JP2001184951A - Wire harness for vehicle, and vehicle mounting the wire harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire harness for vehicle, in which bent portions need to be deformed prior to wiring, and can be deformed simply in a desired shape upon wiring, and also the deformation remains, as well as cars equipped with the wire harness. SOLUTION: In a wire harness for vehicle formed by twisting a plurality of covered lead wires, at least one portion of the covered lead wires is made of a single core wire 501.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle wire harness for electrically connecting electrical terminals mounted on a vehicle and a vehicle equipped with the same, and more particularly, to a vehicle harness having a plurality of covered conductors bundled. The present invention relates to a vehicle wire harness and a vehicle equipped with the same.

[0002]

2. Description of the Related Art In many cases, electrical terminals mounted on a vehicle are electrically connected to each other by a vehicle wire harness. However, in the conventional wire harness, each coated conductor was a stranded wire with soft copper wire as the strand,
While flexible and easy wiring work, deformation does not remain in the part to be bent, so to wire along the uneven shape of the vehicle or to avoid interference with other parts etc. It had to be fixed to the body frame by a clamp. In addition, a band for binding and an adhesive tape were indispensable to prevent the bundle of the covered conductors from being unraveled (see JIS standard C3406 "Low-voltage wires for automobiles").

In order to solve such a problem, for example, in Japanese Patent Application Laid-Open No. Sho 63-205010, all the covered conductors are made of inflexible hard steel wires, and a predetermined bent portion is preliminarily formed before wiring. A technique has been disclosed in which a wire harness is deformed into a desired shape in advance by deforming the wire harness and heat-curing it locally.

Japanese Patent Application Laid-Open No. 1-307109 discloses a technique in which all the covered conductors of a flat wire harness are formed as a single core wire, and only a bent portion is formed in a flat shape in advance to maintain deformation. I have.

[0005]

In any of the above-mentioned prior arts, it is necessary to specify and bend a bent portion before wiring, so that not only skill is required for wiring work but also complicated or narrow wiring. There was a problem that the wire harness could not be taken into the part.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned conventional technical problem, and it is not necessary to deform a bent portion in advance before wiring, and it is possible to easily deform a bent portion into a desired shape at the time of wiring. And a vehicle equipped with the same.

[0007]

Means for Solving the Problems In order to achieve the above object, the present invention is characterized in that the following means are taken.

(1) In a vehicle wire harness configured by bundling a plurality of covered conductors, at least a part of the covered conductor is formed into a deformable single core wire, and these are twisted together.

(2) In a vehicle in which electrical terminals are electrically connected by a vehicle wire harness formed by bundling a plurality of covered conductors, the wire harness is formed by connecting a plurality of wire harness pieces. The wire harness piece includes a first wire harness piece that connects the electrical terminals having a fixed relative position, and a second wire harness piece that connects the electrical terminals with a non-fixed relative position, At least a part of the first wire harness piece had at least a part of the covered conductor as a single core wire, and the second wire harness piece had all the covered conductors as stranded wires.

According to the above feature (1), when a plurality of covered conductors are twisted, deformation remains in the single core wire, so that the wire harness can be bundled without using a binding band or the like. Become. Further, since the wire harness can be maintained while being deformed into a desired bent shape, a clamp is not required.

According to the above feature (2), the wire harness piece for connecting the electrical terminals whose relative positions are fixed,
While at least a part of the coated conductor is a single core wire,
The wire harness pieces that connect the electrical terminals whose relative positions are non-fixed are made of stranded wires, so that the handleability of the wire harness can be improved without reducing the mobility of the vehicle movable part. it can.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing a configuration of a motorcycle to which the vehicle wire harness of the present invention is applied.
FIG. 2 is a diagram showing a structure of the wire harness.

On a motorcycle, an input / output system electrical terminal 11 such as an instrument or various operation switches provided on a meter cover 1 attached to an upper portion of a steering wheel, an engine system electrical terminal 12 provided in a swing unit 2, and a vehicle A plurality of electrical terminals such as a control system electrical terminal 13 such as an ECU (engine control unit) provided at a central portion are spaced apart.

The wire harness 5 for interconnecting the electrical terminals is formed by electrically and mechanically connecting a plurality of wire harness pieces 50 to 53 with couplers 4a and 4b. The wire harness pieces are divided into a plurality of branch lines 51, 52, 53 and a wire harness main body 50 which is routed along the body frame and connects the respective branch lines 51 to 53 to each other.

The input / output system electrical terminal 11 is connected to the wire harness main body 50 via a coupler 4a and a branch line 51. Similarly, the engine system electrical terminal 12 is connected via a coupler 4b and a branch line 52, and the control system electrical terminal 13 is connected via the coupler 4b and a branch line 53.

Here, the branch line 51 of the wire harness 5
The relative positions of the input / output system electrical terminal 11 and the end (coupler 4a) of the wire harness main body 50 interconnected by the steering wheel are displaced by steering the steering wheel.
The branch line 51 is required to have flexibility that can be easily deformed in accordance with the displacement. Therefore, in the present embodiment, all of the covered conductors forming the branch line 51 are formed of stranded wires, so that the branch line 51 does not obstruct the steering of the steering wheel.

Similarly, the engine electrical terminal 12 and the wiring harness main body 5 interconnected by the branch line 52
The relative position of the zero end (coupler 4b) is also displaced by the swinging motion of the swing unit 2. Therefore, in the present embodiment, all of the covered conductors forming the branch line 52 are also formed of stranded wires, so that the branch line 52 does not hinder the swinging motion of the swing unit 2.

On the other hand, the relative positions of the control system electrical terminal 13 and the wire harness main body 50 interconnected by the branch line 53 are not displaced.
It is desirable to be able to maintain the deformation according to the routing route. Therefore, in the present embodiment, at least a part of the covered conductor forming the branch line 53 is a single core wire 501, and the shape after the deformation can be stored and held by the single core wire 501.

Similarly, since the relative positions of both ends of the wire harness main body 50 do not displace, it is desirable that the wire harness main body 50 can maintain the deformation corresponding to the routing path. Therefore, in the present embodiment, a part of the covered conductor constituting the wire harness main body 50 is also a single core wire 501.

As described above, in the present embodiment, all the insulated conductors of the wire harness pieces (branch lines 51 and 52) for connecting the non-fixed electrical terminals whose relative positions are varied use twisted wires, while the relative positions are different. At least a part of the covered conductor of the wire harness pieces (the wire harness main body 50 and the branch wire 53) connecting the fixed electrical equipment terminals that are not displaced can be stored in a deformed shape with at least a part thereof being a single core wire. Therefore, not only the operability when routing the wire harness is improved, but also the use amount of the expensive stranded wire is reduced and the cost can be reduced.

In the case where a stranded wire and a single-core wire are mixed in one wire harness 5 as described above, the stranded wire and the single-core wire must be used in order to maintain the assemblability and ensure high reliability. It is essential to have a coupler that can easily and surely connect with the coupler. Therefore, in the present embodiment, the following structure is adopted as the coupler 4 (4a, 4b).

FIG. 3 is a side view of the coupler 4a (4b), FIGS. 4, 5, and 6 are plan views showing the shapes of the components thereof, and FIG. FIG.

As shown in FIGS. 3 and 7, the coupler 4 of this embodiment comprises a coupler base 42 (FIG. 4) having conductive press-contact blades 43 (FIG. 5) provided on both main surfaces thereof, and A pair of coupler covers 41 (FIG. 6) fitted to both main surfaces of the coupler base 42 with the wire harness main body 50 and the branch line 51 interposed therebetween, and both main surfaces of the coupler base 42 and the respective coupler covers 41. And a plurality of waterproof rings 44 for liquid-tightly sealing the space therebetween.

FIGS. 4A and 4B show the shape of the coupler base 42. FIG. 4A is a plan view of a main surface, FIG. 4B is a front view, and FIG. is there.

On both main surfaces of the coupler base 42, a plurality of guide grooves 42 for positioning a covered conductor to be connected.
A plurality of pressure contact blades 43 are provided upright on each guide groove 421 so as to penetrate from one main surface to the other main surface. As shown in FIG. 5, the press contact blade 43 is a flat electrode having both ends processed into a U-shape and an H shape as a whole. The blade breaks the coating 80a of the coated conductor, and the press contact blade 43 and the conductor 80b are electrically connected.

FIGS. 6A and 6B show the shape of the coupler cover 41. FIG. 6A is a plan view of a main surface, FIG. 6B is a front view, and FIG. is there.

Claws 411 are provided on both ends of the coupler cover 41 in the longitudinal direction, and the claws 411 are engaged with convex ribs 414 formed on the side surfaces of the mating coupler cover 41. Holes 415 are provided.

On the main surface of the coupler cover 41, a plurality of guide grooves 412 for positioning the covered conductor to be connected are formed. On each of the guide grooves 412, a plurality of grooves 413 into which the tip of the press contact blade 43 is inserted when the coupler base 42 is fitted are formed.

In this embodiment, as shown in FIG. 7, a first waterproof ring 4 is provided between a pair of coupler covers 41.
4, wire harness body 50, second waterproof ring 44,
The coupler base 42, the third waterproof ring 44, the branch line 51, and the fourth waterproof ring 44 are arranged in this order, and the coupler covers 41 are press-fitted to each other, so that the press-connecting blade 4
3, the corresponding covered conductors of the wire harness main body 50 and the branch line 51 are electrically and mechanically connected to each other.

On the other hand, in the present embodiment, since a part of the covered conductor constituting the wire harness 5 is a single-core wire, as described in detail below, a coupler is connected to the electrical terminal with respect to this single-core wire. It can be connected directly without any intervention. Hereinafter, a connection method between the single core wire and the electrical equipment terminal in the present embodiment will be described.

FIG. 8 is a diagram showing a connection state inside the meter cover 1 attached to the upper portion of the handle. Here, the branch line 51 from the wire harness main body 50 to the meter cover 1 is composed of only stranded wires for steering the steering wheel, but the electrical terminals 14 and 15 such as switches provided on the meter cover 1 are provided. Is fixed, it is desirable that the connection inside the meter cover 1 be performed by a single core wire.

Therefore, in the present embodiment, a coupler 4c similar to the couplers 4a and 4b is also connected to the end of the branch line 51, and branch lines 54 and 55 connecting the coupler 4c and each of the electrical terminals 14 and 15 are connected. Is constituted by a single core wire.

Here, in the prior art, all conductors of the wire harness including the inside of the meter cover 1 are formed of stranded wires. Therefore, the connection between the stranded wires and each of the electrical terminals 14 and 15 includes a coupler or the like. A connecting member was indispensable. On the other hand, in the present embodiment, since the branch lines 54 and 55 in the meter cover 1 are single core wires, they can be simply and reliably connected without using a coupler as described in detail below. it can.

That is, in this embodiment, each of the electrical terminals 1
The external connection terminals 4 and 15 are, as shown in FIG. 9, a pin connector 502 having a plurality of pull-out preventing ribs 502a and press-contact securing ribs 502b.
2, the single-core wires of the branch wires 54 and 55 are directly inserted. This makes it possible to easily and reliably connect the electrical terminals 14, 15 and the wire harness (branch line) with an inexpensive configuration without using an expensive coupling member such as a coupler.

Since it is difficult to replace the branch lines 54 and 55 with the pin connector having the above configuration, the branch lines 54 and 55
In a place where replacement of 55 is required, for example, as shown in FIG. 10, a pin connector 50 having a structure in which a single core wire can be easily inserted and removed by moving a lock piece 503a back and forth.
3 may be adopted.

On the other hand, in the meter cover 1, a speed meter or a rotation meter is fixed on a meter board. Conventionally, the connection between each meter and the wire harness 5 is as follows.
This has been done by fitting a male coupler (or female coupler) provided on the meter board and a female coupler (or male coupler) provided at the end of the wire harness.

However, in the present embodiment, since a single core wire is used as the covering conductor of the wire harness, the wire harness can be directly connected to the meter board as described in detail below.

FIG. 11 shows the branch line 5 of the wire harness 5.
FIG. 4 is an assembly view showing an example of a method of connecting the first, the fifth, and the 55 and the meter board 72, wherein a speed meter (or a rotation meter) 71 is fixed on the meter board 72, and wiring of the speed meter 71 and the surface of the meter board 72 is performed. The pattern is electrically connected by an appropriate method (not shown). On the back surface of the meter board 72, a pin connector 504 electrically connected to the wiring pattern is provided upright.

The tip of the pin connector 504 is formed into a U-shape similarly to the press-contact blade 43 described with reference to FIG. 5, and is connected to the branch line 51 through the coupler cover 41 of the coupler 4c. Branch line 51 and branch lines 54 and 55
In the same manner as described above, the coupler covers 41 are electrically and mechanically connected via the press-contact blades 43 by press-fitting the coupler covers 41 to each other.

As a result, in this embodiment, the meter substrate 72
Pin connector 504, the wire harness body 50
And the branch lines 54 and 55 further branched from the branch line 51 and further connected to the electrical terminals 14 and 15 at both ends of the handlebar by the coupler 4c. it can.

FIG. 12 is a diagram showing another connection method between the meter board 72 and the wire harness. The same reference numerals as those described above denote the same or equivalent parts.

In this embodiment, the pin connector 505 is fixed so as to penetrate the meter cover 1. The pin connector 505 of the present embodiment has the board connector (upper side in the figure) on the side of the pin connector 502, 50 described with reference to FIGS.
3, and the connector side (upper side in the figure) is machined into a U-shape similarly to the press contact blade 43 described with reference to FIG.

In such a configuration, the meter board 72
Is pressed against the meter cover 1 such that the pin electrode 506 protruding from the back surface is inserted into the pin connector 505. The coupler cover 41 is also pressed against the meter cover 1 so that the coupler base 42 and the branch lines 51, 54, 55 are pressed against the meter cover 1.

Also in the present embodiment, the pin electrodes 506, the branch line 51 of the meter board 72, and the electrical terminals 14, 15 at both ends of the handle further branched from the branch line 51.
The branch lines 54 and 55 connected to are connected collectively to each other by one coupler 4d.

In each of the embodiments described above, a single core wire is used as a covered conductor for leaving deformation in a bent portion. However, the present invention is not limited to this, and a plurality of strands may be used. May be used, and a high-compression copper wire (US wire) compressed radially may be used. Even in this case, improvement in workability and reliability in caulking a crimp terminal or the like to the end of the wire harness is expected.

[0046]

According to the present invention, the following effects are achieved.

(1) Since at least a part of the plurality of covered conductors is a single core wire, when the bundle of the covered conductors is twisted, the single core wire remains deformed. Therefore, the wire harness can be bundled without using a binding band or the like. In addition, since the wire harness can be maintained while being deformed into a desired bent shape, not only the operability when routing the wire harness is improved, but also the use of expensive stranded wires is reduced, thereby reducing costs. Becomes possible.

(2) The wire harness piece for connecting the electrical terminals having a fixed relative position has at least a part of the covered conductor as a single core wire, while connecting the electrical terminals having a non-fixed relative position. Since the covered conductor is a stranded wire, the handleability of the wire harness can be improved without lowering the mobility of the vehicle movable part.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a motorcycle to which a vehicle wire harness of the present invention is applied.

FIG. 2 is a diagram showing a structure of the wire harness of FIG.

FIG. 3 is a side view of a coupler for connecting the wire harness pieces to each other.

FIG. 4 is a plan view of a coupler base.

FIG. 5 is a plan view of the press contact blade.

FIG. 6 is a plan view of the coupler cover.

FIG. 7 is an assembly view of the coupler.

FIG. 8 is a diagram showing a connection state inside the meter cover.

FIG. 9 is a diagram showing a connection example between a single core wire and an electrical terminal.

FIG. 10 is a diagram showing another example of connection between a single core wire and an electrical terminal.

FIG. 11 is a diagram showing a connection example between a meter board and a coupler.

FIG. 12 is a diagram showing another connection example between the meter board and the coupler.

[Explanation of symbols]

1: meter cover, 2: swing unit, 4a, 4b
... Coupler, 5 ... Wire harness, 11 ... Input / output system electrical terminal, 12 ... Engine system electrical terminal, 13 ... Control system electrical terminal, 41 ... Coupler cover, 42 ... Coupler base, 43 ...
Pressing blade, 44: Waterproof ring, 50: Wire harness body, 51, 52, 53 ... Branch line, 71: Meter, 72 ...
Meter board

Claims (3)

[Claims] 1. A vehicle wire harness configured by bundling a plurality of covered conductors, wherein at least a part of the covered conductor is a single core wire, and each covered conductor is twisted with each other. Vehicle wiring harness. 2. The wire harness is configured by connecting a plurality of wire harness pieces, a part of the wire harness piece is entirely covered with a stranded wire, and the other of the wire harness pieces is at least a covered wire. The vehicle wire harness according to claim 1, wherein a part of the wire harness is a single core wire. 3. A vehicle in which electrical terminals are electrically connected to each other by a vehicle wire harness formed by bundling a plurality of covered conductors, wherein the wire harness is configured by connecting a plurality of wire harness pieces. The plurality of wire harness pieces include a first wire harness piece that connects electrical equipment terminals whose relative positions are fixed, and a second wire harness piece that connects electrical equipment terminals whose relative position is not fixed. At least a part of the first wire harness piece, at least a part of the plurality of covered conductors is a single-core wire, and the second wire harness piece is such that all the covered conductors are stranded wires. Vehicle.