CN103419844A

CN103419844A - Electric vehicle with intelligent power unit

Info

Publication number: CN103419844A
Application number: CN2013101516569A
Authority: CN
Inventors: 杉崎彻哉; 久保田真也
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2012-05-23
Filing date: 2013-04-27
Publication date: 2013-12-04
Anticipated expiration: 2033-04-27
Also published as: JP5997933B2; CN103419844B; JP2013244764A

Abstract

The invention provides an electric vehicle which can suppress increase of volume*weight of a beam and IPU (intelligent power unit). The vehicle (V) provided by the invention comprises a first beam (11) extending along a vehicle width direction of the vehicle (V), a second beam (12) arranged behind the first beam (11) and the IPU (20) arranged below a seat (1) of the vehicle (V) and between the first beam (11) and the second beam (12). The vehicle also comprises a third beam (13) disposed above the IPU (20) and used for fixing the seat (1). At least a part of the IPU (20) is arranged in a manner of being contained in an area surrounding the first beam (11), the second beam (12) and the third beam (13).

Description

The elec. vehicle that possesses the high-voltage electrical apparatus installing component

Technical field

The present invention relates to possess the high-voltage electrical apparatus installing component under floor (also referred to as intelligent power unit (Intelligent Power Unit).Below, there is the situation that is called " IPU ".) elec. vehicle.

Background technology

In vehicle, in order to protect the passenger, in order to avoid be subject to the impact of side collision, exist the under-seat of taking one's seat the passenger to be provided with the situation of a plurality of crossbeams.

In addition, according to following patent documentation 1, disclose in order effectively to utilize wasted space, and between the crossbeam of this under-seat the structure of configuration of IP U.

It should be noted that, IPU be by electric subsidiary engine member storages such as the battery module to the electrical motor supply capability, blowing engine and DC-DC convs in housing and the integrated parts that form.

[formerly technical literature]

[patent documentation]

[patent documentation 1] TOHKEMY 2009-29159 communique

[summary of invention]

[problem that invention will solve]

Yet; as prior art in the situation that configuration of IP U between the crossbeam of under-seat; from protecting IPU reliably, in order to avoid be subject to the essentiality of the impact of side collision, the sectional area of the crossbeam of configuration before and after IPU is increased, thereby the volume weight of crossbeam is increased.

And, according to prior art, the load of the weight that is equivalent to seat and takes one's seat passenger is on the seat arranged being disposed on the IPU of under-seat effect.Therefore, for the load from top, need to improve the rigidity intensity of IPU, thereby also make the volume weight of IPU increase.

Summary of the invention

Therefore, the present invention proposes in view of above-mentioned background, and its problem is to provide a kind of elec. vehicle of increase of the volume weight that suppresses crossbeam and IPU.

[for solving the means of problem]

In order to solve above-mentioned problem, the elec. vehicle of the present application possesses: at the first crossbeam of the fore-and-aft direction front side of elec. vehicle configuration, at the second cross beam of the rear of described first crossbeam configuration, at under-seat and the IPU that configures between described first crossbeam and described second cross beam, described elec. vehicle is characterised in that, described elec. vehicle also possesses above described IPU the 3rd crossbeam that configuration fixes described seat, and at least a portion of described IPU is present in the zone surrounded by described first crossbeam, described second cross beam and described the 3rd crossbeam.

According to the present application, due to except first crossbeam and second cross beam, also possesses the 3rd crossbeam, so can increase the total sectional area of crossbeam.Therefore, rigidity, the intensity of the vehicle body on the overall width direction of IPU are improved, thereby can protect reliably IPU, in order to avoid be subject to the impact of side collision.

Especially can be protected more reliably a part that is present in the IPU in the zone surrounded by first crossbeam, second cross beam and the 3rd crossbeam, in order to avoid be subject to the impact of side collision.

Therefore in addition, the 3rd crossbeam in the present application is configured in under-seat, compares with second cross beam with first crossbeam, compares with the existing crossbeam of front and back configuration at IPU, more approaches the central portion setting of IPU.

And the 3rd crossbeam arranged according to the central portion that approaches IPU, compare with the existing crossbeam of front and back configuration at IPU, can improve with little sectional area rigidity, the intensity of the vehicle body on the overall width direction of IPU.

Therefore, according to the present application, the situation that is increased in like that the sectional area of the crossbeam of configuration before and after IPU with prior art is compared, and can reduce the recruitment of sectional area, suppresses the increase of the volume weight of crossbeam.

In addition, according to the present application, due to the 3rd beam supporting seat, therefore can the load of reducing effect on IPU.Therefore, the desired rigidity intensity of IPU also reduces, thereby can suppress the increase of the volume weight of IPU.

In addition, according to the present application, the recruitment of the total sectional area of crossbeam reduces, so the receiving space of IPU increases, thus raising that can implementation space efficiency.

In addition, the electric subsidiary engine parts that preferred described IPU possesses battery module and configures at the place ahead or the rear of described battery module, and be formed with the space that can configure described first crossbeam or described second cross beam below described electric subsidiary engine parts.

According to above-mentioned structure, for example, can below the electric subsidiary engine parts such as DC-DC conv or blowing engine, configure first crossbeam or second cross beam.

Therefore, with the existing crossbeam of the place ahead at IPU or rear configuration, compare, first crossbeam or second cross beam can be approached to the battery module setting, thereby can protect the reliability of battery module to improve.

In addition, preferred described IPU has the battery frame that extends to support described battery module along the overall width direction, and described battery frame is configured in the below of described the 3rd crossbeam.

According to above-mentioned structure, the section modulus of the 3rd crossbeam and the existing part of battery frame rises, thereby the rigidity intensity of vehicle body improves, and therefore can protect more reliably IPU, in order to avoid be subject to the impact of side collision.

[invention effect]

Above, according to the present invention, can provide the elec. vehicle of the increase of the volume weight that can suppress crossbeam and IPU.

The accompanying drawing explanation

Fig. 1 is the block diagram of the state after elec. vehicle is extracted the part on the seat be configured in the car chamber and floor out observed from upper left side.

Fig. 2 is that the A-A of Fig. 1 is to looking cutaway view.

Fig. 3 is that the B-B of Fig. 2 is to looking cutaway view.

Fig. 4 means the block diagram of the state from elec. vehicle is extracted frame member, IPU and IPU cover out.

Fig. 5 is the block diagram of IPU.

Fig. 6 is the exploded perspective view of IPU.

Fig. 7 is that the D-D of Fig. 5 is to looking cutaway view.

[nomenclature]

1 seat

4 IPU covers

11 first crossbeams

12 second cross beams

13 the 3rd crossbeams

16 seat supporting members

20 IPU (high-voltage electrical apparatus installing component)

24 Sirocco fans (blowing engine)

25 electric subsidiary engine parts

27 battery modules

28 (28a～28c) battery frame

31 DC-DC convs

44 first intermediate conduit

45 second intermediate conduit

The 47a ascending part

The F floor

The specific embodiment

Then, suitably with reference to accompanying drawing, the vehicle V of embodiments of the present invention is described.

The vehicle V of embodiment is that the electric power by supplying with from IPU carrys out driving motor, and the elec. vehicle that can travel by the propulsive effort of this electrical motor.It should be noted that, the elec. vehicle in the present invention, except only take the vehicle that electrical motor is propulsion source, also comprises the motor vehicle driven by mixed power that possesses electrical motor and these two propulsions source of combustion engine.

As shown in FIG. 1 to 3, the vehicle V of embodiment possesses: be provided with the floor F of foremost seat 1, mainly be configured in frame member 2 under the F of floor, below seat 1 and the IPU20 configured under the F of floor (especially with reference to Fig. 3) and IPU protection housing 8 (especially with reference to Fig. 2).

As shown in Figure 1 and Figure 2, floor F has the floor carpet (not shown) at the upper fixing roughly tabular base plate 3 of the described later a pair of floor frame 14,14 (with reference to Fig. 2, Fig. 3) of frame member 2, the IPU cover 4 arranged on this base plate 3, the in-built member pasted at the upper surface of base plate 3 and IPU cover 4.

As shown in Figure 3, the position with corresponding below seat 1 on base plate 3 is formed with peristome 3a.Therefore, the upper side of IPU20 can be surpassed to base plate 3 and be configured in the space under seat 1.

IPU cover 4 is the cover members that bloat upward and have in lower face side inner space.In addition, IPU cover 4 is fixed on base plate 3 in the mode of the peristome 3a of covering base plate 3, covers the top of IPU20.

And, as shown in Figure 1, be formed with the hole 4a that connects along the vertical direction and pass through for the sucking hole 41b of the upstream line described later 41 of IPU20 in the left and right sides of IPU cover 4.

As shown in Figure 4, frame member 2 possesses: the lower-

edge beam

10,10 of the pair of right and left of extending along fore-and-aft direction; The first crossbeam 11, second cross beam 12, the 3rd crossbeam 13 that along left and right directions, extend; The

floor frame

14,14 of the pair of right and left that is configured in the interior side of lower-

edge beam

10,10 and extends along fore-and-aft direction; From lower-edge beam 10, the 10 a pair of

subframe

15,15 that inwardly extend and links with

floor frame

14,14 side.

As shown in Figure 3, Figure 4, the first crossbeam 11 of present embodiment is fixed between a pair of lower-

edge beam

10,10 and is configured under the F of floor.On the other hand, second cross beam 12 is fixed between a pair of

floor frame

14,14 in the mode at the rear in first crossbeam 11 and is configured under the F of floor.It should be noted that, the sectional area of first crossbeam 11 and second cross beam 12 forms in the mode with common sectional area (sectional area while not increasing).

In addition, as shown in Figure 3, first crossbeam 11 is vacated interval and configures with second cross beam 12 on fore-and-aft direction, is formed with the space of the toe lateral that can accommodate IPU20 between first crossbeam 11 and second cross beam 12.

And second cross beam 12 is arranged on roughly the latter half of a pair of

floor frame

14,14, be formed with the space of the rear portion side that can accommodate IPU20 above second cross beam 12.

And, with the space of the top of the space between first crossbeam 11 and second cross beam 12 and second cross beam 12 be positioned at the mode of seat 1 below, the mode of below that becomes the peristome 3a of base plate 3 arranges first crossbeam 11 and second cross beam 12.The bottom of the IPU20 that therefore, the mode of the peristome 3a with across base plate 3 can be configured is housed under the F of floor.

As shown in Figure 1 and Figure 2, the 3rd crossbeam 13 is arranged on the upper surface crossbeam that direction is extended to the left and right that covers 4 on IPU cover 4 and along IPU.

In addition, the two ends of the 3rd crossbeam 13 extend on base plate 3, and fix with the not shown bolt that floor frame 14 screws togather by connecting base plate 3.

And, the 3rd crossbeam 13 below the central portion of seat 1, be to configure above the central portion of IPU20, with the crossbeam of the configuration of the front and back at IPU20 illustrated in prior art, compare, more approach the central portion setting of IPU20.It should be noted that, for the sectional area of the 3rd crossbeam 13, in rear narration.

In addition, be fixed with the orbit portion 1a of the inboard shank of seat 1 in the upper surface side of the 3rd crossbeam 13, thereby the 3rd crossbeam 13 supportings are arranged on the seat 1 on the F of floor.

It should be noted that, in the present embodiment, as the member for supported seat 1, except the 3rd crossbeam 13, also be provided with the

seat supporting member

16,16 forwards extended along IPU cover 4 from the front surface of the 3rd crossbeam 13.According to this

seat supporting member

16,16, more stably supported seat 1.

It should be noted that, the 3rd crossbeam 13 arranged on IPU cover 4 and

seat supporting member

16,16, except the part of orbit portion 1a that seat 1 is set, are all covered by floor carpet (not shown).

Then, IPU20 is described.As shown in Figure 5, IPU20 possesses IPU housing 21, battery pack 26, electric subsidiary engine parts 25, pipeline 40.

In addition, as electric subsidiary engine parts 25, possess junction board 30, DC-DC conv 31, Sirocco fan 24.

It should be noted that, in the IPU20 of present embodiment, as electric subsidiary engine parts 25, possess junction board 30, DC-DC conv 31, Sirocco fan 24, but the present invention is not limited to this, for example, can also further possess the inverter for driving motor (not shown).

IPU housing 2 is the frameworks at the shallow end of upper opening.In addition, as shown in Figure 3, the rear portion side diapire of IPU housing 21 after bottom 21b with than toe lateral diapire before the bottom 21a mode that becomes top form.Thus, the receiving space of the rear portion side of IPU housing 21 diminishes on short transverse, on the other hand, forms the space that can configure second cross beam 12 below the rear portion side of IPU20.

As shown in Figure 5, be provided with a plurality of housing fixed plates 22 that extend to extroversion in the upper end of the left and right sides of IPU housing 21.It should be noted that, in the IPU of present embodiment housing 21, housing fixed plate 22 is provided with three on fore-and-aft direction, is called in turn the first fixed plate 22a, the second fixed plate 22b, the 3rd fixed plate 22c towards rear from the place ahead.

In the situation that by IPU20 from above insert the peristome 3a of base plate 3, this housing fixed plate 22 is configured in the top of floor frame 14 across base plate 3.

And this housing fixed plate 22 is undertaken fastening by the bolt (not shown) that connects base plate 3 and screw togather with floor frame 14, thus IPU20 is fixed on the state dangled in the peristome 3a of base plate 3 (with reference to Fig. 3).

In addition, as shown in Figure 5, be provided with the battery fixed plate 23 extended to the interior side of IPU housing 21 above the first fixed plate 22a of housing fixed plate 22 and the second fixed plate 22b.

As shown in Figure 6, battery pack 26 possesses a plurality of battery modules 27 of arranging along left and right directions, the battery frame 28 that the plurality of battery module 27 is supported.

Battery module 27 is compared with other parts that form electric subsidiary engine parts 25, and the length of short transverse (above-below direction) is long.

In battery module 27, a plurality of battery cell 27a and a plurality of support 27b arrange on fore-and-aft direction.It should be noted that, a plurality of battery cell 27a and a plurality of support 27b configure in the mode replaced on fore-and-aft direction.

In addition, the arrangement consisted of a plurality of battery cell 27a and a plurality of support 27b is by forwardly with a pair of end plate (not shown) clamping of rear configuration and integrated.It should be noted that, be formed with for the bolt fixed orifice fixing to battery frame 28 on end plate (not shown).

And, be formed with gap between battery cell 27a and support 27b, thereby can make cooling air flow into.Therefore, in the situation that will for the cooling air of cool batteries monomer 27a from direction battery module 27 send into, from the below of battery module 27, cooling air is discharged to (with reference to the arrow H shown in Fig. 3).

As shown in Figure 6, battery frame 28 possess front square bearer 28a and rear square bearer 28b at the substantially planar of the front and back of battery module 27 configuration, there are a plurality of vent 29b and be configured in battery module 27 below the lower square bearer 28c of substantially planar.It should be noted that, by the lower end of front square bearer 28a and rear square bearer 28b by screw fastening the front and back end in lower square bearer 28c, thus that battery frame 28 is integrated.

In addition, be formed with the not shown through hole connected at fore-and-aft direction on framework 28a and rear square bearer 28b forwardly.And, connecting through hole (not shown) and the bolt fixed orifice (not shown) of the end plate (not shown) that arranges with front and back end at battery module 27 screws togather by the bolt by not shown, 28 pairs of battery modules 27 of battery frame are supported thus.

In addition, the top at the two ends, left and right of framework 28a and rear square bearer 28b is provided with the sheet 32 that is fixed forwardly, and direction is export-oriented to the left and right extends and be fixed on the battery fixed plate 23 of IPU housing 21 for this sheet 32 that is fixed.

And, be fixed on by the sheet 32 that will be fixed on the battery fixed plate 23 of IPU housing 21, thereby battery module 27 be arranged on IPU housing 21 with the state that overhangs the toe lateral in IPU housing 21.

In addition, as shown in Figure 3, in the situation that IPU20 is fixed in to floor F, dispose first crossbeam 11 and second cross beam 12 on the fore-and-aft direction of the battery module 27 of the toe lateral setting of IPU20, dispose up the 3rd crossbeam 13, thereby battery module 27 is positioned at the zone surrounded by first crossbeam 11, second cross beam 12 and the 3rd crossbeam 13.

And, in the situation that IPU20 is fixed in to floor F, the rear square bearer 28b of battery frame 28 be configured in the 3rd crossbeam 13 under.

As shown in Figure 5, junction board 30 is the galvanic parts for the Motorized drive unit to not shown or DC-DC conv 31 dispensing battery modules 27, is fixed on the left side, rear portion of IPU housing 21.

DC-DC conv 31 is parts of the galvanic voltage step-down that will supply with from battery module 27, is configured in the right side, rear portion of IPU housing 21.

It should be noted that, as shown in Figure 7, DC-DC conv 31 is contained in forwardly and is formed with the rectangular-shaped DC-DC of

vent

31a, 31b with in housing 31c with rear.In addition, be provided with the radiating gill 31d that promotes heat radiation on DC-DC conv 31.

Sirocco fan 24 is blowing engine, and it has impeller cylindraceous, from the axial side's air amount of the rotation of impeller, and air is discharged to the tangential direction of impeller.

As shown in Fig. 3, Fig. 6, the Sirocco fan 24 of present embodiment is configured in the central portion of the rear portion side of IPU housing 21, and with the air suctiton inlet of air amount downward, and the mode of ejiction opening towards right side of ejection air arranges.

It should be noted that, Sirocco fan 24 according to present embodiment, the direction of the air of suction conversion 90 degree are sprayed, therefore can reduce the number of times of the direction of cooling air at right angles being changed by the first intermediate conduit 44 described later or the second intermediate conduit 45, the loss of pressure of cooling air is reduced.

In addition, in the present embodiment, along the left and right directions alignment arrangements, therefore with stacked situation on above-below direction, compare the height in the space that can suppress to occupy due to the Sirocco fan 24, junction board 30 and the DC-DC conv 31 that form electric subsidiary engine parts 25.Therefore, receiving space that can be little on short transverse is that the rear portion side of IPU housing 21 is accommodated Sirocco fan 24, junction board 30 and DC-DC conv 31.

It should be noted that, become top because the rear bottom 21b of IPU housing 21 compares with front bottom 21a, therefore at the Sirocco fan 24 of the rear portion side configuration of IPU housing 21, junction board 30, DC-DC conv 31 with at the battery module 27 of the toe lateral configuration of IPU housing 21, become roughly the same height.

And, in the situation that IPU20 is fixed in to floor F, as shown in Figure 3, in the rear portion side of IPU housing 21 along Sirocco fan 24, junction board 30 and the DC-DC conv 31 of left and right directions alignment arrangements respectively with respect to second cross beam 12 overlay configuration.

As shown in Figure 6, pipeline 40 possesses: the air of car chamber C is drawn into to the upstream line 41 in IPU20, the first intermediate conduit 44 in IPU20, cooling air guided and the second intermediate conduit 45 as cooling air, sprays the ejection pipeline 43 of cooling air in IPU20 to IPU20.

Upstream line 41 is extend along left and right directions roughly tabular and vacate interval and the cover member of clad battery module 27.In addition, be formed with a plurality of extension 41a that direction is extended forwards, backwards in the end, front and back of upstream line 41.And, a plurality of extension 41a are fixed on to the upper end side of battery frame 28, thus the top (with reference to Fig. 3) of upstream line 41 clad battery modules 27.

And both end sides is formed with sucking

hole

41b, 41b in the left and right of upstream line 41, this sucking

hole

41b, 41b are outstanding upward in the mode of covering 4 hole 4b (with reference to Fig. 1) by IPU, thus air that can inhalation vehicle chamber C.

As shown in the arrow G of Fig. 2, this sucking

hole

41b, 41b form in the mode that the air of the car chamber C of suction can be sent into to the battery module 27 of the below that is configured in upstream line 41.

As shown in Fig. 3, Fig. 6, the first intermediate conduit 44 guides to Sirocco fan 24 for the cooling air that will flow out from the below of battery module 27, possesses the bottom surface pipeline 46 of the below that is configured in battery module 27, the up-hill line 47 extended to the below of Sirocco fan 24 from the rear portion of bottom surface pipeline 46.

Bottom surface pipeline 46 is the members at the substantially planar of the front bottom 21a configuration of IPU housing 21.In addition, the drain tank 46b that is formed with under central portion is overlooked the central groove 46a of shape in the form of a substantially rectangular and rearward extends from this central groove 46a at the upper surface of bottom surface pipeline 46.Therefore, as shown in the arrow H of Fig. 3, the wind direction rear travel direction conversion flowed into to the central groove 46a of bottom surface pipeline 46 by battery module 27, and flow out to drain tank 46b.It should be noted that, accompany containment member and sealed between bottom surface pipeline 46 and lower square bearer 28c.

In addition, in the situation that the surface of the battery cell 27a of battery module 27 produces dew, dew falls because of deadweight, thereby dew accumulates in the central groove 46a and drain tank 46b of bottom surface pipeline 46.

Up-hill line 47, for the top from drain tank 46b extends to the member of tubular of the below of Sirocco fan 24, makes the cooling air mobile towards rear travel direction conversion upward.

In addition, on the rear wall of up-hill line 47, be formed with the shape of the diapire along IPU housing 21, along the mode of the shape of second cross beam 12 along with towards rear and upward up the ascending part 47a tilted.

According to this ascending part 47a, can prevent from accumulating in the situation that the dew in bottom surface pipeline 46 moves to Sirocco fan 24 these sides, therefore can reduce the misgivings that Sirocco fan 24 sucks dews.

In addition, according to ascending part 47a, can be by cooling air along ascending part 47a guiding, that is, can with along crossbeam upward up mode guide cooling air, thereby cooling air can not imported to with not being detained to the sucking hole of Sirocco fan 24.

As shown in Figure 6, Figure 7, the second intermediate conduit 45 is the members to the tubular of DC-DC conv 31 guiding by the cooling air of the ejection of the ejiction opening from Sirocco fan 24, its discharge orifice from Sirocco fan 24 extends to the right, and links with the vent 31a of housing 31c with the DC-DC that accommodates DC-DC conv 31.

Thus, as shown in the arrow I of Fig. 7, the cooling air of sending from Sirocco fan 24 is by the second intermediate conduit 45 guiding and enter into DC-DC with in housing 31c, by radiating gill 31d, carries out interchange of heat and DC-DC conv 31 is cooling.

As shown in Figure 7, ejection pipeline 43 is from DC-DC, with the vent 31b at the rear of housing 31c, rearward to extend and the member of the tubular of ejection cooling air to IPU housing 21.Thus, as shown in the arrow J of Fig. 7, make cooling air use in housing 31c and flow into to ejection pipeline 43 from DC-DC, and cooling air is discharged outside IPU20.

It should be noted that, connect to the circulating line (not shown) extended in the C of car chamber in the end side (rear side) of ejection pipeline 43, thereby make to circulate to car chamber C from the cooling air of ejection pipeline 43 ejections.

As shown in Figure 2, Figure 4 shows, IPU protection housing 8 is to be fixed on the lower side that covers IPU20 on first crossbeam 11 and second cross beam 12, for the member that prevents that stone, road surface etc. and IPU20 from colliding.

Above, the structure of the vehicle V of embodiment is illustrated, but, in the vehicle V of embodiment, except first crossbeam 11 and second cross beam 12, also possesses the 3rd crossbeam 13, so the total sectional area of crossbeam increases.Thereby, according to the vehicle V of embodiment, the rigidity of the vehicle body on the overall width direction of IPU20, intensity improve, thereby can protect reliably IPU20, in order to avoid be subject to the impact of side collision.

In addition, according to the vehicle V of embodiment, by first crossbeam 11～the 3rd crossbeam 13, surrounding and protected in order to avoid be subject to the high area configurations battery module 27 of reliability of side collision impact.Therefore, can protect more reliably special battery (not shown) of wishing the battery module 27 of realization protection in IPU20.

In addition, according to the vehicle V of embodiment, the second cross beam 12 configured below the rear portion side of IPU20 is compared with the crossbeam that was configured in like that the rear of IPU20 in the past, is positioned at front side and approaches battery module 27 setting.Therefore, with the situation that configures like that crossbeam at the rear of IPU20 in the past, compared, can further improve the reliability that can protect battery module 27.

In addition, in the vehicle V of embodiment, the rear square bearer 28b of battery frame 28 be configured in the 3rd crossbeam 13 under, thereby the section modulus of the 3rd crossbeam 13 and the existing part of rear square bearer 28b rises.

Therefore, in vehicle V, the rigidity of the 3rd crossbeam 13 and the existing part of rear square bearer 28b, intensity rise, thereby can further improve the reliability that can protect IPU20, in order to avoid be subject to the impact of side collision.

In addition, because the 3rd crossbeam 13 of embodiment approaches the central portion setting of IPU20, therefore can set for than in prior art, illustrate be increased in the sectional area of the crossbeam of configuration before and after IPU20 the time the little sectional area of recruitment of sectional area.

Therefore, can reduce the recruitment of the total sectional area of the first crossbeam 11 of vehicle V～the 3rd crossbeam 13, thereby suppress the increase of the volume weight of crossbeam.

In addition, according to the vehicle V of embodiment, can suppress the increase of the sectional area of first crossbeam 11～the 3rd crossbeam 13, thereby the space that can utilize as the receiving space of IPU20 increases, and therefore can realize the raising of the space efficiency under the F of floor.

In addition, in the vehicle V of embodiment, above IPU20 the seat 1 of configuration by the 3rd crossbeam 13 supporting, thereby the load that can avoid the weight that is equivalent to seat 1 and sits in the passenger on seat 1 is in the situation of IPU20.Therefore, do not need to improve the rigidity of IPU20, thereby can suppress the increase of the volume weight of IPU20.

Above, embodiment is illustrated, but the present invention is not defined as the example illustrated in embodiment.

For example, for first crossbeam 11～the 3rd crossbeam 13 sectional area separately, can in the scope of the total sectional area that can protect IPU20, suitably change, the present invention is not implemented the example illustrated in mode and limits.

For example, can make the sectional area of the 3rd crossbeam 13 identical with the recruitment of the sectional area of existing crossbeam, on the other hand, make the sectional area of the common crossbeam of sectional area ratio of first crossbeam 11 and second cross beam 12 little.Also can reduce thus the recruitment of the total sectional area of crossbeam.

In addition, according to embodiment, under the F of floor, IPU20 to be to configure with the overlapping mode of second cross beam 12, but also can IPU20 and the overlapping mode of first crossbeam 11 configure.

Particularly, the direction of IPU20 that can be by changing embodiment, junction board 30, Sirocco fan 24 and the DC-DC conv 31 that makes to arrange along the overall width direction be positioned at IPU20 toe lateral and to configure with the overlapping mode of first crossbeam 11.Even be this structure, also can protect reliably IPU20, and can suppress the increase of the volume weight of crossbeam and IPU20.

In addition, battery module and electric subsidiary engine parts also can be along overall width direction row arrangement.

Claims

1. an elec. vehicle, it possesses: at the first crossbeam of the fore-and-aft direction front side of elec. vehicle configuration, at the second cross beam of the rear of described first crossbeam configuration, at under-seat and the high-voltage electrical apparatus installing component that configures between described first crossbeam and described second cross beam, described elec. vehicle is characterised in that

Described elec. vehicle also possesses above described high-voltage electrical apparatus installing component the 3rd crossbeam that configuration fixes described seat, and at least a portion of described high-voltage electrical apparatus installing component is present in the zone surrounded by described first crossbeam, described second cross beam and described the 3rd crossbeam.

2. elec. vehicle according to claim 1, is characterized in that,

Described high-voltage electrical apparatus installing component possesses battery module and electric subsidiary engine parts.

3. elec. vehicle according to claim 2, is characterized in that,

The electric subsidiary engine parts that described high-voltage electrical apparatus installing component possesses in the place ahead of described battery module or rear configures are formed with the space that can configure described first crossbeam or described second cross beam below described electric subsidiary engine parts.

4. according to the described elec. vehicle of claim 2 or 3, it is characterized in that,

Described high-voltage electrical apparatus installing component has the battery frame that extends to support described battery module along the overall width direction, and described battery frame is configured in the below of described the 3rd crossbeam.

5. elec. vehicle according to claim 2, is characterized in that,

Described electric subsidiary engine parts possess at least one in DC-DC conv, junction board, blowing engine.

6. elec. vehicle according to claim 1, is characterized in that,

Described high-voltage electrical apparatus installing component covers the lower side of this high-voltage electrical apparatus installing component by being fixed on protection housing on described first crossbeam and described second cross beam.

7. elec. vehicle according to claim 2, is characterized in that,

Described first crossbeam, described second cross beam, described the 3rd crossbeam be fixed in the interior side of the lower-edge beam that is configured in the pair of right and left of extending along the fore-and-aft direction of vehicle and the floor frame of the pair of right and left of extending along fore-and-aft direction on.

8. elec. vehicle according to claim 7, is characterized in that,

Described high-voltage electrical apparatus installing component also possesses housing and pipeline, and described housing forms the framework at the shallow end of upper opening, and is configured on described floor frame via fixed plate.

9. elec. vehicle according to claim 8, is characterized in that,

Described pipeline possesses the aspirating air pipe consisted of the cover member that covers described battery module and is configured in the bottom surface pipeline of the below of described battery module.