JP5557370B2 - Wire harness - Google Patents

Description

  The present invention relates to a wire harness used for a vehicle such as an automobile.

  Some wire harnesses used in vehicles such as automobiles have a plurality of cables. In such a wire harness having a plurality of cables, a plurality of cables are collectively collected using a protector or the like. (See, for example, Patent Documents 1 to 3).

JP 2004-201392 A JP 2005-57968 A JP 2006-33957 A

  By the way, in a vehicle equipped with a motor such as an electric vehicle and a hybrid vehicle, relative vibration is generated between the motor and the inverter or the battery by driving the motor.

  Therefore, when connecting parts to be connected that generate such relative vibration, in a wire harness in which a plurality of cables are simply collected by a protector, the cables are rubbed by the relative vibration of the connected parts. It will fit.

  In this case, it is conceivable to cover the entire wire harness with a protector and secure the distance between the cables in the extending direction, but this is not practical because it causes a significant cost increase.

  This invention is made | formed in view of the situation mentioned above, The objective is providing the wire harness which can ensure the space | interval of several cables over an extending direction, suppressing cost increase as much as possible. It is in.

In order to achieve the above-described object, the wire harness according to the present invention is characterized by the following (1) .
(1) A wire harness connected to connected parts that vibrate relative to each other,
A plurality of cables provided with connection terminals connectable to the terminal parts of the connected parts at both ends, and clamps provided at least near both ends of each of these cables and fixed to the connected parts; Prepared,
The clamp includes a clamp body and a cover that is integrally attached to the clamp body. The clamp body and the cover are formed with recesses, and the cover is attached to the clamp body and integrated. Holding portions comprising the respective concave portions are formed by forming the cables, and the cables are arranged at intervals from each other across the extending direction by the clamps ,
And the hole and the locking part are formed in the clamp body, and the clamp is inserted into the hole with the locking part temporarily fixed to the connected part, and the clamp is connected to the connected part. It was possible to be fixed to.

In the wire harness having the above configuration (1), the vicinity of both ends of the cable is held at a distance from each other by a clamp having a plurality of holding portions, and the cables are arranged at a distance from each other in the extending direction. Even if the connected parts vibrate relative to each other, the distance between the cables can be secured.
Thereby, compared with the structure which covers the whole wire harness with a protector and ensures the space | interval of cables, the space | interval of several cables can be ensured over an extending direction, suppressing a cost increase as much as possible.
Furthermore, since the clamp is temporarily fixed to the connected portion, it becomes easy to fix the clamp to the connected portion.

  ADVANTAGE OF THE INVENTION According to this invention, the wire harness which can ensure the space | interval of several cables over an extending direction can be provided, suppressing a cost increase as much as possible.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below with reference to the accompanying drawings.

It is a perspective view of a motor, a generator, and an inverter to which a wire harness according to the present invention is wired. It is a perspective view of a motor, a generator, and an inverter to which a wire harness according to the present invention is wired. It is a perspective view of the motor and generator with which the wire harness which concerns on this invention was wired. It is a perspective view of the motor and generator with which the wire harness which concerns on this invention was wired. It is a perspective view of the wire harness which concerns on this invention, Comprising: Fig.5 (a) and FIG.5 (b) are perspective views, respectively. It is a figure which shows the clamp provided in the wire harness, Comprising: Fig.6 (a) is a perspective view, FIG.6 (b) is a front view. It is a figure which shows the clamp provided in the wire harness, Comprising: Fig.7 (a) is a perspective view, FIG.7 (b) is a front view. It is a figure which shows the clamp provided in the wire harness, Comprising: Fig.8 (a) is a perspective view, FIG.8 (b) is a front view. It is a perspective view of the connection location with the generator in the other end part of a wire harness. It is a perspective view which shows the state which each hold | maintained the several shielded cable with the clamp.

  Hereinafter, an example of an embodiment according to the present invention will be described with reference to the drawings.

  1 and 2 are perspective views of a motor, a generator, and an inverter wired with a wire harness according to the present invention. FIGS. 3 and 4 are perspective views of a motor and a generator wired with a wire harness according to the present invention. 5 (a) and (b) are perspective views of a wire harness according to the present invention.

  As shown in FIGS. 1-4, wire harness 11A, 11B is used for vehicles, such as an electric vehicle and a hybrid vehicle, for example.

  In the present embodiment, wire harnesses 11A and 11B are used in a power system in a hybrid vehicle.

  This power system includes a motor (connected portion) 21, a generator (connected portion) 22, and an inverter (connected portion) 23. The motor 21 and the inverter 23 are connected by a wire harness 11A. And the inverter 23 are connected by a wire harness 11B.

  In this power system, the motor 21 is rotationally driven by electric power from a battery (not shown) fed through the inverter 23, and the vehicle is driven by the power.

  The power system is equipped with an engine (not shown), and the generator 22 is rotated by the engine to generate electric power. The electric power generated by the generator 22 is stored in a battery (not shown) via the inverter 23. The generator 22 generates electricity by rotating with power from the wheels even when the vehicle is decelerated. That is, in this power system, the generator 22 generates electric power by regenerative energy, and the electric power is sent to the battery via the inverter 23.

  The motor 21 and the generator 22 are an AC motor and an AC generator, respectively, and as shown in FIGS. 5A and 5B, the wire harnesses 11A and 11B correspond to three phases (U, V, and W). Three shielded cables (cables) 25 are provided. As these shielded cables 25, those having a large diameter are used in order to pass a high voltage and large current. Therefore, these shielded cables 25 have high rigidity and are difficult to be deformed.

  These shielded cables 25 have a structure in which the periphery of a conductor provided at the center is covered with a shield layer made of braid via an insulator, and the outermost periphery is covered with a jacket formed of adhesive tape or the like. It has been broken.

  The shield cable 25 has a conductor and a shield layer exposed at both ends thereof, and a conductive metal connection terminal 31 is connected to each conductor, and a conductive metal fixing ring is connected to the shield layer. 33 is fixed.

  As shown in FIG. 5A, the wire harness 11A is provided with clamps 41 and 42 in the vicinity of the connection terminals 31 at both ends of the shield cable 25, respectively.

  Similarly, as shown in FIG. 5B, the wire harness 11B is provided with clamps 43 and 44 in the vicinity of the connection terminals 31 at both ends of the shield cable 25, respectively.

  The clamps 41 and 43 provided in the vicinity of one end of each of the wire harnesses 11A and 11B are formed in substantially the same shape, and have a predetermined interval as shown in FIGS. 6 (a) and 6 (b). And three holding holes (holding portions) 52 arranged in a row, and the shield cable 25 is inserted through these holding holes 52.

  The clamps 41 and 43 are molded from a synthetic resin, and have a clamp body 54 and a cover 55 that is attached to the clamp body 54 integrally. The clamp main body 54 and the cover 55 are formed with concave portions 54a and 55a having a circular arc cross section. When the cover 55 is attached to the clamp main body 54 and integrated, the holding holes 52 formed by the respective concave portions 54a and 55a are formed. Is formed.

  That is, by attaching the cover 55 to the clamp body 54 while the shield cable 25 is disposed in the concave portion 54a, the clamps 41 and 43 are attached to the shield cable 25, and are inserted into the holding hole 52 and fixed. As a result, the shielded cable 25 is clamped and arranged by the clamps 41 and 43 at a predetermined interval.

  Holes 56 are formed in the clamp body 54 in the clamps 41 and 43, and screws for fixing the clamps 41 and 43 to the inverter 23 are inserted into the hole portions 56.

  Further, the clamps 41 and 43 are formed with a locking portion 57 in the clamp main body 54, and the locking portion 57 is locked in a locking hole (not shown) formed in the inverter 23. The clamp 41 is temporarily fixed to the inverter 23.

  As shown in FIGS. 7A and 7B, the clamp 42 provided near the other end of the wire harness 11A has three holding holes (holding portions) 62 arranged at predetermined intervals. The shield cable 25 is inserted into the holding holes 62.

  The clamp 42 is formed from a synthetic resin, and includes a clamp body 64 and two covers 65 and 66 attached to the clamp body 64 integrally. The clamp body 64 and the covers 65, 66 are formed with recesses 64a, 65a, 66a having a circular arc cross section. When the covers 65, 66 are attached and integrated with the clamp body 64, the recesses 64a and 65a are integrated. , 66a is formed.

  That is, by attaching the covers 65 and 66 to the clamp body 64 while placing the shield cable 25 in the recess 64a, the clamp 42 is attached to the shield cable 25, and is inserted into the holding hole 62 and fixed. Thereby, the shielded cable 25 is clamped and arranged in a state of being spaced apart from each other by the clamp 42.

  The clamp 42 is formed with a fixing piece 68 having a hole 67 in the clamp body 64, and a screw for fixing the clamp 42 to the motor 21 is inserted into the hole 67 of the fixing piece 68. Is done.

  Further, a tool hole 69 is formed in the center of the clamp main body 64 in the clamp 42, and the fixing ring 33 of the shield cable 25 can be screwed and fixed to the motor 21 through the tool hole 69. It is like that.

  As shown in FIGS. 8A and 8B, the clamp 44 provided near the other end of the wire harness 11B has three holding holes (holding portions) 72 arranged in a row at a predetermined interval. The shield cable 25 is inserted into the holding holes 72.

  The clamp 44 is formed from a synthetic resin, and includes a clamp main body 74 and a cover 75 that is integrally attached to the clamp main body 74. The clamp body 74 and the cover 75 are formed with recesses 74a and 75a having a circular arc cross section. When the cover 75 is attached to and integrated with the clamp body 74, the holding hole 72 composed of the recess 74a and the recess 75a. Is formed.

  That is, by attaching the cover 75 to the clamp body 74 while placing the shield cable 25 in the recess 74a, the clamp 44 is attached to the shield cable 25, and is inserted into the holding hole 72 and fixed. Thereby, the shielded cable 25 is clamped and arranged in a state of being spaced apart from each other by the clamp 44.

  Holes 77 are formed in the clamp body 74 in the clamp 44, and screws for fixing the clamp 44 to the generator 22 are inserted into the holes 77.

  In the wire harnesses 11A and 11B configured as described above, the connection terminal 31 on one end side of the shielded cable 25 is inserted into a terminal box 23a provided in the inverter 23, and is connected to a terminal (not shown) in the terminal box 23a. Conducted. The fixing ring 33 on one end side of the shielded cable 25 is fixed to the terminal box 23a of the inverter 23 with a screw and is electrically connected to the grounded terminal box 23a.

  In addition, the clamps 41 and 43 provided on one end side of the wire harnesses 11A and 11B are in the state in which the locking portions 57 are locked and temporarily fixed in the locking holes formed in the inverter 23. The screw inserted into 56 is screwed into the screw hole of the inverter 23 to be fixed to the inverter 23 with screws.

  Thereby, as for wire harness 11A, 11B, the shield cable 25 is hold | maintained in the state which opened the space | interval with the clamp 41 in the one end vicinity part.

  In the wire harness 11A having one end connected to the inverter 23 side, the connection terminal 31 on the other end side of the shield cable 25 is inserted into a terminal box (terminal portion) 21a provided in the motor 21, and the terminal in the terminal box 21a (Not shown). Further, the fixing ring 33 on the other end side of the shielded cable 25 is fixed to the terminal box 21a of the motor 21 with a screw and is electrically connected to the grounded terminal box 21a.

  The clamp 42 provided on the other end side of the wire harness 11A is screwed to the motor 21 by screwing a screw inserted into the hole 67 of the fixing piece 68 into a screw hole formed in the housing of the motor 21. It is fixed.

  Thereby, as for wire harness 11A, shield cable 25 is hold | maintained in the state which opened the space | interval by clamp 42 in the other end vicinity part.

  In the wire harness 11B having one end connected to the inverter 23 side, the connection terminal 31 on the other end side of the shield cable 25 is inserted into a terminal box 22a provided in the generator 22, and a terminal (not shown) in the terminal box 22a. Is connected to. The fixing ring 33 on the other end side of the shield cable 25 is fixed to the terminal box 22a of the generator 22 with a screw and is electrically connected to the grounded terminal box 22a.

  The clamp 44 provided on the other end side of the wire harness 11B is fixed to the generator 22 by screwing a screw inserted into the hole 77 into a screw hole formed in the housing of the generator 22. .

  Thereby, as for the wire harness 11B, the shield cable 25 is hold | maintained in the state which opened the space | interval by the clamp 44 in the other end vicinity part.

  FIG. 9 shows the connection location with the generator 22 at the other end of the wire harness 11B. As shown in FIG. 9, the shielded cables 25 are arranged at intervals from each other by the clamps 44, and the intervals are maintained.

  Similarly, the shielded cable 25 is also arranged at intervals by the respective clamps 41, 42, 43 at the holding positions of the clamps 41, 42, 43, and the intervals are maintained.

  Thereby, the wire harnesses 11A and 11B are arranged at intervals in the vicinity of both ends of the shielded cable 25 by the clamps 41, 42, 43, and 44, so that each shielded cable 25 extends in the extending direction. They are arranged at intervals and the intervals are maintained.

  Here, FIG. 10 shows a state in which the plurality of shielded cables 25 are respectively held by the clamps 80. As shown in FIG. 10, even when the shield cables 25 are held by the clamps 80, the shield cables 25 can be arranged with a space therebetween.

  However, when the generator 22 is driven and a relative vibration is generated between the generator 22 and the inverter 23, the shield cable 25 is shaken by the vibration, and the shield cable 25 is shaken at a fixed portion by the clamp 80. Twisting occurs. Then, the vibration between the shielded cables 25 is further increased, and the distance between the shielded cables 25 is not maintained between the generator 22 and the inverter 23, and there is a possibility that they are in contact with each other.

  As described above, according to the wire harness according to the present embodiment, the vicinity of both ends of the shielded cable 25 is spaced from each other by the clamps 41, 42, 43, 44 having the plurality of holding holes 52, 62, 72. Since the shield cable 25 is held and spaced apart from each other in the extending direction, even if the motor 21 or the generator 22 is driven and the motor 21 or the generator 22 and the inverter 23 vibrate relative to each other, The space between the shielded cables 25 can be ensured.

  Therefore, it is possible to eliminate the problem that the shielded cables 25 are in contact with each other and damaged.

  As described above, in the wire harness of the present embodiment, the distance between the plurality of shielded cables 25 is suppressed while suppressing the cost increase as much as possible as compared with the structure in which the entire wire harness is covered with the protector to ensure the distance between the shielded cables. Can be secured in the extending direction.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  In the above-described embodiment, the case where the motor 21 and the generator 22 and the inverter 23 are connected by the wire harnesses 11A and 11B has been described as an example. Further, the present invention is not limited to between the generator 22 and the inverter 23, and can be applied to, for example, a DC motor or a generator and a battery. In this case as well, even if the motor or generator is driven and the motor or generator and the battery vibrate relative to each other, the interval between the shielded cables 25 can be secured. When connecting a direct current motor or generator and a battery, the wire harness has two shielded cables 25.

11A, 11B: Wire harness 21: Motor (connected part)
21a, 22a, 23a: terminal box (terminal part)
22: Generator (connected part)
23: Inverter (connected part)
25: Shielded cable (cable)
31: Connection terminals 41, 42, 43, 44: Clamps 52, 62, 72: Holding holes (holding portions)

Claims (1)

A wire harness connected to connected parts that vibrate relative to each other,
A plurality of cables provided with connection terminals connectable to the terminal parts of the connected parts at both ends, and clamps provided at least near both ends of each of these cables and fixed to the connected parts; Prepared,
The clamp includes a clamp body and a cover that is integrally attached to the clamp body. The clamp body and the cover are formed with recesses, and the cover is attached to the clamp body and integrated. Holding portions comprising the respective concave portions are formed by forming the cables, and the cables are arranged at intervals from each other across the extending direction by the clamps ,
In addition, a hole and a locking portion are formed in the clamp, and in a state where the locking portion is temporarily fixed to the connected portion, a screw is inserted into the hole portion and the clamp is connected to the connected portion. A wire harness characterized in that it can be fixed .

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