JP4121898B2 - In-vehicle structure of high-voltage components - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle-mounted structure for a high-voltage electrical component.
[0002]
[Prior art]
As a technology related to an in-vehicle structure of a battery box, which is a high-piezoelectric component, a structure is disclosed in which a battery box that stores a battery is fixed to the lower side of a floor panel, and a seat belt fixing portion in the floor panel is reinforced by the battery box. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP-A-9-272400 [0004]
[Problems to be solved by the invention]
If the battery box for storing the battery is fixed to the lower side of the floor panel as described above, the floor height is naturally increased, and the boarding / exiting property to the vehicle is deteriorated. In addition, if the floor height is increased to secure the vehicle interior height, the vehicle height increases, which is undesirable in terms of design. Conversely, if the vehicle height is suppressed, the vehicle interior height cannot be ensured.
[0005]
Therefore, an object of the present invention is to provide an on-vehicle structure of a high-piezoelectric component that can secure good boarding / exiting performance by keeping the floor height low, and can secure the vehicle compartment height while suppressing the vehicle height.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is directed to a seat on a vehicle floor panel (for example, the floor panel 11 in the embodiment) and juxtaposed in the vehicle width direction (for example, the front in the embodiment). A battery box (for example, the battery box 30 in the embodiment) is disposed between the seats 25), and a rear plate portion (for example, the rear plate portion 37B in the embodiment) provided at the rear portion of the battery box in the vehicle front-rear direction. Is arranged so as to be inclined so that the upper side is located on the rear side .
[0007]
Thus, in order to place a high-voltage electric component part between the sheets juxtaposed in the vehicle width direction even on Furoapane Le, it is possible to reduce the height of the floor panel.
[0009]
Furthermore, since the high-voltage components are arranged between the sheets juxtaposed in the vehicle width direction, the high-voltage components can be protected by the sheets.
[0010]
In addition, because high-voltage parts are arranged between the sheets on the floor panel that are juxtaposed in the vehicle width direction, assembly and maintenance are easier than when placing under the floor and under the seat. It becomes good.
[0011]
Furthermore, since the high voltage electrical equipment parts are arranged between the sheets juxtaposed in the vehicle width direction, the space under the seat can be effectively used.
[0012]
In addition, since the high-piezoelectric components are arranged between the sheets juxtaposed in the vehicle width direction, the height of the high-piezoelectric components can be made relatively high.
[0013]
Further, since the high voltage electrical parts are arranged between the sheets arranged side by side in the vehicle width direction, the high voltage electric parts can be arranged near the center of the vehicle.
[0014]
In addition, since the high-voltage components are arranged between the sheets juxtaposed in the vehicle width direction, the high-voltage components can be used as a tray base.
[0015]
The invention according to claim 2 is the invention according to claim 1, arranged a (cylindrical cells 57 in the example embodiment) longitudinal tubular cells before Fang Tsu in Teri box along a vehicle width direction A cooling device (for example, the cooling device 35 in the embodiment) is provided in the battery box, a front plate portion (for example, the front plate portion 37F in the embodiment) provided in a front portion of the battery box in the vehicle front-rear direction, and the It is characterized in that a wind guide opening (for example, wind guide openings 39 and 41 in the embodiment) is provided in the rear plate portion .
[0016]
Thus, since the cylindrical cells of the battery box arranged between the seats juxtaposed in the vehicle width direction are arranged with the length direction along the vehicle width direction, a plurality of cylindrical cells of the same length are arranged. The lengths can be arranged in an orderly manner in the vehicle width direction, and the number can be easily increased or decreased in a direction orthogonal to the vehicle width direction with a high degree of spatial freedom while maintaining the orderly arrangement. Furthermore, since the shape of the battery box can be changed relatively freely by changing the arrangement of the cylindrical cells while maintaining an orderly arrangement, for example, if the number of the lower side is reduced, the foot space for the passengers in the rear seat can be secured. .
[0017]
Furthermore, if the cooling air is made to flow in the vehicle front-rear direction, the cylindrical cell has its length direction orthogonal to the cooling air, and the cooling efficiency can be improved.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
An in-vehicle structure of a high piezoelectric component according to an embodiment of the present invention will be described below with reference to the drawings. In the following description, front / rear and left / right are front / rear and left / right when the vehicle is moving forward.
[0019]
Although not shown, this embodiment is applied to a hybrid vehicle that travels while appropriately controlling the driving force of the internal combustion engine and the driving force of the electric motor for traveling. The vehicle floor panel 11 is shown. As shown in FIGS. 1 and 2, the floor panel 11 has a center tunnel (vehicle body frame portion) 12 having a cross section perpendicular to the front-rear direction and an open cross-sectional shape that is convex upward in the center in the vehicle width direction. A side sill (vehicle body skeleton portion) 13 whose cross section perpendicular to the front-rear direction forms a closed cross-sectional shape is formed on both ends in the vehicle width direction so as to extend in the front-rear direction.
[0020]
As shown in FIG. 3, the center tunnel 12 has a linear main extension 15 having a substantially constant height and a front side of the main extension 15 that has a high front part and a low rear part. And an inclined extending portion 16 that is inclined. Here, below the center tunnel 12, for example, an exhaust pipe 17 extending behind the vehicle (not shown) mounted on the front of the vehicle is disposed.
[0021]
On the lower surface of the floor panel 11, as shown in FIG. 2, side frames (vehicle body skeleton portions) 19 that protrude downward are extended in the vehicle front-rear direction at both outer positions in the vehicle width direction of the center tunnel 12. To be fixed. These side frames 19 have a closed cross-section in a cross section perpendicular to the front-rear direction with the floor panel 11. Furthermore, on the lower surface of the floor panel 11, a side frame (vehicle body frame portion) 20 having a convex shape on the lower side is also fixed to the side sills 13 at both ends so as to extend in the vehicle front-rear direction. In these side frames 20, the cross section perpendicular to the front-rear direction forms a closed cross section with the floor panel 11.
[0022]
On the upper surface of the floor panel 11, a cross member (vehicle body skeleton portion) 21 that protrudes upward is fixed so as to intersect the center tunnel 12 and connect the side sills 13 on both sides. The cross member 21 has a cross section perpendicular to the vehicle width direction between the floor panel 11 and a closed cross section, and has a linear shape as a whole, and the inclined extending portion 16 of the main extending portion 15 of the center tunnel 12. It is joined crossing the side. A floor 26 is constituted by the floor panel 11, the cross member 21, and the like.
[0023]
A pair of front seats (seats) 25 having a seat cushion 23 for supporting the occupant's buttocks on the lower side and a seat back 24 for supporting the occupant's back on the rear side are provided on the upper side of the cross member 21. It is juxtaposed in the width direction.
[0024]
That is, the front end portions of the pair of left and right seat rails 27 are fixed to the left portion of the cross member 21, and the rear end portions of the seat rails 27 are fixed to the floor panel 11, The front seat 25 is slidably supported in the front-rear direction.
[0025]
The front end portions of the pair of left and right seat rails 27 are also fixed to the right side portion of the cross member 21, and the rear end portions of these seat rails 27 are fixed to the floor panel 11, The front seat 25 is slidably supported in the front-rear direction.
[0026]
And in this embodiment, it is on the main extension part 15 of the center tunnel 12 formed in the vehicle width direction center of the floor panel 11 and extending in the vehicle longitudinal direction as described above, and juxtaposed in the vehicle width direction. The entire battery box (high-voltage component) 30 is disposed between the seat cushions 23 of the pair of left and right front seats 25, that is, at the position of the center console. In other words, the battery box 30 is disposed at the intersection with the cross member 21 of the center tunnel 12 in a posture along the center tunnel 12 as a whole.
[0027]
As shown in FIG. 4, the battery box 30 has a case 31 constituting an outer portion thereof and a high voltage battery 32 provided in the case 31, that is, in the battery box 30 and exchanges electric power with a traveling electric motor. A motor ECU 33 and a junction board 34 that are provided in the case 31, that is, in the battery box 30 to control the operation of the electric motor for traveling, and in the case 31, that is, in the battery box 30, And a cooling device 35 to be circulated.
[0028]
Here, the case 31 of the battery box 30 is detachably attached to the upper plate portion 12A of the center tunnel 12 and the upper plate portion 21A of the cross member 21.
[0029]
The case 31 is attached to the center tunnel 12 and the cross member 21 and has a case main body 37 having an opening 36 in the upper part, and a lid 38 removably attached to the upper part of the case main body 37 so as to close the opening 36. have.
[0030]
The case body 37 has a stepped bottom plate portion 37A whose front side is partially tapered, a rear plate portion 37B that rises while being inclined so as to be located on the rear side from the rear edge of the bottom plate portion 37A, The left and right rear side plate portions 37C perpendicular to the vehicle width direction and parallel to each other by rising vertically from the left and right end edges of the rear portion of the fixed width of the bottom plate portion 37A, and the front left and right forming the tapered shape of the bottom plate portion 37A Left and right front side plate portions 37D that are closer to each other as they rise vertically from both edge portions, and left and right both end edges of the front end portion that are inclined so as to be positioned on the lower side toward the front end side with a constant width of the bottom plate portion 37A. From the front end side plate portion 37E which is perpendicular to the vehicle width direction and is parallel to each other and rising from the front end edge portion of the bottom plate portion 37A, the upper end is inclined so as to be located on the front side. Standing up And a front plate portion 37F. Here, a multistage slit-like air guide opening 39 is formed in the rear plate portion 37B, and a multistage slit-like air guide opening 41 is formed in the front end portion 37F. In addition, a plurality of internal thread portions 40 for attaching the lid 38 are formed on the opening 36 side of the case body 37.
[0031]
Here, attachment piece portions 42 are respectively formed on the rear plate portion 37B and the left and right front side plate portions 37D. The case body 37 is placed on the upper surface of the upper plate portion 12A of the center tunnel 12 and the upper surface of the upper plate portion 21A of the cross member 21 at the bottom plate portion 37A, and bolts 44 are respectively inserted into the attachment holes 43 of the attachment piece portions 42. And the bolts 44 are screwed into the base 45 welded to the upper surface of the upper plate portion 12A of the center tunnel 12 and the female screw portions 46 formed on the cross member 21, respectively, so that the case main body 37 is engaged with the center tunnel 12 And it is fixed to the cross member 21.
[0032]
The lid 38 has a shape that is slightly narrowed toward the upper side, and has an upper plate portion 38A along the horizontal direction. A plurality of internal thread portions 47 are formed on the upper plate portion 38A.
[0033]
Here, a plurality of attachment piece portions 48 extending downward from the lower end portion are formed in the lid body 38, and screws 50 are respectively inserted into attachment holes 49 of these attachment piece portions 48, and these screws 50 are attached to the case. The lid body 38 is fixed to the case main body 37 by being screwed into a female screw portion 40 formed on the opening 36 side of the main body 37.
[0034]
A cooling device 35 is disposed at the front of the case body 37. The cooling device 35 includes a duct 52 and a fan 53 provided in the duct 52, and is disposed adjacent to the air guide opening 41.
[0035]
A high voltage battery 32 is disposed at the rear of the case body 37. The high-voltage battery 32 is made of resin at both ends in the length direction in a state where a plurality of cylindrical cells 57 having the same shape are parallel to each other and aligned in the axial direction, that is, in the length direction. The support board 58 is supported. These cylindrical cells 57 are electrically connected in series. Such a high-voltage battery 32 is housed in the rear portion of the case main body 37 in a state where the length direction of the cylindrical cell 57 is aligned in the left-right direction, that is, the vehicle width direction. In addition, since the high voltage battery 32 is composed of a plurality of cylindrical cells 57 and the plurality of cylindrical cells 57 are arranged with the length direction aligned with the vehicle width direction, the length direction is The arrangement of the cylindrical cells 57 can be changed while maintaining the state of being arranged in an orderly manner. In this case, as shown in FIG. 3, the rear row of the cylindrical cells 57 is arranged slightly inclined so that the upper row is positioned on the rear side in accordance with the shape of the rear plate portion 37 </ b> B of the case 31.
[0036]
A mounting plate 59 is disposed on the upper side of the high-voltage battery 32, and the mounting plate 59 is attached to the support board 58. The junction board 34 is attached to the front side of the mounting plate 59 and the motor ECU 33 is attached to the rear side. The lid 38 is attached to the case main body 37 so as to cover the junction board 34 and the motor ECU 33.
[0037]
Here, the cooling device 35 and the high voltage battery 32 are set in a shape relationship with the case 31 so as to be positioned and fixed with respect to the case 31 by being housed in the case 31. The cooling device 35 and the high voltage battery 32 may be positioned and fixed to the case 31 with screws or the like. When screwing in this way, the fan 53 may be directly attached to the side of the wind guide opening 41 of the case 31 without providing the duct 52 of the cooling device 35. That is, the case 31 also serves as the duct 52.
[0038]
As described above, the high voltage battery 32 is arranged at the lower rear side of the cooling device 35, and the junction board 34 and the motor ECU 33 are arranged at the upper rear side of the cooling device 35. Then, the cooling device 35 generates cooling air by sucking the air in the passenger compartment from the air guide opening 41 into the duct 52 and sending it out to the rear by the fan 53, and a part of the cooling air flows backward. Thus, the air passes through the cylindrical cells 57 of the high-voltage battery 32 and is discharged into the vehicle compartment from the air guide opening 39 of the rear plate portion 37B. At this time, the cooling air cools the cylindrical cells 57. To do. The remaining part of the cooling air once flows upward, then flows backward, passes through the outside of the junction board 34 and the motor ECU 33, and is discharged from the air guide opening 39 of the rear plate portion 37B into the vehicle interior. At this time, the cooling air cools the junction board 34 and the motor ECU 33.
[0039]
The battery box 30 as described above is attached to the floor 26 in a state in which the cooling device 35, the high voltage battery 32, the motor ECU 33, and the junction board 34 are previously stored in the case 31 when the vehicle is assembled. As described above, the storage unit 60 for storing the battery box 30 is covered with the floor lining 61 formed. Note that a mesh-like opening 62 is formed in the front portion of the storage portion 60 of the floor lining 61, and the cooling device 35 of the battery box 30 sucks the vehicle interior air through the opening 62. Further, the storage portion 60 of the floor lining 61 is formed with a mesh-shaped opening 63 at the rear, and the cooling device 35 of the battery box 30 discharges cooling air into the vehicle compartment via the opening 63.
[0040]
An insertion hole 64 is formed in the upper portion of the storage unit 60 of the floor lining 61, and the upper hole 38 </ b> A of the lid body 38 of the battery box 30 is inserted from the insertion hole 64 in a state of being disposed so as to cover the battery box 30. The formed female screw portion 47 is exposed. Then, the tray 66 is placed on the battery box 30 via the floor lining 61, and screws 68 are respectively inserted into the mounting holes 67 of the tray 66, and these screws 68 are screwed into the female screw portions 47 of the battery box 30. As a result, the tray 66 is fixed on the battery box 30 between the left and right front seats 25, that is, at the position of the center console.
[0041]
The tray 66 is provided with a drink holder portion 70 for placing a beverage container and a placement recess 71 for placing an article on the upper surface side. Note that an armrest portion on which the occupant places his arms may be provided on the tray 66. Further, the tray 66 may be foldable.
[0042]
According to the vehicle-mounted structure of the battery box 30 of the present embodiment described above, the battery box 30 is disposed between the front seats 25 juxtaposed in the vehicle width direction on the center tunnel 12 of the floor panel 11. The height of the floor panel 11 can be kept low. Therefore, it is possible to ensure a good boarding / exiting property to the vehicle, and to secure the vehicle interior height while suppressing the vehicle height.
[0043]
Further, since the battery box 30 is disposed on the center tunnel 12 having particularly high rigidity in the floor panel 11, the battery box 30 is not easily affected by the floor deformation. Therefore, since it is not necessary to increase the rigidity of the battery box 30 more than necessary, an increase in cost can be suppressed.
[0044]
Furthermore, since the battery box 30 is disposed between the front seats 25 juxtaposed in the vehicle width direction, the battery box 30 can be protected by the front seat 25. Therefore, it is not necessary to increase the rigidity of the battery box 30 more than necessary from this point, and as a result, an increase in cost can be suppressed.
[0045]
In addition, since the battery box 30 is arranged between the front seats 25 arranged side by side in the vehicle width direction on the floor panel 11, the assemblability is higher than the case where the battery box 30 is arranged below the floor and the case below the seat. In addition, maintainability is improved.
[0046]
Furthermore, since the battery box 30 is disposed between the front seats 25 juxtaposed in the vehicle width direction, the space under the seat can be used effectively. Therefore, a CD changer or the like can be arranged under the seat, or the underside of the seat can be used as a foot space for putting a passenger's foot in the rear seat.
[0047]
In addition, since the battery box 30 is disposed between the front seats 25 juxtaposed in the vehicle width direction, the height of the battery box 30 can be made relatively high. Accordingly, since the capacity of the battery box 30 can be secured, peripheral devices can be accommodated in the battery box 30 as well. As a result, since peripheral devices such as the junction board 34 and the motor ECU 33 can be collectively arranged, it is possible to prevent short circuit and disconnection with a short wiring.
[0048]
Furthermore, since the battery box 30 is disposed between the front seats 25 juxtaposed in the vehicle width direction, the battery box 30 can be disposed near the center of the vehicle. Therefore, the weight balance of the vehicle can be improved.
[0049]
In addition, since the battery box 30 is disposed between the front seats 25 juxtaposed in the vehicle width direction, the battery box 30 can be used as a tray 66 tray. Therefore, the cost can be reduced.
[0050]
In addition, since the cylindrical cells 57 of the battery box 30 arranged between the front seats 25 juxtaposed in the vehicle width direction are arranged with the length direction along the vehicle width direction, a plurality of the same length The cylindrical cells 57 can be arranged in an orderly manner in the vehicle width direction, and the number of tubes can be easily increased in a direction perpendicular to the vehicle width direction while maintaining the orderly arrangement. You can increase or decrease. Furthermore, since the shape of the battery box 30 can be changed relatively freely by changing the arrangement of the cylindrical cells 57 while maintaining an orderly arrangement, the rear plate portion 37B can be removed by reducing the number of the lower side as described above. It can be tilted, and the foot space for the occupant in the rear seat can be secured.
[0051]
Furthermore, since the cooling device 35 causes the cooling air to flow in the vehicle front-rear direction, the cylindrical cell 57 has its length direction orthogonal to the cooling air, and the cooling efficiency can be improved.
[0052]
A louver or the like may be provided so that a part of the cooling air generated by the fan 53 in the duct 52 is guided rearward as it is, and the remaining part is guided rearward while being guided upward.
[0053]
Moreover, although the case where the battery box 30 is disposed between the left and right front seats 25 has been described as an example, it can also be disposed between other seats.
[0054]
【The invention's effect】
As described above in detail, according to the invention according to claim 1, for placing the high-voltage electric component part between the sheets juxtaposed in the vehicle width direction even on Furoapane Le, to reduce the height of the floor panel Can do. Therefore, it is possible to ensure a good boarding / exiting property to the vehicle, and to secure the vehicle interior height while suppressing the vehicle height.
[0056]
Furthermore, since the high-voltage components are arranged between the sheets juxtaposed in the vehicle width direction, the high-voltage components can be protected by the sheets. Therefore, from this point, it is not necessary to increase the rigidity of the high-piezoelectric component more than necessary, so that an increase in cost can be suppressed.
[0057]
In addition, because high-voltage parts are arranged between the sheets on the floor panel that are juxtaposed in the vehicle width direction, assembly and maintenance are easier than when placing under the floor and under the seat. It becomes good.
[0058]
Furthermore, since the high voltage electrical equipment parts are arranged between the sheets juxtaposed in the vehicle width direction, the space under the seat can be effectively used. Therefore, a CD changer or the like can be arranged under the seat, or the underside of the seat can be used as a foot space for putting a passenger's foot in the rear seat.
[0059]
In addition, since the high-piezoelectric components are arranged between the sheets juxtaposed in the vehicle width direction, the height of the high-piezoelectric components can be made relatively high. Accordingly, since the volume of the high voltage electrical component can be secured, peripheral devices can be accommodated in the high voltage electrical component in a batch. As a result, the peripheral devices can be integrated and arranged, so that the wiring can be shortened and short circuit and disconnection can be prevented.
[0060]
Further, since the high voltage electrical parts are arranged between the sheets arranged side by side in the vehicle width direction, the high voltage electric parts can be arranged near the center of the vehicle. Therefore, the weight balance of the vehicle can be improved.
[0061]
In addition, since the high-voltage components are arranged between the sheets juxtaposed in the vehicle width direction, the high-voltage components can be used as a tray base. Therefore, the cost can be reduced.
[0062]
According to the invention of claim 2, since the cylindrical cells of the battery box arranged between the seats juxtaposed in the vehicle width direction are arranged with the length direction along the vehicle width direction, Multiple cylindrical cells can be arranged in an orderly manner in the vehicle width direction, and the number of cells can be easily arranged in a direction orthogonal to the vehicle width direction with a high degree of freedom in space while maintaining the orderly arrangement. Can be increased or decreased. Furthermore, since the shape of the battery box can be changed relatively freely by changing the arrangement of the cylindrical cells while maintaining an orderly arrangement, for example, if the number of the lower side is reduced, the foot space for the passengers in the rear seat can be secured. .
[0063]
Furthermore, if the cooling air is made to flow in the vehicle front-rear direction, the cylindrical cell has its length direction orthogonal to the cooling air, and the cooling efficiency can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an on-vehicle structure of a high-voltage electrical component according to an embodiment of the present invention.
FIG. 2 is a front sectional view showing an on-vehicle structure for a high-voltage electrical component according to an embodiment of the present invention.
FIG. 3 is a side sectional view showing an on-vehicle structure for a high-voltage electrical component according to an embodiment of the present invention.
FIG. 4 is an exploded perspective view showing a vehicle-mounted structure of a high-voltage electrical component according to an embodiment of the present invention.
FIG. 5 is a perspective view showing floor lining and tray attachment to a high-voltage component in the on-vehicle structure of the high-voltage component according to one embodiment of the present invention.
[Explanation of symbols]
11 Floor panel 12 Center tunnel 25 Front seat (sheet)
30 Battery box (high-voltage parts)
57 Cylindrical cell

Claims (2)

A on Furoapane Le of the vehicle, between the sheets juxtaposed in the vehicle width direction, placing the battery box, the vehicle longitudinal direction of the plate portion after providing in the rear portion is positioned on the rear as the upper side of the battery box An in-vehicle structure for a high-voltage electrical component, which is arranged so as to be inclined . Before Kiba Tsu tubular cells in Terri box is arranged along the length direction of the vehicle width direction, wherein the cooling device in the battery box is provided, the front is provided in the front portion the vehicle longitudinal direction of the battery box plate portion 2. The on-vehicle structure for high-voltage electrical components according to claim 1, wherein a wind guide opening is provided in the rear plate .

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