Cable holding structure

Abstract

To prevent a holding part that holds a cable in order to suppress interference between the cable and a peripheral component during assembly, from coming off the case after assembly.SOLUTION: A cable holding structure 1 is for a vehicle including a cable 2 connecting devices outside a case 3. The cable holding structure includes a holding part 10 which is formed integrally with the case 3 and holds the cable 2, and a fragile part which is disposed between the holding part 10 and the case 3 and is fractured in such a way that a holding part 10-side portion is separated away from the case 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a cable retention structure. [Background technology]

[0002] Patent Document 1 discloses a structure in which, when extending a wire harness in a space housing a plurality of cases, the wire harness is attached to an attachment and the attachment is fixed to the case to attach the wire harness to the case. In the configuration described in Patent Document 1, the attachment holds the wire harness in a state in which the attachment extends over the entire extension direction of the wire harness in order to prevent the wire harness from interfering with surrounding components when assembling the plurality of cases. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-063282 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the configuration described in Patent Document 1, the attachment is mounted on the vehicle while being fixed to the case, so there is a possibility that the attachment may be damaged by the vibration of the vehicle acting on the attachment. If the attachment is damaged, it may fall off the case, and the fallen object may act as a foreign object and cause failures in other parts.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and aims to provide a cable holding structure that can prevent a holding portion that holds a cable to suppress interference between the cable and surrounding components during assembly from falling off the case after assembly. [Means for solving the problem]

[0006] The present invention provides a cable holding structure intended for vehicles equipped with a cable that connects devices outside the case, and is characterized in having a holding portion that is formed integrally with the case and holds the cable, and a fragile portion that is provided between the holding portion and the case and breaks so as to separate the portion on the holding portion side from the case. Effect of the Invention

[0007] In the present invention, the retaining part can be separated from the case by breaking the fragile part after assembling the unit including the case. This prevents the retaining part from being damaged and falling off due to vibrations of the vehicle, and prevents it from becoming a foreign object when damaged. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a side view that illustrates a cable holding structure according to an embodiment. [Diagram 2] FIG. 2 is a perspective view that illustrates a cable holding structure. [Diagram 3] FIG. 3 is a diagram for explaining the shape of the fragile portion. [Figure 4] FIG. 4 is a diagram for explaining a portion on the side to be removed by the weakened portion. [Diagram 5] FIG. 5(a) is a diagram showing a weakened portion in a first modified example, and FIG. 5(b) is a diagram showing a weakened portion in a second modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a cable holding structure according to an embodiment of the present invention will be described in detail, however, the present invention is not limited to the embodiment described below.

[0010] FIG. 1 is a side view showing a schematic diagram of a cable holding structure in an embodiment. The cable holding structure 1 is a structure that is mounted on a vehicle and holds a cable 2 that connects devices together. The vehicle is an electric vehicle equipped with a power control unit (PCU) and includes a case 3 that houses the PCU inside. The cable 2 is a cable that connects devices (on-board devices) mounted on the vehicle, and is disposed so as to extend outside the case 3 to connect the devices together. For example, the cable 2 is formed of a shift cable. This cable holding structure 1 is intended for vehicles that include the cable 2 that connects devices together outside the case 3.

[0011] Furthermore, the cable retention structure 1 temporarily retains the cable 2 to prevent interference between the cable 2 and surrounding components when assembling a unit including the case 3. "Temporarily" refers to when assembling a unit including the cable 2 and the case 3. The surrounding components are components other than the device to which the cable 2 is connected, and are components other than the case 3. For example, the surrounding components are components that are assembled near the case 3.

[0012] After the unit is assembled, the assembly of other parts is also completed, so the cable 2 does not interfere with the installation location of the other parts. Therefore, the cable holding structure 1 is configured to release the holding state of the cable 2 after the unit is assembled. Specifically, after the unit including the cable 2 and case 3 is mounted on the vehicle, the cable holding structure 1 becomes unnecessary. In short, the cable holding structure 1 is a structure that is removed after the unit is mounted, taking into account the risk of the cable falling off when it is damaged due to vibration of the vehicle.

[0013] As shown in Fig. 1, the cable holding structure 1 has a structure integrated into the side portion of the case 3, and holds the cable 2 extending across a position facing the side of the case 3. This cable holding structure 1 is made of a resin-based material.

[0014] In the example shown in Fig. 1, the cable holding structure 1 is provided on a fixing member 4 that is bolted to the side of a case 3. The fixing member 4 is fixed to the case 3, so that the cable holding structure 1 is integrated with the case 3. Note that Fig. 1 shows a state before the unit is assembled, i.e., before it is mounted on a vehicle. Also, the fixing member 4 is not an essential component, and the cable holding structure 1 may be formed on the case 3.

[0015] As shown in FIG. 2, the cable holding structure 1 includes a holding portion 10 and a fragile portion 20.

[0016] The holding portion 10 is a portion that holds the cable 2. The holding portion 10 is formed integrally with the case 3 before the unit is assembled. The holding portion 10 has a claw portion 11 and a protrusion 12. The claw portion 11 is a plate-shaped portion formed to face the side surface of the case 3. The protrusion 12 is a portion that protrudes from the side surface of the case 3. The claw portion 11 and the protrusion 12 are formed into a shape that enables them to hold the outer periphery of the cable 2.

[0017] The fragile portion 20 is provided between the holding portion 10 and the case 3, and is a portion that breaks so that the portion on the holding portion 10 side separates from the case 3. The fragile portion 20 is a portion that breaks when it is no longer necessary for the cable 2 to be held by the cable holding structure 1, and is formed in a shape that is prone to stress concentration when the holding portion 10 is bent. The fragile portion 20 is formed so that stress concentration occurs in the fragile portion 20 when an external force is applied to the holding portion 10 so as to bend the base portion of the protrusion 12 in the thickness direction of the protrusion 12.

[0018] For example, as shown in Figs. 2 and 3, the fragile portion 20 is configured to include a notch such as a groove that forms the boundary between the portion connecting the holding portion 10 and the case 3 side. The fragile portion 20 has a round groove, i.e., a groove shape consisting of a curved surface. At the base portion of the protruding portion 12, the fragile portion 20 is provided on both sides in the thickness direction of the protruding portion 12. In other words, the fragile portion 20 is added to the base of the protruding portion 12 so that the holding portion 10 breaks (separates). In this way, the fragile portion 20 is formed to have a strength weaker than that of the holding portion 10.

[0019] After the unit including the case 3 is mounted on the vehicle, the cable 2 does not interfere with surrounding components, so the holding part 10 can be removed by breaking the fragile part 20, as shown in Fig. 4. This makes it possible to prevent the cable holding structure 1 from being damaged and the holding part 10 from falling off due to vibrations of the vehicle after the unit is mounted on the vehicle. Furthermore, removing the holding part 10 makes it possible to reduce weight and prevent it from becoming a foreign object when damaged.

[0020] As described above, according to the embodiment, when the unit including the case 3 is mounted on the vehicle, the retaining portion 10 can prevent interference between the cable 2 and the vehicle body, and after the unit is mounted, the retaining portion 10 can be removed in advance by breaking the fragile portion 20. This prevents the retaining portion 10 from affecting surrounding parts when it is broken over time. In addition, by removing the retaining portion 10 after the mounting operation is completed, the mass of the part can be reduced.

[0021] It should be noted that the cable 2 held by the cable holding structure 1 is not limited to a shift cable. That is, there is no particular limitation on the device to which the cable 2 is connected. Furthermore, the case 3 is not limited to a PCU case.

[0022] The shape of the fragile portion 20 is not limited to the round groove shown in Fig. 3 etc. As shown in Fig. 5(a), the fragile portion 20 may be formed as a wedge-shaped groove, i.e., a V-groove. Alternatively, as shown in Fig. 5(b), the fragile portion 20 may be a groove formed by combining a wedge shape and a round shape, i.e., a composite groove. [Explanation of symbols]

[0023] 1 Cable retention structure 2 Cable 3 Cases 4 Fixing member 10 Holding part 11 Claw part 12 Protrusion 20 Weakened Part

Claims

[Claim 1] A cable holding structure for a vehicle having a cable that connects devices together outside the case, a holding portion formed integrally with the case and configured to hold the cable; a fragile portion provided between the holding portion and the case, the fragile portion being capable of breaking so as to separate from the case at a portion on the holding portion side; A cable holding structure comprising:

Images