JP6098956B2 - vehicle - Google Patents

Description

  The present invention relates to a vehicle.

  There are many cases where two cables are wired symmetrically (plane symmetry) such as wiring under the spring of the vehicle (exposed portion below the suspension) and wiring of the arm portion of the industrial robot.

  In particular, when a cable is wired in a narrow space such as under the spring of a vehicle, it is necessary to predict the wiring shape between fixed portions for fixing the cable in advance and to design the wiring so as not to interfere with peripheral members. In addition, as a cable wired under the spring of a vehicle, the cable which performs the power supply and signal transmission to an in-wheel motor (patent document 1), an ABS (Antilock Brake System) sensor, an electric brake, etc. is mentioned, for example.

  In such a cable wiring structure, it is normal to use the same structure as two cables wired symmetrically.

JP 2011-961 A

  By the way, when using the single core cable which has the conductor which twisted the several strand, or the multi-core cable which has the core which twisted the several core wire, as shown to Fig.3 (a), (b) When the cable 31 is bent, deformation (hereinafter referred to as twist deformation) due to the twisted structure of the conductor and the core wire occurs.

  Therefore, when cables having the same structure are used in symmetrical wiring locations, there is a problem that the wiring shape is not symmetrical due to the influence of twisting deformation, and the relationship with the peripheral members is not the same on the left and right.

  As an example, using FIG. 4, the cable wiring using the cable 31 for the in-wheel motor 41 wired under the spring of the vehicle having exactly the same structure (the cable 31 causing twisting deformation shown in FIG. 3). The structure 40 will be described.

  As shown in FIG. 4A, in the cable wiring structure 40, the cable 31 is bent between the vehicle body side fixing portion 43 provided on the vehicle body 42 side and the wheel side fixing portion 45 provided on the wheel 44 side. It is wired in the state that was done.

  As shown in FIG. 4B, when the cable 31 having the same structure is used, the twisted deformation in the front view has the same shape, and the two left and right cables 31 do not have a symmetrical shape. In the example of FIG. 4B, the right cable 31 is twisted and deformed so that the cable 31 is separated from the vehicle body 42, but the left cable 31 is twisted so that the cable 31 approaches the vehicle body 42. The deformation is acting, and the cable 31 and the vehicle body 42 interfere with each other.

  For this reason, in the conventional cable wiring structure 40, when the cable 31 is wired in a narrow space such as under the spring of a vehicle, the twist deformation is taken into consideration so as not to interfere with peripheral members such as the vehicle body 42. There is a problem in that it is necessary to design the left and right wirings separately, which takes time.

  Further, in the conventional cable wiring structure 40, the same wiring shape is not formed on the left and right due to the influence of twisting deformation. Therefore, especially when the cable is swung, such as under the spring of a vehicle, it is spatially separated from the peripheral members. Therefore, there is a problem in that the wiring design margin becomes low, and the wiring design margin becomes low.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle capable of facilitating wiring design and improving the tolerance of wiring design.

  The present invention has been made to achieve the above object, and includes a vehicle body, a right wheel disposed on the right side with respect to the center of the vehicle body, and a left wheel disposed on the left side with respect to the center of the vehicle body. And a single-core right cable having a conductor formed by twisting a plurality of strands, and extending from the vehicle body to the left wheel. A single-core left cable having a conductor in which a plurality of strands are twisted together, and the right cable and the left cable have twist directions of the plurality of strands opposite to each other. It is a vehicle.

  Further, the present invention provides a vehicle having a vehicle body, a right wheel disposed on the right side with respect to the center of the vehicle body, and a left wheel disposed on the left side with respect to the center of the vehicle body. Wired to extend to the right wheel, a multi-core right cable having a core in which a plurality of core wires are twisted, and wired to extend from the vehicle body to the left wheel, and a plurality of core wires are twisted together A multi-core left cable having a core, wherein the right cable and the left cable are vehicles in which twist directions of the plurality of core wires are opposite to each other.

  A laterally wound outer conductor is provided on each of the outer peripheral sides of the right cable and the left cable, and the winding direction of the outer conductor of the right cable and that of the left cable are opposite to each other. It may be a direction.

  The right cable and the left cable may be bent and wired between fixing portions that fix the cables.

  The right cable and the left cable are provided with discriminating means for discriminating whether the right cable and the left wheel are wired from the vehicle body to the right wheel. Also good.

  The discriminating means may be the color of the insulator of the right cable and the left cable, and the color of the insulator of the right cable and the color of the insulator of the left cable may be different.

  The right cable and the left cable may be a cable that transmits a signal to an ABS sensor or a cable that supplies power to an electric brake.

  According to the present invention, a vehicle capable of facilitating wiring design and improving the tolerance of wiring design can be provided.

It is a figure which shows the cable wiring structure which concerns on one embodiment of this invention, (a) is a side view, (b) is a front view. It is a figure explaining the difference in the twist deformation by the difference in the twist direction of a conductor. It is a figure explaining the twist deformation | transformation of a cable, (a) is a side view, (b) is a front view. It is a figure which shows the conventional cable wiring structure, (a) is a side view, (b) is a front view.

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

  FIG. 1 is a diagram showing a cable wiring structure according to the present embodiment, in which (a) is a side view and (b) is a front view.

  As shown in FIG. 1, in the present embodiment, as an example, an in-wheel motor wired under the spring of the vehicle (that is, exposed outside and extended from the vehicle body to the wheel below the suspension). The cable wiring structure 1 of the cable 2 for 11 will be described. However, the present invention is not limited to this, and the cable 2 may be a cable for supplying power and transmitting signals to the ABS sensor and the electric brake. The present invention is not limited to vehicle wiring, and can be applied to any case where two cables are wired symmetrically, such as wiring of an arm portion of an industrial robot.

  In the cable wiring structure 1, the cable 2 is wired in a bent state between the vehicle body side fixing portion 3 provided on the vehicle body 12 side and the wheel side fixing portion 4 provided on the wheel 13 side. That is, the two right and left cables 2 are bent and wired between the fixing portions 3 and 4 that fix the cable 2.

  These two cables 2 are wired symmetrically (in a plane symmetry or in a mirror image relationship). In the present embodiment, a single-core cable having a conductor obtained by twisting a plurality of strands is used as the cable 2. The cable 2 is configured by forming an insulator around a conductor.

  Now, in the cable wiring structure 1 according to the present embodiment, as the conductors of the two cables 2 wired symmetrically, a conductor in which the twisting directions of a plurality of strands are opposite to each other is used.

  As shown in FIG. 2, when the stranding direction of the strand is opposite, the direction of twist deformation of the cable 2 is also opposite. Therefore, it is possible to make the wiring shape of the cable 2 including the twist deformation bilaterally symmetric by wiring the cables 2 whose twist directions are opposite to each other in a bilaterally symmetric manner. It is possible to make the relationship between and the left and right equal.

  In the present embodiment, the left cable 2a in FIG. 1 (b) uses a Z twisted conductor, and the right cable 2b uses an S twisted conductor. The twist direction of the cables 2a and 2b (which Z twist (or S twist) is used) can be appropriately set depending on the relationship with the peripheral members.

  As the two cables 2a and 2b, it is necessary to use a cable that has the same twist deformation when bent. Therefore, as the two cables 2a and 2b, only the twisting direction of the conductor is different, and other structures such as the twisting pitch of the conductor and the number of strands are exactly the same.

  Note that twist deformation is likely to be noticeable when the conductor diameter is large. In particular, twist deformation becomes significant when the conductor cross-sectional area is about 5 to 30 mm 2. Therefore, when the present invention is applied when wiring the cable 2 having a conductor cross-sectional area of 5 to 30 mm 2, particularly remarkable effects can be obtained. I can say that.

  In the present embodiment, since the left and right cables 2a and 2b are used separately, the left and right cables 2a and 2b, such as different colors of the insulators of both the cables 2a and 2b, are used so that the operator does not mistakenly wire them. It is desirable to provide a discriminating means for discriminating 2b (that is, discriminating whether the wiring is to the left or the right).

  In the present embodiment, the cable 2 has an insulator formed around the conductor. However, the present invention is not limited to this, and a coaxial cable in which an outer conductor and a jacket are further formed around the insulator is used. Is also possible. In the case where a coaxial cable is used as the cable 2 and the outer conductor is wound sideways, if the winding direction of the outer conductor is also opposite in the two cables 2, the wiring shape of the two cables 2 can be changed. It becomes possible to make it more precisely symmetrical. In addition, when there is little influence which the winding direction of an outer conductor has on the twist deformation | transformation of the whole cable 2, even if it makes the winding direction of an outer conductor the same with the two cables 2, there is no problem.

  The operation of the present embodiment will be described.

  In the cable wiring structure 1 according to the present embodiment, as the conductors of the two cables 2 wired symmetrically, a conductor in which the twisting directions of a plurality of strands are opposite to each other is used.

  As a result, the twisted deformation when the cable 2 is bent is symmetrical, so if the wiring design is performed in consideration of the twisted deformation of either the left or right cable 2, the other wiring design is not performed. A symmetrical wiring shape can be obtained.

  In addition, since it becomes possible to obtain a symmetrical wiring shape, especially in the wiring design where the swing is applied, such as the unsprung wiring of the vehicle, compared to the case where the same twist direction of the conductor is used on the left and right, It becomes possible to greatly increase the design margin.

  That is, according to the present invention, it is possible to facilitate wiring design and improve the tolerance of wiring design.

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

  For example, in the above embodiment, the case where the single-core cables 2 are wired one by one on the left and right has been described. Etc.), the behavior of twisting deformation in one cable 2 is the same, so the conductor of the core wire (single-core cable 2) constituting two multi-core cables By making the twist directions opposite to each other, a symmetrical wiring can be realized.

  Furthermore, the present invention can also be applied to a case where two multi-core cables having a core formed by twisting a plurality of core wires are wired symmetrically. In this case, the twist direction of the core wire itself, not the twist direction of the conductor of each core wire, will affect the twist deformation of the entire cable, so the twist direction of a plurality of core wires is different as the core of two cables. It is better to use the one in the opposite direction.

1 Cable wiring structure 2 Cable 3 Car body side fixing part 4 Wheel side fixing part

Claims (5)

In a vehicle having a vehicle body, a right wheel disposed on the right side with respect to the center of the vehicle body, and a left wheel disposed on the left side with respect to the center of the vehicle body,
It is wired to extend from the vehicle body to the right wheel, and a single-core right cable having a conductor in which a plurality of strands are twisted together,
It is wired so as to extend from the vehicle body to the left wheel, and a single-core left cable having a conductor obtained by twisting a plurality of strands;
Have
The vehicle in which the right cable and the left cable have twist directions of the plurality of strands opposite to each other. In a vehicle having a vehicle body, a right wheel disposed on the right side with respect to the center of the vehicle body, and a left wheel disposed on the left side with respect to the center of the vehicle body,
Wired to extend from the vehicle body to the right wheel, a multi-core right cable having a core formed by twisting a plurality of core wires,
Wired so as to extend from the vehicle body to the left wheel, a multi-core left cable having a core formed by twisting a plurality of core wires,
Have
The vehicle in which the right cable and the left cable have twist directions of the plurality of core wires opposite to each other. A laterally wound outer conductor is provided on each of the outer peripheral sides of the conductors of the right cable and the left cable,
The vehicle according to claim 1, wherein the outer conductor of the right cable and the outer conductor of the left cable are wound in opposite directions. The vehicle according to any one of claims 1 to 3, wherein the right cable and the left cable are bent between fixed portions that fix the cables. The right cable and the left cable claims 1-4 vehicle according any one is a cable for supplying power to the cable or the electric brake to perform signal transmission to the ABS sensor.