JP7400464B2 - Harness protection structure - Google Patents

Description

The present invention relates to a harness protection structure.

Automobiles have a power unit (engine or motor unit) installed in the vehicle's power room (engine room or motor room), and the power unit is the electrical equipment that requires electricity such as auxiliary equipment and control equipment (control unit). Has equipment.

A harness is routed around the power plant. The harness is provided with a protector, as disclosed in Patent Document 1, for example. The harness protector disclosed in Patent Document 1 is provided with a wire accommodating portion through which the harness is inserted. The internal harness is protected by the wire housing.

Japanese Patent Application Publication No. 2016-92904

A connector for connecting the harness to electrical equipment is provided at the end of the harness. On the other hand, a connector receiving portion for receiving the connector is provided on, for example, a side portion of the electrical equipment. When installing a power unit in the power compartment, the connector is normally connected to the connector socket, but depending on the layout of the vehicle and the size of the connector, it may be necessary to prevent interference with surrounding parts and structures when installed. In order to avoid this problem, it may be removed and temporarily placed in a predetermined location to ensure a gap.

During the installation work of the power plant, the harness may move regardless of the operator's intention, so a predetermined load acts on the protector. Furthermore, the harness swings due to vibrations during driving, etc., and a predetermined load is applied to the protector. Therefore, the protector is required to have a certain degree of rigidity. The protector of the above example is provided with a plurality of ribs, and the ribs maintain the rigidity of the protector.

On the other hand, if there are harness connectors or terminals that are not connected when the power unit is installed, the harness may move unintentionally during installation and interfere with surrounding parts, causing damage to the harness. Therefore, from the viewpoint of protecting the harness, it is desirable to be able to fix the connector so that it does not move during the installation work of the power plant. Therefore, the structure for protecting the harness as in the above example has room for improvement in terms of efficiently performing harness connection work and the like.

The present invention has been made to solve the above problems, and its purpose is to provide a harness protection structure that makes it possible to prevent damage to the harness and connector during installation work of a power plant.

A harness protection structure according to the present invention for achieving the above object includes a protector attached to the outer side of a power unit mounted on an electric vehicle, and inside the protector, a protective structure is provided around the power unit. A wired harness is inserted. In the harness protection structure, a connector is provided at an end of the harness located outside the protector, and the connector is configured to be connectable to a connector receiving portion provided on the outer side of the power device . A rib structure projecting upwardly of the vehicle is provided on the upper surface of the protector, and the rib structure has a first U-shaped portion that opens toward the inside of the vehicle when viewed from above the vehicle. The 1U-shaped portion is configured to be able to lock the connector when it is not connected to the connector receiving portion.

According to the present invention, it is possible to hold the connector of the harness during the installation work of the power plant, and it is possible to prevent the connector from being damaged.

FIG. 1 is a perspective view of a motor unit and the like having a harness protection structure according to the present invention, viewed from above the vehicle. FIG. 2 is a perspective view showing a state in which the connector of FIG. 1 is temporarily placed on a protector. FIG. 2 is a side view of FIG. 1, in which a solid line shows a state in which the connector is connected to a connector receiving portion, and a broken line shows a state in which the connector is temporarily placed on a protector. 4 is a sectional view taken along the line AA in FIG. 3. FIG. FIG. 2 is a perspective view showing the protector of FIG. 1 alone. FIG. 6 is a perspective view showing a state in which the cover member of FIG. 5 is removed. FIG. 6 is a side view of the protector shown in FIG. 5 when viewed from outside the vehicle. 8 is a top view of FIG. 7. FIG. FIG. 7 is a side view of the protector of FIG. 6 viewed from outside the vehicle.

Hereinafter, one embodiment of the harness 5 protection structure according to the present invention will be described with reference to the drawings (FIGS. 1 to 9).

In addition, in the figure, the arrow Fr direction indicates the front in the vehicle longitudinal direction. The "front part (front end) and rear part (rear end)" in the description of the embodiment correspond to the front part and the rear part in the longitudinal direction of the vehicle. Further, arrows R and L indicate the right and left sides in the vehicle width direction, respectively, and "left and right" in this embodiment correspond to "left side" and "right side" when the occupant faces the front of the vehicle. There is.

The harness protection structure of this embodiment protects a harness 5 wired around a power device (motor unit 1 in this example) arranged in a power room (motor room in this example) located at the front of the vehicle. It is a structure for As shown in FIGS. 1 to 3, a unit installation section 8 for installing the motor unit 1 is provided in the motor room. The unit installation section has, for example, a substantially rectangular frame formed by two front-rear frames and two width-direction frames, and is configured such that the motor unit 1 can be installed on the frame. .

A protector 20 for protecting the harness 5 is provided on the outer side of the motor unit 1 in the vehicle width direction (the right side in the example of FIG. 2). A harness 5 is inserted into the protector 20. Further, on the right side of the motor unit 1 on the vehicle upper side of the protector 20, a connector receiving portion 2 is provided to which a connector 10 of a harness 5, which will be described later, is connected. The connector receiving portion 2 protrudes from the right side of the motor unit 1 toward the right outer side in the vehicle width direction, and has a rectangular opening extending in the vehicle longitudinal direction at its tip.

Furthermore, a harness terminal 3 is provided on the vehicle lower side of the protector 20 on the right side of the motor unit 1 . Further, a protection structure 50 for protecting the connector receiving part 2 is attached to the upper side of the vehicle of the connector receiving part 2.

The harness 5 includes a high voltage harness and a low voltage harness. A connector 10 is provided at the end of the harness 5 located outside the protector 20. As described above, the connector 10 is connectable to the connector receiving portion 2 of the motor unit 1.

First, the outline of the structure of the protector 20 will be explained. As shown in FIGS. 1 and 2, the protector 20 extends in the longitudinal direction of the vehicle, and has an upper surface portion 21 and a support portion 30 as shown in FIGS. 5 and 6. The support portion 30 is provided with a plurality of insertion portions through which the harness 5 is inserted. Details of the support section 30 will be explained later.

As shown in FIGS. 5, 6, and 8, the upper surface portion 21 is provided with a rib structure 22 having a first U-shaped portion 23 and a second U-shaped portion 27. The first U-shaped portion 23 protrudes upward from the upper surface portion 21 of the vehicle, and is formed to open toward the left side in this example, on the inside of the vehicle, specifically on the inside in the width direction of the vehicle, when viewed from above the vehicle. The first U-shaped portion 23 is configured to be able to lock the connector 10 that is not connected to the connector receiving portion 2 . In this embodiment, the connector 10 can be temporarily placed in the first U-shaped portion 23.

Here, the structure of the connector 10 will be explained. As shown in FIGS. 1 to 3, the connector 10 is box-shaped as a whole, and includes a harness insertion part 11 into which the harness 5 is inserted, and an insertion part (not shown) into which the harness 5 is inserted. have. In this example, the direction in which the harness 5 is inserted is approximately perpendicular to the direction in which it is inserted into the connector receiving portion 2 . Specifically, when the connector 10 is connected to the connector receiving part 2, the harness insertion part 11 is provided at the rear or side part of the connector 10, and the harness 5 is inserted into the harness insertion part 11 from the vehicle rear side of the connector 10. inserted into.

Further, the connector 10 is provided with a locked portion 12, as shown in FIGS. 1 and 2. The locked portion 12 is located on the back side of the harness insertion portion 11, and is provided, for example, at the front portion of the connector 10 when the connector 10 is connected to the connector receiving portion 2. In this state, the locked portion 12 includes a hole 12a that extends in the vertical direction of the vehicle, and a protrusion 12b that projects toward the rear of the vehicle on one side (the right side in FIG. 1) of the hole 12a. The locked portion 12 is locked by a locking portion 24A, which will be described later.

Next, details of the structure of the protector 20 will be explained. As shown in FIGS. 5, 6, and 8, the first U-shaped portion 23 includes a front wall 24, an outer wall 25, and a rear wall 26. As shown in FIGS. The front wall portion 24 is located at the front of the first U-shaped portion 23, projects upward from the front end of the upper surface portion 21, and extends in the vehicle width direction. In this example, the front wall portion 24 extends from the right end of the front end of the upper surface portion 21 toward the left side.

The outer wall portion 25 projects upward from the right side of the upper surface portion 21 and extends toward the rear of the vehicle from the right end of the front wall portion 24 . In this example, the outer wall portion 25 is provided at a position slightly shifted to the left of the right end of the upper surface portion 21. The rear wall portion 26 protrudes upward from the vehicle from an intermediate portion of the upper surface portion 21 in the longitudinal direction of the vehicle, and extends from the rear end of the outer wall portion 25 to the left end of the upper surface portion 21 .

Further, the front wall portion 24 is provided with a locking portion 24A capable of locking the locked portion 12 of the connector 10. As shown in FIGS. 5 and 6, the locking portion 24A has a vertical wall 24a and an inclined wall 24b. The vertical wall 24a is formed by a portion of the front wall portion 24 of the rib structure 22 from the middle portion in the vehicle width direction to the left end projecting upwardly of the vehicle. The inclined wall 24b is inclined toward the rear of the vehicle from the upper end of the vertical wall 24a toward the rear of the vehicle.

As described above, when the connector 10 is not connected to the connector receiving part 2, the connector 10 can be temporarily placed in the first U-shaped part 23 of the protector 20. When the connector 10 is temporarily placed in the first U-shaped portion 23, the inclined wall 24b of the locking portion 24A is inserted into the hole 12a of the locked portion 12. At this time, the protruding part 12b of the locked part 12 is in a state extending in the vehicle width direction, and the protruding part 12b is locked by the vertical wall 24a of the locking part 24A so as not to move forward. By being sandwiched between the upper surface portion 21 and the upper surface portion 21, it is locked so that it does not move upward of the vehicle.

Furthermore, in the rib structure 22 of this embodiment, the upper end of the outer wall portion 25 is located above the vehicle than the upper end of the front wall portion 24 and the upper end of the rear wall portion 26 . Furthermore, in this example, the upper end of the outer wall portion 25 is located above the vehicle than the upper end of the inclined wall 24b of the locking portion 24A.

By providing the protector 20 in which the connector 10 can be temporarily placed as in this embodiment, the connector 10 of the harness 5 that is not connected to the motor unit 1 can be placed inside the first U-shaped portion 23 during the work of mounting the motor unit 1. can be temporarily held. As a result, it becomes possible to suppress unintentional movement of the harness 5 during the work, and work efficiency is improved. Further, since the ribs forming the outer wall portion 25 forming the first U-shaped portion 23 can be used as a guide, it becomes easier to temporarily place the connector 10 on the first U-shaped portion 23. Further, by providing the first U-shaped portion 23, the rigidity of the upper surface portion 21 of the protector 20 is improved, and it is possible to suppress deformation of the protector 20 in response to input from the harness 5 during assembly or due to vibration. It becomes possible.

Next, the second U-shaped portion 27 will be explained. As shown in FIGS. 5, 6, and 8, the second U-shaped portion 27 is continuous with the first U-shaped portion 23 on the rear side of the vehicle, and is a U-shaped portion that opens toward the outside of the vehicle (to the right in this example) when viewed from above the vehicle. It has a letter shape. The second U-shaped portion 27 includes a rear wall portion 26 of the first U-shaped portion 23, a rear wall portion 28 extending toward the rear of the vehicle from an inner end of the rear wall portion 26 in the vehicle width direction, and a rear end of the rear wall portion 28. and a rearmost wall portion 29 extending outward in the vehicle width direction. In this example, the rearmost wall portion 29 is the rearmost portion of the rib structure 22 .

The rear wall portion 28 is located on the vehicle inner side of the second U-shaped portion 27, and in this example, protrudes upward from the vehicle width direction inner end of the upper surface portion 21 and extends in the vehicle longitudinal direction. The front end and the rear end of the upper part of the rear wall portion 28 have an R shape, and a mounting portion 28a for attaching the protector 20 to the motor unit 1 is provided at an intermediate portion of the rear wall portion 28 in the longitudinal direction of the vehicle. It is being The mounting portion 28a has a through hole extending in the vehicle width direction, and the rear wall portion 28 is joined to the side portion of the motor unit 1 with bolts or the like.

Next, the support portion 30 of the protector 20 will be explained. As shown in FIGS. 6 and 9, the support portion 30 has a plurality of insertion portions 31, 37, and 38 through which the harness 5 is inserted, as described above. In this embodiment, the support portion 30 includes a front-back insertion portion 31, a lower insertion portion 37, and an upper insertion portion 38. As shown in FIGS. 6 and 9, the longitudinal insertion portion 31 is provided on the vehicle lower side of the upper surface portion 21 and extends in the vehicle longitudinal direction. The longitudinal insertion portion 31 has a side wall portion 32 and a bottom surface portion 33. The side wall portion 32 extends downward from the left end of the upper surface portion 21 and extends in the longitudinal direction of the vehicle. The bottom surface portion 33 extends from the lower end of the side wall portion 32 to the right side and extends in the longitudinal direction of the vehicle.

An opening 34 is provided on the right side (outside the vehicle) of the longitudinal insertion portion 31. That is, the top surface portion 21, the side wall portion 32, and the bottom surface portion 33 form a U-shaped cross section that opens toward the outside of the vehicle.

The lower insertion portion 37 extends downward from the rear end of the longitudinal insertion portion 31 in the vehicle direction. On the lower side of the bottom surface part 33 of the longitudinal direction insertion part 31, the lower insertion part 37 protrudes to the left and further extends toward the lower part of the vehicle. The upper part of the lower insertion part 37 communicates with the rear part of the insertion part 31 in the front-rear direction.

The upper insertion portion 38 extends from the upper surface portion 21 toward the upper side of the vehicle, and is inclined toward the front of the vehicle as it goes toward the upper side of the vehicle. Although not shown, the harness 5 inserted into the lower insertion part 37 branches at the upper part of the lower insertion part 37, one part is inserted into the upper insertion part 38, and the other part is inserted into the front and rear insertion part 31. inserted into.

A cover member 40 that closes the opening 34 is attached to the support portion 30, as shown in FIGS. 5, 7, and 8. As shown in FIGS. 5 and 7, the cover member 40 closes the opening 34 of the longitudinal insertion portion 31, and partially blocks the lower insertion portion 37 and the upper insertion portion 38. An upper flange 41 and a lower flange 43 are provided in a portion of the cover member 40 that closes the opening 34 of the longitudinal insertion portion 31.

As shown in FIG. 5, the lower flange 43 protrudes to the left in the vehicle width direction from the lower end of the portion that closes the opening 34 of the longitudinal insertion portion 31, and extends in the vehicle longitudinal direction. The upper flange 41 protrudes to the left from the upper end of the portion and extends in the longitudinal direction of the vehicle. The lower flange 43 is attached to the lower part of the bottom part 33 , and the upper flange 41 is attached to the upper part of the upper part 21 . The upper flange 41 is provided with a notch 42, as shown in FIGS. 5, 7, and 8. The notch 42 is cut out from the left end of the upper flange 41 to the right side, and is located inside the second U-shaped portion 27 when viewed from the side, that is, between the rear wall portion 26 and the rearmost wall portion 29 in the longitudinal direction of the vehicle. It is located between. The cutout 42 allows fluid communication between the inside of the second U-shaped portion 27 in the upper surface portion 21 and the inside of the longitudinal insertion portion 31 of the support portion 30 .

Moreover, in this embodiment, as shown in FIGS. 3 and 4, the harness terminal 3 is fixed at a position below the protector 20 on the vehicle side and overlapping the protector 20 when viewed from above. By providing the rib structure 22 on the upper surface portion 21 of the protector 20, the flow of water is directed in the horizontal direction (lateral direction, as shown in FIG. The water flow can be controlled so that it flows in the direction of arrow X3). As a result, it becomes possible to prevent the harness terminal 3 at the lower part of the motor unit 1 from getting wet.

Furthermore, by providing the notch 42 in the cover member 40, the water flowing on the upper surface portion 21 of the protector 20 can be actively directed to the insertion portion 31 in the front-rear direction. As a result, the water inside the front-back insertion part 31 flows to the harness insertion port at the front of the front-back insertion part 31 or to the lower insertion part 37. This makes it possible to drain water to a location away from parts such as the harness terminal 3 located directly below the harness terminal 3.

Furthermore, in the present embodiment, the bottom surface 33 of the longitudinal insertion portion 31 of the support portion 30 is formed with an inclined surface 33a that slopes downward toward the vehicle front, as shown in FIGS. 6 and 9. There is. The rear end of the inclined surface 33a is located on the vehicle lower side of the notch 42. As a result, the water that has passed through the notch 42 and flowed into the front-rear insertion portion 31 flows on the inclined surface 33a, so that the water can be drained out of the protector 20 from the harness insertion port at the front of the protector 20. becomes easier.

Next, the protective structure 50 will be explained. The protective structure 50 has a front fixing part 51, a rear fixing part 52, and a connecting part 53, as shown in FIGS. 1 to 3. The front fixing portion 51 is disposed on the right side surface of the motor unit 1 on the vehicle front side of the connector receiving portion 2 with a space therebetween. The front fixing portion 51 has a surface facing outward in the vehicle width direction, and a through hole is provided in the surface. A bolt or the like is inserted into the through hole, and the front fixing part 51 is joined to the right side part of the motor unit 1.

The rear fixing portion 52 is disposed on the right side surface of the motor unit 1 on the vehicle rear side of the connector receiving portion 2 with a space therebetween. The rear fixing part 52, like the front fixing part 51, has a surface facing outward in the vehicle width direction, and a through hole is provided in the surface. A bolt or the like is inserted into the through hole, and the rear fixing portion 52 is joined to the right side surface portion of the motor unit 1.

The connecting portion 53 extends in the longitudinal direction of the vehicle so as to connect the front fixing portion 51 and the rear fixing portion 52, and has an arch shape convex toward the upper side of the vehicle. The connecting portion 53 is arranged at a distance above the vehicle than the upper portion of the connector receiving portion 2 .

In this embodiment, the second U-shaped portion 27 is disposed on the vehicle lower side of the rear fixing portion 52. As a result, the protective structure 50 allows water flowing toward the connector receiving part 2 to flow, for example, to the rear fixing part 52, and from the rear fixing part 52 to the lower part of the vehicle as shown by arrows X1 and X2 in FIG. By draining water, it is possible to suppress water from getting into the connector receiving part 2 and the connector 10. Furthermore, the water flowing down from the rear fixing part 52 is guided to the front-rear insertion part 31 of the support part 30 by the second U-shaped part 27 and the notch 42 of the protector 20, thereby suppressing water from being applied to surrounding parts. It becomes possible to do so.

The description of this embodiment is an example for explaining the present invention, and does not limit the invention described in the claims. Further, the configuration of each part of the present invention is not limited to the above embodiment, and various modifications can be made within the technical scope of the claims.

For example, in the present embodiment, the second U-shaped portion 27 is disposed on the vehicle lower side of the rear fixing portion 52, but the present invention is not limited thereto. The second U-shaped portion 27 may be arranged on the vehicle lower side of the front fixing portion 51.

Further, in this embodiment, the motor unit 1 of an electric vehicle is used as an example of the power device, but the power device is not limited to this. For example, the power device may be an engine for a gasoline vehicle, or it may be applied to a power device for a hybrid vehicle.

1 Motor unit (power unit)
2 Connector receiving part 3 Harness terminal 5 Harness 8 Unit installation part 10 Connector 11 Harness insertion part 12 Locked part 12a Hole part 12b Projection part 20 Protector 21 Top part 22 Rib structure 23 First U-shaped part 24 Front wall part 24A Locking portion 24a Vertical wall 24b Inclined wall 25 Outer wall 26 Rear wall 27 Second U-shaped portion 28 Rear wall 28a Mounting portion 29 End wall 30 Support portion 31 Front-back insertion portion 32 Side wall 33 Bottom portion 33a Inclined surface 34 Opening 37 Lower insertion part 38 Upper insertion part 40 Cover member 41 Upper flange 42 Notch 43 Lower flange 50 Protective structure 51 Front fixing part 52 Rear fixing part 53 Connection part

Claims (5)

A harness protection structure that has a protector attached to the outside of a power unit mounted on an electric vehicle, and a part of the harness is routed inside the protector,
A connector is provided at an end of the harness located outside the protector, and the connector is configured to be connectable to a connector receiving portion provided on the outer side of the power device ,
A rib structure that projects upwardly of the vehicle is provided on the upper surface of the protector,
The rib structure has a first U-shaped portion that opens to the inside of the vehicle when viewed from above the vehicle;
The harness, wherein the first U-shaped part is configured to be able to lock the connector disposed inside the first U-shaped part in a state where it is not connected to the connector receiving part. Protective structure. The connector is provided with a locked part that is locked to the first U-shaped part,
The first U-shaped portion includes a front wall extending in the vehicle width direction, an outer wall extending toward the rear of the vehicle from an outer end of the front wall in the vehicle width direction, and an outer wall extending inward in the vehicle width direction from the rear end of the outer wall. a rear wall portion;
The harness protection structure according to claim 1, wherein the front wall portion is provided with a locking portion capable of locking the locked portion of the connector. The rib structure has a second U-shaped portion that is continuous to the vehicle rear side of the first U-shaped portion and opens to the outside of the vehicle when viewed from above the vehicle, and is provided on the inside of the vehicle of the second U-shaped portion. a rear wall portion joined to the outer portion of the power device ;
A support portion to which the harness is routed is provided on the vehicle lower side of the upper surface portion of the protector, an opening is provided on the vehicle outer side of the support portion, and a cover member is provided to close the opening. A flange attached to the upper surface portion of the protector is provided on the upper part of the cover member to protrude inside the vehicle, and the flange is provided with a flange located inside the second U-shaped portion when viewed from the side of the vehicle. A notch is provided such that the inside of the second U-shaped part and the inside of the support part communicate with each other,
A terminal to which the harness is connected is provided on the outer side of the power device , and the terminal is arranged below the protector in a vehicle and overlapping the protector when viewed from above. , the harness protection structure according to claim 1 or claim 2. The bottom of the support portion is formed with an inclined surface that slopes downward toward the vehicle toward the front of the vehicle, and the rear end of the inclined surface is located on the vehicle lower side of the notch. The harness protection structure according to claim 3. A protective structure is provided on the vehicle upper side of the connector receiving portion, and covers the connector receiving portion from the vehicle front side, the vehicle rear side, and the vehicle upper side;
A front side fixing part fixed to the power device is provided at the front part of the protection structure,
A rear fixing portion fixed to the power device is provided at the rear of the protective structure,
The harness protection structure according to claim 3 or 4, wherein the second U-shaped part is arranged on a lower side of the vehicle of at least one of the front fixing part and the rear fixing part. .