CN-121989833-A - Wire harness

Abstract

The invention provides a thinned wire harness. A wire harness (10) is provided with a wire member (20), a bellows (31) that covers the outer periphery of the wire member, and a waterproof member (40) that covers the outer periphery of the wire member and is connected to the bellows. The waterproof member has a connection tube portion (41) covering the outer periphery of the bellows and a flat tube portion (50) integrally formed with the connection tube portion. The cross-sectional shape of the bellows is formed in a perfect circular shape. The cross-sectional shape of the connecting tube portion is formed in a perfect circle shape. The cross-sectional shape of the flat tube portion is formed in a flat shape having a larger dimension along the 2 nd direction (Y1) orthogonal to both the axial direction of the waterproof member and the 1 st direction (X1) than the dimension along the 1 st direction (X1) orthogonal to the axial direction of the waterproof member. The dimension of the flat tube portion along the 1 st direction (X1) is smaller than the dimension of the connecting tube portion along the 1 st direction (X1).

Inventors

• Zhong Quantuomi
• MURAKAMI YUICHI
• ITO KATSUTOSHI

Assignees

• 住友电装株式会社

Dates

Publication Date

20260508

Application Date

20251017

Priority Date

20241105

Claims (9)

1. 1. A wire harness is provided with: A wire member; an exterior member covering an outer periphery of the wire member, and A waterproof member covering an outer periphery of the electric wire member and coupled to the exterior member, The waterproof member has a connection cylindrical portion covering an outer periphery of the exterior member and a flat cylindrical portion integrally formed with the connection cylindrical portion, The cross-sectional shape of the exterior member is formed in a perfect circle shape, The cross-sectional shape of the connecting cylinder portion is formed in a perfect circular shape, The direction orthogonal to the axial direction of the waterproof member is a1 st direction, the direction orthogonal to both the axial direction and the 1 st direction is a2 nd direction, the cross-sectional shape of the flat tube portion is formed in a flat shape having a larger dimension along the 2 nd direction than along the 1 st direction, The flat tube portion has a smaller dimension along the 1 st direction than the connecting tube portion.
2. 2. The wire harness according to claim 1, wherein, The wire harness further has a path restricting member that is mounted to an outer periphery of the flat tube portion and restricts a path of the electric wire member.
3. 3. The wire harness according to claim 2, wherein, The wire member has k wires, k is a natural number of 3 or more, The k wires are arranged in n layers along the 1 st direction in the connecting cylinder part, n is a natural number of more than or equal to 2 and less than or equal to k-1, The k wires are arranged in m layers along the 1 st direction inside the flat tube part, m is a natural number below n-1, The path limiting member compresses the flat cylindrical portion in the 1 st direction so that the k wires are arranged in the m layers inside the flat cylindrical portion.
4. 4. The wire harness according to claim 3, wherein, The m-layer is a layer of one layer, The path limiting member compresses the flat tube portion in the 1 st direction so that the k wires are arranged in a lateral side-by-side manner along the 2 nd direction inside the flat tube portion.
5. 5. The wire harness according to claim 3, wherein, The path limiting member has a1 st division body and a2 nd division body formed to be able to be combined with the 1 st division body, The path limiting member is formed in a tubular shape surrounding the outer periphery of the flat tubular portion by combining the 1 st division body and the 2 nd division body, The 1 st division body is provided with a1 st bottom wall, The 2 nd division body has a 2 nd bottom wall opposed to the 1 st bottom wall in the 1 st direction, The 1 st distance along the 1 st direction between the 1 st bottom wall and the 2 nd bottom wall is smaller than the 1 st dimension along the 1 st direction of the k wires arranged in the n layers.
6. 6. The wire harness according to claim 1, wherein, The cross-sectional shape of the flat tube portion has two long side portions extending in the 2 nd direction, two intermediate portions provided between the two long side portions in the 1 st direction and outside the two long side portions in the 2 nd direction, and four inclined portions connecting each of both end portions of the two long side portions and each of the two intermediate portions, The two long side portions are opposed to each other in the 1 st direction, The two intermediate portions are opposed to each other in the 2 nd direction, Each of the four inclined portions extends in an inclined direction intersecting both the 1 st direction and the 2 nd direction, and is formed shorter than each of the two long side portions.
7. 7. The wire harness according to claim 6, wherein, The thickness of each of the four inclined portions is formed thicker than the thickness of each of the two long side portions, Each of the two intermediate portions is formed in such a manner as to extend along the 1 st direction, The cross-sectional shape of the flat cylindrical portion is formed in an octagon shape.
8. 8. The wire harness according to claim 1, wherein, The cross-sectional shape of the flat cylindrical portion has two long side portions extending along the 2 nd direction and two corrugated portions provided between the two long side portions in the 1 st direction, The two long side portions are opposed to each other in the 1 st direction, The two bellows are opposed to each other in the 2 nd direction.
9. 9. The wire harness according to claim 1, wherein, The flat tube portion has a corrugated structure in which annular convex portions and annular concave portions are alternately and continuously provided along an axial direction of the flat tube portion.

Description

Wire harness Technical Field The present invention relates to a wire harness. Background Conventionally, as a wire harness for a vehicle such as a hybrid vehicle or an electric vehicle, there is a wire harness that is routed so as to pass through the outside of the vehicle such as under the floor of the vehicle. As such a wire harness, there is a wire harness including an electric wire, an exterior member such as a bellows covering the electric wire, and a rubber grommet attached to the outside of the exterior member (for example, refer to patent document 1). The grommet is attached so as to be in close contact with the outer peripheral surface of the exterior member, thereby functioning as a waterproof member that inhibits water from penetrating into the interior of the exterior member and the grommet. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2015-015822 Disclosure of Invention Problems to be solved by the invention However, in the wire harness described above, thinning is desired. The invention provides a wire harness which can be thinned. Means for solving the problems The wire harness of the present invention includes a wire member, an outer member covering an outer periphery of the wire member, and a waterproof member covering the outer periphery of the wire member and connected to the outer member, wherein the waterproof member has a connection tube portion covering the outer periphery of the outer member and a flat tube portion integrally formed with the connection tube portion, the cross-sectional shape of the outer member is formed in a perfect circle shape, the cross-sectional shape of the connection tube portion is formed in a perfect circle shape, a direction orthogonal to an axial direction of the waterproof member is a1 st direction, a direction orthogonal to both the axial direction and the 1 st direction is a2 nd direction, a cross-sectional shape of the flat tube portion is formed in a flat shape having a larger dimension along the 2 nd direction than a dimension along the 1 st direction, and a dimension along the 1 st direction of the flat tube portion is smaller than a dimension along the 1 st direction of the connection tube portion. Effects of the invention The wire harness according to the present invention has an effect of being able to be thinned. Drawings Fig. 1 is a schematic structural view showing a wire harness of an embodiment. Fig. 2 is a perspective view showing a wire harness of an embodiment. Fig. 3 is an exploded perspective view showing a wire harness of an embodiment. Fig. 4 is a sectional view showing a wire harness of an embodiment. Fig. 5 is a sectional view (5-5 line sectional view in fig. 2) showing a wire harness of an embodiment. Fig. 6 is a sectional view (6-6 line sectional view in fig. 2) showing a wire harness of an embodiment. Fig. 7 is a sectional view showing a wire harness of an embodiment. Fig. 8 is a perspective view showing a method of manufacturing a wire harness according to an embodiment. Fig. 9 is a cross-sectional view showing a method of manufacturing a wire harness according to an embodiment. Fig. 10 is a cross-sectional view showing a part of a wire harness of a modification. Fig. 11 is a cross-sectional view showing a part of a wire harness of a modification. Fig. 12 is a cross-sectional view showing a method of manufacturing a wire harness according to a modification. Fig. 13 is a perspective view showing a waterproof member according to a modification. Detailed Description Description of embodiments of the invention First, an embodiment of the present invention will be described. [1] The wire harness of the present invention includes a wire member, an outer member covering an outer periphery of the wire member, and a waterproof member covering the outer periphery of the wire member and connected to the outer member, wherein the waterproof member has a connection tube portion covering the outer periphery of the outer member and a flat tube portion integrally formed with the connection tube portion, the cross-sectional shape of the outer member is formed in a perfect circle shape, the cross-sectional shape of the connection tube portion is formed in a perfect circle shape, a direction orthogonal to an axial direction of the waterproof member is a 1 st direction, a direction orthogonal to both the axial direction and the 1 st direction is a 2 nd direction, a cross-sectional shape of the flat tube portion is formed in a flat shape having a larger dimension along the 2 nd direction than a dimension along the 1 st direction, and a dimension along the 1 st direction of the flat tube portion is smaller than a dimension along the 1 st direction of the connection tube portion. According to this structure, the waterproof member is formed to have a structure of connecting the cylindrical portion and the flat cylindrical portion. That is, a part of the waterproof member is formed as a flat cylindri