JP2024017329A - Transaxle case loading structure - Google Patents

Abstract

To restrain the breakage of a transaxle case upon the collision of a vehicle.SOLUTION: A transaxle case loading structure includes: a transaxle case; a protective member arranged at the downward part of the transaxle case and storing a high-voltage component; and a suspension member provided under the transaxle case. The suspension member has a bent part under the protective member. A front end part of the suspension member is positioned forward and upward of the bent part and the bent part and the protective member are arranged to face each other.SELECTED DRAWING: Figure 1

Description

The present invention relates to a transaxle case mounting structure.

Patent Document 1 listed below discloses a vehicle in which a suspension member is disposed below a transaxle case.

Japanese Patent Application Publication No. 2017-007549

In the event of a vehicle collision, it is desirable to reduce the impact on occupants by releasing the collision energy to the transaxle case. However, in the technique of Patent Document 1 mentioned below, there is no mention of the shape of the suspension member, and there is room for improvement in the shape in consideration of the impact mitigation structure.

In order to solve the above-mentioned problems, a transaxle case mounting structure according to one embodiment includes a transaxle case, a protection member disposed at the lower part of the transaxle case and housing high voltage components, and a protection member located below the transaxle case. A transaxle case mounting structure comprising a suspension member provided at The bent portion and the protection member are arranged to face each other.

According to the transaxle case mounting structure according to one embodiment, it is possible to suppress damage to the transaxle case during a vehicle collision.

A diagram showing a partial configuration of a front compartment of a vehicle (at the time of non-collision) according to an embodiment A diagram showing a partial configuration of a front compartment (at the time of an offset collision) of a vehicle 10 according to an embodiment AA sectional view of the front compartment shown in Figure 2

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

(Internal configuration of front section 10A of vehicle 10)
FIG. 1 is a diagram showing a partial configuration of a front portion 10A (at the time of non-collision) of a vehicle 10 according to an embodiment.

A vehicle 10 shown in FIG. 1 is a vehicle that includes a motor generator that generates driving force for running, a battery that supplies power for driving the motor generator, a PCU that controls power for driving the motor generator, and the like. .

Examples of the vehicle 10 include a HEV (Hybrid Electric Vehicle), a PHEV (Plug-in Hybrid Electric Vehicle), an FCEV (Fuel Cell Electric Vehicle), and a BEV (Battery Electric Vehicle).

Note that in this embodiment, the direction corresponding to the height direction of the vehicle 10 is defined as the Z-axis direction. Further, the direction corresponding to the width direction of the vehicle 10 is defined as the Y-axis direction. Further, the direction corresponding to the longitudinal direction of the vehicle 10 is defined as the X-axis direction. However, the Z-axis positive direction is upward, the Y-axis positive direction is rightward, and the X-axis positive direction is forward.

As shown in FIG. 1, the vehicle 10 includes a transaxle case 11, an aluminum case 12, a suspension member 13, and a side member 15 in a front portion 10A.

The transaxle case 11 is a metal member that houses a motor generator that generates driving force for driving the vehicle 10.

The side member 15 is a metal frame that is provided outside (Y-axis negative side) of the transaxle case 11 in the left-right direction (Y-axis direction) and extends in the front-rear direction (X-axis direction). It is a member.

The aluminum case 12 is an example of a "protective member". The aluminum case 12 is an aluminum member that houses the high voltage component 12A (for example, an electric oil pump) and protects the high voltage component 12A. The aluminum case 12 is arranged at the lower part (the part on the Z-axis negative side) of the left side surface (the Y-axis negative side side) of the transaxle case 11. Note that the aluminum case 12 is arranged in close contact with the transaxle case 11.

The suspension member 13 is a metal frame member that is provided below the transaxle case 11 (in the negative Z-axis direction) and supports the suspension, the transaxle case 11, and the like. The suspension member 13 has a bent portion 13A at a position below the aluminum case 12 (in the negative Z-axis direction). The front end (the end on the X-axis positive side) of the suspension member 13 is located forward (in the X-axis positive direction) and above (in the Z-axis positive direction) of the bent portion 13A. The bent portion 13A is arranged to face the aluminum case 12.

(At the time of offset collision of vehicle 10)
FIG. 2 is a diagram showing a partial configuration of the front section 10A (at the time of an offset collision) of the vehicle 10 according to one embodiment. FIG. 3 is a sectional view taken along the line AA of the front portion 10A (the portion surrounded by a dotted circle) shown in FIG.

As shown in FIG. 2, at the time of an offset collision from the front of the vehicle 10 (in the positive direction of the X-axis), the suspension member 13 is bent at the bending portion 13A due to the collision energy applied to the suspension member 13. Then, the bent portion 13A comes into contact with the aluminum case 12 located above (Z-axis positive direction) and to the right (Y-axis positive direction) of the bent portion 13A.

As a result, as shown in FIGS. 2 and 3, the aluminum case 12 is crushed by the bent portion 13A, and the collision energy applied from the suspension member 13 to the transaxle case 11 can be absorbed. Damage can be suppressed.

Further, since the collision energy from the suspension member 13 can be released to the transaxle case 11 via the aluminum case 12, the impact applied to the occupants of the vehicle 10 can be reduced.

Furthermore, the part of the transaxle case 11 where the aluminum case 12 is arranged has increased rigidity due to the aluminum case 12 being arranged in close contact with each other. Damage due to applied collision energy is less likely to occur.

Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to these embodiments, and various modifications and variations can be made within the scope of the gist of the present invention as described in the claims. Changes are possible.

10 Vehicle 10A Front part 11 Transaxle case 12 Aluminum case (protective member)
12A High voltage component 13 Suspension member 13A Bent part 15 Side member

Claims (1)

transaxle case,
a protection member disposed at a lower portion of the transaxle case and housing high voltage components;
A suspension member provided below the transaxle case, the transaxle case mounting structure comprising:
The suspension member is
having a bent portion at a position below the protective member;
The front end of the suspension member is
located in front and above the bending part,
The transaxle case mounting structure, wherein the bent portion and the protection member are arranged to face each other.

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