JPH09245530A - Harness - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To make a harness having a fixed shape and to easily cope with maintenance, circuit expansion due to design change, and the like. SOLUTION: Conductive materials 8a to 8k are wired in parallel and fixed inside a wiring groove 5b having a concave cross-section provided in a resin-made wiring member 5 having rigidity. In addition to the essential conductive materials 8c to 8i necessary for the circuit during normal use, the conductive materials to be wired in parallel are auxiliary conductive materials 8a, 8b, 8 for maintenance and circuit change.
Including j and 8k.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness used in an automobile or the like, and a conductive material is wired in parallel inside a wiring groove having a concave cross section provided in a resinous wiring member having rigidity and fixed. The present invention particularly relates to a harness capable of easily performing maintenance, inspection, diagnosis, circuit addition accompanying design change, circuit change, and the like.

[0002]

2. Description of the Related Art Recently, automobiles have meters, switches,
An increasing number of electrical components such as connection boxes, sensors, radios, air conditioners, etc. are installed, and the number of drive circuits and control circuits that connect these electrical components to the power supply side is increasing. The number is also increasing. Conventionally, a large number of these electric wires are bound by a tape winding to form a wire harness, and these wire harnesses are fixed to a vehicle body via a clamp.

However, since this type of wire harness is simply a bundle of electric wires, it cannot hold a fixed and constant shape and is deformed by its own weight. Therefore, while the conventional work of attaching the wire harness to the vehicle body requires a great deal of labor and time, it is almost impossible to remove the wire harness for recycling or the like.

On the other hand, the wires arranged in a flat shape or bundled wires are housed in a case or the like, and the whole or a part of the length direction is bound by a resin layer to maintain the shape. Harnesses have been proposed in the past. (JP 62-285315 A, JP 6
(See JP-A-2-285136 and JP-A-63-111715)

[0005]

However, in the above-mentioned conventional wire harness in which electric wires are bound by the resin layer, it is difficult to perform maintenance, inspection, and diagnosis when one of a large number of electric wires forming the wire harness is broken. Met. Further, when a circuit is added or a circuit is changed due to a design change, it is difficult to cope with it unless a harness is newly designed and manufactured.

[0006] The present invention has been made in view of the above problems in the conventional harness, and has a structure in which the harness is fixed, that is, as a shape, a harness-attached body such as a vehicle body. The purpose is to improve the performance of mounting on, and to easily cope with maintenance, inspection, diagnosis, circuit expansion due to design change, circuit change, and the like.

[0007]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a conductive material is parallel-wired and fixed in a wiring groove having a concave cross section provided in a resin-made wiring member having rigidity. The present invention provides a harness characterized in that it contains a preliminary conductive material for maintenance and circuit modification, in addition to an essential conductive material required for a circuit during normal use.

In the harness of the present invention, since the conductive members wired in parallel as described above include the essential conductive material required for the circuit during normal use, the auxiliary conductive material for maintenance and circuit modification is used. If the wire is broken, an alternative circuit can be formed by the auxiliary conductive material, and it is not necessary to remove the harness itself from the harness-attached portion such as the vehicle body. Also, when adding circuits by design change,
Since it is sufficient to construct an additional circuit with this spare conductive material, it is not necessary to newly design and manufacture a harness.

It is preferable that a terminal for connecting an external terminal is previously connected to or connected to the conductive material for parallel wiring. (Claim 2) When the terminal for external connection is connected or connectable to a conductive member in advance, inspection, diagnosis and the like can be performed using this terminal, and maintenance, designing at the time of disconnection, etc. Even when a circuit is added or changed due to a change, the terminal can be used to connect the circuit to an external device or to form a branch circuit.

Specifically, it is preferable that the wiring member is provided with a terminal insertion hole for inserting a pressure-contact terminal for pressure-connecting to a conductive material housed and fixed therein. (Claim 3) When the terminal insertion hole is provided in the wiring member in this manner, the conductive material is wired in parallel according to the maintenance, inspection, diagnosis, or circuit expansion or circuit change due to design change as described above. The terminal for external connection can be connected to a desired conductive material.

It is preferable that the conductive material having the parallel wiring is integrated with a binding material composed of a tape, a film or a sheet, or with the binding material and an adhesive or an adhesive. (Claim 4)

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B show a harness 1 according to the first embodiment of the present invention. The harness 1 of the first embodiment includes a wiring member 3 made of a flat cable and a wiring material 5 to which the wiring member 3 is fixed.

Wiring material 3 consisting of the above flat cable
Is a resin tape 9, 9 in which conductive members 8a to 8k made of a general electric wire having a structure in which the conductive wire 6 is covered with an insulating coating 7 are arranged in parallel at regular intervals, and are provided at required intervals in the length direction. The structure is integrated with.

On the other hand, the wiring member 5 is made of polypropylene and has a rigidity such that it can maintain a certain shape. The wiring member 5 is provided with a wiring groove 5b having a concave cross-section with an opening 5a on the upper surface side, and the wiring material 3 arranged on the bottom surface 5c of the wiring groove 5b is fixed with an adhesive 11. There is.

Conductive materials 8a to 8k constituting the wiring member 3
Of the conductive material 8 located in the central portion of the wiring material 3 in the width direction
Reference characters c to 8i are conductive materials (essential conductive materials) that are always used to form a circuit when first mounted on the vehicle body and used in a normal state. On the other hand, two conductive materials 8a and 8b and two conductive materials 8j and 8k arranged on both sides of the wiring material 3 in the width direction.
Is a spare conductive material (spare conductive material) that is not used to form a circuit when first attached to the vehicle body.

As described above, in the first embodiment, four of the conductive materials 8a to 8k forming the wiring member 3 are used as the preliminary conductive material 8.
Since a, 8b, 8j, and 8k are used, even if the above-mentioned essential conductive materials 8c to 8i are broken, these spare conductive materials 8 can be used without replacing the wiring material 3 made of a flat cable.
Alternative circuits can be constructed using a, 8b, 8j, 8k. Further, when the number of circuits is increased due to the design change, it is possible to deal with it by newly configuring a circuit with these auxiliary conductive materials 8a, 8b, 8j, 8k. In particular, since the wiring member 3 is a flat cable, even after the wiring member 3 and the wiring member 5 are integrally fixed as described above to form the harness 1, the spare electric wire 8 is provided.
Electrical connections can be made to a-8k. In this way, the harness 3 of the first embodiment can easily cope with circuit changes, design changes such as circuit increase, and maintenance.

In addition, the wiring member 3 is a wiring member 5 having rigidity.
Since the harness 1 is fixed to the vehicle body and maintains a constant shape, the harness 1 can be easily attached to and detached from the vehicle body.

The adhesive 11 for bonding the wiring member 3 and the wiring member 5 may be any adhesive that can be securely fixed without affecting the strength and shape of the wiring member 3 and the wiring member 5. Further, an adhesive (thermosetting adhesive) that requires heating for adhesion may be used as long as it is within the heat resistant temperature range of the wiring member 5 and the wiring member 3. Specifically, a urethane resin adhesive, an epoxy resin adhesive, a phenol resin adhesive, an acrylic resin adhesive, an ester resin adhesive, or the like can be used.

The wiring member 3 is fixed to the bottom surface 5c of the wiring groove 5b with an adhesive 11 over the entire length except for a connector or the like connected to the end of the wiring member 3. In the stress absorbing portion 5d bent in the middle inverted U shape, the wiring member 3 is only placed on the bottom surface 5c of the wiring groove 5b, and is not fixed by the adhesive 11. Therefore, the stress caused by the difference in the thermal characteristics such as the thermal expansion coefficient and the thermal contraction coefficient and the vibration characteristics between the wiring member 3 and the wiring member 5 causes the stress absorbing portion 5d of the wiring member 5 to expand and contract. It is absorbed and relaxed by.

2 (A) and 2 (B) show a harness 1'according to a second embodiment of the present invention. In the second embodiment, the terminal insertion hole 13, the bottom wall 5d of the wiring member 5,
13 are provided, and press-contact terminals 15, 15 ... For external connection are attached to the terminal insertion holes 13. The pressure contact portions 15a of the pressure contact terminals 15, 15 ...
The tab-shaped portion 15b projects outward from the bottom wall 5d of the cable routing member 5 while being connected to .about.8k. Further, the tab portion 15 of the press contact terminal 15 is provided outside the bottom wall d of the wiring member 5.
A cover member 17 for protecting b is detachably attached. The other structure of the second embodiment is similar to that of the first embodiment shown in FIG.

In the second embodiment, the tab-like portion 15b of the pressure contact terminal 15 which is in pressure contact with each of the conductive materials 8a to 8k forming the wiring member 3 as described above projects from the bottom wall portion 5d of the wiring member 5. Therefore, the circuit can be changed by connecting the pressure contact terminals 15 to each other. Further, by providing the pressure contact terminals 15 connected to the conductive materials 8a to 8k as described above, it is possible to easily perform circuit inspection, diagnosis, and maintenance such as continuity inspection.

Further, in the second embodiment, as in the first embodiment, the conductive materials 8a to 8k forming the cable arranging material 3 are used.
Are auxiliary conductive materials 8a, 8 for maintenance and circuit modification
By providing b, 8j, and 8k, the preliminary conductive material 8c-
It is possible to easily deal with disconnection of 8i and circuit change.

FIG. 3 shows a harness 1 ″ according to a third embodiment of the present invention. In the third embodiment, a terminal insertion hole for inserting a pressure contact terminal (see FIG. 2) is formed in the bottom wall 5d of the wiring member 5.
(See (B)) is provided corresponding to each conductive material 8a to 8k. In FIG. 2, reference numeral 21 is the pressure contact terminals 15 and 1 for external connection.
5 ... A pressure contact terminal support made of resin that is held. The pressure contact terminal support body 21 includes the conductive material 8a to
The pressure contact terminals 15, 15 are held at a pitch equal to 8k.

On the other hand, reference numeral 22 in the drawing denotes the pressure contact terminal support 2
1 is a resin-made terminal receiving member having an insertion hole 23 for inserting the wire pressure contact portion 15a of each pressure contact terminal 15 supported by 1.

In the third embodiment, normally, the pressure contact terminal support 21 and the terminal receiving member 22 are separated from the wiring member 5. On the other hand, at the time of maintenance due to disconnection of the conductive materials 8a to 8k or when a circuit is added or changed by design change, as shown by an arrow in FIG. Bottom wall 5d
The pressure contact portions 15a of the pressure contact terminals 15 are inserted into the terminal insertion holes provided in the bottom wall 5d of the wiring member 5, and the pressure contact portions 1
5a is brought into pressure contact with the conductive materials 8a to 8k. Further, the pressure contact terminal support 21 is fixed to the cable installation member 5 by the cable arrangement member 5 and the fixing locking mechanisms 24 a and 24 b provided on the pressure contact terminal support body 21.

After that, the pressure contact portions 15a of the pressure contact terminals 15 protruding from the bottom wall 5d of the wiring member 5 to the opening 5a side are inserted into the insertion holes 23 of the terminal receiving member 22.

As described above, in the third embodiment, by fixing the pressure contact terminal support member 21 to the wiring member 5 as necessary, the plurality of pressure contact terminals 15 can be connected to the conductive materials 8a to 8k at once. Therefore, maintenance, inspection, diagnosis, or circuit addition or modification can be performed more easily.

The present invention is not limited to the above embodiment, and various modifications can be made. For example, in the first to third embodiments described above, the conductive material is formed by the flat cable in which the general electric wires and the windings are connected with the resin tape as described above, but the conductive material is covered with the insulating coating. It may be a flat or round conductor which is not applied, and these conductive materials are bound by a tape, film or sheet, or the above binding agent is combined with an adhesive or a pressure sensitive adhesive to be integrated by parallel wiring. It may be one (ribbon jumper, jumper lead, flexible flat cable). Furthermore, a commercially available flat cable can also be used.

Further, in the second and third embodiments, among the conductive materials 8a to 8k constituting the wiring material 3 composed of the flat cable, the essential conductive materials 8c to 8i and the preliminary conductive materials 8a and 8b, Although the pressure contact terminals are attached to both 8j and 8k, the pressure contact terminals 15 may be attached only to all or some of the essential conductive materials 8a to 8k.
The pressure contact terminals 15 may be attached to all or part of 8b, 8j, and 8k.

[0030]

As is apparent from the above description, in the harness according to the present invention, the parallel wiring conductive member fixed to the wiring groove having the concave cross section provided in the rigid wiring member is normally used. Sometimes, in addition to the essential conductive material necessary for the circuit, the auxiliary conductive material for maintenance and circuit modification is included, so that even if the essential conductive material is broken, it is not necessary to remove the harness itself from the harness-attached portion such as the vehicle body. That is,
This case can be dealt with by forming an alternative circuit with the above-mentioned preliminary conductive material. Claim 1
In the case of the harness of (1), when the circuit is added by changing the design, it is sufficient to configure the added circuit by the above-mentioned auxiliary conductive material, and therefore it is possible to cope with it without newly designing and manufacturing the harness.

Further, when the pressure contact terminal for external connection is previously connected to the conductive member or is connectable to the conductive member, inspection, diagnosis and the like can be performed using this pressure contact terminal, and maintenance such as disconnection and the like can be performed. Also, in the case of adding a circuit by changing the design or changing the circuit, the terminal can be used to connect the circuit to an external device or form a branch circuit.

Further, in the case where the wiring member is provided with the terminal insertion hole for inserting the pressure contact terminal for pressure contact connection with the conductive material housed and fixed therein, the circuit is subjected to the maintenance, inspection, diagnosis and design change as described above. Depending on the number of expansions, circuit changes, etc., it is possible to connect the above-mentioned external connection terminals to the desired conductive material of the parallel-wired conductive materials from the outside of the wiring member, if necessary. It becomes easier to handle inspection, diagnosis, and circuit changes.

[Brief description of drawings]

FIG. 1 is a side view showing a harness according to a first embodiment of the present invention, and FIG. 1B is a sectional view taken along line I-I of FIG.

2A and 2B show a harness according to a second embodiment of the present invention, FIG. 2A being a partial perspective view and FIG. 2B being a cross-sectional view taken along line II-II of FIG.

FIG. 3 is an exploded perspective view showing a third embodiment of the present invention.

[Explanation of symbols]

 1, 1 ', 1' "Harness 3 Wiring material 5 Routing member 8a-8k Conductive material 8a, 8b, 8j, 8k Preliminary conductive material 8c-8i Essential conductive material 9 Resin tape 11 Adhesive agent 13 Terminal insertion hole 15 Pressure contact terminal

Front Page Continuation (72) Inventor Hiroshi Hasegawa 1-7-10 Kikuzumi, Minami-ku, Nagoya, Aichi Prefecture Harness Research Institute, Inc.

Claims (4)

[Claims] 1. A conductive material is wired in parallel and fixed inside a wiring groove having a concave cross-section provided in a resin-made wiring member having rigidity, and the conductive material wired in parallel is on a circuit during normal use. A harness characterized by containing a preliminary conductive material for maintenance and circuit modification, in addition to the necessary essential conductive material. 2. The harness according to claim 1, wherein terminals for external terminal connection are previously connected to or connectable to the conductive material for parallel wiring. 3. The harness according to claim 2, wherein the wiring member is provided with a terminal insertion hole for inserting a pressure contact terminal which is pressure-contacted with a conductive material housed and fixed therein. 4. The conductive material wired in parallel is integrated with a binding material made of a tape, a film or a sheet, or with the binding material and an adhesive or a pressure sensitive adhesive. The harness according to item 1.