JP7141998B2 - Protective member and protective structure - Google Patents

Description

The present invention relates to a protective member and protective structure for protecting a power control unit in a vehicle.

Conventionally, in hybrid vehicles and electric vehicles, a power control unit (hereinafter simply referred to as a PCU) is installed to control power such as power supply for driving the motor, power generation and storage (for example, patent documents 1).

Japanese Patent No. 6070992

Recently, compact cars such as light cars and A-segment cars are also being hybridized and electrified in order to deal with environmental problems and improve fuel efficiency. By the way, compact cars such as minicars (hereinafter also simply referred to as compact cars) have a small drive unit accommodation room (also referred to as an engine room), so it has become difficult to secure a space for mounting a PCU as described above. there is In particular, in compact vehicles, there is a demand for compact formation of the drive unit accommodation chamber in order to secure a vehicle room and luggage space, and the drive unit accommodation chamber is being formed even smaller.

However, when the PCU is mounted in the drive unit housing chamber of a compact vehicle as described above, the distance between the PCU and the vehicle body becomes small, so even if the drive unit housing chamber is deformed or damaged during a collision, for example, , the PCU should preferably be prevented from interfering with the vehicle body or the like. Furthermore, in order to improve mass productivity, it is also necessary to be able to install a member that protects the PCU with good workability even in a narrow space.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a protection member and protection structure for a PCU that facilitates hybridization and electrification even in a compact vehicle having a small drive unit housing chamber. It is another object of the present invention to provide a protective member and a protective structure that protect the PCU even when the PCU is mounted on a small vehicle and that can be mounted with good workability.

(1) A protective member of the present invention provided to solve the above-described problems is a protective member for a power control unit disposed inside a drive unit housing chamber formed in a vehicle, the protective member comprising: a side protection portion arranged to face a side surface of the power control unit; an inclined portion connected in an inclined state to an upper end of the side protection portion; one or more projections fastened to the control unit side, the inclined portion having a longitudinal reinforcing bead arranged along the inclined portion on the rear side of the projection, and the vertical A directional reinforcing bead is positioned rearwardly of at least one of said protrusions, said lateral protection having a lateral reinforcing bead positioned transversely to the axial direction of said longitudinal reinforcing bead. It is characterized by

Since the protective member of the present invention has a side protective portion that is arranged to face one or a plurality of side surfaces of the power control unit, it is possible to mitigate the impact that the power control unit receives from the side. In addition, since the protective member has an inclined portion that is connected to the upper end of the side protective portion in an inclined state, it is possible to reduce the impact that the power control unit receives from above or obliquely above. Moreover, since it has one or a plurality of projecting portions that project forward from the inclined portion and are fastened to the power control unit side, the power control unit can support the protective member. In addition, since the inclined portion has at least one longitudinal reinforcing bead arranged along the inclined portion on the rear side of the projecting portion, the impact received by the protective member from above or obliquely above is dispersed to the longitudinal reinforcing bead. can. As a result, it is possible to minimize the impact that the power control unit receives from above or obliquely above, and to suppress damage to the power control unit. In addition, since the side protection part has at least one lateral reinforcement bead arranged along the direction intersecting with the axial direction of the longitudinal reinforcement bead, the impact received from the side of the protection member is transferred to the lateral reinforcement bead. Distributable. As a result, it is possible to minimize the impact from the side that is transmitted to the power control unit, and it is possible to suppress damage to the power control unit. Further, the vertical reinforcing beads and the horizontal reinforcing beads may each be, for example, thickly formed in a rib-like shape, or may be formed by connecting an appropriate reinforcing member. In addition, since the protection member of the present invention has the side protection portion, the inclined portion, the longitudinal reinforcement bead, and the lateral reinforcement bead, the power control unit can be protected from the side, above, and obliquely above. It is possible to disperse the impact received in the vertical and horizontal directions. As a result, damage to the power control unit and interference between the power control unit and the vehicle body or vehicle members can be suppressed.

(2) In the above-described protective member, the side protection portion is formed with a plurality of lateral reinforcing beads spaced apart from each other, and longitudinal reinforcing beads are formed between the lateral reinforcing beads. good.

In the above-described protective member, a plurality of horizontal reinforcement beads are formed at intervals in the side protection portion, and vertical reinforcement beads are formed between the horizontal reinforcement beads. The rigidity of the portion is increased, and resonance of the protective member due to vibration can be suppressed. Furthermore, the lateral reinforcing bead and the longitudinal reinforcing bead disperse the force transmitted to the side protection portion in the longitudinal and lateral directions. As a result, it is possible to suppress deformation and breakage of the protective member, and it is possible to disperse and mitigate breakage of the power control unit and impact transmitted to the power control unit.

(3) In the above-described protection member, the lateral protection portion protrudes toward the power control unit and includes a protruding portion capable of contacting the power control unit, and the lateral reinforcing bead protrudes toward the power control unit. It is preferable that it is characterized by being formed extending over the part.

In the above-described protective member, the side protective portion protrudes toward the power control unit and is formed with a protruding portion that can come into contact with the power control unit. The impact can be mitigated by the projection moving from the separated state to the contact state with the power control unit. In addition, since the lateral reinforcing bead is formed to extend over the projection, it is possible to disperse and mitigate the impact applied to the projection in the lateral direction. As a result, the impact on the power control unit can be minimized, and damage to the power control unit can be suppressed.

(4) In the protective member described above, it is preferable that the protrusion and the power control unit are fastened from above the power control unit.

In the protective member described above, since the protrusion and the power control unit are fastened from above the power control unit, the protective member can be easily attached even in a narrow space. For example, in manufacturing a vehicle, it is possible to perform the installation work of the protective member from the upper side of the drive unit housing chamber, so the visibility from the operator is good, and it is easy to secure the space for operating the fastening tool. It has the effect of Moreover, it is preferable that the projecting portion fastened from the upper side of the power control unit is formed on an extension line of the longitudinal reinforcing bead or the lateral reinforcing bead. As a result, the strength of the protective member can be increased because the impact force is dispersed in the direction of the fastened protrusion.

(5) The protective member described above is characterized in that the projecting portion and the power control unit are fastened via a support bracket provided on the power control unit from above the support bracket. Good to have.

In the protective member described above, the projecting portion and the power control unit are connected via a support bracket provided on the power control unit from the upper side of the support bracket. not transmitted to the unit. Also, the impact received by the protective member is distributed to the support bracket. Therefore, damage to the power control unit is suppressed. For example, the support bracket may be provided so as to bridge the power control unit.

(6) The above-mentioned protective member is characterized in that a through hole is formed in the axial direction extension of the longitudinal reinforcing bead in one or both of the side protective portion and the inclined portion. Good to have.

Since the protective member described above has a through hole formed in one or both of the side protective portion and the inclined portion, it is possible to reduce the weight of the protective member. In addition, since the punched holes are formed on the extension of the longitudinal reinforcing beads in the axial direction, the punched holes are located at the locations reinforced by the longitudinal reinforcing beads, so that the protective member is lightweight without lowering its strength. It is possible to

(7) The above-described protection member includes a first member arranged along the width direction of the drive unit housing chamber and a second member arranged above the first member along the width direction of the drive unit housing chamber. wherein the power control unit is arranged on the front side of the first member, and the inclined portion is between the power control unit and the first member and the oblique portion of the second member It is preferably arranged below, and the side protection part is arranged between the power control unit and the first member.

In the above-described protection member, the drive unit housing chamber includes a first member arranged along the width direction of the drive unit housing chamber and a second member arranged above the first member. By having it, for example, when a vehicle collides, the protective member is likely to interfere with one or both of the first member and the second member. On the other hand, in the protection member of the present invention, the power control unit is arranged on the front side of the first member, the inclined portion is between the power control unit and the first member, and the It is arranged obliquely below the second member, and the side protection portion is arranged between the power control unit and the first member. Therefore, when an impact is received from the front side of the vehicle, for example, the protective member can prevent the impact from being transmitted from the first member and the second member to the power control unit due to the inertial force. That is, when the protective member receives an impact from the first member located on the rear side, the side protection portion protects the power control unit from the impact received from the rear side. Further, when the protective member receives an impact from the second member positioned obliquely upward, the inclined portion protects the power control unit from the impact received obliquely upward. This makes it possible to easily hybridize or electrify even a compact vehicle having a narrow housing chamber for the drive unit.

(8) The above protective member may be characterized in that the first member is the dash panel and the second member is the cowl.

The first member of the protective member described above is the dash panel, and the second member is the cowl. As a result, for example, when the vehicle receives an impact from the front side, the protective member can be prevented from being interfered with by the dash panel or the cowl due to inertial force.

(9) A protection structure provided to solve the above-described problems is characterized in that any one of the protection members described above is attached to a power control unit.

The protective structure described above presents a protective structure attached to the power control unit. Therefore, an appropriate protective structure for the power control unit including the mounting structure for the power control unit is provided.

According to the present invention, the PCU is properly protected by the protective member in the event of a vehicle collision even if the drive unit accommodating chamber is narrow. Moreover, even if the drive unit housing chamber is narrow, the PCU can be protected, so hybridization and electrification can be easily performed.

FIG. 4 is an explanatory diagram showing a state in which the protection member of the present invention is fastened to a PCU mounted on a vehicle; FIG. 4 is a plan view showing a state in which the protection member of the present invention is fastened to the PCU; FIG. 4 is a front view showing a state in which the protection member of the present invention is fastened to the PCU; FIG. 4 is an explanatory side view of a state in which the protection member of the present invention is fastened to a PCU mounted on a vehicle; 1 is a front view of one embodiment of a protection member of the present invention; FIG. 1 is a plan view of an embodiment of a protective member of the present invention; FIG. Fig. 2 is a left side view of one embodiment of the protection member of the present invention; Fig. 2 is a right side view of one embodiment of the protection member of the present invention;

Hereinafter, a protective member 10 and a protective structure 11 according to one embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the protective member 10 is attached to, for example, a power control unit 50 (hereinafter also referred to as PCU 50) housed in a drive unit housing chamber 2 formed in the front portion of the vehicle 1, thereby forming a protective structure. 11 is formed. The driving unit housing chamber 2 is formed in a substantially rectangular shape, and a dash panel 3 (hereinafter also referred to as a first member 3) partitioning the driving unit housing chamber 3 from the vehicle interior is formed along the vehicle width direction on the rear side (on the right side in the drawing). A cowl 4 (hereinafter also referred to as a second member 4) is formed on the upper end side of the first member 3 to accommodate a wiper and the like. The PCU 50 controls electric power such as an inverter that drives a motor of a hybrid vehicle, an electric vehicle, or the like. In this embodiment, the PCU 50 is formed in a rectangular parallelepiped shape as shown in FIGS. For the sake of convenience, the projections, holes, etc. on the surface of the PCU 50 are omitted in the drawing.

Next, the protective member 10 will be described in detail with reference to FIGS. 2 to 8. FIG. The protective member 10 includes a side protection portion 20 formed in the vertical direction, an inclined portion 30 connected to the upper end of the side protection portion 20 in an inclined state, and an intermediate portion extending from the inclined portion 30 to the side protection portion 20. , a projecting portion 40 projecting toward the PCU 50 and a wiring 52 or the like connected as appropriate. Further, in this embodiment, the side protection portion 20, the inclined portion 30, and the projecting portion 40 are integrally formed of a member such as resin or metal.

As shown in FIGS. 2 to 4 , the side protector 20 is arranged to face one or more side surfaces of the PCU 50 when it is fastened to the PCU 50 . In this embodiment, as shown in FIG. 4, the side protection portion 20 is arranged to face the rear side (right side in the figure) side surface of the PCU 50 .

In addition, as shown in FIGS. 5 to 8, the side protection portion 20 is formed with three horizontal reinforcing beads 21 spaced apart in the width direction (also referred to as the horizontal direction). The horizontal reinforcing bead 21 is formed along a direction intersecting with the axial direction of the vertical reinforcing bead 33a in the inclined portion 30, which will be described later. Moreover, the lateral reinforcing bead 21 is formed, for example, in the shape of a thick rib, and has a higher strength than other portions. As a result, it is possible to laterally disperse the force received from the side of the first member 3 as indicated by the arrow a in FIG. 4, for example. The lateral reinforcing bead 21 may be formed by joining a metal plate, a metal pipe, or the like instead of forming a thick wall.

The side protection part 20 has a through hole 22 formed between a plurality of lateral reinforcing beads 21 to reduce the weight. In addition, in this embodiment, vertical reinforcing beads 33c are formed in the vertical direction (vertical direction in the figure) between the plurality of horizontal reinforcing beads 21 . As a result, the force applied in the vertical direction can be dispersed in the vertical direction and also in the horizontal direction through the horizontal reinforcing bead 21 . Further, the vertical reinforcing beads 33c provided on the side protection portion 20 are formed to be lower in height than the horizontal reinforcing beads 21. As shown in FIG. Therefore, it is possible to increase the rigidity of the side protection portion 20 while maintaining the weight reduction. This suppresses resonance of the protection member 10 due to vibration of the vehicle body.

As shown in FIGS. 7 and 8 , the inclined portion 30 is formed in an inclined shape so as to continue to the upper end side of the side protection portion 20 . Thereby, when the inclined portion 30 is fastened to the PCU 50 as shown in FIG.

As shown in FIG. 5, in this embodiment, the inclined portion 30 is formed with two longitudinal reinforcing beads 33a spaced apart in the longitudinal direction, and short longitudinal reinforcing beads 33b are formed between the longitudinal reinforcing beads 33a. formed. The vertical reinforcing beads 33a and 33b are formed in the shape of thick ribs like the horizontal reinforcing beads 21, and have higher strength than other portions. The longitudinal reinforcing bead 33 may be formed by joining a metal plate, a metal pipe, or the like instead of forming a thick wall. This makes it possible to vertically disperse, for example, the force applied from the direction of the second member 4 from obliquely above or from above.

Further, the vertical reinforcing bead 33 a continues to the horizontal reinforcing bead 21 at the lower end side, and can disperse the force applied to the inclined portion 30 from the vertical direction to the side protection portion 20 as well. As a result, the PCU 50 is protected even if it receives an impact from above the second member 4 or the like as indicated by the arrow b in FIG. Further, the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 can be shaped in terms of thickness, height, etc., in consideration of the balance of the magnitude of the impact applied to each. In this embodiment, for example, the vertical reinforcing beads 33 are formed slightly lower than the horizontal reinforcing beads 21 . In the inclined portion 30 , as in the side protection portion 20 , a through hole 22 for weight reduction is formed between a plurality of vertical reinforcement beads 33 .

As shown in FIGS. 4, 7 and 8, the projecting portion 40 includes a projecting portion 40a formed on the upper end side of the inclined portion 30 and projecting portions 40b and 40c formed on both ends of the side protection portion 20 in the width direction. have. As shown in FIG. 4 , the inclined portion 30 is inclined in a direction in which the inclined surface faces the second member 4 . Thereby, the impact received from the second member 4 can be received by the inclined surface of the inclined portion 30 . Projecting portion 40 a is formed to project from the upper end of inclined portion 30 toward PCU 50 on the front side. The projecting portion 40a is composed of a planar plate-like member so as to be accessible from above. The protruding portion 40a has a fastening hole for inserting a bolt, and the protruding portion 40a is fastened to a support bracket 51 that spans the PCU 50, which will be described later, with the bolt. Thereby, the protective member 10 is fastened to the PCU 50 via the support bracket 51 to form the protective structure 11 . Protective structure 11 is formed by attaching protective member 10 to PCU 50 . A longitudinal reinforcing bead 33 is arranged along the inclined portion 30 on the rear side of the projecting portion 40a. Thereby, it is possible to disperse the impact applied to the inclined portion 30 through the longitudinal reinforcing bead 33 .

As shown in FIGS. 2 to 4, the PCU 50 has a support bracket 51 over the rear side. The support bracket 51 indirectly fastens the protection member 10 to the PCU 50 and also serves to disperse the impact force applied to the protection member 10 . It also serves to prevent the protective member 10 from resonating with vibration of the vehicle body and making noise.

Projecting portion 40 b is formed on one side surface of side protection portion 20 so as to project toward PCU 50 . The protruding portion 40b is formed of a plate-like member having a planar tip portion, similarly to the protruding portion 40a, and is provided with a fastening hole. The projecting portion 40b is fastened to the support bracket 51 with a bolt or the like in the same manner as the projecting portion 40a.

Projecting portion 40 c is formed near the lower end of one side surface of side protecting portion 20 and the upper end of the other side surface of side protecting portion 20 so as to protrude toward PCU 50 . The protruding portion 40 c is formed such that the tip portion thereof is bent into a flat shape with respect to the side surface of the side protection portion 20 , and is arranged so as to face the flat portion of the PCU 50 . One of the protruding portions 40c is preferably provided at a position symmetrical to the protruding portion 40b with respect to the center line of the protective member 10 in the width direction.

The protruding portion 40 c is arranged in a state separated from the side surface of the PCU 50 and can contact and separate from the PCU 50 . 4, the protruding portion 40c abuts against the side surface of the PCU 50 and stretches the PCU 50, thereby dispersing the force of the impact. . In this case, it is preferable to form a horizontal reinforcing bead 21 between the protruding portion 40b and the protruding portion 40c arranged in line symmetry. As a result, the force applied to the projecting portion 40b fastened to the support bracket 51 can be dispersed to the projecting portion 40c via the horizontal reinforcing bead 21 and the vertical reinforcing bead 33. FIG.

The protective member 10 and the protective structure 11 of the present invention are configured as described above. Next, based on FIG. 4, the action of the protection member 10 will be described, taking as an example the case where the vehicle 1 collides with an obstacle or the like in front.

When the vehicle 1 collides with an obstacle or the like in front, the impact force is initially received from the front side (the left side in the drawing), but the inertial force due to the subsequent rear-end collision causes the protection member 10 to move in the direction indicated by the arrow a or the arrow b in the drawing. Such a force from the rear side will be received. Along with this, the protective member 10 receives force from the direction of the first member 3 and the second member 4, and depending on the situation, the first member 3 and the second member 4 may be directly damaged and interfere with the protective member 10. sometimes. As described above, when the protective member 10 receives force in the directions of arrows a and b, for example, the vertical reinforcing beads 33, the horizontal reinforcing beads 21, and the projecting portion 40 disperse the impact force, and the PCU 50 protected. Further, when the protective member 10 is fastened to the PCU 50 via the support bracket 51, the impact force is dispersed and mitigated in the support bracket 51 as well. Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and appropriate modifications can be made within the scope of the invention.

In the above-described embodiment, the drive unit accommodation chamber 2 is arranged in front of the vehicle 1, but the drive unit accommodation chamber 2 can be arranged in various places according to the form of the vehicle 1. is possible. For example, the drive unit accommodation chamber 2 may be in the middle or rear portion of the vehicle 1 . Moreover, the shape of the PCU 50 is not limited to a rectangular shape. Also, the side protection portion 20 and the inclined portion 30 can be of suitable size and shape in accordance with the size and shape of the PCU 50 . Moreover, the material of the protective member 10 is not limited to metal, and may be resin such as CFRP that can ensure strength.

In the above-described embodiment, the protective member 10 is provided on the rear side surface of the PCU 50, but the protective member 10 may be provided not only on the rear side but also on the direction in which the PCU 50 is likely to receive an impact. For example, if the PCU 50 is susceptible to impact from the width direction (horizontal direction), the protection member 10 may be provided on the width direction side surface of the PCU 50 . Moreover, when the space of the drive unit housing chamber 2 permits, a plurality of protective members 10 may be provided.

The inclination angle of the inclined portion 30 can be set to various angles along the direction in which there is a possibility of receiving an impact from the vehicle body. Also, the inclined portion 30 and the side protection portion 20 are preferably connected in an arc shape. In the above-described embodiment, the inclined portion 30 and the side protection portion 20 are integrally formed, but they may be constructed by separate members. Various numbers of the vertical reinforcing beads 33 and the horizontal reinforcing beads 21 can be employed according to the size of the side protection portion 20 and the inclined portion 30 . Further, the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 can be of various forms depending on the magnitude of the expected impact. For example, the vertical reinforcing beads 33 and the horizontal reinforcing beads 21 may have different heights and thicknesses. This makes it possible to change the balance in the distribution direction of the force applied to the protective member 10 . Further, in the above-described embodiment, the longitudinal reinforcing bead 33 and the lateral reinforcing bead 21 are formed integrally with the side protection portion 20 and the inclined portion 30, but they are provided indirectly. can be In addition, the direction in which the axial direction of the longitudinal reinforcing bead 33 intersects the lateral reinforcing bead 21 is not limited to the orthogonal direction, and various directions can be adopted according to the direction in which the strength of the protective member 10 is desired to be increased. is. In addition, in the above-described embodiment, the longitudinal reinforcing bead 33 is formed on the axis of the projecting portion 40c. It is possible to form

In the above-described embodiment, the projecting portion 40 is formed so as to be able to contact the PCU 50 , but the distance between the PCU 50 and the projecting portion 40 is determined by the impact that the protection member 10 may receive, An appropriate interval can be set according to the rigidity. Further, in the above-described embodiment, the protruding portion 40 is arranged in a state separated from the PCU 50 in the initial state. It can be. Also, the abutting portion of the PCU 50 with which the protruding portion 40 abuts can be set at an arbitrary position, but it is preferable to make it flat in order to disperse the force received. The protruding portion 40 that abuts on the PCU 50 may have any shape according to the shape of the abutment surface of the PCU 50 that abuts against it. Good to assume.

In the above-described embodiment, the projecting portion 40 and the PCU 50 are fastened from above the PCU 50, but the direction in which the projecting portion 40 and the PCU 50 are fastened makes it easier to attach the protective member 10 to the PCU 50. Various directions can be adopted as long as the direction is For example, if attachment from the lateral direction is easy, it may be fastened from the lateral direction. Further, the fastening is not limited to bolts, and various fastening means can be employed.

In the above-described embodiment, the protrusion 40 and the PCU 50 are fastened from above via the support bracket 51 , but the direction in which the protrusion 40 and the support bracket 51 are fastened is the support bracket 51 of the protrusion 40 . Various orientations can be adopted as long as the orientation is easy to attach to. For example, if attachment from the lateral direction is easy, it may be fastened from the lateral direction. Further, the shape of the support bracket 51 can be arbitrarily shaped according to the shape of the PCU 50 . Also, a plurality of support brackets 51 may be provided. Further, the fastening is not limited to bolts, and various fastening means can be employed.

In the above-described embodiment, the through hole 22 provided in one or both of the side protection portion 20 and the inclined portion 30 is provided on the extension of the longitudinal reinforcing bead 33 in the axial direction. If possible, the vent holes 22 can be formed at various positions. The shape and size of the through holes 22 can be arbitrary depending on the required rigidity.

In the above-described embodiment, the first member 3 is the dash panel, and the second member 4 is the cowl that accommodates the wiper and the like. It is possible. The first member 3 and the second member 4 may be not only a part of the frame of the vehicle body but also various members mounted on the vehicle 1 .

In the above-described embodiment, the protective structure 11 is formed by attaching the protective member 10 to the PCU 50 via the support bracket 51, but the protective structure 11 can be , various means can be adopted. For example, the projecting portion 40 may be directly fastened to the PCU 50 .

The protective member of the present invention can be used as a protective member for PCUs mounted on hybrid vehicles, electric vehicles, and the like.

1 vehicle 2 drive unit accommodation room 3 dash panel (first member)
4 cowl (second member)
REFERENCE SIGNS LIST 10 Protective member 11 Protective structure 20 Side protection part 21 Horizontal reinforcing bead 22 Punch hole 30 Inclined part 33 Vertical reinforcing bead 33a Vertical reinforcing bead 33b Vertical reinforcing bead 33c Vertical reinforcing bead 40 Protruding part 40a Protruding part 40b Protruding part Part 40c Protruding part 50 PCU (power control unit)
51 support bracket

Claims (2)

A protective member for a power control unit arranged inside a drive unit housing chamber formed in a vehicle,
The protective member is
a side protection portion arranged to face a side surface of the power control unit;
an inclined portion connected in an inclined state to the upper end of the side protection portion;
one or a plurality of projecting portions projecting forward from the inclined portion and fastened to the power control unit side;
said ramp having longitudinal reinforcing beads disposed along the ramp;
the longitudinal reinforcing bead is positioned rearwardly of at least one of the protrusions;
The lateral protection part has a lateral reinforcing bead arranged in a direction crossing the axial direction of the longitudinal reinforcing bead ,
A protective member , wherein the lateral protection portion is formed with a plurality of lateral reinforcing beads spaced apart from each other, and longitudinal reinforcing beads are formed between the lateral reinforcing beads . A protective member for a power control unit arranged inside a drive unit housing chamber formed in a vehicle,
The protective member is
a side protection portion arranged to face a side surface of the power control unit;
an inclined portion connected in an inclined state to the upper end of the side protection portion;
one or a plurality of projecting portions projecting forward from the inclined portion and fastened to the power control unit side;
said ramp having longitudinal reinforcing beads disposed along the ramp;
the longitudinal reinforcing bead is positioned rearwardly of at least one of the protrusions;
The lateral protection part has a lateral reinforcing bead arranged in a direction crossing the axial direction of the longitudinal reinforcing bead,
The drive unit housing chamber has a first member arranged along the width direction of the drive unit housing chamber and a second member arranged above the first member,
The power control unit is arranged on the front side of the first member,
The inclined portion is arranged between the power control unit and the first member and obliquely below the second member,
A protection member, wherein the side protection portion is arranged between the power control unit and the first member.

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