JP2021104756A - Protection member and protection structure - Google Patents

Abstract

To protect a power control unit (PCU) properly in a small vehicle, such as a light motor vehicle, in which a driving part storage chamber is narrow.SOLUTION: A protection member 10 protects a PCU 50 disposed in a driving part storage chamber formed at a vehicle. The protection member 10 includes: a side protection part 20 which is disposed facing a side surface of the PCU 50; and an inclination part 30 which is connected to an upper end of the side protection part 20 in an inclined state. Further, the inclination part 30 has at least one vertical reinforcement bead 33 disposed along an inclination direction. The side protection part 20 has at least one lateral reinforcement bead 21 disposed along a direction intersecting with an axial direction of the vertical reinforcement bead 33. The vertical reinforcement bead 33 and the lateral reinforcement bead 21 ease an impact received from a vertical direction and a horizontal direction.SELECTED DRAWING: Figure 3

Description

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

Conventionally, hybrid vehicles and electric vehicles are equipped with a power control unit (hereinafter, also simply referred to as PCU) for controlling electric power such as supply, power generation, and storage of electric power for driving a motor (for example, patent documents). 1).

Japanese Patent No. 6070792

Recently, in order to take measures against environmental problems and improve fuel efficiency, hybrid cars and small cars such as A-segment cars are also being hybridized and electrified. By the way, in a small car such as a light car (hereinafter, also simply referred to as a small car), since the drive unit accommodation room (also referred to as an engine room) is small, it has become difficult to secure a space for mounting the PCU as described above. There is. In particular, in a small car, there is a demand for a compact drive unit accommodating chamber in order to secure a passenger compartment and a luggage compartment, and the drive unit accommodating chamber is being formed even smaller.

However, when the PCU is mounted in the drive unit accommodating chamber of a compact car as described above, the distance between the PCU and the vehicle body becomes small, so that even if the drive unit accommodating chamber is deformed or damaged at the time of a collision, for example. , It is preferable that the PCU does not interfere with the vehicle body or the like. Furthermore, in order to increase mass productivity, it is also necessary to be able to attach a member that protects the PCU with good workability even in a narrow space.

Therefore, an object of the present invention is to provide a protective member and a protective structure for a PCU that facilitates hybridization and electrification even in a compact car having a small drive unit accommodation chamber. Another object of the present invention is to provide a protective member and a protective structure that protects the PCU and can be mounted with good workability even when the PCU is mounted on a compact car.

(1) The protective member of the present invention provided to solve the above-mentioned problems is a protective member of a power control unit arranged inside a drive unit accommodating chamber formed in a vehicle, and the protective member is a protective member. A side protection portion arranged to face the side surface of the power control unit, an inclined portion connected to the upper end of the side protection portion in an inclined state, and an inclined portion protruding from the inclined portion toward the front side to obtain the power. It has one or more protrusions fastened to the control unit side, and the slope has a longitudinal reinforcing bead arranged along the slope on the rear side of the protrusion, and the protrusion. At least one of the portions has a longitudinal reinforcing bead arranged rearward, and the lateral protection portion has a lateral reinforcing bead arranged in a direction intersecting the axial direction of the longitudinal reinforcing bead. It is a feature.

Since the protective member of the present invention has a side protective portion arranged so as to face one or a plurality of side surfaces forming the power control unit, the impact received by the power control unit from the side can be mitigated. Further, since the protective member has an inclined portion connected to the upper end of the side protective portion in an inclined state, it is possible to alleviate the impact that the power control unit receives from above or diagonally above. Further, since it has one or more protruding portions that protrude from the inclined portion toward the front side and are fastened to the power control unit side, the power control unit can support the protective member. Further, since the inclined portion has at least one vertical reinforcing bead arranged along the inclined portion on the rear side of the protruding portion, the impact received by the protective member from above or diagonally above is dispersed in the vertically reinforcing bead. can. As a result, it is possible to minimize the impact that the power control unit receives from above or diagonally above, and it is possible to suppress damage to the power control unit. Further, since the lateral protection portion has at least one lateral reinforcement bead arranged along the direction intersecting the axial direction of the vertical reinforcement bead, the impact received from the side of the protective member is applied to the lateral reinforcement bead. Can be dispersed. As a result, it is possible to minimize the impact transmitted from the side to the power control unit, and it is possible to suppress damage to the power control unit. Further, as the vertical reinforcing bead and the horizontal reinforcing bead, for example, those having a rib-like wall thickness or connecting an appropriate reinforcing member can be adopted. Further, since the protective member of the present invention has the lateral protective portion, the inclined portion, the vertical reinforcing bead, and the lateral reinforcing bead, the power control unit can be mounted from the side, above, and diagonally above. It is possible to disperse the impact received in the vertical direction and the horizontal direction. As a result, it is possible to prevent the power control unit from being damaged or the power control unit from interfering with the vehicle body or vehicle members.

(2) In the above-mentioned protective member, the lateral protective portion is formed by forming a plurality of lateral reinforcing beads at intervals, and a vertical reinforcing bead is formed between the lateral reinforcing beads. good.

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

(3) In the above-mentioned protective member, the lateral protection portion protrudes toward the power control unit and a protrusion that can come into contact with the power control unit is formed, and the lateral reinforcing bead protrudes toward the power control unit. It is preferable that the material is extended over the portions.

In the above-mentioned protective member, the lateral protective portion protrudes toward the power control unit and a protruding portion that can come into contact with the power control unit is formed. Therefore, when the protective member receives an impact, the above-mentioned protective member is described. The impact can be mitigated by shifting the protruding portion from the separated state from the power control unit to the contacting state. Further, since the lateral reinforcing bead is formed so as to extend over the protruding portion, the impact extending to the protruding portion can be dispersed and mitigated in the lateral direction. As a result, the impact on the power control unit can be minimized and the power control unit can be prevented from being damaged.

(4) In the above-mentioned protective member, it is preferable that the protruding portion and the power control unit are fastened from the upper side of the power control unit.

In the above-mentioned protective member, since the protrusion and the power control unit are fastened from the upper side of the power control unit, the protective member can be easily attached even in a narrow space. For example, in the manufacture of a vehicle, it is possible to attach the protective member from the upper side of the drive unit accommodation chamber, so that the visibility from the operator is good and it is easy to secure a space for operating the fastening tool. It plays the effect. Further, the protruding portion to be fastened from the upper side of the power control unit is preferably formed on an extension line of the vertical reinforcing bead or the horizontal reinforcing bead. As a result, the force due to the impact is dispersed in the direction of the fastened protrusion, so that the strength of the protective member can be increased.

(5) The protective member described above is characterized in that the protruding portion and the power control unit are fastened from the upper side of the support bracket via a support bracket provided on the power control unit. It would be nice to have it.

In the above-mentioned protective member, since the protrusion and the power control unit are fastened from the upper side of the support bracket via the support bracket provided on the power control unit, the impact received by the protective member is directly power controlled. Not transmitted to the unit. Further, the impact received by the protective member is dispersed to the support bracket. Therefore, damage to the power control unit is suppressed. For example, the support bracket may be provided so as to span the power control unit.

(6) The above-mentioned protective member is characterized in that a punch hole is formed on an axial extension of the vertical reinforcing bead in either one or both of the lateral protective portion and the inclined portion. It would be nice to have it.

Since the above-mentioned protective member has a hole formed in either one or both of the side protective portion and the inclined portion, the weight of the protective member can be reduced. Further, since the punching hole is formed on the axial extension of the vertical reinforcing bead, the punching hole is located at the position reinforced by the vertical reinforcing bead, so that the weight is reduced without reducing the strength of the protective member. It is possible to make it.

(7) In the above-mentioned protective member, the drive unit accommodating chamber is a first member arranged along the width direction of the drive unit accommodating chamber and a second member arranged upward along the first member. The power control unit has a member, 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 is oblique to the second member. It is preferable that the side protection portion is arranged below and is arranged between the power control unit and the first member.

The protective member described above includes a first member in which the drive unit accommodating chamber is arranged along the width direction of the drive unit accommodating chamber and a second member arranged upward along the first member. By having the protective member, for example, when a vehicle collides, one or both of the first member and the second member and the protective member are likely to interfere with each other. On the other hand, in the protective member of the present invention, 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. It is arranged diagonally below the second member, and the lateral protection portion is arranged between the power control unit and the first member. Therefore, for example, when an impact is received from the front side of the vehicle, the protective member can prevent the impact from being transmitted from the first member or 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 unit protects the power control unit against the impact received from the rear side. Further, when the protective member receives an impact from the second member located diagonally upward, the inclined portion protects the power control unit against the impact received from diagonally upward. This makes it possible to easily hybridize and electrify even a compact car having a narrow drive unit accommodation chamber.

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

In the above-mentioned protective member, the first member is a dash panel and the second member is a cowl. Thereby, for example, when an impact is received from the front side of the vehicle, it is possible to prevent the protective member from being interfered with by the dash panel or the cowl due to the inertial force.

(9) The protective structure provided to solve the above-mentioned problems is characterized in that any of the above-mentioned protective members is attached to the power control unit.

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

According to the present invention, even when the drive unit accommodating chamber is narrow, the PCU is appropriately protected by the protective member when the vehicle collides. Further, even when the drive unit accommodating chamber is narrow, the PCU can be protected, so that hybridization and electrification can be easily performed.

It is explanatory drawing which shows the state which the protection member of this invention is fastened to PCU mounted on a vehicle. It is a top view which shows the state which the protection member of this invention is fastened to PCU. It is a front view which shows the state which the protective member of this invention is fastened to PCU. It is explanatory drawing which looked at the state which the protection member of this invention was fastened to PCU mounted on a vehicle. It is a front view which concerns on one Embodiment of the protection member of this invention. It is a top view which concerns on one Embodiment of the protection member of this invention. It is a left side view which concerns on one Embodiment of the protection member of this invention. It is a right side view which concerns on one Embodiment of the protection member of this invention.

Hereinafter, the protective member 10 and the protective structure 11 according to the embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the protective member 10 has a protective structure, for example, by being attached to a power control unit 50 (hereinafter, also referred to as PCU 50) housed in a drive unit accommodating chamber 2 formed in the front portion of the vehicle 1. 11 is formed. The drive unit accommodating chamber 2 is formed in a substantially rectangular shape, and a dash panel 3 (hereinafter, also referred to as a first member 3) that separates the vehicle interior from the vehicle interior is formed on the rear side (right side in the drawing) along the vehicle width direction. Further, a cowl 4 (hereinafter, also referred to as a second member 4) in which a wiper or the like is housed is formed on the upper end side of the first member 3. The PCU 50 controls the electric power of an inverter or the like that drives a motor of a hybrid vehicle or an electric vehicle. In the present embodiment, the PCU 50 is formed in a rectangular parallelepiped shape as shown in FIGS. 1 to 4, and is arranged in front of the first member 3 and diagonally below the second member 4. In the illustration, irregularities and holes on the surface of the PCU 50 are omitted for convenience.

Next, the protective member 10 will be described in detail with reference to FIGS. 2 to 8. 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 from the inclined portion 30 to the side protection portion 20. In the above, the protrusion 40 protruding toward the PCU 50, the wiring 52 which is appropriately connected, and the like are provided. Further, in the present embodiment, the side protection portion 20, the inclined portion 30, and the protruding portion 40 are integrally formed of a member such as resin or metal.

As shown in FIGS. 2 to 4, the side protection unit 20 is arranged so as to face one or a plurality of side surfaces forming the PCU 50 when it is fastened to the PCU 50. In the present embodiment, as shown in FIG. 4, the side protection unit 20 is arranged so as to face the side surface on the rear side (right side in the drawing) of the PCU 50.

Further, as shown in FIGS. 5 to 8, three lateral reinforcing beads 21 are formed in the lateral protective portion 20 at intervals in the width direction (also referred to as the lateral direction). The lateral reinforcing bead 21 is formed along a direction intersecting the axial direction of the vertical reinforcing bead 33a in the inclined portion 30 described later. Further, the lateral reinforcing bead 21 is formed in a thick rib shape, for example, and has higher strength than other portions. Thereby, for example, the force received from the first member 3 side as shown by the arrow a in FIG. 4 can be dispersed in the lateral direction. The laterally reinforced bead 21 may be formed by joining a metal plate, a metal pipe, or the like as well as forming a wall thickness.

The side protection portion 20 has a punched hole 22 formed between the plurality of lateral reinforcing beads 21 to reduce the weight. Further, in the present embodiment, the vertical reinforcing bead 33c is formed between the plurality of horizontal reinforcing beads 21 in the vertical direction (vertical direction in the drawing). As a result, the force applied in the vertical direction can be dispersed in the vertical direction and also distributed in the horizontal direction through the lateral reinforcing bead 21. Further, the vertical reinforcing bead 33c provided in the lateral protection portion 20 is formed to be lower in height than the horizontal reinforcing bead 21. Therefore, it is possible to increase the rigidity of the side protection portion 20 while maintaining the weight reduction. As a result, the resonance of the protective member 10 due to the vibration of the vehicle body is suppressed.

As shown in FIGS. 7 and 8, the inclined portion 30 is formed in an inclined shape so as to be continuous with the upper end side of the side protection portion 20. As a result, when the inclined portion 30 is fastened to the PCU 50 as shown in FIG. 4, it is located diagonally below the second member 4 and is arranged so as to face the second member 4.

As shown in FIG. 5, in the present embodiment, in the inclined portion 30, two vertical reinforcing beads 33a are formed at intervals in the vertical direction, and a short vertical reinforcing bead 33b is formed between the vertical reinforcing beads 33a. It is formed. The vertical reinforcing beads 33a and 33b are formed in a thick rib shape like the horizontal reinforcing beads 21, and have higher strength than the other portions. The vertical reinforcing bead 33 may be formed by joining a metal plate, a metal pipe, or the like as well as forming a wall thickness. Thereby, for example, the force applied from the diagonally upper side or the upper side applied from the direction of the second member 4 can be dispersed in the vertical direction.

Further, the vertical reinforcing bead 33a is connected to the horizontal reinforcing bead 21 on the lower end side, and the force applied to the inclined portion 30 from the vertical direction can be dispersed to the lateral protection portion 20 as well. As a result, the PCU 50 is protected even when an impact is received from the upper side of the second member 4 or the like as shown by the arrow b in FIG. Further, the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 can be defined in shape such as thickness and height in consideration of the balance of the magnitude of the impact applied to each of the vertical reinforcing bead 33 and the horizontal reinforcing bead 21. In the present embodiment, for example, the vertical reinforcing bead 33 is formed slightly lower than the height of the horizontal reinforcing bead 21. Similar to the side protection portion 20, the inclined portion 30 has a hole 22 for weight reduction formed between the plurality of vertical reinforcing beads 33.

As shown in FIGS. 4, 7 and 8, the protrusions 40 include the protrusions 40a formed on the upper end side of the inclined portion 30 and the protrusions 40b and 40c formed on both ends of the lateral protection portion 20 in the width direction. have. As shown in FIG. 4, the inclined portion 30 is set in an inclined direction in a direction in which the second member 4 and the inclined surface face each other. As a result, the impact received from the second member 4 can be received by the inclined surface of the inclined portion 30. The projecting portion 40a is formed so as to project from the upper end of the inclined portion 30 toward the PCU 50 on the front side. The protrusion 40a is made of a flat plate-shaped member so that it can be accessed from above. Further, the protruding portion 40a is opened with a hole for fastening for inserting a bolt, and the protruding portion 40a is fastened to the support bracket 51 bridged to the PCU 50 described later by the bolt. As a result, the protective member 10 is fastened to the PCU 50 via the support bracket 51 to form the protective structure 11. The protective structure 11 is formed by attaching the protective member 10 to the PCU 50. Further, a vertical reinforcing bead 23 is arranged along the inclined portion 30 on the rear side of the protruding portion 40a. Thereby, the impact applied to the inclined portion 30 can be dispersed through the vertical reinforcing bead 23.

As shown in FIGS. 2 to 4, the PCU 50 has a support bracket 51 bridged above the rear side. The support bracket 51 indirectly fastens the protective member 10 to the PCU 50, and also plays a role of dispersing the force due to the impact applied to the protective member 10. It also plays a role of suppressing the protective member 10 from resonating due to the vibration of the vehicle body and making noise.

The protrusion 40b is formed on one of the side surfaces of the side protection portion 20 so as to project toward the PCU 50. Like the protruding portion 40a, the protruding portion 40b is formed of a plate-shaped member having a flat tip portion, and has a hole for fastening. The protrusion 40b is fastened to the support bracket 51 with bolts or the like like the protrusion 40a.

The projecting portion 40c is formed so as to project toward the PCU 50 at the lower end of the side surface on one side of the side protection portion 20 and the vicinity of the upper end of the side surface on the other side of the side protection portion 20. The protruding portion 40c is arranged so that the tip portion thereof is bent in a plane with respect to the side surface of the lateral protection portion 20 and faces the flat portion of the PCU 50. It is preferable that one of the protruding portions 40c is provided at a position that is line-symmetric with the protruding portion 40b with respect to the center line in the width direction of the protective member 10.

The protruding portion 40c is arranged in a state of being separated from the side surface of the PCU 50, and can be brought into contact with and separated from the PCU 50. Further, the protruding portion 40c can disperse the force due to the impact by contacting the side surface of the PCU 50 when receiving the force due to the impact as shown by the arrow a in FIG. 4 and stretching the protrusion 40c against the PCU 50, for example. .. In this case, it is preferable that the lateral reinforcing bead 21 is formed between the protruding portion 40b and the protruding portion 40c arranged line-symmetrically. As a result, the force applied to the protruding portion 40b fastened to the support bracket 51 can be dispersed to the protruding portion 40c via the lateral reinforcing bead 21 and the vertical reinforcing bead 33.

The protective member 10 and the protective structure 11 of the present invention have the above-described configuration. Next, based on FIG. 4, the operation of the protective member 10 will be described, for example, in the case where the vehicle 1 collides with an obstacle or the like in front of the vehicle 1.

When the vehicle 1 collides with an obstacle or the like in front, the protective member 10 initially receives a force due to an impact from the front side (left side in the figure), but subsequently, due to an inertial force due to the rear-end collision, the protective member 10 is subjected to arrows a and b in the figure. It will receive the force from the rear side like. Along with this, the protective member 10 receives a force from the direction of the first member 3 or the second member 4, or the first member 3 or the second member 4 is directly damaged depending on the situation and interferes with the protective member 10. May be done. As described above, when the protective member 10 receives a force from, for example, the directions of the arrows a and b, the impact force is dispersed by the vertical reinforcing bead 33, the horizontal reinforcing bead 21, and the protruding portion 40, and the PCU 50 becomes Be protected. Further, when the protective member 10 is fastened to the PCU 50 via the support bracket 51, the impact force is dispersed and relaxed also in the support bracket 51. The above is the embodiment of the present invention, but the present invention is not limited to the above-described embodiment, and appropriate modifications can be made within the scope of the invention.

In the above-described embodiment, the drive unit accommodating chamber 2 is arranged in front of the vehicle 1, but the drive unit accommodating chamber 2 is arranged in various places depending on the form of the vehicle 1. Is possible. For example, the drive unit accommodating chamber 2 may be a central portion or a rear portion of the vehicle 1. Further, the shape of the PCU 50 is not limited to a rectangular shape, and various shapes such as a convex shape obtained by combining a plurality of rectangular shapes in a plan view can be adopted. Further, as the side protection portion 20 and the inclined portion 30, those having an appropriate size and shape can be adopted according to the size and shape of the PCU 50. Further, the material of the protective member 10 may be not only metal but also a resin such as CFRP that can secure the strength.

Further, 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 in a direction susceptible to impact. For example, if the PCU 50 is susceptible to an impact from the width direction (lateral direction), the protective member 10 may be provided on the side surface of the PCU 50 in the width direction. Further, if the space of the drive unit accommodating chamber 2 allows, a plurality of protective members 10 may be provided.

The inclination angle of the inclined portion 30 can be set to various angles so as to be along a direction in which an impact may be received from the vehicle body. Further, the inclined portion 30 and the side protection portion 20 may be connected in an arc shape. In the above-described embodiment, the inclined portion 30 and the side protection portion 20 are integrally formed, but each may be composed of divided members. Further, various numbers of the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 can be adopted according to the size of the side protection portion 20 and the inclined portion 30. Further, as the vertical reinforcing bead 33 and the horizontal reinforcing bead 21, various forms can be adopted according to the assumed magnitude of the impact. For example, the height and thickness of the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 may be different from each other. As a result, the balance of the force applied to the protective member 10 in the dispersion direction can be changed. Further, in the above-described embodiment, the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 are integrally formed with the side protection portion 20 and the inclined portion 30, but are indirectly provided. You may. Further, the direction in which the axial direction of the vertical reinforcing bead 33 and the horizontal reinforcing bead 21 intersect is not limited to the orthogonal direction, but various directions can be adopted according to the direction in which the strength of the protective member 10 is desired to be increased. Is. Further, in the above-described embodiment, the vertical reinforcing bead 33 is formed on the axis of the protruding portion 40c, but the present invention is not limited to this, and the position is appropriate in the direction intersecting the lateral reinforcing bead 21. It is possible to form in.

In the above-described embodiment, the protruding portion 40 is formed so as to be in contact with the PCU 50, but the distance between the PCU 50 and the protruding portion 40 may be an impact that may be received by the protective member 10 or the protective member 10. It can be set at an appropriate interval according to the rigidity. Further, in the above-described embodiment, the protruding portion 40 is arranged in a state of being separated from the PCU 50 in the initial state, but is in contact with the PCU 50 from the beginning according to the rigidity required for the protective member 10. There may be. Further, the contact portion of the PCU 50 with which the protrusion 40 abuts can be set at an arbitrary position, but it is preferable to make the contact portion flat in order to disperse the received force. Further, the protruding portion 40 that comes into contact with the PCU 50 can have an arbitrary shape according to the shape of the contact surface of the PCU 50 that comes into contact with the PCU 50, but is a flat surface having a certain area so that the force is dispersed. It is good to make it.

In the above-described embodiment, the protrusion 40 and the PCU 50 are fastened from the upper side of the PCU 50, but the direction in which the protrusion 40 and the PCU 50 are fastened makes it easy to attach the protective member 10 to the PCU 50. It is possible to adopt various directions as long as it is in any direction. For example, if it is easy to attach from the lateral direction, it may be fastened from the lateral direction. Further, the fastening is not limited to bolts, and various fastening means can be adopted.

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 directions can be adopted as long as the direction is easy to attach to. For example, if it is easy to attach from the lateral direction, it may be fastened from the lateral direction. Further, the shape of the support bracket 51 can be any shape according to the shape of the PCU 50. Further, a plurality of support brackets 51 may be provided. Further, the fastening is not limited to bolts, and various fastening means can be adopted.

In the above-described embodiment, the punch holes 22 provided in either one or both of the side protection portion 20 and the inclined portion 30 are provided on the axial extension of the vertical reinforcing bead 33, but the strength is ensured. If possible, punch holes 22 can be formed at various positions. The shape and size of the punched hole 22 can be arbitrary depending on the required rigidity.

In the above-described embodiment, the first member 3 is a dash panel and the second member 4 is a cowl for accommodating a wiper or the like, but various members are adopted for the first member 3 and the second member 4. 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 is provided as long as the protective member 10 is attached to the PCU 50. , Various means can be adopted. For example, the protrusion 40 may be directly fastened to the PCU 50.

The protective member of the present invention can be used as a protective member for a PCU mounted on a hybrid vehicle, an electric vehicle, or the like.

1 Vehicle 2 Drive unit accommodation room 3 Dash panel (first member)
4 cowl (second member)
10 Protective member 11 Protective structure 20 Lateral protection part 21 Horizontal reinforcement bead 22 Drilling hole 30 Inclined part 33 Vertical reinforcement bead 33a Vertical reinforcement bead 33b Vertical reinforcement bead 33c Vertical reinforcement bead 40 Protrusion 40a Protrusion 40b Part 40c Protruding part 50 PCU (power control unit)
51 Support bracket

(1) The protective member of the present invention provided to solve the above-mentioned problems is a protective member of a power control unit arranged inside a drive unit accommodating chamber formed in a vehicle, and the protective member is a protective member. A side protection portion arranged so as to face the side surface of the power control unit, an inclined portion connected to the upper end of the side protection portion in an inclined state, and an inclined portion protruding from the inclined portion toward the front side to obtain the power. and a one or more protrusions fastened to the control unit side, wherein the inclined portion, at the rear side of the projecting portion has a longitudinal reinforcing bead disposed along the inclined portion, the longitudinal The directional reinforcing bead is arranged on the rear side of at least one of the protrusions, and the lateral protection portion has a lateral reinforcing bead arranged in a direction intersecting the axial direction of the vertical reinforcing bead. It is characterized by that.

As shown in FIGS. 4, 7 and 8, the protrusions 40 include the protrusions 40a formed on the upper end side of the inclined portion 30 and the protrusions 40b and 40c formed on both ends of the lateral protection portion 20 in the width direction. have. As shown in FIG. 4, the inclined portion 30 is set in an inclined direction in a direction in which the second member 4 and the inclined surface face each other. As a result, the impact received from the second member 4 can be received by the inclined surface of the inclined portion 30. The projecting portion 40a is formed so as to project from the upper end of the inclined portion 30 toward the PCU 50 on the front side. The protrusion 40a is made of a flat plate-shaped member so that it can be accessed from above. Further, the protrusion 40a is opened with a fastening hole for inserting a bolt, and the protrusion 40a is fastened to the support bracket 51 bridged to the PCU 50 described later by the bolt. As a result, the protective member 10 is fastened to the PCU 50 via the support bracket 51 to form the protective structure 11. The protective structure 11 is formed by attaching the protective member 10 to the PCU 50. Further, a vertical reinforcing bead 33 is arranged along the inclined portion 30 on the rear side of the protruding portion 40a. Thereby, the impact applied to the inclined portion 30 can be dispersed through the vertical reinforcing bead 33.

Claims (2)

It is a protective member of the power control unit arranged inside the drive unit accommodation chamber formed in the vehicle.
The protective member is
A side protection unit arranged to face the side surface of the power control unit,
An inclined portion connected to the upper end of the lateral protection portion in an inclined state,
It has one or more protrusions that project from the inclined portion toward the front side and are fastened to the power control unit side.
The sloping portion has a longitudinal reinforcing bead arranged along the sloping portion on the rear side of the protruding portion.
At least one of the protrusions has a longitudinal reinforcing bead that is located rearward.
A protective member characterized in that the lateral protection portion has a lateral reinforcement bead arranged in a direction intersecting the axial direction of the vertical reinforcement bead. The protective member according to claim 1, wherein the lateral protective portion is formed by forming a plurality of lateral reinforcing beads at intervals, and a vertical reinforcing bead is formed between the lateral reinforcing beads. ..

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