JP5928249B2 - Corrugated clamp - Google Patents

Description

  The present invention relates to a corrugated clamp.

  2. Description of the Related Art Conventionally, a rotating member that includes a rotating member that holds a wire harness configured by covering a plurality of electric wires with a corrugated tube and a fixture body that rotatably holds the rotating member in the circumferential direction. A harness fixture provided with a curved harness guide wall is proposed (for example, see Patent Document 1). With this harness fixture, such a configuration allows the wire harness to be fitted (bent) along the harness guide wall when the wire harness is largely bent or swings with the harness fixture as a fulcrum. The wear of the wire harness can be suppressed.

JP 2003-289618 A

  In such a harness fixture, one of the problems is to prevent a large stress (stress) from acting on the wire harness when the wire harness is bent. And considering that it can be attached to the wire harness in a limited space such as an automobile, it is useful to devise different configurations having the same function.

  The corrugated clamp of the present invention is mainly intended to suppress large stress from acting on the corrugated tube when the corrugated tube is bent.

  The corrugated clamp of the present invention employs the following means in order to achieve the main object described above.

The corrugated clamp of the present invention is
A corrugated clamp attached to the corrugated tube so as to cover the outer peripheral side of the corrugated tube by the first member and the second member divided in the circumferential direction,
The first member and the second member, when viewed in the axial direction, are respectively a rib portion having a rib formed on the inner peripheral side, and a rib on the inner peripheral side that is continuous in the axial direction of the rib portion. A non-rib portion that is not formed, and
The first member has a first engagement portion formed on the rib portion and a second engagement portion formed on the non-rib portion.
In the second member, a third engagement portion that can engage with the first engagement portion is formed in the rib portion, and a fourth engagement portion that can engage with the second engagement portion in the non-rib portion. An engaging portion is formed;
This is the gist.

  In the corrugated clamp of the present invention, the first engaging portion formed on the rib portion of the first member and the rib portion of the second member with the first member and the second member covering the outer peripheral side of the corrugated tube A second engaging portion formed on the non-rib portion of the first member, and a fourth engaging portion formed on the non-rib portion of the second member. Are attached to the corrugated tube. Thereby, when the corrugated clamp is viewed in the axial direction, the engagement portion between the first engagement portion and the third engagement portion, the engagement portion between the second engagement portion and the fourth engagement portion, The bending rigidity of the portion between the two (hereinafter referred to as the portion between the engagement portions) is lowered. Therefore, when the corrugated tube is acted after the bending direction, the corrugated clamp is easily bent at the portion between the engagement portions, and the corrugated tube bends together with the corrugated clamp. Thus, it is possible to suppress the action of a large stress (stress). As a result, wear of the corrugated tube can be suppressed.

  In such a corrugated clamp of the present invention, one end portion in the circumferential direction of the first member and one end portion in the circumferential direction of the second member may be connected.

  In the corrugated clamp of the present invention, the outer peripheral side of at least one of the rib members of the first member and the second member is attached to a bracket on the vehicle body side and fixed to the vehicle body. You can also.

It is a block diagram which shows the outline of a structure of the hybrid vehicle 20 to which the corrugated clamp as an Example of this invention is applied. It is explanatory drawing which shows an example of the external appearance of the hybrid vehicle 20, and a mode that the apparatus for driving | running | working was mounted. It is an external view which shows the external appearance of the power cables 43 and 44 (corrugated tubes 47 and 48) and the corrugated clamp 80. FIG. 4 is a cross-sectional view showing cross sections of power cables 43 and 44 (corrugated tubes 47 and 48) and a corrugated clamp 80. FIG. 4 is a configuration diagram showing an outline of a partial configuration of power cables 43 and 44 (corrugated tubes 47 and 48) and a corrugated clamp 80. FIG. 4 is a configuration diagram showing an outline of a partial configuration of power cables 43 and 44 (corrugated tubes 47 and 48) and a corrugated clamp 80. FIG. 4 is a configuration diagram showing an outline of a partial configuration of power cables 43 and 44 (corrugated tubes 47 and 48) and a corrugated clamp 80. FIG. It is explanatory drawing which shows a mode when the corrugated tubes 47 and 48 and the corrugated clamp 80 are bent. It is a block diagram which shows the outline of a one part structure of the power cables 43 and 44 (corrugated tube 47, 48) and the corrugated clamp 80B of a modification. It is a block diagram which shows the outline of a one part structure of the power cables 43 and 44 (corrugated tube 47, 48) and the corrugated clamp 80B of a modification. It is a block diagram which shows the outline of a one part structure of the power cables 43 and 44 (corrugated tube 47, 48) and the corrugated clamp 80B of a modification.

  Next, the form for implementing this invention is demonstrated using an Example.

  FIG. 1 is a configuration diagram illustrating an outline of a configuration of a hybrid vehicle 20 to which a corrugated clamp as an embodiment of the present invention is applied. FIG. 2 illustrates an appearance of the hybrid vehicle 20 and a state in which a traveling device is mounted. It is explanatory drawing which shows an example. As shown in FIG. 1, the hybrid vehicle 20 of the embodiment includes an engine 22 that outputs power using gasoline, light oil, or the like as a fuel, and an engine electronic control unit (hereinafter referred to as an engine ECU) 24 that drives and controls the engine 22. A planetary gear 30 in which a carrier is connected to the crankshaft 26 of the engine 22 and a ring gear is connected to a drive shaft 36 connected to drive wheels 38a and 38b via a differential gear 37, and a synchronous generator motor, for example. The motor MG1 whose rotor is connected to the sun gear of the planetary gear 30, the inverter 41 connected to the motor MG1 via the power cable 43 and driving the motor MG1, and the rotor is configured as, for example, a synchronous generator motor, and the rotor is a drive shaft 36. Motor MG2 connected to the motor MG2 And an inverter 42 for driving the motor MG2 connected via the power cable 44, and a motor electronic control unit (hereinafter referred to as a motor control unit for driving the motors MG1 and MG2 by controlling the switching elements (not shown) of the inverters 41 and 42). A motor 50), a battery 50 that exchanges electric power with the motors MG1 and MG2 via inverters 41 and 42 configured as, for example, a lithium ion secondary battery and connected by a power cable 54, and a battery that manages the battery 50 Electronic control unit (hereinafter referred to as battery ECU) 52, shift position from shift position sensor, accelerator opening from accelerator pedal position sensor, brake pedal position from brake pedal position sensor, vehicle Engine ECU24 and motor ECU40 inputs the data such as the vehicle speed from sensor and performs a communication with the battery ECU52 controls the entire vehicle hybrid electronic control unit (hereinafter, referred to HVECU) includes a 70.

  Here, the engine 22, the motors MG <b> 1 and MG <b> 2, and the planetary gear 30 constitute a unit (hereinafter referred to as a drive source unit) 29 that is integrated in a state of being housed in a housing. The inverters 41 and 42 constitute a unit (hereinafter referred to as an inverter unit) 49 that is integrated in a state of being housed in a housing.

  As shown in FIG. 2, the engine room 21 in the front part of the vehicle has a drive source attached to the vehicle body via a mount member 29a (for example, a rubber member) for suppressing transmission of vibrations to the vehicle body. The unit 29, the inverter unit 49 attached to the vehicle body directly above the vehicle of the drive source unit 29 (that is, not via the mount member), and the power cables 43 and 44 are mounted. A battery 50 is mounted behind the rear seat (not shown) at the rear of the vehicle and is connected to the inverters 41 and 42 in the inverter unit 49 by a power cable 54. As a result, the motors MG1 and MG2 can be driven by the electric power from the battery 50 to run the engine 22 intermittently, or the battery 50 can be charged by the electric power from the motor MG2 during braking. For mounting (mounting) the drive source unit 29 to the vehicle body, for example, a sub-frame to which the drive source unit 29 is previously attached is attached to the vehicle body via a plurality of mount members 29a (only one is shown in FIG. 2). Etc.

  3 is an external view showing the external appearance of the power cables 43 and 44 (corrugated tubes 47 and 48) and the corrugated clamp 80. FIG. 4 shows the power cables 43 and 44 (corrugated tubes 47 and 48) and the corrugated clamp 80. FIG. 5 to FIG. 7 are schematic diagrams showing a part of the configuration of the power cables 43 and 44 (corrugated tubes 47 and 48) and the corrugated clamp 80. FIG. 5 to 7, the power cable 43 (corrugated tube 47) and the portion of the corrugated clamp 80 corresponding to the corrugated tube 47 (substantially right half in FIG. 3) are illustrated. The corrugated tube 48) and the portion of the corrugated clamp 80 corresponding to the corrugated tube 48 (substantially the left half of FIG. 3) can be considered in the same manner as in FIGS.

  As shown in FIG. 4, the power cables 43 and 44 are composed of three U-phase, V-phase, and W-phase cables 45U, 45V, 45W, 46U, 46V, and 46W, which are formed by braided wires (not shown). It is constituted by being shielded electromagnetically and covered with corrugated tubes 47 and 48. As shown in FIGS. 3 and 4, the power cables 43 and 44 (corrugated tubes 47 and 48) are bundled (bundled) by a corrugated clamp 80, and the corrugated clamp 80 is shown in FIGS. 4 and 7. Thus, it is fixed to the bracket 100 on the vehicle body side.

  As shown in FIG. 4, the corrugated clamp 80 includes a receiving portion 81 and a lid portion 91 that are divided in the circumferential direction (the circumferential direction of the corrugated tubes 47 and 48), and one end portion 81 a in the circumferential direction of the receiving portion 81. And one end 91a in the circumferential direction of the lid 91 are connected to each other.

  As shown in FIG. 5, the receiving portion 81 and the lid portion 91 of the corrugated clamp 80 are ribs extending over the entire circumference on the inner circumferential side when viewed in the axial direction (the length direction of the corrugated tubes 47 and 48). 83, 93 includes a plurality of rib portions 82, 92 formed in the axial direction, and non-rib portions 86, 96 which are continuous in the axial direction of the rib portions 82, 92 and have no ribs formed on the inner peripheral side. . Here, the plurality of ribs 83 and 93 of the rib portions 82 and 92 are formed so as to fit into the concave portions of the corrugated tubes 47 and 48.

  Further, as shown in FIGS. 4 and 6, the corrugated clamp 80 has claws 84 and 87 formed at the other end 81b in the circumferential direction of the rib portion 82 and the non-rib portion 86 of the receiving portion 81, respectively. Claws 94 and 97 that can engage with the claws 84 and 87 are formed on the other end 91b in the circumferential direction of the rib portion 92 and the non-rib portion 96 of the lid portion 91, respectively. The corrugated clamp 80 is configured such that the claw 84 of the rib portion 82 of the receiving portion 81 and the claw 94 of the rib portion 92 of the lid portion 92 are covered with the outer peripheral side of the corrugated tubes 47 and 48 by the receiving portion 81 and the lid portion 91. And the claw 87 of the non-rib portion 86 of the receiving portion 81 and the claw 97 of the non-rib portion 96 of the lid portion 91 are engaged, whereby the power cables 43 and 44 (corrugated tubes 47 and 48). It is attached to the power cables 43 and 44 so as to cover the outer peripheral side.

  Further, as shown in FIGS. 4 and 7, the corrugated clamp 80 is formed with a protruding portion 89 having a plurality of ribs 89 a on the outer peripheral side of the rib portion 82 of the receiving portion 81. The side bracket 100 is fixed to the vehicle body by being fixed using a fastener such as a bolt. The corrugated clamp 80 may be fixed to the vehicle body by engaging the claw of the protruding portion 89 with the claw of the bracket 100 or the like. By fixing the corrugated clamp 80 to the vehicle body, the power cables 43 and 44 (corrugated tubes 47 and 48) are fixed to the vehicle body. In this corrugated clamp 80, a plurality of protrusions 89 are formed on the outer peripheral side of the non-rib part 82 by forming the protrusions 89 on the outer peripheral side of the rib part 81 of the receiving part 81. It is easy to ensure the rigidity of the receiving portion 81 as much as the rib 83 is formed. Further, by providing the protrusion 89 with a plurality of ribs 89a, the rigidity of the protrusion 89 itself can be increased.

  In the corrugated clamp 80 according to the embodiment thus configured, the rib portions 82 and 92 of the corrugated clamp 80 and the concave portions of the corrugated tubes 47 and 48 are fitted when they are attached to the corrugated tubes 47 and 48 and fixed to the vehicle body. Therefore, the movement of the corrugated tubes 47 and 48 in the length direction and the bending direction is restricted. Further, the non-rib portions 86 and 96 allow the corrugated tubes 47 and 48 to move slightly in the bending direction and the length direction.

  Further, in the corrugated clamp 80 of the embodiment, when viewed in the axial direction (the length direction of the corrugated tubes 47 and 48), the claw 84 of the rib portion 82 of the receiving portion 81 and the claw 94 of the rib portion 92 of the lid portion 91. Compared with the engagement portion and the engagement portion between the claw 87 of the non-rib portion 86 of the receiving portion 81 and the claw 97 of the non-rib portion 96 of the lid portion 91 (the corrugated clamp in FIG. 6) The bending rigidity of the substantially central portion in the axial direction of 80 (hereinafter referred to as the portion between the engagement portions) is lowered. Therefore, when a force in the bending direction is applied to the corrugated tubes 47 and 48, the corrugated clamp 80 is easily bent at the portion between the engagement portions, and the corrugated tubes 47 and 48 are bent together with the corrugated clamp 80. In addition, it is possible to suppress a large bending stress (stress) from acting on the axial end of the corrugated clamp 80 or the like. FIG. 8 shows a state where the corrugated tubes 47 and 48 and the corrugated clamp 80 are bent. Further, when a force in the length direction (leftward in FIGS. 3 and 5 to 7) is applied to the corrugated tubes 47 and 48 from the motor MG1 and MG2 side, the corrugated tubes 47 and 48 are not rib portions 86 of the corrugated clamp 80. 96, it is possible to suppress a large stress in the longitudinal direction from acting on the corrugated tubes 47, 48. As a result, wear of the corrugated tubes 47 and 48 can be suppressed.

  As in the hybrid vehicle 20 of the embodiment, the drive source unit 29 including the two motors MG1 and MG2 is attached to the vehicle body via the mount member 29a, and the inverter unit 49 including the two inverters 41 and 42 is directly attached to the vehicle body. In this case, since the relative displacement occurs between the movements of both units caused by the movement of the vehicle body or the like, between the drive source unit 29 and the inverter unit 49 in order to connect the motors MG1, MG2 and the inverters 41, 42. It is necessary to arrange the power cables 43 and 44 to be provided with a margin so that the power cables 43 and 44 can be freely moved to some extent at a position between the drive source unit 29 and the inverter unit 49. On the other hand, the engine room 21 of the hybrid vehicle 20 has a lot of wiring and piping such as various devices and cables to be mounted, and each mounting space is limited, and the power cables 43 and 44 are relatively thick for high voltage and three phases. Since it is necessary to use a power cable, if there is too much room for the arrangement of the power cables 43 and 44, the power cables 43 and 44 (corrugated tubes 47 and 48) may interfere with each other or with peripheral components. Wear may occur. On the other hand, it is conceivable to provide a restriction wall that restricts the movement of the power cables 43, 44. However, when the restriction wall is provided, the power cables 43, 44 (corrugated tubes 47, 48) are bent when the power cables 43, 44 are bent. 44 may be worn due to a large stress. In the embodiment, based on these, the power cables 43 and 44 (corrugated tubes 47 and 48) are bundled and fixed to the vehicle body by the corrugated clamp 80 described above. Thereby, it is possible to prevent the corrugated tubes 47 and 48 from interfering with each other or with peripheral components, and to suppress the action of a large force in the bending direction or the length direction on the corrugated tube 40. As a result, wear of the corrugated tubes 47 and 48 can be suppressed.

  According to the corrugated clamp 80 of the embodiment described above, the claw 84 is formed on the rib portion 82 of the receiving portion 81 and the claw 87 is formed on the non-rib portion 86, and the claw 84 is formed on the rib portion 82 of the lid portion 91. A claw 94 that can be engaged and a claw 97 that can be engaged with the claw 87 are formed in the non-rib portion 86, and the claw 84 of the rib portion 82 of the receiving portion 81 and the claw 94 of the lid portion 91 and the rib portion 92. And the claw 87 of the non-rib portion 86 of the receiving portion 81 and the claw 97 of the non-rib portion 96 of the lid portion 91 are engaged with each other so that the power cables 43 and 44 (corrugated tubes 47 and 48) are attached. Therefore, when a large bending direction force is applied to the power cables 43 and 44, the corrugated clamp 80 is easily bent at the portion between the two engagement portions, and a large stress is prevented from acting on the power cables 43 and 44. Rukoto can. As a result, wear of the corrugated tubes 47 and 48 can be suppressed.

  In the corrugated clamp 80 of the embodiment, the non-rib portions 86 and 96 are provided on one side in the axial direction of the rib portions 82 and 92, but the power cables 43 and 44 (corrugated tube) of the modified examples of FIGS. 47, 48) and non-rib portions 86, 96 may be provided on both sides of the rib portions 82, 92 in the axial direction, as illustrated in the configuration diagram schematically showing the configuration of a part of the corrugated clamp 80B. In this case, the receiving portion 81B and the lid portion 91B of the corrugated clamp 80B are aligned with the non-rib portions 86 and 96, the rib portions 82 and 92, and the non-rib portions 86 and 96, as shown in FIGS. Thus, not only when a force in the length direction (leftward in FIGS. 9 to 11) is applied to the corrugated tubes 47, 48 from the motor MG1, MG2 side, but also the corrugated tubes 47, 48 are extended from the inverter 41, 42 side. The corrugated tubes 47 and 48 can enter the non-rib portions 86 and 96 of the corrugated clamp 80 even when a force in the direction (rightward in FIGS. 9 to 11) is applied, and the corrugated tubes 47 and 48 have a large length. It can suppress that the stress of a direction acts.

  In the corrugated clamp 80 of the embodiment, one end portion 81a in the circumferential direction of the receiving portion 81 and one end portion 91a in the circumferential direction of the lid portion 91 are connected, but the receiving portion 81 and the lid portion 91 are connected. It may be configured as a separate body. In this case, the receiving portion and the lid portion of the corrugated clamp are respectively formed with claws at both ends in the circumferential direction of the rib portion and the non-rib portion, and the receiving portion and the lid portion are engaged at both ends in the circumferential direction. By doing so, the corrugated clamp is fixed to the corrugated tube.

  In the corrugated clamp 80 of the embodiment, a protruding portion 89 is formed on the outer peripheral side of the rib portion 82 of the receiving portion 81, and the protruding portion 89 and the bracket 100 on the vehicle body side are fixed to be fixed to the vehicle body. However, the protruding portion 89 may be formed on the lid portion 91 or may be formed across the receiving portion 81 and the lid portion 91.

  In the corrugated clamp 80 of the embodiment, the power cables 43 and 44 (corrugated tubes 47 and 48) are used to be bundled and fixed to the vehicle body, but the power cable 43 (corrugated tube 47) or the power cable 44 (corrugated tube) is used. It may be used for fixing the tube 48) to the vehicle body.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. In the embodiment, the receiving portion 81 corresponds to the “first member” corresponding to the receiving portion 81, the lid portion 91 corresponds to the “second member”, the corrugated tubes 47 and 48 correspond to the “corrugated tube”, and the rib portion 82 and 92 correspond to “rib portions”, the non-rib portions 86 and 96 correspond to “non-rib portions”, the claws 84 of the rib portions 82 of the receiving portion 81 correspond to “first engaging portions”, The claw 94 of the rib portion 92 of the lid portion 91 corresponds to the “second engaging portion”, and the claw 87 of the non-rib portion 86 of the receiving portion 81 corresponds to the “third engaging portion”. The claw 97 of the rib portion 96 corresponds to a “fourth engaging portion”.

  The correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the same as that of the embodiment described in the column of means for solving the problem. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. In other words, the interpretation of the invention described in the column of means for solving the problem should be made based on the description of the column, and the examples are those of the invention described in the column of means for solving the problem. It is only a specific example.

  As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited at all to such an Example, In the range which does not deviate from the summary of this invention, it is with various forms. Of course, it can be implemented.

  The present invention is applicable to the corrugated clamp manufacturing industry.

  20 hybrid vehicle, 21 engine room, 22 engine, 24 engine electronic control unit (engine ECU), 26 crankshaft, 29 drive source unit, 29a mount member, 30 planetary gear, 36 drive shaft, 37 differential gear, 38a, 38b drive Wheel, 40 motor electronic control unit (motor ECU), 41, 42 inverter, 43, 44, 54 power cable, 45U, 45V, 45W, 46U, 46V, 46W cable, 47, 48 corrugated tube, 49 inverter unit, 50 Battery, 52 Battery electronic control unit (battery ECU), 70 Hybrid electronic control unit (HVECU), 80 Corrugated clamp, 81 Receiving part, 81a, 81b, 91a, 9 b ends, 82 and 92 ribs, 83 and 93 ribs, 84,87,94,97 claws, 86 and 96 non-rib portion, 91 lid, 89 protrusion, 100 bracket, MG1, MG2 motor.

Claims (3)

A corrugated clamp attached to the corrugated tube so as to cover the outer peripheral side of the corrugated tube by the first member and the second member divided in the circumferential direction,
Wherein the first member and the second member, the rib when viewed in the axial direction, respectively, and the rib portion ribs on the inner peripheral side is formed on the inner peripheral side as well as continuous in the axial direction of the rib portion A non-rib portion in which is not formed, and
The first member has a first engagement portion formed on the rib portion and a second engagement portion formed on the non-rib portion.
In the second member, a third engagement portion that can engage with the first engagement portion is formed in the rib portion, and a fourth engagement portion that can engage with the second engagement portion in the non-rib portion. Ri Na engagement portion is formed,
When the first engaging portion and the third engaging portion are engaged and the second engaging portion and the fourth engaging portion are engaged, when viewed in the axial direction. , Compared to a first engagement location between the first engagement portion and the third engagement portion and a second engagement location between the second engagement portion and the fourth engagement portion. The bending rigidity of the portion between the first engagement location and the second engagement location is low,
Corrugated clamp. The corrugated clamp according to claim 1,
One end portion in the circumferential direction of the first member and one end portion in the circumferential direction of the second member are connected,
Corrugated clamp. The corrugated clamp according to claim 1 or 2,
An outer peripheral side of at least one of the rib members of the first member and the second member is attached to a bracket on the vehicle body side and fixed to the vehicle body,
Corrugated clamp.

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