch wire are independent of each other due to the different diameters, so that the joint of the bus and the branch wire is exposed and cannot be protected by the protective sleeve, and the wire harness is prone to wear and tear, which reduces the reliability of the wire harness, and in addition, the joint of the bus and the branch wire is prone to breakage due to the large stress after bending, and the working environment around the engine is harsh and the vibration is large, which causes the material wrapped outside the wire to fall off and lose the protection of the internal wire, so the wire is directly exposed outside, and if the wire is damaged, the path where the wire is located cannot be conducted, and the real-time working information of the engine cannot be transmitted, and the protective sleeve needs to be damaged during maintenance, and a new protective sleeve needs to be replaced or the damaged position needs to be repaired after maintenance, which prolongs the maintenance time. SUMMARY

[0003] The utility model discloses a wire harness, which solves the problem that the bus and the branch wire in the wire harness cannot be protected by the protective sleeve.

[0004] To achieve this purpose, the utility model adopts the following technical scheme: the utility model provides a wire harness, which comprises a bus, the bus is bifurcated at one end to form at least two groups of branch wires, the outer side of the bus is wrapped with a first protective sleeve, the outer side of the branch wire is wrapped with a second protective sleeve, and the second protective sleeve is inserted into the first protective sleeve; the wire harness further comprises a binding belt, which is successively inserted into the cavity surrounded by the second protective sleeve and then wound on the first protective sleeve.

[0005] Preferably, the first protective sleeve is made of PEEK monofilament and aramid fiber.

[0006] Preferably, the second protective sleeve is made of PEEK monofilament and aramid fiber.

[0007] Preferably, the cross section of the first protective sleeve is in the shape of C, and a binding belt is sleeved outside the first protective sleeve.

[0008] As preferably, the second protective sleeve is in C shape in cross section, and a binding belt is sleeved outside the second protective sleeve.

[0009] As preferably, the wire harness further comprises a first shrink sleeve, which is sleeved at the intersection of the first protective sleeve and the second protective sleeve, and the diameter of the first shrink sleeve is reduced after being heated.

[0010] As preferably, the wire harness further comprises a second shrink sleeve, which is sleeved on the second protective sleeve, one end of the second shrink sleeve is inserted into the first protective sleeve, and the diameter of the second shrink sleeve is reduced after being heated.

[0011] As preferably, the wire harness is inserted into the connector hook tail inner or the connector tail clamp, the first protective sleeve or the second protective sleeve is inserted into the first butt joint hole formed in the connector hook tail inner, and the first protective sleeve or the second protective sleeve is inserted into the second butt joint hole formed in the connector tail clamp.

[0012] Beneficial effects: the second protective sleeve is inserted into the first protective sleeve, so that the second protective sleeve protects the branch line at the branch of the main line and the branch line, avoids that the internal wire harness is directly exposed outside, then all the second protective sleeves and the first protective sleeves are connected together through the binding belt, so that the second protective sleeve can still be inserted into the first protective sleeve during the bending or vibration process of the wire harness, the relative position of the first protective sleeve and the second protective sleeve remains consistent, the internal wire harness is protected, the wire harness is avoided to be exposed outside, and the reliability of the wire harness is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is the binding of the binding belt of the utility model schematic diagram;

[0014] Fig. 2 is the first shrink sleeve and the second shrink sleeve installation schematic diagram of the utility model.

[0015] In the drawing: 1, main line;2, branch line;3, first protective sleeve;4, second protective sleeve;5, binding belt;6, first shrink sleeve;7, second shrink sleeve. DETAILED DESCRIPTION

[0016] The utility model will be explained further in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0017] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation.For the ordinary skill in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0018] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0019] In the description of the embodiment, the terms "up", "down", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0020] Under the prior art, the protective sleeve is respectively sleeved with the outer side of the branch line and the bus, after violent vibration or bending in the wiring process, the wire inside the protective sleeve at the intersection of the branch line and the bus will be exposed outside, which will cause the risk of wire breakage, if the internal wire is overhauled, the entire protective sleeve needs to be damaged, after the overhaul is completed, the protective sleeve needs to be sleeved again or the original damaged part needs to be fixed again, resulting in long maintenance time.

[0021] In order to solve the above problems, such as Figs. 1-2As shown, the utility model provides this kind of wire harness, it includes busbar 1, and busbar 1 one end bifurcation forms at least two groups of branch line 2, and busbar 1 outside is wrapped with first protective sleeve 3, and branch line 2 outside is wrapped with second protective sleeve 4, and second protective sleeve 4 is inserted in first protective sleeve 3;Wire harness still includes binding tape 5, and binding tape 5 is successively threaded through the cavity surrounded by second protective sleeve 4 and is bound or is arranged on first protective sleeve 3, or still can adopt other fixed mode, and uses binding tape 5 and is bound to the periphery of all second protective sleeve 4, then will be bound again on first protective sleeve 3, its purpose is all through different fixed mode, first, second protective sleeve 4 is fixed together, then first protective sleeve 3 and second protective sleeve 4 are fixed together, can avoid the relative displacement between first protective sleeve 3 and second protective sleeve 4.

[0022] Second protective sleeve 4 is inserted in the inside of first protective sleeve 3, so it can be protected that busbar 1 and branch line 2 meet the position through second protective sleeve 4, then binding tape 5 fixes first protective sleeve 3 and all second protective sleeve 4 together, makes the relative position between first protective sleeve 3 and second protective sleeve 4 not change after wire harness in the process of wiring through large angle bending, avoids the exposure of internal branch line 2 and busbar 1, and simultaneously, after first protective sleeve 3 and second protective sleeve 4 pass through high frequency vibration in engine, the relative position between the two is fixed through binding tape 5, avoids the busbar 1 and branch line 2 of exposed inner wall, makes the reliability of wire harness higher, and the protection of internal busbar 1 and branch line 2 is more close.

[0023] The first protective sleeve 3 and the second protective sleeve 4 of the utility model are made of PEEK monofilament and aramid fiber, and the protective sleeve made of such material can withstand high temperature and low temperature, can self-extinguish after ignition, and also has certain flame-retardant effect, so that the protection ability of the wire harness is higher, and the reliability of the wire harness working in a high temperature environment is higher.

[0024] It should be particularly noted that the material used for the first protective sleeve 3 and the second protective sleeve 4 of the utility model is not limited to the above-mentioned material, and different materials can be switched according to changes in the working environment.

[0025] The cross section of the first protective sleeve 3 is C-shaped, and the first protective sleeve 3 is sleeved with a binding belt on the outside. The cross section of the second protective sleeve 4 is C-shaped, and the second protective sleeve 4 is sleeved with a binding belt on the outside, or the first protective sleeve 3 and the second protective sleeve 4 are directly sleeved on the outside of the busbar 1 and the branch line 2 without a binding belt.

[0026] In this way, when the internal bus 1 and the branch line 2 are overhauled, the binding belt can be removed, the first protective sleeve 3 can be directly opened, the internal bus 1 can be overhauled, and the second protective sleeve 4 can be directly opened and the branch line 2 can be overhauled. The first protective sleeve 3 and the second protective sleeve 4 are not damaged, and replacement or mending is not required, so that the efficiency of the overhaul is higher. The first protective sleeve 3 and the second protective sleeve 4 of the utility model are in a C shape. When the first protective sleeve 3 and the second protective sleeve 4 are tightened, the first protective sleeve 3 and the second protective sleeve 4 form a cylindrical cavity, and the corresponding bus 1 and branch line 2 are protected.

[0027] The wire harness further comprises a first shrink sleeve 6, the first shrink sleeve 6 is sleeved at the intersection of the first protective sleeve 3 and the second protective sleeve 4, the diameter of the first shrink sleeve 6 is reduced after being heated, the wire harness further comprises a second shrink sleeve 7, the second shrink sleeve 7 is sleeved on the second protective sleeve 4, one end of the second shrink sleeve 7 is inserted into the first protective sleeve 3, and the diameter of the second shrink sleeve 7 is reduced after being heated.

[0028] First, the second shrink sleeve 7 is sleeved outside the second protective sleeve 4, the diameter of the second shrink sleeve 7 is reduced after being heated by a hot air gun, so that the second shrink sleeve 7 can be wrapped on the second protective sleeve 4. Then, the first shrink sleeve 6 is sleeved at the joint of the bus 1 and the branch line 2, and the first shrink sleeve 6 is wrapped outside the second shrink sleeve 7 by heating the hot air gun again, so that the double-layer fixing is realized. In addition, the first protective sleeve 3 and the second protective sleeve 4 of the utility model can also be an integrated structure. During installation, the integrated first protective sleeve 3 and the second protective sleeve 4 are sleeved at the joint of the bus 1 and the branch line 2, and then the first protective sleeve 3 and the second protective sleeve 4 are fixed at the intersection of the bus 1 and the branch line 2 by heating

[0029] It should be particularly pointed out that the utility model can also fix the bus 1 and the branch line 2 by winding adhesive tape between the bus 1 and the branch line 2.

[0030] The wire harness end of the utility model is inserted into the connector hook tail inner or the connector tail tail clamp; the first protective sleeve 3 or the second protective sleeve 4 is inserted into the first butt joint hole formed in the connector hook tail inner, and the first protective sleeve 3 or the second protective sleeve 4 is inserted into the second butt joint hole formed in the connector tail tail clamp.

[0031] The first protective sleeve 3 and the second protective sleeve 4 can be inserted into the connector hook tail inner or the connector tail tail clamp, so that the sealing performance of the wire harness is higher, and the reliability of the wire harness in use is higher.

[0032] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A wiring harness characterized by, The wire harness comprises a bus (1) bifurcated at one end to form at least two groups of branches (2), a first protective sleeve (3) wrapped outside the bus (1), a second protective sleeve (4) wrapped outside the branches (2), and the second protective sleeve (4) inserted into the first protective sleeve (3); the wire harness further comprises a binding tape (5) inserted into the cavity surrounded by the second protective sleeve (4) and then wound around the first protective sleeve (3).

2. The wire harness of claim 1, wherein, The first protective sleeve (3) is made of PEEK monofilament and aramid fiber.

3. The wire harness of claim 2, wherein, The second protective sleeve (4) is made of PEEK monofilament and aramid fiber.

4. The wire harness of claim 1, wherein, The first protective sleeve (3) has a C-shaped cross section, and a binding tape is sleeved outside the first protective sleeve (3).

5. The wire harness of claim 1, wherein, The second protective sleeve (4) has a C-shaped cross section, and a binding tape is sleeved outside the second protective sleeve (4).

6. The wire harness of claim 1, wherein, The wire harness further comprises a first shrink sleeve (6) sleeved at the intersection of the first protective sleeve (3) and the second protective sleeve (4), and the first shrink sleeve (6) shrinks in diameter after being heated.

7. The wire harness of claim 6, wherein, The wire harness further comprises a second shrink sleeve (7) sleeved on the second protective sleeve (4), and the second shrink sleeve (7) is inserted into the first protective sleeve (3) at one end, and the second shrink sleeve (7) shrinks in diameter after being heated.

8. The wire harness of claim 1, wherein, The wire harness is inserted into the connector hook tail inner or the connector tail tail clamp; the connector hook tail inner is provided with a first mating hole, and the first protective sleeve (3) or the second protective sleeve (4) is inserted into the first mating hole; the connector tail tail clamp is provided with a second mating hole, and the first protective sleeve (3) or the second protective sleeve (4) is inserted into the second mating hole.

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