JP2019106383A - Composite harness for vehicle - Google Patents

Abstract

To provide a composite harness for a vehicle capable of effectively using a wiring space of a vehicle and making wiring work easy.SOLUTION: There is provided a composite harness for a vehicle which is wired from a vehicle body to a wheel, having: a plurality of powder source lines with a center conductor and an insulator coating the center conductor; a cable for ABS (anti-lock brake system) sensor formed by coating a plurality of signal lines having a center conductor and an insulator coating the center conductor, and having smaller diameter than the plurality of powder source lines with an inner sheath consisting of a thermoplastic resin; and an outer sheath consisting of a thermoplastic resin coating the plurality of power source lines and the cable for ABS sensor, in which the inner sheath is fitted between the plurality of signal lines, and the inner sheath is in contact with the plurality of power source lines.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a composite harness for a vehicle.

  DESCRIPTION OF RELATED ART Conventionally, the ABS sensor used for ABS (Anti-lock Brake System) of a vehicle is known. The ABS sensor measures the rotational speed of the wheel, and the sensor unit (sensor head) is provided in the vicinity of the wheel. The sensor unit provided in the vicinity of the wheel and the control device (electronic control unit) provided on the vehicle body side are connected by an ABS sensor cable.

  By the way, the electric brake which controls a brake by electricity instead of oil pressure is spreading in recent years. In addition, although the electric parking brake (EPB) which motorized the parking brake is also known, in this specification, this electric parking brake shall also be included in an electric brake. In the electric brake, a brake caliper (actuator) provided on a wheel and a control device provided on the vehicle body side are connected by an electric brake cable (see, for example, Patent Document 1).

JP 2003-92028 A

  However, conventionally, the cable for the ABS sensor and the cable for the electric brake have been separately routed although the connection destinations are substantially the same. Since the wiring space of the vehicle is limited and the work of wiring becomes complicated, improvement is desired.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle composite harness which can effectively utilize the wiring space of the vehicle and can facilitate the wiring operation.

  The present invention was conceived to achieve the above object, and is a composite harness for a vehicle wired from a vehicle body to a wheel, comprising a plurality of power supplies comprising a central conductor and an insulator covering the central conductor. ABS (anti-lock brake system) comprising a plurality of signal wires each having a diameter smaller than that of the plurality of power supply wires, the plurality of signal wires being covered with a thermoplastic resin. A sensor cable, and an outer sheath made of a thermoplastic resin covering the plurality of power supply lines and the cable for the ABS sensor, the inner sheath being interposed between the plurality of signal lines, The inner sheath is a vehicle composite harness in contact with the plurality of power supply lines.

  A separator covering the plurality of power supply lines and the cable for the ABS sensor is provided between the plurality of power supply lines and the cable for the ABS sensor and the outer sheath, and the separator is a paper, a nonwoven fabric, or It may be made of resin tape.

  The plurality of power supply lines may be in contact with each other, and the plurality of signal lines may be in contact with each other.

  The outer sheath is made of thermoplastic urethane, and a fixing bracket is attached to the outer periphery of the outer sheath via an EPDM (ethylene propylene diene rubber) provided on a part of the outer sheath in the longitudinal direction. Good.

  The plurality of power supply lines are extended in a state where a protective material is provided around the end of the outer sheath, and the cable for an ABS sensor has the plurality of signal lines from the end of the outer sheath In the state of being covered by the inner sheath, the plurality of power supply lines extend longer than the length extended from the end of the outer sheath, and the end of the cable for the ABS sensor is: A sensor head may be provided.

  The outer sheath may be an extrusion.

  ADVANTAGE OF THE INVENTION According to this invention, the wiring space of a vehicle can be utilized effectively and the composite harness for vehicles which can make a wiring operation easy can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the composite harness which concerns on one embodiment of this invention, (a) is a top view, (b) is the 1B-1B sectional view taken on the line. It is sectional drawing of the composite harness which concerns on other embodiment of this invention. (A), (b) is sectional drawing of the composite harness which concerns on other embodiment of this invention. It is a figure which shows the compound harness which concerns on one modification of this invention, (a) is a top view, (b) is the 4B-4B sectional view taken on the line.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

  FIG. 1 is a view showing a composite harness according to the present embodiment, wherein (a) is a plan view and (b) is a cross-sectional view along line 1B-1B.

  As shown in FIGS. 1 (a) and 1 (b), the composite harness 1 includes the composite cable 5 in which the electric brake cable 2 and the ABS sensor cable 3 are covered with a common outer sheath 4 and integrated. It is a thing. Further, the composite harness 1 branches the cable 2 for electric brake and the cable 3 for ABS sensor at the end of the composite cable 5 and connects the connector 6 to at least one end of the both cables 2 and 3. Is provided.

  The electric brake cable 2 consists of two power supply lines 7, and a mechanism (electric parking brake (EPB) mechanism) for suppressing the rotation of the wheels by mainly pressing a predetermined button after the vehicle is stopped. It is used as a conductive path for passing a current to function. Further, as the electric brake cable 2, it is also possible to use a normal electric brake cable other than the electric parking brake (EPB) (for example, a cable including control signal lines in addition to the two power supply lines 7). Possible.

  The power supply line 7 is configured by covering the periphery of the center conductor 7a with the insulator 7b. The insulator 7b is made of, for example, XLPE (crosslinked polyethylene), ETFE (tetrafluoroethylene-ethylene copolymer), or the like. Usually, in the cable 2 for electric brakes, a sheath is coated around the two power supply wires 7, but in the present invention, a common outer sheath 4 is used as a substitute for this sheath.

  In the present embodiment, the composite cable 5 is defined as an integrated cable in which the electric brake cable 2 and the ABS sensor cable 3 are covered with the common outer sheath 4 and integrated. In other words, it can be said that the ABS sensor cable 3 is embedded in and integrated with the sheath (external sheath 4) of the electric brake cable 2.

  Two power supply wires 7 of the electric brake cable 2 are extended from both ends of the composite cable 5, and a connector 6a connected to a brake caliper (not shown) is provided at one end thereof. At the other end, a connector 6b is provided which is connected to a control device (not shown). Around the two power supply lines 7 extended from the composite cable 5, a protection material 8 composed of a tube, a hose or the like is provided in order to protect the power supply lines 7 from chipping and the like by the flying stones.

  The cable 3 for ABS sensor is configured by collectively covering two signal lines 9 with the inner sheath 10. The signal line 9 is configured by covering the periphery of the central conductor 9a with an insulator 9b. The insulator 9 b is made of, for example, XLPE. In the present embodiment, the ABS sensor cable 3 and the power supply line 7 are provided in contact with each other.

  In the present embodiment, the outer sheath 4 is made of a thermoplastic resin, more specifically, a thermoplastic urethane, and the inner sheath 10 is made of a crosslinked thermoplastic resin, more specifically, a crosslinked thermoplastic urethane. The outer sheath 4 is provided on the power supply line 7 and the cable 3 for the ABS sensor so as to be interposed between the power supply line 7 and the cable 3 for the ABS sensor, as shown in FIG. The outer sheath 4 is formed by extrusion molding, but when the outer sheath 4 is formed around the inner sheath 10 by extrusion of the inner sheath 10, the inner sheath 10 is melted by heat. As a result, welding between the inner sheath 10 and the outer sheath 4 can be reduced. As a result, the ABS sensor cable 3 can be easily separated and taken out of the outer sheath 4 at the end of the composite cable 5.

  The thermoplastic urethane used for the outer sheath 4 and the inner sheath 10 is resistant to chipping due to flying stones etc., so the portion covered by the sheaths 4 and 10 (around the composite cable 5 or extending from the composite cable 5 It is not necessary to cover the exposed ABS sensor cable 3 with a protective material. In addition, thermoplastic urethane has a property of being easily bent, and is suitable for the composite harness 1 used for wiring under a spring and repeatedly bent.

  Furthermore, in the present embodiment, as the inner sheath 10, one obtained by crosslinking the thermoplastic urethane to which the silane coupling agent is added is used, and the sensor portion of the ABS sensor is molded by resin molding at one end of the cable 3 for ABS sensor. (Sensor head) 11 was integrated. Nylon was used as a resin mold. The other end of the ABS sensor cable 3 is provided with a connector 6 c connected to a control device (not shown).

  When the thermoplastic urethane is crosslinked, the adhesion to the resin mold (here, nylon) can not be secured, but the silane coupling agent is activated by performing the crosslinking treatment after adding the silane coupling agent to the thermoplastic urethane. It is possible to improve the adhesion to the resin mold. As a result, the adhesion between the inner sheath 10 and the sensor unit 11 can be secured, and the intrusion of water into the sensor unit 11 can be reduced. As a result, it is possible to reduce problems such as failure of the sensor unit 11.

  A grommet 12 for fixing a fixing bracket for mounting the composite cable 5 to the vehicle body is attached to the composite cable 5. The grommet 12 is made of, for example, EPDM (ethylene propylene diene rubber). When attaching the grommet 12 to the composite cable 5, the attachment is performed while expanding the inner diameter of the grommet 12 by air. At this time, if the surface of the outer sheath 4 of the composite cable 5 is not flat, the attachment is difficult Therefore, in the present embodiment, the outer sheath 4 is formed by repeating the extrusion twice, thereby making the surface of the outer sheath 4 flat and forming the outer shape of the composite cable 5 substantially constant.

  The operation of the present embodiment will be described.

  The composite harness 1 according to the present embodiment includes a composite cable 5 in which the electric brake cable 2 and the ABS sensor cable 3 are covered with a common outer sheath 4 and integrated.

  As a result, since the electric brake cable 2 and the ABS sensor cable 3 are integrated, the wiring space of the vehicle can be effectively used, and the wiring operation can be facilitated. In addition, since the number of parts of the wiring parts can be reduced, management becomes easy.

  Further, in the present embodiment, the ABS sensor cable 3 is configured by collectively covering the two signal wires 9 with the inner sheath 10, and the outer sheath 4 is a thermoplastic resin, and a thermoplastic resin obtained by crosslinking the inner sheath 10 It consists of

  Thereby, it can be reduced that the inner sheath 10 is melted by heat at the time of formation of the outer sheath 4 (at the time of extrusion molding) and the outer sheath 4 and the inner sheath 10 are welded. It becomes possible to easily separate and take out the cable 3 for ABS sensor from the sheath 4.

  Furthermore, in the present embodiment, a material obtained by adding a silane coupling agent to thermoplastic urethane is used as the material of the inner sheath 10, and the sensor portion 11 of the ABS sensor is integrated with one end of the cable 3 for ABS sensor by resin molding. It is

As a result, the inner sheath 10 and the resin mold can be airtightly integrated, and a failure or the like of the sensor unit 11 due to the intrusion of moisture can be reduced. Further, by integrally providing the sensor unit 11 at the end of the ABS sensor cable 3, the number of parts of the wiring component can be further reduced, and the wiring operation can be facilitated.
In addition, the electric brake cable 2 is used as a conductive path for passing an electric current for causing the parking brake mechanism to function by pressing a predetermined button after the vehicle is stopped. Therefore, it is not necessary to take measures against the noise from the electric brake cable 2 with respect to the ABS sensor cable 3 which functions during traveling of the vehicle. Therefore, it is possible to unify the electric brake cable 2 and the ABS sensor cable 3 without providing a shield for noise suppression on at least one of the electric brake cable 2 and the ABS sensor cable 3.

  Next, another embodiment of the present invention will be described.

  The composite harness 21 shown in FIG. 2 is one in which a separator 22 for reducing welding of the outer sheath 4 and the inner sheath 10 is provided between the outer sheath 4 and the inner sheath 10 in the composite harness 1 of FIG. is there.

  By providing the separator 22, even when both the outer sheath 4 and the inner sheath 10 are made of thermoplastic urethane, the cable 3 for ABS sensor can be easily separated and taken out from the outer sheath 4 at the end of the composite cable 5 Is possible.

  Furthermore, if the separator 22 is made of metal and the separator 22 is provided so as to cover the ABS sensor cable 3, the separator 22 acts as a shield and the signal line 9 of the ABS sensor cable 3 is externally connected It is possible to reduce the noise mixed in. The material of the separator 22 is not limited to this, and for example, non-woven paper, non-woven fabric (for example, one made of PET), resin tape or the like can be used.

  The composite harnesses 31 and 32 shown in FIGS. 3A and 3B are obtained by providing the shield conductor 33 so as to cover the power supply line 7 of the electric brake cable 2 in the composite harness 1 of FIG. 1. FIG. 3A shows the case where the shield conductor 33 is provided so as to cover the two power supply lines 7 and the entire cable 3 for the ABS sensor. In FIG. 3B, only the two power supply lines 7 are provided. Although the case where the shield conductor 33 is provided so that it may cover is shown, either structure may be employ | adopted. Further, the shield conductor 33 may be provided to cover only the ABS sensor cable 3. As shown in FIG. 3A, when the shield conductor 33 is provided to cover the whole of the power supply line 7 and the cable 3 for ABS sensor, the shield conductor 33 is provided inside the shield conductor 33, ie around the power supply line 7 and cable 3 for ABS sensor , Inclusions 34 are inserted. As shown in FIG. 3B, by providing the shield conductor 33 so as to cover only the two power supply lines 7, the electric brake cable 2 can be used not only after the vehicle is stopped but also while the vehicle is traveling. Even if it is used to flow a current for reducing the speed, it is possible to reduce the noise on the ABS sensor cable 3 which functions during traveling of the vehicle. As a result, the electric brake cable 2 is used not only after the vehicle is stopped but also when the electric brake cable 2 is used to supply a current for reducing the speed of the vehicle while the vehicle is traveling. And the ABS sensor cable 3 can be integrated.

  By providing the shield conductor 33, it is possible to suppress the radiation noise from the power supply line 7 and to take measures against EMI (electromagnetic interference). Further, by providing the shield conductor 33, the shield conductor 33 plays the role of a separator that separates the outer sheath 4 and the inner sheath 10, and the welding of the outer sheath 4 and the inner sheath 10 is reduced to reduce the power supply wire 7 and the cable for the ABS sensor It becomes possible to facilitate the branching of three.

  Furthermore, in place of the shield conductor 33 in FIG. 3A, non-woven paper, non-woven fabric (for example, one made of PET), resin tape or the like may be provided. By providing non-woven paper or non-woven fabric in place of the shield conductor 33, welding between the outer sheath 4 and the inner sheath 10 can be reduced, and at the same time friction between the power supply wire 7 and the cable 3 for ABS sensor and the outer sheath 4 can be reduced. The power supply wire 7 and the cable 3 for ABS sensor can be easily moved (slippery) in the outer sheath 4 and stress due to bending can be reduced to improve bending durability.

  The present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

  For example, in the above embodiment, the ABS sensor cable 3 is configured by collectively covering the two signal lines 9 with the inner sheath 10, but as shown in FIGS. 4 (a) and 4 (b), the inner sheath It is also possible to omit 10. In this case, since the signal wire 9 is extended from the end of the composite cable 5, the exposed portion of the signal wire 9 is protected by a tube, a hose or the like in order to prevent chipping and the like due to flying stones. It is necessary to provide the material 42. Further, in this case, since the adhesion of the resin mold (for example, nylon) to the insulator 9 b (for example, XLPE) of the signal line 9 is not good, the sensor unit 11 can not be integrated by the resin mold. Therefore, the connector 43 may be provided at one end of the signal line 9 and connected to the sensor unit 11.

  Further, although not mentioned in the above embodiment, the electric brake cable 2 may also be covered with an inner sheath in the same manner as the ABS sensor cable 3. In this case, it is preferable to use a cross-linked thermoplastic urethane in the inner sheath or to interpose a separator between the inner sheath and the outer sheath 4 so as not to weld with the outer sheath 4. Thereby, the protective material 8 can be omitted, and the wiring operation can be made easier.

  Furthermore, although the case where the outer sheath 4 is formed of thermoplastic urethane has been described in the above embodiment, the present invention is not limited to this, and the outer sheath 4 may be formed of EPDM. Since EPDM is unlikely to cause compression set (creep), by forming the outer sheath 4 with EPDM, it becomes possible to fix the fixing bracket directly to the outer sheath 4 without attaching the grommet 12, and the wiring operation can be carried out. It becomes possible to make it easier. In addition, since a thermoplastic urethane is easy to produce a compression set (creep), it can not fix a fixing bracket directly, but the grommet 12 becomes essential.

  Furthermore, although not mentioned in the above embodiment, in addition to the electric brake cable 2 and the ABS sensor cable 3, it is of course possible to integrate another insulated wire such as a disconnection detection line or the like.

Reference Signs List 1 composite harness 2 cable for electric brake 3 cable for ABS sensor 4 external sheath 5 composite cable 6 connector 7 power supply line 8 protective material 9 signal line 10 inner sheath 11 sensor unit

Claims (6)

A composite harness for a vehicle wired from a vehicle body to a wheel,
A plurality of power supply lines comprising a central conductor and an insulator covering the central conductor;
For an ABS (Anti-Lock Brake System) sensor, which comprises a central conductor and an insulator covering the central conductor and in which a plurality of signal lines smaller in diameter than the plurality of power supply lines are covered with an inner sheath made of a thermoplastic resin Cable,
An outer sheath made of a thermoplastic resin covering the plurality of power supply lines and the cable for the ABS sensor;
Equipped with
The inner sheath penetrates between the plurality of signal lines, and
The said internal sheath is in contact with these power supply wires. A separator that covers the plurality of power supply lines and the cable for the ABS sensor is provided between the plurality of power supply lines and the cable for the ABS sensor and the outer sheath,
The vehicle composite harness according to claim 1, wherein the separator is made of paper, non-woven fabric, or resin tape. The plurality of power supply lines are in contact with each other, and the plurality of signal lines are in contact with each other.
The composite harness for a vehicle according to claim 1. The outer sheath is made of thermoplastic urethane,
The fixing bracket is attached to the outer periphery of the said outer sheath via EPDM (ethylene propylene diene rubber) provided in a part of longitudinal direction of the said outer sheath. For vehicles in any one of Claims 1-3. Composite harness. The plurality of power supply lines are extended in a state where a protective material is provided around the end of the outer sheath, and the cable for an ABS sensor is connected to the plurality of signal lines from the end of the outer sheath The plurality of power supply wires are extended longer than the length of extension from the end of the outer sheath in a state of being covered by the inner sheath,
The composite harness for a vehicle according to any one of claims 1 to 4, wherein a sensor head is provided at an end portion of the cable for an ABS sensor. The outer sheath is an extruded body,
The composite harness for vehicles according to any one of claims 1 to 5.