wiring harness

Abstract

One embodiment of the present disclosure provides a wiring harness: in a configuration in which a shielding member is not electrically connected to a connector on the other side, a conductive check of the shielding member can be performed. The wiring harness (W) according to one embodiment of the present disclosure comprises: a first wiring harness (10) comprising a first electric wire (11), a first shielding member (12) and a first connector (15); a second wiring harness (20) comprising a second electric wire (21), a second shielding member (22) and a second connector (25); and a connecting member (30) electrically connecting a drain wire (14) of the first shielding member (12) and a drain wire (24) of the second shielding member (22). The drain wire (13) led out from the end of the first shielding member (12) on the side of the first connector (15) is grounded. The drain wire (23) led out from the end of the second shielding member (22) on the side of the second connector (25) is inserted into a cavity (27) of the second connector (25).

Description

Technical Field

[0001] The present disclosure relates to a wire harness. Background Art

[0002] For example, in the wiring harness of Patent Document 1, the electric wires are covered by a shielding member (a conductive layer in Patent Document 1) composed of a conductor, and a drain wire electrically connected to the shielding member is inserted into the cavity of a connector provided at the end of the wiring harness. The drain wire inserted into the cavity of the connector is electrically connected to a terminal provided in the cavity, and the terminal is connected to a terminal of a connector on the other side to which the connector of the wiring harness is connected. In the structure of Patent Document 1 as described above, since the drain wire is connected to the connector, the conductivity check of the shielding member including the drain wire can be performed through the connector.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 11-87008 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] Unlike Patent Document 1, in a configuration where the shielding member is not electrically connected to the mating connector, a cavity for a drain wire is generally not provided in the connector, and the drain wire for connection to the mating connector is also omitted. However, in this case, there is a problem in that the shielding member cannot be inspected for continuity through the connector.

[0008] Therefore, an object is to provide a wire harness in which a continuity check of a shield member can be performed in a configuration in which the shield member is not electrically connected to a mating connector.

[0009] Solutions to Problems

[0010] The wiring harness disclosed herein comprises: an electric wire; a connector connected to one end of the electric wire; a cylindrical shielding member covering the electric wire; and a drain wire electrically connected to the shielding member, led out from the end of the shielding member on the connector side, and the drain wire is inserted into the cavity of the connector.

[0011] In addition, the wiring harness disclosed herein comprises a first wiring harness, a second wiring harness and a connecting member, the first wiring harness comprising: a first electric wire; a first cylindrical shielding member covering the first electric wire; a pair of drain wires led out from both ends in the longitudinal direction of the first shielding member; and a first connector arranged at one end of the first electric wire, the second wiring harness comprising: a second electric wire; a second cylindrical shielding member covering the second electric wire; a pair of drain wires led out from both ends in the longitudinal direction of the second shielding member; and a second connector arranged at one end of the second electric wire, the connecting member electrically connects the drain wire led out from the end of the first shielding member on the opposite side of the first connector and the drain wire led out from the end of the second shielding member on the opposite side of the second connector, the drain wire led out from the end of the first shielding member on the first connector side is grounded, and the drain wire led out from the end of the second shielding member on the second connector side is inserted into the cavity of the second connector.

[0012] Effects of the Invention

[0013] According to the present disclosure, it is possible to provide a wire harness capable of performing a continuity check of a shield member in a configuration in which the shield member is not electrically connected to a mating connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of a wire harness in the embodiment.

[0015] Figure 2 It is an explanatory diagram for explaining a method of conducting a continuity test of the shield member in this method.

[0016] Figure 3 It is a schematic structural diagram of a wire harness in a modified example.

[0017] Figure 4 is a diagram of the header connector. DETAILED DESCRIPTION

[0018] [Description of Embodiments of the Present Disclosure]

[0019] First, embodiments of the present disclosure will be described below.

[0020] The wiring harness disclosed herein,

[0021] [1] It comprises: an electric wire; a connector connected to one end of the electric wire; a cylindrical shielding member covering the electric wire; and a noise-draining wire electrically connected to the shielding member and led out from the end of the shielding member on the connector side, wherein the noise-draining wire is inserted into the cavity of the connector.

[0022] According to this structure, the noise suppression wire electrically connected to the shielding member is inserted into the cavity of the connector of the wiring harness, so that the conductivity check of the shielding member can be performed through the connector. Here, the so-called connector cavity refers to a cavity where there is no corresponding terminal in the other side connector connected to the connector.

[0023] In addition, the wiring harness of the present disclosure,

[0024] [2] A wiring harness comprising: a first wire; a first cylindrical shielding member covering the first wire; a pair of drain wires extending from both ends of the first shielding member in a longitudinal direction; and a first connector provided at one end of the first wire; and a second wiring harness comprising: a second wire; a second cylindrical shielding member covering the second wire; a pair of drain wires extending from both ends of the second shielding member in a longitudinal direction; and a second connector provided at one end of the second wire. The connecting member connects the first wire to the second wire. One of the drain wires led out from the end of the first shielding member on the side opposite to the first connector and one of the pair of drain wires of the second wiring harness led out from the end of the second shielding member on the side opposite to the second connector are electrically connected, the other drain wire of the pair of drain wires of the first wiring harness led out from the end of the first connector side of the first shielding member is grounded, and the other drain wire of the pair of drain wires of the second wiring harness led out from the end of the second connector side of the second shielding member is inserted into the cavity of the second connector.

[0025] According to this configuration, the drain wire electrically connected to the second shielding member is inserted into the cavity of the second connector, thereby enabling a continuity check between the first and second shielding members to be performed via the second connector. Here, the cavity of the second connector refers to a cavity in which no corresponding terminal exists in the mating connector to which the second connector is connected.

[0026] [3] Preferably, the other drain wire of the pair of drain wires of the first harness, the drain wire drawn out from the end portion of the first shield member on the first connector side, is connected to the first connector.

[0027] According to this configuration, the continuity test of the first shield member and the second shield member can be performed via the first connector and the second connector.

[0028] [4] Preferably, the connecting member is a connecting portion.

[0029] According to this configuration, even when the connection member connecting the first shield member and the second shield member is a joint portion that is not suitable for a continuity test, the continuity test of the first shield member and the second shield member can be performed.

[0030] [5] Preferably, there is a third wiring harness, which comprises: a third electric wire; a tubular third shielding member covering the third electric wire; a pair of drain wires drawn out from both ends of the third shielding member in the longitudinal direction; and a third connector provided at one end of the third electric wire, wherein one drain wire of the pair of drain wires of the third wiring harness drawn out from the end of the third shielding member on the side opposite to the third connector is electrically connected to the first shielding member and the second shielding member via the connecting member, and the other drain wire of the pair of drain wires of the third wiring harness drawn out from the end of the third shielding member on the side of the third connector is inserted into a cavity in the second connector that is different from the cavity.

[0031] According to this configuration, even when the third connector of the third harness does not have a cavity, the continuity check of the third shielding member can be performed via the second connector.

[0032] [Details of the embodiments of the present disclosure]

[0033] The following is a reference to the attached Figure 1 The present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims and equivalents.

[0034] like Figure 1 As shown, the vehicle wiring harness W of this embodiment includes a first wiring harness 10 and a second wiring harness 20. The wiring harness W also includes a connecting member 30 for electrically connecting the drain wire 14 of the first wiring harness 10 and the drain wire 24 of the second wiring harness 20.

[0035] (1st harness 10)

[0036] The first wiring harness 10 comprises: a plurality of first electric wires 11; a tubular first shielding member 12, which covers the plurality of first electric wires 11; a pair of noise-draining wires 13 and 14, which are led out from both ends of the length direction of the first shielding member 12; and a first connector 15, which is arranged at one end of the first electric wire 11.

[0037] The first shielding member 12 can be formed by rolling a metal foil into a cylindrical shape, or by braiding a plurality of metal wires into a cylindrical shape. Furthermore, the outer periphery of the first shielding member 12 is covered by a cylindrical outer member (not shown). Each of the drain wires 13 and 14 is electrically connected to the first shielding member 12.

[0038] One end portion of each first electric wire 11 is inserted into the first connector 15 and connected to a terminal 16 provided in the first connector 15. The other end portion of each first electric wire 11 is connected to a device (not shown) mounted on the vehicle.

[0039] The first connector 15 is a so-called wire-to-wire type connector. Terminals 16 of the first connector 15 are connected to terminals 42 of a mating connector 41 connected to the first connector 15. Terminals 42 of the mating connector 41 are connected to wires 44, which are connected to a device (not shown) mounted on the vehicle.

[0040] One of the pair of drain wires 13 and 14, drain wire 13, is inserted into the first connector 15 and connected to a terminal 17 provided on the first connector 15. Terminal 17 of the first connector 15 is connected to a terminal 43 of a mating connector 41 connected to the first connector 15. An electric wire 45 connected to terminal 43 of the mating connector 41 is grounded to the vehicle body, a ground terminal, or the like.

[0041] (Second harness 20)

[0042] The second wiring harness 20 includes: a plurality of second electric wires 21; a tubular second shielding member 22 that covers the plurality of second electric wires 21; a pair of noise-draining wires 23 and 24 that are led out from both ends of the length direction of the second shielding member 22; and a second connector 25 that is arranged at one end of the second electric wire 21.

[0043] The second shielding member 22 can be formed by rolling a metal foil into a cylindrical shape, or by braiding a plurality of metal wires into a cylindrical shape. Furthermore, the outer periphery of the second shielding member 22 is covered by a cylindrical outer member (not shown). Each of the drain wires 23 and 24 is electrically connected to the second shielding member 22.

[0044] One end portion of each second electric wire 21 is inserted into the second connector 25 and connected to a terminal 26 provided on the second connector 25. The other end portion of each second electric wire 21 is connected to a device (not shown) mounted on the vehicle.

[0045] The second connector 25 is a so-called wire-to-wire type connector. Terminals 26 of the second connector 25 are connected to terminals 47 of a mating connector 46 connected to the second connector 25. Terminals 47 of the mating connector 46 are connected to wires 48, which are connected to a device D1 mounted on the vehicle.

[0046] One drain wire 23 of the pair of drain wires 23 and 24 is inserted into the cavity 27 of the second connector 25. The counterpart connector 46 connected to the second connector 25 is not provided with a terminal corresponding to the cavity 27 of the second connector 25. Furthermore, no terminal is provided in the cavity 27 in this embodiment.

[0047] (Connecting member 30)

[0048] The connecting member 30 is a so-called splice part, and is formed by providing a metal terminal 32 in a housing 31. The drain wire 14 of the first shielding member 12 and the drain wire 24 of the second shielding member 22 are inserted into the housing 31 and connected to the metal terminal 32. Thus, the drain wires 14 and 24 are electrically connected to each other via the metal terminal 32.

[0049] Here, the difference between the connection member 30 as a joint portion and the joint connector 60 which is different from the connection member 30 as a joint portion will be described.

[0050] Figure 4 1 shows an example of a configuration in which a joint connector 60 is used instead of the connection member 30 of the above embodiment. The housing 61 of the joint connector 60 is composed of at least two parts: a connector housing 62 and a terminal housing 63. The terminal housing 63 is configured to be attachable to and detachable from the connector housing 62.

[0051] The connector housing 62 has a plurality of cavities, and the drain wire 14 of the first shielding member 12 and the drain wire 24 of the second shielding member 22 are inserted into the cavity 62a and the cavity 62b, respectively. On the other hand, the terminal housing 63 has a metal terminal 64 inside, and the metal terminal 64 has a first terminal portion 64a and a second terminal portion 64b integrally formed therein.

[0052] When the terminal housing 63 is installed on the connector housing 62, the terminal 14a provided at the top end of the drain wire 14 and arranged in the cavity 62a is connected to the first terminal portion 64a of the metal terminal 64. In addition, when the terminal housing 63 is installed on the connector housing 62, the terminal 24a provided at the top end of the drain wire 24 and arranged in the cavity 62b is connected to the second terminal portion 64b of the metal terminal 64. That is, in this state, the drain wires 14 and 24 are electrically connected to each other via the metal terminal 64 of the terminal housing 63. On the other hand, when the terminal housing 63 is removed from the connector housing 62, the connection state of the terminals 14a and 24a through the metal terminal 64 is released, and the drain wires 14 and 24 are not electrically connected to each other.

[0053] like Figure 1 As shown, unlike the joint connector 60 described above, the connection member 30 of this embodiment, which is composed of a connection portion, has cavities 31a and 31b formed in the housing 31. The housing 31 accommodates metal terminals 32 that conduct the drain wires 14 and 24, and the drain wires 14 and 24 are inserted into the cavities 31a and 31b. Therefore, compared with the joint connector 60, the structure of the connection member 30 is simplified and miniaturized.

[0054] The operation of this embodiment will be described.

[0055] Figure 2 2 shows a method for conducting a continuity test on the first shield member 12 and the second shield member 22. As shown in the figure, a galvanometer A having a first terminal A1 and a second terminal A2 is used to conduct a continuity test on the first shield member 12 and the second shield member 22. During the continuity test, the first connector 15 is disconnected from the mating connector 41. Furthermore, the second connector 25 is disconnected from the mating connector 46.

[0056] Furthermore, the first terminal A1 connected to the galvanometer A is inserted into the cavity of the first connector 15 that accommodates the terminal 17 connected to the drain wire 13 of the first shielding member 12, so that the first terminal A1 contacts the terminal 17. Furthermore, the second terminal A2 connected to the galvanometer A is inserted into the cavity 27 of the second connector 25 that accommodates the drain wire 23 of the second shielding member 22, so that the second terminal A2 contacts the drain wire 23. Thus, the galvanometer A can be used to check whether current is flowing properly in the circuit including the first shielding member 12 and the second shielding member 22.

[0057] The effects of this embodiment will be described.

[0058] (1) The drain wire 23 drawn out from the end portion of the second shielding member 22 on the second connector 25 side is inserted into the cavity 27 of the second connector 25. According to this configuration, the drain wire 23 electrically connected to the second shielding member 22 is inserted into the cavity 27 of the second connector, thereby enabling a continuity check of the first shielding member 12 and the second shielding member 22 via the second connector. Here, the cavity 27 of the second connector refers to a cavity in which a corresponding terminal does not exist in the counterpart connector connected to the second connector.

[0059] (2) The drain wire 13 drawn out from the end of the first shield member 12 on the first connector 15 side is connected to the first connector 15. This configuration enables a continuity check of the first shield member 12 and the second shield member 22 via the first connector 15 and the second connector.

[0060] (3) The connecting member 30 connecting the first shielding member 12 and the second shielding member 22 is set as a joint portion. The joint portion is more advantageous for miniaturization than the joint connector 60, but it is difficult to make the terminals of the galvanometer contact the noise-draining wires 14 and 24 in the housing 31. However, when the noise-draining wire 23 of the second shielding member 22 is inserted into the cavity 27 of the second connector 25 as in the present embodiment, the conductivity check of the first shielding member 12 and the second shielding member 22 can be performed even if the connecting member 30 is set as a joint portion that is not suitable for the conductivity check.

[0061] This embodiment can be implemented with the following modifications: This embodiment and the following modifications can be implemented in combination with each other within a range that does not technically conflict.

[0062] ·It can also be changed to Figure 3 The structure of the wiring harness W1 shown in FIG. Figure 3 In the description of the configuration of the wire harness W1 shown, the same configurations as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment, and detailed description thereof is omitted.

[0063] Figure 3 The vehicle wiring harness W1 shown includes a first wiring harness 10, a second wiring harness 20, and a third wiring harness 50. The wiring harness W1 also includes a connecting member 30 for electrically connecting the drain wire 14 of the first wiring harness 10, the drain wire 24 of the second wiring harness 20, and the drain wire 54 of the third wiring harness 50.

[0064] The first wire harness 10 has the same configuration as that of the above-described embodiment.

[0065] The second wiring harness 20 has substantially the same configuration as the above-described embodiment. The second connector 25 of the second wiring harness 20 has at least two cavities 27 and 28. The mating connector 46 connected to the second connector 25 does not have terminals corresponding to the cavities 27 and 28 of the second connector 25, nor do the cavities 27 and 28 of the second connector 25 have terminals.

[0066] The third wiring harness 50 comprises: a plurality of third electric wires 51; a tubular third shielding member 52, which covers the plurality of third electric wires 51; a pair of noise-draining wires 53, 54, which are led out from both ends of the length direction of the third shielding member 52; and a third connector 55, which is arranged at one end of the third electric wire 51.

[0067] The third shielding member 52 can be formed by rolling a metal foil into a cylindrical shape, or by braiding a plurality of metal wires into a cylindrical shape. Furthermore, the outer periphery of the third shielding member 52 is covered by a cylindrical outer member (not shown). Each of the drain wires 53 and 54 is electrically connected to the third shielding member 52.

[0068] One end of each third electric wire 51 is connected to the device D2 mounted on the vehicle via a third connector 55. The third connector 55 is a connector connected to the connector connection portion of the device D2 and does not have a cavity like the second connector 25.

[0069] One drain wire 53 in the third harness 50 is inserted into the cavity 28 of the second connector 25. That is, the second connector 25 has a cavity 27 into which the drain wire 23 of its own system is inserted, and a cavity 28 into which the drain wire 53 in the third harness 50 of another system is inserted. In addition, the third shielding member 52 and the second shielding member 22 are arranged at positions close to each other.

[0070] In the wire harness W1, the drain wire 14 of the first shielding member 12, the drain wire 24 of the second shielding member 22, and the drain wire 54 of the third shielding member 52 are inserted into the housing 31 of the connecting member 30 and connected to the metal terminals 32 in the housing 31. Thus, the drain wires 14, 24, and 54 are electrically connected to each other via the metal terminals 32.

[0071] The continuity test of the first shield member 12, the second shield member 22, and the third shield member 52 in the wire harness W1 will be described. The continuity test uses the same galvanometer A as in the above embodiment (see FIG. 1 ). Figure 2 During the continuity check, the first connector 15 is disconnected from the mating connector 41 , and the second connector 25 is disconnected from the mating connector 46 .

[0072] Furthermore, the first terminal A1 connected to the galvanometer A is inserted into the cavity of the first connector 15 that accommodates the terminal 17 connected to the drain wire 13 of the first shielding member 12, so that the first terminal A1 contacts the terminal 17. Furthermore, the second terminal A2 connected to the galvanometer A is inserted into the cavity 27 of the second connector 25 that accommodates the drain wire 23 of the second shielding member 22, so that the second terminal A2 contacts the drain wire 23. Thus, the galvanometer A can be used to check whether current is flowing properly in the circuit including the first shielding member 12 and the second shielding member 22.

[0073] In addition, the first terminal A1 connected to the galvanometer A is inserted into the cavity of the first connector 15 that accommodates the terminal 17 connected to the drain wire 13 of the first shielding member 12, so that the first terminal A1 contacts the terminal 17. Furthermore, the second terminal A2 connected to the galvanometer A is inserted into the cavity 28 of the second connector 25 that accommodates the drain wire 53 of the third shielding member 52, so that the second terminal A2 contacts the drain wire 53. In this way, the galvanometer A can be used to check whether current is flowing properly in the circuit including the first shielding member 12 and the third shielding member 52.

[0074] According to the above configuration, the drain wire 53 led out from the end portion of the third shielding member 52 on the third connector 55 side is inserted into the cavity 28 of the second connector 25, which is different from the cavity 27 into which the drain wire 23 of the second shielding member 22 is inserted. Thus, even if no cavity is set in the third connector 55 of the third wiring harness 50, the continuity check of the third shielding member 52 can be performed via the second connector 25.

[0075] In the wiring harness W of the above embodiment, a terminal may be provided which is mounted on the top end of the drain wire 23 and is disposed in the cavity 27. This makes it easy to conduct the second terminal A2 of the galvanometer A and the drain wire 23. Figure 3 The wire harness W1 of the illustrated configuration may include terminals mounted on the distal ends of the drain wires 23 and 53 and arranged in the respective cavities 27 and 28 .

[0076] In the above embodiment, the connection member 30 is used as a joint portion, but the present invention is not limited thereto, and a joint connector 60 may be used instead of the connection member 30 .

[0077] In the above embodiment, the wiring harness W includes a plurality of wiring harnesses (the first wiring harness 10 and the second wiring harness 20). However, the wiring harness W may also be configured to include only the second wiring harness 20. In this case, the drain wire 24 of the second shield member 22 is grounded.

[0078] ·like Figures 1 to 3 As shown, the cavity 27 of the second connector 25 may also be a through-path or through-hole through which the second connector 25 passes. Figures 1 to 3 As shown, the second connector 25 may also have a connection end face that faces, contacts, or abuts against the counterpart connector 46. Figure 2 As shown, the second terminal A2 of the galvanometer A can also be connected to the noise-reducing wire 23 in the cavity 27 from the connecting end surface of the second connector 25.

[0079] Description of Reference Numerals

[0080] W harness

[0081] 10 1st wiring harness

[0082] 11 First Wire

[0083] 12. First shielding member

[0084] 13 Drain wire

[0085] 14 Drain wire

[0086] 14a terminal

[0087] 15 1st connector

[0088] 16 terminals

[0089] 17 terminals

[0090] 20 2nd wiring harness

[0091] 21. Second electric wire (electric wire)

[0092] 22. Second shielding member (shielding member)

[0093] 23 Drain wire

[0094] 24 Drain wire

[0095] 24a terminal

[0096] 25 2nd connector (connector)

[0097] 26 terminals

[0098] 27 Cavity

[0099] 28 Cavity

[0100] 30 Connecting member (joint)

[0101] 31 housing

[0102] Cavity 31a

[0103] Cavity 31b

[0104] 32 metal terminals

[0105] 41 Connector on the other side

[0106] 42 terminals

[0107] 43 terminals

[0108] 44 Wires

[0109] 45 Wire

[0110] 46 Connector on the other side

[0111] 47 terminals

[0112] 48 wires

[0113] A. Galvanometer

[0114] A1 1st terminal

[0115] A2 Terminal 2

[0116] D1 device

[0117] D2 Device

[0118] W1 wiring harness

[0119] 50 3rd wiring harness

[0120] 51 3rd wire

[0121] 52 3rd shielding member

[0122] 53 Drain wire

[0123] 54 Drain wire

[0124] 55 3rd connector

[0125] 60 header connector

[0126] 61 housing

[0127] 62 Connector housing

[0128] Cavity 62a

[0129] 62b cavity

[0130] 63 with terminal housing

[0131] 64 metal terminals

[0132] 64a 1st terminal part

[0133] 64b Second terminal

Claims

1. A wire harness comprising a first wire harness, a second wire harness, and a connecting member, The first wiring harness comprises: a first electric wire; a first cylindrical shielding member covering the first electric wire; a pair of drain wires extending from both ends of the first shielding member in the longitudinal direction; and a first connector provided at one end of the first electric wire. The second wiring harness comprises: a second electric wire; a second cylindrical shielding member covering the second electric wire; a pair of drain wires extending from both ends of the second shielding member in the longitudinal direction; and a second connector provided at one end of the second electric wire. The connecting member electrically connects one of the pair of drain wires of the first wiring harness, which is led out from the end of the first shielding member on the side opposite to the first connector, and one of the pair of drain wires of the second wiring harness, which is led out from the end of the second shielding member on the side opposite to the second connector. The other drain wire of the pair of drain wires of the first harness, which is led out from the end portion of the first shield member on the first connector side, is grounded. The other drain wire of the pair of drain wires of the second harness, which is drawn out from the end portion of the second shield member on the second connector side, is inserted into the cavity of the second connector.

2. The wire harness according to claim 1, wherein The other drain wire of the pair of drain wires of the first harness, which is drawn out from an end portion of the first shield member on the first connector side, is connected to the first connector.

3. The wire harness according to claim 1, wherein The connecting member is a joint portion.

4. The wire harness according to any one of claims 1 to 3, wherein A third wiring harness is provided, the third wiring harness comprising: a third electric wire; a cylindrical third shielding member covering the third electric wire; a pair of drain wires extending from both ends of the third shielding member in the longitudinal direction; and a third connector provided at one end of the third electric wire, One of the pair of drain wires of the third wiring harness, which is led out from the end portion of the third shielding member on the side opposite to the third connector, is electrically connected to the first shielding member and the second shielding member via the connecting member. The other drain wire of the pair of drain wires of the third harness, which is led out from the end portion of the third shield member on the third connector side, is inserted into a cavity in the second connector that is different from the cavity.

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