Shielded wire harness, wire harness assembly and vehicle

Abstract

The utility model provides a shielding wire harness, a wire harness assembly and a vehicle, and relates to the technical field of vehicle parts, the shielding wire harness comprises a plurality of wire cores and a shielding layer wrapped outside the plurality of wire cores, each wire core comprises a conductor and an insulating layer wrapped outside the conductor, the shielding layer comprises a metal conductor and a first shielding member, and the first shielding member is arranged between the metal conductor and the first shielding member. The metal conductor is wound outside the plurality of wire cores, and the first shielding piece coats the outer side of a first assembly formed by the metal conductor and the plurality of wire cores. Thus, the wire diameter and the occupied space of the whole strand of shielding wire harness can be effectively reduced, interference abrasion between the shielding wire harness and peripheral parts in a limited arrangement space is avoided, the number of wire cores in the shielding wire harness can be flexibly designed according to the number of signals needing to be shielded, the application range of the shielding wire harness is wider, and the shielding wire harness is more convenient to use. And meanwhile, the production cost of the shielding wire harness can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and more specifically, to a shielded wire harness, a wire harness assembly, and a vehicle. Background Technology

[0002] For new energy vehicles, shielded wiring harnesses are required to connect to various controllers or sensors to achieve efficient signal transmission while isolating electromagnetic radiation interference from external electrical equipment. However, after deducting the space occupied by the components, the space available for the shielded wiring harnesses is limited.

[0003] When multiple signals need to be shielded, multi-core shielded wires, such as 2-core, 4-core, or 6-core shielded wires, are typically combined into a shielded wire bundle. In this case, the shielded wire bundle mainly consists of multiple multi-core shielded wires, an insulation layer covering the multiple shielded wires, and a protective layer covering the insulation layer. Each multi-core shielded wire mainly consists of multiple cores, a shielding layer covering the multiple cores, and an insulation layer covering the shielding layer. Because the insulation layer of the multi-core shielded wires is relatively thick, the shielded wire bundle occupies a lot of space, making it prone to failure due to interference and wear within the limited arrangement space. This not only shortens the service life of the shielded wire bundle but also affects vehicle safety. Furthermore, the shielding layer of the multi-core shielded wire located in the central area of ​​the entire shielded wire bundle is not fully utilized, resulting in resource waste and increased costs. Utility Model Content

[0004] The problem this invention solves is: how to reduce the space occupied by the shielding harness while ensuring the shielding effect.

[0005] To address the aforementioned problems, this utility model provides a shielded wire harness, a wire harness assembly, and a vehicle.

[0006] In a first aspect, this utility model provides a shielded wire harness, comprising multiple wire cores and a shielding layer covering the multiple wire cores. Each wire core includes a conductor and an insulating layer covering the conductor. The shielding layer includes a metal conductor and a first shielding element. The metal conductor is wound around the multiple wire cores, and the first shielding element covers the outside of a first assembly composed of the metal conductor and the multiple wire cores.

[0007] Optionally, the metal conductor is spirally wound from one end of the plurality of wire cores to the other end, and the first shielding member covers one end of the first component to the other end.

[0008] Optionally, the shielding layer further includes a plurality of second shielding elements spaced apart along the length direction of the wire core, the second shielding elements being wound around the outside of the first component, and the first shielding elements covering the outside of the second component composed of the second shielding elements, the metal conductor, and the plurality of wire cores.

[0009] Optionally, the first shielding member and the second shielding member are one of metal foil, conductive tape, metal foil tape, and metal braided mesh.

[0010] Optionally, the shielded wire harness may further include a protective sleeve that covers the shielding layer.

[0011] Optionally, the protective sleeve is one of cloth tape, plastic tube, fiberglass tube, or corrugated tube.

[0012] Secondly, this utility model provides a wire harness assembly, including two connectors, multiple connection terminals, and a shielded wire harness as described above, wherein the two ends of each core of the shielded wire harness are respectively connected to the two connectors through the connection terminals.

[0013] Thirdly, this utility model provides a vehicle, including the shielded wiring harness or the wiring harness assembly described above.

[0014] The beneficial effects of this shielded wire harness are as follows: By covering multiple insulating wire cores with a shielding layer to form a shielded wire harness, compared with the related technology that uses multiple multi-core shielded wires to form a shielded wire harness, on the one hand, the insulation layer of each multi-core shielded wire can be eliminated, effectively reducing the wire diameter and space occupied by the entire shielded wire harness. This avoids interference and wear between the shielded wire harness and surrounding components in the limited arrangement space, thereby extending the service life of the shielded wire harness and improving vehicle driving safety. On the other hand, the number of wire cores in the shielded wire harness can be flexibly designed according to the number of signals to be shielded, making the application range of the shielded wire harness wider and reducing the production cost of the shielded wire harness. Furthermore, by covering multiple wire cores with a shielding layer, the shielding layer of the entire shielded wire harness can be fully utilized, thereby solving the problem of resource waste in shielded wire harnesses in related technologies. Furthermore, the shielding layer is configured to include a metal conductor and a first shielding element. The metal conductor is wound around multiple wire cores, and the first shielding element is wrapped around the outside of the first assembly composed of the metal conductor and multiple wire cores. This further enhances the electromagnetic interference resistance of the shielded wire harness by utilizing the metal conductor, building upon the first shielding element. Moreover, the metal conductor can be used to bundle the multiple wire cores, reducing the gaps between them and thus further reducing the wire diameter and space occupied by the shielded wire harness. Additionally, the metal conductor can be obtained by stripping the insulation layer from additional wire cores, thereby reducing the manufacturing difficulty of the metal conductor. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the wire harness assembly in an embodiment of the present invention;

[0016] Figure 2 This is a partial structural diagram of the wire core when part of the insulation layer is removed in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the metal conductor wound around multiple wire cores in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the second shielding element wrapped around the metal conductor and multiple wire cores in an embodiment of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the double-ended grounded wire harness assembly in an embodiment of this utility model;

[0020] Figure 6 This is a schematic diagram of the wire harness assembly in this embodiment of the present invention when a single metal conductor is used to achieve double-end grounding;

[0021] Figure 7 This is a schematic diagram of the wire harness assembly in this embodiment of the present invention when two metal conductors are used to achieve double-end grounding;

[0022] Figure 8 This is a schematic diagram of another case of the double-ended grounded wire harness assembly in this utility model embodiment;

[0023] Figure 9 This is a schematic diagram of the wire harness assembly in this utility model embodiment when a metal conductor is connected to two grounding terminals to achieve double-ended grounding;

[0024] Figure 10 This is a schematic diagram of the single-end grounded wire harness assembly in an embodiment of the present invention;

[0025] Figure 11 This is a schematic diagram of the wire harness assembly in this utility model embodiment when a single-ended grounding is achieved by connecting a metal conductor and a connector.

[0026] Figure 12 This is a schematic diagram of another case of a single-end grounded wire harness assembly in this utility model embodiment;

[0027] Figure 13 This is a schematic diagram of the wire harness assembly in this embodiment of the present invention, where a metal conductor is connected to a grounding terminal to achieve single-end grounding.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Core wire; 11. Conductor; 12. Insulation layer; 20. Shielding layer; 21. Metallic conductor; 22. First shielding component; 23. Second shielding component; 30. Protective sleeve;

[0030] 100, Shielded wire harness; 200, Connector; 210, First connector; 220, Second connector; 300, Connecting terminal; 400, Grounding terminal. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0032] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0033] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0034] In related technologies, when multiple signals need to be shielded, multi-core shielded wires, such as 2-core, 4-core, or 6-core shielded wires, are typically combined into a shielded wire bundle. In this case, the shielded wire bundle mainly consists of multiple multi-core shielded wires, an insulation layer covering the multiple multi-core shielded wires, and a protective layer covering the insulation layer. The multi-core shielded wires themselves mainly consist of multiple wire cores, a shielding layer covering the multiple wire cores, and an insulation layer covering the shielding layer. Because the insulation layer of the multi-core shielded wires is relatively thick, the shielded wire bundle occupies a lot of space, making it prone to failure due to interference and wear within the limited arrangement space. This not only shortens the service life of the shielded wire bundle but also affects vehicle safety. Furthermore, the shielding layer of the multi-core shielded wire located in the central area of ​​the entire shielded wire bundle is not fully utilized, resulting in resource waste and increased costs.

[0035] To address the problems existing in the aforementioned related technologies, this utility model provides a shielded wire harness, a wire harness assembly, and a vehicle.

[0036] Combination Figures 1 to 4 As shown, an embodiment of the present invention provides a shielded wire harness 100, which includes multiple wire cores 10 and a shielding layer 20 covering the multiple wire cores 10. The wire cores 10 include conductors 11 and an insulating layer 12 covering the conductors 11. The shielding layer 20 includes a metal conductor 21 and a first shielding member 22. The metal conductor 21 is wound around the multiple wire cores 10, and the first shielding member 22 covers the outside of the first component composed of the metal conductor 21 and the multiple wire cores 10.

[0037] Specifically, the wire core 10 is a conductor 11 covered by an insulating material (i.e., insulation layer 12). One wire core 10 can transmit one set of signals, while multiple wire cores 10 can transmit multiple sets of signals. In other words, the number of wire cores 10 can be selected according to the signals to be transmitted; for example, the number of wire cores 10 can be designed to be 6, 7, 8, or 9. The shielding layer 20 mainly includes two parts: a metal conductor 21 and a first shielding element 22. The metal conductor 21 can be copper wire or aluminum wire, etc. In practical applications, to reduce production difficulty, the conductor 11 of the additional wire cores 10 after removing the insulation layer 12 can be used as the metal conductor 21. Furthermore, the metal conductor 21 is wound spirally around the outside of the multiple wire cores 10. The first shielding element 22 can be copper foil tape or aluminum foil tape, etc. During production, the first shielding element 22 can be completely wrapped around the outside of the first assembly composed of the metal conductor 21 and the multiple wire cores 10. Furthermore, the number of metallic conductors 21 can be one or more, and can be selected according to shielding requirements in practical applications, for example... Figure 5 The example given is when the metallic conductor 21 is provided with a certain condition. Figure 6 An example is given when there are two metallic conductors 21.

[0038] In this embodiment, a shielded wire harness 100 can be formed by covering multiple wire cores 10 with insulation layers 12 with shielding layer 20. Compared with the related technology of using multiple multi-core shielded wires to form a shielded wire harness, on the one hand, the insulation layer of each multi-core shielded wire can be eliminated, effectively reducing the wire diameter and space occupied by the entire shielded wire harness 100. This avoids interference and wear between the shielded wire harness 100 and its surrounding components in a limited arrangement space, thereby extending the service life of the shielded wire harness and improving the safety of vehicle operation. On the other hand, the number of wire cores 10 in the shielded wire harness 100 can be flexibly designed according to the number of signals to be shielded, making the application range of the shielded wire harness 100 wider and reducing the production cost of the shielded wire harness 100. Furthermore, by covering multiple wire cores 10 with shielding layer 20, the shielding layer 20 of the entire shielded wire harness 100 can be fully utilized, thereby solving the problem of resource waste in shielded wire harnesses in the related technology. Furthermore, the shielding layer 20 is configured to include a metal conductor 21 and a first shielding element 22. The metal conductor 21 is wound around the multiple wire cores 10, and the first shielding element 22 is wrapped around the outside of the first assembly composed of the metal conductor 21 and the multiple wire cores 10. This further enhances the electromagnetic interference resistance of the shielded wire harness 100 by utilizing the metal conductor 21 based on the first shielding element 22. Moreover, the metal conductor 21 can be used to bundle the multiple wire cores 10, reducing the gap between the multiple wire cores 10, thereby further reducing the wire diameter and space occupied by the shielded wire harness 100. In addition, the metal conductor 21 can be obtained by stripping the insulation layer 12 from the additional wire cores 10, thereby reducing the manufacturing difficulty of the metal conductor 21.

[0039] Optionally, combined Figure 6 , Figure 7 , Figure 9 , Figure 11 and Figure 13 As shown, the metal conductor 21 is spirally wound from one end of the multiple wire cores 10 to the other. This not only improves the binding effect of the metal conductor 21 on the multiple wire cores 10, but also increases the coverage area and uniformity of the metal conductor 21 on the outside of the multiple wire cores 10, thereby improving the electromagnetic interference resistance of the shielding layer 20. In addition, extending both ends of the metal conductor 21 to both ends of the multiple wire cores 10 facilitates grounding.

[0040] Specifically, the multi-turn structure of the spirally wound metal conductor 21 is spaced apart to ensure shielding uniformity while minimizing the amount of metal conductor 21 used and reducing the space occupied by the shielding layer 20.

[0041] Optionally, combined Figure 4 , Figure 6 and Figure 7As shown, the shielding layer 20 also includes a plurality of second shielding elements 23 spaced apart along the length of the core 10. The second shielding elements 23 are wrapped around the outside of the first assembly, and the first shielding elements 22 cover the outside of the second assembly composed of the second shielding elements 23, the metal conductor 21, and the plurality of cores 10. The second shielding elements 23 can also be metal foil tape such as copper foil tape or aluminum foil tape. Furthermore, the second shielding elements 23 can be wrapped around the outside of the first assembly, for example, by dot wrapping, to fix the metal conductor 21 to the outside of the plurality of cores 10.

[0042] In this way, during production, the metal conductor 21 can be pre-fixed using the second shield 23 to improve the convenience of covering the first shield 22. Moreover, by using multiple second shields 23 spaced apart along the length of the wire core 10 to fix the metal conductor 21 at multiple points, the overall volume of the shielded wire harness 100 becomes more compact, and the wire diameter of the shielded wire harness 100 becomes more uniform along its length, thus facilitating its arrangement.

[0043] Optionally, combined Figure 6 , Figure 7 , Figure 9 , Figure 11 and Figure 13 As shown, the first shielding element 22 covers the first component from one end to the other. In this way, the first shielding element 22 can cover the entire outer side of the multiple wire cores 10, thereby improving the electromagnetic interference resistance of the shielding layer 20.

[0044] Optionally, the first shielding element 22 and the second shielding element 23 are one of metal foil, conductive tape, metal foil tape, and metal braided mesh. Since metal foil and metal braided mesh are both conductive and have good ductility, when metal foil or metal braided mesh is used as the first shielding element 22 and the second shielding element 23, the first shielding element 22 and the second shielding element 23 can be shaped while being wrapped, i.e., they will not loosen. Since conductive tape and metal foil tape are both conductive, adhesive, and elastic, when conductive tape or metal foil tape is used as the first shielding element 22 and the second shielding element 23, the first shielding element 22 and the second shielding element 23 can also be well fixed to the outside of the multiple wire cores 10. This improves the binding effect of the first shielding element 22 and the second shielding element 23 on the multiple wire cores 10, and also facilitates repeated bending of the shielded wire bundle 100.

[0045] Optionally, combined Figure 1 As shown, the shielded wire harness 100 also includes a protective sleeve 30, which covers the shielding layer 20. In this way, the protective sleeve 30 can protect the wire core 10 and the shielding layer 20 of the shielded wire harness 100, thereby extending the service life of the shielded wire harness 100.

[0046] Optionally, the protective sleeve 30 can be one of cloth tape, plastic tubing, fiberglass tubing, or corrugated tubing. In practical applications, the appropriate type of protective sleeve 30 can be selected as needed, and no specific limitation is made here. This allows the protective sleeve 30 to be directly obtained from the market without the need for additional design, thereby reducing the design difficulty and manufacturing process of the shielded wire harness 100.

[0047] Combination Figure 1 , Figure 5 , Figure 8 , Figure 10 and Figure 12 As shown, the present invention provides a wire harness assembly including two connectors 200, multiple connection terminals 300, and a shielded wire harness 100 as described above. The two ends of each wire core 10 of the shielded wire harness 100 are respectively connected to the two connectors 200 through the connection terminals 300, and one or both ends of the metal conductor 21 of the shielded wire harness 100 are used for grounding.

[0048] In this embodiment, the connector 200 can be used to connect to electrical components such as vehicle controllers or actuators. Each end of each wire core 10 is inserted into two connectors 200 via a connecting terminal 300. The connection between the wire core 10 and the connecting terminal 300 can be achieved by crimping. Furthermore, one or both ends of the metal conductor 21 can be grounded by inserting it into the grounding hole of the connector 200 or connecting it to the grounding terminal 400 (described later), thereby effectively conducting interference current to the ground and improving the anti-interference capability of the shielded wire harness 100. In addition, the beneficial effects of the wire harness assembly in this embodiment are the same as those of the shielded wire harness 100 described above, and will not be repeated here.

[0049] Optionally, combined Figure 5 , Figure 6 , Figure 7 , Figure 10 and Figure 11 As shown, the end of the metal conductor 21 of the shielded wire harness 100 is inserted into the grounding hole of the connector 200 through the connecting terminal 300.

[0050] In this optional embodiment, for ease of description, the two connectors 200 can be referred to as the first connector 210 and the second connector 220, respectively. When the metal conductor 21 is provided, as shown... Figure 5 and Figure 6 As shown, the two ends of the metal conductor 21 can be inserted into the grounding holes of the first connector 210 and the second connector 220 respectively through the connecting terminals 300 to achieve double-ended grounding; Figure 10 and Figure 11As shown, one end of the metal conductor 21 can also be inserted into the grounding hole of the first connector 210 or the second connector 220 through the connecting terminal 300 to achieve single-end grounding. When there are two metal conductors 21, as shown... Figure 7 As shown, one end of a metal conductor 21 near the first connector 210 can be inserted into the grounding hole of the first connector 210 through the connecting terminal 300, and the other end of a metal conductor 21 near the second connector 220 can be inserted into the grounding hole of the second connector 220 through the connecting terminal 300 to achieve double-ended grounding; alternatively, one end of each of the two metal conductors 21 can be inserted into the grounding hole of the same connector 200 through the connecting terminal 300 to achieve single-ended grounding. Moreover, using the method of inserting one or both ends of the metal conductor 21 into the grounding hole of the connector 200 through the connecting terminal 300 to achieve grounding not only makes the wire harness assembly more compact, but also allows the connector 200 to protect the grounding end of the metal conductor 21, reducing the risk of the grounding end of the metal conductor 21 becoming loose.

[0051] Optionally, combined Figure 8 , Figure 9 , Figure 12 and Figure 13 As shown, the wire harness assembly also includes a grounding terminal 400, and one or both ends of the metal conductor 21 of the shielded wire harness 100 are respectively connected to the grounding terminal 400.

[0052] In this optional embodiment, when the metal conductor 21 is provided, such as Figure 8 and Figure 9 As shown, the two ends of the metal conductor 21 can be connected to the two grounding terminals 400 respectively to achieve double-ended grounding, allowing the wiring harness assembly to be used as a double-ended grounded vehicle wiring harness; as Figure 12 and Figure 13 As shown, one end of the metal conductor 21 can also be connected to the grounding terminal 400 to achieve single-end grounding, allowing the wiring harness assembly to be used as a single-end grounded vehicle wiring harness. When there are two metal conductors 21, one end of the metal conductor 21 near the first connector 210 can be connected to the grounding terminal 400, and the other end of the metal conductor 21 near the second connector 220 can be connected to the grounding terminal 400 to achieve double-end grounding; alternatively, the ends of both metal conductors 21 near the first connector 210 (or the second connector 220) can be connected to the grounding terminal 400 to achieve single-end grounding, allowing the wiring harness assembly to be used as a single-end grounded vehicle wiring harness. Moreover, by connecting one or both ends of the metal conductor 21 to the grounding terminal 400 respectively to achieve grounding, it is not necessary to provide a grounding hole on the connector 200, thereby simplifying the structure of the connector 200.

[0053] This utility model provides a vehicle including the shielded wiring harness 100 as described above or the wiring harness assembly as described above.

[0054] The beneficial effects of the vehicle in this embodiment are the same as those of the shielded wiring harness 100 described above, and will not be repeated here.

[0055] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A shielded wire harness characterized by, It includes multiple wire cores (10) and a shielding layer (20) covering the multiple wire cores (10). Each wire core (10) includes a conductor (11) and an insulating layer (12) covering the conductor (11). The shielding layer (20) includes a metal conductor (21) and a first shielding element (22). The metal conductor (21) is wound around the multiple wire cores (10), and the first shielding element (22) covers the outside of the first assembly composed of the metal conductor (21) and the multiple wire cores (10).

2. The shielded wire harness according to claim 1, characterized in that, The metal conductor (21) is spirally wound from one end of the plurality of wire cores (10) to the other end, and the first shield (22) covers one end of the first component to the other end.

3. The shielded wire harness according to claim 1, characterized in that, The shielding layer (20) further includes a plurality of second shielding elements (23) spaced apart along the length direction of the wire core (10). The second shielding elements (23) are wrapped around the outside of the first component, and the first shielding element (22) covers the outside of the second component composed of the second shielding element (23), the metal conductor (21) and the plurality of wire cores (10).

4. The shielded wire harness according to claim 3, characterized in that, The first shielding element (22) and the second shielding element (23) are one of metal foil, conductive tape, metal foil tape and metal braided mesh.

5. The shielded wire harness according to claim 1, characterized in that, It also includes a protective sleeve (30) that covers the shielding layer (20).

6. The shielded wire harness according to claim 5, characterized in that, The protective sleeve (30) is one of the following: cloth tape, plastic tube, fiberglass tube, or corrugated tube.

7. A wire harness assembly, characterized in that, It includes two connectors (200), a plurality of connection terminals (300), and a shielded wire harness as described in any one of claims 1-6, wherein the two ends of each wire core (10) of the shielded wire harness are respectively connected to the two connectors (200) through the connection terminals (300).

8. The wire harness assembly according to claim 7, characterized in that, The end of the metal conductor (21) of the shielded wire harness is inserted into the grounding hole of the connector (200) through the connecting terminal (300).

9. The wire harness assembly according to claim 7, characterized in that, It also includes a grounding terminal (400), one or both ends of the metal conductor (21) of the shielded wire harness are respectively connected to the grounding terminal (400).

10. A vehicle, characterized in that, Includes the shielded wire harness as described in any one of claims 1-6, or the wire harness assembly as described in any one of claims 7-9.

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