Search

CN-116057801-B - Wire harness

CN116057801BCN 116057801 BCN116057801 BCN 116057801BCN-116057801-B

Abstract

A wire harness (10) according to one embodiment of the present disclosure is provided with a 1 st tubular member (40) made of metal, a braided wire (70) attached to an outer peripheral surface (40 b) of the 1 st tubular member (40), a 2 nd tubular member (60) made of metal, the braided wire (70) being fixed to the outer peripheral surface (40 b) of the 1 st tubular member (40), and a protector (90) fixed to an inner peripheral surface (60 a) of the 2 nd tubular member (60), and the lead-out portion (21) of the electric wire member (20) not covered by the 1 st tubular member (40) being covered. The 2 nd tubular member (60) has a protruding portion (63), and the protruding portion (63) protrudes from the inner peripheral surface (60 a) of the 2 nd tubular member (60) toward the outer peripheral surface (40 b) of the 1 st tubular member (40), and presses the knitting yarn (70) against the outer peripheral surface (40 b) of the 1 st tubular member (40).

Inventors

  • Muto Ryuta
  • ITO KATSUTOSHI
  • TANAKA KOSUKE

Assignees

  • 住友电装株式会社

Dates

Publication Date
20260508
Application Date
20210729
Priority Date
20200916

Claims (13)

  1. 1. A wire harness is provided with: A wire member; a1 st tubular metal member covering an outer periphery of the electric wire member; a braided wire which is formed by braiding conductive wires into a tubular shape, is mounted on the outer peripheral surface of the 1 st tubular member, and covers the outer periphery of a lead-out portion of the electric wire member which is led out from the end of the 1 st tubular member; A metal 2 nd tubular member having a 1 st end portion and a 2 nd end portion located on a side opposite to the 1 st end portion, the 1 st end portion covering an outer periphery of the 1 st tubular member with the braided wire sandwiched between the 1 st end portion and the outer periphery of the 1 st tubular member, the 2 nd end portion covering an outer periphery of the lead-out portion, the 2 nd tubular member fixing the braided wire to the outer periphery of the 1 st tubular member, and A protector fixed to an inner peripheral surface of the 2 nd tubular member and covering an outer periphery of the lead portion to protect the lead portion, The 2 nd tubular member has a protruding portion protruding from an inner peripheral surface of the 2 nd tubular member toward an outer peripheral surface of the 1 st tubular member, pressing the knitting yarn against the outer peripheral surface of the 1 st tubular member, The braided wire has: a1 st portion located between an outer peripheral surface of the 1 st tubular member and an inner peripheral surface of the 2 nd tubular member; a2 nd portion connected to the 1 st portion, extending from the 1 st end portion in a direction opposite to the extending direction of the extending portion and folded back toward the outer peripheral side of the 2 nd tubular member, and A 3 rd portion connected to the 2 nd portion and extending in a direction in which the lead-out portion is led out, The wire harness includes a band member that is wound around an outer peripheral surface of the 1 st end portion of the 2 nd tubular member and the 2 nd portion of the braided wire.
  2. 2. The wire harness according to claim 1, wherein, The length of the portion of the wire member covered by the 1 st tubular member is longer than the length of the portion covered by the 2 nd tubular member.
  3. 3. The wire harness according to claim 1, wherein, The 1 st tubular member, the 2 nd tubular member, and the braided wire are each formed of an aluminum alloy.
  4. 4. The wire harness according to any one of claim 1 to claim 3, wherein, The protruding portion is provided over the entire circumferential direction of the 2 nd tubular member.
  5. 5. The wire harness according to any one of claim 1 to claim 3, wherein, The wire harness is provided with: a housing that accommodates an end portion of the lead portion; A shield shell covering the outer circumference of the housing and connecting the braided wires, and A fixing member fixing the braided wire to an outer surface of the shield case, The braided wire, the shield case, and the fixing member are all formed of an aluminum alloy.
  6. 6. The wire harness according to any one of claim 1 to claim 3, wherein, The wire harness includes a sealing member provided inside the end portion of the 1 st tubular member, and that seals between an outer peripheral surface of the wire member and an inner peripheral surface of the 1 st tubular member.
  7. 7. The wire harness according to claim 6, wherein, The protector is opposed to the seal member in the axial direction of the 1 st tubular member.
  8. 8. The wire harness according to claim 7, wherein, The protector is in contact with the seal member in the axial direction of the 1 st cylindrical member.
  9. 9. The wire harness according to claim 6, wherein, The 1 st tubular member has a protrusion protruding from an inner peripheral surface of the 1 st tubular member, The protrusion is located inside the sealing member in the axial direction of the 1 st cylindrical member and is opposed to the sealing member.
  10. 10. The wire harness according to any one of claim 1 to claim 3, wherein, The wire member has a1 st wire and a2 nd wire electrically connected to the 1 st wire, The 1 st electric wire has a single core wire composed of a single conductor and an insulating coating part coating the outer periphery of the single core wire, The 2 nd wire has a stranded wire formed by stranding a plurality of metal wires, and an insulating coating portion for coating the outer periphery of the stranded wire, A connection portion is provided at a part of the lead-out portion in the longitudinal direction, and the 1 st electric wire led out from the end portion of the 1 st tubular member and the 2 nd electric wire located outside the 1 st tubular member are electrically connected at the connection portion.
  11. 11. The wire harness according to claim 10, wherein, The outer periphery of the connection portion is covered by the protector.
  12. 12. The wire harness according to any one of claim 1 to claim 3, wherein, The protector has a fixing portion to which the lead-out portion is fixed.
  13. 13. The wire harness according to claim 11, wherein, The protector is provided with a fixing part, the leading-out part is fixed on the fixing part, The fixing portion is provided at a position farther from the end portion of the 1 st tubular member than a portion of the protector covering the outer periphery of the connecting portion in the longitudinal direction of the lead portion.

Description

Wire harness Technical Field The present disclosure relates to wire harnesses. Background Conventionally, as a wire harness to be laid on a vehicle such as a hybrid vehicle or an electric vehicle, a wire harness having an electric wire formed by connecting a single core wire and a twisted wire is known. (for example, refer to patent document 1). The wire harness described in patent document 1 includes a shield tube covering an outer periphery of a connection portion to which a single-core wire and a stranded wire are connected, and a protector fixed to an end portion of the shield tube and attached to the electric wire. In the connection portion, in a state where the single core wire and the stranded wire are overlapped with each other, these are connected by soldering, welding, or the like, for example. The protector is also referred to as a positioning member in patent document 1. The protector includes a cylindrical portion formed in a cylindrical shape, a band-shaped mounting piece protruding from one end of the cylindrical portion in an axial direction, and a locking protruding portion protruding from an outer peripheral surface of the cylindrical portion. The cylindrical portion and the mounting piece are located inside the shield tube. The electric wire is inserted into the cylindrical portion. The protector is attached to the electric wire by winding the tape together with the mounting piece by the electric wire inserted into the cylindrical portion. The locking projection is configured to be able to be locked with a locking receiving portion provided at an end portion of the shield tube. The locking receiving portion is a hole penetrating an end portion of the shield tube in a thickness direction. The protector is fixed to the end of the shield tube by the locking protrusion and the locking receiving portion being locked to each other. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2017-8484847 Disclosure of Invention Problems to be solved by the invention But because the protector is located inside the shield tube, the inner diameter of the shield tube needs to be larger than the outer diameter of the protector. In this case, the outer diameter of the shield tube may increase with an increase in the inner diameter of the shield tube. Thus, the overall shape of the wire harness may be increased. The present disclosure aims to provide a wire harness capable of suppressing an increase in body shape. Means for solving the problems The wire harness of the present disclosure includes a wire member, a 1 st tubular metal member covering an outer periphery of the wire member, a braided wire formed by braiding conductive wires into a tubular shape, the braided wire being attached to an outer peripheral surface of the 1 st tubular member and covering an outer periphery of a lead-out portion of the wire member that is led out from an end of the 1 st tubular member, a 2 nd tubular metal member having a 1 st end and a 2 nd end located on a side opposite to the 1 st end, the 1 st end covering the outer periphery of the 1 st tubular member with the braided wire sandwiched between the outer peripheral surfaces of the 1 st tubular member, the 2 nd end covering the outer periphery of the lead-out portion, the 2 nd tubular member fixing the braided wire to the outer peripheral surface of the 1 st tubular member, and a protector fixed to an inner peripheral surface of the 2 nd tubular member, the lead-out portion being protected by covering the outer periphery of the lead-out portion, the 2 nd tubular member having a protruding portion that is pressed from the 2 nd tubular member toward the outer peripheral surface of the 1 st tubular member. Effects of the invention According to the present disclosure, the increase in the body shape of the wire harness can be suppressed. Drawings Fig. 1 is a schematic configuration diagram showing a wire harness of an embodiment. Fig. 2 is a cross-sectional view of the portion a of fig. 1. Fig. 3 is an exploded perspective view showing the 1 st tubular member and the protector according to one embodiment in an exploded manner. Detailed Description [ Description of embodiments of the present disclosure ] First, embodiments of the present disclosure will be described. [1] The wire harness of the present disclosure includes a wire member, a1 st tubular metal member covering an outer periphery of the wire member, a braided wire formed by braiding conductive wires into a tubular shape, the braided wire being attached to an outer peripheral surface of the 1 st tubular member and covering an outer periphery of a lead-out portion of the wire member that is led out from an end of the 1 st tubular member, a2 nd tubular metal member having a1 st end and a2 nd end located on a side opposite to the 1 st end, the 1 st end covering the outer periphery of the 1 st tubular member with the braided wire sandwiched between the outer peripheral surfaces